Instruments To Supplement And Take The Place Of Hands

Abstract

An instrument to supplement and take the place of hands. The instrument comprises a support means surrounding the operator's head with a first portion of the support means contacting the back of the operator's head and a second portion of the support means positioned ahead of the operator's chin. Tool holding means is affixed to the second portion of the support means and extends forwardly thereof. A tool is supported by the tool holding means. A tool actuator is affixed to the second portion of the support means and extends rearwardly thereof and in a position contactable by the operator's chin. The tool actuator is operatively connected to the tool whereby the tool may be manipulated by movement of the operator's head and through the interaction of the tool actuator and the operator's chin.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to instruments to supplement or to take the place of hands, and more particularly to instruments supported primarily by the operator's head and enabling the manipulation of various tools and devices controlled by movement of the operator's chin.

2. Description of the Prior Art

There are a number of instances wherein the manipulation of tools and devices by the hands is either undesirable or impossible. In the case of invalids or handicapped persons, the use of the hands and arms may be undesirable or impossible because of accident, birth defects, surgery, disease, paralysis or the like. Prior art workers have developed a number of prothetic devices to assist the handicapped who have portions of their hands or arms missing. However, in many instances the nature of the person's handicap is such that he cannot effectively use such devices.

In addition, head-supported instruments have been devised, as exemplified by that taught in U.S. Pat. No. 2,785,462. However, such devices are generally limited in their use, require movement of the entire head and do not permit fine adjustment and precise manipulation of the tools or devices being used. In addition, electrical feeding devices and the like have been devised. One such device is taught in U.S. Pat. No. 3,317,061. However, such devices are generally characterized by the fact that the closing of a switch by a portion of the patients body results in the performance by the device of a series of predetermined, sequential operations. Thus, the operator is not free to perform operations at will and in any sequence he may desire.

The present invention is directed to instruments to aid the handicapped. The instruments of the present invention may be used to accurately and precisely manipulate all manner of tools and devices. The nature of the devices manipulated by the instruments of the present invention do not constitute a limitation on the invention. The terms "tool" or "device" are intended to include such things as grasping means, holding means, writing and drawing instrument, cutting devices, eating utensils and the like.

The instruments of the present invention may also be used to manipulate tools and perform work where the materials being handled should not come into direct contact with the hands. For example, the instruments of the present invention may be used to work with radioactive parts and the like. Finally, the instruments of the present invention may be used to assist the hands. In many instances, it is desirable to have means to hold or manipulate tools or work pieces, to perform work in addition to the work being performed by the hands. Thus, the instruments of the present invention may be used during surgery, during the assembly of complex devices, the wiring of electronic components and the like.

The instruments of the present invention require the ability only to move the head and chin. With them, the operator can perform difficult and precise operations at will and in any desired sequence.

SUMMARY OF THE INVENTION

The invention relates to instruments adapted to take the place of or to supplement the hands. The instruments are supported primarily on the operator's head or neck and are actuated by movement of the operator's chin.

In general, the device of the present invention comprises a support surrounding the operator's head with a portion of the support located in front of the operator's chin. The last mentioned portion of the support has a tool holding means extending forwardly thereof and tool actuating means extending rearwardly thereof to a position adjacent the operator's chin. The tool actuator is operatively connected to the tool, via the tool holder, so that manipulation of the actuator by the operator's chin will result in the desired manipulation of the tool.

In one embodiment, forward and rearward movement of the chin will cause reciprocation of the actuator to open and close various holding devices. In another embodiment, similar movement of the chin will cause the movement of an eating utensil between a food contacting position and a position adjacent the operator's mouth. In yet another embodiment, the tool holder means and the support are capable of scissors-type action. This scissors-type action may be achieved through a forward and rearward movement of the chin against an actuator means. Again, the tool holding means may be provided with various grasping elements, as will be described hereinafter.

In the instruments of the present invention, the actuator may be so configured as to be responsive to an up and down movement of the operator's chin. Such an actuator is operatively connected to the tool or implement being used. Again, such an actuator may be used to operate various grasping devices, eating utensils or the like.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a fragmentary cross-sectional view taken along section line 2--2 of FIG. 1.

FIG. 3 is a fragmentary cross-sectional view taken along the section line 3--3 of FIG. 1.

FIG. 4 is a perspective view of the headband of the embodiment of FIG. 1.

FIG. 5 is a cross-sectional view taken along the section line 5--5 of FIG. 1.

FIG. 6 is a cross-sectional view taken along the section line 6--6 of FIG. 1.

FIG. 7 and 8 are perspective views of tools which may be employed with the embodiment of FIG. 1.

FIG. 9 is a fragmentary elevational view of another embodiment of the present invention.

FIG. 10 is a cross-sectional view taken along the section line 10--10 of FIG. 9.

FIGS. 11 through 14 are perspective views illustrating tools which may be used with the embodiment of FIG. 9.

FIGS. 15 and 16 are elevational views of weights which may be used with the embodiments of FIGS. 1 and 9.

FIG. 17 is an elevational view of yet another embodiment of the present invention.

FIG. 18 is an exploded view of the actuator and yoke assembly of the embodiment of FIG. 17.

FIG. 19 is an elevational view of a weight which may be used with the embodiment of FIG. 17.

FIG. 20 is a perspective view of another embodiment of the present invention.

FIG. 21 is a fragmentary plan view illustrating the yoke and actuator assembly of the embodiment of FIG. 20.

FIG. 22 is a side elevational view, partly in cross-section, illustrating the yoke, actuator and support assembly of the structure of FIG. 20.

FIG. 23 is a side elevational view similar to FIG. 22 and illustrating the actuator in its locked position.

FIG. 24 is a fragmentary, side elevational view, partly in cross-section, and illustrating another embodiment of the present invention.

FIG. 25 is a side elevational view, similar to FIG. 24, and illustrating the actuator of FIG. 24 in its locked position.

FIG. 26 is a fragmentary plan view of the yoke and actuator assembly of FIG. 24 and 25.

FIGS. 27 and 28 illustrate additional tools which may be used with the embodiments of FIGS. 17 and 20.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

One embodiment of the present invention is illustrated in FIG. 1. This embodiment comprises a yoke 1 having laterally and rearwardly extending arms 1a and 1b. The arms 1a and 1b are joined at 2 and 3, respectively, to a loop element 4 passing about the operator's head. The loop element 4 carries an adjustable head or neck strap, generally indicated at 5.

The yoke 1 carries an actuating means, generally indicated at 6. The actuating means extends rearwardly of the yoke and toward the operator's chin. Thus, it will be understood that the embodiment of FIG. 1 is supported on the operator's head both by the interaction of the adjustable strap 5 and the back of the operator's head or neck and by the interaction of the actuator 6 and the operator's chin. The yoke 1 also supports a tool holder, generally indicated at 7. The tool holder extends forwardly of the yoke and carries at its forwardmost end a tool, generally indicated at 8.

Describing the embodiment of FIGURE 1 in greater detail, it will be understood by one skilled in the art that the manner in which the loop element 4 is attached to the yoke arms 1a and 1b does not constitute a limitation on the present invention. However, for purposes of an exemplary showing, FIG. 2 illustrates one form of attachment means of the type shown at 2 and 3 in FIG. 1.

In FIG. 2, the rearwardly extending portion of the yoke arm 1a is shown as having a central bore 9. The bore is of such size as to slidably receive the end of the loop element 4. The end of the bore 9 is counter-sunk as at 9a. The end of the loop element 4 has, slidably mounted thereon, a split metal ring 10 having a conical surface adapted to cooperate with the counter-sink 9a.

The end of the yoke arm portion 1a is externally threaded as at 11. A cap means 12 is provided, having a central perforation through which the loop element 4 extends. The cap 12 is internally threaded as at 13. It will therefore be understood that as the cap 12 is threadedly engaged on the yoke arm 1a, the split ring 10 will be forced into the counter-sink 9a. This will cause the split ring 10 to contract and firmly grip the end of the loop element 4.

The adjustable head strap 5 may be of any suitable construction. As shown in FIG. 4, the head strap comprises a metallic band 14 supporting a head-engaging member 15. The member 15 may be made of leather, plastic or the like and may be lined, as at 16, with any suitable material which may be comfortable to the operator and which may tend to prevent the slipping of the band from the operator's head.

The ends of the element 14 of the head band are adjustably affixed to the loop element 4. The manner in which this is accomplished is not intended to constitute a limitation on the present invention. For purposes of an exemplary showing, however, both ends of the head band element 14 may be provided with the structure illustrated in FIG. 3.

In FIG. 3, a cylindrical element 17 is illustrated as being slidably mounted on the loop element 4. The cylindrical element 17 has a flat 18 produced thereon. The head band element 14 is attached to the cylindrical element 17 at the position of the flat 18 by a screw 19. A lock washer 20 may be located between the head of the screw 19 and the head strap element 14. Similarly, a standard washer 21 may be located between the head strap element 14 and the flat 18 of the cylindrical element 17. The cylindrical element 17 may also be provided with a set screw 22 extending through a threaded perforation in the cylindrical element and contacting the loop element 4.

From the above description, it will be understood that by means of the set screw 22 on both sides of the head strap 5, the position of the head strap along the loop element may be adjusted. Similarly, through the use of the screw 19 on both sides of the head strap, the angularity of the head strap, with respect to the loop element, may be adjusted.

FIG. 5 is a cross-sectional view through the central portion of the yoke 1 and the actuator mechanism 6. The central portion of the yoke 1 has a perforation 23 extending therethrough. This perforation is flared at its end, as at 24. The perforation 23 is so sized as to receive the tubular tool holder 7. The tool holder 7 may be locked in place in the yoke 1 by means of a conical split ring 25 and a cap 26, similar to the split ring 10 and cap 12 described with respect to FIG. 2.

The tool actuator comprises a disc-like element 27 of dished configuration with an actuating rod 28 affixed thereto. The manner in which the actuating rod 28 is affixed to the disc 27 does not constitute a limitation on the present invention. For purposes of an exemplary showing, the disc 27 is illustrated as having an externally threaded fitting 29 with a central bore 30 therein. The fitting 29 is affixed to the disc 27 in any suitable manner such as soldering. The bore 30 is so sized as to receive the end of the actuating rod 28. The actuating rod is held in the fitting 29 by means of a conical split ring 31 and cap 32 of the general type previously described.

The actuating rod 28 extends through a bushing 33, which may take the form of a nylon bearing or the like, and through the tubular tool holder 7. It will be noted that the disc 27 is urged toward the operator's chin by a compression spring 34. One end of the compression spring abuts the cap 26, while the other end of the compression spring abuts the cap 32.

FIG. 6 illustrates the forwardmost end of the tool holder 7. At its forwardmost end, the tool holder 7 is provided with a cylindrical sheath 35. The sheath 35 may be affixed to the tool holder 7 in any suitable manner. For purposes of an exemplary showing, it is simply illustrated as being affixed by a force fit.

The actuating rod 28 extends beyond the tool holder 7 and into the sheath 35. The forwardmost end of the actuating rod 28 is threaded as at 28a. In FIGS. 1 and 6, the tool 8 is illustrated as comprising a body portion 36 supporting at its forward end two pairs of opposed spring fingers 37 through 40. In both FIG. 1 and FIG. 6, the actuating rod 28 is illustrated in its forwardmost position and the spring fingers 37 through 40 are in their "open" position. It will be understood from FIG. 6 that if the actuating rod 28 were to move to the right, the tool 8 would be drawn partway into the sheath 35 causing the pairs of spring fingers 37 through 40 to close toward each other.

The operation of the embodiment of FIG. 1 may now be described. First of all, the device is fitted to the operator's head (as shown in FIG. 1) and the head strap 5 is adjusted so that the device is supported both by the interaction of the head strap 5 and the back of the operator's head or neck and by the interaction of the actuator disc 27 and the operator's chin. It will be apparent that the compression spring 34 will urge the actuating disc 27 against the operator's chin. When the operator moves her chin forwardly, against the action of the spring 34, the actuating rod 28 will also move forwardly causing the tool 8 to move partway out of the sheath 35. FIG. 6 illustrates the actuating rod 28 and tool 8 in its forwardmost position. In this position, it will be evident that the spring fingers will be free to assume their "open" position. The fingers may be located about any desired implement or object to be picked up. The operator thereafter moves her chin rearwardly to a relaxed position. This permits the compression spring 34 to move the actuating disc 27 and actuating rod 28 to their rearward positions. The tool 8 will then be drawn partway into the sheath 35 and the spring fingers 37 through 40 will be caused to close about the object being picked up.

It will additionally be noted that the disc 27, actuating rod 28 and tool 8 are fully rotatable. Thus, if the operator contacts the disc 27 with her chin and then causes her chin to rotate and/or her head to tilt slightly, upon repetition of such action the tool 8 can be rotated in either direction, depending upon the direction in which the operator rotates her chin and/or tilts her head.

In most instances, it will be desirable to provide means to counterbalance the device of the present invention, particularly when it is carrying a load. While this may be accomplished by providing a supporting foot contacting the operator's chest (as will be described hereinafter), it may also be accomplished through the use of a counterweight (generally indicated at 41 in FIG. 1) affixed to the loop element 4. FIGS. 15 and 16 illustrate exemplary forms of counterweights. In FIG. 15 a spherical weight 42 is shown affixed to a conventional spring clip means 43. FIG. 16 illustrates a similar but larger counterweight 44 affixed to the same sort of spring clip 45. The size of the counterweight used will depend upon the individual operator and the tasks she is performing.

The nature of the tools which may be used with the embodiment of FIG. 1 is substantially without limit. FIG. 7 and 8, for example, illustrate additional exemplary tools. In FIG. 7, the tool comprises a cylindrical body portion 46 with a pair of opposed spring jaws 47 and 48 affixed to the forward end thereof. The body 46 will have a threaded perforation therein adapted to receive the forwardmost end 28a of the actuating rod 28. As in the case of the tool 8, described above, as the tool of FIG. 7 is drawn into the sheath 35, the spring jaws 47 and 48 will be forced toward each other to grasp the desired implement or object.

The embodiment illustrated in FIG. 8 again comprises a body 49 and a pair of opposed spring jaws 50 and 51. The embodiment of FIG. 8 differs from that of FIG. 7 only in that the grasping part of jaws 50 and 51 will hold the implement or object being picked up thereby at a different angle.

FIG. 9 illustrates a second embodiment of the present invention. In this embodiment, the yoke comprises a pair of crossed rods 52 and 53. The upper ends of the rods 52 and 53 may terminate in fittings similar to those shown at 2 and 3 in FIG. 1 and described in FIG. 2. In such circumstances, the rods 52 and 53 will be affixed to a loop element identical to the loop element 4 of FIG. 1 and bearing an adjustable head strap identical to that described with respect to FIG. 5. Alternatively, the rods 52 and 53 may comprise a unitary structure the upper ends forming a continuous loop equivalent to the loop element 4 of FIG. 1.

In the embodiment of FIG. 9, the actuator comprises a U-shaped member 54 adapted to be engaged by the operator's chin. The U-shaped member 54 has a forwardly extending flange 55. A pair of links 56 and 57 are pivotally affixed both to the rod 52 and flange 55. Similarly, a second pair of links 58 and 59 are pivotally affixed to the rod 53 and the flange 55. It will be apparent that if the operator uses her chin to move the member 54 forwardly, the pivoted links 56 through 59 will cause the yoke elements 52 and 53 to move with respect to each other in a scissors-like action. A stop means 60 may be provided on the member 54. The stop means 60 will contact the link 57 and determine the forwardmost position of the member 54. The stop member 60 may be of any suitable type including a set screw, and will prevent the member 54 from traveling too far forward to an "over-center" position.

In this embodiment, the tool holder comprises extensions 52a and 53a of the yoke members 52 and 53, respectively. The tool holder elements 52a and 53a terminate respectively in any suitable type of tool engagement means, generally indicated at 61 and 62.

The tool engaging means 61 and 62 may be identical, and an exemplary embodiment is illustrated in FIG. 10. In FIG. 10, the lowermost end of tool holder element 52a is shown, together with a rod-like portion of a tool 63. Both elements are inserted in the bore 64 of a fitting 65. The bore 64 is countersunk at both ends of the fitting 65, and both ends of the fitting 65 are externally threaded. The lowermost end of the tool holder element 52a is locked in the fitting by the interaction of a conical split ring 66 and a cap 67, in the manner described above. Similarly, the tool portion 63 is locked in the fitting 65 by the conical split ring 68 and threaded cap member 69.

For purposes of an exemplary showing, the tool in FIG. 9 is illustrated as being a conventional hemostat 70. The hemostat 70 has, pivotally affixed thereto, rod like portions 63 and 63a which are inserted in the fittings 61 and 62.

From the above description, it will be evident that when the operator uses her chin to cause the member 54 to move forwardly, the yoke elements 52 and 53 will perform a scissors-action, resulting in the movement of tool holder elements 52a and 53a toward each other. This, in turn, will cause the hemostat jaws 70a and 70b to close. The hemostat 70 may be used directly as a tool, or it may serve to hold additional tool means.

As an example of the latter, FIG. 13 illustrates a ball point pen 71 held in a tubular pen holder 72. The pen holder 72 has a first portion 72a into which the pen 71 is inserted, and a second portion 72b extending latterally and at an angle to the pen. One of the jaws 70a and 70b of the hemostat 70 may be inserted into the portion 72b of the pen holder. The remaining jaw of the hemostat may be clamped to the exterior surface of the portion 72b so that the pen is firmly held. The angle between the pen holder portions 72a and 72b will be appropriately chosen so that the pen will be held at a comfortable writing angle.

FIG. 14 illustrates another exemplary tool. In this instance, a tubular holder element 73 is illustrated having a body portion 73a and an extension of slightly smaller diameter 73b. A blade 74 is affixed to the body portion 73a. As in the case of the pen of FIG. 13, one of the jaws 70a and 70b of the hemostat may be inserted in the blade holder portion 73b, while the remaining jaw may be caused to close against the exterior surface of the blade holder portion 73b. Thus, the device of FIG. 9 may be used for cutting and the like.

FIG. 11 illustrates a pair of gripping jaws 75 and 76 which may be used with the embodiment of FIG. 9. The gripping jaws 75 and 76 each comprise tubular members having gripping ends 75a and 76a covered with rubber, plastic, or other frictional material. The gripping elements 75 and 76 may be attached to the tool holder elements 52a and 53a at 61 and 62 in the same manner described with respect to the portions 63 and 63a of the hemostat 70.

FIG. 12 illustrates another exemplary pair of gripping elements 77 and 78 having gripping ends 77a and 78a. The gripping elements 77 and 78 differ from those of FIG. 11 only in the angular relationship of their gripping ends.

The use of tools such as elements 77 and 78 need not be limited to grasping articles. For example, if elements 77 and 78 are inserted in tool holder elements 52a and 53a with the ends 77a and 78a oriented downwardly, they may be used to operate a typewriter or the like.

Again it will be understood that the embodiment of FIG. 9 may be provided with counterweights in the same manner described with respect to the embodiment of FIG. 1.

FIGS. 17 and 18 illustrate the embodiment of FIG. 1 provided with an appropriate tool holder for use with an eating utensil. In this instance, the yoke, loop element and actuator are substantially identical, and like parts have been given like index numerals.

It will be evident from FIGS. 17 and 18 that the tool actuator mechanism of this embodiment differs from that shown in FIGS. 1, 5 and 6 only in that the actuator rod 28b is very much shorter than the rod 28 of FIGS. 5 and 6 and terminates in an upturned end 28c. As a consequence, the tube 7a, in which the actuator 28b rides, is also shortened, extending only a small distance beyond the yoke.

In this embodiment, the tool comprises an eating utensil, generally indicated at 79. The tool holder comprises a stationary rod 80 appropriately affixed to the yoke 1. For purposes of an exemplary showing, the rod 80 is illustrated in FIG. 17 as passing through a perforation in the yoke 1 and into the hollow lateral arm 1a of the yoke. The stationary rod 80 is clamped in place by means of a set screw 81.

The stationary rod 80 has pivotally affixed thereto (as at 82) an S-shaped utensil holding rod, generally indicated at 83. At one end, the rod 83 supports the eating utensil 79 by virtue of any suitable form of clamp means (generally indicated at 84 and 85). At the other end, the rod 83 supports a counterweight 86 intended to counterbalance the eating utensil 79. The rod 83 may be made up of segments joined together by a pair of rotatable joints generally indicated at 87 and 88. These joints may, for example, be identical to that shown in FIG. 10. In addition, the rod 83 may have a swingable joint, generally indicated at 89 at which point the rod segments are held together by a set screw. The rotatable joints 87 and 88 and swingable joint 89 will permit complete adjustment of the position of the eating utensil 79.

The tool holder in the embodiment of FIG. 17 also includes a pair of levers 90 and 91. The lever 90 is pivotally affixed to the stationary rod 80 as at 92. The levers 90 and 91 are pivotally joined together as at 93. Finally, the lever 91 is pivotally affixed to the utensil holding rod 83 as at 94. The free end of the lever 90 has a link 95 pivotally affixed thereto, as at 96. The free end of the link 95 has a perforation therein, through which the hooked end 28c of the actuating rod 28b extends.

It will be understood by one skilled in the art that, as in the case of the embodiment of FIG. 1, the device of FIG. 17 will be properly fitted to the operator's head, through adjustment of the head strap. Furthermore, an appropriate counterweight will be affixed to the loop element 4, similar to the counterweight illustrated at 41 in FIG. 1. Since, however, the tool holding mechanism of the embodiment of FIG. 17 is heavier and more complex than that of FIG. 1, a heavier counterweight will be required. An exemplary counterweight is illustrated in FIG. 19 at 97. In this instance, the counterweight is shown as being cylindrical in configuration and affixed to a spring clamp 98 which may be identical to the spring clamps 43 and 45 of FIGS. 15 and 16.

The operation of the embodiment of FIG. 17 may now be described. First of all, it must be understood that the tool holding structure is so configured as to cause the eating utensil 79 to swing between a forwardmost food contacting position and a rearwardmost position adjacent the operator's mouth. For purposes of more clearly illustrating the parts, the utensil 79 is illustrated in FIG. 17 in a position intermediate its food contacting position and its position adjacent the operator's mouth. It will be understood that if the operator fully depresses the actuator disc 27 with her chin, the actuating rod 28b will move to its forwardmost position. Since lever 90 is operatively connected to the actuating rod 28b by link 95, the lever 90 will be caused to pivot in a clockwise direction about its pivot point 92. This, in turn, will move the lever 91 upwardly (as viewed in FIG. 17) causing the utensil holding rod 83 to pivot in a clockwise direction about pivot point 82. In this manner, the eating utensil 79 will be brought downwardly (as viewed in FIG. 17) to its food contacting position.

When the utensil 79 is in its food contacting position, the operator may then shift her head causing the utensil to pick up food. Thereafter, the operator may move her chin rearwardly, permitting the spring 34 to move the actuating rod 28b to its rearwardmost position. This, in turn, will cause a counterclockwise rotation of the lever 90 about the pivot point 92. The utensil holding rod 83 will similarly rotate in a counterclockwise direction about the pivot point 82 (by virtue of the action of lever 91). This, in turn, will bring the utensil 79 to a position near the actuator disc 27 and adjacent the patient's mouth. Since this is the normal position assumed by the device (by virtue of the action of spring 34) the operator may now take the utensil 79 into her mouth and remove the food therefrom. By repetition of the foregoing procedures, the operator may use the embodiment of FIG. 17 to eat, having complete control of the utensil 79 through simple movements of her head and chin.

FIGS. 20 through 23 illustrate a modified embodiment of the present invention, similar to that shown in FIG. 17. The embodiment of FIGS. 20 through 23 differs primarily in the actuator and the means for mounting the device to the operator's head.

In this embodiment, the yoke 99 is affixed, as at 100 and 101 to a pair of rearwardly extending rods 102 and 103. The manner of attachment at 100 and 101 does not constitute a limitation on the present invention and may be the same as that described with respect to FIG. 1 and 2. A head band 104 may be identical to that described with respect to FIG. 4 and its adjustable attachment to the rods 102 and 103 may be accomplished by any suitable means including that described with respect to FIGS. 1 and 3.

The yoke 99 is substantially identical to the yoke 1 of FIGS. 1 and 17. The utensil holding mechanism is identical to that of FIG. 17 and like parts have been given like index numerals.

Turning to FIG. 22, it will be noted that the central portion of the yoke 99 has a bore 105 similar to the bore 23 in FIG. 18. A tubular member 106 is located in the bore and is held in place by a conical or wedge-shaped split ring 107 and a cap means 108. The elements 106, 107 and 108 are substantially identical to the elements 7a, 25 and 26 in FIG. 18. An actuating rod 109, having a hooked end 109a is slidably mounted in the tubular member 106. The rod 109 is equivalent to the actuating rod 28b of FIG. 17. The rod 109 passes through a bushing 110, similar to the bushing 33 of FIG. 18.

In the embodiment of FIG. 22, a plate 111 is permanently affixed to the cap 108. The plate 111 bears a hinge 112 to which is affixed a chin plate 113. The upper surface of the chin plate 113 may be provided with a pad or covering 114 of soft material, which pad will be contacted by the operators' s chin (as will be described hereinafter).

The rearwardmost end of the actuating rod 109 has threadedly engaged thereon a cap-like structure 115. A compression spring 116 (equivalent to the spring 34 in FIG. 18) surrounds the actuating rod 109. One end of the compression spring abuts the cap-like member 115. The other end of the compression spring abuts an annular washer 117 which, in turn, abuts the plate 111. Rotation of the cap-like structure will permit adjustment of the action of the spring. The end of the actuating rod is threadedly engaged in a bifurcated element 115a. The chin plate 113 has a downwardly depending extension 118. The bifurcated element 115a and the chin plate extension 118 are joined by a curved link 119 pivotally affixed to both. Finally, a cylindrical stop element 116a is slidably mounted on that portion of the actuating rod 109 between the cap-like member 115 and the bushing 110, for reasons given hereinafter.

The yoke 99 has extending thereabout a band 120. The yoke may also have, threadedly engaged thereon, a nut 121 tending to maintain the band 120 in place. A rod 122 is pivotally attached to the band 120. The rod 122 extends into a tubular member 123 having a foot 124 affixed to its lowermost end by a ball joint 125. The rod 122 has a telescoping fit with the tubular member 123 so that the distance between the yoke 99 and the foot 124 may be adjusted. Once this adjustment is made, the rod 122 may be firmly held in the tubular member 123 by set screw 126.

Turning to FIGS. 20 and 22, it will be understood that when the actuating rod 109 moves between its forwardmost and rearwardmost positions, the utensil 79 will be moved between its food contacting position and its position adjacent the operator's mouth. This action is accomplished in precisely the same manner as described with respect to FIG. 17.

The primary difference between the embodiment of FIG. 17 and that of FIGS. 20 through 23 lies in the manner in which the actuating rod 109 is shifted between its forwardmost and rearwardmost positions. In FIG. 22, the actuating rod 109 is illustrated in its rearwardmost position. This is the position normally maintained by the device, by virtue of the compression spring 116. In the position shown in FIG. 22, it will be understood that the utensil 79 would be adjacent the operator's mouth.

To move the utensil 79 to its food contacting position, it is necessary to move the actuating rod 109 to its forwardmost position. This is accomplished by the operator by causing her chin to contact the pad 114 and causing the chin plate 113 to be depressed. Thus, the chin plate would move in a clockwise manner about the hinge 112. Since the chin plate 113 is operatively connected to the actuating rod 109 via the cap-like member 115, the element 115a, the link 119 and the chin plate extension 118, a downward movement of the chin plate will cause the actuating rod 109 to move forwardly against the action of spring 116. As indicated above, the action of the spring may be regulated by turning the cap-like member 115. The interaction of the cap-like member 115, the bushing 110 and the stop element 116a will determine the forward movement of the actuating rod and prevent over-travel.

From the above description, it will be evident that the operator may eat in the same manner described with respect to the embodiment of FIG. 17, with the exception that the mechanism of the embodiment of FIGS. 20 through 23 is actuated by an up and down motion of the chin, rather than by a forward and rearward motion of the chin. Since the device is braced against the operator's chest by virtue of foot 124, a continuous loop element about the operator's head is not needed, nor are counterweights.

The device of FIGS. 20 through 23 has an advantage over that of FIG. 17 in that the utensil may be locked in its food contacting position, making the process of engaging the food with the utensil easier for the operator. FIG. 23 illustrates the actuating mechanism of FIG. 22 in its locked position wherein the actuating rod 109 is in its forwardmost position. Like parts have been given like index numerals. It will be evident from FIG. 23 that when the chin plate 113 is in its fully depressed position causing the actuating rod 109 to be in its forwardmost position, the link 119 has attained an "over-center" position. Thus, the structure will remain in the position shown in FIG. 23 and constant pressure on the pad 114 by the operator's chin is not necessary during the food pick-up step. A spring 127 is affixed at the pivot point 128 between the chin plate extension 118 and the link 119. One end of the spring engages the chin plate extension, while the other end of the spring engages the link. The spring tends to urge the link back from its "over-center" position. Thus, simple contact of the pad 114 by the chin will cause sufficient deflection of the mechanism to permit spring 127 to return the link 119 from its "over-center" position, causing the chin plate 113 to return to its normal position (as shown in FIG. 22). This, in turn, will cause the actuating rod 109 to move to its rearwardmost position and the eating utensil to move to its position adjacent the operator's mouth. The speed with which the utensil approaches the operator's mouth may be controlled by the operator through the interaction of her chin and the pad 114.

FIGS. 24 through 26 illustrate the combination of the actuator mechanism of FIGS. 20 through 23 and a tubular work holder of the type described with respect to FIGS. 1 and 6. The actuator of FIGS. 24 through 26 is substantially identical to that described with respect to FIGS. 21 through 23, and like parts have been given like index numerals. The actuator of FIGS. 24 through 26 differs from that of FIGS. 21 through 23 in that the chin plate 113 has been provided with upstanding wing elements 113a and 113b. Since the embodiment of FIGS. 24 through 26 is not used for eating purposes, the wings 113a and 113b may be provided to assist in a more precise control of the chin plate 113 by the operator's chin. In addition, the actuating rod 109b is greatly extended in length, as is the tubular member 106a. This is true because in this embodiment the tubular member 106a serves as the tool holder, itself, in the same manner as does the tubular member 7 in FIG. 1. The forwardmost end of the actuating rod 109b is threaded as at 109c in the same manner described with respect to the actuating rod 28 of FIG. 6. It will be understood by one skilled in the art that it would be within the scope of the invention to provide the tubular member 106a with a sheath at its forwardmost end, identical to the sheath 35 in FIG. 6. Under these circumstances, any of the tools illustrated in FIG. 1 and 6 through 8 could be used with the embodiment of FIGS. 24 through 26. There use would be identical to that described with respect to FIG. 1 except that they could not be rotated and they would be actuated by an up and down motion of the chin, rather than a forward and rearward motion of the chin.

For purposes of an exemplary showing, the embodiment of FIGS. 24 through 26 is illustrated in its use as a means to operate a writing instrument, paint brush, scribe or the like. Again it will be understood that the device is affixed to the operator's head in the manner shown and described with respect to FIG. 20 and may be supported by a foot means identical to that shown at 124 in FIGS. 20 and 22.

As is most clearly shown in FIGS. 24 and 25, the forwardmost end of the tubular member 106a is provided with a plate 129. The plate may be permanently or removably affixed to the tubular member 106a. The plate has a pair of spaced, forwardly extending arms, one of which is shown at 130. A cylindrical member 131 is located between the arms and is pivotally affixed thereto. The pivotal connection between the arm 130 and the cylindrical member 131 is illustrated at 132. The cylindrical member 131 has a central bore of such size as to conveniently accept the body of a pen, pencil, paint brush, scribe or the like. For purposes of an exemplary showing, a pencil is illustrated at 133. The pencil is held in position within the cylindrical member 131 by means of a set screw 134.

The cylindrical member 131 has a rearwardly extending flange 135. The forwardmost end of the actuating rod 109b is threaded into a bifurcated member 136. The bifurcations of the member 136 lie on either side of the flange 135 and are pivotally connected thereto as at 137.

From the above description, it will be evident that a forward and rearward movement of the actuating rod 109b will cause a pivotal movement of the pencil 133 about the pivot point 132. This movement can not only be used to adjust the angular relationship of the pencil, but can also be used during the writing or drawing process itself.

In addition, if she chooses the operator may place the chin plate 113 in its locked position (wherein the link 119 is in its "over-center" position). Under these circumstances, the pencil 133 will assume the position shown in FIG. 25. This position is a comfortable writing position. Under these circumstances, writing or drawing is performed by movement of the head.

Modifications may be made in the invention without departing from the spirit of it. For example, the instruments of the present invention are not limited to use with the exemplary tools taught above. The instruments of the present invention may be used to actuate a wide variety of tools. As an example, the embodiments shown in FIGURES 17 and 20 may be used to actuate any device, the operation of which requires its movement from a position remote from the operator to a position adjacent the operator's face or mouth. FIG. 27 illustrates a cigarette holding device which may be used in association with either of the instruments of FIGS. 17 and 20. The cigarette holding device comprises a trough-like element generally indicated at 138 and a handle element generally indicated at 139. The trough-like element 138 has a wall 140 at one end thereof. The other end has a slot 141 at the base thereof. The handle element 139 comprises an elongated member 142 extending substantially parallel to the base of the trough-like element 138. At one end, the elongated member 142 terminates in an upstanding portion 143 having a looped end 144 adapted to lie within the slotted end of the trough-like element 138. At the other end, the elongated portion 142 of the handle element 139 terminates in an upstanding element 145 having a bent over portion 146. The bent over portion 146 may be affixed to the trough-like element 138 by any suitable means 147, such as a screw, a rivet or the like.

FIG. 27 illustrates a cigarette 148 mounted in a conventional cigarette holder 149. In use, the cigarette is adapted to lie in the trough-like element 138 with the portion 150 of the cigarette holder 149 frictionally engaged in the looped element 144. When in position, the body of the cigarette 148 will be held in spaced relationship to the body of the trough-like element 138 so that contact therewith will not put the cigarette out. The trough-like element 138 will retain the cigarette ashes.

It is also within the scope of the invention to provide the portion 150 of the cigarette holder 149 with striations, a covering of frictional material or the like, to render the engagement of the holder by the looped element 144 more positive. When used with the embodiments of either FIG. 17 or FIG. 20, the elongated portion 144 of the handle element of the cigarette holding device will be engaged by the clip means 84 and 85 in the same manner described with respect to the utensil 79. The cigarette holding device will be so oriented that the mouth piece portion of the holder 149 will be in approximately the same position as would be the food retaining portion of the utensil 79. Thus, at will and by simple manipulation of her chin, the operator can bring the cigarette holder 149 to her mouth and draw thereon.

FIG. 28 illustrates a simpler form of cigarette holding device, like parts having been given like index numerals. Again, the cigarette 148, itself, is retained in a conventional cigarette holder 149 The cigarette holding means comprising an elongated member 151, having at one end an upstanding portion 152 terminating in a looped portion 153. The portion 150 of the cigarette holder 149 is retained within the looped portion 153 of the cigarette holding device in the same manner as described with respect to the looped portion 144 in FIG. 27. Again, any suitable means may be applied to the portion 150 of the conventional cigarette holder to render more positive its retention in the looped portion 153.

The cigarette holding device of FIG. 28 may be used by the instruments of FIGS. 17 or 20 in the same manner described with respect to the embodiment shown in FIG. 27. The elongated member 151 will be retained in the clip means 84 and 85, in the manner described with respect to the elongated portion 142 of the embodiment shown in FIG. 27.

Claims

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A device to supplement and take the place of its operator's hands, said device comprising a support means surrounding the operator's head, said support means having a first portion contacting the back of the operator's head and a second portion positioned ahead of the operator's chin, a tool holding means affixed to said second portion of said support means and extending forwardly thereof in a direction away from the operator's chin, a tool supported by said tool holding means, a tool actuating means affixed to said second portion of said support means and extending rearwardly thereof to a position adjacent the operator's chin, means operatively connecting said tool actuating means and said tool, whereby said tool may be manipulated by the operator by movement of his head and the interaction of said actuating means and the operator's chin.

2. The structure claimed in claim 1 wherein said support means comprises a yoke having a central body portion and a pair of laterally and rearwardly extending arms, a loop element extending about the operator's head, the ends of said loop element being affixed to said yoke arms, a head strap element adjustably affixed to said loop element, said head strap element comprising said first portion of said support means and said yoke comprising said second portion of said support means.

3. The structure claimed in claim 1 wherein said support means comprises a yoke having a central body portion and a pair of laterally and rearwardly extending arms, said arms having extensions passing along the sides of the operator's head, a head strap element adjustably affixed to said extensions, said head strap element comprising said first portion of said support means and said yoke comprising said second portion of said support means.

4. The structure claimed in claim 1 wherein said support means comprises a loop element having its end portions crossed and located adjacent each other one above the other, a head strap element adjustably mounted on said loop element, said head strap element comprising said first portion of said support means and said crossed end portions comprising said second portion of said support means.

5. The structure claimed in claim 1 wherein said tool actuating means comprises a member adapted to be contacted by the operator's chin and an actuating rod, the first end of said actuating rod being affixed to said contact member, said actuating rod being slidably mounted in a perforation through said second portion of said support means, said actuating rod-contact member assembly being longitudinally slidable by the operator's chin between a forwardmost position in a direction away from the operator's chin and a rearwardmost position in a direction toward the operator's chin, means for biasing said assembly toward its rearwardmost position, the second end of said actuating rod being operatively connected to said tool, whereby actuation of said assembly by the operator's chin will result in actuation of said tool.

6. The structure claimed in claim 1 wherein said tool actuating means comprises a member adapted to be contacted by the operator's chin and an actuating rod, said contact member being hingedly affixed to said second portion of said support means with a portion of said contact member being located beneath the operator's chin, said contact member being pivotable by the operator's chin about said hinge between an uppermost position and a lowermost position, said actuating rod being slidably mounted in a perforation through said second portion of said support means, said actuating rod being slidable longitudinally between a forwardmost position in a direction away from the operator and a rearward most position in a direction toward the operator, a first end of said actuating rod being operatively connected to said contact member so that said actuating rod is moved to its rearwardmost position when said contact member is moved to its uppermost position and said actuating rod is moved to its forwardmost position when said contact member is moved to its lowermost position, means to bias said contact member to its uppermost position and hence said actuating rod to its rearwardmost position, the second end of said actuating rod being operatively connected to said tool, whereby actuation of said contact member by the operator's chin will result in actuation of said tool.

7. The structure claimed in claim 2 including at least one counterbalance weight removably affixed to said loop element and located behind the operator's head.

8. The structure claimed in claim 2 wherein said tool actuating means comprises a member adapted to be contacted by the operator's chin and an actuating rod, the first end of said actuating rod being affixed to said contact member, said actuating rod being slidably mounted in a perforation through said central body portion of said yoke, said actuating rod-contact member assembly being longitudinally slidable by the operator's chin between a forwardmost position in a direction away from the operator's chin and a rearwardmost position in a direction toward the operator's chin, means for biasing said assembly toward its rearwardmost position, the second end of said actuating rod being operatively connected to said tool whereby actuation of said assembly by the operator's chin will result in actuation of said tool.

9. The structure claimed in claim 2 wherein said tool actuating means comprises a member adapted to be contacted by the operator's chin and an actuating rod, said contact member being hingedly affixed to said central body portion of said yoke with a portion of said contact member being located beneath the operator's chin, said contact member being pivotable by the operator's chin and about said hinge between an uppermost position and a lowermost position, said actuating rod being slidably mounted in a perforation through said second portion of said support means, said actuating rod being slidable longitudinally between a forwardmost position in a direction away from the operator and a rearwardmost position in a direction toward the operator, a first end of said actuating rod being operatively connected to said contact member so that said actuating rod is moved to its rearwardmost position when said contact member is moved to its uppermost position and said actuating rod is moved to its forwardmost position when said contact member is moved to its lowermost position, means to bias said contact member to its uppermost position and hence said actuating rod to its rearwardmost position, the second end of said actuating rod being operatively connected to said tool whereby actuation of said contact member by the operator's chin will result in actuation of said tool.

10. The structure claimed in claim 3 including a downwardly depending adjustable foot affixed to said central body portion of said yoke and positioned to contact the operator's chest.

11. The structure claimed in claim 3 wherein said tool actuating means comprises a member adapted to be contacted by the operator's chin and an actuating rod, the first end of said actuating rod being affixed to said contact member, said actuating rod being slidably mounted in a perforation through said central body portion of said yoke, said actuating rod-contact member assembly being longitudinally slidable by the operator's chin between a forwardmost position in a direction away from the operator's chin and a rearwardmost position in a direction toward the operator's chin, means for biasing said assembly toward its rearwardmost position, the second end of said actuating rod being operatively connected to said tool whereby actuation of said assembly by the operator's chin will result in actuation of said tool.

12. The structure claimed in claim 3 wherein said tool actuating means comprises a member adapted to be contacted by the operator's chin and an actuating rod, said contact member being hingedly affixed to said central body portion of said yoke with a portion of said contact member being located beneath the operator's chin, said contact member being pivotable by the operator's chin and about said hinge between an uppermost position and a lowermost position, said actuating rod being slidably mounted in a perforation through said second portion of said support means, said actuating rod being slidable longitudinally between a forwardmost position in a direction away from the operator and a rearwardmost position in a direction toward the operator, a first end of said actuating rod being operatively connected to said contact member so that said actuating rod is moved to its rearwardmost position when said contact member is moved to its uppermost position and said actuating rod is moved to its forwardmost position when said contact member is moved to its lowermost position, means to bias said contact member to its uppermost position and hence said actuating rod to its rearwardmost position, the second end of said actuating rod being operatively connected to said tool whereby actuation of said contact member by the operator's chin will result in actuation of said tool.

13. The structure claimed in claim 4 wherein said tool holding means comprise extensions on said crossed ends of said loop element, said extensions being directed forwardly of said operator, means on the free ends of said extensions for attaching said tool thereto, said actuating means comprising a member located between said crossed loop element ends and the operator's chin and adapted to be contacted by the operator's chin, at least one link being pivotally connected at its one end to said contact member and at its other end to one of said crossed loop element ends, at least one link being pivotally connected at its one end to said contact member and at its other end to the other of said crossed loop element ends, said contact member being movable by the operator's chin between a forwardmost position in a direction away from the operator's chin and a rearwardmost position in a direction toward the operator's chin, said crossed loop element ends being capable of scissors-like movement so that when said contact member is moved from its rearwardmost position to its forwardmost position said free ends of said extensions will move toward each other and when said contact member moves from its forwardmost position to its rearwardmost position said free ends of said extensions will move away from each other and means to bias said contact member to its rearwardmost position and hence said free ends of said extensions to their spaced position.

14. The structure claimed in claim 5 wherein said actuating rod-contact member assembly is rotatable by the operator's chin about the long axis of said actuating rod whereby said tool may be rotated.

15. The structure claimed in claim 5 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said second portion of said support means, a tool supporting means affixed to the other end of said tube, said actuating rod extending through said tubular tool holder, said tool supporting means comprising a cylindrical member coaxial with said tubular tool holder, said tool having a portion slidably mounted within said cylindrical member, said actuating rod being connected to said tool portion within said cylindrical member, said tool being actuable by reciprocation within said cylindrical member as said actuating rod moves between its forwardmost and rearwardmost positions.

16. The structure claimed in claim 5 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said second portion of said support means, a tool supporting means pivotally attached to the other end of said tube, said actuating rod extending through said tubular tool holder with its forwardmost end pivotally attached to said tool supporting means, whereby a tool in said tool supporting means will be swung toward and away from the operator as said actuating rod is moved between its forwardmost and rearwardmost positions.

17. The structure claimed in claim 5 wherein said tool holding means comprises a first rigid elongated member affixed to and extending forwardly of said second portion of said support means, a second elongated member being pivotally attached intermediate its ends to the forwardmost end of said first elongated member, said second elongated member having a tool at one end and a counterweight at the other end, said second elongated member being swingable between a first position wherein said tool is in a position remote from the operator and a second position wherein said tool is in a position adjacent the operator's mouth, lever means pivotally affixed to said first and second elongated means, said actuating rod being operatively connected to said lever means whereby when said actuating rod is moved to its forwardmost position said second elongated member will be moved by said lever means to its first position and when said actuating rod is moved to its rearwardmost position said second elongated means will be moved by said lever means to its second position.

18. The structure claimed in claim 6 wherein said contact member and said actuating rod are connected by a link, said link having an over center position when said actuating rod is in its forwardmost position whereby said actuating rod may be releasably locked in its forwardmost position.

19. The structure claimed in claim 6 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said second portion of said support means, a tool supporting means affixed to the other end of said tube, said actuating rod extending through said tubular tool holder, said tool supporting means comprising a cylindrical member coaxial with said tubular tool holder, said tool having a portion slidably mounted within said cylindrical member, said actuating rod being connected to said tool portion within said cylindrical member, said tool being actuable by reciprocation within said cylindrical member as said actuating rod moves between its forwardmost and rearwardmost position.

20. The structure claimed in claim 6 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said second portion of said support means, a tool supporting means pivotally attached to the other end of said tube, said actuating rod extending through said tubular tool holder with its forwardmost end pivotally attached to said tool supporting means, whereby a tool in said tool supporting means will be swung toward and away from the operator as said actuating rod is moved between its forwardmost and rearwardmost positions.

21. The structure claimed in claim 6 wherein said tool holding means comprises a first rigid elongated member affixed to and extending forwardly of said second portion of said support means, a second elongated member being pivotally attached intermediate its ends to the forwardmost end of said first elongated member, said second elongated member having a tool at one end and a counterweight at the other end, said second elongated member being swingable between a first position wherein said tool is in a position remote from the operator and a second position wherein said tool is in a position adjacent the operator's mouth, lever means pivotally affixed to said first and second elongated means, said actuating rod being operatively connected to said lever means whereby when said actuating rod is moved to its forwardmost position said second elongated member will be moved by said lever means to its first position and when said actuating rod is moved to its rearwardmost position said second elongated means will be moved by said lever means to its second position.

22. The structure claimed in claim 8 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means affixed to the other end of said tube, said actuating rod extending through said tubular tool holder, said tool supporting means comprising a cylindrical member coaxial with said tubular tool holder, said tool having a portion slidably mounted within said cylindrical member, said actuating rod being connected to said tool portion within said cylindrical member, said tool being actuable by reciprocation within said cylindrical member as said actuating rod moves between its forwardmost and rearwardmost positions.

23. The structure claimed in claim 8 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means pivotally attached to the other end of said tube, said actuating rod extending through said tubular tool holder with its forwardmost end pivotally attached to said tool supporting means, whereby a tool in said tool holding means will be swung toward and away from the operator as said actuating rod is moved between its forwardmost and rearwardmost positions.

24. The structure claimed in claim 8 wherein said tool holding means comprises a first rigid elongated member affixed to and extending forwardly of said yoke, a second elongated member being pivotally attached intermediate its ends to the forwardmost end of said first elongated member, said second elongated member having an eating utensil at one end and a counterweight at the other end, said second elongated member being swingable between a first position wherein said eating utensil is in a food pick-up position remote from the operator and a second position wherein said eating utensil is in a position adjacent the operator's mouth, lever means pivotally affixed to said first and second elongated means, said actuating rod being operatively connected to said lever means whereby when said actuating rod is moved to its forwardmost position said second elongated member will be moved by said lever means to its first position and when said actuating rod is moved to its rearwardmost position said second elongated means will be moved by said lever means to its second position.

25. The structure claimed in claim 9 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means affixed to the other end of said tube, said actuating rod extending through said tubular tool holder, said tool supporting means comprising a cylindrical member coaxial with said tubular tool holder, said tool having a portion slidably mounted within said cylindrical member, said actuating rod being connected to said tool portion within said cylindrical member, said tool being actuable by reciprocation within said cylindrical member as said actuating rod moves between its forwardmost and rearwardmost positions.

26. The structure claimed in claim 9 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means pivotally attached to the other end of said tube, said actuating rod extending through said tubular tool holder with its forwardmost end pivotally attached to said tool supporting means, whereby a tool in said tool holding means will be swung toward and away from the operator as said actuating rod is moved between its forwardmost and rearwardmost positions.

27. The structure claimed in claim 9 wherein said tool holding means comprises a first rigid elongated member affixed to and extending forwardly of said yoke, a second elongated member being pivotally attached intermediate its ends to the forwardmost end of said first elongated member, said second elongated member having an eating utensil at one end and a counterweight at the other end, said second elongated member being swingable between a first position wherein said eating utensil is in a food pick-up position remote from the operator and a second position wherein said eating utensil is in a position adjacent the operator's mouth, lever means pivotally affixed to said first and second elongated means, said actuating rod being operatively connected to said lever means whereby when said actuating rod is moved to its forwardmost position said second elongated member will be moved by said lever means to its first position and when said actuating rod is moved to its rearwardmost position said second elongated means will be moved by said lever means to its second position.

28. The structure claimed in claim 11 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means affixed to the other end of said tube, said actuating rod extending through said tubular tool holder, said tool supporting means comprising a cylindrical member coaxial with said tubular tool holder, said tool having a portion slidably mounted within said cylindrical member, said actuating rod being connected to said tool portion within said cylindrical member, said tool being actuable by reciprocation within said cylindrical member as said actuating rod moves between its forwardmost and rearwardmost positions.

29. The structure claimed in claim 11 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means pivotally attached to the other end of said tube, said actuating rod extending through said tubular tool holder with its forwardmost end pivotally attached to said tool supporting means, whereby a tool in said tool holding means will be swung toward and away from the operator as said actuating rod is moved between its forwardmost and rearwardmost positions.

30. The structure claimed in claim 11 wherein said tool holding means comprises a first rigid elongated member affixed to and extending forwardly of said yoke, a second elongated member being pivotally attached intermediate its ends to the forwardmost end of said first elongated member, said second elongated member having an eating utensil at one end and a counterweight at the other end, said second elongated member being swingable between a first position wherein said eating utensil is in a food pick-up position remote from the operator and a second position wherein said eating utensil is in a position adjacent the operator's mouth, lever means pivotally affixed to said first and second elongated means, said actuating rod being operatively connected to said lever means whereby when said actuating rod is moved to its forwardmost position said second elongated member will be moved by said lever means to its first position and when said actuating rod is moved to its rearwardmost position said second elongated means will be moved by said lever means to its second position.

31. The structure claimed in claim 12 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means affixed to the other end of said tube, said actuating rod extending through said tubular tool holder, said tool supporting means comprising a cylindrical member coaxial with said tubular tool holder, said tool having a portion slidably mounted within said cylindrical member, said actuating rod being connected to said tool portion within said cylindrical member, said tool being actuable by reciprocation within said cylindrical member as said actuating rod moves between its forwardmost and rearwardmost positions.

32. The structure claimed in claim 12 wherein said tool holding means comprises an elongated rigid tube, one end of said tube being affixed to said central body portion of said yoke, a tool supporting means pivotally attached to the other end of said tube, said actuating rod extending through said tubular tool holder with its forwardmost end pivotally attached to said tool supporting means, whereby a tool in said tool holding means will be swung toward and away from the operator as said actuating rod is moved between its forwardmost and rearwardmost positions.

33. The structure claimed in claim 12 wherein said tool holding means comprises a first rigid elongated member affixed to and extending forwardly of said yoke, a second elongated member being pivotally attached intermediate its ends to the forwardmost end of said first elongated member, said second elongated member having an eating utensil at one end and a counterweight at the other end, said second elongated member being swingable between a first position wherein said eating utensil is in a food pick-up position remote from the operator and a second position wherein said eating utensil is in a position adjacent the operator's mouth, lever means pivotally affixed to said first and second elongated means, said actuating rod being operatively connected to said lever means whereby when said actuating rod is moved to its forwardmost position said second elongated member will be moved by said lever means to its first position and when said actuating rod is moved to its rearwardmost position said second elongated means will be moved by said lever means to its second position.

34. The structure claimed in claim 13 wherein said looped element is made of resilient material, said looped element comprising said means to bias said contact member to its rearwardmost position and said free ends of said extension to their spaced position.

35. The structure claimed in claim 13 including a counterbalance weight affixed to said loop element and located behind the operator'a head.

36. The structure claimed in claim 13 wherein said tool is a grasping tool, said tool comprising a pair of elongated rod-like elements, one end of each of said rod-like elements being affixed to said free ends of said extension, the other end of each of said rod-like elements terminating in a grasping surface.

37. The structure claimed in claim 13 wherein said tool comprises a hemostat having a pair of handle portions and a pair of jaws, each of said handle portions having a link pivotally affixed thereto, each of said links being affixed to said free end of one of said tool holding extensions by its respective attaching means whereby when said contact member is moved to said forwardmost position said tool holding extensions will move toward each other and said hemostat jaws will close and when said contact member is moved to said rearwardmost position said tool holding extensions will move away from each other and said hemostat jaws will open.

38. The structure claimed in claim 37 including an additional tool mounted in a tool holding means, said tool holding means having a tubular extension, one of said hemostat jaws being inserted within said tubular extension, the other of said hemostat jaws contacting the exterior of said tubular extension when said jaws are in said closed position.

39. The structure claimed in claim 38 wherein said additional tool is a writing instrument.

40. The structure claimed in claim 38 wherein said additional tool is a cutting blade.

41. The structure claimed in claim 17 wherein said tool comprises a holder for a smoking device.

42. The structure claimed in claim 21 wherein said tool comprises a holder for a smoking device.