U.S. patent number 3,742,940 [Application Number 05/218,314] was granted by the patent office on 1973-07-03 for impact pressure therapy apparatus.
Invention is credited to Roy O. Phiffer.
United States Patent |
3,742,940 |
Phiffer |
July 3, 1973 |
IMPACT PRESSURE THERAPY APPARATUS
Abstract
Exercising apparatus that is especially adapted to impart a
particular desirable motion into the lower limbs of an individual
who may be suffering from paralysis and certain other muscular
injuries or disorders. The apparatus includes a fixed base to which
there is captured a sliding base, with the sliding base having an
oscillating foot rest located thereon. A seat is resiliently
mounted to the fixed base and a control lever is disposed in
proximity of a person seated thereon for controlling the location
of the foot rest relative to the seat. Reciprocatory motion is used
to induce oscillatory motion into the foot rest, while the seat
moves in response thereto so as to impart a particular exercising
motion into the lower limbs of the patient's anatomy. The severity
of the motion induced into the patient's leg is controlled by the
patient himself who avoids straining his impaired muscles by
positioning the lever to thereby control the amount of force
imparted into his body.
Inventors: |
Phiffer; Roy O. (Midland,
TX) |
Family
ID: |
22814607 |
Appl.
No.: |
05/218,314 |
Filed: |
January 17, 1972 |
Current U.S.
Class: |
601/26;
601/31 |
Current CPC
Class: |
A61H
1/0237 (20130101) |
Current International
Class: |
A61H
1/02 (20060101); A61h 001/02 () |
Field of
Search: |
;128/25,25B,48,49 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Trapp; Lawrence W.
Claims
I claim:
1. Exercising apparatus for inducing motion into the lower
extremity of a person's body, comprising:
a fixed base, a seat, a sliding base, and a foot rest;
means by which said sliding base is slidably supported by said
fixed base; means resiliently mounting said seat to said fixed base
in spaced apart relationship with respect to said sliding base;
pivot means for pivotally mounting said foot rest to said sliding
base, and said foot rest being spaced apart with respect to said
seat;
power means for inducing oscillatory motion into said foot rest so
as to pivot said foot rest a limited distance about said pivot
means, and;
means for moving said sliding base relative to said seat and said
fixed base, whereby:
a person can be seated on said seat with one foot rested upon said
foot rest, so as to cause motion to be induced into a lower
extremity of his body.
2. The apparatus of claim 1, wherein said means for inducing
oscillatory motion into said foot rest includes a connecting rod,
means for inducing reciprocatory motion into said rod which
includes a shaft, an eccentric affixed to said shaft, said
connecting rod having one end thereof affixed to said eccentric,
and a motor for rotating said shaft.
3. The apparatus of claim 1, wherein said foot rest includes means
by which it can be moved towards and away from said seat.
4. The apparatus of claim 1, wherein said means for moving said
sliding base includes lever means affixed to said fixed base and
having an end thereof disposed in close proximity of said chair so
that a person seated therein can control the action of the lever,
linkage means, said lever being connected to said sliding base by
said linkage means so that a person seated in said seat can control
the degree of bend to which his knee is subjected.
5. The apparatus of claim 1, wherein said seat is mounted in spaced
apart relationship with respect to said fixed base by a resilient
member, said resilient member enabling said seat to move relative
to said fixed base in response to the oscillatory motion imparted
into said foot rest.
6. The apparatus of claim 1, wherein said means for inducing
oscillatory motion into said foot rest includes a connecting rod,
means for inducing reciprocatory motion into said rod which
includes a shaft, an eccentric affixed to said shaft, said
connecting rod having one end thereof affixed to said eccentric,
and a motor for rotating said shaft; said foot rest includes means
by which it can be moved towards and away from said seat.
7. The apparatus of claim 1, wherein said foot rest includes means
by which it can be moved towards and away from said seat;
said seat is mounted in spaced apart relationship with respect to
said fixed base by a resilient member, said resilient member
enabling said seat to move relative to said fixed base in response
to the reciprocatory motion imparted into said foot rest.
Description
BACKGROUND OF THE INVENTION
Various exercising machines have been proposed in the prior art as
evidenced by the patent to Carl A. Ragon et al., U.S. Pat. No.
3,450,132, issued June 17, 1969. However, the prior art fails to
provide persons with injured muscles, as for example, polio or
accident victims, with an exercising machine which is controlled by
the patient himself so as to provide the maximum manipulative
action the patient can withstand, such an expedient often being
necessary for the rehabilitation of injured muscles. It is desired
that exercising machines for this purpose be specifically
fabricated to induce particular motions in various muscles of the
victim wherein each important portion of the lower limb of the
victim, especially the knee, can be exercised in a particular
manner, the severity of which is determined by the patient
himself.
SUMMARY OF THE INVENTION
This invention is related to an exercising apparatus for inducing
motion into the lower extremity of a person's body, and
particularly to the lower limbs, such as the knee or hip joints.
The apparatus is comprised of a fixed base to which there is
resiliently affixed a seat which can move in response to motion
being induced into the leg of the patient. The patient's foot is
received by an oscillating foot rest, with the foot rest being
pivotally mounted upon a sliding base. A means for producing
reciprocatory motion is connected to and imparts motion into the
foot rest.
The sliding base can be moved towards and away from the chair by
the patient himself, so that he can control the amount of bend
induced into his ankle, hip, or knee, thereby enabling the patient
to govern the severity of exercise which is induced into his
body.
Accordingly, it is an object of this invention to provide a motor
driven therapeutic apparatus that includes means for providing
exercise to the leg, thigh, hips, and especially the knee.
Another object of the invention is to provide a therapeutic
exercise machine which can be readily adjusted to meet the specific
physical requirements of any particular patient.
A further object of this invention is to disclose and provide a
therapeutic machine that imparts a predetermined amount of force
into either lower limb and at the same time provides means by which
one limb can be spread apart with respect to the other a
predetermined amount to thereby influence the particular exercise
imparted into the hip muscles as well as the pelvic region.
A still further object of this invention is to provide an
exercising apparatus having adjustable means associated therewith
for lengthening or shortening the device to accommodate either
adults or children.
Another and still further object of this invention is to provide
exercising apparatus for inducing motion into the lower extremity
of a person's body, as for example, the knee, in a manner which
avoids exceeding the patient's capacity for movement of the
particular limb being manipulated.
These and various other objects and advantages of the invention
will become readily apparent to those skilled in the art upon
reading the following detailed description and claims and by
referring to the accompanying drawings.
The above objects are attained in accordance with the present
invention by the provision of a combination of elements which are
fabricated in a manner substantially as described in the above
abstract and summary.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side elevational view of the preferred embodiment of
the invention;
FIG. 2 is a top plan view of the apparatus disclosed in FIG. 1,
with some parts thereof being broken away and other parts being
removed so as to better disclose the invention;
FIG. 3 is an enlarged, fragmentary, part cross-sectional
representation of part of the apparatus seen in the foregoing
figures;
FIG. 4 is a fragmentary representation of part of the apparatus
seen in the foregoing figures;
FIG. 5 is an enlarged, part cross-sectional view of part of the
apparatus seen in FIGS. 1 and 2;
FIG. 6 is an enlarged, fragmentary, part cross-sectional
representation of part of the apparatus seen in FIGS. 1 and 2;
and
FIG. 7 is an enlarged, part cross-sectional, fragmentary
presentation of a modification of part of the apparatus disclosed
in the foregoing figures.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIGS. 1 and 2, the numeral 10 broadly indicates an exercising
apparatus for inducing motion into the lower extremity of a
person's body. The apparatus includes a chair 11 comprised of a
seat 12 which supports the major portion of the weight of the
patient who may be seated therein. Footrest 13 is forwardly
disposed of the seat where it is pivotally moved in the directions
indicated by the arrows at numeral 14. A journal 15, located at the
lower extremity of the footrest, maintains the footrest properly
aligned with the remainder of the apparatus. Lever 16 upwardly
depends into close proximity of the chair.
A longitudinally extending fixed base 17 is comprised of a first
portion 18 which is affixed to a second portion 19 by means of
spaced apart hinges 20. A sliding base 21 is slidably captured in
supporting relationship upon the fixed base and is movable
longitudinally thereof. The base includes four spaced apart
vertical members 22 which upwardly depend from the horizontal
member 21, with opposed pairs of members being interconnected by
spaced apart horizontal side members 23.
A 1/4-horsepower motor 24 is bolted to the horizontal side members
and provided with a composition V-belt 25 so that the motor can
drive pulley 26, which in turn drives shaft 27. The shaft is held
in journaled relationship with respect to horizontal members 23,
and is rigidly affixed to an eccentric member 28. Housing 29
receives the eccentric member in journaled relationship therewithin
and forms one end of connecting rod 30. Hence, rotation of the
shaft imparts reciprocatory motion into the rod.
The opposed end of the connecting rod is journaled to the upper
marginal free end of the foot rest by journal means 31. The foot
rest includes an inclined portion 32 for receiving one's foot
thereon, while a vertical member 33 is affixed to the before
mentioned journal 15.
Four spaced apart bolts such as indicated at 34 and 35 maintain the
movable base superimposed upon and captured to the fixed base. Each
bolt is received through a longitudinally extending slot 36 which
admits for the before mentioned movement between the fixed and
movable bases.
Spaced apart springs 37 have the depending ends thereof received
within the illustrated apertures formed within members 38 and 39 so
as to present a biasing force which urges one member towards the
other.
Upstanding spaced apart ears 40 are rigidly affixed to the opposed
sides of member 21 of the slidable base and each form a journal for
receiving one depending end of a drag link 41 which is attached
thereto. The opposed end of the drag link is journaled at 42 to
linkage 43, which in turn is affixed to a lateral control rod 44.
Rod 44 has the marginal end portions thereof journaled to opposed
frame members, with levers 16 being rigidly affixed to an end
portion of the rod. Plate 46 has the outer diameter thereof
provided with serrations or teeth which engagingly cooperate with a
movable member 47 in the manner of a rack and pawl so as to
releasably position the lever 16 at a number of different
positions.
Plate 49 is adjustably captured by lateral plate 50. The lateral
plate extends from and is attached to opposed side members of the
movable base. Slots 51, 52 receive bolts 53 therethrough with the
bolts being affixed to a lower plate member 54. A depending
marginal edge portion of the plate is turned vertically downward at
55 and threadedly receives the threaded portion 56 of a crank
member therethrough. Journal means 57 receives a polished portion
58 of the crank therein, with the end of the crank terminating in
the form of a handle 59. Member 60 is affixed to member 61 so as to
secure shaft 58 against longitudinal movement.
The foot rest portion 62 is adjustably attached to portion 63 by
means of the spaced apart holes and bolts. Lowermost portion 64 of
the foot rest receives a shaft therethrough in the illustrated
manner of FIG. 3.
Four spaced apart bolts 65 secure the lower extremity of the chair
to the fixed base by means of four spaced apart holes drilled
through the lowermost portion 66 of the chair. The bolts 65 extend
through the spaced apart resilient leg 66 and through an aperture
67 formed in the fixed base. Spaced apart vertical resilient leg 69
is bent into the horizontal position where it travels rearwardly of
the back 71 of the chair, with the rearward most portion 72 being
affixed to the back of the chair. Hence, a single length of tubular
spring steel can form the chair frame.
FIG. 7 illustrates a modification of the connecting rod 30 seen in
the foregoing figures. The rod is eccentrically journaled at 29 as
in the manner of FIG. 5, with portion 130 of the rod being provided
with a threaded marginal end 174 which terminates at 175. Portion
130' of the rod is provided with a journal for enabling it to be
connected to the foot rest at 31. A marginal threaded end 176
terminates at 177. Internally threaded coupling member 180 engages
the marginal threaded end of the rod members so as to enable the
distance between the shaft 27 and the journal 31 to be changed by
merely rotating the coupling member in the desired direction.
In operation, the patient is seated within the chair 12 with either
foot placed upon the foot rest 13. The chair is moved towards or
away from the foot rest by relocating the four spaced apart bolts
65 as may be necessary. The height of the foot rest is adjusted by
relocating the bolts 63. The angle of the foot rest relative to the
base may be changed by adjustment means 180. The heel portion of
the foot rest can likewise be moved towards and away from the chair
by cranking handle 59 in the proper direction. Lever 16 is moved in
a forward direction by disengaging the rack and pawl. The electric
motor 24 is energized, thereby driving pulley 26 which in turn
rotates the eccentric 28 by means of shaft 27. The eccentric
imparts reciprocal motion into the depending end of shaft 30 which
in turn pivots the foot rest in a limited arc about journal 15 as
indicated by the arrows at numeral 14. As the foot rest pivotally
oscillates towards and away from the patient, the patient can move
handle 16 towards him and against the biasing action of the springs
37.
The motion of the foot rest will manipulate the patient's ankle,
leg muscles, knee, thigh muscles, and hip joints. As the patient's
leg is moved towards and away from the chair, the resiliently
mounted chair will move towards and away from the dashed line
position indicated by numeral 11'. This important feature of the
invention augments the therapeutic action of the foot rest in that
the body of the patient is slightly changing position during each
cycle of the foot rest. Moreover, the resilient legs of the chair
have a dampening effect upon the action of the foot rest and
thereby precludes imparting an excessive force which might
otherwise damage the patient's limbs.
The patient can selectively increase the amount of bend in his knee
as the limb is being flexed by the foot rest by merely increasing
the pressure on lever 16. Several treatments may be required before
the patient can move the lever towards himself any significant
amount. Repeated treatment with the machine will enable the knee to
be continuously and progressively bent an increasing amount, which
signifies that the patient is favorably responding to the
treatment.
The chair frame preferably is fabricated from a single piece of
tubular structural steel approximately 5/8ths inch in diameter with
the ends of the tubing being joined at 72. Where deemed desirable,
the frame can be made of two spaced apart flat pieces of structural
steel having a cross-sectional configuration of 1 inch by 1/4 inch.
It is important that the spaced apart legs of the member between
attachment points 70 and bolts 65 be sufficiently resilient so that
a definite movement of the chair can be visually observed during
the treatment.
It is important to realize that the patient himself selectively
imposes several different forces upon his leg. One force is the
pressure he places on his leg by pushing against the foot rest.
Another force is the pressure which results from thrusting the
pelvic region forward while using the small of the back to provide
a force against the chair. The patient can spread his legs apart so
as to attain various motion variation in his hips. The manipulation
of the lever controls the magnitude of force imparted into the limb
as well as the angle of bend of the knee.
Since the patient himself is in complete control of the magnitude
of the exercise he is receiving, he soon loses fear of pain
associated with some muscular disorders, and this expedient enables
him to rapidly increase the force to which he subjects his
limb.
The present invention stimulates blood circulation and is
beneficial for general physical therapy as well as for exercising
muscles to their extreme limit of travel.
* * * * *