U.S. patent number 3,762,402 [Application Number 05/199,417] was granted by the patent office on 1973-10-02 for foot massaging machine.
Invention is credited to Stanley Abramovitz.
United States Patent |
3,762,402 |
Abramovitz |
October 2, 1973 |
FOOT MASSAGING MACHINE
Abstract
A motor hangs from a platform and extends downwardly towards a
base which is connected to the platform by means of oscillatable
supports. The motor rotates an eccentric mass so as to cause the
platform to vibrate, a portion of the eccentric mass being disposed
laterally of the motor and between the ends thereof.
Inventors: |
Abramovitz; Stanley (New York,
NY) |
Family
ID: |
22737397 |
Appl.
No.: |
05/199,417 |
Filed: |
November 17, 1971 |
Current U.S.
Class: |
601/65; 601/49;
601/70; 5/109 |
Current CPC
Class: |
A61H
23/0263 (20130101); A61H 2205/12 (20130101) |
Current International
Class: |
A61H
23/02 (20060101); A61h 001/00 () |
Field of
Search: |
;128/25B,32-36 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Trapp; Lawrence W.
Claims
I claim:
1. In a vibratory massaging machine, the combination
comprising:
a. a base;
b. supporting means provided on said base;
c. laterally oscillatable means surmounting said supporting
means;
d. driving means depending from said platform and extending
downwardly from said base;
e. an eccentric mass driven by said driving means;
f. a portion of said eccentric mass extending upwardly towards said
platform from the region at the bottom of said driving means;
g. the said supporting means provided on said base including a
plurality of bosses formed integrally with said base and having a
plurality of sockets;
h. the said platform including a plurality of bosses formed
integrally with said platform and having a plurality of
sockets;
i. the said laterally oscillatable means including upright columns
accommodated within the sockets in said base and platform;
j. said upright columns being equidistant from the center of said
platform and disposed at equal angular intervals thereabout;
k. said columns being composed of a rigid material;
l. the ends of said columns being formed with curved recesses;
m. rounded members depending from said platform and slidably
engaged with said curved recesses;
n. an elastic sleeve disposed between the ends of said columns and
said platform, and engaged with said columns.
2. In a vibratory massaging machine, the combination
comprising:
a. a base;
b. supporting means provided on said base;
c. laterally oscillatable means surmounting said supporting
means;
d. driving means depending from said platform and extending
downwardly towards said base;
e. an eccentric mass driven by said driving means;
f. a portion of said eccentric mass extending upwardly towards said
platform from the region at the bottom of said driving means;
g. said base including a horizontal portion and a side wall;
h. said platform including a horizontal portion and a flange
aligned with said side wall;
i. said flange and side wall being in spaced relation with respect
to each other and being provided with a resilient gasket affixed to
said flange and side wall.
3. In a vibratory massaging machine, the combination
comprising:
a. a base;
b. supporting means provided on said base;
c. laterally oscillatable means surmounting said supporting
means;
d. driving means depending from said platform and extending
downwardly towards said base;
e. an eccentric mass driven by said driving means;
f. a portion of said eccentric mass extending upwardly towards said
platform from the region at the bottom of said driving means;
g. said base including a horizontal portion and a side wall;
h. said platform including a horizontal portion and a flange
aligned with said side wall;
i. said flange and side wall being in spaced relation with respect
to each other and being provided with opposing grooves;
j. a resilient gasket being accommodated within said opposing
grooves.
4. In a vibratory massaging machine, the combination
comprising:
a. a base;
b. supporting means provided on said base;
c. laterally oscillatable means surmounting said supporting
means;
d. driving means depending from said platform and extending
downwardly towards said base;
e. an eccentric mass driven by said driving means;
f. a portion of said eccentric mass extending upwardly towards said
platform from the region at the bottom of said driving means;
g. said base being provided with a plurality of legs disposable
upon a supporting surface;
h. each of said legs including a central core and a sleeve
surrounding said central core;
i. said central core being composed of a rigid material;
j. said sleeve being composed of a soft, resilient material;
k. said central core being normally retracted within said
sleeve;
l. said sleeve being compressible by the weight of said machine
against said surface, whereby said central core is brought into
abutment with said surface.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to vibratory devices and is more
particularly concerned with a vibratory foot massaging machine.
2. Description of the Prior Art
Heretofore, vibratory foot massaging machines have employed a
variety of intricate and cumbersome mechanisms which have required
such machines to be of substantial bulk and height, as a
consequence of which they have had a number of disadvantages. The
height of such machines has necessarily resulted in the user
thereof being positioned at a comparatively great height from the
floor or other surface upon which the machines are disposed,
thereby exposing him to the risk of injury in the event of a fall
during operation of the machine.
Again, the vibration of the platforms of such machines tends to
create moments of force with respect to the surface upon which the
machines are mounted whereby, depending upon the height of the
machines, they may become unstable or may make it difficult for the
user to retain his position thereon. Moreover, the range of weight
which conventional machines may accommodate is often quite limited
so that when users thereof are of excessive weight, the machines
may become inoperative or may operate inadequately or
inefficiently.
Beyond this, the mechanisms employed in conventional machines of
the foregoing kind often employ numerous parts and are
correspondingly expensive and difficult to build and maintain.
The present invention solves these problems.
Thus, it is an object of the present invention to provide an
improved vibratory foot massaging machine which is of minimal
height and which imparts a strong vibratory effect.
Another object of the invention is to provide a machine of this
kind which is of simple, inexpensive design, employs a minimum of
parts and is easily maintained.
Another object of the present invention is to provide a vibratory
foot massaging machine which can accommodate users having a great
variation in weight.
Still another object of the invention is to provide a machine of
the foregoing kind which is compact, easily portable and readily
stored.
Other objects and advantages of the invention will be understood
from the following discussion when read in conjunction with the
accompanying drawing.
SUMMARY OF THE INVENTION
The present invention comprises a vibratory platform supporting a
motor, the shaft of which is provided with an eccentric, rotatable
mass. The motor is positioned between the vibratory platform and a
base member, the said motor hanging downwardly from the platform;
and said rotatable mass is mainly disposed laterally of the motor
and extends upwardly towards the platform -- thereby permitting
minimal space between the platform and the base member.
The platform is supported by oscillatable means, utilizing rubber
or other elastomeric members to permit vibration of the platform
when the motor is actuated so as to turn the said eccentric mass.
In addition, cold flow of said oscillatable means may be obstructed
so as to limit downward movement of the platform, thereby
permitting it to accommodate users of very heavy weight as well as
users of lighter weight.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
FIG. 1 is a cross-sectional, elevational view of one embodiment of
the invention;
FIG. 2 is a view taken about the line 2--2 of FIG. 1;
FIG. 3 is an enlarged plan view of the eccentric mass employed in
the foregoing embodiment of the invention;
FIG. 4 is a view taken about the line 4--4 of FIG. 3;
FIGS. 5 and 6 are cross-sectional, elevational views similar to
that of FIG. 1 but showing modified forms of the invention;
FIG. 7 through 13 are fragmentary views of modified forms of
oscillatable supports which may be employed in the invention;
FIG. 14 is an enlarged view of a supporting leg employed upon the
base of the invention.
Throughout the several views, similar numerals are employed to
refer to similar parts of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown in FIGS. 1 and 2 of the accompanying drawing, one
embodiment of the present invention comprises a horizontal base,
generally designated by the numeral 20 and provided with an upright
side wall 21. The base 20 is also provided with a plurality of
bosses adapted to accommodate upright, laterally oscillatable means
which may comprise upright columns 23 composed of a resilient
rubber or other elastomeric substance, each of said columns 23
being received within a suitable socket 24 formed in each of the
bosses 22.
The upright columns 23 are preferably disposed equidistant from the
center of the base 20 and are located at equal angular intervals
about the center of the base 20.
Bosses 25 are also disposed upon the bottom of a platform generally
designated by the numeral 26, each of said bosses 25 being provided
with a socket 28 similar to the previously mentioned socket 24 and
surmounting each of the upright columns 23, thereby accomplishing
the support of the platform 26.
Here again, it will be noted that the columns 23 are preferably
disposed equidistant from the center of the platform 26 and are
located at equal angular intervals about the center of the platform
26.
A suitable rubber pad 29 or other slip-preventing means may be
affixed to the top of the platform 26 as desired.
The bottom of the platform 26 is also provided with a centrally
located ring 30 formed integrally with the platform 26 and
accommodating driving means, such as a motor 31 depending from the
platform 26, as by suitable fasteners (not shown), and having a
downwardly projecting shaft 32. The shaft 32 is disposed coaxially
of the centers of the base 20 and platform 26. The bottom of the
shaft 32 is in spaced relation with respect to the base 20.
An eccentric mass, generally designated by the numeral 33 is
accommodated upon the shaft 32 and is shown in FIGS. 3 and 4, which
depict enlarged views thereof. This eccentric mass 33 includes a
flat plate 34 having divergent sides 35, 36, an aperture 38 adapted
to receive the aforesaid shaft 32 and means for fastening said
plate 34 to said shaft 32, such as the socket screw 39 depicted in
FIG. 4. The aperture 38 is located in the vicinity of one end of
the plate 34. At the opposing end thereof, there is provided a
curved upright member 40 having the conformation of a circular
arc.
As may be seen in FIGS. 1 and 2, the plate 34 is mounted upon the
shaft 32, extends laterally of the motor 31, and the upright member
40 extends upwardly toward the platform 26, the bulk of said
upright member 40 being disposed laterally of the motor 31 and in a
region between the level of the bottom of the motor 31 and the
platform 26. The plate 34 may be made as thin as desired and the
upright member 40 may be made as thick and as heavy as desired,
thereby concentrating the bulk of the eccentric mass 33 laterally
of the motor 31.
The platform 26 is also provided with a downwardly extending flange
41 which is aligned with and in spaced relation with respect to the
side wall 21, thereby defining an aperture 42 therebetween, which
said aperture 42 permits the circulation of air for cooling
purposes. If desired, a suitable mesh 43 may be mounted upon the
internal surfaces 44, 45 of the flange 41 and side wall 21, so as
to occupy the said aperture 42 while at the same time permitting
air to circulate therethrough.
The motor 31 may be controlled by a two speed switch, shown
diagrammatically and designated generally by the numeral 27 in FIG.
1 and connected to a suitable source of power (not shown), it being
understood that other multi-speed or variable speed switches may be
employed if desired.
With the foregoing arrangement, it will be seen that upon actuation
of the motor 31, the eccentric mass 33 will be rotated so as to
cause the upright columns 23 to oscillate laterally, thereby
permitting the platform 26 to undergo a corresponding oscillation
or vibration. In this way the platform 26 is available for
communicating such vibration to any desired part or parts of the
body of the user, such as his feet, legs, arms, torso and the like,
which may be brought into contact with the platform 26 as
desired.
In conventional vibratory machines, the vibration is frequently
vertical or extends in only two opposing, horizontal directions so
that any massage thereby communicated to the user is corresponding
limited. However, in the present invention, the foregoing
oscillation or vibration is not only horizontal but is also
rotational, the said oscillation or vibration being directed
radially of the center of the platform and at angular intervals
extending throughout 360 degrees around the center of the platform
26. Moreover, if desired, the machine may be disposed at any
desired inclination with respect to the horizontal so as to
communicate a massage in said inclined direction.
An important feature of the invention resides in the fact that the
principal limitation upon the distance between the platform 26 and
the base 20 is the depth of the motor 31. As is well known, such
depth may be comparatively shallow, there being, for example,
so-called "pancake" motors which are commercially available and
which are quite thin. Consequently, the height of the platform 26
from any surface 47 upon which the base 20 is disposed, is
correspondingly small so as to require very little effort on the
part of the user to mount the platform 26. So, also, the stability
of said platform 26 and the ease with which the user may maintain
his position thereon is correspondingly increased. Moreover, a very
large vibratory force may be generated by the rotation of the
eccentric mass 33 in the confined space between the base 20 and the
platform 26, and hence, it will be seen that such vibratory force
is available in a very compact machine.
It will also be noted that when the weight of the user is imposed
upon the platform 26, its vibration will not result in any
significant tendency of the entire machine to "crawl" or move
horizontally upon any surface 47 on which it rests. However, the
vibration will urge the machine more effectively to move about such
a surface 47 when the weight of the user is not imposed upon the
platform 26.
To avoid such movement, a plurality of legs, generally designated
by the numeral 46, depend from the base 20 and rest upon said
surface 47. As shown in FIG. 14, which depicts an enlarged
cross-sectional view of one of the legs 46, it includes a central
core 48 composed or a rigid substance having a high spring
constant, such as hard rubber, said core 48 being affixed to the
base 20 by suitable fastening means such as a screw 48a, the core
48 being retracted from the surface 47 when the weight of the
machine is not disposed thereon. A yieldable, resilient sleeve 49,
composed of a material having a low spring constant, such as soft
rubber, is engaged with said core 48 and rests upon the surface 47.
With this arrangement, the weight of the above described machine is
sufficient to depress the core 48 into contact with the surface 47
so as to permit said core 48 to support said weight effectively. At
the same time, the sleeve 49 is compressed between the base 20 and
the surface 47, and any vibration of the platform 26 which may be
communicated to the base 20 will tend to be absorbed by the sleeve
49 as well as the core 48 so as to inhibit movement of the base 20
and consequently, of the entire machine, about the surface 47.
Modified forms of the invention are depicted in FIGS. 5 and 6. As
may be seen in FIG. 5, the platform 50 is horizontal and is not
provided with any flange; and the base 51 is provided with upright
side walls 52 which are in spaced relation with respect to the
platform 50, thereby forming an aperture 53 for air circulation
purposes.
As may be seen in FIG. 6, the base 60 is horizontal and is not
provided with any side walls; and the platform 61 is provided with
a flange 67 extending downwardly towards the base 60 but being in
spaced relation with respect thereto so as to form an aperture 63
for air circulation purposes. Additional apertures 64 may be
provided in the flange 67 as desired.
In the forms of the invention depicted in FIGS. 5 and 6, a modified
form of laterally oscillatable means may be employed. Thus, as
shown in FIG. 7, said laterally oscillatable means may comprise a
column 64 composed of a metallic or other rigid material and
provided with a shoulder 65 and extension 66 having a diameter
smaller than that of the column 64. The extension 66 is
accommodated within a cup 68 composed of a yieldable rubber or
other elastomeric material, which said cup 68 is disposed within
the socket 28 formed in the same manner as in the previously
described form of the invention depicted in FIGS. 1 and 2. At the
lower portion of the column 64, there is also provided an extension
69 (as depicted in FIGS. 5 and 6) similar to the extension 66 and
similarly accommodated within a cup 70 similar to the cup 68 and
disposed in boss 22.
It will be seen that when the motor 31 and eccentric mass 33 are
actuated, the columns 64 are induced to oscillate laterally and to
permit the platforms 50, 61 to undergo a corresponding oscillation
or vibration, the yieldable cups 68, 70 permitting the oscillatory
movement of the columns 64.
It will also be observed that when the platforms 50, 61 are
depressed by a weight imposed thereon, the elastomeric material of
the cup 68 will be squeezed so as to tend to flow out of the socket
28, thereby permitting the bosses 25 of the platforms 50, 61 to be
urged into contact with the columns 64 so as to interfere with the
vibratory movement of said platforms 50,61. To avoid this, the said
flow of the elastomeric material of the cup 68 is abuttable with
the shoulder 65, thereby maintaining the column 64 in spaced
relation with respect to each boss 25. Hence, even though a very
obese user imposes his entire weight upon the platforms 50, 61, an
efficient vibratory movement of said platforms 50, 61 may still be
accomplished.
FIG. 8 depicts a modified arrangement of parts which may be
employed in lieu of other laterally oscillatable means previously
described. In FIG. 8, the column 70 is composed of a metallic or
other rigid material and is provided with a curved recess 71 formed
in the upper end 72 of the column 70. Said curved recess 71
slidably accommodates a rounded head 73 in spaced relation with the
platform 61 but connected thereto by a neck 74. Said neck 74
extends through an aperture 75 in a yieldable rubber sleeve
generally designated by the numeral 76 and having an expanded
portion 78 near its upper end and a portion 79 of reduced diameter
near its lower end, which said portion 79 embraces the column 70.
Here again, the column 70 is susceptible of lateral oscillation
while at the same time permitting the platform 61 to undergo a
corresponding oscillation or vibration.
Other laterally oscillatable supporting means may also be employed
in lieu of those previously described. The above described columns
and sockets may be dispensed with entirely and in their place,
portions of the platform and base may be employed as supporting
means separated by suitable oscillatory joints. Thus, as shown in
FIG. 9, the side wall 80 similar to the above mentioned side wall
21 is aligned with flange 81 similar to the above mentioned flange
41. In this arrangement, however, a yieldable gasket 82 is affixed
by a suitable adhesive 83 to the side wall 80 and flange 81,
thereby permitting lateral oscillation of the flange 81 with
respect to the side wall 80, which also provides support for said
flange 81.
As alternatives to the arrangement depicted in FIG. 9, a yieldable,
solid gasket 84 or a yieldable, tubular gasket 85, as shown in
FIGS. 10 and 11, or a gasket 86 of elongated cross-section, as
shown in FIG. 13 may be employed. The solid gasket 84 or tubular
gasket 85 may be disposed in opposing planar grooves 88, 89 formed
in the flange 90 and side wall 91; and the gasket 86 may be
disposed in the opposing curved grooves 92, 93 formed in the flange
94 and side wall 95, the said gasket 86 including, in
cross-section, opposing rounded ends 96 and an intermediate
connecting web 98. If desired, these alternatives may also include
a snap-on arrangement which prevents accidental disassembly of the
various parts of the invention. Thus, as shown in FIG. 12, the
solid gasket 84 is disposed in opposing planar grooves 88, 89
formed in flange 100 and side wall 101. A curved, overhanging lip
102 depends from the flange 100 and is snappably engageable with an
enlarged bead or ridge 103 formed on the side wall 101, thereby
permitting easy engagement of said flange 100 and side wall 101 and
obstructing disengagement thereof.
It is to be understood that the flanges and side walls depicted in
FIGS. 9 through 13 are intended as alternatives to the previously
described flanges and side walls forming parts of the above
mentioned platform and base, and that in the case of the forms of
the invention employing the arrangements shown in FIGS. 9 through
13, the yieldable gaskets 82, 84, 85, 86 are laterally oscillatable
so as to permit oscillation or vibration of the platform in a
manner similar to that described in connection with the forms of
the invention shown in FIGS. 1, 2, 5 and 6.
* * * * *