U.S. patent number 3,778,052 [Application Number 05/153,949] was granted by the patent office on 1973-12-11 for walker with adjustable crutch head supports.
Invention is credited to Paul Andow, Raul G. Diaz, David Guillen.
United States Patent |
3,778,052 |
Andow , et al. |
December 11, 1973 |
WALKER WITH ADJUSTABLE CRUTCH HEAD SUPPORTS
Abstract
A wheeled support structure defining an open framework enclosure
open on one side for egress thereinto and exit therefrom. The
enclosure includes an adjustable height crotch sling and belt
assembly for application to a handicapped person or a convalescent
patient, opposite side rails defining handrails which may be
gripped by the person using the walker and also vertically and
transversely adjustable crutch heads for positioning beneath the
base ends of the arms of a person using the walker.
Inventors: |
Andow; Paul (El Paso, TX),
Guillen; David (El Paso, TX), Diaz; Raul G. (El Paso,
TX) |
Family
ID: |
22549381 |
Appl.
No.: |
05/153,949 |
Filed: |
June 17, 1971 |
Current U.S.
Class: |
280/87.041;
D12/130; 135/67; 297/5; 482/69; 280/87.021; 482/67 |
Current CPC
Class: |
A61H
3/04 (20130101); A61H 3/008 (20130101); A61H
2201/1628 (20130101); A61H 2201/0192 (20130101); A61H
2201/1635 (20130101); A61H 2201/165 (20130101); A61H
2201/163 (20130101) |
Current International
Class: |
A61H
3/00 (20060101); A61h 003/04 () |
Field of
Search: |
;272/70.3,70.4 ;297/5,6
;135/45A |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Stouffer; Richard T.
Claims
What is claimed as new is as follows:
1. A walker for assisting persons to walk, said walker comprising
an upstanding frame including front and rear pairs of opposite side
upright corner members, longitudinal frame members secured between
and interconnecting corresponding front and rear corner members
intermediate their upper and lower ends and transverse frame
members secured between and interconnecting at least the rear
corner members intermediate the upper and lower ends of said rear
corner members, said frame including an upper frame portion
supported from the upper end portions of said corner members, said
frame including opposite side crutch head support members disposed
inwardly of upstanding planes containing corresponding corner
members of said frame with crutch head members supported from said
crutch head support members, said frame including means operatively
supporting said crutch head support members for independent
vertical shifting relative to said frame as well as independent
horizontal shifting transversely of said frame, said means for
supporting said crutch head support members for vertical and
transverse shifting including a pair of upstanding support bars
spaced transversely of said frame inwardly of said rear corner
members, said support bars being supported from said frame for
independent transverse shifting relative to said frame, a pair of
front-to-rear extending generally horizontal support arms having
their rear ends slidably mounted on said support bars, said support
arms and bars including coacting means operable to releasably
retain said support arms in adjusted vertically shifted position,
said crutch heads being mounted on the forward end portions of said
support arms for adjustable shifting therealong, said support arms
comprising said crutch head support members.
2. The combination of claim 1 wherein the lower ends of said
upright corner members are provided with ground-engaging support
wheels.
3. A walker for assisting persons to walk, said walker comprising
an upstanding frame including front and rear pairs of opposite side
upright corner members, longitudinal frame members secured between
and interconnecting corresponding front and rear corner members
intermediate their upper and lower ends and transverse frame
members secured between and interconnecting at least the rear
corner members intermediate the upper and lower ends of said rear
corner members, said frame including an upper frame portion
interconnecting the upper end portions of said corner members, said
frame including opposite side crutch head support members supported
therefrom inwardly of upstanding planes containing corresponding
corner members of said frame with crutch head members supported
from said crutch head support members forward of the rear corner
members of said frame, said frame including means operatively
supporting said crutch head support members for independent
vertical shifting relative to said frame as well as independent
horizontal shifting transversely of said frame, said upper frame
portion including front and rear pairs of opposite side upper
anchor portions, four downwardly convergent suspension strap
members having their upper ends secured to said anchor portions, an
adjustable length safety belt for encircling the waist of a person
utilizing the walker, said adjustable length safety belt being
supported from the lower ends of said strap members, said means for
supporting said crutch head support members for vertical and
transverse shifting including a pair of upstanding support bars
spaced transversely of said frame inwardly of said rear corner
members, said support bars being supported from said frame for
independent transverse shifting relative to said frame, a pair of
front-to-rear extending generally horizontal support arms having
their rear ends rotatably and slidably mounted on said support
bars, said support arms and bars including coacting means operable
to releasably retain said support arms in adjusted rotated and
vertically shifted positions, said crutch heads being mounted on
the forward end portions of said support arms for adjustable
shifting therealong, said support arms comprising said crutch head
support members.
4. The combination of claim 3 including an elongated crotch
cradling panel constructed of flexible material and draped in
upwardly opening generally U-shaped configuration, the upper
opposite ends of said panel being removably anchored to
diametrically opposite portions of said belt.
Description
The walker of the instant invention has been primarily designed to
provide a support structure for the physically handicapped or
convalescent patients and which may be utilized as an assist to
enable the handicapped or convalescent patients unable to walk
unattended to have independent freedom of movement and a means for
accomplishing walking exercises with assurance against falling.
The walker includes three different structural assemblages thereof
for the support, either partial or substantially total, of the
person using the walker. Opposite side hand-grips are provided for
use by persons needing only little assistance to walk, under the
arm engaging crutch heads are provided to provide further
assistance in walking if such further assistance is required and a
suspended combined safety belt and crotch sling assembly is
provided for substantially total support if the same is required.
In addition, the underarm engaging crutch heads define a back-up
safety factor for the handgrip portions of the walker should the
person using the walker not be able to support himself by his hands
and the combined safety belt and crotch engaging sling assembly
defines an ultimate back-up for the handgrips and underarm engaging
crutch heads.
By these three different forms of supporting structures being
included in the same walker the versatility of the walker is
greatly extended and a convalescent patient initially requiring
almost total support may progress toward walking without any
support through repeated use of the same walker and without fear of
falling.
The main object of this invention is to provide a walker which may
be utilized not only by persons requiring minimal support to walk
but also persons requiring greater amounts of support including
almost total support.
Yet another object of this invention is to provide a walker which
may be readily adjusted in order to conform to the height of a
particular person using the walker.
Still another object of this invention is to provide a walker
including underarm engaging crutch head supports that may be not
only vertically adjusted but also laterally adjusted toward and
away from each other.
A final object of this invention to be specifically enumerated
herein is to provide a walker in accordance with the preceding
objects which will conform to conventional forms of manufacture, be
of simple construction and easy to use so as to provide a device
that will be economically feasible, long lasting and relatively
trouble-free in operation.
These together with other objects and advantages which will become
subsequently apparent reside in the details of construction and
operation as more fully hereinafter described and claimed,
reference being had to the accompanying drawings forming a part
hereof, wherein like numerals refer to like parts throughout, and
in which:
FIG. 1 is a perspective view of the walker;
FIG. 2 is a side elevational view of the walker with a convalescent
patient therein and utilizing the various patient supporting
structures of the walker;
FIG. 3 is an enlarged fragmentary vertical sectional view taken
substantially upon the plane indicated by the section line 3--3 of
FIG. 1;
FIG. 4 is an enlarged fragmentary vertical sectional view taken
substantially upon a plane passing through the mid-portion of one
of the underarm crutch head supports; and
FIG. 5 is a perspective view of the belt portion of the combined
safety belt and crotch sling assembly of the walker.
Referring now more specifically to the drawings, the numeral 10
generally designates the walker of the instant invention. The
walker 10 includes an upstanding frame 12 which is generally
rectangular in plan shape and includes four corner uprights 14, 16,
18 and 20 interconnected at their upper ends by means of a pair of
opposite side upper connecting members 22 and 24 extending between
the uprights 14 and 18 and the uprights 16 and 20, respectively, as
well as a pair of opposite end connecting members 26 and 28
extending between the uprights 18 and 20 and the uprights 14 and
16, respectively. If it is desired, the connecting members 22, 24
and 26 may be of a single tubular member bent into U-shaped
configuration and secured at its opposite ends, together with the
opposite ends of the connecting member 28, to the upper ends of the
uprights 14 and 16.
A pair of opposite side intermediate height connecting members 30
and 32 are connected between the uprights 12 and 18 and the
uprights 16 and 20, respectively, and an intermediate height end
connecting member 34 is connected between the uprights 14 and 16 at
the level of the connecting members 30 and 32. Finally, a pair of
lower opposite side connecting members 36 and 38 are connected
between the lower end portions of the uprights 12 and 18 and the
uprights 16 and 20, respectively, while a lower end connecting
member 40 is connected between the lower end portions of the
uprights 14 and 16 at the level of the connecting members 36 and
38.
The lower end extremities of the uprights 14, 16, 18 and 20 include
caster wheel assemblies referred to in general by the reference
numerals 42 and accordingly, the frame 12 is mobile in any
direction across the surface 43 upon which the caster wheel
assemblies 42 are supported.
A combined safety belt and crotch sling assembly referred to in
general by the reference numeral 44 is provided and includes a
waist-encircling belt illustrated most clearly in FIG. 5 of the
drawings and designated by the reference numeral 46. One end of the
belt 46 is provided with a buckle assembly 48 with which the other
free end 50 of the belt 46 may be operatively engaged in order to
adjust the effective circumference of the belt 46. The belt 46
includes peripherally spaced upper anchor rings 52 as well as lower
peripherally spaced anchor rings 54.
The assembly 44 further includes a crotch engaging sling panel 56
and the panel 56 is elongated and transversely narrowed
intermediate its opposite ends. The panel 56 includes four corner
portions from which spring closed hooks 58 are supported and the
four corner spring closed hooks 58 are engageable with the lower
anchor rings 54 for support of the sling panel 56 from the safety
belt 46. Further, the upper opposite side connecting members 22 and
24 include longitudinally spaced front and rear U-bolt anchors 60
to which the spring closed hooks 62 carried by the upper ends of
four adjustable length flexible suspension straps 64 are secured.
The lower ends of the suspension straps 64 are also provided with
spring closed hooks 66 engaged with the upper anchor rings 52.
The walker 10 further includes a pair of opposite side vertical
support bars 68 at its rear end and provided with upper and lower
guide sleeves 70 and 72 slidable on the connecting members 28 and
34, respectively, whereby the bars 68 are supported from the
connecting members 28 and 34 for adjustable shifting toward and
away from each other. Also, inasmuch as the guide sleeves 70 and 72
are slidably mounted on the connecting members 28 and 34, angular
displacement of the bars 68 about their longitudinal axes is
prevented.
Corresponding rear end portions 74 of a pair of front-to-rear
extending support arms 76 include vertical sleeve portions 78
slidably disposed on the bars 68. The sleeves 78 include set-screws
80 whereby the height of the sleeves 78 on the bars 68 may be
adjusted and the forward ends of the arms 76 include longitudinally
spaced apertures 82 by which underarm engaging crutch heads 84 may
be secured in adjusted position along the arms 76 and for support
therefrom. Suitable fasteners 86 are secured through the crutch
heads 84 and the corresponding apertures 82 in the associated arms
76. In this manner, the positioning of the crutch heads 84 along
the arms 76 may be adjusted as desired. Further, inasmuch as the
sleeves 78 carried by the arms 76 are vertically adjustable on the
bars 68, the height of the crutch heads 84 may be varied as
desired. Still further, inasmuch as the sleeves 70 and 72 carried
by the upper and lower ends of the bars 68 are slidable along the
connecting members 28 and 34, the spacing between the crutch heads
84 and their positioning transversely of the frame 12 may be
adjusted as desired according to the needs of the individual
physically handicapped person or convalescent patient utilizing the
walker 10.
In operation, the handicapped person or convalescent patient is
assisted into the frame 12 from the front side thereof after the
combined safety belt and sling panel 56 have been applied. Then,
the lower ends of the suspension straps 64 may be engaged with the
anchor rings 52 and the height of the crutch heads 84 as well as
their positioning longitudinally and transversely of the frame 12
may be adjusted.
After the convalescent or physically handicapped person has thus
been positioned within the walker 10, he may proceed to walk with
at least partial support from the walker 10. If but only little
support is required, the hands of the person using the walker 10
may be engaged with the connecting members 30 and 32 utilizing the
latter as handrails. If additional support for the person using the
walker is desired, the height of the crutch heads 84 may be
slightly increased so that the person using the walker 10 is also
at least partially supported from the crutch heads 84. Finally, if
almost total support of the person utilizing the walker 10 is
desired, the length of the suspension or support straps 64 may be
shortened so that a major portion of the weight of the person
utilizing the walker 10 is supported from the combined safety belt
and crotch sling assembly 44. Of course, if the person is utilizing
the walker 10 only as a mobile hand-rail and he should lose his
handgrip as well as his support from the crutch heads 84, the
assembly 44 constitutes a back-up support preventing the physically
handicapped person or convalescent patient utilizing the walker
from falling to the surface 43.
The foregoing is considered as illustrative only of the principles
of the invention. Further, since numerous modifications and changes
will readily occur to those skilled in the art, it is not desired
to limit the invention to the exact construction and operation
shown and described, and accordingly all suitable modifications and
equivalents may be resorted to, falling within the scope of the
invention.
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