US 2556121 A
Description (OCR text may contain errors)
June 5, 1951 J. D. THOMAS 2,556,121
DETACHABLE WHEEL CHAIR WALKING APPARATUS Filed July 15, 1949 mvEN-rcm Patented June 5, 1951 UNITED DETACHABLE WHEEL CHAIR WALKING APPARATUS Jean D. Thomas Buffalo, N, Y. Application July 13, 1949, Serial No. 104,401
' This invention relates generally to certain new and useful improvements in apparatus for use by invalids but more particularly to an apparatus for use in conjunction with or without a wheel chair to enable the user, supported by such apparatus, to walk and move about at will and thereby exercise his leg muscles to strengthen and improve their condition.
It has for one of its objects to provide an invalid walking apparatus of this character which is so designed and constructed as to be readily attached to and detached from a wheel chair, by the invalid himself, while seated in such chair, and which affords him complete safety and protection at all times when in use.
Another object of the invention is to provide the wheel chair walker with a novel two-part seat structure which can be readily folded out of use when desired.
Other features of'the invention reside in the construction and arrangement of parts hereinafter described and particularly pointed out in the appended claims.
In the accompanying drawings- Figure 1 is a perspective view of my apparatus attached for use to a wheel chair. Figure 2 is an enlarged fragmentary section taken on line 22, Figure 1. Figure 3 is a fragmentary perspective View of the walker equipped with my improved seat. Figure 4 is an enlarged fragmentary section taken on line 4-4, Figure 3. Figure 5 is a cross section taken on line 55, Figure 4.
Similar characters of reference indicate corresponding parts throughout the several views.
By way of example, I have shown my invention in conjunction with a wheel chair of ordinary construction, In indicating the frame, I I the seat, !2 the side arms, I3 the hand-propelled wheels, and I4 the casters or steering wheels. The walking device. indicated generally by the numeral I5, is adapted to be detachably connected in correlation to the Wheel chair to permit the patient to transfer himself from the chair to the walker and vice versa with complete support at all times.
In its preferred construction, the walking device l5 consists of a comparatively light frame made of tubular material and including laterallyspaced side sections [6, l6 of substantially rectangular shape having handle bars I1, I! at their upper ends. These handle bars are telescopically fitted in the companion side sections for vertical adjustment to accommodate the height of the patient for supporting himself while walking or exercising. At their lower ends these framesections it have casters l8 mounted thereon 4Claims. (c1. 155-.-22)
which glidingly support the device when coupled with the wheel chair or at such timeswhen the patient desires to use the device. as a unit separate and detached'from'the wheel chair.
These frame-sections l6 are adjustably joined transversel in spaced relation at their front ends to accommodate the width of the wheel chair, while between their rear ends they are unobstructed to permit the patient to transfer himself from the chair to a walking position between such sections and back again. For this purpose these sections may be joined by telescopically+ fitted guard rails or tie members I9, 2ll and clamping screws 2| or the like provided for retaining themin their properly spaced position. w
The rear end of the walking device is adapted to be detachably connected to the wheel chair and for this purpose its frame-sections have horizontal rearwardly-extending coupling members or bars 22 of tubular material adapted for disposition along opposite sides of the chair beneath the arm rests thereof, each member being f tted at one end with a coupling plug 23 for connecting it endwise by an axially-disposed bolt 24 to the adjoining side section IS, the latter having a vertical row of bolt-receiving openings 25 therein to position the companion coupling member at the proper height in relation to the Wheel chair. Connected to each coupling member 22 is a transverse hook-like fitting 25 whose threaded shank 21 is adjustably positioned in one or another of a series of openings 28 formed in such member to bring the hook portion of such fitting into embraced relation with the adjoining front portion of the chair-frame ID in the manner shown in Figures 1 and 2. A nut or adjusting knob 29 is applied to the fitting-shank for detachably clamping the fitting securely in place, the latter having a rubber gripping sleeve 30 thereon. By this construction, the patient himself can readily attach and detach the walking device to his wheel chair while seated therein and without the aid of others, and it does not interfere or in any way prevent the wheel chair being propelled in its usual manner should the patient have occasion to do so.
Adjustably mounted at the rear side of the walker between its frame-sections I6 is a seat for the purpose of enabling the patient to assume a sitting posture when using the walker. This seat is vertically foldable to and from an operative position and consists of companion sections 3|, 31, each secured at its outer end to a bracket 32 pivoted at 33 to the adjoining upright portion of the frame-section l6 of the walker. Each bracket includes a channel portion 34, rising above its pivot, which embraces the frame-section in the operative position of the seat, as shown in Figure 3, and effectually retains the same in a horizontal position, the opposing inner ends of the seat-sections 3| substantially meeting and abutting each other as shown. As,
shown in Figure 4, one seat-section has an eye 35 on theunderside of its inner end and the companion seat-section has a mating hook 36 thereon, whereby such sections are coupled against accidental displacement.
While manifestly simple, compact and inexpensive in construction, this wheel chair walker or exerciser attachment is very practical and enables the patient himself to connect it to and disconnect it from his wheel chair and to have maximum confidence for support and complete safety and protection when he desires to exercise his leg muscles and at the same time be assured that at the end of such exercising period he can again relaxin his chair by merely changing from a standing to a sitting posture. In practice, thepatien-t propels his wheel chair to the walking attachment and after connecting the parts," he is in unobstructed correlation with the attachment to transfer himself unaided from the chair to a standing posture between the frame-sections I5,v l6 and, after exercising, as readily transfer himself to the chair, and with the; assurance of complete supporting protection at all times.
I claim as my invention:
h Awalking device for detachable connection to a'whee'l chair, comprising a wheeled frame having members projectingfrom the rear end thereof for disposition along opposite sides of the chair, and clamping elements applied transversely-of said members for releasable clamping engagement with adjoining portions of the wheel chair;
o r 4 2. A walking device for detachable connection to a wheel chair, comprising a wheeled frame having members projecting from the rear end thereof for disposition'along opposite sides of the" chair, and hook-like fittings adjustable transversely on said members for clamping engagement with the adjoining portions of the wheel chair.
I 3. A walking device for detachable connection to a wheel chair, comprising a wheeled frame having members projecting from the rear end thereof for disposition along opposite sides of the chair, and fittings applied to said members for detachably clamping adjoining portions of the wheel chair thereto, each of said fittings including an attaching shank engageable transversely with the companion member and provided at one end with a hook between which and such member the adjoining portion of the wheel chair is adapted to be detachably clamped. 4. YA walking device for detachable connection tea wheel chair, comprising a wheeled frame -having members projecting from the rear end thereof for disposition along opposite sides of the chair and having rows of transverse openings therein, and fittings engageable with one "or another of the openings in said members for "detachably clamping adjoining portions of the The following references are of record in the file of this patent: I
UNITED STATES PATENTS Number Name Date l,420,095- I Gutter June 20,,1922 Yusek Nov. 3, 1942