US3212817A

US3212817A - Legrest support for wheel chairs

Info

Publication number: US3212817A
Application number: US342423A
Authority: US
Inventors: Fenton F Sully
Original assignee: Everest and Jennings Inc
Current assignee: Everest and Jennings Inc
Priority date: 1964-02-04
Filing date: 1964-02-04
Publication date: 1965-10-19
Anticipated expiration: 1982-10-19

Description

Oct. 19, 1965 F. F. SULLY LEGREST SUPPORT FOR WHEEL CHAIRS Filed Feb. 4, 1964 V, mu m mA/r M r w F ATTORNEYS United States Patent 3,212,817 LEGREST SUPPORT FOR WHEEL CHAIRS Fenton F. Sully, Encino, Calif, assignor to- Everest & Jennings, Inc., Los Angeles, Calif., a corporation of California Filed Feb. 4, 1964, Ser. No. 342,423

' 4 Claims. (Cl. 297-429) This invention relates to a combined wheel chair and legrest and is particularly adapted for a legrest structure which is adapted to be mounted upon a wheel chair footrest and to be adjustable relative to the footrest.

It is an object of the invention to provide a wheel chair legrest which can be mounted upon a conventional footrest bracket in such a way that the legrest can be swung from a leg-supporting position to a position laterally thereof and at right angles to the supporting position, and wherein the legrest can also be adjusted in position longitudinally of the footrest bracket and toward and away from the footrest.

Another object of the invention is to provide a swinging and vertically adjustable legrest including a clamp unit for mounting the legrest on a footrest bracket where in the clamp is constructed to permit swinging of the legrest about the longitudinal axis of the footrest bracket as well as longitudinal adjustment of the legrest along the axis of the footrest bracket.

The above and other objects will more fully appear from the following description in connection with the accompanying drawing, in which:

FIG. 1 is a side elevational view of the forward portion of a wheel chair with an embodiment of the invention associated therewith, the legrest panel being shown in broken lines;

FIG. 2 is an enlarged detail taken approximately on the line 22 of FIG. 1 with the legrest swung approximately 90 from the position shown in FIG. 1;

FIG. 3 is an enlarged sectional detail taken approximately on the line 3-3 of FIG. 2;

FIG. 4 is a sectional detail taken approximately on the line 44 of FIG. 3.

In the drawing there is shown a portion of a wheel chair including a forward vertical frame member 6 supported by a caster wheel unit 8 and having a lower horizontal side frame member 10. Intermediate the ends of the vertical frame member 6 and parallel to the lower frame member 10, is a short tubular member 12 which with the lower frame member 10 extends slightly forwardly of the vertical frame member 6. Suitably secured as by welding to the lower frame member 10 and the horizontal tubing section 12 is a footrest mounting 14 which pivotally supports at 16 a cylindrical footrest bracket 18. The footrest bracket can be swung forwardly and upwardly around its pivot 16 and held at a desired angular position by means of a rod 20 pivotally connected to the footrest bracket at 22 and extending through a pair of spring-

biased catch plates

24 and 26, the latter being welded to a pin 28 extending laterally from the footrest bracket support 14.

On the lower end of the footrest bracket 18 is a footrest assembly 30 carried by a tubular member 32 which telescopes in the bracket 18 and can be tightened in a desired telescoped position by means of a headed bolt 34 which is adapted to tighten a wedge within the tubular or cylindrical bracket 18 in a well-known manner, not shown, since this structure is not pertinent to the present invention.

Mounted upon the footrest bracket 18 is a legrest clamp 36 made up of two

halves

38 and 40 which are held together by four bolts 42 which are slidable through suitable bores in the clamp portion 38 and threaded into the clamp portion 40.

ice

Said

clamp portions

38 and 40 are interiorly concave to fit about cylindrical footrest bracket 18 and each of said clamp members is provided with internally grooved portions 44 and 46 lying circumferentially about the footrest bracket 18.

Lying within the circumferentially grooved portions 44 and 46 of the two clamp sections is the grooved end 48 of a legrest panel support 50 which extends outwardly of the clamp through

complementary slots

52 and 54 respectively in the

clamp sections

38 and 40, and which communicate with their respective internal grooves 44 and 46. As shown in FIG. 3 the legrest panel support 50 can be swung about the footrest bracket 18 from the full line to the broken line position of said support against the frictional drag of a leaf spring 51 in the groove 44, the swinging movement being limited by the spaced ends of the

slots

52 and 54. The legrest support 50 has journalled thereon a plate 56 which has U-shaped straps 58 to receive the legrest support 50 for relative rotational movement. Extending from opposite sides of the legrest support 50 are stop members 60 which are alternately engaged by the plate 56 when said plate is tilted, the limit of tilting movement being indicated by the broken lines 62 in FIG. 4.

Suitably secured to the plate 54 is a legrest panel 64 which may be fastened to said plate by means of bolts 66.

The legrest panel 64 is adapted to support a medial portion of the leg between the knee and the ankle when the footrest 30, on its bracket 18, is swung forwardly and upwardly so that the leg of the patient will remain approximately in the same relative alignment with respect to the footrest as it would be if the footrest were suspended downwardly, as in FIG. 1. Because of the different leg lengths of patients, it is necessary to adjust the footrest 30 to accommodate a particular patient, and it is likewise highly desirable to shift the legrest panel 64 to accommodate legs of different lengths.

The present legrest panel provides for swinging movement of the legrest support 50, as indicated in FIG. 3, as well as for longitudinal adjustment of the entire legrest, including the clamp 36 when the footrest 30 is adjusted in length. The legrest clamp 36 provides a simple and economical unit which permits both swinging and longitudinal adjustment of the legrest. At the same time the clamp 36 can be tightened against unwanted longitudinal movement along the footrest bracket 18 by means of the bolts 42 which also keep the clamp from undesirable rotation about the footrest bracket.

It will of course be understood that various changes can be made in the form, details, arrangement and proportions of the various parts without departing from the spirit of the invention.

I claim:

1. In combination with a wheel chair having a cylindrical footrest bracket thereon, a clamp shiftable longitudinally of said bracket, means on said clamp for securing it on said bracket against shifting movement relative to the bracket, said clamp having a slot therein on a plane transverse to the longitudinal axis of the bracket, a legrest panel support having an end swingable about said bracket and extending through said slot outwardly from said clamp portions of said clamp which define the ends of said slot comprising means limiting swinging movement of said legrest panel support from a generally vertical position to a generally horizontal leg supporting position, and a legrest panel on the outwardly extending portion of said support.

2. The structure in claim 1, and a portion of said slot comprising an internal groove in said clamp partially about said bracket, and another portion of said slot extending radially outwardly from said internal groove to the exterior of said clamp.

3. In combination with a wheel chair having a cylindrical footrest bracket thereon, a clamp shiftable longitudinally of said bracket, means on said clamp for securing it on said bracket against shifting movement relative to the bracket, said clamp having a slot therein on a plane transverse to the longitudinal axis of the bracket, a legrest panel support having an end swingable about said bracket and extending through said slot outwardly from said clamp, a legrest panel on the outwardly extending portion of said support, a portion of said slot comprising an internal groove in said clamp partially about said bracket, another portion of said slot extending radially outwardly from said internal groove to the exterior of said clamp, and that end of said support swingable about said cylindrical footrest bracket being looped about said bracket and slidable in said internal groove, and the outwardly extending portion of said support extending through the radially outwardly extending portion of said slot and being limited by said latter portion of said slot in its swinging movement. 7

4. In combination with a wheel chair having a cylintudinally of said bracket, means on said clamp for setudinally of said bracket, means on solid clamp for securing it on said bracket against shifting movement relative to the bracket, said clamp having a slot-therein on a plane transverse to the longitudinal axis of the bracket, a legrest panel support having an end swingable about said bracket and extending through said slot outwardly from said clamp, a legrest panel on the outwardly extending portion of said support, said clamp being in two parts, detachable connecting means securing said parts, said two parts of said clamp having complementary concave portions to receive said cylindrical bracket, and said concave portions having complementary grooves to receive the end of said support lying about said bracket.

References Cited by the Examiner UNITED STATES PATENTS FRANK B. SHERRY, Primary Examiner.

Claims

1. IN COMBINATION WITH A WHEEL CHAIR HAVING A CYLINDRICAL FOOTREST BRACKET THEREON, A CLAMP SHIFTABLE LONGITUDINALLY OF SAID BRACKET, MEANS ON SAID CLAMP FOR SECURING IT ON SAID BRACKET AGAINST SHIFTING MOVEMENT RELATIVE TO THE BRACKET, SAID CLAMP HAVING A SLOT THEREIN ON A PLANE TRANSVERSE TO THE LONGITUDINAL AXIS OF THE BRACKET, A LEGREST PANEL SUPPORT HAVING AN END SWINGABLE ABOUT SAID BRACKET AND EXTENDING THROUGH SAID SLOT OUTWARDLY FROM SAID CLAMP PORTIONS OF SAID CLAMP WHICH DEFINE THE ENDS OF SAID SLOT COMPRISING MEANS LIMITING SWINGING MOVEMENT OF SAID LEGREST PANEL SUPPORT FROM A GENERALLY VERTICAL POSITION OF A GENERALLY HORIZONTAL LEG SUPPORTING POSITION, AND A LEGREST PANEL ON THE OUTWARDLY EXTENDING PORTION OF SAID SUPPORT.