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Publication numberUS2798533 A
Publication typeGrant
Publication dateJul 9, 1957
Filing dateMar 20, 1953
Priority dateMar 20, 1953
Publication numberUS 2798533 A, US 2798533A, US-A-2798533, US2798533 A, US2798533A
InventorsFrank Richard J
Original AssigneeWinfield Company Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Invalid walker
US 2798533 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

y 1957 R. J. FRANK INVALID WALKER Filgd March 20,, 1953 RICHARD J. FRANK,

BY Wm ATTORNEY United States Patent INVALID WALKER Richard J. Frank, St. Petersburg, Fla., assignor to Winfield Company, Inc., South St. Petersburg, Fla.

Application March 20, 1953, Serial No. 343,774

2 Claims. (Cl. 155-22) This invention relates to invalid supporting devices, and more particularly to frames commonly called invalid walkers.

It is the purpose of this invention to provide a strong rigid walker which will provide that secure support so essential to persons whose lower limbs have become insecure through paralysis, arthritis or the like.

It is a further purpose of this invention to provide the said walker with a seat portion upon which the invalid may repose when his strength becomes exhausted through the effort of walking or similar lapse.

It is a particular object of this invention to provide an invalid walker having all of the above abilities and made from aluminum tubing in such sections that a minimum of parts is involved and extreme rigidity may be effected without the use of heavy wall tubing or welded joints, it being understood that heavy wall tubing adds substantially to the weight and necessary effort of moving the walker and that welded joints in aluminum and light metal structures are commonly subject to failure as well as adding greatly to the expense of construction.

It is the final and complete purpose of this invention to provide an extremely light rigid walking device which can be sold at low cost and thus be most useful to persons partially crippled by wounds or disease. Certain other improvements and advantages will appear as the appended description proceeds and the attached drawings are inspected.

Fig. 1 is an elevation of the complete walker with the seat in a horizontal position.

Fig. 2 is a side elevation of the walker shown in Fig. 1 with the seat in raised position.

Fig. 3 is a plan view of the walker shown in the previous figures with the seat in lowered position.

Referring to the figures, is a major section of the frame consisting of two leg portions 11 and 12 which join into horizontal portions 14 and 15, which in turn merge into opposite portions 16 and 17, in turn joined by the horizontal portions 19 to form the complete unit 10. Joining the vertical portions of unit 10 is a U-shaped frame 20 having horizontal portions 21 and 22 joining into and forming part of a frontal horizontal portion 24 all included in unit 20. It will be understood that U- shaped frame 20 is joined to frame 10 through the use of expansion plugs and like devices well known to the art to form rigid juncture therewith. Joining to and supporting portions 10 and 20 are two straight vertical legs 30 and 31 affixed thereto by bolts 33 and 35. Legs 30 and 31 are provided with projecting studs 38 and 39 upon which hinge a second U-shaped frame 40. U-shaped frame portion 40 has two horizontal sections 41 and 42 which project rearwardly past the leg portions 11 and 12 of frame 10 on either side thereof. Forwardly they project upwardly, outwardly, and then inwardly to join with a connecting member 44 passing across the front of the entire frame. Horizontal portions 41 and 42 serve to support a fabric seat web whose ends are circle portions 41 and 42, as at 53 and 54. The rearward ends of portions 41 and 42 and therethrough the seat 50 are supported by pins 52 and 53 on vertical members 11 and 12 of frame 10 when the seat is down. When the seat is up, as in Fig. 2, the web seat 50 presses tight against the forward vertical legs 31 and 32 as shown, and is thus out of the way of the invalids legs when walking. I prefer to provide the lower ends of legs 11, 12, 30, 31 with rubber feet and since such legs are thin walled these may be removed and the leg length adjusted as best suited to a particular invalid.

It will be obvious that the above described structure is at once simple, capable of easy construction and will be exeremely rigid as has been proven in use and that while it is particularly adapted to be constructed or" aluminum, manifestly other light metals or even extremely thin tubing of heavier metals may be employed and that the structure avoids any necessity for the welding and joints heretofore thought necessary for extremely thin walled metals, especially those of the non-ferrous type.

What I claim is:

1. In an invalid walker, a plurality of substantially straight vertical leg members, two of said members being joined together with and forming part of an outwardly bent substantially horizontal continuous U-shaped one piece portion at their tops and by a similarly bent independent member below said tops; two other of said vertical members being joined to the outer corners of said U portions so that a four-sided frame :is provided, said frame in combination with a U-shaped member slightly wider than the above said U portions, and pivoted to two of said vertical members between the first said U portions, so as to swing thereon and over the vertical parts of the said one-piece section; said swinging U frame adapted to receive the ends of a fabric seat and to support the same within the four-sided frame when swung downwardly against stops provided on the rearward portions thereof.

2. The invalid walker structure which includes a single piece of seamless aluminum tubing providing two rear legs and a top rail, two substantially straight front legs joined at their tops to the aforesaid piece, a brace member engaged with all of said legs a seat frame and supplementary brace member attached by pivot bolts to said front legs to aid in spacing and securing the same and to engage the sides of said rear legs and stops thereon when lowered, said rear legs in turn spacing and supporting said seat frame and a seat thereon when so lowered and a person sits on said seat.

References Cited in the file of this patent UNITED STATES PATENTS 1,087,928 Diemer Feb. 24, 1914 1,163,263 Rudduck Dec. 7, 1915 1,448,783 Blewitt et a1. Mar. 20, 1923 1,572,378 Breen Feb. 9, 1926 2,305,249 Frost Dec. 15, 1942 2,430,235 Mendenhall Nov. 4, 1947 2,433,969 Wood Ian. 6, 1948 2,627,904 Thieman Feb. 10, 1953 2,708,473 Gable May 17, 1955

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1087928 *Mar 9, 1912Feb 24, 1914Gendron Wheel CompanyInvalid's wheel-chair.
US1163263 *Sep 10, 1914Dec 7, 1915John F RudduckNursery-chair.
US1448783 *May 26, 1921Mar 20, 1923Blewitt Mary AnnaInvalid support
US1572378 *Feb 2, 1925Feb 9, 1926Breen Edward TChair seat
US2305249 *May 7, 1941Dec 15, 1942Frost Horatio TInvalid supporting device
US2430235 *Feb 18, 1946Nov 4, 1947Frank C MendenhallWalking-aid frame
US2433969 *Jan 30, 1945Jan 6, 1948Chester F WoodInvalid's vehicle
US2627904 *Jan 17, 1951Feb 10, 1953Cecil L HallMechanical walker for invalids
US2708473 *Apr 5, 1952May 17, 1955Gable Harry LInvalid walker
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2866495 *Jun 5, 1956Dec 30, 1958Invalid Walker & Wheel Chair CInvalid folding walker and chair
US3232251 *Aug 16, 1963Feb 1, 1966Hughes Walter PCombined bed tray, table and walker
US3256036 *Jul 30, 1964Jun 14, 1966American Radiator & StandardLift device
US3354893 *Oct 12, 1966Nov 28, 1967Schmerl Egon FritzWalker
US3517677 *Jan 21, 1969Jun 30, 1970Smith Alfred AInvalid walker
US4162101 *Sep 8, 1977Jul 24, 1979Mccague Elinor MWalker for invalid persons
US4212493 *Sep 25, 1978Jul 15, 1980Ledesky Eugenia AApparatus for assisting semi-invalid person to walk
US4322093 *Mar 11, 1980Mar 30, 1982Otto Roger CWheeled walking aid with seat and hand brake
US4415198 *Nov 18, 1980Nov 15, 1983Brearley Gordon DSeat for invalid walker
US4532948 *Feb 21, 1984Aug 6, 1985Burrows Esther JWalker with a flexible seat
US4621804 *Mar 25, 1985Nov 11, 1986R-Jayco Ltd.Therapeutic roller/walker
US4643211 *Nov 2, 1984Feb 17, 1987Uniscan LimitedCollapsible walking frame having pivotal seat
US4748994 *Jan 17, 1986Jun 7, 1988Guardian Products, Inc.Reversible walker device
US4890853 *Mar 7, 1988Jan 2, 1990Luanne OlsonWheelchair walker
US4974620 *Nov 30, 1989Dec 4, 1990Quillan Marie A FInvalid walker and seat
US5131715 *Mar 27, 1991Jul 21, 1992Balles Rosemary KMobile chair apparatus
US5133377 *Dec 5, 1990Jul 28, 1992Truxillo Peter LInvalid walker
US5280800 *Mar 17, 1992Jan 25, 1994Pirrallo Frank GRemovable one piece walker seat
US5417472 *Oct 16, 1991May 23, 1995Etac AbArrangement in a wheeled appliance
US5605169 *Jun 12, 1996Feb 25, 1997Jenny WalkerCollapsible walker with a retractable seat
US5882067 *Jun 9, 1997Mar 16, 1999Sunrise Medical Hhg Inc.Rigid seat for folding invalid walker
US5904167 *Sep 2, 1997May 18, 1999Moye; John F.One legged two handed walking device
US5904168 *Jul 23, 1998May 18, 1999Alulyan; MorisWalker with an expandable seat
US6220620 *Feb 21, 1999Apr 24, 2001Mary M. HarrounWheeled height-adjustable rehabilitation chair
US6371142 *Jul 19, 1999Apr 16, 2002Tubular Fabricators IndustrySeated walker
US7040637 *Oct 12, 2001May 9, 2006Invacare CorporationInwardly folding rollator with an upwardly pivotable seat
US7588043 *Dec 13, 2007Sep 15, 2009Bais Mario GApparatus for mobilization of individuals resulting from injury or surgery to foot
US8720914 *Nov 5, 2012May 13, 2014Alan C. HeathSafety walker
US20140261587 *Mar 14, 2014Sep 18, 2014Denis D. PriceStair-assist device
Classifications
U.S. Classification297/6, 135/67, 297/335
International ClassificationA61H3/00
Cooperative ClassificationA61H2201/1633, A61H3/00
European ClassificationA61H3/00