IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0260813
(1994-06-16)
|
발명자
/ 주소 |
- Davis Richard D. (Palm Harbor FL)
|
출원인 / 주소 |
- Trek Medical Corporation (Tampa FL 02)
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
0 |
초록
▼
An adjustable crutch (10) includes upper and lower assemblies (12, 14) which are slidably interconnected with one another is constructed of hollow aluminum pipes, or tubing, (16, 18, 42, 44) interconnected by glass or fiber-reinforced nylon members (20, 22, 54). Walls of the hollow aluminum tubing e
An adjustable crutch (10) includes upper and lower assemblies (12, 14) which are slidably interconnected with one another is constructed of hollow aluminum pipes, or tubing, (16, 18, 42, 44) interconnected by glass or fiber-reinforced nylon members (20, 22, 54). Walls of the hollow aluminum tubing extend into annular cavities (26) formed in the glass or fiber-reinforced nylon members, with molded-in bosses, or plugs, (28) of glass or fiber-reinforced nylon material extending into bores of the aluminum tubing. A hand grip support (54) has shear pins (64) for selectively engaging holes (66) in upper shafts (16, 18). A hand grip (68) on the hand grip support is laterally offset and the upper shafts are separated by at least 5 inches. The hand grip defines a holding notch (78) for interconnecting two crutches so that they can be easily held by one hand while only one of the crutches is used. A foam arm cushion (32) has a convex top edge (34) and concave side surfaces (36a, 36b ). A longitudinal groove, or tunnel, (50) in a bore of a strut support (22) accommodates a spring-biased button (46) when a strut assembly (40) is slid through the strut support. A boot (53) of a radial crutch tip assembly (52) has fluid-evacuation drain passages (53a) therein.
대표청구항
▼
An adjustable crutch of a type comprising upper and lower assemblies which are slidably interconnected with one another, the upper assembly comprising generally two elongated, separated, parallel, upper shafts which are interconnected at a first end by an arm pad support and at an opposite end by a
An adjustable crutch of a type comprising upper and lower assemblies which are slidably interconnected with one another, the upper assembly comprising generally two elongated, separated, parallel, upper shafts which are interconnected at a first end by an arm pad support and at an opposite end by a strut support, and the lower assembly comprising an elongated strut assembly attached at an upper end thereof to a hand-grip support which slidably engages intermediate portions of said upper shafts and at a lower end thereof to a clutch floor-engaging tip, an intermediate portion of said strut assembly slidably engaging said strut support, wherein: said upper shafts and said strut assembly are constructed of hollow metallic pipe, said arm pad supports, said strut support, and said hand-grip support are constructed of a resinous plastic; wherein said upper shafts and said strut assembly extend into annular cavities of said arm pad support, said strut support and said hand-grip support with bosses of said resinous plastic material respectively formed as one piece with said arm pad support, said strut support and said hand-grip support extending into bores of said metallic pipe of said upper shafts and said strut assembly and wherein is further included an attachment means for respectively attaching internal and external surfaces of said metallic pipe to surfaces of said resinous plastic material forming said annular cavities positioned internally and externally of said metallic pipe.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.