Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Crutches
Patent
1996-02-16
1998-03-10
Wood, Wynn E.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Crutches
135 65, 135 68, 135 71, 135 72, A61H 302
Patent
active
057250057
ABSTRACT:
According to the present invention, there is provided a walking assistance crutch which is comfortable to use, and which can keep a user from falling on his face by its existence even if he falls down by accident.
Features in structure of the crutch according to the invention are as follows. More specifically, the crutch comprises a crutch main body including an armpit rest at its upper end, a foot portion at its lower end, and a handle grip at its intermediate portion. A vertical length or width W of the armpit rest is increased, and a portion of the armpit rest to be held beneath a shoulder of a user is formed to have a substantially triangular cross section so that it has curved surfaces which conform with contours of an inner side of an upper arm and a breast side wall of the user. Also, the armpit rest is formed to have the curved surfaces which extend substantially in conformity with the contours of the inner side of the upper arm and the breast side wall of the user, and front and rear portions of the armpit rest are formed larger than the portion to be held beneath the shoulder of the user. The handle grip is extended forwardly from a phantom line extending between the armpit rest and the foot portion.
REFERENCES:
patent: 1311664 (1919-07-01), Pearl
patent: 2362642 (1944-11-01), Lamb
patent: 2417171 (1947-03-01), McGowan
patent: 2442896 (1948-06-01), Joseph
patent: 2630128 (1953-03-01), Slater
patent: 2736330 (1956-02-01), Wood
patent: 2788793 (1957-04-01), Abbott
patent: 3150672 (1964-09-01), Johnson, Jr.
patent: 3304946 (1967-02-01), Lutes
patent: 4637414 (1987-01-01), Urban
Ohta Keizo
Yamasaki Takuya
Ohta Inc. (Ohta Kabushiki Kaisha)
Wood Wynn E.
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