Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Crutches
Patent
1997-02-13
1998-05-26
Wood, Wynn E.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Crutches
135 65, 135 66, 135 69, 135 77, 135 79, 135911, A45B 300
Patent
active
057552452
ABSTRACT:
The present invention relates to an elongate support element, such as a walking stick, crutch or umbrella stick, comprising an elongate hollow stick which is provided on its underside with two supporting legs which are tiltable between a folded-in position and a folded-out, active position, wherein on the upper part of the stick an actuating element is arranged for actuating the supporting legs and the actuating element is connected to a drive member extending through the hollow stick, wherein the drive member comprises a rod extending through the hollow stick and provided on its underside with a gear rack in addition to pinions each connected to a leg and engaging in the gear rack.
According to a preferred embodiment a stick is therefore provided on its underside with a piece in which the legs are rotatably mounted and in which the transverse wall is arranged through which the rod extends, which transverse wall also functions as stop means for limiting the movement of the legs in the folded-out position.
REFERENCES:
patent: 2346038 (1944-04-01), Mason
patent: 3158851 (1964-11-01), Ruthven
patent: 3763872 (1973-10-01), Gooley
patent: 4811750 (1989-03-01), McAllister
patent: 4827956 (1989-05-01), Toot
patent: 4966316 (1990-10-01), George et al.
patent: 5176160 (1993-01-01), Osborn
patent: 5392800 (1995-02-01), Sergi
patent: 5433234 (1995-07-01), Lapere
patent: 5636650 (1997-06-01), Kroeze
patent: 5640985 (1997-06-01), Snyder et al.
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