Land vehicles – Wheeled – Attachment
Patent
1995-12-13
1997-12-30
Hurley, Kevin
Land vehicles
Wheeled
Attachment
16 18CG, B60R 1954
Patent
active
057021171
ABSTRACT:
A trolley intended for a medical apparatus and comprising wheels for displacement on a floor surface. In order to push aside cables running on the floor of the working environment, the wheels are provided with a cable pusher having a pushing edge. The plate constituting the cable pusher is provided with approximately triangular cut-outs which receive stationary cams. If no external forces act on the plate, it is pressed onto the cams by springs in such a manner that the apex of the triangular cut-outs bears on the cams. The springs are proportioned so that an obstructing cable is pushed aside by the plate; however, when this plate comes into contact with a fixed obstacle, for example a threshold, the plate is pushed upwards. Damaging of the cable pusher is thus avoided and the risk of overturning of the trolley is reduced.
REFERENCES:
patent: 2450062 (1948-09-01), Voss et al.
patent: 2533403 (1950-12-01), Schultz
patent: 3719370 (1973-03-01), Gintick et al.
patent: 4025099 (1977-05-01), Virden
patent: 4887287 (1989-12-01), Cobben
patent: 4977588 (1990-12-01), Van Der Ende
patent: 5170528 (1992-12-01), Navar et al.
patent: 5339350 (1994-08-01), Thelosen
Hurley Kevin
Slobod Jack D.
U.S. Philips Corporation
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