Mechanism for automatically preventing a motor vehicle from drop

Details Mechanism for automatically preventing a motor vehicle from drop Mechanism for automatically preventing a motor vehicle from drop

1989-08-11

1991-03-05

Skaggs, H. Grant

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 871, 254122, 182141, B60S 1300

Patent

active

049970658

ABSTRACT:
A mechanism for automatically preventing a motor vehicle from dropping from a wheels support plate of a lifting apparatus of a system for lifting the vehicle for repair thereof comprises (i) a barrier wall connected to one end portion of the support plate along a width direction thereof for pivotal movement between a vertical position and a horizontal position which is on the support plate, (b) positioner for maintaining the barrier wall in the vertical position when the support plate is not in a lowest position, so that if a motor vehicle driven onto the support plate from a direction opposite to said one end portion of the support plate and supported thereon should accidentally move forward, the barrier wall engages a front wheel of the vehicle to prevent the vehicle from dropping from said one end portion of the support plate, and (c) leveler which brings the barrier wall down to the horizontal position when the support plate has been moved to a lowest position. According to one aspect of the invention, the positioner comprises a first urging device for urging the barrier wall downwardly at all times except when the support plate is in the lowest position, and the leveler comprises a second urging device for urging the barrier wall upwardly against the action of the first urging device to allow the barrier wall to rotate to the horizontal position when the support plate has been moved to the lowest position.

REFERENCES:
patent: 2098376 (1937-11-01), Cunneen
patent: 3048238 (1962-08-01), Wallace
patent: 3375905 (1968-04-01), Swick, Jr.
patent: 3532185 (1968-06-01), Sherry

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