Automatic wheel chocking apparatus having an improved drive mech

Details Automatic wheel chocking apparatus having an improved drive mech Automatic wheel chocking apparatus having an improved drive mech

1992-07-22

1993-10-05

Huppert, Michael S.

Material or article handling

Load-transporting type vehicle and external means...

Means serves to align wheeled vehicle and load receiving or...

414396, 414584, 410 30, B65G 6702

Patent

active

052499057

ABSTRACT:
An automatic wheel chocking apparatus for restraining movement of a vehicle away from a loading dock during a loading operation. The apparatus comprises an elongated trough formed in the driveway that extends outwardly from the front face of the loading dock and a wheel chock is mounted in the trough for movement between a storage position, where the wheel chock is located beneath the level of a driveway, and an operative position where the chock extends upwardly above the driveway and is disposed to engage a wheel of a vehicle. The wheel chock is moved between the storage and operative positions by a drive mechanism that is located within the trough and includes a lead screw. A nut is threaded on the lead screw and is connected to the wheel chock via a rigid link. Rotation of the lead screw will move the chock between the storage and operative positions.

REFERENCES:
patent: 2413744 (1947-01-01), Carter
patent: 2773564 (1956-12-01), Garard, Sr.
patent: 3305049 (1967-02-01), Willey
patent: 4676344 (1987-06-01), Locicero
patent: 4915568 (1990-04-01), West
patent: 4963068 (1990-10-01), Gelder
patent: 4969792 (1990-11-01), Ellis et al.

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