Lip construction for dock leveller

Details Lip construction for dock leveller Lip construction for dock leveller

1982-08-30

1984-05-29

Purser, Ernest R.

Bridges

Gangway, ramp, or dock leveler

Attached

E01D 100

Patent

active

044505981

ABSTRACT:
A lip construction for pivotal connection to the ramp of a dock leveller is disclosed. The lip comprises upper and lower rectangular steel plates providing front and rear lip edge portions. Means is provided for securing the lip rear edge portion for pivotal connection to a dock leveller ramp. The steel plates are bent along their lengths to define first and second lip portions which are slightly angled relative to each other. The lower plate extends slightly outwardly of the upper plate front portion, where the upper plate is secured along its front portion to the lower plate extension. The upper plate is also secured to the lower plate along the first lip portion. This arrangement places the upper plate of the second lip portion in compression and corresponding lower plate in tension when a load is applied to the lip during use. The lip construction is lightweight compared to its load bearing capacity and is particularly useful on small dock leveller installations which are attached directly to the loading dock edge.

REFERENCES:
patent: 2592919 (1952-04-01), Loomis et al.
patent: 2751615 (1956-06-01), Kelley
patent: 2843865 (1958-07-01), Loomis
patent: 3031701 (1962-05-01), Fenton
patent: 3064289 (1962-11-01), Burch et al.
patent: 3255478 (1966-06-01), Lambert
patent: 3526011 (1970-09-01), Alten
patent: 4257136 (1981-03-01), Loblock

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