Crane securement latch

Details Crane securement latch Crane securement latch

1990-08-27

1992-09-01

Oberleitner, Robert J.

Railways

Car stops

Special track

104254, B61K 706

Patent

active

051429926

ABSTRACT:
A latch for a crane travelable along a pair of generally parallel rails and having an overhead frame and a plurality of wheels engaging both of the rails for supporting the crane during its travel on the rails. The latch comprises a latch arm mounted on the crane and having a path of movement substantially in the direction of travel of the crane. The latch arm also includes a transversely projecting hook. A latch block is stationarily mounted and has a lip member projecting into the path of movement of the latch arm. The hook on the latch arm moves with the latch arm into engagement with the lip member and the lip member and hook have an engaged position in which the lip member is positioned between the hook and the crane whereby the crane is held from traveling away from the latch block. The latch may also include a compressible bumper mounted on the crane and engaging the latch block compressively in the direction of the crane travel toward the latch block. The crane is thereby also held from traveling toward the latch block. A support is positioned below the latch arm when the hook and lip means are in their engaged position. The support is movable to an upward position beneath the latch arm to support the latch arm in an upward position in which the hook and lip member are disengaged.

REFERENCES:
patent: 809483 (1905-06-01), Whittemore
patent: 3696756 (1972-10-01), Elmore et al.
patent: 3710728 (1973-01-01), Levitt
patent: 4453469 (1984-06-01), Bedford

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