Mobile crane having a releasable coupling connecting the lower c

Details Mobile crane having a releasable coupling connecting the lower c Mobile crane having a releasable coupling connecting the lower c

1996-03-20

1997-09-09

Brahan, Thomas J.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212253, B66C 2384

Patent

active

056646925

ABSTRACT:
A mobile crane includes a releasable coupling for connecting the upper and lower carriages together in a simple and rapid manner through a holding ring connected with the lower carriage and an axial cylindrical ring extension of an externally toothed ring which is rotatably mounted on the upper carriage. Both the holding ring and the ring extension are provided with ribs which interlock to transmit relative rotation and easily de-couple. A bayonet joint type of coupler ensures reliable coupling of the externally toothed ring with the holding ring.

REFERENCES:
patent: 3921817 (1975-11-01), Petrik et al.
patent: 4248488 (1981-02-01), Sable
patent: 5018630 (1991-05-01), McGhie
patent: 5176267 (1993-01-01), Pech

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