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1. (WO2017171957) CLAMP HAVING A LOAD-CLAMPING HYDRAULIC CYLINDER WITH MULTIPLE TELESCOPICALLY EXTENSIBLE STAGES ADAPTED TO APPLY LOAD CLAMPING FORCE ALTERNATIVELY RESPONSIVE TO LOAD-LIFTING FORCE OR LOAD SIZE

Pub. No.:    WO/2017/171957    International Application No.:    PCT/US2016/069362
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Sat Dec 31 00:59:59 CET 2016
IPC: B25J 13/08
B25J 15/04
B66F 9/22
Applicants: CASCADE CORPORATION
Inventors: RUNNING, Brent, G.
Title: CLAMP HAVING A LOAD-CLAMPING HYDRAULIC CYLINDER WITH MULTIPLE TELESCOPICALLY EXTENSIBLE STAGES ADAPTED TO APPLY LOAD CLAMPING FORCE ALTERNATIVELY RESPONSIVE TO LOAD-LIFTING FORCE OR LOAD SIZE
Abstract:
A load-handling clamp mountable on a lift truck has one or more hydraulic clamping cylinders of the type having two or more sequentially extensible stages capable of applying either load-weight-responsive variable hydraulic load-clamping force or, alternatively, load-size-responsive variable hydraulic load-clamping force, without risking the clamp's dropping of a clamped load. The length of the hydraulic clamping cylinder(s) may in some applications extend generally forwardly from a supporting lift truck, and in other applications extend generally laterally from a supporting lift truck.