Load`s effect simulating force generating device for use with e.g. power lift truck, has structure on which jack is fixed, where jack is surmounted with bar and supplied by engine unit regulated in pressure by adjustable pressure limiter

摘要

#CMT# #/CMT# The device has a structure (1) on which a jack (2) is fixed, where the jack is surmounted with a cross bar (3). The jack is supplied by a hydraulic pump engine unit (4) regulated in pressure by an adjustable pressure limiter (5), and a reservoir contains an oil. A pole (7) is placed at each end of the structure of a power lift truck and a rod, and a fork is placed under the cross bar. The engine generates a constant effort irrespective of the position and movements of hoisting machinery within in the limit of a clearance of the jack. #CMT#USE : #/CMT# Used for generating a force simulating the effects of a load on a safety device of a hoisting machinery e.g. power lift truck (claimed), where the safety device is utilized for maintaining the load in stop and maintenance positions on the machinery. #CMT#ADVANTAGE : #/CMT# The device allows to efficiently test the load in a power lift truck, thus improving efficiency of the safety device permitting to the load to be in top and maintenance positions. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a structure, a jack, cross bar and ballast constituting a maintaining unit. 1 : Structure 2 : Jack 3 : Cross bar 4 : Hydraulic pump engine unit 5 : Adjustable pressure limiter.