LIFTING ARRANGEMENT FOR A CONSTRUCTION MACHINE

摘要

A lifting arrangement for a construction machine comprises a main arm (3) which is provided with a pivot connector (4) at a proximate end thereof and an equipment connector (5) at a distal end thereof, a main arm support means (6) for pivotably supporting said pivot connector (4) of said main arm (3), wherein said main arm support means (6) is movable in a direction which includes at least a component in the front-rear direction with respect to said frame arrangement. Further a guiding means (7) is provided which is engaged to said main arm (3) at a guided portion (10) of said main arm (3) positioned between said pivot connector (4) and said equipment connector (5).

主权项

1. Lifting arrangement for a construction machine, preferably for a wheel loader (1) having a frame arrangement with a front frame portion (30) and a rear frame portion (20), said lifting arrangement being mountable to said frame arrangement,
said lifting arrangement comprising: a main arm (3) which is provided with a pivot connector (4) at a proximate end thereof and an equipment connector (5) at a distal end thereof, a main arm support means (6) for pivotably supporting said pivot connector (4) of said main arm (3), wherein said main arm support means (6) is movable in a direction which includes at least a component in the front-rear direction with respect to said frame arrangement, an actuator (11) for pivoting said main arm (3) about said pivot connector (4) such that said equipment connector (5) is movable between a lowered position and a lifted position, and a guiding means (7) which is engaged to said main arm (3) at a guided portion (10) of said main arm (3) positioned between said pivot connector (4) and said equipment connector (5), wherein upon pivoting said main arm (3) between said lowered position and said lifted position, said guided portion (10) is guided by said guiding means (7) along a curved path.