Linkage arrangement

摘要

A linkage arrangement (10) is provided for moveably connecting an attachment (6) to a work machine (8). The linkage arrangement (10) includes linkage group (12) having an upper arm (14) with a machine pivot point (20) for connecting to the work machine (8) and an attachment pivot point (22) for connecting to the attachment (6). The linkage group (12) further has a lower arm (16) with a machine pivot point (24) for connecting to the work machine (8) and an attachment pivot point (26) for connecting to the attachment (6). An actuator (30) extends between the upper and lower arms (14, 16), whereby during normal operation an increase in the length of the actuator (30) results in the attachment (6) being lowered relative to the work machine (8).

主权项

1. A linkage arrangement for moveably connecting an attachment to a machine, said linkage arrangement comprising:
a first linkage group having an upper arm with a machine pivot point for connecting to the machine and an attachment pivot point for connecting to the attachment, and a lower arm with a machine pivot point for connecting to the machine and an attachment pivot point for connecting to the attachment; a variable length actuator extending between the upper and lower arms, the variable length actuator being configured such that during normal operation an increase in the length of the actuator results in the attachment being lowered relative to the machine; wherein at least one of the upper arm and the lower arm has a dual wall construction and wherein at least a portion of the actuator is positioned between the two walls of the dual wall construction.