| 摘要 |
The linkage arrangement supports an implement such that the implement is movable relative to a support member which is also movable relative to a structure, movement of the implement and support member being limited by mechanical and/or mechanically operated limits, the linkage mechanism enabling an increase in the ability to move and orientate the implement within a limit envelope. In a preferred form, a linkage arm (14) is pivotably mounted to a prime mover (12). At a distal end of the said first linkage arm (14) an orientation member (28) is pivotably attached, the orientation member being pivotably attached to a first limit actuating arm (30). The rotation of the first linkage arm (14) causes rotation of said orientation member (28). Said orientation member provides a base for the attachment of a further arm or implement. The further arm or implement is prevented contacting the prime mover by the limits provided by the orientation member (28). |
