| 摘要 |
The coupler includes an operating arm attachment device (25) including a pair of spaced parallel shafts (23,24) journalled horizontally on the operating arm stick and operating cylinder respectively. Two link arms (26) are journalled at the shaft ends and are each extended to form a free abutment portion (36). An implement attachment device (20) includes a locking device (11,21) which exerts pressure on the abutment portions, to move the link arms towards a coupling device (4), through wedge and lever cooperation of the abutment portions with counter members (16,39). The operating arm attachment device is thus pressed against the coupling device to produce a permanent and play-free joint between the implement and arm. |
