| 摘要 |
A coupling system for connecting or attaching a working tool to the free end of a working arm. For example, a bucket, hammer, etc. can be easily attached to the end of an articulated arm on an excavator. The coupling system includes a fixed jaw and a movable jaw which is pivotable between open and closed positions. The movable jaw includes one or more tabs which extend through an opening in the coupler housing. Pins are used to lock the movable jaw in its closed position.
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