| 摘要 |
The device connects a first shaft having a respective first axis, and a second shaft having a respective second axis located a given distance from and parallel to the first axis, and has an arm integral with the first shaft, and a pocket located along the second axis of the second shaft and engaged by a distal end of the arm. The device has a body fitted to the second shaft and having a peripheral portion in which the pocket is formed, and a recess is formed close to the pocket to permit access to the pocket by the distal end.
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