| 摘要 |
An assembly or reset gear device, typically used with ratchet wrenches, that has a body and at least two pawls pivotally attached to it and another part that has teeth that engage with the second pawl's teeth. The device that acts as an anvil has one body that is fixed to the head of a ratchet tool, while a second body can selectively rotate within the head. The second body also has two pawls, the second of which can selectively engage with the fixed first body. A pneumatic ratchet tool that employs such a device and a method of using the same is also disclosed.
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