Invention Grant
US09120211B2 Ratchet wrench capable of being operated through relatively smaller minimum swing angle action
有权
棘轮扳手能够通过相对较小的最小摆动角度动作操作
- Patent Title: Ratchet wrench capable of being operated through relatively smaller minimum swing angle action
- Patent Title (中): 棘轮扳手能够通过相对较小的最小摆动角度动作操作
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Application No.: US13744490Application Date: 2013-01-18
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Publication No.: US09120211B2Publication Date: 2015-09-01
- Inventor: Ping-Wen Huang
- Applicant: New Way Tools Co., Ltd.
- Applicant Address: TW Taichung
- Assignee: New Way Tools Co., Ltd.
- Current Assignee: New Way Tools Co., Ltd.
- Current Assignee Address: TW Taichung
- Agency: Kamrath IP Lawfirm, P.A.
- Agent Alan D. Kamrath
- Priority: TW101113215A 20120413
- Main IPC: B25B13/46
- IPC: B25B13/46 ; B25B13/48
Abstract:
A ratchet wrench includes a head. A gear wheel, a first pawl, and a second pawl are disposed in a chamber defined in the head. The gear wheel has an outer periphery thereof including a plurality of teeth extended circumferentially outwardly therefrom. The first and second pawls each include a lateral side thereof including third and fourth plurality of teeth respectively extended outwardly therefrom. The first and second pawls are disposed one above the other. The first and second pawls are respectively biased by first and second biasing mechanisms. The first and second pawls are alternatively engaged with the gear wheel when it is operably turned.
Public/Granted literature
- US20130269488A1 Ratchet Wrench Capable of Being Operated Through Relatively Smaller Minimum Swing Angle Action Public/Granted day:2013-10-17
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