Reversible ratchet wrench

Details Reversible ratchet wrench Reversible ratchet wrench

2007-10-09

2007-10-09

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S063000

Reexamination Certificate

active

11550495

ABSTRACT:
A reversible ratchet wrench includes a handle from which a head extends. The head includes a compartment and a receiving hole in communication with the compartment. A drive member is rotatably mounted in the compartment and a pawl is slidably mounted in the compartment. A ring is mounted in the compartment and around an end of the drive member. A reversing plate is pivotably mounted to the end of the drive member and operatively connected to the ring to turn therewith. A switching member is pivotably mounted in the receiving hole of the head. The switching member is operatively connected to a tip piece of the ring to turn therewith. The switching member is operatively connected to the pawl to move the pawl for changing a driving rotating direction of the reversible ratchet wrench when the reversing plate is moved between two positions corresponding to two opposite driving rotating directions.

REFERENCES:
patent: 6431031 (2002-08-01), Hu
patent: 6457387 (2002-10-01), Hu
patent: 6568299 (2003-05-01), Hu
patent: 6955104 (2005-10-01), Hu

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