Double-headed ratchet wrench assembly

Details Double-headed ratchet wrench assembly Double-headed ratchet wrench assembly

1996-10-22

1998-06-09

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

8117785, B25B 1346

Patent

active

057619735

ABSTRACT:
A double-headed wrench assembly includes an upper pressing member with a first driving head and a lower pressing member with a second driving head mounted on upperside and underside of a wrench body respectively. An upper thrust rod has an upper portion slidably mounted in the first driving head and a lower portion with a first enlarged head. A lower thrust rod has a lower portion slidably mounted in the second driving head and an upper portion with a second enlarged head abutting on the first enlarged head. A first biasing member is urged between a lower portion of the upper pressing member and the first enlarged head and a second biasing member is urged between an upper portion of the lower pressing member and the second enlarged head. A first ball is slidably retained in a first detent recess defined in the first driving head and is detachably received in a first cavity defined the upper thrust rod. A second ball is slidably retained in a second socket detent recess defined in the second driving head and is detachably received in a second cavity defined in the lower thrust rod.

REFERENCES:
patent: 2803980 (1957-08-01), Vogel
patent: 4245528 (1981-01-01), Hugh et al.

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