Tools – Wrench – screwdriver – or driver therefor – Slidable jaw adjustments
Patent
1996-09-20
1999-01-26
Scherbel, David A.
Tools
Wrench, screwdriver, or driver therefor
Slidable jaw adjustments
81175, 81DIG5, B25B 1316
Patent
active
058627227
ABSTRACT:
An adjustable wrench has a slotted body member and a handle threaded into a bore in a body member stem and protruding into one end of the slot. A movable jaw piece is rotatably mounted to the protruding handle end and slidable in the slot. A pair of angled fixed jaw faces is formed at the far end of the slot, while corresponding jaw faces are formed on the movable jaw piece. Relative rotation of the handle and body member causes relative advance or retraction of the movable jaw piece in the slot to adjust the spacing between the sets of jaw faces to fit the wrench to bolt heads or nuts of various sizes. The structural support afforded by the handle-movable jaw piece connection enables low cost construction and compact structure allowing greater accessibility to recessed bolt heads and nuts. A locking rod extends within the handle in some embodiments, with a locking knob at the remote handle able to be tightened to hold an adjusted position. Unlike other wrenches, the extended handle provides for more precise remote jaw adjustment and allows for simultaneous jaw adjustment of the handle and locking knob by a one-hand overlapping hand grip. The jaw faces are inclined from being perpendicular to the longitudinal axis of the handle to angle the handle slightly and provide more hand clearance.
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Benefiel John R.
Danganan Joni B.
Scherbel David A.
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