Tools – Tool jaw – Adjustable relationship between jaw
Patent
1998-06-25
2000-05-23
Smith, James G.
Tools
Tool jaw
Adjustable relationship between jaw
81341, 81355, B25B 704
Patent
active
060653760
ABSTRACT:
An auto-adjusting plier includes a first elongate member having a fixed jaw at one end, first elongate handle at the other end and a first neck portion. A second elongate handle has one end pivotally connected on the fixed jaw for pivotal movements. A second elongate member has a movable jaw at one end arranged in substantial opposition to the fixed jaw and another end mounted on the second elongate handle. An elongate link has one end pivotally mounted on a second neck portion of the second elongate member and the other end mounted for both pivotal and linear movements on the first elongate handle. Slots or channels are provided on the first neck portion for selectively guiding a stop pin mounted on the second neck portion and for selectively guiding the other end of the link generally linearly along a first predetermined length of the first handle. A third guide slot selectively guides the other end of the second elongate member generally linearly along a second predetermined length of said second handle. The stop pin is associated with the first guide slot or channel for selectively terminating continued generally linear movements of the stop pin along the first guide means after the jaws engage a work, the stop pin limiting continued relative movements of the second elongate member to pivoting movements of such member relative to said first elongate member. Springs urge the handles to normally separate when no gripping forces are applied to the handles and to normally maintain the other end of the link in the initial position of the second guide slot and the other end of the second elongate member at the initial position of the third guide slot before the jaws engage a work.
REFERENCES:
patent: 5176049 (1993-01-01), Neff
patent: 5351584 (1994-10-01), Warheit
patent: 5609080 (1997-03-01), Flavigny
Greenspan Myron
Olympia Industrial Inc.
Smith James G.
Thomas David B.
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