发明名称 |
Pliers with flush joint bias spring |
摘要 |
A slip-joint pliers has crossed pivoting levers joined at pivot portions thereof by a flat-sided bolt extending through openings in the levers and engaged with a nut, one of the openings being elongated and generally dumbbell-shaped to accommodate the slip-joint movement. The pivot portions of the levers have flat facing inner surfaces, in each of which is formed a single-level spring recess surrounding the associated opening, each recess having a peripheral side wall and a flat planar bottom wall extending from the side wall to the associated opening. A helical torsion spring is seated in the recesses and encircles the bolt and has tangent ends respectively engageable with straight bearing portions of the recesses.
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申请公布号 |
US5904078(A) |
申请公布日期 |
1999.05.18 |
申请号 |
US19970901172 |
申请日期 |
1997.07.28 |
申请人 |
SNAP-ON TECHNOLOGIES, INC. |
发明人 |
GUSTAFSON, ERIC T.;THOMPSON, CHRISTOPHER D. |
分类号 |
B25B7/10;(IPC1-7):B25B7/06 |
主分类号 |
B25B7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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