Pliers with ergonomic handles

Details Pliers with ergonomic handles Pliers with ergonomic handles

1999-05-12

2000-10-24

Scherbel, David A.

Tools

Tool jaw

Handle

81489, 16110R, B25B 702

Patent

active

061349941

ABSTRACT:
Pliers comprise two branches having an area forming a handle rigid with the branch and having, at least in a proximal part, a cross section whose profile is convex or essentially convex. The branches are pivoted to each other in a region including a coupler and extend beyond the coupler to define jaws. Each handle has, at least in its proximal part, a cross section which has, relative to its mid-line which is parallel to a median plane of the coupler, an asymmetric external profile with a shape which dips more sharply toward one side of the handle. In plan view, in the proximal part of each handle, the geometrical locus of the mid-points of segments perpendicular to the median plane forms a curve whose convex side is directed toward the aforementioned one side of the handle. Applications include gripping pliers such as flat-nose or round-nose pliers, universal pliers and adjustable pliers.

REFERENCES:
patent: 4829858 (1989-05-01), Kern et al.
patent: 4934222 (1990-06-01), Rittmann et al.
patent: 5119561 (1992-06-01), Olds
patent: 5279034 (1994-01-01), Smith et al.
patent: 5463814 (1995-11-01), Stowell et al.
American Machinist, Slip-Joint Pliers, p. 123, Dec. 1949.

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