Patent · US Expired

Pliers-type hand tool

US4829858A · kind A · utility

46Cited by

2References

12Claims

0Family size

Assignee

SWG Schraubenwerk Gaisbach GmbH & Co. KG · DE

Inventors

Peter Kern · Salem, DE
Gerhard Bayer · Stuttgart, DE
Johannes Solf · Sindelfingen, DE

Key dates

Filing date	Jun 9, 1988
Grant date	May 16, 1989
Priority date	—
Expiry date	Jun 9, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25G1/12
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In order to ergonomically optimize the hand side of combination pliers, whose gripping arms in each case form a mouth jaw on their ends and are in operative connection by means of a joint in such a way that in the case of different activities with the pliers the adaptation of the gripping arms to the anatomy and anthropometry of the human hand is retained, it is proposed that the gripping arms face one another elliptically in the plane thereof and that in the vicinity of the coupling surface to the hand the gripping arms have an elliptical cross-section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.