Gripping or pressing tool
US4283933A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Oct 4, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R43/042
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool such as a pair of pliers, designed to handle cables, rods and similar workpieces of generally circular cross-section, has two coacting jaws swingably linked via respective shanks with operating means such as a pair of handles. The two shanks are limitedly relatively rotatable about a pivotal axis paralleling the swing axes of the jaws, each jaw comprising an elongate base with upstanding parallel webs transverse to the swing plane having workpiece-engaging faces alternately inclined in opposite directions with reference to that plane so as to form a channel around the workpiece in a working position. The relative motion of the shanks can be limited by an abutment or a link to establish a position of maximum jaw separation in which at least the webs closest to the pivotal axis still interengage to insure proper interfitting of all the webs upon the next return to the working position. Alternatively, or conjointly therewith, the separated jaws are resiliently biased against stops on their shanks holding their webs and interstices mutually aligned for interengagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.