Folding knife with moveable pivot axis
US5495674A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1994 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | Jun 24, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B1/048
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife having a casing and a blade pivotally mounted thereto includes a user actuated button slidably mounted to the casing for producing movement of the blade between fully open and closed terminal positions. The button is disposed on the end of an elongated shaft which fully extends through a spring, pawl, casing, and a blade. The spring and pawl are respectively positioned adjacent the button and between the outwardly facing surface of the casing and the spring. The pawl includes a legged portion which extends into the casing and is fixedly attached to the blade. The pawl is further operatively positioned in relation to a plurality of bosses extending upwardly in longitudinal linear relation from the outwardly facing surface of the casing. As a user slides the button in a predetermined direction, the pawl correspondingly slides and rotates about each successive boss. The sliding, rotating motion of the pawl is directly transferred to the blade, thereby moving the blade between its terminal positions. The elongated shaft further includes a flanged end positioned opposite the user actuated button. The flanged end lockingly engages in one of a plurality of detents thereby locking …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.