Repeatable preset torquing force vise handle for producing repeatable clamping force in a vise
US6361442B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Jan 19, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B1/24
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A slender cylindrical torque-limiting handle for a machinist's vise is built along an internal shaft. A drive clutch with a distal end coupling engaging the vise shaft of a vise, and a proximal end presenting a multiple tooth inclined plane, is affixed to the shaft. A pressure clutch, fitted about the shaft, has a distal end multiple tooth inclined plane complimentary to, and mating with, the multiple tooth inclined plane of the drive clutch. A given rotational torque in a one rotational direction applied to the pressure clutch about the shaft will, in accordance with the extent to which the distal end of the pressure clutch is held pressured to the proximal end of the drive clutch, produce a correspondingly associated angular rotation of the drive clutch, tightening the vise until, at a preset torque, the pressure clutch will thereafter slip relative to the drive clutch. An adjustable mechanism based on variably compressed Belleville washers serves to adjustably force the pressure clutch into contact with the drive clutch. A handle graspable by the human hand is rotated so as to impart rotational torque to the mechanism and to the pressure clutch. The maximum torque transmitted to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.