Linear device for rapidly adjusting and immobilizing a movable part relative to a fixed part
US4799734A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1987 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Oct 13, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/741
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This device comprises at least one pair of screw-and-nut elements cooperative with the fixed and movable parts in respect of which elements the screw angle is large enough to ensure that the efficiency of the translation to the rotation is slightly positive, and is provided with means for locking the rotary element of the pair after adjustment of the position of the movable part. This system permits the locking of the movable part in the chosen position by a relatively small force as compared to the forces to which the device is subjected. The device is useful for adjusting a table guide of a woodworking machine, or for adjusting a car seat or the seat of a stool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.