Adjusting device for vehicle seats
US4611778A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1985 |
| Grant date | Sep 16, 1986 |
| Priority date | — |
| Expiry date | May 23, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H25/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an adjusting device for vehicle seats having a threaded spindle (4) and a spindle nut arranged thereon, each of which is connected in an axially immovable manner with one or the other of elements (1, 2) to be adjusted relative to each other. The spindle nut (13) is provided with a full-length (or continuous) channel (20) running parallel to the threaded bore which receives the threaded spindle (4), which channel receives a bar (22) which prevents a rotation of the spindle nut (13) about the longitudinal axis of its threaded bore. The opposing boundary surfaces (21) of the channel (20), which cooperate with the bar (22) are spaced from each other such that at the midpoint of the channel (20) the space is equal to the bar thickness and uniformly increases toward the two ends of the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.