Straight line motion mechanism
US4747353A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Oct 14, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16M2200/063
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A straight line motion mechanism is formed from a pair of parallelogram linkage mechanisms in combination with motion control means interconnecting the linkage mechanisms to provide for uniform angular displacement thereof. The mechanism is particularly adapted for use in supporting an object, such as a table top, for vertically directed stepwise movement or one step shifting between lower and upper reference positions corresponding to table top heights convenient for use alternatively by a person in seated and standing positions. In a preferred embodiment, means are provided to enable a user to selectively make fine adjustments of the height of the table top after it has been shifted into either of such lower and upper reference positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.