Patent · US Expired

Lockable elevating mechanism for the continuous adjustment of seats, table tops or similar items of furniture

US4979718A · kind A · utility

28Cited by
17References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 19, 1985
Grant dateDec 25, 1990
Priority date
Expiry dateJul 19, 2005

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA47C3/30
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

In a lockable elevating mechanism for the continuous adjustment of chair seats, table tops or the like, a guide sleeve (1), attachable to a pedestal (4), and a length-adjustable lockable gas spring (8) are proposed, the piston rod (10) of which is connected axially fixed but detachable with the bottom of the guide sleeve (1). The housing (9) of the gas spring (8) can be connected axially fixed, but basically detachable, with a chair seat or the like by means of an upper fastening segment (21) seated in corresponding collar (22). An activating rod (26) extends upwardly from the housing (9). In order to easily detach the gas spring (8) from the chair seat or the table top, the housing (9) of the gas spring (8) is disposed radially fixed in an additional tube (20) having the fastening segment (21), wherein one end of the housing (9) axially rests against a stop in the area of the fastening segment (21) and wherein the other end rests against a fastening element (24), detachably connected with the tube (20).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.