Supports – Stand – Tilting support surface
Patent
1986-04-23
1986-12-30
Britts, Ramon S.
Supports
Stand
Tilting support surface
248398, 248422, F16M 1124
Patent
active
046323538
ABSTRACT:
Elevation adjustment device primarily for vehicle seats. The seat comprises a frame (1) with an upper part (2, 4, 5) with seat surfaces and a lower part (6), which is supported by the vehicle, and a mechanism (9), which connects the upper part and the lower part. The mechanism (9) comprises a number of gear wheels (14, 16), which are lodged in the one of the parts and on the other part corresponding cog tracks (12, 13) with their longitudinal direction extending in the adjustment direction. Through the rotation of the gear wheels is achieved motion along the corresponding cog track and thus changed elevational position among the parts. Adjacent to the respective gear wheel (14, 16) is disposed an additional cog track (23, 25) in an opposedly directed position in relation to the respective first mentioned cog track. The additional cog tracks are moveable into and out of engagement with the respective gear wheel. An operating device (42) is adapted to bring the cog tracks into and out of engagement with the respective gear wheel. Hereby each of the gear wheels can be released for unrolling along its first mentioned cog track, when the additional cog track is located out of engagement, alternatively be locked against rotation, when the additional cog track is located in engagement.
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Britts Ramon S.
Broderna Hammarstedt Verkstads AB
Purol David M.
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