Articulated fitting for seats with adjustable backrest in partic

Machine element or mechanism – Control lever and linkage systems – Elements

Patent

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Details

297362, B60N 222

Patent

active

056343809

ABSTRACT:
The articulated fitting has a stationary articulated part associated with the seat part and a swivelable articulated part associated with the backrest. These articulated parts are connected with one another via an adjusting shaft. An adjusting and locking device which is constructed as a gear unit and determines the position of the two articulated parts relative to one another is provided. The adjusting shaft has an eccentric portion for supporting one articulated part, this eccentric portion being formed by two wedge segments which are inclined relative to one another and engage regions of a driver of the adjusting shaft, by a driver arm engaging between the narrow sides of the wedge segments, and by a torsion spring which spreads apart the broad sides of the wedge segments with its spring legs. Therefore, the invention minimizes the play occurring between the driver arm and wedge segments as a result of operation and manufacture.

REFERENCES:
patent: 5005907 (1991-04-01), Caillol
patent: 5154475 (1992-10-01), Kafitz
patent: 5312158 (1994-05-01), Wittig et al.
patent: 5438732 (1995-08-01), Engels et al.

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