Tilting chair, especially office chair

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4763950
SERIAL NO

06946192

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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To permit backward rocking of the back or back-and-seat of a chair, independently of the previously tilted-back position of the chair, a comfort position memory structure is provided which includes a manually adjustable variable stop structure formed by a cam curve (37) with a serrated or toothed surface, engaged by a stop element (41) coupled to the seat (17, 19). The cam (37) is manually rotatable, by being secured to an externally user-accessible adjustment segment (45). To set a predetermined tilted position, the user tilts back on the chair, and then permits the chair to tilt forward to a comfortable position, and then rotates the manually engageable segment (45) until a tooth (39) of the cam disk (37) is engaged by the stop (41). A spring (32) biasses the chair forwardly and against the stop, unless tilted back by the user.

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First Claim

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Family

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Patent Owner(s)

  • PROVENDA MARKETING AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tobler, Peter Rheineck, CH 5 141

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