| 摘要 |
An office-type chair is provided with a base, a seat-back arrangement including a seat assembly which is vertically tiltable relative to the base and a back assembly which is vertically tiltable relative to both the seat assembly and base, and a tilt control mechanism operatively coupled between the base and the seat-back arrangement for permitting the back assembly and seat assembly to be respectively rearwardly and downwardly tilted away from an upright position in a synchronous but differential rate. A front tilt control device is associated with and interconnected with the tilt control mechanism for permitting the seat and back assemblies to be synchronously and nondifferentially tilted forwardly away from the upright position.
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