Office chair

Details Office chair Office chair

A - Human Necessities

47

C

A47C 1/024 (2006.01) A47C 7/34 (2006.01) A47C 7/35 (2006.01) A47C 7/54 (2006.01)

Patent

CA 2310349

A chair with a reclining system that allows the back and seat to recline at different angles. The chair is provided with a first member, a second member, and a third member. The first member is pivotally attached to the second member and the third member, while the second member and the third member are pivotally and slidably attached together. The second member comprises an axle, which extends across the width of the third member, that is installed into open slots in the third member, thereby providing the pivotal and slidable connection. Assist springs and a height adjustment system is also provided. A method of installing a spring into a chair and a chair with a preload member that prevents a user from removing an initial stress from the spring. The method includes positioning a spring guide in a first position and installing the spring into the chair in an unstressed state. The spring is then stressed by adjusting the spring guide away from the first position. When the spring has been stressed to at least the desired initial stress, the preload member is positioned to prevent the spring guide from being adjusted back to the first position. A modular arm rest system for a chair. The arm rest includes a connecting member that is installed into an interior cavity in the chair frame and is retained by a nose. A back is also provided with an arm rest hole that the connecting member can be installed through, thereby securing the back to the chair frame. The modular system includes a reclining chair and a four-legged stacker chair with arm rests and plugs so that the chairs can be reconfigured as desired by the user. A fabric seat for a chair and a method and machine for manufacturing the fabric seat. The fabric seat comprises a seat frame that supports the outer circumference of a fabric material. The seat frame comprises grasping members that secure the fabric to the seat frame and retain the desired stretch in the fabric. The grasping members can be teeth. A cover is also provided, which is snapped onto the circumference of the seat frame, to trap the fabric and protect the user from the grasping members.

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