Office chair
AssigneeHerman Miller, Inc.
InventorsDouglas M. VanDeRiet, Jeffrey R. Oberlin, Jason W. Carpenter, Jeff Weber
Life of this patent
Estimating the term…
Abstract
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.
Claims42
A chair comprising:
- a first member;
- a second member pivotally attached to said first member;
- and a third member pivotally attached to said first member and pivotally and slidably attached to said second member, wherein said second member comprises an axle and said third member comprises a slot with an open end, said axle being received in said slot through said open end.
A chair comprising:
- a main spring biasing a back from a reclined position to an upright position and an assist spring biasing said back from said reclined position to an intermediate position.
A chair comprising:
- a seat a chair stem assembly attached to a bottom of said seat, a cylinder installed within said chair stem assembly comprising a valve pin moveable from side-to-side, and an actuating member having an interior cavity wherein said valve pin is received into said interior cavity.
A chair comprising:
- a main spring biasing a back from a reclined position to an upright position and an assist spring biasing said back from said reclined position to an intermediate position, wherein said assist spring is a compression spring uncompressed from said upright position to said intermediate position and compressed from said intermediate position to said reclined position.
Dependencies are inferred from the claim text.