Multi-task mid-pivot chair control mechanism
First Claim
1. A back pivot arrangement for a chair control mechanism adapted for use in a chair having a seat, a back, and a seat support member, wherein the chair control mechanism includes a base member secured to the seat support member and a seat mounting member pivotally interconnected with the base member, comprising:
- a back mounting member, wherein the back is adapted to be mounted to the back mounting member;
a back pivot connection interposed between the back mounting member and the seat support member;
a biasing arrangement interposed between the back mounting member and the seat mounting member for biasing the back forwardly relative to the seat; and
a selectively engageable variable position back locking arrangement interposed between the seat mounting member and the back mounting member, wherein the back locking arrangement includes a variable position engagement arrangement, said variable position engagement arrangement comprising a plurality of spaced openings formed in the forward section of the back mounting member, and a movable engagement member movably mounted to the seat support member, wherein engagement of the engagement member within one of the plurality of spaced openings functions to place the variable position engagement arrangement in one of a plurality of engaged positions.
1 Assignment
0 Petitions
Accused Products
Abstract
A chair control mechanism for positioning between the seat and seat support of a chair. The chair control mechanism includes a base section for mounting to a seat support such as an adjustable height cylinder, and a seat mounting section pivotally interconnected with the base section. A seat is mounted to the seat mounting section, and is pivotal about a seat pivot axis. An adjustable position back mounting arrangement is pivotally interconnected with the seat mounting section, and the chair back is engageable with the back mounting section. A variable stop arrangement is interposed between the base section and the seat mounting section, for varying the range of pivoting movement of the seat relative to the seat support. The back can be selectively locked in one of a number of predetermined positions relative to the seat by operation of a variable position back locking arrangement.
71 Citations
5 Claims
-
1. A back pivot arrangement for a chair control mechanism adapted for use in a chair having a seat, a back, and a seat support member, wherein the chair control mechanism includes a base member secured to the seat support member and a seat mounting member pivotally interconnected with the base member, comprising:
-
a back mounting member, wherein the back is adapted to be mounted to the back mounting member;
a back pivot connection interposed between the back mounting member and the seat support member;
a biasing arrangement interposed between the back mounting member and the seat mounting member for biasing the back forwardly relative to the seat; and
a selectively engageable variable position back locking arrangement interposed between the seat mounting member and the back mounting member, wherein the back locking arrangement includes a variable position engagement arrangement, said variable position engagement arrangement comprising a plurality of spaced openings formed in the forward section of the back mounting member, and a movable engagement member movably mounted to the seat support member, wherein engagement of the engagement member within one of the plurality of spaced openings functions to place the variable position engagement arrangement in one of a plurality of engaged positions. - View Dependent Claims (2, 3, 4, 5)
-
Specification