CHAIR ADJUSTMENT STRUCTURE
First Claim
Patent Images
1. A chair adjustment structure comprising:
- a base member;
a top cover disposed at a top side relative to said base member and having a middle part thereof pivotally connected to said base member;
a spring member mounted to said base member and having a top end stopped against said top cover; and
a back bracket having two sidewalls, each of which has a first extension portion disposed at one lateral side of said base member, a second extension portion obliquely upwardly extending from said first extension portion, a first pivot portion located on one end of said first extension portion and pivotally connected to said base member, and a second pivot portion located on said first extension portion adjacent to said second extension portion and pivotally connected to said top cover.
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Accused Products
Abstract
A chair adjustment structure includes a base member, a top cover pivotally connected to the base member, a spring member connected between the base member and the top cover, and a back bracket pivotally connected to the base member and the top cover. Therefore, when the user sits on the seat pad of the chair, the back bracket is forced to pivot the top cover to provide the user with sitting comfort.
21 Citations
8 Claims
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1. A chair adjustment structure comprising:
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a base member; a top cover disposed at a top side relative to said base member and having a middle part thereof pivotally connected to said base member; a spring member mounted to said base member and having a top end stopped against said top cover; and a back bracket having two sidewalls, each of which has a first extension portion disposed at one lateral side of said base member, a second extension portion obliquely upwardly extending from said first extension portion, a first pivot portion located on one end of said first extension portion and pivotally connected to said base member, and a second pivot portion located on said first extension portion adjacent to said second extension portion and pivotally connected to said top cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification