The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2002
Filed:
Jul. 07, 2000
Ken A. Beggs, Waterloo, CA;
Leggett & Platt Ltd., Waterloo, CA;
Abstract
A chair seat tilt mechanism includes a main frame for mounting to a spindle, a seat plate to which a chair seat may be mounted, a back bracket to which a chair back may be mounted, and first link arms. The first link arms are pivotally mounted at one end to the main frame by way of a main frame pivot and at another end to the rear of the seat plate by way of a rearward pivot. The back bracket is pivotally mounted near its front end to the main frame by way of a forward pivot and is further pivotally mounted to the seat plate at a medial pivot which is between the forward pivot and the rearward pivot. When assembled into a chair, if a chair occupant leans back against the chair back, the back bracket pivots about the forward pivot causing the medial pivot to move downwardly. This in turn causes the seat plate to pivot about the rearward pivot and results in a forward tilting of the chair seat. The first link arms may be capable of limited vertical translation such that when an overriding downward force is applied to the front of the chair seat, the seat plate pivots about the medial pivot to forwardly tilt the chair seat without backwardly tilting the chair back.