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:
May. 16, 1989
Filed:
Dec. 01, 1987
Noboru Inoue, Tokyo, JP;
Other;
Itoki Co., Ltd., both of, JP;
Abstract
An interlocking cushioning mechanism for supporting a seat portion and a backrest of a chair in an integrally movable fashion. This mechanism has a primary mounting member secured to an upright support for swivel movement about the vertical axis thereof, slots formed in a portion of the primary mounting member which is located near the upper end of the upright support; a subsidiary mounting member having one end extending upwardly toward the rear of the chair and the other end secured to the slots by means of a shaft; a resilient member such as a spring held between the shaft and the forward end of the primary mounting member so as to cause the shaft to move rearwardly within the slot; a seat portion mounting frame for carrying the seat portion; and a backrest frame secured to the rear of the subsidiary mounting member. The resilient member is mounted by means of a simple mounting structure and the resilient force of the resilient member is altered with a minimal effort.