Structure for attaching spring

Details Structure for attaching spring Structure for attaching spring

2006-11-09

2008-10-14

White, Rodney B. (Department: 3636)

Chairs and seats

Back movement resiliently opposed in operating position

Back secured to resilient upright bar or rod

C297S354110

Reexamination Certificate

active

07434879

ABSTRACT:
A structure for attaching a frame-like spring being capable of effectively reducing the number of parts, is provided. According to this structure, a reaction force frame element which is a frame-like spring is attached via a lower frame portion and an upper frame portion so that pressurization is always provided in the movable range and the pressurization becomes the lowest at a predetermined position of a normal posture. Specifically, when the a reaction force frame element is made into the attaching preparation posture that the elastic repulsive forces are accumulated rather than a normal posture, the upper attaching portions include insertion portions for allowing insertion of lower ends and engagement portions to be engaged to the lower end portions due to an elastic repulsive force when the external force is released.

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European Search Report dated Jan. 30, 2007 issued in corresponding European Application No. 06 12 3875.

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