METHOD FOR DESIGNING BACKREST MOVEMENT MECHANISM AND BACKREST MOVEMENT MECHANISM DESIGNED USING SAME

Title:

METHOD FOR DESIGNING BACKREST MOVEMENT MECHANISM AND BACKREST MOVEMENT MECHANISM DESIGNED USING SAME

Document Type and Number:

WIPO Patent Application WO/2016/101657

Kind Code:

A1

Abstract:

Disclosed are a method for designing a backrest movement mechanism and a backrest movement mechanism designed using the method. The method is implemented by analysing the movement trail of a point A, which bears the largest body pressure, on the human spine. The backrest movement mechanism comprises an upper frame (1) and a backrest frame (2), and further comprises a backrest connecting mechanism (3), wherein a movement track is provided on the backrest connecting mechanism (3), and the backrest frame (2) is movably connected with the upper frame (1) via the backrest connecting mechanism (3) and moves along the movement track relative to the upper frame (1). The backrest movement mechanism changes the motion between the backrest and a seat cushion from a revolute pair to a sliding pair such that a mechanical rotating point between the backrest and the seat cushion is as close as possible to a rotating point of the human body, so that when the backrest angle is adjusted, the back of the human body can be comfortably in contact with the backrest, and accordingly the relative displacement caused by the relative motion between the back of the user and the backrest can be minimized, so as to minimize the "back rubbing sensation", thereby giving the user the most comfortable experience.

Inventors:

HE PENG (CN)
GUAN MINGWANG (CN)

Application Number:

PCT/CN2015/089567

Publication Date:

June 30, 2016

Filing Date:

September 15, 2015

Export Citation:

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Assignee:

SILVER FOX BEAUTY INSTR CO LTD (CN)

International Classes:

A47C1/024; A47C7/40

Foreign References:

CN104545063A	2015-04-29
CN2557014Y	2003-06-25
US4372608A	1983-02-08
CN101513377A	2009-08-26
CN201977234U	2011-09-21
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CN102160716A	2011-08-24

Other References: