Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BACKREST, CHAIR, AND METHOD FOR RECEIVING SITTER'S BACK
Document Type and Number:
Japanese Patent JP2018110633
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a chair and the like that reduces fatigue of a sitter during seating while holding a posture hardly becoming a stoop posture.SOLUTION: A first aspect of the present invention is in a backrest characterized in that it includes a backrest part for receiving a sitter's back and a pivot which pivotally supports near an upper side of the backrest and which makes a lower part of the backrest freely rock in a longitudinal direction, and in that, with a relative positional relation between a seat part and the pivot roughly constantly maintained, and with the lower part of the backrest longitudinally rocking, sway of the sitter during seating is followed. A second aspect of the present invention is in the backrest as in claim 1 characterized in that the lower part of the backrest follows up the sway of the sitter during the seating by means of elasticity. A third aspect of the present invention is in the backrest as in claim 1 characterized in that, by the elasticity of two or more different elastic forces, the lower part of the backrest gradually sways.SELECTED DRAWING: Figure 19

Inventors:
河津 卓
Application Number:
JP2017001462A
Publication Date:
July 19, 2018
Filing Date:
January 06, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
河津 卓
International Classes:
A47C7/44
Domestic Patent References:
JP2016016059A2016-02-01
JP2006149681A2006-06-15
JPH02206405A1990-08-16
JPH04193107A1992-07-13
Foreign References:
US20050151400A12005-07-14
Attorney, Agent or Firm:
立石 琢也