Title:
LUMBAR SUPPORT DEVICE FOR CHAIR
Document Type and Number:
Japanese Patent JP2019198518
Kind Code:
A
Abstract:
To provide a lumbar support device which is compact and excellent in cushion property.SOLUTION: A lumbar support device 23 comprises: a base pat 24 attached to a side member 8 of a back frame 7; and a body support part 25 integrated to a lower end of the base part 24. The body support part 25 comprises: a pad part 26 which contact the back plate 11 from a rear side; and an intermediate part 27 for coupling the pad part 26 and the base part 24, the tip end part of the intermediate part 27 is a curve part 27a which can be elastically deformed. Therefore, the body support part 25 is formed into a collapsed C-shape in plan view. A rear surface of the intermediate part 27 has a knob part 28 which is protruded rearward. Since the curve part 27a is deformed by body pressure, excellent cushion property is acquired. In addition, the pad part 26 can be easily made to come close to a side member 8.SELECTED DRAWING: Figure 6
Inventors:
USUMOTO HIROTO
Application Number:
JP2018095323A
Publication Date:
November 21, 2019
Filing Date:
May 17, 2018
Export Citation:
Assignee:
ITOKI CORP
International Classes:
A47C7/46; B60N2/66
Domestic Patent References:
| JP2009095465A | 2009-05-07 | |||
| JP2018068980A | 2018-05-10 | |||
| JP2017140386A | 2017-08-17 | |||
| JP2011103932A | 2011-06-02 |
Foreign References:
| WO2011117937A1 | 2011-09-29 |
Attorney, Agent or Firm:
Hiroyuki Nishi
Ryuichi Watanabe
Ryuichi Watanabe