Title:
COLUMN UNIT FOR CHAIR
Document Type and Number:
WIPO Patent Application WO/2012/148167
Kind Code:
A2
Abstract:
The present invention relates to a column unit for a chair, wherein the column unit for a chair is compact and can improve durability against lateral forces. The present invention relates to a column unit for a chair, in which the height thereof is controlled by upward and downward movements of a spindle assembly,
wherein the column unit comprises: an outer pipe comprising an inclined portion of which the diameter gradually becomes larger as it approaches a front end thereof; an inner pipe which is inserted into the outer pipe to form a space portion between the inclined portion and the inner pipe; and a spindle guide which is inserted into the inner pipe to guide the upward and downward movements of the spindle assembly.
Inventors:
KIM EUN HA (KR)
LEE KI CHEOL (KR)
LEE KI CHEOL (KR)
Application Number:
PCT/KR2012/003187
Publication Date:
November 01, 2012
Filing Date:
April 25, 2012
Export Citation:
Assignee:
SAMHONGSA CO LTD (KR)
KIM EUN HA (KR)
LEE KI CHEOL (KR)
KIM EUN HA (KR)
LEE KI CHEOL (KR)
International Classes:
A47C3/30; F16F9/02
Foreign References:
| KR20070117230A | 2007-12-12 | |||
| KR200379956Y1 | 2005-03-28 | |||
| KR200226715Y1 | ||||
| JP2011052732A | 2011-03-17 |
Attorney, Agent or Firm:
SESHIN PATENT & LAW FIRM (KR)
특허법인 세신 (KR)
특허법인 세신 (KR)
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Claims: