Title:
FABRIC OF CORDLESS DOUBLE BLIND AND DEVICE FOR PREVENTING BENDING OF LOWER ROTATING BAR
Document Type and Number:
WIPO Patent Application WO/2021/010553
Kind Code:
A1
Abstract:
The present invention relates to fabric of a cordless double blind and a device for preventing bending of a lower rotating bar. More specifically, while a lower case is moved downward by the force of a handle part being pulled, a pair of rollers and a lower rotating bar are rotated. The rollers having a smaller diameter than the lower rotating bar prevent the lower rotating bar from rising and at the same time offset the load while rotating in close contact with double fabric, and thus prevent bending of the lower rotating bar or wrinkling of the double fabric.
Inventors:
KWAK JAE-SUK (KR)
KWAK WOO-JIN (KR)
KWAK WOO-JIN (KR)
Application Number:
PCT/KR2019/018178
Publication Date:
January 21, 2021
Filing Date:
December 20, 2019
Export Citation:
Assignee:
KWAK JAE SUK (KR)
International Classes:
E06B9/44; E06B9/66; E06B9/80
Foreign References:
| KR20160112238A | 2016-09-28 | |||
| JP3765996B2 | 2006-04-12 | |||
| JP2010001656A | 2010-01-07 | |||
| KR101884524B1 | 2018-08-01 | |||
| KR101048674B1 | 2011-07-12 |
Attorney, Agent or Firm:
KIM, Myung Han (KR)
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