Title:
INTERNALLY ROTATABLE SEWING DEVICE INCLUDING CRESCENT HOOK
Document Type and Number:
WIPO Patent Application WO/2021/242084
Kind Code:
A1
Abstract:
The present invention relates to an internally rotatable sewing device including a crescent hook, the sewing device comprising: a housing part having an open one side and formed in a hollow cylindrical shape; a gear part seated at a side opposite to the open one side of the housing part and rotated by rotation power transferred from a driving shaft; a power transfer part received in the housing part and rotated by rotation power transferred from the gear part; a hook body part which is received in the housing part while being closer to the open one side of the housing part than to the power transfer part and is rotated by rotation power transferred from the power transfer part, the hook body part including a ring-shaped hook which catches an upper thread, wherein a lower thread receiving space is formed in the hook body part in a direction identical to the direction in which the housing part is open, and the lower thread received in the lower thread receiving space is configured to be discharged between the hook body part and the power transfer part and caught by the upper thread.
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Inventors:
SIM YONG-KUN (KR)
Application Number:
PCT/KR2021/095062
Publication Date:
December 02, 2021
Filing Date:
May 26, 2021
Export Citation:
Assignee:
CRESCENT HOOK INC (KR)
International Classes:
D05B57/14; D05B59/00
Foreign References:
| KR20190105315A | 2019-09-17 | |||
| KR101253280B1 | 2013-04-10 | |||
| KR101967640B1 | 2019-04-10 | |||
| JP3814276B2 | 2006-08-23 | |||
| KR101395267B1 | 2014-05-27 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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