Title:
ROTARY HOOK
Document Type and Number:
WIPO Patent Application WO/2022/111488
Kind Code:
A1
Abstract:
A rotary hook, comprising an outer hook frame (3) and an inner hook frame (11). A guide rail (12) arranged in the circumferential direction of the inner hook frame is provided on the outer side wall of the inner hook frame (11); the outer hook frame (3) comprises an outer hook body (31) and a pressing piece (2) connected to the outer hook body (31); the inner hook frame (11) is provided in the outer hook body (31); a guide groove (32) is provided on the inner side wall of the outer hook body (31); the guide rail (12) is slidably connected to the guide groove (32); the pressing piece (2) is used for limiting the position of the guide rail (12) into the guide groove (32); a thread hooking tip (33) is provided on the outer hook body (31); a thread receiving position (34) is provided on the thread hooking tip (33) in a recessed manner; the thread receiving position (34) is located below the guide groove (32). When the outer hook frame rotates relative to the inner hook frame, thread jamming is not easy, the working stability is good, the probability of the rotary hook failure is reduced, and the thread loosening efficiency is high.
Inventors:
FANG DUO (CN)
ZHOU YAOHUA (CN)
ZHOU YAOHUA (CN)
Application Number:
PCT/CN2021/132586
Publication Date:
June 02, 2022
Filing Date:
November 23, 2021
Export Citation:
Assignee:
ZHONGSHAN YINUOTE INTELLIGENT TECH CO LTD (CN)
International Classes:
D05B57/14
Foreign References:
| CN112442803A | 2021-03-05 | |||
| CN214088943U | 2021-08-31 | |||
| CN214088946U | 2021-08-31 | |||
| CN101033576A | 2007-09-12 | |||
| CN101084337A | 2007-12-05 | |||
| GB1098579A | 1968-01-10 | |||
| JPH08869A | 1996-01-09 | |||
| CN203846263U | 2014-09-24 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF:
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