Title:
LOWER THREAD WINDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/146344
Kind Code:
A1
Abstract:
Provided is a lower thread winding device with which it is possible for a user to adjust a winding amount of a lower thread wound on a bobbin. The lower thread winding device 5 is provided with a motor 20, a sensor lever 30, a contact 40, and a lever 60. The motor 20 rotates a thread winding spindle 10 on which a bobbin 9 is installed. The sensor lever 30 is provided with a contacting portion 32 capable of coming into contact with the lower thread wound on the bobbin 9, and a cam piece 35. The contact 40 is provided with a pin 42 which comes into contact with the cam piece 35. The contact 40 rotates between a first position in which the pin 42 is in contact with a first outer peripheral portion 36 of the cam piece 35, and a second position in which the pin 42 is in contact with a second outer peripheral portion 37 of the cam piece 35. The lever 60 is capable of changing a specific contacting position of the pin 42. The specific contacting position is a position at which the pin 42 of the contact 40, when in the first position, contacts the first outer peripheral portion 36.
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Inventors:
UEDA DAISUKE (JP)
KAWAMOTO NAOKI (JP)
FUNATO NOBUHIKO (JP)
KAWAMOTO NAOKI (JP)
FUNATO NOBUHIKO (JP)
Application Number:
PCT/JP2018/047488
Publication Date:
August 01, 2019
Filing Date:
December 25, 2018
Export Citation:
Assignee:
BROTHER IND LTD (JP)
International Classes:
D05B59/00
Foreign References:
| JP2002066184A | 2002-03-05 | |||
| JP2017131436A | 2017-08-03 |
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