Title:
SAFETY DEVICE IN OVER-EDGE CHAIN-STITCH SEWING MACHINE
Document Type and Number:
Japanese Patent JP3633676
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To do a threading work or inspection work with a sense of security by a method wherein when a louver cover is opened to pass a string through a louver or to do an inspection or adjustment of the louver, electricity to a drive control circuit of a motor for driving a sewing machine is turned off.
SOLUTION: If a cloth table 10 of a sewing machine (or louver cover 12) is opened, a first operation axis 14 is moved to the right by the action of a spring 18 mounted to an axial part of the axis 14 and an operation arm 24 provided on the axis 14 moves in the axial direction of the axis 14 so as to be spaced apart from a microswitch 23. As a result, an OFF signal is outputted from the microswitch and a drive stop signal is outputted from a motor drive circuit to stop a sewing machine motor. It is indicated by a stop state indicating means based on the OFF signal that the cover is opened so that the motor is stopped. When the table 10 or the louver 12 is in an opened state, the sewing machine can not be operated.
Inventors:
Miwa Ebata
Eiichi Shomura
Masayoshi Takahashi
Eiichi Shomura
Masayoshi Takahashi
Application Number:
JP21285295A
Publication Date:
March 30, 2005
Filing Date:
July 28, 1995
Export Citation:
Assignee:
Janome Sewing Machine Co., Ltd.
International Classes:
D05B69/18; D05B69/36; D05B73/04; (IPC1-7): D05B69/36; D05B69/18; D05B73/04
Domestic Patent References:
| JP4093075U | ||||
| JP4093067U | ||||
| JP6063269A | ||||
| JP5070483U | ||||
| JP63107691U |