Brother S-7200C Manual Do Utilizador

7. MECHANICAL DESCRIPTIONS 

 

S-7200C 

63 

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-６. Thread trimming mechanism 

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-６-１. Thread trimming mechanism operation sequence 

The illustration below shows the mechanism with the high-speed rotary hook removed. 

1）  When thread rimming signal is input

 

 

2）  Rocking of movable knife holder

 

 

 

 

1. Solenoid 

plunger 

2. Solenoid 

lever 

3.  Thread trimmer cam lever shaft 
4.  Roller (Moves to above (1)) 

 

(1)  Thread trimmer cam 
 

4345M 

4346M

1.  Thread trimmer cam 
2. Roller 
3. Slide block 
4. Forked shaft 
5.  Thread trimmer lever 
6.  Thread trimmer connecting rod 
7. Movable knife holder 
8. Movable knife