Cycle sewing machine

A cycle sewing machine comprising:

• a main shaft;
• clutch means for connecting said main shaft to a driving source, said clutch means having a breaking cam fixed to said main shaft;
• a breaking lever movable to engage with said breaking cam to lock said main shaft at a predetermined position;
• an eccentric cam rotatable in synchronization with said main shaft;
• a rocking link driven by said eccentric cam;
• an operative rod selectively moved into engagement with said rocking link and driven by said rocking link;
• a mirror link driven by said operative rod to rotate in a clockwise and in a counterclockwise direction;
• a lift lever connected at one end thereof to said rotary link to move in response to said clockwise and counterclockwise rotary link rotation;
• a button holder connected to the other end of said lift lever to enable said button holder to be lifted thereby;
• a plurality of links coupled to said rotary link for movement in response to said clockwise and counterclockwise rotary link rotation;
• a thread trimming mechanism driven by said rotary link and said plurality of links coupled to said rotary link which act in association therewith;
• a drive control shaft rotatable in synchronization with said main shaft to effect one rotation per a cycle of a sewing operation, said drive control shaft having a first control cam and a second control cam;
• first control means driven by said first control cam for driving said clutch means to connect said main shaft to said driving source;
• and
• second control means driven by said second control cam whereby said second control cam brings said operative rod into said selective engagement with said rocking link and brings said breaking lever into engagement with said breaking cam.