Patent ID: 6981458

Claim:
A sewing machine with work edge cutting mechanism having a main drive shaft which is rotated to vertically reciprocate a machine needle, said sewing machine comprising: a cutting means for cutting the work edge while the work is stitched, said means including a lower blade fixed to a place adjacent a needle plate of the sewing machine and an upper blade which is located in an upper operative position as is protruded up from the needle plate, said upper blade being operated in association with rotation of said main drive shaft to cut the edge of work; a transmission means for transmitting the rotation of said main drive shaft to said upper blade such that the upper blade may be vertically reciprocated relative to said lower blade; a transmission intercepting means for intercepting the transmitting operation of said transmission means; an operating means which is manipulated to activate said intercepting means; a retreating means operated in association with said operating means to retreat said upper blade from said upper operative position to a retreat position where said upper blade is inoperative.