BigPatents India

- A high –cylinder type sewing machine device, especially refer to a high cylinder unitarized by a separable mechanism which can be changed with different unitary and assembled conveniently, mainly combined from: high cylinder A and high cylinder B, whereby high cylinder B can be detachable and changed into another type of high cylinder device, whereas high cylinder A is mounted on the lower shaft of the bottom side of base plate, the lower shaft rotates horizontally and translate into vertical rotation by a gear, and again translate into horizontal rotation by the horizontal rotating mechanism in the high cylinder A; high cylinder B is the unit that contains spindle, and has the combination of alignment washer, acentric shaft, connection groove and fork plate for the sake of changing different type of high cylinder.