Needle driving apparatus for sewing machine
AssigneePegasus Sewing Machine Mfg. Co., Ltd.
InventorTakashi Kasuda
Life of this patent
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Abstract
A needle driving apparatus for a sewing machine for allowing oscillatory movement of a needle bar through the motion of a lever which oscillates up and down interlocking with a main shaft, wherein a rectangular slider is rotatably supported by a fork provided on the end of the oscillating lever. On the upper end of the needle bar is fixed a guide member having a guide groove which is orthogonal with the needle bar and slidably fitted to the fork of the oscillating lever, and the rectangular slider is fitted in the guide groove of the guide member.
Claims5
A needle driving apparatus for a sewing machine comprising an oscillating lever which oscillates up and down interlocking with a main shaft;
- a needle bar supported in a frame of the sewing machine such that it can move up and down;
- a guide member to be disposed on the upper end of the needle bar and provided with a linear guide groove which is orthogonal with the needle bar;
- and a slider to be rotatably supported horizontally between the arms of a fork extending forwardly from the free end of said oscillating lever and slidably fitted to the guide groove of said guide member.
Dependencies are inferred from the claim text.