Transmission mechanism for a mini-sewing machine

Details Transmission mechanism for a mini-sewing machine Transmission mechanism for a mini-sewing machine

1992-10-05

1994-02-15

Braun, Leslie A.

Sewing

Elements

Driving mechanisms

74 48, D05B 6900, F16H 2118

Patent

active

052857395

ABSTRACT:
A transmission mechanism includes a transmission gear shaft having a speed reducing gear on one end driven by a DC motor via a driving gear and a transmission gear on an opposite end meshed with a driven gear on an eccentric gear shaft, which has an eccentric axle coupled to a reciprocating block via a crank and driven to reciprocate the reciprocating block causing it to alternatively move the needle arm of a mini-sewing machine up and down in performing the process of stitching.

REFERENCES:
patent: 3745950 (1973-07-01), Kato
patent: 4388885 (1983-06-01), Dreier
patent: 5003898 (1991-04-01), Huang

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