Driving device for thread hooking mechanism for sewing machine

Details Driving device for thread hooking mechanism for sewing machine Driving device for thread hooking mechanism for sewing machine

2009-06-19

2011-11-08

Patel, Tejash (Department: 3765)

Sewing

Elements

Driving mechanisms

Reexamination Certificate

active

08051788

ABSTRACT:
A sewing machine includes upper and lower beams. A thread hooking mechanism is mounted in the lower beam. A needle plate base is mounted to an end of the lower beam. A transmission shaft rotatably extends in the lower beam and has an end extending into the needle plate base. The transmission shaft can be driven by a power source. A driving device is mounted to the end of the lower beam and includes a transmission gear fixed on the end of the transmission shaft, a driven shaft rotatably received in the needle plate base and having an end coupled to the thread hooking mechanism, and a driven gear fixed on the driven shaft and connected to the transmission gear, with the driven shaft and the thread hooking mechanism rotating at a speed higher than the transmission shaft.

REFERENCES:
patent: 2095450 (1937-10-01), Myers
patent: 2609770 (1952-09-01), Christensen
patent: 3910161 (1975-10-01), Beckwell
patent: 7565873 (2009-07-01), Yamasaki

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