Sewing arm mechanism of embroidery machine

Details Sewing arm mechanism of embroidery machine Sewing arm mechanism of embroidery machine

2007-09-20

2010-12-07

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Driving mechanisms

Reexamination Certificate

active

07845295

ABSTRACT:
Disclosed is a sewing arm mechanism of an embroidery machine. Within the sewing arm mechanism, there are provided a needle bar vertical drive unit and cloth pressing member vertical drive unit for vertically moving a needle bar and a cloth pressing member, respectively, by using the rotational driving force of an upper shaft. The sewing arm mechanism is configured in such a manner that the needle bar drive reaction force exerted on the upper shaft by the driving the needle bar vertical drive unit, and the cloth pressing member drive reaction force exerted on the upper shaft by the driving of the cloth pressing member vertical drive unit act in opposite directions of each other, whereby the magnitudes of the reaction forces exerted on the upper shaft can be cancelled with each other.

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Taiwanese Office Action for Taiwanese Patent Application No. 096137358 which corresponds to U.S. Appl. No. 11/858,172.

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