Thread tension adjustment device of multi-needle sewing machine

Details Thread tension adjustment device of multi-needle sewing machine Thread tension adjustment device of multi-needle sewing machine

2005-08-23

2005-08-23

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Tensioning

Reexamination Certificate

active

06932009

ABSTRACT:
A thread tension adjustment device of multi-needle sewing machine including: a fixing rack fixed on a housing of the sewing machine; multiple frame bodies side by side fixed on the fixing rack; multiple thread tension adjustment units mounted on the frame bodies, each thread tension adjustment unit serving to resiliently clamp a thread, multiple thread-loosening slide boards being respectively slidably disposed on the frame bodies, each thread-loosening slide board having multiple wedge sections; and a link pivotally connected with the thread-loosening slide boards for driving the thread-loosening slide boards to move the wedge sections thereof toward the corresponding thread tension adjustment units to release the threads clamped by the thread tension adjustment buttons of the thread tension adjustment units.

REFERENCES:
patent: 2725840 (1955-12-01), Zeier
patent: 2925058 (1960-02-01), Conrad
patent: 2976831 (1961-03-01), Hacklander
patent: 3213815 (1965-10-01), Russmann
patent: 5816175 (1998-10-01), Teramoto
patent: 6101961 (2000-08-01), Sakuma

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