Sewing – Stitch forming – Revolving-hook type
Patent
1989-02-06
1990-07-03
Falik, Andrew M.
Sewing
Stitch forming
Revolving-hook type
112243, 112255, D05B 5700, D05B 5726
Patent
active
049381580
ABSTRACT:
A sewing machine having a vertically reciprocating needle carrying an upper thread, a needle plate secured to a sewing machine housing and provided with a needle penetrating hole, a loop-taker arranged below the needle plate and operated in synchronism with reciprocation of the needle for interlocking a lower thread carried thereby with the upper thread, and a feed dog for feeding a fabric placed on the needle plate in a predetermined direction on which a stitch composed of the interlocked upper and lower threads has been formed. A swingable arm is operated to interfere with the normal travelling path of the lower thread between the loop-taker and the needle hole to draw a predetermined amount of the lower thread out of the loop-taker, while the fabric is not being fed. A lower thread arresting barlike member cooperates with the lower thread drawing arm for preventing the lower thread from being pulled back from the stitch formed on the fabric, while the lower thread is being drawn out of the loop-taker device by the lower thread drawing arm.
REFERENCES:
patent: 4340003 (1982-07-01), Hanyu et al.
patent: 4437421 (1984-03-01), Johnson
patent: 4466368 (1984-08-01), Hanyu et al.
patent: 4693193 (1987-09-01), Hanyu et al.
patent: 4700644 (1987-10-01), Eguchi et al.
Falik Andrew M.
Janome Sewing Machine Industry Co. Ltd.
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