Sewing – Elements – Needles
Patent
1990-09-17
1992-03-03
Schroeder, Werner H.
Sewing
Elements
Needles
D05B 8702
Patent
active
050922572
ABSTRACT:
In the automatic threading device for the sewing machine, the treading rod is lowered and rotated, and the threading hook is automatically inserted into and through the needle eye. However, if the presser-foot detector detects the presser-foot is lowered, the threading rod is prohibited from being operated. Alternatively, if the operation detector detects the sewing-machine motor is being operated, the threading rod is prohibited from being operated. Consequently, even if the operator by mistake presses the threading switch during sewing operation when the presser foot is lowered or the sewing-machine motor operates, the threading rod is prohibited from being driven. Therefore, the threading hook is prevented from being damaged. The threading switch can be provided on the front panel of the sewing machine, near the start-stop switch or in any other easily accessible position.
REFERENCES:
patent: 1779238 (1930-10-01), Howard
patent: 2704526 (1955-03-01), Benink et al.
patent: 2727479 (1955-12-01), Meissler
patent: 2739553 (1956-03-01), Zink et al.
patent: 2815725 (1957-12-01), Clauss et al.
patent: 2910029 (1959-10-01), Herbst
patent: 3002476 (1961-10-01), Capelli
patent: 4355591 (1982-10-01), Itoh et al.
patent: 4459927 (1984-07-01), Kurland et al.
patent: 4651660 (1987-03-01), Oshima et al.
patent: 5003899 (1991-04-01), Ogawa
Brother Kogyo Kabushiki Kaisha
Izaguirre Ismael
Schroeder Werner H.
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