Arch clamp foot lifting apparatus

Details Arch clamp foot lifting apparatus Arch clamp foot lifting apparatus

1998-06-24

2000-12-26

Izaguirre, Ismael

Sewing

Elements

Presser devices

112 76, D05B 2902

Patent

active

061642258

ABSTRACT:
Since a solenoid device generates the maximum drawing force at the final position of the retracting stroke of a plunger when it retracts into the solenoid device, the drawing force becomes so large at a position close to a pressing end position of a pressing member that energy is consumed than necessity, and the solenoid device is made large-sized. Accordingly, an arch clamp foot lifting apparatus of the present invention solved this problem by connecting a wedge-shaped block member to a plunger of the solenoid device and retaining an upper portion of the pressing member on a cam surface of a block member through a driven portion.

REFERENCES:
patent: 1820569 (1931-08-01), Kiewicz
patent: 2359330 (1944-10-01), Pikul
patent: 4498407 (1985-02-01), Landwehr et al.
patent: 4699072 (1987-10-01), Tsukioka
patent: 5609115 (1997-03-01), Ayuta et al.

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