Work sheet cutting blade with continuous blade displacement dete

Details Work sheet cutting blade with continuous blade displacement dete Work sheet cutting blade with continuous blade displacement dete

1992-12-23

1994-11-08

Crowder, Clifford D.

Sewing

Special machines

Buttonhole

83 74, 83905, D05B 306

Patent

active

053617134

ABSTRACT:
A work sheet cutting apparatus for cutting a work sheet, including a cutting member for cutting the work sheet, a support member on which the work sheet is to be received when the cutting member is cutting through the work sheet, an actuating device for displacing the cutting member along a predetermined path between an operative position of the cutting member where the cutting member is received by the support member and a retracted position of the cutting member spaced away from the operative position, and a detecting device for continuously detecting the displacement of the cutting member within a predetermined range included in the predetermined path, and generating continuous signals representing that the cutting member is displacing within the predetermined range.

REFERENCES:
patent: 4271768 (1981-06-01), Goldbeck
patent: 4341169 (1982-07-01), Mainot et al.
patent: 4467738 (1984-08-01), Walther et al.
patent: 4517908 (1985-05-01), Park
patent: 5085157 (1992-02-01), Jung et al.
patent: 5085157 (1992-02-01), Jung et al.

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