Back to results
US 6,006,685 AGranted
Buttonhole sewing machine having a plurality of cutting blocks
AssigneeDurkopp Adler Aktiengesellschaft
InventorsEberhard Kastrup, Tobias Kaufhold, Jochen Fischer
Life of this patent
Estimating the term…
Abstract
A sewing machine having a machine arm, a rest for the material being sewn and a device for producing buttonholes, which comprises a cutting knife and a plurality of cutting blocks of respectively different lengths which are arranged on a common carrier. The buttonhole device is acted upon by an actuating device that can be moved from an upper position into a lower position, the cutting knife is arranged in a stationary manner underneath the sewing material, and the cutting block is lowered by the actuating device onto the cutting knife.
Claims35
A sewing machine comprising:
- a machine arm;
- a resting plane for a sewing material being sewn;
- and
- a device for producing buttonholes in the material, said device for producing buttonholes comprising:
- a cutting knife which is arranged in a stationary manner with respect to the sewing material rest;
- a plurality of cutting blocks of different respective lengths which are arranged on a carrier;
- and
- an actuating device;
- wherein the cutting block carrier is movable by the actuating device between an upper disengaged position and a lower position in which one of said cutting blocks engages the cutting knife.
6 more elements
Dependencies are inferred from the claim text.