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US 2003/0226485 A1Published application
Buttonhole sewing machine
AssigneeDurkopp Adler Aktiengesellschaft
InventorsKarsten Filges, Theodor Janocha, Jochen Fischer
Life of this patent
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Abstract
A buttonhole sewing machine comprises a buttonhole cutting device which includes a knife and a cutting block unit with several cutting blocks, one of which at a time being movable into a position of cooperation with the knife. The cutting blocks are mounted on an anvil that is stationarily joined to the sewing machine. The knife is movable from above against the anvil.
Claims10
A buttonhole sewing machine, comprising
- a needle (7) which is drivable in up and down reciprocation;
- an x-y table (8),
- which is displaceable by an x drive (9) in an x direction and by a y drive (10) in a y direction, and
- which supports at least a work piece clamp (12a, 12b);
- and
- a buttonhole sewing device (16),
- which is substantially disposed downstream of the needle (7) in the y direction,
- which comprises a cutter (17) with a knife (26, 26′),
- which comprises a cutting block unit of several cutting blocks (42, 43), one of which at a time being movable into a position of cooperation with the knife (26, 26′), and
- which is provided with a cutting drive (19, 19′);
- wherein an anvil (18) which supports at least two cutting blocks (42, 43) that are adjustable in the x direction is stationarily joined to the sewing machine;
- and
- wherein the knife (26, 26′) is movable from above against the anvil (18).
10 more elements
Dependencies are inferred from the claim text.