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US 7,597,059 B2Granted
Method and apparatus for manufacturing a sewing product
AssigneeNahmaschinenfabrik Emil Stutznacker GmbH & Co. KG
InventorKlaus Stutznäcker
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AssigneeNahmaschinenfabrik Emil Stutznacker GmbH & Co. KG
InventorKlaus Stutznäcker
Estimating the term…
The present invention relates to a method for producing a large sewn product, such as a mattress panel or a quilt, having two stitched seams created by a sewing device, moving transversely to the direction of feed, between two adjacently arranged sewn products. The material between said seams is subsequently cut by the sewing unit, located within the sewing device. The apparatus comprises a conveyor mechanism, a sewing device consisting of a sewing unit with at least two needles, a gripper box with grippers allocated to said needles, a tape-like element, a cutting element, and a storage mechanism. By guiding the sewing unit along a first guide means, and by guiding the gripper box along a second guide means, and synchronizing both, material can be cut and sewn on the rim without tension, thereby improving current methods by avoiding sewing inaccuracies and eliminating their subsequent remedies.
Method for manufacturing a sewing product as a section of a sewing product material, in which method said sewing product material is, by means of a sewing device that is movable transversely to the conveying direction, provided with at least two stitched seams between two sewing products which are arranged adjacent to each other in the sewing product material, and in which the sewing product material is subsequently cut between these two stitched seams, said sewing device including a sewing unit with needles and a gripper box with grippers allocated to said needles, and a tape-like sewing element, characterized in that during the sewing of the stitched seams said sewing unit is moved along a first guide means and the gripper box is moved along a second guide means, and that the movements of the sewing unit and the gripper box are synchronized with each other.
Apparatus for manufacturing a sewing product as a section of a sewing product material, said apparatus comprising a conveyor mechanism for conveying the sewing product material, a sewing device consisting of a sewing unit with at least two needles and a gripper box with at least two grippers respectively allocated to the needles, and a cutting mechanism, by means of which after the sewing of two stitched seams a sewing product can be separated from the sewing product material transversely to the conveying direction of the sewing product material by a cut between the stitched seams, and a storage mechanism for a tape-like sewing element which can be sewed to the sewing product material in the stitched seam area, characterized in that the sewing unit is movable along a first guide means and the gripper box is movable along a second guide means, and that the movements of the sewing unit and the gripper box for performing stitches are synchronized with each other.
Dependencies are inferred from the claim text.