Abstract: The invention relates to a supply device (32) for sewing material layers (16, 18, 20) of a large area sewing product such as mattress panels for example, comprising several sewing material layers (16, 18, 20), particularly at least three, preferably one sewing material layer of elastic material, for example foamed material, and one sewing material layer intended as a top layer, which layers are to be stitched together using a sewing machine (14) with at least one sewing unit, in particular a multiple-needle sewing machine, wherein said supply device consists of at least one roll receiver (34) capable of receiving at least two material rolls (24, 26, 28, 36, 38, 40), each material roll (24, 26, 28, 36, 38, 40) being rotatably supported in a holder (42) of the roll receiver (34), and wherein sewing material layers (16, 18, 20) can be removed from the material rolls (24, 26, 28, 36, 38, 40) arranged in a roll receiver (34) and fed to the sewing unit, wherein the sewing material layers (16, 18, 20) from a roll re

Abstract: A multiple needle sewing machine. The sewing machine includes a needle head, a first needle and a second needle both coupled to the head, a drive mechanism, a gripper shaft, and a first gripper hook and a second gripper hook both coupled to the gripper shaft. The drive mechanism is configured to translate the first needle together with the second needle, and to individually translate only one of the first needle or the second needle.

Abstract: An apparatus for producing large stitched products has a multiple needle stitching unit, a storage device, and a processing station. The multiple needle stitching unit has a large number of stitching elements and a guide device which is arranged in the region of the stitching elements and movable in relation to the stitching elements in a direction substantially perpendicular to the conveying direction of the stitched product. Between the multiple needle stitching unit and the processing station is a device for compensating for an annular offset of the stitched product between an output of the guide device and an input of the processing station.

Abstract: The invention relates to a multiple needle sewing machine for sewing large-area sewing material (28) which consists of several layers, at least two layers (6, 15, 21), whereof one layer (15) at least is formed of an elastic material, which multiple needle sewing machine comprises a sewing unit, a supply device for the layers to be sewn together (6, 15, 21), a storage device for withdrawing and storing the sewn layers (6, 15, 21) from the sewing unit, as well as a device which is arranged upstream of the sewing unit and by which the layer (15) made of an elastic material is supplied to the sewing unit in a non-stretched condition or tendentiously in the region of the device in a tendentiously compressed condition, together with said one or said further layers (6, 21), while retaining the compression.

Abstract: A method for producing multi-layered sewing products from a sewing material such that within the length of sewing material several sewing products are formed with at least one sewing product pattern; the length of sewing material being fed to a processing station for sewn material downstream of the sewing unit, in which the sewn length of sewing material is separated and cut to individual sewing products at least transversely to its conveying direction and wherein markers are applied to the length of sewing material which include information concerning the processing of the length of sewing material and which are read by a reading device.

Abstract: The invention relates to a supply device (32) for sewing material layers (16, 18, 20) of a large area sewing product such as mattress panels for example, comprising several sewing material layers (16, 18, 20), particularly at least three, preferably one sewing material layer of elastic material, for example foamed material, and one sewing material layer intended as a top layer, which layers are to be stitched together using a sewing machine (14) with at least one sewing unit, in particular a multiple-needle sewing machine, wherein said supply device consists of at least one roll receiver (34) capable of receiving at least two material rolls (24, 26, 28, 36, 38, 40), each material roll (24, 26, 28, 36, 38, 40) being rotatably supported in a holder (42) of the roll receiver (34), and wherein sewing material layers (16, 18, 20) can be removed from the material rolls (24, 26, 28, 36, 38, 40) arranged in a roll receiver (34) and fed to the sewing unit, wherein the sewing material layers (16, 18, 20) from a roll re

Abstract: A chain stitch or a double chain stitch sewing machine or sewing element of a sewing machine comprising three elements: a needle; a looper; and a spreader improved in such a way that a collision of any two of the elements during the sewing operations will not cause serious damage to the sewing machine and stop periods as a consequence thereof. It is provided that the sewing elements are formed such that at least one sewing element, in particular the spreader, will dodge or break at the predetermined breaking point due to its design and/or material properties.

Abstract: The invention relates to a chain stitch sewing machine comprising stitch-forming sewing elements including at least one needle head (1) and needles (6) arranged on the needle head and at least one gripper shaft and gripper hooks arranged on the gripper shaft, wherein the needles (6) and the gripper hooks respectively form a sewing element pair and are driven in a manner such as to perform preferably chain stitches and especially double chain stitches in a sewing material arranged on a sewing material support, respectively using a needle thread and a gripper thread.

Abstract: 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.