Patents Assigned to VSM Group AB
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Publication number: 20090055015Abstract: A sewing order is determined in embroidering at least one embroidery element on a sewing material in a sewing machine, which has access to a memory for stitch data for the embroidery element and a processor for reading the stitch data and for maneuvering the sewing machine to execute stitches according to the stitch data. An embroidery element is composed of basic elements, through a formation of clusters of basic elements having the same characteristics. A level for each cluster is determined. The clusters are sorted with regards to their respective characteristics and sorting of the clusters into a sewing order based on characteristics and levels of the clusters.Type: ApplicationFiled: August 21, 2008Publication date: February 26, 2009Applicant: VSM GROUP ABInventor: Lars Roos
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Publication number: 20080257240Abstract: A method and device for free-hand embroidering on a sewing material with a sewing machine which has a memory for stitch data for a sewing pattern and a processor for reading the stitch data and for causing the sewing machine to execute stitches according to stitch data, which sewing machine has a needle and a sewing material feeder for moving the sewing material in a direction, which processor controls movements according to the direction relative to the position of the needle for the execution of stitches according to the sewing pattern, and which method includes during use of the sewing machine in a free-hand mode: storage in the memory of stitch data for at least one stitch type for free-hand embroidering, choice of a stitch type, maneuvering, via first control signals, a movement of the sewing material feeder in any desired the direction by using a hand-operated control, detection of the first control signals in the processor, calculation in the processor, from the first control signals, of the directionType: ApplicationFiled: April 17, 2008Publication date: October 23, 2008Applicant: VSM GROUP ABInventors: Hans Grufman, Henrik Eklund
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Publication number: 20080121158Abstract: A method and device applicable to a sewing machine which has a needle and a gripper with a horizontally positioned lower bobbin for executing a seam with stitches in a sewing material being sewn, for compensating a deficiency in a longitudinal shift of the needle during a stitch being caused by an arcuate movement of the needle when it shifts sideways in a stitch, wherein the method includes the material being advanced by a feeder a length yn in the longitudinal direction of the seam on the basis of the seam setting, and wherein the sewing machine has a control including an algorithm causing the feed motor to set the feeder, so that at each stitch which includes sideways shifts of the needle it advances the sewing material a correction length en in the longitudinal direction of the seam, thereby compensating a corresponding deficiency in the needle's longitudinal shift relative to the material during the stitch being caused by the needle's arcuate sideways movement.Type: ApplicationFiled: July 23, 2007Publication date: May 29, 2008Applicant: VSM GROUP ABInventors: Rolf Janeke, Fredrik Berglund, Lars Roos
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Publication number: 20070245940Abstract: A sewing machine for stitching thread with several colors according to a sewing pattern stored in the form of stitch data in a memory, where the thread is dyed by a mechanism for dyeing the thread and where the upper thread is fed to a needle by a thread feeder. The thread consumption per stitch is calculated by a control unit from the data. The thread feeder is controlled by the control unit so that for each step it advances the calculated thread consumption for the stitch.Type: ApplicationFiled: April 12, 2007Publication date: October 25, 2007Applicant: VSM GROUP ABInventor: Rolf Wahlstrom
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Patent number: 7240628Abstract: A sewing machine including a needle being supplied with an upper thread, a loop taker which accommodates a bobbin for a bottom thread, and a drive unit, which forces the needle to perform a reciprocating movement. The needle, during its movement and in cooperation with the loop taker, executes a stitch on a sewing material being advanced between the upper thread and the bottom thread. A take-up lever, for each stitch, pulls tight a knot being formed in the sewing material by the upper thread and the bottom thread in cooperation. The sewing machine further includes a thread transfer member supplying the needle with an upper thread with either a thread portioner or a friction braking assembly for friction braking of the upper thread. A switch switches between thread supply with the thread portioner or with the friction braking assembly. A control unit controls the thread supply from the thread portioner or, alternatively, controls the friction braking assembly.Type: GrantFiled: March 15, 2005Date of Patent: July 10, 2007Assignee: VSM Group ABInventors: Bertil Friman, Åke Jönsson, Henrik Eklund
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Patent number: 7225747Abstract: A sewing machine including an upper thread supply to a needle, a loop taker accommodating a bobbin for a bottom thread, a drive unit which through coupling elements affects a number of mechanical elements, of which the needle is one of the mechanical elements, to perform synchronous cyclic movements between themselves, wherein the needle during its movement in cooperation with the loop taker performs stitches on a sewing material which is transported between upper thread and bottom thread, by means of a take-up lever which in each stitch pulls tight a knot, which is formed in the sewing material by the upper thread and the bottom thread in cooperation, wherein the sewing machine includes a sensor function that detects a deviation between a set value for a point of time at which a predetermined value for a tensile force in the upper thread is reached at pull tight of a knot and an actual value at the time of point where the predetermined value of the tensile force in the upper thread is reached at pull tight oType: GrantFiled: March 15, 2005Date of Patent: June 5, 2007Assignee: VSM Group ABInventors: Bertil Friman, Henrik Eklund
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Publication number: 20070101918Abstract: A method of generating embroidery data for controlling stitching out by an embroidery machine. The method comprises simulating a position of a needle on an embroidery workspace and updating the needle position in response to an input control signal. A series of stitch time points is generated and embroidery data defining a stitch is generated. The data defining a stitch being dependent upon the needle position at a corresponding stitch time point and at a preceding stitch time point.Type: ApplicationFiled: October 20, 2006Publication date: May 10, 2007Applicant: VSM Group ABInventors: Andrew Kaymer, Andrew Wyatt, Martin Tatar
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Publication number: 20060278150Abstract: A method and an arrangement for placing an embroidery in the desired position on a sewing material for embroidering on a sewing machine which has a memory for embroidery elements and a processor for reading stitch data for a selected embroidery element and for manoeuvring the sewing machine to execute stitches associated with the selected embroidery element on the sewing material, in which pattern points are assigned to the embroidery element and registered in the processor, and in which fabric points are marked on the sewing material at points where corresponding pattern points are to be located when embroidering, the sewing machine processor automatically orienting and scaling executed patterns of the embroidery element on the sewing material.Type: ApplicationFiled: May 31, 2006Publication date: December 14, 2006Applicant: VSM GROUP ABInventor: Lars Roos
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Publication number: 20060278149Abstract: A sewing machine including a needle that is supplied with an upper thread. A drive element drives the needle to perform a reciprocating movement in order to carry the upper thread through a sewing material that is advanced between the upper thread and the lower thread, so that the upper thread forms a loop beneath the sewing material. A shuttle houses a lower bobbin for the lower thread and a shuttle arm on the shuttle which catches in the loop of the upper thread and carries the upper thread around the lower bobbin, so that a stitch is executed on the sewing material. A thread tensioning and take-up lever on each stitch draws the loop tight so that a knot is formed in the sewing material by interaction of the upper thread and the lower thread.Type: ApplicationFiled: May 31, 2006Publication date: December 14, 2006Applicant: VSM GROUP ABInventor: Henrik Eklund
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Patent number: 7069871Abstract: A method of embroidering a pattern by means of a processor-controlled sewing machine, the method comprising the following steps: the fabric that is to be embroidered is placed in the required position in relation to a threaded needle on the sewing machine, a number of embroidery elements having pre-programmed embroideries are provided, each embroidery element is provided with a starting point and an end point for an embroidery on a corresponding physical embroidery element, a directional change associated with the end point is assigned to the embroidery element, in embroidering a sequence of physical embroidery elements by means of the sewing machine a succeeding physical embroidery element is rotated corresponding to the directional change in the preceding physical embroidery element, an embroidery having any desired number of physical embroidery elements in sequence is performed by the sewing machine according to the sequence of selected embroidery elements.Type: GrantFiled: March 28, 2003Date of Patent: July 4, 2006Assignee: VSM Group ABInventors: Kerstin Widell, Anders Andersson
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Patent number: 7036443Abstract: A gripper hook for a sewing machine. The sewing machine includes a needle, a stitch plate and a housing for the gripper hook. The gripper hook includes an open cylinder and is rotatably mounted on a horizontal axis. A bobbin basket is supported inside the gripper hook receives a bobbin case. The bobbin case houses a bobbin. The needle, in executing a stitch, is brought down perpendicular to the axis of the gripper hook in front of the open part of the gripper hook through an opening in the wall of the bobbin basket such that a gripper hook tip catches the upper thread and leads the upper thread around the bobbin basket. The gripper hook has a side wall that is at least wide enough for the side wall to protect the bobbin basket from being struck by the needle when the needle tip is out of alignment.Type: GrantFiled: December 2, 2003Date of Patent: May 2, 2006Assignee: VSM Group ABInventor: Rolf Wahlström
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Publication number: 20050223958Abstract: A sewing machine including an upper thread supply to a needle, a loop taker accommodating a bobbin for a bottom thread, a drive unit which through coupling elements affects a number of mechanical elements, of which the needle is one of the mechanical elements, to perform synchronous cyclic movements between themselves, wherein the needle during its movement in cooperation with the loop taker performs stitches on a sewing material which is transported between upper thread and bottom thread, by means of a take-up lever which in each stitch pulls tight a knot, which is formed in the sewing material by the upper thread and the bottom thread in cooperation, wherein the sewing machine includes a sensor function that detects a deviation between a set value for a point of time at which a predetermined value for a tensile force in the upper thread is reached at pull tight of a knot and an actual value at the time of point where the predetermined value of the tensile force in the upper thread is reached at pull tight oType: ApplicationFiled: March 15, 2005Publication date: October 13, 2005Applicant: VSM Group ABInventors: Bertil Friman, Henrik Eklund
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Publication number: 20050199165Abstract: A sewing machine including a needle being supplied with an upper thread, a loop taker which accommodates a bobbin for a bottom thread. and a drive unit, which forces the needle to perform a reciprocating movement. The needle, during its movement and in cooperation with the loop taker, executes a stitch on a sewing material being advanced between the upper thread and the bottom thread. A take-up lever, for each stitch, pulls tight a knot being formed in the sewing material by the upper thread and the bottom thread in cooperation. The sewing machine further includes a thread transfer member supplying the needle with an upper thread with either a thread portioner or a friction braking assembly for friction braking of the upper thread. A switch switches between thread supply with the thread portioner or with the friction braking assembly. A control unit controls the thread supply from the thread portioner or, alternatively, controls the friction braking assembly.Type: ApplicationFiled: March 15, 2005Publication date: September 15, 2005Applicant: VSM Group ABInventors: Bertil Friman, Ake Jonsson, Henrik Eklund
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Patent number: 6934599Abstract: The disclosure provides an embroidery data group for each character of a predetermined font, the consequent set of embroidery data groups being for use by an embroidery machine for inclusion in an embroidery design. The embroidery data groups are provided in such a way that each data group is individually selectable by the embroidery machine.Type: GrantFiled: April 18, 2003Date of Patent: August 23, 2005Assignee: VSM Group ABInventors: Andrew Bennett Kaymer, Andrew Wyatt, Anders Pehrsson
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Patent number: 6901870Abstract: The present patent application relates to an embroidery frame for a sewing machine and a method for clamping and tensioning a textile material. The embroidery frame comprises an inner frame, an outer frame and a hose arranged between the inner frame and the outer frame, which hose is expandable through pressurization. After manual assembly of the inner frame and the outer frame, a textile material intended for embroidering can be clamped between the hose and the outer frame and tensioned over an area of the textile material intended for embroidering through pressurization of the hose. The hose expands through initial pressurization in an upper part and clamps thereby the textile material between the upper part of the hose and the outer frame. Upon continued pressurization the hose expands in a lower part in a direction towards the outer frame and tensions thereby the textile material.Type: GrantFiled: December 16, 2003Date of Patent: June 7, 2005Assignee: VSM Group ABInventors: Petter Eklöf, Herman Arén, Per Svahn
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Patent number: 6690988Abstract: There is disclosed a method of converting a bitmap to an object-based embroidery pattern by generating a skeleton from the bitmap and traversing paths and nodes identified in the skeleton, the embroidery pattern objects being generated during the traversal. The outline of the bitmap is used to define parts of the boundaries of the generated objects, which are laid down using a linear stitch type on the first traversal of a skeleton path and a fill stitch type on the second traversal of the skeleton path.Type: GrantFiled: August 22, 2002Date of Patent: February 10, 2004Assignee: VSM Group ABInventors: Andrew Bennett Kaymer, Martin Bysh
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Publication number: 20030212470Abstract: The disclosure provides an embroidery data group for each character of a predetermined font, the consequent set of embroidery data groups being for use by an embroidery machine for inclusion in an embroidery design. The embroidery data groups are provided in such a way that each data group is individually selectable by the embroidery machine.Type: ApplicationFiled: April 18, 2003Publication date: November 13, 2003Applicant: VSM Group ABInventors: Andrew Bennett Kaymer, Andrew Wyatt, Anders Pehrsson
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Patent number: 6609469Abstract: A holder for material to be sewn in the form of a buttonhole frame has a frame plate (18) and a movable clamping element (24) with passages (20, 30). The holder (10) for material to be sewn can be fixed in place on a displacement mechanism of a sewing machine, and the material to be sewn can be clamped between the frame plate (18) and the clamping element (24) with the aid of a pressure element (34). To make possible space-saving and assured clamping, a wedge surface (38) is provided which, in the course of the movement of the pressing element (34) into the position in which the material to be sewn is clamped, builds up a pressing force in the clamping element (24) against the frame plate.Type: GrantFiled: January 15, 2002Date of Patent: August 26, 2003Assignee: VSM Group ABInventor: Rolf Kessler
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Patent number: D557291Type: GrantFiled: March 29, 2007Date of Patent: December 11, 2007Assignee: VSM Group ABInventor: Anders Gustafsson
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Patent number: D568908Type: GrantFiled: April 11, 2007Date of Patent: May 13, 2008Assignee: VSM Group ABInventor: Anders Gustafsson