| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 112285000 | Thread cutting, severing or breaking | 21 |
| 20080250995 | THREAD CUTTING DEVICE OF SEWING MACHINE - The thread cutting device of a sewing machine provides a first thread catching member having a first thread catching portion for catching a thread positioned between the horizontal shuttle and the needle hole and carrying out forward and backward movements below the throat plate while the first thread catching portion catches the thread, a second thread catching member having a second thread catching portion for catching the thread laid between the needle hole and the first thread catching portion and guiding the thread caught by the first thread catching member to a fixed blade and to cut the thread by the fixed blade | 10-16-2008 |
| 20090071385 | THREAD CUTTING DEVICE OF SEWING MACHINE - A thread cutting device of a sewing machine cuts a thread below a throat plate through which a needle is inserted. The thread cutting device includes a first thread catcher operable to catch the thread, a second thread catcher operable to catch the thread caught by the first thread catcher, a fixed blade operable to cut the thread caught by the second thread catcher, a driving portion which drives the first thread catcher and the second thread catcher such that the second thread catcher catches the thread caught by the first thread catcher and guides the thread toward the fixed blade, an attaching member to which the fixed blade is fixed and into which the second thread catcher is slidably inserted from above over the fixed blade, and a cover which covers the second thread catcher from above to restrict an upward movement of the second thread catcher. | 03-19-2009 |
| 20100307400 | STATIONARY THREAD-CUTTING DEVICE FOR A SEWING MACHINE - A stationary thread-cutting device for a sewing machine includes a guiding member and a cutter. The guiding member is mounted on a needle plate, and has a major wall defining a thread guiding route. The guiding route includes a lead-in area having an entry slot to permit entry of a leading end of a bobbin thread, a turn-around area for guiding the leading end, a corner piece disposed at the turn-around area, and a cutting station disposed adjacent to a lateral edge of the needle plate to define a lead-out path with the corner piece. The cutter is disposed under the major wall and adjacent to the cutting station, and has a cutting blade. After the bobbin thread is advanced beyond the cutting station, the bobbin thread is cut, thereby ensuring that a predetermined length of the bobbin thread is available for initial interlacing with a needle thread in a sewing operation. | 12-09-2010 |
| 20130152838 | Sewing Machine - A pulling device is configured to grip, after cutting of a sewing material, a suitable portion of the sewing material by means of a grip member, where a leading end portion of the sewing material having been pulled out from a guide device, and pull back the sewing material by movement of the grip member having the sewing material gripped thereby. Thus, the leading end portion of the sewing material, pulled out and extending from the guide device more than necessary, can be minimized to a length necessary for the sewing material to be reliably sewn onto a sewing object at an initial stage of a next sewing operation. In this way, it is possible to minimize a length of a portion of the sewing material that was heretofore wasted without being sewn onto the sewing object. | 06-20-2013 |
| 112288000 | Thread chain | 1 |
| 20160083885 | CUTTING DEVICE FOR A SEWING MACHINE - A cutting device for a sewing machine includes an upper-blade positioning device and a lower-blade positioning device. The upper-blade positioning device includes an upper blade upper blade fixed at a head portion of the upper-blade holder, and a spring and a restricting member sleeved on a body portion of the upper-blade holder. A restricting pin is engaged between an upper-blade drive member and the restricting member. A guide member includes a guide hole for insertion of a rod portion of the upper-blade drive member and is fixed to the base. The upper-blade drive member is inserted through a guide member of the base and moved by a connecting rod. The lower-blade positioning device includes a lower-blade holder, an adjustment member. A lower-blade shaft has one end fixed to the base and another end extended out of the base, rotating the adjustment member can adjust the position of the lower-blade holder. | 03-24-2016 |
| 112289000 | Rotary type | 2 |
| 20090126611 | SYSTEMS AND METHODS FOR THREAD HANDLING AND/OR CUTTING - One embodiment of the present invention relates to a system for thread handling (e.g., separating) and/or cutting. Another embodiment of the present invention relates to a method for thread handling (e.g., separating) and/or cutting. In one example, the present invention may be used in connection with sewing machines, embroidery machines, quilting machines and the like. | 05-21-2009 |
| 20090301370 | SYSTEMS AND METHODS FOR THREAD HANDLING AND/OR CUTTING - One embodiment of the present invention relates to a system for thread handling (e.g., separating) and/or cutting. Another embodiment of the present invention relates to a method for thread handling (e.g., separating) and/or cutting. In one example, the present invention may be used in connection with sewing machines, embroidery machines, quilting machines and the like. | 12-10-2009 |
| 112290000 | Hot wire type | 1 |
| 20120272883 | Heat Cutting Device For Embroidery Sewing Machine - Distal end section of a heat cutter is movable among a processing position where the heating distal end section is kept pressed against a workpiece, a standby position located away from the workpiece, and a refracted position located farther away from the workpiece than the standby position. Pressing member is movable between an operating position where the pressing member presses down the workpiece and a non-operating position where the pressing member does not press down the workpiece. The distal end section is moved between the standby position and the retracted position in interlocked relation to the movement of the pressing member, and, while the pressing member is in the operating position, the distal end section is moved between the standby position and the processing position. Thus, appropriate processing can be performed even at start and end points of the processing. | 11-01-2012 |
| 112291000 | Upper and lower threads | 10 |
| 20120180709 | THREAD CUTTING DEVICE FOR A SEWING MACHINE - A thread cutting device is adapted to be mounted under a bed of a sewing machine, and includes a mount having a marginal region which confronts a thread fetching zone, and a guide slot which is elongated parallel to a stroke path, a fixed knife disposed on the marginal region and having a blade aligned with the stroke path, a movable knife having a shank body which extends along the stroke path to terminate at actuated and hook ends, a drive unit disposed under the mount and having a rotatable output shaft to deliver a rotational force, and a rotation/translation conversion mechanism disposed to convert the rotational force into a translational force that is transmitted through the guide slot to actuate a translation of the actuated end of the shank body to thereby move the shank body between fetching and thread cutting positions. | 07-19-2012 |
| 20140261122 | Cutting Device for a Sewing Machine - A cutting device for a sewing machine includes an upper-blade positioning device and a lower-blade positioning device. The upper-blade positioning device includes an upper blade upper blade fixed at a head portion of the upper-blade holder, and a spring and a restricting member sleeved on a body portion of the upper-blade holder. A restricting pin is engaged between an upper-blade drive member and the restricting member. A guide member includes a guide hole for insertion of a rod portion of the upper-blade drive member and is fixed to the base. The upper-blade drive member is inserted through a guide member of the base and moved by a connecting rod. The lower-blade positioning device includes a lower-blade holder, an adjustment member. A lower-blade shaft has one end fixed to the base and another end extended out of the base, rotating the adjustment member can adjust the position of the lower-blade holder. | 09-18-2014 |
| 20160083884 | SEWING MACHINE - A sewing machine includes a cutting mechanism, a picker, and a drive portion. The cutting mechanism, which cuts an upper thread and a lower thread, is provided close to a shuttle that supplies the lower thread. The picker is provided such that it is able to move between an operating position and a non-operating position. The operating position is a position of the picker where the picker is proximate to the shuttle. The non-operating position is a position of the picker farther away from the shuttle than the operating position. The picker holds the upper thread in the operating position. The drive portion is provided as a common drive source for a cutting operation by the cutting mechanism and for movement of the picker. | 03-24-2016 |
| 112292000 | Single cutter | 7 |
| 20080302288 | Method and Apparatus for Operating a Thread-Producing Machine Having a Thread-Cutting Device - The present invention relates to a method and an apparatus for operating a thread-processing machine having a thread-cutting device. In order to provide a method and a corresponding apparatus for operating a thread-processing machine having a thread-cutting device, which achieves improved results with increased operational reliability in comparison with known apparatuses and methods, it is proposed that the processed product ( | 12-11-2008 |
| 20090199753 | Thread cutter for sewing machine - A thread cutter for a sewing machine includes a first thread seizing assembly which is reciprocally movable and has a distal end formed with a first thread seizing portion, the first thread seizing assembly seizing a needle thread passing a bobbin case and a bobbin thread by the first thread seizing portion, the needle thread passing the bobbin case, a cutting blade located at a position nearer to the needle hole than a movement locus of the first thread seizing assembly, a second thread seizing assembly seizing the needle and bobbin threads both seized by the first thread seizing assembly during a backward movement of reciprocation of the first thread seizing assembly, cutting the needle and bobbin threads in cooperation with the cutting blade. When moved backward, the first thread seizing assembly is swung so that the first thread seizing portion comes close to the second thread seizing assembly. | 08-13-2009 |
| 20090199754 | Thread cutter for sewing machine - A thread cutter for a sewing machine includes a first thread seizing assembly reciprocally movable and including two unit thread seizing members having distal ends formed with first thread seizing portions respectively, a cutting blade located nearer to the needle hole side than a movement locus of the first assembly, and a second thread seizing assembly seizing the needle and bobbin threads both seized by the first assembly during backward movement of the first assembly, cutting the threads in cooperation with the cutting blade. When the threads seized by the first assembly are further seized by the second assembly, the first assembly is moved so that the distal ends of the unit thread seizing members are spaced from each other by a predetermined distance in a direction intersecting a movement direction of the first assembly. | 08-13-2009 |
| 20090211505 | THREAD CUTTING DEVICE OF SEWING MACHINE - A thread cutting device of a sewing machine is provided. The thread cutting device cuts a thread extending between a horizontal shuttle and a throat plate of the sewing machine. The thread cutting device includes a fixed blade, a first thread catcher, a second thread catcher, a driving assembly which moves the first and second thread catchers such that the first thread catcher catches the thread before the second thread catcher catches the thread and pulls the thread toward the fixed blade to cut the thread, and a guide member disposed between the first thread catcher and the driving assembly. The guide member guides the first thread catcher from an advanced position to a thread catching position to catch the thread, and further guides the first thread catcher from the thread catching position to a standby position to turn the first thread catcher toward the fixed blade. | 08-27-2009 |
| 20100175602 | Thread cutting device for a sewing machine - A thread cutting device for a sewing machine with a hook rotatable in a vertical plane includes a drive motor, a fixed knife which has a working-side wall extending towards a thread fetching zone of the sewing machine to terminate at a first cutting edge, and a movable knife which is driven by the drive motor to angularly move between fetching and thread cutting positions in a vertical plane. The movable knife has a lateral edge surface defining a cavity in an intermediate segment thereof to engage lower and upper threads when the movable knife reaches the fetching position. The movable knife has a second cutting edge disposed to press the first cutting edge so as to complete a cutting action. | 07-15-2010 |
| 20120031316 | THREAD CUTTER FOR SEWING MACHINE - A thread cutter for a sewing machine includes a first thread seizing assembly reciprocally movable and having a distal end with a first thread seizing portion, a second thread seizing assembly seizing needle and bobbin threads both having been seized by the first assembly during a backward movement of reciprocation of the first assembly, cutting the needle and bobbin threads in cooperation with a cutting blade, and a thread cutting frame supporting the first assembly and formed with a single elongated groove supporting the first assembly so that the first assembly is movable. The elongated groove includes a linear proximal end groove, an oblique portion, and a main groove and being shaped such that the proximal end groove is translated slightly forward through the oblique portion. When moved backward in the reciprocation, the first assembly is swung so that the first thread seizing portion comes close to the second assembly. | 02-09-2012 |
| 20130055940 | METHOD FOR CUTTING THE LOWER AND AT LEAST ONE UPPER THREAD AND A METHOD FOR LEAD-IN STITCHING AS WELL AS A DEVICE FOR IMPLEMENTING THE METHOD - A method for cutting the lower and at least one upper thread for lead-in embroidering or lead-in sewing is performed with a device including thread catchers ( | 03-07-2013 |
| 112296000 | Lower thread | 1 |
| 112298000 | Single blade cutter | 1 |
| 20140209002 | SEWING MACHINE - The sewing machine has: a base plate that has a guide slit for guiding a bobbin thread that is set on the bottom face side of the throat plate | 07-31-2014 |
| 112300000 | Electrically actuated | 2 |
| 20080229989 | Thread cutting device of sewing machine - A thread cutting device includes a thread catching member having a catching portion, wherein the thread catching member moves back and forth across a path of a lower thread reeled out from a bobbin so as to catch the lower thread by the catching portion and cuts the lower thread by cooperating with a fixed knife, a first power transmitting portion which transmits a power to the thread catching member, a first cam member provided on a lower shaft rotated by a sewing machine motor and transmits a first moving force to the thread catching member through the first power transmitting portion, a second power transmitting portion which transmits a second moving force from a stepping motor to the thread catching member through the first power transmitting portion. | 09-25-2008 |
| 20120234221 | ACTIVATION DEVICE FOR A PATH AND TIME DEPENDENT MOTION OF A THREAD CUTTING AND LEAD-IN STITCHING UNIT - The activation for a path and time related motion of a thread cutting and lead-in stitching unit ( | 09-20-2012 |
