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112 - Sewing

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Class / Patent application numberDescriptionNumber of patent applications / Date published
112222000 Needles 21
112235000 Presser devices 18
112285000 Thread cutting, severing or breaking 17
112302000 Thread guiding or handling 11
112228000 Revolving hooks 8
112220000 Driving mechanisms 7
112271000 Starting or stopping 6
112258000 Frames 5
20090013913Embroidery unit cover, side table for sewing machine, and sewing machine - An embroidery unit cover that covers an embroidery unit that is to be attached to a sewing machine for sewing embroidery that includes a planar portion that forms a substantially horizontal surface combined with a bed portion of the sewing machine and a free arm portion provided to the bed portion, a peripheral wall portion that runs continuously along a peripheral border of the planar portion and that extends vertically downward from the planar portion, and a first engagement portion that is disposed on the peripheral wall portion and that is structured to be attached to and detached from a second engagement portion disposed on at least one of the bed portion and the free arm portion. When the first engagement portion and the second engagement portion are engaged with each other, the embroidery unit cover forms a side table with the free arm portion.01-15-2009
20110297063NEEDLE PLATE AND SEWING MACHINE - A needle plate is disclosed including a first needle plate secured on a bed and a second needle plate detachably attached to the first needle plate. An engagement mechanism is further provided including an engagement member formed at the first needle plate and an engagement subject member formed at the second needle plate. The engagement mechanism retains the second needle plate with the first needle plate through engagement of the engagement member and the engagement subject member. The needle plate is further provided with a switching element switching positioning of the second needle plate relative to the first needle plate between the first and the second positions. The second needle plate, when in the first position, is secured in intimate contact with the first needle plate with the engagement mechanism engaged, and when in the second position, is distanced from the first needle plate with the engagement mechanism unlocked.12-08-2011
20100212563Sewing machine with detachable needle plate - A sewing machine includes a feed dog which transfers workpiece cloth, a needle plate having a first hole through which a needle is passed and a second hole through which a feed dog is movable upward and downward, a bed to which the needle plate is detachably attachable, a feeding mechanism which drives the feed dog in a front-back direction and in an up-down direction, an engaged portion formed in the needle plate, an engaging portion formed in the feed dog or the feeding mechanism, and a switching unit which switches the feed dog or the feeding mechanism between a transfer position where the feed dog transfers the workpiece cloth and a needle plate adjusting position which differs from the transfer position and where the engaging and engaged portions are engaged with each other thereby to determine a fixing point of the needle plate on the bed.08-26-2010
20100175601Needle plate and sewing machine provided therewith - A needle plate for a sewing machine includes a first needle plate fixed to a sewing machine bed and formed with a needle hole through which a needle passes and a rectangular hole through which a feed dog appears, a second needle plate disposed in front of the first needle plate and detachably attached to the first needle plate, an engagement mechanism sliding the second needle plate rearward from a front side of the first needle plate, thereby engaging the second needle plate with the first needle plate, and a disengagement operating member located on the second needle plate so as to operate the engagement mechanism so that the second needle plate is disengaged from the first needle plate. The disengagement operating member is moved frontward from a rear side of the first needle plate thereby to disengage the second needle plate from the first needle plate.07-15-2010
20130186317Workpiece Holding Frame - A holding frame includes upper and lower frame members having substantially the same thicknesses, and an inner frame member detachably attachable to the inner peripheries of the upper and lower frame members. The upper and lower frame members are fixed together in vertically superposed relation to each other with a workpiece sandwiched therebetween. The workpiece can be set on the frame in any desired of a first stretched-taut state where the workpiece is stretched taut and generally flush with the upper surface of the upper frame member by being pressed upward via the inner frame member, and a second stretched-taut state where the workpiece is stretched taut and generally flush with the lower surface of the lower frame member by being pressed downward via the inner frame member. The workpiece can be held on the frame with substantially the same degrees of tautness in the first and second stretched-taut states.07-25-2013
112254000 Tensioning 4
20090165687THREADING TENSIONING DEVICE OF SEWING MACHINE - A thread tensioning device of a sewing machine for forming multiple types of stitches using a plurality of threads is provided. The thread tensioning device includes thread tensioners disposed to correspond to the threads, an adjusting mechanism coupled to the thread tensioners to select a stitch type and to simultaneously adjust the tensional force applied from each of the thread tensioners to the corresponding thread such that the tensional force is selected from reference tensional forces corresponding to the selected stitch type, fine adjustment mechanisms disposed to correspond to the thread tensioners and to be manually operable to finely adjust the tensional force applied from the corresponding thread tensioner to the corresponding thread, and a reset mechanism coupled to the fine adjustment mechanisms to resets at different timings and interlockingly with the adjusting mechanism an amount of the tensional force finely adjusted by each of the fine adjustment mechanisms.07-02-2009
20080257243Thread tension device for sewing machine - A thread tension device includes paired thread tension discs holding a needle thread, a thread tension spring biasing one of the discs toward the other, a thread tension dial adjusting a tension exerted on the needle thread, a spring force adjusting cam formed in the thread tension dial, a transfer plate following the cam so as to be capable of adjusting the spring force, and a first adjusting member threadingly engaged with the transfer plate to receive one end of the thread tension spring, a thread guide assembly having a through hole formed so that the adjusting tool is insertable into the through hole, and a second adjusting member rotatably mounted on the transfer plate and engageable with the distal end of the adjusting tool inserted into the through hole so as to be rotatable with the tool, thereby rotating the first adjusting member by rotation of the tool.10-23-2008
20120210924SEWING MACHINE - A sewing machine includes a needle thread tension control device including a fixed portion, a shaft having an external thread portion, a thread tension dial, first and second thread tension discs, and a spiral movement member. The spiral movement member includes an internal thread portion meshed with the external thread portion while being movable relative to the external thread portion in a spiral direction relative to the axis, and a scale including marks arranged serially and side by side in the spiral direction. The spiral movement member adjusts the needle thread tension by moving towards or away from the second thread tension disc while rotating in a circumferential direction by meshing between the external thread portion and the internal thread portion. The needle thread tension control device also includes a thread tension spring applying respective biasing forces to the spiral movement member and the second thread tension disc.08-23-2012
20100307399Thread Tensioning Device for a Sewing Machine - A thread tensioning device for a sewing machine comprises a limit member fixed on the sewing machine, and an elastic pulling member mounted on the limit member. The pulling member includes an elastic extension portion which is movably disposed on the limit member. The pulling member further includes a free end formed with a hook-shaped thread pulling portion. The limit member is provided with two limit portions defining a space for passage of the thread. During a thread loosening operation, the thread will be moved within the space defined by the two limit portions while being pulled by the thread pulling portion of the pulling member, so that the thread pulling portion can provide a proper amount of tension to the thread timely, thus avoiding the occurrence of skip stitch and ensuring the sewing quality.12-09-2010
112278000 Thread sensing 3
20130160685LOWER THREAD SUPPLY DEVICE FOR SEWING MACHINE - The present invention relates to a lower thread supply device for a sewing machine, comprising: a housing (06-27-2013
20100126400Device and method for monitoring a thread wound on a bobbin - The present invention relates to a device and a method for monitoring a thread wound on a bobbin during operation in a sewing machine. In order to further develop a method and a device of the type specified initially whilst reducing the expenditure on apparatus and production technology with increased monitoring reliability it is suggested for a device for monitoring a thread wound on a bobbin (05-27-2010
20130167763APPARATUS AND LOWER THREAD WINDING-SPOOL FOR DETECTING THE ENDING REGION OF LOWER THREAD OF SEWING MACHINE - The present invention relates to a lower thread ending region detection apparatus (LTERDA) that prevents problems associated with poor quality and re-work resulting from false stitchings due to being unable to detect the exhaustion of the lower thread during the sewing operation. The lower thread ending region detection apparatus (LTERDA) comprises the following: a light control unit (LCU), which contacts a part of lower thread wound on a thread bobbin and activates or inactivates at least one of the functions of emitting light, reflecting light, passing or penetrating light and blocking light, due to the effect of the physical movement force (PMF) generated depending on whether the lower thread of the ending region is unwound; a light receiving unit (LRU), which receives the light transferred out by the light control unit (LCU) and outputs a detection signal; and a control and notification unit (CNU), which analyzes the detection signal output from the light receiving unit (LRU) to determine whether the lower thread has reached the ending region and outputs the result to the user.07-04-2013
112241000 Take-ups 2
20130125802SEWING MACHINE - There is provided a needle thread tension controller that can control a magnitude of tension on a needle thread for each stitch, that can draw the needle thread with a slim chance of occurrence of a thread break, that easily, accurately detects occurrence of the thread break when the thread break has occurred, and that does not cause any excess or deficiency of a quantity of accumulated thread, which would otherwise be caused by drawing a needle thread. There are provided an upstream grip section 05-23-2013
20090277367Thread Take-up Lever for a Sewing Machine - A thread take-up lever for a sewing machine is mounted on the sewing machine and can prevent a thread from disengaging from a thread-receiving portion. The thread take-up lever is disposed with a C-shaped thread-receiving portion having an open recess. Adjacent to the open recess is provided at least one positioning portion for fixing a thread-stopping member. One end of the thread-stopping member is fixed to the positioning portion, and an elastic stopping portion extends from the other end of the thread-stopping member. The stopping portion is formed with a free end abutted against an inner periphery of the open recess. The free end can be pushed away by the thread, and then the free end will automatically return to its original position immediately to abut against the open recess again, thus forming a structure to prevent the thread from disengaging from the thread-receiving portion.11-12-2009
112279000 Bobbin winding 1
20090050039Bobbin thread winder and sewing machine equipped therewith - A bobbin thread winder mounted in an arm of a sewing machine to wind thread from thread supply onto a bobbin includes a thread winding shaft to which the bobbin is set and which is rotated by a timing pulley, a thread winding shaft gear attached to an end side of the shaft and having a first gear portion rotatable coaxially with the shaft, a second gear portion formed integrally on the timing pulley so as to be mesh-engageable with the first gear portion, and a torque limiter mechanism transmitting rotation of the shaft gear to the shaft when load exerted on the shaft is below a predetermined value, the torque limiter mechanism cutting off transmission of rotation of the shaft gear so that rotation of the shaft gear is prevented from being transmitted to the shaft when load exerted on the shaft is not less than the predetermined value.02-26-2009
112284000 Linkage systems 1
20090249990Presser Foot Drive Structure for Embroidery Machine - A presser foot drive structure of an embroidery machine, by which a vertically movable presser foot for preventing a sheet of cloth to be sewn from rising in a sewing operation is vertically moved inside a sewing head. The presser foot drive structure includes a presser foot drive holder, which is vertically slidable and is mounted on the outer circumference of a needle bar, which is vertically driven; a presser foot drive shaft, which is disposed parallel to the needle bar via the presser foot drive holder; and the presser foot, which is disposed at the lower end of the presser foot drive shaft and vertically reciprocates. It is possible to reduce the stroke of a presser foot so that it is smaller than that of a needle bar, enhance the supporting force for a needle bar, and reduce the shaking of a presser foot.10-08-2009
112280000 Cooling 1
20120111250MOTOR PULLEY FOR OVERLOCK SEWING MACHINE - A motor pulley for an overlock sewing machine is provided. The motor pulley includes a frame which forms a body of the pulley, and a plurality of ribs which are integrally formed with the frame. Each rib is oriented in a radial direction at a predetermined angle displaced from an axial center line of the pulley. The motor pulley further includes a ramp which is formed on one side surface of each of the ribs, and a slot which is formed in the pulley so that outside air can enter the motor pulley. The motor pulley of the present invention increases the flow rate of air that is blown from the pulley to a motor of the overlock sewing machine. Furthermore, the path of air flow of the motor pulley is improved, thus reducing a loss of air flow and increasing the flow rate of air.05-10-2012
20110011318SPOOL HOLDER AND SEWING MACHINE PROVIDED THEREWITH - A spool holder includes a spool holder base to which a plurality of thread spools is attachable, and a support base having a pivoting member. The spool holder base is a divided spool holder base and includes a first spool holder base having one end pivotally mounted on the pivoting member so that the first base is swingable, a second spool holder base continuous to the other end of the first base and a connection connecting the first and second bases. The divided spool holder base is switchable between a storage position where the spool holder bases are adjacent so as to be parallel to each other and a use position where the first base is swung about the pivoting member and the second base is swung so that the spool holder bases are spread so as to be nonparallel to each other.01-20-2011
20100242821Multi-needle sewing machine - A multi-needle sewing machine including a needle-bar case transfer mechanism transferring a needle-bar case relative to a sewing machine body and a first wiring and a second wiring each connected to an electrical component provided at the needle-bar case and that is extended across the sewing machine body and the needle-bar case. The first and the second wiring are held such that the first wiring and the second wiring are separated in a direction of transfer of the needle-bar case and a first intermediate portion of the first wiring and a second intermediate portion of the second wiring are curved so as to either cross over or proximate one another to allow the first wiring and the second wiring to be moved relative to one another at the first intermediate portion and the second intermediate portion.09-30-2010
20100242820Illumination device for multineedle sewing machine and the multineedle sewing machine - An illumination device for a multineedle sewing machine includes an illuminating member which has a light source and located at a lateral side of a needle bar case and is disposed so as to open portions of needle bars and portions of needles, a light amount adjusting unit which adjusts an amount of light of the light source, and a control unit which controls the light amount adjusting unit with movement of the needle bar case by the needle bar case moving mechanism together with the illuminating member so that a predetermined illuminance is maintained at least in part of an illuminated area which is illuminated by the light source. The part of the illuminated area is located near the needle drop position.09-30-2010
20100192823Color pin counting system - The Color Pin Counting System allows needle workers who stitch by hand, and are working on a large design (with 32 to 40 threads per inch) to start and maintain a method of keeping track of threads. The method utilizes 10 pins with jeweled or colored tops. Each pin represents ten linen or canvas threads. After outlining the design area with basting stitches or a marking pen or pencil, one can easily count the threads in the design to find a starting point for stitching. The Color Pin Counting System solves the dilemma of losing place. The primary advantage of the invention is to allow a needle worker to complete a large design while keeping track of the many threads.08-05-2010
20110253020Marking tool, kit and method of use - A reusable marking system for use in visualizing, designating and synchronizing the rows, columns or blocks of fabric used in quilt designs is disclosed. The marking system utilizes a plurality of pre-sequenced, pin-type, marking tools to designate the specific order of quilt designs for final assembly. The present invention also includes a kit for receiving, organizing and storing the marking tools.10-20-2011
20130098280SEWING MACHINE AUXILIARY STORAGE COMPARTMENT - A sewing machine auxiliary storage compartment is provided that can be attached to or detached from a sewing machine body part and that allows small articles such as accessories to be taken out therefrom or put thereinto even during sewing. Upper and lower parts are attached slidably with respect to each other. The upper part 04-25-2013

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