| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 112302000 | Thread guiding or handling | 15 |
| 20080236466 | SEWING MACHINE - A sewing machine includes an upper looper formed with a thread hole, an upper looper shaft which oscillates the upper looper between an upper position and a lower position, switching means operable to switch a coupled state and a decoupled state between the upper looper and the upper looper shaft, moving means for moving the upper looper, which has been decoupled from the upper looper shaft by the switching means, to the lower position, a thread guiding pipe formed with a thread discharging port, and first operating means operable to decouple the upper looper and the upper looper shaft via the switching means, and to move the thread discharging port of the thread guiding pipe to a position at which the thread discharging port is aligned with the thread hole of the upper looper in the lower position. | 10-02-2008 |
| 20090031936 | THREAD FEEDING APPARATUS FOR AN EMBROIDERING MACHINE - The present invention relates to a thread feeding apparatus for an embroidering machine, comprising a thread tension adjuster including a thread tension adjusting body and a thread winding unit; a thread take-up unit including a thread retainer and oscillating to tense and release the upper thread; a thread take-out unit including a thread take-out lever and retaining the upper thread; a driver driving the thread winding unit to rotate and the thread take-out lever to reciprocate; a rotating motion transformer rotating the thread winding unit to wind the upper thread on the thread tension adjusting body; and a straight line motion transformer and moving the thread take-out lever to retain the upper thread on the thread retainer. Thus, a single driver is used for winding an upper thread and retaining the upper thread, thereby enhancing productivity. Further, the number of components is reduced. | 02-05-2009 |
| 20090056609 | THREAD SUPPLYING APPARATUS FOR EMBROIDERING MACHINE - Disclosed is a thread supplying apparatus for an embroidering machine, including: at least one pair of guides which comprises a thread guiding part formed with a thread moving path guiding each thread supplied from a plurality of bobbins to a needle working part and is continually formed along the thread moving path and coupled to each other with a spacing portion therebetween; a thread spacer member to take up the thread passed through the spacing portion and to space the thread from the thread moving path to put the thread on a standby state in which the thread standbys to be supplied to the needle working part from a working state in which the thread moves to the needle working part; and a thread maintaining member provided in the thread guiding part and to apply a tension force to the thread spaced from the thread moving path, and to maintain the thread on the standby state. | 03-05-2009 |
| 20110011319 | Spool holder and sewing machine provided therewith - A spool holder includes a spool base and a thread guide mechanism including a thread guide member having thread guide portions guiding the threads extending from thread spools, respectively and a divided support pillar disposed so as to support the guide member on the spool base and including an upper support pillar having an upper end swingably mounted on the guide member and a lower support pillar having a lower end which is swingably mounted on the spool base, and a holding unit which holds the divided support pillar so that the pillar is switchable between a first position where both pillars are substantially vertically lined so that the guide member is located at an upper position in its use and a second position where both support pillars are bent at the connecting part so that the guide member is located at an accommodation position in its non-use. | 01-20-2011 |
| 20110048304 | SEWING MACHINE SYSTEM AND THREAD SPOOL STORAGE DEVICE - A sewing machine system is disclosed that is configured by a sewing machine and a thread spool storage device communicably connected by way of a communication element. The sewing machine is provided with a compartment identifier that searches and finds thread color information pertaining to thread color data contained in the pattern data when a selection of pattern data is validated by a pattern selection validator. The compartment identifier transmits the compartment identification for identifying a location of the compartment of the thread spool storage device that is mapped to the found thread color information. Based on the compartment identification, the thread spool storage indicates the location of the compartment identified by the compartment identification. | 03-03-2011 |
| 20120012043 | THREAD SPOOL STAND DEVICE AND SEWING MACHINE PROVIDED WITH THREAD SPOOL STAND DEVICE - A thread spool stand device is disclosed. The thread spool stand device includes a thread spool base and a thread spool pin that has a base end thereof secured to the thread spool base and that allows attachment of a thread spool. The thread spool stand device further includes a positioning mechanism that determines position of attachment of the thread spool relative to the thread spool pin. The positioning mechanism includes a contact section that contacts an inner peripheral surface of a core of the thread spool. The contact section is radially movable responsive to variation in an inner diameter of the core such that the contact section expands radially outward or contracts radially inward to be equally spaced from an axial center of the thread spool pin. | 01-19-2012 |
| 20120125245 | Thread Guide For Sewing And Embroidery Machines - A thread guide device for use with sewing and embroidering machines is adjustable to accommodate a variety of differently dimensioned thread spools or cones and is adapted for use with machines having a horizontally disposed thread spool support rod. The thread guide device includes a base having a support rod for supporting a spool or cone of thread on a rotor journalled for rotation on the support rod and dimensioned for insertion into the core of a spool or cone of thread. The rotor has a tapered end portion for accommodating spools or cones of different sizes. A wire loop thread guide secured to the base and mounted for selective lateral adjustment relative to the support rod has a first portion disposed within a slot of a slotted arm and a second portion provided with a coil wrapped around the slotted arm. A set screw secures a tapered retaining cap having a central axial aperture receiving the support rod to the support rod. A free floating thread retaining ring placed over an upper portion of a core of a thread spool or cone, allowing thread to be fed between the retaining ring and the core. A support ball mounted in an adjusted position along on the support rod by a set screw limits off-center movement of a thread spool or cone. The thread guide may be mounted on a ball having a cylindrical aperture slidably receiving the adjustment rod therethrough, such that the thread guide is selectively and independently adjustable in two perpendicular linear directions and also mounted for selective and independent adjustment around a first axis of rotation and a second perpendicular axis of rotation. | 05-24-2012 |
| 20120222599 | ACTIVE THREAD FEED MECHANISM FOR A SEWING MACHINE - A thread feeding mechanism for actively feeding embroidery thread out of a cartridge through a hollow needle, such that a thread break at or near the needle tip is automatically overcome through normal operation. | 09-06-2012 |
| 20120222600 | METHOD AND DEVICE FOR DYNAMICALLY CONTROLLING STITCH FORMATION IN A SEWING DEVICE - A sewing device includes a material wrapped around a spool (the spool rotating around an axis), and a needle with a hole through which the material passes. A material feeding mechanism moves the needle and feeds the material in a feeding direction, thereby unraveling the material from the spool and stitching the material into a workpiece. A controller controls the material feeding mechanism to move the needle to a first rest position above a top surface of the workpiece. The first rest position is determined by the following formula: | 09-06-2012 |
| 20120222601 | METHOD AND DEVICE FOR ABSORBING INITIAL FORCE IN A THREAD DELIVERY DEVICE - A material feeding device includes material wrapped around a spool, the spool rotating around an axis. A material feeding mechanism feeds the material in a feeding direction, thereby unraveling the material from the spool. A force deflection device is arranged between the spool and the material feeding mechanism, and is connected to the material. The force deflection device is configured to as to deform physically when the material feeding mechanism applies an initial feeding force to the material. | 09-06-2012 |
| 20120291682 | METHOD OF FEEDING THREAD TO A SEWING MACHINE AND SEWING MACHINE THREAD FEED - A sewing machine thread feed for a supplying sewing thread to a sewing machine, the feed including: a guide mechanism for guiding sewing thread to a needle of the sewing machine; first and second spools carrying first and second filaments respectively, one of the spools carrying a low-melt filament and the other carrying a textile filament; first and second retention mechanisms for retaining the first and second spools respectively in position against force applied to them when filament is drawn off; the first and second filaments run from the first and second spools respectively to the guide mechanism; wherein the first filament runs from the first spool, through the centre of the second spool, so that the action of the second filament, when being drawn off the second spool, causes inter-winding of the first and second filaments to create composite sewing thread. | 11-22-2012 |
| 20130269579 | THREADING DEVICE FOR SEWING MACHINE LOWER LOOPER - A threading device for a sewing machine lower looper is disclosed that can thread a lower looper safely and reliably by reliably preventing a main shaft from rotating when an operation of threading the lower looper is carried out | 10-17-2013 |
| 20150013583 | THREAD HOLDING MECHANISM OF SEWING MACHINE, NEEDLE THREADER THEREOF, AND SEWING MACHINE - A thread holding mechanism of a sewing machine which holds a thread supplied from a thread supply source includes a thread gripper unit that grips one end of a supplied thread, and a thread presser unit structured in a unified manner with the thread gripper unit and provided between the thread gripper unit and the thread supply source. Provided at the thread-supply-source side is a thread guide that guides another end of the thread, and when the thread gripper unit descends below the thread guide, the thread presser unit abuts the thread. | 01-15-2015 |
| 20160145787 | THREADING DEVICE OF A SEWING MACHINE - A threading device of a sewing machine includes a flow path switching member, a base portion, and a plurality of thread introducing portions. The flow path switching member includes a gaseous body inlet portion for receiving a compressed gaseous body, a gaseous body outlet portion provided to communicate with the gaseous body inlet portion for exhausting the gaseous body, and a cylindrical outer surface portion at which the gaseous body outlet portion is opened. The base portion includes a cylindrical inner surface portion into which the cylindrical outer surface portion of the flow path switching member is inserted and for supporting the flow path switching member in a rotatable manner, and a plurality of flow paths formed to communicate with the cylindrical inner surface portion. The plurality of thread introducing portions are provided at the base portion to communicate with respective outlet sides of the plurality of flow paths. | 05-26-2016 |
| 20160160417 | OVERLOCK SEWING MACHINE - A overlock sewing machine includes a switch limiting arm rockable integrally with a main shaft fixing operating arm and an arm including arms which are actuated by operating a threading switching knob to engage with the switch limiting arm to rock a rocking lever portion and being engageable with a slide plate to move the position of the slide plate to a sewing executable position upon operating the threading switching knob to the sewing executing position side. | 06-09-2016 |
