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7469649 |
Sewing machine
Support section for contacting and movably supporting a string-shaped material is provided between a material holder and a guide member, and it supports the material, paid out from the holder, in a...
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7308333 |
Computerized stitching including embroidering
A stitching apparatus with thread tension control is provided. Tension in a thread is monitored during stitching apparatus operations, and remedial action is taken in response to the detection of...
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7210417 |
Stitching method and apparatus employing thread payout detection
A method and apparatus for producing uniform stitches in a stack of fabric layers while allowing a user to manually guide the stack across a planar surface beneath a stitch head. Stitch head...
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7162966 |
Sewing or embroidery machine
To determine the thread supply on a lower-thread bobbin ( 17 ), holes ( 19 ) are arranged in the shape of a spiral in a flange ( 21 ) of the bobbin. Light from a light source ( 35 ), which is...
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7028626 |
Sewing apparatus using thread cassette
A sewing apparatus such as a sewing machine includes a sewing mechanism in which a needle thread is used, a cassette mount to which a thread cassette, while in a closed state, holding the needle...
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6996451 |
Control device for sewing machines
The present disclosure relates to a control device to control a sewing machine which executes a sewing operation using a bobbin thread wound on a bobbin and a needle thread by the drive of the...
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6871605 |
Computerized stitching including embroidering
A stitching apparatus is disclosed which has at least one active thread feeder and is operable to adjust stitching operation based on the condition of a thread being stitched. The active thread...
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6863007 |
Method for determining a lower thread supply, and a sewing machine having a lower thread supply monitoring device
From a light source ( 51 ), light beams ( 57 ) are directed tangentially through the hook body ( 17 ), the hook base ( 27 ), and the bobbin case ( 28 ), onto a light receiver ( 53 ). Using the time...
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6832841 |
Sewing machine with illuminating led lamp
A sewing machine includes a sewing bed on which cloth to be sewn is placed, a pillar extending upward from the bed, a sewing arm extending horizontally from the pillar so as to be located over the...
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6802273 |
Thread breakage detection device for sewing machine
A stitch balancing thread tension 11 of a sewing machine 1 includes a rotary disk 17 having a surface extending perpendicular to an axial direction of a shaft 16 on which the rotary disk ...
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6729252 |
Thread device for sewing machine
A thread winder unit, which is capable of winding thread of spools set on spool bars, is removably attached to a machine body. The sewing machine includes a feed motor for feeding the thread during...
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6422163 |
Embroidery machine and method for transferring an embroidery frame backward in case of thread breakage
A method for transferring an embroidery frame backward in case of thread breakage, includes the steps of: a) detecting the thread breakage to generate a thread breakage signal if the thread...
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6405097 |
Operation data processing device
An operation data processing device that summarizes trouble situations that occur during sewing operations. A log data storing device generates and stores log data based on an operation state of...
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6286444 |
Automatic bobbin changer and method
An apparatus for automatically changing a bobbin case on a quilting machine having a hook drive operatively supporting the bobbin case during a stitching operation. The apparatus includes a staging...
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6170418 |
Method and arrangement for transmitting yarn-specific data during rewinding processes for producing two-thread lock stitch seams which are to be documented
Method for transmitting thread-specific data in re-reeling operations for the manufacture of two-thread lock stitch seams which have to be documented comprising the following steps: the bobbin...
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6142089 |
Sewing machine with improved shuttle drive control
A sewing machine includes a sewing machine motor, a main shaft driven by the sewing machine motor, a sewing needle driven by the main shaft, a shuttle for capturing a thread loop in cooperation...
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6092478 |
Apparatus and method for monitoring consumption of sewing thread supply
An apparatus for monitoring consumption of a supply of thread includes entry keys for allowing a user to input an initial supply of thread, and a minimum allowable supply of thread, and a detector...
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6012405 |
Method and apparatus for automatic adjustment of thread tension
A computerized stitching apparatus that automatically controls thread tension is disclosed. In one embodiment, at least two factors are used to determine the desired thread consumption for the next...
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5911186 |
Under thread detection device for sewing machine
In an under thread detection device for a sewing machine, a probe arm is located outside a rotary bobbin case, and is adapted to be accessible to a bobbin through a space provided at the rotary...
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5842432 |
Thread consumption detecting apparatus for a sewing machine
A thread consumption detecting apparatus includes an axial supporting shaft, a detector lever, a torsional spring, a proximity sensor, and a central processing unit (CPU). The detector lever...
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5839679 |
Bobbin thread winding apparatus
A bobbin thread winding apparatus which can reliably twine a bobbin thread around the bobbin within the bobbin case. With the reliable twining of the thread, the thread is not cut and also will...
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5788171 |
Method and apparatus for detecting residual bobbin thread in a sewing machine
An apparatus is disclosed which detects the residual quantity of bobbin thread on a sewing machine bobbin when the shuttle containing the bobbin is located at a specific phase position. The...
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5769016 |
Bobbin exchange judging apparatus
A residual thread removing device detects an amount of thread left in a bobbin of a sewing machine. The bobbin exchange time setting means sets a time to exchange a bobbin set in the sewing machine...
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5746145 |
Stitch quality monitoring system for sewing machines
Stitch quality monitoring system for use in combination with a sewing machine having one or more stitch threads and comprising sensor means for at least one of said one or more stitch threads for...
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5671689 |
Apparatus and method for monitoring predetermined seam characteristics
A sewn seam monitoring system for evaluating selected characteristics of seam formed from a plurality of fabric plies is disclosed comprising a vertically displaceable wheel for compressing and...
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5662054 |
Yarn fault detection for tufting machines
A controlled needle tufting machine has a cyclically reciprocating latch bar to which the needles may be selectively latched in accordance with a pattern to reciprocate and insert loops of yarn...
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5651324 |
Process and device for recognizing a residual amount of the hook thread in a sewing machine
In a process and device for monitoring a residual amount of hook thread in a double thread lockstitch sewing machine, a bobbin is used, which is divided into a large clamber and a small chamber due...
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5647291 |
Catch thread device for sewing machines
A catch thread device is provided for a sewing machine with a scanning element controlled by the upper thread in the rhythm of sewing. The scanning element triggers a signal for the operator and/or...
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5570646 |
Device for use with a bobbin-less coil of thread
A device, preferably of disc configuration, capable of being fastened to a bobbin-less coil of thread for indicating the non-rotation of the coil during a sewing operation. One side of the device...
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5533461 |
Pocket hemmer having a thread break sensor
An automatic hemming machine, including a multi-belt conveyor, for folding the top edge of a pocket to be subsequently sewn on a shirt and hemming it with a back binding tape, severing the binding...
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5383417 |
Needle thread stitch formation monitor
This invention relates to a method and apparatus for instantaneously monitoring the presence of properly and improperly formed needle thread stitches for all sewing machines with one or more...
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5359949 |
Sewing system having function to store operation-state data upon detection of abnormality
A sewing system including (A) a sewing device which includes (a) a sewing needle, (b) a first driver to reciprocate the needle, (c) a second driver to move the needle and a work sheet relative to...
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5353726 |
Method of monitoring the supply of looper thread of a double lock-stitch sewing machine
Fastened to the bobbin for reception of the supply of looper thread which is inserted in the looper of a sewing machine, there is a data carrier (22) in which there is stored data which describe...
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5339758 |
Remaining bobbin-thread amount measuring apparatus for sewing machine
An apparatus for measuring a remaining amount of a bobbin thread wound on a bobbin accommodated in a shuttle of a sewing machine, including a measurement bar displaceable along a displacement path...
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5322028 |
Apparatus for detecting amount of leftover lower thread in a sewing machine
A sewing machine is disclosed in which an expenditure of lower thread is calculated from an expenditure of an upper thread. The expenditure of the upper thread is determined from the amount of...
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5237944 |
Stitch-forming machine with a transducer and a control device
A stitch forming machine is provided including a transducer for determining the tension present in a thread, wherein the thread tension assumes a higher value during stitch formation and the...
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5233936 |
Method and apparatus for detecting skipped stitches for a chainstitch sewing machine
Apparatus and method for detecting skipped stitches for chainstitch sewing machines having a looper assembly using a needle thread movement sensor and/or a looper thread movement sensor in...
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5211121 |
Device for detecting remainder of bobbin thread in sewing machine
A bobbin thread remainder detecting device for detecting an amount of remainder of a bobbin thread wound up around a bobbin for a sewing machine, in which a winding leading end portion of the...
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5161475 |
Residual bobbin thread amount detecting apparatus for a sewing machine
A residual bobbin thread amount detection apparatus for a sewing machine which includes a hook rotating in association with a main shaft of the sewing machine and a bobbin rotatably mounted on the...
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5159890 |
Device for stopping the drive of a sewing machine in the case of a thread disturbance
A sewing machine is provided with a device for stopping the drive in the case of a thread disturbance. The device has a light source, a first light guide device for transmitting the light beams to...
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5143004 |
Sewing apparatus including automatic bobbin reloading
Sewing apparatus comprises a sewing needle, a bobbin for feeding thread to the sewing needle, a rotary housing containing the bobbin and its case a sensor for sensing the non-feeding of thread to...
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5140920 |
Apparatus for detecting skipped stitches
Apparatus for detecting skipped stitches for sewing machines having a bobbin-type assembly using a thread movement sensor for continuous monitoring of the presence of a needle thread in a beam...
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5107779 |
Process and device for recognizing missed stitches during the operation of a sewing machine
To recognize missed stitches during the operation of a sewing machine, a function, which represents the tensile force of a thread fed into a stitch-forming device depending on the angle of rotation...
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5103750 |
Sewing machine with bobbin thread monitor
According to a sewing machine with a bobbin thread monitor, the light emitted from a luminescence element is reflected by a bobbin thread or a rotating hook bobbin and received by a light receiving...
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5078067 |
Sewing machine with abnormal condition warning means for warning abnormal condition by changing color of light
A sewing machine comprising a sewing machine lamp for illuminating an area around an end of a sewing needle, and a plurality of color filters provided on a rotary disk which is rotated by a...
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5056442 |
Tight end detector for tufting machines
A tight end detector for tufting machines is disclosed which includes a modular switch bar assembly, a switch contact forming PC board thereon having a conductive stripe, insulating strip, a...
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5044292 |
Sewing machine with lower thread supply control means
An amount of a lower thread to be supplied from a bobbin in each stitch forming operation is first determined on a theoretical basis in accordance with the stitch control data stored in a pattern...
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5033400 |
Thread tensioning device for a sewing machine
A device on a sewing machine for controlling the tensile stress (F) applied to a thread as it is being fed in the sewing process, including a device for producing a frictional force acting on the...
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5027730 |
Sewing machine with a thread monitor for the thread of the bobbin
Thread monitor for monitoring double lock stitch shuttles or hooks and chain stitch machine shuttles or loopers. During normal operation of the sewing machine, the shuttle thread is used as a...
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5020461 |
Lower thread amount display device of sewing machine
In an apparatus for detecting and displaying a residual quantity of lower or under thread (12) of a sewing machine, an under-thread bobbin (10) is provided with transparent flange portions (10a)...
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