Patent application number | Description | Published |
20080196646 | Sewing machine and computer-readable recording medium with recorded sewing machine control program - A sewing machine includes a needle bar that is equipped with a sewing needle at a lower end of the needle bar, a presser bar that is equipped with a presser foot at a lower end of the presser bar, which holds down a work cloth, a sewing machine motor which is a driving source that drives the needle bar in an up and down direction, and a switching device that switches between a normal mode in which the needle bar is driven in the up and down direction to form stitches and a practice mode in which the sewing machine is operated in a condition where at least the needle bar is not driven. | 08-21-2008 |
20080210147 | Sewing machine and computer-readable recording medium storing sewing machine control program - A sewing machine that sews a work cloth being moved by a user includes a detection device that detects the work cloth, a movement calculation device that calculates movement data of the work cloth, a movement data storage device that stores the movement data, a movement data creation device that causes the detection device and the movement calculation device to respectively detect the work cloth and calculate the movement data for each stitch, and that stores the movement data into the movement data storage device, a line segment specification device that specifies a line segment based on the movement data, a determination device that determines whether a stitch to be formed next will overlap with an already formed stitch corresponding to the specified line segment, and an error control device that performs an error correction operation based on a determination result. | 09-04-2008 |
20080229991 | Sewing machine and computer-readable recording medium with recorded sewing machine control program - A sewing machine for a user to perform sewing while moving a work cloth includes: a detecting device that detects the work cloth; a movement calculating device that calculates, by two-dimensional coordinate data, a movement direction and a movement quantity of the work cloth between previous detection and current detection of the work cloth when the work cloth is detected; a movement data storage device that stores movement data serving as two-dimensional coordinate data indicative of the movement direction and the movement quantity; a movement data creating device that detects the work cloth on a one by one needle basis of sewing, calculates the movement data, and stores the calculated data in the movement data storage device; a cloth feed mechanism that moves the work cloth; and a reproduction sewing control device that performs sewing while moving the work cloth based on the movement data stored in the movement data storage device. | 09-25-2008 |
20080229992 | Sewing machine and computer-readable recording medium with recorded sewing machine control program - A sewing machine that enables a user to perform sewing while moving a piece of work cloth, the sewing machine including: a main shaft that drives a needle bar equipped with a sewing needle, a sewing machine motor that rotary-drives the main shaft, a detection device that detects an actual movement distance of the piece of work cloth, a target pitch storage device that stores a predetermined length as a target pitch, which is a target value of stitch pitches of the piece of work cloth, an agreement degree calculation device that calculates an agreement degree between the target pitch and a stitch pitch in actual sewing that is to be determined based on the actual movement distance of the piece of work cloth which is detected by the detection device; and a notification device that notifies of the agreement degree calculated by the agreement degree calculation device. | 09-25-2008 |
20090007829 | Sewing machine and computer readable medium - A sewing machine includes a sewing machine motor that vertically drives a sewing needle via a main shaft; a sewing speed commander that produces a command sewing speed determined by rotational speed of the sewing machine motor; a stitch-pitch specifier that specifies a stitch pitch to be applied to manually fed sewing operation; a consumed thread amount detector that detects a consumed needle-thread amount in each ongoing sewing cycle; a sewing speed controller that controls sewing speed at the command sewing speed when the command sewing speed is equal to or less than a predetermined reference sewing speed, and that controls sewing speed at a target sewing speed calculated based on the consumed needle-thread amount and the stitch pitch when the command sewing speed is greater than the reference sewing speed. | 01-08-2009 |
20090101053 | Sewing machine and computer readable medium storing a sewing machine control program - A sewing machine including a main shaft; a motor driving the main shaft; a needle bar; a sewing needle attached to a lower end of the needle bar; a needle-bar drive mechanism driven by the main shaft and vertically moving the needle bar; a speed setter setting a rotational speed of the main shaft; a needle-position detector detecting a vertical position of the sewing needle or the needle bar; a main shaft speed detector; a motor controller; and a needle plate; wherein the motor controller executes at least either of a first control decelerating the main shaft below the set rotational speed when the lower end of the sewing needle is above the needle plate, or a second control accelerating the main shaft above the set speed when the lower end of the sewing needle is positioned below the needle plate based on detected results provided by the detectors. | 04-23-2009 |
20090107374 | Sewing machine and computer readable medium storing a fastening stitch processing program - A sewing machine capable of mode switching between a normal sewing mode and a free motion sewing mode including a feed dog switcher that switches a feed dog between an active state in which the feed dog is moved above and below a needle plate and an inactive state in which the feed dog is lowered below the needle plate, a first instruction issuer that instructs execution of fastening stitching at a beginning of pattern sewing sequence, a second instruction issuer that instructs execution of fastening stitching at an end of pattern sewing sequence, and a controller that, when in the free motion sewing mode, activates the feed dog by the feed dog switcher in response to an incoming instruction signal from the first or the second instruction issuer to execute fastening stitching through control of feed dog based on fastening stitching data to longitudinally feed a workpiece cloth. | 04-30-2009 |
20090128350 | Sewing machine and computer readable medium - A sewing machine including a maintenance information storage that stores maintenance information; an alert element that communicates maintenance information; a cumulative data storage that stores cumulative data of at least either of a sew time or a stitch count; a determiner that determines whether or not a predetermined timing for communicating the maintenance information has been reached based on the cumulative data; an alert count storage that stores an alert count of the maintenance information communicated; and an alert controller that, when determined by the determiner to have reached the predetermined timing for communicating the maintenance information, controls the alert element to communicate the maintenance information for a predetermined number of times based on the alert count. | 05-21-2009 |
20090205549 | Sewing machine and computer readable medium storing sewing machine control program - A sewing machine capable of sewing a manually moved workpiece cloth in free motion includes a carrier that carries the workpiece cloth and being manually moved to move the workpiece cloth; a support element that movably supports the carrier; a movement amount detector that detects an amount of carrier movement; a specifier that specifies a stitch pitch; a comparator that produces a comparison of the amount of carrier movement with the stitch pitch; a regulator provided at the support element and that regulates carrier movement; and a controller that controls the regulator such that the amount of carrier movement does not exceed the stitch pitch based on the comparison produced by the comparator. | 08-20-2009 |
20090312861 | Sewing machine and computer-readable medium storing a program for sewing buttonhole - A sewing machine that includes an image capturing device and a sewing device. The image capturing device captures an image, and the sewing device sews a buttonhole having a length in accordance with a shape of the button, based on an image of a button captured by the image capturing device. | 12-17-2009 |
20100031860 | Sewing machine - A sewing machine including a needle bar; a sewing needle attached to the lower end of the needle bar; a needle bar drive mechanism vertically driving the needle bar; a presser foot capable of applying releasable pressure on a workpiece cloth and that releases the pressure to allow manual movement and sewing of the workpiece cloth; a regulatory needle including a tip and being capable of assuming a pierced state where the tip is pierced through the workpiece cloth and a non-pierced state, wherein the regulatory needle is moved along with the workpiece cloth while retaining the pierced state of the tip; a regulatory needle drive unit vertically driving the regulatory needle between the pierced state and the non-pierced state in coordination with vertical movement of the sewing needle; and a regulatory needle regulator limiting horizontal movement of the regulatory needle so as not to exceed a predetermined stitch pitch. | 02-11-2010 |
20100242818 | Sewing machine and computer-readable medium storing control program executable on sewing machine - A sewing machine that is capable of sewing an embroidery pattern on a work cloth held by an embroidery frame includes a display device that is capable of displaying at least one of an image and embroidery information, a detection device that detects an occurrence of a thread break, an image capture device that is capable of capturing an image of at least an area including a needle drop point, a display control device that displays an image captured by the image capture device and an operation key on the display device in a case where the detection device has detected the occurrence of the thread break, the operation key being to be used to transfer the embroidery frame by at least one stitch, and a sewing control device that causes the embroidery frame to be transferred based on a number of stitches specified by operation of the operation key. | 09-30-2010 |