Abstract: A continuous line is set on a display region of an operation panel provided in a sewing machine M and a plurality of sewing patterns is automatically arranged along the continuous line based on sewing data selected from a ROM. Integrated sewing data related to a continuous sewing pattern including the sewing patterns is created, an operation of the sewing machine is controlled based on the integrated sewing data so that the continuous sewing pattern can be sewn onto a cloth.

Abstract: A sewing machine includes a needle, a holding frame having a stitchable area within which the needle is operable to perform stitching, storing means for storing sewing data on various embroidery patterns, indicating means for indicating, within the stitchable area, positions on the workpiece that is held by the holding frame, stitching region setting means for setting a stitching region in accordance with the positions indicated by the indicating means, embroidery pattern creating means for creating, in accordance with a position and a size of the stitching region, and based on the sewing data, embroidery pattern data on an embroidery pattern having a size that is fittable within the stitching region, and control means for controlling the needle and the holding frame to form the embroidery pattern on the workpiece within the stitching region in accordance with the embroidery pattern data.

Abstract: A cloth presser device of a sewing machine is provided. The cloth presser device includes a presser bar, a presser foot rotatably supported by the presser bar at an intermediate portion of the presser foot in a cloth feeding direction, an auxiliary presser rotatably coupled to the presser foot on an upstream side, in the cloth feeding direction, of a point at which the presser bar supports the presser foot, the auxiliary presser having a cloth pressing portion which presses a cloth on a downstream side of a portion of the auxiliary presser coupled to the presser foot, and a front presser spring attached to the presser bar and downwardly biasing the cloth pressing portion. A point at which the front presser spring presses the auxiliary presser is on a downstream side of the portion of the auxiliary presser coupled to the presser foot.

Abstract: A threading device of a sewing machine having a plurality of needles is provided. The threading device is configured to insert a thread through an eye of any one of the needles. The threading device includes a threading hook which moves forward to enter the eye of one of the needles and moves backward to catch and insert the thread through the eye, a threading mechanism which moves the threading hook to insert the thread, a selecting portion operable to select, among the plurality of needles, a needle through which the thread is to be inserted, a positioning mechanism which moves the threading hook to a position corresponding to the needle selected by operating the selecting portion, and a selected needle indicating device which distinguishably indicates the needle with respect to which the threading hook has been positioned by operating the selecting portion.

Abstract: A threading device includes a threading shaft holding a threading hook, a threading operation inputting mechanism from which a back-and-forth movement is given to the threading hook, a first supporting mechanism movably supporting the threading shaft in an X-axis direction, a second supporting mechanism movably supporting the threading shaft in a Y-axis direction, and a positioning mechanism which, when a movement operating portion is operated, moves the threading shaft along a path corresponding to an arrangement of each of the needles. The positioning mechanism includes a first cam mechanism which moves the threading shaft in the X-axis direction, and a second cam mechanism which moves the threading shaft in the second direction. The threading shaft is sequentially moved to positions corresponding to the arrangement of each of the needles in the horizontal directions in accordance with the operation of the movement operating portion.

Abstract: 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

Abstract: 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.

Abstract: A sewing machine includes an embroidery frame which holds a cloth marked with a reference line and a reference point, a display portion which displays a virtual reference line, a virtual reference point, and an embroidery pattern having a size larger than the embroidery frame, means for displaying a sewing region corresponding to the embroidery frame on the display portion such that a section of the embroidery pattern, the virtual reference line and the virtual reference point are displayed inside the sewing region, means for acquiring position information of the reference point and another point on the reference line, sewing data correcting means for correcting sewing data on the embroidery pattern by interrelating the position information with the virtual reference line and the virtual reference point, and means for sewing the section of the embroidery pattern in accordance with the sewing data corrected by the sewing data correcting means.

Abstract: An upper looper driving device of a sewing machine is provided. The device includes an upper looper driving shaft which is rotatable around an axis thereof, an upper looper holder having an upper end portion at which the upper looper is held, an upper looper swinging arm having one end portion supported by the upper looper driving shaft such that a position of the upper looper swinging arm is adjustable along an axial direction of the upper looper driving shaft and the other end portion to which the upper looper holder is rotatably coupled, and an upper looper guide slidably holding the upper looper holder. The upper looper guide is supported by a frame of the sewing machine such that a position of the upper looper guide is adjustable along a direction parallel to the axial direction of the upper looper driving shaft.

Abstract: A sleeve for a fluid-dynamic bearing is manufactured by molding to obtain a molded part, degreasing the molded part to obtain a degreased part, and sintering the degreased part. The molding includes placing a resin core having protrusions on an outer circumference thereof for transferring and forming dynamic-pressure generating grooves on the sleeve into a mold having a cavity corresponding to a shape of the sleeve, and injecting a molding material prepared by mixing a binder and metal or ceramic powders. The degreasing includes preparatory degreasing the molded part to remove a portion of the binder, and further degreasing the molded part, from which the portion of the binder is removed, by heating the molded part in a sintering furnace to thermally decompose the residual portion of the binder and the core. The sintering includes further heating the degreased part to sinter the metal powders or the ceramic powders.

Abstract: In a surface mounting apparatus having a pair of substrate fixing portions disposed opposite to each other and serving to support and fix opposed ends of a substrate respectively and a mounting head for mounting a component held by an attached nozzle on the substrate which is supported and fixed by the substrate fixing portion, including an air injecting portion disposed close to the substrate fixing portion and serving to inject air like a curtain from an outside of the substrate which is supported and fixed above an upper surface of the substrate, and an air suctioning portion disposed close to the other substrate fixing portion and serving to suction the air at the outside of the substrate which is opposed to an ejecting direction of the air.

Abstract: A darning width adjusting device for a sewing machine includes a lower knife holder supported by a sewing machine frame such that a moving position of the lower knife holder is adjustable in a direction orthogonal to a cloth feeding direction, a thread-sliding piece which sets a darning width by picking up a thread at a tip thereof in the vicinity of a stitch point, a thread-sliding piece holder supported by the sewing machine frame such that a moving position of the thread-sliding piece is adjustable in the orthogonal direction to the cloth feeding direction, a thread-sliding piece adjusting means for adjusting the moving position of the thread-sliding piece, and a lower knife holder adjusting means for adjusting the moving position of the lower knife holder to a position exceeding a outside marginal position of the thread-sliding piece.

Abstract: A dispenser has a pressure sensor enabled to detect a pressure precisely by forming a pressure sensor integrally with a syringe constructing a nozzle to thereby eliminate a pipeline or the like. The dispenser is provided for sucking and discharging a liquid from a nozzle by slidably moving a piston sliding in the inside of a syringe by a motor mounted in a body. A detection sensor for detecting the internal pressure of the inside of the syringe is integrally formed by connecting its air inlet directly to a through hole formed to extend to the inner face of the syringe.

Abstract: A sewing machine includes sewing means having cloth feeding means for feeding a cloth in a front and rear direction and needle oscillating means for oscillating a needle in a right and left direction, driving means for separately driving the cloth feeding means and the needle oscillating means, pattern storing means for storing a plurality of pattern data on sewing patterns to be formed by the sewing means, and control means including calculating means for randomly combining the plurality of pattern data stored in the pattern storing means to create sewing data. The control means controls the driving means based on the sewing data. The sewing machine creates an irregular combination pattern with complicatedness being suppressed in a selection of the sewing patterns.

Abstract: A suspension having a powder of RBC (rice bran ceramics) suspended in a liquid resin is used as a solid lubricant. The solid lubricant preferably has an RBC proportion of 22 to 74% by weight. The RBC preferably has a mean particle diameter not exceeding 5 ?m. An acrylsilicone resin is preferably used as the liquid resin used as the binder. The solid lubricant is applied onto the sliding surface of a sliding member made of a metal, any of various resins, etc. to form a dry film thereon.

Abstract: A sewing machine includes a needle, a needle bar which supports the needle, an upper feeding foot operable to feed the workpiece interlockingly with an up and down movement of the needle bar, a presser foot operable to press the workpiece, a holding bar which supports the presser foot, an actuator including an operating member operable to be changed to a first state, a second state or a no-load state, and a connecting portion which couples the operating member and the holding bar. The holding bar is constantly biased downward by a biasing force. The actuator moves the presser foot up against the first biasing force when the operating member is in the first state, and moves the presser foot down when the operating member is in the second state.

Abstract: A continuous line is set on a display region of an operation panel provided in a sewing machine M and a plurality of sewing patterns is automatically arranged along the continuous line based on sewing data selected from a ROM. Integrated sewing data related to a continuous sewing pattern including the sewing patterns is created, an operation of the sewing machine is controlled based on the integrated sewing data so that the continuous sewing pattern can be sewn onto a cloth.

Abstract: An embroidery sewing machine includes a needle, a needle driving section which vertically drives the needle, a cloth holding section which holds a cloth, a moving section which moves the cloth holding section along a plane, a storage section, an array calculating section and a control section. The array calculating section arranges a plurality of outlines of the piece in the sewing enabling region based on the cutting line data and the region data that are stored in the storage section, and obtains array data representing each arrangement position of the outlines of the piece and each rotating angles of the outlines of the piece in respective arrangement positions. The control section controls the moving section and the needle driving section in accordance with the array data and the cutting line data so as to form a cutting line of a seam on the cloth.

Abstract: A threading device for a sewing machine includes a needle bar provided with a guide member having a stopper portion, a threading shaft having a threading member, operation means having a guide groove formed in a spiral shape with respect to a rotating axis of the threading shaft, and a pin, which is fixed to the threading shaft, having both ends protruded outward in a radial direction with respect to the threading shaft. One end of the pin penetrates the guide groove while the other end of the pin engages with the stopper portion. The threading device further includes erroneous rotation preventing means which prevents the threading shaft from rotating in when the threading shaft moves downward, and permits the threading shaft to rotate when the second end of the pin engages with the stopper portion.

Abstract: A threading device for a sewing machine includes a needle bar provided with a guide member having a stopper portion, a threading shaft having a threading member, operation means having a guide groove formed in a spiral shape with respect to a rotating axis of the threading shaft, and a pin, which is fixed to the threading shaft, having both ends protruded outward in a radial direction with respect to the threading shaft. One end of the pin penetrates the geode groove while the other end of the pin engages with the stopper portion. The threading device further includes erroneous rotation preventing means which prevents the threading shaft from rotating in when the threading shaft moves downward, and permits the threading shaft to rotate when the second end of the pin engages with the stopper portion.