Brother Kogyo Kabushiki-kaisha

Noboru Mizuno

Yasuhiko Kawaguchi

Shinya Fujihara

Tomoyasu Niizeki

Masashi Tokura

Masahiko Nagai

Yoshihisa Shoji

Shinichi Nishida

Masayuki Hori

Kazutoshi Hayashi

Hiroshi Yamasaki

Yoshiyuki Uyama

Toshihiro Hanai

Rino Nakama

A punch data generating device that generates punch data used in an embroiderable sewing machine for punch engraving a pattern on a workpiece by attaching a punch needle that punch engraves a surface of the workpiece in dot-by-dot strokes on a needle bar of the embroiderable sewing machine and moving the punch needle up and down while transferring the workpiece in two predetermined directions by a transfer mechanism. The punch data generating device includes a data generator that generates the punch data so that when punch engraving a plurality of patterns, the patterns are sequentially punch engraved one by one.

Punch data generating device and computer readable medium storing punch data generating program

A multi-needle sewing machine including a plurality of needle bars including a specific needle bar allowing detachable attachment of a punch needle that punch engraves a surface of a punch workpiece in dot-by-dot strokes; a transfer mechanism that allows detachable attachment of a punch workpiece holder a detector that detects the attachment of the punch workpiece holder on the transfer mechanism; and a controller that when the attachment of the punch workpiece holder is detected by the detector, executes a punch engraving operation on the punch workpiece with the punch needle by selecting the specific needle bar and by controlling a needle-bar selector/driver mechanism and the transfer mechanism based on punch engraving pattern data which is pre-stored or given by external components.

Multi-needle embroidery sewing machine

A sewing machine includes a needle bar to which an engraving needle is attached and is capable of executing an engraving process of forming an engraved pattern on a workpiece. The sewing machine further includes a heightwise position adjusting mechanism adjusting a mounting heightwise position of the engraving needle relative to the needle bar, a unit imaging the engraved marks formed on the workpiece by the engraving needle, thereby obtaining an image of each engraved mark, a detection unit extracting a region of each engraved mark from the image to detect a size of each engraved mark, a determination unit comparing the size of each engraved mark with a reference value stored, determining a mounting heightwise position of the engraving needle, and a unit informing of information for adjusting the mounting heightwise position of the engraving needle according to determination made by the determination unit.

Sewing machine with engraving function

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.

Sewing machine with detachable needle plate

A sewing machine includes a sewing controller that controls sewing machine components, an imaging element capable of capturing facial images of a sewing machine user; a settings storage that stores settings for preset modes, the settings comprising items pertaining to sewing machine functions; a user information storage that stores facial image data of the user captured by the imaging element with mapping to the settings of the mode registered with the user; a verifier that verifies whether or not image data that matches the facial image data captured by the imaging element at sewing operation start exists in the user information storage; and an instruction controller that reads the settings from the user information storage when receiving a positive verification result from the verifier, and that instructs the sewing controller to control the sewing machine components based on the settings read.

Sewing machine and computer readable medium

A needle bar thread guide for a sewing machine includes a thread guide body mounted on a needle bar and having a threading portion for threading the sewing machine, an introducing portion formed on the thread guide body for introducing a needle thread to the threading portion, and a fall-off preventing member disposed at a position near to spaces over and below the thread guide body. The fall-off preventing member allows the needle thread to be introduced via the introducing portion to the threading portion and prevents the needle thread introduced to the threading portion from falling off from the introducing portion.

Needle bar thread guide for sewing machine

A threader for a sewing machine includes a thread tension regulator, a thread take-up spring, a thread take-up lever, a thread transferer setting a needle thread drawn from a thread supply onto the thread tension regulator, the thread take-up spring and the thread take-up lever so that the thread tension regulator, the thread take-up spring and the thread take-up lever are threaded, a path forming member forming a guide path guiding the thread transferee so that the thread transferer is moved, a driving unit driving the thread transferer, and a drive transmitting member transmitting drive of the driving unit to the thread transferer.

Threader for sewing machine

A sewing machine includes a needle bar reciprocally movable up and down, a thread take-up lever reciprocally swingable up and down, a thread supply which supplies a needle thread to the needle bar carrying the sewing needle, a plurality of thread guides including the thread take-up lever, an automatic threading apparatus automatically carrying the needle thread extending from the thread supply and passing the needle thread through the thread guides including the thread take-up lever, a first preparatory path formed for threading so that the needle thread extending from the thread supply can be passed through the thread guides by the automatic threading apparatus, and a second preparatory path formed for threading so that the needle thread extending from the thread supply can manually be passed through the thread guides, The thread take-up lever is displaced within a range of reciprocal swing so that threading is possible for at least one of the first and second preparatory paths.

Sewing machine with automatic threading apparatus

A sewing machine includes a needle bar holding a sewing needle having an eye hole, a needle threading mechanism including a threading hook passing a needle thread through the eye hole of the sewing needle, a presser bar with a presser foot attached to its lower end, a vertically moving mechanism vertically moving the presser bar, a drive mechanism driving the vertically moving mechanism, a threading operation unit operating the needle threading mechanism, and a drive mechanism controlling unit controlling the drive mechanism vertically moving the presser bar to a position where interference between the presser foot and threading hook is avoided when the needle threading operation unit is operated.

Sewing machine with automatic needle threader

A sewing machine includes a thread transferring mechanism automatically hooking onto thread hooking sections a needle thread which extends from a thread supply and which is retained in a predetermined thread preparatory path while retaining the needle thread so that the needle thread can be turned over to a needle threading mechanism, and a control unit which controls a thread tension adjusting unit so that tension applied to the needle thread becomes a predetermined tension that correlates with a transfer position of the needle thread transferred by the thread transferring mechanism.

Sewing machine with automatic threader

A sewing machine includes a plurality of thread hooking sections including a thread take-up lever and a thread tension regulator, and a thread guide thread hook mechanism having a thread hook member which is moveable nearly parallel to the vertical surface from a stand-by position to a thread hooking position. The sewing machine is configured to hook the extent of the needle thread from a thread transferring member moved to the vicinity of the eye to the thread take-up lever to hook it onto the needle bar thread guide.

Growing community of inventors

Nagoya, Japan

Noboru Mizuno