Abstract: A sewing machine includes a housing portion, a bed, a needle plate, an image capture device, a moving device, a command acquisition device, and a moving control device. The housing portion houses at least one needle bar. The needle plate is provided on the bed and includes a needle hole. The image capture device is adapted to capture an image of the needle hole. The moving device moves the image capture device in relation to the housing portion. The command acquisition device acquires a command to move the image capture device in relation to the housing portion. The moving control device controls the moving device in accordance with the command that has been acquired by the command acquisition device to move the image capture device in relation to the housing portion.

Abstract: A multi-needle sewing machine includes needle bars, presser feet, a support member configured to support the needle bars such that the needle bars can move up and down, a cutting member, a guide member configured to move between an extended position and a stand-by position, and a holding member configured to hold an end portion of a upper thread, the holding member including a fixed member that is mounted to the support member, movable members each of which is provided for one of the needle bars, and includes a guide portion formed by cutting a notch in an outer end portion on the needle bar side of the movable member, and elastic members each of which is provided for one of the movable members and configured to elastically energize the one of the movable members toward the fixed member.

Abstract: A sewing machine includes a bed, a needle plate, an image capture device, an auxiliary optical member, a switching device, a command acquisition device, and a control device. The needle plate is provided on the bed and includes a needle hole. The image capture device is adapted to capture an image facing downward from above the needle hole. The auxiliary optical member is adapted to transmit light to an image capture device side of the auxiliary optical member. The switching device switches the auxiliary optical member to one of being used and not being used. The command acquisition device acquires a command. In a case where the command has been acquired, the control device controls the switching device to switch the auxiliary optical member to one of being used and not being used in accordance with the command.

Abstract: An illumination device for a multineedle sewing machine includes an illuminating member which has a light source and located at a lateral side of a needle bar case and is disposed so as to open portions of needle bars and portions of needles, a light amount adjusting unit which adjusts an amount of light of the light source, and a control unit which controls the light amount adjusting unit with movement of the needle bar case by the needle bar case moving mechanism together with the illuminating member so that a predetermined illuminance is maintained at least in part of an illuminated area which is illuminated by the light source. The part of the illuminated area is located near the needle drop position.

Abstract: A multi-needle sewing machine including a needle-bar case transfer mechanism transferring a needle-bar case relative to a sewing machine body and a first wiring and a second wiring each connected to an electrical component provided at the needle-bar case and that is extended across the sewing machine body and the needle-bar case. The first and the second wiring are held such that the first wiring and the second wiring are separated in a direction of transfer of the needle-bar case and a first intermediate portion of the first wiring and a second intermediate portion of the second wiring are curved so as to either cross over or proximate one another to allow the first wiring and the second wiring to be moved relative to one another at the first intermediate portion and the second intermediate portion.

Abstract: A sewing machine having a threading path defined at a sewing machine head and being engaged with a needle thread to guide the needle thread in threading a sewing needle; a thread holder provided on the threading path and that includes a thread holding plate receiving the needle thread being introduced from outer to inner peripheral side of the thread holder to clamp the needle thread; a thread cutter provided on a faceplate covering the head and that cuts off a needle thread tip sequentially engaged with the threading path; a threader unit that passes the needle thread through a needle eye; and a passage resistance applier provided downstream relative to the thread holder and upstream relative to the thread cutter and that applies a predetermined amount of resistance on the needle thread passing therethrough to introduce the needle thread to the inner peripheral side of the needle holding plate.

Abstract: An illumination device for a multineedle sewing machine is disclosed. The sewing machine includes a plurality of needle bars having lower ends to which needles are attached respectively and a needle bar case supporting the needle bars so that the needle bars are movable upward and downward. The illumination device includes an illuminating member having a light source, and a support unit located in the needle bar case for supporting the illuminating member so that the illuminating member is switchable between an illuminating position where the illuminating member is located in front of the needle bars or the needles to illuminate a periphery of a needle point of the needle location point of the needle by the light source and a storage position where the illuminating member opens a front side of the needle bar or the needle and is located laterally with respect to the needle bar case.

Abstract: A knee lever a lever including a lever detachably attached to an attachment provided on a bed of a sewing machine; a knee rest mounted on the lever and operated by knee contact, with the lever being attached to the attachment; an adjustment mechanism allowing adjustment in position of knee contact of the knee rest; wherein the adjustment mechanism includes an engagement portion provided at the lever, and an engagement subject provided at the knee rest and being disengagably engaged with the engagement portion to switch a mounting position of the knee rest relative to the lever.

Abstract: A presser device for a sewing machine is disclosed. The presser device includes a presser bar; a presser foot provided at a lower end of the presser bar; a presser spring elastically biasing the presser foot downward; a presser-foot lifting lever moved between a lifted position and a lowered position for lifting/lowering of the presser foot; a speed restraining element producing resistance capable of slowing down the movement of the lever; and a speed-restraint switch mechanism that slows down the movement of the presser-foot lifting lever by allowing the speed restraining element to produce the resistance when the presser-foot lifting lever is moved from the lifted position to the lowered position, and that does not slow down the movement of the presser-foot lifting lever by not allowing the speed restraining element to produce the resistance when the presser-foot lifting lever is moved from the lowered position to the lifted position.

Abstract: 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.

Abstract: A needle threader for a sewing machine includes a threading mechanism including a threading hook mounted on a lower end of a threading shaft and a thread guide member. The threading hook and the thread guide member are movable among a thread guide preparation position where the threading hook and the thread guide member are located near a height position of a needle clamp, a threading operation position where a threading operation is carried out with the threading hook being level with an eye of a needle, and a retreat position which is located above the thread guide preparation position and to which the threading hook and the thread guide member are retreated. A vertical moving mechanism moves the threading shaft vertically so that the threading mechanism is moved among the thread guide preparation position, the threading operation position and the retreat position.

Abstract: A presser foot device for a sewing machine includes a presser bar mounted on a head provided at a distal end of an arm and having a lower end having a presser foot, the presser foot device lifting the presser foot upward and downward together with the presser bar, the presser foot device further including a first shaft, a support unit configured to support the first shaft, and a presser foot lifting lever configured to move the presser foot upward and downward, the presser foot lifting lever being rotatably connected to the support unit by the first shaft. The support unit is rotatable between a first position where the presser foot lifting lever is located below the arm of the sewing machine and a second position where the presser foot lifting lever is located behind the head of the sewing machine.

Abstract: A sewing machine comprising: vertical movement actuator that vertically moves the presser bar having a presser foot; a control unit, that controls the vertical movement actuator to selectively execute a first mode or a second mode; a mode switch unit capable of selectively switching between the first mode and the second mode; and the control unit, when switched to the first mode, controls the vertical movement actuator so as to retain the presser foot at a cloth pressing position irrespective of an operational status of a sewing process; and when switched to the second mode, controls the vertical movement actuator so as to retain the presser foot in a slightly lifted position while a sewing operation is ongoing, whereas when the sewing operation is stopped, the presser foot is moved and retained in the cloth pressing position.

Abstract: A sewing machine includes a housing portion, a bed, a needle plate, an image capture device, a moving device, a command acquisition device, and a moving control device. The housing portion houses at least one needle bar. The needle plate is provided on the bed and includes a needle hole. The image capture device is adapted to capture an image of the needle hole. The moving device moves the image capture device in relation to the housing portion. The command acquisition device acquires a command to move the image capture device in relation to the housing portion. The moving control device controls the moving device in accordance with the command that has been acquired by the command acquisition device to move the image capture device in relation to the housing portion.

Abstract: A sewing machine includes a bed, a needle plate, an image capture device, an auxiliary optical member, a switching device, a command acquisition device, and a control device. The needle plate is provided on the bed and includes a needle hole. The image capture device is adapted to capture an image facing downward from above the needle hole. The auxiliary optical member is adapted to transmit light to an image capture device side of the auxiliary optical member. The switching device switches the auxiliary optical member to one of being used and not being used. The command acquisition device acquires a command. In a case where the command has been acquired, the control device controls the switching device to switch the auxiliary optical member to one of being used and not being used in accordance with the command.

Abstract: An illumination device for a multineedle sewing machine includes an illuminating member which has a light source and located at a lateral side of a needle bar case and is disposed so as to open portions of needle bars and portions of needles, a light amount adjusting unit which adjusts an amount of light of the light source, and a control unit which controls the light amount adjusting unit with movement of the needle bar case by the needle bar case moving mechanism together with the illuminating member so that a predetermined illuminance is maintained at least in part of an illuminated area which is illuminated by the light source. The part of the illuminated area is located near the needle drop position.

Abstract: A multi-needle sewing machine including a needle-bar case transfer mechanism transferring a needle-bar case relative to a sewing machine body and a first wiring and a second wiring each connected to an electrical component provided at the needle-bar case and that is extended across the sewing machine body and the needle-bar case. The first and the second wiring are held such that the first wiring and the second wiring are separated in a direction of transfer of the needle-bar case and a first intermediate portion of the first wiring and a second intermediate portion of the second wiring are curved so as to either cross over or proximate one another to allow the first wiring and the second wiring to be moved relative to one another at the first intermediate portion and the second intermediate portion.