Abstract: An overlock sewing machine includes: a looper cover detection member movable from non-switching to switching positions with looper cover open to closed state transition, with switching member operation switching the threading mechanism state to sewing-enabled after looper cover detection member movement to switching position; a side cover detection member movable from non-detection to detection positions with side cover open to closed state transition; and a lever coupled to the looper cover detection member and side cover detection member, switchable between states of pressing and not pressing the operating protrusion, following looper cover detection member and side cover detection member operating states. The lever is set to the pressing state upon movement of the looper cover detection member to switching position and of the side cover detection member to detection position.

Abstract: An embroidery data generator generates embroidery data of a whole pattern of joined pattern-configuration-elements. The embroidery data generator includes a pattern-configuration-element generation section configured to generate the pattern-configuration-elements from array patterns configured from unit patterns and having tapered profiles imparted to end portions of the array patterns, and to place the pattern-configuration-elements so that adjacent of the pattern-configuration-elements are joined to each other at tapered portions having the tapered profile.

Abstract: A coordinate data generator includes a coordinate data storage to store coordinate data, and a post-addition coordinate data generation section to respectively add independent values to the X coordinate value or the Y coordinate value of the coordinate data for each item of the coordinate data stored in the coordinate data storage, so as to generate new coordinate data in which a pattern has been distorted.

Abstract: With an overlock sewing machine set to an interlock state and the upper blade in an interlock position, upon turning the operating shaft toward one side around its axis, an interlock switching mechanism displaces the other end portion of a rod and sets an interlock release state. A pressing portion presses a first switching portion to swing a swing member toward the forward swing side, which displaces the upper blade to retraction position. With the state set to interlock release with the upper blade in retraction position, upon turning the operating shaft toward one side around its axis, the pressing portion presses a second switching portion to swing the swing member toward the reverse swing side, which displaces the upper blade to interlock position. The interlock mechanism displaces the other end portion of the rod to set the state to interlock.

Abstract: An overlock sewing machine includes an operating shaft that is slidable between first and second positions, and configured such that interlock switching and position switching mechanisms are operated when it is turned. The interlock switching mechanism includes a rotor that is rotatable together with the operating shaft as a single unit, an interlock switching member, and a first engagement target portion formed in the rotor. In the interlock state, setting the operating shaft to the first position engages an engagement portion of the interlock switching member with the first engagement target portion, which restricts operating shaft rotation. Sliding the operating shaft to the second position releases the engagement state between the engagement and first engagement target portions, enabling rotation of the operating shaft.

Abstract: A needle bar 4 is supported by a needle bar supporter in a manner freely movable up and down relative to a frame. A crank 2 is fixed to an upper shaft 1, rotates with the upper shaft 1, and an output end thereof moves circularly. A crank rod 3 is connected to the crank 2 in a freely rotatable manner. A connection rod 8 is connected to an intermediate portion of the crank rod 3 in a freely rotatable manner, and is connected to the needle bar 4 in a freely rotatable manner. A length of the needle bar 4 and a length from a connecting position of the connection rod 8 and the crank rod 3 to a slider 7 differ. When the crank 2 circularly moves, the connecting position of the connection rod 8 and the crank rod 3 draws a trajectory of an ellipse.

Abstract: A log collecting device enabling a grasp of an actuation status based on event logs without a restriction regarding a memory, and an industrial robot and an electric-powered press including the same are provided. A log collecting device 1 is provided on, for example, an industrial robot and an electric-powered press, stores an event log 11 indicating details of an event occurred at an apparatus in a volatile memory 3, creates the collection data 12 that is a collection of the event logs 11, stores this collection data 12 in the volatile memory 3, and deletes the event logs 11 collected as the collection data 12 from the volatile memory 3.

Abstract: A sewing-machine operating program is installed in a terminal device of a user. A specifying information acquiring step causes a short-distance information acquiring unit to acquire specifying information recorded on a sewing-machine main unit. In the distance measuring step, an apart distance is calculated from a detection result of a movement detecting sensor with a position where the specifying information is acquired being as an initial position. In the distance comparing step, for a remote operation to the sewing-machine main unit, the apart distance and a prescribed distance are compared. In the function restricting step, when the apart distance is within the prescribed distance, an operation command is transmitted to the sewing-machine main unit via a wireless communication device, and when the apart distance exceeds the prescribed distance, the operation command is not transmitted to the sewing-machine main unit.

Abstract: In order to prevent a replacement of the needle plate in the situation not suitable for replacing the needle plate, a needle plate detachable mechanism has a needle plate fixing unit for fixing a needle plate on a sewing machine body; a releasing unit for releasing a fixed state of the needle plate; and a fixing-release limiting unit for limiting a release of the fixed state of the needle plate when the needle is positioned below an upper surface of the needle plate or when the sewing machine motor is driven.

Abstract: An embroidery sewing machine calculates the number of designs to be used for sewing for a length that is closest to a desired sewing length, based on the desired sewing length and information regarding the designs. The embroidery sewing machine calculates the sewing length based on the calculated number of designs and the information regarding the designs. Furthermore, the embroidery sewing machine adjusts the length of each design such that the calculated sewing length matches the desired sewing length, and converts the adjusted data of the designs into embroidery data. This enables sewing such that the sewing start and end points match each other or junction matching is secured, even in a case of sewing in the form of various kinds of combinations of curves and lines or the like. In addition, this provides an embroidery sewing machine that is capable of executing sewing with an improved appearance.

Abstract: The present invention provides an embroidery frame that includes an inner frame formed like a hoop and an outer frame that has a separation section at which the outer frame is separated so as to form a first end portion and a second end portion that oppose each other. The outer frame is configured to nip an embroidery object, in collaboration with the inner frame, from outside the inner frame. The embroidery frame also includes an opening-closing mechanism configured to adjust a clearance of the separation section. In the embroidery frame, the opening-closing mechanism has a connection shaft that connects the first end portion and the second end portion to each other and also has a manipulation member that is rotatably mounted on the connection shaft with a center of rotation being positioned at the first end portion.

Abstract: A sewing machine that sews an embroidery pattern on a sewing object includes an embroidery frame horizontally moving along a direction which a frame surface extends, a needle bar supporting a needle for inserting a thread, and reciprocally moving toward an internal space of the embroidery frame, a memory unit storing image data of the embroidery frame, and embroidery data of the embroidery pattern, and a display unit displaying an image of the embroidery frame, an image of the embroidery pattern within the image of the embroidery frame, and a feature point with a positional relation between the embroidery pattern, and the embroidery frame when actually sewn in accordance with the embroidery data.

Abstract: With a overlock sewing machine, when a switching mechanism is switched to a threading-enabled state, and a looper cover is closed, the looper cover is slid toward one side in the hinge shaft axial direction so as to operate a detection lever. In the non-operating state, the detection lever is set to an initial position where it does not press an operation protrusion of a switch. When a side cover is closed, and the detection lever is operated, the operation lever is set to an operation-enabled position where it presses the operation protrusion. When the operation lever is operated, and the side cover is opened, the detection lever is set by passing through the operation-enabled to the operation-disabled position where it does not press the operation protrusion.

Abstract: A presser foot vertical drive device includes an upper shaft configured to vertically drive a needle, a presser foot drive cam fixed to the upper shaft, a presser foot urged downward over a needle plate, a cam follower configured to be vertically driven in contact with the presser foot drive cam, and a link configured to transmit the vertical drive of the cam follower to the presser foot. The presser foot drive cam includes a plurality of drive cams having cam surfaces for different presser foot vertical drive patterns. The cam follower includes a switching unit for selection of one drive cam from the presser foot drive cam.

Abstract: In order to improve detachability of a needle plate, a needle plate detachable mechanism has a needle plate which is provided on a bed part of the sewing machine and made of a magnetic body; a magnet which is provided below the needle plate for fixing the needle plate by magnetic force; and a magnetic force changing mechanism which is connected with the magnet for changing the magnetic force acting on the needle plate by relatively moving the magnet with respect to the needle plate.

Abstract: A thread color comparison unit compares and judges whether or not a comparison target is the same as a comparison reference with a given thread color of a given design stored in a thread color storage unit as the comparison target and with a given thread color of another given design that differs from the given design as the comparison reference. A thread color grouping unit performs grouping for the comparison target and the comparison reference included in different designs when the comparison target and the comparison reference are the same color. When the thread color comparison unit has judged that the comparison target is the same as the comparison reference, the thread color storage unit stores information such that the comparison target is to be sewn together with the comparison reference that has been judged to be the same, and the sewing data for the comparison target is removed.

Abstract: In order to prevent a replacement of the needle plate in the situation not suitable for replacing the needle plate, a needle plate detachable mechanism has a needle plate fixing unit capable of being switched between a fixed state where a needle plate is fixed to a sewing machine body and an unfixed state where the fixed state is released; and a switching mechanism which is connected with the needle plate fixing unit for switching the needle plate fixing unit between the fixed state and the unfixed state, wherein the needle plate fixing unit is prevented from being switched when the needle is positioned below an upper surface of the needle plate or when the sewing machine motor is driven.

Abstract: Provided is a sewing machine that enables a user to grasp the position of an interested point that is present inside and outside a stitchwork pattern without relying upon the user's imagination. This sewing machine includes an operation screen that displays, in a screen region, a frame image and a stitchwork image, and receives a user input of an interested point within a stitchwork frame displayed in the screen region. Moreover, the stitchwork frame is horizontally moved until a needle points out a point within the stitchwork frame and corresponding to the interested point input using the operation screen.

Abstract: The present invention provides a sewing machine that enables to switch frequently used functions during the sewing work with good usability, validate only the indicator related to the work among a plurality of indicators, and enables GUI operations by a screen display unit. Thus, high operability can be achieved. The sewing machine includes: a setting unit for setting operation buttons related to desired sewing work; an operation display unit for displaying the operation buttons set by the setting unit, the operation display being arranged at an arm part; and a screen display unit arranged at a position different from the operation display unit.