Abstract: In the large-diameter bobbin mode of the bobbin winding device, the switching lever is arranged at the switching position, and the interlocking lever is rotated to the blocking position blocking the lowering of the thread trimming holder at the raised position. Therefore, the small-diameter bobbin is arranged above the regular mounting position if it is mounted on the spool shaft. Thus, the engaging hook of the bobbin stopper does not engage with the upper end portion of the core portion of the small-diameter bobbin, and the engaging hook and the thread trimming holder do not sandwich the small-diameter bobbin vertically. Therefore, when the spool shaft is rotated by the spool motor in this state, the bobbin thread is not wound around the small-diameter bobbin since it idles with respect to the spool shaft.

Abstract: A sewing machine is provided with a function of adjusting a thread margin remaining on a cloth side to be sewn to a desired amount. A sewing machine includes a cutting member and a thread length adjustment mechanism. The cutting member cuts an upper thread and a lower thread between a hole of a needle plate and the cutting member. The thread length adjustment mechanism adjusts the length of the upper thread and the lower thread extending from the hole of the needle plate up to the cutting member.

Abstract: A bobbin winding device has a switching motor and a switching lever connected to the switching motor. The switching motor is driven by the control unit, and the switching lever is rotated, so that the intermediate position of the detection lever is changed to one side in the rotation direction of the detection lever. This allows changing the winding diameter of the bobbin thread wound on different bobbin diameters. Here, the bobbin winding device has a color sensor which detects the outer diameter of the bobbin mounted on the spool shaft. The control unit drives the switching motor to rotate the switching lever based on the detected outer diameter of the bobbin. Therefore, the user can wind the bobbin thread around the bobbins having different outer diameters without rotating the switching lever from the initial position based on the outer diameter of the bobbins to be mounted.

Abstract: Press-fitting work is evaluated by appropriately determining a load when sliding occurs. A load-drop determination unit determines whether or not a load value detected by a load detecting unit exceeds a load-drop determination value decided based on a moving average value and a dispersion average value stored in a storage unit. A data substitution unit substitutes the load value which is determined to exceed the load-drop determination value in the load-drop determination unit with a predetermined value.

Abstract: A sewing machine according to the present invention includes: an upper shaft that drives a needle and a balance; a lower shaft that drives a hook and a feed dog; an upper and lower shaft belt that synchronizes rotation of the upper shaft with rotation of the lower shaft; and an idler unit that pushes an idler into the upper and lower shaft belt to change a tension side belt length, in which the idler unit includes a transmission mechanism connected to the upper shaft or the lower shaft, and a rotating body mechanism provided with the idler and having a rotating body that rotates in synchronization with the upper shaft or the lower shaft by the transmission mechanism, and a pushing amount of the idler into the upper and lower shaft belt is changed according to rotation of the rotating body.

Abstract: The desired seams are formed while adding a hand-sewn taste to the sewing pattern without changing the tendency of the hand-sewn taste for the same pattern. A coordinate data storage unit for storing coordinate data which indicates a needle location of a pattern to be sewn, an addition value storage unit for storing an addition value which is added to each of the coordinate data, and an adjustment unit for adjusting the coordinate data or the addition value; and an added coordinate data creating unit for creating a new coordinate data where the pattern is deformed by adding the addition value adjusted by the adjustment unit to the coordinate data or by adding the addition value to the coordinate data adjusted by the adjustment unit or by adding the addition value adjusted by adjustment unit to the coordinate data adjusted by the adjustment unit are provided.

Abstract: In a needle plate, a needle plate hole is configured to include a hole-side cutting side that cuts a cutting target object together with a blade portion, and a relief side that allows a cut portion of the cutting target object to escape. Specifically, the needle plate hole has the hole-side cutting side that shears the cutting target object together with a blade-side cutting side of the blade portion, and the relief side that forms a gap between the blade portion to be inserted and the relief side. In this manner, in the former stage of cutting processing, the cutting target object can be cut by the hole-side cutting side and the blade-side cutting side.

Abstract: A pressing apparatus 1 includes a storage 27 that stores a plurality of actual data which are load data which was actually measured and which are configured of a first information and a second information, and a plurality of reference data which is a reference for the load data, an adjustor 23 that expands and contracts the first information of at least one of an actual data pattern which is based on the plurality of the actual data stored in the storage 27 and an reference data pattern based on the plurality of the reference data stored in the storage 27 to correspond with each other, and a determiner 24 that determines appropriateness of a load applied to the ram 9 in a pressing operation based on a similarity of the actual data pattern adjusted by the adjustor 23 and the reference data pattern adjusted by the adjustor 23.

Abstract: In a sewing machine, an elevating unit is configured to be integrally raised and lowered with a threading lever of a threading apparatus. Furthermore, an operating lever is coupled to a lever interlocking mechanism that interlocks with the rotational operation of the operating lever. Upon pressing threading lever downward from an initial position when operating lever is at an operating position, an elevating unit engages with lever interlocking mechanism. Operating force applied to threading lever is transmitted to operating lever via lever interlocking mechanism, thereby turning operating lever from operating position to non-operating position. Accordingly, even when a presser is at a raised position, by pressing threading lever downward, operating lever is turnable from operating position to non-operating position, thereby allowing presser to return to pressing position.

Abstract: In a sewing machine, a plurality of needle plate holes are formed in a needle plate. The needle plate holes are arranged at positions respectively corresponding to a plurality of blade-side rotation positions of a cutwork blade. In this manner, the needle plate hole is formed in a shape corresponding to a shape of a blade portion, and a direction of the needle plate hole can match a direction of the blade portion that is arranged above to face the needle plate hole. Specifically, a linear hole-side cutting surface corresponding to a blade-side cutting surface of the blade portion is formed in the needle plate hole, and the blade-side cutting surface and the hole-side cutting surface can be arranged to face each other in a direction orthogonal to both the surfaces in a plan view.

Abstract: In feed dog mounting/unmounting mechanism, lever is slidably provided to feed base in the front-rear direction, and is forced backward by a lever force-applying spring. Upon sliding lever rearward, fixing target portion of feed dog 22 is fixedly held by base-side fixing portion of feed base and lever-side fixing portion of lever arranged in the front-rear direction. Stopper is provided to feed base so as to be movable in the upper-lower direction, and holds lever. When feed dog is mounted, stopper is pressed downward by feed dog, which moves stopper so as to allow lever to slide. With this, lever is slid due to force applied by the lever force-applying spring, thereby allowing fixing target portion to be held, interposed between base-side fixing portion and lever-side fixing portion.

Abstract: Disclosed herein are an electric press and a method for calibrating the electric press, which can implement a rapid calibration operation. An electric press (10) includes a ram location information storage unit (63) and a load control unit (64). The ram location information storage unit (63) stores ram location information, corresponding to actual load values and representing locations to which a ram is moved, in advance. The load control unit (64) applies an actual load, corresponding to at least one location which belongs to the locations represented by the ram location information and to which the ram is moved, to a compression target by moving the ram to the location. Accordingly, the load value output by the detection unit is calibrated based on the actual load value applied to the compression target.

Abstract: A sewing machine includes: a pattern data acquisition unit that acquires pattern data in which information on an object corresponding to a unit from a sewing start point to a ravel preventing point or a thread trimming point and information related to a required bobbin thread amount required for sewing the object are associated with each other and registered; a bobbin thread remaining amount acquisition unit that acquires a bobbin thread remaining amount; a determination unit that determines whether or not the object is sewable, based on a difference between a required bobbin thread amount of the object according to the pattern data and the bobbin thread remaining amount; and a decision unit that, based on a determination result of the determination unit, decides whether or not the object is set as a sewing target.

Abstract: In a sewing machine, a switching mechanism is coupled to a slide arm of a transmission mechanism included in an upper feed mechanism. When the switching mechanism is operated, the slide arm is switched between a transmission state in which the driving force of a driving cam is transmitted to a feed link mechanism and a non-transmission state in which the driving force of the driving cam is not transmitted to the link mechanism 61. This allows the switching mechanism to switch the slide arm 60A to the non-transmission state. This allows the operation of the feed link mechanism to be suspended, and allows the upper-lower movement of an upper feed dog to be suspended. Accordingly, this contributes to a reduction in vibration and noise in the sewing machine.

Abstract: A terminal has: a sewing information file preparation unit for preparing a sewing information file which includes a sewing information related to a particular sewing data selected from a plurality of sewing data stored in a predetermined folder of a storage unit; and a storage processing unit for storing the prepared sewing information file in another folder of the storage unit. A sewing machine includes: a reading folder determination unit for determining a folder to which the sewing information file to be sewn is read from the storage unit based on the current operation mode; and a sewing data acquisition unit for referring to the sewing information included in the sewing information file from the determined folder and acquiring the particular sewing data.

Abstract: An embroidery apparatus includes a main unit to be detachably mounted on a bed section of a sewing machine, a first translation mechanism that moves an embroidery frame holder with an embroidery frame mounted thereon in a first direction, a second translation mechanism that moves the first translation mechanism along an upper surface of the main unit in a second direction that orthogonally intersects the first direction, and an elevator mechanism that is supported by the second translation mechanism at opposite sides of the main unit and that raises and lowers the first translation mechanism. The embroidery apparatus is applicable to a sewing machine switchable between embroidery stitching and standard stitching. During standard stitching, the upper surface of the first translation mechanism is flush with the upper surface of the main unit, which enables both upper surfaces to be used as an auxiliary table.

Abstract: A needle plate attaching/detaching mechanism includes: a needle plate fixing portion rotatably provided below a needle plate mounted on a sewing machine main body, and movable between a fixed position fixing the needle plate to the sewing machine main body and a non-fixed position where the fixing is released; a driving gear jointly rotatably coupled to the needle plate fixing portion; a transmission mechanism switchable between a transmission state transmitting driving force from a motor to the driving gear and a disconnection state disconnecting the transmission; and an operating member including a manual gear transmitting manual operating force to the driving gear. When the operating member is non-operating, the transmission mechanism is set to the transmission state, and the manual gear is disconnected from the driving gear. In the operating state, the operating member switches the transmission mechanism from transmission to disconnection, and the manual and driving gears are coupled.

Abstract: A sewing machine includes a feed amount setting part and a feed amount adjustment part. In the feed amount setting part, a forward feed amount for one stitch of forward stitching is set. In the feed amount adjustment part, the forward feed amount which is set by the feed amount setting part is compared with the maximum backward feed amount for one stitch of reverse stitching which is determined by a feed mechanism. Then, in the feed amount adjustment part, when the forward feed amount is larger than the maximum backward feed amount, the total amount of backward feed amounts for plural stitches of backward stitching is adjusted so as to coincide with the total amount of the forward feed amounts for one stitch or more of forward stitching.

Abstract: An operation state ascertaining unit of a sewing machine ascertains an operation state of a sewing machine main body. A content information selection unit selects particular content information that corresponds to the operation state ascertained by the operation state ascertaining unit from among multiple content information stored in an operation-associated content information storage unit that stores multiple content information corresponding to the operation state. An instruction information appending unit appends additional information with respect to instruction content for the main body to the content information selected by the content information selection unit. A coding unit codes the selected content information to which the additional information has been appended by the instruction information appending unit. A display unit displays the content information coded by the coding unit.

Abstract: A sewing machine includes: a presser spring depressing a presser bar; a presser main body fixed thereto, including a presser; a lower feed dog protruding further upward than a needle plate, to feed a sewing target rearward; an upper feed mechanism above the lower feed dog, that includes an upper feed dog behind a needle location and feeds the sewing target rearward via the upper and lower feed dogs; and a spring presser release mechanism relatively movably mounted on the presser bar, including a transmission member transmitting presser spring force to the presser bar, and operating when the lower contacts the upper feed dog, lifting the transmission member relative to the presser bar, to release the force applied thereto. The movement of the transmission member with respect to the presser bar during spring presser release mechanism operation matches a movement of the lower feed dog protruding from the needle plate.