| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 112235000 | Presser devices | 24 |
| 20090020056 | CLOTH PRESSER DEVICE OF SEWING MACHINE - 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. | 01-22-2009 |
| 20090255453 | FEED-OFF-ARM TYPE SEWING MACHINE FOR FLAT SEAMING - A needle bar supported in a head unit is connected with a needle bar lever extending from the inside of a sewing machine arm and the needle bar is moved up and down by swing of the needle bar lever about a supporting shaft generated by transmission from a sewing machine main shaft. The sewing machine arm and the head unit are fluid-tightly shielded by a shield plate, and a first sealing part is provided in the shield plate. The first sealing part supports the needle bar lever by fitting a portion of the needle bar lever into seal plates held between a presser plate and a back face of a seal support having a curved shape of a circular arc taken along a swinging locus of the needle bar lever. The inside of the sewing machine arm is oil-lubricated, and the inside of the head unit is grease-lubricated. | 10-15-2009 |
| 20090277366 | Pressure Adjustment Structure for a Presser Foot of a Sewing Machine - A pressure adjustment structure for a presser foot of a sewing machine, wherein one end of a horizontal arm of the sewing machine is disposed with a presser bar of the presser foot, and an elastic member is mounted on the presser bar. The end of the horizontal arm is provided with a main supporting frame, so that the pressing member slides on the main supporting frame with a pressing body and a guiding member, and one end of the pressing member presses an elastic member. In addition, the pressing body extends towards and is driven by an adjustment element of the main supporting frame, so that the pressing member driven by the pressing body slides on the main supporting frame to press the elastic member so as to provide different pressure. A second supporting frame is disposed on the main supporting frame to connect with the horizontal arm. | 11-12-2009 |
| 20100071604 | PRESSER FOOT AND SEWING MACHINE - In a presser foot and a sewing machine according to the present invention, a guide hole is formed in a presser leg to which a fixed knife is attached, so as to passing through the presser leg up and down, and a knife holder is fitted and held to the guide hole. The fixed knife is inserted to a retention groove provided in a peripheral surface of the knife holder through a window hole provided in the presser leg, and is fixed by fastening a stop screw. A position of the fixed knife is adjusted in a vertical direction by moving the knife holder in the vertical direction along the guide hole and fastening the stop screw at an appropriate position, thereby changing a cut position of ends of fabrics and changing an overlapped width of the fabrics at a time of seaming. | 03-25-2010 |
| 20110203505 | SEWING MACHINE - A sewing machine is disclosed that includes a needle bar allowing attachment of a sewing needle including a needle eye to a lower end of thereof; a needle-bar lifting/lowering mechanism that moves the needle bar up and down; a presser foot; a presser foot lifting/lowering mechanism that moves the presser foot up and down; a hook that is provided with a beak for seizing a needle thread loop formed at the needle eye and that rotates in coordination with the up and down movement of the needle bar; and a controller that controls the presser foot lifting/lowering mechanism so as to resize a needle thread loop by lifting the presser foot to a predetermined height in coordination with a swing position of the needle bar and a predetermined height of the needle bar where the beak meets the needle thread loop. | 08-25-2011 |
| 20120017815 | PRESSER DEVICE FOR USE WITH SEWING MACHINE AND SEWING MACHINE - 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. | 01-26-2012 |
| 20120210923 | ADJUSTING STRUCTURE FOR A SWING ARM AND A SWINGING CENTER THAT CONTROL TRAVEL OF A SEWING MACHINE - An adjusting structure for a swing arm and a swinging center that control travel of a sewing machine comprises an adjusting apparatus and corresponding structures cooperating with the adjusting apparatus. The adjusting apparatus is provided on the pivotal portion with a sliding groove and a sliding block that can horizontally slide with respect to each other. Between the sliding groove and the sliding block are further provided an adjusting bolt and an elastic element. By rotating the adjusting bolt, the relative position between the swinging center around which the whole swing arm pivots and the whole structure of the swing arm can be changed in the horizontal direction accurately and conveniently, thus assuredly adjusting the start point of the travel of the presser foot, achieving the objective of accursedly adjusting position of the travel sensing apparatus. | 08-23-2012 |
| 20150107504 | CLOTH PRESSER FOR HANDICRAFT - A cloth presser includes a grip portion, a first press end and a second press end. The grip portion is elongated, having a straight longitudinal axis. The first press end and the second press end are spaced apart from each other, with the grip portion intervening between the first press end and the second press end. The first press end is configured to make point contact with an object such as a piece of cloth, and the second press end is configured to make surface contact with the object. | 04-23-2015 |
| 20180023232 | SEWING MACHINE | 01-25-2018 |
| 112236000 | Embroidering and darning | 2 |
| 20110290168 | SEWING MACHINE - A sewing machine includes a main body, a presser bar attached to the main body so as to move along a vertical direction of the sewing machine and detachably holding a presser foot, a needle thread tension adjustment mechanism selectively brought into inactive and active modes, the needle thread tension adjustment mechanism releasing a needle thread tension in the inactive mode and maintaining the needle thread tension in the active mode, and a presser bar lifting lever manually rotated along the vertical direction by a user of the sewing machine and adjusting a position of the presser bar in the vertical direction in accordance with the manual rotation, the presser bar lifting lever including a height adjustment cam portion adjusting the position of the presser bar in the vertical direction and a thread tension adjustment cam portion allowing the needle thread tension adjustment mechanism to adjust the needle thread tension. | 12-01-2011 |
| 20140216316 | EMBROIDERY CLOTH PRESSER - An object of the present invention is to provide an embroidery cloth presser which prevents a needle thread from being sandwiched between the embroidery cloth presser and a cloth to allow an embroidery frame to move smoothly and which also prevents inappropriate draw-in of the needle thread, that is, prevents a cross-over thread of the needle thread resulting from long-distance movement of the embroidery frame from remaining on an embroidery surface. An embroidery cloth presser is installed on a presser bar of a sewing machine to press a cloth to be embroidered and which includes a projection provided on a bottom surface of the cloth presser which contacts the cloth around a needle and forming, between the cloth presser and the cloth, a gap through which a needle thread passes. | 08-07-2014 |
| 112237000 | Lifting | 10 |
| 20080236465 | Presser for sewing machine and sewing machine - A presser device for a sewing machine includes a first lever having a cloth pressing portion which is swingably mounted on a presser foot, the cloth pressing portion being swung so as to be switchable between a cloth pressing position and a raised position, a second lever having a support portion where the second lever is pivotally supported on an upper part of the first lever and an abutment which is normally in abutment with a needlebar assembly moved up and down, a first biasing member which biases the first lever so that the first lever is caused to pivot in such a direction that the cloth pressing portion becomes a cloth pressing position, and a second biasing member which biases the second lever so that the second lever is caused to pivot in such a direction that the abutment of the second lever is abutted against the needlebar assembly. | 10-02-2008 |
| 20090056607 | CLOTH PRESSING DEVICE OF SEWING MACHINE - A cloth pressing device of a sewing machine is provided. The cloth pressing device includes a presser bar, a presser foot rotatably coupled to a lower end portion of the presser bar, an elastic member having a base end portion which is supported by the presser bar and a tip end portion which is engageable with a tip side portion of the presser foot to downwardly bias the tip side portion of the presser foot, and an adjusting mechanism operable to move the tip end portion of the elastic member between a position at which the tip end portion of the elastic member engages with the tip side portion of the presser foot and another position at which the tip end portion of the elastic member does not engage with the tip side portion of the presser foot. | 03-05-2009 |
| 20090114133 | Presser foot device for sewing machine and sewing machine provided therewith - Disclosure relates to a presser foot device for a sewing machine which includes a presser bar mounted on a head mounted at a distal end of an arm and having a lower end with a presser foot, the presser foot device lifting the presser foot upward and downward together with the presser bar. The presser foot device includes a presser foot lifting lever mounted for lifting the presser foot upward and downward and a support unit which supports the presser foot lifting lever so that the presser foot lifting lever is switchable between a first position that is located below the arm of the sewing machine and a second position that is located behind the head of the sewing machine. | 05-07-2009 |
| 20100000453 | Knee lever for sewing machine - 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. | 01-07-2010 |
| 20110146551 | MECHANICALLY OPERATED PRESSER FOOT LIFT ARRANGEMENT AND A SEWING MACHINE COMPRISING THE ARRANGEMENT - The invention relates to a mechanically operated presser foot lift arrangement ( | 06-23-2011 |
| 20130112128 | CONCENTRIC HOPPING FOOT FOR SEWING MACHINE - A sewing machine hopping foot assembly having a hopping foot which has a hopping foot top with a hopping foot needle bar opening, a hopping foot base with a hopping foot base opening, and one or more hopping foot arms connecting the hopping foot top to the hopping foot base, having a hopping foot bushing with an interior annular space, the hopping foot bushing being connected to the hopping foot, the annular space providing for a normal up and down sewing movement of the needle bar in the annular space. | 05-09-2013 |
| 20140373765 | KNEE-CONTROLLED MOTOR CONTROL DEVICE FOR A MOTOR-DRIVEN PRESSER MECHANISM OF A SEWING MACHINE - A motor control device is used to control an electric motor that drives a presser mechanism of a sewing machine and includes a knee lever mechanism and a control module. The knee lever mechanism includes a switch component, an actuator rotatable to actuate the switch component at a predetermined angular position, and a rotatable knee lever operable by knee contact to rotate and to drive rotation of the actuator. When the control module determines that the switch component is actuated, the control module controls the electric motor to move the presser mechanism to dispose a presser foot of the presser mechanism at a predetermined height relative to a bed of the sewing machine. | 12-25-2014 |
| 112238000 | With tension release | 2 |
| 20080257242 | Apparatus for Lifting Presser Foot of Embroidery Machine - An apparatus for lifting the presser foot of an embroidery machine includes an arm having an upper shaft providing a driving force, a presser foot driving cam mounted on the upper shaft, a transmission member coupled to the presser foot driving cam and making an oscillating motion, a presser foot driving lever connected to the transmission member and pivoting around a predetermined pivoting point thereof in a vertical direction, a presser foot driving block reciprocating along a needle bar guide shaft according to an amount that the presser foot driving lever is pivoted and moving the presser foot in a vertical direction, and a presser foot height adjustor, displacing the pivoting point of the presser foot driving lever to adjust a height of the presser foot. | 10-23-2008 |
| 20140238286 | SEWING MACHINE - A sewing machine includes: a needle rod being reciprocated vertically; tension discs sandwiching an upper thread; a feed mechanism transporting a sewing object in a vertical direction; a reciprocating mechanism reciprocating the needle rod laterally; an upper thread tension adjusting mechanism adjusting the tension discs; a feed amount adjusting mechanism adjusting a feed amount of the feed mechanism; a stitch width adjusting mechanism adjusting a stitch width of the reciprocating mechanism; and a control apparatus controlling the upper thread tension adjusting mechanism, the feed amount adjusting mechanism, and/or the stitch width adjusting mechanism. A common adjusting mechanism, being one of the feed amount adjusting mechanism and the stitch width adjusting mechanism, includes: a motor; an adjusting mechanism body being a tooth-missing gear and/or a cam; and a variation amount adjusting unit. The upper thread tension adjusting mechanism includes: a thread loosening portion; and an upper thread tension adjusting unit. | 08-28-2014 |
| 112239000 | Automatic | 1 |
| 20080282953 | Clutch Structure for Presser Foot of Embroidery Sewing Machine - A clutch structure for a presser foot in an embroidery sewing machine is provided. The clutch structure includes a guide member, to which the presser foot drive link is rotatably connected, and through which the needle bar guide shaft passes, a spring connecting member mounted on the outer circumference of the needle bar guide shaft and inside the guide member, a resilient member mounted on the outer periphery of the spring connecting member, and a pivot member mounted inside the guide member so as to be pivotable around the needle bar guide shaft within a certain angular range by the height adjusting mechanism and the resilient member. Upon a head-interval adjusting operation, the unnecessary driving of the presser foot is prevented, so that the occurrence of vibrations and noise as well as the unnecessary wear of a needle bar, a presser foot support, and a presser foot holder can be prevented. | 11-20-2008 |
| 112240000 | Detachable connections | 3 |
| 20100282149 | Sewing Machine - A manually operated sewing machine device having a square needle feed and jump foot system, capable of using thread sizes 69 through 346, inclusive, and standard 328 System needles ranging in size from 140 (#22) to 230 (#26). The machine will sew material from light fabric to heavy materials such as approximately ¾ inch thick leather, canvas, and nylon webbing, featuring a hand crank or hand wheel capable of being connected to and driven by a motor. The synchronized motion of the needle, jump foot, and a shuttle hook is accomplished by use of three (3) fixed cams and a rack and pinion drive for the shuttle hook. | 11-11-2010 |
| 20120097085 | SEWING MACHINE PRESSER ATTACHING MECHANISM AND SEWING MACHINE PROVIDED THEREWITH - A presser attaching mechanism for a sewing machine is disclosed which detachably attaches to a presser bar a presser foot pressing a workpiece cloth or a presser holder supporting a presser foot. The presser attaching mechanism includes a locking mechanism located on a lower end of the presser bar so as to be switchable between a locking position where the presser foot or the presser holder is fixed to the presser bar and a unlocking position where the presser foot or the presser holder is released from the fixed state to the presser bar. | 04-26-2012 |
| 20160194797 | SEWING MACHINE | 07-07-2016 |
