Cutters Patents (Class 112/129)
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Patent number: 12208236Abstract: An injection device configured for attachment to the skin of a patient includes a housing and a skin adhesive layer attached to an external surface of the housing for attaching the injection device to the skin of a patient. A release liner covering the skin adhesive layer prevents the injection device from attaching to the skin. A film with one end connected to a surface inside of the housing forms a removable sterile barrier and the other end connected to an external surface of the release liner without contacting the skin adhesive layer. The housing, skin adhesive layer and release liner each include a notch defining a passage for the film so that the second end of the film can extend from the interior to the exterior of the housing.Type: GrantFiled: September 10, 2020Date of Patent: January 28, 2025Assignee: Ypsomed AGInventors: Stefan Burren, Mario Bernhard, Susanne Schenker, Andres Mellenberger, Christian Schrul, Markus Tschirren
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Patent number: 9556546Abstract: A sewing machine includes a sewing machine motor configured to generate drive power to drive a needle bar up-and-down motion mechanism and a cutting unit. The cutting unit includes a cutting needle having a distal end with a blade, and a cutting needle up-and-down motion mechanism having a first motor separate from a sewing machine motor and configured to generate drive power to move the cutting needle independently of the needle bar up-and-down motion mechanism. A cut is formed by the blade as a result of up-and-down motion of the cutting needle while the cutting needle is held in a manner such that an extending direction of the cutting needle corresponds with an extending direction of the needle bar. The cutting unit further includes a cutting needle rotating mechanism configured to rotate the cutting needle about a central axis line of the cutting needle directed to the extending direction.Type: GrantFiled: January 23, 2015Date of Patent: January 31, 2017Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuhiko Kawaguchi, Nobuhiko Funato, Toshiyuki Mamiya, Takahira Osamura
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Patent number: 8939096Abstract: An apparatus includes a processor and a memory. The memory is configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes including acquiring pattern data, specifying an outline of the embroidery pattern based on the pattern data, creating hole data for causing the sewing machine to form a plurality of holes including one or more first holes and one or more second holes, creating first stitch data for causing the sewing machine to sew one or more stitches for the one or more first holes, and creating embroidery data for causing the sewing machine to form one or more first holes, and sew the one or more stitches for the one or more first holes, and causing the sewing machine to form the one or more second holes, before causing the sewing machine to sew an outline pattern.Type: GrantFiled: November 13, 2013Date of Patent: January 27, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Yoko Yamanashi
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Publication number: 20140360419Abstract: A sewing machine of an “overlook” “cut-and-sew” type for sewing together at least two flaps (3a, 3b) of textile that are overlapping and belonging to one or more textile articles, comprising at least a needle plate (2) suitable for supporting at least two overlapping flaps (3a, 3b) of textile of one or more textile articles which are sliding for forming sewing stitches (10a, 10b, 10c), the needle plate (2) being provided with through-openings defining respective seatings (4) for passage of sewing needles (5) and at least a lateral appendage (6) defining a sliding line (7) for the sewing stitches (10a, 10b, 10c); a lower crochet hook (14); an upper crochet hook (15); and at least a sewing needle bearing device (11) with at least three sewing needles (5) mounted on the device (11), reciprocally flanked, aligned to one another and supplied with respective sewing threads (10), and being suitable for passing through the seatings (4) of the needle plate (2) for sewing the over-lapping flaps (3a, 3b) of textile, theType: ApplicationFiled: November 21, 2012Publication date: December 11, 2014Inventor: Tiberio Lonati
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Patent number: 8844453Abstract: A guide is mounted to a rotary member which is freely rotatable about the axis of a needle bar, and guides a sewing material to a needle drop position of the sewing needle. A cutter device is mounted to a side of the rotary member opposed to the guide in such a manner that the cutter device is rotatable together with the rotary member for cutting the sewing material, having been paid out from the guide, at a predetermined cutting position. A retention mechanism is incorporated in the cutter device for retaining an end portion of the sewing material, at a position closer to the guide than the predetermined cutting position and in interlocked relation to cutting, by the cutter device, of the sewing material. Thus, upon restart of sewing of the sewing material, the retention mechanism retains an end portion of the sewing material.Type: GrantFiled: April 19, 2011Date of Patent: September 30, 2014Assignee: Tokai Kogyo Mishin Kabushiki KaishaInventor: Tetsurou Kondou
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Publication number: 20140261122Abstract: A cutting device for a sewing machine includes an upper-blade positioning device and a lower-blade positioning device. The upper-blade positioning device includes an upper blade upper blade fixed at a head portion of the upper-blade holder, and a spring and a restricting member sleeved on a body portion of the upper-blade holder. A restricting pin is engaged between an upper-blade drive member and the restricting member. A guide member includes a guide hole for insertion of a rod portion of the upper-blade drive member and is fixed to the base. The upper-blade drive member is inserted through a guide member of the base and moved by a connecting rod. The lower-blade positioning device includes a lower-blade holder, an adjustment member. A lower-blade shaft has one end fixed to the base and another end extended out of the base, rotating the adjustment member can adjust the position of the lower-blade holder.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventor: Hsien-Chang TSENG
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Publication number: 20110253021Abstract: A guide is mounted to a rotary member which is freely rotatable about the axis of a needle bar, and guides a sewing material to a needle drop position of the sewing needle. A cutter device is mounted to a side of the rotary member opposed to the guide in such a manner that the cutter device is rotatable together with the rotary member for cutting the sewing material, having been paid out from the guide, at a predetermined cutting position. A retention mechanism is incorporated in the cutter device for retaining an end portion of the sewing material, at a position closer to the guide than the predetermined cutting position and in interlocked relation to cutting, by the cutter device, of the sewing material. Thus, upon restart of sewing of the sewing material, the retention mechanism retains an end portion of the sewing material.Type: ApplicationFiled: April 19, 2011Publication date: October 20, 2011Applicant: TOKAI KOGYO MISHIN KABUSHIKI KAISHAInventor: Tetsurou KONDOU
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Publication number: 20110247129Abstract: The present disclosure refers to an elasticized structure and a method for making such an elasticized structure. The elasticized structure, includes a first piece and at least one second piece. The first piece is superimposed and fixed onto the second piece in at least a first fixing zone and at least a second fixing zone. The second piece is at least partially made of an elastic material and has an internal zone comprised between the first fixing zone and the second fixing zone. The elasticized structure is able to assume a tensioned position and a rest position. In the rest position, the first piece has a hump comprised between the first fixing zone and the second fixing zone and flat parts alongside said first fixing zone and said second fixing zone, respectively.Type: ApplicationFiled: April 5, 2011Publication date: October 13, 2011Applicant: Dainese S.p.A.Inventor: Luigi RONCO
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Publication number: 20110073028Abstract: A sewing or looping head, particularly for the automated closing of tubular knitted articles at one of their axial ends comprising a pair of sewing elements, which can move along corresponding actuation paths and cooperate with each other in forming a sewing chain stitch, and a cutting element, which can be actuated to cut the sewing chain stitch; in the sewing or looping head, the cutting element can engage the sewing chain stitch proximate to the crossing point of the paths of the pair of sewing elements or the point where the sewing chain stitch is formed, so as to minimize the length of the sewing chain stitch that exceeds the length needed to sew or loop the article and so as to reduce the time required to perform the sewing or looping operation.Type: ApplicationFiled: March 17, 2009Publication date: March 31, 2011Applicant: LONATI S.p.A.Inventors: Ettore Lonati, Tiberio Lonati, Fausto Lonati
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Patent number: 7841057Abstract: A panel for a mattress including first and second fabric layers joined together along their edges and a padding material between said fabrics. The padding material includes at least a layer of resilient foam provided with through-holes. The foam layer is quilted between the first and second fabric layers. A method of manufacturing the panel includes forming a resilient foam body provided with recesses, horizontally cutting a plurality of single layers in the body in the recesses portion to result in at least one layer with through-holes, sandwiching at least one of the single layers provided with through-holes in each panel between the first and second fabric layers.Type: GrantFiled: March 31, 2008Date of Patent: November 30, 2010Assignee: SAPSA Bedding SRLInventors: Luciano Abrigo, Renzo Villa, Bruno Macció
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Publication number: 20090235854Abstract: The invention relates to an apparatus on an embroidering/stitching machine or sewing machine for applying at least one additional band-like material which can be fed to a needle by means of a feeding device, wherein a cutting device is arranged on the feeding device (4), wherein the feeding device (4) can be rotated together with the cutting device around the axis of the needle (6) by means of a drive and the cutting device is driven or can be driven by means of the drive of the presser (1).Type: ApplicationFiled: March 15, 2007Publication date: September 24, 2009Applicant: ZSK Stickmaschinen GmbHInventors: Hans-Jürgen Heinrich, Rene Spandler, Thomas Wolters, Bjorn Martin, Walter Biegelbauer
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Patent number: 7520230Abstract: A seaming assembly for placing seams in a continuously moving web of material. The seaming assembly includes a first support that is movable in a machine direction and a second support which is secured to the first support. The second support is movable relative to the first support in a cross direction. A seaming mechanism is mounted on the second support to place seams in the web that are at least partially in the cross direction. The first support may be movable in the machine direction at a speed that is substantially the same as the web such that the seaming mechanism places seams in the web that are substantially in the cross direction.Type: GrantFiled: March 16, 2005Date of Patent: April 21, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Brendon Frank Ribble, Robert Clarke Hochholzer, Joseph Robert Riegert
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Patent number: 6725790Abstract: A cloth cutting knife driving device is capable of being released, through an interlocking connection between an upper knife rocking arm and a sewing machine main shaft. The device includes a drive shaft, which is able to swing rotatably, by interlocking with a main shaft, a rocking arm rotatably supported on the drive shaft at one end providing a rocking motion, and a cloth cutting knife supported at the one end of the rocking arm that is rigidly held in a cloth cutting position or an inactive position, which is vertically displaced through the motion of the arm. The device has a coupled and released state between the drive shaft and rocking arm, which are brought about by an engaging part on the drive shaft and a movable member, movable relative to the rocking arm in a direction perpendicular to an axis of the drive shaft.Type: GrantFiled: May 20, 2002Date of Patent: April 27, 2004Assignee: Juki CorporationInventor: Kazuya Sadasue
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Patent number: 6523488Abstract: The cutting device comprises a first block or ram, and a second block or receptacle. The ram has a channel that extends along its longitudinal length, the channel is sized and configured to accept at least a portion of a cutting blade. The receptacle has a hollow sized and configured to accept at least a portion of the ram. The blade is arranged within the hollow and extends from the receptacle into the hollow and toward the ram. The blade is advantageously recessed within the ram. In one embodiment, the ram is attached to a drive coupled to a sewing machine, and the receptacle is attached to the sewing machine. The ram is moveable between a retracted position, in which the ram is separated from the receptacle, and an extended position, in which at least a portion of the ram is housed within the receptacle.Type: GrantFiled: July 22, 1999Date of Patent: February 25, 2003Assignee: Orange County Industrial Sewing Machine Co., Inc.Inventor: John Y. Lee
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Publication number: 20020195035Abstract: A cloth cutting knife driving device is capable of being released, through an interlocking connection between an upper knife rocking arm and a sewing machine main shaft. The device includes a drive shaft, which is able to swing rotatably, by interlocking with a main shaft, a rocking arm rotatably supported on the drive shaft at one end providing a rocking motion, and a cloth cutting knife supported at the one end of the rocking arm that is rigidly held in a cloth cutting position or an inactive position, which is vertically displaced through the motion of the arm. The device has a coupled and released state between the drive shaft and rocking arm, which are brought about by an engaging part on the drive shaft and a movable member, movable relative to the rocking arm in a direction perpendicular to an axis of the drive shaft.Type: ApplicationFiled: May 20, 2002Publication date: December 26, 2002Inventor: Kazuya Sadasue
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Patent number: 6460474Abstract: A side cutter for a sewing machine enables the sewing machine to carry out sewing and cutting of cloth irrespective of its thickness and can be attached and detached to and from the sewing machine body easily and speedily. The side cutter 50 for a sewing machine has a holder coupling section 69 formed behind a presser foot 53 located under a frame body 52, and a link frame 56 is attached to the frame body 52 to transmit a vertical movement of a sewing machine needle to movable blade 55. The movable blade 55 is fixed to a lower front end portion of the link frame 56 through a spring washer 70.Type: GrantFiled: October 16, 2001Date of Patent: October 8, 2002Assignee: Nishi Manufacturing Co., Ltd.Inventor: Saburo Nishi
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Patent number: 6230637Abstract: A sewing installation for the production of a piped pocket opening in a cloth workpiece comprises two cutting units each with a corner cutting knife, which have two knives each. For the production of straight or diagonal corner cuts, one knife of a corner cutting knife is pivotally adjustable about an axis in the direction of the incision which substantially constitutes the pocket opening.Type: GrantFiled: February 29, 2000Date of Patent: May 15, 2001Assignee: Beisler GmbHInventors: Karl-Heinz Wengerter, Bernd Rausch, Klaus Seufert
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Patent number: 6101960Abstract: An overlock sewing machine has a movable cutter which is activated in association with rotation of a main drive shaft to cooperate with a fixed cutter provided in the same plane with an upper surface of a needle plate, to thereby cut a work while the work is being stitched. A link mechanism includes a drive link having one end rotatably connected to a mount and the other end is connected to the movable cutter and a swingable link having an arcuate guide groove extending between one end and a center axis thereof around which the swingable link is swingingly moved. The drive link has a point between opposite ends thereof operatively connected to the arcuate guide groove of the swingable link. An operating device includes an operating shaft which is operatively connected to the point of the drive shaft so that the point of the drive link may be substantially moved along the arcuate guide groove of the swingable link between said one end and center axis thereof by manipulation of an operating knob.Type: GrantFiled: April 13, 1999Date of Patent: August 15, 2000Assignee: Janome Sewing Machine Co., Ltd.Inventors: Yoshikazu Ebata, Satoshi Maruo, Eiichi Shomura
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Patent number: 6047654Abstract: A sewing installation for the production of a piped pocket opening in a cloth workpiece comprises two cutting units each with a corner cutting knife, which have two knives each. For the production of straight or diagonal corner cuts, one knife of a corner cutting knife is displaceable and adjustable in the direction of the incision which substantially constitutes the pocket opening.Type: GrantFiled: September 9, 1999Date of Patent: April 11, 2000Assignee: Duropp Adler AktiengesellschaftInventor: Tobias Kaufhold
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Patent number: 5960729Abstract: A pressing member for a sewing machine arranged such that end portions of a pair of materials are sent into a guide path provided between a pair of presser feet extending in front of a needle drop point so that their upper hems are cut even by a lower knife and upper knife, wherein an air introduction pipe is connected to an upper surface of one presser foot, air is ejected towards a side of the other presser foot between an upper guide and lower guide being vertically overlapped rearward of the lower knife and upper knife, and air is sprayed onto one material on the same side so that this material can be securely overlapped onto the other material.Type: GrantFiled: May 28, 1998Date of Patent: October 5, 1999Assignee: Yamato Mishin Seizo Kabushiki KaishaInventors: Fumio Matsumoto, Kazunari Kobayashi
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Patent number: 5694870Abstract: A sewing machine has improved material cutting before stitching. The machine includes a sewing head and stitch area where stitching of strip material occurs. Strip material is fed by a timing belt along a predetermined path of travel into the stitch area. A lower cutter roll is positioned along the predetermined path of travel, and the strip material passes over the lower cutting roll. The lower cutter roll is driven by a transmission system connected to the sewing head motor. At least one circular configured, freely rotatable rotary knife engages the lower cutter roll and any strip material passing thereover is cut before stitching.Type: GrantFiled: September 11, 1995Date of Patent: December 9, 1997Assignee: Juki America, Inc.Inventors: Lazar A. Morgulis, Charles Zimmerman, Anatoly Berdichevsky
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Patent number: 5634418Abstract: A cloth cutter attachment (11) is mounted to a conventional double needle sewing machine (10) for shifting a cutter assembly mount (27) fore and aft past the needle mount assembly (26) of the sewing machine (10) so that its cutting blade (76) shifts between cutting positions ahead of and behind the double needles (17) of the sewing machine (10). The cloth cutter attachment (11) allows a cut (161) to be made in a cloth material between the two rows of stitches (158,159) sewn by the double needles (17) for forming a set-in pocket.Type: GrantFiled: July 20, 1995Date of Patent: June 3, 1997Assignee: Atlanta Attachment CompanyInventors: Elvin C. Price, Preston B. Dasher, Erie G. Huddleston
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Patent number: 5566633Abstract: An automatic industrial sewing machine which increases productivity and improves quality in the sewing of linings to facing material in the manufacture of jackets. The machine automatically inserts a plurality of different rates of fullnesses at predetermined locations in the seam between the lining and the facing, for a preset number of stitches for each fullness. It also provides positive feeding for piping sewn into the seam which eliminates stretching or bunching of the piping. Finally, the material is held in position after release of the drag clamp by the use of a jet stream of air impinging on the material. The operation of the machine is automatic in that the operator need only place the facing and lining into the drag clamp and into the air guide and depress a switch.Type: GrantFiled: December 28, 1993Date of Patent: October 22, 1996Assignee: G&G Sewing Machine Company, Inc.Inventor: Martin K. Wesstrom
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Patent number: 5555834Abstract: A double-needle chuck assembly for a sewing machine is provided with a knife that is moveable from a position on one side of the needles to a position on the other side. This enables a closed slit, as might be required for a pocket of a garment, to be produced with stitching on both sides and at the ends thereof without reversing the direction of movement of the fabric or using a separate step in a production line. The knife is mounted on a rod which engages a slot extending between the needles, with the rod being securable in either of the two positions by a detent mechanism. Movement of the rod to change positions of the knife may be performed manually or by a pneumatic actuator.Type: GrantFiled: April 17, 1992Date of Patent: September 17, 1996Inventor: Kevin B. Bonner
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Patent number: 5529005Abstract: A towel cloth drawing-out device comprises a pair of working tables facing each other with a gap therebetween, a towel cloth drawing unit for drawing out the towel cloth from the towel material to hang the same in the gap, a towel cloth clamp member which is provided in the gap and is able to reciprocate in the drawing direction of the towel cloth, a driving unit for reciprocating the towel cloth clamp member and a vertical wall which is provided on the side of one of the working tables, the working table being disposed on the drawing side of the towel cloth, for clamping the same between the towel cloth clamp member and itself.Type: GrantFiled: July 27, 1994Date of Patent: June 25, 1996Assignee: The Singer Company N.V.Inventors: Kenichi Saotome, Yuji Ohoshima
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Patent number: 5513585Abstract: A device for cutting and turning a piped opening in a cloth workpiece which includes a main piece of cloth and a cloth strip sewed to it. The workpiece has a slit, and corner cuts are formed at the slit ends by corner knives with the workpiece lying on a support plate. Turning tools are introduced into the slit at positions located spaced from the corner cuts. The turning tools are then moved apart toward positions located closer to the corner cuts and thereupon lowered, so as to turn the piped opening. Inserting devices may be provided for initially pushing at least part of the workpiece into the slit before being engaged by the turning tools. An orienting device furthermore may orient the workpiece at an acute angle or perpendicular to the support plate for being engaged by the turning tools.Type: GrantFiled: June 17, 1994Date of Patent: May 7, 1996Assignee: Durkopp Adler AktiengesellschaftInventors: Herbert Diekmann, Herbert Struck, Heinz Goldbeck, Dietrich Kahler
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Patent number: 5355816Abstract: A shirring blade assembly is added to a quilting machine to enable the fabrication of a shirred topmost quilting layer on an upper sleeping surface of a mattress fabricated by the machine. The various layers to be laminated into the quilted upper sleeping surface include filler and foam layers for resilience. As the various layers are fed through the quilting machine, the shirring blade assemblies reciprocate in and out to gather the material in the desired shirred configuration, and the configuration is fixed by stitching along selectively spaced stitch lines. The resulting product is cut, trimmed and beaded about its periphery, after which it is incorporated in a mattress.Type: GrantFiled: April 28, 1992Date of Patent: October 18, 1994Inventor: Michael A. Echevarria
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Patent number: 5331910Abstract: An auxiliary transport device for sending out workpieces sewn on an elastic tape by a sewing machine is composed of front and rear rollers and a belt transmission device, and a cutter between the rollers, and one of the rollers is rotated and driven in synchronism with the sewing machine. A belt of the belt transmission device transmits the rotation of one roller to the other roller and works to transport the workpieces while pressing and flattening them on the cloth feed surface, and prevents the end of workpieces from curling up due to shrinkage of the tape when the tape is cut, thereby leading the end smoothly to the rear roller.Type: GrantFiled: January 19, 1993Date of Patent: July 26, 1994Assignee: Pegasus Sewing Maching Mfg. Co., Ltd.Inventors: Hirochika Mukai, Tomoyuki Nakajo
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Patent number: 5259328Abstract: A cutting device for a sewing system having a work table, and a material clamp on the work table for transporting sewing material to a cutting point. The cutting device includes two wedge-shaped knives arranged at the cutting point, for producing gusset cuts in the material, and an elongated opening in the work table for allowing the wedge-shaped knives to pass through the work table to cut the material. The cutting device further includes a clamping device for clamping the material at the cutting point so as to increase the tension in the material and thereby increase the controllability of the location at which the wedge-shaped knives make the gusset cuts. Preferably the camping device which includes two transversely movable clamp halves tightens the sewing material transverse to the direction of transport of the sewing material. Further, a slide plate attached to the surface of the work table includes shoulders or tensioning beads for tensioning the material.Type: GrantFiled: June 2, 1992Date of Patent: November 9, 1993Assignee: Durkopp Adler AktiengesellschaftInventors: Thomas Noltge, Klaus Moller
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Patent number: 5052317Abstract: An apparatus for cutting strip-shaped sewing material on a sewing machine by means of power-operated cutters co-operating in scissor-like manner.For enabling as well the separation of strips of materials that are hard to cut and for increasing the safely cuttable strip width in general, the invention proposes a cutting apparatus designed in the manner of a "guillotine". The apparatus is characterized by two cutter plates (1, 2) of equal size which are each formed with two cutting edges (1.1, 1.2; 2.1, 2.2) and which are disposed on a support (3) so as to be pressable against each other and at the same time linearly slidable in opposite directions with respect to each other.Type: GrantFiled: November 22, 1989Date of Patent: October 1, 1991Inventor: Helmut Schips
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Patent number: 4905615Abstract: The tape-like facing band is fitted annularly around the carcass (M) and the front surface of the casing is supported on said carcass, which is received in a containing structure (3) with a boundary edge (3B) from which the carcass and the facing band partially project; a guide rail (7,9) extends around said edge for a supporting carriage (20) which has orientable rollers (24) for passing over the curves at the corners and is motorized; a further trolley (42) is movable on said rails and connected to said supporting carriage by an articulation (40); a cutter (18) is capable of acting in a position in front of that of the stitcher.Type: GrantFiled: December 9, 1988Date of Patent: March 6, 1990Assignee: Permaflex S.p.A.Inventor: Vittorio Pofferi
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Patent number: 4773342Abstract: A control device for trimming knives on flat-bed sewing machines comprises a rocking lever 19 fulcrumed on a fixed pivot 20 and receiving an oscillatory motion from a connecting rod 18. The rocking lever operates a movable knife 14 through a drive group 21 provided with a movable pivot 29 slidably engaged in an elongate shaped opening 30 associated with the the rocking lever. A disengagement group 40 enables the movable pivot 29 to be brought from an engagement position in which it is in engagement with an engagement portion 30b of the elongate shaped opening 30 to operate the movable knife 14, to a disengagement position in which the movable pivot slides within a curvilinear portion 30a of the elongate opening in order to deactivate the movable knife 14. The displacements of the movable pivot 29 take place upon command of a disengagement lever 32 slidably engaging said pivot in the region of an elongate guide opening 32a.Type: GrantFiled: January 19, 1988Date of Patent: September 27, 1988Assignee: Rockwell-Rimoldi S.p.A.Inventor: Emilio Fietta
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Patent number: 4649841Abstract: An overlock machine is designed for easy placement of a thread through a looper. The members which would obstruct access to the looper are mounted on a movable portion of a bed frame. By swinging open the movable portion, the obstructing members are moved to their inoperative position. A fixed knife only, or both the fixed knife and the movable knife are mounted on the movable portion.Type: GrantFiled: April 28, 1986Date of Patent: March 17, 1987Assignee: Maruzen Sewing Machine Co., Ltd.Inventor: Osamu Koshinaka
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Patent number: 4603647Abstract: A chainstitch machine has an edge trimmer knife driven in vertical chopping motion adjacent the needle by a linkage actuated by an oscillating shaft that operates synchronously relative to stitch-forming components. The linkage includes a bracket oscillated by the shaft and a joint movable along the bracket between a first position, in which the axis of the joint is offset from the axis of the shaft to communicate oscillating movement to the knife, and a second position, in which the axis of the joint is concentric with the shaft and transmits no oscillatory movement. In the second position, the knife is retracted by the linkage to a location above the region through which work pieces move, but in the first position, the linkage moves the knife down so that part of the knife extends through the plane of the throat plate and is pressed against an edge of a throat plate insert by a small pressure slide entirely within a notch in the insert and guided by juxtaposed edges of the notch.Type: GrantFiled: January 14, 1985Date of Patent: August 5, 1986Assignee: MIM Industries, Inc.Inventors: Ralph F. Conley, Jr., Ricky F. Frye
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Patent number: 4594955Abstract: A hemming machine has a first station with an ultrasonic slitting device for cutting woven material that has enough thermoplastic content to be cut and fused by an ultrasonic device. At a second station, a hemming device folds and sews the material and by providing only two folds, results in a three layer hem which does not fray because the edge has been fused by the ultrasonic slitting device.Type: GrantFiled: September 5, 1985Date of Patent: June 17, 1986Inventor: Richard Lichtenberg
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Patent number: 4536891Abstract: A method of manufacturing pantyhose by means of sewing machine using hose shaped leg parts comprises arranging the leg parts in a flattened side by side longitudinal relationship, cutting each leg part along an edge from the waist rim of its panty area up to a crotch leaving a remaining leg portion of each leg uncut so as to form upper and lower plies of each leg cut along their inner opposite edges, sewing the cut edges of the laterally adjacent plies together from the waist rim to the crotch to form a seam, deflecting the outer plies outwardly to overlie the remaining leg portions and continuing to sew the seam by sewing in the same direction the edge portions of the upper plies together. A sewing machine carrying out the invention includes a presser foot having a sole with a toe shaped front part which engages into each leg portion of the pantyhose to be formed.Type: GrantFiled: August 25, 1982Date of Patent: August 27, 1985Assignee: Pfaff Industriemaschinen GmbHInventor: Werner Angele
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Patent number: 4517908Abstract: An automatic notching device in a sewing machine comprises a worm engaged with a worm gear fixed to a driving shaft of the sewing machine, a driving cam having a cam portion formed with a plurality of protrusions and a cylindrical boss portion, and an actuating link pivotally moved dependant on the movement of said cam. A cutter-holding member is provided to move upwardly and downwardly by the movement of actuating link transmitted via a linkage member and a swing arm. During the movement of the cutter-holding member, the cutter cooperates with a cutter-guiding member disposed adjacent to a side of needle-guiding member, in order to effect a simultaneous notching operation in sewing a curved portion of garment. The notching device further comprises a push rod having at one end a lever and at the other end a yoke. An actuating shaft is connected at one end to said yoke and has a roller at its other end. Depending upon the position of the lever the roller is moved upwardly or downwardly.Type: GrantFiled: June 12, 1984Date of Patent: May 21, 1985Assignee: Daewoo Heavy Industries Ltd.Inventor: Kwang S. Park
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Patent number: 4467738Abstract: A sewing machine comprises a rotatable main shaft which drives a needle upwardly and downwardly over a sewing station to sew through material which is moved thereover and which includes a trimming knife mounted adjacent the needle for upward and downward movement for selectively and periodically cutting the material. The trimming knife is driven by a linkage mechanism from an eccentric drive and the eccentric drive is detachably connected between the main shaft and the linkage mechanism and permits the knife to be driven with the mainshaft of the sewing machine or by an independent drive through a separate detachable drive mechanism. In one embodiment a positioning motor is connected to the drive through a hand wheel and an engageable and disengageable clutch so that it may drive a linkage mechanism including an eccentric to move the knife upwardly and downwardly for cutting the material being sewn during the operation of the sewing machine or separately when the sewing machine drive is discontinued.Type: GrantFiled: October 20, 1982Date of Patent: August 28, 1984Assignee: Pfaff Industriemaschinen GmbHInventors: Karl-Heinz Walther, Kurt Vollmar, Albert Dusch
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Patent number: 4438711Abstract: A fur sewing machine equipped with two feed discs is provided with a trimming mechanism. The trimming mechanism includes a trimming blade which is mounted for oscillatory motion close above the feed discs, and a fixed counterblade. The counterblade is secured to a blade holder which, at the same time, is used for axially fixing the feed disc which is supported on a displaceable carrier bracket. An exhaust device equipped with an injector nozzle is provided to remove the off cuts.Type: GrantFiled: October 20, 1982Date of Patent: March 27, 1984Assignee: Pfaff Industriemaschinen GmbHInventor: Herbert Dietrich
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Patent number: 4413575Abstract: A device for trimming an edge of a tubular article to form a portion of a pantyhose prior to the sewing of a gusset. A support is rotatable about its vertically disposed central axis and cooperates with a mask supported independently of the support and normally stationary. The mask has slots with which trimmers in the form of electrical heating elements cooperate, each of the trimmers being movable independently of the other relative to the mask. The support is rotated relative to the mask and one of the trimmers penetrates and cuts the cloth by heat action and enters one of the slots in the mask so that during continued rotation of the support an edge of the article is trimmed from the remainder by the aforesaid trimmers to remain engaged about the support as an annular band.Type: GrantFiled: December 22, 1980Date of Patent: November 8, 1983Assignee: Solis S.r.l.Inventor: Vinicio Gazzarrini
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Patent number: 4384540Abstract: A sewing machine has a work bearing surface in a substantially horizontal plane and a cutting device for the work including a bottom knife disposed in the horizontal plane of the work bearing surface and a top knife movable in the vertical direction. The cutting device has a toggle lever transmission drive comprising two articulatedly connected connecting rods, the joint of which is connected with a drive element. One of the two connecting rods is connected, at an outer joint thread with the top knife.Type: GrantFiled: October 13, 1981Date of Patent: May 24, 1983Assignee: Pfaff Industriemaschinen GmbHInventors: Kurt Vollmar, Karl H. Walther
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Patent number: 4175498Abstract: An apparatus for cutting sewed seams for use in combination with a home-type sewing machine is disclosed. The unit is lightweight, low cost and may be manufactured to fit any brand of sewing machine.Type: GrantFiled: February 1, 1978Date of Patent: November 27, 1979Inventor: Dean Walters