Patents Assigned to Shima Seiki Mfg., Ltd.
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Patent number: 8216029Abstract: It is an object of the present invention to provide a cutting machine capable of sharpening in such a manner that an angle of a cutting edge can be kept constant. A support block 14 is provided with two arms 14a, 14b which are spaced at a certain angle, and the arms 14a, 14b have rotation shafts 12a, 13a of rotary whetstones 12, 13, respectively, extending upright from the vicinities of the front ends thereof. The rotary whetstones 12, 13 has, at front ends thereof, flat surfaces perpendicular to the rotation shafts 12a, 13a to sharpen the one side 11b and the other side 11c of the cutting edge 11a of the cutting blade 11, respectively. The whetstone holding mechanism 15 can be moved in parallel linearly or can swing almost linearly, as mainly indicated by the arrow 15a, to bring the flat surface 12b of the rotary whetstone 12 into contact with the one side 11b of the cutting blade 11, as depicted by a broken line, thereby allowing the switch to the sharpening state.Type: GrantFiled: September 24, 2008Date of Patent: July 10, 2012Assignee: Shima Seiki Mfg., Ltd.Inventors: Kenji Ikoma, Reiji Arikita
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Publication number: 20120079856Abstract: A yarn feeding device for a knitting machine comprises a motor for driving a roller from which a yarn is fed out, and a rotatable arm which intermediately stores the yarn fed out from the roller, and the yarn is fed from the arm to a knitting machine body. A torque generator is provided to apply a variable torque to the arm. A yarn speed is obtained from a loop length of a stitch for each knitting needle and a knitting speed calculated on the basis of knitting data used in the knitting machine body. The yarn speed is converted into a torque to be applied to a buffer using a conversion table at each knitting section in a knitting course so as to correct a yarn tension fluctuation caused by the yarn speed, and the torque generator is controlled in accordance with the torque thus obtained. The yarn tension fluctuation is reduced so that high-speed knitting and knitting using a weak yarn can be facilitated.Type: ApplicationFiled: May 18, 2010Publication date: April 5, 2012Applicant: SHIMA SEIKI MFG., LTD.Inventors: Hirokazu Nishitani, Yoshiyuki Komura
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Patent number: 8132663Abstract: A conveyor table of a cutting machine capable of making a difference in level between a conveyor table and a air table small, and preventing a sheet material from shifting or collapsing with a simple configuration is provided. A pair of caterpillar tracks 10 formed by bridging a chain 11 over a pair of sprockets 12, 13 arranged at a carry-in side end and a carry-out side end in a conveying direction, a plurality of brush mounts 20 attached to the chain 11 in parallel to connect the caterpillar tracks 10, and a brush block 30 having bristles 32 arrayed on each of the brush mounts 20 are arranged. The brush mount 20 has a portion on the carry-in side fixed to the chain 11 and a portion on the carry-out side not fixed to the chain 11.Type: GrantFiled: October 21, 2008Date of Patent: March 13, 2012Assignee: Shima Seiki Mfg., Ltd.Inventors: Kenji Nakai, Reiji Arikita
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Publication number: 20120000252Abstract: To provide a tubular knitted fabric and a knitting method thereof, which can be knitted without sewing by a flatbed knitting machine, and which is easily fitted to a three dimensional shape of a wearing region without detriment to appearance. As shown in (a), an outward side of thumb pouch 7 is knitted so as to continue in its wale direction to an end portion of a four finger body 6 and while repeats reciprocated knitting in its course direction. In the course direction, a row of stitches is formed in midway and hanging stitches 8, 9 are added on both sides respectively as stitches to be used for linking. In order to make the knitting needles that suspend the hanging stitches 8, 9 different from each other, the position of the row of stitches is shifted in a direction away from a knit end of the four finger body 6.Type: ApplicationFiled: February 20, 2010Publication date: January 5, 2012Applicant: SHIMA SEIKI MFG., LTD.Inventors: Nobuo Funaki, Takahiro Yamashita, Isao Yumiba, Takashi Kino
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Patent number: 8090467Abstract: To provide an apparatus and a method for knitting fabric using elastic yarns, in which the elastic yarns are able to be used while correcting the difference between the set tension and the actual tension without being subject to a lowered knitting efficiency or restrictions to knitting patterns. In a knitting machine 1, a tension meter 7 detects the actual tension T2 of a rubber yarn 5 when a carriage 3 reverses the running direction outside the knitting width of a fabric 9. The yarn sending length F at which the rubber yarn 5 is sent out from a yarn sending device 8 to a yarn route pathway for each knitting course is able to be obtained in advance as the length of the rubber yarn 5 consumed under the designated tension T1 for each knitting course. The yarn sending length F is corrected in such a manner that the difference between natural lengths L1, L2 of the rubber yarn 5, existing in the yarn route pathway under the set tension T1 and the actual tension T2, decreases.Type: GrantFiled: March 6, 2009Date of Patent: January 3, 2012Assignee: Shima Seiki Mfg., Ltd.Inventors: Masaki Minami, Hiroshi Minamide, Hirokazu Nishitani
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Publication number: 20100257989Abstract: A conveyor table of a cutting machine capable of making a difference in level between a conveyor table and a air table small, and preventing a sheet material from shifting or collapsing with a simple configuration is provided. A pair of caterpillar tracks 10 formed by bridging a chain 11 over a pair of sprockets 12, 13 arranged at a carry-in side end and a carry-out side end in a conveying direction, a plurality of brush mounts 20 attached to the chain 11 in parallel to connect the caterpillar tracks 10, and a brush block 30 having bristles 32 arrayed on each of the brush mounts 20 are arranged. The brush mount 20 has a portion on the carry-in side fixed to the chain 11 and a portion on the carry-out side not fixed to the chain 11.Type: ApplicationFiled: October 21, 2008Publication date: October 14, 2010Applicant: Shima Seiki Mfg., Ltd.Inventors: Kenji Nakai, Reiji Arikita
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Patent number: 7739886Abstract: A method of knitting a knitwear having an open part with a desired shape in which overlapping state of the open part is freely designed; the method comprising the steps of (a) to (f): a) a body is knitted by return knitting up to a joining starting location with a open part as a turn back position, wherein a right and left bodies are abutted at an overlapping portion of the open part, and a boundary of the front and back knitted is positioned on the needle bed on which the back body is assigned; b) rotating the body so that one of the boundaries is positioned between the front and back needle beds; c) joining the body and one of the left and right sleeve tubular parts (sleeve) to form one tubular part at one of the boundaries of the body and a joining side boundary of the sleeve; d) rotating the tubular part formed in step c so that the other boundary of the body is positioned between the front and back needle beds; e) joining the body and the other sleeve to form one tubular part at the other boundary ofType: GrantFiled: May 31, 2006Date of Patent: June 22, 2010Assignee: Shima Seiki Mfg., Ltd.Inventor: Kazuyoshi Okamoto
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Patent number: 7716954Abstract: A needle engaging with a loop at least lastly formed on a fabric formed just before inversion of a carriage is pulled by a pull-down cam formed in a composite cam system of the carriage while feeding a yarn to an opposite needle. When a feeding direction of a yarn fed from a yarn feeder is inverted accompanied with the inversion of the carriage, the tension force applied to the yarn is intensified to prevent tightening of the stitch of the knitted fabric.Type: GrantFiled: March 17, 2006Date of Patent: May 18, 2010Assignee: Shima Seiki Mfg., Ltd.Inventors: Hideki Naka, Tomoyuki Taniguchi, Yoshinori Shimasaki
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Patent number: 7693599Abstract: A knitting method is provided to knit a knitted fabric to the desired shape with sufficient pull down force acting to the knitted fabric without being piled up, when performing the bind off process after flechage knitting. The knitting method is related to knitting a knitted fabric of performing a bind off process after flechage knitting by using a flat knitting having at least a pair of front and back needle beds extending in a transverse direction and disposed opposite to each other in a cross direction, at least either of which is capable of being racked in the transverse direction so that loops can be transferred between the front and back needle beds.Type: GrantFiled: December 5, 2005Date of Patent: April 6, 2010Assignee: Shima Seiki Mfg., Ltd.Inventor: Kazuyoshi Okamoto
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Patent number: 7669278Abstract: The invention provides a brush mounting structure of an automatic cutting machine that can allow dismount of any desired brush from a brush mount, can allow sequential rotation of the movable brushes so that the brushes on the brush mounts can be rearranged in parallel, and can allow a clamping force for clamping engagement between the brush and the brush mount to be held against a load applied from a particular direction.Type: GrantFiled: July 7, 2003Date of Patent: March 2, 2010Assignee: Shima Seiki Mfg., Ltd.Inventor: Reiji Arikita
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Patent number: 7577488Abstract: A knitting method for knitting a tubular knitting fabric having gores of front and back knitted fabric parts which are different in size in the manner that no twisting of loops can be provided at the stage of the completion of the joining of the gores so that the tubular knitted fabric can be knitted up continuously without any need of rotation operation.Type: GrantFiled: November 29, 2005Date of Patent: August 18, 2009Assignee: Shima Seiki Mfg., Ltd.Inventor: Kazuyoshi Okamoto
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Patent number: 7543462Abstract: A yarn feeder includes a switching mechanism which presets a swing direction of the yarn feeding port after completion of a yarn feeding operation, and, after having completed a yarn feeding operation, changes over the swing of the yarn feeding port from one yarn feeding position to another standby position interlocking with the released selective operation of an entraining device, in which the switching mechanism includes a feeder rod having a yarn feeding port at its lower end, which is composed of at least two members, both of the members being arranged to relatively slide each other in a vertical direction and provided with a push-up member to force upward respectively.Type: GrantFiled: June 14, 2005Date of Patent: June 9, 2009Assignee: Shima Seiki Mfg., Ltd.Inventor: Masaki Miyamoto
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Patent number: 7539555Abstract: A knitting operation and a missing operation are alternately performed at the end portion of a knit fabric around a neck hole to reduce stitch density to less than that on the inside of the knit fabric, the stitch at the end part of the knit fabric is moved every three stitch courses to reduce a knitting width in increments of one stitch, and the stitch is formed at an empty needle resulting from the movement. Knitting conditions are also excellent since a neck hole or an armhole can be formed at a large slope such as two stitches in the horizontal direction every six stitch courses, and holing in the neck hole or an armhole can also be prevented, while, in addition, the wales are not laterally moved on the inside of the knit fabric.Type: GrantFiled: April 21, 2005Date of Patent: May 26, 2009Assignee: Shima Seiki Mfg., Ltd.Inventor: Kazuyoshi Okamoto
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Patent number: 7536878Abstract: The present invention provides a method of knitting a double tubular knitted fabric in which an outer tubular section can be formed independent from an inner tubular section while knitting the inner and outer tubular sections simultaneously by a flat knitting machine. Each of the front knitted fabric parts of the inner and outer tubular sections is assigned to one of the front and back needle beds, and each of the back knitted fabric parts of the inner and outer tubular sections is assigned to the other needle beds. The knitting method uses at least two yarn feeders, where the inner tubular section is formed using a yarn from one yarn feeder and the outer tubular section is formed using a yarn from the other yarn feeder. In knitting the outer tubular section, return knitting is performed where a loop is formed subsequent to the loop formed in a going course in a returning course. The outer tubular section is formed in the tubular form by connecting the loops at the boundary of the returning part.Type: GrantFiled: December 26, 2005Date of Patent: May 26, 2009Assignee: Shima Seiki Mfg., Ltd.Inventor: Tatsuya Kosui
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Patent number: 7529596Abstract: A knitting method of knit pants knitted using a flat knitting machine, wherein the knitting starts at a side part on either right side or left side including a side part of a vertical rise part and a side part of a leg part and ends at a side part on the other leg side including a side part of a vertical rise part and a side part of a leg part. A front knitted fabric part and a back knitted fabric part are knitted in the following steps so that a length of the front knitted fabric part from the side to the crotch can be made shorter than a length of the back knitted fabric part from the side to the crotch.Type: GrantFiled: January 12, 2005Date of Patent: May 5, 2009Assignee: Shima Seiki Mfg., Ltd.Inventor: Kazuyoshi Okamoto
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Patent number: 7460926Abstract: A knitting method provides an easy-to-wear knitted tubular knitted fabric which gives little stretching feeling and exhibits high fitness upon wearing by joining at least three tubular parts.Type: GrantFiled: April 11, 2006Date of Patent: December 2, 2008Assignee: Shima Seiki Mfg., LtdInventor: Kazuyoshi Okamoto
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Patent number: 7437895Abstract: The present invention aims to provide a seamless glove of high support performance knitted by flat knitting. The seamless glove has a base knitted fabric set up knitting from a tip of finger toward a mouth or from the mouth toward the tip of finger and knitted in such a manner that respective fingers, a four-finger body, a five-finger body are knitted on a rib knit structure basis using a stretch elastic yarn, and an elastic yarn in a tensed state is inlaid in the base knitted fabric. The base knitted fabric is knitted on a rib jacquard structure basis, and the inlay yarn is knotted at a location at which the knitting of the finger starts and at a finger crotch part, to prevent cast-off of the inlay yarn.Type: GrantFiled: October 7, 2004Date of Patent: October 21, 2008Assignee: Shima Seiki Mfg., LtdInventor: Masao Okuno
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Publication number: 20080229787Abstract: A knitting method of knit pants knitted using a flat knitting machine, wherein the knitting starts at a side part on either right side or left side including a side part of a vertical rise part and a side part of a leg part and ends at a side part on the other leg side including a side part of a vertical rise part and a side part of a leg part. A front knitted fabric part and a back knitted fabric part are knitted in the following steps so that a length of the front knitted fabric part from the side to the crotch can be made shorter than a length of the back knitted fabric part from the side to the crotch.Type: ApplicationFiled: January 12, 2005Publication date: September 25, 2008Applicant: Shima Seiki Mfg., Ltd.Inventor: Kazuyoshi Okamoto
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Publication number: 20080169041Abstract: In a tubular knitted fabric with a stripe pattern knitted by a flat knitting machine, to cause cross-over yarns to appear inside the tubular knitted fabric so as to eliminate cutting operation of the cross-over yarns. For each knitting of a plurality of courses, a first knitted fabric portion and a second knitted fabric portion are continuously knitted by switching a first knitting yarn and a second knitting yarn. The first knitted fabric portion and the second knitted fabric portion are knitted by continuously performing a first knitting process for knitting the first knitted fabric and a second knitting process for knitting the second knitted fabric alternately.Type: ApplicationFiled: August 4, 2004Publication date: July 17, 2008Applicant: Shima Seiki Mfg., Ltd.Inventor: Tomoaki Nakayama
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Patent number: 7353668Abstract: [PROBLEMS] To provide a yarn feeder in the yarn feeding device of a weft knitting machine in which a fabric having uniform stitches can be produced with high productivity without increasing the size of the yarn feeder. [MEANS FOR SOLVING PROBLEMS] In a switching mechanism arranged to switch a yarn feeder from feeding position to standby position while interlocking with selection release operation of a hauling means after feeding the yarn by setting the oscillating direction to the standby position of the yarn feeder after feeding the yarn, a neutral position holding means operated to be interlocked with the hauling means to hold the neutral position of the yarn feeder in a vertical altitude raised above the yarn feeding position is provided.Type: GrantFiled: June 14, 2005Date of Patent: April 8, 2008Assignee: Shima Seiki Mfg. Ltd.Inventor: Kenji Ikoma