Patents by Inventor Takatsugu Aihara
Takatsugu Aihara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050071967Abstract: There is provided a sample warper with a series yarn guide mechanism comprising: a warper drum; a plurality of conveyor belts movably provided on a peripheral side face of the warper drum; a plurality of yarn guide units arranged in series opposing to a front face of the warper drum, and a plurality of yarn feed bobbins each mounted on the respective yarn guide units, wherein the plural yarn guide units each repeats rotation and suspension thereof, whereby yarns pulled out from the yarn feed bobbins are wound on the conveyor belts in a preset yarn arrangement order.Type: ApplicationFiled: September 22, 2004Publication date: April 7, 2005Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20050066491Abstract: There is provided a multi-shaft rotary creel where the degree of freedom for warping can be further improved as compared with the conventional single shaft rotary creel and occurrence of tension fluctuations can be prevented. There are further provided a sample warper and a warping method where warping can be performed efficiently by installing the multi-shaft rotary creel. The multi-shaft rotary creel comprises: a base body; a main shaft rotatably mounted on the base body so as to project forward, a plurality of supporting shafts rotatably mounted on a forward projecting portion of the main shaft; and a plurality of bobbins mountable on each of the supporting shafts, which is installed opposing to a sample warper with a plurality of yarn guides, and wherein, while the main shaft or each of the supporting shafts rotates in synchronism with rotation of the yarn guides, simultaneous warping of plural yarns by the main shaft or each of the supporting shafts can be performed.Type: ApplicationFiled: September 13, 2004Publication date: March 31, 2005Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20050060857Abstract: There is provided a sample warper with an idle running preventing mechanism of a yarn guide, wherein yarns are automatically exchanged and successively wound on the warper drum according to a preset yarn order by passing the yarns between the yarn guides and the yarn selection guides, and wherein, when a first yarn being wound on the warper drum by a first yarn guide is exchanged to a second yarn, after a yarn removing operation for removing the first yarn from the first yarn guide is finished, a yarn feeding operation for feeding the second yarn to a second yarn guide is performed while the empty first yarn guide makes one rotation. The sample warper can achieve such an advantage that an idle running time of a yarn guide when exchanging yarns can be reduced considerably and a speed of yarn exchanging is improved remarkably.Type: ApplicationFiled: September 13, 2004Publication date: March 24, 2005Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 6578244Abstract: There is provided a direct-winding sample warper comprising: a warper drum; yarn winding means mounted on a circumferential surface of the warper drum so as to be rotatable circumferentially and movable longitudinally on the warper drum; a yarn selector provided in correspondence to the yarn winding means; and a plurality of parallel shedding means extending longitudinally and parallel each other on the side of the warper drum; wherein the yarn winding means is operable to directly wind at least one yarn, which is payed out from a creel on which bobbins are supported, around the circumferential surface of the warper drum. In the direct-winding sample warper, a yarn is wound directly on a warper drum by a yarn winding means without using a conveyer belt so that various inconveniences due to the conventional conveyer belt can be entirely eliminated.Type: GrantFiled: October 26, 2001Date of Patent: June 17, 2003Assignee: Suzuki Warper Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 6449819Abstract: An electronically controlled sample warper having a yarn exchanging mechanism is provided which comprises a rotary creel supporting a plurality of bobbins around which different kinds and/or the same kind of yarns are wound and a bobbin station supporting a plurality of bobbins on which different kinds and/or the same kind of yarns are wound in a standby state. With this construction, it is possible to employ various kinds of yarns and perform yarn exchanging thereof unlimitedly, thus enabling various pattern warping to be freely performed with the reduced warping time.Type: GrantFiled: March 2, 2001Date of Patent: September 17, 2002Assignee: Suzuki Warper Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 6449820Abstract: There is provided a sample warper which comprises a warper drum, a plurality of conveyor belt, conveyor belt feed means, a plurality of yarn introduction means, a plurality of yarn selection means, a plurality of shedding means, and creel means for supporting a plurality of bobbins, wherein the feed rate of the conveyor belt can be changed in accordance with the number of yarns to be warped simultaneously on the basis of preset warping conditions and warping designs. Accordingly, undulation can be prevented from occurring on a surface of wound yarns due to change in the number of the yarns to be warped simultaneously.Type: GrantFiled: April 27, 2001Date of Patent: September 17, 2002Assignee: Suzuki Warper, Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 6427299Abstract: Provided are a sample warper and a warping method where data regarding yarn diameters of counts are preliminarily input and stored, counts of warping yarns as well as pattern data for warping are input, a conveyor belt feed pitch per revolution of a yarn introduction means is calculated with a warping width, the number of warping yarns, and a warping length (the number of warping windings), and the conveyor belt feed pitch per revolution of the yarn introduction means is controlled according to the counts (yarn thicknesses or yarn diameters). Accordingly, a surface of the yarns wound on a warper drum is finished in a flat state without undulation irrespective of the counts, thereby solving troubles in the next weaving step.Type: GrantFiled: April 27, 2001Date of Patent: August 6, 2002Assignee: Suzuki Warper, Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 6397442Abstract: In a sample warper, which includes a single yarn introduction means or a plurality of yarn introduction means for winding one or more yarns concurrently on a plurality of conveyer belts rotatably mounted on one side surface of a warper drum and movable on the warper drum at a predetermined rate of feed, a plurality of parallel lease rods arranged on a longitudinal side surface of the warper drum, and a creel on which a plurality of bobbins are supported, a plurality of short feed belts are mounted on the circumferential surface of the warper drum at its end adjacent to the yarn introduction means in such a way that the upper surface of the short feed belts are disposed radially outwardly of an imaginary cylindrical surface enclosing upper surfaces of the plural conveyer belts with respect to the axis of the warper drum.Type: GrantFiled: August 27, 2001Date of Patent: June 4, 2002Assignee: Suzuki Warper Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 6385826Abstract: A sample warper including a plurality of yarn guides, rotatably mounted on one side surface of a warper drum, for winding a plurality of yarns on the warper drum, a yarn selector mounted on a base supporting the warper drum for supplying the individual yarn selectively to one of the yarn guides and receiving selectively the yarn from one of the yarn guides, and a rotary creel supporting a plurality of bobbins of various kinds and/or a single kind of yarns. To detect a trouble, such as mis-winding or double-yarn-winding, the sampler warper is equipped with a yarn detector disposed adjacent to the peripheral edge of the warper drum for detecting whether or not the individual yarn is caught by the associated yarn guide, thereby confirming transferring of the yarn between said yarn guide and said yarn selector so that the yarns are successively wound neatly on said warper drum in preset yarn order.Type: GrantFiled: May 31, 2001Date of Patent: May 14, 2002Assignee: Suzuki Warper Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20020050038Abstract: There is provided a direct-winding sample warper comprising: a warper drum; yarn winding means mounted on a circumferential surface of the warper drum so as to be rotatable circumferentially and movable longitudinally on the warper drum; a yarn selector provided in correspondence to the yarn winding means; and a plurality of parallel shedding means extending longitudinally and parallel each other on the side of the warper drum; wherein the yarn winding means is operable to directly wind at least one yarn, which is payed out from a creel on which bobbins are supported, around the circumferential surface of the warper drum. In the direct-winding sample warper, a yarn is wound directly on a warper drum by a yarn winding means without using a conveyer belt so that various inconveniences due to the conventional conveyer belt can be entirely eliminated.Type: ApplicationFiled: October 26, 2001Publication date: May 2, 2002Applicant: Suzuki Warper Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20020029446Abstract: In a sample warper, which includes a single yarn introduction means or a plurality of yarn introduction means for winding one or more yarns concurrently on a plurality of conveyer belts rotatably mounted on one side surface of a warper drum and movable on the warper drum at a predetermined rate of feed, a plurality of parallel lease rods arranged on a longitudinal side surface of the warper drum, and a creel on which a plurality of bobbins are supported, a plurality of short feed belts are mounted on the circumferential surface of the warper drum at its end adjacent to the yarn introduction means in such a way that the upper surface of the short feed belts are disposed radially outwardly of an imaginary cylindrical surface enclosing upper surfaces of the plural conveyer belts with respect to the axis of the warper drum.Type: ApplicationFiled: August 27, 2001Publication date: March 14, 2002Applicant: SUZUKI WARPER LTD.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20020026698Abstract: A sample warper including a plurality of yarn guides, rotatably mounted on one side surface of a warper drum, for winding a plurality of yarns on the warper drum, a yarn selector mounted on a base supporting the warper drum for supplying the individual yarn selectively to one of the yarn guides and receiving selectively the yarn from one of the yarn guides, and a rotary creel supporting a plurality of bobbins of various kinds and/or a single kind of yarns. To detect a trouble, such as mis-winding or double-yarn-winding, the sampler warper is equipped with a yarn detector disposed adjacent to the peripheral edge of the warper drum for detecting whether or not the individual yarn is caught by the associated yarn guide, thereby confirming transferring of the yarn between said yarn guide and said yarn selector so that the yarns are successively wound neatly on said warper drum in preset yarn order.Type: ApplicationFiled: May 31, 2001Publication date: March 7, 2002Applicant: SUZUKI WARPER LTD.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20020013985Abstract: There is provided a sample warper which comprises a warper drum, a plurality of conveyor belt, conveyor belt feed means, a plurality of yarn introduction means, a plurality of yarn selection means, a plurality of shedding means, and creel means for supporting a plurality of bobbins, wherein the feed rate of the conveyor belt can be changed in accordance with the number of yarns to be warped simultaneously on the basis of preset warping conditions and warping designs. Accordingly, undulation can be prevented from occurring on a surface of wound yarns due to change in the number of the yarns to be warped simultaneously.Type: ApplicationFiled: April 27, 2001Publication date: February 7, 2002Applicant: SUZUKI WARPER LTD.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20020002765Abstract: Provided are a sample warper and a warping method where data regarding yarn diameters of counts are preliminarily input and stored, counts of warping yarns as well as pattern data for warping are input, a conveyor belt feed pitch per revolution of a yarn introduction means is calculated with a warping width, the number of warping yarns, and a warping length (the number of warping windings), and the conveyor belt feed pitch per revolution of the yarn introduction means is controlled according to the counts (yarn thicknesses or yarn diameters). Accordingly, a surface of the yarns wound on a warper drum is finished in a flat state without undulation irrespective of the counts, thereby solving troubles in the next weaving step.Type: ApplicationFiled: April 27, 2001Publication date: January 10, 2002Applicant: SUZUKI WARPER LTD.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Publication number: 20010022015Abstract: An electronically controlled sample warper having a yarn exchanging mechanism is provided which comprises a rotary creel supporting a plurality of bobbins around which different kinds and/or the same kind of yarns are wound and a bobbin station supporting a plurality of bobbins on which different kinds and/or the same kind of yarns are wound in a standby state. With this construction, it is possible to employ various kinds of yarns and perform yarn exchanging thereof unlimitedly, thus enabling various pattern warping to be freely performed with the reduced warping time.Type: ApplicationFiled: March 2, 2001Publication date: September 20, 2001Applicant: SUZUKI WARPER LTDInventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 5970591Abstract: An electronically controlled sample warper having a yarn exchange mechanism is provided which is capable of extremely reducing yarn looseness possibly occurring during yarn exchange as compared with conventional methods, preventing large variations in yarn tension produced when a yarn is removed to improve the quality of warping and significantly improve the speed of yarn exchange, unlike conventional methods which do produce variations in yarn tension during yarn exchange to cause a degraded quality of warping, and eliminating the need for reducing a warping speed even during yarn exchange to largely reduce a warping time, as compared with the case where a conventional yarn exchange mechanism is used.Type: GrantFiled: January 25, 1999Date of Patent: October 26, 1999Assignee: Suzuki Warper Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara
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Patent number: 5206976Abstract: With the automatic shedding mechanism according to this invention, the warping conditions are inputted by using the program setting unit 151. When it arrives at the predetermined position, the warping drum stops rotating. The closed reed 38 is operated to from lease, into which the lease rods 88 enter so as to maintain the lease and move upward to keep the lease. Next, the lease tape driving mechanism 94 is operated to have its movable unit 98 advance, so that the lease tapes T will be let off onto the warping drum 12 to the predetermined amount. Then the lease tapes go between the lease to maintain them. The above operation will be repeated for every band for the number of times according to the total number of the warping yarns and warping width. Therefore the shedding procedure will be continuously performed without cutting the warping yarns for each band. After the warping procedure, the lease cords are passed through the holes on the heddle hooks at the leading ends of the lease tapes.Type: GrantFiled: April 17, 1991Date of Patent: May 4, 1993Assignee: Suzuki Warper Ltd.Inventors: Takatsugu Aihara, Soichiro Hisano
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Patent number: 4972562Abstract: An electronically controlled sample warper capable of warping a plurality of warp yarns simultaneously. In the warper, a plurality of warp yearns can be concurrently wound on a warping drum with omitting a yarn exchanging step to eliminate any time loss for the yarn exchange, thus reducing the warping period of time.Type: GrantFiled: November 22, 1989Date of Patent: November 27, 1990Assignee: Suzuki Warper, Ltd.Inventors: Yoshihiro Tanaka, Takatsugu Aihara, Minoru Otsuka