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公开(公告)号：JPH08108490A
公开(公告)日：1996-04-30
申请号：JP27061294
申请日：1994-10-07
Applicant: TORAY INDUSTRIES
Inventor： KIMOTO YUKITSUGU , TOYODA YASUYUKI , HIRATA TOSHIAKI
Abstract: PURPOSE: To ensure rectilinearity in pulling out a mandrel when the mandrel is to be pulled out from a molded FRP cylindrical body and reduce lateral load to be exerted on a cylinder device. CONSTITUTION: In a method for manufacturing an FRP cylindrical body and a device therefor, when a mandrel 2 is to be pulled out from the FRP cylindrical body after the FRP cylindrical body is molded on the mandrel 2, the mandrel 2 which is being pulled out is supported by a support means 13 from a lower side.
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公开(公告)号：JPH05156509A
公开(公告)日：1993-06-22
申请号：JP32058091
申请日：1991-12-04
Applicant: TORAY INDUSTRIES
Inventor： SARUYAMA HIDEO , HIRATA TOSHIAKI , OHARA HARUO , OKUDA AKIRA , YAMAZAKI JUN
Abstract: PURPOSE:To improve both the permeation of a bath liquid into the interior of a yarn bundle and the washing efficiency, prevent single filaments from bonding and stabilize the process, etc., by jetting a bath liquid at a specific speed on yarn in the bath in carrying out treatment of the yarn in the bath such as washing with water or drawing. CONSTITUTION:Yarn is treated in a bath. In the process, a bath liquid is jetted from a position separate from the yarn in the bath at >=1 to =6000 denier.
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公开(公告)号：JPH03185146A
公开(公告)日：1991-08-13
申请号：JP32337689
申请日：1989-12-12
Applicant: TORAY INDUSTRIES
Inventor： ARAKI KIYOSHI , HIRATA TOSHIAKI , MATSUBARA NOBUYUKI
Abstract: PURPOSE:To draw a large amount of tow in good productivity in a substantially zero state of end breakage and fluff by dividing acrylic fiber two through a yarn guide having specific surface roughness into specific thickness, drawing in a liquid bath and redoubling the divided tow. CONSTITUTION:Acrylic fiber two is divided through a yarn guide having
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公开(公告)号：JP2002088640A
公开(公告)日：2002-03-27
申请号：JP2000277702
申请日：2000-09-13
Applicant: TORAY INDUSTRIES
Inventor： HONMA KIYOSHI , NISHIMURA AKIRA , HIRATA TOSHIAKI
Abstract: PROBLEM TO BE SOLVED: To provide an air jet nozzle which jets air in a uniform jetting pressure in the longitudinal direction of the wide air jet nozzle, and to provide a method for enlarging the yarn width of a sheet, by which the thin sheet where the yarn widths of reinforcing fiber bundles are enlarging using the nozzle can be obtained. SOLUTION: This air jet nozzle comprising a nozzle plate in which a plurality of air-jetting holes are arranged at an equal pitch in one row, and nozzle cases, is characterized by extending an air-supplying pipe in the nozzle cases along the row of the arranged air-jetting holes, disposing a plurality of air-discharging holes in the air-supplying pipe in a row, and directing the air-discharging holes in the direction opposite to the nozzle plate side. The method for enlarging the yarn width of the sheet is characterized by jetting high pressure air on the surface of the sheet comprising reinforcing fiber yarns by the use of the air jet nozzle to enlarge the yarn width of the reinforcing fiber yarns of the sheet.
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公开(公告)号：JPH10237756A
公开(公告)日：1998-09-08
申请号：JP3930297
申请日：1997-02-24
Applicant: TORAY INDUSTRIES
Inventor： WASHIYAMA MASAYOSHI , HIRATA TOSHIAKI , NOJIRI HIRONOBU
Abstract: PROBLEM TO BE SOLVED: To provide both a yarn dryer continuously operable for a long period and advantageous to running cost in a drying step for a yarn and a method for drying. SOLUTION: This yarn dryer is equipped with a hot air feed port for feeding hot air and a hot air discharge port for discharging the hot air in a box-shaped dryer having at least two openings for passing a yarn therethrough. The method for drying the yarn comprises continuously feeding the yarn and drying the yarn while feeding the fresh hot air from the hot air feed port and discharging the hot air from the hot air discharge port by using the yarn dryer.
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Patent Agency Ranking
公开(公告)号：JPH08108489A
公开(公告)日：1996-04-30
申请号：JP27061194
申请日：1994-10-07
Applicant: TORAY INDUSTRIES
Inventor： KIMOTO YUKITSUGU , TOYODA YASUYUKI , HIRATA TOSHIAKI
Abstract: PURPOSE: To always ensure smooth rotating state of a mandrel by providing a connecting section with an outer rotation driving source of a mandrel rotating mechanism at a grooved guide wheel side of a dolly. CONSTITUTION: One wheel 13 out of two wheels of a dolly 1 is V-shaped and engaged with a cone-shaped guide rail 15. Therefore, also when the dolly 1 expands with heat in a curing furnace 4, a flat wheel 14 as the other wheel slides on a flat rail 16, so that the thermal expansion quantity is absorbed and the position of the V-shaped wheel 13 is controlled to an original position by the guide rail 15. At the side of the V-shaped wheel 13, a coupling 11a with an outer rotation driving source 12 of a mandrel rotating mechanism of the dolly 1 is positioned, so that the position of the coupling 11a does not change substantially. As a result, also when the mandrel is to be heated in the curing furnace 4, it is rotated smoothly.
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公开(公告)号：JPH0770862A
公开(公告)日：1995-03-14
申请号：JP21395193
申请日：1993-08-30
Applicant: TORAY INDUSTRIES
Inventor： YAMAZAKI JUN , SHIRAKATA MORIAKI , HIRATA TOSHIAKI
Abstract: PURPOSE:To provide a method capable of stably drawing yarn under high speed without causing disturbance of yarn due to steam. CONSTITUTION:In a drawing apparatus provided with a steam-blowing port 4 in a drawing machine having a seal member having a yarn-through port at both ends, this drawing apparatus by steam is characterized in that a yarn squeezing part 3 is provided immediately before contacting the steam with the yarn and the direction of steam blowing port to the travelling direction of the yarn is perpendicular. In a method for drawing the yarn by blowing steam while sealing both ends of the yarn, this drawing method of the yarn by steam is characterized in that the yarn is drawn in a state where steam comes in contact with yarn perpendicularly to the traveling direction of the yarn while squeezing the yarn immediately before contacting steam with the yarn.
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公开(公告)号：JPH05140815A
公开(公告)日：1993-06-08
申请号：JP30778791
申请日：1991-11-22
Applicant: TORAY INDUSTRIES
Inventor： HIRATA TOSHIAKI , YAMAZAKI JUN , KOBAYASHI MAKOTO , OKUDA AKIRA , SARUYAMA HIDEO
Abstract: PURPOSE:To obtain acrylic yarn capable of producing high-quality carbon fiber in high productivity by spinning a solution of acrylonitrile-based polymer and thereafter drawing the undrawn yarn having a specific yarn density index in a bath to obtain thick yarn or high-density yarn similarly and stably while vibrating the yarn under a specific condition. CONSTITUTION:An acrylonitrile-based polymer (e.g. copolymer of 99.5mol% acrylonitrile and 0.5mol% itaconic acid) is dissolved in dimethyl sulfoxide to give a spinning dope, which is spun from a spinneret into a coagulating bath comprising a dimethyl sulfoxide and water to give coagulated yarn 3. The coagulated yarn 3 is washed with hot water to give yarn having a yarn density index M shown by the formula M = (substantial total denier [d] based on 1 yarn to be drawn in bath)/(yarn width [mm] based on 1 yarn) of >=2,000, which is introduced to a drawing bath 1 charged with a drawing solution 2, vibrated by a guide bar 6 connected to an oscillator 7 at 1-1,000Hz frequency and 0.1-50nm vibration amplitude and drawn to give the objective yarn such as raw material for carbon fiber.
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公开(公告)号：JPS60134863A
公开(公告)日：1985-07-18
申请号：JP23633783
申请日：1983-12-16
Applicant: TORAY INDUSTRIES
Inventor： HIRATA TOSHIAKI , TAKAGUCHI NORIYUKI , TANAKA KENZOU
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公开(公告)号：JPH05195306A
公开(公告)日：1993-08-03
申请号：JP652892
申请日：1992-01-17
Applicant: TORAY INDUSTRIES
Inventor： OHARA HARUO , YAMAZAKI JUN , HIRATA TOSHIAKI , OKUDA AKIRA , SARUYAMA HIDEO
IPC: D01D5/06
Abstract: PURPOSE:To make yarn free from bonding between single yarns and to obtain raw material yarn for high-quality carbon yarn by pressing down wet traveling yarn by a curved guide of specific shape in water and controlling width of yarn. CONSTITUTION:In treating wet traveling yarn in water, the yarn being >=400 yarn density index obtained as a ratio D/W wherein D is substantially total fineness per yarn which is prepared by wet or dry spinning and W is yarn width in the bath and being constituted by >=4,000 single yarns, the width of the yarn is controlled by pressing down the yarn by a carved guide having
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