公开(公告)号：US11491685B2

公开(公告)日：2022-11-08

申请号：US17266413

申请日：2019-08-20

Applicant: Toray Industries, Inc.

Inventor： Takashi Ochi ,  Yoshikazu Kono ,  So Nishino ,  Junichi Aoki ,  Kiyoshi Minoura ,  Tamotsu Suzuki

IPC: B29B11/16 ,  B29K63/00 ,  B29K307/04

Abstract: A method is described for producing a prepreg formed by applying a matrix resin to a reinforcing fiber sheet, wherein the method can effect continuous running without clogging due to generated fuzz even at a high running speed and effect efficient impregnation of the reinforcing fiber sheet with a matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to obtain a matrix resin-impregnated reinforcing fiber sheet in which the matrix resin is applied to the reinforcing fiber sheet and at least heating the matrix resin-impregnated reinforcing fiber sheet, wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other, wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet.

公开(公告)号：US20220176652A1

公开(公告)日：2022-06-09

申请号：US17598039

申请日：2020-03-26

Applicant: Toray Industries, Inc.

Inventor： Yasuhiro Sato ,  Tamotsu Suzuki ,  Kentaro Nagasaki

IPC: B29C70/38 ,  B29C70/54

Abstract: A fiber placement device includes an accumulation portion that stores and discharges a reinforcing fiber bundle including: a movable roller guided by a guide mechanism able to be moved in a constant movable range; a cylinder; a piston arranged within the cylinder; a coupling member coupling the movable roller and the piston; and an adjustment portion adjusting a force applied to the piston within the cylinder by discharging fluid from a space with the cylinder sealed on a side opposite the coupling member with respect to the piston within the cylinder or supplying the fluid into the space, the fluid is discharged from the space within the cylinder to apply a force to the piston to move the piston, a force is also applied to the movable roller through the coupling member to move the movable roller and thus a tension is applied to the reinforcing fiber bundle.

公开(公告)号：US20190161890A1

公开(公告)日：2019-05-30

申请号：US16309391

申请日：2017-06-01

Applicant: Toray Industries, Inc.

Inventor： Tetsuya Motohashi ,  Takafumi Hashimoto ,  Katsuhiro Miyoshi ,  Yoshihiro Kawahara ,  Tamotsu Suzuki ,  Chiasa Sato

IPC: D02J1/18 ,  B29B15/12 ,  B65H51/005 ,  B29C70/18

Abstract: A partially separated fiber bundle includes separation-processed sections and not-separation-processed sections that are alternately formed along the lengthwise direction of a fiber bundle that includes a plurality of single fibers, wherein the separation-processed sections include a plurality of separated bundles. The content of the not-separation-processed sections is 3% or more and 50% or less of the partially separated fiber bundle.

公开(公告)号：US20190084186A1

公开(公告)日：2019-03-21

申请号：US16084373

申请日：2017-02-23

Applicant: Toray Industries, Inc.

Inventor： Tetsuya Motohashi ,  Takafumi Hashimoto ,  Katsuhiro Miyoshi ,  Tamotsu Suzuki ,  Yasumoto Noguchi

IPC: B29B11/16 ,  B29C70/12

Abstract: A fiber-reinforced resin molding material containing at least bundled aggregates [A] of discontinuous reinforcing fibers and a matrix resin [M], wherein each of the bundled aggregates [A] is obtained by cutting a partially-separated fiber bundle, prepared by forming separation treatment sections separated into a plurality of bundles and non-separation treatment sections alternately along a lengthwise direction of a fiber bundle including a plurality of single fibers, at an angle θ (0°

公开(公告)号：US20170291377A1

公开(公告)日：2017-10-12

申请号：US15513573

申请日：2015-09-24

Applicant: Toray Industries, Inc.

Inventor： Haruhiko Tsuji ,  Tamotsu Suzuki ,  Yasumoto Noguchi ,  Yasuhiro Sato

IPC: B29C70/54 ,  B32B37/00

CPC classification number: B29C70/545 ,  B29C70/382 ,  B29C2793/0027 ,  B32B37/0046

Abstract: A reinforcing fiber sheet manufacturing apparatus configured to place a reinforcing fiber bundle on a table includes a fiber bundle supply mechanism configured to feed the reinforcing fiber bundle and equipped with a fiber bundle pressing portion that is configured to press the reinforcing fiber bundle against the table; and a cutting blade located independently of the fiber bundle supply mechanism and configured to cut the reinforcing fiber bundle that is pressed by the fiber bundle pressing portion.

公开(公告)号：US20140186575A1

公开(公告)日：2014-07-03

申请号：US14198686

申请日：2014-03-06

Applicant: Toray Industries, Inc.

Inventor： Tamotsu Suzuki ,  Tatsuya Hanawa

IPC: B29C53/02 ,  B32B5/26

CPC classification number: B29C53/02 ,  B29B11/16 ,  B29C70/44 ,  B29C70/46 ,  B29C70/543 ,  B29D99/0003 ,  B32B5/26 ,  D04H3/04 ,  D04H3/115 ,  Y10T428/24124

Abstract: A process for producing a reinforcing-fiber strip substrate having a circular-arc part includes contacting one surface of a strip-shaped, unidirectional reinforcing-fiber substrate formed by arranging a plurality of reinforcing-fiber strands in one direction in parallel with each other with a flexible member; deforming the unidirectional reinforcing-fiber substrate into a circular-arc shape by deforming at least a part of the flexible member into a circular-arc shape in a direction extending along its contact surface with the unidirectional reinforcing-fiber substrate; and thereafter, separating the flexible member from the unidirectional reinforcing-fiber substrate having been deformed.

Abstract translation: 一种具有圆弧部分的增强纤维带状基材的制造方法，其特征在于，将通过将多根强化纤维丝束在一个方向上彼此平行地配置而形成的带状单向增强纤维基材的一个表面接触， 灵活的会员; 通过使柔性构件的至少一部分沿着与单向增强纤维基板的接触表面延伸的方向变形为圆弧形，使单向增强纤维基板变形为圆弧形状; 然后将柔性构件与已经变形的单向增强纤维基材分离。

公开(公告)号：US11492731B2

公开(公告)日：2022-11-08

申请号：US17130976

申请日：2020-12-22

Applicant: Toray Industries, Inc.

Inventor： Tetsuya Motohashi ,  Takafumi Hashimoto ,  Katsuhiro Miyoshi ,  Yoshihiro Kawahara ,  Tamotsu Suzuki ,  Chiasa Sato

IPC: D02J1/18 ,  B65H51/005 ,  D01D11/02 ,  B29B15/12 ,  D04H1/732 ,  B29C70/18 ,  B29K307/04

Abstract: A method of producing a partially separated fiber bundle wherein, while a fiber bundle includes a plurality of single fibers travels along a lengthwise direction of the fiber bundle, a separator provided with a plurality of projected parts is penetrated into the fiber bundle to create a separation-processed part, and entangled parts, where the single fibers are interlaced, are formed at contact parts with the projected parts in at least one separation-processed part, thereafter the separator is removed from the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, the separator is penetrated again into the fiber bundle, characterized in that a separation processing time t1 during being penetrated with the separator and a time t2 from being removed with the separator to being penetrated again into the fiber bundle satisfy Equation (1): 0.03≤t2/(t1+t2)≤0.5.

公开(公告)号：US20210291405A1

公开(公告)日：2021-09-23

申请号：US17266413

申请日：2019-08-20

Applicant: Toray Industries, Inc.

Inventor： Takashi Ochi ,  Yoshikazu Kono ,  So Nishino ,  Junichi Aoki ,  Kiyoshi Minoura ,  Tamotsu Suzuki

IPC: B29B11/16

Abstract: A method is described for producing a prepreg formed by applying a matrix resin to a reinforcing fiber sheet, wherein the method can effect continuous running without clogging due to generated fuzz even at a high running speed and effect efficient impregnation of the reinforcing fiber sheet with a matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to obtain a matrix resin-impregnated reinforcing fiber sheet in which the matrix resin is applied to the reinforcing fiber sheet and at least heating the matrix resin-impregnated reinforcing fiber sheet, wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other, wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet.

公开(公告)号：US20210108342A1

公开(公告)日：2021-04-15

申请号：US17130976

申请日：2020-12-22

Applicant: Toray Industries, Inc.

Inventor： Tetsuya Motohashi ,  Takafumi Hashimoto ,  Katsuhiro Miyoshi ,  Yoshihiro Kawahara ,  Tamotsu Suzuki ,  Chiasa Sato

IPC: D02J1/18 ,  B65H51/005 ,  B29B15/12 ,  B29C70/18

Abstract: A method of producing a partially separated fiber bundle wherein, while a fiber bundle includes a plurality of single fibers travels along a lengthwise direction of the fiber bundle, a separator provided with a plurality of projected parts is penetrated into the fiber bundle to create a separation-processed part, and entangled parts, where the single fibers are interlaced, are formed at contact parts with the projected parts in at least one separation-processed part, thereafter the separator is removed from the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, the separator is penetrated again into the fiber bundle, characterized in that a separation processing time t1 during being penetrated with the separator and a time t2 from being removed with the separator to being penetrated again into the fiber bundle satisfy Equation (1): 0.03≤t2/(t1+t2)≤0.5.

公开(公告)号：US10676311B2

公开(公告)日：2020-06-09

申请号：US15539459

申请日：2015-12-09

Applicant: Toray Industries, Inc.

Inventor： Yoshihiro Kawahara ,  Tamotsu Suzuki ,  Katsuhiro Miyoshi

IPC: B65H51/005 ,  D01D11/02 ,  D02J1/18 ,  D01D5/42

Abstract: A method of manufacturing and a device for manufacturing a partial split-fiber fiber bundle and a partial split-fiber fiber bundle obtained are characterized by piercing a fiber splitting means provided with a plurality of protruding parts into a fiber bundle formed from a plurality of single fibers while making the fiber bundle travel along the longitudinal direction thereof and creating a split-fiber processed part, forming entangled parts where single fibers are interlaced at contact parts with the protruding parts in at least one split-fiber processed part, thereafter pulling the fiber splitting means out of the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, once again piercing the fiber splitting means into the fiber bundle.