WO2013094515A1 - 自動車用繊維強化樹脂部材および自動車用繊維強化樹脂部材の製造方法 - Google Patents
自動車用繊維強化樹脂部材および自動車用繊維強化樹脂部材の製造方法 Download PDFInfo
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- WO2013094515A1 WO2013094515A1 PCT/JP2012/082352 JP2012082352W WO2013094515A1 WO 2013094515 A1 WO2013094515 A1 WO 2013094515A1 JP 2012082352 W JP2012082352 W JP 2012082352W WO 2013094515 A1 WO2013094515 A1 WO 2013094515A1
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- resin member
- reinforced resin
- fiber
- main body
- fiber reinforced
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/081—Combinations of fibres of continuous or substantial length and short fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
- B60R2019/1853—Structural beams therefor, e.g. shock-absorbing made of plastic material of reinforced plastic material
Definitions
- the present invention is a fiber reinforced resin for an automobile, which integrally includes a body having a bottom wall and a pair of side walls and opening in one direction, and a rib connecting the bottom wall and the pair of side walls.
- the present invention relates to a member and a method of manufacturing a fiber reinforced resin member for a motor vehicle.
- Patent Document 1 It is known from Patent Document 1 below that a rib is formed on the rear surface of a bumper face mounted so as to cover a bumper beam (bumper reinforcement) made of a fiber reinforced resin.
- a composite in which a rib of a fiber reinforced resin containing discontinuous fibers randomly disposed on a wall of a fiber reinforced resin containing a woven fabric of continuous fibers is known from Patent Document 2 below.
- Patent Document 3 discloses that a stampable sheet obtained by blending discontinuous inorganic fibers with powder of thermoplastic synthetic resin is press-formed with a mold to obtain a fiber-reinforced resin product of a desired shape.
- Patent Document 2 it is necessary to form a rib of fiber reinforced resin containing discontinuous fibers randomly disposed after forming a wall of fiber reinforced resin containing a woven fabric of continuous fibers.
- the number of manufacturing processes increases and causes cost increase.
- the present invention has been made in view of the above-described circumstances, and it is an object of the present invention to increase the torsional rigidity of a U-shaped fiber reinforced resin member for automobile and to simplify its manufacturing process.
- a U-shaped cross-section main body having a bottom wall and a pair of side walls and opening in one direction, and a rib connecting the bottom wall and the pair of side walls
- a fiber-reinforced resin member for an automobile wherein the body reinforced with continuous fibers and the rib reinforced with discontinuous fibers are simultaneously press-formed with the fibers.
- a resin member is proposed.
- the fiber-reinforced resin member for an automobile according to the second feature is that the continuous fibers are oriented in two directions orthogonal to each other and plain-woven. Suggested.
- the third feature of the invention is that the orientation direction of the continuous fiber is along the principal stress direction of the main body and a direction orthogonal thereto.
- a fiber reinforced resin member is proposed.
- the rib is characterized by having a notch at an intermediate portion in a direction connecting the pair of side walls.
- a fiber reinforced resin member for automobiles is proposed.
- the rib is in the form of a lattice, and a boss having a positioning hole at the intersection of the lattice is integrally formed.
- the length of the discontinuous fiber may be 0.9 mm to 4.4 mm.
- a fiber reinforced resin member is proposed.
- a seventh feature for an automobile is that an end bracket reinforced with discontinuous fibers is provided at both ends of the main body.
- a fiber reinforced resin member is proposed.
- the distance between the pair of side walls is such that the longitudinal central portion of the main body portion is larger than both end portions.
- a fiber-reinforced resin member for an automobile according to an eighth feature is proposed.
- a molding surface of a female die for molding an outer surface of the main body is provided.
- a step of setting a first prepreg containing the continuous fiber, a step of setting a second prepreg containing the discontinuous fiber on the first prepreg, a molding surface for molding an inner surface of the main body, and the rib is characterized by including a step of pressing the first prepreg and the second prepreg with a male mold having a groove to be molded and the female mold to form the fiber reinforced resin member for an automobile.
- a method of manufacturing a fiber reinforced resin member for use is proposed.
- a fiber-reinforced resin member for a motor vehicle has a body portion having a U-shaped cross section having a bottom wall and a pair of side walls and opening in one direction, It integrally comprises a rib to be connected. Since the continuous fiber-reinforced main body and the discontinuous fiber-reinforced rib are simultaneously press-formed, the rib-shaped main body with low rigidity against torsional deformation can be reinforced by ribs to prevent the cross-sectional deformation.
- the continuous fibers of the main body portion are oriented in two directions orthogonal to each other and plain-woven, the rigidity of the fiber reinforced resin member for automobiles of U-shaped cross section is enhanced The opening of the main body can be prevented.
- the orientation direction of the continuous fibers of the main body portion is along the main stress direction, the bending rigidity of the main body portion can be enhanced.
- the main part of the U-shaped cross section is deformed to open, stress is generated in the direction orthogonal to the main stress direction, but since the continuous fiber is also oriented in that direction, Stiffness can also be enhanced at the same time.
- the rib since the rib has a notch at an intermediate portion in the direction connecting the pair of side walls, the weight of the main body can be reduced.
- the bosses having the positioning holes are provided at the intersections of the grid-like ribs, the positioning operation when connecting the bumper beam and other parts becomes easy.
- the positioning hole is post-processed by a drill, there is a risk that the resin between the fibers may peel off to reduce the strength, but the boss having the positioning hole may be integrally formed with the fiber reinforced resin member for automobiles. It can be prevented.
- the length of the discontinuous fiber of the rib is 0.9 mm to 4.4 mm, when the discontinuous fiber of the length is to be injected together with the resin, the nozzle is clogged However, pressing it can make it possible to use discontinuous fibers of sufficient length to increase the strength of the rib.
- the end brackets reinforced with discontinuous fibers are provided at both ends of the main body, it is easy to connect the both ends of the main body to other members.
- the eighth feature of the present invention since the distance between the pair of side walls of the main body is longer at the longitudinal center of the main body than at both ends, the other members are separated from the opening side of the main body. In the event of a collision, the probability that the other member engages with the main body can be increased to enhance the shock absorbing effect.
- a first prepreg containing continuous fibers is set on a molding surface of a female mold for molding the outer surface of the main body, and a second prepreg containing discontinuous fibers on the first prepreg.
- the first prepreg and the second prepreg are pressed with a molding surface for molding the inner surface of the main body and a groove for molding the rib, and the fiber reinforced resin member for motor vehicle is molded. Therefore, it becomes possible to mold the main body and the rib at one time, and the manufacturing process can be simplified.
- FIG. 1 is a plan view of a front portion of a vehicle body.
- First Embodiment FIG. 2 is a view in the direction of arrows in FIG.
- First Embodiment FIG. 3 is a sectional view taken along line 3 (A) -3 (A), line 3 (B) -3 (B) and line 3 (C) -3 (C) in FIG.
- First Embodiment FIG. 4 is an enlarged view in the direction of arrows 4 (A) and 4 (B) in FIG.
- First Embodiment FIG. 5 is a cross-sectional view taken along line 5-5 of FIG.
- First Embodiment FIG. 6 is an explanatory view of a forming process of the bumper beam.
- First Embodiment FIG. 7 is an operation explanatory view at the time of the input of the collision load to the bumper beam.
- the cabin 11 made of fiber reinforced resin integrally includes a floor panel 12, a pair of left and right side sills 13, 13, a center tunnel 14, a dashboard lower 15, and the like.
- a pair of left and right metal front side frames 16, 16 extend forward from the front end of the cabin 11, and a pair of left and right fiber reinforced resin impact absorbing members 17, 17 are connected to the front end.
- Both end portions in the vehicle width direction of the bumper beam 18 made of fiber reinforced resin are connected to the inner surfaces of the front end portions of the left and right impact absorbing members 17, 17, and a pair of left and right wheel house lower members made of fiber reinforced resin are connected to the outer surface
- the front ends 19 and 19 are connected.
- a square frame shaped front bulkhead 20 made of fiber reinforced resin is provided between the shock absorbing members 17 on the left and right sides.
- the body portion 21 of the bumper beam 18 is a member having a U-shaped cross section having a bottom wall 21a and a pair of side walls 21b and 21c and the front face is open, and one transverse rib 22 extending in the vehicle width direction on its inner surface. And a plurality of longitudinal ribs 23 extending in the vertical direction orthogonal to the transverse ribs 22 are formed in a lattice shape.
- the trailing edge of the transverse rib 22 is connected to the bottom wall 21a, and the trailing and upper edges of the longitudinal ribs 23 are connected to the bottom wall 21a and the side walls 21b and 21c.
- the front edge of each longitudinal rib 23 is formed with a U-shaped notch 23a.
- the distance between the upper and lower side walls 21b and 21b of the main body 21 changes in the vehicle width direction and is H1 at the center in the vehicle width direction and H2 smaller than H1 at both ends in the vehicle width direction (see FIG. 3) .
- a flange 21d protrudes upward from the upper edge of the upper side wall 21b, and a flange 21e protrudes downward from the lower edge of the lower side wall 21c.
- Bosses 24 and 24 having positioning holes 24 a and 24 a are formed at positions where the two longitudinal ribs 23 and 23 located at the left and right ends cross the lateral ribs 22.
- a pair of left and right plate-shaped end brackets 25 made of fiber reinforced resin are provided at both ends in the vehicle width direction of the main body 21.
- the mold 26 for press molding the bumper beam 18 has a female mold 27 having a concave cavity 27a for molding the outer surface of the main body 21, and the inner surface of the main body 21.
- the core 28a is formed with a lateral groove 28b for forming the lateral rib 22 and a longitudinal groove 28c for forming the longitudinal rib 23.
- the core 28a has a convex core 28a.
- the first prepreg 29 of continuous fibers and the second prepreg 30 of discontinuous fibers are arranged in a preheated state on the upper part of the cavity 27 a of the female die 27.
- the length of the discontinuous fiber of the second prepreg 30 is set to 0.9 mm to 4.4 mm.
- the prepreg is a woven fabric of continuous fibers such as carbon fiber, glass fiber or aramid fiber, UD (a sheet in which continuous fibers are aligned in one direction), or a mat of discontinuous fibers as a reinforcing material, and a semi-cured heat It is impregnated with a curable resin (epoxy resin, polyester resin, etc.) or a thermoplastic resin (nylon 6, polypropylene, etc.) and has the flexibility to adapt to the shape of the mold although there is no surface tackiness. . In the case of a thermosetting resin, when it is heated to, for example, about 130 ° C.
- thermosetting resin is cured to obtain a fiber reinforced resin product .
- a thermoplastic resin a plurality of preheated prepregs are inserted in a laminated state in a mold, pressure-molded, and then cooled to obtain a fiber reinforced resin product.
- the male die 28 when the male die 28 is lowered with respect to the female die 27, the first prepreg 29 is pressed by the cavity 27a of the female die 27 and the core 28a of the male die 28, The body portion 21 of the bumper beam 18 having a U-shaped cross section is formed.
- the second prepreg 30 having a discontinuous fiber as a reinforcing material is easily deformable, the second prepreg 30 sandwiched by the first prepreg 29 and the core 28 a of the male die 28 is a lateral groove 28 b of the core 28 a. And flow into the longitudinal grooves 28c, and simultaneously form the transverse rib 22, the longitudinal rib 23, and the end brackets 25, 25 of the bumper beam 18. Further, a part of the second prepreg 30 is laminated in a thin film along the inner surface of the main body 21.
- the main body 21 of the bumper beam 18 that is, the bottom wall 21a, upper and lower side walls 21b and 21c, and The upper and lower flanges 21d and 21e are reinforced by a plain weave of continuous fibers 31a, 31b,... (See FIG. 4A) of carbon oriented in two orthogonal directions.
- the orientation direction of one of the continuous fibers 31a is the vehicle width direction (that is, the main stress direction of the bumper beam 18), and the orientation direction of the other continuous fibers 31b is the direction orthogonal to the vehicle width direction.
- Thin layers covering the inner surface of the transverse rib 22 of the bumper beam 18, the longitudinal rib 23, the bosses 24, 24, the end brackets 25, 25 and the main body 21 are randomly intertwined with the discontinuous fibers 32 of carbon. It reinforces by (refer to Drawing 4 (B)).
- the left and right impact absorbing members 17 and 17 made of fiber reinforced resin have an S-shaped cross section in a front view, and the left and right end brackets 25 and 25 have left and right impact absorbing members 17. , 17 are bonded or welded to the inner surface in the vehicle width direction, and are further joined by rivets 33.
- the fiber reinforced resin of the main body portion 21 of the bumper beam 18 having a simple U-shaped cross section is reinforced with high strength plain weave continuous fibers, and reinforced with plain weave continuous fibers to have a complicated shape.
- the fiber reinforced resin of the horizontal ribs 22, the longitudinal ribs 23 ..., the bosses 24, 24 and the end brackets 25, 25 which are difficult to be reinforced is reinforced by the discontinuous fibers 32. Both strength and formability can be achieved.
- the first prepreg 29 containing continuous fibers and the second prepreg 30 containing discontinuous fibers are placed in the same mold 26 and the bumper beam 18 is formed in one step, they are separately formed and bonded The manufacturing cost can be reduced as compared to the case of integration by welding.
- the upper and lower flanges 21d and 21e deform so as to open, so tensile stress is also applied in the direction orthogonal to the main stress direction. And compressive stress, but by arranging the other continuous fibers 31b in that direction, the strength against the opening of the bumper beam 18 can be increased.
- the bumper beam 18 collides in the front, high strength can be obtained by arranging the continuous fibers 31a, 31b, ... in the vehicle width direction and the direction orthogonal thereto.
- the main body portion 21 is torsionally deformed, and the continuous fibers 31a, 31b,. It is difficult to secure rigidity against torsional deformation only by arranging and reinforcing in the direction.
- the bumper beam 18 is closed by connecting the bottom 21a and the upper and lower side walls 21b and 21c of the main body 21 of the bumper beam 18 with the grid-like horizontal ribs 22 and vertical ribs 23. Stiffness against torsional deformation can be sufficiently enhanced without the costly reinforcement that would otherwise occur or add continuous fibers inclined at 45 °.
- the length of the discontinuous fiber of the transverse rib 22 and the longitudinal rib 23 is 0.9 mm to 4.4 mm, if it is attempted to inject the discontinuous fiber of that length together with the resin, the nozzle may be clogged.
- by press-forming it it is possible to use discontinuous fibers of sufficient length to increase the strength of the transverse ribs 22 and the longitudinal ribs 23.
- the bosses 24, 24 having the positioning holes 24a, 24a are provided at the intersections of the grid-like horizontal ribs 22 and the longitudinal ribs 23, the positioning work when connecting the bumper beam 18 with other parts becomes easy. . Further, since the end brackets 25 and 25 reinforced with the discontinuous fiber 32 are provided at both ends of the main body portion 21, it is easy to couple the both ends of the main body portion 21 to the wheel house lower members 19 and 19. Also, if the positioning holes 24a, 24a are post-processed by a drill, there is a risk that the resin between the fibers may peel off and the strength may be reduced. However, the bosses 24, 24 having the positioning holes 24a, 24a are integrally formed on the bumper beam 18 It is possible to prevent the reduction of the strength.
- the distance between the upper and lower side walls 21b and 21c of the main body 21 is larger at the longitudinal central portion of the main body 21 than at both ends, when another member collides from the opening side of the main body 21, The probability that another member engages with the main body 21 can be increased to enhance the shock absorbing effect.
- the longitudinal ribs 23 have notches in the middle in the direction connecting the upper and lower side walls 21b and 21c, the weight of the main body 21 can be reduced.
- the fiber reinforced resin member for automobiles of the present invention is not limited to the bumper beam 18 of the embodiment, and may be a door beam or a reinforcing member.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
21a 底壁
21b 側壁
21c 側壁
22 横リブ(リブ)
23 縦リブ(リブ)
23a 切欠き
24 ボス
24a 位置決め孔
25 端部ブラケット
27 雌型
28 雄型
29 第1プリプレグ
30 第2プリプレグ
31a 連続繊維
31b 連続繊維
32 不連続繊維
Claims (9)
- 底壁(21a)および一対の側壁(21b,21c)を有して一方向に開口するコ字状断面の本体部(21)と、前記底壁(21a)および前記一対の側壁(21b,21c)を接続するリブ(22,23)とを一体に備える自動車用繊維強化樹脂部材であって、
連続繊維(31a,31b)で補強した前記本体部(21)と不連続繊維(32)で補強した前記リブ(22,23)とを同時にプレス成形したことを特徴とする自動車用繊維強化樹脂部材。 - 前記連続繊維(31a,31b)は、相互に直交する二つの方向に配向されて平織されることを特徴とする、請求項1に記載の自動車用繊維強化樹脂部材。
- 前記連続繊維(31a,31b)の配向方向は、前記本体部(21)の主応力方向と、それに直交する方向とに沿うことを特徴とする、請求項2に記載の自動車用繊維強化樹脂部材。
- 前記リブ(22,23)は、前記一対の側壁(21b,21c)を結ぶ方向の中間部に切欠き(23a)を有することを特徴とする、請求項1~請求項3の何れか1項に記載の自動車用繊維強化樹脂部材。
- 前記リブ(22,23)は格子状であり、格子の交点に位置決め孔(24a)を有するボス(24)が一体に成形されることを特徴とする、請求項1~請求項4の何れか1項に記載の自動車用繊維強化樹脂部材。
- 前記不連続繊維(32)の長さは0.9mm~4.4mmであることを特徴とする、請求項1~請求項5の何れか1項に記載の自動車用繊維強化樹脂部材。
- 前記本体部(21)の両端に不連続繊維(32)で補強した端部ブラケット(25)を備えることを特徴とする、請求項1~請求項6の何れか1項に記載の自動車用繊維強化樹脂部材。
- 前記一対の側壁間(21b,21c)の距離は、前記本体部(21)の長手方向中央部の方が両端部よりも大きいことを特徴とする、請求項1~請求項7の何れか1項に記載の自動車用繊維強化樹脂部材。
- 請求項1~請求項8の何れか1項に記載の自動車用繊維強化樹脂部材の製造方法であって、
前記本体部(21)の外表面を成形する雌型(27)の成形面に前記連続繊維(31a,31b)を含む第1プリプレグ(29)をセットする工程と、
前記第1プリプレグ(29)上に前記不連続繊維(32)を含む第2プリプレグ(30)をセットする工程と、
前記本体部(21)の内表面を成形する成形面および前記リブ(22,23)を成形する溝を有する雄型(28)と前記雌型(27)とで、前記第1プリプレグ(29)および前記第2プリプレグ(30)をプレスして前記自動車用繊維強化樹脂部材を成形する工程と、
を含むことを特徴とする自動車用繊維強化樹脂部材の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013550251A JP5734459B2 (ja) | 2011-12-20 | 2012-12-13 | 自動車用繊維強化樹脂部材 |
EP12858977.7A EP2796326B1 (en) | 2011-12-20 | 2012-12-13 | Automobile fiber-strengthening resin member and method for producing automobile fiber-strengthening resin member |
US14/366,429 US9205790B2 (en) | 2011-12-20 | 2012-12-13 | Automobile fiber-reinforced resin member and method for producing automobile fiber-reinforced resin member |
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Also Published As
Publication number | Publication date |
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EP2796326A1 (en) | 2014-10-29 |
JPWO2013094515A1 (ja) | 2015-04-27 |
US20150015006A1 (en) | 2015-01-15 |
US9205790B2 (en) | 2015-12-08 |
JP5734459B2 (ja) | 2015-06-17 |
EP2796326A4 (en) | 2015-07-22 |
EP2796326B1 (en) | 2017-12-13 |
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