WO2011122179A1 - Fiber-reinforced plastic molding, production method therefor, and elevator - Google Patents
Fiber-reinforced plastic molding, production method therefor, and elevator Download PDFInfo
- Publication number
- WO2011122179A1 WO2011122179A1 PCT/JP2011/053984 JP2011053984W WO2011122179A1 WO 2011122179 A1 WO2011122179 A1 WO 2011122179A1 JP 2011053984 W JP2011053984 W JP 2011053984W WO 2011122179 A1 WO2011122179 A1 WO 2011122179A1
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- WIPO (PCT)
- Prior art keywords
- fiber
- reinforced plastic
- hard closed
- closed cell
- cell body
- Prior art date
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- 229920002430 Fibre-reinforced plastic Polymers 0.000 title claims abstract description 125
- 239000011151 fibre-reinforced plastic Substances 0.000 title claims abstract description 118
- 238000010137 moulding (plastic) Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 210000005056 cell body Anatomy 0.000 claims description 78
- 210000004027 cell Anatomy 0.000 claims description 55
- 229920005989 resin Polymers 0.000 claims description 40
- 239000011347 resin Substances 0.000 claims description 40
- 239000012783 reinforcing fiber Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000002990 reinforced plastic Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 14
- 239000006261 foam material Substances 0.000 abstract 7
- 239000010408 film Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000011162 core material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229920001567 vinyl ester resin Polymers 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002577 polybenzoxazole Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
Definitions
- the present invention relates to a fiber reinforced plastic molded article having excellent sound insulation and sound absorbing properties, a manufacturing method thereof, and an elevator using the fiber reinforced plastic molded article for a car wall and a wind conditioned cover.
- Fiber Reinforced Plastics is attracting attention in various industrial fields as a lightweight and high-strength material.
- a sandwich structure in which FRP skin plates are arranged on both surfaces of a core material is known.
- a multi-porous material is often used from the viewpoint of securing light weight and the like.
- Multi-porous materials are classified into closed cells composed of closed cells and open cells composed of open cells.
- a closed cell body is excellent in heat insulation and sound insulation (for example, refer patent document 1).
- an open cell body is excellent in heat insulation and sound absorption (for example, refer patent document 2).
- Some closed cell bodies are hard and have high compressive strength.
- VaTM Vacuum assist Resin Transfer Molding
- the fiber placed in the mold is covered with a bag film
- the bag film is vacuumed
- a liquid resin is injected into the bag film
- the fiber is impregnated into the fiber and cured, and then molded.
- the mold is removed to obtain an FRP molded body.
- the method of manufacturing the FRP molded object which is a sandwich structure which combined the core material which consists of a closed cell body, and the skin material which consists of FRP using this VaRTM method is known (for example, refer patent document 3). ).
- a sound-absorbing and sound-insulating composite structure is known as a method effective for noise countermeasures.
- the sound-absorbing and sound-insulating composite structure is a combination of a sound-absorbing material and a sound-insulating material to prevent air-borne sound.
- the sound absorbing material prevents sound reflection by absorbing sound waves, prevents an increase in sound pressure level due to sound wave reflection on the sound source side, and the sound insulating material has no function of absorbing sound. By reflecting the noise, it has a function of blocking noise propagating in the air (see, for example, Patent Document 4).
- the sandwich structure in which the FRP skin plates are arranged on both surfaces of the core material made of hard closed cells has high compressive strength and excellent sound insulation, but has poor sound absorption.
- open cells having excellent sound absorption generally have a low compressive strength
- hard closed cells were used even when used as a sandwich structure in which FRP skin plates are arranged on both sides of a core material made of open cells. Compared to the sandwich structure, it cannot contribute to higher rigidity.
- the open cell body is impregnated with resin, and the lightness and sound absorption are deteriorated.
- An object of the present invention is to solve the above problems, and is a thin-walled, high-rigidity, fiber-reinforced plastic molded article excellent in sound absorption and sound insulation, a method for producing the same, and
- the present invention provides an elevator using the fiber-reinforced plastic molded body for a car wall and a wind-control cover.
- the fiber reinforced plastic molded body according to the present invention comprises an open cell body, a hard closed cell body covering the open cell body, and a fiber reinforced plastic provided on at least both surfaces of the hard closed cell body, The open cell body is exposed to the outside through an opening formed in the hard closed cell body and the fiber reinforced plastic.
- the method for producing a fiber-reinforced plastic molded body includes a hard closed cell covering step for covering the entire surface of the open cell body with the hard closed cell body, and a step for covering the hard closed cell body with a reinforcing fiber.
- the hard closed cell covering step includes a hard closed cell body including a hard closed cell block, a first flat plate portion, and a second flat plate portion. Drilling a hard closed cell block to form a plurality of holes and the support, inserting each divided part into a plurality of divided parts from the open cell, and open cell And covering both surfaces with the first flat plate portion and the second flat plate portion.
- the elevator according to the present invention has a car wall made of a fiber-reinforced plastic molded body.
- the elevator according to the present invention is made of a fiber reinforced plastic molded body, and has an air conditioning cover that is attached to the upper and lower parts of the car and rectifies the air flow when the car is running.
- the fiber-reinforced plastic molded body according to the present invention includes a surface where the open cell body is exposed and a surface where the open cell body is not exposed, and the surface where the open cell body is exposed is because the open cell body absorbs sound waves. High sound absorption characteristics can be obtained. On the other hand, since the fiber reinforced plastic and the hard closed cell reflect sound waves on the surface where the open cell body is not exposed, high sound insulation characteristics can be obtained. Moreover, since the fiber reinforced plastic is arrange
- the open cell body is covered with the hard closed cell body in the manufacturing process, the open cell body is not impregnated with the resin.
- the open cell body is not impregnated with resin, and the VaRTM method provides a lightweight, low-priced and sound-insulating FRP molded product at low cost. can do.
- the hard closed cell covering step includes a hard closed cell body including a hard closed cell block, a first flat plate portion, and a second flat plate portion. Drilling a hard closed cell block to form a plurality of holes and support portions; inserting each divided portion into a plurality of divided portions from the open cell body; and And having a step of covering both surfaces with the first flat plate portion and the second flat plate portion, a highly rigid fiber-reinforced plastic molded body can be easily manufactured.
- the car wall is made of a fiber reinforced plastic molded body, wind noise from the outside of the car is cut off, and sound is absorbed so that conversation in the car does not sound.
- the wind regulation cover is made of a fiber-reinforced plastic molded body, wind noise from outside the car is insulated.
- FIG. 1 is a cross-sectional view showing a fiber-reinforced plastic molded body 1 (hereinafter abbreviated as an FRP molded body) according to Embodiment 1 of the present invention.
- the FRP molded body 1 includes an open cell body 2, a hard closed cell body 3 covering the open cell body 2, and a fiber reinforced plastic (hereinafter referred to as “6”) provided on the entire surface (6 surfaces) of the hard closed cell body 3. (Abbreviated as FRP).
- the FRP 4 is impregnated and cured with a resin.
- a plurality of openings 5 arranged as shown in FIG. 3 are formed on the lower surface of the FRP molded body 1, and the open cell body 2 is electrically connected to the outside through the openings 5.
- the rigid closed cell body 3 is formed by forming the open cell body 2 into a quadrangular shape as shown in FIG. 5, the upper flat plate portion 3 a being the first flat portion, the lower flat plate portion 3 b being the second flat portion, and FIG. 4. It is comprised from the support part 3c divided into the division part 2a.
- FRP4 which is a skin material
- carbon fiber, glass fiber, Zylon fiber, Kepler fiber and the like are not particularly limited, but carbon fiber reinforced plastic capable of maximizing lightness and strength. Is preferred.
- the textile fabric which consists of a long fiber, for example, a unidirectional material, and a cloth material, are preferable.
- the hard closed cell body 3 hard foams such as phenol, polyurethane, and polyolefin can be used. Among these, flame retardant phenol foam is preferable.
- glass wool, urethane foam or the like having a high sound absorption coefficient can be used.
- a method for manufacturing the FRP molded body 1 having the above configuration will be described with reference to FIGS.
- a flat hard closed cell block having a flat plate shape is cut into four squares to form holes H, and a support portion 3c of the hard closed cell 3 is obtained.
- the support part 3c is mounted on the lower flat plate part 3b, and the divided part 2a of the open cell body 2 is inserted into the hole of the support part 3c.
- the upper flat plate portion 3a is placed on the support portion 3c (see FIG. 5).
- the lower flat plate portion 3b and the support portion 3c, and the support portion 3c and the upper flat plate portion 3a may not be bonded in advance.
- the lower flat plate portion 3b and the upper flat plate portion 3a are pressed inward at atmospheric pressure and brought into close contact with each other, and the resin 14 enters and adheres to the respective interfaces in the next step. At this time, the resin 14 does not reach the open cell body 2. However, when the area of each interface is large, in order to increase the rigidity as the sandwich structure, the lower flat plate portion 3b and the support portion 3c, and the support portion 3c and the upper flat plate portion 3a are preliminarily connected with the resin 14. It is better to adhere.
- the entire surface of the hard closed cell 3 is covered with FRP 4, and the peel ply 10 is a resin-permeable release material.
- a flow medium 11 as a permeation assisting material and a bagging film 12 that enables vacuum are sequentially covered.
- the inside of the bagging film 12 is depressurized by the operation of the vacuum pump 13.
- the resin 14 stored in the resin tank 15 is injected into the bagging film 12, and the FRP 4 is impregnated with the resin 14 (see FIG. 6).
- symbol 16 of FIG. 6 is a valve
- the FRP resin 14 is not particularly limited, but is preferably a thermosetting resin such as a vinyl ester resin, a polyester resin, an epoxy resin, a cyanate resin, a phenol resin, or a polyimide resin.
- a vinyl ester resin that can be cured at room temperature and have low viscosity and excellent impregnation properties are preferred from the viewpoint of moldability.
- a vinyl ester resin imparted with flame retardancy is preferable.
- the surface where the open cell body 2 is exposed to the outside in FIG. 2 is the inside, and the surface which is covered with the hard closed cell body 3 and the open cell body 2 is not exposed is the outside. Then, sound waves generated from the inside enter through the opening 5 and are absorbed by the open cell body 2. Therefore, the reflected sound can be reduced. In addition, sound waves generated from the outside are reflected by the FRP 4 and the hard closed cell 3. Therefore, it is possible to reduce the amount transmitted to the inside. That is, the FRP molded body 1 has excellent sound insulation on the outer surface and excellent sound absorption on the inner surface.
- the FRP molded body 1 out of the sound waves generated outside on the inside of the FRP molded body 1
- the amount of transmitted sound waves is small, and among the sound waves generated inside, the amount of sound waves reflected inside is also small, so the effect of noise countermeasures is great.
- the FRP molded body 1 has high rigidity in the compression direction.
- the open cell body 2 is covered with the hard closed cell body 3, the open cell body 2 is not impregnated with the resin. Therefore, even if a sandwich structure is manufactured using the VaRTM method, the open cell body 2 is not impregnated with resin, and the VaRTM method makes it possible to reduce the weight of the FRP molded body 1 excellent in sound absorption and sound insulation. Can be provided.
- the hard closed cell covering step includes forming a hard closed cell block out of the hard closed cell formed of the hard closed cell block, the upper flat plate portion 3a, and the lower flat plate portion 3b, so that a plurality of holes H are formed. And a step of forming the support portion 3c, a step of inserting each divided portion 2a divided into a plurality of portions from the open cell body 2 into each hole H, and an upper flat plate portion 3a and a lower side of both sides of the open cell body 2 And the step of covering with the flat plate portion 3b, the FRP molded body 1 having high rigidity can be easily manufactured.
- FIG. FIG. 9 is a plan sectional view showing an FRP molded body 1A according to Embodiment 2 of the present invention.
- the hard closed-cell body 3A has the open-cell body 2 partitioned into triangular divided portions 2a by the support portions 3Ac.
- Other configurations are the same as those of the first embodiment.
- the FRP molded body 1A according to this embodiment has higher rigidity than the FRP molded body 1 when the area of the hard closed cell 3A is the same as that of the hard closed cell 3 according to the first embodiment.
- Other functions and effects are the same as those of the FRP molded body 1 of the first embodiment.
- FIG. 10 is a cross-sectional view showing an FRP molded body 1B according to Embodiment 3 of the present invention.
- a thin metal film 20 made of aluminum is attached to the upper and lower surfaces of the FRP 4 using an adhesive 21. Yes.
- Other configurations are the same as those of the first embodiment.
- the metal thin film 20 is attached to the upper surface and the lower surface, so that rigidity and flame retardancy can be further enhanced as a sandwich structure as compared with the first embodiment.
- Other functions and effects are the same as those of the FRP molded body 1 of the first embodiment.
- FIG. 11 is a cross-sectional view showing an FRP molded body 1C according to Embodiment 4 of the present invention.
- the opening 5A has a trapezoidal shape in which the cross-sectional shape along the center line is expanded outward.
- Other configurations are the same as those of the first embodiment.
- the opening 5A has a trapezoidal shape, and has a larger area toward the outside as compared with the opening 5 of the first embodiment having a quadrangular cross section. Can absorb sound waves. Other functions and effects are the same as those of the FRP molded body 1 of the first embodiment.
- the opening 5 ⁇ / b> B may extend to the inside of the open cell body 2.
- the FRP molded object 1C in which the opening part 5B was formed can absorb more sound waves compared with the opening part 5A of FIG.
- the flat cross-sectional shape of the openings 5, 5A, 5B is circular, but may be another shape such as a triangle or a quadrangle. Furthermore, the frequency of the sound wave to be absorbed can be changed by adjusting the aperture.
- the upper, lower, and side surfaces of the hard closed cells 3, 3A are covered with fiber reinforced plastic, but the fibers are formed only on the upper and lower surfaces of the hard closed cells 3, 3A. A reinforced plastic may be provided.
- the open cell body 2 has the support portions 3c and 3Ac, but it may be an FRP molded body having no support portion inside. In this case, the portions of the hard closed cells 3 and 3A covering the peripheral side surface of the open cell 2 contribute to increasing the rigidity in the compression direction.
- FIG. 13 is a sectional view showing an elevator 22 according to a fifth embodiment of the present invention.
- the car of the high-speed elevator 22 includes a car floor 23 and a car wall 24.
- a wind regulation cover 25 shown in FIG. 16 is attached to the upper and lower parts of the car to rectify the air flow during traveling.
- An electric device 26 such as a blower covered with a wind regulation cover 25 is provided on the upper portion of the car.
- FIG. 14 is a cross-sectional view showing a portion indicated by an arrow A in FIG. 13, and the wind regulation cover 25 is constituted by the FRP molded body 1 shown in FIG. 1, and an opening 5 is formed inside.
- FIG. 15 is a cross-sectional view showing a part indicated by an arrow B in FIG. 13, and the car wall 24 is also constituted by the FRP molded body 1 shown in FIG. Moreover, the design board 4 comprised, for example with metal foil is attached to inner FRP4.
- the car wall 24 is composed of the FRP molded body 1, wind noise from the outside of the car is sound-insulated by the FRP 4 and the hard closed cell body 3. Moreover, since sound waves such as conversation in the car are absorbed by the open cell body 2 exposed through the opening 5, the sound of sound such as conversation in the car is suppressed.
- the FRP molded body 1 is applied to the car wall 24 as it is, the opening 5 is exposed to the outside and is not aesthetically pleasing.
- the design plate 27 covers the opening 5. And does not detract from the beauty. Further, since the design plate 27 is made of a thin metal foil, it has almost no sound insulating function, and sound waves are absorbed by the open cell body 2 through the opening 5.
- wind regulation cover 25 is also composed of the FRP molded body 1, wind noise from outside the car is sound-insulated by the FRP 4 and the hard closed cell body 3. Moreover, the noise of the electric equipment 26 such as a blower disposed inside the air conditioning cover 25 is absorbed by the open cell body 2 through the opening 5, and the transmission of noise into the car is suppressed.
- a manufacturing method of the cap-shaped air conditioning cover 25 having a curved surface will be described.
- a curved mold is first prepared, and a structure is formed (set) on the mold.
- this structure is covered with the open cell 2 in the order of the hard closed cell 3, the FRP 4, the peel ply 10, the flow media 11, and the bagging film 12.
- the inside of the bagging film 12 is depressurized by the operation of the vacuum pump 13, and then the resin 14 is injected into the bagging film 12, the resin 14 is impregnated into the FRP 4, and the resin 14 is cured.
- the peel ply 10, the flow media 11, and the bagging film 12 are removed to obtain a structure in which the opening 5 is not formed.
- the flow media 11, the peel ply 10, the bagging film 12, the FRP 4 and the open cell body 2 can be easily bent into a curved mold, while the hard closed cell 3 is bent at room temperature. It is difficult to shape. In particular, thermosetting such as phenol foam cannot be bent by heating.
- the wind regulation cover 25 in order to enable the bending of the hard closed-cell body 3, as shown in FIG. 17, it extends in the direction perpendicular to the bending direction on the surface of the inner hard closed-cell body 3.
- a plurality of grooves 28 are formed at intervals.
- the shape of the groove 28 is not particularly limited, but a V shape is preferable.
- the hard closed-cell body 3 of FIG. 17 is bent in the direction in which the groove 28 is formed, it may be bent in the opposite direction.
- the groove 28 widens and is filled with excess resin 14 and becomes heavy, but it can be used as a resin flow path during VaRTM molding, and the flow media 11 between the mold and the FRP 4 can be removed. It becomes possible.
- the resin 14 remaining in the groove 28 becomes a rib, and the effect of reinforcing the wind regulation cover 25 is obtained.
- the car wall 25 and the wind regulation cover 25 of the elevator 22 of this embodiment use the FRP molded body 1 of the first embodiment, but of course the FRP molded bodies 1A, 1B, and 1C of the second to fourth embodiments are used. It may be used.
- the elevator 22 to which the car wall 24 and the wind regulation cover 25 are applied is not limited to a high-speed elevator.
- 1, 1A, 1B, 1C Fiber reinforced plastic molded body, 2 open cell body, 2a divided part, 3, 3A hard closed cell body, 3a upper flat plate part (first flat part), 3b lower flat plate part (second 3c, 3Ac support part, 4 fiber reinforced plastic, 5, 5A, 5B opening, 10 peel ply, 11 flow media, 12 bagging film, 13 vacuum pump, 14 resin, 15 resin tank, 20 metal thin film, 21 Adhesive, H hole. 22 (high speed) elevator, 23 car floor, 24 car wall, 25 air conditioning cover, 26 electrical equipment (including blower, etc.), 27 design board, 28 groove.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
また、高剛性化を実現できる構造として、コア材の両面にFRPスキン板を配置したサンドイッチ構造体が知られている。
サンドイッチ構造体に用いられるコア材としては、軽量性等を確保する点から、多穴質体がよく用いられる。
多穴質体は、独立気泡からなる独立気泡体と連続気泡からなる連続気泡体とに分類される。独立気泡体は、断熱性、遮音性に優れる(例えば、特許文献1参照)。
一方、連続気泡体は、断熱性、吸音性に優れる(例えば、特許文献2参照)。
独立気泡体には、圧縮強度が高い硬質のものがあり、この硬質独立気泡体をコア材として用いることで、剛性、断熱性及び遮音性に優れたサンドイッチ構造体が得られる。 Fiber Reinforced Plastics (FRP) is attracting attention in various industrial fields as a lightweight and high-strength material.
As a structure capable of realizing high rigidity, a sandwich structure in which FRP skin plates are arranged on both surfaces of a core material is known.
As the core material used for the sandwich structure, a multi-porous material is often used from the viewpoint of securing light weight and the like.
Multi-porous materials are classified into closed cells composed of closed cells and open cells composed of open cells. A closed cell body is excellent in heat insulation and sound insulation (for example, refer patent document 1).
On the other hand, an open cell body is excellent in heat insulation and sound absorption (for example, refer patent document 2).
Some closed cell bodies are hard and have high compressive strength. By using this hard closed cell body as a core material, a sandwich structure excellent in rigidity, heat insulation and sound insulation can be obtained.
真空含浸成形法は、成形型に配置した繊維をバッグフィルムで覆い、バッグフィルム内を真空吸引した後、液状の樹脂をバッグフィルム内に注入し、樹脂を繊維に含浸させて硬化させ、その後成形型を抜いてFRP成形体を得る方法である。そして、このVaRTM法を用いて、独立気泡体からなるコア材とFRPからなるスキン材とを組み合せたサンドイッチ構造体であるFRP成形体を製造する方法が知られている(例えば、特許文献3参照)。 Furthermore, in recent years, in order to produce a relatively large sandwich structure at a low cost, a vacuum impregnation molding method (VaTM: Vacuum assist Resin Transfer Molding) for producing a sandwich structure in a reduced pressure environment by vacuum suction is being adopted. .
In the vacuum impregnation molding method, the fiber placed in the mold is covered with a bag film, the bag film is vacuumed, a liquid resin is injected into the bag film, the fiber is impregnated into the fiber and cured, and then molded. In this method, the mold is removed to obtain an FRP molded body. And the method of manufacturing the FRP molded object which is a sandwich structure which combined the core material which consists of a closed cell body, and the skin material which consists of FRP using this VaRTM method is known (for example, refer patent document 3). ).
吸音遮音複合構造体は、吸音材と遮音材とを組み合せて、空気伝播音を防止するものである。
即ち、吸音材は、音波を吸収することにより、音の反射を防ぎ、音源側で、音波の反射による音圧レベルの上昇を防ぎ、また遮音材は、音を吸収する機能はないが、音波を反射することにより、空気中を伝播する騒音を遮断する機能を有する(例えば、特許文献4参照)。 On the other hand, a sound-absorbing and sound-insulating composite structure is known as a method effective for noise countermeasures.
The sound-absorbing and sound-insulating composite structure is a combination of a sound-absorbing material and a sound-insulating material to prevent air-borne sound.
In other words, the sound absorbing material prevents sound reflection by absorbing sound waves, prevents an increase in sound pressure level due to sound wave reflection on the sound source side, and the sound insulating material has no function of absorbing sound. By reflecting the noise, it has a function of blocking noise propagating in the air (see, for example, Patent Document 4).
一方、吸音性に優れる連続気泡体は、一般的に圧縮強度が低いため、連続気泡体からなるコア材の両面にFRPスキン板を配置したサンドイッチ構造として用いても、硬質独立気泡体を用いたサンドイッチ構造と比較して高剛性化に寄与できない。
また、連続気泡体を用いたサンドイッチ構造体を、VaRTM法を用いて製造すると、気泡が連続しているため、連続気泡体に樹脂が含浸され、軽量性、吸音性が低下してしまう。 However, the sandwich structure in which the FRP skin plates are arranged on both surfaces of the core material made of hard closed cells has high compressive strength and excellent sound insulation, but has poor sound absorption.
On the other hand, since open cells having excellent sound absorption generally have a low compressive strength, hard closed cells were used even when used as a sandwich structure in which FRP skin plates are arranged on both sides of a core material made of open cells. Compared to the sandwich structure, it cannot contribute to higher rigidity.
In addition, when a sandwich structure using an open cell body is manufactured by using the VaRTM method, the open cell body is impregnated with resin, and the lightness and sound absorption are deteriorated.
このものの場合、高剛性の吸音遮音複合構造体が得られるものの、サンドイッチ構造体の片面に連続気泡体を接着する、もしくは固定する工程を必要とするとともに、剛性・遮音性を得るための厚みと吸音性を得るための厚みが必要となり、全体が厚肉の吸音遮音複合構造体になってしまうという問題点がある。 In view of this, a structure in which an open-cell body having excellent sound-absorbing property is attached to one side of a sandwich structure in which the core material is a closed-cell body having excellent sound-insulating properties is conceivable.
In this case, although a highly rigid sound-absorbing / insulating composite structure can be obtained, it requires a process of adhering or fixing the open cell to one side of the sandwich structure, and has a thickness for obtaining rigidity and sound insulation. Thickness is required to obtain sound absorption, and there is a problem that the entire structure becomes a thick sound absorbing and sound insulating composite structure.
また、硬質独立気泡体の両面に繊維強化プラスチックを配置しているので、高い剛性が得られる。 The fiber-reinforced plastic molded body according to the present invention includes a surface where the open cell body is exposed and a surface where the open cell body is not exposed, and the surface where the open cell body is exposed is because the open cell body absorbs sound waves. High sound absorption characteristics can be obtained. On the other hand, since the fiber reinforced plastic and the hard closed cell reflect sound waves on the surface where the open cell body is not exposed, high sound insulation characteristics can be obtained.
Moreover, since the fiber reinforced plastic is arrange | positioned on both surfaces of the hard closed cell body, high rigidity is acquired.
図1はこの発明の実施の形態1による繊維強化プラスチック成形体1(以下、FRP成形体と略称する。)を示す断面図である。
このFRP成形体1は、連続気泡体2と、この連続気泡体2を覆った硬質独立気泡体3と、この硬質独立気泡体3の全面(6面)に設けられた繊維強化プラスチック(以下、FRPと略称する。)4とを備えている。このFRP4には、樹脂が含浸、硬化されている。
FRP成形体1の下面には、図3に示すように配列された開口部5が複数個形成されており、開口部5を通じて連続気泡体2は、外部と導通している。
硬質独立気泡体3は、図5に示す、第1の平面部である上側平板部3a、第2の平面部である下側平板部3b及び図4に示すように連続気泡体2を四角形状の分割部2aに区画した支え部3cとから構成されている。
1 is a cross-sectional view showing a fiber-reinforced plastic molded body 1 (hereinafter abbreviated as an FRP molded body) according to
The FRP molded
A plurality of
The rigid
硬質独立気泡体3としては、フェノール、ポリウレタン、ポリオレフィン等の硬質発泡体を用いることができる。なかでも、難燃性のフェノール発泡体が好ましい。
連続気泡体2としては、吸音率の高いガラスウール、ウレタンフォーム等を用いることができる。 Here, as FRP4 which is a skin material, carbon fiber, glass fiber, Zylon fiber, Kepler fiber and the like are not particularly limited, but carbon fiber reinforced plastic capable of maximizing lightness and strength. Is preferred. Moreover, as a fiber, the textile fabric which consists of a long fiber, for example, a unidirectional material, and a cloth material, are preferable.
As the hard
As the
先ず、平板状の硬質独立気泡体ブロックを4箇所四角形状に切り抜き、穴Hを形成するとともに硬質独立気泡体3の支え部3cを得る。
次に、下側平板部3bの上に支え部3cを載置し、支え部3cの穴に連続気泡体2の分割部2aを嵌入する。
この後、支え部3c上に上側平板部3aを載置する(図5参照)。
このとき、下側平板部3bと支え部3c、支え部3cと上側平板部3aとは、事前に接着しなくてもよい。後の減圧工程で、下側平板部3b及び上側平板部3aは、大気圧で内側に押圧され、ある程度密着され、次工程でそれぞれの界面に樹脂14が侵入し、接着される。なお、このとき、樹脂14が連続気泡体2までは達しない。
但し、それぞれの界面の面積が大きい場合には、サンドイッチ構造としての剛性を高めるために、樹脂14で、下側平板部3bと支え部3c、支え部3cと上側平板部3aとを、事前に接着した方がよい。 Next, a method for manufacturing the FRP molded
First, a flat hard closed cell block having a flat plate shape is cut into four squares to form holes H, and a
Next, the
Thereafter, the upper
At this time, the lower
However, when the area of each interface is large, in order to increase the rigidity as the sandwich structure, the lower
この後、真空ポンプ13の作動により、バギングフィルム12内を減圧する。
この次に、樹脂タンク15内に貯留された樹脂14をバギングフィルム12内に注入し、FRP4に樹脂14を含浸する(図6参照)。
このとき、連続気泡体2は、全面が硬質独立気泡体3で覆われているため、樹脂14が連続気泡体2に浸み込むことはない。
次に、FRP4に含浸した樹脂14を硬化する。
なお、図6の符号16はバルブである。 After the hard closed cell covering step for covering the entire surface (6 surfaces) of the
Thereafter, the inside of the
Next, the
At this time, since the entire
Next, the
In addition, the code |
FRPの樹脂14としては、特に限定されるものではないが、ビニルエステル樹脂、ポリエステル樹脂、エポキシ樹脂、シアネート樹脂、フェノール樹脂、ポリイミド樹脂等の熱硬化性樹脂が好ましい。なかでも、常温硬化が可能で、かつ低粘度で含浸性に優れるビニルエステル樹脂が、成形性の観点から好ましい。さらには、また、難燃性を付与させた、ビニルエステル樹脂が好ましい。 Next, as shown in FIG. 8, drilling is performed on one side of the semi-finished product to form the
The
また、外側から発生した音波は、FRP4や硬質独立気泡体3で反射する。そのため、内側に透過する量を低減することができる。
即ち、FRP成形体1は、外側の面が遮音性に優れ、内側の面が吸音性に優れているので、FRP成形体1の内側において、外側で発生した音波のうち、FRP成形体1を透過する音波量が小さく、また内側で発生した音波のうち、内側で反射する音波量も小さいので、騒音対策の効果が大である。 In the FRP molded
In addition, sound waves generated from the outside are reflected by the
That is, the FRP molded
従って、VaRTM法を用いてサンドイッチ構造体を製造しても、連続気泡体2に樹脂が含浸することはなく、VaRTM法により、軽量で吸音性及び遮音性に優れたFRP成形体1を安価に提供することができる。 Moreover, in the manufacturing process of the fiber reinforced plastic molded
Therefore, even if a sandwich structure is manufactured using the VaRTM method, the
図9はこの発明の実施の形態2のFRP成形体1Aを示す平断面図である。
この実施の形態では、FRP成形体1Aでは、硬質独立気泡体3Aは、支え部3Acにより連続気泡体2が三角形状の分割部2aに区画されている。
他の構成は、実施の形態1と同じである。
FIG. 9 is a plan sectional view showing an FRP molded
In this embodiment, in the FRP molded
Other configurations are the same as those of the first embodiment.
他の作用、効果は、実施の形態1のFRP成形体1と同じである。 The FRP molded
Other functions and effects are the same as those of the FRP molded
図10はこの発明の実施の形態3のFRP成形体1Bを示す断面図であり、この実施の形態では、FRP4の上面、下面に接着材21を用いてアルミニウム製の金属薄膜20が貼付けられている。
他の構成は、実施の形態1と同じである。
FIG. 10 is a cross-sectional view showing an FRP molded
Other configurations are the same as those of the first embodiment.
なお、片面のみに金属薄膜20を貼付けてもよい。
他の作用、効果は、実施の形態1のFRP成形体1と同じである。 In the FRP molded
In addition, you may affix the metal
Other functions and effects are the same as those of the FRP molded
図11はこの発明の実施の形態4のFRP成形体1Cを示す断面図であり、この実施の形態では、開口部5Aは、中心線に沿った断面形状が外側に拡大した台形形状である。
他の構成は、実施の形態1と同じである。
FIG. 11 is a cross-sectional view showing an FRP molded
Other configurations are the same as those of the first embodiment.
他の作用、効果は、実施の形態1のFRP成形体1と同じである。 In the FRP molded
Other functions and effects are the same as those of the FRP molded
このようにすることで、開口部5Bが形成されたFRP成形体1Cは、図11の開口部5Aと比較してより多くの音波を吸収できる。 In addition, as shown in FIG. 12, the
By doing in this way, the FRP molded
また、各実施の形態1~4では、硬質独立気泡体3,3Aの上面、下面及び側面の各面を繊維強化プラスチックで覆ったが、硬質独立気泡体3,3Aの上面及び下面のみに繊維強化プラスチックを設けるようにしてもよい。
また、各実施の形態1~4では連続気泡体2の内部に、支え部3c,3Acを有しているが、内部に支え部が無いFRP成形体であってもよい。このものの場合、連続気泡体2の周側面を覆った硬質独立気泡体3,3Aの部位が、圧縮方向の剛性を高めるのに寄与している。 In each of the first to fourth embodiments, the flat cross-sectional shape of the
In each of the first to fourth embodiments, the upper, lower, and side surfaces of the hard
Further, in each of the first to fourth embodiments, the
図13はこの発明の実施の形態5のエレベーター22を示す断面図である。
この高速のエレベーター22のかごは、かご床23及びかご壁24で構成されている。
かごの上部及び下部には、走行時の空気の流れを整流する図16に示す整風カバー25が取付けられている。
かごの上部には、整風カバー25で覆われた送風機等の電気機器26が設けられている。
13 is a sectional view showing an
The car of the high-
A
An
図15は図13の矢印Bの部位を示す断面図であり、かご壁24も図1に示したFRP成形体1で構成されており、内側に開口部5が形成されている。また、内側のFRP4には、例えば金属箔で構成された意匠板4が取付けられている。 FIG. 14 is a cross-sectional view showing a portion indicated by an arrow A in FIG. 13, and the
FIG. 15 is a cross-sectional view showing a part indicated by an arrow B in FIG. 13, and the
なお、FRP成形体1をかご壁24にそのまま適用した場合には、開口部5が外部に露出して美観上よくないが、この実施の形態では、意匠板27がこの開口部5を覆っており、美観を損ねることはない。また、意匠板27は、薄い金属箔で構成されているので、遮音機能を殆ど有さず、音波は、開口部5を通じて連続気泡体2で吸収される。 In the
When the FRP molded
各面が膨大の曲面形状の整風カバー25を製造するに当たり、まず曲面状の成形型を準備し、この成形型に、構造体を賦形(セット)する。
この構造体は、図6に示すように、連続気泡体2に、硬質独立気泡体3、FRP4、ピールプライ10、フローメディア11、及びバギングフィルム12の順序で覆われている。
この構造体については、真空ポンプ13の作動により、バギングフィルム12内を減圧し、この次に樹脂14をバギングフィルム12内に注入し、FRP4に樹脂14を含浸し、樹脂14を硬化する。
次に、ピールプライ10、フローメディア11、バギングフィルム12を除去し、開口部5が形成されていない、構造体を得る。 Next, a manufacturing method of the cap-shaped
In manufacturing the
As shown in FIG. 6, this structure is covered with the
About this structure, the inside of the
Next, the
特に、フェノール発泡材のような熱硬化性では、加熱して曲げることができない。 The
In particular, thermosetting such as phenol foam cannot be bent by heating.
ただし、樹脂含浸を防止する機能が失われないようにするため硬質独立気泡体3の外側まで貫通しないようにする必要がある。
また、溝28の形状は特に限定されるものではないが、V字が好ましい。
さらに、図17の硬質独立気泡体3は、溝28を形成した方向に曲げているが、反対に曲げてもよい。この場合は、溝28が広がり、余分な樹脂14が充填され重くなるが、VaRTM成形時の樹脂流路として活用することができ、成形型とFRP4との間のフローメディア11を除去することが可能となる。加えて、成形後、溝28に残る樹脂14は、リブとなり整風カバー25の補強効果が得られる。 In the
However, in order not to lose the function of preventing resin impregnation, it is necessary not to penetrate to the outside of the hard
The shape of the
Furthermore, although the hard closed-
また、この実施の形態に適用される、かご壁24及び整風カバー25が適用されるエレベーター22は、高速エレベーターに限定されないのは勿論である。 The
Of course, the
22 (高速)エレベーター、23 かご床、24 かご壁、25 整風カバー、26 電気機器(含む送風機等)、27 意匠板、28 溝。 1, 1A, 1B, 1C Fiber reinforced plastic molded body, 2 open cell body, 2a divided part, 3, 3A hard closed cell body, 3a upper flat plate part (first flat part), 3b lower flat plate part (second 3c, 3Ac support part, 4 fiber reinforced plastic, 5, 5A, 5B opening, 10 peel ply, 11 flow media, 12 bagging film, 13 vacuum pump, 14 resin, 15 resin tank, 20 metal thin film, 21 Adhesive, H hole.
22 (high speed) elevator, 23 car floor, 24 car wall, 25 air conditioning cover, 26 electrical equipment (including blower, etc.), 27 design board, 28 groove.
Claims (14)
- 連続気泡体と、
この連続気泡体を覆った硬質独立気泡体と、
この硬質独立気泡体の少なくとの両面に設けられた繊維強化プラスチックとを備え、
前記連続気泡体は、前記硬質独立気泡体及び前記繊維強化プラスチックに形成された開口部を通じて外部に露出していることを特徴とする繊維強化プラスチック成形体。 Open cells,
A hard closed cell covering this open cell,
With fiber reinforced plastic provided on at least both sides of this hard closed cell body,
The said open cell body is exposed outside through the opening formed in the said hard closed cell body and the said fiber reinforced plastic, The fiber reinforced plastic molding characterized by the above-mentioned. - 外表面に金属層が設けられていることを特徴とする請求項1に記載の繊維強化プラスチック成形体。 2. The fiber-reinforced plastic molded article according to claim 1, wherein a metal layer is provided on the outer surface.
- 前記硬質独立気泡体は、対向した面同士を連結して設けられ圧縮方向の押圧力に対する支えとなる支え部を有することを特徴とする請求項1または2に記載の繊維強化プラスチック成形体。 3. The fiber-reinforced plastic molded body according to claim 1 or 2, wherein the hard closed cell body has a support portion that is provided by connecting opposing faces and serves as a support for a pressing force in a compression direction.
- 前記支え部は、前記連続気泡体を三角形状に区画して設けられていることを特徴とする請求項3に記載の繊維強化プラスチック成形体。 The fiber-reinforced plastic molded body according to claim 3, wherein the support portion is provided by dividing the open cell body into a triangular shape.
- 前記開口部は、中心線に沿った断面形状が台形であることを特徴とする請求項1~4の何れか1項に記載の繊維強化プラスチック成形体。 The fiber-reinforced plastic molded body according to any one of claims 1 to 4, wherein the opening has a trapezoidal cross-sectional shape along a center line.
- 前記開口部は、前記連続気泡体にまで及んでいることを特徴とする請求項5に記載の繊維強化プラスチック成形体。 The fiber-reinforced plastic molded body according to claim 5, wherein the opening extends to the open cell body.
- 前記繊維強化プラスチックは、炭素繊維強化プラスチックであることを特徴とする請求項1~6の何れか1項に記載の繊維強化プラスチック成形体。 The fiber-reinforced plastic molded body according to any one of claims 1 to 6, wherein the fiber-reinforced plastic is a carbon fiber-reinforced plastic.
- 前記硬質独立気泡体は、曲げ方向に対して垂直方向に延びた溝が間隔をあけて面上に複数形成されていることを特徴とする請求項1~7の何れか1項に記載の繊維強化プラスチック成形体。 The fiber according to any one of claims 1 to 7, wherein a plurality of grooves extending in a direction perpendicular to the bending direction are formed on the surface of the hard closed cell body at intervals. Reinforced plastic molding.
- 前記請求項1~8の何れか1項に記載の繊維強化プラスチック成形体からなるかご壁を有することを特徴とするエレベーター。 An elevator comprising a car wall made of the fiber-reinforced plastic molded body according to any one of claims 1 to 8.
- 前記かご壁には、前記開口部を覆った意匠板が設けられていることを特徴とする請求項9に記載のエレベーター。 The elevator according to claim 9, wherein a design plate that covers the opening is provided on the car wall.
- 前記請求項1~8の何れか1項に記載の繊維強化プラスチック成形体からなり、かごの上部及び下部に取付けられかごの走行時の空気の流れを整流する整風カバーを有することを特徴とするエレベーター。 9. A fiber reinforced plastic molded body according to any one of claims 1 to 8, wherein the wind proof cover is attached to the upper and lower parts of the car to rectify the air flow during the running of the car. Elevator.
- 前記整風カバーは、面が外方向に膨大な曲面であるキャップ形状であることを特徴とする請求項11に記載のエレベーター。 The elevator according to claim 11, wherein the wind regulation cover has a cap shape whose surface is an enormous curved surface in an outward direction.
- 前記請求項1,2,4~8の何れか1項に記載の繊維強化プラスチック成形体の製造方法であって、
前記連続気泡体の全面を前記硬質独立気泡体で覆う硬質独立気泡体覆い工程と、
この硬質独立気泡体を強化繊維で覆う工程と、
この強化繊維をバッグフィルムで覆う工程と、
このバッグフィルムの内部を減圧する減圧工程と、
前記バッグフィルムの内部に液状の樹脂を注入し、前記強化繊維に樹脂を含浸させるとともにこの強化繊維に含浸された樹脂を硬化させて前記繊維強化プラスチックを形成する工程と、
前記硬質独立気泡体及び前記繊維強化プラスチックを穿設して前記開口部を形成する工程と
を備えたことを特徴とする繊維強化プラスチック成形体の製造方法。 A method for producing a fiber-reinforced plastic molded body according to any one of claims 1, 2, 4 to 8,
A hard closed cell covering step of covering the entire surface of the open cell with the hard closed cell;
Covering the hard closed cells with reinforcing fibers;
A step of covering the reinforcing fiber with a bag film;
A decompression step of decompressing the interior of the bag film;
Injecting a liquid resin into the bag film, impregnating the reinforcing fiber with the resin and curing the resin impregnated in the reinforcing fiber to form the fiber-reinforced plastic;
And a step of forming the opening by forming the hard closed cell body and the fiber reinforced plastic. - 前記請求項3に記載の繊維強化プラスチック成形体の製造方法であって、
前記連続気泡体の全面を前記硬質独立気泡体で覆う硬質独立気泡体覆い工程と、
この硬質独立気泡体を強化繊維で覆う工程と、
この強化繊維をバッグフィルムで覆う工程と、
このバッグフィルムの内部を減圧する減圧工程と、
前記バッグフィルムの内部に液状の樹脂を注入し、前記強化繊維に樹脂を含浸させるとともにこの強化繊維に含浸された樹脂を硬化させて前記繊維強化プラスチックを形成する工程と、
前記硬質独立気泡体及び前記繊維強化プラスチックを穿設して前記開口部を形成する工程とを備え、
前記硬質独立気泡体覆い工程は、硬質独立気泡体ブロック、第1の平板部及び第2の平板部からなる前記硬質独立気泡体のうち、硬質独立気泡体ブロックを穿設して、複数の穴及び前記支え部を形成する工程と、
この各穴に、前記連続気泡体から複数に分割された各分割部を嵌入する工程と、
前記連続気泡体の両面を前記第1の平板部及び前記第2の平板部で覆った工程と
を有することを特徴とする繊維強化プラスチック成形体の製造方法。 A method for producing a fiber-reinforced plastic molded article according to claim 3,
A hard closed cell covering step of covering the entire surface of the open cell with the hard closed cell;
Covering the hard closed cells with reinforcing fibers;
A step of covering the reinforcing fiber with a bag film;
A decompression step of decompressing the interior of the bag film;
Injecting a liquid resin into the bag film, impregnating the reinforcing fiber with the resin and curing the resin impregnated in the reinforcing fiber to form the fiber-reinforced plastic;
Drilling the hard closed cell body and the fiber reinforced plastic to form the opening, and
The hard closed cell covering step includes forming a hard closed cell block out of the hard closed cell formed of a hard closed cell block, a first flat plate portion, and a second flat plate portion, and a plurality of holes. And forming the support part;
In each of the holes, a step of inserting each divided portion divided into a plurality of parts from the open cell body, and
And a step of covering both surfaces of the open cell body with the first flat plate portion and the second flat plate portion.
Priority Applications (2)
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CN201180014641.7A CN103108748B (en) | 2010-03-29 | 2011-02-23 | Fiber-reinforced plastic formed body, its manufacture method and elevator |
JP2012508146A JP5377754B2 (en) | 2010-03-29 | 2011-02-23 | FIBER-REINFORCED PLASTIC MOLDED BODY, ITS MANUFACTURING METHOD, AND ELEVATOR |
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JP2010-074574 | 2010-03-29 | ||
JP2010074574 | 2010-03-29 |
Publications (1)
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WO2011122179A1 true WO2011122179A1 (en) | 2011-10-06 |
Family
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PCT/JP2011/053984 WO2011122179A1 (en) | 2010-03-29 | 2011-02-23 | Fiber-reinforced plastic molding, production method therefor, and elevator |
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JP (1) | JP5377754B2 (en) |
CN (1) | CN103108748B (en) |
WO (1) | WO2011122179A1 (en) |
Cited By (3)
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CN104108641A (en) * | 2013-04-16 | 2014-10-22 | 通力股份公司 | An Elevator Car And An Elevator |
JP2015003469A (en) * | 2013-06-21 | 2015-01-08 | 三菱電機株式会社 | Sandwich structure, floor for elevator and method of producing sandwich structure |
EP3031765A1 (en) * | 2014-12-11 | 2016-06-15 | Kone Corporation | Elevator car |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104999772B (en) * | 2015-08-03 | 2018-04-17 | 宁波柯乐芙家居科技股份有限公司 | arc plate manufacturing process |
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- 2011-02-23 JP JP2012508146A patent/JP5377754B2/en not_active Expired - Fee Related
- 2011-02-23 WO PCT/JP2011/053984 patent/WO2011122179A1/en active Application Filing
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CN104108641A (en) * | 2013-04-16 | 2014-10-22 | 通力股份公司 | An Elevator Car And An Elevator |
JP2015003469A (en) * | 2013-06-21 | 2015-01-08 | 三菱電機株式会社 | Sandwich structure, floor for elevator and method of producing sandwich structure |
EP3031765A1 (en) * | 2014-12-11 | 2016-06-15 | Kone Corporation | Elevator car |
US10077167B2 (en) | 2014-12-11 | 2018-09-18 | Kone Corporation | Elevator car with spoiler component having at least one curved spoiler element |
Also Published As
Publication number | Publication date |
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JPWO2011122179A1 (en) | 2013-07-08 |
JP5377754B2 (en) | 2013-12-25 |
CN103108748A (en) | 2013-05-15 |
CN103108748B (en) | 2015-12-09 |
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