JP2022134516A - High-pressure tank manufacturing apparatus and high-pressure tank manufacturing method - Google Patents

High-pressure tank manufacturing apparatus and high-pressure tank manufacturing method Download PDF

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Publication number
JP2022134516A
JP2022134516A JP2021033667A JP2021033667A JP2022134516A JP 2022134516 A JP2022134516 A JP 2022134516A JP 2021033667 A JP2021033667 A JP 2021033667A JP 2021033667 A JP2021033667 A JP 2021033667A JP 2022134516 A JP2022134516 A JP 2022134516A
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Prior art keywords
cavity
intermediate body
pressure tank
pin portion
pins
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智彦 西山
Tomohiko Nishiyama
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Toyota Motor Corp
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Toyota Motor Corp
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Priority to JP2021033667A priority Critical patent/JP2022134516A/en
Priority to CN202210150934.8A priority patent/CN115027077A/en
Priority to DE102022104776.8A priority patent/DE102022104776A1/en
Publication of JP2022134516A publication Critical patent/JP2022134516A/en
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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
    • 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
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • 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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • 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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • 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
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • 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
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
    • B29C70/548—Measures for feeding or distributing the matrix material in the reinforcing structure using distribution constructions, e.g. channels incorporated in or associated with the mould
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J12/00—Pressure vessels in general
    • 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
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7154—Barrels, drums, tuns, vats
    • B29L2031/7156—Pressure vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2154—Winding
    • F17C2209/2163—Winding with a mandrel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

To provide a technique to prevent intermediates from contacting the surface of the cavity.SOLUTION: The high-pressure tank manufacturing apparatus has a mold having a cavity in which an intermediate body having a fiber bundle wound around a liner is disposed, and a pin portion movably arranged with respect to the mold and movable between a contact position in which the pin portion protrudes into the cavity from a surface of the cavity and contacts an intermediate body disposed in the cavity, and a release position in which the pin portion is separated from an intermediate body disposed in the cavity. The pin portion is arranged to allow molten resin flowing into the cavity to flow over the pin portion between the surface of the cavity and the intermediate body in the cavity at the contact position.SELECTED DRAWING: Figure 1

Description

本明細書は、高圧タンク製造装置及び高圧タンク製造方法を開示する。 This specification discloses a high pressure tank manufacturing apparatus and a high pressure tank manufacturing method.

特許文献１に、高圧タンクの製造方法が開示されている。この製造方法では、金型の樹脂注入口を囲むように設けられたスライドコアを金型のキャビティ面から中間体の方向に向かって移動させることによって、スライドコアを繊維束に当接させて、樹脂注入口から樹脂を注入して繊維束に含浸させる。樹脂注入時にスライドコアを中間体の表面に当接させることによって、樹脂の流れを強制的に繊維束の内層側に向け、繊維束の内層部まで樹脂を含浸させる。 Patent Literature 1 discloses a method for manufacturing a high-pressure tank. In this manufacturing method, the slide core provided to surround the resin injection port of the mold is moved from the cavity surface of the mold toward the direction of the intermediate, thereby bringing the slide core into contact with the fiber bundle. Resin is injected from the resin injection port to impregnate the fiber bundle. By bringing the slide core into contact with the surface of the intermediate body when injecting the resin, the flow of the resin is forced toward the inner layer side of the fiber bundle, and the inner layer of the fiber bundle is impregnated with the resin.

特開２０１９－１４２１１８号公報Japanese Patent Application Laid-Open No. 2019-142118

高圧タンクの形状は、高圧タンクが搭載される領域によって決定される。高圧タンクの中間体は、ライナに繊維束を巻回して作製される。中間体の形状は、高圧タンクの形状に合わせて形成される。例えば、高圧タンクが細長い形状である場合、中間体も細長い形状で形成される。中間体の形状によっては、樹脂を含浸させる前に変形し、中間体がキャビティの表面に広範囲に亘って接触する場合がある。 The shape of the high pressure tank is determined by the area where the high pressure tank is mounted. The intermediate body of the high-pressure tank is produced by winding the fiber bundle around the liner. The shape of the intermediate body is formed according to the shape of the high-pressure tank. For example, if the high-pressure tank has an elongated shape, the intermediate body is also formed with an elongated shape. Depending on the shape of the intermediate, it may deform before being impregnated with the resin, and the intermediate may contact the surface of the cavity over a wide area.

中間体の表面のうちキャビティの表面に接触している領域では、中間体とキャビティとの間に溶融樹脂が流入しない。この結果、中間体の表面に溶融樹脂が接触されず、中間体の表面から溶融樹脂が含浸することができない。この結果、繊維束に樹脂が十分に含浸されていない箇所が生じ得る。 Molten resin does not flow between the intermediate body and the cavity in a region of the surface of the intermediate body that is in contact with the surface of the cavity. As a result, the surface of the intermediate does not come into contact with the molten resin, and the surface of the intermediate cannot be impregnated with the molten resin. As a result, there may be areas where the fiber bundle is not sufficiently impregnated with the resin.

本明細書では、中間体がキャビティの表面に接触することを抑制する技術を提供する。 This specification provides a technique for suppressing contact of the intermediate with the surface of the cavity.

本明細書では、高圧タンク製造装置を開示する。高圧タンク製造装置は、ライナに繊維束が巻回されている中間体が配置されるキャビティを有する金型と、前記金型に対して移動可能に配置されており、前記キャビティの表面から前記キャビティ内に突出して前記キャビティに配置される中間体に接触する接触位置と、前記キャビティに配置される中間体から離間する離間位置と、の間で移動するピン部と、を備え、前記ピン部は、前記接触位置で、前記キャビティに流入される溶融樹脂が前記キャビティの前記表面と前記中間体との間で前記ピン部を越えて流動可能に配置されている。 Disclosed herein is a high pressure tank manufacturing apparatus. A high-pressure tank manufacturing apparatus includes a mold having a cavity in which an intermediate having a fiber bundle wound around a liner is disposed, and a mold which is movably arranged with respect to the mold, and a surface of the cavity from the surface of the mold. a contact position that protrudes inward and contacts an intermediate body placed in the cavity; and a separation position that is spaced apart from the intermediate body placed in the cavity, the pin part and, at the contact position, the molten resin flowing into the cavity is arranged so as to flow beyond the pin portion between the surface of the cavity and the intermediate body.

また、本明細書では、高圧タンクの製造方法を開示する。この製造方法は、上記の高圧タンク製造装置のキャビティに、ライナに繊維束が巻回されている中間体を配置する配置工程であって、ピン部が接触位置に配置される前記配置工程と、前記キャビティに溶融樹脂を注入して、前記溶融樹脂が前記キャビティの前記表面と前記中間体との間において前記ピン部を越えて流動させて前記キャビティ内に前記溶融樹脂を充填する充填工程と、前記キャビティ内の前記樹脂を前記繊維束に含浸させる含浸工程と、前記ピン部を接触位置から離間位置に移動させる移動工程と、を備える。 Also disclosed herein is a method of manufacturing a high pressure tank. This manufacturing method includes an arrangement step of arranging the intermediate body having the fiber bundle wound around the liner in the cavity of the high-pressure tank manufacturing apparatus, the arrangement step of arranging the pin portion at a contact position; a filling step of injecting a molten resin into the cavity and allowing the molten resin to flow between the surface of the cavity and the intermediate body beyond the pin portion to fill the cavity with the molten resin; An impregnating step of impregnating the fiber bundle with the resin in the cavity, and a moving step of moving the pin portion from the contact position to the separated position.

上記の構成によれば、キャビティ内で、ピン部が中間体と接触することによって、中間体がキャビティ表面に接触することを抑制することができる。溶融樹脂は、ピン部を越えてキャビティ表面と中間体との間を流れることができるため、ピン部によって溶融樹脂の流れが阻害されることを抑制することができる。また、ピン部を接触位置から離間位置に移動させることによって、ピン部との接触していた部分の中間体の表面にも溶融樹脂を接触させることができる。 According to the above configuration, it is possible to prevent the intermediate body from coming into contact with the cavity surface by contacting the pin portion with the intermediate body in the cavity. Since the molten resin can flow between the cavity surface and the intermediate body over the pin portions, it is possible to prevent the pin portions from obstructing the flow of the molten resin. Further, by moving the pin portion from the contact position to the separated position, the molten resin can be brought into contact with the surface of the intermediate body that was in contact with the pin portion.

実施例の高圧タンク製造装置の縦断面図。FIG. 1 is a vertical cross-sectional view of a high-pressure tank manufacturing apparatus according to an embodiment; 実施例の高圧タンクの縦断面図。FIG. 2 is a vertical cross-sectional view of the high-pressure tank of the embodiment; 実施例のキャビティを流れる樹脂の流れを表す模式図。FIG. 4 is a schematic diagram showing the flow of resin flowing through the cavity of the example. 実施例の高圧タンクの製造方法を示すフローチャート。4 is a flow chart showing a method of manufacturing a high-pressure tank according to an embodiment; 実施例のピン部が離間位置に位置する状態の高圧タンク製造装置の縦断面図。FIG. 4 is a vertical cross-sectional view of the high-pressure tank manufacturing apparatus in which the pin portion of the embodiment is positioned at the separated position;

本明細書が開示する熱管理装置の技術要素を、以下に列記する。なお、以下の各技術要素は、それぞれ独立して有用なものである。 The technical elements of the thermal management device disclosed in this specification are listed below. Each of the following technical elements is independently useful.

前記ピン部は、前記キャビティの前記表面から同一の方向に向かって突出している複数のピンであって、互いに離間して配置されている前記複数のピンを備えていてもよい。 The pin portion may include a plurality of pins protruding in the same direction from the surface of the cavity and spaced apart from each other.

この構成によれば、同一方向に突出する複数のピンが複数の位置で中間体に接触することによって、中間体を支持することができる。これにより、中間体がキャビティ表面に接触することを抑制することができる。 According to this configuration, the intermediate body can be supported by the plurality of pins protruding in the same direction contacting the intermediate body at a plurality of positions. This can prevent the intermediate body from contacting the cavity surface.

前記中間体は、前記中間体の長手方向に延びる筒状の中央部分と、前記中央部分の両端のそれぞれにおいて先端に向かって徐々に細くなる先端部分と、を備え、前記ピン部は、前記中央部分に接触してもよい。 The intermediate body includes a cylindrical center portion extending in the longitudinal direction of the intermediate body, and tip portions that gradually taper toward the tip at both ends of the center portion. parts may be touched.

中間体の先端部分は徐々に細くなる形状を有しているため、変形しづらい。一方、中間体の中央部分は、筒状を有しており、変形しやすい。ピン部が中央部分に接触することによって、より変形しやすい中央部分にピン部を接触させることができる。 Since the tip portion of the intermediate has a shape that tapers gradually, it is difficult to deform. On the other hand, the central portion of the intermediate has a cylindrical shape and is easily deformed. The contact of the pin portion with the central portion allows the pin portion to contact the central portion, which is more easily deformed.

高圧タンクの製造方法の前記移動工程では、前記キャビティ内において前記樹脂が硬化する前に、前記ピン部を、前記接触位置から前記離間位置に移動させてもよい。 In the moving step of the high-pressure tank manufacturing method, the pin portion may be moved from the contact position to the separated position before the resin hardens in the cavity.

この構成によれば、ピン部が接触位置から離間位置に移動することによって形成された空間に、硬化していない溶融樹脂を流入させることができる。これにより、中間体の表面うち、ピン部に接触していた部分にも、樹脂を接触させることができる。これにより、中間体の全域において、中間体の表面から繊維束に樹脂を含浸させることができる。 According to this configuration, uncured molten resin can flow into the space formed by moving the pin portion from the contact position to the separated position. As a result, the resin can be brought into contact with the portion of the surface of the intermediate that has been in contact with the pin portion. Thereby, the resin can be impregnated into the fiber bundle from the surface of the intermediate over the entire area of the intermediate.

（実施例）
図１に示すように、本実施例の高圧タンク製造装置１０は、高圧タンク１００（図２参照）を製造する際に用いられる。 (Example)
As shown in FIG. 1, a high-pressure tank manufacturing apparatus 10 of this embodiment is used when manufacturing a high-pressure tank 100 (see FIG. 2).

（高圧タンクの構成）
最初に、図２を参照して高圧タンク１００を説明する。高圧タンク１００は、燃料電池自動車に搭載され、天然ガス、水素ガス等の燃料ガスを貯蔵する。高圧タンク１００は、ライナ１０２と、樹脂が含浸されている繊維束１０４と、環状部材１０６と、を備える。ライナ１０２は、ガスバリア性の樹脂材料で作製されている。ライナ１０２は、中央部分１０２ａにおいて円筒形状を有している。ライナ１０２の先端部分１０２ｂは、中央部分１０２ａから離間してライナ１０２の端に向かうのに従って、徐々に細くなっている。 (Configuration of high-pressure tank)
First, the high pressure tank 100 will be described with reference to FIG. A high-pressure tank 100 is mounted on a fuel cell vehicle and stores fuel gas such as natural gas and hydrogen gas. The high-pressure tank 100 includes a liner 102 , a fiber bundle 104 impregnated with resin, and an annular member 106 . The liner 102 is made of gas barrier resin material. The liner 102 has a cylindrical shape at the central portion 102a. A tip portion 102b of the liner 102 tapers away from the central portion 102a toward the ends of the liner 102. As shown in FIG.

ライナ１０２の外側表面には、繊維束１０４が配置されている。繊維束１０４は、ライナ１０２の外側表面に炭素繊維を巻回させることによって形成されている。繊維束１０４は、ライナ１０２の全長に亘って配置されている。繊維束１０４は、ブレーディング製法によって炭素繊維が巻回されている。 A fiber bundle 104 is disposed on the outer surface of the liner 102 . Fiber bundle 104 is formed by winding carbon fibers around the outer surface of liner 102 . The fiber bundles 104 are arranged along the length of the liner 102 . The fiber bundle 104 is wound with carbon fibers by a braiding method.

繊維束１０４は、高圧タンク１００の両端において、ライナ１０２と環状部材１０６とによって、挟まれて保持されている。高圧タンク製造装置１０は、ライナ１０２に繊維束１０４が巻回され、かつ、環状部材１０６によって繊維束１０４が保持されている中間体２００の繊維束１０４に樹脂を含浸させるために用いられる。このため、高圧タンク製造装置１０は、含浸装置１０と呼ぶこともできる。なお、変形例では、高圧タンク１００の用途は、燃料電池自動車の燃料ガスを貯留するタンクに限られず、上記と同様の構造を有しており、高圧のガスを貯留するタンクであってもよい。 The fiber bundle 104 is sandwiched and held between the liner 102 and the annular member 106 at both ends of the high-pressure tank 100 . The high-pressure tank manufacturing apparatus 10 is used to impregnate the fiber bundle 104 of the intermediate body 200, in which the fiber bundle 104 is wound around the liner 102 and held by the annular member 106, with resin. Therefore, the high-pressure tank manufacturing apparatus 10 can also be called an impregnation apparatus 10 . In the modified example, the application of the high-pressure tank 100 is not limited to a tank for storing fuel gas of a fuel cell vehicle, and may be a tank for storing high-pressure gas having the same structure as described above. .

（高圧タンク製造装置の構成）
図１に示すように、金型１１と、ピン部２０と、を備える。金型１１は、上型１２と下型１４とを備える。上型１２と下型１４とが閉じられると、金型１１内にキャビティ４０が形成される。キャビティ４０には、中間体２００が配置される。キャビティ４０は、中間体２００の外形よりも若干大きな空間を有する。このため、キャビティ４０に中間体２００が配置されている状態では、キャビティ４０と中間体２００との間に、溶融樹脂が流れる程度の小さな隙間が形成される。なお、図１及び図５では、見易さを優先して、キャビティ４０と中間体２００との隙間が大きく描かれている。 (Configuration of high-pressure tank manufacturing equipment)
As shown in FIG. 1, a mold 11 and a pin portion 20 are provided. The mold 11 has an upper mold 12 and a lower mold 14 . A cavity 40 is formed in the mold 11 when the upper mold 12 and the lower mold 14 are closed. An intermediate body 200 is placed in the cavity 40 . Cavity 40 has a space slightly larger than the outer shape of intermediate body 200 . Therefore, when the intermediate body 200 is placed in the cavity 40 , a small gap is formed between the cavity 40 and the intermediate body 200 to the extent that the molten resin flows. In addition, in FIGS. 1 and 5, the gap between the cavity 40 and the intermediate body 200 is drawn largely for ease of viewing.

上型１２には、ピン部２０が取り付けられている。ピン部２０は、複数のピン２２と、支持板２４と、アクチュエータ２６と、を備える。複数のピン２２のそれぞれは、円柱形状を有する。複数のピン２２は、上型１２において、キャビティ４０の表面から上方に延びる配置孔４２内に配置されている。なお、図１及び図５では、ピン２２と配置孔４２との隙間が大きく描かれているが、ピン２２と配置孔４２との間には、溶融樹脂が流入しない程度の隙間が設けられている。 A pin portion 20 is attached to the upper die 12 . The pin portion 20 includes a plurality of pins 22 , a support plate 24 and an actuator 26 . Each of the plurality of pins 22 has a cylindrical shape. The plurality of pins 22 are arranged in arrangement holes 42 extending upward from the surface of the cavity 40 in the upper mold 12 . 1 and 5, the gap between the pin 22 and the arrangement hole 42 is drawn large, but a gap is provided between the pin 22 and the arrangement hole 42 to the extent that the molten resin does not flow. there is

複数のピン２２は、上型１２において、中間体２００の長手方向（即ち図１の左右方向）に互いに間隔を有して並んでいる。複数のピン２２は、互いに平行に配置されている。複数のピン２２は、上端において、支持板２４に取り付けられている。支持板２４は、アクチュエータ２６によって、上型１２に対して上下方向に移動可能に配置されている。アクチュエータ２６は、油圧シリンダであってもよいし、エアシリンダ、サーボモータ等であってもよい。複数のピン２２は、支持板２４がアクチュエータ２６によって上下方向に移動されることによって、図１に示すような中間体２００に接触する接触位置と、図５に示すような中間体２００から離間する離間位置と、の間で上下方向に移動可能に配置されている。複数のピン２２が離間位置に配置されている状態では、複数のピン２２の下端面は、キャビティ４０の表面と同一面上に位置する。 The plurality of pins 22 are arranged in the upper die 12 at intervals in the longitudinal direction of the intermediate body 200 (that is, the left-right direction in FIG. 1). The multiple pins 22 are arranged parallel to each other. A plurality of pins 22 are attached to a support plate 24 at their upper ends. The support plate 24 is arranged to be vertically movable with respect to the upper die 12 by an actuator 26 . The actuator 26 may be a hydraulic cylinder, an air cylinder, a servomotor, or the like. When the support plate 24 is vertically moved by the actuator 26, the plurality of pins 22 are separated from the contact position where they contact the intermediate body 200 as shown in FIG. 1 and the intermediate body 200 as shown in FIG. It is arranged so as to be vertically movable between the spaced position and the spaced position. When the plurality of pins 22 are arranged at the separated positions, the lower end surfaces of the plurality of pins 22 are positioned flush with the surface of the cavity 40 .

下型１４には、ピン部３０が取り付けられている。ピン部３０は、複数のピン３２と、支持板３４と、アクチュエータ３６と、を備える。複数のピン３２のそれぞれは、複数のピン２２と同様の構成を有する。複数のピン３２は、下型１４において、キャビティ４０の表面から上方に延びる配置孔４４内に配置されている。ピン３２と配置孔４４との関係は、ピン２２と配置孔４２との関係と同一である。 A pin portion 30 is attached to the lower mold 14 . The pin portion 30 includes a plurality of pins 32 , a support plate 34 and an actuator 36 . Each of the plurality of pins 32 has a configuration similar to that of the plurality of pins 22 . The plurality of pins 32 are arranged in arrangement holes 44 extending upward from the surface of the cavity 40 in the lower mold 14 . The relationship between the pin 32 and the placement hole 44 is the same as the relationship between the pin 22 and the placement hole 42 .

複数のピン３２は、下端において、支持板２４と同様の支持板３４に取り付けられている。支持板３４は、アクチュエータ２６と同様のアクチュエータ３６によって、下型１４に対して上下方向に移動可能に配置されている。これにより、複数のピン３２は、支持板３４がアクチュエータ３６によって上下方向に移動されることによって、図１に示すような中間体２００に接触する接触位置と、図５に示すような中間体２００から離間する離間位置と、の間で上下方向に移動可能に配置されている。複数のピン３２が離間位置に配置されている状態では、複数のピン３２の下端面は、キャビティ４０の表面と同一面上に位置する。 A plurality of pins 32 are attached at their lower ends to a support plate 34 similar to support plate 24 . The support plate 34 is arranged to be vertically movable with respect to the lower die 14 by an actuator 36 similar to the actuator 26 . As a result, the support plate 34 is vertically moved by the actuator 36 so that the plurality of pins 32 are moved to contact positions where they contact the intermediate body 200 as shown in FIG. and a spaced position away from the . When the plurality of pins 32 are arranged at the separated positions, the lower end surfaces of the plurality of pins 32 are positioned flush with the surface of the cavity 40 .

図３に示すように、下型１４には、中間体２００の両端を支持する支持部１６を備える。支持部１６は、中間体２００の環状部材１０６を支持する。これにより、中間体２００が金型１１内で支持される。また、下型１４には、キャビティ４０に樹脂を充填するための複数の流路４６が配置されている。複数の流路４６は、金型１１外から金型１１内に注入される溶融樹脂を、キャビティ４０内に案内する溝形状を有する。 As shown in FIG. 3 , the lower mold 14 includes support portions 16 that support both ends of the intermediate body 200 . The support portion 16 supports the annular member 106 of the intermediate body 200 . Thereby, the intermediate 200 is supported within the mold 11 . In addition, a plurality of flow paths 46 for filling the cavity 40 with resin are arranged in the lower mold 14 . The plurality of flow paths 46 have a groove shape that guides the molten resin injected into the mold 11 from outside the mold 11 into the cavity 40 .

（高圧タンクの製造方法）
次いで、高圧タンク１００の製造方法を説明する。高圧タンク１００では、まず、ライナ１０２に繊維束１０４を配置して環状部材１０６で保持することによって、中間体２００が作製される。中間体２００は、ライナ１０２の中央部分１０２ａによって形成される中央部分２００ａと、ライナ１０２の先端部分１０２ｂによって形成される先端部分２００ｂと、を有する。中央部分２００ａは、円筒形状を有する。先端部分２００ｂは、中央部分２００ａから離間して、中間体２００の先端に向かって、徐々に細くなっている。 (Manufacturing method of high-pressure tank)
Next, a method for manufacturing the high-pressure tank 100 will be described. In the high-pressure tank 100 , first, the intermediate body 200 is produced by arranging the fiber bundle 104 in the liner 102 and holding it with the annular member 106 . Intermediate body 200 has a central portion 200 a formed by central portion 102 a of liner 102 and a distal portion 200 b formed by distal portion 102 b of liner 102 . The central portion 200a has a cylindrical shape. The tip portion 200b tapers away from the central portion 200a toward the tip of the intermediate body 200. As shown in FIG.

次いで、繊維束１０４に樹脂を含浸させる樹脂含浸処理が実行される。樹脂含浸処理では、図１に示すように、設備３００（例えばプレス装置）に取り付けられた金型１１に、中間体２００が配置されているキャビティ４０に樹脂を注入し、加圧することによって、繊維束１０４に樹脂を含浸させる、いわゆるＲＴＭ（Ｒｅｓｉｎ Ｔｒａｎｆｅｒ Ｍｏｌｄｉｎｇの略）成形が実行される。 Next, a resin impregnation process is performed to impregnate the fiber bundle 104 with a resin. In the resin impregnation treatment, as shown in FIG. 1, a resin is injected into a mold 11 attached to a facility 300 (for example, a press device) into a cavity 40 in which an intermediate body 200 is arranged, and pressure is applied to the fiber. So-called RTM (abbreviation of Resin Transfer Molding) molding is performed to impregnate the bundle 104 with resin.

図４に示すように、樹脂含浸処理では、まず、金型１１の上型１２と下型１４とを離間させて、下型１４のキャビティ４０の形状部分に中間体２００を配置し、支持部１６で中間体２００を固定する（Ｓ１２）。次いで、上型１２と下型１４とを閉じる。中間体２００が金型１１に配置される工程では、複数のピン２２、３２は、中間体２００が配置される前から、接触位置に配置されている。なお、変形例では、複数のピン２２、３２は、中間体２００が金型１１に配置される際には離間位置に配置され、中間体２００が金型１１に配置された後に接触位置に移動されてもよい。複数のピン２２、３２は、中間体２００の中央部分２００ａに接触する位置に配置される一方、先端部分２００ｂに接触する位置には配置されない。 As shown in FIG. 4, in the resin impregnation treatment, first, the upper mold 12 and the lower mold 14 of the mold 11 are separated from each other, and the intermediate body 200 is arranged in the cavity 40-shaped portion of the lower mold 14, followed by At 16, the intermediate 200 is fixed (S12). Next, the upper mold 12 and the lower mold 14 are closed. In the process of arranging the intermediate 200 in the mold 11, the pins 22, 32 are arranged in contact positions before the intermediate 200 is arranged. In the modified example, the plurality of pins 22 and 32 are arranged at the separated positions when the intermediate 200 is arranged in the mold 11, and are moved to the contact positions after the intermediate 200 is arranged in the mold 11. may be The plurality of pins 22, 32 are positioned to contact the central portion 200a of the intermediate body 200, but are not positioned to contact the tip portion 200b.

次いで、キャビティ４０内に、溶融樹脂が注入される（Ｓ１４）。注入される樹脂は、例えば、エポキシ樹脂である。キャビティ４０内に樹脂が充填されると、キャビティ４０内の樹脂を所定圧力まで昇圧する（Ｓ１６）。次いで、キャビティ４０内の樹脂が所定圧力まで昇圧されると、所定圧力で、所定期間保持される（Ｓ１８）。これにより、樹脂が繊維束１０４に含浸される。 Next, molten resin is injected into the cavity 40 (S14). The injected resin is, for example, an epoxy resin. When the cavity 40 is filled with the resin, the pressure of the resin in the cavity 40 is increased to a predetermined pressure (S16). Next, when the resin in the cavity 40 is pressurized to a predetermined pressure, the predetermined pressure is maintained for a predetermined period (S18). Thereby, the fiber bundle 104 is impregnated with the resin.

樹脂が保圧されて含浸が進行すると、樹脂が徐々に硬化していく。Ｓ２０では、樹脂が完全に硬化する前に、複数のピン２２、３２を、接触位置から離間位置まで移動させる。この結果、硬化前の樹脂が、複数のピン２２、３２が移動することによって形成された空間に流入する。これにより、複数のピン２２、３２が接触していた位置からも、樹脂を含浸させることができる。 As the resin is held under pressure and the impregnation proceeds, the resin gradually hardens. In S20, the plurality of pins 22, 32 are moved from the contact position to the separated position before the resin is completely cured. As a result, the uncured resin flows into the space formed by the movement of the pins 22 and 32 . Thereby, the resin can be impregnated even from the positions where the plurality of pins 22 and 32 are in contact.

次いで、樹脂の硬化後（Ｓ２０）、上型１２と下型１４とを離間させ、成形済みの高圧タンク１００を、金型１１から取り出して（Ｓ２２）、樹脂含浸処理を終了する。 After the resin is cured (S20), the upper mold 12 and the lower mold 14 are separated from each other, and the molded high-pressure tank 100 is taken out from the mold 11 (S22) to complete the resin impregnation process.

（効果）
中間体２００は、樹脂製のライナ１０２が歪んで成形されることに起因して、設計値に対して歪んだ状態で作製される場合がある。中間体２００が金型１１に配置された段階では、中間体２００は、支持部１６によって支持されている。中間体２００が歪んでいない場合には、キャビティ４０の表面と中間体２００との間には、溶融樹脂が流入するように、若干の隙間が形成される。しかしながら、実際には中間体２００が歪んでいるために、支持部１６によって両端が支持されている状態では、中間体２００の中央部分２００ａが曲がってしまう。なお、中間体２００とキャビティ４０の表面との接触を避けるために、中間体２００とキャビティ４０の表面との隙間を大きくすると、含浸のために必要な樹脂量が増加してしまう。 (effect)
The intermediate body 200 may be manufactured in a distorted state with respect to the design value due to the distorted molding of the resin liner 102 . At the stage in which the intermediate 200 is arranged on the mold 11 , the intermediate 200 is supported by the support portion 16 . When the intermediate body 200 is not distorted, a slight gap is formed between the surface of the cavity 40 and the intermediate body 200 so that the molten resin can flow. However, since the intermediate body 200 is actually distorted, the central portion 200a of the intermediate body 200 is bent when both ends thereof are supported by the supporting portions 16 . If the gap between the intermediate body 200 and the surface of the cavity 40 is increased in order to avoid contact between the intermediate body 200 and the surface of the cavity 40, the amount of resin required for impregnation increases.

高圧タンク製造装置１０では、キャビティ４０に突出するピン部２０、３０が配置されている。この構成によれば、ピン部２０、３０によって、曲がった中間体２００がキャビティ４０の表面に接触しないように支持することができる。これにより、中間体２００とキャビティ４０の表面との隙間が維持される。この結果、図３に示すように、流路４６からキャビティ４０内に流入する溶融樹脂が、中間体２００とキャビティ４０との間を流れて、中間体２００の表面の全体に行き渡る。 In the high-pressure tank manufacturing apparatus 10, the pin portions 20 and 30 projecting into the cavity 40 are arranged. According to this configuration, the bent intermediate body 200 can be supported by the pin portions 20 and 30 so as not to contact the surface of the cavity 40 . Thereby, the gap between the intermediate body 200 and the surface of the cavity 40 is maintained. As a result, as shown in FIG. 3 , the molten resin flowing into cavity 40 from channel 46 flows between intermediate body 200 and cavity 40 and spreads over the entire surface of intermediate body 200 .

複数のピン２２、３２は、流路４６から離間して配置されている。また、複数のピン２２、３２は、キャビティ４０内に互いに離間して配置されている。このため、中間体２００とキャビティ４０との間を流れる溶融樹脂は、複数のピン２２、３２に遮られることなく、複数のピン２２、３２を越えて流れることができる。これにより、複数のピン２２、３２によって、溶融樹脂の流れが阻害される事態を回避することができる。なお、変形例では、溶融樹脂をキャビティ４０内に注入する流路は、流路４６に限定されない。例えば、流路は、上型１２においてキャビティ４０の上方に配置されていてもよい。また、流路の本数に制限は無い。いずれの流路であっても、ピン部２０、３０は、キャビティ４０内を流れる溶融樹脂の流れを妨げるような配置及び形状を有していない。 A plurality of pins 22 , 32 are spaced apart from channel 46 . Also, the plurality of pins 22 , 32 are spaced apart from each other within the cavity 40 . Therefore, the molten resin flowing between the intermediate body 200 and the cavity 40 can flow over the pins 22 and 32 without being blocked by the pins 22 and 32 . As a result, it is possible to prevent the flow of the molten resin from being obstructed by the plurality of pins 22 and 32 . In addition, in the modified example, the channel for injecting the molten resin into the cavity 40 is not limited to the channel 46 . For example, the channels may be arranged above the cavity 40 in the upper mold 12 . Also, the number of flow paths is not limited. In either channel, the pin portions 20 and 30 do not have an arrangement and shape that hinders the flow of the molten resin flowing through the cavity 40 .

また、複数のピン２２は、同一の方向（即ち下方向）に向かって、キャビティ４０の表面から突出している。この構成によれば、複数のピン２２によって、中間体２００の歪みを抑えることができる。これにより、中間体２００が複数のピン２２が突出している方向に曲がって、キャビティ４０の表面に接触することを抑制することができる。複数のピン３３も同様である。 Also, the plurality of pins 22 protrude from the surface of the cavity 40 in the same direction (that is, downward). According to this configuration, the plurality of pins 22 can suppress distortion of the intermediate body 200 . Thereby, it is possible to prevent the intermediate body 200 from bending in the direction in which the plurality of pins 22 protrude and coming into contact with the surface of the cavity 40 . A plurality of pins 33 are also the same.

複数のピン２２、３２は、溶融樹脂が硬化する前に、接触位置から離間位置まで移動することによって、複数のピン２２、３２が接触していた位置からも、樹脂を含浸させることができる。これにより、樹脂が適切に含浸されている部分が発生することを抑制することができる。 By moving the pins 22, 32 from the contact position to the separation position before the molten resin hardens, the pins 22, 32 can be impregnated with the resin even from the positions where the pins 22, 32 were in contact. As a result, it is possible to suppress the occurrence of portions that are appropriately impregnated with the resin.

複数のピン２２、３２は、中間体２００の中央部分２００ａに配置される一方、中間体２００の先端部分２００ｂに配置されない。ライナ１０２では、円筒形状の中央部分１０２ａで歪みが発生しやすい一方、徐々に縮径する形状を有する先端部分１０２ｂでは歪みが発生しにくい。高圧タンク製造装置１０では、中央部分２００ａに接触するように複数のピン２２、３２を配置する一方、先端部分１０２ｂに接触するピンは配置されない。これにより、効果的な位置にピン２２、３２を配置することによって、ピンの個数を抑制することができる。 A plurality of pins 22 , 32 are arranged in the central portion 200 a of the intermediate body 200 while not arranged in the distal portion 200 b of the intermediate body 200 . In the liner 102, the cylindrical center portion 102a is likely to be distorted, while the tip portion 102b, which has a gradually decreasing diameter, is less likely to be distorted. In the high-pressure tank manufacturing apparatus 10, the plurality of pins 22, 32 are arranged to contact the central portion 200a, while no pin is arranged to contact the tip portion 102b. Accordingly, by arranging the pins 22 and 32 at effective positions, the number of pins can be suppressed.

なお、複数のピン２２、３２は、円柱形状に限られない。例えば、複数のピン２２、３２のうち、中間体２００に接触する部分は、湾曲面、例えば部分的な球面形状を有していてもよい。ピン２２、３２と中間体２００との接触面積を小さくすることによって、ピン２２、３２によって溶融樹脂と中間体２００との接触が妨げられることを回避することができる。この結果、例えば、複数のピン２２、３２を離間位置に移動させずに、樹脂を適切に含浸させ得る。 Note that the plurality of pins 22 and 32 are not limited to the columnar shape. For example, the portions of the plurality of pins 22, 32 that contact the intermediate body 200 may have curved surfaces, such as a partially spherical shape. By reducing the contact area between the pins 22 , 32 and the intermediate body 200 , it is possible to prevent the pins 22 , 32 from interfering with the contact between the molten resin and the intermediate body 200 . As a result, for example, the resin can be properly impregnated without moving the pins 22 and 32 to the separated positions.

一方、複数のピン２２、３２の形状を、中間体２００との接触面積が大きくなるような形状にしてもよい。例えば、複数のピン２２、３２の形状を、中間体２００の表面形状に沿った形状に形成してもよい。ピン２２、３２と中間体２００との接触面積を大きくすることによって、中間体２００の表面、即ち繊維束１０４がピン２２、３２から受ける接触圧力を低減させることができる。これにより、繊維束１０４が、ピン２２、３２との接触圧力によって、窪んでしまうことを抑制することができる。 On the other hand, the plurality of pins 22 and 32 may be shaped so as to increase the contact area with the intermediate body 200 . For example, the plurality of pins 22 and 32 may be shaped to conform to the surface shape of the intermediate body 200 . By increasing the contact area between the pins 22 , 32 and the intermediate body 200 , the contact pressure that the surface of the intermediate body 200 , that is, the fiber bundle 104 receives from the pins 22 , 32 can be reduced. Thereby, it is possible to suppress the fiber bundle 104 from being depressed due to the contact pressure with the pins 22 and 32 .

複数のピン２２、３２の形状は、同一でなくてもよい。例えば、中間体２００の歪み量が大きい箇所には、接触圧力を低減するために接触面積が大きい形状のピンを配置する一方、中間体２００の歪み量が小さい箇所には、接触面積が小さい形状のピンを配置してもよい。この場合、接触面積が小さいピンは、金型１１に対して固定されていてもよい。 The shapes of the pins 22, 32 may not be the same. For example, a pin having a shape with a large contact area is arranged at a location where the amount of distortion of the intermediate body 200 is large in order to reduce the contact pressure, while a pin having a shape with a small contact area is arranged at a location where the amount of distortion of the intermediate body 200 is small. pins may be placed. In this case, the pin with a small contact area may be fixed with respect to the mold 11 .

以上、本発明の実施形態について詳細に説明したが、これらは例示に過ぎず、特許請求の範囲を限定するものではない。特許請求の範囲に記載の技術には、以上に例示した具体例を様々に変形、変更したものが含まれる。 Although the embodiments of the present invention have been described in detail above, they are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

また、本明細書または図面に説明した技術要素は、単独であるいは各種の組合せによって技術的有用性を発揮するものであり、出願時請求項記載の組合せに限定されるものではない。また、本明細書または図面に例示した技術は複数目的を同時に達成するものであり、そのうちの一つの目的を達成すること自体で技術的有用性を持つものである。 In addition, the technical elements described in this specification or in the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the techniques exemplified in this specification or drawings achieve multiple purposes at the same time, and achieving one of them has technical utility in itself.

１０：高圧タンク製造装置（含浸装置）、１１：金型、１２：上型、１４：下型、１６：支持部、２０、３０：ピン部、２２、３２：ピン、２６、３６：アクチュエータ、４０：キャビティ、１００：高圧タンク、２００：中間体、２００ａ：中央部分、２００ｂ：先端部分 10: high-pressure tank manufacturing device (impregnation device), 11: mold, 12: upper mold, 14: lower mold, 16: support part, 20, 30: pin part, 22, 32: pin, 26, 36: actuator, 40: Cavity, 100: High pressure tank, 200: Intermediate body, 200a: Central part, 200b: Tip part

Claims (5)

ライナに繊維束が巻回されている中間体が配置されるキャビティを有する金型と、
前記金型に対して移動可能に配置されており、前記キャビティの表面から前記キャビティ内に突出して前記キャビティに配置される前記中間体に接触する接触位置と、前記キャビティに配置される前記中間体から離間する離間位置と、の間で移動するピン部と、を備え、
前記ピン部は、前記接触位置で、前記キャビティに流入される溶融樹脂が前記キャビティの前記表面と前記中間体との間で前記ピン部を越えて流動可能に配置されている、高圧タンク製造装置。 a mold having a cavity in which an intermediate having a fiber bundle wound around a liner is placed;
a contact position which is arranged movably with respect to the mold and protrudes from the surface of the cavity into the cavity to contact the intermediate body arranged in the cavity; and the intermediate body arranged in the cavity. A spaced position spaced apart from and a pin portion that moves between
The high-pressure tank manufacturing apparatus, wherein the pin portion is arranged at the contact position so that the molten resin flowing into the cavity can flow beyond the pin portion between the surface of the cavity and the intermediate body. . 前記ピン部は、前記キャビティの前記表面から同一の方向に向かって突出している複数のピンであって、互いに離間して配置されている前記複数のピンを備える、請求項１に記載の高圧タンク製造装置。 2. The high-pressure tank according to claim 1, wherein said pin portion comprises a plurality of pins protruding in the same direction from said surface of said cavity, said pins being spaced apart from each other. manufacturing device. 前記中間体は、前記中間体の長手方向に延びる筒状の中央部分と、前記中央部分の両端のそれぞれにおいて先端に向かって徐々に細くなる先端部分と、を備え、
前記ピン部は、前記中央部分に接触する、請求項１又は２に記載の高圧タンク製造装置。 The intermediate body comprises a cylindrical central portion extending in the longitudinal direction of the intermediate body, and tip portions tapering gradually toward the tip at each of both ends of the central portion,
3. The high-pressure tank manufacturing apparatus according to claim 1, wherein said pin portion contacts said central portion. 請求項１から３のいずれか一項に記載の高圧タンク製造装置のキャビティに、ライナに繊維束が巻回されている中間体を配置する配置工程であって、ピン部が接触位置に配置される前記配置工程と、
前記キャビティに前記溶融樹脂を注入して、前記溶融樹脂が前記キャビティの前記表面と前記中間体との間において前記ピン部を越えて流動させて前記キャビティ内に前記溶融樹脂を充填する充填工程と、
前記キャビティ内の前記溶融樹脂を前記繊維束に含浸させる含浸工程と、
前記ピン部を接触位置から離間位置に移動させる移動工程と、を備える、高圧タンク製造方法。 A placement step of placing an intermediate having a fiber bundle wound around a liner in a cavity of the high-pressure tank manufacturing apparatus according to any one of claims 1 to 3, wherein the pin portion is placed at a contact position. and
a filling step of injecting the molten resin into the cavity and allowing the molten resin to flow between the surface of the cavity and the intermediate body beyond the pin portion to fill the cavity with the molten resin; ,
an impregnation step of impregnating the fiber bundle with the molten resin in the cavity;
and a moving step of moving the pin portion from the contact position to the separated position. 前記移動工程では、前記キャビティ内において前記溶融樹脂が硬化する前に、前記ピン部を、前記接触位置から前記離間位置に移動させる、請求項４に記載の高圧タンク製造方法。 5. The high-pressure tank manufacturing method according to claim 4, wherein in said moving step, said pin portion is moved from said contact position to said separated position before said molten resin hardens in said cavity.
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