WO2002073072A1 - Joint - Google Patents
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- Publication number
- WO2002073072A1 WO2002073072A1 PCT/JP2002/001196 JP0201196W WO02073072A1 WO 2002073072 A1 WO2002073072 A1 WO 2002073072A1 JP 0201196 W JP0201196 W JP 0201196W WO 02073072 A1 WO02073072 A1 WO 02073072A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gasket
- adhesive
- mounting member
- sheet
- resin film
- Prior art date
Links
Classifications
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
- F16J15/123—Details relating to the edges of the packing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
- H01M8/0278—O-rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
- H01M8/0284—Organic resins; Organic polymers
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/085—Flat gaskets without fold over
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/0856—Flat gaskets with a non-metallic coating or strip
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- 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
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a gasket, which is a kind of a sealing device, and more particularly, to a gasket suitable for use as a gasket for a fuel cell, a gasket for a top cover in a hard disk drive (HDD), and the like.
- a gasket which is a kind of a sealing device, and more particularly, to a gasket suitable for use as a gasket for a fuel cell, a gasket for a top cover in a hard disk drive (HDD), and the like.
- a fuel cell gasket used for a fuel cell a gasket alone type, a separator type or a reaction electrode (MEA) -type type gasket has been conventionally known, each of which is mounted at a predetermined position of a cell.
- a sealed fluid such as a fuel gas, an oxidizing gas or a refrigerant is sealed.
- the baking method using integral molding involves directly molding a gasket (gasket main body) 101 onto the mating member 102 such as a separator and a reaction electrode section.
- the bonding method uses a gasket (gasket body) 101 that has been formed into a product shape by itself beforehand, using an adhesive 1 It is to be attached to the mating attachment member 102 using 03.
- the material of the separator is a low-strength material such as carbon
- a low-pressure molding technique is required so that the separator is not cracked by a mold clamping force, a molding pressure, or the like when integrally molding the gasket. Also, since the separator cannot be strongly pressed down, a large amount of molding burrs are generated.
- the present invention has good handleability as a gasket used as a gasket for a fuel cell or a gasket for an HDD, and even when a mating member such as a separator is a low-strength material or a thin plate.
- An object of the present invention is to provide a gasket in which a mounting member and a gasket can be easily integrated, and the mounting workability is good. Disclosure of the invention
- a gasket according to claim 1 of the present invention comprises: a sheet-like gasket attachment member having a sticking function on one side; and a rubber-like elastic member integrated with the sheet-like gasket attachment member.
- a gasket main body made of a material, and attached to the mating attachment member by an attaching function of the sheet-like gasket attachment member.
- the gasket according to claim 2 of the present invention is the gasket according to claim 1, wherein the gasket body is integrally formed on the other surface of the sheet-like gasket mounting member using an adhesive. It is characterized by the following.
- the gasket according to claim 3 of the present invention is the gasket according to claim 1, wherein the gasket main body is made of an adhesive rubber, and the sheet-like gasket attaching member is formed by using the adhesive property. It is characterized by being integrally molded on the other surface.
- the gasket according to claim 4 of the present invention is the gasket according to claim 1, wherein the gasket main body is integrally formed on both sides of the end portion of the sheet-like gasket mounting member using an adhesive. It is characterized by having.
- the gasket according to claim 5 of the present invention is the gasket according to claim 1, wherein the gasket main body is made of an adhesive rubber, and the adhesive property of the gasket body is used for the sheet-like gasket mounting member. It is characterized by being integrally molded on both ends.
- the gasket according to claim 6 of the present invention is the gasket according to claim 4 or 5, wherein an adhesive is attached to one surface of the sheet-like gasket mounting member, and the release film is The gasket is detachably attached, and a portion from which the release film is peeled off at the time of the attaching operation is provided over the entire circumference of the gasket main body.
- the gasket according to claim 7 of the present invention is the gasket according to claim 4 or 5, wherein an adhesive is attached to one surface of the sheet-like gasket mounting member, and the release film is The gasket is characterized by being detachably attached, and having portions on the periphery of the gasket main body where the release film is peeled off at the time of an attaching operation.
- the gasket according to claim 8 of the present invention includes: a rubber-only gasket main body; and a sheet-like gasket mounting member provided around the periphery of the gasket main body. Characterized in that it is attached to the mating attachment member by a sticking function provided on one surface.
- the gasket according to claim 9 of the present invention is the gasket according to claim 8, wherein the cross-sectional shape of the gasket main body is an O-ring shape. It is characterized by the following.
- a gasket according to claim 10 of the present invention is characterized in that, in the gasket according to claim 8, the gasket body has a lip-shaped cross section.
- the gasket according to claim 11 of the present invention is the gasket according to any one of claims 1 to 10 described above, wherein the gasket according to any one of claims 1 to 10 is a two-sided gasket.
- the gasket according to claim 12 of the present invention is the gasket according to claim 11, wherein the sheet-like gasket mounting member is attached to one surface of the mating mounting member, It has a part to be attached to the other surface side and a connecting part connecting the two parts integrally, and is bent at the connecting part at the time of attachment.
- the gasket according to claim 13 of the present invention is the gasket according to claim 12, wherein the bending position specifying portion such as a notch or a perforated line for facilitating bending of a connecting portion is provided. It is characterized by being provided in a part.
- gasket according to claim 14 of the present invention is the gasket according to any one of claims 1 to 13 described above, wherein the mating attachment member is a separator for a fuel cell. It is characterized by the following.
- the gasket according to claim 15 of the present invention is the gasket according to any one of claims 1 to 13 described above, wherein the mating attachment member is a reaction electrode portion for a fuel cell. Alternatively, it is an electrolyte membrane which is a component thereof.
- gasket according to claim 16 of the present invention has the above-mentioned claims.
- gasket according to claim 17 of the present invention is the gasket according to any one of claims 1 to 7, wherein the gasket is provided on both surfaces of an electrolyte membrane for a fuel cell. Each gasket is provided with two or more sealing lips.
- the gasket according to claim 18 of the present invention is the gasket according to any one of claims 1 to 7, wherein the gasket is provided on both surfaces of an electrolyte membrane for a fuel cell. Each gasket has a squeeze shape that does not have a seal lip. Further, the gasket according to claim 19 of the present invention is the gasket according to any one of claims 1 to 7, wherein the gasket is provided on both surfaces of an electrolyte membrane for a fuel cell. Each of the gaskets has one or more seal lips provided thereon, and the other gasket has a squeeze shape having no seal lip.
- a gasket according to claim 20 of the present invention is the gasket according to any one of claims 1 to 7, wherein the gasket is an electrolyte membrane for a fuel cell. And a gasket is provided with one seal lip and the other gasket is provided with two or more seal lips.
- the gasket main body is integrated with the sheet-like gasket mounting member and is post-adhered to the mating mounting member via the sheet-like gasket mounting member.
- the mounting member There is no need to attach the mounting member to the mold. Therefore, even if the mating member is made of a low-strength material or a thin plate, there is no danger of cracking or the like, so that the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the molding die instead of the mating mounting member is made of, for example, a resin film, there is no fear of cracking or the like. Therefore, it is possible to suppress the generation of a large amount of molding burrs.
- the mating attachment member may be, for example, a fuel cell separator (Claim 14), a fuel cell reaction electrode or an electrolyte membrane that is a component thereof (Claim 15) or an HDD top cover. (Claim 16), whereby a separator body type, a reaction electrode part or an electrolyte membrane integrated type or a top cover integrated type gasket is manufactured.
- the reaction electrode part refers to a reaction electrode, an electrolyte membrane and an MEA in which they are integrated, and the reaction electrode part and the like, in addition to these, a gas diffusion layer, a separator, a cooling plate, and other fuel cells.
- a gas diffusion layer a gas diffusion layer
- a separator a separator
- a cooling plate a cooling plate
- other fuel cells a gas diffusion layer
- Electrolyte membranes are sometimes referred to as ion exchange membranes.
- the gasket main body is formed integrally with the other surface of the sheet-like gasket mounting member using an adhesive.
- the member has a reinforcing effect on the gasket main body, so that deformation of the gasket as a whole during handling can be suppressed to a relatively small value.
- the gasket main body is integrated with the sheet-like gasket mounting member and is post-adhered to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is formed into a molding die when forming the gasket main body. No need to attach.
- the mating member is made of a low-strength material or a thin plate, there is no risk of cracking, and the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the forming die instead of the mating mounting member is made of, for example, a resin film, the mold clamping force should be set large because there is no fear of cracking. Therefore, it is possible to suppress generation of a large amount of molding burrs.
- the gasket main body is made of adhesive rubber, and the gasket body is integrated with the other surface of the sheet-like gasket mounting member by using the adhesiveness. Since the gasket is formed, the sheet-like gasket mounting member also functions to reinforce the gasket main body, so that the deformation of the gasket as a whole during handling can be relatively suppressed. Also, since the gasket main body is integrated with the sheet-like gasket mounting member and is post-adhered to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is molded when the gasket main body is formed.
- the mating member is made of a low-strength material or a thin plate, there is no danger of cracking or the like, so that the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the molding die instead of the mating mounting member is a resin film, for example, there is no fear of cracking, etc. Therefore, it is possible to suppress the generation of a large amount of molding burrs.
- the gasket body made of adhesive rubber is adhered to the sheet-like gasket mounting member without using an adhesive due to its adhesiveness.
- the sheet-like gasket mounting member also has a reinforcing effect on the gasket body, and is therefore handled as a whole gasket. Deformation at the time can be suppressed relatively small. Also, since the gasket main body is integrated with the sheet-like gasket mounting member and is post-adhered to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is mounted on the molding die when the gasket main body is formed. No need.
- the mating member is made of a low-strength material or a thin plate, there is no risk of cracking, and the mating member and the gasket can be easily integrated.
- a sheet-like gasket mounting member that is mounted on a molding die instead of the mating mounting member, if this is a resin film, for example, there is no fear of cracking or the like. Therefore, it is possible to suppress generation of a large amount of molding burrs.
- the gasket main body is integrally molded on both sides of the end portion of the sheet-like gasket mounting member, a double-sided gasket is formed. Therefore, the gasket main body comes into direct contact with the mating mounting member.
- the gasket main body is made of an adhesive rubber, and the adhesiveness is used to make the gasket main body of the gasket mounting member have both ends. Since the gasket mounting member is formed integrally with the gasket, the sheet-like gasket mounting member also functions to reinforce the gasket main body, so that the deformation of the gasket as a whole during handling can be relatively suppressed. In addition, the gasket body is integrated with the sheet-like gasket mounting member and the sheet-like gasket is attached. Since the post-adhesion is performed to the mating mounting member via the mounting member, there is no need to mount the mating mounting member on the mold when forming the gasket body.
- the mating member is made of a low-strength material or a thin plate, there is no danger of cracking or the like, so that the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the forming die instead of the mating mounting member is made of, for example, a resin film, there is no fear of cracking or the like. Therefore, it is possible to suppress generation of a large amount of molding burrs.
- the gasket main body is integrally formed on both sides of the end of the sheet-like gasket mounting member, a double-sided gasket is formed. Therefore, the gasket main body comes into direct contact with the other mounting member. It is possible to reliably seal between the mounting member.
- the gasket body made of adhesive rubber is adhered to the sheet-like gasket mounting member without using an adhesive due to its adhesiveness.
- the adhesive is attached to one surface of the sheet-like gasket attachment member and the release film is detachably attached, the adhesive is protected by the release film before the gasket is attached. It is possible to attach the gasket to the mating member by a simple operation such as peeling off the release film, positioning and pressing the gasket during the mounting operation.
- the part where the release film is peeled off during the installation work is provided over the entire circumference of the gasket, but if the required adhesive strength is secured even with a small adhesive area, this part should be placed around the gasket. It may be provided in some places (Claim 7).
- the rubber-only gasket main body and the sheet-like gasket mounting member provided on the periphery of the gasket main body are provided. Since the integrated gasket is formed and the sheet-like gasket mounting member has a sticking function on one side, the gasket mounting operation requires only a simple operation of positioning and pressing the gasket. One Thus, the gasket can be attached to the mating attachment member.
- the cross-sectional shape of the rubber-only type gasket body is preferably an O-ring shape (Claim 9) or a lip shape (Claim 10). Since it is possible to form the gasket, it is possible to reliably seal between the gasket and the mating attachment member.
- one gasket proposed in the present application has the following contents.
- the gasket is coated with an adhesive (adhesive) on one side.
- a gasket that seals a sealed fluid such as a fuel gas or an oxidizing gas between an MEA used for a fuel cell and a separator or a gasket that seals a sealed fluid such as a refrigerant between separators or the like.
- a gasket that integrates an adhesive rubber directly into a sheet-like gasket mounting member such as a resin film coated with an adhesive (adhesive) on one side, and is integrated with a mating mounting member such as a separator.
- a gasket that seals a sealed fluid such as fuel gas or oxidizing gas between the MEA used for the fuel cell and the separator, or a gasket that seals a sealed fluid such as a refrigerant between the separators, etc.
- An MEA-body gas in which the gasket of (1) or (2) above is integrated with the MEA using a film adhesive (adhesive).
- a gasket in which the gasket described in the above (1) or (2) is integrated with the MEA using an adhesive (adhesive) for a sheet-like gasket mounting member such as a film is integrated with the gasket of (1) or (2) above using a film adhesive (adhesive).
- a resin film such as polyethylene terephthalate, polyethylene naphthalate or polyimide is used.
- a resin film is attached to the separator or MEA to form a separator-type or MEA-type gasket.
- the gasket material is integrally molded via an adhesive, silicone rubber, fluoro rubber, turile rubber, butyl rubber, EPDM, or the like is used.
- any material can be used for the adhesive rubber that can be directly bonded to the resin film.
- a silicone rubber material Shin-Etsu Chemical's X-34_1277 A / B (trade name) Etc. are preferably used.
- the resin film a resin film that can withstand the above-mentioned temperature at which rubber can be molded at about 100 to 200 ° C is selected, and the film thickness is 10 to 500 jum, preferably. Use 50 to 150 / im.
- general-purpose films such as polyethylene terephthalate, polyethylene naphthalate, polyimide-based, ester-based, amide-based, or imid-based films can be used. Diamy 100 ⁇ m (trade name) and the like are preferably used.
- the adhesive should be silicone-based, and the coating thickness should be 100 / im or less, preferably 10 to 50 ⁇ .
- the resin film and the separator are integrated by thermocompression bonding using this adhesive (adhesive).
- the adhesive for example, Toshiba silicone product TSR 1512 (trade name) can be suitably used.
- the sheet-like gasket mounting member such as a resin film serves as a reinforcing material, it is easy to handle, and since the sheet-like gasket mounting member such as a resin film has an adhesive (adhesive).
- the step of applying the adhesive (adhesive) can be eliminated, and the quality can be stabilized.
- the confirmation test of the adhesion (tackiness) with respect to the separator or the ME conducted by the inventors of the present invention showed the results shown in FIG.
- one gasket proposed in the present application has the following contents.
- the gasket has a shape that completely covers one end face of the three-layer film. And the part near the opposite end face is three layers 3 is an exposed gasket.
- the gasket in which sealing surfaces are located on both sides of a film having a three-layer structure of a sheet-like gasket mounting member such as a resin film, an adhesive (adhesive), and a release film, the gasket may be formed on one end face of the three-layer film. The gasket is completely covered, and the part near the opposite end face is the gasket where the three-layer film is exposed.
- the gasket has a shape that completely covers one end face of the three-layer film.
- the part near the opposite end face is a gasket with the exposed three-layer film, and the release film is peeled off only the part near the exposed end face of the three-layer film, and the adhesive (adhesive) is used.
- Gasket that can expose Or, in a gasket in which the sealing surfaces are located on both sides of a film having a three-layer structure of a sheet-like gasket mounting member such as a resin film, an adhesive (adhesive), and a release film, the gasket is one end face of the three-layer film. The part close to the opposite end face is a gasket with the three-layer film exposed, and the release film is peeled off only the part close to the exposed end face of the three-layer film. A gasket that can expose the adhesive (adhesive).
- a gasket in which the end of the three-layer film of the above (7) or (8) that is not covered with rubber is the entire periphery of the gasket (disposed on the entire periphery).
- the products in the above 5 items also include products used for HDDs.
- An integrated product of a mating attachment member such as a fuel cell separator and a gasket, in which the release film near the side end surface is partially peeled off and attached to a mating attachment member such as a separator.
- a seal having a three-layer structure of a resin film, an adhesive (adhesive), and a release film is provided on both surfaces of the film.
- the gasket where the surface is located, the gasket is made to completely cover one end face of the three-layer film, and the other end face is made to have a shape in which the three-layer film is exposed.
- the adhesive (adhesive) is used to attach the separator to the separator, and the fuel cell separator And a gasket integrated product is completed.
- the end face of the three-layer film not covered with rubber is the entire periphery of the gasket
- a case where the end surface is dispersed on the periphery of the gasket is used as the material of the film.
- the rubber is preferably an adhesive material that reacts with the resin film during vulcanization and chemically bonds, and may be either liquid rubber or solid rubber.
- a gasket capable of obtaining a high sealing property without depending on the material or surface roughness of a mating mounting member such as a separator is provided. Further, it is possible to provide a product capable of improving the difficulty of positioning when assembling a gasket to a mating attachment member such as a separator.
- a resin film integrated type with a three-layer structure consisting of a resin film, an adhesive (adhesive), and a release film integrated in a part of rubber only
- a gasket whose gasket has an O-ring cross section Or, in a gasket used for fuel cells, etc., a three-layer film consisting of a sheet-like gasket mounting member such as a resin film, an adhesive (adhesive), and a release film was integrated into a part of rubber only.
- a resin film integrated type with a three-layer structure consisting of a resin film, an adhesive (adhesive), and a release film in a part of rubber only
- a gasket whose cross-sectional shape is a lip shape.
- a film having a three-layer structure of a sheet-like gasket mounting member such as a resin film, an adhesive (adhesive), and a release film is integrated with a part of the rubber only.
- the gasket having the above structure is also used as a HDD gasket.
- (2 1) A three-layer film consisting of a resin film, an adhesive (adhesive) and a release film was inserted into a part of the rubber-only gasket, and only a part of the release film was peeled off. Integrated gasket for fuel cells. Alternatively, a part of a rubber-only gasket is inserted with a three-layer film consisting of a sheet-like gasket attachment member such as a resin film, an adhesive (adhesive), and a release film. A gasket in which only part of the film has been removed.
- Resin film and adhesive (viscosity) 6 Adhesive) and a film with a three-layer structure of a release film are inserted, only a part of the release film is peeled off, and the part where the release film is peeled off is bonded to a separator or an electrolyte membrane.
- Separator type gasket for fuel cells or gasket with integrated electrolyte membrane for fuel cells Alternatively, a part of a rubber-only gasket is inserted with a film having a three-layered structure of a sheet-like gasket mounting member such as a resin film, an adhesive (adhesive), and a release film, and one of the above release films is inserted.
- a gasket made by peeling off only the part and peeling off the release film and the other mounting member such as a separator or electrolyte membrane.
- a three-layer structure of a resin film, an adhesive (adhesive), and a release film is provided on a part of a rubber-only gasket. Insert structured film.
- silicone rubber, EPM or fluoro rubber is preferably used, and the hardness is preferably Hs 20 to 70.
- the cross-sectional shape of the gasket may be designed in consideration of the pressure conditions of the fluid to be sealed and the reaction force of the rubber. For example, a circular shape or a lip shape is used. PET, PEN, PI, or the like is used for the resin film, and its thickness is preferably from 50 ⁇ to 100 ⁇ m.
- One side of the film is coated with an adhesive (adhesive) and is protected by a release film.
- This three-layer structure film is put into several places on the gasket lay in the mold at the time of rubber molding, and is integrally molded. Since the main cross section of the gasket is formed solely of rubber, the sealing properties and compression set do not deteriorate when the resin film is inserted.
- the adhesive is exposed by peeling off the release film of the three-layer film, so that it can be fixed to the separator or the electrolyte membrane by sticking at several places. This improves handling when assembling the gasket.
- the sticking portion and the gasket portion are separated from each other, so that the sealing performance can be improved, and the sticking portion can be improved.
- the gasket is easy to attach because it is not the whole surface but several places. 7 There is an effect that there is no need to apply an adhesive (adhesive) when integrating the gasket with the mating mounting member such as a separator.
- the gasket according to claim 11 of the present invention having the above-mentioned configuration, the gasket according to any one of claims 1 to 10 described above, A gasket main body for both sides and a sheet-like gasket mounting member integrated with the gasket main body for both sides are provided, and the gasket is bent into two at the time of mounting to the mating mounting member. Since it is configured to be attached to both surfaces of the mating member, the two gaskets originally required on both surfaces of the mating member can be manufactured and handled as one.
- the sheet-like gasket attachment member integrally has a portion attached to one surface of the mating attachment member, a portion attached to the other surface, and a connection portion connecting the two portions,
- the connecting portion is bent at the time of mounting (claims 12).
- a bending position such as a notch or a perforation is provided to facilitate bending of the connecting portion.
- the specific portion is provided at the connecting portion (claim 13).
- one gasket proposed in the present application has the following contents.
- a gasket and resin film integrated product in which two gaskets to be bonded to both sides of an electrolyte membrane are formed on one resin film.
- a gasket integrated with a sheet-like gasket mounting member such as a resin film used in fuel cells, etc.
- two gaskets to be bonded to both sides of a mating mounting member such as an electrolyte membrane, and one sheet of resin film etc.
- An integrated product of a gasket molded on a sheet-like gasket mounting member and a sheet-like gasket mounting member.
- the resin 8 An integrated product with an adhesive (adhesive) applied to the opposite side of the film.
- an adhesive is applied to the opposite surface of the sheet-like gasket mounting member such as a resin film on which the gasket is not formed.
- the gasket is an integrated product integrated with a sheet-like gasket mounting member such as a resin film by adhesive rubber.
- the gasket is formed of an adhesive rubber and is integrated with a sheet-like gasket mounting member such as a resin film by the adhesiveness.
- an adhesive is previously applied to the surface of the resin film for forming the gasket, and the rubber is integrated with the resin film via the adhesive.
- an adhesive is previously applied to the surface of the sheet-like gasket mounting member such as a resin film for forming a gasket, and rubber is applied through the adhesive.
- An integral product molded on a sheet-like gasket mounting member such as a single resin film.
- An adhesive is applied to the opposite side of the sheet-like gasket mounting member such as a resin film, through which the mating mounting member integrated with the mating mounting member such as an electrolyte membrane and the gasket are bonded.
- a gasket is formed on the opposite surface of the resin film to which the adhesive (adhesive) is applied.
- the method of manufacturing the gasket is injection molding, dispensing or printing.
- the rubber to be used is integrated with the resin film using a rubber material with selective adhesion. If the selective adhesive rubber is not used, apply an adhesive beforehand to the surface of the resin film on which the gasket is to be formed.
- a resin film-integrated gasket that is attached to both sides of the electrolyte membrane forms a gasket on both sides at once in one large resin film. After that, the resin film is punched into the shape to be used.
- one resin film-integrated gasket When integrated with the electrolyte membrane, one resin film-integrated gasket is folded into two and bonded to both sides of the electrolyte membrane. By making a shallow cut in the bent portion of the resin film, the bendability can be improved.
- the rubber material used for the gasket is mainly silicone rubber, EPM or fluorine rubber.
- As the resin film one coated with an adhesive on one side such as PET, PEN or ⁇ I is used. The thickness is between 0.3 and 0.3 mm.
- an integrated product of a sheet-like gasket attachment member such as a resin film and a gasket formed on a sheet-like gasket attachment member such as a resin film and a gasket is attached to a mating attachment member such as an electrolyte membrane.
- a mating attachment member such as an electrolyte membrane.
- the gasket is attached to both sides of the electrolyte membrane for a fuel cell, respectively.
- Two or more lips are provided ”(Claim 17),“ Each gasket is squeezed without seal lip ”(Claim 18),“ One gasket One or more seal lips and the other gasket has a squeeze shape without the seal lip ”(Claim 19) or“
- One gasket is provided with one seal lip and the other
- the gasket is provided with two or more seal lips "(claim 20) for the following reasons.
- the present inventors formed a gasket body on a resin film in which an adhesive was applied to a surface on which the gasket body was not formed, and integrated the resin film with the gasket body. The method of attaching the product to the electrolyte membrane with an adhesive was studied.
- the gasket body when the gasket body is collapsed after setting in the fuel cell system. Since a fuel cell stacks many fuel cells called cells, it is necessary to reduce the reaction force of the gasket body.To reduce the reaction force, it is important to reduce the amount of crushing of the gasket body. . That is, the gasket body before setting is required to have a shape with a low height. On the other hand, the gasket body is required to have a high peak surface pressure so that the gas in the fuel cell can be sealed even if the height of the gasket body is reduced. To increase the surface pressure, it is conceivable to provide a seal lip on the gasket body.
- the inventions according to Claims 17 to 20 described above have a slight deviation in the position of attachment of the sheet-like gasket mounting member (such as a resin film) on both sides. Also proposes a gasket shape that does not cause a decrease in the peak value of the surface pressure.
- each gasket is provided with two or more seal lips.” (Claim 17), “Each gasket has a squeeze shape without a seal lip” (Claim 18), "One or more gaskets are provided with one or more seal lips and the other gasket Is a squeeze shape having no seal lip. ”(Claim 19) or“ One gasket is provided with one seal lip and the other gasket is provided with two seal lips.
- one gasket proposed in the present application has the following contents. (34)
- two or more seal lips are provided on both sides of the gasket .
- the shape of the gasket is symmetrical with respect to the electrolyte membrane. Since there are two or more seal lips, even if the position of the gasket is misaligned on both sides, it can be handled.
- An integrated product of an electrolyte membrane and a gasket in which a resin film-integrated gasket is attached to both sides of an electrolyte membrane for a fuel cell, in a shape with one or more seal lips provided on one side of the gasket.
- the gasket on the other side has no seal lip.
- the gasket shape is asymmetric with respect to the electrolyte membrane. Since the seal lip is single-sided, there is no need to worry about the displacement of the seal lip position on both sides.
- gasket of the present invention can be suitably used for an HDD gasket and the like as well as a fuel cell gasket.
- the HDD is a hard disk of the recording unit, a drive motor, a reader
- the structure, cooling parts, etc. are placed in a narrow housing.
- This HDD gasket is required to be thinner and have a sealing property for complicated surfaces due to the demand for smaller HDDs and diversification of housing shapes. Therefore, when an extremely thin gasket or a gasket having an irregular shape is mounted, there is a disadvantage that the assemblability is not so good.
- it is attached it is easy to have a part that is extended, loosened, or twisted, or the gasket is deformed when it is placed on top of a manufactured gasket or during transportation
- the gasket may be inconvenienced, and care must be taken in handling the gasket to ensure the sealing performance of the gasket. According to the present invention, these inconveniences can be dealt with.
- the application of the gasket of the present invention to an HDD in the present application includes the following technical matters.
- one gasket proposed in the present application has the following contents.
- rubber is integrally molded using an adhesive, or directly, adhesive rubber is integrally molded, and the HDD top cover A gasket for HDD top cover, which is affixed to the top.
- rubber is integrally molded using an adhesive on the other surface of a sheet-like gasket mounting member such as a resin film coated with an adhesive (adhesive) on one side, or adhesive rubber is directly molded directly.
- a gasket for HDD top cover which is attached to the HDD top cover.
- an acrylic or silicone-based adhesive to one side of a resin film such as polyethylene terephthalate, polyethylene naphthalate, or polyimide.
- Adhesive (adhesive) HDD to which rubber is integrally molded on the back side of the coated surface with an adhesive or directly to form an adhesive rubber, and then a resin film is attached to the top cover base material and integrated.
- Cover gasket or, in order to solve the problems in the prior art, a sheet-like gasket mounting member such as a resin film such as PET, PEN or PI is used.
- Acrylic or silicone adhesive is applied to the surface, and the adhesive (adhesive) is integrally molded with rubber on the back side of the application surface, or directly with adhesive rubber.
- An HDD top cover gasket that is integrally molded and then integrated by attaching a sheet-like gasket attachment member such as a resin film to the top cover substrate.
- the gasket material when integrally molded with an adhesive, silicone rubber, fluorine rubber, nitrile rubber, butyl rubber Alternatively, EPDM or the like is used.
- the material of the adhesive rubber that can be directly adhered to the resin film is not limited.
- the resin film has a temperature of about 100 to 200, which is the temperature at which the rubber can be molded. Those that can withstand C are selected, and those having a film thickness of 10 to 500 ⁇ , preferably 50 to 150 ⁇ m are used.
- the resin film polyethylene terephthalate, polyethylene naphthalate, polyimide-based, ester-based, amide-based, imid-based, etc.
- general-purpose films can be used.
- polyethylene terephthalate Mitsubishi Plastics Diaram 100 / zm (product name) is used.
- the resin film cut into a sheet or seal shape is clamped to form rubber. If the film is in the form of a sheet, it must be cut into a seal after molding, and if the film is in the form of a seal, it is necessary to provide a die press margin around the seal lip.
- the adhesive should be acrylic or silicone, and the coating thickness should be 100 / im or less, preferably 10 to 50 ⁇ m.
- the resin film and the top cover substrate are integrated by thermocompression bonding using this adhesive.
- the sheet-like gasket attachment member such as a resin film serves as a reinforcing material, the handleability is good, the workability at the time of post-adhesion is improved, and the sheet-like gasket attachment member such as a resin film has an adhesive (The adhesive (adhesive) is attached, eliminating the step of applying the adhesive (adhesive) to the gasket alone, stabilizing the quality and making the adhesive (adhesive) uniform.
- it since it is integrally molded and post-adhered via a sheet-like gasket attachment member such as a resin film, it has been difficult to integrally mold because the thermoplastic resin inside melts out due to heat and pressure in the past.
- the gasket can be easily integrated.
- the gasket is formed integrally with the sheet-like gasket mounting member such as a resin film, it is not necessary to perform processing for integrating the through-holes etc. into the top cover base material, thus reducing the cost of the top cover base material. It becomes possible.
- FIG. 1 is a table showing the test results of gasket adhesion to a separator or MEA
- Fig. 2 is a cross-sectional view of a main part of the gasket according to the first embodiment of the present invention
- Fig. 3 is a second embodiment of the present invention.
- FIG. 4 is a cross-sectional view of a gasket according to a third embodiment of the present invention
- FIG. 5 is a plan view of a gasket according to a fourth embodiment of the present invention.
- FIG. 6 is an enlarged cross-sectional view taken along line AA in FIG. 5
- FIG. 7 is a cross-sectional view of a main part showing a mounted state of the gasket
- FIG. 8 is a gasket according to a fifth embodiment of the present invention.
- FIG. 9 is an enlarged sectional view taken along the line BB in FIG. 8,
- FIG. 10 is a sectional view showing a main part of the gasket in a mounted state
- FIG. 11 is a sixth embodiment of the present invention.
- FIG. 12 is a cross-sectional view of a main part of a gasket according to an example
- FIG. 12 is a cross-sectional view of a main part of a gasket according to a seventh embodiment of the present invention
- FIG. FIG. 14 is a cross-sectional view of a gasket according to a ninth embodiment of the present invention.
- FIG. 15 is a plan view of a gasket according to a tenth embodiment of the present invention.
- FIG. 16 is an enlarged cross-sectional view taken along the line DD in Fig. 15, Fig. 17 is an enlarged cross-sectional view taken along the line E-E in Fig. 15, and Fig. 18 shows the mounting state of the gasket.
- FIG. 19 is a cross-sectional view of a main part of the gasket according to the eleventh embodiment of the present invention
- FIG. 20 is a cross-sectional view of a main part of the gasket
- FIG. 21 is a cross-sectional view of the gasket.
- FIG. 22 is a cross-sectional view of a main part showing a mounted state
- FIG. 22 is a cross-sectional view of a main part of a gasket according to a twelfth embodiment of the present invention
- FIG. 23 is a cross-sectional view of a gasket according to a thirteenth embodiment of the present invention.
- FIG. 24 is a plan view
- FIG. 24 is an enlarged sectional view taken along line FF in FIG. 23
- FIG. 25 is a sectional view of a main part of a gasket according to a fourteenth embodiment of the present invention
- FIG. 27 is a cross-sectional view of a main part of a gasket according to a sixteenth embodiment of the present invention.
- FIG. 28 is a cross-sectional view of a main part of a gasket according to a seventeenth embodiment of the present invention.
- FIG. 29 is a plan view showing a gasket mounting state according to an eighteenth embodiment of the present invention, FIG.
- FIG. 30 is an enlarged sectional view taken along line G_G in FIG. 29, and FIG. FIG. 32 is a plan view showing a state before mounting (before bending), FIG. 32 is an enlarged sectional view taken along line H—H in FIG. 31, FIG. 33 is a sectional view of a main part of a gasket according to a conventional example, FIG. 34 is a cross-sectional view of a main part of a gasket according to another conventional example, and FIG. 35 is a cross-sectional view of a main part of a gasket according to a comparative example.
- FIG. 2 shows a cross section (cut end face) of a main part of the gasket 1 according to the first embodiment of the present invention.
- This gasket 1 is used as a gasket for a fuel cell, and is configured as follows.
- a resin film 2 as a sheet-like gasket mounting member is provided, and one surface (the upper surface in the figure) 2a of the resin film 2 is made of a rubber-like material through an adhesive (not shown).
- Rubber 3 as the body of the gasket is molded.
- An adhesive (also referred to as an adhesive) 4 is applied to the other surface (upper and lower surfaces in the figure) 2 b of the resin film 2, and the resin film 2 in which rubber 3 is integrally molded is used as the adhesive 4.
- the rubber 3 has a seal lip portion 3a and is formed in a triangular or mountain-shaped cross section.
- the rubber 3 has a flat seal structure (second embodiment) as shown in FIG.
- a flat bead-shaped seal lip (also referred to as a bead) 3b with a flat seal structure (third embodiment) may be used.
- the injection molding is performed with the resin film 2 coated with an adhesive in advance on one surface 2a attached to a molding die for injection molding the rubber 3. Then, the rubber 3 is adhered to the one surface 2a of the resin film 2 simultaneously with the molding (insert molding). Next, the integrally molded product composed of the resin film 2 and the rubber 3 is taken out of the molding die, and an adhesive 4 is applied to the other surface 2 b of the resin film 2.
- the separator 5 may be an electrolyte membrane, an electrode with a catalyst, or the like in the reaction electrode section (MEA).
- an integrated molded product of the gasket including the resin film 2 and the rubber 3 is manufactured by the above configuration.
- the resin film 2 serves as a reinforcing material for the rubber 3. Therefore, the shape retention of the gasket 1 is enhanced as compared with a rubber-only product, and the gasket 1 is hardly deformed as a whole, so that the gasket 1 can be easily handled or assembled.
- the rubber 3 is formed integrally with the resin film 2 and is post-adhered to the separator 5 via the resin film 2, the separator 5 does not need to be mounted on a mold when the rubber 3 is formed. Therefore, even if the separator 5 is made of a low-strength material or a thin plate, there is no risk of cracking or the like, so that the separator 5 and the gasket 1 can be easily integrated.
- the resin film 2 to be mounted on the mold instead of the separator 5 is free from cracks or the like, it is possible to set a large mold clamping force at the time of molding. Therefore, generation of a large amount of rubber burrs during molding can be prevented.
- the gasket 1 is attached to the separator 5 as a mating attachment member by the attaching function of the adhesive 4 provided on the other surface 2 b of the resin film 2, the gasket 1 is positioned.
- the gasket 1 can be attached to the separator 5 by a simple operation of simply pressing down.
- the rubber 3 is applied to one surface 2a of the resin film 2 with an adhesive.
- the adhesive rubber may be directly molded without applying the adhesive instead of integrally molding the rubber. Further, a rubber which is previously formed into a product shape by itself may be adhered to the one surface 2a of the resin film 2 with an adhesive.
- FIG. 5 shows a plane view of a gasket 21 according to a fourth embodiment of the present invention, and an enlarged cross section (cut end face) along line AA of FIG. 6 is shown in FIG.
- the gasket 21 is used as a gasket for a fuel cell, and is configured as follows.
- the adhesive 24 is attached to one surface (the lower surface in FIG. 6) of the resin film 23 as the sheet-like gasket mounting member, and the release film 25 is detachably attached.
- a laminated film body 22 having a three-layer structure is provided, and a gasket body 26 made of a rubber-like elastic material is integrated with the film body 22 by joining means such as insert molding, bonding, or fitting. ing.
- the resin film 23 is formed in a predetermined plane layout according to the plane shape of the fuel cell, is formed in an endless shape, and is formed in the same width shape over the entire circumference.
- the adhesive 24 is attached to one surface of the resin film 23 over the entire surface, and the release film 25 is formed in the same plane shape as the resin film 23.
- the gasket main body 26 made of a rubber-like viscous material includes a resin film side portion 27 attached to a part of the plane (the upper surface in FIG. 6) 23 a of the resin film 23 in the film body 22, Outer end face of film body 22 (outer side face, left end face or left side face in the figure) 2 2a, end face side part 28 attached to a, and release film 25 flat surface (upper and lower faces in the figure) 25a It has a release film side portion 29 that is partially adhered, and is formed to have a substantially U-shaped cross section.
- the resin film side portion 27 forms a top seal portion, and this portion 27 is provided with a seal lip portion 30 having a substantially triangular cross section.
- the release film side portion 29 forms a lower surface seal portion, and this portion 29 is formed in a flat shape.
- the two parts 27 and 29 are paired up and down to form a double-sided gasket.
- the laminated film body 22 is entirely covered with the gasket body 26.
- the inner part (the right part in the figure) is exposed over the entire circumference, and the notch 32 is formed on the release film 25 at the exposed part 31 over the entire circumference. It is set up. Therefore, when the release film 25 is gripped with a finger on the portion 33 inside the cut portion 32, the inner portion 33 is peeled off, and the adhesive 24 on the inner surface is exposed at the peeled portion. I do. Therefore, the gasket 21 is attached to a predetermined portion of the mating attachment member by the adhesive action or the sticking function of the exposed adhesive 24.
- FIG. 7 shows the mounting state of the gasket 21.On one surface of the separator 35, which is the mating mounting member, a groove-shaped gasket mounting portion 36 is provided in advance with the height adjusted. . Therefore, when attaching the gasket 21 to the separator 35, the inner portion 33 of the release film 25 is peeled off from the film body 22 as described above, and the release film of the gasket body 26 is removed. The side part 29 is fitted into the mounting part 36 for positioning, and the exposed part 31 of the film body 22 is pressed against the separator 35.
- a double-sided gasket is formed on the gasket body 26 made of a rubber-like elastic material. Since the release film side portion 29 that is in direct contact with the separator 35 as an attachment member is formed, the release film side portion 29 effectively seals between the film body 22 and the separator 35. It is possible. Therefore, high sealing performance can be obtained irrespective of the material or surface roughness of the separator 35, and high sealing performance can be obtained even if the sealing effect is small with only the adhesive 24.
- the attachment area is relatively small. The positioning work when attaching the gasket 21 to the separator 35 can be facilitated.
- the bonding function of the adhesive 24 attached to the lower surface of the resin film 23 Since the gasket 21 is attached to the separator 35, which is the mating attachment member, the gasket 1 can be easily formed by simply positioning the gasket 1 and pressing the exposed portion 31 of the film body 22. Can be attached to the separator 5.
- the exposed portion 31 of the laminated film body 22 is provided on the entire circumference of the gasket 21, so that the release film 2 is formed.
- a portion (the inner portion 33) which is peeled off during the mounting operation without the release film side portion 29 being attached is provided all around the gasket 21.
- the bonding area is small, as shown in FIGS. 8 to 10
- the exposed portion 31 and the inner portion 33 are provided at a plurality of places on the periphery of the gasket 21. In this case (fifth embodiment), since the bonding area is further reduced, the positioning operation and the bonding operation including the positioning operation can be further facilitated.
- the exposed part 31 and the inner part 33 are provided at six locations around the gasket 21, and the exposed part 31 is covered with the gasket body 26, respectively.
- the film 22 is provided as an inwardly projecting shape with respect to the main body.
- Fig. 9 is an enlarged cross-sectional view taken along line B-B in Fig. 8
- Fig. 10 is a cross-sectional view showing the mounted state, and an enlarged cross-section taken along line C-C in Fig. 8 has the same shape as Fig. 6. It is.
- FIG. 11 shows a cross section (cut end face) of a main part of a gasket 11 according to a sixth embodiment of the present invention.
- This gasket 11 is used as a gasket for a fuel cell, and is configured as follows.
- a resin film 13 as a sheet-like gasket mounting member is provided above the electrolyte membrane (ion exchange membrane) 12 in the reaction electrode portion (MEA) as a mating mounting member on the drawing.
- a gasket body 14 made of a rubber-like elastic material is integrally formed on one surface (the upper surface in the figure) 13 a of the resin film 13 via an adhesive (not shown). Also, the other side of the resin film 13 (upper and lower sides in the figure) 13b 3 not shown) is applied, and a resin film 13 integrally formed with the gasket main body 14 is attached to one surface 12 a of the electrolyte membrane 12 by this adhesive.
- a resin film 13 as a sheet-like gasket mounting member is provided above and below the electrolyte membrane 12 in the reaction electrode portion as a mating mounting member.
- a gasket body 14 made of a rubber-like elastic material is formed on one surface (upper and lower surfaces in the figure) 13a via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (the upper surface in the figure) 13 b of the resin film 13, and the resin film 13 in which the gasket body 14 is integrally formed is electrolyzed by the adhesive.
- the membrane 1 2 is attached to the other surface 1 2 b.
- the gasket body 14 in the upper part of the figure basically has a flat seal structure, and two bead-shaped seal lip parts 14a are integrally formed on the upper part of the figure in parallel with each other.
- the gasket body 14 in the upper and lower parts of the figure also basically has a flat seal structure, and two bead-shaped seal lip parts 14 are integrally formed on the upper and lower surfaces of the figure in parallel with each other.
- the upper and lower gasket bodies 14 are formed in mutually symmetric shapes.
- the gasket 11 having the above configuration, the same effect as the gasket 1 according to the first embodiment is obtained, and in addition, the gasket main body 14 on both sides of the electrolyte membrane 12 is provided with a bead-shaped seal lip portion 14 a. Since the two resin films 13 are provided, the peak pressure of the gasket main body 14 can be prevented from lowering even if the bonding positions of the resin films 13 on both sides are slightly shifted left and right in the figure.
- the adhesive rubber was directly integrated without applying an adhesive.
- the molding may be performed as described above.
- the gasket body 14 which has been previously formed into a product shape by itself may be bonded to the one surface 13a of the resin film 13 with an adhesive.
- FIG. 12 is a sectional view of a main part (cut end face) of a gasket 11 according to a seventh embodiment of the present invention. ).
- This gasket 11 is used as a gasket for a fuel cell, and is configured as follows.
- a resin film 13 as a sheet-like gasket mounting member is provided above the electrolyte membrane (ion exchange membrane) 12 in the reaction electrode section (MEA) as the counterpart mounting member,
- a gasket body 14 made of a rubber-like elastic material is formed on one surface (the upper surface in the figure) 13 a of the resin film 13 via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (upper and lower surfaces) 13 b of the resin film 13, and the resin film 13 integrally formed with the gasket body 14 is used as an electrolyte membrane by the adhesive. It is attached to one side of 1 2 1 a.
- a resin film 13 as a sheet-like gasket mounting member is provided above and below the electrolyte membrane 12 in the reaction electrode portion as a mating mounting member.
- a gasket body 14 made of a rubber-like elastic material is formed on one surface (upper and lower surfaces in the figure) 13a via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (the upper surface in the figure) 13 b of the resin film 13, and the resin film 13 in which the gasket body 14 is integrally formed is electrolyzed by the adhesive.
- the membrane 1 2 is attached to the other surface 1 2 b.
- the gasket body 14 in the upper part of the figure is basically a flat seal structure, and there is no bead-shaped seal lip on the upper part of the figure. This upper part is used to increase the surface pressure peak. It is formed in a gentle mountain shape.
- the gasket body 14 in the upper and lower parts of the figure also basically has a flat seal structure, and no bead-shaped seal lips are provided on the upper and lower surfaces of the gasket body. Therefore, it is formed in a gentle mountain shape.
- the upper and lower gasket bodies 14 are formed in mutually symmetric shapes.
- bead-shaped sealing lips 14 are provided on the gasket main body on both sides of the electrolyte membrane 1 2. Since the gasket body 14 was formed into a gentle mountain shape without providing a resin film, both sides of the resin film 13 were attached. Even if the position is slightly shifted left and right in the figure, it is possible to prevent the surface pressure peak value of the gasket main body 14 from decreasing.
- the adhesive rubber was directly integrated without applying an adhesive.
- the molding may be performed as described above.
- the gasket body 14 which has been previously formed into a product shape by itself may be bonded to the one surface 13a of the resin film 13 with an adhesive.
- FIG. 13 shows a cross section (cut end face) of a main part of a gasket 11 according to an eighth embodiment of the present invention.
- This gasket 11 is used as a gasket for a fuel cell, and is configured as follows.
- a resin film 13 as a sheet-like gasket mounting member is provided above the electrolyte membrane (ion exchange membrane) 12 in the reaction electrode section (MEA) as a counterpart mounting member.
- a gasket body 14 made of a rubber-like elastic material is formed on one surface (the upper surface in the figure) 13 a of the resin film 13 via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (upper and lower surfaces) 13 b of the resin film 13, and the resin film 13 integrally formed with the gasket body 14 is used as an electrolyte membrane by the adhesive. It is attached to one side of 1 2 1 a.
- a resin film 13 as a sheet-like gasket mounting member is provided above and below the electrolyte membrane 12 in the reaction electrode portion as a mating mounting member.
- a gasket body 14 made of a rubber-like elastic material is formed on one surface (upper and lower surfaces in the figure) 13a via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (the upper surface in the figure) 13 b of the resin film 13, and the resin film 13 in which the gasket body 14 is integrally formed is electrolyzed by the adhesive.
- the membrane 1 2 is attached to the other surface 1 2 b.
- the gasket body 14 in the upper part of the figure basically has a flat seal structure, and a single bead-shaped seal lip part 14a is integrally formed on the upper part of the figure. Also, The gasket body 14 at the top and bottom of the figure also basically has a flat seal structure, but no bead-shaped seal lip is provided at the top and bottom of the figure, and this bottom is used to increase the surface pressure peak. It is formed in a gentle mountain shape.
- the upper and lower gasket main bodies 14 are formed in mutually asymmetric shapes.
- a bead is attached to the gasket body 14 on the one surface 12 a side of the electrolyte membrane 12.
- the adhesive rubber was directly integrated without applying an adhesive.
- the molding may be performed as described above.
- the gasket body 14 which is previously formed into a product shape by itself may be adhered to one surface 13a of the resin film 13 with an adhesive.
- FIG. 14 shows a cross section (cut end face) of a main part of a gasket 11 according to a ninth embodiment of the present invention.
- This gasket 11 is used as a gasket for a fuel cell, and is configured as follows.
- a resin film 13 as a sheet-like gasket mounting member is provided above the electrolyte membrane (ion exchange membrane) 12 in the reaction electrode section (MEA) as a counterpart mounting member.
- a gasket main body 14 made of a rubber-like viscous material is formed on one surface (the upper surface in the figure) 13 a of the resin film 13 via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (upper and lower surfaces) 13 b of the resin film 13, and the resin film 13 integrally formed with the gasket body 14 is used as an electrolyte membrane by the adhesive. It is attached to one side of 1 2 1 a.
- a resin film 13 as a sheet-like gasket mounting member is provided above and below the electrolyte membrane 12 in the reaction electrode portion as a mating mounting member.
- a gasket body 14 made of a rubber-like elastic material is integrally formed on one surface (upper and lower surfaces in the figure) 13a via an adhesive (not shown).
- An adhesive (not shown) is applied to the other surface (the upper surface in the figure) 13 b of the resin film 13, and the resin film 13 in which the gasket body 14 is integrally formed is electrolyzed by the adhesive.
- the membrane 1 2 is attached to the other surface 1 2 b.
- the gasket body 14 in the upper part of the figure basically has a flat seal structure, and a single bead-shaped seal lip part 14a is integrally formed on the upper part of the figure.
- the gasket body 14 in the upper and lower parts of the figure also basically has a flat seal structure, and two bead-shaped seal lip parts 14 are integrally formed on the upper and lower parts of the figure in parallel with each other.
- the upper and lower gasket bodies 14 are formed in mutually asymmetric shapes. According to the gasket 11 having the above configuration, the same effect as the gasket 1 according to the first embodiment can be obtained, and in addition, a bead-shaped seal is provided on the gasket body 14 on the one surface 12 a side of the electrolyte membrane 12.
- the adhesive rubber was directly integrated without applying an adhesive.
- the molding may be performed as described above.
- the gasket body 14 which has been previously formed into a product shape by itself may be bonded to the one surface 13a of the resin film 13 with an adhesive.
- FIG. 15 shows a plane view of a gasket 41 according to a tenth embodiment of the present invention, and an enlarged cross section (cut end face) along line DD of FIG. 16 is shown in FIG.
- the enlarged cross section (cut end face) is shown in Figure 17.
- This gasket 4 1 is a fuel cell It is used as a gasket for a vehicle and is configured as follows. That is, first, a rubber-only type gasket main body 42 made of rubber-like elastic material is provided, and a plurality of gasket main bodies 42 are provided at a plurality of locations on the circumference of the gasket main body 42 as sheet-like gasket mounting members. Resin film 44 is attached. An adhesive 45 is attached to one surface (the lower surface in FIG.
- each resin film 44 and a release film 46 is releasably attached thereto.
- a film body 43 is provided, and the film body 43 is integrated with the gasket body 42 by a joining means such as insert molding, bonding or fitting.
- the plurality of resin films 44 to film bodies 43 are arranged on the same plane.
- the gasket body 42 made of the rubber-like elastic material is formed in a predetermined plane layout according to the plane shape of the fuel cell, and is formed in an endless shape. Further, the gasket main body 42 is formed in an O-ring shape having a circular cross section, and the above-mentioned respective film bodies 43 are arranged at an outer peripheral portion thereof and at a substantially central position in the height direction. As described above, since each film body 43 is disposed substantially at the center of the gasket body 42 in the height direction, the gasket 41 constitutes a double-sided gasket. Not all of the laminated film body 43 is covered by the gasket body 42, and the outer part (the right part in FIG. 17) is exposed from the gasket body 42.
- Cut portions 48 are provided in the release film 46 at the exposed portions 47. Therefore, when the release film 46 is gripped and pulled by a portion 49 outside the cut portion 48 with the fingers, the outer portion 49 is peeled off, and the adhesive 45 on the inner surface of the peeled portion is removed. Is exposed. Therefore, the gasket 41 is attached to a predetermined portion of the mating member by the adhesive action or the sticking function of the exposed adhesive 45.
- FIG. 18 shows a mounting state of the gasket.
- a gasket mounting portion 51 having a stepped shape is provided on one surface of a separator 50, which is a mating mounting member, with a predetermined height. . Therefore, the gasket 41 is attached to the separator 50.
- the gasket 41 When attaching, release the outer part 49 of the release film 46 from the film body 43 as described above, position the gasket body 42 with respect to the gasket mounting part 51, and attach the film body 43. Press the exposed part 4 7 against the separator 50.
- the gasket 41 has the same operation and effect as the gasket 1 according to the first embodiment, and the gasket 41 has a bonding function of the adhesive 45 attached to the lower surface of the resin film 44. Since the gasket 41 is attached to the separator 50, the gasket 41 is attached to the separator 50 by a simple operation of positioning the gasket 41 and pressing the exposed portion 47 of each film body 43. Can be installed.
- the gasket body 41 having a circular O-ring shape constitutes a double-sided gasket
- the gasket body 42 directly contacts the separator 50, so that the gap between the film body 43 and the separator 50 is increased. Can be effectively sealed. Therefore, high sealing performance can be obtained irrespective of the material or surface roughness of the separator 50, and high sealing performance can be obtained by using only the adhesive 45 even when the sealing effect is small.
- the cross-sectional shape of the gasket body 42 was an O-ring having a circular cross-section, but this cross-sectional shape was a lip shape as shown in FIGS. 19 to 21.
- the seal lip portions 52 are formed on the upper and lower surfaces of the gasket main body 42, respectively (the first embodiment).
- the mounting member may be an electrolyte membrane (ion exchange membrane) 53 in the reaction electrode portion as shown in FIG. 22.
- gaskets 4 are provided on the upper and lower surfaces of the electrolyte membrane 53, respectively. 1 is attached (twelfth embodiment).
- FIG. 23 shows a plane view of a gasket 61 according to the thirteenth embodiment of the present invention, and its FF line enlarged cross section (cut end face) is shown in FIG. 24.
- the gasket 61 is used as a gasket for a top cover in an HDD, and is configured as follows. That is, first, a resin film 62 as a sheet-like gasket mounting member is provided, and a gasket made of a rubber-like elastic material is provided on one surface (the upper surface in FIG. 24) of the resin film 62 via an adhesive 63.
- the body 64 is molded.
- An adhesive (also referred to as an adhesive) 65 is applied to the other surface (the lower surface in FIG.
- the resin film 64 is formed in a substantially triangular cross section, and the top is a seal lip 67.
- injection molding is performed in a state where a resin film 62 coated with an adhesive 63 in advance is mounted on a molding die for injection-molding the gasket main body 64.
- the main body 64 is bonded to one surface of the resin film 62 at the same time as the molding (insert molding).
- an integrally molded product composed of the resin film 62 and the gasket main body 64 is taken out of the mold, and an adhesive 65 is applied to the other surface of the resin film 62, and is integrally molded with the adhesive 65. Glue the product to one side of the top cover 6 6.
- an integrally molded product of the gasket 61 composed of the resin film 6.2 and the gasket main body 64 is manufactured by the above configuration.
- the resin film 62 serves as a reinforcing material for the gasket main body 64. Fulfill. Therefore, the shape retention of the gasket 61 is improved as compared with the rubber-only product, and the gasket 61 is less likely to be deformed as a whole, so that the handleability of the gasket 61 can be improved.
- the top cover 66 is formed when the gasket body 64 is formed. There is no need to mount this on the mold. Therefore, even if the top cover 6 is made of a low-strength material or thin plate, cracks will occur. Since there is no danger of this, the top cover 66 and the gasket 61 can be easily integrated.
- the resin film 62 mounted on the molding die instead of the top cover 6 does not cause harm or damage, the clamping force during molding can be set large. It is. Therefore, it is possible to prevent a large amount of rubber burrs from being generated during molding.
- the gasket 61 is attached to the top cover 66 as a mating attachment member by an attaching function using the adhesive 65 provided on the other surface of the resin film 2, the gasket 61 is positioned.
- the gasket 61 can be attached to the top cover 66 by a simple operation of simply pressing down.
- the adhesive rubber was directly applied without applying the adhesive 63.
- FIG. 25 shows one example (the fourteenth embodiment).
- the gasket main body 64 which has been previously formed into a product shape by itself may be adhered to one surface of the resin film 62 with an adhesive 65.
- FIG. 26 shows a cross section (cut end face) of a main part of a gasket 71 according to a fifteenth embodiment of the present invention.
- This gasket 71 is used as a gasket for a top cover in an HDD and has the following configuration.
- an adhesive also referred to as an adhesive
- a resin film 73 as a sheet-like gasket attachment member
- a release film 75 is detachably attached.
- a laminated film body 72 having a three-layer structure is provided, and a gasket body 76 made of a rubber-like elastic material is inserted into the film body 72 by insert molding, bonding, fitting, or the like.
- the resin film 73 is formed in a predetermined plane layout according to the plane shape of the top cover, and is formed in an endless shape. They are formed in the same width shape.
- the adhesive 74 is attached to one surface of the resin film 73 over the entire surface, and the release film 75 is formed in the same plane shape as the resin film 73.
- the gasket main body 76 made of a rubber-like viscous material includes a resin film side portion 77 attached to a part of the plane (the upper surface in the figure) 73 a of the resin film 73 in the film body 72, Outer end face of film body 7 2 (outer side face, left end face or left side face in the figure) 7 2a, end face side part 7 8 attached to a, and release film 75 5 plane (upper and lower faces in the figure) 7 5a It has a substantially U-shaped cross section integrally with a release film side portion 79 to be partially adhered.
- the resin film side portion 77 forms an upper surface seal portion, and this portion 77 is provided with a seal lip portion 80 having a substantially triangular cross section.
- the release film side portion 79 forms a lower surface seal portion, and this portion 79 is also provided with a seal lip portion 81 having a substantially triangular cross section.
- the two parts 77 and 79 are paired up and down to form a double-sided gasket.
- the gasket body 76 not all of the laminated film body 72 is covered with the gasket body 76, and the inner part (the right part in the figure) is exposed all around.
- a cut part 83 is provided over the entire circumference. Therefore, when the release film 75 is gripped and pulled by a finger on a portion inside the notch portion 83 (not shown, the drawing is in a mounted state, the drawing is in an attached state), the inside portion peels off, In the portion, the adhesive 74 on the inner surface is exposed. Therefore, the gasket 71 is attached to a predetermined portion of the mating attachment member by the adhesive function of the exposed adhesive 74 or the sticking function.
- FIG. 26 shows the mounting state of the gasket 71, and a groove-shaped gasket mounting portion 85 is provided on one surface of the top cover 84, which is the mating mounting member, in advance, at the same height. Have been. Therefore, when attaching the gasket 71 to the top cover 84, the inner part of the release film 75 is peeled off from the film body 72 as described above, and the release film side part 7 9 of the gasket body 76 is attached. Into the mounting part 85 and position it, and expose the exposed part 82 of the film body 72 to the top cover.
- a double-sided gasket is formed on the gasket body 76 made of a rubber-like elastic material. Since the release film side portion 79, which is in direct contact with the top cover 66, which is the mounting member, is formed, the release film side portion 79 causes the gap between the film body 72 and the top cover 84. Can be effectively sealed. Therefore, high sealing performance can be obtained without depending on the material or surface roughness of the top cover 84, and high sealing performance can be obtained by using the adhesive 74 alone even when the sealing effect is small. .
- the adhesive is attached to the top cover 84 using the flat surface of the adhesive 74 instead of the entire flat surface of the adhesive 74 attached to the entire lower surface of the resin film 73, the bonding area is relatively small. Therefore, the positioning operation when attaching the gasket 71 to the top cover 84 can be facilitated.
- the gasket 71 is attached to the top cover 84, which is a mating attachment member, by attaching the gasket 71 to the top surface of the mating member by an adhesive function attached to the lower surface of the resin film 73, the gasket 71 is positioned.
- the gasket 71 can be attached to the top cover 84 by a simple operation of only pressing the exposed portion 82 of the film body 72.
- the cross-sectional shape of the gasket body 76 may be an O-ring shape as shown in FIG. 27 (the 16th embodiment) or a lip shape as shown in FIG. Example) .
- FIG. 29 is a plan view showing a state in which the gasket 91 according to the eighteenth embodiment of the present invention is mounted on the electrolyte membrane 92 as a mating mounting member. The end face is shown in FIG.
- This gasket 91 is used as a gasket for a fuel cell, and is configured as follows.
- a resin film 93 is provided as a sheet-like gasket mounting member.
- the resin film 93 includes a portion (also referred to as a one-side portion) 94 disposed on one surface 92 a side of the electrolyte membrane 92 and a portion disposed on the other surface 92 b side (other portion). 95) and a relatively narrow connecting portion 96 connecting the two portions 94, 95 are integrally provided. Further, the upper surface 94 of the one-side portion 94 is illustrated. Gasket bodies 96 and 97 made of rubber-like elastic material are formed on the upper and lower surfaces 95 a of the figure a and the other side part 95 via an adhesive (not shown), respectively.
- the gasket 91 integrally including the resin film 93 and the gasket bodies 96 and 97 has a portion 94 on one side of the resin film 93 as shown in FIGS.
- the other part 95 and the connecting part 96 are molded as a single sheet and a gasket is provided on the same side 94a and 95a of the one part 94 and the other part 95, respectively.
- the main body 96, 97 is integrally molded by injection molding, and is folded into two at the connecting part 96 at the time of installation, and the adhesive (adhesive) applied to the other surface 93 a of the resin film 93 is applied. ) Is adhered to both surfaces 92 a and 92 b of the electrolyte membrane 92 via the agent 99.
- the connecting portion 96 of the resin film 93 is provided with a bending position specifying portion 100 formed of a notch that facilitates bending of the connecting portion 96 over the entire width of the one surface 96 a side. Have been.
- a resin film 93 having a surface 94a, 95a coated with an adhesive in advance is molded into a molding die for injection-molding the gasket body 97, 98.
- Injection molding is performed with the gasket main body 97, 98 attached to the first surface 94a, 95a of the resin film 93 simultaneously with the molding (insert molding).
- an integrally molded product composed of the resin film 93 and the gasket main bodies 97, 98 is taken out of the mold, and an adhesive 93 is applied to the other surface 93a of the resin film 93.
- the integrally molded article is adhered to both surfaces 9 2 a and 9 2 b of the electrolyte membrane 92.
- the electrolyte membrane 92 may be a separator or the like.
- an integrally molded product of the gasket composed of the resin film 93 and the gasket main bodies 97, 98 is manufactured by the above configuration.
- the resin film 93 is used as a reinforcing material for the gasket main bodies 97, 98.
- the gasket main bodies 97, 98 are integrally formed with the resin film 93 and are later bonded to the electrolyte membrane 92 via the resin film 93, the gasket main bodies 97, 98 are formed. It is not necessary to attach the electrolyte membrane 92 to the mold during the molding. Therefore, even if the electrolyte membrane 92 is made of a low-strength material or a thin plate, there is no risk of cracking or the like, so that the electrolyte membrane 92 and the gasket 91 can be easily integrated.
- the gasket 91 is attached to the electrolyte membrane 92 serving as the mating attachment member by the attaching function using the adhesive 99 provided on the other surface 93 a of the resin film 93,
- the gasket 91 can be attached to the electrolyte membrane 92 by a simple operation of bending, positioning, and pressing the gasket 91.
- the gasket bodies 97, 98 for both sides arranged on both sides 92a, 92b of the electrolyte membrane 92, which is the mating attachment member, and the gasket bodies 97, 98 for both sides are integrated.
- the gasket 91 is folded into two when attached to the electrolyte membrane 92 so that the gasket 91 is bonded to both surfaces 9 2 a and 9 2 b of the electrolyte membrane 92. Is composed of the electrolyte membrane 9 2 on both sides 9 2 a , 9 2b can be manufactured and handled by combining the two gaskets originally required. Therefore, the man-hour and cost for manufacturing the gasket 91 can be significantly reduced.
- the gasket bodies 97 and 98 may be formed by a dispenser method or a printing method instead of the injection molding method, or the surfaces 94a and 95a of the resin film 93 may be formed.
- an adhesive rubber may be directly molded without applying an adhesive.
- the gasket bodies 97 and 98 which have been previously formed into a product shape independently, may be adhered to one surface 94a and 95a of the resin film 93 with an adhesive.
- the present invention has the following effects.
- an integrated product of a sheet-like gasket mounting member having a sticking function on one surface and a gasket main body made of rubber-like elastic material is provided. Since the gasket is formed, the sheet-like gasket mounting member functions to reinforce the gasket main body, so that deformation of the gasket as a whole during handling can be suppressed to a relatively small value. Therefore, the gasket handling and assembling workability can be improved. In addition, since the gasket main body is integrated with the sheet-like gasket mounting member and is bonded to the mating mounting member via the sheet-like gasket mounting member, it is necessary to mount the mating mounting member on the molding die when forming the gasket main body.
- the mating member is made of a low-strength material or a thin plate, there is no risk of cracking or the like, so that the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the molding die instead of the mating mounting member is a resin film, for example, there is no fear of cracking, etc. Therefore, the generation of a large amount of molding burrs can be suppressed.
- the gasket is attached to the mating member by the sticking function provided on one side of the sheet-like gasket fixing member, the gasket is mated to the mating member by simple work that only requires positioning and pressing the gasket. Can be attached to members.
- the mating attachment member may be, for example, a fuel cell separator (Claim 14), a fuel cell reaction electrode or an electrolyte membrane that is a component thereof (Claim 15), or a HDD top cover (Claim 15).
- a fuel cell separator (Claim 14)
- a fuel cell reaction electrode or an electrolyte membrane that is a component thereof
- a HDD top cover (Claim 15).
- the gasket main body may be formed by using an adhesive to the other surface of the sheet-like gasket mounting member (the other side of the sheet-like gasket mounting member). Since the sheet-shaped gasket mounting member also functions as a reinforcing member for the gasket main body, the deformation of the gasket as a whole can be suppressed to a relatively small level. Therefore, the gasket handling and assembling workability can be improved. In addition, since the gasket main body is integrated with the sheet-like gasket mounting member and is bonded to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is formed when the gasket main body is formed. There is no need to attach to the mold.
- the mating attachment member is made of a low-strength material or a thin plate, there is no risk of cracking or the like, so that the other attachment member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the forming die instead of the mating mounting member is a resin film, for example, there is no fear of cracking, etc. Therefore, it is possible to suppress generation of a large amount of molding burrs.
- the gasket main body is made of adhesive rubber, and is integrally formed on the other surface of the sheet-like gasket mounting member by using the adhesiveness.
- the sheet-like gasket attaching member also acts to capture the gasket main body, so that the deformation of the gasket as a whole during handling can be relatively small. Therefore, gasket In this way, the handling and assembling workability can be improved.
- the gasket body is integrated with the sheet-like gasket mounting member and is bonded to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is attached to the molding die when forming the gasket body. No need to do.
- the gasket main body is integrally formed on both sides of the end portion of the sheet-like gasket mounting member using an adhesive.
- the mounting member has a reinforcing effect on the gasket main body, so that deformation of the gasket as a whole during handling can be suppressed to be relatively small. Therefore, the gasket handling and assembling workability can be improved.
- the gasket main body is integrated with the sheet-like gasket mounting member and is adhered to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is mounted on the molding die when forming the gasket main body. No need. Therefore, even if the mating member is made of a low-strength material or a thin plate, there is no risk of cracking or the like, so that the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the forming die instead of the mating mounting member is made of, for example, a resin film
- the mold clamping force should be set large because there is no fear of cracking. Therefore, it is possible to suppress the generation of a large amount of molding burrs.
- the gasket body is integrally formed on both sides of the end of the sheet-like gasket mounting member, a double-sided gasket is formed, and the gasket body directly contacts the mating mounting member. Can be reliably sealed.
- the gasket body is made of adhesive rubber and is formed integrally on both sides of the end of the sheet-like gasket mounting member by using the adhesiveness, the sheet-like gasket mounting member is also reinforced with respect to the gasket body.
- the gasket acts as a whole, so that the deformation of the entire gasket during handling can be kept relatively small. Therefore, the gasket handling and assembling workability can be improved.
- the gasket main body is integrated with the sheet-like gasket mounting member and is adhered to the mating mounting member via the sheet-like gasket mounting member, the mating mounting member is molded when the gasket main body is formed.
- the mating member is made of a low-strength material or a thin plate, there is no risk of cracking or the like, so that the mating member and the gasket can be easily integrated.
- the sheet-like gasket mounting member to be mounted on the forming die instead of the mating mounting member is a resin film, for example, there is no fear of cracking, etc. Therefore, the generation of a large amount of molding burrs can be suppressed.
- the gasket main body is integrally formed on both sides of the end portion of the sheet-like gasket mounting member, a double-sided gasket is formed, so that the gasket main body directly contacts the mating mounting member. Can be reliably sealed.
- the adhesive is attached to one surface of the sheet-like gasket mounting member, and the release film is detachably attached to the one surface.
- the adhesive can be protected by the release film before the installation work.At the time of the installation work, it is a simple operation to peel off the release film, position and press the gasket.
- the gasket can be attached to the mating attachment member.
- the adhesive is attached to one surface of the sheet-like gasket mounting member, and the release film is detachably attached to the one surface.
- the adhesive can be protected by the release film before the gasket is installed.
- the gasket can be attached to the mating attachment member by a simple operation of simply peeling the lum, positioning and pressing the gasket.
- the part where the release film is peeled off during the mounting work is provided only on the periphery of the gasket, and the peeling area and the sticking area are set to be small. Has been simplified.
- the rubber-only gasket main body and the sheet-like gasket mounting member provided on the periphery of the gasket main body are integrally formed. Since the gasket is formed and the sheet-like gasket mounting member has a sticking function on one side, the gasket is attached to the gasket by a simple operation that only requires positioning and pressing the gasket when mounting the gasket. Can be attached to the member.
- the gasket main body in the eighth aspect of the present invention is formed in an O-ring shape.
- the gasket main body according to claim 8 is formed in a lip shape, so that the gasket main body is also When the gasket comes into direct contact with the mating member, the gasket and the mating member can be effectively sealed. Therefore, high sealing properties can be obtained without depending on the material or surface roughness of the mating member, and high sealing properties can be obtained even when the sealing effect is small by using only the adhesive.
- the gasket main body for both surfaces arranged on both surfaces of the mating member is provided.
- a sheet-like gasket mounting member integrated with the gasket main body for both surfaces, and the gasket is bent into two when attached to the mating mounting member and adhered to both surfaces of the mating mounting member.
- the connecting portion of the sheet-like gasket mounting member is provided with a bending position specifying portion such as a notch or a perforation, the connecting portion is specified. It can be easily bent at the point.
- the gasket according to claims 17 to 20 of the present invention having the above-described structure has the same operation and effect as the gasket according to claim 1 of the present invention. Even if the gasket affixing position on both sides of the membrane is slightly displaced, it is possible to prevent the peak pressure of the gasket body from decreasing.
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- Sustainable Energy (AREA)
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Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/470,278 US7749635B2 (en) | 2001-03-09 | 2002-02-13 | Gasket with sheet-shaped member and a gasket mainbody mounted to a mounting member |
KR1020087031240A KR100931423B1 (ko) | 2001-03-09 | 2002-02-13 | 개스킷 |
KR10-2003-7011665A KR20030086290A (ko) | 2001-03-09 | 2002-02-13 | 개스킷 |
CA2442067A CA2442067C (en) | 2001-03-09 | 2002-02-13 | Gasket |
EP02701541A EP1367301B1 (en) | 2001-03-09 | 2002-02-13 | Gasket |
US11/708,625 US20070154769A1 (en) | 2001-03-09 | 2007-03-14 | Gasket |
US11/708,547 US7799484B2 (en) | 2001-03-09 | 2007-03-14 | Gasket for electrolyte membrane |
US11/708,495 US20070148524A1 (en) | 2001-03-09 | 2007-03-14 | Gasket |
US11/783,337 US20070190390A1 (en) | 2001-03-09 | 2007-04-09 | Gasket |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-066016 | 2001-03-09 | ||
JP2001066016 | 2001-03-09 | ||
JP2001083968 | 2001-03-23 | ||
JP2001-083968 | 2001-03-23 | ||
JP2001170564 | 2001-06-06 | ||
JP2001-170564 | 2001-06-06 | ||
JP2001-279117 | 2001-09-14 | ||
JP2001279117A JP4530122B2 (ja) | 2001-03-09 | 2001-09-14 | ガスケット |
Related Child Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10470278 A-371-Of-International | 2002-02-13 | ||
US11/708,547 Division US7799484B2 (en) | 2001-03-09 | 2007-03-14 | Gasket for electrolyte membrane |
US11/708,625 Division US20070154769A1 (en) | 2001-03-09 | 2007-03-14 | Gasket |
US11/708,495 Division US20070148524A1 (en) | 2001-03-09 | 2007-03-14 | Gasket |
US11/783,337 Division US20070190390A1 (en) | 2001-03-09 | 2007-04-09 | Gasket |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002073072A1 true WO2002073072A1 (fr) | 2002-09-19 |
Family
ID=27482099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2002/001196 WO2002073072A1 (fr) | 2001-03-09 | 2002-02-13 | Joint |
Country Status (7)
Country | Link |
---|---|
US (5) | US7749635B2 (ja) |
EP (2) | EP2418404A1 (ja) |
JP (1) | JP4530122B2 (ja) |
KR (2) | KR100931423B1 (ja) |
CN (1) | CN1324255C (ja) |
CA (1) | CA2442067C (ja) |
WO (1) | WO2002073072A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090081509A1 (en) * | 2002-12-25 | 2009-03-26 | Honda Motor Co., Ltd. | Fuel cell |
US8304119B2 (en) | 2003-09-02 | 2012-11-06 | Nok Corporation | Gasket |
US8720908B2 (en) * | 2006-04-03 | 2014-05-13 | Ichikoh Industries, Ltd. | Vehicle component and sealing member |
Families Citing this family (94)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004076877A (ja) * | 2002-08-20 | 2004-03-11 | Nok Corp | ガスケット |
US20040128825A1 (en) * | 2002-12-31 | 2004-07-08 | Belchuk Mark A. | Laminated membrane electrode seal assembly |
JP4739685B2 (ja) * | 2003-03-14 | 2011-08-03 | パナソニック株式会社 | 高分子電解質型燃料電池 |
JP4275433B2 (ja) * | 2003-03-19 | 2009-06-10 | 日本バルカー工業株式会社 | ゲート弁のシールプレートおよびシール材 |
JP4109570B2 (ja) | 2003-05-08 | 2008-07-02 | 本田技研工業株式会社 | 燃料電池 |
JP2005050728A (ja) | 2003-07-30 | 2005-02-24 | Nichias Corp | 燃料電池のセパレータ用ゴムガスケット |
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Also Published As
Publication number | Publication date |
---|---|
CN1324255C (zh) | 2007-07-04 |
US20070148525A1 (en) | 2007-06-28 |
US7799484B2 (en) | 2010-09-21 |
JP2003056704A (ja) | 2003-02-26 |
US20070154769A1 (en) | 2007-07-05 |
KR20030086290A (ko) | 2003-11-07 |
EP1367301A1 (en) | 2003-12-03 |
CA2442067C (en) | 2010-09-21 |
EP2418404A1 (en) | 2012-02-15 |
US20040075224A1 (en) | 2004-04-22 |
KR20090012361A (ko) | 2009-02-03 |
CN1496458A (zh) | 2004-05-12 |
US7749635B2 (en) | 2010-07-06 |
US20070148524A1 (en) | 2007-06-28 |
CA2442067A1 (en) | 2002-09-19 |
EP1367301B1 (en) | 2012-08-15 |
US20070190390A1 (en) | 2007-08-16 |
JP4530122B2 (ja) | 2010-08-25 |
EP1367301A4 (en) | 2009-07-08 |
KR100931423B1 (ko) | 2009-12-11 |
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