JP2001146971A - Gasket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a static gasket easy to handle or install and favorably used in a multiple stack having a minute seal gap. SOLUTION: The static gasket 100 includes a stopper 20 and a thin carrier 10 to support a seal member 60 of elastomer. The seal member 60 is formed by molding in adjacency to the stopper member 20. The stopper member 20 works as a compression restricting member to restrict the compression force to the seal member 60. Alternatively the seal member may be formed from a material different from the stopper member. Various substances can be considered as the material for the carrier.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static gasket made of an elastomer, and more particularly to a gasket provided with a compression restricting means for preventing an elastomer seal from being excessively compressed.

[0002]

BACKGROUND OF THE INVENTION Many applications of elastomer seals require a "thin" static seal due to space constraints. Such a requirement often requires the use of a homogeneous elastomeric seal that is not supported by a support. However, elastomeric seals without supports are difficult to assemble with high productivity, especially when fitted in shallow and narrow grooves. This is because seals without supports have a tendency to pop out of the groove and to twist in the groove during assembly. In either case, there is a risk that the joint will leak or damage the facing component.

Another approach involves casting a seal into the groove. While this approach solves the problem of assembling the seal, it is considered too expensive for large volume applications.

[0004] Another method is to use a carrier gasket. In this manner, the elastomer is cast in or along the grooves of a metal or plastic carrier, the carrier being 3.0 mm thick to provide rigidity to the seal and ease of handling. This approach is also constrained in that the carrier is too thick in applications where there are only small gaps. You have to minimize the total length of the sealed unit,
For multiple stack applications where powertrain components must be sealed under height or length packaging constraints, 3.
A carrier thickness of 0 mm is unsatisfactory.

[0005]

As described above, none of the prior art gaskets is satisfactory for applications in which a small gap is required.
There is a demand for a thin gasket having a total thickness of about 0.015 mm to 1.75 mm when compressed. The present invention seeks to solve the above-mentioned problems of the prior art, and provides an effective seal in a multi-stack application or a powertrain component application in which a package is tightly restricted when a clamp load is applied to a gasket. It is intended to provide a thin static gasket that can be used.

[0006]

The static gasket of the present invention has a carrier member having a thickness of less than 1.0 mm. The carrier member is provided with a first stopper member. An elastomeric sealing member is formed on the surface of the carrier member. The stopper member prevents the seal member from being excessively compressed when the gasket receives a clamping load.

[0007] In another aspect, the present invention provides a method comprising:
A static gasket comprising a thin carrier of less than 1 mm and having compression limiting means for preventing the sealing member from being over-compressed when the gasket is subjected to a clamping load.

In yet another aspect, the present invention provides a pair of stoppers for preventing an elastomeric sealing bead provided on a thin carrier from being pushed out of a sealing cavity when a gasket is subjected to a clamping load. A static gasket comprising a member is provided.

The present invention also provides a static gasket in which a pair of stopper members are spaced apart from each other on a thin carrier, and an elastomer seal is formed in a gap formed by the stopper members. . Each of the pair of stop members constitutes a stop that prevents the seal member from substantially increasing the width of the gap when the elastomeric seal is compressed by the clamping load.

The present invention further provides an elastomeric stopper member on a thin carrier less than 1.0 mm thick between seals to prevent over-compression of the seal. The present invention also provides a method of manufacturing a gasket comprising a thin carrier having a thickness of less than 1.0 mm and a compression limiting member. The above and other features of the present invention will become more apparent from the following description.

[0011]

1 to 6 show an elastomeric static gasket 100 of the present invention. The present invention relates to both an apparatus and a method for manufacturing the gasket 100. The gasket 100 seals a fluid. Fluids include gases or liquids, mixtures thereof, or fluids entrained with solid particles (eg, air entrained with dust). Liquids include water, oil, fuel, antifreeze, air conditioning fluid,
Or other similar materials. Gases include steam, hydrogen, air, oxygen, nitrogen, carbon dioxide, air conditioning steam, fuel steam,
Includes lubricating oil vapor or other similar materials.

Preferably, the static gasket 100 includes a carrier 10, a first pair of stopper members 20, a second pair of stopper members 40, and a first elastomeric seal 60.
And a second elastomeric seal 80. The gasket 100 includes a thin carrier 10 having a thickness of less than 1.0 mm. The preferred thickness of the carrier 10 (however, the scope of the present invention is not limited thereto) is 0.01 mm to 0.75 mm, preferably 0.05 mm to 0.5 mm.

The carrier 10 is preferably made of polyamide (eg, “Nylon” manufactured by DuPont), polyethylene terephthalate (eg, “Mylar” manufactured by DuPont), polyimide (eg, “Kapton” manufactured by DuPont) (above, DuPont) (Registered trademark), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), or polyethylene terephthalate (PET). Alternatively, the carrier 10 may be a polymer material such as polyester, polyamide, silicone, polyimide, polyethersulfone, or a metal (steel,
Thin layer of brass, aluminum, magnesium, or stainless steel, etc.) or gas diffusion layer, graphite plate,
It can be formed of a proton exchange membrane, a layer of non-woven material, a fiberboard, a woven fabric, a rubber-coated metal layer, a ceramic layer, or any other material suitable for practicing the present invention for use in making cellulosic composite gaskets. it can. The layer of nonwoven material can be formed of polyester, polyolefin, metal or ceramic, or any other material suitable for the application.

The material forming the carrier 10 is preferably a compliant material, but stiffness is enhanced by forming an elastomeric seal and a stopper member, the elastomeric seal and the stopper member providing sufficient rigidity to the gasket. The addition facilitates handling and assembly of the gasket. Alternatively, the material forming the carrier may be relatively non-compliant to facilitate handling and assembly depending on the application. The final choice of the compliance of the carrier material depends on the temperature, the fluid to be sealed, the application constraints (geometry,
(Including ease of assembly and materials used to manufacture mating parts).

As best seen in FIGS. 4, 5 and 6, the carrier 10 has a top surface 12 and a back surface 18. Preferably, the first pair of stopper members 20 are formed from a polymeric material molded on the upper surface 12. This pair of stop members 20 comprises two relatively flat compression limits or stops 22, 24 spaced apart from each other. There is a first void or gap 36 between these stops 22 and 24. The gap 36 formed between the two stoppers 22 and 24 is a volume space having a width, a height and a length, as is well known.

A gap 3 is provided between the stoppers 22 and 24.
A rubber first elastomeric seal 60 is molded, formed, adhered, positioned, affixed or inserted into 6, the first elastomeric seal 60 preferably being in the form of a void volume seal 78. Has become.
The void volume seal is a seal having a configuration in which the void, that is, the gap 36 is larger than the maximum volume of the seal 60 when compressed in the gap 36. This allows the elastomeric seal 60 to expand by swelling or thermal expansion or chemical action without being pushed out of the void 36. Preferably, the bead shape of the seal 60 is triangular, the base of which is in contact with the upper surface 12 of the carrier 10. As a variant, the shape of the seal 60 is
Can have a semi-circular shape with a flat, planar surface in contact with the upper surface 12 of the substrate. Alternatively or additionally, any other elastomeric seal bead shape that produces a sufficient sealing force, such as rectangular, square, polygonal, semi-elliptical, semi-oval, semi-circular, truncated triangle, or any other fluid that passes through the seal. Any shape that can prevent movement or leakage can be used.

The seal 60 includes at least one bead 62 having an apex 64, the height of the apex 64 being higher than the height 27, 29 of the stopper 22, 24 from the surface 12 in the uncompressed state. In the compressed state, i.e., when seal 60 is tightened against the opposing surface due to the tightening load imposed on the opposing surface to seal the opposing surface, bead 62 is compressed into cavity 36. Since the seal 60 is formed of an incompressible rubber or elastomer, the rubber will conform to the volume of the space in the void 36 when a clamping load is applied to the gasket 100. If the volume of cavity 36 is smaller than the volume of the seal, the elastomer will be extruded from cavity 36. Therefore, the space in the gap 36 is 100.
Set from 1% to 130%. Preferably, the volume of the space in the gap 36 is between 105% and 110% of the volume of the seal. The bead 62 can be compressed up to 80% from the apex 64 to the surface 12 of the carrier 10, preferably from 1.5% to 75%.

The relatively flat surfaces 26, 28 of the polymeric stops 22, 24 will slightly compress when under load. Side surfaces 2 of stoppers 22, 24
3 and 25 are designed so that they do not substantially bulge by careful selection of the shape factors of the stoppers 22 and 24 and their material properties. Preferably, side 2
3 and 25 are inclined in directions away from the upper surfaces 26 and 28, respectively. In some cases, these sides may be perpendicular to the top surfaces 26, 28 as shown at 23 ', 25' in FIG.

The stops 22, 24 are preferably the seals 6
0, but these stoppers can be formed of an elastomer having a durometer greater than that of the elastomer bead 62, or a thermoplastic resin, a thermosetting resin, or a thermoplastic resin. It may be formed from a polymer such as an elastomer (TPE) or, alternatively, may be formed from a suitable metal or ceramic layer or composite fiberboard.

The elastomer bead 62 has the stopper 22,
Must be more obedient than 24. When the gasket is under a clamping load, the seal 60 will produce a higher line seal pressure at the apex 64 of the bead 62 because it is more compliant. Apex 6
This high line seal pressure at 4 prevents leakage of fluid through the seal without applying a high sealing force (seal load) on the entire opposing surface of the component to be sealed. This is because certain pressures on the friable components, such as graphite bipolar plates, from seals can cause high stresses in the bipolar plates, which can cause cracks in the bipolar plates, such as fuel cells. This is desirable in certain applications. If the sealing force exceeds the material strength of the bipolar plate, the seal may cause cracks in the opposite bipolar plate.

As described above, preferably, the stopper 2
2, 24 and seal 60 are formed of the same polymer material. Alternatively, the stoppers 22, 24 may be made of a different polymer than the material used to form the elastomer bead 60 (eg, silicone rubber, fluorosilicone rubber,
Butyl rubber, natural rubber, fluorocarbon rubber, ethylene acrylate, polyacrylate, fluoropolymer, polyisoprene, epichlorohydrin rubber, ethylene propylene rubber (EPDM), hydrogenated nitrile rubber (HNBR), thermoplastic elastomer (TPE) Or other polymers suitable for the practice of the present invention).

The preferred polymer used to form the elastomeric seal 60 and the stops 22, 24 is reaction cured. For the reaction curing of elastomers,
Addition ion curing, catalyst curing, ultraviolet curing, infrared curing,
There are condensation curing and free radical curing. When a conventional reaction-cured polymer is used, the adhesion of the elastomer to the carrier is improved by applying a primer coat or an adhesive to the carrier. The primer coat may be silane based or phenolic. Silane-based or phenolic resin primers are well known in the art and are widely used in elastomers. Examples of silane-based primers include General Electric part number SS4155 and Dow Chemical part number 3-606.
0, Rohm & Haas product number 304 (trademark Thixon), and Road product numbers 607 and 608. Rohm & Haas also has solvent based part numbers 2000, 05N-2, P15, 30
0, 715, 720, and water-based Thixon (trademark of Rohm & Haas) part numbers 2500, 7002, 7010, 7011, 7015
Has been manufactured. Other known primers can be used.

Optionally, a self-bonding elastomer can be used, in which case it is not necessary to apply a primer coat or adhesive to improve the bonding of the elastomer to the surface of the carrier 10. Examples of self-bonding silicone elastomers include Wacker and
Silicones part numbers LR3070, LR3071, LR3072, LR
There is 3073. Self-bonding silicone elastomers are also manufactured by Shin-Etsu Chemical and General Electric. Other self-bonding elastomers include:
There are nitrile rubber, hydrogenated nitrile rubber (HNBR), ethylene propylene rubber (EPDM), butyl rubber, fluorocarbon, ethylene acrylate, fluoropolymer, fluorosilicone, isoprene, and epichlorohydrin.

Preferably, the height of the first stopper 22 and the height of the second stopper 24 are substantially the same. However, when the compression load on the first stopper member is larger than the compression load on the second stopper member, it is desirable that the compression height of the first stopper member be different from the compression height of the second stopper member. Will. The difference between the compressed height of the first stopper 22 and the compressed height of the second stopper 24 does not affect the concept of the present invention, unless the volume in the gap 36 is less than 100.1% of the maximum volume of the seal.

In the above, the gasket 100 has been described as comprising the seal 60 on the upper surface 12 of the carrier 10 and the first pair of stoppers 20. Preferably, the carrier 10
Has a mirror-symmetrical structure similar to that described above for the upper surface 12. That is, a second seal 80 and a second pair of stopper members 40 are formed or molded on the back surface 18. The second pair of stop members 40 includes stops 42, 44, which are spaced apart from each other to form a second void or void 56. Preferably, the stoppers 42, 44
The carrier 10 has sides 43, 45 substantially perpendicular thereto, and has heights 47, 49 extending below the back surface 18. Also,
Although not shown, the side surfaces 43 and 45 may be inclined or slightly tapered. Second elastomeric seal 80
Has at least one bead 82 and the bead 82
Has an apex 84 forming a void volume seal 98. Accordingly, the bottom of the gasket 100 has a mirror-symmetrical configuration with respect to the top, and the seal 80 and the stoppers 42, 44 are provided on the seal 60 on the upper surface 12 side of the carrier 10.
And the stoppers 22 and 24 operate in the same manner as described above.

As mentioned above, the preferred gasket structure is a mirror-symmetrical structure (ie, the shape on one side of the carrier is the same as the shape on the opposite side), so that the gasket between the two opposing surfaces, such as surface 2 and surface 4 When the gasket 100 is compressed or tightened, the reaction force is equal on both sides of the carrier 10. This balances the forces acting on the carrier 10 and makes it possible to use "thin" carriers. In addition, the mirror-symmetric structure minimizes the occurrence of cracking and fracture-causing bending stresses in opposing brittle materials. The upper half of FIG. 6 shows a state where the stopper member 20 (seal 60) is not compressed, and the lower half of FIG.
0 (seal 80) shows where it was compressed. The total thickness of the gasket 100 in the compressed state is preferably 0.015
mm to 1.75 mm.

If the structure of the seal or stopper is not the same on both sides of the carrier, a thicker or less compliant carrier will be required to cope with the reaction forces.
However, the function of the stopper member as the compression restricting portion or stopper is also to limit the compression height of the seal. In a structure in which there is a seal between a pair of stoppers, the stopper is such that the seal can be removed from the gap. It also has the function of preventing extrusion. Therefore, the function of the stopper member does not change as described above.

In the preferred embodiment, the stopper member 20,
40 is formed of an elastomer whose dimensions are such that the shape factor and elastomeric material properties (eg, durometer hardness) limit the bulging of the sides 23, 25 when a compressive load is applied to the stopper members 20, 40. ). Here, the “shape factor”
Intermediate Rubber Course of the American Chemical Society Rubber Division (1985
The ratio of the area of the loaded elastomer divided by the total area of the non-bulging elastomer is defined as defined in the edition. “Swelling” is a term used in the field of elastomer to mean a distortion generated on an unloaded side surface of the elastomer member when a load is applied to the upper surface of the elastomer member. In practicing the present invention, the shape factor is between 0.1 and 100, preferably between 0.15 and 10, more preferably between 0.2 and 1.0.

In manufacturing the static gasket 100,
As shown in FIG. 7, a carrier 10 is clamped between one mold half 6 and the other mold half 8 of a conventional molding machine. If a conventional elastomer is used, an adhesive is applied to the surface of the carrier prior to molding and before placing the elastomer. If a self-bonding elastomer is used, it will not be necessary to provide a separate adhesive coating on the surface of the carrier. Uncured polymer or elastomeric material is fed into the cavity through a hole in the mold to allow the elastomer to fill the space between the carrier 10 and the cavity half 6, while not deforming the carrier.
Flow into 8. Heating the polymeric or elastomeric material improves flow into the cavity. The polymer material is at a temperature sufficient to cure the polymer, forming the elastomeric seal members 60,80, the first stopper member 20, and the second stopper member 40.

Alternatively, the elastomeric seal member 60 may be provided by placing, injecting, transporting, forming, applying by roll coating, or screen printing a polymeric material on the top 12 and back 18 surfaces of the carrier 10. ,
80 can be formed. As will be appreciated by those skilled in the art, in certain applications it may be sufficient to form only one elastomeric seal member on the carrier 10 (ie, only need to form the elastomeric seal member 60 on the upper surface 12 of the carrier). . In the gasket 100 of this shape, a pressure-sensitive adhesive is applied to the back surface 18 of the carrier 10 as necessary, so that the gasket can be easily attached to the opposing surface and can be adhered to the opposing surface. Opposing surfaces can be sealed. Alternatively, the first and second stopper members may be formed of other polymer or metal layers, ceramics, or composite fiber boards, as described above.

FIG. 8 shows a gasket 200 according to another embodiment of the present invention. The same components as the gasket 100 described above are denoted by the same reference numerals. The gasket 200 includes a thin carrier 10, a first stopper member 120, a second stopper member 130, a first seal member 160, a second seal member 170, a third seal member 180, and a fourth seal member 190. Have. The carrier 10 has a top surface 12 and a back surface 18. The first stopper member 120 is formed on the upper surface 12,
The second stopper member 130 is formed on the back surface 18. The first seal member 160 is on the upper surface 12 and is adjacent to one side of the first stopper member 120. The second seal member 170 is on the upper surface 12 and is adjacent to the opposite side of the first stopper member 120. The third seal member 180 is on the back surface 18 and is adjacent to one side of the second stopper member 130. The fourth seal member 190 is provided on the back surface 18.
On the opposite side of the second stopper member 130.

Preferably, the first stopper member 120 is located on the opposite side of the second stopper member 130, and the first seal member 160 and the second seal member 170 are opposite to the third seal member 180 and the fourth seal member 190, respectively. Located on the side. Preferably, the sealing members 160, 170, 18
0,190 are formed of the same elastomeric material as described above for seals 60 and 80 of the preferred embodiment. Similarly, the first stopper member 120 and the second stopper member 130 are preferably the first stopper member of the preferred embodiment.
The pair of stopper members 20 and the second pair of stopper members 40 are formed of the same elastomer material as described above. If desired, the first stopper member 120 and the second stopper member 130 can be formed of resin, metal, ceramic, or a composite fiber board, as described above for the preferred embodiment.

In the embodiment shown in FIG. 8, the first stopper member 120 functions as a compression limiting portion for preventing the first seal portion 160 and the second seal portion 170 on one side of the carrier 10 from being excessively compressed. Similarly, the second stopper member 130 is connected to the third seal portion 180 and the fourth
It functions as a compression limiter that prevents excessive compression of the seal 190. In all other respects, only one stopper member is provided on each side of the carrier 10, so that the stopper members 120, 130 are the same as the stopper members 2 except that the stopper members 120, 130 do not form voids (voids).
Works like 0,40.

The width of the stopper members 120, 130 is designed to withstand a sealing load acting from an opposing component (not shown) to be sealed. Stopper member 120,
130 absorbs most of the clamp load acting from the opposing component, thereby forming the sealing members 160, 170, and 18.
Since the 0,190 prevents over-compression, the seal member maintains a high line sealing force against the opposing component and prevents leakage of fluid through the seal.

In addition to the applications described above, the gasket of the present invention can be used for a water pump, a front cover,
Throttle bodies, carburetors, rocker covers, fuel valves, flexible printed circuits, air conditioning units, intake manifolds, water outlet connectors, thermostat housings, oil pans, and any restrictions on use may require gasket thickness to be minimized. It can be used for applications such as when used between two opposed flanges.

While the present invention has been described with reference to preferred embodiments and variations, the present invention is not limited thereto, and the invention covers all design variations.

In addition to the claimed invention and embodiments, the present invention includes the following embodiments. 1. Sealing beads are rectangle, square, triangle, void volume, polygon, half oval, semi-ellipse, semi-round,
2. A gasket according to claim 1, wherein said gasket has a shape selected from the group consisting of: 2. 2. The gasket according to claim 1, wherein the apex is compressed from 1.5% to 70%.

3. A static gasket for sealing two opposing surfaces, the gasket comprising: a carrier member having a top surface and a back surface, having a thickness of less than 1.0 mm, and a first pair of carriers provided on the top surface. A stopper member, wherein one of the first pair of stopper members is separated from the other, and one and the other of the first pair of stopper members have a first height from the upper surface. And a second pair of stopper members provided on the back surface, wherein one of the second pair of stopper members is separated from the other, and one and the other of the second pair of stopper members. Has a second height from the rear surface, and a first has at least one sealing bead provided on the upper surface.
An elastomer seal member and a first pair of stopper members, and a second elastomer seal member and a second pair of stopper members provided on the back surface and having at least one sealing bead. When the first and second sealing members are clamped between the two opposing surfaces, the at least one sealing bead of the first sealing member is compressed to the first height and the at least one sealing bead of the second sealing member is compressed. A static gasket, wherein one sealing bead is compressed to said second height, said first and second heights limiting compression on the first and second sealing members.

4. The elastomeric seal member,
The gasket according to the third embodiment, wherein the gasket has one curing method selected from the group consisting of addition ion curing, condensation curing, free radical curing, catalytic curing, infrared curing, and ultraviolet curing. 5. A gasket for a fluid seal, comprising: a carrier member;
An elastomeric polymer member disposed on the carrier member, and a pair of stopper members provided adjacent to the polymer member to prevent the polymer member from being excessively compressed. A gasket characterized in that the thickness when compressed is 0.015 mm to 1.75 mm. 6. The gasket according to the fifth embodiment, wherein the thickness of the carrier member is 0.01 mm to 0.75 mm. 7. The carrier member is one selected from the group consisting of a polymer layer, a woven fabric layer, a nonwoven fabric layer, a metal layer, a gas diffusion layer, a graphite plate, a proton exchange membrane, a composite fiber board, a rubber-coated metal layer, and a ceramic layer. A gasket according to the fifth embodiment, wherein the gasket is formed of a material. 8. Embodiment 5 wherein one of the pair of stopper members has a shape factor of 0.15 to 10.
Based on gasket.

9. Gasket for fluid seal, including:
Non-woven layer, woven layer, polymer layer, rubber coated metal layer, composite fiberboard layer, gas diffusion layer, graphite layer, formed of one material selected from the group consisting of proton exchange membrane, less than 1.75 mm A carrier member having a thickness; and an elastomeric polymer member formed on the carrier member, the polymer member including at least one sealing bead and one stopper member, wherein the polymer member has a surface of the carrier member. And the polymer member has one curing method selected from the group consisting of addition ion reaction curing, condensation curing, addition ion exchange curing, infrared curing, ultraviolet curing, and free radical curing. The stopper member has a shape factor of 0.10 to 100, and the sealing bead includes an apex having a height greater than the height, Gasket Apex is characterized in that it is compressed to 80%.

10. The first stopper member includes a pair of compression limiting members adjacent to the elastomeric sealing member, one of the pair of compression limiting members is on one side of the elastomeric sealing member, and the other of the pair of compression limiting members. 9. The gasket according to claim 8, wherein is on the other side of the elastomeric sealing member. 11. 9. The gasket according to claim 8, wherein the first stopper member is molded on the carrier member. 12. The carrier member has a surface opposite to one surface, the elastomeric sealing member is formed on the one surface, and the gasket further includes an adhesive layer provided on the opposite surface of the carrier member. Gasket according to claim 8, characterized by having: 13. 9. A gasket according to claim 8, wherein said stopper member comprises at least one compression limiting member adjacent to said elastomeric sealing member for limiting compression of said elastomeric sealing member. 14． 9. A gasket according to claim 8, wherein said stopper member is formed of an elastomeric material, said elastomeric material having a shape factor of 0.15 to 10. 15. 9. A gasket according to claim 8, comprising a second elastomeric sealing member formed on said carrier member.

16. The method according to claim 9, wherein the stopper member is positioned at the same height as the seal member from the upper surface of the carrier when the seal member is in a compressed state. 17． The method according to claim 9, wherein the carrier is coated with a primer before placing the carrier in the mold. 18. The method for manufacturing a gasket according to claim 9, wherein the introducing step is performed by one method selected from the group consisting of placement, injection, transfer, on-site formation, roll coating, extrusion, and screen printing. 19. The method according to claim 9, wherein the stopper member has a shape factor of 0.15 to 10. 20. The method according to claim 9, wherein a second stopper member is formed adjacent to the seal member. 21. The method according to claim 9, wherein the carrier has a thickness of 0.015 mm to 0.75 mm. 22. The method according to claim 9, wherein the polymer is a self-bonding polymer.

23. The method according to claim 9, wherein a pressure-sensitive adhesive is applied to a back surface of the carrier. 24. The method according to claim 9, wherein the seal member and the stopper member are formed of different polymers. 25. A method for producing a static gasket, comprising disposing a carrier having a thickness of less than 1.0 mm in a mold. 26. The carrier is a polymer layer, a woven layer, a nonwoven layer,
The above embodiment, which is formed of one material selected from the group consisting of a metal layer, a gas diffusion layer, a graphite plate, a proton exchange membrane, a composite fiberboard layer, a rubber-coated metal layer, and a ceramic layer. 25. A method for producing a gasket according to item 25.

[Brief description of the drawings]

FIG. 1 is a plan view of a preferred embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG.

FIG. 4 is an enlarged sectional view of a portion inside a circle 5 in FIG. 2;

FIG. 5 is an enlarged sectional view of a portion inside a circle 4 in FIG. 3;

FIG. 6 is a cross-sectional view of a static gasket made of an elastomer according to a preferred embodiment of the present invention disposed between two opposing surfaces, wherein the elastomeric seal on the top surface of the carrier is in an uncompressed state; Elastomer on the back of
Shows the seal in compression.

FIG. 7 is a cross-sectional view illustrating a method of manufacturing a gasket according to a preferred embodiment of the present invention.

FIG. 8 is a sectional view showing a variation of the gasket of the present invention.

[Explanation of symbols]

 100: Gasket 10: Carrier 12: Upper surface of carrier 18: Back surface of carrier 20: First pair of stopper members 22, 24: Stopper 36: Void (void) 40: Second pair of stopper members 42, 44: Stopper 60: First elastomer seal 62: Bead 64: Apex of bead 80: Second elastomer seal

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C09K 3/10 C09K 3/10 G JJZE F16J 15/12 F16J 15/12 F // B29K 7:00 B29K 7:00 21:00 21:00 B29L 31:26 B29L 31:26 (72) Inventor Mark A. Belchuck Canada, N8S 2K2 Ontario, Windsor, St. Louis Avenue, 245 (72) Inventor Paul Jay Hochgezzang United States of America , 48103 Michigan, Ann Arbor, Waltshire Court, 2045 (72) Inventor Frank A. Bentley United States, 62002 Illinois, Alton, Grandview Avenue, 2723

Claims (10)

[Claims] 1. A thin carrier member having an upper surface and a back surface; a first stopper member provided on the upper surface; and a distance from the first stopper member to form a gap between the first stopper member and the first stopper member. A second stopper member provided on the upper surface; and an elastomeric seal member having at least one sealing bead disposed in the gap, wherein the first and second stopper members have a predetermined height from the upper surface. The sealing bead comprises an apex extending from the upper surface and having a height greater than the height of the first and second stopper members, wherein the apex is the height of the first and second stopper members. When compressed, the seal member moves into the space of the gap, and the first stopper member moves to the first position.
And the second stopper member forms a second compression limiting member, and the first and second compression limiting members prevent the seal member from being excessively compressed. And static gasket. 2. The gasket according to claim 1, wherein the volume of the gap is larger than the volume of the seal member. 3. The elastomer includes fluorocarbon, silicone, fluorosilicone, butyl rubber, ethylene propylene rubber, ethylene acrylate, polyacrylate, polyisoprene, perfluoropolymer, natural rubber, epichlorohydrin rubber, nitrile rubber, hydrogen The gasket according to claim 1, wherein the gasket is one polymer material selected from the group consisting of a nitrile rubber and a thermoplastic elastomer. 4. The gasket according to claim 1, wherein the carrier has a thickness of less than 1.0 mm. 5. The gasket according to claim 1, wherein the carrier member has a thickness of 0.01 mm to 0.75 mm. 6. The apparatus according to claim 1, wherein said first and second restricting members have different heights from an upper surface of the carrier.
Gasket based on one of the five to five. 7. The method according to claim 1, wherein the first and second restricting members are formed of one material selected from the group consisting of a polymer, a metal, a ceramic, and a composite fiber board. Gasket based on any of 6. 8. A stopper comprising: a thin carrier member having a thickness of less than 1.75 mm; a first stopper member adjacent to the carrier member; and an elastomeric sealing member formed on a surface of the carrier member. A static gasket, wherein the member prevents the seal member from being excessively compressed when the gasket is subjected to a clamping load. 9. A method of manufacturing a static gasket of an elastomer, comprising: placing a thin carrier in a mold, introducing a polymer into a cavity of the mold, and a rubber stopper member on an upper surface of the carrier. Forming and forming an elastomeric sealing member adjacent to the stopper member, the stopper member having a predetermined height from the upper surface of the carrier,
The sealing member includes at least one sealing bead, the sealing bead including an apex extending from an upper surface of the carrier and having a height greater than the height of the stopper member, so that the gasket is capable of clamping load. The method of manufacturing a static gasket, wherein the stopper member prevents the seal member from being excessively compressed when the apex is compressed to the height of the stopper member. 10. The carrier is coated with a primer before placing the carrier in a mold.
Of manufacturing a gasket based on the method.