Provided are a degradable rubber composition that has the sealing performance as a rubber member of a sealing member and that can be easily removed after being continuously exposed to a fluid such as water for a predetermined period of time, by breaking into small pieces even when no external force is applied, a rubber member, a sealing member, and a method for producing a degradable rubber composition. Disclosed is a degradable rubber composition containing: a degradable rubber component including a millable rubber material composed of hydrolyzable rubber molecules; and an acidic hydrolysis accelerator that is a powder exhibiting acidic properties upon contact with water and that accelerates hydrolysis of the rubber molecules upon contact with water, in' which the acidic hydrolysis accelerator is contained at a content of 40 parts by mass or more with respect to 100 parts by mass of the degradable rubber component
Provided are: a bonding method with which it is possible to reduce adhesive overflow and improve adhesion while reducing the number of steps for bonding and without requiring strict control of adhesive amount or load; and a bonded object. The bonding method comprises: an application step, a shaping step, or a placement step; and a setting step and a processing step in which a first base material 210 and a second base material 220 are set on a first mold 110 and a second mold 120 so that the portion where an adhesive 300 has been applied, shaped, or placed is located at a recess 114 and a recess 124, and the first base material 210 and the second base material 220 are pressed with the first mold 110 and the second mold 120. The first base material 210 deforms inside the recess 114 because of the adhesive 300, thereby forming a protrusion 212 protruding toward the recess 114. The second base 220 deforms inside the recess 124 because of the adhesive 300, thereby forming a protrusion 222 protruding toward the recess 124. The adhesive 300 fills a gap formed by the protrusion 212 and the protrusion 222.
B29C 39/10 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
B29C 69/00 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor
Disclosed herein is a surface coating layer formation method and a gasket manufacturing method capable of reducing the falling off of insoluble fine particles into a liquid medicine while preventing leakage of the liquid medicine and maintaining stable slidability. A material of a surface layer has a composition in which silicon-based rubber particles are contained in a silicon-based solution, and a surface coating layer formation method includes an application step of applying the material to a surface of a base material so as to have a predetermined coating thickness; a drying step of drying a sliding member after the application at a first temperature for a first time period; a baking step of baking the sliding member after the drying at a second temperature for a second time period; and a cleaning step of extraction-cleaning the sliding member after the baking at a third temperature for a third time period.
Disclosed herein are a molding method and a mold capable of further reducing the distance between a base material and a seal member. A molding method includes: a preforming step of injecting a rubber material into a groove at a temperature where the rubber material is not vulcanized, in a cavity plate including the groove into which the rubber material is injected; and a vulcanization molding step of sandwiching a base material between the cavity plate and a mold, and molding the rubber material onto the base material as a seal member at a temperature where the rubber material is vulcanized. The cavity plate includes a gap forming portion between such portion and an inclined portion of the base material when a flat surface and a flat surface of the base material are pressed in the vulcanization molding, and a connecting groove connecting the groove and the gap forming portion.
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
Provided are: a degradable rubber composition which has sealing performance required of rubber members of sealing members and which after having been exposed to a fluid, e.g., water, over a given time period, can break into pieces even without receiving external stress and is thereby made easily removable; a rubber member; a sealing member; and a method for producing the degradable rubber composition. The degradable rubber composition comprises a degradable rubber component including a millable rubber material composed of hydrolyzable rubber molecules and an acidic hydrolysis accelerator which is a powder that becomes acidic upon contact with water and which accelerates the hydrolysis of the rubber molecules upon contact with water. The acidic hydrolysis accelerator is contained in an amount of 40 parts by mass or more per 100 parts by mass of the degradable rubber component.
The present invention provides: a degradable rubber composition with which it is possible to control the time until degradation starts after the composition is immersed in a fluid such as water; a rubber member; a sealing member; and a method for producing the degradable rubber composition. This degradable rubber composition contains: a degradable rubber component that includes a hydrolyzable rubber molecule; a hydrolysis accelerator that accelerates hydrolysis of the rubber molecule upon contact with water; and a hydrolysis inhibitor that inhibits hydrolysis of the rubber molecule. The hydrolysis accelerator contains an acidic hydrolysis accelerator that is a powder that exhibits acidity upon contact with water. The acidic hydrolysis accelerator is contained at a quantity of 40 parts by mass or more relative to 100 parts by mass of the degradable rubber component.
To provide a surface coating layer formation method and a method for producing a gasket with which it is possible to reduce loss of insoluble fine particles into a chemical solution while preventing leakage of liquid agents and maintaining stable slidability. The material of a surface layer has a composition containing silicon rubber particles in a silicon solution (study number 1 (formulation 1)). The method has an application step for applying the material so as to reach a prescribed coating film thickness on the surface of a base material, a drying step for drying the coated sliding member for a first period of time at a first temperature, a firing step for firing the dried sliding member for a second period of time at a second temperature, and a washing step for extracting and washing the fired sliding member for a third period of time at a third temperature.
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 5/00 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
B05D 7/02 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
Provided are a molding method and a die which can further reduce the distance between an inclined portion of a base material and a sealing material when molding the sealing material on the base material having the inclined portion. The molding method comprises: a pre-molding step for injecting, in a cavity plate 510 having a groove 562 into which a rubber material 150 is injected, the rubber material 150 into the groove 562 at a temperature at which the rubber material 150 is not vulcanized; and a vulcanization molding step for interposing a base material 300 between a die 520 and the cavity plate 510 in which the rubber material 150 is injected into the groove 562, and molding the rubber material 150 on the base material 300 as a sealing material 172 at a temperature at which the rubber material 150 is vulcanized. The cavity plate 510 has: a space forming part 564 for generating a space Sp with an inclined portion 304 of the base material 300 when a flat surface 302 and a flat surface 306 of the base material 300 are pressed in the vulcanization molding step; and a coupling groove coupling the groove 562 and the space forming part 564. The groove 562 of the cavity plate 510 is provided in the vicinity of the space forming part 564.
B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor of moulding techniques only
B29C 45/17 - Component parts, details or accessoriesAuxiliary operations
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
Providing is a molding method by which, when molding a seal material in a direction intersecting depressions and protrusions in a substrate, it is possible to reduce damage and deformation of the substrate. The present invention includes, with respect to a cavity plate 410 having a groove 462 in which a rubber material is injected, the following: a pre-molding step for injecting the rubber material, at a temperature at which the rubber material does not crosslink, into the groove 462; and a vulcanization molding step for molding the rubber material, at a temperature at which the rubber material crosslinks, as a sealing material 172 on a substrate 300, the substrate 300 being interposed between the cavity plate 410 having the groove 462 in which the rubber material has been injected and a mold 420. When the mold 420 is seen from the cross-section at a position separated by a predetermined distance in a X direction that is substantially orthogonal to a Y direction in which the sealing material extends from the position in which the sealing material 172 is molded, at least a surface 422, which opposes recesses 334 and protrusions 332 of the substrate 300, is a flat surface.
B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor of moulding techniques only
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
Provided is a molding method with which it is possible to reduce contamination of a substrate by an adhesive or a tackifier. A molding method for molding a sealing material 172 onto a substrate 140, the molding method being provided with: a preliminary molding step in which in a cavity plate 160 having grooves 162 for injecting a rubber material 150 thereinto, the rubber material 150 is injected into the grooves 162 at a temperature at which the rubber material 150 does not crosslink; an application step for applying an adhesive or a tackifier 600 onto the surface of the rubber material 150 injected into the grooves 162 of the cavity plate 160; and a vulcanization molding step for sandwiching a substrate 140 between a second mold 222 and the cavity plate 160 in which the adhesive or the tackifier 600 has been applied to the surface of the rubber material 150, and molding, at a temperature at which the rubber material 150 crosslinks, the rubber material 150 as a sealing material 172 onto the substrate 140 with the adhesive 600 interposed therebetween.
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B29C 45/02 - Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor of moulding techniques only
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
A fluid flow field of a separator of a fuel cell stack allows a fluid to flow in a separator surface direction. A rubber seal member provides a seal between the fluid passage and the fluid flow field. The tunnel portion intersects the rubber seal member at an intersection. The tunnel portion allows the fluid flow field and the fluid passage to connect to each other. In the rubber seal member, a first portion protrudes from a flat portion in a stacking direction, and a second portion protrudes from a protruding end surface of a tunnel portion in the stacking direction.
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
H01M 8/0267 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors having heating or cooling means, e.g. heaters or coolant flow channels
H01M 8/028 - Sealing means characterised by their material
H01M 8/0276 - Sealing means characterised by their form
H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
The present invention provides a seal structure for an internal combustion engine in which a gasket is interposed between first and second body-constituting members that are connected adjacent to each other while constituting a part of an engine body, wherein a gasket (44) is formed such that a plurality of seal parts (45, 46) made of different materials are endlessly contiguous while being joined at joining parts (47), and the entire periphery of the gasket (44) including the joining parts (47) is held between the first and second body-constituting members. A function required in only a part of an annular seal part between a pair of body-constituting members can thereby be satisfied with a small gasket with which cost increases are avoided.
Embodiments provide a fluid detection device including a casing connectable to a tube filled with water and allows the water to flow to a hollow inner part; a partition wall deformable so that the hollow inner part is divided into a fluid chamber filled with the water and an air chamber opened to the atmosphere; a slide tip disposed inside the fluid chamber; and a tip sensor disposed outside the casing. According to at least one embodiment, a slide holding part which holds the slide tip slidably forward and backward is formed inside the fluid chamber, an opening part is formed in the air chamber, a magnet is disposed in the casing, the slide tip includes a magnet provided at a position facing the magnet and repelling the magnet.
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
G01L 7/02 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
In order to provide a fluid detection device with which a fluid can be detected in a stable manner, with little susceptibility to temperature changes or an attachment state, this fluid sensor has: a case (2) capable of connecting to a tube (10) the interior of which is filled with water (8), with the water (8) inside the tube (10) capable of circulating in a hollow inner part (2a); a deformable diaphragm (4) that partitions the hollow inner part (2a) into fluid chamber (12) filled with the water (8) and an air chamber (14) open to the atmosphere; a slide tip (6) arranged inside the fluid chamber (12); and a tip sensor (7) arranged on the outside of the case (2). A slide retention unit (2d) that holds the slide tip (6) so as to be capable of sliding forward/backward is formed inside the fluid chamber (12), an aperture (2h) is formed in the air chamber (14), a magnet (16) is arranged on the case (2), the slide tip (6) has a magnet (18) repelling the magnet (16) and provided at a position opposing the magnet (16), and the movement of the slide tip (6) based on the elastic deformation of the tube (10) can be detected.
H01H 35/24 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
G01L 1/02 - Measuring force or stress, in general by hydraulic or pneumatic means
H01H 13/18 - Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
15.
SEALING STRUCTURE FOR SEALED POWER STORAGE DEVICE, SEALED POWER STORAGE DEVICE, AND METHOD FOR MANUFACTURING SAME
The present invention pertains to a sealing structure for causing an injection hole provided to a closing-off plate for closing off the opening of a case to be sealed using a sealing plug, wherein: the sealing plug is provided with a plate-shaped holding member to be joined to the closing-off plate and a press-fit member to be joined to the holding member. The sealing plate has a deep counterbore portion provided around the injection hole, and the press-fit member is provided with a base part to be joined with the holding member and a protruding part inserted into the injection hole. The diameter HD1 of the opening of the injection hole, the diameter PD1 of the boundary between the protruding part and the base part, and the diameter PD3 at the tip are such that diameter PD1 ᡶ diameter HD1 ᡶ PD3. A gap (L1) is provided between the base part and the bottom part of the deep counterbore part.
A sealing member includes a metal lid, an elastic shaft, a supporting protrusion, and a tip portion. The tip portion has an engaging portion larger in diameter than a liquid inlet. The shaft portion has a diameter smaller than that of the liquid inlet and a shaft length longer than the thickness of the circumferential edge portion of the liquid inlet. A sealed battery manufacturing method includes: a temporary sealing step of pressure-contacting the engaging portion to the circumferential edge portion; a degassing step of forming a communication path by pushing the tip portion to such an extent that the lid part does not make contact with a battery case and the tip portion is apart from the circumferential edge portion; and a final sealing step of pressing the tip portion until the lid part makes contact with the battery case, thereby sealing the liquid inlet.
A sealed battery includes an electrode body; a battery case housing the electrode body and having an open surface; a lid member closing the case; a liquid inlet formed penetrating through the lid member; and a sealing member. The sealing member has: a metal sealing plate welded to the lid member to cover and seal the liquid inlet; and an annular movable portion displaceable between a contact position contacting the entire circumference of the inlet and a non-contact position not contacting at least a portion of the inlet. The movable portion is displaced to the non-contact position when the pressure of the inside region of the battery case sealed by the movable portion in the contact position is increased beyond a limit value with respect to the pressure of the outside region opposite from the inside region with respect to the movable portion.
A hermetically sealed battery is provided with a sealing member for air-tightly sealing the through-hole of a battery case from the outside. The sealing member has: a covering member secured to the battery case from the outside; an insertion portion inserted into the through-hole; an annular pressure contact portion in air-tight pressure contact with the hole surrounding portion of the battery case; and a connecting portion disposed between the insertion portion and the annular pressure contact portion so as to be integral with the insertion portion and the annular pressure contact portion. The connecting portion is provided with an annular groove surrounding the insertion portion.
A sealing structure, provided with a sealing plate having an injection hole, and a sealing plug for sealing the injection hole. The sealing plug has: a press-fitted member press-fitted into the injection hole to block the injection hole, the press-fitted member containing an elastic material; and a plate-shaped holding member for applying pressure to the press-fitted member so that the press-fitted member is held while being press-fitted into the injection hole, the plate-shaped holding member being bonded to the sealing plate. The press-fitted member has: a plate-shaped base having a larger diameter than that of the injection hole, the plate-shaped base being in contact with the holding member at one principal surface; and a protruding part provided so as to protrude from the other principal surface of the base, the protruding part being inserted into the injection hole. The diameter (PD1) of the protruding part at the boundary with the base is greater than the diameter (HD1) of the holding-member-side first opening of the injection hole, and the diameter (PD2) of the protruding part at the tip portion is less than the diameter (HD1). A gap (L1) is provided between the base and the first opening of the injection hole while the injection hole is sealed by the sealing plug.
A sealing member is equipped with a metal lid portion and elastic shaft, supporting protrusion, and tip portions, wherein the tip portion has an engaging portion, the diameter of which is larger than that of an injection opening, and the shaft portion has a diameter smaller than that of the injection opening and a shaft length longer than the thickness of the circumferential edge portion of the injection opening. A hermetic battery manufacturing method comprises: a temporary sealing step of pressure-contacting the engaging portion to the circumferential edge portion of the injection opening; a degassing step of forming a communication path by pressing the tip portion to such an extent that the lid portion does not make contact with a battery case and the tip portion is apart from the circumferential edge portion of the injection opening; and a permanent sealing step of pressing the tip portion until the lid portion makes contact with the battery case to compress the supporting protrusion portion between the lid portion and the battery case, bonding the lid portion to the battery case, and thereby sealing the injection opening while the communication path remains formed inside the lid portion.
This sealed cell is provided with: an electrode body; a cell case that houses the electrode body and has an aperture surface; a lid member that occludes the aperture surface of the cell case; an infusion hole that penetrates the lid member; and a sealing member that seals the infusion hole. The sealing member has: a metal hole-sealing plate that is welded to the infusion hole periphery of the lid member and that seals the infusion hole by covering the outer aperture section of the infusion hole; and an annular mobile section that contacts the surface at the cell case inside of the hole-sealing plate, is provided in a manner so as to be able to be displaced to a contact position contacting the entire perimeter of the infusion hole and a non-contact position not contacting at least a portion of the infusion hole, and seals the infusion hole by means of being at the contact position. The mobile section displaces to the non-contact position when the pressure of the inner region to the inside of the cell case sealed by the mobile section being at the contact position has become greater exceeding a limit value with respect to the pressure of the outer region at the reverse side from the inner region sandwiching the mobile section.
Provided is a rotary valve which uses a sealing member having a shape combining multiple functions. The rotary valve is equipped with a rotor (1), and a casing (2) having a rotor-storage space (2a) for storing the rotor (1). The rotor (1) is provided with a rotor opening (15) for serving as a channel for a coolant. Openings (25a, 26a) which are capable of connecting to the rotor opening (15) are provided at positions of the inner-circumferential surface of the rotor-storage space (2a) which face the outer-circumferential surface of the rotor (1). A sealing member (77) is positioned so as to extend from the openings (25a, 26a) to the rotor (1). A tip-contact part (80) of the sealing member (77) contacts the rotor (1) and is equipped with an inside-curved section (81). The inside-curved section (81) functions as a seal and as a spring, grows increasingly narrower on the inside in the direction toward the tip-end side thereof, and curves so as to fold back on itself.
F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor
The purpose of the present invention is to provide a touch switch that, by integrally molding a pressure detection switch with a packing material, has a simpler configuration, and performs an excellent pressure detection function, and a method for manufacturing the touch switch. This touch switch has a conductive core material (5) and a pair of conductive wire materials (3, 4) which are provided parallel to the conductive core material (5), and is characterized in that a first electrode (7) is constructed by covering one of the pair of wire materials and the core material (5) with a conductive rubber material (6) in a state wherein the wire material is held with a predetermined space from the core material, a second electrode (8) is constructed by covering the other of the pair of wire materials with the conductive rubber material (6), the peripheries of the first electrode (7) and the second electrode (8) are covered with an insulating rubber material (2) such that a hollow section (9) where the first electrode (7) and the second electrode (8) face each other with the predetermined space (L) therebetween is formed, and the first electrode (7) and the second electrode (8) come into contact with each other as the hollow section (9) is deformed when a compressive force is applied thereto.
H01H 13/18 - Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches
24.
SEAL PLATE WITH SPACER AND MANUFACTURING METHOD THEREFOR
The purpose of the invention is to reduce the module size and reduce cost by disposing the rubber seal near the through hole, which has an irregularly shaped spacer of a uniform thickness. A metal seal plate (10) having multiple through holes (11, 12) and spacers (13) formed around the through holes (11, 12) as a result of press working and a rubber seal (9) formed by molding, the seal plate being characterized in that: the spacers (13) are formed to have irregular shapes by burring and curling and to have a prescribed height and smoothness by hemming; and the rubber seal (9) is formed along a seal line that is near the spacers (13) by a molding process using the multiple through holes (11, 12) as references.
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
A hermetically sealed battery (100) is provided with a sealing member (170) for air-tightly sealing the through-hole (113e) of a battery case (110) from the outside. The sealing member (170) has: a covering section (171) secured to the battery case (110) from the outside; an insertion section (173) inserted into the through-hole (113e); an annular pressure contact section (175) in air-tight pressure contact with the hole surrounding section (113f3) of the battery case (110); and an intervention section (177) disposed between the insertion section (173) and the annular pressure contact section (175) so as to be integral with the insertion section (173) and the annular pressure contact section (175). The intervention section (177) is provided with an annular, intervention section's groove (177v) surrounding the insertion section (173).
b) such that the ring member (3) is firmly secured to the gasket (3). The air intake noise reducing device constituted by in the above-mentioned manner can reduce assembly man-hours without deteriorating a sealing property of the air passage.
A lubrication oil supply device (3) capable of being easily mounted to and removed from position, using less number of parts, and reduced in size in its entirety. The lubrication oil supply device (3) is mounted on a sliding table (2) engaging with a raceway rail (1), applies lubrication oil to the raceway rail (1), and has application bodies (33a, 33b) for applying the lubrication oil to the raceway rail (1), occlusion bodies (32a, 32b) for retaining the lubrication oil and supplying the oil to the application bodies (33a, 33b), and a casing (31) having receiving sections (311a, 311b) provided with receiving chambers (316a, 316b) for receiving the occlusion bodies (32a, 32b), also having a connection section (312) for connecting the receiving sections (311a, 311b), and formed as an integral unit constructed by connecting the receiving sections (311a, 311b) together by the connection section (312). At least the connection section (312) of the casing (31) is constructed from an elastic body, and the casing (31) can be mounted to and removed from the raceway rail (1) by elastically deforming the casing (31).
F16C 29/06 - Ball or roller bearings in which the rolling bodies circulate partly without carrying load
28.
AIR INTAKE NOISE REDUCING DEVICE, INTERNAL COMBUSTION ENGINE WITH THE SAME, AND INSTALLATION STRUCTURE FOR AIR INTAKE NOISE REDUCING DEVICE OF INTERNAL COMBUSTION ENGINE
Provided are an air intake noise reducing device, an internal combustion engine having the air intake noise reducing device, and an installation structure for the air intake noise reducing device of the internal combustion engine. The air intake noise reducing device has a gasket (2) and a net member (3). The gasket (2) has a ring part (2a) held at a connection surface of an intake passage (100) and also has projection receiving parts (2b) extending from the ring part (2a) in the direction of the center of the intake passage. The net member (3) has a net part (3a) for straightening an intake air flow and also has connection projections (3b) extending from the net part (3a) to the outside of the intake passage. Connection projections (3b) are received in the projection receiving parts (2b) to secure the net member (3) to the gasket (2). Therefore, the man-hours for assembly are reduced, and the sealability of the intake passage is not impaired.
patents
