Abstract: A filler pipe, wherein a flow path for a fluid is formed through multiple resin materials being extruded simultaneously and wherein a corrugated part is shaped through peaks and valleys disposed continuously, comprises an outer layer formed from a high density polyethylene, a barrier layer formed from EVOH with superior resistance to fuel permeation, and an inner layer, formed from high density polyethylene. The structure is such that d<L when the depth from the apex of the peak to the bottom of the valley is defined as d, and the distance from the apex of the peak to the barrier layer is defined as L.

Abstract: The manufacturing method of the invention manufactures a fuel filler pipe (branching pipe), where a breather pipe is branched off from a filler pipe main body. The manufacturing method extrudes a first extruded tubular member and a second extruded tubular member, conveys molds arranged on both sides of the first extruded tubular member and the second extruded tubular member, and forms the first extruded tubular member and the second extruded tubular member corresponding to molding surfaces of the molds, so as to mold the filler pipe main body and the breather pipe. The manufacturing method then thermally welds part of the second extruded tubular member with an outer wall of the first extruded tubular member and closes an opening end of the breather pipe to form a welding joint portion. A connection hole for connecting the conduit of the filler pipe main body with the conduit of the breather pipe is formed in the welding joint portion with a tool inserted through an opening of the filler pipe main body.

Abstract: A filler device or pipe comprising: a filler neck including a pouring inlet, a neck connection portion, and a connection pipe which includes a bellows part and which is connected to the neck connection portion. Fuel is injected through the pouring inlet and fed into the fuel tank through a filling passage of the filler device. The filler device further includes an inner tube including a tube body formed of a flexible elastomer material, which is inserted into the connection pipe. The tube body and the connection pipe having cooperating engaging members for holding the tube body within the connection pipe. The tube body covers an inner wall of the bellows part.

Abstract: A filler pipe, wherein a flow path for a fluid is formed through multiple resin materials being extruded simultaneously and wherein a corrugated part is shaped through peaks and valleys disposed continuously, comprises an outer layer formed from a high density polyethylene, a barrier layer formed from EVOH with superior resistance to fuel permeation, and an inner layer, formed from high density polyethylene. The structure is such that d<L when the depth from the apex of the peak to the bottom of the valley is defined as d, and the distance from the apex of the peak to the barrier layer is defined as L.

Abstract: A fuel tube having an ethylene-vinyl alcohol copolymer (EVOH) layer formed of an EVOH-based extruded EVOH material, and a modified MHDPE layer formed of an extruded MHDPE material which is based on modified medium high density polyethylene (modified MHDPE) or is based on a polymer alloy containing mainly modified MHDPE. The modified MHDPE is a dicarboxylic acid-modified material having a melt mass flow rate value (190° C.: JIS K 7210) of about 0.01 to 0.9 g/10min. The interlayer adherability between the EVOH layer 14 and the modified MHDPE layer 16 is maintained while maintaining the anti-fuel permeability and the flexibility of the fuel tube 12.

Abstract: A fuel supply apparatus includes an inlet box, and a filler neck. The inlet box is dented in a vehicle panel, and has a bottom wall, a neck-penetrating opening pierced through the bottom wall, a box-side axial engagement portion and a box-side radial engagement portion. The filler neck is disposed to penetrate through the neck-penetrating opening into the inlet box, and has an outer peripheral surface provided with a flange. The flange has a flange-side axial engagement portion engaging with the box-side axial engagement portion to regulate axial movements of the filler neck, and a flange-side radial engagement portion engaging with the box-side radial engagement portion to regulate radial movements of the filler neck. The fuel supply apparatus can be assembled with ease, and can be manufactured at reduced cost.

Abstract: A resinous tube has opposite ends into one of which a mating member is fitted and with which the mating member is connected, and includes a sealing ring, a fastening cap, and a clamp. The sealing ring is disposed on an inner peripheral surface of the opposite end, and contacts elastically with an outer peripheral surface of the mating member. The fastening cap is disposed on the inner peripheral surface of the opposite end on an outer end side thereof with respect to the sealing ring, and contacts elastically with the outer peripheral surface of the mating member. The clamp is disposed on an outer peripheral surface of the opposite end, which is provided with the fastening cap on the inner peripheral surface, and tightens the fastening cap. The resinous tube exhibits good sealing and fastening abilities, requires less component parts, and can be connected with any mating members.

Abstract: A filler device comprising: a filler neck including a pouring inlet through which a fuel is injected and a neck connection portion; a connection pipe including a pipe connection end to which the neck connection portion is connected and a bellows part which is curved along a filling passage to a fuel tank; wherein the fuel injected through the pouring inlet is fed into the fuel tank through a filling passage, the connection pipe is provided with a pipe-side engaging portion on a back side of the pipe connection portion, the filler device further includes an inner tube including a tube body formed of a flexible elastomer material and inserted into the connection pipe, and a tube-side engaging portion projecting from an outer circumference at an end of the tube body, the inner tube is configured so that the tube body covers an inner wall of the bellows part and that the tube-side engaging portion is engaged with the pipe-side engaging portion, when the inner tube is inserted into the connection pipe, reaching to

Abstract: The manufacturing method of the invention manufactures a fuel filler pipe (branching pipe), where a breather pipe is branched off from a filler pipe main body. The manufacturing method extrudes a first extruded tubular member and a second extruded tubular member, conveys molds arranged on both sides of the first extruded tubular member and the second extruded tubular member, and forms the first extruded tubular member and the second extruded tubular member corresponding to molding surfaces of the molds, so as to mold the filler pipe main body and the breather pipe. The manufacturing method then thermally welds part of the second extruded tubular member with an outer wall of the first extruded tubular member and closes an opening end of the breather pipe to form a welding joint portion. A connection hole for connecting the conduit of the filler pipe main body with the conduit of the breather pipe is formed in the welding joint portion with a tool inserted through an opening of the filler pipe main body.

Abstract: An engine cover has a cover body having a through hole penetrating both sides of the cover body in an area opposed to a resonant space in which resonant sounds are generated. An opening of the through hole is covered with the sound absorbing member layer. Because a part of the resonant space is open, resonant sounds generated in the resonance space are decreased.

Abstract: A filler neck includes a neck body made from resin, a retainer made of metal, and a sealing member securing a sealing property between the neck body and the retainer. The neck body has an upstream end, a fuel supply opening opened at the upstream end, a downstream end communicating with a fuel tank, an outer peripheral surface, an inner peripheral surface, and a flange disposed on the outer peripheral surface and being fixed to a vehicle-side member. The fuel supply opening is opened and closed by a fuel cap. The retainer has an engagement portion and an outer peripheral surface, and is fastened to the fuel cap. The engagement portion is engaged with the neck body. The sealing member is disposed between the inner peripheral surface of the neck body and the outer peripheral surface of the retainer.

Abstract: A fuel supply apparatus includes an inlet box, and a filler neck. The inlet box is dented in a vehicle panel, and has a bottom wall, a neck-penetrating opening pierced through the bottom wall, a box-side axial engagement portion and a box-side radial engagement portion. The filler neck is disposed to penetrate through the neck-penetrating opening into the inlet box, and has an outer peripheral surface provided with a flange. The flange has a flange-side axial engagement portion engaging with the box-side axial engagement portion to regulate axial movements of the filler neck, and a flange-side radial engagement portion engaging with the box-side radial engagement portion to regulate radial movements of the filler neck. The fuel supply apparatus can be assembled with ease, and can be manufactured at reduced cost.

Abstract: A fuel tube having an ethylene-vinyl alcohol copolymer (EVOH) layer formed of an EVOH-based extruded EVOH material, and a modified HDPE layer formed of an extruded HDPE material which is based on modified high density polyethylene (modified HDPE) or is based on a polymer alloy containing mainly modified HDPE. The modified HDPE is a dicarboxylic acid-modified material having a melt mass flow rate value (190° C.: JIS K 7210) of about 0.2 to 10.0 g/10 min. The interlayer adherability between the EVOH layer 14 and the modified HDPE layer 16 is maintained while maintaining the anti-fuel permeability and the flexibility of the fuel tube 12.

Abstract: At least a part of a duct wall of a suction duct is formed out of a molded body of non-woven fabric. The non-woven fabric contains a thermoplastic resin binder.

Abstract: A resinous tube has opposite ends into one of which a mating member is fitted and with which the mating member is connected, and includes a sealing ring, a fastening cap, and a clamp. The sealing ring is disposed on an inner peripheral surface of the opposite end, and contacts elastically with an outer peripheral surface of the mating member. The fastening cap is disposed on the inner peripheral surface of the opposite end on an outer end side thereof with respect to the sealing ring, and contacts elastically with the outer peripheral surface of the mating member. The clamp is disposed on an outer peripheral surface of the opposite end, which is provided with the fastening cap on the inner peripheral surface, and tightens the fastening cap. The resinous tube exhibits good sealing and fastening abilities, requires less component parts, and can be connected with any mating members.

Abstract: An engine cover has such a structure that a cover body has a through hole penetrating both sides of the cover body in an area opposed to a resonant space in which resonant sounds are generated, and an opening of the through hole is covered with the sound absorbing member layer.

Abstract: The pipe connection assembly includes a connector 10 that connects a pipe P as well as a bellows tube 30 that is pressure-fitted onto the connector 10. The bellows tube 30 includes a connecting straight tube 34 that is located at the connection end of the bellows portion 32 and is formed as a straight tube having a diameter nearly equal to the maximum outer diameter of the bellows portion 32. The connector 10 includes a connector main body 12 having a pipe insertion hole 16 for inserting a pipe P. A nipple 14 is formed around the outer circumference of the connector main body 12. The nipple 14 is located at a position at which it overlaps with the pipe P inserted in the pipe insertion hole 16. The pipe connection assembly has a construction that is advantageous in arranging and handling hoses in narrow spaces.

Abstract: A lightweight and inexpensive soundproof material which is reclaimable comprises a thermoplastic resin substrate and a non-woven cloth laminated on a surface of the substrate and made from thermoplastic resin fibers different from the material of the substrate. The assembly of fibers and the substrate are bonded together integrally through a joint interface which is at least partially molten by ultrasonic vibration.

Abstract: A soundproofing material 10 is applied to a vehicle hood panel 14 on the side facing the engine compartment. The soundproofing material 10 as a whole has a sheet-like form and includes a pulverized rubber layer 11 containing rubber grains of various kinds of material, various sizes and various shapes and covering layers 12 which cover the pulverized rubber layer 11. Noises are absorbed topically by a number of rubber grains within the soundproofing material 10 and by air gaps present between the rubber grains. While noise generating sources such as an engine, an induction system unit, transmissions and so on are housed in the engine compartment, noises ranging over a plurality of wavelength are generated by them yet are absorbed by the pulverized rubber layer 11, because the pulverized rubber layer 11 contains a mixture of rubber grains of various kinds, various sizes and various shapes, and the frequency level of the noise to be absorbed by each rubber grain is different piece by piece.

Abstract: There is obtained with greater efficiency a powder coating having an average particle diameter smaller and a particle size distribution range narrower than those currently made by conventional methods.