Abstract: One aspect of the present disclosure is a manufacturing device for a bent pipe by which the bent pipe is obtained by bending a double pipe. The manufacturing device for a bent pipe includes an inner core metal, an intermediate core metal, a bending mold, and a controller. The controller executes a first bending process, a second bending process, and a re-bending process. In the first bending process, a first pipe and a second pipe are bend in a first direction in a first area. In the second bending process, the first pipe and the second pipe are bent in a second direction in a second area. The second area has more distance from a coupling portion than the first area does. In the re-bending process, the second pipe is bent in the same direction as the second direction in the second area.

Abstract: Provided is a fixing member which is used for fixing a component to a target member. The fixing member includes two holding portions, a joining portion, and a projecting portion. The two holding portions are configured to hold the target member from both sides. The joining portion connects two first ends of the two holding portions. The projecting portion protrudes from the joining portion toward an opening between two second ends of the two holding portions. The two second ends are opposite the two first ends of the two holding portions. The projecting portion has an end close to the opening, and the end protrudes further than at least one of the two second ends of the two holding portions in a direction where the projecting portion protrudes from the joining portion.

Abstract: A front pillar substructure that enables reduction in deformation of a front pillar. One embodiment of the present disclosure provides a front pillar substructure including a front pillar, and a rocker being joined to the front pillar. The front pillar includes an inner panel located inside with respect to the rocker, and an outer panel arranged so as to interpose the rocker between the inner panel and the outer panel. The outer panel includes an upper panel, and a lower panel overlapped with and joined to the upper panel, the lower panel extending downward with respect to the upper panel. The upper panel or the lower panel includes a bent section bending in the width direction when viewed from the front-rear direction, the bent section being located inside with respect to a joint region where the upper panel and the lower panel are joined.

Abstract: A canister includes a filling chamber and an internal structure. The filling chamber is filled with activated carbon. The internal structure includes a first component and a second component that are arranged in the filling chamber. The first component is located at a position that is different from a position of the second component in a flow direction of an evaporated fuel in the filling chamber and is positioned such that at least a portion thereof does not overlap in position with the second component when projected onto a plane perpendicular to the flow direction.

Abstract: Provided is a muffler that can reduce sound pressure of a standing wave in an outlet pipe and, at the same time, can inhibit generation of flow noise. In one aspect of the present disclosure, the muffler includes a housing, an outlet pipe, a cover that covers the outlet pipe. The outlet pipe includes an outlet end and at least one communication hole. The outlet end opens into the housing. The at least one communication hole is formed in an outer circumferential surface of the outlet pipe. The cover includes a wall portion and an opening. The wall portion is disposed to overlap with the at least one communication hole in a radial direction of the outlet pipe. The opening communicates the at least one communication hole and an internal space of the housing with each other.

Abstract: An evaporated fuel treatment device includes a main adsorption chamber and a sub adsorption chamber. The sub adsorption chamber includes a first adsorption layer, a second adsorption layer and a high-desorption layer. The second adsorption layer is situated closer to an atmosphere port than the first adsorption layer is, and has a lower performance of adsorbing fuel vapor than the first adsorption layer does. The high-desorption layer is situated closer to the main adsorption chamber than the first adsorption layer is, and a higher performance of desorbing the fuel vapor than the first adsorption layer or the second adsorption layer does.

Abstract: One aspect of the present disclosure is a manufacturing device for a bent pipe. The manufacturing device includes an inner core metal placed inside a first pipe, and a tubular intermediate core metal placed between the first pipe and a second pipe. The intermediate core metal includes an intermediate core metal main body and a tubular first intermediate movable portion. The first intermediate movable portion is coupled to an end portion of the intermediate core metal main body, and swings about a first intermediate pivot axis relative to the intermediate core metal main body. The intermediate core metal main body includes an edge positioned closer to the first intermediate movable portion while the double pipe is bent. The edge intersects an imaginary plane orthogonal to a central axis of the second pipe at a position where the second pipe contacts the intermediate core metal.

Abstract: Firstly, an upper base material is disposed above a lower base material. Secondly, a laser beam is irradiated so that an area irradiated with a laser beam at a time of melting start is formed on only an upper surface of the upper base material or on only both the upper surface and an end surface of the upper base material, whereby the end surface of the upper base material and the lower base material are fillet welded. With the end surface as a reference, a side the upper surface and the lower surface are positioned is a first side, and an opposite side of the first side is a second side. The laser beam is set such that an intensity of the laser beam is lower toward the second side from the first peak area within the irradiation area of the laser beam.

Abstract: Provided is a method of manufacturing a pipe including a large-diameter portion, a small-diameter portion, and a reduced diameter portion connecting the large-diameter portion and the small-diameter portion, the method comprising: forming a metal plate member into a U-shaped member having a U-shaped cross section; and forming the U-shaped member into a shape of the pipe. The U-shaped member includes: a curved portion facing an opening between both edges of the U-shaped cross section; and two facing side walls continued from the curved portion. An opening degree of the two facing side walls in a portion to form the small-diameter portion is larger than an opening degree of the two facing side walls in a portion to form the large-diameter portion.

Abstract: An exhaust pipe with a double pipe structure that can reduce generation of a turbulent flow of exhaust gases is provided. In one aspect of the present disclosure, the exhaust pipe includes a double pipe and a retention member. The double pipe includes an inner pipe and an outer pipe. The retention member is disposed in a gap provided between an outer circumferential surface of the inner pipe and an inner circumferential surface of the outer pipe. The retention member is disposed at at least one end of the double pipe. At the end of the double pipe where the retention member is disposed, a radial clearance between the outer circumferential surface of the inner pipe and the inner circumferential surface of the outer pipe at an opening of the inner pipe is smaller than the radial clearance in an arrangement area where the retention member is disposed.

Abstract: Provided is a tail pipe in which a silencing effect at a discharge port is obtained. One aspect of the present disclosure is a tail pipe including: an inner tube including a discharge port configured such that an exhaust gas is discharged therefrom; an outer tube arranged so as to form a space between the outer tube and the inner tube by surrounding an outer peripheral surface of the inner tube, an upstream end of the outer tube in a flow direction of the exhaust gas being closed; and at least one communication hole allowing communication between an interior of the inner tube and the space.

Abstract: A side bracket includes at least one body fastening portion to be fastened to a body of a vehicle, an inner fastening portion, an outer fastening portion, an inner joining part, and an outer joining part. The inner joining part is provided in a rim surrounding a through hole in the inner fastening portion, and in a position closer to a central side in a vehicle-width direction than at least one body fastening portion, the inner joining part is joined to an outer circumferential surface of the steering member penetrating the through hole. The outer joining part is provided in the outer fastening portion, and in a position closer to an end side in the vehicle-width direction than at least one body fastening portion, the outer joining part is joined to a front portion of the outer circumferential surface of the steering member.

Abstract: Provided is a device for manufacturing a bent pipe, the device being capable of reducing buckling. The device including: an inner core metal arranged inside a first pipe; and a bending mold to bend the first pipe. The inner core metal includes: an inner core metal body; a first inner movable portion coupled to the inner core metal body and swingable around a first rocking shaft orthogonal to a central axis of the inner core metal body; and a second inner movable portion coupled to the first inner movable portion and swingable around a second rocking shaft parallel to the first rocking shaft. The first inner movable portion has an enlarging diameter portion enlarged in diameter toward the second inner movable portion. The bending mold causes an inner surface of the first pipe to press the first inner movable portion and the second inner movable portion.

Abstract: One aspect of the present disclosure provides an exhaust unit including a housing, a wall member, a catalyst, and a muffler chamber. The housing includes a feed inlet and a discharge outlet. The housing is configured such that an exhaust gas of an internal combustion engine is introduced from the feed inlet, and the exhaust gas is discharged from the discharge outlet. The wall member is disposed in the housing, and forms a cylindrical flow path that guides a flow of the exhaust gas introduced from the feed inlet to curve along an outer circumference of an interior of the housing. The catalyst is disposed in the flow path. The muffler chamber communicates with the flow path in a downstream side of the catalyst in the flow path. The wall member serves as a part of a wall that defines an inside and an outside of the muffler chamber.

Abstract: One aspect of the present disclosure is a manufacturing device by which the bent pipe is obtained by bending a double pipe. The device includes inner and intermediate core metals, a bending mold, and a controller. The controller executes: a first bending process in which first and second pipes are bent by the bending mold in a first direction in a first area of the double pipe where the inner and intermediate core metals are placed; a second bending process in which the first and second pipes are bent, after the first bending process, by the bending mold in a second direction in a second area of the double pipe where the inner and intermediate core metals are placed; and a first bending-back process in which the second pipe is bent, after the first bending process, in a direction opposite to the first direction in the first area.

Abstract: A pipe is formed by press molding a U-shaped member including a U-shaped cross section. The U-shaped cross section includes at least five curved portions. The curved portions include a center curved portion facing an opening of the U-shaped cross section defined by both edges of the U-shaped cross section; a first right curved portion; a second right curved portion; a first left curved portion; and a second left curved portion. At least the center curved portion, the first right curved portion, and the first left curved portion each have a radius of curvature smaller than a radius of curvature of a corresponding portion of the pipe cross section.

Abstract: In a manufacturing method of an assembly, the assembly including a metal part and a pipe, the pipe including a material containing a resin, an adhesive is first adhered to an outer circumferential surface of the pipe and a metal part covering at least a portion of an outer circumferential surface of the pipe. Here, an area to which the adhesive is adhered on the outer circumferential surface of the pipe is defined as an adhesion area. Next, by a heat source provided inside the pipe, a target area is heated without interposing the metal part. The target area is located radially interior to the adhesion area and located on an inner circumferential surface of the pipe.

Abstract: One aspect of the present disclosure is a welding method including welding an upper plate and a lower plate overlapped with the upper plate by irradiating a surface of the upper plate with a laser beam. The welding includes forming a main welding path that intersects a welding advancing direction and that includes turning points. The upper plate and the lower plate are arranged in an inclined manner with respect to a horizontal plane when viewed parallel to the welding advancing direction. In the forming the main welding path, an amount of energy applied by the laser beam in an area in a neighborhood of the turning point on a vertically upper side is designed to be larger than an amount of energy applied by the laser beam in an area in a neighborhood of the turning point on a vertically lower side.

Abstract: A muffler including a double-pipe structure to muffle sounds in two or more frequencies is provided. The muffler includes an inner and outer pipes with a clearance therebetween. The inner pipe includes a first and second outer surfaces, and, at one end, an opening communicating with the outer pipe. The clearance communicates with an exhaust passage via the opening. The second outer surface forms the opening and is situated closer to the center of the inner pipe than the first outer surface is. A space between the inner and outer pipes is closed due to a contact between the first outer surface and an inner-circumferential surface of the outer pipe. A part of the clearance is formed between the first outer surface and the inner-circumferential surface. The outer-circumferential surfaces of the inner pipe include at least one communication hole that communicates the inner pipe with the clearance.

Abstract: A radiator in a laser welding apparatus radiates a beam to a main region and an auxiliary region on a welding surface. The auxiliary region is positioned to be adjacent to the main region or to be apart from the main region. A welding direction is a direction in which a beam radiation region moves during laser welding. The auxiliary region includes at least an area positioned on a forward side of the main region in the welding direction. The radiator radiates the beam in a setting such that at least one peak occurs in each of the main region and the auxiliary region.