Abstract: A method for producing a resin sintered body 1 by applying an ink 3 to thermoplastic resin powder 2 and sintering the powder, the method including the step of immersing an intermediate resin sintered body 1m, which has an unevenly colored region on the surface thereof and the whole of which has been already sintered, in a surface treatment liquid containing sulfuric acid and chromic anhydride, in which the concentration of chromic anhydride is 300 g/L or more, for 5 minutes or longer. When producing a resin sintered body by sintering thermoplastic resin powder, the surface of the resin sintered body can be evenly and sufficiently colored to an extent required without an unevenly colored region on the surface thereof, and also the surface of the resin sintered body can have a good appearance and smoothness.

Abstract: A tube end member to be provided at an end of a flange tube includes a tubular part configured to be fitted to an end of a tube body of the flange tube, a flat part formed by bending an end of the tubular part outwards at a substantially right angle, in an opposite side to a fitting side of the tubular part to be fitted to the tube body, an extending part formed by bending an outer end of the flat part at a substantially right angle towards the tubular part, a tapered part extending at an angle from an edge of the extending part so as to approach the tubular part, and a folded-back part folded back from an edge of the tapered part into a space S enclosed by the tubular part, the flat part and the extending part. The folded-back part abuts on the tapered part.

Abstract: A silencing apparatus is provided with a shell, ventilation pipes communicating with the inside of the shell, insertion holes which are respectively formed in the shell so as to have sizes smaller than surrounding skirt parts and allow the ventilation pipes to be loosely inserted in, and partitions partitioning the inside of the shell. In the silencing apparatus, at least, a sound-absorbing chamber partitioned by the partition and positioned adjacent to the insertion hole is filled with a sound-absorbing fiber material, and a sound-absorbing fiber material filling gap between the insertion hole and the ventilation pipe is closed by an annular closing member. To provide a silencing apparatus allowing a sound-absorbing chamber to be filled with sound-absorbing fiber material without a gap, even in a complicated configuration having the inside of a shell partitioned by a partition.

Abstract: Disclosed is a radome 1 for vehicle-mounted radar devices including a base body 2 having an electromagnetic wave permeable substrate 3 and a heater wire 41 laminated on an inner surface side of the substrate 3 and wired in a surface direction of the substrate 3, in which linear portions 411 of the heater wire 41 are arranged side by side at intervals in the surface direction of the substrate 3 in an electromagnetic wave irradiation region R of the substrate 3, and a surface occupancy ratio of the linear portions 411 of the heater wire 41 in the electromagnetic wave irradiation region R of the substrate 3 is set to 1% or more and 24% or less. It is possible to exhibit a practical snow-melting function as a radome for vehicle-mounted radar devices while suppressing attenuation of electromagnetic waves irradiated by a vehicle-mounted radar device within an allowable range.

Abstract: Disclosed is a radome structure for vehicle-mounted radar devices, in which a planar heating element 2 is laminated and fixed onto a substrate 1 of the radome, a local recess 3 is provided so as to protrude from the substrate 1, a connecting body 4 for electrically connecting an electrode of a heater wire 21 of the planar heating element 2 to a power supply line 5 to the planar heating element 2 is accommodated in the recess 3, and the recess 3 is filled with an insulating resin 6 so as to embed and seal the connecting body 4. It is possible to simplify a connection structure and a waterproof structure of a connecting portion for electrically connecting the heater wire and the power supply line of the radome, and reduce the manufacturing cost of the radome structure having a snow melting function.

Abstract: In this battery heat exchange structure, a heat exchange panel 42 and a battery cell 41 are closely arranged side by side so that a heat exchange wall 421 of the heat exchange panel 42 in which a heat exchange fluid circulates follows a side surface 411 of the battery cell 41, and the heat exchange wall 421 following the side surface 411 of the battery cell 41 is formed of a flexible thin plate. Preferably, a flow path wall 425 defining a flow path through which the heat exchange fluid circulates along the heat exchange wall 421 is provided in the heat exchange panel 42 so as to be able to expand and contract in an erecting direction. This battery heat exchange structure can perform heat exchange between the heat exchange panel and the battery cell with high efficiency and stably maintain high heat exchange efficiency even when the battery cell expands.

Abstract: A heat-insulated container for beverages includes: a wooden or bamboo inner cylinder having a substantially cylindrical shape with a closed bottom; a wooden or bamboo outer cylinder having a substantially cylindrical shape with a closed bottom; and a fit body where decompressed space is provided between an inner wall having a substantially cylindrical shape with a closed bottom and an outer wall having a substantially cylindrical shape with a closed bottom. The fit body is fitted over the inner cylinder in such a manner as to cover a bottom part and a peripheral wall part around beverage storage space of the inner cylinder. The outer cylinder is fitted over the fit body in such a manner as to cover a bottom part and a peripheral wall part of the outer wall of the fit body.

Abstract: A thermal insulation panel is characterized in that first flange parts are formed at an edge part on one side of an axis direction of a flattened metal cylinder and the first flange parts are overlaid on and welded to each other in such a manner as to close the one edge part, second flange parts are formed at an edge part on the other side of the axis direction of the flattened metal cylinder and the second flange parts are overlaid on and welded to each other in such a manner as to close the other edge part, and thermal insulation space is provided inside the flattened metal cylinder. A welding length is shortened significantly and welding operation is reduced during manufacture of the thermal insulation panel to achieve improvement of manufacturing efficiency and achieve reduction in manufacturing cost.

Abstract: In this battery heat exchange structure: a battery cell and a heat exchange panel are closely arranged side by side so that a heat exchange surface of the heat exchange panel follows a side surface of the battery cell, a flow path wall defining a flow path through which a refrigerant circulates along the heat exchange surface is provided in the heat exchange panel, and a storage space surrounded by the flow path wall is filled with a latent heat storage material that undergoes a phase change at a temperature lower than a temperature of the refrigerant F when the refrigerant is supplied. As a result, the heat exchange efficiency between the heat exchange panel and the battery cell can be increased, and the temperature of the battery can be controlled to be within an appropriate temperature range.

Abstract: Provided is a muffler valve 1 that opens and closes an exhaust passage according to a pressure of an exhaust gas of an engine. A valve body 3 is swingably supported by a support shaft 4 with respect to a valve seat 2 having an opening 22, the valve body 3 is urged in a closing direction by a coil spring 5 externally inserted on the support shaft 4, a valve seat hook portion 23 is provided so as to embrace both ends of the support shaft 4 in a circumferential direction and is fixed to the support shaft 4, and a valve body winding portion 34 is provided so as to embrace the coil spring 5 in the circumferential direction from a direction opposite to the valve seat hook portion 23 and embrace the coil spring 5 over an entire length of the coil spring 5 in the circumferential direction.

Abstract: A plated molded article 1 is characterized in that a partial region R in a surface 21 of a base material 2 is provided with a plurality of non-penetrating holes 4 of substantially corresponding shapes and substantially corresponding sizes that are formed in a scattered pattern in such a manner as to be separated from each other at a substantially averaged hole density, and a plated part 3 is formed while filling the non-penetrating holes 4 and is provided continuously over the partial region R in such a manner as to extend across the non-penetrating holes 4. It is possible to obtain a plated molded article capable of forming a required plated part in a short time on a surface of a base material and capable of improving smoothness of an outer surface of the plated part and adhesion property of the plated part.

Abstract: A circuit part is provided that provides both high heat dissipation and high adhesion of its circuit wiring. A circuit part includes: a metal member; an insulating resin layer located on the metal member; circuit wiring including a plating film located on the insulating resin layer; and a mounted component mounted on the circuit wiring and electrically connected to the circuit wiring, wherein a plurality of non-penetrating holes are provided in a wiring region, the non-penetrating holes being filled with the plating film, the wiring region being a portion of the resin-layer surface on which the circuit wiring is located, and the ratio of the depth d of the non-penetrating holes to the width D of the non-penetrating holes, d/D, is 0.5 to 5.

Abstract: A battery heat exchange structure in which a battery cell 41 and a heat exchange panel 42 are closely arranged side by side so that a heat exchange surface 421 of the heat exchange panel 42 follows a side surface 411 of the battery cell 41, the heat exchange panel 42 is formed so that a heat exchange fluid F can be recirculated along the heat exchange surface 421, and the heat exchange panel 42 and the battery cell 41 are elastically urged so as to be compressed in the arrangement direction. This battery heat exchange structure can increase heat exchange efficiency between the heat exchange panel and the battery cell and can increase the stability of heat exchange.

Abstract: Provided is a muffler valve 1 which is attached to a separator partitioning the inside of a muffler and opens and closes an exhaust passage according to the pressure of an exhaust gas of an engine. A valve body is swingably supported by a support shaft with respect to a valve seat. The valve body is urged in a closing direction by a spring member externally inserted to the support shaft. A valve seat substrate of the valve seat arranged along the separator is formed in a substantially flat-plate ring shape having an opening in the center. A valve body substrate of the valve body is formed in a flat dish shape having a flat rim. The muffler valve provides excellent handleability during attachment and can reduce the manufacturing cost of the muffler, improve manufacturing efficiency, and maintain high durability of the muffler.

Abstract: This battery insulation structure includes a double-walled insulating container 1 including an insulating container main body 2 in which an insulating space S1 is provided between an inner wall 21 and an outer wall 22, and an insulating lid 3 in which an insulating space S2 is provided between an inner lid 31 and an outer lid 32, and a battery body 4 housed in the insulating container 1, wherein the battery body 4 is arranged to be spaced apart from the inner wall 21 of the insulating container main body 2 and the inner lid 31 of the insulating lid 3. This battery insulation structure can be adapted to both a very low-temperature external environment and a very high-temperature external environment, and can reduce the influence of the temperature of the external environment on the batter as much as possible.

Abstract: Provided is a heat exchange device 1 in which: a heat exchange path composed of a plurality of heat exchange branch paths ER1 and ER2 and a detour path DR are provided inside a base structure 2 having a fluid introducing portion 21 and a fluid discharging portion 22; a heat exchange portion 4 through which a heating target fluid is arranged in each of the heat exchange branch paths ER1 and ER2; and a switching portion is provided that can switch a flow of heated fluid circulating through the base structure 2 so as to be regulated to either the heat exchange path or the detour path DR. A heat exchange device having excellent heat exchange performance and capable of shortening the length and reducing the size is provided.

Abstract: A method of manufacturing a bright surface product comprises a step of performing electroless plating to form a first metal film on a base coat layer formed on a substrate, a step of performing electrolytic plating to form a second metal film thereon so that the bonding strength between each film of a multi-layered metal film comprising the first metal film and the second film is higher than the bonding strength between the base coat layer and the first metal layer, a step of integrally and discontinuously segmentalizing the multi-layered metal film with cracks to form an island-like metal film comprising a collection of fine multi-layered metal regions with island-like structures; and a step of forming a translucent top coat layer to cover the fine multi-layered metal regions of the island-like metal film and enter into the cracks to make contact with the base coat layer.

Abstract: A method for producing a resin sintered body 1 by applying an ink 3 to thermoplastic resin powder 2 and sintering the powder, the method including the step of immersing an intermediate resin sintered body 1m, which has an unevenly colored region on the surface thereof and the whole of which has been already sintered, in a surface treatment liquid containing sulfuric acid and chromic anhydride, in which the concentration of chromic anhydride is 300 g/L or more, for 5 minutes or longer. When producing a resin sintered body by sintering thermoplastic resin powder, the surface of the resin sintered body can be evenly and sufficiently colored to an extent required without an unevenly colored region on the surface thereof, and also the surface of the resin sintered body can have a good appearance and smoothness.

Abstract: A tube end member to be provided at an end of a flange tube includes a tubular part configured to be fitted to an end of a tube body of the flange tube, a flat part formed by bending an end of the tubular part outwards at a substantially right angle, in an opposite side to a fitting side of the tubular part to be fitted to the tube body, an extending part formed by bending an outer end of the flat part at a substantially right angle towards the tubular part, a tapered part extending at an angle from an edge of the extending part so as to approach the tubular part, and a folded-back part folded back from an edge of the tapered part into a space S enclosed by the tubular part, the flat part and the extending part. The folded-back part abuts on the tapered part.

Abstract: A radome for on-board radar devices 1 is provided with heater wires 3 wired in parallel so as to be separated from each other in a plane direction of an electromagnetic-wave-transmitting base member. A line pitch d of the heater wires 3 arranged in parallel in an electromagnetic-wave transmission region R of the base member is set to 0.2 to 2.5 times a wavelength of electromagnetic waves of the radar of an on-board radar device. A surface occupancy rate of the heater wires 3 arranged in parallel in the electromagnetic-wave transmission region R of the base member is set to be greater than 10% to 35%. The present invention provides a radome for on-board radar devices with which it is possible to obtain an electromagnetic-wave transmission property required of a radome, and to melt snow satisfactorily with a high heater performance.