Abstract: To provide a vehicle body frame for a motorcycle which includes a head pipe having good dimensional accuracy. A head pipe includes a left half which is obtained by die forming, a right half which is obtained by die forming, and beads with which the right half is integrated with the left half by laser welding. The head pipe is formed by joining the left half and the right half to each other with the first and second beads which are laser weld beads. Laser weld beads are significantly smaller in bead width than arc weld beads, and therefore their shrinkage after their solidification is significantly smaller. As a result, a head pipe having good dimensional accuracy is obtained.

Abstract: A vehicle body frame manufactured by welding is configured for weight reduction, and includes first and second frame members. The first frame member has a predetermined thickness including a first flat surface portion wider than the predetermined thickness. The second frame member includes a second flat surface portion touching the first flat surface portion. The first and second frame members are joined by bringing the flat surface portions together and welding the first and second flat surface portions together with laser beams parallel to the first flat surface portion. In this way, the laser welding can be performed with a reduced gap between the two members. Welding using laser beams applied from directions parallel to the flat surfaces allows the weld area to be significantly larger than conventional fillet welding.

Abstract: In a three-dimensional image generation apparatus, a CPU concatenates meshes of a plurality of objects which meet a predefined concatenation condition, and performs in advance vertex attribute transformation on the plurality of objects of which the meshes have been concatenated. The CPU regards as a single object, the plurality of objects on which the vertex attribute transformation has been performed, and transfers a rendering command, which instructs rendering of the plurality of objects regarded as the single object, to a GPU. The GPU renders, at a time, the plurality of objects that are regarded as the single object, upon receiving the rendering command from the CPU.

Abstract: A fuel tank and pump assembly is provided for supporting a fuel pump on a fuel tank, with a pump support member provided on a tank outer wall of the fuel tank. The fuel pump includes a pumping portion which is inserted into the fuel tank through a pump attachment opening formed a main tank body of the fuel tank. The pump support member includes a plurality of arcuate support plate elements arranged around the pump attachment opening. The fuel pump is secured to fastening sections provided on the support plate elements, and is attached to a main tank body at the pump attachment opening in a sealed, liquid tight manner.

Abstract: A vehicle body frame for a saddle-ride type vehicle is manufactured by laser welding, and has good dimensional accuracy in a vehicle length direction. A pivot frame includes a grooved member, a lid member put on an opening of the grooved member, and laser-weld beads with which this lid member is joined to the grooved member. The molten metal shrinks during its solidification, and shrinkage occurs in the vehicle width direction. However, no shrinkage occurs in the vehicle longitudinal direction. As a result, the distance between a head pipe and a pivot shaft is maintained properly.

Abstract: A frame for a motorcycle has good flexibility in a left-right direction. The frame includes left and right main frames extending from a head pipe, pivot frames extending downwardly from respective rear ends of the main frames; and a down frame extending downwardly from the head pipe below the main frames. A reinforcement frame connects the down frame and the main frames together. The frame supports an engine, and the pivot frames swingably support a swing arm thereon. The left and right main frames curve so that a gap formed between the left and right main frames in a vehicle width direction increases from the head pipe toward the rear, while a section height of each of the main frames, in a direction orthogonal to an extending direction of the main frame, decreases from the head pipe toward the rear.

Abstract: A vehicle body frame manufactured by welding is configured for weight reduction, and includes first and second frame members. The first frame member has a predetermined thickness including a first flat surface portion wider than the predetermined thickness. The second frame member includes a second flat surface portion touching the first flat surface portion. The first and second frame members are joined by bringing the flat surface portions together and welding the first and second flat surface portions together with laser beams parallel to the first flat surface portion. In this way, the laser welding can be performed with a reduced gap between the two members. Welding using laser beams applied from directions parallel to the flat surfaces allows the weld area to be significantly larger than conventional fillet welding.

Abstract: To provide a vehicle body frame for a motorcycle which includes a head pipe having good dimensional accuracy. A head pipe includes a left half which is obtained by die forming, a right half which is obtained by die forming, and beads with which the right half is integrated with the left half by laser welding. The head pipe is formed by joining the left half and the right half to each other with the first and second beads which are laser weld beads. Laser weld beads are significantly smaller in bead width than arc weld beads, and therefore their shrinkage after their solidification is significantly smaller. As a result, a head pipe having good dimensional accuracy is obtained.

Abstract: A clip couples a first member with a first through-hole, and a second member with a second through-hole. The clip includes a flexible cylindrical portion having a predetermined center axis line, opening two ends, and formed so that a distance from the center axis line to an outside surface is different in a rotational direction around the center axis line. The center axis line is orthogonal to an axis line of the coupling hole, and the cylindrical portion is inserted into a coupling hole rotatably between a first rotational position and a second rotational position around the center axis line. The cylindrical portion is set to have a distance between the center axis line and the outside surface to be loosely fitted in the coupling hole at the first rotational position and to be clamped between hole walls of the coupling hole at the second rotational position.

Abstract: Lateral sides of an engine and a fuel tank are covered with a tank cowling formed by connecting a front cowling and a rear cowling. The front cowling is provided with a flange in which a through hole is formed. The long sides of the through hole are formed in parallel with a cylinder axis of a cylinder section. A gate provided on a lower connecting edge portion of the rear cowling with which the flange overlaps is inserted into the through hole and connected by the clip. The front cowling and the rear cowling are fastened through a bolt on a vehicle body side above and below the connecting section by the clip. With this structure, the force applied to the connecting section is reduced and the connecting section is decreased in size.

Abstract: In an aspect, the present disclosure relates to a polyamide solution including aromatic polyamide and a solvent. A dimension change gap between a cast film of the polyamide solution and the cast film after being subjected to a heat treatment is not more than a predetermined value. In another aspect, the present disclosure relates to a method for manufacturing a display element, an optical element, an illumination element or a sensor element, including a step of forming a polyamide film by using the polyamide solution.

Abstract: A clip includes a clip body, displacement portions, engagement portions and curved protruding portions. The clip body can be accommodated between a first through-hole of a protruding portion of a first object to be fixed and a second object to be fixed. The displacement portions are provided on both end portions of the clip body along a virtual line. The engagement portions are provided at leading end side of the displacement portions so as to engage with the protruding portion when the clip body is pulled out from the first through-hole. The curved protruding portions provided at both end portions of the clip body and each are engaged with a curved corner portion formed in the second object to be fixed when the clip body is pulled out from the first through-hole.

Abstract: Provided is a substrate with a built-in electronic component that can minimize an occurrence of a deformation such as warping or distortion of the substrate with a built-in electronic component, which is caused by a difference in rigidity between a region of low rigidity and a region of high rigidity that are formed in a core layer thereof. In the substrate with a built-in electronic component, electronic components 12 are respectively housed in a plurality of housing portions 11a1 that are formed in a core layer 11a, and in the core layer 11a, a plurality of openings 11a2 filled with an insulator 11k are formed.

Abstract: Provided are a resin composition and a substrate that are capable of being used for manufacturing an electronic device having excellent light extraction efficiency. The resin composition contains a polymer and a solvent dissolving the polymer. The resin composition is used to form a layer, and when refractive indexes of the layer along two perpendicular in-plane directions thereof are respectively defined as “Nx” and “Ny” and a refractive index of the layer along a thickness direction thereof is defined as “Nz”, Nx, Ny and Nz satisfy a relationship of “(Nx+Ny)/2?Nz”>0.01. Further, a method of manufacturing the electronic device by using such a substrate, and the electronic device are also provided.

Abstract: In a cowling fastening structure (1) for fastening a first cowling member (2) and a second cowling member (3) to each other by using a clip (30), the two cowling members are provided with opposing walls (13, 21) having a mutually aligned through holes (15, 26) formed therein, the clip is provided with a first member (31) and a second member (32) joined by a hinge (33). A free end of the first member formed with an engagement hole (39) is passed through the through holes, and a free end of the second member formed with an engagement claw (44) is passed around the opposing walls so as to engage the engagement claw with the engagement hole.

Abstract: The present disclosure, in one aspect, relates to a polyamide solution including an aromatic polyamide and a solvent, wherein the aromatic polyamide includes at least two types of constitutional units, and a change rate of coefficient of thermal expansion (CTE) of a cast film produced by casting the polyamide solution on a glass plate and CTE of the same cast film after being subjected to a heat treatment at temperature of 200° C. to 450° C. (=CTE after heat treatment/CTE before heat treatment) is 1.3 or less.

Abstract: A fuel tank and pump assembly is provided for supporting a fuel pump on a fuel tank, with a pump support member provided on a tank outer wall of the fuel tank. The fuel pump includes a pumping portion which is inserted into the fuel tank through a pump attachment opening formed a main tank body of the fuel tank. The pump support member includes a plurality of arcuate support plate elements arranged around the pump attachment opening. The fuel pump is secured to fastening sections provided on the support plate elements, and is attached to a main tank body at the pump attachment opening in a sealed, liquid tight manner.

Abstract: A mudguard structure for a straddle-ride vehicle suppresses the enlargement of an attachment portion of a mud shield plate and makes satisfactory the external appearance of the circumference of a rear fender. A mudguard has left and right erecting walls erecting to the rear from respective left and right outer edges thereof and a front-lower concave portion integrally continuing into a lower portion of a rear wheel runout concave portion of a rear fender. A box-like attachment portion for attachment to the rear fender is located at each of both, left and right, sides of the upper end portion of the mudguard.

Abstract: A saddle-ride vehicle includes a radiator body having a first radiator and a second radiator each including a core composed of radiating fins and tubes, alternately laminated. The radiator body is disposed forward of an engine while sandwiching a down tube between the first and second radiators in a vehicle left-right direction with the down tube extending rearwardly and downwardly of a head pipe. The radiator bodies and an exhaust pipe connected to the engine are disposed in an overlapping manner when the vehicle is viewed in a plan view. The lower tank of the first radiator include an inlet for the coolant from a lower communicating radiator hose that allows coolant to flow from the lower tank of the second radiator and an outlet for the coolant to a lower end radiator hose that is connected from the lower tank of the first radiator to the engine.

Abstract: A radiator structure includes a radiator body having a core composed of radiating fins and cooling water passing tubes alternately laminated and a bracket disposed at one end of the core. The bracket includes an extension portion disposed at a vehicle widthwise inner end of the core and extending along a vehicle front-rear direction. The extension portion has a fixing portion on a leading end thereof, the fixing portion being fixed to a mounting portion of a body frame. An indentation is provided in a portion of an opposed sidewall where a front end of the core and the opposed sidewall of the bracket overlap each other when the vehicle is viewed from the side and which overlaps the fixing portion at least in the vehicle front-rear direction. The indentation is formed by bending the opposed sidewall in a direction away from the front end.