The invention relates to a method for assembling a first and a second part of a lighting device for a vehicle by mirror welding, including a step of supplying the parts wherein each part comprises, in the interface area thereof for contact with the other part, a weld bead intended to come into contact against the weld bead of the other part during the mirror welding, the weld bead of at least one of the parts is provided with a plurality of expander ribs (N) spread out along the weld bead, in such a way as to locally expand the width of the weld bead.

A first object is anchored in a second object. The first object has a material with thermoplastic properties, and the second material has a material that is solid and is penetrable by the first material when in a liquefied state. The second object has an insertion face with an opening having a mouth in the insertion face, and the first object has an insert portion that for anchoring is placed in the opening or about the mouth thereof. For anchoring, energy suitable for liquefaction of the first material impinges in an amount and for a time sufficient for at least partial liquefaction of the first material and interpenetration of the first and second materials. The second object, around the opening, has an anisotropic strength with respect to forces perpendicular to the opening axis.

A method for manufacturing a radar cover which covers a radar unit configured to detect surrounding conditions of a vehicle includes: preparing a base having a recessed portion formed of a transparent layer and comprising a colored layer stacked on a portion other than the recessed portion, and a shining member comprising a basal portion including a shining layer on a surface thereof and an edge portion; arranging the base and the shining member such that the edge portion of the shining member and the colored layer of the base are in contact with each other and the shining layer of the basal portion and the recessed portion face each other; and fixing the edge portion and the colored layer to each other.

A sealing structure for a front cover of an engine includes a front cover made of resin of an engine in which a through-hole, into which a boss part of a torsional damper is to be inserted, is provided, and a sealing apparatus to seal between the through-hole of the front cover and the shaft part. The sealing apparatus includes a support ring that is made of resin and has an annular shape, and an elastic body part that is made of an elastic material, has an annular shape and is attached to the support ring. The elastic body part has an annular seal lip that contacts the shaft part such that the shaft part is able to slide, and the support ring is bonded to the front cover.

A flow sensor includes an auxiliary channel having an opening into which a fluid to be measured is taken; a sensor element that measures the flow of the fluid to be measured; a housing that accommodates electronic parts; and a resin cover. The flow sensor is configured such that junctions of the housing and the cover are formed in locations where first target weld portions, which are formed so that the circuit chamber is surrounded, face each other and second target weld portions, which are disposed for additional reinforcement of the joints, face each other on a bonding face of the housing and a bonding face of the cover with a step being provided. The positioning of the housing and the cover is determined, and the first target weld portions are welded to each other and second target weld portions are welded to each other by way of laser radiation.

Exposure of a leftover material at a cartridge that forms a vapor product is prevented. There is provided a cartridge that is assembled in a part of a vapor product that includes a heating element for heating an aerosol source. The cartridge includes a first component and a second component, at least one of which being formed of resin, and a connection section whose one end is connected to the first component and whose another end is joined or welded to the second component. The first component includes a first facing surface that faces the second component, and a first outermost edge of the first facing surface. The second component includes a second facing surface that faces the first component, and a second outermost edge of the second facing surface. The first outermost edge and the second component are not joined or welded to each other, and the second outermost edge and the first component are not joined or welded to each other.

A welding structure includes a first object and a second object connected to each other. The first object includes a first surface, a second surface, a first bonding surface, a welding portion and a second bonding surface. The first bonding surface is connected to one side of the second surface away from the first surface. The welding portion is disposed on a surface perpendicular and connected to the first bonding surface. One side of the second bonding surface is connected to the welding portion. The second object includes a third surface, a fourth surface, a third bonding surface and a fourth bonding surface. The third bonding surface is corresponding to the first bonding surface and connected to one side of the fourth surface away from the third surface. The fourth bonding surface is corresponding to the welding portion and the second bonding surface.

The lid portion has a first body, a first rib protruding from the first surface of the first body and extending along the first surface, and the storage section has a second body, a second rib protruding from the second surface of the second body and extending along the second surface. The first and second ribs have main welded portions welded at intersections crossing each other, and the lid portion and/or the storage portion has main welded portions extending from one of the first and second ribs to the other between the main welded portions adjacent to each other. The lid portion and/or the storage section has an auxiliary rib extending from one of the first and second ribs to the other between the adjacent main welded portions, and the auxiliary rib has a sub-welded portion that is welded to the other at the intersection with the other.

A method of integral hot-melt adhesion of a bicycle saddle contains steps of: a) providing material; b) putting the material into at least one mold; c) inserting a heating plate; d) melting; e) removing the heating plate; f) hot-melting adhesion; and g) taking out. Thereby, the body includes the rubber shell, the flexible layer, and the covering layer. The rubber shell is connected with the support shell by a hot-melting manner so that a peripheral side of the covering layer is bent to and is connected on the bottom of the rubber shell, thus obtaining a security, a smooth appearance, a moisture-proof purpose, a waterproof purpose, a shock absorption, a heat dissipation, an easy cleaning, and a low fabrication cost.

A battery assembly, such as a bipolar battery assembly, generally includes a first casing portion comprising an optically-absorbing region, and a second casing portion comprising an optically-transmissive region. The first and second features form a welded joint. Fabrication of such an assembly can include physically mating the first casing portion with the second casing portion, and irradiating, such as using a laser, the optically-absorbing region defining the first feature through the optically-transmissive region to form the welded joint.