Abstract: A carbody of a railcar includes: a roof bodyshell; a supporting body provided under the roof bodyshell, the supporting body being attached to the roof bodyshell in a state of being positioned in the vertical direction; a rotating body which is threadedly engaged with the supporting body and rotates relative to the supporting body about an axis extending in a vertical direction to be displaced relative to the supporting body in the vertical direction; and a support target member supported by the roof bodyshell through the supporting body and the rotating body, the support target member being attached to the rotating body in a state of being positioned in the vertical direction, a vertical distance between the roof bodyshell and the support target member being adjustable by displacement of the rotating body relative to the supporting body.

Abstract: A railcar bodyshell includes: a plurality of modules into which at least one of a floor portion, side portion, and roof portion of the bodyshell is divided in a car longitudinal direction; and an elongated member extending in the car longitudinal direction, the plurality of modules being attached to the elongated member. The elongated member includes a groove portion for fixing the plurality of modules to the elongated member the groove portion extending in the car longitudinal direction.

Abstract: A carbody of a railcar includes: a roof bodyshell; a supporting body provided under the roof bodyshell, the supporting body being attached to the roof bodyshell in a state of being positioned in the vertical direction; a rotating body which is threadedly engaged with the supporting body and rotates relative to the supporting body about an axis extending in a vertical direction to be displaced relative to the supporting body in the vertical direction; and a support target member supported by the roof bodyshell through the supporting body and the rotating body, the support target member being attached to the rotating body in a state of being positioned in the vertical direction, a vertical distance between the roof bodyshell and the support target member being adjustable by displacement of the rotating body relative to the supporting body.

Abstract: A plurality of side modules include a first module, a second module and a third module extending between the first module and the second module in the carbody longitudinal direction and joined to the first module and the second module. A lower end portion of the first module and a lower end portion of the second module oppose and are joined to a floor bodyshell. A lower end portion of a region of the third module opposes the floor bodyshell, the region being located between the first module and the second module. The lower end portion of the region of the third module is freer with respect to the floor bodyshell than the lower end portion of the first module and the lower end portion of the second module. The third module is supported by the floor bodyshell through the first module and the second module.

Abstract: A floor structure of a railcar includes: a pair of side sills extending in a railcar longitudinal direction; cross beams extending in a railcar width direction and coupling the pair of side sills; a supporting member, which is arranged on upper surfaces of the cross beams, in which bottom surface portions and convex portions projecting upward from the bottom surface portions are alternately, continuously formed in the railcar width direction, and which extends in the railcar longitudinal direction; receiving members located at positions corresponding to the cross beams, arranged on an upper surface of the supporting member, and extending in the railcar width direction; and a floor panel arranged on upper surfaces of the receiving members. The receiving members include: a floor plate contact portion that contacts the floor panel; and leg portions, extending from the floor plate contact portion to the bottom surface portion of the supporting member.

Abstract: A plurality of side modules include a first module, a second module and a third module extending between the first module and the second module in the carbody longitudinal direction and joined to the first module and the second module. A lower end portion of the first module and a lower end portion of the second module oppose and are joined to a floor bodyshell. A lower end portion of a region of the third module opposes the floor bodyshell, the region being located between the first module and the second module. The lower end portion of the region of the third module is freer with respect to the floor bodyshell than the lower end portion of the first module and the lower end portion of the second module. The third module is supported by the floor bodyshell through the first module and the second module.

Abstract: A railcar includes a heat-resistant floor, and the heat-resistant floor includes a floor panel, a heat absorbing layer provided under the floor panel and configured to absorb heat, and a supporting plate configured to support the heat absorbing layer from below. The supporting plate includes contacting portions each configured to contact the heat absorbing layer and separated portions each continuously formed from the contacting portion in a railcar width direction, separated downward from the heat absorbing layer, and extending in a railcar longitudinal direction.

Abstract: A railcar bodyshell includes: a plurality of modules into which at least one of a floor portion, side portion, and roof portion of the bodyshell is divided in a car longitudinal direction; and an elongated member extending in the car longitudinal direction, the plurality of modules being attached to the elongated member. The elongated member includes a groove portion for fixing the plurality of modules to the elongated member the groove portion extending in the car longitudinal direction.

Abstract: A floor structure of a railcar includes: a pair of side sills extending in a railcar longitudinal direction; cross beams extending in a railcar width direction and coupling the pair of side sills; a supporting member, which is arranged on upper surfaces of the cross beams, in which bottom surface portions and convex portions projecting upward from the bottom surface portions are alternately, continuously formed in the railcar width direction, and which extends in the railcar longitudinal direction; receiving members located at positions corresponding to the cross beams, arranged on an upper surface of the supporting member, and extending in the railcar width direction; and a floor panel arranged on upper surfaces of the receiving members. The receiving members include: a floor plate contact portion that contacts the floor panel; and leg portions, extending from the floor plate contact portion to the bottom surface portion of the supporting member.

Abstract: A weld-joining structure between an outer panel and an attachment is achieved, which is advantageous in terms of appearance, workability, and cost. To weld-join the outer panel and the attachments including, such as frame members and opening frames and opening frame members, which is a reinforcement or an interior or exterior member for use in the outer panel, the outer panel and the attachment placed on the outer panel are weld-joined by laser welding at overlapping portions of the outer panel and the attachment. The laser welding is performed along a polishing mark formed in one direction on an externally exposed-side surface of the outer panel and the attachment.

Abstract: A railcar includes a heat-resistant floor, and the heat-resistant floor includes a floor panel, a heat absorbing layer provided under the floor panel and configured to absorb heat, and a supporting plate configured to support the heat absorbing layer from below. The supporting plate includes contacting portions each configured to contact the heat absorbing layer and separated portions each continuously formed from the contacting portion in a railcar width direction, separated downward from the heat absorbing layer, and extending in a railcar longitudinal direction.

Abstract: To join vertically and horizontally arranged frame members to the interior face of an outer panel, the horizontal frame members are disposed on the outer panel so as to take precedence over the vertical frame members and are weld-joined to the outer panel. The vertical frame members are placed on the horizontal frame members from the interior side and are weld-joined to the horizontal frame members. The vertical frame member includes a standard-width frame member and a wide-width frame member having a width greater than the width of the standard-width frame member. The vertical frame members are joined to and in contact with the outer panel at a reduced number of points, so that the appearance of the outer panel is maintained in a good condition. With this configuration, a low cost vertical and horizontal frame structure is achieved, which has sufficiently high joint strength that provides the required strength of the outer panel.

Abstract: A body frame structure having practically sufficient strength is provided. The body frame structure has a simple structure that can be obtained by simple joining operation. Vertically and horizontally arranged first and second frame members are weld-joined to an outer panel with an end portion of the second frame member facing a side surface of the first frame member. The first frame member is placed in a straddling manner on the outer panel and the end portion of the second frame member weld-joined to the outer panel and is weld-joined to both the second frame member and the outer panel. In this manner, even when the vertically and horizontally arranged first and second frame members are laser-welded to the outer panel, the joint strength can be improved without using a joint plate.

Abstract: To provide an antireflection film which is easily and inexpensively producible and which has an antireflection property, a scratch resistance and a stain resistance in a sufficient level, and a polarizing plate and a liquid crystal display device utilizing the antireflection film of such excellent ability, the antireflection film includes a transparent support and a low-refractive index layer having a lower refractive index than the transparent support, wherein the low-refractive index layer is an outermost layer, and the low-refractive index layer contains a hollow silica particle and a compound that reduces a surface free energy of the outermost layer.

Abstract: A body frame structure having practically sufficient strength is provided. The body frame structure has a simple structure that can be obtained by simple joining operation. Vertically and horizontally arranged first and second frame members are weld-joined to an outer panel with an end portion of the second frame member facing a side surface of the first frame member. The first frame member is placed in a straddling manner on the outer panel and the end portion of the second frame member weld-joined to the outer panel and is weld-joined to both the second frame member and the outer panel. In this manner, even when the vertically and horizontally arranged first and second frame members are laser-welded to the outer panel, the joint strength can be improved without using a joint plate.

Abstract: To join vertically and horizontally arranged frame members to the interior face of an outer panel, the horizontal frame members are disposed on the outer panel so as to take precedence over the vertical frame members and are weld-joined to the outer panel. The vertical frame members are placed on the horizontal frame members from the interior side and are weld-joined to the horizontal frame members. The vertical frame member includes a standard-width frame member and a wide-width frame member having a width greater than the width of the standard-width frame member. The vertical frame members are joined to and in contact with the outer panel at a reduced number points, so that the appearance of the outer panel is maintained in a good condition. With this configuration, a low cost vertical and horizontal frame structure is achieved, which has sufficiently high joint strength that provides the required strength of the outer panel.

Abstract: A weld-joining structure between an outer panel and an attachment is achieved, which is advantageous in terms of appearance, workability, and cost. To weld-join the outer panel and the attachments including, such as frame members and opening frames and opening frame members, which is a reinforcement or an interior or exterior member for use in the outer panel, the outer panel and the attachment placed on the outer panel are weld-joined by laser welding at overlapping portions of the outer panel and the attachment. The laser welding is performed along a polishing mark formed in one direction on an externally exposed-side surface of the outer panel and the attachment.

Abstract: A selective adsorbent by means of which halogenated aromatic compounds contained in organic media in small amounts can be selectively adsorbed and either removed or concentrated from the organic media to facilitate decomposition of the halogenated aromatic compounds.

Abstract: An antireflection film is provided with a transparent support, which has a light-diffusing layer and a low refractive index layer on the transparent support, wherein the light-diffusing layer has an inner haze value of 30 to 60% and a surface haze value of 1% or less, and the antireflection film has an average reflectance of 2.5% or less at a wavelength of 450 to 650 nm.

Abstract: A film-forming composition comprising (a) a block copolymer that comprises: at least a polymer block [A] containing a specific fluorine-containing alicyclic structure; at least a polymer block [B] containing a specific siloxane structure; and a repeating unit (H) having at least one reactive group capable of being involved in crosslinking reaction, the repeating unit (H) being in at least one of the polymer block [A] and the polymer block [B], and (b) at least one of a curing agent and a curing accelerator.