Abstract: The screw fastening structure includes a nut and a nut holding portion that holds the nut displaceably in at least one direction, which are provided on at least one of a first member and a second member screw-fastened to each other with a screw and the nut.

Abstract: A fluid handling system includes a fluid handling device including an opening for introducing a fluid or discharging the fluid; a tube including a flange, where one end of the tube is for connection to the opening, and the other end of the tube is for connection to an introduction device for supplying the fluid or to a discharge device for discharging the fluid; a support member including a first through hole into which the tube is inserted, and movably supporting the tube; and a first elastic member including a second through hole into which the tube is inserted, and holding a part of the tube while the first elastic member is in contact with the flange and the fluid handling device or the support member.

Abstract: A fluid handling system includes a fluid handling device including an opening for introducing a fluid or discharging the fluid; a tube including a flange, where one end of the tube is for connection to the opening, and the other end of the tube is for connection to an introduction device for supplying the fluid or to a discharge device for discharging the fluid; a support member including a first through hole into which the tube is inserted, and movably supporting the tube; and a first elastic member including a second through hole into which the tube is inserted, and holding a part of the tube while the first elastic member is in contact with the flange and the fluid handling device or the support member.

Abstract: A covering lid includes a first plate portion provided with plural insertion portions into which a screw portion of a fastener having the screw portion and a head portion having a diameter larger than the screw portion is inserted and having a first surface facing an inside of a device and a second surface facing an outside of the device, the first plate portion being fixed by the plural fasteners of which the screw portion is inserted into each of the plural insertion portions so as to cover an opening of a device housing extending upward, downward, and rightward, and leftward; and a second plate portion extending apart from the first plate portion to a second surface side of the first plate portion so as to face at least some insertion portions on the same upper, lower, left, or right side of the opening among the plural insertion portions, being removed from the device housing, and being provided with a hook portion hooked to the fastener attached to the device housing in a state where the first surface fa

Abstract: A fluid handling device includes a board that includes a board body, and a lid that faces the first surface of the board and is disposed so as to form a space between the board and the lid. The lid includes a lid body including a second surface, and a first through hole which allows for injection of a fluid into the space and includes a first opening that opens onto the second surface and a second opening that opens onto a surface other than the second surface. The lid further includes a spacer which is integrally molded with the lid body; alternatively, the board includes a spacer which is integrally molded with the board body.

Abstract: Provided is an information display assembly that is hardly affected by an external force such as traveling wind when mounted on a helmet and that ensures easy attachability and detachability to and from the helmet. In an information display assembly including a display unit displaying information, and a frame connected to the display unit to allow mounting of the display unit on the helmet, the frame has resiliency and is provided at opposite ends thereof with pressing parts, and the pressing parts are fixed on an inner side of the helmet by restoring force of resilient deformation. The display unit and the frame are commonly provided at a single location therebetween with a connecting par. The display unit is displaceably supported relative to the frame.

Abstract: A saddle riding vehicle includes: a meter apparatus; and a head-up display apparatus including a projection unit and a combiner to which an image from the projection unit is projected. The meter apparatus is arranged at a position overlapping with an optical path from the projection unit to the combiner as viewed in plan view.

Abstract: A saddle riding vehicle includes: a meter apparatus; and a head-up display apparatus including a projection unit and a combiner to which an image from the projection unit is projected. The meter apparatus is arranged at a position overlapping with an optical path from the projection unit to the combiner as viewed in plan view.

Abstract: Provided is an information display assembly that is hardly affected by an external force such as traveling wind when mounted on a helmet and that ensures easy attachability and detachability to and from the helmet. In an information display assembly including a display unit displaying information, and a frame connected to the display unit to allow mounting of the display unit on the helmet, the frame has resiliency and is provided at opposite ends thereof with pressing parts, and the pressing parts are fixed on an inner side of the helmet by restoring force of resilient deformation. The display unit and the frame are commonly provided at a single location therebetween with a connecting par. The display unit is displaceably supported relative to the frame.

Abstract: A fluid handling device includes: a first channel through which liquid flows by capillarity; a liquid reservoir which communicates with an upstream end of the first channel and stores liquid; a liquid introduction part which communicates with the liquid reservoir and includes a taper part whose diameter decreases from an opening part toward the liquid reservoir; a stop valve disposed on a downstream end of the first channel and including a step part where a cross-sectional area of the channel in a direction orthogonal to a direction in which liquid flows discontinuously increases; and a second channel which communicates with a downstream end of the first channel, the second channel being a channel through which fluid flows.

Abstract: A fluid handling device includes: a first channel through which liquid flows by capillarity; a liquid reservoir which communicates with an upstream end of the first channel and stores liquid; a liquid introduction part which communicates with the liquid reservoir and includes a taper part whose diameter decreases from an opening part toward the liquid reservoir; a stop valve disposed on a downstream end of the first channel and including a step part where a cross-sectional area of the channel in a direction orthogonal to a direction in which liquid flows discontinuously increases; and a second channel which communicates with a downstream end of the first channel, the second channel being a channel through which fluid flows.