Abstract: A heat exchanger for an aircraft engine that allows improvement in heat exchange ratio is provided. The heat exchanger (1) includes a plurality of heat dissipating fins (20, 30). The plurality of heat dissipating fins (20, 30) are arranged on at least one of a surface (2) and a surface (3). Each of the heat dissipating fins (20, 30) has a plate-like shape and has an inlet-side upper edge disposed on the side where a swirl flow (AF1) flows in and an outlet-side upper edge disposed on the side opposite the inlet-side upper edge and on the side where the swirl flow (AF1) flows out, and the inlet-side upper edge intersects the axis of rotation of a fan and extends along the direction in which the swirl flow (AF1) flows at the inlet-side upper edge.

Abstract: A heat exchanger for an aircraft engine includes: a body including a plate-like first member and a plate-like second member that are stacked in a thickness direction of the first and second members and joined together, and a channel which is defined in the body and in which the cooling target fluid flows; and a corrugated fin plate disposed in the channel in the body. The body is bent along a curved surface to which the heat exchanger is attached. A plurality of heat dissipation fins stand on an outer surface of at least one of the first member or the second member.

Abstract: A tire testing apparatus includes: a lower rim that is formed with a lower through hole, and a rim-side inclined surface that increases in diameter in a downward direction of an inner peripheral surface of a lower end portion of the lower through hole; an upper rim that is held to face the lower rim; an insertion part capable of being inserted through the lower through hole; and an apparatus-side inclined surface that is provided at a lower end portion of the insertion part, increases in diameter from an outer peripheral surface of the insertion part in the downward direction, and is capable of coming into contact with the rim-side inclined surface.

Abstract: This printing device includes a first supply roller and a second supply roller that supply the pair of ink ribbons; a first winding roller and a second winding roller that are pulled out from the first supply roller and the second supply roller and wind the pair of ink ribbons passing through a printing position; and a roller driving unit that rotates the first winding roller and the second winding roller. The roller driving unit includes one rotational driving device in which a rotating shaft is rotatable in a normal direction and a reverse direction, a first transmission mechanism that transmits only the rotation of the rotating shaft in the normal direction to the first winding roller, and a second transmission mechanism that transmits only the rotation of the rotating shaft in the reverse direction to the second winding roller.

Abstract: Provided is a working vehicle comprising: a fuel tank; a tank support member configured to receive and support the fuel tank from below; and an inverse U-shaped hood support member provided upright in a state of spanning left and right of the fuel tank, the hood support member including an elastic member that acts on an upper portion side of the fuel tank so as to hold the fuel tank at a predetermined position on the tank support member.

Abstract: A cable with a scintillation fiber having high radiation detecting accuracy is provided. The cable comprise a protective tube, a scintillation fiber accommodated in the protective tube, and a light emission preventing element accommodated in the protective tube.

Abstract: This printing device includes a first supply roller and a second supply roller that supply the pair of ink ribbons; a first winding roller and a second winding roller that are pulled out from the first supply roller and the second supply roller and wind the pair of ink ribbons passing through a printing position; and a roller driving unit that rotates the first winding roller and the second winding roller. The roller driving unit includes one rotational driving device in which a rotating shaft is rotatable in a normal direction and a reverse direction, a first transmission mechanism that transmits only the rotation of the rotating shaft in the normal direction to the first winding roller, and a second transmission mechanism that transmits only the rotation of the rotating shaft in the reverse direction to the second winding roller.

Abstract: A tire marking apparatus for performing marking in a tire includes a printing part capable of performing printing in a tire; a rotational position adjusting roller that abuts against a portion of the tire, and rotates the tire around an axis of the tire when the rotational position adjusting roller rotates; and a rotational driving unit that rotates the rotational position adjusting roller.

Abstract: Provided is a working vehicle comprising: a fuel tank; a tank support member configured to receive and support the fuel tank from below; and an inverse U-shaped hood support member provided upright in a state of spanning left and right of the fuel tank, the hood support member including an elastic member that acts on an upper portion side of the fuel tank so as to hold the fuel tank at a predetermined position on the tank support member.

Abstract: The object of the present invention is to provide a plastic image fiber having a small optical transmission loss. The plastic image fiber comprises N (where N is an integer equal to or greater than 2) number of cores which are disposed within a cladding. The each of the cores has an index of reflection that continuously changes at a peripheral part of the core. The index of reflection at the peripheral part on a center side of the core is greater than an index of reflection at the peripheral part on a cladding side.

Abstract: A tire holding apparatus is provided with a first support part for supporting a tire, a second support part for supporting the tire, and an air supply and removal part for supplying and removing air from the inside of the tire. The second support part has a protrusion that protrudes toward the first support part. The air supply and removal part has a first flow path for allowing air to flow, a second flow path for allowing air to flow from an opening formed at the leading end of the protrusion to the inside of the tire, and a collection part that is attached to the opening and collects foreign matter that has been mixed into the second flow path from the inside of the tire.

Abstract: A tire testing apparatus allows attachment and detachment of a rim assembly in which first and second rims are integrated and performs testing of a tire attached to the rim assembly. The tire testing apparatus includes a first attaching part; a second attaching part; a rotating part that rotates the first attaching part around a reference axis orthogonal to the first reference surface of the first rim attached to the first attaching part; a fixing part that fixes the first attaching part and the second attaching part to each other and is capable of releasing the fixation; an attaching portion moving part that adjusts the distance in a direction along the reference axis between the first attaching part and the second attaching part; and a rotation regulating part that regulates rotation of the second attaching part around the reference axis.

Abstract: An electrical resistance measuring device for a tire (T) that measures the electrical resistance from a bead portion (71) to a tread portion (70) and includes a measuring tip (5a) that is curvedly deformable along the shape of the tire (T).

Abstract: A heat exchanger for an aircraft engine includes: a body including a plate-like first member and a plate-like second member that are stacked in a thickness direction of the first and second members and joined together, and a channel which is defined in the body and in which the cooling target fluid flows; and a corrugated fin plate disposed in the channel in the body. The body is bent along a curved surface to which the heat exchanger is attached. A plurality of heat dissipation fins stand on an outer surface of at least one of the first member or the second member.

Abstract: A tire grinding device grinds a surface of a tire, and the tire grinding device includes: a grindstone holding portion which holds a grindstone which grinds the surface of the tire; a cover which is disposed with a gap with respect to the surface of the tire, and covers the grindstone held by the grindstone holding portion; and an air layer forming portion which forms an air layer which prevents ground chips of the ground tire from being discharged through the gap formed between an edge of the cover and the surface of the tire.

Abstract: A rim assembly includes a first rim on which a first reference surface is formed, a second rim on which a second reference surface is formed, a through-hole that extends to intersect the first reference surface of the first rim and into which an inserting part is inserted, pins erected on one of the first and second reference surfaces, protruding portions formed on the other of the first and second reference surfaces, first supporting members provided for the first reference surface, and second supporting members provided for the second reference surface. Groove portions with which the protruding portions are engaged are formed around the outer peripheral surfaces of the pins. The first and second supporting members come into contact with each other when the protruding portions are separated from the groove portions, and are separated from each other when the protruding portions are engaged to the groove portions.

Abstract: Provided is a rim exchange apparatus of a tire testing machine having a simple and space-saving configuration and capable of rotating a turntable having a plurality of rim placing parts with no interference and appropriately identifying a plurality of rim assemblies set on the turntable. A turntable is installed to be rotated about a rotary shaft with respect to the support part, a plurality of rim placing parts on which a rim assembly is placed are provided to the turntable about the rotary shaft, and reading parts are attached to the support part at a lower side of the turntable. Then, the reading parts read rim identification information of the rim assembly placed on the rim placing parts through the turntable at a predetermined reading position. Accordingly, the identification information of the rim assembly can be appropriately read with no interference with rotation of the turntable.

Abstract: A heat exchanger for an aircraft engine includes: a body including a plate-like first member and a plate-like second member that are stacked in a thickness direction of the first and second members and joined together, and a channel which is defined in the body and in which the cooling target fluid flows; and a corrugated fin plate disposed in the channel in the body. The body is bent along a curved surface to which the heat exchanger is attached. A plurality of heat dissipation fins stand on an outer surface of at least one of the first member or the second member.

Abstract: An electrical resistance measuring device for a tire (T) that measures the electrical resistance from a bead portion (71) to a tread portion (70) and includes a measuring tip (5a) that is curvedly deformable along the shape of the tire (T).

Abstract: Provided is a working vehicle comprising: a fuel tank; a tank support member configured to receive and support the fuel tank from below; and an inverse U-shaped hood support member provided upright in a state of spanning left and right of the fuel tank, the hood support member including an elastic member that acts on an upper portion side of the fuel tank so as to hold the fuel tank at a predetermined position on the tank support member.