Abstract: The present disclosure increases the braking force of a parking spring brake mechanism without enlarging a device and without substantial increase in cost. The subject of the present disclosure is a brake cylinder device provided with a parking spring brake mechanism wherein a first piston moves in a prescribed braking direction. The brake cylinder device is provided with a brake force transmitting section having an inclined surface 38 that is inclined so as to press a brake output section in an advancement direction by moving along with the first piston in the braking direction. The inclined surface includes a first inclined surface provided in a distal end portion, and a second inclined surface provided in a proximal end portion and inclined more than the first inclined surface with respect to the advancement direction.

Abstract: There is provided a foreign material removing device of a track turnout portion which can tightly attach and fix nozzles to a rail belly portion stably without machining a rail itself. A foreign material removing device of a track turnout portion which has point rails which can move to contact and move away from stock rails of the track turnout portion, and which removes a foreign material dropped between the stock rail and the point rail, includes a piping unit which includes a plurality of nozzle portions which spray compressed air to remove the foreign material, and the piping unit includes a close-contact arrangement structure in which the piping unit is arranged in close contact with a lateral surface of the stock rail opposed to the point rail.

Abstract: An aircraft electric actuator drive apparatus has an electric actuator and a secondary power supply device. The electric actuator is driven using electric power from a main power unit provided in an aircraft. The secondary power supply device can temporarily supply electric power to the electric actuator while electric power from the main power unit is applied to the electric actuator.

Abstract: A gear transmission is provided with a gear structure and a plurality of motors. The gear structure is provided with a plurality of crank shafts, an eccentric rotation gear, and a rotation gear. Each motor is attached to one of the crank shafts. At least one of the plurality of motors is a first motor, and at least another of the plurality of motors is a second motor. The second motor has a length in an axial direction shorter than that of the first motor.

Abstract: Servo-valve that controls fluid discharged from a nozzle discharge port by displacing the nozzle, and that drives an actuator. The servo-valve includes a receiver provided with a first inflow port into which the fluid discharged from the discharge port flows. At least either the discharge port or the inflow port is a non-circular opening formed such that the amount of change in the area of overlap of the discharge and inflow ports occurring when the nozzle is displaced from the initial position is larger than in cases where the discharge port and the inflow port are of circular form of the same area. The increased amount whereby the area of overlap between the discharge and inflow ports changes when the nozzle is displaced from the initial position lets the fluid flow into the inflow port more quickly, improving the response speed of the actuator.

Abstract: Servo-valve that controls fluid discharged from a nozzle discharge port by displacing the nozzle, and that drives an actuator. The servo-valve includes a receiver having an inflow surface provided with a first inflow port, and a second inflow port into which fluid discharged from the discharge port flows. The nozzle includes a force generation portion having an end surface provided with the discharge port, and an outer circumferential surface formed on the periphery of the end surface. Displacing the nozzle from neutral position toward the first inflow port blows the fluid inside the second inflow port out toward the nozzle. The force generation portion collides with the fluid blown out from the second inflow port, causing assisting force in a direction matching the direction of nozzle displacement toward the first inflow port. The nozzle easily moves by the assisting force generated in the force generation portion, improving response speed.

Abstract: Servo-valve that drives an actuator by using a fluid. The servo-valve includes a nozzle having a discharge edge forming an outline of a discharge port from which the fluid is discharged and a tapered inner wall growing narrower toward the discharge edge, and a receiver that is provided with a flow path into which the fluid discharged from the discharge port flows. The nozzle is displaced in a direction different from the fluid discharge direction. The flow path extension direction is inclined with respect to a direction orthogonal to an inflow surface facing the nozzle by an angle ?. A taper angle determined by the tapered inner wall is larger than twice the angle ?. With such a configuration, the component of flow force exerted from the fluid on the tapered inner wall decreases. Since the nozzle can be quickly displaced, response speed of the actuator is improved.

Abstract: A brake cylinder device having a parking spring brake mechanism, provided with a clutch mechanism configured so as to transmit or block urging force of a piston to or from a brake force transmitting unit; a latch member for restricting displacement of the brake force transmitting unit relative to the piston by engaging with the clutch mechanism, and allowing displacement of the brake force transmitting unit relative to the piston by disengaging from the clutch mechanism; a latch lock member for engaging at an inclined part with a protruding part of the latch member; and a rotation-preventing part for preventing the latch lock member from rotating.

Abstract: The present invention provides a detection device for detecting a load and moment and capable of increasing the output by a strain gage. The detection device is provided with a characteristic sensor block. The sensor block includes a base having an axis extending in the direction of a load to be detected, a front side wall raised from the base at a position offset from the axis of the base, a rear side wall raised from the base at a position offset from the axis of the base in the direction opposite the front side wall, and an upper wall for connecting the upper end of the front side wall and the upper end of the rear side wall. The sensor block supports each strain gauge on the upper surface of the upper wall. The upper wall includes a center portion located at the center between the front side wall and the rear side wall, a first portion located between the center portion and the front side wall, and a second portion located between the center portion and the rear side wall.

Abstract: An aircraft electric power system provided in an aircraft includes a predetermined DC power supply bus for supplying electric power to a load. The DC power supply bus is configured to always be connected to two or more types of power supply devices having different forms.

Abstract: Provided is a small plug door device having a slide base is installed slidably in a vehicle width direction relative to a fixed base. A door drive mechanism for moving one door in a vehicle front-rear direction via a connecting portion has a drive portion including an electric motor, a drive wheel member, a follower wheel member, and an endless member, and is installed on the slide base. A guide portion guides a shaft portion provided on the connecting portion so as to move the shaft portion in a vehicle width direction. In a double-speed rail in which a pinion is disposed between two racks, one rack is connected to the slide base, the other rack is connected to the door side, and the pinion is connected to the connecting portion.

Abstract: A cylinder is installed within a case, and an output shaft and an arm that is integrated thereto and extends in a radial direction are installed within the cylinder. A piston extending in an arc slides and is displaced in a circumferential direction of the cylinder within the cylinder. One end portion of the piston is rotatably connected to the arm. The cylinder is internally provided with a first pressure chamber in which the arm is housed and a second pressure chamber in which the other end portion of the arm is slidably installed. A pressure medium is fed into one of the first and second pressure chambers and discharged from the other, and the output shaft pivots in a rotational direction.

Abstract: It is aimed to provide a railway vehicle plug door device capable of easily ensuring airtightness between a side structure body and a door leaf even if the railway vehicle plug door device is installed in a side structure body having a structure assembled by joining structural members by welding and including a bent part. A frame body is mounted on a part constituting an entrance in a side structure body by a mechanical fastening structure. A seal member is mounted on at least one of a door leaf and the frame body and held in close contact with both the door leaf and the frame body when the door leaf closes the entrance.

Abstract: A rotation driving mechanism for windmill (1) includes an annular track part (2), a rotation driving part (11), and a plurality of swinging parts (15). The annular track part (2) is disposed on one of a base-side structure and a rotation-side structure, and has a track wall part (3) and first teeth (7). The rotation driving part (11) is fixed on the other of the base-side structure and the rotation-side structure. Each swinging part (15) has a swinging part body (16a) and second teeth (16b). When a rotating shaft (13) of the rotation driving part (11) is rotated so that the swinging parts (15) are swung with maintaining a predetermined phase difference thereamong, the swinging parts (15) are relatively moved with respect to the annular track part (2).

Abstract: A motor (100) is used for driving a member in a container regulated to a pressure different from the atmospheric pressure. The motor (100) includes a rotor (10), a stator (18), and a case (34). The rotor (10) is located in an environment having a pressure different from the atmospheric pressure. The stator (18) is located opposedly to the rotor (10). The case (34) contains the rotor (10) and the stator (18). In the motor (100), a space in the case (34) opposed to the rotor (10) is filled with a resin.

Abstract: An electromechanical actuator includes a first electric motor, a first motion conversion mechanism, a second motion conversion mechanism, and a rotation restriction mechanism for the second motion conversion mechanism. The first motion conversion mechanism includes a first member that is rotated by an output of the first electric motor and a second member that is fastened to the first member. The second motion conversion mechanism includes a third member that is movable integrally with the first member and a fourth member that is fastened to the third member. The rotation restriction mechanism is configured to be capable of selectively restricting and allowing rotation of the fourth member in accordance with movement of the third member.

Abstract: Provided are a brake system, a brake device, and a method of controlling brakes for railroad cars in which control can be multiplexed with a simple configuration. In a brake system 1 for railroad cars includes brake control devices 11, 12, 13 provided in railroad cars 101, 102 103 respectively that form a unit 104. Each brake control device 10 (11, 12, 13) is capable of outputting information of the corresponding car (101, 102, 103) to the other brake control devices 10 through a transmission device 20. The brake control device 10 can calculate a total necessary braking force value BRA required for braking all of the cars 101, 102 103 using the information output from the other brake control devices 10 to the transmission device 20.

Abstract: An opening and closing apparatus with a lock that is provided is capable of safely and promptly closing a sliding door, and also easily performing unlocking with a simple configuration. In an opening and closing apparatus with a lock for opening and closing sliding doors that are provided with elastic members at their door leading ends, output of an electric motor is transmitted to a rack-and-pinion mechanism or a lock mechanism. A control unit controls the electric motor such that a closing operation is performed, the closing operation operates the rack-and-pinion mechanism so as to move the sliding doors to a fully closed position and then displacing a link mechanism in a lock mechanism from an unlocking position to a locking position. Furthermore, the control unit controls the electric motor so as to reduce the output of the electric motor at a predetermined intermediate time point during the closing operation.

Abstract: The present application discloses a dehumidifying device including a base configured to define an inlet channel for first air flow, and an outlet channel for second air flow less humid than the first; and a first dehumidifier including a first inlet and outlet in communication with the inlet and outlet channel, and configured to dehumidify the first air between the first inlet and the first outlet to generate the second air. The base includes a first base portion configured to define first inlet and outlet regions for the first and second air flows; and a second base portion configured to define second inlet and outlet regions in communication with the first inlet and outlet regions. The first and second inlet regions form at least a part of the inlet channel. The first and second outlet regions form at least a part of the outlet channel.