This unit brake which is equipped with a cylinder apparatus in which a clutch mechanism that switches between transmitting or cutting off a biasing force of a spring brake part is disposed is capable of preventing a braking force due to the spring brake part from unintentionally decreasing due to a meshing section o...

Provide are a brake system for rail cars a brake control device for a rail car and a brake control method for rail cars such that redundant control is achieved with a simpler configuration. A brake system (1) for rail cars includes a plurality of brake control devices (11 12 13) individually provided in a plurality ...

The present invention 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 invention is a brake cylinder device (2) provided with a parking spring brake mechanism (40) wherein a first piston (43) moves in a pre...

The disclosed variable load valve (21) is provided with a first diaphragm member (41) a second diaphragm member (42) a piston (40) a force transmission member (43) and a diaphragm affixing member (45). The first diaphragm member (41) deflects due to the pressure inside a pilot chamber into which air is introduced at...

A variable load valve (21) comprises: a pressure regulating valve (50) capable of outputting a pressure corresponding to a full-load-condition load compensating pressure; a pilot pressure sensor (52b); a solenoid valve (52) capable of charging/discharging air pressure, and operable, in accordance with a detection...

This gear transmission device comprises a crank shaft an eccentric rotation gear and a self rotating gear. The eccentric rotation gear rotates eccentrically in association with the rotation of the crank shaft. The self rotating gear meshes with the eccentric rotation gear. The crank shaft includes a shaft part a ...

An air compressing device for a railway vehicle, configured so that whether or not the replenishment of oil is required can be easily and accurately determined. An oil temperature regulation valve (26) has a body section (39), a valve element (40), a valve element drive section (41), and a restricted position commu...

Provided is an air compressing device that can suppress degradation of oil,realize reliable operation even under humid environment, and further prevent efficiency when generating compressed air from being reduced. An oil recovery unit 17 is configured to have guided thereto compressed air that was compressed along ...

Provided is a platform door device which makes it possible to reduce the length of time for a replacement operation when a panel-shaped portion of a door is damaged. The platform door device comprises a door, and a driving mechanism for moving the door forwardly and backwardly to close and open a gate on a platfo...

Provided is a brake cylinder device which comprises a gap adjustment mechanism, and is such that unsusceptibility to the influence of ambient environmental factors, such as temperature and humidity, is achieved at low cost, and that the radial dimensions of a cylinder body are downsized. A threaded shaft (24) which ...

Disclosed is a brake pressure control valve 20 that is provided with: a block 31 in which at least first hole parts 31a, 31b and two second hole parts 31c, 31c are formed; a variable load valve that is disposed in the first hole parts 31a, 31b and capable of generating variable load pressure according to a vehicl...

A speed reducer and a yaw drive apparatus for a wind power generation apparatus, where the speed reducer has high efficiency and a short axial length, and suitable for the yaw drive apparatus. The speed reducer has three stages for speed reduction. The total reduction gear ratio of a first stage speed reducing por...

A speed reducer and a yaw drive apparatus for a wind power generation apparatus, where the speed reducer has high efficiency and a short axial length, and suitable for the yaw drive apparatus. The speed reducer has three stages for speed reduction. The total reduction gear ratio of a first stage speed reducing porti...

The brake cylinder device of the present invention is provided with a normal brake means, a spring brake means, a push rod, and a projected length adjusting means having a guide member, which is movable together with the push rod and attached to the push rod in such a manner that a predetermined resisting force is ...

In a clearance adjustment device for a brake cylinder including a push rod for operating a vehicle braking device, and a guide member which is attached to the push rod and movable together with the push rod, a frictional force (connection force) between the push rod and the guide member is stably obtained. An uneve...

[PROBLEMS] A unit brake in which rocking of a piston rod is suppressed and which can be assembled with reduced labor. [MEANS FOR SOLVING PROBLEMS] The unit brake has a pair of wall sections (61,62) arranged on the piston rod (43) so as to be spaced from each other in the direction of the axis of the piston rod (43),...

AThe disc padbrake pad 10 includes an elastic member 40 which is provided between a base 12base member 12 and a friction block 14 and which allowspresses the friction block 14 toward the brake disc so as to allow the friction block 14 to tilt and move in a direction to approaching the base 12base member 12 when the ...

A brake-shoe installation structure where a brake-shoe head (40) has an insertion opening (42c) formed as an elongate hole so that an L-shaped brake-shoe cotter (50) having a bend (52a) can be inserted through the insertion opening from the direction of the rotation axis of a wheel. A brake shoe (30) has an installa...

The brake cylinder of the present invention is a brake cylinder used in a brake device for vehicles, and includes a piston making a relative movement with respect to a cylinder main body, a shaft rod moving together with the piston, a push rod attached to the shaft rod, and a projected length adjusting means fo...

It is intended to configure a disc brake pad which can also prevent a friction material from partially coming off in an efficient way. The disc brake pad comprises reinforcing plates (14) and friction material pieces (16) fixed to the reinforcing plates (14). There are provided a plurality of protruding parts (25) s...

The unit brake 1 includes a pushing rod 12 which is arranged to move in and out to and from a brake main body 11, a shoe head 13 which is rotatably connected to a leading end portion of the pushing rod 12, a link component 14 which is connected to the shoe head 13 at a position above a junction between the shoe...

It provides a brake device avoiding a simultaneous operation of a normal and spring brake with a simple mechanism eliminated a double check valve.

A speed reducing mechanism according to the present invention includes: a speed reducing unit for decelerating input rotation; an accelerating unit for accelerating rotation output from the speed reducing unit; and a brake unit for applying a braking force for braking the accelerating unit.

The present invention is equipped with: an information acquisition means that acquires at least one item of physical information about an object that is manifested outside of the object said object having embedded therein a subject the state of which cannot be checked directly from the outside; and a state determina...

An attitude control device (160) suppresses a fluctuation of the tilt of the brake shoe head (151). The attitude control device (160) includes a coil spring (163) that suppresses the tilt by a frictional force, a spring box (161) that retains the coil spring (163), and a weight (161B) provided in the spring box (161...

A pressure control valve (50) includes an input chamber (73) to which a target pressure is input, an output chamber (63) having an output pressure controlled to be balanced with pressure of the input chamber by switching between pressure application and pressure release, a pressure boosting chamber (81) that boosts ...

A shaft retention mechanism of the present invention includes: a casing forming a housing space containing a lubricant; an input shaft penetrating a through-hole formed in the casing, the input shaft extending through the casing; a sealing ring encircling the input shaft in the through-hole, the sealing ring sealing...

The present invention is equipped with: an information acquisition means that acquires at least one item of physical information about an object that is manifested outside of the object, said object having embedded therein a subject the state of which cannot be checked directly from the outside; and a state determi...

Provided are a power generation device and a brake control device that provide power supply on a trailer. The power generation device (6) includes an air power generation unit (13) that generates power by compressed air from the air reservoir pipe (MR) that supplies compressed air from a locomotive to a brake device...