Abstract: A disc brake rotor has a support hub and coaxial braking band. The support hub has a plurality of radial seats and the braking band has a plurality of connecting elements which transfer torque between the band and the hub. The connecting elements are integral and made as one piece with the braking band and extend from the braking band in order to engage the corresponding radial seats. The connecting elements are surrounded by walls which are integral and made as one piece with the support hub such as to be fastened in the axial direction and in the tangential direction, but capable of sliding in the radial direction.

Abstract: A dust cover is provided in a cylindrical shape in an axial direction of a suspension apparatus configured to dampen a shock, and is extendable and compressible in the axial direction, or can be bent. A dust cover has a plurality of peak sections provided in the axial direction and configured to protrude outward in a radial direction, a plurality of valley sections provided in the axial direction and configured to protrude inward in the radial direction, and a plurality of connection sections provided in the axial direction and configured to connect the peak sections and the valley sections. At least one of axial concave sections and axial convex sections, which are formed in the axial direction, are provided in at least any of the peak section, the valley section, and the connection section.

Abstract: An integrated and self-contained suspension assembly having a gas spring integrated with a shock absorber (damper) is described. The rigid gas cylinder of the air spring is divided into a first gas chamber and a second gas chamber. A flow port connects the first and second gas chambers, and can be manually opened or closed by valve and a simple one-quarter turn rotation of an external knob to instantly switch the gas spring between two different spring rates. The different spring rates are functions of the separate or combined volumes of the two. gas chambers. The integrated suspension assembly is compactly packaged and self-contained, i.e., does not require any externalities, such as gas sources or electricity, to operate.

Abstract: A brake system including a main body having a first main chamber and a second main chamber divided by a main piston, a motor configured to move the main piston forward and move the main piston rearward, a first traction control valve installed in a first flow path, a second traction control valve installed in a second flow path, and a controller configured to control the motor, the first traction control valve, and the second traction control valve. When an anti-lock brake system (ABS) starting pressure is lower than an ABS critical value, the controller performs a low-pressure forward movement connection control that closes the first traction control valve and the second traction control valve, and moves the main piston forward to increase a first hydraulic pressure in the second main chamber.

Abstract: Apparatus and methods to reduce unwanted motion in a payload of a precision instrument are described. The payload may be supported by an intermediate mass. A feedback signal based upon sensed motion of the intermediate mass may be applied to an intermediate-mass actuator arranged to drive the intermediate mass. Additionally, a feedforward signal may be applied to a payload actuator arranged to drive the payload and used to suppress unwanted motion of the payload. The feedforward signal may be derived from a source within the apparatus or external to the apparatus that would otherwise cause unwanted motion of the payload.

Abstract: An actuator arrangement for a brake, particularly an electric parking brake or an electro-mechanic operating brake with a brake pad-adjustment unit that can be driven by an actuator arrangement. The actuator arrangement comprises: an electric motor, a transmission unit located in a housing, which is coupled to the electric motor and is effectively connected at the output side with the brake pad, adjustment unit, a mechanism for fastening the actuator arrangement at the caliper or at the brake pad, adjustment unit, a plug accept for a connection plug of an electric connection unit, which is electrically connected to the electric motor, the electric motor is encompassed at least partially by an encasement, at which the plug accept is formed in one piece, and/or the fastening mechanism are embodied as a separate exchange part, with fastening openings, and fixed at the actuator arrangement in a torque-proof fashion.

Abstract: A wheel chock includes a convex load surface configured to be engaged by a vehicle tire. The resultant force exerted by the vehicle tire on the wheel chock can be expressed as a vector normal to the convex surface, at a contact angle ?. As dynamic loading forces push the vehicle into the wheel chock, the tire rides up the convex surface of the chock, thereby increasing the contact angle ?. For contact angles greater than 45°, the vertical component of the resultant force will increase, and the horizontal component will decrease. The net effect is that, under dynamic loading, the chock will tend to anchor itself downwards rather than slide backwards or tip over. Also disclosed is a chock extractor secured to the wheel chock. Rotating the extractor handle in turn rotates an extractor foot, which pivots and lifts the wheel chock off the ground to disengage the chock.

Abstract: A hydraulic brake system for a land vehicle including a hydraulic connection between a master cylinder and wheel brakes that is established or blocked by valve arrangements in dependence upon trigger signals from an electronic control with the electronic control unit devised and programmed in such a way that, in order to set a brake pressure characteristic required for a specific vehicle behavior, the electronic control unit supplies trigger signals through which the setting of a respective brake pressure characteristic in two brake circuits in predefined pressure stages (delta-p) is staggered in terms of time by a substantially predefined time stage (delta-t).

Abstract: A gas spring end member is dimensioned for securement along an associated suspension member having an associated planar surface and at least an associated first side surface. The gas spring end member can include a base wall disposed transverse to a longitudinal axis and a bracket wall that extends longitudinally-outwardly from the base wall. The bracket wall can be adapted for operative connection to the associated suspension member such that the gas spring end member can be supported thereon with the base wall disposed in longitudinally spaced-apart relation to the associated planar surface of the associated suspension member. A gas spring assembly including such an end member can be included. A suspension system and a method of installation including such a gas spring assembly can also be included.

Abstract: An actuator unit includes a rod side chamber and a piston side chamber defined by a piston; a tank; a first opening/closing valve communicating the rod side chamber with the piston side chamber; a second opening/closing valve communicating the piston side chamber with the tank; an suction passage allowing a working fluid to flow from the tank toward the piston side chamber; a rectifying passage allowing the working fluid to flow from the piston side chamber toward the rod side chamber; a pump supplying the working fluid to the rod side chamber; a first discharge passage and a second discharge passage respectively communicating the rod side chamber to the tank; a first passive valve provided on the first discharge passage; a second passive valve provided on the second discharge passage; and a third passive valve configured to communicate and block the first discharge passage.

Abstract: A brake disk includes: a disk portion, having a first side face and a second side face facing opposite to the first side face, the first side face being for being assembled with a wheel and facing the wheel, the disk portion including an inner annular member and an outer annular member, the inner annular member being circumferentially formed with a first assembling mechanism, the outer annular member having a second assembling mechanism, the first assembling mechanism and the second assembling mechanism being correspondingly connected with each other; at least two connecting assemblies, being connected with the first assembling mechanism and the second assembling mechanism respectively, each connecting assembly including a helical spring, the helical spring being on the first side face and abutting against between the connecting assembly and the first side face.

Abstract: A shock absorbing apparatus includes a flexible membrane defining an accumulator cavity, and a compression assembly defining a compression cavity. The compression assembly is disposed within the flexible membrane such that viscous fluid contained within the cavities may be exchanged therebetween by a damping orifice, fluid conduit and or valve mechanism. The accumulator cavity deforms in response to the application of a transmitted impact load, and is capable of storing and releasing potential energy in response to the application and cessation of the transmitted impact load.

Abstract: A coil spring has an effective section that functions as a spring when a load in a coil axis direction has been applied, end turn sections that are formed on both ends of the effective section, and rising sections that are formed between the effective section and the end turn sections, wherein the rising sections are formed in such a way that, when ?1 represents the pitch angle of the rising sections and ?2 represents the pitch angle of the effective section, pitch angle ?1>pitch angle ?2 holds true in at least one of the rising sections.

Abstract: A hydraulic shock absorber includes: a cylinder that houses a liquid; a piston housing provided in the cylinder so as to be movable in an axial direction and partitions a space in the cylinder into a first oil chamber and a second oil chamber; a valve seat forming a channel for a liquid flowing across the first oil chamber and the second oil chamber in conjunction with movement of the piston housing; a damping valve that opens and closes a channel port of the channel in the valve seat to control a flow of the oil through the channel: a pressure chamber that houses the oil and that enables a pressure of the oil that has been housed to be changed; and a pressing portion that uses a pressure in the pressure chamber to press the damping valve in a direction in which the damping valve closes the channel port.

Abstract: Valves for maintaining brake cylinder pressure in freight car brake equipment are provided. A valve includes a first diaphragm defining a first side and a second side, and a second diaphragm defining a first side and a second side. The valve further includes a first port for receiving pressure from one of an emergency reservoir or a control volume, the first port in fluid communication with the first side of the first diaphragm; a second port for receiving pressure from a brake pipe, the second port in fluid communication with the second side of the first diaphragm; and a third port for receiving pressure from a brake cylinder, the third port in fluid communication with the second side of the second diaphragm.

Abstract: An adjusting unit for an automatic slack adjuster of a vehicle drum brake includes a housing (19), a worm shaft (2) mounted in the housing (19) so as to be movable between two end positions along an axial travel (A), a control pinion (9) arranged on the worm shaft, a worm (7) arranged on the worm shaft, and a freewheel (13) for power transmission between the control pinion (9) and the worm (7) in a first direction of rotation and for slip between the control pinion (9) and the worm (7) in an opposite, second direction of rotation. The worm shaft (2) has a first stop surface (3) and a second stop surface (5), which can each be brought into contact with a corresponding first stop (25) and second stop (21) at the end positions of the housing (19). An automatic slack adjuster includes such an adjusting unit.

Abstract: One embodiment relates to a vehicle control unit. The vehicle control unit includes a metallic base body and an electronic control unit which is attached to the base body. The electronic control unit includes a housing which is attached to an attaching surface of the base body and a control circuit board which is housed in the housing. A heat radiation portion is provided on the attaching surface so as to be inserted into the housing. The heat radiation portion is brought into abutment with the control circuit board via a heat conducting member. And, a heat conducting member holding portion is formed in the housing so as to hold the heat conducting member with respect to the heat radiation portion.

Abstract: An emergency controller includes an emergency stop switch to be activated upon detection of an emergency, a control section to be enabled upon activation of the emergency stop switch, and an emergency stop mechanism configured to execute and release braking by a brake mechanism under control of the control section. The control section is configured to perform execution control for causing the emergency stop mechanism to execute braking by the brake mechanism and for stopping operation of the engine upon the condition that the emergency stop switch is activated while the engine is in operation. The control section is configured to perform restoration control for causing the emergency stop mechanism to release the braking by the brake mechanism upon the condition that the emergency stop switch is deactivated and the engine is started.

Abstract: A brake pressure modulator (1) of an electronic braking system of a utility vehicle includes pressure control circuits (13, 14) respectively associated with a braking circuit of a vehicle axle, each pressure control circuit (13, 14) comprises a compressed air supply system (4, 5), at least one redundancy control pressure path (21), at least one ventilation path (19, 19a) and a common electronic control unit (2). Said pressure control circuits (13, 14) can be controlled independently from each other by the electronic control unit (2). Each pressure control circuit (13, 14) has an independent ventilation path (19, 19a) and at least one of the pressure control circuits (13, 14) has an independent redundancy control pressure path (21) and at least one other of the pressure control circuits (13, 14) comprises a device (16a) for forced venting in the event of a failure by means of the associated ventilation path (19a).

Abstract: In a joint structure for joining an insertion shaft that is driven to rotate to a reception side shaft having an insertion groove into which the insertion shaft is inserted so that a rotation of the insertion shaft is transmitted to the reception side shaft, a plurality of pairs of opposing side face portions are formed on an outer periphery of the insertion shaft, the insertion groove includes an axial hole that is formed to open onto an end surface of the reception side shaft and coincides with a pair of first side face portions of the side face portions, and a radial hole that is formed to penetrate the reception side shaft in a radial direction and coincides with a pair of second side face portions of the side face portions, and the axial hole and the radial hole are formed such that respective parts thereof intersect.