A device for actuating a brake shoe of a brake, in particular a disk brake, includes a pivotably mountable lever element, and a transmission element configured to be mounted in a longitudinally movable fashion is such that a pivot movement of the lever element is translated into a longitudinal movement of the transmission element wherein a hydraulic chamber configured to be filled with a hydraulic fluid is arranged between the brake shoe and the transmission element for the transmission of force between the brake shoe and the transmission element.

A self-adjusting automatic slack adjuster for reducing slack in the brake of a vehicle includes an adjuster link having a resilient portion. When a brake application force being applied to the slack adjuster exceeds a level that could result in brake application linkage damage as a result of the slack adjuster's slack adjustment mechanism having reached a travel limit, the resilient portion of the adjuster link permits the axial length of the adjuster link to change to accommodate the high brake application force in order to minimize or preclude damage to the brake application linkage.

An electromechanical brake actuator (102, 202, 302, 402) for a brake, in particular a commercial vehicle disc brake, has an electric motor (106, 206) for generating a drive torque, a cam disc (108, 208, 308, 408) operatively connected to the electric motor (106, 206) and mounted in a rotationally movable manner, and a brake plunger (114, 214, 314) which can be moved along a plunger axis for the actuation of a brake lever (358) of the brake (368). The cam disc (108, 208, 308, 408) and the brake plunger (114, 214, 314) have contact faces which are in contact with one another and slide or roll on one another for the direct transmission of the drive torque between the cam disc (108, 208, 308, 408) and the brake plunger (114, 214, 314).

[Problem] A power transmission unit that improves quietness of a gear mechanism and prevents a size of the unit from increasing when a brake rotor is installed around an input shaft of the gear mechanism.

[Solution] The power transmission unit includes an electric driving motor with a motor shaft, a gear mechanism, and an output shaft, which are accommodated in a transmission housing, wherein the power of the motor shaft is transmitted to the output shaft via the gear mechanism. The gear mechanism has a gear shaft rotatably supported on the transmission housing and a first helical gear provided on the gear shaft. The power transmission unit further includes a connecting member provided with a tubular portion fitted to the motor shaft and the gear shaft so as to allow the motor shaft and the gear shaft to synchronously rotate. The connecting member is integrally provided with a brake rotor on the outer periphery thereof.

A brake device including a guide receiving area for connecting to a bearing component, forming a brake device bearing moveable in the direction of a first straight line. The brake device has a brake caliper with a first frictional surface and a first actuation surface, a pressing part being linearly guided along the first straight line relative to the brake caliper. The pressing part has a second frictional surface and a second actuation surface, and the brake device has a spreading element which interacts with the first actuation surface and the second actuation surface. The rotation of the spreading element changes the minimum distance between the frictional surfaces. A movement damping part coupled to the spreading element is designed to damp a translational movement of the spreading element relative to the bearing component in the guide receiving area parallel to the first straight line.

The present disclosure discloses one example of a one-way coupling that eliminates the need for a component corresponding to a guide piece. The one-way coupling of the present discloser includes an input shaft and an output shaft, and is configured to transmit a drive force from the input shaft to the output shaft, and inhibit the drive force inputted to the output shaft from being transmitted to the input shaft. The one-way coupling includes: a transmitter; an immovable ring; a pressure-contact cam; a first wedge member displaceable between a locked position and an unlocked position, and receiving a pressing force from the pressure-contact cam when the drive force is inputted to the input shaft, and thereby the first wedge member is displaced to the locked position; and a first holder holding an arrangement of the first wedge member when the drive force is inputted to the output shaft.

In a method for controlling a clutch actuator for an automated manual transmission, when a driver's operation signal is input for operation of the clutch actuator, the hydraulic pressure of a hydraulic chamber of the clutch actuator forms pressure equilibrium with the atmospheric pressure through a pressure equilibrium control by standing by at a control-standby state before an actual stroke position of the clutch actuator enters a hydraulic pressure generation range from a hydraulic pressure release range. When the actual stroke position of the clutch actuator enters the hydraulic pressure generation range from the hydraulic pressure release range, the clutch actuator is moved to the predetermined stroke position by a predetermined operation speed, and then controlled to follow the driver's operation signal.

A dual clevis pin retainer spring assembly and kit used to attach a brake rod clevis to the brake actuator lever and the push rod for an associated automatic slack adjuster. The pin used to attach the brake actuator lever to the clevis is configured to include an engagement slot to retain an associated retainer spring pin with the pin.

The present disclosure relates to vehicle drum brakes. In one aspect, there is provided a brake shoe comprising a guide at or near its free end, which prevents brake shoe misalignment. According to a further aspect, there is provided a guide for attachment to a brake shoe at or near its free end, which prevents brake shoe misalignment. According to a further aspect, there is provided a drum brake assembly comprising a brake shoe comprising the guide.

A method for determining design parameters of an electromechanical brake is provided. The brake comprises an electric motor connected to a brake lining by a transmission. The brake lining can be pressed against a friction lining movable relative to the brake lining. The electric motor is connected to the brake lining by a transmission that has a transmission ratio which is not constant over an actuation stroke. A reliable and economical brake is achieved in that an electric motor, a brake lining and a friction lining are selected, whereupon the transmission ratio is selected on the basis of the counter-torque acting over the actuation stroke, which counter-torque acts on the transmission. The transmission ratio is selected in such a way that the electric motor is operated at an optimal operating point, in particular at an operating point of maximum power, substantially over the entire actuation stroke.