For rapid and precise actuation of a friction brake, the thermal expansion of the friction brake is determined using a thermal model of the friction brake and therefrom the temperature-dependent shift in the contact point is determined for the braking operation and the temperature-dependent shift in the contact point is taken into account when determining the actuation measure of the friction brake to be adjusted.

A drum brake assembly that includes a brake drum, first and second brake shoes, a cam shaft, a first tappet, a second tappet, and a wear adjuster mechanism. The wear adjuster mechanism has a cross shaft and a sensor. The sensor is configured to detect rotation of the cross shaft about a longitudinal axis to monitor wear of the first and second brake shoes and a braking surface of the brake drum.

An overspeed brake system for use in an elevator powerhead is provided. A brake rotor is attachable to a cable drum to rotate with a cable drum. A brake member selectively engages the brake rotor upon transition of an actuation lever from a first position to a second position. A biasing member acts on the actuation lever to bias the actuation lever from the first position towards the second position. A latch arrangement has a first orientation maintaining the actuation lever in the first position and a second orientation releasing the actuation lever for transitioning from the first position to the second position. The latch arrangement transitions from the first orientation to the second orientation when a speed sensing arrangement senses that the rotational speed of the cable drum is at least a predetermined rotational speed.

Disk brake including a brake caliper and an application device arranged therein for applying force to the brake pads of the disk brake, wherein a component of the application device is a brake lever which can be actuated by a force element and preferably by a pressure cylinder and is composed of a lever arm against which the force element is supported and an application shaft. The application shaft is supported, on one side, against a pressure piece operating in the direction of the brake pads and, on the other side, with the interposition of a shell, against a channel arranged on the inside of the brake caliper, wherein the curvature of the shell is complementary to the curvature of the channel. In order to develop the disk brake and the shell assembly by constructive measures so as to prevent the shell assembly from moving out of the original position even in the case of long-term use and under frequent load caused by braking, an opening of a bore is located in the channel.

A disk brake is proposed for a vehicle, preferably a commercial vehicle, having a brake caliper which engages over a brake disk and brake linings on both sides of the brake disk, a brake application device (5) which can be actuated by way of a force element, preferably a pneumatic force element, an adjusting device (20) for compensating for the brake lining and brake disk wear, which adjusting device (20) is arranged on an adjusting axis (L) which extends in the brake application direction, and is provided with a drive element (27) which can be rotated about the adjusting axis (L), and a brake lever (10) which is a constituent part of the brake application device (5) and is composed of a brake application shaft (11) which on one hand is supported in relation to the brake caliper and on the other hand in relation to a pressure piece (8) which operates against one of the brake linings, and a lever arm (12) which can be pivoted with the brake application shaft (11) and the pivoting center line of which extends at a right angle with respect to the brake application shaft (11), and which lever arm (12) is provided with a support (16) for the force element in the region of its outer end (12A), the brake lever (10) having a clearance (40) in an extension of the lever arm (12) to the inside, through which clearance (40) the adjusting axis (L) extends, a mechanism which couples the brake lever (10) to the drive element (27), and which is composed of a first mechanism element (31) on the brake lever (10) and a second mechanism element (32) on the drive element (27), which second mechanism element (32) interacts with said first mechanism element (31).

In order to provide as much installation space as possible for the brake application shaft, the first mechanism element (31) is arranged at the inner end (12B) of the lever arm (12) in the plane (E) which is defined by the pivoting movement (S) of the lever arm (12).

A disc brake apparatus structured such that, on receiving a pressing force from an operating spring, a piston arranged within a cylinder formed in a caliper body presses a piston side pad. The disc brake apparatus includes a support part formed in a part of the caliper body, a reaction force receiver provided on and projected from the lateral side of the piston and opposed to the support part, and cam parts interposed between the support part and the reaction force receiver and, on receiving a rotation force, capable of spreading the distance between the support part and the reaction force receiver to thereby release the pressing force.

A braking system for a motor housing is provided. In one example, braking system comprises a double disk brake configuration arranged in a motor housing. A working position of the double disk brake is configured to automatically adjust based on a condition of a friction pad of a friction disk.

An output shaft is configured by connecting a first shaft and a second shaft, coaxially arranged with each other, by a reverse input cutoff clutch 20; an end portion on one side in an axial direction of the second shaft located on an opposite side from the first shaft with a gear portion sandwiched in between in the axial direction being rotatably supported with respect to a fixed portion by a bearing device; the reverse input cutoff clutch having a function that, when rotational torque is input to the first shaft, transmits the rotational torque input to the first shaft to the second shaft, and when rotational torque is reversely input to the second shaft, completely cuts off the rotational torque reversely input to the second shaft and does not transmit the rotational torque to the first shaft, or transmits part of the rotational torque to the first shaft and cuts off the remaining portion.

A method for manufacturing a disc brake, the disc brake having a brake caliper and a brake actuation mechanism being supported in it, in which the brake actuation mechanism includes an amplification mechanism for introducing a clamping force, an adjustment device for compensation of lining wear with a torque clutch, a thrust element for transmitting the clamping force onto a brake disc and a reset device, which components are arranged around a rod, in which the torque clutch is formed as a roller-ramp-mechanism. A spring force can act onto the torque clutch by means of the reset device thereby forming a torque limit.

A braking system for a motor housing is provided. In one example, braking system comprises a double disk brake configuration arranged in a motor housing. A working position of the double disk brake is configured to automatically adjust based on a condition of a friction pad of a friction disk.