A brake device of the present invention includes: a wheel brake unit for braking a wheel; an electric motor for driving the wheel brake unit; a speed reducer for decelerating rotation of the electric motor; a rotation-linear motion converter for converting a rotational output of the speed reducer into a linear motion; and a braking force transmission member for transmitting the linear motion produced by the rotation-linear motion converter to the wheel brake unit.

A brake actuator (1, 1′) includes a casing (10), an electric motor for providing a driving torque, a cam disc (20) rotatably mounted to the casing (10) and operatively coupled to the electric motor, and a push rod (30) received in the casing (10), and configured to reciprocate in a longitudinal direction (100) between a retracted position (300) and an extended position (400). The push rod (30) and the cam disc (20) are operatively coupled such that a rotational movement of the cam disc (20) causes a linear movement of the push rod. A guiding member (40), in particular a bushing, is mounted to the casing (10), wherein the guiding member (40) guides the movement of the push rod (30) in the longitudinal direction (100).

A vehicle brake (2, 102), in particular a utility vehicle compressed-air disc brake, includes a brake caliper (4, 104), a pressure piece guide (8, 108), which is arranged in the brake caliper (4, 104), and a pressure piece (6, 106), which is guided in the pressure piece guide (8, 108) along a movement axis (10, 110). The pressure piece guide (8, 108) is designed as a recess (12, 112), and the pressure piece (6, 106) has an outer contour (14, 114) corresponding to the recess. The pressure piece guide (108) and/or the outer contour (14) of the pressure piece are/is divided, on both sides of the pressure piece (6), into a plurality of curved, mutually spaced partial surfaces (16, 116).

An example rotational joint assembly for a robotic medical system, the rotational joint assembly comprising at least one arm segment and a rotational joint provided at one end of the arm segment. The rotational joint is to allow the arm segment to rotate about a rotational axis. The rotational joint comprising a brake to lock rotation of the arm segment at the rotational joint and an actuator to selectively engage or disengage the brake. The actuator comprising a cam having two stable regions separated by two transition regions, the two stable regions comprising a first stable region corresponding to engagement of the brake and a second stable region corresponding to disengagement of the brake.

A brake caliper, in particular a sliding caliper, of a disc brake of a commercial vehicle includes a brake application portion, which extends around a holding space for holding at least one brake application device; a caliper back; two tension struts, which run substantially parallel and at a distance to one another and connect the brake application portion to the caliper back; a closure cover, which closes the holding space; and an interface for mounting a pivotable brake lever on the side of the brake application portion facing away from the closure cover. A mounting opening for inserting and removing brake pads is formed between the brake application portion, the caliper back and the tension struts. The ratio of the length of the brake application portion to the sum of the length of the brake application portion and the length of a tension strut is between 0.4 and 0.3.

An electronic parking brake device including: a plate part having a brake shoe rotatably mounted thereon; a housing part mounted on the plate part and configured to guide hydraulic pressure; a motor part mounted on the housing part, and driven when power is applied thereto; a piston part mounted on the housing part, and moved by hydraulic pressure so as to operate the brake shoe; and an operation part embedded in the housing part, disposed between the piston parts, and driven by the motor part so as to push the piston parts.

The invention proposes a disc brake having a brake caliper (1) and a tensioning device arranged therein for applying force to the brake linings of the disc brake, wherein part of the tensioning device is a brake lever (10) which can be actuated by a force element and preferably by a compressed air cylinder. The brake lever is composed of a lever arm (14), against which the force element is supported, and a brake application shaft (15), which is supported against a pressure piece (8) acting towards the brake linings, and is also supported from the inside against the brake caliper, wherein the brake caliper (1) and the brake application shaft (15) face each other and are formed as shells (21, 22) in which a supporting roller (20) with a roller axis (A) running transverse to the tensioning direction (Z) is mounted. To keep the mutual movability of the parts involved low by the simplest measures possible and without the need for additional parts, the supporting roller (20) is supported with the lateral surface (20A) thereof directly in one of the two shells (21, 22) and is designed to be non-rotatable or have only limited rotational movement with respect to this shell. The supporting roller (20) also serves as a means to centre the brake lever (10) laterally in the brake caliper. A supporting roller particularly suited to these purposes is also to be created.

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.