An electromechanical brake system includes: a pair of pad plates to which a brake pad is attached, respectively, to press a disc that rotates with a wheel; a carrier on which the pair of pad plates are installed; a caliper housing slidably installed on the carrier; a piston movably installed in forward and backward direction inside the caliper housing; a power transfer part configured to press the pair of pad plates onto the disc by moving the piston; a brake actuator including a drive motor configured to provide a rotational force of the drive motor to the piston, and a reduction gear part configured to decelerate the rotational force of the drive motor and transmit the decelerated rotational force to the power transfer part; a parking actuator connected to the brake actuator to maintain a parking braking state of a vehicle; a force sensor configured to detect a clamping force due to a contact between the disc and the brake pad; and a controller configured to control the brake actuator and the parking actuator, wherein the controller is configured to control the parking actuator based on the clamping force detected through the force sensor.

A multi-pawl park lock includes a gear wheel, an actuation ring, a first pawl, a second pawl, and first and second strut rods. The first pawl includes a first tooth and the second pawl includes a second tooth. The strut rods connect the actuation ring to respective pawls. The actuation ring is arranged to rotate in a first rotational direction to rotate the first pawl about a first pawl axis and engage the first tooth with the gear wheel, and rotate the second pawl about a second pawl axis and engage the second tooth with the gear wheel, preventing rotation of the gear wheel. The actuation ring is also arranged to rotate in a second rotational direction, opposite the first rotational direction, to rotate the first pawl and disengage the first tooth, and rotate the second pawl and disengage the second tooth, permitting rotation of the gear wheel.

A rebar tying machine wire feeding disc braking mechanism with positioning device has a braking part for stopping a wire feeding disc and a cam mechanism for controlling actions of the braking part. The cam mechanism has a cam and a push shaft mounted on a fixed seat, capable of axial displacement. One end of the push shaft presses against a rim of the cam and reciprocates along with the changing outline of the rim. A middle portion of the push shaft is a diameter-varying segment and presses against one end of the braking part such that the braking part swings forwards and backwards with the translation of the push shaft, the cam mechanism realizes stopping through the positioning device. The forward rotation inertia of the cam is eliminated such that the cam is stopped.

Described herein is a system, method of use and Self Retracting Lifeline (SRL) apparatus using a system that governs a dynamic response between members causing a halt in relative motion between the members. Magnetic interactions, eddy current drag forces and centrifugal and/or inertial forces may provide various mechanisms of governing movement.

A land vehicle includes a frame structure, a plurality of wheels, and an impact management system. The frame structure includes an operator cage that at least partially defines an operator cabin and a rear compartment positioned rearward of the operator cage in a longitudinal direction. The frame structure includes a pair of rails that each extends in the longitudinal direction from a first end arranged adjacent a pair of front wheels to a second end arranged adjacent a pair of rear wheels. The plurality of wheels are supported by the frame structure. The plurality of wheels includes the pair of front wheels and the pair of rear wheels. The pair of front wheels are positioned forward of the pair of rear wheels in the longitudinal direction.

There is disclosed an aircraft engine assembly including an engine having an engine shaft; an output shaft; a clutch in driving engagement between the engine shaft and the output shaft. The clutch has a first component in driving engagement with the engine shaft and a second component. The clutch is operable between first and second configurations. In the first configuration, the first component is rotatable relative to the second component and the engine shaft is rotatable relative to the output shaft. In the second configuration, the first and second components are engaged with one another and the engine shaft rotates with the output shaft. A mechanical lock is operable between first and second positions. In the first position, the mechanical lock is disengaged from the first component. In the second position, the first and second components are secured for joint rotation one relative to the other.

A brake-side clutch part includes an outer ring whose rotation is restricted and an output shaft from which rotation is output. The outer ring is provided with a slide gear that meshes with the output shaft when rotational torque is cut off and releases a meshing state with the output shaft when rotational torque is transmitted. The output shaft is provided with an inner gear that meshes with the slide gear so as to be slightly rotatable. An alignment part that aligns a phase of the inner gear with that of the slide gear when rotational torque is cut off, and a centering part that returns the inner gear to a neutral position with respect to the output shaft when rotational torque is transmitted are provided between the inner gear and the output shaft.

A parking brake includes an inhibitor device (31), which can be associated with a drive shaft (3) for rotating therewith, the inhibitor device (31) being actuated by centrifugal force. The parking brake further includes a locking member (33) adapted to engage the inhibitor device (31) when actuated. The inhibitor device (31) is configured to prevent the engagement of the locking member with the inhibitor device when the inhibitor device rotates at a speed greater than a minimum speed, so as to prevent the application of the parking brake.

A rotating body for a rotation restricting mechanism rotates integrally with a motor, and the rotation of the rotating body is restrictable by engagement with an engaging pin. The rotating body includes a plurality of radial-support parts that extend in a radial direction, with the inner end portions thereof connected to the motor, a plurality of first-circumferential-connecting parts each connecting the inner end portions of two mutually-adjacent radial-support parts, a plurality of second-circumferential-connecting parts each connecting the outer end portions of two mutually-adjacent radial-support parts, and a plurality of engaging protrusions provided in the outer end portions of the radial-support parts. Two mutually-adjacent engaging protrusions in the circumferential direction have an interval therebetween that allows movement of the engaging pin in the circumferential direction between the two mutually-adjacent engaging protrusions.

An electronic mechanical brake system and a vehicle. The electronic mechanical brake system includes a brake pedal, an electronic brake mechanism, a mechanical brake mechanism, a brake, and a switch mechanism with a first state and a second state. The electronic brake mechanism includes a controller and an electronic signal sensor. The controller, the electronic signal sensor, and the brake are electrically connected. When the switch mechanism is in the first state, the electronic signal sensor is configured to receive a braking signal of the brake pedal and transmit the braking signal to the controller. The controller controls the brake to brake based on the braking signal. The electronic mechanical brake system can improve driving safety. In addition, reliability of the mechanical brake system is high, and costs are low.