A fall-protection apparatus with a rotationally-activated braking device including at least one first pawl that is a velocity-actuated pawl and at least one second pawl that is an acceleration-actuated pawl, the at least one first pawl and the at least one second pawl being independently actuated and independently functioning.

A braking system for slideway guided amusement vehicles providing both manual and automatic braking for the slideway guided amusement vehicles is provided. The braking system includes at least one brake handle, a first shaft fixed to the at least one brake handle, a first gear concentrically positioned on and free to spin independently of the first shaft, an actuator fixed to the first shaft for providing a linear motion to a stop pin, an inlet opening on the first gear for receiving the stop pin, a second gear coupled to the first gear, concentrically fixed on a second shaft for mounting spinnably and extending horizontally to a chassis of a vehicle, at least one friction member attached to the second shaft, a tensioning means, and a control unit adapted to remove the stop pin from the inlet opening via the actuator.

A fall-protection apparatus with a drum and a rotationally-activated braking device including at least one velocity-actuated pawl that is mounted on a pawl-support plate that is rotatable relative to the drum through a predetermined range between a first position and a second position. The pawl-support plate is rotatable relative to the drum from the first position to the second position upon the pawl-support plate experiencing a rotational acceleration that is above a predetermined threshold value of rotational acceleration. When the pawl-support plate is in the second position, the velocity-actuated pawl can be actuated by a rotational velocity that is lower than a rotational velocity required to actuate the pawl when the pawl-support plate is in the first position.

A system with a vertically adjustable telescoping pole assembly and cramp brake mechanism includes a telescoping pole assembly with at least an outer pole and an inner pole. The pole assembly is movable bi-directionally between a closed position and an extended position. The cramp brake mechanism has a body that is secured to the outer pole of the pole assembly, and also includes a brake that releases while the pole assembly is moved to the extended position and engages when the assembly is not being moved.

Provided is a clutch unit in which an output-side outer ring member is attached to a base plate without welding. A clutch unit (100) includes an output-side clutch (60) and a housing (11) that accommodates the output-side clutch (60). The output-side clutch (60) includes an output-side outer ring member (62). The output-side outer ring member (62) and the housing (11) have an engagement protrusion (62s) and an engagement groove (11s) that engage with each other to restrict relative rotation therebetween.

Safety brakes for circular saw blades, circular saws that include the safety brakes, and methods of operating circular saws are disclosed herein. The safety brakes include a sensor assembly, a brake assembly, and an actuator assembly. The sensor assembly is configured to detect an actuation parameter and to generate a trigger signal responsive to detection of the actuation parameter. The brake assembly includes a brake cam and a brake pad. The brake cam is configured to selectively transition between a disengaged configuration and an engaged configuration and is configured to operatively engage a planar side surface of the circular saw blade. The brake pad includes a pad friction material and is positioned such that the pad friction material faces toward the brake cam. The actuator assembly is configured to selectively transition the brake cam from the disengaged configuration to the engaged configuration responsive to receipt of the trigger signal.

A bicycle braking and parking device includes a casing, two brake pads, a locking pin, and an electromagnetic driver. The casing has an accommodation space and two pistons located at two opposite sides of the accommodation space. The accommodation space can accommodate part of a brake disk. The brake pads are located at the accommodation space and located between the pistons. The pistons can push the brake pads, and the brake pads can clamp the brake disk. The locking pin is movably disposed on the casing. The electromagnetic driver can force the locking pin to move between a released position and a locked position. when the locking pin is in the released position, the locking pin is separated from the brake disk. When the locking pin is in the locked position, the locking pin is inserted into the brake disk to limit a motion of the brake disk.

A caster wheel brake system for carts and other wheeled articles is operable to secure caster wheels against rolling rotation along their horizontal rotation axes. The system includes a pivotable parking brake lever, an actuator arm, and a torque shaft extending between the brake lever and actuator arm. The brake lever includes a distal end portion for selectively engaging a caster wheel, a proximal end portion opposite the distal end portion, and a pivot coupling, the latter being pivotably secured to the cart or wheeled article. An actuator arm extends outwardly from a distal end portion of the torque shaft, with the actuator arm slidably engaging the proximal end portion of the brake lever. The torque shaft and the actuator arm are rotatable together to urge the brake lever toward the braking or non-braking position

An electromechanical actuator device comprises a fixed part, a first movable part and a second movable part each arranged to move with respect to the fixed part along an actuation direction. A conductive coil (20) is wrapped around a core (28) and is housed within the fixed part (4). The first movable part (6) is coupled to the fixed part (4) by at least one restorative component (10) such that, in a working position, the first movable part (6) is separated from the fixed part (4) along the actuation direction (22) by a first actuation distance (d1). The second movable part (8) is coupled to the first movable part (6) by at least restorative component (16) such that, in the working position, the second movable part (8) is separated from the first movable part (6) along the actuation direction (22) by a second actuation distance (d2).

A spring brake actuator for applying a brake of a vehicle includes a housing containing a diaphragm that separates the housing into first and second chambers. A clutch actuator device is for selectively compressing a compression spring such that the spring brake actuator is operable in a plurality of states including a parking state, driving state, and a braking state.