An auto reset zip line assembly comprising a cable running along the circumference of two pulleys that are spaced apart forming a closed loop is provided. A pair of rigid frames are fixedly coupled to the cable at an equal distance from each other. The pulley includes a wheel having a rim that has a continuous trough along the circumference to retain the cable. The wheel is rotatably mounted on a shaft and the shaft is mounted to a hosing. The pulleys include a mechanism to suspend a zip line assembly between two vertical supports. The auto reset zip line assembly further comprises a braking mechanism and a pair of guarding plates coupled to the housing to prevent derailing and entangling of the cable. The invention is advantageous by providing a safe zip line assembly that obviated the need of returning a trolley to the starting point of the zip line.

An elevator brake braking and holding an elevator car in an elevator system includes a first brake lining having a first actuating device and a second brake lining, which brake linings cause braking in interaction with a braking strip or brake disk. A second actuating device is associated with the second brake lining, and the second actuating device moves the second brake lining toward the first brake lining, if necessary, thus clamping and braking the braking strip or the brake disk between the second and first brake linings. The first actuating device moves the first brake lining toward the second brake lining to clamp and brake the braking strip or the brake disk between the first and second brake linings. The first and the second actuating device operate according to different principles of operation.

An adjustable resistance system for use with an indoor cycle comprising a magnetic resistance assembly, a friction brake assembly, and a resistance adjustment assembly.

An arm is pivotally coupled to a support structure at one end and a patient care equipment support, such as a service head, is pivotally coupled to the arm at the other end. The arm has a first portion and a second portion coupled to the first portion for extension and retraction relative to the first portion. Brakes are provided to brake the extension and retraction of the portions of the arm, to brake the pivoting movement of the arm relative to the support structure, and to brake the pivoting movement of the patient care equipment support relative to the arm. Each of the brakes is releasable.

The present invention is provided with a power transmission member rotatably supported by a caliper, and a ratchet wheel fixed by the member. A first linear direction movement of a pawl member that engages with a mobile member of a solenoid is guided by a guide member fixed by the caliper. The pawl member is continuously pressed in a release direction by an elastic member. The interlocking force in an interlocking direction, imparted by mobile member of the solenoid mobile member to the pawl member, and the release force in the release direction, which is imparted by the elastic member to the pawl member oppose each other, and the interlocking force is larger than the release force. The pawl member and the mobile member move linearly together in one of the interlocking direction and the release direction.

The invention relates to an autonomous retarder system for a vehicle including a retarder (10) having a central rotor (11) and two stators (12), one on each side of the rotor (11). The rotor (11) is rigidly coupled to an axle (1). A generator (20, 30, 50) is also included, coupled to the retarder (10), for supplying same with electrical energy. In addition, the generator (20, 30, 50) comprises a stator (22) and a rotor (21, 31, 51) coupled to the retarder.

A spindle unit includes a support shaft, an electromagnetic air-gap brake, a spindle member, and a coupler. The support shaft is attached to the stationary frame of a creel. The brake is connected to the front end of the support shaft. The spindle member is rotatably supported by the support shaft in a state in which the support shaft and the brake are inserted in the spindle member. The coupler couples the spindle member and the brake shaft.

A vehicle includes active grill shutters and a controller. The active grill shutters are configured to open to increase a drag on the vehicle and to close to decrease the drag on the vehicle. The controller is programmed to, in response to regenerative braking via an electric machine and an absence of friction braking, transition or maintain the active grill shutters to or in a closed position. The controller is further programmed to, in response to friction braking, transition or maintain the active grill shutters to or in the open position.

A vehicle includes active grill shutters and a controller. The active grill shutters are configured to open to increase a drag on the vehicle and to close to decrease the drag on the vehicle. The controller is programmed to, in response to regenerative braking via an electric machine and an absence of friction braking, transition or maintain the active grill shutters to or in a closed position. The controller is further programmed to, in response to friction braking, transition or maintain the active grill shutters to or in the open position.

An electromagnetic brake includes a hub disposed about a shaft and configured for rotation with the shaft about a rotational axis. An electromagnet assembly is fixed against rotation about the axis and includes a housing defining axially extending, radially spaced inner and outer poles and a brake plate extending radially therebetween. A conductor is disposed between the poles on one side of the brake plate. An armature is disposed on the other side of the brake plate and coupled to a body driven by the shaft. The electromagnet assembly, armature and hub form an electromagnetic circuit when the conductor is energized urging the armature towards the brake plate. A portion of the magnetic flux in the circuit travels radially inwardly across a first radial air gap from the inner pole to the hub and then radially outwardly across a second radial air gap from the hub to the brake plate.