A device rack with a braking function includes a base, a column tube, a mounting member, a plurality of universal rolling members and a brake member telescopically and movably arranged to form the device rack with a braking release state and a braking state. The base achieves centered braking on the support surface by controlling the linked brake member, which facilitates a user to adjust operating state of the device rack to switch between a rotatable and translatable braking release state and a rotatable-only braking state.

A device rack with a braking function includes a base, a column tube, a mounting member, a plurality of universal rolling members and a brake member telescopically and movably arranged to form the device rack with a braking release state and a braking state. The base achieves centered braking on the support surface by controlling the linked brake member, which facilitates a user to adjust operating state of the device rack to switch between a rotatable and translatable braking release state and a rotatable-only braking state.

Methods and systems are provided for a device. In one example, the device is configured to automatically grab and slip a line. The device is further configured to decrease degradation to the line by limiting a rotation of the device via contact with the line.

A variable speed controlled device used for ascending and descending along a rope such as used in mountain climbing, tree climbing, rescue operations and the like. A friction mechanism controls the speed of the movement of the device along a rope line. A person can quickly and freely ascend a steep slope along a rope line. A person can also descend a steep slope along a rope line and be confident that a friction mechanism will control the rate of descent. An optional e-brake mechanism can further ensure the device will lock and prevent further downward movement if the person begins a freefall. The device allows other persons (e.g., a teammate, guide or rescue agency) to safely lower an incapacitated or unconscious person down, for example, an alpine mountain, burning building, cliff or the like.

A vehicle wheel torque brace for inhibiting rotation of a vehicle wheel includes a brace body including a relatively thick stopper portion and a relatively thin wedge portion that is stepped down in thickness relative to the wedge portion. The wedge portion decreases in thickness from one side of the brace body to an opposite side of the brace body. A contact pad is carried by the wedge portion. The contact pad and wedge portion are shaped and sized to be wedged between a tire of the vehicle wheel and a strut assembly to inhibit rotation of the vehicle wheel.

A vehicle wheel torque brace for inhibiting rotation of a vehicle wheel includes a brace body including a relatively thick stopper portion and a relatively thin wedge portion that is stepped down in thickness relative to the wedge portion. The wedge portion decreases in thickness from one side of the brace body to an opposite side of the brace body. A contact pad is carried by the wedge portion. The contact pad and wedge portion are shaped and sized to be wedged between a tire of the vehicle wheel and a strut assembly to inhibit rotation of the vehicle wheel.

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.

An energy-saving electromagnetic brake includes a base, a first winding coil, a second winding coil, and a control circuit component. The first winding coil is disposed inside the base, wherein the first winding coil has a first resistance value. The second winding coil is disposed inside the base and is disposed around the first winding coil, wherein the second winding coil has a second resistance value, and the second resistance value is greater than the first resistance value. The control circuit component is disposed inside the base and is electrically connected to the first winding coil and the second winding coil. In a first period, the control circuit component drives the first winding coil. In a second period, the control circuit component simultaneously drives the first winding coil and the second winding coil, and the first winding coil and the second winding coil are connected in series.

A brake system for maintaining an angular position of a spindle assembly. A pump-powered motor drives rotation of a spindle on the machine. When no rotation is desired, the spindle will slow, then stop at a desired angular orientation. A rotational sensor will determine the clock position, and a controller compares that to a desired angular orientation. If an error tolerance is exceeded, the motor will rotate the spindle back to the desired orientation.

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.