A commercial vehicle includes at least one driven axle, a service brake, at least one propulsion engine, and wheels. A parking brake function of the vehicle is achieved by a bistable locking means that acts on both wheels. A first and second multi-speed gearbox having respective first and second gear stages are each activated by an actuator and coupled to the wheels. The parking brake function is achieved at least in-part by concurrently activating the first and second gear stages. A computing device is configured to activate the bistable locking means when the commercial vehicle is at a standstill and configured to send a brake request via an electronic signal to an electronic brake control unit to activate the service brake.

A footwear system can employ a brake and/or a clutch, such as a one-way clutch, to convert human motion into usable electricity. The brake and one-way clutch can be used together, such as on opposite ends of a spring. During a storage phase, the brake can be engaged and the one-way clutch disengaged so the spring stores an energy. After the storage phase, the brake can be removed to initiate the release phase since the brake is not stopping the spring, but the one-way clutch allows the stored energy to be released.

A footwear system can employ a brake and/or a clutch, such as a one-way clutch, to convert human motion into usable electricity. The brake and one-way clutch can be used together, such as on opposite ends of a spring. During a storage phase, the brake can be engaged and the one-way clutch disengaged so the spring stores an energy. After the storage phase, the brake can be removed to initiate the release phase since the brake is not stopping the spring, but the one-way clutch allows the stored energy to be released.

A joined component includes a first member provided with a first joint surface having an arranging part where a brazing filler material is arranged, a second member joined to the first member by brazing, and provided with a second joint surface having an accommodating recess that opposes the arranging part, a guide groove formed in the first joint surface or the second joint surface, and extending from the arranging part or the accommodating recess toward a fringe of the first joint surface or the second joint surface, and a chamfer formed along the fringe of the first joint surface or the second joint surface, and the guide groove communicates to the chamfer.

A commercial vehicle with at least one driven axle, at least one service brake, at least one propulsion engine, and wheels characterized in that the parking brake function of the vehicle is solved by a bistable locking means acting on both wheels. At least one multi-speed gearbox is provided to concurrently activate a first gear stage and a second gear stage having different ratios.

A commercial vehicle with at least one driven axle, at least one service brake, at least one propulsion engine, and wheels characterized in that the parking brake function of the vehicle is solved by a bistable locking means acting on both wheels. At least one multi-speed gearbox is provided to concurrently activate a first gear stage and a second gear stage having different ratios.

A brake for a drum washing machine and a drum washing machine are disclosed. The brake includes a brake disk, provided on a second shaft; a brake seat, provided with a slideway; a brake pawl, provided to the brake seat, switchable between a state of holding the brake disk and a state of releasing the brake disk; a brake lever, slidably fitted with the slideway between an extending position and a retracting position, and the brake pawl is switched to the tightening state when the brake lever is at the extending position, and the brake pawl is switched to the releasing state when the brake lever is at the retracting position; a brake driver, mounted to the brake seat and in transmission connection with the brake lever, the brake driver driving the brake lever to move between the extending position and the retracting position.

A brake for a drum washing machine and a drum washing machine are disclosed. The brake includes a brake disk, provided on a second shaft; a brake seat, provided with a slideway; a brake pawl, provided to the brake seat, switchable between a state of holding the brake disk and a state of releasing the brake disk; a brake lever, slidably fitted with the slideway between an extending position and a retracting position, and the brake pawl is switched to the tightening state when the brake lever is at the extending position, and the brake pawl is switched to the releasing state when the brake lever is at the retracting position; a brake driver, mounted to the brake seat and in transmission connection with the brake lever, the brake driver driving the brake lever to move between the extending position and the retracting position.

This application provides a gear shifting mechanism, a two-speed gearbox, and a vehicle. The gear shifting mechanism includes a drive motor, a shifting drum, and a first shifting mechanism. The first shifting mechanism includes a first shifting fork, an inner shaft, an outer hub, a first coupling pin, and an elastic component. The elastic component is sleeved on the inner shaft and is located between the inner shaft and the outer hub. There are a first limiting portion and a second limiting portion between the outer hub and the inner shaft. The elastic component is located between the first limiting portion and the second limiting portion. The first limiting portion is connected to one of the outer hub and the inner shaft, and the second limiting portion is connected to the other of the outer hub and the inner shaft.

This application provides a gear shifting mechanism, a two-speed gearbox, and a vehicle. The gear shifting mechanism includes a drive motor, a shifting drum, and a first shifting mechanism. The first shifting mechanism includes a first shifting fork, an inner shaft, an outer hub, a first coupling pin, and an elastic component. The elastic component is sleeved on the inner shaft and is located between the inner shaft and the outer hub. There are a first limiting portion and a second limiting portion between the outer hub and the inner shaft. The elastic component is located between the first limiting portion and the second limiting portion. The first limiting portion is connected to one of the outer hub and the inner shaft, and the second limiting portion is connected to the other of the outer hub and the inner shaft.