A drive belt assembly for a load handling device includes a drive belt; a drive wheel; and one or more driven wheels. A first tensioning arm, having a fixed end above an elbow and a rotatable distal end pivotally attached at the elbow, is horizontally displaceable relative to the drive wheel and driven wheels. A second tensioning arm is provided wherein the drive belt is routed around the first and second tensioning arms, and the first and second tensioning arms are arranged to put pressure on the drive belt to tension the drive belt.

A load handling device is disclosed for lifting and moving storage containers stacked in a grid framework structure having first and second sets of parallel rails or tracks. The load handling device includes: a body mounted on first and second sets of wheels arranged to engage with the tracks. A direction-change assembly is arranged to raise or lower the first set of wheels and or lower or raise the second set of wheels with respect to the body to engage and disengage the wheels with the tracks. The direction-change assembly includes a linkage-set having a series of members arranged between a traveller and a fixed brace, wherein the traveller is arranged to move under an applied force to cause the wheels to raise or lower.

A motorized cart for transporting game animals includes a cart body. The cart body has a support assembly generally horizontal to support a game animal and a handle assembly extending upwardly at an angle from the support assembly. The motorized cart includes a restraining system to securely hold the game animal to the support assembly. The motorized cart further includes wheels disposed on the cart body and supporting the cart body above the ground, a motor connected to at least one of the wheels, and a battery connected to the motor to supply electrical energy to the motor. The motorized cart further includes a control switch attached to the handle assembly and electrically connected to the battery and the motor to control the flow of electrical energy from the battery to the motor.

The present invention provides a movable vehicle. The movable vehicle comprises a carrying mechanism and a holding mechanism connected to the carrying mechanism, and the bottom of the carrying mechanism is provided with wheels, wherein the movable vehicle further comprises a starting mechanism arranged on the holding mechanism, the starting mechanism comprising a starting unit, a power supply unit, and a controller. The starting unit is configured to be switchable between an initial position and a start position. The controller is configured to be electrically connectable to the power supply unit, wherein when the starting unit is in the start position, the starting unit is coupled to the controller to activate the electrical connection between the controller and the power supply unit, and when the starting unit is in the initial position, the starting unit is decoupled from the controller. According to the above solution, a user can easily activate the electrical connection between the controller and the power supply unit simply by operating the starting unit on the holding mechanism, thereby allowing the controller to further perform various control operations.

The present invention provides a movable vehicle. The movable vehicle comprises a carrying mechanism and a holding mechanism connected to the carrying mechanism, and the bottom of the carrying mechanism is provided with wheels, wherein the movable vehicle further comprises a starting mechanism arranged on the holding mechanism, the starting mechanism comprising a starting unit, a power supply unit, and a controller. The starting unit is configured to be switchable between an initial position and a start position. The controller is configured to be electrically connectable to the power supply unit, wherein when the starting unit is in the start position, the starting unit is coupled to the controller to activate the electrical connection between the controller and the power supply unit, and when the starting unit is in the initial position, the starting unit is decoupled from the controller. According to the above solution, a user can easily activate the electrical connection between the controller and the power supply unit simply by operating the starting unit on the holding mechanism, thereby allowing the controller to further perform various control operations.

The present disclosure relates to a wheel built-in power system for an electric golf bag trolley, including a motor, and a worm wheel engaged with an output worm of the motor, a spindle of the worm wheel being connected to a hub of any wheel of the electric golf bag trolley. The wheel built-in power system for an electric golf bag trolley of present disclosure is small in size and light in weight, and can be installed in wheels of an electric golf bag trolley, thereby effectively reducing the size of the electric golf bag trolley after being folded, facilitating movement and storage.

Aspects relate to systems and methods for guided autonomous locomotion of a carriage, including a compartment configured to ensconce a child, a frame configured to support the compartment, a drive motor, a drivetrain operatively coupled to the drive motor; a drive wheel rotatably affixed to the frame, configured to contact a support surface and operatively coupled to the drivetrain, wherein operating the at least a drive motor causes the at least a drive wheel to rotate, an environmental sensor configured to sense an environmental characteristic related to an environment substantially surrounding the carriage; a battery configured to power the at drive motor and a controller configured to control the drive motor in response to the environmental characteristic.

A drive unit includes a frame, a drive wheel, an electric motor, a rotary member, and a brake mechanism. The drive wheel is rotatably supported by the frame. The electric motor is supported by the frame. The electric motor is configured to drive the drive wheel. The rotary member is configured to be rotated in conjunction with the drive wheel. The brake mechanism includes an engaging portion. The brake mechanism is switchable between a braking state and an unbraking state. The braking mechanism is set in the braking state such that the engaging portion is engaged with the rotary member so as to brake rotation of the rotary member. The braking mechanism is set in the unbraking state such that the engaging portion is disengaged from the rotary member so as to make the rotary member rotatable. Thus, a mobile object is prevented from unintentionally moving after stopping.

A detachment structure of a power-assisting battery, applicable to a cart, includes a support module, two motor wheel sets, and a battery module. The support module includes two structurally identical supports. One end of each support has a raised element and a dented element. The supports are fitted together because the raised elements engage with the dented elements. Each motor wheel set has an axle and a quick-release transmission connector. The battery module includes a battery holder, driver unit, and replaceable battery. The battery holder has a receiving chamber, waterproof cover, and fixing component. The driver unit includes a driver and a signal port. The battery is disposed in the receiving chamber and has a grip whereby the battery can be pulled by a user. The driver and the battery holder are integrated into the battery module. The fixing component allows the waterproof cover to be locked and unlocked.

One or more example embodiments relates to a method for braking a mobile medical apparatus having a first and second wheel, the method comprising determining a first wheel speed for the first wheel and a second wheel speed for the second wheel; determining a first braking quantity for the first wheel and a second braking quantity for the second wheel, the first braking quantity describing a strength with which the first wheel is braked and the second braking quantity describing a strength with which the second wheel is braked, wherein a smaller braking quantity is determined for a wheel with a lower wheel speed than for a wheel with a higher wheel speed among the first wheel and the second wheel; and applying the first braking quantity and the second braking quantity to brake the first wheel and the second wheel.