A foldable rollable golf bag trolley comprising a push handle assembly, a front leg assembly a left rear leg assembly, a right rear leg assembly, a folding mechanism having two universal joint sub-assemblies, a series of hubs and ramp discs, wherein said components of the folding mechanism are aligned about a central axis of a main pivot shaft in a first position. The folding mechanism further comprising a plurality of locking gears and springs wherein the two universal joint sub-assemblies and a left and right ramp disc cause a left rear hub and a right rear hub to move in two dimensions when the folding mechanism is engaged in a second position.

A wagon having a wagon frame, a push bar and a handle is provided. The wagon frame has a first end assembly and an opposing second end assembly. First and second rear wheels are rotatably connected to the wagon frame adjacent the second end assembly, and first and second front wheels are rotatably and pivotally connected to the wagon frame adjacent the first end assembly. The handle is pivotally connected to the first end assembly, and the push bar is pivotally connected to the second end assembly. The push bar is lockably positionable in a plurality of use positions and a storage position with a ratchet mechanism.

A robotic surgery cart has a pair of rear wheel assemblies and a pair of front wheel assemblies. A brake assembly for the robotic surgery cart includes a gearbox interposed between and connected to the pair of rear wheel assemblies by rotatable shafts. Elongate actuators extend between and interconnect the rotatable shafts and brake mechanisms for the front wheel assemblies. A pedal lever is rotatably coupled to the gearbox and can rotate clockwise by pressing one portion of the pedal lever and can rotate counterclockwise by pressing another portion of the pedal lever. Rotation of the pedal lever causes the gearbox to rotate the rotatable shafts to substantially lock the pair of rear wheel assemblies, and substantially simultaneously causes a translation of the elongate actuators to actuate the brake mechanisms of the front wheel assemblies, such that the wheels of the front and rear wheel assemblies brake substantially simultaneously.

A roller component and trolley. The trolley component includes the positioning seat, braking part, and roller that are respectively installed on the guiding shaft. The end of the shaft ring is cam surface, putting or relieving pressured to the end of the rollers when bring rotated, forming the braking structure; the trolley includes front bar, rear bar, bottom bar, handle bar, and flexible bag. The roller components are installed on the two sides of the guiding shaft under the rear bar, providing support and facilitating braking of the trolley.

A wheel structure that makes braking easy and prevents sudden stops, and a pushcart having the wheel structure are provided. The wheel structure includes a rotor that is rotatable about an axle and is stopped from rotating by a brake member, a wheel that is coaxial with the rotor and is rotatable about the rotor, and a relative-rotation resisting member that is disposed between the rotor and wheel and produces resistance force resisting the relative rotation of the rotor and wheel.

The present disclosure provides a brake device for a wheel set of a baby carriage, which including a first brake mechanism, a second brake mechanism and a traction element. The first brake mechanism is arranged on a first wheel of the baby carriage for locking or unlocking the first wheel, and the second brake mechanism is arranged on a second wheel of the baby carriage for locking or unlocking the second wheel. The traction element is connected between the first brake mechanism and the second brake mechanism. The brake device of the present disclosure may perform braking by stepping down at a side and perform unlocking by stepping down at the other side, without lifting the pedal with a foot or feet, thereby ensuring a vamp of the user to be clean.

A wheeled cart includes a collapsible basket assembly configured to transport a variety of objects placed within. A brake lever arm is pivotably attached to the basket assembly and pivotable about a brake lever arm axis. A brake lever arm distal end is engaged by a user's foot to move between a released position and a braked position. The brake lever arm includes a brake feature. An inside face of a wheel includes a plurality of stops radially disposed about its axis. In the braked position the brake feature is configured to be positioned between at least two of the plurality of stops of the respective rear wheel thereby preventing rotation of the wheel. In the released position the brake feature is configured to be positioned outside the plurality of stops thereby allowing rotation of the wheel.

An object to provide a brake device for a caster that has a simple structure, provides reliable braking, has no risk of damaging the circumferential surface of a roller, and has high durability. The brake device for a caster includes: a plurality of projecting parts formed concentrically at regular intervals on opposite side-surfaces of a roller in a direction in parallel with the axis, and levers set across the roller at both side-panels of a fork so as to be opposed to the projecting parts, and a claw formed at a tip of each of the levers so as to be opposed to the projecting parts, wherein the levers are operated so that the claw is engaged with a concave part formed between the projecting parts, thereby locking rotation of the roller.

The present disclosure provides a retractable folding trolley, including a frame and a storage bag detachably mounted on the frame. The frame includes a support rod, a first retractable rod crosswise arranged around the frame, and a second retractable rod crosswise arranged at the bottom of the frame. A first connecting seat is mounted at the bottom of the support rod, a second connecting seat is slidably mounted on the support rod, a third connecting seat and a locking seat are arranged at the bottom of the frame, and one end of the second retractable rod is hinged to the locking seat. The overall size and height of the folding trolley of the present disclosure after retraction are smaller than those of a conventional folding trolley, which is convenient for storage and carrying.

A chair caddie, comprises a central hub and four arms. Each of the four arms is coupled to and extends outwardly from the central hub and is adapted to support a chair leg. Each arm is supported by a surface-engaging roller. The surface-engaging rollers cooperate to elevate the arms and the central hub above a planar surface engaged by the surface-engaging rollers. Each arm carries a chair foot receptacle adapted to receive and support a chair foot, and each roller is positioned inboard of the chair foot receptacle on its respective arm. The chair foot receptacles define a notional chair footprint circumscribing the chair foot receptacles, and the surface-engaging rollers have centers of rotation that are inside the chair footprint.