The invention describes a releasable wheel mount system for a rollator comprising a wheel axel (1) fastened to a frame (2) comprising a groove (3) near an outer end of the wheel axel (1) and a circular sloped gliding surface (25) at the outer end. The system further comprises a release trigger (4) engaging the groove (4) by means a locking shape (5) locking the release trigger (4) and wheel axel (1) to each other, and releasing the release trigger (4) from the wheel axel (1) a releasing shape (6). The system further comprises a housing (7) with a central cylinder (8) with a cavity accommodating the wheel axel (1), an outer (9) and inner (10) rim stopper, and a trigger cavity (11) accommodating the release trigger, thus locking the release trigger (4) and housing (7) to each other and to the wheel axel.

The invention describes a releasable wheel mount system for a rollator comprising a wheel axel (1) fastened to a frame (2) comprising a groove (3) near an outer end of the wheel axel (1) and a circular sloped gliding surface (25) at the outer end. The system further comprises a release trigger (4) engaging the groove (4) by means a locking shape (5) locking the release trigger (4) and wheel axel (1) to each other, and releasing the release trigger (4) from the wheel axel (1) a releasing shape (6). The system further comprises a housing (7) with a central cylinder (8) with a cavity accommodating the wheel axel (1), an outer (9) and inner (10) rim stopper, and a trigger cavity (11) accommodating the release trigger, thus locking the release trigger (4) and housing (7) to each other and to the wheel axel.

An axle assembly having a hose, a spindle plug, a sleeve, and a rotary union adapted to be fluidly connected to a tire. The spindle plug may be disposed in a spindle. The hose may be fluidly connected to the rotary union. The sleeve may encircle the hose and extend from the spindle plug to a stator of the rotary union. The sleeve cooperates with the spindle plug to limit rotation of the stator and the hose.

An axle assembly having a hose, a spindle plug, a sleeve, and a rotary union adapted to be fluidly connected to a tire. The spindle plug may be disposed in a spindle. The hose may be fluidly connected to the rotary union. The sleeve may encircle the hose and extend from the spindle plug to a stator of the rotary union. The sleeve cooperates with the spindle plug to limit rotation of the stator and the hose.

A snap lock device for securing a wheel assembly to an axle is provided. The snap lock device may be formed from one integral piece. The snap lock device may include a hubcap and a first and second clip extending from the hubcap. The first and second clips may include a spring, an engagement member, and an actuator. The spring may be directly coupled to the hubcap. The snap lock device may be installed in the wheel assembly by inserting the cap assembly in the wheel assembly such that the first and second clip are placed in two apertures of a wheel and the springs bias the engagement members toward a center of a bore defined in the wheel for receiving the axle. The snap lock device can allow for tool-less installation and removal of the axle.

A snap lock device for securing a wheel assembly to an axle is provided. The snap lock device may be formed from one integral piece. The snap lock device may include a hubcap and a first and second clip extending from the hubcap. The first and second clips may include a spring, an engagement member, and an actuator. The spring may be directly coupled to the hubcap. The snap lock device may be installed in the wheel assembly by inserting the cap assembly in the wheel assembly such that the first and second clip are placed in two apertures of a wheel and the springs bias the engagement members toward a center of a bore defined in the wheel for receiving the axle. The snap lock device can allow for tool-less installation and removal of the axle.

A drive axle for a work machine for driving wheels that are coupled to the drive axle. The drive axle includes a spur gear stage with an input shaft. A differential gear unit couples to the spur gear stage and to the wheels via wheel drive shafts. The drive axle further includes a reduction gear unit with an output element couples to the input shaft of the spur gear stage—and an input element which couples to an output shaft of an electric drive machine.

A drive axle for a work machine for driving wheels that are coupled to the drive axle. The drive axle includes a spur gear stage with an input shaft. A differential gear unit couples to the spur gear stage and to the wheels via wheel drive shafts. The drive axle further includes a reduction gear unit with an output element couples to the input shaft of the spur gear stage—and an input element which couples to an output shaft of an electric drive machine.

A swing type wheel locking device includes a wheel axle and a pivoting part. A wheel body has an outer wheel face and an axle hole fitted on the periphery of the wheel axle at a position close to the axle end part. A plurality of positioning concave parts are arrayed in a circle on the outer wheel surface. A swing type wheel locking component is pivoted on the wheel axle and has a pivoting end and a swing section. The pivoting end is pivoted on the pivoting part, so that the swing section can be forced to swing, and by choosing different swing angles, it can be shifted between a locked position and released position. When a clamping convex part of the swing section is at a locked position, it is locked right inside the corresponding positioning concave part. Thus, the wheel body is locked against rotation.

A wheeled luggage case comprises (a) a storage chamber, (b) a cover defining an opening on at least one side of the storage chamber for providing ready access therein and at least two labyrinth axle-free wheels operatively connected to the chamber for towing the case along a ground surface. The labyrinth axle-free wheel comprises an internal rim, an external rim provided with a ground interface, rollers being rotatably disposed within a roller spacer between the internal and external rims in a uniform circumferential manner by means of a spacer and external covers. A labyrinth type dust passage in the wheel is defined by the rims and the external plates mechanically connected to the internal rim.