Provided is a wheel which is inexpensive, light, and sufficiently rigid. A wheel 6a includes an annular rim 60 to which a tire 6b is externally fitted, a hub 61 which is arranged at a center portion of the rim 60 and to which an axle is connected, and a disk 62 which is attached with the rim 60 at a periphery portion and which covers one side of the wheel 6a. The disk 62 includes a planar portion 62a and a first rib 62b provided at a surface of one side of the planar portion 62a and extending in the radial direction. The planar portion 62a is provided with a first groove 62d at a surface of the other side at a position corresponding to the first rib 62b.

In an aspect, there is provided a wheel for a human-powered vehicle, comprising a wheel hub (6) rotatably mountable on a central axle (5) defining a wheel rotation axis, a first cover (1) secured to the wheel hub, a circumferential rim (1c) structured to fully support a tyre (4) thereon, and a second cover (2) secured to one of the wheel hub and the first cover adjacent the wheel hub, and mating with the first cover distal from the wheel hub.

A two-part gate wheel is disclosed. The gate wheel includes two hub portions, each of which extends through over 180?, and which has a slot which passes from the periphery through to the centre. In use, each hub portion can be introduced from opposed sides of a gate, and coupled together to form a wheel. In this way the wheel can be retro-fitted onto a gate.

A bicycle disc wheel comprises a first disc panel and a second disc panel. The first disc panel has a first side outer surface and a first side inner surface and the second disc panel has a second side outer surface and a second side inner surface. The first side outer surface radially extends from a first disc panel outer perimeter to a center opening and the second side outer surface radially extends from a second disc panel outer perimeter to the center opening. The second side inner surface faces the first side inner surface. A brace is coupled to the first side inner surface and the second side inner surface that provide radial and axial structural support to the disc panels.

The present invention discloses an obstacle-adaptive mechanism of a moving device, which uses a driving wheel, a driving gear, a passive wheel, a passive gear and an intermediate gear as a transmission mechanism, wherein the driving gear is connected to one side of the driving wheel, the passive gear is connected to one side of the passive wheel, the intermediate gear is disposed between the driving gear and the passive gear to keep the driving wheel and the passive wheel rotating in the same direction to help crossing an obstacle, thereby preventing the obstacle-adaptive mechanism from being stuck by the obstacle and allowing the obstacle-adaptive mechanism to successfully crossing the obstacle. Therefore, the obstacle-adaptive mechanism of the moving device can provide the ability for crossing obstacles.

A hybrid wheel including a functional rim, a center disc, and a wheel face insert, wherein the wheel rim and the center disc are made of a specified material, and wherein the wheel face insert is made of a dissimilar material. The wheel face insert can be secured to the center disc by at least one of screws, pins, rivets, or structural adhesive, and/or the wheel face insert can be secured to the functional rim by at least one of screws, pins, rivets, or structural adhesive.

The present invention relates to a coating and a frame for wheels. The coating has a hollow cylindrical configuration and extends radially between inner and outer portions. The outer portion acts as a tread element and confers the ability to maintain, in use, contact with the ground, to such coating. The inner portion defines a plurality of engagement elements. The frame comprises a hub, a crown and a supporting element which operates in connection between the hub and the crown. The crown is arranged peripherally with respect to the hub and acts as a support element for the coating when the coating is applied to the frame so as to externally encircle the crown. The crown defines a plurality of engagement elements. The engagement elements of the coating and the crown create an interference-type coupling between the coating and the frame, generating forces in the tangential direction.

A bicycle wheel includes a first panel member including a first rim portion for mounting a tire, a first hub mounting end connected to a hub, a first spoke portion for connecting the first rim portion and the first hub mounting end, a second panel member having a second rim portion for mounting the tire, a second hub mounting end connected to the hub, and a second spoke portion for connecting the second rim portion and the second hub mounting end, wherein the bicycle wheel is formed by joining the first panel member and the second panel member together such that the first panel member and the second panel member are symmetrical to each other about a line passing through the hub and the rim.

The present invention discloses a resistance force control structure of driven pulley device, which is pivot mounted on a wheel of a driven pulley device, and primarily uses damping oil or a magnetic force to achieve a resistance effect. The magnetic force portion can also be added to a gear structure to present another configuration of a resistance force control structure to achieve change in magnetic force to increase the stabilizing effect of a wheeled frame. Moreover, an adjustable mechanism enables the user to control changes in the height of the damping oil level or magnetic force strength to control the rotational speed of a wheel.

A hybrid wheel including a functional rim, a center disc, and a wheel face insert, wherein the wheel rim and the center disc are made of a specified material, and wherein the wheel face insert is made of a dissimilar material. The wheel face insert can be secured to the center disc by at least one of screws, pins, rivets, or structural adhesive, and/or the wheel face insert can be secured to the functional rim by at least one of screws, pins, rivets, or structural adhesive.