Provided is a coupling unit for coupling a tire to a rim, the coupling unit including an upper surface, a lower surface, and side surfaces, in which a maximum length of the coupling unit is larger than a distance between both hooks of the rim, the side surfaces include sliding areas that are slidable with respect to the hooks of the rim such that the coupling unit is easily inserted into the rim while the coupling unit is being inserted into the rim, and in a state in which the coupling unit is completely inserted into the rim, at least a part of the upper surface is in surface contact with lower surfaces of the hooks to prevent the coupling unit from being separated from the rim.

A bicycle rim for carrying a tire. The rim includes a circumferential tire bed including first and second opposing edge regions a circumferential spoke face, and first and second side walls extending from the spoke face to the first and second edge regions, respectively. The first and second side walls include first and second side wall extensions radially extending from the first and second opposing side regions and terminating at first and second outer radial edges, respectively. Each of the first and second outer radial edges defining a maximum width that is at least 3.8 mm.

The present invention provides a bicycle rim assembly adapted to be coupled to a hub to create a bicycle wheel. The rim assembly includes a rim and a cover coupled to the rim. The rim defines a central plane and comprises an annular inner wall and an annular outer wall cooperating with the inner wall to define a cavity. The rim further includes annular projections spaced laterally relative to the central plane and extending substantially radially outwardly from the outer annular wall. The cover includes sidewalls disposed on lateral sides of the rim adjacent the projections, each sidewall including a lateral inner portion having a lateral thickness. The cover further includes an annular ring portion interconnecting the sidewalls, the annular ring portion including a radial thickness less than the lateral thickness of the lateral inner portion of the sidewalls. Preferably, the rim comprises a metallic material and the cover comprises a non-metallic material. For example, the rim can comprise aluminum or an epoxy matrix composite, and the cover can comprises a polymeric material, such as ultra-high molecular weight polyethylene. In addition, a radial thickness of the entire cover is preferably substantially less than a radial thickness of the entire rim. In one embodiment, the projections include a laterally inwardly facing surface, a laterally outwardly facing surface, and a radially outwardly facing surface. In this embodiment, the cover engages at least a portion of each of the laterally inwardly facing surface, the laterally outwardly facing surface, and the radially outwardly facing surface. Preferably, each annular projection has a smoothly radiused radially outwardly facing surface, and each laterally outwardly facing surface that lies in a radial plane substantially parallel to the central plane.

The present invention provides a bicycle rim assembly adapted to be coupled to a hub to create a bicycle wheel. The rim assembly includes a rim and a cover coupled to the rim. The rim defines a central plane and comprises an annular inner wall and an annular outer wall cooperating with the inner wall to define a cavity. The rim further includes annular projections spaced laterally relative to the central plane and extending substantially radially outwardly from the outer annular wall. The cover includes sidewalls disposed on lateral sides of the rim adjacent the projections, each sidewall including a lateral inner portion having a lateral thickness. The cover further includes an annular ring portion interconnecting the sidewalls, the annular ring portion including a radial thickness less than the lateral thickness of the lateral inner portion of the sidewalls. Preferably, the rim comprises a metallic material and the cover comprises a non-metallic material. For example, the rim can comprise aluminum or an epoxy matrix composite, and the cover can comprises a polymeric material, such as ultra-high molecular weight polyethylene. In addition, a radial thickness of the entire cover is preferably substantially less than a radial thickness of the entire rim.

In one embodiment, the projections include a laterally inwardly facing surface, a laterally outwardly facing surface, and a radially outwardly facing surface. In this embodiment, the cover engages at least a portion of each of the laterally inwardly facing surface, the laterally outwardly facing surface, and the radially outwardly facing surface. Preferably, each annular projection has a smoothly radiused radially outwardly facing surface, and each laterally outwardly facing surface that lies in a radial plane substantially parallel to the central plane.

This disclosure concerns wheels for industrial vehicles, including scissor lift vehicles and aerial platform vehicles. More particularly, this disclosure concerns a wheel fabricated with a substantially cylindrical wheel rim and a front face surface which includes a center hub section that is inwardly offset from the front edge by an amount and at an angle providing flexibility to recover from incidences that can damage the wheel.

A bicycle wheel including a hub and a rim coupled to the hub. The wheel also includes a cover that is coupled to rim and that defines a bead seat engageable by a tire. The rim can have a first annular feature and the cover can have a second annular feature that is complementary to the first annular feature to attach the cover to the rim.

A bicycle wheel including a hub and a rim coupled to the hub. The wheel also includes a cover that is coupled to rim and that defines a bead seat engageable by a tire. The rim can have a first annular feature and the cover can have a second annular feature that is complementary to the first annular feature to attach the cover to the rim.

A connection stabilizing mechanism between a solid tire and a bicycle rim. The connection stabilizing mechanism includes multiple fastening members connecting a solid tire with a bicycle rim. Each of the fastening members has a plate-shaped base section engaged with the bicycle rim and an extension section inserted into the solid tire. A free end of the extension section is inserted into the solid tire. A ratio of an extension length of the extension sect ion to a tire height of the solid tire is between 1:1.5 and 1:2.6, thereby maintaining a relative position of the center of a main body of the solid tire relative to the rim. Thus, the solid tire is prevented from being detached from the rim due to excessive lateral movement of the central position of the main body of the solid tire.

A rim for a bicycle wheel that includes a tire, hub and spokes. The bicycle rim generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion, a first sidewall and a second sidewall spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid. The rim when attached to the tire forms a side profile and a transverse cross section that positions a center of pressure of the rim.

Disclosed is a wheel assembly including a wheel portion, and optionally, a hub portion transmitting driving force transmitted through a drive shaft to the wheel portion. The wheel portion further includes a wheel flange portion connected to the hub portion, and the wheel flange portion includes a foreign matter discharge portion having a first discharge surface and a second discharge surface indented in different directions on an inner side surface.