Abstract: A three-layer soft rubber shock absorbing wheel including a hub. An outer surface of the hub is bonded with a hard body, a first layer of tread and a second layer of tread having a hardness lower than that of the first layer of tread. The hard body, the first layer of tread, and the second layer of tread are arranged from inside to outside in sequence. The second layer of tread is bonded in a concave surface portion on an outer surface of the first layer of tread. The first layer of tread and the second layer of tread are both elastic bodies. The hard body is configured to have an I-shaped structure body. The three-layer soft rubber shock absorbing wheel is a wheel body made by bonding three layers of materials with different hardness.

Abstract: A mold having an upper, medial, and lower bodies with a composite peripheral wall define an inside cavity which may have a complex shape as for instance, with circular protrusions, circular depressions, and axially aligned cylinders. Pour holes are provided for introducing a molding compound into the mold while allowing air to exit the cavity. The medial body may be made of multiple portions. The upper body may be axially lifted off the medial body and the medial body may be laterally moved away from the molded object which enables removal of the complex molded part.

Abstract: A child's riding toy is provided having a vehicle body, at least one rotatable tire, and traction band. The at least one rotatable tire is configured to support at least a portion of the vehicle body and move the vehicle body from one location to another. The rotatable tire comprises a circumferentially-extending tread section, a sidewall, and a circumferentially-extending shoulder connecting to both the tread section and sidewall. The circumferentially-extending tread section comprises a tread surface configured to engage a ground surface while supporting at least the portion of the vehicle body. The tread section includes a channel equatorially located and circumferentially-extending. The traction band is sized to fit within the channel and have a top surface located about flush with the tread surface such that as the tread surface engages the ground surface so too does the band's top surface. Wherein both the traction band and tire tread simultaneously engage the ground to move the ride-on toy.

Abstract: A high performance resilient skate wheel (100) including a solid core tire (102) and a hub (104) defining a bearing axis. The solid core tire (102) includes an inner ring (106) and an outer tire material (108) disposed about the inner ring and forming a rolling surface of the wheel. The outer tire material (108) is harder than the inner ring (106). The inner ring (106) has a stepped profile in cross section, defining a middle portion disposed axially between lateral portions of the inner ring, with the middle portion having a greater outer diameter than the lateral portions. Making the solid core skate wheel (100) includes providing a hub assembly having an inner ring (106) with a stepped profile in cross section disposed about a wheel hub (104), and over molding the inner ring with a tire material (108) forming a rolling surface of the wheel.

Abstract: Both a “grip” run and a drift run of a remote control car are achieved by fitting rings to an outer peripheral surface of a tire or tires. In a drift tire, at least one annular groove is formed on an outer surface of an annular body of a tire main body in a circumferential direction, at least one ring made of a different material and/or shape from that of the annular body is fitted to the annular groove, and the ring is level with or protrudes from the outer surface of the annular body.

Abstract: A wheel for a child's toy formed from a first and second section. The first section is made from a material having a Shore A durometer of 100 or less. The second section is disposed within the first section. The second section is made from a rigid material and provides structural support for the wheel.

Abstract: A multi-element skateboard wheel having at least two different hardness surfaces including a softer center exterior surface and a harder side exterior surface. The softer center surface is the principal weight supporting surface which, because of its lower durometer material provides a quieter and smoother ride and better traction than conventional skateboard wheels. The harder side surface, which in the preferred embodiment is positioned on each side of the wheel, comprises a higher durometer material which exhibits less frictional resistance to sliding engagement with vertical surfaces such as curbs and with high inclines and the like. Moreover, in the preferred embodiment, the harder side surfaces extend around to the radial surface of the wheel at the precise same radial height as the softer center surface.

Abstract: A wheel which comprises a hub having an axle receiving aperture, a first portion extending circumferentially about the hub, a second portion extending circumferentially about the first portion, the second portion having a hardness less than the hardness of the first portion, and the second portion forming at least a major percentage of the surface contacting area. The wheel is suitable for use on trolleys and the like wherein it is desirable to have a relatively soft portion when the trolley is stationary to thereby provide stability while, at the same time, providing an easy rolling capability.

Abstract: The present invention is a wheel that may be used with in-line skates, conventional roller skates, skateboards or the like. The wheel of the present invention includes a hub having a tire body circumscribing thereto. This tire body includes a first layer fabricated from a first material that is secured to a second layer fabricated from a second material. Each layer being circumscribing attached to the hub. Thus providing for each layer to be exposed. The first layer or first material is preferably polyurethane having a first durometer, known as a hard durometer polyurethane. The second layer or second material is preferably a polyurethane having a second durometer, different from the first, known as a softer durometer.

Abstract: A multi-element skateboard wheel having at least two different hardness surfaces including a softer center exterior surface and a harder side exterior surface. The softer center surface is the principal weight supporting surface which, because of its lower durometer material provides a quieter and smoother ride and better traction than conventional skateboard wheels. The harder side surface, which in the preferred embodiment is positioned on each side of the wheel, comprises a higher durometer material which exhibits less frictional resistance to sliding engagement with vertical surfaces such as curbs and with high inclines and the like. Moreover, in the preferred embodiment, the harder side surfaces extend around to the radial surface of the wheel at the precise same radial height as the softer center surface.

Abstract: A skate wheel includes an outer polymeric layer, an inner polymeric layer, and an intermediate layer. The inner polymeric layer has a hardness which is less than the hardness of the outer polymeric layer. The inner and outer polymeric layers are preferably comprised of polyurethane. The intermediate layer is made of a hard plastic or metal that extends through the cross-section of the roller wheel, separating the outer and inner layers. The intermediate layer prevents compression of the harder outer polymeric layer onto the softer inner polymeric layer. This provides a smoother ride while maintaining good precision and speed. The skate wheel may also include a decorative illumination device.

Abstract: A roller is structured so that one or a plurality of grooves are recessed on an outer peripheral surface of an outer race in a bearing, a part of a synthetic resin tire integrally adhered to the outer race of the bearing is inserted and welded within a groove on the outer peripheral surface of the outer race in the bearing, whereby a firmer adhesion force can be obtained. Accordingly, a more firmly adhered fitting body is prevented from being peeled off from the outer race of the bearing and the tire and the outer race of the bearing are prevented from separately racing even when the bearing is exposed to a heavy load and rotates at a high speed, that is, the roller is adhered so as to prevent the tire and the bearing from rotating relative to each other.