초록 ▼

The present invention is a pre-pressurized in-line skate wheel which is capable of being pressurized at low levels and which further includes an integral bladder device having an annular tube and three bladder rods which are in fluid communication with respect to each other. The wheel is configured

The present invention is a pre-pressurized in-line skate wheel which is capable of being pressurized at low levels and which further includes an integral bladder device having an annular tube and three bladder rods which are in fluid communication with respect to each other. The wheel is configured with a rigid polyurethane hub formed with a drop center and further having a pair of radially extending flanges with three pairs of axial openings. The hub is further formed with three radially projecting spokes. The tire body surrounds the bladder device and is constructed of a generally more resilient polyurethane which bonds to the hub, flanges and bladder. The method of manufacture utilizes blow molding techniques for the bladder device which includes a post vulcanization chlorine bath. The tire body is formed using liquid thermoset polyurethane poured into an open cast mold. The resulting wheel ensures the rider of a long lasting, light weight tire with exceptional shock absorption properties to therefore provide a smooth and comfortable ride.

대표청구항 ▼

[ What is claimed:] [1.] A urethane wheel comprising:a relatively rigid urethane hub formed with a core defining an axle bore and having axially spaced apart radially projecting flanges;an integral bladder device including a tube formed with a tube chamber and disposed concentrically about said core

[ What is claimed:] [1.] A urethane wheel comprising:a relatively rigid urethane hub formed with a core defining an axle bore and having axially spaced apart radially projecting flanges;an integral bladder device including a tube formed with a tube chamber and disposed concentrically about said core and spaced therefrom to form a nesting space, said device further being formed with a plurality of rods in said nesting space spaced equidistant about said drop center and formed with respective rod chambers;fluid in said tube and rod chambers; anda relatively soft molded urethane tire body formed between said flanges and surrounding a portion of said bladder device, bonded to said hub and bladder device and projecting radially outwardly from said bladder and configured with a peripheral tread surface.