US 5,474,310 AGranted

In-line skates with enhanced circular flanges on the wheel frame

AssigneeFar Great Plastics Industrial Co., Ltd.

InventorTing-Hsing Chen

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Abstract

A tandem skate which has circular flanges formed on respective sides of each axle aperture to receive each bolt head and each nut therein. The flanges absorb the push off force applied against a riding surface to accelerate the speed of skating, and the restraint force. The flanges also prevent the deforming, and deviation of axle aperture, so as to increase the life of the tandem skate.

Claims1

Dependent claims

A tandem skate wheel assembly, comprising:

a channel shaped wheel frame having a pair of opposing side walls, one of said pair of side walls having a plurality of lug portions formed therein and a respective plurality of first axle apertures formed through said lug portions, the other of said pair of side walls having a plurality of lug portions formed therein and a respective plurality of second axle apertures formed through said lug portions, said plurality of first axle apertures being disposed in respective corresponding relationship with said plurality of second axle apertures, said wheel frame having an integrally formed annular flange surrounding and encircling each said plurality of first and second axle apertures;
a plurality of wheels disposed between said pair of wheel frame side walls, each of said wheels having a through bore disposed in axial alignment with a respective pair of opposing first and second axle apertures of said wheel frame;
a plurality of axle bolts, each of said plurality of axle bolts having a head portion formed on one end, a threaded portion formed on an opposing end thereof and a shaft portion therebetween, each of said axle bolts passing through a respective pair of opposing first and second axle apertures and a respective one of said wheel through bores, said head portion of each of said plurality of axle bolts being disposed in contiguous contact with an inner surface of a respective one of said plurality of annular flanges of a respective side wall for transferring a portion of a loading force thereto;
and,
a plurality of nuts, each of said plurality of nuts being threadedly engaged with a threaded portion of a respective one of said plurality of axle bolts, each said nut being disposed in contiguous contact with an inner surface of a respective one of said plurality of annular flanges of a respective side wall for transferring a portion of said loading force thereto, whereby a loading force applied to each wheel is divided between a respective pair of said opposing first and second axle apertures and said annular flanges surrounding said first and second axle apertures.

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Dependencies are inferred from the claim text.

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Abstract

A tandem skate wheel assembly, comprising:

a channel shaped wheel frame having a pair of opposing side walls, one of said pair of side walls having a plurality of lug portions formed therein and a respective plurality of first axle apertures formed through said lug portions, the other of said pair of side walls having a plurality of lug portions formed therein and a respective plurality of second axle apertures formed through said lug portions, said plurality of first axle apertures being disposed in respective corresponding relationship with said plurality of second axle apertures, said wheel frame having an integrally formed annular flange surrounding and encircling each said plurality of first and second axle apertures;
a plurality of wheels disposed between said pair of wheel frame side walls, each of said wheels having a through bore disposed in axial alignment with a respective pair of opposing first and second axle apertures of said wheel frame;
a plurality of axle bolts, each of said plurality of axle bolts having a head portion formed on one end, a threaded portion formed on an opposing end thereof and a shaft portion therebetween, each of said axle bolts passing through a respective pair of opposing first and second axle apertures and a respective one of said wheel through bores, said head portion of each of said plurality of axle bolts being disposed in contiguous contact with an inner surface of a respective one of said plurality of annular flanges of a respective side wall for transferring a portion of a loading force thereto;
and,
a plurality of nuts, each of said plurality of nuts being threadedly engaged with a threaded portion of a respective one of said plurality of axle bolts, each said nut being disposed in contiguous contact with an inner surface of a respective one of said plurality of annular flanges of a respective side wall for transferring a portion of said loading force thereto, whereby a loading force applied to each wheel is divided between a respective pair of said opposing first and second axle apertures and said annular flanges surrounding said first and second axle apertures.

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