Coaster and swivel assembly therefor
OwnerEdward Daraskoinventor
Life of this patent
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OwnerEdward Daraskoinventor
Estimating the term…
The coaster includes a wheeled foot platform, the steerable wheel of which is rotatable on a swiveled axle for effecting a steering action. The swiveled axle extends through aligned horizontal slots in vertical axle guides where are spherically curved. Each axle guide has at least one axially extending flange on which rides a bearing element or roller assembled on the axle. The roller and another bearing element assembled on the axle have complementary curved surfaces in sliding bearing engagement with opposite curved sides of each guide for axially constrained swiveled or turning movement of the axle. Steering of the coaster is obtained by a foot steerable plate mounted for pivotal movement on the foot platform. A mechanical linkage is connected at one end by a sliding pivot to the plate and at its other end to one or both ends of the swiveled axle.
A coaster comprising a foot platform, front and rear platform supporting wheels mounted on said platform for rotation about their respective rotational axes, one of said wheels further being mounted on said platform for pivotal steering movement, a foot steerable member supported on said platform for pivotal movement about a vertical axis, and linkage means connected to said foot steerable member and connected to said one of said wheels for effecting pivotal steering movement of said one of said wheels in response to pivoting of said foot steerable member.
A mounting assembly for the turning wheel of a coaster comprising an axle on which said wheel is rotatably mounted, spaced apart curved axle guides in the coaster having aligned substantially horizontal slots, said axle extending through said slots and being restrained by said axle guides for limited movement in the plane of such slots, and bearing means on said axle having complementary curved surfaces in bearing engagement with the curved axle guides for restraining said axle against axial movement while permitting turning movement of the axle in said slots.
A mechanism for effecting controlled limited pivotal action of a member rotatably mounted on an axle comprising a support for said axle, means for pivotally mounting said axle on said support, a control member pivotally mounted on said support, and V-shape linkage means slidingly pivotally connected at its apex end to said control member by means of a pin rotatable and longitudinally slidable in a slot and at its legs respectively to opposite ends of said axle for effecting pivotal movement of said axle in response to pivoting of said control member.
A mechanism for effecting controlled limited pivotal action of a member rotatably mounted on an axle comprising a support for said axle, means for pivotally mounting said axle on said support, a control member pivotally mounted on said support, V-shape linkage means connected at its apex end to said control member and at its legs respectively to opposite ends of said axle for effecting pivotal movement of said axle in response to pivoting of said control member, said support including spaced-apart curved axle guides having aligned slots, said axle extending through said slots and being restrained by said axle guides for limited movement in the plane of such slots, and inner and outer bearing means on said axle having complementary curved surfaces in bearing engagement with opposite curved sides of said axle guides for restraining said axle against axial movement while permitting swiveled movement thereof in said slots.
A mounting assembly for an axle having a member rotatably mounted thereon such as the turning wheel of a coaster, comprising a support for said axle, said support including spaced-apart curved axle guides having aligned slots, said axle extending through said slots and being restrained by said axle guides for limited movement in the plane of such slots, and bearing means on said axle having curved surfaces complemental to and in bearing engagement with curved surfaces on the curved axle guides for restraining said axle against movement while permitting swivel movement of said axle in said slots.
Dependencies are inferred from the claim text.