초록 ▼

A tilting rotational recreational device which has a platform on which the user stands, which platform is freely rotatable upon a bearing. The angle of the platform with respect to the horizontal may be adjusted so that a user standing or sitting on the platform may induce rotational movement of the

A tilting rotational recreational device which has a platform on which the user stands, which platform is freely rotatable upon a bearing. The angle of the platform with respect to the horizontal may be adjusted so that a user standing or sitting on the platform may induce rotational movement of the platform easily by shifting his or her center of mass. One or more additional bearings placed internally in the device optionally provide random and unpredictable rotational movements of the platform, depending on the nature of the user\s shift of mass. The device may be locked into a particular angle adjustment, and all internal parts may be held securely together to facilitate safe and reliable use.

대표청구항 ▼

A tilting rotational recreational device comprising: (1) a base member adapted to be placed upon a support surface; and (2) a rotatable platform member adapted to support a person using the device; said base member having (a) a base plate in contact with said support surface, (b) at least one weight

A tilting rotational recreational device comprising: (1) a base member adapted to be placed upon a support surface; and (2) a rotatable platform member adapted to support a person using the device; said base member having (a) a base plate in contact with said support surface, (b) at least one weight supporting bearing means mounted therein, (c) a means for establishing an angular displacement between the plane of said support surface and the plane of rotation of said platform member, and (d) a releasable locking means for fixing said angular displacement in a selected angular alignment, said releasable locking means further comprising an axial fastener; said means for establishing said angular displacement having upper and lower wedge shaped elements vertically interengaged and releasably held together in axial alignment by said fastener to permit rotation of said elements relative to one another about an axis of rotation common to both wedge shaped elements, whereby said angular displacement may be adjustably set, said fastener running through bores in said upper and lower wedge shaped elements such that said fastener is coaxial with said axis of rotation common to said upper and lower wedge shaped elements; and wherein said platform member is mounted upon one weight supporting bearing means and said bearing means is mounted upon said means for establishing said angular displacement, said platform member thereby being capable of freely rotating relative to said base member, upon said bearing means.