A rolling toy to be rolled on a horizontal support surface, for instance, on a floor, having a primary roller and a secondary roller. The primary roller having a tubular-like member extending along a longitudinal axis and at least one annular flange fixedly attached to the tubular-like member and ex
A rolling toy to be rolled on a horizontal support surface, for instance, on a floor, having a primary roller and a secondary roller. The primary roller having a tubular-like member extending along a longitudinal axis and at least one annular flange fixedly attached to the tubular-like member and extending outwardly therefrom. The secondary roller is adapted a for rolling motion upon an interior surface of the tubular-like member when the primary roller rotates about the longitudinal axis due to the rolling motion of the rolling toy on the horizontal support surface. At least one of the following includes a helical guiding means: (i) the tubular-like member and (ii) the secondary roller. Thereby, when the secondary roller is disposed on the interior surface of the tubular-like member and the primary roller is set in a rolling motion on the horizontal support surface in a predetermined direction, the rolling motion of the primary roller results in a tilting of the latter. The tilting of the primary roller may result in its standing vertically on the horizontal support surface.
대표청구항▼
1. A rolling toy comprising: a primary roller and a secondary roller;said primary roller has a tubular member extending along a longitudinal axis thereof between a left end and a right end;said primary roller further has at least one rolling body fixedly attached to said tubular member and is coaxia
1. A rolling toy comprising: a primary roller and a secondary roller;said primary roller has a tubular member extending along a longitudinal axis thereof between a left end and a right end;said primary roller further has at least one rolling body fixedly attached to said tubular member and is coaxial thereto;said at least one rolling body is configured such that said primary roller is rollable on the at least one rolling body on a horizontal support surface;said tubular member has a substantially cylindrical interior surface facing an interior thereof;said secondary roller is sized to fit within said tubular member and is adapted for a rolling motion on said substantially cylindrical interior surface;wherein at least one of the following includes a helical guiding means: (i) said tubular member and (ii) said secondary roller;said helical guiding means includes at least one complete revolution of the helix thereof and is configured for urging said secondary roller to move longitudinally toward said left end or said right end when said secondary roller is in the rolling motion on said substantially cylindrical interior surface;a configuration of the primary roller and weights of the primary and secondary rollers are such that,when said primary roller is positioned on said horizontal support surface having said longitudinal axis oriented horizontally, at least one of the following is satisfied:(a) when said secondary roller is disposed on said substantially cylindrical interior surface in a position closest to said left end of said tubular member, a center of gravity of said rolling toy is located to the left of a vertical plane, perpendicular to said longitudinal axis, and crossing a leftmost point of contact of said at least one rolling body with said horizontal support surface,(b) when said secondary roller is disposed on said substantially cylindrical interior surface in a position closest to said right end of said tubular member, a center of gravity of said rolling toy is located to the right of a vertical plane, perpendicular to said longitudinal axis, and crossing a rightmost point of contact of said at least one rolling body with said horizontal support surface;thereby, when said secondary roller is disposed on said substantially cylindrical interior surface in a predetermined location and said primary roller is set in a rolling motion on said horizontal support surface in a predetermined direction, the rolling motion of the primary roller results in a tilting thereof in respect to said horizontal support surface due to one of the following: (i) the longitudinal movement of said secondary roller toward said left end, (ii) the longitudinal movement of said secondary roller toward said right end. 2. The rolling toy of claim 1, wherein said at least one rolling body comprises a first rolling body. 3. The rolling toy of claim 2, wherein a center of gravity of said primary roller is located approximately at a location of a vertical plane, substantially perpendicular to the longitudinal axis, and associated with said first rolling body. 4. The rolling toy of claim 1, wherein said at least one rolling body comprises a left rolling body and a right rolling body spaced apart along said longitudinal axis and having an equal outer diameter. 5. The rolling toy of claim 1, wherein said secondary roller is configured as an elongated body extending along a longitudinal axis and having a helical ridge extending outwardly from an exterior thereof, wherein the helical ridge has at least one complete revolution around the longitudinal axis, thereby the helical ridge constitutes said helical guiding means. 6. The rolling toy of claim 1, wherein said secondary roller is configured as a helical spring having at least one complete revolution, thereby the helical spring constitutes said helical guiding means. 7. The rolling toy of claim 1, wherein a plurality of circular ridges spaced apart along said longitudinal axis extend inwardly from said substantially cylindrical interior surface. 8. The rolling toy of claim 1, wherein said tubular member has a helical ridge extending inwardly from said substantially cylindrical interior surface and having at least one complete revolution around said longitudinal axis of said tubular member, thereby the helical ridge constitutes said helical guiding means; said secondary roller is configured for a rolling engagement with the helical ridge. 9. The rolling toy of claim 1, wherein said tubular member is formed substantially as a helical spring having at least one complete revolution, thereby the helical spring constitutes said helical guiding means; said secondary roller is configured for a rolling engagement with the helical spring. 10. The rolling toy of claim 1, wherein said secondary roller has a rotation-symmetrical shape. 11. The rolling toy of claim 1, wherein said secondary roller is configured as an elongated body extending along a longitudinal axis and having at least one circular ridge extending outwardly from an exterior of the elongated body and coaxial with the longitudinal axis. 12. A rolling toy comprising: a primary roller and a secondary roller;said primary roller has a tubular member extending along a longitudinal axis thereof between a left end and a right end;said primary roller further has at least one rolling body which is fixedly attached to said tubular member and is coaxial thereto;said at least one rolling body is configured such that said primary roller is rollable on the at least one rolling body on a horizontal support surface;said tubular member has a substantially cylindrical interior surface facing an interior thereof;said secondary roller is sized to fit within said tubular member and is adapted for a rolling motion on said substantially cylindrical interior surface;wherein at least one of the following includes a helical guiding means: (i) said tubular member and (ii) said secondary roller;said helical guiding means has at least one complete revolution of the helix thereof and is configured for urging said secondary roller to move longitudinally toward said left end or said right end when said secondary roller is in the rolling motion on said substantially cylindrical interior surface;an outer diameter of said at least one rolling body is at least twenty-five percent larger than a diameter of an imaginary cylinder associated with said substantially cylindrical interior surface;a configuration of the primary roller and weights of the primary and secondary rollers are such that, as said primary roller is positioned on said horizontal support surface having said longitudinal axis oriented horizontally, at least one of the following is satisfied:(a) when said secondary roller is disposed on said substantially cylindrical interior surface in a position closest to said left end of said tubular member, a center of gravity of said rolling toy is located to the left of a vertical plane, perpendicular to said longitudinal axis, and crossing a leftmost point of contact of said at least one rolling body with said horizontal support surface, or(b) when said secondary roller is disposed on said substantially cylindrical interior surface in a position closest to said right end of said tubular member, a center of gravity of said rolling toy is located to the right of a vertical plane, perpendicular to said longitudinal axis, and crossing a rightmost point of contact of said at least one rolling body with said horizontal support surface;thereby, when said secondary roller is disposed on said substantially cylindrical interior surface in a predetermined location and said primary roller is set in a rolling motion on said horizontal support surface in a predetermined direction, the rolling motion of the primary roller results in a tilting thereof in respect to said horizontal support surface due to one of the following: (i) the longitudinal movement of said secondary roller toward said left end, (ii) the longitudinal movement of said secondary roller toward said right end. 13. The rolling toy of claim 12, wherein said at least one rolling body comprises a first rolling body. 14. The rolling toy of claim 13, wherein a center of gravity of said primary roller is located approximately at a location of a vertical plane, substantially perpendicular to the longitudinal axis, and associated with said first rolling body. 15. The rolling toy of claim 12, wherein said at least one rolling body comprises a left rolling body and a right rolling body spaced apart along said longitudinal axis and having an equal outer diameter. 16. The rolling toy of claim 12, wherein said secondary roller is configured as an elongated body extending along a longitudinal axis and having a helical ridge extending outwardly from an exterior thereof, wherein the helical ridge has at least one complete revolution around the longitudinal axis thereby the helical ridge constitutes said helical guiding means. 17. The rolling toy of claim 12, wherein a plurality of circular ridges spaced apart along said longitudinal axis extend inwardly from said substantially cylindrical interior surface. 18. The rolling toy of claim 12, wherein said tubular member has a helical ridge extending inwardly from said substantially cylindrical interior surface and having at least one complete revolution around said longitudinal axis of said tubular member, thereby the helical ridge constitutes said helical guiding means; said secondary roller is configured for a rolling engagement with the helical ridge. 19. The rolling toy of claim 12, wherein said secondary roller has a rotation-symmetrical shape. 20. A rolling toy comprising: a primary roller and a secondary roller;said primary roller has a tubular member extending along a longitudinal axis thereof between a left end and a right end;said primary roller further has at least one rolling body fixedly attached to said tubular member and is coaxial thereto;said at least one rolling body is configured such that said primary roller is rollable on the at least one rolling body on a horizontal support surface;said tubular member has a substantially cylindrical interior surface facing an interior thereof;said secondary roller is sized to fit within said tubular member and is adapted for a rolling motion on said substantially cylindrical interior surface;wherein at least one of the following includes a helical guiding means: (i) said tubular member and (ii) said secondary roller;said helical guiding means has at least one complete revolution of the helix thereof and is configured for urging said secondary roller to move longitudinally toward said left end or said right end when said secondary roller is in the rolling motion on said substantially cylindrical interior surface;a configuration of the primary roller and weights of the primary and secondary rollers are such that, as the primary roller is positioned on said horizontal support surface, at least one of the following is satisfied:(a) said primary roller is urged to tilt to the left when said secondary roller is positioned on said substantially cylindrical interior surface in a position closest to said left end of said tubular member,(b) said primary roller is urged to tilt to the right when said secondary roller is positioned on said substantially cylindrical interior surface in a position closest to said right end of said tubular member,thereby, when said secondary roller is disposed on said substantially cylindrical interior surface in a predetermined location and said primary roller is set in a rolling motion on said horizontal support surface in a predetermined direction, the rolling motion of the primary roller results in a tilting thereof in respect to said horizontal support surface due to one of the following: (i) the longitudinal movement of said secondary roller toward said left end, (ii) the longitudinal movement of said secondary roller toward said right end.
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