A prefabricated tuned top and a launcher for launching the tuned top, manufactured in a small size with five components of a knob, a rim, beads, a body and a spinning spindle. The tuned top can be readily assembled by sequentially inserting and then tightening the components. The tuned top implements a changeable spinning form based on induction of a change in difference between the centripetal force and centrifugal force, generated during spinning, since the center of gravity can be eccentrically disposed freely according to the user's selection. The tuned top is prevented from being reversely loosened so it can be safely, semi-permanently, and easily enjoyable at any location. The tuned top enables accurate and stable mounting when a launcher is used, such that the top is not easily separated therefrom but is quickly launched without a launch failure, thereby providing accurate launching without the loss of spinning power.

A prefabricated tuned top and a launcher for launching the tuned top, manufactured in a small size with five components of a knob, a rim, beads, a body and a spinning spindle. The tuned top can be readily assembled by sequentially inserting and then tightening the components. The tuned top implements a changeable spinning form based on induction of a change in difference between the centripetal force and centrifugal force, generated during spinning, since the center of gravity can be eccentrically disposed freely according to the user's selection. The tuned top is prevented from being reversely loosened so it can be safely, semi-permanently, and easily enjoyable at any location. The tuned top enables accurate and stable mounting when a launcher is used, such that the top is not easily separated therefrom but is quickly launched without a launch failure, thereby providing accurate launching without the loss of spinning power.

A prefabricated tuned top and a launcher for launching the tuned top, manufactured in a small size with five components of a knob, a rim, beads, a body and a spinning spindle. The tuned top can be readily assembled by sequentially inserting and then tightening the components. The tuned top implements a changeable spinning form based on induction of a change in difference between the centripetal force and centrifugal force, generated during spinning, since the center of gravity can be eccentrically disposed freely according to the user's selection. The tuned top is prevented from being reversely loosened so it can be safely, semi-permanently, and easily enjoyable at any location. The tuned top enables accurate and stable mounting when a launcher is used, such that the top is not easily separated therefrom but is quickly launched without a launch failure, thereby providing accurate launching without the loss of spinning power.

A prefabricated tuned top and a launcher for launching the tuned top, manufactured in a small size with five components of a knob, a rim, beads, a body and a spinning spindle. The tuned top can be readily assembled by sequentially inserting and then tightening the components. The tuned top implements a changeable spinning form based on induction of a change in difference between the centripetal force and centrifugal force, generated during spinning, since the center of gravity can be eccentrically disposed freely according to the user's selection. The tuned top is prevented from being reversely loosened so it can be safely, semi-permanently, and easily enjoyable at any location. The tuned top enables accurate and stable mounting when a launcher is used, such that the top is not easily separated therefrom but is quickly launched without a launch failure, thereby providing accurate launching without the loss of spinning power.

The present invention comprises two or more rotatable three-dimensional bodies and a linkage between the bodies. By means of the linkage, the rotation of a first body causes a second body to rotate. In at least one of the rotational positions of the two or more bodies, the shapes of the bodies are designed to create a shaped cavity between a first body and a second body. The shaped cavity may be a tunnel, or the shaped cavity may be a recess or niche. As the at least two bodies are rotated, the shaped cavity may appear or disappear or may change shape, position, or orientation as the bodies are rotated.

The present invention comprises two or more rotatable three-dimensional bodies and a linkage between the bodies. By means of the linkage, the rotation of a first body causes a second body to rotate. In at least one of the rotational positions of the two or more bodies, the shapes of the bodies are designed to create a shaped cavity between a first body and a second body. The shaped cavity may be a tunnel, or the shaped cavity may be a recess or niche. As the at least two bodies are rotated, the shaped cavity may appear or disappear or may change shape, position, or orientation as the bodies are rotated.

A spinning top launching device includes a casing; an operation member; a driving wheel being configured to be rotated around a shaft thereof as a center by operating the operation member; a holder being configured outside the casing to hold releasably a spinning top; a power transmission mechanism including a power transmission element, being connected with both the driving wheel and the holder, and being configured to transmit a rotation of the driving wheel to the holder; and a rotation direction switching member being configured to switch a rotation direction of the holder between a first direction and a second direction being opposite to the first direction by moving the power transmission element between a first revolution position and a second revolution position.

A spinning top launching device includes a casing; an operation member; a driving wheel being configured to be rotated around a shaft thereof as a center by operating the operation member; a holder being configured outside the casing to hold releasably a spinning top; a power transmission mechanism including a power transmission element, being connected with both the driving wheel and the holder, and being configured to transmit a rotation of the driving wheel to the holder; and a rotation direction switching member being configured to switch a rotation direction of the holder between a first direction and a second direction being opposite to the first direction by moving the power transmission element between a first revolution position and a second revolution position.

The present invention comprises two or more rotatable three-dimensional bodies and a linkage between the bodies. By means of the linkage, the rotation of a first body causes a second body to rotate. In at least one of the rotational positions of the two or more bodies, the shapes of the bodies are designed to create a shaped cavity between a first body and a second body. The shaped cavity may be a tunnel, or the shaped cavity may be a recess or niche. As the at least two bodies are rotated, the shaped cavity may appear or disappear or may change shape, position, or orientation as the bodies are rotated.

The present invention comprises two or more rotatable three-dimensional bodies and a linkage between the bodies. By means of the linkage, the rotation of a first body causes a second body to rotate. In at least one of the rotational positions of the two or more bodies, the shapes of the bodies are designed to create a shaped cavity between a first body and a second body. The shaped cavity may be a tunnel, or the shaped cavity may be a recess or niche. As the at least two bodies are rotated, the shaped cavity may appear or disappear or may change shape, position, or orientation as the bodies are rotated.