External structure of crystal ball driven by an eccentric shaft
OwnerJian H. Liuinventor
Life of this patent
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Abstract
The present invention is directed to an external structure of a crystal ball that has an eccentric shaft and a swinging stick, which is driven by the eccentric shaft. The eccentric shaft is driven by the revolving shaft of the rotary table on the music box. The swinging stick has a longitudinal concave pedestal that is installed on the end of the eccentric shaft, and is driven to swing around the positioning axis by the rotation of the eccentric shaft so that the phenomena of swinging and other motions can be performed by the swinging stick.
Claims13
A drive for an external structure of a crystal ball that includes a base having a side and a bottom and a music box mounted on said base bottom that drives a revolving shaft, the drive comprising:
- an eccentric shaft rotated by said revolving shaft;
- a swinging pedestal comprised of a support member, an upstanding mounting member connected to said support member, and means for pivotally mounting said pedestal to said base, said mounting member having
- a groove located therein in alignment with respect to said eccentric shaft,
- and said swinging pedestal being mounted so that it can swing around a positioning axis;
- and
- a swinging stick extended to the outside of the base and moved by said swinging pedestal.
An ornamental device comprising
- a base;
- a music box mounted on said base and rotationally driving a drive shaft;
- an eccentric shaft having a distal first end defining an end portion and a second end mounted to and rotated by said drive shaft;
- a swinging pedestal comprised of an elongate member having a longitudinally extending groove therein which defines a groove surface;
- means for pivotally mounting said swinging pedestal to said base, said mounting means being located such that said first end portion of said eccentric shaft ie located in said groove and can engage said groove surface;
- and a swinging stick extending outside said base and driven by said swinging pedestal.
Dependencies are inferred from the claim text.