Interactive motion apparatus

Abstract

An interactive apparatus has a base and a motion unit. The base has a first curved surface with a concave facing. The motion unit is located on the first curved surface and has a second curved surface with a convex facing contacting the first curved surface. In addition, the second curved surface has a curvature greater than that of the first curved surface. As the motion unit is steady on the first curved surface, a gravity center of the motion unit is located below a curvature center of the second curved surface.

1 . An interactive apparatus comprising:
 a base, having a first curved surface with a concave facing; and   a motion unit, located on the first curved surface, having a second curved surface with a convex facing contacting the first curved surface, the second curved surface having a curvature greater than that of the first curved surface, and, as the motion unit becoming steady on the first curved surface, a gravity center of the motion unit located below a curvature center of the second curved surface.   
   
   
       2 . The interactive apparatus of  claim 1 , further comprising at least an actuating device on the base for rolling the motion unit when sensing a preset signal. 
   
   
       3 . The interactive apparatus of  claim 2 , wherein the actuating device is a coil. 
   
   
       4 . The interactive apparatus of  claim 2 , wherein the number of the actuating device is four and the actuating devices are located around the motion unit with identical intervals. 
   
   
       5 . The interactive apparatus of  claim 1 , further comprising a liquid injected in the first curved surface 
   
   
       6 . The interactive apparatus of  claim 1 , wherein the first curved surface is a spherical surface. 
   
   
       7 . The interactive apparatus of  claim 1 , wherein the second curved surface is a spherical surface. 
   
   
       8 . The interactive apparatus of  claim 2 , wherein a preset distance between the actuating device and a lowest point of the first curved surface defines a rolling range of the motion unit. 
   
   
       9 . The interactive apparatus of  claim 1 , further comprising:
 a conductive plate on the second curved surface;   two electrodes on the first curved surface, when the motion unit rolling to a preset location, the conductive plate electrically connecting the two electrodes; and   a reacting unit, connected to the two electrodes, when the two electrodes electrically connected by the conductive plate, the reacting unit presenting a preset action.   
   
   
       10 . The interactive apparatus of  claim 9 , wherein the two electrodes are two circular electrodes. 
   
   
       11 . The interactive apparatus of  claim 10 , wherein the two circular electrodes are centered at a lowest point of the first curved surface. 
   
   
       12 . A motion structure of robot pets, comprising:
 a base, having a first curved surface with a concave facing; and   a motion unit, located on the first curved surface, having a second curved surface with a convex facing contacting the first curved surface, the second curved surface having a curvature greater than that of the first curved surface, when the motion unit becoming steady on the first curved surface, a gravity center of the motion unit located below a curvature center of the second curved surface;   a frame, fixed on the motion unit and waved with the rolling of the motion unit; and   a covering layer, covering the frame to show an exterior of the motion structure.   
   
   
       13 . The motion structure of  claim 12 , further comprising at least an actuating device, formed on the base for rolling the motion unit when sensing a preset signal. 
   
   
       14 . The motion structure of  claim 13 , wherein the actuating device is a coil. 
   
   
       15 . The motion structure of  claim 13 , wherein a number of said at least an actuating device is four and the actuating devices are located by the motion unit with identical intervals. 
   
   
       16 . The motion structure of  claim 12 , further comprising a liquid injected in the first curved surface. 
   
   
       17 . The motion structure of  claim 12 , wherein the first curved surface is a spherical surface. 
   
   
       18 . The motion structure of  claim 12 , wherein the second curved surface is a spherical surface. 
   
   
       19 . The motion structure of  claim 12 , wherein a preset distance between the actuating device and a lowest point of the first curved surface defines a rolling range of the ears or the tails. 
   
   
       20 . The motion structure of  claim 12 , further comprising:
 a conductive plate, located on the first curved surface;   two electrodes, formed on the second curved surface, and, as the motion unit rolling to a preset location, the conductive plate electrically connecting the two electrodes; and   a reacting unit, connected to the two electrodes, and as the two electrodes electrically connected by the conductive plate, the reacting unit presenting a preset action.   
   
   
       21 . The motion structure of  claim 20 , wherein the two electrodes are two circular electrodes. 
   
   
       22 . The motion structure of  claim 21 , wherein the two circular electrodes are centered at a lowest point of the first curved surface.