Patent Publication Number: US-6038798-A

Title: Internal rotary structure of a crystal ball seat

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the invention 
     The present invention relates to an internal rotary structure of a crystal ball seat, and particularly, to a crystal ball seat having an internal rotary disk which is quite small. 
     2. Description of the Prior Art 
     A music bell decoration, and especially, the inner part of the seat of which is installed with a rotary disk or a rotary cylinder, for example, as in U.S. Pat. No. 5,555,656, is discussed. As shown in said Patent Application, a gear is installed on the edge portion of the transversal rolling wheel of the music bell so that the cylinder within a substrate may be driven by said gear, and the user may observe the rotation of the cylinder with decoration from the outside of the substrate. 
     However, in order that the transversal gear may be engaged with the circular teeth on the inner teeth of the cylinder in a correct position, therefore, the roller axis of said music bell needs to be located on the diameter position of the rotary cylinder, as shown in the FIG. 4 of said Patent Application. By the confinement of said music bell, the whole music bell is on one side of the cylinder, thus the inner diameter must be enlarged so that the music bell may be contained therewithin. 
     The container of the aforementioned cylinder must be enlarged due to the installation of the music bell, Therefore, the seat of the crystal ball must also be enlarged, so that, for a smaller size music bell decoration, said structure of the Patent Application must not be employed. 
     SUMMARY OF THE INVENTION 
     Accordingly, the present invention provides an internal rotary structure of a crystal ball seat, the main components of which are a base plate, a rotary disk, gears and other components, wherein a music bell is fixed on the platen of the base plate, and a rotary disk is installed on the rim portion of said platen of the base plate. Further, a driving gear with longitudinal axis is installed between the driving gear of the music bell rolling wheel and the circular teeth on the inner rim of the rotary disk. 
     By said structure, since said driving gear has a longitudinal type, therefore, even the music bell is installed on the central position of the platen of the base plate. Said driving gear is also driven to rotate by a driven rotary disk which is operable in the horizontal direction. 
     Since the music bell of the present invention may be installed on the central position of the base plate platen, therefore, said rotary disk may be used as the power source of the music bell for driving said music bell to rotate. Accordingly, the structure of the present invention is fitted to be employed in the decoration of a music bell with a small size. 
     The present invention will be better understood and its numerous objects and advantages will become apparent to those skilled in the art by reference to the following drawings in which: 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a schematic perspective view of the present invention. 
     FIG. 2 is an elevational view of FIG. 1. 
     FIG. 3 is a front cross sectional view of FIG. 1. 
     FIG. 4 is a front cross sectional view of a modified embodiment in the present invention. 
     FIG. 5 is an elevational view of FIG. 4. 
     
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Numbers of Components:                                                    
 1       base plate    11       platen                                    
12          slot                                                          
 2           rotary disk                                                  
                             21     circular teeth                        
22          decoration                                                    
 3           music bell                                                   
                              31                                          
                                    rotary disk                           
32          driving gear                                                  
                            33      notch                                 
34          winding axis                                                  
 4           driving gear                                                 
                            41      crown teeth                           
42          positive gear                                                 
 5             linkage gear                                               
 6          seat                                                          
 7             external rotary                                            
         disk                                                             
 8          central gear                                                  
 9          sub-gear                                                      
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     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The detail description of rotary structure of the present invention is shown in FIGS. 1, 2 and 3. The present invention includes a base plate (1), a rotary disk (2), gears and other components; wherein a circular platen (11) is formed on the center of the upper surface of the base plate (1) and a music bell (3) is fixed on the center of the platen(11). 
     A projected positioning plate (15) is installed on the rim of the music bell seat (30) with respect to the platen (11). The positioning plate (15) allows the music bell (3) may be assembled quickly in the predetermined position of the platen (11). 
     The music bell (3) is a conventional product and the power source thereof is a conventional winding and a notch (33) is formed on the music bell seat (30) below the transversal rolling wheel (31) of the music bell. 
     A slot (12) aligned with the base plate (1) is formed on the base plate platen (11) with respect to the notch (33) of the music bell. 
     Further, a rotary disk (2) is installed on the periphery of the platen (11) of the base plate (1) so that the rotary disk (2) may be rotated around the platen (11), and the height of the rotary disk (2) will not exceed the height of the platen (11) and circular teeth (21) are formed on the inner rim of the rotary disk (2). 
     In this embodiment, a cylindrical decoration with proper height is fixed on the disk surface of said rotary disk (2) and as a rule, the inner rim of the decoration will not contact the components of the music bell (3). 
     Further, a driving gear (4) of longitudinal axis is installed below the driving gear (32) of the music bell rolling wheel (31), the driving gear (4) is rotated around the axial hole (13) of the base plate slot (12) . 
     Crown teeth (41) orthogonal to the driving gear (32) of the music bell rolling wheel (31) are formed on the upper end of the driving gear (4). 
     The crown teeth (41) of the driving gear (4) pass through the notch (33) of the music bell seat (30) and then engage the driving gear (32), so that, the power of the music bell (3) will cause the driving gear (4) to be rotated through said driving gear (32). 
     Moreover, a linkage gear (5) the rotary center of which is axial hole (14) is installed between the positive gear (42) of the driving gear (4) and the periphery circular teeth (21), then said driving gear (4) will drive rotary disk (2) through the linkage gear (5) to rotate synchronously. 
     Said driving gear (4) and the linkage gear (5) are all located in the base plate slot (12), and the height of the linkage gear (5) will not be greater than the height of the platen (11). 
     Since said rotary disk (2) will be driven to rotate, the dynamic phenomenon from the rotating of the decoration (22) installed on the rotary disk (2) may be observed from the outside of the crystal ball seat (A) through an opening. 
     The power of the music bell (3) within the crystal ball is derived by rotating the spanner (35) under the base plate (1) by operator so that the winding (34) is driven to rotate. In order to further extend the application of said structure, another modified embodiment is shown in FIGS. 4 and 5. 
     Said spanner (35) on said winding (34) is replaced by a main gear (36). 
     A seat (6) is installed under the base plate (1), and a plurality of upright pillars (62) are installed about the periphery of said seat (6). 
     By said longitudinal pillars (62), the seat (6) may be fixed to the base plate (1) with a gap defined therebetween. 
     Further, an annular external rotary disk (7) is installed within the gap between the seat (6) and the base plate (1). The outer radius of the external rotary disk (7) is larger than that of the crystal ball substrate (A), and teeth (71) are formed on the periphery of the inner radius thereof. 
     Further, a central gear (8) is on the center of the seat, and said central gear (8) is divided into an upper gear (81) and a lower gear (82), wherein said upper gear (81) is engaged with the main gear (36) of said winding axis (34). 
     Furthermore, a plurality of sub-gears (9) are installed between the lower gear (82) of the central gear (8) and the circular teeth (71) of the external rotary disk (7). As the external disk (7) is rotated by the force applied by an operator on the preset direction, then by the linkage of the teeth (71) of the external disk (7) with the sub-gears (9) and the central gear (8), the main gear (36) may be driven to rotate synchronously, and the winding axis (34) will rotate so that the music bell (3) will derive power. 
     If enough power is inputted to said music bell (3) and the force is stopped by the operator, then during the process that the power is released by music bell (3), the winding axis will rotate inversely, and the power will be transferred through the main gear (36), the central gear (8) and the sub-gears (9) so that said external rotary disk (7) will be driven to rotate to present another dynamic phenomenon. 
     According to said structure, the rotating orientation of the external rotary disk (7) is inverse to that of said rotary disk (2). 
     In order to simplify said structure, the pillars (62) of the seat (6) may be rotational axes of said sub-gear. 
     Although certain preferred embodiments of the present invention have been shown and described in detail, it should be understood that various changes and modifications may be made therein without departing from the scope of the appended claims.