Rotatable carrier for objects or display

Abstract

A rotatable carrier includes a detecting device attached to a casing, a housing rotatably supported on the casing to support such as displays, and a rotating device for rotating the housing relative to the casing, to rotate the displays toward selected or suitable directions. The housing includes an interacting member arranged to act on the detecting device, and to control the rotating device, and to prevent the housing from being over rotated relative to the casing. The housing includes an inner rack, and the casing includes a rotatable gear engaged with the inner rack of the housing, and driven by a motor.

1 . A rotatable carrier comprising: 
 a casing,    a detecting device attached to said casing,    a housing rotatably supported on said casing, to support objects thereon,    means for rotating said housing relative to said casing, to rotate the objects toward selected directions, and    said housing including an interacting member provided thereon and arranged to act on said detecting device, in order to control said rotating means, and to prevent said housing from being over rotated relative to said casing.    
   
   
       2 . The rotatable carrier as claimed in  claim 1 , wherein said rotating means includes an inner rack provided in said housing, and a gear rotatably received in said casing and engaged with said inner rack of said housing.  
   
   
       3 . The rotatable carrier as claimed in  claim 2 , wherein said rotating means includes a motor coupled to said gear, to rotate said housing relative to said casing via an engagement of said gear with said inner rack of said housing.  
   
   
       4 . The rotatable carrier as claimed in  claim 3 , wherein said rotating means includes a reduction gearing coupled between said gear and said motor.  
   
   
       5 . The rotatable carrier as claimed in  claim 3 , wherein said casing includes a control circuit coupled between said motor and said detecting device.  
   
   
       6 . The rotatable carrier as claimed in  claim 1 , wherein said casing includes a plate secured thereon, and a plurality of balls disposed between said plate and said housing, to smoothly support said housing on said plate of said casing.  
   
   
       7 . The rotatable carrier as claimed in  claim 6 , wherein said plate includes a track having a groove formed therein to receive said balls.  
   
   
       8 . The rotatable carrier as claimed in  claim 6 , wherein said housing includes a track having a groove formed therein to receive said balls.  
   
   
       9 . The rotatable carrier as claimed in  claim 6  further comprising a ring rotatably engaged onto said plate and including a plurality of holes formed therein to receive said balls respectively, and to space said balls away from each other.  
   
   
       10 . The rotatable carrier as claimed in  claim 6 , wherein said housing includes a center cavity formed therein, said plate includes an axle extended therefrom and engaged into said center cavity of said housing, to rotatably attach said housing to said plate.  
   
   
       11 . The rotatable carrier as claimed in  claim 1 , wherein said casing includes a peripheral flange extended radially and outwardly therefrom, and said housing includes a circular bar secured thereto and engaged with said peripheral flange of said casing, to rotatably attach said housing to said casing, and to prevent said housing from being disengaged from said casing.  
   
   
       12 . The rotatable carrier as claimed in  claim 1 , wherein said detecting device includes a signal emitting device, and a signal receiving device, and said interacting member of said housing is provided to act with said signal emitting device and said signal receiving device of said detecting device.  
   
   
       13 . The rotatable carrier as claimed in  claim 12 , wherein said interacting member of said housing is arranged to be engaged between said signal emitting device and said signal receiving device of said detecting device, to selectively block signals emitted from said signal emitting device, and to prevent the signals from being emitted to said signal receiving device of said detecting device.  
   
   
       14 . The rotatable carrier as claimed in  claim 1  further comprising at least one switch to control said rotating means.  
   
   
       15 . The rotatable carrier as claimed in  claim 1  further comprising a remote control device to remote control said rotating means.  
   
   
       16 . The rotatable carrier as claimed in  claim 1  further comprising at least one second detecting device attached to said casing, to act with said interacting member of said housing, and to control said rotating means, and to limit a rotational movement of said housing relative to said casing together with said detecting device.