Play toy system using remote controlled traveling toy, remote-controlled traveling toy, and play board

Abstract

A play toy system using a remote-controlled traveling toy, which enables the remote-controlled traveling toy to make a movement that is more unexpected than before. The remote-controlled traveling toy includes one front wheel and two rear wheels. The traveling toy is remotely controlled by remote control signals and is so constructed as to travel on a traveling surface of a play board. The diameter sizes of the two rear wheels 7 and 9 are different. With one front wheel and two rear wheels having a different diameter, the remote-controlled traveling toy can move more unexpectedly than anyone has ever experienced, according to the state of the traveling surface of the play board.

1 . A play toy system using a remote-controlled traveling toy, comprising: 
 a remote control device for outputting a remote control signal;    a remote-controlled traveling toy including one front wheel, two rear wheels, and an electric motor remote controlled by said remote control signal; and    a play board having a travel surface on which said remote-controlled traveling toy travels;    wherein diameter sizes of said two rear wheels of said remote-controlled traveling toy are different.    
   
   
       2 . The play toy system using a remote-controlled traveling toy according to  claim 1 , wherein said remote control device comprises: 
 a switch to be operated for outputting a signal for rotating said electric motor at a normal speed; and    an acceleration switch to be operated for outputting an acceleration signal for rotating said electric motor at a speed faster than the normal speed.    
   
   
       3 . The play toy system using a remote-controlled traveling toy according to  claim 1 , wherein said remote-controlled traveling toy is constructed so that: 
 said electric motor and one or more batteries connected to said electric motor are mounted onto a body of said remote-controlled traveling toy; and    said one or more batteries are juxtaposedly arranged so that longitudinal axes thereof cross a center line of said body extending in a longitudinal direction of said body.    
   
   
       4 . The play toy system using a remote-controlled traveling toy according to  claim 1 , wherein said remote-controlled traveling toy is constructed so that: 
 said electric motor is arranged between said two rear wheels;    said one or more batteries are arranged between said electric motor and said front wheel; and    said one or more batteries are juxtaposedly arranged so that longitudinal axes thereof extend in a same direction as a direction in which said two rear wheels are arranged.    
   
   
       5 . The play toy system using a remote-controlled traveling toy according to  claim 1 , wherein an angle setting of said front wheel can be changed; and 
 wheel sections of said front wheel and said rear wheels are so formed that a dynamic friction resistance between said play board and said front wheel with the angle setting thereof capable of being changed becomes smaller than dynamic friction resistances between said rear wheels and said play board.    
   
   
       6 . The play toy system using a remote-controlled traveling toy according to  claim 1 , wherein a wheel section of said front wheel is formed of an ethylene polymer including low-density polyethylene and high-density polyethylene.  
   
   
       7 . The remote-controlled traveling toy according to  claim 6 , wherein said low-density polyethylene accounts for 30 weight percents or less of said ethylene polymer.  
   
   
       8 . A remote-controlled traveling toy including one front wheel and two rear wheels, wherein diameter sizes of said two rear wheels are different.  
   
   
       9 . A remote-controlled traveling toy including one front wheel and two rear wheels, and having an electric motor to be driven using one or more batteries as a power source, wherein 
 diameter sizes of two wheels of said rear wheels are different;    said electric motor and said one or more batteries connected to said electric motor are mounted onto a body of said remote-controlled traveling toy; and    said one or more batteries are juxtaposedly arranged so that longitudinal axes thereof cross a center line of said body extending in a longitudinal direction of said body.    
   
   
       10 . The remote-controlled traveling toy according to  claim 8 , wherein an angle setting of said front wheel can be changed; and 
 wheel sections of said front wheel and said rear wheels are so formed that a dynamic friction resistance between an installation surface and said front wheel with the angle setting thereof capable of being changed becomes smaller than dynamic friction resistances between said rear wheels and said installation surface.    
   
   
       11 . The remote-controlled traveling toy according to  claim 10 , wherein said wheel section of said front wheel is formed of an ethylene polymer including high-density polyethylene and low-density polyethylene.  
   
   
       12 . The remote-controlled traveling toy according to  claim 11 , wherein said low-density polyethylene accounts for 30 weight percents or less of said ethylene polymer.  
   
   
       13 . The remote-controlled traveling toy according to  claim 9 , wherein an angle setting of said front wheel can be changed; and 
 wheel sections of said front wheel and said rear wheels are so formed that a dynamic friction resistance between an installation surface and said front wheel with the angle setting thereof capable of being changed becomes smaller than dynamic friction resistances between said rear wheels and said installation surface.