Patent Publication Number: US-2002000339-A1

Title: Power device of scooter

Description:
FIELD OF THE INVENTION  
       [0001] The present invention relates generally to a scooter, and more particularly to a power device of the scooter.  
       BACKGROUND OF THE INVENTION  
       [0002] As shown in FIG. 1, a prior art power device  1  of the scooter comprises a battery  2  which is disposed in the lower segment of a handlebar support  4  of the scooter  3 . This structure is defective in design in that the battery  2  undermines the esthetic effect of the scooter  3 , and that the naked battery  2  is vulnerable to damage caused by impact of a foreign object.  
       SUMMARY OF THE INVENTION  
       [0003] The primary objective of the present invention is to provide a scooter with a power device which is free of the drawbacks of the prior art scooter power device described above.  
       [0004] The power device of the present invention is design for use in a scooter comprising a main board, a rear wheel pivoted to the rear end of the main board, a handlebar support fastened with the front end of the main board, and a front wheel pivoted to the bottom end of the handlebar support. The power device comprises two side plates parallel to each other and extending downward from the main board; a carrying portion disposed at the bottom of the two side plates for forming a receiving space in conjunction with the main board and the side plates; and an electric unit disposed in the receiving space for providing the scooter with power. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0005]FIG. 1 shows a perspective view of a prior art scooter power device.  
     [0006]FIG. 2 shows a side view of a first preferred embodiment of the present invention.  
     [0007]FIG. 3 shows an exploded view of the first preferred embodiment of the present invention.  
     [0008]FIG. 4 shows a perspective view of a second preferred embodiment of the present invention.  
     [0009]FIG. 5 shows a perspective view of a third preferred embodiment of the present invention.  
     [0010]FIG. 6 shows an exploded view of a fourth preferred embodiment of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
     [0011] As shown in FIGS. 2 and 3, a power device  10  embodied in the present invention is mounted on a scooter  12  which comprises a long main board  14 , a rear wheel  15  pivoted to the rear end of the main board  14 , a handlebar support  16  fastened pivotally with the front end of the main board  14 , a front wheel  18  pivoted to the bottom end of the handlebar support  16 , and a motor  19  mounted on the rear end of the main board  14  for driving the rear wheel  15 . The power device  10  comprises two side plates  20 , a carrying portion  30 , and an electric unit  40 .  
     [0012] The side plates  20  are slender and rectangular and are parallel to each other such that they extend downward from the main board  14 .  
     [0013] The carrying portion  30  is a rectangular bottom plate  32  for connecting the two side plates  20  such that a receiving space  34  is formed in conjunction with the main board  14  and the side plates  20 . The receiving space  34  is provided at two ends thereof with an opening  341 .  
     [0014] The electric unit  40  is a battery of a flat platelike construction and is disposed in the receiving space  34  via the opening  341  for driving the motor  19  which in turn drives the rear wheel  15  of the scooter  12 .  
     [0015] The main board  14 , the side plates  20 , and the carrying portion  30  are integrally made of aluminium by extrusion at low cost.  
     [0016] In light of the power device  10  of the present invention being formed of the main board  14 , two side plates  20 , and the carrying portion  30 , the power device  10  looks neat. In addition, the electric unit  40  is well shielded by the main board  14 , the side plates  20 , and the bottom plate  32 .  
     [0017] As shown in FIG. 4, a power device  50  of the second preferred embodiment is similar in construction to that of the first preferred embodiment, except that the power device  50  has a carrying portion  52  which comprises two long stop strips  54  extending downward from the bottom of the two side plates  55  such that they are separated from each other at an interval, and that they form a partially-closed receiving space  58  in conjunction with the main board  56  and the side plates  55 . The receiving space  58  is intended to accommodate an electric unit  59  for powering the scooter.  
     [0018] As shown in FIG. 5, a power device  60  of the third preferred embodiment is similar in construction to that of the first preferred embodiment, except that the power device  60  has a carrying portion  62  which is formed of two slender connection strips  64  parallel to each other at an interval for connecting the bottoms of the two side plates  65  such that the carrying portion  62 , the main board  66  and the side plates  65  jointly form a partly-closed receiving space  68  in which an electric unit  69  is disposed. The connection strips  64  may be two or more in number.  
     [0019] As shown in FIG. 6, a power device  70  of the fourth preferred embodiment of the present invention is similar in construction to that of the first preferred embodiment, with the exception being that the power device  70  comprises two side plates  72  extending downward from two opposite end edges of the main board  74 , and a carrying portion  76  forming an arcuate guide angle at the juncture of the carrying portion  76  and the side plates  72 . The power device  70  looks neat and has a spacious receiving space  78  for accommodating an electric unit  79 .