Patent Publication Number: US-2012037678-A1

Title: Bicycle carrying frame allowing the bicycles to cross over on a tail door of car from front to rear

Description:
BACKGROUND OF THE INVENTION 
     a) Field of the Invention 
     The present invention relates to a bicycle carrying frame allowing the bicycles to cross over on a tail door of car from front to rear, and more particularly to the bicycle carrying frame wherein front fork fixing seats are located alternately at different heights and from front to rear, so that plural sets of bicycle front forks, with front wheels being dismantled, can be fixed and bicycle handles can be prevented from colliding with each other. Therefore, a space for emplacing the bicycles can be reduced that a car body can be provided with plural bicycles to be transported with the car. 
     b) Description of the Prior Art 
     In recent years, a casual activity and walking out have been more and more popular and riding a bicycle has become one of the most favorite casual activities. However, it is an issue to be worried about by a car owner to figure out how to transport the bicycle to a destination with the car. As an existing bicycle carrying frame dedicated for the car is mostly hung on a top or tail of the car, it has a drawback of being very difficult to carry three or four bicycles to satisfy a need of riding the bicycles by a whole family and plural persons. 
     SUMMARY OF THE INVENTION 
     Accordingly, the primary object of the present invention is to provide a bicycle carrying frame dedicated for a car, comprising front fork fixing seats, a main unit rack, bicycle body support brackets, adjustment belts and hook-ring belts, The bicycle carrying frame can be installed on a tail door of car to fix the bicycles, with that the front fork fixing seats which are located alternately at different heights from front to rear can prevent bicycle handles from colliding with each other and that spacing between the front fork fixing seats can be adjusted according to a practical need, thereby reducing a space for emplacing the bicycles. 
     To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows a schematic view of the present invention. 
         FIG. 2  shows an exploded view of the present invention. 
         FIG. 3  shows a schematic view of appearances of bicycle body support brackets that are folded, according to the present invention. 
         FIG. 4  shows a schematic view of practical installation of the present invention on a tail door of car. 
         FIG. 5  shows a schematic view of bicycle front forks that are installed at the front fork fixing seats, according to the present invention. 
         FIG. 5-1  shows a front planar view of the bicycle front forks that are installed at the front fork fixing seats, according to the present invention. 
         FIG. 6  shows a first schematic view of bicycles that are emplaced on a bicycle carrying frame, according to the present invention. 
         FIG. 7  shows a second schematic view of bicycles that are emplaced on a bicycle carrying frame, according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to  FIG. 1  and  FIG. 2 , the present invention is constituted by a main unit rack  10 , at least one front fork fixing seat  20 , at least one bicycle body support bracket  50 , at least one adjustment belt  40  and at least one hook-ring belt  30 . The main unit rack  10  is a #-shaped rack and after a tail door of car has been lifted open, the main unit rack  10  is hooked on the tail door with the hook-ring belts  30 . The front fork seats  20  that are connected at proper locations of the main unit rack  10  are T-shaped seat units and are located alternately at different heights from front to rear. A bolt  221  of a front wheel fast dismantlement tool  22  penetrates the front fork fixing seat  20  and is then locked tightly with a nut  222 . The bicycle body support bracket  50  can be pivoted on a proper location of the main unit rack  10  with a hinge  51 . Referring to  FIG. 3 , after being folded, the bicycle body support bracket SO that supports a bicycle can be parallel to the main unit rack  10  and each bicycle body support bracket  50  is provided respectively with the adjustment belt  40  to fix the bicycle; whereas, the main unit rack  10  is provided with plural hook-ring belts  30 . 
     Referring to  FIG. 4 , the bicycle carrying frame of the present invention utilizes plural hook-ring belts  30  to fix the main unit rack  10  on the tail door or car. 
     Referring to  FIG. 5  and  FIG. 5-1 , a bicycle front fork A which is dismantled with a front wheel can cross over on the bolt  221  of the fast dismantlement tool  22  of the front fork fixing seat  20 . The bolt  221  of the fast dismantlement tool  22  is locked tightly with the nut  222 , so that the bicycle front fork A can be fixed on the front fork fixing seat  20 . 
     Referring to  FIG. 6  and  FIG. 7 , for the front fork fixing seats  20  that are located alternately at different heights from front to rear, spacing between them can be adjusted according to a practical need. When the bicycle is installed on the tail door of car, as the front fork seats  20  that are located alternately at different heights from front to rear can stagger bicycle handles B, a configuration that can save the space most can be provided to emplace plural bicycles, thereby transporting the bicycles to a destination with the car. 
     Based on the description as detailed above, the present invention discloses the bicycle front fork fixing devices that are located alternately at different heights from front to rear, The devices can be installed on the tail door of car to provide the configuration that saves the space most to fix the bicycles, thereby emplacing plural bicycles that are transported to the destination with the car. 
     It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.