Abstract:
A wheel rim is constructed to include a wheel rim body holding a tire, and a supplementary tire support mounted on a flange around the periphery of the wheel rim body for supporting the tire for enabling the car to run to a repair shop in case the tire is broken during running.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates generally to a wheel rim and more particularly, to an improved structure of wheel rim assembly with tire anti-knocking anti-breaking protection.  
         [0003]     2. Description of the Related Art  
         [0004]     When the tire of a vehicle wheel is inflated, high-pressure air supports the tire in shape for running on the road. If a pointed body pierced the tire, the broken tire becomes unable to support the vehicle wheel for normal running on the road, and the broken tire must be repaired immediately. However, It is dangerous if one of the wheels of a vehicle is broken during a high speed running.  
       SUMMARY OF THE INVENTION  
       [0005]     The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a wheel rim for vehicle tire, which supports the tire in shape for enabling the car to run to a repair shop in case the tire is broken during running. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0006]      FIG. 1  is a cross sectional view showing a wheel rim assembly installed in a vehicle tire according to the present invention.  
         [0007]      FIG. 2  is a schematic drawing showing the structure of a joint block according to the present invention.  
         [0008]      FIG. 3  is an exploded view of a part of a supplementary tire support according to the present invention.  
         [0009]      FIG. 4  is an exploded view of another part of the supplementary tire support according to the present invention.  
         [0010]      FIG. 5  is a bottom view of the supplementary tire support according to the present invention.  
         [0011]      FIG. 6  is a cross sectional view of a vehicle wheel constructed according to the present invention.  
         [0012]      FIG. 7  is a schematic drawing showing the broken tire supported on the supplementary tire support around the wheel rim according to the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0013]     Referring to  FIG. 1 , a wheel rim assembly in accordance with the present invention is shown comprised of a wheel rim body  10 , and a supplementary tire support  2000  mounted around the periphery of the wheel rim body  10 . The wheel rim body  10  comprises a flange  101  extended around the periphery on the middle (see  FIG. 1 ). The cross section of the flange  101  can be made having any of a variety of shapes.  
         [0014]     Referring to  FIG. 2  and  FIG. 1  again, the supplementary tire support  2000  is comprised of a plurality of joint blocks  20 , a plurality of links  30 , a first end connecting member  40 , a second end connecting member  40   a , and a screw bolt  50 .  
         [0015]     The joint blocks  20  are hollow block members (see  FIGS. 1 and 2 ), each having a top recess  201  fixedly mounted with a packing pad  203 , and two through holes  202  axially aligned at two opposite lateral sides. The packing pad  203  has a recessed portion  204  fitting the flange  101  of the wheel rim body  10 . The bottom side of each joint block  20  has a rhombic shape (see  FIG. 5 ).  
         [0016]     The links  30  connect the joint blocks  20  in series, each comprising a front barrel  301   a  transversely disposed at the front side, two rear barrels  301  transversely aligned at the rear side, and an arched bearing portion  302  transversely disposed at the rear side and connected between the rear barrels  301  (see  FIG. 3 ).  
         [0017]     The first end connecting member  40  and the second end connecting member  40   a  are connected together to join the ends of the series of joint blocks  20  (see  FIG. 4 ). The first end connecting member  40  comprises a U-shaped base frame  402 , two transverse barrels  401  respectively fixedly provided at the ends of the U-shaped base frame  402 , and a through hole  403  extended through the middle part of the U-shaped base frame  402  (see  FIG. 4 ). The second end connecting member  40   a  comprises a base frame  402   a , a barrel  401  fixedly transversely provided at the front side of the base frame  402   a , a screw hole  403   a  axially defined in the rear side of the base frame  402   a , and a pin hole  404  formed in one lateral side of the base frame  402   a  (see  FIG. 4 ).  
         [0018]     The screw bolt  50  is inserted through the through hole  403  of the first end connecting member  40  and threaded into the screw hole  403   a  of the second end connecting member  40   a  to secure the first end connecting member  40  and the second end connecting member  40   a  together, having a polygonal shoulder  501  for the grasping of a wrench or the like that is used to drive the screw bolt  50  into the screw hole  403   a  of the second end connecting member  40   a  and a series of transverse pin holes  502  (see  FIG. 4 ). A pin  503  is inserted through the pin hole  404  of the base frame  402   a  of the second end connecting member  40   a  into one pin hole  502  of the screw bolt  50  to lock the screw bolt  50  to the second end connecting member  40   a.    
         [0019]     Referring to  FIGS. 1-4  again, by means of connecting the barrels  301 ; 301   a  of the links  30  and the barrels  401 ; 401   a  of the end connecting members  40 ; 40   a  to the through holes  202  of the joint blocks  20  with screw bolts  60 , the rim support  200  and the joint blocks  20  with the links  30  and the end connecting members  40 ; 40   a  are fastened together, thereby forming the desired supplementary tire support  2000  around the periphery of the wheel rim body  10  within the tire  1000 . After insertion of the screw bolt  60  into the through holes  202  of one joint block  20  to connect the rear barrels  301  of one link  30  to the front barrel  301   a  of another link  30  transversely disposed at the front side, two rear barrels  301 , a pin  61  is fastened to a pin hole  60   a  in the rear end of the screw bolt  60  to secure the screw bolt  60  to the respective joint block  20 .  
         [0020]     Referring to  FIG. 6 , the supplementary tire support  2000  is mounted inside the tire  1000 , and then the wheel rim body  10  is inserted into the inside of the tire  1000  and fixedly fastened to the tire  1000 , and then the hand is inserted into the tire  1000  to push the supplementary tire support  2000 , forcing the recessed portion  204  of each joint block  20  into engagement with the flange  101  of the wheel rim body  10  (see  FIGS. 1, 2  and  6 ), and then the screw bolt  50  is inserted through the through hole  403  of the first end connecting member  40  and threaded into the screw hole  403   a  of the second end connecting member  40   a  and fastened tight with a wrench to affix the supplementary tire support  2000  to the flange  101  of the wheel rim body  10 , and then the pin  503  is inserted through the pin hole  404  of the base frame  402   a  of the second end connecting member  40   a  into one pin hole  502  of the screw bolt  50  to lock the screw bolt  50  to the second end connecting member  40   a.    
         [0021]     Referring to  FIG. 7 , when the tire  1000  is broken, the supplementary tire support  2000  support the broken tire  1000 , enabling the driver to drive the car to a vehicle repair shop for repair.  
         [0022]     Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.