Patent Publication Number: US-6338207-B1

Title: Sole and pressure-buffer insert arrangement sports shoe

Description:
BACKGROUND AND SUMMARY OF THE INVENTION 
     The present invention relates to sports shoes and, more specifically, to a pressure-buffer insert adapted for inserting into the sole of a sports shoe to buffer the pressure of the sole of the user wearing the sports shoe. 
     In order to absorb shocks and reinforce the springy power of shorts shoes, sports shoe manufacturers may install air cushion means, oil bag means, and the like in the insole at locations corresponding to the ball of the foot or the heel. Because some of the material may leak when overheated, it does not meet environment protection requirements. 
     It is the main object of the present invention to provide a sole and pressure-buffer insert arrangement for sports shoe, which effectively buffers the pressure from the sole of the user wearing the sports shoe. It is another object of the present invention to provide a sole and pressure-buffer insert arrangement for sports shoe, which uses linked shells to hold two inflatable air bags at locations corresponding to the ball of the foot and the heel for buffering the pressure of the sole of the user wearing the sports shoe. It is still another aspect of the present invention to provide a sole and pressure-buffer insert arrangement for sports shoe, which allows the user to adjust the air pressure of the inflatable air bags conveniently. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is an exploded view of a pressure-buffer insert according to the present invention. 
     FIG. 2 is an assembly view of the pressure-buffer insert shown in FIG.  1 . 
     FIG. 3 is a sectional view showing the pressure-buffer insert installed in the sole of a sports shoe according to the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to Figures from  1  through  3 , a pressure-buffer insert is transversely inserted into a side opening in the sole  1  of a sports shoe to buffer the pressure from the sole of the user wearing the sports shoe. The pressure-buffer insert, as shown in FIG. 1, is comprised of two linked shells  10  and  11 , and two inflatable air bags  12  and  13 . The linked shells  10  and  11  are made of elastic material in integrity, defining a respective side-open receiving chamber  101  and  111 . The inflatable air bags  12  and  13  are respectively inserted into the side-open receiving chambers  101  and  111  of the shells  10  and  11 , each having an air valve  121  or  131  disposed at one lateral side. After installation of the pressure-buffer insert in the side opening in the sole  1 , the air valves  121  and  131  are exposed to the outside. Through the air valves  121  and  131 , air is driven into the inflatable air bags  12  and  13  to inflate the inflatable air bags  12  and  13  to the desired inflated status. When the user walks or runs, the pressure-buffer insert is continuously compressed and released to buffer the pressure from the sole of the user. 
     As stated above, the air valves  121  and  131  of the air bags  12  and  13  are exposed to the outside of the sole  1 , the user can adjust the inflated status of the inflatable air bags  12  and  13  conveniently. 
     While only one embodiment of the present invention has been shown and described, it will be understood that various modifications and changes could be made thereunto without departing from the spirit and scope of the invention disclosed.