Patent Publication Number: US-5896681-A

Title: Sole pad with shock-absorbing and massaging effect

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a sole pad with a shock-absorbing and massaging effects. On the underside of the sole pad is provided with a mounting recess including first and second receiving cavities that are connected to each other by a connect groove. A pressure transmitter has a first massaging ball and a second massaging ball filled with liquid and in communication with each other by way of a tubular portion. The massaging balls of the pressure transmitter are produced in the same shape as the first and second receiving cavities with the tubular portion in the form of the connection groove so that the pressure transmitter can be securely housed in the first and second cavities and the connection groove. The first and second receiving cavities have respectively a through hole so as to permit the massaging balls filled with liquid to outextend the surface of the sole pad and to contact with the bottom of a wearer&#39;s foot. Liquid filled in the pressure transmitter can move between the first and second massaging balls by way of the tubular portion when the wearer&#39;s foot exerts unbalanced pressure on the sole pad in walking so as to effect shock absorbing and massaging purpose at the same time. 
     Conventional sole pads are made in various materials and have different thickness, softness and functions mainly for the protection of people&#39;s feet from blisters caused by constant friction in walking. But the quality and structure of a sole pad can have direct effect on the protection of a wearer&#39;s feet. 
     SUMMARY OF THE INVENTION 
     The primary object of the present invention is to provide a sole pad put on top of a shoe sole and provided with a pair of soft massaging balls filled with liquid and communicating with each other by way of a tubular portion so that the filled liquid flow from one massaging ball to the other when unbalanced pressures exerted by a foot are applied to the balls, effecting massaging to the feet and helping the blood circulation of the feet in addition. 
     Another object of the present invention is to provide a sole pad equipped with a liquid filled pressure transmitter in which liquid can internally flow from one soft massaging ball to the other as a result of unbalanced pressures produced in running and jumping and exerted on the soft and flexible massaging balls so as to effect shock absorbing in addition. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a diagram showing the exploded components of the present invention; 
     FIG. 2 is a perspective diagram of the present invention; 
     FIG. 3A and 3B are cross-sectional view of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIG. 1, the sole pad with shock-absorbing and massaging effects is comprised of a sole pad 2 and a pressure transmitter 3. 
     The sole pad 2 is provided with a mounting recess 20 on the underside thereof, including a slantly disposed first receiving cavity 21 connected to a longitudinally placed second receiving cavity 22 by a connection groove 23. The first and second receiving cavities 21, 22 are respectively placed at the center and heel of the sole pad 2. The first receiving cavity 21 has a through hole 211 and so does the second receiving cavity 22 a through hole 221. 
     The pressure transmitter 3 filled with liquid internally and housed in the mounting recess 20 of the sole pad 2 is made up of a first soft massaging ball 31 and a second massaging ball 32 that are filled with liquid and communicates with each other by way of tubular portion 33. 
     Referring to FIG. 2, in assembly, the pressure transmitter 3 is engaged with the mounting recess 20 with the first and second massaging balls 31, 32 sticking out of the through holes 211, 221 of the first and second receiving cavities 21, 22. The assembled sole pad 2 is then placed on top of a shoe sole 1, as shown in FIG. 3. 
     In practical use, the first and second soft massaging balls 31, 32 filled with liquid and communicating with each other, are flexibly deformed due to unbalanced pressure exerted thereon, forcing liquid to be shifted between the two massaging balls 31, 32 by way of the tubular portion 33 in correspondence to the pressures exerted by a foot on the sole pad 2 whereby shock absorbing and massaging effects can be achieved accordingly.