Auxiliary shoe heel and method of fabricating the same

Abstract

Disclosed is an auxiliary shoe heel and a method of fabricating the same. The auxiliary shoe heel includes a hard heel part and a soft heel. The hard heel part includes a coupling member that includes a coupling end integrally formed with an end of a coupling rod. The hard heel part further includes a hard heel which surrounds the coupling end of the coupling member, and is formed of hard rubber in a semicircular plate shape through an insert injection molding process. The hard heel has a plurality of soft heel holes vertically passing therethrough. The soft heel is integrally formed with the hard heel through an insert injection molding process so as to fill the soft heel holes and surround side and bottom surfaces of the hard heel. The soft heel is not easily separated from the hard heel, and provides cushioning and anti-slip functions.

1 . An auxiliary shoe heel that is attached or coupled, using a coupling member, to a main shoe heel that is coupled to the bottom surface of a placement part of a shoe, on which a wearer's food is to be placed, and that supports the wear's foot, thereby functioning as an auxiliary heel, the auxiliary shoe heel comprising:
 a hard heel part including:
 a coupling member having a coupling end integrally formed with an end of a coupling rod; and 
 a hard heel being formed of hard rubber in a semicircular plate shape through an insert injection molding process so as to surround the periphery of the coupling end and having a plurality of soft heel holes which vertically passes through; and 
   a soft heel coupled to the hard heel of the hard heel part through an insert injection molding process,   wherein the soft heel is integrally formed with the hard heel part by filling the soft heel holes and surrounding side and bottom surfaces of the hard heel through an insert injection molding process, so that the soft heel, surrounding the bottom surface of the hard heel, provides cushioning and anti-slip functions when touching the ground.   
     
     
         2 . The auxiliary shoe heel according to  claim 1 , wherein a soft support heel of the soft heel protrudes from the bottom surface of the soft heel so that it comes into contact with the ground first, thereby providing a sense of cushioning by coming into contact with the ground earlier than the soft heel and thus minimizing abrasion of the soft heel. 
     
     
         3 . The auxiliary shoe heel according to  claim 2 , wherein a ring-shape recess is formed to be recessed in a border between the soft heel and the soft support heel and has a diameter larger than that of the soft support heel, so that a periphery of the soft support heel expands to enter into the ring-shaped recess when the soft support is pressed. 
     
     
         4 . The auxiliary shoe heel according to  claim 1 , wherein a plurality of non-slips extending in a width direction is formed on the bottom surface of the soft heel, which comes into contact with the ground, thereby maximizing an anti-slip effect. 
     
     
         5 . The auxiliary shoe heel according to  claim 1 , wherein a plurality of to-be-filled grooves is formed in the periphery of the hard heel so as to be filled with the soft heel when the soft heel is coupled through an insert injection molding process, so that a coupling force between the hard heel and the soft heel is increased as the to-be-filled grooves  34   b  are filled with the soft heel. 
     
     
         6 . The auxiliary shoe heel according to  claim 5 , wherein the to-be-filled grooves are formed by cutting an outer surface of the hard heel, groove hook portions are formed at both sides of an opening so as to face each other, a to-be-filled space having a circular sectional shape, a triangular sectional shape, or a rectangular sectional shape is formed to be recessed between the groove hook portions. 
     
     
         7 . The auxiliary shoe heel according to  claim 1 , wherein
 a hook portion, protruding outward, or a soft heel recess is formed in an end of the periphery of the hard heel, a plurality of soft heel recesses is formed in the bottom surface of the hard heel,   a plurality of upper ribs is formed in the hard heel and arranged along an outer periphery of an upper body coupled to the coupling end of the coupling member,   a plurality of lower ribs is formed in the hard heel and arranged along an outer periphery of a lower body integrally formed with but distanced from the upper body so as to be misaligned with the upper ribs, and   the soft heel fills, is hooked by, or attached to the hook portion, the soft heel recesses, a gap between the upper body and the lower body, the upper ribs, or the lower ribs, so that a coupling force is increased.   
     
     
         8 . The auxiliary shoe heel according to  claim 1 , wherein
 a filling-and-expanding part having a diameter larger than a diameter of the soft heel hole is formed at an upper end of the soft heel holes formed in the hard heel when the soft heel holes are filled with the soft heel through an insert injection molding process, so that the soft heel fills the soft heel holes and the filling-and-expanding part and thus is latched by the filling-and-expanding part, thereby not slipping off and falling down.   
     
     
         9 . The auxiliary shoe heel according to  claim 1 , wherein insertion parts are integrally formed with the top surface of the hard heel so as to be inserted in the main shoe heel. 
     
     
         10 . The auxiliary shoe heel according to  claim 1 , wherein protrusions are formed to protrude from the bottom surface of the main shoe heel and insertion recesses are formed in the top surface of the hard heel so that the protrusions are inserted into and coupled to the insertion recesses. 
     
     
         11 . A method for manufacturing an auxiliary shoe heel that is attached or coupled, using a coupling member, to a main shoe heel that is coupled to the bottom surface of a placement part of a shoe, on which a wearer's foot is to be placed, and that supports the wear's foot, thereby functioning as an auxiliary heel, the auxiliary shoe heel comprising:
 a hard heel part including:
 a coupling member having a coupling end integrally formed with an end of a coupling rod; and 
 a hard heel being formed of hard rubber in a semicircular plate shape through an insert injection molding process so as to surround the periphery of the coupling end and having a plurality of soft heel holes which vertically passes through; and 
 a soft heel coupled to the hard heel of the hard heel part through an insert injection molding process, 
   wherein the soft heel hole is formed to vertically pass through the hard heel, and the soft heel not only fills the soft heel hole but also surrounds side and bottom surfaces of the hard heel through an insert injection molding process so as to be integrally formed with the hard heel, so that the soft heel, surrounding the bottom surface of the hard heel, provides cushioning and anti-slip functions when touching the ground.   
     
     
         12 . The method for manufacturing the auxiliary shoe heel according to  claim 11 , wherein a soft support heel of the soft heel is formed to protrude from the bottom surface of the soft heel so as to come in contact with the ground first before the soft heel touches the ground, thereby providing a cushioning function and minimizing abrasion of the soft heel. 
     
     
         13 . The method for manufacturing the auxiliary shoe heel according to  claim 11 , wherein a plurality of non-slips extending in a width direction is formed on the bottom surface of the soft heel which comes into contact with the ground, thereby maximizing an anti-slip effect. 
     
     
         14 . The method for manufacturing the auxiliary shoe heel according to  claim 11 , wherein
 a plurality of to-be-filled grooves, which is to be filled with the soft heel when the soft heel is coupled through an insert injection molding process, is formed in the periphery of the hard heel,   groove hook portions are formed at both sides of an opening of the to-be-filled groove which is formed by cutting an outer surface of the hard heel so as to face each other,   a to-be-filled recess having a circular sectional shape, a triangular sectional shape, or a rectangular sectional shape is formed to be recessed between the groove hook portions, and   the soft heel fills the to-be-filled grooves, so that a coupling force between the soft heel and the hard heel is increased.