Abstract:
A replaceable structure for footwear includes an outsole, a plurality of replaceable footwear bodies and a heel. People can alternate different kinds of replaceable footwear bodies for different situations, such as high heels for work, sneakers for exercises and slippers for indoors. In addition, the zipper structure makes people more convenient to alternate different replaceable footwear bodies for different activities.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a structure for footwear, and more particularly to a replaceable structure for footwear. 
         [0003]    2. Description of Related Art 
         [0004]    People often wear different kinds of footwear in their daily life. For example, a lady wears her high heels to go to her office in the morning In the afternoon, she maybe wears sneakers instead of high heels to do some exercises. After the work, she often wears slippers at home. Thus, people often spend money buying different footwear in their life for different activities. 
         [0005]    The conventional footwear has an unchangeable shape. For example, the shape of high heels must have high heel portions which cause ladies to do exercises inconveniently when they are wearing high heels. In addition, those different shoes, such as leather shoes, high heels, sneakers, outdoor slippers and indoor slippers . . . etc, occupy lots of spaces in the house. If the footwear is designed to be attachable and detachable, then one shoe body can be modified to another kind of footwear. In other words, the leather shoes might become the sandals after attaching or detaching actions. In this way, people can save their money on the footwear and there are more available spaces in their houses. 
         [0006]    The present invention poses one replaceable structure for footwear to mitigate and/or obviate the disadvantages of the conventional. 
       SUMMARY OF THE INVENTION 
       [0007]    The main objective of the present invention is to provide an improved footwear structure, more particularly to a replaceable structure for footwear. 
         [0008]    To achieve the objective, a replaceable structure for footwear comprises an outsole, a first zipper formed on the top of the outsole, an engaging surface defined at a rear-bottom of the outsole, a plurality of replaceable footwear bodies having a chain section corresponding to the first zipper for zipping up, the replaceable footwear bodies being designed for covering feet in different activities, a heel being detachable to connect to the engaging surface of the outsole, wherein people can replace the broken heels to the new heels and alternate different kinds of replaceable footwear bodies for different activities. 
         [0009]    The first zipper is formed on the rear-top of the high-heeled outsole and corresponding to a first and second slingback bodies for covering ankle. The first zipper surrounds the top of the outsole and corresponding to the replaceable footwear bodies which are covering a whole foot. Two second zippers are extruding on the top of the outsole at two sides respectively and located near the front end of the outsole. A first slipper body or a second slipper body has two front chain sections corresponding to the second zippers. The first slipper body or the second slipper body goes across the mid-foot. Two second zippers are extruding on the top of the outsole at two sides respectively and located near the front end of the outsole. The second zippers are surrounded by the first zipper. The first slipper body or the second slipper body has two front chain sections corresponding to the second zippers. The first slipper body or the second slipper body goes across the mid-foot. The engaging surface of the outsole further comprises a first engaging hole and a first engaging protrusion. The first engaging hole is located at the rear end of the outsole. The first engaging protrusion is located at the middle of the outsole. The heel has a second engaging protrusion corresponding to the first engaging hole and a second engaging hole corresponding to the first engaging protrusion. The heel is connected to the outsole by the first engaging protrusion engaging with the second engaging hole and the second engaging protrusion engaging with the first engaging hole. The second protrusion is enlarged at the top to engage with the first engaging hole and is formed as a trapezoid. The first engaging hole is formed as a trapezoid hole for engaging with the second protrusion. The first protrusion is enlarged at the bottom to engage with the second engaging hole and is formed as a trapezoid. The second engaging hole is formed as a trapezoid hole for engaging with the first protrusion. The bottom of the heels and the bottom of the outsoles are aligned horizontally or the bottom of the heels is extruding from the bottom of the outsoles. The outsole is flat and a high-heeled outsole for female&#39;s footwear has a high heel portion attached to the rear-bottom of the high-heeled outsole so that the rear end of the high-heeled outsole is higher than the front end of the high-heeled outsole. 
         [0010]    Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]      FIG. 1  is a partially exploded view of a replaceable structure for footwear and a replaceable footwear body is a leather shoe body; 
           [0012]      FIG. 2  is a partially cross-sectional view of the replaceable structure for footwear and the replaceable footwear body is the leather shoe body; 
           [0013]      FIG. 3  is a perspective view of the replaceable structure for footwear and the replaceable footwear body is a sneaker body; 
           [0014]      FIG. 4  is an exploded view of the replaceable structure for footwear to show the sneaker transforming into a slipper; 
           [0015]      FIG. 5  is a perspective view of the replaceable structure for footwear and the replaceable footwear body is a first slipper body; 
           [0016]      FIG. 6  is a perspective view of the replaceable structure for footwear and the replaceable footwear body is a second slipper body; 
           [0017]      FIG. 7  is a perspective view of the replaceable structure for footwear and the replaceable footwear body is a mule body; 
           [0018]      FIG. 8  is a perspective view of the replaceable structure for footwear and the replaceable footwear body is a high-heeled body; 
           [0019]      FIG. 9  is a partially exploded view of the replaceable structure for footwear to show a first slingback body connecting to the mule; 
           [0020]      FIG. 10  is a perspective view of the replaceable structure for footwear and the replaceable footwear body is the first slingback body and the mule body; and 
           [0021]      FIG. 11  is a partially exploded view of the replaceable structure for footwear to show a second slingback body connecting to the mule. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0022]    Referring to  FIGS. 1-11 , a replaceable structure for footwear in accordance with the present invention comprises an outsole  1 , a plurality of replaceable footwear bodies  2  and a heel  3 . The outsole  1  is flat and a first zipper  11  is formed on the top of the outsole  1 . The first zipper  11  surrounds the top of the outsole  1 . An engaging surface  12  is defined at a rear-bottom of the outsole  1 . The replaceable footwear body  2  has a chain section  21  corresponding to the first zipper  11  for zipping up. The replaceable footwear bodies  2  are designed for covering feet in different activities. The heel  3  is detachable to connect to the engaging surface  12  of the outsole  1 . The engaging surface  12  of the outsole  1  further comprises a first engaging hole  121  and a first engaging protrusion  122 . The first engaging hole  121  is located at the rear end of the outsole  1 . The first engaging protrusion  122  is located at the middle of the outsole  1 . The heel  3  has a second engaging protrusion  31  corresponding to the first engaging hole  121  and a second engaging hole  32  corresponding to the first engaging protrusion  122 . The second protrusion  31  is enlarged at the top to engage with the first engaging hole  121  and is formed as a trapezoid. The first engaging hole  121  is formed as a trapezoid hole for engaging with the second protrusion  31 . The first protrusion  122  is enlarged at the bottom to engage with the second engaging hole  32  and is formed as a trapezoid. The second engaging hole  32  is formed as a trapezoid hole for engaging with the first protrusion  122 . After the heels  3  engage with the outsoles, the bottom of the heels  3  and the bottom of the outsoles  1  are aligned horizontally (as shown in  FIG. 2 ) or the bottom of the heels  3  is extruding from the bottom of the outsoles  1  (not shown). Generally, when people stand up or walk, the center of gravity is above the heels  3  so that the heels  3  are damaged easily during walk. When the heels  3  are broken, people only detach the broken heels  3  from the outsoles  1  and alternate the new heels  3  for renewing the footwear. 
         [0023]    The replaceable footwear bodies  2  comprise a leather shoe body  22  so that a leather shoe is constructed by combining the leather shoe body  22  with the outsole  1  as shown in  FIGS. 1-2 . When people want to wear sneakers, they only alternate a sneaker body  23  instead of the leather shoe body  22  via zipping up the first zipper  11  on the chain section  21  (as shown in  FIG. 3 ). 
         [0024]    Referring to  FIGS. 4-6 , the sneaker can transform into a slipper in the present invention. First of all, people unzip the first zipper  11  on the chain section  21  to detach the sneaker body  23  from the outsole  1 . Two second zippers  13  are extruding on the top of the outsole  1  at two sides respectively and located near the front end of the outsole  1 . The second zippers  13  are surrounded by the first zipper  11 . A first slipper body  4  or a second slipper body  42  has two front chain sections  41  corresponding to the second zippers  13 . The first slipper body  4  or the second slipper body  42  goes across the mid-foot and attaches to the outsole  1  so that the sneaker transforms into the slipper. 
         [0025]    Referring to  FIGS. 7-11 , the replaceable footwear bodies further comprise a high-heeled body  24 , a slingback body  26  and a mule body  44  for females. A high-heeled outsole  10  for female&#39;s footwear has a high heel portion  14  attached to the rear-bottom of the high-heeled outsole  10  so that the rear end of the high-heeled outsole  10  is higher than the front end of the high-heeled outsole  10 . The high heel portion  14  has an engaging surface  12  for connecting to the heel  3 . The second zipper  13  is zipped up on the front chain section  41  and the mule body  44  goes across the mid-foot to connect to the high-heeled outsole  10  so that female&#39;s mules come into the world as shown in  FIG. 7 . 
         [0026]    Referring to  FIG. 8 , the female&#39;s mules can further transform into high heels because the replaceable footwear bodies  2  comprise a high-heeled body  24 . First of all, unzip the second zipper  13  on the front chain section  41  to detach the mule body  44  from the high-heeled outsole  10 . Thereafter, zip the first zipper  11  on the chain section  21  to connect the high-heeled body  24  to the high-heeled outsole  10 . Thus, the mules transform into the high heels. 
         [0027]    Referring to  FIGS. 9-11 , the female&#39;s mules can also transform into slingbacks because the replaceable footwear bodies  2  comprise a first slingback body  26  and a second slingback body  28 . The first slingback body  26  is using a string to tighten ankle. The second slingback body  28  is using a belt with a buckle to tighten ankle. The first and second slingback bodies  26 ,  28  both have a rear chain section  27  corresponding to the first zipper  11  of the high-heeled outsole  10 . The first zipper  11  might be formed on the rear-top of the high-heeled outsole  10 . Thus, when the first or second slingback body  26 ,  28  connects to the high-heeled outsole  10  by the first zipper  11  zipping on the rear chain section  27 , the ankle is surrounded by the first or second slingback body  26 ,  28 . 
         [0028]    Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.