Abstract:
The present invention relates to a sole having a tilt surface, and to a knee joint-protecting shoe including same, and more particularly, to a sole having a tilt surface in which the tilt surface formed at the sole of a shoe enables the foot of a wearer to be inclined or slipped, inwardly or outwardly, in order to correct abnormality in the lower skeletal extremity, and uniformly distribute load on the knee joint of the wearer to prevent degenerative knee arthritis and alleviate pain, and to a knee joint-protecting shoe including the outsole. The present invention further comprises a sole having a tilt surface for attachment to the bottom surface of a shoe, wherein the outsole has a top surface and a bottom surface formed parallel to each other, a tilt structure including an upper member and a lower member defined by a tilt surface formed in the widthwise direction, and deformable members arranged at predetermined intervals from both front and rear ends of the shoe in a lengthwise direction to generate shear deformation in a tilted direction between the upper member and the lower member.

Description:
TECHNICAL FIELD 
       [0001]    The invention relates to a sole having slanted surfaces and a knee joint-protecting shoe comprising the same sole, especially it being possible for an orientation of the lower extremities skeletons of the abnormal to be corrected by the fact that a foot is tilted or slid to an inner or outer surface by the sloping surfaces being formed at the sole. 
       BACKGROUND ART 
       [0002]    A knee joint is a part of the human body to keep the balance in such a way that a human being can keep on his or her feet while bearing the weight of the body with not four feet but two feet. For this reason, the knee joint moves gradually in the moment at which we are not aware of the motion of the knee joint. 
         [0003]    It is most ideal that a center line of the body weight must go through the center of the knee joint. However, for the most people, the center line of the body weight is not through the center of the knee joint through so that a large weight load continuously acted to only a portion of the knee joint. Accordingly, the knee joint of the body parts is one portion in which degenerative changes could be too often caused by aging. If the man has an incorrect walking habit, then he can also has an abnormal orientation of the skeletons of the legs so that the large weight could permanently affect only one part of the knee joint. 
         [0004]    The degenerative osteoarthritis of knee joint causes symptoms such as pain in the knee when standing up, the trembling of the knees when standing, the cracking sound in the knee joint when bending or unfolding of the knee, or gap between the both knees in which more than a fist can pass in the said gap at right standing state. Further, the knee arthritis is whose existence can be doubted if there is any symptoms like pain when going down the stairs being particularly intense, or like a pain occurring for more than two or three days after walking. 
         [0005]    The treatment of knee arthritis aims to reduce pain and increase the flexibility of the joint, but patients with such knee arthritis may not usually be cured completely. If the symptom is light, the pain and stiffness due to the ongoing can be alleviated with physical and pharmacological therapy, as well as weight reduction and the like. However, if a patient has a severe symptom of knee arthritis, the pain may be only reduced by the operation, or function of the knee joint are restored by the reconstruction. But, the operation is very expensive and annoying, so there are several cases in which the operation can not be made. 
         [0006]      FIG. 1  is the front view showing an alignment of a right leg of the O-shaped knee, and  FIG. 2  is the front view showing an alignment of a right leg of the X-shaped knee. As shown in  FIGS. 1 and 2 , at an alignment of a leg  1  of a person with O-shaped knee and an alignment of a leg  9  of a person with X-shaped knee, mechanical axis  50  is intended to represent the line connecting the center  3  of a femoral head with a center  5  of an ankle bone and inclined axis  70  is intended to represent the line connecting the center  3  of a femoral head with a center  7  of the knee joint. 
         [0007]    The term “Genu Varum”, commonly called with the O-shaped knee means the bended legs with O-shaped which the inclined axis  70  is inclined relative to the mechanical axis  50  toward the outside, and then two knees are not contacted each another when standing with two legs together. On the contrary, the means of X-shaped legs standing “Genu valgum” is that the inclined axis  70  is inclined relative to the mechanical axis  50  toward the inside, and then the two legs are bent from the knee joint in the direction of the outside when standing with two legs together. The larger the value of a tilt angle β between the inclined axis  70  and the mechanical axis  50 , the worse the degree of O- and X-shaped knee. 
         [0008]    This orientation of the skeletons of the abnormal legs, such as O- and X-shaped legs, is caused from congenital and acquired factors, and the load is concentrated to only one portion of a knee joint, so the degenerative osteoarthritis of knee joint is caused or knee joint is worn and lost. 
         [0009]    To alleviate and prevent the pain of degenerative osteoarthritis of knee joint and to correct the orientation of the skeletons of the abnormal legs, the shoe should used that is designed to tilt the foot to the inside when walking. 
         [0010]      FIG. 3  shows the rear view of the shoes of the prior art which are worn by a person with an alignment of the skeletons of the abnormal legs or the degenerative osteoarthritis of knee joint. As shown in  FIG. 3 , the shoes  10  have a sole  14  and an uppers of leather  12 , the sole  14  is formed so that the feet can be tilted to the inside of the shoes. If the man put on the said shoes  10  and went on the ground  500 , it could be inclined the feet and legs to the inside of the shoes itself, and thus causing a rotational force to move the knee toward the inside; so that the orientation of the skeletons of the abnormal legs was improved or the degenerative osteoarthritis of knee joint was treated. 
         [0011]    If, however, the men are putting on these shoes  10  and going on foot, there are happen excessive shear force on the ankle and knee joint because his foot are slid over to the inside of foot due to the inclination of the sole  14 . So, if you have the legs excessive force so that the feet can not slide, a tremendous load acts on the inner sides of the feet and knees, which would allow the degenerative osteoarthritis of knee joint to be rather worse. 
       DISCLOSURE OF THE INVENTION 
     Technical problem 
       [0012]    Starting from the said disadvantages, the invention has the objective to provide a sole with sliding surfaces and a knee joint-protecting shoe with the same sole, which the alignment of the skeletons of the abnormal legs can be corrected by inclining or sloping the foot to inward or outward with the tilt surfaces formed in the sole. 
       Solution to Problem 
       [0013]    The said objective according to the invention can be achieved by a sole having the tilt surfaces which is characterized in that, at the sole mounted to bottom of a shoe, the said sole is an inclined structure that is formed by including an upper member and a lower member, wherein the two components are split by the tilt surface being formed in the width direction. 
         [0014]    Here, a top of the upper member and a bottom of the lower member are formed parallel to each other. The inclined structure is also designed so that the hardness of the upper member is smaller than that of the lower member. Furthermore, this inclined structure is advantageous in such a way that a deformable member is further arranged to induce shear deformation along the sloping surfaces between the upper and lower member separately. Here, the deformable member is disposed in a rest area that is excluded a certain distance from the two ends of the front and the rear side in a longitudinal direction of the shoe. 
         [0015]    Further, the inclined structure is an arch shape that corresponds to curvature of the center of the sole of a human. 
         [0016]    Furthermore, the inclined structure is advantageous in such a manner that the inclination is increased the tilt surfaces of the front to the rear in the longitudinal direction of the shoe. 
         [0017]    The said inclined structure is advantageously designed so that a lowermost portion of the sloping surfaces being formed in the width direction is formed in an inside of the said sole to wear a person with O-shaped knee. 
         [0018]    In addition, the said inclined structure is advantageously designed so that a lowermost portion of the sloping surfaces being formed in the width direction is formed in an outside of the said sole to wear a person with X-shaped knee. 
         [0019]    Further, the inclined structure is advantageously designed so that an inner edge of the sole is formed toward an outer edge, or vice versa, the outer edge thereof is tilted toward the inner edge with a certain angle in order to form a cross section in the width direction of the sole with reverse trapezoidal shape. The angle of inclination is formed at the edge of the inner and outer edge of the sole which the lowermost part of the sloping surfaces is formed with the range of 0°&lt;α≦60°. 
         [0020]    In another category, the object of the invention can be achieved by a knee joint-protecting shoe, which is characterized in that the said shoe has the aforementioned sole. 
         [0021]    The said knee joint-protecting shoes are designed so that it has an insole that is formed with the same structure as the tilted structure of the sole. 
         [0022]    According to another category, the object of the invention can be achieved by a knee joint protective shoe, which is characterized in that, at the shoe including the insole, the said insole has the aforementioned inclined structure. 
       ADVANTAGEOUS EFFECTS OF THE INVENTION 
       [0023]    According to the invention, there is an effect which the pain of degenerative osteoarthritis of knee joint can be alleviated, and the incidence of knee arthritis can be prevented early by distributing evenly the knee distracting impacting load. 
         [0024]    Furthermore, an effect is achieved in which an alignment of the legs of a person with O- and X-legs can be corrected to the orientation of the skeletons of the normal leg since this person can select a sole suitable for its own legs and wear the shoe being applied the said sole. Accordingly, it is ensured that the form of false legs can be corrected, so that upright walking posture and proper body structure can be established. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0025]    The above and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention in conjunction with the accompanying drawings for understanding of technical ideas of the present invention, and hence, the present invention will not be restricted to the drawings. 
           [0026]      FIG. 1  is the front view showing an alignment of a right leg of the O-shaped knee. 
           [0027]      FIG. 2  is the front view showing an alignment of a right leg of the X-shaped knee. 
           [0028]      FIG. 3  is the rear view of the shoes of the prior art which are worn by a person with an alignment of the skeletons of the abnormal legs or the degenerative osteoarthritis of knee joint. 
           [0029]      FIG. 4  is the sectional view in the width direction of the shoe according to the first embodiment of the invention, which is worn by a person with O-shape knee. 
           [0030]      FIG. 5  is an exploded-sectional view of the sole according to the second embodiment of the invention. 
           [0031]      FIG. 6  is the rear view of the shoe according to the second embodiment of the invention, which is worn by a person with O-shape knee. 
           [0032]      FIG. 7  is the rear view of the shoe according to a third embodiment of the invention. 
           [0033]      FIG. 8  is a rear view of a state in which a person with O-shaped knee is wearing a shoe illustrated in  FIG. 7  and goes on foot. 
           [0034]      FIG. 9  is the perspective view of the sole for a person with O-shape knee according to a fourth embodiment of the invention. 
           [0035]      FIG. 10  is the bottom view of the sole for a person with O-shape knee according to a fourth embodiment of the invention. 
           [0036]      FIG. 11  is the left lateral view of the sole according to  FIG. 10 . 
           [0037]      FIG. 12  is the right lateral view of the sole according to  FIG. 10 . 
           [0038]      FIG. 13  is the sectional view along line A-A of  FIG. 10 . 
           [0039]      FIG. 14  is the perspective view of the lower member according to the fifth embodiment of the invention 
           [0040]      FIG. 15  is the bottom view of the sole for a person with O-shape knee according to a fifth embodiment of the invention. 
           [0041]      FIG. 16  is the left lateral view of  FIG. 15 . 
           [0042]      FIG. 17  is the right lateral view of  FIG. 15 . 
           [0043]      FIG. 18  is the sectional view along line B-B of  FIG. 15 . 
           [0044]      FIG. 19  is the sectional view along line C-C of  FIG. 15 . 
           [0045]      FIG. 20  is the sectional view along line D-D of  FIG. 15 , 
           [0046]      FIG. 21  is the left lateral view of the sole according to a variant form of the present invention. 
           [0047]      FIG. 22  is the sectional view in the width direction of the shoe manufactured by the sixth embodiment of the invention. 
           [0048]      FIG. 23  is the sectional view in the width direction of the shoe manufactured by the seventh embodiment of the invention. 
           [0049]      FIG. 24  is the sectional view in the width direction of the shoe manufactured by the eighth embodiment of the invention. 
           [0050]      FIG. 25  is the longitudinal section view of the knee joint-protecting shoe including insole in accordance with the ninth embodiment of the invention. 
           [0051]      FIG. 26  is the longitudinal section view of the knee joint-protecting shoe including insole in accordance with the tenth embodiment of the invention. 
       
    
    
     EXPLANATION OF ESSENTIAL REFERENCE NUMERALS IN DRAWINGS 
       [0000]    
       
           1 : Orientation of the legs of a person with bow legs. 
           3 : Center of a femoral head. 
           5 : Center of an ankle bone. 
           7 : Center of the knee. 
           9 : Orientation of the legs of a person with knock knees. 
           10 : Shoes according to the prior art. 
           12 : Shell of the shoes according to the prior art. 
           14 : Sole according to the prior art. 
           50 : Mechanical axis. 
           70 : Inclined axis 
           100 ,  200 ,  700 ,  800 : Shoe 
           100   a ,  200   a : Inside edge 
           100   b ,  200   b : Outer edge 
           100   c : Top. 
           100   d : Bottom. 
           110 ,  210 ,  710 ,  810 : Shell. 
           120 ,  220 ,  320 ,  420 ,  720 ,  820 : Sole. 
           122 ,  322 ,  422 : Upper member. 
           123 ,  323 ,  423 : Deformable Member. 
           123   a ,  123   b ,  323   a ,  323   b ,  423   a ,  423   b : Tilt surface. 
           124 ,  324 ,  424 : Lower member. 
           250 ,  750 ,  850 : Insole. 
           252 ,  752 ,  852 : Upper member of an insole. 
           253 ,  753 ,  853 : Deformable member of an insole. 
           253   a ,  253   b ,  753   a ,  753   b ,  853   a ,  853   b : Tilt surface of an insole. 
           254 ,  754 ,  854 : Lower member of an insole. 
           500 : Ground. 
           600 : Feet (a human). 
       
     
       DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0080]    One described in the present invention, the term of “Genu Varum” means the legs being bended toward the outside with O-shaped which two knees are not contacted each other when standing with two legs together, and is generally called with O-shape knee, bow legs. On the contrary, the term of “Genu valgum” means the legs in which the two legs are bent from the knee joint in the direction of the outside when standing with two legs together, and is generally called with X-shape knee, knock-knees. 
         [0081]    In addition, as described one in the present invention, person with bow legs covered all person who the alignment of the skeletons of legs is formed with O-shaped from congenital factors, or deformed with O-shaped from learned factors, and a pain in the inside of the knee have. Also person with the knock-knees covered all person who the alignment of the skeletons of legs is formed with X-shaped from congenital factors, or deformed with X-shaped from learned factors, and a pain in the outside of the knee have. 
         [0082]    The following are the preferred embodiments of the invention in reference to the accompanying drawings in more detail. 
       Structure of a Sole 
     First Embodiment 
       [0083]      FIG. 4  is the sectional view in the width direction of the shoe according to the first embodiment of the invention, which is worn by a person with O-shape knee, bow legs. As shown in  FIG. 4 , a shoe  100  includes the sole  120  and the upper leather  110 , and the sole  120  of the shoe  100  is formed as an inclined structure in that it comprises an upper member  122  and a lower member  124  wherein the said two parts  122  and  124  be formed by the tilt surface  123   a  being split in the width direction. According to the present invention, the sole  120  of the inclined structure is made such that the tilt surface  123   a  is formed to be tilted toward the inside or outside of the shoe  100  according to an alignment of the skeletons of the lower limbs of the person wearing the shoe  100 . 
         [0084]    Here, the top  100   c  and the bottom  100   d  of the sole  120  are formed parallel to each other. Furthermore, the lower member  124  is made of a material with hard grade hardness than the material of the upper member  122 . 
         [0085]    As shown in  FIG. 4 , the sole  120  is made such that a lowermost portion of the tilt surface  123   a  is formed in an inner side of the sole  120 , so that the shoes are worn with a person with a bow legs. Namely, If you wear the shoe  100  with the sole  120  and go on foot, the amount of deformation of inner side of the upper member  122  in which the lowermost part of the tilt surface  123   a  is arranged is larger than the one of outer side of the upper member  122 , because the hardness of the upper member  122  is smaller than the lower member of the  124 . Consequently, the foot is naturally inclined to the inside of the sole  120 . Therefore, with wearing the shoe  100  and going on foot continuously, the foot is tilted to the inside of the sole  120  so that the bow leg is allowed to be corrected. 
         [0086]    Contrary to the view of  FIG. 4 , the sole  120  are also advantageously prepared such that the lowermost part of the tilt surface  123   a  is formed in an outer side of the sole  120  in order to wear the shoes having this sole  120  with a person with X-shape knee. As being mentioned above, the amount of deformation of the outer side of the upper member  122  in which the lowermost part of the tilt surface  123   a  is arranged is larger than the one of inner side of the upper member  122 , because the hardness of the upper member  122  is smaller than the lower member of the  124 . If a person with X-shape knee wears the shoe  100  with the sole  120  and goes on foot, the foot is naturally inclined to the outside of the sole  120  so that the X-shape knee is allowed to be corrected. Furthermore, the concentrated load at to the outside of the knee is uniformly distributed to the entire knee, so that the degenerative osteoarthritis of knee joint is prevented and their symptoms can be alleviated. 
       Second Embodiment 
       [0087]      FIG. 5  is an exploded-sectional view of the sole according to the second embodiment of the invention. As shown in  FIG. 5 , a sole  120  is advantageously made such that a top surface  100   c  and a bottom surface  100   d  of the sole are formed parallel to each other and a deformable member  123  for inducing shear deformation along the sloping surfaces  123   a  and  123   b  is arranged between a upper member  122  and a lower member  124  to form an inclined structure. In this case, the deformable member  123  is constructed with a same inclination as in the tilt surfaces  123   a  and  123   b , which divide the upper member  122  and lower member  124 . Namely, the shear deformation of deformable member  123  is induced in the direction of the tilt surfaces  123   a  and  123   b  by force being exerted from the top surface of the sole  120 , thereby acting a moment to the foot of the person wearing with the shoe  100  toward the inner or outer side while sliding the upper member  122  in the direction of the tilt surfaces  123   a  and  123   b , so that the orientation of the skeletons of the anomalously deformed legs are corrected to normal. Here, the deformable member  123  is made from a material such as gel type synthetic resin, rubber, silicon, ethylene vinyl acetate. (EVA), polyurethane (PU), chloroprene rubber (CR) or neoprene and the like, which is deformable flexibly according to the pressure loaded on the upper member  122 , so that the shear deformation of deformable member  123  is happen in the direction of the tilt surface  123 . 
         [0088]      FIG. 6  is the rear view of the shoe according to the second embodiment of the invention, which is worn by a person with O-shape knee. As shown in  FIG. 6 , a deformable member  123  is inclined in such a manner that the upper member  122  can slide in the inner side of the sole  120 , so that a person with bow legs can wear the shoe having the said sole  120 . Here, the top  100   c  and the bottom  100   d  of the sole  120  are parallel to each other. 
         [0089]    If a person with a bow leg wear the shoe  100  having the sole  120  according to the present invention and goes on foot on the ground  500 , the upper member  122  may be slid toward the inside of the sole  120  by means of the applied force from above and the deformable member  123  being capable of deformation flexibly. The upper member  122  and the deformable member  123 , which is illustrated with an imaginary line, may be deformed as a representation with a solid line. Furthermore, there is an eversion moment which rotates the shin to the direction of an outer side of the body of the person, while the foot  600  of the person with knock knee slides in the inside of the sole  120  by the deformation of deformable member  123 . 
         [0090]    Through this eversion moment, the distance between the right and the left knee of the person with bow legs is reduced so that these legs are to be corrected with “11”-shaped. Furthermore, the concentrated load at to the inside of the knee is uniformly distributed to the entire knee, so that the degenerative osteoarthritis of knee joint is prevented and their symptoms can be alleviated. 
         [0091]    Contrary to the  FIG. 6 , the deformable member  123  is inclined such a manner that the upper member  122  can be slid into the outer side of the sole  120 , so that a person with X-shape knee can wear the shoes having this sole  120 . Namely, if a person with knock knees wear the shoe  100  having the sole  120  according to the present invention and goes on foot on the ground  500 , the upper member  122  may be slid toward the outside of the sole  120  by means of the applied force from above and the deformable member  123  being capable of deformation flexibly. Furthermore, there is an adduction moment which rotates the shin to the direction of an inner side of the body of the person, while the foot  600  of the person with bow leg slides in the outside of the sole  120  by the deformation of deformable member  123 . 
         [0092]    Through this adduction moment, the distance between the right and the left knee of the person with X-shape knee is increased so that these legs are to be corrected with “11”-shaped. Furthermore, the concentrated load at to the outside of the knee is uniformly distributed to the entire knee, so that the degenerative osteoarthritis of knee joint is prevented and their symptoms can be alleviated. 
       Third Embodiment 
       [0093]      FIG. 7  is the rear view of the shoe according to a third embodiment of the invention, and  FIG. 8  is a rear view of a state in which a person with O-shaped knee is wearing a shoe illustrated in  FIG. 7  and goes on foot. As shown in  FIGS. 7 and 8 , the inclined structure is designed such that an inner edge  100   a  of the sole  120  is formed toward an outer edge  100   b , or vice versa, the outer edge  100   b  thereof is tilted toward the inner edge  100   a  with a certain angle α in order to form a cross section in the width direction of the sole  120  with reverse trapezoidal shape. The angle of inclination α is formed at the edge of the sole  120  which the lowermost part of the sloping surfaces  123   a  and  123   b  is formed with the range of 0°&lt;α≦60°. 
         [0094]    As shown in  FIG. 7 , the sole  120  which consists of the upper member  122 , the deformable member  123  and the lower member  124  makes it possible for person with bow legs to wear the shoes having this sole  120  which the lowest part of the sloping surfaces  123   a  and  123   b  is formed at the inner side of the sole  120  by tilting the inner edge  100   a  with the tilt angle α relative to the outer edge  100   b  when placing the shoe  100  on the ground  500 . A section in the width direction of the sole  120  has a reverse trapezoidal shape. The angle of inclination α can be regulated according to the bending degree of O-shape knee. If the angle of inclination α exceeds 60°, the change in direction on the inside of the sole  120  may be even stronger, so it is advantageous that the angle of inclination does not exceed 60°. According to the present invention, the sole  120  is designed such that the angle of inclination α is 15°. As shown in  FIG. 8 , the inner edge  100   a  of the sole  120  is formed with the angle of inclination α relative to the outer edge  100   b  so that the center of gravity for the upper member  122  and the lower member  124  does not match. Therefore, the upper member  122  is slid into inside of the sole  120  toward the direction of the tilt surfaces  123   a  and  123   b  of the deformable member  123  to occur deformation. Namely, the upper member  122  slides in the direction of the tilt surfaces  123   a  and  123   b  of the deformable member  123  and hence the foot  600  of the person with bow legs is slid into the inside of the sole  120  so that the orientation of the skeletons of the abnormal legs can be corrected. 
         [0095]    Contrary to the  FIG. 7 , the sole  120  which consists of the upper member  122 , the deformable member  123  and the lower member  124  makes it possible for person with knock knees to wear the shoes having this sole  120  which the lowest part of the sloping surfaces  123   a  and  123   b  is formed at the outer side of the sole  120  by tilting the outer edge  100   b  with the predetermined tilt angle α relative to the inner edge  100   a  when placing the shoe  100  on the ground  500 . Here, the angle of inclination α is to the range of 0°&lt;α≦60° and a section in the width direction of the sole  120  has a reverse trapezoidal shape. If the angle of inclination α exceeds 60°, the change in direction on the outside of the sole  120  may be even stronger, so it is advantageous that the angle of inclination does not exceed 60°. 
         [0096]    Contrary to the  FIG. 7 , the outer edge  100   b  of the sole  120  is formed with the angle of inclination α relative to the inner edge  100   a  so that the center of gravity for the upper member  122  and the lower member  124  does not match. Therefore, the upper member  122  is slid into outside of the sole  120  toward the direction of the tilt surfaces  123   a  and  123   b  of the deformable member  123  to occur deformation. Namely, the upper member  122  slides in the direction of the tilt surfaces of the deformable member  123  and hence the foot  600  of the person with knock knees is slid into the outside of the sole  120  so that the orientation of the skeletons of the abnormal legs can be corrected. 
         [0097]    The sole  120  designed according to the present invention can correct the orientation of the skeletons of the abnormal legs normally, and evenly distribute the concentrated load applied to only one portion of the knee joint so that the degenerative osteoarthritis of knee joint is prevented and the pain can be alleviated. 
         [0098]    If the angle of inclination α as the third embodiment according to the invention is applied to the first embodiment, a sole  120  with an inverted trapezoidal section also can be designed. 
       Fourth Embodiment 
       [0099]      FIG. 9  is the perspective view of the sole for a person with O-shape knee according to a fourth embodiment of the invention,  FIG. 10  is the bottom view of the sole for a person with O-shape knee according to a fourth embodiment of the invention,  FIG. 11  is the left lateral view of the sole according to  FIG. 10 , and  FIG. 12  is the right lateral view of the sole according to  FIG. 10 . As shown in  FIGS. 9 to 12 , the sole according to the fourth embodiment of the present invention consists of an upper member  322 , a lower member  324  and a deformable member  323  arranged between the upper member  322  and lower member  324 . 
         [0100]    The sole  320  according to the fourth embodiment of the present invention, as shown in  FIGS. 9 to 12 , designed such that on one side of a bottom of the sole  320 , an arc-shaped dome is arranged with a shape that corresponds to the arc-part being at the middle of the man&#39;s sole. It is advantageous that this arc-shaped dome is located at one side of the center of the shoe, preferably at one place where corresponds to the arc-part being at the man&#39;s sole.  FIG. 13  is the sectional view along line A-A of  FIG. 10 , and  FIG. 14  is the perspective view of the lower member according to the fourth embodiment of the invention. The lower member  324  of the fourth embodiment of the present invention as shown in  FIGS. 13 and 14  is designed such that its base is generally parallel to the ground and its top has arcuate shape along with a longitudinal direction of a sole  320 . Furthermore, the tilt surfaces  323   a  and  323   b  is formed to be higher one side of the inside or outside than the other side in the width direction, as shown in  FIG. 13 . 
         [0101]    Such tilt surfaces  323   a  and  323   b  is formed such that one side of the inside or outside is higher than the other side according to an orientation of the skeleton of the legs of a person wearing the shoes. In one embodiment, the ratio of the height H 1  of the inside to the height H 2  of the outside in the width direction of the sole  320  is 1:1.5 to 1:2. Namely, if the height H 1  of the inside is 1 cm, the height H 2  of the outer side is 1.5 cm to 2 cm. Here, the direction and height of tilt surfaces  323   a  and  323   b  may be varied in accordance with the orientation of the skeletons of legs and the pain of the knee of the person wearing the shoes. In addition, the lower member  324  is made of a material with a greater degree of performing a hard hardness than the material of the upper member  322 . 
         [0102]    As shown in  FIGS. 13 and 14 , the sole  320  is made such that a lowermost portion of the tilt surface  323   b  of the lower member  324  is formed in an inner side of the sole  320 , so that the shoes are worn with a person with a bow legs. Namely, If you wear the shoe with the sole  320  and go on foot, the amount of deformation of inner side of the sole  320  in which the lowermost part of the tilt surface  323   a  and  323   b  is arranged is larger than the one of outer side, because the overall hardness of the upper member  322  is smaller than the lower member of the  324 . Consequently, the foot is naturally inclined to the inside of the sole  320 . Therefore, with wearing the shoe having the sole  320  according to the present invention and going on foot continuously, the knee and the foot are tilted to the inside of the body so that the bow leg is allowed to be corrected. 
         [0103]    On the other hand, it is envisaged that the lowest part of the tilt surface  232   b  of the lower member  324  may be formed at the outer side of the sole  320  in order to wear it with a person with knock knee, thereby being tilted the feet of the person wearing the shoes toward the outside of the sole  320  according to the same principle with the said sole  320  for the person with bow legs. 
         [0104]    With the sole  320  having the above construction, the O- and X-shape knee can be corrected, and the load focused on the inside or the outside of the knee is distributed over the entire knee, so that degenerative osteoarthritis of knee joint is prevented and their symptoms can be alleviated. 
         [0105]    The deformable member  323  according to the fourth embodiment of the present invention causes a shear deformation forward inclined direction of the tilt surfaces  323   a  and  323   b . In this case, the deformable member  323  is constructed with a same inclination as in the tilt surfaces  323   a  and  323   b , which divide the upper member  322  and lower member  324 . Namely, the deformable member  323  is slid along with the tilt surfaces  323   a  and  323   b  by force being exerted from the top surface of the sole  320 , thereby acting a moment to the foot of the person wearing with the shoe toward the inner or outer side while sliding the upper member  322  in the direction of the tilt surfaces  323   a  and  323   b , so that the orientation of the skeletons of the anomalously deformed legs are smoothly corrected to normal. The materials of such deformable member  323  may be selected from gel type synthetic resin, rubber, silicon, ethylene vinyl acetate, polyurethane or chloroprene rubber, and the like. 
         [0106]    As shown in  FIG. 13 , for more smoother correct, the sole  320  having the abovementioned construction is designed such that an inner edge of the sole  320  is formed toward an outer edge, or vice versa, the outer edge thereof is tilted toward the inner edge with a certain angle α in order to form a cross section in the width direction of the sole  320  with reverse trapezoidal shape. The angle of inclination α may preferably be in the range between 0° and 60°. This angle of inclination α can be varied according to the condition of the knee and the pain of a person wearing the shoes. However, it is more advantageous that the angle of inclination α is 10° to 20°. If the angle of inclination exceeds 60°, the change of the sole  320  are even stronger, so it is advantageous that the angle of inclination α does not exceed 60°. 
         [0107]    To wear the shoe with a person with O-shape knee, as shown in  FIG. 13 , the bottom of inner edge is offset relative to the outer edge with the angle of inclination α so that the center of gravity of the upper member  322  the lower member  324  is not matched, thereby the sole  320  more easily sliding to the inside of the body by the shear deformation of deformable member  323 , so the O-shape knee can be corrected. 
         [0108]    Further, the bottom of outer edge is offset relative to the inner edge by the angle of inclination α to put on it with a person having X-shape knee, contrary to the  FIG. 13 . Being formed the slope in this way, the center of the body slides to the outside of the body when walking, so the knock-knees can be corrected. 
       Fifth Embodiment 
       [0109]      FIG. 15  is the bottom view of the sole for a person with O-shape knee according to a fifth embodiment of the invention,  FIG. 16  is the left lateral view of  FIG. 15 , and  FIG. 17  is the right lateral view of  FIG. 15 . As shown in  FIGS. 15 to 17 , the sole  420  according to the fifth embodiment of the present invention consists of an upper member  422 , a lower member  424  and a deformable member  423  arranged between the upper member  422  and lower member  424 . 
         [0110]      FIG. 18  is the sectional view along line B-B of  FIG. 15 ,  FIG. 19  is the sectional view along line C-C of  FIG. 15 , and  FIG. 20  is the sectional view along line D-D of  FIG. 15 . As shown in  FIGS. 18 to 20 , the sole  420  according to the fifth embodiment of the invention is formed with an inclined structure, which includes an upper member  422  and a lower member  424  formed by a deformable member  423  cleaved with width direction. According to the present invention, the sole  420  of the inclined structure is made such that the deformable member  423  is formed to slide to an inner or an outer side of the shoes depending on the orientation of the skeletons of the legs of a person wearing the shoes. 
         [0111]    It has a top and a bottom of the sole  420 , namely a top of the upper member  422  and a bottom of the lower member  424  are formed parallel to each other. Further, the lower member  424  is made of a material with a greater hardness than the material of the upper member  422 . 
         [0112]    According to  FIGS. 15 to 20 , the sole  420  is made such that a lowermost portion of the deformable member  423  is formed in an inner side of the sole  420  to enable a person with bow legs wearing the shoes produced from it. Therefore, if you wear the shoes having this sole  420  and goes on foot, the foot is naturally slid into an inside of the sole  420  because the amount of deformation of inner side of the upper member  422 , in which the lowest part of the deformable member  423  is arranged is larger than that of an outside of the upper member  422  due to the smaller hardness the upper member  422 . In one embodiment, the ratio of the height H 3  of the inside to the height H 4  of the outside in the width direction of the sole  420  is 1:1.5 to 1:2. Namely, if the height H 3  of the inside is 1 cm, the height H 4  of the outer side is 1.5 cm to 2 cm. If you keep on this way with the shoes and goes on foot, the foot is tilted to the inside of the sole  420 , so that the bow-leg to be corrected. To increase the effect of correcting the legs, it is also advantageous that the inclination of the tilt surfaces  423   a  and  423   b  can be increased from the front to the rear in the longitudinal direction of the shoe. But it is obvious that the inclination of the front can still change bigger according to a level of the bent legs and a knee pain. 
         [0113]    On the other hand, it is envisaged that the lowest part of the deformable member  423  may be formed at the outer side of the sole  420  in order to wear it with a person with knock knee, thereby being tilted the feet of the person wearing the shoes toward the outside of the sole  420  according to the same principle with the said sole  420  for the person with bow legs. 
         [0114]    With the sole  420  having the above construction, the O- and X-shape knee can be corrected, and the load focused on the inside or the outside of the knee is distributed over the entire knee, so that degenerative osteoarthritis of knee joint is prevented and their symptoms can be alleviated. 
         [0115]    The deformable member  423  according to the fifth embodiment of the present invention is arranged between the upper member  422  and lower member  424  to cause a shear deformation forward inclined direction of the deformable member  423 . Here, the deformable member  423  disposed in a rest area that is ruled by each of the two ends of the front and the rear side in a longitudinal direction of the shoe by a predetermined distance. The reason, in which the deformable member is positioned  423  in the remaining area, is to seek to ensure that a strain of the ankle and knee, caused by the fact that the feet are totally inclined to the inside or the outside, could be reduced. In this case, the deformable member  423  is constructed with a same slant as in the tilt surfaces  423   a  and  423   b , which split the upper member  422  and the lower member  424  of each other, wherein the deformable member  423  is disposed in a central region of the shoe which is excluded by 5% to 15% from each side of the ends of the front and the rear side in the longitudinal direction of the shoe. Namely, the deformable member is slid along with the inclined direction by force being exerted from the top surface of the sole  420 , thereby acting a moment to the foot of the person wearing with the shoe toward the inner or outer side while sliding along with the direction of the tilt surfaces, so that the orientation of the skeletons of the anomalously deformed legs are smoothly corrected to normal. Also, a strain of the ankle and knee can be reduced since the sliding part with the inclined direction is taken at the ends of the front and the rear side in the longitudinal direction of the shoe. The materials of such deformable member  423  may be selected from gel type synthetic resin, rubber, silicon, ethylene vinyl acetate, polyurethane, chloroprene rubber, and the like. 
         [0116]    As shown in  FIGS. 18 to 20 , for more smoother correct, the sole  420  having the abovementioned construction is designed such that an bottom of inner edge of the sole  420  is offset toward an outer edge, or vice versa, the bottom of outer edge thereof is offset toward the inner edge with a certain angle in order to form a cross section in the width direction of the sole  420  with reverse trapezoidal shape. 
         [0117]    The angle of inclination α may preferably be in the range between 0° and 60°. This angle of inclination α can be varied according to the condition of the knee and the pain of a person wearing the shoes. However, it is more advantageous that the angle of inclination α is 10° to 20°. If the angle of inclination exceeds 60°, the change of the sole  420  are even stronger, so it is advantageous that the angle of inclination α does not exceed 60°. To wear the shoe with a person with O-shape knee, as shown in  FIGS. 18 to 20 , the bottom of inner edge is offset relative to the outer edge with the angle of inclination α so that the center of gravity of the upper member  422  and the lower member  424  is not matched, thereby the sole  420  more easily sliding to the inside of the body by the shear deformation of deformable member  423 , so the O-shape knee can be corrected. 
         [0118]    Further, the bottom of outer edge is offset relative to the inner edge by the angle of inclination α to put on it with a person having X-shape knee, contrary to the  FIGS. 18 to 20 . Being formed the slope in this way, the center of the body slides to the outside of the body when walking, so the knock-knees can be corrected. 
       Variant Embodiment 
       [0119]      FIG. 21  is the left lateral view of the sole according to a variant form of the present invention. As shown in  FIG. 21 , a deformable member  323 ,  423  of a sole  320 ,  420  according to the present invention can be changed depending on a curvature form a sole of a person and a whole shape of a shoe, as well as a deformation and a health condition of the knee of the person. 
       &lt;Structure of Knee Joint-Protecting Shoes&gt; 
       [0120]    The invention provides a generic, preferably knee joint-protecting shoe which is advantageously constructed by connecting a sole  120  to  420  according to the first to the fifth embodiment to this sole with means of all types of adhesives or sewing, and the like. With wearing shoes made from the said method and going on foot, the O- or X-shape knee may be corrected to “II-shape” leg without any operation. 
         [0121]    The shoe for protecting a knee joint according to the present invention may further include a insole  250 ,  750  or  850 . In addition, the said insole  250 ,  750  or  850  is designed as follows: 
       Sixth Embodiment 
       [0122]      FIG. 22  is the sectional view in the width direction of the shoe manufactured by the sixth embodiment of the invention. As shown in  FIG. 22 , the shoe  200 , in which a sole  220  is attached to an underside of an leather  210  and the insole  250  is placed in the leather  210 , is preferably constructed such that the insole  250  contain an upper member  252  and a lower member  254 , these two parts are formed by a fissured tilt surface  253   a  in the width direction. Namely, the insole  250  is made as an equal inclined structure as in the first embodiment described at the above.  FIG. 22  shows a sectional view of the shoe for a person with O-shape, but the person with O- or X-shape knee can choose a suitable insole depending on a position of a bottom portion of the tilt surface  253   a , that is depending on whether this bottom part is formed in an inside or an outside of the shoe  200 . Furthermore, the hardness of the upper member  252  and the lower member  254  is different from each other as in the first embodiment. 
         [0123]    In this case, as the sole  220 , a generic sole or any sole  120 ,  320 ,  420 ,  720  or  820  according to the first through the fifth embodiment of the present invention may be used. 
       Seventh Embodiment 
       [0124]      FIG. 23  is the sectional view in the width direction of the shoe manufactured by the seventh embodiment of the invention. As shown in  FIG. 23 , an insole  250  is advantageously designed such that it additionally includes a deformable member  253 , which induces a shear deformation along the sloping surfaces  253   a  and  253   b  between the upper member  252  and the lower member  254 . Namely, the insole  250  is made as an equal inclined structure as in the second embodiment described at the above.  FIG. 23  shows a sectional view of the shoe for a person with O-shape, but the person with O- or X-shape knee can choose a suitable insole depending on a position of a bottom portion of the tilt surface  253   a  and  253   b , that is depending on whether this bottom part is formed in an inside or an outside of the shoe  200 . 
         [0125]    In this case, as the sole  220 , a generic sole or any sole  120 ,  320 ,  420 ,  720  or  820  according to the first through the fifth embodiment of the present invention may be used. 
       Eighth Embodiment 
       [0126]      FIG. 24  is the sectional view in the width direction of the shoe manufactured by the eighth embodiment of the invention. As shown in  FIG. 24 , the inclined structure is designed such that a bottom of inner edge  200   a  of the insole  250  is offset toward an outer edge  200   b , or vice versa, the bottom of outer edge  200   b  thereof is offset toward the inner edge  200   a  with a certain angle α in order to form a cross section in the width direction of the insole  250  with reverse trapezoidal shape. The angle of inclination α is formed at the edge which the lowermost part of the sloping surfaces  253   a  and  253   b  is formed with the range of 0°&lt;α≦60°. 
         [0127]    Namely, the insole  250  is made as an equal inclined structure including an angle of inclination α as in the third embodiment described at the above.  FIG. 24  shows a sectional view of the shoe for a person with O-shape, but the person with O- or X-shape knee can choose a suitable insole depending on a position of a bottom portion of the tilt surface  253   a  and  253   b , that is depending on whether this bottom part is formed in an inside or an outside of the shoe  200 . 
         [0128]    In this case, as the sole  220 , a generic sole or any sole  120 ,  320 ,  420 ,  720  or  820  according to the first through the fifth embodiment of the present invention may be used. It is also possible to form the insole  250  having an inverted trapezoidal section by applying the same angle of inclination α with the eighth embodiment of the invention to the sixth embodiment. 
       Ninth Embodiment 
       [0129]      FIG. 25  is the longitudinal section view of the knee joint-protecting shoe including insole in accordance with the ninth embodiment of the invention. The insole  750  according to the ninth embodiment of the invention includes the deformable member  753  to induce a shear deformation along with the upper member  752 , the lower member  754 , and the sloping surfaces  753   a  and  753   b  between the upper member  752  and the lower member  754  which is formed by the tilt surfaces splitted in the width direction. Namely, the insole  750  is made as an equal inclined structure with the inclined structure of the insole  320 ,  420  according to the fourth or the fifth embodiment described at the above. This inclined structure of the insole  750  may change with considering the light of the knee condition and pain level of a person wearing the shoes as diverse as that of the insole  320  or  420  according to the fourth or the fifth embodiment of the invention. 
         [0130]    With this insole  750  being formed to have the same inclined structure with the sole, it can be obtained the effect which the legs are correct, and prevent the degenerative knee arthritis and relieve their pain. 
         [0131]    In this case, as the sole  720  of the shoe  700  according to the ninth embodiment, a generic sole or any sole  320  or  420  according to the first through or fifth embodiment of the present invention may be used. 
         [0132]    Here, the non-described reference numeral  710  is a shell of a shoe. 
       Tenth Embodiment 
       [0133]      FIG. 26  is the longitudinal section view of the knee joint-protecting shoe including insole in accordance with the tenth embodiment of the invention. The insole  850  according to the tenth embodiment of the invention, as seen in  FIG. 26 , includes the deformable member  853  to induce a shear deformation along with the upper member  852 , the lower member  854 , and the sloping surfaces  853   a  and  853   b  between the upper member  852  and the lower member  854  which is formed by the tilt surfaces splitted in the width direction, with the same inclined structure as that of the insole  850  according to the ninth embodiment. Also, the insole  850  is designed such that a bottom of inner edge of the sole  850  is offset toward an outer edge, or vice versa, the bottom of outer edge thereof is offset toward the inner edge with a certain angle α in order to form a cross section in the width direction of the sole  850  with reverse trapezoidal shape. The angle of inclination α may preferably be in the range between 0° and 60° such as the sole  320  according to the fourth embodiment or the sole  420  according to the fifth embodiment. This angle of inclination α can be varied according to the condition of the knee and the pain of a person wearing the shoes  800 . However, it is more advantageous that the angle of inclination α is 10° to 20°. If the angle of inclination exceeds 60°, the change of the sole  850  are even stronger, so it is advantageous that the angle of inclination α does not exceed 60°. 
         [0134]    In this case, as the sole  820  of the shoe  800  according to the tenth embodiment, a generic sole or any sole  320  or  420  according to the first through or fifth embodiment of the present invention may be used. 
         [0135]    Here, the non-described reference numeral  810  is a shell of a shoe. 
         [0136]    As mentioned above, it is quite understandable for a person of ordinary skill of the present invention that the invention can be carried out without changing the essential features and technical ideas in a different concrete form. Therefore, it must be understood that the above-mentioned embodiments are merely way of example, and thus the present invention is not limited thereto. It must also be interpreted that the scope of the present invention is not limited by the foregoing description but only by the below described patent claims.