Footwear

Abstract

Footwear 1 having a strap 30 comprising a front strap portion 31 interposed between a big toe and an index toe, and a side strap portion 32 put on a top of foot, and a footbed 20 which the strap 30 is attached to and a foot is mounted on. The footbed 20 has a removal portion 20 c obtained by removing a site being closer to the outside as seen from a front strap portion 31 while closer to toes as seen from a region which a heel of a user is mounted on. In a state wherein a user wears footwear 1 , a removal portion 20 c is opposed to a middle toe, a ring toe, a little toe and their base parts, an adductor hallucis transverse head part lying closer to a heel than the base parts do, and an arch-of-foot lateral part in flexor digitorum brevis muscles.

What is claimed is: 
     
         1 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a heel portion on which to mount a heel of a user, and a removal portion obtained by removing a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said heel portion, and   wherein the removal portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user.   
     
     
         2 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a heel portion on which to mount a heel of a user and a thin portion obtained by decreasing, in thickness, a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said heel portion, and   wherein the thin portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, but is not opposed to a part lying closer to a big toe than said front strap portion does.   
     
     
         3 . Footwear according to  claim 1 ,
 wherein said footbed has further a heel removal portion obtained by removing a heel part.   
     
     
         4 . Footwear according to  claim 2 ,
 wherein said footbed has a vertical two-layer structure,   wherein an upper layer which is one layer of the two-layer structure is in a shape made by forming a foot circumference while providing no removal portion, and   wherein a lower layer which is another layer of the two-layer structure has a heel portion on which to mount a heel of a user, and a removal portion obtained by removing a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said heel portion.   
     
     
         5 . Footwear according to  claim 2 ,
 wherein said footbed has a vertical two-layer structure,   wherein a lower layer which is one layer of the two-layer structure is in a shape made by forming a foot circumference while providing no removal portion, and   wherein an upper layer which is another layer of the two-layer structure has a heel portion on which to mount a heel of a user, and a removal portion obtained by removing a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said heel portion.   
     
     
         6 . Footwear according to  claim 4  or  5 ,
 wherein said footbed further has a heel removal portion obtained by removing a heel part. 
 
     
     
         7 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a recess portion on its reverse surface,   wherein the recess portion is opposed through a bottom portion of said recess portion to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, and   wherein said bottom portion has flexibility.   
     
     
         8 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a vertical two-layer structure,   wherein an upper layer which is one layer of the two-layer structure has a first removal portion obtained by removing a site opposed to a heel of a user and a second removal portion obtained by removing a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said first removal portion,   wherein a lower layer which is another layer of said two-layer structure is made of material more flexible than said upper layer is, and is in a shape made by forming a foot circumference while providing said upper layer with neither said first removal portion nor said second removal portion,   wherein said second removal portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, and   wherein a level-difference part formed by an upper surface of said upper layer and an upper surface of said lower layer in said second removal portion is provided with a slant.   
     
     
         9 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a vertical two-layer structure,   wherein an upper layer which is one layer of the two-layer structure has a first removal portion obtained by removing a site opposed to a heel of a user and a second removal portion obtained by removing a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said first removal portion,   wherein a lower layer which is another layer of said two-layer structure is in a shape made by forming a foot circumference while providing said upper layer with neither said first removal portion nor said second removal portion,   wherein said second removal portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, and   wherein a level-difference part formed by an upper surface of said upper layer and an upper surface of said lower layer in said second removal portion, and an end portion closer to toes on a reverse surface of said footbed are provided with a slant.   
     
     
         10 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on, and
 wherein a region opposed to a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, on said footbed is more flexible than another region.   
     
     
         11 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a first recess portion opposed to a heel of a user and a second recess portion opposed to a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said first recess portion,   wherein said second recess portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, and   wherein a reverse surface of an end portion closer to toes of said footbed is provided with a slant inclined to a big toe of the user.   
     
     
         12 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a recess portion on its reverse surface,   wherein the recess portion is opposed through a bottom portion of said recess portion to at least a big toe, an index toe and their base parts, of a user, and   wherein said bottom portion has flexibility.   
     
     
         13 . Footwear having a footbed which a foot is mounted on, a first belt-like member which is attached to the footbed in an arch-like shape so that a big toe can be inserted thereinto, and a second belt-like member which is attached to the footbed, on a side closer to a heel as seen from said first belt-like member, in an arch-like shape so that a top of foot can be inserted thereinto,
 wherein said footbed has a vertical two-layer structure,   wherein an upper layer which is one layer of the two-layer structure has a first removal portion obtained by removing a site opposed to a heel of a user and a second removal portion obtained by removing a site being closer to a little toe as seen from said first belt-like member while closer to toes as seen from said first removal portion,   wherein a lower layer which is another layer of said two-layer structure is made of material more flexible than said upper layer is, and is in a shape made by forming a foot circumference while providing said upper layer with neither said first removal portion nor said second removal portion, and   wherein said second removal portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of the user.   
     
     
         14 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a first recess portion and a second recess portion on its reverse surface,   wherein said first recess portion is opposed through a bottom portion of the first recess portion to a heel of a user,   wherein said second recess portion is opposed through a bottom portion of the second recess portion to a big toe, an index toe and their base parts, of the user, and   wherein bottom portions of said first recess portion and second recess portion have flexibility.   
     
     
         15 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a gap portion extending toward a big toe from a thickness-direction medial portion on a side surface closer to a little toe as seen from said front strap portion, and   wherein the gap portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user.   
     
     
         16 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a vertical two-layer structure,   wherein an upper layer which is one layer of the two-layer structure has a first block on which said front strap portion is placed, and a second block on which a termination portion of said side strap portion is placed,   wherein a lower layer which is another layer of said two-layer structure is made of material more flexible than said upper layer is, and is in a shape made by forming a foot circumference,   wherein a first recess portion is formed between said first block and said second block while a second recess portion which a heel of a user is opposed to is formed closer to the heel as seen from said second block, and   wherein said first recess portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of the user.   
     
     
         17 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed has a vertical two-layer structure,   wherein an upper layer which is one layer of the two-layer structure has a first removal portion obtained by removing a site opposed to a heel of a user, and a second removal portion obtained by removing a site being closer to a little toe as seen from said front strap portion while closer to toes as seen from said first removal portion,   wherein a lower layer which is another layer of said two-layer structure is made of material more flexible than said upper layer is, and is in a shape made by forming a foot circumference while providing said upper layer with neither said first removal portion nor said second removal portion,   wherein said second removal portion is opposed to at least a middle toe, a ring toe, a little toe and their base parts, as well as an adductor hallucis transverse head part lying closer to a heel than the base parts do, of a user, and   wherein an end portion closer to toes and an end portion closer to a heel, on a reverse surface of said footbed are provided with slants, respectively.   
     
     
         18 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on, and
 wherein said footbed comprises a flat plate member and has a removal portion obtained by removing a site opposed to a heel of a user.   
     
     
         19 . Footwear having a strap comprising a front strap portion interposed between a big toe and an index toe, and a side strap portion put on a top of foot, and a footbed which the strap is attached to and a foot is mounted on,
 wherein said footbed comprises a flat plate member and has a recess portion on a site opposed to a heel of a user, and   wherein an end portion closer to toes on a reverse surface of said footbed is provided with a slant.