US2012025480A1PendingUtilityA1

Size-adjustable footwear

Assignee: KWOK CHUN LUNGPriority: Feb 2, 2009Filed: Jul 28, 2009Published: Feb 2, 2012
Est. expiryFeb 2, 2029(~2.5 yrs left)· nominal 20-yr term from priority
Inventors:Chun Lung Kwok
A43B 13/38A43B 3/26A43B 5/1608A43B 17/16
27
PatentIndex Score
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Cited by
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References
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Claims

Abstract

Size-adjustable footwear includes a body in which first and second insoles are received, the insoles being nested together and one upon another with both extending to generally cover the length and width of the sole of the footwear body. A first insole has a re-entrant section for partially enclosing at least part of the periphery of the forefoot of a wearer and includes a first toe cap, and lateral and medial flanges integral with the first toe cap. The second upper insole includes a reentrantly shaped second toe cap and a heel cup in which a first longitudinal dimension, between the heel cup and the second toe cap, defines a first size, and a second longitudinal dimension, between the body heel and the first toe cap, defines a second size larger than the first size. A user may select footwear based on the smaller first size, and then remove the first and then the second insole to accommodate growth of the feet.

Claims

exact text as granted — not AI-modified
1 . Size-adjustable footwear for a wearer, the footwear comprising:
 a body having a body heel, a body sol; and a body upper; and   first and second insoles removably received within the body, each of the first and second insoles comprising integral sections including a forefoot-supporting section, a midfoot-supporting section, and a heel-supporting section, wherein   the forefoot-supporting section of the first insole has a reentrant form for partially enclosing at least a peripheral part of the wearer's forefoot and including a first toe cap at a tip; of the forefoot-supporting section of the first insole,   the midfoot-supporting section of the first insoles has a non-reentrant form including opposing first medial and first lateral edges, and a first arch-supporting portion with a concave convex inner side for facing the wearer's arch,   the heel-supporting section of the first insole includes a reentrantly shaped heel cup to partially enclose the wearer's heel,   the forefoot-supporting section of the second insole has a reentrant form with an integral second toe cap at a tip of the forefoot-supporting section of the second insole,   the midfoot-supporting section of the second insole has a non-reentrant form including opposing second medial and second lateral edges, and a second arch-supporting portion with a concave convex inner side for facing the wearer's arch,   the heel-supporting section of the second insole has a non-reentrant form with an arcuate peripheral edge, the first and second insoles generally overlie one another,   one of the first and second insoles generally overlies the body sole of one of the first and second insoles,   the first and second toe caps are complementary to one another, and   one of the first and second toe caps is received within the other of first and second toe caps.   
     
     
         2 . The footwear of  claim 1  wherein
 the first insole generally overlies the second insole, and 
 the second insole generally overlies the body insole of the first insole, 
 a first longitudinal dimension between the heel cup and the second toe cap defines a first size and 
 a second longitudinal dimension between the heel cup and the first toe cap defines a second size, larger than the first size. 
 
     
     
         3 . The footwear of  claim 1  wherein the forefoot-supporting section of the first insole further includes lateral and medial flanges integral with the first toe cap for covering opposing sides of the wearer's forefoot. 
     
     
         4 . The footwear of  claim 1  wherein the forefoot-supporting section of the second insole further includes lateral and medial flanges integral with the first toe cap for covering opposing sides of the wearer's forefoot. 
     
     
         5 . The footwear of  claim 1  wherein the second medial edge is offset downwardly of the first medial edge. 
     
     
         6 . The footwear of  claim 1  wherein the first and second insoles are a resilient self-supporting material. 
     
     
         7 . The footwear of  claim 1  wherein the body comprises a rigid polymer shell. 
     
     
         8 . The footwear of  claim 1  further including inline wheels mounted to the body sole. 
     
     
         9 - 10 . (canceled) 
     
     
         11 . The footwear of  claim 2  wherein the forefoot-supporting section of the first insole further includes lateral and medial flanges integral with the first toe cap for covering opposing sides of the wearer's forefoot. 
     
     
         12 . The footwear of  claim 2  wherein the forefoot-supporting section of the second insole further includes lateral and medial flanges integral with the first toe cap for covering opposing sides of the wearer's forefoot. 
     
     
         13 . The footwear of  claim 3  wherein the forefoot-supporting section of the second insole further includes lateral and medial flanges integral with the first toe cap for covering opposing sides of the wearer's forefoot. 
     
     
         14 . The footwear of  claim 2  wherein the second medial edge is offset downwardly of the first medial edge. 
     
     
         15 . The footwear of  claim 3  wherein the second medial edge is offset downwardly of the first medial edge. 
     
     
         16 . The footwear of  claim 4  wherein the second medial edge is offset downwardly of the first medial edge. 
     
     
         17 . The footwear of  claim 2  further including inline wheels mounted to the body sole. 
     
     
         18 . The footwear of  claim 3  further including inline wheels mounted to the body sole. 
     
     
         19 . The footwear of  claim 4  further including inline wheels mounted to the body sole. 
     
     
         20 . The footwear of  claim 5  further including inline wheels mounted to the body sole.

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