Insole assembly for increasing weight of footwear and heavy footwear having weight-increasing midsole/outsole
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first embodiment
[0042]FIG. 1 is an exploded perspective view of an insole assembly for increasing the weight of a footwear for example a shoe according to the invention.
[0043] Referring to FIG. 1, the insole assembly 100 of the invention includes a weight insole or a lower insole 110 made of a compressed resin having a high specific gravity for increasing the weight of a shoe, a shock-absorbing member 130 attached to the heel of the lower insole 110 and an upper insole 140 laid on the lower insole 110.
[0044] The weight insole or lower insole 110 embodying the essential concept of the invention is made by compression molding a desired resin up to a specific gravity of about at least 2. The resin contains nitrile rubber, butadiene rubber, Barium Sulfate (BaSO4) as high specific gravity filler, Readoxide (Pb3O4), ZnO, S, stearic acid and vulcanizing accelerator. Alternatively, the resin can be pressed, and then cut and processed into the form of an insole to fabricate the insole.
[0045] The high spec...
second embodiment
[0052]FIG. 2 is an exploded perspective view of an insole assembly for increasing the weight of a footwear according to the invention.
[0053] As shown in FIG. 2, the insole assembly 200 of the invention includes a weight insole or a lower insole 210 made of a compressed resin having a high specific gravity for increasing the weight of a footwear or a shoe, a shock-absorbing member 230 attached to the heel of the lower insole 210 and an upper insole 240 laid on the lower insole 210.
[0054] The lower insole 210 is made of the same material as the lower insole 110 of the first embodiment, but modified with its configuration.
[0055] Hereinafter the lower insole 210 will be described with reference in FIGS. 3 to 5, wherein FIG. 3 is a sectional view of a lower insole shown in FIG. 2, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a bottom view of FIG. 3.
[0056] As shown in FIGS. 3 to 5, the lower insole 210 is provided in a top surface 212 with a plurality of front concave portions 214, a...
third embodiment
[0081]FIG. 10 is a side elevation view of a heavy footwear for enhancing exercise effect according to the invention. As shown in FIG. 10, a heavy footwear or shoe 300 of the invention includes a body 320 of an upper for housing, a foot, a midsole 330 connected to the body 320 to support the foot and a bottomsole or outsole 340. underlying the midsole 330. The midsole 330 and the outsole 340 are formed of various materials and with various thicknesses according to the type and use of shoes. Further, an insole 350 (shown in a dotted line) is put on the midsole 330 to provide a cushion to a wearer's. foot-sole.
[0082] The third embodiment of the invention has technical features of increasing the weight of the shoe 300 by forming the midsole 330 and / or the outsole 340 of the shoe 300 from a compressed resin of a high specific gravity or inserting weight-increasing members made of the high specific gravity compressed resin into the midsole 330 and / or the outsole 340. The high specific gra...
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Abstract
Description
Claims
Application Information
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