Shoe insole

Inactive Publication Date: 2005-03-24
KANEDAYA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since these insoles are made of silicone rubber, however, they have been at a disadvantage in affording insufficient adhesion to the soles of shoes and consequently, during the course of use, suffering themselves to be displaced or rolled up.
Particularly when they have the shape of toe caps of the soles of shoes as in sandals for use by women, they are at a disadvantage in being displaced or rolled up because the soles are exposed to a large load and frictional force while the users' feet are being inserted into the toe caps.

Method used

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Examples

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example 1

[0047] A molding compound having a styrene-butadiene-styrene block copolymer (SBS) compound with polypropylene and oil (made by Kuraray Plastic K.K. and sold under the trademark designation of “Septon KC-145A”) and aluminum foils added thereto were together molded by an injection molding device (made by Sumitomo Jukikai K.K. and sold under the product code of “SG-75”), with a nozzle temperature of 250° C., a first zone temperature of 240° C., and a second zone temperature of 230° C. to form an insole of the shape illustrated in FIG. 4 and FIG. 5. The surface of this insole excepting the indicated part (the part indicated with reference numerals 6 and 7) was subjected to an embossing treatment. Consequently, a laminar insole 4, 5 having a thickness of 0.7 mm was produced. The portions indicated above (the reference numerals 6 and 7) were transparent.

[0048] A protrusion 8 for prevention of hallux valgus having a shape illustrated in FIG. 6 and measuring 30 mm in diameter and 4 mm in ...

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Abstract

An insole easy to wash and excellent in adhesiveness to the sole of a shoe is provided. An insole produced by punching a piece of the shape of a sole of a shoe or the shape of the leading terminal of a sole of a shoe out of a thermoplastic elastomer by the injection molding technique.

Description

TECHNICAL FIELD [0001] This invention relates to an insole and particularly to an antifouling sheet for sandals such as sandals and sandal mules. BACKGROUND ART [0002] The insoles have been used hitherto on the sole parts of sandals such as sandals and sandal mules with a view to preventing defilement, imparting a cushioning property to such a sandal, and preventing slippage of the wearer's foot on the sandal. As the insoles suitable for such purposes, the products resulting from punching pieces of prescribed shapes (the shapes of the whole undersurfaces of shoes or the shapes of the toe cap parts of shoe soles, for example) out of a sheet as of a silicone rubber have been being mainly used. [0003] Since these insoles are made of silicone rubber, however, they have been at a disadvantage in affording insufficient adhesion to the soles of shoes and consequently, during the course of use, suffering themselves to be displaced or rolled up. Particularly when they have the shape of toe c...

Claims

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Application Information

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IPC IPC(8): A43B3/26A43B17/00
CPCA43B1/009A43B17/003A43B3/26A43B17/00A43B17/14
InventorKANEDA, YASUSHIMORIMOTO, MINORU
OwnerKANEDAYA