Shoe insole

Assignee: Nihon Kenkozoshin Kenkyukai Co Ltd

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Filing: 1990-01-12

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Granted: —

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Expires: 2010-01-12

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Abstract

Abstract This invention relates to a shoe insole as a health instrument which is inserted into shoes. The shoe insole of the prevent invention has a structure comprising an insole body 2 which is formed by pressing and magnetizing a mixture of rubber and magnetic powder and provided with projections formed integrally thereon and further provided with two reinforced material sheets 8, 9 embedded within and along the insole body surfaces. This shoe insole is characterized in that the reinforced material sheet 8 or 9 is woven in meshes, of one thread material 12 having an isodiametric form and of the other thread material 11 having a flat form. When forming the insole body 2, using such reinforced material sheets 8, 9, they are moderately intruded into the projections and embedded there. Therefore, the reinforced material sheets 8, 9 do no extrude outside the body and reinforce the projection portions. However, a contact area between the flat form thread material 11 and the rubber-and-magnet plate is large, therefore bonding strength between the two becomes great.

Inventors

👤 Isamu Masuda

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-03 20:27

CPC Classifications

B; B29; B29D; B29D35/00; B29D35/12; B29D35/122; A; A43; A43B; A43B1/00; A43B1/0054; A43B17/00; B29C; B29C70/00; B29C70/04; B29C70/06

Claims Analysis

Total Claims: 7

Claim 1

Independent Claim 126 words

A shoe insole comprising an insole body 2 formed by pressing and magnetizing a mixture of rubber and magnetic powder, projections formed integrally on at least one surface of the insole body 2 and reinforced material sheets 8, 9 embedded within and along the surfaces of the insole body 2, wherein the reinforced material sheet 8 or 9 is orthogonally woven in meshes, of one thread material 12 which has an isodiametric form that has a nearly equal diameter in the directions perpendicular to and parallel to the material sheet, and of the other thread material 11 which has a flat form that has a sufficiently larger diameter in the direction parallel to the material sheet than that in the direction perpendicular to the material sheet.

Claim 2

Dependent Claim 47 words

A shoe insole as claimed in claim 1, wherein said rubber and magnetic powder are NBR rubber and a ferrite powder, which are mixed together in the prescribed portion and added with an additive containing a softener to form a raw material of an insole body 2.

Claim 3

Dependent Claim 27 words

A shoe insole as claimed in claim 1, wherein entirely on both surfaces of said insole body 2, a protective coat is formed by a polyurethane coating.

Claim 4

Dependent Claim 25 words

A shoe insole as claimed in claim 1 or claim 3, wherein a plurality of air holes are formed entirely through said insole body 2.

Claim 5

Dependent Claim 20 words

A shoe insole as claimed in claim 1, wherein said projections are formed on both surfaces of the insole body.

Claim 6

Dependent Claim 44 words

A shoe insole as claimed in claim 1 or claim 5, wherein said projections include the large projections and small projections, the former are projected at the plantar arch, finger joints and the heel and the latter are projected entirely on the other portions.

Claim 7

Dependent Claim 43 words

A shoe insole as claimed in claim 1, wherein said each reinforcing sheet material 8, 9 comprises a fabric woven of nylon fiber thread material treated with an adhesion treating agent, which is fused and bonded together with an insole in one body.

References Cited (Backward Citations)

US2812570A Cited

EP0289600A1 Cited

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