EP0140985A2 - Schuheinlage - Google Patents

Schuheinlage Download PDF

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Publication number
EP0140985A2
EP0140985A2 EP83109926A EP83109926A EP0140985A2 EP 0140985 A2 EP0140985 A2 EP 0140985A2 EP 83109926 A EP83109926 A EP 83109926A EP 83109926 A EP83109926 A EP 83109926A EP 0140985 A2 EP0140985 A2 EP 0140985A2
Authority
EP
European Patent Office
Prior art keywords
insole
sole
set forth
insoles
silicone rubber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83109926A
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English (en)
French (fr)
Other versions
EP0140985A3 (en
EP0140985B1 (de
Inventor
Toshiro Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19830109926 priority Critical patent/EP0140985B1/de
Priority to DE8383109926T priority patent/DE3375062D1/de
Publication of EP0140985A2 publication Critical patent/EP0140985A2/de
Publication of EP0140985A3 publication Critical patent/EP0140985A3/en
Application granted granted Critical
Publication of EP0140985B1 publication Critical patent/EP0140985B1/de
Expired legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot

Definitions

  • This invention relates to an improved insole which is used for conservative treatment inclusive of the rectification or the supplement of stature of the diseases of the lower limbs such as, for example, bandy legs, knock knees, fat feet, gonarthritis deformans, metatarsalgia, hallux valgus, and others.
  • insoles which have for their main body hard materials such mentioned above, however, not only are inclined to be made on the thick side so as to be put in possession of the strength and form-maintainability, especially in the case of cork or leather, but also they must be molded so as to lap the sole form-fittingly by being deeply curved at their brim, with the object of changing their bad adhesion to the sole for the better.
  • insoles of such type cannot help becoming bulky on the whole, and accordingly it is difficult, nay, rather impossible to use such things with inserting into socks because of their being restless therein as well as doing damage thereto.
  • the insole according to this invention is the one which is molded of materials such as silicone compound, so that it is of small bulk, and accomodates itself readily to the movement of the sole to adhere closely thereto, thereby having a very good running in the region of the sole.
  • This invention has for its another object the provision of an insole which is able to be loaded with the aid of common socks or a holder of simple make, and also an insole which has itself a simple holder.
  • Still a further object of this invention is to provide an insole which is good in air permeability and is good for health to be possible to be washed, and which has the sense of warmth and is agreeable to the touch and which is able to use long time, and further which is light in weight and low-priced.
  • a further object of this invention is a provide an insole which is able to reform to fit the foot of the patient after molding.
  • FIG.l and 2 there is shown an example of the insole according to the invention.
  • This insole(l) is an example of lateral wedge insoles (exclusively for left foot use ) used for the conservative treatment of the baker leg, and so on.
  • the upper fase of the insole(l) is made la the undulating form in accord with the sole part (reference numeral (31) in Fig.3 ) , and the whole of the insole takes the form of a wedge being made thicker toward the left side (11) with the object of obtaining the expected therapeutic value.
  • This insole is formed of foaming silicone rubber which develop the gum-like elasticity under the normal temperature.
  • reference numeral (2) ••• in the figure indicate small holes for air permeation being bored piecing through from the upper face to the lower face. (5)••• indicate minute and indipendent foams, these are equally included in whole of the insole.
  • silicone compound described later is used as the material for this insole(l), it has the flexibility and toughness, is hard to break down, is able to manufacture after molding, has the close adhesion to the sole part, and has a proper degree of hardness resistible to the load of the foot part. Further since minute foams are equally formed, exceeds in heat insulation. According to this, the insole has an effect which a pain of the affected part is softened.
  • this insole (1) according to the invention has an extremely good running in the sole with a comfortable feeling of putting on the foot, is skidproof, and can accord satisfactorily with the movement of the sole part (31).
  • the loading of the insole (1) becomes easy, and the stability of the foot part is heightened, wherewith the loading with the use of socks becomes also simple and easy, which was thought of as difficult or rather impossible for long time.
  • the insole according to this invention while putting every sort of footwear such as slippers, sandals, to say noting of shoes on, the therapeutic value can be heightened with certainly. Otherwise, it can be used also as a cution sole in the shoe in like manner as conventional things. Not only that, because of its nature of being ready to closely adhere to the footwear and sole, it can be further used as the same as above on slippers or sandals.
  • the loading of the insole(1) on the sole(3) may be conducted by the use of such a holder(4) as shown in Fig. 4 (a).
  • This holder (4) is constructed, for example, in such a manner that band bodies (43) (43) are attached to both side of a bag body (42) which has an opening part (41) for taking in and out the insole (1), and that coupling means (44) (44) are provided on both end parts of those band bodies (43) (43).
  • the bag body (42) is applied on the sole in the state where the insole (1) is being received within the bag body(42), and then the band bodies (43) (43) are coupled on the instep of the foot, making then settle there stably.
  • Materials for the bag body (42) and the band bodies (43) (43) are preferable to be of good adhesion to the sole part(3) and of fine air permeability.
  • normally cloth made of, for example, strechy yarn, spandex, and the like, or knitted goods.
  • face fasteners are used, but in addition to that, it does not matter if buttons, snaps, hooks, strings and others are used.
  • the band bodies (43) (43) being separated in two in the figure may be united in a single continuous arch-shaped band, both end of which are fixed fast on the bag body (42) , what by being deprived of the coupling means (44) and what by adding a new band body (not shown ) insted which is to be hung on the instep part of the foot.
  • the insole (1) can be loaded on the sole part(31) very simply and stably irrespective of indoor and outdoor and no matter what kind of footwear may be, in consequence of which the feeling of putting on is very good and the troubleness of loading is eliminated.
  • patients do not have the feeling of discomfort and uneasiness attendant upon the separation-contact occurring very often between the sole and the insole, because of the whole of the insole (1) following the movement of the sole, thereby the expected therapeutic value being able to be elevated remarkably.
  • This holder (4) can draw on the sock from over the loaded insole because of the holder being of small bulk. Further, this holder (4) is excellent in air permeability since it is made of cloth or knitted goods, and it is also sanitary as it is washable.
  • the insole (1) according to this invention can also be washed without difficulty, is good for health, can be used long time, and is very economical, unlike the ones made of leather or cork.
  • the insole which is provided with small holes for draft, as shown in the figure, is never filled with dampness due to perspiration, thereby the cleanliness of the foot part being preserved and the unpleasant sensation of somehow offensive smell being able to be mitigated by a large margin.
  • these small holes for draft(2) ⁇ will do if being disposed suitable over the whole surface, otherwise to the central side of the insole.
  • the air permeability of these small holes for draft grows better the larger they are in size and the more they are in number. The size and number of them, however, have naturally their limits.
  • the insole according to the invention is a molding of silicone compound which has the gum-like elasticity in the vicinity of the normal temperature.
  • Silicone rubber is excellent in water-resisting property, medicine-resisting property, thermal and low-temperature resistance and high tensile strength. And it is most desirable for materials of Medical appliances because of scentless and nonpoisonous. But in the past, this material was never used for the insole. The reason of this is that it is believed that the hard material exceeds in the soft material in the power of reform with the experience and the fixed idea.
  • the inventor of this invention was manifucturing the insoles with various silicone rubber compounds conventionally used, on the one side, while on the other hand he has been at grips with the development of an idial silicone rubber compound as material for the insole.
  • silicone rubber compound according to this invention is a mixture of both inorganic filler and hydrous silicate powder with heat-vulcanized silicone rubber.
  • the one which is made by mixing only calcium carbonate as a filler with silicone rubber even when about the equivalent is added to silicone rubber, keeps the fluidity, has the good workability, and the elevation of its strength is perceived, in spite of which a good effect is not much exerted upon the swell in volume of the product only to increase the specific gravity without contributing to the lowering of the production cost.
  • hydrous silicate powder is hard to disperse into silicone rubber thought it is perceivable that the light-weightiness is brought about by the action of foam-formation, and the fluidity is lowered remarkably, thus the workability being deteriorated. Then these defects have been eliminated by the present invention by mixing and dispersing the both components : calcium carbonate and hydrous silicate powder into silicone rubber at a certain ratio.
  • inorganic fillers used in this invention there can be used various sorts and grain sizes of calcium carbonate, magnesium carbonate, talc, aluminum hydroxide, magnesium hydroxide, calcium sulfate, calcium silicate, ground silica, clay, mica, glass beads, micro-balloon (hollow spherical glass powder) , silica balloon, and others.
  • Preferable out of the above are the ones which are low in oil absorption value so that the fluidity may be hard to drop at the time of mixing silicone rubber, and which a surface treatment such as the silane treatment are conducted on with the view to increasing the strength of the product, especially the tearing strength, cracking resistance, and others.
  • the surface-reactive calcium carbonate whose grain surface has been activated by silane coupling agent.
  • micro-balloon is one of the most preferable filler.
  • preferable is the one whose specific gravity is as low as possible, for reasons of making the product light-weight.
  • hydrous silicate powder fulfills its function such as the actualization of high strength of the product or the reduction of production cost as an inorganic filler, and further it can make minute babbles uniform by the action of water being contained therein (water of crystallization) , playing an important role in making the product light-weight or in forming within the product. In this way, it does not need particularly any foaming agent belonging to the organic group.
  • there is used such as white carbon which is one of the noncrystal hydrous silicate powder.
  • any pigment and other additives can be freely mixed so far as it is possible to obtain a product having the expected object properties.
  • Other inorganic fillers can be used in place of hydrous silicate powder.
  • the preferable compounding ratio of these components is 5-75 parts (by weight : hereinafter the same) of an i n organic filler and 5-30 parts of hydrous silicate powder together with 100 parts of heat-vulcanized silicone rubber and 10 parts (be changed in compliance the kind of silicone rubber or vulcanizing agent) of vulcanizing agent.
  • an i n organic filler and 5-30 parts of hydrous silicate powder together with 100 parts of heat-vulcanized silicone rubber and 10 parts (be changed in compliance the kind of silicone rubber or vulcanizing agent) of vulcanizing agent.
  • hydrous silicate powder when mixing more than 30 parts of it, the fluidity drops considerably, and when less 5 parts, the foam-formation is not satisfactorily performed, and sometimes the one-sided formation is unpreferably generated. Especially preferably is the limits of 10-20 parts.
  • the vulcanizing agent As a start 10 parts of the vulcanizing agent is mixed and stirred thoroughly with 100 parts of the heat-vulcanized silicone rubber (a colorless, transparent liquid) .
  • the heat-vulcanized silicone rubber a colorless, transparent liquid
  • this slurry After being peered into a mold, this slurry is heated at about 100 °C in a thermostatic oven for about one hour to be made hardened.
  • the object which was released from the mold is a hardened body which is light-weight and contains many minute babbles scatt ered uniformly on the whole surface, as shown in Fig. 1 and Fig. 2.
  • This hardened body, that is the insole(1) has the sense of warmth, and exhibits the excellent internal tearing resistance and the cracking resistance.
  • the silicone rubber compound according to the invention has the proper fluidity and the foam-forming property, whereby it can not only do without the defoaming process which has been most difficult heretofore in making use of the foam-formation but also elevate the working efficiency at a large margin.
  • the product obtained is also light-weight and excellent in internal tearing strength and cracking resistance.
  • this compound can be used semi-eternally if it is politely used, and can be reformed after molding. Accordingly, we can cut and grind the insole to fit the patient's foot, which insole is selected in some kinds of insoles which are manufactured in advance.
  • the insole of this invention is the most suitable one as a therapeutical means which is to be loaded on the human body because of all it component materials being harmless and poisonless.
  • the insole according to the invention is the one that is integrally molded by the use of silicone rubber compound having the gum-like elasticity, is of small bulk, is easy to accord with the movement of the sole while closely adhering thereto, and thereby is able to become very satisfactorily accustomed to the sole part.
EP19830109926 1983-10-05 1983-10-05 Schuheinlage Expired EP0140985B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19830109926 EP0140985B1 (de) 1983-10-05 1983-10-05 Schuheinlage
DE8383109926T DE3375062D1 (en) 1983-10-05 1983-10-05 An insole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19830109926 EP0140985B1 (de) 1983-10-05 1983-10-05 Schuheinlage

Publications (3)

Publication Number Publication Date
EP0140985A2 true EP0140985A2 (de) 1985-05-15
EP0140985A3 EP0140985A3 (en) 1985-06-12
EP0140985B1 EP0140985B1 (de) 1988-01-07

Family

ID=8190723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830109926 Expired EP0140985B1 (de) 1983-10-05 1983-10-05 Schuheinlage

Country Status (2)

Country Link
EP (1) EP0140985B1 (de)
DE (1) DE3375062D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244420A (en) * 1990-05-24 1991-12-04 Junko Suginaka Footwear and insole pad thereof
DE19914128C2 (de) * 1999-03-27 2003-04-03 Thaemert Orthopaedische Hilfsmittel Gmbh & Co Kg Einlage, insbesondere Fersenbett

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1694271U (de) * 1952-02-20 1955-03-03 Afina Gummiwerke G M B H Orthopaedische formbrandsohle.
GB798669A (en) * 1956-12-12 1958-07-23 Midland Silicones Ltd Improvements in or relating to organosiloxane elastomer foams
US3271332A (en) * 1964-12-07 1966-09-06 Minnesota Mining & Mfg Siloxane foam
DE2334837A1 (de) * 1973-07-09 1975-02-06 Ernst Boll Verfahren zur herstellung von orthopaedischen schuhen
FR2427087A1 (fr) * 1978-06-02 1979-12-28 Godo Jean Claude Utilisation des elastomeres de silicone en appareillage orthopedique moule
EP0008034A1 (de) * 1978-08-03 1980-02-20 Bayer Ag Verfahren zur Herstellung von gummielastische, feinporige Formschaumkörper oder Schaumüberzüge ergebenden Organopolysiloxan-Formmassen sowie daraus hergestellte Formkörper
DE2926246A1 (de) * 1979-06-29 1981-01-15 Stefan Sportschuhe Verfahren zum anpassen einer schuheinlage, schuheinlage und fertigungssatz zum durchfuehren des verfahrens
DE3046756A1 (de) * 1980-12-12 1982-07-22 Götz-Gerd Prof. Dr.med. 4400 Münster Kuhn Verfahren zur herstellung eines fussbettes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1694271U (de) * 1952-02-20 1955-03-03 Afina Gummiwerke G M B H Orthopaedische formbrandsohle.
GB798669A (en) * 1956-12-12 1958-07-23 Midland Silicones Ltd Improvements in or relating to organosiloxane elastomer foams
US3271332A (en) * 1964-12-07 1966-09-06 Minnesota Mining & Mfg Siloxane foam
DE2334837A1 (de) * 1973-07-09 1975-02-06 Ernst Boll Verfahren zur herstellung von orthopaedischen schuhen
FR2427087A1 (fr) * 1978-06-02 1979-12-28 Godo Jean Claude Utilisation des elastomeres de silicone en appareillage orthopedique moule
EP0008034A1 (de) * 1978-08-03 1980-02-20 Bayer Ag Verfahren zur Herstellung von gummielastische, feinporige Formschaumkörper oder Schaumüberzüge ergebenden Organopolysiloxan-Formmassen sowie daraus hergestellte Formkörper
DE2926246A1 (de) * 1979-06-29 1981-01-15 Stefan Sportschuhe Verfahren zum anpassen einer schuheinlage, schuheinlage und fertigungssatz zum durchfuehren des verfahrens
DE3046756A1 (de) * 1980-12-12 1982-07-22 Götz-Gerd Prof. Dr.med. 4400 Münster Kuhn Verfahren zur herstellung eines fussbettes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMIC-INGENIEUR-TECHNIK, vol.48, no.11, November 1976, pages 922-933, WEINHEIM, (DE) H. FERCH:"Pulverformige amorphe synthetische Kieselsaure-Produkte Herstellung und Charakterisierung". * Page 923, table 1, line A1; page 923, column 1, last paragraph- page 923, column 2, paragraph 1 * *
JAPANESE PATENTS GAZETTE, SECTION CH: CHEMICAL, week D 44, December 9, 1981, part D, page 5, column 1, no.80638 D/44, Derwent publications ltd., LONDON, (GB) "Deodorising sheet e.g. for shoe insole - comprising porous layer contg. alpha-bromo cinnamic aldehyde and air-permeable layer". *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244420A (en) * 1990-05-24 1991-12-04 Junko Suginaka Footwear and insole pad thereof
DE19914128C2 (de) * 1999-03-27 2003-04-03 Thaemert Orthopaedische Hilfsmittel Gmbh & Co Kg Einlage, insbesondere Fersenbett

Also Published As

Publication number Publication date
EP0140985A3 (en) 1985-06-12
DE3375062D1 (en) 1988-02-11
EP0140985B1 (de) 1988-01-07

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