EP0025020B1 - Orthopaedic shoe with automatically erect toe when the foot is raised - Google Patents

Orthopaedic shoe with automatically erect toe when the foot is raised Download PDF

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Publication number
EP0025020B1
EP0025020B1 EP80830044A EP80830044A EP0025020B1 EP 0025020 B1 EP0025020 B1 EP 0025020B1 EP 80830044 A EP80830044 A EP 80830044A EP 80830044 A EP80830044 A EP 80830044A EP 0025020 B1 EP0025020 B1 EP 0025020B1
Authority
EP
European Patent Office
Prior art keywords
shoe
sole
toe
foot
plate
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.)
Expired
Application number
EP80830044A
Other languages
German (de)
French (fr)
Other versions
EP0025020A2 (en
EP0025020A3 (en
Inventor
Bruno Bartoli
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.)
Calzaturificio Tiger Srl
Original Assignee
Calzaturificio Tiger Srl
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 Calzaturificio Tiger Srl filed Critical Calzaturificio Tiger Srl
Priority to AT80830044T priority Critical patent/ATE5935T1/en
Publication of EP0025020A2 publication Critical patent/EP0025020A2/en
Publication of EP0025020A3 publication Critical patent/EP0025020A3/en
Application granted granted Critical
Publication of EP0025020B1 publication Critical patent/EP0025020B1/en
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

Definitions

  • the invention relates to an orthopedic shoe; a thin, flexible and elastic metal blade is provided under the sole with the part closest to the toe of the shoe fixed to the sole and that closest to the heel, free relative to the sole but connected to a pushing device towards the tip of the shoe, hidden in the heel; the force applied to the free end of the blade has an active effect directed towards the ground which causes the tip of the shoe to rise when the foot is lifted from the ground.
  • the object of the present invention is to propose a remedy for the difficulty of wandering these subjects.
  • GB 525 963 discloses a shoe provided with an elastic metal blade placed by one of its ends rigidly in the heel and, by its other end, in contact with or attached to the rear of the sole of the shoe. But said metal blade has the sole purpose of helping the functioning of the shoe, that is to say making walking less tiring for those who have good foot; it is not used for those who have a paralyzed or malformed foot, since it is not an orthopedic shoe and does not allow the automatic erection of the tip of the shoe when the foot is lifted from the ground, to be carried forward.
  • This invention solves the problem of inducing the automatic lifting of the toe of the shoe while the foot of the wearer is released from the weight of the body and must, during the locomotion , be carried forward.
  • the advantages obtained thanks to this invention consist in that the toe of the shoe is lifted automatically each time the shoe is released from the weight of the body; that said lifting may concern the entire width of the sole or, pre-eminently, only half, depending on the infirmity of the wearer's foot; that the lifting can also include a twisting of the sole, which is of great use in the case of equine, varus or supine feet.
  • Fig. 1 shows the overall view of a straight shoe according to the invention, in the non-use position
  • fig. 2 shows the same shoe in the position of use with the foot loaded with the weight of the body
  • fig. 3 shows the same shoe in the position of use with the foot released from the weight of the body as during the advancement phase for walking;
  • fig. 5 shows the same shoe seen from below and whose pushing device acts in the direction of the longitudinal axis of the shoe
  • fig. 5 shows the same shoe seen from below and whose pushing device acts in an oblique direction relative to the longitudinal axis.
  • Its basic constitution includes a shoe of substantially usual shape and structure, where on the lower part of the sole 1 is applied a metal blade 2, thin but robust, flexible and elastic, the part closest to the tip of the shoe is fixed, using known means, to the sole 1, while the other part, which is conveniently restricted towards the end, is free and therefore capable of detaching from the sole under the effect of a force lateral thrust directed downwards and applied at its end; a sub-sole 3 having the function of covering the face of the blade 2 directed towards the ground and of forming a non-slip surface; of a pushing device of said blade 2 comprising at least: a compression type spring 4, housed in a tube 5 fixed in the heel 6, this spring 4 transmitting its compression action to the blade 2 via a piston 7 and a connecting rod 8 shaped so that it is hidden under the central arch 9 of the shoe and connected at one end directly to the piston 7 and by the other at the end 2 'of the blade 2 by means of a hinge 22.
  • a compression type spring 4 housed in a tube 5 fixed
  • said spring 4 has adequate dimensions in relation to the thrust that it is desired to obtain and that it is variable depending on the infirmity and the weight of the person wearing the shoe.
  • the force F1 with which the spring 4 in extension acts on the blade 2 has a component F2 in the free end 2 'of the blade, which component F2 is transverse or oblique to the blade and directed downwards: this determines the uplift of the tip of the shoe.
  • the longitudinal axis of the spring 4 and of the link 8 is either in a plane which has the longitudinal axis YY of the shoe as its outline (example illustrated in FIG. 4), so that the toe of the shoe undergoes a simple lifting by rotation around the trans axis versal XX; either in a plane parallel to it or else oblique (example illustrated in fig. 5) so that the toe of the shoe undergoes a lifting with torsion by effect of the rotation around the axis X'X '.
  • the blade part 2 intended to be fixed to the sole 1 has a variable width extension in order to be extended over the entire width of the sole or else on a part which may be central or lateral with respect to the sole.

Description

L'invention concerne une chaussure orthopédique; une lame métallique fine, flexible et élastique est prévue sous la semelle avec la partie la plus proche de la pointe de la chaussure fixée à la semelle et celle la plus proche du talon, libre par rapport de la semelle mais reliée à un dispositif de poussée vers la pointe de la chaussure, dissimulé dans le talon; la force appliquée à la libre extrémité de la lame a un effect actif dirigé vers le sol qui provoque le soulèvement de la pointe de la chaussure lorsque le pied est soulevé de terre.The invention relates to an orthopedic shoe; a thin, flexible and elastic metal blade is provided under the sole with the part closest to the toe of the shoe fixed to the sole and that closest to the heel, free relative to the sole but connected to a pushing device towards the tip of the shoe, hidden in the heel; the force applied to the free end of the blade has an active effect directed towards the ground which causes the tip of the shoe to rise when the foot is lifted from the ground.

On sait que, pendant la locomotion, les membres inférieurs du corps humain sont tous deux actifs et, pendant que l'un, s'appuyant sur le sol, soutient le poids du corps et pousse en avant et vers le haut son centre de gravité, l'autre se raccourcit pour accomplir un mouvement pendulaire et se porter en avant; à ceci coopèrent les muscles fléchisseurs de la cuisse ainsi que les groupes musculaires qui, plus précisément, agissent sur le pied pour son extension.It is known that, during locomotion, the lower limbs of the human body are both active and, while one, leaning on the ground, supports the weight of the body and pushes its center of gravity forward and upwards , the other shortens to accomplish a pendulum movement and to move forward; to this cooperate the flexor muscles of the thigh as well as the muscular groups which, more precisely, act on the foot for its extension.

Quand cette dite extension fait défaut ou est insuffisante comme, par exemple, chez les hémiplégiques, paraplégiques, handicapés moteur et sujets à paralysies flasques ou autres infirmités ou malformations des membres inférieurs, on constate, pendant la progression, que la pointe du pied frotte par terre, ce qui est la cause de fréquentes chutes. La présente invention a pour but de proposer un remède à la difficulté de déambulation de ces sujets.When this said extension is lacking or is insufficient such as, for example, in hemiplegics, paraplegics, motor handicapped and subjects with flaccid paralysis or other infirmities or malformations of the lower limbs, it is noted, during the progression, that the tip of the foot rubs by earth, which is the cause of frequent falls. The object of the present invention is to propose a remedy for the difficulty of wandering these subjects.

Il est connu par le brevet GB 525 963 une chaussure pourvu d'une lame métallique, élastique, placée par une de ses extrémités rigidement dans le talon et, par son autre extrémité, au contact ou rattachée à l'arrière de la semelle de la chaussure. Mais ladite lame métallique a le seul but d'aider au fonctionnement de la chaussure, c'est-a-dire de rendre la déambulation moins fatigante à qui a bon pied; elle ne sert pas à celui qui à un pied paralysé ou malformé, étant donné qu'elle n'est pas une chaussure orthopédique et ne permet pas l'érection automatique de la pointe de la chaussure alors que le pied est soulevé de terre, pour être porté en avant.GB 525 963 discloses a shoe provided with an elastic metal blade placed by one of its ends rigidly in the heel and, by its other end, in contact with or attached to the rear of the sole of the shoe. But said metal blade has the sole purpose of helping the functioning of the shoe, that is to say making walking less tiring for those who have good foot; it is not used for those who have a paralyzed or malformed foot, since it is not an orthopedic shoe and does not allow the automatic erection of the tip of the shoe when the foot is lifted from the ground, to be carried forward.

Cette invention, telle qu'elle est caractérisée dans les revendications, résoud le problème, consistant à provoquer le soulévement automatique de la pointe de la chaussure alors que le pied de celui qui la chausse est dégagé du poids du corps et doit, pendant la locomotion, être porté en avant.This invention, as characterized in the claims, solves the problem of inducing the automatic lifting of the toe of the shoe while the foot of the wearer is released from the weight of the body and must, during the locomotion , be carried forward.

Ceci est obtenu à l'aide d'une lame résistante, flé- xible et élastique, se situant sous la semelle, dont la partie la plus proche de la pointe de la chaussure est fixée à la semelle et celle la plus lointaine est libre et reliée à un dispositif de poussée vers la pointe de la chaussure, dissimulé dans le talon.This is obtained using a resistant, flexible and elastic blade, located under the sole, the part closest to the toe of the shoe is fixed to the sole and the most distant part is free and connected to a pushing device towards the tip of the shoe, hidden in the heel.

Les avantages obtenus grâce à cette invention consistent en ceci que la pointe de la chaussure est soulevée automatiquement chaque fois que la chaussure est dégagée du poids du corps; que le dit soulèvement peut concerner toute la largeur de la semelle ou, d'une façon préeminante, seulement une moitié, en fonction de l'infirmité du pied du porteur; que le soulèvement peut comporter aussi une torsion de la semelle, ce qui est d'une grande utilité en cas de pieds équins, varus ou avec supination.The advantages obtained thanks to this invention consist in that the toe of the shoe is lifted automatically each time the shoe is released from the weight of the body; that said lifting may concern the entire width of the sole or, pre-eminently, only half, depending on the infirmity of the wearer's foot; that the lifting can also include a twisting of the sole, which is of great use in the case of equine, varus or supine feet.

Dans ce qui suit l'invention est exposée plus en détail et à l'aide des dessins en annexe, représentant seulement un mode d'exécution.In what follows the invention is explained in more detail and with the aid of the appended drawings, representing only one embodiment.

La fig. 1 représente la vue d'ensemble d'une chaussure droite conforme à l'invention, en position de non-utilisation;Fig. 1 shows the overall view of a straight shoe according to the invention, in the non-use position;

la fig. 2 représente la même chaussure en position d'utilisation avec le pied chargé du poids du corps;fig. 2 shows the same shoe in the position of use with the foot loaded with the weight of the body;

la fig. 3 représente la même chaussure en position d'utilisation avec le pied dégagé du poids du corps comme pendant la phase d'avancement pour la déambulation;fig. 3 shows the same shoe in the position of use with the foot released from the weight of the body as during the advancement phase for walking;

la fig. 5 représente la même chaussure vue de dessous et dont le dispositif de poussée agit en direction de l'axe longitudinal de la chaussure;fig. 5 shows the same shoe seen from below and whose pushing device acts in the direction of the longitudinal axis of the shoe;

la fig. 5 représente la même chaussure vue de dessous et dont le dispositif de poussée agit en direction oblique par rapport à l'axe longitudinal.fig. 5 shows the same shoe seen from below and whose pushing device acts in an oblique direction relative to the longitudinal axis.

Sa constitution de base comprend une chaussure de forme et structure substantiellement usuelles, où sur la partie inférieure de la semelle 1 est appliquée une lame 2 métallique, fine mais robuste, flexible et élastique dont la partie la plus proche de la pointe de la chaussure est fixée, à l'aide de moyens connus, à la semelle 1, alors que l'autre partie, qui est opportunément restreinte vers l'extrémité, est libre et donc susceptible de se détacher de la semelle sous l'effet d'une force de poussée latérale dirigée vers le bas et appliquée à son extrémité; d'une sous-semelle 3 ayant la fonction de couvrir la face de la lame 2 dirigée vers le sol et de former une surface antidérapante; d'un dispositif de poussée de la dite lame 2 comprenant au moins: un ressort 4 de type à compression, logé dans un tube 5 fixé dans le talon 6, ce ressort 4 transmettant son action de compression à la lame 2 par l'intermédiaire d'un piston 7 et d'une biellette 8 profilée de telle façon qu'elle est dissimulée sous la voûte centrale 9 de la chaussure et reliée par une extrémité directement au piston 7 et par l'autre à l'extrémité 2' de la lame 2 au moyen d'un charnière 22.Its basic constitution includes a shoe of substantially usual shape and structure, where on the lower part of the sole 1 is applied a metal blade 2, thin but robust, flexible and elastic, the part closest to the tip of the shoe is fixed, using known means, to the sole 1, while the other part, which is conveniently restricted towards the end, is free and therefore capable of detaching from the sole under the effect of a force lateral thrust directed downwards and applied at its end; a sub-sole 3 having the function of covering the face of the blade 2 directed towards the ground and of forming a non-slip surface; of a pushing device of said blade 2 comprising at least: a compression type spring 4, housed in a tube 5 fixed in the heel 6, this spring 4 transmitting its compression action to the blade 2 via a piston 7 and a connecting rod 8 shaped so that it is hidden under the central arch 9 of the shoe and connected at one end directly to the piston 7 and by the other at the end 2 'of the blade 2 by means of a hinge 22.

Il va de soi que le dit ressort 4 a des dimensions adéquates en relation à la poussée que l'on veut obtenir et qu'il est variable en fonction de l'infirmité et du poids de celui qui porte la chaussure.It goes without saying that said spring 4 has adequate dimensions in relation to the thrust that it is desired to obtain and that it is variable depending on the infirmity and the weight of the person wearing the shoe.

Avec le pied soulevé de terre et donc dégagé, la force F1 avec laquelle le ressort 4 en extension agit sur la lame 2 a une composante F2 dans l'extrémité libre 2' de la lame, laquelle composante F2 est transversale ou oblique à la lame et dirigée vers le bas: ceci détermine le soulèvement de la pointe de la chaussure.With the foot raised from the ground and therefore cleared, the force F1 with which the spring 4 in extension acts on the blade 2 has a component F2 in the free end 2 'of the blade, which component F2 is transverse or oblique to the blade and directed downwards: this determines the uplift of the tip of the shoe.

Au contraire, avec le pied appuyé par terre et chargé du poids P1 du corps, la composante F2 est dirigée vers le haut et le ressort 4 est comprimé dans son logement.On the contrary, with the foot supported on the ground and loaded with the weight P1 of the body, the component F2 is directed upwards and the spring 4 is compressed in its housing.

L'axe longitudinal du ressort 4 et de la biellette 8 est soit dans un plan qui a pour tracé l'axe longitudinal YY de la chaussure (exemple illustré à la fig. 4), ce qui fait que la pointe de la chaussure subit un simple soulèvement par rotation autour de l'axe transversal XX; soit dans un plan parallèle à celui-ci ou bien oblique (exemple illustré à la fig. 5) ce qui fait que la pointe de la chaussure subit un soulèvement avec torsion par effet de la rotation autour de l'axe X'X'.The longitudinal axis of the spring 4 and of the link 8 is either in a plane which has the longitudinal axis YY of the shoe as its outline (example illustrated in FIG. 4), so that the toe of the shoe undergoes a simple lifting by rotation around the trans axis versal XX; either in a plane parallel to it or else oblique (example illustrated in fig. 5) so that the toe of the shoe undergoes a lifting with torsion by effect of the rotation around the axis X'X '.

En outre la partie de lame 2 destinée à être fixée à la semelle 1 a une extension variable en largeur afin d'être étendue sur toute la largeur de la semelle ou bien sur une partie qui peut être centrale ou latérale par rapport à la semelle.In addition, the blade part 2 intended to be fixed to the sole 1 has a variable width extension in order to be extended over the entire width of the sole or else on a part which may be central or lateral with respect to the sole.

Claims (5)

1. An orthopaedic shoe with automatically erect toe when the foot is raised from the ground to be moved forward during walking, characterised in that lifting of the toe, when the foot is removed from the ground, is produced by a force F1, of which a component F2 extends downwardly and which is exerted on the free end (2') of a thin, flexible and elastic metal plate (2) situated below the sole (1) in the longitudinal direction of the shoe, the plate end closer to the toe of the shoe being secured to the sole while the free end (2') is adjacent the heel (6) and hence remote from the toe of the shoe, said end (2') being connected to a thrust mechanism (4) concealed in the heel (6) and exerting the said force F1.
2. An orthopaedic shoe according to claim 1, characterised in that that part of the plate (2) which is secured to the sole (1) has a width adapted to cover all or part of the width of the sole and is applied to the sole in a central or lateral position.
3. An orthopaedic shoe according to claim 1, characterised in that an undersole (3) is secured to that surface of the plate (2) which extends downwards in order to cover the said plate and provide a nonslip surface.
4. An orthopaedic shoe according to claim 1, characterised in that the said thrust mechanism (4) comprises at least one compression spring (4) disposed in a tube (5) secured in the heel (6), a piston (7) sliding in the tube (5) in contact with the spring (4), a link (8) appropriately arched for concealment beneath the central arch of the shoe and connected at one end to the piston and at the other to the free end (2') of the plate (2) by means of a hinge (22).
5. An orthopaedic shoe according to claim 1, characterised in that the axis of the spring (4) and of the link (8) are on a plane having as its outline either the longitudinal axis (YY) of the shoe or an axis parallel or oblique to such axis (Y'Y').
EP80830044A 1979-08-31 1980-07-04 Orthopaedic shoe with automatically erect toe when the foot is raised Expired EP0025020B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80830044T ATE5935T1 (en) 1979-08-31 1980-07-04 ORTHOPEDIC SHOE WITH AUTOMATICALLY RAISE TOE WHEN LIFTING THE FOOT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT952479 1979-08-31
IT09524/79A IT1203275B (en) 1979-08-31 1979-08-31 ERECTILE TOE ORTHOPEDIC SHOE AUTOMATICALLY WITH LIFTED FOOT

Publications (3)

Publication Number Publication Date
EP0025020A2 EP0025020A2 (en) 1981-03-11
EP0025020A3 EP0025020A3 (en) 1981-08-26
EP0025020B1 true EP0025020B1 (en) 1984-01-25

Family

ID=11131582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80830044A Expired EP0025020B1 (en) 1979-08-31 1980-07-04 Orthopaedic shoe with automatically erect toe when the foot is raised

Country Status (11)

Country Link
US (1) US4331152A (en)
EP (1) EP0025020B1 (en)
JP (1) JPS5636946A (en)
AR (1) AR221281A1 (en)
AT (1) ATE5935T1 (en)
BR (1) BR8005408A (en)
CA (1) CA1140338A (en)
DE (1) DE3066270D1 (en)
ES (1) ES252138Y (en)
GR (1) GR69696B (en)
IT (1) IT1203275B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573457A (en) * 1983-12-29 1986-03-04 Parks Thomas J Toe lifting shoe
US4941273A (en) * 1988-11-29 1990-07-17 Converse Inc. Shoe with an artificial tendon system
US8505220B2 (en) 2010-03-04 2013-08-13 Nike, Inc. Flex groove sole assembly with biasing structure
US9241535B2 (en) 2013-03-14 2016-01-26 Nike, Inc. Sole structures and articles incorporating same
US9364043B2 (en) * 2013-06-13 2016-06-14 Nike, Inc. Article of footwear with sole member
AU2016314145B2 (en) 2015-08-31 2021-12-02 Ronald Frederick SCHUMANN Shoe sole
US11026472B2 (en) 2016-07-22 2021-06-08 Nike, Inc. Dynamic lacing system
CN106726049A (en) * 2017-01-22 2017-05-31 张钲坪 One kind digitlization rehabilitation KAFO
US11129447B2 (en) 2018-09-06 2021-09-28 Nike, Inc. Dynamic lacing system with feedback mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE106810C (en) *
DE358247C (en) * 1922-09-07 Wilhelm Betz Apparatus to remedy foot paralysis
DE397582C (en) * 1922-08-04 1924-06-26 Arthur Brebeck Metal bracket with longitudinal stiffening bulge that can be attached to the heel and joint of the shoe
GB525963A (en) * 1939-03-01 1940-09-09 Walter Miller Metcalf Improvements in devices to support the feet of a pedestrian and to facilitate walking
US3585993A (en) * 1969-07-22 1971-06-22 Aljie Heedly Toe lift device for a dropped foot

Also Published As

Publication number Publication date
BR8005408A (en) 1981-03-10
JPS5636946A (en) 1981-04-10
CA1140338A (en) 1983-02-01
IT7909524A0 (en) 1979-08-31
US4331152A (en) 1982-05-25
IT1203275B (en) 1989-02-15
EP0025020A2 (en) 1981-03-11
ATE5935T1 (en) 1984-02-15
DE3066270D1 (en) 1984-03-01
ES252138U (en) 1980-11-01
ES252138Y (en) 1981-04-16
AR221281A1 (en) 1981-01-15
GR69696B (en) 1982-07-08
EP0025020A3 (en) 1981-08-26

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