EP0330974B1 - Chaussure en deux parties, en particulier adapté aux terrains enneigés - Google Patents

Chaussure en deux parties, en particulier adapté aux terrains enneigés Download PDF

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Publication number
EP0330974B1
EP0330974B1 EP89103013A EP89103013A EP0330974B1 EP 0330974 B1 EP0330974 B1 EP 0330974B1 EP 89103013 A EP89103013 A EP 89103013A EP 89103013 A EP89103013 A EP 89103013A EP 0330974 B1 EP0330974 B1 EP 0330974B1
Authority
EP
European Patent Office
Prior art keywords
sock
footwear
shoe
panels
bootleg
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 - Lifetime
Application number
EP89103013A
Other languages
German (de)
English (en)
Other versions
EP0330974A2 (fr
EP0330974A3 (fr
Inventor
Mario Benatti
Francesco Bertone
Elena Ridella
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.)
S T L Superga SpA
Superga SpA
Original Assignee
S T L Superga SpA
Superga SpA
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 S T L Superga SpA, Superga SpA filed Critical S T L Superga SpA
Publication of EP0330974A2 publication Critical patent/EP0330974A2/fr
Publication of EP0330974A3 publication Critical patent/EP0330974A3/fr
Application granted granted Critical
Publication of EP0330974B1 publication Critical patent/EP0330974B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B19/00—Shoe-shaped inserts; Inserts covering the instep

Definitions

  • the present disclosure concerns footwear,made of two separate parts which can be assembled and disassembled as desired, particularly useful in cold climate and bad weather; more specifically it refers to a footwear to be used on snowy ground, in particular for holiday and/or sport.
  • a footwear is already known from DE-U-80 05 418.
  • Footwear made of separate pieces have been known since long; apart from overshoes or galoshes to be worn on the normal shoes, which cannot be compared with the subject matter of the present invention, mention can be made of after-ski boots or of some special types of shoes for cross-country ski.
  • shoes are formed by an outer body, which will be hereinafter indicated as “shoe” or “bootleg” depending on its height, into which is introduced a separate sock, which can be freely fitted in the body and removed therefrom, and is directly inserted on the user's foot.
  • the body has the task of protecting the inner sock and the user's foot against mechanical injuries they may suffer in use and of providing a sole having appropriate flexibility and stiffness characteristics as regards walking, whilst the sole affords adequate features of impermeability and thermal insulation to keep the user's foot dry and warm in spite of the bad atmospheric and environmental conditions.
  • foamed polyurethane materials of the close cell injection type are generally used to obtain a single-piece sock.
  • the foam is sometimes caused to collapse so as to thicken it and to create an area of greater stiffness with respect to the other parts, in particular at the insole, to give the foot a sufficiently rigid support; however, this method gives rise to a drawback represented by the loss of thermal insulation which takes place at the thicker area.
  • these polyurethane materials which - as to impermeability and thermal insulation are quite appropriate - have some defects: in particular they require the use of dangerous materials, as the isocyanates utilized to produce polyurethane, and may create toxicity problems for the user, if the polymerization chemical reaction has not been carried out properly and minimum amounts of non-reacted isocyanate remain in the product;further, they hydrolyze by themselves, so that after some time their mechanical characteristics deteriorate and this degradation is particularly significant if the material comes into contact with water or remains in an ambient at high humidity level; at last they are liable to tear and anyhow scarcely resistant to mechanical damages.
  • the problem has been solved by referring the height of the inner sock to that of the outer body and committing to the latter the protection of the inner sock against external damages.
  • the outer body is constituted by a boot, as for instance a conventional "trunk" of plastic material, but with a relevant increase in the footwear's weight; on the contrary, for shoes as those especially used for cross-country ski, the inner sock does not extend substantially over the shoe's edge, i.e. remains at the level of the user's malleoli.
  • the present invention aims to provide a two-piece footwear, particularly suitable in bad climate and/or on snowy ground, which is formed by a low outer body and of a high, inner removable sock, and is devoid of all the above indicated disadvantages.
  • the subject matter of the invention is a footwear which can be divided into two separate parts and is substantially composed of an outer protective shoe made of plastomeric or elastomeric material, having appropriate stiffness and resistance, and of an inner sock made of a soft, impermeable and thermally insulating material,which can be freely introduced and removed with respect to said outer shoe, characterized in that it comprises, in combination with each other :
  • the footwear according to the invention is composed of a low outer body (1), hereinafter called “shoe”, substantially able to protect insole, sidewalls, heel and user's instep, and of an inner sock (2), which can be freely removed and inserted with respect to said body, composed of a portion called “foot”, substantially coincident with the shoe, and of a portion called “bootleg”, extending outside the body over the level of the user's instep towards his knee.
  • a low outer body (1) hereinafter called “shoe”
  • shoe substantially able to protect insole, sidewalls, heel and user's instep
  • an inner sock (2) which can be freely removed and inserted with respect to said body, composed of a portion called “foot”, substantially coincident with the shoe, and of a portion called “bootleg”, extending outside the body over the level of the user's instep towards his knee.
  • the body can be made in any whichever manner, for instance by assembling separate parts made of a same or of a different material; however, in a particularly convenient embodiment, it is constituted by a monolithic unit, i.e. a single piece, obtained by moulding from elastomeric materials or plastic resins of the injection type, and comprises a sole portion (11) of appropriate thickness and an uppers portion (12) which is thinner and consequently softer and more flexible.
  • the vamp - at the instep - is provided with a cut (13) extending along the toe-heel axial direction so as to provide two skirtings (14) and (15) which might have such a width as to be partially superimposed.
  • one of said skirtings is provided on its outer surface with a strap (16) linked to it for instance by a boss or any other suitable means, of such a width as to cover the instep and specifically said cut.
  • the strap carries, mounted onto it, a fastening element (17)able to be connected to a corresponding device, as for instance a hook (18) mounted on the facing skirting, so as to obtain the shoe closure and to assure consequently - in use - a firm anchorage of the sock inside the shoe and to prevent the penetration of foreign material, as snow, mud, earth and the like through the cut provided on the shoe.
  • a fastening element (17) able to be connected to a corresponding device, as for instance a hook (18) mounted on the facing skirting, so as to obtain the shoe closure and to assure consequently - in use - a firm anchorage of the sock inside the shoe and to prevent the penetration of foreign material, as snow, mud, earth and the like through the cut provided on the shoe.
  • Figure 3 represents a straight axial section of the shoe : it can be noted that the sole has on its inner surface some lightening blind recesses (19).
  • the inner surface of the sole has a profile able to fit preferably with the corresponding external surface of the sock's sole which is properly stiffened, as explained herebelow.
  • the inner sock As regards the inner sock, first of all the material constituting it is a close-cell polychloroprene rubber foam, a convenient example of which is the material commonly known as "Neoprene”, registered Trade Mark of Du Pont; this foam does not hydrolyze, so that it neither shows any degradation of its mechanical characteristics for this reason, nor involves any toxicity problem.
  • the semi-finished product used to build up the sock is a slab (21) of the above indicated foam, covered on both faces by a fabric (22), (23) of any suitable textile fiber, but more specifically of nylon, which protects the foam against external mechanical injuries, in particular abrasion, tears, strokes from sharp bodies.
  • the sock is formed of any whichever number of panels of proper shape, cut from the slab and joined together end-to-end; an appropriate solution is represented by the set of four panels shown in FIG.4.
  • the jointing is performed by any suitable method, in particular by bonding with adhesive agents. This method assures the mechanical resistance of the joining and the impermeability even in the joining area.
  • the sock is obtained by joining four different panels : one (24) corresponding to the sole, one (25) joined in tubular form, corresponding to the bootleg and the heel, and two (26), (27) corresponding to the sidewalls and joined together at the instep.
  • the panels are seamed along the jointing lines; however, to maintain the impermeability of the panel also at the seaming zone, seams (29) are not passing through, but connect the two panels (21), (28), in FIG.5 joined together, only at the panel's outer surface and at the median portion external with respect to the thickness of the neoprene slab.
  • one or more of the joining lines are instead covered with a tape (30) of impermeable fabric, particularly a nylon net thermally welded to the underlying fabric.
  • an additional sole (31), made of elastomeric or plastomeric material and sufficiently thin but having appropriate resistance and flexibility characteristics, is bonded on the sock sole. Said sole extends in width as far as to cover the peripheral joining line which connects panel (24) with the other three panels.
  • Sole (31) enables the sock to be used separately from the shoe, as an independent footwear, for light uses, for instance driving a car (the driver must have a high sensitiveness on pedals) or walking on a ground free from particular obstacles or sufficiently smooth (streets and pavements, even if snowy or muddy) or indoor.
  • the upper part of the bootleg shows - preferably in rear axial position - a cut directed from the edge towards the heel, whose contour is connected to a sheet (32) of impermeable material such as polychloroprene, of substantially triangular shape, which is connected at a vertex to the cut and has the opposite base at said edge, so as to allow an enlargement of the sock opening without in any case affecting the impermeability and thermal insulation characteristics of the same.
  • panel (25) forming the bootleg is turned outward and downward and the turn-down is blocked and sewn, for instance circumferentially, about the bootleg's outer surface.
  • the above described footwear shows many advantages over the conventional two-piece shoes. First of all, it is quite light and consequently less tiring because the heavier part of the unit, namely the outer body, is a show and not a boot, and is conveniently lightened in its sole.
  • the inner sock has very good and permanent impermeability and thermal insulation characteristics : also, the fact of being covered on both faces with an adequate fabric, facilitates the insertion and the removal of the sock, as well as the introduction of the user's foot and the relative unthreading. Moreover, the fabric covering the sock's outer surface protects the part of the sock outside the shoe against any external mechanical injury which may occur in use, as strokes or creeping against sharp or pointed objects which would irreparably damage the polychloroprene slab.
  • the sock can be an independent footwear which, when worn, is highly appreciated for its lightness and comfort.
  • the sock is built up in a simple and cheap way by assembling separate panels by bonding and seaming, such methods assure the physical integrity of the sock for a long time and do not compromise in any way its impermeability characteristics.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (10)

  1. Chaussure en deux parties, essentiellement composée d'un soulier extérieur (1) de protection, fait d'un matériau élastomère ou plastomère ayant une rigidité et une résistance appropriées, et d'une chaussette intérieure (2) faite d'un matériau mou: imperméable et thermiquement isolant, que l'on peut librement introduire et retirer dudit soulier extérieur, caractérisée en ce qu'elle comprend, associés l'un à l'autre:
    - ledit soulier extérieur d'une hauteur sensiblement réduite, destiné à protéger le dessous, les côtés, le talon et le coup de pied de l'utilisateur, et
    - ladite chaussette intérieure, faite de panneaux (24, 25, 26, 27) en polymère de chloroprène expansé réunis bout à bout, lesdits panneaux étant munis sur leurs deux faces d'un tissu de renfort (22, 23) fermement fixé à la couche de mousse, la chaussette comprenant un pied qui correspond au soulier extérieur et une jambe qui s'étend en hauteur extérieurement audit soulier.
  2. Chaussure selon la revendication 1, caractérisée en ce que le soulier extérieur est pourvu, au niveau du coup de pied, d'une encoche axiale (13) suivant la direction talon-orteils, afin de produire deux parties marginales (14, 15) en vis-à-vis, le soulier étant en outre pourvu d'une bande (16) de matériau imperméable, suffisamment large pour recouvrir l'encoche, réunie à l'une des parties marginales et munie d'un élément de fixation (17) qui peut être assemblé et détaché par rapport à un dispositif de crochet (18) fixé en permanence à la partie marginale opposée.
  3. Chaussure selon la revendication 1, caractérisée en ce que la semelle (11) du soulier comporte au moins une cavité borgne (19) sur sa surface intérieure.
  4. Chaussure selon la revendication 1, caractérisée en ce que la chaussette (2) est formée de quatre panneaux (24, 25, 26, 27) réunis ensemble, parmi lesquels l'un (24) correspond à la semelle, l'autre (25), enroulé sur lui-même en forme de tube, correspond à la jambe et au talon, et deux (26, 27) correspondent respectivement à chaque partie latérale et au coup de pied intercalé entre lesdites parties latérales.
  5. Chaussure selon la revendication 1, caractérisée en ce que la chaussette est pourvue d'une semelle supplémentaire (31) en matériau élastomère ou plastomère, fixée de façon permanente sur la surface extérieure dudit panneau (24) qui correspond à la semelle du soulier, et s'étendant transversalement jusqu'à recouvrir la ligne périphérique qui réunit le panneau avec les trois autres.
  6. Chaussure selon la revendication 1, caractérisée en ce qu'une bande (30) de matériau textile imperméable à l'eau est appliquée comme revêtement sur la surface intérieure de la chaussette et sur l'une des lignes au moins qui réunissent lesdits panneaux.
  7. Chaussure selon la revendication 1, caractérisée en ce que le tissu de renfort (22, 23) appliqué sur la surface des panneaux est du nylon.
  8. Chaussure selon la revendication 1, caractérisée en ce que la chaussette est pourvue de cordons de soudure (29) le long des lignes qui réunissent les panneaux, les cordons de soudure concernant uniquement la surface extérieure des panneaux et la ligne médiane extérieure de leur épaisseur.
  9. Chaussure selon la revendication 1, caractérisée en ce que la partie formant jambe de la chaussette est pourvue au niveau de son ouverture d'une encoche dirigée vers la partie formant talon, les parties marginales de l'encoche étant reliés à une languette (32) faite du même matériau que celui qui forme les panneaux, de forme sensiblement triangulaire, reliée par son sommet à l'extrémité de l'encoche et par sa base à l'ouverture afin de permettre l'élargissement de cette dernière.
  10. Chaussure selon la revendication 1, caractérisée en ce que le bord supérieur de la jambe est retourné vers le bas et vers l'extérieur et est cousu sur la surface extérieure de ladite jambe.
EP89103013A 1988-03-04 1989-02-21 Chaussure en deux parties, en particulier adapté aux terrains enneigés Expired - Lifetime EP0330974B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8820791U IT213709Z2 (it) 1988-03-04 1988-03-04 Calzatura scomponibile particolarmente adatta perl'impiego su terreni innevati.
IT2079188U 1988-03-04

Publications (3)

Publication Number Publication Date
EP0330974A2 EP0330974A2 (fr) 1989-09-06
EP0330974A3 EP0330974A3 (fr) 1991-03-27
EP0330974B1 true EP0330974B1 (fr) 1994-06-29

Family

ID=11172118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103013A Expired - Lifetime EP0330974B1 (fr) 1988-03-04 1989-02-21 Chaussure en deux parties, en particulier adapté aux terrains enneigés

Country Status (5)

Country Link
EP (1) EP0330974B1 (fr)
AT (1) ATE107839T1 (fr)
DE (2) DE68916448T2 (fr)
FR (1) FR2627959B1 (fr)
IT (1) IT213709Z2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424716A1 (fr) * 1978-05-03 1979-11-30 Delery Marc Chaussure de sport
DE8005418U1 (de) * 1979-03-02 1980-10-02 Victor Cuoio Shoes S.P.A., Vaccolino, Ferrara (Italien) Stiefel, insbesondere Apres-Ski-Stiefel
US4550446A (en) * 1982-03-31 1985-11-05 Jack Herman Insert type footwear

Also Published As

Publication number Publication date
DE8902511U1 (de) 1989-04-27
DE68916448T2 (de) 1995-02-09
ATE107839T1 (de) 1994-07-15
IT213709Z2 (it) 1990-01-22
EP0330974A2 (fr) 1989-09-06
EP0330974A3 (fr) 1991-03-27
IT8820791V0 (it) 1988-03-04
FR2627959B1 (fr) 1995-05-05
DE68916448D1 (de) 1994-08-04
FR2627959A1 (fr) 1989-09-08

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