EP0466895B1 - Shoe - Google Patents

Abstract

A shoe, in particular a sports shoe and/or street shoe, comprises a shell (1) consisting of an outer sole (4), an insole (3) and a shaft (2) which may be lined and which is bent over a rod. Inside the shoe, the insole (3) is essentially flat and has at least one locking recess (6) or one locking projection (7) which is releasably connected to a coupling element (9, 10) of a foot bed (8) with a heel elevation.

Description

The invention relates to a shoe, in particular a sports shoe and / or street shoe, with a shoe shell consisting of an outsole, an insole which can be connected to a footbed and an optionally lined shaft which is twisted over a last.

Conventional sports or street shoes are usually designed so that the material of the shell is pinched over a last, which corresponds approximately to the shape of a foot. The shoe construction can be tacky, with a sewn-in insole or in one called California or Mocassin or the like. common types. The volume of a shoe manufactured in this way over such a last corresponds to the last as soon as the last is removed from the shoe. It is known to shape the last a little further in volume in order to be able to insert a cover sole or, in the case of health shoes, a loose insert in such a shoe.

The necessary or desired heel height of such shoes is produced by attaching a separate heel to the outside of the sole and the heel is rigidly connected to the shoe as part of the shoe construction.

In principle, such a conventional shoe thus consists of a unit consisting of a shaft, insole, outsole and heel, wherein the shaft can be lined in the usual way.

From FR-A 2 427 801 a shoe of the type mentioned at the outset has become known, wherein a footbed is integrated in a one-piece sole consisting of several parts and the footbed is covered by a thin cover sole made of soft material.

WO 87/05192 shows a multi-part sole element for a shoe, an outsole having a heel being designed with locking elements for fixing an insole.

Shoe constructions in which the shoe is made up of two units are only in the area of the ski shoe known, in which, however, a rigid outer shell is used. Such shoes are therefore not suitable as street or sports shoes, since the rigid shell construction in the case of a ski shoe is primarily necessary with a view to the secure clamping in binding parts. In such ski boots, it is known to attach a complete inner shaft or inner boot within such a rigid shell, and therefore a shoe with a conventional construction consisting of a shaft and a sole must be manufactured, which can subsequently be used inside such a ski boot .

Interchangeable insoles, as are known in particular in the form of anatomical shoe inserts, are generally relatively thin in street or sports shoes and therefore permit correct anatomical positioning of the foot only to a limited extent. In particular in the front area of such shoes equipped with exchangeable insoles, the tread area can only be corrected to a small extent. Interchangeable insoles of this type are usually loose in the shoe and can therefore slip easily, which means that a secure grip is not guaranteed. In order to fix such anatomical insoles, it is generally necessary due to the small thickness or thickness of such insoles and because of the softness of the material selected for such insoles to glue these insoles to the insole, so that there is no longer any interchangeability.

The invention now aims to develop a shoe, in particular sports and / or street shoe, so that greater adaptability to different foot shapes and better anatomical support is made possible with simple manufacture. To achieve this object, the shoe according to the invention essentially consists in that the insole is essentially flat in the interior of the shoe and has at least one locking recess or a locking projection, which (r) is detachably connected to a coupling member of a footbed having a heel increase. With such a construction, a conventional shoe is created, which consists of two interacting, easy-to-manufacture units. The shoe shell consists of the upper, insole and outsole in a conventional manner and can be lined if necessary. The desired increase in heel and the necessary room for correction for anatomical adjustments is entirely integrated into a second, separately producible and replaceable component, which can subsequently be inserted as a footbed in such a shoe and locked in the shoe. It is essential that the interchangeable footbed can be more anatomically shaped due to the available height and can be securely locked inside the shoe. In contrast to ski boots, the shell consists of the parts of the shaft, insole and outsole, which are used in a conventional adhesive sticking process or an inserted sticking process with sewn-in insole or as a mocassin or the like. can be assembled. The shoe lining remains part of the shaft and is not replaceable, whereas the anatomical support or correction is possible with the interchangeability of the entire footbed or the tread. In comparison to conventional shoes, such a shell, which is designed without a heel and whose insole is essentially flat inside the shoe, cannot be used at all without an insert. Such a shoe cannot be worn at all without the replaceable functional part, namely the footbed.

For the correct tread position of the foot in the shoe, ie the necessary or desired heel height, an appropriate design of the foot bed is decisive, the shell of the tread surface being flat and not a heel height includes. All functional properties, such as shock absorption, energy recovery, etc., can be integrated into the replaceable footbed, whereby the fixing takes place by means of depressions and elevations in the insole of the shoe shell, which prevents slipping in the shoe shell.

The last, which is used for the production of such a shoe, is considerably larger in volume and is designed in such a way that the volume of the replaceable footbed is taken into account in the total volume. The insole is attached to the last, as with the conventional sticking process, whereupon the upper can be pinched over the last with conventional machines and glued to the insole. As mentioned above, other lasting processes with sewn-in insole or under the name California or Mocassin or the like can also be used. common types are used. The sole can also be glued, sewn, combined glued and sewn in a conventional manner with the twisted shoe shell, or directly injected and / or foamed. After the sole has been fastened, the last can be removed and the replaceable footbed can be inserted into the shoe shell in such a way that depressions or elevations in the insole latch with the corresponding elevations or depressions or coupling members of the footbed.

With the construction of a street or sports shoe according to the invention, the fact is taken into account that the human foot is not only different in length, usually referred to as shoe size, but also varies considerably in scope. Such different widths for feet with the same length can only be taken into account in the conventional manufacture of the shoe in the form of different shoe sizes, so that for shoes whose lasts do not adequately match the shape of the wearer's foot, an exact hold, as is required in particular for sports shoes, cannot be achieved. A storage of different widths with the same shoe size is not sensible for economic reasons and the construction according to the invention now makes it possible to subsequently take into account different widths of the foot with one and the same shoe size.

In the construction according to the invention, the width volume can be precisely adapted in various ways. A precisely coordinated volume insert can be arranged between the insole and the replaceable footbed or the replaceable footbed can have a special volume design. With such an additional volume insert or width insert, a conventional shoe can only be adjusted to a small extent and in this way approximately 5 mm volume in the circumference of the ball can be compensated for. The tread surface must namely be narrowed or widened in the case of more than such a width of 5 mm. Due to the special volume design of the replaceable footbed in a shoe according to the invention, it is now possible to achieve several such widths of about 5 mm volume in the ball circumference with the same shoe size. It is thus possible to precisely adapt a plurality of different widths with a shoe shell of a certain size, only different insoles and footbeds being used.

The exchangeable footbed can also be specially designed and matched for different requirements and, in addition to the variation in the degrees of hardness, it is possible to make the footbed in different materials, such as polyurethane, cork or the like. to manufacture. The surface structure or the design of the covers of the footbed can be adapted to the requirements and it massage nubs or covering materials of different types can be used.

For the purpose of better absorption of shocks and for energy recovery, for example, air channels, hoses, air bubbles or chambers filled with different materials can be provided, the training for this purpose preferably being such that the footbed with cavities for the absorption of air and / or shock-absorbing masses is trained. For better ventilation in the area of the sole, the cavities can preferably be designed as channels running inside the footbed, which are connected to openings on the top of the footbed. The cavities can run in the longitudinal direction of the footbed, in the transverse direction or in different directions adapted to the conditions in different areas of the footbed. For minor additional corrections, as already mentioned above, additional volume inserts can be provided, the design preferably being such that the footbed is formed by a base part which can be detachably connected to the insole and an anatomically shaped insert which can be connected to the base part.

The footbed can be anatomically shaped depending on the requirements due to the significantly more voluminous shape possible according to the invention. The most important feature of such an anatomically correctly shaped footbed is the even pressure distribution over the entire footstep area and thus the better circulation and massage of the footstep area and the reflex zones contained therein. An anatomically shaped footbed gives the foot a much better grip when exercising, since the foot can center itself when performing and is less likely to slip in the shoe during lateral lunges. The pronounced heel bed also gives the foot good lateral support, which means that the rear cap construction can be made softer, which reduces the risk of painful pressure points and blistering on the heel. Depending on the anatomical requirements, the longitudinal and transverse arch of the foot can be more or less supported, whereby the entire footbed can be removed from the shoe for drying or washed depending on the material.

The invention is explained in more detail below on the basis of exemplary embodiments schematically illustrated in the drawing. 1 shows a section through the shell of a shoe according to the invention; 2 shows a section through a footbed according to the invention; 3 shows a section through a shoe according to the invention, the footbed being anchored to the insole in the interior of the shoe; 4 shows a section through a last, which can be used to produce a shoe according to the invention, with the shaft and insole surrounding it; 5 shows a last for producing a shoe according to the invention; 6 and 8 each show a section through the instep area of a shoe according to the invention, an adaptation of a predetermined shoe shell to different widths being indicated; 9 and 10 each show a section through the heel area of a shoe according to the invention with the foot received therein in different positions of the foot relative to the shoe; and FIGS. 11 to 15 each show a section through different embodiments of the anatomically shaped replaceable footbed in the heel area.

In Fig. 1, 1 denotes a shoe shell of a shoe according to the invention, which consists of a shaft 2, an insole 3 and an outsole 4. The shell of the shoe is manufactured in a manner known per se above a last, a gusset 5 being indicated in each case for connecting the upper, which may be formed with a lining, to the insole. The insole 3 has in Embodiment shown a recess or recess 6 and in the heel area an elevation or a projection 7, which serve for locking the anatomically shaped footbed 8 shown in FIG. 2. The footbed has a projection 9 corresponding to the shape of the recess 6 of the insole and a recess 10 corresponding to the projection 7 of the insole. The wall of the anatomically shaped footbed is indicated by 11 and the tread surface by 12.

3 shows the shoe composed of the two individual components of FIGS. 1 and 2, the locking or locking of the footbed 8 on the insole 3 being clearly shown.

4 and 5, 13 is a last for the manufacture of a shell of a shoe according to the invention, wherein, as in FIGS. 1 and 3, it is clearly evident that the insole, in contrast to conventional shoes, is essentially flat. The last used is, in contrast to the last used for the production of conventional shoes, not adapted to the shape of the foot but formed with an essentially flat tread 14 and a recess 15 corresponding to the projection 7, since the anatomically shaped footbed to be coupled with the insole is much stronger and with a heel insert is formed, while in conventional shoes, for which the last largely corresponds to the actual foot shape, only thin, essentially flat insoles can be used.

6 to 8 show in more detail how, when using a shell 1 with a predetermined size, by adapting the design of the footbed 8 or additionally using insoles, an adaptation to different foot widths can be carried out. 6 is a footbed for a normal width releasably placed on the insole 3. 7, an exchangeable, flat width insert 16 is used to adapt to a somewhat smaller width, while in the embodiment according to FIG. 8 a specially designed footbed is used for a very narrow width, which is compared to that in FIGS 7 footbed shown has a greater height and a higher wall, is used. In FIG. 8, the tread of the footbed 8 of FIGS. 6 and 7 is shown in dashed lines at 12 '. It turns out that it is thus easy to adapt to different widths for a given shell for a certain shoe size by varying the footbed or through an additional insert.

9 and 10, the influence of the wall of the anatomically shaped footbed 8, which is raised particularly in the heel area, is clearly visible. While in the normal position of the foot 17 shown in FIG. 9, the foot is centered at every step to the lowest point of the anatomically shaped foot bed 8, the laterally raised wall 11 enables optimum lateral support in the case of a lateral lunge step schematically indicated in FIG. 10. Despite the lateral position, the foot is held relatively securely in the footbed 8.

11 to 15 different embodiments of an anatomically shaped footbed 8 are shown. In the embodiment according to FIG. 11, air holes 18 are provided in the footbed 12 in the footbed, which open into air channels 19 arranged on the side facing the insole. Deviating from these air holes or channels 18 and 19 of FIG. 11, which are open on both sides of the foot bed 8, the air holes 18 of FIG. 12 open into channels 20 which run essentially in the longitudinal direction of the foot bed, as a result of which a connection from which ends at the tread surface 12 Air holes is created, which can be used for ventilation, shock absorption or energy recovery. The air holes and air channels can be round, oval or with any other shape.

13, a shock absorption made of a special material 21 is indicated in the footbed, the footbed additionally having a cover 22 made of leather, textile or, for example, massage material.

In the embodiment according to FIG. 14, in addition to air holes 18 which open into air channels 19 in a manner similar to the embodiment according to FIG. 11, massage nubs are additionally provided on the tread surface, which are indicated by 22 ′.

For shock absorption or energy recovery, chambers or cavities 23 can also be provided in the footbed filled with air or a corresponding shock-absorbing mass.

Claims (4)

1. A shoe, in particular a sports shoe and/or street shoe, with a shoe shell (1) comprising an outer sole (4), an inner sole (3), which may be joined to a moulded insole, and a shoe upper (2), which is shaped over a last (13) and may be padded, characterised in that the inner sole (3) is constructed essentially flat inside the shoe and has at least one locking groove (6) or a locking projection (7), which is detachably connected to a coupling member (9, 10) of a moulded insole (8) provided with a raised heel section.
2. A shoe according to Claim 1, characterised in that the moulded insole (3) is provided with cavities (18, 19, 20, 23) for the intake of air and/or to accommodate shock-absorbing elements.
3. A shoe according to Claim 1 or 2, characterised in that the cavities are constructed in the form of channels (18, 19, 20) extending in the interior of the moulded insole (8) and connected to openings on the upper side (12) of the insole.
4. A shoe according to Claim 1, 2 or 3, characterised in that the moulded insole (8) is formed from a base section, which may be detachably joined to the inner sole (3), and an anatomically moulded insert, which may be joined to this base section.

Images