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TECHNICAL AREA
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The present invention relates to a shoe sole construction, in particular for a climbing or hiking boot, a shoe construction, for example a boot or hiking boot, with such a shoe sole construction and a method for its production.
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STATE OF THE ART
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Known footwear, in particular shoes or boots, for example climbing or hiking boots, comprise a shaft construction for grasping, stabilizing and protecting the foot of the wearer and a shoe sole construction as a shoe bottom for protection of the foot and for a stable and secure footing.
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The upper part of the shoe encloses toes, back of the foot, ankle and possibly parts of the lower leg.
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The shoe sole construction is attached to the shaft and has a footbed directed towards the shaft or foot of the wearer. Shaft and shoe sole construction are joined together.
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It is also known to enclose a sturdy stiffening element in the shoe sole construction or to insert it into the shaft, which ensures stability and fit.
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Schaftfern, ie on the bottom side, the shoe sole construction has a multiple with a preferably abrasion-resistant profile outsole.
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Between the outsole and the insole, a midsole may be arranged. This midsole is often made of shock-absorbing material, such as PU, and serves to dampen the blows caused by running.
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Crampon-resistant mountain boots also have crampons in the rear and possibly also in the front area of the shoe sole construction. At such mountain boots particularly high demands are made regarding the stiffness of the footwear. At the same time, such shoes should cushion the bumps that occur due to the often impassable terrain when walking.
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In order to meet this diverse requirement profile, the shoe sole construction thus often consists of different layers and materials with different densities and shapes, which, however, makes the shoe sole construction correspondingly heavy and complex to manufacture.
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PRESENTATION OF THE INVENTION
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It is an object of the present invention to provide an improved shoe sole construction with such a shoe sole construction.
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This object is achieved by the feature combination according to claim 1. Accordingly, a shoe sole construction having a foot side and a bottom side is proposed. The shoe sole construction comprises an outsole arranged on the bottom side, a midsole construction adjoining the outer sole on the foot side, and a stiffening layer arranged in the midsole construction. The object is now achieved in that the midsole construction has on the foot side a recess extending against the bottom side. This recess is thus a recess which is arranged on the foot side of the midsole construction. The stiffening layer is inserted in this recess. The recess is thus lined or covered by the stiffening layer. The stiffening layer closes off the shoe sole construction at least in sections on the foot side and forms a footbed.
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In a further development, the stiffening layer is provided with a foot-side cover layer, as described below.
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In the context of the present invention, the term "foot-side" refers to the side of the reference element on which the foot of the wearer is when the wearer wears the footwear. The term "bottom side" refers to the side opposite the foot of the reference element of the reference element.
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In the context of the present invention, the expression "that the stiffening layer closes off the shoe sole construction at least in sections on the foot" means the following: The stiffening layer with its foot-side surface forms the foot-side end of the shoe sole construction. This, in contrast to the prior art, where stiffening elements are cast into the midsole or are inserted into the shaft, with which the known stiffening element just does not form this foot end.
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The stiffening layer forms the footbed, which may be flat, but preferably is formed opposite to the outer contour of the foot, so may have bulges and depressions to optimally absorb the foot support and avoid pressure points.
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The outsole is also referred to as an outsole and closes off the shoe sole construction towards the bottom side. Depending on the application of the shoe sole construction, the outsole may be profiled or profileless. Preferably, the outsole is made of rubber or a rubber compound.
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The midsole construction may be single-layered or have multiple layers, which may be constructed of different materials. The midsole can be made of EVA or PU.
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The other layers, such as the outsole or the stiffening layer or the cover layer, can be constructed in one or more layers.
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The present invention is based on the finding that the footbed can be formed by a stiffening layer, wherein the stiffening layer can be integrated into the midsole construction and immediately forms the footbed. This results in the advantage that a standing height of the shoe sole construction can be reduced, which allows a safer footing in footwear. The lower stand reduces the tendency to buckle and therefore increases slip resistance. Also, material can be saved, which reduces weight. In addition, any crampon mounts can rest on the stiffening layer, which allows a particularly stable construction and optimum power absorption during use.
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In a further development, the depression, apart from an edge region, extends on the foot side over the entire midsole construction. In a further development, an edge region which revolves completely around the midsole construction can be formed, which edge region offers a bearing surface for the stiffening layer. This edge region can be designed so that a flange-like edge region of the stiffening layer can be received under secure abutment. The edge region may be formed by midsoles or sections of any crampon shots.
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Advantageously, the stiffening layer is anatomically adapted, wherein the recess can then be formed in opposite directions, so that the stiffening layer is supported at least part of the surface or the entire surface of the recess limited portions of the midsole construction. Any intermediate spaces could be foamed or filled up with further functional layers.
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Advantageously, the flange-like edge region of the stiffening layer is completely circumferential on the edge region of the midsole construction, if necessary. The crampon mounts are formed. Thus, the stiffening layer can rest circumferentially in the edge region of the stiffening layer on the edge region of the midsole construction.
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The recess and the stiffening layer received therein have the advantage that the footbed formed by the stiffening layer comes to rest deeply (with respect to the standing height) and securely in the midsole construction. Also, the anatomical fit of the footbed can be easily realized in some embodiments of the invention. In addition, the standing height of the shoe sole construction, that is to say the distance between the foot side and the bottom end, can be minimized, which allows a particularly stable position. In addition, by the recess material of the midsole construction is excluded, which allows a weight reduction. At the same time, the material consumption decreases and easier production is possible.
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In a further development, the midsole construction is designed such that the edge region of the midsole construction projects beyond the stiffening layer at least in sections, preferably longitudinally toward the foot side, or ends flush therewith. As a result, the foot side of the midsole construction is exposed to the shaft construction, so that the latter can be fastened directly to the midsole construction, in particular with this suture and / or glued. This allows a particularly robust shoe sole construction of low height and simplifies the production while improving the precision of the connection, which further minimizes pressure points and cost of materials.
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In a development, the midsole construction has at least one foot-side midsole and a bottom-side midsole, that is to say at least or exactly two layers. The midsole construction can also be made up of more than two layers. Due to the multi-layer structure, the nature of the midsole construction can be optimally adapted to the requirement profile.
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In a further development, the depression may extend through the foot-side midsole, at least in sections and preferably in a ball area of the foot-side midsole. The foot-side midsole may thus have a through opening. Forward, i. to the ball area, and / or to the rear, i. to the heel area, this opening may be bounded by the foot-side midsole by an end portion or by an additional, preferably integrally molded element, for example a crampon seat.
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In a further development, the depression ends at least in sections, preferably in the heel region in the midsole construction, preferably in the foot-side midsole, so that it is virtually formed there as a blind hole. The midsole construction thus has a depression that delimits the depression, at least in sections, toward the bottom.
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In a further development, a gap is formed between the midsole construction and the stiffening layer. The gap may be filled with a material, preferably a foam. This material may have a lower specific gravity than the material removed to form the gap. This saves weight. This material can be functional, ie, for example, absorb mechanical shocks particularly well or increase or decrease the flexibility of the midsole construction.
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This gap can be further configured such that it tapers in its height to the rear, ie toward the heel area, i. E. the gap is less high in the heel area than in the ball area. This also allows a functionality of the shoe sole construction over the length to be tailored. Thus, the shoe sole construction in the ball area, for example, be more flexible than in the heel area.
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In a further development, the stiffening layer has a lower specific weight than the midsole construction. The stiffening layer may in particular be formed of carbon. Preferably, the stiffening layer has a honeycomb structure, in particular a honeycomb structure, and is thus a honeycomb construction. The stiffening layer may generally be formed as a sandwich plate with a honeycomb core. The support core may also have a different cell structure. Also, other composites, fiber composites, PA, TPU, light metals and / or other plastics and / or foams may be used.
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Preferably, the stiffening layer is anatomically shaped and thus forms a comfortable and supportive footbed. The footbed integrated in the shoe sole construction also allows for improved further processing, in particular a precise and accurate attachment of the shoe upper on the shoe sole construction, since it does not have to be blindly attached to a flat attachment surface, but there is the possibility of orientation on the molded footbed.
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Depending on the field of use of the shoe sole construction, this may also have a crampon seat. It can also be provided two crampons shots, a rear and a front.
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The crampon seat may have a training for receiving the stiffening layer or another position of the shoe sole construction in a development. This position, ie, for example, the stiffening position, can then protrude into this confiscation. The confiscation can be upwardly open (that is to say as upwardly directed step), in the middle (that is to say as upwardly and downwardly delimited groove) or downwardly open (that is to say as downwardly directed step). Alternatively or additionally, the collection can extend along the foot side, ie projecting from the left and / or from the right into the main body of the crampon holder, or additionally or alternatively be arranged centrally.
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This confiscation allows at least partial positive engagement between crampon pickup and the intervening corresponding location. This ensures good contact between the crampon seat and the remaining shoe sole construction and a compact construction. In particular, a power dissipation over the crampon seat can be optimized.
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In a preferred embodiment, the crampon seat directly adjoins the stiffening layer. Even more advantageously, the stiffening position engages in the collection, so that a good mechanical contact between crampon pickup and the stiffening position is ensured.
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The shoe sole construction can thus be provided as a single continuous part, which can be joined together with a flexible shaft construction to form a shoe structure without the need for further stiffening elements.
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The present invention also relates to a shoe construction comprising a shoe sole construction as described above. This shoe construction then further has a shaft construction, wherein the shaft construction is preferably fastened directly on the shoe sole construction. The shoe sole construction preferably forms, at best with a further covering layer, the footbed, which preferably has an anatomical fit.
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In a further development of the shoe construction, the shaft construction has a shaft bottom. The shaft bottom may be attached directly to the midsole construction and / or the stiffening layer. It can therefore be dispensed with further layers, in particular on stiff or thick layers in the shaft, ie in the upper fabric. Thus, less splices and / or seams in the Shoe construction are introduced, which simplifies the production, makes the shoe construction more reliable and saves material.
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The shaft bottom can be particularly flexible. In other words, one can dispense with an additional stiffening position on the foot and / or bottom side of the shaft bottom, so that the shaft bottom is flexible compared to the stiffening layer or shoe sole construction. So you need to attach no additional stiffening in or on the shaft construction. This results in material and weight savings and a shoe sole construction which is fabricable as a single contiguous part. You can, if necessary, insert a stabilization layer in the shaft construction to strengthen the shaft bottom from above so far that it is dimensionally stable for a precise and stable attachment of the shaft to the sole. However, this stabilization layer does not provide bending and torsional stability when running, this is done by the stiffening layer or the shoe sole construction.
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The shaft bottom can in particular be made of a textile or leather. Preferably, the shaft bottom is partially or completely flexible.
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The term "flexible" is to be understood here in contrast to the stiffening situation. In particular, the shaft bottom may be multi-layered and lining and cushioning the insole formed by the depression. The shaft bottom can have inherent stability in order to be well glued and / or sewn. The flexible shaft bottom has a bending or torsional stability which is less than 10%, preferably less than 1% of that of the stiffening layer.
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The deflection stability results from the deflection of the layer, ie the bottom or the stiffening layer, under a given load and for a given length of the layer. The torsional stability results from the torsion of the position, ie the ground or the stiffening position, under predetermined rotation of the layer and at a given length of the layer.
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Preferably, the shaft bottom is sewn to the midsole construction and / or the stiffening layer and / or glued.
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The shaft bottom preferably extends at least partially along the foot side of the possible cover layer or the stiffening layer.
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In a further development, the shaft bottom can be completely closed off the shaft construction on the foot side. As a result, a large adhesive surface between the shaft and the midsole construction or stiffening layer or cover layer is formed, which allows a secure connection of the shoe sole construction with the shaft construction. The bottom of the shaft can also be open at the bottom and attached only to the edge of the shoe sole construction, so that the wearer stands directly in the shoe sole construction.
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The present invention also relates to a method of making a shoe construction wherein a shoe sole construction having a foot side and a bottom side, preferably as described above, is provided with a stiffening ply forming a footbed, the shoe sole construction having on the foot side a recess extending towards the bottom side,
further providing a stem construction, and
wherein the shaft construction is mounted on the shoe sole construction.
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In a further development, the shaft bottom is glued to the shoe sole construction preferably directly on the shoe sole construction and / or sewn thereto. Preferably, the shaft bottom is flexible in this case.
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The rigidity can therefore already be ensured by the shoe sole construction itself. In addition, it is advantageous that the shaft bottom is placed very precisely, precisely and also simply in the recess and fastened there, in particular can be glued.
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BRIEF DESCRIPTION OF THE DRAWINGS
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Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings show:
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1 a first embodiment of the stiffening layer
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2 a first embodiment of the foot-side midsole with a first embodiment of a front and a rear crampon pickup;
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3 a first embodiment of a midsole construction according to the midsoles 2 and 4 ;
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4 a first embodiment of a bottom-side midsole;
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5 the midsole construction after 3 with the stiffening after 1 ;
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6 a second embodiment of the stiffening layer;
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7 a second embodiment of the foot midsole with a first embodiment of a front and a rear crampon pickup;
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8th a second embodiment of a bottom-side midsole;
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9 an outsole;
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10 a shoe sole construction with the components after 6 to 9 ; and
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11 a shoe construction with a shoe sole construction according to 10 ,
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DESCRIPTION OF PREFERRED EMBODIMENTS
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Based on 1 to 10 Now are preferred embodiments of a shoe sole construction 7 described. Regarding 11 becomes a shoe construction 9 with such a shoe sole construction 7 explained.
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The shoe sole construction 7 has a standing height or height H and a length L (s. 10 ). Every element or every layer of the construction 7 has a foot side F directed towards the foot of the wearer and a bottom side B directed towards the ground when walking.
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3 shows the midsole construction 5 according to a first embodiment. The midsole construction 5 is multi-layered and includes a foot-side midsole 51 , a bottom-side midsole 52 , Next are a rear crampon seat 3 and a front crampon pickup 4 intended. Center is depression 53 in the midsole construction 5 introduced, which extends against the bottom side B.
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1 shows the stiffening situation 6 with a heel area 61 and a ball area 62 , The stiffening situation 6 is a lightweight component, preferably a sandwich panel with a central cell structure, for example. A honeycomb structure. It is particularly stiff designed to give the Schuhsohlenkstriction with respect to bending and torsion the necessary dimensional stability. The stiffening situation 6 can be made of carbon. The stiffening situation 6 can for example be milled, which allows a particularly precise design.
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The stiffening situation 6 has a foot shape and is anatomically shaped, ie it is designed as a counter-shape to the foot of the wearer, so that the foot rests comfortably and well supported.
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The foot-shaped stiffening layer 6 has a completely peripheral edge area 64 on.
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6 shows the stiffening situation 6 in a side view, with a heel pad 611 for the heel and a ball pad 621 are visible for the ball of the foot. In the middle area of the location 6 there is a step 630 so the heel section 61 from a higher standing height than the bale section 62 is. In addition, it can be seen that the footbed is anatomically shaped, the heel and ball pads 611 . 621 that is, deepened, that is set down towards the bottom side B, with respect to the respective section of the edge region 64 runs.
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The heel area 61 has a heel pad 611 behind the heel edge section 612 on. The ball area 62 has a bale pad 621 front bale edge section 622 ,
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The stiffening situation 6 thus provides an anatomically adapted footbed, and the necessary rigidity to the shoe sole construction 7 to use as intended.
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Like from the 6 is further recognizable, is the edge area 64 which the heel edge section 612 and the ball edge section 622 includes, flange-shaped, so that the stiffening layer 6 at least in sections with the bottom side of the edge region 64 on the midsole construction 5 rests.
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2 and 7 show a part of the midsole construction 5 namely the foot midsole 51 with a first freestanding and substantially longitudinal arm portion 511 and a substantially parallel, namely mirror-inverted to the first arm portion 511 trained, second arm section 512 , The arm sections 511 . 512 form a foot-side edge area 530 the midsole construction 5 , The arm sections 511 . 512 extend from a heel area 516 forward, with the arm section 511 . 512 free ends with noses directed to the ground 55 exhibit. At the free ends are the forwardly directed bale slopes 56 attached, which is the front crampon holder 4 flat on the inclined surface 43 to contact.
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In a heel area 516 the foot midsole 51 extends in sections between the arm sections 511 . 512 a bottomed heel bottom 515 so that there is a gap, namely the depression 53 , between arm sections 511 . 512 and the heel bottom 516 is formed, which is open to the foot and the stiffening position 6 to record.
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The depression 53 extends over the heel ground 515 , the heel gap 531 , forward through the bale space 532 into the middle confiscation 45 the front crampon seat 4 and back to the central confiscation 35 the rear crampon pickup 3 ,
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At the heel end of the foot midsole 51 is a recess 570 for the rear crampon seat 3 intended. Bottom side, the recess 570 through the support surface 571 limited. Forward to the bale is the recess 570 through the heel slope 57 limited, at which the rear crampon intake 3 with inclined surfaces 33 is pending (see also 3 ).
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The foot midsole 51 can be made of EVA or PU.
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The embodiment according to 2 and 7 are slightly different, at least insofar as only the embodiment 7 a step 513 in the middle area shows. In addition, the embodiment according to 7 a broader heel heel 518 on.
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How out 7 recognizable, run the arms 511 . 512 towards the front, that is to the bale, the foot shape imitating around together, with the bottom side forward to the noses 55 towards a recess 54 for the bottom-side midsole 52 is provided (see below).
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2 and 7 also show the rear crampon pickup 3 and the front crampon pickup 4 , The crampons shots 3 . 4 each have a basic body 32 respectively. 42 with horn element 31 respectively. 41 on. The basic body 32 . 42 have a closing nose 34 . 44 on. The basic body 32 . 42 be on the foot-side surface of the foot midsole 51 hung up. The rear crampon pickup 3 contacted with the bottom-side surface of the support surface 571 the foot midsole 51 and fill the recess 570 on. To the bale pushes the oblique face 33 the rear crampon pickup 3 on the heel slope 57 the foot midsole 51 at. The midsole 51 and the rear crampon pickup 33 are formed so that the two are flush in the area of the heel slope to the foot side.
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The front crampon pickup 4 points at the base body 42 the heel facing oblique face 43 on, which for contact on the bale inclined surface 56 the foot midsole 51 is trained. The front crampon pickup 4 and the foot midsole 51 close to the foot side also in the area of the bale slope 56 flush off. The stiffening layers 6 then lies with the edge area 64 above the flush conclusion on the foot midsole 51 and the crampons shots 31 . 41 up and reaches into the middle confiscation 35 . 45 the crampons shots 3 . 4 one.
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The crampons shots 3 . 4 so can the recoveries 35 . 45 in which at least the end-side edge region 64 or the heel edge section 612 or the bale edge section 622 the stiffening situation 6 can be inserted. As a result, there is a particularly stable contact between crampons and stiffening position 6 ,
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4 and 8th show the bottom-side midsole 52 which is a heel section 521 and a bale section 522 having. Between the heel section 521 and the bale section 522 is a middle section 524 provided, which one step 523 that with the stage 513 corresponds.
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The 4 and 8th also show two different embodiments, at least insofar as only the embodiment according to 8th the stage 523 having.
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As in particular at the 4 is further recognizable, is in the ball area 522 the tip through a recess 525 except. The bottom-side midsole 52 is now designed to be right on the bottom side of the foot midsole 51 is on and on the nose 55 comes to a stop by placing it in the recess 54 the foot midsole 51 intervenes.
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5 shows how the midsole construction 5 from the foot midsole 51 and the bottom-side midsole 52 In addition, the front and the rear crampon shots are 3 . 4 used and the stiffening position 6 is in the depression 53 fitted.
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By providing the recess 53 can be heavy material of midsole construction 5 be saved. The preferably comparatively light stiffening position 6 gets into the recess 53 inserted. This weight and space can be saved.
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In one embodiment, the recess 53 exact fit, ie opposite to the bottom side B of the stiffening position 6 educated. In an alternative embodiment, at least in sections, for example in the heel and / or ball area, a gap between the stiffening position 6 and the midsole construction 5 , This space can change over the length in height and width and be filled by light and / or functional material, for example. A foam. Functional means here that the material in the intermediate space, for example, allows additional stability and / or additional damping.
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In addition, the stiffening position 6 be covered with a cover layer. For example, this cover layer can provide upholstery, slip resistance, elasticity or improved perspiration absorption or hygiene.
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9 shows an outsole 1 , The outsole 1 includes a heel section 11 and a bale section 12 , where on the bottom side a profile 13 is arranged. Opposite the profile is the foot side of the outsole 1 to find. The outsole 1 may in particular be designed abrasion resistant and non-slip, for example, consist of rubber or include such.
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10 then shows the complete shoe sole construction 7 with the outsole 1 , The components of the shoe construction can be glued and / or sewn directly together.
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11 shows a shoe construction 9 with the shoe sole construction 7 to 10 , The shoe construction 9 further includes a shaft construction 8th with a shaft bottom 82 , This shaft bottom 82 is designed flexibly and directly on the stiffening layer 6 , if necessary on a location 6 existing top layer, we described above glued and is at best with the shoe sole construction 7 sutured. The shaft construction 8th can do this right on the arms 511 . 512 or the edge area 64 or the entire stiffening situation 6 and the crampons shots 3 . 4 be attached.
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LIST OF REFERENCE NUMBERS
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- 1
- outsole
- 11
- Heel section of 1
- 12
- Bale section of 1
- 13
- bottom-side profile of 1
- 3
- rear crampon pickup
- 31
- Horn element of 3
- 32
- Basic body of 3
- 33
- oblique face of 3
- 34
- Nose of 3
- 35
- Confiscation of 3
- 4
- front crampon pickup
- 41
- Horn element of 4
- 42
- Basic body of 4
- 43
- oblique face of 4
- 44
- Nose of 4
- 45
- Confiscation of 4
- 5
- Midsole construction
- 51
- foot midsole
- 511
- first arm section of 52
- 512
- second arm section of 52
- 513
- Level in 521 respectively. 522
- 515
- Heel ground of 52
- 516
- Heel area of 51
- 518
- heels paragraph
- 52
- bottom-side midsole
- 521
- Heel section of 52
- 522
- Bale section of 52
- 523
- Level in 52
- 524
- Middle section of 52
- 525
- recess
- 53
- gap
- 531
- Heel clearance of 53
- 532
- Bale gap of 53
- 54
- room
- 55
- Nose of 511 respectively. 512
- 56
- Bale inclined surface of 5
- 57
- Heel bevel of 5
- 570
- Recess of 5
- 571
- bearing surface
- 6
- stiffening layer
- 61
- Heel area of 6
- 611
- Heel pad of 6
- 612
- Heel edge section of 6
- 62
- Bale area of 6
- 621
- Bale pad of 6
- 622
- Ballenrandabschnitt of 6
- 63
- Middle section of 6
- 630
- step
- 64
- Border area of 6
- 7
- Shoe sole design
- 8th
- shaft construction
- 81
- shaft bottom
- 9
- shoe construction
- H
- Standing height of 7
- L
- length of 7
