JP2009514575A - Shoes, especially sports shoes - Google Patents

Abstract

  Shoes, in particular sports shoes, having a shoe upper (1) and a sole (2), at least one cushioning element (3) above or in the sole (2) Are arranged, the buffer element (3) is formed of a plurality of webs (4), and the plurality of webs (4) forms a plurality of hollow chambers (5), the hollow chambers (5) relates to a type in which the shoe extends in the horizontal direction and the lateral direction with respect to the longitudinal direction (L) of the shoe. In order to improve the spring / cushioning behavior and pronation / extraction behavior of the shoe, the present invention provides that the shoe has a rear foot cup or reel cup (12), and the rear foot cup or reel cup (12 ) Suggests that at least a portion of the web (4) is in direct contact.

Description

  The present invention is a shoe, in particular a sports shoe, having a shoe upper and a sole, wherein a cushioning element is arranged above or in the sole, wherein the cushioning element comprises a plurality of cushioning elements. The present invention relates to a type formed of webs, in which these webs form a plurality of hollow chambers, and these hollow chambers extend horizontally and laterally with respect to the longitudinal direction of the shoe.

  A sports shoe of this kind is known, for example, from DE 3440206C2. Here, the shoe sole is provided with a buffer element. This buffer element has a plurality of hollow chambers. These hollow chambers penetrate the sole in the transverse direction with respect to the longitudinal direction of the shoe when used as prescribed, that is, when the shoe is in contact with the ground. As a result, the shoe or its sole acquires the desired cushioning behavior.

  Other solutions are also known which are capable of acting on the spring-damping properties of the shoe. WO 01/17384 A2 describes a sole for shoes, in which a plurality of ribs having a curved shape are positioned between a support or an inner portion and an outsole in a rear foot region. Therefore, the rib bends when an impact force is applied to the sole. In this case, the rib is almost semi-elliptical. Furthermore, a shoe of the type described at the outset is known from DE 202005007867U1. Here, the cushioning element is formed by two plates spaced apart and parallel to each other, ie a top plate and a bottom plate. In this case, a web extends between the two plates, and these webs form the hollow chamber. Such a solution is shown in FIG. There, the rear part of the shoe can be seen in the side view. The buffer element 3 incorporated in the sole 2 has a top plate 15 and a bottom plate 16 which simultaneously functions as an outsole here. In this case, the web 4 extends between the two plates and forms a hollow chamber 5.

FIG. 2 shows the shoe shown in FIG. 1 when the heel collides with the ground. Pedal force _{F F} evokes ground force _{F B} as a repulsive force. In this case, the two forces are directed substantially in the direction of the vertical line. In this case, pedal force F _F is substantially transmitted through the heel of the support of the shoe and acts at a location of approximately shown, the ground force F _B is introduced into the sole at the rear of the shoe ends. As a result, the two forces inevitably lie apart from each other with a predetermined distance a when viewed in the direction of the horizontal line H.

Therefore, as can be seen immediately from FIG. 2, a shear force F _S is generated as shown in the figure when the shoe collides with the ground. The shear force F _S is moved relative to each other and the bottom plate and the top plate in the longitudinal direction of the shoe, therefore, the structure of the damping element 3 as is shown in FIG. 2 is deformed. So far, the rectangular hollow chamber 5 (see FIG. 1) as viewed from the side has been deformed and thus has a rhombus outline. This adversely affects the spring and cushioning characteristics of the shoe. In other words, in the case of the known configuration of the sole and its cushioning element, the impact on the cushioning / spring characteristics and the pronation / extraction behavior at the time of collision of the sole with the ground can only be limited or limited. . It is desirable to have an influencing parameter that allows this in an improved form.

  The problem underlying the present invention is therefore to improve shoes of the type mentioned at the outset, in particular sports shoes, in a modified manner, the spring-cushion behavior of the shoe and the pronation of the shoe when the heel hits the ground.・ Provide a format that can affect pronation behavior. In other words, we would like to propose a structural configuration of the above-mentioned type of shoe that can affect the deformation of the cushioning element when the shoe collides with the ground and the tilting of the shoe about the shoe longitudinal axis.

  According to the present invention for solving this problem, the shoe has a rear foot or a heel cup, and at least a part of the web is in direct contact with the rear foot or the heel cup.

  As will be seen in more detail later (see FIG. 3), therefore, the unfavorable deformation of the shock-absorbing element when the shoe collides with the ground is avoided sufficiently, so that the spring-damping characteristics of the shock-absorbing element are ensured. On the other hand, no adverse deformation of the element occurs.

  Advantageously, the cushioning element extends to the rear end of the shoe and extends upward around the heel. In other words, accordingly, the cushioning element is at least partially following the extension of the heel cup, which enhances the desired effect. That is, in order to achieve a predetermined spring and cushioning characteristic even in the rear or rear region of the shoe, the cushioning element may extend to 40-75% of the total shoe height in the heel region. In this case, the last web of the cushioning element is regarded as the end of the cushioning element.

  The cushioning element may comprise a plurality of webs connected to each other formed in a planar surface. In this case, there is an advantage that at least a part of the hollow chamber has a polygonal, particularly quadrangular, pentagonal, or hexagonal limiting wall as seen from the side of the shoe. As an alternative or in addition, it is also possible for the damping element to have a plurality of webs connected to each other formed in a curved surface body. The web (flat and curved) configuration includes all possible cases, including hollow chambers in which the limiting surface is formed in a honeycomb, tubular or elliptical shape.

  The outsole can be arranged on the underside of the cushioning element, preferably with a constant thickness. The outsole may extend over the entire area where the cushioning element extends. It can also be proposed that the outsole extends beyond the area of the buffer element.

  A particularly advantageous production form and a compact construction of the components are possible if the rear foot or heel cup and / or the cushioning element, the outsole are formed as an integral injection-molded member.

  If it is suggested that at least a part of the web is orthogonal to the rear foot or heel cup and / or outsole as viewed from the side of the shoe based on the improvement, the force transmission from foot to ground or ground to foot is even more optimal It becomes.

  The rear foot or heel cup is advantageously configured as a convex structure, i.e. the surface of the rear foot or heel cup is curved in two directions which are perpendicular to each other in the heel region and which lie in the surface plane. Is formed.

  If at least one notch is machined in at least a portion of the cushioning element, it is possible to effectively affect the pronation / extraction behavior of the shoe. The incision divides the cushioning element into at least two partial elements, which are preferably arranged symmetrically with respect to the central plane of the shoe.

  In this case, the incision preferably has a U-shaped or V-shaped shape when viewed in the longitudinal direction of the shoe. The side of the V-shaped cut preferably forms a predetermined angle with the vertical line of 10-60 °, preferably 15-45 °.

  The lateral restriction surface outside the partial element extends at least partially straight. In this case, the limiting surface forms a predetermined angle with the vertical line of 0 to 60 °, preferably 15 to 45 °. In this case, the angle of the side surface of the V-shaped cut with respect to the vertical line and the angle of the limiting surface with respect to the vertical line may be the same size. Alternatively, both angles may be different. In this case, the incision can extend to the rear foot or heel cup or can extend to the vicinity of the rear foot or heel cup.

  The incision can only be made in the rear foot area of the shoe as viewed in the longitudinal direction of the shoe. The incision can extend over a length of 5 to 45%, preferably 15 to 35% of the length of the shoe as viewed in the longitudinal direction of the shoe. The relatively low value of the extension of the incision applies in particular to the case where several incisions are continuous in the longitudinal direction of the shoe.

  The maximum width of the incision may be 10 to 50%, in particular 20 to 40%, of the width of the shoe in the area of the ground contact surface of the shoe to the ground. The relatively low value of the cut extension applies here in particular to the case where two or more cuts are arranged side by side in the longitudinal direction of the shoe.

  Outsoles that are placed (eg, secured) on the underside of the cushioning element when necessary, like the cushioning element, are interrupted across the width of the shoe in the presence of incisions.

  The sole part, in particular the buffer element, is preferably made of plastic, in particular thermoplastic material. In this case, ie preferably polyethylene, polypropylene, polybutane, polyamide, polyurethane or a mixture of at least two of these plastics are envisaged. The plastic may be translucent or transparent. The outsole may also consist of plastic, preferably polyethylene, polypropylene, polybutane, polyamide, polyurethane or a mixture of at least two of these plastics, or rubber.

  The material of the individual components of the buffer element and its geometric dimensions can be selected by those skilled in the art to define the spring and buffer characteristics of the buffer element.

  With the arrangement according to the invention, the shoe is improved against forces or moments which attempt to shear the shoe in the direction of the shoe longitudinal axis and / or to rotate about the shoe longitudinal axis upon impact with the ground. Win support. As a result, the spring and shock absorbing behavior of the shoe and the pronation / extraction behavior of the shoe at the time of contact with the ground can be effectively exerted. Since this can be achieved by relatively simple means, the operation can be performed at low cost.

  It is also possible to influence the spring and shock-absorbing properties of the sole or the shock-absorbing element by means of the proposed means. The spring stiffness, which is an absolute value, can be adjusted via the web thickness of the damping element and / or via the size of the individual hollow chambers.

  The production of the proposed shock-absorbing element and the entire shoe is possible in a simple manner and inexpensively, for which a known technique is used.

  The shoe according to the present invention, in particular a sports shoe, is a shoe, in particular a sports shoe, having a shoe upper and a sole, wherein at least one cushioning element is arranged above or in the sole. The cushioning element is formed of a plurality of webs, the plurality of webs form a plurality of hollow chambers, and the hollow chambers extend in a horizontal direction and a lateral direction with respect to a longitudinal direction of the shoe. The shoe has a rear foot or a heel cup, and at least a portion of a web is in direct contact with the rear foot or the heel cup.

  The shoe according to the invention advantageously has the cushioning element extending to the rear end of the shoe and extending upwards around the heel.

  The shoe according to the invention advantageously has a plurality of webs in which the cushioning elements are flat, planar and joined together.

  In the shoe according to the invention, advantageously, at least a part of said hollow chamber has a polygonal, in particular square, pentagonal, hexagonal limiting wall as viewed from the side of the shoe.

  The shoe according to the invention advantageously has a plurality of webs in which the cushioning elements are curved and formed in a plane and joined together.

  In the shoe according to the present invention, an outsole is advantageously arranged on the lower surface of the buffer element.

  The shoe according to the invention advantageously has at least a part of the web perpendicular to the rear foot or the heel cup and / or the outsole as viewed from the side.

  The shoe according to the present invention is advantageously formed such that the surface of the rear foot or the heel cup is always curved in two directions which are perpendicular to each other and located in the surface plane in the heel region.

  In the shoe according to the present invention, the rear foot or the heel cup and / or the cushioning element and the outsole are advantageously formed as an integral injection-molded member.

  The shoe according to the invention is advantageously provided with at least one incision in at least a part of the cushioning element, the notch dividing the cushioning element into at least two partial elements.

  The shoe according to the invention advantageously has the at least two partial elements arranged symmetrically with respect to the central plane of the shoe.

  In a shoe according to the invention, the incision advantageously has a U-shape when viewed in the longitudinal direction of the shoe.

  In a shoe according to the invention, the incision advantageously has a V-shape when viewed in the longitudinal direction of the shoe.

  In the shoe according to the invention, the side of the V-shaped cut is advantageously at a predetermined angle of 10 ° to 60 °, preferably 15 ° to 45 ° with the vertical line.

  The shoe according to the invention advantageously has a lateral restriction surface on the outside of the partial element extending at least partially straight, the restriction surface being between 0 ° and 60 ° with the vertical line, preferably Is at a predetermined angle of 15 ° to 45 °.

  In the shoe according to the present invention, advantageously, the angle of the side surface of the V-shaped cut with respect to the vertical line and the angle of the limiting surface with respect to the vertical line are set to the same size.

  In the shoe according to the present invention, advantageously, the angle of the side surface of the V-shaped cut with respect to the vertical line and the angle of the limiting surface with respect to the vertical line are not set to the same size.

  The shoe according to the invention advantageously has the incision extending to the rear foot or the heel cup or to the vicinity of the rear foot or the heel cup.

  In a shoe according to the invention, the incision is advantageously located only in the rear foot region of the shoe as viewed in the longitudinal direction of the shoe.

  The shoe according to the invention advantageously has the incision extending over a length of 5% to 45%, preferably 15% to 35% of the length of the shoe as viewed in the longitudinal direction of the shoe. .

  The shoe according to the invention advantageously has a maximum width of said incision of 10% to 50%, preferably 20% to 40%, in the area of the shoe's contact surface to the ground.

  Embodiments of the invention will now be described with reference to the drawings.

  An embodiment of the invention can be seen from FIG. In this case, the shoe partially shown therein has a shoe upper 1 and a sole 2. A shock absorbing element 3 is incorporated in the sole 2, and in this case, the shock absorbing element 3 is formed from a plurality of webs 4. These webs 4 form hollow chambers 5 that extend in the horizontal and lateral directions with respect to the longitudinal direction L of the shoe.

  The shoe has a rear foot or heel cup 12. At least a portion of the web 4 is immediately adjacent to the rear foot or heel cup 12. In FIG. 4, the upper web 4 extending in the vertical direction of the cushioning element 3 is in contact with the heel cup 12 perpendicular to the convex surface of the heel cup 12 and viewed across the width of the shoe, It is shown following the convex extension of the heel cup 12 (see also FIG. 6). In this case, the buffer element 3 is not configured to be flat when viewed in the longitudinal direction L, and the extension part of the buffer element 3 continues to the extension part of the heel cup 12, that is, in the rear heel region. Element 3 is curved upward.

  The outsole 14 mounted below the cushioning element 3 continues appropriately, i.e. a sufficiently spaced gap is provided between the heel cup 12 and the outsole 14 over a predetermined distance. . This gap continues to the extension part of the heel cup, and the buffer element 3 is arranged in this extension part.

This achieves that in the event of a collision with the ground at the heel of the shoe, it does not lead to an inconvenient deformation that would shear the cushioning element as in the case of FIGS. 1 and 2 showing the prior art. Rather, from FIG. 3, the buffer element 3 is indeed compressed and thus deformed, but no shear (as in FIG. 2) occurs or, if any, it is less important. This is a result of the use of the heel cup 12 are at substantially the same plane as the pedal force F _F and the ground force F _B, i.e. the distance a as shown in FIG. 2 does not occur in the direction of the horizontal H between the two force Therefore, inconvenient deformation (FIG. 2) of the buffer element 3 is prevented.

  In order to improve the pronation / extroversion behavior of a shoe, the following other means can be taken.

  From FIG. 5, the rear part of the alternatively formed shoe can be seen. Here, a buffer element 3 is incorporated in the sole 2, and the buffer element 3 is composed of a plurality of webs 4. These webs 4 are formed as plate portions or curved walls. The plate portion or curved wall extends across the entire width of the shoe except for the notches (described in more detail below). In this case, the cushioning element 3 consisting of the individual webs 4 is again directly connected to the rear foot or heel cup 12 again above. The outsole 14 is disposed below the buffer element 3. Again, it can be seen that the buffer element 3 extends over the rear foot region 13.

  As can be seen on the basis of FIGS. 6 and 7, the buffer element 3 is not provided uninterrupted over the entire width of the shoe, but is provided with a V-shaped cut 6. The notch 6 is defined by two side surfaces 8 and 9 (see FIG. 6). These side surfaces 8 and 9 are formed straight and form an angle α with respect to the vertical line V. This angle is approximately 30 ° in this example, but in this case a value between 15 and 45 ° is advantageously suitable. Further, the outer limiting surfaces 10 and 11 on the side of the buffer element 3 are not inclined in the vertical direction, and similarly extend at a predetermined angle with respect to the vertical line V. This is also in the region below the buffer element 3. The angle β is given to this angle. Although not absolute, the angles α and β are advantageously sized to the same magnitude.

  It is also possible for one or more incisions 6 to be machined in the sole or buffer element 3. In this case, for example, two or more incisions 6 that are continuous in the longitudinal direction L of the shoe can be provided. Furthermore, it is possible to provide two or more incisions 6 arranged side by side when viewed in the longitudinal direction L. These incisions 6 divide the cushioning element 3 into a plurality of partial elements across the width of the shoe.

  Therefore, a configuration is provided in which the buffer element 3 is divided into two partial elements 3 ′, 3 ″. In any case, the two partial elements 3 ′ and 3 ″ extend laterally in the lower region of the buffer element 3, and extend downward so as to be separated from each other. In this arrangement, the two partial elements 3 ′, 3 ″ are preferably, but not absolutely, formed symmetrically with respect to the central plane 7 of the shoe. Since the partial elements 3 ′ and 3 ″ are asymmetric, it is possible to eliminate the influence on the pronation / extraction behavior of the shoe.

It can be seen from FIG. 7 how much the size of the cut 6 can be selected. The length _{L E} of the incision 6, in this embodiment is about 25-30 percent of the total length _{L S} of the shoe, in this case, preferably from 15 to 35%. The incision 6 (see FIG. 6) reaches close to the rear foot or heel cup 12, where a “V” tip is formed, while the incision 6 in the region of the outsole 14 has its maximum width _BE . ing. The width _{B E} is advantageously from 20 to 40% of the width _{B S} of the shoe. FIGS. 8 a to 8 d show different configurations of the damping element 3, which are related to the configuration of the web 4.

  In FIG. 8a, a honeycomb shaped body is realized. In other words, the individual webs 4 here form hexagonal or square elements. These elements form the structure of the buffer element 3. According to FIG. 8b, the web 4 is arranged such that a pentagon (pentagon) is provided. A simple square configuration of the individual hollow chambers 5 by the web 4 can be seen from FIG. 8c (solution of FIG. 1). In the solution according to FIG. 8d, a simply flat or plate-like web 4 is provided. These webs 4 connect the outsole 14 to the rear foot or heel cup 12. That is, in this case, the webs are arranged in parallel to each other at a predetermined angle with respect to the vertical line.

  As can be seen from FIG. 5, the buffer element 3 is again not formed flat and continues to the extension of the rear foot or heel cup 12. In this case, the cushioning element 3 extends to a predetermined height (the uppermost web 4 extending in a substantially horizontal direction forms the end of the cushioning element 3), and this predetermined height is This corresponds to approximately half the total height of the shoe in the area.

  While this embodiment shows only the structure of the cushioning element 3 in the rear foot region 13, the equivalent can also be applied to the front foot region.

  The shock-absorbing element 3 is advantageously formed from an integral injection-molded part (preferably EVA) together with the rear foot or heel cup 12. In this case, the outsole 14 can be bonded to this member.

1 is a side view of a rear part of a sports shoe with a buffer element according to the prior art. FIG. It is the figure which showed the shoes of FIG. 1 when a heel collides with the ground. It is the figure which showed the structure of the shoes by this invention when a heel collides with the ground. It is a perspective view of the rear part of the shoes which are the examples of the present invention. It is the longitudinal cross-sectional view which looked at the rear part of the sports shoes by this invention from the side surface. It is the figure which showed the cross section AB of the shoes of FIG. It is the figure which looked at the rear part of the shoes of FIG. 5 or FIG. It is the figure which showed the different structure of the buffer element, Comprising: It is a side view of the part of a buffer element. It is the figure which showed the different structure of the buffer element, Comprising: It is a side view of the part of a buffer element. It is the figure which showed the different structure of the buffer element, Comprising: It is a side view of the part of a buffer element. It is the figure which showed the different structure of the buffer element, Comprising: It is a side view of the part of a buffer element.

Explanation of symbols

1 shoe upper, 2 sole, 3 cushioning element, 3 ′ partial element, 3 ″ partial element, 4 web, 5 hollow chamber, 6 notch, 7 central plane, 8 side surface, 9 side surface, 10 outer side limiting surface , 11 Outer lateral restriction surface, 12 Rear foot or heel cup, 13 Rear foot region, 14 Outsole, 15 Top plate, 16 Bottom plate, L Longitudinal direction of shoe, V vertical line, H vertical line, α angle, β angle, a distance, _{L E} cut length of, _{L S} shoe length, the maximum width of _{B E} cuts, _{B S} shoe width, _{F F} depression force, _{F B} ground force, _{F S} shear

Claims (21)

Shoes, in particular sports shoes, having a shoe upper (1) and a sole (2), at least one cushioning element (3) above or in the sole (2) Are arranged, the buffer element (3) is formed of a plurality of webs (4), and the plurality of webs (4) forms a plurality of hollow chambers (5), the hollow chambers In the type in which (5) extends in the horizontal direction and the lateral direction with respect to the longitudinal direction (L) of the shoe,
A shoe, in particular a sport, characterized in that it has a rear foot or a heel cup (12) and at least a part of the web (4) is in direct contact with the rear foot or the heel cup (12). shoes.   The shoe according to claim 1, wherein the cushioning element (3) extends to the rear end of the shoe and extends upward around the heel.   The shoe according to claim 1 or 2, wherein the cushioning element (3) comprises a plurality of webs (4) formed flat and planar and joined together.   4. The shoe according to claim 3, wherein at least a part of the hollow chamber (5) has a polygonal, in particular quadrangular, pentagonal or hexagonal limiting wall as viewed from the side of the shoe.   The shoe according to any one of claims 1 to 4, wherein the cushioning element (3) has a plurality of webs (4) that are curved and formed in a plane and joined together.   The shoe according to any one of the preceding claims, wherein an outsole (14) is arranged on the underside of the cushioning element (3).   The at least one portion of the web (4) is orthogonal to the rear foot or the heel cup (12) and / or the outsole (14) when viewed from the side. Shoes.   The surface of the rear foot or the heel cup (12) is always formed to be curved in two directions which are perpendicular to each other and located in the surface plane in the heel region. shoes.   9. The rear foot or the heel cup (12) and / or the cushioning element (3), the outsole (14) are formed as an integral injection molded member. shoes.   At least one cut (6) is machined in at least a part of the buffer element (3), the cut (6) connecting the buffer element (3) with at least two partial elements (3 ', 3' '). 10. The shoe according to any one of claims 1 to 9, wherein the shoe is divided into the following.   Shoe according to claim 10, wherein the at least two partial elements (3 ', 3 ") are arranged symmetrically with respect to the central plane (7) of the shoe.   The shoe according to claim 10 or 11, wherein the incision (6) has a U-shape when viewed in the longitudinal direction (L) of the shoe.   The shoe according to claim 10 or 11, wherein the incision (6) has a V-shape when viewed in the longitudinal direction (L) of the shoe.   The side surfaces (8, 9) of the V-shaped cut (6) form a predetermined angle (α) with the vertical line (V) of 10 ° to 60 °, preferably 15 ° to 45 °. Item 13. A shoe according to Item 13.   The lateral restriction surfaces (10, 11) outside the partial elements (3 ′, 3 ″) extend at least partially straight, and the restriction surfaces (10, 11) are perpendicular ( 15. A shoe according to any one of claims 10 to 14, which forms a predetermined angle (β) with V) from 0 ° to 60 °, preferably from 15 ° to 45 °.   The angle (α) of the side surface (8, 9) of the V-shaped cut (6) with respect to the vertical line (V) and the angle of the limiting surface (10, 11) with respect to the vertical line (V) ( The shoe according to claim 15, wherein β) is set to the same size.   The angle (α) of the side surface (8, 9) of the V-shaped cut (6) with respect to the vertical line (V) and the angle of the limiting surface (10, 11) with respect to the vertical line (V) ( The shoe according to claim 15, wherein β) is not set to the same size.   18. The cut (6) extends to the rear foot or the heel cup (12) or extends to the vicinity of the rear foot or the heel cup (12). The listed shoes.   19. A shoe according to any one of claims 10 to 18, wherein the incision (6) is located only in the rear foot region (13) of the shoe as viewed in the longitudinal direction (L) of the shoe. The incision (6) extends over a length (L _E ) of 5% to 45%, preferably 15% to 35% of the length (L _S ) of the shoe as viewed in the longitudinal direction (L) of the shoe. 20. A shoe according to any one of claims 10 to 19, which extends. 21. The maximum width (B _E ) of the incision (6) is 10% to 50%, preferably 20% to 40%, in the area of the contact surface of the shoe to the ground. A shoe according to any one of the above.

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