阅读说明：本技术 一种具有可拆卸连接件的镂空鞋 (Hollowed-out shoe with detachable connecting piece ) 是由 朱光 林依禾 卢伊丝 车弘毅 姚志锋 李杨 邹昊 陈婷婷 冯涛 于 2019-09-29 设计创作，主要内容包括：一种具有可拆卸连接件的镂空鞋,包括鞋身以及连接件,所述鞋身全部或是部分为镂空结构,该镂空结构由多个互相连通的结构单元组成,该结构单元为由顶点和多个连接柱组成的多面体结构,所述连接件包括连接部和功能部,该连接部与所述结构单元具有互相配合使用的固定机制从而固定连接连接件与结构单元,连接件的连接部与结构单元连接后,该连接件的功能部位于鞋身的外表面,实现镂空鞋在外观视觉上以及功能上的个性化定制,另外连接件也可以是使用者自己设计定制,所定制的连接件可通过3D打印设备打印出来,这样真正意义上实现镂空鞋从内到外的全定制化,而且将鞋子整体分为鞋身以及连接件,分开制造,提高生产效率,也降低了工艺的难度。(A kind of fretwork shoes with detachable connecting piece, including shoes body and connecting piece, the whole or part of the said shoes body is the fretwork structure, the fretwork structure is made up of multiple interconnected structural units, the structural unit is the polyhedral structure composed of summit and multiple joint columns, the said connecting piece includes connecting portion and function portion, the connecting portion and the said structural unit have fixing mechanism used in coordination with each other so as to fixedly connect connecting piece and structural unit, after the connecting portion of the connecting piece is connected with structural unit, the function portion of the connecting piece locates at the external surface of the shoes body, realize the personalized customization on the appearance vision and function of the fretwork shoes, the connecting piece can also be the user's own design customization, the connecting piece customized can be printed out through 3D printing equipment, in this way realize the full customization of the fretwork shoes from inside to outside in the true sense, and the whole shoes are divided into the shoe bodies and the connecting pieces, so that the production efficiency is improved, and the difficulty of the process is reduced.)

1. The utility model provides a fretwork shoes with can dismantle connecting piece, its characterized in that, includes shoes body and connecting piece, shoes body is whole or part is hollow out construction, and this hollow out construction comprises a plurality of constitutional units that communicate mutually, and this constitutional unit is the polyhedral structure of compriseing summit and a plurality of spliced pole, the connecting piece includes connecting portion and functional part, this connecting portion with constitutional unit-thereby fixed connecting piece and constitutional unit are connected to the fixed mechanism that has the use of mutually supporting, and the connecting portion of connecting piece is connected the back with constitutional unit, and the functional part of this connecting piece lies in the surface of shoes body.

2. The hollowed-out shoe with the detachable connecting piece according to claim 1, wherein all or part of the shoe body is made of an elastic material.

3. The hollowed-out shoe with the detachable connecting piece according to claim 1, wherein all or part of the connecting piece is made of an elastic material.

4. The footwear with the detachable connecting member according to claim 2 or 3, wherein the elastic material has an elastic modulus of 1 to 50MPa, an elongation at break of 50 to 600%, and a tensile strength of 5 to 50 MPa.

5. The hollowed-out shoe with the detachable connecting piece is characterized in that a receiving surface consisting of a vertex and a plurality of connecting columns in the structural unit, which are located on the same plane, can deform under the action of an external force, when the structural unit does not deform, the area of any receiving surface of the structural unit is smaller than the maximum cross-sectional area of the connecting portion, one end of the connecting portion can enter any receiving surface of the structural unit through the deformation of the structural unit, and the structural unit then recovers the shape before deformation to complete the fixed connection of the connecting portion and the structural unit.

6. The hollow shoe with the detachable connecting piece is characterized in that one end of the connecting portion is provided with one or more hook-shaped structures, the other end of the connecting portion is connected with the functional portion, and the hook-shaped structures can be connected with any one or more connecting columns of the same structural unit or multiple structural units so as to realize the fixed connection of the connecting portion and the structural units.

7. The footwear with detachable connecting member of claim 1, wherein the connecting portion penetrates through the plurality of structural units and is fixedly connected thereto.

8. The shoes of any one of claims 1 or 5-7 with removable connecting elements, wherein the connecting elements comprise a connecting part and a functional part, one end of the connecting part is connected with the functional part, and the other end of the connecting part is detachably connected with the structural unit.

9. The hollow shoe with the detachable connecting piece is characterized in that the connecting piece comprises a plurality of connecting parts and a functional part, one ends of the connecting parts are connected with the functional part, and the other ends of the connecting parts are detachably connected with different structural units respectively.

10. The hollowed-out shoe with the detachable connecting piece according to claim 1, wherein the shoe body is manufactured by 3D printing.

11. The footwear with the detachable connecting member according to claim 1 or 10, wherein the size and shape of the structural unit are changed according to the position of the footwear body.

12. The fretted shoe with detachable connecting piece of claim 1, wherein the connecting piece is a 3D printed integrated structure.

13. The hollow shoe with the detachable connecting piece is characterized in that the shoe body comprises an upper, a middle sole, an insole and an outsole, all or part of the upper, the middle sole, the insole and the outsole are composed of a plurality of mutually communicated structural units, and the connecting piece is detachably connected with the unit structures on the upper, the middle sole, the insole and the outsole.

14. The footwear with removable attachment elements of claim 13, wherein the functional portion covers an outer surface of the midsole when the attachment elements are attached to the unitary structure of the midsole.

15. The hollow shoe with the detachable connecting piece as claimed in claim 1, wherein the shape of the edge of the functional part of some or all of the connecting pieces is matched with each other, and when the connecting pieces are connected with the shoe body, the functional parts are combined with each other to realize their own functions.

Technical Field

The invention relates to a pair of shoes, in particular to a pair of hollow shoes with detachable connecting pieces.

Background

The shoes that 3D printed in the existing market are comfortable to wear, and the molding is changeable receives user's favor, and 3D printing technique has broken the mould to the restriction of the shape and the performance of sole moreover, and the producer need not to make high mould, can realize the customization to shoes through 3D technique, and is not only with low costs, satisfies multiple customer demand moreover. Therefore, the 3D printing shoe has a great market prospect.

One of the features that 3D printed shoes distinguish from ordinary shoes is that the midsole of 3D printed shoes generally has a repeating structural unit composed of an elastic material. The lightweight structural design can greatly improve the buffering performance and energy feedback of the sports shoe sole, and compared with the insole material and the structure in the traditional manufacturing industry, the lightweight structural design can provide better support and wearing comfort for a wearer and improve the sports performance. Except the shoes insole, the vamp of shoes is printed to 3D, positions such as outsole also can adopt hollow out construction to adopt the constitutional unit the same with the insole or different, the constitutional unit design of customization can provide different functions such as function and decoration simultaneously.

In view of the different functional requirements and the pursuit of individualization of users, people tend to have a pair of unique shoes. Decoration of the 3D printed shoe can be achieved by fixing the accessories into the hollowed-out structure of the 3D printed shoe, and some functional accessories can also be mounted on the 3D printed shoe in the manner described above. The mode is also favorable for the production and the manufacture of the 3D printing shoes, the shoes are separated from the customized parts and divided into two modules, and the customized production of the 3D printing shoes is convenient to realize.

Disclosure of Invention

The invention aims to solve the technical problems that most of the hollowed-out shoes in the prior art are planar hollowed-out structures, the connection mode and the self structure of a connecting piece and a shoe body are single, the fixing mode is inconvenient to operate, and the requirements of a user are difficult to meet, the hollowed-out structures for 3D printing can be three-dimensional, so that the connection mode of the connecting piece and the hollowed-out structures is more diversified, the connecting piece modularization and the shoe body are detachably connected, the 3D printing shoes and the accessory manufacturing are facilitated, and the requirements of the user for customizing the shoes are met.

In order to solve the technical problems, the invention provides a pair of hollow shoes with detachable connecting pieces, each hollow shoe comprises a shoe body and the connecting pieces, all or part of the shoe body is of a hollow structure, each hollow structure is composed of a plurality of mutually communicated structural units, each structural unit is of a polyhedral structure composed of a vertex and a plurality of connecting columns, each connecting piece comprises a connecting portion and a functional portion, the connecting portions and the structural units are provided with fixing mechanisms which are mutually matched for use, so that the connecting pieces and the structural units are fixedly connected, and after the connecting portions of the connecting pieces are connected with the structural units, the functional portions of the connecting pieces are located on the outer surface of the shoe body.

After adopting the structure, compared with the prior art, the invention has the following advantages: because hollow out construction is three-dimensional polyhedral structure, so the connecting piece can be connected with fretwork shoes with multiple forms, and detachable connecting piece can realize multiple different functions, realizes the individualized customization of fretwork shoes in outward appearance vision and function, and the user can match the connecting piece that has the functionality and/or the connecting piece that has the decoration effect according to the demand of oneself, has both satisfied the user to the demand of extra function, also satisfies the user to individualized demand. In addition, the connecting piece can also be designed and customized by a user, and the customized connecting piece can be printed out through 3D printing equipment, so that the hollow shoes are completely customized from inside to outside in the real sense. And the whole shoes are divided into the shoe bodies and the connecting pieces, so that the production efficiency is improved, and the difficulty of the process is reduced.

Further, all or part of the shoe body is made of elastic materials.

Further, all or part of the connecting piece is made of elastic materials.

Furthermore, the elastic modulus of the elastic material is 1-50MPa, the elongation at break of the elastic material is 50-600%, and the tensile strength of the elastic material is 5-50 MPa.

Furthermore, the connecting piece comprises a connecting part and a function part, one end of the connecting part is connected with the function part, and the other free end of the connecting part is detachably connected with the structural unit.

Furthermore, the structural unit can deform under the action of external force, when the structural unit does not deform, the area of any receiving surface of the structural unit is smaller than the maximum cross-sectional area of the connecting part, the free end of the connecting part can enter any receiving surface of the structural unit through the deformation of the structural unit, and the structural unit then recovers the shape before deformation to complete the fixed connection of the connecting part and the structural unit.

Further, the free end of connecting portion can have one or more and collude the column structure, and the other end and the functional unit of this connecting portion are connected, thereby collude the column structure and can be connected with one and the same constitutional unit or one or more arbitrary spliced poles of a plurality of constitutional units and realize connecting portion and constitutional unit's fixed connection.

Further, the connecting part may penetrate through the plurality of structural units and be fixedly connected with one or more of the structural units.

Further, the shoe body is manufactured by 3D printing.

Further, the size and shape of the structural unit can be changed according to the position of the shoe body.

Further, the connecting piece is an integrated structure for 3D printing.

Furthermore, the shoe body comprises a vamp, a midsole, an insole and an outsole, all or part of the vamp, the midsole, the insole and the outsole are composed of a plurality of mutually communicated structural units, and the connecting piece can be detachably connected with the structural units on the vamp, the midsole, the insole and the outsole.

Further, after the connecting piece is connected with the structural unit of the insole, the functional part covers the outer surface of the insole.

Furthermore, the shapes of the edges of the functional parts of part or all of the connecting pieces are matched with each other, and when the connecting pieces are connected with the shoe body, the functional parts are combined with each other to realize the functions of the functional parts.

Drawings

FIG. 1 is a schematic view of the construction of the base section of the present invention;

FIG. 2 is a schematic view of the structure of the structural unit and the connecting member of the present invention;

FIG. 3 is a schematic view of an embodiment of the structural unit and the connecting member of the present invention in a use state;

FIG. 4 is a schematic structural view of another embodiment of a structural unit and a connector in accordance with the present invention;

FIG. 5 is a schematic structural view of a structural unit in the present invention;

FIG. 6 is a schematic view of another embodiment of the connection of the present invention applied to a midsole.

1. A shoe body; 1.1 structural element; 1.11 receiving surface; 1.2, shoe uppers; 1.3 an insole; 1.4 a middle sole; 1.5 shoe outsoles; 2. a connecting member; 2.1 connecting part; 2.2 functional parts; 2.3 free end.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments.

It will be understood that when an element is referred to as being "on," "attached to," "connected to," combined with, "contacting" another element, etc., it can be directly on, attached to, connected to, combined with, and/or contacting the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on," "directly attached to," directly connected to, "directly engaged with" or "directly contacting" another element, there are no intervening elements present. One skilled in the art will also appreciate that a structure or member that is referred to as being disposed "adjacent" another member may have portions that overlie or underlie the adjacent member.

Spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe an element or component's relationship to another element or component as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Similarly, the terms "upward," "downward," "vertical," "horizontal," and the like are used herein for illustrative purposes only, unless explicitly indicated otherwise.

As shown in fig. 1 and 2, a hollow shoe with a detachable connecting element 2 comprises a shoe body 1 and a connecting element 2, wherein the shoe body 1 comprises a vamp 1.2 and a sole, the sole is composed of an insole 1.3, a midsole 1.4 and an outsole 1.5 in sequence, the insole 1.3 is a part directly contacted with the sole of a user, the outsole 1.5 is a part directly contacted with the ground, and the midsole 1.4 is a part connecting the insole 1.3 and the outsole 1.5. In some embodiments, the upper surface of midsole 1.4 is insole 1.3 and the lower surface of midsole 1.4 is outsole 1.5. In other embodiments, the bootie has a single insole 1.3, midsole 1.4 and outsole 1.5, wherein the lower surface of insole 1.3 is attached to the upper surface of midsole 1.4 and the lower surface of midsole 1.4 is attached to the upper surface of outsole 1.5. In other embodiments, the hollowed-out shoe does not have a separate insole 1.3, and the upper surface of the midsole 1.4 is the insole 1.3. In other embodiments, the hollowed-out shoe does not have a separate outsole 1.5, and the lower surface of the midsole 1.4 is the outsole 1.5.

All or part of the shoe body 1 is of a hollow structure, as shown in fig. 2, the hollow structure is composed of a plurality of mutually communicated structural units 1.1, the structural units 1.1 are of a polyhedral structure composed of vertexes and a plurality of connecting columns, and the structural units 1.1 can be mutually connected by sharing the same vertexes or the same connecting columns. The connecting element 2 comprises a connecting part 2.1 and a functional part 2.2, the connecting part 2.1 and the structural unit 1.1 have a fixing mechanism which is used in cooperation with each other to connect and fix the connecting element 2 and the structural unit 1.1. In some embodiments, the connecting portion 2.1 has a free end 2.3 with a variable shape, as shown in fig. 2, the free end 2.3 may be a hook-shaped structure, and after the connecting portion 2.1 of the connecting member 2 is connected with the structural unit 1.1, the functional portion 2.2 of the connecting member 2 is located on the outer surface of the shoe body 1.

The structural units 1.1 of the body 1 in different parts can be varied as required, the variables comprising: the geometric shape of the structural unit 1.1 (the geometric shape can be a polyhedron such as a prism, a pyramid, a tetrahedron, a hexahedron, an octahedron, a hexadecahedron, an icosahedron and the like), the thickness of the connecting column, the shape of the cross-sectional area of the connecting column and the like. In some embodiments, the connecting portion 2.1 of the connecting member 2 may be adapted to the size of the structural unit 1.1, that is, the connecting portion 2.1 has various sizes, but each connecting portion 2.1 is at least matched with one structural unit 1.1, and the shapes of the two can be mutually jogged and buckled.

In some embodiments, as shown in fig. 2 and 3, the free end 2.3 of the connecting portion 2.1 has one or more hook-shaped structures, and the hook-shaped structures are hooked with the connecting columns of the structural unit 1.1, when in use, the connecting portion 2.1 can be directly connected with the connecting columns on the surface of the shoe body 1, or the connecting portion 2.1 can be inserted into the hollow-out structures of the structural unit 1.1, and the connecting portion 2.1 is connected with the connecting columns inside the shoe body 1.

In some embodiments, the hook-shaped structure on one connecting element 2 can be connected to any one or more connecting columns of the same structural unit 1.1 or a plurality of structural units 1.1, so as to realize the fixed connection between the connecting element 2 and the structural unit 1.1.

In some embodiments, all or part of the shoe body 1 is made of an elastic material, and all or part of the connecting part 2.1 of the connecting element 2 can also be made of an elastic material, and the elastic material preferably has the property that the elastic modulus is 1-50 MPa; elongation at break is 50-600%; the tensile strength of the shoe body is 5-50Mpa, which not only can ensure the wearing comfort of a user, but also can ensure the strength of the shoe body and the connecting piece 2.

As shown in fig. 5, in the embodiment that the structural unit 1.1 is made of elastic material, the structural unit 1.1 can deform under the action of external force, the shape of the receiving surface 1.11 changes and the surface area can be enlarged, when the structural unit 1.1 is not deformed, the area of any receiving surface 1.11 of the structural unit 1.1 is smaller than the maximum cross-sectional area of the connecting portion 2.1, which is the area of the cross-section of the connecting portion 2.1 in the direction perpendicular to the direction of the receiving surface 1.11, and due to the deformation of the structural unit 1.1, the area of a certain receiving surface 1.11 of the structural unit 1.1 is enlarged, so that the free end 2.3 of the connecting portion 2.1 can enter the receiving surface 1.11, the structural unit 1.1 then recovers the shape before deformation to complete the fixed connection between the connecting member 2 and the structural unit 1.1, in particular, the shape of the connection 2.1 may be cylindrical, conical, prismatic, rectangular parallelepiped, etc.

Taking fig. 4 as an example, one end of the connecting part 2.1 is connected with the functional part 2.2, the free end 2.3 at the other end is a sphere, and the maximum cross-sectional area of the connecting part 2.1 in the direction perpendicular to the direction in which the free end 2.3 is inserted into the structural unit 1.1 is the cross-sectional area of the sphere. The cross-sectional area is larger than any receiving surface 1.11 of the structural element 1.1 in the undeformed state. Under the effect of external force, certain accepting face 1.11 area grow of constitutional unit 1.1, connecting portion 2.1 can get into constitutional unit 1.1 one or more accepting face 1.11 in, connecting portion 2.1 enters into anticipated position after, constitutional unit 1.1 restores the state before the deformation, and constitutional unit 1.1's spliced pole can carry on spacingly to connecting portion 2.1, realizes connecting piece 2 and constitutional unit 1.1's fixed connection.

In some embodiments, the connecting portion 2.1 of the connecting member 2 may extend through a plurality of structural units 1.1 and be fixedly connected to the structural units 1.1. Specifically, the connecting parts 2.1 can be strip-shaped structures, can be bent, have certain strength and can maintain the shape of the connecting parts, one functional part 2.2 is connected with a plurality of connecting parts 2.1, and the connecting parts 2.1 penetrate through a plurality of structural units 1.1 and are limited by connecting columns; or the connecting part 2.1 penetrates into the structural unit 1.1 from the surface of one shoe body 1, penetrates through the multiple structural units 1.1 and then penetrates out of the structural unit 1.1 on the other surface of the shoe body 1, the connecting part 2.1 in the structural unit 1.1 is limited by the structural unit 1.1, the connecting part 2.1 penetrating out of the structural unit 1.1 can be further fixed with the connecting column, or the multiple connecting parts 2.1 are fixed by themselves, and the fixing mode similar to that of a shoelace realizes the fixed connection of the connecting part 2 and the structural unit 1.1.

In some embodiments, each connecting member 2 includes a connecting portion 2.1 and a functional portion 2.2, one end of the connecting portion 2.1 is connected to the functional portion 2.2, the other free end 2.3 of the connecting portion 2.1 is detachably connected to the structural unit 1.1, and each functional portion 2.2 is fixedly connected to the shoe body 1 through one connecting portion 2.1. This applies to the functional part 2.2 which is of smaller design.

In some embodiments, each connecting member 2 includes a plurality of connecting portions 2.1 and a functional portion 2.2, one end of each of the plurality of connecting portions 2.1 is connected to the functional portion 2.2, the other free ends 2.3 of the plurality of connecting portions 2.1 are detachably connected to different structural units 1.1, the functional portion 2.2 is fixedly connected to the shoe body 1 through the plurality of connecting portions 2.1, which is suitable for the functional portion 2.2 with a larger structure, such as the functional portion 2.2 with a larger surface area, or the functional portion 2.2 with a bar shape, which requires the plurality of connecting portions 2.1 for fixing.

In some embodiments, the shoe body 1 is manufactured by 3D printing, a model of the shoe body 1 is established in computer software and then sliced, and 3D printing is performed after the sliced data is imported into a 3D printing device. The size and shape of the structural unit 1.1 of the body 1 vary according to the position of the body 1 in which it is located.

In some embodiments, the connecting member 2 is an integrated structure for 3D printing, and the connecting portion 2.1 and the functional portion 2.2 of the connecting member 2 are integrated structures, so that the connection between the two is firmer. And connecting piece 2 is printed by 3D and is formed, can realize the personal customization, satisfies the user to 1 individualized demand of shoes body.

In some embodiments, the base section 1 and the connecting member 2 are made of the same material by 3D printing.

In some embodiments, the upper 1.2, the midsole 1.4, the insole 1.3, and the outsole 1.5 in the body 1 are all or partially composed of a plurality of interconnected structural units 1.1, and the connecting element 2 is detachably connected with the structural units 1.1 on the upper 1.2, the midsole 1.4, the insole 1.3, and the outsole 1.5, i.e. the user can arbitrarily fix the connecting element 2 to the upper 1.2, the midsole 1.4, the insole 1.3, and the outsole 1.5 according to the needs of the user and the specific function of the functional part 2.2 of the connecting element 2, such as the connecting element 2 fixed on the upper 1.2, the functional part 2.2 can play a decorative role, and the functional part 2.2 can be a specific pattern; or the connecting element 2 fixed on the insole 1.3, the functional part 2.2 plays a role of massaging the sole of the foot, the functional element can be a salient point structure, and a user can arbitrarily fix the connecting element 2 (salient points) on the insole 1.3; or the connecting piece 2 fixed outside the sole has the function of anti-skid or elasticity increasing (increasing the performance of the shoe), and the structure design of the functional piece has the corresponding function.

In some embodiments, in which the connecting element 2 is connected to the structural unit 1.1 of the midsole 1.4, the functional part 2.2 of the connecting element 2 may partially or completely cover the outer surface of the midsole 1.4, thereby fulfilling the need for a user to be able to customize the appearance of his or her midsole 1.4. As shown in fig. 6, the functional portion 2.2 surrounds the periphery of the midsole 1.4, so that the appearance of the midsole 1.4 is changed and a decorative effect is achieved. The outer surface of the midsole 1.4 in fig. 6 is a hollow structure composed of a plurality of structural units 1.1 before the connecting element 2 is not used, and the connecting element 2 of the embodiment shown in fig. 6 is a sheet-shaped connecting element 2 matched with the outer contour shape of the midsole 1.4 shown in the left figure. The connecting element 2 may surround the entire midsole 1.4 and completely cover the outer contour of the midsole 1.4. The right drawing in fig. 6 shows an example of the effect of the connecting element 2 after insertion into the midsole 1.4. Wherein the functional part 2.2 is wrapped on the outer contour of the insole 1.4 and displays a specific pattern effect. In this embodiment, the connecting element 2 comprises a functional part 2.2 and a plurality of connecting parts 2.1, which are fixedly connected to the structural unit of the midsole at different locations of the periphery of the midsole.

In some embodiments, the plurality of connecting members 2 can be used individually or cooperatively, when the plurality of connecting members 2 are used cooperatively, the shapes of the edges of the functional parts 2.2 of some or all of the connecting members 2 can be matched with each other, and when the connecting members 2 are connected with the shoe body 1, the functional parts 2.2 are combined with each other to realize their own functions, for example, the functional parts 2.2 of the plurality of connecting members 2 can be combined with each other to form a complete pattern; or the functional parts 2.2 of the plurality of connecting parts 2.1 can be arranged according to different rules to form a plurality of different patterns. Taking the embodiment of fig. 5 as an example, it is possible to have a plurality of connecting elements 2 which are shown as a splice and which decorate the entire midsole 1.4. Due to the performance of the elastic material for manufacturing the connecting piece 2 and various modes of fixed combination provided by the 3-dimensional hollow-out insole structure, the splicing pieces can well fit and cover the outline of the insole at different splicing positions of the insole.

The above description is only a preferred embodiment of the present invention, and it should not be understood that the scope of the present invention is limited thereby, and it should be understood by those skilled in the art that various other modifications and equivalent arrangements can be made by applying the technical solutions and concepts of the present invention within the scope of the present invention as defined in the appended claims.