Patent Application
20250135319
This application claims priority to European patent application EP 23 206 136.6, filed Oct. 26, 2023, the entire content of which is incorporated herein by reference.
The present disclosure relates to a shoe fastening system and an intermediate adapter for a shoe fastening system.
Today's roller skate systems include shoe parts with differently designed undersides and differently designed rails with wheels. It is therefore not always possible to fasten a specific shoe part to a specific rail.
It is therefore an object of the present disclosure to increase the compatibility of a shoe fastening system.
This object is achieved by the shoe fastening system and the intermediate adapter for compensating a distance between a rail and a shoe part, as described herein.
According to a first aspect, the technical task is solved by a shoe fastening system comprising a shoe part; a rail with wheels; and an insertable intermediate adapter for compensating a distance between the rail and the shoe part. The intermediate adapter is insertable in the ball area between the rail and the shoe part. The intermediate adapter can also be removed by the user.
The intermediate adapter makes it easy to compensate for differences in height between the rail and the shoe part. This allows additional rails to be used for the shoe part. This increases the compatibility and combination possibilities of the shoe parts and the rails of the shoe fastening system.
In a technically advantageous embodiment of the shoe fastening system, the shoe part has a flat underside. This achieves the technical advantage, for example, that the shoe part can be adapted to many rails.
In a further technically advantageous embodiment of the shoe fastening system, the rail has a surface in the heel area which is raised relative to a ball area. This achieves the technical advantage, for example, that a good driving behavior of the shoe fastening system is achieved.
In a further technically advantageous embodiment of the shoe fastening system, the shoe part includes at least one displaceable mounting plate for screwing in a fastening screw for the intermediate adapter. This achieves the technical advantage, for example, of simplifying fastening of the intermediate adapter.
According to a second aspect, the technical task is solved by an intermediate adapter for compensating a distance between a rail and a shoe part, comprising three through-openings for inserting a fastening screw. The intermediate adapter achieves the same technical advantages as the sports shoe according to the first aspect.
In a technically advantageous embodiment of the intermediate adapter, the first through-opening is arranged in the center of the intermediate adapter, the second through-opening is arranged on one side of the intermediate adapter and the third through-opening is arranged on the other side of the intermediate adapter. For example, one side of the intermediate adapter is the side to the right of the rail and the other side is the side to the left of the rail. This achieves the technical advantage, for example, of enabling good power transmission.
In a further technically advantageous embodiment of the intermediate adapter, at least one of the through-openings has a slot shape for displacing the fastening screw. The slot shape can be aligned in such a way that a mounting position of the shoe part on the rail can be displaced forwards and backwards. This achieves the technical advantage, for example, that the intermediate adapter can be adapted to different shoe parts.
In a further technically advantageous embodiment of the intermediate adapter, the second through-opening on one side of the intermediate adapter is offset rearwardly relative to the third through-opening on the other side of the intermediate adapter. This also achieves the technical advantage, for example, that the intermediate adapter can be used for a shoe fastening system with good power transmission.
In a further technically advantageous embodiment of the intermediate adapter, the intermediate adapter includes a central portion which is recessed relative to the side portions for inserting a rail. This achieves the technical advantage, for example, that the shoe fastening system has a high integral stability.
In a further technically advantageous embodiment of the intermediate adapter, the intermediate adapter includes a central portion which is raised relative to the side portions. This achieves the technical advantage, for example, that the adaptability of the intermediate adapter is further improved and that it can also be used with wide rails.
In a further technically advantageous embodiment of the intermediate adapter, at least one through-channel of one of the through-openings protrudes from the intermediate adapter in the direction of a shoe part. This achieves the technical advantage, for example, that the intermediate adapter can be easily inserted at the intended position on the shoe part and is also supported relative to the shoe part.
In a further technically advantageous embodiment of the intermediate adapter, the intermediate adapter includes beveled lateral surfaces. This achieves the technical advantage, for example, of improving a flow resistance of the shoe fastening system.
In a further technically advantageous embodiment of the intermediate adapter, the intermediate adapter is formed of plastic. This achieves the technical advantage, for example, that the intermediate adapter can be manufactured with low energy consumption.
In a further technically advantageous embodiment of the intermediate adapter, the intermediate adapter is formed with an inner cavity. This achieves the technical advantage, for example, of reducing the amount of material required to manufacture the intermediate adapter.
In a further technically advantageous embodiment of the intermediate adapter, the inner cavity includes a support structure. This achieves the technical advantage, for example, of increasing the stability of the intermediate adapter.
The disclosure will now be described with reference to the drawings wherein:
The flat underside (soul plate) of the shoe part 101 is mounted on the rail 103 without an intermediate adapter (UFS-Universal Fixation System).
In the shoe fastening system 100 shown, the rail 103 has a surface in the heel area which is raised relative to a ball area of the rail 103. The rail 103 has a corresponding step in the longitudinal direction.
The shoe fastening system 100 can include two different intermediate adapters 107, which are suitable for the most common shoe fastening systems. A UFS two-point fastening (flat and already integrated in the shoe part), a 165 mm two-point fastening (11 mm distance at the heel) and a Trinity three-point fastening can be achieved with the shoe fastening system 100.
The underside 109 of the shoe part 101 includes displaceable mounting plates 129 for screwing in a fastening screw for the intermediate adapter 107. For this purpose, the mounting plates 129 include an opening with an internal thread into which the fastening screw with the external thread can be screwed.
Within the shoe part 101, the mounting plates 129 are displaceably mounted in corresponding receiving means 133. The receiving means 133 are formed by corresponding recesses in which the mounting plates 129 can slide back and forth. The mounting plates 129 are formed, for example, from square or rectangular metal plates. The receiving means 133 for the mounting plates 129 can be molded into the shoe part 101 from the outside or the inside of the shoe part 101 in an injection molding process during manufacture. These are thus integrated into the underside 109 of the shoe part 101. The receiving means 133 for the mounting plates 129 are formed, for example, by aluminum housings in which the mounting plates 129 are displaceable. This achieves a high level of strength.
The mounting plate 129-1 in the heel area is displaceable both longitudinally and transversely. For this purpose, the mounting plate 129-1 is received in a guide element 131, which includes a transverse slot. The guide element 131 is displaceable together with the mounting plate 129-1 in the longitudinal direction. In the transverse direction, the mounting plate 129-1 is in turn displaceable within the guide element 131. For this purpose, the shoe part 101 includes a T-shaped slot to enable the mounting plate 129-1 to be displaced in the longitudinal and transverse directions.
The front center mounting plate 129-2 in the ball area is displaceable in the longitudinal direction of the shoe part 101. The lateral mounting plates 129-3 and 129-4 in the ball area, on the other hand, are displaceable in the transverse direction of the shoe part 101. In this way, different intermediate adapters 107 can be used and tolerances in the fastening can be easily compensated. Rails with a UFS fastening system can be displaced forwards and backwards.
The one-piece fastening block 135 is integrated into the shoe part 101 during manufacture and can be made of aluminum or other materials. The fastening block 135 determines the position of the receiving means 133 on the underside of the shoe part relative to one another. The fastening block 135 is, for example, cast into the shoe part 101 from the inside or outside or glued to the shoe part 101. In this way, the fastening block 135 additionally increases the stability of the shoe part. However, the fastening block 135 can also be part of the material of the shoe part 101, such as carbon or composite material.
The first through-opening 113-1 is arranged in the center of the intermediate adapter 107, the second through-opening 113-2 is arranged on one side 115-1 of the intermediate adapter 107 and the third through-opening 113-3 is arranged on the other side 115-2 of the intermediate adapter 107. The first through-opening 113-1 is circular with a diameter of 6 mm.
Corresponding to the function of the mounting plates, the lateral through-openings 113-2 and 113-3 have a slot shape that extends perpendicular to the longitudinal direction. Due to the slot shape, the respective fastening screw can be displaced in the through-openings 113-2 and 113-3, for example by up to 7 mm. In addition, the second through-opening 113-2 on one side 115-1 of the intermediate adapter 107 is offset backwards in the longitudinal direction relative to the third through-opening 1133 on the other side 115-2 of the intermediate adapter 107.
Furthermore, the intermediate adapter 107 includes a central portion 117 which is recessed relative to the side portions 119-1 and 119-2 for inserting a rail 103. The recess of the central portion 117 is 6 mm, for example. This achieves a low mounting height. In the top view, the intermediate adapter 107 is U-shaped. The side portions 119-1 and 119-2 are arranged laterally on the central portion 117 and have a greater length than the central portion. A through-channel 127 of the through-opening 113-1 protrudes from the intermediate adapter 107 in the direction of the shoe part 101, for example by 5 mm.
The intermediate adapter 107 includes beveled lateral surfaces 125 which widen the intermediate adapter 107 in the direction of the shoe part 101. This widens the contact surface of the intermediate adapter 107 on the shoe part 101. The intermediate adapter 107 includes an inner cavity 121 which has hexagonal or honeycomb-shaped support structures 123. In this way, the weight of the intermediate adapter can be reduced so that it is as light as possible.
The intermediate adapter 107 allows central fastening of the rail 103 under the shoe part 101 with the option of displacing the rail forwards, backwards or sideways. The intermediate adapter 107 can be manufactured in one piece or in several pieces.
In contrast, the two lateral through-openings 113-2 and 113-3 are configured hole-shaped with a diameter of 6 mm. In this case, M6 fastening screws can be used. In general, the diameter can also have other sizes, so that M5 to M8 fastening screws can be used.
These are used to fasten the shoe part 101 directly to the intermediate adapter 107. The second through-opening 1132 on one side 115-1 of the intermediate adapter 107 is offset rearwards in the longitudinal direction relative to the third through-opening 113-3 on the other side 115-2 of the intermediate adapter 107. The through-channels 127 protrude from the intermediate adapter 107 in the direction of the shoe part 101, for example by 5 mm. In contrast, the lateral through-channels 127 are beveled so that insertion into the shoe part 101 is facilitated.
This intermediate adapter 107 includes a central portion 117 which is raised relative to the side portions 119-1 and 119-2, for example by 6 mm. The rail 103 is fastened to this central portion 117. The two side portions 119-1 and 119-2 are arranged laterally on the central portion 117.
The intermediate adapter 107 can be used to realize a general purpose interlink system for inline skates, which enables the fastening of different rails 103, such as the Universal Fixation System (UFS), Trinity and the 165 mm standard fastening. The intermediate adapter 107 can include a fastening block made of aluminum or other materials.
The rail can generally be fastened to the intermediate adapter 107 or to the shoe part 101. The intermediate adapter 107 can be fastened by screws, rivets or a quick-locking system in the corresponding holes, slots and recessed areas.
The intermediate adapter 107 can be fastened to the underside 109 of the shoe part 101 from the outside of the shoe part 101. However, the intermediate adapter 107 can also be fastened to the underside 109 of the shoe part 101 from the side or from the inside. A locking pin system can be used to fasten the intermediate adapter 107.
The shoe fastening system 100 can be used in conjunction with different wheel sizes between 50 mm and 150 mm. Different wheel configurations can also be used, for example 2 to 5 wheels or more. The shoe fastening system 100 can be used not only for inline skates, but also for ice skates or short skis (snow blades).
The shoe fastening system 100 and the intermediate adapter 107 can be manufactured using 3D printing, CNC manufacturing or additive manufacturing. The shoe fastening system 100 and the intermediate adapter 107 may also be made based on carbon fiber layers and a compression of carbon fibers. The shoe fastening system 100 is compatible with a shoe part 101 with a flat sole.
All the features explained and shown in connection with individual embodiments of the disclosure can be provided in different combinations in the subject-matter according to the disclosure in order to simultaneously realize their advantageous effects.
The scope of protection of the present disclosure is given by the claims and is not limited by the features explained in the description or shown in the figures.
| Number | Date | Country | Kind |
|---|---|---|---|
| 23 206 136.6 | Oct 2023 | EP | regional |
