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RU-2861714-C2 - PART OF BINDING SYSTEM

RU2861714C2RU 2861714 C2RU2861714 C2RU 2861714C2RU-2861714-C2

Abstract

FIELD: sports equipment. SUBSTANCE: present invention relates to a part of a binding system for skiing, comprising a housing (3; 8) with an axial sleeve (13) extending completely or partially through it, having an internal diameter (14), in which two pins (1) are located, capable of moving in each direction, with at least one intermediate spring element (2), the pins (1) being slidable in the sleeve (13) between a protruding and a retracted position. According to an aspect of the invention, the part of the pins (1) which is open when the pins (1) are in the protruding position has an outer diameter (15) smaller than the inner diameter (14) of the sleeve (13). The invention also relates to a method for lubricating the pins (1) with a lubricant. EFFECT: improved construction. 14 cl, 35 dwg

Inventors

  • GOVERUD-HOLM, Thomas
  • ANDERSSEN, MAGNUS
  • SVENDSEN, OYVAR
  • DANIELSEN, JORN FRODE
  • Flem, David Klovning
  • JONES, EDWARD

Dates

Publication Date
20260508
Application Date
20220107
Priority Date
20210108

Claims (15)

  1. 1. A part of a ski fastening system comprising transverse, protruding, movable pins and located on a ski boot, wherein the part of the ski fastening system also comprises a housing (3; 8) with an axial sleeve (13) passing through it inside, completely or partially, in the front part of the sole of the ski boot, wherein the sleeve has an internal diameter (14), wherein two pins (1), configured to move in each direction of said sleeve, are located with at least one intermediate spring element (2), wherein the pins (1) are configured to slide in the sleeve (13) between a protruding and a retracted position,
  2. characterized in that the sleeve (13), through which the pins (1) pass, consists of inserts (10), which are pressed into the housing (3; 8), the part of the pins (1), which is open when the pins (1) are in the protruding position, has an outer diameter (15) smaller than the inner diameter (14) of the inserts (10) and the inner diameter of the non-open part of the pins, wherein the reduced diameter of the pin (1) is unchanged and forms a straight supporting surface.
  3. 2. A part of the fastening system according to paragraph 1, characterized in that the head end of the pin (1) is rounded with a constant radius of curvature.
  4. 3. A part of the fastening system according to paragraph 1, characterized in that the pins (1) contain a base (9), wherein the base has a diameter greater than the internal diameter (14) of the inserts (10).
  5. 4. A part of the fastening system according to claim 1, characterized in that the housing (3) contains a closable opening (16) that provides access from the side to the part of the sleeve (13).
  6. 5. A part of the fastening system according to paragraph 4, characterized in that the size of the opening (16) is sufficient for mounting and dismounting the pins (1) and at least one spring element (2).
  7. 6. A part of the fastening system according to paragraph 4, characterized in that the opening (16) is provided with a cover (5).
  8. 7. A part of the fastening system according to claim 1, characterized in that the insert (10) is provided with at least one container (11) for lubrication in the form of a hole, opening, groove or recess.
  9. 8. A part of the fastening system according to claim 1, characterized in that at least one container (11) for lubricant in the insert (10) is provided at a distance from the outer edge (12) of the insert (10), which is deeper than the pin segment (1) with a reduced diameter.
  10. 9. A part of the fastening system according to claim 1, characterized in that each pin (1) is provided with at least one sealing ring (4), which completely or partially seals the space between the outer surface of the pins (1) and the inner surface of the sleeve (13).
  11. 10. A part of the fastening system according to paragraph 1, characterized in that the insert (10) is made with grooves on the outer surface.
  12. 11. A part of the fastening system according to claim 1 or 3, characterized in that each pin (1) is provided with at least one sealing ring (4), which completely or partially seals the space between the base (9) of the pins (1) and the inner edge (15) of the insert (10).
  13. 12. A part of the fastening system according to claim 3, characterized in that each pin (1) is provided with 2 sealing rings (4, 4'), wherein the first sealing ring (4) is adjacent to the base (9) of the pin, and the second sealing ring (4') is located in a radial, annular groove in the pin, wherein the second sealing ring (4') is provided at a distance from the outer edge (12) of the insert (10), which is deeper than the innermost edge of the container (11) for lubricant, when the pin (1) is in a protruding state.
  14. 13. A method for servicing a part of the fastening system according to claim 1, characterized in that one of the pins (1) is pushed past the retracted position so that the part of the pin (1) with a reduced diameter enters inside behind the innermost part of the insert (10) with the formation of a gap between the pin (1) and the insert (10), through which the grease is pressed and then passes behind the base into the spring element (2) in the chamber of the spring element.
  15. 14. A method for servicing a part of the fastening system according to paragraph 13, characterized in that one of the pins (1) is pushed beyond the retracted position so that the part of the pin (1) with a reduced diameter overlaps the part of the insert (10) containing the lubricant container, so that a gap is formed between the pin (1) and the insert (10), through which the grease is pressed and then passes into the lubricant container (11).

Description

The present invention relates to a part of a ski fastening system, more particularly to a fastening system for cross-country skiing, off-piste skiing or mountain ski touring, as specified in the preamble of claim 1. LEVEL OF TECHNOLOGY EP 1845815 A1, EP 0551899 B1, and EP 2116286 B1 illustrate various aspects and embodiments of bindings for alpine and cross-country skis currently in use. These binding systems comprise a fixed, transverse pin located at or near the tip of a ski boot, between two longitudinal sole elements. This pin can be inserted into a pin-receiving transverse groove in the ski binding, and some type of mechanism for mechanically rocking, rotating, or shifting a clamp or retainer that maintains the pin in place in the groove. In addition, these conventional binding systems comprise various types of flexors, levers, angles, and material with different properties that impart ease of use, ski control, stiffness/softness, durability, etc. to the binding system. While this type of fastening works well, it is clear that much potential for improvement has already been exhausted from the systems given the physical and dimensional limitations, such as pin width and thickness. EP 2946818 B1 shows a binding system comprising two protruding, transverse pins or pins that are spring-loaded and can be snapped into a holder or the like mounted on a ski, see in particular Figs. 3-4c. Although EP 2946818 B1 primarily relates to a binding system intended for alpine ski touring, there are aspects of the solution that may be useful for cross-country skiing and off-piste skiing. The solution may, among other things, provide greater torsional resistance with an increase in the width of the attachment points. Otherwise, EP 2946818 B1 relates to solutions with pin compression when a ski boot is to be released from a holder mounted on a ski. For example, a solution is proposed for a system with a button and an insert that are mounted in holes in the holder into which the pins are received. The pins are indirectly pushed out of the hole by pressing the button. There are also other examples of binding systems containing protruding, spring-loaded, offset pins, such as DE 3141425 A 1981 and CN 1178371 A 1971, but these are intended for releasing snowboard bindings, ski bindings or other applications. None of the above mentioned solutions that are relevant to the present invention mention how the moving protruding pins can be implemented in practice so that they function as intended over time. The pins must be placed on the ski boot, stored and spring-loaded in a fully or partially enclosed housing. Ski boots are designed to withstand a wide range of temperatures and humidity conditions, from extreme cold to above-zero temperatures, and from cold, dry air to slush and water on the surface. The boots and protruding pins are also exposed to gravel, sand, asphalt, as well as impacts and scratches. Furthermore, it should be taken into account that boots are not used for most of the year, for example, stored in a booth, hut, or in a closet. The housing, springs, and pins are exposed to condensation, large temperature fluctuations, and mechanical wear, which can quickly cause pins to become stuck due to corrosion or mechanical scratches or damage. Therefore, the objective of the present invention is to create a fastening system comprising transverse, protruding, movable pins that can withstand operating conditions. Another objective is to create a system that is simple to manufacture, easy to operate, and has easy-to-replace parts, which functions even after long periods of non-use, and/or which functions even when worn. These and other problems are solved using the device described in the characterizing part of claim 1 and the method according to claim 14. Additional advantages and/or alternative embodiments are disclosed in the dependent claims of the invention. ESSENCE OF THE INVENTION According to one aspect, a part of a ski fastening system is proposed, comprising transverse, protruding, movable pins and located on a ski boot, wherein the part of the ski fastening system also comprises a housing with an axial sleeve passing through it inside, completely or partially, in the front part of the sole of the ski boot, wherein the sleeve has an internal diameter, wherein two pins, configured to move in each direction of said sleeve, are located with at least one intermediate spring element, wherein the pins are configured to slide in the sleeve between a protruding and a retracted position, wherein the sleeve through which the pins pass consists of inserts that are pressed into the housing, the part of the pins that is open when the pins are in the protruding position has an external diameter smaller than the internal diameter of the inserts and the internal diameter of the non-opened part of the pins, wherein the reduced diameter of the pin is unchanged and forms straight supporting surface. The head end of the pin is prefera