Ski boot with closure system for downhill skiing and / or ski touring

EP4482353A1Pending Publication Date: 2025-01-01GERSTGRASSER WILMAR
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Patent Information

Application Number
EP2023704158
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-02-25
Filing Date
2023-02-14
Publication Date
2025-01-01

AI Technical Summary

Technical Problem

Ski boots for downhill and touring skiing face issues with pressure distribution and slipping due to inadequate surface area of pressure elements and misalignment between cuff and shell, leading to blisters and increased strength requirements during climbing.

Method used

A ski boot design featuring a cuff articulated to a shell with a closure band guided through angled slots on the shell, providing better pressure distribution and preventing snow and water entry, with two closure devices positioned to align with the foot's anatomy, ensuring secure fastening without hard fastening elements.

Benefits of technology

The solution ensures secure, pressure-distributed fastening of the inner shoe within the shell, preventing slipping and blisters, and reducing the effort required during climbing and skiing by optimizing the angle and positioning of the closure devices.

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Abstract

The invention relates to a ski boot (100, 200) with an outer boot which comprises a cuff (104, 204) and is articulated on a shell (101, 201) at a point (103, 203), wherein at least one closure device (110, 210, 220) of the inner boot (120) extends at least partially in the interior of the outer boot. According to the invention, the closure device (110, 210, 220) comprises at least one strap which is guided through two slits (102, 202) formed in the shell (101, 201) between the cuff (104, 204) and the front tip (101a, 201a) of the shell, and the strap (110, 210, 220) extends between the shell (101, 201) and the inner boot (120) and outside on the outer surface of the shell (101, 201), and wherein the slits (102, 202) form an angle α to the sole of between 30° and 42°, and the strap has a width of between 30 mm and 50 mm, and the slits (102, 202) have a width that is greater than or equal to the strap (110, 201, 220).
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Description

[0001] Title: Ski boot with closure system for

[0002] Downhill skis and / or touring skis.

[0003] * * *

[0004] The present invention relates to a

[0005] Ski boot with a closure system, in particular a ski boot for downhill skiing and / or for touring skiing, according to

[0006] Preamble of claim 1.

[0007] Technical area

[0008] The technical area is ski boots, especially ski boots for mountain sports and downhill and cross-country skiing, where the ski boots have an inner boot / shoe, which is intended to warm the foot, and a

[0009] Outer shoe or upper leather made of a

[0010] "hard" material, e.g. plastic,

[0011] Carbon fiber material and the like. With these ski boots, it is important that the inner boot is attached together with the person's foot in the outer boot, which includes a shaft that

[0012] The shoe encloses the shin area of ​​the user's leg and is hinged to a shell that instead contains the user's foot and is equipped with a sole. The outer shoe is usually made of plastic and has the required

[0013] Rigidity. This shell typically consists of an upper and a lower part. These two parts can be pivoted and / or rotated relative to each other. When walking and / or climbing, rotation between the shell and the leg is allowed / allowed. This rotation can cause the liner and shell to slip, which can lead to blisters and / or require more strength when climbing.

[0014] State of the art

[0015] According to ITVR20080072, a ski boot is known which defines an inner housing part for a corresponding thermal shoe or for a corresponding foot, wherein at least one closure device of the thermal shoe or of the foot extends at least partially into the interior of the inner housing part and a pressure body is provided which is intended to press against a corresponding impact zone of the thermal shoe or of the foot.

[0016] The ski boot described above presents several problems: First, the pressure hull doesn't have enough surface area to distribute the pressure force. A major problem arises from the positioning of the pressure hull relative to the connection between the cuff and the shell.

[0017] CH 4 81 593 discloses a ski boot comprising an inner boot and an outer boot, the outer boot being provided with a strap, which connects the strap around the inner boot to the sole. This solution presents the same problems as the above prior art.

[0018] Brief description of the invention

[0019] In this description and the appended claims, "substantial" is understood to mean a deviation of plus / minus 5° or plus / minus 5%, unless otherwise stated. The object of the present invention is to provide an alpine ski and mountaineering boot that eliminates the aforementioned disadvantages of the prior art. This purpose is achieved by a ski boot according to the characterizing part of claim 1.

[0020] A ski boot is proposed which comprises an outer boot with a cuff which encloses the shin area of ​​the user's leg, the cuff being hinged to a shell which instead contains the user's foot and is provided with a sole which extends in a plane from the front binding to the rear binding of the shell to a ski binding, and the outer boot defining a housing for a

[0021] inner shoe / thermal shoe or for a respective foot and at least one closure device of the inner shoe or the foot extends at least partially inside the outer shoe.

[0022] According to the invention, the closure device comprises at least one strap guided through two slots formed in the shell between the upper and the front tip of the shell, wherein the slots form an angle α with the sole of between 30° and 42°, advantageously between 33° and 39°, and the strap runs between the shell and the liner and externally on the outer surface of the shell, and the strap has a width of between 30 mm and 50 mm and the slits have a width greater than or equal to the strap. It is advantageous that the strap fills the slot to prevent snow and / or water from penetrating the ski boot, and that a play-free guide enables more precise guidance of the strap and thus better pressure distribution.

[0023] Advantageously, two fastening devices are provided on the outer shoe, a first fastening device having slots on the front, ie closer to the front tip of the shell, which form an angle ß of between 10° and 25° with the sole, and the second is arranged between the first device and the upper, which forms an angle ß with the sole

[0024] Form an angle α between 33° and 39°. The inclination of the slots is determined by the inclination of the user's instep, so that in the front area this inclination β is smaller than α in the rear area.

[0025] The positioning of the front closure device is provided in the area of ​​the ball of the foot, in the

[0026] Metatarsal joints or in the transition between metatarsal bones and toes. Further features and details of the invention emerge from the claims and from the following description of a preferred, non-limiting

[0027] The design shown in the attached

[0028] Drawings, in which: Figure 1 shows a side view of a ski boot according to the invention, Figure 2 shows a side view of a ski boot according to the invention, Figure 3: a plan view of a ski boot according to the invention, Figure 4 shows a perspective view of a fastening device according to the invention for a ski boot, Figure 5: a front view of a fastening device according to the invention for a ski boot, Figure 6: a section through a

[0029] Ski boot according to the prior art, Figure 7: a section through a ski boot according to the invention, Figure 8: a side view of a ski boot in a second embodiment according to the invention, and

[0030] Figure 9 is a side view of a ski boot in a second embodiment according to the invention,

[0031] Figure 1 shows a ski boot 100 for skiing, particularly alpine skiing and ski touring. This boot 100 is attached to a ski by means of a mount. The ski boot 100 has an outer boot formed by a cuff 104 that encloses the shin region of the user's leg.

[0032] The cuff 104 is hinged at a point 103 to a shell 101, which instead receives the user's foot and is provided with the sole of the outer shoe, forming a defining housing for an inner shoe 120. This inner shoe is a thermal shoe, ie, for a corresponding foot, and at least one closure device of the inner shoe, ie, the foot, extends at least partially within the outer shoe.

[0033] The outer shoe is made of plastic and forms a housing for the user's foot.

[0034] The ski boot 100 has at least one locking device 110 for locking the inner boot and for

[0035] Clamping the outer shoe. This fastening device 110 consists of a band with a width between 30 and 50 mm. Preferably, the band 110 comprises two hook-and-loop zones 111 that allow the band to be attached to itself and form a hook-and-loop / zipper fastener. The band is passed through a ring 112, preferably made of a metal or plastic material. This ring is preferably attached to one end of the band 110.

[0036] The strap runs through two slots 102 formed in the shell 101 between the leg 104 and the front tip of the shell 101a, the slots 102 forming an angle α with the sole of between 30° and 42°, advantageously between 33° and 39°. The slots 102 have a width greater than or equal to (slot width ≥ strap width) the strap 110. Advantageously, the strap fills the slot 102 to prevent snow and / or water from entering the ski boot 100, and a play-free strap guide 110 allows for more precise guidance of the strap 110 and thus better distribution of pressure on the user's foot.

[0037] In this way, there are no hard fastening elements such as pins or the like in the outer boot, but only the strap is arranged in the interior of the outer boot. Preferably, on the shell 201, as shown in Figures 8 and 9, two fastening devices 210, 220 are located on the ski boot 200, wherein a first fastening device 220 has slots 222 at the front, i.e. closer to the front tip of the shell 201a, which form an angle ß between 10° and 25° with the sole, and the second fastening device 210 is arranged between the first fastening device and the

[0038] Cuff 204 forms an angle α between 33° and 39° with the sole. The inclination of the slots 202, 222 allows for a favorable distribution of the force on the foot, so that slipping of the inner boot 120 and / or the user's foot within the shell 201 is avoided, even during handling, which may occur during a ski touring ascent. Advantageously, the slots are arranged in the upper 1 / 2 (half) of the shell 101, 201. Also essential for the positioning of the slots 102, 222, 202 is the distance of the ski boot with respect to the point

[0039] 10 3,203 , to which the sleeve 10 4,204 is hinged to the shell 101,201. This

[0040] Distance depends on the shoe number (European shoe number) Minimum distance of the slots 102,202 from the point 103,203 in relation to the shoe number : shoe size 35-40, at least 25 mm

[0041] Shoe size 41-43, at least 30 mm

[0042] Shoe size 44-46, at least 35 mm

[0043] Shoe size 47 and over, at least 40 mm.

[0044] The sole is defined as the horizontal plane formed by the attachment of the shell to the front and rear ski attachments.

[0045] As shown in Figure 7, the force distribution extends over the entire

[0046] Top of the shoe 120. This is ensured by the device 110, 210, 220, which forms the slots 102, 202,

[0047] 22 0 so that they come closer together. At the same time, the band 110, 210, 220, which is between the

[0048] inner shoe 120 and the shell 101, 201, the inner shoe downwards into

[0049] Direction of the sole of the ski boot 100, 200, as shown by the arrows in Figure 7. This ensures secure attachment of the inner boot in the shell 101, 201. The width of the band optimally distributes the forces and thus prevents pressure points from forming.

[0050] According to the invention, the closure device 110, 210, 220 is a

[0051] Band and is arranged inside between the inner shoe 120 and the shell 101, 201 of the ski boot 100, 200 and rests on the outside on the upper outer surface of the shell 101, 201.

[0052] In this way, fixation is ensured.

[0053] The positioning of the front closure device is provided in the area of ​​the ball of the foot, in the

[0054] Metatarsal joints or at the metatarsal-toe transition. Finally, it is clear that additions, modifications, or variations that are obvious to a person skilled in the art can be made to the ski boot described so far without departing from the scope of the appended claims.

[0055] List of reference numbers

[0056] 100 ski boots

[0057] 101 bowl

[0058] 101a Shell front

[0059] 102 slots

[0060] 103 Point where the cuff is hinged to the shell

[0061] 104 cuff

[0062] 110 locking device / band

[0063] 111 Velcro area

[0064] 112 rings

[0065] 120 inner shoe / shoe

[0066] 200 ski boots

[0067] 201 bowl

[0068] 201a shell front

[0069] 202 slots

[0070] 20 3 Point where the cuff is hinged to the shell 204 Cuff

[0071] 210 locking device / band

[0072] 220 locking device / band

[0073] 222 slots

Claims

PATENT CLAIMS 1. Ski boot (100, 200) with a Outer shoe, which has a cuff (104, 204) includes the shin area of ​​one leg of a user surrounds and at a Place ( 103, 20 3) on a bowl ( 101 , 201 ) is connected to ge 1, where the Shell ( 101, 201 ) instead contains the user's foot and is equipped with a is equipped with a sole and the outer shoe has a casing for an inner shoe ( 120 ) or defined for each user's foot and at least one locking device (110 , 210, 220) of the inner shoe ( 120) or of the foot extends at least partially inside the outer shoe, characterized in that the closure device (110 , 210, 220) at least one band, which passes through two slits (102, 202) formed in the shell (101, 201) between the cuff (104, 204) and the front tip of the shell ( 101a, 201a) is conducted, and that Band ( 110, 210, 220 ) runs between the shell ( 101 , 20 1 ) and the I nn ens chuh ( 120) und auß en an der outer surface of the shell ( 101 , 201 ) and wherein the slots ( 102 , 202 ) form a Form an angle α with the sole between 30° and 42° and the band a has a width between 30 mm and 50 mm and the slots (102, 202) have a have a width that is greater than or equal to the band (110, 201, 220).

2. Ski boot (100) according to claim 1, characterized in that it comprises at least two closure devices (210, 220), wherein the first front closure device (220), i.e. closer to the front tip of the shell (201a), has slots (222) which form an angle β between 10° and 25° with the sole, and the second device (210), which is arranged between the first device and the cuff (204), forms an angle α between 33° and 39° with the sole.

3. Ski boot (100, 200) according to claim 1 or 2, characterized in that the slots (102 , 202, 222) are arranged in the upper half of the shell (101, 201).

4. Ski boot (100, 200) according to one of the preceding claims, characterized in that the slots (102, 202) extend from the point where the cuff is hinged to the shell (103, 203) in The shoe size is spaced apart depending on the shoe size: - Shoe size 35-40 at least 25 mm -Shoe size 4 1-43 at least 30 mm -Shoe size 44-46 at least 35 mm - Shoe size 47 and above at least 40 mm.

5. Ski boot (100, 200) according to one of the preceding claims, characterized in that a ring (112) is attached to one end of the strap of the The locking device ( 110 ) is arranged.

6. Ski boot (100, 200) according to one of the preceding claims, characterized in that the Closure device with Velcro - / Zipper ( 111 ) on we is .

7. Ski boot (100, 200) according to one of the preceding claims, characterized in that the slots (102, 20 2 , 222 ) have the same dimensions as the belt ( 110, 210, 220) .