Ski crampons
The ski crampons with C-shaped clamps and interchangeable blades address the limitations of existing crampons by allowing attachment without boot detachment, ensuring safe and versatile use across different ski sizes.
Patent Information
- Application Number
- PCT/IB2025/051839
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-22
- Filing Date
- 2025-02-20
- Publication Date
- 2025-08-28
AI Technical Summary
Existing ski crampons require boot detachment for activation, are cumbersome, limited in application, and transmit forces to boot-binding attachment points, making them unsafe, time-consuming, and not universally adaptable to different ski sizes.
Ski crampons with C-shaped clamps and interchangeable blades, attachable anywhere along the ski without boot detachment, transmitting forces directly to the ski, lightweight, and compact for easy carrying.
Provides safe, convenient, and versatile crampon attachment directly to the ski, ensuring balanced force transmission and universal fit across various ski sizes.
Smart Images

Figure IB2025051839_28082025_PF_FP_ABST
Abstract
Description
[0001] Description
[0002] Title of Invention: Ski crampons The subject of the utility model is crampons for skis, for use in mountain tourism, when moving on skis or specialised snowboards knowsn as splitboards. In order to be able to travel uphill on skis or a splitboard, the skier can apply so-called: 'ski skins', measuring approximately the same length and width, attached to the tip and to the heel of the ski, the lower side of which is covered with a layer of short fibres that extend from the base of the ski skin towards its rear end, providing directional friction that allows the ski to glide forward but not to slide backward. While the skins are effective in preventing skis from sliding backwards on moderate slopes, they are ineffective at steeper slope angles or in icy snow, the skier is forced to use crampons on the skis or take off boots and put on crampons, a type of sharp spike that is fitted to boots, skis or snowshoes to counteract sliding downwards. From patent description FR2551355A1, a ski anti-slip device is known, consisting of two clamps (crampons) placed on each side of the ski and movable between an inactive top position and an active bottom position. The clamps (crampons) are mounted on a flexibly deformable connecting plate attached to the ski, and locking elements allow the clamps to be locked in an upper or lower position. From patent description FR2593073A1, articulated crampons for skis, positioned in front of the boot, are known to allow skiers to climb any type of snow without having to fix the skins under the skis or having to climb in herringbone or using side steps. It comprises a belt , on which there are four articulated crampons that catch on the snow. The assembly is held in tension by a spring and the front and rear stops immobilise the slat to retract the crampons or immobilise them. Patent description JP2021069410A discloses a ski crampon, wherein the crampon member is fixed to the ski and the blade portion of the crampon is pivotally mounted on a pivot and held in a vertical position in a first position or in a second position in which the blade of the crampon is lowered down. The drawback of the presented crampon solutions is that they can only be activated when the ski boot is disconnected from the binding. This can be dangerous on a steep slope as it risks the skier accidentally losing their balance, is time-consuming and ultimately uncomfortable even on a low-angle slope, especially in deep snow where the skier can easily collapse when their weight is not supported by the entire ski surface. A further drawback of the solutions presented is that the crampons are attached to the boot or binding, with the result that most of the forces acting on the crampons are transmitted to the boot-binding attachment points, rather than to the entire ski surface. In addition, the crampons shown in the solutions cited are also limited in application in that they have a dedicated attachment point (e.g. the bottom of the boot or a mounting bracket) and cannot be moved to another location. Such crampons also require complex attachment mechanisms and large metal blades, which can be heavy and difficult to store compactly in a skier's backpack. In addition, because of the fixed width, such crampons are not universal and are not suitable for different sized skis.
[0003] Solution to Problem The aim of the utility model is to provide a solution of a lightweight, handy ski crampons that can be mounted at any point along the length of the ski, most convenient for the skier, without forcing him or her to unbind the boots from the bindings.
[0004] Fig.l i [Fig. 1] shows ski crampons in isometric view.
[0005] Description of Embodiments The ski crampons according to the utility model consist of two clamps (1) in the shape of the letter C. The blades (2) of the crampons are shaped from a single piece of material together with the clamps (1) or are a separate component, bolted to the clamp (1) with a screw or connected to the clamp (1) by an inseparable connection, either by riveting, or by welding, or by gluing. The clamps (1) either have an eccentric pressure on the ski or are connected to each other by a linkage (3). The linkage (3) is a tape or rope passing through the lugs (4) in the clamps. One of the lugs has a self-locking device (5) for linkage (3) tension. The ski crampons according to the utility model can be easily attached to skis, even fitted with skins, anywhere on the ski without having to unbind the boots from the bindings, crampons that transmit forces directly to the underside of the ski, can have interchangeable blades, and at the same time are lightweight, easy to carry and do not take up much space in a rucksack. An example of the implementation of the utility model is shown in the drawing disclosing the ski crampons consisting of two clamps (1) with the blades (2) screwed to them and connected by a linkage (3) threaded through a lug (4) and a self-locking device (5).
Claims
Claims
1. Ski crampons, characterised in that they consist of two clamps (1) shaped in the letter C, with blades (2).
2. The ski crampons according to claim 1, characterised in that the clamp (1) and the blades (2) are shaped from a single piece of material
3. The ski crampons according to claim 1, characterised in that the clamp (1) and the blades (2) are separate elements, connected to each other by an inseparable connection selected from the group comprising riveted, welded, glued, welded connections.
4. The ski crampons according to claim 3, characterised in that the clamps (1) and the blades (2) are connected to each other by screws.
5. The ski crampons according to claim 2 or 3 or 4, characterised in that the clamp (1) has an eccentric pressure on the ski.
6. The ki crampons according to claims 2 or 3 or 4, characterised in that the clamps (1) have lugs (4) with a linkage (3) threaded through them.
7. The ski crampons according to claim 6, characterised in that one of the lugs has a self-locking locking device (5).
8. The ski crampons according to claim 6, characterised in that the linkage (3) is a strap.
9. The ski crampons according to claim 6, characterised in that the linkage (3) is a cord.
Citation Information
Patent Citations
Device for fixing ski anti-backward-movement strips - has downward projections on clamps engaging ski edges
FR2223054A2
A demountable slope climbing grip for snow skis
GB2224448A
Apparatus for improving human mobility on snow surfaces
US20030075901A1
Climbing aid for fitting on a carving ski
WO2022253921A1