SI24286A - Safety system for ski unbinding with active eject - Google Patents

Abstract

The safety system for the removal of an active-eyed skis solves the problem of the disconnection of the skis and the connection of ski boots in critical situations on the basis of the released energy of the corresponding quantity of pyrotechnic mixtures or gas generators forming part of the electronic triggering system powered by a battery that the skier is wired or wireless activated alone or with the help of additional sensors. In particular, the system prevents the damage of the legs in the fall, where the forces from the skis are passed on to the skier's feet. The active ski lift allows a quick sweep of the skis in a few milliseconds, while the skier can easily control his movement in the fall. The devices for horizontal and vertical ejection of skis and bindings can be installed and used when combined or separately. An active ski lift system provides additional protection for the skier against damage and does not affect the operation of the existing classic passive ski lift system, while the small weight and size of the equipment does not affect the skiing dynamics and characteristics of the ski equipment.

Description

The object of the invention is a system and ejectors for actively releasing skis in critical situations based on the thrust force of the released energy of pyrotechnic mixtures or gas generators.

A technical problem solved by the invention is the construction of ejectors and a system of rapid and reliable active ski unplugging, which the skier can wire himself or wirelessly alone or with the help of additional sensors, when he finds and estimates that skiing will no longer be controlled and it will no longer be possible to fall. prevent.

Description of the problem and solutions to date

Primarily, the system is designed to actively protect professional skiers from injuries to the legs and body in various skiing disciplines, especially in those where high speeds are achieved or the likelihood of falls with injuries is very high (skiing, super giant slalom, freestyle skiing, acrobatic skiing, ski jumping...).

With the now used passive opening of the ski ties, they must be acted upon by a predetermined force on the ski ties in order to open them from the ski boots.

In most cases, this is sufficient, but in some cases, due to the direction and dynamics of the forces acting on the ligament, the release occurs too late or does not occur at any given set force, which can lead to severe injuries, especially in the leg area.

In the event of timely active ejection of the skis, these loads resulting from the impact of the skis against the ground and other objects do not occur. The active system of releasing the skis prevents, in the first place, injuries to the legs during falls, where forces from the skis are transmitted to the skier's feet. By ejecting the skier, the skier avoids the most serious injuries caused by heavy forces when the skis are stuck against a snow base or other objects.

The system also prevents damage that would result from the impact of the skis on the skier, as it pushes the skier away from the skier's direction in the early phase of the fall. As the system recovers, the skier becomes more agile and can continue to pay attention to the correct movements and postures to the body, which mitigates the fall, and thus can reduce the potential for additional damage to the entire body.

So far, very few solutions have been offered in the area of active ski lifting. The patented solutions to date represent relatively large sized devices, typically mounted on a back link ski. Ejection is achieved either by bond spacing (patent US2005167950), by using compressed gases or electrodes (AU8120701, EP1386644).

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The fact that the solutions have not yet been developed and applied can be seen in the fact that active skiers are not used by professional skiers, since even in the high-risk industries, classic, passive forms of ski ejections are still used. As a result, more severe fall injuries continue to occur frequently, largely due to the aforementioned disadvantages of passive loosening with prestressed ties.

Description of the invention

An unresolved problem so far is the implementation of an active ski unblocking system, which by its shape, size, weight and mounting will not change the characteristics of the ski equipment and the dynamics of skiing while ensuring easy, safe and fast active ejection of the skis before or during the fall of the skier.

In the invention, the problem is solved by a system and devices that enable extremely fast and reliable release of the ski in a few milliseconds by the active force of a linear actuator, which is filled with a gas generator or a pyrotechnic device, which wire or wirelessly activates the associated electronic trigger system. When the linear actuator is ignited, the pressure that acts on the propulsion force of the actuator rapidly increases.

The invention is described and shown in the figures showing:

FIG. 1 Installation of the active ski release system Fig. 2 Ejector device for horizontal unbending of skis and ties from ski boots. FIG. 3 Ejector device for vertically releasing skis and ties from ski boots

Active linear actuators for horizontal and vertical lifting of skis from ski boots shall be installed on both skis below the ski boots or. between the anterior and posterior ligaments (Fig. 1). The drives of ejectors are extracted from pyrotechnic mixtures or gas generators, allowing a short reaction time, measured in a few milliseconds. The start is triggered by the skier and sensors using an electronic system. The electronic system is powered by a battery. The forces required for the release work only between the skis and the shoes, since the forces are not transmitted to the skier during the release. This prevents direct damage to the body due to the forces that would result from the existing connections, as well as greatly reduce the chances of the skier hitting the skis, since the system can push them away from the skier's direction in a timely manner.

The required thrust forces F _v and F _{H are} provided by an adequate amount of gas generator or pyrotechnic mixture. The rapid ejection of the ski is facilitated by the explosive chain reaction of the mixture (Fig. 3). Ejection can be initiated by the skier himself e.g. by pressing the sensors in the ski pole or glove or with teeth clenching if the sensor is placed in the mouth. The installed sensors on the skis can help the skier to turn on the system or. in some cases, they trigger the ski unblocking system themselves.

Active skid release is provided by two systems, the front active horizontal ejection system (Fig. 2) and the rear active vertical ejection system (Fig. 3). The systems operate separately and can be installed and used in combination or separately individually, depending on needs and purpose.

Description of the operation of the front active system for horizontal ski lifting (3, Fig. 2):

Skier or. the sensors give an electrical signal that activates a linear actuator (14) through the wires (15). The linear actuator pushes the pin (13) mechanism (12) within a few milliseconds. The stud slides vertically into the groove of the mechanism (11) and moves vertically toward the ski boot. After completing a certain path of the shoe, its height is raised so that the shoe horizontally hits the hole in the shoe hole thus prepared. In the resulting contact, the horizontal force F _H acts, pushing the shoe out of the tie in the horizontal direction, thus releasing the ski from the shoe.

The time characteristic of the force F _H is determined by the choice of gas generator or pyrotechnic mixture and the amount of mixture.

The forces F _h that occur when the skis are released from the shoe are not transmitted to the skier.

Description of the operation of the last active vertical ski release system (5, Fig. 3):

A linear actuator is positioned between the ski and the ski boots. Skier or. the sensors give an electrical signal via a wire (25) which activates the gas activator or pyrotechnic mixture (24). The thrust piston (23) pushes the shoe vertically with force F _{into the} milliseconds, releasing the ski and the shoe ties.

The temporal characteristic of the force F _v is determined by the choice of gas generator or pyrotechnic mixture and the amount of mixture.

The forces F _v acting to release the ski from the shoe shall not be transferred to the skier.

Active opening systems are mounted on both skis during or in conjunction (Fig. 1). Installed systems shall be triggered simultaneously or separately or separately. if the front and rear ejectors are installed, they can be delayed.

An active ski release system does not affect the performance of the existing classic passive ski release system, it only complements it.

The required active forces F _H and F _{in the} ejection skis are not transmitted to the skier, except for the dynamic reaction force, which depends on the shock of the force, whose temporal characteristic can be adjusted as a function of the dependence of the magnitude and direction of the force on time.

Also, the shape and low mass of the devices do not affect the dynamics of the ski and the system does not change the characteristics of the ski equipment. The dimensions of the devices do not exceed the existing dimensions of the existing ski equipment, the total weight of the equipment does not increase with the installation of the devices to such an extent that it could have a noticeable effect on skiing, since the constituent elements are made of light metal and non-metallic materials and are mostly installed in the existing ones. parts of ski equipment.

Claims (5)

1. A safety system for releasing skis with active ejection from ski boots on the basis of actuator drive to a pyrotechnic mixture, gas generator or other propellant, characterized in that it actively ejects skis and ski ties with the equipment from ski boots and pushes or discards skis, and ties away from the skier or jumper with the actuator's thrust force based on the released energy of the pyrotechnic mixture, gas generator or other propellant. 2. Activator-based active ejector ski ejection safety system according to claim 1, characterized in that it allows active ejection of the ski and ties from the ski boots and pushes the skis and ties away from the skier or jumper and is electrically actuated via ignition wires (7) guided and actuated by a skier or jumper and / or programmed electronic unit connected in its entirety by wire and / or wireless to the processor, electronic memory and other elements and associated force sensors, global and local positions, deformations, displacements , vibration, sound, acceleration and / or gyroscope consisting of a horizontal (3) and / or vertical (5) ejection device mounted either in the lower part of the ski boot or on the ski (1), in the spacer plate (4), under or in the boot, in front of the front ski link (2) or between the front (2) and rear (6) ski link. Active ejection ski release system with a device for horizontal ejection of skis and bindings (3) from ski boots according to claims 1 and 2, characterized in that it actively ejects the skis and bindings from ski boots with actuator force and pushing skis and the ties of each in its direction or forward away from the skier or jumper, electrically actuated by the skier or jumper and / or electronic unit, and consisting of a base or anchor plate with attachments and grooves (11), a driving mechanism for guiding the ejector (12), ejector (13), drive actuator (14), and ignition wires (15). Active active ejection ski release system with a ski and ejector device (5) from ski boots according to claims 1 and 2, characterized in that it actively ejects the ski from the ski boots with actuator actuator actuated electrically actuated by the sides of the skier or jumper and / or electronic unit consisting of a base or anchor plate (21), an outer jacket (22), any intermediate thrust rollers (26) and an internal thrust roller (23), a drive actuator (24) and ignition wires ( 25). Active active ejection ski release system with a ski ejector device and ski boot ties according to claims 1 and 2, characterized in that it actively ejects the ski and ski boot ties with the actuator actuated electrically by the skier or jumper and / or electronic units and consisting of a hollow outer circumference of elastic or rubber material made of one or more jointed pieces in which the actuator is located and of firing wires for actuation.