RU2775384C2 - Roller ski shock absorber - Google Patents

Abstract

FIELD: ski shock absorbers.

SUBSTANCE: inventions relates to roller ski shock absorbers, which are a structure for damping vibrations that occur when roller skiing on an asphalt surface and creating a feeling of snow, which is typical for skiing on snow. The roller ski shock absorber consists of a wheel holder (1) and a shock absorber holder (3), connected to each other by a rubber strip (2) in the rubber vulcanization process, while the shock absorber holder is rigidly attached to the end of the roller ski body (4), and the wheel the axle (6) with the wheel (5) is rigidly attached to the protruding end of the wheel holder (1). The second option provides for the body (4) of a roller ski and the holder (1) of the wheel, connected to each other by a rubber strip, as a result of which the use of the holder (3) of the shock absorber is excluded. The rubber strip (2) is vulcanized to the body of the roller ski and the wheel holder. Roller ski shock absorber is made with the possibility of rotation around its center (7) of rotation, when the load on the ski from the weight of the skier arises and disappears.

EFFECT: ski shock absorbers improvement.

4 cl, 6 dwg

Description

Technical field

The present invention belongs to the class of sports products and is a shock absorber for roller skis, made with the possibility of damping vibrations. The present invention relates to class A63C 5/075 (2006.01) IPC.

Technical task

The present invention is intended to solve the problem of dampening the vibrations of roller skiing on an asphalt surface in order to bring roller skiing as close as possible to Nordic winter skiing in terms of vibration level and overall feel (feel of snow).

State of the art

The basis of the existing technical solutions for the design of a roller ski are the wheels of a roller ski, rigidly attached to the body of a roller ski. The design of this type of inline ski produces a high level of vibration and tremor of the rear wheel, which prevents proper coordination of the inline ski and significantly impairs the snow feel characteristic of snow skiing.

One seemingly better solution is disclosed in patent application RS20120334A, which proposes that the wheels are not rigidly attached to the roller ski fork, but to the end of a U-shaped wire spring, while the other end of said spring should be rigidly attached to the roller ski fork. . In this case, the end of the specified spring, holding the wheel, can rise up and down when the load from the body weight on the roller ski occurs and is removed. This technical solution has two obvious disadvantages. First, it produces excessive torsion of the wheel axle when skiing because the wheel carrier is a wire spring and thus makes any high speed skiing impossible, especially when cornering. Secondly, it does not solve the problem of vibrations, because the metal wire spring is located directly on the metal fork of the roller ski.

The essence of the invention

The essence of the present invention lies in the fact that the roller ski shock absorber eliminates vibrations when roller skiing on an asphalt surface and reduces the position of the center of gravity of the roller ski by several millimeters due to its work, which is rotation around its center of rotation. Without a shock absorber, the position of the center of gravity can only be reduced by bending the body of the ski under the influence of the weight of the skier's body. The complete reduction in the position of the center of gravity of a roller ski due to the combined action of the shock absorber and the bending of the ski body is the same as in the case of Nordic skiing on snow. It is the elimination of vibrations and the indicated lowering of the center of gravity that create the sensation of snow. The shock absorber design of a roller ski eliminates any friction between its metal parts, greatly increasing its usability. Vibration damping occurs due to the fact that the wheel holder and the shock absorber holder are connected to each other by a rubber strip, which prevents the transmission of vibrations from the wheel holder to the ski body.

According to the basic alternative, the wheel holder and the rubber shock absorber holder are connected by a rubber strip during the vulcanization process. One end of the wheel holder protrudes from the end of the ski, and a wheel axle with a wheel is attached to this end.

According to another alternative, the wheel holder is directly attached to the end of the ski with a rubber strip during the rubber vulcanization process, while one end of the wheel holder protrudes from the end of the ski, and the axle (and wheel) is rigidly attached to this end. The basic alternative provides the possibility of replacing a damaged shock absorber, unlike the other alternative.

Brief description of the drawings

On FIG. 1 shows a roller ski shock absorber with its constituent parts (basic alternative).

On FIG. 2 is a top view of a shock absorber attached to the end of a ski.

On FIG. 3 is a front view of two roller ski shock absorbers rigidly attached to one end of a roller ski.

On FIG. 4 is a side view of a roller ski shock absorber attached to one end of the roller ski, with the wheel and its axle before the weight of the skier's body is placed on the body of the roller ski.

On FIG. 5 is a side view of a roller ski shock absorber attached to one end of the roller ski, with the wheel and its axle after the weight of the skier's body has been placed on the body of the roller ski.

On FIG. 6 is a front view of two roller ski shock absorbers directly attached to the end of a roller ski during rubber vulcanization (another alternative).

Detailed disclosure of the invention

On FIG. 1 shows a side view of a roller ski shock absorber, containing a wheel holder (1) and a roller ski shock absorber holder (3), connected to each other by a rubber strip (2) of rectangular shape and a certain thickness during rubber vulcanization.

On FIG. 2 is a top view of the roller ski shock absorber and roller ski body (4), showing that the front end of the shock absorber holder (3) and the rubber strip (2) coincide with the end of the roller ski body (4).

On FIG. 3 shows two roller ski shock absorbers attached to the end of the roller ski body (4), wherein the roller ski shock absorber holder (3) is rigidly attached to said roller ski body (4).

On FIG. 4 is a side view of a roller ski damper connected to the end of the roller ski body (4) with the wheel (5) with its axle (6) before placing the weight of the skier's body on the roller ski. On FIG. 4 also shows the center (7) of rotation of the wheel holder (1) placed just with the rubber at a point 2/3 of the length of the rubber strip (2) from the end of the ski. In roller skiing, the skier's weight shifts from one roller ski to another. When the weight of the skier's body is transferred to the body of the roller ski, the front end of the wheel holder (1) on the wheel axle (6) moves upwards, while the rear end of the wheel holder (1) simultaneously moves downwards, as shown in FIG. 5, by lifting the body weight from the roller ski, the front end of the wheel holder (1) moves back to its original position, and the rear end of the wheel holder (1) moves in the same way. This means that the wheel holders (1) constantly rotate in a limited manner around the center (7) of rotation. The lateral rotation of the ends of the wheel holder (1) causes in the rubber strips (2) a constant stretching of the front section of the rubber strip (2), which is stretched to a greater extent than its rear end, while in the center (7) of rotation the rubber strip (2 ) tends to curl. The rotation of the holder (1) of the wheel occurs as a result of the fact that the front end of the holder (1) of the wheel protrudes (like a console) from the body (4) of the roller ski, and the wheel with the wheel axle (6) is rigidly attached to the specified end of the holder (1) of the wheel .

On FIG. 5 shows a side view of a roller ski shock absorber connected to the end of the roller ski body (4) and the wheel (5) with its axle (6) at the moment the skier's body weight is placed on the roller ski body (4), which then causes the holder (1) to rotate. ) wheels.

On FIG. 6 shows another alternative with the wheel holder (1) and the end of the body (4) of the roller ski, which are directly connected to each other by a rubber strip (2) during the rubber vulcanization process. This technical solution eliminates any need for shock absorber holder (3) and makes production more economical.

The shock absorber of a roller ski operates on the principle of stretching, not compressing rubber.

Industrial Applicability

Roller ski shock absorber can be applied as sports roller skiing equipment.

Claims (4)

1. A roller ski shock absorber, containing a wheel holder (1), connected to the roller ski body (4) in such a way that the front end of the wheel holder (1) protrudes beyond the end of the roller ski body (4), while to the front end of the holder (1 ) of the wheel, a wheel axle (6) is rigidly attached, designed to support the wheel (5), and the body (4) of the roller ski and the holder (1) of the wheel are connected to each other by a rubber strip (2) attached to the holder (3) of the shock absorber, which , in turn, is rigidly attached to the body (4) of the roller ski, which allows the holder (1) of the wheel to rotate around its center (7) of rotation when the load from the weight of the skier is applied or removed. 2. Roller ski shock absorber according to claim 1, wherein the rubber strip (2) is attached to both the wheel holder (1) and the shock absorber holder (3) by a vulcanization process. 3. A roller ski shock absorber, containing a wheel holder (1), connected to the roller ski body (4) in such a way that the front end of the wheel holder (1) protrudes beyond the end of the roller ski body (4), while to the front end of the holder (1 ) of the wheel, a wheel axle (6) is rigidly attached, designed to support the wheel (5), and the body (4) of the roller ski and the holder (1) of the wheel are connected to each other by a rubber strip (2), which allows the holder (1) of the wheel to rotate around its center (7) of rotation when the load from the weight of the skier arises or is removed. 4. Roller ski damper according to claim 3, wherein the rubber strip (2) is attached to both the wheel holder (1) and the roller ski body (4) by a vulcanization process.

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