JPH09155002A - Ski pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ski pole, with which the impulse received on the wrist of skier is instantaneously and efficiently buffered at the time of sticking the ski pole on the surface of snow, in simple and safe structure concerning the ski pole provided with the buffering device of impulse on a grip. SOLUTION: In the structure for which a sleeve 5 is mounted on a grip 4 and a shaft 1 is mounted on the grip so as to be mutually and freely slid up and down, an elastic buffering member 3 such as a rubber, synthetic resin, spring or air bag is installed between a stopper 2 fixed on the shaft and this grip. Besides, the elastic buffering member 3 is installed between a cover and a shaft head or the elastic buffering member 3 is installed between the cover and the upper end part of shaft 1 while being fitted to the upper end part of shaft 1. Further, the sleeve 5 is extended into the core of grip 4, the entire surface layer is covered with soft materials, and the impulse is buffered by the fixed grip in double layer structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski pole mainly used for alpine skis, and more particularly to a ski pole having a shock absorbing device on a grip suitable for general skiing in a snowy state.

[0002]

2. Description of the Related Art Titanium (CF
-TDR) and carbon fiber and other high-grade materials are used to make the shaft itself flexible so as to absorb the shock that occurs when the skier bends the shaft and the skier hits the ski pole on the snow surface. There is something.

Further, the technique is widely known in the general technical field, and a spring is built into the grip to buffer the shock by a shock absorber mechanism combining a piston and a cylinder. -1374
A ski pole as disclosed in Japanese Patent No. 5 has been proposed. That is, this ski pole is, as shown in FIG.
A cylinder 18 fixed to the shaft 1a side and a piston 19 fixed to the grip 4b side in the grip 4b.
A shock absorber mechanism 21 and a spring 20 interposed between the shaft 1a and the grip 4b. When the ski pole hits the snow surface, the piston 19 is enclosed in the cylinder 18 and between them. The spring 20 is configured to gently buffer and compress the spring 20 with the resistance of the air.

Similarly, in the prior art, Japanese Patent Application No. 5-5699
There are ski poles developed with the technology found in 9 to absorb shocks. With this technology, the upper end of the shaft is directly inserted into the inner space of the grip, and a cushioning material such as rubber, synthetic resin, or gel is inserted between the upper end of the shaft and the inner space of the grip. The shock is absorbed by the grip, and the upper end surface of the grip is penetrated through the hand-strap (strap) mounting part and the cushioning material inserted above, and is screwed into the inner plug (shaft head) of the upper end of the shaft. It has a screwed structure.

[0005]

When a skier slides on a slope, the skier usually slides down while rotating, but when the skier rotates, it is almost the same as the rotation motion to start the rotation motion called pole work. Use the same number of ski poles. Usually, the slopes are in a snow-pressed state, especially in many ski areas in Japan, where there are many hard-slope slopes, but the impact of a hard snow-powder grips the grip of the ski pole every time you hit the ski pole. It is directly transmitted to the wrist, elbows, shoulders, etc., and especially for skiers who frequently perform rotational movements aiming at advanced skiers of Alpine skiing, they will be continuously impacted during gliding, wrists, elbows, It hastened the fatigue of the shoulders and the like, and sometimes even damages these joints.

In the conventional technique, a member such as titanium is used for the shaft itself of the ski pole, the white body of the shaft is made to have a flexure, and the warp of the shaft is used to buffer the shock. An impact is applied to the pole in a straight line from the snow surface in the longitudinal center of the shaft, and not impacted in the lateral direction of the shaft like a golf club (the above 0002).

Therefore, when the ski pole is struck on the most important snow surface, the shock received by the skier's wrist, which is transmitted in a straight line in the longitudinal direction of the shaft holding the grip of the ski pole, is caused by the bending or bending of the shaft. The effect of cushioning shock is extremely small.

A cylinder 18 and a piston 1 having a built-in spring 20 which is based on the technique known in the general technical field shown in FIG. 12 of Japanese Patent Publication No. 55-13745.
The shock absorber mechanism 21 consisting of 9 buffers the shock gently, so the skier must perform the pole work swiftly and violently, and the shock shock is requested at the moment when the ski pole hits the snow surface. It cannot be applied to ski poles for Alpine skis.

Further, the above-described ski pole shown in FIG. 12 is extremely complicated in structure, becomes high in cost and heavy in weight, which is a decisive drawback as a ski pole which performs pole work violently.

The ski pole developed by the technique disclosed in Japanese Patent Application No. 5-56999 has been developed to absorb shocks. The ski pole is attached from the upper end surface of the grip to the hand skin (strap) mounting portion and the cushioning material inserted. And is screwed to the inner plug (shaft head) of the upper end of the shaft with a screw (said 0004).

In other words, the inner plug (shaft head) fitted to the upper end of the shaft, the cushioning material, and the grip upper end are fixed by screws. Therefore, the cushioning material interposed between the inner plug (shaft head) and the upper end of the grip loses elasticity.

Therefore, it does not have the effect of buffering the most important impact transmitted in a straight line in the longitudinal center of the shaft from the tip of the shaft generated when the skier hits the ski pole on the snow surface.

Similarly, it is presumed that the technique disclosed in the above-mentioned Japanese Patent Application No. 5-56999 sufficiently cushions the shock received from the lateral direction of the shaft by the cushioning material inserted in the inner space of the grip. As described above, the impact that a skier receives on a ski pole during normal skiing is instantaneously transmitted from the tip of the shaft to a straight line in the longitudinal center of the shaft, which impacts the skier's wrist that holds the grip of the ski pole. Therefore, it is not important to absorb the shock applied in the lateral direction of the shaft.

Further, considering the above structure, since the shaft is supported by the cushioning material inserted in the inner space of the grip, a lateral shake occurs on the shaft, and a skier who performs pole work violently runs. In the air, the tip of the shaft was swung out from the snow surface, and stress was felt by detecting unnecessary lateral shake of the shaft.

In the present invention, mainly in alpine skiing, the shock received by the skier's wrist or the like transmitted linearly at the longitudinal center of the shaft at the moment when the skier thrusts the ski pole onto the snow-compacted surface of the slope is efficiently buffered instantaneously. The purpose of the present invention is to provide a shock absorber that reduces the fatigue of skiers' wrists, elbows, shoulders, etc., or prevent damage to these joints. It is an object of the present invention to provide a ski pole equipped with a shock absorbing device without changing the conventional standard shape of straight & taper so that the basic technology can be inherited.

[0016]

In order to achieve the above object, the ski pole of the present invention uses a straight and taper shaft 1 having a standard shape, which is a conventional basic technique, and a sleep 5 is attached to a grip 4. In the structure in which the shaft 1 is mounted on the grip 4 and is vertically slidable with respect to each other,

Between the stopper 2 fixed to the shaft 1 shown in FIG. 1 (claim 1) and the grip 4, an elastic cushioning material 3 such as rubber, synthetic resin, spring or air bag is provided.
The grip 4 is moved according to the compression of the elastic cushioning material 3 to cushion the shock.

Similarly, the elastic cushioning material 3a shown in FIG. 2 (claim 2) is installed between the cover 9 and the shaft head 7a.

Alternatively, the elastic cushioning material 3b shown in FIG. 3 (claim 3) is fitted and installed between the cover 9 and the upper end portion of the shaft 1 at the upper end portion of the shaft 1 and is the elastic cushioning material. The grip 4 moves according to the compression of 3 or 3a or 3b to instantaneously and efficiently buffer the shock.

1 and 2 and 3, the grip 4 is slidable with respect to the shaft 1 by mounting the sleeve 5, so that the grip 4 is different in shape and texture. The most useful feature is that the sleeve 5 can be easily attached to a variety of conventional grips that meet various needs of the present invention, and the grip 4 of the present invention can be easily manufactured. And

4, 5 and 6, which will be described below, the sleeve 5 described above is expanded to form a grip 4a, and the shaft 1 is loaded and slidable relative to the shaft 1. The grip 4a is made of a hard material in order to slide efficiently, whereas the grip 4a is made of a two-layer structure in which the entire surface layer is covered with a soft material 6 for easy grip, that is,

In the ski pole shown in FIG. 4 (claim 4) having a shock absorbing device in the grip 4a, the shaft 1 is mounted in the grip 4a so that the grip 4a is slidable in the vertical direction. In a structure in which the entire surface layer is covered with a soft material 6 and fixed, rubber or synthetic resin, or an elastic cushioning material 3 such as a spring or an air bag is installed between the stopper 2 fixed to the shaft 1 and the grip 4a. According to the compression of the elastic cushioning material 3, the grip 4a
Moved to cushion the shock.

Similarly, the elastic cushioning material 3a shown in FIG. 5 (claim 5) is installed between the cover 9 and the shaft head 7a so that the grip 4a moves.

Alternatively, the elastic cushioning material 3b shown in FIG. 6 (claim 6) is fitted and installed between the cover 9 and the upper end portion of the shaft 1 at the upper end portion of the shaft 1, and the elastic cushioning material is provided. The grip 4a moves according to the compression of 3 or 3a or 3b to buffer the shock.

In order to make it easier to slide, the grips made of the materials shown in FIGS. 4, 5, and 6 described above are made of hard material, so that a more robust ski pole can be obtained. For example, for alpine competitions. Has characteristics suitable for.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. 1, 2, 3, and 7. The shaft 1 inherits the standard shape of straight & taper made of aluminum alloy etc. which is the basic technology of the past. The grip 4 and the stopper 2 are mounted in a straight cylindrical shape and the lower part is a hollow tapered shape. Then, the grip 4 is loaded and installed.

FIG. 1 shows a structure in which a sleeve 5 is attached to and fixed to a grip 4, and the grip 4 is slidable with respect to the shaft 1 in the vertical direction. An elastic cushioning material 3 made of rubber or synthetic resin is installed between the four, and the grip 4 moves according to the compression of the elastic cushioning material 3 to cushion the shock. Here, the elastic cushioning material 3 of FIG. 1 is made of rubber or synthetic resin having a substantially donut shape, and
To be installed.

The shaft head 7 is fitted on the shaft 1,
The upper end of the adjustment nut 8 is used as a screw to prevent the slidable grip 4 from coming off from the shaft 1 and the adjustment nut 8 is inserted through the washer 12 to provide the elastic cushioning material 3.
You can now adjust the elasticity of.

A substantially pan-bottomed cover 9 is detachably attached to the upper end surface of the grip 4 by a plurality of setscrews 10, and a strap 14 is covered by a strap set screw 13.
A space in which the grip 4 moves in accordance with the compression of the elastic cushioning material 3 is provided between the shaft head 7 and the inner surface of the cover 9.

With reference to FIG. 7 (claim 1), the moment when the skier cushions the shock generated when the ski pole hits the snow surface in FIG. 1 of the present invention is clearly illustrated. That is, the moment when the shaft 1 receives an impact, the elastic cushioning material 3 compresses, and the grips 4 which are fitted with the sleeve 5 and are slidable relative to the shaft 1 move to cushion the impact. Also, at the moment of compression, the tip of the ski pole is lifted up from the snow surface, and immediately returns to the state of FIG. 1 due to the repulsive force of the elastic cushioning material, but the elastic cushioning material moves to the grip side and the stopper side. Since the shafts are installed in pressure contact with each other in advance, the shaft will not be undesirably laterally shaken in the vertical and horizontal directions.

FIG. 2 shows the second embodiment of the present invention.
Describing with reference to (claim 2), FIG. 2 is an example of arrangement of members according to the present invention, which is arranged linearly of the shaft 1, as compared with FIG. 1 and FIG. 7 (claim 1) described above. Since the positions are changed, only the essential parts will be described.

In the structure in which the sleeve 5 is attached and fixed to the grip 4 so that the grip 4 can slide relative to the shaft 1 in the vertical direction, the cover 9 screwed to the upper end surface of the grip 4 and the shaft. An elastic cushioning material 3a made of rubber or synthetic resin is installed between the shaft heads 7a fitted to the upper end of the grip 1, and the grip 4 is moved according to the compression of the elastic cushioning material 3a to cushion the shock. I came to do it. The shaft head 7a and the washer 12a may be integrally formed, but the shaft 1 is separated from the grip 4 and screwed with a hexagon socket bolt 15 so as to facilitate the pulling out and pulling the shaft 1 downward. did.

The elastic cushioning material 3a has an ellipsoidal shape made of rubber or synthetic resin, and is installed between the cover 9 made of aluminum alloy and the washer 12a and the shaft head 7a which is united.

FIG. 3 shows the third embodiment of the present invention.
Referring to (Claim 3), FIG. 3 is compared with FIG. 2 (Claim 2) described above, and the shaft head 7 of FIG.
Since the elastic cushioning material 3a shown in FIG. 2 is combined into the elastic cushioning material 3b shown in FIG. 3 like the a and the washer 12a, only the essential portions will be described.

In a ski pole having a shock absorbing device in the grip 4, a sleeve 5 is attached and fixed to the grip 4, and the grip 4 is slidable with respect to the shaft 1. 4 is fitted on the upper end of the shaft 1 between the cover 9 screwed to the upper end surface of the shaft 4 and the upper end of the shaft 1, and an elastic cushioning member 3b made of rubber or synthetic resin is installed to adjust the elasticity. The grip 4 is moved according to the compression of the cushioning material 3b to cushion the shock. A washer 12b is provided to protect the elastic cushioning material 3b from the contact with the upper end surface of the shaft 1.

The embodiments of FIGS. 4, 5 and 6 will be described, but as described in the following paragraph (0021), the sleeve 5 is expanded to form the grip 4a, and the shaft 1 is loaded. The grip 4a is slidable with respect to the shaft 1 and can be slid efficiently, so it is made of a hard material. On the other hand, the surface of the grip 4a is easy for the skier to grasp and has a good feel. The entire structure was covered with a soft material 6 and fixed to form a two-layer structure, and further, it was made slidable, and the grip core material was a hard material, so a more robust ski pole could be obtained. The details will be described in the examples in the next section.

Next, the explanation of the present invention shown in FIG. 8 will be explained. FIG. 8 is well suited to FIG. 2, FIG. 3, FIG. 5, or FIG. 6 described above. The stopper 2a is fixed to the shaft 1, the split ring 16 is connected to the stopper 2a with a string 17, and fresh snow is used. If the shock absorber is not required, the shock absorbing function is stopped by installing the split ring 16 between the stopper 2a and the grip 4, and the split ring 16 is moved to the position of 16a so as to have the shock absorbing function. Is also usable and is illustrated as an application example of the present invention.

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of FIGS. 1, 2 and 3 will be further described. As described above, the shaft 1 has a conventional standard straight & taper shape, and the material thereof is aluminum alloy JIS 7001 or 7075. According to the present invention, since the shock is absorbed by the movement of the grip and the function of the elastic cushioning material, the bending or warping of the shaft is not necessary, and an expensive high-grade member such as carbon fiber or titanium (CF-TDR) is used. No need.

Sleeve 5 and shaft heads 7 and 7a
The cover 9 and the cover 9 are made of aluminum alloy die cast JIS ADC 12 which is easy to process and is lightweight, and the sleeve 5 has its inner surface precision-processed so that it can easily slide on the shaft 1. When the shaft heads 7 and 7a are fitted to the upper end portion of the shaft, they can be fitted easily by cooling and fitting them at room temperature, and can be fixed. Further, if a robust fitting is desired, it is possible to form a still safer structure by integrally drilling holes through which the pins are inserted after the fitting and by parallelly inserting a parallel pin or a spring pin into the shaft so as to be detachable.

The stopper 2 and the grip 4 are made of synthetic resin inheriting the conventional technique, and vinyl chloride, urethane (Mitsubishi Kasei) or the like can be used. A wide variety of synthetic resins have been developed in recent years, and a material in which cork (CORK) is blended with a synthetic resin has been developed to improve the grip of skiers. It can be attached to the material and suits the various needs of skiers. That is, the synthetic resin grips can be easily fixed to each other by heating them with hot water or the like to soften them, and then, after mounting the sleeve 5, at room temperature.

Rubber or synthetic resin can be used for the elastic cushioning materials 3 and 3a, 3b. As for the rubber, synthetic rubber, acrylonitrile-based cold resistant 1192-70 (Mitsubishi Cable Industries), and synthetic resin are the above. An elastomer (ELASTOMER) material (Nippon Synthetic Rubber) equivalent to the elasticity of rubber can be used.
Both have long-lasting elasticity and excellent cold resistance.

The upper end of the grip 4 has a substantially quadrangular recess, and the washers 12, 12a, 12b are also installed in the recess of the upper end of the grip 4 with an appropriate gap as a substantially quadrangular shape. It is used as a detent for 1. Since the shaft has a circular cross section in a plan view, it is not necessary to prevent the shaft from rotating, but a shaft stopper is provided to prevent the elastic cushioning material in contact with the shaft from being damaged.

The embodiments of FIGS. 4, 5, and 6 will be further described. As the shaft 1, the straight & tapered aluminum alloy JIS 7001 or 7075 can be used as in the above description. In the following, the points common to the previous section will be omitted and only the essential parts will be described.

The grip 4a has a two-layer structure in which the entire surface layer is covered and fixed with a soft material 6 using aluminum alloy die casting JIS, ADC12 similar to the sleeve described above. The soft material referred to here is a synthetic rubber acronitrile-based cold resistant material. Of 1
194-90 (Mitsubishi Cable Industries) or an elastomer (ELASTOMER) material having elasticity equivalent to this can be used. The soft material 6 is formed in the same shape as the grip 4a, mounted through the opening at the lower end and fixed by an adhesive.

The cover 9 is made of aluminum alloy die casting JIS ADC 12 similar to the grip 4a, and is gripped with a plurality of bolts 11 in advance.
It is screwed onto the upper end surface of a. As a result, the grip 4a and the cover 9 can be integrated to form a structure in which the entire grip is more robust. Note that the grip 4a can be cast as a hollow at an appropriate place for further weight reduction.

[0046]

Since the present invention is configured as described above, the following effects can be obtained.

Each skier has his or her skill, the condition of the snow surface,
The ski pole is used differently each time the skier slides in various ways depending on the slope of the gliding surface and changes in speed.However, the ski pole of the present invention can be used by the skier at any angle during normal skiing against the snow surface. The shock transmitted to the front of the snow surface when the ski pole is struck is reliably and instantaneously buffered efficiently.

In addition, skiers aiming for advanced skiing skills repeatedly perform parallel turns in which they make small turns in succession and practice Wadern repeatedly. These small turns rotate in accordance with their rhythms. In particular, Wadern cannot improve his skiing skills unless he gets into the rhythm. In the ski pole of the present invention, when the shock is buffered by the compression of the elastic cushioning material, a repulsive force is generated in the elastic cushioning material itself at the next moment (said 0030).

In other words, in other words, the skier senses the repulsive force transmitted to his / her grip on his / her wrist at the next moment when the skier absorbs the impact generated when he hits the ski pole on the snow-covered surface. Positively, quickly,
It becomes easier to pull up the ski pole from the snow surface and start the next rotation operation, it will prevent delay of pole work and it will be easier to learn the rhythm of advanced ski technology such as Wedern. Compared with practicing using a pole, the ski pole of the present invention works effectively in learning advanced skiing skills in a short time.

As described above, the ski pole of the present invention cushions the shock received by the skier to reduce the fatigue or damage to the wrist, elbow, shoulder, etc., and not only a cane but also a wedern or the like. A ski tool that makes an important contribution to mastering advanced skiing skills. In addition, the ski pole of the present invention is characterized in that it has an extremely simple structure to absorb shocks, and that the excellent conventional technology succeeds to this to reduce the cost and to provide a safe structure.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional side view of a main part of a ski pole showing a first embodiment.

FIG. 2 is a vertical cross-sectional side view of a main part of a ski pole showing a second embodiment.

FIG. 3 is a vertical sectional side view of a main part of a ski pole showing a third embodiment.

FIG. 4 is a vertical sectional side view of a main part of a ski pole showing a fourth embodiment.

FIG. 5 is a vertical cross-sectional side view of a main part of a ski pole showing a fifth embodiment.

FIG. 6 is a vertical sectional side view of a main part of a ski pole according to a sixth embodiment.

FIG. 7 is an explanatory view of a vertical side surface of FIG.

FIG. 8 is an explanatory view of a vertical side surface showing an application example of FIG.

FIG. 9 is a cross-sectional view taken along the line AA of FIGS. 1, 2, and 3.

10 is a cross-sectional view taken along the line BB of FIGS. 4, 5, and 6. FIG.

FIG. 11 is an explanatory diagram showing the entire ski pole on the side surface of FIGS. 1 and 7;

FIG. 12 is an explanatory view of a vertical side surface showing a main part of a conventional ski pole.

[Explanation of symbols]

 1.1a Shaft 2.2a Stopper 3.3a, 3b Elastic cushioning material 4.4a Grip 5. Sleeve 6. Soft material 9. cover

Claims (6)

[Claims] 1. In a ski pole having a shock absorbing device on the grip (4), a sleeve (5) is attached and fixed to the grip (4), and a shaft (1) is loaded on the grip (4). In the structure in which the vertical direction is slidable with respect to each other, between the stopper (2) fixed to the shaft (1) and the grip (4), rubber or synthetic resin, or an elastic cushioning material such as a spring or an air bag ( A ski pole, wherein 3) is installed and the grip (4) moves according to the compression of the elastic cushioning material (3) to cushion the shock. 2. A rubber, a synthetic resin, a spring, or air between a cover (9) screwed to the upper end surface of the grip (4) and a shaft head (7a) fitted to the upper end portion of the shaft (1). The ski according to claim 1, wherein an elastic cushioning material (3a) such as a bag is installed, and the grip (4) moves according to the compression of the elastic cushioning material (3a) to cushion the shock. Pole. 3. The cover (9) screwed to the upper end surface of the grip (4) and the upper end portion of the shaft (1) are fitted to the upper end portion of the shaft (1) and are made of rubber or synthetic resin. An elastic cushioning material (3b) such as a spring or an air bag is installed, and the grip (4) moves according to the compression of the elastic cushioning material (3b) to cushion the shock. Ski pole described in 1. 4. A ski pole having a shock absorbing device on a grip (4a), wherein a shaft (1) is mounted on the grip (4a) so that the grip can be slidable in the vertical direction. In a structure in which the entire surface layer of (1) is covered with a soft material (6) and fixed, a rubber or synthetic resin or a spring, an air bag or the like elastic cushion is provided between the stopper (2) fixed to the shaft (1) and the grip (4a). A ski pole, in which a material (3) is installed and the grip (4a) moves according to the compression of the elastic cushioning material (3) to cushion the impact. 5. Rubber, synthetic resin, spring, or air between a cover (9) screwed to the upper end surface of the grip (4a) and a shaft head (7a) fitted to the upper end portion of the shaft (1). 5. The ski according to claim 4, wherein an elastic cushioning material (3a) such as a bag is installed, and the grip (4a) moves according to the compression of the elastic cushioning material (3a) to cushion the shock. Pole. 6. A rubber or synthetic resin which is fitted to the upper end of the shaft (1) between the cover (9) screwed to the upper end surface of the grip (4a) and the upper end of the shaft (1). The elastic cushioning material (3b) such as a spring or an air bag is installed, and the grip (4a) moves according to the compression of the elastic cushioning material (3b) to cushion the shock. Ski pole.