JPH0710295B2 - Ski stock with a conical reciprocating buffer mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski stock, which is one of ski equipment, and particularly to improve adaptability to all types of snow and improve skiing, gliding, that is, alpine and nordec technology, and to improve safety probability. Regarding high ski stock.

[0002]

2. Description of the Related Art Current ski equipment has made great strides in its excellent functions and performances such as skis, bindings, ski shoes, and clothing. However, as far as the ski stock alone is changed, the basic principle has not changed since the days of the bamboo stock. I still have the high-end bamboo stock of Nanjing Bamboo about 35 years ago, but if I change the tip ring to a small and light one like now, its lightness, balance, and usability are the same. It is as good as that. For example, there are countless sports shoes such as tennis, marathon, short distance, caravan, mountaineering, soccer, volleyball, basketball, town shoes. If you walk 10km through the town with the town shoes and ordinary leather shoes, you can also experience how buffering is important for the healthy protection of the human body.

Ski poles have changed from a single pole to a two-handed pole. Beginning with bamboo such as Nanjing Bamboo and Go bamboo, after that, with the development technology of various materials, strength,
We are currently in the pursuit of higher quality such as durability, light weight, balance, and design. However, the basic principle, structure, and function have not changed in the history of ski 100 years. If you look at the slow videos of Noldeck's gliding and Alpine downhill skiing, the impact at the time of poking is serious when you are a beginner as well as an intermediate or advanced stage. Looking at the screen, the shoulders are pushed up.

Looking at the prior art relating to ski poles in various countries, there are mere upper and lower shock absorbers, which are disclosed in Japanese Patent Publication Nos. 53-128430, 52-147131, German Patent 2055597, and Swedish Patent 132429.
There are US Pat. Therefore, although some applications have been seen for nearly 10 years, the reality is that they have not been produced or sold as commercial products until now.

[0005]

DISCLOSURE OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION
In the above prior art, such as 28430, the grip of the ski pole is a cushion only up and down. But spring 1
It has a complicated air cushion structure with individual cylinders, pistons and O-rings. However, it is 0.30mm until it pokes through the tip ring of the ski pole and returns.
It is estimated that it takes about 1 second or more to recover because the following air holes are exhaled and inhaled. Although I am talking about protecting the human body with loose up and down movement, such as wedern downhill of advanced level, poking out, poking again, poking the same hand stock if there are obstacles etc. Due to the problem of a few hundredths of a second, a slow air cushion return such as the one mentioned above will cause the player to poke without returning completely, which may result in an uncomfortable feeling when struck, a large number of complicated structural parts, and durability. , Do not consider strength, weight, balance.

In addition, depending on the quality of snow, the return operation of the stock may be difficult to slip out due to solid snow, and the stock may not stick when the snow surface is hard. Therefore, the balance may be lost and each part of the human body may be damaged. Over a long period of time, it causes fatigue and sometimes injuries due to falls. From beginners to the highest level, it is said that skiers' strength and skill are to overcome them.

Therefore, all of the conventional techniques have problems in strength, durability, safety, light weight, balance, simplicity of mechanism, and performance, which are most important as stock. In addition, each of the above-mentioned applications suffers from a number of serious drawbacks in view of various conditions such as a small number of parts, ease of production process, and low cost.

Ski stocks have to be able to cope with all kinds of heavy exercises and various snow qualities during use, regardless of whether the ski is downhill or downhill. That is, the important conditions for ski stocks as practical products are listed below.
(1) Light weight. (2) Good balance. (3) Strength and durability. (4) Things that can be done by a sports equipment store or an experienced person by simple adjustment of the stock length. (5) As little impact as possible on the snow surface, thereby protecting each part of the human body and reducing fatigue over the short and long term. (6) 1
To be able to quickly return and remove stock from the snow surface to compete for a few seconds in 00 minutes. (7) The degree of incision in the shaft tip ring part on ice burn should be high.
(8) Stocks are often taken from heavy snow, heavy snow, etc., but that phenomenon should be reduced as much as possible. (9) The repulsive force of the buffer spring works effectively as a propulsive force to improve the time, regardless of whether the vehicle is skiing or gliding. (10) It can be manufactured according to the purpose of skiing, gliding such as alpine and nordec, and technical level. (11) Establishing safety to prevent danger in the event of a fall or collision is as high as possible.

The above items (1) to (4) are filled with the existing stock. However, (5) to (11) are supplemented by the skier's downhill technology, and are not yet provided in the mechanism of the ski pole itself.

It is a first object of the present invention to provide a ski pole which has a shaft of the ski pole which is crushed to provide reciprocating motion up and down. A second object of the present invention is to provide a ski pole having a cushioning function in the grip portion of the ski pole. A third object of the present invention is to provide a ski pole as a practical product immediately by simplifying the manufacturing technique, simplifying the production process, and reducing the production cost. The fourth object of the present invention is to provide the above (1).
It is possible to deal with 11 items from (11) to (11) to a certain degree with a high degree, the structure is simplified, the number of parts and the weight are minimized,
The objective is to provide ski skis as a practical product immediately, with the production process and production cost set at the same level as the current high-end products.

[0011]

The contents of the ski pole of the present invention will be described below with reference to the drawings. The shape of the three-dimensional positive cam 4 is slightly changed in a small internal space called the palm grip 1 provided on the top of the ski pole, and the follower joint bolt pin 11 is used as a cam mechanism. This cam mechanism gives the shaft head 7 a reciprocating motion in the shape of a cone.
As a result, the above movement is transmitted to the thin and weak pipe shaft 6, and the strength and durability of the pipe head 6 and the follower bolt pin 11 are made the same as those of the conventional product. At the same time, the shaft head is able to hold the multi-stage cushioning cushion in a stable manner, fully exerting its cushioning function while maintaining strength and durability, and the tip ring portion is movable left and right.

The contents of the above-mentioned prior art and the convolution of the present invention, the upper and lower reciprocating multi-stage shock absorbers are physical elements, mechanical elements, and their movements are of different forms, and the technical purpose thereof is merely to protect human body from danger. Unlike the ones, it also has the purpose of improving skiing skills.

[0013]

(1) As for the lightness, the stock of the present invention has four parts (rubber-like cushion 8, long compression coil spring 9, short compression coil spring 10, driven node bolt pin 1) as compared with the conventional stock.
1) It is heavy because of the large amount. However, each of them is several g, and although the shaft head 7 and the grip portion 1 are a little large, the total weight of each member is about 20 to 10 g, which does not impair the lightness.

(2) As for the balance, since the above-mentioned excess weight is all in the grip portion, when the stock is ideally weighted, the tip feels lighter when it is swung forward and the balance is rather improved.

(3) As for strength and durability, the grip portion 1 such as the pipe shaft holding portion 3, the groove of the three-dimensional positive movement cam 4 and the hollow portion 5 is used.
And the members of the shaft head 7 and the follower joint bolt pin 11 are retained. Just like the principle of Japanese sword,
The palm grip portion 1 serves as a handle, the follower bolt pin 11 serves as a bamboo eye nail, and the combination of the shaft head 7 and the pipe shaft 6 is the blade portion. The relationship in which the force works is exactly the same mechanically. A cam mechanism is used in addition to this, looseness of the follower bolt pin 11 and twisting and strength of the thin and weak pipe shaft 6 are a concern.
Tighten tightly until it stops at the large head of diameter 1, shaft head 7 is a resin-based upper pipe shaft 6 of viscous material.
It fits tightly inside, and it also plays the role of a nut, maintaining its strength and looseness.

When the rubber-like cushion 8 inserted and fixed in the upper hole of the shaft head 7 is on the ceiling of the hollow portion 5 under the maximum pressure load that cannot be compressed any more when it is pushed to the maximum extent, the long compression coil spring 9, The short compression coil spring 10 has a space that does not reach the maximum compression. This is adjusted by the length of the protrusion of the shaft head 7. Further, the head of the follower bolt pin 11 is also made to have a groove length that does not attach to the upper ceiling of the cam groove at that time.

The reason for this design is that when the maximum pressure load is applied to the tip of the pipe shaft 6, the shaft head 7, the rubber-like cushion 8 and the palm grip portion 1 are transmitted from the shaft.
It is received by the ceiling of the hollow part 5. Therefore, the long compression coil spring 9,
This is to protect the short compression coil spring 10 and the follower bolt bolt pin 11 and improve durability. This is exactly the same as conventional ski poles, and its strength and durability are proven.

(4) The length is adjusted by disassembling it in the opposite process of assembling and cutting the pipe shaft 6 to a length suitable for the user. With the simple jig shown in FIG. 7, the screw hole 18 for the follower joint bolt pin 11 that fits the shaft head 7
Then, the pipe shaft 6 is attached to the jig, a hole is opened, and the pipe shaft 6 is reassembled. The jigs will be distributed to the sports equipment stores that sell them in advance.

(5) The impact problem is that when not in use, the long ski coil spring 9 always presses and fixes the follower joint bolt pin 11 to the lowermost end of the three-dimensional positive cam 4 via the shaft head 7. Has been resolved. If you hit it on the snow surface, the long spring will come loose first and the short spring will work together. Furthermore, the rubber cushion 8
And the three work together strongly to obtain a three-stage buffer. When pulling out, it first returns with a strong instantaneous repulsive force, and loosely returns with a spring action opposite to the above. In the case of the grip portion 1a described in the examples below,
Furthermore, one-stage or two-stage buffers are overlapped to obtain more multi-stage, heavy and complex buffering property.

It is difficult for the above-mentioned multi-step spring action to give an accurate measurement value for protecting the human body, but it is assumed that a senior person of ordinary adult men's skiing will have a slope of 28 degrees, a speed of about 30 km / h, and a Wedern downhill. In the room, the impact sensor was attached to the shoulder joint, and it was struck on the cedar board and measured. Conventional products average about 2.5
Before and after G, the present invention described in Example 1 described later recorded an average of about 1.5G. As a reference, the impact on the knee joints of a marathon athlete is 6.5 G, and when the same athlete is a bicycle, it is only 0.6 G at 20 km / h.

In this multistage buffer mechanism, as soon as it enters from the software, it returns to the hardware, and when it returns, it instantly returns from the hardware to the software. When the poking time is not the moment and is long for 1 second or more or weak, it acts in the intermediate zone while maintaining the cushioning property. Generally speaking, the beginners are in the soft stage, the intermediate are intermediate, and the advanced are often full buffer.

The ski stock designed with the spring of the cushioning material, which is suitable for the standard specifications, can sufficiently cope with the protection of the joints, muscles and nerves of various parts of the human body, the accumulation of fatigue, each technical level and the like.

(6) It is very important that the stock litter from the snow surface is as fast as possible when the tip ring part is struck, which is a very important factor when it comes to advanced ski slopes and ski slopes. It is a competition. Above (5)
The strong instantaneous repulsive force of the triple spring, which is seen in the latter half of the buffering action of, is a decisive help.

(7) The reciprocating motion of conical rotation of the pipe shaft 6 plays a role in the degree of cutting at the shaft end of the ice burner. When skiing an Alpine downhill ski, the left hand turns left, when the right hand swivels right, and when the Nordeck ski skis, turn it backwards. This is a method of providing the direction of inclination of the cam groove described in the fluid element of the three-dimensional positive cam 4 described later in Example 3, and the left and right rotation directions when the cam is struck are determined.

As is well known, when skiing downhill, the left hand is the left hand stock, and the right hand is the right hand stock. This means that the stock on the descending side, that is, the valley side is always used. In this case, the tip of the pierced stock must rotate either left or right, and it will rotate not up the bottom of the slope on the valley side but in the up direction of the mountain side. As a physical property, rotation proceeds in the rotation direction, and resistance occurs in the opposite direction. The tip of the stock rotates in the upward direction on the mountain side, and resistance occurs in the downward direction on the valley side. Therefore, along with the punching power, the hardness of the hard ice barn and the good stab quality increase. The goodness of slipping out of heavy snow, solid snow, etc. is that the ring 21 at the tip of the shaft does not move in the snow because it is movable, and only the central pipe shaft rotates in the opposite direction when the pipe shaft instantly strikes and pulls out. This is the same as a hand-turned cone for woodworking. Physically, the reverse rotation reduces the resistance of the substance, and the reverse rotation of the back and forth,
Although it is a little bit of the moment, it also has the effect of increasing the water content and adding a slipping element to improve drainage. The reason why the above-mentioned reverse rotation is applied to the gliding Nordeck is to make it easier for the wrist to turn inward when it is struck, so that the force is increased and the propulsive force is increased.

(8) Similar to the above (7), the tip ring 21 does not move in the snow because the tip ring 21 is movable, and the pipe shaft 6 does not move without sticking out from heavy snow or heavy snow. The reciprocating motion of the tip tucking and rotating plays a role.

(9) The repulsive force of the shock-absorbing spring acts as a propulsive force. The reason is that the part of the return motion after the shock-absorbing mechanism has struck as described in the above-mentioned problem of impact (5) has a natural shape. It helps. Of particular importance is that the strongest repulsive force occurs in the three-stage compound at the beginning of the return. All competitive skis,
Thousands of times and the force of the thrust arm and stock is one-third of the driving force
It will lead to a great improvement in the time required for the Nordeck's occupancy.

(10) As for the production corresponding to the use and the technical level, what is shown and described in the drawings is a standard specification design for downsizing of an alpine. The reason for the use, for example, for sliding a Nordeck, was described in (7) above. The left hand rotates to the right, the right hand reverses to the left, and the angle of the cam 4 is reduced,
The groove is long and the spring is strong. Even in the downhill, the springs are naturally stronger for professionals, superlatives, and racers. Broadly,
Both downhill and downhill are standard for general use, advanced use, beginner use, children use, etc. A beginner or a child can select vertical movement by setting the angle of the three-dimensional confirmation cam 4 to 0 degree. If you want to be extremely lightweight, do as shown in Fig. 3.

(11) As for the danger prevention, the problem of safety establishment when the tip of the stock sticks at the time of tipping over, collision, etc. It can be said that the cushioning effect is even more secure than the conventional product.

In general, the more expensive high-priced products on the market are lighter and more well-balanced due to the difference in materials. Not to mention beginners and intermediates, but especially at advanced levels, they become important factors. When I buy stock, I often see it holding in my hand and swinging forward, but I do not feel too heavy at hand,
The tip is even lighter, and it is said that it is good to be able to swing out to the person with a "soo" feeling. This is because more than two-thirds of the total weight is concentrated at hand and the shaft material is strong and light.

The weight difference between the prototype and the conventional product was about 12 g for one slide and about 18 g for the slide. However, in the prototype, the weight gain is concentrated at hand, so the balance is rather good.

The toughness and durability were tested on a wide range of levels from beginner to advanced seasons. Approximately 60 days, including how to slap that is considered benign to advanced users, and about 4 hours
Let it run for 80 hours. This is a person who loves skiing, which means that he has used it for about 6 to 8 seasons when converted to the normal average. There was no problem because the cam groove was shining smoothly with the scraping of the bolt pin 11. During that time, the number of reciprocations of the follower bolt bolt 11 reaches about 20,000 times or more.

The most worrisome point is the follower bolt pin 1
1 is the pressure load and the torsional strength of the shaft at the base of mounting the pipe shaft 6 of FIG. Despite the thin pipe, the shaft head 7 was tightly filled inside, so there was no problem with the conventional pipe shaft.

Finally, a destructive test was performed. Even if the middle of the shaft was broken, there was no damage to the structure or function of the grip. As mentioned above, this is due to the strength of the mechanical structure of a Japanese sword that also uses a cam mechanism, and from the shaft to the shaft head 7.
This is because of the structure and mechanism in which the maximum pressure load is applied to the rubber-like cushion 8 and the ceiling of the hollow portion 5 via the.

The performance and effect during use will be described. Stock operations by beginners are always slow and slow,
In particular, the action of pulling it back from the snow surface is ambiguous. There are many operations to drag the tip of the stock onto the snow surface, and it is said that the skill of the stock work can be understood by looking at the stock work. When observed by the beginners, the difference from the conventional product is that there is little shock when piercing. When pulling back from the snow surface, the repulsion of the return of the multi-stage spring that is strong first and fast and then weaker naturally pushes up the hand without dragging the snow surface. As a result, you will naturally teach important return operations. It also reduces the loss of balance. At the same time, the tempo to move to the next action became faster.

Although most beginners dislike stock operations,
On the contrary, the fun to use was amplified. Intermediates feel the need for stock operation, but have not yet fully utilized the effects of stock for various rotation techniques such as Christiania, Wedern, and tail jump rotation. The trial results were better than those of the beginners, and in particular, the important element that the operation of pushing the stock and the timing of rotation were integrated was noticeable.

[0037] For advanced riders and above, downhill speed, slope,
Depending on the terrain and snow quality, etc., it is powerful and quick, and the stock is operated according to the situation to assist in rotation. However, the joints such as wrists, elbows, shoulders and stapes, the cervical spine above the spine, the thoracic spine and its nerves, etc. are considerably impacted.
At that time and in the long run, the causes of injuries and illnesses such as muscle aches, arthritis, bruising, bruising, flesh, sprains, and dislocation of various parts are created. This is covered with physical strength and technology that have been trained for many years.

The first impression of using this prototype is about 3 of the conventional products.
I only feel a shock less than about one-third. In addition, the return of the return was incomparable, and the good result was obtained. Even at times other than turning, it shows high techniques such as air turn and balance maintenance by often pushing both stocks on steep slopes on uneven terrain. It was found that all of them worked reliably and had the same high stability as the conventional products.

At the same time, the repulsive force of the triple spring obviously assists the propulsive force when competing for 1 / 100th of a second such as skiing on skiing or downhill skiing. It turns out that it will improve the time. In addition, the trial results of the Nordek for sliding were compared with the conventional products by dividing the total over 50 km several times. Approximately 20,000 times, the accumulated record for a long time of use clearly shows the combined effect of the repulsive force of the multi-stage buffer spring, the good sharpness of the hard ice with a conical mass, and the good shedding of heavy snow. ,
The same person made a difference of about 12 seconds at 10 km after several attempts (although there are physical conditions, etc.). Obviously, it will be an auxiliary effect of the driving force and will lead to the improvement of time.

In addition, reduction of fatigue and comprehensive protection of the human body in each part such as wrist, elbow and shoulder joints, cervical vertebra above the spine and thoracic vertebra are great. Both the downhill and the downhill on the paved road in the city just wear orthodox leather shoes and walking shoes 10
If you walk km, the result is the same as clear.

Next, the trial effect on the snow quality will be described. First of all, the quality of snow changes every moment depending on the weather, temperature, time, season, etc., but the snow quality for skis can be roughly divided into dry powder snow, powder snow, ordinary snow, and stepping on skis. Not fresh snow, ice burns, heavy, heavy snow, bad snow, and other things that are rarely seen on the slopes, but are roughly divided into sun crust and wind crust. There are three snows that skiers are happy with. You can ski like a ski The latter five bad snows are difficult to glide and require higher technology. In addition, there are many dangers of falling, leading to accidents. However, in fact, more than 60% of the whole period is the latter snow except for spring skis, and recently, except for skiing skis, it is pressed and hardened from the beginning with a caterpillar car to make the snow on the slopes last longer.

The conical reciprocating motion is due to bad snow such as the latter. The first point is the degree of cut at the tip of the ski stock on the ice burn. No matter if you hit the left or right, the tip rotation is always turning toward the higher side of the mountain side, so compared to the conventional product, the cut on the hard ice snow surface and the catching are clearly improved. As a result, the escape and slippage of the stock tip were reduced, the balance was lost, and falls were reduced.

In addition, any skier has experienced that heavy snow or heavy snow cannot be removed after hitting the stock and the stock can be caught on the snow surface. I understand the difficulty of slipping in bad snow and the cautions for accidents so that I am a veteran. I wonder why the tip of the stock to the ring, which is less than 10 cm from the stock, sometimes becomes difficult to pull out. If you carefully observe the conventional product during implementation, you will find that it is difficult to pull out the shaft when it is fixed.

The tip of the shaft of the present invention does not move in the snow because the ring is movable, and when only the pipe shaft is struck,
When pulling it out, the inside of the snow is agitated by the conical rotation. The kinetic energy of the rotation itself and the resulting increase in water content around the hole in the snow pushed the hand unconsciously by the spring action of the return, resulting in a triple effect, and good results were obtained. Most of the above-mentioned effects are great considering that the injuries caused by accidents are mostly caused by falls and are concentrated especially during heavy snowfall or heavy snowfall such as ice burn.

It is not possible to experience an accident in which a human body at the tip of the stock is stuck due to a collision, a fall, etc., so 30
I experimented with pork with a skin of about kg. I was worried because the shaft had a conical motion, but the rotation angle was 50.
The result is disappointing because it is small and around. After all, the effect of cushioning is clear, and if you gradually increase the strength with the same strength as the conventional product, the conventional product will stab at a stage above a certain force, and the prototype will only pull in the skin strongly. I was there. It was even stronger, and the prototype was stuck in it as it approached the limit that an ordinary adult man could put out. After all, sticking is a matter of strength and angle. The answer is that the risk prevention and safety establishment are much better than the conventional products.

Next, there will be described the problem of whether or not there is an obstacle in the function of performing a normal motion when snow is clogged in the groove of the stereoscopic positive movement cam 4. The experiment was carried out under conditions of night skiing in Hokkaido at 22 ° C below zero. The groove was artificially filled with snow and left outdoors for about 30 minutes. The snow was suddenly used for trial, and the experiment was repeated many times. The head of the follower bolt pin 11 strongly moved up and down with respect to the volume of the groove, and it smashed by being struck a few times, and there was no problem.

[0047]

EXAMPLE FIG. 1 is a cross-sectional view of the grip portion of this ski pole as seen from the side. However, since the three-dimensional positive cam 4 is oblique, the vertical cross section cannot be cut halfway from the center of the upper part. This is indicated by the cut section lines 12, 13, 14 in FIG. FIG. 2 is a perspective view from the vertical front, and the sectional line of FIG.
2, 13, and 14 are shown. FIG. 3 is a step view seen from the same position as FIG. 1 showing that the three-dimensional positive cam 4 can be provided on the grip portion 2.

Example 1 As shown in FIGS. 1, 2, and 3, the ski pole of the present invention has a grip portion 1,
The ring 2 attached to the pipe shaft 6, the ring attachment fitting 19 and the ring retainer fitting 20 shown in FIG.
1 and a tip ring portion including a tip stud 22. The palm grip portion 1 has an integral structure having a shape that fulfills the function of each element, and the grip portion 2, the pipe shaft holding portion 3, the three-dimensional positive cam 4 and the movable portion perform a conical movement and a vertical reciprocating motion to hold it. It consists of a hollow part 5. As shown in FIGS.
The rubber cushion 8 is inserted into the hole of the uppermost protrusion of the shaft head 7 of the pipe shaft 6, and the long compression coil spring 9 and the short compression coil spring 10 are fitted into the protrusion cylinder in this order. This is inserted into the hollow portion 5 of the palm grip 1 as shown in FIG. 6, and is inserted until it stops at the upper step in the palm grip 1.

Next, the groove of the three-dimensional positive cam 4 of the grip portion 1 and the screw hole 18 of the follower bolt pin 11 are aligned. From the smaller diameter of the follower joint bolt pin 11 having a diameter of three steps from the groove and having a thread in the central portion, screw in until it stops at the head with the larger diameter, and tighten. This completes the assembly of the ski pole. As the material of the grip portion 1, light metal, carbon fiber, ceramics or the like can be used. However, synthetic resin is generally used for integral molding.

Embodiment 2 In the second embodiment of the present invention, a composite structure in which two or more materials and members are combined is added to the integral structure of the palm gripping portion 1a in order to further enhance the multi-stage cushioning property. FIG. 4 shows the grip portion 1a of this embodiment. Grip part 1a
Is a cushioning material (rubber-like), and the outer grip 2
A head bolt hole 17 is formed at the uppermost portion of the second hollow portion 5B.

An internal cylinder 15 is incorporated in the palm grip portion 1a. The inner cylinder 15 is configured to have the pipe shaft holding portion 3, the three-dimensional positive cam 4, and the hollow portion 5, and is made of a hard material. A mold of the grip portion 1a is attached to the inner cylinder 15, and a cushioning material is poured and wrapped so as to be molded. Depending on the selection and combination thereof, both materials in this regard are one in which the palm grip portion 1a and the inner cylinder 15 are naturally adhered and one in which they are separated without wearing. The former comes in one type and the latter comes in two types: two-stage cushions. In the latter, the inner cylinder 15 is fixed with a bolt from the head bolt hole 17 at the top of the palm grip portion, and the palm grip portion 1 is also fitted with the palm grip portion fixing projection 16.
Hold a completely. This further increases the multi-step buffer.

Embodiment 3 In the two types of grip portions of the above-mentioned integrated structure and composite structure, the upper and lower side surfaces of the two grooves of the three-dimensional positive cam 4 are always at right angles to the cylinder of the hollow portion 5, and part 2 The two grooves are always provided at the same angle with respect to the hollow portion on opposite sides. A groove having a width such that the diameters of the circles of both heads of the follower bolt pin 11 can be moved, and the vertical bisectors 13 and 14 of the two grooves along the section line of FIG. 2 are perpendicular to the center line of the hollow portion 5. When connecting with a straight line, the straight line has the invariant property of passing through the center line of the hollow portion 5.

Each of the elements other than the above is a groove inclination angle of 0 ° to about 75 °, and the pipe shaft 6 rotates left and right for the left and right conical rotation when the protrusion is made, and the length of the groove is about 10 mm.
To 70 mm, and the position of the groove can be provided within the practical upper limit of the pipe shaft 6 and within the entire circumference of the grip portion.

Therefore, in addition to the above-mentioned invariant properties, in order to correspond to the purpose such as downhill, gliding, and the like, technical level, etc.,
The three-dimensional positive-moving cam 4 has a property of inevitably corresponding change from the necessity. As a result, the strength and quantity of the various cushions for cushioning, the shaft head 7, the pipe shaft holding portion 3, the driven joint bolt pin 11, the left and right movement of the tip ring 21, and the functions, sizes, and shapes thereof correspondingly change.

The changes in each of these elements and members are within the permissible limits of the practical range, and each function of skiing and gliding, the skill level of the user, and the optimum function and structure of a ski stock suitable for their purpose To address each of the 11 issues from (1) to (11) above.

As a prototype, two points were prepared, one for gliding and one for gliding. In order to obtain an accurate comparison with the conventional product, we bought the same conventional product for both sliding and sliding purposes, each with 2 points, 1 for which the palm grip was removed, and the tip ring was left free to rotate left and right. The pipe shaft 6 was used and other parts were newly made. The other point was used as it was for competitive comparison with the prototype. The prototype for downhill was manufactured as shown in Figure 1. The rotation angle of the pipe shaft 6 is about 5
0 degrees, the round trip length of the shock absorber is about 20 mm, the rotation angle for sliding is about 30 degrees, the round trip length of the shock absorber is about 30 mm, and the spring is made strong. In order to respond to different needs, we conducted a test to determine the strength of each of the five strengths, and selected the best from them.

[0057]

The effects of the above (1) to (1)
The effects up to 1) including the feeling of use and anxiety when snow becomes hard ice in the groove of the three-dimensional positive cam are described.
As the number of times the ski poles of the present invention have been used increases, the advanced skier feels that the skis have a shock and feels like they have not been used, and the evaluation is that the same effects as the conventional products are obtained without any discomfort. The work that changed and was able to return immediately after entering the software was well received.

Although it is simple and simple, it is a mechanism that can exert important elements and functions in a mutually related and assisting structure. Moreover, the number of parts, weight, production process, cost and balance are almost the same as the conventional products. Various effects such as improvement of technical level over a number of items, reduction of accumulation of protective fatigue of various parts of human body in short and long term, and enhancement of safety were brought out.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a grip portion of the present ski pole as viewed from the side.

FIG. 2 is a perspective view from the vertical front.

FIG. 3 is a step view seen from the same position as FIG. 1, showing that the three-dimensional positive cam 4 can be provided on the grip portion 2.

FIG. 4 is a sectional view of the palm grip portion 1a viewed from the same position as in FIG.

FIG. 5 is an assembly drawing of the ski stock.

FIG. 6 is also an assembly drawing of the ski stock.

FIG. 7 is a diagram showing a step of adjusting the length of the pipe shaft.

FIG. 8 is a diagram showing a movable state in which a ring at a tip portion is rotated to the left and right.

[Explanation of symbols]

 1 Palm gripping part (whole) 2 Grip part 3 Pipe shaft holding part 4 Solid confirmation cam 5 Hollow part 6 Pipe shaft 7 Shaft head 8 Rubber cushion 9 Long compression coil spring 10 Short compression coil spring 11 Follower joint bolt pin 12 Center cross section line 13 Cross-sectional line of diagonal solid positive-moving cam 4 14 Cross-sectional line of diagonal solid positive-moving cam 4 1a Palm gripping part 5B Second hollow part 15 Inner cylinder 16 Grip gripping part 1a fixing protrusion 17 Head bolt hole 18 Follower bolt bolt pin screw-in hole 19 Tip Ring mounting bracket 20 Ring pressing bracket 21 Tip ring 22 Tip tip fitting

Claims (5)

[Claims] 1. A grip portion (1), a pipe shaft (6),
In a ski pole composed of a tip ring (21), the palm gripping part (1) gives a gripping part (2), a pipe shaft holding part (3), and the pipe shaft (6) to be reciprocated by convoluting 2 Consisting of a groove of three three-dimensional positive cams (4) and a hollow part (5) for holding said movement, said pipe shaft (6) inserting and holding a shaft head (7) on its top, A rubber-like cushion (8) is inserted into the hole of the uppermost protrusion of the shaft head (7), and further has a long compression coil spring (9) and a short compression coil spring (10) which are fitted into the cylinder of the protrusion. Insert it until it stops at the top of the hollow part (5), and insert the three-dimensional positive cam (4).
And two driven groove bolt pins (11) which are rubbed into the pipe shaft (6) and transmit a vertical reciprocating motion to the pipe shaft (6) and the screw hole (18) of the shaft head (7). From the groove to the follower bolt pin (11)
A ski pole characterized by comprising the above-mentioned members that are screwed into a head having a large diameter until it stops. 2. The palm grip portion (1a) has a composite structure in which two or more members and materials are combined in order to obtain more multi-stage cushioning. The outer cushion grip portion is the second hollow portion (5B) and the head bolt. The second, which has a hole (17) and uses a cushioning material
The inner cylinder (15) incorporated in the hollow part (5B) has a pipe shaft reinforced part, a three-dimensional positive movement cam (4), a first hollow part (5) and a palm gripping part fixing projection (16), and is made of a hard material. The rigid inner cylinder (15) is wrapped by the palm grip portion of the cushioning material and formed, and both materials are selected so that the cushion grip portion (1a) and the inner cylinder (15) are naturally formed. It will be separated from the one that adheres,
The buffer gripping part of the separated one is the second hollow part (5B).
And the inner cylinder (15) are fixed by bolts from the head bolt hole (17) and are also held by the palm-grip fixing projections (16), and the two-type composite structure having a cushioning grip ( Ski ski according to claim 1, characterized in that it is fitted with 1a). 3. The upper and lower side faces of the two grooves of the three-dimensional positive cam (4) are always at right angles to the cylinder of the hollow part (5), and the two said grooves are the cylinders of the hollow part. With respect to the widths of the two grooves provided on the opposite sides at the same angle with respect to each other, the diameters of the circles of both heads of the follower bolt bolt (11) can be moved, and the vertical length of the two grooves is 2 etc. When connecting the dividing lines (13, 14) with a straight line perpendicular to the center line (12) of the hollow cylinder, all the straight lines must pass through the center line of the hollow cylinder. Ski ski according to claims 1 and 2, characterized in that: 4. Except for the invariant property described in the preceding paragraph, the angles of the two grooves with respect to the hollow cylinder, and the pipe shaft (6) when the tip ring (21) is pierced is crushed to the left and right. The left and right direction of the groove for rotating, the length of the groove, and the position of the groove are determined by the angle, the left and right direction, and the length within a practical upper limit in which the pipe shaft can move.
Ski ski according to claims 1, 2 and 3, characterized in that it can be provided all around the grip. 5. Except for the invariant property of the third item, the two three-dimensional positive cams (4) described in the preceding item are necessary in order to meet the purpose such as downhill, gliding and other uses, technical level and the like. Inevitably has the property of corresponding change, but this makes it possible to rotate the strength and number of various cushions for cushioning, the shaft head (7), the follower bolt bolt (11), and the tip ring (21) to the left and right. The ski stock according to claim 1, 2, 3, or 4, characterized in that the functions, dimensions, and shapes of the skis change correspondingly.