JPH02255168A - Sliding implement for lawn ski contest - Google Patents

Abstract

PURPOSE:To execute the contest and training in the same way as on snow in a place where there is no snow by providing many rollers whose rolling surface is positioned in the lower level than the bottom face of an elastic sliding lever extending over the longitudinal direction so as to be freely turnable on both sides of a pair of elastic sliding levers having almost the same flexible elasticity and torsional elasticity as those of a snow ski board. CONSTITUTION:An elastic sliding lever 1 is constituted of a front side lever part 3 which forms a side face shape curved in a crown bow shape (indicated with an arrow A) in the same way as a snow ski board and extends to the front side of a boots fitting part 2a, and a rear side lever part 4 which extends to the rear side. On the elastic sliding lever 1, rollers 7a, 7b, 7c, 7d and 7e are provided axially so as to be freely turnable on both ends, respectively with respect to roller axes 6 provided axially on plural bearing bulge parts 5a. According to this constitution, since many rollers are provided so as to be roughly proportional in accordance with a weighted distribution applied at the time of sliding, average weight is applied to each roller, the same weighted distribution characteristic as the snow ski board, and also, the elastic sliding lever 1 has the same flexible characteristic and torsional characteristic as those of the ski board, therefore, an edge effect related to each roller becomes approximate to the ski board.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the development of a new running equipment for turf ski competitions, and in particular, it has motion characteristics such as two rotations and braking similar to snow skis, and is suitable for use on snow. The present invention relates to a turf ski competition running equipment that allows competitions and training similar to those used for commercial skis.

[Conventional technology]

Various types of turf ski equipment have been used for non-snow skiing, but these turf ski equipment generally take the form of an elongated roller skate and have multiple rollers or caterpillars on the lower surface of a rigid body that is worn on the foot. Because of this structure, various movement characteristics such as sliding and turning are completely different from those of snow skis.

Therefore, the applicant of the present application has developed a pair of skis that have approximately the same length and width as snow skis, and have the same flexural elasticity as skis for use in turf ski competitions used in snowless areas or during non-snowy conditions. A ski for turf skiing competitions that has a number of rollers rotatably mounted on its lower surface in the longitudinal direction.
Utility Model Application No. 109821/1983) was filed to provide turf ski equipment with motion characteristics similar to those of snow skis.

[Problem to be solved by the invention]

However, the above-mentioned sliding boards for turf skiing competitions basically have a structure in which a large number of rollers are mounted on the underside of the snow ski, so the sliding surface is raised and the sliding and rotation of snow skis is difficult. Comparing the movements, it was found that the characteristics were slightly different, and the feeling when sliding and turning was different from that for snow.

The present invention has been made in view of the above-mentioned problems, and it makes the motion characteristics of turf ski racing equipment more similar to those of snow skis, and allows competitions and training similar to those on snow in snowless areas or during non-snowy conditions. The object of the present invention is to provide running equipment for turf skiing competitions.

[Means to solve the problem]

The turf skiing competition sliding equipment according to the present invention has a rod shape having a side surface similar to that of a snow ski that is curved into a suspended shape,
A pair of elastic gliding rods having flexural elasticity and torsional elasticity substantially similar to snow skis, the rolling surfaces of which are located lower than the bottom surface of the elastic gliding rods in the longitudinal direction on both sides of each elastic gliding rod. The main idea is to rotatably arrange and arrange a large number of rollers on a shaft, and a wide boot attachment part can be integrally formed approximately in the center of the elastic sliding rod.

Among the many rollers arranged on the sliding device, it is preferable that the roller of the boot attachment portion be located inside the width of the member plate.

It is preferable that each of the above-mentioned rollers is constituted by a pair of rollers having rotatable bt shafts at both ends of a roller shaft pivotally mounted to the elastic sliding rod, and that the gaps between the rollers of each pair are configured to have the same width.

Furthermore, it is desirable that the number of rollers be arranged approximately proportionally to the load distribution applied when the ski skis, and that the roller diameters at the front and rear portions of the ski be larger than those at the central portion.

[Effect]

According to the above configuration, since the large number of rollers are arranged in proportion to the load distribution applied during sliding,
An average weight is applied to each roller, and the weight characteristics are similar to those of snow skis.

In addition, since the sliding concrete has the same bending elasticity and torsional elasticity as snow skis, each roller attached to the sliding concrete presses against the sliding surface with the same ground pressure as a snow ski. It will be done. In addition, each roller has a spindle-shaped curved circumference in which the outer diameter is smaller than the inner diameter, and the outer arrangement line of the roller located in the center of the rollers is closer to the side edge of the sliding body. Coupled with the fact that the rollers are arranged to be located on the inside, the plate surface tends to tilt sideways, and when tilted, there is a difference in the circumferential diameter of the rollers due to movement of the installation surface and edges due to the curvature of the outside arrangement line. Depending on the effect, it exhibits motion characteristics similar to snow skis.

〔Example〕

Hereinafter, embodiments of the turf ski competition ski platform according to the present invention will be described with reference to the drawings. FIGS. 1 to 3 show the first embodiment.

Reference numeral 1 is a snow ski and an elastic sliding rod 1, which is the general manager.
It is a mid-high hanging type (arrow A) similar to snow skis.
It has a curved side shape, and can be fixed with boot mounting brackets (not shown) similar to snow skis on the rod.
It is constituted by a front side frame part 3 extending to the front side of the boot attachment part 2a and a rear side frame part 4 extending to the rear side. Elastic sliding rod 1
is a rectangle.

It is possible to form various cross-sectional shapes such as a semicircle, and the elastic sliding rod 1 as a whole has bending elasticity and torsional elasticity similar to snow skis. It is made of composite material.

The elastic sliding rod 1 has a plurality of bearing bulges 5a, and rollers 7a are provided at both ends of each roller shaft 6 provided on each bearing bulge 5a.

7b, 7ct, 7d, and 7e are rotatably installed on shafts, each forming a pair. The gaps between each pair of rollers 7a, 7b, 7c, 7d, and 7c provided on each roller shaft 4 are configured to have the same width regardless of the front and rear positions, and the front and rear rollers 7a, 7b, and 7c .

The positions 7d and 7c are arranged so as to be approximately proportional to the load distribution applied to the elastic sliding rod 1 during sliding, and the central boot mounting portion 2a has a larger number of holes than the front and rear frames 3 and 4. rollers are provided. The outer arrangement line L2 of the boot attachment portion 2a and the plurality of rollers 7b, 7c, and 7d pivotally installed at the front and rear of the boot attachment portion 2a is arranged in an inwardly curved arc shape, and the rollers at the front and rear of the elastic sliding rod 1 7a
.

The diameters of rollers 7b, 7d, and 7e are larger than the diameter of the roller 7c at the boot attachment portion 2a.

Each of the rollers 7a, 7b, 7c, 7d, and 7e is molded from hard, semi-hard, or soft synthetic resin, as shown in FIGS. 4 and 5, and has a spindle shape in which the outside diameter is smaller than the inside diameter. At the same time, the peripheral surface of the roller has irregularities 10 and radial stripes 11, which are variously selected depending on the conditions of the running surface. The structure has various uneven patterns including the thrust stripes 12 and combinations thereof.

The turf ski competition running equipment having the above structure is used as a pair, and like skis for snow, a known boot mounting bracket is fixed to the boot mounting portion 2a at the approximate center of the upper surface of the elastic sliding rod 1. You can set it up and wear it.

According to the above configuration, a large number of rollers are arranged so as to be approximately proportional to the load distribution applied during sliding.
The average load on each roller is uneven, showing load distribution characteristics similar to those of snow skis, and the elastic sliding rod 1 has the same deflection and twisting characteristics as skis, so that the average load on each roller is The edge effect comes to approximate each characteristic of the ski.

The above-mentioned turf ski competition running equipment is used on non-snow surfaces such as natural and artificial turf or concrete level surfaces, but like snow skis, it is possible to not only slide and rotate but also jump.

That is, since the elastic sliding rod 1 has bending elasticity and torsional elasticity similar to snow skis, the rollers 7at 7b, 7c are pivotally mounted on the elastic sliding rod 1.

7d and 7e are each pressed against the sliding surface with ground contact pressure similar to that of snow skis. Also, each roller 7a, 7
b, 7c, 7d, and 7e constitute a spindle-shaped curved circumference in which the outer diameter is smaller than the inner diameter, and the outer arrangement line L of the roller 7b located at the center of the rollers.
2 has an inwardly curved arc shape, which makes it easier to tilt the frame sideways, and when tilted, the difference in circumferential diameter of the roller due to the movement of the contact surface and the edge effect due to the curvature of the outer arrangement line L2 make it easier to use on snow. Represents motion characteristics similar to skiing.

Next, FIGS. 6 to 8 show a second embodiment of the turf skiing equipment.

To explain only the structure of the parts that are different from the first embodiment, the front frame part 3 of the elastic sliding rod 1 of this embodiment is the tip part 3.
A side guard 8a is formed which is widened in the width direction, and this part has an upwardly curved side surface shape similar to a snow ski.

Furthermore, FIGS. 9 to 13 show a third embodiment in which a plate-shaped boot attachment portion is integrally constructed in the boot attachment portion of the previous embodiment.

Reference numeral 1 designates an elastic sliding rod 1 having the same length as a snow ski, and a wide and thin boot mounting portion 2 having a planar shape with approximately the same length and width as a snow ski on its midsection. At the same time, the boot attachment part 2 is curved into a mid-height suspension shape (arrow A) by the front frame part 3 extending to the front side and the rear frame part 4 extending to the rear side, similar to snow skis, and the tip part is bent upward. It has a curved side profile. The front scale part 3 and the rear scale part 4 have a vertically long rectangular cross-sectional shape, and are made of wood or metal so that the entire elastic sliding rod 1 has the same bending elasticity and torsional elasticity as snow skis. Alternatively, it is constructed from a plate material such as synthetic resin and a composite material thereof.

A roller shaft 6 is provided on the lower surface of the elastic sliding rod 1 with respect to a plurality of bearing fittings 5 fixed along the center line, and a pair of rollers 7a,
7b, 7c, 7d, and 7e are rotatably mounted on shafts. A pair of rollers 7a, 7b provided on each roller shaft 6,
7c, 7d.

The gap between the rollers 7c is the same regardless of the front and rear positions, and the gap between the front and rear rollers 7a, 7b, 7c, 7d, 7
The c position is arranged so as to be approximately proportional to the load distribution applied to the elastic sliding rod 1 during sliding, and the front and rear frames 3,
4, the central boot mounting portion 2 is provided with a larger number of rollers. 1. The outer arrangement line L2 of the plurality of rollers 7c pivotally installed on the boot attachment part 2 has an arcuate shape smaller in diameter than the arcuate side edge line L1 of the boot attachment part 2, and the roller 7c in the center has an elastic sliding rod 1. It is arranged so that it is located inside the board width.

Also, large diameter rollers 7a provided at the front and rear of the elastic sliding rod 1,
7b, 7d, and 7e are pivotally installed with a part of their diameter retracted toward the upper surface side of the elastic sliding rod 1, and all rollers 7a, 7b, 7c, and 7d extend from the lower surface of the elastic sliding rod 1.

It is constructed so that the distance of the running surface of 7e is approximately constant.

The elastic sliding rod 1 has a tip, a front frame 3 and a rear frame 4.
The rollers 7at and 7b are widened in the width direction and have large diameters.
, 7d, 7c, side guards 8a, 8b, 8
It consists of c.

Further, reference numeral 13 denotes a roller guard which is protruded from the lower surface of the elastic sliding rod 1 in the vicinity of the front side of the main rollers, and is provided within a range that does not protrude beyond the installation surface of each roller.

The turf skiing competition running gear having the above structure is used in pairs, and is worn by fixing a known boot mounting bracket to the approximate center of the ten sides of the elastic sliding rod 1, similar to skis for snow. be able to.

According to the above configuration, each roller 7a, 7b, 7C.

7d and 7e constitute a spindle-shaped curved circumference in which the outer diameter is smaller than the inner diameter, and the outer arrangement line L2 of the roller 5c located at the center of the rollers is the same as that of the elastic sliding rod 1. Coupled with the fact that it has an arcuate shape with a smaller diameter than the arcuate side edge line L1, it becomes easier to tilt the frame surface to the side, and when tilted, the difference in circumferential diameter of the roller and the outer arrangement line L2 occur due to the movement of the installation surface. Due to the edge effect associated with the curvature of the ski, it exhibits motion characteristics similar to those of snow skis.

Broadly speaking, FIGS. 14 to 16 show a fourth embodiment of the present invention. That is, in this embodiment, the outer arrangement line of the plurality of rollers 7o pivotally mounted on the boot attachment part 2 is arranged along the arcuate side edge line L1 of the boot attachment part 2, and all the rollers 7a.

The outer arrangement lines 7b, 7c, 7d, and 7e have a structure in which the outer arrangement lines 7b, 7c, 7d, and 7e have approximately the same planar shape as that of conventional snow skis.

〔Effect of the invention〕

Since the sliding equipment for turf skiing competitions according to the present invention is constructed as described above, the movement characteristics of the sliding equipment are similar to those of snow skiing boards, and it is suitable for skiing competitions in areas without snow and for out-of-season skiing. It is extremely useful as a sports equipment for ski training or ski-like competitions in non-snowy areas, and the influence of the present invention on turf ski competitions is extremely large.

[Brief explanation of drawings]

Fig. 1 is a plan view of the sliding equipment showing the first embodiment of the turf ski competition slide according to the present invention, Fig. 2 is a side view of the same, Fig. 3 is a bottom view of the same, and Fig. 4 is a view of the rollers. 5(a) to 5(d) are longitudinal sectional views showing the uneven pattern of the roller; FIG. 6 is a plan view of the sliding tool showing the second embodiment; FIG. 8 is a bottom view, FIG. 9 is a plan view of the sliding tool showing the third embodiment, FIG. 10 is a side view, FIG. 11 is a bottom view, and FIG. 12 is a roller. Fig. 13 is an enlarged sectional view showing the mounting structure of the
Figure 14 is a plan view of the sliding gear showing the third embodiment;
The figure is a side view of the same, and FIG. 16 is a bottom view of the same. 1... Elastic sliding rod 2... Boot attachment part 3
．． 4...Frame part 5...Bearing fitting 6...
Roller shafts 7a, 7b, 7c, 7d,
7 e-Rollers 8a, 8b, 8c...Side guards 13...Roller guard procedure amendment (method) 1. Indication of the incident 1999 Patent Application No. 77324 2. Name of the invention Grass ski competition slide Tool 3. Relationship with the case of the person making the amendment Patent applicant Kazuo Osawa 4, 3-3-4 Miyamachi, Fuchu-shi, Tokyo, Agent 401 Jibukuro Century 21 Building, 1-5-4 Nishiikebukuro, Toshima-ku, Tokyo 171 Japan No. 6, July 4, 1999, Drawing 7 subject to amendment, Contents of amendment Drawing 4, Figure 5 (a). (b). (C). (d)

Claims (7)

[Claims] (1) A pair of elastic sliding rods, which are curved rods with a side surface similar to that of snow skis, and have approximately the same bending elasticity and torsional elasticity as snow skis, A turf ski race skiing device comprising a number of rollers rotatably arranged and arranged on shafts, the rolling surfaces of which are located below the bottom surface of the elastic slide in the longitudinal direction on both sides of the slide. (2) The equipment for turf ski competitions according to claim 1, characterized in that a wide boot mounting portion is integrally formed approximately in the center of the elastic sliding rod. (3) The equipment for turf ski competitions according to claim 2, characterized in that among the large number of rollers arranged on the elastic sliding rod, at least the rollers of the boot attachment portion are located inside the width of the member plate. (4) Each roller is constituted by a pair of rollers that are rotatably mounted on both ends of a roller shaft that is pivotally mounted to an elastic sliding rod, and the gap D between each pair of rollers is made to have the same width. 4. The turf ski competition sliding equipment according to claim 1, characterized in that: (5) A turf ski competition slide according to any one of claims 1 to 4, characterized in that a large number of rollers disposed on the elastic slide are arranged approximately proportionally to the load distribution applied to the elastic slide when the slide is skied. Ingredients. (6) The turf ski racing equipment according to any one of claims 1 to 5, wherein the roller diameter at the front and rear portions of the elastic slide rod is larger than the roller diameter at the central portion. (7) The turf ski racing equipment according to any one of claims 1 to 6, wherein each roller has a spindle shape with an outer diameter smaller than an inner diameter.