JPH0381469A - Sport floor device - Google Patents

Abstract

PURPOSE:To heighten the performance of a sport floor device by assembling a number of floor panel units each comprising a frame body fixed on a panel molded from a synthetic resin of high flexural strength, the frame body having a metal frame member and supporting legs each provided with an adjusting bolt and a buffer member. CONSTITUTION:Units 3 are each supported by plural supporting legs 5 and are laid all over a pool facility or the like and assembled into a sport floor device. Impact load acting on a panel 1 made of synthetic resin, comprising a relatively thin sheet-shaped portion having a flange and a rib integrally formed on its reverse face, is absorbed by deflection of the panel 1 and that of a frame body 2 and is absorbed also by buffer members 10 via the supporting legs 5. Thus proper resilient performance and safety performance of the device are ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to sports floor equipment for gymnasiums and the like, and more specifically, it relates to a number of floor panel units each consisting of a synthetic resin panel and a metal frame fixed to it. The present invention relates to a sports floor device that is assembled and configured.

(n) Prior Art Recently, when a large building such as a public hall is used as a sports floor, the applicant lays a large number of panel-shaped floor members on top of the original vehicle to obtain a predetermined elasticity performance. When using the venue as a venue, we proposed a floor system in which these floor members were removed to expose the bulk powder and allow heavy objects to be carried in (see Japanese Patent Laid-Open Publication No. 63-219753).

The flooring device of this flooring device is made up of large laminated surface materials, plywood, viscoelastic polymer sheets or damping steel plates, and lightweight, high-rigidity hollow core materials such as high-impact polystyrene, and the bundle members are adjustable. Consisting of a screw and a vibration isolating member, the impact force acting on the floor member is dispersed by the highly rigid floor member, and further absorbed and attenuated by the vibration isolating member of the eastern part.

(C) Problems to be Solved by the Invention By the way, in the above-mentioned floor device, since the floor member is made of a thick and highly rigid member made by laminating a plurality of materials, the impact force on the floor is absorbed exclusively by the vibration isolating member of the bundle member. Absorbed. Therefore, since a relatively large load acts on the bundle member, a large number of bundle members are required for one floor member, and the bundle member is applied to relatively low bundle members.

Furthermore, because the floor member is a relatively expensive member made by laminating a plurality of materials and is made of wood, it can only be applied to dry environments inside buildings such as gymnasiums and public halls.

Therefore, the present invention uses a synthetic resin panel that can be used in humid environments such as open air or pool facilities, and uses the bending characteristics of the floor panel unit to absorb the impact load on the floor. It is an object of the present invention to provide a sports floor device that has elastic performance and safety performance, can be supported by relatively high support legs (bundle members), and thereby solves the above-mentioned problems.

(d) Means for Solving the Problems The present invention has been made in view of the above circumstances, and includes, for example, a panel (1) and a frame fixed to the panel, as shown in FIGS. 1 to 8. A sports floor device (F) comprising a large number of floor panel units (3) consisting of bodies (2) assembled adjacent to each other, wherein the panels (3) are made of synthetic resin filled with fibers and having high bending strength. At the same time, a flange (1a) is integrally formed around the back surface, and grid-like ribs (lb) and (lc) are integrally molded on the back surface, and the frame body (2) is made of metal such as a corrosion-resistant metal. and a frame member (2a) fixed along at least a flange (1a) of said panel, a support leg (5) having an adjustment bolt (9) and a buffer member (10), said panel and frame It is characterized in that the flexure of the body and the buffer member (10) together support the impact on the floor.

(f) Function Based on the above configuration, the floor panel unit (3) is supported by a plurality of supports m5 (5), and is spread over, for example, pool equipment to assemble a sports floor device (F).

The impact load acting on the panel (1) of the floor device (F) is caused by the flange (1a) and ribs (lb), (l
When the synthetic resin panel (1) and the frame body (2>), which are made of a relatively thin sheet-like member integrally molded with c), bend, the absorption is absorbed, and then propagated to the support legs (5>) to create a cushioning member (10). ).In this case, the synthetic resin panel (
1) has high bending strength and a relatively thin structure, so it has relatively soft bending characteristics, and has a metal frame (2).
), the impact load on the floor can be sufficiently absorbed.
, (lc) and the frame (2) can appropriately absorb the bending vibration.

Note that the symbols in parentheses are used to contrast with the drawings, but do not limit the structure in any way.

B) Examples Examples according to the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the sports floor device F that also serves as a pool lid consists of a large number of floor panel units 3, each of which includes a synthetic resin panel 1 and a metal frame 2. .

As shown in Figures 5 to 8, the panel 1 is made of FRP (SMC; 5eat Moldin
g compound), especially RMC (Rigid & Re5ili
ant Molding Compound (registered trademark), and is pressed into a predetermined shape. That is,
The panel 1 consists of a relatively thin planar rectangle, and has a flange 1a formed around the periphery, a relatively high rib 1b in the vertical direction, and a relatively low rib 1 in the horizontal direction.
c is formed, and the entire back surface is reinforced with a peripheral flange 1a and lattice-like ribs lb, lc. Bolts, nuts, etc. are insert-molded in predetermined locations of the panel 1, and a metal frame is formed. The body 2 may be fixed by a mechanical connection. In the panel 1, the panel main body portion is molded from a material mixed with chip-type glass fibers, and the rib portion is molded from a material mixed with glass fibers continuous in one direction. Therefore, since the present resin panel 1 has a high bending strength due to the high fiber content, it only needs to be relatively thin (6 mm), and as a result, it has relatively soft bending performance. In addition, the flange 1a and lattice-like ribs 1b, 1C are integrally molded on the back surface, and these flange 1a and ribs lb, lc are mixed with fibers that are continuous in one direction and have high tensile strength, so they can be bent sufficiently. It has appropriate vibration damping performance while maintaining strength and the above-mentioned soft bending performance.

On the other hand, as shown in FIGS. 2 to 4, the metal frame 2 is made of a corrosion-resistant metal such as aluminum alloy or stainless steel and has a cross-sectional shape. A frame member 2a is fixed to the back surface of the panel along the horizontal ribs 1c, and left and right vertical frame members 2a are fixed along the horizontal ribs 1c.
It has a crosspiece member 2c that bridges 2a and 2a. Therefore, the metal frame 2 has vertical frame members 2a, 2a extending in the width direction.
, and the crosspiece members 2c and horizontal frame members 2a, 2a, which are interposed in large numbers in the width direction, together with the high vertical ribs 1b and low horizontal ribs 1c of the panel 1, reduce the impact load of the floor unit 3. The amount of deflection is averaged in the vertical and horizontal directions, and changes in deflection due to differences in load points on the floor unit 3 are reduced and absorbed.

Furthermore, brackets 2d... are fixed to the four corners of the frame member 2a, and support legs 5 are attached to the pins 1 to the brackets 2d.
1, the panels are foldably connected in the width direction of the panel. The support leg 5 has two members 6,7 with a cross-section shaped like a cross section which are configured to be slidable in the nesting holes, and these members are capable of retracting the front member 7 into the base member 6. It can be constructed short and secured by bolts 12, 12 at several points in the extended position. Further, a nut 7a is attached to the tip of the tip side member 7.
A bolt 9 having a shock absorbing rubber leg member 10 fixed to the tip thereof is screwed into the nut 7a in a freely adjustable manner. Furthermore, as shown in detail in FIG. 3, auxiliary pipes 13 and 14 are bridged and fixed to the two support legs 5, 5 arranged in the horizontal direction, spanning the base member 6 and the tip member 7. Ori,
The reinforcing vibrations 13, 14 particularly prevent the panel unit 3 from wobbling in the lateral direction. Also, as detailed in Figure 9,
A bracing member 16 having a long hole 16a is provided between the base member 6 of the support leg 5 and the vertical member 2a1 of the frame member 2a.
7.19, and by fixing bolts 17.19 at both ends of the elongated hole 16a, the support leg 5 is fixed in the upright position I and can be moved along the elongated hole 16a. By loosening the bolts, the support legs 5 are folded into the stowed position.

Next, how to use this floor panel unit will be explained.

First, as shown in Figure 13, the usage period of pool P is
The support leg 5 is folded into the base member 6 so that it contacts the vertical frame member 2a with the bottle 11 as the center in a state where the front member 7 is contracted, and is stored at the bottom of the pool P in this state. , panel 1 constitutes the bottom P1 of the pool P. Therefore, in the case of a newly built pool, if the panel unit 3 is installed as deep as the thickness of the panel unit 3 in advance, it can be used in exactly the same way as a normal pool, and in the case of an existing pool, this can also be used as a swimming pool lid. Compared to those that do not use floor equipment,
Although the depth is reduced by the thickness of the panel unit 3, the depth is small and can normally be used without problems. Also, at this time, the pool part, which occupies most of the pool equipment,
The panel unit 3 is stored at the bottom of the pool (underwater), and a special space for storing the panel unit is not required, and it is sufficient to secure a small space for storing the panel unit corresponding to the ridge R around the pool.

On the other hand, as shown in FIG. 14, when the pool is not in use, the panel unit 3 is used as assembly method F. That is, the support 1 #15 is rotated to the upright position, and in this state, the bracing member 16 is fixed by tightening the bolts 17 and 19. Then, the front member 7 is extended from the base member 6 and fixed in the extended position with the bolt 12. Furthermore, as shown in detail in FIG. 1, a large number of the panel units 3 are arranged in a staggered manner, and the adjustment bolt 9 is rotated so that the top surface of the panel 1 becomes horizontal by absorbing the slope of the bottom of the pool. In addition, in a shallow part where the adjustment bolt 9 cannot absorb enough water, fix the extended position of the tip member 7 to the base member 6 at an intermediate position, and in this state, adjust the level with the adjustment bolt 9. adjust.

Further, the panel units stored for the ridge R are similarly arranged in large numbers on the ridge R in a staggered manner with the support legs fixed in the upright position.

Then, as shown in FIG. 10, fix the frame members 2a, b of the adjacent panel units 3.3 with the brackets 20, etc. firmly so that there are no steps or gaps between the adjacent panels 1. Link.

As shown in FIGS. 11 and 12, the joint fitting 20 includes left and right clamping plates 21 and 22 that are slidably connected to each other.
and a lever 23 that can rotate together with an eccentric cam 25. The cam 25, which is integrated with the lever 23, is supported by one clamping plate 21 at a bin 26, and a roller bin 27 provided on the other clamping plate 22. is in contact with. Therefore, when the lever 23 is in the open position, the projections 21a and 22a of the left and right clamping plates 21 and 22 are inserted into the holes a formed in the frame members 2a and 2a.
, a, and when the lever 23 is rotated in this state, the large diameter portion of the cam 25 comes into contact with the roller bin 27, and the other clamping plate 22 is drawn toward the one clamping plate 21, and the left and right clamping plates 21 and 22 are adjacent frame members 2a,
2. a and insert the roller bin 27 into the recess of the cam 25.
is held in the clamping position by engagement of the two.

In this way, the sports floor device F on the pool equipment
will be built and the indoor pool will be used as a gymnasium.

When a large impact load is applied to the panel 1 of the sports floor device F by a player jumping and landing or falling, a synthetic resin panel made of relatively thin wall and having high bending strength is applied. 1 has lattice-like ribs lb, lc that are flexed moderately together with the frame 2 that is integrally fixed to the panel 1 and absorb the above-mentioned impact load, and that are integrally formed on the back surface of the panel.
and the flange 1a attenuate the deflection vibration, and the crosspiece 2c and the frame section 2a of the frame body 2 spread the deflection to the support leg 5 while averaging the amount of deflection so as to reduce the influence of the load point. The load propagated by the buffer rubber leg member 10 is absorbed.

Next, a performance test on the sports floor device will be described.

The exercise performance of the sports floor equipment is determined by the ``buffering effect'' that absorbs the energy of a person when they land after performing an intense exercise movement, the ``repulsion effect'' that gives an appropriate amount of momentum to the exercise movement, and the ``vibration effect''. The three elements of "damping action" are expressed as a composite elastic performance, and generally, the elastic performance test involves letting a weight of a predetermined weight fall freely from a predetermined height, and measuring the resulting deformation and damping characteristics of the floor. (JISA-6519), and the maximum amplitude of the floor vibration is (as), the apparent half period T* (sec) at the maximum amplitude of the floor vibration, and the amplitude of the floor vibration is 0. .2 (mm)
The time Tvn (sec) required for the deformation of the floor to decay to the maximum, and the deformation energy U of the floor until the deformation of the floor reaches its maximum,
(Kg-cm) are measured, and by calculating these values according to formulas prescribed in JIS, elasticity value Y and buffering effect value U are obtained. And the elasticity value Y
It is desirable that the maximum value is 0.0 or more and the minimum value is -0.2 or more, and the buffering effect value U is preferably 15 to 40, and the attenuation value is 0.45 (se
c) The following are desirable.

On the other hand, he fell violently on the floor and lost all parts of his body, especially his neck and knees.
Elbows, lower backs, etc. may collide with the floor, and if the floor is not soft enough, there is a risk of serious injury. From this point of view, it is better to test the hardness of a floor during a fall collision by modeling the human head and measuring the maximum acceleration that occurs when the modeling device is freely dropped onto the floor from a predetermined height. (JISA-6519
), and the maximum acceleration is 100 from a safety perspective.
G or less is desirable.

Measurement is carried out at each measurement point on the sports floor device, that is, as shown in FIG. 15, the center point A, the upper point B1 of the support leg (one shock member), and the middle point C. The test was conducted on a flat square (100
Although the measurements were carried out on a floor device with a diameter of 0xlOOOO open), there is no significant difference in the values even with a floor device with a rectangular planar shape.

Table 1 shows the above-mentioned elasticity value Y when panel 1 is exposed as is, when a sheet material with a thickness of 21 m1 is spread on the panel, and when a sheet material with a thickness of 31 m1 is spread on the panel.
, a buffering effect value U and a damping value Tvl.

Based on the above results, the buffering effect value U is approximately within the appropriate range at all points, the attenuation value TvD is also within the appropriate range at all points, and the elasticity value Y is approximately within the appropriate range at all points. It can be seen that the value is approximately at the optimum value, and that the optimum elasticity performance can be exhibited over the entire floor surface.

Table 2 also shows the maximum acceleration values in the hardness test when panel 1 is exposed as is, when a sheet material with a thickness of 2 mm is spread on the panel, and when a sheet material with a thickness of 3 mm is spread on the panel. shows.

Based on the above results, it can be seen that the floor hardness from the viewpoint of safety performance is within the appropriate range in all respects, and that the sports floor device is safe even in the event of a fall collision.

In the above embodiment, the support legs 5 are provided at the four corners of the panel unit 3, but the support leg 5 is not limited to this.
t, S2, S3, and 34 points, so that the support legs of adjacent panel units 3 do not adjoin each other, and so that when the support legs are folded, they do not interfere with each other. Good too.

Although the above embodiment has been described as a sports floor device that also serves as a pool lid, the present invention is not limited to this, and is applicable to floor devices used in outdoor spaces, public halls, ice skating rinks, arenas, etc.
Of course, the invention may also be applied to floor devices used in large buildings such as gymnasiums.

(G) According to the present invention, as described in detail, the floor panel unit (3) includes a panel (1) made of a fiber-filled synthetic resin with high bending strength, and a frame body (2) made of metal. ), it is extremely simple and inexpensive to manufacture, yet it can also be used in humid environments such as pool equipment, and the flexible characteristics of the panel (1) and frame (2) allow it to The support leg (5) can absorb the impact load of
Together with the cushioning member (10), it is possible to exhibit excellent floor performance during exercise with appropriate elasticity, buffering performance, and damping performance, and to ensure safety performance in the event of a fall, making it an excellent sports floor. equipment can be provided.

In addition, the adjustment bolt (9) and the buffer member (
10), the number of support legs (5) can be reduced and the number of the support legs (5) can be increased to accommodate shock absorption due to the deflection of the panel (1) and the frame (2). This makes it possible to expand the scope of application to pool equipment, etc., and the floor unit (3) can be made lightweight, making installation and removal work easy.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a sports floor device according to the present invention, FIG. 2 is a front view showing a floor panel unit according to the present invention, FIG. 3 is a side view thereof, and FIG. 4 is a bottom view thereof. 5 is a bottom view of the synthetic resin panel, FIG. 6 is a sectional view taken along the line Vl--Vl, FIG. 7 is a sectional view taken along the line ■-■, and FIG. 8 is a sectional view taken along the line ■-■. FIG. 9 is an enlarged front view showing the bracing member portion, and FIG. 10 is a bottom view showing the assembled panel unit. Further, FIG. 11 is a front view showing the joint fitting part, and FIG. 12 is a rear view showing the joint fitting. 13 and 1
Figure 4 is a sectional view showing an embodiment in which the present invention is applied to pool equipment, Figure 13 is a pool in use, Figure 14 is a sports floor in use, and Figure 15 is a floor performance test. The bottom view of the floor panel unit serving as a test piece is shown. 1...Synthetic resin panel 1a...Flange,
1b, 1c*...Rib 2...Frame 2a...
Frame member 2a,... Vertical frame member 2a,... Horizontal frame member 2C... Crosspiece member 3... Floor panel unit 5... Support leg, 9... Adjustment bolt 1
0...Buffer member P...Pool F...(Sport floor device (also used as pool lid)) Figure 3 Figure 5 Figure 6 Figure 6 b Figure 8 11 Figure 12 Figure 13 Figure 14 Figure 3 Figure 15

Claims (1)

[Claims] 1. A sports floor device in which a large number of floor panel units each consisting of a panel and a frame fixed to the panel are assembled adjacent to each other, wherein the panel has a bent fiber-filled structure. It is made of a high-strength synthetic resin, and is integrally formed with a flange around the back surface and a lattice-like rib on the back surface, and the frame body is made of metal and is fixed along at least the flange of the panel. A sports floor device comprising: a frame member having an adjustment bolt and a support leg having an adjustment bolt and a buffer member, wherein the deflection of the panel and frame body and the buffer member together support impact on the floor.