JPH07102740A - Floor device of gymnasium - Google Patents

Abstract

PURPOSE:To lay a floor with a balanced hardness all over the floor, by putting a rigid material having a synthetic resin developing a higher strength with curing at least into joints of idle plywood plates. CONSTITUTION:A plurality of steel sleepers 2 are arranged at every certain interval and a plurality of joists 5... are arranged on the sleepers at every certain interval so as to extend to the direction crossing in right angles with the sleepers 2. Next, a plurality of idle plywoods 6, 7 are laid down on the joinsts 5 and moreover, floor-finish materials 15 are laid thereon. In this case, a rigid material 14 having a synthetic resin developing a higher rigidity by curing is put into at least the joints of respective plywood plates 6, 7. The rigid material 14 is constituted of glassfiber which has been soaked in one of epoxy resin, polyester resin, or vinyl ester resin or aggregates are dispersed in one of these resins.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor device for a gymnasium, and more particularly, to a floor device having a structure in which a floor material is supported by a steel joist base so that it can be laid with a balanced hardness over the entire surface. A floor device for a gymnasium.

[0002]

2. Description of the Related Art The floor of a gymnasium has a cushioning effect to reduce the impact received from the floor when exercising, a repulsive effect to give a proper bounce, and a vibration damping effect. It is required to have an elastic action so as not to bruise or scratch the athlete due to a fall or the like. As a floor device satisfying such requirements, for example, there is a floor device described in Japanese Patent Publication No. 3-79508. This floor device will be described with reference to FIGS. A plurality of steel plate-made pulling members 2 are fixed to the base plate 1 at predetermined intervals with bolts 4 via rubber cushion members 3.
A plurality of joist members 5 made of a steel plate are provided at the same interval as the interval of the pulling members 2 in the direction orthogonal to the above. A plurality of plywood 6 for discarding is laid on the joist members 5, and a plurality of plywoods 7 is further laid on each plywood 6 in a direction orthogonal to the plywood 6. Is fixed to the joist member 5. On the plywood 7 for discarding, a cushion layer 8 in which rubber chips are bonded by an elastomer so as to form voids between the chips is laid, and an elastic durable layer 9 such as a hard vinyl chloride sheet or polyurethane is stuck thereon. Alternatively, it is painted, and a surface layer 10 such as a soft vinyl chloride sheet or polyurethane is adhered or sprayed on the elastic durable layer 9. The pulling member 2 and the joist member 5 are composed of plywood 6, 7, a cushion layer 8, an elastic durable layer 9 and a surface layer 1.
Steel plates having low flexural rigidity that can be bent by a load acting on the flooring material composed of 0 and 0 are formed in the same shape.

In the floor device thus constructed,
Regardless of which part of the flooring material is loaded, it acts on the large pulling member 2 through the bending of the flooring material and the joist member 5, and is absorbed by the bending of the large pulling member 2 to the rubber cushion material 3. Since it is transmitted, there is an advantage that the difference in displacement on the floor can be significantly reduced.

[0004]

However, in the above floor device, since the plywoods 6 and 7 laid on the joist member 5 are fixed to the joist member 5 by screws, the heads of the screws are the upper surfaces of the plywood 7. It is necessary to fix it carefully so that it does not stick out. This is because when the head of the screw projects from the upper surface of the plywood 7, a projecting portion is also formed on the cushion layer 8 laid thereon, and the projecting portion is an elastic durable layer on the cushion layer 8. 9 and the surface layer 10 are also a cause of forming a protrusion. Furthermore, since a plurality of plywoods 6 and 7 are laid side by side, naturally there is a seam, and due to the movement of the plywood, the cushion layer 8, elastic durable layer 9 and surface layer 10 are cracked or peeled from this seam. there's a possibility that.

Therefore, an object of the present invention is to suppress the occurrence of cracks and peeling in the surface layer, which is a surface finish material, even when the plywood moves in the floor device as described above, and to fix the plywood to the joist member. It is an object of the present invention to provide a floor device for a gymnasium that does not push up to the surface layer even if the head of the is protruding above the plywood.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a plurality of steel pulling members arranged at intervals, and the pulling members arranged at intervals on the pulling members are extended in a pulling direction. Steel joist members arranged so as to extend in the direction orthogonal to the members, a plurality of plywood for disposal pasted on these joist members, and a floor finishing material laid on these plywood In the floor device for a gymnasium having the above, each plywood is provided with a hard material having a synthetic resin exhibiting a high hardness by being hardened on at least a joint with an adjacent plywood.

In this case, the hard material is preferably composed of glass fiber impregnated with epoxy resin, polyester resin or vinyl ester resin. Further, as the hard material, resin mortar obtained by curing aggregate such as silica sand with epoxy resin, polyester resin or vinyl ester resin may be used.

[0008]

[Function] Since a hard material having a synthetic resin exhibiting a high hardness by being hardened is provided on at least a seam of the plywood laid on the joist member, each plywood is as if the entire plywood is made of one sheet. It is strongly connected to form plywood, and the movement of each plywood can be suppressed more reliably,
Even if a gap or a step is formed in the seam portion, since the void portion of the seam is covered with the hard material, it is possible to prevent the floor finishing material from being depressed along the seam. Further, even if the head of the screw screw for fixing the plywood to the joist member protrudes from the upper surface of the plywood, by providing the hard material flat so that the head of the screw is buried, the screw head is added to the floor finishing material. Also, no convex portion is formed.

Further, when the hard material is made of glass fiber impregnated with epoxy resin, polyester resin or vinyl ester resin, it can be hardened at room temperature and can have high hardness after hardening. You can
In addition, since it can penetrate into the plywood, it can be securely fixed to the plywood. Furthermore, by using resin mortar as a hard material, a layer with high rigidity can be obtained,
It is possible to more reliably prevent the depression of the joint and the protrusion of the head of the screw.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. The constituent elements that are substantially the same as those in the conventional example described above are designated by the same reference numerals, and detailed description thereof will be omitted. In this embodiment, the floor device 11 is supported on the base 1 by the columns 12, and a cushion such as rubber corresponding to the cushion material 3 of the above-mentioned conventional example is provided between the tip of the columns 12 and the pulling member 2. The material 13 is interposed. On the joist member 5 on the hauling member 2, a plurality of plywood 6 for discarding is applied similarly to the conventional example, and a plurality of plywood 7 is further arranged on the plywood 6 in a direction orthogonal to the plywood 6. The plywood plates 6 and 7 are fixed to the joist member 5 with screws (not shown). On the plywood 7, an epoxy resin mortar obtained by curing an aggregate such as silica sand with an epoxy resin, a polyester resin or a vinyl ester resin is applied, or a glass fiber mat is impregnated with the epoxy resin, polyester resin or vinyl ester resin. And hard material 1 having high hardness formed by curing these epoxy resins
4 are provided. The hard material 14 is integrally attached to the upper surface of the plywood 7 by the impregnated epoxy resin. A floor finish material 15 is provided by applying polyurethane or hard polyester onto the hard material 14 or by sticking a vinyl chloride sheet.

As described above, since the hard material 14 made of the epoxy resin, which is hardened by hardening on the entire surface, is provided on the plywood 7, each plywood 7 is as if it is one plywood as a whole. Therefore, the movement of the individual plywood 7 can be suppressed more reliably, and even if there are gaps or steps in the joints, the voids in the joints are covered with the hard material 14, so that the floor finishing material 15 is It does not dent along the seams. Even if the head of the screw for fixing the plywood 7 to the joist member 5 together with the plywood 6 protrudes from the upper surface of the plywood 7, the hard material 14 is provided flat so as to fill the head of the screw. No protrusions due to the screw heads are formed on the finishing material 15.

In addition to the above-described structure, the hard material 14 may be constructed by lining only the joint portion of the plywood 7 with glass cloth and impregnating the glass cloth with epoxy resin. In this case, the lining portion forms a step on the plywood 7, and this step may be filled with the floor finishing material 15.

Although the cushion layer in the conventional example is not shown in the above-mentioned embodiment, when the cushion layer is required, it is provided between the hard material 14 and the floor finishing material 15, or the floor finishing material 15 is used. May be thick so that it also serves as a cushion layer.

[0014]

As described above, since the floor device of the present invention is provided with the hard material having the synthetic resin exhibiting high hardness by being hardened at least on the joint between the adjacent plywood, it is characterized by To do. Each plywood is forcibly connected so that it becomes one plywood as a whole, the movement of each plywood can be suppressed more surely, and even if there are gaps or steps in the seam, the void part of the seam Since the is covered with a hard material, it is possible to prevent the finishing material from denting along such a seam. Further, even if the heads of the screws for fixing the plywood to the joist member are projected from the upper surface of the plywood, by providing the hard material flat so that the heads of the screws are buried, the finishing material is provided with the screw heads. No convex portion is formed.

Further, as described in claim 2, when the hard material is made of glass fiber impregnated with epoxy resin, polyester resin or vinyl ester resin, it can be cured at room temperature and after curing. Since it can have high hardness and can penetrate into the grain of the plywood, it can be firmly fixed to the plywood.

Further, as described in claim 3, by using a resin mortar cured with an epoxy resin, a polyester resin or a vinyl ester resin in which an aggregate is dispersed as a hard material, a layer having higher rigidity is obtained. Therefore, it is possible to more reliably prevent the depression of the joint and the protrusion of the screw head.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a part of an embodiment of the present invention.

FIG. 2 is a plan view showing an example of a conventional floor device with a part cut away.

FIG. 3 is a vertical sectional view thereof.

[Explanation of symbols]

 1 Base 2 Large pulling member 5 joist member 6,7 Plywood 11 Floor device 12 Strut 13 Cushioning material 14 Hard material 15 Floor finishing material

Claims (3)

[Claims] 1. A plurality of steel pulling members arranged at intervals, and a plurality of steel pulling members arranged at intervals on the pulling members.
Steel joist members arranged so that their extending direction extends in a direction orthogonal to the large pulling member, a plurality of plywood for discarding which is laid on these joist members, and on these plywood boards In a floor device for a gymnasium having a floor finishing material laid on, each of the plywood is provided with a hard material having a synthetic resin that exhibits high hardness by being cured on at least a joint with the adjacent plywood. A gymnasium floor device. 2. The floor device for a gymnasium according to claim 1, wherein the hard material is formed by impregnating glass fiber with one of an epoxy resin, a polyester resin and a vinyl ester resin. . 3. The floor device for a gymnasium according to claim 1, wherein the hard material is made of an epoxy resin, a polyester resin, or a vinyl ester resin in which an aggregate is dispersed.