JPH019596Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to floorboards for roller skates that are mainly used outdoors, and has good water resistance, weather resistance, abrasion resistance, smoothness, and excellent workability. It relates to roller skating that has good sliding performance and allows safe and comfortable roller skating.

(Prior Art) In general, a floor board for roller skating requires a smooth floor surface, so wood flooring boards are used indoors. On the other hand, in recent years, floor slabs in which waterproof layers, cushion layers, etc. are sequentially laminated on a concrete foundation have been increasingly used outdoors.

The above-mentioned wooden flooring board is suitable for various sports due to its unique cushioning and repulsion properties, and it is also highly safe for enthusiasts as it causes fewer injuries and less fatigue even if it falls. Although it is a popular material, it is well known that it cannot be used outdoors because it has poor water resistance and weather resistance.

On the other hand, floor slabs, which are made by laminating waterproof layers and cushion layers on basic concrete, have excellent weather resistance and smoothness, so as mentioned above, they are being replaced by earth, asphalt, and cast concrete floors outdoors. be. However, this floor slab has poor cushioning properties compared to wooden flooring boards, is difficult to repair when it cracks or breaks, and is also prone to puddles due to rain due to poor drainage. However, there were disadvantages in that it took time and effort to drain the water, and it could freeze in the winter, causing cracks and shortening its lifespan.

(Purpose of the invention) In view of the above points, the purpose of this invention is to
While taking advantage of the unique properties of wood, which has good resilience and excellent safety, it has the same weather resistance and smoothness as the above floor slabs, and has good water resistance, abrasion resistance, and drainage, and is suitable for partial repair. Another object of the present invention is to provide a roller skating floor plate that is easy to use.

(Structure of the invention) In order to achieve the above object, the solution of the invention is to laminate phenol resin-impregnated paper on both sides of plywood coated and impregnated with a water repellent agent on the entire circumference side surface, and to layer a synthetic resin layer on top of the plywood. constitutes a substrate formed by coating,
The upper surface of the substrate is coated with a synthetic resin layer mixed with inorganic powder.

By coating and impregnating the entire circumference of the plywood with a water repellent, it works with the synthetic resin layers on the front and back sides to prevent water absorption from the front and back sides and the end of the wood. And by coating with a synthetic resin layer mixed with inorganic powder, weather resistance,
It has the properties of good smoothness and high surface hardness, as well as the use of plywood as the base material, which has good cushioning and resilience characteristics unique to wood materials, and is excellent in safety. It combines the various performances required for a floorboard for roller skating.

(Effects of the invention) Therefore, compared to wooden flooring boards, the roller skating floorboard of the invention has good water resistance by preventing water absorption from the front and back sides and the end of the wood, and has good smoothness and surface hardness. Since the surface is high, it is possible to prevent the plywood base material from swelling, and also to prevent stains on the surface and cracks, scratches, and abrasion of the paint film, and it is possible to maintain a smooth and beautiful floor surface for a long period of time. Moreover, it has superior cushioning and resilience properties compared to floor slabs made by sequentially laminating waterproof layers and cushion layers on basic concrete. Therefore, it is possible to provide an outdoor roller skating floorboard that provides good sliding conditions and allows for safe and comfortable roller skating.

Furthermore, since the floorboards of the present invention are sequentially fixed and disposed on the subfloor, even if cracks or breaks occur, partial repair is easy. In addition, rainwater falls onto the ground through the joints of the floorboards, so drainage on the floorboards is good, and the floorboards can be used as soon as the rain stops, and because they dry immediately, they are less likely to rot, allowing the flooring to remain beautiful for a long time. This is something that can be further improved.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows a roller skating floorboard A according to an embodiment of the present invention, and 1 has a thickness of about 15 mm as a base material.
~40mm rectangular plywood (300~500mm x 1800~2000mm), grooves 1a are formed along each side edge of the plywood 1, and grooves 1a are formed along the sides of the plywood 1. A water repellent agent 2 made of a solution of higher fatty acids such as stearic acid, a silicone resin solution, a fluororesin solution, or the like is applied and impregnated on the circumferential surface. Further, on both sides of the plywood 1, phenol-impregnated paper is prepared by impregnating 25-300 g/m ² of paper or cloth with 50-500 g/m ² (WET) of phenolic resin with a resin content of 30-70%. 3 are laminated to cover the entire front and back surfaces. Further, on the surface of each of the phenolic resin-impregnated papers 3 laminated on both the front and back sides, a synthetic resin layer 4 made of urethane resin, acrylic resin, oil-modified alkyd resin, unsaturated polyester resin, etc.
The substrate B is formed by coating. In addition, the upper surface of the substrate B is coated with an inorganic powder-containing synthetic resin layer 5 to constitute the roller skating floor plate A. This inorganic powder-containing synthetic resin combines inorganic powders such as alumina, titanium dioxide, clay, and silicon carbide with urethane resin, fluororesin,
It is mixed into synthetic resin such as acrylic resin. Note that the concave groove 1 at the side end of the substrate B
The portion below a is cut out by the thickness of a web portion 8b of the protruding joist 8, which will be described later.

Next, a construction example in which the roller skating floorboard A described above is attached to a subfloor will be described with reference to FIG. 2.

In FIG. 2, reference numeral 6 indicates a plurality of legs arranged at regular intervals, and the legs 6 have a pillar part 6b made of a stud bolt extending upward from the center of the disc-shaped bottom part 6a. A threaded portion 6c is formed at the top of the pillar portion 6b. The leg portion 6
A rectangular flat plate-shaped joist receiving material 7 having bent portions 7a with both sides bent downward is screwed and fixed in the center of the threaded portion 6c, and the upper surface of the joist receiving material 7 has a , a vertically extending web portion 8b and the web portion 8
A hollow rectangular prism-shaped protrusion-attached joist 8 having an approximately T-shaped protrusion 8c in cross section on its upper part, consisting of an apex 8a extending horizontally from the upper end to both sides, is placed, and the above-mentioned pedestal 6 is placed in the center thereof. It is screwed and fixed to the threaded portion 6c of. Further, on the upper part of the joist receiving material 7, a joist 9 that is orthogonal to the joist 8 with a protrusion is placed in contact with the outer surface of the joist 8, and the bottom surface and the joist 9 are placed in contact with the outer surface of the joist 8. The bent portion 7a is tightened and fixed by the clamp member 10 to form the subfloor C.

On the top surface of the frame of the subfloor C formed in this way,
A roller skating floorboard A as described above is placed around the bottom surface thereof, and grooves 1 are provided in the floorboard A.
The concave grooves 1a on the other two sides of the side to which the top 8a is fitted are also laid on the joists 9.
The projecting joists 8 are arranged in parallel to the joists and fixed to the joist receiving material 7, and are successively fitted to the joists 8 to be fixed around the four circumferences.

The above-mentioned subfloor C structure is removable and can be used as an ice skating rink in the winter, a roller skating rink in the summer, or a swimming pool in the summer and roller skating in the winter depending on the season. This is preferable because it is removable. Furthermore, when used in a fixed manner, a subfloor structure commonly used for gymnasium floors is used.

Therefore, as mentioned above, the floorboard A laid on the subfloor C has a
Since the water repellent agent 2 is coated and impregnated on the entire circumferential side surface of the plywood 1, water absorption from the front and back ends can be prevented, resulting in good water resistance. In addition, the surface of the plywood 1 is covered with the synthetic resin layer 4 and the synthetic resin layer 5 mixed with inorganic powder, and the surface hardness is high and the smoothness is good, so the plywood 1 can be prevented from swelling. At the same time, it can prevent cracking, abrasion, and scratches on the paint film, as well as prevent discoloration due to sunlight, and has good weather resistance.

In addition, the above floorboard A is made of plywood 1, so it has excellent cushioning and resilience, and is less likely to cause injuries even if it falls, compared to a floorboard that is made by sequentially laminating a waterproof layer and a cushioning layer on the basic concrete. , it is highly safe as it causes less fatigue.

Furthermore, since it is sequentially fixed on the subfloor C,
Even if cracks or cracks occur, it is easy to partially repair them, and since rain falls from the floorboards A through the subfloor C to the ground, there is no accumulation of water, and the floorboards can be used immediately after the rain stops. Because it dries quickly, it is resistant to decay, does not crack due to freezing in winter, and has excellent durability, allowing you to maintain a beautiful floor surface for a long time. In addition, the side edges of the roller skating floorboard A are formed with grooves 1a on all four sides as in the above embodiment, and in addition, two adjacent sides are formed with grooves and the other two sides are formed with grooves. Alternatively, two opposing sides may be formed into grooves and the other two sides may be formed into grooves.

Furthermore, since the present invention was developed for outdoor use of wooden floors, it is applicable not only to roller skating but also to sports and games played on wooden floors such as basketball, volleyball, cycling, running, and tennis. Needless to say, it can be used.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a floorboard according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view showing the construction state of the same floorboard. A... Floorboard for roller skates, B... Board,
1...Plywood, 2...Water repellent, 3...Phenol resin impregnated paper, 4...Synthetic resin layer, 5...Synthetic resin layer mixed with inorganic powder.

Claims (1)

[Scope of utility model registration request] Phenol resin-impregnated paper is laminated on both sides of plywood whose entire circumference is coated and impregnated with water repellent, and a synthetic resin layer is further applied and formed on top of that.The top surface of the substrate is coated with a synthetic resin layer mixed with inorganic powder. A floorboard for roller skates characterized by comprising: