JP2504285Y2 - Cushion rubber for floor - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention is a buffer floor for preventing or mitigating impact noise caused by falling of an object, noise of moving pedestrians, moving objects, vibration of equipment, etc. on the floor of a building, etc. The present invention relates to a floor cushioning rubber used for, especially for a floor cushioning rubber used over a wide floor, the fact is that there is no effective, easy and easy construction, and inexpensive Is.

[Prior art]

B) There is a cushioning floor in which a rubber plate is attached to the floor and laid on it, and wooden flooring or carpets are attached to the floor. Rubber is originally a viscoelastic body that is soft and easily deformed and exhibits an excellent cushioning effect. However, the spring constant (K), which is one index showing the difficulty of compressing and deforming rubber, is S ( Shape ratio) = AL (pressure receiving area) / AF (free surface area), which is greatly influenced. That is, if a rubber plate is used widely in a large area such as a floor surface, the ratio of the side area on the thickness side to the AL (pressure receiving area) is small, that is, it tends to spread laterally.
Since the AF (free surface area) is extremely small, it shows a large S (shape ratio), the spring constant value (K) shows a very large value, and the rubber plate hardly undergoes compressive deformation even when subjected to a pressing force such as impact. Therefore, since the impact force is absorbed and diffused only slightly, there is a drawback that the impact vibration and the impact sound penetrate downstairs. (B) Floor cushioning rubber is used in which columnar projections or streak projections are provided on one side or both sides of the rubber plate. Since this one has a large free surface area on the side surface compared to the pressure receiving area, the drawback of (a) above is greatly improved, but the impact received from above is directed vertically to the floor below the protruding rubber part. Since it has a penetrating structure, there is a problem that the effect is not sufficient. C) A thick closed-cell sponge board is used as a cushioning material for the floor. Although this one shows a considerable cushioning effect, it has the problem that it is difficult to keep the floor surface constructed on the floor ground horizontal. That is, the extent to which the nitrogen gas in the bubbles escapes due to the passage of a long period of time or the weight of the placed object to make it less easy and the thickness becomes thinner differs depending on the location, and the degree to which the thickness becomes thinner varies depending on the location, causing unevenness on the floor Occurs. D) Home rubber and open-cell sponge plates such as urethane sponge are used as cushioning materials for floors. Since this does not increase the internal pressure of the bubbles due to compression, it easily deforms and exhibits an excellent cushioning effect, but it suffers from a large amount of compression deformation even with a light load and it sinks too much when a heavy object is placed, and once it absorbs moisture. Then, there is a drawback that it is difficult to dry and corrodes the contacted object. E) A large amount of softening agent or pressure-sensitive adhesive was mixed in unvulcanized rubber.
A cushioning floor material in which a cushioning agent that is a combination of a soft viscous substance and foam is sandwiched between wooden floor materials is also used. Although this one has an excellent cushioning effect, it is possible to prevent it from aging under load or due to high temperature flowing soft soft viscous substances to thin the thickness or tilt the floor. Therefore, there is a defect that there is no cushioning effect when shocked to this rigid sewer or strut, the difficulty of manufacturing that requires a lot of man-hours, and the drawback that it is difficult to install on the floor surface. is there. F) A felt-like cushioning material made of fibers of inorganic and organic materials is also used. This has the same effects and drawbacks as the above-mentioned d) open-cell sponge.

[Problems to be solved by the device]

The present invention seeks to improve the above-mentioned drawbacks of the conventional floor cushioning material. (A) An attempt is made to obtain a floor cushioning rubber which exhibits an excellent amount of compressive deformation due to a load such as impact and exhibits an excellent cushioning effect, and which does not cause permanent compression set even when subjected to a compressive load for a long period of time. . B) The use of cushioning material for floors makes the floor surface significantly higher than the conventional floor surface, which is a problem that makes construction design difficult. The purpose is to obtain a new floor cushion rubber.

[Means for solving the problem]

According to the present invention, the front and back surfaces of the rubber plate portion (2) are opposed
In the floor cushioning rubber (1) consisting of cylindrical rubber protrusions (3) provided alternately on the entire surface of the front surface and the back surface, centering on the intersection of the square grid lines, the cushion rubber for the floor is provided alternately on the front surface and the back surface. The projected area of the cylindrical rubber protrusions (3) is 5%
A cushioning rubber for the floor (1), which is composed of cylindrical rubber protrusions (3) having cross-sectional areas overlapping each other in the range of up to 15%, and the entire top surface of each of the cylindrical rubber protrusions (3) on the front surface and the back surface is horizontal. The problem was solved by doing.

[Action]

Since the present invention is configured as described above, it has the following effects. (See FIG. 1, FIG. 2, and FIG. 3) (a) In the present invention, a cushioning rubber for floor (a rubber plate part (2) having a large number of columnar rubber protrusions (3) provided on the front and back surfaces thereof ( Since it is 1), the pressure receiving area is smaller than a simple rubber plate, and the free surface area (side area) that tends to spread laterally is larger than the pressure receiving area. It has a low constant value, is easily compressed and deformed by pressurization, and has the effect of obtaining a floor cushioning rubber (1) having a large cushioning effect. Also, this spring constant value is a cylindrical rubber protrusion (3).
There is an effect that an appropriate value can be selected by changing the diameter and height of the rubber and selecting hardness or softness of the rubber material. B) Since the present invention uses a rubber material having excellent vibration absorption and sound absorption properties, and has a structure having two spaces with low vibration conduction, which are divided into upper and lower portions of the rubber plate (2). It has a large cushioning effect and a sound absorbing effect. C) The present invention has a configuration in which the projected areas of the cylindrical rubber protrusions (3) on the front surface and the back surface of the rubber plate portion (2) are alternately provided in a state of overlapping each other in the range of 5% to 15%. While the shock received on the upper part of the floor surface is not transmitted straight to the floor, the upper cylindrical rubber projection (3) absorbs and absorbs the shock first, while refracting and dispersing it to lower cylindrical rubber projection. (3) has an excellent buffering action because it is configured to conduct and absorb and relax. D) A reference example of a floor cushion rubber similar to that of the present invention, which is shown in FIG. 4, shows an excellent compressive deformation ability and a cushioning effect by a load. A) is thin, a large compressive deformation is caused by a minute load, that is, the rubber plate lying in the space is easily bent by a slight load. For this reason, the floor is too soft and has a bad feeling of walking. When a heavy object is put on the floor, the floor sinks and tilts, and over time, the deformation does not recover permanently and the floor becomes wavy. ) Is a structure in which the projected areas of the cylindrical rubber protrusions (3) alternately provided on the upper surface and the lower surface of the rubber plate portion (2) as shown in FIG. Since each of the cylindrical rubber protrusions (3) slightly overlaps each other with four places sandwiching the rubber plate (2), even if the thickness of the rubber plate (2) is 1 mm.
Even if it is thin and thin, it has an excellent recovery force for compression deformation, and has the effect of not causing compression set even after long-term use.

[Effect of device]

The floor cushion rubber (1) of the present invention has the following effects due to the above-described structure and action. B) The floor cushioning rubber (1) of the present invention has a small spring constant value even on a wide floor surface and has a large effect of absorbing and relaxing shocks, and is provided alternately on the front surface and the back surface via the rubber plate portion (2). The cylindrical rubber protrusions (3) have an excellent cushioning effect due to the synergistic effect with the structure for preventing the rectilinear movement of impact. B) The present invention has an effect of obtaining a cushioning rubber for a floor (1) having a small compression set due to its constitution, and therefore, there is an effect that an excellent cushioning floor without unevenness can be produced by using it. C) Since the present invention obtains a floor cushioning rubber (1) having a good cushioning effect even if the thickness is thin, it can be changed to a cushioning floor without significantly changing the conventional floor design, and the construction is easy. There is an effect. D) The floor cushioning rubber (1) of the present invention is lighter in weight than its construction and has an effect that it can be manufactured at low cost.

【Example】

The rubber used in the present invention may be natural rubber, synthetic rubber or the like. A rubber compound in which a vulcanizing agent, a vulcanization accelerator, a reinforcing agent, a softening agent, an antiaging agent, and other rubber chemicals are compounded in accordance with the required performance is used. As an example of the molding method, the above rubber compound is charged into a vulcanizing mold capable of molding the floor cushioning rubber (1) shown in FIGS. 1, 2 and 3 for vulcanization. The floor cushion rubber (1) is molded by vulcanization by pressing and heating using a press machine. The following is a simple construction example for reference. First, in order to secure the adhesive force, the flat parts at the tips of the cylindrical rubber protrusions (3) on both sides of the 303 × 1818 × 8 m / m floor cushioning rubber (1) molded as described above are treated with a primer. Alternatively, perform chlorine addition treatment with a chlorine addition agent. Next, on the back side of the wooden floor covering (303) of 303 × 1818 × 12 m / m, which has a veneer that makes use of the natural wood grain on the surface, 2
Apply liquid-curable epoxy adhesive or urethane adhesive, and apply the above-mentioned primer buffered floor cushioning rubber (1) to this surface, and bond with light pressure. When the agent is cured, wooden floor materials with cushion rubber for floors are produced at the factory. Next, while applying a two-component curing type capoxy adhesive on the floor surface, while fitting the male protrusion to the female groove provided on the side surface of the above-mentioned wooden floor material with cushioning rubber for the floor, accurately By combining and laminating, the buffer floors shown in FIGS. 5 and 6 are completed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a floor cushion rubber of an embodiment of the present invention. FIG. 2 is a sectional view taken along line AA and BB of FIG. 1 and FIG. FIG. 3 is a plan view showing a part of a floor cushion rubber of an embodiment of the present invention. FIG. 3b is a sectional view taken along the line CC of FIG. 3a. FIG. 4a is a similar floor cushion rubber. Fig. 4 is a plan view showing a part of the reference example product. Fig. 4b is a sectional view taken along the line D-D in Fig. 4a. Fig. 5 is the embodiment of the present invention. Fig. 6 is a perspective view showing a part of the construction example of Fig. 6. Fig. 6 is a perspective view showing a part of an example in which the cushioning rubber for floor of one embodiment of the present invention is applied to the floor ground. Rubber plate 3 …… Cylindrical rubber protrusions 4 …… Wood flooring 5 …… Concrete flooring 6 …… Wood plywood flooring 7 …… Joists

Claims (1)

(57) [Scope of utility model registration request] 1. A front surface and a rear surface of the rubber plate portion (2) are opposed to each other
In a cushioning rubber for a floor (1) consisting of cylindrical rubber protrusions (3) alternately provided on the entire surface of the front and back surfaces, with the intersection of the square grid lines as the center point, provided alternately on the front and back surfaces. The projected area of the formed cylindrical rubber protrusions (3) is 5%.
A cushioning rubber (1) for a floor, which comprises cylindrical rubber protrusions (3) having cross-sectional areas overlapping each other in the range of up to 15%, and the entire top surface of each of the front and back cylindrical rubber protrusions (3) is horizontal.