JPH0532587Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improved subfloor material to be laid on a floor surface such as a concrete slab.

As for the floor structure of conventional concrete buildings,
For example, there are those shown in FIGS. 3 and 4. FIG. 3 shows the floor structure of a Western-style room, and FIG. 4 shows the shape of the subfloor material in FIG. 3.

This floor structure consists of a concrete slab S, a bonding material M applied on the slab S in the form of islands at approximately constant intervals, and a bonding material M placed on top of the bonding material M and bonded to the concrete slab S. It consists of a foamed plastic flooring material B laid integrally, and a slat board _F1 and floor finishing material _F2 stretched over it.

The bonding material M is usually made of mortar balls and an adhesive, and is applied by first applying the adhesive to a concrete slab, placing the mortar balls on top of it, and then applying the adhesive to the back side of the subfloor material. The base material B is made by laying unit base materials B, such as those shown in FIG. 4, in a jointed manner. This unit base material is, for example, a plate-shaped body 1 with a thickness of 50 mm, a width of 600 mm, and a length of 900 mm, with crosspieces 2 for laying floor covering material buried at 450 mm intervals on the front side, and on the back side. In this case, piping grooves 3 for piping are provided vertically and horizontally (Japanese Patent Application Laid-open Nos. 59-68470 and 59-68471).

As this flooring material, for example, grooves having a rectangular cross section are provided in a plate-like body 1 made of synthetic resin foam,
A structure is known in which a crosspiece 2 with good nailing properties is installed (fitted) flush with the top surface of the plate-like body in this groove, and when it is fitted and fixed, the bottom surface of the crosspiece Adhesive is applied to the inner surface of the groove in advance to bond it to the groove portion. However, when the width of the crosspiece is narrower than the width of the groove, a strong bond between the two cannot be achieved, and over a long period of time, the problem arises in that the crosspiece peels off and floats, causing floor noise.

To solve this problem, methods such as forming the groove width smaller than the width of the crosspieces, forcing the crosspieces in, and relying on the tightening stress of the foam (plate-like material) are used to secure the crosspieces. .

In addition, synthetic resin foams include polystyrene,
A foam molded product having a density of 10 to 50 g/m is used, such as polyethylene, polypropylene, phenol resin, etc.

[Problem that the invention attempts to solve]

In the case of the flooring material having the above-mentioned structure, since the crosspiece width is made larger than the groove width, the product is often warped due to over-tightening, which has the problem of directly leading to product loss.

[Means for solving problems]

The present invention was made in order to solve the above-mentioned problem, that is, even if the width of the crosspiece is made smaller than the width of the groove, the crosspiece can be sufficiently integrated. In a flooring material consisting of a synthetic resin foam plate-shaped body provided with a groove, and a crosspiece attached to the groove and integrated with adhesive, both sides of the groove of the plate-shaped body contacting both sides of the crosspiece. The object of the present invention is to provide a flooring material characterized in that a recessed part is provided in the part for retaining an adhesive.

〔Example〕

Below, embodiments of the present invention will be described with reference to the accompanying drawings. The body 1 is provided with a groove 4 that opens toward the upper surface portion 1a, and on both sides of this groove 4,
A recess 5 for retaining adhesive is provided at a portion approximately 1/2 the height of the groove 4. In the figure, 6 is an adhesive (see FIGS. 1 and 2).

The flooring material is made by applying adhesive 6 to both side walls of the groove 4 of the synthetic resin foam plate 1, and then attaching the crosspiece 2.
Manufactured by inserting. The adhesive accumulated in the recess 5 of the adhesive retention section flows out to the contact area between the crosspiece 2 and the plate-like body 1 after the crosspiece 2 is inserted, ensuring the integration of the two, and the adhesive accumulates in the recess 5. When the remaining adhesive 6 solidifies and hardens, it acts as a reinforcing rib and prevents the crosspiece 2 from lifting or coming off, thereby making the integration of the two even stronger.

As the adhesive, an emulsion such as acrylic resin, SBR, butylene/vinyl acetate copolymer, liquid epoxy resin adhesive, etc. can be used.

The shape of the recess 5 may be a V-shaped groove, a U-shaped groove, or a W-shaped groove.

FIG. 5 shows another embodiment of the present invention, in which the initial adhesive force between the plate-shaped body 1 and the crosspiece 2 is maintained until the adhesive 6 hardens (including drying), and the fixing strength of the crosspiece is increased. It is designed to provide a flooring material that is sufficiently filled and does not warp. Flanges 7 are provided protruding from both sides of the crosspiece 2, while the crosspiece 2 is provided on both sides of the groove of the plate-shaped body. Fitting grooves 8 for fitting the flanges 7 protruding from both sides are provided horizontally, and after applying adhesive 6 to the recesses 5 for adhesive retention, the crosspiece 2 is pushed in to form the flooring material. . 9 indicates Aijiyakuri.

In the above configuration, since the crosspiece 2 has the flanges 7 protruding from both sides, the only way to insert it into the plate-shaped body 1 is by sliding it in from the side, and when inserting the crosspiece, adhesive is attached. The agent is pushed out and the recess 5
If there is no adhesive, sufficient adhesion cannot be achieved.
By providing the recess 5, the adhesive in the recess 5 is not pushed out when the crosspiece 2 is inserted, and the crosspiece 2
After the insertion, the adhesive gradually flows out to the contact area between the crosspiece 2 and the plate-shaped body 1, thereby ensuring the integration of the two.

In the above configuration, the width W 1 of the groove 4 of the plate member ₁ and the width W ₂ of the crosspiece 2 are set so that W ₁ ≧W ₂ to avoid tightening that would cause warping, and the width of the fitting groove 8 is set such that W 1 ≧W 2.
If t ₁ and the thickness t ₂ of the flange part 7 of the crosspiece 2 are set such that t ₁ ≦t ₂ and resistance is generated when the crosspiece 2 is pushed into the groove 4 of the plate-like body, the plate-like body 1 Due to the tightening stress (compressive stress) caused by the material, a pressure force is applied to the collar portion 7, and the fixed state of the crosspiece 2 can be firmly established.

In addition, the crosspiece 2 may be provided with a flange 7 protruding from the central part of the side surface of the crosspiece 2, or provided with two flanges 7 (upper and lower), or slightly inclined in either the upper or lower direction. It is also possible to make changes such as protruding from the state.

Furthermore, recesses 10 for adhesive retention may be provided on both side wall surfaces of the crosspiece 2.

〔effect〕

In the present invention, since a recess for adhesive retention is provided on the side wall surface of the groove of the plate-like body, the adhesive accumulated in the recess can be removed after the crosspiece is inserted into the synthetic resin foam plate. The adhesive flows into the contact area between the plate and the crosspiece to ensure their integration, and when the adhesive remaining in the recess 5 hardens, it acts as a reinforcing rib and prevents the crosspiece 2 from lifting up or coming off. This will further strengthen the integration of the two.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a sectional view of a subfloor material, Fig. 2 is a partial perspective view of a synthetic resin foam plate, and Fig. 3 is a floor structure of a concrete building. 4 is a sectional view of the flooring material, A is a plan view, B is a back view, and C and D are side views, respectively. FIG. 5A is a cross-sectional view of a flooring material showing another embodiment, B is a cross-sectional view of a crosspiece used therein, and FIG. 5C is a cross-sectional view of a synthetic resin foam plate.

Claims (1)

[Scope of Claim for Utility Model Registration] 1) In a flooring material consisting of a synthetic resin foam plate with grooves and a crosspiece attached to the groove and integrated with adhesive, A flooring material characterized in that a recessed portion for retaining an adhesive is provided on both sides of the groove of the plate-like body that is in contact with both side surfaces. 2) The flooring material according to claim 1, which is a registered utility model, characterized in that recesses for retaining adhesive are provided on both sides of the crosspiece. 3) Flanges are provided on both sides of the crosspiece, and fitting grooves are provided on both sides of the groove of the plate-shaped body to correspond to the flanges and have a groove width that is the same as or smaller than the wall thickness of the flanges. The underfloor material according to claim 1 or 2, which is characterized in that the flange is fitted into the fitting groove.