JP4222958B2 - How to repair floor noise - Google Patents

Description

  The present invention relates to a method for repairing occurrence of squealing on a floor surface in which wood-based flooring materials are joined by sane bonding.

  As shown in FIG. 4, a wooden floor material A in which a male fruit 2 and a female fruit 3 are formed around a wooden base material 1 is joined to each other, and a concrete slab, a discarded laminated plywood disposed on the concrete slab, or the like It is known that a so-called flooring is constructed by directly pasting on a floor base 4 via an adhesive 5. In such a wood-based flooring A, a buffer sheet 6 made of an elastic material is usually provided on the back surface thereof in order to improve soundproofing and vibration isolation.

  In order to lay such a wood-based flooring A on the floor base 4, the adhesive 5 is applied to the laying surface of the floor base 4, and the applied adhesive 5 is slid on the adhesive while the applied adhesive 5 is uncured. The wooden flooring A is moved while the two ends are joined together. At the time of the movement, a part of the applied adhesive 5 is gradually raised and moved at the end face of the buffer sheet 6, and the raised portion enters between the end faces of the buffer sheet 6 facing each other at the time of joining the steel. Thus, the cured adhesive 5a may interfere with the sinking of the buffer sheet 6 during walking. In order to prevent this, usually, as shown in the figure, the end face side of the cushioning sheet 6 is made to recede somewhat from the lower peripheral side face of the woody base material 1, and the raised adhesive 5a is buffered at the time of joining the steel. It is accommodated in a gap 7 formed between the end faces of the sheet.

  In the flooring in which the wooden flooring A having the above-described structure is laid on the floor base 4 as shown in FIG. 4, noise (sounding of the floor) that occurs when the wooden materials slide on each other when a person walks on the floor surface. May occur. Normally, when a person walks on the wooden flooring A, the buffer sheet 6 sinks due to the load, and the wooden flooring A sinks about 3 to 5 mm. However, as shown in FIG. When hung on the vicinity of the joint, sedimentation occurs downward as indicated by arrow A, which faces each other at the contact surface between the upper end surface on the male fruit 2 side and the upper end surface on the female fruit 3 side. The moment M1 in the direction becomes a moment M2 in a direction away from each other on the lower end surface on the male fruit 2 side and the lower end surface side on the female fruit 3 side. When the load is released, the lift occurs as a reaction and the directions of the moments M1 and M2 are reversed. While such a movement of the wooden floor material A gives a good walking feeling to human beings, when the slipping property at the sunk joint portion decreases, irregular sliding between the wooden materials causes the above-described floor noise. The case that happens.

  In order to prevent the occurrence of a floor noise phenomenon, Patent Document 1 (Japanese Patent Laid-Open No. 11-141109) describes that a soft synthetic resin is formed in a portion that comes into contact with each other when wood-based floor materials are joined together. There has been proposed a wood-based flooring made of a thin film made of a resin material, a flocking sheet, a foamed bead of a soft synthetic resin, and the like, on which a sliding contact relaxation material is disposed.

  Further, in Patent Document 2 (Japanese Patent Laid-Open No. 6-173471), a gap is generated between the flooring and the base or between the flooring, and the member is bent or rubbed by receiving a load in this part (sliding). As a method of repairing the phenomenon of flooring, which is an unpleasant sound that occurs when touching), the space is filled with α-cyanoacrylate adhesive to fix the flooring and the groundwork or between the flooring materials A method has been proposed.

  As described in Patent Document 1, the use of a wooden floor material in which a sliding contact reducing material is disposed in a portion that comes into sliding contact with each other when the steel joint is joined can suppress the occurrence of floor noise itself. . However, it is inevitable that the cost of the wooden flooring will increase. In addition, when a load is repeatedly applied intensively to a specific location, the sliding contact relaxation material may be damaged at that portion, and a flooring phenomenon may occur over time.

  When floor squealing occurs, as described in Patent Document 2, a method of filling the gaps with α-cyanoacrylate adhesives to fix the flooring materials is a large number of wooden flooring materials. The advantage of laying and joining the sashes, that is, to improve the walking feeling by moving each wooden flooring at the sunk joint (this means that the wooden flooring is buffered on the back side) This is remarkable when the sheets are laminated), or the advantage that the wooden flooring can be separated one by one when repairing the flooring is not preferable.

In order to solve this problem, the floor noise phenomenon is repaired by pouring a lubricant into the steel joint in the area where the floor noise occurs to make it slippery. Conventionally, a water-soluble resin that is liquid at room temperature (for example, low-molecular-weight polypropylene glycol) is used as a lubricant, and this is dissolved in a solvent (for example, water) to form a diluted solution. Inject from above.
JP 11-141109 A Japanese Patent Laid-Open No. 06-173471

  In the case of the above-mentioned method of pouring the diluted solution of the lubricant into the joint of the steel, at the repair site, after the pouring, step in from the top and confirm that there is no squeaking noise due to rubbing (sliding contact), and repair work However, the flooring phenomenon may occur again after the work is finished (for example, after about one day has passed).

  The reason for this is that in the case of a solution diluted with a solvent, the frictional state may change due to the application of a solvent such as water, and the floor noise phenomenon may temporarily disappear. This is because when the amount is insufficient or the lubricant is unevenly distributed, the floor squealing phenomenon recurs. For this reason, the conventional repair methods require a long period of time from the need to confirm that there is no recurrence of floor squeezing to the end of the work. It is necessary.

  The present invention has been made in view of the above circumstances, and immediately after the repair work, it is possible to surely check whether or not the floor noise has settled, thereby making it possible to greatly increase the work efficiency. An object of the present invention is to provide a method for repairing an improved floor noise phenomenon.

  The present invention is a method for repairing the occurrence of floor squeaking on a floor surface that has been laid with selenium-bonded wooden flooring, and sap-joining is performed by melting a resin having lubricity that is solid at room temperature with heat. It is characterized by pouring into the gap between the parts.

  In the above method, a resin that is solid at room temperature is melted by heat and poured into a gap in the sunk joint, and a solvent such as water is not used at all. Therefore, it can be confirmed in a short time whether the resin solidified after heat radiation functions properly as a lubricant, that is, whether the repair of the floor noise phenomenon is completed. In addition, since it is possible to know in a short time that the repair was insufficient at the first pouring, it is possible to take measures such as pouring additional resin again on the spot, and the work is also efficient in that respect. To do.

  In addition, when a resin with lubricity is dissolved in water or an emulsion, considerations such as lowering the resin compounding ratio (increasing moisture) and lowering the molecular weight are necessary to improve fluidity. Although the effect on floor squealing is slightly reduced, a resin with a high molecular weight can be used when it is melted and poured (poured), and the resin compounding rate is also 100% (no solvent such as water) ) And the effect of preventing floor noise is improved. Further, by increasing the amount of resin, there is an advantage that the effect of preventing floor noise is continued for a longer period of time.

  The means for heat-melting the resin is arbitrary, and a solid resin may be placed on the upper part of the steel joint to be poured, and heat may be applied with an electric iron or the like. When heat is applied, the resin gradually becomes fluid and flows into the gap formed in the sane joint from the gap above the sunk joint. A conventionally known hot melt gun can also be used.

  Examples of the resin having lubricity that is solid at room temperature include polyethylene glycol and polypropylene glycol. Among them, polyethylene glycol is water-soluble and can be easily wiped off with a wet rag, and it does not hinder the adhesion of wax even when applying wax for flooring beautification. Polyethylene glycol having a molecular weight of 2000 or more is particularly preferable.

  In the present invention, the target floor surfaces are all floor surfaces on which wood-based floor materials having sane joints are spread. A hot water sheet or hot water pipe is placed on the floor, and a wooden flooring is laid on top of the floor. However, since a solvent such as water is not used, the method of the present invention can be carried out without hindrance. Although described as a repair method, before flooring occurs, as a precautionary measure, as in the present invention, a resin having a lubricity that is solid at room temperature is melted by heat and poured into the gap of the sunk joint portion. You can also.

  ADVANTAGE OF THE INVENTION According to this invention, the repair operation | work when a floor squealing phenomenon arises can be performed rapidly and efficiently in the flooring which spread | laid the wooden system flooring.

  The present invention will be described below with reference to the drawings. FIG. 1 shows an example of a wooden flooring, and FIG. 2 shows a flooring formed by laying it on a floor base. FIG. 3 is a diagram illustrating the repair method according to the present invention divided into steps.

  The wooden flooring A shown in FIG. 1 is obtained by assembling long unit materials 20 in a laminar manner. As shown in the cross section of FIG. 1b, each unit material 20 includes a wooden base material 1 and a surface decorative layer. 22, a male fruit 2 and a female fruit 3 are formed around the woody base material 1 and are joined to each other. And each unit material 20 is assembled | attached integrally on the buffer sheet 6, and becomes the sheet | seat type | system | group flooring material A of 1 sheet. Such a wood-based flooring material A is laid down on the floor base by the required number of pieces by sunk joining, and the flooring as shown in FIG. 2 is obtained.

  In the flooring in which the wooden floor materials A (and the long unit materials 20) are joined by the sunk joining in this way, the floor squeaking phenomenon is likely to occur in part when a person walks on the floor surface. 4 and FIG. 5 described above. Therefore, it is assumed that floor noise has occurred in the region P in FIG. 2 and is repaired by the method of the present invention.

  3a and 3b show in cross section one of the sunk joints in the region P of FIG. In FIG. 3, the same members as those described in FIGS. 4 and 5 are denoted by the same reference numerals. Further, the adhesives 5 and 5a are omitted for easy understanding of the drawing. First, polyethylene glycol 30 having a molecular weight of about 2000 to 4000 is placed as a resin having a lubricity that is solid at room temperature, on the upper part of the tan joint to be repaired. Then, an electric iron 31 heated to about 100 ° C. is placed, and the polyethylene glycol 30 is heated and gradually melted.

  The melted polyethylene glycol 30 gradually flows into the gaps 32 between the tan joints, where it dissipates heat and solidifies to form a lubricating film 33 of the polyethylene glycol 30. Thereby, the squealing phenomenon that occurs when the wooden base materials 1 rub against each other at the sunk joint can be surely eliminated. Moreover, the time until the molten polyethylene glycol is solidified is extremely short. For this reason, immediately after the completion of the melting operation, the operator can step on the floor surface and move the sunk joint part up and down to confirm whether or not the floor noise phenomenon has been resolved. When sufficient repair is not obtained by one casting, the solid polyethylene glycol 30 is placed again, and heated in the same manner.

  As described above, since it can be confirmed whether or not the repair work is completed immediately after the pouring work is completed, the work period is greatly shortened. As shown in FIG. 3b, even when excess polyethylene glycol 30a remains on the floor after the repair is completed, since polyethylene glycol 30 is water-soluble, it can be easily removed by wiping with a wet cloth. . Also, when applying wax for bedding for flooring, polyethylene glycol 30 does not hinder the adhesion of the wax, so that the operation of applying the wax can be performed smoothly.

FIG. 1 is a plan view showing an example of a wooden flooring, and FIG. 1b is a cross-sectional view taken along the line bb in FIG. 1a. The figure which shows the flooring formed by laying the wood type flooring material shown in FIG. 1 on the floor foundation. The figure explaining the repair method by this invention divided into processes. The figure explaining the sane junction part of a wood type flooring. The figure for demonstrating the reason a floor squeal phenomenon arises in the sunk junction part of a wooden type flooring.

Explanation of symbols

  A ... wood-based flooring, 20 ... long unit material, 1 ... wood-based substrate, 22 ... surface decorative layer, 6 ... buffer sheet, 30 ... polyethylene glycol having a molecular weight of about 2000 to 4000, 31 ... electric iron, 32 ... Gap between the steel joints, 33 ... Lube film of polyethylene glycol

Claims (2)

  This is a method for repairing the occurrence of floor squeaking on floors that have been laid with sanity bonding of wooden flooring material. Resin that has a lubricity that is solid at room temperature is melted by heat to create gaps in the sunk joints. A method of repairing the phenomenon of flooring, which is characterized by pouring.   2. The method for repairing a floor noise phenomenon according to claim 1, wherein the resin having lubricity which is solid at room temperature is polyethylene glycol having a molecular weight of 2000 or more.

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