JPH0524769U - Calcium silicate board - Google Patents

Abstract

(57) [Summary] [Purpose] To improve fire prevention / heat retention and construction efficiency while utilizing the characteristics of highly waterproof calcium silicate board. [Structure] The upper joining piece 3 and the lower joining piece 4 are formed to project on the side edge of the board body 2, and the joining pieces 3 and 4 are vertically stacked in the process of butting and mounting the board body 2. To As a result, since the lower joint piece 4 is folded over the back surface of the upper joint piece 3 at the joint portion of the board, the heat retention effect is enhanced, and the situation where the flame goes around the base material 13 can be effectively avoided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a calcium silicate plate, and more particularly to a calcium silicate plate used for a type in which the edges of a board body are butted against each other.

[0002]

[Prior Art]

 Gypsum board is excellent in non-combustibility and heat insulation, and has been widely used as a building material. However, since it cannot be said that the waterproof capacity is sufficient, it was rarely used for walls and ceilings of humid bathrooms, walls around kitchen tables or eaves ceilings. In that respect, calcium silicate board is excellent in waterproofness, and therefore, it is recently receiving attention as suitable for construction in such a place. Generally, when constructing a ceiling surface or a wall surface, a method is used in which one board is fixed to a base and then the edges are abutted against each other in order without overlapping each other.

[0003]

[Problems to be solved by the device]

 However, fire protection at the butt joint is not always sufficient with such a simple butt joint construction. That is, there is a risk that the flame will wrap around to the back surface side from a slight gap at the butted portion. In addition, since the heat insulating property is impaired through this portion, it is not preferable from the viewpoint of energy saving.

In order to solve such a point, the putty may be filled after the butting, but there is a problem that the construction time is delayed due to an increase in the number of steps.

In view of such circumstances, an object of the present invention is to provide a calcium silicate plate which is excellent in fire protection and heat retention and is easy to install.

[0006]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above-mentioned object is one in which construction is performed by abutting the edges of the board bodies with each other. It is characterized in that possible joining pieces are formed to extend.

[0007]

[Action]

 Construction of calcium silicate board is performed by sequentially abutting other board bodies on the side edges of the board body fixed to the base material. At the time of butting, the joining pieces of adjacent board bodies are stacked vertically. As a result, the abutted portions are superposed in different steps.

[0008]

[Effect of the device]

 The effects of the present invention are as follows. In the adjacent board bodies, the joining pieces of each other are vertically staggered and overlap each other, so that fire resistance and heat retention at the joints of the boards are improved. Therefore, it is possible to contribute to energy saving. In addition, since the construction can be performed simply by butt work, highly efficient work can be realized. Since such effects have been realized with a calcium silicate plate having a high waterproof function, it is suitable for construction of ceiling surfaces, wall surfaces or eaves ceilings in bathrooms and kitchens.

[0009]

【Example】

 Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 2 shows the entire calcium silicate plate 1 according to the first embodiment. In this embodiment, 75 to 89% by weight of calcium silicate, 11% by weight or more of inorganic fiber, and 6% by weight or less of organic matter are included in the composition. The one that is used is used and is formed into a square shape as a whole.

Further, joining pieces 3 and 4 are formed substantially horizontally and integrally on the entire peripheral edge of the board body 2, and the joining pieces 3 and 4 are vertically stacked on top of each other during construction. As described above, two types are set, one that projects to the upper level and one that projects to the lower level. In this embodiment, as shown in FIG. 2, pieces adjacent to each other at diagonal positions are set as a set, one set being a higher joining piece 3 and the other set being a lower joining piece 4. Both joint pieces 3 and 4 are projected with a uniform width in the same group, but as described below, the lower joint piece 4 has a wider width than the upper joint piece 3 because of the formation of the joint 5. It is set large.

As shown in FIG. 3, the tip edge of the lower joining piece 4 is cut off at a substantially right angle to form a step edge 6, and the upper portion thereof is continuous with the lower tapered surface 7. The lower taper surface 7 has a gentle upward slope toward the inside and is continuous with the vertical stopper surface 8. The stopper surface 8 is connected to the upper first joint forming portion 9 in a stepwise manner. On the other hand, the upper joining piece 3 corresponds to the step edge 6 and the vertical surface 10 corresponds to the lower taper surface 7 so that the tip end side of the lower joining piece 4 can be received in alignment with the stopper surface 8 of the lower joining piece 4. Then, the upper tapered surface 11 is formed. The upper taper surface 11 is connected to the vertical second joint forming portion 12, and when the adjoining calcium silicate plates 1 are butted, the joint 5 having the U-shaped cross section is formed together with the first joint forming portion 9. .

The first embodiment is formed as described above, and at the time of construction, the reference calcium silicate plate 1 is fixed to the base material 13 by the nails 14 or the like, and then the calcium silicate plate 1 is fixed to the base material 13. Continue with the next calcium silicate plate 1. In this case, the upper joining piece 3 is superposed on the lower joining piece 4, that is, the upper and lower tapered surfaces 7 and 11 are brought into close contact with each other so that the step edge 6 and the vertical surface 10 come into contact with each other. As a result, the joint 5 is formed between the first and second joint forming portions 9 and 12. Then, the calcium silicate plate 1 is also nailed to the base material 13 and sequentially constructed in this manner.

Therefore, according to the first embodiment, since the lower joint pieces 4 are butted against each other on the back side of the joint 5, heat can be effectively prevented from escaping through the joint of the joint 5, and It is possible to regulate the wraparound of flames at the same time. Further, since the construction can be performed simply by joining the upper and lower joining pieces 3 and 4, the construction time can be shortened and the work efficiency can be expected to be improved.

The shape of the joint is not limited to the U-shaped cross section as in the first embodiment, but can be easily changed to various shapes such as a V shape.

4 and 5 show a second embodiment of the present invention. In the second embodiment, a nailing portion is set on the lower joint piece 4 and this portion is covered with the upper joint piece 3 so that the head of the nail 14 is not exposed to the outside. That is, the lower connecting piece 4 has a lower tapered surface 7 extending from the upper surface of the board body 2 to a predetermined height, and a groove edge 15 having an inverse slope is formed from the lower end edge thereof. Further, the lower taper surface 7 is provided with a nailing pilot hole 16 that obliquely penetrates the lower surface of the board body 2.

On the other hand, the upper joining piece 3 is formed with an upper taper surface 11 that sticks to the lower taper surface 7 with the same width, and the upper taper surface 11 projects from the lower edge of the upper taper surface 11 to fit the groove edge 15. A rim 17 is formed.

The range in which the upper and lower joint pieces 3 and 4 are formed is the same as in the first embodiment.

The construction of the second embodiment constructed as described above is also carried out in substantially the same manner as in the first embodiment, but an adhesive agent is interposed between the joining pieces 3 and 4. Therefore, in the second embodiment, the same operational effects as the first embodiment such as excellent heat retention can be exhibited, and in addition to the effects of the first embodiment, it is possible to prevent the nail 14 from being exposed. Therefore, there is also an advantage that the decorativeness is further enhanced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a construction state of a calcium silicate plate.

[Fig.2] Plan view of calcium silicate plate

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view of a calcium silicate plate according to a second embodiment.

FIG. 5 is a sectional view showing a construction state.

[Explanation of symbols]

 1 ... Calcium silicate board 2 ... Board body 3 ... Upper joining piece 4 ... Lower joining piece

Claims (1)

[Scope of utility model registration request] 1. A construction in which board edges are abutted against each other, and joint pieces that can be superposed in different steps are formed on both opposite edges of adjacent board bodies. A calcium silicate board characterized by.