JPH0678432U - Lightweight cellular concrete panel - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a lightweight cellular concrete panel which has a through hole having a relatively large diameter in the thickness direction thereof and in which a lower surface layer does not fall off. [Structure] At least two main bars (1
A wire mesh (17) is stretched on a part of a reinforcing bar mat (13) consisting of 1) and three or more auxiliary bars (12) hung in parallel so as to be orthogonal to the main bars, A lightweight cellular concrete panel in which reinforcing bars and wire mesh are integrated and embedded. A portion of the panel where the wire mesh is present is transparently provided so that a drain pipe or the like can be inserted therethrough.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the internal structure of a lightweight cellular concrete panel (hereinafter simply referred to as a panel) in which reinforcing bars are embedded.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 4, it is composed of at least two main muscles 1 arranged in parallel and three or more auxiliary muscles 2 which are laid across in parallel so as to be orthogonal to the main muscles 1. A panel 4 having a reinforcing reinforcement mat 3 embedded therein is well known. When the panel 4 is used as a floor material for a kitchen or the like of a building, a through hole is formed at a predetermined position of the panel 4 for passing a drainage pipe.

[0003]

[Problems to be solved by the device]

 However, since the through-hole has a relatively large diameter, as shown in FIG. 5, the through-hole 5 is drilled by the tool 6 from the upper surface 4a of the panel 4 placed in a horizontal shape to the lower surface 4b. As can be seen, when the tip 6a of the tool 6 approaches the lower surface 4b of the panel 4, the lower surface 4b layer of the panel 4 swells downward, and when the tool 6 penetrates, the above-mentioned layer falls off as shown in FIG. Then, the chipped portion 8 is generated, and the thickness of the panel 4 in the portion where the chipped portion 8 is present becomes thin. Therefore, there is a problem that the strength of the panel 4 is reduced. An object of the present invention is to provide a panel structure capable of solving such a problem.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention comprises at least two main muscles arranged in parallel and three or more auxiliary muscles which are laid across in parallel so as to be orthogonal to the main muscles. In a panel in which a reinforcing bar mat is embedded, a means of tensioning a wire mesh on a part of the reinforcing bar mat is adopted.

[0005]

[Action]

 When laying the panel according to the present invention in a kitchen of a building or the like, the panel is laid as it is or cut so that the wire mesh is at the lower layer at the position where the through hole for the drainage pipe should be formed. In the process of drilling through holes from the upper surface to the lower surface of the panel with a tool, the pre-embedded wire mesh disperses the concentrated load of the tool and suppresses breakage of the base metal that constitutes the panel. Since the wire net is made up of relatively fine wire, the tool cuts this wire net while punching. The base material constituting the attached panel on the lower surface of the wire net except the perforated portion is held by the wire net and does not fall off. Therefore, no chipping occurs in the lower surface layer of the perforated panel.

[0006]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the construction of the panel 14 of the present invention is substantially the same as that of the prior art. That is, the panel 14 has a reinforcing bar mat composed of at least two main bars 11 arranged in parallel and three or more secondary bars 12 hung in parallel so as to be orthogonal to the main bars 11. 13 is buried.

However, in the panel 14 of this embodiment, a wire mesh 17 is stretched on one section of the mat 13 formed by the two main reinforcements 11 and the two auxiliary reinforcements 12. Moreover, this wire net 17 is stretched on the upper surface 14a side of the mat 13 on the lower surface 14b side of the panel 14, and the tool 16 is directed from the upper surface 14a side of the panel 14 toward the lower surface 14b side as shown in FIG. Perforated with panel 14. The peripheral edge of the wire net 17 is held by the mat 13. As a method of holding the peripheral portion of the mat 13, the latter welding of the former or the method of winding the end portion of the wire forming the wire net 17 around the main bar 11 and / or the sub bar 12 is adopted.

The panel 14 in which the wire net 17 is stretched on a part of the mat 13 is manufactured through almost the same process as the conventional panel manufacturing process, but the process of stretching the wire net 17 on the mat 13 is performed. Only is added to the conventional manufacturing process. That is, a wire mesh 17 is stretched on a part of the mat 13, the metal mesh 17 is set in a mold, and a panel manufacturing material is placed in the mold to manufacture the panel 14 by the same method and apparatus as in the prior art. It

However, when a large number of panels 14 are manufactured at the same time by cutting the panel manufacturing precursor with a piano wire, the mat 13 with the wire nets 17 stretched at various positions is used. Should be manufactured. When using the panel 14 to attach a kitchen floor, etc., the positions where the holes should be made differ depending on the building. Therefore, it is better to have an assortment of products so that the panel 14 can be selected for such a case. Of course, in the panel 14 manufactured in this way, it is necessary to be able to determine which panel is in which part the wire net 17 is buried.

When the panel 14 of this embodiment is used for the floor as described above, as in the prior art, the panel 14 is left as it is or the panel 14 is partially provided so that the wire mesh 17 is located at the position where the drainage pipe is inserted. Cut off to form the floor and perforate. Then, as shown in FIG. 3, a floor having a through hole 15 penetrating the panel 14 and the wire netting 17 at the same time is formed, and the floor has no chip on the lower surface 14b side.

The present invention can change the modes of the above-described embodiments within the scope that the effect of the invention is not significantly impaired by following the fundamental technical idea. For example, the type of wire mesh and the size of the mesh are such that they do not hinder the panel manufacturing process, and it is not only possible to punch with a tool at the time of drilling, but also under the condition that the base metal adheres sufficiently to the wire mesh. You can make various changes with. Further, the place where the wire mesh is stretched can be a plurality of sections surrounded by the two main reinforcements and the two auxiliary reinforcements of the mat. Further, if at least both opposite edges of the wire net can be securely fixed to the two rebars or vices that are opposite to each other, it is not necessary to fix all the peripheral portions surrounded by the main and auxiliaries. The panel of the present invention can be used not only on the floor but also on the wall as an exhaust port or through an exhaust pipe.

[0012]

As described above in detail, the panel according to the present invention exhibits an excellent effect that no chipping occurs even when a through hole having a relatively large diameter is drilled by a tool.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment according to the present invention.

FIG. 2 is a partial cross-sectional view showing a process of punching a panel.

FIG. 3 is a partial cutaway view of a perforated panel.

FIG. 4 is a partially cutaway perspective view of the prior art.

FIG. 5 is a partial cross-sectional view showing a perforating process in the prior art.

FIG. 6 is a partial cutaway view of a panel perforated in the prior art.

[Explanation of main symbols]

 11 Main Bar 12 Sub Bar 13 Reinforcing Bar Mat 14 Panel 17 Wire Mesh

Claims (1)

[Scope of utility model registration request] 1. A reinforcing bar mat comprising at least two main bars (11) arranged in parallel and three or more auxiliary bars (12) suspended in parallel so as to be orthogonal to the main bars. A lightweight cellular concrete panel (14) in which (13) is embedded, wherein a wire mesh (17) is stretched on a part of the reinforcing bar mat (13).