JPH0711233Y2 - Floor panel - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a floor panel laid at a predetermined distance from a floor slab, and more specifically, a reinforcing material in which the back surface of the panel material is a metal plate. In a floor panel lined with, a floor panel in which the adhesion between the panel material and the reinforcing material is improved to increase the strength.

[Conventional technology]

In business establishments and offices handling various electric or electronic devices, a large number of power supplies for those devices are required. Further, in a department handling a computer, it is necessary to provide a cable for connecting various terminal devices for input / output and the computer. Conventionally, an outlet for power supply is provided on the wall, etc., but it is possible to accidentally pull out the connection cord with your feet while walking, if you pull the connection cord from there to the place where the equipment is installed. There is a risk that it will become the underlay of other equipment or that the connection cord will be disconnected when passing a trolley or the like. In the case of computers, this can corrupt the data being input or output. Therefore, in such a department, a system is adopted in which the floor has a double structure, a connection cord is arranged between them, and an outlet or a cable connector is exposed on the floor near the installed equipment.

On the other hand, due to the development of orifice automation (OA) equipment, various or many electric or electronic devices are used even in ordinary offices, and along with this, many power outlets and cables for connecting between devices. A connector is needed. Therefore, even in a normal office, the double-structured floor as described above is often constructed.

An example of such a double-structured floor will be described with reference to FIG. 3. A quadrilateral floor panel 1 having a side of 30 to 60 cm and a thickness of 15 to 30 mm is called GRC reinforced with concrete or glass fiber. The panel member 2 is made of concrete, calcium silicate, or the like, and the reinforcing member 3 made of a steel plate is positioned so as to line the back surface of the panel member 2. At the four corners of the floor panel 1, pin holes 4 extending vertically from the reinforcing material 3 toward the panel material 2 are bored, and the pin holes 4 support the floor panel 1 at predetermined intervals on the floor. A pin of a supporting column (not shown) is inserted. A plurality of protrusions 5 are provided on the reinforcing material 3 so as to project toward the panel material 2 and bite into the panel material 2 so as to have a mechanical coupling force between them.
Are integrally formed.

The reinforcing material 3 is used for the purpose of improving the strength and thinning the panel thickness of the panel material 2. However, in order to increase the adhesive force between the reinforcing material 3 and the panel material 2, the reinforcing material 3 has the above-mentioned structure. As described above, the plurality of protrusions 5 are formed. This protrusion 5
Is provided with a plurality of rectangular openings 6 in the reinforcing member 3 at equal intervals in the vertical and horizontal directions. At this time, punching is performed so that one side of the shorter opening 6 is left, and it is inclined and raised upward. It is formed by As another example of the shape of the protrusion, for example, as seen in Japanese Utility Model Laid-Open No. 62-1404, a shape in which the tip is bent substantially at a right angle and the tip is bent substantially horizontally, for example, Japanese Utility Model Laid-Open No. 62-633. As can be seen from the above, a structure composed of triangular or arc-shaped ridges has been proposed.

[Problems to be solved by the device]

As described above, each of the protrusions is formed in the opening by providing a rectangular opening in the reinforcing material. Therefore, when stress is applied to the floor panel, the stress is likely to concentrate at the four corners of the opening, and cracks often occur at the four corners. Further, since the projection is formed by rising from the opening, the flow of the panel material near the projection is blocked by the projection, and a panel-free portion may occur near the projection. Furthermore, since the openings are formed at equal intervals in the vertical and horizontal directions, crack lines due to protrusions run in the panel material in the vertical and horizontal directions, and break lines that are easy to break for the panel material are in the vertical and horizontal directions. It is the same as that formed, and when stress is locally applied to the panel material,
It may crack along the break line.

Therefore, an object of the present invention is to provide a floor panel having a protrusion that can prevent the concentrated stress from being generated in the opening due to the formation of the protrusion and can easily pour the panel material. It is to improve the disadvantages.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a reinforcing material made of a metal plate having a large number of protrusions integrally formed on the back surface side of a panel material made of a casting such as concrete so that the protrusions may bite into it. In the joined floor panel, each of the protrusions is composed of a plurality of tapered protrusions cut and raised substantially at right angles from the peripheral edge of the circular opening formed in the reinforcing member, and each of the adjacent protrusions. It is characterized in that a gap into which the panel material can flow is formed between them.

In this case, it is preferable that the openings are arranged in a staggered pattern on the reinforcing material.

[Action]

As mentioned above, the opening for making the protrusion is circular, so even if stress is applied to this opening, stress will not concentrate, so prevent cracking of the panel material due to stress concentration. You can Since each projecting piece is tapered and bent as it goes upward, a gap is formed between adjacent projecting pieces so that the panel material can flow into it.Therefore, even on the opening surrounded by the projecting pieces. Panel material can be poured.

〔Example〕

The present invention will be described below with reference to an embodiment shown in FIGS. Quadrilateral floor panel with one side of 30 to 60 mm 11
Has a panel material 12 made of GRC or calcium silicate as in the floor panel 1, and a reinforcing material 13 made of a metal plate such as a steel plate positioned so as to line the back surface of the panel material 12. is doing. At the four corners of the reinforcing member 13, pin holes 14 into which the pins of the above-mentioned support columns are inserted are formed.

As shown in the upper part of FIG. 1, the protrusions 15 formed on the reinforcing member 13 first have notches 17 having notch lines 16 extending from the central portion in five directions at appropriate intervals, and respectively. Form a staggered pattern with an angle of approximately 60 degrees. Such a score line 16 can be easily obtained by, for example, preparing a jig in which a blade having the same shape as the score line is formed at the tip portion in advance, mounting the jig in a press machine or the like, and pressing. . Next, each notch 17 is raised at a substantially right angle to form five protrusions 18, which are formed. For this rising, for example, prepare a round bar jig having a substantially same shape as a circle formed by connecting the tips of the cut lines 16, align the center of this jig with the center of the cut 17, and then press. It is formed by In this way, the protrusion 15 having the five protrusions 18 standing upright at a substantially right angle is integrally formed on the peripheral edge of the opening 19. Each projecting piece 18 is tapered toward the tip, and a gap is formed between the adjacent projecting pieces 18 such that the width thereof becomes wider toward the tip.

In the production of such a floor panel 11, the panel material 12 is first poured into a mold (not shown) having a size corresponding to the size and the thickness of the floor panel 11, and the reinforcing material is applied thereto from above.
13 is placed, and the reinforcing material 13 is fitted into the opening of the mold while being pressed and dehydrated on the reinforcing material 13. At the time of pressurization, the panel material 12 is also poured into the inside surrounded by the projecting pieces 18 through the gap between the projecting pieces 18, so that the panel material 12 is surely filled in the openings 19.

Since the protrusion 15 is formed on the peripheral edge of the circular opening 19, even if stress is applied, the stress is not locally concentrated on the peripheral edge of the opening 19, so that a crack is generated from the opening 19 to the panel material 12. Can be prevented. Further, since the protrusions 15 are arranged in a staggered pattern, local stress acts on the floor panel 11 in the vertical or horizontal direction, and the protrusions 15 are positioned with a wider space in the vertical or horizontal direction than in the past. So that the protrusion 15
Due to this, the interval between the break lines of the panel material 12 is widened, and the occurrence of cracks can be sufficiently prevented.

In addition, in the above-mentioned embodiment, the projection 15 is composed of five projecting pieces 18, but it is needless to say that five or less or more may be formed.

[Effect of device]

As described above, the floor panel of the present invention is composed of a plurality of tapered protrusions in which each protrusion is cut and raised at a substantially right angle from the peripheral edge of the circular opening formed in the reinforcing material. Since the opening for making the is circular, stress does not concentrate even if stress is applied to this opening, and it is possible to prevent cracks from occurring in the panel material due to stress concentration in the opening. . Further, since each projecting piece is formed in a taper shape toward the upper side (panel material side), there is a gap formed between the projecting piece and the adjacent projecting piece so that the panel material can flow into the projecting piece. The panel material can be poured over the opening.

Furthermore, by arranging the protrusions in a staggered pattern, the gap between the intermittent break lines of the panel material caused by the protrusions in the vertical or horizontal direction of the floor panel becomes wider, and it is possible to prevent breakage such as breaking from this break line. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a reinforcing member in an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view showing a part of the floor panel in section, and FIG. 3 is an example of a conventional floor panel. It is a perspective view shown. In the drawings, 11 is a floor panel, 12 is a panel material, 13 is a reinforcing material, 15 is a protrusion, 16 is a score line, 17 is a notch, 18 is a protrusion, and 19 is an opening.

Claims (2)

[Scope of utility model registration request] 1. A floor panel in which a reinforcing material made of a metal plate on which a large number of projections are formed is integrally joined to the back surface side of a panel material made of a casting, such as concrete, so that the projections bite into it. In the above, each of the protrusions is composed of a plurality of tapered protrusions cut and raised substantially at right angles from the peripheral edge of the circular opening formed in the reinforcing member, and between the adjacent protrusions, A floor panel, characterized in that a gap into which the panel material can flow is formed. 2. The floor panel according to claim 1, wherein the openings are arranged in a staggered manner on the reinforcing material.