JPH05302426A - Punched part of floor panel - Google Patents

Abstract

PURPOSE:To provide a punched part which can be easily manufactured, has a sufficient strength against the load applied from the top surface of a floor panel and can easily form a large wiring port. CONSTITUTION:A punched part includes an upper groove 5 which is opened to the upper surface 1A of a floor panel 1 and extended in such a manner as to surround the punched part 4 and a lower groove 6 which is opened to the back 1B of the floor panel 1 and extended along the upper groove 5 inside the upper groove 5, wherein the base of the upper groove 5 and the base of the lower groove 6 are positioned substantially within the same plane. When the punched part 4 is tapped from the back 1B side of the floor panel 1 by a wooden hammer or the like, the punched part 4 is easily separated from the floor panel 1 to form a wiring port in the floor panel 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel for forming a double floor on the floor surface of a building, and more particularly to a punching portion for forming a wiring port on this floor panel. ..

[0002]

2. Description of the Related Art Floor panels are located above the floor of a building.
It is laid at the desired height and used to form a double floor. In the space below the floor panel that forms the double floor, cables for OA equipment such as computers and wiring for power supply are housed, so the floor panel requires outlets for these wirings and outlets for outlets. Become. To form a wiring port on the floor panel, a wiring port is formed in advance on the floor panel, and a plug body that is a separate member from the floor panel is detachably attached to this wiring port, or it is fixed on a part of the floor panel. There is one in which a cutout portion capable of cutting out the range is provided (for example, see Japanese Utility Model Laid-Open No. 1-76945).

[0003]

However, among the conventional floor panels described above, in the case where the wiring opening formed in the floor panel is covered with a plug body which is separate from the floor panel, the plug body is used as the floor panel. In addition to having to be formed separately, there is a drawback that the number of parts of the floor panel and the number of working steps increase because a step for mounting the plug body on the wiring opening of the floor panel is required. On the other hand, since the cutout portion described in the above-mentioned utility model publication is formed of the same member as the floor panel, it is easy to manufacture, but this cutout portion can be cut from the lower surface to the upper surface of the floor panel. The bottom plate is cut off beforehand so that it can be done. Therefore, the strength of the cutout portion is low, and inconvenience may occur when the floor panel is used when the cutout portion is not cut out, and since the cutout portion cannot be formed except for the flange portion of the floor panel, It is not possible to form a large opening such as an outlet port.

Therefore, an object of the present invention is to make it easily,
It has sufficient strength against the load from the top surface of the floor panel and can easily form a large wiring port.
It is to provide a punching part for the floor panel.

[0005]

To achieve the above object, the punched-out portion of the floor panel of the present invention has an upper groove that is open to the upper surface of the floor panel and extends so as to surround the punched-out portion. A bottom groove that is open to the lower surface of the floor panel and extends along the upper groove inside the upper groove of the punched portion, the bottom surface of the upper groove and the bottom surface of the lower groove. Are located in substantially the same plane.

In the punched-out portion of the floor panel having such a structure, the lower groove and the upper groove are located close to each other, and the lower groove is inside the upper groove, so that a mallet or the like is applied from the back side of the floor panel. By hitting the punched portion with, the punched portion can be easily separated from the floor panel, and a wiring port can be formed in the floor panel.

Further, since the upper groove is located outside the lower groove, and the bottom surface of the upper groove and the bottom surface of the lower groove are substantially in the same plane, the punched portion is formed between the upper groove and the lower groove. It is integrated with the floor panel in the same manner as it is mounted on the shoulder. Therefore, the load applied to the punched-out portion from the upper surface side of the floor panel is supported by the shoulder portion, so that the punched-out portion has sufficient strength against the load from above.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 3, an aluminum die-cast floor panel 1 has a rectangular shape as a whole, and support legs 3 are press-fitted into support leg fitting holes 2 formed at the four corners thereof. There is. The upper surface 1A of the floor panel 1 constitutes a flat surface, and the rear surface 1B of the floor panel 1 has reinforcing ribs 1
a and 1b extend in the vertical and horizontal directions.

Opposite end faces 1 of the floor panel 1
Semi-circular punched portions 4 are formed in c and 1d, respectively, and these punched portions 4 are integrally molded with the floor panel 1. That is, the punching part 4
Is an upper groove 5 which is open to the upper surface 1A of the floor panel 1 and extends so as to surround the punched-out portion 4 and to the rear surface 1B of the floor panel 1 and which is located inside the upper groove 5 in the upper groove. And a lower groove 6 extending along 5. The bottom surface 5a of the upper groove 5 and the bottom surface 6a of the lower groove 6 are located in substantially the same plane, and the punched portion 4 is placed on a shoulder formed as if between the upper groove 5 and the lower groove 6. In such a form, it is integrally molded with the floor panel 1 (see FIG. 4).

As shown in FIGS. 1, 5 and 7, recesses 5b and 5b projecting outward are formed at both ends of the upper groove 5, and these recesses 5b and 5b are provided at both ends of the punched-out portion 4. The projecting portions 4a and 4a formed in the section are accommodated. Then, inclined support surfaces 6b, 6b having a shape that widens upward are formed at both ends of the lower groove 6, and when the punched portion 4 receives a load such that the joint portion with the floor panel 1 is damaged. Also, the punched-out portion 4 is locked by the inclined support surface 6b so as not to fall out below the floor panel 1.

FIG. 8 shows another embodiment of the inclined support surfaces formed at both ends of the lower groove 6. The inclined support surfaces 6c, 6c of this embodiment are from the end surface 1c of the floor panel 1 to the floor panel 1. It inclines upward toward the center. The reason why the inclined support surface 6c is formed is the same as the inclined support surface 6b, and is to prevent the joint area between the overhanging portion 4a of the punched-out portion 4 and the floor panel 1 from becoming excessive.

A longitudinal groove 4c is formed in the center of the end face 4b of the punched portion 4, and as shown in FIG. 2, a thin wiring 7 can be passed through without punching the punched portion 4. You can do it.

To punch out the punched portion 4, a punch (not shown) or the like is used to strike the punched portion 4 from the rear surface 1B side of the floor panel 1 to break the joint between the upper groove 5 and the lower groove 6. Then, the punched part 4 is separated from the floor panel 1 as shown in FIG. The same applies to the embodiment shown in FIG. When the punching portion 4 is punched in this way, a semicircular opening 8 is formed in the vicinity of the end faces 1c, 1d of the floor panel 1 (see FIGS. 3 and 7), and two adjacent floor panels 1 are formed. A pair of openings 8 are continuously provided between
A circular opening 9 is formed as shown in FIG. A cylindrical up outlet 10 or the like can be attached to the circular opening 9 (see FIGS. 6 and 2). In addition, in the figure, 11 is a standing carpet.

[0015]

As described above, according to the punching portion of the floor panel of the present invention, the lower groove and the upper groove are located close to each other, and the lower groove is inside the upper groove. If the punched portion is hit with a mallet or the like from the back surface side of the floor panel, the punched portion can be easily separated from the floor panel, and a wiring port can be formed in the floor panel.

Further, since the upper groove is located outside the lower groove and the bottom surface of the upper groove and the bottom surface of the lower groove are substantially in the same plane, the punched portion is formed between the upper groove and the lower groove. It is integrated with the floor panel in the same manner as it is mounted on the shoulder. Therefore, the load applied to the punched-out portion from the upper surface side of the floor panel is supported by the shoulder portion, so that the punched-out portion has sufficient strength against the load from above.

[Brief description of drawings]

FIG. 1 is a perspective view of an aluminum die-cast floor panel of the present invention.

FIG. 2 is a perspective view of the floor panel of FIG. 1 laid.

FIG. 3 is a rear view of the floor panel of FIG.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

6 is a cross-sectional view taken along the line CC of FIG.

FIG. 7 is a perspective view of the floor panel according to the present invention when a punching portion is punched out.

FIG. 8 is a perspective view of another embodiment of the punched-out portion of the floor panel of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor panel 3 Support leg 4 Stamping part 4b End face of stamping part 4c Vertical groove 5 Upper groove 5a Upper groove bottom 6 Lower groove 6a Lower groove bottom 8 Semi-circular opening 9 Circular opening 11 Carpet

Claims (1)

[Claims] 1. An upper groove that is open to the upper surface of the floor panel and extends so as to surround the punched portion, and an upper groove that is opened to the lower surface of the floor panel and that is located inside the upper groove of the punched portion. A punched-out portion for a floor panel, comprising: a lower groove extending along the upper groove, wherein a bottom surface of the upper groove and a bottom surface of the lower groove are located in substantially the same plane.