JP4287562B2 - Floor panel and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor panel used for a double floor structure such as a clean room, a computer room, various precision equipment rooms, etc., which requires the circulation of gas and fluid, and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, a perforated floor panel in which a large number of holes are formed is used for a double floor structure (free access floor panel structure) of a room that requires the circulation of gas-fluid such as the clean room. Among such perforated floor panels, when manufacturing a perforated floor panel having a surface material bonded to the surface thereof, the following manufacturing method has been conventionally used.
[0003]
That is, as a first method for manufacturing a perforated floor panel, a surface material is bonded to a floor panel that has not yet been perforated, and then a number of holes are formed by simultaneously drilling the surface material and the floor panel. There was a way.
[0004]
Another method of manufacturing the second perforated floor panel is to form a plurality of holes in each of the floor panel and the surface material by punching the floor panel and the surface material of different materials separately with a punching press. Then, there has been a method of bonding a surface material having a large number of holes to the surface of a floor panel having a large number of holes.
[0005]
[Problems to be solved by the invention]
However, in the first method for manufacturing a perforated floor panel, since drilling is performed by a single-axis or multi-axis drilling machine, if the number of holes is large, the drilling time becomes longer and There was a problem that the efficiency was lowered and the processing cost was increased.
[0006]
Further, in the method for manufacturing the second perforated floor panel, since the floor panel and the surface material can be punched simultaneously with a punching press, more holes than the first manufacturing method can be punched. Although the drilling time can be shortened as compared with the first manufacturing method, the floor panel and the surface material are bonded together after the drilling of a large number of holes. There is a problem that the floor panel opening ratio may be distorted due to adhesion with a staggered gap between the holes.
[0007]
Therefore, in view of the above problems, the present invention can shorten the drilling time and prevent the occurrence of staggered displacement between the hole of the floor panel and the hole of the surface material. It is an object to provide a panel and a manufacturing method thereof.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the floor panel according to the present invention is:
In a metal floor panel in which a surface material of a different material is bonded to the surface provided with a hole,
A hole in the surface material is provided by press working using a punch passing in front Kiana of the floor panel,
In the pressing process, a die having a concave R-shaped bulging portion in which the height of the upper surface becomes higher along the concave R-shaped curved surface as the punch approaches the peripheral portion of the blade mold hole into which the punch is fitted. ,
The punch is lowered from the back side of the floor panel to which the surface material is bonded, and press working is performed, and the peripheral portion of the hole provided in the surface material is formed in a curved shape .
[0009]
Moreover, in order to solve the said subject, the manufacturing method of the floor panel by this invention is the following.
A surface panel is bonded to the surface of a metal floor panel, and a method for producing a floor panel having holes,
Adhering different surface materials to the surface of the metal floor panel with holes,
A hole is provided in the surface material by pressing using a punch that passes through the hole in the floor panel ,
In the press work, using a die having a concave R-shaped raised portion such that the height of the upper surface becomes higher along the concave R-shaped curved surface as the punch approaches the peripheral portion of the blade mold hole into which the punch is fitted,
The punch is lowered from the back side of the floor panel to which the surface material is bonded, and press working is performed, and the peripheral portion of the hole provided in the surface material is formed in a curved shape .
[0010]
According to the floor panel having such a structure and the manufacturing method thereof, a large number of holes can be formed at the same time by pressing the floor panel and the surface material. Time can be shortened. In addition, since the hole is made in the surface material through the hole in the floor panel that was punched before that, it is possible to prevent the occurrence of staggered displacement between the hole in the floor panel and the hole in the surface material. it can.
[0011]
Further, a die having a blade die hole that is fitted with a punch and performs punching press processing is formed with a raised portion that increases in height as the punch approaches the peripheral portion of the blade die hole of this die. Therefore, it is possible to prevent burrs and omissions from occurring in the peripheral portion of the hole formed in the surface material.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings.
FIGS. 1 to 10 are views referred to for explaining an embodiment of a floor panel and a manufacturing method thereof according to the present invention.
[0013]
In carrying out the method for manufacturing a floor panel according to the present embodiment, an aluminum floor panel 6 cast by a die casting mold as shown in FIG. 1 is prepared. As shown in FIG. 2, the floor panel 6 has ribs 10 and 11 formed on the back side thereof. In the floor panel manufacturing method according to the present embodiment, first, a number of round holes 9 as shown in FIG. 3 are simultaneously punched into the floor panel 6 by a punching press.
[0014]
FIG. 4 shows an enlarged view of the round hole 9 in the circle D in FIG. As shown in the figure, in the circle D, four round holes 9 are arranged close to each other without being in contact with each other, and such round holes 9 are arranged on the back side as shown in FIG. The ribs 10 and 11 are avoided and they are arranged in a grill shape (lattice window shape) as a whole. FIG. 5 shows a cross section taken along line AA of the floor panel 6 in FIG.
[0015]
Next, as shown in FIG. 6, the surface material 5 is bonded to the surface of the floor panel 6 with an adhesive (not shown).
Next, as shown in FIG. 7, the floor panel 6 is turned over from the state shown in FIG. 6, and punched into the portion of the surface material 5 facing the round hole 9 of the floor panel 6 by a punch that descends in the direction of arrow P. Press work.
[0016]
That is, as shown in FIG. 8, the punch 15 having a slightly smaller diameter than the round hole 9 descends through the round hole 9 and fits into the blade mold hole 17 a of the die 17, so that the punch 15 removes the surface material 5. The hole 8 can be punched out.
[0017]
Further, in the present embodiment, as shown in FIG. 8, a concave R-shaped raised portion 17 b is formed on the peripheral portion of the blade mold hole 17 a of the die 17 so that the height increases in a concave R shape as the punch 15 is approached. Is formed. Strictly, as shown in FIG. 10, an annular flat surface portion 17 c is provided at the upper end portion of the concave R-shaped ridge portion 17 b in order to maintain the strength of the blade die 17 d formed along the blade die hole 17 a of the die 17. Is formed. For this reason, the annular flat surface portion 5b is also formed between the convex R-shaped surface 5a of the surface material 5 and the hole 8, but this does not cause any problem.
[0018]
According to the present embodiment, since the holes 8 and 9 are formed by punching and pressing the floor panel 6 and the surface material 5, the drilling time is longer than when drilling. It can be shortened. In addition, since the punch 15 is formed by punching the surface material 5 through the hole 9 of the floor panel 6 opened in front of the punch 15 to form a large number of holes 8, 9, It is possible to prevent the staggered deviation between the hole 9 and the hole 8 of the surface material 5.
[0019]
Further, as shown in FIG. 10, the die 17 having the blade die hole 17 a into which the punch 15 is fitted to perform the punching process has a height that increases as the peripheral portion of the blade die hole 17 a approaches the punch 15. Since the concave R-shaped raised portion 17b is formed, it is possible to prevent burrs and omissions from occurring in the peripheral portion of the hole 8 formed in the surface material 5.
[0020]
For this reason, when the floor panel 6 having a large number of holes 8 and 9 is turned over from the state shown in FIG. Since the convex R-shaped surface 5a is formed on the part, for example, the back of the shoe is prevented from being scraped off by the corners of the holes 8 or the corners of the holes 8 being lost to prevent dust from being generated. Can do.
[0021]
Further, according to the present embodiment, the punch hole 15 is lowered from the back side of the floor panel 6 and punched and pressed into the round hole 9 of the floor panel 6 and the hole 8 of the surface material 5 as shown in FIG. Since the die 17 does not interfere with the ribs 10 and 11, the degree of freedom in layout of the holes 8 and 9 can be improved.
[0022]
In the above embodiment, aluminum is used as the material of the floor panel 6, but other metals such as steel may be used. Further, the surface material 5 is made of a plastic material such as a carpet that can be punched by the punch 15 and can be pressed against the concave R-shaped raised portion 17b of the die 17 to form the convex R-shaped surface 5a. Any material other than carpet may be used as long as it is present.
[0023]
Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and various other modifications can be made based on the technical idea of the present invention. It is possible.
[0024]
【The invention's effect】
As described above, according to the floor panel and the manufacturing method thereof of the present invention, a large number of holes can be formed simultaneously by pressing the floor panel and the surface material. Also, the drilling time can be shortened. In addition, since the hole is made in the surface material through the hole in the floor panel that was punched before that, it is possible to prevent the occurrence of staggered displacement between the hole in the floor panel and the hole in the surface material. it can.
[0025]
Further, a die having a blade die hole that is fitted with a punch and performs punching press processing is formed with a raised portion that increases in height as the punch approaches the peripheral portion of the blade die hole of this die. Therefore, it is possible to prevent burrs and omissions from occurring in the peripheral portion of the hole formed in the surface material.
[Brief description of the drawings]
FIG. 1 is a top view showing a floor panel after casting used in an embodiment of the present invention.
FIG. 2 is an enlarged partial cross-sectional view of the floor panel shown in FIG.
FIG. 3 is a top view of a floor panel having a large number of round holes.
4 is an enlarged view of a round hole in a circle D of the floor panel of FIG. 3;
5 is a cross-sectional view of the floor panel of FIG. 4 taken along line AA.
6 is a cross-sectional view showing a state in which a surface material is bonded to the surface of the floor panel of FIG. 5;
FIG. 7 is a cross-sectional view showing a state in which the floor panel is turned upside down in order to make a hole in the surface material.
FIG. 8 is a cross-sectional view showing a state when a hole is made in a surface material using a punch and a die.
FIG. 9 is a cross-sectional view showing a floor panel in a state where holes are made in a surface material.
FIG. 10 is an enlarged cross-sectional view showing a concave R-shaped raised portion, an annular flat surface portion, and a blade shape at a peripheral portion of a die blade mold hole;
[Explanation of symbols]
5 Surface material 5a Convex R-shaped surface 5b Annular plane part 6 Floor panel 8 Hole 9 Round holes 10, 11 Rib 15 Punch 17 Die 17a Blade type hole 17b Concave R-shaped raised part 17c Annular plane part 17d Blade type D Circle P Arrow

Claims (2)

In a metal floor panel in which a surface material of a different material is bonded to the surface provided with a hole,
A hole in the surface material is provided by press working using a punch passing in front Kiana of the floor panel,
In the pressing process, a die having a concave R-shaped bulging portion in which the height of the upper surface becomes higher along the concave R-shaped curved surface as the punch approaches the peripheral portion of the blade mold hole into which the punch is fitted. ,
A floor panel characterized in that a punch is lowered from the back surface side of the floor panel to which the surface material is bonded and press working is performed, and a peripheral portion of a hole provided in the surface material is formed in a curved shape . A surface panel is bonded to the surface of a metal floor panel, and a method for producing a floor panel having holes,
Adhering different surface materials to the surface of the metal floor panel with holes,
A hole is provided in the surface material by pressing using a punch that passes through the hole in the floor panel ,
In the press work, using a die having a concave R-shaped raised portion such that the height of the upper surface becomes higher along the concave R-shaped curved surface as the punch approaches the peripheral portion of the blade mold hole into which the punch is fitted,
A method for manufacturing a floor panel, comprising performing punching by lowering a punch from a rear surface side of the floor panel to which the surface material is bonded, and forming a peripheral portion of a hole provided in the surface material in a curved shape .

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