JP2851690B2 - Bolt hole processing device for panels with inorganic surface materials - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for processing a bolt hole on an inorganic surface material-attached panel for processing a bolt hole for bolting work on the surface of the inorganic surface material-attached panel. It is.

[Prior Art] In recent years, as the prefabrication of members forming a skeleton has progressed, panels constituting walls, partitions, etc. have been installed at least at one surface of a frame body previously formed into a rectangular outline at a factory. A method has been conceived in which an inorganic surface material as a base is pasted, and these are joined on site to form a frame.

When such an inorganic surface material-attached panel is disposed on a foundation structure to form a first floor wall, anchor bolts projecting from the upper end surface of the foundation structure are attached to the inorganic surface material-attached panel. The panel is fixed to the substructure by inserting and fastening the ends of anchor bolts with nuts inside the panel. In addition, this panel with an inorganic surface material is
When the second floor wall is formed on the floor, the body difference bolt is inserted into the lower end of the second floor wall through the second floor from the upper end of the first floor wall. Each member is assembled by tightening both ends with nuts inside the respective panels forming the first-floor wall and the second-floor wall.

As described above, when the panel with an inorganic surface material is used as a wall of a frame, fastening work of an anchor bolt or a body difference bolt must be performed inside the panel. It is necessary to form bolt holes for bolt fastening work in advance on the surface near the lower end or the upper end of the panel.

However, by forming such bolt holes on the surface of the panel with the inorganic surface material attached, it is necessary to close the bolt holes again after the fastening work of the anchor bolt or the body difference bolt is completed, which increases man-hours and labor. I was dissatisfied with this. In particular, in order to close the bolt holes, it is necessary to separately prepare a lid for that, and there is a problem that the cost is increased. Furthermore, considering that the surface of the panel with the inorganic surface material is finally subjected to interior finishing such as cloth bonding, the surface of the panel with the inorganic surface material and the surface of the lid are kept flush. However, there was also a complaint that it was difficult to position and fix the lid.

Therefore, there has been proposed a method of processing the bolt hole 2 such that the bolt hole 2 is formed on the surface of the inorganic surface material-attached panel 1, and at the same time, the lid 3 that closes the bolt hole 2 can also be produced. No. 2-137646.

This method uses a router 4 having a substantially cone-shaped rotary blade 4a as shown in FIGS. 6 to 8, for example.
In this method, the outer shape of the bolt hole 2 is cut into an isosceles triangle with the bottom side 2a directed toward the lower end or the upper end.

According to this method, since the outer shape of the bolt hole 2 is an isosceles triangle, the cut inorganic material is turned over and the lid 3 is turned over.
If used, the upper portion including the apex of the bolt hole 2 can be closed by the lid 3. In addition, since the router 4 is used, its cut surface is formed as an inclined surface gradually narrowing from the surface of the inorganic surface material-attached panel 1 toward the inside, so that the bolt holes 2 are closed by the lid 3. After that, the surface is kept flush.

[Problem to be Solved by the Invention] However, the method using the router 4 as described above still has the following disadvantages.

That is, when the router 4 has the conical rotary blade 4a and cuts the inorganic surface material with the rotary blade 4a, when the cut inorganic surface material is used as the lid 3, the bolt hole 2 The point is that a considerable difference occurs between the size and the size of the lid 3. Therefore, as shown in FIG. 8, the upper portion including the apex portion of the bolt hole 2 is closed by the lid 3, but the lower portion of the bolt hole 2 remains open without being closed. .

By the way, this bolt hole 2 is attached to the inorganic surface material pasted panel 1
When it is formed on the surface near the lower end and used for fastening an anchor bolt, a baseboard may be applied to the lower part of the bolt hole 2 to close this open portion. The hole 2 is formed on the panel 1 with the inorganic surface material
In the case where it is formed on the surface near the upper end and is used for fastening the body difference bolt, the baseboard cannot be used.

However, if a part of the bolt hole 2 for fastening the body difference bolt provided on the surface near the upper end of the inorganic surface material pasted panel 1 is left open in this way, fire protection is reduced. Very inconvenient in point. That is, for example, when a fire occurs, there is a possibility that the inorganic surface material-attached panel 1 does not necessarily hinder the tour of the fire.

The present invention has been made in view of the above circumstances,
A bolt hole processing apparatus for an inorganic surface material-attached panel capable of producing a lid for closing the bolt hole simultaneously with the processing of the bolt hole and producing a lid capable of closing the opening of the bolt hole to the maximum. It is intended to provide.

Means for Solving the Problems The present invention is directed to an isosceles triangular bolt tightening operation on the surface near the lower end or the upper end of the panel with an inorganic surface material attached, with the bottom side facing the lower end or the upper end, respectively. A bolt hole machining apparatus for machining a bolt hole, wherein two opposed sides of the bolt hole are gradually reduced in width from the surface of the inorganic surface material bonded panel toward the inside. First and second cutting machines having a rotating thin blade for cutting out with an inclination angle such that the bottom of the bolt hole is vertically pressed and cut from the surface of the panel with inorganic surface material to the inside. A solution is provided with a third cutting machine having a push-cut thin blade.

[Operation] According to the apparatus for boring a hole of an inorganic surface material-attached panel of the present invention, the first and second cutting machines having a rotating thin blade for cutting out at a predetermined inclination angle, and the press-cutting for vertical press-cutting Since a third cutting machine having a thin blade is provided, the oblique side is cut out by the first and second cutting machines and the bottom is cut off by the third cutting machine. Since a bolt hole is formed,
The cut inorganic surface material can be used as a lid for closing the bolt hole as it is.

Further, since the first to third cutting machines all have thin blades, the two oblique sides and the bottom side of the bolt hole are each formed with a cutting groove having a small width.
Therefore, when the bolt hole is closed by the cut-out inorganic surface material, the gap formed between the two is small, and almost the entire opening of the bolt hole can be closed.

Further, according to the first and second cutting machines, the two oblique sides of the bolt hole gradually narrow the facing distance between the oblique sides from the surface of the inorganic surface material-attached panel toward the inside. Since the cutout is made with an inclined angle, if the bolt hole is closed by the cut-out inorganic surface material (lid), the surface of this lid must be kept flush with the surface of the inorganic surface material-attached panel Is done.

EXAMPLES Hereinafter, the present invention will be described based on the drawings with reference to examples.

FIG. 1 shows an embodiment of a bolt hole drilling apparatus 10 for an inorganic surface material bonded panel according to the present invention.
And the third cutting machine 13.

The first cutting machine 11 controls a rotary thin blade 11a in the form of a circular thin plate that cuts out the hypotenuse portion 23b of the bolt hole 23, a driving device 11b that controls the rotational operation of the rotary thin blade 11a, and controls the vertical movement of the rotary thin blade 11a. A vertical movement mechanism 11c such as an air cylinder is provided. Further, the first cutting machine 11 is provided with the rotary thin blade 11a.
However, they are arranged obliquely so as to hit the surface of the inorganic surface material bonded panel 20 from the outside to the inside of the bolt hole 23 with a predetermined inclination angle.

Similarly to the first cutting machine 11, the second cutting machine 12 also controls a circular thin plate-shaped rotary thin blade 12a for cutting out another oblique side 23c of the bolt hole 23, and controls the rotating operation of the rotary thin blade 12a. A drive device 12b and a vertical movement mechanism 12c such as an air cylinder for controlling the vertical movement of the rotary thin blade 12a are provided at a predetermined position near the oblique side 23c of the bolt hole 23 on the surface of the inorganic surface material pasting panel 20. Are located.

The third cutting machine 13 includes a pushing thin blade 13a for pushing the bottom 23a of the bolt hole 23, and a vertical moving mechanism 13b such as an air cylinder for controlling the vertical movement of the pushing thin blade 13a. Further, the third cutting machine 13 has a horizontal movement mechanism that enables the horizontal movement of the bolts 23 when approaching or away from the bottom 23a substantially along the surface of the inorganic surface material pasting panel 20.
13c is provided.

Next, an example of a method of forming the bolt holes 23 on the surface of the inorganic surface material-attached panel 20 using the bolt hole processing apparatus 10 of the present embodiment will be described with reference to FIGS. In this example, as shown in FIG. 5, a bolt hole 23 for fastening an anchor bolt is provided on the surface near the lower end of the panel 20 with an inorganic surface material, and a body difference bolt is provided on the surface near the upper end. A method for forming the bolt holes 23 for the fastening operation will be described as an example.

Here, the inorganic surface material-attached panel 20 has a configuration in which the inorganic surface materials 22, 22 are attached to the surface of a frame 21 formed into a rectangular outline by the core material 21a.

First, a bolt hole 23 for fastening an isosceles triangular anchor bolt with its bottom 23a facing downward is formed at a predetermined position near the lower end of the inorganic surface material bonded panel 20.

When forming the bolt holes 23, first, as shown in FIGS. 2 and 3,
Using the first cutting machine 11, the oblique side 23b of the bolt hole 23
Cut out the part that will be. At this time, the third cutting machine
13 is moved horizontally to a position away from the position where the bolt holes 23 are formed, so that the rotating thin blade 11a of the first cutting machine 11 and the pushing thin blade 13a of the third cutting machine 13 do not conflict with each other.

The rotating thin blade 11a of the first cutting machine 11 is lowered by the vertical movement mechanism 11c until it comes into contact with the surface of the inorganic surface material bonded panel 20 while being rotated by the driving device 11b. Further, this operation is continued until the inorganic face material 22 is cut obliquely at a predetermined inclination angle in the thickness direction to form one oblique side 23b of the bolt hole 23.

Next, another oblique side portion 23c of the bolt hole 23 is similarly formed by the second cutting machine 12.

Next, the rotating thin blades 11 of the first and second cutting machines 11 and 12 are used.
With the a and 12a moved above the surface of the inorganic surface material pasting panel 20 and stopped, the third cutting machine 13 is horizontally moved along the surface of the inorganic surface material pasting panel 20 to form the bolt hole 23 forming position. Approach. Then, the push-off thin blade 13a is vertically pushed down from above to a position to be the bottom side 23a of the bolt hole 23, and the portion of the inorganic surface material bonded panel 20 is pushed off in the thickness direction.

In this manner, the three sides 23a, 23b, 23c are cut out to form a bolt hole 23 for a target anchor bolt fastening operation.

Next, a bolt hole 23 for a body difference bolt fastening operation is formed on a surface at a predetermined position near the upper end portion of the inorganic surface material bonded panel 20. The formation of the bolt hole 23 is performed in accordance with the same procedure as that for the bolt hole 23 for fastening the anchor bolt.
The base 23a is formed in an isosceles inverted triangle shape with the upper side facing upward.

In this manner, an inorganic surface material having a bolt hole 23 for fastening an anchor bolt on the surface near the lower end and a bolt hole 23 for fastening a body difference bolt on the surface near the upper end is attached. Panel 20 is used as a foundation for building construction 25
It is arranged above.

Anchor bolt 26 protruding from the upper end surface of foundation structure 25
Is inserted from the lower end surface of the inorganic surface material-attached panel 20. Then, an appropriate jig such as a ratchet wrench is introduced from the previously provided anchor bolt fastening bolt hole 23, and the tip of the anchor bolt 26 is fastened with the nut 27. 20 is firmly fixed to the foundation structure 25.

Next, two more sheets are placed on the inorganic surface material-attached panel 20.
The floor panel 28 and the second floor wall panel 29 are placed in order.

The upper core material of the first-floor wall composed of the inorganic surface material-attached panel 20
The body difference bolt 30 is inserted from 21a through the core of the second floor panel 28 toward the lower core of the second floor panel 29. And the bolt holes for the body difference bolt fastening work provided earlier
From 23, using a jig such as a ratchet wrench,
Nut 31 is screwed into the lower end of 30 and tightened. Similarly, the upper end of the shoulder bolt 30 is tightened with a nut 32 inside the second-floor wall panel 29.
0, the second floor panel 28 and the second floor wall panel 29 are assembled to each other.

Thus, the anchor bolt 26 and the body difference bolt
After fastening work of 30 is completed, each bolt hole 23,23
Close up.

When closing the bolt hole 23, the inorganic face material cut out when forming the bolt hole 23 is used as it is as the lid 24,
As shown in FIG. 4, the bolt hole 23 is fitted to the upper or lower portion including the apex of the bolt hole while pressing the same, and the outer peripheral surface of the bolt hole 23 (cutting surface) and the outer peripheral surface of the lid 24 (cutting surface) are cut. Surfaces) are bonded to each other by adhesion or the like.

As described above, according to the apparatus 10 for boring holes of a panel with an inorganic surface material according to the present embodiment, the first and second cutting machines having the rotating thin blades 11a and 12a for cutting out with a predetermined inclination angle. By cutting out the two oblique sides 23b, 23c by means of 11, 12 and then cutting off the bottom side 23a by means of a third cutting machine 13 having a press-cutting thin blade 13a which presses and cuts vertically, easily and accurately, An isosceles triangular bolt hole 23 can be formed. Further, the inorganic surface material 22 cut out at the same time as the formation of the bolt hole 23 can be used as a lid 24 for closing the bolt hole 23 without being turned over. Therefore, there is no need to prepare the lid 24 again, and the number of steps is reduced to simplify the work and save labor.
Work costs can be reduced.

Further, since the first to third cutting machines 11, 12, and 13 each have the thin blades 11a, 12a, and 13a, the two oblique sides 23b and 23c and the bottom side 23a of the bolt hole 23 are Each is formed with a small width cutting groove. Therefore, when the cut inorganic surface material 22 is fitted to the bolt hole 23 so as to be pressed against the upper or lower portion including the apex portion of the bolt hole 23, a gap formed between the bottom portions of the two is small. It is possible to close almost the entire opening of the bolt hole 23. Therefore, it is not necessary to cover the gap with the baseboard, which is very convenient. In particular, in the case of the bolt hole 23 for fastening the body difference bolt provided on the surface near the upper end portion of the inorganic surface material bonded panel 20, since this gap is very small, the merit in fire prevention is great. That is, when a fire occurs, it is possible to hinder the circulation of the fire and delay the burning of the building.

Also, according to the first and second cutting machines 11 and 12, the two oblique sides 23b and 23c of the bolt hole 23 are fixed to the inorganic surface material bonded panel 2.
It is cut out with an inclination angle that gradually narrows the facing distance between the two oblique sides from the surface of 0 to the inside, so the bolt holes are cut by the cut inorganic surface material (lid 24).
When closing the cover 23, the surface of the lid 24 can be reliably and very easily made flush with the surface of the panel 20 with an inorganic surface material. Further, even if any external force is applied after the lid is closed, no trouble occurs such that the lid 24 falls into the bolt hole 23. Therefore, the lid 24 and the surface of the inorganic surface material-attached panel 20 are always kept at the same level, and even when the surface of the inorganic surface material-attached panel 20 is subjected to interior finishing treatment such as cross-attachment, wrinkles and steps may occur. A smooth interior surface is maintained and a beautiful interior surface is realized.

Further, in the bolt hole drilling apparatus 10 of the present embodiment, the first and second cutting machines 11 and 12 are respectively provided with the vertical movement mechanisms 11c and 1c.
2c, and the third cutting machine 13 is provided with a horizontal movement mechanism 13c, and during the operation of each cutting machine 11, 12, 13,
Since it is considered that the position can be shifted so that it does not conflict with the other cutting machines 11, 12, 13 with each other,
The operability is good and the danger at the time of operation is small.

In addition, the bolt hole processing apparatus of the inorganic surface material pasted panel of the present invention is not limited to the above embodiment, and specific configuration requirements such as the shape and dimensions of each member can be appropriately changed upon implementation. is there.

For example, in the above-described embodiment, a bolt hole 23 for fastening an anchor bolt is provided on the surface near the lower end of the inorganic surface material-attached panel 20, and a bolt hole 23 for connecting a body difference bolt is provided on the surface near the upper end. However, in addition to the above, both the surface near the upper end portion and the surface near the lower end portion are used as an inorganic surface material-attached panel used for, for example, a wall panel on the second floor or higher. The present invention can also be applied to a case where a bolt hole for a body difference bolt fastening operation is formed in the body.

[Effects of the Invention] As described above, according to the apparatus for boring holes for an inorganic surface material-attached panel of the present invention, the first and second cutters cut out the oblique side, and the third cutter removes the base. If the portion is pushed out, it is possible to very easily form an isosceles triangular bolt hole. In addition, the inorganic surface material cut off at the same time as the formation of the bolt hole can be used as a cover for closing the bolt hole as it is. Therefore, it is not necessary to prepare a lid again, so that the operation can be simplified and labor can be saved, and the cost can be reduced.

Further, since the first to third cutters each have a thin blade, the two oblique sides and the bottom side of the bolt hole are:
Each is formed with a small width cutting groove. Therefore, when the bolt hole is closed by the cut-out inorganic surface material, the gap formed between the two is small, and almost the entire opening of the bolt hole can be closed.

Therefore, particularly when provided on the surface near the upper end portion of the inorganic surface material pasted panel and used as a bolt hole for fastening a body difference bolt, excellent fire protection performance is exhibited because this gap is very small. be able to.

According to the first and second cutting machines, the two oblique sides of the bolt holes are inclined so as to gradually reduce the facing distance between the oblique sides from the surface of the panel with the inorganic surface material to the inside. Since it is cut out with a corner, if the bolt hole is closed by the cut-out inorganic surface material (lid), the surface of this lid must be kept flush with the surface of the panel with the inorganic surface material attached Is done. Therefore, even when an interior finishing process such as a cloth attachment is performed thereon, it is possible to obtain a smooth and beautiful interior surface with no steps.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a bolt hole processing apparatus for an inorganic surface material-attached panel according to the present invention, and FIGS. 2 to 5 are views showing the surface of the inorganic surface material-attached panel using this processing apparatus. FIG. 2 is a cross-sectional view for explaining a working state when cutting an inorganic face material by first and second cutting machines of a processing apparatus, and FIG. 3 is a cut-away view. FIG. 4 is a front view showing a state in which a bolt hole is closed, and FIG. 5 is a view showing a state in which the inorganic floor material-attached panel is fixed on a foundation structure to form a first-floor wall. 6 to 8 are views showing an example of a conventional bolt hole drilling method, FIG. 6 is a sectional view showing an operation state when cutting an inorganic face material, and FIG. FIG. 8 is a cross-sectional view showing the removed inorganic face material, and FIG. 8 is a front view showing a state where the bolt holes are closed. 10 ... Bolt hole processing device, 11 ... First cutting machine, 11a ... Rotating thin blade, 12 ... Second cutting machine, 12a ... Rotating thin blade, 13 ... Third cutting machine, 13a ... Oshikiri thin blade, 20… Inorganic surface material pasted panel, 22 …… Inorganic surface material, 23 …… Bolt hole, 23a …… Bottom side, 23b, 23c …… Slope side, 24 …… Lid, 25 …… Basic construction , 26 ... anchor bolt, 27 ... nut, 30 ... body difference bolt, 31, 32 ... nut.

Claims (1)

(57) [Claims] 1. An isosceles triangular-shaped bolt hole for machining an isosceles triangular shape having a bottom side directed to a lower end side or an upper end side on a surface near a lower end portion or an upper end portion of an inorganic surface material bonded panel. A bolt hole processing device, wherein two oblique sides of a bolt hole are opposed to each other,
First and second cutting machines having rotating thin blades for cutting with an inclination angle such that the width gradually decreases from the surface of the inorganic surface material-attached panel toward the inside, And a third cutting machine having a push-cut thin blade for vertically pushing and cutting from the surface of the face material-attached panel toward the inside thereof.