JPH08336826A - Hole-making apparatus - Google Patents

Abstract

PURPOSE: To provide a hole-making apparatus by means of which a plurality of holes can be made in a short time without giving a large trouble to users of a building caused by a hitting sound and a hitting vibration. CONSTITUTION: A supporting plate 3 is arranged on the floor 2 of a basket of an elevator and a suction fixing device 5 is fixed on this supporting plate 3 and the second supporting pole 8 which is movable in the axial direction of the first supporting pole 6 and movably crosses this first supporting pole 6 toward the face 7a to be perforated of the inner wall 7 of an elevator tower, is supported on the first supporting pole 6 stood on the suction fixing device 5. At the same time, a core drill device 9 is mounted movably on the second supporting pole 8 in its axial direction so as to easily form a plurality of holes by operating the elevator and changing the position of the core drill apparatus 9 to the first supporting pole 6 and the second supporting pole 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching device, and more particularly,
The present invention relates to a punching device suitable for punching a concrete structure.

[0002]

2. Description of the Related Art A conventional drilling device used for drilling a concrete structure is, as described on page 51 of "Practical Manual for Electrical Works" issued by Ohm Co. in January 1989, a concrete surface by hitting and rotating. Electric hammer drills that perform the processing of "Building Technology" VOL. 4, NO. 264 of 264-26
Core drilling devices such as those described on page 7 are known.

[0003]

However, since the conventional electric hammer drill processes concrete by striking and rotating, it produces an unpleasant striking sound and striking vibration. For example, elevator repair work in a building under business. When it is used for drilling a roll plug hammer in the elevator tower, it causes a great deal of inconvenience to building users, and sometimes the elevator repair work cannot be performed. Further, the core drill device has no impact sound or impact vibration, but it takes time to install the device, so that it is possible to move a plurality of holes in a wide range in a short time over a rough surface to be perforated such as in an elevator tower. Was not suitable for.

An object of the present invention is to provide a punching device capable of punching a plurality of holes in a short time without causing a great noise to a building user due to a hitting sound or a hitting vibration.

[0005]

In order to achieve the above object, the present invention relates to a drilling device which supports a core drilling device for processing a concrete surface, and a suction fixing device fixed to a floor surface and the suction fixing device. A first strut erected on the device and a second strut movably supported in the axial direction of the first strut and movably supported at a supporting position in a direction intersecting with the first strut are provided. The core drill device is supported so as to be movable in the axial direction of the second support.

[0006]

In the drilling device according to the present invention, the core drill device can be moved along the first support post and the second support post in a state where the core fixing device is moved and fixed by the suction fixing device as described above. The drilling work can be performed without causing any trouble to the building user due to the impact sound or impact vibration. In addition, by arranging this drilling device on the floor of the car of the elevator and performing the lifting operation of the elevator and the operation of moving the core drill device, drilling work is performed over multiple floors, such as drilling a roll plug hammer in the elevator tower. It can be done easily.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a punching device according to an embodiment of the present invention. An elevator tower inner wall 7 has an opening 7b corresponding to an elevator doorway for each floor of a building, and an entrance sill continuous to the opening 7b. There is a concrete carry-out portion 7c for installing the above, and this concrete carry-out portion 7c projects toward the inside of the tower toward the elevator car to the extent that it does not contact the car. The existing elevator car floor 2 is held by the elevator car front pillar 1 and other members (not shown) and can be raised and lowered within the elevator tower with specified dimensional accuracy, but the car side plate is removed for repair. It is in. A flat support plate 3 is provided on the car floor 2a of the car floor 2.
And a suction-fixing device 5 installed on the support plate 3.
Is evacuated by a vacuum pump 27 through a vacuum hose 28 connected to a connection port 29, and is vacuum-adsorbed and fixed to the support plate 3. A substantially vertical first support column 6 is erected on the suction-fixing device 5, and a movable body 12 is fitted to the first support column 6 so as to be movable in the axial direction thereof. The connection between the columns 6 can be released by operating the handle 11, and the movable body 12 can be moved in the axial direction of the first column 6, and the movable body 12 is connected and fixed to the first column 6 again by operating the handle 11. be able to.

Further, the perforated surface 7a of the elevator tower inner wall 7
The second column 8 extending substantially horizontally toward the movable body 12
It is fitted and fixed to the horizontal movable receiving portion 13 which is integrated with the above. By operating the handle 13a provided on this horizontal movable receiving portion 13, the two are released from the fixed state and the second support column 8 is moved in the axial direction. It can be moved and handle 13a again
The second support 8 can be fixed to the horizontally movable receiving portion 13 and the movable body 12 by the operation of. A movable body 15 that is movable in the axial direction is connected to the second support column 8. The movable body 15 is selected by the operation of the handle 14 between the axially movable state of the second support column 8 and the fixed connection state. Can be taken as a target. The movable body 15 supports the core drill device 9, and the drive shaft 21 of the core drill device 9 has a core bit 10 such as a diamond core bit.
Is attached, and the tip end portion 10a of the core bit 10 can be brought into contact with the surface to be drilled 7a by the movement of the second support column 8 in the axial direction and the movement of the core drill device 9 along the second support column 8. Cooling water is supplied from the water supply pump 19 to the tip portion 10a of the core bit 10 through the water supply hose 20, and the cooling water that has contributed to the cooling is collected and discarded by a collecting device (not shown).

FIG. 2 is a plan view showing a state where the second support is removed from the above-mentioned punching device, and FIGS. 3, 4 and 5 are shown.
FIG. 4A is a plan view, a side view, and a rear view of a suction fixing device that is a main part thereof. The adsorption fixing device 5 includes an adsorbent 24, a mounting table 25 attached to the upper surface of the adsorbent 24, and an annular adsorption packing 26 attached to the lower surface of the adsorption body 24, and is surrounded by the adsorption packing 26. Area 3
0 is evacuated by a vacuum pump through the connection port 29 to obtain a vacuum suction force. Further, the mounting table 25 has the first support column 6, and the bolt 24a provided on the upper surface of the adsorbent 24 is passed through the elliptical hole 25a and is tightened and fixed by a nut (not shown).

If the floor 2 on which the punching device is installed has sufficient strength and the surface of the floor 2a is dense and smooth enough to prevent vacuum leakage due to vacuum adsorption, the support plate 3 is not used. The suction fixing device 5 is attached to the floor surface 2a by the vacuum pump 27.
Can be directly fixed by vacuum adsorption. However, when the strength of the car floor 2 where the perforation device is installed is insufficient, or when the surface of the car floor surface 2a is rough or not smooth enough to cause vacuum leakage due to vacuum adsorption, the car floor surface 2a
The support plate 3 is installed on the support plate 3, the suction fixing device 5 is arranged on the support plate 3, and the vacuum pump 27 is operated to evacuate the region 30 divided by the suction packing 26 to support the suction fixing device 5. It is adsorbed and fixed to the plate 3. By using the support plate 3 in this manner, the suction fixing device 5 can be fixed to the car floor 2 regardless of the condition of the car floor 2a. After that, the mounting table 25 to which the first support column 6 is fixed in advance is arranged on the adsorption fixing device 5, and the screw 24a integrally provided on the adsorbent 24 is passed through the elliptical hole 25a of the mounting table 25 to penetrate therethrough. The nut 31 shown in FIG. 1 is attached to the threaded screw 24a.
Are screwed and tightened to fix the suction fixing device 5 and the mounting table 25. At this time, the movable body 12 may be attached to the first support 6 in advance, or may be attached to the first support 6 after the first support 6 is fixed to the mounting table 25. afterwards,
The second support 8 is attached to the movable receiving portion 13 provided integrally with the movable body 12.
, And tighten the handle 13a to attach it.
The core drill device 9 may be attached to the second support column 8 in advance, or may be attached to the second support column 8 after the second support column 8 is fitted into the movable receiving portion 13.

In this way, the core drill device 9 is shown in FIG.
After installing on the floor surface 2a of the car as shown in
1 to determine the height of the second strut 8 from the car floor surface 2a, and to operate the handle 11 again to move the movable body 1 to the first strut 6.
Fix 2 After that, the handle 14 is operated and fixed so that the distance L between the tip 8a of the second support and the one end 15a of the movable body 15 is substantially equal to the depth of the hole to be drilled, that is, the pushing depth of the core bit 10, This time handle 13a
Is operated to move the second column 8 to which the core drill device 9 is attached toward the perforated surface 7a of the inner wall 7 of the elevator tower, and the tip portion 10a of the core bit 10 is moved to the perforated surface 7a.
Just before the contact with, the handle 13a is operated to fix the second support column 8 to the movable receiving portion 13. Thereafter, while rotating the core bit 10, the handle 14 is operated to move the core drill device 9 toward the surface 7a to be drilled and moved in the axial direction of the second support column 8 to move the core bit 10 to a predetermined drilling depth L1.
When driven in only, a first hole having a predetermined depth is formed in the wall 7. Then, by operating the handle 14, the core bit 10
The tip end portion 10a is returned to the outside of the perforated surface of the wall 7 to stop the energization of the core drill device 9 and stop the rotation.

Further, when it is desired to open a second hole below the first hole, the suction fixing of the suction fixing device 5 to the support plate 3 is released or the position of the suction fixing device is changed. Without evacuating again, the handle 11 is operated to lower the movable body 12 toward the car floor surface 2a in the axial direction of the first support column 6 by a necessary amount, and the handle 11 is operated again to move to the first support column 12. It suffices to fix the movable body 12 and repeat the above-mentioned operation to make a hole. Further, when it is desired to open a third hole above the concrete carry-out portion 7c, the handle 13a is operated to move the second support 8 by at least the dimension L2 to the right in FIG. When the elevator 8 is operated to raise the car floor 2 after the tips 8a of the two columns 8 are retracted from the concrete carry-out portion 7c, the core bit tip portion 10a and the tip 8a of the second column 8 collide with the concrete carry-out portion 7c. Then, the handle 13a is operated again at a required position to show the positional relationship between the core bit tip portion 10a or the tip 8a of the second support 8 and the surface to be perforated 7a in FIG. After such a state, the handle 13a is tightened to fix the second support column 8 to the movable receiving portion 13. Subsequent drilling work is performed by repeating the above-described drilling work.
Also in the drilling work of the third hole, it is not necessary to release the suction fixing of the suction fixing device 5 to the support plate 3 or change the position of the suction fixing device 5 to perform vacuuming again, and the handle 13
The work is easy because only the operation of a and the operation of raising the elevator are required. The position of the concrete carry-out portion 7c from the upper position to the lower position can be similarly moved.

In the elevator renovation work, the hole drilling work of the roll plug anchor in the elevator tower is to form a mounting hole such as a door pocket at a position above the elevator doorway on each floor of the building. Since the left and right positions are the same even if the upper and lower positions on the floor are different, there is no need to release the suction fixing of the suction fixing device 5 to the support plate 3 or change the position of the suction fixing device and vacuum again. It is possible to efficiently make holes in each floor located on the upper and lower straight lines while moving the position only by operating the handle 13a and raising and lowering the elevator. Further, similar to the concrete carry-out portion 7c, the same operation can be performed even when there is another member protruding into the tower.

Although the present embodiment has been described with reference to an example applied to an elevator, the present invention is not limited to this, and a working device that moves along the outer wall of a building, for example, is installed in the horizontal part of a gondola. However, according to this configuration, it is possible to carry out the drilling work for the outer wall of the building or the like. Such a configuration corresponds to the invention according to claims 3 and 4 of the present invention.

[0015]

As described above, in the punching device according to the present invention, the first supporting column is supported and fixed by the vacuum fixing device, is supported by the first supporting column so as to be movable in the axial direction thereof, and intersects with the first supporting column. A second support column whose support position is movably supported in the direction, and the core drill device is supported so as to be movable in the axial direction of the second support column, so that the first support column and the By changing the position of the core drilling device with respect to the second support, a plurality of holes can be drilled in a short time, and the drilling work can be performed without causing a great trouble to the building user due to the impact sound and impact vibration.

[Brief description of drawings]

FIG. 1 is a side view of a punching device according to an embodiment of the present invention.

FIG. 2 is a plan view showing a state in which a second support is removed from the punching device shown in FIG.

FIG. 3 is a plan view of a suction fixing device which is a main part of the punching device shown in FIG.

4 is a side view of the suction fixing device shown in FIG.

5 is a back view of the suction-fixing device shown in FIG.

[Explanation of symbols]

 2 Car floor 3 Support plate 5 Adsorption fixing device 6 First strut 7 Elevator tower inner wall 8 Second strut 9 Core drill device 10 Core bit 12, 15 Movable body

Claims (4)

[Claims] 1. A drilling device supporting a core drilling device for machining a concrete surface, a suction fixing device fixed to a floor surface, a first support column standing upright on the suction fixing device, and the first support column. A second strut is provided that is movably supported in the axial direction and is movably supported at a support position in a direction intersecting with the first strut, and the core drill device is movably supported in the axial direction of the second strut. A punching device characterized in that 2. The core drill device according to claim 1, wherein the first support column is erected substantially vertically with respect to the suction fixing device and fixed, and the second support column is extended substantially horizontally. A perforating device having a diamond core bit as the core. 3. A drilling device supporting a core drilling device for working a concrete surface, wherein a suction fixing device fixed to a horizontal portion of a working device that moves along a wall surface of a building and a suction fixing device substantially perpendicular to the suction fixing device. And a second strut that is movably supported in the axial direction of the first strut and that is movably supported at a support position in a substantially horizontal direction that intersects the first strut, A perforating device, wherein the core drill device is supported so as to be movable in the axial direction of the second support. 4. The punching device according to claim 3, wherein a flat support plate is attached to a horizontal portion of the working device, and the suction fixing device is supported on the support plate.