JP2002316315A - Anchor drilling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an anchor drilling apparatus which enables reduction of a working load, making it unnecessary to take a limited posture, and enables execution of stable and correct drilling. SOLUTION: A main body angle 30 is fitted to a frame 20 so that the lower end thereof is rotatable around a shaft 23a, and a pair of rodless cylinders 41 is fitted to the main body angle 30 oppositely and in parallel, with the vertical direction thereof set along the direction of the length of cylinder parts 42. A drill fitting member 50 is installed between sliding parts of the paired rodless cylinders 41 and a hammer drill 1 is fitted to the drill fitting member 50. A compressor supplying compressed air to the rodless cylinders 41 is fitted to the drill fitting member 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor drilling device for drilling anchor holes for fixing equipment and equipment to a concrete ceiling or floor at a site such as a plant construction work.

[0002]

2. Description of the Related Art FIG. 11 is a view for explaining a drilling operation using a conventional anchor drilling device. In FIG. 11, 1
Is a hammer drill, 2 is a fixed pole, 3 is a fixed pole 2
The hammer drill 1 is attached to the tip of the slide pole 3. Reference numeral 4 denotes a link mechanism which is attached across the fixed pole 2 and the slide pole 3, and reference numeral 5 denotes one end which is attached to the fixed pole 2 and the other end is attached to the link mechanism 4. Reference numeral 6 denotes an operation lever for operating the gas-containing cylinder 5. 7 is a dust-proof cover mounted so as to surround the drill blade 1a of the hammer drill 1, 8 is a stopper,
9 is a concrete ceiling and 10 is a floor surface. Here, the fixed pole 2 and the slide pole 3 are formed in a cylindrical shape, and the root of the dustproof cover 7 communicates with the hollow hole of the slide pole 3. The link mechanism 4 and the gas-filled cylinder 5 constitute a slide mechanism.

[0003] Next, a drilling operation by the above-mentioned conventional anchor drilling device will be described. First, the concrete drilling device is moved to the drilling position on the concrete ceiling 9. When the fastening portion of the link mechanism 4 to the slide pole 3 is loosened and the concrete drilling device is set upright on the floor 10, the tip of the drill blade 1 a is about 3 to 5 cm from the drilling position of the concrete ceiling 9. The slide pole 3 is adjusted to expand and contract so as to be as desired. Then, the fastening portion of the link mechanism 4 to the slide pole 3 is tightened. Further, the stopper 8 is fixed so that the distance between the tip of the stopper 8 and the tip of the drill blade 1a matches the drilling depth.
After this fine adjustment operation is completed, the tip of the drill blade 1a is aligned with the drilling position of the concrete ceiling 9, and the concrete drilling device is set up vertically on the floor surface 10.

Then, the link mechanism 4 is operated by the gas-cylinder cylinder 5 by operating the operation lever 6. Then, the slide pole 3 extends, and the tip of the drill blade 1 a hits the concrete ceiling 9. At this time, the drill blade 1a is pressed against the concrete ceiling 9 with a predetermined pressing force of a slide mechanism including the gas-filled cylinder 5 and the link mechanism 4.

[0005] When the drill 1 is operated, the drill blade 1a rotates and cuts into the concrete ceiling 9 while making a hole by the pressing force of the slide mechanism. When the tip of the stopper 8 comes into contact with the concrete ceiling 9, the drill blade 1 a is prevented from biting into the concrete ceiling 9,
Drilling of a predetermined depth is completed. At the time of drilling, the cutting powder naturally falls from the dustproof cover 7 to the floor via the hollow holes of the slide pole 3 and the fixed pole 2 without being scattered. Thereafter, the operation of the drill 1 is stopped, the operation lever 6 is operated to operate the slide mechanism, and the slide pole 3 is reduced. Then, the anchor drilling device is moved to the next drilling position, and the above procedure is repeated to perform drilling. Then, the anchor is driven into the hole, and the bolt is fastened to the anchor to fix the facility / equipment to the ceiling 9.

[0006]

Since the conventional anchor drilling device is constructed as described above, it can be vertically self-standing between the concrete ceiling 9 and the floor 10 by the pressing force of the slide mechanism. The drill reaction is received on the floor 10 and the operator need only support the concrete drilling device so that it does not fall. However, since the drill reaction force at the time of drilling acts to rotate the hammer drill 1, there has been a problem that the operator must grip the fixed pole 2 with a force exceeding the drill reaction force. Further, the conventional anchor drilling device drills a concrete ceiling 9,
That is, it is suitable for drilling upward, but is difficult to apply to drilling of the floor surface 10 (drilling downward). That is, when applying to the drilling of the floor surface 10 using the conventional anchor drilling device, the anchor drilling device cannot stand on its own, and the operator himself has to bear the pressing force that exceeds the drill reaction force at the time of drilling. Further, there is a problem that the worker himself / herself must maintain the posture of the anchor drilling device, which increases the work load and prevents accurate drilling. In addition, when a worker tries to make a hole in the floor 10 with the hammer drill 1, the worker takes a cramped working posture, so that a long-time drilling operation cannot be performed, and there is a problem that accurate drilling cannot be performed. . Furthermore, since the operator himself bears the pressing force at the time of drilling, there is also a problem that the pressing force is not stable, and stable drilling cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and can significantly reduce the load on an operator without taking a cramped working posture, and can stably and accurately drill holes. The aim is to obtain an anchor drilling device.

[0008]

According to the present invention, there is provided an anchor drilling apparatus comprising: a base on which a side plate is erected; a step plate mounted on the base; a main body angle mounted on the base in an upright state; A piston portion provided with a magnet member slidably housed in the cylinder portion and defining the interior of the cylinder portion as first and second spaces; A rod which is magnetically attracted to the main body angle and has a sliding part which moves in the longitudinal direction of the cylinder part in conjunction with the movement of the piston part, with the longitudinal direction of the cylinder part being the vertical direction A cylinder, a drill mounting member attached to the sliding portion of the rodless cylinder, and moving in the longitudinal direction of the cylinder portion in conjunction with the movement of the sliding portion; A hammer drill attached to the drill attachment member in a longitudinal direction coincident with the length of the drill portion; a compressor attached to the drill attachment member; and compression of the compressor into the first and second spaces in the cylinder portion. And a changeover switch for switching the supply of air.

The lower end of the main body angle is attached to the mount so as to be rotatable about an axis perpendicular to the length direction of the cylinder portion, and an arc hole having an axis centered on the axis is formed in the side plate. The main body angle and the side plate are fastened and fixed by inserting a fastening member through the arc hole.

Further, the axis of the hammer drill crosses the axis of the shaft at right angles.

Further, the drill mounting member is configured to be extendable and contractible in a length direction of the cylinder portion.

The pair of rodless cylinders are attached to the main body angle in parallel with each other with the longitudinal direction of the cylinder portion as the vertical direction, and the drill attachment member is provided with two slides of the pair of rodless cylinders. It is installed on the part.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. 1 and 2 are a front view and a side view, respectively, showing an anchor drilling device according to a first embodiment of the present invention. FIG. 3 is a diagram illustrating the structures of a gantry and a tread plate in the anchor drilling device according to the first embodiment of the present invention. FIG. 4 is a perspective view showing a main body angle in the anchor drilling apparatus according to Embodiment 1 of the present invention, and FIG.
FIG. 6 is a cross-sectional view of a main part illustrating a connection structure between a main body angle and a gantry in the anchor drilling device according to the first embodiment of the present invention. FIG. Perspective view,
FIG. 7 is a cross-sectional view of an essential part for explaining the structure of a rodless cylinder in the anchor drilling device according to the first embodiment of the present invention. FIG. 8 is an operation of the rodless cylinder in the anchor drilling device according to the first embodiment of the present invention. FIG. 9 is a perspective view illustrating the structure of the drill attachment member in the anchor drilling apparatus according to Embodiment 1 of the present invention.

In FIGS. 1 and 2, the anchor drilling device comprises a gantry 20 on which a tread plate 26 on which an operator rests is mounted, and a lower end rotatable on the gantry 20 around a shaft 23a.
And a pair of rodless cylinders 41 attached to the main body angle 30 with the main body angle 30 attached to the gantry 20 in an upright state, the length direction of the cylinder portion 42 as a vertical direction, and relatively parallel to the main body angle 30; The drill mounting member 50 is provided between the sliding portions 46 of the pair of rodless cylinders 41, and the hammer drill 1 and the compressor 58 mounted on the drill mounting member 50.

Here, FIGS. 3 to 9 show the respective constituent members.
This will be specifically described with reference to FIG. As shown in FIG. 3, the gantry 20 is disposed so as to extend upward in parallel with each other on both sides of the base plate 21 formed in a U-shape, and to the base plate 21. And a pair of side plates 22 that are fixedly integrated with each other. Then, a pair of hinges 23 are arranged on the upper surface of the base plate 21 in a row with a predetermined distance between the pair of side plates 22 so that the axes of the shafts 23 a are aligned with each other. It is fixed by welding. The base plate 21 has an opening 21a through which the drill blade 1a passes and an opening 21b through which the stopper 8 passes. Further, a male screw portion 24 protrudes from the outer surface of each side plate 22, and an arc hole 25 having an arc center at the axis of the shaft 23 a of the hinge 23 is formed in each side plate 22. As shown in FIG. 3, the tread plate 26 is formed in an L-shape, and a male screw insertion hole 26a is formed in an upright side thereof. Then, the tread plate 26 is attached to the gantry 20 by passing the male screw portion 24 through the male screw insertion hole 26a, directing the rising side to the outer surface of each side plate 22 and fastening the nut 27 to the male screw portion 24.

As shown in FIG. 4, a main body angle 30 is formed by connecting a pair of L-shaped mounting plates 31 at upper and lower ends thereof by an upper support plate 32 and a lower support plate 33, respectively. Is configured. Further, an L-shaped connecting plate 34 is fixedly integrated with the lower end of each mounting plate 31 by welding. Further, a screw portion 35 to which an angle adjustment fixing bolt 40 to be described later is screwed is fixed so as to face each mounting plate 31, and a rodless cylinder mounting hole 36 is provided.
A hole 37 for inserting an air hose is formed in a predetermined position of each mounting plate 31. This body angle 30 is shown in FIG.
As shown in the figure, the mounting bolt 38 has a hole 23b formed in the other piece of the hinge 23 and a hole 34a formed in the connecting plate 34.
The nut 39 is fastened to the mounting bolt 38 and attached to the gantry 20 so as to be rotatable around the shaft 23a. Then, an angle adjustment fixing bolt 4 as a fastening member
0 is inserted into the circular arc hole 25 of the side plate 22 of the gantry 20 and fastened to the screw portion 35, and the main body angle 30 is fixed to the gantry 20.

As shown in FIGS. 6 and 7, the rodless cylinder 41 has an elongated cylindrical cylinder portion 42 made of a non-magnetic material such as aluminum, and flanges attached to upper and lower ends of the cylinder portion 42. Part 43 and cylinder part 42
The magnet 44 is slidably housed in the inside and defines a first and second space 42a, 42b in the cylinder portion 42, and an O for securing a seal between the magnet 44 and the cylinder portion 42. A ring 45 and a sliding portion 46 slidably fitted to the cylinder portion 42 are provided. The sliding portion 46 is configured such that a ring-shaped magnet 46a is housed in a frame 46b made of a nonmagnetic material such as aluminum. In addition, each flange 43 has a cylinder 4
Air nipples 47a and 47b are provided to communicate the first and second spaces 42a and 42b with the outside. The frame 46b has a mounting screw hole 46c. Similarly, the flange portion 43 is provided with a screw hole (not shown) for mounting. Here, the magnet 44 and the O-ring 45 constitute a piston portion.

The rodless cylinder 41 is addressed to each mounting plate 31, and a mounting screw (not shown) is passed through the hole 36 and fastened to the screw hole of the flange portion 43, so that the body angle 30
Are mounted parallel to each other. Here, the magnet 44 and the magnet 46a are magnetized so that an attractive force acts.

When the changeover switch 61 is switched from the neutral position to the first position, as shown in FIG.
The air is supplied from the third air nipple 47a into the first space 42a of the cylinder portion 42. At this time, since the second space 42b communicates with the outside, the magnet 44 moves downward, and the air in the second space 42b is exhausted. Then, the sliding portion 46 moves downward in conjunction with the movement of the magnet 44. Next, when the changeover switch 61 is switched from the first position to the second position, as shown in FIG.
The air is supplied from the third air nipple 47b into the second space 42b of the cylinder portion 42. At this time, since the first space 42a is communicated with the outside, the magnet 44 moves upward and the air in the first space 42a is exhausted. Then, the sliding portion 46 moves upward in conjunction with the movement of the magnet 44. When the changeover switch 61 is switched to the intermediate position, the communication between the first and second spaces 42a and 42b with the outside is cut off, and the position of the sliding portion 46 is maintained.

As shown in FIG. 9, the drill mounting member 50 includes a main body 51 formed by molding an aluminum plate or the like into a U-shape, and an L-shaped mounting piece 52 mounted on both sides of the main body 51. , A drill mounting bracket 53. Body 5
1 includes a screw hole 51a for mounting a mounting piece, a hole 51b for mounting a drill mounting bracket, and a hole 51c for mounting a compressor.
Are provided at predetermined positions. Drill mounting bracket 5
3 is a flat plate having a drill insertion hole 53a,
A slit 53b is provided to allow communication between the drill insertion hole 53a and the outside, and screw holes 53c and 53d are provided. The mounting piece 52 is attached to both sides of the main body 51 by passing the mounting screw 54 through the hole 52a and fastening to the screw holes 51a provided on both sides of the main body 51. Further, the mounting screw 55 is passed through a hole 52b formed in the mounting piece 52 and fastened to a screw hole 46c provided in the sliding portion 46 of the rodless cylinder 41. To be able to move up and down (reciprocally move in the length direction of the cylinder portion 42).

The tip of the hammer drill 1 is inserted into the drill insertion hole 53a. Then, the mounting bolt 57 is fastened to the screw hole 53c to reduce the interval between the slits 53b,
The drill mounting bracket 53 is fastened and fixed to the hammer drill 1. Further, the mounting bolt 56 is passed through a hole 51 b formed in the main body 51 and fastened to the screw hole 53 d of the drill mounting bracket 53, and the hammer drill 1 is mounted on the drill mounting member 50. At this time, the axis of the drill blade 1a of the hammer drill 1 intersects at right angles with the axis of the shaft 23a and is parallel to the length direction of the cylinder portion 42, as shown in FIG. The compressor 58 is connected to the main body 5.
1 and is fastened and fixed by passing a mounting screw 59 through a hole 51c formed in the main body 51 from the outside. The stopper 8 is attached so as to extend downward from the hammer drill 1. Further, an air hose 60 is connected to each of the air nipples 47a and 47b extending from the mounting plate 31 of the body angle 30, and the compressor 5
8 is supplied to each rodless cylinder 41.

Next, a method of drilling a floor surface using the anchor drilling device configured as described above will be described. First, the angle adjustment fixing bolt 40 is loosened, and the main body angle 30 is set on the shaft 2 so that the axis of the drill bit 1a is vertical.
Rotate around 3a to adjust the posture of the main body angle 30. Then, the angle adjustment fixing bolts 40 are fastened to fix the main body angle 30 to the side plate 22. Further, the length of the stopper 8 is adjusted. Next, the anchor drilling device is arranged so that the drilling position on the floor surface is located within the opening 21a. Then, fine adjustment is made by shifting the anchor drilling device so that the tip of the drill blade 1a is positioned on the drilling position. Next, the compressor 58 is operated to adjust the air pressure to a predetermined value. Then, the operator gets on the tread plate 26, drives the hammer drill 1, and switches the changeover switch 61 to the first position. Thereby, the hammer drill 1 descends, and the drill blade 1a hits the floor. Then, the drill reaction force is received by the operator's own weight on the tread plate 26, and a hole is drilled in the floor surface while rotating while the drill blade 1a is pressed by a constant air pressure. When the stopper 8 hits the floor, the hammer drill 1 stops moving forward. Then, the changeover switch 61 is switched to the first position, the hammer drill 1 is raised, and a hole having a vertical direction in the depth direction is formed. Then, the anchor drilling device is moved to the next drilling position, and the above operation is repeated to perform drilling.

Next, in order to make a hole inclined with respect to the horizontal floor, the angle adjustment fixing bolt 40 is loosened, and the body angle 30 is tilted so that the axis of the drill bit 1a is inclined at a predetermined angle with respect to the vertical. After turning around the shaft 23 a to adjust the posture of the main body angle 30, the fixing bolt 40 for angle adjustment is fastened to fix the main body angle 30 to the side plate 22. By performing the above-described operation, a hole inclined at a predetermined angle with respect to the floor surface can be formed. When drilling a vertical hole in the inclined floor, an anchor drilling device may be arranged on the inclined floor, and the posture of the main body angle 30 may be adjusted so that the axis of the drill blade 1a is vertical. . In the case of drilling a hole in a short ceiling, the drill mounting member 50 may be mounted upside down on the sliding portion 46.

As described above, according to the first embodiment,
Since it is not necessary for the operator to carry out the drilling by holding the hammer drill 1, the accuracy of the hole diameter can be improved, and the operator does not need to take a cramped posture. Therefore, the strength of the anchors cast in the holes is ensured, and a long-time drilling operation can be performed. Further, since the operator receives the drill reaction force by its own weight on the tread plate 26, it is possible to prevent the wrist from being damaged by the drill reaction force. Also,
Since the rodless cylinder 41 is used, the length of the elevating mechanism of the hammer drill 1 is only the length of the cylinder portion 42, and the size of the device is reduced. Therefore, if a space for the apparatus and the worker is secured, drilling work can be performed in a narrow place.

Further, since the compressed air of the compressor 58 is supplied to the rodless cylinder 41 to move the hammer drill 1 up and down, if the compressed air is supplied, the hammer drill 1 will quickly reach the drilling surface. In addition, the working time can be reduced. In addition, since the pressing force of the hammer drill 1 is generated by the compressed air having a constant pressure, poor drilling due to fluctuations in the pressing force of the hammer drill 1 is prevented. Further, since the axis of the drill blade 1a intersects at right angles with the axis of the shaft 23a of the hinge 23 mounted on the base plate 21 of the gantry 20, even if the posture of the body angle 30 is changed, Even if the axis of is tilted,
The contact position between the drill blade 1a and the drilling surface does not change. Therefore, a drilling position is ensured with high accuracy.

A pair of rodless cylinders 41 are attached to the body angle 30 in parallel with each other with the length direction of the cylinder portion 42 as the vertical direction. Moving part 4
Since it is installed between the six, the vertical movement of the drill mounting member 50, that is, the hammer drill 1, can be performed stably.

Although this anchor drilling device has been described as being applied to drilling for anchors for fixing anchor bolts to a concrete ceiling or floor surface, this anchor drilling device applies the axis of the hammer drill 1 to the center of the hammer drill 1. Since it can be inclined with respect to the installation floor, it can also be applied to drilling holes for static crushed materials for partially cutting off concrete materials and stone materials.

Embodiment 2 FIG. 10 is a perspective view showing a configuration of a drill attachment member in an anchor drilling apparatus according to Embodiment 2 of the present invention. In FIG. 10, a drill mounting member 70 includes a cylindrical main body 71 having an L-shaped mounting piece 72 fixed to both ends, a fixed pole 73 inserted through the main body 71, and a telescopically movable inside the fixed pole 73. A slide pole 74 attached to the slide pole 74, a drill mounting bracket 75 attached to the tip of the slide pole 74, and a fixed pole 73.
And a lock device 76 for a slide pole 74 and a slide pole 74. A fastening bolt 77 for fixing the fixing pole 73 is screwed to the main body 71, and a hole 72 a for attaching a sliding portion is formed in the mounting piece 72.

Then, the mounting screw 55 is inserted into the hole 7 of the mounting piece 72.
The main body portion 71 is bridged between the sliding portions 46 by passing through 2a and fastened to a screw hole provided in the sliding portion 46 of the rodless cylinder 41. Further, the hammer drill 1 is fastened and fixed to the drill mounting bracket 75 by the mounting screw 78. Then, the fixing pole 73 is inserted through the main body 72 and the fastening bolt 77
Is fixed to the main body 71. Further, the slide pole 74 is extended to a predetermined length, and is fixed to the fixed pole 73 by the lock mechanism 76. Thereby, the drill attachment member 70 is attached to the main body angle 30 via the rodless cylinder 41. In the second embodiment,
The configuration is the same as that of the first embodiment except that a drill mounting member 70 is used instead of the drill mounting member 50.

In the second embodiment, a hole can be formed in the ceiling by raising the drill mounting member 70 by the rodless cylinder 41. As described above, the anchor drilling device according to the second embodiment has the effect of easily drilling a high ceiling in addition to the effect of the first embodiment.

In each of the above embodiments, the pair of rodless cylinders 41 are attached to the main body angle 30 in parallel with each other with the longitudinal direction of the cylinder portion 42 as the vertical direction. The rodless cylinder 41 is provided between the two sliding portions 46 of the pair of rodless cylinders 41.
0 may be attached. Further, in each of the above embodiments, both mounting plates 31 of the main body angle 30 are
5 and a pair of side plates 2 with angle fixing bolts 40 passed through.
2, the two mounting plates 31 of the main body angle 30 need not necessarily be fixed to the pair of side plates 22. One mounting plate 31 of the main body angle 30 is fixed to the side plate 22. You may make it. Further, in each of the above embodiments, the hinge 23 is used to
Of the main body angle 30 and the gantry 20 is not limited to this, and the lower end of the main body angle 30 is pivotally mounted on the gantry 20. The shaft may be attached to one of the body angle 30 and the gantry 20 and a bearing may be attached to the other, for example, as long as it is rotatable around the body.

[0032]

Since the present invention is configured as described above, it has the following effects.

According to the present invention, the pedestal on which the side plates are erected, the tread plate attached to the pedestal, the main body angle attached to the pedestal in the upright state, the elongated cylinder portion, and the slide in the cylinder portion The piston portion, which is movably housed and has a magnet member that defines the inside of the cylinder portion as first and second spaces, is externally fitted to the cylinder portion, and is magnetically attracted to the magnet member to form the piston portion. A rodless cylinder having a sliding portion that moves in the length direction of the cylinder portion in conjunction with the movement, the rodless cylinder attached to the body angle with the length direction of the cylinder portion as the vertical direction, A drill mounting member attached to the sliding portion and moving in the longitudinal direction of the cylinder portion in conjunction with the movement of the sliding portion; and a drill mounting member whose axis is aligned with the longitudinal direction of the cylinder portion. A hammer drill attached to the drill attachment member, a compressor attached to the drill attachment member, and a changeover switch for switching supply of compressed air of the compressor to the first and second spaces in the cylinder portion. Therefore, it is possible to remarkably reduce the load on the worker without taking a cramped working posture, and to obtain an anchor drilling device capable of stably and accurately drilling.

The lower end of the main body angle is attached to the gantry so as to be rotatable around an axis orthogonal to the length direction of the cylinder portion, and an arc hole having an axis centered on the axis is formed in the side plate. Since the fastening member is penetrated and the fastening member is inserted through the arc hole to fasten and fix the main body angle and the side plate, a hole having a predetermined inclination angle with respect to a drilling surface can be easily formed. it can.

Further, since the axis of the hammer drill intersects the axis of the shaft at right angles, the contact position of the drill blade with respect to the drilling surface does not change even when the axis of the hammer drill is inclined. Position accuracy is ensured.

Further, since the drill mounting member is configured to be extendable and contractible in the length direction of the cylinder portion, a hole can be easily formed on a high ceiling.

Further, the pair of rodless cylinders are attached to the main body angle in parallel with each other with the longitudinal direction of the cylinder portion as the vertical direction, and the drill mounting member is provided with two slides of the pair of rodless cylinders. Since it is installed on the section, the lifting and lowering operation of the hammer drill is performed stably.

[Brief description of the drawings]

FIG. 1 is a front view showing an anchor drilling device according to Embodiment 1 of the present invention.

FIG. 2 is a side view showing an anchor drilling device according to Embodiment 1 of the present invention.

FIG. 3 is a perspective view illustrating a structure of a gantry and a tread plate in the anchor drilling device according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view showing a main body angle in the anchor drilling device according to the first embodiment of the present invention.

FIG. 5 is an essential part cross-sectional view for explaining a connection structure between the main body angle and the gantry in the anchor drilling apparatus according to Embodiment 1 of the present invention.

FIG. 6 is a perspective view showing a rodless cylinder in the anchor drilling device according to Embodiment 1 of the present invention.

FIG. 7 is a fragmentary cross-sectional view for explaining the structure of the rodless cylinder in the anchor drilling device according to Embodiment 1 of the present invention;

FIG. 8 is a diagram for explaining the operation of the rodless cylinder in the anchor drilling device according to the first embodiment of the present invention.

FIG. 9 is a perspective view illustrating a structure of a drill attachment member in the anchor drilling device according to the first embodiment of the present invention.

FIG. 10 is a perspective view showing a configuration of a drill mounting member in an anchor drilling apparatus according to Embodiment 2 of the present invention.

FIG. 11 is a diagram illustrating a drilling operation by a conventional concrete drilling device.

[Explanation of symbols]

1 hammer drill, 1a drill blade, 20 gantry, 2
2 side plate, 23 hinge, 23a axis, 25 arc holes, 2
6 step board, 30 body angle, 40 angle fixing bolt (tightening member), 41 rodless cylinder, 4
2 Cylinder part, 42a first space, 42b second space, 44 magnet (piston part), 45 O-ring (piston part), 46 sliding part, 50, 70 drill mounting member, 58 compressor, 61 changeover switch.

Claims (5)

[Claims] 1. A gantry on which side plates are erected, a tread plate attached to the gantry, a main body angle attached to the gantry in an upright state, an elongated cylinder portion, and slidably housed in the cylinder portion. And a piston portion provided with a magnet member that defines the inside of the cylinder portion as first and second spaces, and is externally fitted to the cylinder portion, is magnetically attracted to the magnet member, and interlocks with the movement of the piston portion. A rodless cylinder attached to the body angle with the longitudinal direction of the cylinder portion as a vertical direction, and a sliding portion of the rodless cylinder. A drill mounting member that is attached to the cylinder and moves in the length direction of the cylinder portion in conjunction with the movement of the sliding portion; and a drill mounting member that has an axis aligned with the length direction of the cylinder portion. A hammer drill attached thereto; a compressor attached to the drill attachment member; and a changeover switch for switching supply of compressed air of the compressor to the first and second spaces in the cylinder portion. And anchor drilling equipment. 2. A lower end of the main body angle is attached to the mount so as to be rotatable around an axis orthogonal to a length direction of the cylinder portion, and an arc hole having an axis centered on the axis is formed in the side plate. 2. An anchor drilling device according to claim 1, wherein the hole is drilled, and a fastening member is inserted into the arc hole to fasten and fix the main body angle and the side plate. 3. The anchor drilling device according to claim 2, wherein the axis of the hammer drill intersects the axis of the shaft at right angles. 4. The anchor drilling device according to claim 1, wherein the drill mounting member is configured to be extendable and contractible in a length direction of the cylinder portion. 5. A pair of said rodless cylinders are attached to said main body angle in parallel with each other with a longitudinal direction of said cylinder portion as a vertical direction, and said drill mounting member is provided with two slides of said pair of rodless cylinders. The anchor drilling device according to any one of claims 1 to 4, wherein the anchor drilling device is installed on a part.