JP3223843U - Cutting equipment - Google Patents

Abstract

A cutting apparatus capable of safely repairing a tile surface in a tunnel is provided. A hat attachment 5 is detachably attached to the tip of an arm 4 of a hydraulic excavator, and a cover body 6 having an umbrella shape is attached to the hat attachment 5 so as to surround the hat attachment 5. 6 is attached a dust collecting means 7 for collecting cutting pieces generated when the tile surface is cut by the haturi attachment 5. Then, the other end side of the cover body 6 opens toward the tile surface, and the other end side of the cover body 6 that is opened is pressed against the tile surface. A space to be confined so as not to scatter is formed, and the cutting pieces inside the cover body 6 are collected by the dust collecting means 7. [Selection] Figure 2

Description

  The present invention relates to a cutting device for cutting a tile surface formed by affixing a plurality of tiles on a tunnel wall surface for repair.

  In general, in tunnels with concrete walls, deterioration of concrete walls, delamination, and corrosion of rebars occur due to vibration during vehicle travel, the effects of acid rain, and alkali-aggregate reactions. There is.

  And when these concrete walls deteriorate or peel off, or damage such as corrosion of reinforcing bars occurs, in order to repair the damaged parts, conventionally, the damaged concrete wall surfaces are partially suspended, and Remedial measures, such as applying a paint of a system or filling a mortar, are taken (see Patent Document 1).

JP 2014-148847 A (paragraph 0004 and others)

  By the way, in the case of a tunnel, a large number of tiles are pasted on the concrete wall surface, and repair of such a tile surface is similarly performed by pasting a part and pasting a new tile, Traditionally, tile surface repair work must be done with the lanes in the tunnel closed and the vehicle stopped, and at the very least, the work can be done with only one side lane stopped. It is desired to realize an efficient repair work that can ensure safety so that cutting pieces generated during repair work do not scatter on the possible lane side.

  This invention is made in view of the said subject, and it aims at providing the cutting device which can perform the repair work of the tile surface in a tunnel safely.

  In order to achieve the above object, a cutting device of the present invention is a cutting device that cuts a tile surface formed by attaching a plurality of tiles to a tunnel wall surface for repair, and includes an arm of a hydraulic excavator. Cutting means that is detachably attached to the tip and cuts the tile surface, an umbrella-shaped cover body that has an umbrella shape disposed so as to surround the cutting means, and a cover body that is connected to the cover body and is connected to the cover body Dust collecting means for collecting cutting pieces generated when the tile surface is cut by a cutting means, and one end side of the cover body is detachably attached to a tip portion of an arm of the hydraulic excavator, The other end side opens toward the tile surface, and the other end side of the cover body is pressed against the tile surface, so that a cutting piece generated by cutting the tile surface becomes the cover body. It is characterized in that the space confined so as not to scatter to the outside.

  According to such a configuration, when cutting a part of the tile surface to be repaired by the cutting means, a space can be formed inside the cover body by pressing the cover body against the tile surface. It is possible to prevent the cutting piece generated by the scattering to the outside of the cover body, and even if repair work is performed with only one side lane of the tunnel closed, the cutting piece will not scatter to the lane side where it can pass, It will be possible to safely repair the tile surface in the tunnel.

  Further, the other end side of the cover body may be formed so as to expand its opening by being pressed against the tile surface. If it carries out like this, the clearance gap between a cover body and a tile surface can be made small as much as possible, and the scattering prevention effect of the cutting piece by a cover body can be improved further.

  In addition, the cover body has a plurality of metal pipes, a connecting member that sequentially connects the other ends of the plurality of metal pipes, and flexibility and transparency that are attached so as to block between the adjacent metal pipes. A plurality of metal pipes, wherein one end of each of the plurality of metal pipes surrounds the periphery of the cutting means attached to the arm, and is attached to the arm so that the other end side can expand and contract. There should be. In this way, when the cover body is pressed against the tile surface, the cover body can be formed so that the opening on the other end side is widened, and the cover member is transparent. The situation can be easily grasped.

  According to this device, since the other end side of the cover body opened is pressed against the tile surface, a space for confining the cutting pieces generated by cutting the tile surface so as not to be scattered outside the cover body is formed. It is possible to prevent scattering of the cover of the piece to the outside, and even when repair work is performed with only one side lane of the tunnel closed, it is possible that the cutting piece will scatter on the lane side where it can pass This can prevent the tile surface in the tunnel from being repaired more safely.

It is a schematic structure figure showing one embodiment of a cutting device concerning the present invention. It is a one part perspective view of FIG. FIG. 3 is a side view of a part of FIG. 2. It is a side view of the other part of FIG.

  An embodiment of a cutting device according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, a cutting device 2 used when repairing a tile surface 1 a formed by attaching a plurality of tiles to a wall surface of a tunnel 1 is configured as follows.

  That is, a hat attachment 5 as a cutting means is detachably attached to the tip of the arm 4 of the excavator 3, and a cover body 6 for preventing the scattering of cutting pieces having an umbrella shape so as to surround the tip of the hat attachment 5. Is attached to the cover body 6, and dust collecting means 7 for collecting cutting pieces generated when the tile surface 1 a is cut by the haturi attachment 5 is attached to the cutting body 2. In FIG. 1, numeral 8 denotes a curing sheet that receives the tile piece T that falls by cutting, and is laid from the directly below the tunnel surface 1a to be repaired across the width direction of one side lane blocked in the tunnel, and the other lane. In the vicinity, the end portion is fixed to a fixed fence 9 having an A-shape in side view, and the falling tile piece T prevents the road surface from being damaged.

  By the way, the hatsuri attachment 5 is appropriately selected from a plurality of different sizes facilitated according to the cutting area, the size of the tile surface 1a to be cut, and the like. As shown in FIGS. By attaching the attachment main body 5a to the tip of the arm 4 in a detachable manner, a plurality of cutting blades 5b provided at the tip of the attachment main body 5a reciprocate in a direction perpendicular to the wall surface by high-pressure air via the air hose 5c. The tile surface 1a is cut by being driven to rotate simultaneously with the vibration.

  The umbrella-shaped cover body 6 is attached to the hat attachment 5 as shown in FIGS. 2 and 4, and is attached to the attachment body 6a having a shape obtained by dividing the ring into two parts, and one end of the attachment body 6a being rotatable. A plurality of metal pipes 6b, a connecting member 6c made of, for example, carbon fiber for sequentially connecting the other end sides of the plurality of metal pipes 6b, a metal mesh attached so as to block between adjacent metal pipes 6b, etc. And a cover member 6d having flexibility and transparency.

  As shown in FIG. 4, one end of the metal pipe 6b is disposed between a pair of attachment pieces 6e provided on the attachment body 6a, and the plurality of attachment pieces 6e, One end of one metal pipe 6b is attached so as not to be removable from both attachment pieces 6e and rotatable by fastening fasteners such as bolts and nuts provided through the metal pipe 6b. A plurality of metal pipes 6b are attached. At this time, the attachment body 6a is externally fitted on the outer periphery of the haptic attachment main body 5a and fixed by bolts, whereby one end side of the cover body 6 is detachably attached to the attachment 5 and the other end side of the cover body 6 is It will be in the state which can be arrange | positioned in the state opened toward the tile surface 1a.

  In addition, the other end side of the cover body 6 is pressed against the tile surface 1a, so that the opening widens so that the connecting member 6c and the cover member 6d have a clearance so that the other end side of each metal pipe 6b is connected. It is connected.

  As shown in FIG. 2, one end of a hose 7 a communicating with the inside of the cover body 6 is connected to a part of the cover member 6 d of the cover body 6, and the other end of the hose 7 a is connected to the dust collecting means 7. When the tile surface 1a is cut by the hatsuri attachment 5 in a state where the other end side of the cover body 6 that is open is pressed against the tile surface 1a and a closed space is formed inside the cover body 6, The tile pieces T which are heavy and fall on the curing sheet 8, while the cut pieces which are smaller and lighter than the tile pieces T remain in the cover body 6, so the cutting pieces in the cover body 6 are sucked by the dust collecting means 7. Thus, the scattering of the cutting pieces to the outside of the cover body 6 is prevented. At this time, since the cover member 6c is made of a metal mesh and has transparency, the internal state of the cover body 6 during the cutting operation can be easily visually recognized and grasped. Note that the excavator 3 and the arm 4 are moved to sequentially cut a predetermined range of cutting points.

  Therefore, according to the above-described embodiment, a space is formed inside the cover body 6 by pressing the cover body 6 against the tile surface 1a when cutting a part of the tile surface 1a to be repaired with the hat attachment 5. Therefore, it is possible to prevent cutting pieces generated by cutting from scattering outside the cover body 6, and even if repair work is performed with only one side lane of the tunnel 1 blocked, The cutting pieces can be prevented from scattering, and the tile surface 1a in the tunnel 1 can be repaired safely and efficiently.

  Further, the other end side of the cover body 6 that is opened is formed so that the opening is widened by being pressed against the tile surface 1a, so that the gap between the cover body 6 and the tile surface 1a can be minimized. The effect of preventing scattering of the cutting pieces by the cover body 6 can be further improved.

  Furthermore, since the cover member 6c is made of a metal mesh and has transparency, the internal state of the cover body 6 during the cutting operation can be easily recognized and grasped, and the operation can be smoothly advanced.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the invention. For example, in the embodiment described above, the connecting member 6c of the cover body 6 is not limited to the above-described carbon fiber.

  In the above-described embodiment, the example in which the cover body 6 is detachably attached to the hat attachment 5 has been described. However, the cover body 6 may be directly attached to the tip of the arm 4 of the excavator 3.

  In the above-described embodiment, an example is shown in which one end side of the plurality of metal pipes 6b of the cover body 6 is rotatably attached to the attachment body 6a so that the opening on the other end side of the cover body 6 is widened. However, the structure of the cover body 6 is not limited to this. Furthermore, the cover member 6c constituting the cover body is not limited to the metal mesh as described above, and may be any material having flexibility and validity.

DESCRIPTION OF SYMBOLS 1 ... Tunnel 1a ... Tile surface 2 ... Cutting device 3 ... Hydraulic excavator 4 ... Arm 5 ... Hatria attachment (cutting means)
6 ... Cover body 6b ... Metal pipe 6c ... Connecting member 6d ... Cover member 7 ... Dust collecting means

Claims (3)

A cutting device for cutting a tile surface formed by attaching a plurality of tiles to a tunnel wall surface for repairing,
A cutting means that is detachably attached to the tip of an arm of a hydraulic excavator and cuts the tile surface;
A cover for preventing scattering of a cutting piece having an umbrella shape arranged so as to surround the cutting means;
Dust collecting means connected to the cover body and collecting cutting pieces generated when the tile surface is cut by the cutting means;
One end side of the cover body is detachably attached to a tip portion of the arm of the hydraulic excavator, and the other end side of the cover body opens toward the tile surface,
The other end side of the cover body is pressed against the tile surface, thereby forming a space for confining cutting pieces generated by cutting the tile surface so as not to be scattered outside the cover body. .   The cutting apparatus according to claim 1, wherein the other end side of the cover body is formed so that an opening thereof is expanded by being pressed against the tile surface. The cover body has a plurality of metal pipes, a connecting member that sequentially connects the other end sides of the plurality of metal pipes, and flexibility and transparency that are attached so as to block between the adjacent metal pipes. A cover member,
The one end of the plurality of metal pipes surrounds the periphery of the cutting means attached to the arm and is attached to the arm so as to be movable so that the other end side expands and contracts. Cutting equipment.

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