Rails for drilling equipment

Abstract

To provide rails for a drilling device capable of easily installing the rails for guiding the movement of the drilling device at a drilling site.SOLUTION: Traveling rails GR for guiding traveling of a drilling device A consist of: a pair of long rail parts 90; a connecting member 91 that is provided between the pair of long rail parts in a detachable state; an anchor member 92 that is driven into a slab part through a through hole in an outer protruding part 90b of the pair of long rail parts 90; and a connecting member 93 that is attached in a detachable state so as to connect the adjacent long rail parts 90 in a traveling direction. With this, the traveling rails GR can be carried and assembled in a disassembled state, thus the traveling rails GR can be easily installed at a drilling site.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a rail for a drilling device, and more particularly to a rail structure that serves as a guide when moving a drilling device that drills holes in an existing concrete structure. [Background technology]

[0002] For concrete structures that are in contact with the ground above ground, underground, semi-underground, etc., or concrete structures constructed above ground near railways, roads, etc., a construction method is used in which, for the purpose of earthquake reinforcement, a hole is drilled from one side of the structure using a drilling device, and the hole is filled with anchoring material.After that, post-installed shear reinforcement bars (hereinafter referred to as shear reinforcement bars) are inserted to integrate them with the structure, thereby improving the shear strength of the structure.

[0003] Furthermore, in the case of existing structures such as roads, bridges, dams, and levees that have concrete frames, a drilling device is used to drill holes at specified intervals on the sides and top and bottom surfaces of the frame in order to maintain and reinforce the frame, and post-installed anchors are embedded in the holes, and reinforcement is then placed to connect with the post-installed anchors, and further concrete is poured in a reinforcement method.

[0004] A shear reinforcement method for a structure is known, for example, from Patent Document 1 (JP 2016-037787 A). Also, a concrete addition method for a structure is known, for example, from Patent Document 2 (JP 2018-131848 A). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-037787 [Patent Document 2] Japanese Patent Application Publication No. 2018-131848 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-mentioned drilling work, if the drilling area is long, it is necessary to move the drilling device along the wall surface or to move the drilling device parallel to the wall in order to drill perpendicular to the wall. For this reason, it is possible to lay rails on the floor of the drilling work site along the concrete wall surface and move the drilling device along the rails.

[0007] However, in current drilling work, the structure and installation technology for such rails have not been established, and an important issue is how to easily install rails that guide the movement of drilling equipment.

[0008] The present invention has been made in light of the above-mentioned technical background, and aims to provide a technology that enables rails that guide the movement of a drilling device to be easily installed at a drilling site. [Means for solving the problem]

[0009] In order to solve the above problem, the rail for the drilling device of the present invention described in claim 1 comprises at least two sets of unit rail parts installed side by side along a floor part that intersects with the wall surface of the drilling target, and the unit rail parts are members that extend along the wall surface and are installed on the floor part facing each other, a pair of long rail parts that are integral with each of the pair of long rail parts and are installed in a state where the pair of long rail parts face each other, a pair of first protrusions that are integral with each of the pair of long rail parts and are installed in a state where the pair of long rail parts face each other, a pair of second protrusions that are integral with each of the pair of long rail parts and are installed in a state where the pair of second protrusions are installed in a state where the pair of long rail parts face each other, and ... installed in a state where the pair of long rail parts face each other, and a pair of second protrusions that are installed in a state where the pair of long rail parts face each other, and a pair of second protrusions that are installed in a state where the pair of long rail parts face each other, and a pair of first protrusions that are installed in a state where the pair of long rail parts face each other, and a pair of second protrusions that are installed in a state where the pair of long rail parts face each other, and a pair of second protrusions that are installed in a state where the pair of long rail parts face each other, and a pair of second protrusions that are installed The unit rail section is characterized by comprising: a first through hole provided to penetrate the top and bottom surfaces; a fixing member which is a component constituting the unit rail section and is installed on the floor section through the first through hole of each of the pair of second protrusions and fixes the pair of long rail sections to the floor section in a detachable manner; a first connecting member which is a component constituting the unit rail section and is provided between the pair of long rail sections and is detachably attached to the pair of first protrusions to connect the pair of long rail sections to each other; and a second connecting member which is detachably attached to each tip end of the long rail sections of the unit rail sections that are adjacent to each other along the wall surface and connects the long rail sections of the unit rail sections to each other.

[0010] The rail for a drilling device of the present invention described in claim 2 is characterized in that, in the invention described in claim 1, the first connecting member is attached to the first protrusion in a detachable state by fitting a first mating portion provided on the first connecting member with a second mating portion provided on the first protrusion.

[0011] The rail for a drilling device of the present invention described in claim 3 is the invention described in claim 1, wherein the second connecting member is configured by fitting a third mating portion provided on the second connecting member with a fourth mating portion provided at the tip end of the long rail portion, The long rail portionIt is characterized in that it is attached in a detachable state to the

[0012] The rail for a drilling device of the present invention described in claim 4 is characterized in that, in the invention described in claim 3, the first connecting member is attached to the first protrusion in a detachable state by fitting a first mating portion provided on the first connecting member with a second mating portion provided on the first protrusion.

[0013] The rail for a drilling device of the present invention described in claim 5 is characterized in that, in the invention described in any one of claims 1 to 4 above, the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

[0014] The rail for a drilling device of the present invention described in claim 6 is characterized in that, in the invention described in any one of claims 1 to 4 above, the pair of long rail portions are provided with a pair of third protrusions protruding outward from each of the pair of long rail portions at positions different from the second protrusions, and the pair of third protrusions are provided with second through holes that penetrate the upper and lower surfaces of the third protrusions and into which the fixing member is inserted.

[0015] The rail for a drilling device of the present invention described in claim 7 is characterized in that, in the invention described in claim 6, the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

[0016] The rail for a drilling device of the present invention described in claim 8 is characterized in that, in the invention described in any one of claims 1 to 4, the fixing member is constituted by a screw-type anchor member.

[0017] The rail for a drilling device of the present invention described in claim 9 is characterized in that, in the invention described in claim 8, the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

[0018] The rail for a drilling device of the present invention described in claim 10 is characterized in that, in the invention described in claim 8, the pair of long rail portions are provided with a pair of third protrusions protruding outward from each of the pair of long rail portions at positions different from the second protrusions, and the pair of third protrusions are provided with second through holes that penetrate the upper and lower surfaces and into which the fixing member is inserted.

[0019] The rail for a drilling device of the present invention described in claim 11 is characterized in that, in the invention described in claim 10, the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward. [Effects of the Invention]

[0020] According to the present invention, rails for guiding the movement of a drilling device can be easily installed at the drilling site. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is an explanatory diagram showing a portion of a concrete structure that has been earthquake-reinforced by inserting shear reinforcement bars into holes drilled by a hole-drilling device according to one embodiment of the present invention. [Figure 2] 1 is a side view of a drilling device according to an embodiment of the present invention. [Figure 3] FIG. 2 is a front view of the drilling device of FIG. 1. [Figure 4] FIG. 2 is a plan view of the drilling device of FIG. 1. [Figure 5] FIG. 4 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7]FIG. 2 is an explanatory diagram showing the arrangement of chains provided in the drilling device of FIG. 1. [Figure 8] 1 is a plan view of a traveling rail for a drilling device according to an embodiment of the present invention. [Figure 9] 9 is an enlarged plan view of a unit rail portion that constitutes the traveling rail of FIG. 8. FIG. [Figure 10] 10 is a plan view of a pair of long rail portions that make up the unit rail portion of FIG. 9. FIG. [Figure 11] 10. (a) is a cross-sectional view taken along line II in FIG. 10, and (b) is a cross-sectional view taken along line II-II in FIG. [Figure 12] 12(a) is a cross-sectional view taken along line II in FIG. 9, and FIG. 12(b) is a cross-sectional view showing an exploded view of the unit rail portion in FIG. 12(a). [Figure 13] 10 is an enlarged plan view of a unit rail portion showing an example in which an anchor member is arranged on a spare outer protrusion portion. FIG. [Figure 14] 13A is a cross-sectional view taken along line II in FIG. 13, and FIG. 13B is a cross-sectional view taken along line III-III in FIG. [Figure 15] 15(a) is an enlarged plan view of the area P surrounded by the dashed line at the tip of the long rail portion in FIG. 8, (b) is a plan view of the back surface of the connecting member in FIG. 15(a), and (c) is a side view of the connecting member in FIG. 15(b). [Figure 16] 16(a) is an enlarged plan view of the tip of the long rail portion shown in FIG. 15(a) with the connecting member removed, and FIG. 16(b) is a cross-sectional view taken along line IV-IV in FIG. 16(a). [Figure 17] 17(a) is a cross-sectional view taken along line IV-IV in FIG. 15(a), and FIG. 17(b) is a cross-sectional view showing the exploded parts of FIG. 17(a). [Figure 18] 18(a) is a plan view of the traveling rail and the drilling device during drilling work, and FIG. 18(b) is a plan view of the traveling rail and the drilling device after the process of FIG. 18(a). [Figure 19] 19(a) is a plan view of the traveling rail and the drilling device after the process of FIG. 18(b), and FIG. 19(b) is a plan view of the traveling rail and the drilling device after the process of FIG. 19(a). DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the drawings for explaining the embodiment, the same components are generally designated by the same reference numerals, and repeated description thereof will be omitted.

[0023] FIG. 1 is an explanatory diagram showing a part of a concrete structure that has been earthquake-reinforced by inserting shear reinforcement bars into holes drilled by a hole-drilling device according to one embodiment of the present invention.

[0024] The drilling device of this embodiment is used to drill a hole H from one side (wall) as part of a reinforcement work process for an existing concrete structure S that is in contact with ground G as shown in FIG. 1, or an existing concrete structure (not shown) constructed on the ground near a railway, road, or other structure. After filling the drilled hole H with anchoring material M, a shear reinforcing bar R is inserted and integrated with the structure S, thereby improving the shear strength of the structure S. Note that the shear reinforcing bar R may be, for example, a commonly used reinforcing bar R1 that has been threaded and diagonally cut on one side and has a hexagonal nut (anchor) R2 attached to its tip.

[0025] Figure 2 is a side view of a drilling device according to one embodiment of the present invention, Figure 3 is a front view of the drilling device of Figure 1, Figure 4 is a plan view of the drilling device of Figure 1, Figure 5 is a cross-sectional view along line VV of Figure 3, Figure 6 is a cross-sectional view along line VI-VI of Figure 2, and Figure 7 is an explanatory diagram showing the arrangement of chains provided in the drilling device of Figure 1.

[0026] As shown in Figures 2 to 6, the drilling device A of this embodiment comprises a main frame 10 constructed in the shape of a rectangular parallelepiped from rod-shaped steel material such as a column (square steel pipe) or H-shaped steel, a lifting frame 20 similarly constructed in the shape of a rectangle from steel material such as a column or H-shaped steel and arranged so that it can be raised and lowered within the main frame 10, and a drifter 30 attached to the lifting frame 20 for drilling a hole in a concrete structure S in front of it.

[0027] As shown in Fig. 3, the main frame 10 has openings at the front and rear, and as shown in Fig. 2 and 5, beams 11 are attached to the sides at multiple locations (here, for example, two locations) on the top and bottom, and braces 12 are also provided to ensure the required strength. As shown in Fig. 4 and 6, the lifting frame 20 is made up of four frame rods 21 that form a rectangle, and as shown in Fig. 2, 5 and 6, is fitted into guide rails 14 that are provided along four pillars 13 that extend up and down the main frame 10, and moves up and down within the open area on the front while being guided by the guide rails 14.

[0028] As shown in Figure 5, the drifter 30 comprises a rod 32 with a bit 31 attached to the tip, and a drifter body 33 that applies impact force, rotational force, and thrust to the rod 32, and drills a hole H of a predetermined depth in a concrete structure S. The drifter 30 can move laterally (moving along the wall surface of the target to be drilled) on the lifting frame 20 so that it can be moved to a desired position on the open front side, and can also move forward and backward (moving in a direction intersecting (perpendicular to) the wall surface of the target to be drilled) to drill a hole in the structure S through the open front side.

[0029] The drifter 30 of this embodiment is capable of drilling a relatively deep hole H, for example, about 1 m deep. However, the depth of the hole H can be freely set and is not limited to 1 m as in this embodiment.

[0030] Here, specific examples of the lateral movement mechanism and the forward / backward movement mechanism of the drifter 30 will be described.

[0031] 4 and 6, the lifting frame 20 is provided with a lateral movement member 40 that moves laterally on the lifting frame 20. The lateral movement member 40 is also provided with an advancing / retreating member 50 that can reciprocate in a direction perpendicular to the direction of movement of the lateral movement member 40. The advancing / retreating member 50 moves the drifter 30 forward and backward, and the lateral movement member 40 moves the advancing / retreating member 50 laterally, thereby enabling the drifter 30 to move laterally and forward and backward.

[0032] 6, the lateral movement member 40 includes lateral guide rails 41 extending laterally along the frame rods 21 located at the rear of the rectangular lifting frame 20, a lateral movement body 42 that is elongated in the front-rear direction and slides on the lateral movement guide rails 41, and a ball screw 44 that is threadedly engaged with the lateral movement body 42 and is rotationally driven by a lateral movement motor 43. The drifter 30 is mounted on the lateral movement body 42 via an advancing / retracting member 50. Therefore, the rotation of the ball screw 44 moves the lateral movement body 42 along the lateral movement guide rails 41, and the drifter 30 moves laterally on the lifting frame 20 within the range of the front opening.

[0033] 4 and 6, the advancing / retreating member 50 includes an advancing / retreating guide rail 51 provided along the cross body 42, a slider 52 that slides on the advancing / retreating guide rail 51, and an endless belt 54 that is driven to rotate by an advancing / retreating motor 53 to slide the attached slider 52. The drifter 30 is mounted on the slider 52. Therefore, the rotation of the advancing / retreating motor 53 rotates the endless belt 54, and the slider 52 moves along the advancing / retreating guide rail 51, causing the drifter 30 to move back and forth on the lifting frame 20. In this embodiment, the endless belt 54 is, for example, a non-metallic rubber belt, but it may also be a metal belt.

[0034] Next, a specific example of the lifting mechanism of the lifting frame 20 will be described.

[0035] As shown in Figure 3, the lifting mechanism includes a chain 60 that suspends the lifting frame 20, a lifting motor 61 that raises and lowers the chain 60 to raise and lower the lifting frame 20, and a sprocket 62 around which the chain 60 is stretched.

[0036] The chain 60 is composed of a first chain 60a and a second chain 60b, one ends of which are attached to the centers of two opposing sides of the lifting frame 20. That is, as shown in Figures 3, 4 and 6, one ends of the first chain 60a and the second chain 60b are attached to the upper centers of two frame rods 21 on the left and right, which are components of the rectangular lifting frame 20. The other ends of the first chain 60a and the second chain 60b are attached to the lower centers of the frame rods 21 on the opposite side.

[0037] The chain 60 is attached to the left and right frame rods 21 because if it were attached to the front and rear frame rods 21, it would interfere with the drifter 30 moving laterally.

[0038] 3 and 7, sprockets 62a and 62b are disposed in the front-to-rear center of the upper left and right sections of main frame 10, and sprockets 62c and 62d are disposed in the front-to-rear center of the corresponding lower left and right sections. Sprocket 62e is disposed between lift motor 61 and sprocket 62d located near lift motor 61, and at a position slightly higher than sprocket 62d. Furthermore, drive sprocket 61a is attached to lift motor 61.

[0039] The sprockets 62b, 62d, and 62e on the side where the drive sprocket 61a and the lifting motor 61 are located (the right side in the drawing) are single-double sprockets, with two sprockets coaxially integrated, allowing two chains 60 (first chain 60a and second chain 60b) to be stretched over them. The sprockets 62a and 62c on the opposite side (the left side in the drawing) are single sprockets, allowing only the first chain 60a to be stretched over them.

[0040] 3, the first chain 60a is looped around sprockets 62a, 62b, 62e, drive sprocket 61a, sprocket 62d, and sprocket 62c in this order from an upper mounting position on the left side of the lifting frame 20 upward to a lower mounting position on the left side of the lifting frame 20. The second chain 60b is looped around sprockets 62b, 62e, drive sprocket 61a, and sprocket 62d in this order from an upper mounting position on the left side of the lifting frame 20 upward to a lower mounting position on the right side of the lifting frame 20.

[0041] 3, when the lifting motor 61 rotates clockwise and the first chain 60a and the second chain 60b rotate, the lifting frame 20 is lifted up by these chains 60 and rises. Also, in FIG. 3, when the lifting motor 61 rotates counterclockwise and the first chain 60a and the second chain 60b rotate in the opposite direction, the lifting frame 20 is suspended by these chains 60 and falls.

[0042] 2 to 4, reaction force transmission units 70 are installed at two locations, left and right, on the upper end of the main frame 10 to transmit a thrust reaction force to the structure S, which is the target of drilling, during drilling. The reaction force transmission units 70 include a suction pad 71 that adheres to the structure S by negative pressure suction force from a vacuum pump (not shown), and a slide jack 72 that moves the suction pad 71 forward and backward. During drilling, the slide jack 72 extends the suction pad 71 forward and presses it against the structure S, and the vacuum pump adheres the suction pad 71 to the structure S, thereby generating a thrust reaction force when drilling the structure S with the drifter 30, enabling smooth drilling.

[0043] It is desirable to install the reaction force transmission unit 70 at two locations, one on the left and one on the right side of the upper end of the main frame 10, as in this embodiment, but it may also be installed at one location on either the left or right side of the upper end, one location in the center of the upper end, or at a location other than the upper end.

[0044] The drilling device A can move along the traveling rail GR by a traveling motor 81 provided at the bottom of the main frame 10. That is, as shown in Figures 2, 3, and 5, the drilling device A is mounted on the traveling rail GR via a plurality of rollers 82 (for example, four in this embodiment) attached to the bottom of the main frame 10. The rollers 82 are rotating members that are driven by the traveling motor 81 to roll on the traveling rail GR, and include two drive rollers 82a (see Figures 2, 3, and 6) and two driven rollers 82b (see Figures 3 and 6). The two drive rollers 82a are attached coaxially to a traveling drive shaft 84 that is rotationally driven by the traveling motor 81 via a belt 83. Meanwhile, the two driven rollers 82b are rotatably installed at positions opposite the drive roller 82a in the extension direction of the traveling rail GR, and rotate according to the rotation of the drive roller 82a.

[0045] To drill a hole H for inserting a shear reinforcing bar R into a concrete structure S as shown in FIG. 1 using the hole drilling device A having the above configuration, for example, the following procedure is carried out.

[0046] First, the drilling device A is moved to the drilling site by traveling along the traveling rail G. Next, if necessary, the suction pad 71 is extended forward by the slide jack 72 and pressed against the structure S for adsorption, and then the lifting frame 20 is moved to a predetermined height by the lifting motor 61, and the lateral movement body 42 is moved to a predetermined lateral position by the lateral movement motor 43, thereby moving the drifter 30 to the drilling position.

[0047] Next, the power to the drifter 30 is turned on, the drifter 30 is moved forward from the standby position to the position where the bit 31 contacts the structure S, and once the bit 31 contacts the structure S, the drifter 30 is automatically returned to its original standby position.By measuring the movement distance of the drifter 30 during this series of operations, the distance between the drilling device A and the structure S is measured.

[0048] Next, the advance / retract motor 53 slides the slider 52 to move the drifter 30 forward, thereby pressing the bit 31 at the tip of the rod 32 that constitutes the drifter 30 against the drilling position in the structure S, drilling a hole in the structure S. Then, once the hole has been drilled to the specified depth, the slider 52 is moved in a direction away from the structure S to move the drifter 30 backward and return it to the standby position.

[0049] To drill holes in the structure 2, for example, the height of the drifter 30 is changed for each horizontal drilling position to drill multiple holes. That is, the traverse motor 43 moves the traverse body 42 horizontally to set the drifter 30 to a first horizontal drilling position. Next, at the first horizontal drilling position, the lifting motor 61 moves the lifting frame 20 vertically to drill multiple holes while changing the height of the drifter 30. Then, after drilling at the first horizontal drilling position is completed, the traverse motor 43 moves the traverse body 42 to a second horizontal drilling position adjacent to the first horizontal drilling position, and the drifter 30 is set at the second horizontal drilling position. Thereafter, at the second horizontal drilling position, multiple holes are drilled while changing the height of the drifter 30 in the same manner as above. By repeating this process, multiple holes are drilled in the wall surface of the structure S.

[0050] Another method for drilling holes may involve changing the lateral position of the drifter 30 for each vertical drilling position, thereby drilling multiple holes. Specifically, the lifting motor 61 moves the lifting frame 20 vertically to set the drifter 30 at a first vertical drilling position. Next, at the first vertical drilling position, the lateral movement motor 43 moves the traverse body 42 laterally to change the lateral position of the drifter 30, thereby drilling multiple holes. After drilling at the first vertical drilling position is completed, the lifting motor 61 moves the lifting frame 20 to a second vertical drilling position directly above or below the first vertical drilling position, thereby setting the drifter 30 at the second vertical drilling position. Then, at the second vertical drilling position, multiple holes are drilled while changing the lateral position of the drifter 30 in the same manner as described above. By repeating this process, multiple holes are drilled in the wall surface of the structure S.

[0051] In this way, according to the drilling device A of this embodiment, holes can be drilled by moving the drifter 30 vertically and horizontally within the wall surface of the concrete structure S to be drilled, thereby making it possible to drill multiple holes within the wall surface while reducing the burden on the worker.

[0052] Next, the traveling rail GR of this embodiment will be described with reference to FIGS.

[0053] Figure 8 is a plan view of a running rail for a drilling device, Figure 9 is an enlarged plan view of a unit rail section that constitutes the running rail of Figure 8, Figure 10 is a plan view of a pair of long rail sections that constitute the unit rail section of Figure 9, Figure 11(a) is a cross-sectional view along line II of Figure 10, Figure 11(b) is a cross-sectional view along line II-II of Figure 10, Figure 12(a) is a cross-sectional view along line II of Figure 9, and Figure 12(b) is a cross-sectional view showing an exploded unit rail section of Figure 12(a).

[0054] As shown in Fig. 8, the traveling rail GR is a rail that guides the movement of the drilling device A, and is laid on a concrete slab (floor) that intersects (is perpendicular to) the wall surface SS to be drilled of the structure S, extending along the wall surface SS. The total length of the traveling rail GR is, for example, about 9000 mm, and the width is, for example, about 600 mm.

[0055] The traveling rail GR is composed of, for example, three sets of unit rail parts GRU. The unit rail parts GRU are unit parts that make up the traveling rail GR, and the three sets of unit rail parts GRU have the same configuration. These three sets of unit rail parts GRU are installed side by side along the wall surface SS, and are installed in a state where the adjacent tip portions of the unit rail parts GRU lined up along the wall surface SS are connected to each other. However, the number of unit rail parts GRU needs to be at least two, and is not limited to three, and various modifications are possible.

[0056] As shown in Figures 8 and 9, the unit rail section GRU includes a pair of long rail sections 90, 90, two connecting members (first connecting members) 91, 91, and four anchor members (fixing members) 92. The total length of the unit rail section GRU is, for example, about 3000 mm. Note that in Figures 8 and 9, the anchor members 92 are shown painted black to make the drawings easier to see.

[0057] 9 and 10, a pair of long rail sections 90, 90 are rail bodies of the traveling rail GR, and are installed extending along the wall surface SS, and are installed on the slab facing each other at a distance in a direction perpendicular to the wall surface SS. Near both longitudinal ends of the long rail section 90, for example, two through holes (fourth joint sections) 90h are provided. The through holes 90h are formed, for example, in a circular shape in a plan view, and have a diameter of, for example, about 9.5 mm.

[0058] 11, the long rail section 90 is made of, for example, an L-shaped steel material, and is installed on the slab SB with the crest side of the L-shaped steel material facing upward. By making the long rail section 90 out of an L-shaped steel material, a lightweight yet sturdy running rail GR can be constructed.

[0059] 10, inner protrusions (first protrusions) 90a, 90a are integrally formed on the inner long sides of each of the pair of long rail portions 90, 90. The inner protrusions 90a, 90a are formed to protrude inward from the opposing long sides of the pair of long rail portions 90, 90, toward the opposing sides of the pair of long rail portions 90, 90.

[0060] For example, two inner protrusions 90a are provided on each of the pair of long rail portions 90, for a total of four. The two inner protrusions 90a, 90a of one long rail portion 90 and the two inner protrusions 90a, 90a of the other long rail portion 90 are provided at the same position in the longitudinal direction of the long rail portions 90 so as to face each other.

[0061] The length X1 from the longitudinal tip of the long rail portion 90 to the inner protrusion 90a is, for example, about 750 mm, and the length X2 between two adjacent inner protrusions 90a, 90a along the longitudinal direction of the long rail portion 90 is, for example, about 1500 mm. Each inner protrusion 90a is formed, for example, in a rectangular shape in a plan view, and has a thickness, for example, of about 6 mm.

[0062] 11(a) and 12, a protrusion (second mating portion) 90ap protruding upward from the upper surface of each inner protrusion 90a is integrally formed with the inner protrusion 90a. This protrusion 90ap is formed, for example, in a conical shape, and its protrusion height is, for example, about 14 mm, and its diameter is, for example, about 19 mm.

[0063] 9 and 10, outer protrusions (second protrusions) 90b are integrally formed on the outer long sides of each of the pair of long rail portions 90. The outer protrusions 90b are provided so as to protrude outward from the outer long sides of each of the pair of long rail portions 90.

[0064] For example, two outer protrusions 90b are provided on each of the pair of long rail portions 90, for a total of four. The positions of the outer protrusions 90b, 90b in the longitudinal direction of the long rail portion 90 are the same as the positions of the inner protrusions 90a, 90a in the longitudinal direction of the long rail portion 90. The outer protrusions 90b are formed, for example, in a rectangular shape in a plan view, and have a thickness of, for example, about 6 mm.

[0065] As shown in Figures 10, 11(a), and 12, each outer protrusion 90a has a through-hole (first through-hole) 90bh that penetrates through its upper and lower surfaces. The through-hole 90bh is formed, for example, in a circular shape in a plan view. An anchor member 92 (see Figure 12(a)) is inserted into the through-hole 90bh. That is, as shown in Figure 12(a), the pair of long rail portions 90 are detachably fixed to the slab SB by driving the anchor member 92 into the slab SB through the through-hole 90bh of the outer protrusion 90b.

[0066] In this embodiment, the anchor member 92 is configured as a screw-type anchor member made of, for example, steel, and is detachably screwed into the slab SB. Therefore, the anchor member 92 can be attached and detached relatively easily, and therefore the pair of long rail portions 90, 90 can also be attached and detached relatively easily.

[0067] 9, 10, and 11(b), a pair of spare outer protrusions (third protrusions) 90c are integrally provided on the outer long sides of each of the pair of long rail portions 90. The spare outer protrusions 90c are provided so as to protrude outward from the outer long sides of each of the pair of long rail portions 90.

[0068] For example, two outer protrusions 90c are provided on each of the pair of long rail portions 90, for a total of four. The positions of the outer protrusions 90c, 90c in the longitudinal direction of the long rail portion 90 are different from the positions of the outer protrusions 90b, 90b in the longitudinal direction of the long rail portion 90. The outer protrusions 90c are formed, for example, in a rectangular shape in a plan view, and have a thickness of, for example, about 6 mm.

[0069] As shown in FIGS. 9, 10, and 11(b), each outer protrusion 90c has a through-hole (second through-hole) 90ch penetrating its upper and lower surfaces. The through-hole 90ch is formed, for example, in a circular shape in plan view. The through-hole 90ch is a hole into which an anchor member 92 (see FIG. 12(a)) is inserted. This is because, in some cases, reinforcing bars or the like are embedded in the slab SB directly below the through-hole 90bh in a given outer protrusion 90b, making it impossible to drive the anchor member 92. In such cases, the anchor member 92 can be driven into the slab SB through the through-hole 90ch in a spare outer protrusion 90c instead of the given outer protrusion 90b, thereby fixing the long rail portion 90.

[0070] Here, Fig. 13 is an enlarged plan view of a unit rail portion showing an example in which anchor members are arranged on spare outer protrusions, Fig. 14(a) is a cross-sectional view taken along line II in Fig. 13, and Fig. 14(b) is a cross-sectional view taken along line III-III in Fig. 13. In Fig. 13, anchor members 92 are shown painted black to make the drawing easier to see.

[0071] 13 illustrates a case where the anchor member 92 cannot be driven below the upper left outer protrusion 90b. In this case, as shown in FIGS. 13 and 14, instead of the through-hole 90bh of the upper left outer protrusion 90b, the anchor member 92 is driven into the slab SB through the through-hole 90ch of the adjacent spare outer protrusion 90c. This allows the long rail portion 90 to be detachably fixed to the slab SB.

[0072] Also, as shown in Figures 9, 12, 13 and 14(a), the connecting members 91, 91 that constitute the unit rail section GRU extend in a direction intersecting (perpendicular to) the pair of long rail sections 90, 90, and are installed in a detachable state between the pair of long rail sections 90, 90 so as to bridge the pair of long rail sections 90, 90.

[0073] Each connecting member 91, 91 determines the distance between the pair of long rail portions 90, 90 and connects the pair of long rail portions 90, 90. The connecting member 91 is made of, for example, a strip-shaped steel plate in a plan view, and has a total length of, for example, about 510 mm, a width of, for example, about 50 mm, and a thickness of, for example, about 6 mm.

[0074] Through-holes (first mating portions) 91h penetrating the upper and lower surfaces are provided near both longitudinal ends of the connecting member 91. The through-holes 91h are formed, for example, in a circular shape in a plan view, and their diameter is larger than the diameter of the protruding portions 90ap described above, for example, about 19.5 mm.

[0075] Such a connecting member 91 is installed with both longitudinal ends thereof partially overlapping the inner protruding portions 90a, 90a of the pair of long rail portions 90, 90 in a plan view, and is detachably attached by fitting the protruding portions 90ap, 90ap of the inner protruding portions 90a, 90a of the pair of long rail portions 90, 90 into through holes 91h, 91h near both ends of each connecting member 91, 91. Therefore, the connecting member 91 can be attached and detached relatively easily.

[0076] 15(a) is an enlarged plan view of the area P surrounded by a dashed line at the tip of the long rail section in FIG. 8, FIG. 15(b) is a plan view of the back side of the connecting member in FIG. 15(a), FIG. 15(c) is a side view of the connecting member in FIG. 15(b), FIG. 16(a) is an enlarged plan view of the tip of the long rail section with the connecting member in FIG. 15(a) removed, FIG. 16(b) is a cross-sectional view taken along line IV-IV in FIG. 16(a), FIG. 17(a) is a cross-sectional view taken along line IV-IV in FIG. 15(a), and FIG. 17(b) is a cross-sectional view showing the parts in FIG. 17(a) disassembled.

[0077] As shown in Figures 8, 15(a), and 16(a), adjacent long rail sections 90, 90 in the longitudinal direction of the unit rail section GRU are installed with their leading ends butted against each other, and are connected to each other by a pair of connecting members 93, 93, as shown in Figures 8 and 15(a). Note that a reinforcing member 94 shown in Figure 16 is a member for maintaining the L-shape of the long rail section 90, and is joined so as to connect the left and right slopes of the long rail section 90.

[0078] 15(a), 15(b), and 15(c), the connecting member 93 is made of, for example, a short, strip-shaped steel plate in a plan view, with a total length of, for example, about 90 mm, a width of, for example, about 20 mm, and a thickness of, for example, about 6 mm. As shown in FIGS. 15(b) and 15(c), protrusions (third mating portions) 93p, 93p are integrally formed on the back surface of the connecting member 93 (the surface facing the long rail portion 90) near both longitudinal ends. The protrusions 93p are formed, for example, in a conical shape, with a protruding height of, for example, about 12 mm and a diameter of, for example, about 9 mm, which is smaller than the diameter of the through-hole 90h of the long rail portion 90.

[0079] 16 and 17, such a connecting member 93 is detachably attached by fitting the protrusions 93p of the connecting member 93 into the through holes 90h of the adjacent long rail portions 90 along the longitudinal direction of the traveling rail GR, as shown in Fig. 17(a). The long rail portions 90 are connected together by the attachment of the connecting member 93. Because the connecting member 93 is simply fitted together, it can be attached and detached relatively easily.

[0080] In this embodiment, the running rail GR can be carried and assembled in a disassembled (dismantled) state into a pair of long rail sections 90, 90, a connecting member 91, an anchor member 92, and a connecting member 93, so that the running rail GR can be easily installed at the drilling site.

[0081] Next, an example of a hole drilling method using the hole drilling device A will be described with reference to FIGS.

[0082] FIG. 18(a) is a plan view of the traveling rail and the drilling device during drilling work, and FIG. 18(b) is a plan view of the traveling rail and the drilling device after the process of FIG. 18(a).

[0083] First, as shown in Figure 18(a), a traveling rail GR is laid on the slab at the drilling site. The traveling rail GR has, for example, three sets of unit rail sections GRU1, GRU2, and GRU3 (GRU). The three sets of unit rail sections GRU1, GRU2, and GRU3 (GRU) are installed side by side along the wall surface SS of the structure S and are connected to each other.

[0084] Here, if the components of the traveling rail are fixed together, if the drilling range is long, the overall length of the traveling rail will be long, making it difficult to transport and install the traveling rail at the drilling site. This is particularly difficult when the drilling site is narrow. In contrast, in this embodiment, the components of the traveling rail GR can be transported to the drilling site in a disassembled state and assembled, making it easy to install the traveling rail GR at the drilling site.

[0085] Next, the drilling device A is mounted on the unit rail part GRU1 at the front of the traveling rail GR, and a hole H is drilled in the structure S as described above. After that, when the drilling work on the unit rail part GRU1 is completed, the drilling device A is moved onto the adjacent unit rail part GRU2, as shown in Figure 18(b).

[0086] Next, Figure 19(a) is a plan view of the traveling rail and the drilling device after the process of Figure 18(b), and Figure 19(b) is a plan view of the traveling rail and the drilling device after the process of Figure 19(a).

[0087] After moving the drilling device A to the unit rail section GRU2 as described above, as shown in Figure 19(a), the unit rail section GRU1 is disassembled (dismantled) into a pair of long rail sections 90, 90, connecting members 91, 91, anchor member 92, and connecting member 93, and then transported in disassembled form to the rearmost end of the running rail GR. As a result, the unit rail section GRU1 can be transported in a relatively small and light state, making it relatively easy to transport even in a narrow drilling site. Note that a filler material is filled in the hole where the anchor member 92 was removed.

[0088] Next, as shown in FIG. 19(b), a drilling operation is carried out on the unit rail GRU2 by the drilling device A, and the unit rail section GRU1 that has been carried to the rearmost end of the traveling rail GR is assembled.

[0089] As described above, by repeating the drilling operation by the drilling device A and the installation (disassembly, transportation and assembly) of the unit rail parts GRU of the traveling rail GR, multiple holes are drilled throughout the drilling range of the structure S.

[0090] In this way, in this embodiment, the unit rail sections GRU1 can be assembled simultaneously with the drilling work of the structure S, so that work efficiency does not drop significantly even if the unit rail GRUs are disassembled, transported, and assembled.

[0091] In addition, since the running rail GR can be disassembled, even at drilling sites with long drilling ranges, long running rails are not required and at least two sets of unit rail parts GRU can be used, thereby reducing the cost of the running rail GR.

[0092] Furthermore, even if the drilling range length varies from drilling site to drilling site, there is no need to prepare special running rails for each drilling range length; at least two sets of unit rail sections GRU can accommodate various drilling range lengths, so it is possible to flexibly respond to differences in drilling range length from drilling site to drilling site.

[0093] In the above example, a case has been described in which drilling work on the middle unit rail section GRU2 begins after the leading unit rail section GRU1 has been transported to the rear end of the running rail GR, but this is not limited to this. For example, while drilling work is being carried out on the middle unit rail section GRU2, the leading unit rail section GRU1 may be disassembled (dismantled) and transported to the rear end of the running rail GR and assembled at the same time. In this case, the leading unit rail section GRU1 is disassembled (dismantled), transported, and assembled while drilling work is being carried out on the middle unit rail section GRU2, thereby further improving work efficiency compared to the above case.

[0094] The invention made by the inventor has been specifically described above based on the embodiments, but the embodiments disclosed in this specification are illustrative in all respects and are not limited to the disclosed technology. In other words, the technical scope of the present invention should not be interpreted restrictively based on the description of the above embodiments, but should be interpreted solely in accordance with the claims, and includes technologies equivalent to the technologies described in the claims and all modifications that do not deviate from the gist of the claims.

[0095] For example, in the above embodiment, a running rail is constructed using an L-shaped long rail section, but this is not limited to this and various modifications are possible. For example, a running rail may be constructed by placing a T-shaped long rail section upside down on a slab.

[0096] Furthermore, in the above embodiment, the case where the protrusion 90ap provided on the inner protrusion 90a is engaged with the through hole 91h provided in the connecting member 91 is described, but this is not limited to this, and for example, a through hole or recess provided on the inner protrusion 90a may be engaged with a protrusion provided near both longitudinal ends of the connecting member 91.

[0097] In addition, in the above embodiment, a case has been described in which the through hole 90h provided at both longitudinal ends of the long rail portion 90 is engaged with the protrusion 93p provided on the connecting member 93, but this is not limited to this, and for example, the protrusion provided at both longitudinal ends of the long rail portion may be engaged with a through hole or recess provided on the connecting member 93.

[0098] Furthermore, in the above embodiment, the invention has been described as being applied to a large drilling device having a mechanism for moving a drilling member such as a drifter 30 in the vertical direction and a mechanism for moving it laterally, but this is not limited to this and the invention can also be applied to a small drilling device, for example, which has a mechanism for moving the drilling member only in the vertical direction and the lateral movement of the drilling member is achieved by moving the entire device along a running rail. [Industrial Applicability]

[0099] The above explanation shows the case where the drilling device of the present invention is applied to a running rail for a drilling device that drills holes in existing concrete structures to insert shear reinforcing bars, but the present invention is not limited to this and can also be applied to running rails for devices other than drilling devices that require the device to move along the wall surface while maintaining the distance between the wall surface of the structure and the device with relatively high accuracy. [Explanation of symbols]

[0100] 10 Main frame 11 Girder material 12 braces 13 Pillar material 14 Guide rail 20 Lifting frame 21 Frame Rod 30 Drifter 31-bit 32 Rod 33 Drifter body 40 Horizontal member 41 Guide rail for traversing 42 Transverse Bodies 43 Traverse motor 44 Ball screw 50 Moving member 51 Advance / retreat guide rail 52 Slider 53 Advance / retreat motor 54 endless belt 60 Chain 60a First Chain 60b Second Chain 61 Lift motor 61a drive sprocket 62, 62a, 62b, 62c, 62d, 62e sprockets 70 Reaction force transmission section 71 Suction pad 72 Slide jack 81 Traction motor 82 Laura 82a Drive roller 82b driven roller 83 Belt 84 Traveling drive shaft 90 Long rail section 90a: inner protrusion (first protrusion) 90ap protrusion (second joint) 90b Outer protrusion (second protrusion) 90bh Through hole (first through hole) 90c Spare outer protrusion (third protrusion) 90ch through hole (second through hole) 90h Through hole (fourth joint) 91 connecting member (first connecting member) 91h Through hole (first joint) 92 Anchor member (fixing member) 93 Connecting member (second connecting member) 93p protrusion (third joint) 94 Reinforcement member A Drilling equipment H hole R shear reinforcement steel S structure SS Wall SB Slab GR running rail GRU, GRU1, GRU2, GRU3 unit rail section

Claims

1. At least two sets of unit rail portions are installed side by side along a floor portion that intersects with a wall surface to be drilled, a pair of long rail portions that are members that constitute the unit rail portion and extend along the wall surface and are installed on the floor portion in a state where they face each other; a pair of first protrusions that are integrally formed on each of the pair of long rail portions and protrude inward from each of the pair of long rail portions toward the opposing sides of the pair of long rail portions; a pair of second protrusions integrally formed on each of the pair of long rail portions and protruding outward from each of the pair of long rail portions; a first through hole provided to penetrate through upper and lower surfaces of the second protrusion; a fixing member that constitutes the unit rail portion and is installed on the floor portion through the first through-hole of each of the pair of second protrusions, and that fixes the pair of long rail portions to the floor portion in a detachable manner; a first connecting member that is a component constituting the unit rail portion, is provided between the pair of long rail portions, is detachably attached to the pair of first protrusions, and connects the pair of long rail portions to each other; a second connecting member detachably attached to each of the tip ends of the long rail portions of the unit rail sections adjacent to each other along the wall surface, connecting the long rail portions of the unit rail sections to each other; A rail for a drilling device, comprising:

2. A rail for a drilling device as described in claim 1, characterized in that the first connecting member is attached to the first protruding portion in a detachable manner by engaging a first mating portion provided on the first connecting member with a second mating portion provided on the first protruding portion.

3. A rail for a drilling device as described in claim 1, characterized in that the second connecting member is attached to the long rail portion in a detachable manner by engaging a third mating portion provided on the second connecting member with a fourth mating portion provided at the tip of the long rail portion.

4. A rail for a drilling device as described in claim 3, characterized in that the first connecting member is attached to the first protruding portion in a detachable manner by engaging a first mating portion provided on the first connecting member with a second mating portion provided on the first protruding portion.

5. A rail for a drilling device described in any one of claims 1 to 4, characterized in that the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

6. A rail for a drilling device described in any one of claims 1 to 4, characterized in that the pair of long rail portions are provided with a pair of third protrusions protruding outward from each of the pair of long rail portions at positions different from the second protrusions, and the pair of third protrusions are provided with second through holes that penetrate the upper and lower surfaces of the third protrusions and into which the fixing member is inserted.

7. A rail for a drilling device as described in claim 6, characterized in that the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

8. 5. A rail for a drilling device according to claim 1, wherein the fixing member is constituted by a screw-type anchor member.

9. A rail for a drilling device as described in claim 8, characterized in that the pair of long rail portions are made of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

10. A rail for a drilling device as described in claim 8, characterized in that the pair of long rail portions are provided with a pair of third protrusions protruding outward from each of the pair of long rail portions at positions different from the second protrusions, and the pair of third protrusions are provided with second through holes that penetrate the upper and lower surfaces and into which the fixing member is inserted.

11. A rail for a drilling device as described in claim 10, characterized in that the pair of long rail portions are constructed of L-shaped steel material and are installed on the floor portion with the mountain side of the L-shaped steel material facing upward.

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