JP3486025B2 - Rock bolt driving machine and rock bolt driving method using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rock bolt driving machine suitable for driving a rock bolt for reinforcing a slope such as a tunnel entrance, a dam, a side wall of a road, and the like. The present invention relates to a method of placing a rock bolt used.

[0002]

2. Description of the Related Art As is well known, when rock or earth and sand ground is excavated to form a slope, in order to prevent the slope from collapsing,
The slope is reinforced by spraying concrete, forming a lattice-shaped concrete frame (so-called free frame) along the slope, or placing a rock bolt. At this time, the rock bolt is not only placed by itself but also used in combination with shotcrete or a free frame.

Conventionally, in order to drive a rock bolt on a slope, a work scaffold is first constructed along the slope, and then a rock drill is installed facing the slope to drive the rock bolt. Perforate the holes. Then, insert a mortar injection hose into the bored hole, fill the mortar up to the mouth of the hole,
The lock bolt is fixed by inserting the lock bolt steel and then attaching the bearing plate and the nut to the lock bolt steel at the mouth of the hole.

[0004]

However, the conventional rock bolt driving method as described above has the following problems. First of all, since work scaffolds must be installed on the entire slope, it takes a lot of time and money to assemble and remove the scaffolds after the completion of the work, which is an obstacle to shortening the construction period. Also, a rock drill is used for drilling holes for placing rock bolts, but the operator must perform all the movements and operations of the rock drill,
This work is a difficult task in high places. In recent years, in order to solve this problem, a work vehicle equipped with a boom has been developed and put into practical use with a drilling machine.
As for mortar filling and rock bolt insertion work other than drilling, workers still work on the work platform, and there is room for improvement in terms of work efficiency, safety, work environment, etc. Is left. The present invention has been made in consideration of the above points, and aims to improve the efficiency of the work of placing the lock bolt on the slope, shortening the construction period, reducing costs, improving safety and working environment. An object of the present invention is to provide a lock bolt driving machine that can be designed and a rock bolt driving method using the same.

[0005]

The invention according to claim 1 is
A guide rail is swingably provided on a carriage that is freely movable and traveling, and a lock bolt driving device for driving a lock bolt on a slope is movably provided along the guide rail via a slide base . The rock bolt driving device has a drilling mechanism for drilling a hole for driving a rock bolt on the slope, a filling mechanism for filling mortar in the drilled hole, and the inside of the hole. An insertion mechanism for inserting a lock bolt into the hole, the punching mechanism, and a filling mechanism.
The insertion mechanism and the insertion mechanism alternately in the same position.
Slide slide in a direction orthogonal to the axis of the guide rail.
The lock bolt driving device that is movably provided
However, with the advancing / retreating cylinder to the slide base
It is characterized by being attached to a support bar that can be moved forward and backward.

[0006]

According to a second aspect of the present invention, in the lock bolt driving machine according to the first aspect , the guide rail is configured to be extendable / contractible along the axial direction thereof.

The invention according to claim 3 is the invention according to claim 1 or
The lock bolt is placed on the slope by the lock bolt setting device described in 2.
When the rock bolt driving machine is driven , first, the rock bolt driving machine is positioned with the guide rails facing each other substantially parallel to the slope, and then the position where the slope is determined by the lock bolt driving device. Then, the lock bolt driving device is moved to a predetermined dimension along the guide rail, and thereafter, the lock bolt driving device is driven by the lock bolt driving device and the lock bolt driving device is driven. It is characterized in that a predetermined number of lock bolts are driven on the slope by repeating the movement of the installation device along the guide rail.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION First and second embodiments of a lock bolt driving machine and a rock bolt driving method using the same according to the present invention will be described below with reference to FIGS. 1 to 10. To do. [First Embodiment] First, an example of a rock bolt driving machine for driving a rock bolt on a slope having a height of about 7 m or less will be described.

As shown in FIG. 1 to FIG. 4, a rock bolt driving machine 1 is provided with a crawler 2a and a trolley 2 which is movable and movable, and is provided with a revolving unit 3 which is revolvable in a horizontal plane.
A guide rail 4 is provided in the front part of the turning portion 3, and a lock bolt driving device 5 for driving a lock bolt on the guide rail 4 is provided.

The guide rail 4 includes a guide rail main body 7 made of a steel material having an H-shaped cross section, and a swivel portion 3 via a base 8.
It has a configuration provided in.

The base 8 is pivotally supported by a supporting portion 9 provided on the front portion of the revolving portion 3 so as to be swingable within a vertical plane. And, the arm 10 is integrally provided on the base 8,
A guide rail swing cylinder 11 that is freely extendable and retractable is provided between the arm 10 and the revolving unit 3. As a result, when the guide rail swing cylinder 11 is driven to expand and contract, the base 8 swings integrally with the arm 10 in the vertical plane.

As shown in FIG. 5, holding portions 8a, 8a are formed on one surface side of such a base 8, and the holding portions 8a, 8a form the flange portion 7a of the guide rail main body 7.
Both ends of the are held slidably.
Then, as shown in FIG. 1, between the bracket 13 provided at the intermediate portion of the guide rail main body 7 and the base 8, the guide rail advance / retreat driven to extend and retract in a direction parallel to the axis of the guide rail main body 7. A cylinder 14 is provided. As a result, when the guide rail advancing / retreating cylinder 14 is driven to expand / contract, the guide rail main body 7 moves forward / backward in the axial direction.

Sheaves 16, 16 are provided on both ends of the guide rail main body 7, and an endless drive belt 17 is wound between the sheaves 16, 16. The drive belt 17 is circularly driven in a predetermined direction by a drive device 18 arranged at the tip of the guide rail body 7. A slide base 20 is integrally attached to the drive belt 17. Slide base 20
Are slidably provided on the guide rail body 7. As a result, when the drive belt 17 is driven, the slide base 20 slides along the guide rail main body 7.

The lock bolt driving device 5 is
The slide base 20 is attached as follows. An arm 21 is pivotally supported on a bracket 20a formed on the slide base 20 so as to be swingable about a shaft 22 in a vertical plane. Between the arm 21 and the slide base 20, an oscillating cylinder 23 which can be freely extended and retracted.
The arm 21 is swung when the swing cylinder 23 is driven to expand and contract.

The arm 21 is provided with an advancing and retracting cylinder 24 which is driven to extend and retract along the same direction as the axis of the arm 21. A support bar 25 having a fixed length is provided at a tip of the telescopic rod 24a of the advancing / retreating cylinder 24 with a fitting 26.
Is attached through. And this support bar 2
5 is a telescopic rod 24 when the advancing / retreating cylinder 24 is telescopically extended.
It is adapted to be driven back and forth integrally with a.

At the front end and the rear end of the support bar 25,
Slide members 30, 30 extending in a direction orthogonal to the axis of the support bar 25 are provided on the upper surface thereof.

As shown in FIG. 3, the frame 5a of the lock bolt driving device 5 is provided on the slide members 30 and 30 and is slidable in the direction along them. On the frame 5a, a guide shell (drilling mechanism) 31 for drilling a hole at a position where a lock bolt should be placed.
A mortar filling mechanism (filling mechanism) 32 that fills the drilled hole with mortar, and a lock bolt insertion mechanism (insertion mechanism) 33 that inserts a lock bolt into the hole are spaced apart from each other by a predetermined distance. It is provided parallel to the axis line of. As a result, the guide shell 31, the mortar filling mechanism 32, and the lock bolt insertion mechanism 33 are slidable in the horizontal direction orthogonal to their respective axes, and can be alternately positioned at the same position.

As shown in FIG. 2, the guide shell 31
Is the drifter 3 along the guide member 35 having a constant length.
6 is driven back and forth. The drifter 36 is configured to generate a striking / rotating motion on the bit 36a provided at the tip by a drive source (not shown). With the guide shell 31 having such a structure, the bit 36a is struck while the drifter 36 is advanced.
By rotating, a hole for driving the lock bolt is formed at a predetermined position on the slope.

A mortar hose (not shown) for feeding a hardening filler such as mortar is connected to the mortar filling mechanism 32, and the mortar hose is connected to a mortar injection pump (not shown) for feeding mortar. There is.

As shown in FIG. 3, the lock bolt insertion mechanism 33 has a feeding portion 37 for feeding the lock bolt steel material (lock bolt) R forward and a plurality of lock bolt steel materials R.
And a supply unit 38 that supplies the same to the sending unit 37 as needed. The supply portion 38 is provided with an endless belt-shaped lock bolt holder 39, and the lock bolt holder 39 holds a plurality of lock bolt steel materials R. Then, the lock bolt holder 39 is driven at a predetermined pitch, and the held lock bolt steel materials R are sequentially delivered to the delivery section 37. Further, the lock bolt inserting mechanism 33 is provided with a fixing member attaching mechanism (not shown) for attaching a fixing bearing plate to the lock bolt steel material R fed from the feeding portion 37 and further fixing the nut. .

Next, a method of driving a rock bolt on the slope N by using the lock bolt driving machine 1 having the above-mentioned structure will be described. First, as shown in FIG. 1, the lock bolt driving machine 1 is installed at a position facing the slope N.

Then, the turning part 3 is turned, and
The guide rail main body 7 is swung by the guide rail swing cylinder 11 to position the guide rail main body 7 parallel to the slope N. Further, the guide rail main body 7 is advanced and retracted in the axial direction by the guide rail advance / retreat cylinder 14 so that the entire length of the guide rail main body 7 faces from the lowermost part to the uppermost part of the slope N on which the lock bolt is to be driven. Let

Next, the support bar 25 is attached to the swing cylinder 23.
To make it orthogonal to the slope N. Further, the drive belt 17 is circularly driven to move the slide base 20,
The rock bolt driving device 5 is opposed to, for example, the bottom of the slope N. In this state, the support bar 25 is advanced by the advancing and retracting cylinder 24, and the guide shell 31, the mortar filling mechanism 32,
The tip of the lock bolt insertion mechanism 33 is located near the slope N.

Subsequently, the frame 5a of the lock bolt driving device 5 is slid on the slide members 30, 30 in the horizontal direction parallel to the slope N, and the guide shell 31 is first moved to the position where the lock bolt should be driven. Face each other. Then, in this state, the bit 36a is struck and rotated while advancing the drifter 36 to make a hole in the slope N. Then, after forming a hole having a predetermined depth, the drifter 36 is retracted.

Then, the frame 5a of the lock bolt driving device 5 is slid by the slide members 30 and 30 so that the mortar filling mechanism 32 faces the perforated hole. Then, a mortar hose (not shown) is inserted into the bored hole to fill the hole with mortar.

Finally, the frame 5a of the lock bolt driving device 5 is slid on the slide members 30, 30 so that the lock bolt insertion mechanism 33 faces the hole filled with mortar. Then, the lock bolt steel material R is supplied from the supply portion 38 to the delivery portion 37, and in the delivery portion 37, the lock bolt steel material R is delivered forward and is inserted and placed into the hole filled with the mortar. At this time, if necessary, the lock bolt steel materials R can be sequentially supplied from the sending-out portion 37, and a plurality of lock bolt steel materials R can be added and placed. Next, a fixing bearing plate is attached to the lock bolt steel R inserted into the hole by a fixing member attachment mechanism (not shown), and a nut is attached to fix the lock bolt steel R. Let

After the lock bolts have been placed at one location in this way, the slide base 20 is slid along the guide rails 4 by the drive belt 17, and the lock bolt placing device 5 and then the lock bolts are placed. Move it to the position where it should be installed. At this position, similarly to the above, the drilling work by the guide shell 31, the mortar filling work by the mortar filling mechanism 32, and the insertion work of the lock bolt steel material R by the lock bolt inserting mechanism 33 are sequentially performed, and the lock bolts are driven.

After that, each time the lock bolt driving device 5 is moved upward along the guide rail 4 by a predetermined dimension, the lock bolts are sequentially driven so that a predetermined number of the lock bolts are sloped. N will be driven in the direction along the guide rail 4 at predetermined intervals. After that,
The carriage 2 is moved to a position horizontally separated from the previously mounted lock bolt by a predetermined distance, and the lock bolt is similarly driven.

In the lock bolt driving machine 1 and the lock bolt driving method using the lock bolt driving machine 1 described above, the turning portion 3 of the carriage 2 is used.
A guide rail 4 is provided on the
A lock bolt driving device 5 including a guide shell 31, a mortar filling mechanism 32, and a lock bolt inserting mechanism 33 is slidably provided along the guide rail 4. Then, set the guide rail 4 to the slope N
The lock bolt driving device 5 is slid along the guide rail 4 in a state of being opposed to the rock bolt driving device, and the lock bolt driving device 5 is automatically driven by driving the rock bolt on the slope N. You can Therefore, a working scaffold for driving the lock bolt is not necessary at all.
As a result, in the past, the rock bolt could be placed only after the ground was excavated to form the slope N and then the work scaffold was constructed, whereas immediately after the slope N was formed, the lock bolt was formed. Since it can be installed, the construction period can be shortened and the loosening of the slope N can be minimized. Moreover, since work in high places can be reduced, work safety and work environment can be improved. Furthermore, such a rock bolt driving machine 1 is
Since a general-purpose hydraulic excavator machine is used as a base and the guide rail 4 and the lock bolt driving device 5 are attached to the base, it can be manufactured at low cost. Further, for example, if the excavator boom used for excavating the slope N is replaced with the guide rail 4 and the lock bolt driving device 5, it can be diverted as it is.

Moreover, the guide shell 31, the mortar filling mechanism 32, and the lock bolt inserting mechanism 33, which constitute the lock bolt driving device 5, can be alternately located at the same position. As a result, the lock bolts can be quickly driven in a row along the guide rails 4 without moving the guide rails 4, and the overall construction period can be shortened.

[Second Embodiment] Next, as a second embodiment of the lock bolt driving machine and the rock bolt driving method using the same according to the present invention, for example, a method with a height of 7 m or more is used. An example of a rock bolt driving machine having a structure in which a guide rail expands and contracts in order to drive a rock bolt on a surface will be described. Here, components common to the lock bolt driving machine 40 of the second embodiment and the lock bolt driving machine 1 shown in the first embodiment described below are denoted by the same reference numerals. However, the description is omitted.

As shown in FIGS. 6 to 9, in the lock bolt driving machine 40, a swingable guide rail 41 is provided on the turning portion 3 on the carriage 2 and the lock bolt is attached to the guide rail 41. Rock bolt driving device 42 for driving
It has a schematic configuration including.

The guide rails 41 are a pair of truss structure lower guide rails 4 arranged at a predetermined interval.
3, 43, and a pair of two upper guide rails 44, 44 slidably provided inside the lower guide rails 43, 43 in the axial direction. As a result, the guide rail 41 is fixed to the lower guide rails 43, 4
3, the upper guide rails 44, 44 are driven to expand and contract by an expansion device (not shown).

As shown in FIG. 10, the lower guide rails 43, 43 of the guide rail 41 are integrally joined to each other at the middle portion and the tip portion thereof by a connecting member 45, 45 having a substantially U-shaped cross section. , Which increases its overall rigidity. As shown in FIGS. 6 and 7, these lower guide rails 43, 43 are attached at their base ends to a base 46 that is swingably provided on the support portion 9 at the front of the swivel portion 3. There is.

The base 10 is integrally provided with the arm 10. The guide rail 41 is vertically extended by driving the guide rail swing cylinder 11 provided between the arm 10 and the revolving unit 3 to extend and contract. It is designed to swing inside.

Further, a bendable support column 48 is provided between the tip end portions of the lower guide rails 43, 43 and the swivel portion 3, and supports the tip end portions when the guide rail 41 is tilted. It is supposed to do. In addition, a ground plate 49 is attached to the base ends of the lower guide rails 43, 43 so that stability can be ensured when the guide rail 41 is tilted at an angle matching the slope N. Has become.

A slide base 50 is slidably provided between the upper guide rails 44, 44, and an arm 51 is swingable on a bracket 50a formed integrally with the slide base 50. Is supported by. The arm 51 swings by driving the swing cylinder 23 to expand and contract.

The arm 51 is provided with a lock bolt driving device 4
2, the guide shell 31 and the mortar filling mechanism 32
The lock bolt insertion mechanism 33 is provided slidably in the axial direction of the support bar 25 and the direction orthogonal thereto through the advancing / retreating cylinder 24 and the slide members 30, 30. As a result, these guide shells 31,
The mortar filling mechanism 32 and the lock bolt insertion mechanism 33 are
By slidably moving in the direction orthogonal to the respective axes, they can be alternately positioned at the same position.

Here, the lock bolt holder 39 'of the lock bolt insertion mechanism 33 can store a larger number of lock bolt steel materials R than the lock bolt holder 39 of the lock bolt driving machine 1 shown in FIG. Has become.

Next, a method of driving a rock bolt on the slope N by using the lock bolt driving machine 40 having the above-mentioned structure will be described. First, as shown in FIG. 6, the lock bolt driving machine 40 is installed at a position facing the slope N.

When the lock bolt is driven on the first step N1 of the slope N, first, the guide rail 41 is set in exactly the same manner as the lock bolt driving machine 1 shown in the first embodiment. While facing each other along the first step N1 of the slope N, the boring work by the guide shell 31, the mortar filling work by the mortar filling mechanism 32, and the insertion work of the lock bolt steel material R by the lock bolt inserting mechanism 33 are sequentially performed,
Place one rock bolt. Next, every time the lock bolt driving device 42 is moved upward by a predetermined dimension along the upper guide rail 44, the above operation is repeated to drive a predetermined number of lock bolts.

After that, the carriage 2 is moved and the lock bolt is similarly driven at a position horizontally separated from the previously mounted lock bolt by a predetermined distance.

In this way, after the lock bolt is driven on the entire surface of the first step N1 of the slope N, the guide rail 41 is extended so that the upper guide rail 44 faces the second step N2 of the slope N. . Then, the advancing / retreating cylinder 24 is actuated to move the lock bolt driving device 42 integrally with the support bar 25 to the slope N.
To the second stage N2. After that, in the same manner as described above, the drilling work by the guide shell 31, the mortar filling work by the mortar filling mechanism 32, and the work of inserting the lock bolt steel material R by the lock bolt inserting mechanism 33 are performed to set one lock bolt. Each time, the lock bolt driving device 42 is moved upward along the upper guide rail 44, and the lock bolt is driven on the entire surface of the second step N2 of the slope N.

In the lock bolt driving machine 40 and the rock bolt driving method using the rock bolt driving machine 40 described above, as in the lock bolt driving machine 1 of the first embodiment, the method is performed without constructing a work scaffold. Since the lock bolt can be automatically placed on the entire surface N, the rock bolt can be placed immediately after the slope N is formed to shorten the construction period.
It is possible to minimize the looseness of the slope N. further,
Since work in high places can be reduced, work safety can be improved. In addition, such a lock bolt driving machine 40 can be manufactured at low cost based on a general-purpose hydraulic excavator machine. Moreover, since the guide bolt 31, the mortar filling mechanism 32, and the lock bolt insertion mechanism 33 can be alternately located at the same position in the lock bolt driving device 42, the lock bolt can be quickly driven. Also in this respect, the entire construction period can be shortened.

Moreover, since the guide rail 41 is configured to be expandable and contractable, it is possible to continuously and automatically drive the lock bolt even on a high slope N having a plurality of steps.

In the second embodiment, the guide rail 41 has the two-step structure in which the upper guide rail 44 expands and contracts with respect to the lower guide rail 43, but of course, the structure can be expanded and contracted in more steps. Good. Further, as the expansion / contraction device for expanding / contracting the guide rail 41, various well-known devices used for ladders of ladder cars and the like may be applied, and the structure thereof is not limited. Further, in the first and second embodiments, each mechanism of the guide shell 31, the mortar filling mechanism 32, and the lock bolt 33 that constitute the lock bolt driving devices 5, 42 is not limited to the above. For example, as the lock bolt, a mechanism or the like may be adopted in which a continuous cable wire is inserted and placed while cutting it into appropriate lengths.

[0048]

As described above, according to the lock bolt driving machine according to the first aspect of the invention, the lock bolt driving apparatus can be slidably moved on the swingable guide rail provided on the carriage that is freely movable. The lock bolt driving device is configured to include a drilling mechanism for drilling a hole in the slope, a filling mechanism for filling the hole with mortar, and an inserting mechanism for inserting the lock bolt in the hole. There is. As a result, by sliding the lock bolt driving device along the guide rail and driving the lock bolt on the slope,
Lock bolts can be automatically placed on the slope without constructing a work scaffold. Therefore, the rock bolt can be driven immediately after the slope is formed to shorten the construction period, and the looseness of the slope can be minimized.
Further, work at high places can be reduced, and work safety and work environment can be improved. In addition, such a rock bolt driving machine can be manufactured at a low cost based on a general-purpose hydraulic excavator machine, and the shovel machine used for excavation of a slope can be diverted.

Further , the punching mechanism, the filling mechanism, and the inserting mechanism are integrally provided on the frame, and the frame is set to the axis of the guide rail so that the punching mechanism, the filling mechanism, and the inserting mechanism are alternately located at the same position. a direction slidably provided configured orthogonal, further lock bolt hitting設装
The cylinder is moved back and forth with respect to the slide base by the cylinder.
Made possible As a result, the drilling work, the filling work, and the insertion work can be performed successively in succession without moving the guide rail, and the lock bolt can be quickly placed. In this respect, the overall construction period can be shortened. You can

According to the lock bolt driving machine of the second aspect , the guide rail can be expanded and contracted. Accordingly, the lock bolt can be automatically placed even on a high slope having a plurality of steps, and the effect according to claim 1 can be similarly obtained.

According to the rock bolt driving method of the third aspect of the present invention , the lock bolt driving apparatus according to the first or second aspect of the present invention is arranged such that the guide rails of the lock bolt driving apparatus are positioned so as to face each other substantially in parallel with the slope. By repeating the driving of the lock bolts and the movement of the lock bolt driving device along the guide rails, a fixed number of the lock bolts are driven on the slope. As a result, the lock bolt can be automatically placed on the slope without constructing a work scaffold, which shortens the construction period, minimizes the looseness of the slope, and ensures safety and work efficiency. The environment can be improved.

[Brief description of drawings]

FIG. 1 is a view showing an example of a lock bolt driving machine according to the present invention and a rock bolt driving method using the same,
It is an elevation view which shows the state at the time of driving a rock bolt on the slope with the lock bolt driving machine.

FIG. 2 is an elevational view showing a state when the lock bolt driving machine is running.

FIG. 3 is a side view of FIG.

FIG. 4 is a plan view of FIG.

FIG. 5 is a cross-sectional view of a guide rail portion of the lock bolt driving machine.

FIG. 6 is a view showing another example of a lock bolt driving machine according to the present invention and a lock bolt driving method using the same, in which a lock bolt is driven on a slope by the lock bolt driving machine. It is an elevation view which shows the state at the time.

FIG. 7 is an elevational view showing a state of the lock bolt driving machine during traveling.

FIG. 8 is a side view of FIG. 7.

FIG. 9 is an elevational view of FIG. 7.

FIG. 10 is a cross-sectional view of a guide rail portion of the lock bolt driving machine.

[Explanation of symbols]

1,40 Lock bolt driving machine 2 Bogie 4,41 Guide rail 5,42 Lock bolt driving device 20,50 Slide base 24 Advance / retract cylinder 25 Support bar 31 Guide shell (piercing mechanism) 32 Mortar filling mechanism (filling mechanism) 33 Lock bolt insertion mechanism (Insertion mechanism) N Slope R Rock bolt Steel material (Lock bolt)

Front page continuation (72) Inventor Tsunekazu Kawai 1058 Yoshii, Yoshii-cho, Tano-gun, Gunma Prefecture Furukawa Kikai Metal Co., Ltd. (72) Yasunori Noshiro 1058 Yoshii-cho, Tani-gun, Gunma Prefecture Furukawa Kikai Metal Co., Ltd. (56) References JP-A-4-238960 (JP, A) JP-A-63-241300 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E21D 20/00

Claims (3)

(57) [Claims] 1. A guide rail is swingably provided on a movable carriage, and a lock bolt driving device for driving a lock bolt on a slope moves along the guide rail via a slide base. The rock bolt placing device is configured to be freely provided, and the rock bolt placing device forms a hole for placing a rock bolt on the slope and a filling mechanism that fills mortar into the bored hole. And an insertion mechanism for inserting a lock bolt into the hole , wherein the punching mechanism, the filling mechanism, and the insertion mechanism are at the same position.
So that they are positioned alternately in the axial direction of the guide rail.
The lock bolt driving device is provided so as to be slidable in a direction orthogonal to each other, and
Support that can be moved back and forth by a forward / backward cylinder
A rock bolt driving machine characterized by being attached to a bar . 2. The lock bolt driving machine according to claim 1 , wherein the guide rail is configured to be extendable / contractible along the axial direction thereof. 3. A lock bolt drive according to claim 1 or 2.
When driving the lock bolt on the slope by the setting device, first, the lock bolt driving machine is positioned so that the guide rail is opposed to the slope substantially in parallel, and then the lock bolt driving device is operated by the lock bolt driving device. A lock bolt is driven at a predetermined position on the slope, and then the lock bolt driving device is moved by a predetermined distance along the guide rail, and thereafter, the lock bolt driving device is driven by the lock bolt driving device. And a movement of the lock bolt driving device along the guide rail are repeated to drive a fixed number of lock bolts on the slope. .