JP2000141355A - Adapter for wire type cutter, cutting method using the same, and wire type cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten a preparatory operation before cutting in a wire type cutter which has a first motor means which rotatingly drive through a drive wheel an endless wire saw wound around the rotatably supported drive wheel and a part to be cut, and a tension maintaining means in which a slackness of the wire saw associated with the cutting advance is eliminated. SOLUTION: This cutter is equipped with a part to be installed to a swing arm 54 of a working machine for civil engineering building, and an installing part 32 for a wire type cutter. The installing part 32 is an adapter for a wire type cutter which can be selectively installed between a first installing posture wherein a wire type cutter main body 2 extends to a swing arm 54 side, and a second installing posture wherein a part wound around a cutting objective position of a wire saw 24 extends to the swing arm 54 side from the installing part 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotatably supported drive wheel, and an endless wire saw wound around a cutting target point and the drive wheel, which is rotated through the rotational motion of the drive wheel. The present invention relates to a wire-type cutting machine having a motor means for driving and a tension maintaining means for removing a slack of the wire saw caused by the progress of cutting, and a cutting method using the same.

[0002]

2. Description of the Related Art Conventionally, when such a wire type cutting machine is used, as shown in FIG.
A driving wheel 20 and a tension maintaining means 12,
The supported base member 4 at 18 is cut in advance at the cutting target location T.
In a state in which the driving wheel 120 and the tension maintaining means 112 are supported and fixed to a cutting target portion by using a screw hole formed by drilling in 1 and a bolt 4b or the like, as shown in FIG. When the machine main body 104 is fixedly installed on the ground or the like, and there is a large level difference between the cutting target portion T2 and the cutting machine main body 104 (in FIG. 17, the cutting target portion T2
Is located below the sea level and the cutting machine main body 104 is high above the sea level), the turning means 200 for changing the extending direction of the wire saw 24 between the cutting target point T2 and the cutting machine main body 104.
(Comprising a pulley or the like) was also used in a state where it was fixed to the cutting target location T2 using a screw hole and a bolt 210 or the like formed in advance by drilling the cutting target location T2. In any of the above cases, when an endless wire fitted with diamond beads or the like is used as the wire saw 24, the rotation of the wire saw 24 via the driving wheels 20, 120 rotated by the motor means 10, 110 is performed. Based on the above, even a high-strength structure such as reinforced concrete can be cut under conditions such as noise suppression.
Further, regarding the problem that the tension required for the wire saw 24 when cutting an object is insufficient based on the progress of cutting,
The tension maintaining means 12, 18;
This problem has been solved by the motor means 12 for gradually moving the positions 0 and 120 away from the cutting target portion, or the auxiliary pulley mechanism 18 for extending the rotation path of the wire saw 24 (if the auxiliary pulley mechanism 18 is detachably provided). At the same time, the wire saw 24 can be selectively wound around a part of the plurality of auxiliary pulley mechanisms 18 in order to adjust the rotation path of the wire saw 24).

[0003]

However, the preparatory work required in the above-described conventional cutting method, that is,
A base member 4 supporting the driving wheels and the tension maintaining means,
Alternatively, the switching means 200 for changing the direction in which the wire saw extends between the cutting target portion and the driving wheel is fixed to the cutting target portion using a screw hole and a bolt formed in advance by drilling the cutting target portion. The work to save is very complicated, and in particular, the cut portion is located at a high place as shown in the example shown in FIG. 16, or under the water surface (in this case, as shown in FIG. 17). In many cases, it is necessary to request a specialized diver.) In such a case, there is room for improvement because of the difficulty of the work. Further, the main tension maintaining means 12 of the wire type cutting machine generally includes a track 6 extending linearly and a track along the track 6 while rotatably supporting the driving wheel 20 as illustrated in FIG. The self-propelled unit 8 comprises a self-propelled unit 8 that reciprocates in
A mechanism is adopted in which the drive wheels 20 are gradually moved away from the cut target portion by traveling on the track 6 having a predetermined length. Therefore, if the self-propelled unit 8 reaches the terminal end 6b on the track 6, it is no longer possible to remove the looseness of the wire saw 24 caused by the cutting. The driving wheel 20 of the cutting machine 2 and the base member 4 supported by the tension maintaining means 12 are fixed to the cut target portion using screw holes and bolts 4A formed in advance by drilling the cut target portion. In this case, each time the self-propelled unit 8 reaches the terminal 6b on the track 6, as shown in FIG.
A part of the wire saw 24 was cut off and reconnected by "staking" or the like again, thereby shortening the entire length of the wire saw 24 to recover the tension required for the wire saw 24.
For this reason, depending on the size of the portion to be cut, a complicated operation of dividing the wire saw 24 at two locations and re-caulking is often required. Since many diamonds, such as beads, are used in wire saws for the purpose of improving cutting performance, they are expensive even though they are fragments.) .

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus capable of reducing the preparatory work before cutting work, in view of the above-mentioned drawbacks of the above-described prior art wire type cutting machine and cutting method, and a preparatory work. An object of the present invention is to provide a cutting method with reduced work. Further, another object of the present invention is to use a bolt or the like which is drilled and implanted in advance in a cutting target portion with a driving wheel of a wire-type cutting machine and a base member supported by a tension maintaining means. It is an object of the present invention to provide a device that does not need to wastefully discard a wire saw and a cutting method in a case where the operation is performed in a fixed state.

[0005]

In order to achieve the above object, an adapter for a wire-type cutting machine according to a first aspect of the present invention comprises a rotatably supported drive wheel, a cutting target portion and the drive wheel. A first motor means for rotating and driving the endless wire saw wound through the rotating motion of the drive wheel, and a tension maintaining means for removing the slack of the wire saw caused by the progress of cutting. It is used in cooperation with a wire-type cutting machine having a mounting portion to be mounted on the free end of the swing arm of the working machine for civil engineering, and a mounting portion for mounting the wire-type cutting machine, The mounting portion includes a first mounting posture in which a wire-type cutting machine main body including the driving wheel extends from the mounting portion toward the swing arm, and a portion wound around the cutting target portion of the wire saw. To the swing arm side from That it is characterized constituted by being selectively attachable configured between the second mounting position.

If the adapter for a wire type cutting machine according to the first aspect of the present invention having such a characteristic configuration is used,
The wire-type cutting machine can be attached to the free end of the swing arm of the civil-construction working machine through the adapter for the wire-type cutting machine. It is possible to arrange the wire-type cutting machine attached to the swinging arm so that it faces the cutting target part by moving operation or propulsion operation of the civil engineering work machine itself (even if this cutting part is at a high place or , Even under water). Then, the above-mentioned state in which the wire-type cutting machine faces the cutting position (this may be a state in which the adapter is pressed against the cutting target place, or a state in which the adapter and the wire-type cutting machine are suspended from the cutting target place in the air. If the swing arm is fixed in), a state appears as if the wire-type cutting machine is fixed to the cutting target, and the wire saw is rotationally driven with this swing arm fixed to perform cutting. Can be implemented. As a result, complicated operations such as fixing the drive wheel and the base member supported by the tension maintaining means to the cutting target portion using a screw hole and a bolt formed by previously drilling the cutting target portion are performed. Without performing, and even if the place where these cumbersome work is forced to be high places or under the water,
The advantage is that the object can be easily cut. (The advantage that the danger of falling of equipment and tools at high altitude is significantly reduced, and the advantage that there is no need for a specialized diver in the case of underwater surface is required.) Especially large).

Further, the wire-type cutting machine mounted on the free end of a swing arm of a working machine for civil engineering and construction using the adapter for a wire-type cutting machine according to claim 1 of the present invention having the above characteristic configuration. If the self-propelled unit supporting the driving wheels travels on the track as the cutting progresses and finally reaches the end on the track, as illustrated in FIGS. 8 and 9, The self-propelled unit 8 can be used if the wire-type cutting machine itself is moved away from the cutting target together with the adapter by the swing operation of the boom and the swing arm of the working machine for civil engineering or the propulsion operation of the working machine itself for civil engineering. The cutting operation can be restarted while traveling from the starting end 6a to the end 6b on the track 6. When the size of the cut target portion is large, the self-propelled unit 8 is cut while traveling from the start end 6a to the end 6b on the track, and the self-propelled unit 8 reaches the end 6b on the track. At this time, the wire type cutting machine is freely moved away from the cutting target by operating the swinging arm or the like of the civil engineering work machine, and the self-propelled unit 8 is moved from the start end 6a on the track 6 toward the end 6b. A series of operations "restarting the disconnection operation" may be repeated many times (as many times as necessary). As a result, it is possible to complete an effective cutting while maintaining the tension of the wire saw without complicated work of shortening the length of the wire saw during the cutting operation, regardless of the size of the cut target portion. In addition, there is an effect that it is not necessary to discard expensive wire saw fragments.

Further, the mounting portion provided in the adapter for a wire-type cutting machine according to the first aspect of the present invention having the above-mentioned characteristic configuration is such that the wire-type cutting machine main body including the driving wheel swings from the mounting portion. A first mounting position extending toward the moving arm and a second mounting position in which a portion of the wire saw wound around the cutting target portion extends from the mounting portion toward the swing arm; I have. Therefore, FIGS. 6 and 7
In the case where the cutting target location T3 is located below the feet of the civil engineering and construction work machine 50 to which the wire-type cutting machine 2 is mounted, the wire-type cutting machine main body 2a including the driving wheel 20 as illustrated in FIG.
(Excluding the wire saw 24 from the wire type cutting machine 2)
Attaches the wire-type cutting machine 2 in the first mounting posture extending from the mounting portion 32 toward the swing arm 54, and stops the wire-type cutting machine main body 2a as the cutting progresses, and the civil engineering and construction work machine 5
0, or a working method of gradually moving the working machine 50 itself for civil engineering and construction, or a cutting object as illustrated in FIG. 8. Even when the point T4 is located at a high place, the wire-type cutting machine main body 2a is moved from the mounting portion 32 to the swing arm 54.
The wire-type cutting machine main body 2a is gradually returned to the side of the working machine 50 for civil engineering and construction being stopped (in the direction indicated by the arrow in the figure) as the cutting progresses.
Alternatively, the work machine 50 itself for civil engineering and construction is cut at the location T4
It is only necessary to take a working method that gradually moves away from. On the other hand, FIG.
As illustrated in FIG. 10, the cutting target portions T5 and T6
Is a civil engineering and construction work machine 50 equipped with a wire type cutting machine 2.
When the wire saw 24 is positioned at a level that is significantly lower than the ground on which it is placed and forward, the portion 24f of the wire saw 24 that is wound around the cutting target locations T5 and T6 extends from the mounting portion 32 to the swing arm 54 side. Wear it in 2 mounting postures,
As the cutting operation by the wire saw 24 progresses, the wire-type cutting machine main body 2a is gradually drawn toward the stopped civil engineering construction working machine 50 side (the direction indicated by the arrow in the drawing), or the civil engineering building working machine 50 itself is pulled. What is necessary is just to take the working method which gradually moves away from the cutting target places T5 and T6. In other words,
Depending on the positional relationship between the cutting target location and the civil engineering work machine, the wire type cutting machine main body can be mounted on either side of the mounting portion, and as a result, the cutting target as exemplified above The effect of being able to carry out the cutting work smoothly in various positional relationships assumed between the location and the work machine for civil engineering and construction was obtained.

In order to achieve the above object, an adapter for a wire type cutting machine according to a second aspect of the present invention is wound around a driving wheel rotatably supported, a portion to be cut and the driving wheel. A first motor means for rotationally driving the endless wire saw through the rotational movement of the drive wheel; and a tension maintaining means for removing slack of the wire saw caused by the progress of cutting. Used in cooperation with the machine, by the mounting portion for mounting to the free end of the swing arm of the civil engineering work machine, by supporting the wire saw between the cutting target location and the drive wheel, Conversion means is provided which is capable of changing a direction in which the wire saw extends, between the cutting target portion and the main body of the wire type cutting machine.

[0010] By using the adapter for a wire-type cutting machine according to the second aspect of the present invention having such a characteristic structure,
A conversion means for changing the direction of extension of the wire saw between a point to be cut and the body of the wire-type cutting machine is attached to the free end of the swing arm of the working machine for civil engineering via the adapter for the wire-type cutting machine. In addition, the turning means mounted on the swing arm can be moved to the cutting target surface by the swing operation of the boom and the swing arm of the civil construction work machine and the propulsion operation of the civil construction work machine itself. (Even if the cut is very high or under water). Then, the above-mentioned state in which the conversion means faces the cutting location (this may be a state in which the adapter or the conversion means is pressed against the cutting target location, or a state in which the adapter or the conversion means is suspended from the cutting target location in the air) If the swing arm is fixed in step (1), a state appears as if the conversion means were fixed to the cutting target portion. With the swing arm fixed, the wire saw is rotationally driven to perform cutting. be able to. As a result, without performing a complicated operation such as fixing the conversion means to the cutting target portion using a bolt or the like that has been drilled and implanted in advance in the cutting target portion, and illustrated in FIG. As described above, the adapter for the wire-type cutting machine is a long member 130 (made of H steel, etc.), the attached portion 133 is provided at one end of the adapter 130 for the long-type wire-type cutting machine, and is converted to the other end. As long as the means 150 is provided, even if the place where this cumbersome work is forced is the cutting target place T8 below the water surface (or the cutting target place is a high place where it is difficult for the worker to access), the conversion means 150 can be freely arranged in these hard-to-access places, and the effect that the object can be cut easily can be obtained. Place under Especially large advantage that the request of the professional diver is not required to).

The above-mentioned adapter for a wire-type cutting machine according to the second aspect of the present invention further comprises a base end on which the mounted portion is formed, and a front end provided with the conversion means, And, between the proximal end and the distal end, there is provided angle adjusting means for changing an angle of the distal end with respect to the proximal end around an axis extending from the proximal end toward the distal end. It is fine to have a configuration that does. With such a configuration, it is difficult to arrange the civil engineering work machine equipped with the wire-type cutting machine adapter in front of the cutting target portion, and the civil engineering work device is connected to the cutting target portion and the wire-type cutting machine. Even in situations where it is necessary to arrange the wire saw at a position deviating laterally from the line connecting the main body, an appropriate place of the wire saw is supported via the conversion means on the adapter for the wire type cutting machine, and the original smooth cutting work is performed. Can be implemented.

In order to achieve the above object, a cutting method according to a fourth aspect of the present invention is a method for cutting a wire-type cutting machine according to the first aspect of the present invention, using an adapter for a wire-type cutting machine according to the first aspect. A cutting method used in a state where the tension maintaining means is attached to a free end of a swing arm of a working machine for civil engineering construction, wherein the tension maintaining means is supported by an erecting base member fixed to an adapter for a wire type cutting machine. A pole, the drive wheel slidably supported on the support pole, and second motor means for sliding the drive wheel between a first end and a second end on the support pole. <1> By operating the working machine for civil engineering and its swinging arm, the main body of the wire-type cutting machine is opposed to a cutting target portion. Disposing the free end of the swing arm <2> winding the wire saw around the drive wheel positioned near the first end of the support pole and a cutting target location; <3> revolving motion of the wire saw through rotation of the drive wheel While cutting the cutting target portion, the loosening that occurs in the wire saw in accordance with the progress of the cutting is performed by moving the driving wheel from the first end of the support pole to the second end by forward rotation of the second motor means. <4> When the drive wheel approaches the second end of the support pole by the slide operation, the drive wheel is returned toward the first end of the support pole. Then, the free end of the swing arm is moved so that a predetermined tension is generated in the wire saw by operating the work machine for civil engineering and construction. <5> If necessary, until the predetermined cutting operation is completed. <3> Beauty repeating the process of <4>.

In order to provide such a configuration, if the cutting is performed by using the cutting method according to the fourth aspect of the present invention, the wire type cutting machine cited in the first aspect is cut in advance at the cutting target portion. The complicated preparation work of fixing with a screw hole and a bolt means formed in the object is not required, and the cutting is advanced according to the step <3>. Even if it is no longer possible to remove the slack generated in the wire saw by approaching the second end of the support pole, as a <4> step, the drive wheel is returned to the first end of the support pole, and By operation, the free end of the swing arm can be moved so that a predetermined tension is generated again in the wire saw. Then, when the size of the portion to be cut is large, a series of operations including the step <3> and the step <4> may be repeated many times (as many times as necessary). As a result, the cutting work becomes simple with reduced preparation work, and without complicated work for shortening the length of the wire saw during the cutting work regardless of the dimensions of the cut target portion ( Basically, the cutting of the target object is completed without shortening the wire saw once.), Effective cutting can be completed while maintaining the tension of the wire saw, and expensive wire saw fragments are discarded. The effect of eliminating the need is obtained.

Here, the <4> step in the cutting method according to claim 4 includes the <4-1> second rotation during normal rotation.
By temporarily stopping the motor means and then reversely rotating the drive wheels, the drive wheels are returned toward the first end of the support pole. <4-2> Based on the operation of moving the free end, the drive wheel is separated from the cutting target by a predetermined distance so that a predetermined amount of tension is obtained on the wire saw. What is necessary is just to have the structure provided with each small process.

Alternatively, the <4> step in the cutting method according to claim 4 includes: <4-1> operating the civil engineering and construction work machine while the second motor is stopped or the normal rotation is performed. Thereby, the free end of the swing arm is separated from the cut target position by a predetermined distance, whereby the driving wheel is forced toward the first end of the support pole against the braking force of the second motor. To return to. What is necessary is just to have the structure provided with the small process. With such a configuration, the operation of returning the drive wheels toward the first end of the support pole can be performed without depending on the reverse rotation operation of the second motor, and as a result, the <4> An effect is obtained that the process can be quickly performed by operating the swing arm from the operation room of the civil engineering work machine.

The drive wheel is supported by a self-propelled unit slidable on the support pole. Between the support pole and the self-propelled unit, the first end and the first end of the self-propelled unit are provided. 7. A structure in which a limit position detecting mechanism for detecting proximity to the two ends is provided, and in the step <4> of the cutting method according to claim 4, the drive wheel is connected to the second of the support pole. A sliding operation of the drive wheel toward the first end is started based on a signal from the limit position detection mechanism indicating that the drive wheel has approached the end, and the drive wheel approaches the first end of the support pole. The sliding operation of the drive wheel toward the first end may be stopped based on a signal from the limit position detecting mechanism indicating that the driving operation has been performed. With such a configuration, a signal indicating that the drive wheel has approached the first and second ends of the support pole is output from the limit position detecting mechanism. It is possible to determine the start time and the end time of the above operation, and as a result, it is possible to carry out a smoother cutting operation.

In order to achieve the above object, a cutting method according to claim 8 of the present invention is a cutting method carried out using the adapter for a wire-type cutting machine according to claim 2 or 3. The tension maintaining means includes: a wire cutting machine main body provided separately from the wire cutting machine adapter; the drive wheel slidably supported on the wire cutting machine main body; And (2) a second motor means for sliding operation between a first end and a second end of the wire cutting machine main body. By controlling the position and orientation of the free end of the swing arm based on the operation of the construction work machine, fixing the conversion means of the wire type cutting machine adapter at a position facing the cutting target location, <2> The wire saw is Winding ear type cutting machine wherein the driving wheel that is positioned on the first end side of the body and into a cutting target portion,
<3> While the cutting target portion is cut by the orbiting motion of the wire saw through the rotation of the drive wheel, the slack generated in the wire saw in accordance with the progress of the cutting is reduced by the forward rotation of the second motor means. The wheel is removed by sliding operation from the first end of the wire-type cutting machine body toward the second end of the wire-type cutting machine main body. When approaching the two ends, the drive wheel is returned toward the first end of the wire-type cutting machine main body, and at the same time, the wire-type cutting machine main body is moved so that a predetermined tension is generated in the wire saw. <5> If necessary, the steps <3> and <4> are repeated until a predetermined cutting operation is completed.

[0018] Because of this configuration, if the cutting is performed by using the cutting method according to claim 8 of the present invention, the cutting target portion and the driving wheel of the wire type cutting machine cited in claim 2 can be cut. Even if there is a large level difference between the cutting means and the turning means that can change the extending direction of the wire saw between the cutting target point and the driving wheel, it is necessary to add the converting means to the cutting target point in advance to the cutting target object. The complicated preparation work of fixing with the formed screw hole and the bolt means is not required, and as a result of cutting along the <3> step,
The driving wheel is moved by the sliding operation so that the second
Even if it is no longer possible to remove the slack generated in the wire saw near the end, the drive wheel is returned to the first end of the wire-type cutting device body as the <4> step, and a predetermined tension is again generated in the wire saw. Thus, the wire-type cutting device main body can be moved. Then, when the size of the portion to be cut is large, a series of operations including the step <3> and the step <4> may be repeated many times (as many times as necessary). As a result, the cutting work becomes simple with reduced preparation work, and without complicated work for shortening the length of the wire saw during the cutting work regardless of the dimensions of the cut target portion ( Basically, the cutting of the object can be completed without cutting the wire saw once.), Effective cutting can be completed while maintaining the tension of the wire saw, and moreover, expensive wire saw fragments are discarded. The effect of eliminating the need is obtained.

Other features and advantages of the present invention include:
The description will become apparent from the description of the embodiment using the drawings.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described with reference to the drawings. [First Embodiment] FIGS. 1 and 2 show an example of a wire-type cutting machine, an example of a free end portion of a swing arm of a working machine for civil engineering, and a working machine 50 for civil engineering and construction. 3 shows an adapter 30 for a wire type cutting machine according to the present invention used to connect to the free end of a swing arm 54 of the present invention. Using the wire-type cutting machine adapter 30, the wire-type cutting machine 2 is connected to the free end of the swing arm 54 of a backhoe (an example of a civil engineering work machine) illustrated by a two-dot chain line in FIG. Once mounted, the position and orientation of the wire-type cutting machine 2 can be freely operated by operating the backhoe from the operation room.

(Structure of Wire-Type Cutting Machine) The wire-type cutting machine 2 has an endless wire saw 24 (an example is shown in FIG. 18) and a drive wheel 20 for making the wire saw 24 circulate. . The wire saw 24 is formed by covering the periphery of a metal wire with a rubber layer, and further providing a layer of bead-like diamond particles at regular intervals around the rubber layer. Cut out from the body at a part other than the diamond layer, cover the metal core (wire part) at the end created by the cut with a metal sleeve, connect it with a special caulking tool and endlessly connect it and use it (An example of the “caulking” operation is shown in FIG. 18-B). On the other hand, an annular groove 20a for receiving the wire saw 24 is formed on the outer periphery of the drive wheel 20, and a friction coefficient with the wire saw 24 is increased around the entire circumference of the annular groove 20a. A rubber lining is provided to prevent wear by diamond particles. The wire-type cutting machine 2 further includes a base member 4 and a support pole 6 vertically provided from one end of the base member 4. The base member 4 is a rigid body made of metal or the like.
c is formed vertically. The support pole 6 is made of steel and has a square or rectangular cross-sectional shape. On one side surface, a rack gear 6a extending along the longitudinal direction of the support pole 6 is provided as shown in FIGS. I have. further,
A self-propelled unit 8 rotatably supporting the drive wheel 20 is slidably fitted on the support pole 6. The self-propelled unit 8 is a hydraulic motor for rotating the drive wheel 20. 10 (an example of a first motor means).

From the vicinity of the base end of the support pole 6,
A steel horizontal rod 16 also extends, and the horizontal rod 16 has four auxiliary pulleys 18 (18a, 18b, 18).
c, 18d) are attached so as to be detachable and position-changeable, respectively, and the wire saw 24 can be wound around both the drive wheel 20 and the auxiliary pulley 18. As best shown in FIG. 4, the horizontal rod 16 is attached to the support pole 6 by, for example, tightening bolts 16a so that the horizontal rod 16 can be attached and detached and its position can be changed in the horizontal direction. The wire type cutting machine 2 includes a portion between the drive wheel 20 and the wire saw 24 and a portion to be cut and the wire saw 2.
In order to obtain a necessary frictional force during the period 4, a tension adjusting mechanism for increasing the tension applied to the wire saw to a predetermined value or more is provided. This tension adjusting mechanism includes a first tension adjusting mechanism and a second tension adjusting mechanism. The first tension adjusting mechanism is a position changing means for changing the distance from the driving wheel 20 or the self-propelled unit 8 to the base member 4, and specifically, as shown in FIG. 1, FIG. 2 and FIG. And self-propelled unit 8
An electric motor 12 (an example of a second motor means) provided in the self-propelled unit 8 for slidingly driving itself between the first end 6b and the second end 6c on the support pole 6,
In order to reliably convert the rotational movement of the electric motor 12 to the sliding movement of the self-propelled unit 8, a pinion 12a provided on the rotating shaft of the electric motor 12 meshes with a rack gear 6a on the support pole 6 (FIG. 4). On the other hand, the second tension adjusting mechanism is selectively used as the auxiliary pulley 18 (1).
8a, 18b, 18c, 18d), winding an extra part of the wire saw 24 around all or a part of these auxiliary pulleys 18 helps to adjust the tension, and at the same time, the wire saw from the wire type cutting machine 2 A space suitable for the size of the cut target portion can be provided between the outlet and the inlet of the 24.

The hydraulic pressure for driving the hydraulic motor 10 in the self-propelled unit 8 is supplied from a service oil passage 50 s provided in the civil engineering and construction work machine 50, and is 100 volts for driving the electric motor 12. Power supply is civil engineering and construction work equipment 5
The structure is obtained from outside 0. On the other hand, the hydraulic motor 10
ON / OFF of the drive, and ON / OFF of the drive of the electric motor 12 and switching of the rotation direction can be remotely controlled by switches provided on an operation panel 50b installed in an operation room of the working machine 50 for civil engineering and construction. Among these switches, a volume switch for setting the tension applied to the wire saw 24 is included. (The greater the set tension by the volume switch, the higher the cutting work efficiency, but the higher the rate at which the wire saw 24 is cut. The hardness may be appropriately adjusted in accordance with the hardness and size of the cut target portion, the state of the diamond layer of the wire saw 24, and the like.)

(Structure of swing arm and the like) As shown in FIG. 3, a boom 52 swingable in the vertical direction extends from the swivel table 50T of the backhoe 50. An arm 54 is pivotally supported with respect to the boom 52 so as to be vertically swingable. The swing arm 54 includes a swing arm body 56 and a bucket cylinder 58 attached to a predetermined position of the swing arm body 56 so as to swing vertically.
It is composed of As shown in FIGS. 1 and 2, at the free end of the swing arm main body 56, two horizontally extending through holes 56a and 56b are formed so as to be separated from each other in the longitudinal direction of the swing arm. I have. In addition, bucket cylinder 5
Piston 5 protruding from 8 and capable of telescopic operation by hydraulic operation
One horizontally extending through hole 58b is also formed at the free end of 8a. Through-hole 5 on the base end side of swing arm body 56
6a, one end of a pair of first bucket links 60, 60 is pivotally supported via one pin, and a piston 58a
The other end of the first bucket link 60 and another pair of second bucket links 6
The two ends are simultaneously pivoted with one pin.

(Structure of Adapter) On the other hand, the adapter 30
Has a main plate 32 made of steel, which is generally flat, and two auxiliary plates 34a and 34b also made of steel, which are erected on the first surface 32G of the main plate 32. A plurality of first mounting holes 32a, second mounting holes 32b, and third mounting holes 32c (all of which are examples of mounting portions) for fastening the base member 4 with the bolt and nut means 4a are formed at a plurality of locations on the main plate 32. Have been. In addition, each auxiliary plate 34a,
34b, the adapter 30 is attached to the swing arm 5 of the backhoe.
In a state where the first through holes 36, 36 (an example of a mounted portion) and the second through holes 38, 38 (similarly, an example of a mounted portion) for connecting to the auxiliary plates 34a, 34 are connected to each other.
b.

The wire cutting machine 2 can be selectively installed on either the front surface (first surface 32G) or the back surface (second surface 32H) of the main plate 32. In other words, the first to third mounting holes 32a, 32b, 32
c indicates that the wire-type cutting machine main body including the drive wheel 20 has the first surface 3.
2G side, and as a result, the first mounting posture (FIGS. 1, 2, 3, 6, 7, and 7) extending from the mounting portion to the swing arm 54 side.
8 and 11), and the wire-type cutting machine main body including the driving wheel 20 is fixed to the second surface 32H. As a result, the portion 24f wound around the cutting target portion of the wire saw 24 is moved from the mounting portion to the swing arm. The second mounting posture extending to the side 54 (FIG. 9)
And the state shown in FIG. 10). That is, as illustrated in FIGS. 6 and 7, when the cutting target location T3 is located under the foot of the civil engineering and construction work machine 50 to which the wire-type cutting machine 2 is mounted, the wire is placed in the first mounting posture. The wire-type cutting machine 2 is mounted, and the wire-type cutting machine main body 2a is gradually moved away from the front side (in the direction indicated by the arrow in the figure) of the civil engineering and construction work machine 50 as the cutting progresses, or What is necessary is just to take the working method which makes the construction work machine 50 itself gradually advance. On the other hand, as illustrated in FIG. 9 and FIG.
When the civil engineering and construction work machine 50 equipped with the wire-type cutting machine 2 is located at a level that is significantly lower than the ground on which the work machine 50 is placed and in front of the ground, the work is mounted in the second mounting posture, and as the cutting progresses. The wire type cutting machine main body 2a is gradually pulled toward the stopped civil engineering construction working machine 50 side (the direction indicated by the arrow in the figure) or the civil engineering building working machine 50 itself is gradually moved away from the cutting target locations T5, T6. Just take the method.

Further, the support pole 6 is attached to the adapter 30.
Angle adjusting means for changing the setting of the angle with respect to the main plate 32 is provided. The angle adjusting means is specifically,
As best shown in FIGS. 4 and 5, bolts 4b, 4b,. . Has been realized. That is, as shown in FIG. 5-A or FIG. 5-B, the bolts 4b, 4b,. . Are projected downward from the base member 4 and fastened by the bolt and nut means 4a, so that the support pole 6 can be connected to the main plate 32 in a state where it is not perpendicular but inclined appropriately. . By using this angle adjusting means, it is possible to freely cope with a case where the angle of the cut surface formed at the cut target portion by the cutting is strictly specified.
The support pole 6 shown by a two-dot chain line in FIG. 7 is supported by only the swing operation of the adapter 30 by the swing arm 54 in order to cut the cut target portion T3 accurately and horizontally (as indicated by the solid line). (When the pole 6 cannot be set to the horizontal position)
The support pole 6 is inclined with respect to the adapter 30 in the same direction as shown in FIG.

(Connection Step of Wire-Type Cutting Machine and Swing Arm) As shown in FIGS. 1 and 2, when the wire-type cutting machine 2 is mounted on the swing arm 54 of the backhoe, the following steps are performed. Just follow it. <1> The mounting hole 32a of the main plate 32 of the adapter 30,
One of 32b and 32c is aligned with the through hole 4c of the base member 4, and the bolt and nut means 4a is inserted into the through hole 4c to fasten the two. <2> A first through hole 36b of the swing arm body 56 is connected to the first through hole 36, 36 of the adapter 30 with a pin. <3> A second bucket link is connected to the second through hole 38, 38 of the adapter 30. The other ends of 62, 62 are connected by pins.

Taking the situation of FIGS. 6 and 7 (solid line) as an example,
The cutting operation may be performed in the following manner. <1> The operation of the work machine 50 for civil engineering and construction and the swing arm 54 causes the wire-type cutting machine main body 2a to cut the target portion T3.
The free end of the swing arm 54 is arranged so as to be opposed to. <2> The wire saw 24 cut at one location is wound around the drive wheel 20 located near the first end 6b of the support pole 6 and the cut target location T3, and the ends of the wire saw 24 are “sewn” and endless. Shape. <3> While the cutting target portion T3 is cut by the orbiting motion of the wire saw 24 through the rotation of the drive wheel 20, the looseness generated in the wire saw 24 as the cutting progresses as shown in FIG. The drive wheel 20 is moved from the first end 6b of the support pole 6 to the second end 6 by the forward rotation of the electric motor 12 of FIG.
<4> When the drive wheel 20 approaches the second end 6c of the support pole 6 by the slide operation, the drive wheel 20 is turned toward the first end 6b of the support pole. Then, as shown by an arrow A in FIG. 7, the free end of the swing arm 54 is moved so that the tension is obtained again by the operation of the work machine 50 for civil engineering and construction using the wire saw 24 having the same length as the original. Move (this may be performed by the swing operation of the boom 52 or the swing arm 54 or by the propulsion operation of the civil engineering work machine 50 itself). <5> If necessary, until the predetermined cutting operation is completed. The steps <3> and <4> are repeated.

The operation of "returning the drive wheel 20 toward the first end 6b of the support pole" in the step <4> is performed by first stopping the forward rotation of the electric motor 12, Is stopped to stop the rotation of the wire saw 24, and then the electric motor 12 is rotated in the reverse direction. However, the same operation of “returning the drive wheel 20 to the direction of the first end 6b of the support pole” is performed by stopping the hydraulic motor 10 and stopping the rotation of the wire saw 24.
2 is stopped, and the boom 5 of the civil engineering construction work machine 50 is stopped.
2, the swinging operation of the swinging arm 54, the propulsion or retreat of the civil engineering work machine 50 itself, or a combination of these operations may be forcibly performed against the braking force of the electric motor 12.

Also, as shown in FIG. 8, even when the cutting target location T4 is located at a high place, the wire type cutting machine 2 can be mounted in the first mounting posture similar to FIGS. 6 and 7. Good. However, as the cutting progresses, the wire type cutting machine body 2a
May be gradually returned to the stopped civil engineering construction work machine 50 side (the direction indicated by the arrow in the figure), or the civil construction work machine 50 itself may be gradually moved away from the cutting target point T4.

Although the first mounting posture has been described above, in the second mounting posture in which the portion of the wire saw 24 that is wound around the cutting target extends from the mounting portion 32 toward the swing arm 54, as shown in FIG. In addition, it is suitable for a cutting operation in a case where the cutting target location T5 is located at a level lower than the ground where the working machine 50 for civil engineering and construction equipped with the wire type cutting machine 2 is placed and in front thereof. In this case, if the tension cannot be maintained in the traveling of the self-propelled unit 8 (sliding operation on the support pole) as the cutting proceeds, the boom 5
2 or the swing arm 54 swings the wire type cutting machine body 2a gradually toward the stopped civil engineering construction working machine 50 side (the direction indicated by the arrow in the figure), or the civil engineering building working machine 50 itself. May be taken backward so as to gradually move away from the cutting target portion T5.

FIGS. 1, 2, 3, 6, 7, 8 and 9
In the first embodiment, the adapter 30 is mounted in the first or second mounting position using the first mounting hole 32a of the mounting portion of the adapter 30. Alternatively, the second mounting hole 32b or the second mounting hole 32c is used.
Is used, the surface formed by the wire saw 24 is
2 and the swinging arm 54 can cooperate with each other to change the angle formed with respect to the surface formed by the cooperation, so that the cutting operation can be performed in various conditions of the shape of the object to be cut and the position to be cut (see below). In the example, the angle is changed in units of about 90 °, but is not limited thereto.)

For example, if the wire saw 24 is mounted using the second mounting hole 32b, the surface formed by the wire saw 24 is
And the swing arm 54 cooperate with each other to form a state along a vertical plane. As shown in FIG. 10, the cutting target T6 extending in the horizontal direction or the like is cut along the vertical cutting plane. It becomes possible.

It is not a stable cutting object such as a structure embedded on the ground as exemplified above, but a cutting object T7 having an unstable posture as illustrated in FIG. 11 (for example, another work). When cutting a reinforced concrete block that is cut and separated from a building and placed on the ground, the coefficient of friction of the rotating wire saw 24 with respect to the cross section of the cutting object changes every moment. As a result, there is a case where a problem occurs that the cutting target T7 and the wire saw 24 vibrate and the cutting does not proceed smoothly. However, as shown in FIG.
0 is formed on the contact surface 32H (the wire-type cutting machine 2 is
When the wire cutting machine 2 is mounted on the second surface 32H, the first surface 32G becomes the contact surface when the wire cutting machine 2 is mounted on the second surface 32H.
Is cut in a state in which the cutting object T7 is in contact with the cutting object T7, the wire saw 24 is connected to the cutting object T7 via the contact surface 32H of the adapter 30 based on the tension maintaining function of the self-propelled unit 8.
Can be kept pressed against the wire-type cutting machine. As a result, a stable state in which the vibration of the cutting object T7 is suppressed can be obtained, and a smooth cutting can be performed.

Here, from the state in which the drive wheel 20 indicated by the solid line in FIG. 11A is positioned at the first end 6b of the support pole, cutting is started while maintaining the tension by the traveling of the self-propelled unit 8, and the cutting is started. Progresses, as shown by the two-dot chain line in FIG. 11-A, when the wire saw 24 cuts into the inside of the object T7 to be cut and the drive wheel 20 reaches the second end 6c of the support pole, The tension maintaining function of the self-propelled unit 8 is lost, and the cutting operation cannot be continued. Therefore, it is necessary to restore the tension maintaining function to the self-propelled unit 8 by the operation according to the following procedure. In such a situation, conventionally, FIG.
As illustrated in FIG. 8-A, two appropriate portions 24a of the wire saw 24 are cut by a wire saw cutter 200, a part 24x of the wire saw 24 is discarded, and as shown in FIG. 24y, both ends 24a,
The length of the wire saw 24 is shortened by placing a metal sleeve on the metal sleeve 24a and performing "caulking" with a wire saw caulking device 210, so that the self-propelled unit 8 can again exert the tension maintaining function. Was.

However, here, as shown in FIG. 11-B, when the self-propelled unit 8 loses its tension maintaining function,
By interposing the spacer M between the cutting object T7 and the contact surface 32H of the adapter 30, the self-propelled unit 8 recovers the tension maintaining function again. Thereby, while continuing the stable cutting work using the contact surface 32H,
In addition, the operation is released from the complicated operations of cutting and swaging the wire saw 24, and a part of the wire saw 24 does not need to be discarded. It should be noted that if the upper and lower surfaces of the spacer M are appropriately provided with anti-slip means for the object to be cut and the contact surface 32H of the adapter 30, a more stable cutting operation can be performed. Further, as illustrated in FIG. 11-C, if a jack J as a means capable of changing the distance between the upper and lower surfaces is used together with the spacer M, it is prepared in advance for various patterns of the shape and size of the cut target portion. In addition, the number of types of spacers M having different height dimensions is relatively small.

[Second Embodiment] FIG. 12 shows an example of a wire-type cutting machine mounted stationary on the ground, an example of a free end portion of a swinging arm of a working machine for civil engineering, and an example for civil engineering. 5 shows an adapter 130 for a wire type cutting machine according to the present invention, which can be mounted on the free end of the swing arm 54 of the work machine 50. Since the wire-type cutting machine adapter 130 is provided with the conversion means 150 for changing the direction in which the wire saw 24 extends between the cutting target point T8 and the wire-type cutting machine, the wire-type cutting machine adapter 130 is provided. Once attached to the free end of the swing arm 54 of the backhoe (an example of a civil engineering work machine), the position and orientation of the conversion means 150 can be freely operated by operating the backhoe from the operation room.

(Structure of Wire-Type Cutting Machine) The wire-type cutting machine 102 shown in FIG. 12 is a stationary type (here, specifically, a working spud boat N) mounted on the ground (here,
The movement can be performed appropriately). In this example, the cutting target portion T8 is
It is located at a position (for example, a steel pipe pile supporting the wharf installed in the harbor from the sea floor) which is greatly lowered (e.g., several meters) from the position shown in FIG.
Therefore, in order to cut this target place T8 horizontally with the wire saw 24 of the ground wire cutting machine 102, the extending direction of the wire saw 24 must be changed between the target place T8 and the wire type cutter 102. Will be needed.

The wire-type cutting machine 102 has a frame-shaped wire-type cutting machine main body 104, a horizontal and long support rod 106 constituting a part of the wire-type cutting machine main body 104, and reciprocating traveling on the support rod 106. It has a possible self-propelled unit 108. The self-propelled unit 108 includes a drive wheel 12
0 is rotatably supported. Self-propelled unit 1
08 is a hydraulic motor 1 for driving the drive wheels 120 to rotate.
10 and an electric motor 112 for moving the self-propelled unit 108 itself on the support rod 106. A linear rack gear (not shown) is provided on the support rod 106 along its longitudinal direction, and a pinion gear (not shown) driven to rotate by the electric motor 112 meshes with the rack gear. The self-propelled unit 108 that linearly travels on the support rod 106 based on the forward rotation of the electric motor 112 generates a necessary frictional force between the drive wheel 120 and the wire saw 24 and between a cutting target portion and the wire saw 24. It constitutes a tension adjusting mechanism for obtaining. That is, the self-propelled unit 108 is moved from the first end 106a on the support rod 106 to the second end 106b.
The cutting can be advanced while the wire saw 24 maintains a constant tension by rotating the drive wheel 120 while gradually moving the wire saw toward. The structure of the swing arm 54 of the working machine 50 for civil engineering and construction is the same as that of the first embodiment, and the structure of the drive wheel 120 and the tension adjusting mechanism are also essentially the same as those of the first embodiment.

Since the object to be cut is large, the self-propelled unit 108 is moved to the second end 106b on the support rod 106 before the cutting of the point T8 to be cut is completed, as shown by the two-dot chain line in FIG. , The self-propelled unit 108 is first returned to the first end 106a on the support rod 106, and then, as shown in FIG. The machine body 104 is moved away from the cutting target point T8, and the self-propelled unit 108 is again turned on.
The cutting step of rotating the driving wheel 120 while moving the driving wheel 120 from the first end 106a toward the second end 106b may be restarted. When the wire-type cutting machine main body 104 is moved as described above, the wire-type cutting machine adapter 13 is also used.
0, and the position and orientation of the conversion means 150 may basically remain fixed (i.e., if a horizontal cutting plane is sufficient).

The wire-type cutting machine adapter 130 is shown in FIG.
The main body 131 includes an elongated H-shaped steel main body 131 extending vertically in the posture shown in FIG. 2 and an auxiliary member 132 extending horizontally from the lower end of the main body 131. At the upper end of the main body 131, a mounted portion 133 for mounting to the free end of the swing arm 54 of the civil engineering work machine 50 is formed, and a pair of conversion means 150, 150 is provided with an auxiliary member on the lower end side. 132 are provided near the left and right ends. Specifically, each conversion means 150 includes first pulleys 152a and 152b rotatable about a vertical rotation axis and second pulleys 154a and 154b rotatable about a horizontal rotation axis (first). The axes of the pulley and the second pulley intersect each other.). Driving wheel 120 of wire type cutting machine 102 and cutting target location T8
The wire saw 24 wound between the wire cutters emits driving wheels 120, and firstly, a part of the peripheral surface of an auxiliary pulley 118a (having a horizontal rotation axis) provided on the left side of the front end of the wire type cutting machine 102. Section, the second pulley 154a on the left side as viewed from the operation room of the civil engineering work machine 50, and then the first pulley 1
52a, and sequentially passes while cutting over the cutting target location T8, this time the first pulley 152 on the right side.
b, and then continuously circulates through the second pulley 154b and further through a part of the peripheral surface of the auxiliary pulley 118b on the right side of the wire cutter 102, finally returning to the drive wheel 120. That is, the first pulleys 152a and 152b and the second pulley 15
4a and 154b smoothly move the extending direction of the wire saw 24 between the cutting target point T8 and the wire-type cutting machine main body 104 (specifically, the auxiliary pulleys 118a and 118b) by movably supporting the wire saw 24. can do.

Since a contact portion 140 is provided near the lower end of the adapter 130 for a wire type cutting machine, which can be pressed against a portion to be cut as required, the object to be cut is unstable and the wire saw is In the case where vibration is likely to occur due to friction with the wire 24, the wire-type cutting machine adapter 130 is connected to the contact portion 1 in a manner similar to that described in the first embodiment.
If the cutting is performed while maintaining the state of being pressed against the cutting target portion via 40, the above-described vibration is suppressed and a smooth cutting operation can be performed.

Further, as best shown in FIG. 13, a long main body 131 made of H-shaped steel comprises an upper member 131a on which a mounting portion 133 is formed, and conversion means 150, 150.
And an upper member 131a and a lower member 131b.
b are connected to each other so that the rotation angle around the axis along the longitudinal direction can be changed. Specifically, the upper member 13
A plurality of through holes 131g, 131 enabling connection by bolt means are provided on both opposing surfaces of the lower member 1a and the lower member 131b.
h are formed, and these through holes are four arc-shaped long holes. Therefore, the bolt means is slightly loosened, and the upper member 131a and the lower member 131b are rotated around the axis by a desired amount (since the bolt means can be moved in the elongated holes 131g or 131h).
When the bolt means is tightened again, even when the backhoe 50 cannot be arranged behind the wire-type cutting machine main body 104 as shown in FIG. 14, for example, the conversion means 150, 150 having the same position and posture as in FIG. It can be supported by the swing arm 54 of the backhoe 50. In FIG. 14, the backhoe 50 is disposed at a position completely different from that of FIG. 12 (position oblique to a line connecting the wire-type cutting machine main body 104 and the cutting target point T8 in plan view). The boom 52 and the swing arm 54 of the backhoe 50 extend in an inclined direction of about 45 ° with respect to the wire saw 24 extending between the cutting target point T8 and the wire-type cutting machine main body 104 in a plan view. The upper member 131a and the lower member 131b
Only one of the through holes may be a long hole.

[Another Embodiment] <1> In the first embodiment, the self-propelled unit 8 is connected between the first end 6b of the support pole 6 and the second A limit position detection mechanism for detecting the proximity to the end 6c may be provided. FIG.
The limit position detection mechanism exemplified in FIG.
And a pair of microswitches 6p and 6q disposed at the first end 6b and the second end 6c. If the detection result by the limit position detection mechanism is displayed on a display panel or the like in the operation room of the civil engineering work machine, or is notified to an operator by a buzzer or the like, the drive wheels are supported by the first and second support poles. Since the signal indicating that the end is approached is notified to the operator via the limit position detecting mechanism, the self-propelled unit uses the signal to perform the second rotation based on the forward rotation of the second motor means (electric motor). When near the edge, and
The time when the self-propelled unit approaches the first end can be reliably determined based on the reverse rotation of the electric motor or the forcible movement of the swing arm or the like, resulting in a smoother cutting operation. Can be implemented.

<2> In the first embodiment, at the time of forcible return operation of the drive wheel of the wire type cutting machine, a specific signal generated based on reverse rotation of the second motor means (electric motor) is detected, and the specific signal is detected. Based on the analysis of the above, monitoring means may be provided to inform the operator of the civil engineering work machine that the tension applied to the wire saw is within a safe range not reaching the tensile breaking strength of the wire saw. According to this structure, the operator monitors the operation of bringing the self-propelled unit close to the first end based on the forcible movement by the operation of the swing arm or the like and that the tension applied to the wire saw is within the safe range. Can be implemented while checking by means

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a wire type cutting machine.

FIG. 2 is a perspective view showing a state in which the wire type cutting machine of FIG. 1 is attached to a swing arm using the adapter according to the present invention.

FIG. 3 is a perspective view showing the wire type cutting machine of FIG. 1 together with the entire swing arm of the civil engineering work machine.

FIG. 4 is a partially cutaway side view showing a base member and a part of a support pole of the wire cutting machine of FIG. 1;

FIG. 5 is a partially cutaway side view showing an angle adjusting means of the wire type cutting machine of FIG. 1;

FIG. 6 is a perspective view illustrating the usage of the wire-type cutting machine and the adapter in FIG. 1;

FIG. 7 is a side view illustrating the usage of the wire-type cutting machine and the adapter in FIG. 1;

FIG. 8 is a side view illustrating another usage state of the wire cutting machine and the adapter of FIG. 1;

FIG. 9 is a side view illustrating still another use state of the wire cutting machine and the adapter of FIG. 1;

FIG. 10 is a side view illustrating another usage state of the wire cutting machine and the adapter of FIG. 1;

FIG. 11 is a side view illustrating still another use state of the wire cutting machine and the adapter of FIG. 1;

FIG. 12 is a side view illustrating the use of the wire-type cutting machine different from FIG. 1 and the adapter according to the present invention;

FIG. 13 is a perspective view showing a part of the adapter of FIG. 12;

FIG. 14 is a side view illustrating another usage state of the wire cutting machine of FIG. 12 and the adapter according to the present invention;

FIG. 15 is a perspective view showing another embodiment of the wire type cutting machine of FIG. 1;

FIG. 16 is a perspective view illustrating a conventional method of using the wire cutting machine of FIG. 1;

FIG. 17 is a perspective view illustrating a conventional method of using the wire cutting machine of FIG. 12;

FIG. 18 is a schematic view showing an example of an operation for shortening a wire saw.

[Explanation of symbols]

 2,102 Wire-type cutting machine 4 Base member 6 Support pole 8,108 Self-propelled unit 10 Hydraulic motor 12 Electric motor 20,120 Drive wheel 24 Wire saw 30,130 Adapter 32 Main plate 32a, 32b, 32c Mounting hole (mounting part) 32G, 32H Contact surface 34 Auxiliary plate 36 First through hole (attached portion) 38 Second through hole (attached portion) 54 Swing arm 56 Swing arm body 58 Bucket cylinder 60 First bucket link 62 Second bucket link 133 Mounting part

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[Procedure amendment]

[Submission date] December 20, 1999 (1999.12.
20)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Adapter for wire type cutting machine ,
Cutting method and wire-type cutting machine using same as left

[Claims]

3. A first wheel for rotatably driving a rotatably supported drive wheel and an endless wire saw wound around a cutting target portion and the drive wheel through a rotational motion of the drive wheel. Used in cooperation with a wire-type cutting machine having a motor means and a tension maintaining means for removing the slack of the wire saw caused by the progress of cutting, and attached to a free end of a swing arm of a working machine for civil engineering and construction. By mounting the wire saw between the cut target portion and the main body of the wire type cutting machine, the extending direction of the wire saw can be changed by supporting the wire saw between the cut target portion and the drive wheel. and Do conversion means is provided with, and
In addition, a contact capable of contacting the cutting target portion
Adapter for wire-type cutting machine having a section .

5. A wire-type cutting machine according to paragraph 1 or paragraph 2 claims, wherein the rocking A civil construction work machine
At the tip of the swing arm that forms part of the free end of the arm.
The adapter for a wire-type cutting machine according to claim 1 or 2 , wherein the adapter is connected via the first mounted portion ,
Claim 1 at the tip of the bucket cylinder
Through the second mounting portion of the adapter for a wire-type cutting machine of
A tensioning means, wherein the tension maintaining means comprises a support pole erected from a base member fixable to an adapter for a wire type cutting machine, and a slidable support on the support pole. A cutting method comprising the following drive wheels, and second motor means for slidingly operating the drive wheels between a first end and a second end on the support pole; <1> arranging the free end of the swing arm so that the main body of the wire-type cutting machine is opposed to a cutting target portion by operating the work machine for civil engineering and the swing arm thereof; A wire saw is wound around the drive wheel and the cut target portion located near the first end of the support pole. <3> The cut target portion is formed by the circular motion of the wire saw through the rotation of the drive wheel. While cutting, the cutting progress (4) removing the slack generated in the wire saw in response to the sliding operation of the driving wheel from the first end of the support pole toward the second end of the support pole by forward rotation of the second motor means. At the time when the drive wheel approaches the second end of the support pole by the sliding operation, the drive wheel is returned toward the first end of the support pole, and the operation of the civil engineering and construction work machine causes the drive wheel to return to the first end. The free end of the swing arm is moved so that a predetermined tension can be obtained on the wire saw. <5> If necessary, the steps <3> and <4> until the predetermined cutting operation is completed. repeat.

Wherein said first <4> process comprising the steps of
The cutting method according to claim 5 , <4-1>, while the second motor is stopped or the normal rotation is maintained, the swing arm is operated by operating the civil engineering construction work machine. The end is separated from the cutting target by a predetermined distance, thereby forcibly returning the drive wheel toward the first end of the support pole against the braking force of the second motor.

7. implemented using a wire-type cutting machine adapter according to patent No. 3 or 4 wherein the claims, the tension maintaining means, the wire is a wire-type cutting machine adapter provided separately Type cutting machine body, the drive wheel slidably supported on the wire type cutting machine body, and sliding operation of the driving wheel between a first end and a second end of the wire type cutting machine body. A cutting method comprising the following steps: <1> controlling the position and orientation of the free end of the swing arm based on the operation of the civil engineering work machine; Thereby, the conversion means of the adapter for the wire-type cutting machine is fixed at a position facing a cutting target portion. <2> The wire saw is positioned at the first end side of the wire-type cutting machine main body. Wind around the drive wheel and the cutting target, <3 > While cutting the cut target portion by the orbiting movement of the wire saw through the rotation of the drive wheel, the looseness generated in the wire saw in accordance with the progress of the cutting is reduced by the forward rotation of the second motor means. <4> The driving wheel is moved by the sliding operation from the first end to the second end of the wire-type cutting machine main body. At the time of approaching, the drive wheel is returned to the first end of the wire-type cutting machine main body, and at the same time, the wire-type cutting machine main body is moved so as to obtain a predetermined tension on the wire saw. <5> If necessary, repeat the above steps <3> and <4> until the predetermined cutting operation is completed.

8. A non-winding member wound around a driving wheel and a portion to be cut.
Rotating the end-shaped wire saw through the rotational movement of the drive wheel
Wire saw mechanism with first motor means for driving
And the swinging arm of the working machine for civil engineering
An adapter for attaching to the free end of the system.
The yasaw mechanism is a support pole erected on the adapter.
Moving along the support pole while supporting the drive wheels.
A movable self-propelled unit, wherein the self-propelled unit comprises:
The loosening of the wire saw caused by the progress of cutting is eliminated.
Move the self-propelled unit on the support pole
Second motor for sliding movement from the second end to the first end
A wire-type cutting machine having a means, wherein the second motor means is constituted by an electric motor.
The second movement of the self-propelled unit by the swing arm
When the electric motor is forcibly returned to the end,
Detects signal generated from the electric motor based on reverse rotation
The tension applied to the wire saw causes the wire saw to be pulled.
It is said that the civil engineering
A monitoring means is provided to inform the construction machine operator
There is a wire type cutting machine.

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotatably supported drive wheel, and an endless wire saw wound around a cutting target point and the drive wheel, which is rotated through the rotational motion of the drive wheel. Adapter for a wire-type cutting machine , comprising: motor means for driving; and tension maintaining means for removing slack of the wire saw caused by the progress of cutting.
The present invention relates to a cutting method using a cutting machine and a wire-type cutting machine itself .

[0002]

2. Description of the Related Art Conventionally, when such a wire type cutting machine is used, as shown in FIG.
A driving wheel 20 and a tension maintaining means 12,
The supported base member 4 at 18 is cut in advance at the cutting target location T.
In a state in which the driving wheel 120 and the tension maintaining means 112 are supported and fixed to a cutting target portion by using a screw hole formed by drilling in 1 and a bolt 4b or the like, as shown in FIG. When the machine main body 104 is fixedly installed on the ground or the like, and there is a large level difference between the cutting target portion T2 and the cutting machine main body 104 (in FIG. 17, the cutting target portion T2
Is located below the sea level and the cutting machine main body 104 is high above the sea level), the turning means 200 for changing the extending direction of the wire saw 24 between the cutting target point T2 and the cutting machine main body 104.
(Comprising a pulley or the like) was also used in a state where it was fixed to the cutting target location T2 using a screw hole and a bolt 210 or the like formed in advance by drilling the cutting target location T2. In any of the above cases, when an endless wire fitted with diamond beads or the like is used as the wire saw 24, the rotation of the wire saw 24 via the driving wheels 20, 120 rotated by the motor means 10, 110 is performed. Based on the above, even a high-strength structure such as reinforced concrete can be cut under conditions such as noise suppression.
Further, regarding the problem that the tension required for the wire saw 24 when cutting an object is insufficient based on the progress of cutting,
The tension maintaining means 12, 18;
This problem has been solved by the motor means 12 for gradually moving the positions 0 and 120 away from the cutting target portion, or the auxiliary pulley mechanism 18 for extending the rotation path of the wire saw 24 (if the auxiliary pulley mechanism 18 is detachably provided). At the same time, the wire saw 24 can be selectively wound around a part of the plurality of auxiliary pulley mechanisms 18 in order to adjust the rotation path of the wire saw 24).

[0003]

However, the preparatory work required in the above-described conventional cutting method, that is,
A base member 4 supporting the driving wheels and the tension maintaining means,
Alternatively, the switching means 200 for changing the direction in which the wire saw extends between the cutting target portion and the driving wheel is fixed to the cutting target portion using a screw hole and a bolt formed in advance by drilling the cutting target portion. The work to save is very complicated, and in particular, the cut portion is located at a high place as shown in the example shown in FIG. 16, or under the water surface (in this case, as shown in FIG. 17). In many cases, it is necessary to request a specialized diver.) In such a case, there is room for improvement because of the difficulty of the work. Further, the main tension maintaining means 12 of the wire type cutting machine generally includes a track 6 extending linearly and a track along the track 6 while rotatably supporting the driving wheel 20 as illustrated in FIG. The self-propelled unit 8 comprises a self-propelled unit 8 that reciprocates in
A mechanism is adopted in which the drive wheels 20 are gradually moved away from the cut target portion by traveling on the track 6 having a predetermined length. Therefore, if the self-propelled unit 8 reaches the terminal end 6b on the track 6, it is no longer possible to remove the looseness of the wire saw 24 caused by the cutting. The driving wheel 20 of the cutting machine 2 and the base member 4 supported by the tension maintaining means 12 are fixed to the cut target portion using screw holes and bolts 4A formed in advance by drilling the cut target portion. In this case, each time the self-propelled unit 8 reaches the terminal 6b on the track 6, as shown in FIG.
A part of the wire saw 24 was cut off and reconnected by "staking" or the like again, thereby shortening the entire length of the wire saw 24 to recover the tension required for the wire saw 24.
For this reason, depending on the size of the portion to be cut, a complicated operation of dividing the wire saw 24 at two locations and re-caulking is often required. Since many diamonds, such as beads, are used in wire saws for the purpose of improving cutting performance, they are expensive even though they are fragments.) .

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus capable of reducing the preparatory work before cutting work, in view of the above-mentioned drawbacks of the above-described prior art wire type cutting machine and cutting method, and a preparatory work. An object of the present invention is to provide a cutting method with reduced work. Further, another object of the present invention is to use a bolt or the like which is drilled and implanted in advance in a cutting target portion with a driving wheel of a wire-type cutting machine and a base member supported by a tension maintaining means. It is an object of the present invention to provide a device that does not need to wastefully discard a wire saw and a cutting method in a case where the operation is performed in a fixed state.

[0005]

In order to achieve the above object, an adapter for a wire-type cutting machine according to claim 1 of the present invention comprises a rotatably supported drive wheel, a cutting target portion, First motor means for rotationally driving the endless wire saw wound around the drive wheel through the rotational motion of the drive wheel, and tension for removing slack of the wire saw caused by progress of cutting. A wire-type cutting machine having a retaining means and a free end of a swing arm of a civil engineering and construction work machine.
An adapter for a wire-type cutting machine for mounting on a
The work machine for civil engineering and construction includes a mounting portion mounted to the free end of the swing arm, and a mounting portion for mounting the wire-type cutting machine, wherein the mounted portion includes one of the swing arms. Department
1st attached to be connected to the tip of the swing arm body to constitute
Part, the swing arm body being swingably supported by the swing arm body
The tip of the bucket cylinder that forms another part of the swing arm
A second mounted portion connected to an end, wherein the mounting portion is
A first mounting posture in which a wire-type cutting machine main body including the driving wheel extends from the mounting portion to the swing arm side; and a portion wound around the cutting target portion of the wire saw from the mounting portion to the swing arm. It is characterized by being configured to be selectively mountable between a second mounting posture extending to the side.

[0006] The present invention having such a characteristic configuration is
If the adapter for a wire-type cutting machine according to claim 1 is used, a part of a swing arm of a working machine for civil engineering and construction can be connected to the wire-type cutting machine via the adapter for a wire-type cutting machine.
To the tip of the swing arm body and the swing arm body
Swingably supported to form another part of the swing arm
To it can be mounted on the tip of the bucket cylinder, therefore, by the swinging operation or civil engineering propulsion operation of the working machine itself boom and the swing arm of civil engineering work equipment, mounted on the swing arm wire It becomes easy to arrange the type cutting machine so as to face the cutting target portion (even if the cutting portion is at a high place or under the water). Then, the above-mentioned state in which the wire-type cutting machine faces the cutting position (this may be a state in which the adapter is pressed against the cutting target place, or a state in which the adapter and the wire-type cutting machine are suspended from the cutting target place in the air. If the swing arm is fixed in), a state appears as if the wire-type cutting machine is fixed to the cutting target, and the wire saw is rotationally driven with this swing arm fixed to perform cutting. Can be implemented. As a result, complicated work such as fixing the drive wheel and the base member supported by the tension maintaining means to the cutting target portion using a screw hole and a bolt formed by drilling the cutting target portion in advance. It is possible to easily cut an object even if the place where such complicated work is forced to be performed at a high place or under the water surface without performing the above operation. The advantage is that the danger of falling is significantly reduced, and the need for a specialized diver is not required in the case of underwater.

Further, according to the present invention having the above-mentioned features,
By using the wire-type cutting machine adapter according to claim 1 and performing cutting using the wire-type cutting machine mounted on the free end of the swing arm of the civil engineering work machine, the driving wheels can be cut. When the supported self-propelled unit travels on the track as the cutting progresses and finally reaches the end on the track, as shown in FIGS. The self-propelled unit 8 is moved from the start end 6a on the track 6 to the end 6b by moving the wire type cutting machine itself together with the adapter by a rocking operation or a propulsion operation of the civil engineering work machine itself. The cutting operation can be restarted while running toward the vehicle. When the size of the cut target portion is large, the self-propelled unit 8 is cut while traveling from the start end 6a to the end 6b on the track, and the self-propelled unit 8 reaches the end 6b on the track. At this time, the wire type cutting machine is freely moved away from the cutting target by operating the swinging arm or the like of the civil engineering work machine, and the self-propelled unit 8 is moved from the start end 6a on the track 6 toward the end 6b. A series of operations "restarting the disconnection operation" may be repeated many times (as many times as necessary). As a result, it is possible to complete an effective cutting while maintaining the tension of the wire saw without complicated work of shortening the length of the wire saw during the cutting operation, regardless of the size of the cut target portion. In addition, there is an effect that it is not necessary to discard expensive wire saw fragments.

A mounting portion provided in the adapter for a wire-type cutting machine according to the first aspect of the present invention, which has the above-mentioned characteristic configuration, is characterized in that the main body of the wire-type cutting machine including the driving wheel includes Selectable mounting is possible between a first mounting posture extending from the mounting portion to the swing arm side and a second mounting posture in which a portion of the wire saw wound around the cutting target portion extends from the mounting portion to the swing arm side. Is configured. Therefore, as illustrated in FIG. 6 and FIG.
Is a civil engineering and construction work machine 50 equipped with a wire type cutting machine 2.
Is located below the feet of the wire type cutting machine main body 2a including the driving wheel 20 (from the wire type cutting machine 2 to the wire saw 24).
Civil construction in which the wire-type cutting machine 2 is mounted in the first mounting posture extending from the mounting portion 32 toward the swing arm 54, and the wire-type cutting machine main body 2a is stopped as the cutting progresses. The working machine may be gradually moved away from the front of the working machine 50 (in the direction indicated by the arrow in the figure), or the working machine 50 itself may be gradually advanced, as shown in FIG. Also, when the cutting target location T4 is located at a high place, the wire type cutting machine main body 2a is mounted in the first mounting posture extending from the mounting portion 32 to the swing arm 54 side, provided that the cutting progresses. The civil engineering and construction work machine 50 side where the wire-type cutting machine main body 2a is stopped (the direction indicated by the arrow in the figure)
Or a work method that gradually moves the working machine 50 for civil engineering and construction from the cutting target location T4. On the other hand, as illustrated in FIG. 9 and FIG. If located, wire saw 24
24f wound around the cutting target portions T5, T6
Is mounted in the second mounting position extending from the mounting portion 32 toward the swing arm 54, and the wire-type cutting machine main body 2a is stopped as the cutting operation by the wire saw 24 proceeds (see FIG. (In the direction indicated by the arrow in the middle), or a work method may be adopted in which the work machine 50 for civil engineering and construction is gradually moved away from the cutting target places T5 and T6.
In other words, the wire-type cutting machine main body can be mounted on either side of the mounting portion, depending on the positional relationship between the cutting target location and the civil engineering work machine, and as a result, as illustrated above. The effect that the cutting operation can be smoothly performed in various positional relationships assumed between the cutting target portion and the civil engineering work machine is obtained.

In order to achieve the above object, an adapter for a wire type cutting machine according to claim 3 of the present invention comprises a driving wheel rotatably supported, a cutting target portion and the driving wheel. A first motor means for rotatingly driving the endless wire saw wound through the rotation of the driving wheel, and a tension maintaining means for removing loosening of the wire saw caused by the progress of cutting. Used in cooperation with a wire-type cutting machine having a mounting portion for mounting on a free end of a swing arm of a working machine for civil engineering, and supporting the wire saw between the cutting target portion and the drive wheel. And a conversion means capable of changing the extending direction of the wire saw between the cutting target portion and the main body of the wire-type cutting machine, and further contacting the cutting target portion.
It is characterized by having a contact portion that can be made to contact .

According to the present invention having the above-mentioned features,
When the adapter for a wire-type cutting machine according to claim 3 is used, a conversion means for changing the extending direction of the wire saw between a portion to be cut and a main body of the wire-type cutting machine is provided. Can be attached to the free end of the swinging arm of the civil engineering work machine, and the swing operation of the boom and swing arm of the civil engineering work machine and the propulsion operation of the civil engineering work machine itself It is possible to easily arrange the conversion means mounted on the swing arm so as to face the cut target portion (even if the cut portion is very high or under water). become. Then, the above-mentioned state in which the conversion means faces the cutting location (this may be a state in which the adapter or the conversion means is pressed against the cutting target location, or a state in which the adapter or the conversion means is suspended from the cutting target location in the air) If the swing arm is fixed in step (1), a state appears as if the conversion means were fixed to the cutting target portion. With the swing arm fixed, the wire saw is rotationally driven to perform cutting. be able to. As a result, there is no need to perform a complicated operation such as fixing the conversion means to the cutting target portion by using a bolt or the like which is previously drilled and implanted in the cutting target portion, and is illustrated in FIG. As described above, the adapter for the wire-type cutting machine is a long member 130 (made of H steel or the like), and the adapter 130 for the long wire-type cutting machine is used.
Is provided at one end thereof with the conversion means 1 at the other end.
As long as 50 is provided, even if the place where this complicated work is forced is the cutting target location T8 below the water surface (or the cutting target location is a high place where it is difficult for the worker to access), the conversion means 150 Can be freely arranged in these hard-to-reach places, and the effect that the object can be cut easily can be obtained (the merit that the danger of falling of devices and equipment at high places is eliminated, In this case, the need for a specialized diver is unnecessary, which is particularly advantageous.) Further, in claim 3 of the present invention,
The wire-type cutting machine adapter according to
Since it has a contact part that can be contacted, cutting
The object is unstable and friction with the wire saw during cutting
If vibration is likely to occur, use an adapter for a wire-type cutting machine.
Is pressed against the cutting target via the contact portion.
If the cutting is performed while maintaining the state, the aforementioned vibration is suppressed.
Effect that the cutting work can be performed smoothly.
can get.

Further , in order to achieve the above object, the present invention
An adapter for a wire-type cutting machine according to claim 4.
The rotatable drive wheels are rotatably supported,
An endless wire saw wound around the driving wheel is
Motor means for rotationally driving via rotational movement of a driving wheel
And loosening of the wire saw caused by the progress of cutting
And a wire cutting machine having tension maintaining means for removing
An adapter for a wire-type cutting machine used by being operated,
An armor attached to the free end of the swing arm of a civil engineering work machine
A base end including an attachment portion and the wire saw
The wire by supporting it between the
The direction in which the saw extends is determined by
A tip including a switching means that can be changed between the main bodies of the disconnector.
Having, between the proximal end and the distal end, the proximal end
The angle of the distal end with respect to the proximal end to the distal end
Angle adjustment means for changing around the axis extending toward
It has a characteristic configuration.

In order to have such a characteristic configuration,
The wire-type cutting machine according to claim 4 of the present invention.
In the case of the adapter for
Conversion means to change between the place and the body of the wire cutting machine,
Civil engineering work via this wire-type cutting machine adapter
Can be attached to the free end of the swing arm of the machine.
In addition, the swing of the boom and swing arm of the civil
Movement and the propulsion operation of the civil engineering and construction work equipment itself.
Move the conversion means attached to the moving arm to the cutting target
Face-to-face arrangement.
You. And the above-mentioned state in which the conversion means faces the cut position
(This is because the adapter or conversion means pushes the
In place, or with an adapter or convertible
(The step may be suspended in the air away from the section to be cut.)
If the moving arm is fixed, it is as if the
A state appears to be fixed to the elephant part,
With the beam fixed, the wire saw is driven to rotate for cutting.
Can be implemented. That is, the conversion means is
Using bolts, etc. that are drilled and implanted
To perform complicated operations such as fixing the
In addition, the adapter for the wire type cutting machine is a long member
And one end of this long wire type cutting machine adapter
As long as the provided mounting part is provided and the conversion means is provided at the other end,
The place where this cumbersome work is forced
Location (or if the location to be cut is
(Even in hard-to-reach places)
It can be placed freely in difficult places,
The effect that cutting can be easily performed is obtained. further,
The wire-type cutting machine according to claim 4 of the present invention.
The adapter between the proximal end and the distal end
The angle of the distal end with respect to the proximal end is forward from the proximal end.
Angle adjustment changing around the axis extending toward the tip
Means for wire cutting machine adapter
A work machine for civil engineering and construction equipped with
It is difficult to place the work machine for civil engineering
From the line connecting the wire cutting machine and
Position the wire saw properly.
Through the conversion means on the adapter for the wire cutting machine
Can support and carry out the original smooth cutting work
You.

[0013] To achieve the above object, the cutting method according to claims paragraph 5 of the present invention, the following claims
Range wire-type cutting machine according to paragraph 1 or paragraph 2, soil
A part of the free end of the swing arm of the working machine for wooden construction;
And a tip of the bucket cylinder connected to the tip of the bucket cylinder via the first mounting portion of the adapter for a wire-type cutting machine according to claim 1.
2. The second type of the adapter for a wire-type cutting machine according to item 1.
A cutting method used in a state of being connected via a mounted portion , wherein the tension maintaining means includes a support pole erected from a base member that can be fixed to an adapter for a wire type cutting machine, and a support pole provided on the support pole. Said drive wheel slidably supported,
A second motor means for slidingly driving the drive wheel between a first end and a second end on the support pole, and comprising the following steps: By operating the work machine for civil engineering and its swinging arm,
The free end of the swing arm is arranged such that the main body of the wire-type cutting machine faces a cutting target portion. <2> The drive in which the wire saw is positioned near the first end of the support pole Wrap around the loop and the cutting target, <3>
While cutting the cut target portion by the orbiting movement of the wire saw through the rotation of the drive wheel, the slack that occurs in the wire saw in accordance with the progress of the cutting is reduced by the forward rotation of the second motor means. Removing by sliding operation from the first end of the support pole toward the second end,
<4> When the drive wheel approaches the second end of the support pole by the sliding operation, the drive wheel is returned toward the first end of the support pole, and the operation of the work machine for civil engineering and construction is performed. Thereby, the free end of the swing arm is moved so that a predetermined tension is generated in the wire saw. <5> If necessary, the above-mentioned <3> is performed until a predetermined cutting operation is completed.
And each step of <4> is repeated.

With such a configuration, if cutting is performed using the cutting method according to claim 5 of the present invention, the cutting method is cited in claims 1 or 2 of the present invention . In addition to eliminating the need for complicated preparation work of fixing a wire-type cutting machine to a cutting target portion with a screw hole and a bolt means formed in the cutting target object in advance, the <3>
As a result of proceeding the cutting along the process, even if the driving wheel approaches the second end of the support pole due to the sliding operation, it is no longer possible to remove the slack generated in the wire saw, but as the <4> process, the driving wheel is removed. Return to the first end of the support pole,
By operating the work machine for civil engineering and construction, the free end of the swing arm can be moved so that a predetermined tension is generated again in the wire saw. Then, when the size of the portion to be cut is large, a series of operations including the step <3> and the step <4> may be repeated many times (as many times as necessary). As a result, the cutting work is simplified with less preparation work, and regardless of the size of the cutting target,
The tension of the wire saw is maintained without complicated work for shortening the length of the wire saw during the cutting work (basically, the cutting of the object is completed without shortening the wire saw once). However, an effective cutting can be completed while avoiding the need to discard expensive wire saw fragments.

Here, in the cutting method according to claim 5 , the <4> step includes: <4-1> stopping the second motor, or keeping the second motor in the normal rotation state while the civil engineering building is being rotated. Operating the working machine, the free end of the swing arm is separated from the cut target position by a predetermined distance, whereby the drive wheel is moved to the first position of the support pole against the braking force of the second motor. Force return to the end. What is necessary is just to have the structure provided with the small process. With such a configuration, the operation of returning the drive wheels toward the first end of the support pole can be performed without depending on the reverse rotation operation of the second motor, and as a result, the <4> An effect is obtained that the process can be quickly performed by operating the swing arm from the operation room of the civil engineering work machine.
Of course, the drive wheel is returned to the first end of the support pole.
May be performed by the reverse rotation operation of the second motor.
No.

Further, in order to achieve the above object, a cutting method according to claim 7 of the present invention is characterized by the following.
5. A cutting method carried out using the wire-type cutting machine adapter according to the third or fourth aspect , wherein the tension maintaining means comprises a wire-type cutting machine provided separately from the wire-type cutting machine adapter. Machine body, the driving wheel slidably supported on the wire cutting machine body, and sliding operation of the driving wheel between the first end and the second end of the wire cutting machine body. And (1) controlling the position and orientation of the free end of the swing arm based on the operation of the civil engineering and construction work machine. By doing so, the conversion means of the adapter for the wire-type cutting machine is fixed at a position facing the location to be cut. <2> The wire saw is positioned on the first end side of the body of the wire-type cutting machine. Wound around the drive wheel and the cutting target <3> While cutting the cut target portion by the orbiting motion of the wire saw through the rotation of the drive wheel, the slack generated in the wire saw in accordance with the progress of the cutting is reduced by the forward rotation of the second motor means. The drive wheel is removed by sliding operation from the first end of the wire-type cutting machine body toward the second end of the wire-type cutting machine main body. At the time of approaching the second end, the drive wheel is returned toward the first end of the wire-type cutting machine main body, and at the same time, the wire-type cutting machine main body is set so that a predetermined tension is generated in the wire saw. Move operation. <5> If necessary, repeat steps <3> and <4> until a predetermined cutting operation is completed.

With such a configuration, if the cutting is performed using the cutting method according to claim 7 of the present invention, the cut target portion and the third or fourth claim are cut.
Due to the large level difference between the driving wheels of the wire-type cutting machine cited in the section , even if it is necessary to change the direction of extension of the wire saw between the point to be cut and the driving wheels, This eliminates the need for the complicated preparation work of fixing the conversion means to the cutting target portion with screw holes and bolt means formed in the cutting target object in advance, and proceeds with cutting along the step <3>. As a result, even if the driving wheel approaches the second end of the wire-type cutting device main body due to the sliding operation and the slack generated in the wire saw can no longer be removed, as the <4> step, the driving wheel is connected to the wire-type cutting device. The wire cutting apparatus main body can be moved so that the wire saw is returned to the first end direction of the main body and a predetermined tension is generated again in the wire saw. Then, when the size of the portion to be cut is large, a series of operations including the step <3> and the step <4> may be repeated many times (as many times as necessary). As a result, the cutting work is simplified with less preparation work, and regardless of the size of the cutting target,
The tension of the wire saw is maintained without complicated work for shortening the length of the wire saw during the cutting work (basically, the cutting of the object is completed without ever shortening the wire saw once). However, an effective cutting can be completed while avoiding the need to discard expensive wire saw fragments.

Other features and advantages of the present invention include:
The description will become apparent from the description of the embodiment using the drawings.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described with reference to the drawings. [First Embodiment] FIGS. 1 and 2 show an example of a wire-type cutting machine, an example of a free end portion of a swing arm of a working machine for civil engineering, and a working machine 50 for civil engineering and construction. 3 shows an adapter 30 for a wire type cutting machine according to the present invention used to connect to the free end of a swing arm 54 of the present invention. Using the wire-type cutting machine adapter 30, the wire-type cutting machine 2
Is attached once to the free end of the swing arm 54 of a backhoe (an example of a construction machine for civil engineering) illustrated by a two-dot chain line in FIG. And posture can be freely operated.

(Structure of Wire-Type Cutting Machine) The wire-type cutting machine 2 has an endless wire saw 24 (an example is shown in FIG. 18) and a drive wheel 20 for making the wire saw 24 circulate. . The wire saw 24 is formed by covering the periphery of a metal wire with a rubber layer, and further providing a layer of bead-like diamond particles at regular intervals around the rubber layer. Cut out from the body at a part other than the diamond layer, cover the metal core (wire part) at the end created by the cut with a metal sleeve, connect it with a special caulking tool and endlessly connect it and use it (An example of the “caulking” operation is shown in FIG. 18-B). On the other hand, an annular groove 20a for receiving the wire saw 24 is formed on the outer periphery of the drive wheel 20, and a friction coefficient with the wire saw 24 is increased around the entire circumference of the annular groove 20a. A rubber lining is provided to prevent wear by diamond particles. The wire-type cutting machine 2 further includes a base member 4 and a support pole 6 vertically provided from one end of the base member 4. The base member 4 is a rigid body made of metal or the like.
c is formed vertically. The support pole 6 is made of steel and has a square or rectangular cross-sectional shape. On one side surface, a rack gear 6a extending along the longitudinal direction of the support pole 6 is provided as shown in FIGS. I have. further,
A self-propelled unit 8 rotatably supporting the drive wheel 20 is slidably fitted on the support pole 6. The self-propelled unit 8 is a hydraulic motor for rotating the drive wheel 20. 10 (an example of a first motor means).

From the vicinity of the base end of the support pole 6,
A steel horizontal rod 16 also extends, and the horizontal rod 16 has four auxiliary pulleys 18 (18a, 18b, 18).
c, 18d) are attached so as to be detachable and position-changeable, respectively, and the wire saw 24 can be wound around both the drive wheel 20 and the auxiliary pulley 18. As best shown in FIG. 4, the horizontal rod 16 is attached to the support pole 6 by, for example, tightening bolts 16a so that the horizontal rod 16 can be attached and detached and its position can be changed in the horizontal direction. The wire type cutting machine 2 includes a portion between the drive wheel 20 and the wire saw 24 and a portion to be cut and the wire saw 2.
In order to obtain a necessary frictional force during the period 4, a tension adjusting mechanism for increasing the tension applied to the wire saw to a predetermined value or more is provided. This tension adjusting mechanism includes a first tension adjusting mechanism and a second tension adjusting mechanism. The first tension adjusting mechanism is a position changing means for changing the distance from the driving wheel 20 or the self-propelled unit 8 to the base member 4, and specifically, as shown in FIG. 1, FIG. 2 and FIG. And self-propelled unit 8
An electric motor 12 (an example of a second motor means) provided in the self-propelled unit 8 for slidingly driving itself between the first end 6b and the second end 6c on the support pole 6,
In order to reliably convert the rotational movement of the electric motor 12 to the sliding movement of the self-propelled unit 8, a pinion 12a provided on the rotating shaft of the electric motor 12 meshes with a rack gear 6a on the support pole 6 (FIG. 4). On the other hand, the second tension adjusting mechanism is selectively used as the auxiliary pulley 18 (1).
8a, 18b, 18c, 18d), winding an extra part of the wire saw 24 around all or a part of these auxiliary pulleys 18 helps to adjust the tension, and at the same time, the wire saw from the wire type cutting machine 2 A space suitable for the size of the cut target portion can be provided between the outlet and the inlet of the 24.

The hydraulic pressure for driving the hydraulic motor 10 in the self-propelled unit 8 is supplied from a service oil passage 50 s provided in the working machine 50 for civil engineering and construction, and is set to 100 volts for driving the electric motor 12. Power supply is civil engineering construction work machine 5
The structure is obtained from outside 0. On the other hand, the hydraulic motor 10
ON / OFF of the drive, and ON / OFF of the drive of the electric motor 12 and switching of the rotation direction can be remotely controlled by switches provided on an operation panel 50b installed in an operation room of the working machine 50 for civil engineering and construction. Among these switches, a volume switch for setting the tension applied to the wire saw 24 is included. (The greater the set tension by the volume switch, the higher the cutting work efficiency, but the higher the rate at which the wire saw 24 is cut. The hardness may be appropriately adjusted in accordance with the hardness and size of the cut target portion, the state of the diamond layer of the wire saw 24, and the like.)

(Structure of Swing Arm and the Like) As shown in FIG. An arm 54 is pivotally supported on the boom 52 so as to be able to swing vertically. The swing arm 54 includes a swing arm body 56 and a bucket cylinder 58 attached to a predetermined position of the swing arm body 56 so as to swing vertically.
It is composed of As shown in FIGS. 1 and 2, at the free end of the swing arm main body 56, two horizontally extending through holes 56a and 56b are formed so as to be separated from each other in the longitudinal direction of the swing arm. I have. In addition, bucket cylinder 5
Piston 5 protruding from 8 and capable of telescopic operation by hydraulic operation
One horizontally extending through hole 58b is also formed at the free end of 8a. Through-hole 5 on the base end side of swing arm body 56
6a, one end of a pair of first bucket links 60, 60 is pivotally supported via one pin, and a piston 58a
The other end of the first bucket link 60 and another pair of second bucket links 6
The two ends are simultaneously pivoted with one pin.

(Structure of Adapter) On the other hand, the adapter 30
Has a main plate 32 made of steel, which is generally flat, and two auxiliary plates 34a and 34b also made of steel, which are erected on the first surface 32G of the main plate 32. A plurality of first mounting holes 32a, second mounting holes 32b, and third mounting holes 32c (all of which are examples of mounting portions) for fastening the base member 4 with the bolt and nut means 4a are formed at a plurality of locations on the main plate 32. Have been. In addition, each auxiliary plate 34a,
34b, the adapter 30 is attached to the swing arm 5 of the backhoe.
In a state where the first through holes 36, 36 (an example of a mounted portion) and the second through holes 38, 38 (similarly, an example of a mounted portion) for connecting to the auxiliary plates 34a, 34 are connected to each other.
b.

The wire cutting machine 2 can be selectively installed on either the front surface (first surface 32G) or the back surface (second surface 32H) of the main plate 32. In other words, the first to third mounting holes 32a, 32b, 32
c indicates that the wire-type cutting machine main body including the drive wheel 20 has the first surface 3.
2G side, and as a result, the first mounting posture (FIGS. 1, 2, 3, 6, 7, and 7) extending from the mounting portion to the swing arm 54 side.
8 and 11), and the wire-type cutting machine main body including the driving wheel 20 is fixed to the second surface 32H. As a result, the portion 24f wound around the cutting target portion of the wire saw 24 is moved from the mounting portion to the swing arm. The second mounting posture extending to the side 54 (FIG. 9)
And the state shown in FIG. 10). That is, as illustrated in FIGS. 6 and 7, when the cutting target location T3 is located under the foot of the civil engineering and construction work machine 50 to which the wire-type cutting machine 2 is mounted, the wire is placed in the first mounting posture. The wire-type cutting machine 2 is mounted, and the wire-type cutting machine main body 2a is gradually moved away from the front side (in the direction indicated by the arrow in the figure) of the civil engineering and construction work machine 50 as the cutting progresses, or What is necessary is just to take the working method which makes the construction work machine 50 itself gradually advance. On the other hand, as illustrated in FIG. 9 and FIG.
When the civil engineering and construction work machine 50 equipped with the wire-type cutting machine 2 is located at a level that is significantly lower than the ground on which the work machine 50 is placed and in front of the ground, the work is mounted in the second mounting posture, and as the cutting progresses. The wire type cutting machine main body 2a is gradually pulled toward the stopped civil engineering construction working machine 50 side (the direction indicated by the arrow in the figure) or the civil engineering building working machine 50 itself is gradually moved away from the cutting target locations T5, T6. Just take the method.

Further, the support pole 6 is attached to the adapter 30.
Angle adjusting means for changing the setting of the angle with respect to the main plate 32 is provided. The angle adjusting means is specifically,
As best shown in FIGS. 4 and 5, bolts 4b, 4b,. . Has been realized. That is, as shown in FIG. 5-A or FIG. 5-B, the bolts 4b, 4b,. . Are projected downward from the base member 4 and fastened by the bolt and nut means 4a, so that the support pole 6 can be connected to the main plate 32 in a state where it is not perpendicular but inclined appropriately. . By using this angle adjusting means, it is possible to freely cope with a case where the angle of the cut surface formed at the cut target portion by the cutting is strictly specified.
The support pole 6 shown by a two-dot chain line in FIG. 7 is supported by only the swing operation of the adapter 30 by the swing arm 54 in order to cut the cut target portion T3 accurately and horizontally (as indicated by the solid line). (When the pole 6 cannot be set to the horizontal position)
The support pole 6 is inclined with respect to the adapter 30 in the same direction as shown in FIG.

(Connecting Step of Wire-Type Cutting Machine and Swing Arm) As shown in FIGS. 1 and 2, when the wire-type cutting machine 2 is mounted on the swing arm 54 of the backhoe, the following steps are performed. Just follow it. <1> The mounting hole 32a of the main plate 32 of the adapter 30,
One of 32b and 32c is aligned with the through hole 4c of the base member 4, and the bolt and nut means 4a is inserted into the through hole 4c to fasten the two. <2> A first through hole 36b of the swing arm body 56 is connected to the first through hole 36, 36 of the adapter 30 with a pin. <3> A second bucket link is connected to the second through hole 38, 38 of the adapter 30. The other ends of 62, 62 are connected by pins.

Taking the situation of FIGS. 6 and 7 (solid line) as an example,
The cutting operation may be performed in the following manner. <1> The operation of the work machine 50 for civil engineering and construction and the swing arm 54 causes the wire-type cutting machine main body 2a to cut the target portion T3.
The free end of the swing arm 54 is arranged so as to be opposed to. <2> The wire saw 24 cut at one location is wound around the drive wheel 20 located near the second end 6c of the support pole 6 and the cut target location T3, and the ends of the wire saw 24 are “sewn” together. Make it endless. <3> While the cutting target point T3 is cut by the orbiting motion of the wire saw 24 through the rotation of the drive wheel 20, the looseness generated in the wire saw 24 as the cutting progresses as shown in FIG. The drive wheel 20 is moved from the second end 6c of the support pole 6 to the first end 6 by the forward rotation of the electric motor 12 of FIG.
(4) The driving wheel 20 is moved by the sliding operation toward the b .
When approaching one end 6b , the drive wheel 20 is connected to the support pole.
After returning to the direction of the second end 6c , as shown by the arrow A in FIG. Move the free end of the arm 54 (this may be performed by the swing operation of the boom 52 or the swing arm 54 or the propulsion operation of the civil engineering work machine 50 itself). <5> If necessary, a predetermined The steps <3> and <4> are repeated until the cutting operation is completed.

The operation of "returning the drive wheel 20 to the direction of the second end 6c of the support pole" in the step <4> is performed by first stopping the forward rotation of the electric motor 12, Is stopped to stop the rotation of the wire saw 24, and then the electric motor 12 is rotated in the reverse direction. However, the same "drive wheel 20 is supported by the second end of the support pole .
The operation of “return to 6c direction” is performed by stopping the hydraulic motor 10 to stop the rotation of the wire saw 24,
2 is stopped, and the boom 5 of the civil engineering construction work machine 50 is stopped.
2, the swinging operation of the swinging arm 54, the propulsion or retreat of the civil engineering work machine 50 itself, or a combination of these operations may be forcibly performed against the braking force of the electric motor 12.

Also, as shown in FIG. 8, when the cutting target portion T4 is located at a high place, the wire type cutting machine 2 can be mounted in the first mounting posture similar to that of FIGS. 6 and 7. Good. However, as the cutting progresses, the wire type cutting machine body 2a
May be gradually returned to the stopped civil engineering construction work machine 50 side (the direction indicated by the arrow in the figure), or the civil construction work machine 50 itself may be gradually moved away from the cutting target point T4.

Although the first mounting posture has been described above, in the second mounting posture where the portion wound around the cutting target portion of the wire saw 24 extends from the mounting portion 32 toward the swing arm 54, as shown in FIG. In addition, it is suitable for a cutting operation in a case where the cutting target location T5 is located at a level lower than the ground where the working machine 50 for civil engineering and construction equipped with the wire type cutting machine 2 is placed and in front thereof. In this case, if the tension cannot be maintained in the traveling of the self-propelled unit 8 (sliding operation on the support pole) as the cutting proceeds, the boom 5
2 or the swing arm 54 swings the wire type cutting machine body 2a gradually toward the stopped civil engineering construction working machine 50 side (the direction indicated by the arrow in the figure), or the civil engineering building working machine 50 itself. May be taken backward so as to gradually move away from the cutting target portion T5.

As described above, FIGS. 1, 2, 3, 6, 7, 8 and 9
In the first embodiment, the adapter 30 is mounted in the first or second mounting position using the first mounting hole 32a of the mounting portion of the adapter 30. Alternatively, the second mounting hole 32b or the second mounting hole 32c is used.
Is used, the surface formed by the wire saw 24 is
2 and the swinging arm 54 can cooperate with each other to change the angle formed with respect to the surface formed by the cooperation, so that the cutting operation can be performed in various conditions of the shape of the object to be cut and the position to be cut (see below). In the example, the angle is changed in units of about 90 °, but is not limited thereto.)

For example, if the wire saw 24 is mounted using the second mounting hole 32b, the surface formed by the wire saw 24 is
And the swing arm 54 cooperate with each other to form a state along a vertical plane. As shown in FIG. 10, the cutting target T6 extending in the horizontal direction or the like is cut along the vertical cutting plane. It becomes possible.

The cutting object T7 having an unstable posture as shown in FIG. 11 (for example, another work) is not a stable cutting object such as a structure embedded on the ground as exemplified above. When cutting a reinforced concrete block that is cut and separated from a building and placed on the ground, the coefficient of friction of the rotating wire saw 24 with respect to the cross section of the cutting object changes every moment. This may cause a problem that the cutting target T7 and the wire saw 24 vibrate and the cutting does not proceed smoothly. However, as shown in FIG.
0 is formed on the contact surface 32H (the wire-type cutting machine 2 is
When the wire cutting machine 2 is mounted on the second surface 32H, the first surface 32G becomes the contact surface when the wire cutting machine 2 is mounted on the second surface 32H.
Is cut in a state in which the cutting object T7 is in contact with the cutting object T7, the wire saw 24 is connected to the cutting object T7 via the contact surface 32H of the adapter 30 based on the tension maintaining function of the self-propelled unit 8.
Can be kept pressed against the wire-type cutting machine. As a result, a stable state in which the vibration of the cutting object T7 is suppressed can be obtained, and a smooth cutting can be performed.

Here, from the state in which the drive wheel 20 indicated by the solid line in FIG. 11A is located at the first end 6b of the support pole, cutting is started while maintaining the tension by the traveling of the self-propelled unit 8, and cutting is started. Progresses, as shown by the two-dot chain line in FIG. 11-A, when the wire saw 24 cuts into the inside of the object T7 to be cut and the drive wheel 20 reaches the second end 6c of the support pole, The tension maintaining function of the self-propelled unit 8 is lost, and the cutting operation cannot be continued. Therefore, it is necessary to restore the tension maintaining function to the self-propelled unit 8 by the operation according to the following procedure. In such a situation, conventionally, FIG.
As illustrated in FIG. 8-A, two appropriate portions 24a of the wire saw 24 are cut by a wire saw cutter 200, a part 24x of the wire saw 24 is discarded, and as shown in FIG. 24y, both ends 24a,
The length of the wire saw 24 is shortened by placing a metal sleeve on the metal sleeve 24a and performing "caulking" with a wire saw caulking device 210, so that the self-propelled unit 8 can again exert the tension maintaining function. Was.

However, here, as shown in FIG. 11B, when the self-propelled unit 8 loses its tension maintaining function,
By interposing the spacer M between the cutting object T7 and the contact surface 32H of the adapter 30, the self-propelled unit 8 recovers the tension maintaining function again. Thereby, while continuing the stable cutting work using the contact surface 32H,
In addition, the operation is released from the complicated operations of cutting and swaging the wire saw 24, and a part of the wire saw 24 does not need to be discarded. It should be noted that if the upper and lower surfaces of the spacer M are appropriately provided with anti-slip means for the object to be cut and the contact surface 32H of the adapter 30, a more stable cutting operation can be performed. Further, as illustrated in FIG. 11-C, if a jack J as a means capable of changing the distance between the upper and lower surfaces is used together with the spacer M, it is prepared in advance for various patterns of the shape and size of the cut target portion. In addition, the number of types of spacers M having different height dimensions is relatively small.

[Second Embodiment] FIG. 12 shows an example of a wire-type cutting machine mounted stationary on the ground, an example of a free end portion of a swing arm of a working machine for civil engineering, and a construction for civil engineering. 5 shows an adapter 130 for a wire type cutting machine according to the present invention, which can be mounted on the free end of the swing arm 54 of the work machine 50. Since the wire-type cutting machine adapter 130 is provided with the conversion means 150 for changing the direction in which the wire saw 24 extends between the cutting target point T8 and the wire-type cutting machine, the wire-type cutting machine adapter 130 is provided. Once attached to the free end of the swing arm 54 of the backhoe (an example of a civil engineering work machine), the position and orientation of the conversion means 150 can be freely operated by operating the backhoe from the operation room.

(Structure of Wire-Type Cutting Machine) The wire-type cutting machine 102 shown in FIG. 12 is a stationary type (here, specifically, a working spud barge N) mounted on the ground (however,
The movement can be performed appropriately). In this example, the cutting target portion T8 is
It is located at a position (for example, a steel pipe pile supporting the wharf installed in the harbor from the sea floor) which is greatly lowered (e.g., several meters) from the position shown in FIG.
Therefore, in order to cut this target place T8 horizontally with the wire saw 24 of the ground wire cutting machine 102, the extending direction of the wire saw 24 must be changed between the target place T8 and the wire type cutter 102. Will be needed.

The wire-type cutting machine 102 includes a frame-shaped wire-type cutting machine main body 104, a horizontal and long support rod 106 constituting a part of the wire-type cutting machine main body 104, and reciprocating on the support rod 106. It has a possible self-propelled unit 108. The self-propelled unit 108 includes a drive wheel 12
0 is rotatably supported. Self-propelled unit 1
08 is a hydraulic motor 1 for driving the drive wheels 120 to rotate.
10 and an electric motor 112 for moving the self-propelled unit 108 itself on the support rod 106. A linear rack gear (not shown) is provided on the support rod 106 along its longitudinal direction, and a pinion gear (not shown) driven to rotate by the electric motor 112 meshes with the rack gear. The self-propelled unit 108 that linearly travels on the support rod 106 based on the forward rotation of the electric motor 112 generates a necessary frictional force between the drive wheel 120 and the wire saw 24 and between a cutting target portion and the wire saw 24. It constitutes a tension adjusting mechanism for obtaining. That is, the self-propelled unit 108 is moved from the first end 106a on the support rod 106 to the second end 106b.
The cutting can be advanced while the wire saw 24 maintains a constant tension by rotating the drive wheel 120 while gradually moving the wire saw toward. The structure of the swing arm 54 of the working machine 50 for civil engineering and construction is the same as that of the first embodiment, and the structure of the drive wheel 120 and the tension adjusting mechanism are also essentially the same as those of the first embodiment.

Because the object to be cut is large, the self-propelled unit 108 is moved to the second end 106b on the support rod 106 before the cutting of the point T8 to be cut is completed, as shown by the two-dot chain line in FIG. , The self-propelled unit 108 is first returned to the first end 106a on the support rod 106, and then, as shown in FIG. The machine body 104 is moved away from the cutting target point T8, and the self-propelled unit 108 is again turned on.
The cutting step of rotating the driving wheel 120 while moving the driving wheel 120 from the first end 106a toward the second end 106b may be restarted. When the wire-type cutting machine main body 104 is moved as described above, the wire-type cutting machine adapter 13 is also used.
0, and the position and orientation of the conversion means 150 may basically remain fixed (i.e., if a horizontal cutting plane is sufficient).

The wire-type cutting machine adapter 130 is shown in FIG.
The main body 131 includes an elongated H-shaped steel main body 131 extending vertically in the posture shown in FIG. 2 and an auxiliary member 132 extending horizontally from the lower end of the main body 131. At the upper end of the main body 131, a mounted portion 133 for mounting to the free end of the swing arm 54 of the civil engineering work machine 50 is formed, and a pair of conversion means 150, 150 is provided with an auxiliary member on the lower end side. 132 are provided near the left and right ends. Specifically, each conversion means 150 includes first pulleys 152a and 152b rotatable about a vertical rotation axis and second pulleys 154a and 154b rotatable about a horizontal rotation axis (first). The axes of the pulley and the second pulley intersect each other.). Driving wheel 120 of wire type cutting machine 102 and cutting target location T8
The wire saw 24 wound between the wire cutters emits driving wheels 120, and firstly, a part of the peripheral surface of an auxiliary pulley 118a (having a horizontal rotation axis) provided on the left side of the front end of the wire type cutting machine 102. Section, the second pulley 154a on the left side as viewed from the operation room of the civil engineering work machine 50, and then the first pulley 1
52a, and sequentially passes while cutting over the cutting target location T8, this time the first pulley 152 on the right side.
b, and then continuously circulates through the second pulley 154b and further through a part of the peripheral surface of the auxiliary pulley 118b on the right side of the wire cutter 102, finally returning to the drive wheel 120. That is, the first pulleys 152a and 152b and the second pulley 15
4a and 154b smoothly move the extending direction of the wire saw 24 between the cutting target point T8 and the wire-type cutting machine main body 104 (specifically, the auxiliary pulleys 118a and 118b) by movably supporting the wire saw 24. can do.

A contact portion 140 is provided near the lower end of the adapter 130 for a wire-type cutting machine, which can be pressed against a portion to be cut as required. In the case where vibration is likely to occur due to friction with the wire 24, the wire-type cutting machine adapter 130 is connected to the contact portion 1 in a manner similar to that described in the first embodiment.
If the cutting is performed while maintaining the state of being pressed against the cutting target portion via 40, the above-described vibration is suppressed and a smooth cutting operation can be performed.

Further, as best shown in FIG. 13, the main body 131 made of a long H-shaped steel comprises an upper member 131a on which a mounting portion 133 is formed, and conversion means 150, 150.
And an upper member 131a and a lower member 131b.
b are connected to each other so that the rotation angle around the axis along the longitudinal direction can be changed. Specifically, the upper member 13
A plurality of through holes 131g, 131 enabling connection by bolt means are provided on both opposing surfaces of the lower member 1a and the lower member 131b.
h are formed, and these through holes are four arc-shaped long holes. Therefore, the bolt means is slightly loosened, and the upper member 131a and the lower member 131b are rotated around the axis by a desired amount (since the bolt means can be moved in the elongated holes 131g or 131h).
When the bolt means is tightened again, even when the backhoe 50 cannot be arranged behind the wire-type cutting machine main body 104 as shown in FIG. 14, for example, the conversion means 150, 150 having the same position and posture as in FIG. It can be supported by the swing arm 54 of the backhoe 50. In FIG. 14, the backhoe 50 is disposed at a position completely different from that of FIG. 12 (position oblique to a line connecting the wire-type cutting machine main body 104 and the cutting target point T8 in plan view). The boom 52 and the swing arm 54 of the backhoe 50 extend in an inclined direction of about 45 ° with respect to the wire saw 24 extending between the cutting target point T8 and the wire-type cutting machine main body 104 in a plan view. The upper member 131a and the lower member 131b
Only one of the through holes may be a long hole.

[Another Embodiment] <1> In the first embodiment, between the support pole 6 of the wire type cutting machine and the self-propelled unit 8, the self-propelled unit 8 is connected to the first end 6b of the support pole 6 and the second end. A limit position detection mechanism for detecting the proximity to the end 6c may be provided. FIG.
The limit position detection mechanism exemplified in FIG.
And a pair of microswitches 6p and 6q disposed at the first end 6b and the second end 6c. If the detection result by the limit position detection mechanism is displayed on a display panel or the like in the operation room of the civil engineering work machine, or is notified to an operator by a buzzer or the like, the drive wheels are supported by the first and second support poles. Since the signal indicating that the end is approached is notified to the operator via the limit position detecting mechanism, the self-propelled unit uses the signal to perform the second rotation based on the forward rotation of the second motor means (electric motor). When near the edge, and
The time when the self-propelled unit approaches the second end can be reliably determined based on the reversal of the electric motor or the forcible movement of the swing arm or the like, resulting in a smoother cutting operation. Can be implemented.

<2> In the first embodiment, at the time of forcible return operation of the drive wheel of the wire type cutting machine, a specific signal generated based on the reverse rotation of the second motor means (electric motor) is detected, and the specific signal is detected. Based on the analysis of the above, monitoring means may be provided to inform the operator of the civil engineering work machine that the tension applied to the wire saw is within a safe range not reaching the tensile breaking strength of the wire saw. With this configuration, the operator monitors the operation of bringing the self-propelled unit close to the second end based on the forcible movement by the operation of the swing arm or the like, and that the tension applied to the wire saw is within the safe range. It can be performed while checking by means.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a wire type cutting machine.

FIG. 2 is a perspective view showing a state in which the wire type cutting machine of FIG. 1 is attached to a swing arm using the adapter according to the present invention.

FIG. 3 is a perspective view showing the wire type cutting machine of FIG. 1 together with the entire swing arm of the civil engineering work machine.

FIG. 4 is a partially cutaway side view showing a base member and a part of a support pole of the wire cutting machine of FIG. 1;

FIG. 5 is a partially cutaway side view showing an angle adjusting means of the wire type cutting machine of FIG. 1;

FIG. 6 is a perspective view illustrating the usage of the wire-type cutting machine and the adapter in FIG. 1;

FIG. 7 is a side view illustrating the usage of the wire-type cutting machine and the adapter in FIG. 1;

FIG. 8 is a side view illustrating another usage state of the wire cutting machine and the adapter of FIG. 1;

FIG. 9 is a side view illustrating still another use state of the wire cutting machine and the adapter of FIG. 1;

FIG. 10 is a side view illustrating another usage state of the wire cutting machine and the adapter of FIG. 1;

FIG. 11 is a side view illustrating still another use state of the wire cutting machine and the adapter of FIG. 1;

FIG. 12 is a side view illustrating the use of the wire-type cutting machine different from FIG. 1 and the adapter according to the present invention;

FIG. 13 is a perspective view showing a part of the adapter of FIG. 12;

FIG. 14 is a side view illustrating another usage state of the wire cutting machine of FIG. 12 and the adapter according to the present invention;

FIG. 15 is a perspective view showing another embodiment of the wire type cutting machine of FIG. 1;

FIG. 16 is a perspective view illustrating a conventional method of using the wire cutting machine of FIG. 1;

FIG. 17 is a perspective view illustrating a conventional method of using the wire cutting machine of FIG. 12;

FIG. 18 is a schematic view showing an example of an operation for shortening a wire saw.

[Description of Signs] 2,102 Wire type cutting machine 4 Base member 6 Support pole 8,108 Self-propelled unit 10 Hydraulic motor 12 Electric motor 20,120 Drive wheel 24 Wire saw 30,130 Adapter 32 Main plate 32a, 32b, 32c Mounting Hole (mounting portion) 32G, 32H contact surface 34 auxiliary plate 36 first through hole (mounting portion) 38 second through hole (mounting portion) 54 swing arm 56 swing arm body 58 bucket cylinder 60 first bucket link 62 Second bucket link 133 Mounted part

Claims (8)

[Claims] 1. A first wheel for rotatably driving a rotatably supported drive wheel and an endless wire saw wound around a cutting target portion and the drive wheel through a rotational motion of the drive wheel. Used in cooperation with a wire-type cutting machine having a motor means and a tension maintaining means for removing the slack of the wire saw caused by the progress of cutting, and attached to a free end of a swing arm of a working machine for civil engineering and construction. And a mounting portion for mounting the wire-type cutting machine, wherein the mounting portion is configured such that the wire-type cutting machine body including the driving wheel is mounted on the swing arm side from the mounting portion. It is configured to be selectively mountable between a first mounting posture that extends and a second mounting posture in which a portion of the wire saw wound around the cutting target portion extends from the mounting portion toward the swing arm. Adapter for wire cutting machine. 2. A first wheel for rotatably driving a rotatably supported drive wheel and an endless wire saw wound around a cutting target portion and the drive wheel through a rotational motion of the drive wheel. Used in cooperation with a wire-type cutting machine having a motor means and a tension maintaining means for removing the slack of the wire saw caused by the progress of cutting, and attached to a free end of a swing arm of a working machine for civil engineering and construction. By supporting the mounted portion to perform and the wire saw between the cutting target portion and the drive wheel, the extending direction of the wire saw can be changed between the cutting target portion and the main body of the wire type cutting machine. Adapter for a wire type cutting machine provided with various conversion means. 3. The device according to claim 1, further comprising: a base end on which the mounted portion is formed, and a tip end provided with the conversion means, and wherein the base end is provided between the base end and the tip end. The adapter according to claim 2, further comprising an angle adjusting means for changing an angle of the distal end portion with respect to a portion around an axis extending from the base end portion toward the distal end portion. 4. The wire-type cutting machine according to claim 1 is mounted on a free end of a swing arm of a working machine for civil engineering via the adapter for a wire-type cutting machine according to claim 1. Cutting method, wherein the tension maintaining means comprises: a support pole erected from a base member fixable to an adapter for a wire-type cutting machine; and the drive wheel slidably supported on the support pole. Moving the drive wheel on the first support pole
A cutting method comprising a second motor means for performing a sliding operation between the end and the second end, the cutting method comprising the following steps: <1> By operating the working machine for civil engineering and its swinging arm, The free end of the swing arm is arranged so that the main body of the wire-type cutting machine faces a cutting target portion. <2> The drive in which the wire saw is positioned near the first end of the support pole Winding around a wheel and a cutting target portion, <3> While cutting the cutting target portion by the revolving motion of the wire saw through the rotation of the drive wheel, loosening occurring in the wire saw in accordance with the progress of the cutting, The drive wheel is removed by sliding operation from the first end of the support pole toward the second end of the support pole by forward rotation of the second motor means. <4> The drive wheel is driven by the sliding operation to The second end of the support pole At the time of approaching, the drive wheel is returned to the first end direction of the support pole, and the swing arm is moved so that a predetermined tension can be obtained on the wire saw by operating the work machine for civil engineering and construction. <5> If necessary, repeat the steps <3> and <4> until a predetermined cutting operation is completed. 5. The cutting method according to claim 4, wherein the <4> step includes the following small steps: <4-1> temporarily stopping the second motor means during forward rotation and To return the drive wheel toward the first end of the support pole. <4-2> Based on the operation of moving the free end of the swing arm by operating the work equipment for civil engineering and construction. The drive wheel is separated from the cutting target by a predetermined distance so that a predetermined amount of tension can be obtained on the wire saw. 6. The cutting method according to claim 4, wherein the <4> step comprises the following steps: <4-1> the second motor is stopped or the normal rotation is maintained, and the cutting method is used for the civil engineering construction. By operating the work machine, the free end of the swing arm is separated from the cut target point by a predetermined distance, whereby the drive wheel is driven against the first end of the support pole against the braking force of the second motor. Force return to the direction. 7. The driving wheel is supported by a self-propelled unit slidable on the support pole, and between the support pole and the self-propelled unit, the first end of the self-propelled unit and A limit position detection mechanism for detecting proximity to the second end is provided; and in the <4> step, the limit position detection mechanism indicates that the drive wheel has approached the second end of the support pole. The sliding operation of the drive wheel toward the first end is started based on the signal of the above, and a signal from the limit position detection mechanism indicating that the drive wheel has approached the first end of the support pole is provided. The cutting method according to claim 4, 5 or 6, wherein the sliding operation of the drive wheel toward the first end is stopped based on the operation. 8. The method according to claim 2, wherein the tension maintaining means is implemented by using the adapter for a wire type cutting machine.
A wire-type cutting machine main body provided separately from the wire-type cutting machine adapter; the drive wheel slidably supported on the wire-type cutting machine main body; and the wire-type cutting machine A cutting method comprising a second motor means for sliding operation between a first end and a second end of the main body, the cutting method comprising the following steps: <1> Based on the operation of the working machine for civil engineering and construction By controlling the position and attitude of the free end of the swing arm, the conversion means of the adapter for the wire-type cutting machine is fixed at a position facing a portion to be cut. <2> The wire saw is connected to the wire Wrap around the drive wheel positioned on the first end side of the main body of the type cutting machine and the cut target location. <3> Cut the target location by the orbital movement of the wire saw through the rotation of the drive wheel. While, according to the progress of the cutting, Removing the slack that occurs in the earsaw by sliding the drive wheel from the first end of the wire-type cutting machine body toward the second end by forward rotation of the second motor means, <4> the When the drive wheel approaches the second end of the wire-type cutting machine main body by a sliding operation, the drive wheel is returned toward the first end of the wire-type cutting machine main body, and at the same time, the wire saw is connected to the wire saw. Move the main body of the wire-type cutting machine so as to obtain a predetermined tension. <5> If necessary, repeat the steps <3> and <4> until the predetermined cutting operation is completed. .