JPH07164430A - Cutting apparatus using wire saw - Google Patents

Abstract

PURPOSE:To provide the title cutting apparatus usable even when there is no wide place around an object to be cut, capable of reducing the moving quantity of a heavy device such as a drive device and improved in safety and workability. CONSTITUTION:A cutting apparatus 10 bringing a wire saw Ws running at a high speed into contact with an object St to be cut to cut the object St is constituted of a plurality of support means 17A, 17B allowing a plurality of guide pulleys 16a, 16b arranged so as to leave an interval therebetween to advance or retreat with respect to the object St to be cut, guide means 15a-15d guiding the running wire saw Ws to the guide pulleys 16a, 16b supported by a support means, a wire saw driving device 11 and the excessive length adjusting device of the wire saw and the wire saw driving device 11 and the excessive length adjusting device are arranged in an immovable state. By this constitution, the moving quantity of the wire saw to the object to be cut corresponding to cutting quantity can be accurately controlled to contribute to the remote operation of cutting work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device using a wire saw, and more particularly to a cutting device using a wire saw provided with a wire saw surplus length adjusting device.

[0002]

2. Description of the Related Art As a conventional cutting method for cutting a concrete structure or the like with a wire saw, there is, for example, the following method. (i) In the cutting method shown in FIG. 11, the cart 1 equipped with the wheels 1a ₁ is used.
a, the driving wheel 1b, a driving device 1 configured with a motor for driving when necessary wheel 1a ₁ and the drive wheel 1b is arranged on the guide path 2, a wire saw Ws, subjected to a driving wheel 1b, and the structure St The wire saw Ws is attached to the guide pulleys 3a, 3b, 3c, 3d at the same time around the lateral direction of the portion.
And the like, and the drive wheels 1a of the drive device 1 are positively rotated by a motor or the like to run the wire saw Ws at high speed, while the wheels 1a ₁ are rotated by the motor or the like to drive the drive device 1 in the direction of the white arrow. The structure St is laterally cut by the wire saw Ws traveling at high speed while being moved to, and supplying cooling water to the cutting portion. (ii) In the cutting method shown in FIG. 12, the structure St is provided with a lateral through hole St _1, and the trolley 1a equipped with the wheel 1a ₁ , the driving wheel 1b, the wheel 1a ₁ and the driving wheel 1b are driven when necessary. The drive device 1 including the motors, the guide pulleys 1c, 1d, etc. is arranged on the guide path 2, and the turret body 3 built near the front side of the structure St guides the guide pulleys 4a, 4b, 4c, 4d.
The wire saw Ws is hung on the drive wheel 2b and the guide pulleys 1c and 1d, and one end of the wire saw Ws is hung on the guide pulleys 4a and 4b to guide it to the upper side and the rear side of the structure St. The end of the saw Ws is passed through the through hole St ₁ and guided to the front side of the structure St. The end of the wire saw Ws is connected to the other end of the wire saw Ws by the guide pulleys 4c and 4d to form an endless motor. actively rotating the drive wheel 1b in such, while high-speed running a wire saw Ws, rotate the wheel 1a ₁ by a motor or the like to move the driving device 1 in the direction of the white arrow, the cooling water to the cutting portion The structure St is vertically cut by the wire saw Ws traveling at high speed while being supplied.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the cutting method (ii), a wire saw Ws is applied around the lateral or vertical direction of the structure portion to be cut, and the drive wheel 1b of the driving device 1 is positively rotated by a motor or the like to perform the wire sawing. It is necessary to rotate the wheels 1a ₁ of the driving device 1 by a motor or the like while traveling at high speed Ws to move the driving device 1. Therefore, there is a drawback that it cannot be used in a narrow space where the long guide path 2 cannot be provided for moving the drive device. Further, even if there is a wide place where the long guide path 2 is provided and the drive device 1 can be moved for a long distance, the mixture of the cooling water and the cutting powder supplied to the cutting portion is scattered over a wide range along with the wire saw. However, it has the drawback of contaminating a large area. Therefore, adopting the above cutting methods (i) and (ii) for the dismantling of concrete structures of nuclear facilities has major problems in terms of radiation exposure of workers and expansion of radiation pollution. is there. The problem to be solved by the present invention is to provide a cutting device that uses a wire saw that does not have the above-mentioned drawbacks of the conventional (i) and (ii) cutting methods, in other words, the periphery of an object to be cut. An object of the present invention is to provide a cutting device that uses a wire saw that can be used without a wide space, can reduce the movement amount of the device used for cutting, is easy to control, is safe, and has good workability.

[0004]

The present invention adopts the following constitution in order to solve the above problems. The configuration of the present invention is a cutting device for bringing a wire saw traveling at high speed into contact with an object to be cut and cutting the same, and a wire saw drive device and a wire saw surplus length adjusting device. It is in a cutting device that uses a saw. In a preferred embodiment, a plurality of support means for advancing and retracting two guide pulleys arranged at intervals with respect to an object to be cut, and a guide means for guiding a wire saw traveling to the guide pulley supported by each support means. The wire saw driving device and the wire saw surplus length adjusting device constitute a cutting device, and the drive device and the surplus length adjusting device are arranged immovably. In a more concrete form, for example, (A) the cutting device is configured by a pulley moving body configured by attaching a guide pulley moving means to a long support member, a driving device, and a surplus length adjusting device. And the extra length adjusting device is fixedly arranged, and
(B) a pushing device constituted by a cutting device, in which a plurality of elongated arm-like supports are attached in a cantilever manner at intervals to a support part of a moving body, and a guide pulley is attached to the tip of each arm-like support,
A drive device, a surplus length adjusting device, and guide means for guiding a wire saw traveling at high speed by driving the drive device to the surplus length adjusting device and the pushing device, and the drive device and the surplus length adjusting device are arranged immovably. .

As a surplus length adjusting device, in a preferred embodiment, a large number of guide pulleys are attached to the first support member at intervals, and a large number of guide pulleys are attached to the second support member at intervals. 1 support member and 2nd
And a guide pulley attached to the first support member and a guide pulley attached to the second support member are alternately arranged to allow the wire saw to move. The length of the wire saw hung between a number of guide pulleys can be adjusted by adjusting the spacing, but other lengths can also be used. Any structure may be used as long as the size can be finely adjusted. The invention of the present application can also be expressed as a method invention. According to the configuration of the present invention, in a cutting method in which a wire saw traveling at a high speed is circulated to bring it into contact with an object to be cut to cut it, the wire saw is caused to travel at a high speed by a driving means, and the length of the circulated wire saw is an extra length. A cutting method using a wire saw, characterized in that a part of a circulating wire saw is brought into contact with an object to be cut while being adjusted by an adjusting means, and the object to be cut is pushed or cut off. The wire saw is cooled with a liquid or gas cooling agent. Water is usually used to cool the wire saw. The extra length adjusting device may be installed close to the driving device,
It may be installed separately from the driving device. The cutting device and the cutting method according to the present invention are mainly used for cutting a structure made of concrete, reinforcing bars, steel frames or the like, but can also be used for cutting other cutting objects.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cutting device 10 according to a first embodiment is shown in FIGS.
As shown in FIG. 3, the structure St is cut vertically by moving the guide pulley with the pulley moving body. As shown in FIG. 1, a lateral through hole St ₁ is formed in the structure St. The drive device 11 includes a machine casing 11a, drive wheels 11b provided in the machine casing 11a, a motor for driving the drive wheels 11b, and the machine casing 11a.
Guide pulleys 11c ₁ and 11c ₂ provided above and below the drive wheel 11b inside thereof, and guide pulleys 11c ₃ 11c ₄ and 11 provided above and below the machine frame 11a at intervals above and below.
c ₅ and 11c ₆ , and a guide pulley 11c _{7 and the} like provided below the rear of the machine frame 11a. Two support members 11d are provided above the rear side of the machine frame 11a of the drive device 11 at intervals, and the support length adjustment device 12 is supported by the support members 11d. Extra-length adjustment device 12, as shown in FIG. 5, the upper shaft 12a, adjustors 12 with a gap adjusting unit 12c ₁ for adjusting the spacing of the lower shaft 12b, the upper shaft 12a and the lower shaft 12b
c, guide pulleys 12d ₁ , 12d ₃ , 12d ₅ rotatably attached to the upper shaft 24a at intervals, and guide pulley 12d rotatably attached to the lower shaft 12b at intervals.
₂ , 12d ₄ , 12d _{6 and the} like. Structure St
A base 13 is provided on the front side of the base 13, and a turret 14 including a plurality of columnar bodies 14a, 14b, beam-like bodies 14c, 14d, etc. is built on the base 13. A guide pulley 15a on the columnar body 14a,
15b is attached, and the guide pulley 15 is attached to the columnar body 14b.
Mount c and 15d so that the mounting height can be adjusted. In addition, pulley moving bodies 17A and 17B for moving the guide pulleys 16a and 16b are attached to the columnar body 14b so that the attachment height can be adjusted. When using the immovable base 13,
The pulley moving body 17A is attached after passing through the through hole St ₁ of the structure St, and the pulley moving body 17B is arranged and attached on the upper side of the structure St.

The pulley moving bodies 17A and 17B are shown in FIGS. 2 to 4, in which a long groove 17a ₁ is provided on the front side surface of a long rectangular tube body 17a and is screwed into a female screw hole 17b ₁ of a moving member 17b. The feed screw rod 17c is inserted into the tubular body 17a, the tip of the feed screw rod 17c is rotatably supported by the bearing 17d ₁ , and the portion from the base of the feed screw rod 17c is rotatably supported by the bearing 17d _2. Then, the chain wheel 17e ₁ is fixed to the base of the feed screw rod 17c, and the transmission-equipped motor 17f is attached to the rear side surface of the tubular body 17a.
The chain wheel 17e ₂ is fixed to the rotating shaft of 7f, and the two chain wheels 17e ₁ and 17e ₁ and 17e ₂ are inserted through the hole 17a _{2 on} the rear side surface of the tubular body 17a.
Put a chain on e ₂ . The shaft 1 is provided on the front side of the moving member 17b.
7g is projected in a substantially horizontal direction, and the tip portion is extended to the long groove 17a ₁
From the guide pulley 16a, 1
6b is attached to form pulley moving bodies 17A and 17B. Wire saw Ws, the guide pulley 11c _7,
11c ₂ , drive wheel 23b, guide pulleys 11c ₁ , 11
c ₃ , 11c ₄ , 15a, 15c, 16b, 16a, 15
_{d, 15b, 11c 5, 11c} 6, 12d 6, 12d 5, 1
2d ₄ , 12d ₃ , 12d ₂ , 12d ₁ etc. are connected endlessly. As the wire saw Ws, a wire having a large number of blade portions formed by embedding diamond powder at intervals is used. In addition, the pulley moving body 17
Before attaching A and 17B to the columnar body 14b, the wire saw Ws is put on the drive wheel or another guide pulley to be endless.

When the movable base 13 is used, the structure St
A turret 14 is built in front of the base 13 on the base 13, and the turret 14 has guide pulleys 15a to 15d and pulley moving bodies 17A, 1A.
After attaching 7B, the pulley moving body 17A becomes the structure S.
Entering the through hole St _{1 of} t, the base 13 is moved so that the pulley moving body 17B is located above the structure St. Then, the base 13 is stopped so as not to move. Next, how to use the cutting device 10 of the first embodiment will be described. Drive device 11
The drive wheel 1b is rotated by the operation of the motor, the wire saw Ws is run at a high speed, the interval adjusting means 12c ₁ of the extra length adjusting device 12 is started, and the length of the interval adjusting body 12c is gradually shortened. The motor 17f is operated to rotate the feed screw rod 17c to move the guide pulleys 16a and 16b forward, and the traveling wire saw Ws is pressed against the structure St from the front side to cut the concrete, rebar, and steel frame of the structure St. The length of the interval adjusting body 12c is shortened according to the cutting amount. Coolant (eg, cooling water) at the cut
Continue to supply. Then, the structure St is vertically pushed down. Completion of the cutting operation, by reversing the motor 17f, the guide pulley 16a, 16b is retracted, and by operating the distance adjusting means 12c ₁ of the extra-length adjustment device 12 in the reverse direction, the length of the interval regulation member 12c While gradually extending,
The pushing device 22 is retracted to its original position. When the structure St is cut laterally, the pulley moving bodies 17A, 1
7B are attached to the columnar body 14b of the turret 14 at intervals in the horizontal direction, and a shaft 17g is provided so as to project substantially vertically to horizontally support the guide pulleys 16a and 16b.

A cutting device 20 according to the second embodiment is shown in FIG. 6, and is a device for advancing and retracting a pushing device 22 to vertically cut a structure St. Two lateral holes St ₁ are vertically spaced in the structure St that is the object to be cut. The guide path 21 is laid on the front side of the structure St, and the pushing device 22 is installed thereon. Pressing device 22, carriage 22a, the columnar body 22b provided upright on the carriage 22a, the arm-like support 22c ₁ pair mounted horizontally at an interval in front of the pillar 22b, 22c provided with a wheel 22a _{1 2} , guide pulleys 22d ₁ and 22d ₂ attached to the tips of the supports 22c ₁ and 22c ₂ , and guide pulleys 22d ₃ , 22d ₄ , 22d ₅ and 22d attached to the rear side of the columnar body 22b at intervals in the vertical direction. ₆ , wheels 2
It is composed of a motor or the like for driving 2a ₁ . 2
4 is a device for collecting chips and cooling water. The drive device 11 and the extra length adjusting device 12 are installed on the rear side of the pushing device 22.
The configurations of the driving device 11 and the extra length adjusting device 12 are the same as those in the first embodiment. The wire saw Ws has a guide pulley 11
c ₇ , 11c ₂ , drive wheel 23b, guide pulley 11
c ₁ , 11c ₃ , 11c ₄ , 22d ₄ , 22d ₃ , 22d ₂ ,
22d ₁ , 22d ₆ , 22d ₅ , 11c ₅ , 11c ₆ , 12
They are connected endlessly through d ₆ , 12d ₅ , 12d ₄ , 12d ₃ , 12d ₂ , 12d ₁ .

Next, how to use the cutting device of the second embodiment will be described. The motor that drives the drive device 11 is started to rotate the drive wheels 11b, and the wire saw Ws travels at a high speed. The motor of the pushing device 22 is started to gradually rotate the wheels 22a ₁ , and the interval adjusting means 12c ₁ of the extra length adjusting device 12 is started to gradually reduce the length of the interval adjusting body 12c. The guide pulley 22d at the tips of the arm-like supports 22c ₁ and 22c ₂ of the pushing device 22.
While inserting ₁ and 22d ₂ into the lateral holes Sta, the running wire saw Ws is pressed against the structure St from the front side to cut concrete, rebar, steel frame and the like of the structure St. According to the cutting amount, the pushing device 22 is moved forward to move the space adjusting body 12
Shorten the length of c. Continue supplying cooling water to the cutting part. Then, the structure St is vertically pushed down. During the cutting operation, the collection device 24 collects the mixture of the cutting chips and the cooling water. To complete the cutting work, the motor for driving the wheels 22a ₁ of the pushing device 22 is rotated in the opposite direction, and the surplus length adjusting device 12
The interval adjusting means 12c ₁ is operated in the reverse direction to gradually extend the length of the interval adjusting body 12c, and the pushing device 22 is retracted to the original position. The cutting device 20 of the second embodiment is
Since the extra length adjusting device 12 is provided on the rear side of the drive device 11 and the pushing device 22 is provided on the front side of the drive device 11, the pushing device 2 is provided.
Even if 2 is moved back and forth, the drive device 22 and the extra length adjusting device 12
Need not be moved. When the structure St is cut laterally, the arm-shaped supports 22c ₁ and 22c ₂ are attached to the columnar body 22b at intervals in the horizontal direction, and the guide pulley 2
2d ₁ and 22d ₂ are supported horizontally.

The cutting device 30 of the third embodiment is shown in FIG. 7, and cuts the structure St vertically by pulling. A lateral through hole St ₁ is bored in the structure St, and the turret body 3 built on the front side of the structure St is used to guide the guide pulleys 4 a and 4 a.
b, 4c, 4d are supported. A drive device 11 and a surplus length adjusting device 12 are provided separately from the sword body 3. The configurations of the driving device 11 and the extra length adjusting device 12 are the same as those in the first embodiment. The extra length adjusting device 12 uses the wire saw Ws as the structure S.
At the stage of applying t, the length of the interval adjusting body 12c is shortened to reduce the storage length. Wire saw Ws
Is a guide pulley 11c ₇ , 11c ₂ , a drive wheel 23b,
Guide pulleys 11c ₁ , 11c ₃ , 11c ₄ , 4a, 4
_{b, 4c, 4d, 11c 5} , 11c 6, 12d 6, 12
They are connected endlessly over d ₅ , 12d ₄ , 12d ₃ , 12d ₂ , 12d ₁ . Next, how to use the cutting device of the third embodiment will be described. The motor for driving the drive device 11 is started to rotate the drive wheels 11b, the wire saw Ws is caused to travel at a high speed, and the space adjusting means 12 of the extra length adjusting device 12 is driven.
c ₁ is started to gradually extend the distance adjuster 12 c,
The wire saw Ws at the cutting portion is pulled forward, the traveling wire saw Ws is pressed against the structure St from the rear side, and the concrete, rebar, steel frame, etc. of the structure St are cut. The length of the interval adjusting body 12c is extended according to the cutting amount. Continue supplying cooling water to the cutting part. Then, the structure St is vertically cut off. In addition, if the wire saw Ws is wound around the structure St in the lateral direction, the structure St can be cut off laterally.

The surplus length adjusting device 40 of the fourth embodiment is shown in FIGS. 8 to 10 and can be used in the cutting device of the first to third embodiments. As shown in FIGS. 9 to 11, on the base 41, there is provided a support frame 42 in the shape of an arm, which is composed of a pair of columnar vertical members 42a and upper horizontal members 42b. Both ends of the movable horizontal member 43 are vertically movably inserted into the vertical grooves of each vertical member 42a. The transmission shafts 44a and 44b are arranged between the lower parts and the upper parts of the vertical members 42a at both ends of the support frame 42 to arrange the vertical members 42a.
Attach it to a. Chain wheels 44c and 44d are fixed to portions of both ends of the transmission shafts 44a and 44b, respectively.
One end of the chain 44e hooked on the chain wheel 44d is fixed to the upper side of the movable horizontal member 43, and the other end of the chain 44e is hooked on the chain wheel 44c and then fixed to the lower side of the movable horizontal member 43. The rotation of the motor M ₄ arranged on the base 41 is transmitted to the moving shaft 44a via a transmission or the like. A guide pulley 45a is provided at an interval on the central support portion 41a on the front side of the platform 41,
45q is attached horizontally, and guide pulleys 45b and 45p are attached to the outsides of the lower portions of both vertical members 42a of the frame body 42.
Guide pulleys 45c, 45 are provided on the front side of the upper lateral member 42a.
e, 45g, 45i, 45k, 45n are attached, and guide pulleys 45d, 45f, 45 are provided on the front side of the movable lateral member 43.
h, 45j, 45m are attached, and each guide pulley 45b
.About.45p are located on substantially the same plane. The extra length adjusting device 40 of the fourth embodiment is configured so that the forward / reverse rotation of the motor M ₄ is transmitted to the transmission shaft 44.
By transmitting to a, the upper horizontal member 42b and the movable horizontal member 4
The distance between the guide pulleys 45c and 45 changes.
e, 45g, 45i, 45k, 45n and the distance between the guide pulleys 45d, 45f, 45h, 45j, 45m can be changed to adjust the extra length, and the wire saw Ws can be used over 45a to 45q. . Although the extra length adjusting device is connected to the drive device in the first to third embodiments, the extra length adjusting device may be installed separately from the drive device.

[0013]

The present invention has the following effects (a) to (f) by having the structure described in the section of the claims. (A) Since the cutting device according to claim 1 includes a wire saw driving device and a wire saw surplus length adjusting device,
It is possible to cut without having to move the drive device largely, and to cut even if there is no large space around the cutting object. Also, the moving amount of the heavy device can be reduced, and the moving amount of the wire saw relative to the cutting object according to the cutting amount. Can be controlled accurately, which is useful for remote control of cutting work. (B) As described in claim 2, the cutting device travels on a plurality of supporting means for moving a plurality of guide pulleys arranged at intervals with respect to the object to be cut and a guide pulley supported by each supporting means. Guide means for guiding the wire saw to
If it consists of a wire saw driving device and a wire saw surplus length adjusting device, and the drive device and surplus length adjusting device are immovably arranged, the amount of movement of the heavy device will be small and the moving means for moving the guide pulley will be simple. The support means for moving the guide pulley forward and backward with respect to the object to be cut can be separated from the drive device and the surplus length adjusting device, which increases the degree of freedom in the installation position of the cutting device and makes the object to be cut safe even in a narrow place. Can be accurately cut with good workability. (C) As described in claim 3, the cutting device comprises a pulley moving body configured by attaching a guide pulley moving means to a long supporting member, a wire saw driving device, and a wire saw surplus length adjusting device. If the drive unit and extra length adjusting device are installed immovably, the amount of movement of the heavy device will be small, and the amount of movement of the guide pulley with respect to the object to be cut can be accurately controlled according to the amount of cutting, ensuring safe workability. The object to be cut can be cut. (D) As described in claim 4, the cutting device has a plurality of elongated arm-shaped supports mounted in a cantilever manner on the support portion of the movable body at intervals, and a guide pulley is provided at the tip of each arm-shaped support. A pushing device configured by mounting, a wire saw driving device,
An extra length adjusting device for the wire saw, and a guide means for guiding the wire saw traveling at high speed by driving the drive device to the extra length adjusting device and the pushing device, and when the drive device and the extra length adjusting device are installed immovably, The amount of movement of the heavy device is small, the amount of movement of the pushing device relative to the cutting object can be controlled accurately according to the cutting amount, and the movement of the guide pulley relative to the cutting object can be easily controlled remotely, ensuring accurate cutting. It can be done with good workability. (E) According to the fifth aspect, a surplus length adjusting device capable of storing a long wire saw can be obtained with a simple structure, and a high-performance cutting device can be provided at low cost. (F) According to claim 6, the moving amount of the heavy means (device) used for cutting can be reduced, and the moving amount of the wire saw to be cut according to the cutting amount can be accurately controlled. The cutting operation can be remote controlled.

[Brief description of drawings]

FIG. 1 is a front view showing an outline of a cutting device according to a first embodiment.

FIG. 2 is a front view of a pulley moving body of the cutting device according to the first embodiment.

FIG. 3 is a side view of the pulley moving body of FIG. 2 taken along the line AA.

FIG. 4 is a side view of the pulley moving body of FIG. 2 taken along the line BB.

FIG. 5 is a side view of a surplus length adjusting device of the cutting device according to the first embodiment.

FIG. 6 is a front view showing an outline of a cutting device according to a second embodiment.

FIG. 7 is a front view showing an outline of a cutting device according to a third embodiment.

FIG. 8 is a front view of a surplus length adjusting device according to a fourth embodiment.

FIG. 9 is a plan view of a surplus length adjusting device according to a fourth embodiment.

FIG. 10 is a side view of a surplus length adjusting device according to a fourth embodiment.

FIG. 11 is a front view showing an outline of a conventional cutting device.

FIG. 12 is a front view showing an outline of another conventional cutting device.

[Reference Numerals] 10, 20, 30 cutting device 11 drives 11b the driving wheels 12 extra-length adjustment device 12c adjustors 12c ₁ gap adjusting unit 12d ₁ to 12d ₆ guide pulley 14 tower _{16a, 16b, 22d 1, 22d} 2 guide pulley 17A, 17B pulley mobile 22 pressing device 22c _1, 22c _2-armed support 40 extra-length adjustment apparatus 42 support frame 43 movable transverse member 44a, 44b transmission shaft 44c, 44d chain wheel 44e chain 45a~45q guide pulley M ₄ Motor St Structure St ₁ Through hole

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yuichi Yamamoto Inventor Yuichi Yamamoto 8-21-1, Ginza Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Takashi Miyazaki 1-chome Otsuka, Inzai-cho, Inba-gun, Chiba Prefecture No. 5 Incorporated Takenaka Corporation Technical Research Laboratory (72) Inventor Nobuhiro Kondo 1-17-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (72) Inventor Harenori Yasojima 1-chome, Kyobashi, Chuo-ku, Tokyo No. 1 Toda Construction Co., Ltd. Head Office (72) Inventor Ken Kawasato 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. Head Office

Claims (6)

[Claims] 1. A wire saw having a wire saw driving device and a wire saw surplus length adjusting device in a cutting device for cutting a high-speed traveling wire saw by bringing it into contact with an object to be cut. A cutting device that uses. 2. A cutting device for bringing a wire saw traveling at high speed into contact with an object to be cut and cutting the object, and a plurality of supporting means for advancing and retracting two guide pulleys arranged at intervals with respect to the object to be cut. A guide means for guiding the traveling wire saw to a guide pulley supported by the supporting means, a wire saw driving device, and a wire saw surplus length adjusting device, and the drive device and the surplus length adjusting device are immovably arranged. A cutting device that uses a wire saw. 3. A cutting device for bringing a wire saw traveling at high speed into contact with an object to be cut and cutting the object, and a pulley moving body constituted by attaching a moving means of a guide pulley to a long supporting member, and a wire saw driving device. And a wire saw surplus length adjusting device, wherein the drive device and the surplus length adjusting device are arranged immovably. 4. A cutting device for contacting an object to be cut with an endless wire saw that travels at high speed to cut the object, wherein a plurality of elongated arm-shaped supports are provided in a cantilevered manner at intervals on a support part of a moving body. Mounting, a pushing device configured by attaching a guide pulley to the tip of each arm-like support, a wire saw driving device, a wire saw surplus length adjusting device, and a high speed traveling wire saw driven by the driving device. A cutting device using a wire saw, comprising: a surplus length adjusting device and a guiding means for guiding the pushing device, and a drive device and a surplus length adjusting device being immovably arranged. 5. As a surplus length adjusting device, a large number of guide pulleys are attached to a first supporting member at intervals and a large number of guide pulleys are attached to a second supporting member at intervals. The distance between the wire saw and the second support member is adjustable, and the wire saw can be moved by alternately alternating the wire saw between the guide pulley attached to the first support member and the guide pulley attached to the second support member. The wire saw provided between the plurality of guide pulleys can be adjusted in length by adjusting the distance.
A cutting device using the wire saw according to 2, 3, or 4. 6. A cutting method in which a wire saw traveling at high speed is circulated and brought into contact with an object to be cut to cut it, and the wire saw is caused to travel at high speed by a driving means to adjust the length of the circulating wire saw. A cutting method using a wire saw, characterized in that a part of a circulating wire saw is brought into contact with an object to be cut while being adjusted by means, and the object to be cut is pushed or cut off.