JP7217477B1 - construction machinery - Google Patents

Abstract

A construction machine is provided that has a guide cell corresponding to a plurality of attachments, thereby reducing the risk of damage and allowing stable work. A construction machine (CE) includes a vehicle body (V) and a work machine (W). The work machine W includes a telescopic boom 2 attached to a vehicle body V via a boom lift cylinder 1, a cell mount 4 connected to the telescopic boom 2 via an elevating mechanism 3, and a second 1 guide cell 51 and a second guide cell 52 are provided. The cell mount 4 includes a cell slide cylinder 6 for moving the first guide cell 51 and the second guide cell 52 in the longitudinal direction Y, and a guide cell extending in the longitudinal direction Y. A rotating mechanism 7 is provided for rotating about an axis. A first connecting end 51a and a second connecting end 52a of the first guide cell 51 and the second guide cell 52 are provided with an attachment mounting mechanism 55 for mounting an attachment. [Selection drawing] Fig. 1

Description

Application of Article 30, Paragraph 2 of the Patent Law (1) [Test date] October 30, 2021 [Test location] NK Building, Fuchu-cho (1-26 Odori, Fuchu-cho, Aki-gun, Hiroshima Prefecture) (2) [Test Date] November 1 to December 6, 3rd year of Reiwa [Test location] Loop home Nikori Hotto (10177-22 Ohatahara, Kuji, Asa-cho, Asakita-ku, Hiroshima-shi) (3) [Test date] November 12-13, 2021 [Test location] Samty Nishi-Hakushima-cho, Naka-ku, Hiroshima (2-2 Nishi-Hakushima-cho, Hiroshima-shi, Hiroshima) (4) [Test date] November 13, 2021 ～November 18 [Test place] Hiroshima Prefectural Rehabilitation Center for Persons with Disabilities (295-3 Taguchi, Saijo-cho, Higashi-Hiroshima City, Hiroshima Prefecture) (5) [Test date] November 19 to November 20, 2021 [Test Location] Nagatsuka 1-chome Building (1-671-1 Nagatsuka, Asaminami-ku, Hiroshima City, Hiroshima Prefecture) (6) [Test date] November 24-25, 2021 [Test location] Sanyo Expressway Takedayama tunnel

The present invention relates to a construction machine capable of simultaneously mounting a plurality of attachments, and more particularly to a construction machine that holds the attachments by different guide cells.

According to Patent Document 1, an auger machine is provided along one side surface of a rotatable guide cell, and a rotary percussion drill machine is provided along a side surface circumferentially separated by 90° from the one side surface of the same guide cell. A construction machine is disclosed in which the guide cell can be rotated into a position of use upon use of either the machine or the rotary percussion drill machine.

JP 2014-141838

However, according to the conventional construction machine described in Patent Literature 1, a single guide cell is configured to support a plurality of attachments, so a large load is applied to the guide cell. In addition, when using an auger machine or a rotary percussion drill machine, a large amount of vibration is generated, and the load on the guide cell due to the impact is increased, and there is a problem that the guide cell is likely to be damaged. There is also a problem that attaching a heavy auger machine and a rotary percussion drilling machine to a single guide cell unbalances the guide cell and makes the operation unstable.

SUMMARY OF THE INVENTION An object of the present invention is to provide a construction machine that has a guide cell corresponding to a plurality of attachments, thereby reducing the risk of damage and allowing safe and stable work.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction machine including a vehicle body and a working machine attached to the vehicle body. The work machine includes a plurality of guide cells to which various attachments for construction can be connected, a cell mount for holding the plurality of guide cells, and a cell mount provided on the cell mount to hold the guide cells with respect to the vehicle body. an elevating mechanism for elevating, a cell slide cylinder provided on the cell mount for moving the guide cell in the longitudinal direction, and a slide cylinder provided on the cell mount for rotating the guide cell about an axis extending in the longitudinal direction. and a rotation mechanism, and an attachment attachment mechanism for attaching the attachment to the end of the guide cell.
By connecting an attachment to each of a plurality of guide cells, the risk of damage to the guide cells can be reduced, and since these can be driven individually, safe and stable work is possible. Further, by rotating the guide cell by the rotating mechanism, the attachment to be used can be adjusted to the working position, and the working efficiency can be improved.

The rotating mechanism includes a rotary bracket fixed to the cell mount, and a first rotary cylinder and a second rotary cylinder respectively arranged on one side edge and the other side edge of the rotary bracket, When one of the first rotary cylinder and the second rotary cylinder expands and the other contracts, the rotary bracket rotates about the rotation shaft, and the rotation of the rotary bracket accompanies the rotation of the rotary bracket. It is characterized in that the guide cell can be rotated by pressing.
By using two rotary cylinders, the guide cell can be reliably and smoothly rotated.

The elevation mechanism is connected to the cell mount and includes a first tilt cylinder installed at one end of the cell mount and a second tilt cylinder installed at the other end of the cell mount, One of the first tilt cylinder and the second tilt cylinder is extended, and the other is contracted, so that the cell mount can be rotated to the lowered position or the raised position.
Since the first tilt cylinder and the second tilt cylinder are used as the elevation mechanism, the cell mount can be raised and lowered safely and reliably as compared with the case of raising and lowering the cell mount with one tilt cylinder. Also, by providing the first silt cylinder at one end of the cell mount and the second tilt cylinder at the other end, the risk of the cell mount falling down can be avoided.

At least part of the attachment is pneumatically driven, and an air compressor is mounted on the vehicle body.
By mounting the air compressor on the vehicle body, the weight of the vehicle body can be increased and the whole construction machine can be balanced.

The vehicle body includes an undercarriage and an upper swinging body that is rotatably provided on an upper portion of the undercarriage, and the undercarriage is provided with outriggers for fixing the vehicle body. Characterized by
By providing the outriggers, it is possible to prevent accidents such as overturning of the construction machine during work.

The present invention has a plurality of guide cells corresponding to a plurality of attachments, and rotates these guide cells about an axis extending in the longitudinal direction by a rotating mechanism. Therefore, the attachments are securely held by the corresponding guide cells, which enables safe and stable work, prevents excessive load on the guide cells, and provides a construction machine with less risk of damage. can do.

Schematic side view of the construction machine showing a state in which the guide cell is in the down position Top view of Figure 1 FIG. 2 is a diagram showing a state in which the same guide cell as in FIG. 1 is in a supine position, showing an example of use using a reinforcing pillar for construction. Front view of guide cell in supine position Partially enlarged view of the rotation mechanism

(Vehicle main body V and working machine W)
1 to 4, a construction machine CE according to the present invention includes a vehicle body V on which an operator rides, and a working machine W attached to the vehicle body V. As shown in FIG. In FIGS. 1 and 3, the vehicle body V is indicated by phantom lines for explanation. The vehicle body V includes a crawler-type lower traveling body V1 and an upper revolving body V2 rotatably provided above the lower traveling body V1, and a working machine W is provided on the upper revolving body V2. The work machine W includes a telescopic boom 2 attached to an upper rotating body V2 via a boom lift cylinder 1, a cell mount 4 connected to the telescopic boom 2 via an elevating mechanism 3, and A first guide cell 51 and a second guide cell 52 are provided. The cell mount 4 has a cell slide cylinder 6 for moving the first guide cell 51 and the second guide cell 52 in the longitudinal direction Y, and moves the first guide cell 51 and the second guide cell 52 in the longitudinal direction Y. A rotating mechanism 7 is provided for rotating around an axis extending in the direction of the axis. A first connecting end 51a and a second connecting end 52a of the first guide cell 51 and the second guide cell 52 are provided with an attachment mounting mechanism 55 for mounting an attachment.

(Elevation mechanism 3)
The elevating mechanism 3 includes a first tilt cylinder 31 and two second tilt cylinders 32 installed between the telescopic boom 2 and the cell mount 4 . The two second tilt cylinders 32 are installed separately on both sides extending in the longitudinal direction Y of the cell mount 4 . The base end of the first tilt cylinder 31 is connected to the telescopic boom 2 , and the tip end is connected to the vicinity of one end 4 a of the cell mount 4 . The base end of the second tilt cylinder 32 is connected to the telescopic boom 2, and the tip end is connected to the vicinity of the other end 4b. The cell mount 4 is connected to the telescopic boom 2 between one end 4a to which the first tilt cylinder 31 is connected and the other end 4b to which the second tilt cylinder 32 is connected. By turning to the center, it is possible to look up. That is, by contracting the first tilt cylinder 31 and extending the second tilt cylinder 32, the cell mount 4 and the telescopic boom 2 approach each other around the connecting shaft 33 and rotate to the lowered position shown in FIG. It is possible. On the other hand, by extending the first tilt cylinder 31 and contracting the second tilt cylinder 32, the cell mount 4 stands up with respect to the telescopic boom 2 around the connecting shaft 33 and rotates to the upright position shown in FIG. is movable.

By using the first tilt cylinder 31 and the second tilt cylinder 32 as the elevating mechanism 3, the cell mount 4 can be stably elevated, and the first guide cell 51 and the second guide cell 52 fixed thereto. can be looked up, and by extension the attachment fixed to this can be looked up. In addition, since the two second tilt cylinders 32 are used and interlocked with the first tilt cylinder 31 to support the cell mount 4 at three points, it is possible to prevent the first and second guide cells 51 and 52 from overturning especially in the supine position. can be suppressed. However, depending on the type of attachment, the weight of the guide cell, etc., only one of the first tilt cylinder 31 and the second tilt cylinder 32 may be provided. You can set it. Furthermore, two or more first tilt cylinders 31 and three or more second tilt cylinders 32 may be provided.

(First Guide Cell 51 and Second Guide Cell 52)
The first guide cell 51 and the second guide cell 52 are positioned on the opposite side of a first connecting end 51a and a second connecting end 52a to which various construction attachments can be connected, and are moved to the elevated position by the elevation mechanism 3. It has a first grounding end 51b and a second grounding end 52b that contact the ground when standing. The first grounding end 51b and the second grounding end 52b are provided with a fixing plate 54 from which a plurality of pins 53 protrude. The cell 51 and the second guide cell 52 can be stably installed on the ground.

(Drilling machine A and driving breaker machine B)
In this embodiment, a drilling machine A and a driving breaker machine B are used as attachments. A drilling machine A is attached to the first guide cell 51 via an attachment attachment mechanism 55 . The drilling machine A includes a rotary motor A1 connected to an attachment mounting mechanism 55 and operated by hydraulic pressure, a connecting pipe A2 connected to the rotary motor A1, and a percussion drill A3 arranged at the tip of the connecting pipe A2. The percussion drill A3 has a piston (not shown) inside the body A31, and the bit A32 arranged at the tip of the body A31 strikes as the piston slides. According to this drilling machine A, while the connecting pipe A2 is rotated by the rotary motor A1, the percussion drill A3 can drill at the tip of the connecting pipe A2. In other words, it is possible to directly hit the portion to be drilled while rotating, thereby significantly improving the drilling efficiency. In addition, as the drilling progresses, the impact with the bit A32 is performed in the ground, and the noise caused by impact can be reduced. The sliding movement of the piston of percussion drill A3 as described above is actuated by pneumatic pressure. Therefore, the rotary motor A1, which is a part of the drilling machine A, is hydraulically operated, and the percussion drill A3, which is a part thereof, is pneumatically operated. An air compressor 12 for supplying air pressure is mounted on the vehicle body V. As shown in FIG.
A driving breaker machine B is attached to the second guide cell 52 via an attachment attachment mechanism 55 . In FIGS. 1 and 3, the driving breaker machine B is shown separated from the second connecting end 52a and moved toward the second grounding end 52b, and in FIGS. 2 and 4, it is close to the second connecting end 52a. indicates The driving breaker machine B is hydraulically operated and can be driven into the ground by striking the ends of building reinforcement columns such as H steel.

(Air compressor 12)
The air compressor 12 is installed above the lower traveling body V1 of the vehicle body V and behind the upper revolving body V2 in the traveling direction X. As shown in FIG. By mounting the air compressor 12 behind the upper revolving body V2, the rear of the vehicle body V can be weighted. Since the actuator is driven in front of the vehicle body V, a load tends to be applied to the front of the vehicle body V. It is possible to prevent the CE from overturning. As the air compressor 12, for example, one having a weight of about 1600 kg can be used.

(Feed mechanism 8)
The first guide cell 51 and the second guide cell 52 each have a feed mechanism 8 for moving the attachment in the longitudinal direction Y. As shown in FIG. The feed mechanism 8 includes a hydraulic feed motor 81 installed near the first grounding end 51b and the second grounding end 52b, a sprocket 82 rotated by the hydraulic feed motor 81, a feed chain 83 suspended over the sprocket 82, Prepare. The sprockets 82 are provided in the vicinity of the first connecting end 51a and the second connecting end 52a, and in the vicinity of the first grounding end 51b and the second grounding end 52b. The feed chain 83 is endlessly rotatable over almost the entire Y length. The attachment can move back and forth in the longitudinal direction Y as the feed chain 83 rotates forward and backward.

(Rotating mechanism 7)
Referring to FIG. 5, the rotating mechanism 7 includes a rotary bracket 72 connected to the other end 4b of the cell mount 4 via a rotating shaft 71, and one side edge 72a of the rotary bracket 72. a first rotary cylinder 73 attached at a position corresponding to the first guide cell 51, a second rotary cylinder 74 attached at a position near the other side edge 72b and corresponding to the second guide cell 52; Prepare. As the first rotary cylinder 73 expands and the second rotary cylinder 74 contracts, the cell mount 4 moves leftward in FIG. Rotate in the direction On the other hand, the contraction of the first rotary cylinder 73 and the extension of the second rotary cylinder 74 cause the second guide cell 52 to rotate toward the first guide cell 51 in the right direction in FIG. do. The first guide cell 51 and the second guide cell 52 can be arranged at desired positions by operating the rotation mechanism 7 in the raised position of the first guide cell 51 and the second guide cell 52 .
By rotating the rotary bracket 72 using two rotary cylinders, the cell mount 4 can be reliably and smoothly rotated.

(Telescopic boom 2)
The telescopic boom 2 can move the first guide cell 51 and the second guide cell 52 in the traveling direction X of the vehicle body V. As shown in FIG. That is, the telescopic boom 2 is provided with a boom cylinder (not shown), and as the boom cylinder extends, the cell mount 4 fixed to the telescopic boom 2 moves forward in the direction of travel X, following this movement, the first guide cell 51 moves forward. And the second guide cell 52 also moves forward. On the other hand, the contraction of the boom cylinder causes the cell mount 4 to move backward in the traveling direction X, and the first guide cell 51 and the second guide cell 52 also move backward accordingly. By moving the first guide cell 51 and the second guide cell 52 forward and backward in the advancing direction X in this way, it is possible to finely adjust the first guide cell 51 and the second guide cell 52 in the advancing direction X in the upright position. Become.

(Winch mechanism 10)
A winch mechanism 10 is provided in the construction machine CE. More specifically, a pulley 10a capable of rotating 360 degrees is fixed near the second connecting end 52a of the second guide cell 52, and a hydraulic winch 10b is provided on the side of the second grounding end 52b. By providing the winch mechanism 10 in this way, it is possible to perform similar work without using other construction machinery such as a crane vehicle. The winch mechanism 10 can be operated by an operator or remotely operated by personnel other than the operator.

(Outrigger 11)
Furthermore, outriggers 11 can also be provided on the construction machine CE. Two outriggers 11 can be provided on each side of the undercarriage V1 of the vehicle body V, respectively. By providing the outriggers 11, the construction machine CE can be fixed during work using the attachment, and accidents such as overturning during work can be prevented.

(Example of use)
In the construction machine CE as described above, the drilling machine A and the driving breaker machine B are used as attachments. The operation of driving the reinforcing column R into the ground will be described. In this embodiment, the drilling machine A is pneumatically and hydraulically operated and the driving breaker machine B is hydraulically operated. All actuators such as cylinders other than the drilling machine A are hydraulic.

(Loading work)
The construction machine CE as described above is carried into a work site with the attachments to be used attached to the first guide cell 51 and the second guide cell 52 in advance. In this embodiment, a drilling machine A is connected to the first guide cell 51 and a driving breaker machine B is connected to the second guide cell 52 . As the vehicle main body V, for example, a hydraulic compact turning construction vehicle such as that used for a mini excavator can be used. By using such a vehicle body V, a plurality of attachments can be brought into a narrow work site at once. As shown in FIGS. 1 and 2, the first guide cell 51 and the second guide cell 52 to which the attachments are attached are held in a lowered position and transported.

At the work site, the first guide cell 51 and the second guide cell 52 are rotated by the elevation mechanism 3 from the lowered position shown in FIG. 1 to the raised position shown in FIG. That is, the operator operates to extend the first tilt cylinder 31 and contract the second tilt cylinder 32 . As a result, the cell mount 4 rotates to the upright position with respect to the telescopic boom 2 about the connecting shaft 33 . Since the first guide cell 51 and the second guide cell 52 are fixed to the cell mount 4, they also move to the supine position.

Next, the operator causes the vehicle body V to run so that the tip of the drilling machine A supported by the first guide cell 51 is roughly aligned with the drilling position. At this point, the tip of the drilling machine A and the drilling position need not be completely aligned. The operator further rotates the upper revolving body V2 of the vehicle body V so that the tip of the drilling machine A and the drilling position are positioned on the same line in the direction X of travel.

(Drilling work)
The operator extends and retracts the boom cylinder to move the cell mount 4 fixed to the telescopic boom 2 forward or backward in the traveling direction X, thereby aligning the tip of the drilling machine A with the drilling position.
When the tip of the drilling machine A matches the drilling position, the first guide cell 51 is grounded. More specifically, the first grounding end 51b of the first guide cell 51 is opposed to the ground, and the cell slide cylinder 6 is contracted to move the first guide cell 51 in the longitudinal direction Y toward the ground. Then, the plurality of pins 53 are pierced into the ground and the fixing plate 54 is pressed against the ground. Thereby, the first guide cell 51 can be fixed to the ground.

Subsequently, the operator operates the drilling machine A and also operates the feed mechanism 8 to push the drilling machine A toward the ground. That is, the operator can drive the hydraulic feed motor 81 to rotate the feed chain 83, press the drilling machine A fixed thereto against the ground, and drill the ground with the tip of the drilling machine A. After drilling to the desired position, the operator reversely rotates the hydraulic feed motor 81 to lift the drilling machine A out of the hole.

After drilling is completed, the operator extends the cell slide cylinder 6 to move the first guide cell 51 away from the ground in the longitudinal direction Y so as to separate the first guide cell 51 from the ground. As a result, the fixed plate 54 is separated from the ground and the pin 53 can be pulled out from the ground.

(Driving work)
Next, the cell mount 4 is rotated using the rotation mechanism 7 so as to embed the structural reinforcement column R in the drilled position using the driving breaker machine B. As shown in FIG. That is, by contracting the first rotary cylinder 73 attached to the position corresponding to the first guide cell 51 and extending the second rotary cylinder 74 attached to the position corresponding to the second guide cell 52, the rotary bracket 72 and the cell mount 4 is rotated. As a result, the drilling machine A of the first guide cell 51 is removed from above the hole, and the driving breaker machine B of the second guide cell 52 is positioned above the hole.

As shown in particular in FIG. 3, a structural reinforcement post R is inserted into the hole by means of a winch mechanism 10. As shown in FIG. H steel, for example, can be used as the reinforcing column R for construction. By tying the rope 10c of the winch mechanism 10 to one end of the building reinforcing column R and operating the hydraulic winch 10b, the building reinforcing column R can be lifted. The hydraulic winch 10b can be operated by an operator, but can also be remotely operated by another worker while confirming the safety of the surroundings. The other end of the structural reinforcement column R lifted by the winch mechanism 10 can be inserted into the hole.

The building reinforcing column R, the other end of which is inserted into the hole, is driven into the hole by striking one end thereof with a driving breaker machine B. Since the driving breaker machine B has already been rotated so as to be positioned over the hole, the operator can fix the second grounding end 52b of the second guide cell 52 to the ground simply by contracting the cell slide cylinder 6. can.

By driving the hydraulic feed motor 81 of the feed mechanism 8 of the second guide cell 52 and rotating the feed chain 83, the operator brings the driving breaker machine B into contact with one end of the building reinforcing column. By operating the driving breaker machine B in this state, the building reinforcement column can be driven into the hole. After driving is complete, the operator can reverse the hydraulic feed motor 81 to lift the driving breaker machine B back to its initial position.
After completing the driving work of the building reinforcement column, the operator contracts the cell slide cylinder 6 to move the second guide cell 52 away from the ground in the longitudinal direction Y so as to separate the second guide cell 52 from the ground. be able to.

As described above, according to the construction machine CE of this embodiment, the drilling machine A and the driving breaker machine B can be mounted on a single construction machine, thus eliminating the need for a plurality of work vehicles. Especially in a narrow work site, it is difficult to move a work vehicle in and out of the work site, and the work efficiency is remarkably lowered. Further, since the drilling machine A and the driving breaker machine B are carried by different guide cells, an excessive load is not applied to one guide cell, and damage to the guide cells can be prevented. Furthermore, vibrations or the like during the operation of one attachment do not directly affect the other attachment, and damage caused by this can be prevented.

The construction machine CE is also equipped with the winch mechanism 10, so that it is possible to lift the reinforcing columns for construction and does not require a separate crane truck or the like, so that it is possible to further improve the work efficiency and shorten the work time.

Since the first guide cell 51 and the second guide cell 52 are supported by one cell mount 4 and the rotation mechanism 7 is provided on the cell mount 4, the first guide cell 51 and the second guide cell 52 can be efficiently moved. can be rotated. In addition, the attachment can be easily replaced by the rotation mechanism 7, and more efficient work can be realized. By providing the rotating mechanism 7 in the vicinity of the other end 4b of the cell mount 4, it is positioned near the ground during drilling and driving work, and the influence of shaking due to rotation can be reduced.

In this embodiment, the construction machine CE is provided with a blade 13 behind the vehicle body V in the traveling direction X. As shown in FIG. Although no blade is used in the drilling and driving work described here, the provision of the blade 13 lowers the center of gravity of the vehicle body V and prevents the construction machine CE from overturning. Further, the blade 13 may be provided either in front of or behind the vehicle body V. As shown in FIG. In this embodiment, a large number of driving devices, actuators, and associated parts are arranged in the front of the vehicle body V, so the front becomes heavy. By providing the blade 13 at the rear, it can be used as a rear weight, and by providing it at the front, it can be used as a stopper to prevent the construction machine CE from tilting forward.

Although two guide cells are provided in this embodiment, the number of guide cells is not limited to two. It is also possible to mount an attachment on only one of a plurality of guide cells and use it.
Although the drilling machine A and the driving breaker machine B are used as attachments, they are not limited to these, and various attachments such as rock drilling machines, auger screws, and vibrator machines can be used.

3: elevation mechanism 4: cell mount 4a: one end 4b: other end 6: cell slide cylinder 7: rotation mechanism 11: outrigger 12: air compressor 31: first tilt cylinder 32: second tilt cylinder 51 : 1st guide cell (guide cell)
52: Second guide cell (guide cell)
55: Attachment mounting mechanism 71: Rotating shaft 72: Rotary bracket 72a: One side edge 72b: The other side edge 73: First rotary cylinder 74: Second rotary cylinder A: Drilling machine (attachment)
B: Breaker machine for driving (attachment)
CE: Construction machine V: Vehicle body V1: Undercarriage V2: Upper revolving body W: Working machine Y: Longitudinal direction X: Traveling direction R: Reinforcing column for construction

Claims (5)

A construction machine comprising a vehicle body and a working machine attached to the vehicle body,
The work machine includes a plurality of guide cells capable of connecting various construction attachments;
a cell mount that holds a plurality of the guide cells;
an elevating mechanism provided in the cell mount and elevating the guide cell with respect to the vehicle body;
a cell slide cylinder provided on the cell mount and for moving the guide cell in the longitudinal direction;
a rotation mechanism provided on the cell mount and rotating the guide cell about the axis extending in the longitudinal direction;
A construction machine comprising an attachment mounting mechanism for mounting the attachment on an end of the guide cell. The rotating mechanism is
a rotary bracket fixed to the cell mount;
a first rotary cylinder and a second rotary cylinder arranged on one side edge and the other side edge of the rotary bracket, respectively;
When one of the first rotary cylinder and the second rotary cylinder expands and the other contracts, the rotary bracket rotates about the rotation shaft and accompanies the rotation of the rotary bracket. 2. The construction machine according to claim 1, wherein said guide cell can be rotated by moving the guide cell. The elevation mechanism is
a first tilt cylinder connected to the cell mount and installed at one end of the cell mount and a second tilt cylinder installed at the other end;
2. The cell mount can be rotated to the lowered position or the raised position by extending one of the first tilt cylinder and the second tilt cylinder and contracting the other. Construction equipment as described. The construction machine according to any one of claims 1 to 3, wherein at least part of said attachment is pneumatically driven, and an air compressor is mounted on said vehicle body. The vehicle body includes an undercarriage, and an upper rotating body that is rotatably provided on an upper portion of the undercarriage,
The construction machine according to any one of claims 1 to 4, wherein the undercarriage is provided with outriggers for fixing the vehicle body.

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