JP2022082684A - Work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work vehicle which reduces fatigue of an operator, improves work efficiency, prevents danger, reduces damage of a camera, can acquire a wide visual field in the rear, and reduces a manufacturing cost.

SOLUTION: A work vehicle includes: an upper turning body turnably supported on a lower traveling body; a cabin that is placed from the front to the back of the upper turning body on one side of right and left side parts of the upper turning body; and an imaging part that is placed in the cabin, and in the rear central vicinity of the upper turning body in plan view.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a work vehicle provided with a rear view device.

Patent Document 1 describes a reflector in which an accommodating portion is formed in the rear front portion of a counter weight to bend the observation field of view in the accommodating portion as a mounting structure of a camera for monitoring the rear of the back ho, and an observation field of view reflected by the reflecting mirror. A camera for capturing an image is arranged, and a structure in which the accommodating portion is covered with a window portion made of a transparent material is disclosed.

Patent Document 2 discloses a structure in which a camera bracket for supporting a camera is fixed to the upper surface of a counterweight body as a mounting structure for a camera that monitors the rear of the backhoe.

Patent Document 3 discloses that a camera is installed on the outer surface of the cabin in order to generate a driving assistance image that is perspectively projected onto the wall and ceiling of the driver's seat.

Japanese Unexamined Patent Publication No. 2005-180065 Japanese Unexamined Patent Publication No. 2016-21244 Japanese Unexamined Patent Publication No. 2016-21253

However, in Patent Document 1, since the window portion that captures the observation field of view is arranged in the lower surface direction of the counterweight, there is little risk that the camera body will be damaged and soiled, but the observation field of view will be affected by the damage or dirt on the window portion. I can't get it. Since it is embedded in the counterweight and the installation height of the camera is low, it is not possible to obtain a wide field of view even if the rear end of the backhoe is included in the field of view. Further, the structure embedded in the counterweight makes it impossible to share the counterweight parts between the standard work vehicle without the camera and the optional work vehicle with the camera, which increases the manufacturing cost.

Further, in Patent Document 2, since the camera is attached to the upper part of the counterweight,
A wide field of view can be obtained by including the rear end of the backhoe in the field of view, and parts such as counterweights can be shared, so that the manufacturing cost does not increase. However, in the case of a small turning type small work vehicle in which the rear end of the bonnet that covers the engine rises from the counter weight and the rear wall of the cabin rises from the upper part of the bonnet, the bonnet door depends on how the bonnet door is opened. Can cause problems with the mounting position of the camera and its wiring.

Further, when working with a work vehicle, it is necessary for the operator to look back and check the rear-view mirror each time as necessary for safety confirmation at the time of operation. Therefore, in the work of frequently repeating forward / backward movement, the operator's fatigue burden is very large, and the work may be delayed due to the time lag of looking back / turning forward. Further, in order to confirm a wide field of view, the operator needs to look back at the left rear and the right rear alternately, and the fatigue burden is further increased. And in order to judge the danger in advance, it is very important to confirm the exact appearance and position of the object.

Further, in Patent Document 3, since it is necessary to install a plurality of cameras in order to generate a driving support image for perspective projection, the image taken by a single camera is not electronically processed.
It does not disclose the installation position of the camera that obtains a wide field of view while including the rear end of the small turning type small work vehicle in the field of view.

Further, in recent years, at civil engineering sites and construction sites, there is a movement to establish voluntary safety regulations not only for large work vehicles but also for small work vehicles. In small work vehicles, it is being proposed to provide a rear-view camera in order to further improve rear visibility, in addition to a structure in which a rear-view mirror is provided for rear-view safety confirmation and contact prevention. However, in the case of a small work vehicle, it is difficult to mount the back camera behind the backhoe because the cabin is mounted almost vertically from the wall surface of the backhoe.

In view of the above problems, the present invention is a work vehicle capable of reducing operator fatigue, improving work efficiency, excellent risk prevention, obtaining an image with a wide rear view with less damage, and being able to manufacture at low cost, especially small work. The purpose is to provide a vehicle.

The work vehicle of the present invention
An upper swivel body that is freely swivelly supported by the lower traveling body,
A cabin arranged from the front to the rear of the upper swivel body on one side of the left and right side portions of the upper swivel body,
It is configured to include an image pickup unit arranged in the cabin and arranged in the vicinity of the rear center of the upper swing body in a plan view.

In the above configuration, the imaging unit may be arranged behind the side surface side of the cabin.

In the above configuration, the side surface side of the cabin may be facing the other side of the left and right side portions of the upper swing body.

In the above configuration, the imaging unit may be installed in the frame of the cabin.

In the above configuration, the frame may be an upright frame.

Right rear side perspective view showing the work vehicle according to the first embodiment. Left rear side perspective view showing the work vehicle according to the first embodiment. A partially enlarged view of the periphery of the imaging unit of FIG. 1A. The perspective view which shows the arrangement structure of the cable which concerns on Embodiment 1. FIG. The perspective view which shows the arrangement structure of the cable which concerns on Embodiment 2. The perspective view which shows the arrangement structure of the cable which concerns on Embodiment 2.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. As an example of the work vehicle of the present embodiment, a rear small turning type mini excavator will be described. However, the work vehicle is not limited to the rear small turning type mini excavator, and may be another vehicle such as another backhoe or wheel loader.
In the figure, the vehicle traveling direction is indicated by "front" and "rear", the vehicle width direction is indicated by "left" and "right", and the vehicle height direction is indicated by "up" and "down". When indicating placement, "front" means "front" in the forward direction and "back"
Means after the forward direction. "Right" means the right in the width direction of the vehicle facing "front", and "left" means the left in the width direction of the vehicle facing "front".

1A and 1B are a right side perspective view and a left side side perspective view of the mini excavator 1, and a schematic configuration of the mini excavator 1 will be described. The mini excavator 1 includes a lower traveling body 2, a working machine 3, and an upper turning body 4.

The lower traveling body 2 is driven by receiving power from the engine 45 installed in the upper turning body 4, and causes the mini excavator 1 to travel. The lower traveling body 2 includes left and right crawlers 21L and 21R and a pair of left and right left and right traveling motors 22L and 22R. The left and right traveling motors 22L and 22R, which are hydraulic motors, drive the left and right crawlers 21L and 21R, respectively, to enable the mini excavator 1 to move forward and backward. Further, the lower traveling body 2 has a blade 23 in the reverse direction.
A blade cylinder 24, which is a hydraulic actuator for rotating the blade 23 in the vertical direction, is provided.

The work machine 3 is driven by receiving power from the engine 45 to perform excavation work such as earth and sand. The work machine 3 includes a boom 31, an arm 32, and a bucket 33, and by driving these independently, excavation work is possible.

The boom 31 is rotated by a boom cylinder 31a whose base end portion is rotatably supported in the front portion of the upper swivel body 4 in the vertical direction and which can be expanded and contracted. Further, the arm 32 is rotated by an arm cylinder 32a whose base end portion is supported by the tip end portion of the boom 31 and which can be expanded and contracted. Then, the bucket 33 is rotated by a bucket cylinder 33a whose base end portion is supported by the tip end portion of the arm 32 and which can be expanded and contracted. The boom cylinder 31a, the arm cylinder 32a, and the bucket cylinder 33a correspond to hydraulic actuators that drive the working unit. An articulated structure is formed by the boom 31 and the arm 32, and the boom 31 is arranged on the most proximal side among the elements constituting the articulated structure.

The upper swivel body 4 has a counterweight 41 located at the rear end thereof and a counterweight 4.
The rear bonnet 42 erected from 1 and the rear bonnet 4 on the left side of the upper swivel body 4
The cabin 43 is erected from the upper part of 2, the right side bonnet 44 arranged on the right side of the upper swivel body 4, the rear part of the upper swivel body 4, and surrounded by the rear bonnet 42 and the right side bonnet 44. It is equipped with an engine 45. The engine 45 is indicated by a broken line.
Further, the upper swivel body 4 includes a control unit 46, a swivel base 47, a swivel motor, and the like inside the cabin 43. The upper swivel body 4 swivels when the swivel motor, which is a hydraulic motor, drives the swivel base 47. Further, a plurality of hydraulic pumps (not shown) driven by the engine 45 are arranged on the upper swing body 4. These hydraulic pumps supply hydraulic oil to the boom cylinder 31a, the arm cylinder 32a, and the bucket cylinder 33a. Also, the hydraulic pump
Hydraulic oil is supplied to the swivel joint (not shown) of the lower traveling body 2, and the blade cylinder 24, the left traveling motor 22L, and the right traveling motor 22R connected to the swivel joint by each hydraulic hose are driven.

As shown in FIGS. 1A, 1B and 1C, the image pickup unit 5 is provided behind the cabin 43 and above the right side portion on the bonnet 44 side.
Examples of the image pickup unit 5 include a CCD camera and a CMOS camera. The image pickup unit 5
You can capture moving images and still capture still images.

In the first embodiment, the image pickup unit 5 is attached to a rear-view mirror mounting seat 6 attached by a fixing member, for example, a bolt 61, above the right rear standing frame 431 of the cabin 43, by a fixing member, for example, a bolt 62. .. In this embodiment, the rearview mirror is removed from the rearview mirror mounting seat 6. In the present embodiment, the rear-view mirror mounting seat 6 has a U-shape that opens downward in a front cross-sectional view. The imaging unit 5 is housed and fixed in the opening space. The image pickup unit 5 captures an image from above the right rear standing frame 431 toward the lower rear. The image pickup unit 5 is angle-adjusted and fixed so as to capture an image including all or part of the rear bonnet 42 and / or the counterweight 41.

Since the image pickup unit 5 is provided behind the center of the left and right sides of the mini excavator 1, it is possible to take a wide range of images of the left and right rear sides without being biased to either the left or right rear side. Further, as compared with the case where the image pickup unit 5 is directly attached to the right rear-standing frame 431, the rear-view mirror mounting seat 6 exerts a buffering function to absorb vibrations and shocks, and the failure of the image pickup unit 5 can be reduced. .. The image pickup unit 5 is not limited to the rearview mirror mounting seat 6, and the image pickup section 5 may be fixed to the right rear standing frame 431 directly or via a bracket.

The first cable 51 for sending images from the image pickup unit 5 is guided upward through the top through hole 63 of the rear-view mirror mounting seat 6, is hooked by the first clip 4311a, and the antenna mounting seat 81 to which the antenna 8 is mounted. It is guided to the inside of the cabin 43 through the through hole 82 in the vicinity of. The first clip 4311a is a support portion 431 attached to the right rear standing frame 431.
It is fixed at 1. The first cable 51 guided to the inside of the cabin 43 is the right rear standing frame 4.
It extends down along the inside of 31. The details of the cable arrangement structure will be described later.

[Measures Structure of Embodiment 1]
FIG. 2 shows the arrangement structure of the cable of the first embodiment. FIG. 2 shows the components necessary for explaining the cable arrangement structure, and omits other components.

A connector 52 is provided at the tip of the first cable 51, and the second cable 53 connected to the connector 52 extends downward along the inside of the right rear standing frame 431 and further inside the right front and rear frame 432. It extends from the rear right side to the front right side of the control unit 46 and is connected to the monitor 7.

The first cable 51 is protected by being covered with a long first cable cover 201 having a concave cross section inside the right rear standing frame 431. The first cable cover 201 can be fixed to the inner surface of the right rear standing frame 431 by any fixing means.

The second cable 53 connected to the connector 52 is covered with the long second and third cable covers 202 and 203 having a concave cross section in order from top to bottom inside the right rear standing frame 431, and the front and rear on the right side. Inside the frame 432, it is covered with the fourth and fifth cable covers 204 and 205 in order from the back to the front. The second and third cable covers 202 and 203 can be fixed to the inner surface of the right rear standing frame 431 by any fixing means. The fourth and fifth cable covers 204 and 205 can be fixed to the inner surface of the right front and rear frame 432 by any fixing means.

The second cable 53 is hooked between the second cable cover 202 and the third cable cover 203 by the second, third, and fourth clips 4312, 4313, and 4314 in this order from top to bottom. The fourth clip 4312 and 4314 are fixed to the inner side surface of the right rear standing frame 431, respectively, and the third clip 4313 is fixed to the cabin rear panel surface (not shown).

As shown in FIG. 2, a window cover portion 4321 is formed on the right front and rear frame 432.
The second cable 53 is arranged so as to avoid the window cover portion 4321. If it is not necessary to avoid the window cover 4321, a single cable cover may be used, fourth,
A plurality of fifth cable covers 204 and 205 may be used to cover the second cable 53.
The window cover portion 4321 is, for example, a member that covers the outside air introduction filter window of the air conditioner. The second cable 53 is arranged so as to avoid the window cover portion 4321, does not interfere with the opening and closing of the window of the outside air introduction filter formed on the right front and rear frame 432, and is excellent in maintainability.

Not limited to FIG. 2, the number of cable covers, the size of the concave cross section (cable storage size), and the long size can be set according to the arrangement route and the frame shape.

The monitor 7 is arranged on the front upper side of the machine operation panel 461 (indicated by a broken line) arranged on the right side of the center of the control unit 46 arranged in the cabin 43.
In the first embodiment, the monitor 7 is attached via a dedicated bracket 72 fixed to the cabin mounting seat 71 attached to the right front and rear frame 432 on the cabin 43 side.
The monitor 7 can display the moving image captured by the imaging unit 5.

[Modified Example 1]
Instead of using the second, third, and fourth clips 4312, 4313, 4314, another cable cover may be used, or in the right rear standing frame 431, with a single cable cover, the second cable 53. May be covered.
Further, in the right rear standing frame 431, the first, second, and third cable covers 201,
First cable 51, connector 52 with a single cable cover without using 202 and 203
, May be configured to cover the second cable 53.
Fixing means for fixing each clip or each cable cover to the frame include, for example, adhesives, screws, screws, bolts and the like.

[Measures Structure of Embodiment 2]
3A and 3B show the cable arrangement structure of the second embodiment. 3A and 3B show the components necessary to explain the cable arrangement structure, and omit other components.
In the second embodiment, the first cable 51 and the second cable 53 are fixed to the inner side surface of the frame with a plurality of clips, and the first and second panel covers 401 are matched to the frame shape from above.
It is a structure covered with 402.

Specifically, as in the first embodiment, the first cable 51 is guided upward through the top through hole 63 of the rearview mirror mounting seat 6, is hooked by the first clip 4311a, and is in the vicinity of the antenna mounting seat 81. It is guided to the inside of the cabin 43 through the through hole 82 of.

As shown in FIG. 3B, the first cable 51 is located inside the right rear standing frame 431.
It is hooked by the first inner clip 301, and the first inner clip 301 is the right rear standing frame 431.
It is fixed to the inner surface of.

Similar to the first embodiment, the connector 52 is provided at the tip of the first cable 51, and the second cable 53 connected to the connector 52 extends downward along the inside of the right rear standing frame 431. Further, it extends from the rear right side of the control unit 46 to the front right side along the inside of the right front and rear frame 432, and is connected to the monitor 7.

As shown in FIG. 3B, the second cable 53 is hooked by the second, third, and fourth internal clips 302, 303, and 304 in order from top to bottom, and the second, third, and fourth internal clips 302 are hooked. , 30
3, 304 are fixed to the inner side surface of the right rear standing frame 431.
Further, the second cable 53 has the third and fourth clips 4313 and 431 in this order from top to bottom.
Hooked at 4, the third clip 4313 is fixed to the cabin rear panel surface (not shown).
The fourth clip 4314 is fixed to the inner side surface of the right rear standing frame 431, respectively.
Further, the connectors 52 are provided at two locations in the vertical direction thereof (at both ends of the small diameter in this embodiment).
From the top, the fifth and sixth inner clips 305 and 306 are hooked, and the fifth and sixth inner clips 305 and 306 are fixed to the inner surface of the right rear standing frame 431.
The first to sixth internal clips 301 to 306 are provided with engaging projections 301a to 306a at their tips, which are penetrated through holes (not shown) of the first panel cover 401 to be detachably engaged with each other.

The second cable 53 is guided from the right rear standing frame 431 to the right front and rear frame 432, and is led to the right rear frame 432.
It is hooked by the 1st to 8th support clips 311 to 318, and the 1st to 8th support clips 311 to 3
18 is fixed to the inner lower surface of the right front and rear frame 432.
The first to eighth support clips 311 to 318 have first to eighth support grooves 311a to 318a into which the lower edge portion 4023 of the second panel cover 402, which will be described later, is detachably inserted.
The first to seventh support clips 311 to 317 are fixed to the lower part of the right front and rear frame 432 so that the first to seventh support grooves 311a to 317a face leftward, and the eighth support clip 318 is the right front and rear frame 432. At the intermediate position of the height of, the eighth support groove 318a is fixed so as to face diagonally upward.

A window cover portion 4321 is formed between the fourth support clip 314 and the fifth support clip 315, and a protective wall 4326 is erected from the right front and rear frame 432 surfaces so as to avoid this, and the second cable. 53 is guided from the rear to the front along the protective wall 4326.
The window cover portion 4321 is, for example, a member that covers the outside air introduction filter window of the air conditioner. The second cable 53 is arranged so as to avoid the window cover portion 4321, does not interfere with the opening and closing of the window of the outside air introduction filter formed on the right front and rear frame 432, and is excellent in maintainability.

In FIG. 3A, the first and second panel covers 401 and 402 are provided.
The first panel cover 401, which is concave in cross section, has four through holes at positions corresponding to the engagement protrusions 301a to 304a of the first to fourth internal clips 301 to 304, and the engagement protrusions 301a are provided in these through holes. ~ 304a is inserted and engaged and fixed. With this configuration, the first panel cover 401 covers the first cable 51, the connector 52, and the second cable 53, and is attached to the right rear standing frame 431.

The second panel cover 402 has a hooking portion 4021 that abuts on the top surface 4321 of the right front and rear frame 432 and is hooked, a main surface 4022 that extends downward in an L shape from the hooking portion 4021, and a main surface 4022. It has a lower edge portion 4023 extending to the right in an L shape in the same direction as the hooking portion 4021.
The main surface 4022 has an opening 4022a formed between the fourth support clip 314 and the fifth support clip 315. The window of the outside air introduction filter can be opened and closed from the opening 4022a.

In the second panel cover 402, four through support portions 4025 are erected in the longitudinal direction thereof on the main surface 4022. The penetration support portion 4025 is shown by a broken line. A screw (not shown) may be inserted into the penetration support portion 4025. The number of penetration support portions 4025 of the second panel cover 402 is not limited to four, and may be at least two or more. Top surface 4 of penetration support portion 4025
025a abuts on the inner side surface 4322 of the right front and rear frame 432. Penetration support 4025
Supports, together with the first to seventh support clips 311 to 317, to maintain the internal space of the second panel cover 402.

The hooking portion 4021 of the second panel cover 402 is a top surface 4321 of the right front and rear frame 432.
The lower edge portion 4023 of the second panel cover 402 is fitted into the support grooves 311a to 318a of the first to eighth support clips 311 to 318.
As a result, the second panel cover 402 covers the second cable 53 and is attached to the right front / rear frame 432.

[Modified Example of Embodiment 2]
The first panel cover 401 was fixed with the first to fourth internal clips 301 to 304,
Not limited to this, it may be fixed by other fixing means.
Further, the third and fourth clips 4313 and 4314 may be omitted.
The second panel cover 402 is fixed by the first to eighth support grooves 311a to 318a, but is not limited to this, and may be fixed by other fixing means.
The right front and rear frame 432 has one or more hollow cylindrical portions, and the second panel cover 4
02 may have a protrusion that is detachably inserted and engaged with the hollow cylindrical portion.
Fixing means for fixing each clip or each panel cover to the frame include, for example, adhesives, screws, screws, bolts and the like.

[Another Embodiment]
Although the present embodiments 1 and 2 have been described with reference to the drawings, the specific configuration is not limited to these embodiments. The present embodiments 1 and 2 are shown not only by the description of the above-described embodiment but also by the scope of claims, and further include all modifications within the meaning and scope equivalent to the scope of claims.

Instead of using the first click 4311a, the first cable 51 may be covered with a cable cover extending along the right rear standing frame 431.
The image pickup unit 5 may be attached to a wall panel between the left and right vertical frames of the cabin 43, or may be attached to a ceiling column (ceiling frame) of the cabin 43.
Further, the number of image pickup units 5 is not limited to one, and a plurality of image pickup units 5 may be provided or may be provided at different positions in the cabin.

[Additional Notes]
As described above, the work vehicle according to the embodiment of the present invention is a work vehicle having an upper swivel body and a lower traveling body that rotatably supports the upper swivel body.
The counterweight located at the rear end of the upper swivel body,
The rear bonnet erected from the counterweight and
A cabin that stands on either side of the left and right sides of the upper swivel body and that stands up from the upper part of the rear bonnet.
A side bonnet arranged on the other side of the left and right sides of the upper swing body, and
An engine located at the rear of the upper swing body and surrounded by the rear bonnet and / or the side bonnet.
The configuration may include an imaging unit located behind the cabin and above the side bonnet side.

The work vehicle having the above configuration may be a so-called rear small turning type work vehicle, for example, a mini excavator.
Further, the work vehicle having the above configuration has a vibration-proof structure in which the cabin is vibration-proof supported and erected in the upper swing body, and / or the cabin is vibration-proofed and erected from the upper part of the rear bonnet. It may have a vibration-proof structure. The anti-vibration structure may be a structure in which the cabin is installed above the frame and / or the rear bonnet of the upper swing body via an anti-vibration member such as an elastic member.

Further, in the above configuration, the image pickup unit may be mounted on a rear-view mirror mounting seat installed at the upper part behind the cabin.
As a result, the image pickup unit can be mounted on the rear-view mirror mounting seat installed in the standard product.
It is not necessary to separately manufacture the cabin of a standard work vehicle and the cabin of a work vehicle equipped with an image pickup unit for rearward visual recognition, so that the manufacturing cost can be suppressed.

Further, in the above configuration, the work vehicle may further include a display device for displaying an image taken by the image pickup unit.
The display device is located on one of the left and right sides of the upper swing body (left side or right side), and the other side of the left and right sides of the control unit arranged inside the cabin. It may be arranged on the front upper side of the operation panel of the machine arranged on (right side or left side).
The display device may be mounted via a dedicated bracket fixed to a cabin mounting seat mounted on an arbitrary frame on the cabin side.
This does not obstruct the display on the operation panel of the machine or the view of the lower right (or lower left of the cabin) of the cabin, so the tip of the right (or left) crawler can be visually confirmed, which is effective in preventing danger. ..

Further, in the above configuration, the work vehicle may further include a wired cable connecting the image pickup unit and the display device.
The cable is a frame of the cabin arranged on either one side (left side or right side) of the left and right side portions of the upper swing body, and is the other side portion of the left and right side portions from the center of the work vehicle. It may be arranged along the frame (right side or left side).
The cable of the image pickup unit may be introduced from the vicinity of the antenna mounting (for example, the vicinity of the antenna mounting seat) to the inside of the cabin.
As a result, since there are no moving parts such as opening / closing doors such as the side bonnet or the rear bonnet in the cable arrangement route, short circuits and disconnections due to repeated bending of the cable are unlikely to occur.
Also, cables can be arranged along the inside or outside of the frame such as the cabin, so
The length of the cable can be minimized, and the manufacturing cost of the cable can be suppressed.

The cable may be arranged along the frame of the cabin and at least partially covered with a protective member.
Examples of the protective member include a clip, a long cable cover having a concave cross section, and a panel cover matching the frame shape.
The protective member may have a fixing means or a detachable means for fixing the protective member to the frame.
As a result, the cable can be arranged along the frame of the cabin, and the cable can be protected by a protective member, so that it can withstand harsh use for a long period of time.

According to the above configuration, a wide field of view including the rear end portion such as the rear bonnet can be obtained. Further, since the mounting position of the image pickup unit of the cabin can be located near the center of the vehicle body of the work vehicle, an image with less discomfort can be obtained from the image pickup unit. Therefore, it is effective in reducing operator fatigue, improving work efficiency, and preventing danger.
Further, since the cabin erected on the upper swing body is supported by vibration isolation, for example, it is difficult to transmit the vibration or impact transmitted from the work vehicle side to the image pickup unit.
In addition, since the image displayed on the display device can be confirmed only by moving the line of sight of the operator, the operator's fatigue burden is very small even in the work of frequently repeating forward and backward movements, and the operator looks back or turns forward. There is no delay in work due to time lag such as. Further, in order to confirm a wide range, the operator does not have to look back at the left and right sides alternately, and the fatigue burden is further reduced. In addition, it becomes easier to recognize the exact figure and position of the object for judging the danger.

1 Mini excavator 2 Lower swivel body 201 1st cable cover 203 2nd cable cover 204 3rd cable cover 205 4th cable cover 205 5th cable cover 3 Working machine 4 Upper swivel body 41 Counter weight 42 Rear bonnet 43 Cabin 401 1st Panel cover 402 Second panel cover 431 Right rear standing frame 432 Right front and rear frame 44 Right front and rear frame 44 Right side bonnet 45 Engine 46 Control unit 461 Machine operation panel 5 Image pickup part 51 First cable 52 Connector 53 Second cable 6 Rearview mirror mounting seat 7 Monitor 71 Cabin mounting seat 72 Dedicated bracket 8 Antenna 81 Antenna mounting seat 82 Through hole

Claims (5)

An upper swivel body that is freely swivelly supported by the lower traveling body,
A cabin arranged from the front to the rear of the upper swivel body on one side of the left and right side portions of the upper swivel body,
An imaging unit arranged in the cabin and located near the rear center of the upper swing body in a plan view, and an imaging unit.
A work vehicle. The work vehicle according to claim 1, wherein the image pickup unit is arranged behind the side surface side of the cabin. The work vehicle according to claim 2, wherein the side surface side of the cabin faces the other side of the left and right side portions of the upper swing body. The work vehicle according to any one of claims 1 to 3, wherein the imaging unit is installed in the frame of the cabin. The work vehicle according to claim 4, wherein the frame is an upright frame.

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