Work machine

Abstract

The machine room exterior (9) covers the machine room (MR). The detector (DT) detects external information of the hydraulic shovel (100). The machine room exterior (9) has a cover member (9c) extending in the front-rear direction above the machine room exterior (9). The detector (DT) has a portion located on the machine chamber (MR) side with respect to the cover member (9c).

Description

Technical Field

[0001] The present disclosure relates to a work machine. Background Art

[0002] In recent years, work machines such as hydraulic excavators have been equipped with cameras to enable visual recognition of their surroundings during operation. Examples of work machine camera configurations include those disclosed in Japanese Patent Application Publication No. 2008-150832 (Patent Document 1) and Japanese Patent Application Publication No. 2017-89139 (Patent Document 2).

[0003] In Japanese Patent Application Laid-Open No. 2008-150832, a rear monitoring camera and a housing supporting the rear monitoring camera are arranged on a counterweight. In Japanese Patent Application Laid-Open No. 2017-89139, a camera is arranged on an upper rotating body.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2008-150832

[0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2017-89139 Summary of the Invention

[0008] Problems to be solved by the invention

[0009] In each of the two publications, a detector for detecting external information of the working machine, such as a camera, is disposed protruding from the counterweight or the upper slewing body. Therefore, the detector may interfere with an obstacle and be damaged during operation of the working machine.

[0010] An object of the present disclosure is to provide a working machine capable of suppressing damage to a detector.

[0011] Means for solving problems

[0012] The work machine disclosed herein is a work machine having a machine compartment, and includes a machine compartment exterior and a detector. The machine compartment exterior covers the machine compartment. The detector detects external information of the work machine. The machine compartment exterior includes a cover member extending in the front-to-rear direction from an upper portion of the machine compartment exterior. The detector has a portion located on the machine compartment side relative to the cover member.

[0013] Effects of the Invention

[0014] According to the present disclosure, it is possible to realize a working machine capable of suppressing damage to a detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a side view showing the structure of a hydraulic excavator in one embodiment of the present disclosure.

[0016] Figure 2 yes Figure 1 Top view of a part of a hydraulic excavator.

[0017] Figure 3 It is along Figure 2 A schematic cross-sectional view taken along line III-III.

[0018] Figure 4 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where a camera is installed, viewed from the outside of the hydraulic excavator.

[0019] Figure 5 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where an imaging device is installed, viewed from the inside of the hydraulic excavator.

[0020] Figure 6 Yes Figure 1 A cross-sectional view of a portion of a hydraulic excavator where a camera is installed.

[0021] Figure 7 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where an antenna is provided, viewed from the outside of the hydraulic excavator.

[0022] Figure 8 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where an antenna is disposed, viewed from the inside of the hydraulic excavator.

[0023] Figure 9 Yes Figure 1 A cross-sectional view of a portion of a hydraulic excavator where an antenna is installed. DETAILED DESCRIPTION

[0024] Hereinafter, embodiments of the present disclosure will be described based on the drawings.

[0025] In the specification and drawings, identical or corresponding structural elements are denoted by the same reference numerals, and repeated descriptions are omitted. In addition, in the drawings, structures are sometimes omitted or simplified for ease of description. In addition, at least a portion of the embodiment and each modified example may be arbitrarily combined with each other.

[0026] In addition to hydraulic excavators, the present disclosure can also be applied to other working machines such as wheel loaders, bulldozers, and motor graders. In the following description, "up", "down", "front", "back", "left", and "right" are based on the position of the person sitting on the wheelchair. Figure 1The direction shown is based on the operator at the driver's seat 4S in the cab 4 .

[0027] <Structure of operating machinery>

[0028] First, as an example of a working machine of this embodiment, Figure 1 The structure of a hydraulic excavator will be described.

[0029] Figure 1 1 is a side view schematically showing the structure of a hydraulic excavator in one embodiment of the present disclosure. Figure 1 As shown, the hydraulic excavator 100 includes a main body 1 and a work device 2 that operates hydraulically. The main body 1 includes a revolving body 3 and a traveling body 5. The traveling body 5 includes crawler tracks 5Cr and a traveling motor 5M. The hydraulic excavator 100 can travel by rotating the crawler tracks 5Cr. The traveling motor 5M is provided as a drive source for the traveling body 5. The traveling motor 5M is a hydraulic motor that operates hydraulically. It should be noted that the traveling body 5 may also include wheels (tires).

[0030] The revolving structure 3 is arranged on and supported by the traveling structure 5. The revolving structure 3 is capable of rotating relative to the traveling structure 5 about a rotation axis RX. The revolving structure 3 includes a cab 4 (cab). A driver's seat 4S is provided within the cab 4 for the operator. The operator (passenger) rides in the cab 4 and can operate the work implement 2, rotate the revolving structure 3 relative to the traveling structure 5, and travel the hydraulic excavator 100 on the traveling structure 5.

[0031] The rotating body 3 includes a machine room exterior 9 and a counterweight CW located at the rear of the rotating body 3. The machine room exterior 9 covers the machine room. The machine room houses an engine unit (engine, exhaust treatment structure, etc.) or a battery unit (battery, motor, inverter, etc.). If a battery unit is located in the machine room, the counterweight CW can be omitted. In this case, the battery unit serves as a counterweight.

[0032] The working machine 2 is supported by the revolving unit 3. The working machine 2 includes a boom 6, an arm 7, and a bucket 8. The working machine 2 also includes a boom cylinder 10, an arm cylinder 11, and a bucket cylinder 12.

[0033] The boom 6 is rotatably connected to the main body 1 (the traveling structure 5 and the revolving structure 3 ). Specifically, the base end of the boom 6 is rotatably connected to the revolving structure 3 with a boom base pin (not shown) serving as a fulcrum.

[0034] The boom 7 is rotatably connected to the boom 6. Specifically, the base end of the boom 7 is rotatably connected to the front end of the boom 6 with the boom top pin 14 as a fulcrum. The bucket 8 is rotatably connected to the boom 7. Specifically, the base end of the bucket 8 is rotatably connected to the front end of the boom 7 with the boom top pin 15 as a fulcrum.

[0035] One end of the boom cylinder 10 is connected to the revolving body 3, and the other end is connected to the boom 6. The boom 6 can be driven relative to the main body 1 by the boom cylinder 10. This drive allows the boom 6 to rotate vertically relative to the revolving body 3 with the boom base pin as a fulcrum.

[0036] One end of the arm cylinder 11 is connected to the boom 6, and the other end is connected to the arm 7. The arm 7 can be driven relative to the boom 6 by the arm cylinder 11. With this drive, the arm 7 can rotate relative to the boom 6 in the vertical direction or the front-rear direction with the boom top pin 14 as a fulcrum.

[0037] One end of the bucket cylinder 12 is connected to the arm 7, and the other end is connected to the bucket link 17. The bucket 8 can be driven relative to the arm 7 by the bucket cylinder 12. With this drive, the bucket 8 can rotate relative to the arm 7 in the vertical direction with the arm top pin 15 as a fulcrum.

[0038] The machine room exterior 9 includes side panels 9S, a cover member 9c, and a cover portion 9d. The side panels 9S are located on the side surfaces of the rotating structure 3. The side panels 9S form the side surfaces of the machine room exterior 9 and cover the sides of the machine room. The side panels 9S include a door 9a and a side panel 9b.

[0039] The door 9a is located on a side surface of the revolving structure 3. For example, the door 9a is located next to the counterweight CW. The door 9a can open and close the machine room. The door 9a is provided with a plurality of air intake and exhaust holes VE. The plurality of air intake and exhaust holes VE connect the machine room to the outside of the hydraulic excavator 100.

[0040] Side panels 9b are positioned on the sides of the revolving structure 3, between the door 9a and the operator's cab 4. Side panels 9b and door 9a are aligned in the front-to-back direction. Side panels 9b are positioned in front of door 9a. Cover 9d forms the top panel of the engine room exterior 9. Cover 9d covers the upper portion of the engine room. The upper surface of cover 9d can be flat overall or have a flat portion.

[0041] The cover member 9c is disposed at the corner between the side panel 9s and the cover portion 9d of the machine room exterior 9. The cover member 9c is disposed at the left-right end of the machine room exterior 9. The cover member 9c is disposed on the upper portion of the machine room exterior 9, extending in the front-to-back direction. The cover member 9c is disposed above both the door 9a and the side panel 9b. The cover member 9c is disposed between the cab 4 and the counterweight CW. The cover member 9c extends in the front-to-back direction from the rear end of the cab 4 to the front end of the counterweight CW.

[0042] The cover member 9c can also serve as an armrest. Specifically, an armrest (not shown) can be attached to the cover member 9c. The armrest is a portion for a worker to hold while standing on the upper surface of the machine room exterior 9. A seat (not shown) can also be attached to the cover member 9c, with the armrest attached to the seat.

[0043] The hydraulic excavator 100 includes a detector DT. The detector DT detects external information of the hydraulic excavator 100. The detector DT is, for example, the camera 21 or the antenna 31. The detector DT may also be a radar, a LiDAR (Light Detection and Ranging), an ultrasonic sensor, or the like. The detector DT may be composed of the camera 21, the antenna 31, the radar, the LiDAR, or the ultrasonic sensor individually, or may include any combination thereof. The external information of the hydraulic excavator 100 may be an image of an object located outside the hydraulic excavator 100, the distance to the object, the nature of the object, or the like, or may be a signal transmitted from outside the hydraulic excavator 100.

[0044] The imaging device 21 captures the exterior of the hydraulic excavator 100. The imaging device 21 is, for example, a camera. The imaging device 21 is, for example, disposed on the side of the revolving structure 3. The imaging device 21 may also be disposed on the rear surface, front surface, or top surface of the revolving structure 3.

[0045] The antenna 31 wirelessly receives information from outside the hydraulic excavator 100 . The antenna 31 is, for example, a GNSS (Global Navigation Satellite System) antenna. The antenna 31 is, for example, disposed on the upper surface of the revolving structure 3 . The antenna 31 may also be disposed on the rear surface, front surface, or side surface of the revolving structure 3 .

[0046] The hydraulic excavator 100 may include electrical components such as a lighting device. The lighting device illuminates the sides, front, and rear of the hydraulic excavator 100. The lighting device includes at least one of an LED (Light-Emitting Diode), a fluorescent lamp, and an incandescent lamp.

[0047] The detector DT and the electrical components are each mounted on the main body 1 of the hydraulic excavator 100. The detector DT and the electrical components are each mounted on, for example, the revolving body 3. The detector DT and the electrical components each have a portion covered by the machine room exterior 9.

[0048] <Configuration of Detector DT>

[0049] Next, use Figure 2 and Figure 3 The arrangement of the detection device DT of the hydraulic excavator 100 in this embodiment will be described.

[0050] Figure 2 yes Figure 1 Top view of a part of a hydraulic excavator. Figure 3 It is along Figure 2 A schematic cross-sectional view taken along line III-III.

[0051] like Figure 2 As shown, multiple detectors DT may be arranged on the rotating body 3. The multiple detectors DT may also include multiple cameras 21 and multiple antennas 31. The multiple cameras 21 may also include a camera 21 arranged on one side of the rotating body 3 and a camera 21 arranged on the other side of the rotating body 3. The two cameras 21 are arranged on opposite sides of the left-right center MCL (double-dotted chain line) of the hydraulic excavator 100. That is, one camera 21 is arranged on one side relative to the center MCL, and the other camera 21 is arranged on the other side opposite to the one camera 21 relative to the center MCL.

[0052] In a plan view, the imaging device 21 arranged on one side surface and the imaging device 21 arranged on the other side surface are not arranged at line-symmetrical positions with respect to the center MCL, but may be arranged at line-symmetrical positions with respect to the center MCL.

[0053] The plurality of antennas 31 may include an antenna 31 disposed on one side of the rotating unit 3 and an antenna 31 disposed on the other side of the rotating unit 3. The two antennas 31 are disposed on opposite sides of the left-right center MCL of the hydraulic excavator 100. That is, one antenna 31 is disposed on one side of the rotating unit 3, and the other antenna 31 is disposed on the other side of the rotating unit 3 opposite to the center MCL.

[0054] In a plan view, the antenna 31 arranged on one side surface and the antenna 31 arranged on the other side surface are not arranged at line-symmetrical positions with respect to the center MCL, but may be arranged at line-symmetrical positions.

[0055] A plan view refers to a viewpoint when looking downward from above in a direction perpendicular to the flat portion of the cover 9 d in the machine room exterior 9 .

[0056] like Figure 3 As shown, the machine room exterior 9 covers the left and right sides and the top of the machine room MR. The machine room exterior 9 can also cover the front and rear of the machine room MR. The space covered by the machine room exterior 9 becomes the machine room MR. The drive unit DU, cooling unit 42, and other components are located in the machine room MR.

[0057] The drive unit DU may be an engine unit (engine, exhaust gas treatment structure, etc.) or a battery unit (battery, etc.). The cooling unit 42 includes a heat exchanger 42a such as an oil cooler and a radiator, and a fan 42b.

[0058] like Figure 2 and Figure 3 As shown, the plurality of detectors DT are arranged on the machine room MR side relative to the cover member 9c. The machine room MR side relative to the cover member 9c means that the detectors DT are arranged inside the machine room MR or outside the machine room MR but closer to the machine room MR than the cover member 9c.

[0059] The plurality of detectors DT are respectively provided through the through holes OP1 and OP2 ( Figure 4 、 Figure 8 ) is exposed to the outside of the cover member 9c. The outside of the cover member 9c refers to the space on the side opposite to the machine room MR relative to the cover member 9c. The outside of the cover member 9c is the space outside the machine room MR. In addition, the outside of the cover member 9c is the space outside the hydraulic excavator 100.

[0060] The plurality of detectors DT are each exposed to the outside of the cover member 9c, thereby enabling detection of information external to the hydraulic excavator 100. If the detector DT is an imaging device 21, the imaging device 21 is exposed to the outside of the cover member 9c and is thereby capable of imaging an object external to the hydraulic excavator 100. If the detector DT is an antenna 31, the antenna 31 is exposed to the outside of the cover member 9c and is thereby capable of receiving signals transmitted from outside the hydraulic excavator 100. If the detector DT is a radar, LiDAR, ultrasonic sensor, or the like, the detector DT is exposed to the outside of the cover member 9c and is thereby capable of detecting an image of an object external to the hydraulic excavator 100, the distance to the object, the nature of the object, and the like.

[0061] like Figure 3 As shown in FIG, the detector DT has a portion disposed on the machine room MR side relative to the cover member 9c in a cross-sectional view. The portion of the detector DT disposed on the machine room MR side relative to the cover member 9c is a housing portion of the detector DT.

[0062] When the detector DT is, for example, the imaging device 21, at least a portion of the housing housing the optical system, imaging element, etc. is positioned on the machine room MR side relative to the cover member 9c. When the detector DT is, for example, the antenna 31, at least a portion of the housing housing the antenna receiving unit, circuit board, etc. is positioned on the machine room MR side relative to the cover member 9c. When the detector DT is, for example, a radar, LiDAR, or ultrasonic sensor, at least a portion of the housing housing the irradiation unit (radio waves, light, ultrasonic waves, etc.) and the measurement unit (measurement unit for scattered radio waves, light, ultrasonic waves, etc.) is positioned on the machine room MR side relative to the cover member 9c.

[0063] Assuming that the detector DT does not have a portion configured in the machine room MR but has a portion configured in a space separated from the machine room MR, the detector DT has a portion located closer to the machine room MR than the cover member 9c. In the case where the detector DT is the imaging device 21 and has a portion configured in a space separated from the machine room MR, at least a portion of the housing portion of the imaging device 21 is located closer to the machine room MR than the cover member 9c. In addition, in the case where the detector DT is the antenna 31 and has a portion configured in a space separated from the machine room MR, at least a portion of the housing portion of the antenna 31 is located closer to the machine room MR than the cover member 9c. In addition, in the case where the detector DT is, for example, a radar, a LiDAR, or an ultrasonic sensor and has a portion configured in a space separated from the machine room MR, at least a portion of the housing portion of the imaging device 21 is located closer to the machine room MR than the cover member 9c.

[0064] The connection portion between the housing of the imaging device 21 and the wiring WR1, and the connection portion between the housing of the antenna 31 and the wiring WR2, are each positioned on the machine room MR side relative to the cover member 9c. The connection portion between the housing of the imaging device 21 and the wiring WR1, and the connection portion between the housing of the antenna 31 and the wiring WR2, are each located within the space surrounded by the machine room exterior 9 (inside the machine room MR or in a space separated from the machine room MR).

[0065] Furthermore, the wirings WR1 and WR2 are also arranged on the machine room MR side with respect to the cover member 9 c . The wirings WR1 and WR2 are located in a space surrounded by the machine room exterior 9 (inside the machine room MR or in a space separated from the machine room MR).

[0066] Furthermore, when electrical components such as lighting devices are installed, they may be installed on the machine room MR side relative to the cover member 9 c. These electrical components may also be located in the space surrounded by the machine room exterior 9 (inside the machine room MR or in a space separated from the machine room MR).

[0067] <Specific Structure and Arrangement of the Imaging Device 21>

[0068] Next, use Figures 4 to 6 The specific structure and arrangement of the imaging device 21 in this embodiment will be described.

[0069] Figure 4 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where a camera is installed, viewed from the outside of the hydraulic excavator. Figure 5 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where an imaging device is installed, viewed from the inside of the hydraulic excavator. Figure 6 It means in Figure 1 A cross-sectional view of a portion of a hydraulic excavator where a camera is installed.

[0070] like Figure 4 As shown in FIG. 1 , the cover member 9c is provided with a through-hole OP1. A portion of the imaging device 21 is inserted into the through-hole OP1. Specifically, a portion of the housing 21b of the imaging device 21 is inserted into the through-hole OP1.

[0071] The imaging device 21 includes an imaging element, an optical system, and a housing 21b. The imaging element and the optical system are respectively housed inside the housing 21b. The imaging element photoelectrically converts the brightness and darkness of light into an electrical quantity. The imaging element is, for example, an image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) sensor or a CCD (Charge Coupled Device) sensor. The optical system includes a lens, a reflector, etc., which forms an image of the subject on the imaging element. The optical system includes a lens 21a exposed to the outside of the housing 21b. The imaging device 21 may also include a cover. The cover of the imaging device 21 is, for example, a lens protection cover for protecting the lens 21a, and is composed of a transparent member.

[0072] like Figure 5 As shown, the housing 21b of the imaging device 21 is attached to the frame 41 via the support 22. The support 22 is fixed to the housing 21b. The support 22 is attached to the frame 41 via a fixing member 23. The fixing member 23 is, for example, a bolt.

[0073] A portion of the housing portion 21b and the support 22 are disposed on the machine room MR side relative to the cover member 9c. The cover member 9c may be attached to the frame 41 by bolts or the like.

[0074] like Figure 6As shown, the cover member 9c has a first inclined portion US and a second inclined portion LS. The first inclined portion US is inclined so as to protrude toward the outside (e.g., the side) of the hydraulic excavator 100 as it moves from top to bottom. The second inclined portion LS is located below the first inclined portion US. The second inclined portion LS is inclined so as to protrude toward the outside (e.g., the side) of the hydraulic excavator 100 as it moves from bottom to top. The lower end of the first inclined portion US and the upper end of the second inclined portion LS are connected to each other. The connection between the first inclined portion US and the second inclined portion LS forms a convex corner portion that protrudes from the machine room MR.

[0075] The through hole OP1 of the cover member 9c is provided in the second inclined portion LS. The through hole OP1 extends from the upper end of the second inclined portion LS to slightly above the lower end of the second inclined portion LS. The housing portion 21b of the camera 21 passes through the through hole OP1 and is located on both the machine room MR side and the opposite side relative to the cover member 9c. The lens 21a of the camera 21 is located on the side opposite to the machine room MR side relative to the cover member 9c. The lens 21a protrudes toward the outside (laterally) of the hydraulic excavator 100 beyond the second inclined portion LS. The optical axis OA of the camera 21 extends from the lens 21a, for example, obliquely downward. The lens 21a is exposed to the outside of the cover member 9c through the through hole OP1. In addition, when the camera 21 has the above-mentioned cover, the lens 21a and at least one component of the cover can be exposed to the outside of the cover member 9c through the through hole OP1. For example, when the imaging element, the optical system, and the cover are supported by the housing portion 21 b in this order, only the cover may be exposed to the outside of the cover member 9 c through the through-hole OP1 .

[0076] The outermost end position P1 of the cover member 9c in the left-right direction is located further inward of the main body 1 (rotating body 3) in the left-right direction than the outermost end position P2 of the door 9a in the left-right direction. In other words, the outermost end position P1 of the cover member 9c is located closer to the machine room MR than the outermost end position P2 of the door 9a in the left-right direction.

[0077] It should be noted that the dotted line representing position P2 is Figure 6 The portion shown is connected to the outermost end of the door 9a in the left-right direction at the lower part.

[0078] <Structure and Arrangement of Antenna 31>

[0079] Next, use Figures 7 to 9 The specific structure and arrangement of the antenna 31 in this embodiment will be described.

[0080] Figure 7 It will Figure 1 A perspective view showing an enlarged view of a portion of a hydraulic excavator where an antenna is provided, viewed from the outside of the hydraulic excavator. Figure 8 It will Figure 1A perspective view showing an enlarged view of a portion of a hydraulic excavator where an antenna is disposed, viewed from the inside of the hydraulic excavator. Figure 9 It means in Figure 1 A cross-sectional view of a portion of a hydraulic excavator where an antenna is installed.

[0081] like Figure 7 and Figure 8 As shown, antenna 31 includes an upper housing 31a and a lower housing 31b. Lower housing 31b is mounted below upper housing 31a. Upper housing 31a and lower housing 31b form the housing portion of antenna 31. The antenna receiving unit, circuit board, and other components are located within the interior space enclosed by upper housing 31a and lower housing 31b.

[0082] like Figure 7 As shown in FIG. 1 , the upper housing 31a of the antenna 31 is arranged outside the machine room MR. Specifically, the upper housing 31a is located above the top plate 9cu of the cover member 9c.

[0083] like Figure 8 As shown, the cover member 9c is provided with a through-hole OP2. Through-hole OP2 is provided in the top plate portion 9cu of the cover member 9c. The lower housing 31b of the antenna 31 is inserted into the through-hole OP2 and protrudes from the cover member 9c toward the machine room MR. The lower housing 31b can protrude toward the machine room MR through the through-hole OP2 or into a space separate from the machine room MR.

[0084] The lower case 31b is provided with a fixing portion 31c and a terminal portion 31d. The fixing portion 31c has an internal thread portion and is fixed to the support portion 9cf fixed to the bottom surface of the top plate portion 9cu by a fixing member 33 such as a bolt.

[0085] The terminal portion 31d is electrically connected to the antenna receiving portion of the antenna 31. The terminal portion 31d is used to connect the wiring WR2 ( Figure 3 By connecting the wiring WR2 to the terminal portion 31d, a signal received by the antenna receiving portion can be taken out from the antenna 31 through the wiring WR2.

[0086] The lower case 31b, the fixing portion 31c, and the terminal portion 31d are located on the machine room MR side relative to the cover member 9c. The lower case 31b, the fixing portion 31c, and the terminal portion 31d may be disposed in the machine room MR or in a space separated from the machine room MR.

[0087] like Figure 9 As shown, the top plate portion 9cu of the cover member 9c has a mounting area RA for mounting the antenna 31. The mounting area RA is a region that overlaps with the upper case 31a of the antenna 31 in a plan view. In the mounting area RA, the top surface of the top plate portion 9cu is flat.

[0088] Effects

[0089] Next, the effects of this embodiment will be described.

[0090] In this embodiment, if Figure 3 As shown, the detector DT has a portion located on the machine room MR side relative to the cover member 9c. This can reduce the size of the detector DT protruding from the machine room exterior 9. Therefore, it is possible to prevent the detector DT from interfering with obstacles and being damaged.

[0091] Furthermore, the configuration in which the detector DT is disposed on the machine room MR side relative to the cover member 9 c allows easy application to other models (for example, higher-level models) of the hydraulic excavator 100 using the same cover member 9 c .

[0092] In addition, in this embodiment, Figure 6 As shown, the lens 21a of the camera 21 and at least one component of the cover are exposed to the exterior of the cover member 9c through a through-hole OP1 provided in the second inclined portion LS. Furthermore, the second inclined portion LS is inclined so as to protrude toward the exterior of the hydraulic excavator 100 as it moves upward from the bottom. Therefore, moisture flowing along the outer surface of the cover member 9c due to rain or other factors is less likely to enter the interior of the cover member 9c (toward the machine compartment MR) through the through-hole OP1, making it less likely that the camera 21 will become wet.

[0093] The second inclined portion LS is inclined so as to protrude toward the outside of the hydraulic excavator 100 as it moves upward. Therefore, when the optical axis OA of the imaging device 21 extends obliquely downward from the lens 21a or the cover, the second inclined portion LS is prevented from obstructing the imaging range of the imaging device 21.

[0094] Furthermore, the connection between the first inclined portion US and the second inclined portion LS of the cover member 9c protrudes above the imaging device 21 toward the outside of the hydraulic excavator 100, thereby functioning like a canopy. Therefore, the portion of the imaging device 21 that protrudes outward from the cover member 9c through the through-hole OP1 is less likely to get wet by rain or the like.

[0095] Furthermore, the optical axis OA of the imaging device 21 extends obliquely downward from the lens 21a or the cover. Therefore, the lens 21a or the cover is less likely to get wet by rain or the like.

[0096] In addition, in this embodiment, Figure 6 As shown, the outermost end position P1 of the cover member 9c is located inward in the left-right direction relative to the outermost end position P2 of the door 9a located below the cover member 9c. Therefore, the cover member 9c is less likely to interfere with obstacles outside the hydraulic excavator 100.

[0097] In addition, in this embodiment, Figure 9As shown, in the mounting area RA where the antenna 31 is mounted, the top surface of the cover member 9c's top plate portion 9cu is flat. This makes it easy to attach the bottom surface of the antenna 31 in close contact with the top plate portion 9cu in the mounting area RA. This prevents moisture, dust, and the like from entering the interior of the machine room exterior 9 from the outside through the through-hole OP2 of the cover member 9c, into which the antenna 31 is inserted.

[0098] In addition, in this embodiment, Figure 5 and Figure 6 As shown, the support 22 supporting the detector DT is located on the machine room MR side relative to the cover member 9c. This prevents the support 22 from protruding outside the cover member 9c, thereby preventing the support 22 from interfering with obstacles outside the hydraulic excavator 100.

[0099] <Note>

[0100] The above description includes the following additional features.

[0101] (Note 1)

[0102] A working machine having a machine room, wherein:

[0103] The operating machine comprises:

[0104] Mechanical room exterior covering the mechanical room; and

[0105] a detector for detecting external information of the working machine,

[0106] The machine room exterior has a cover member extending in the front-rear direction on the upper portion of the machine room exterior.

[0107] The detector has a portion located on the machine room side relative to the cover member.

[0108] (Note 2)

[0109] The working machine according to Supplementary Note 1, wherein:

[0110] The detector includes an imaging device having at least one component of a lens and a cover.

[0111] The cover member has a first inclined portion and a second inclined portion connected to the first inclined portion.

[0112] The first inclined portion is inclined so as to protrude toward the outside of the working machine as it moves downward from top to bottom, and the second inclined portion is inclined so as to protrude toward the outside of the working machine as it moves upward from bottom to top.

[0113] The at least one component of the imaging device is exposed to the outside of the cover member through a through hole provided in the second inclined portion.

[0114] It should be noted that the detector may be constituted by a camera alone, or may include other devices (antenna, radar, LiDAR, ultrasonic sensor) in addition to the camera.

[0115] (Note 3)

[0116] The working machine according to Supplementary Note 1 or Supplementary Note 2, wherein:

[0117] The machine room is provided with a door located below the cover member.

[0118] The outermost end of the cover member is positioned inward in the left-right direction relative to the outermost end of the door.

[0119] (Note 4)

[0120] The working machine according to any one of Supplementary Notes 1 to 3, wherein:

[0121] The detector includes an antenna,

[0122] The upper surface of the cover member has a mounting area for mounting the antenna.

[0123] In the mounting region, the upper surface of the cover member is flat.

[0124] It should be noted that the detector may be composed of an antenna alone, or may include other devices (camera, radar, LiDAR, ultrasonic sensor) in addition to the antenna.

[0125] (Note 5)

[0126] The working machine according to any one of Supplementary Notes 1 to 4, wherein:

[0127] The working machine further includes a support member for supporting the detector.

[0128] The support is located on the machine room side with respect to the cover member.

[0129] The embodiments disclosed herein are to be considered in all respects as illustrative and non-restrictive. The scope of the present invention is indicated by the technical claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the technical claims.

[0130] Description of reference numerals:

[0131] 1 Main body; 2 Working device; 3 Swinging body; 4 Operator's cab; 4S Driver's seat; 5 Traveling body; 5Cr Crawler track; 5M Travel motor; 6 Boom; 7 Arm; 8 Bucket; 9 Machine exterior; 9S Side panel; 9a Door; 9b Side panel; 9c Cover member; 9cf Support; 9cu Top panel; 9d Cover; 10 Boom cylinder; 11 Arm cylinder; 12 Bucket cylinder; 14 Boom top pin; 15 Arm top pin; 17 Bucket link; 21 Camera; 21a Lens; 21b Housing; 22 Support; 23, 33 Fixing member; 31 Antenna; 31a Upper housing; 31b Lower housing; 31c Fixing part; 31d Terminal; 41 Frame; 42 Cooling unit; 42a Heat exchanger; 42b Fan; 100 Hydraulic excavator; CW counterweight; DT detector; DU drive unit; LS second tilt section; MR machine room; OA optical axis; OP1 and OP2 through-holes; P1 and P2 positions; RA mounting area; US first tilt section; VE intake and exhaust holes; WR1 and WR2 wiring.

Claims

1. A working machine having a machine room, wherein: The working machine comprises: A mechanical room exterior covering the mechanical room; as well as a detector for detecting external information of the working machine, The machine room exterior has a cover member extending in the front-rear direction at the upper portion of the machine room exterior. The detector has a portion located on the machine room side with respect to the cover member.

2. The working machine according to claim 1, wherein: The detector includes an imaging device having at least one component of a lens and a cover. The cover member has a first inclined portion and a second inclined portion connected to the first inclined portion. The first inclined portion is inclined so as to protrude toward the outside of the working machine as it moves downward from top to bottom, and the second inclined portion is inclined so as to protrude toward the outside of the working machine as it moves upward from bottom to top. The at least one component of the imaging device is exposed to the outside of the cover member through the through hole provided in the second inclined portion.

3. The working machine according to claim 1 or 2, wherein: The machine room is provided with a door located below the cover member. The outermost end of the cover member is located on the inner side in the left-right direction than the outermost end of the door.

4. The working machine according to claim 1, wherein: The detector comprises an antenna, The upper surface of the cover member has a mounting area for mounting the antenna. In the mounting region, the upper surface of the cover member is flat.

5. The working machine according to claim 1, wherein: The working machine further includes a support member for supporting the detector. The support is located on the machine room side with respect to the cover member.

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