Work machine

Abstract

The purpose of the present invention is to provide a work machine in which an antenna and a communication device can be efficiently mounted. A work machine (3) is provided with a machine body (30), a first antenna (11), and a first communication device (21). The machine body (30) has a riding room (4) in which a passenger can ride. The first antenna (11) is disposed in the boarding room (4). The first communication device (21) is disposed on one side in the width direction (left-right direction D3) of the boarding room (4).

Description

Technical Field

[0001] This invention relates to working machinery having a body with a passenger compartment. Background Technology

[0002] As a related technology, it is known to have work machines equipped with multiple antennas (GPS receivers) for measuring the position of the machine body (see, for example, Patent Document 1). The work machine involved in the related technology has a cockpit (operator's cab) forming a driver's cab on the front side of the rotating body, and multiple antennas are detachably mounted on the upper part of the cockpit.

[0003] In related technologies, a detachable cockpit protection device is installed on the upper part of the cockpit, and multiple antennas are mounted on the cockpit protection device. Here, by setting the antenna closer to the work machine (work device) higher than the antenna farther from the work machine, the receiving sensitivity of the antenna closer to the work machine is prevented from decreasing due to the influence of the work machine.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2008-38438

[0005] In the operating machinery involved in the aforementioned related technologies, multiple antennas are installed using a cockpit protection device that covers the entire upper area of ​​the cockpit. Therefore, when communication devices are installed around the cockpit, the cockpit protection device may obstruct the communication of the communication devices. Summary of the Invention

[0006] The purpose of this invention is to provide a machine tool that can efficiently install antennas and communication devices.

[0007] One embodiment of the present invention relates to a working machine comprising a body, a first antenna, and a first communication device. The body has a passenger compartment for passengers to ride in. The first antenna is disposed on the passenger compartment. The first communication device is disposed on one side of the passenger compartment in the width direction.

[0008] According to the present invention, a machine tool capable of efficiently installing antennas and communication devices can be provided. Attached Figure Description

[0009] Figure 1 This is a schematic perspective view of the working machinery involved in Embodiment 1, viewed from the left rear.

[0010] Figure 2 This is a schematic perspective view of the working machinery involved in Embodiment 1, viewed from the right rear.

[0011] Figure 3 This is a schematic left view of the working machinery involved in Embodiment 1.

[0012] Figure 4 This is a schematic plan view of the operating machinery involved in Implementation Method 1.

[0013] Figure 5 This is a schematic perspective view of the cab of the work machine involved in Embodiment 1, viewed from an obliquely upward angle.

[0014] Figure 6 The main part of the cab of the working machine involved in Embodiment 1 is shown. Figure 5 A magnified view of region Z1.

[0015] Figure 7 This is a schematic right view of the passenger compartment of the work machine according to Embodiment 1.

[0016] Figure 8 The main part of the cab of the working machine involved in Embodiment 1 is shown. Figure 7 A magnified view of region Z1.

[0017] Figure 9 This is a schematic front view of the passenger compartment of the work machine according to Embodiment 1.

[0018] Figure 10 This is a schematic rear view of the passenger compartment of the work machine according to Embodiment 1.

[0019] Figure 11 This is a schematic plan view of the passenger compartment of the working machine involved in Embodiment 1.

[0020] Figure 12 This is a schematic plan view of the passenger compartment, which omits the cockpit panel type, in the working machine described in Embodiment 1, as viewed from an obliquely upward angle.

[0021] Figure 13 This is a schematic plan view of the passenger compartment, which omits the cockpit panel type, in the working machine described in Embodiment 1, as viewed from a slightly lower angle.

[0022] Figure 14 The main part of the cab of the working machine involved in Embodiment 1 is shown. Figure 13 A magnified view of region Z1.

[0023] Explanation of reference numerals in the attached figures

[0024] 3…Working machinery; 4…Ride compartment; 11…First antenna; 12…Second antenna; 21…First communication device; 22…Second communication device (electrical equipment); 30…Body; 36…Alarm device; 51…First bracket; 511…First support; 512…Second support; 513…Recess; 453…Longitudinal frame; C1…First cable; C2…Second cable; D3…Left and right direction (width direction). Detailed Implementation

[0025] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. These embodiments are merely examples embodying the present invention and are not intended to limit the scope of the invention.

[0026] (Implementation Method 1)

[0027] [1] Overall structure

[0028] like Figures 1-4 As shown, the work machine 3 according to this embodiment includes a traveling unit 31, a rotating unit 32, and a working machine 33. Additionally, the work machine 3 includes a passenger compartment 4 for passengers to ride in. In this embodiment, the traveling unit 31, the rotating unit 32, the working machine 33, and the passenger compartment 4 are included in the body 30 of the work machine 3.

[0029] In addition, the operating machine 3 involved in this embodiment also includes a first antenna 11, a second antenna 12, and a first communication device 21 (see reference). Figure 2 ) and the second communication device 22 (refer to Figure 6 The first antenna 11 and the second antenna 12 are antennas of a positioning device that detect the current position (latitude, longitude, and altitude, etc.) and current orientation of the machine body 30. The first communication device 21 and the second communication device 22 are configured to communicate with devices (servers, etc.) outside the machine body 30 through different communication methods. Here, electrical components (equipment) such as the first antenna 11, the second antenna 12, the first communication device 21, and the second communication device 22 are mounted on the machine body 30 of the working machine 3.

[0030] Furthermore, the operating machine 3 also has a first bracket 51 (refer to...) Figure 4 ) and second bracket 52 (refer to Figure 5 The first bracket 51 is a component that supports at least the first antenna 11 and is mounted on the body 30. The second bracket 52 is a component that supports at least the second antenna 12 and is mounted on the body 30.

[0031] In addition, the operating machine 3 is also equipped with indicator lights 34 (see reference). Figure 2 ), lamps 351, 352, 353 (refer to) Figure 5 ), alarm device 36 (refer to) Figure 2 Display devices, operating devices, control devices, and various sensors (including sonar and cameras, etc.).

[0032] The term "operating machinery" in this disclosure refers to various types of machinery used for operations. For example, it includes backhoe loaders (including hydraulic excavators, mini excavators, etc.), wheel loaders, and transport vehicles. The operating machinery 3 is configured to perform more than one operation. The operating machinery 3 is not limited to "vehicles" and can also be, for example, operating vessels, drones, or multi-rotor aircraft. Furthermore, the operating machinery 3 is not limited to construction machinery; it can also be, for example, agricultural machinery such as rice transplanters, tractors, or combine harvesters. In this embodiment, unless otherwise specified, the operating machinery 3 is a passenger-type backhoe loader capable of performing operations such as digging, leveling, trenching, or loading. More specifically, the work machine 3 involved in this embodiment is assumed to be a "super small turning type" in which the rotating part 32 including the work machine 33 can rotate in a full circumference within 120% of the full width of the traveling part 31 (the full width of the left and right pairs of tracks 311) or a "rear super small turning type" in which the rear turning radius ratio is within 120%.

[0033] Furthermore, in this embodiment, as an example, the passenger in the passenger compartment 4 is an operator, and the working machine 3 operates according to the passenger's operation. However, the passenger is not limited to an operator. For example, if the working machine 3 operates according to remote operation or automatic driving, the passenger can also be a person riding in the working machine 3 for purposes such as monitoring or inspection (maintenance). Moreover, the passenger compartment 4 can also accommodate multiple passengers simultaneously; in this case, multiple seats can be provided in one passenger compartment 4.

[0034] In this embodiment, for ease of explanation, the vertical direction of the working machine 3 in its usable state is defined as the up-down direction D1. Furthermore, the forward-backward direction D2 and the left-right direction D3 are defined based on the direction observed by the passenger (operator) in the passenger compartment 4 of the working machine 3. In other words, all directions used in this embodiment are defined based on the passenger compartment 4 of the working machine 3. The direction in which the body 30 moves when the working machine 3 moves forward is "forward," and the direction in which the body 30 moves when the working machine 3 moves backward is "rear." Similarly, the direction in which the front end of the body 30 moves when the working machine 3 turns right is "right," and the direction in which the front end of the body 30 moves when the working machine 3 turns left is "left." The passenger compartment 4 is located in the rotating section 32; therefore, as the rotating section 32 rotates, the forward-backward direction D2 and the left-right direction D3 relative to the traveling section 31 change, as follows: Figure 1 Thus, the direction is defined with the front of the passenger compartment 4 facing the direction of travel of the travel unit 31. However, the above-mentioned direction is not intended to limit the direction of use of the work machine 3 (the direction of use).

[0035] The work machine 3 is equipped with an engine that serves as a power source. In this embodiment, as an example, the engine is a diesel engine. The engine is driven by fuel (here, light oil) supplied from a fuel tank. In the work machine 3, for example, a hydraulic pump is driven by the engine, and working oil is supplied from the hydraulic pump to the hydraulic actuators (including hydraulic motors 61 and hydraulic cylinders 62, etc.) of various parts of the machine body 30, thereby driving the machine body 30. Such a work machine 3 is controlled, for example, by a user (operator) riding in the passenger compartment 4 of the machine body 30 operating the operating device.

[0036] In this embodiment, as described above, assuming the working machine 3 is a passenger-mounted backhoe, the working machine 33 is driven by the operator (rider) in the cab 4 to perform excavation and other operations. The working machine 33 is supported on a rotating section 32 on which the cab 4 is provided. Therefore, when the rotating section 32 rotates, the working machine 33 rotates together with the cab 4.

[0037] Here, the passenger compartment 4 of the machine body 30 is equipped with display devices and operating devices, etc., so that the passenger can observe the various information related to the working machine 3 displayed on the display devices while operating the operating devices. As an example, the display screen shows information related to the operating status of the working machine 3, such as the cooling water temperature and the working oil temperature, so that the passenger can confirm the information related to the operating status of the working machine 3 required to operate the operating devices through the display devices.

[0038] The traveling unit 31 has a traveling function and is configured to travel on the ground (including turning). The traveling unit 31 includes, for example, a pair of left and right tracks 311 and a bulldozer blade 312. The traveling unit 31 also includes a hydraulic motor 61 (hydraulic actuator) for driving the tracks 311.

[0039] The rotating section 32 is positioned above the traveling section 31 and can rotate relative to the traveling section 31 when viewed from above. That is, the rotating section 32 is located above the traveling section 31 and is configured to rotate relative to the traveling section 31 about a rotation axis in the vertical direction. The rotating section 32 includes a hydraulic motor, etc., which serves as a hydraulic actuator for rotation. In addition to the passenger compartment 4, the rotating section 32 is equipped with an engine and a hydraulic pump, etc. Furthermore, the rotating section 32 is provided with a fulcrum 321 (see reference) for mounting the work machine 33. Figure 2 The boom bracket of the boom. The slewing section 32 has a generally circular shape when viewed from above, with its front end flatly cut off. The slewing section 32 is capable of rotating about the center of this circular shape.

[0040] The working machine 33 is supported on the slewing unit 32 and is configured to perform more than one task. The working machine 33 is supported on the fulcrum 321 (boom bracket) of the slewing unit 32 and performs the task. The working machine 33 has a bucket 331. The bucket 331 is an accessory (working tool) installed on the body 30 of the working machine 3, and is composed of any tool selected from a variety of accessories depending on the task. As an example, the bucket 331 is detachably installed on the body 30 and can be replaced according to the task. As (end-of-line) accessories for the working machine 3, in addition to the bucket 331, examples include a breaker, an auger, a crusher, a fork, a fork claw, and a steel frame cutter. Various implements including iron cutter, asphalt cutter, lawn mower, ripper, mulcher, tilting rotary, and tamper.

[0041] The work machine 33 also includes a boom 332, a stick 333, and hydraulic actuators (including a hydraulic cylinder 62 and a hydraulic motor, etc.). The bucket 331 is mounted on the front end of the stick 333. The bucket 331 is supported on the stick 333 in a manner that allows it to rotate about a horizontal axis of rotation.

[0042] The boom 332 is supported by the fulcrum 321 of the slewing section 32 and is rotatable. Specifically, the boom 332 is supported by the fulcrum 321 and is rotatable about a rotation axis in the horizontal direction. The boom 332 has a shape that extends upward from the base end supported by the fulcrum 321. The stick 333 is connected to the front end of the boom 332. The stick 333 is supported on the boom 332 in a manner that allows it to rotate about a rotation axis in the horizontal direction.

[0043] The work machine 33 operates by receiving power from the engine, which serves as its power source. Specifically, the hydraulic pump, driven by the engine, supplies working oil to the hydraulic actuators (hydraulic cylinder 62, etc.) of the work machine 33, thereby actuating the various parts of the work machine 33 (bucket 331, boom 332, and stick 333).

[0044] In this embodiment, in particular, the work machine 33 has a multi-joint structure in which the boom 332 and stick 333 are configured to rotate independently. That is, the boom 332 and stick 333 each rotate about a rotation axis in the horizontal direction, so that the multi-joint work machine 33 including the boom 332 and stick 333 can, for example, perform extension and folding operations as a whole. Furthermore, the bucket 331, as an accessory, is supported on the machine body 30 (rotating part 32) via the boom 332 and stick 333, and the bucket 331 itself rotates relative to the stick 333, thereby enabling the opening and closing of the bucket 331.

[0045] The traveling section 31 and the slewing section 32 each operate by receiving power from the engine, which serves as the power source, just like the working machine 33. That is, working oil is supplied from the hydraulic pump to the hydraulic motor 61 of the traveling section 31 and the hydraulic motor of the slewing section 32, thereby causing the slewing section 32 and the traveling section 31 to operate.

[0046] In addition, the working machine 3 is also equipped with a drive device (mechanism) such as a PTO (Power Take-Off) for supplying power to the bucket 331 (accessory). Specifically, the drive device delivers working oil supplied by the hydraulic pump driven by the engine to the bucket 331 and adjusts the flow rate of the working oil, thereby adjusting the amount of power supplied to the bucket 331.

[0047] The passenger compartment 4 is a space for passengers to ride in, and in this embodiment, it is located on the rotating section 32. Therefore, when viewed from above, if the rotating section 32 rotates, the passenger compartment 4 also rotates. Specifically, when the rotating section 32 is divided into two parts in the left-right direction D3, the passenger compartment 4 is located on the left side. The passenger compartment 4 has at least a seating area for passengers to sit in.

[0048] The types of passenger compartments 4 for construction machinery and other operating equipment 3 include cockpit-type, canopy-type, and floor-type. A cockpit-type passenger compartment 4 has a cabin 42, in which a passenger sits. A canopy-type passenger compartment 4 has a canopy (roof), in which a passenger sits in the space below the canopy. A floor-type passenger compartment 4 does not have a cabin 42 or a canopy; the passenger sits in an open space above. In other words, the passenger compartment 4 can include not only forms surrounded by panels or the like, but also various forms prepared as a space for a passenger to sit in. In this embodiment, a cockpit-type passenger compartment 4 will be used as an example for explanation.

[0049] In this embodiment, the passenger compartment 4 is located on the left side of the body 30 of the working machine 3. Furthermore, the passenger compartment 4 is positioned on the left side of the track 311 (see reference). Figure 1Above the passenger compartment 4. Due to this configuration, passengers get on and off the passenger compartment 4 from the left side. Therefore, in this embodiment, the door 43 of the passenger compartment 4 is located on the left side in the left-right direction D3 of the passenger compartment 4. That is, passengers get on the passenger compartment 4 through the door 43 located on the left side of the passenger compartment 4, and get off the passenger compartment 4 through the door 43 located on the left side of the passenger compartment 4.

[0050] The cockpit-style passenger compartment 4 includes: a seat for passengers to sit on, i.e., a passenger seat, and a cabin 42 covering the shape of the passenger seat. The cabin 42 has a (cabin) frame 45 and a cabin roof 426, etc. In other words, the cabin 42 forms the outer shape of the passenger compartment 4, and passengers sit inside the cabin 42 (inner side).

[0051] The frame 45 is the structural skeleton of the cockpit 42, forming a structure that surrounds the cockpit space. The cockpit canopy 426 is positioned above the frame 45 and supported by the frame 45. The cockpit canopy 426 is roughly rectangular in shape when viewed from above, and is formed to cover the entire size of the passenger compartment 4.

[0052] The cockpit 42 has a front panel 421, a left side panel 422, a right side panel 423, and a rear panel 424. The front panel 421 forms the front surface of the cockpit 42, the left side panel 422 forms the left side surface of the cockpit 42, the right side panel 423 forms the right side surface of the cockpit 42, and the rear panel 424 forms the rear surface of the cockpit 42.

[0053] A front glass 441 is provided on the front panel 421. Similarly, a left glass 442 and a right glass 443 are provided on the left side panel 422 and the right side panel 423, respectively, and a rear glass 444 is provided on the rear panel 424. The front panel 421, left side panel 422, right side panel 423, and rear panel 424 are appropriately mounted on both sides of the frame 45 in the front-rear direction D2 and on both sides in the left-right direction D3, together with the door 43, to surround the cabin space from all four sides.

[0054] Door 43 is provided at an opening on the left side of the cabin 42, and can rotate between a "closed position" covering the opening and an "open position" allowing passengers to pass through. Types of doors 43 include "front-opening" doors that open forward in the longitudinal direction D2 and "rear-opening" doors that open backward. In this embodiment, as an example, door 43 is a front-opening type. Furthermore, in this embodiment, door 43 opens outward; when viewed from the front of door 43 outside the passenger compartment 4 (left side in this embodiment), door 43 is opened by pulling the free end of door 43 forward (outside the passenger compartment 4).

[0055] With the structure described above, when boarding the passenger compartment 4, the passenger enters the cabin space inside the cabin 42 with the door 43 open (door 43 in the open position) and closes the door 43 (door 43 in the closed position), thus completing the boarding process. Conversely, when disembarking from the passenger compartment 4, the passenger exits the cabin 42 with the door 43 open (door 43 in the open position) and closes the door 43 (door 43 in the closed position), thus disembarking from the passenger compartment 4. In particular, in a cabin-type passenger compartment 4 equipped with a cabin 42 as in this embodiment, at least the frame 45 functions as the skeleton of the cabin 42, possessing sufficient strength (rigidity) to support the cabin roof 426 and the door 43, etc. Furthermore, the cabin 42 can also be detached from the body 30 (rotating part 32) of the working machine 3.

[0056] Furthermore, various sensors and external items such as mirrors can be installed in the cockpit 42.

[0057] The positioning device of the work machine 3 in this embodiment utilizes a satellite positioning system such as GNSS (Global Navigation Satellite System) to detect the current position and orientation of the machine body 30. By determining the current position and orientation of the machine body 30, it is possible to manage the work status (progress, etc.), including recording the travel trajectory of the work machine 3, and to perform automatic driving of the work machine 3. The automatic driving of the work machine 3 here includes: "autonomous driving," in which the work machine 3 moves autonomously without the operation of the operator, and "semi-automatic driving," in which only steering is automated, such as straight-line assistance. "Semi-automatic driving" means that the work machine 3 cannot move without the operation of the operator, but the burden of steering is reduced for the operator, and it can travel along a target path such as a straight path, thus contributing to the improvement of work efficiency.

[0058] The first antenna 11 and the second antenna 12 constituting the positioning device receive GNSS signals (satellite signals) from positioning satellites of satellite positioning systems such as GNSS. That is, the first antenna 11 and the second antenna 12 are position determination antennas used to determine the position of the aircraft 30. The positioning device performs the following positioning process: using the GNSS signals transmitted from the satellites to determine (calculate) the current position and current orientation of the aircraft 30.

[0059] Here, the first antenna 11 and the second antenna 12 are positioned on the upper surface (top surface) of the fuselage 30 for easy reception of signals (GNSS signals) from satellites. The first antenna 11 and the second antenna 12 are configured to be separate when viewed from above. Thus, the positioning device can receive GNSS signals, etc., through each of the two antennas (the first antenna 11 and the second antenna 12).

[0060] The current position of the operating machine 3 can be determined based on the position of either the first antenna 11 or the second antenna 12, or based on the positions of both. Therefore, even if one of the first antenna 11 or the second antenna 12 cannot receive GNSS signals, the current position and bearing of the machine 30 can be determined by the other receiving GNSS signals. Furthermore, since the first antenna 11 and the second antenna 12 can be determined separately at their separated points when viewed from above, the orientation (current bearing) of the machine 30 can also be included in the determination.

[0061] The first communication device 21 and the second communication device 22 are respectively configured to communicate with a server device that publishes correction data. In this disclosure, "capable of communication" means being able to send and receive information directly or indirectly via a communication network or repeater through appropriate communication methods such as wired or wireless communication (communication using radio waves or light as a medium). For example, the first communication device 21 and the second communication device 22 can communicate with the server device via communication networks such as the Internet, LAN (Local Area Network), WAN (Wide Area Network), public telephone lines, mobile phone networks, packet networks, or wireless LANs. The correction data is data used to correct the current position and azimuth determined based on GNSS signals received by the first antenna 11 and the second antenna 12, and is published from the server device at any time.

[0062] In this embodiment, as an example, the first communication device 21 is a communication device (communication terminal) that performs wireless communication via a mobile phone line, i.e., mobile communication. The second communication device 22 is a communication device (communication terminal) that performs wireless communication in accordance with Wi-Fi (registered trademark). That is, the first communication device 21 and the second communication device 22 have different communication methods, but both communicate with the server device through wireless communication using radio waves as the communication medium.

[0063] With the above structure, the positioning device employs a relatively high-precision positioning method such as RTK (Real-Time Kinematic) positioning. This RTK positioning is based on positioning information (GNSS signals, etc.) received by the first antenna 11 and the second antenna 12, and correction data (correction information) received by the first communication device 21 and the second communication device 22. Therefore, in the machine tool 3 according to this embodiment, the current position and orientation of the machine body 30 can be determined with relatively high precision, which, for example, helps to improve the accuracy of the machine tool 3's operation status management and automatic driving.

[0064] The indicator light 34 illuminates (emits light) according to the operating state of the working machine 3. The indicator light 34 is located outside the cockpit 42 and is primarily for displaying information to people around the working machine 3. In this embodiment, in particular, the indicator light 34 is configured to emit light in multiple colors (e.g., three colors), emitting different colors depending on the operating state of the working machine 3.

[0065] The indicator light 34 illuminates (emits light) according to the operating state of the working machine 3. The indicator light 34 is located outside the cockpit 42 and is primarily for displaying information to people around the working machine 3. In this embodiment, in particular, the indicator light 34 is configured to emit light in multiple colors (e.g., three colors), emitting different colors depending on the operating state of the working machine 3.

[0066] Lamps 351, 352, and 353 emit light (e.g., white light) outward from the machine body 30, serving as work lights to illuminate the area around the machine body 30. Lamps 351, 352, and 353 illuminate the work object being worked on by the machine 3, enabling visual observation of the work object even in dark environments such as at night.

[0067] The alarm device 36 has the function of outputting an alarm sound. The alarm device 36 is located outside the cockpit 42 and is primarily used to alert people around the operating machinery 3. The alarm device 36 has at least one of a sound output unit, such as an alarm buzzer, that emits an alarm by sound, and a light output unit, such as an alarm light, that emits an alarm by light. Therefore, it can issue an alarm to people in the vicinity in various environments, such as well-lit areas during the day or noisy areas.

[0068] The first antenna 11, the second antenna 12, the first communication device 21, the second communication device 22, the indicator lights 34, 351, 352, 353, and the alarm device 36 are all mounted on the rotating part 32. In particular, such as Figures 2-4As shown, the first antenna 11, the second antenna 12, the first communication device 21, the second communication device 22, the indicator light 34, the lights 351, 352, 353, and the alarm device 36 are mounted on the outer surface of the passenger compartment 4 on the rotating part 32. The configuration of the first antenna 11, the second antenna 12, the first communication device 21, the second communication device 22, the indicator light 34, the lights 351, 352, 353, and the alarm device 36 is described in detail in the "[2] Configuration of Electrical Equipment" section.

[0069] The control device, for example, is based on a computer system with one or more processors such as a CPU (Central Processing Unit) and one or more memories such as ROM (Read Only Memory) and RAM (Random Access Memory), and performs various processes (information processing). In this embodiment, the control device is a comprehensive controller that controls the entire machine 3, and is, for example, composed of an electronic control unit (ECU). However, the control device may also be set separately from the comprehensive controller, or one or more processors may be used as the main structure.

[0070] In addition to the aforementioned structure, the working machine 3 also includes a stop lever (door locking lever), a fuel tank, a working oil tank, a coolant tank, and a battery. The stop lever can be operated between the "raised position" and the "lowered position." If the stop lever is in the "raised position," the movement of the working machine 3 is forcibly restricted regardless of the operation of the operating device.

[0071] [2] Configuration of electrical components

[0072] Next, refer to Figures 5 to 14 The configuration of electrical components such as the first antenna 11, the second antenna 12, the first communication device 21, the second communication device 22, the indicator light 34, the lights 351, 352, 353, and the alarm device 36 in the working machine 3 involved in this embodiment will be described in detail.

[0073] In this embodiment, the first antenna 11, the second antenna 12, the first communication device 21, the second communication device 22, the indicator lights 34, lights 351, 352, 353, and the alarm device 36 are all installed in the passenger compartment 4. Specifically, the first antenna 11, the second antenna 12, the first communication device 21, the second communication device 22, the indicator lights 34, lights 351, 352, 353, and the alarm device 36 are installed on the outside of the cabin 42 of the passenger compartment 4. Therefore, the following description focuses on the area around the passenger compartment 4 (cabin 42) in the working machine 3.

[0074] Figure 5This is a three-dimensional view of passenger compartment 4 taken from an oblique, upward perspective. Figure 6 yes Figure 5 A magnified view of region Z1. Figure 7 This is a right view of passenger compartment 4. Figure 8 yes Figure 7 A magnified view of region Z1.

[0075] Figure 9 This is the front view (head view) of passenger compartment 4. Figure 10 This is a rear view (rear view) of passenger compartment 4. Figure 11 This is a floor plan (top view) of passenger compartment 4. Figure 12 This is a perspective view of the passenger compartment 4 from an obliquely upward angle, omitting the panel types (front panel 421, left side panel 422, right side panel 423, and rear panel 424) of the cockpit 42. Figure 13 This is a perspective view of the passenger compartment 4 from a slightly lower angle, omitting the panel types (front panel 421, left side panel 422, right side panel 423, and rear panel 424) of the cockpit 42. Figure 14 yes Figure 13 An enlarged view of region Z1. In the above figure, the illustrations of the passenger seats, operating devices, and display devices inside the cabin 42 have been appropriately omitted.

[0076] As described above, the machine tool 3 according to this embodiment includes: a body 30 having a passenger compartment 4 for passengers to ride in; a first antenna 11 and a second antenna 12; a first bracket 51; and a second bracket 52. Here, the first antenna 11 and the second antenna 12 are arranged on the passenger compartment 4 in a manner that they are separate from each other when viewed from above. The first bracket 51 is supported on the passenger compartment 4 and supports the first antenna 11. The second bracket 52 is independent of the first bracket 51, supported on the passenger compartment 4, and supports the second antenna 12.

[0077] That is, such as Figures 5-8 As shown, the first antenna 11 is positioned above the passenger compartment 4 by means of a first bracket 51. The second antenna 12 is positioned above the passenger compartment 4 by means of a second bracket 52. Here, the first bracket 51 and the second bracket 52 are relatively independent and are each supported separately on the passenger compartment 4. Therefore, by using the first bracket 51 and the second bracket 52, the first antenna 11 and the second antenna 12 can be positioned above the passenger compartment 4 in a state of separation from each other when viewed from above.

[0078] Furthermore, since the first bracket 51 for mounting the first antenna 11 and the second bracket 52 for mounting the second antenna 12 are relatively independent, the mounting structure of the antennas (first antenna 11 and second antenna 12) can be miniaturized, making it easier to achieve weight reduction and miniaturization of the operating machinery 3. As a result, the mounting structure of the antennas (first antenna 11 and second antenna 12) can be improved.

[0079] Furthermore, the work machine 3 according to this embodiment includes: a body 30 having a passenger compartment 4 for passengers to ride in; a first antenna 11; and a first communication device 21. The first antenna 11 is disposed on the passenger compartment 4. The first communication device 21 is disposed on one side of the passenger compartment 4 in the width direction (left-right direction D3). In this embodiment, as an example, the first communication device 21 is disposed on the right side of the passenger compartment 4 in the width direction (left-right direction D3).

[0080] That is, such as Figures 5-8 As shown, the first antenna 11 is disposed above the passenger compartment 4, while the first communication device 21 is disposed on one side of the passenger compartment 4 in the width direction (left-right direction D3). In this embodiment, in particular, the passenger compartment 4 has a cabin 42, so the first antenna 11 is located above the cabin roof 426 that constitutes the upper surface of the cabin 42, and the first communication device 21 is located on the side (right side) of the cabin 42.

[0081] By utilizing the positional relationship between the first antenna 11 and the first communication device 21, the communication device (first communication device 21) can be mounted around the cockpit 42, and the first antenna 11 and the first communication device 21 can be configured in a manner that minimizes mutual interference. As a result, the antenna (first antenna 11) and the communication device (first communication device 21) can be installed efficiently.

[0082] More specifically, in this embodiment, both the first antenna 11 and the second antenna 12 have a generally disc-shaped appearance when viewed from above. The first antenna 11 and the second antenna 12 have the same external shape.

[0083] Here, as Figures 5-10 As shown, in this embodiment, the first antenna 11 and the second antenna 12 are located diagonally opposite each other in a top-down view of the passenger compartment 4. This ensures that the distance between the first antenna 11 and the second antenna 12 is as large as possible. As a result, the first antenna 11 and the second antenna 12 are less likely to interfere with each other, and the reception accuracy of the antennas (first antenna 11 and second antenna 12) for signals (such as GNSS signals) is improved.

[0084] More specifically, the first antenna 11 and the second antenna 12 are located at opposite corners of the passenger compartment 4 when viewed from above. In this embodiment, the first antenna 11 is positioned at the right rear corner of the cabin roof 426, which forms the upper surface of the passenger compartment 42, and the second antenna 12 is positioned at the left front corner of the cabin roof 426. This ensures that the distance between the first antenna 11 and the second antenna 12 is as large as possible. As a result, the first antenna 11 and the second antenna 12 are less likely to interfere with each other, and the reception accuracy of the antennas (first antenna 11 and second antenna 12) for signals (such as GNSS signals) is improved.

[0085] In particular, in this embodiment, the passenger compartment 4 is configured to be offset to one side in the width direction (left-right direction D3) of the fuselage 30. Furthermore, when viewed from above, the second antenna 12 is located at the corner of that side in the width direction (left-right direction D3) of the passenger compartment 4, and the first antenna 11 is located at the corner of the other side. Specifically, the passenger compartment 4 is configured to be offset to the left in the width direction (left-right direction D3) of the fuselage 30. Therefore, the second antenna 12 is located on the left side of the passenger compartment 4 (cabin 42), that is, at the outer corner in the width direction of the fuselage 30, and the first antenna 11 is located on the right side of the passenger compartment 4 (cabin 42), that is, at the inner corner in the width direction of the fuselage 30.

[0086] Therefore, at least the second antenna 12 can be positioned on the outer side of the fuselage 30 in the width direction, and the first antenna 11 can be positioned near the center in the width direction of the fuselage 30. This ensures that the distance between the first antenna 11 and the second antenna 12 is as large as possible, minimizing interference between them and improving the reception accuracy of signals (such as GNSS signals).

[0087] Furthermore, in this embodiment, the passenger compartment 4 is positioned biased towards one side of the fuselage 30 in the width direction (left-right direction D3), and the fuselage 30 has an engine hood 322 (see reference) on the other side in the width direction (left-right direction D3). Figure 4 Specifically, the passenger compartment 4 is positioned offset to the left in the width direction (left-right direction D3) of the fuselage 30, therefore the engine hood 322 is provided at the right end of the upper surface of the rotating section 32 in an openable and closable manner. With the engine hood 322 open, maintenance (fuel replenishment, etc.) of the fuel tank, working oil tank, and coolant tank can be performed through the inspection port closed by the engine hood 322. In this embodiment, the engine hood 322 is opened and closed by rotating around its rear end as a fulcrum.

[0088] Here, in the left-right direction D3, a working machine 33 is provided between the passenger compartment 4 and the engine hood 322. Therefore, the first antenna 11 and the second antenna 12 installed in the passenger compartment 4 will not interfere with the engine hood 322. Of course, even when the engine hood 322 is rotated open with its rear end as a fulcrum, the engine hood 322 will not come into contact with the first antenna 11 and the second antenna 12.

[0089] like Figure 6 As shown, the first communication device 21 has a device body 211 and an antenna 212. In this embodiment, as an example, the first communication device 21 is a communication device for mobile communication, so the antenna 212 is a rod-type (stick-type) antenna that protrudes upward from the device body 211.

[0090] like Figure 6 As shown, the second communication device 22 has a device body 221 and an antenna 222. In this embodiment, as an example, the second communication device 22 is a communication device for performing wireless communication in accordance with Wi-Fi (registered trademark), therefore the antenna 222 is provided independently of the device body 221 and is connected via a cable 223 (see reference). Figure 14 It is electrically connected to the main body 221 of the device.

[0091] Here, the first communication device 21 and the first antenna 11 are supported together on the first bracket 51. That is, the work machine 3 according to this embodiment has a first bracket 51 supported on the passenger compartment 4 and supporting the first antenna 11. The first communication device 21 is supported on the first bracket 51. Thus, the first bracket 51 used to install the first antenna 11 can also be used to install the first communication device 21.

[0092] The first communication device 21 and the first antenna 11 are supported together on the first bracket 51, so that the first antenna 11 and the first communication device 21 are located at the same corner of the passenger compartment 4 when viewed from above. In this embodiment, the first antenna 11 and the first communication device 21 are located at the right rear corner of the cabin roof 426 on the upper surface of the cabin 42 constituting the passenger compartment 4. In this way, by arranging the first antenna 11 and the first communication device 21 at the same corner of the passenger compartment 4 (here, the right rear corner), the first antenna 11 and the first communication device 21 can be configured efficiently.

[0093] In addition, such as Figures 7-10 As shown, the first communication device 21 is located below the first antenna 11. In other words, in the vertical direction D1, the first communication device 21 is positioned lower than the first antenna 11. Specifically, the first communication device 21 is configured such that at least its main body 211 is positioned lower than the first antenna 11. The lower end of the main body 211 of the first communication device 21 is located below the lower end of the first antenna 11. Furthermore, in this embodiment, the upper end of the main body 211 of the first communication device 21 is also located below the lower end of the first antenna 11.

[0094] That is, the first communication device 21 is positioned offset downwards relative to the first antenna 11. Therefore, when viewed from the front or side, the offset configuration of the first antenna 11 and the first communication device 21 easily avoids interference between them.

[0095] In addition, such as Figures 7-10As shown, the first antenna 11 and the second antenna 12 are located at the same height. In other words, the first antenna 11 and the second antenna 12 are positioned at the same location in the vertical direction D1. Specifically, at least a portion of the second antenna 12 in the vertical direction D1 is within the width of the first antenna 11 in the vertical direction D1, and at least a portion of the first antenna 11 in the vertical direction D1 is within the width of the second antenna 12 in the vertical direction D1. That is, for the first antenna 11 and the second antenna 12, if at least a portion is located at the same height, it can be said that they are located at the same height. In this embodiment, the center of the first antenna 11 in the vertical direction D1 and the center of the second antenna 12 in the vertical direction D1 are located at the same height.

[0096] That is, because the first antenna 11 and the second antenna 12 are at the same height, the first antenna 11 and the second antenna 12 can be positioned at the highest possible position, and the overall height of the working machine 3 is suppressed. As a result, for example, when transporting the working machine 3, even with the first antenna 11 and the second antenna 12 installed, the overall height of the working machine 3 is suppressed, making it easier to transport the working machine 3.

[0097] Furthermore, the first communication device 21 is located in front of the first antenna 11. Specifically, as... Figure 8 As shown, in the front-rear direction D2, the first communication device 21 is located in front of the first antenna 11. Here, the front end of the first communication device 21 is located further forward than the front end of the first antenna 11. Furthermore, in this embodiment, the rear end of the first communication device 21 is also located further forward than the front end of the first antenna 11.

[0098] That is, the first antenna 11 is positioned rearward and offset relative to the first communication device 21. Therefore, when viewed from above, the offset configuration of the first antenna 11 and the first communication device 21 easily avoids interference between them.

[0099] Furthermore, in this embodiment, as Figure 6 As shown, the first bracket 51 has a first support portion 511 and a second support portion 512. The first support portion 511 supports the first antenna 11 and is opposite to the upper surface of the passenger compartment 4. The second support portion 512 supports the first communication device 21 and is opposite to the side surface (right side) of one side (right side) of the passenger compartment 4. That is, the first support portion 511 of the first bracket 51 supporting the first antenna 11 is opposite to the cabin top cover 426 that constitutes the upper surface of the cabin 42. The second support portion 512 of the first bracket 51 supporting the first communication device 21 is opposite to the right side panel 423 that constitutes the right side surface of the cabin 42.

[0100] Therefore, the first antenna 11 and the first communication device 21 can be mounted on the passenger compartment 4 (cabin 42) via a first bracket 51 to avoid mutual interference. Furthermore, in this embodiment, the passenger compartment 4 is configured to be offset to the left in the width direction (left-right direction D3) of the fuselage 30. Thus, the first communication device 21 is mounted on the right side of the passenger compartment 4 (cabin 42), and is positioned inside the fuselage 30 in the width direction relative to the cabin 42. Therefore, compared to the case where the first communication device 21 is mounted on the outer side (left side) of the cabin 42 in the width direction of the fuselage 30, foreign objects are less likely to come into contact with the first communication device 21, and the first communication device 21 is protected.

[0101] More specifically, the first bracket 51 is made of a metal plate and has a first support portion 511 along the horizontal plane (the upper surface of the cabin 42) and a second support portion 512 along the vertical plane (the right side surface of the cabin 42). The second support portion 512 protrudes downward from the right end edge of the first support portion 511, and the first bracket 51 is integrally formed by the first support portion 511 and the second support portion 512 to present an approximately L-shape when viewed from the front.

[0102] The first bracket 51, thus constructed, is detachably secured to the cabin 42 of the passenger compartment 4 using fasteners such as bolts and / or nuts. The first antenna 11 is mounted on the upper surface of the first support portion 511 of the first bracket 51 (the side opposite to the cabin 42). The first communication device 21 is mounted on the right side surface of the second support portion 512 of the first bracket 51 (the side opposite to the cabin 42). Thus, the first bracket 51 can support both the first antenna 11 and the first communication device 21 in a state of levitation from the cabin 42 (supported in a position separate from the cabin 42).

[0103] Additionally, the second bracket 52 is constructed of a metal plate, having a portion along the horizontal plane (the upper surface of the cockpit 42) and a portion projecting downwards from the front edge of that portion along the vertical plane (the front surface of the cockpit 42). Thus, as... Figure 5 and Figure 7 As shown, the second bracket 52 is generally L-shaped when viewed from the side.

[0104] The second bracket 52, thus constructed, is detachably secured to the cabin 42 of the passenger compartment 4 using fasteners such as bolts and / or nuts. The second antenna 12 is mounted on the upper surface of the second bracket 52 (the side opposite to the cabin 42). Thus, the second bracket 52 can support the second antenna 12 in a floating state from the cabin 42 (supported in a position separate from the cabin 42).

[0105] And, as Figure 6 and Figure 8As shown, the main body 221 of the second communication device 22 is mounted on the left side surface (the side of the cockpit 42) of the second support portion 512 of the first bracket 51. That is, the main body 221 of the first communication device 21 and the second communication device 22 are mounted on the second support portion 512 of the first bracket 51. The main bodies 221 of the first communication device 21 and the second communication device 22 are respectively mounted on the front and back surfaces of the second support portion 512.

[0106] In other words, the machine tool 3 according to this embodiment is equipped with electrical components, which are installed on the side surface (right side surface) of the second support portion 512 opposite to one side (right side) of the passenger compartment 4. In this embodiment, the second communication device 22 (device body 221) is an example of an electrical component. That is, the second communication device 22 (device body 221) is arranged as an electrical component between the second support portion 512 of the first bracket 51 and the side surface (right side surface) of the passenger compartment 42. As a result, the gap between the first bracket 51 and the passenger compartment 42 can be effectively utilized, and the second communication device 22 (device body 221) does not protrude to the outside, thus also protecting the second communication device 22.

[0107] like Figure 6 and Figure 8 As shown, the antenna 222 of the second communication device 22 is mounted on the upper surface of the first support portion 511 of the first bracket 51 (the side opposite to the cockpit 42). That is, the first antenna 11 and the antenna 222 of the second communication device 22 are mounted on the first support portion 511 of the first bracket 51. The antenna 222 of the second communication device 22 is arranged in front of the first antenna 11 in a parallel manner with the first antenna 11 in the longitudinal direction D2.

[0108] That is, the antenna 222 of the second communication device 22 is located on the passenger compartment 4 (cabin 42) and in front of the first antenna 11. Here, the upper end of the antenna 222 of the second communication device 22 is lower than the upper end of the first antenna 11. As a result, the space above the cabin 42 can be effectively utilized, and the antenna 222 of the second communication device 22 does not protrude upwards compared to the first antenna 11, thus suppressing the full height of the working machine 3.

[0109] In addition, in this embodiment, such as Figures 5-10As shown, the indicator lights 34, 351, and alarm device 36 are arranged in the same manner as the first antenna 11 at the right rear corner of the cockpit 42. The lamp 351 illuminates the rear of the cockpit 42. Here, the indicator lights 34, 351, and alarm device 36 are arranged side by side in the vertical direction D1, in the order of indicator lights 34, 351, and alarm device 36 from top to bottom. Moreover, the indicator lights 34, 351, and alarm device 36 are mounted on one side (right side in this embodiment) of the cockpit 42 in the width direction (left-right direction D3), with the upper end of the indicator lights 34 at approximately the same height as the upper surface of the cockpit canopy 426.

[0110] The indicator lights 34, 351, and alarm device 36 are respectively fixed to the frame 45 of the cabin 42 that constitutes the passenger compartment 4 using mounting struts. More specifically, the indicator lights 34, 351, and alarm device 36 are mounted on the longitudinal frame 453 (described later) located at the right rear corner of the cabin 42 of the frame 45.

[0111] Furthermore, lamps 352 and 353 illuminate the front of the cockpit 42. In this embodiment, lamp 352 is positioned at the left front corner of the cockpit 42, similar to the second antenna 12. Lamp 353 is positioned at the right front corner of the cockpit 42. Lamps 352 and 353 are staggered in the vertical direction D1, with lamp 353 positioned higher than lamp 352. Moreover, lamps 352 and 353 are mounted on the cockpit 42, extending forward from the cockpit 42, with the upper end of lamp 353 at approximately the same height as the upper surface of the cockpit canopy 426.

[0112] Here, the first bracket 51 has a recess 513 at the rear end of the second support portion 512. For example... Figure 6 and Figure 8 As shown, the recess 513 is formed by making the length of the second support portion 512 in the front-rear direction D2 shorter than that of the first support portion 511, and the rear portion of the second support portion 512 is cut off. By arranging the indicator lamp 34 in the recess 513 formed in this way, interference between the indicator lamp 34 and the first bracket 51 can be avoided.

[0113] Based on the positional relationships described above, such as Figure 11 As shown, when viewed from above, the indicator light 34 is adjacent to the first antenna 11 in the width direction (left-right direction D3) of the body 30. That is, the indicator light 34 is positioned to the right of the first antenna 11 in the left-right direction D3, adjacent to the first antenna 11. Therefore, the first antenna 11 and the indicator light 34 are less likely to interfere with each other, and the visibility of the indicator light 34 can also be ensured.

[0114] Furthermore, the alarm device 36 is located behind the first communication device 21. That is, the alarm device 36, located below the indicator light 34, is positioned further rearward than the first communication device 21 mounted on the first bracket 51 in the longitudinal direction D2. As a result, the first communication device 21 and the alarm device 36 are less likely to interfere with each other, and the amount by which the alarm device 36 protrudes from the cockpit 42 in the width direction (left-right direction D3) of the fuselage 30 can be minimized.

[0115] Furthermore, the first communication device 21 is positioned in front of and above the lamp 351 used to illuminate the rear of the cockpit 42. That is, the first communication device 21 is positioned in front of the lamp 351 in the longitudinal direction D2 and higher than the lamp 351 in the vertical direction D1. As a result, the first communication device 21 and the lamp 351 are less likely to interfere with each other, and the illumination area of ​​the lamp 351 can be ensured.

[0116] In addition, such as Figure 11 As shown, when viewed from above, lamp 352 is adjacent to second antenna 12 in the longitudinal direction D2 of the fuselage 30. That is, lamp 352, which is used to illuminate the front of cockpit 42, is positioned in front of second antenna 12 in the longitudinal direction D2, adjacent to second antenna 12. Therefore, second antenna 12 and lamp 352 are less likely to interfere with each other, and the illumination area of ​​lamp 352 can be ensured.

[0117] In addition, such as Figure 11 As shown, the first antenna 11 overlaps with the rear end of the passenger compartment 4 when viewed from above. Specifically, the rear end of the cabin roof 426, which forms the upper surface of the cabin 42 of the passenger compartment 4, is located within the width of the first antenna 11 in the longitudinal direction D2. In other words, the front end of the first antenna 11 is located forward of the rear end of the cabin roof 426, and the rear end of the first antenna 11 is located rearward of the rear end of the cabin roof 426.

[0118] That is, the first antenna 11 is positioned above the cabin 42 of the passenger compartment 4 and as far back as possible. According to this structure, the first antenna 11 is less affected by the passenger compartment 4 (cabin 42), and the reception accuracy of the first antenna 11 for signals (such as GNSS signals) is improved.

[0119] Furthermore, the second antenna 12 overlaps with or connects to the outer perimeter of the passenger compartment 4 when viewed from above. Specifically, the rear end of the cabin roof 426, which forms the upper surface of the passenger compartment 42, is located within the width of the first antenna 11 in the longitudinal direction D2. In other words, the front end of the first antenna 11 is located forward of the rear end of the cabin roof 426, and the rear end of the first antenna 11 is located rearward of the rear end of the cabin roof 426.

[0120] That is, the first antenna 11 is positioned above the cabin 42 of the passenger compartment 4 and as far back as possible. According to this structure, the first antenna 11 is less affected by the passenger compartment 4 (cabin 42), and the reception accuracy of the first antenna 11 for signals (such as GNSS signals) is improved.

[0121] Here, as Figure 12 and Figure 13 As shown, the frame 45 of the cabin 42 that constitutes the passenger compartment 4 has a pair of roof frames 451, 452 and longitudinal frames 453 to 456.

[0122] A pair of canopy frames 451 and 452 are frame components located at both ends of the cockpit canopy 426 in the width direction (left-right direction D3) and respectively having length in the front-rear direction D2. Specifically, canopy frame 451 is located at the right end of the cockpit canopy 426, and canopy frame 452 is located at the left end of the cockpit canopy 426.

[0123] The longitudinal frames 453 to 456 are frame components located at the four corners of the cockpit canopy 426, each having a length in the vertical direction D1. Specifically, longitudinal frame 453 is located at the right rear corner of the cockpit canopy 426, longitudinal frame 454 is located at the left rear corner of the cockpit canopy 426, longitudinal frame 455 is located at the right front corner of the cockpit canopy 426, and longitudinal frame 456 is located at the left front corner of the cockpit canopy 426.

[0124] Thus, in this embodiment, the passenger compartment 4 has a pair of frames (top cover frames 451, 452) on both sides of the fuselage 30 in the width direction (left-right direction D3). Furthermore, the second antenna 12 overlaps with one of the pair of frames (top cover frames 451, 452) when viewed from above. Specifically, as... Figure 11 As shown, the second antenna 12 overlaps with the left top cover frame 452 of the pair of top cover frames 451 and 452. According to this structure, the second antenna 12 is less likely to interfere with other electrical components. Similarly, the first antenna 11 overlaps with the right top cover frame 451 of the pair of top cover frames 451 and 452, so the first antenna 11 is also less likely to interfere with other electrical components.

[0125] Furthermore, the second support portion 512 is configured to be offset forward relative to the longitudinal frame 453 located at the corner of the passenger compartment 4 when viewed from above. Specifically, as... Figure 8 As shown, relative to the longitudinal frame 453 located at the right rear corner of the cockpit 42 among the longitudinal frames 453-456, the second support portion 512 is offset forward in the longitudinal direction D2. Therefore, the second support portion 512 of the first bracket 51 will not interfere with the indicator light 34 and other components mounted on the longitudinal frame 453, and can be configured to minimize the amount of protrusion from the cockpit 42 to the side (right).

[0126] Next, refer to Figure 12 and Figure 13 The wiring paths of the cables (first cable C1 and second cable C2) electrically connected to the first antenna 11 and the second antenna 12 are described. Figure 12 In the diagram, the routing path of the first cable C1 is shown by dashed lines. Figure 13 The path of the second cable C2 is shown in dashed lines. The first cable C1 and the second cable C2 are properly supported in the cabin 42 using cable clamps or the like.

[0127] like Figure 12 As shown, the first cable C1, which is electrically connected to the first antenna 11, is routed along the side of the second support portion 512 of the first bracket 51 opposite to the passenger compartment 4. That is, the first cable C1 extends to the right from the first antenna 11 and is routed downwards along the side (right side surface) of the second support portion 512 of the first bracket 51 opposite to the passenger compartment 42. Thus, the second support portion 512 functions as a shield, making it difficult for noise to enter the first cable C1.

[0128] In addition, such as Figure 13 As shown, the (second) cable C2, which is electrically connected to the second antenna 12, extends along the width direction (left-right direction D3) of the fuselage 30. That is, the second cable C2 has a portion that extends at least along the left-right direction D3. Specifically, the second cable C2 extends rearward from the second antenna 12 located at the left front corner of the cockpit 42, is routed along the top cover frame 452, and is routed from the rear end of the top cover frame 452 toward the first bracket 51 along the left-right direction D3. Thus, the second cable C2 connected to the second antenna 12 located at the left front corner of the cockpit 42 can be routed to the right side of the cockpit 42.

[0129] Furthermore, the (second) cable C2 is routed under the first antenna 11. That is, the second cable C2 is routed along the rear end edge of the cockpit canopy 426 and in the left-right direction D3, thus passing under the first antenna 11 located above the rear end edge of the cockpit canopy 426. As a result, the first antenna 11 can be prevented from being affected by the second cable C2.

[0130] Additionally, the second cable C2 is routed between the first bracket 51 and the cabin 42. Specifically, the second cable C2 is routed between the upper surface of the cabin 42 and the first support 511, and between the second support 512 and the right side surface of the cabin 42.

[0131] Thus, in this embodiment, the system includes a second antenna 12 disposed on the passenger compartment 4 in a manner that separates it from the first antenna 11 when viewed from above, and a second cable C2 electrically connected to the second antenna 12. The second cable C2 is routed between the upper surface of the passenger compartment 4 and the first support portion 511, and between the second support portion 512 and one side surface (right side surface) of the passenger compartment 4. As a result, the second support portion 512 functions as a shield, making it difficult for noise to enter the second cable C2.

[0132] In addition, such as Figure 14 As shown, in the second communication device 22, the cable 223 that electrically connects the device body 221 and the antenna 222 ( Figure 14 (Indicated by dashed lines) It passes through the space between the second support 512 of the first bracket 51 and the cabin 42, and connects to the device body 221. Here, the cable 223 has a sufficient remaining length relative to the distance between the device body 221 and the antenna 222. Therefore, the remaining portion of the cable 223 is fixed in a bundled state, for example, by using a cable tie or other binding method, to a mounting part 514, such as a round steel rod, which is fixed to the back (left side surface) of the second support 512 by a joining method such as welding.

[0133] [3] Variations

[0134] Hereinafter, variations of Embodiment 1 are listed. The variations described below can be appropriately combined and applied.

[0135] Furthermore, the passenger compartment 4 is not limited to a cabin type; for example, it can also be a ceiling-mounted or floor-mounted type. Ceiling-mounted or floor-mounted passenger compartments 4 do not have doors 43, but they are provided with boarding and alighting openings for passengers to get on and off the passenger compartment 4. For example, if it is a floor-mounted passenger compartment 4, there is no structure on the upper side of the boarding and alighting opening, so the boarding and alighting opening is in the form of opening upwards.

[0136] Furthermore, the boarding and alighting openings such as door 43 are not limited to being located on the left side of the passenger compartment 4 as in Embodiment 1. That is, the boarding and alighting openings for passengers to board and alight can be located on at least one side of the passenger compartment 4 in the left-right direction D3, for example, they can also be located on the right side of the passenger compartment 4 or on both sides of the left-right direction D3.

[0137] In addition, the operating machinery 3 does not necessarily have to be "ultra-small rotary type" or "rear ultra-small rotary type".

[0138] Additionally, at least one of the following can be omitted: second antenna 12, first communication device 21, second communication device 22, indicator light 34, light 351, 352, 353, and alarm device 36.

[0139] In addition, the power source of the working machine 3 is not limited to a diesel engine. For example, it can be an engine other than a diesel engine, a motor (electric motor), or a hybrid power source that includes both an engine and a motor (electric motor).

[0140] [Notes on the invention]

[0141] The following is a summary of the invention extracted from the above embodiments. Furthermore, the structures and processing functions described in the following notes can be arbitrarily combined selectively.

[0142] <Note 1>

[0143] A type of work machinery, comprising:

[0144] The aircraft has a passenger compartment for passengers to board;

[0145] The first antenna is mounted on the aforementioned passenger compartment; and

[0146] The first communication device is disposed on one side of the aforementioned passenger compartment in the width direction.

[0147] <Note 2>

[0148] According to the operating machinery described in Note 1, among which,

[0149] The first communication device is located below the first antenna.

[0150] <Note 3>

[0151] According to the operating machinery described in Note 1 or 2, among which,

[0152] The first antenna and the first communication device are located at the same corner of the passenger compartment when viewed from above.

[0153] <Note 4>

[0154] According to any of the operating machines described in Notes 1 to 3, among which,

[0155] The first communication device is located in front of the first antenna.

[0156] <Note 5>

[0157] According to any of the operating machines described in Notes 1 to 4, among which,

[0158] It also has an alarm device, which is located behind the first communication device.

[0159] <Note 6>

[0160] According to any of the operating machines described in Notes 1 to 5, among which,

[0161] It also includes a first bracket, which is supported in the passenger compartment and supports the first antenna.

[0162] The aforementioned first communication device is supported on the aforementioned first bracket.

[0163] <Note 7>

[0164] According to the operating machinery described in Note 6, among which,

[0165] The first bracket has: a first support portion supporting the first antenna and facing the upper surface of the passenger compartment; and a second support portion supporting the first communication device and facing the side surface of one side of the passenger compartment.

[0166] <Note 8>

[0167] According to the operating machinery described in Note 7, among which,

[0168] The second support portion is configured to be offset forward relative to the longitudinal frame located at the corner of the aforementioned passenger compartment when viewed from above.

[0169] <Note 9>

[0170] According to the operating machinery described in Note 7 or 8, among which,

[0171] The first bracket has a recess at the rear end of the second support portion.

[0172] <Note 10>

[0173] According to any of the operating machines described in notes 7 to 9, among which,

[0174] It also includes electrical components, which are installed on the side of the second support that faces the side surface of the passenger compartment.

[0175] <Note 11>

[0176] The operating machinery described in any of Notes 7 to 10 further includes:

[0177] The second antenna is configured on the passenger compartment in a manner that separates it from the first antenna when viewed from above; and

[0178] The second cable is connected to the aforementioned second cable.

[0179] The second cable is routed through the space between the upper surface of the passenger compartment and the first support, and between the second support and the side surface of one side of the passenger compartment.

[0180] <Note 12>

[0181] According to any of the operating machines described in notes 7 to 11, among which,

[0182] The first cable, which is electrically connected to the first antenna, is routed along the side of the second support that is opposite to the passenger compartment.

Claims

1. A type of operating machinery, wherein, have: The aircraft has a passenger compartment for passengers to board; A first antenna is mounted on the passenger compartment; and A first communication device is disposed on one side of the passenger compartment in the width direction.

2. The operating machinery according to claim 1, wherein, The first communication device is located below the first antenna.

3. The operating machinery according to claim 1 or 2, wherein, The first antenna and the first communication device are located at the same corner of the passenger compartment when viewed from above.

4. The operating machinery according to claim 1 or 2, wherein, The first communication device is located in front of the first antenna.

5. The operating machinery according to claim 1 or 2, wherein, It also includes an alarm device, which is located behind the first communication device.

6. The operating machinery according to claim 1 or 2, wherein, It also includes a first bracket, which is supported in the passenger compartment and supports the first antenna. The first communication device is supported on the first bracket.

7. The operating machinery according to claim 6, wherein, The first bracket has: a first support portion supporting the first antenna and facing the upper surface of the passenger compartment; and a second support portion supporting the first communication device and facing the side surface of one side of the passenger compartment.

8. The operating machinery according to claim 7, wherein, The second support is configured to be offset forward relative to the longitudinal frame located at the corner of the passenger compartment when viewed from above.

9. The operating machinery according to claim 7, wherein, The first bracket has a recess at the rear end of the second support.

10. The operating machinery according to claim 7, wherein, It also includes electrical components, which are mounted on the side of the second support that faces the side surface of the passenger compartment.

11. The operating machinery according to claim 7, wherein, It also has: The second antenna is configured on the passenger compartment in a manner that separates it from the first antenna when viewed from above; and The second cable is electrically connected to the second antenna. The second cable is routed through the space between the upper surface of the passenger compartment and the first support, and between the second support and the side surface of one side of the passenger compartment.

12. The operating machinery according to claim 7, wherein, The first cable, which is electrically connected to the first antenna, is routed along the side of the second support that is opposite to the passenger compartment.

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