Work vehicles

Abstract

A work vehicle (1) is provided, which can realize the facilitation and cost reduction of the installation of an obstacle detector (84) and a lamp for detecting an obstacle that becomes a driving obstacle. The work vehicle (1) comprises: a vehicle body (5); an obstacle detector (84) for detecting obstacles around the vehicle body (5); a lamp that lights up around the vehicle body (5); and a mounting bracket (85) mounted on the vehicle body side, the mounting bracket (85) having a mounting body (86), the mounting body (86) including a detector mounting portion (87) for mounting the obstacle detector (84) and a lamp mounting portion for mounting the lamp.

Description

Technical Field

[0001] The present invention relates to a work vehicle. Background Art

[0002] Conventionally, a work vehicle disclosed in Patent Document 1 is known.

[0003] The work vehicle disclosed in Patent Document 1 includes: a detector for detecting obstacles around the vehicle body; a combination lamp formed by combining a plurality of lamps; and a work lamp for illuminating the vehicle body surroundings.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Publication No. 2018-114927 Summary of the invention

[0007] Problems to be solved by the invention

[0008] In the work vehicle disclosed in Patent Document 1, since the sensor for detecting obstacles and the lamp (combination lamp, work lamp) are separately mounted, there are problems such as cumbersome mounting, increased number of parts, and increased cost.

[0009] Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a work vehicle capable of facilitating the installation of a sensor (obstacle detector) and a light for detecting an obstacle and suppressing the cost.

[0010] Solutions to Solve Problems

[0011] A working vehicle according to one embodiment of the present invention comprises: a vehicle body; an obstacle detector, which detects obstacles around the vehicle body; a lamp, which lights up around the vehicle body; and a mounting bracket, which is mounted on the vehicle body side, the mounting bracket having a mounting body, and the mounting body includes a detector mounting portion for mounting the obstacle detector and a lamp mounting portion for mounting the lamp.

[0012] In addition, the work vehicle comprises: a cab mounted on the vehicle body; a stepping board arranged below the cab; and a front pillar located above the stepping board and in front of the cab, and the mounting bracket is mounted on the front pillar.

[0013] The work vehicle includes front wheels provided at the front of the vehicle body and rear wheels provided at the rear of the vehicle body, and the obstacle detector detects obstacles outside the vehicle body in the vehicle width direction and between the front wheels and the rear wheels.

[0014] Furthermore, the lamp includes a combination lamp formed by combining a plurality of lamps and a work lamp for illuminating the periphery of the vehicle body, and the lamp mounting portion includes a first lamp mounting portion for mounting the combination lamp and a second lamp mounting portion for mounting the work lamp.

[0015] In addition, the detector mounting portion is arranged on the outer side of the mounting body in the vehicle width direction, the obstacle detector is installed to detect obstacles on the outer side of the vehicle body in the vehicle width direction, the first light mounting portion is arranged at the front of the mounting body, the working light includes a headlamp for illuminating the front of the vehicle body and a side lamp for illuminating the outer side of the vehicle width direction of the vehicle body, and the second light mounting portion includes: an upper mounting portion, the upper mounting portion is arranged at the upper part of the mounting body and one of the headlamp or the side lamp is installed; and a lower mounting portion, the lower mounting portion is arranged at the lower part of the mounting body and the other of the headlamp or the side lamp is installed.

[0016] In addition, the mounting bracket has a bracket base mounted on the front pillar, and a bracket arm extending forward from the bracket base and supporting the mounting body, the mounting body having a bracket component fixed to the bracket arm, the bracket component having a rear wall portion, an upper wall portion extending forward from an upper portion of the rear wall portion, a lower wall portion extending forward from a lower portion of the rear wall portion, an upper front wall portion extending downward from a front portion of the upper wall portion, and a lower front wall portion extending upward from a front portion of the lower wall portion, the first lamp mounting portion is arranged on the upper front wall portion and the lower front wall portion, the upper mounting portion is arranged on the upper wall portion, and the lower mounting portion is arranged on the lower wall portion.

[0017] In addition, the obstacle detector is composed of a sonar having a transmitting part that transmits sound waves and detects obstacles through the sound waves, the bracket component has a mounting plate that protrudes forward from the upper and lower mid-portions of the rear wall portion, and the detector mounting portion has: a mounting base mounted on the mounting plate, an inclined wall that is inclined upward as it moves from the mounting base toward the outside in the vehicle width direction, and a detector stay fixed to the upper surface side of the inclined wall and on which the obstacle detector is mounted, and the inclined wall has a sending opening in which the transmitting part is arranged.

[0018] In addition, the bracket component has a connecting wall portion connecting the rear wall portion and the lower front wall portion, the bracket arm is arranged on the inner side of the bracket component in the vehicle width direction and fixed to the connecting wall portion, and the mounting body has a cover component, and the cover component includes: a back wall mounted on the back side of the rear wall portion, a first side wall extending forward from the outer end of the back wall in the vehicle width direction, and a second side wall extending forward from the inner end of the back wall in the vehicle width direction, the first side wall has a first cutout portion, the first cutout portion is open to the front and the detector mounting portion can be inserted from the front side when the obstacle detector is installed, and the second side wall has a second cutout portion, the second cutout portion is open to the front and the bracket arm can be inserted from the front side.

[0019] In addition, the plurality of lamps constituting the combination lamp include a position lamp for notifying the surrounding area of ​​the vehicle width and a turn lamp for indicating the direction in which the vehicle body turns.

[0020] Effects of the Invention

[0021] According to the above configuration, by providing the detector mounting portion and the light mounting portion on the mounting body, the obstacle detector and the light can be collectively mounted on one mounting body, thereby facilitating the installation of these devices and reducing the cost associated with the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of the working vehicle.

[0023] Figure 2 It is a top view of the working vehicle.

[0024] Figure 3 This is a structural diagram showing a part of the structure of a work vehicle and a control system block diagram.

[0025] Figure 4 This is a perspective view of the cab frame as viewed from the front side.

[0026] Figure 5 This is a perspective view of the cab frame as viewed from the back side.

[0027] Figure 6 It is a top view of the outer roof on the front side with the cab frame omitted.

[0028] Figure 7 This is a side view showing a portion of the positional relationship between the roof, the driver's seat, and the steering wheel in cross section.

[0029] Figure 8 It is a side sectional view showing the internal structure of the roof.

[0030] Fig. 9It is a front cross-sectional view showing the internal structure of the roof.

[0031] Fig.10 It is a side cross-sectional view showing a state where the movable plate is located at a first position for closing the opening.

[0032] Fig.11 It is a side cross-sectional view showing a state where the movable plate is located at the second position for opening the opening.

[0033] Fig.12 It is a plan view showing a state where the movable plate is located at a first position for closing the opening.

[0034] Fig.13 It is a plan view showing a state where the movable plate is located at the second position for opening the opening.

[0035] Fig.14 It is a perspective view showing the left front portion of the inner roof, showing the movable panel and the guide mechanism.

[0036] Fig.15 This is a perspective view showing the installation structure of the obstacle detector, combination lamp, and work lamp.

[0037] Fig.16 It is a rear cross-sectional view showing the installation structure of the obstacle detector, combination lamp, and work lamp.

[0038] Fig.17 It is a side sectional view showing the installation structure of the obstacle detector, combination lamp, and work lamp.

[0039] Fig.18 is an exploded perspective view of the mounting bracket.

[0040] Fig.19 It is a perspective view showing the mounting structure of the mounting bracket to the front pillar.

[0041] Fig. 20 It is a perspective view showing another embodiment of the mounting structure of the obstacle detector, the combination lamp, and the work lamp. DETAILED DESCRIPTION

[0042] Hereinafter, one embodiment of the present invention will be described with reference to the drawings as appropriate.

[0043] Figure 1 It is a schematic side view showing the overall structure of the work vehicle 1 according to the present embodiment. Figure 2 It is a schematic plan view of the work vehicle 1. In this embodiment, a tractor is exemplified as the work vehicle 1.

[0044] In this embodiment, Figure 1 , Figure 2 The arrow A1 direction (the forward direction of the tractor 1) is taken as the front. Figure 1 , Figure 2 The arrow A2 direction (the backward direction of the tractor 1) is taken as the rear direction. Figure 1 , Figure 2 The arrow A3 direction is described as the front-rear direction. Figure 1 The front side is the left side ( Figure 2 direction of arrow B1), Figure 1 The inside is the right side ( Figure 2 In addition, the horizontal direction perpendicular to the front-rear direction A3 is defined as the width direction of the tractor 1 (working vehicle), that is, the vehicle width direction ( Figure 2 The direction from the center of the tractor 1 in the vehicle width direction B3 toward the right or toward the left is described as the vehicle width direction outer direction. In other words, the vehicle width direction outer direction refers to a direction away from the center of the tractor 1 in the width direction in the vehicle width direction B3. The direction opposite to the vehicle width direction outer direction is described as the vehicle width direction inner direction. In other words, the vehicle width direction inner direction refers to a direction close to the center of the tractor 1 in the width direction in the vehicle width direction B3.

[0045] <Overall structure of the tractor>

[0046] like Figure 1 , Figure 2 As shown, the tractor 1 has a body 5, and the body 5 has a power machine 6 and a transmission box 7. The power machine 6 is a diesel engine. The power machine 6 can be a gasoline engine or an electric motor, or a hybrid type having an engine and an electric motor. The power machine 6 is located at the front of the tractor 1 and is covered by a hood 8.

[0047] The transmission case 7 is composed of, for example, a flywheel housing that accommodates a flywheel, a clutch housing that accommodates a clutch that can intermittently transmit the power of the power machine 6 transmitted via the flywheel, and a transmission that accommodates a speed change device that changes the power transmitted via the clutch.

[0048] like Figure 1 , Figure 2 As shown, the vehicle body 5 is supported to be able to travel by, for example, a wheel-type travel device 4 including a plurality of wheels 2 and 3. The plurality of wheels 2 and 3 include front wheels 2 (2L, 2R) provided on the left and right sides of the front portion of the vehicle body 5 and rear wheels 3 (3L, 3R) provided on the left and right sides of the rear portion of the vehicle body 5.

[0049] like Figure 1As shown, the tractor 1 has a cab 9 mounted on the rear part of the vehicle body 5. A driver's seat 10 for the operator to sit is provided at the rear part of the interior of the cab 9. A steering wheel (steering wheel) 11 for steering the front wheels 2 (2L, 2R) is provided in front of the driver's seat 10. A front glass 12 is provided on the front surface of the cab 9. A rear glass is provided at the rear of the cab 9. A boarding and alighting port 13 for the operator to board and alight and a boarding and alighting door 14 for opening and closing the boarding and alighting port 13 are provided on the side (left side and right side) of the cab 9. A rear side glass 15 is provided behind the boarding and alighting door 14. In addition, the cab 9 has a roof 16 forming a top at the upper part. A boarding and alighting pedal 17 for the operator to step on when boarding and alighting relative to the cab 9 is arranged below the cab 9. The boarding and alighting pedal 17 is provided below each boarding and alighting door 14 on the left and right.

[0050] Here, refer to Figure 3 , a schematic structure of a travel system and a schematic structure of a control system of the tractor 1 are described.

[0051] like Figure 3 As shown, the tractor 1 is provided with a steering device 18. The steering device 18 is a device capable of manual steering in which the vehicle body 5 is steered by the operation of the operator and automatic steering in which the vehicle body 5 is steered automatically without relying on the operation of the operator. The steering device 18 has a steering wheel 11 and a rotating shaft (steering shaft) 19 that rotates with the rotation of the steering wheel 11. In addition, the steering device 18 has an auxiliary mechanism (power steering mechanism) 20 that assists the steering of the steering wheel 11. In detail, the auxiliary mechanism 20 includes a hydraulic pump 21, a control valve 22 to which the working oil discharged from the hydraulic pump 21 is supplied, and a steering cylinder 23 that is operated by the control valve 22. The control valve 22 is, for example, a 3-position switching valve that can be switched by the movement of a spool or the like, and is switched corresponding to the steering direction (rotation direction) of the rotating shaft 19. In addition, the control valve 22 is also an electromagnetic valve that operates based on a control signal. The steering cylinder 23 is connected to an arm (knuckle arm) 24 that changes the direction of the front wheel 2.

[0052] When the operator holds the steering wheel 11 to operate in one direction or the other, the switching position and the opening of the control valve 22 are switched corresponding to the rotation direction of the steering wheel 11, and the piston rod of the steering cylinder 23 moves to the left or right according to the switching position and the opening of the control valve 22. In this way, the steering direction (steering direction) of the front wheel 2 can be changed. That is, the vehicle body 5 can change the direction of travel to the left or right by manually steering the steering wheel 11. It should be noted that the above-mentioned steering device 18 is an example and is not limited to the above-mentioned structure.

[0053] like Figure 3As shown, the tractor 1 includes a control device 26. The control device 26 includes a microprocessor including a CPU (Central Processing Unit) and an EEPROM (Electrically Erasable Programmable Read-Only Memory).

[0054] The control device 26 performs various controls on the tractor 1. A state detection device 27 for detecting the driving state of the tractor 1 is connected to the control device 26. The state detection device 27 is, for example, a device for detecting the state of the travel system, for example, detecting the state of a crankshaft sensor, a cam sensor, an engine rotation sensor, an acceleration sensor, a vehicle speed sensor, a steering angle sensor, a position detection device described later, and the like. It should be noted that the state detection device 27 may detect the state of a lifting lever detection sensor, a PTO rotation detection sensor, and the like in addition to the state of the travel system. The control device 26 controls the travel system and the working system in the tractor 1. For example, the control device 26 controls the rotation speed of the power machine 6 (engine), the vehicle speed, the steering angle of the steering device 18, and the like based on the detection state detected by the state detection device 27. In addition, the state detection device 27 controls the lifting and lowering of the lifting device for lifting and lowering the working device (for example, a ground working device such as a tiller) installed on the tractor 1, the PTO rotation speed, and the like based on the detection state detected by the state detection device 27.

[0055] The control device 26 is connected to the transmission device 60, the forward / reverse switching device 61, the PTO clutch 62, and the brake device 63. The control device 26 is connected to the transmission device 60, the forward / reverse switching device 61, the PTO clutch 62, and the brake device 63 via an in-vehicle LAN or communication line such as a CAN (Controller Area Network). Thus, the control device 26 can control the operation of the transmission device 60, the forward / reverse switching device 61, the PTO clutch 62, and the brake device 63.

[0056] The control device 26 is connected to a position detection device 30 that detects the position of the vehicle body 5 (tractor 1). The control device 26 can obtain the position detected by the position detection device 30. The position detection device 30 is a device that detects its own position (including positioning information including latitude and longitude) through a satellite positioning system (positioning satellite). That is, the position detection device 30 receives a reception signal (position of the positioning satellite, transmission time, correction information, etc.) transmitted from the positioning satellite, and detects the position (for example, latitude, longitude) based on the reception signal.

[0057] The position detection device 30 uses a known GPS (Global Positioning System) as an example of a global navigation satellite system (GNSS) to obtain the position and orientation of the vehicle body 5. In the present embodiment, an RTK-GPS suitable for positioning of a mobile body is used.

[0058] like Figure 3 As shown, the position detection device 30 includes a receiver 31 , a radio 32 , and an inertial measurement unit (IMU: Inertial Measurement Unit) 33 .

[0059] The receiver 31 has an antenna and the like, and receives a reception signal transmitted from a positioning satellite.

[0060] The wireless device 32 has an antenna 32A and communicates with a base station (reference station) installed at a known position. The base station transmits positioning data (correction information) obtained by receiving radio waves from a positioning satellite to the position detection device 30. The position detection device 30 receives the radio waves (signals) transmitted from the positioning satellite and the positioning data (signals) transmitted from the base station, and detects its own position (latitude, longitude) based on the positioning data obtained by receiving the radio waves from the positioning satellite and the positioning data from the base station.

[0061] The inertial measurement device 33 includes an acceleration sensor for detecting acceleration, a gyro sensor for detecting angular velocity, etc. The inertial measurement device 33 can detect the roll angle, pitch angle, yaw angle, etc. of the vehicle body 5 .

[0062] The control device 26 can control the automatic travel of the tractor 1 (vehicle body 5) (automatic travel control). The control device 26 can switch between an automatic travel mode and a manual travel mode.

[0063] In the case of the automatic driving mode, the control device 26 sets the switching position and opening of the control valve 22 in such a manner that at least the driving position of the vehicle body 5 (the position detected by the position detection device 30) coincides with the pre-set driving route (driving path). Specifically, in the case of the automatic driving mode, the control device 26 compares the driving position of the vehicle body 5 with the position (scheduled driving position) indicated by the driving route, and when the driving position coincides with the scheduled driving position, the steering angle and steering direction (steering angle and steering direction of the front wheels 2) of the steering wheel 11 in the steering device 18 are maintained without changing (the opening and switching position of the control valve 22 are maintained without changing). In addition, when the driving position does not coincide with the scheduled driving position, the control device 26 changes the steering angle and / or steering direction of the steering wheel 11 in the steering device 18 (changes the opening and / or switching position of the control valve 22) so that the deviation (offset) between the driving position and the scheduled driving position is zero.

[0064] It should be noted that, in the above-mentioned embodiment, the control device 26 changes the steering angle of the steering device 18 based on the deviation between the driving position and the planned driving position in the automatic driving control, but it is not limited to this. For example, when the direction of the driving route is different from the direction of the travel direction (driving direction) of the tractor 1 (body 5) (the direction of the body 5), the control device 26 may also set the steering angle in such a way that the direction of the body 5 is consistent with the direction of the driving route. In addition, the control device 26 may also set the final steering angle in the automatic driving control based on the steering angle calculated based on the deviation (position deviation) and the steering angle calculated based on the direction deviation. The setting of the steering angle in the automatic driving control in the above-mentioned embodiment is an example and is not limited.

[0065] The control device 26 is connected to a communication antenna 34 and a transmitter 35. The communication antenna 34 wirelessly communicates various information such as a start command and a stop command (including a temporary stop) of automatic travel with a remote operating element that is remotely operated from a position away from the tractor 1. The transmitter 35 is a wireless communication device that transmits various signals via a wireless communication network established with a wireless communication terminal such as a mobile device or a personal computer.

[0066] <Obstacle Detection Unit, etc.>

[0067] like Figure 3As shown in FIG. 1 , the tractor 1 includes an obstacle detection unit 36 ​​for detecting obstacles that become obstacles to the driving. The obstacle detection unit 36 ​​includes a sonar unit 37 including one or more sonars (obstacle detectors) for detecting obstacles around the vehicle body 5 by sound waves (ultrasound waves); and a laser unit 38 including one or more laser scanners (obstacle detectors) for detecting obstacles around the vehicle body 5 by light waves. In addition, the obstacle detection unit 36 ​​may include a camera unit 39 including one or more cameras (video cameras) for photographing the surroundings of the vehicle body 5.

[0068] For example, two sonars are provided at the front, rear, left, and right sides of the tractor 1, respectively, to detect obstacles existing at close range in the substantially entire circumference of the vehicle body 5. For example, two laser scanners are provided at the front of the tractor 1, and one is provided at the rear, to detect obstacles existing at close range to long range in front of and behind the vehicle body 5. One camera is provided at the front, rear, left, and right sides of the upper portion of the cab 9, respectively, to capture images of the entire surrounding area of ​​the vehicle body 5.

[0069] It should be noted that the obstacle detector may also be a sensor other than sonar or laser scanner (ranging sensor).

[0070] Furthermore, a plurality of detection information processing devices 40 , an image processing device 41 , and a monitoring control device (referred to as a monitoring ECU) 42 are connected to the control device 26 .

[0071] In the present embodiment, three of the plurality of detection information processing devices 40 are provided (a first processing device 40A, a second processing device 40B, and a third processing device 40C). The sonar unit 37 is connected to the detection information processing device 40, and each sonar sends information on detected obstacles to the detection information processing device 40. The detection information processing device 40 performs processing related to the detection information from the sonar (obstacle detector). Specifically, the detection information processing device 40 obtains the information detected by the sonar, and performs a determination process on whether the obstacle is close to the vehicle body 5 based on the detection information from each sonar. In addition, each detection information processing device 40 performs a determination process on whether the obstacle is close to the vehicle body 5 based on the time from the transmission to the reception of the ultrasonic wave of each sonar, and outputs the determination result to the control device 26.

[0072] The laser unit 38 is connected to the control device 26 . The laser scanner determines whether an obstacle is approaching at a close distance to the vehicle body 5 based on the time from irradiation of laser light to reception of laser light, and outputs the determination result to the control device 26 .

[0073] The camera unit 39 is connected to an image processing device 41 , and the image processing device 41 processes the image captured by the camera and outputs the result to the control device 26 .

[0074] The monitoring ECU 42 is composed of a CPU, an electric circuit, an electronic circuit, etc., and obtains the obstacle detection result from the control device 26, and controls the automatic travel based on the obstacle detection result. For example, the automatic travel is continued when the obstacle detection unit 36 ​​does not detect an obstacle, and the automatic travel is stopped when the obstacle detection unit 36 ​​detects an obstacle. More specifically, when the obstacle detection unit 36 ​​detects an obstacle, the monitoring ECU 42 stops the automatic travel by stopping the tractor 1 when the distance between the obstacle and the tractor 1 is less than a predetermined distance.

[0075] As described above, the monitoring ECU 42 controls the operation of the tractor 1 (vehicle body 5) based on the processing (determination) of the detection information processing device 40. Specifically, the monitoring ECU 42 controls the operation to avoid the tractor 1 (vehicle body 5) from colliding with an obstacle based on the determination of the detection information processing device 40.

[0076] Here, the control executed by the monitoring ECU 42 when the obstacle detection unit 36 ​​detects an obstacle (when it is determined that the obstacle is approaching the vehicle body 5 ) will be described in more detail.

[0077] In this case, the monitoring ECU 42 controls the operation of the transmission 60, the forward / reverse switching device 61, the PTO clutch 62, and the brake device 63 via the control device 26 connected to the monitoring ECU 42. Specifically, the monitoring ECU 42 operates the transmission 60 to the deceleration side to reduce the vehicle speed. In addition, the monitoring ECU 42 switches the forward / reverse switching device 61 to a neutral state and operates the brake device 63. As a result, the automatic travel of the tractor 1 stops. In addition, the monitoring ECU 42 switches the PTO clutch 62 to a disconnected state to cut off the power transmission from the PTO shaft of the tractor 1 to the working device. As a result, the drive of the working device stops.

[0078] <Structure of the cab frame, etc.>

[0079] like Figure 4 , Figure 5 As shown, the cab 9 has a cab frame 45 constituting the structure of the cab 9. The cab frame 45 has a front pillar 46, a vehicle body center pillar (side pillar) 47, a rear pillar 48, and an upper frame 49.

[0080] The front pillar 46 is located above the step 17 (at a position higher than the step 17) and is located in the front part of the cab 9. The front pillar 46 includes a first front pillar 46L and a second front pillar 46R. The first front pillar 46L is located on one side (left side) of the front part of the cab frame 45 (cab 9) in the vehicle width direction B3. The second front pillar 46R is located on the other side (right side) of the front part of the cab frame 45 (cab 9) in the vehicle width direction B3. That is, the cab 9 has the front pillar 46 at the front. The front glass 12 is provided between the first front pillar 46L and the second front pillar 46R.

[0081] The vehicle body center pillar 47 includes a first vehicle body center pillar 47L and a second vehicle body center pillar 47R. The first vehicle body center pillar 47L is located in the middle of the front-to-back direction of one side surface (left side surface) of the cab frame 45. The second vehicle body center pillar 47R is located in the middle of the front-to-back direction of the other side surface (right side surface) of the cab frame 45. The boarding and landing doors 14 are respectively provided between the first front pillar 46L and the first vehicle body center pillar 47L and between the second front pillar 46R and the second vehicle body center pillar 47R.

[0082] The rear pillar 48 includes a first rear pillar 48L and a second rear pillar 48R. The first rear pillar 48L is located on one side of the back of the cab frame 45. The second rear pillar 48R is located on the other side of the back of the cab frame 45. A rear glass is provided between the first rear pillar 48L and the second rear pillar 48R. A rear side glass 15 is provided between the first vehicle body center pillar 47L and the first rear pillar 48L and between the second vehicle body center pillar 47R and the second rear pillar 48R.

[0083] The roof 16 is mounted on the upper frame 49. Thus, the roof 16 is supported by the upper frame 49. The upper frame 49 includes a front upper frame 49A, a first side upper frame 49L, a second side upper frame 49R, and a rear upper frame 49B.

[0084] The front upper frame 49A connects the upper parts of the first front pillar 46L and the second front pillar 46R. The first side upper frame 49L connects the upper parts of the first front pillar 46L and the first vehicle body center pillar 47L. The second side upper frame 49R connects the upper parts of the second front pillar 46R and the second vehicle body center pillar 47R. The rear upper frame 49B connects the upper parts of the first vehicle body center pillar 47L and the second vehicle body center pillar 47R, and the upper parts of the first rear pillar 48L and the second rear pillar 48R.

[0085] The front upper frame 49A supports the front portion of the roof 16. The rear upper frame 49B supports the rear portion of the roof 16. The first side upper frame 49L supports the left side of the roof 16 in the vehicle width direction (the width direction of the vehicle body 5). The second side upper frame 49R supports the right side of the roof 16 in the vehicle width direction.

[0086] like Figure 4As shown, the upper frame 49 has a connecting frame 50 at the front portion that is arranged across the first side upper frame 49L and the second side upper frame 49R. One side of the connecting frame 50 is connected to the front upper frame 49A through the first reinforcing frame 51L, and the other side is connected to the front upper frame 49A through the second reinforcing frame 51R. The upper frame 49 has a mounting frame 52 at the rear portion that is mounted between the left and right front ends of the rear upper frame 49B.

[0087] The lower parts of the first front pillar 46L and the second front pillar 46R are connected to each other through a frame member 54. The lower parts of the first front pillar 46L and the first center pillar 47L are connected to each other through a frame member 55L and a frame member 56L. The lower parts of the second front pillar 46R and the second center pillar 47R are connected to each other through a frame member 55R and a frame member 56R. The lower parts of the first center pillar 47L and the second center pillar 47R are connected to each other through a frame member 57.

[0088] like Figure 5 , Figure 6 As shown, the mounting frame 53 is arranged across the first reinforcement frame 51L and the second reinforcement frame 51R. The detection information processing device 40 (the first processing device 40A, the second processing device 40B, and the third processing device 40C), the image processing device 41, and the monitoring ECU 42 are installed on the mounting frame 53 and are centrally arranged side by side. The first processing device 40A, the second processing device 40B, and the third processing device 40C each have a plate-shaped mounting portion 401. Each mounting portion 401 is triangular in a plan view. The mounting portion 401 is mounted on the mounting frame 53 by mounting parts such as bolts. Thus, the first processing device 40A, the second processing device 40B, and the third processing device 40C are mounted on the mounting frame 53.

[0089] The mounting frame 53 functions as a support body that supports the detection information processing device 40 , the image processing device 41 , and the monitoring ECU 42 in a storage space S3 described later.

[0090] The mounting frame (support body) 53 is mounted on the first reinforcing frame 51L on one side (left side) in the vehicle width direction, and is mounted on the second reinforcing frame 51R on the other side (right side) in the vehicle width direction. The mounting frame (support body) 53 is detachably mounted to the first reinforcing frame 51L and the second reinforcing frame 51R by means of mounting members 69 such as bolts and nuts.

[0091] As described above, the detection information processing device 40 (the first processing device 40A, the second processing device 40B, the third processing device 40C), the image processing device 41, and the monitoring ECU 42 are installed on the mounting frame (support body) 53. Thus, the detection information processing device 40, the image processing device 41, and the monitoring ECU 42 can be concentrated and assembled in the cab 9 together with the mounting frame (support body) 53. Thus, the time for the assembly operation can be shortened. In addition, the layout of the wiring between the devices (the detection information processing device 40 (the first processing device 40A, the second processing device 40B, the third processing device 40C), the image processing device 41, and the monitoring ECU 42) can be simplified to facilitate the wiring.

[0092] like Figure 6 As shown, the detection information processing device 40 (the first processing device 40A, the second processing device 40B, and the third processing device 40C), the image processing device 41, and the monitoring ECU 42 are arranged in the vehicle width direction. In the case of this embodiment, the monitoring ECU 42, the image processing device 41, and the detection information processing device 40 are arranged in sequence from one side (left side) to the other side (right side) in the vehicle width direction. A plurality of (three) detection information processing devices 40 are arranged in the vehicle width direction and staggered in the front-rear direction. Thus, interference between the mounting parts 401 of the first processing device 40A, the second processing device 40B, and the third processing device 40C can be avoided, so that the first processing device 40A, the second processing device 40B, and the third processing device 40C can be arranged close to each other in the vehicle width direction. Therefore, even if a plurality of detection information processing devices 40 are arranged in the vehicle width direction, the space occupied by the plurality of detection information processing devices 40 in the vehicle width direction can be reduced.

[0093] As in the present embodiment, when there are three or more detection information processing devices 40, the three or more detection information processing devices 40 are arranged in a manner shifting from the front to the rear (or from the rear to the front) as they move from one side to the other side in the vehicle width direction. That is, the three or more detection information processing devices 40 are arranged in a straight line in the inclined direction (the direction inclined relative to the front-rear direction and the vehicle width direction) when viewed from above.

[0094] The monitoring ECU 42 is arranged in an inclined direction when viewed from above. Specifically, the monitoring ECU 42 is arranged so as to shift from one side (left side) to the other side (right side) in the vehicle width direction as it moves from the front end portion toward the rear end portion of the monitoring ECU 42. Thus, wiring connected to the monitoring ECU 42 can be easily performed.

[0095] The position detection device 30 is arranged in front of the center of the front upper frame 49A in the vehicle width direction B3. The position detection device 30 is arranged in front of the roof 16 and in front of the detection information processing device 40, the image processing device 41, and the monitoring ECU 42. The position detection device 30 is arranged at a position closest to the image processing device 41 among the detection information processing device 40, the image processing device 41, and the monitoring ECU 42. The transmitter 35 is arranged on one side (left side) of the position detection device 30. The communication antenna 34 is arranged on one side (left side) of the transmitter 35. The position detection device 30, the transmitter 35, and the communication antenna 34 are arranged in a row in the vehicle width direction in front of the roof 16. The position detection device 30, the transmitter 35, and the communication antenna 34 are mounted on a support frame 58 that spans from the upper part of the first front pillar 46L to the upper part of the second front pillar 46R. One end side of the support frame 58 is mounted on the first front pillar 46L, and the other end side is mounted on the second front pillar 46R.

[0096] <Roof structure>

[0097] like Figure 7 to Figure 9 As shown, the roof 16 includes an inner roof 16A, an outer roof 16B, and a movable panel 16C.

[0098] The inner roof 16A is arranged at the lower part of the roof 16. The front part of the inner roof 16A is mounted on the lower part of the front upper frame 49A. The rear part of the inner roof 16A is mounted on the lower part of the rear upper frame 49B. The left part of the inner roof 16A is mounted on the lower part of the first side upper frame 49L. The right part of the inner roof 16A is mounted on the lower part of the second side upper frame 49R.

[0099] like Figure 6 to Figure 13 As shown, the inner roof 16A has an opening 65 at the front. Figure 6 , Fig.12 , Fig.13 As shown, the opening 65 is formed into a rectangular shape that is longer in the vehicle width direction than in the front-rear direction when viewed from above. The length of the opening 65 in the vehicle width direction is longer than half the length of the front end of the roof 16 in the vehicle width direction. Figure 7 As shown in FIG. 1 , the opening 65 is disposed above the steering wheel 11 and is located forward of the driver's seat 10 in the front-rear direction. The opening 65 faces the interior of the cab 9 and is accessible from the interior of the cab 9.

[0100] The outer roof 16B is arranged so as to cover the upper part of the inner roof 16A. The outer roof 16B is composed of an upper member 16B1 and a lower member 16B2. The upper member 16B1 constitutes the upper surface of the outer roof 16B. The lower member 16B2 constitutes the lower surface of the outer roof 16B. The upper member 16B1 and the lower member 16B2 are integrally formed by welding, bolting, etc. A space S1 is formed between the upper member 16B1 and the lower member 16B2.

[0101] like Figure 7 , Figure 8 As shown in FIG. 1 , a raised portion 66 that is raised upward is formed at the front portion of the lower member 16B2. The raised portion 66 is provided above the opening 65. The raised portion 66 is raised toward the upper member 16B1 and is closer to the upper member 16B1 than other portions of the lower member 16B2. As a result, the space S1 between the upper member 16B1 and the lower member 16B2 is smaller at the front portion of the roof 16 than at the rear portion of the roof 16.

[0102] like Figure 8 , Fig. 9 As shown, the raised portion 66 extends longer in the vehicle width direction than in the front-rear direction. The length of the raised portion 66 in the vehicle width direction is formed to be longer than the length of the opening portion 65 in the vehicle width direction. The length of the raised portion 66 in the front-rear direction is formed to be substantially the same as the length of the opening portion 65 in the front-rear direction.

[0103] The front part of the outer roof 16B is mounted on the upper part of the front upper frame 49A. The rear part of the outer roof 16B is mounted on the upper part of the rear upper frame 49B. The left part of the outer roof 16B is mounted on the upper part of the first side upper frame 49L. The right part of the outer roof 16B is mounted on the upper part of the second side upper frame 49R.

[0104] like Figure 7 to Figure 9 As shown, a space S2 is formed between the outer roof 16B and the inner roof 16A. The space S2 is formed below the lower member 16B2 of the outer roof 16B and above the inner roof 16A.

[0105] The front portion of the space S2 between the outer roof 16B and the inner roof 16A forms a storage space S3 for storing the detection information processing device 40, the image processing device 41, and the monitoring ECU 42. The storage space S3 is provided in the front portion inside the roof 16. The storage space S3 is located above the opening 65. Since the raised portion 66 is formed above the opening 65, the storage space S3 becomes a space that is expanded upward compared to other portions (the rear portion, the middle portion in the front-rear direction) of the space S2. That is, the storage space S3 is formed above the opening 65.

[0106] like Figure 8 , Fig. 9 As shown in FIG. 1 , the length of the storage space S3 in the vehicle width direction is formed to be longer than the length of the opening 65 in the vehicle width direction. The length of the storage space S3 in the front-to-back direction is formed to be substantially the same as the length of the opening 65 in the front-to-back direction. The storage space S3 is formed at a position overlapping with the opening 65 in the vertical direction. Therefore, in a state where the opening 65 is not closed by the movable panel 16 (see FIG. 1 ), the storage space S3 is formed to be substantially the same as the length of the opening 65 in the front-to-back direction. Fig.11 ) below, the storage space S3 can be reached from the opening 65.

[0107] like Figure 12 to Figure 14 As shown in FIG. 1 , a guide mechanism 70 is provided on the upper surface of the inner roof 16A to support the movable panel 16C so as to be slidable. The guide mechanism 70 guides the sliding movement of the movable panel 16C when the movable panel 16C is slidably moved in the front-rear direction.

[0108] The guide mechanism 70 includes a first guide member 71L and a second guide member 71R. The first guide member 71L is provided on one side (left side) of the inner roof 16A in the vehicle width direction. The second guide member 71R is provided on the other side (right side) of the inner roof 16A in the vehicle width direction. The first guide member 71L and the second guide member 71R are each formed by bending a rod-shaped member.

[0109] The first guide component 71L has a first rail portion 71La, a first front end portion 71Lb, and a first rear end portion 71Lc. The first rail portion 71La extends in the front-to-rear direction. The first front end portion 71Lb is bent from the front end of the first rail portion 71La and extends to the outer side (left side) in the vehicle width direction. The first rear end portion 71Lc is bent from the rear end of the first rail portion 71La and extends to the outer side (left side) in the vehicle width direction. The first front end portion 71Lb and the first rear end portion 71Lc are fixed to the upper surface of the inner roof 16A. As a result, the position of the first guide component 71L in the front-to-rear direction is fixed.

[0110] The second guide component 71R has a second rail portion 71Ra, a second front end portion 71Rb, and a second rear end portion 71Rc. The second rail portion 71Ra extends in the front-to-rear direction in parallel with the first rail portion 71La. The second front end portion 71Rb is bent from the front end of the second rail portion 71Ra and extends to the outside (right side) in the vehicle width direction. The second rear end portion 71Rc is bent from the rear end of the second rail portion 71Ra and extends to the outside (right side) in the vehicle width direction. The second front end portion 71Rb and the second rear end portion 71Rc are fixed to the upper surface of the inner roof 16A. As a result, the position of the second guide component 71R relative to the inner roof 16A in the front-to-rear direction is fixed.

[0111] The movable plate 16C is a plate having a size and shape capable of covering the opening 65 from above. Fig.12 , Fig.13 As shown in FIG. 1 , the movable plate 16C is formed into a rectangular shape that is longer in the vehicle width direction than in the front-rear direction in a plan view. The movable plate 16C has a support portion (a first support portion 72L and a second support portion 72R) supported by the guide mechanism 70. The first support portion 72L is provided at the left edge of the movable plate 16C and is supported by the first rail portion 71La of the first guide member 71L. The second support portion 72R is provided at the right edge of the movable plate 16C and is supported by the second rail portion 71Ra of the second guide member 71R.

[0112] Since the first support portion 72L and the second support portion 72R have the same structure, the structure of the first support portion 72L will be described below as a representative.

[0113] like Fig.14 As shown, the first support portion 72L has an upper support portion 72La and a lower support portion 72Lb. The upper support portion 72La abuts against the upper portion of the first rail portion 71La. The lower support portion 72Lb abuts against the lower portion of the first rail portion 71La. The first rail portion 71La is supported by being clamped from the upper side and the lower side by the upper support portion 72La and the lower support portion 72Lb. The upper support portion 72La and the lower support portion 72Lb are arranged alternately in the front-to-back direction. In the case of this embodiment, two upper support portions 72La and two lower support portions 72Lb are arranged in sequence from the front to the back, with an upper support portion 72La, a lower support portion 72Lb, an upper support portion 72La, and a lower support portion 72Lb.

[0114] With the above structure, the first support portion 72L cannot move in the up-down direction relative to the first rail portion 71La, but is supported to be movable in the front-back direction along the first rail portion 71La. The second support portion 72R has the same structure as the first support portion 72L, cannot move in the up-down direction relative to the second rail portion 71Ra, but is supported to be movable in the front-back direction along the second rail portion 71Ra.

[0115] Thus, the movable plate 16C can move in the front-rear direction along the first rail portion 71La and the second rail portion 71Ra. The movable plate 16C can move in the front-rear direction and can move to the first position (see Fig.10 , Fig.12 ) and the second position of the open opening 65 (refer to Fig.11 , Fig.13 ).

[0116] like Figure 12 to Figure 14 As shown in FIG. 1 , an upper protrusion 67 protruding downward is provided on the upper surface of the front portion of the inner roof 16A. Fig.12 As shown, when the movable plate 16C is moved forward, the front end of the movable plate 16C hits the upper protrusion 67, thereby preventing the movable plate 16C from moving forward. As a result, the front end position (first position) of the movable plate 16C is determined.

[0117] like Fig.12 , Fig.13 As shown, a lower protrusion 68 protruding downward is provided on the lower surface of the front portion of the movable plate 16C. Fig.13As shown, when the movable plate 16C is moved rearward, the lower protrusion 68 hits the rear edge 65a of the opening 65, thereby preventing the movable plate 16C from moving rearward. Thus, the rear end position (second position) of the movable plate 16C is determined.

[0118] The movable plate 16C is placed in the first position (see Fig.12 ) and the second position (reference Fig.13 ) can be manually moved in the front-rear direction by inserting a hand from the inside of the cab 9 into the opening 65. However, a structure in which the movable plate 16C is moved by the power of a driving source such as a motor may also be adopted.

[0119] like Figure 6 to Figure 11 As shown, the detection information processing device 40 , the image processing device 41 , and the monitoring ECU 42 are arranged in the storage space S3 . Thus, the detection information processing device 40 , the image processing device 41 , and the monitoring ECU 42 are arranged in the front part of the roof 16 .

[0120] The detection information processing device 40, the image processing device 41 and the monitoring ECU 42 are arranged above the opening 65. Figure 6 As shown, the detection information processing device 40, the image processing device 41, and the monitoring ECU 42 overlap with the opening 65 in a plan view. Figure 8 As shown, the detection information processing device 40, the image processing device 41, and the monitoring ECU 42 are located above the movable panel 16C when the movable panel 16C is located at the first position (closed position).

[0121] like Figure 6 As shown, the mounting frame (support body) 53 supports the detection information processing device 40, the image processing device 41 and the monitoring ECU 42 above the opening portion 65. The mounting frame (support body) 53 extends from one side to the other side in the vehicle width direction across the opening portion 65. In other words, the mounting frame (support body) 53 extends above the opening portion 65 in a manner that crosses the opening portion 65 in the vehicle width direction. As a result, the detection information processing device 40, the image processing device 41 and the monitoring ECU 42 supported by the mounting frame (support body) 53 are arranged in the vehicle width direction above the opening portion 65. That is, the mounting frame (support body) 53 supports the detection information processing device 40, the image processing device 41 and the monitoring ECU 42 in a state of being arranged in the vehicle width direction above the opening portion 65.

[0122] like Fig.11 , Fig.13As shown in FIG. 1 , by moving the movable plate 16C to the second position, the opening 65 is opened toward the inside of the cab 9, so that the storage space S3 can be reached from the inside of the cab 9 through the opening 65, and the detection information processing device 40, the image processing device 41, and the monitoring ECU 42 arranged in the storage space S3 can be reached. Therefore, maintenance operations such as the detection information processing device 40, the image processing device 41, and the monitoring ECU 42 can be easily performed.

[0123] The roof 16 has a locking mechanism (not shown) for locking the movable panel 16C in the first position (closed position). The movable panel 16C is normally locked in the first position (closed position) and cannot move unless the lock is released. The lock can be released only by the maintenance person.

[0124] <Combination lights, work lights>

[0125] like Figure 1 , Figure 2 , Figure 5 , Fig.15 As shown, the tractor 1 includes lights that light up around the vehicle body 5 , and the lights include a combination light 80 and a work light 81 .

[0126] The combination lamp 80 is a lamp formed by combining a plurality of lamps into a unit. In the present embodiment, the combination lamp 80 is a front combination lamp provided at the front of the tractor 1. The plurality of lamps constituting the combination lamp 80 are, for example, position lamps, turn lamps, and hazard warning lamps.

[0127] The position lights are lights used to inform the surroundings of the presence and width of the vehicle when parking, and are also called width lights, small lights, or outline lights. The turn signal is a direction indicator that shows the direction in which the tractor 1 turns. The hazard warning light is a flashing indicator light that flashes the left and right turn signals simultaneously for the purpose of attracting the attention of the following vehicles.

[0128] The plurality of lamps constituting the combination lamp 80 only need to include two or more of the position lamps, turn lamps, and hazard lamps, and may also include all of the position lamps, turn lamps, and hazard lamps. In the present embodiment, the plurality of lamps constituting the combination lamp 80 include the position lamps and turn lamps.

[0129] The work light 81 is a light that illuminates the periphery of the vehicle body 5 when working in the evening or at night, and is also called a work light. The work light 81 includes a headlight 82 that illuminates the front of the vehicle body 5 and / or a side light 83 that illuminates the side (outward in the vehicle width direction) of the vehicle body 5. In this embodiment, the work light 81 includes the headlight 82 and the side light 83.

[0130] <Configuration of obstacle detectors, combination lights, and work lights>

[0131] like Figure 1 , Figure 2 , Fig.15 As shown in the figures, the obstacle detector 84, the combination lamp 80, and the work lamp 81 are mounted on the vehicle body 5 side via the mounting bracket 85. The mounting bracket 85 is mounted on the front pillar 46. The obstacle detector 84 is a sonar that constitutes the sonar unit 37 and is installed on the left and right sides of the tractor 1.

[0132] like Figure 1 , Figure 2 As shown, the obstacle detectors 84 are arranged on the left front and right front of the cab 9. The obstacle detector 84 arranged on the left front of the cab 9 and the obstacle detector 84 arranged on the right front of the cab 9 are located at symmetrical positions across the center line of the tractor 1 in the vehicle width direction.

[0133] The obstacle detector 84 is arranged outside the vehicle body 5 in the vehicle width direction and between the front wheel 2 and the rear wheel 3. More specifically, the obstacle detector 84 is arranged outside the vehicle width direction of the engine hood 8 and between the front wheel 2 and the rear wheel 3. In the case of the present embodiment, the obstacle detector 84 arranged in the left front of the cab 9 is arranged in front of the left boarding and alighting step 17 and behind the left front wheel 2L in the front-to-back direction. The obstacle detector 84 arranged in the right front of the cab 9 is arranged in front of the right boarding and alighting step 17 and behind the right front wheel 2R in the front-to-back direction.

[0134] In addition, if Figure 1 As shown, the obstacle detector 84 is arranged below the upper end of the engine hood 8 and above the lower end of the cab 9 .

[0135] By disposing the obstacle detector 84 at the above-mentioned position, an obstacle located at a position that is difficult to see from the driver's seat 10 can be reliably detected.

[0136] like Figure 1 , Figure 2 As shown, the combination lamp 80 and the working lamp 81 are arranged on the left front and right front of the cab 9. The combination lamp 80 and the working lamp 81 arranged on the left front of the cab 9 and the combination lamp 80 and the working lamp 81 arranged on the right front of the cab 9 are located symmetrically across the center line of the tractor 1 in the vehicle width direction.

[0137] The combination lamp 80 and the working lamp 81 are arranged outside the vehicle body 5 in the vehicle width direction and between the front wheel 2 and the rear wheel 3. More specifically, the combination lamp 80 and the working lamp 81 are arranged outside the vehicle width direction of the engine hood 8 and between the front wheel 2 and the rear wheel 3. In the case of the present embodiment, the combination lamp 80 and the working lamp 81 arranged on the left front side of the cab 9 are arranged in front of the left boarding step 17 and behind the left front wheel 2L in the front-to-back direction. The combination lamp 80 and the working lamp 81 arranged on the right front side of the cab 9 are arranged in front of the right boarding step 17 and behind the right front wheel 2R in the front-to-back direction.

[0138] In addition, if Figure 1 As shown, the combination lamp 80 and the work lamp 81 are arranged below the upper end of the engine hood 8 and above the lower end of the cab 9 .

[0139] By arranging the combination lamp 80 and the work lamp 81 at the above-mentioned positions, it is possible to reliably illuminate the area outside the bonnet 8 in the vehicle width direction and between the front wheels 3 and the rear wheels 4 (eg, the area around the step 17 ).

[0140] <Structure of mounting bracket>

[0141] The mounting bracket 85 for mounting the obstacle detector 84, the combination lamp 80, and the work lamp 81 on the vehicle body 5 side includes a mounting bracket 85L and a mounting bracket 85R. The mounting bracket 85L is mounted on the left side of the vehicle body 5, and the mounting bracket 85R is mounted on the right side of the vehicle body 5.

[0142] The mounting bracket 85 has a mounting body 86. The mounting body 86 includes a detector mounting portion 87 and a lamp mounting portion. The lamp mounting portion includes a first lamp mounting portion 88 and a second lamp mounting portion 89. The obstacle detector 84 is mounted on the detector mounting portion 87. The combination lamp 80 is mounted on the first lamp mounting portion 88. The work lamp 81 is mounted on the second lamp mounting portion 89.

[0143] The first lamp mounting portion 88 is provided at the front portion of the mounting body 86. The second lamp mounting portion 89 includes an upper mounting portion 89A and a lower mounting portion 89B. The upper mounting portion 89A is provided at the upper portion of the mounting body 86. The lower mounting portion 89B is provided at the lower portion of the mounting body 86. One of the headlamp 82 and the side illumination lamp 83 is mounted on the upper mounting portion 89A. The other of the headlamp 82 and the side illumination lamp 83 is mounted on the lower mounting portion 89B. In the case of the present embodiment, the headlamp 82 is mounted on the upper mounting portion 89A, and the side illumination lamp 83 is mounted on the lower mounting portion 89B.

[0144] The headlight 82 mounted on the upper mounting portion 89A of the mounting body 86 of the mounting bracket 85L can illuminate the left front of the vehicle body 5. The headlight 82 mounted on the upper mounting portion 89A of the mounting body 86 of the mounting bracket 85R can illuminate the right front of the vehicle body 5. The side illumination lamp 83 mounted on the lower mounting portion 89B of the mounting body 86 of the mounting bracket 85L can illuminate the left side of the vehicle body 5. The side illumination lamp 83 mounted on the lower mounting portion 89B of the mounting body 86 of the mounting bracket 85R can illuminate the right side of the vehicle body 5. Thus, the side illumination lamp 83 can illuminate the periphery of the left and right boarding steps 17.

[0145] like Fig.15 , Fig.19 As shown, the mounting bracket 85 has a bracket base 90 and a bracket arm 91. The bracket base 90 is mounted to the front pillar 46. The bracket base 90 of the mounting bracket 85L is mounted to the first front pillar 46L. The bracket base 90 of the mounting bracket 85R is mounted to the second front pillar 46R.

[0146] like Fig.19 As shown, the bracket base 90 is mounted on the front pillar 46 via the receiving member 92. The receiving member 92 is fixed to the front pillar 46 by a fixing means such as welding. The receiving member 92 includes a first plate portion 921, a second plate portion 922, and a third plate portion 923. The first plate portion 921 is fixed to the outer side of the front pillar 46 in the vehicle width direction. The second plate portion 922 includes a second plate portion 922a and a second plate portion 922b that are spaced apart from each other in the up-down direction. The second plate portion 922a extends from the upper portion of the first plate portion 921 to the inner side in the vehicle width direction. The second plate portion 922b extends from the lower portion of the first plate portion 921 to the inner side in the vehicle width direction. The third plate portion 923 includes a third plate portion 923a and a third plate portion 923b that are spaced apart from each other in the up-down direction. The third plate portion 923a extends rearward from the end portion of the second plate portion 922a on the inner side in the vehicle width direction. The third plate portion 923b extends rearward from the end portion of the second plate portion 922b on the inner side in the vehicle width direction. The rear portion of the first plate portion 921 and the rear portion of the third plate portion 923 abut against the front column 46. A space is formed between the second plate portion 922 and the front column 46. This space is a space for arranging a nut N2 described later.

[0147] like Fig.19As shown, the bracket base 90 includes a first substrate 901, a second substrate 902, and a third substrate 903. One surface of the first substrate 901 faces the outer side in the vehicle width direction, and the other surface faces the inner side in the vehicle width direction. The first substrate 901 is arranged on the outer side in the vehicle width direction of the first plate portion 921 and is mounted on the first plate portion 921. Specifically, the first substrate 901 is mounted on the first plate portion 921 by inserting a bolt BL1 through a mounting hole 901a formed in the first substrate 901 and a mounting hole 921a formed in the first plate portion 921 and screwing a nut N1 into the bolt BL1. The second substrate 902 extends from the front end portion of the first substrate 901 to the inner side in the vehicle width direction. One surface of the second substrate 902 faces the front side, and the other surface faces the rear side. The second substrate 902 is arranged on the front side of the second plate portion 922 and is mounted on the second plate portion 922. Specifically, the second substrate 902 is mounted on the second plate portion 922 by inserting a bolt BL2 through a mounting hole 902a formed on the second substrate 902 and a mounting hole 922c formed on the second plate portion 922 and screwing a nut N2 on the bolt BL2. A bracket arm 91 is fixed to one surface (front surface) of the second substrate 902. The third substrate 903 extends rearward from the end portion on the inner side of the vehicle width direction of the second substrate 902. One surface of the third substrate 903 faces the outer side in the vehicle width direction, and the other surface faces the inner side in the vehicle width direction. The third substrate 903 is arranged on the rear side of the third plate portion 923 and abuts against the third plate portion 923.

[0148] like Figure 2 , Figure 5 As shown, the bracket arm 91 extends forward from the left front portion and the right front portion of the cab 9, and then bends and extends outward in the vehicle width direction. Fig.15 As shown, the bracket arm 91 extends forward from the bracket base 90 and supports the mounting body 86. One end 91a of the bracket arm 91 is fixed to the bracket base 90, and the other end 91b is fixed to the mounting body 86.

[0149] The mounting body 86 has a bracket member 93 fixed to the bracket arm 91. Fig.18 As shown, the bracket member 93 includes a rear wall 93a, an upper wall 93b, a lower wall 93c, an upper front wall 93d, and a lower front wall 93e. The rear wall 93a, the upper wall 93b, the lower wall 93c, the upper front wall 93d, and the lower front wall 93e are integrally formed by bending a plate.

[0150] The rear wall portion 93a is located at the rear of the bracket member 93. One surface of the rear wall portion 93a is facing the front side and the other surface is facing the rear side and extends in the up-down direction. The upper wall portion 93b extends forward from the upper portion of the rear wall portion 93a. The lower wall portion 93c extends forward from the lower portion of the rear wall portion 93a. The upper wall portion 93b and the lower wall portion 93c are arranged in parallel. The upper front wall portion 93d extends downward from the front portion of the upper wall portion 93b. The lower front wall portion 93e extends upward from the front portion of the lower wall portion 93c. The upper front wall portion 93d and the lower front wall portion 93e are arranged in parallel with the rear wall portion 93a. The lower end of the upper front wall portion 93d is separated from the upper end of the lower front wall portion 93e.

[0151] like Fig.17 , Fig.18 As shown, the bracket member 93 further includes a connecting wall portion 93f. The connecting wall portion 93f connects the rear wall portion 93a and the lower front wall portion 93e. The other end portion 91b of the bracket arm 91 is fixed to the connecting wall portion 93f. The bracket arm 91 is arranged on the inner side of the bracket member 93 in the vehicle width direction, extends from the other end portion 91b fixed to the connecting wall portion 93f to the outer side in the vehicle width direction, and then bends and extends rearward.

[0152] like Fig.15 , Fig.17 , Fig.18 As shown, the first lamp mounting portion 88 is provided on the upper front wall portion 93d and the lower front wall portion 93e. The upper portion of the combination lamp 80 is mounted on the first lamp mounting portion 88 of the upper front wall portion 93d. The lower portion of the combination lamp 80 is mounted on the first lamp mounting portion 88 of the lower front wall portion 93e. The first lamp mounting portion 88 includes: the front surfaces of the upper front wall portion 93d and the lower front wall portion 93e, and the first mounting holes 93g formed in the upper front wall portion 93d and the lower front wall portion 93e. Fig.17 As shown, the combination lamp 80 is mounted on the front surfaces of the upper front wall portion 93d and the lower front wall portion 93e by means of bolts BL3 inserted through the first mounting holes 93g and nuts N3 screwed onto the bolts BL3.

[0153] like Figure 15 to Figure 18 As shown, the upper mounting portion 89A is disposed on the upper wall portion 93b. Figure 15 to Figure 17 As shown, the headlight 82 is mounted on the upper mounting portion 89A of the upper wall portion 93b via the upper bracket 94. The upper mounting portion 89A includes an upper surface of the upper wall portion 93b and a second mounting hole 93h formed in the upper wall portion 93b. Fig.16 , Fig.17 As shown, the upper bracket 94 is mounted on the upper surface of the upper wall portion 93b by means of a bolt BL4 inserted through the second mounting hole 93h and a nut N4 screwed onto the bolt BL4.

[0154] in addition, Fig.16The cross section shown is a cross section obtained by cutting the rear wall portion 93a, the upper front wall portion 93d, and the lower front wall portion 93e along a plane parallel to the rear wall portion 93a and observing the front. Fig.17 The cross section shown is a cross section obtained by cutting between a first side wall 100 b and a second side wall 100 c of a cover member 100 described later along a plane parallel to the first side wall 100 b and observing the second side wall 100 c side.

[0155] like Figure 15 to Figure 17 As shown, the upper bracket 94 has a base 94a and a bearing portion 94b. The base 94a is mounted on the upper surface of the upper wall portion 93b by means of a bolt BL4 and a nut N4. The bearing portion 94b extends upward from the left and right portions of the base 94a, respectively. A first pivot (bolt) 96 for supporting the lower portion of the headlight 82 is mounted on the bearing portion 94b. The first pivot 96 extends in the vehicle width direction and supports the lower portion of the headlight 82 so as to be rotatable. Thus, the headlight 82 can rotate around the first pivot 96. By rotating the headlight 82 around the first pivot 96, the illumination direction of the headlight 82 can be changed (adjusted).

[0156] like Figure 15 to Figure 18 As shown, the lower mounting portion 89B is disposed on the lower wall portion 93c. Figure 15 to Figure 17 As shown, the side illumination lamp 83 is mounted on the lower mounting portion 89B of the lower wall portion 93c via the lower bracket 95. The lower mounting portion 89B includes a lower surface of the lower wall portion 93c and a third mounting hole 93i formed in the lower wall portion 93c. Fig.16 , Fig.17 As shown, the lower bracket 95 is mounted on the lower surface of the lower wall portion 93c by means of a bolt BL5 inserted through the third mounting hole 93i and a nut N5 screwed onto the bolt BL5.

[0157] like Figure 15 to Figure 17 As shown, the lower bracket 95 has a base 95a and a bearing portion 95b. The base 95a is mounted on the lower surface of the lower wall portion 93c by means of a bolt BL5 and a nut N5. The bearing portion 95b extends downward from the front and rear portions of the base 95a, respectively. A second pivot (bolt) 97 for supporting the upper portion of the side illumination lamp 83 is mounted on the bearing portion 95b. The second pivot 97 extends in the front-to-back direction and supports the upper portion of the side illumination lamp 83 so as to be rotatable. Thus, the side illumination lamp 83 can be rotated around the second pivot 97. By rotating the side illumination lamp 83 around the second pivot 97, the illumination direction of the side illumination lamp 83 can be changed (adjusted).

[0158] like Fig.16 , Fig.18As shown, the bracket member 93 has a mounting plate 98. The mounting plate 98 protrudes forward from the upper and lower middle parts of the rear wall. The mounting plate 98 is arranged between the upper front wall 93d and the lower front wall 93e in the upper and lower directions and close to the lower front wall 93e. The detector mounting part 87 is mounted on the mounting plate 98.

[0159] like Fig.16 , Fig.18 As shown in FIG. 1 , the detector mounting portion 87 includes a mounting base 87a, an inclined wall 87b, and a detector stay 87c. The mounting base 87a is mounted on the mounting plate 98. Specifically, the mounting base 87a is mounted on the mounting plate 98 by inserting a bolt BL6 through a fourth mounting hole 87d formed in the mounting base 87a and a fifth mounting hole 98a formed in the mounting plate 98 and screwing a nut N6 into the bolt BL6. The inclined wall 87b is provided in an inclined shape that moves upward as it moves from the mounting base 87a toward the outside in the vehicle width direction. The mounting base 87a and the inclined wall 87b are formed by bending a single plate.

[0160] like Fig.15 , Fig.16 , Fig.18 As shown, the inclined wall 87b has a transmitting opening 87e in which the transmitting unit of the obstacle detector 84 is disposed. The sound waves transmitted from the obstacle detector 84 pass through the transmitting opening 87e and are directed outward and downward in the vehicle width direction. Thus, the obstacle detector 84 can detect obstacles located to the side and below the vehicle body 5.

[0161] The detector stay 87c is fixed to the upper surface side of the inclined wall 87b. The detector stay 87c is formed with a sixth mounting hole 87f for mounting the obstacle detector 84. The obstacle detector 84 is mounted on the detector stay 87c by a bolt BL7 inserted through the sixth mounting hole 87f and a nut N7 screwed on the bolt BL7.

[0162] like Fig.15 , Fig.16 As shown in FIG. 8 , a receiving member 99 is installed in the detector mounting portion 87. The receiving member 99 receives the obstacle detector 84 in a space formed by the receiving member 99 and the inclined wall 87 b. Fig.15 , Fig.16 , Fig.18As shown, the receiving component 99 has a first wall 99a, a second wall 99b, a third wall 99c, and a mounting plate 99d. The first wall 99a is set to be inclined downward as it moves toward the outside in the vehicle width direction. The second wall 99b extends from the front of the first wall 99a to the outside in the vehicle width direction. The third wall 99c extends from the rear of the first wall 99a to the outside in the vehicle width direction. The mounting plate 99d extends from the inner side of the third wall 99c in the vehicle width direction toward the inner side of the third wall 99c in the vehicle width direction. The seventh mounting hole 99e is formed in the mounting plate 99d. The receiving component 99 is installed relative to the inclined wall 87b of the detector mounting portion 87 by inserting the bolt BL8 through the seventh mounting hole 99e and the eighth mounting hole 87g formed in the inclined wall 87b and screwing the nut (cap nut) N8 on the bolt BL8.

[0163] like Figure 15 to Figure 18 As shown, the mounting body 86 has a cover member 100. The cover member 100 has a back wall 100a, a first side wall 100b, and a second side wall 100c. The back wall 100a is mounted on the back side of the rear wall portion 93a of the bracket member 93. Specifically, the back wall 100a is mounted on the rear wall portion 93a by inserting a bolt BL9 through a ninth mounting hole 100f formed in the back wall 100a and a tenth mounting hole 93j formed in the rear wall portion 93a and screwing a nut (cap nut) N9 on the bolt BL9.

[0164] The rear wall portion 93a and the back wall 100a are respectively formed with an insertion hole 93k and an insertion hole 100g for inserting wiring etc. The insertion hole 93k and the insertion hole 100g are arranged overlapping each other and are fastened by a cylindrical fastener (eyelet) 79 .

[0165] The first side wall 100b extends forward from the outer end of the back wall 100a in the vehicle width direction. The second side wall 100c extends forward from the inner end of the back wall 100a in the vehicle width direction. The first side wall 100b has a first cutout portion 100d. The first cutout portion 100d is open to the front, and the detector mounting portion 87 can be inserted from the front side when the obstacle detector 84 is installed. The inclined wall 87b and the receiving component 99 of the detector mounting portion 87 protrude from the first cutout portion 100d toward the outside in the vehicle width direction. The portion protruding from the first cutout portion 100d is in the shape of a triangular prism. The second side wall 100c has a second cutout portion 100e. The second cutout portion 100e is open to the front, and the bracket arm 91 can be inserted from the front side. The bracket arm 91 extends through the second cutout portion 100e.

[0166] Fig. 20It is a perspective view showing another embodiment (second embodiment) of the mounting structure of the obstacle detector 84, the combination lamp 80, and the work lamp 81. The differences between the mounting structure of the second embodiment and the mounting structure of the above embodiment (first embodiment) will be described below.

[0167] In the mounting structure of the second embodiment, the structure of the mounting bracket 85 is different from that of the first embodiment. Specifically, in the first embodiment, the mounting bracket 85 is a structure in which a tubular bracket arm 91 is connected to a bracket base 90, but in the mounting bracket 85 of the second embodiment, the bracket base 90 and the bracket arm 91 are formed into a cylindrical body 101 as an integral body. In other words, the mounting bracket 85 of the second embodiment is a cylindrical body 101 having a bracket base 90 and a bracket arm 91.

[0168] The cylindrical body 101 is configured in a square cylindrical shape. The cylindrical body 101 is bent into an L-shape in a plan view. The cylindrical body 101 has an internal space having a cross-sectional area through which a harness (wiring) connected to the obstacle detector 84 , the combination lamp 80 , and the work lamp 81 can pass.

[0169] One end side (bracket base 90) of the cylindrical body 101 is mounted on a receiving member 92 fixed to the front pillar 46. The other end side (bracket arm 91) of the cylindrical body 101 is fixed to a bracket member 93. Holes through which a harness (wiring) connected to the obstacle detector 84, the combination lamp 80, and the work lamp 81 can be inserted are formed in the receiving member 92 and the front pillar 46, thereby allowing the harness to be routed through the interior of the front pillar 46.

[0170] The other end of the cylindrical body 101 is connected to the second notch 100e formed in the second side wall 100c of the cover member 100 and the connecting wall 93f of the bracket member 93 (see Fig.18 Since the cross-sectional area of ​​the cylindrical body 101 is larger than that of the bracket arm 91, the second cutout portion 100e is cut out with a wider width than that of the first embodiment.

[0171] The cylindrical body 101 includes a first member 101a and a second member 101b. The first member 101a is attached to the receiving member 92 by means of bolts or other attachments or by welding.

[0172] The second member 101b is detachably mounted on the first member 101a. The first member 101a has a cutout 102a and a protrusion 103a. The second member 101b has a cutout 102b and a protrusion 103b.

[0173] The cutout portion 102a is formed by cutting out the upper plate constituting the upper surface of the first component 101a (the upper surface of the tubular body 101). The cutout portion 102b is formed by cutting out the side plate constituting the side surface of the second component 101b (the side surface of the tubular body 101). The cutout portion 102a extends from the inside to the outside in the vehicle width direction. The cutout portion 102b extends from the outside to the inside in the vehicle width direction.

[0174] The protrusion 103a protrudes forward in a rod shape from the side of the first component 101a. The protrusion 103a can be inserted into the cutout portion 102b. The protrusion 103b protrudes upward in a rod shape from the upper surface of the second component 101b. The protrusion 103b can be inserted into the cutout portion 102a. The second component 101b is mounted on the first component 101a by inserting the protrusion 103a into the cutout portion 102b and inserting the protrusion 103b into the cutout portion 102a. In addition, by removing the second component 101b from the first component 101a, the internal space of the cylindrical body 101 is opened.

[0175] <Effect>

[0176] Next, the effects of the working vehicle (tractor) 1 according to the above-described embodiment will be described.

[0177] The work vehicle (tractor) 1 includes: a vehicle body 5; a cab 9 mounted on the vehicle body 5; an obstacle detector 84 for detecting obstacles around the vehicle body 5; a detection information processing device 40 for performing processing related to the detection information from the obstacle detector 84; a monitoring control device 42 for controlling the movement of the vehicle body 5 based on the processing of the detection information processing device 40; and a support body 53 that is arranged in a storage space S3 set at the front part of the roof 16 of the cab 9 and supports the detection information processing device 40 and the monitoring control device 42 in the storage space S3.

[0178] According to this structure, a support body 53 arranged in a storage space S3 provided at the front portion inside the roof 16 of the cab 9 can support a device (detection information processing device 40) for performing processing related to detection information from the obstacle detector 84 and a device (monitoring and control device 42) for controlling the movement of the vehicle body 5 based on the processing of the device. Therefore, these devices 40, 42 can be concentrated and assembled together with the support body 53 at the front portion inside the roof 16 of the cab 9, which can shorten the assembly work and facilitate wiring.

[0179] Furthermore, the work vehicle 1 includes a camera for capturing images of the surroundings of the vehicle body 5 and an image processing device 41 for processing images captured by the camera, and the support body 53 supports the image processing device 41 in the storage space S3 .

[0180] According to this configuration, the detection information processing device 40 , the monitoring control device 42 , and the image processing device 41 can be assembled together with the support body 53 and assembled to the cab 9 , thereby further shortening the assembly work and further facilitating the wiring.

[0181] In addition, the roof 16 has: an inner roof 16A having an opening portion 65; an outer roof 16B forming a storage space S3 between the inner roof 16A; and a movable plate 16C capable of moving to a first position to close the opening portion 65 and a second position to open the opening portion 65, and the support body 53 supports the detection information processing device 40, the monitoring control device 42 and the image processing device 41 above the opening portion 65 in a state arranged along the width direction of the vehicle body 5.

[0182] According to this structure, the space occupied by the detection information processing device 40, the image processing device 41, and the monitoring control device 42 in the front-rear direction can be reduced. Therefore, the detection information processing device 40, the image processing device 41, and the monitoring control device 42 can be centrally arranged in the front part of the storage space S3. In addition, by moving the movable plate 16C to the second position and opening the opening 65, the detection information processing device 40, the image processing device 41, and the monitoring control device 42 can be easily reached from the inside of the cab 9 through the opening 45. Therefore, maintenance operations such as the maintenance of the detection information processing device 40, the image processing device 41, and the monitoring control device 42 can be easily performed.

[0183] Furthermore, the support body 53 extends from one side to the other side in the width direction of the vehicle body 5 across the opening 45 .

[0184] According to this structure, the support body 53 can be easily and reliably arranged and mounted above the opening 45. In addition, the detection information processing device 40, the image processing device 41, and the monitoring control device 42 supported by the support body 53 can be easily reached from the opening 45.

[0185] The position detection device 30 is provided for detecting the position of the vehicle body 5 by receiving signals from positioning satellites and base stations. The position detection device 30 is arranged in front of the roof 16 and detects in front of the information processing device 40 , the image processing device 41 , and the monitoring control device 42 .

[0186] According to this structure, the detection information processing device 40, the monitoring control device 42, and the image processing device 41 can be arranged close to the position detection device 30 in the front-rear direction. Therefore, the detection information processing device 40, the monitoring control device 42, the image processing device 41, and the position detection device 30 are concentrated near the front part of the roof 16, which can facilitate wiring and maintenance.

[0187] The detection information processing device 40 includes a plurality of detection information processing devices 40A, 40B, and 40C, which are arranged in a line in the width direction of the vehicle body 5 and staggered in the front-rear direction.

[0188] According to this structure, a plurality of detection information processing devices 40A, 40B, 40C can be arranged close to each other in the width direction of the vehicle body (vehicle width direction), so that the space occupied by the plurality of detection information processing devices 40A, 40B, 40C in the vehicle width direction can be reduced. Thus, a plurality of detection information processing devices 40A, 40B, 40C, the monitoring control device 42, and the image processing device 41 can be arranged in a row in the vehicle width direction, and the detection information processing devices 40A, 40B, 40C, the monitoring control device 42, and the image processing device 41 can be concentratedly arranged in the front part of the roof 16.

[0189] In addition, the cab 9 has an upper frame 49 that supports the roof 16, and the upper frame 49 has: a front upper frame 49A that supports the front part of the roof 16; a rear upper frame 49B that supports the rear part of the roof 16; a first side upper frame 49L that supports one side of the roof 16 in the above-mentioned width direction; a second side upper frame 49R that supports the other side of the roof 16 in the above-mentioned width direction; a connecting frame 50 connecting the first side upper frame 49L and the second side upper frame 49R; a first reinforcing frame 51L that connects the above-mentioned one side of the connecting frame 50 to the front upper frame 49A; and a second reinforcing frame 51R that connects the above-mentioned other side of the connecting frame 50 to the front upper frame 49A, and a support body 53 is straddled between the first reinforcing frame 51L and the second reinforcing frame 51R.

[0190] According to this structure, the support body 53 is supported by the rectangular frame composed of the front upper frame 49A, the connecting frame 50, the first reinforcing frame 51L and the second reinforcing frame 51R. Thus, since the support body 53 is firmly and reliably supported by the upper frame 49, the detection information processing device 40, the image processing device 41 and the monitoring control device 42 can be stably supported in the storage space S3.

[0191] In addition, the working vehicle (tractor) 1 includes: a vehicle body 5; an obstacle detector 84 for detecting obstacles around the vehicle body 5; lights 80, 81 that are lit around the vehicle body 5; and a mounting bracket 85 mounted on the side of the vehicle body 5, the mounting bracket 85 having a mounting body 86, which includes a detector mounting portion 87 for mounting the obstacle detector 84 and light mounting portions 88, 89 for mounting the combination light 80.

[0192] According to this structure, since the detector mounting portion 87 and the light mounting portions 88 and 89 are provided on the mounting body 86, the obstacle detector 84 and the light 81 can be installed collectively on one mounting body 86, thereby facilitating the installation of these devices and reducing the cost associated with the installation.

[0193] The work vehicle 1 also includes a cab 9 mounted on the vehicle body 5 , a step 17 disposed below the cab 9 , and a front pillar 46 located above the step 17 and in front of the cab 9 , to which the mounting bracket 85 is mounted.

[0194] According to this configuration, the obstacle detector 84 and the lights 80, 81 can be mounted to the front pillar 46 via the mounting bracket 85. Thus, the obstacle detector 84 and the lights 80, 81 can be arranged above the step 17, and the safety of getting on and off the cab 9 can be ensured.

[0195] The obstacle detector 84 detects an obstacle located outside the vehicle body 5 in the vehicle width direction and between the front wheels 2 and the rear wheels 3 .

[0196] According to this structure, the vehicle body 5 can be prevented from approaching or contacting obstacles that exist outside the vehicle body 5 in the vehicle width direction and between the front wheels 2 and the rear wheels 3. When the boarding and alighting step 17 is arranged between the front wheels 2 and the rear wheels 3, the boarding and alighting step 17 can be prevented from approaching or contacting obstacles, thereby ensuring the safety of boarding and alighting to the cab 9.

[0197] The lamp includes a combination lamp 80 formed by combining a plurality of lamps and a work lamp 81 for illuminating the periphery of the vehicle body 5 , and the lamp mounting portion includes a first lamp mounting portion 88 for mounting the combination lamp 80 and a second lamp mounting portion 89 for mounting the work lamp 81 .

[0198] According to this configuration, the obstacle detector 84, the combination lamp 80, and the work lamp 81 can be collectively mounted on one mounting body 86, so that the mounting of these devices can be facilitated and the cost associated with the mounting can be reduced.

[0199] In addition, the detector mounting portion 87 is arranged on the outer side of the mounting body 86 in the vehicle width direction, the obstacle detector 84 is installed to detect obstacles on the outer side of the vehicle body 5 in the vehicle width direction, the first light mounting portion 88 is arranged at the front of the mounting body 86, the working light 81 includes a headlamp 82 for illuminating the front of the vehicle body 5 and a side light 83 for illuminating the outer side of the vehicle width direction of the vehicle body 5, and the second light mounting portion 89 includes: an upper mounting portion 89A, the upper mounting portion 89A is arranged at the upper portion of the mounting body 86, and one of the headlamp 82 or the side light 83 is installed; and a lower mounting portion 89B, the lower mounting portion 89B is arranged at the lower portion of the mounting body 86, and the other of the headlamp 82 or the side light 83 is installed.

[0200] According to this structure, the obstacle detector 84 can be mounted on the outer side of the mounting body 86 in the vehicle width direction, and the headlight 82 and the side lighting lamp 83 can be mounted separately on the upper part and the lower part of the mounting body 86. Thus, the obstacle detector 84, the headlight 82, and the side lighting lamp 83 can be mounted in a concentrated manner with respect to the mounting body 86 and in an appropriate direction.

[0201] In addition, the mounting bracket 85 has a bracket base 90 mounted on the front pillar 46, and a bracket arm 91 extending forward from the bracket base 90 and supporting the mounting body 86, the mounting body 86 has a bracket part 93 fixed to the bracket arm 91, the bracket part 93 has a rear wall part 93a, an upper wall part 93b extending forward from the upper part of the rear wall part 93a, a lower wall part 93c extending forward from the lower part of the rear wall part 93a, an upper front wall part 93d extending downward from the front part of the upper wall part 93b, and a lower front wall part 93e extending upward from the front part of the lower wall part 93c, the first lamp mounting part 88 is arranged on the upper front wall part 93d and the lower front wall part 93e, the upper mounting part 89A is arranged on the upper wall part 93b, and the lower mounting part 89B is arranged on the lower wall part 93c.

[0202] According to this structure, the mounting bracket 85 can be reliably mounted on the front pillar 46. In addition, the first lamp mounting portion 88, the upper mounting portion 89A, and the lower mounting portion 89B can be arranged at positions close to each other, and the mounting bracket 85 can be made compact.

[0203] In addition, the obstacle detector 84 is composed of a sonar having a transmitting portion 84a for transmitting sound waves and detecting obstacles through the sound waves. The bracket member 93 has a mounting plate 98 protruding forward from the upper and lower mid-portions of the rear wall portion 93a. The detector mounting portion 87 has: a mounting base 87a mounted on the mounting plate 98, an inclined wall 87b that is inclined as it moves upward from the mounting base 87a toward the outside in the vehicle width direction, and a detector stay 87c fixed to the upper surface side of the inclined wall 87b and on which the obstacle detector 84 is mounted. The inclined wall 87b has a transmitting opening 87e in which the transmitting portion 84a is arranged.

[0204] According to this structure, the obstacle detector 84 composed of a sonar that detects obstacles by sound waves can be installed in a manner such that the transmitting portion 84a faces obliquely downward outside in the vehicle width direction and is exposed from the transmitting opening 87e. Therefore, the obstacle detector 84 composed of the sonar can reliably detect obstacles existing obliquely downward outside in the vehicle width direction.

[0205] In addition, the bracket member 93 has a connecting wall portion 93f connecting the rear wall portion 93a and the lower front wall portion 93e, the bracket arm 91 is arranged on the inner side of the bracket member 93 in the vehicle width direction and fixed to the connecting wall portion 93f, and the mounting body 86 has a cover member 100, which includes: a back wall 100a installed on the back side of the rear wall portion 93a, a first side wall 100b extending forward from the outer end of the back wall 100a in the vehicle width direction, and a second side wall 100b extending forward from the inner end of the back wall 100a in the vehicle width direction, the first side wall 100b has a first cutout portion 100d, which is open to the front and can be inserted into the detector mounting portion 87 from the front side when the obstacle detector 84 is installed, and the second side wall 100b has a second cutout portion 100e, which is open to the front and can be inserted into the bracket arm 91 from the front side.

[0206] According to this structure, the bracket arm 91 and the bracket member 93 with the obstacle detector 84 mounted thereon can be inserted from the front and assembled to the cover member 100, so that the assembly work can be performed efficiently. In addition, the bracket member 93 can be reinforced by the cover member 100 without interfering with the arrangement of the detector mounting portion 87 and the bracket arm 91, thereby improving the rigidity of the mounting bracket 85.

[0207] The plurality of lamps constituting the combination lamp 80 include position lamps for notifying the surrounding area of ​​the vehicle width and turn lamps for indicating the direction in which the vehicle body 5 turns.

[0208] According to this structure, the position lamps and the turn lamps can be collectively mounted on one mounting body 86 together with the obstacle detector 84 and the work lamp 82, so that the mounting of these devices can be facilitated and the cost associated with the mounting can be reduced.

[0209] The above describes one embodiment of the present invention, but the embodiment disclosed this time should be understood as illustrative rather than restrictive in all aspects. The scope of the present invention is not represented by the above description, but by the claims, and is intended to include all changes within the meaning and scope equivalent to the claims.

[0210] Description of Reference Numerals

[0211] 1Working vehicle (tractor)

[0212] 2 front wheels

[0213] 3 rear wheels

[0214] 5 Body

[0215] 9 Cab

[0216] 10. Driving seat

[0217] 17 Ride and drop pedals

[0218] 46 front pillar

[0219] 80 combination lamp (lamp)

[0220] 81 work light (light)

[0221] 82 headlight

[0222] 83 side lighting

[0223] 84 Obstacle Detector

[0224] 84a Transmission unit

[0225] 85 Mounting bracket

[0226] 86 installation body

[0227] 87 detector installation part

[0228] 87a Installation base

[0229] 87b inclined wall

[0230] 87c detector support

[0231] 87e sending opening

[0232] 88 First Light Installation Department

[0233] 89 Second lamp installation part

[0234] 89A upper mounting part

[0235] 89B lower mounting part

[0236] 90 bracket base

[0237] 91 Bracket Arm

[0238] 93 bracket parts

[0239] 93a rear wall

[0240] 93b Upper wall

[0241] 93c Lower wall

[0242] 93d upper front wall

[0243] 93e lower front wall

[0244] 93f connecting wall

[0245] 98 Mounting Plate

[0246] 100 cover parts

[0247] 100a back wall

[0248] 100b first side wall

[0249] 100b second side wall

[0250] 100d first incision

[0251] 100e Second incision

Claims

1. A working vehicle, wherein: The working vehicle has: Car body; An obstacle detector, the obstacle detector detecting obstacles around the vehicle body; lights, which light up around the vehicle body; a mounting bracket mounted on the vehicle body side; A cab, the cab being mounted on the vehicle body; A stepping pedal, wherein the stepping pedal is arranged below the cab; A front pillar, the front pillar being located above the boarding and alighting pedals and at the front of the cab; The mounting bracket is mounted on the front pillar, The mounting bracket has a mounting body, and the mounting body includes a detector mounting portion for mounting the obstacle detector and a lamp mounting portion for mounting the lamp. The mounting bracket includes a bracket base mounted on the front pillar, and a bracket arm extending forward from the bracket base and supporting the mounting body. The mounting body has a bracket member fixed to the bracket arm, The bracket member includes a rear wall portion, an upper wall portion extending forward from an upper portion of the rear wall portion, a lower wall portion extending forward from a lower portion of the rear wall portion, an upper front wall portion extending downward from a front portion of the upper wall portion, and a lower front wall portion extending upward from a front portion of the lower wall portion. The lamp includes a combination lamp formed by combining a plurality of lamps and a work lamp for illuminating the periphery of the vehicle body. The lamp mounting portion includes a first lamp mounting portion for mounting the combination lamp and a second lamp mounting portion for mounting the work lamp. The first lamp mounting portion is disposed on the upper front wall portion and the lower front wall portion, The second lamp mounting portion includes an upper mounting portion disposed on the upper portion of the mounting body and a lower mounting portion disposed on the lower portion of the mounting body. The upper mounting portion is arranged on the upper wall portion, The lower mounting portion is arranged on the lower wall portion, The obstacle detector is composed of a sonar having a transmitting unit that transmits sound waves and detects obstacles through the sound waves. The bracket member includes a mounting plate protruding forward from an upper and lower midway portion of the rear wall portion. The detector mounting portion includes: a mounting base mounted on the mounting plate, an inclined wall that is inclined upward as it moves from the mounting base toward the outside in the vehicle width direction, and a detector stay fixed to the upper surface side of the inclined wall and mounting the obstacle detector. The inclined wall has a transmission opening in which the transmission unit is arranged.

2. The work vehicle according to claim 1, wherein: The working vehicle has: a front wheel disposed at the front portion of the vehicle body; and a rear wheel, the rear wheel being arranged at the rear of the vehicle body, The obstacle detector detects an obstacle outside the vehicle body in the vehicle width direction and between the front wheels and the rear wheels.

3. The work vehicle according to claim 1, wherein: The detector mounting portion is provided on the outer side of the mounting body in the vehicle width direction, and the obstacle detector is installed to detect obstacles on the outer side of the vehicle body in the vehicle width direction. The first lamp mounting portion is disposed at the front of the mounting body, The work lights include a headlamp for illuminating the front of the vehicle body and a side lamp for illuminating the outside of the vehicle body in the vehicle width direction. The upper mounting portion is mounted with one of the headlight or the side lighting lamp. The lower mounting portion is mounted with the other of the headlight or the side lighting lamp.

4. The work vehicle according to claim 1, wherein: The bracket member includes a connecting wall portion connecting the rear wall portion and the lower front wall portion, The bracket arm is arranged inwardly of the bracket member in the vehicle width direction and fixed to the connecting wall portion. The mounting body has a cover component, the cover component including: a back wall mounted on the back side of the rear wall portion, a first side wall extending forward from an outer end portion of the back wall in the vehicle width direction, and a second side wall extending forward from an inner end portion of the back wall in the vehicle width direction. The first side wall has a first cutout portion, the first cutout portion is open to the front and the detector mounting portion can be inserted from the front side when the obstacle detector is mounted. The second side wall has a second cutout portion that opens forward and allows the bracket arm to be inserted from the front.

5. The work vehicle according to claim 1, wherein: The plurality of lamps constituting the combination lamp include a clearance lamp for notifying the surrounding area of ​​the vehicle width and a turn lamp for indicating the direction in which the vehicle body turns.

Images