JP2020142647A - Work vehicle - Google Patents

Abstract

To provide a work vehicle which enables reduction of assembly time of a support frame and side mirrors.SOLUTION: A work vehicle includes: a vehicle body; a cabin mounted on the vehicle body; attachment brackets fixed to a front part of the cabin; a position detection device which detects a position of the vehicle body; a support frame which supports the position detection device and is fixed to the attachment brackets; side mirrors disposed at the sides of the front part of the cabin; and mirror attachment stays to which the side mirrors are respectively attached and which are fixed to the support frame.SELECTED DRAWING: Figure 7

Description

The present invention relates to a work vehicle.

Conventionally, a work vehicle disclosed in Patent Document 1 is known.
The work vehicle disclosed in Patent Document 1 has a cabin mounted on a vehicle body. The cabin is provided with a position detection device that detects the position of the vehicle body and a side mirror that visually recognizes the rear of the vehicle body. The position detector is supported by a support frame. The support frame is attached to a plate provided on the roof side of the cabin. The side mirrors are attached to a bracket fixed to the top of the front pillars.

Japanese Unexamined Patent Publication No. 2016-2874

In the work vehicle disclosed in Patent Document 1, since the support frame for supporting the position detection device and the side mirrors are separately attached, it takes time to assemble them.
Therefore, in view of the above problems, an object of the present invention is to provide a work vehicle capable of shortening the assembly time of the support frame and the side mirrors.

The work vehicle according to one aspect of the present invention includes a vehicle body, a cabin mounted on the vehicle body, a mounting bracket fixed to the front portion of the cabin, a position detecting device for detecting the position of the vehicle body, and the position. A support frame for supporting the detection device, a support frame attached to the mounting bracket, side mirrors arranged on the front side of the cabin, and a mirror mounting stay to which the side mirrors are mounted. It includes a mirror mounting stay fixed to the support frame.

Further, the cabin has a front pillar at a front portion, and the mounting bracket projects in an inclined direction in which the front pillar shifts forward as it goes outward in the vehicle width direction, and the support frame is at the position. It has a support rod that supports the detection device and a mounting plate that is overlapped with the mounting bracket and mounted on the mounting bracket. The support rod is provided on the front side of the upper part of the cabin so as to extend in the vehicle width direction. It has a horizontal rod portion that has been formed, and a vertical rod portion that extends downward from the end portion of the horizontal rod portion and is fixed to the mounting plate.

Further, the side mirror has a mirror main body and a bracket arm for supporting the mirror main body, and the mirror mounting stay is a support cylinder to which the bracket arm is mounted and is located on the front side in the protruding direction of the mounting bracket. It has an arranged support cylinder and a stay body that connects the vertical rod portion and the support cylinder.
Further, the stay main body extends from the vertical rod portion toward the support cylinder so that the distance from the mounting bracket gradually becomes narrower toward the protruding direction of the mounting bracket.

Further, a first bolt penetrating the mounting bracket and the mounting plate on the base side of the mounting bracket, a second bolt penetrating the mounting bracket and the mounting plate on the tip end side of the mounting bracket, and the mounting plate. The first nut and the second nut into which the first bolt is screwed are provided, and the mounting plate is superposed on the back surface of the mounting bracket, and the first nut and the second nut are screwed. The second nut is fixed to the back surface of the mounting plate, and the vertical rod portion is arranged on the tip end side of the mounting bracket and closer to the base side than the second nut, and is placed on the back surface of the mounting plate. The stay body is fixed and extends from the back surface of the vertical rod portion toward the support cylinder.

Further, the front pillar includes a first front pillar located on one side in the vehicle width direction in the front portion of the cabin and a second front pillar located on the other side in the vehicle width direction in the front portion of the cabin. The cabin has a front upper frame that connects the first front pillar and the upper parts of the second front pillar to each other, and the mounting bracket includes a first bracket fixed to the upper part of the first front pillar and the second. A second bracket fixed to the upper part of the front pillar is included, and the mounting plate includes a first plate attached to the first bracket and a second plate attached to the second bracket, and the lateral rod portion. Are arranged in front of and above the front upper frame from above the first plate to above the second plate, and the vertical rod portion is downward from the end portion of the horizontal rod portion on the first plate side. The first vertical rod portion extended to the first plate and fixed to the first plate, and the second vertical rod portion extended downward from the end portion of the horizontal rod portion on the second plate side and fixed to the second plate. Including the vertical rod.

According to the above configuration, the support frame can be assembled to the cabin with the side mirrors attached to the support frame, and the assembly time can be shortened.

It is a side view of a work vehicle. It is a top view of a work vehicle. It is a perspective view of the cabin frame seen from the front side. It is a front view of the upper part of the front part of a cabin frame. It is a top view of the front side of a cabin frame. It is a front view of the mounting part of a support frame and a side mirror. It is a top view of the mounting part of a support frame and a side mirror. It is a perspective view seen from the upper part of the back surface of the mounting part of a support frame and a side mirror. It is a front view which looked at the mounting part of a support frame and a side mirror from the E1 direction of FIG. It is a rear view which looked at the mounting part of a support frame and a side mirror from the E2 direction of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.
FIG. 1 is a schematic side view showing the overall configuration of the work vehicle 1 according to the present embodiment. FIG. 2 is a schematic plan view of the work vehicle 1. In this embodiment, the tractor is exemplified as the work vehicle 1.
In the present embodiment, the direction of arrow A1 (forward direction of tractor 1) in FIGS. 1 and 2 is forward, the direction of arrow A2 in FIGS. 1 and 2 (backward direction of tractor 1) is backward, and FIGS. 1 and 2 are shown. The direction of arrow A3 will be described as the front-back direction. Therefore, the front side of FIG. 1 is to the left (direction of arrow B1 of FIG. 2), and the back side of FIG. 1 is to the right (direction of arrow B2 of FIG. 2). Further, the horizontal direction orthogonal to the front-rear direction A3 will be described as the vehicle width direction (arrow B3 direction in FIG. 2) which is the width direction of the tractor 1 (work vehicle). The direction from the central portion to the right portion or the left portion of the vehicle width direction B3 in the tractor 1 will be described as the outward direction in the vehicle width direction. In other words, the outer direction in the vehicle width direction is the direction B3 in the vehicle width direction and away from the center in the width direction of the tractor 1. The direction opposite to the outside in the vehicle width direction will be described as the inside in the vehicle width direction. In other words, the inward direction in the vehicle width direction is the direction B3 in the vehicle width direction and approaches the center in the width direction of the tractor 1.

As shown in FIGS. 1 and 2, the tractor 1 has a vehicle body 5, and the vehicle body 5 has a prime mover 6 and a transmission case 7. The prime mover 6 is a diesel engine. The prime mover 6 may be a gasoline engine or an electric motor, or may be a hybrid type having an engine and an electric motor. The prime mover 6 is located in front of the tractor 1 and is covered by a bonnet 8.

The transmission case 7 is transmitted via, for example, a flywheel housing accommodating a flywheel, a clutch housing accommodating a clutch for intermittently transmitting the power of the prime mover 6 transmitted via the flywheel, and a clutch. It is configured by directly connecting to a mission case or the like that houses a transmission that shifts power.
As shown in FIGS. 1 and 2, the vehicle body 5 is movably supported by, for example, a wheel-type traveling 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. Including.

As shown in FIG. 1, the tractor 1 has a cabin 9 mounted at the rear of the vehicle body 5. A driver's seat 10 on which the operator sits is provided at the rear of the cabin 9. A steering wheel 11 for steering the front wheels 2 (2L, 2R) is provided in front of the driver's seat 10. A windshield 12 is provided on the front surface of the cabin 9. A rear glass is provided at the rear of the cabin 9. On the side surfaces (left side surface and right side surface) of the cabin 9, an entrance / exit 13 for operators to get on and off and an entrance / exit door 14 for opening and closing the entrance 13 are provided. A rear side glass 15 is provided behind the entrance / exit door 14. Further, the cabin 9 has a roof 16 forming a ceiling portion at the upper part. Below each of the left and right boarding / alighting doors 14, boarding / alighting steps 17 are provided on which the operator puts his / her foot when getting on / off the cabin 9.

As shown in FIG. 3, the cabin 9 has a cabin frame 45 that constitutes the framework of the cabin 9. The cabin frame 45 has a front pillar 46, a center pillar (quarter pillar) 47, a rear pillar 48, and an upper frame 49.
The front pillar 46 is a first front pillar 46L located on one side (left side) of the front portion of the cabin frame 45 (cabin 9) in the vehicle width direction B3 and the front portion of the cabin frame 45 (cabin 9) in the vehicle width direction B3. The second front pillar 46R located on the other side (right side) is included. That is, the cabin 9 has a front pillar 46 at the front portion. A windshield 12 is provided between the first front pillar 46L and the second front pillar 46R. The center pillar 47 is a first center pillar 47L located in the middle of the front-rear direction on one side surface (left side surface) of the cabin frame 45 and a second center located in the middle part of the other side surface (right side surface) of the cabin frame 45 in the front-rear direction. Includes pillar 47R. Boarding / alighting doors 14 are provided between the first front pillar 46L and the first center pillar 47L, and between the second front pillar 46R and the second center pillar 47R, respectively. The rear pillar 48 includes a first rear pillar 48L located on one side of the back surface of the cabin frame 45 and a second rear pillar 48R located on the other side of the back surface of the cabin frame 45. A rear glass is provided between the first rear pillar 48L and the second rear pillar 48R. The rear side glass 15 is provided between the first center pillar 47L and the first rear pillar 48L and between the second center pillar 47R and the second rear pillar 48R.

A roof 16 is attached to the upper frame 49. The upper frame 49 is a front upper frame 49A that connects the upper portions of the first front pillar 46L and the second front pillar 46R, and a first side upper frame that connects the upper portions of the first front pillar 46L and the first center pillar 47L. The 49L, the second side upper frame 49R that connects the upper parts of the second front pillar 46R and the second center pillar 47R, the upper parts of the first center pillar 47L and the second center pillar 47R, and the first rear pillar 48L and the second It has a rear upper frame 49B that connects the upper parts of the rear pillar 48R to each other.

As shown in FIG. 4, the upper frame 49 has a connecting frame 50 provided at the front portion over 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 by the first reinforcing frame 51L, and the other side is connected to the front upper frame 49A by the second reinforcing frame 51R. The upper frame 49 has an erection frame 52 erected between the left and right front ends of the rear upper frame 49B at the rear portion.

The lower parts of the first front pillar 46L and the second front pillar 46R are connected by a frame member 54, and the lower parts of the first front pillar 46L and the first center pillar 47L are connected by 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 by the frame member 55R and the frame member 56R, and the lower parts of the first center pillar 47L and the second center pillar 47R are connected to each other by the frame member 57. There is.

As shown in FIGS. 4 and 5, a support frame 58 is provided at the front portion of the cabin frame 45 (cabin 9). The support frame 58 is provided over the first front pillar 46L and the second front pillar 46R. One end side of the support frame 58 is attached to the first front pillar 46L, and the other end side is attached to the second front pillar 46R. A position detection device 30, a communication antenna 34, and a transmitter 35 are attached to the support frame 58.

The position detection device 30 is a device that detects the position of the vehicle body 5 (tractor 1). The position detection device 30 is a device that detects its own position (positioning information including latitude and longitude) by a satellite positioning system (positioning satellite). Specifically, the position detection device 30 obtains the position and orientation of the vehicle body 5 by using a well-known GPS (Global Positioning System), which is an example of the Global Navigation Satellite System (GNSS). In this embodiment, RTK-GPS suitable for positioning of a moving body is adopted. Further, the position detection device 30 has a receiver, a radio, and an inertial measurement unit (IMU). The receiver has an antenna or the like and receives the received signal transmitted from the positioning satellite. The radio has an antenna 32A and communicates with a base station (reference station) installed at a known position. The base station transmits the positioning data (correction information) obtained by receiving the radio waves from the positioning satellite to the position detection device 30. The position detection device 30 receives the radio waves transmitted from the positioning satellite and the positioning data transmitted from the base station, and receives the radio waves from the positioning satellite to obtain the positioning data and the positioning data from the base station. Detects its own position (latitude, longitude) based on. The inertial measurement unit includes an acceleration sensor that detects acceleration, a gyro sensor that detects angular velocity, and the like. With this inertial measurement unit, the roll angle, pitch angle, yaw angle, etc. of the vehicle body 5 can be detected.

The tractor 1 of the present embodiment can control the automatic traveling of the vehicle body 5 (automatic traveling control). Further, the tractor 1 can be switched between an automatic traveling mode in which the vehicle body 5 is automatically traveled and a manual traveling mode in which the vehicle body 5 is traveled by a manual operation by an operator.
In the automatic driving mode, the steering wheels (front wheels 2) are set so that at least the traveling position of the vehicle body 5 (the position detected by the position detecting device 30) and the preset traveling route (traveling route) match. Controls the steering device to be steered. Specifically, in the automatic driving mode, the traveling position of the vehicle body 5 is compared with the position indicated by the traveling route (scheduled traveling position), and if the traveling position and the planned traveling position match, the steering wheel The steering angle and steering direction of 11 (the steering angle and steering direction of the front wheel 2) are held unchanged. If the traveling position and the planned traveling position do not match, the steering angle and / or the steering direction of the steering wheel 11 is changed so that the deviation (deviation amount) between the traveling position and the planned traveling position becomes zero. To do.

The communication antenna 34 wirelessly communicates various information such as an automatic traveling start command and a stop command (including a temporary stop) with a remote control tool that remotely controls the tractor 1 from a remote position.
The transmitter 35 is, for example, a wireless communication device that transmits various signals via a wireless communication network constructed with a wireless communication terminal such as a mobile device or a personal computer.
The position detection device 30 is arranged in front of the central portion of the front upper frame 49A in the vehicle width direction B3, the transmitter 35 is arranged on one side (left side) of the position detection device 30, and the communication antenna 34 is arranged. It is arranged on one side of the transmitter 35.

As shown in FIGS. 2 and 4, side mirrors 61 are arranged on the front side of the cabin frame 45 (cabin 9). The side mirror 61 is a mirror that visually recognizes the rear side and the rear side of the vehicle body 5. The side mirror 61 includes a first side mirror 61L arranged on one side (left side) of the cabin frame 45 and a second side mirror 61R arranged on the other side (right side) of the cabin frame 45. .. The side mirror 61 has a mirror main body 62 having a mirror for confirming the rear side and the rear side of the vehicle body 5, and a bracket arm 63 for supporting the mirror main body 62. The bracket arm 63 includes a mounting portion 63a attached to the upper part of the mirror main body 62, an arm main body 63b extending from the upper end of the mounting portion 63a toward the cabin 9 (front pillar 46) side, and a cabin 9 side of the arm main body 63b. It has a mounting shaft 63c (see FIG. 6) that projects downward from the end of the.

As shown in FIGS. 4 and 5, a mounting bracket 64 to which the support frame 58 is mounted is fixed to the upper portion of the front pillar 46. Specifically, the mounting bracket 64 includes a first bracket 64L fixed to the first front pillar 46L and a second bracket 64R fixed to the second front pillar 46R.
As shown in FIG. 7, the mounting bracket 64 projects outward from the front pillar 46 in the vehicle width direction. Specifically, the mounting bracket 64 projects in the inclination direction (projection direction X1) that shifts forward as it goes outward in the vehicle width direction from the front pillar 46.

As shown in FIG. 6, the mounting bracket 64 has a downward hook-shaped hanging portion 64a on the tip end side (the side far from the front pillar 46) of the protruding direction X1. The hanging portion 64a is a portion where a hanging member 66 (for example, a hanging metal fitting such as a locking hook attached to an end of a cord such as a wire rope) is hooked when the cabin 9 (cabin frame 45) is lifted by a crane or the like. is there. A hanging portion is also appropriately provided on the rear side of the cabin frame 45. A bracket member 67 is arranged below the mounting bracket 64. The bracket member 67 is fixed to the front pillar 46 by welding or the like, and the upper end thereof is fixed to the lower end of the mounting bracket 64 by welding or the like. For example, optional parts are attached to the bracket member 67.

As shown in FIG. 5, the support frame 58 has a support rod 68 and a mounting plate 69 fixed to the end of the support rod 68. The support rod 68 has a horizontal rod portion 70 and a vertical rod portion 71.
As shown in FIGS. 4 and 5, the horizontal rod portion 70 is arranged so as to extend in the vehicle width direction B3 on the front side of the upper part of the cabin 9. Specifically, the horizontal rod portion 70 is arranged in front of and above the front upper frame 49A, and is above the first front pillar 46L (above the first bracket 64L) and above the second front pillar 46R (second). It is provided over the bracket 64R).

As shown in FIG. 5, the horizontal rod portion 70 is arranged so as to extend linearly in the vehicle width direction B3 so as to extend from one end side to the other end side of the front upper frame 49A, and has a main rod portion 70A. The position detecting device 30 is attached to the central portion of the main rod portion 70A in the vehicle width direction B3. Further, the horizontal rod portion 70 includes a first side rod portion 70L located on the left rear side of the main rod portion 70A and a second side rod portion 70R located on the right rear side of the main rod portion 70A. Have. The main rod portion 70A and the first side rod portion 70L are connected by the first connecting rod portion 70B, and the main rod portion 70A and the second side rod portion 70R are connected by the second connecting rod portion 70C.

As shown in FIG. 4, the vertical rod portion 71 extends downward from the end portion of the horizontal rod portion 70. Specifically, the vertical rod portion 71 includes a first vertical rod portion 71L extending downward from one end (left end) of the horizontal rod 70, and a second extending downward from the other end (right end) of the horizontal rod 70. Includes vertical rod 71R. Further, the lower portion of the vertical rod portion 71 is located on the back side of the mounting bracket 64. Specifically, the lower portion of the first vertical rod portion 71L is located on the back surface side of the first bracket 64L, and the lower portion of the second vertical rod portion 71R is located on the back surface side of the second bracket 64R.

As shown in FIGS. 7, 8 and 9, the mounting plate 69 is fixed to the lower portion of the vertical rod portion 71 by welding or the like. Specifically, the mounting plate 69 includes a first plate 69L fixed to the lower part of the first vertical rod portion 71L and a second plate 69R fixed to the lower part of the second vertical rod portion 71R. Further, the mounting plate 69 is mounted so as to be overlapped on the back surface of the mounting bracket 64. Specifically, the first plate 69L is attached to the first bracket 64L, and the second plate 69R is attached to the second bracket 64R. The portion of the mounting plate 69 to be overlapped with the hanging portion 64a is formed in a downward hook shape having the same shape as the hanging portion 64a. The mounting plate 69 is attached to the mounting bracket 64 by a plurality of sets of the first bolt 72A and the first nut 72B, and a set of the second bolt 73A and the second nut 73B.

As shown in FIG. 10, the first nut 72B is arranged vertically side by side on the base side of the mounting bracket 64, and is fixed to the back surface of the mounting plate 69 by welding or the like. The second nut 73B is arranged on the upper portion of the mounting bracket 64 on the tip end side, and is fixed to the back surface of the mounting plate 69 by welding or the like.
As shown in FIG. 7, the first bolt 72A penetrates the mounting bracket 64 and the mounting plate 69 from the front of the mounting bracket 64 and is screwed into the first nut 72B. The second bolt 73A penetrates the mounting bracket 64 and the mounting plate 69 from the front of the mounting bracket 64 and is screwed into the second nut 73B.

As shown in FIGS. 7 and 9, the vertical rod portion 71 is arranged on the tip end side of the mounting bracket 64 and closer to the base portion of the mounting bracket 64 than the second nut 73B.
As shown in FIGS. 9 and 10, the antenna 74 is arranged on the front side of the first bracket 64L. The antenna 74 is, for example, an antenna for a radio. The base portion 74a of the antenna 74 is attached to the first bracket 64L between the first bolt 72A and the first vertical rod portion 71L. Specifically, the antenna 74 has a bolt penetrating the first bracket 64L at the base portion 74a, and is attached to the first bracket 64L by tightening a nut from the back surface of the first bracket 64L to the bolt. ..

As shown in FIG. 10, the first plate 69L has an upper opening-shaped notch 75 that avoids interference with the mounting portion of the antenna 74.
As shown in FIGS. 6 to 10, a mirror mounting stay 76 to which the side mirror 61 is mounted is fixed to the support rod 68 (vertical rod portion 71) by welding or the like. Specifically, the mirror mounting stay 76 includes a first mirror stay 76L fixed to the first vertical rod portion 71L and a second mirror stay 76R fixed to the second vertical rod portion 71R. By fixing the mirror mounting stay 76 to the support rod 68, the support frame 58 can be assembled to the cabin 9 with the side mirror 61 attached to the support frame 58. As a result, the assembly time can be shortened.

The mirror mounting stay 76 has a support cylinder 77 to which the bracket arm 63 is mounted, and a stay body 78 provided over the support cylinder 77 and the vertical rod portion 71. The support cylinder 77 has an axial center in the vertical direction and is located on the front side of the mounting bracket 64 in the protruding direction X1 (see FIG. 7). The mounting shaft 63c of the bracket arm 63 is attached to the support cylinder 77 (see FIG. 9). The side mirror 61 can be folded by rotating it inward in the vehicle width direction around the axis of the mounting shaft 63c from the normal use position protruding laterally from the cabin 9.

As shown in FIG. 7, the stay main body 78 extends from the back surface of the vertical rod portion 71 toward the back surface of the support cylinder 77. Specifically, the stay main body 78 extends from the vertical rod portion 71 toward the support cylinder 77 so that the distance from the mounting bracket 64 gradually narrows toward the protruding direction X1. Further, one end of the stay body 78 is fixed to the back surface of the vertical rod portion 71 by welding or the like, and the other end is fixed to the back surface of the support cylinder 77.

In the present embodiment, the effect of the following configuration is obtained.
The work vehicle 1 includes a vehicle body 5, a cabin 9 mounted on the vehicle body 5, a mounting bracket 64 fixed to the front portion of the cabin 9, a position detection device 30 for detecting the position of the vehicle body 5, and a position detection device 30. A support frame 58 for supporting the above, a support frame 58 attached to the mounting bracket 64, a side mirror 61 arranged on the side of the front portion of the cabin 9, and a mirror mounting stay 76 on which the side mirror 61 is attached. A mirror mounting stay 76 fixed to the support frame 58 is provided.

According to this configuration, the support frame 58 can be assembled to the cabin 9 in a state where the side mirror 61 is assembled to the support frame 58, and the assembly time can be shortened.
Further, the cabin 9 has a front pillar 46 at the front portion, and the mounting bracket 64 projects in an inclined direction in which the front pillar 46 shifts forward as it goes outward in the vehicle width direction, and the support frame 58 is positioned. It has a support rod 68 that supports the detection device 30 and a mounting plate 69 that is overlapped with the mounting bracket 64 and mounted on the mounting bracket 64. The support rod 68 is located on the front side of the upper part of the cabin 9 in the vehicle width direction B3. It has a horizontal rod portion 70 extending from the horizontal rod portion 70, and a vertical rod portion 71 extending downward from the end portion of the horizontal rod portion 70 and fixed to the mounting plate 69.

According to this configuration, it is possible to prevent the mounting bracket 64 and the mounting plate 69 from protruding significantly toward the side of the cabin 9. Further, it is possible to prevent the support frame 58, the mounting bracket 64 and the mounting plate 69 from obstructing the operator's field of view.
Further, the side mirror 61 has a mirror main body 62 and a bracket arm 63 for supporting the mirror main body 62, and the mirror mounting stay 76 is a support cylinder 77 to which the bracket arm 63 is mounted and is a projecting direction of the mounting bracket 64. It has a support cylinder 77 arranged on the front side of X1 and a stay main body 78 that connects the vertical rod portion 71 and the support cylinder 77.

According to this configuration, the mirror mounting stay 76, the vertical rod portion 71, and the mirror mounting stay 76 can be compactly configured.
Further, the stay main body 78 extends from the vertical rod portion 71 toward the support cylinder 77 so that the distance from the mounting bracket 64 gradually becomes narrower toward the protruding direction X1 of the mounting bracket 64.

According to this configuration, the vertical rod portion 71, the support cylinder 77, and the stay main body 78 can be compactly configured.
Further, the first bolt 72A that penetrates the mounting bracket 64 and the mounting plate 69 on the base side of the mounting bracket 64, and the second bolt 73A that penetrates the mounting bracket 64 and the mounting plate 69 on the tip side of the mounting bracket 64 are mounted. A first nut 72B fixed to the plate 69 and into which the first bolt 72A is screwed and a second nut 73B into which the second bolt 73A is screwed are provided, and the mounting plate 69 is overlapped with the back surface of the mounting bracket 64 and is first. The nut 72B and the second nut 73B are fixed to the back surface of the mounting plate 69, and the vertical rod portion 71 is arranged on the tip end side of the mounting bracket 64 and closer to the base side than the second nut 73B. Fixed to the back surface of 69, the stay main body 78 extends from the back surface of the vertical rod portion 71 toward the support cylinder 77.

Even with this configuration, the vertical rod portion 71, the support cylinder 77, and the stay main body 78 can be compactly configured.
Further, the front pillar 46 includes a first front pillar 46L located on one side in the vehicle width direction in the front portion of the cabin 9, and a second front pillar 46R located on the other side in the vehicle width direction in the front portion of the cabin 9. , The cabin 9 has a front upper frame 49A that connects the upper portions of the first front pillar 46L and the second front pillar 46R to each other, and the mounting bracket 64 is the first bracket 64L fixed to the upper portion of the first front pillar 46L. And a second bracket 64R fixed to the upper part of the second front pillar 46R, the mounting plate 69 includes a first plate 69L attached to the first bracket 64L and a second plate 69R attached to the second bracket 64R. The horizontal rod portion 70 is arranged in front of and above the front upper frame 49A from above the first plate 69L to above the second plate 69R, and the vertical rod portion 71 is the first of the horizontal rod portions 70. A first vertical rod portion 71L extending downward from the end on the plate 69L side and fixed to the first plate 69L, and a second vertical rod portion 70 extending downward from the end on the second plate 69R side of the horizontal rod portion 70. 2 Includes a second vertical rod 71R fixed to the plate 69R.

According to this configuration, the support frame 58 can be provided over the first front pillar 46L and the second front pillar 46R, and the support frame 58 can be firmly supported.
Although one embodiment of the present invention has been described above, it should be considered that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended that all modifications within the meaning and scope equivalent to the scope of claims are included.

5 Body 9 Cabin 30 Position detector 46 Front pillar 46L 1st front pillar 46R 2nd front pillar 49A Front upper frame 58 Support frame 61 Side mirror 62 Mirror body 63 Bracket arm 64 Mounting bracket 64L 1st bracket 64R 2nd bracket 68 Support Rod 69 Mounting plate 69L 1st plate 69R 2nd plate 70 Horizontal rod 71 Vertical rod 71L 1st vertical rod 71R 2nd vertical rod 72A 1st bolt 72B 1st nut 73A 2nd bolt 73B 2nd nut 76 Mirror Mounting stay 77 Support cylinder 78 Stay body B3 Vehicle width direction X1 Projection direction

The work vehicle according to one aspect of the present invention includes a vehicle body, a cabin mounted on the vehicle body, a mounting bracket fixed to the front portion of the cabin, a position detecting device for detecting the position of the vehicle body, and the position. A support frame that supports the detection device, a support frame that is attached to the mounting bracket, side mirrors that are arranged on the front side of the cabin, and a mirror mounting stay to which the side mirrors are mounted. A mirror mounting stay fixed to the support frame, the cabin has a front pillar at the front, and the mounting bracket is inclined to move forward from the front pillar toward the outside in the vehicle width direction. Protruding in the direction, the support frame has a support rod for supporting the position detecting device and a mounting plate which is overlapped with the mounting bracket and mounted on the mounting bracket, and the support rod is of the cabin. It has a horizontal rod portion extending in the vehicle width direction on the front side of the upper portion, and a vertical rod portion extending downward from the end portion of the horizontal rod portion and fixed to the mounting plate.

Claims (6)

With the car body
The cabin mounted on the car body and
With the mounting bracket fixed to the front of the cabin,
A position detection device that detects the position of the vehicle body and
A support frame that supports the position detection device, and a support frame that is attached to the mounting bracket.
Side mirrors arranged on the front side of the cabin,
A mirror mounting stay to which the side mirror is mounted, the mirror mounting stay fixed to the support frame, and
A work vehicle equipped with. The cabin has front pillars at the front and
The mounting bracket projects in an inclined direction that shifts forward from the front pillar toward the outside in the vehicle width direction.
The support frame has a support rod that supports the position detection device, and a mounting plate that is overlapped with the mounting bracket and mounted on the mounting bracket.
The support rod was fixed to the mounting plate by extending downward from the end portion of the lateral rod portion provided on the front side of the upper part of the cabin in the vehicle width direction and extending downward from the end portion of the lateral rod portion. The work vehicle according to claim 1, which has a vertical rod portion. The side mirror has a mirror body and a bracket arm that supports the mirror body.
The mirror mounting stay has a support cylinder to which the bracket arm is mounted, which is arranged on the front side in the protruding direction of the mounting bracket, and a stay main body that connects the vertical rod portion and the support cylinder. The work vehicle according to claim 2. The work vehicle according to claim 3, wherein the stay main body extends from the vertical rod portion toward the support cylinder so that the distance from the mounting bracket gradually becomes narrower toward the protruding direction of the mounting bracket. A first bolt penetrating the mounting bracket and the mounting plate on the base side of the mounting bracket,
A second bolt penetrating the mounting bracket and the mounting plate on the tip end side of the mounting bracket,
It includes a first nut that is fixed to the mounting plate and into which the first bolt is screwed, and a second nut into which the second bolt is screwed.
The mounting plate is superposed on the back surface of the mounting bracket.
The first nut and the second nut are fixed to the back surface of the mounting plate.
The vertical rod portion is arranged on the tip end side of the mounting bracket and closer to the base portion side than the second nut, and is fixed to the back surface of the mounting plate.
The work vehicle according to claim 3 or 4, wherein the stay main body extends from the back surface of the vertical rod portion toward the support cylinder. The front pillar includes a first front pillar located on one side in the vehicle width direction in the front portion of the cabin and a second front pillar located on the other side in the vehicle width direction in the front portion of the cabin.
The cabin has a front upper frame that connects the first front pillar and the upper parts of the second front pillar.
The mounting bracket includes a first bracket fixed to the upper part of the first front pillar and a second bracket fixed to the upper part of the second front pillar.
The mounting plate includes a first plate attached to the first bracket and a second plate attached to the second bracket.
The horizontal rod portion is arranged in front of and above the front upper frame from above the first plate to above the second plate.
The vertical rod portion includes a first vertical rod portion extending downward from the end portion of the horizontal rod portion on the first plate side and fixed to the first plate, and the second plate of the horizontal rod portion. The work vehicle according to any one of claims 2 to 5, which includes a second vertical rod portion extending downward from a side end portion and fixed to the second plate.

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