Work vehicle

Abstract

To provide a working vehicle in which a supporting structure for a receiving device can be simply constituted.SOLUTION: A working vehicle comprises a cabin, a receiving device 11, and a stay 22. The stay 22 comprises longitudinal members 23 and 34 straddling a front part of a roof 12 in a right-left direction of a machine body from above. The receiving device 11 is supported by the longitudinal members 23 and 34. Left end parts of the longitudinal members 23 and 34 are fixed to a supporting part 17a supporting a side mirror 21 of a left side front pillar 17 while two plates of fixed parts 27 in the longitudinal members 23 and 34 sandwich the supporting part 17a, and right end parts of the longitudinal members 23 and 34 are fixed to a supporting part 17a supporting a side mirror 21 of a right side front pillar 17 while the two plates of the fixed parts 27 in the longitudinal members 23 and 34 sandwich the supporting part 17a.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a work vehicle equipped with a receiving device that receives position information from a satellite. [Background technology]

[0002] As an example of such a work vehicle, the work vehicle described in Patent Document 1 is already known. The work vehicle described in Patent Document 1 is equipped with a cabin (referred to as "cabin [4]" in the document) that covers the driver's section, and a receiving device (referred to as "antenna unit

[61] " in the document) that receives position information from a satellite. In the work vehicle described in Patent Document 1, the receiving device is attached to the upper surface of the roof of the cabin in order to receive position information from the satellite well. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-114924 A Summary of the Invention [Problem to be solved by the invention]

[0004] The work vehicle described in Patent Document 1 requires a roof (dedicated roof) on which the receiving device can be attached, and the support structure for the receiving device becomes large-scale. In addition, in this case, it is necessary to drill holes in the roof, which may allow water to enter the cabin through the holes.

[0005] In view of the above circumstances, there is a demand for a work vehicle that allows the support structure for the receiving device to be simply configured. [Means for solving the problem]

[0006] The present invention has a feature that a vehicle steering system includes a cabin that covers a driver's section, a receiving device that receives position information from a satellite, and a stay that supports the receiving device, the receiving device is disposed above a roof of the cabin and is supported by a cabin frame of the cabin via the stay, the stay has a longitudinal member that spans a front portion of the roof from above in the left-right direction of the aircraft, the receiving device is supported by the longitudinal member, the longitudinal member has a first portion that extends linearly in the left-right direction of the aircraft, a second portion that extends downward from a left end of the first portion, and a third portion that extends downward from a right end of the first portion, a harness that connects the receiving device and the control device is routed along a rear portion of the first portion in the fore-aft direction of the aircraft, and In the longitudinal direction of the aircraft, a fastener is fixed to a rear portion of the first portion so as not to cover the front of the first portion. It is fixed to the rear portion of the first part.

[0007] According to this characteristic configuration, the receiving device is disposed above the roof, so that position information from the satellite can be received well. Also, by supporting the receiving device on the cabin frame via stays, a roof (dedicated roof) on which the receiving device can be mounted is not required, so the support structure for the receiving device can be configured simply, and the receiving device can be firmly supported by the cabin frame, which is a relatively rigid part of the cabin. Moreover, since there is no need to drill holes in the roof, there is no risk of water entering the cabin through the holes.

[0008] Furthermore, the present invention Another feature of , a cabin covering a driver's section, a receiving device for receiving position information from a satellite, and a stay supporting the receiving device, the receiving device being disposed above a roof of the cabin and supported by a cabin frame of the cabin via the stay, the stay having a longitudinal member spanning a front portion of the roof from above in a left-right direction of the aircraft, the receiving device being supported by the longitudinal member, the longitudinal member having a first portion extending linearly in the left-right direction of the aircraft, a second portion extending downward from a left end of the first portion, and a third portion extending downward from a right end of the first portion, a harness connecting the receiving device and a control device being routed along a rear portion of the first portion in the fore-aft direction of the aircraft and being fixed to the rear portion of the first portion, The first portion is provided with a cover for covering the harness, and the harness is fixed to a rear portion of the first portion via the cover. Kotoa do.

[0009]

[0010] Furthermore, in the present invention, it is preferable that the harness extends to the inside of the roof.

[0011]

[0012] Furthermore, in the present invention, it is preferable that the harness is led out from a side surface of the receiving device.

[0013]

[0014] Furthermore, in the present invention, it is preferable that the harness is fixed to a fixed portion of the longitudinal member which is fixed to the cabin frame.

[0015] [Brief description of the drawings]

[0016] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a front view showing the upper part of the cabin. [Figure 4] FIG. 4 is a plan view showing the front part of the cabin. [Diagram 5] FIG. 2 is an exploded perspective view showing the support structure of the GPS antenna unit. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] 13 is a right side view showing a state in which the right end portion of the stay is supported by the support portion. FIG. [Figure 8] 13 is a left side view showing a state in which the left end portion of the stay is supported by the support portion. FIG. [Figure 9] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

[0018] [Overall configuration of the tractor] 1 and 2 show a tractor (work vehicle). This tractor is equipped with a running machine body 1. The running machine body 1 is, for example, configured as a four-wheel drive running machine body. The running machine body 1 is equipped with a pair of left and right front wheels 2F that can be driven and steered, and a pair of left and right rear wheels 2B that can be driven. A pair of left and right fenders 3 are provided to cover the pair of left and right rear wheels 2B, respectively.

[0019] A prime mover 4 is provided in the front half of the traveling machine body 1. The prime mover 4 is provided with an engine E and a bonnet 5 that houses the engine E. A driver's section 6 in which a driver sits and a cabin 7 that covers the driver's section 6 are provided in the rear half of the traveling machine body 1. The driver's section 6 is provided with a driver's seat 8 in which the driver sits and a steering wheel 9 for steering the traveling machine body 1. A link mechanism 10 is provided at the rear end of the traveling machine body 1 to which a work device (not shown) such as a rotary tilling device is attached.

[0020] [GPS antenna unit] This tractor is equipped with a GPS antenna unit 11 (receiving device) and an inertial measurement device (not shown). The GPS antenna unit 11 is a device that receives position information from a GPS (Global Positioning System) satellite and measures the position of the traveling body 1 based on the received position information. The inertial measurement device is a device that measures inertial information (yaw angle, pitch angle, roll angle, etc.) of the traveling body 1. This tractor is equipped with an automatic steering mechanism (not shown) that automatically steers the traveling body 1 so that the traveling body 1 travels along a target traveling route based on the position of the traveling body 1 measured by the GPS antenna unit 11 and the inertial information of the traveling body 1 measured by the inertial measurement device.

[0021] 〔cabin〕 As shown in Fig. 1 to Fig. 4, the cabin 7 is provided with a roof 12, a windshield 13, a pair of left and right boarding doors 14, and a cabin frame 15. The cabin frame 15 is provided with a roof frame 16 that supports the roof 12, a pair of left and right front pillars 17 that support a front portion of the roof 12, a pair of left and right rear pillars 18 that support a rear portion of the roof 12, and a pair of left and right center pillars 19 that support a front-rear intermediate portion of the roof 12. A pair of left and right work lights 20 is provided in front of the roof 12. A side mirror 21 is provided on each of the left front pillar 17 and the right front pillar 17. A support portion 17a that supports the side mirror 21 is provided on each of the left front pillar 17 and the right front pillar 17.

[0022] [Stay] 3 to 6, the GPS antenna unit 11 is disposed above the front part of the roof 12 with its lateral center coinciding with the lateral center C1 of the aircraft body, and is supported by the left front pillar 17 and the right front pillar 17 via stays 22. The stay 22 is provided across the left front pillar 17 and the right front pillar 17, straddling the front part of the roof 12 from above in the lateral direction of the aircraft body. The stay 22 is provided with a front support pipe 23 (longitudinal member) and a rear support pipe 24 that straddle the front part of the roof 12 from above in the lateral direction of the aircraft body, a base 25 on which the GPS antenna unit 11 is placed and supported, and a plate 26 that is interposed between the GPS antenna unit 11 and the base 25.

[0023] The GPS antenna unit 11 is supported by the front support pipe 23 and the rear support pipe 24 via a pedestal 25. A gap is provided between the front support pipe 23 and the rear support pipe 24 and the outer surface of the roof 12 over the entire front support pipe 23 and the rear support pipe 24. The front support pipe 23 is provided with a horizontal pipe section 23a (corresponding to a first portion) extending in the left-right direction of the aircraft, a vertical pipe section 23b (corresponding to a second portion) extending downward from the left end of the horizontal pipe section 23a, and a vertical pipe section 23b (corresponding to a third portion) extending downward from the right end of the horizontal pipe section 23a. The rear support pipe 24 is provided with a horizontal pipe section 24a extending in the left-right direction of the aircraft body, a diagonal pipe section 24b extending from the left end of the horizontal pipe section 24a toward the left front, a diagonal pipe section 24b extending from the right end of the horizontal pipe section 24a toward the right front, a vertical pipe section 24c extending downward from the left end of the left diagonal pipe section 24b, and a vertical pipe section 24c extending downward from the right end of the right diagonal pipe section 24b.

[0024] The left end portion of each of the front support pipe 23 and the rear support pipe 24 is fixed by a bolt to the support portion 17a of the left front pillar 17. That is, the left end portion of each of the front support pipe 23 and the rear support pipe 24 is supported by the support portion 17a of the left front pillar 17. A fixed portion 27 that is fixed to the support portion 17a of the left front pillar 17 is provided between the left end portion of the front support pipe 23 and the left end portion of the rear support pipe 24.

[0025] The right end portion of each of the front support pipe 23 and the rear support pipe 24 is fixed by a bolt to the support portion 17a of the right front pillar 17. That is, the right end portion of each of the front support pipe 23 and the rear support pipe 24 is supported by the support portion 17a of the right front pillar 17. A fixed portion 27 that is fixed to the support portion 17a of the right front pillar 17 is provided between the right end portion of the front support pipe 23 and the right end portion of the rear support pipe 24.

[0026] As shown in Fig. 7 to Fig. 9, the fixed part 27 includes a first plate 27a, a second plate 27b, and a third plate 27c. In the right fixed part 27, a radio antenna 28 is attached to the first plate 27a. The first plate 27a, the second plate 27b, and the third plate 27c are fixed by a bolt 29 while the second plate 27b abuts against the support part 17a from above and the first plate 27a and the third plate 27c sandwich the support part 17a from both sides. The first plate 27a, the third plate 27c, and the support part 17a are fixed by a bolt 30. The second plate 27b abuts against the support part 17a from above, thereby determining the height position of the stay 22.

[0027] 3 to 6, the base 25 is provided across the front support pipe 23 and the rear support pipe 24. The GPS antenna unit 11 is placed and supported on the base 25 via a plate 26. The front edge, rear edge, left edge, and right edge of the base 25 are each formed with a bent portion 25a that bends downward. The left bent portion 25a and the right bent portion 25a fit between the front support pipe 23 and the rear support pipe 24, thereby determining the front and rear positions of the base 25.

[0028] Plate 26 is fixed to the bottom surface of GPS antenna unit 11 by bolt 31 penetrating plate 26 from below, and is fixed to base 25 by bolt 32 penetrating plate 26 and base 25 from above. In base 25, relief hole 25b is formed to allow the head of bolt 31 to escape so that the head of bolt 31 does not interfere with base 25.

[0029] [Harness] A harness 33 for the GPS antenna unit 11 is provided between the GPS antenna unit 11 and a control device (not shown) that controls the automatic steering mechanism and the like. The harness 33 is routed along the outer periphery of the right part of the front support pipe 23, with the harness 33 pulled out rightward from the right part of the GPS antenna unit 11. The harness 33 extends from a recess 12a corresponding to the right work light 20 in the front edge part of the roof 12, through the front edge part of the roof frame 16, and into the inside of the roof 12. A cover 34 that covers the harness 33 is provided on the right part of the front support pipe 23. The harness 33 is fixed to the cover 34 and the first plate 27a of the right fixed part 27 by a fixing device 35.

[0030] [Another embodiment] (1) In the above embodiment, the GPS antenna unit 11 is disposed above the front part of the roof 12. However, the GPS antenna unit 11 may be disposed above the rear part of the roof 12. Alternatively, the GPS antenna unit 11 may be disposed above the middle part between the front and rear of the roof 12.

[0031] (2) In the above embodiment, the harness 33 is routed along the outer periphery of the right side portion of the front support pipe 23. However, the harness 33 may be routed along the outer periphery of the right side portion of the rear support pipe 24. Alternatively, the harness 33 may be routed through the inside of the right side portion of the front support pipe 23. Alternatively, the harness 33 may be routed through the inside of the right side portion of the rear support pipe 24.

[0032] (3) In the above embodiment, the harness 33 is pulled out to the right from the right side of the GPS antenna unit 11. However, the harness 33 may be pulled out to the left from the left side of the GPS antenna unit 11.

[0033] In this case, the harness 33 may be routed along the outer periphery of the left portion of the front support pipe 23. Alternatively, the harness 33 may be routed along the outer periphery of the left portion of the rear support pipe 24. Alternatively, the harness 33 may be passed through the inside of the left portion of the front support pipe 23. Alternatively, the harness 33 may be passed through the inside of the left portion of the rear support pipe 24.

[0034] (4) In the above embodiment, the left end of each of the front support pipe 23 and the rear support pipe 24 is supported by the support portion 17a of the left front pillar 17, and the right end of each of the front support pipe 23 and the rear support pipe 24 is supported by the support portion 17a of the right front pillar 17. However, the left end of each of the front support pipe 23 and the rear support pipe 24 may be supported by a portion of the left front pillar 17 other than the support portion 17a, and the right end of each of the front support pipe 23 and the rear support pipe 24 may be supported by a portion of the right front pillar 17 other than the support portion 17a. Alternatively, the left end of each of the front support pipe 23 and the rear support pipe 24 may be supported by a portion of the cabin frame 15 other than the left front pillar 17, and the right end of each of the front support pipe 23 and the rear support pipe 24 may be supported by a portion of the cabin frame 15 other than the right front pillar 17.

[0035] (5) The "longitudinal member" is not limited to two, the front support pipe 23 and the rear support pipe 24. The "longitudinal member" may be one or three or more. [Industrial Applicability]

[0036] The present invention can be used in a work vehicle (for example, a tractor) that is equipped with a receiving device that receives position information from a satellite. [Explanation of symbols]

[0037] 6 Driving section 7 Cabin 11 GPS antenna unit (receiving device) 12 Roof 15 Cabin frame 17 Front pillar 17a Support part 21 Side mirror 22 Stay 23 Front support pipe (longitudinal member) 23a Horizontal pipe section (first part) 23b Vertical pipe section (second section, third section) 25 Pedestal

Claims

1. A cabin covering the driver's section; A receiving device for receiving position information from a satellite; A stay for supporting the receiving device, the receiving device is disposed above a roof of the cabin and is supported by a cabin frame of the cabin via the stay, The stay has a longitudinal member that spans the front portion of the roof from above in the left-right direction of the aircraft body, The receiving device is supported on the longitudinal member, the longitudinal member has a first portion extending linearly in the left-right direction of the aircraft body, a second portion extending downward from a left end portion of the first portion, and a third portion extending downward from a right end portion of the first portion, A harness connecting the receiving device and the control device is routed along the rear portion of the first part in the fore-and-aft direction of the vehicle body, and is fixed to the rear portion of the first part by a fastener fixed to the rear portion of the first part so as not to cover the front of the first part in the fore-and-aft direction of the vehicle body.

2. A cabin covering the driver's section; A receiving device for receiving position information from a satellite; A stay for supporting the receiving device, the receiving device is disposed above a roof of the cabin and is supported by a cabin frame of the cabin via the stay, The stay has a longitudinal member that spans the front portion of the roof from above in the left-right direction of the aircraft body, The receiving device is supported on the longitudinal member, the longitudinal member has a first portion extending linearly in the left-right direction of the aircraft body, a second portion extending downward from a left end portion of the first portion, and a third portion extending downward from a right end portion of the first portion, a harness connecting the receiving device and the control device is routed along a rear portion of the first portion in a fore-aft direction of the aircraft body and is fixed to the rear portion of the first portion; The first portion is provided with a cover that covers the harness, The harness is fixed to a rear portion of the first portion via the cover.

3. 3. The work vehicle according to claim 1, wherein the harness extends to an inside of the roof.

4. 4. The work vehicle according to claim 1, wherein the harness is led out from a side surface of the receiving device.

5. The work vehicle according to claim 1 , wherein the harness is fixed to a fixed portion of the longitudinal member that is fixed to the cabin frame.

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