Working vehicle
The harness for the satellite receiving device in work vehicles is routed along the ROP's outer surface and covered by a protective cover, addressing the challenge of easy routing and protection, ensuring efficient and interference-free operation.
Patent Information
- Application Number
- JP2025134292
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-01-06
AI Technical Summary
Existing work vehicles face challenges in easily routing the harness for a satellite receiving device due to its extension from the top of the ROP, necessitating improved routing and protection solutions.
The harness for the satellite receiving device is routed along the outer surface of a foldable ROP, covered by a protective cover, and positioned inside the vehicle to prevent external contact, with specific configurations such as routing between beam and support portions and using a cover that opens rearward for easy installation.
This configuration allows for easy and protected routing of the harness, reducing exposure and preventing external interference while maintaining effective satellite signal reception.
Smart Images

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Abstract
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 a work vehicle of the above type, for example, the work vehicle described in Patent Document 1 is already known. The work vehicle described in Patent Document 1 is equipped with a ROP (referred to in the document as "ROP
[26] ") located around the driver's seat, and a receiving device (referred to in the document as "receiving antenna
[51] ") that receives position information from a satellite. In the work vehicle described in Patent Document 1, the receiving device is supported on the top of the ROP. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-154501 Summary of the Invention [Problem to be solved by the invention]
[0004] In the work vehicle described in Patent Document 1, the harness for the receiving device needs to be extended downward from the top of the ROPs in order to connect it to the control device. In this case, there is room for consideration on how to route the harness so that it can be easily routed.
[0005] In view of the above circumstances, there is a demand for a work vehicle that allows for easy routing of a harness for a receiving device. [Means for solving the problem]
[0006] The feature of the present invention is that the driver's seat is provided around the was a receiver supported on the upper part of the ROP and configured to receive position information from a satellite; a lamp attached to the support of the rope; a harness for the receiving device; teeth, the Rops The lower part is arranged behind the rope, and the lower part is arranged in front of the lamp at a position where it overlaps with the lamp in a front-rear view. The receiving device is arranged behind the rope and is provided at the upper part of the rope. The key is being connected. It is also preferable that the ROPs be configured so as to be foldable rearward around an axis extending in the left-right direction of the aircraft body. Another feature of the present invention is that it comprises a rope provided around the driver's seat, and a receiving device supported on the top of the rope and receiving positional information from a satellite, with a harness for the receiving device routed along the outer surface of the rope and a cover covering the harness.
[0007] This characteristic configuration allows the harness to be easily routed along the outer surface of the rope. Also, by covering the harness with a cover, the harness is protected and the appearance is improved by reducing the exposure of the harness.
[0008] Furthermore, in the present invention, it is preferable that the harness is routed along the inner portion of the outer surface of the rope facing toward the inside of the aircraft, and that the cover is configured to cover the harness from the front and below.
[0009] According to this characteristic configuration, the harness is positioned inside the aircraft relative to the ROPS, which prevents other objects from coming into contact with the harness from outside the aircraft. Furthermore, by covering the harness from the front and bottom, the harness can be less exposed to the driver's seat.
[0010] Furthermore, in the present invention, it is preferable that the ROPS has a pair of left and right support portions located laterally outward from the driver's seat and extending in the vertical direction, and a beam portion located above the driver's seat and extending in the left-right direction of the aircraft, the receiving device being supported by the beam portion, the harness being routed between the beam portion and the support portion, and the cover extending between the beam portion and the support portion.
[0011] According to this characteristic configuration, the receiver is supported on a beam located at a relatively high position of the ROPS. This allows the receiver to receive location information effectively without being affected by obstacles. Furthermore, by routing the harness between the beam and the support, the harness can be easily extended downward from the beam. Furthermore, because the cover extends between the beam and the support, the harness can be covered over a long distance between the beam and the support.
[0012] Furthermore, in the present invention, it is preferable that the cover be formed in a cross section that opens rearward so that the harness can enter the interior of the cover from the rear.
[0013] According to this characteristic configuration, the harness can be easily installed by inserting the harness into the interior of the cover from the rear of the cover.
[0014] Furthermore, in the present invention, it is preferable that the harness is fixed to the cover by a fixing member.
[0015] According to this characteristic configuration, the harness can be prevented from coming off the cover. [Brief explanation of the drawings]
[0016] [Figure 1] FIG. 2 is a left side view showing the tractor. [Figure 2] FIG. 2 is a plan view showing the tractor. [Figure 3] FIG. [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. 3. [Figure 5] FIG. 4 is a rear view showing the harness and the harness cover. [Figure 6] FIG. 2 is a perspective view showing a harness and a harness cover. [Figure 7] 7 is a cross-sectional view taken along the line VII-VII in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION
[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 configured, for example, 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 also 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 is provided in the rear half of the traveling machine body 1, and the driver's section 6 is provided with a driver's seat 7 in which the driver sits, and a steering handle 8 for steering the traveling machine body 1. A rope 9 is provided around the driver's seat 7. A link mechanism 10 is provided at the rear end of the traveling machine body 1, to which a work implement (not shown), such as a rotary tiller, is attached.
[0020] This tractor is equipped with a GPS antenna unit 11 (receiving device) and an inertial measurement unit (not shown). The GPS antenna unit 11 is a device that receives position information from GPS (Global Positioning System) satellites and measures the position of the traveling vehicle 1 based on the received position information. The inertial measurement unit is a device that measures inertial information (yaw angle, pitch angle, roll angle, etc.) of the traveling vehicle 1. This tractor is equipped with an automatic steering mechanism (not shown) that automatically steers the traveling vehicle 1 so that the traveling vehicle 1 travels along a target traveling route based on the position of the traveling vehicle 1 measured by the GPS antenna unit 11 and the inertial information of the traveling vehicle 1 measured by the inertial measurement unit.
[0021] [ROPS] 3 and 4, the ROPS 9 is provided with a pair of left and right support pillars 9A located laterally outward of the driver's seat 7 and extending in the vertical direction, and a beam 9B located above the driver's seat 7 and extending in the left-right direction of the vehicle. The ROPS 9 is configured to be foldable rearward around an axis X1 extending in the left-right direction of the vehicle.
[0022] A rear combination lamp 12 is attached to each of the left and right support pillars 9A. A mounting portion 9a to which the rear combination lamp 12 is attached is provided on each of the left and right support pillars 9A. A slow vehicle mark 13 is attached to the beam portion 9B. The slow vehicle mark 13 is positioned at a location offset to the left of the lateral center C1 of the beam portion 9B (the lateral center of the aircraft).
[0023] [GPS antenna unit] As shown in Figures 3 to 7, the GPS antenna unit 11 is supported on the upper part of the ROPS 9. Specifically, the GPS antenna unit 11 is supported at the left-right center of the beam 9B with its left-right center coinciding with the left-right center of the aircraft (the left-right center C1 of the beam 9B). A GPS stay 14 that supports the GPS antenna unit 11 is provided at the left-right center of the beam 9B. The GPS stay 14 is supported (cantilevered) by the beam 9B in a state where it protrudes rearward from the beam 9B. The GPS stay 14 is fixed to the beam 9B by a bolt 15 that passes through the beam 9B from the front. The GPS antenna unit 11, while mounted and supported on the GPS stay 14, is fixed to the GPS stay 14 by a bolt 16 that passes through the GPS stay 14 from below.
[0024] [Harness] A harness 17 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 17 is routed along the outer peripheral surface of the ROPS 9. Specifically, the harness 17 is routed along an inner portion S of the outer peripheral surface of the ROPS 9 that faces the inside of the aircraft. The harness 17 is routed from the right side of the GPS antenna unit 11 to the side opposite (the right side) from the side where the low-speed vehicle mark 13 is located relative to the GPS antenna unit 11, and is routed between the right side of the beam portion 9B and the right support portion 9A. The harness 17 extends downward along the front surface of the right mounting portion 9a, and penetrates a portion of the right fender 3 rearward of the axis X1 to the control device.
[0025] 〔cover〕 A cover 18 is provided to cover the harness 17. The cover 18 extends from the right side of the beam 9B to the upper part of the right support pillar 9A. The harness 17 is fixed to the cover 18 (vertical part 18a) and the right mounting part 9a by a fastener 19. The cover 18 has a portion that fits along the right side of the beam 9B, a portion that fits along the upper part of the right support pillar 9A, and a portion that fits along the curved part that connects the beam 9B and the right support pillar 9A. The cover 18 is configured to cover the harness 17 from the front and from the side facing the inner side part S (below and laterally inward, etc.). The cover 18 has a cross-sectional shape (approximately L-shaped) that opens rearward so that the harness 17 can enter the interior of the cover 18 from the rear. The cover 18 has a vertical portion 18a that is perpendicular to the inner side portion S, and a bottom portion 18b that extends rearward from the end of the vertical portion 18a opposite the inner side portion S in a state parallel to the inner side portion S.
[0026] [Another embodiment] (1) In the above embodiment, the harness 17 is routed along the inner portion S of the outer surface of the ROPS 9 that faces the inside of the aircraft. However, the harness 17 may also be routed along the outer portion S of the outer surface of the ROPS 9 that faces the outside of the aircraft (the front, rear, top and side outer surfaces of the ROPS 9, etc.).
[0027] (2) In the above embodiment, the harness 17 is routed between the right side of the beam 9B and the right support 9A. However, the harness 17 may be routed between the left side of the beam 9B and the left support 9A.
[0028] (3) In the above embodiment, the cover 18 extends over the right side of the beam 9B and the upper part of the right support pillar 9A. That is, the cover 18 does not cover the portion of the harness 17 below the upper part of the right support pillar 9A. However, the cover 18 may extend over the right side of the beam 9B and the lower part of the right support pillar 9A. That is, the cover 18 may also cover the portion of the harness 17 below the upper part of the right support pillar 9A.
[0029] (4) In the above embodiment, the cover 18 is formed with a cross-sectional shape that opens toward the rear so that the harness 17 can enter the interior of the cover 18 from the rear. However, the cover 18 may be formed with a cross-sectional shape that opens toward the front so that the harness 17 can enter the interior of the cover 18 from the front. Alternatively, the cover 18 may be formed with a substantially U-shaped cross-sectional shape (a cross-sectional shape that does not open toward the front, rear, or downward). [Industrial Applicability]
[0030] 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]
[0031] 1 Running body 7 Driver's seat 9 Rops 9A Strut part 9B Beam section 11 GPS antenna unit (receiver) 17 Harness 19 Fixtures S Inner part X1 axis center
Claims
1. The ropes installed around the driver's seat, a receiving device supported on the upper part of the ROPS and receiving position information from a satellite; a lamp attached to the support of the rope; The harness for the receiving device is routed behind the rope at the bottom of the rope, and in front of the lamp at a position where it overlaps with the lamp when viewed from the front to back, and the work vehicle is connected to the receiving device provided at the top of the rope at the rear of the rope.
2. A work vehicle as described in Claim 1, wherein the ROPUS is configured to be foldable rearward around an axis extending in the left-right direction of the vehicle body.
Citation Information
Patent Citations
Farm work support system
JP2016154501A