Work vehicle

Abstract

To provide a working vehicle capable of being provided with a canopy member and securing visibility of a beacon lamp.SOLUTION: A tractor 1 as a work vehicle includes a driver's seat 30 on which a driver is seated, a protective frame 4 having a vertical frame 40 erected on the rear side of the driver's seat 30, and a beacon lamp 5 attached to the vertical frame 40. For example, the beacon lamp 5 is disposed outside the vertical frame 40 in the left-right direction and below the lateral frame 41.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Because work vehicles such as tractors travel on roads at slower speeds than automobiles, they are equipped with beacon lamps and slow-moving vehicle marks (so-called SMV marks) to alert others to the presence of the vehicle. The beacon lamps and slow-moving vehicle marks are preferably placed in locations that are easily visible from the surrounding area, and are attached, for example, to the protective frame of the tractor's roll-over protective structure (ROPS).

[0003] For example, in the work vehicle disclosed in Patent Document 1, a protective frame is erected to protect the driver seated in the driver's seat in the event of a vehicle rollover. The protective frame has a lower protective frame fixed to the base frame and an upper protective frame that is foldably connected to the lower protective frame, and a beacon lamp (low-speed vehicle indicator light) is attached to the horizontal frame portion that constitutes the upper protective frame. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-163025 Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional work vehicles such as those described in Patent Document 1, the beacon lamp is attached to the upper side of the protective frame, making it impossible to provide a roof member such as a canopy on the protective frame. Furthermore, this protective frame does not have a space for placing a slow-moving vehicle mark. Some work vehicles have a protective frame with a rotating shaft extending in the left-right direction, making the protective frame foldable. However, if the beacon lamp is attached to the upper side of the protective frame, there is a risk that the beacon lamp will interfere with surrounding components when the protective frame is rotated.

[0006] An object of the present invention is to provide a work vehicle that can be provided with a canopy member and that can ensure the visibility of a beacon lamp. [Means for solving the problem]

[0007] In order to solve the above problem, the work vehicle of the present invention is characterized by comprising a driver's seat, a protective frame having a vertical frame erected behind the driver's seat, and a beacon lamp attached to the vertical frame. [Effects of the Invention]

[0008] According to the present invention, a work vehicle is provided that can be provided with a canopy member and can ensure the visibility of a beacon lamp. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a side view schematically showing a tractor according to an embodiment of the present invention. [Figure 2] 1 is a rear view schematically showing a tractor according to an embodiment of the present invention. FIG. [Figure 3] 1 is a side view showing a state in which a canopy member is attached to a tractor according to an embodiment of the present invention. [Figure 4] FIG. 2 is a rear perspective view showing a state in which the protective frame of the tractor according to the embodiment of the present invention is tilted. [Figure 5]FIG. 2 is a rear side view showing a state in which the protective frame of the tractor according to the embodiment of the present invention is tilted. DETAILED DESCRIPTION OF THE INVENTION

[0010] The work vehicle of the present invention is a vehicle that travels in a field while performing work using a work implement. A tractor 1, which is one embodiment of the work vehicle of the present invention, will be described with reference to the drawings. Fig. 1 is a side view of the tractor 1, and Fig. 2 is a rear view of the tractor 1.

[0011] As shown in Figures 1 and 2, the tractor 1 includes a body 2 and an implement (not shown), and is configured to perform work such as plowing using the implement while traveling using the body 2. In the tractor 1, implements such as a rotary, harrow, loader, box scraper, etc. for performing various tasks are attached to the body 2 as needed. In this embodiment, the tractor 1 is particularly equipped with a protective frame 4 of a rollover protective structure (ROPS), and a beacon lamp 5 and a slow-moving vehicle mark 6 (so-called SMV mark) that notify those around it of the presence of the vehicle.

[0012] A pair of left and right front wheels 10 are provided on the lower front side of the vehicle body 2, and a pair of left and right rear wheels 11 are provided on the lower rear side of the vehicle body 2. In this embodiment, as shown in Fig. 1, an example will be described in which the front wheels 10 are configured as tires and the rear wheels 11 are configured as tires, but in other examples, the rear wheels 11 may be configured as half crawlers, or full crawlers may be provided instead of the front wheels 10 and the rear wheels 11.

[0013] An engine 12 is built into the front part of the vehicle body 2 and is covered by a hood 17. A transmission 13 is provided behind the engine 12 between a pair of left and right rear wheels 11. The power of the engine 12 is transmitted to the transmission 13, where it is changed in speed before being transmitted to each of the front wheels 10 and each of the rear wheels 11. A work implement lifting mechanism 14 and a work implement angle changing mechanism 15 are provided at the rear part of the vehicle body 2 as drive units that drive the work implement using the hydraulic pressure of the working oil.

[0014] A pair of left and right lower links 20, a top link 21, and a PTO shaft 22 are connected to the rear of the transmission 13, and the lower links 20, top links 21, and PTO shaft 22 are arranged to extend rearward. The work equipment is connected to the rear ends of the lower links 20, top links 21, and PTO shaft 22, and is driven by the PTO shaft 22.

[0015] The work implement lifting mechanism 14 includes a pair of left and right lift arms (not shown) and a lift cylinder (not shown) formed by a hydraulic cylinder. The tip of one (left) lift arm is connected to one (left) lower link 20 via a link member 23, and the tip of the other (right) lift arm is connected to the other (right) lower link 20 via a rolling cylinder 24. The work implement lifting mechanism 14 can change the height of the work implement supported by the vehicle body 2 by driving the lift cylinder with the hydraulic pressure of the hydraulic oil supplied from a hydraulic pump (not shown) of the transmission 13.

[0016] The work implement angle change mechanism 15 is equipped with a rolling cylinder 24 formed by a hydraulic cylinder. As described above, the rolling cylinder 24 is configured to connect the other lift arm and the other lower link 20. The work implement angle change mechanism 15 can change the left-right tilt attitude of the work implement supported on the vehicle body 2 by driving the rolling cylinder 24 with the hydraulic pressure of the working oil supplied from the hydraulic pump of the transmission 13.

[0017] A driver's seat 30 where the driver sits is provided on the upper part of the vehicle body 2, and various operating tools are provided around the driver's seat 30. A step 31 is provided below the driver's seat 30 to serve as a step when the driver gets on and off the driver's seat 30. A side mirror 32 is provided in front of the driver's seat 30 so that the driver seated in the driver's seat 30 can check behind.

[0018] For example, a handle 33 for steering the front wheels 10 is provided as an operating tool in front of the driver's seat 30. Around the handle 33, there are provided a lift lever (not shown) for forcibly moving the work implement to the highest position or the lowest position, a forward / reverse switch lever (not shown) for switching the direction of travel of the vehicle body 2 between forward and reverse, and the like. Various pedals 34 operated by the driver are provided on the floor below the handle 33. The various pedals 34 include a brake pedal for braking the vehicle body 2, a clutch pedal for operating a clutch (not shown) that switches between transmitting and disconnecting power, an accelerator pedal for accelerating and decelerating the rotation speed of the engine 12 (vehicle speed of the vehicle body 2), and the like.

[0019] Additionally, a protective frame 4 of a roll-over protective structure (ROPS) for protecting a driver seated in the driver's seat 30 is erected on the vehicle body 2 behind the driver's seat 30. Attached to the protective frame 4 are a safety guard 35 that shields the operating tools and the like around the driver's seat 30 so that they cannot be touched from the rear of the vehicle body 2, and a work lamp 36 that illuminates the area being worked on behind the work equipment. As shown in FIG. 3, the protective frame 4 is configured so that a roof member 37 such as a canopy can be attached.

[0020] The protective frame 4 has a pair of vertical frames 40 and a horizontal frame 41. The pair of vertical frames 40 are erected on both left-right ends behind the driver's seat 30, and are arranged, for example, extending in the up-down direction. The horizontal frame 41 is arranged extending in the horizontal direction so as to bridge the pair of vertical frames 40, and is provided, for example, on the upper end side of the pair of vertical frames 40. A canopy member 37 can be attached to the upper surface side of the horizontal frame 41, and the pair of vertical frames 40 may be configured to be able to support the canopy member 37.

[0021] As shown in Figures 4 and 5, the protective frame 4 is configured to be foldable so as to be stored when the tractor 1 is not being driven. For example, the protective frame 4 has a rotating shaft 42 extending in the left-right direction at the end of a pair of vertical frames 40, and is provided so as to be rotatable about the rotating shaft 42 between an upright state (see Figures 1, 2, and 3) and a tilted state (see Figures 4 and 5).

[0022] Specifically, the vehicle body 2 is provided with a support frame 43 for rotatably supporting the protective frame 4, and the protective frame 4 has a rotating frame 44 having a rotating shaft 42 provided at the end of the vertical frame 40. The rotating shaft 42 of the rotating frame 44 is pivotally supported by the support frame 43, thereby making the protective frame 4 rotatable. The rotating frame 44 has a fixing hole 45 for an upright state and a fixing hole 46 for a tilted state, and the protective frame 4 is maintained in either the upright state or the tilted state by fixing a fixing shaft 47 to the support frame 43 via either the fixing hole 45, 46. Figures 1, 2, and 3 show a state in which the fixing shaft 47 is inserted into the fixing hole 45 for the upright state, and Figures 4 and 5 show a state in which the fixing shaft 47 is inserted into the fixing hole 46 for the tilted state.

[0023] In this embodiment, the tractor 1 travels on roads at a slower speed than automobiles and so is provided with a beacon lamp 5 and a slow vehicle mark 6 (so-called SMV mark) that notify those around it of the presence of the vehicle.

[0024] The beacon lamp 5 lights up to alert the surrounding area to the presence of a vehicle, and is attached to one of the vertical frames 40 of the protective frame 4, for example, the vertical frame 40 on the vehicle traffic side (left side). The beacon lamp 5 is disposed below the horizontal frame 41 of the protective frame 4 and above the rotation shaft 42, on the outside of the vertical frame 40 in the left-right direction.

[0025] The beacon lamp 5 has an attachment portion 51 and a lighting portion 52 connected to the attachment portion 51, and is attached to the vertical frame 40 by the attachment portion 51, while the lighting portion 52 is provided outside the vertical frame 40 in the left-right direction. The beacon lamp 5 is disposed in a position where the lighting portion 52 does not overlap the side mirror 32 and does not interfere with the turn signal 7. Although not shown, the harness of the beacon lamp 5 is fixed to the attachment portion 51, the attachment member of the low-speed vehicle mark 6, other members, etc., and is disposed so as not to interfere with other components when the protective frame 4 is rotated.

[0026] The slow-moving vehicle mark 6, whose shape and fluorescent or reflective material indicate that it is a slow-moving vehicle, is placed on the same side as the beacon lamp 5, for example, attached to the vertical frame 40 on the same side as the beacon lamp 5. The slow-moving vehicle mark 6 is placed below the horizontal frame 41 of the protective frame 4 and above the pivot shaft 42, and inside the vertical frame 40 in the left-right direction.

[0027] The beacon lamps 5 and the slow-moving vehicle mark 6 are positioned so that they do not interfere with surrounding components when the protective frame 4 is in an upright position, and also so that they do not interfere with the safety guards 35, work lamps 36, work equipment, license plates, or other surrounding components when the protective frame 4 is rotated to a tilted position, as shown in Figures 4 and 5.

[0028] As described above, according to this embodiment, the tractor 1, which is a work vehicle, is equipped with a driver's seat 30 in which a driver sits, a protective frame 4 having a vertical frame 40 erected behind the driver's seat 30, and a beacon lamp 5 attached to the vertical frame 40.

[0029] This allows the canopy member 37 to be attached to the protective frame 4 on the tractor 1 regardless of whether the beacon lamp 5 is installed, and also ensures the visibility of the beacon lamp 5 regardless of the positioning of the protective frame 4 and the canopy member 37.

[0030] According to this embodiment, the beacon lamps 5 are disposed outside the vertical frames 40 in the left-right direction.

[0031] As a result, the beacon lamp 5 is disposed in a position on the tractor 1 that is easily visible from the surroundings, thereby improving the visibility of the beacon lamp 5.

[0032] According to this embodiment, the protective frame 4 has a horizontal frame 41 that is arranged to extend in the horizontal direction, and the beacon lamp 5 is arranged below the horizontal frame 41.

[0033] As a result, in the tractor 1, the canopy member 37 can be attached to the horizontal frame 41 of the protective frame 4 regardless of the installation of the beacon lamp 5, and the visibility of the beacon lamp 5 can be ensured regardless of the positioning of the horizontal frame 41 and the canopy member 37.

[0034] According to this embodiment, the beacon lamp 5 is attached to the vertical frame 40 arranged on one side in the left-right direction, and the slow vehicle mark 6 is arranged on the same side as the beacon lamp 5 in the left-right direction.

[0035] As a result, in the tractor 1, the canopy member 37 can be attached to the protective frame 4 regardless of the installation of the beacon lamp 5 and the slow vehicle mark 6, and the visibility of the beacon lamp 5 and the slow vehicle mark 6 can be ensured regardless of the positioning of the protective frame 4 and the canopy member 37.

[0036] According to this embodiment, the slow vehicle mark 6 is arranged on the vertical frame 40 to which the beacon lamp 5 is attached.

[0037] As a result, in the tractor 1, by arranging the beacon lamp 5 and the slow vehicle mark 6 close to each other, simultaneous visibility of the beacon lamp 5 and the slow vehicle mark 6 can be ensured.

[0038] According to this embodiment, the low-speed vehicle mark 6 is disposed inside the vertical frame 40 in the left-right direction.

[0039] As a result, in the tractor 1, by providing the beacon lamps 5 and the slow vehicle marks 6 on both sides of the vertical frame 40, the beacon lamps 5 and the slow vehicle marks 6 can be positioned close to each other at the same height, ensuring simultaneous visibility of the beacon lamps 5 and the slow vehicle marks 6.

[0040] According to this embodiment, the protective frame 4 is provided rotatably around a rotation shaft 42 extending in the left-right direction, and the beacon lamp 5 and the low-speed vehicle mark 6 are disposed above the rotation shaft 42.

[0041] As a result, in the tractor 1, the protective frame 4 can be rotated to a tilted state and stored regardless of whether the beacon lamp 5 and the slow vehicle mark 6 are installed, and when the protective frame 4 is rotated, interference between the beacon lamp 5 and the slow vehicle mark 6 and surrounding components can be prevented.

[0042] In the above embodiment, an example was described in which the work vehicle of the present invention is configured as a tractor 1, but the present invention is not limited to this example, and the work vehicle of the present invention may be configured as a work vehicle such as another agricultural work machine.

[0043] Furthermore, the present invention can be modified as appropriate within the scope that does not contradict the gist or concept of the invention that can be read from the claims and the entire specification, and work vehicles that involve such modifications are also included in the technical concept of the present invention.

[0044] [Appendix to the invention] The following is a summary of the invention extracted from the above-described embodiment. Note that the configurations and processing functions described in the following supplementary notes can be selected and combined as desired.

[0045] <Appendix 1> The driver's seat and a protective frame having a vertical frame erected behind the driver's seat; A work vehicle comprising: a beacon lamp attached to the vertical frame.

[0046] <Appendix 2> The work vehicle described in Appendix 1, wherein the beacon lamp is arranged outside the vertical frame in the left-right direction.

[0047] <Appendix 3> The protective frame has a horizontal frame extending in a horizontal direction, 3. The work vehicle according to claim 1, wherein the beacon lamp is disposed below the lateral frame.

[0048] <Appendix 4> The beacon lamp is attached to the vertical frame disposed on one side in the left-right direction, 4. The work vehicle according to any one of claims 1 to 3, wherein a slow vehicle mark is arranged on the same side as the beacon lamp in the left-right direction.

[0049] <Appendix 5> The work vehicle described in Appendix 4, wherein the low-speed vehicle mark is arranged on the vertical frame to which the beacon lamp is attached.

[0050] <Appendix 6> 6. The work vehicle according to any one of claims 4 to 5, wherein the low-speed vehicle mark is arranged inside the vertical frame in the left-right direction.

[0051] <Appendix 7> the protective frame is provided rotatably around a rotation axis extending in the left-right direction, 7. The work vehicle according to any one of claims 4 to 6, wherein the beacon lamp and the low-speed vehicle mark are disposed above the rotation shaft.

[0052] <Appendix 8> The protective frame is provided so as to be rotatable between an upright state and a tilted state, 8. The work vehicle according to claim 7, wherein the beacon lamp and the low-speed vehicle mark are positioned so as not to interfere with surrounding components when in the tilted state. [Explanation of symbols]

[0053] 1 Tractor (work vehicle) 2. Body 4 Protective Frame 5 Beacon Lamp 6 Slow Vehicle Mark 7 Turn signal 30 Driver's seat 31 steps 32 Side mirror 33 Handle 34 pedals 35 Safety Guard 36 Work Lamp 37 Canopy member 40 vertical frame 41 Horizontal frame 42 Rotating shaft 43 Support Frame 44 Rotating frame 45 Fixing hole 46 Fixing hole 47 Fixed axis 51 Mounting part 52 Lighting section

Claims

1. The driver's seat and a protective frame having a vertical frame erected behind the driver's seat; A work vehicle comprising: a beacon lamp attached to the vertical frame.

2. The work vehicle according to claim 1, wherein the beacon lamp is disposed outside the vertical frame in the left-right direction.

3. The protective frame has a horizontal frame extending in a horizontal direction, The work vehicle according to claim 1 , wherein the beacon lamp is disposed below the lateral frame.

4. The beacon lamp is attached to the vertical frame disposed on one side in the left-right direction, 2. The work vehicle according to claim 1, wherein a slow vehicle mark is arranged on the same side as the beacon lamp in the left-right direction.

5. 5. The work vehicle according to claim 4, wherein the low-speed vehicle mark is arranged on the vertical frame to which the beacon lamp is attached.

6. 5. The work vehicle according to claim 4, wherein the low-speed vehicle mark is arranged inside the vertical frame in the left-right direction.

7. the protective frame is provided rotatably around a rotation axis extending in the left-right direction, 5. The work vehicle according to claim 4, wherein the beacon lamp and the low-speed vehicle mark are disposed above the pivot shaft.

8. The protective frame is provided so as to be rotatable between an upright state and a tilted state, 8. The work vehicle according to claim 7, wherein the beacon lamp and the low-speed vehicle mark are arranged so as not to interfere with surrounding components when the work vehicle is in the tilted state.

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