Work vehicle
The work vehicle design addresses the limitation of existing tractor designs by positioning the bonnet rotation fulcrum above the fuel tank and between the partition member and the steering column, thereby securing a larger open space for maintenance.
Patent Information
- Application Number
- JP2025064094
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-06-26
AI Technical Summary
Existing tractor designs do not effectively secure a large open space when the bonnet is rotated upward, limiting maintenance workability.
A work vehicle configuration featuring a partition member with a notch at its upper end, allowing the bonnet rotating portion to pass through, thereby positioning the rotation fulcrum above the fuel tank and between the partition member and the steering column.
This configuration secures a larger open space when the bonnet is rotated upward, enhancing maintenance workability by ensuring the rotation fulcrum is optimally positioned.
Smart Images

Figure 2025096463000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a work vehicle.
Background Art
[0002] Conventionally, a tractor has been proposed in which a bonnet is rotated vertically by the rotation of a hinge portion (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Securing a large open space when the bonnet is rotated upward is advantageous in that it can improve workability when performing maintenance on an engine or the like inside the bonnet. In terms of securing a large open space, there is room for improvement in the configuration of Patent Document 1.
[0005] The present invention has been made to solve the above problems, and an object thereof is to provide a work vehicle capable of securing a large open space when the bonnet is rotated upward.
Means for Solving the Problems
[0006] A work vehicle according to one aspect of the present invention includes an engine, a steering column, a partition member located between the engine and the steering column, a bonnet that covers the engine, and a bonnet rotating portion that rotatably supports the bonnet vertically. The partition member has a notch at an upper end portion, and the bonnet rotating portion is located through the notch.
Effects of the Invention
[0007] According to the above configuration, a large open space can be secured when the bonnet is rotated upward.
Brief Description of the Drawings
[0008]
Figure 1
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Mode for Carrying Out the Invention
[0009] Regarding the embodiments of the present invention, if explained based on the drawings, it is as follows. In this embodiment, a tractor is taken as an example of a work vehicle for explanation, but as work vehicles, in addition to tractors, various harvesting machines, rice transplanters, combines, civil engineering and construction work devices, and passenger-type work vehicles such as snow removal vehicles can be considered.
[0010] Also, in this specification, the directions are defined as follows. First, the direction in which the tractor as a work vehicle advances during work is defined as "front", and the opposite direction is defined as "rear". Also, the right side is defined as right and the left side is defined as left toward the advancing direction of the tractor. And the direction perpendicular to the front-rear direction and the left-right direction of the tractor is defined as the vertical direction. At this time, the direction of gravity is defined as down, and the opposite side is defined as up. In the drawings, the front direction is appropriately indicated by F, the rear direction by B, the left direction by L, the right direction by R, the up direction by U, and the down direction by D.
[0011] FIG. 1 is a side view showing a schematic configuration of a tractor 1 which is an example of a work vehicle of this embodiment. The tractor 1 includes a vehicle body 2. The front part of the vehicle body 2 is supported by a pair of left and right front wheels 3. The rear part of the vehicle body 2 is supported by a pair of left and right rear wheels 4.
[0012] At the front of the vehicle body 2, a bonnet 5 is arranged. Below the bonnet 5, an engine 6 as a drive source is arranged. That is, the tractor 1 includes the engine 6 and the bonnet 5 covering the engine 6. The engine 6 is composed of, for example, a diesel engine, but is not limited thereto, and may be composed of, for example, a gasoline engine.
[0013] Behind the engine 6 in the vehicle body 2, a driver's seat 7 on which an operator (driver) rides is provided. In the driver's seat 7, a steering wheel 8 for the driver to perform a steering operation and a driver's seat 9 are provided. The steering wheel 8 is rotatably supported by a steering column 10. That is, the tractor 1 includes the steering column 10 located in the driver's seat 7. In the driver's seat 7, an operation lever LV, a pedal P, etc. operated by the driver are also provided.
[0014] On the rear side of the vehicle body 2, a three-point link mechanism is provided. The three-point link mechanism includes a pair of left and right lower links 11 and an upper link (not shown). A working machine can be attached to the three-point link mechanism. As the working machine, for example, a tilling device, a plow, a fertilizing device can be used, but is not limited thereto. Also, on the rear side of the vehicle body 2, a lifting device (not shown) having a hydraulic device such as a lifting cylinder is provided. By the lifting device lifting the three-point link mechanism, the above-mentioned working machine can be lifted and lowered.
[0015] In the vehicle body 2, a ROPS frame 12 is provided at the rear of the driver's seat 7 (driver's seat 9). The tractor 1 of this embodiment is of a type in which the driver's seat 9 is not covered by a cabin. Therefore, the ROPS frame 12 is provided for the purpose of protecting the driver when the tractor 1 overturns.
[0016] In the vehicle body 2, a transmission case 13 is located behind the engine 6 and below the driver's seat 7. More specifically, the transmission case 13 is located below the steering column 10. A power transmission device (not shown) is disposed inside the transmission case 13. The rotational power of the engine 5 is transmitted to at least one of the front wheels 3 and the rear wheels 4 via the power transmission device inside the transmission case 13.
[0017] In the vehicle body 2, a dashboard 14 is disposed between the bonnet 5 and the steering column 10. FIG. 2 is a perspective view of the dashboard 14 as seen from the rear. The dashboard 14 has a first cover 141 and a second cover 142. The first cover 141 is made of a metal such as SUS.
[0018] The second cover 142 is located at the upper rear end of the first cover 141. The second cover 142 is made of resin. Examples of the resin include ABS (acrylonitrile-butadiene-styrene copolymer synthetic resin), PP (polypropylene resin), PE (polyethylene resin), PC (polycarbonate resin), and the like. A meter panel 142a indicating a speedometer, a fuel gauge, a water temperature gauge, etc. is installed at the rear end of the second cover 142.
[0019] FIG. 3 is a perspective view showing a state in which the first cover 141 of the dashboard 14 shown in FIG. 2 is removed. The tractor 1 includes a partition plate 20 which is a partitioning member. The partition plate 20 is a partition wall that partitions the inside of the bonnet 5 and the inside of the dashboard 14. The partition plate 20 is made of a metal plate having a thickness of, for example, about 10 mm. The partition plate 20 is located between the bonnet 5 and the steering column 10, and more specifically, between the engine 6 (see FIG. 1) inside the bonnet 5 and the steering column 10. Thereby, the heat radiated rearward from the engine 6 is blocked by the partition plate 20.
[0020] The tractor 1 is provided with a fuel tank 30. The fuel tank 30 is a container for storing fuel. The fuel in the fuel tank 30 is supplied to the engine 6 via a fuel hose by a feed pump 62 (see FIGS. 14 and 15) described later. The fuel tank 30 is located between the partition plate 20 and the steering column 10. The fuel tank 30 is supported by the partition plate 20 via a tank support portion 30a.
[0021] Note that the fuel tank 30 has a fuel receiving portion 90, and the fuel receiving portion 90 is configured to be connected to an oil leakage hose 91. Details thereof will be described later.
[0022] A lid member 52 described later is located above the partition plate 20. FIG. 4 is a perspective view showing the inside of the dashboard 14 (see FIG. 2) with the lid member 52 in FIG. 3 removed. Inside the dashboard 14, below the lid member 52, a bonnet rotation portion 40 is located. Details of the bonnet rotation portion 40 will be described below.
[0023] FIG. 5 is a perspective view showing the internal configuration of the bonnet 5 (see FIG. 2) and the dashboard 14. FIG. 6 is a perspective view showing an enlarged view of the bonnet rotation portion 40 in FIG. 5. The bonnet rotation portion 40 supports the bonnet 5 (see FIGS. 4 etc.) so as to be rotatable up and down. Such a bonnet rotation portion 40 has a rotation shaft portion 41, a support plate 42 which is a support member, a hinge 43, and a hinge stay 44.
[0024] The rotation shaft portion 41 is a portion that serves as the rotation shaft of the bonnet 5 and the hinge 43. The rotation shaft portion 41 extends in the left - right direction. The support plate 42 supports the bonnet 5 from the inside (from the engine 6 side). The hinges 43 are provided at two locations in the left - right direction. One end (front end) of each hinge 43 is fixed to the support plate 42. The other end (rear end) of each hinge 43 is fixed to both ends of the rotation shaft portion 41 respectively.
[0025] FIG. 7 is a perspective view showing an enlarged hinge stay 44 of the bonnet rotating part 40. Both ends of the above-mentioned rotating shaft part 41 are rotatably supported by the hinge stay 44. The hinge stay 44 is fixed to the partition plate 20 via a mounting stay (not shown). Therefore, the rotating shaft part 41 is rotatably supported by the partition plate 20 via the hinge stay 44 and the above-mentioned mounting stay.
[0026] FIG. 8 is a perspective view of the partition plate 20. The partition plate 20 has a notch 20a at its upper end. In the present embodiment, corresponding to the two hinges 43, notches 20a are provided at two positions in the left-right direction at the upper end of the partition plate 20. Each hinge 43 is located passing through the notch 20a of the partition plate 20 in the front-rear direction (see FIG. 5).
[0027] In the present embodiment, as shown in FIG. 5, the rotating shaft part 41 is located above the fuel tank 30 and between the partition plate 20 and the steering column 10. Thereby, the rotation fulcrum when the bonnet 5 is rotated by the bonnet rotating part 40 is located above the fuel tank 30 and between the partition plate 20 and the steering column 10. That is, the above-mentioned rotation fulcrum is located above the fuel tank 30 and behind the partition plate 20.
[0028] FIG. 9 is a side view schematically showing the position (closed state) of the bonnet 5 before rotation. FIG. 10 is a side view schematically showing the position (open state) of the bonnet 5 after rotation. As shown in FIGS. 9 and 10, when the rotating shaft part 41 is viewed from the side, the rotation center of the rotating shaft part 41 is herein referred to as the rotation fulcrum F.
[0029] Since the rotation fulcrum F is located above the fuel tank 30 and behind the partition plate 20, as compared with the configuration in which the rotation fulcrum F is located in front of the partition plate 20, it is possible to secure a larger open space when the bonnet 5 is rotated upward. In particular, the rear part inside the bonnet 5, that is, the part close to the partition plate 20 inside the bonnet 5 can be largely opened. Thereby, the workability when rotating the bonnet 5 for maintenance can be improved.
[0030] In particular, since the rotation shaft portion 41 of the bonnet rotation portion 40 is positioned between the partition plate 20 and the steering column 10, a configuration in which the rotation fulcrum F during the rotation of the bonnet 5 is positioned between the partition plate 20 and the steering column 10 can be surely realized.
[0031] Also, the hinge 43 of the bonnet rotation portion 40 is positioned through the notch portion 20a at the upper end portion of the partition plate 20. Thereby, the configuration of the present embodiment in which the rotation shaft portion 41 to which the hinge 43 connected via the bonnet 5 and the support plate 42 is fixed is positioned between the partition plate 20 and the steering column 10 can be surely realized.
[0032] As shown in FIGS. 4 and 5, the tractor 1 of the present embodiment includes a hinge cover 51. The hinge cover 51 is fixed to the rear surface (the surface on the steering column 10 side) of the partition plate 20.
[0033] FIG. 11 is a perspective view of the hinge cover 51. FIG. 12 is a perspective view showing a state in which the hinge cover 51 is attached to the partition plate 20. The hinge cover 51 is formed by bending a single flat plate. This hinge cover 51 has a first flat plate portion 51P, a second flat plate portion 51Q, a third flat plate portion 51R, and a fourth flat plate portion 51S.
[0034] The first flat plate portion 51P is a flat plate extending in the vertical direction and the horizontal direction. The first flat plate portion 51P is long in the horizontal direction and has an opening 51b. A hinge for rotating a lid 95 (see FIG. 2) that opens and closes a fuel filling port 92 (see FIG. 3) can be positioned in the opening 51b. Thereby, when the lid 95 is opened and closed, contact between the hinge and the hinge cover 51 can be avoided.
[0035] The second flat plate portion 51Q is a flat plate long in the horizontal direction and is connected to the lower end edge of the first flat plate portion 51P. The lower end edge of the second flat plate portion 51Q is positioned in front of the first flat plate portion 51P. Therefore, the second flat plate portion 51Q forms an obtuse angle with respect to the first flat plate portion 51P.
[0036] A through-hole 51a is formed in the second flat portion 51Q. That is, the hinge cover 51 has the through-hole 51a. As shown in FIG. 12, a hose H or a harness E (hereinafter referred to as a hose or the like) is inserted through the through-hole 51a. That is, the hose H or the like is positioned through the through-hole 51a of the hinge cover 51. Further, the hose H or the like that has passed through the through-hole 51a is positioned through the notch 20a of the partition plate 20 (see FIG. 14). In the present embodiment, the through-hole 51a of the hinge cover 51 is formed by a notch, but it may be formed by a hole. Further, the gap between the through-hole 51a and the hose H or the like is filled with a packing or the like. The hose H is a hose through which oil, water, fuel, or the like flows, but the fluid flowing through the hose H is not limited to these. The harness E is connected to, for example, an electrical component of the tractor 1.
[0037] Thus, by providing the through-hole 51a in the hinge cover 51 and arranging the hose H or the like so as to pass through the through-hole 51a and the notch 20a, the hose H or the like can be arranged without separately providing a dedicated through-hole for passing the hose H or the like in the partition plate 20. Therefore, since the above-described through-hole is not provided in the partition plate 20, the hot air of the engine 6 does not flow rearward (toward the steering column 10 side) through the above-described through-hole. Further, since the above-described through-hole is not provided in the partition plate 20, it is possible to avoid a decrease in the strength of the partition plate 20 due to the formation of the above-described through-hole.
[0038] The third flat portion 51R is a flat plate extending in the front-rear direction and the vertical direction, and is connected to the left end edge of the first flat portion 51P. Further, the lower end edge of the third flat portion 51R is inclined downward and forward. Thereby, the lower end edge of the third flat portion 51R contacts the left end edge of the second flat portion 51Q. The front end portion of the third flat portion 51R is bent outward to the left to form a fixing plate 51R1. Two through-holes 51h are formed vertically side by side in the fixing plate 51R1.
[0039] The fourth flat plate portion 51S is a flat plate extending in the front-rear direction and the up-down direction, and is connected to the right end edge of the first flat plate portion 51P. Also, the lower end edge of the fourth flat plate portion 51S is inclined downward and forward. Thereby, the lower end edge of the fourth flat plate portion 51S contacts the right end edge of the second flat plate portion 51Q. The front end portion of the fourth flat plate portion 51S is bent outward to the right to form a fixing plate 51S1. Two through holes 51h are formed vertically side by side in the fixing plate 51S1.
[0040] FIG. 13 is a perspective view showing the process of attaching the hinge cover 51 to the partition plate 20. The hinge cover 51 is attached to and fixed to the partition plate 20 by bolts or the like. Specifically, the fixing plates 51R1 and 51S1 are brought into surface contact with the partition plate 20 from the rear. In this state, bolts (not shown) are inserted into the through holes 51h of the fixing plates 51R1 and 51S1 and the through holes 20b provided in the partition plate 20, respectively, and fastened with nuts (not shown). Thereby, the hinge cover 51 is fixed to the partition plate 20.
[0041] As shown in FIG. 13, the hinge cover 51 covers the notch portion 20a of the partition plate 20 from the rear, that is, from the steering column 10 side. Also, as shown in FIG. 5, the hinge cover 51 covers the rotation shaft portion 41 of the bonnet rotation portion 40.
[0042] In this way, in the present embodiment, the hinge cover 51 simultaneously covers the notch portion 20a and the rotation shaft portion 41 from the steering column 10 side. Thereby, the hot air from the engine 6 (see FIG. 1) that tries to flow to the steering column 10 side through the notch portion 20a and via the rotation shaft portion 41 can be blocked by the hinge cover 51.
[0043] Also, as shown in FIGS. 3 to 5, the tractor 1 of the present embodiment includes a lid member 52. The lid member 52 covers the rotation shaft portion 41 of the bonnet rotation portion 40 and the hinge cover 51 from above. The lid member 52 is composed of, for example, a urethane cover and extends in the left-right direction.
[0044] In this way, by covering the hinge cover 51 from above with the lid member 52, the space surrounded by the partition plate 20 and the hinge cover 51 (the space where the rotation shaft portion 41 is located) can be substantially sealed. Therefore, the hot air from the engine 6 passing through the notch 20a of the partition plate 20 can be confined and blocked by the hinge cover 51 and the lid member 52.
[0045] FIG. 14 is a perspective view showing the configuration of the lower right part of the fuel tank 30 in the tractor 1. The tractor 1 of the present embodiment includes a water separator 61 and a feed pump 62. The water separator 61 and the feed pump 62 are located in the fuel supply path X between the fuel tank 30 and the engine 6 (see FIG. 1). The water separator 61 removes (separates) the moisture contained in the fuel supplied from the fuel tank 30. The feed pump 62 supplies the fuel in the fuel tank 30 to the engine 6 via the water separator 61.
[0046] Further, the tractor 1 further includes a bracket 63. The bracket 63 is connected to the lower part (particularly the lower right part) of the partition plate 20 by bolts or the like. The bracket 63 supports the water separator 61 and the feed pump 62.
[0047] FIG. 15 is a perspective view showing the bracket 63, the water separator 61, and the feed pump 62 disassembled. The bracket 63 has a support stay 63a, a pump fixing portion 63b, and a right partition portion 63c. The support stay 63a is a support member that supports the above-mentioned water separator 61 and extends in the front-rear direction. The pump fixing portion 63b is a flat plate fixed to the front end portion of the support stay 63a. The feed pump 62 is fixed to this pump fixing portion 63b by bolts or the like. The right partition portion 63c is located in the lower right of the partition plate 20 and, like the partition plate 20, partitions the inside of the bonnet 5 and the inside of the dashboard 14. The right partition portion 63c is formed in a substantially triangular shape when viewed from the front in order to fill the vertical gap formed between the transmission case 13 and the partition plate 20. The right partition portion 63c is fixed to the support stay 63a by welding or bolts.
[0048] By connecting the bracket 63 to the lower part of the partition plate 20, the bracket 63 can not only support the water separator 61 and the feed pump 62, but also have the function of blocking the hot air of the engine 6. That is, the bracket 63 that supports the water separator 61 and the feed pump 62 can be effectively utilized as a member for blocking hot air.
[0049] In particular, since the right partition wall portion 63c of the bracket 63 is formed in a shape that fills the gap between the transmission case 13 and the partition plate 20, the right partition wall portion 63c can be treated as a member obtained by extending the right lower end portion of the partition plate 20 downward. And the right partition wall portion 63c can be provided with the same hot air blocking function as the partition plate 20.
[0050] Also, in the present embodiment, as shown in FIG. 14, a left partition wall portion 64 is located at the lower left of the partition plate 20. The left partition wall portion 64 is fixed to the lower left end portion of the partition plate 20 by bolts. The left partition wall portion 64 is formed in a shape that is substantially symmetric with the right partition wall portion 63c in the left-right direction, and fills the gap between the transmission case 13 and the partition plate 20 in the same manner as the right partition wall portion 63c. In this case, the left partition wall portion 64 can be treated as a member obtained by extending the left lower end portion of the partition plate 20 downward. Therefore, the left partition wall portion 63c can be provided with the same hot air blocking function as the partition plate 20.
[0051] FIG. 16 is a perspective view of the fuel tank 30 as viewed from the rear. FIG. 17 is a perspective view of the fuel tank 30 as viewed from the front. The fuel tank 30 has a front surface portion 31 (see FIG. 17), a side surface portion 32, an upper surface portion 33, a bottom surface portion 34, and a rear surface portion 35 (see FIG. 16).
[0052] The front surface portion 31 is located facing the partition plate 20 (see FIG. 14 etc.) within the dashboard 14. The front surface portion 31 has a concave portion 31a. The concave portion 31a is composed of a groove extending in the vertical direction. The concave portion 31a is provided at two locations on the front surface portion 31. The two concave portions 31a are provided side by side with a space therebetween in the left-right direction.
[0053] The side surfaces 32 are respectively located on the left and right sides of the front surface 31. The left and right side surfaces 32 are respectively connected to the left and right edge portions of the front surface 31. Thereby, the left and right side surfaces 32 are connected to the front surface 31. The upper surface 33 is connected to the upper portion of the front surface 31 and the upper portions of the left and right side surfaces 32. Thereby, the upper surface 33 is connected to the front surface 31 and the left and right side surfaces 32.
[0054] The bottom surface 34 is connected to the lower portion of the front surface 31 and the lower portions of the left and right side surfaces 32. Thereby, the bottom surface 34 is connected to the front surface 31 and the side surfaces 32. As shown in FIG. 17, the bottom surface 34 has a shape in which the central portion of the bottom surface is recessed toward the upper surface 33 side, but the bottom surface 34 may be flat. The rear surface 35 is connected to the upper surface 33, the left and right side surfaces 32, and the bottom surface 34.
[0055] FIG. 18 is a perspective view when the partition plate 20 is viewed from the rear. A reinforcing frame 21 is fixed to the rear surface of the partition plate 20, that is, the surface of the partition plate 20 on the steering column 10 side. That is, the tractor 1 includes a reinforcing frame 21 fixed to the partition plate 20. The reinforcing frame 21 extends in the vertical direction and is fixed to the partition plate 20 at two positions in the left-right direction. The reinforcing frame 21 is formed, for example, by bending a flat plate, but may be formed in a cylindrical shape (square tube) with a square cross section. By fixing the reinforcing frame 21 to the partition plate 20, the strength of the partition plate 20 can be increased. The above-described hinge cover 51 is attached to the upper portion of the partition plate 20. Further, the partition plate 20 is fixed to the fixing plate 81 by welding or the like.
[0056] The reinforcing frame 21 has a passage portion 21a. The passage portion 21a is a portion through which the oil leakage hose 90 (see FIGS. 3, 4, and 21) passes. Such a passage portion 21a can be configured by a concave portion (a groove extending in the vertical direction) formed by bending a flat plate that is the original plate of the reinforcing frame 21. When the reinforcing frame 21 is configured by a square tube with a square cross section, the inside (hollow portion) of the tube can be used as the passage portion 21a.
[0057] A plurality of contact portions 22 are attached to the reinforcing frame 21. Specifically, a part (convex portion) of each contact portion 22 is fitted into a hole formed in the reinforcing frame 21 from the fuel tank 30 side, whereby each contact portion 22 is attached to the reinforcing frame 21.
[0058] Each contact portion 22 is composed of an elastic member (e.g., rubber). In the present embodiment, two contact portions 22 are arranged side by side in the vertical direction on one reinforcing frame 21, but the number of contact portions 22 is not particularly limited.
[0059] FIG. 19 is a perspective view of the partition plate 20 with the fuel tank 30 supported by the tank support portion 30a as viewed from the front. FIG. 20 is a perspective view showing the state of FIG. 19 with the partition plate 20 removed. Each reinforcing frame 21 is located in a recess 31a on the front surface portion 31 of the fuel tank 30. At this time, the contact portion 22 attached to the reinforcing frame 21 contacts the front surface portion 31 (particularly, the portion facing each other within the recess 31a).
[0060] Since the reinforcing frame 21 is located in the recess 31a of the front surface portion 31, the fuel tank 30 is appropriately positioned with respect to the partition plate 20.
[0061] As shown in FIG. 20, the bottom surface portion 34 of the fuel tank 30 is supported by the fixing plate 81 via the support member 82. Also, a spacer 83 is located between the fixing plate 81 and the transmission case 13. Therefore, the bottom surface portion 34 of the fuel tank 30 is supported by the transmission case 13 via the support member 82, the fixing plate 81, and the spacer 83.
[0062] In the present embodiment, fuel leaked during refueling of the fuel tank 30 (hereinafter also referred to as fuel leakage) is configured to be discharged to the outside of the tractor 1. Hereinafter, the discharge structure of the fuel leakage will be described.
[0063] As shown in FIG. 19, the fuel tank 30 has a fuel receiving portion 90. The fuel receiving portion 90 is provided on the upper surface portion 33 of the fuel tank 30. FIG. 21 is a side view of the fuel tank 30. In FIG. 21, for the sake of convenience, the illustration of the support structure (tank support portion 30a in FIG. 19) of the fuel tank 30 is omitted.
[0064] The fuel receiving portion 90 has a fuel filling port 92 and a fuel tray portion 93. Fuel is introduced into the fuel tank 30 through the fuel filling port 92. The fuel tray portion 93 is located around the fuel filling port 92. The fuel tray portion 93 receives fuel (fuel leakage) that spills out from the fuel filling port 92 to the outside during fueling.
[0065] As shown in FIG. 21, a leakage hose 91 is connected to the bottom of the fuel tray portion 93. The leakage hose 91 passes through the passing portion 21a of the reinforcing frame 21 and extends to the lower side of the fuel tank 30.
[0066] In this way, since the leakage hose 91 connected to the fuel tray portion 93 passes through the passing portion 21a of the reinforcing frame 21, the fuel leakage that spills around the fuel filling port 92 and is received by the fuel tray portion 93 is discharged downward through the leakage hose 91. Therefore, inconveniences (for example, a situation where surrounding electrical components come into contact with fuel and malfunction) caused by fuel leakage during fueling can be reduced. In addition, the inside (passing portion 21a) of the reinforcing frame 21 can be effectively utilized as a passage for the leakage hose 91, and furthermore, the leakage hose 91 can be protected by the reinforcing frame 21.
[0067] As described above, the embodiments of the present invention have been described, but the scope of the present invention is not limited thereto, and it can be implemented with expansion or modification without departing from the gist of the invention.
Industrial Applicability
[0068] The present invention can be used in work vehicles such as tractors, for example.
Explanation of Reference Numerals
[0069] 1 Tractor (Work vehicle) 5 Bonnet 6 Engine 10 Steering column 20 Partition plate (Partition member) 20a Notch 21 Reinforcing frame 21a Passage part 30 Fuel tank 31 Front part 31a Concave part 33 Upper part 40 Bonnet rotation part 41 Rotation shaft part 42 Support plate (Support member) 43 Hinge 51 Hinge cover 51a Passage opening 52 Cover member 61 Water separator 62 Feed pump 63 Bracket 81 Fixed plate 90 Fuel receiving part 91 Leakage hose 92 Fuel filling port 93 Fuel receiving tray part E harness F Rotation fulcrum H Hose X Fuel supply path
Claims
1. The engine, The steering column and a partition member located between the engine and the steering column; A bonnet covering the engine; a bonnet rotation section that supports the bonnet so that the bonnet can rotate up and down, The partition member has a notch at an upper end, A work vehicle, wherein the bonnet pivot portion is positioned through the cutout portion.
2. The bonnet rotation portion is A rotation shaft portion that serves as a rotation shaft of the bonnet; A support member for supporting the bonnet; a hinge having one end fixed to the support member and the other end fixed to the pivot shaft portion, The work vehicle according to claim 1 , wherein the pivot shaft portion is located between the partition member and the steering column.
3. The work vehicle of claim 2 , wherein the hinge is positioned through the cutout.
4. The hinge cover is fixed to the partition member. The work vehicle according to claim 3 , wherein the hinge cover covers the cutout portion and the rotation shaft portion from a side of the steering column.
5. The work vehicle according to claim 4 , further comprising a cover member that covers the hinge cover from above.
6. Further comprising a hose or harness positioned through the cutout of the partition member; The hinge cover has a passage opening, The work vehicle according to claim 5 , wherein the hose or the harness is positioned through the passage opening of the hinge cover.
7. a fuel tank located between the partition member and the steering column; a water separator and a feed pump located in a fuel supply path between the fuel tank and the engine; A bracket connected to a lower portion of the partition member, The work vehicle according to claim 1 , wherein the bracket supports the water separator and the feed pump.
Citation Information
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