JP7398258B2 - work vehicle - Google Patents

Description

The present invention relates to a work vehicle such as a tractor.

A work vehicle is known that includes a steering column that supports a steering wheel, a steering bracket that supports the steering column, a meter panel that is placed in front of the steering wheel, and a resin panel cover that covers the meter panel. (For example, see Patent Document 1).

JP2011-246041A

In recent years, this type of work vehicle is sometimes equipped with a communication device (for example, a GPS positioning unit) that communicates with the outside of the aircraft, but depending on the mounting position and mounting structure of the communication device, it may be affected by the metal parts of the aircraft. Not only will communication efficiency decrease, but there is also a risk that the communication device will be damaged due to the vibrations of the aircraft.

The present invention was created with the aim of solving these problems in view of the above-mentioned circumstances, and the invention of claim 1 provides a steering column that supports a steering wheel, and a steering column that supports the steering column. A steering bracket, a meter panel disposed in front of the steering handle, a resin panel cover surrounding the meter panel, a fuel tank disposed in front of the steering column, and supporting the fuel tank. A work vehicle comprising: a tank support frame; and a communication device for communicating with the outside of the vehicle; a connection frame extending rearward from the top of the tank support frame and connected to the steering bracket; The invention further includes a reinforcing member disposed below the panel cover between the upper end and the rear end of the connection frame, the panel cover being disposed so as to cover the periphery of the meter panel. and a front half provided at a higher level than the front bonnet with a space between it and the lower reinforcing member, and the communication device is disposed within the space in the front half of the panel cover. This work vehicle is characterized in that it is attached to a reinforcing member in a state where the work vehicle is attached to the reinforcement member .
In the invention of claim 2, the panel cover has a mountain-like shape when viewed from the side, with the rear half where the meter panel is provided being inclined in a high front and low back shape, and the front half where the communication device is arranged is tilted in a low front and high back shape. 2. The work vehicle according to claim 1, characterized in that :
The invention according to claim 3 is the work vehicle according to claim 1 or 2, further comprising: an engine disposed in front of the fuel tank; and a heat shield plate partitioning between the engine and the fuel tank. This work vehicle is characterized by being equipped with:

According to the first aspect of the invention, the communication device can be placed in a location within the panel cover that is not easily affected by communication, thereby avoiding a decrease in communication efficiency. Since the communication device can be supported using a strong connection frame that connects the tank support frame and the steering bracket, the possibility that the communication device will be damaged due to vibrations of the aircraft body can be reduced.
Furthermore, since a reinforcing member is provided between the upper end of the tank support frame and the rear end of the connection frame, the support strength of the fuel tank and steering bracket is increased. Furthermore, since the communication device is attached to the reinforcing member, the support strength of the communication device can be increased and the influence of body vibration can be further reduced.
According to the invention of claim 3, since the fuel tank further includes an engine disposed in front of the fuel tank and a heat shield plate partitioning between the engine and the fuel tank, the fuel tank and the communication device can be protected from the heat of the engine. .

FIG. 1 is a perspective view showing the front body of a tractor according to an embodiment of the present invention. FIG. 3 is a sectional view showing the front part of the tractor body. FIG. 2 is a perspective view of the front body of the tractor, with covers such as the bonnet removed, as seen from the front. FIG. 2 is a perspective view of the front body of the tractor, seen from the rear, with covers such as the bonnet removed. It is an exploded perspective view of a fuel tank, a tank support frame, and a heat shield plate seen from above. It is an exploded perspective view of a fuel tank, a tank support frame, and a heat shield plate seen from below. It is a perspective view of a tank support frame. (a) is a plan view of the tank support frame, (b) is a rear view of the tank support frame, and (c) is a side view of the tank support frame.

Embodiments of the present invention will be described below based on the drawings. As shown in FIGS. 1 to 4, the front portion of a tractor 1, which is a work vehicle, includes an engine room 3 covered with a bonnet 2 that can be opened and closed. Inside the engine room 3, there is an engine 4, a radiator 5 disposed in front of the engine 4, and a cooling fan disposed between the engine 4 and the radiator 5 that takes in engine cooling air from the front of the aircraft via the radiator 5. 6, a fuel tank 7 disposed adjacent to the rear of the engine 4, a heat shield plate 8 that partitions between the engine 4 and the fuel tank 7, and a tank support frame that supports the fuel tank 7 and the heat shield plate 8. 9, an air cleaner 10 arranged above and on one side of the engine 4 along the front-rear direction and purifying the air supplied to the engine 4; and an air cleaner 10 arranged above the engine 4 and on the other side along the front-rear direction. , and a muffler 11 which is an exhaust device for discharging exhaust gas from the engine 4.

As shown in FIGS. 2 to 6, the fuel tank 7 includes a tank body portion 7a adjacent to the rear of the engine 4, and an overhang portion that extends above the engine 4 from the top of the tank body portion 7a to expand the tank capacity. 7b, a fuel filler port 7c provided at the upper part of the overhang portion 7b, and a cap 7d that covers the fuel filler port 7c in an openable and closable manner. According to such a fuel tank 7, although it is disposed adjacent to the engine 4, the capacity of the fuel tank 7 can be significantly expanded by the overhang portion 7b. Further, the overhang portion 7b is arranged between the air cleaner 10 and the muffler 11 in plan view. According to such an arrangement, the capacity of the fuel tank 7 can be expanded by utilizing the space between the air cleaner 10 and the muffler 11.

A tray 12 is provided around the fuel filler port 7c to catch fuel that overflows during refueling. Further, a discharge hose 13 is connected to the tray 12 for discharging the fuel accumulated in the tray 12 to the lower part of the aircraft body.

As shown in FIGS. 2 to 6, the heat shield plate 8 includes a heat shield body part 8a that partitions between the tank body part 7a of the fuel tank 7 and the engine 4, and a side of the overhang part 7b of the fuel tank 7. It includes a cover part 8b that covers the upper and lower sides. Specifically, the cover portion 8b includes a front surface 8c that covers the front side of the overhang portion 7b, a left side surface 8d that covers the left side of the overhang portion 7b, and a right side surface 8e that covers the right side of the overhang portion 7b. , and a bottom surface 8f that covers the lower part of the overhang portion 7b. The bottom surface 8f of the cover portion 8b has an inclination that decreases from the engine 4 toward the fuel tank 7. According to such a heat shield plate 8, even if fuel overflows from the fuel filler port 7c or the tray 12 during refueling, not only can the overflowing fuel be caught by the cover portion 8b, but also the received fuel can be absorbed by the bottom surface 8f. Since the fuel can be guided toward the fuel tank 7 side with an inclination, the fuel can be prevented from flowing toward the engine 4 side. Note that the fuel guided to the fuel tank 7 side is transmitted to the heat shield main body portion 8a and is discharged to the lower part of the aircraft body.

As shown in FIGS. 2 to 8, the tank support frame 9 is provided with a main frame 14 that is vertically installed in the engine room 3 and has a letter-shaped shape when viewed from the front, and is provided at the lower end of the main frame 14. A tank mounting table 15 is mounted via a rubber plate (not shown), and a connection frame 16 that extends rearward from the upper part of the main frame 14 and has an inverted diagonal shape in plan view is connected to a steering bracket 31 to be described later. and a reinforcing member 17 installed between the upper end of the main frame 14 and the rear end of the connecting frame 16. The tank support frame 9 also includes a tank fixing part 18 to which the fuel tank 7 is fixed with bolts, a heat shield fixing part 19 to which the heat shield plate 8 is fixed with bolts, a steering fixing part 20 which is bolted to the steering bracket 31, etc. A fixing part is provided.

The lower part of the tank support frame 9 is open. In other words, a space is secured below the tank mounting table 15. According to such a tank support frame 9, exhaust air that has cooled the engine 4 can be guided below the tank support frame 9, and discharge of the exhaust air can be promoted. Further, since a space is provided between the engine 4 and the heat shield plate 8 and this space is communicated with the space below the tank mounting table 15, the flow of air from the cooling fan 6 is prevented from being stagnated by the heat shield plate 8. can be avoided and exhaust air can be discharged more efficiently.

Next, the arrangement of the communication device 32 provided in the tractor 1 will be explained with reference to FIGS. 2 to 4. Although the tractor 1 of this embodiment includes a GPS receiver as the communication device 32, it does not need to be a GPS receiver as long as it is a communication device that performs wireless communication with the outside of the vehicle.

As shown in FIG. 2, the tractor 1 includes a steering column 34 disposed behind the fuel tank 7 and supporting a steering handle 33, a steering bracket 31 supporting the steering column 34, and a steering column 34 disposed in front of the steering handle 33. The meter panel 35 includes a meter panel 35, and a panel cover 36 made of resin that covers the periphery of the meter panel 35.

The communication device 32 is arranged above the aforementioned connection frame 16 and inside the panel cover 36. Specifically, the communication device 32 is attached to the upper surface side of the reinforcing member 17 described above. According to such an arrangement, the communication device 32 can be placed in a location within the panel cover 36 that is not easily affected by communication, thereby avoiding a decrease in communication efficiency.
In other words, as shown in FIG. 2, the panel cover 36 that covers the communication device 32 has a rear half 35b provided to cover the meter panel 35, and a lower reinforcing member 17 that is higher than the front bonnet 2. and a front half 35a provided with a space S between them, and the communication device 32 is attached to the reinforcing member 17 so as to be disposed within the space S of the front half 36a of the panel cover 36. There is. In this case, the panel cover 36 has a rear half 36b where the meter panel 35 is provided is sloped in a high front and low back shape, and a rear half 35b where the communication device 32 is arranged is a mountain when viewed from the side that is sloped in a low front and high back shape. It has a shape.
By configuring the resin panel cover 36 in this way, unlike the metal bonnet 2, etc., it does not affect the communication of the communication device 32, and furthermore, the communication device 32 is placed at a high position on the aircraft. As a result, communication sensitivity can be improved. Further, since the communication device 32 is supported using the strong connection frame 16 that connects the main frame 14 and the steering bracket 31, the possibility that the communication device 32 will be damaged due to the vibration of the aircraft body can be reduced. Furthermore, since the communication device 32 is attached to the reinforcing member 17 installed between the upper end of the main frame 14 and the rear end of the connecting frame 16, the support strength of the communication device 32 is increased and the influence of body vibration is reduced. It can be further reduced.

According to the present embodiment configured as described above, the steering column 34 that supports the steering handle 33, the steering bracket 31 that supports the steering column 34, the meter panel 35 disposed in front of the steering handle 33, and the meter A resin panel cover 36 that covers the periphery of the panel 35, a fuel tank 7 located in front of the steering column 34, a tank support frame 9 that supports the fuel tank 7, and a communication device 32 that communicates with the outside of the aircraft. The tractor 1 further includes a connecting frame 16 that extends rearward from the upper part of the tank support frame 9 (main frame 14) and is connected to the steering bracket 31, and is arranged above the connecting frame 16 and within the panel cover 36. Since the communication device 32 is placed in the panel cover 36, the communication device 32 can be placed in a location that is not easily affected by communication within the panel cover 36, and a decrease in communication efficiency can be avoided. In addition, since the communication device 32 can be supported using the strong connection frame 16 that connects the tank support frame 9 (main frame 14) and the steering bracket 31, there is a possibility that the communication device 32 will be damaged due to the influence of vibration of the aircraft body. can be reduced.

Furthermore, since a reinforcing member 17 is further provided between the upper end of the tank support frame 9 (main frame 14) and the rear end of the connection frame 16, the support strength of the fuel tank 7 and the steering bracket 31 is increased. . Further, since the communication device 32 is attached to the reinforcing member 17, the support strength of the communication device 32 can be increased, and the influence of body vibration can be further reduced.

Furthermore, since it further includes an engine 4 disposed in front of the fuel tank 7 and a heat shield plate 8 that partitions between the engine 4 and the fuel tank 7, the fuel tank 7 and the communication device 32 can be protected from the heat of the engine 4. .

1 Tractor 3 Engine room 4 Engine 7 Fuel tank 8 Heat shield 9 Tank support frame 14 Main frame 16 Connection frame 17 Reinforcement member 31 Steering bracket 32 Communication device 33 Steering handle 34 Steering column 35 Meter panel 36 Panel cover

Claims (3)

a steering column that supports the steering wheel;
a steering bracket that supports the steering column;
a meter panel located in front of the steering handle;
a resin panel cover that covers the periphery of the meter panel;
a fuel tank located in front of the steering column;
a tank support frame that supports the fuel tank;
A work vehicle comprising a communication device that communicates with the outside of the aircraft,
a connection frame extending rearward from the top of the tank support frame and connected to the steering bracket ;
further comprising a reinforcing member installed under the panel cover between the upper end of the tank support frame and the rear end of the connection frame,
The panel cover includes a rear half provided to cover the periphery of the meter panel, and a front half provided at a higher level than the front bonnet with a space between it and the lower reinforcing member,
A work vehicle characterized in that the communication device is attached to the reinforcing member while being disposed within a space in the front half of the panel cover . The panel cover is characterized in that the rear half where the meter panel is installed is sloped with a high front and low back, and the front half where the communication device is located is sloped with a low front and high back, forming a mountain shape when viewed from the side. The work vehicle according to claim 1. The work vehicle according to claim 1 or 2, further comprising an engine disposed in front of the fuel tank, and a heat shield plate partitioning between the engine and the fuel tank.

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