JP2004175124A - Mobile agricultural machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile agricultural machine which is enhanced in design and oil supplying performance while preventing a tachometer arranged on an instrument panel from interfering with a fuel tank. <P>SOLUTION: The tachometer 66 arranged on the instrument panel 44 of a maneuvering part 24 for indicating the rotating speed of an engine 20 has many mechanical parts, and when this is mounted on the panel 44, the protruding amount to behind the panel 44 becomes large. Accordingly there is a risk that the tachometer 66 interferes with the fuel tank 46 in a tractor 10 of such a configuration that the fuel tank 46 is located between the engine 20 and the instrument panel 44, but it becomes possible for the fuel supply hole 46a of the fuel tank 46 to be set in the tank center by introducing such an arrangement that the tachometer 66 is offset to the left about the center line approximately in the left-right direction of the instrument panel 44, thereby, the design and oil supplying performance of the machine can be improved. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile agricultural machine such as a tractor, and more particularly to a mobile agricultural machine having a fuel tank disposed in a portion between an engine mounted on the front of the fuselage and an instrument panel.
[0002]
[Prior art]
For example, a tractor as a mobile farming machine has an instrument panel disposed in front of a control section. Conventionally, as disclosed in Patent Document 1, in an instrument panel arrangement method, for example, an engine A tachometer is arranged, a monitor display section is divided and arranged on the left and right sides, a water temperature gauge and a fuel gauge are arranged on the left monitor display section, and a charge lamp, an oil lamp, and the like are arranged on the right monitor display section. A glow lamp, an automatic inclination lamp, an automatic depth adjustment lamp and the like were arranged.
[0003]
In this case, if there is a sufficient free space in the front part (back side) of the instrument panel, wiring on the back of the panel can be easily performed without any problem, and cables can be easily taken out from the back side of the tachometer. You can also.
[0004]
[Patent Document 1]
Japanese Patent No. 3048869 (page 3, FIG. 13)
[0005]
[Problems to be solved by the invention]
However, as described above, when the tachometer of the engine is disposed substantially at the center of the left and right of the instrument panel, the monitor display section is divided and disposed at the left and right even though the engine speed display is clearly visible to the pilot. Therefore, there is a problem that the display unit is narrow and the display is dispersed, so that it is difficult to understand. On the other hand, for example, in a tractor having a structure in which an engine is mounted in front of the fuselage and a fuel tank is arranged in a portion between the engine and the instrument panel, a wiring on the back side of the instrument panel and a cable outlet for a tachometer, a fuel supply port, It is difficult to reduce the size of the apparatus because the fuel tank and the fuel gauge mounting portion are densely packed in a narrow space, and there is a possibility that the fuel tank and the tachometer mounted on the instrument panel may interfere with each other.
[0006]
On the other hand, there is a problem in that it is not preferable in terms of design if the fuel supply port of the fuel tank is shifted to the left or right to avoid interference, and if the fuel tank is made smaller, it is not easy to secure the tank capacity. Was.
[0007]
The present invention has been made to solve such a problem, and an object of the present invention is to improve design and lubrication while preventing interference between a tachometer arranged on an instrument panel and a fuel tank. Another object of the present invention is to provide a mobile agricultural machine capable of ensuring a sufficient tank capacity.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 includes an engine (20) mounted in front of the fuselage (16), a control unit (24) provided behind the engine (20), and the control unit (24). ) Comprises a meter panel (44) at the front and a fuel tank (46) disposed between the engine (20) and the meter panel (44).
A tachometer (66) for displaying the rotation speed of the engine (20) is offset to one of the left and right sides with respect to a substantially center line in the left and right direction of the instrument panel (44).
[0009]
According to a second aspect of the present invention, in the mobile agricultural machine according to the first aspect, various types of the working unit (38) supported on the machine body (16) so as to be able to ascend and descend at substantially right and left center positions of the instrument panel (44). A monitor display section (68) for displaying an operation state or a non-operation state of the control function is provided.
[0010]
According to a third aspect of the present invention, in the mobile agricultural machine according to the second aspect, the status display on the monitor display section (68) is arranged in association with each of various control functions.
[0011]
[Action]
The tachometer (66) for displaying the rotation speed of the engine (20) has many mechanical parts, and when this is attached to the instrument panel (44), the rear surface of the instrument panel (44) is used. The amount of protrusion to the side increases. Therefore, in the case of the mobile agricultural machine (10) in which the fuel tank (46) is disposed between the engine (20) and the instrument panel (44), the tachometer (66) and the fuel tank (46) are connected. Although there is a possibility of interference, according to the present invention, the tachometer (66) is offset to one of the left and right sides with respect to the substantially center line in the left and right direction of the instrument panel (44). ) Can be set at the center of the tank, thereby improving design and refueling.
[0012]
Further, when the tachometer (66) is offsetly arranged on the left and right sides of the instrument panel (44) as described above, when the instrument panel (44) is to be detached or serviced, When attaching and detaching the drawer cable (52), it becomes easier to access the empty space on the left and right sides of the tachometer (66), thereby improving maintainability.
[0013]
In addition, the code | symbol in a parenthesis mentioned above is for contrast of drawing, and does not limit this invention at all.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is an external perspective view of a tractor as a mobile agricultural machine to which the present invention is applied. The tractor 10 has a traveling body 16 supported by a front wheel 12 and a rear wheel 14, and has a front hood 18. An engine 20 is mounted in the inside, and a transmission case 22 is attached below the engine 20 integrally with the engine. The steering portion 24 behind the hood 18 has a steering wheel (hereinafter referred to as “steering handle”) 26 for steering and a substantially central portion between left and right fender frames 27, 27 covering the rear wheel 14. A seat 28 and a clutch pedal 30 extending upward from the step surface are provided. Further, a main transmission lever 32 and an auxiliary transmission lever 34 are provided on the left fender frame 27, a safety frame 36 is attached to the rear of the seat 28, and a working machine such as a rotary device 38 is provided at the rear of the aircraft. It is supported to be able to move up and down freely.
[0016]
The power of the engine 20 is transmitted to the transmission case 22, and a sub-transmission mechanism (not shown) for traveling in the transmission case 22 is operated by the sub-transmission lever 34 to change the speed. Power transmitted to the left and right rear wheels 14 via gears in the vehicle (not shown) and branched from the auxiliary transmission mechanism is transmitted through a propeller shaft (not shown), gears in the front axle case 40, and the like. The power is transmitted to the left and right front wheels 12 via the front wheel.
[0017]
FIG. 2 is a front side view of the tractor 10, and an instrument panel 44 is provided in front of the steering section 24 and in front of the steering mast 42. A fuel tank 46 having a fuel supply port 46a is disposed between the bonnet 18 and the control section 24. The refueling port 46a projects obliquely upward from substantially the front of the center of the instrument panel 44 and substantially parallel to the panel surface of the instrument panel 44 in a side view. The filler port 46a has a relatively large diameter, is filled with a filter 48, and the top of the filler port 46a is covered with a cap 50.
[0018]
A cable 52 pulled out from the back side of the instrument panel 44 extends from the left side of the fuel supply port 46a of the fuel tank 46 toward the engine room 20a. The instrument panel 44 is provided with a QT switch (for quick turn) 54 that allows the front wheel 12 to rotate at approximately twice the speed during turning and to make a small turn. In addition, a radiator 56 is provided in front of the engine 20, and the cooling air is sucked by the fan 58 into the radiator 56 to cool the internal cooling water.
[0019]
As shown in FIG. 3, the instrument panel 44 is provided with a display device 60 having a flat surface at an upper portion thereof, and a combination having a headlight switch, a horn switch, and a direction indicator switch at a lower left portion. A switch 62 is provided, and a starter switch 64 is provided at the lower right. The display device 60 includes a tachometer 66 for displaying the rotation speed of the engine 20 and a monitor display for displaying the operation / non-operation of various control functions related to a working unit (a rotary device or the like) supported on the body so as to be vertically movable. A water temperature gauge 70 for displaying the water temperature of the radiator 56 and a fuel gauge 72 for displaying the remaining fuel amount of the fuel tank 46 are provided.
[0020]
The tachometer 66 is offset to the left or right with respect to the substantially center line in the left-right direction of the instrument panel 44, and is offset to the left in the present embodiment. The water temperature gauge 70 and the fuel gauge 72 are arranged at a central position, and are offset to the right with respect to a substantially center line of the instrument panel 44 in the left-right direction.
[0021]
In this manner, the tachometer 66 is arranged to be offset to the left of the instrument panel 44 because the tachometer 66 has many mechanical parts, and when attached to the instrument panel 44, the amount of protrusion to the back side is reduced. The reason is that the fuel tank 46 may interfere with the fuel tank 46 because of its large size, and the diameter of the fuel supply port 46a of the fuel tank 46 is relatively large. The tachometer 66 is shifted to the left. As a result, the fuel supply port 46a of the fuel tank 46 can be set at the center of the tank, so that not only the design and the fuel supply can be improved, but also it is not necessary to reduce the shape of the tank. Tank capacity is secured.
[0022]
Further, when detaching or maintaining the instrument panel 44, attaching or detaching the extraction cable 52 drawn from the tachometer 66, or detaching a connection coupler (not shown), the left and right vacancies of the meter are removed. Access to the space is facilitated, thereby improving maintainability.
[0023]
Further, the monitor display section 68 is provided substantially at the center on the left and right of the instrument panel 44. As described above, the monitor display section 68 is provided substantially at the center on the left and right of the instrument panel 44, so that the display area of the monitor display section 68 is sufficiently ensured, and the display is easy for the operator to understand. Further, in the present embodiment, since the monitor display section 68 is centrally arranged at one place in the center, it is possible to centralize wiring routing of the wiring pattern and centralize the coupler circuit, thereby reducing the size of the panel assembly. Can be
[0024]
FIG. 4 is a diagram showing the details of the monitor display section 68. The display section 68 displays the operating and non-operating states of various control functions related to the working section supported on the body so as to be able to move up and down.
[0025]
In the figure, in the first row from the top, direction indicating lamps 74L and 74R for indicating the traveling direction of the aircraft, a QT plus lamp 76 for controlling to automatically raise the rotary device when the aircraft is turning, and when the aircraft is moving backward, A control backup lamp 78 for automatically raising the working unit is provided.
[0026]
In the second row from the top, a control depth automatic ramp 80 for keeping the amount of tillage set by a depth setting volume (not shown) constant and a tilt setting volume (not shown) are set. And a control automatic tilt ramp 82 for keeping the tilt angle constant is arranged. In the third row from the top, the engine speed and the throttle opening are compared, and when the engine speed falls below the set value. A control S-mode lamp 84 for raising the working unit, an AB turn lamp (auto-brake turn) 86 for control in which a brake is automatically applied to the rear wheel inside the turning when the steering is steered by a predetermined angle or more. A Q-turn lamp (quick turn) 88 which turns on and off based on the operation of the QT switch 54 (see FIG. 2) is provided.
[0027]
Further, a charge lamp 90 indicating the amount of charge, an engine oil lamp 92 indicating the amount of engine oil, a glow lamp 94, and a brake connection lamp 96 are arranged in the bottom row.
[0028]
As described above, according to the present embodiment, the status display on the monitor display unit 68 is displayed for each device and each function by the engine system display unit, the automatic control system display unit, the work implement system display unit, or the traveling system display. Since the components are arranged adjacently in association with each other, the status display for each device and each function can be checked at a glance, and the monitor display is easy for the operator to use.
[0029]
In the present embodiment, in order to improve the visibility, the direction indicating lamps 74L and 74R, the automatic depth lamp 80, the automatic tilt lamp 82, and the S mode lamp 84 are displayed in green, the QT plus lamp 76, and the backup lamp. The lamp 78, the AB turn lamp 86, the Q turn lamp 88, and the glow lamp 94 are displayed in amber, and the charge lamp 90, the engine oil lamp 92, and the brake connection lamp 96 are displayed in red.
[0030]
FIG. 5 is a cross-sectional view of the instrument panel 44 (a cross-sectional view along line AA in FIG. 3).
[0031]
In the figure, a lamp house 98 having a plurality of optical paths 98a is provided at a lower portion of a monitor display section 68 at a central portion, and a warning lens 100 is fixed to an upper end surface thereof. A tachometer 66 is provided on the left side of the monitor display section 68, and a water temperature gauge 70 and a fuel gauge 72 are provided separately on the right side. Dials 102 and 104 are fixed to the upper end surfaces of the tachometer 66, the water temperature gauge 70 and the fuel gauge 72, respectively, and these dials 102 and 104 are located above the mounting surface of the warning lens 100. Therefore, adjacent portions overlap each other. Further, bent pieces 102a, 104a extending downward are formed at the ends of the dials 102, 104 located above.
[0032]
In this manner, the monitor display section 68, the tachometer 66, the water temperature gauge 70 and the like are divided and arranged, and the monitor display section 68 is lower than the dials 102 and 104 such as the left and right tachometer 66 and the water temperature meter 70. Since the warning lens 100 and the left and right dials 102, 104 are overlapped and the end portions of the dials 102, 104 are bent 102a, 104a, the sub-assembly work becomes easier and the manufacturing cost is reduced. At the same time, it becomes possible to supply components individually, so that components can be shared between multiple models. Furthermore, it becomes possible to use an appropriate material for each of the dials 102 and 104, and distortion is hardly generated and the lamp lasts longer.
[0033]
【The invention's effect】
As described above, according to the first aspect of the invention, in a mobile agricultural machine having a fuel tank disposed between an engine and an instrument panel, a tachometer for displaying an engine speed is provided in a horizontal direction of the instrument panel. The center line is offset to the left or right, so that interference with the fuel tank can be prevented and the fuel supply port of the fuel tank can be set at the center of the tank, improving design and refueling. Performance can be improved. Further, interference between the fuel tank and the tachometer can be avoided, so that the tank capacity can be ensured.
[0034]
Furthermore, when attaching and detaching the instrument panel and attaching / removing the tethering cable of the tachometer or attaching / detaching the connection coupler, it becomes easier to access the empty space on the left and right of the tachometer. Can be improved.
[0035]
According to the second aspect of the present invention, the monitor display section for displaying the operation state or the non-operation state of various control functions is provided substantially at the center of the left and right of the instrument panel, so that the area of the display section can be secured. It is possible to provide a display that is easy for the operator to understand. In addition, since the monitor display section is centrally arranged at one position in the center, it is possible to centralize the wiring routing of the wiring pattern and the coupler circuit, thereby making it possible to reduce the size of the panel assembly.
[0036]
According to the invention according to claim 3, the status display on the monitor display unit is associated with the engine system display unit, the automatic control system display unit, the work equipment system display unit, and the traveling system display unit for each device and each function. Because of the arrangement, the status display for each device and each function can be checked at a glance, and a monitor display that is easy for the operator to use can be provided.
[Brief description of the drawings]
FIG. 1 is an external view of a tractor to which the present invention is applied.
FIG. 2 is a front side view of the tractor.
FIG. 3 is a front view of an instrument panel.
FIG. 4
It is an enlarged front view of a monitor display part.
FIG. 5 is a sectional view taken along line AA of FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Tractor 16 Traveling body 20 Engine 24 Control part 38 Rotary device 44 Instrument panel 46 Fuel tank 46a Refueling port 52 Lead cable 60 Display device 66 Tachometer 68 Monitor display

Claims (3)

A mobile agricultural machine equipped with an engine in front of the fuselage, including a control unit behind the engine, including an instrument panel in front of the control unit, and arranging a fuel tank in a portion between the engine and the instrument panel. ,
A tachometer that displays the rotation speed of the engine is arranged to be offset to one of the left and right sides with respect to a substantially center line in the left and right direction of the instrument panel,
A mobile agricultural machine characterized by the above-mentioned. A monitor display unit for displaying an operating state or a non-operating state of various control functions related to a working unit supported to be able to move up and down on the machine body is provided at substantially a center position on the left and right sides of the instrument panel.
The mobile agricultural machine according to claim 1, wherein: The status display on the monitor display unit is arranged in association with each control function,
The mobile agricultural machine according to claim 2, wherein:

Images