JPH1159225A - Monitoring device for agricultural machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an operator to surely grasp the display contents of various kinds of meters and a message given by an informing device while carefully looking at a windshield in front of the operator so as to conduct operation without an error by incorporating a projector for projecting information required for driving operation on a cabin front glass on an instrument panel. SOLUTION: A projecting unit 25 is incorporated in an instrument panel 22 extending all over an operation seat 21. A light source 27, a signal generating part 28, and a light diffraction part 29 are provided in the projecting unit 25, and a signal from the signal generating part 28 is projected on a windshield by the defraction action of the light diffraction part 29. For example, an engine rotating speed and the rotating speed of a PTO are displayed on the front of the windshield. A terminal controller comprising a microcomputer and the projecting unit 25 are connected to each other to project a part of the information obtained by the terminal controller on the windshield 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for an agricultural machine which displays information necessary for a driving operation on a front glass of a cabin.

[0002]

2. Description of the Related Art Conventionally, various kinds of monitoring devices have been incorporated into an instrument panel to control the engine speed,
There is known a device that displays a PTO rotation speed and the like. When performing agricultural work using an agricultural machine such as a tractor, the operator must perform the work while checking not only the front but also the instruments on the instrument panel from time to time.

[0003] For example, when a rotary tilling device is connected to the rear part of a tractor body to perform adjacent tilling work, an operator simultaneously looks at an adjacent portion between a cultivated land and a non-cultivated land, and simultaneously monitors the engine speed and the engine speed. It is necessary to check the PTO rotation speed,
Such a driving operation in which the eyes are constantly transferred to the vicinity of the boundary and the instrument is troublesome for a person unfamiliar with the work, and undesirably results in reduced attention.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and enables the operator to easily check the numerical values of the instrument without having to change his eyes during the operation. It is an object of the present invention to provide a monitor device in which workability is drastically improved without losing power. Therefore, the present invention takes the following technical measures. That is,
In the agricultural machine 1 with a cabin, a monitoring device for an agricultural machine is characterized in that a project device 25 for projecting information necessary for a driving operation on a cabin front glass 32 is incorporated in an instrument panel 22.

[0005]

Embodiments of the present invention will be described below with reference to embodiments shown in the drawings. Reference numeral 1 denotes a tractor provided with a front wheel 2 and a rear wheel 3 at the front and rear portions of the fuselage. The rotational power of an engine 4 is appropriately reduced by a transmission in a transmission case 5, and the reduced rotational power is transmitted to a front wheel 2 and a rear wheel 3. Is transmitted to

A hydraulic cylinder case 6 is fixed to a rear upper portion of the transmission case 5, and lift arms 7, 7 are rotatably mounted on both left and right sides thereof. Lift rods 9, 9 are interposed and connected between the lift arms 7, 7 and the lower links 8, 8, and a three-point link mechanism composed of a top link 10, left and right lower links 8, 8 is provided. A rotary tillage device 15, which is a working machine, is connected via a numeral 12 so as to be able to move up and down.

A cabin 20 is provided at the center of the fuselage.
It is provided so as to surround the periphery of the cockpit 21. In an instrument panel 22 in front of the cockpit 21, a project unit 25 as an imaging unit described later is incorporated. In the project unit 25, the light source 27 and the signal generator 2
8. A light diffraction unit 29 and the like are provided, and a signal from the signal generation unit 28 is configured to project an image in front of the windshield 32 by the refraction of the light diffraction unit 29 and the like.

FIG. 3 shows an embodiment in which an image is projected using a project unit 25 as an image pickup means.
The engine speed and P
The number of rotations of the TO is displayed. The worker is the windshield 3
The number of revolutions of the engine and the number of revolutions of the PTO can be confirmed by visually observing the image of the light projected on the front part of FIG.

FIG. 4 shows a configuration in which a management terminal 30 composed of a microcomputer and the project unit 25 are connected, and a part of the information obtained by the management terminal 30 is displayed in front of a windshield 32. Since the applicant has proposed the management terminal before (for example, Japanese Patent Application Laid-Open No. 7-282135), a detailed description is omitted, but the work start button 30a of the management terminal 30 is pressed at the same time as the work starts. And information on work such as fuel consumption, work time, work area, and the like while the machine is operating are stored in the storage device of the management terminal 30 main body, and are stored in the storage device when the work end button 30b is pressed. Various electronic information is recorded on the IC card 30c. In this embodiment, the management terminal 30 and the project unit 25 are connected by a harness 31, and a part of information in the management terminal 30, that is,
The fuel consumption, the work time available until the fuel becomes empty, and the work area are displayed.

FIG. 5 illustrates an embodiment in which the imaging position is changed. When performing the adjacent tilling work, each time the position of the boundary adjacent portion is reciprocated, the right and left are switched with respect to the center of the tractor. It is important to always check the position of the boundary adjacent part during the work, and therefore, the light diffraction unit 2 is designed to be easily checked.
The display position is imaged to the left or right with respect to the center of the windshield 32 by switching the number 9.

In this embodiment, the PTO speed, the engine speed, and the vehicle speed are displayed. FIG. 6 illustrates a case where the direction sensor is attached to the body to display a deviation of the body from a target. The machine is marked on the windshield 32 so as to be located at the center in the left-right direction, and when the traveling direction of the machine is shifted to the left or right side, the steering direction to be corrected by the steering handle 35 is indicated by an arrow. As shown.

FIG. 7 shows danger information displayed on the windshield 32. That is, when the lateral inclination angle of the aircraft approaches a dangerous overturning angle at which the aircraft is likely to roll over, or when the speed of the aircraft during traveling becomes high and approaches the dangerous speed, the word “danger” is displayed in front of the windshield 32. I have to. FIG. 8 relates to a display device for facilitating the adjacent tilling operation. The imaging camera 40 is positioned above the boundary between the uncultivated land and the cultivated land, and the imaging camera 40 captures the boundary.

The project unit 25 displays a band-shaped boundary f having a predetermined width with respect to the boundary in front of the windshield 32, and simultaneously displays the tractor-machine on the same screen and displays the screen on the screen. The operator instructs the operation of the steering handle 35 so that the set main body falls within the width f of the boundary. FIG. 9 shows various sensor information and values of various setting devices displayed in front of the windshield 32 in conjunction with the key switch.

By looking at the contents, the operator can know the status of the main transmission, the PTO transmission position, the front wheel double speed device, the tillage depth control device, and the like. By knowing the state of the aircraft before starting the engine, dangerous operations and dangerous movements of the aircraft can be detected in advance. FIG. 10 shows a message displayed when the key switch is turned off, in front of the windshield 32.

By displaying messages such as an instruction to turn off the light, an instruction to refuel, an instruction to return the gearshift lever to a neutral position, and an instruction to lower the hydraulic operation lever, the next action can be taken for a person unfamiliar with the work. It is. Although illustration is omitted, the front-rear balance of the body is calculated from the weight applied to the axles of the front and rear wheels and displayed, or the number of gears that can be shifted by comparing the engine speed and the engine specification is displayed, If the load shared by the front wheels is too light, a content for instructing to attach the front weight may be displayed.

[0016]

As described above, according to the present invention, in an agricultural machine with a cabin, a project device for projecting information necessary for the driving operation on the front glass of the cabin is incorporated in the instrument panel. The user can surely grasp the display contents of various instruments and various messages issued by the notification device, etc. while observing the camera, and the operability is remarkably improved without fear of erroneous driving operation.

[Brief description of the drawings]

FIG. 1 is a side view of a tractor and a working machine.

FIG. 2 is a sectional view of a main part of the cabin.

FIG. 3 shows a display example by a project device.

FIG. 4 shows a display example by a project device.

FIG. 5 shows a display example by a project device.

FIG. 6 shows a display example by the project device.

FIG. 7 shows a display example by the project device.

FIG. 8 shows a display example by the project device.

FIG. 9 shows a display example by the project device.

FIG. 10 shows a display example by a project device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tractor 2 Front wheel 3 Rear wheel 4 Engine 5 Transmission case 6 Hydraulic cylinder case 7 Lift arm 8 Lower link 9 Lift rod 12 3-point link device 15 Rotary tillage device 20 Cabin 21 Pilot seat 22 Instrument panel 25 Project unit 32 Windshield

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Kishi 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Ryota Nagano, Inventor Ryota Nagano, 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. Person Koji Furukawa 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. 1 Yakura, Tobe-cho, Iyo-gun Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hirofumi Tsuchiya Tobe-cho, Iyo-gun, Ehime Warehouse address 1 Iseki Co., Ltd. technology unit (72) inventor Noriyuki Yamakawa, Ehime Prefecture Iyo-gun, Tobe-cho, Yakura address 1 Iseki Co., Ltd. technology unit

Claims (1)

[Claims] 1. A monitoring device for an agricultural machine with a cabin, wherein a project device for projecting information necessary for an operation operation on a front glass of the cabin is incorporated in an instrument panel.