JPH0716333B2 - Work machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a work machine provided with an informing device that operates based on a plurality of types of detection such as abnormality detection and work switching.

[Prior Art] As a notification device provided in a work machine, one of a plurality of types of notification target items, for example, when an abnormality is detected or a worker is urged to perform a predetermined work to be performed. There is one configured to start the notification operation when the establishment of one of the notification conditions is detected.

[Problems to be Solved by the Invention]

Considering the notification device as described above, it is desirable to continuously perform the notification operation in order to make the operator surely recognize the content of the notification when performing the notification. For example, the notification is performed by a voice signal. In this case, it is also necessary to stop the notification operation because the continuous notification operation makes the operator troublesome.

In this case, it is possible to manually stop the notification device itself by operating the manual switch, but such an operation of the manual switch is often annoying to the operator.
If the notification device itself can be held in a stopped state in this way, it will not be possible for the worker to recognize the contents of the notification even if a new notification to the worker is required thereafter. There is.

The present invention, in a working machine equipped with an informing device configured to start an informing operation when the establishment of an informing condition of one of a plurality of types of informing objects is detected, the informing operation can be performed with the simplest possible configuration. The purpose is to stop the alarm and restart the notification operation.

[Means for Solving the Problems]

A feature of the present invention is that the working machine as described above is configured as follows.

An informing device that starts an informing operation when the establishment of an informing condition of one of a plurality of types of informing objects is detected, and a restraint that stops the informing device of the informing device after a lapse of a set time from the start of the informing operation The mechanism, and a release means for releasing the restrained state of the restraint mechanism by disengaging the work clutch after the restraint mechanism is activated.

[Action]

(I) With the configuration according to the present invention, when the notification device starts detecting the establishment of one notification condition (or a plurality of notification conditions) among a plurality of types of notification target items, the notification operation is started. Since the notification operation is automatically stopped when the set time elapses from the start of, the operator does not need to operate the manual switch to the stop side of the notification operation.

(Ii) Even if the notification operation is started depending on the state of the work, the operator does not immediately perform a predetermined work for the notification condition (a procedure for canceling the establishment of the notification condition), In some cases, the work is continued as it is, and after some work is completed, the worker performs a predetermined work or the like in response to the notification condition.

For example, in a rice transplanter, which is an example of a working machine, even if a notification that the number of mat-like seedlings on the seedling stand has run out just before the ridge, the machine is stopped and the mat-like seedlings are replenished. This is not the case immediately, but when the planting work is continued and the aircraft is run to the ridge, the mat-like seedlings are replenished at the ridge.

In such a case, even if the notification operation is started as in the present invention, if the notification operation is automatically stopped after the elapse of the set time, the operator turns the manual switch on the stop side of the notification operation. There is no need to worry that you have to continue to work after operating.

(Iii) When the notification operation is stopped as described above, if the work clutch is disengaged after this, the check state by the check mechanism is released, and the notification device returns to the original state in which the notification operation can be started. . Thus, when the restraint state is released by disengaging the work clutch, if it is sensed that one of the plurality of types of notification target items (or a plurality of notification conditions) is satisfied, the notification device is restarted. The notification operation is started.

In this case, since the check state is released based on the work clutch disengagement operation that is always performed during work, the work is continued with the check operation stopped by the check mechanism, and the check condition is continued. However, the situation in which the notification operation is not performed and the work is further continued does not occur.

〔The invention's effect〕

As described above, even if the notification device starts the notification operation due to the establishment of the notification condition, the notification operation automatically stops when the set time elapses, so that the manual switch is operated to the stop side of the notification operation. Need not be performed, and since the notification operation is automatically stopped even when the work is continued as it is, a work machine having good workability can be obtained.

Also, since the restraint state is configured to be released based on the work clutch disengagement operation that is always performed during the work, there is a problem caused by forgetting to release the restraint state and continuing the work as it is. It can be prevented.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 3, at the rear end of the machine body (2) equipped with a driver's seat (1) in the center, a seedling planting device is provided via a link mechanism (4) that moves up and down by the operation of a hydraulic cylinder (3). (A) is connected to form a rice transplanter as an example of a working machine.

As shown in FIG. 3, the seedling planting device (A) has a transmission case (5) to which power from the machine body (2) is transmitted, and a seedling stand (6), 6 on which a mat-like seedling (W) is placed. It comprises one planting arm (7), three leveling floats (8), and a pair of left and right drawing markers (9).

In this rice transplanter, when the number of mat-like seedlings (W) placed on the seedling stand (6) has decreased below a predetermined amount, the planting arm (7)
Even if one of the thread clutches (10) that stop the operation of 2 is left set in the disengaged position (OFF), if the lowering operation of the wire drawing marker (9) is forgotten, and the aircraft ( When the pressure of the lubricating oil of the engine (11) provided in 2) is lowered, the informing device (B) is provided to let the operator recognize each of these states.

As shown in FIG. 1, a seedling break sensor (12) for detecting the decrease of mat-like seedlings (W) on the seedling stand (6), and the state of the entering and cutting positions of each row clutch (10) are detected. A clutch sensor (13), a marker sensor (14) that detects the pulling state of the wire drawing marker (9), and a pressure sensor (15) that detects a pressure drop of the lubricating oil of the engine (11) are provided.
The control device (16) constituting the notification device (B) has a seedling cutting sensor (12), a clutch sensor (13), and a marker sensor (14).
And the sensor signal from the pressure sensor (15) is input.

The signal path from the timer (C) (corresponding to the check mechanism) is input to the control device (16), and the sensor signal from the work sensor (18) that detects the state of the work clutch (17) is also input. Are formed. The work clutch (18) is for performing transmission and transmission interruption operations to the seedling planting device (A), and an operation lever (19) provided on a side portion of the driver's seat (1).
Operated by.

The alarm device (B) is a control device (16) and a buzzer (20).
And the four lamps (21), the lamp (21) indicating the target portion is turned on at the same time as the operation of the buzzer (20) when the notification condition is satisfied, so that the operator can recognize the notification content. Is configured. The notification operation of the notification device (B) is automatically stopped by the timer (C), and after the notification operation is stopped in this manner, the work clutch (1
The alarm operation is started again by the turning operation in 7).

As a result, as shown in FIG. 2, the notification condition is met and one of the seedling cutting sensor (12), clutch sensor (13), marker sensor (14) and pressure sensor (15) is in the ON state. Then, at the same time, the notification signal switches to the ON state, the buzzer (20) operates, and the lamp (21) lights up. When the timer (C) detects that the set time (T) has elapsed from the start of the notification operation, the notification operation of the notification device (B) is stopped. Next working clutch (17)
When the switch is operated, the notification operation is restarted by the release means (D) built in the control device (16). If the notification condition is canceled during this notification operation, the notification signal switches to OFF. Notification operation stops.

The notification signal is generated inside the control device (16) and controls the buzzer (20) and the lamp (21). The notification condition is, for example, that the seedling cutting sensor (12) is a mat seedling (W).
Means a condition in which a notification operation can be performed, which means a state of detecting the absence of.

As shown in FIG. 3 and FIG. 4, direction indicating lamps (22) are attached to both left and right sides of the seedling stand (6), and a meter panel (not shown) in front of the driver's seat (1) is provided. An indicator mechanism (E) for indicating the direction of movement of the wire drawing marker (9) is attached to. The indicating mechanism (E) is also used for confirming the lighting of the lamp (22) for indicating a direction when traveling on the road. The indicator mechanism (E) is operated by the left and right lamps (23), the central lamp (24), and the line drawing marker (9) 2
One switch (25) and a changeover switch (26) operated in conjunction with the work clutch (17).

As a result, when the work clutch (17) is operated to the disengaged position when traveling on the road, the changeover switch (26)
Is operated to the lighting side of the direction indicator lamp (22), and the direction indicator lamp (2
2) and the left and right lamps (23) of the indicating mechanism (E) are turned on at the same time. On the contrary, when working, the descending side of the drawing marker (9) of the lamp (23) of the indicating mechanism (E) is lit, and when both the drawing markers (9) are not in the descending state, the central lamp (24) ) Is lit up.
Further, an intermittent drive circuit (28) for blinking each of the lamps (22), (23), (24) is provided.

[Another embodiment]

The present invention can be applied to various working machines such as a truck and an agricultural tractor other than the rice transplanter. Further, the releasing means (D) can be configured as a hardware such as a logic gate or a software such as a program.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a working machine according to the present invention, FIG. 1 is a block diagram showing the configuration of a notification device, FIG. 2 is a timing chart showing the relationship between the operation of a work clutch and a notification signal, and FIG. FIG. 4 is an overall side view of the rice transplanter, and FIG. 4 is an electric circuit diagram of a configuration showing the direction of the direction indicator and the direction of withdrawal of the drawing marker. (17) …… Work clutch, (B) …… Informing device, (C)
...... Checking mechanism, (D) ...... Release means, (T) ...... Set time.

Claims (1)

[Claims] 1. An informing device (B) which starts an informing operation when the establishment of an informing condition of one of a plurality of types of informing objects is detected, and a set time (from the informing operation start of the informing device (B)). After the elapse of T), the check mechanism (C) that stops the notification operation of the notification device (B), and the operation of the work clutch (17) after the check mechanism (C) is operated, the check mechanism (C) of the check mechanism (C) is stopped. A working machine equipped with a releasing means (D) for releasing the restrained state.