JPH08270018A - Operating monitor and rotary device thereof - Google Patents

Abstract

PURPOSE: To provide an operating monitor excellent in operability. CONSTITUTION: A drive seat 2 is installed in a cabin and an operating base 4 is installed at the side of the drive seat 2. An operating monitor 7 is rotatably installed in front of the operating base 4. The operating monitor 7 can be rotated between the containing position and the operating position. The containing position is located in the operating base 4 side to contain the operating monitor 7 and the operating position is located in the place corresponding to the front part of the drive seat 2 so that a driver can easily control the operating monitor 7. A starter switch SW1 and a sitting switch SW2 are provided on the operating base 4 and the drive seat 2 respectively. When a driver puts on the starter switch SW1, and sits down on the drive seat 2 and puts on the sitting switch SW2, the operating monitor 7 is rotated from the containing position to the operating position. When a driver stands from the drive seat 2 and puts off the sitting switch SW2, the operating monitor 7 is rotated from the operating position to the containing position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation monitor used for various machine vehicles such as construction vehicles and agricultural machines.

[0002]

2. Description of the Related Art Conventionally, a cab (cabin) of a construction vehicle or the like
Inside, an operation base including various levers and a display unit is provided on the side of the driver's seat. An operation monitor is provided at the front end of the operation base. The operation monitor has a display and various switches. Then, the driver operates the switch provided on the operation monitor to turn on / off the system of the operation monitor, select the information displayed on the display, and the driver visually confirms the display on the display. Recognize various information.

In this case, since the operation monitor and the like are provided on the side of the driver's seat, there is no obstacle in front of the driver's seat that blocks the driver's view, so that the driver can surely secure the front view. It has become.

[0004]

However, since the operation monitor is on the side, the driver needs to extend his arm to operate the operation monitor, and it is difficult to operate the switch of the operation monitor. There is a problem. Similarly, since the operation monitor is on the side, the driver has to change the line of sight and the posture to see the display of the operation monitor, which makes it difficult to see the display. Therefore, the usability of the operation monitor is poor.

The present invention has been made to solve the above problems, and an object thereof is to provide an operation monitor excellent in operability and a turning device thereof.

[0006]

According to the first aspect of the present invention,
The vehicle body is rotatably supported by a support shaft on the side of the driver's seat in the driver's cab, and is located between the retracted position on the side of the driver's seat and the operating position on the front of the driver's seat. The point is that it is provided so that it can turn.

According to a second aspect of the present invention, the vehicle body is rotatably supported by a support shaft at a driver's seat side portion in a driver's cab, and the driver's seat is stored at a storage position on a side portion of the driver seat about the support shaft. An operation monitor provided so as to be rotatable between an operation position located in the front portion, a drive unit for rotating the operation monitor about the support shaft, and a storage position detection unit for detecting the storage position, The gist of the present invention is to include an operation position detecting means for detecting the operation position and a control means for controlling the driving means based on a detection signal from the detecting means.

According to a third aspect of the invention, in the second aspect of the invention, a seating switch is provided in the driver's seat,
The gist of the control means is to control the drive means based on the detection signal from the seating switch and turn the operation monitor.

According to a fourth aspect of the present invention, in the invention according to the second or third aspect, the control means includes a position detecting means for detecting a turning position of the operation monitor and a position detecting means between the operation position and the storage position. The position setting means for setting an arbitrary midway turning position is connected, and the control means controls the operation monitor to the turning position set by the position setting means based on the detection and setting signals from the position detecting means and the position setting means. The point is that the positioning is performed.

[0010]

Therefore, according to the first aspect of the invention, the operation monitor is pivotally supported on the support shaft so as to be pivotable at the driver's seat side portion in the driver's cab of the vehicle body. For this reason, the operation monitor can be swung between the operation position and the storage position. For example, when the driver uses the operation monitor, the operator rotates the operation monitor to position it at the operation position, and when not in use, the operation monitor is used. Swivel to the storage position.

According to the second aspect of the invention, the control means drives the drive means to rotate the operation monitor from the storage position to the operation position or from the operation position to the storage position. When the operation position detecting means detects the operation position during turning from the storage position to the operation position, the control means stops the driving of the driving means and positions the operation monitor at the operation position.
Further, when the storage position detecting means detects the storage position during turning from the operation position to the storage position, the control means stops the driving of the drive means and positions the operation monitor at the storage position. In this case, for example, the driver operates the vehicle by operating the operation monitor at the operation position, and stores the operation monitor in the storage position after the operation is completed.

According to the invention of claim 3, a seating switch is provided in the driver's seat. Then, the control means controls the drive means based on the detection signal from the seating switch, and turns the operation monitor. For example, when a seating signal from the seating switch indicating that the driver is seated in the driver's seat is output to the control means, the control means drives the drive means to rotate the operation monitor from the storage position to the operation position.
When the output of the seating signal is stopped, the control means drives the driving means to rotate the operation monitor from the operation position to the storage position.

According to the fourth aspect of the present invention, the control means is provided with a turning position detecting means for detecting a turning position of the operation monitor, and an arbitrary turning midway position between the operating position and the storage position. Is connected to the turning position setting means. Therefore, the control means can position the operation monitor at the turning position between the operation position set by the turning position setting means and the storage position based on the detection and setting signals from the turning position detecting means and the turning position setting means. .

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. 1 is a plan view showing the inside of a cabin of a construction vehicle such as a power shovel, and FIG. 2 is a side view thereof.

A driver's seat 2 is provided in the cabin 1, and a seating switch SW2 is provided in the driver's seat 2.
A traveling lever 3 is provided in front of the driver's seat 2.
Further, operation bases 4 are provided on both sides of the driver's seat 2.
The operation base 4 has various display panels 5 and work levers 6
Etc. are provided. A starter switch SW1 is provided on the operation base 4a located on the right side.
An operation monitor 7 is provided on the front side of the operation base 4a. The operation monitor 7 is provided with a display 8 and various switches 9. For example, a system switch SW5 for turning on / off the system of the operation monitor 7, a switch for operating a power shovel, a switch for selecting a display on the operation monitor 7, and the like are provided.

The operation monitor 7 is rotatably provided,
It is possible to turn between a storage position on the right side of the driver's seat 2 and an operation position on the front of the driver's seat 2. In the present embodiment, the operation monitor 7 is provided with a setting knob 10 as various switches for setting an arbitrary turning position between the storage position and the operating position (hereinafter referred to as "turning midway position"). There is. Next to the setting knob 10, a turning button 10a for turning the operation monitor 7 to the set midway turning position is provided.

Further, windshields G are arranged in front of and on the left and right sides of the cabin 1, so that the driver can see the outside of the cabin 1 through the windshield G while sitting on the driver's seat 2. There is.

FIG. 3 shows a plan sectional view of a mechanism for rotating the operation monitor 7, and FIG. 4 shows a side sectional view thereof. A cylindrical hollow support shaft 11 is provided in the operation base 4. The inner ring of the bearing 12 is fitted and fixed to the outer periphery of the support shaft 11. A mounting base 13 is attached to the outer ring of the bearing 12, and the mounting base 13 is pivotally provided by the bearing 12. Further, the inner ring portion of the bearing 12 is securely fixed to the support shaft 11 with a nut 12a.

The mounting base 13 is flat and has a mounting portion 1
4 and the base end portion 15. The mounting portion 14 is the operation monitor 7
Is attached. That is, the operation monitor 7 is mounted on the mounting base 13
Based on the turning of the, the support shaft 11 is turned.

The base end portion 15 is formed with a semicircular portion having a semicircular shape, and a gear portion 16 with a gear cut off is formed in the semicircular portion. A gear motor 18 as a driving means is provided in the operation base 4. An output shaft 19 is provided on the gear motor 18, and a drive gear 20 is fitted on the output shaft 19. The drive gear 20 is meshed with the gear portion 16 of the mounting base 13. That is, the gear motor 18 is driven and the output shaft 1
When the gear 9 is rotated, the mounting base 13 is rotated by the engagement of the drive gear 20 and the gear portion 16. In this case, when the output shaft 19 rotates normally, the operation monitor 7 rotates from the storage position toward the operation position, and when the output shaft 19 rotates in the reverse direction, the operation monitor 7 rotates from the operation position toward the storage position.

A turning position detecting volume VR1 as a turning position detecting means is provided in the operation base 4. This turning position detecting volume VR1 is provided,
The turning position detecting volume VR1 meshes with the gear portion 16 to detect the turning position of the mounting base 13.

A disc 15a is attached to the upper surface of the base end portion 15. A cutout 15b is formed in the disc 15a. The disk 15a is adapted to rotate together with the operation base 4. In the operation base 4, there are provided a storage position switch SW3 as a storage position detecting means including a limit switch for detecting a storage position and an operation position switch SW4 as an operation position detecting means including a limit switch for detecting an operation position. ing. That is, when the storage position switch SW3 detects the notch 15b, the operation monitor 7 is located at the storage position. When the operation position switch SW4 is pressed by the side portion 13a of the mounting base 13, the operation monitor 7 is positioned at the operation position.

Further, a working lever 6 is inserted into the support shaft 11. A bellows 17 is attached to the outer periphery of the work lever 6. That is, the inside of the operation base 4 is protected by the bellows 17.

Next, the electrical construction of the mobile operation monitor will be described. FIG. 5 shows a drive circuit for turning the operation monitor 7. A DC power supply 31 is provided in this drive circuit. The gear motor 18 is connected to the DC power supply 31 (24V). A forward rotation switch 32 and a reverse rotation switch 33 are provided in parallel between the gear motor 18 and the power supply 31. The forward switch 32 has a first contact 32a connected to a power source.
And a second contact 32b connected to ground. Similarly to the case of the forward rotation switch 32, the reverse rotation switch 33 is also provided with a third contact 33a connected to the power source and a fourth contact 33b connected to the ground.

That is, when the gear motor 18 is normally rotated, the normal rotation switch 32 is connected to the first contact and the reverse rotation switch 33 is connected to the fourth contact. Then, the power from the DC power supply 31 is supplied to the gear motor 18, and the gear motor 18
Turns forward. When the gear motor 18 is rotated in the reverse direction, the reverse rotation switch 33 is connected to the third contact and the forward rotation switch 32 is connected to the second contact. Then, the power from the DC power supply 31 is supplied to the gear motor 18, and the gear motor 18
Is reversed. Further, when stopping the normal rotation / reverse rotation (rotation) of the gear motor 18, the normal rotation switch 32 is connected to the second switch 32b, and the reverse rotation switch 33 is connected to the fourth switch 34b. Then, the power supply from the DC power supply 31 to the gear motor 18 is cut off, and the rotation of the gear motor 18 is stopped.

Further, the drive circuit has a CPU as a control means.
34 are provided. The CPU 34 is connected to the DC power supply 31 via a constant voltage circuit 35. DC power supply 3
1 and the constant voltage circuit 35, a starter switch SW1
Is provided. When the starter switch SW1 is turned on, an on signal of a constant voltage (5V) is output. This starter-on signal starts the engine that drives the construction vehicle.

A seating switch SW2, a storage position switch SW3, an operation position switch SW4, and a system switch SW5 are connected to the CPU 34. These switches SW2 to SW5 are connected to the DC power source 31 via the constant voltage circuit 35.
It is connected to the. Therefore, each switch SW2 to SW5
When is turned on, an ON signal is output to the CPU 34 as in the case of the switch SW1. The ON signal of the seating switch SW2 (indicates that the driver is seated in the driver's seat. The ON signal of the storage position switch SW3 indicates that the operation monitor 5 is not in the storage position.
When the storage position switch SW3 is turned off, the operation monitor 5 is located at the storage position. The ON signal of the operation position switch SW4 indicates that the operation monitor 5 is in the operation position.
The ON signal of the system switch SW5 indicates that the operation monitor 5 is in an operable state.

The CPU 34 is also connected to a position detection volume VR1 composed of a variable resistor and a turning position setting volume VR2 as a turning position setting means. Each of the volumes VR1 and VR2 is connected to the DC power supply 31 via the constant voltage circuit 35. Position detection volume V
The resistance value of R1 changes according to the turning movement of the operation monitor 5, and outputs a signal of a voltage value that changes according to the changing resistance value to the CPU 34 as a position detection signal. The turning position setting volume VR2 outputs, as a position setting signal, a voltage value signal indicating a resistance value set based on the setting knob 10.

Further, the CPU 34 has the turning button 10
a is connected. The turning button 10a is turned on by being pressed, and an on signal is output to the CPU 34. The ON signal from the turning button 10a is output only while the turning button 10a is being pressed.

The CPU 34 includes a first transistor T and a second transistor T.
The bases of R1 and TR2 are connected. The first electromagnetic coil RY1 is connected to the collector of the first transistor TR1. The first electromagnetic coil RY1 is connected to the DC power supply 31 via the starter switch SW1. The second electromagnetic coil R is provided at the collector of the second transistor TR2.
Y2 is connected. The second electromagnetic coil RY2 is connected to the DC power supply 31 via the starter switch SW1. In this case, the first electromagnetic coil RY1 and the first and second contacts 32a and 32b constitute a forward rotation relay.
Similarly, the second electromagnetic coil RY2 and the third and fourth contacts 33
A reverse relay is formed by a and 33b.

That is, when the starter switch SW1 is closed (turned on) and the CPU 34 outputs an ON signal only to the first transistor TR1, power from the DC power supply 31 is supplied to the first electromagnetic coil RY1 and the first electromagnetic coil RY1. Is excited. Then, the forward rotation switch 32 has the first contact 32a.
And the gear motor 18 rotates in the normal direction. At the time of normal rotation of the gear motor 18, the starter switch SW1 is turned off or the on signal from the CPU 34 is turned off, and the first switch
When the electromagnetic coil RY1 is demagnetized, the forward rotation of the gear motor 32 is stopped.

On the other hand, when the starter switch SW1 is closed (turned on) and the CPU 34 outputs an ON signal only to the second transistor TR2, the power from the DC power supply 31 is supplied to the second electromagnetic coil RY2 and the second electromagnetic coil RY2. Is excited. Then, the reverse switch 32 has the second contact 33a.
, And the gear motor 18 rotates in the reverse direction. During this reverse rotation, the starter switch SW1 is turned off or the CPU
The ON signal from 34 turns off, and the second electromagnetic coil RY2
Is demagnetized, the rotation of the gear motor 18 is stopped.

The CPU 34 determines that the engine of the construction vehicle has started based on the starter-on signal. The CPU 34 determines that the driver is seated in the driver's seat based on the ON signal from the seating switch SW2. Then, the CPU 34 drives the gear motor 18 to rotate the operation monitor 5 from the storage position to the operation position by outputting an ON signal only to the first transistor TR1. When the ON signal from the seating switch SW2 is turned off, the CPU 34 determines that the driver has left the driver's seat and outputs the ON signal only to the second transistor TR2 to drive the gear motor 18 and operate the operation monitor 5
Swivel from the operating position to the storage position. And CP
When an ON signal is output from the system switch SW5, the system of the CPU 34 turns on, and the U34 enters a controllable state.

When the ON signal from the storage position switch SW3 is turned off, the CPU 34 determines that the operation monitor 7 is in the storage position. When the ON signal from the storage position switch SW3 turns off when the CPU 34 turns from the operation position of the operation monitor 7 to the storage position, the CPU 3 turns off.
Reference numeral 4 turns off the ON signal of the second transistor TR2, stops driving the gear motor 18, and stops turning of the operation monitor 7.

When the ON signal is output from the operation position switch SW4, the CPU 34 determines that the operation monitor 5 is in the operation position. Then, when the ON signal from the operation position switch SW4 is output when the CPU 34 turns from the storage position of the operation monitor 5 to the operation position, the CPU 34
Reference numeral 34 turns off the ON signal of the first transistor TR1, stops driving the gear motor 18, and stops turning of the operation monitor 5.

The CPU 34 controls the turning position detection volume VR.
The turning position of the operation monitor 5 is determined on the basis of the position detection signal from 1. When the ON signal is output from the turn button 10a, the CPU 34 outputs the ON signal to the first transistor TR1 or the second transistor TR2 to drive the gear motor 18. When the gear motor 18 is driven, the CPU 34 compares the voltage value of the position detection signal from the turning position detection volume VR1 with the voltage value of the position setting signal from the turning position setting volume VR2, and detects the position detection signal and the position setting signal. It is determined whether and match (the voltage values of both signals match).
Then, when the position detection signal and the position setting signal match,
The first transistor TR1 or the second transistor TR
The output of the ON signal to 2 is stopped, and the operation monitor 7 is positioned at the set midway turning position.

At this time, the CPU 34 outputs the ON signal from the turning button 10a, and when the ON signal from the storage position switch SW3 is OFF, outputs the ON signal only to the first transistor TR1 to output the ON signal to the gear motor 18. When the ON signal is output from the operation position switch SW3, the ON signal is output only to the second transistor TR2 and the gear motor 18 is rotated in the reverse direction.

Next, the operation monitor 7 configured as described above.
The action and effect of will be described. Normally, the operation monitor 7 in the cabin 1 is located at the storage position before starting the engine of the construction vehicle body. Then, the driver sits in the driver's seat 2 and operates the starter switch SW1 to start the engine of the construction vehicle. The CPU 34 inputs an ON signal from the starter switch SW1 and the seating switch SW2. Then, the CPU 34 causes the seating switch SW
Based on the ON signal from 2, the ON signal is output to the first transistor TR1 and the gear motor 18 is normally rotated. At this time, the operation monitor 7 turns from the storage position toward the operation position. Then, when the operation monitor 7 reaches the operation position, the operation position switch SW4 is turned on, and the ON signal from the operation position switch SW4 is output to the CPU 34.
When the ON signal is output from the operation position switch SW4, the CPU 34 stops driving the gear motor 18 and positions the operation monitor 7 at the operation position.

When the operation monitor 7 is positioned at the operation position, the driver turns on the system switch SW5, and operates the various switches provided on the operation monitor 7 while the system switch SW5 is turned on to operate the construction. The vehicle is operated and the display on the display 8 is selected. When the operation of the operation monitor 7 is completed, the driver first turns off the system switch SW5 and then leaves the driver's seat 2.

When the driver leaves the driver's seat 2, the seating switch SW2 is turned off. When the seating switch SW2 is turned off, the CPU 34 outputs an on signal only to the second transistor TR2 to rotate the gear motor 18 in the reverse direction. At this time, the operation monitor 7 turns from the operation position toward the storage position. When the operation monitor 7 reaches the storage position, the storage position switch SW3 is turned off. Then, CPU3
4 stops the ON signal to the second transistor TR2 based on the OFF of the ON signal from the storage position SW3. When the output of this ON signal is stopped, the drive of the gear motor 18 is stopped and the operation monitor 7 is positioned at the storage position.

Next, a case where the driver positions the operation monitor 7 at a desired turning position between the operation position and the storage position (hereinafter referred to as "turning midway position") will be described. First, a case will be described in which the operation monitor 7 is positioned from the storage position to the midway turning position desired by the driver.

In this case, the driver starts the starter switch SW.
1 is operated to output an ON signal from the starter switch SW1 to the CPU 34. Next, the driver turns on the system switch SW5. Next, the driver sets the setting knob 10
Is operated to set a desired midway turning position. When a desired midway turning position is set, the turning position setting volume VR2
A position setting signal having a voltage value corresponding to the midway turning position set by is output.

Then, the driver pushes the turn button 10a. Then, the turn-on button 10a outputs an ON signal. When the ON signal is output to the CPU 34, the CPU 34 outputs the ON signal only to the first transistor TR1, the gear motor 18 rotates in the normal direction, and the operation monitor 7 turns from the storage position to the turning position. During this turning, the CPU 34 compares the voltage value of the position setting signal with the voltage value of the position detecting signal from the turning position detecting volume VR1, and when the voltage values match, the operation monitor 7 reaches the midway turning position. If it is determined that it has been done, the ON signal to the first transistor TR1 is turned off. Then, the gear motor 1
8 is stopped, and the operation monitor 7 displays the setting knob 1
It is positioned at the mid-turn position set at 0.

Next, a description will be given of a case where the driver is seated in the driver's seat 2 and the accelerator switch SW1 and the system switch SW5 are turned on, and the operation monitor 7 is turned from the operation position to the midway turning position.

First, the driver operates the setting knob 10 to set a desired midway turning position. Then, the CPU 34
Inputs a position setting signal having a voltage value corresponding to the midway turning position set from the turning position setting volume VR2.

When the driver pushes the turn button 10a, an ON signal is output from the turn button 10a. When this ON signal is output to the CPU 34, the CPU 34 outputs an ON signal only to the second transistor TR2, the gear motor 18 rotates in the reverse direction, and the operation monitor 7 turns from the operation position to the storage position. During this turning, the CPU 34 compares the voltage value of the position setting signal with the voltage value of the position detecting signal from the turning position detecting volume VR1, and when the voltage values match, the operation monitor 7 reaches the midway turning position. If it is determined that it has been done, the ON signal to the second transistor TR2 is turned off. Then, the drive of the gear motor 18 is stopped, and the operation monitor 7 is positioned at the midway turning position set by the setting knob 10.

Subsequently, as described above, after the operation monitor 7 is positioned at the midway turning position, the midway turning position (previous turning midway position) is changed to another midway turning position (next turn midway position).
The case of turning to and positioning will be described.

First, the driver operates the setting knob 10 to set another turning midway position different from the position where the operation monitor 7 is currently positioned. Then, the position setting signal corresponding to the midway turning position set from the turning position setting volume VR2 is output.

When the driver pushes the turn button 10a, an ON signal is output from the turn button 10a. When this turn-on signal is output to the CPU 34, the CPU 3
4 determines whether the next turning midway position is located on the storage position side or the operation position side with respect to the front turning midway position.
Then, the CPU 34 outputs an ON signal to the first transistor TR1 when it determines that the next turning midway position is located on the operation position side, and outputs an ON signal to the second transistor TR2 when it determines that it is located on the storage position side.

Then, the first transistor TR1 or the second transistor TR1
The gear motor 18 is normally or reversely rotated based on the ON signal to the transistor TR2, and the operation monitor 7 is rotated. During this turning, the CPU 34 compares the voltage value of the position setting signal with the voltage value of the position detecting signal from the turning position detecting volume VR1, and when the voltage values match, the operation monitor 7 reaches the next turning midway position. When it is determined that the signal has been applied, the ON signal to the first transistor TR1 or the second transistor TR2 is turned off. Then, the drive of the gear motor 18 is stopped, and the operation monitor 7 is positioned at the midway position of the next turning set by the setting knob 10.

Therefore, according to the present embodiment, the operation monitor 7
Since the can be turned, the operability of the operation monitor 7 can be improved by positioning the operation monitor 7 at the operation position during operation. In this case, when operating the operation monitor 7, only the small operation monitor 7 is swiveled to be positioned at the operation position. Therefore, in comparison with the case where the entire operation base 4 having a relatively large size and having a large area is installed in front of the driver's seat 2. Thus, the driver's front view can be widened. Moreover, this operation position is located in the front part of the driver's seat 2, and is located below the front part with respect to the position of the eyes of the driver seated in the driver's seat 2. Therefore,
Normally, the driver is at a different position with respect to the line of sight (mainly the front front direction) that he or she often sees when performing work and driving on a construction vehicle, and is not visually recognized because of the work and driving by the construction vehicle. Since the position is the directional position, it is possible to minimize the obstruction of the visual field during driving.

Further, the operation monitor 7 turns based on the on / off state of the seating switch SW2. That is, when the driver sits in the driver's seat 2, the operation monitor 7 is automatically swiveled and positioned from the retracted position to the operated position, and the driver is seated in the driver's seat 2
When separated from, the operation monitor 7 is automatically pivoted and positioned from the operation position to the storage position. Therefore, it is not necessary for the driver to manually turn the operation monitor 7 in order to operate the operation monitor 7, and the operation monitor 7 can be reliably turned / positioned to the operation position simply by the driver sitting on the driver's seat 2. By leaving the driver's seat 2, the operation monitor 7 can be reliably operated.
The operability of the operation monitor 7 can be further improved since it can be swiveled and positioned to the storage position.

By operating the setting knob 10, the driver can easily position the operation monitor 7 at the midway turning position desired by the driver. In this case, the CPU 34 can easily position the operation monitor 7 at the mid-turn position by comparing the voltage values from the volumes VR1 and VR2. Moreover, since the driver can position the operation monitor 7 at a desired midway turning position, it is possible to position the operation monitor 7 at a position where it is easier to operate or a position where the operation monitor 7 does not obstruct the field of view. Therefore, the operability of the operation monitor 7 can be further improved, and the obstruction of the visual field by the operation monitor 7 can be further reduced.

The present invention is not limited to the above embodiments, but may be modified as appropriate and carried out as follows without departing from the spirit of the invention. (1) In the above embodiment, the present invention is applied to the operation monitor 7 for operating a construction vehicle such as a power shovel, but may be applied to an operation monitor for operating an agricultural machine such as a tractor.

(2) In the above embodiment, the seating switch SW
The operation monitor 7 turned based on the turning on / off of 2. Alternatively, the operation monitor 7 may be turned based on whether the starter switch SW1 is turned on or off. That is, when the starter switch SW1 is turned on, the operation monitor 7 is swung from the storage position to the operation position and positioned at the operation position, and when the starter switch SW1 is turned off, the operation monitor 7 is swung from the operation position to the storage position. It is positioned in the storage position. Therefore, the operation monitor 7 turns based on the start of the engine of the construction vehicle regardless of the seating of the driver on the driver's seat 2, so that even if the driver leaves the driver's seat 2 for a short time, Since the operation monitor 7 is held at the operation position, unnecessary turning of the operation monitor 7 can be prevented.

The operation monitor 7 may be turned based on the on / off state of the system switch SW5. In this case, the operation monitor 7 is swung from the storage position to the operation position when the system switch SW5 is turned on and positioned at the operation position, and is swung from the operation position to the storage position when the system switch SW5 is turned off and stored. Be positioned in position. In this case, since the operation monitor 7 is turned based on the ON / OFF state of the system switch SW5, the operation monitor 7 is turned on only when the operation monitor 7 in which the system switch SW5 is actually on allows various operations / driving of the construction vehicle. 7 can be positioned at the operating position.

(3) In the above embodiment, the operation monitor 7
May be manually turnable between the operating position and the storage position. In addition to the seating switch SW2, a manual turning switch that can be manually operated by the driver is provided in the driver's seat 2, and the operation monitor 7 turns between the retracted position and the turning position based on the switch operation. You may.

(4) In the above embodiment, the gear motor 18 and the mounting base 13 are connected by meshing with a gear. However, for example, the mounting base 13 may be connected to the output shaft 19 of the gear motor 18 as the driving means. Good.

(5) In the above embodiment, the support shaft 11 may be solid rather than hollow. In this case, the support shaft 11 is provided at a position different from the work lever 6. The technical ideas other than the claims that can be understood from the above embodiments will be described below along with their effects.

(1) In the invention described in claims 1 to 4,
The vehicle is a construction vehicle. A turning device for an operation monitor. According to this turning device, the operability of the construction vehicle can be improved, the visibility from the construction vehicle can be widened, and the workability of the construction vehicle can be improved.

[0061]

As described above in detail, according to the first aspect of the invention, since the operation monitor can be turned to the operation position during the operation, the operability of the operation monitor can be improved. . According to the second aspect of the present invention, the operability of the operation monitor can be improved because the operation monitor can be swung to the operation position when the operation monitor is operated. Moreover, since the operation monitor can be turned under the control of the control means, the operation monitor can be easily turned. According to the invention described in claim 3, the operation monitor can be easily positioned at the operation position and the storage position based on the detection signal from the seating switch. According to the invention as set forth in claim 4, the operation monitor can be easily positioned at the mid-turning position located between the operation position and the storage position.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing the inside of a cabin.

FIG. 2 is a side cross-sectional view showing the inside of a cubin.

FIG. 3 is a plan sectional view showing a turning mechanism of the operation monitor.

FIG. 4 is a side sectional view showing a turning mechanism of the operation monitor.

FIG. 5 is a circuit diagram showing a drive circuit for turning the operation monitor.

[Explanation of symbols]

2 ... Driver's seat, 7 ... Operation monitor, 11 ... Support shaft, 18 ... Gear motor as drive means, 34 ... C as control means
PU, SW2 ... Seating switch, SW3 ... Storage position switch as storage position detecting means, SW4 ... Operation position switch as operating position detecting means, VR1 ... Turning position detecting volume as turning position detecting means, VR2 ... Turning position setting means Turn position setting volume as.

Claims (4)

[Claims] 1. A storage position, which is pivotally supported by a support shaft on the side of the driver's seat in the driver's cab of the vehicle body, and which is located on the side of the driver's seat with the support shaft as the center, and on the front of the driver's seat. An operation monitor that can be rotated to and from the position. 2. A storage position, which is pivotally supported by a support shaft on the side of the driver's seat in the driver's cab of the vehicle body, which is located on the side of the driver's seat around the support shaft, and an operation located on the front of the driver's seat An operation monitor which is provided so as to be rotatable between a position and a position, drive means for rotating the operation monitor around the support shaft, storage position detection means for detecting the storage position, and detection of the operation position A turning device for an operation monitor, comprising: an operation position detection means; and a control means for controlling a drive means based on a detection signal from the detection means. 3. The turning device for an operation monitor according to claim 2, wherein a seating switch is provided in the driver's seat, and the control means controls the driving means based on a detection signal from the seating switch to turn the operation monitor. 4. The control means includes a turning position detecting means for detecting a turning position of an operation monitor, and a turning position setting means for setting an arbitrary turning midway position between the operating position and the storage position. And the control means is arranged to position the operation monitor at the turning position set by the turning position setting means on the basis of the detection and setting signals from the turning position detecting means and the turning position setting means. A turning device for the operation monitor described.