JP2014172738A - Work time alarm device for work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work time alarm device for a work vehicle which has less discomfort caused by time difference from operation input for engine driving or other operation input to actual driving.SOLUTION: The work time alarm device for a work vehicle comprises: a work vehicle body having an engine; a working part connected to the engine and driving by power transmission from the engine; a control part for operating driving and stopping of the engine, and driving and stopping of an actuation part; and an alarm part for alarming to timing when the working part can be driven based on operation-related information.

Description

  The present invention relates to a work time notification device for a work vehicle, and more particularly, to a work time notification device for a work vehicle that is less discomfort due to a time difference from an operation input to actual driving.

  2. Description of the Related Art Conventionally, an aerial work vehicle equipped with an engine often has a function capable of operating the engine to be driven and stopped with an operation panel on a work table. For example, Patent Document 1 describes an operation tool 17 that starts and stops an engine 7 provided on a workbench 3 (see Claim 1 of Patent Document 1 and paragraphs [0010] to [0013]). ).

  However, once the engine is stopped, even if an attempt is made to input a predetermined operation on the workbench, the input of the predetermined operation becomes effective only after the engine is driven. Therefore, it is necessary to drive the engine first. That is, when a predetermined operation is performed from the engine stop state, it is necessary to first input the engine drive from the workbench and wait until the operation input becomes valid after the engine is driven.

  For this reason, there is a time difference from when the engine is driven until the input of a predetermined operation is actually valid, so the operator often feels uncomfortable due to the time difference.

JP-A-4-246098

  The problem to be solved by the present invention is to provide a work time notification device for a work vehicle that is less likely to be uncomfortable due to a time difference from engine drive operation input or other operation input to actual drive.

  As means for solving the above-described problems, a work vehicle work time notification device according to the present invention includes a work vehicle body having an engine, a work unit connected to the engine and driven by transmission of power from the engine, and the engine. A control unit that operates the driving and stopping of the working unit and the driving and stopping of the working unit, and a notification unit that notifies the timing at which the working unit can be driven based on operation-related information of the control unit.

  The operation-related information is preferably information related to the engine driving operation or the working unit driving operation input by the control unit.

  When the engine driving operation is input to the control unit, the notification unit is set to a rotation speed at which the engine can drive the working unit when an engine rotation signal indicating that the engine is rotating is input to the control unit. It is preferable to notify when the engine power is reached or when the engine power is transmitted to the working unit.

  It is also preferable that the notification unit performs notification by sound.

  Furthermore, it is also preferable that the engine has an idling stop function.

  As described above, according to the work time notification device for a work vehicle according to the present invention, when the operation of the work unit is enabled or when the operation of the work unit is performed, the worker recognizes by notification. Can do. Therefore, it becomes easy for the worker to grasp the timing when the work can be performed or the timing when the operation is actually executed. If the timing is easy to grasp, there is a sense of incongruity due to the time difference from the operation input of the working unit to the actual execution of the operation until the environment in which another operation can actually be performed from the engine driving operation is established. Can be reduced.

  In addition, by setting the timing of notification based on various driving conditions of each member and the signals accompanying the driving status, the operator can grasp the timing at the optimal timing.

  If the notification form is sound or alarm sound, the operator does not need to look at the control panel of the control unit, so the timing can be easily grasped and other work can be performed. It is possible to grasp the above timing.

  Furthermore, a work vehicle equipped with an engine having an idling stop function has a large time lag from when the engine is operated until the environment where it can be actually operated is prepared, or until when the operation is actually executed from the actual operation input. Therefore, it is preferable to reduce the uncomfortable feeling caused by the time difference.

FIG. 1 is a schematic explanatory diagram of a work vehicle equipped with an embodiment of a work vehicle time notification device according to the present invention. FIG. 2 is a block diagram showing a control system of an embodiment of a work time notification device for a work vehicle according to the present invention.

  Hereinafter, a work vehicle time notification device for a work vehicle according to the present invention will be described with reference to the drawings. First, FIG. 1 shows a work vehicle 1 provided with a work vehicle time notification device according to the present invention.

  As shown in FIG. 1, the work vehicle 1 includes a work vehicle main body 2, a work table 3, an upper controller 4, and a speaker 5.

  The work vehicle main body 2 includes an engine (not shown in FIG. 1), a lower controller (not shown in FIG. 1), an outrigger 6, and a jack 7. The engine may be an internal combustion engine that is driven by an appropriate fuel and can be repeatedly driven and stopped during work. Examples of the fuel supplied to the engine include gasoline, light oil, biofuel, liquefied petroleum gas (LPG), liquefied natural gas (LNG), and hydrogen gas. The outrigger 6 and the jack 7 are members used for the purpose of balancing the entire work vehicle 1 when the work table 3 is raised and lowered during work. In FIG. 1, the outrigger 6 and the jack 7 are shown only on the left side in the forward direction of the work vehicle 1. The outrigger 6 and the jack 7 project the outrigger 6 in a substantially horizontal direction and further extend the jack 7 in a substantially vertical direction so that the tire of the work vehicle 1 is separated from the ground contact surface to support the work vehicle main body 2. Use. The lower controller can be provided, for example, behind the driver's seat in the work vehicle main body 2 and can adopt the same operation input method as the upper controller 4 described later. The lower controller will be described in detail with reference to FIG. The work vehicle main body 2 is an example of the work vehicle main body in the work vehicle work time notification device according to the present invention.

  The work table 3 is attached to the rear of the work vehicle main body 2 via a turntable 8. The turntable 8 is a member that can turn around an axis substantially orthogonal to the ground contact surface of the work vehicle main body 2. The swivel base 8 is one member that is mechanically connected to the engine and is driven by transmission of power from the engine.

  A boom 9 extends from the swivel base 8. The boom 9 is a member whose length can be expanded and contracted, a cylindrical member is combined in a nested manner, and an expansion / contraction cylinder (not shown in FIG. 1) is inserted therein. One end of the boom 9 is attached to the swivel base 8 with an appropriate jig such as a bracket, and the work table 3 is attached to the other end. The boom 9 is not only expanded and contracted by the telescopic cylinder, but also the undulation cylinder 10 attached to the swivel base 8 is connected to the peripheral side surface of the boom 9, so that the grounding surface of the work vehicle body 2 and the boom 9 are The angle formed by the axis can be changed. That is, the working table 3 attached to the other end of the boom 9 can be raised and lowered by driving the raising and lowering cylinder 10. The telescopic cylinder and the undulation cylinder 10 are one of members that are mechanically connected to the engine and driven by transmission of power from the engine, like the swivel base 8.

  The work table 3 attached to the other end of the boom 9 is a member having a cage shape, a bottomed rectangular tube shape, or a bottomed cylindrical shape so that an operator using the work vehicle 1 can get on the work table 3. The work table 3 is attached to the tip of the boom 9 in a state where it is kept horizontal. The work table 3 is mechanically connected to the engine via the swivel base 8, the telescopic cylinder, and the undulation cylinder 10, and is driven by transmission of power from the engine. The work table 3 is an example of a work unit in the work time notification device for a work vehicle according to the present invention.

  The mechanism for receiving the power from the engine in the swivel base 8, the telescopic cylinder and the undulation cylinder 10 is not particularly limited, and examples thereof include a hydraulic mechanism, a water pressure mechanism, a gas pressure mechanism, and the like. A hydraulic mechanism is often used.

  The upper controller 4 is an operation panel attached to the work table 3. The upper controller 4 can operate driving and stopping of the engine and driving and stopping of the work table 3, and inputs operations by various push buttons, switches, operation levers, a touch panel, a worker's voice, or the like. . The upper controller 4 is an example of a control unit in the work time notification device for a work vehicle according to the present invention. The engine drive and stop operations using the upper controller 4 and the work table 3 drive and stop operations will be described in detail with reference to FIG.

  The upper controller 4 is provided with a speaker 5. The speaker 5 can perform notification based on operation-related information of the upper controller 4 or the lower controller, that is, information related to an operation input in the upper controller 4 or the lower controller. The sound emitted from the speaker 5 is not particularly limited as long as the operator can recognize that the notification has been made. For example, a horn, an alarm, various electronic sounds or sounds can be employed. The speaker 5 is an example of a notification unit in the work time notification device for a work vehicle according to the present invention. The operation related information will be described later together with a description regarding control of the work vehicle 1 performed with reference to FIG.

  If the speaker 5 is an aerial work vehicle that often performs work outdoors, it is preferable that the speaker 5 provides a notification with a sound that is easy for the operator to recognize. This is because the speaker 5 or the upper controller 4 provided with the speaker 5 is operated by the operator until the notification by the sound of the speaker 5 is made after inputting the driving operation of the engine or the appropriate operation of the work table 3. This is because there is no need to look straight ahead. Until the notification by the sound of the speaker 5, the worker may be performing other work while watching other than the speaker 5 or the upper controller 4.

  However, the notifying unit in the work time notifying device for work vehicles according to the present invention appeals not only to sound notification but also to visual notification such as light emission or appropriate display on the operation panel, and tactile sense such as vibration of the operation lever. Information may also be used.

  Next, control of the work vehicle 1 will be described with reference to FIG.

  As shown in FIG. 2, the work vehicle 1 includes an upper controller 4 and a lower controller 11 as an example of a control unit in the work time notification device for a work vehicle according to the present invention. In the present embodiment, the upper controller 4 and the lower controller 11 are electrically connected, and the lower controller 11 and the hoisting operation valve 12, the telescopic operation valve 13, the turning operation valve 14, and the engine 15 are electrically connected. It is connected. Further, the upper controller 4 can output a signal so as to ring with respect to the speaker 5.

  In the work time notification device for a work vehicle according to the present invention, only one of the upper controller and the lower controller may be provided as long as the work is not hindered. In that case, the hoisting operation valve, the telescopic operation valve, the turning operation valve, and the engine need only be electrically connected to the controller that has been provided.

  As shown in FIG. 2, the hoisting operation valve 12 and the hoisting cylinder 10 are mechanically connected, the telescopic operation valve 13 and the telescopic cylinder 16 are mechanically connected, and the swing operation valve 14 and the swing motor 17 are connected. Mechanically connected.

  Further, the upper controller 4 is provided with a hoisting operation lever 18U, a telescopic operation lever 19U, a turning operation lever 20U, an engine drive / stop switch 21U, and a foot switch 22. Further, the lower controller 11 is also provided with a raising / lowering operation lever 18D, an expansion / contraction operation lever 19D, a turning operation lever 20D, and an engine drive / stop switch 21D, as well as the lower controller 11 and the boom storage. A detector 24 is provided.

  Since the upper controller 4 and the lower controller 11 are electrically connected, the operation signal input by the upper controller 4 can be transmitted to various operation valves via the lower controller 11. Furthermore, a signal for causing the speaker 5 to ring from the lower controller 11 to the upper controller 4 can be output based on information related to the operation input by the operator, that is, operation-related information.

  In the embodiment shown in FIG. 2, the speaker 5 is electrically connected only to the upper controller 4. However, in the work vehicle time notification device for a work vehicle according to the present invention, both the upper controller 4 and the lower controller 11 are connected. When a notification unit such as a speaker 5 may be connected, and the upper controller 4 is not provided in the work unit such as the work table 3 that is a work member for high places, and various operations are performed only by the lower controller. The notification unit may be connected only to the lower controller.

  If the engine 15 is stopped, the engine 15 is driven by driving the engine drive / stop switch 21U or 21D. Conversely, if the engine 15 is being driven, the engine 15 is stopped by stopping the engine drive / stop switch 21U or 21D.

  Further, when the engine 15 is being driven, by operating the hoisting operation lever 18U or 18D, the hoisting operation valve 12 is opened and the hydraulic mechanism is actuated, and the hoisting cylinder 10 is driven. Similarly, when the engine 15 is being driven, by operating the expansion / contraction operation lever 19U or 19D, the expansion / contraction operation valve 13 is opened and the hydraulic mechanism is activated, and the expansion / contraction cylinder 16 is driven. Further, if the engine 15 is being driven, by operating the turning operation lever 20U or 20D, the turning operation valve 14 is opened and the hydraulic mechanism is operated, and the turning motor 17 is driven.

  Although not shown in FIG. 1, the foot switch 22 is provided in the vicinity of a region where the operator stands on the work table 3 and realizes an ON state by pressing the operator by stepping on the foot, etc. It is a switch that can be turned off by releasing the pressing state. When the foot switch 22 is turned on, the operation of the upper controller 4 on the work table 3 is made effective, and when the foot switch 22 is turned off, the operation of the upper controller 4 is made invalid. It is a member that improves the safety of the vehicle 1. In the work vehicle time notification device for a work vehicle according to the present invention, a deadman switch, an enable switch, or the like can be employed as a member that switches between valid and invalid operations other than the foot switch 22.

  The lower priority switch 23 is a member having the same function as the foot switch 22 and can switch between valid and invalid of various operations input in the lower controller 11 in which the lower priority switch 23 is provided. Further, the lower priority switch 23 has a function of invalidating the input of various operations in the upper controller 4 when in the on state and validating the input of various operations in the upper controller 4 when in the off state. You can also. For example, before the operator gets on the work table 3, the function of switching the input and output of various operations in the upper controller 4 is a lower controller using the hoisting operation and turning operation of the work table 3 and the expansion and contraction operation of the boom 9 as a test operation. 11 is useful when operating.

  The boom storage detector 24 is a member that detects whether or not the boom 9 is stored and the work table 3 is positioned on the roof top of the driver's seat as shown in FIG. For example, it is a member for preventing the boom 9 from being left in the state in which the boom 9 is extended or in the state in which the work table 3 is being undulated and turned.

  Since the foot switch 22, the lower priority switch 23, and the boom retract detector 24 are safety devices, they are not essential members in the work time notification device for a work vehicle according to the present invention. It is preferable to provide the member from the viewpoint of improving the property.

  As shown in FIG. 2, when a driving operation is input from the engine driving / stop switch 21 </ b> U or 21 </ b> D while the engine 15 is stopped, an engine driving signal is output from the lower controller 11 to the engine 15. ing. In addition, when the engine 15 is being driven, when a stop operation is input through the engine drive / stop switch 21U or 21D, an engine stop signal is output from the lower controller 11 to the engine 15. Further, although not shown in FIG. 2, the lower controller 11 has an appropriate detector that can detect an engine rotation signal indicating that the engine 15 is rotating.

  The matter notified by the speaker 5 is the timing at which the work table 3 can be driven. The timing at which the work table 3 can be driven is, for example, when the engine 15 is driven and the operation input of the upper controller 4 or the lower controller 11 becomes valid, or is already appropriate without waiting for the engine 15 to be driven. When an operation is input, it is possible to mention when the input operation is executed. As the appropriate operation, for example, an operation related to the work table 3 to be driven by transmission of power from the engine 15 can be cited, and specifically, a turning operation of the turntable 8 via the turn motor 17. The boom 9 can be extended and retracted via the telescopic cylinder 16, and the hoisting operation of the work table 3 can be performed via the hoisting cylinder 10.

  As described above, in order for the speaker 5 to notify the timing when the work table 3 can be driven, a ringing signal is output to the speaker 5 based on the behavior of each member of the work vehicle 1 and various signals to be processed. It ’s fine.

  For example, when a driving operation of the engine 15 by the engine drive / stop switch 21U or 21D is input, an engine rotation signal is input to the lower controller 11 as a starting point of the sound signal output to the speaker 5. When the engine 15 reaches a rotational speed at which the work table 3 can be driven, that is, when the rotational speed at which the work table 3 can be turned and undulated and the boom 9 can be expanded or contracted, or when the power of the engine 15 is When the power is transmitted to the work table 3, that is, when the power of the engine 15 is transmitted to the hoisting operation valve 12, the telescopic operation valve 13 or the turning operation valve 14 via a hydraulic mechanism, and the like.

  The number of revolutions of the engine 15 that drives the work table 3 may vary depending on the type of the work vehicle and the type of the work table 3, so that the number of revolutions that the work table 3 actually drives in advance or the number of revolutions just before the actual driving, etc. It is good to set it as the number of rotations at which the work table 3 can be driven. As a member for detecting that the engine 15 has reached a predetermined number of revolutions according to the number of revolutions of the engine 15, for example, a sensor or the like interlocked with a revolution number meter normally provided in the work vehicle can be used.

  As a member that detects that the power of the engine 15 has been transmitted to the work table 3, for example, a sensor that detects the hydraulic pressure in the hydraulic mechanism can be used. Of course, if a water pressure mechanism or a gas pressure mechanism or the like is employed as a drive mechanism for the hoisting cylinder 10, the telescopic cylinder 16 and the swing motor 17, a sensor or the like for detecting the water pressure or gas pressure in each mechanism may be used.

  Here, as the operation related information, for example, information related to the driving operation of the engine 15 input by the upper controller 4 or the lower controller 11 and input by the upper controller 4 or the lower controller 11 without waiting for the driving of the engine 15. The information regarding the driving operation of the work table 3 can be given. That is, the operation related information is information related to an operation for driving the engine 15 or the work table 3.

  In the embodiment shown in FIGS. 1 and 2, the following three types can be given as the operation related information. Specifically, (1) when the driving operation of the engine 15 is performed and the driving operation of the work table 3 is not performed, (2) the driving operation of the engine 15 is performed and the work table is not waited for the engine 15 to be driven. And (3) a case where the foot switch 22 or the lower priority switch 23 is turned on, the engine 15 is not driven, and the work table 3 is driven. it can.

  The work vehicle 1 shown in FIGS. 1 and 2 is a foot switch 22 or a lower priority switch that is a safety device even if the engine drive / stop switch 21U or 21D does not drive the engine 15 while the engine 15 is stopped. By inputting an appropriate operation on various operation levers while turning on the engine 23, the engine 15 is automatically driven so that the power of the engine 15 is transmitted to various operation valves according to the input operation. Is set. However, in the work time notification device for a work vehicle according to the present invention, an appropriate operation input may be set to be invalid unless the engine is driven by the operation of the engine drive / stop switch. In this case, the operation related information is (1) of the above three types.

  Each usage method of the work vehicle 1 from the state in which the engine is stopped and its action when the operation-related information obtained is the above (1) to (3) are shown below.

(1) When the driving operation of the engine 15 is performed and the driving operation of the work table 3 is not performed The driving operation of the engine 15 is input from the lower controller 11 to the engine 15 by the engine driving / stop switch 21U or 21D. In response to this, an engine drive signal is output. Since the drive operation of the work table 3, that is, the operation input by various operation levers is not performed, the various operation valves are not driven.

  Therefore, when the operation-related information is (1), when the drive operation of the engine 15 is input, or when the engine rotation signal is input to the lower controller 11 by actually driving the engine 15. As a starting point, the upper controller 4 may output a ringing signal to the speaker 5. As a result, the speaker 5 notifies the operator of the timing at which the work table 3 can be driven, that is, the timing at which the power of the engine 15 can be transmitted to various operation valves and the preparation for driving the work table 3 is completed. Can be notified.

  When the output of the ringing signal starts from the time when the driving operation of the engine 15 is input, the time from when the driving operation of the engine 15 is input until the work table 3 can actually be driven is Since it may vary depending on the type of engine provided in the vehicle 1, an appropriate time may be selected as the setting of the upper controller 4 and the lower controller 11.

  As a result, since the operator knows the timing when the preparation for driving the work table 3 is completed after inputting the driving operation of the engine 15, in other words, the timing when the driving operation of the work table 3 may be input. It is possible to reduce the uncomfortable feeling caused by the time difference from the input of the driving operation of the engine 15 until the input of the next operation becomes possible.

(2) When driving the engine 15 and driving the work table 3 without waiting for driving of the engine 15 By inputting the driving operation of the engine 15 at the engine driving / stop switch 21U or 21D, An engine drive signal is output from the controller 11 to the engine 15. Further, since the driving operation of the work table 3, that is, the operation input by various operation levers is performed without waiting for the engine 15 to be driven, signals for driving various operation valves according to the input operation are sent from the lower controller 11. Is output.

  Therefore, when the operation-related information is (2), when the driving operation of the engine 15 is input, when the engine rotation signal is input to the lower controller 11, the rotation at which the engine 15 can drive the work table 3 is performed. The upper controller 4 may output a ringing signal to the speaker 5 when the number reaches the number or when the power of the engine 15 is transmitted to the work table 3 in accordance with the input operation. As a result, the speaker 5 can be driven at the timing when the work table 3 can be driven, that is, when the power of the engine 15 can be transmitted to various operation valves and the preparation of driving of the work table 3 is completed, or the power of the engine 15 Can be notified to the operator of the timing at which the work table 3 starts to be actually transmitted to the various operation valves.

  As a result, since the operator knows the timing at which the work table 3 actually starts driving after inputting the drive operation of the engine 15 and the drive operation of the work table 3, the operation is performed from the input of the drive operation of the engine 15 and the work table 3. It is possible to reduce a sense of incongruity caused by a time difference until the process is executed.

(3) When the driving operation of the work table 3 is not performed and the operation operation of the work table 3 is performed. Since the operation operation of the work table 3, that is, only the operation input by various operation levers is performed, An engine drive signal is output from the controller 11 to the engine 15, and a signal for driving various operation valves corresponding to the input operation is output from the lower controller 11.

  Therefore, when the operation related information is (3), when the engine rotation signal is input to the lower controller 11, when the engine 15 reaches the number of rotations that can drive the work table 3, or has been input The upper controller 4 may output a ringing signal to the speaker 5 starting from the time when the power of the engine 15 is transmitted to the work table 3 according to the operation. As a result, the speaker 5 can be driven at the timing when the work table 3 can be driven, that is, when the power of the engine 15 can be transmitted to various operation valves and the preparation of driving of the work table 3 is completed, or the power of the engine 15 Can be notified to the operator of the timing at which the work table 3 starts to be actually transmitted to the various operation valves.

  As a result, since the operator knows the timing at which the work table 3 starts to actually drive after inputting the drive operation of the work table 3, it is caused by the time difference from the input of the drive operation of the work table 3 until the operation is executed. It is possible to reduce a sense of discomfort.

  In the control unit of the upper controller 4 and / or the lower controller 11, that is, the work time notification device for the work vehicle according to the present invention, even if the operation related information is any of (1) to (3) described above, the notification unit If the starting point for performing the notification is determined as one when the engine rotation signal is input to the control unit common to the above (1) to (3), the work vehicle can be easily controlled.

  It should be noted that the control unit determines whether the operation-related information is any of (1) to (3) described above, and the starting point for the notification by the notification unit is determined based on the input of the drive operation of the engine or the working unit. It may be set so that notification is performed after appropriately selecting from the viewpoint of reducing the uncomfortable feeling caused by the time difference until execution.

  Work vehicles having an idling stop function, which has been increasing in recent years, often employ a structure that suppresses gasoline consumption when the engine is restarted. The time required until the part can be driven is increasing. That is, the time difference from when the engine is stopped by the idling stop function until the input of the predetermined operation becomes valid after the engine is operated on the work table is increasing.

  On the other hand, the work time notification device for a work vehicle according to the present invention performs the predetermined operation even when the time difference until the input of the predetermined operation becomes valid after the engine driving operation is performed. Since the operator can be notified of the timing at which the input becomes effective and the working unit can be driven, the sense of incongruity caused by the time difference does not increase.

  FIG. 1 shows an aerial work platform provided with a work platform on which an operator rides. However, the work vehicle time notification device for a work vehicle according to the present invention does not include a work platform, but transmits power from the engine. It can also be applied to various work vehicles equipped with members driven by, for example, a work vehicle such as a truck crane or a rough terrain crane having only a lower controller, a concrete pump car having only a lower controller, a wired or wireless remote The present invention may also be applied to a work vehicle that includes a controller and can operate a boom or the like from a position away from the vehicle body.

  As mentioned above, although embodiment which applied the invention made | formed by this inventor was described, this invention is not limited by the description and drawing which make a part of indication of this invention by this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

1: work vehicle, 2: work vehicle main body, 3: work table, 4: upper controller, 5: speaker, 6: outrigger, 7: jack, 8: swivel, 9: boom, 10: hoisting cylinder, 11: lower part Controller: 12: Hoisting operation valve, 13: Telescopic operation valve, 14: Swing operation valve, 15: Engine, 16: Telescopic cylinder, 17: Swing motor, 18U and 18D: Hoisting operation lever, 19U and 19D: Telescopic operation lever, 20U and 20D: Turn control lever, 21U and 21D: Engine drive / stop switch, 22: Foot switch, 23: Lower priority switch, 24: Boom storage detector

Claims (5)

A work vehicle body having an engine;
A working unit connected to the engine and driven by transmission of power from the engine;
A controller for operating and stopping the engine, and driving and stopping the working unit;
A work time notifying device for a work vehicle, comprising: a notifying unit for notifying a timing at which the work unit can be driven based on operation-related information of the control unit. The work timing notification device for a work vehicle according to claim 1, wherein the operation-related information is information related to a drive operation of the engine or a drive operation of the work unit that is input by the control unit. The notification unit
When the driving operation of the engine is input by the control unit,
When an engine rotation signal indicating that the engine is rotating is input to the control unit,
When the engine reaches a rotational speed capable of driving the working unit, or
The work time notification device for a work vehicle according to claim 1 or 2, wherein a notification is made when the power of the engine is transmitted to the work unit. The work time notification device for a work vehicle according to any one of claims 1 to 3, wherein the notification unit performs notification by sound. The work timing notification device for a work vehicle according to any one of claims 1 to 4, wherein the engine has an idling stop function.

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