JP7027261B2 - Working machine - Google Patents

Description

The present invention relates to a working machine such as a tractor.

Conventionally, the work machine of Patent Document 1 is known as a work machine provided with a headlight and a work light. In the work machine of Patent Document 1, the starter switch is switched from ON to OFF so that the worker can illuminate the surroundings even if he / she does not have a footlight when getting off the work machine in the dark such as at night. After that, keep the work light on until the specified time elapses.

Japanese Unexamined Patent Publication No. 2000-71870

The conventional work machine is very convenient because it has an automatic turn-off function in which the work light is turned off after a predetermined time after the starter switch is switched from ON to OFF. However, some work machines are not equipped with the automatic turn-off function, and it cannot be confirmed whether or not the automatic turn-off function is installed. Therefore, the worker must confirm whether or not the work light is turned off by the automatic turn-off function every time the vehicle gets off. In addition, since the worker cannot know whether or not the work machine is equipped with the automatic turn-off function, if the work light or the like does not turn off after getting off, it may be difficult to determine whether or not the work light has been forgotten to be turned off. In this case, the worker may return to the work machine to check the state of the switch.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a working machine that allows a worker to smoothly leave the working machine.

The technical means of the present invention for solving this technical problem is characterized by the following points.
The work equipment includes a prime mover, a lighting light, a changeover switch capable of switching between turning on and off the lighting light, and when the prime mover is stopped while the changeover switch is instructed to turn on the light. A lighting control device for turning off the lighting after a predetermined time and a notification device for notifying that the lighting control device is operating are provided , and the notification device is also used as the lighting. When notifying that the lighting control device is operating, the lighting lamp blinks during the turn-off grace period until the predetermined time elapses .

The working machine includes an ignition switch for starting and stopping the drive of the prime mover, and the lighting control device turns off the lighting lamp after a predetermined time from the time when the drive stop is commanded by the ignition switch.

The working machine is provided with a time change switch for changing the turn-off grace period.
The lighting control device has a pattern changing unit that changes the notification pattern in the notification device.
The work equipment includes a cabin having a door that can be opened and closed, and an open / close detection device that detects the opening or closing of the door. In the lighting control device, the prime mover is stopped and the open / close detection device is the door. When the opening is detected, the lighting is turned off after a predetermined time.

According to the present invention, the worker can smoothly leave the work machine.

It is a figure which shows the cabin, the lighting control device, and the like. It is a figure which shows the operation when the notification device is also used as a lighting lamp. It is a figure which summarized the control flow in a lighting control device. It is a figure which summarized the control flow in the lighting control device when the open / close detection device is used. It is a figure which shows the operation when the work light which is not the object of the extinguishing control is used as a notification device. It is a figure which shows the notification pattern. It is an overall side view of a tractor.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Working machines are agricultural machines such as tractors, combines, and rice transplanters. The tractor 1, which is one of the agricultural machines, will be described as an example.
As shown in FIG. 7, the tractor 1 includes a traveling vehicle (airframe) 3 having a traveling device 7, a prime mover 4, and a transmission 5. The traveling device 7 is a device having front wheels and rear wheels. The traveling device 7 may be a crawler type device. The prime mover 4 is a diesel engine, an electric motor, or the like, and is composed of a diesel engine in this embodiment. The transmission 5 can switch the propulsive force of the traveling device 7 by shifting, and can also switch between forward and reverse of the traveling device 7.

Further, a connecting portion 8 composed of a three-point link mechanism or the like is provided at the rear portion of the machine body 3. The working device 2 is attached to and detached from the connecting portion 8. By connecting the working device 2 to the connecting portion 8, the working device 2 can be towed by the machine body 3. The working device 2 includes a tilling device for cultivating, a fertilizer spraying device for spraying fertilizer, a pesticide spraying device for spraying pesticides, a harvesting device for harvesting, a cutting device for cutting grass and the like, and a spreading device for spreading grass and the like. It is a grass collecting device for collecting grass and the like, a molding device for molding grass and the like, and the like. Note that FIG. 7 shows an example in which a tilling device is attached as the working device 2.

Further, the tractor 1 includes a driver's seat 10 provided on the machine body 3 and a control device 11. The driver's seat 10 and the control device 11 are arranged in the cabin 12 provided in the aircraft 3. The control device 11 is composed of, for example, steering, and the traveling direction of the tractor 1 can be changed by manipulating the control device 11.
FIG. 1 is a diagram showing a cabin 12 and a lighting control device 140. In FIG. 1, the arrow A1 indicates the front, the arrow A2 indicates the rear, the arrow B1 indicates the left side, and the arrow B2 indicates the right side.

As shown in FIG. 1, the cabin 12 includes a roof 50, a plurality of front columns 51, a plurality of intermediate columns 52, a plurality of rear columns 53, a connecting frame 54, a front panel 55, and a rear panel 56. It has a door panel 57. As shown in FIG. 1, the roof 50 is a member constituting the ceiling of the cabin 12, and is supported by a plurality of front columns 51, a plurality of intermediate columns 52, a plurality of rear columns 53, and a connecting frame 54.

The plurality of front columns 51 include a first front column 511 and a second front column 512. The first front strut 511 and the second front strut 512 extend upward. The first front strut 511 and the second front strut 512 are arranged apart from each other in the width direction of the machine body 3, the first front strut 511 is located at the left front end, and the second front strut 512 is the right front end. Is located in.
The plurality of intermediate columns 52 are arranged between the plurality of front columns 51 and the plurality of rear columns 53, and include a first intermediate column 521 and a second intermediate column 522. The first intermediate strut 521 and the second intermediate strut 522 extend upward. The first intermediate strut 521 and the second intermediate strut 522 are arranged apart from each other in the width direction of the machine body 3, the first intermediate strut 521 is located in the left middle portion, and the second intermediate strut 522 is in the right middle. It is located in the department.

The plurality of rear columns 53 are located behind the plurality of intermediate columns 52 and include a first rear column 531 and a second rear column 532. The first rear strut 531 and the second rear strut 532 extend upward. The first rear strut 531 and the second rear strut 532 are arranged apart from each other in the width direction of the machine body 3, the first rear strut 531 is located at the left rear portion, and the second rear strut 532 is located at the right rear portion. positioned.

The connecting frame 54 is a frame that connects the front strut 51, the intermediate strut 52, and the rear strut 53, and has an upper connecting frame 54a and a lower connecting frame 54b. The upper connecting frame 54a connects the upper ends of the first front strut 511, the second front strut 512, the first intermediate strut 521, the second intermediate strut 522, the first rear strut 531 and the second rear strut 532, respectively. There is. The lower connecting frame 54b connects the lower ends of the first front strut 511, the second front strut 512, the first intermediate strut 521, the second intermediate strut 522, the first rear strut 531 and the second rear strut 532, respectively. There is.

The front panel 55 is fixed to a plurality of front columns 51 (first front column 511, second front column 512), a connecting frame 54, and a roof 50. The rear panel 56 is surrounded by a plurality of rear columns 53 (first rear column 531 and second rear column 532), a connecting frame 54, and a roof 50.
By the way, the part surrounded by the first front support column 511, the first intermediate support column 521, and the connecting frame 54 (upper connecting frame 54a, lower connecting frame 54b) forms an entrance / exit 63 for the operator to get on and off. The door panel 57 is a member that closes the entrance / exit 63 so as to be openable / closable. The door panel 57 is supported by a hinge 58 attached to the rear side of the entrance 63 (the front side of the intermediate support 52). The hinge 58 supports the door panel 57 so as to be openable and closable.

The boarding / alighting step 41 is provided on the lower side of the cabin 12, that is, the portion corresponding to the boarding / alighting port 63. The boarding / alighting step 41 has a front support portion 41a, a rear support portion 41b, and a step portion 41c. The front support portion 41a is attached to the lower part of the airframe 3, that is, the cabin 12. The rear support portion 41b is arranged behind the front support portion 41a and is attached to the airframe 3 (cabin 12). The step portion 41c is fixed to the front support portion 41a and the rear support portion 41b. Therefore, for example, the worker can get on the cabin 12 from the field side by putting his foot on the step portion 41c and entering the cabin 12, and puts his foot on the step portion 41c from the inside of the cabin 12 to the outside. By leaving, you can get off to the field side.

The tractor 1 is provided with an illumination lamp 15. The illumination lamp 15 is a lamp used for getting on and off, and is at least an on / off light (foot light) that is turned on or off. The lighting 15 is attached to the lower part of the cabin 12 in the vicinity of the boarding / alighting step 41. Specifically, the illumination lamp 15 is arranged between the front support portion 41a and the rear support portion 41b of the boarding / alighting step 41 in a side view, and the direction of the light source such as a lamp is directed to the step portion 41c. The illumination lamp 15 is an example and is not limited to the above-described embodiment.

Further, the tractor 1 includes a changeover switch 122 capable of a changeover operation for switching on or off of the illumination lamp 15. The changeover switch 122 is a hardware switch that can be switched ON / OFF by a pressing operation. When the changeover switch 122 is ON, it commands the lighting 15 to turn on, and when it is OFF, it commands the lighting 15 to turn off.

As shown in FIG. 1, a changeover switch 122 and a lighting 15 are connected to the lighting control device 140. The lighting control device 140 turns on the lighting 15 when the lighting command (lighting signal) of the changeover switch 122 is acquired, and lights up when the lighting command (lighting signal) of the changeover switch 122 is acquired. Turn off the light 15.
Further, the lighting control device 140 turns off the lighting 15 after a predetermined time when the driving of the prime mover 4 is stopped in the state where the lighting is commanded by the changeover switch 122 (the state where the lighting signal is acquired). Take control. Specifically, the ignition switch 45 is connected to the lighting control device 140. The ignition switch 45 is a switch that can be switched ON / OFF. When the ignition switch 45 is ON, the ignition switch 45 commands the start of driving (driving start) of the prime mover 4 to the motor 4 or the control device controlling the prime mover 4, and when it is OFF, the drive of the prime mover 4 is driven. Is instructed to stop (drive stop) of the prime mover 4 or the control device that controls the prime mover 4. Therefore, the lighting control device 140 executes the extinguishing control when the changeover switch 122 is ON and the ignition 45 is OFF. By executing the lighting control device 140, the lighting control device 140 can turn off the lighting light 15 when a predetermined time has elapsed from the drive stop of the prime mover 4.

By the way, in the tractor 1, the lighting control device 140 can be turned off, that is, the lighting control device 140 can be turned off after a predetermined time even if the changeover switch 122 is turned on. can. The tractor 1 is provided with a notification device for notifying an operator or the like that the lighting control device 140 is operating. The notification device is a lamp (light source) for generating light and a speaker (sound source) for generating sound, which are mounted on the tractor 1. In this embodiment, the notification device is also used as the lighting 15, and when the lighting 15 notifies that the lighting control device 140 is operating, a predetermined predetermined time elapses. Blinks during the grace period T1. The extinguishing grace period T1 is a period from when the motor 4 is stopped driving to when the motor 4 is extinguished, and a predetermined time, that is, the length of the extinguishing grace period is stored in the lighting control device 140.

FIG. 2 is a diagram showing an operation when the notification device is also used as the illumination lamp 15. As shown in FIG. 2, when the changeover switch 122 is turned on at the time point P1, the illumination lamp 15 is turned on. Further, at the time point P2, when the ignition switch (IG) 45 is turned off and the driving of the prime mover 4 is stopped, the lighting control device 140 starts the extinguishing control. The lighting control device 140 maintains the lighting of the lighting 15 when the turning-off grace period T1 is set in the turning-off control. Further, the lighting control device 140 blinks the lighting light 15 in the extinguishing grace period T1. That is, the lighting control device 140 sets the blinking period T2 in which the lighting 15 is blinking in the extinguishing grace period T1. By blinking the illumination lamp 15 during the blinking period T2, the illumination control device 140 can notify the operator that the extinguishing control of the illumination control device 140 is being performed. The lighting control device 140 turns off the lighting 15 when the turn-off grace period T1 elapses and reaches P3.

FIG. 3 is a diagram summarizing the control flow in the lighting control device 140. The lighting, extinguishing, blinking, and the like of the illuminating lamp 15 will be described in detail with reference to FIG.
As shown in FIG. 3, the lighting control device 140 determines whether or not the ignition switch (IG) 45 is ON (S1). When the ignition switch 45 is ON (S1, Yes), the lighting control device 140 determines whether or not the changeover switch 122 is ON (S2). The lighting control device 140 turns on the lighting 15 (S3) when the changeover switch 122 is ON (S2, Yes). When the changeover switch 122 is not ON (S2, No), the lighting control device 140 turns off the lighting 15 (S4).

When the ignition switch 45 is not ON (S1, No), the lighting control device 140 has a lighting control device 140.
It is determined whether or not the changeover switch 122 is ON (S5). When the changeover switch 122 is ON (S5, Yes), the lighting control device 140 sets the turn-off grace period corresponding to the turn-off grace period T1 (S6), and starts the countdown or the count-up (S7). The lighting control device 140 determines whether or not the elapsed time from turning off the changeover switch 122 has reached the turn-off grace time by countdown or countup (S8). When the lighting control device 140 has reached the extinguishing grace period (S8, Yes when the current time has passed the extinguishing grace period T1,), the lighting control device 140 turns off the lighting 15 (S4). When the lighting control device 140 has not reached the extinguishing grace time (S8, No), the lighting control device 140 periodically blinks the lighting light 15 to notify that the lighting control device 140 is operating (S9). Further, after blinking the illuminating lamp 15 for a predetermined time, the illuminating lamp 15 is turned on (S10).

In the above-described embodiment, the predetermined time (the length of the extinguishing grace period T1) is preset in the lighting control device 140, but may be arbitrarily changed. The lighting control device 140 is connected to the time change switch 141. The time change switch 141 is a switch that changes a predetermined time (the length of the extinguishing grace period T1), and is, for example, a switch that can be pressed. To change the length of the turn-off grace period T1, press and hold the time change switch 141 to switch to the change mode of the turn-off grace period T1. After setting the change mode, the length of the extinguishing grace period T1 can be changed by the number of times the time change switch 141 is pressed. For example, the length of the extinguishing grace period T1 can be changed by the length of the extinguishing grace period T1 = the number of times of pressing × the time per pressing. The change in the length of the extinguishing grace period T1 by the time change switch 141 is an example, and is not limited to the above-described embodiment.

Further, in the above-described embodiment, the ignition switch 45 is started from OFF to execute the extinguishing control, but in addition to this, the extinguishing control may be executed starting from the closing of the door panel (door) 57. .. In this case, as shown in FIG. 1, an open / close detection device 46 for detecting the opening or closing of the door panel 57 is connected to the lighting control device 140. The open / close detection device 46 is a sensor that detects opening or closing by detecting, for example, that the door panel 57 is close to or separated from a frame such as a support column of the cabin 12. The open / close detection device 46 may be a sensor that detects the opening or closing of the door panel 57 by the rotation of the hinge 58, or may be another sensor without limitation.

FIG. 4 is a diagram summarizing the control flow in the lighting control device 140 when the open / close detection device 46 is used. In FIG. 4, S1 to S5 and S6 to S9 are the same as those in FIG. 3, and thus the description thereof will be omitted.
As shown in FIG. 4, when the changeover switch 122 is ON (S5, Yes), the lighting control device 140 determines whether or not the door panel 57 is opened (S20). When the opening / closing detection device 46 detects that the door panel 57 has been opened (S20, Yes), the lighting control device 140 sets a turn-off grace period corresponding to the turn-off grace period T1 (S6). That is, when the prime mover 4 is stopped and the open / close detection device 46 detects that the door panel 57 is closed, the lighting control device 140 turns off the lighting 15 after a predetermined time.

As shown in FIG. 1, the lighting control device 140 may have a pattern changing unit 142 that changes the notification pattern in the notification device, and a pattern change operation member 143 that commands the pattern change. The pattern changing unit 142 is composed of an electric / electronic component (electric circuit) provided in the lighting control device 140, a program provided in a CPU, and the like. The pattern change operation member 143 is a slide switch, a push switch, a rotary switch, a lever, or the like. By operating the pattern change operation member 143, various notification patterns can be commanded to the lighting control device 140.

For example, as shown in PA1 and PA2 of FIG. 6, the pattern changing unit 142 fixes and blinks the notification interval (notification interval from the previous notification to the next notification) T3 at a preset time (default time). The notification pattern is changed by increasing or decreasing the notification time (notification length) in the period T2 or the like from a preset time (default time).
Further, as shown in PA3 and PA4 of FIG. 6, the pattern changing unit 142 changes the notification pattern by fixing the notification time (blinking period T2) and increasing / decreasing the notification interval T3 from the default time.

Further, as shown in PA5 of FIG. 6, the notification pattern is changed by increasing or decreasing both the notification time (blinking period T2) and the notification interval T3 from the default time.
The notification pattern changed by the pattern changing unit 142 can be stored in the lighting control device 140, and can be called up by operating the pattern changing operation member 143 or the like. In the above-described embodiment, the lighting control device 140 is instructed to change the notification pattern by operating the pattern change operation member 143. Instead, a display device such as a touch panel is provided on the tractor 1. The lighting control device 140 may be instructed to change the notification pattern by operating the touch panel on the display device.

In the work equipment 1, the prime mover 4, the illumination light 15, the changeover switch 122 capable of switching the on / off of the illumination light 15, and the prime mover 4 stopped in a state in which lighting is instructed by the changeover switch 122. In this case, it includes a lighting control device 140 that turns off the lighting 15 after a predetermined time, and a notification device that notifies that the lighting control device 140 is operating. According to this, for example, when disembarking from the work machine 1 after stopping the prime mover 4, the operator informs by the notification device that the lighting control device 140 is operating, so that the worker turns on the lighting 15 when disembarking. Even if the lighting control device 140 is used, it can be grasped that the lighting lamp 15 is turned off after a predetermined time. That is, the worker can smoothly leave the work machine 1 after stopping the prime mover 4.

The notification device is also used as the lighting light 15, and when notifying that the lighting control device 140 is operating, the lighting light 15 blinks during the extinguishing grace period T1 until a predetermined time elapses. do. According to this, since the lighting 15 that is turned off after a predetermined time is blinked by the lighting control device 140, the operator can grasp that the lighting 15 is turned off after a predetermined time. In addition, the number of parts can be reduced by using the notification device for both purposes.

The work machine 1 includes an ignition switch 45 for starting and stopping the drive of the prime mover 4, and the lighting control device 140 turns off the lighting 15 after a predetermined time from the time when the ignition switch 45 commands the drive stop. According to this, since the worker or the like manually stops driving the prime mover 4 by the ignition switch 45, the worker's intention to get off the work machine 1 can be confirmed by operating the ignition switch 45.

The work machine 1 includes a time change switch 141 for changing the turn-off grace period T1. According to this, the time until the illumination lamp 15 is turned off can be arbitrarily changed.
The lighting control device 140 has a pattern changing unit 142 that changes the notification pattern in the notification device. According to this, it is possible to change the notification method according to the work mode in the work machine, the operator to operate, and the like.

The work machine 1 includes a cabin 12 having a door 57 that can be opened and closed, and an open / close detection device 46 that detects the opening or closing of the door 57. When the door 57 is detected to be open, the lighting 15 is turned off after a predetermined time. According to this, it is possible to prevent the operator from turning off the lighting 15 before exiting the door 57.

In the above-described embodiment, the boarding / alighting light (foot light) to be turned on at the time of getting on / off is described as the lighting light 15 (lighting light 15 to be turned off after a predetermined time after the prime mover 4 is stopped driving) which is the target of the extinguishing control. The lighting 15 which is the target of the extinguishing control may be a work light used at the time of work. The work light is provided, for example, on the front surface of the bonnet of the tractor 1, the cabin 12, or the like. Further, the notification device is also used as the lighting 15 which is the target of the extinguishing control, but instead of this, another light source (lamp) which is not the target of the extinguishing control may be used as the notification device. .. For example, among the lighting lights 15 provided on the tractor 1, the boarding / alighting light (foot light) may be targeted for extinguishing control, and a work light different from the foot light may be applied as a notification device.

FIG. 5 is a diagram showing an operation when the foot light 15A is used as the light to be turned off and the work light 15B is used as the notification device among the lighting lights 15. In this case, as shown in FIG. 1, the work light 15B is connected to the lighting control device 140. The changeover switch 122 will be described as a switch for lighting the foot light 15A.
As shown in FIG. 5, when the changeover switch 122 is turned on at the time point P1, the foot light 15A is turned on. Further, at the time point P2, when the ignition switch 45 is turned off and the driving of the prime mover 4 is stopped, the lighting control device 140 starts the extinguishing control. The lighting control device 140 maintains the lighting of the foot lamp 15A when the extinguishing grace period T1 is set in the extinguishing control. The lighting control device 140 starts blinking the work light 15B different from the foot light 15A at time points P4, P5, etc. in the extinguishing grace period T1. In the lighting control device 140, the work light is turned off in the turn-off grace period T1 during the period other than the blinking period T2. Therefore, by blinking the work light 15B different from the foot light 15A, it is possible to notify the operator that the lighting control device 140 is performing the extinguishing control.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown not by the above description but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Tractor 2 Work equipment 3 Traveling vehicle (airframe)
4 Motor 5 Transmission 8 Connection part 10 Driver's seat 11 Steering device 12 Cabin 14 Control device 15 Lighting light (boarding / alighting light)
40 Boarding / alighting step 41a Front support 41b Rear support 41c Step 45 Ignition switch 46 Open / close detection device 50 Roof 51 Front support 511 First front support 512 Second front support 52 Intermediate support 521 First intermediate support 522 Second intermediate support 53 Rear strut 531 1st rear strut 532 2nd rear strut 54 Connecting frame 54a Upper connecting frame 54b Lower connecting frame 55 Front panel 56 Rear panel 57 Door panel 122 Changeover switch 140 Lighting control device 141 Time change switch 142 Pattern change part 143 Pattern change operation member

Claims (5)

The prime mover and
Lighting lights and
A changeover switch capable of switching between turning on and off the lighting, and a changeover switch.
A lighting control device that turns off the lighting after a predetermined time when the prime mover is stopped while the lighting is instructed by the changeover switch.
A notification device that notifies that the lighting control device is operating, and
Equipped with
The notification device is also used as the lighting, and when the notification device notifies that the lighting control device is operating, the lighting device blinks during the extinguishing grace period until the predetermined time elapses. Working machine to do . It is equipped with an ignition switch that starts and stops the drive of the prime mover.
The working machine according to claim 1, wherein the lighting control device turns off the lighting after a predetermined time from the time when the drive stop is commanded by the ignition switch . The working machine according to claim 1 or 2, further comprising a time change switch for changing the extinguishing grace period . The working machine according to any one of claims 1 to 3 , wherein the lighting control device has a pattern changing unit for changing a notification pattern in the notification device . A cabin with a door that can be opened and closed,
An open / close detection device that detects the opening or closing of the door, and
Equipped with
The working machine according to any one of claims 1 to 4 , wherein the lighting control device turns off the lighting after a predetermined time when the prime mover is stopped and the opening / closing detection device detects the opening of the door .

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