JP2000069803A - Self-traveling working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve work efficiency of a self-traveling working machine through the simplification of the manipulation for a directional change and the facilitation of the directional alignment of the machine by constituting the machine in a way that its traveling device keeps changing the travel direction for a certain period of time by operating the operating means to one side and stops the changing direction with a specific operation. SOLUTION: This self-traveling working machine is constituted in a way that the traveling device 1 keeps changing the travel direction in its operating direction for a prescribed time by unidirectionally operating an operating means and the changing of the travel direction is stopped when the operating means is operated to the other direction in the changing. When the operating means, e.g. a power steering lever is laid in one direction, a power transmission to a traveling device in the laid side becomes to be off and a proceeding direction of the machine body can be changed to the direction for a prescribed time. On the other hand, when the power steering lever is laid in the other direction, the proceeding direction of the machine body can be changed to the direction for a prescribed time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled working machine equipped with working means.

[0002]

2. Description of the Related Art Generally, a side clutch is turned on and off to turn the body in a traveling direction to the left or right.

[0003]

However, when the direction of travel is changed, the operator must hold the operating means by hand until the operator changes the position to a desired position, which overlaps other operations. Difficult to operate in case. In order to solve this, even if this operation is canceled after the operation of the operation means, if the configuration is such that the traveling direction of the machine body is changed for a certain period of time, the workability of the operation is greatly improved.

However, if it is desired to cancel the change halfway, the progress of the machine must be temporarily stopped, and the work efficiency cannot be improved.

[0005]

The present invention takes the following technical means in order to solve the above-mentioned problems. That is, the traveling device 1 is operated by operating one of the operating means.
Is configured to change the traveling direction to the operation direction for a predetermined time, and at the time of the change, when the operating means is operated to the other side, the change in the traveling direction is stopped.

[0006]

When the operating means, for example, the power telescopic lever is tilted to one side, the electric power, hydraulic pressure, etc. are used in connection with this.
The power transmission to the running device on the defeated side is turned off, and the traveling direction of the aircraft is changed in that direction for a predetermined time. When the power telescoping is tilted to the opposite side, the traveling direction of the body is changed in the direction for a predetermined time.

When the operating means is operated to the opposite side while the traveling direction of the body is being changed, the power transmission to the traveling device is turned on and the change of the traveling direction of the body is stopped.

[0008]

According to the present invention, the operation of changing the traveling direction of the aircraft is simplified, and when it is determined that the change amount is large, the change operation can be stopped at an arbitrary position, orientation can be easily adjusted, and work efficiency can be reduced. Can be improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
The operation of the vegetable harvester will be described. First, the structure will be described. The vegetable harvesting machine 2 comprises a traveling body 3 having a crawler-type traveling device 1 molded from rubber and arranged at predetermined intervals in the left-right direction with respect to the traveling direction. An operation unit 4 is disposed on one side of the front part of the vehicle, and a collection part having a work floor 5 is formed at the rear part in a rectangular shape in plan view and has a rear end provided at a length located behind the traveling device 1. The transport unit 7 for transporting the harvested material to the collection unit 6 is provided on the side opposite to the operation unit 4.

[0010] The driving unit 4 is, in plan view,
An operation unit 8 provided at a front portion and a left portion in a forward direction and a driver's seat 9 where a driver sits and performs a driving operation are provided.
A power telescopic lever 10 that can be tilted in the front-rear and left-right directions is provided at a front right end portion of the operation unit 8. The traveling body 3 located below the driver's seat 9
An engine switch 11 for switching between starting and stopping of a prime mover (an engine in the embodiment, not shown) mounted on the vehicle is provided.

In the vicinity of the power telescope 10, switches 12, 13, 14, 1 which are turned on and off by a tilting operation are provided.
5 are provided. Then, when the power telescope 10 is tilted forward or backward, the switch 12 or the switch 1 is operated.
3, the lifting / lowering electromagnetic valve 16 is switched, and in connection with this, the lifting / lowering cylinder 17 is expanded and contracted by hydraulic pressure to change the position of the transfer start end of the transfer device 7 in the oblique front-back direction.

Further, by turning the power telescopic lever 10 to the left or right, the switches 14 and 15 are turned on to switch the solenoid valve 18 for turning, and in connection with this, the left or right actuator operated by hydraulic pressure is used. (Not shown)
Operates the left side clutch 19 or the right side clutch 20 for turning on / off the power to a drive shaft (not shown) for driving the traveling device 5 to turn the body left / right. Since the on-off configuration is the same as that of the known one, detailed description is omitted.

A throttle lever-21 is provided at the front of the left panel of the operation unit 8, and a hydrostatic transmission (hereinafter referred to as "HST") for continuously changing the speed of the traveling device 1 is provided behind the throttle lever-21. A main transmission lever 23 for operating the operation of the main transmission 22 is provided. Further, from the driver's seat 9 toward the front, an electric motor, which is a driving source of the transport device 1, is provided on a front operation panel on the left side of the engine switch 11.
A transfer device switch 25 for turning on and off the table 24 is provided.

The transfer device 7 has a transfer start end located in front of the traveling vehicle body 3 and a transfer end located above the transfer start end and on the side of the work floor 26 in plan view. It is arranged substantially parallel to the traveling device 1. The transport device 7 has a frame 27 elongated in the front-rear direction (the traveling direction of the body), a rotating body 28 rotatably provided at both front and rear ends of the frame 27, and a rear body. The electric motor 24, which is a driving source of the transmission mechanism of the rotating body, and the elastic plate 29 which is stretched by being wound around the front-rear rotating body and which is long in the lateral direction on the conveying surface side are provided at predetermined intervals. And an endless conveyance belt (belt in the embodiment) 30 having a wide width in the lateral direction.

The electric motor 24 is configured to be capable of transmitting power to a rotating body 28 which is detachably provided at the transfer end of the frame 27 via a transmission mechanism. Mounted freely. In addition, the endless transport belt 30 has a small hole 34 at the center in the horizontal direction through which water can fall, and is bent in a U or V shape so that both ends in the horizontal direction are located upward at the transport start end. However, the transfer end portion is provided so as to be flatter than the transfer start end portion.

As a result, the water that has fallen into the endless transport zone 30 can be drained, so that contamination due to the adhesion of mud to the harvest can be prevented, and the harvest falls from the endless transport zone 30 at the transport start end. Can be prevented, and the transport from the endless transport zone 30 can be eliminated at the transport end portion. Reference numeral 31 denotes a projection guide provided at the center of the frame 27 with its end approaching the two rotating bodies 28. The projection guide 31 has a guide groove 32 at the center. The provided endless projection (V-shaped belt in the embodiment) 33 is
It is configured to provide guidance.

Therefore, the endless conveyance belt 30 is
When the assembling is performed, the positioning in the lateral direction is easy, so that the assembling is simple, the lateral displacement during the operation is prevented, and the crop can be prevented from falling. Working seat 3
5 and seat support wheels (not shown)
Is provided integrally with the machine frame 36a projecting forward from
In a plan view, it is disposed in a space between the transfer start end of the transfer device 1 and the operation unit 4. The seat 36 is provided so as to be vertically swingable by a parallel link mechanism (not shown) in which a base is rotatably attached to a link body (not shown).

Further, in the lateral direction, an operation panel 37 is attached to the front surface of the support frame 36 between the seat 35 and the endless transport belt 30 (for example, bolts, nuts, etc.).
It is attached detachably via. When the operation panel 37 is tilted in the front-rear and left-right directions, the power steering
An operation panel lever 38 having the same functions as those of 10 (elevating and lowering of the transfer device 7 and turning of the traveling vehicle body 3), an emergency stop switch 39 for stopping operation of the prime mover, and a control switch 40 are provided.

When the control switch 40 is turned on,
When the operation panel lever 38 is tilted to the left or right, the switches 16 and 17 are held for a certain period of time. However, when the operation panel lever 38 is tilted in the opposite direction, the switches 14 and 15 are held for self. And the power is transmitted to the traveling device 1. The self-holding time can be adjusted by a rotary self-holding time adjusting knob 41. Even if the operation panel lever 38 is operated in the opposite direction to the direction during the self-holding, the self-holding time is maintained. The time from the start to the time of operation on the opposite side of the operation panel lever 38 is stored in the memory 4 of the microcomputer.
2 is a configuration for storing, and thereafter, this time is held by itself. The changed self-holding time is returned to the original self-holding time when the self-holding time is changed by the self-holding time adjusting knob 41 or when the engine switch 11 is turned off.

Therefore, even if the direction change amount is too large in the set time depending on the field conditions, the direction change operation can be ended at an arbitrary position and the value is stored thereafter, so that the resetting operation is performed. Becomes unnecessary, and operability can be improved. Since the operation panel 37 is provided near the operator, the traveling direction of the traveling vehicle body 3 and the elevating operation of the transport device 7 can be easily performed even when the operator is in the seat 35,
Further, since the operation panel 37 is positioned obliquely rearward of the worker, the operation panel 37 does not come into contact with the worker at the time of work, thereby preventing erroneous operation.

When the power steering lever 10 is operated, the lifting and lowering of the transporting device 7 and the turning function of the traveling vehicle body 3 by the operation panel lever 38 are stopped. Conversely, the operation panel lever 38 is operated. In this case, the lifting and lowering of the transport device 7 by the power steering lever 10 and the turning function of the traveling vehicle body 3 are stopped. Next, a description will be given of a harvesting operation of vegetables vegetated in a field (in the embodiment, cabbage).

First, when the preparations for the work are completed, the harvester sits down on the seat 35 to prepare for cutting the cabbage, others are located in the collecting section 6, and the driver operates the driving section 4. The prime mover is started by the operation of turning on the engine switch 11 while sitting in the seat 9 to drive the rotating parts of the body. Next,
When the main transmission lever 23 is operated forward and the aircraft is advanced through the HST 22, the power steering lever 10 is tilted left or right to turn on the switches 14 and 15, and the solenoid valve 18 for turning is switched. A left or right actuator (not shown) actuated by hydraulic pressure supplies power to a drive shaft (not shown) for driving the traveling device 1.
Since the left or right side clutch 19 or the right side clutch 20 to be disengaged turns the airframe to the left or right, the driver adjusts the airframe to a predetermined ridge while operating the power steering lever 10. After completing the ridge alignment of the body, the operator returns the main transmission lever 23 to the neutral position and stops the forward movement of the body.

Further, when the power telescopic lever 10 is tilted forward or rearward, the switch 12 or 13 is turned on to switch the electromagnetic valve 16 for elevating and lowering, and in connection with this, the elevating cylinder 17 is expanded and contracted by hydraulic pressure and conveyed. Since the transport start end of the apparatus 7 is moved up and down, the operator operates the power telescopic lever 10 to adjust the height of the transport apparatus 7 to an appropriate position, and the driver in the driver's seat 8 turns on the transport apparatus switch 25 to turn on the power. The motor 24 is activated to drive the endless transport 30.

Subsequently, the driver operates the throttle lever 21 to set the rotation speed of the prime mover to a predetermined rotation speed, operates the main transmission lever 23 to move the body forward, and furthermore, if necessary, the power telescope 10. Tilt to the left or right to correct the forward direction of the aircraft and start work. Then, the cabbage in the field is cut off by the worker in the work seat 35 and placed on the endless transport belt 30 whose transport surface moves upward and backward. The cabbage is received by the plate 29 and transported upward and backward. .

After that, the cabbage discharged from the transport end of the endless transport belt 30 is supplied to the work table. Is removed and aligned with the container placed on the work floor 5 of the collection unit 6. Then, when the cabbage in the container reaches a predetermined number, the worker moves the container to another place on the work floor 5 and places an empty container placed on the auxiliary work floor or the work floor 5 near the work plate near the work board. Move to floor 5.

In such a work, when the driver who has been in the driving section 4 moves to the collecting section 6, it may be necessary to correct the traveling direction of the body or to stop the transfer device 7 or the prime mover urgently. is there. At this time, the worker can move to the operation unit 8 to operate a switch or the like, but sometimes the worker is away from the worker and cannot respond quickly.

On the other hand, an operation panel 37 provided with an operation panel lever 38, an emergency stop switch 39, a control switch 40 and the like is provided separately from the operation section 8 within a reach of a worker working on the seat 35. , So that when an emergency operation is required, it can be responded quickly. And the control switch 40
Is turned on and the operation panel lever 38 is operated. Since the self-holding operation is performed for a certain period of time, there is no need to continue the operation panel lever 38 tilting operation when performing the traveling direction of the aircraft. After operating the panel lever 38, the cabbage can be cut off quickly, and the work efficiency can be improved.

When the operator determines that the amount of change in the direction of the traveling vehicle body 3 is large during self-holding, the operator operates the operation panel lever 38 in the direction opposite to the previous operation (tilting) direction. The holding is released and the change of the traveling direction is stopped. Therefore, since the direction can be changed arbitrarily while the user is self-holding, the direction can be easily adjusted and the working efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a self-propelled working machine.

FIG. 2 is a side view of the self-propelled working machine.

FIG. 3 is a plan view of a frame of the transfer device.

FIG. 4 is a front sectional view of the transfer device.

FIG. 5 is a front view of an operation panel.

FIG. 6 is a block circuit.

FIG. 7 is a flowchart.

[Explanation of symbols]

 1 Traveling device

Continued on the front page F term (reference) 2B043 AA04 AB06 DA05 EA02 2B075 AA10 GA06 JE18 3D041 AA00 AA40 AB00 AB04 AC00 AC22 AD00 AD10 AD37 AD53 AE00 AE01 AF01 AF07

Claims (1)

[Claims] 1. The traveling device 1 is configured to change the traveling direction to the operating direction for a predetermined time by operating the operating device to one side, and at the time of the change, operating the operating device to the other side stops the change in the traveling direction. A self-propelled work machine characterized by the following.