JPH064673Y2 - Travel control device for work vehicle - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a travel control device for a working vehicle such as a combine harvester and a harvester, and more specifically, a travel control device in which travel operation means is arranged at a position different from the driver's seat. Regarding the device.

(B) Conventional Technology Conventionally, a working vehicle, for example, a combine, cuts a grain rod that has been planted in a field by operating a cutting blade and traveling while appropriately raising and lowering a pretreatment unit. Further, even after the mowing work is finished, the grain culms that have been mowed on the headland part in the corner of the field remain unthrewed, and the mowing part also falls over or falls off the cutting blade, etc. Due to this, grain culms may be left behind little by little. Then, in order to process these unthreshed culms and uncut grain culms, the operator temporarily stops the operation of the combine while driving the automatic threshing device and gets out of the driver's seat, The remaining uncut grain culms are collected by hand cutting and manually put into the opening of the threshing device with a food chain for threshing work.

However, the above-mentioned conventional combine, when threshing the grain culm collected from the field in the state of being stopped at the same place, the straw by the work is discharged to the same place by the cutter or knotter, so it is as it is. If the work is continued, the straw is raised and the straw outlet of the cutter or the notter is clogged. Furthermore, if straw piles are made in several places in the field by this method, not only the appearance is bad but also the composting of straw is bad. Further, in order to carry the grain culms in the distant headland portion to the combine portion, the operator is forced to carry out a heavy labor and the efficiency is lowered. For this reason, the operator occasionally interrupts manual handling work to remove the straw that has accumulated under the cutter or knotter, or to return to the driver's seat and move the aircraft to another location to continue manual handling work. In particular, when there is only one operator or a small number of operators, manual operation and operation must be repeated, resulting in heavy labor, increasing the burden on the operator, and increasing alertness. There is a risk of being blunt and getting caught in the feed chain.

Therefore, the applicant has installed an operation means for controlling the traveling of the vehicle at a position other than the driver's seat in the machine body, and operates the operation means at the time of manual handling work to operate the driver's seat. There has been proposed a travel control device configured so that the vehicle can be moved to another work position without returning to the above.

(C) Problems to be solved by the invention By the way, although the operation means is installed at a position away from the driver's seat in the travel control device, a new wiring route for the operation means is provided in manufacturing the vehicle. Must be provided, set the mounting position of the operating means,
Since it has to be installed by using a large number of parts such as a bracket, there is a risk that the manufacturing process and the number of parts are increased, resulting in an increase in cost.

(D) Means for Solving Problems The present invention is intended to solve the above problems, and for example, as shown in FIGS. 1 (a), (b) and FIG. , The continuously variable transmission 31 and the continuously variable transmission lever 13 on the machine body 3.
In the working vehicle 1 including the actuator 32 for operating the continuously variable transmission 31 and the shift position detecting means 37 for detecting the shift position thereof, the traveling operation means is provided at a position different from the driver's seat 10 of the machine body 3. 16 and 17 are installed, and the traveling operation means 16 and 17 are integrally incorporated into a projecting electrical component 4a provided on the machine body 3 such as a flasher lamp.

(E) Operation Based on the above-described configuration, when performing manual handling work such as collecting and threshing grain culms left uncut in the field by hand cutting, the operator stops the work vehicle 1 at an appropriate work position, and continuously The speed change lever 13 is set in the forward drive range F (or the reverse drive range R) at the neutral position N and the driver's seat 10 is separated. In this state, the operator starts the manual handling work, and when the work is completed, or when the straw is piled up below the straw outlet 18 (see FIG. 5) of the automatic threshing device 6, the work vehicle The traveling operation means 16 and 17 are operated in order to move 1 to another work position. Then, the actuator 32 is operated by a signal from the control unit 21 based on the operation of the traveling operation means 16 and 17, and the continuously variable transmission 31 is driven at the set speed. As a result, the work vehicle 1 is moved forward or backward at a predetermined set speed to move to the next work position, and the operator operates the traveling operation means 16, 1.
It is stopped when the operation of 7 is stopped. Then, the manual handling work is started again at the work position.

On the other hand, when manufacturing the working vehicle 1, the traveling operation means 16 and 17 are integrally incorporated in the protruding electrical component 4a installed on the machine body 3, and the wiring route of the electrical component 4a is also used. Easy to install without increasing points.

(F) Embodiment An embodiment according to the present invention will be described below with reference to the drawings.

As shown in FIGS. 4 and 5, the combine 1 has a machine body 3 supported by crawlers 2, and the machine body 3 is provided with a feed chain 5 on one side thereof. 6 is arranged, and on the transporter U pipe 24 in front of it, an automatic handling depth sensor 28 is installed so as to be movable in a vertical direction by a predetermined amount so that the handling depth can be manually adjusted. Has been done. Further, in front of the machine body 3, a pretreatment section 7 is arranged so as to be able to move up and down, and a narrow guide 9 is installed on the side of the pretreatment section 7 so as to be able to rise and fall. Also,
A driver's seat 10 is arranged on the other side of the machine body 3,
An operation console 11 is arranged in front of the driver's seat 10, and a crank-shaped lever groove 12a is formed in an operation panel 12 provided on the side thereof, and a continuously variable transmission lever 13 is formed in the lever groove 12a. It is installed so that it can swing freely. Further, a flasher lamp 4a is installed on one side of the threshing cover 6a of the automatic threshing device 6, and a flasher lamp 4b is installed behind the driver's seat 10 facing the flasher lamp 4a. In addition, what is shown by 18 in the figure is a straw mouth.

Further, as shown in FIGS. 1 (a) and (b), the flasher lamp 4a has a cover 14 bolted to a flasher mounting bracket 8 projecting outward of the threshing cover 6a, and A lamp is stored inside the cover 14.
is set up. In addition, inside the mounting bracket 8,
The switch mounting bracket 15 is installed by a bolt B so as to be rotatable in the vertical direction of the machine body, and the bracket 15 is provided with a hand-operated traveling switch 16 and a direction correction switch 17. When these switches 16 and 17 are used, Other than the above, it is housed inside the flasher mounting bracket 8 and is exposed to the outside from the bracket 8 during use.
It is configured to be easily operated from the outside of the machine body 3. In the figure, reference numerals 19 and 6b respectively denote a lead wire and a hole for passing the lead wire.

On the other hand, as shown in FIG. 2, the shift position by the continuously variable transmission lever 13 is detected by the potentiometer 20, and the detected value is input to the microcomputer 21 (hereinafter referred to as a microcomputer). Further, in the mission case 22 installed in the machine body 3, side clutch solenoids 26 and 27 for switching the left and right side clutches 23 and 25 are output from the microcomputer 21 to turn on and off, respectively, and the left and right side clutches 23 are output. , 25 are connected and disconnected as appropriate. In addition, the drive side split pulley 29
The driven side split pulley 30 constitutes a continuously variable transmission 31, and the hydraulic actuator 32 including a double-acting cylinder that changes the width of the drive side split pulley 29 is installed. Further, the operation signal is sent from the hand-operated traveling switch 16 and the direction correction switch 17 to the microcomputer 21 when the operation is performed, and the signal from the hand-operated traveling switch 16 is provided in the microcomputer 21. It is input to the setting means 33 and sent to the comparing means 35 also provided in the microcomputer 21. Further, the piston rod 36 of the hydraulic actuator 32 is connected to a potentiometer 37 for detecting the expansion / contraction position thereof, and the detection value of the potentiometer 37 is input to the comparison means 35. . And the setting means 3
When the solenoid valve 39 is operated by this, the potentiometer 37 detects expansion and contraction of the piston rod 36. Compare means 3
Input to 5. Then, the detected value and the setting signal from the setting means 33 are compared by the comparing means 35, and as a result, the actuator 32 is further extended, contracted or stopped, so that the continuously variable transmission 31 corresponds to the set signal. It is configured so as to be in the gear shift position. The crank-shaped lever groove 12a formed on the operation panel 12 is
One side thereof is defined as a forward range F and the other side is defined as a reverse range R, and an intermediate portion where the forward range F and the reverse range R are communicated with each other is a neutral position N, and the lever 13 is located at the neutral position N. When the handwheel drive switch 16 is operated when the vehicle is laterally swung to the forward drive range F side or the reverse drive range R side, the main clutch 40 is connected by the above-described action and continuously variable transmission is performed. The device 31 is operated at a preset low speed, and the combine 1 is moved forward or backward at a low speed. In addition, what is shown by 41 and 42 in the figure is an engine and a counter case, respectively.

In addition, V of the continuously variable transmission lever 13 in the reverse range R
9 to V9 in the forward drive range F, the entire range from the neutral position N to the V in the forward drive range F or the reverse drive range R
The potentiometer 20 is configured to detect the positive and negative values of the respective values. Further, the cylinder stroke of the hydraulic actuator 32 is detected by the potentiometer 37. However, by setting a set value at the position for operating the continuously variable transmission 31 at a low speed of the cylinder stroke, the continuously variable transmission lever can be set. The cylinder stroke rises straight when operated by 13, but when operated by the hand running switch 16,
The actuator 32 is configured so as to stop rising at the position where the set value is set and stop the actuator 32 in order to maintain the state.

Since the present embodiment is configured as described above, in the field where the harvesting work by the combine 1 has been completed, the operator does not perform the manual handling work for manually threshing the uncut uncut grain culms. The machine 3 is stopped in a state where the automatic threshing device 6 is operated in the vicinity of the cut stalks being planted, and the continuously variable transmission lever 13 is moved to the forward range F in the neutral position N.
Set to the side (or the reverse range R side) and move away from the driver's seat 10 (S1). Then, the operator cuts and collects the uncut grain culms around the machine body 3, and further sequentially inserts the grain culms through the opening 6c of the automatic threshing device 6 to perform threshing work. The operator interrupts the hand-holding work when the straw is excessively swollen below the straw mouth 18.
Then, the switch mounting bracket 15 housed inside the flasher mounting bracket 8 is rotated downward to expose the hand-handled traveling switch 16 and the direction correction switch 17 from the bracket 8. In this state, the operator appropriately operates the hand-operated traveling switch 16 (S2). Then, the signal sent from the switch 16 is input to the setting means 33 (S3), and thereby the setting means 33 outputs the setting signal for causing the airframe 3 to travel at the set low speed. . Then, a signal is output from the comparison means 35 to the solenoid valve 39 based on the setting signal, the valve 39 is operated, and the hydraulic actuator 3 is operated.
2 is activated. As a result, the expansion / contraction of the piston rod 36 is detected by the potentiometer 37, and when the detected value is input to the comparison unit 35, the setting signal and the detected value are compared by the comparison unit 35 (S4). . And
When the detected value is larger than the set value of the set signal, the hydraulic actuator 32 is contracted and decelerated to approach the set speed (S5). When the detected value is smaller than the set value of the set signal, the actuator 32 is expanded and set. The speed is increased to approach the speed (S6). Further, when the detected value and the set value are equal, the actuator 32 is immediately stopped and its speed is maintained. Therefore, combine 1 is
When the operator travels at the set low speed and reaches the next work position, it is stopped by turning off the hand operation traveling switch 16, and the hand operation is restarted at that position. After the manual handling work is completed, the manual handling switch 16 and the direction correction switch 17 are moved inward of the flasher mounting bracket 8 together with the bracket 15 by rotating the switch mounting bracket 15 upward. It is stored. Therefore, the switches 16 and 1
7 is protected so as not to cause a malfunction or a failure due to dust. During traveling at the set speed of the combine, the direction of the machine body 3 can be corrected by appropriately operating the direction correcting switch 17 arranged below the flasher lamp 4a together with the manual traveling switch 16.

Further, in the present embodiment, the switch mounting bracket 15 provided with the hand-operated traveling switch 16 and the direction correction switch 17 is rotatably installed on the flasher mounting bracket 8 on which the flasher lamp 4a is installed. , 17 are rotated and projected together with the bracket 15 below the bracket 8 only when they are used, and when they are not used, they are rotated and housed inward of the bracket 8. ), (B), on the side of the case 45 of the automatic handling depth sensor 28 facing the cut side of the machine body 3, a manual handling switch 46 for switching to the manual handling mode,
The pretreatment up / down switch 47, which is operated when the manual handling switch 46 is switched to the manual handling mode, the traveling switch 49 for steering the aircraft 3 forward / backward and left / right, and turning on / off the power of the automatic threshing device 6. A self-disengagement clutch changeover switch 50 for switching between
The wirings 49 and 50 are added to the wiring of the handling depth automatic sensor 28, and the wiring is constructed in the same route as the wiring, and the wiring route of the hand switch 46, the pretreatment up / down switch 47, etc. is set. The cost may be reduced by improving the appearance with simple wiring without providing separately. Furthermore, since the handling depth automatic sensor 28 is disposed behind the pretreatment unit 7 and in front of the automatic threshing device 6, a dangerous rotating body such as the feed chain 5 is not located, and thus the handling depth is manually handled. It is possible to work safely when performing manual handling work by switching to the working mode. Further, the operator manually operates the automatic handling depth sensor 28 in the vertical direction of the carrier U pipe 24, whereby the switches 46, 47, 4 are
It is possible to set 9,50 to the height desired by the operator.

(G) Effect of the Invention As described above, according to the present invention, the traveling operation means 16, 17 installed at a position different from the driver's seat 10 of the machine body 3.
Is integrally incorporated in the projecting electric component 4a provided on the machine body 3, so that a special installation structure for attaching the traveling operation means 16 and 17 at the time of manufacturing the working vehicle 1 is considered, It is not necessary to take a space for installation, and it is possible to reduce the wasteful space from the machine body 3 to make it compact and to improve the operability because the traveling operation means 16 and 17 are attached in a protruding shape. Further, the wiring route can be made to be the same as that of the electrical component 4a, so that the workability at the time of manufacturing and the maintainability can be improved.

Further, when the electric component is the flasher lamp 4a and the traveling operation means 16, 17 can be stored and taken out freely, the traveling operation means 16, 17 can be exposed only when necessary and when not in use. It can be stored to prevent erroneous operation, and protect against water droplets and dust to prevent deterioration and failure. Further, since the flasher lamp 4a is usually noticeable, the traveling operation means 16 and 17 housed therein can be easily found and operated even when a person who is unfamiliar with the operation works. Can be improved.

Further, the case 45 of the automatic depth sensor 28 that handles electrical components is handled.
Then, the wiring of the traveling operation means 16 and 17 can be simply put together by using the same route as that of the automatic handling depth sensor 28, and it is safe at a position away from the feed chain 5 and the like of the automatic threshing device 6. The traveling operation means 1
6 and 17 can be operated, the case 45 of the automatic sensor 28 is slid up and down as in the case of manually adjusting the handling depth, and the traveling operation means 16 and 17 are set to the height desired by the operator. Therefore, the operability can be further improved.

[Brief description of drawings]

FIG. 1 (a) is a side view showing the installation structure of the traveling operation means according to the present invention, FIG. 1 (b) is its front view, FIG. 2 is its system configuration diagram, and FIG. 3 is its operation. flowchart,
FIG. 4 is a plan view showing the whole combine, FIG. 5 is a side view thereof, and FIG. 6 (a) is a front view showing another embodiment in which the traveling operation means is provided in the case of the automatic depth sensor. is there. And FIG. 6 (b) is a side view thereof. 1 ... Work vehicle (combining), 3 ... Airframe, 4a ... Projection-shaped electrical component (flasher lamp), 10 ... Driver's seat, 13 ... Infinitely variable lever, 16, 17 ... Traveling operation means ( Hand-operated traveling switch, direction correction switch), 31 ... continuously variable transmission, 32 ... Actuator (hydraulic actuator), 37 ... Shift position detecting means (potentiometer).

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI Technical display location B60Q 1/38 Z 8715-3K G05G 1/24 C 8009-3J

Claims (3)

[Scope of utility model registration request] 1. A continuously variable transmission lever installed in a driver's seat, a continuously variable transmission, and an actuator for operating the continuously variable transmission corresponding to an operating position of the continuously variable transmission lever. In the working vehicle, a traveling operation means capable of operating the actuator and traveling the working vehicle and stopping traveling is installed at a position different from the driver's seat, and the traveling operation means is provided on a body. A traveling control device for a working vehicle, wherein the traveling control device is configured by being integrally incorporated into a sheet-shaped electrical component. 2. The electric component is a flasher lamp,
The travel control device according to claim 1, wherein the travel operation means is installed so that it can be stored and taken out freely. 3. The traveling control device for a working vehicle according to claim 1, wherein the electrical component is a case of an automatic handle depth sensor.