JP3359849B2 - Work machine operation switch structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation switch structure mounted on a working machine such as a combine machine, for example, and an operation switch for artificially performing various operations on various devices mounted on an airframe, and various devices. The present invention relates to an operation switch structure of a working machine provided with a start switch for automatically operating the operation switch.

[0002]

2. Description of the Related Art Conventionally, in a working machine such as a combine machine, the operation of an operation switch for artificially performing various operations on various devices and the operation of a start switch for automatically operating various devices are determined. However, in a very short time from the point of manual operation, various operations of various devices and the start of automatic operation are performed based on the switching in a very short time.

[0003]

Therefore, in the above-mentioned conventional structure, when the switch is erroneously operated in the automatic operation, even if the switch is operated immediately, even if the switch is operated, the emergency stop switch is operated. During this period, the automatic operation has been activated, and it is necessary to perform an operation to return to a state in which the automatic operation has not been activated at all. was there. For example, if the switch for automatic storage of the combine unloader device is erroneously operated, even if the emergency stop switch is operated immediately, automatic storage may be performed to some extent, and the unloader device may be returned to the original position. Had troubles such as troublesome work.

The present invention has been made in view of the above circumstances, and even if a start switch to be automatically operated is erroneously operated, if the operator immediately notices the erroneous operation, the work machine can prevent the automatic operation from being performed. The purpose of the present invention is to provide an operation switch structure.

[0005]

[Means for Solving the Problems]

(Structure) An operation switch structure of a working machine according to claim 1 of the present invention includes an operation switch for artificially performing various operations on various devices mounted on the machine body and a start-up for automatically operating various devices. And a determination time for determining the switching of the activation switch is set longer than a determination time for determining the switching of the operation switch.

(Operation) According to the configuration of the first aspect of the present invention, when performing a specification operation on various devices artificially, the specification operation is performed while a person operates the operation switch. Therefore, even if the judgment time for determining whether or not the switching has been performed is set to be extremely short so that a person can operate the operation switch and start the specification operation, the operation is particularly large. Although there is no problem, when operating the start switch for automatically operating various devices, the determination time for determining that the switching has been performed is longer than that for the operation switch for manual operation, If a mistaken operation is performed by preventing automatic operation from starting until a time has elapsed after the operation of Automatic operation can be prevented from starting only by stopping the operation of the start switch, and automatic operation of various devices does not start only by operating the start switch for automatic operation for a very short time. This allows the user to determine whether or not the start switch has been operated without error, thereby promoting the avoidance of erroneous operation.

(Effects) Therefore, according to the configuration of the first aspect of the present invention, when the various devices are automatically operated, the operator can immediately recognize the erroneous operation and stop the switch operation as long as the operator stops operating the switch. Since the operation does not start, the problem that the automatic operation starts by mistake can be easily avoided.

(Structure) According to a second aspect of the present invention, in the operation switch structure for a working machine according to the first aspect, the operation switch and the start switch are provided at a tip end of an unloader device in a combine. It is characterized in that the activation switch is set for activation of an automatic storage means for automatically storing the unloader device in the combine.

(Operation) According to the configuration of the second aspect of the present invention, the operation switch and the start switch are provided at the tip of the unloader device in the combine, and
Since the start switch is set to start the automatic storage means for automatically storing the unloader device in the combine, the work to discharge the grains from the combine's Glen tank etc. by the unloader device is completed and the unloader device is automatically stored. In such a case, it is possible to automatically store by operating the start switch provided at the tip of the unloader device.In this case, if the start switch is operated accidentally without intending to automatically store it, If the operator notices the erroneous operation immediately, the operation is stopped immediately and the automatic storage is not performed.

(Effects) Therefore, according to the configuration of the second aspect of the present invention, it is determined that the automatic storage switching is performed for the start switch for automatic storage at the leading end side of the unloader device. If the operation switch for automatic storage is erroneously operated, the automatic storage does not start if the operation is stopped in a very short time, so that the automatic storage was mistakenly performed. In order to return to the original state one by one,
There is an advantage that it is possible to avoid the trouble that the operator returns to the driving unit and operates the operation switch there.

(Structure) According to a third aspect of the present invention, in the operation switch structure for a working machine according to the first aspect, the operation switch and the start-up switch are provided at a tip end of an unloader device in a combine. The startup switch is set for starting the grain discharge of the unloader device in the combine.

(Operation) According to the configuration of the third aspect of the present invention, the operation switch and the start switch are provided at the tip of the unloader device in the combine.
Since the start switch is set to start the discharge of the grain of the unloader device in the combine, the worker normally adjusts the position of the discharge port near the grain discharge port provided at the tip of the unloader device. In order to make it convenient to start the unloader device while performing the operation, a start switch that can start the unloader device is provided at the tip of the unloader device. When an operation for starting is performed, if the user immediately notices the erroneous operation, the operation is stopped immediately and the unloader device does not need to be started.

(Effects) Therefore, according to the configuration of the third aspect of the present invention, the start switch for automatically starting the unloader device at the leading end side of the unloader device is switched for the start. If the start switch for automatically starting the unloader device is erroneously operated, if the operation is stopped in a very short time, the unloader device Does not start, so
When the unloader device is activated by mistake, there is an advantage that it is possible to avoid a problem that some grains are discharged by the unloader device until the unloader device is stopped.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a combine. This combine is configured such that a body 2 supported by a pair of right and left crawler traveling devices 1 and 1 is equipped with a pre-cutting device 3, a threshing device 4, a boarding operation unit 5, a Glen tank 6, and the like.

As shown in FIGS. 1 and 6, a bottom screw conveyor 7 extending in the front-rear direction is
And the bottom screw conveyor 7
A vertical feed screw conveyor 8 for pumping grains is provided in an interlocking connection with a rear end extending rearward from a rear wall 6A of the Glen tank 6. A horizontal feed screw conveyor 10 that feeds the grains to the upper end of the vertical feed screw conveyor 8 sideways and then discharges the grains through a grain discharge port 9 at the tip end thereof is rotatable around the vertical axis Z and horizontally. Shaft core X
It is connected so that it can swing up and down freely. Here, the bottom screw conveyor 7, the vertical feed screw conveyor 8, and the horizontal feed screw conveyor 10 constitute an unloader device U.

As shown in FIGS. 1 to 4, the horizontal screw conveyor 10 includes a first screw conveyor 11 forming a root portion supported by an upper end portion of the vertical screw conveyor 8, and the first screw conveyor 11. And a second screw conveyor 12 that is supported so as to be able to move back and forth. More specifically, the outer case 12A of the second screw conveyor 12 is slidably fitted to the outer cylindrical case 11A of the first screw conveyor 11 having a cylindrical shape in the axial direction of the screw. And
In order to slide the second screw conveyor 12, rack gears 13 are arranged side by side on the lower surface portion of the outer cylindrical case 11 </ b> A (the upper side in the grain conveying direction of the horizontal screw conveyor 10 is the front side).
A pinion gear 14 is provided at the front end of the outer case 12A so as to be rotatably driven by an electric motor 15 as an actuator. By appropriately driving the electric motor 15 in the forward and reverse directions, the pinion gear 14 rotates,
The second screw conveyor 12 slides with respect to the first screw conveyor 11 while moving in and out. Then, in order to detect the limit of movement of the outer case 12A, the front end of the rack gear 13 and the outer case 12A
The dogs 16 and 17 for detecting the shortest position and the longest position are installed on the respective side portions of the dog.
Limit switches 18 and 19 for detecting the presence or absence of 6 and 17 are provided on the outer case 12A side. Further, a potentiometer 20 for detecting the rotation angle of the pinion gear 14 is provided.
The relative position of the second screw conveyor 12 with respect to the screw conveyor 11 can be detected. The detection signals from the potentiometer 20 and the limit switches 18 and 19 are input to a control device 21 mounted on the machine body.

The screw shaft 11C of the screw body 11B of the first screw conveyor 11 is formed as a cylindrical shaft, and a transmission shaft 22 which is spline-fitted to the screw shaft 11C so as to be able to move back and forth in the axial direction. Case 1
It is erected in the upper part of the internal space of 2A in a state where its end is supported by bearings. And the second screw conveyor 1
2 screw body 12B is disposed at a lower portion of the internal space of the outer case 12A, and the transmission shaft 2B
The screw body 12 </ b> B is rotationally driven by the power from the first screw conveyor 11 transmitted via the chain transmission mechanism 23 interlockingly connected to the screw 2. Therefore, the outer case 12
With the movement of A with respect to the outer cylinder case 11A, transmission from the screw shaft 11C to the transmission shaft 22 and, consequently, transmission to the screw shaft 12C are possible.

As shown in FIG. 5, a metal fitting 24 for receiving and holding the laterally fed screw conveyor 10 in a storage position above the Glen tank 6 or the like in a mounted state.
Is installed on the fuselage 2. And this receiving bracket 24
The outer cylinder case 11 of the first screw conveyor 11
A limit switch 25 is provided for detecting the mounting posture when A is normally mounted. The detection signal of the limit switch 25 is input to the control device 21.

As shown in FIG. 1, the horizontal feed screw conveyor 10 is turned around the vertical axis Z by an auger turning electric motor 26, and is turned around the horizontal axis X by a hydraulic cylinder 27. It is designed to be driven up and down. This horizontal feed screw conveyor 1
A potentiometer P1 for detecting a turning angle around the vertical axis Z of 0 is provided, and a potentiometer P2 for detecting a swing angle of the lateral feed screw conveyor 10 around the horizontal axis X is provided, as shown in FIG. Thus, the detection signals of the potentiometers P1 and P2 are input to the control device 21.

The screw conveyor 10 is fed by hand.
Although not shown in the figure, the control panel 5A of the boarding operation unit 5 includes a switch for turning the left and right of the lateral feed screw conveyor 10 in order to perform the swinging around the vertical axis Z and the horizontal axis X. , A switch for raising and lowering and a switch for expanding and contracting operation are provided. Further, an operation box 28 for remote operation in which an operator working near the grain discharge port 9 performs various operations of the horizontal feed screw conveyor 10 is provided at the tip of the horizontal feed screw conveyor 10. By operating the switches S1 and S2 for turning left and right of the horizontal feed screw conveyor 10 and the switches S3 and S4 for raising and lowering in the operation box 28, these operation information are input to the control device 21 and the control device 21 The position of the grain discharge port 9 can be appropriately set by, for example, an operator on a carrier of a transport vehicle operating the attitude of the lateral feed screw conveyor 10 by a drive signal from. Further, in the operation box 28, a start switch S5 for automatically storing the lateral feed screw conveyor 10, an emergency stop switch S6, and a switch S for extending the auxiliary tank 29 of the Glen tank 6 to the increasing side to operate.
7. A switch S8 for retreating the auxiliary tank 29 protruding to the increasing side toward the Glen tank 6, a switch S9 for operating the lateral feed screw conveyor 10 to the extending side,
A switch S10 for operating the lateral feed screw conveyer 10 on the shortening side, a paddy discharge start switch S1 for engaging or disengaging an unloader device clutch for discharging the unloader device U and stopping the discharge operation.
1, and a start switch S12 for automatically expanding and contracting the horizontal feed screw conveyor 10 to have an intermediate length between the shortest length and the longest length. still,
Switches having the same functions as those described above are provided in the boarding operation unit 5.
Is also installed on the control panel 5A. In addition, the unloading device U is not driven before the unloading start switch S11 operates the clutch (belt tension clutch) interposed in the transmission system to the unloader device U by an electric actuator (not shown). When the switching is performed in the state, the clutch is operated to be engaged, and when the unloader device U is switched in the driving state first, the electric actuator is operated so that the clutch is operated to be disengaged when the switching is performed. A determination is made, and the determination signal is input to the control device 21.

An input / output controller 30 for inputting a switching signal of each of the switches S1 to S12 provided in the operation box 28 and outputting it to the control device 21 is provided on the body side. The input / output controller 30 includes, among the switches S1 to S12, operation switches S1, S2, S3, S4, S9, and S10 for manually operating the horizontal feed screw conveyor, an unloader device U and a horizontal feed screw conveyor. Emergency stop switch S6 for stopping the posture change and expansion / contraction change operation of No. 10, and the above-mentioned paddy discharge start switch S11 is switched when the unloader device U is in the operating state, and the switching is continuously performed for 40 ms. In this case, an ON signal corresponding to each switch is output to the control device 21. In addition, the input / output controller 30 controls the horizontal feed screw conveyor 10 in the used state among the switches S1 to S12 to the potentiometers P1 and P2.
The automatic storage activation switch S5 for performing activation for automatic storage according to a pre-programmed procedure based on the information of
A start switch S12 for automatically expanding and contracting the transverse feed screw conveyor 10 to a predetermined intermediate length and changing the same, and the unhulling discharge start switch S11 is switched when the unloader device U is in a non-operating state. When switching is performed continuously for 500 ms, an ON signal corresponding to each switch is output to the control device 21.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a combine.

FIG. 2 is a longitudinal sectional side view showing a horizontal feed screw conveyor.

FIG. 3 is a longitudinal sectional front view showing a horizontal feed screw conveyor.

FIG. 4 is a side view showing the shortest state (a) and the longest state (b) of the lateral feed screw conveyor.

FIG. 5 is a front view showing a receiving bracket and the like.

FIG. 6 is a longitudinal rear view showing the Glen tank.

FIG. 7 is a front view showing an operation box.

FIG. 8 is a block diagram showing a control device and the like.

[Explanation of symbols]

 S1 to S4, S9, S10 Operation switches S5, S12 Starting switch U Unloader device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-98625 (JP, A) JP-A-63-313522 (JP, A) JP-A-8-299662 (JP, A) 39 (JP, U) Japanese Utility Model Showa 61-74338 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01F 12/46

Claims (3)

(57) [Claims] An operation switch for artificially performing various operations on various devices mounted on an airframe and a start switch for automatically operating various devices are provided, and switching of the operation switches is determined. The operation switch structure of the working machine, wherein the determination time for determining the switching of the start-up switch is set longer than the determination time for performing the operation. 2. The method according to claim 1, wherein the operation switch and the activation switch are provided at a tip end of an unloader device in the combine, and the activation switch is set to activate an automatic storage unit that automatically stores the unloader device in the combine. Item 2. An operation switch structure for a working machine according to Item 1. 3. The combiner according to claim 1, wherein the operation switch and the start-up switch are provided at a tip end of the unloader device in the combine, and the start-up switch is set for starting the grain discharge of the unloader device in the combine. Operation switch structure of work machine.