JPS592610A - Misoperation warning device for rice transplanters - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an erroneous operation warning device for a rice transplanter that detects and warns of erroneous operations when the rice transplanter is running, mainly in a riding type rice transplanter.

For example, in a rear-mounted rice transplanter, the planting device is not visible to the operator, and the planting rod of the planting device has recently been soundproofed and vibration-proofed. It is not possible to confirm whether the planting device is operating or not.For this reason, people forget to operate the planting clutch lever, which switches the planting device between the planting operation state and the non-operation state. Planting in the field may be moved by lowering the planting device as it is.Also, when driving on the road or turning on the headland in IIi, the control operation of the hydraulic cylinder that lifts the planting device is performed using hydraulic pressure. This is done by switching the operating lever, but if you forget to do this, there is a risk of damaging the planting device. Also, if you forget to operate the planting clutch lever at times like this, you may waste seedlings or damage the planting lever. A situation may occur that may cause damage or damage to the product.

The present invention has been made based on the above circumstances, and by providing an alarm when you forget to switch the planting clutch lever and hydraulic control lever, you can prevent mistakes in planting work and damage to the planting equipment. The present invention aims to provide a rice transplanter erroneous operation warning device that can prevent erroneous operations from occurring.

For this purpose, the present invention raises and lowers the planting device by controlling a hydraulic cylinder, and provides a hydraulic control lever for switching the hydraulic cylinder and a planting clutch for switching the planting device between operation and non-operation. In a rice transplanter equipped with a lever, when only one of the hydraulic operation lever and the planting clutch lever is operated so as to be in the operating state for the above-mentioned planting device, the rice transplanter will not be able to travel. This device is characterized by being equipped with a signal circuit that generates an erroneous operation alarm.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a side view of a riding rice transplanter to which the present invention is applied;
The figure is a plan view of the same. In the figure, reference numeral 1 is a running vehicle body, and a guide ball 3 with a warning lamp 2 attached to the tip is installed at the front end. Inside the front bonnet 4, an engine, A transmission, etc. is installed.・An operation panel 5 is provided on the right side of the seat (see Figure 2), and a hydraulic operation lever 8 is inserted through two parallel slits 6 and 7.
and a planting clutch lever 9 are arranged.

The slit 6 has a hook-shaped slit 6a on the side for maintaining the lever lock position. There are front wheels 10 and rear wheels 11 on both sides of the traveling vehicle body 1, and the rear wheels 11 are pivotally supported on the rear end of a chain case 12, and transmission from the transmission is via the chain case 12. It is designed to be rotated by driving force.

A lifting link mechanism 13 made of a parallelogram link is provided at the rear of the traveling vehicle body 1, and a planting device 14 is supported via this link mechanism 13. The lifting link mechanism 13 has a swing lever 15 fixed to its upper link 13a, which is pivotally connected to a piston rod 16a of a hydraulic cylinder 16, and the hydraulic cylinder 16 is pivotally supported by the vehicle body 1.

The planting device 14 is connected to the lower link 13b and receives power from the traveling vehicle body 1 side via the propeller shaft 17, and the seedlings are supported by the frame 19 of the planting device with the support frame 18. The platform 20 is equipped with a napier shaft 21 for reciprocating the platform once left and right, a planting rod 22 provided at the rear, and the like. In addition, the planting device 14 connects the side floats 23 and the center float 24 to the pivot parts 25 and 2.
6, and part of the load is transferred to the float 23.
．． 24. In addition, the above float 23.24
It is supported by the frame portion of the planting device 14 via links 27 and 28 bent in a dogleg shape at the front part thereof, and is provided with suitable elastic means (not shown). .

Moreover, the hydraulic cylinder 1 is mounted on the upper surface of the center float 24.
A switching spool valve 29 that controls 6 is connected. The spool valve 29 has a structure as shown in FIG.
When the float 9a is pushed up, pressure oil is supplied to the hydraulic cylinder 16, and when the buoyant force applied to the float 24 decreases, the pressure oil in the hydraulic cylinder 16 is released to the oil tank 30. In addition, in the neutral state, the hydraulic cylinder 1
6 oil passage is shut off and locked.

The spool valve 29 has a boat 29C1 connected to the pump 31, a boat 29D1 connected to the hydraulic cylinder 16, and an oil tank 30 connected to the valve housing 29b.
A communication path 29e communicating with the spool 29 is provided.
An annular valve passage 29f is formed in a.

The boat 29c and the communication path 29e are communicated with each other as shown in the figure, but when the spool 29a is raised, the boat 29g at the top communicating with the oil tank 30 is connected to the spool 29e.
9a, and in this state boats 29C and 29d
and are communicated with each other via a valve passage 29f.

In such a configuration, the operation switching as described above is performed for the hydraulic cylinder 16.

The control to the hydraulic cylinder 1G carried out via the switching spool valve 29 is carried out exclusively to correspond to changes in plowing depth and to maintain a constant level of the planting device relative to the rice field. This is done by supplying, shutting off, and releasing pressure oil to 16 via the elevating link mechanism 13.

The switching spool valve 29 is manually operated by the hydraulic operating lever 8 via the control wire 32. That is, when the hydraulic operating lever 8 is pulled rearward, the control wire 32 is activated to forcibly pull up the front part of the center float 24, causing the switching spool valve 29 to
Set the oil supply state to the hydraulic cylinder 1G. Also, when pushed forward, the control wire 32 loosens and the center 70
When the manual pressure on -1-24 is released and the lever is placed in the lock position, the switching spool valve 29 is maintained in the neutral position.

Therefore, when traveling on the road, it is sufficient to pull the hydraulic pressure/operation lever 8 rearward to supply pressure oil to the hydraulic cylinder 16, lift the planting device 14, and then put it in the lever lock position. The same applies when turning when changing direction on a headland in a field. During planting work, the hydraulic control lever 8 is pushed forward so that automatic control by the switching spool valve 29 can be performed.

In addition, the planting clutch lever 9 connects and disconnects the power transmission system to the planting gear 1 @ 14 in the transmission.
If you pull it backwards, it will disconnect, and if you push it forward, it will connect.

And the dirt floor operation panel 5 has slits 6.7 and 6.7, respectively.
Double-pole single-throw changeover switches Sp and Sc (see Fig. 6) are provided correspondingly to the front of the cellars 1 to 1 to switch on when the respective levers 8 and 9 come to the front.
has been done.

Its circuit configuration is shown in FIG. That is, the changeover switch Sp switches the movable element 5p-1 to the fixed contact 5p-2.
When set to the side, it gives a clutch connection signal and the fixed contact Sρ
When set to -3 side, it gives a clutch disengagement signal. In addition, in the above changeover switch SC, the movable element 3 cm'1 is connected to the fixed contact 3.
When set to the cm2 side, a fixed/lift signal is given, and when set to the fixed contact 3C-3 side, a planted state signal is given. And fixed contacts Sp~2 and 3c-2 and 5l)-
3 and 3cm3 are connected in series to each other and to the lamp 2 and the power supply, respectively.

In addition, the left and right side brake means (
Plequipetal 33 for (including reed clutch)
are provided, each with a corresponding push-on switch Ss (see FIG. 7). The switch S8 is the fixed contact 5p of the switch Sp.
-2 is connected to lamp 2 in series.

In addition, in this embodiment, the slit 2 provided in the seedling V stand 20
Corresponding to 0a, a push-off type switch ST (8th
(see figure), and the lamp 2 is connected in series with the fixed contact 811-2.
It is connected to the.

Next, the states of occurrence of an erroneous signal will be sequentially explained.

(1) When performing planting work in the field as usual, if the planting clutch lever 9 is tilted forward and the hydraulic lever 8 is tilted forward, each switch Sp and SC are on opposite sides. Switching C1 At least both switches Sp, S
J3 is in the circuit related to c, and lamp 2 is not lit.

(2) When performing planting work in the field as usual, the planting clutch lever 9 is tilted forward, but if the hydraulic lever 8 is tilted backward from the fixed position, both switches Sp
, Sc are connected in series, and the lamp 2 is turned on.

(3) When performing planting work in the field as usual, the operation of the planting clutch lever 9 is forgotten and is pushed backwards, leaving only the hydraulic lever 8 in the forward position, i.e., the planting device 14
If you switch 61 to the planting work state, both switches Sp
, Sc are connected in series to light the lamp.

(Condolences) When driving on the road, or when the planting device 14 should be raised and rotated, if the planting clutch lever 9
Alternatively, if either one of the hydraulic levers 8 is left in front, both the switches Sp and Sc are connected in series and the lamp is turned on, as described above.

In addition, in the planting work state, when the switch ST is turned on by stepping on the blade plate 33 or due to a shortage of supplies, the lamps are turned on because the switches Sθ and ST are both connected in series to the switch Sp.

Such a relationship is shown in the operational chart of FIG.

In this embodiment, a lamp is turned on as the alarm means, but it goes without saying that a buzzer display, a combination thereof, or other alarm means may also be used.

As described above, according to the present invention, when a user forgets to switch the planting clutch lever and the hydraulic control lever, it is possible to warn the user of this, and as a result, it is possible to prevent mistakes in planting work and damage to the planting device. This has the effect of preventing such things from happening.

[Brief explanation of drawings]

FIG. 1 is a side view of a 1B transplanter showing an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a longitudinal cross-sectional view of a spool valve.
Figure 4 is a circuit diagram, Figure 5 is a list of malfunctions and conditions, and Figure 6 is a list of incorrect operations and conditions.
The figure is a side view of the lever operation part, FIG. 7 is a side view of the platen part, and FIG. 8 is a partial side sectional view of the seedling stand. 6.7...Slit, 8...Hydraulic operation lever, 9.
... Planted clutch lever - 16a... Slit, 14.
...Planting device t, 529...Spool valve, 32.
...Con 1~Roll wire, 33...Plake petal, Sp, sc, Se. ST...Switch, 2...Lamp. Patent applicant: Patent attorney representing Iseki Agricultural Machinery Co., Ltd.
Makoto Kobashi Ukiwa Patent Attorney Susumu Murai + 5 Otomanme 6 Diagram Procedure Amendment (Rei) October 78, 1980 Patent Application No. 110485 [1] ttim
Misoperation Alarm Device for Machines 3, Relationship with the Amended Person Case Patent Applicant 70011 Mamoto-cho, Matsuyama City, Ehime Prefecture (012) Iseki Agricultural Machinery Co., Ltd. Representative Masataka Iseki 4, Agent

Claims (1)

[Claims] It has a hydraulic cylinder for raising and lowering the planting device, and includes a hydraulic operating lever for switching the hydraulic cylinder, and a planting clutch lever for switching the planting VT position between operation and non-operation. In a rice transplanter, only one of the hydraulic operation lever and the planting clutch lever is
An erroneous operation warning device for a rice transplanter, comprising a signal circuit that generates an erroneous operation alarm regarding the running of the rice transplanter when the above-mentioned planting device is operated to be in an operating state.