JPS6237926B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a seedling exhaustion alarm device for a rice transplanter in which a planting machine is connected to the rear of a traveling vehicle body.
The seedling loading platform of this type of rice transplanter is located behind the driver's seat, and the seedling loading surface is on the opposite side of the driver's seat, making it extremely troublesome to check the amount of seedlings. Conventionally, as a device for detecting the amount of seedlings on the seedling platform of a rice transplanter, as seen in Japanese Utility Model Application Publication No. 127312/1983, a lamp is used to detect and notify when the amount of seedlings on the seedling platform is low. The technique of this configuration is used in a passenger vehicle that has a planting machine attached to the rear of the passenger vehicle body with a seedling platform placed so that the seedling loading surface faces away from the driver's seat. It is conceivable that it could be used in a rice transplanter, but with such a configuration, when planting seedlings close to the ridge and then turning around to plant, the planting machine is generally lifted upward while turning. , At this time, the seedlings on the seedling placement surface dance on the placement surface,
It often happens that the vehicle rolls over, and in this case, the notification device activates and gives an erroneous notification, causing the vehicle to stop when turning.

Furthermore, when the vehicle is running on the road, there is the inconvenience of having to turn off the main switch of the electric circuit related to the notification device because there are no seedlings on the seedling platform.

This invention aims to eliminate the above-mentioned drawbacks and includes the following technical means.

That is, a planting machine is installed at the rear of a riding-type traveling vehicle via a lifting device, and the seedling platform is arranged in an inclined manner with the front side facing upward, so that the seedlings are placed on the upper surface. On the seedling stand that feeds the seedlings to the attachment device,
A sensing device is provided to detect when the seedlings to be placed are out of seedlings, and the sensing device and a notification device provided at an appropriate location on the vehicle body are connected by an electric circuit. A clutch device for intermittent operation of power is provided, and when the clutch device is turned on, the electric circuit is closed, and the notification device is actuated in the electric circuit regardless of whether the clutch device is turned on or off. This is a configuration of a seedling outage notification device in a rice transplanter which is equipped with a manual switch to do this.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is a riding-type traveling vehicle body, 2 is a planting machine attached to the rear of the vehicle via a lifting device 11, and the traveling vehicle body 1 has a pair of front wheels 3 at the front and a rear, respectively.
It has a rear wheel 4, and an engine 5 and a handle 6 are arranged in the front and a seat 7 in the rear.
The power of the engine 5 is transmitted to the front wheels 3 and/or the rear wheels 4 via a transmission system (not shown), and is also transmitted to the planting machine 2 via a planting clutch in the gearbox 8. The power to the planting machine 2 is controlled intermittently by a planting clutch lever 9. The planting machine 2 is attached to be movable up and down by an elevating device 11, and the elevating device 11 is constituted by parallel links that are rotated up and down by a hydraulic cylinder 10. The gearbox 12 of the planting machine 2 is equipped with a float 13 at the bottom and a seedling stand 14 at the top, and further faces a seedling outlet (not shown) provided at the lower end of the sloping end of the seedling stand 14. A planting body 15 that moves up and down is provided.
The seedling platform 14 accommodates the seedlings A, and is moved from side to side by the gearbox 12, so that the seedlings are successively brought to the seedling outlet at the lower end of the slope, and the planting body 15 is moved from side to side by the gearbox 12. Seedlings are cut out into single pieces from the outlet, carried to the field, and planted in the soil.

A crankshaft 16 is mounted on the engine cover 5' at the front of the traveling vehicle body 1, and its operating switch _S1 is disposed at the center of the handle 6. Further, a seedling sensing switch _S2 is connected in electrical parallel with the switch _S1 . The seedling detection switch S ₂ is attached to the rear surface of the seedling platform 14 in the planting machine 2, and its touch rod 17 is pivotally supported in the middle so as to be able to swing, and one end is supported by a push spring 18.
The other end is connected to the seedling mounting surface 1 of the seedling mounting table 14.
It faces the hole 19 drilled at 4'. Seedling stand 1
While there is a sufficient amount of seedlings in 4, the other end of the contact rod 17 is pushed down from the hole 19 and separated from the contact point 20 by the seedlings, as shown by the imaginary line, and the amount of seedlings is below a certain level as shown in the figure. When this happens, it is rotated by the push spring 18 as shown by the solid line and comes into contact with the fixed contact 20. And, between the seedling sensing switch S ₂ and the clutch 16, another switch S ₃ is provided in series with the switch S ₂ , and this switch S ₃ is linked to the operation of the planting clutch lever 9. When the clutch lever 9 is operated to the "continued" state, it is turned "ON", and when the clutch lever 9 is operated to the "disconnected" state, it is turned "OFF".

The electric circuit related to the above-mentioned crankshaft is as shown in FIG. E in the figure is a power supply.

In such a configuration, the planting clutch lever 9 is operated to the "continue" state to operate the planting work machine 2, and the rice planting work is performed while traveling on the rice field. As long as the amount of seedlings in the seedling table 14 is sufficient as shown by the imaginary line,
The contact rod 17 is pushed down by the seedlings against the push spring 18 and is separated from the contact point 20. When the amount of seedlings falls below a certain level as shown by the solid line, the contact rod 17 and the contact point 20 come into contact and the crankshaft 16 is activated. sounds to alert the worker. Of course, during this time, the operating switch on handle 6
It goes without saying that the klaxon 16 can be sounded independently by operating _S1 .

When the rice planting operation is stopped or when the rice planting clutch lever 9 is operated in the "off" state, such as when driving on the road, the seedling detection switch S2 and the power supply E are cut off, and the seedling detection switch _S2 and the power supply E are cut off. Regardless of whether the seedling detection switch S ₂ is turned ON, the klaxon 16 will not sound, and the operation switch S ₁ facing the handle 6 will not sound.
The klaxon 16 is sounded by the chisel.

Incidentally, instead of the horn 10, a warning lamp may be used to notify the user that the seedlings have run out.

As described above, since this invention has the above-mentioned configuration, it is possible to accurately recognize the state of out-of-seedlings on the seedling platform that is out of the operator's field of view, especially when the planting machine is lifted upward when turning. Naturally, the power transmission of the seedling planting device is cut off, so there will be no false alarms such as the floating of seedlings being reported as out of seedlings, which tends to occur when lifting the planting machine, and the operator will be able to avoid accidentally driving. Not only does it not cause the vehicle to stop, but this alarm device can be operated freely at any time, giving auxiliary workers other than the driver a warning that there are fewer seedlings and a signal to start work. It has unique effects that can be used for.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is an electric circuit diagram. 1... Traveling vehicle body, 2... Planting work machine, 3... Front wheel, 4
... Rear wheel, 5... Engine, 6... Handle, 7... Seat, 8... Gearbox, 9... Planting clutch lever, 10... Lift up cylinder, 11... Parallel link mechanism, 12... Gearbox, 13... Float, 14... Seedling Placing stand, 14'...Seedling placement surface, 15...
Planted body, 16...Klaxon, 17...Tactile rod, 18
...pressing spring, 19...hole, 20...contact.

Claims (1)

[Claims] 1. Seedlings are planted by installing a planting machine at the rear of a riding-type traveling vehicle body via a lifting device so that the seedling platform is slanted with the front side facing upward, and the seedlings are placed on the top surface. A sensing device is installed on a seedling platform that supplies seedlings to the device to detect whether the seedlings being placed are out of stock, and the sensing device is connected to a notification device installed at an appropriate location on the vehicle body using an electric circuit. In this case, a clutch device is provided for intermittent operation of rotational power to the seedling planting device, and when the clutch device is turned on, the electric circuit is closed and the clutch device is not inserted into the electric circuit. , a seedling-out notification device for a rice transplanter which is equipped with a manual switch that operates the notification device regardless of whether it is turned off or not.