JPS648967B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an improvement of a seedling replenishment warning device for a rice transplanter, which has a seedling stand installed at the rear or front of the machine body that reciprocates within a certain range in the left-right direction.

[Conventional technology]

In the above-mentioned rice transplanter, in order to stably supply spare seedlings to the seedling platform, the seedling platform is stopped at approximately the center of its horizontal movement range, and an alarm is issued at that stopping position. There is something.

[Problem to be solved by the invention]

In the above-mentioned conventional system, when it is necessary to replenish seedlings, an alarm sounds, and the traveling of the machine and the driving of the planting section are stopped, and the alarm continues to sound until the replenishment of seedlings is completed. If the alarm is stopped by turning off a switch, there is a problem that if the user forgets to turn on the switch when planting work is restarted, the alarm device will not operate. The present invention solves the above-mentioned problems and operates an alarm means so that the seedling platform can be stopped at an appropriate position within the range of movement in the left and right direction when it is necessary to replenish spare seedlings. To provide a seedling replenishment warning device which does not continue to issue an alarm until completion.

[Means to solve the problem]

In order to achieve this purpose, the seedling replenishment warning device for a rice transplanter according to the present invention provides a seedling replenishment warning device for a rice transplanter that is equipped with a seedling tray that reciprocates within a certain range in the left and right directions at the rear or front of the machine body. The sensor switch is activated when it detects the decrease in the number of seedlings, and the seedling feeding mechanism is activated intermittently at the moving end of the seedling platform. The present invention is characterized in that a position indicating switch is provided in the power supply circuit of the alarm means, and the alarm means is activated by the operation of both of the switches.

[Effect]

With the above configuration, when the number of seedlings on the seedling platform decreases, the alarm means is activated only during the seedling feeding operation of the seedling feeding mechanism.

【Example】

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling vehicle body of a riding-type rice transplanter, and a planting machine 3 is connected to the rear of this traveling vehicle body 1 via a lift mechanism 2. The planting machine 3 has a float 5 attached to the lower part of the machine body 4 for leveling the cultivated soil surface of the field, and as shown in FIG. A plurality of planting rods 7 are provided opposite to each other at the lower end of this seedling platform 6, and these planting rods 7 and the seedling platform 6 Through related operations, the seedlings placed on the seedling stand 6 are cut out one by one and planted in the field.
Further, the machine body 4 is provided with a seedling feeding mechanism 8, in which a seedling feeding roller 10 is rotated via a ratchet mechanism by the rotation of the seedling feeding arm 9, and the seedling mount 6 is moved left and right. When reaching the end, the seedlings placed on the seedling stand 6 are sent out downward. Note that the above configuration is similar to that of a conventionally used riding-type rice transplanter. The seedling platform 6 is vertically partitioned into a plurality of parts corresponding to the planting rods 7 by partition plates, and a reduction in the number of seedlings placed on the seedling platform 6 is sensed in each partitioned section. A sensing switch 11 that is turned on is provided, and a position indicating switch 12 is provided at an appropriate position in the left and right direction on the rear surface of the seedling stand 6.
2 is turned on when the seedling feeding arm 9 of the seedling feeding mechanism 8 moves upward, and is turned off when the seedling feeding arm 9 is returned by a spring (not shown). Further, as shown in FIG. 1, the seats 13 provided on the traveling vehicle body 1 are horizontally rotatable by more than 90 degrees in the left and right directions. Said seat 13
A member 14 for removably installing a spare seedling stand (not shown) is disposed on both sides of the stand. Furthermore, as shown in FIG. 3, the horn 16 of the rice transplanter, the position indicating switch 12, and the group of sensing switches 11 provided in parallel are connected in series to a battery 15 mounted on the traveling vehicle body and grounded. A horn switch 17 is connected to the horn 16 in parallel with the position indicating switch 12 and the like. In the embodiment configured as described above, during the planting work of the rice transplanter, the seedling platform 6 is moved in the left and right direction,
When the seedling tray 6 reaches the end of its horizontal movement range due to the operation of the seedling feeding arm 9, the position indication switch 12 is turned on, but if the seedlings on the seedling tray 6 do not require replenishment, all Since the sensing switch 9 is turned off, the horn 16 does not work. When the number of seedlings in at least one of the partitioned areas of the seedling stand 6 decreases and replenishment becomes necessary, the sensing switch 9 corresponding to that area is turned on, and in this state, the position indicating switch 12 is turned on as described above. When activated, the horn 16 sounds to issue an alarm, but the horn 16 sounds only during the seedling feeding operation. The alarm causes the rice transplanter to stop running, and the seedling platform 6 to be stopped at the position where the horn 16 sounds or approximately in the center of the range of movement in the left and right direction, and the seat 13 is stopped.
Supply spare seedlings from In this case, by horizontally rotating the seat 13 by a desired angle, the operator can easily replenish seedlings while sitting on the seat 13. When the rice transplanter starts traveling and planting work after seedlings are replenished, the above-described operations during the planting work are repeated again. In addition, in the present invention, although the horn of the rice transplanter was used as the warning means in the above-mentioned embodiment, a different buzzer or the like may be used as the warning means. Further, the present invention can be applied to a riding type rice transplanter in which a seedling platform is located in front of the seat, and a walking type rice transplanter in which a seedling platform is located at the rear or front of the machine body.

【Effect of the invention】

As explained above, according to the seedling replenishment alarm device of the present invention, the sensing switch detects the seedlings on the seedling platform, and the position indicating switch is actuated by the intermittent operation of the seedling feeding mechanism to activate the alarm means. Therefore, the alarm means is activated to stop the running of the rear rice transplanter and the driving of the planting section, and the alarm means is not activated while the seedlings are being replenished onto the seedling platform, so that the seedlings can be replenished quietly. Furthermore, since the alarm means is turned off when the power supply circuit is on, it is automatically activated when the planting operation is resumed after replenishing the seedlings.

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of a riding rice transplanter equipped with a seedling replenishment warning device according to the present invention, FIG. 2 is an enlarged side view of the main parts thereof, and FIG. 3 is a circuit diagram of the same. 1... Traveling vehicle body, 2... Lift mechanism, 3... Planting work machine, 4... Body, 5... Float, 6...
Seedling stand, 7... Planting rod, 8... Seedling feeding mechanism, 9...
... Seedling feeding arm, 10... Seedling feeding roller, 11...
...Sensing switch, 12...Position indication switch, 1
3... Seat, 14... Installation member for spare seedling stand, 1
5...Battery (power supply), 16...Horn (alarm means), 17...Horn switch.

Claims (1)

[Scope of Claims] 1. In a rice transplanter equipped with a seedling platform that reciprocates in a fixed range in the left and right directions at the rear or front of the machine, a sensing switch that operates by sensing a decrease in the number of seedlings on the seedling platform; , a position indicating switch that is turned on and off by the intermittent operation of the seedling feeding mechanism that operates intermittently at the moving end of the seedling table and detects it at an appropriate position within the left and right movement range of the seedling table is installed in the power supply circuit of the alarm means. A seedling replenishment warning device for a rice transplanter, characterized in that a warning means is activated by the operation of both the switches.