JPS582186Y2 - Rice transplanter seedling feeding device - Google Patents

Description

[Detailed description of the invention] The present invention provides a preliminary seedling rest consisting of a bottom plate and a side frame, which is provided above the main seedling rest so as to be able to swing up and down. The present invention relates to a seedling feeding device for a rice transplanter configured to move the side frame apart from the bottom plate and swing upward in the seedling replenishing position.

Conventionally, this type of device is configured so that the entire side frame is separated from the bottom plate and swung upward, and seedlings are replenished with the bottom plate remaining on the main seedling stand.

However, when replenishing seedlings, as the spare seedling stand swings downward, the entire side frame is separated from the bottom plate and shaken, even though the entire load of the seedlings on the stand is applied to the free end side of the side frame. In order to move the seedbed upward, the side edge of the seedbed becomes attached to the free end of the side frame and is lifted up as a whole, which may cause the seedbed to collapse unexpectedly.

In view of the above points, the present invention prevents the side frame from lifting the seedlings integrally when the side frame swings when replenishing the seedlings,
The purpose is to suppress damage to seedlings when replenishing seedlings.

Next, one embodiment of the present invention will be described in detail based on the drawings.

A seedling planting device 3 is interlocked and connected to the rear of a traveling machine on which wheels 1 are mounted on an axis and a control section 2 is arranged, and the seedlings supplied from a seedling feeding device 5 are taken out one by one by the seedling planting device 4. The vehicle is configured to be used for planting rice fields, and a riding-type rice transplanter is used to continuously plant seedlings in the rice fields as the vehicle travels.

The seedling feeding device 5 includes a main seedling rest 6 arranged at the front of the seedling planting device 4 and tilted forward, and a bracket 7 near the upper end of the main seedling rest 6 that swings around a horizontal axis. It is composed of a spare seedling stand 8 which is pivotally connected in a movable manner.

The preliminary seedling stand 8 can be freely separated from the bottom plate 10 and the second bottom plate 10, which have an extended operation lever 9 adjacent to the control section 2, by engaging and disengaging the locking device 11, and is separated by a spring 12. It was always biased toward the upward swing side.

It is composed of a side frame 13 that is angular in plan view,
By swinging and fixing the operating lever 9, the stand is placed in a nearly horizontal position in which the stand is stably placed and supported on top of the stand, and in a seedling replenishment position in which it is swung downward and almost superimposed on the main stand 6. , and the position is changed so that the top of the main seedling resting table 6 is opened by upward swinging, and when there are no seedlings on the five-car stand 6°8, it is easier to separately supply seedlings to the main seedling resting table 6. In addition, the side frame 13 is integrated with the bottom plate 10 to prevent the preliminary seedlings from moving in the forward and lateral directions when the preliminary seedlings are placed, so that the preliminary seedlings can be stably placed. However, when replenishing seedlings, the locking device 11 comes into contact with the side frame 14 of the main seedling stand 6, moves the side frame 13 apart, and closes the bottom plate 1.
The structure is such that only the seedlings 0 are left on the main seedling stand 6 and the preliminary seedlings are allowed to move forward to replenish the seedlings.

The side frame 13 is located near the roadside portion 13b.

A seedling end holder 13a is provided which is pivotally connected to be vertically swingable around a horizontal axis, and the seedling end holder 13a is
via the first spring 15.

A locking lever 16 is always biased to swing toward the separation side and is pivotably connected to the free end portion 13b,
The second spring 17, which has a larger biasing force than the first spring 15, is always urged to swing toward the locking side, and the locking lever 16 comes into contact with the side frame 14 of the main seedling stand 6. , swings against the biasing force of the second spring 17, and is released from the lock along with the swing, and the seedling end retainer 13a swings away from the bottom plate 10 due to the biasing force of the first spring 15. These first springs 15, locking levers 16. When the preliminary seedling resting stand 8 is placed in the seedling replenishment position by the second spring 17, the seedling end holder 13a is moved to an upper position □ away from the edge of the free swinging end of the preliminary seedbed soil portion. Posture switching devices 15, 16, 17
It consists of:

As shown in FIG. 3, the locking device 11 is provided within the side frame 13 and is in contact with the side frame 14 on the side of the main seedling rack 6 to detect the seedling replenishment posture of the preliminary seedling rack 8. A pin 18 used as a detection tool is provided so as to be movable over a predetermined range □ in the vertical direction and biased to protrude downward via a compression spring 19. The stepped pin 20, which has a first tapered surface F1 and a second tapered surface F2 that is in sliding contact with the first tapered surface F, can be moved laterally.

The bottom plate 10 is configured to be biased toward the side that always protrudes at the bottom of the bottom plate 10, and as the preliminary seedling stand 8 swings downward, the bottom plate 1
0 and the stepped pin 20, the lower end of the pin 18 contacts the side frame 14 of the main seedling stand 6, and the pin 18 contacts the side frame 1
3, and accordingly, the stepped pin 20 retires inside the side frame 13, releasing the lock from the bottom plate 10, and only the side frame 13 is automatically moved by the biasing force of the spring 12. It is constructed so that it swings up and down.

In the figure, reference numeral 21 denotes a stopper that restricts the swing range of the seedling end receiver 13a of the side frame 13.

The timing for releasing the locking lever 16 from the seedling end retainer 13a of the side frame 13 is determined by
When replenishing the main seedling stand 6 with spare seedlings, the seedling end retainer 13a is released as the seedlings swing to the seedling replenishment position. From □, it is swung relative to the side frame 13 and retracted to an upper position away from the edge of the oscillating free end of the preliminary seedbed soil portion.

Both edges along the longitudinal direction of the side frame 13 are attached to the side frame 1.
3, and the edge on the swinging free end side is in an open state, and then the free end portion 13b is separated from the bottom plate 10, and the entire side frame 13 is configured to swing away from the bottom plate 10. It is.

A third tapered surface F3 is formed at the tip of the stepped pin 20, so that the bottom plate 10 can be easily swung upward and connected to the side frame 13 after the supplementary seedlings are exhausted. It is.

The structure for prioritizing the separation of the seedling end holder 13a from the bottom plate 10 when the side frame 13 is separated from the bottom plate 10 is not limited to the above-mentioned embodiment, but one example is when the spare seedling stand 8 is used to replenish seedlings. The position is electrically detected by a limit switch, and based on the detection, the solenoid is energized to forcibly swing the seedling end retainer 13a upward, and then the side frame 13
Various structural modifications are possible, such as allowing the entire structure to rise and swing.

As shown in the above embodiments, the characteristic structure of the seedling supply device for a rice transplanter according to the six inventions is that the bottom plate 10 and the side frame 13 are each configured to be vertically swingable, and the bottom plate 1
0 and the side frame 13 are configured to be freely engageable and detachable from each other, so that both of them 10
, 13 integrally configured to be vertically swingable.

The side frame 13 and the bottom plate 10 are connected to each other in a seedling replenishment position in which the stand is disposed above the main seedling stand 6 and the preliminary seedling stand 8 is swung downward relative to the main seedling stand 6. In a seedling feeding device for a rice transplanter configured to release the mating state and swing only the side frame 13 upward.

The preliminary seedling rest 8 has a side frame 1 on the side of the main seedling rest 6.
The detector 18 is provided with a detection tool 18 for detecting that the preliminary seedling rest 8 is in the seedling replenishment position by contact with the seedling supporter 4;
8, the side frame 13 on the preliminary seedling stand 8 side
A locking device 11 configured to release the engagement state between the bottom plate 10 and the bottom plate 10 is provided, and a swinging free end of the side frame 13 on the side of the preliminary seedling stand 8 is provided with a locking device 11 configured to release the locking device 11 from the bottom plate 10. A movable seedling end holder 13a is attached, and this seedling end holder 13
a can be freely changed into a seedling-receiving posture in which it comes into contact with the edge on the swinging free end side of the preliminary seedbed soil portion, and a retracted posture in which it is retracted to a position away from the edge of the preliminary seedbed soil portion; Furthermore, on this preliminary seedling stand 8.

Prior to the detection of the seedling replenishment posture by the detection tool 18 on the locking device 11 side, the side frame 13 and bottom plate on the side of the preliminary seedling rest 8 are brought into contact with the side frame 14 on the main seedling rest 6 side. 1
The present invention is characterized in that switching devices 15, 16, and 17 are provided to switch and operate the seedling end retainer 13a to the retracted position prior to the disengagement of the seedling end retainer 13a, and this configuration provides the following effects.

In other words, when replenishing seedlings from the preliminary seedling rack 8 to the main seedling rack 6, when the side frame 13 is separated from the bottom plate 10, the seedling end catcher 13a of the side frame 13, which is subject to the load of the seedlings on the bottom plate 10, is It swings relative to the free end portion 13b.

After separating the seedling end holder 13a and the side edge of the seedling that slides into contact with it while holding the seedling on the bottom plate 10 by the side frame 13, the entire side frame 13 is made to swing upward. As the side frame 13 is spaced apart from the bottom plate 10, the side frame 1
Accompanying to the seedling end holder 13a of No. 3, the side edges of the seedlings on the bottom plate 10 are lifted up integrally to prevent the seedling bed from collapsing unexpectedly.

Without damaging the seedlings, you can move them from the preliminary seedling stand 8 to the main seedling stand 6.
We have now been able to replenish seedlings smoothly and efficiently.

[Brief explanation of drawings]

The drawings show an embodiment of the seedling feeding device for a rice transplanter according to the present invention, and FIG. 1 is an overall side view of the rice transplanter, FIG. Figure 3 shows ■−■ in Figure 2.
FIG. 6...Main seedling stand, 8...Spare seedling stand. 10... Bottom plate, 11... Locking device, 1
3... Side frame. 13a...Seedling end holder, 14...Side frame, 15°16.17...Switching device, 18...
...detection tool.

Claims (1)

[Scope of utility model registration request] The bottom plate 10 and the side frame 13 are configured to be vertically swingable separately, and the bottom plate 10 and the side frame 13 are configured to be mutually detachable, so that both 10 and 13 can be vertically swung together. A movable spare seedling rest 8 is arranged above the main seedling rest 6, and the preliminary seedling rest 8 is swung downward with respect to the main seedling rest 6. In the replenishment position, the side frame 1
In the seedling feeding device for a rice transplanter configured to lift and swing only the side frame 13 by releasing the engagement state between the bottom plate 10 and the side frame 10, the main seedling placing table 6 is attached to the preliminary seedling placing table 8. It is equipped with a detection tool 18 that detects that the preliminary seedling resting stand 8 is in the seedling replenishment position from contact with the side frame 14 on the side, and the preliminary seedling resting stand is A locking device 11 configured to release the engagement state between the side frame 13 on the 8th side and the bottom plate 10 is provided, and a preliminary seedling stand 8 is provided.
A seedling end holder 13a is attached to the swinging free end of the side frame 13, and the seedling end holder 13a is attached to the swinging free end of the side frame 13 so that the seedling end holder 13a can swing up and down about the horizontal axis. The seedling receiving stand 8 is configured to be able to change its position freely between a seedling receiving position in which it comes into contact with the edge of the free end side and a retracted position in which it is retracted to a position away from the edge of the upper part of the preliminary seedling bed. is in contact with the side frame 14 on the main seedling rack 6 side before the detection tool 18 on the locking device 11 side detects the seedling replenishment posture, so that the side frame 13 on the preliminary seedling rack 8 side A seedling feeding device for a rice transplanter, characterized in that switching devices 15, 16, and 17 are provided for switching and operating the seedling end holder 13a to a retracted position prior to the disengagement of the bottom plate 10.