JPH0350651Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention includes a seedling tray that can be moved back and forth in the horizontal direction, and a slide that slidably supports the lower end of the seedling tray in the direction of feeding the seedlings. The present invention relates to a seedling stand structure for a rice transplanter, in which a plurality of support rods are installed at appropriate intervals in the lateral direction, projecting from a movable rail to receive the lower surface of the end of the seedlings placed thereon.

[Conventional technology]

In the seedling stand structure of this type of rice transplanter, each of the support rods is attached to the seedling stand by appropriate means such as bolts, screws, or welding in a seedling-receiving position protruding from the sliding rail (e.g. , Utsukai Showa 57-
Publication No. 100824).

[Problem that the invention attempts to solve]

In this conventional seedling rest structure, by receiving the lower surface of the end of the seedling placed on the support rod, the seedling rest can be reciprocated with the lower surface of the end of the placed seedling in sliding contact with the sliding rail. Although it is possible to suppress the collapse of the end of the placed seedlings due to movement as much as possible and avoid a decrease in the amount of seedlings to be taken out and mistakes in taking out the seedlings due to such collapse of the seedlings, the following problems still occur.

That is, when the number of planting rows is reduced at the edge of a ridge or when inspecting a rice transplanter, there are cases where seedling planting work is not performed, but the planting claws are driven and circulated, and the seedling stand is driven back and forth. However, even in this case, since the support rod is in a seedling-receiving position protruding within the locus of movement of the tip of the planting claw, contact between the planting claw and the support rod is unavoidable, and as a result, the support rod This is a problem in that the material that escapes from the planting nail due to its own elastic deformation generates a harsh sound every time it comes into contact with the planting nail, and furthermore, the durability of the planting nail and the support rod is reduced.

An object of the present invention is to improve the above-mentioned problems of the prior art through a simple and inexpensive modification of the support rod.

[Means for Solving the Problems] The characteristic configuration of the seedling stand structure of the rice transplanter according to the present invention is such that when the load of the placed seedlings is released, the support rod is moved out of the trajectory of the tip of the planting claw. The point is that the initial posture is set so that it elastically returns to the position.
Its actions and effects are as follows.

[Effect]

In other words, in the seedling planting state where seedlings are placed, the support rod is elastically deformed under the load of the seedlings,
The seedling can be held in the desired seedling-receiving posture protruding from the slide rail. However, when the number of planting rows is reduced at the edge of a ridge or when inspecting a rice transplanter, etc., when seedlings are not planted but the planting claw is driven and circulated, and the seedling stand is driven back and forth, As the seedling load is released, the support rod elastically returns to the initial position out of the trajectory of movement of the tip of the planting claw, so that the planting claw and the support rod do not come into contact as in the prior art.

[Effect of idea]

Therefore, by simply and inexpensively modifying the initial posture of the support rod as described above, it is possible to reliably achieve the intended purpose while also improving the planting claw and support during operation in the non-planted state. It has now been possible to satisfactorily avoid noise generation due to contact with the rod and the accompanying decrease in durability.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 8, a six-row planting device 2 is connected to the rear of the riding rice transplanter 1 so as to be movable up and down to form a riding rice transplanter.

As shown in FIGS. 1 to 7, the planting device 2 is capable of reciprocating in the horizontal direction, and each time it is located at the end of the horizontal movement path, six planted pine seedlings are placed side by side in the horizontal direction. A seedling platform 3 and a soil leveling float 4 are provided on the lower end side of the inclination, and the seedling platform 3 is provided with a forward-leaning posture that can be sent out, and a lower end of the seedling platform 3 in the direction of feeding the seedlings;
In other words, six seedling take-out openings 6 corresponding to each seedling resting part of the seedling resting table 3 are formed on the sliding rail 5 that slidably supports the lower end of the slope, and the side of the seedling resting table 3 is It is constructed by providing planting claws 7 that take out and plant each placed pine seedling A in unit quantities by circulating between each seedling take-out port 6 and the soil leveling mud surface in conjunction with the movement.

The means for sending out the pine seedlings placed on the seedling resting table 3 is provided by forming four holes 8 for each seedling resting part near the sloping lower end of the seedling resting table 3, and feeding the pine seedlings through each of these holes 8. By rotating while engaging the lower surface of the placed pine seedling A, the placed pine seedling A
Attach the rotary seedling feeder 9 that sends out the seedlings,
This is a means for sliding the placed pine seedlings A downwardly along the seedling placing stand 3 by sending out the seedling feeder 9 and the weight of the seedlings.

The seedling rest 3 has four support rods 10 for each of the seedling rests, each of which receives the lower surface of the end a of the seedling pine that protrudes from the seedling rest 3 onto the sliding rail 5. They are installed at appropriate intervals in the lateral direction.

The means for attaching the support rods 10 to the seedling stand 3 is a means for attaching two rods as a set by using the holes 8, and specifically, the means for attaching the support rods 10 to the seedling feeding table 3 is a means for attaching two rods as a set. A U-shaped rod portion 10a that engages with the lower side edge 8a of the hole 8 in the seedling feeding direction to prevent the support rod 10 from moving toward the lower side in the seedling feeding direction is provided at the end thereof. A seedling mounting stand 3 is attached to the end of the engaging rod portion 10a with the supporting rod 10 at a location on the lower side of the hole 8 in the seedling feeding direction.
A clamping rod 11 that elastically clamps the support rod 10 to prevent it from floating up from the seedling stand 3 is provided in a continuous manner extending between the ends of the two U-shaped engaging rod portions 10a, and The seedling stand 3 is equipped with the clamping rod 11.
This means integrally forms an engaging portion 12 that engages with the support rod 10 to prevent the support rod 10 from moving upward in the seedling feeding direction.

As shown in FIGS. 1, 2, and 6 (a) and (b), the support rod 10 is bent into a substantially curved shape when viewed from the side, so that when the load of the placed pine seedlings A is released, , the support rod 10 is set at an initial position such that it returns to a position deviated from the tip movement locus a of the planting claw 7 by its own elastic restoring force. Further, when the pine seedling A is placed, the support rod 10 is elastically deformed downward under the load of the pine seedling A, and is held in the desired seedling receiving posture in which it protrudes above the sliding rail 5. It is configured to

Furthermore, the U-shaped engagement rod portion 10 of the support rod 10
a is engaged with the lateral edge 8b of the hole 8 to prevent the support rod 10 from moving in the lateral direction.

The engaging portion 12 is a reinforcing plate 1 attached to the lower surface of the inclined lower end of the seedling stand 3 via a rivet 13.
The seedling tray 3 has an insertion portion formed into which the upper side portion of the seedling tray 4 in the seedling feeding direction is inserted.

To explain how to attach the support rod 10, that is, a single item, as shown in FIG. 6A, the support rod 10 is inserted into the hole 8 from the bottom side of the seedling stand 3,
The clamping rod 11 is engaged with the engaging portion 12. Then,
As shown in FIG. 6B, the clamping rod 11 and the engaging part 12
The support rod 10 is swung so as to touch the upper surface of the seedling stand 3, using the engagement point with the seedling stand 3 as a fulcrum, and the U-shaped engagement rod portion 10a is engaged with the hole 8.

Further, as shown in FIG. 5, among the opposing sides of the partition frames 3A, 3A of the seedling stand 3, the lower side sides 3a, 3a in the seedling feeding direction are replaced with the side surfaces 3a, 3a that are connected to the upper side in the seedling feeding direction. A recess is formed outward in the opposing direction so as to be larger than the facing width of the recessed sides 3a, 3b, and a side surface 3b on the upper side in the seedling feeding direction is formed on the seedling placement surface side of the recessed side surfaces 3a, 3a. , 3b are formed to form guide surfaces 3c, 3c for preventing the seedlings from shifting laterally. When configured in this way, when taking out the seedlings at the end of the reciprocating path of the seedling platform 3, one of the pair of left and right planting claws can be moved past the lateral side of the pine seedling A. As a result, no seedlings are left behind, and it is possible to suppress the occurrence of troubles in vertical feeding of seedlings caused by the soil portion of such leftover seedlings gradually adhering to the side surface of the partition frame 3A.

[Another example]

As means for elastically returning the support rod 10 to its initial position, the elastic restoring force of the support rod itself is used in the above-mentioned embodiments, but it may also be carried out using an elastic body exclusively for return.

[Brief explanation of drawings]

The drawings show an embodiment of the structure of the seedling stand of the rice transplanter according to the present invention, and FIGS. 1 and 2 are longitudinal cross-sectional side views of the main parts when seedlings are placed and when the seedlings are not placed, and FIG. 3 shows the main parts. FIGS. 4 and 5 are perspective views of the main parts, FIGS. 8 is a side view of the entire rice transplanter. 3... Seedling stand, 5... Sliding rail, 7... Planting claw, 10... Support rod.

Claims (1)

[Scope of Claim for Utility Model Registration] A seedling tray 3 that can be moved back and forth in the lateral direction is provided with a seedling tray 3 protruding from a sliding rail 5 that slidably supports the lower end of the seedling tray 3 in the direction of feeding the seedlings. In the seedling stand structure of a rice transplanter in which a plurality of support rods 10 for receiving the lower surface of the end of the seedlings are attached at appropriate intervals in the lateral direction, the support rods 10 are
The structure of a seedling stand for a rice transplanter is set to an initial position such that when the load of the placed seedlings is released, it elastically returns to a position out of the movement trajectory of the tip of the planting claw 7. The seedling stand structure for a rice transplanter according to claim 1, wherein the means for elastically returning the support rod 10 to its initial position utilizes the elastic restoring force of the support rod itself.