JP2001103820A - Seedling guide structure for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject guide structure afforded with the link mechanism for the front and lateral guide members of a seedling guide for a rice transplanter using such members simple in structure and requiring no high accuracy. SOLUTION: This seedling guide structure has such a scheme that a seedling withdrawal port 50a is opened on the lower part of a seedling stand 16, a front guide 41 and a pair of left and right lateral guides 42, 42 are set up extendedly downward from the port 50a and these guide members are linked to one another with a U-shaped fixture 44, and a slit 41a is provided on the lower part of the front guide member and threadedly set with the fixture 44, the threadedly setting position along the vertical direction is afforded with such a degree of freedom as to correspond to the length of the slit 41a and made to a recessed shape, and the above guide 41 is engagedly set on the fixture 44 and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seedling guide structure for a rice transplanter.

[0002]

2. Description of the Related Art Conventionally, a rice transplanter that cuts a seedling from a seedling stand from a seedling outlet provided at a lower portion of the seedling stand, and pinches and transports the seedling with a planting claw to plant the seedling in a field. It is known that a seedling guide is provided at a seedling outlet, and the guide member is disposed along a holding and conveying path of a planting claw, and a pair of left and right side guide members is provided below the seedling outlet. The seedlings are planted in a field while restricting the lateral orientation of the seedlings conveyed by the planting claws.

[0003]

In the above-described seedling guide structure, since the guide members are provided only on the side, the respective guide members are likely to vibrate during the planting operation, so that the seedlings to be pinched and conveyed are planted. It often had a bad influence on the wearing posture. In order to overcome this problem, there has been a demand for a seedling guide structure in which the guide members are interconnected at the lower part.
Further, a coupling mechanism using a member having a simple structure and not requiring high accuracy has been desired.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In claim 1, a seedling outlet is opened at the lower part of the seedling mounting table, and a front guide member and a pair of left and right side guide members are extended downward from the seedling outlet, and the front and side guide members are provided. Are connected by a U-shaped fixing bracket, and an elongated hole is provided below the front guide member to insert the fixing bracket.

According to a second aspect of the present invention, a place where the fixing bracket is inserted into the front guide member is formed in a concave shape.

[0006]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a side view of a riding rice transplanter, FIG. 2 is a plan view of the same, FIG. 3 is a side view showing a seedling guide structure, FIG. 4 is a side view showing a seedling guide, and FIG.
6 is a perspective view showing the seedling guide structure, and FIG. 7 is a plan view showing a fixing bracket of the present invention.

1 and 2, reference numeral 1 denotes a traveling vehicle on which an operator rides. The engine 2 is mounted above a front portion of a vehicle body frame, and a traveling front wheel 6 is provided in front of a transmission case 4 via a front axle case 5. And a rear axle case 7 is connected to the rear of the transmission case 4 so that the rear axle case 7 supports a rear wheel 8 for traveling. Then, a spare seedling mounting table 0 is attached to both sides of the hood 9 covering the engine 2 and the like, and
A driver's seat 13 is attached to the upper part of a vehicle body cover 12 on which an operator rides via a steering wheel 1, and a steering handle 14 is provided in front of the driver's seat 13 and at the rear of the hood 9.

In the figure, reference numeral 15 denotes a seedling mounting table 1 for 10-row planting.
6 and a plurality of planting claws 17 and the like. The planting case 20 is provided with a front-tilt type seedling mounting table 16 made of a synthetic resin having a front height and a low height through a lower rail 18 and a guide rail 19.
The rotary case 21 is slidably supported in the left and right directions, and a rotary case 21 that rotates at a constant speed in one direction is supported by the planting case 20. A pair of claw cases 22 are symmetrically positioned around the rotation axis of the rotary case 21. 22 is provided, and the planting claws 17 are attached to the tip of the claw case 22.
A seedling guide 40 is attached to the lower end of the seedling table main body 16a. A support frame 24 is provided on the front side of the planting case 20 via a rolling fulcrum shaft, and a link mechanism 27 including a top link 25 and a lower link 26 is provided.
The support frame 24 is connected to the rear side of the traveling vehicle 1 through
A raising and lowering cylinder 28 for raising and lowering the planting section 15 via the link mechanism 27 is connected to the lower link 26, and the front and rear wheels 6.8 are steered and moved, and at the same time, reciprocally slide right and left. From 16, seedlings of one strain are taken out by the planting claws 17, and the seedlings are continuously planted.

As shown in FIG. 2, a seedling removal plate 50 is provided at the lower end of the seedling mounting base body 16a.
And in the front-rear direction, the seedling outlets 50a
・ Is open. A seedling mat (not shown) is placed on the seedling mounting table 16a, and the lower end of the seedling mat is cut off by the planting claws 17 to perform the planting operation.

In the drawing, reference numeral 29 denotes a traveling speed change lever, 30 denotes an auxiliary speed change lever for planting up / down and work traveling speed change, 31 denotes a planting sensitivity adjusting lever, 32 denotes a main clutch pedal, and 33 and 33.
Is a left and right brake pedal, 34 is a center float for leveling, 35 is a side float for leveling, and 36 is a side fertilizer for 10 rows.

Next, the seedling guide will be described. As shown in FIGS. 1 and 5, the seedling guide 40 extends downward from the seedling outlet 50a. The seedling guide 40 includes a front guide 41, as shown in FIGS.
Side guides 42, 42, fittings 43 for connecting these guide members to the seedling removal plate 50, and fixing fittings 44 for fixing the guide members below. Then, around the seedling extraction port 50a of the seedling extraction plate 50,
Inlet fittings 43, a front guide 41, and side guides 42 are arranged in this order from above. The upper end of the guide member is fixed by screwing the rear end portion of the guide member from above through the seedling take-out plate 50 with the bolts 45 and 45, and also from below by the bolts 45. The front end is screwed and fixed to the seedling removal plate 50.

The fixture for the seedling guide of the present invention will be described. As shown in FIG. 7, the fixing bracket 44 is formed by forming a round bar into a substantially U-shape, and a central portion of a bridge portion 44b with respect to a parallel portion 44a forming the U-shape is:
A concave shape concave portion 44c is formed.

An insertion portion 42a is provided substantially below the outer surface of the side guide 42 in the front-rear direction.
A long hole 41a that is long in the vertical direction is opened in the left and right direction at the lower front part. The recess 44c of the fixing bracket 44
Are inserted so that they are located in the elongated holes 41a, and the fixing brackets 44 are inserted.
The parallel portions 44a, 44a of the
2a, the front guide 41, the side guide 42
・ 42 is connected and fixed.

The effect of providing the elongated hole 41a below the front guide 41 will be described. When the fixing member 44 is fixed to the side guides 42 by the parallel portions 44a, the position of the bridge portion 44b which is a part of the fixing member 44 is necessarily determined. At this time, assuming that only a hole having the same width as the outer diameter of the fixing bracket 44 is provided in the front guide 41, when the dimensions of the guide member are shifted,
It becomes difficult to attach the fixing fitting 44 or the fixing fitting 44 is stretched. By providing the elongated holes 41a and providing the degrees of freedom in the arrangement position of the bridge portions 44b in the vertical direction, the fixing brackets 44 are prevented from being distorted regardless of the accuracy of the guide members. The effect that the concave portion 44c at the center of the bridge portion 44b is formed in a concave shape is as follows. The recess 44c of the fixing bracket 44 is fitted in the front guide 41 by the elongated hole 41a. Since the concave portion 44c is not coaxial with the bridge portion 44b, the front guide 41 once fitted does not shift to the bridge portion 44b. With this configuration, the front guide 41
Can be prevented with a simple structure.

By attaching the fixing member 44 to the guide member as described above, the lower part of the guide member is fixed. As a result, the seedling guide 40 is
Are not integrally disposed but integrally formed to improve rigidity and vibration resistance.

The seedling guide 40 is shown in FIG.
As shown in FIG. 4, the tip of the planting nail 17 is formed in a claw shape along a locus drawn by the tip, the front guide 41 is disposed in front of the locus, and the side guide 42 is It is arranged behind the guide 41. The front guide 41 extends longer below the side guide 42.

With the above construction, the planting claws 17 for pinching and transporting a single seedling taken out from the seedling mat are guided by the front and side guide members, and are planted from the seedling outlet 50a to the field scene. A good posture can be ensured. In addition, since the rigidity and vibration resistance of the seedling guide 40 are maintained high, the guide members do not individually vibrate, thereby preventing an adverse effect on the planting posture.

Further, as described above, since the guide member is disposed so as to overlap below the seedling removal plate 50,
The seedling outlet 50a extends along the seedling mounting base body 16a, and the path through which the seedlings are nipped and transported is configured to be long. Further, the front guide 41 has a projection 41b formed by bending a flat plate upward at the upper front, and the height of the projection 41b is provided to be longer than the thickness of the opening metal fitting 43. Plate 50 and front guide 41
It prevents the roots of the seedlings from collecting between the upper part. With this configuration, even when components such as the seedling guide 40 are added, the roots do not accumulate and overflow on the path of the seedling to be conveyed, so that the planting posture of the seedling is not disturbed. .

[0019]

As described above, the present invention has the following advantages. That is, as described in claim 1, a seedling outlet is opened at the lower part of the seedling mounting table, and a front guide member and a pair of left and right side guide members are extended downward from the seedling outlet, and the front and the side are provided. Since the direction guide member is connected by a U-shaped fixing bracket, and a long hole for inserting the fixing bracket is provided below the front guide member,
The fixing bracket is given a degree of freedom in the vertical insertion position by the length of the long hole, and even if the fixing bracket is inserted into the front guide member and connected to the pair of left and right side guide members, the fixing bracket and each The guide member is not stretched and distorted.

According to a second aspect of the present invention, the place where the fixing bracket is inserted into the front guide member is formed in a concave shape.
The lateral displacement of the front guide member can be prevented with a simple structure.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing a seedling guide structure.

FIG. 4 is a side view showing a seedling guide.

FIG. 5 is a view taken in the direction of the arrow A in FIG.

FIG. 6 is a perspective view showing a seedling guide configuration.

FIG. 7 is a plan view showing a fixture according to the present invention.

[Explanation of symbols]

 40 seedling guide 41 front guide 41a long hole 41b projection 42 side guide 42a insertion part 43 intake fitting 44 fixing fitting 44a parallel part 44b bridge part 44c concave part 45 bolt 50 seedling extraction plate 50a seedling extraction port

Claims (2)

[Claims] 1. A seedling take-out opening is opened at a lower part of a seedling mounting table, and a front guide member and a pair of left and right side guide members are extended downward from the seedling take-out opening. A seedling guide structure for a rice transplanter, wherein the seedling guide structure is connected by a U-shaped fixing bracket, and provided with an elongated hole below the front guide member. 2. A place where the fixing bracket is inserted into the front guide member is formed in a concave shape.
The seedling guide structure of the rice transplanter described.