JPH0313Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The purpose of this invention is to maintain the normal and constant planting posture of seedlings during rice planting work using a rice transplanter.

(B) Prior Art Conventionally, in the planting claws of a rice transplanter, a technique is known in which sloped surfaces are provided on the inside of the left and right planting claws arranged in parallel.

For example, as in Japanese Utility Model Application Publication No. 51-93320.

(c) Problems that the invention aims to solve When evaluating the performance of rice transplanters so far, the question has been whether or not they can fully function as a rice transplanter.

For example, whether there are any missing plants, whether it can be planted even in wet rice fields, whether it can be planted even in clay paddy fields, whether it has good straightness, and whether floating seedlings do not occur.

However, with the improvements that have been made so far, these performances have naturally been satisfied, and what is next required is true work performance, such as whether the planting posture after planting is good and consistent. It became like this.

In accordance with these demands, the present invention attempts to normalize and stabilize the planting posture.

A factor that affects the planting posture is the shape of the nails. If the shape of the planting nails is inappropriate, the nails may knock over, bend, or catch the seedlings, causing the leaves of the seedlings to fall. This not only damages the plants and stems, but also destroys the seedling pine and weakens the connection between the seedlings, making it impossible to grasp the seedlings, or causing the seedlings to become tattered and separate, causing floating seedlings.

In order to eliminate these drawbacks, the present invention changes the shape of the plate-shaped planting claws to securely hold the seedlings, cut the seedling pine without damaging the seedling, and transport it to the soil surface in the correct posture for planting. It is configured to do so.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

In the planting claw of the rice transplanter, which is composed of a pair of left and right plate-shaped claws, a protrusion of the inner inclined surface 3a is provided on the side of the seedling platform 1 of the opposing planting claws 3, and the seedling platform 1
A protrusion 3e is provided on the opposite side of the planting claw drive device 2 to prevent the movement of the stems and leaves.

Further, the width d of the protrusion 3e is configured to approximately c≧b+d in the relationship between the width b of the protrusion for the inner inclined surface 3a and the width c between the inner inclined surface 3a and the protrusion 3e.

Further, the amount of inward protrusion of the protrusion 3e is set to approximately the same height as the protrusion on the side of the seedling platform with the inner inclined surface 3a, or the protrusion amount is set back by a distance m.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

FIG. 1 is an overall side view of a walking type rice transplanter.

One lug wheel 6 is supported by a swing case 10, and floats 7, 7 are arranged on both sides of the lug wheel 6. Swing case 1 uses power from engine 8
The power is transmitted to the lug wheels 6 through a chain in the power transmission case 9, and the planting claw drive device 2 and the seedling stand drive case are driven by a power transmission shaft in the power transmission case 9.

The seedling platform 1 is moved left and right by a feed screw and a feed shaft in a seedling platform drive case, and the planting claws 3 are rotated in an oblong orbit by a planting claw drive device 2. 4 is a handle.

FIG. 2 is a side view showing the rotation locus of the planting claw 3 and the planting claw drive device 2.

Rotate the drive arm 14 with the claw drive shaft 14a,
Rotate the claw attachment arm 12. Claw mounting arm 1
2 is pivotally connected to the lower end of the driven arm 11, and since the driven arm 11 only performs reciprocating rotation, the claw mounting arm 1
The planting claw 3 attached to the tip of 2 draws an oblong orbit.

One of the pair of plate-shaped planting claws is operated by a cam inside the case 15 to open after planting is completed.

The planting claw 3 passes through the notch of the seedling take-out plate 5 on its long elliptical rotation trajectory when descending, cuts and holds the seedlings located on the notch, and plants them into the soil.

Figure 3 is a side view of the planted nail, Figure 4 is a sectional view of the conventional planted nail at the position A-A in Figure 3, and Figure 5 is the same conventional planted nail at the position B-B in Figure 3. FIG. 6 is a cross-sectional view of the planted nail in the case of the present invention at the position A-A in FIG. 3, and FIG. 7 is also a cross-sectional view at the position B-B in FIG. 9 is a plan view of the planted nail, FIG. 8 is a side view of the planted nail showing another embodiment, and FIG. 10 is a sectional view of the planted nail.
It is a CC sectional view of the figure.

Conventionally, planting claws were formed as shown in FIGS. 4 and 5, and an inner inclined surface 3a that was inclined inward from the surface on the seedling stand side was not provided.

Therefore, the stems and leaves of the seedling Y tend to be pushed by the tips of the planting nails, and when the planting nails are driven into the seedling pine, the stems and leaves of the seedling Y do not fit smoothly between the nails.
As shown in Figure 28, which shows problems caused by conventional planting nails, the stems and leaves are pushed down without sliding down the slope, resulting in damage such as broken stems, and as shown in Figure 28, the stems and leaves are firmly held in the nails. In some cases, the seedlings were planted in their fallen state without being properly cleaned, which hindered the growth of the seedlings.

In contrast, in the present invention, as shown in FIGS. 6 to 10, an inner inclined surface 3a is provided which is inclined inward from the surface of the opposing planting claws 3L and 3R on the seedling stand side. .

As a result, as shown in Fig. 7, the stems and leaves of the seedling Y smoothly enter between the planting claws 3 along the inner inclined surface 3a, and are not broken, bent, or damaged by the pushing force of the planting claws. Things were gone.

Fig. 11 is a side view of the planted nail of the present invention, Fig. 12 is a plan sectional view, Fig. 13 is also a front view, and Fig. 14 is a side view of the planted nail of the present invention.
The figure is a drawing when the seedling pine Z is driven into the seedling pine Z using the planting nails shown in Fig. 11, Fig. 15 is a drawing when the seedling pine Z is cut, Fig. 16 is the plan view of Fig. 11, and Fig. 17 is the drawing when the seedling pine Z is cut. Drawing showing another example of a planted nail, No. 18
The figures are an enlarged cross-sectional view taken along the line E--E in FIG. 17, and FIG. 19 is an enlarged cross-sectional view taken along the line D--D in FIG. 17.

As shown in FIG. 25, conventional planting nails are not provided with an inner inclined surface 3a, and also have a right-angled cutting blade 3.
Instead of c entering at right angles to the seedling Z,
Since the angle formed by the right-angled cutting blade 3c and the tip protruding blade part 3f was configured to be an acute angle so that the seedling was driven in gradually at an angle, the seedling was grasped in a state tilted to the planting claw. The posture when planting was also tilted.

In this embodiment, an inner inclined surface 3a is provided, and a sharp tip inclined portion 3b extending from the inner inclined surface 3a is provided at the tip, and a tip protruding blade is provided on the side of the planting nail drive device 2 of the sharp tip inclined portion 3b. A portion 3f is provided.

The tip protruding blade part 3f and a right-angled cutting blade 3c for cutting seedling pine are arranged in series, and the angle formed by the two forms an obtuse blade part.

Due to the obtuse-angled blade section constituted by the tip protruding blade section 3f and the right-angled cutting blade 3c, the section of the right-angled cutting blade 3c is made to contact the upper surface of the seedling pine at a substantially right angle.

With this configuration, the inner inclined surface 3a is provided on the seedling stand side, and the sharp inclined portion 3b at the tip allows the planting claws to gradually enter the stems and leaves without pushing them, and as shown in FIG. It is pushed in along the tip protruding blade part 3f, and when the posture is stabilized as shown in Fig. 15, it is firmly held on the cutting blade 3c while being cut directly downward at right angles and conveyed.
Seedling blocks are also planted vertically into the soil.

In Fig. 20, an inclined surface 3a is provided and a protrusion 3e is provided.
21 is an enlarged sectional view taken along the line H-H of FIG. 20, and FIG. 22 is an enlarged cross-sectional view of FIG.
The GG section enlarged view of the figure, Figures 23 and 24 are G
Figures 25, 26, 27, and 28 showing other embodiments of the -G cross section are diagrams showing the cutting and planting state of seedlings using conventional planting claws.

As shown in FIGS. 25 and 26, conventionally, the projections 3e that prevent the movement of the seedlings were not provided on the opposite side of the planting claw from the seedling mounting stand, so the holding of the stems and leaves was unstable. The seedlings tended to fall toward the planting claw drive device and fell off during transportation, or the holding posture collapsed, resulting in the planting posture being disorganized.

In this embodiment, in order to prevent the stems and leaves that have smoothly entered between the planting claws along the inner inclined surface 3a from falling toward the planting claw drive device 2 side, the planting claws are connected to the seedling platform 1 side. A protrusion 3e is provided on the opposite side, that is, on the side of the planting claw drive device 2, for preventing the movement of the stems and leaves.
In Fig. 20, the width d of the protrusion 3e is determined by setting c≧b+d so that the width c of the central foliage holding space formed between the inner inclined surface 3a and the protrusion 3e does not become too small, with the width of the inner inclined surface 3a being b. It is said that the amount of

The protrusion amount of the protrusion 3e should be the same height as the protrusion on the side of the seedling stand with the inner inclined surface 3a, as shown in FIG.
It is effective to make the protrusion 3e recessed by a distance m as shown in FIG.

Furthermore, as shown in FIG. 24, it is also effective to construct the protrusion by a protrusion 3d formed by baking rubber to provide elasticity, thereby reducing damage.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, there is an inner inclined surface 3 on the side of the seedling stand 1 of the planting claw 3.
By providing a, the weeding performance of separating the stems and leaves of seedlings was improved, and the number of damaged seedlings such as broken stems could be reduced.

Secondly, between the planting claws 3, a projection 3e is provided on the side of the planting claw drive device 2, and the inner inclined surface 3a and the projection 3
Since the space between e was used as the space for holding the Keiyo leaves, it was possible to maintain the attitude of the Keiyo leaves in the best condition after they were cut from the seedling pine.

Third, the width of the protrusion 3e is set to b, which is the width of the inner inclined surface 3a, and the width c of the central stem and leaf holding space formed between the inner inclined surface 3a and the protrusion 3e is set to be approximately c≧b+d so that the width c of the central stem and leaf holding space does not become too small. Therefore, the Keiyo held in the Keiyo-yo holding space will not be bent or bent due to pressure.

Fourth, the protrusion amount of the protrusion 3e should be the same height as the protrusion on the side of the seedling stand with the inner inclined surface 3a as shown in Fig. 23, or the protrusion should be retracted by a distance m as shown in Fig. 22. Since the structure has a protrusion of 3e, the seedlings will not be disturbed during transportation, and when separating them into the soil,
It was possible to create a planting claw 3 that has good separation of seedlings.

As a result of the above, the holding posture of the seedlings is improved, so that the posture after planting becomes upright and there is no unevenness.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of the walking rice transplanter, Fig. 2 is a side view showing the rotation locus of the planting claw 3 and the planting claw drive device, Fig. 3 is a side view of the planting claw, and Fig. 4 is a side view of the planting claw. FIG. 5 is an enlarged cross-sectional view of the conventional implanted nail at the position B-B in FIG. 3, and FIG. FIG. 7 is a sectional view of the implanted nail at the position A-A in FIG. 3, FIG. 7 is a sectional view of the implanted nail taken along the line BB in FIG. The side view of the planted nail, Figure 9 is the top view of the planted nail in Figure 8, and the first
Figure 0 is a sectional view taken along the line C-C in Figure 8, and Figure 11 is a sectional view taken along the line C-C in Figure 8, and Figure 11 shows a sloped surface 3a and a relatively long sharp sloped part 3b at the tip, and a shear cutting blade 3c for cutting the seedling pine on the upper surface of the seedling pine. Fig. 12 is a side view of the planting nail that is almost perpendicular to the figure;
Figure 13 is the same front view, Figure 14 is a drawing of the seedling pine being driven in with the planting nails in Figure 11, and Figure 15 is the same as the front view.
16 is a plan view of FIG. 11, FIG. 17 is a drawing showing another embodiment of the planting claw shown in FIG. 11, and FIG. 18 is a drawing showing E-- FIG. 19 is an enlarged cross-sectional view taken along the line D-D in FIG. 17, and FIG. 20 is a drawing showing an embodiment of a planting nail provided with an inner inclined surface 3a and a protrusion 3e.
Figure 1 is an enlarged cross-sectional view taken along line H-H in Figure 20, Figure 22 is an enlarged cross-sectional view taken along line G-G in Figure 20, Figures 23 and 24.
The figure is a drawing showing another example of the GG cross section, No. 25.
26, 27, and 28 are drawings showing the cutting and planting state of seedlings using conventional planting claws. Y... Seedling, Z... Seedling mat, 1... Seedling stand, 2
... Seedling stand drive device, 3 ... Planting claw, 3L, 3
R...Pair of planting nails, 3a...Slanted surface, 3b...
Sharp tip portion, 3c... Shearing cutting blade, 3d, 3e...
...Protrusion, 3f... Tip protruding blade part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a planting claw of a rice transplanter composed of a pair of left and right plate-shaped claws, the seedling mounting platform 1 of the opposing planting claws 3
A rice transplanter characterized in that a protrusion of an inner inclined surface 3a is provided on the side, and a protrusion 3e for preventing the movement of stems and leaves is provided on the side of the planting claw drive device 2, which is the side opposite to the seedling platform 1. Planted nails. (2) Protrusion 3 mentioned in paragraph 1 of the claims for utility model registration
A rice transplanter characterized in that the width d of e is configured to approximately c≧b+d in the relationship between the width b of the protrusion for the inner slope 3a and the width c between the inner slope 3a and the projection 3e. Planted nails. (3) Projection 3 mentioned in Paragraph 1 of Claims for Utility Model Registration
A planting claw of a rice transplanter characterized in that the amount of inward protrusion of e is approximately the same height as the protrusion on the side of the seedling platform with the inner inclined surface 3a, or the amount of protrusion is retracted by a distance m. .