JPH073858Y2 - Rice transplanter's groover structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a rice transplanter equipped with a fertilizer applicator that sprays fertilizer along planted seedlings, and is characterized by the structure of a grooving device. Regarding

[Conventional technology]

In the riding type rice transplanter, which is one of the rice transplanters, as shown in FIGS. 6 and 3, for maintaining the posture of the seedling planting device (7) and for leveling, or for pairing the seedling planting device (7). A ground float (6) is attached to the seedling planting device (7) so that it can be moved up and down to detect the height of the paddy field, and a ditcher (12) that digs a groove for embedding fertilizer in the paddy field as the machine runs. Is fixed to the ground float (6). Then, the feeding section (1) of the fertilizer application device (9) supported and fixed to the upper part of the seedling planting device (7).
The hose (16) extended downward from 1) is connected to the grooving device (12) via an elastic tube member (15) such as a bellows made of rubber, and the feeding section ( There is a structure in which the fertilizer fed from 11) is fed into the ditch that the grooving device (12) digs.

In this configuration, the fixed side hose (16) and the grooving device (1
The reason for connecting 2) with the telescopic cylinder member (15) is so that the vertical movement of the grounding float (6) can be performed without hindrance.

[Problems to be solved by the device]

In the grooving device (12) as described above, as shown in FIG. 6, the clogging sensor (17) for detecting the retention and clogging of fertilizer in the grooving device (12) is installed in the grooving device (12). Although it is projected on the inner surface, when the ground float (6) and the grooving device (12) move up and down with respect to the fixed side hose (16) as described above,
The upper end (17b) of the clogging sensor (17) and the telescopic tube member (1
There is a risk that the lower end (16a) of the hose (16) may get stuck in the gap with the 5).

In such a state, not only the vertical movement of the grounding float is hindered, but also the telescopic cylinder member, the clogging sensor, the hose, etc. may be damaged.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to obtain a structure in which the hose does not stick into the gap between the telescopic cylinder member and the clogging sensor.

[Means for Solving the Problems]

The feature of the present invention is that in the groover structure of the rice transplanter as described above, the slanted convex portion that is located at substantially the same position as the inner side of the groover of the clogging sensor or that protrudes from this end to the inside of the groover Is provided on the inner surface of the telescopic cylinder member in a state of being continuously provided on the upper surface of the clogging sensor, and its operation and effect are as follows.

[Action]

With the above-described structure, as shown in FIG. 1, even if the ground float (6) and the grooving device (12) move up and down largely, the lower end (16a) of the hose (16) has an inclined projection (15a). ), It cannot be inserted between the clogging sensor (17) and the telescopic cylinder member (15).

[Effect of device]

As described above, it is possible to prevent a phenomenon in which the lower end of the hose enters the gap between the telescopic cylinder member and the clogging sensor due to the vertical movement of the ground float and the grooving device. It has become possible to prevent the gap and damage to each part.

In addition, since it is an inclined convex part that has an especially large stepless inclined surface, the lower end of the hose is guided smoothly when the lower end of the hose contacts the inclined convex part, so even at the time of contact the ground float There is no particular problem with vertical movement.

〔Example〕

A riding type rice transplanter, which is one of the embodiments of the present invention, will be described below with reference to the drawings.

As shown in FIG. 3, the planted mission case (1) is rotatably driven around the horizontal axis (P ₁ ) at the rear of the planted case (2).
And a pair of planting arms (3) are supported at both ends of the planting case (2), and a seedling stand (4) is reciprocally slidably driven left and right on the upper part of the planting mission case (1). It is configured to be freely supported, and the two planting arms (3) alternately cut out the seedlings from the seedling stand (4) and plant them on the rice field (G). Then, as shown in FIGS. 3 and 2, the support arm (5) extending rearward from the lower surface of the planted mission case (1) is vertically moved around the horizontal axis (P ₂ ) at the rear end thereof. The grounding float (6) is swingably attached to the seedling planting device (7).

A quadruple link mechanism (8) that can be vertically driven is extended from the machine body (not shown), the seedling planting device (7) is connected to the quadruple link mechanism (8), and the ground float (6 )
The vertical movement of the front part is transmitted to the fuselage side via the wire (24). With the above structure, the grounding float (6) maintains a constant posture with respect to the seedling planting device (7), that is, the seedling planting device (7) is maintained at a constant height above the rice field (G). As described above, the whole seedling planting device (7) is vertically moved up and down through the four-link mechanism (8). As a result, the planting depth of the seedlings by the planting arm (3) is kept constant.

Next, the structures of the fertilizer applicator (9) and the grooving device (12) will be described in detail. As shown in FIGS. 1, 2, and 3, the fertilizer applicator (9)
Is composed of a fertilizer storage tank (10) and a feeding section (11) for intermittently feeding the fertilizer in the tank (10), and a support extended upward from the planting mission case (1). It is connected and fixed to the frame (13).

On the other hand, the grooving device (12) has a structure in which a metal plate is bent into a U shape, and the ground float is provided via a grooving plate (14) having substantially the same width as the grooving device (12). It is connected and fixed to (6). A rubber bellows-shaped telescopic cylinder member (15) is attached to the upper part of the groove making device (12),
Vinyl hose (1) extended from the feeding section (11)
6) is inserted in the telescopic tube member (15).

In the grooving device (12), the water from the rice field (G) may cause the fertilizer to adhere and become clogged, so the clogging sensor (17) for detecting such a phenomenon as shown in FIG. It is installed. This is because when fertilizer adheres to the clogging sensor (17) and the inner surface of the grooving device (12), the voltage value applied to the clogging sensor (17) changes due to a so-called short state. The change in voltage is detected and an alarm is issued.

Then, as shown in FIG. 1, in the portion of the telescopic tube member (15) connected to the upper surface of the clogging sensor (17), the inclined convex portion (15a) having a triangular shape in a side view is formed on the telescopic tube member (15). It is integrally molded. Then, it is inclined at the same position as the inside edge (17a) of the clogging sensor (17) or slightly inward from the edge (17a) toward the inside of the groover (right side of the paper). The part (15a) is molded.

Further, in the ground float (6), as shown in FIGS. 2 and 3, the soil cover plate that fills the trench dug in the rice field (G) with the grooving device (12) and the grooving plate (14). (18) is attached. This soil cover plate (18) has a triangular shape in plan view like a bent plate material, and is attached to the ground float (6) around the vertical axis (P ₃ ) so as to be swingable within a set angle, and to be bolted. The nut (19) can be fixed in any position.

[Another embodiment]

In the above-described embodiment, the inclined convex portion (15a) is provided with the telescopic cylinder member (15).
Although the structure is integrally formed with, the separate inclined convex portion may be attached so as to be in close contact with a predetermined inner surface of the telescopic cylinder member (15).

Further, as shown in FIG. 4, although the soil cover plate (18) is shown in FIG. 4, a control sensitivity changing lever for raising and lowering control for raising and lowering the seedling planting device (7) so as to keep it at a constant height above the rice field (G) ( 20) and the soil cover plate (18) are connected by a wire (21) and the control sensitivity changing lever (20) is operated to the insensitive side (corresponding to the hard condition of the mud on the surface (G)). ) May project to the left and right.

Further, as shown in FIG. 5, a mud hardness sensor (22) that automatically detects the hardness of the mud on the rice field (G) is attached, and the mud hardness sensor (22) and the soil cover plate (18) are attached. Wire (2
May be connected in 3). The mud hardness sensor (22) is urged downward by a spring (not shown) or the like. If the mud is hard, the resistance from the mud causes the mud hardness sensor (22) to rock upward. The wire (23) is pulled to cause the soil cover plate (18) to project right and left.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of the grooving device structure of a rice transplanter according to the present invention. Fig. 1 is a vertical sectional side view showing the structure inside the grooving device, and Fig. 2 shows the structure of a grounding float, a grooving device, etc. A plan view, FIG. 3 is an overall side view of a seedling planting device and a fertilizer application device, FIG. 4 is a plan view showing a first alternative embodiment for a soil cover plate, and FIG. 5 is a second alternative embodiment for a soil cover plate. A plan view and FIG. 6 are longitudinal side views of a groove making device showing a conventional structure. (6) …… Ground float, (7) …… Seedling planting device,
(9) …… Fertilizer, (11) …… Feeding unit, (12) ……
Groover, (15) …… Expandable tube member, (15a) …… Inclined convex part, (16) …… Hose, (17) …… Clogging sensor,
(17a) ... Edge of clogging sensor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuya Nakao 64 Ishizukitacho, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Inventor Hiroaki Kitai 64, Ishizukitamachi, Sakai City, Osaka Kubota Ironworks Co Company Sakai Factory (72) Inventor Susumu Yamamoto 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Sakai Factory

Claims (1)

[Scope of utility model registration request] 1. A grounding float (6), to which a grooving device (12) is fixed, is vertically movably attached to a seedling planting device (7), and a fertilizer applicator ( 9) is fixed, and the hose (16) extended below the feeding part (11) of the fertilizer applicator (9) is attached to the telescopic cylinder member (15) attached to the upper part of the grooving device (12). ) Is inserted and connected, and a clogging sensor (17) is projectingly provided on the inner surface of the grooving device (12). An inclined convex portion (15b) that is located at substantially the same position as the inner side edge (17a) or that protrudes inward from the end side (17a) toward the inside of the grooving device is connected to the upper surface of the clogging sensor (17). Expandable tube member (15)
The rice transplanter's grooving structure on the inner surface of the plant.