JPH0715427Y2 - Rice transplanter - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a rice transplanter capable of spraying fertilizers and chemicals such as herbicides at the same time when planting seedlings.

[Conventional technology]

As the rice transplanter, for example, as shown in Japanese Utility Model Laid-Open No. Sho 63-191112, a support frame extending rearward is provided at the upper part of the fertilizer application attached to the planting case of the seedling planting device, and the rearward supporting device is provided. It is known that the frame is configured to support the drug spraying device.

[Problems to be solved by the device]

According to the above-mentioned conventional configuration, since the rearward supporting frame supporting the chemical spraying device is located at the upper part of the fertilizer applying device, the rearward supporting frame tends to interfere with the work when adjusting the fertilizer applying device. Met.

The present invention has been made in view of such a point, and an object thereof is to improve the support structure of the chemical spraying device so that the fertilizer applying device can be easily adjusted.

[Means for Solving the Problems]

The feature of the present invention is that a seedling planting device is connected to the rear part of the traveling machine body so as to be able to move up and down, a fertilizer applying device is attached to the rear part of the seedling planting device, and is fed to the rear of the fertilizer applying device by the operation of a feeding member. A drug spraying device provided with a rotating body for diffusing the drug at high speed and a guide member for guiding the drug diffused by the rotating body over the planting width, and the drug spraying device is used as a seedling planting device. Is supported by supporting frames extending from the planting cases at the left and right ends of the fertilizer application device, and further, the guide member of the chemical spraying device has an upper end lower than the feeding portion of the fertilizer application device and a lower end of the guide member of the seedling planting device. It is located at a position higher than the attached pawl drive mechanism, and its action and effect are as follows.

[Action]

I. Nothing is connected back and forth between the upper part of the fertilizer applicator and the upper part of the drug spraying device, and the drug spraying device is directly supported by the support member extending from the strong planting case. Become.

B. Since the medicine diffused by the rotator is guided by the guide member to the planting width, the spraying width can be easily defined reliably.

C. Since the upper part of the guide member is located below the feeding part of the fertilizer application device, it is likely to interfere with the adjusting operation of the fertilizer application device.

D. Since the lower end of the guide member is located above the planting claw driving mechanism of the seedling planting device, it is easy to visually recognize the planting claw driving mechanism from the outside.

[Advantages of the Invention] Since there is nothing connected back and forth between the upper part of the fertilizer application and the upper part of the chemical spraying device, it is easy to adjust the feeding part of the fertilizer application. Further, since the support member is provided from the strong planting case, the deformation can be minimized even if the medicine spraying device accidentally hits the ridge or the like.

Since the spraying agent is guided to the planting width by the guide member, the spraying width is easily defined with certainty, and it is possible to prevent the agent from reaching the adjacent work area where the next step travels. Therefore, at the time of planting in the next step, it is possible to avoid the occurrence of a situation in which the sprayed chemicals adhere to the roots of the planted seedlings to cause chemical damage.

Since the upper part of the guide member is located below the feeding part of the fertilizer application device, it is easy to adjust the fertilizer application device regardless of the presence of the guide member.

Since the lower end of the guide member is located above the planting claw drive mechanism of the seedling planting device, an assistant worker who monitors the planting work on the ridges in the field can easily confirm the planting state, and the planting can be done empty. If it occurs, it will be easy to find it early.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 7 shows a rice transplanter according to the present invention. This rice transplanter has a hydraulic cylinder (c
y) The seedling planting device (3) is movably connected via a link mechanism (2) which is driven and swung by y), and a fertilizer applying device (4) is provided at the rear part of the seedling planting device (3). A drug spraying device (5) for spraying a powdery drug such as a herbicide to the field is arranged further behind (4).

As shown in FIGS. 1 to 3, the seedling planting device (3) has a planting transmission case (7) also serving as a frame for supporting the seedling table (6) so as to be reciprocally movable to the left and right. The planting claw drive mechanism (9) is arranged on both lateral sides of the rear side of each of the three planting cases (8) integrally extended rearward from the transmission case (7) to form a six-row planting type. I am doing it. Each of the planting claw driving mechanisms (9) has a tip of the planting claws (11), (11) on both end portions of a rotating case (10) that is driven to rotate around a center of a horizontal axis (X ₁ ). It is configured to plant seedlings in the field while drawing an elliptical locus.

The drug spraying device (5) is provided with a drug storage hopper (13) at the upper center, and a feeding mechanism (14) for feeding a predetermined amount of drug below the hopper (13). In order to diffuse and release the drug over substantially the entire planting width, it is provided with a substantially box-shaped guide member (15) that extends over substantially the entire width and opens downward. A working space (S) is secured between the medicine spraying device (5) and the fertilizer applying device (4). That is, the rear wall (4b) of the fertilizer feeding part (4a) of the fertilizer applicator (4) is provided so as to be openable and closable for maintenance such as clearing clogging of fertilizer, and by forming the space (S). It is designed to facilitate maintenance work.

The feeding mechanism (14) will be described. As shown in FIGS. 4 to 6, a large number of drug passage through holes (17) are provided below the hopper (13) at a predetermined pitch along the circumferential direction.
A rotary disk type feeding member (18) having a structure is disposed, and the feeding member (18) is configured to intermittently slide and rotate the upper surface of the bottom plate (20) around the vertical axis (Y). There is. Further, a medicine supply port (19) is formed at the lower end of the hopper (13) at a position corresponding to the rotation locus of the through hole (17), and a feeding member (18) is fed to the medicine supply port (19). A drop guide port (21) is formed in the bottom plate (20) at a position displaced in the circumferential direction of the above, and below the rotation trajectory of the through hole (17). Thus, the medicine in the hopper (13) is configured to be dispensed by a predetermined amount by intermittent rotation of the dispensing member (18).

Then, below the drop guide port (21), there is provided a rotating disc (33) as a rotating body which is driven and rotated at a high speed around an axis of a vertical axis by an electric motor (32), and the rotating disc (33) is provided. A rotary vane (34) is provided upright on the upper surface of the fan along the radial direction. The dropped medicine is splashed off by the rotary blade (34), guided by the inner surface of the guide member (15), and spread over the entire planting width in the field.

The feeding member (18) is configured to intermittently rotate every pitch in synchronization with the rotation of the rotating case (10).
That is, the limit switch (SW) is attached to the vicinity of the rotating case (10) of the support frame (16) which is fixed and extends rearward and upward from the rear part of the planting case (8) to support the drug spraying device (5). The limit switch (SW) contact piece (22) contacts the rotating case (10) and outputs a signal corresponding to the number of rotations, and in accordance with this output signal, one pitch equivalent amount of the feeding member (18). An electric motor (23) that intermittently rotates is provided below the payout member (18).

Above the planting claw drive mechanism (9), it is possible to prevent scattered mud at the time of planting from scattering toward the fertilizer application device (4), and from the fertilizer application device (4) to the planting claw drive mechanism (9). A cover member (24) for preventing fertilizer powder from falling toward the front and back is slidably attached to the support frame (1).
6) is bent and formed in a substantially L-shape to allow the rearward sliding of the cover member (24). Further, the support frame (16) extends rearward and upward from the planting cases (8) at the left and right ends, respectively, and stably supports the drug spraying device (5). As shown in FIG. 8, the chemical spraying device (5) is attached to the rear of the seedling planting device (3) and sprays a chemical such as a herbicide along with the seedling planting work, and the side of the machine. So that it can be projected outward and can be switched to a state in which a chemical such as an insecticide is sprayed from above the nursery box (35),
The support frame (16) on one side is swingably supported.

Then, the chemical spraying device (5) is, when mounted on the rear side of the seedling planting device (3), held in a lower working position, and is capable of retracting and moving upward from the working position (A). ) Through a seedling planting device (3). That is, the support frame (16) and the brackets (25) and (25) fixed to the front wall of the guide member (15) are pivotally connected to each other by a pair of upper and lower links (26) and (26) to form four continuous links. A link mechanism (A) having a link structure is configured. Then, adjust bolt (26
a) contacts the upper link (26) to control the lower limit position of the drug spraying device (5) to maintain the working posture, and at the time of descending the seedling planting device (3), the drug spraying device (5) When the lower part of) comes into contact with the ridge, it can be retracted relatively upward, so damage can be prevented. Further, in the medicine spraying device (5), the upper end of the guide member (15) is below the feeding part (4a) of the fertilizer applicator (4) in a state where the drug spraying device (5) is positioned and held in the lower position. The lower end is set and arranged so as to be located above the planting claw driving mechanism (9) of the seedling planting device (3). Then, the spraying device (5) is biased downward by a spring (12) for preventing the spraying device (5) from oscillating up and down due to the vibration accompanying the traveling of the machine body (1).

[Another embodiment]

The linkage mechanism (A) may be configured to be vertically slidable instead of the above-described four-link mechanism.

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 a rice transplanter according to the present invention. Fig. 1 is a side view of the rear part of the rice transplanter, Fig. 2 is a rear view, and Fig. 3 is a plan view.
FIG. 4 is a vertical side view of the chemical spraying device, FIG. 5 is a sectional view taken along line VV of FIG. 4, FIG. 6 is a sectional view taken along line VI-VI of FIG. 4, and FIG. 7 is the entire rice transplanter. FIG. 8 is a side view and FIG. 8 is a plan view showing another usage pattern of the drug spraying device. (1) ...... Traveling vehicle, (3) …… Seedling planting device, (4)…
… Fertilizer application, (4a) …… Feeding unit, (5) …… Medication spraying device, (8) …… Planting case, (9) …… Plant nail drive mechanism, (15) …… Guide member, (16 ) …… Support frame, (18) …… Feeding member, (33) …… Rotating body.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yutaka Takao 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Sakai Works (72) Kozo Tomita 739-6 Yamate, Yoshida Town, Takada-gun, Hiroshima Prefecture Company Keibunsha Mfg. Co., Ltd. (72) Creator Kazuyuki Hayase 739-6 Yamate, Yoshida-cho, Takada-gun, Hiroshima Prefecture Company Keibunsha Mfg. Co., Ltd. (72) Go Kadde 739-6 Yamate, Yoshida-cho, Takada-gun, Hiroshima Prefecture Company Keibunsha Factory

Claims (1)

[Scope of utility model registration request] 1. A fertilizer application device (3) is connected to a rear part of a traveling machine body (1) so as to be able to move up and down, and a fertilizer application device (4) is attached to the rear part of the plant application device (3). Behind (4),
A rotating body (33) for diffusing the medicine delivered by the operation of the delivering member (18) at a high speed, and a guide member (15) for guiding the medicine diffused by the rotating body (33) over the planting width. The drug spraying device (5) provided is provided, and the drug spraying device (5) is extended from the planting cases (8), (8) at the left and right ends of the seedling planting device (3), respectively. ), (16), and further, the guide member (15) of the chemical spraying device (5) has a top end lower than the feeding part (4a) of the fertilizer application device (4) and a bottom end. A rice transplanter that is positioned and arranged above the planting claw drive mechanism (9) of the planting device (3).