JPH069A - Seedling planting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] There are few assembly errors and excellent assembly workability.
Also provided is a seedling planting device having a frame structure capable of simplifying members. [Structure] A pipe-shaped main frame 7 extending in the lateral direction is provided, and a lateral drive shaft 17 for transmitting power from a power take-off shaft 8 on the traveling body side to a plurality of planting cases 9 is provided on the outer side of the main frame 7. Arrange the main frame 7
In addition to connecting and fixing each planting case 9 in a cantilevered manner,
The feed case 6 is connected and fixed to the main frame 7, and the lids 34 and 34 that close the openings at the left and right ends of the main frame 7 are respectively provided with the rotation fulcrums of the grounding stands 36 and 36 and the drawing markers 38 and 38. A fulcrum bracket is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention transmits power from a power take-off shaft on the side of a vehicle body to a lateral drive shaft via a feed case, and from this drive shaft through a plurality of plant cases, each plant case. The present invention relates to a seedling planting device configured to drive a plurality of planting mechanisms laterally arranged in parallel on the rear side.

[0002]

2. Description of the Related Art In the above-mentioned seedling planting apparatus, conventionally, for example, as disclosed in Japanese Utility Model Laid-Open No. 59-64614,
A plurality of planting cases are connected and connected to the left and right sides of the feed case via pipe-shaped relay frames, and the laterally-opposed drive shaft is provided inside the relay frames. In addition, support rods are extended from the side of the planting case on both left and right sides, the pivot bracket of the wire drawing marker is attached to the middle of the end of the support rod, and the grounding stand is attached to the end of the support rod. It has been a general structure to form a support portion.

[0003]

However, in the above-mentioned conventional structure, since the spacing between the planting strips is required to have a predetermined width, the spacing between the planting cases is widened and the relay frame must be long. In addition, the relay frame and the planted transmission case are detachably connected to each other in order to have a structure that can be shared by models having different numbers of planting threads and to facilitate assembly of the drive shaft. However, since there are a plurality of connection points arranged in a column along the lateral direction of the machine body, there is a drawback that connection errors at the time of assembly are accumulated and become large.
In addition, since the seedling planting device is provided with a heavy seedling stand, and this seedling stand moves back and forth from side to side, the laterally long connecting frame part as described above is bent and deformed by one side load. Although it is easy to do, as described above, since it is a frame having a joining structure, there is a certain limit to the frame strength and there is room for improvement. It is an object of the present invention to solve the above-mentioned inconveniences by a rational frame structure and to effectively utilize the improved frame structure to simplify the supporting structure for various working members.

[0004]

A feature of the present invention is that, in the seedling planting apparatus described at the beginning, a pipe-shaped main frame extending in the lateral direction is provided, and the lateral drive shaft is provided outside the main frame. The feed case is connected to and fixed to the main frame in a cantilevered manner, and the feed case is connected and fixed to the main frame to close openings at both left and right ends of the main frame. The pivotal fulcrum portion of the grounding stand and the fulcrum bracket of the drawing marker are connected to the lid body, respectively.

[0005]

[Operation] At the time of assembly, with respect to the main frame,
For each of them, it is only necessary to mechanically connect the feed case for power transmission from the aircraft side and each case with planting, and then install the drive shaft on the outer side of the main frame to configure the transmission system. it can. Therefore, since the main frame only mechanically connects and supports the feed case for power transmission from the machine body side and each planted case,
Even if the structure is integrated over the entire width without being restricted by the shape, problems such as assembly of the transmission system do not occur. or,
Even in the case of being integrally formed for a long time as described above, the weight can be reduced by forming the pipe shape. Moreover, as a result of forming the main frame in the shape of a pipe, the openings formed at the left and right ends of the main frame are used to prevent the entry of moisture and mud. Since the fulcrum bracket of the non-pullable marker is provided, the support portion of these working members can be configured only by attaching the lid body to the main frame.

[0006]

As a result, the main frame can be constructed as a strength member having sufficient supporting strength without any consideration of its shape and workability of assembling, and the assembling error is caused by the connecting portion of each case to the main frame. The structure of the main frame, which is a strength member, has been constructed. Since it can be used also as a support portion of the member, the member can be simplified and the assembling workability can be improved.

[0007]

Embodiments will be described below with reference to the drawings. Figure 1
The seedling planting device is shown in. This seedling planting device is a seedling stand 1 on which seedlings for planting are placed and reciprocally moved laterally with a constant stroke, and 6 planting mechanisms for taking out one seedling from the lower end of the seedling stand 1 and planting it. It is provided with a few ground leveling floats 3 and the like, and is connected to a rear portion of a riding type traveling machine body (not shown) via a link mechanism 4 so as to be able to move up and down and to freely roll left and right around a longitudinal axis Y. Next, the frame structure of this seedling planting device will be described. As shown in FIG. 2, a feed case 6 is attached to a pivotal boss portion 5 formed in the rear link 4a of the link mechanism 4 so as to be relatively rotatable around a longitudinal axis Y, and a square pipe is provided below the feed case 6. The main frame 7 in the shape is bolted and connected. The main frame 7 extends in the lateral direction over almost the entire width. Power is transmitted to the feed case 6 from the traveling machine body side via a power take-off shaft 8, and this power is transferred to the case 6
It is configured to supply to the lateral feed drive mechanism of the seedling placing table 1 and the above-mentioned planting mechanisms 2 installed inside. Then, on the rear surface side of the main frame 7, three planting cases 9 are connected by bolts in a cantilever manner facing rearward at predetermined intervals, and the left and right sides of the rear part of each planting case 9 are connected. The planting mechanism 2 is arranged on both sides. That is, the rotary case 11 is rotationally driven via the chain transmission mechanism 10 installed in each planted case 9, and the case 1 is rotated as the rotary case 11 rotates.
By means of a cam mechanism (not shown) provided inside 1, the planting mechanism 2 is configured such that the tips of the planting claws 12 attached to both ends move up and down while drawing a substantially elliptical locus. Then, the power of the power take-off shaft 8 is transmitted to a lateral drive shaft 17 located outside and rearward of the main frame 7 via a transmission mechanism (not shown) in the feed case 6. The drive shaft 17 extends leftward and rightward on the outer side of the rear side of the main frame 7 and is interlockingly connected to the front side sprocket 10a of each of the planting cases 9 so that torque can be transmitted. In this way, the power is branched and transmitted from the feed case 6 to each of the planting mechanisms 2 via the lateral drive shaft 17. The lids 34, 34 for closing the left and right openings of the main frame 7 are attached to the grounding stands 36, 3 respectively.
The rotation fulcrum portion 6 and the fulcrum brackets 39, 39 of the line drawing markers 38, 38 are continuously provided. More specifically, as shown in FIGS. 3 to 5, the L-shaped connecting members 40 are bolted to the inside of the opposite corners of the left and right ends of the main frame 7 from outside the front and rear side surfaces of the main frame 7. The plate-shaped lid 34 is fixed to the connecting member 40 by bolts, and a cylindrical boss 41 having a horizontal axis is integrally formed at the center of the lid 34. Then, a grounding stand 36 made of an L-shaped round pipe material is inserted into the tubular boss 41 from the lateral outside, and is positioned and fixed by a fixing bolt 42. Also, this grounding stand 36
Also in the posture toward the rear side, the fixing bolt 42
Thus, it is configured so that it can be positioned and fixed freely, and also serves as a protection member for the lower slide rail 35 of the seedling stand 1 in the planting work state. A fulcrum bracket 39 of the wire drawing marker 38 is integrally provided on the outer peripheral surface of the cylindrical boss 41 in an oblique posture, and a base end portion 38a of the wire drawing marker 38 is attached to a pivot boss portion 39a formed on the fulcrum bracket 39.
The wire drawing marker 38 pivotally supported by the spring 43 is urged to rotate in a protruding posture, and the stopper pin 44 formed on the base end portion 38a abuts the upper edge of the fulcrum bracket 39 and is fixed at a predetermined operating position. It is configured to be performed. In addition, it is configured to be retracted and stored through a wire 45 connected to the stopper pin 44 in association with the raising operation of the seedling planting device.

The main frame is not limited to the rectangular pipe shape, and may have any shape such as a round tube shape or a triangular tube shape.

It should be noted that although reference numerals are given in the claims for facilitating the comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of seedling planting device

FIG. 2 is a plan view showing a transmission system.

FIG. 3 is a side view of a lid mounting portion.

FIG. 4 is a rear view of the lid mounting portion.

FIG. 5 is an exploded perspective view of a lid mounting portion.

[Explanation of symbols]

 2 Planting mechanism 6 Feed case 7 Main frame 8 Power extraction shaft 9 Planting case 17 Sideways drive shaft 34 Lid body 36 Grounding stand 38 Wire drawing marker 39 Support point bracket

Claims (1)

[Claims] 1. Power is transmitted from a power take-off shaft (8) on the traveling body side to a lateral drive shaft (17) through a feed case (6), and the drive shaft (17) causes a plurality of planted cases (9). ) Is a seedling planting device configured to drive a plurality of planting mechanisms (2) laterally arranged in parallel on the rear side of each planting case (9) via A pipe-shaped main frame (7) is provided, the lateral drive shaft (17) is provided on the outer side of the main frame (7), and the planting cases (9) are provided in the main frame (7). ) In a cantilevered manner, and the feed case (6) is connected and fixed to the main frame (7) to close the openings at both left and right ends of the main frame (7). The grounding stands (36) and (3 6) The rotation fulcrum part and the drawing markers (38), the fulcrum brackets (39), (3) of the (38).
9) A seedling planting device that is connected in series.