JPH0454739Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an auxiliary seedling support frame structure in a walk-behind rice transplanter in which an auxiliary seedling support is formed above the body frame.

[Problems to be solved by the prior art and the invention] Generally, this type of walking-type rice transplanter has an auxiliary seedling platform installed above the body frame with an engine installed in the front, and auxiliary seedlings are placed there. There are some that allow planting work to be done while the plant is placed on the ground. However, as shown in Japanese Utility Model Application Publication No. 59-12014, for example, this auxiliary seedling mounting stand had an integral framework including the part on which the auxiliary seedlings were directly placed, so it was troublesome to assemble it. However, if the auxiliary seedling platform is placed above the running wheels so as not to significantly degrade workability and do not affect the balance of the machine, the auxiliary seedling platform may be installed in the rear planting area. The disadvantage is that it is difficult to replenish seedlings to the seedling stand because it is far away from the seedling stand.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was created with the aim of providing an auxiliary seedling support frame structure for a walk-behind rice transplanter that can eliminate these drawbacks. In a walk-behind rice transplanter having an auxiliary seedling platform placed above a body frame with an engine installed in the front, the frame of the auxiliary seedling platform is integrally connected to a split frame using a connecting device. In addition to this structure, the connecting tool is characterized in that a guide portion is formed on the connecting tool to slidably guide the frame rod on which the auxiliary seedling is placed in the front-back direction.

With this configuration, the present invention makes it easy to assemble the auxiliary seedling stand, and also allows the auxiliary seedlings placed on the auxiliary seedling stand to be moved backwards, making it easier to supply seedlings. This is what I did.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, reference numeral 1 denotes a traveling body of a walking rice transplanter, and an engine 2 is provided in front of a body frame 1a of the traveling body 1, and the power from the engine 2 is transmitted to a transmission case 3.
Via the planting frame 4a on the side of the planting section 4, which is connected to the rear of the fuselage frame via the power transmission mechanism in the fuselage frame 1a, and the power transmission mechanism in the swing cases 5 on both left and right sides of the fuselage. The fact that the power is transmitted to the running wheels 6 and the like is the same as before. Furthermore, in the figure, 7 is a float, 8 is a seedling stand, and 9 is a driving handle.

10 is a bonnet, and the bonnet 10
has a short length in the longitudinal direction to cover the engine 2 and transmission case 3 in front of the fuselage frame 1a, and its front portion is pivotally connected to the two engines. That is, bonnet 1
A mounting plate 11a, which also serves as a reflector to which the headlight 11 is fixed, is integrally fixed to the front end of the 0 with bolts 11b.
A substantially square-shaped bracket 11c is integrally fixed to the lower side of the bracket. On the other hand, a support plate 12 is integrally fixed to the front part of the engine 2 by bolts 12a, and a support tube 12b is provided at the front end of the support plate 12. Then, the legs of the bracket 11c are fitted to the left and right ends of the support tube 12b, and the bracket 11c is pivotally connected with the pin shaft 13, so that the bonnet 10 is pivotally supported to be able to swing in the vertical direction, and covers the engine section. It is designed to be able to freely transform between a closed position and an open position in which it swings forward to expose the engine section. In addition, 14 is a center marker provided on the front upper surface of the bonnet 10 so as to be freely raised and lowered, 15 is a pivot portion of the marker 14, 16 is a fuel tank, and 17 is a hydraulic cylinder for controlling the elevation of the running wheels 6.

Reference numeral 18 denotes a rear cover that covers the fuselage frame 1a on the rear side of the bonnet 10 at a lower level than the bonnet 10, and the rear cover 18 is integrally attached to the fuselage frame 1a side. That is, the rear bracket 17b of the hydraulic cylinder 17 is integrally fixed to the rear part of the transmission case 3 with bolts 17a, and the rear cover 18 is fixed to the mounting plate 19 which is integrally fixed thereto.
The front part of is tightly secured using bolts 19a.
On the other hand, the rear end portions of a pair of left and right guide rails 21 that guide a balance rod 20 provided at the tip of the rod of the hydraulic cylinder 17 are supported on a support plate 21a fixed at a proper position at the rear of the aircraft frame 1a. , the appropriate position of this guide rail 21 (the balance rod 2
(of course, the position is such that it does not interfere with the operation of the 0).A plate 22a is integrally supported between the two. The legs of the mounting plate 22, which has a substantially inverted shape, are fastened to the plate 22a with bolts 22b. The upper surface of the intermediate portion of the rear cover 18 is tightly secured to the upper surface of the mounting plate 22 with bolts 22d, sandwiching the plate body 22c. Furthermore, a frame 23 is provided at the rear end of the plate body 22c.
The supporting plate 23a, which is integrally fixed to the frame 23, has a slightly raised stepped portion 18a on the rear upper surface of the rear cover 18.
The left and right side portions of the rear cover 18 are integrally fixed with bolts 23b, and the rear cover 18 is integrally provided on the body frame 1a side by these. Further, an opening 18b is formed in the front part of the rear cover 18. When the bonnet 10 is in the closed position, a locking fitting 10a provided at the rear of the bonnet is elastically fitted into the opening 18b and locked, thereby being locked and held in the closed position. .

Reference numeral 24 denotes an auxiliary seedling mounting frame formed on the upper part of the rear cover 18, on which a seedling box 25 filled with auxiliary seedlings can be placed. This structure forms a lower auxiliary seedling stand. In this case, the seedling box 25 is slid on the upper surface of the rear stepped portion 18a of the rear cover 18, so that the front end thereof is connected to the front end rising plate 18b of the rear cover 18.
It is designed to be placed in an inclined manner by pushing it until it hits the . On the other hand, auxiliary seedling frame 2
4 is assembled using members such as left and right side frames 26, an intermediate frame 27 supported between the side frames 26, and a connector 28 that connects the two, but these frames 26, 27 The side frame 2 is formed by a so-called blow molding method in which a molten resin material is expanded or stretched in a mold.
The lower end of 6 has a bolt 26a at the front and a bolt 26a at the rear which fixes the rear part of the rear cover 18.
3b, they are each integrally fixed to the rear portion 18 side.

Further, the intermediate frame 27 has a substantially H shape in plan view, and each of its front, rear, left and right legs has fitting portions 26c formed at the front and back of the upper part of the side frame 26.
A leg portion 27a is formed to fit the male and female parts, and
A protrusion 27b that protrudes upward is provided.
The intermediate frame 27 has a connecting tool 28 having a substantially hat-shaped cross section with the male and female leg portions 27a fitted together.
The side frames 26 are integrally connected by tightening both legs with bolts 28a such that the protrusion 27c is sandwiched between the central bulge 28b, which has a concave groove that opens on the frame contact side of the legs. I will do it. Moreover, the vertical frame of the frame rod 29, which is formed into a vertical and horizontal framework so that the seedling box 25 can be placed thereon, is fitted in advance from below to the central bulging part 28b of this connector 28, and is tightly attached to the frame as described above. It is inserted so that it can freely slide in the front and back direction using this groove as a guide. And this frame rod 2
9 is such that its center of gravity can be freely displaced between a front position located approximately above the wheel position of the running wheels 6 in the planting traveling state and a rear position located further behind and close to the seedling platform 8. ing.

In the embodiment of the present invention constructed as described above, the planting work can be carried out with auxiliary seedlings placed on two tiered auxiliary seedling stands provided above the machine frame 1a. When there are few remaining seedlings left on the seedling platform 8 during the planting operation, the auxiliary seedlings can be immediately replenished from the auxiliary seedling platform 24.

In this way, in the present invention, the fuselage frame 1a
Although it has an auxiliary seedling stand above it,
Specifically, the frame rod 29 of the upper auxiliary seedling platform is movable back and forth, and is positioned at the front when working in the field so as not to impair the balance of the machine. When replenishing seedlings,
By pulling the frame rod 29 and positioning it in the rear position, the auxiliary seedlings can be brought close to the seedling stand 8. Therefore, the work of replenishing seedlings becomes extremely easy, and workability can be significantly improved. Moreover,
The auxiliary seedling support frame in which the frame rods 29 are provided so as to be movable back and forth is formed using a pair of left and right side frames 26 and an intermediate frame 27 interposed between them. This is accomplished by the tool 28. Moreover, this connector 28
The frame rod 29 is inserted through the frame rod 29 so as to be slidable back and forth.
Therefore, it is not possible to assemble the auxiliary seedling frame easily, and a dedicated guide member for guiding the movement of the frame rod 29 is not required. This is not necessary and can greatly contribute to the simplification of the structure.

The auxiliary seedling stand at the bottom is fixed, but
The seedling stand 8 is low in the front and high in the back.
It's close to that, so it won't be much of a problem even if you don't take into consideration the forward and backward moving field like the one in the upper row.

Moreover, in the embodiment, the connector 28 is connected to the stepped portion 2.
7b are connected by sandwiching them from both sides, it is possible to assemble the auxiliary seedling support frame with high precision without misalignment, and thereby the frame rod 29 can be guided smoothly. This makes it possible to minimize the occurrence of distortion when assembling the auxiliary seedling support frame.

In addition, in this case, when the frame rod 29 is located at the forward position, it is located approximately at the 6th position of the traveling wheel, so even if auxiliary seedlings are placed here, it will not affect the longitudinal balance of the machine. There is almost no problem, and it is possible to drive in the field in a well-balanced condition.

Note that the auxiliary seedling support frame can be formed into a split frame structure without being limited to the one formed by a pair of side frames and an intermediate frame as in the above embodiment, and it is possible to use two or more split frames. It goes without saying that this can be implemented by linking. In this case, taking the above embodiment as an example, for example, the side frames may be further divided into front and rear parts, and these divided parts may be connected by inserting and removing them.

[Operation and Effect] In summary, the present invention is constructed as described above, so the frame rod on which the auxiliary seedlings are placed is positioned at the front during field work to maintain the balance of the machine, and the When replenishing seedlings to the seedling stand, it is possible to supply seedlings by displacing the seedlings rearward to bring them closer to the seedling stand, resulting in a significant improvement in work efficiency. Moreover, the auxiliary seedling support frame that supports the frame rods so that they can move back and forth has a split frame structure that is integrally connected using a connecting tool. It can be effectively used as is as a guide for rods. Therefore, there is no need for a separate member for guiding the frame rod, and the dual use of the rod parts is achieved, and assembling performance is improved and the structure is greatly simplified.

[Brief explanation of the drawing]

The drawings show an embodiment of the auxiliary seedling support frame structure in the walk-behind rice transplanter according to the present invention, in which FIG. 1 is a side view of the walk-behind rice transplanter, FIG. The figure is a cross-sectional side view of the main part, Figure 4A,
B is an enlarged sectional view and exploded perspective view of the bonnet pivot, FIG. 5 is an enlarged sectional view of the rear part of the bonnet, and FIG.
Figures A, B, and C are a perspective view of the bonnet, an exploded perspective view of the rear cover, and a sectional view of the main parts; Figures 7A and B are a sectional front view of the rear cover, a sectional side view of the main parts, and Figure 8. A and B are a perspective view of a main part and an exploded perspective view of a main part of an auxiliary seedling platform. In the figure, 1a is the body frame, 4 is the planting part, 8 is the seedling stand, 18 is the rear cover, 24 is the auxiliary seedling support frame, 26 is the side frame, 27 is the intermediate frame, 28 is the connector, and 29 is the It is a frame rod.

Claims (1)

[Claims for Utility Model Registration] 1. In a walk-behind rice transplanter comprising an auxiliary seedling stand arranged above a body frame with an engine installed at the front, the frame of the auxiliary seedling stand is integrated with a connecting device. Walk-behind rice planting, characterized in that the connector has a split frame structure connected to the auxiliary seedlings, and a guide portion is formed on the connector to slidably guide the frame rod on which the auxiliary seedlings are placed. Auxiliary seedling frame structure in the machine. 2. The connector has leg portions that are applied to and tightly attached to both split frames connected on both sides, and a recess into which a frame rod can be fitted from the side in contact with the frame is provided between the two leg portions. An auxiliary seedling support frame structure in a walk-behind rice transplanter according to claim 1, characterized in that the structure is provided with a groove, and the groove is used as a guide portion of a frame rod. 3. The auxiliary seedling support frame structure in a walk-behind rice transplanter according to claim 2, wherein the groove-shaped guide portion is configured such that a protrusion fits therein.