JPH0454740Y2 - - Google Patents

Description

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

[Problems to be solved by the prior art and the invention] In general, 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 the auxiliary seedlings are placed on this platform. There is a device that allows planting work to be done with the plant placed on it. However, as shown in Utility Model Publication No. 59-12014, for example, this auxiliary seedling stand was constructed as an integral part including the part on which the auxiliary seedlings were directly placed.
It is preferable to place the auxiliary seedlings above the running wheels so that the presence or absence of the auxiliary seedlings does not adversely affect the balance of the aircraft. The drawback is that it is far away from the side seedling stand, making it difficult to supply seedlings from the auxiliary seedling stand to the seedling stand. Therefore, it has been devised to make the auxiliary seedling stand movable back and forth, but in this case, if the moving position and set position of the auxiliary seedling stand becomes ambiguous,
There is a problem in that the balance of the aircraft may be disturbed and the warping may cause adverse effects.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing an auxiliary seedling stand structure for a walk-behind rice transplanter that can eliminate these drawbacks. An auxiliary seedling mounting frame is installed above the body frame in which the engine is installed at the front, and a frame rod on which auxiliary seedlings are placed is provided on the auxiliary seedling mounting frame so as to be movable back and forth. The mounting frame is characterized in that it is provided with a stopper that engages with the engaging portion on the side of the frame lever so as to cross over the peak, and positions and sets the frame lever at a forward and backward movement position.

With this configuration, the present invention allows the frame rods constituting the auxiliary seedling stand to be freely movable back and forth, while also making it possible to reliably set the position of the frame rods back and forth. It is something.

[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 at the front of the fuselage frame 1a, and its front portion is pivotally connected to the engine 2 side. That is, at the front end of the bonnet 10, a mounting plate 11a which also serves as a reflector to which the headlamp 11 is fixed is integrally fixed by bolts 11b.
A substantially square-shaped bracket 11c is integrally fixed to the lower side of a. 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. And support tube 12b
The legs of the bracket 11c are attached to the left and right ends of the bonnet 11c, and the bonnet 10 is pivotally supported by a pin shaft 13, so that the bonnet 10 can swing freely in the vertical direction, and is in a closed position that covers the engine part. It is designed to swing forward and freely transform into an open position where the engine section is exposed. 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 integrally fixed to the mounting plate 19.
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 take-up 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 fuselage frame 1a. , the appropriate position of this guide rail 21 (the balance rod 2
Of course, the plate 22a is in a position that does not interfere with the operation of the Plate 22a. The leg portions 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 fixed to the upper surface of the mounting plate 22 by bolts 22d so as to sandwich the plate body 22c. Furthermore, a frame 23 is provided at the rear end of the plate body 22c.
The rear cover 1 is attached to a support plate 23a that is integrally fixed to the frame 23.
The left and right side surfaces of a slightly raised stepped portion 18a on the rear upper surface of the rear cover 18 are integrally fixed by 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, the locking fitting 1 provided at the rear of the bonnet
By elastically fitting and locking the opening 18b into the opening 18b, the opening 18b is 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 is 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, the auxiliary seedling support frame 24 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. The lower ends of the side frames 26 are integrally fixed to the rear cover 18 side by bolts 26a at the front and bolts 23b which fix the rear part of the rear cover 18 at the rear. Also, intermediate frame 2
7 has a substantially H-shape in plan view, and each of its front, rear, left, and right legs has leg parts 2 that are male and female fitted into fitting parts 26c formed at the front and back of the upper part of the side frame 26.
7a is formed, and a protrusion 27b protruding upward is provided. and intermediate frame 2
7 is a central bulge portion 28b in which both legs of the connecting tool 28, which has a substantially hat-shaped cross section, are formed with a concave groove that opens on the side of the frame abutting surface of both legs when the male and female legs 27a are fitted together. The side frames 26 are integrally connected by tightening them with bolts 28a so as to sandwich the projections 27c. Moreover, the central bulge 28b of this connector 28 has a seedling box 25
The frame rod 29 is formed with a vertical and horizontal framework so that it can be placed on it.
The vertical frame is fitted in advance from below, and when the frame is tightly attached to the frame as described above, the vertical frame is inserted through the frame so that it can be slid forward and backward using the groove as a guide. The center of gravity of this frame rod 29 is located at the front position, which is approximately above the wheel position of the running wheels 6 during the planting running state, and at the seedling stand 8 at the rear thereof.
It is configured so that it can be freely displaced to a rear position close to the .

Further, in the center portion of the pair of front and rear horizontal frames of the frame rod 29 extending in the left-right direction, an engaging portion 29a is formed by bending the lower side into a stepped shape. On the other hand, the engaging portion 2 is provided at the center of the intermediate frame 27.
A groove 27c is formed corresponding to the groove 9a, and stoppers 27d are formed at both front and rear ends of the groove 27c. As mentioned above, when the frame rod 29 moves back and forth, the concave groove 2
The engaging portion 29a that slides on the stopper 27
By climbing over d in a mountain-like manner, the front and rear positions of the frame rod 29 are set, and deviations from this position are restricted.

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,
In the upper auxiliary seedling platform, the frame rod 29 is movable back and forth, and when working in the field, it is positioned at a forward position approximately corresponding to the position of the traveling wheels 6, so that the balance of the machine during traveling is impaired depending on the presence or absence of auxiliary seedlings. However, when replenishing seedlings from the auxiliary seedling stand to the seedling stand 8, by pulling the frame rod 29 and displacing it to the rear position, the auxiliary seedlings are transferred to the seedling stand 8.
can be placed close to. Therefore, the work of replenishing seedlings becomes extremely easy, and workability can be significantly improved.

As described above, in the present invention, the frame rod 29 is made to be freely movable back and forth, thereby making it possible to reliably maintain the balance of the machine and improve workability when replenishing seedlings. The forward and backward movement position is determined by a stopper 27 provided on the intermediate frame 27 side.
d, the position is set securely. Therefore, when moving the frame rod 29, the operator should move the engaging portion 2 at a position where it is determined that the frame rod 29 has approximately reached the forward or backward movement.
The frame rod 29 is always kept at a predetermined position by intuitively determining that the stopper 9a has crossed the mountain by changing the operating force and stopping the movement of the frame rod 29 at the moment when it is determined that the stopper 27d has crossed the mountain. Therefore, if the frame rod 29 is not moved enough or moved too much, the balance of the aircraft will be impaired, or the frame rod 29 will be insufficiently supported by the frame, and the frame This makes it possible to prevent problems such as the auxiliary seedlings placed on the rod 29 tilting and falling or the frame rod 29 being deformed.

The auxiliary seedling stand at the bottom is fixed, but
Since the seedling platform 8 is low in the front and high in the rear, it is practically close to the seedling platform 8, and there is no problem even if consideration is not given to the back and forth movement like the one on the upper stage.

[Function and Effect] In summary, the present invention is constructed as described above, so that the frame rod on which the auxiliary seedlings are placed is movable back and forth, and it is possible to maintain the balance of the machine during planting travel and to remove the seedlings from the frame rod. Although it can facilitate the supply of seedlings to the attached seedling stand,
By displacing the frame rod to a position where the engaging part crosses the stopper on the auxiliary seedling frame side,
The frame rods can be set in an accurately positioned state, which makes it easy to position and set the frame rods, and prevents the setting position from becoming ambiguous and causing the machine to lose its balance, or the frame rods being held unstable by the auxiliary seedling support frame. This makes it possible to reliably prevent problems that would otherwise occur.

[Brief explanation of the drawing]

The drawings show an embodiment of the auxiliary seedling stand structure in the walking rice transplanter according to the present invention, in which Figure 1 is a side view of the walking rice transplanter, Figure 2 is a plan view of the same, and Figure 3 is a side view of the walking rice transplanter. The figure is a sectional side view of the main part, Figures 4A and B are enlarged sectional views and exploded perspective views of the bonnet pivot, Figure 5
The figure is an enlarged sectional view of the rear part of the bonnet, Figure 6A,
B and C are a perspective view of the bonnet, an exploded perspective view of the rear cover, and a cross-sectional view of the main parts; Figures 7A and B are a cross-sectional front view and a cross-sectional side view of the rear cover; are a perspective view of the main part of the auxiliary seedling stand, a sectional view of the main part,
FIG. 9 is an exploded perspective view of the auxiliary seedling platform, and FIG. 10 is a sectional view for explaining the operation. In the figure, 1a is the machine frame, 4 is the planting part, 8 is the seedling stand, 24 is the auxiliary seedling support frame, 26 is the side frame, 27 is the intermediate frame, 27b is the stopper, 29 is the frame rod, and 29a is the engagement. It is a joint.

Claims (1)

[Scope of utility model registration request] An auxiliary seedling mounting frame is set up above the body frame in which the engine is provided at the front, and a frame rod on which auxiliary seedlings are placed is provided on the auxiliary seedling mounting frame so as to be movable back and forth. This is an auxiliary seedling support structure for a walk-behind rice transplanter, characterized in that an engaging part on the side of the frame rod is engaged so as to cross over a hill, and is provided with a stopper for positioning and setting the frame rod at a forward and backward movement position.