JPH0454738Y2 - - 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] Generally, this type of walking-type rice transplanter has a planting section located at the rear of a body frame in which an engine is provided at the front. Some of these walk-behind rice transplanters have a bonnet that covers the engine that is rotatably supported on the front side of the machine by a support shaft in order to facilitate inspection and maintenance of the engine and the like. However, when a walk-behind rice transplanter is shipped from the factory, stored in a warehouse, or stored in a barn by the user, it is often necessary to use an upright stand to stand it up so that the operating handle faces upward. In this case, if the rear part of the bonnet comes loose due to loose or insufficient engagement with the aircraft, the bonnet may suddenly fall forward and hit people or other parts, causing injury or damage. This poses a problem as there is a danger of it being put away.

[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. For this purpose, in a walk-behind rice transplanter that has a body frame with an engine at the front and a planting section arranged at the rear, the body frame is mounted on the front pivot so that the bonnet covering the engine section can be opened forward. While the bonnet is rotatably supported on the side, an auxiliary seedling stand is provided above the body frame on the rear side of the bonnet so as to be movable back and forth, and in the forward position, the auxiliary seedling stand overlaps the rear of the bonnet to restrict opening of the bonnet. It is characterized by being configured to do the following.

Although this configuration allows the bonnet to be opened forward using the front support shaft, the present invention prevents the bonnet from opening unexpectedly by installing an auxiliary seedling placed above the fuselage frame. This allows for reliable regulation using the mounting table.

[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 pivotably connected to the engine 2 side. 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 2 is integrally fixed to the front part of the engine 2 by bolts 12a, and a support cylinder 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. The bonnet 10 can be held in the open position by any appropriate means, such as by bringing the front end of the bonnet into contact with the lower surface of the support plate 12 on the fuselage side as in the embodiment, or by using a dedicated stopper member. It is possible. 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 16 of the marker 14 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 corresponds to the rear half of a conventional long bonnet. The rear cover 18 is integrally attached to the body frame 1a side. That is, the hydraulic cylinder 1 is located at the rear of the transmission case 3.
The rear bracket 17b of 7 is integrally attached with the bolt 17.
The front part of the rear cover 18 is fixed with bolts 1 to the mounting plate 19, which is integrally fixed with this.
It is tightly attached using 9a. 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. A plate 22a is integrally supported between the guide rails 21 at appropriate positions (of course, at positions that do not interfere with the operation of the balance rod 20). The legs of the mounting plate 22, which has a substantially inverted shape, are fastened to the plate 22a with bolts 22b. This mounting plate 2
The upper surface of the intermediate portion of the rear cover 18 is tightly fixed to the upper surface of the rear cover 18 by bolts 22d so as to sandwich the plate body 22c. Further, a frame 23 extends rearward at the rear end of the plate body 22c, and a support plate 23a that is integrally fixed to the frame 23 has a slightly raised stepped portion on the rear upper surface of the rear cover 18. The left and right side portions of the rear cover 18a are integrally fixed by bolts 23b, so that the rear cover 18 is integrally provided on the body frame 1a side. 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 stand formed on the upper part of the rear cover 18, on which seedling boxes 25 filled with auxiliary seedlings can be placed in two upper and lower stages. 18 itself, and the seedling box 25 is pushed by sliding the upper surface of the rear stepped portion 18a of the rear cover 18 until the front end abuts against the front end rising plate 18b of the rear cover 18. This allows it to be placed at an angle. On the other hand, the upper mounting section includes the left and right side frames 26, the side frames 2
The lower end of the side frame 26 is assembled using members such as an intermediate frame 27 that is supported between the frames 27 and a connector 28 that connects the two, but the front part of the lower end of the side frame 26 is The rear part is integrally fixed to the rear cover 18 side by bolts 23b which fix the rear part of the rear cover 18. Further, the intermediate frame 27 has a substantially H shape in plan view, and its front, rear, left and right corner legs have leg parts 27a which are male and female fitted into fitting holes 26c formed at the front and back of the upper part of the side frame 26. A protrusion 27b is formed and protrudes upward. Then, in the intermediate frame 27, with the male and female legs 27a fitted together, both legs of the connector 28, which has a substantially hat-shaped cross section, are tightly fastened together with the bolts 28a, with the protrusion 27c sandwiched between the central bulge 28b. As a result, it is integrally connected to the side frame 26.
Moreover, the central bulge 28b of this connector 28 has
The vertical frame of a frame rod 29, which is formed into a vertical and horizontal framework so that the seedling box 25 can be placed thereon, is inserted through the frame rod 29 so as to be slidable in the front and rear directions, thereby forming an upper placing section. The center of gravity of the frame rod 29 can be shifted 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 closer to the seedling platform 8 at the rear. It's getting old. In the forward position, the frame rod 29 overlaps the rear part of the bonnet 10 in the closed position to prevent the bonnet 10 from being opened unexpectedly, and when displaced to the rear position, the frame rod 29 overlaps the rear part of the bonnet 10 in the closed position. The restrictions on opening are being lifted.

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

In addition, when inspecting and maintaining the engine 2, it is necessary to open the bonnet 10, but in order to do so, pull the frame rod 29 and move it to the rear position, and hold the rear part of the bonnet in place with the locking fitting 10a. The engine section is exposed to the outside by lifting it up and folding it forward to open it.

In this way, in the present invention, the bonnet 10
Although the bonnet 10 can be opened forward using the pin shaft 13 as the front support shaft, in the closed position, the bonnet 10 can be opened by the frame rod 29 forming the auxiliary seedling stand 24. Unexpected openings will be definitely regulated. That is, the frame rod 29 is movable back and forth, and when positioned at the front position, the frame rod 29 overlaps the rear end of the bonnet 10 at the upper side. Therefore, when the aircraft is propped up for storage, etc., the locking metal fittings 10
The bonnet 10 may be insufficiently locked in a.
When the bonnet 1 tries to open forward,
0 comes into contact with the overlapping frame rod 29, and further opening is reliably regulated. As a result, when the machine is stood up, the frame rod forming the auxiliary seedling stand can prevent the bonnet 10 from falling forward and hitting people or objects, without using any separate release regulating member. 29 can be effectively used to prevent such incidents. Of course, it is also possible to prevent the bonnet 10 from being opened unexpectedly during normal driving. When you want to open the bonnet 10, pull the bonnet 10 from the front position toward you, that is, toward the rear, and move it to the rear position. This will ensure that the opening restriction is released, allowing you to inspect the engine, etc. will be possible.

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. Then, it is dedicated to supplying seedlings to the seedling stand 8, and the frame rod 29
If it is shifted to the rear, the distance to the seedling table 8 will be shortened, making it easier to replenish the auxiliary seedlings placed on the frame rod 29.

In the present invention, the auxiliary seedling stand for regulating the opening of the bonnet is not limited to the frame rod having the shape of the above embodiment, but may be any type as long as the auxiliary seedlings are placed thereon. In addition, in this case, the auxiliary seedling platform, which can be moved back and forth, is always biased toward the front position by the ammunition, and when you release your hand from the rear position, it will automatically move to the front position. It is also a good idea to return to .

[Function and Effect] In summary, since the present invention is constructed as described above, the bonnet, which rotates on the front support shaft, has the following characteristics:
This overlaps and accidental opening is regulated. Therefore, when storing the machine in an upright position, even if the bonnet becomes unlatched and attempts to fall forward, the overlapping auxiliary seedling platform will prevent the bonnet from opening unexpectedly. This makes it extremely safe. Moreover, the components that regulate this opening are
The auxiliary seedling stand can be constructed with an extremely simple structure that is simply movable back and forth so as to overlap the bonnet without using a separate dedicated regulating member. This greatly simplifies the structure.

[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. In the figure, 1a is the fuselage frame, 2 is the engine, and 4
is the planting section, 8 is the seedling stand, 10 is the bonnet, 18
24 is a rear cover, 24 is an auxiliary seedling stand, and 29 is a frame rod.

Claims (1)

[Scope of utility model registration request] A walk-behind rice transplanter has a body frame with an engine in the front and a planting section at the rear.
The bonnet covering the engine section is rotatably supported toward the fuselage by a front support shaft so that it can be opened forward, and an auxiliary seedling stand is provided above the fuselage frame on the rear side of the bonnet so as to be movable back and forth. Seedling stand,
An auxiliary seedling platform structure for a walk-behind rice transplanter, characterized in that the auxiliary seedling stand structure is configured to overlap the rear part of the bonnet at the front position to restrict opening of the bonnet.