JPH0414970Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to the structure of a seedling take-out plate for a rice transplanter.

(b) Conventional technology Conventionally, a mounting plate was connected to the back of the upper end base of a seedling take-out plate placed at the bottom of the seedling table, and the mounting plate slidably abutted on a support fitting protruding from the planting case. In the seedling removal amount adjusting mechanism of a rice transplanter configured to adjust the amount of seedling removal by adjusting the vertical movement of the seedling removal plate by sliding the mounting plate up and down, the seedling removal plate has an omitted cross section. Formed in an L-shape,
It is arranged parallel to the lower edge of the seedling platform and supports the weight of the seedling pine as it slides back and forth with the seedling platform. The outlet is cut out.

(c) Problems to be solved by the invention As a result, the seedling outlet has insufficient rigidity against bending, and the outlet easily bends downward due to the weight of the seedling pine, especially at the outermost seedling outlet.
Since the seedling take-out plate on the outside of the take-out port is in a cantilevered state, there is a drawback that when the seedling platform is positioned at the outermost position, a large amount of deflection occurs, resulting in an uneven amount of seedlings taken out by the planting claw. .

Furthermore, since the outer end of the seedling take-out plate is located at the outermost side of the lower part of the rice transplanter, it has the disadvantage that it is easily deformed from the take-out port even if it comes into slight contact with an obstacle such as a ridge.

(d) Means to solve the problem In this invention, a mounting plate is connected to the back of the upper end base of the seedling take-out plate placed at the bottom of the seedling stand, and the mounting plate is protruded from the planting case. Adjustment of the amount of seedlings taken out of a rice transplanter configured so that the amount of seedlings taken out can be adjusted by sliding the mounting plate up and down and adjusting the vertical movement of the seedling taking out plate, which is supported in a slidable manner by a supporting metal fitting. The structure of the seedling take-out plate of a rice transplanter is such that one side edge of the attachment plate is extended so that the extended part extends over the seedling take-out port and reinforces the back surface of the upper end base of the seedling take-out plate. This is what we intend to provide.

(E) Function/Effect According to this invention, the extending portion of the mounting plate fixed on both sides of the seedling take-out port increases the rigidity of the same take-out port portion of the seedling take-out plate, and reduces the weight of the seedling pine. Since deflection is prevented, unevenness in the amount of seedlings taken by the planting claws does not occur, and deformation due to contact with obstacles is also prevented.

Furthermore, the structure is simple because the mounting plate also serves as a reinforcing material for the notch of the seedling outlet.

(F) Embodiment The embodiment of this invention will be explained in detail based on the drawings. Fig. 1 is an overall side view of a riding-type rice transplanter A, in which a planting device A-2 is installed at the rear of the traveling machine A-1. are connected, and the planting device A- is connected by the traveling machine A-1.
2 is configured so that seedling planting work can be carried out while being towed in the field.

The traveling machine A-1 has a mount frame 2 on which a prime mover 1 is mounted, which is arranged in the front and back direction, and the prime mover 1 and the structural parts attached thereto are covered by a bonnet 3, and a handle 4 is provided at the rear of the bonnet 3. is installed upright, and a seat 5 is arranged behind the handlebar 4 with a certain space in between. The seat 5 is mounted on the upper part of a body frame 6 extending from the rear end of the gantry frame 2, and a step floor 7 is provided between the handle 4 and the seat 5.

Front and rear wheels 8 and 9 are respectively pivotally supported on the front and lower sides of the fuselage frame 6, and power is transmitted from the prime mover 1 to each of them. A transmission case 12 transmits power to the wheels 8, and a chain case 12 transmits power from the transmission case 10 to the rear wheels 9.

Note that the rear wheels 9 are configured to have a larger diameter than the front wheels 8 to improve the traction force and the load-bearing capacity when the planting device A-2 is lifted upward.

A link hitch 13 is provided at the rear end of the fuselage frame 6.
A planting device A-2 is connected to the plant via the device so as to be able to move up and down, and the planting device A-2 is configured as follows.

That is, a planting case 14 is connected to the rear end of the link hitch 13, and the case 14 is provided with a seedling stand 15 that is high in the front and low in the rear. The claw 16 is rotatably attached to the planting case 14, and furthermore, the claw 16 is rotatably attached to the planting case 14.
A float is provided below, and while the float holds the planting device A-2 at a constant height from the field, the traveling machine A-1 moves the planting device A-2 to the planting device A-2.
-2, the seedling pine on the seedling stand 15 is scraped off with the planting claws 16, and the seedlings are planted in the field.

The same number of planting claws 16 as the number of planting rows of rice transplanter A are arranged side by side on the left and right, and the seedling platform 15 also has a width sufficient to line up the same number of seedlings in the left and right direction. There is.

A seedling take-out plate 17 is disposed below the lower edge 15a of the seedling stand 15 in parallel with the lower edge 15a, and the plate 17 is made of an approximately L-shaped vertical plate 17a made of extruded aluminum alloy. It is connected to a supporting metal fitting 18 protruding from the side surface of the planting case 14 via a square pipe-shaped upper end base 17b formed at the upper end, and is connected to a substantially L-shaped bottom plate 17c of the seedling take-out plate 17.
The weight of the seedling pine placed on the upper surface of the inclined seedling mounting table 15 is supported from below.

A substantially rectangular seedling retrieval opening 20 is cut out at the position where the planting claw 16 passes through the bottom plate 17c of the seedling retrieval plate 17, and at the tip of the planting claw 16 passing through the retrieval opening 20 from above to below. Seedlings are scraped from the lower edge of the seedling pine and planted in the field.

The seedling platform 15 is configured to reciprocate from side to side by a stroke approximately equal to the width of the seedling pine so that the planting claws 16 can scrape off seedlings from the lower edge of the seedling pine on average. For this purpose, the upper part of the support fitting 18 is formed into a substantially inverted triangular shape, and the lower edge of the seedling stand 15 is supported slidably from below by the upper side thereof, and furthermore, the middle part of the support fitting 18 is provided with a part for holding the seedlings. A seedling removal amount adjustment mechanism 19 is provided for adjusting the vertical position of the removal plate 17 to adjust the amount of seedlings taken vertically.
The mechanism 19 has an elongated hole 19a formed in the vertical direction in the middle of the support fitting 18, a mounting plate 19c connected to the rear end of a slide pin 19b inserted into the elongated hole 19a, and a mounting plate 19c connected to the front end of the slide pin 19b. A slide plate 19 is pressed against the front surface of the support fitting 18 via a spring 19d.
At e, the support fitting 18 is pressed between the mounting plate 19c and the slide plate 19e, so that the mounting plate 19c is in a semi-fixed state in which it can be slid up and down, and the mounting plate 19c
The front surface of the upper end base 17b of the seedling extraction plate 17 is connected to the upper part of the seedling extraction plate 17, and the mechanism 19 can be operated up and down using an operating device (not shown).

The extension part 21 of the mounting plate 19c according to the present invention extends one side edge of the mounting plate 19c fixed to the back surface of the upper end base 17b of the seedling removal plate 17 on the seedling removal port 20 beyond the seedling removal port 20. The extension part 21 is plate-shaped with a substantially inverted L-shaped cross section, and is placed on the back side of the upper end base 17b on the left and right sides of the seedling outlet 20, while straddling the seedling outlet 20. As mentioned above, the seedling take-out port 20 of the seedling take-out plate 17
By fixing the extension part 21 to the part where the rigidity has decreased due to the notch, the seedling removal plate 17 is prevented from being bent due to the weight of the seedling pine, and unevenness in the amount of seedlings taken by the planting claws 16 is prevented. ing. In addition, seedling removal board 1
The portions outside the left and right outermost seedling outlet 20 of the seedling outlet 7 are cantilevered and are particularly prone to deflection, but in the present invention, the extension portions 21 are fixedly installed in these portions. This prevents bending and prevents discrepancies in the amount of seedlings taken. Furthermore, since the rigidity and strength of this outer portion are improved, deformation of the outer portion of the seedling removal plate 17 due to slight contact as in the conventional structure is prevented.

Note that the extending portion 21 is not limited to the shape of this embodiment, and is essentially fixed in a fixed state to the notch of the seedling take-out port 20 of the seedling take-out plate 17, and
5 and the planting claws 16 may be prevented from operating.

Moreover, FIG. 5 shows the line-drawing marker 22 attached to the planting device A-2 of this embodiment, and the marker 22 protrudes outward from the left and right outermost planting cases 14 and stands up upward. A wire drawing plate 22b is attached to the tip of the support rod 22a whose base end is freely pivoted.
The plate 22b is rotatably supported around the support rod 22a, and the plate 22b is biased downward by a torsion spring 22c when the marker 22 is extended outward. The approximately inverted U-shaped tip is used to mark the field with a line.

Also, a fixing ring 22d is attached to the tip of the support rod 22.
is fitted, and the drawing plate 22b is connected to the upper and lower stoppers 22e and 22f connected to the same ring 22d.
The rotation range of the stopper 22e, 22f is limited, and when the marker 22 is in the upright position, the stopper 22e, 22f
to restrict the downward rotation of the drawing plate 22b,
By moving it upward away from the outer periphery of the rear wheel 9,
When an auxiliary wheel is attached to the rear wheel 9, damage to the drawing board 22b due to contact between the drawing board 22b and the auxiliary wheel is prevented.

In addition, the one shown in FIG.
Another embodiment is shown in which the cross section is formed into a substantially U-shape.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of a rice transplanter having a seedling take-out plate according to the proposed structure, Fig. 2 is a plan view of the extension section according to the proposed structure, Fig. 3 is a front view of the same, and Fig. 4 is the same part. FIG. 5 is a cutaway side view, FIG. 5 is an exploded perspective view of the line drawing marker, and FIG. 6 is a partial perspective view showing another embodiment of the same marker. A... Rice transplanter, 15... Seedling stand, 15a... Lower edge, 16... Planting claw, 17... Seedling removal plate, 2
0...Seedling take-out port, 21...Extension part.

Claims (1)

[Scope of utility model registration request] A mounting plate 19c is connected to the rear surface of the upper end base 17b of the seedling take-out plate 17 arranged at the lower part of the seedling table 15, and the mounting plate 19c is slidably abutted on a support fitting 18 protruding from the planting case 14. A seedling removal amount adjustment mechanism 19 of a rice transplanter is configured so that the amount of seedlings taken out can be adjusted by vertically adjusting the vertical movement of the seedling removal plate 17 by vertically sliding the mounting plate 19c.
In the rice transplanter, one side edge of the mounting plate 19c is extended 21 so that the movable extension part 21 straddles the seedling take-out port 20 and reinforces the back surface of the upper end base 17b of the seedling take-out plate 17. Seedling removal plate structure.