JPH0114092Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wheel trace leveling device for a rice transplanter.

Generally, a main float is installed at the bottom of the aircraft, and auxiliary floats are installed on both sides of the main float.
In a rice transplanter with wheels arranged between the main float and the auxiliary float, when a wheel track leveling body is installed between both floats at a position behind the wheels, the flow velocity of muddy water passing between both floats increases. In addition, since the soil leveling action of the wheel track leveling body disturbs the flow of mud, it is expected that problems such as disturbing the posture of the planted seedlings will occur.

Therefore, the invention of the present application was made in order to prevent the above-mentioned problems from occurring, and although a wheel mark leveling body is provided between both floats, the deterioration of the posture of planted seedlings due to muddy water is minimized. Moreover, it has been devised to ensure that wheel marks can be leveled reliably.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a plan view of a 4-row rice transplanter, in which a main float 6 that is long in the front and back direction is installed at the bottom of the machine body, and short auxiliary floats 7 are installed on both sides of the main float 6. A large space is formed by cutting out both sides of the middle rear portion of the auxiliary floats 6 and the inner sides of the intermediate portions of both the auxiliary floats 7, 7, and the position near the float in this space is used as the planting position A.

An engine E is mounted above the front side of the main float 6, and wheels 1, 1 with lugs are mounted between both sides of the main float 6 and both auxiliary floats 7, 7 in front of the positions of the recesses 6a, 7a. Both wheels 1, 1 are respectively installed at the rear of both swing transmission cases 9, 9 extending rearward from both sides of the engine E so as to transmit transmission freely, and the wheels 1, 1 are installed on both sides of the front part of the transmission cases 9, 9. The front parts of both auxiliary floats 7, 7 are supported by extending supports 10, 10, and handles 11, 11 are provided extending rearward from the rear of the main float 6, and the floats are connected between the floats and the fuselage side. A seedling planting depth adjustment rod 12 installed on the handles 11, 11 is installed so that the float can be adjusted up and down, and a seedling platform 13 installed diagonally in front of the handles 11, 11 is reciprocated in the horizontal direction so that each of the four The planting claws 8 are configured to scrape off the seedlings from the lower part of the seedling platform 13 and plant the seedlings at each planting position A.

A support frame 5 made of a round pipe is fixed horizontally to the rear of the lower part of the seedling stand 13, and the upper part of a support fitting 15 having a U-shaped cross section is joined to the rear surface of the support frame 5. 5, one end of the U-shaped rod 16 is inserted into the upper notch 15a of the support fitting 15, and a retaining pin 17 is inserted into one end of the U-shaped rod 16, which is inserted into the hole 18 on the rear surface of the support fitting 15. 16 other end threaded part 1
6a has a nut 19 screwed onto it from the outside, and a parallel link 2 which is in the front and back position and also shifted in the lateral direction.
Bent parts 2a, 3a are bent in the corresponding directions on the upper part of the support fitting 15, and bent parts 2a, 3a are formed in the front and rear of the lower part of the support fitting 15.
A stopper 20 is formed in the lower front part of the support fitting 15, and the stopper 20 is fitted in and inserted freely to rotate freely, and the stopper 20 comes into contact with the link 2 so as not to rotate forward from the vertical position.
Configure by hooking it to.

Reference numeral A denotes a leveling plate, which is located within the large space formed by the main float 6 and the auxiliary floats 7, 7, at the rear side of the planting position A and behind the wheels 1, 1, and furthermore, the front end 21 narrower, rear end 2
2 is formed wider than the width of the wheels 1 and 2, and both side edges 23 and 23 are formed in an inclined shape from the front end 21 to the rear end 22, and a U-shaped support is provided on the center upper surface of the ground leveling plate A. The plate 24 is fixed, and the bent portions 2b and 3b, which are bent in corresponding directions at the lower portions of the parallel links 2 and 3, are fitted into the front and back of the support plate 24 so as to be rotatable, and the hook 4b at the other end of the spring 4 is bent. Although it is configured to be hooked onto the portion 3b, it is attached so that the ground leveling plate A is in a posture inclined toward the front height when supported via the parallel links 2 and 3.

B shows the entire hook, and the tip of the chain 25 is connected to a hook 26 that can be hooked to the bent part 3b, and the link 27 at the other end of the chain 25 is connected to the pin 17, and the hook 26 is connected to the bent part 3b. By hooking the hook 26, the ground leveling plates A, A can be held in position above, and the vertical position can be freely adjusted.

Furthermore, when the chain 25 is not in use, it is short so that it can be hung down, and the hook 26 can be hung on the upper part.

Then, with the rice transplanter moving forward in the direction of arrow B using both wheels 1, 1, and the main float 6 and auxiliary floats 7, 7 sliding on the rice field, each of the four planting claws 8 is at the planting position A. Planting is carried out respectively, and the ground leveling plates A, A follow and slide on the tracks left by both wheels 1, 1 to level the ground.

In this state, the leveling plates A, A supported by the parallel links 2, 3 are tilted forward and slide on the rice field while being pressed toward the rice field by the spring 4, leveling the marks left by the wheels 1, 1. However, even if the planting depth is adjusted by operating the planting depth adjustment rod 12, the leveling plate A does not change its posture due to the support of the parallel links 2 and 3, and is pressed by the spring 4. You can slide on the rice field.

In addition, seedlings can be planted while the muddy flow passing between the floats 6, 7, 7 is weakened by the large space formed between the floats 6, 7, 7. Moreover, since the wheel marks can be leveled afterwards, the posture of the planted seedlings can be prevented from deteriorating.

In addition, since the muddy water flow is weakened by the space, it has little effect on the posture of planted seedlings.
The ground leveling plates A, A can be configured to have a wide width, thereby ensuring reliable leveling of the ground.

In addition, in cases where the amount of water in the field is large or the soil is very soft, wheel marks can be leveled naturally by the flow of mud water itself without using leveling plate A. When leveling the ground using the leveling plate A, the leveling action causes severe muddy water flow disturbance, which greatly disturbs the posture of the planted seedlings.
Raise the leveling plate A by rotating the hook 26.
By hooking it to the bending part 3a and holding the leveling plate A in an upward position with the support of the hook B, it is possible to prevent the posture of the planted seedlings from deteriorating.

As described above, the present invention provides a rice transplanter in which a main float is installed at the bottom of the machine body, auxiliary floats are installed on both sides of the main float, and wheels are arranged between the main float and the auxiliary floats. A large space is formed between both the main and auxiliary floats by cutting out both sides of the main float near the middle in the longitudinal direction and the inside of the auxiliary float near the middle in the front and back direction, while a large space is formed between the main and auxiliary floats. At the rear side of the mounting position A and at the rear position of the wheels, a ground leveling body for leveling the ground left by the wheels is provided whose position can be freely adjusted up and down, and the leveling body is formed in a wide shape so that the leveling width thereof is larger than the width of the wheels. Because of this structure, seedlings can be planted while the momentum of the muddy water flowing between the floats is weakened by the large space, and the wheel marks can be leveled afterward, which improves the posture of the planted seedlings. Deterioration can be prevented as much as possible.

Furthermore, since the muddy water flow is weakened by the space, reliable leveling can be performed using the wide leveling body with little influence on the posture of planted seedlings.

In addition, by adjusting the vertical position of the land leveling body according to field conditions such as the amount of water in the field and soil hardness,
Deterioration of the posture of planted seedlings can be prevented as much as possible.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a plan view of the rice transplanter, Fig. 2 is a side view, Fig. 3 is a side view of the main part, Fig. 4 is an enlarged side view of the main part, and Fig. 5 is a plan view of the rice transplanter. 6 is a side sectional view of FIG. 5, and FIG. 7 is a schematic plan view for explanation. 1...Wheel, A...Grade leveling body, 6...Main float, 7...Auxiliary float.

Claims (1)

[Scope of utility model registration request] In a rice transplanter, a main float is installed at the bottom of the machine body, and auxiliary floats are installed on both sides of the main float, and wheels are installed between the main float and the auxiliary float. A large space is formed between both the main and auxiliary floats by notching both sides near the middle in the direction and the inside of the auxiliary float near the middle in the front-rear direction. The rice planting is characterized in that a land leveling body for leveling the land left by the wheels is provided at a position rearward of the wheels, the position of which can be freely adjusted up and down, and the land leveling body is constructed in a wide shape so that the width of the leveling body is larger than the width of the wheels. Wheel track leveling device on machine.