JP3418035B2 - Mudguard cover structure of rice transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mudguard cover structure for a rice transplanter in which a seedling planting device is provided on a body so as to be able to move up and down through a four-link mechanism and the seedling planting device is provided with a leveling float. .

[0002]

2. Description of the Related Art Conventionally, as a mudguard cover structure for a rice transplanter of this type, a leveling float is arranged immediately behind a rear wheel as disclosed in, for example, Japanese Patent Laid-Open No. 6-70624. As a result, there was a high possibility that mud that was blown backward by the lugs of the rear wheels etc. when traveling in the field would drop and adhere to the top surface of the ground float, especially on the front side. To prevent this, a vertical wall is erected at the front end of the ground leveling float, and the vertical wall covers the structure that prevents mud from splashing behind it or is suspended from the fixed part of the seedling planting device. A structure has been proposed in which the body is disposed on the front side of the ground leveling float, and the cover body prevents the dirt from splashing behind.

[0003]

However, in the above-mentioned conventional structure, the cover body for preventing the mud from dropping and adhering to the leveling float is simply erected like a vertical wall, or Since the structure is only cantilevered by the fixed part of the seedling planting device, the support strength of the cover body is low, the durability against mud adhesion etc. is low, there is a problem that it may deform. there were. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mudguard cover structure for a rice transplanter capable of increasing strength and also capable of sufficiently reliably erasing wheel marks. .

[0004]

In order to achieve the above object, the mudguard cover structure of a rice transplanter according to claim 1 of the present invention raises and lowers a seedling planting device on a machine body through a four-link mechanism. A mudguard cover structure of a rice transplanter provided with a leveling float in the seedling planting device freely, a cover body for mudguards to the front side of the leveling float located behind the traveling wheel, While being installed in a state of being cantilevered to the fixed part of the seedling planting device and extending forward, a ground leveling body for erasing wheel marks is arranged in front of the cover body, and the ground leveling body is described above. It is characterized in that a through hole through which a supporting rod for supporting the seedling planting device is inserted is formed on the front side surface of the cover body.

A mudguard cover structure for a rice transplanter according to a second aspect of the present invention is the mudguard cover structure according to the first aspect, wherein the support rod for supporting the ground leveling plate is passed through the through hole of the cover body to the fixing portion. It is characterized by being connected to. The operation and effect of this characteristic configuration are as follows.

[0006]

That is, according to the above-mentioned characteristic structure according to claim 1, the cover body for the mudguard against the front side portion of the leveling float located behind the traveling wheels is cantilevered on the fixing portion of the seedling planting device. And install it in the state of extending it forward,
A groundwork for erasing wheel marks is arranged in front of the cover body, and a through hole for inserting a support rod for supporting the groundwork body in the seedling planting device is formed on the front side surface of the cover body. Even if the cover body is deformed due to a load due to adhesion of mud, etc., or if another object comes into contact with the cover body and is deformed, the support rod contacts the through hole of the cover body to cover it. The body will be regulated so that it will not be deformed, and the wheels will be erased in advance by the ground leveling body before leveling with the ground leveling float, and the wheel marks will also be traced with high reliability by both the ground leveling body and the leveling float. It will be erased, and it will be possible to prevent the wheel marks from remaining in the field so that the seedling planting is adversely affected.

Further, according to the above-mentioned characteristic structure of claim 2, the support rod for supporting the ground leveling plate is connected to the fixing portion of the seedling planting device through the through hole of the cover body. The support strength is also extremely high, and the support rod prevents deformation of the cover body in this state, so that the durability of the cover body can be further enhanced.

[0008]

Therefore, according to the above-mentioned characteristic structure of claim 1, the cover body enhances the function of preventing the mud from adhering to the leveling float, but the support strength of the cover body is enhanced, and As a result, the wheel marks can be erased sufficiently reliably, and seedlings can be satisfactorily applied to a field that has been leveled without the wheel marks.

Further, according to the above-mentioned characteristic structure of claim 2, the supporting rod member itself has a very high supporting strength, and in this state, the supporting rod member prevents the deformation of the cover body. Therefore, the durability of the cover body can be further enhanced.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a riding type rice transplanter. This riding-type rice transplanter is equipped with an engine 4, a mission case 5, a boarding control unit 6 and the like mounted on a body 3 supported by a pair of left and right front wheels 1 and 1 and rear wheels 2 and 2 so as to be able to travel.
At the rear end of the machine body 3, a seedling planting device 9 and a fertilizer applying device 10 for 8-row planting are mounted via a four-link mechanism 8 swingably supported by a hydraulic cylinder 7.

As shown in FIG. 1, a seedling planting device 9 is composed of a feed case 10 connected to a four-link mechanism 8 and a square pipe as a fixing portion extending leftward and rightward from the feed case 10. Support frame 11, and the support frame 1
Planted transmission case 1 extended in four rows from 1 toward the rear
2, a seedling stand 13 that reciprocates laterally with a constant stroke with respect to the planting transmission case 12, a planting mechanism 14 that takes out one seedling from the lower end of the seedling stand 13 and plant it.
Further, it is constituted by the leveling float 15 for leveling the mud surface of the field. The planting mechanism 14 includes a planting transmission case 12
Rotating case 1 connected to a rotating shaft 12a provided at the rear of the vehicle
6, support cases 17 and 17 supported on both ends of the rotation case 16 so as to be rotatable relative to each other, and planting claws 18 provided on the support case 17.

Three leveling floats 15 are arranged side by side on the left and right, and leveling floats 15L on both the left and right sides are provided.
The rear wheels 2 and 2 are located in front of 15R. As shown in FIGS. 1 to 4, the cover body 19 made of sheet metal is bolted in a cantilevered manner, and the cover body 19 extends downward at its front end in a state of being extended forward. It is bent to form a vertical wall portion 19A. In addition, this vertical wall portion 19A is used for each leveling float 15
The front and rear ends of L and 15R are positioned so as to hang down, and the rear wheels 2 and 2 are positioned in front of the respective cover members 19 and 19 so that the cover members 19 and 19 are provided.

Further, the base end of the support rod 20 is connected to the front surface of the support frame 11 and extends forward. The support rod 20 extends further forward through a circular through hole 21 formed in the vertical wall portion 19A of the cover body 19.
A leveling plate 22 is pivotally supported around the horizontal axis X at the tip of the support rod 20, and the leveling plate 22 is elastically biased downward by a spiral spring. There is. Further, the ground plate 22 has a rake structure in which the free end is formed in a comb shape.

With the above structure, when the riding type rice transplanter is traveling in the field, even if the mud is blown backward by the lugs of the rear wheels 2 and 2, the wheels 2 and 2 are then moved.
The cover body 19 arranged at the rear of the ground prevents the mud from dropping and adhering to the upper surface portions of the front portions of the leveling floats 15L and 15R. In addition, the mud surface where the trails of the rear wheels 2 and 2 remain in the field is leveled by the left and right leveling plates 22, and then leveled by the left and right leveling floats 15L and 15R, respectively, and a substantially flat surface is obtained. It will be erased to the state that becomes. In addition, even if the cover body 19 is deformed into a lowered posture due to adhesion of mud or the like, the upper edge portion of the through hole 21 comes into contact with the support rod 20 that supports the ground leveling plate 22 and further descends. The cover body 19 is prevented from being deformed unduly, and the cover body 19 is also reinforced by the contact with the support rod 20.

[Other Embodiments] The rear wheel is not limited to one wheel,
In a structure in which auxiliary wheels are juxtaposed to the left and right sides of one main wheel with respect to one main wheel, the auxiliary wheel is provided separately from the ground erasing body and cover body for erasing traces and preventing dirt from landing on the main wheel. A ground leveling body and a cover body for erasing traces and for preventing dirt from landing may be provided. In the above-described embodiment, one supporting rod 20 is provided on the left and right sides of one grounding body 22, but the supporting rods may be supported by one supporting rod.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an overall side view showing a riding type rice transplanter.

FIG. 2 is a plan view showing a leveling float, a mudguard cover structure, and the like.

FIG. 3 is a vertical sectional side view showing a leveling float, a mudguard cover structure, and the like.

FIG. 4 is a perspective view showing a mudguard cover structure.

[Explanation of symbols]

3 aircraft 8 Quad link mechanism 9 Seedling planting equipment 11 Fixed part 15 Leveling float 19 cover body 20 Support rod 21 through hole 22 Plains

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 11/02 A01B 49/04

Claims (2)

(57) [Claims] 1. A machine (3) is provided with a seedling planting device (9) which can be moved up and down through a four-link mechanism (8), and the seedling planting device (9) is provided with a leveling float (15). The mudguard cover structure of a rice transplanter, wherein the leveling float (1) is located behind the traveling wheels (2).
The cover body (19) for the mudguard against the front side of 5),
The seedling planting device (9) is installed in a state of being cantilevered and supported by a fixed part (11) of the seedling planting device (9), and a ground leveling body (22) for wheel mark erasing is provided in front of the cover body (19). And a through hole (2) through which a support rod (20) for supporting the ground leveling body (22) on the seedling planting device (9) is inserted.
1) A mudguard cover structure for a rice transplanter in which the cover body (19) is formed on the front side surface thereof. 2. The support rod (20) for supporting the leveling plate (22) is provided with the through hole (2) of the cover body (19).
The mudguard cover structure of a rice transplanter according to claim 1, wherein the mudguard cover structure is connected to the fixing portion (11) through 1).