JP3263106B2 - Root crop harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvester for root vegetables such as ginseng, radish and onion.

[0002]

2. Description of the Related Art Conventionally, as a root crop harvester, for example,
As shown in Japanese Patent Publication No. 34575/1989, the root vegetable in the field is held between the left and right by a conveying belt (9 in the publication).
Position where the root vegetables are suspended and transported upward and rearward, and the roots of the root vegetables that are suspended and transported are introduced between the left and right guide belts (10 in the publication) to align the height of the root vegetable main body. There has been proposed an apparatus provided with an aligning device and a cutter that acts on a leaf portion of the root vegetable in a state where the height of the root vegetable body is aligned by the position aligning device.

[0003]

The root crop harvesting machine having the above-described structure has a structure in which the leaf portion is sandwiched between the left and right guide belts as a positioning device, so that the shoulder portion of the root vegetable body is located at the lower end of the guide belt. Until they are brought into contact and their heights are aligned, they move relative to the guide belt in the stem / culm direction. Then, the leaf portion of the root vegetable is rubbed by the pressure contact with the guide belt, so that the root portion may be damaged.

An object of the present invention has been made in view of such a situation, and a root crop harvesting machine capable of smoothly aligning the height of a root vegetable main body without giving excessive frictional force to leaves. The point is to provide.

[0005]

Means for Solving the Problems [Structure, Function, and Effect of the Invention According to Claim 1] (Structure) The root crop harvester according to the invention according to claim 1 holds a root crop of a field with its leaves. The lifting and conveying device for nipping and pulling the root vegetable upward and backward, and the root portion of the root vegetable main body is aligned while moving the root vegetable leaf that is suspended and transported between the left and right guides and moving backward. A positioning device, and a cutter for cutting the root portion of the root vegetable in a state where the height of the root vegetable main body is aligned by the positioning device, wherein the left and right guide portions are a rotating endless band, and a rotating endless band. And a plurality of rollers attached to the belt and in contact with the leaves.

(Action) According to the above configuration, the root vegetables whose leaves have been clamped by the clamping / pulling-up / conveying device are leveled by the root vegetable main body abutting on the positioning device while being transported rearward. During this time, the root vegetables relatively move in the direction of the stem and culm of the leaves while being sandwiched between the left and right rollers. In this case, since the roller that contacts and supports the leaf is rotatable, the roller rotates as the leaf relatively moves in the direction of the stem and stem, thereby reducing resistance. The root vegetable main body can be lifted without adverse effects such as tearing off the leaves. Further, when the root vegetable body moves while being positioned in contact with the roller, since the roller surface is an arc surface, the roller does not bite into the root vegetable body, and it is not possible to increase the surface pressure on the root vegetable body. Absent. The roots are supported by rollers and the root vegetables are transported rearward together with the nipping and pulling transport device by the endless rotating belt, so that the root vegetables are transported backward while the root vegetable body side is prevented from being delayed and the posture of the root vegetables is kept constant. The root vegetable body can be raised smoothly.

(Effects) According to the first aspect of the present invention, since the relative movement of the leaves in the stem-and-stem direction can be smoothly performed in a state where the root vegetables are in a fixed posture, the root vegetables cannot be overwhelmed. The height of the root vegetables can be adjusted smoothly, the height can be adjusted to a fixed height, and the leaf cutting process can be performed efficiently and accurately.

[Structure, operation and effect of the invention according to claim 2]

(Structure) In the root crop harvesting machine according to the second aspect of the present invention, in the invention according to the first aspect, the opposing working surfaces of the left and right rollers are configured to be elastically retreatable.

(Function) According to the above configuration, the thickness of the leaf portion of the root vegetable is large and small, and when it is necessary to change the clamping interval between the left and right rollers, the plurality of rollers are individually elastically retracted independently. Since the root vegetables can be displaced, the root vegetables can be raised at intervals according to the thickness of the leaf portion of each root vegetable.

(Effects) Therefore, according to the second aspect of the present invention, regardless of the thickness of the leaf portion, each of the root vegetables is smoothly raised at a sandwiching interval corresponding to the thickness to a constant height. The alignment can be performed, and the alignment characteristics can be improved.

[Structure, operation and effect of the invention according to claim 3]

(Structure) In the root crop harvesting machine according to the third aspect of the present invention, in the invention according to the first aspect, the roller is configured to be able to retreat by a spring.

(Operation) According to the above construction, the rollers are displaced backwards for each roller in accordance with the thickness of the leaf portion against the urging force of the spring, so that the interval between the individual rollers can be changed quickly. I can do it.

(Effect) Therefore, according to the third aspect of the invention, the alignment performance can be improved with a simple configuration in which a spring is interposed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic side view of a root crop harvester constructed in a riding type according to the present invention, and FIG. 2 shows a plan view of its front part. Pull-out part 1,
The transport device 2 includes a cutter 3 for cutting leaves, a collecting unit 4, a crawler traveling device 5, and a control unit 6.

The pull-out section 1 is provided with a pair of right and left weeds 7, 7 acting near the ground at the forefront end of the fuselage. As shown in FIG. 3, the nipping / pulling-up / conveying device 9 has a pair of left and right conveying belts 11 and 11 which are driven to face each other in a rear-up-inclination posture. It is composed of

The conveying device 2 is provided with
And a positioning device A disposed below the device during the conveyance thereof, and the positioning device A is constituted by a pair of left and right guide portions 12, and the leaf portion of the root vegetables is formed by the left and right guide portions. While being introduced between 12 and 12, the upper portion of the leaf portion is nipped and transported by the pair of transport belts 11 and 11 of the nipping and pulling transport device 9, so that the root vegetables sent from the pull-out portion 1 are hung up and rearward and upward. It has a function to transport toward.

As shown in FIG. 4 and FIG.
Reference numeral 2 denotes a chain 15 as a rotating endless belt provided with a roller 14 rotatable around an axis Y along the transport direction for each chain link 13. Here, the roller 14 is attached to the chain link 13 in a state where a biasing force is applied toward the guide path side of the leaf portion by the spring 16, and the root portion of the root vegetable is an opposing working surface of the left and right guide portion 12,
In other words, the right and left rollers 14, 14 are elastically sandwiched by the opposing peripheral surfaces and receive a rearward conveying force. The conveying speed is almost the same as the speed of the conveying belt 11. Then, as shown in FIG. 1, the rearward inclination angle of the positioning device A is set to be smaller than that of the nipping / pulling / conveying device 9, so that the nipping / pulling / conveying device 9 and the positioning device A
Are configured such that the up-down distance from the upper side becomes wider toward the lower side in the transport direction.

As shown in FIG.
On the inner circumference of the left and right conveyor belts 11, a large number of rolling wheels 17 for pressing these in the direction in which they are present to generate a pinching force of the leaves are pressed, and are aligned from the front end. Conveyor belt front 11a up to the start end of device A
In the above, the strength of the spring 10a acting on the rolling wheel 17 is set so as to provide a strong pinching force sufficient to pull out the underground root vegetables, and then the rear side of the conveyor belt 1 on the rear side is set.
1b, the spring 10 is moved so that the holding force is weaker than the holding force at the front portion 11a of the conveyor belt.
A spring 10b thinner than a is used. The cutter 3 for leaf cutting is of a rotary type, and is provided at a position rearward of the nipping / pulling / up conveying device 9.

The operation in the main process of the harvester will be described. With advance of the machine, first, the root portion of the root vegetable in the field is picked up by the weeds 7 and the right and left conveyor belts in the nipping and lifting conveyor 9 are used. Guide between front 11a. When the leaves are nipped by the left and right transport belt front portions 11a with a strong gripping force and lifted upward and rearward, the root vegetables are pulled up from the field, and subsequently, the positioning device is aligned with the transport belt rear portion 11b in the nipping and lifting transport device 9. A is conveyed rearward and upward by both A.

At this time, as described above, since the distance between the nipping and lifting conveyance device 9 and the alignment device A is gradually increased toward the lower side of the conveyance, the root vegetable main body that is suspended and conveyed is gradually adjusted to the alignment device A. And the upper surface of the root vegetable main body is guided by the rollers 14 of the guide portion 12. And after that, the conveyor belt rear part 11
At the end of the conveyor belt 11, the root vegetable main body is driven by the rollers 14 of the guide portion 12 because the rearward transport force is transmitted to the root vegetable and the relative slip-through movement of the leaf portion is allowed by the weak gripping force of b. To make the height uniform.

The root vegetables having the same height can be cut off at a position away from the root vegetable main body with the cutter 3, so that the root vegetable main body and the leaves can be cut and separated.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a harvester for root crops.

FIG. 2 is a plan view showing the front part of the harvester.

FIG. 3 is a plan view showing the structure of a nipping / pulling-up / carrying device.

FIG. 4 is a vertical sectional front view of the rear half of the transfer device.

FIG. 5 is a plan view showing a part of the alignment device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Cutter 9 Nipping pulling conveyance apparatus 12 Guide part 15 Rotating endless belt A Positioning apparatus

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hironobu Higashi 64 Ishizukita-cho, Sakai City, Osaka Prefecture Inside the Kubota Sakai Factory (72) Inventor Masaaki Suetsuru 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd. (56) References JP-A-64-16512 (JP, A) JP-A-60-137207 (JP, A) JP-B-1-34575 (JP, B2) (58) Fields investigated (Int. . ^7, DB name) A01D 13/00 - 33/14

Claims (3)

(57) [Claims] 1. A root vegetable in a field is picked up by holding its leaves.
Pulling and lifting transport device that is suspended and transported rearward and upward
(9) and the left and right leaves of the root vegetable
Root vegetable while moving between back (12) and moving backward
Positioning device (A) for aligning body height, and said position alignment
Root vegetable with the height of the root vegetable body aligned with the device (A)
And a cutter (3) for cutting leaves.
The id portions (12), (12) are provided with a rotating endless band (15),
Attached to the rotating endless belt (15), it comes into contact with the leaf portion.
Root vegetables composed of a plurality of rollers (14) to be used
Harvester. 2. The opposing working surface of said roller (14).
2. The device according to claim 1, wherein the first member is configured to be capable of being elastically retracted.
Root crop harvester . 3. The roller (14) is connected to a spring (16).
The root vegetable according to claim 1, wherein the root vegetable is configured to be capable of retreating.
Kind harvester .