JP2001128524A - Device for leveling height in root vegetable harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut leaves and stalks just above a root in harvesting root vegetables such as carrot and the like by a root vegetable harvester. SOLUTION: In a harvester which pull out root vegetables planted in a farm by nipping leaves and stalks of them by a pull out conveyor and convey them backward, level their heights by pressing the upper parts of the conveyed root vegetables by a height-leveling device and cut the leaves and stalks by a cutter, the height leveling device is constituted by installing height-leveling plates constituting the device to face on the both sides of a conveying passage with certain spaces, to pass the leaves and stalks through the spaces and to level the heights by rubbing the upper part of the root vegetables against the lower surface of the device. The height leveling plates are divided into several pieces in the forth and back direction. Each of the divided pieces is brought to be movable to the partner direction and able to elastically force toward the partner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a height adjusting device for a root crop harvesting machine having a relatively long root vegetable such as carrot or radish.

[0002]

2. Description of the Related Art A root vegetable crop vegetated in a field is pulled out of the ground by holding a leaf stem of the root vegetable crop by a pulling and conveying device, and the pulled root vegetable is held in a suspended posture and then transported upward. There is a root crop harvesting machine that cuts a leaf stem with a cutting device provided in the middle of the conveyance and harvests a root crop. In such a root crop harvesting machine, in order to make the cutting height of the leaf stem constant, below the middle of the drawing and conveying device,
Provide a height aligning device having a height aligning plate that passes only the leaf stem portion between the intervals and conveys the root vegetable portion as non-passing, and press down the upper surface of the root vegetable portion with this height aligning plate The height of the is made uniform.

[0003] In this case, since the thickness of the leaf stem is also different from each other, if the interval between the height aligning plates is fixed, if the height is too wide, the gap is too large and the upper surface of the root vegetables is lifted within the interval. If the root vegetables are cut and the root vegetables are too narrow, the root vegetables are not sufficiently pressed down, and a considerable portion of the leaf stems may be cut. Further, in such a state, smooth conveyance is hindered. For this reason, height aligning plates are arranged on both sides of the transport path so that each can be moved in the direction of the opponent, and at all times, the interval is adjusted by springing toward the opponent with a spring etc. Was tightly pinched.

[0004]

However, the conventional height aligning plate is a single piece, and a link is pivotally connected to the front end and the rear end of the plate, and this link is pushed by a spring to repel the side having a reduced distance. Because of the emission, the interval was different depending on the position between the leaf stems. In other words, when the leaf stems sandwiched by the height alignment plate are not at the same distance from the front and rear pivot points, the height alignment plate is inclined obliquely in a plan view so as to reduce the distance on the far pivot point side. Become. Therefore, if leaf stems having different thicknesses are conveyed during this time, the same situation as described above occurs. The present invention solves such a situation by dividing the height alignment plate and bending each of the height alignment plates freely.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a pulling and conveying device which pinches and pulls a leaf stem portion of a root crop planted in a field and conveys it rearward. Hold down the top of the root vegetables to be transported and align the height,
In a root crop harvester that cuts the leaf stem with a cutting device,
A height aligning device is installed on both sides of the transport path with a fixed interval between the height aligning plates constituting the device, and in addition to inserting the leaf stem portion during this interval, the bottom of the root vegetable portion is provided. The upper surface was rubbed to make the height uniform, and the height alignment plate was divided into several parts in the front-rear direction, and each of the divided pieces was movable in the direction of the other, while being elastically biased toward the other. A height aligning device in a root crop harvesting machine is provided.

By taking the above measures, the difference in the distance between the height aligning plates (inclination in plan view) is reduced, regardless of the position of the leaf stem. Further, the leaf stem is in a state of being appropriately pressed by the height aligning plate. Therefore,
Regardless of the diameter of the leaf stem and the relative position of the height alignment plate, the pinching by the height alignment plate is almost the same, and the performance of height alignment and transportability are improved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 is a side view, FIG. 5 is a plan view, and FIG. 6 is a front view of the root vegetable crop harvester according to the present invention. And a self-propelled body (body) 2 having a self-propelling function. Root crops 3 such as carrots are furrows 4
As mentioned above, this harvester is
First, the leaf stem 3a of the root vegetable crop 3 is grasped and pulled out together with the root vegetable 3b. Then, the root vegetable crop 3b is conveyed to the rear and upward in a hung state to cut the leaf stem 3a and harvest the root vegetable 3b. This is performed while the fuselage 2 is traveling in the direction along the ridges 4.

In order to do so, the leaf stem 3a to be harvested by the leaf splitting device 6 for rotating the tine 5 backward in the vertical plane of the rear inclination and the leaf stem 3a not to be harvested are separated and rotated rearward in the horizontal plane of the rear inclination. Stem 3a to be harvested by the scraping device 8 composed of the tine 7
Only scrape back. The leaf stem 3a scraped by the scraping device 8 is composed of a pair of belts 9 that rotate rearward together while sandwiching the leaf stem 3a by an opposing surface in a rear inclined horizontal plane provided behind the leaf stem 3a. The root vegetable portion 3b is pulled out from the ground by being held by the pull-out transport device 10.

At this time, a vibrating device 12 is provided below the starting end of the pulling and conveying device 10 so that an L-shaped vibrating blade 11 in front view is inserted into the soil to loosen the soil around the root vegetables 3b. This facilitates extraction. The root vegetables 3b pulled out by the pulling and conveying device 10 are sequentially conveyed upward after the leaf stems 3a are pinched by the belt 9, but the root vegetables 3 are pulled out at this time and conveyed rearward. The transport line 13 is set at a position on the front left side of the body 2 (specifically, slightly outside of the left traveling device 1).
It is parallel to the front and rear lines of the fuselage 2.

Below the rear portion of the pull-out conveying device 10, a pair of right and left guides are inserted through the leaf-stalk portion 3a on the nipping and conveying line 13 to press the root vegetables 3b from above and to guide the root vegetables 3b horizontally rearward while preventing them from passing therethrough. A height aligning device 15 having a height aligning plate 14 is provided. FIG. 1 is a partial side view showing the relationship between the drawing and conveying device 10 and the height aligning device 15 and the like, FIG. 2 is a partial plan view thereof, and FIG.
The height aligning plate 14 has a gap 16 between the front and the front is inclined upward and rearward, and is formed horizontally from the middle, and from the part of the gap 16 to the leaf stem portion. 3a is inserted. Therefore, when the root vegetable portion 3b hangs on the height aligning plate 14, the length of the holding position by the pulling and conveying device 10 becomes different (the length of the leaf stem portion to be held gradually increases). The holding force of the belt 9 is set so as to be able to cope with this gradual lengthening (scraping of the leaf stem 3a is allowed).

In this way, the root vegetable crop 3 is
When exiting from 4, the end of the height alignment plate 14 is formed horizontally, and the upper surface of the root vegetable portion 3b is rubbed against the height alignment plate 14, so that the heights of the upper surfaces of all the root vegetable portions 3b are aligned. (Same). In the present invention, the height alignment plate 14 is divided into several parts before and after, which will be described later.

[0012] Above the height aligning device 15 and below the pull-out transport device, the leaf stem 3a inserted from the height aligning device 15 on the opposing surface is moved backward in synchronization with the transport speed of the pull-out transport device 10. An auxiliary transfer device 18 including a body 17 is provided. Since the auxiliary transfer device 18 compensates for a reduction in the transfer force of the pull-out transfer device 10 due to the presence of the height aligning device 15, the transfer body 17 is not pinched (not the leaf stem portion 3a). It is necessary not to hinder the upward movement), but it is also possible to simply use a belt or the like with a projection 17 that imparts a conveying force (of course, it may be sandwiched).

A cutting device 2 having a disk cutter 19 for cutting the leaf stem 3a to be transported is provided in the transport path (nipping transport line 13) of the leaf stem 3a behind the height aligning device 15.
0 is provided. In addition, the disk cutter 19 of this example is
Although it is composed of two sheets partially polymerized, it may be one sheet. By the way, the leaf stem 3a at this time
Is required to be at the base of the upper part of the root vegetable portion 3b (so-called zero cut).
The cutting plane is set to substantially the same level as the lower surface of the height alignment plate 14 and the disk cutter 19 is arranged immediately after the height alignment plate 14. Further, when the leaf stem 3a is cut by the cutting device 20, the cutting device 20 and the pull-out transport device 10 are moved so that the nipping position of the leaf stem 3a by the pull-out transport device 10 is substantially above the leaf stem portion 3a. (Figure 1).

The leaf stem 3a cut by the cutting device 20 is:
Thereafter, the paper is conveyed to the end by the pull-out conveyance device 10 with the hanging length from the belt 9 being fixed and discharged (at this time, it is set so as to be detached from the auxiliary conveyance device 18). A leaf discharging device 2 having a chute 21 that receives this and guides it to the rear of the body 2 below
2 are provided. In this case, the starting end height of the chute 21 is preferably as close as possible to the nipping and transporting device 10 because receiving errors are small, but it is almost the same as the rising height of the cut lower end of the leaf stem 3a or lower than that. There is a need.

In addition, below the cutting device 20, the airframe 2
Is provided with a slat conveyor 23 that moves to the right side of the vehicle, and the root vegetables 3b that have fallen due to the cutting of the leaf stems 3a are received by the collection device 24 and sent to the rear right side of the machine body 2. . The rear right part of the fuselage 2 is set in a sorting zone, and a worker who moves with the harvester separates non-defective products from non-defective products in this sorting zone. Each of them is sent rearward to carry out a predetermined collection operation.

FIG. 7 is a rear view of an example in which a disc plow-shaped ridge breaking tool 25 for breaking the ridge 4 after harvesting is provided at the rear.
The ridge breaker 25 is connected to the X-link 2 by the hydraulic cylinder 26.
7, the rod 26a of the hydraulic cylinder 26 is not directly connected to the X-shaped link 27, but is temporarily provided with an auxiliary link 28 therebetween, and is connected to the auxiliary link 28. I have to. In this case,
The direction of the action line is improved, and a large force can be exerted for starting from the position where the X-shaped link 27 is raised most.

According to the present invention, the height alignment plate 14 is divided into several pieces (three in this example) in the front-rear direction, and each of the divided pieces 14a to 14c is divided into the mating direction (left-right direction).
And elastically biased toward the other party at all times. Specifically, each of the divided pieces 14a to 14a
4c is pivotally mounted on the connecting shaft 30 and a resilient rod movably provided on a receiving member 33 fixed to the fixing plate 32 at each of the connecting shaft 30 and the front and rear end points 31 of the front and rear divided pieces 14a and 14c. The springs 35 are connected to each other, and each spring 34 is elastically biased (forward) toward the other by a spring 35.

Accordingly, the divided pieces 14a to 14c are individually bent about the connecting shaft 30 or the connecting point according to the thickness of the leaf stem 3a, so that the interval 16 with the other party is divided into other parts. It is not affected by the pieces 14a to 14c. In other words, each of the divided pieces 14a to 14c has an interval 16 with the other side in accordance with the thickness of the leaf stem 3a passing through the own part, and can realize a pinched state that is in an appropriate state.
The height alignment plates 14a to 14c are formed of metal plates 14aA to 1a.
Although it is made of 4cA, resin plates 14aB to 14cB are stuck on the lower surface of the root vegetables 3b to be rubbed.

[0019]

As described above, according to the present invention, since the height aligning plate is divided, the interval formed between the height aligning plates is too large or too small due to the influence of other divided pieces. Or not. Therefore, a moderately pinched state of the leaf stem can be realized, and the alignment function and the transport function are not hindered.

[Brief description of the drawings]

FIG. 1 is a partial side view showing a relationship between a drawing and conveying device, a height aligning device, and the like showing an example of the present invention.

FIG. 2 is a partial plan view showing the relationship between a drawing and conveying device and a height aligning device, etc., showing an example of the present invention.

FIG. 3 is a cross-sectional view of a height aligning device showing an example of the present invention.

FIG. 4 is a side view of a root crop harvester showing an example of the present invention.

FIG. 5 is a plan view of a root crop harvester showing an example of the present invention.

FIG. 6 is a front view of a root crop harvester showing an example of the present invention.

FIG. 7 is a rear view of a root crop harvester showing another example of the present invention.

[Explanation of symbols]

 3 Root Vegetable Crops 3a の 葉 Leaf Stem 3b 部 Root Vegetables 10 Pull-out and Conveyance Device 14 Height Alignment Plate 14A Metal Plate 14B Resin Plate 15 Height Alignment Device 16 Interval 18 Auxiliary Transport Device 20 Cutting Device

[Procedure amendment]

[Submission date] November 12, 1999 (1999.11.
12)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shoji Teramoto 428 Enami, Okayama City, Okayama Prefecture Seirei Industry Co., Ltd. F-term (reference) 2B072 AA04 AA10 CA12 DA02 DA12 DA18 DA19

Claims (4)

[Claims] 1. A pulling and conveying device for pinching and pulling a leaf stem portion of a root crop planted in a field and transporting the same rearward, and pressing the upper surface of the root vegetable portion conveyed by a height aligning device to the height thereof. In a root crop harvesting machine that cuts the leaf stems with a cutting device, the height aligning device is provided with a height aligning plate that constitutes this device on both sides of the transport path at a fixed interval, and In addition to inserting the leaf stem during the interval, rub the upper surface of the root vegetable part on the lower surface and make the height uniform,
The height alignment in the root crop harvesting machine, wherein the height alignment plate is divided into several parts in the front-rear direction, and each of the divided pieces is movable toward the partner, while being elastically biased toward the partner. apparatus. 2. The height aligning device in a root crop harvesting machine according to claim 1, wherein the divided pieces are pivotally mounted on a connecting shaft so as to be bent. 3. The height aligning device according to claim 1, wherein the height aligning plate is formed by stacking a metal plate on a resin plate. 4. The height adjustment in a root crop harvesting machine according to claim 1, wherein the conveyance while clamping the leaf stem changes from the drawing conveyance device to the auxiliary conveyance device in the middle of the height alignment device. apparatus.