JPH11313525A - Walking type harvester for root vegetable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walking type small root vegetable harvester capable of continuously and efficiently carrying out a treatment for lifting root vegetables from a field and a treatment for cutting the leaves of the root vegetables. SOLUTION: This walking harvester for root vegetables is obtained by disposing a nipping, lifting and carrying device 9 for nipping, lifting, hanging and rearward and upward carrying the leaf portions of the root vegetables in a field, a positioning, nipping and carrying device A whose nipping-starting end is placed at a position on the back side of the nipping-starting end of the nipping, lifting and carrying device 9 below the device 9 and which is used for arranging the heights of the root vegetable main bodies Wa, while the leaf portions Wb of the hung and carried root vegetables W are nipped from the right and left sides and rearward carried, and a cutter 3 for acting on the leaf portions Wb of the root vegetables whose heights are arranged with the positioning, nipping and carrying device A, on a travel frame having wheels on the right and left sides and having a steering handle 6 in the rear side. A soil-cutting and collapsing member 8 is further disposed at a place near to the starting end of the nipping, lifting and carrying device 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for mechanizing a series of harvesting operations from rooting of root vegetables such as carrots and radishes to underground transportation and post-processing. is there.

[0002]

2. Description of the Related Art Conventionally, root crops have been harvested by a manual operation in which root vegetables buried in a field are extracted one by one by hand and then the leaves are cut off with a kitchen knife.

[0003]

The artificial harvesting of root crops involves heavy labor of pulling the root crops out of the field in a bent posture. Therefore, it is desired to realize a mechanized harvester such as a combine. Was. This is a pressing issue for large-scale fields. The present invention realizes and provides a root vegetable harvesting machine in which a series of steps from the extraction of root vegetables to the stage before leaf cutting is mechanized.

[0004]

In order to achieve the above object, according to the present invention, a leaf portion of a root vegetable is sandwiched between a pair of left and right front endless rotating belts which are driven to face each other while being inclined rearward and upward. And a pair of left and right rear endless rotating belts and a pair of left and right guide mechanisms disposed below the pulling portion for pulling the root vegetables upward while pulling the root vegetables from the ground. While guiding and guiding between the mechanisms, a transport device for transporting the root vegetables sent from the pull-out portion rearward by nipping and transporting the upper portion of the leaf portion by driving a pair of rear endless rotating bands is provided, respectively. The rear endless rotating band and the guide mechanism are relatively arranged such that the vertical interval between the rear endless rotating band and the pair of guide mechanisms becomes wider toward the lower side in the transport direction, and the transport root vegetables are not less than a predetermined amount. Downward moving force acts And a pair of rear endless rotating bands to set a clamping force on the root vegetable leaf portion so as to allow downward displacement from the rear endless rotating band, and furthermore, a predetermined force between the left and right guide mechanisms. It is characterized in that a left-right gap in distance is provided.

[0005]

The pull-out portion functions to pull out the root vegetables in the ground and to lift it upward by pinching the leaves protruding above the ground, and the transport device transports the lower portion of the leaves by a pair of guide mechanisms. In the state where the path is formed, a function of providing a conveying action by nipping the upper part of the leaf by the pair of rear endless rotating bands is exhibited. In the transport device, the vertical distance between the guide mechanism and the rear endless rotating band is set to be wider toward the lower side in the transport direction, and the pair of rear endless rotating bands is allowed to allow root vegetables to move downward. As a result, the guide mechanism approaches the root of the leaf as it is transported rearward, and finally comes into a contact transport state in which it is transported in contact with the top of the root vegetable main body. The unit and the unit relatively move up and down, so that the contact conveyance state is maintained. As a result, at the end of the transport device, any root vegetables are unified into a contact transport state, so that the root vegetables can be delivered to a post-processing step such as a cutter device for cutting leaves with a fixed posture and position. Become. Furthermore, since a left-right gap of a predetermined distance is provided between the left and right guide mechanisms, root vegetables of an ungrown size or a size smaller than the specification such as ultra-fine or very small, and the left-right gap by the rear endless rotating band are used to fill the left-right gap. The sorting action of passing through, lifting, and sending out of the transport path is exhibited. When the gap in the left-right direction can be adjusted and set, the size of root vegetables as a selection standard can be selected, which is more convenient.

[0006]

Therefore, in the root vegetable harvesting machine of any one of claims 1 and 2, a series of steps from the extraction of the root vegetables from the ground to before the post-processing of the cutter device can be mechanized, and the subsequent steps can be performed. By aligning the root vegetables delivered to the processing in a certain posture and position, the mechanized processing can be performed smoothly and stably.In addition, root vegetables can be selected during transportation, and labor can be reduced while contributing to improved harvesting efficiency. Was.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall side view of a walking-type root crop harvester, and FIG. 2 is a plan view of a front portion thereof. 1 is a drawing unit, 2 is a transport device, 3 is a leaf cutting device, and 4 is a harvester. Reference numeral 5 denotes a traveling wheel, 6 denotes a steering handle, and E denotes an engine.
The pulling-out unit 1 is provided with a pair of right and left weeding tools 7 at the tip thereof, and is equipped with a conveyer-type sandwiching conveyor device 9 extending immediately after the weeding tool 7 and the leaf cutting device 3. I have. The nipping conveyor device 9 includes a pair of left and right conveyor belts 11 and 11 that are driven while being opposed to each other in a rear-up inclined posture.
It is composed of In addition, 0 is a rocking ski to loosen the root vegetables. The transport device 2 includes the above-described pair of left and right transport belts 11, 11 and a pair of left and right guide mechanisms 12, 12 disposed below the transport belt. The guide has a function of transporting the root vegetables sent from the pull-out portion backward by nipping and transporting the upper portion of the leaf portion by driving the pair of transport belts 11 and 11.

As shown in FIGS. 3 to 5, the guide mechanism 1
Reference numeral 2 denotes a chain 15 provided with a roller 14 rotatable around the horizontal axis Y for each chain link 13.
The roller 14 is attached to the chain link 13 in a state in which a spring 16 generates an urging force in the opposite direction,
Therefore, the leaves of the root vegetables are opposed to the left and right rollers 14, 14.
, And receives the rearward transfer force, the transfer speed of which is substantially the same as the speed by the conveyor belt 11.
Then, the upward rising angle of the guide mechanism 12 is set to be extremely gentle so that the vertical interval between the transport belt 11 and the guide mechanism 12 becomes wider toward the lower side in the transport direction. The pair of guide mechanisms 12, 12 are disposed so that a left-right gap S of a predetermined distance exists between the left and right rollers 14, 14 in a free state in which the root vegetables are not sandwiched. A gap adjusting mechanism L capable of changing and setting the length of the gap S is provided. That is, a guide member 18 having a U-shaped cross section for guiding the moving path of the chain 15 is provided, and the position of the guide member 18 in the left-right direction can be changed by the long fitting holes 18a for the front and rear set bolts.

[0009] As shown in FIG.
1, 11 are provided with a number of rolling wheels 17 for pressing them in the direction in which they are present to generate a pinching force of the leaves, and transporting them from the front end to a portion corresponding to the front end of the guide mechanism 12. In the front part 11a of the belt, the rolling wheel 1 is set so that a strong pinching force acts to surely pull out the underground root vegetables.
7, the strength of the biasing spring 8 is set, and the leaf clamping force at the rear conveyor belt rear portion 11b is reduced by employing a spring 10 which is thinner than the spring 8 at the conveyor belt front portion 11a. Is set to The rotary cutter 1 is located at a position behind the guide mechanism 12.
4, a leaf cutting device 3 for cutting off the leaf portion of the root vegetable is arranged, and the leaf cutter of the root vegetable is lifted and the rotary cutter 1 is removed.
In order to make the cutting posture suitable for the cutting process of No. 4, a pick-up transport mechanism 19 is provided over the guide mechanism 12 and the rotary cutter 14. The harvesting unit 4 includes a chute 4A for collecting the root vegetables, and a guide plate 4B for guiding the cut leaves backward.

The main function of the harvesting operation is as follows. The leaves are pinched and lifted rearward and upward with a strong pinching force by the front portion 11a of the conveyor belt, so that the root vegetables in the ground are pulled out. And guide mechanism 1
The root force is transported rearward and upward by the transfer force of Step 2, but since the inclination of the guide mechanism 12 is gentle, the upper surface of the root vegetable body gradually approaches the roller 14, and at the rear portion of the guide mechanism 12, the root material main surface is applied to the roller 14. The contact conveyance state is reached. From then on, at the end of the conveyor belt 11, the root vegetables must be removed at the end of the conveyor belt 11 because the rearward conveyance force is transmitted to the root plants and the sliding movement is allowed to move downward under the leaves due to the weak clamping force of the conveyor belt rear portion 11b. It will be in contact transport state,
In addition, the root vegetables having a size outside the specified range are lifted above the guide mechanism 12 to the smaller side by the gap adjusting mechanism L, and are discharged from the end of the transport belt 11. Then, the leaf portion is moved to a position slightly above the base by the re-holding transport mechanism 19, and the leaf portion can be cut at a position as close to the root vegetable body as possible while maintaining a constant posture and position with respect to the leaf cutting device 3 to be held down next. become. After the leaf cutting device 3, the root vegetable body is collected by the shoot 4A, and the leaves are released to the field.

In this embodiment, a set of conveying belt front portions 11
Although a corresponds to the front endless rotation band and the rear end portion 11b of the conveyor belt corresponds to the rear endless rotation band, they may be formed by differently configured transfer belts or transfer chains. As the guide mechanism 12, in addition to the above-mentioned chain 15 with rollers,
A pair of guide members having a simple pair of guide rods or a plurality of rollers on the lower surface rotatable about the left and right axes, and a leaf portion pushed right above the guide members to convey the conveyor belt 12 It is also conceivable to use a contact-type drive transfer body provided to generate a transfer force at the same speed. Further, the harvesting unit of this structure may be mounted on a riding type root crop harvester.

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 accompanying drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a root crop harvesting machine.

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

FIG. 3 is a plan view showing the structure of a guide mechanism.

FIG. 4 is a cross-sectional view of a transfer device.

FIG. 5 is a partial side view showing the structure of a chain with rollers.

FIG. 6 is a plan view showing the structure of the sandwiching conveyor device.

[Explanation of symbols]

 Reference Signs List 3 Cutter 5 Wheel 6 Control handle 7 Pretreatment device 8 Breaking body 9 Nipping pulling and conveying device 12 Ascent position regulating part A Alignment nipping and conveying device C Introducing space S Gap W Root vegetable Wa Root vegetable body Wb Leaf portion

[Procedure amendment]

[Submission date] April 30, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Walking root crop harvester

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as a walking-type root crop harvesting machine, for example, as shown in Japanese Utility Model Application Laid-Open No. 60-89826, there is an aircraft that runs on left and right wheels and has a rear steering handle. A leaf cutting root vegetable body, comprising left and right sandwiching and conveying belts for gripping and pulling the root portion of the root vegetable in the field and suspending and transporting it upward and rearward, and a cutter for cutting the suspended and transported root vegetable leaf portion. Are known to be collected.

[0003]

The walking-type root crop harvesting machine having the above-mentioned structure has a small-body structure with a small-sized wheel-traveling type that can be easily introduced even in a small field. It has the advantage of being able to realize a simple and inexpensive harvester that can efficiently perform processing up to cutting, transporting and discharging in a series, but it can harvest root vegetables with high quality and is compact and easy to handle. In order to make it a high-performance machine for practical use, it is necessary to make a series of harvesting operations from digging up to cutting of leaves in a small and small space with a high-performance, high-accuracy rational configuration. There was room for improvement in terms of aspect.

[0004] That is, a walking-type agricultural work machine that travels with left and right wheels has an advantage that it can be turned more easily than a machine that travels with a crawler-type traveling device. Since the vehicle can swing up and down around the center, the aircraft body swings up and down and up and down due to unevenness of the ground through which the wheels pass, and the posture tends to be unstable. When the attitude of the machine body is unstable, when the root portion of the root vegetable in the field is held by the left and right holding and conveying belts, pulled out, and suspended and transported rearward and upward, the leaf portion is held by the holding and conveying belt. Is not stable, the cutting position with respect to the root vegetable main body is not constant in the subsequent leaf cutting process, and the length of the leaves remaining in the root vegetable main body becomes uneven.

[0005] In the process of pulling the root vegetables in the field with the sandwiching and conveying belt, the root vegetable pulling-out reaction force acts on the sandwiching and conveying belt. The pulling-out reaction force depends on the rooting condition of the root vegetables and the soil hardness around the root vegetables. For example, the cutting accuracy of the leaves is deteriorated due to a change in the height of the leaves, a change in the leaf height, and the occurrence of leaf shredding.
In addition, the machine is stopped due to the root vegetable pulling-out reaction force, the soil resistance, and the like, so that the operation handling property is deteriorated.

The present invention has been made in view of such a situation, and has an important point in practical use, that is, the leaves are cut at a certain height, the leaves are not left uncut, and the cut ends are not cut. To provide an excellent walking small-sized root crop harvesting machine that realizes uniform leaf cutting, eliminates the need for manual leaf cutting after machine harvesting, and can perform harvesting with high performance and accuracy. Its primary purpose.

[0007]

Means for Solving the Problems [Structure, operation and effect of the invention according to claim 1]

(Structure) In the walking type root crop harvester according to the first aspect of the present invention, the leaves of the root crop in the field are elastically held by a traveling body having wheels on the left and right and a steering handle at the rear. Nipping and pulling transport device that is lifted and suspended and transported rearward and upward, and installed so that the lower end side of the nipping and pulling transport device is separated from the nipping and pulling transport device toward the lower side in the transport direction, A positioning and pinching and conveying device for aligning the height of the root vegetable main body while nipping and transferring the leaf portion of the root vegetable to be conveyed from the left and right and rearward is disposed, and all the opposing clamping operations of the positioning and pinching and conveying device are performed. The surface is configured to elastically clamp the leaf portion, and the vertical alignment width of the clamping operation surface of the clamping / conveying device is reduced with respect to the vertical width of the clamping operation surface of the clamping / pulling-up / conveying device. Sandwich In the transport device portion, the clamping pulling conveying device has a holding force to allow the downward movement of the leaf,
The alignment nipping and conveying device is configured to have a nipping force that allows upward movement of the leaf portion, and includes a cutter that acts on the leaf portion of the root vegetables whose height is aligned by the alignment nipping and conveying device, and is located in the field. A crushing body which rushes into the soil below the root vegetable body and forcibly applies vibration to break the soil at the bottom of the root vegetable body is provided near the starting end of the nipping and pulling and conveying device. .

(Action) According to the above configuration, when the body is advanced by walking operation from the rear of the body, the root vegetables in the field are lifted upward with the leaves being nipped by the nipping / pulling-up transport device, and are pulled upward and rearward. It is suspended and transported.
In this case, the vibrating soil breaker provided near the start end of the nipping / pulling-up / conveying device vibrates to break down the soil at the bottom of the root vegetable main body in the field, loosen the soil at the bottom of the root vegetable main body to be lifted, and soften the soil. The lifted root vegetables that separate the root vegetables from the root vegetables are lifted with low resistance by the nipping and lifting transport device. Accordingly, the root vegetable pulling reaction force acting downward at the start end of the nipping / pulling / up conveying device is relatively small.

[0010] Even if the rooting condition of the root vegetables and the local hardness of the soil at the location where the root vegetables are planted change, the soil at the bottom of the root vegetable main body is loosened, and the soil is removed. Since the root vegetables are separated and the root vegetables are floated, the leaves are pinched and pulled out, so the pulling resistance of the root vegetables is relatively stable,
Variations in the pull-up reaction force acting on the starting end of the nipping / pulling-up / conveying device reduce the adverse effects such as the leaves slipping down and pinching and transporting the leaf tip side, and stably at a certain height from the root vegetable body. The leaf can be nipped and conveyed.

[0011] Then, the root portion of the root vegetable that is nipped by the nipping / pulling-up transport device and transported rearward and upward is transported rearward by the nipping / pulling-up transport device and the alignment nipping / transporting device in the positioning nipping / transporting device. The opposing pinching action surfaces of the alignment pinching / conveying device are configured to elastically pinch and convey the leaves from both right and left sides at any pinching portion in the conveying direction, so that the leaf is often used even when the amount of the leaves is small. Even at this time, the opposing pinching surfaces appropriately pinch and guide the leaves, and the leaves are smoothly moved rearward while allowing the leaves to move up smoothly.

[0012] The nipping action surface of the nipping / pulling-up / conveying device elastically clamps the leaf portion, and the vertical width of the operating surface is aligned to be larger than the up / down width of the nipping / acting surface of the nipping / transporting device. By reducing the vertical width of the pinching action surface of the pinching transport device and elastically pinching and transporting the leaves between the two, the pinching transport of the pinch pulling-up transport device at the upper part of the leaf portion is ensured, In the transport process, the leaves move upward with respect to the alignment nipping and transporting device with less resistance, and the leaves reaching the upper limit are relatively lowered with respect to the nipping and lifting transporting device due to the upper limit regulating resistance of the alignment nipping and transporting device. The height of the root vegetable body is adjusted quickly and accurately with a short conveying stroke backward. Then, the leaf is cut at a predetermined position by a cutter in a state where the height is secured, and the root vegetable body with the cut leaf is dropped and collected.

(Effect) According to the first aspect of the present invention, the soil at the bottom of the root vegetable main body is loosened to separate the soil and the root vegetable, the root vegetables are floated, and the leaves are pinched and pulled out. It is possible to pull out the root vegetables from the field with little resistance and stability, so that the following running along the root vegetables becomes worse due to the effect of the lifting reaction force,
Alternatively, it is possible to reduce the possibility that the leaves are slipped down from the holding portion, that the leaves are torn apart, etc., and that the holding position of the leaves by the holding / pulling-up / carrying device is set at a certain height from the root vegetable main body, and is carried. can do.

In a state where the holding height position is relatively stable, the holding height is accurately held, pulled up, and conveyed rearward and upward, and elastically held and conveyed by the holding / pulling-up conveyance device and the alignment holding / conveying device, thereby conveying the root vegetables. Performing quickly while maintaining a good posture, making the upper and lower widths of the pinching action surfaces of both different, and ensuring the conveyance of the rear of the pinch pull-up conveyance device to the upper part of the back while aligning the leaves in the conveyance process With respect to and
Since the downward movement with respect to the nipping / pulling-up / conveying device is smooth, the variability of the nipping position is reduced and the leaf portion of a certain height is nipped and transported from the root vegetable body. The height can be quickly adjusted and the precision of the subsequent cutting height can be increased.

While the soil at the bottom of the root vegetable body is crushed and loosened, the pull-out reaction force is also reduced and the fuselage is advanced, so that adverse effects such as stopping the fuselage, lowering the working speed, and instability in steering are prevented. In this way, it is possible to obtain a walking small-sized harvester that is excellent in straightness and maneuverability, has high leaf cutting accuracy, and can perform harvesting with high efficiency.

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

(Structure) In the walking type root crop harvesting machine according to the second aspect of the present invention, the pretreatment device according to the first aspect of the present invention is configured to raise a leaf portion of the root vegetable in a field in front of the nipping and pulling and conveying apparatus. Has been deployed.

(Action) According to the above configuration, the roots of the root vegetables in the field are firstly acted upon by the pre-processing device located in front of the fuselage, so that the leaves extending or falling close to the ground are surely raised. Then, it reaches the starting end of the nipping / pulling-up conveyance device.

(Effect) According to the second aspect of the present invention, the leaves can be reliably guided to the nipping / pulling-up / conveying device without leakage, and the roots in the field can be reliably nipped and pulled. .

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall side view of a walking type root crop harvester according to the present invention, and FIG. 2 shows a plan view of its front part. Cutter 3, a recovery unit 4, a traveling wheel 5, a steering wheel 6, and an engine E.

The drawing unit 1 is provided with a pair of left and right weeding tools 7, 7 as a leaf pretreatment device for raising the leaves Wb of the root vegetables W in the field at the front end of the machine body. It has a structure in which a nipping / pulling / up conveying device 9 is provided over the cutter 3.
Is constituted by a pair of left and right transport belts 11 and 11 which are driven to be opposed to each other in a rear-upward inclined posture. In the vicinity of the starting end of the nipping / pulling-up / conveying device 9, a soil crushing body 8 is provided, which rushes into the soil below the root vegetable main body Wa and is forcedly vibrated by a driving force to crush the soil. ing.

As shown in FIG. 1 and FIG.
Is composed of the above-described nipping / pulling-up / conveying device 9 and a positioning / nipping / nipping / conveying device A arranged below the latter half thereof. The leaf portion Wb of the root vegetable W is moved right and left ascending position regulating guide portion 12.
The upper portion of the leaf portion Wb is pinched and conveyed by the pair of conveying belts 11 of the pinch-pulling-up / conveying device 9 while being guided in between, so that the root vegetables W sent from the pull-out portion 1 are suspended and directed rearward and upward. It has a function to transport.

As shown in FIGS. 3 to 5, the ascending position regulating guide 12 is provided with a horizontal axis Y for each chain link 13.
Chain 15 equipped with rollers 14 rotatable around it
It is composed of Here, the roller 14 has a spring 16
Is attached to the chain link 13 in a state where an urging force is applied toward the guide route side of the leaf portion Wb, and the leaf portion Wb of the root vegetable W faces the opposing working surfaces of the left and right ascending position regulating guide portions 12, that is, the left and right. It receives the rear conveyance force elastically sandwiched between the peripheral surfaces of the rollers 14 facing each other, and the vertical width of the working surface thereof is smaller than the vertical width of the pair of left and right transport belts 11 of the nipping and pulling transport device 9, The transport speed is almost the same as the speed by the transport belt 11.
Then, as shown in FIG. 1, the rearward inclination angle of the alignment nipping / conveying device A is set to be smaller than that of the nipping / pulling / conveying device 9, and the vertical movement between the nipping / pulling / conveying device 9 and the alignment nipping / conveying device A is performed. It is configured such that the interval becomes wider toward the lower side in the transport direction.

The pair of right and left ascending position regulating guides 12 are disposed so that a left-right gap S of a predetermined distance exists between the left and right rollers 14 in a free state in which the leaves Wb of the root vegetables W are not sandwiched. In addition, a gap adjusting mechanism L for changing the size of the gap S in the left-right direction is provided at the rear of the ascending position regulating guide section 12. That is, a chain guide 18 having a downward U-shaped cross section for guiding the movement path of each chain 15 and the front and rear set bolts 1
8b and the long hole 18a to adjust the left and right position,
The size of the gap S can be changed and set.

As shown in FIG.
On the inner periphery of each of the left and right conveyor belts 11, a number of rolling wheels 17 for pressing them toward the conveyance path side to generate a pinching force of the leaf Wb are pressed, and are aligned and pinched from the front end. The front part 1 of the conveyor belt up to the start end of the conveyor A
In 1a, the strength of the spring 10a acting on the rolling wheel 17 is set so that a strong pinching force enough to pull out the underground root vegetables W is set, and in the rear conveyor belt rear portion 11b on the rear side, The clamping force is at the front of the conveyor belt 11
The spring 10b, which is thinner than the spring 10a, is employed so as to be weaker than the holding force at the point a. In addition, an introduction space C is formed at the start end of each of the left and right conveyor belts 11, which widens greatly forward, and, subsequently, a nipping introduction path narrowing rearward at an acute angle is continuously provided.

At the rear position of the positioning and holding device A,
A rotary cutter 3 for cutting off the leaf Wb of the root vegetable W is disposed, and a leaf cutter for holding the leaf Wb of the root vegetable W and transporting the leaf Wb to the cutter 3 at a position above the alignment holding transport device A. A transport device B is provided.

The collecting section 4 is composed of a chute 4A for guiding and discharging the root vegetable body Wa that has been subjected to the leaf cutting process and falling to the lateral side of the machine body, and a guide plate 4B for guiding the cut leaf portion Wb to the rear of the machine body. Have been.

The main operation of the harvesting operation will be described. With the advance of the machine body, first, the leaves Wb of the root vegetables W in the field are raised by a weeding tool 7 as a leaf pre-processing device, and the holding / pulling / up conveying device is used. After being guided to the introduction space C which widens greatly at the start end of No. 9, it is guided between the left and right transport belt front portions 11 a via the sandwiching introduction path which narrows rearward at an acute angle. The leaf portion Wb is nipped by the left and right conveyor belt front portions 11a with a strong clamping force and lifted upward and rearward, so that the root vegetables W are pulled up from the field, and subsequently, the conveyor belt rear portion 11 in the nipping and pulling and conveying device 9 continues.
b and the positioning / nipping / conveying device A both convey it upward and backward. At this time, since the distance between the nipping / pulling-up transporting device 9 and the alignment nipping / transporting device A is increased toward the downstream side of the transporting, the root vegetable body Wa to be transported gradually approaches the lower surface of the alignment nipping / transporting device A, The upper surface of the root vegetable main body Wa is brought into contact with the roller 14 of the ascending position regulating guide portion 12 to be guided. Then, after that, due to the weak clamping force of the rear portion 11b of the conveyor belt, the rearward conveying force is reduced to the root vegetable W.
At the end of the conveyor belt 11, the root vegetable main body Wa is moved by the rollers 14 of the ascending position regulating guide 12 at the end of the conveyor belt 11.
The root vegetables W are arranged in the same height by the leaf cutting and holding device B, and the cutter 3
Supply guide.

In the above embodiment, the first half of the picking / pulling / up conveying device 9 for raising the root vegetables W and the rear half of aligning the height of the root vegetable main body Wa in cooperation with the positioning / nipping / conveying device A are continuous. However, the front half and the rear half of the nipping / pulling-up conveying device 9 may be constituted by differently configured conveying belts or conveying chains, respectively.

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]

[Figure 1] Overall side view of root crop harvester

FIG. 2 is a schematic plan view showing the whole root crop harvester.

FIG. 3 is a plan view showing the rear part of the alignment holding and conveying device.

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

FIG. 5 is a plan view showing a part of a guide member.

FIG. 6 is a plan view of the nipping / pulling-up conveyance device.

[Description of Signs] 3 Cutter 5 Wheel 6 Control handle 7 Pre-processing device 8 Break-down body 9 Nipping / pulling-up / conveying device 12 Elevation position regulating guide part A Alignment / Nipping-and-conveying device W Root vegetable Wa Root vegetable body Wb Leaf portion

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

Claims (4)

[Claims] 1. A traveling machine having wheels (5) on the left and right sides and a steering handle (6) on the rear side sandwiches a leaf (Wb) of a root vegetable (W) in a field and pulls it up and rearward upward. A nipping / pulling / conveying device (9) for suspending / conveying, and the conveying device (9) below the nipping / pulling / conveying device (9)
Position the clamping start end on the rear side of the clamping start end of
A position alignment holding and conveying device (A) for aligning the height of the root vegetable body (Wa) while moving the leaf portion (Wb) of the root vegetable (W) suspended and transported from the left and right and moving it rearward; A cutter (3) that acts on the leaves (Wb) of the root vegetables (W), the heights of which are aligned by the nipping and conveying device (A), and a soil breaking body near the starting end of the nipping and lifting and conveying device (9). (8) A walking type root crop harvester characterized by having (8). 2. The nip-pulling-up / conveying device (9) has a nip force allowing a downward movement of the leaf (Wb), and the alignment nip-conveying device (A) moves upward of the lobe (Wb). The walking type root crop harvester according to claim 1, which has an allowable pinching force. 3. An introduction space (C) is formed at the start end of the nipping / pulling-up / conveying device (9). The introduction space (C) widens greatly forward, and subsequently, a nipping introduction path narrowed rearward at an acute angle is continuously provided. The walking type root vegetable according to claim 1 or 2, wherein at least a starting end side of the alignment holding and conveying device (A), right and left ascending position regulating guide portions (12) are opposed to each other with a gap (S). Kind harvester. 4. A processing device (7) for raising a leaf (Wb) of a root vegetable (W) in a field is provided in front of the nipping / pulling-up / conveying device (9). The walking-type root crop harvester according to claim 1.