JPH11239406A - Harvester for vegetable with formed head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester for a vegetable with a formed head for sufficiently nipping the lower part of a vegetable with a formed head, firmly tightening the head, by an upper nipping face part of an elastic nipping body for elastically deforming in nipping the lower part of the vegetable with the formed head and a lower nipping face part having a larger projected amount than that of the upper nipping face part. SOLUTION: This harvester for a vegetable with a formed head is equipped with a traveling body 1, a cutter 139 and a conveyor 25 for nipping and transporting a vegetable with a formed head A from which a root part B is cut off by the cutter 139. The nipping conveyor 25 has a pair of endless rotating bodies 35 for nipping and transporting the vegetable with the formed head A by opposing inside rotating parts, front guide bodies for guiding the front returning parts of the endless rotating bodies 35, tension members and rear guide bodies for guiding the rear returning parts of the endless rotating bodies 35. The endless rotating bodies 35 comprise elastic nipping bodies 47 which are elastically deformed in nipping the vegetable with the formed head A by the inside rotating parts, nip the lower part of the vegetable with the formed head A and have upper and lower elastically deformable nipping face parts 47a and 47b. The lower nipping face parts 47b are formed protrusively in the nipping direction than the upper facing face parts 47a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head vegetable harvester, and more particularly, to a head vegetable harvester for picking leafy vegetables such as Chinese cabbage.

[0002]

2. Description of the Related Art Conventionally, when head vegetables such as Chinese cabbage are harvested from a field, leaf vegetables such as Chinese cabbage are usually manually tilted one by one because the outer leaves of the head vegetables are easily damaged. In the state, the root of this head vegetable,
The roots of the head vegetables and the outer leaves at the base of the head are cut and removed, and the head vegetables are arranged in a field. When the head vegetables are packed in boxes, the head vegetables are further finished for shipping and packed in boxes. ing.

[0003] However, in harvesting head vegetables, since the operation from cutting from the field to finishing work for shipping is performed manually for each head vegetable, the work efficiency is poor and excessive labor is required. In addition, after cutting the head vegetables from the field, in order to arrange these head vegetables in the field and prepare for the finishing work for shipping, the outer leaves of the head vegetables are easily damaged, and the outer leaves of the head vegetables and the head vegetables There is a problem in that mud is easily adhered to the cut portion obtained by cutting the root portion of the soil, and is likely to cause a reduction in commercial value.

Therefore, for the purpose of improving work efficiency and reducing labor and preventing muddy soil from adhering to a cut portion obtained by cutting the outer leaves and roots of the head vegetables, a traveling vehicle and a vehicle body are provided in front of the traveling vehicle. A cutting device that cuts the root portion of the head vegetable in the planted state of the head vegetable planted in the field, and a transport device that sandwiches and transports the head vegetable whose root portion has been cut in the cutting device in the planted state An adjustment work table provided on the traveling vehicle body for finishing the head vegetables conveyed by the conveyance device for shipment, and a finishing work unit for boxing and sealing the head vegetables finished on the adjustment work table. Heading vegetable harvesting machines have been proposed.

[0005]

The above-mentioned conveying device is provided with a pair of endless rotators which are provided so as to be rotatable in opposite directions to each other, and which pinch and transport the headed vegetables in a planted state at opposing inner circling portions. A pair of endless revolving bodies of the nipping conveyor having a row body each have a clamping surface for clamping head vegetables at the opposing inner circulation portions, and the opposing clamping surfaces are vertical. A configuration is adopted in which they move in parallel at the same interval in the direction.

However, in a configuration in which the sandwiching surfaces of the headless vegetables of the pair of endless revolving bodies move in parallel at the same interval in the vertical direction in the opposing inner circulation parts, the heading vegetables are sufficiently nipped and transported. It is difficult to do. That is, for example, in the case of head vegetables such as Chinese cabbage, the head portion of the head vegetables is usually the hardest, the upper part of the head part is relatively soft, and the head part is relatively soft and the head part is higher than the root part. Since the diameter of the head vegetables is usually different, in such a configuration that the holding surface for holding such head vegetables moves in parallel at the same interval in the vertical direction in the opposing inner circulation part, the head vegetables are sufficiently It may be difficult to pinch and convey it, and if the pinching surface pinches the relatively soft heading part above the root part of the heading vegetable that is most firmly heading, the heading vegetable can be sufficiently pinched There is a problem that the head vegetables may fall off the holding surface without falling without falling.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has an upper holding surface portion of an elastic holding body which elastically deforms when holding a lower portion of a head vegetable, and a lower holding portion having a larger projection than the upper holding surface portion. It is an object of the present invention to provide a headed vegetable harvesting machine provided with a conveying device having a holding conveyor capable of sufficiently holding and firmly conveying a lower part of a headed vegetable that is firmly headed on a surface portion.

[0008]

According to a first aspect of the present invention, there is provided a head-cropping vegetable harvesting machine, comprising: a traveling vehicle body; and a head-vegetable vegetable planted in a field provided in front of the traveling vehicle body and planted in a field. A cutting device having a cutter for cutting the head vegetable, which is provided on the traveling vehicle body and whose root is cut by the cutter of the cutting device, in a planted state and transporting the vegetables from the front side to the rear side. And a conveying device, wherein the clamping conveyor is provided so as to be rotatable in opposite directions to each other, and a pair of endless rotations for clamping and transporting the head vegetable in a planted state at opposing inner circulation portions. Line and
A rotatable front guide that engages with the front folded portions of the pair of endless revolving bodies and guides the front folded portions, and a rear end of the endless revolving body that is spaced apart behind the inside of the front guide. A rotatable tension member that engages and guides the inner turning portions, and a rotatable rear side that engages the rear turning portions of the pair of endless turning members and guides the rear turning portions. And a pair of endless revolving bodies, each of the pair of endless revolving bodies having an elastic clamping body that elastically deforms and clamps a lower part of the heading vegetable when the heading vegetable is sandwiched between opposing inner circulation parts. The elastic holding bodies of the pair of endless revolving bodies each have a holding surface portion that can be elastically deformed up and down along the elastic holding body, and the lower holding surface portion projects in the holding direction from the upper holding surface portion. Is to form.

[0009] Then, the traveling vehicle is carried into the field, the cutter of the cutting device provided in front of the traveling vehicle is arranged on the ridge, the traveling vehicle is traveled, and the pair of endless revolving bodies of the sandwiching conveyor are opposed to each other. By rotating the inner revolving part toward the inside rearward in the opposite direction to each other, each of the head vegetables on the ridge is sequentially guided as it is in the planted state by the cutter, and these head vegetables are planted. In this state, the lower portion of each head vegetable is successively sandwiched between opposing inner circling portions of the pair of endless circulating bodies. In addition, the lower portion of each head vegetable is held, and the root of each head vegetable in a planted state is sequentially cut from a predetermined position by a cutter.

[0010] At this time, that is, when the lower portion of each headed vegetable is sandwiched between the opposing inner circling portions of the pair of endless circling members, the opposing inner circling portions of the pair of endless circulating members are elastically clamped. The upper and lower clamping surfaces of the body are elastically deformed, respectively, and the lower portions of the head vegetables are clamped by the upper and lower clamping surfaces, respectively, and the lower clamping surface is more elastically deformed than the upper clamping surface and is deformed to the lower clamping surface. The lower part of each head vegetable that is firmly headed below the position where the upper holding surface part holds is strongly held.

[0011] Therefore, the lower portion of each head vegetable that is firmly headed by the upper holding surface portion of the elastic holding body that elastically deforms when holding the lower portion of each head vegetable and the lower holding surface portion that projects more than the upper holding surface portion is sufficient. Is sandwiched between. And
Each head vegetable whose root has been cut and removed in a state where it is held in a planted state by the elastic holding bodies of the pair of endless rotating bodies opposed to each other inwardly rotating parts is successively secured toward the rear in the transport direction. Transported to

According to a second aspect of the present invention, the elastic holding body is formed integrally along the outer peripheral surface of the non-stretchable endless revolving belt. Is the thing.

[0013] The elastic holding body is rotated by the non-stretchable endless revolving belt without expansion and contraction. And is transported reliably.

According to a third aspect of the present invention, there is provided a head-cropping vegetable harvesting machine according to the first aspect, wherein the lower clamping surface portion is a protruding end of a clamping ridge integrally formed along a lower portion of the elastic clamping body. Is formed in

[0015] The lower portion of each head vegetable is firmly formed at the lower holding surface portion of the protruding end of the holding ridge having a large protrusion amount of the elastic holding body which elastically deforms when holding the lower portion of each head vegetable. It is pinched and reliably transported rearward.

According to a fourth aspect of the present invention, there is provided a head-cropping vegetable harvesting machine according to the first aspect, wherein the front-side folded portions of the pair of endless revolving bodies are provided to be inclined inward in a direction approaching each other. The upper end of the pair of endless revolving bodies opposed to each other, which is guided by being engaged with the front guide body and the tension member, respectively, and moves between the front guide body and the tension member. To form a carry-in entrance for carrying in a lower portion of the head vegetable that is separated from the head and expanded forward.

The front guides and the tension members, which are inclined toward the inside in the direction in which they approach each other, engage the front folded portions of the pair of endless revolving bodies, and the front guide and the tension member are engaged. By forming a carry-in port for carrying in the lower part of the head vegetables at the inner circling portion of the pair of opposed endless circulating bodies that move between The inner circling portions are inclined toward the inside in the direction in which they approach each other, and the elastic holding bodies of the inner circling portions facing each other are lowered according to the inclination, and the elastic nip of the opposing inner circling portions are lowered. The lower part of the lower part of the head which is brought into the carry-in entrance by the body and firmly heads is sufficiently clamped.

Also, since a carry-in port is formed above the cutter and spaced apart to carry in the lower portion of the head vegetable, the lower portion of the head vegetable is carried into the carry-in port, and the elasticity of the inner revolving portion facing the lower portion is formed. At the same time as being securely held by the holding body, the root portion of the head vegetable is reliably cut from a predetermined position by the cutter.

According to a fifth aspect of the present invention, there is provided a head harvesting machine according to the first or second aspect, wherein the front guide, the tension member, and the rear guide have an engagement groove opened on the outer peripheral surface. Each of the endless revolving belts of the pair of endless revolving members is formed by a pulley, and has an endless engagement ridge that engages with an engagement groove of each of the pulleys on an inner peripheral surface.

The pair of endless revolving bodies are turned by the endless engaging protrusions on the inner peripheral surface of the endless revolving belt engaging with the engaging grooves of the respective pulleys. When sandwiching and transporting the head vegetables at the inner revolving portion of the endless revolving body, the weight of the head vegetables causes the pair of endless revolving bodies to move in the transport direction of the head vegetables by each pulley without coming off from each pulley. It is turned around.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a traveling vehicle body. The traveling vehicle body 1 comprises a vehicle body 2, a traveling body 4 provided at a lower portion of the vehicle body 2 and having endless tracks 3 which can freely rotate on both sides thereof, 2, a drive mechanism 10 having an engine 5, a tank and a pump 6, a mission 7, a hydraulic motor 8 and a speed reducer 9, which are interlocked and connected to each other. The endless track zones 3 on both sides of the traveling body 4 are respectively driven in a revolving manner, and the traveling vehicle body 1 travels straight and turns in the endless track zones 3 on both sides.

Further, the vehicle body 2 has a board 11 formed in a substantially rectangular shape, and the board 11 is provided with an operator 12 boarded on a front portion on one side in the left-right direction with respect to the traveling direction. A driver's seat 14 having a control device 13 for controlling the drive mechanism 10 is provided.

Further, front support frames 16 are integrally formed at the front left and right portions of the base 15 of the traveling body 4 to project upward, respectively, and the left and right front support frames 16 have their upper ends at the same height. Have. Further, rear support frames 17 are respectively provided on the right and left sides of the vehicle body 2 so as to protrude upward from the left and right front support frames 16 integrally therewith.
17 have upper ends at the same height. Further, intermediate support frames 18 are integrally provided on the left and right sides of the vehicle body 2 located in front of the left and right rear support frames 17, respectively, toward the front and upper.

A front link 20 in the front-rear direction is rotatably mounted on the left and right front support frames 16 by a support shaft 19 so as to be vertically rotatable. The rear links 22 in the front-rear direction are each pivotally mounted in a vertically rotatable manner. Further, a main body of the cylinder device 23 is pivotally mounted on a left and right connecting frame (not shown) connected between the intermediate supporting frames 18 by a supporting shaft (not shown) so as to be rotatable vertically. A left-right connecting frame (not shown) in which the tip of the rod of the cylinder device 23 is connected between the left and right rear supporting frames 17.
Is rotatably mounted on a support shaft (not shown) so as to be vertically rotatable.

Next, reference numeral 24 denotes a transport device for transporting the head vegetables A such as Chinese cabbage whose roots have been cut in a planted state. The transport device 24 holds the head vegetables A in a planted state and Conveyor 25 to be conveyed toward
25, a lower and upper conveyor 26 for placing the lower end portion of the headed vegetable A in the planted state, which is conveyed while being sandwiched and conveyed by the conveyer 25, and conveys the rearward upward direction.
And a conveyor frame 27 of the sandwiching conveyor 25 and a conveyor frame 28 of the placing conveyor 26.
And are integrally connected by a plurality of connecting pieces 29 in the vertical direction arranged at predetermined intervals in the front-rear direction on both left and right sides.

The upper ends of the left and right front links 20 are rotatably mounted on the front left and right connection pieces 29 by support shafts 30, respectively, at a predetermined position behind the front left and right connection pieces 29. The upper ends of the left and right rear links 22 connect the left and right rear links 22 to the left and right front links.
They are arranged in parallel with 20 and are pivotally mounted on pivots 31 respectively.

The transfer device 24 is supported by the cylinder device 23 via the front left and right connecting pieces 29 and the rear left and right connecting pieces 29 so as to be inclined rearward and upward at a predetermined inclination angle. When the rod of the cylinder device 23 expands and contracts, the transfer device 24 is rotated in the front-rear direction via the front left and right connection pieces 29 and the rear left and right connection pieces 29, and The cutting device, which will be described later, is moved downward to a working position for cutting the root portion of the head vegetable A, and from this working position, the cutting device is lifted upward and rearward and moved to a non-working position separated from the ground. It has become so.

Next, the sandwiching conveyor 25 is composed of the conveyor frame 27 having the frame members 32 in the front-rear direction, which are disposed and fixed at both sides in the left-right direction, and the frame members 32 on both sides of the conveyor frame 27. A pair of endless revolving bodies 35 which are provided so as to be able to revolve in opposite directions along with each other and form a clamping space 34 for clamping and transporting the headed vegetables A in a planted state at the opposing inner revolving parts 33. And

Further, the holding conveyor 25 further includes a rotatable rear guide 37 for engaging the rear folded portions 36 of the pair of endless revolving bodies 35 to guide the rear folded portions 36, respectively. The front side folded portion 38 of the pair of endless revolving bodies 35 is engaged with the front side folded portion 38, respectively, and the rotatable front side guide body 39 guides the front side folded portion 38. Carrying-in adjustment means 43 each having a rotatable tension member 40 for urging and guiding the vicinity of the front end of the inner circling portion 33 of each endless circulating body 35 in the clamping direction of the head vegetable V. Have.

Further, the carry-in adjusting means 43 is provided on the inclined portion 41 of the inner circling portion 33 of the pair of endless circulating members 35 which move between the front guide member 39 and the tension member 40. A carry-in port 42 of the head vegetable A that is separated from the cutter and described below and is opened forward is formed, and the front guide 39 and the tension member 40 are moved to move the carry-in port 42. It is configured to be adjustable in scale.

The pair of endlessly rotating bodies 35 are each formed by an endlessly rotating belt body 44 having a predetermined width.
The pair of endless revolving belt bodies 44 includes a non-stretchable endless revolving belt 46 having endless engaging ridges 45 protruding inward in parallel with the upper and lower surfaces of the inner peripheral surface. The head vegetables A are formed integrally with the endless traveling belt 46 along the outer peripheral surface of the traveling belt 46 at the same width as the endless traveling belt 46.
And an elastically deformable elastic holding member 47 which elastically deforms when holding the head and holds the lower part of the head vegetable A.

The elastic holding member 47 is made of a material that does not damage the outer leaves of the head vegetable A when the head vegetable A is held, and is formed of an elastically deformable material such as a sponge member. Each of the holding surfaces 47a and 47b is elastically deformable when the head vegetables A are held up and down along 47. The lower holding surface 47b protrudes from the upper holding surface 47a by a predetermined amount in the holding direction. Is formed.
The upper holding surface portion 47a is formed on the outer surface of the thin plate-shaped portion 47c, and the lower holding surface portion 47b is formed of a thick endless holding protrusion 48 integrally formed along the lower portion of the elastic holding member 47. Is formed at the protruding end portion.

The left and right rear guides 37 are pulleys fixed to the upper end of a vertical drive shaft 50 rotatably supported by bearings 49 at the rear ends of the left and right frame members 32. The left and right drive pulleys 51 are formed on the outer peripheral surface to respectively engage the upper and lower engaging ridges 45 of the endless revolving belt body 44 above and below the outer peripheral surface. Each has a mating groove 52.

The left and right frame members 32 are located near the front side of the left and right drive pulleys 51 and the rear end portions of the inner circulation portions 33 of the pair of endless circulation belt bodies 44 are connected to the head vegetables A. Tension pulleys 53 urged and guided in the holding direction are respectively rotatably mounted on shafts, and are provided between opposed left and right drive pulleys 51 and the inner circling portions 33 which move between the left and right tension pulleys 53 and the left and right drive pulleys 51. At the inclined portion 54, a carry-out port 55 for the head vegetables A that is expanded rearward is formed.

Further, the outer revolving portions 56 of the pair of endless revolving belt bodies 44 are positioned in front of the left and right tension pulleys 53 and before and after the left and right frame members 32 toward the respective frame members 32. The right and left tension pulleys 57 and the right and left tension pulleys 58 that urge the outer revolving portions 56 of the pair of endless revolving belt bodies 44 away from the respective frame members 32 are rotatable. Axle mounted.

Next, the carrying-in entrance adjusting means 43 comprises a fixed substrate 61 fixed to the front side portions of the left and right frame members 32 via a base 59 with a plurality of fixing bolts 60, and the left and right fixed substrates 61 An adjustment plate 62 provided rotatably in the direction and fixed to the fixed substrate 61 at a selected position;
And a front guide 39 at the front end.
A support arm 63 in the front-rear direction in which a rotatable shaft is supported, and a coil spring 64 for urging the rear end of the support arm 63
A tension arm 65 rotatably provided in the support arm 63 in the front-rear direction and having the front end portion rotatably supporting the tension member 40; and a tension arm 65 for urging the tension arm 65 so that the tension member 40 is Endless revolving belt body 44
And a coil spring 66 which is always engaged with the inner circling portion 33 in the vicinity of the front end.

The fixed substrate 61 is formed in a substantially rectangular shape.
A shaft support 67 protruding from the front end thereof and rotatably supporting the adjustment plate 62; and a position spaced apart from the shaft support 67 and protruding from the rear end to fix the adjustment plate 62 at a selected position. The supporting portion 67 is formed by a shaft insertion hole 69 penetrating in the vertical direction, and the fixing portion 68 is formed by a pin insertion hole 70 penetrating in the vertical direction.

The adjusting plate 62 has a support shaft 71 projecting from the front end thereof and having a lower portion 71a rotatably inserted into the shaft insertion hole 69 of the fixed substrate 61 and rotatably supported. A plurality of adjustment holes 72 formed and communicated with the pin insertion holes 70 of the fixed substrate 61 and separated in the left-right direction, and fit into the pin insertion holes 70 from one adjustment hole 72 selected from the plurality of adjustment holes 72. The fixing pin 73, the left and right engagement projections 74 which are spaced apart from each other in the middle part thereof and are integrally protruded upward, and the one engagement projection 74 and the adjustment hole 72 And a vertical locking pin 76 fixed to the end of a protruding piece 75 protruding to one side and located between them.

The left and right engagement projections 74 are formed by engagement projections 77 having one engagement projection 74 integrally protruding upward, and the other engagement projection 74 is provided on the other side. The projection 74 is formed by an engagement pin 78 integrally protruding upward, and the engagement projection 77 has a screw hole 79 at an upper end portion. An adjustment bolt 80 that adjusts the distance between them is screwed on the engagement pin 78 so as to be adjustable forward and backward by rotation toward the engagement pin 78, and the adjustment bolt 80 has a lock nut 81.

The lower portion 71a of the support shaft 71 of the adjusting plate 62 is rotatably fitted into the shaft insertion hole 69 of the fixed substrate 61,
The adjustment plate 62 is fixed to the fixed substrate 61 by fitting the fixing pin 73 into the pin insertion hole 70 of the fixed substrate 61 from one adjustment hole 72 selected from the plurality of adjustment holes 72 of the adjustment plate 62. It has become so.

The support arm 63 is integrally fixed to a first arm plate 82 in the front-rear direction and a front end portion of the first arm plate 82 so as to protrude forward.
Arm plate 83.

The first arm plate 82 is formed at a substantially middle portion in the front-rear direction, and is fitted into an upper portion 71b of a support shaft 71 of the adjusting plate 62 and is rotatably supported by a shaft fitting hole 84. And this shaft fitting hole
The first arm plate 82 is screwed to an upper portion 71b of the support shaft 71 in the base 84 via a washer 85 which contacts an opening edge of the shaft fitting hole 84.
And a locking pin 87 integrally projecting from the rear end thereof, and protruding toward one side near the shaft fitting hole 84 and integrally projecting upward. A support plate 89 having a mounting piece 88 attached thereto, and a mounting piece 88 of the support plate 89
The adjusting screw 92 in the front-rear direction has a lock nut 90 and an adjustment nut 91 before and after the mounting piece 88, which is inserted into and retracted from the mounting piece 88.
And

Further, the first arm plate 82 is provided with the first arm plate 82.
The upper end 71b of the support shaft 71 of the adjusting plate 62 is rotatably fitted into the shaft fitting hole 84 of the arm plate 82, and the rear end of the first arm plate 82 is adjusted by adjusting the adjusting plate 62. In the state interposed between the tip of the bolt 80 and the engaging pin 78, between the locking pin 87 at the rear end of the first arm plate 82 and the locking pin 76 of the protruding piece 75. The coil spring 64 is stretched.

Then, the adjusting bolt 80 is pivoted around the upper portion 71b of the support shaft 71 of the adjusting plate 62 by the coil spring 64.
The first arm plate 82 is biased in a direction in which the rear end of the first arm plate 82 is engaged with the front end of the first arm plate 82.

The second arm plate 83 has a vertical plate portion 93 vertically protruding downward from a front end thereof,
A horizontal plate portion 94 protruding horizontally forward from the lower end of the vertical plate portion 93; and a mounting portion 95 formed at the front end of the horizontal plate portion 94. The front guide 39 is tilted toward the carry-in port 42 on the inner side in the direction in which the upper end portions approach each other with respect to the vertical axis when viewed from the front with the use of the upper and lower bolts 96 via the ball bearing 97. And is rotatably mounted at a predetermined inclination angle.

That is, the pair of endless revolving belt members 44
Is inclined backward and upward, and the front guide body 39 tilts its upper end portion forward (in the traveling direction of the harvester) with respect to the vertical axis to a predetermined inclination angle. In a state of being inclined toward the carry-in port 42 in the direction in which the upper ends approach each other with respect to a vertical axis as viewed from the front, and rotatably pivoted at a predetermined inclination angle. It is suspended.

The front guide 39 is a pulley which is rotatably supported as a pulley integrally rotatably supported by the upper and lower bolts 96 via the ball bearing 97 above and below the mounting portion 95 of the horizontal plate portion 94. The upper and lower driven pulleys 98 engage and guide the upper and lower engaging ridges 45 on the inner peripheral surface of the pair of endless revolving belt bodies 44 on the outer peripheral surface. It has a mating groove 99.

Further, the second arm plate 83 is fixed to the vertical plate portion 93 in the vicinity of the vertical plate portion 93, and is integrally fixed with a hollow cylindrical shaft support member 100 in the vertical direction. The support bodies 100 have upper ends formed at the same height.

The tension arm 65 includes a vertical support shaft 10 rotatably fitted to one of the front and rear shaft supports 100.
1 and an arm substrate 103 having a horizontal mounting protrusion 102 on one side, respectively, and an intermediate member 104 integrally protruding downward on the other side of the arm substrate 103 so as to be substantially horizontal toward the other side. Support arm 10 integrally projected in a shape
5 is formed.

Further, an upper and lower bolt in a vertical direction is attached to a mounting portion 106 formed at a front end (front end) of the support arm 105.
The tension member 40 is tilted toward the inner holding space 34 in the direction in which the upper end portions approach each other with respect to the vertical axis when viewed from the front via a ball bearing 109 with a nut 107 and a nut 108 at a predetermined inclination angle. It is mounted on a shaft that is tilted and rotatable.

That is, the pair of endless revolving belt members 44
Is tilted upward and rearward, whereby the tension member 40 tilts its upper end portion forward (in the direction in which the harvester travels) with respect to the vertical axis to a predetermined tilt angle. In a tilted state, and tilted toward the inner holding space 34 in a direction in which the upper ends approach each other with respect to the vertical axis when viewed from the front, the shaft is rotatably mounted in a tilted state at a predetermined tilt angle. Have been.

Further, the tension member 40 is vertically connected as a pulley which is rotatably supported as a shaft integrally with a bolt 107 and a nut 108 via a ball bearing 109 above and below a mounting portion 106 of the support arm 105. The upper and lower tension pulleys 110 are formed on the outer peripheral surface of the pair of endless revolving belt bodies 44.
It has an engaging groove 111 for engaging and guiding the upper and lower engaging ridges 45 on the inner peripheral surface of each.

A support shaft 101 of the arm substrate 103 is rotatably fitted to one of the front and rear support members 100, and the lower end opening edge of the support member 100 to which the support shaft 101 is fitted is attached. By screwing a bolt 113 to the support shaft 101 via a washer 112 in contact therewith, the second arm plate 83
An arm substrate 103 is mounted on the support shaft 101 so as to be rotatable in the front-rear direction.

Further, the mounting projection 10 of the arm substrate 103
The coil spring 66 is stretched between 2 and the front end of the adjusting screw 92 in the front-rear direction provided on one side of the first arm plate 82, and the tension arm 65 is urged by the coil spring 66. The upper and lower tension pulleys 110 of the tension member 40 are always engaged with the inner traveling portions 33 of the pair of endless traveling belt bodies 44.

Next, the placing conveyor 26 comprises an inclined portion 114a inclined rearward and upward along the lower side of the left and right frame members 32 of the sandwiching conveyor 25, and the inclined portion 11a.
4a, the horizontal portions 114b protruding rearward from the rear ends of the left and right frame members 32 and extending on the boarding plate 11 are respectively formed and disposed on the left and right sides relative to each other. The conveyor frame 28 has a frame member 114 in the front-rear direction.

The placing conveyor 26 is located at the lower rear part of the entrance 42 of the sandwiching conveyor 25 and is rotatably supported between the front ends of the inclined portions 114a of the left and right frame members 114. A left-right driven roller 115, a left-right driving roller 116 rotatably mounted on a shaft between the rear ends of the horizontal portions 114b of the left and right frame members 114, and a front of the driving roller 116. A plurality of rotatable tension rollers 11 disposed at a predetermined distance from the front end of the horizontal portion 114b and the driven roller 115;
7 and.

The placing conveyor 26 is located below the inner rotating portions 33 of the pair of endless rotating belt bodies 44 of the sandwiching conveyor 25, and the plurality of tension rollers
An endless revolving belt 118 formed of a flat belt or the like is rotatably suspended between the driven roller 115 and the driving roller 116 via 117.

The endless revolving belt 118 is revolved in the same direction and at the same speed as the inner revolving parts 33 of the pair of endless revolving belt bodies 44 facing each other. The lower end of the head vegetable A, which is nipped by the inner rotating portion 33 facing the belt body 44 and transported in a planted state, is placed on the rotating upper portion 119 and transported.

In addition, the revolving upper portion 119 of the endless revolving belt 118 which moves between the inclined portions 114a of the left and right frame members 114 is moved as a transporting portion for lifting and transporting the headed vegetables A rearward and upward. Horizontal parts of left and right frame members 114
The upper traveling part 119 of the endless traveling belt 118 that moves between 114b is adapted to move as a pick-up part for picking up the head vegetables A.

Next, a first gear case 120 is fixed on the traveling vehicle body 1, and an input shaft 120 a of the first gear case 120 is connected to a reduction gear 9 of the drive mechanism 10 via an interlocking shaft 121.
The universal joint 124 at the other end of the longitudinal transmission shaft 123 is connected to the output shaft 9a of the first gear case 120 and the universal joint 122 at one end is connected to the output shaft 120b of the first gear case 120. It is rotatably supported by a support frame 125.

Further, the universal joint 124 is connected to the input shaft 126a of the second gear case 126. The output shaft 126b of the second gear case 126 is connected to an output shaft 126b of the second gear case 126.
One end of the transmission case 127 is attached rotatably in the up-down direction, and a second interlocking shaft 128 provided at the other end of the first transmission case 127 is inclined forward and upward.
One end of the transmission case 129 is rotatably mounted in the vertical direction, and the other end of the second transmission case 129 is rotatably mounted on one end of the drive shaft 130 of the drive roller 116. .

The interlocking medium 131 in the first transmission case 127 and the interlocking medium 13 in the second transmission case 129 are output from the output shaft 126b of the second gear case 126.
2, the drive shaft 130 of the drive roller 116 is driven to rotate, and by the rotation of the drive roller 116, the endless revolving belt 118 of the placing conveyor 26 is driven to rotate backward. I have.

One end of a third transmission case 133 in the front-rear direction inclined forward and downward is attached to both ends of the drive shaft 130 of the drive roller 116 so as to be vertically rotatable. The input shaft 136 of the third gear case 135 is rotatably provided at the other end of the third transmission case 133 at both ends of the drive shaft 130 via the interlocking medium 134 at the opposite ends of the drive shaft 130, respectively. The drive shaft 50 of the left and right drive pulleys 51 is connected to the output shaft 137 of the gear case 135.

The driving shaft 130 of the driving roller 116
The output from both ends of the third gear case 135 via the interlocking medium 134 in the third transmission case 133 on both sides.
The input shafts 136 are respectively rotated, and the drive shafts 50 of the left and right drive pulleys 51 are respectively rotated by the output shafts 137 of the third gear case 135 on both sides thereof.
The left and right drive pulleys 51 are rotationally driven inward in opposite directions by the left and right drive shafts 50, and the rotation of the left and right drive pulleys 51 causes the pair of endless revolving belt bodies 44 of the sandwiching conveyor 25 to rotate. They are turned inward in opposite directions.

Next, reference numeral 138 denotes a cutting device which is provided in front of the traveling vehicle body 1 and has a cutter 139 for cutting the root portion B of the head vegetable A planted in a field in a planted state. The cutting device 138 includes a connecting frame 140 integrally connected to the vicinity of the front end of the frame member 32 on both the left and right sides of the conveyor frame 27 of the sandwiching conveyor 25, and a front-rear direction horizontally fixed to the left and right of the connecting frame 140. Left and right fixed frames 141 and left and right fixed frames 141
The left and right movable frames 142 are disposed below and in parallel with the left and right fixed frames 141, and the left and right fixed frames 141 are attached to the left and right fixed frames 141.
And a pair of front and rear left and right parallel links 143 for supporting the upper and lower sides in parallel.

Further, the cutting device 138 is further provided at the front end of the left and right movable frames 142, respectively, and is rotated in contact with the cutter 139 and the ridge shoulder on which the ball-shaped vegetables A are planted. While regulating
A guide wheel 144 for adjusting the posture of the head vegetable A and guiding the head vegetable A to the cutter 139, and a driving means for rotating the cutter 139 and the guide wheel 144
And a transmission case 176 having a pair of front and rear left and right parallel links 143 for urging the movable frame 142 having the cutter 139 and the guide wheel 144 at a predetermined height position. And a biasing means 146.

The connecting frame 140 includes a vertical left and right rear supporting plate 147 integrally connected to the vicinity of the front ends of the left and right frame members 32, and a left and right rear supporting plate 14.
7 and left and right horizontal plate portions 149 which are integrally and substantially protruded forward from the upper end portion, and left and right front support plate portions 148 which are integrally fixed to the left and right horizontal plate portions 149, respectively. And a horizontal continuous plate portion 150 integrally formed between the front ends of the left and right horizontal plate portions 149.

Next, the left and right fixed frames 141 are
The front and rear ends thereof are horizontally and integrally fixed to and supported by lower ends of the left and right rear support plate portions 147 and 148, respectively. Bearings 151 and 152 are provided at the ends, respectively.

Next, the left and right movable frames 142
Escape recesses 153 are formed at substantially middle portions in the front-rear direction, open at the lower surface, project upward in an arc shape to avoid stumps, and bearing members 154, 155 provided at the front and rear ends thereof. And a horizontal support plate 156 which is integrally formed at the front end thereof at a predetermined inclination angle toward the inner front side and which is integrally protruded. And an up-down adjustment support plate 158 having an insertion hole 157 which is integrally protruded toward the front and has an opening in the front-back direction. Connecting rod
159 and a connecting rod 160 connected between the rear ends thereof are integrally connected in parallel.

Next, the pair of front and rear parallel links on the left and right sides
143 is a front first link 161 formed in a substantially L-shape in side view, and a rear second link 162 formed in a substantially L-shape in side view having the same shape as the first link 161. And the first link 161 and the second link
Reference numeral 162 denotes a narrow-width plate-shaped front-back support plate 163 which is projected rearward and downward at a predetermined inclination angle, and integrally protrudes forward and upward from the front end of the support plate 163. And an interlocking plate 164 in the vertical direction in the form of a narrow plate.

The support plates 163 of the left and right first links 161 are provided at their front ends with the left and right fixed frames 14.
1 has a left-right front support shaft 165 rotatably supported by a front-end bearing member 151, and has a front-end bearing member 15 of the left-right movable frame 142 at its rear end.
4 has a left-right support shaft 166 that is rotatably supported.

The support plates 163 of the left and right second links 162 are provided at their front ends with the left and right fixed frames 141.
The left and right movable frames 142 each have a front support shaft 167 in the left and right direction rotatably supported by a rear end bearing member 152, and a rear end bearing member 155 at the rear end of the left and right movable frames 142.
The left and right support shafts 168 rotatably supported on the shafts are respectively provided.

Further, a connecting portion 171 provided at one end of a longitudinal adjusting member 170 as a connecting member at the upper end of the interlocking plate portion 164 of the first link 161 on the left and right by a connecting pin 169 in the left and right direction. Are connected to the other end of the left and right space adjusters 170, respectively,
172 are rotatably mounted on the upper ends of the interlocking plate portions 164 of the left and right second links 162 by support shafts 173 in the left-right direction. The interval adjuster 170 is provided with a first link 161.
The second link 162 is connected to the second link 162 by adjusting the distance therebetween, and is formed by a turnbuckle 174 that is adjustable in length. Also, the support plate 16 of the left and right second links 162
3 are integrally connected by a connecting rod 175 connected between the rear ends thereof.

The pair of front and rear parallel links on the left and right.
143 and the front, rear, left and right support shafts 165, 166, 167, 168
The left and right movable frames 142 are attached to the left and right fixed frames 141 so as to be vertically movable in parallel with each other.

Next, the left and right transmission cases 176 provided with driving means 145 for driving and rotating the cutter 139 and the guide wheel 144 respectively include a front case portion 181 and a rear case portion integrated with the front case portion 181. 182 are formed in a substantially rectangular shape in plan view. The driving means 145 are provided at substantially the middle of the left and right transmission cases 176 in the front-rear direction.

The left and right driving means 145 are provided with a hydraulic motor 177.
The left and right output shafts 178 of the left and right hydraulic motors 177 are rotatably projected into the left and right transmission cases 176, respectively. Also, the output shaft of the hydraulic motor 177 is located in the left and right transmission cases 176.
Sprockets 179, 180 are fixed above and below 178, respectively.

Further, the left and right rear case portions 182 are integrally formed at the front ends thereof so as to protrude upward, respectively, and have a support frame 183 having an inverted L-shape in side view to which the hydraulic motor 177 is fixed.
And a mounting plate portion 185 having a bearing body 184 such as a ball bearing, which is integrally formed at the rear end thereof and rotatably fitted with the rear case 182 in the horizontal direction. Sprocket 186 freely mounted on the shaft
And a vertical rotation shaft 187 fixed to the rear case portion.
A cutter 139 which is located below the lower end of the rotary shaft 187 and which is fixed to the lower end of the rotary shaft 187; and a substantially conical grounding member 188 which is fixed to the lower end of the cutter 139 and grounds when the guide wheel 144 sinks. And the bearing body 18
4 and a connecting plate 189 horizontally protruding toward one side, and a connecting plate positioned in front of the connecting plate 189 and horizontally protruding toward the one side to the mounting plate portion 185, respectively. And a projection 190.

The connecting plates 189 of the left and right rear case portions 182 are fixed to and supported by the support plates 156 at the front ends of the left and right movable frames 142 by a plurality of bolts 191 respectively. I have. Then, the left and right support plates
156 and the connecting plate 189 fixed thereto,
4, the left and right transmission cases 176 are supported in a cantilevered manner in a substantially horizontal shape, respectively.
Numeral 6 is adapted to be rotated left and right around the bearing body 184 supported by the connecting plate 189.

An endless chain 192 is wrapped around the sprocket 180 below the output shaft 178 of the hydraulic motor 177 and the sprocket 186 of the rotary shaft 187. The left and right cutters 139 are rotated inward and rearward in opposite directions via an endless chain 192 by an output from an output shaft 178 of the left and right hydraulic motors 177.

The rotating shafts 18 of the left and right cutters 139
7 are the left and right cutters so as to avoid the stump of the root B of the head vegetable A cut by the left and right cutters 139.
The output shaft 178 of the left and right hydraulic motors 177 is slightly inclined so as to be parallel to the rotation shaft 187 having the left and right cutters 139 in order to rotate the 139 slightly inclining forward and downward. It is provided.

Each of the left and right cutters 139 is formed in a disk shape and has a cutting blade 139a on the outer peripheral edge thereof. Root B of head vegetable A while sliding with
Is cut from both sides. The left and right cutters 139 are connected to the endless revolving belt 11 of the placing conveyor 26.
8 and below the carry-in port 42 of the sandwiching conveyor 25.

Next, the left and right front case portions 181 are
A vertical rotating shaft 19 having a sprocket 194 rotatably supported by a bearing body 193 fixed to the front end.
5, the guide wheel 144 fixed to the lower end of the rotating shaft 195, and guide wheel adjusting means for adjusting the ground height of the guide wheel 144 by moving the rotating shaft 195 up and down.
196.

The rotating shaft 195 has the sprocket 194 at the upper part and the lower part of the outer cylindrical shaft 197 which is rotatably fitted with the lower part of the rotating body 195 being prevented from being pulled down by the bearing body 193. And a keyway in this outer cylinder shaft 197.
198 and a key 19 fitted in this key groove 198 so as to be movable up and down.
The vertical axis as a rotary shaft having a screw shaft 201 which is vertically movable and non-rotatably fitted around the shaft at 9 and protrudes upward at the upper end and has a male screw 200 formed in the outer peripheral axis direction. And an interlocking shaft 202.

The outer cylindrical shaft 197 is formed at a substantially middle portion in the vertical direction and is engaged with the upper end portion of the bearing body 193, and is rotatably screwed to the lower end portion thereof. And a nut body 204 abutting on a lower end of the bearing body 193 .The engagement stepped part 203 and the nut body 204 are rotatably fitted to the bearing body 193 in a state where they are prevented from being pulled out. ing.

A cylindrical vertical support 206 fixed to the center of the guide wheel 144 is fitted to a connecting shaft 205 formed at the lower end of the interlocking shaft 202. A shaft support 206 is fixed to the portion 205 with a key 207 and a fixing screw 208 so as not to be pulled out. The guide wheel 144 is fixed to the connecting shaft portion 205.

The sprocket 194 of the outer cylinder shaft 197
An endless chain 209 is wound around the sprocket 179 above the output shaft 178 of the hydraulic motor 177 so as to freely rotate. The left and right guide wheels 144 are rotated inward and backward in opposite directions via an endless chain 209 by an output from an output shaft 178 of the left and right hydraulic motors 177.

Further, the rotating shaft 195 having the left and right guide wheels 144 moves the left and right cutters 139 forward and downward so as to avoid the stump of the root portion B of the head vegetable A cut by the left and right cutters 139. The output shafts of the left and right hydraulic motors 177 are used for rotation while slightly inclined toward
178 is slightly inclined so as to be parallel to the rotating shaft 187 having the right and left cutters 139, so that the endless chain 209 is vertically
The endless chain 209 is bent downward by its own weight during rotation while being rotated between the horizontal sprocket 194 and the slightly inclined sprocket 179 at the upper part of the output shaft 178. Therefore, the output shaft 178 is rotated without coming off the sprocket 179 on the upper portion.

Next, the left and right guide wheels 144 are
The left and right cutters 139 and the heads on which the headed vegetables A are planted are rotated while being in contact with the ridges to restrict the cutting positions of the right and left cutters 139, and the posture of the headed vegetables A is adjusted from both sides to plant the headed vegetables A. The left and right cutters 13 while planting
The guides are located between the discs and are made of synthetic resin or metal to form a disk.

The left and right guide wheels 144 have a substantially horizontal mounting surface on which the lower surface of the head vegetable A is mounted.
In addition, the lower surface has a conical contact surface 211 which is inclined downward toward the center and slidably rotates along the upper surface of the ridge. Guide holes 212 are formed between the inner peripheral portions of the left and right guide wheels 144 at predetermined intervals for guiding the root portion B of the head vegetable A.

Then, by the output from the left and right hydraulic motors 177, the left and right guide wheels 144 are driven to rotate inward in opposite directions at the same speed via the endless chain 209 and the rotating shaft 195. It has become.

Next, the guide wheel adjusting means 196
The interlocking shaft is provided by rotatably supporting a reduced-diameter sliding portion 213 integrally formed on the left and right front case portions 181 and formed on an outer peripheral portion of an upper end of the outer cylindrical shaft 197 via a sleeve (not shown). An annular flange 214 which projects the screw shaft 201 of the upper part 202 upward and an annular flange 215 rotatably abutting on an opening edge of the flange 214 via a sleeve (not shown) at its lower end. A vertical hollow cylindrical adjusting body 217 having an internal thread on which an external thread 200 of the shaft 201 is screwed, and a cap-shaped operating body 218 fixed to the upper end of the adjusting body 217; ing.

Further, the guide wheel adjusting means 196 is
Further, the adjusting body 217 is located below the operating body 218.
And a plurality of bolts on the flange 214 at the lower end.
A vertical cover body 222 having an annular fixing portion 220 fixed at 219 and having an insertion hole 221 through which the adjustment body 217 is inserted at the upper end, and an interposition between the cover body 222 and the adjustment body 217. The upper end is engaged with the opening edge of the insertion hole 221 and the lower end is engaged with the flange 215 of the adjusting body 217 to constantly bias the adjusting body 217 toward the rotating shaft 195. And

Then, the adjusting body is operated by the left and right operating bodies 218.
By rotating the respective 217, the screw shaft 20 in which the male screw 200 is screwed to the female screw 216 of the right and left adjusting bodies 217 is formed.
1 are respectively moved up and down, and the left and right interlocking shafts 202 integrated with the screw shaft 201 are connected to the keyways 198 and the keyways 19.
The guide wheels 144 at the lower ends of the left and right interlocking shafts 202 are adjusted vertically by using the keys 199 fitted to 8 as guides. The left and right cutters 139 are moved up and down relatively, and the position of the left and right cutters 139 above the ground, that is, the cutting positions of the left and right cutters 139 are set and regulated.

Next, the connecting projection 190 of the left and right transmission cases 176 having the driving means 145 for driving the cutter 139 and the guide wheel 144 to rotate, and the left and right movable frames
The right and left transmission cases 176 are rotated left and right around the respective bearings 184 between the adjustment support plate 158 at the front end of the front end 142 and the guide opening 21 between the left and right guide wheels 144.
Guide port adjusting means 224 for adjusting the interval 2 are provided.

The left and right guide port adjusting means 224 has a connecting portion 225 at one end thereof rotatably mounted on a connecting projection 190 of the transmission case 176 by a connecting pin 226 and the other end thereof at the movable frame. The front and rear adjustment screw 227 is inserted into the insertion hole 157 of the adjustment support plate 158 so as to be able to move forward and backward, and the other end of the adjustment screw 227 protruding rearward from the adjustment support plate 158 is moved forward and backward by rotation. An adjusting nut 228 and a lock nut 229 screwed so as to be adjustable, and the adjusting support plate
158 and the connecting portion 225 at one end of the adjusting screw 227, the adjusting screw 227 is wound around the adjusting screw 227.
Coil spring 230 which always urges forward
, And is configured.

Then, the left and right adjusting screw 227 is moved forward and backward by the adjusting nut 228 and the lock nut 229 against the coil spring 230, so that the right and left adjusting screw 227 is connected to the connecting protrusion 190 via the connecting projection 190. The left and right transmission cases 176 are pivoted in the left and right directions around the respective bearing members 184 so that the distance between the guide openings 212 between the left and right guide wheels 144 is determined according to the diameter of the root B of the head vegetable A. The interval is adjusted to a predetermined size for guiding the root B.

Next, the pair of front and rear parallel links on the left and right sides
An urging means 146 for urging the left and right movable frames 142 having the cutter 139 and the guide wheel 144 at a predetermined height position via a 143 is provided by a cylinder device 231 filled with compressed gas. Is formed.

The cylinder device 231 has a mounting portion at one end.
A hollow cylindrical cylinder body 233 having an inner chamber 232 and an A chamber 234 provided in the cylinder body 233 so as to be slidable in an axial direction in a liquid-tight manner and filled with a compressed gas a.
And a B chamber 235 filled with compressed gas a.
A piston 237 having an orifice 236 communicating between the chamber 234 and the B chamber 235; and a mounting part provided at the other end of the piston 237 connected to the piston 237 so as to be able to advance and retreat with respect to the cylinder body 233. A piston rod 239 having a 238, a rod guide 240 which is fitted to the other end of the cylinder body 233 in a liquid-tight manner and guides the piston rod 239 to advance and retreat, and a sealing material 241 inside the rod guide 240; An oil b which fills the B chamber 235 and controls the speed of the piston rod 239 when the piston rod 239 advances and retracts, and an elastic bellows-like cover body 242 fixed to the other end of the cylinder body 233 and covering the piston rod 239
, And is configured.

When an external force in the backward direction is applied to the piston rod 239, the piston 237
It is assumed that the pressure of the compressed gas a and the oil b in the B chamber 235 at this time are balanced and stationary at an arbitrary position in the chamber 235.
The pressure is balanced with the same pressure. Further, the piston rod 239 is
When the piston rod 239 moves forward and backward, the compressed gas a in the chamber A 234 and the chamber B 235 alternately moves through the orifice 236 in the process of moving the piston rod 239.
The speed at which the piston rod 239 advances and retreats is controlled by 236.

Next, a mounting portion 232 at one end of the cylinder main body 233 is attached to a mounting plate 243 integrally projecting from the left and right rear supporting plate portions 147 of the connecting frame 140, and a left-right supporting shaft.
Each of the pistons 244 is rotatably mounted on a shaft, and a mounting portion 238 of the other end of the piston rod 239 provided on the cylinder body 233 is provided on an interlocking plate portion 164 of the first link 161 on the left and right. Each of the pressure adjusting means 245 for adjusting the pressure of the rod 239 is rotatably mounted on a shaft.

The pressure adjusting means 245 is connected to the left and right first
A bracket 246 integrally protruding forward from the interlocking plate portion 164 of the link 161;
A left and right mounting support shaft 247 protruding horizontally and integrally, a rotating body 248 rotatably fitted to the left and right mounting support shafts 247, and Mounting pieces 24 that protrude upward and are spaced apart from each other
An up-down operation handle 251 rotatably supported in the left-right direction on a front-rear support shaft 250 provided between 9;
have.

The pressure adjusting means 245 further comprises:
The piston rod 239 has a mounting portion 238 at the other end of the piston rod 239 which is integrally protruded rearward from the rear mounting piece 249.
And a connecting piece 252 rotatably supported on the upper and lower ends of the left and right brackets 246.
And a fixing plate 254 in which a plurality of engaging recesses 253 that engage and disengage with each other are arranged side by side in the front-rear direction.

When the operating handle 251 is rotated in the front-rear direction, the connecting piece 25 is
2 through the piston rod 239 and the cylinder body 233
In the process of moving the piston rod 239 forward and backward, the compressed gas a in the chamber A 234 and the chamber B 235
The pressure of the compressed gas a and the pressure of the oil b in the B chamber 235 are adjusted to the same pressure, and the balance is maintained. Then, the operation handle 251 is engaged with one engagement recess 253 at the selected position of the fixed plate 254.

Therefore, the left and right pressure adjusting means 245
The right and left urging means 146 (the left and right cylinder devices 231), the pressure of which has been adjusted, and the left and right fixed frames 141.
The left and right cutters pivotally supported through parallel links 143
139 and the left and right movable frames 142 having the left and right guide wheels 144 are maintained in a weight balance, and the left and right movable frames 142 are always held at a predetermined height position by the left and right cylinder devices 231. The cutter 139 and the guide wheel 144 in front and behind the left and right transmission cases 176 provided on the movable frame 142 are respectively held at predetermined height positions.

Next, the board 11 is mounted on the conveyor.
The space around the carry-out end 26 and the space behind the driver's seat 14 is configured as a finishing work section 255. The finishing work part 255 is located at the side end of the unloading end of the placing conveyor 26 and picks up each headed vegetable A conveyed to the unloading end of the placing conveyor 26 and places it sequentially in an aligned manner. First
Work table 256, a second work table 257 provided at the rear end of the boarding board 11 adjacent to the first work table 256, and the operation table adjacent to the second work table 257. It has a third worktable 258 located behind the seat 14 and protruding laterally, and an empty box mounting space 259.

Next, the operation of the above embodiment will be described.

The traveling vehicle 1 is carried into the field, and the left and right guide wheels 144 of the cutting device 138 in front of the transfer device 24 provided on the traveling vehicle 1 are placed on the shoulder of the ridge where the vegetable A is planted. Thus, the cutting device 138 is arranged on the ridge in a state where the cutting positions of the left and right cutters 139 are regulated by the left and right guide wheels 144. At this time, the endless track belts 3 on both sides of the traveling body 4 of the traveling vehicle body 1 are on the ridge grooves on both sides of the ridge or one endless track belt 3 is on the ridge where the head vegetables A are harvested and the other endless track belt 3 is It is arranged on a ridge for harvesting head vegetables A.

Further, by adjusting the left and right pressure adjusting means 245 according to the condition of the head vegetable V planted on the ridge, the left and right urging means 146 (the left and right cylinder devices 231) are adjusted in pressure. The left and right movable frames 142 are vertically moved and adjusted by the left and right cylinder devices 231, and the guide wheels 14 of the left and right transmission cases 176 provided on the left and right movable frames 142.
4 is adjusted to a state in which it comes into contact with the ridge shoulder at a predetermined contact pressure, and the cutter 139 is attached to the root portion B of the head vegetable A.
Is adjusted to a predetermined cutting position for cutting.

Then, the right and left urging means 146 (the left and right cylinder devices 231) whose pressure has been adjusted by the left and right pressure adjusting means 245 and the parallel link 143 to the left and right fixed frames 141.
The weight balance is maintained with the left and right movable frames 142 having the left and right transmission cases 176 provided with the cutter 139, the guide wheel 144 and the driving means 145, which are rotatably supported by the left and right cylinder devices 231. Frame 142
The guide wheels 144 of the left and right transmission cases 176 provided on the ridge are grounded on the ridge shoulder with a predetermined ground pressure, and the cutting positions of the left and right cutters 139 are regulated by the left and right guide wheels 144, respectively.

Therefore, the right and left urging means 146 (the left and right cylinder devices 231) can easily adjust the pressure by operating the operation handle 251 of the left and right pressure adjusting means 245. The guide wheels 144 of the left and right transmission cases 176 provided on the left and right movable frames 142 in the cylinder device 231 are grounded without excessively sinking or rising too much with respect to the ridges where the vegetable A is planted. The cutting positions of the left and right cutters 139 are reliably restricted by the guide wheels 144. That is, the ground contact surfaces 211 of the left and right guide wheels 144 are grounded on the shoulders of both ridges at a predetermined contact pressure, and the left and right cutters 139 cut the root B of the head vegetable A with the left and right guide wheels 144. The position is reliably restricted to the cutting position of an appropriate height.

The root B of the headed vegetable A planted on the ridge
The nuts 229 of the guide port adjusting means 224 are respectively relaxed and the adjusting nuts 228 are respectively rotated to operate in accordance with the condition of the head vegetables V, such as the diameter, thickness, etc. The left and right adjusting screw bars 227 are moved forward and backward, respectively, and the left and right transmission cases 176 are rotated by the right and left adjusting screw bars 227 around the respective bearing bodies 184 via the connecting projections 190. Is done.

The distance of the guide opening 212 between the left and right guide wheels 144 is adjusted according to the thickness of the root B of the head vegetable A while adjusting the posture of the head vegetable A while guiding the root B. A is adjusted to an appropriate interval for guiding the A to the right and left cutters 139. In this state, the adjustment nut 228 and the lock nut 229 are respectively tightened, so that the interval between the guide holes 212 between the left and right guide wheels 144 is opened at an appropriate interval. Is done.

Therefore, by rotating the adjusting nut 228 and the lock nut 229, the distance between the guide holes 212 between the left and right guide wheels 144 is adjusted according to the thickness of the root portion B of the harvested head vegetable A and the head vegetable. By adjusting the posture of A, the head vegetables A can be easily adjusted to an appropriate interval for guiding the head vegetables A to the right and left cutters 139.

Next, the front entrance guide 39 and the tension member 40 are moved by adjusting the carry-in entrance adjusting means 43 as necessary according to the diameter of the headed vegetable A to be harvested which has been planted and grown in the field. As a result, a pair of opposed endless revolving bodies that move between the front guide body 39 and the tension member 40 are formed.
The entrance 42 of the head vegetable A expanded forward in the inner revolving part 33 of 35 is adjusted to expand and contract, and the entrance 42 is formed in a predetermined size so that the head vegetable A to be harvested can be carried in without difficulty. Is done.

That is, when adjusting the carry-in port 42, the left and right adjusting plates 62 are turned around the lower portions 71a of the support shafts 71 with respect to the shaft support portions 67 (shaft insertion holes 69) of the left and right fixed substrates 61, respectively. In addition to the dynamic adjustment, the support arms 63 provided on the left and right adjustment plates 62 are rotated in the traveling direction of the traveling vehicle body 1 by rotation adjustment of the adjustment plates 62, that is, in the left and right directions with respect to the endless revolving body 35, respectively. In a state where the front guides 39 at the front ends of the left and right support arms 63 are arranged at predetermined positions, one of the left and right adjustment plates 62 having the left and right support arms 63 is selected.
By fitting the fixing pins 73 into the fixing portions 68 (pin insertion holes 70) of the left and right fixed substrates 61 from the two adjusting holes 72, the left and right adjusting plates 62 are fixed to the fixed substrate 61 so that they cannot rotate.

Further, since the left and right adjustment plates 62 having the left and right support arms 63 are fixed respectively, the tension members 40 at the front ends of the left and right tension arms 65 provided on the left and right support arms 63 are supported. The left and right tension members 40 are disposed at predetermined positions of the inner turning portions 33 of the pair of endless turning members 35, and the left and right tension members 40 are moved in the pair of endless turning members. It is always urged and engaged at a predetermined position of the inner revolving portion 33 of 35.

Further, the lock nut 81 of the engagement projection 74 (engagement projection 77) on one side of the left and right adjustment plates 62 is loosely rotated and the adjustment bolt 80 having this lock nut 81 is rotated. By adjusting the forward / backward movement of the engaging projection 77, the rear end of the support arm 63 is pushed against the coil spring 64 by the tip of the adjustment bolt 80, and the rotation angle of the support arm 63 is adjusted. Is adjusted, that is, by adjusting the distance between the tip end of the adjustment bolt 80 interposing the rear end of the support arm 63 and the engagement pin 78 on the other side, the rotation angle of the support arm 63 is adjusted. Is adjusted, and the lock nut 81 is tightened to the adjustment bolt 80 at the set position to fix the position of the adjustment bolt 80.

Accordingly, the carry-in port 42 is easily formed at the inner circling portions 33 of the pair of endless circulating members 35 which move between the front guide member 39 provided on the left and right support arms 63 and the tension member 40 and face each other. Is adjusted.

Further, if necessary, the adjusting members 217 are rotated by the left and right operating members 218 of the left and right guide wheel adjusting means 196, respectively.
A screw shaft 201 in which a male screw 200 is screwed into a female screw 216 is moved up and down, and left and right interlocking shafts 202 integrated with the screw shaft 201 guide a key groove 198 and a key 199 fitted in the key groove 198. Are respectively moved up and down with respect to the outer cylinder shaft 197.

The guide wheels 144 at the lower ends of the left and right interlocking shafts 202 are adjusted vertically, and the left and right cutter wheels 139 are relatively vertically moved by the left and right guide wheels 144. At 144, the left and right cutters 139 are adjusted to the height position of the left and right cutters 139, that is, a predetermined cutting position for cutting the root B of the head vegetable A. Therefore, the right and left guide wheels 144 and the left and right cutters 139 can be relatively easily moved up and down by rotating the adjusting body 217 with the operating body 218.

Further, if necessary, the left and right adjusting screw 227 is adjusted forward and backward by the adjusting nut 228 and the lock nut 229 of the left and right guide opening adjusting means 224 against the coil spring 230 to adjust the left and right. The left and right transmission cases 176 are rotated left and right around the respective bearing bodies 184 by the screw rods 227 via the connecting projections 190. The distance between the guide holes 212 between the left and right guide wheels 144 is a predetermined size for guiding the root B according to the diameter of the root B of the head vegetable A. Is adjusted to an interval of a predetermined size to be guided. Therefore, the interval between the guide openings 212 between the left and right guide wheels 144 can be easily adjusted to a predetermined size.

Next, when the output from the drive mechanism 10 is output to the traveling body 4, the sandwiching conveyor 25, and the placing conveyor 26, the endless track zone 3 of the traveling body 4 is driven and circulated, and the traveling vehicle body 1 advances. In addition, a pair of endless revolving bodies 35 of the sandwiching conveyor 25 are revolved inward and rearward in opposite directions,
That is, the opposing inner circling section 33 is traversed backward at the same speed, and the endless circling zone of the loading conveyor 26
118 The upper part 119 is a pair of endless bodies
It is circulated backward at the same speed as the inner circling section 33 of 35.

Further, the left and right driving means 145 of the cutting device 138
When the front and rear rotating shafts 187 and 195 of the left and right transmission cases 176 are rotated by the output from the output shaft 178 of the (hydraulic motor 177) via the endless chains 192 and 209, respectively, The left and right cutters 139 are rotated at the same speed toward the inside rearward in the opposite directions, respectively, and the left and right guide wheels 144 are respectively directed toward the inside rearward in the opposite directions by the left and right rotation shafts 195. At the same speed.

Then, the left and right guide wheels 144 are respectively advanced while rotating along the ridges and shoulders with the ground contact surfaces 211 contacting the ridges and the shoulders.
Each head vegetable A in the planted state planted on the ridge on the mounting surface part 210 of the 144 is positioned while the root portion B of each head vegetable A passes through the guide opening 212 between the left and right guide wheels 144. While being arranged and in the planted state, it is sequentially guided between the left and right cutters 139, and each of these head vegetables A is in the planted state while the pair of endless rotating bodies 35 of the pair of endless conveyors 35 of the sandwiching conveyor 25 face each other. They are sequentially carried in and carried into a carry-in port 42 formed at the front end of the row section 33.

At this time, since the left and right guide wheels 144 have the conical grounding surface portions 211 that are in contact with the ridges on both shoulders and rotate in sliding contact, the left and right guide wheels 144 smoothly follow the ridges on both shoulders. The left and right guide wheels 144 are formed of a synthetic resin, so that the left and right guide wheels 144 are further smoothly rotated along the shoulders of the ridges. As the rotation proceeds, the mud does not easily adhere to the left and right guide wheels 144, the number of steps for removing the mud from the left and right guide wheels 144 is small, the rust does not occur, and the weight of the guide wheel 144 can be reduced.

When the lower part of each headed vegetable A is sandwiched between the inner rotating parts 33 of the pair of endless rotating bodies 35 opposed to each other, the inner rotating parts 33 of the pair of endless rotating bodies 35 are opposed to each other. The upper and lower holding surfaces 47a and 47b of the elastic holding body 47 are pressed by the lower part of the head vegetable A, respectively, and are elastically deformed along the peripheral surface of the lower part of the head vegetable A. The lower part of each head vegetable A is pinched,
The lower clamping surface portion 47b is elastically deformed to a greater extent than the upper clamping surface portion 47a, and the upper clamping surface portion 47a is formed by the lower clamping surface portion 47b.
The lower part of each head vegetable A in the portion where the head is firmly headed below the position where the head is held is strongly held.

Therefore, the upper holding surface portion 47a of the elastic holding body 47 which elastically deforms when holding the lower portion of each head vegetable A,
The lower holding surface portion 47b, which has a larger protrusion than the upper holding surface portion 47a, sufficiently holds the lower part of each head vegetable that firmly forms a head.

Further, when the lower portions of the head vegetables A are sandwiched between the inner rotating portions 33 of the pair of endless rotating bodies 35 opposed to each other, the front guides are provided to be inclined inward in the direction approaching each other. A pair of endless revolving bodies are attached to the body 39 and the tension member 40.
The lower portion of the head vegetable A is engaged with the inner revolving portions 33 of the pair of endless revolving bodies 35 that move between the front guide body 39 and the tension member 40 by engaging the front folded portions 38 of the 35. Since the carry-in port 42 for carrying in is formed, the inner circling portions 33 of the pair of endless circling bodies 35 forming the carry-in port 42 are inclined inward in the direction approaching each other, According to this inclination, the elastic holding bodies 47 of the inner rotating portions 33 facing each other are at lower positions, and the head vegetables A carried into the carry-in port 42 by the elastic holding members 47 of the opposed inner rotating portions 33 are hardened. The lowest possible position of the lower part of the head is sufficiently clamped.

[0130] Further, since a carry-in port 42 is formed above the left and right cutters 139 so as to be spaced apart and to carry in the lower part of the head vegetable A, the lower part of the head vegetable A is carried into the carry-in port 42 and opposed. The root B of each head vegetable A planted by the cutting blades 139a of the left and right cutters 139 at the same time as being firmly held by the elastic holding body 47 of the inner turning part 33,
That is, the root of each head vegetable A and the root B composed of a plurality of lower ends of the outer leaves are sequentially and reliably cut from a predetermined position.

Each head vegetable A is a pair of endless revolving bodies 35.
When the diameter of the head vegetable A is slightly larger than the size of the carry-in port 42 when it is carried into and pinched by the carry-in port 42 of the
The left and right support arms 63 each having a guide wheel 144 at the front end where the 42 is formed are adjusted by coil springs 64 respectively.
The right and left guide wheels 144 are pushed by the diameter of the head vegetable A carried into the carry-in port 42 by being urged to always engage with the tip of the adjustment bolt 80 on one side of 62. Left and right support arms 63 having this guide wheel 144
Are coil springs around the support shaft 71 of the adjustment plate 62, respectively.
The inner circulating portion 33 of the opposed carry-in port 42 that moves between the left and right guide wheels 144 and the tension member 40 while rotating slightly in the left and right direction with respect to the traveling direction of the traveling vehicle body 1 against the traveling direction of the traveling vehicle body 1. The head vegetables A are securely clamped from both sides.

Accordingly, each head vegetable A is sandwiched by the inside circling portion 33 of the carry-in port 42 in a planted state, and at the same time, the root B of each head vegetable A is cut by the cutting blades 139a of the left and right cutters 139.
The cutting is surely performed sequentially from a predetermined position.

At this time, the guide wheels 144 of the left and right transmission cases 176 provided on the left and right movable frames 142 in the left and right cylinder devices 231 sink or lift too much with respect to the ridges where the head vegetables A are planted. Without a predetermined ground pressure, that is, the left and right guide wheels 144
Are grounded on both shoulders of the ridge with a predetermined contact pressure. Therefore, when the left and right guide wheels 144 move up and down due to surface changes such as unevenness on the ridge, the left and right cylinder devices 231 are moved. Pressure adjusted pressure & left and right parallel link
By the rotation of 143, the left and right movable frames 142 move up and down in parallel with the respective fixed frames 141, and the guide wheels 144 of the left and right transmission cases 176 of the left and right movable frames 142 follow the surface changes on the ridges. Progress.

Since the right and left guide wheels 144 regulate the right and left cutters 139 at appropriate cutting positions for cutting the root portion B of the head vegetable A, the right and left cutters 139 use the cutting blades 139a of the left and right cutters 139. The root portion B of each head vegetable A is sequentially and reliably cut from a predetermined position.

The left and right parallel links 143 are formed integrally with the support plate 163 which supports the movable frame 142 on the left and right fixed frames 141 so as to be movable up and down, respectively. By having the interlocking plate portion 164 protruding upward and the interval adjusting body 170 rotatably connecting the left and right opposing front and rear interlocking plate portions 164, respectively,
The supporting plate 163 supporting the left and right movable frames 142 is reinforced by the left and right interlocking plate portions 164 facing each other and the spacing adjuster 170 connecting the interlocking plate portions 164 opposing the front and rear portions, respectively. Even when the guide wheel 144 at the front of the case 176 receives a strong earth pressure, the left and right movable frames 142 and the front and rear support plate portions 163 are reliably prevented from being twisted.

As a result, the left and right guide wheels 144 contact the ground with a predetermined contact pressure on both shoulders of the ridge and rotate and advance. The left and right guide wheels 144 cause the left and right cutters 139 to cut the root B of each head vegetable A. The rotation is performed while being restricted to a predetermined cutting position for cutting.

Therefore, the left and right guide wheels 144 and the left and right cutters 139 of the left and right movable frames 142 do not sink or rise too much with respect to the ridge, respectively. The left and right guide wheels 144 are rotated by the left and right guide wheels 144 at a predetermined cutting position where the left and right cutters 139 cut the root B of each head vegetable A. Then, the roots B of each head vegetable A are reliably and sequentially cut from a predetermined cutting position by the left and right cutters 139.

Further, since the transport device 24 having the cutting device 138 at the front end is supported by the front and rear left and right links 20 and the rear link 22 and the cylinder device 23 on the traveling body 1, the harvest traveling of the traveling body 1 is performed. Sometimes, the transfer device 24 is supported in a fixed state without vibration, and the left and right guide wheels 144 and the left and right cutters 139 and the left and right cutters 139 of the cutting device 138 at the front end of the transfer device 24 are excessively lowered or lifted by the transfer device 24. Progressed without.

[0139] Next, each head vegetable A whose roots B were cut sequentially in the planted state by the left and right cutters 139 and which were held in the planted state by the inner revolving parts 33 of the carry-in port 42 facing each other. The lower end, that is, the cut end, in which the root portion B of each head vegetable A is cut while the root portion B of each head vegetable A is cut while being held in the planted state at the opposing inner turning portions 33 of the pair of endless turning bodies 35 while being conveyed upward. The upper part of the endless revolving belt 118 of the loading conveyor 26
, And are sequentially loaded and placed.

At this time, since the elastic holding member 47 is integrally formed along the outer peripheral surface of the non-stretchable endless circling belt 46, the elastic holding member 47 is formed by the non-stretchable endless circling belt 46. Is rotated without expansion and contraction.
The firmly held lower part of each head vegetable A is firmly held by the elastic holding body 47 and is reliably conveyed.

Each head vegetable A is planted by the opposing inner circling portions 33 of the pair of endless circulating bodies 35 of the sandwiching conveyor 25 and the circulating upper portion 119 of the endless circling belt 118 of the placing conveyor 26. In this state, the sheets are sequentially conveyed toward the finishing work section 255. At this time, each head vegetable A is sandwiched in the planted state by the elastic holding body 47 of the inner rotating part 33 of the pair of endless rotating bodies 35 facing each other, and the cut part of each head vegetable A is placed. By being supported and conveyed at the upper part 119 of the endless revolving belt 118 of the conveyor 26, each head vegetable A is conveyed orderly without dropping, leaning greatly, or damaging the outer leaves.

Each of the head vegetables A is a pair of endless revolving bodies 35.
Conveyed to the unloading end of the opposing inner circling section 33, and
When transported to the horizontal portion 114b of the upper traveling portion 119 of the endless revolving belt 118 of the placing conveyor 26, these head vegetables A are transferred to the horizontal portion 114b of the upper traveling portion 119 and the first portion of the finishing work portion 255. Are sequentially picked up by workers who stand facing the work table 256 of the first work table 256, and
It is placed in order on the top.

At this time, the head vegetables A are sequentially placed on the first work table 256 in an aligned manner, and the head vegetables A are placed on the first work table 256 so as not to be stacked on each other. Therefore, the outer leaves of each head vegetable A are prevented from being damaged.

When a predetermined number of head vegetables A are arranged and placed on the first work table 256, each head vegetable A of the first work table 256 is transferred to the second work table of the finishing work part 255. 257 are sequentially transferred and placed on the screen. And this second
Each head vegetable A on the second workbench 257 is finished on the second workbench 257 for unnecessary shipping by removing unnecessary outer leaves and the like.

Further, the third workbench of the finishing work section 255
A predetermined number of head vegetables A finished for shipping on the second workbench 257 are packed in a cardboard box 260 on a box 258 and sealed. The cardboard box 260 in which a predetermined number of head vegetables A are boxed and sealed is placed in the third workbench 25.
8 Prepared for transportation by being sequentially transported from the top to fields or roadsides.

Next, when the direction is changed from the forward stroke to the backward stroke, the cylinder device 23 is operated to extend the rod of the cylinder device 23, and the left and right rear links 22 of the parallelogram are formed by the rod. Are pushed rearward, and the left and right rear links 22 rotate around the respective support shafts 21, and the left and right front links 20 rotate about the respective support shafts 19, respectively, rearward and upward. Is done.

Then, the conveyor frame 27 of the transfer device 24 connected via the support shafts 30 and 31 by the left and right front links 20 and the left and right rear links 22 is lifted and rotated rearward and upward, that is, The entire transfer device 24 is lifted and rotated rearward and upward. Further, as the whole of the transfer device 24 is lifted and rotated, the cutting device 138 provided at the front end of the transfer device 24 is lifted and rotated upward and backward as a whole like the transfer device 24. Cutting equipment
138 left and right cutters 139 and left and right guide wheels 144
Is lifted to a predetermined reversible height position which is separated from each other on the ridge.

By operating the control device 13 and turning the traveling body 1 with the traveling body 4, the cutting device 138 and the transport device 24 are lifted to a predetermined height position by the traveling body 1. The direction is changed from the outbound journey to the return journey.

When the rod of the cylinder device 23 is contracted by operating the cylinder device 23, the left and right front links 20 and the left and right rear links 22 are moved forward by the rods around the respective support shafts 19, 21. While being rotated downward, the conveyor frame 27 of the transport device 24 connected via the support shafts 30 and 31 by the left and right front links 20 and the left and right rear links 22 is lowered toward the front and lower. The transfer device 24 is turned, that is, the entire transfer device 24 is turned downward and forward.

Then, the transport device 24 is returned to the condition of transporting the head vegetables A, and the left and right cutters 139 and the left and right guide wheels 144 of the cutting device 138 are respectively moved by the transport device 24 to predetermined positions on the ridge. Return to working position. Then, in the return stroke, each head vegetable A on the ridge is sequentially planted in the root portion B as in the case of the forward stroke.
Are cut and transported, finished in a finishing work section 255 for shipping, and sealed in a box.

As described above, by repeatedly repeating the forward and backward strokes of the traveling body 1, the root portion B is cut while the headed vegetables A in the planted state are successively planted in the ridges of each row in the field. Transported, finished in the finishing work section 255 for shipping, and sequentially boxed and sealed.
260 is carried out to the field or on the side of a road to prepare for transport.

In the above-described embodiment, the case where the harvesting work is performed by the reciprocating process has been described. However, the present invention is not limited to this.
The harvesting operation may be performed by a one-way process or a round process.

In the above-described embodiment, each headed vegetable A is sandwiched on both sides by the elastic holding body 47 of the inner rotating portion 33 of the pair of endless rotating bodies 35 of the sandwiching conveyor 25, and each of the headed vegetables A is held. Conveyor for placing the cut part of the root B of the vegetable A
Although the case where it is placed on the revolving upper part 119 of the 26 endless revolving belt 118 and conveyed in a planted state has been described, the present invention is not limited to this. May be conveyed in a planted state while being held by the elastic holding body 47 of the inner turning part 33 of the endless turning body 35 facing the endless turning body 35.

In the above-described embodiment, the endless traveling belt 11 is used.
8 is a pair of endless circulating belt bodies 44 facing the inner circling portions.
Although the case of circling at the same speed as 33 has been described, the present invention is not limited to this, and the endless circling belt 118 circulates at a slightly higher speed than the opposing inner circling portions 33 of the pair of endless circulating belt bodies 44. You may make it.

With such a configuration, the cut portion having the root portion B cut thereon is placed on the upper circling portion 119 of the endless circling belt 118 so that the pair of endless circulating belt members 44 face the inner circling portion. The head vegetables A sandwiched and conveyed by the section 33 are conveyed in a state in which the cut side is slightly inclined ahead in accordance with the circulating speed of the endless circling belt 118.

Then, the head vegetables A are transferred to the outlet 55 at the rear end of the pair of endless revolving belt bodies 44 facing the inner revolving parts 33.
At the same time, the head vegetables A
Falls down on the upper part 119 of the endless revolving belt 118, and the cut part is directed to the front side in the transport direction on the upper part 119 of the revolving belt, and the upper end of the head vegetable A on the opposite side to the cut part is The sheet is placed and transported so as to face the rear side in the transport direction.

Therefore, the upper part 11 of the endless traveling belt 118
9 At the position where the head vegetables A are taken out from the top, each head vegetable A is always conveyed in order in the same direction in order, and these head vegetables A are transported to the upper end of the endless traveling zone 118.
9 It is taken out from above and easily placed on the first work table 256 in the same direction, and the finishing work on the first work table 256 is easily performed.

Next, in the above-described embodiment, the elastic holding member 47 of the pair of endless revolving belt bodies 44 has an upper holding surface portion 47a which can be elastically deformed on the outer surface of the thin plate portion 47c at the upper portion in the width direction. In addition, a case has been described in which the lower holding surface portion 47b that can be elastically deformed is formed at the protruding end portion of the lower holding protrusion 48 in the width direction. However, the present invention is not limited to this, and the holding surface portions 47a, 47b having different protrusion amounts vertically. May be formed in the following various forms using the elastically deformable material described in the above embodiment.

That is, the upper and lower holding surface portions 47a and 47b having different protrusion amounts of the elastic holding member 47 are expanded from the vicinity of the upper end in the width direction of the elastic holding member 47 toward the lower end as shown in FIG. It may be formed on the outer surface of an elastically deformable deformation projection 261 that is opened and inclined and gradually projects in the holding direction. Then, the deformed protrusion 261 which is expanded and inclined is provided.
The outer surface of the thin upper portion is an upper holding surface portion 47a that can be elastically deformed, and the outer surface of the lower portion of the thickness of the deformation projection 261 is a lower holding surface portion 47b that can be elastically deformed.

With this configuration, when the lower portion of each head vegetable A is sandwiched between the inner rotating portions 33 of the pair of endless rotating bodies 35 facing each other, the pair of endless rotating bodies 35 face each other. The upper and lower clamping surfaces 47a of the elastic clamping body 47 of the inner circling portion 33,
The head 47b is pressed against the lower part of the head vegetable A, and is elastically deformed along the lower peripheral surface of the head vegetable A, and the lower part of each head vegetable A is held by the upper and lower holding surfaces 47a and 47b. At the same time, the lower holding surface portion 47b is elastically deformed more greatly than the upper holding surface portion 47a,
At 47b, the lower part of each head vegetable A in the part where the head is firmly held below the position where the upper holding surface portion 47a holds is strongly held.

The upper and lower holding surfaces 47a and 47b having different amounts of protrusion of the elastic holding member 47 are, for example, shown in FIGS.
As shown in the figure, the upper holding surface portion 47a is
An elastically deformable upper holding ridge formed integrally and protruding toward the outer holding direction along the upper end in the width direction.
262 is formed in a substantially arc shape at the protruding end, and the lower holding surface portion 47b is formed.
Is a lower elastically deformable clamping ridge 263 formed integrally with the clamping ridge 262 so as to protrude larger than the clamping ridge 262 in an outward clamping direction along the widthwise lower end of the elastic clamping body 47.
May be formed in a substantially circular arc shape at the protruding end portion.

With this configuration, when the lower portion of each head vegetable A is sandwiched between the inner rotating portions 33 of the pair of endless rotating bodies 35 facing each other, the pair of endless rotating bodies 35 face each other. The upper and lower holding ridges 262 of the elastic holding body 47 of the inner turning portion 33,
The holding surfaces 47a, 47b of the head 263 are pressed against the lower part of the head vegetables A, respectively, and are elastically deformed along the peripheral surface of the lower part of the head vegetables A. The lower portions are clamped respectively, and the lower clamping surface portion 47b of the clamping ridge 263 at the lower portion is fixed to the upper clamping surface portion 47.
The lower portion 47a of the head vegetables A in the portion where the head is firmly formed below the position where the upper holding surface portion 47a holds is elastically deformed more strongly than the lower holding surface portion 47b.

FIG. 20 shows a state in which the holding surfaces 47a, 47b of the upper and lower holding projections 262, 263 of the elastic holding body 47 facing each other at the carry-in port 42 are elastically deformed to hold the lower part of each head vegetable A. Shown by a solid line, and the two-dot chain line is the upper and lower pinching ridges 262.
, 263 before the elastic deformation of the holding surface portions 47a, 47b. FIG. 21 shows the state of the holding surface portions 47a and 47b of the upper and lower holding protrusions 262 and 263 of the opposed elastic holding body 47 that has passed through the carry-in port.

FIG. 22 is a sectional view of the elastic holding member 47 shown in FIG. 20 and FIG. 21, which protrudes integrally along the intermediate portion between the upper and lower holding protrusions 262 and 263 in the outward holding direction. An intermediate clamping surface portion 47d is formed in a substantially arc shape at the protruding end of the formed elastically deformable clamping portion 264 of the intermediate portion, and the intermediate clamping surface portion 47d of the clamping portion 264 of the intermediate portion is
The lower clamping surface 47 has a larger protrusion amount than the upper clamping surface 47a.
b is formed with a smaller protrusion amount.

The holding spaces 34a and 47b of the upper and lower holding protrusions 262 and 263 and the middle holding surface 47d of the middle holding protrusion 264 of the intermediate portion are different from each other. Are formed to expand upward.

With this configuration, when the lower part of each head vegetable A is sandwiched between the inner rotating parts 33 of the pair of endless rotating bodies 35 facing each other, the pair of endless rotating bodies 35 face each other. The upper and lower holding ridges 262 of the elastic holding body 47 of the inner turning portion 33,
The holding surface portions 47a and 47b of the holding member 263 and the intermediate holding surface portion 47d of the holding ridge 264 at the middle portion are respectively pressed by the lower part of the head vegetable A, and are elastically deformed along the peripheral surface of the lower part of the head vegetable A. The lower portions of the head vegetables A are respectively held by the middle and lower holding surface portions 47a, 47b, and 47d, and the lower holding surface portion 47b of the lower holding ridge 263 is connected to the upper holding surface portion 47.
a and the intermediate clamping surface portion 47d
Is larger than the upper clamping surface portion 47a and elastically deforms, and the lower portion of each head vegetable A in the portion where the head is firmly formed below the position where the upper clamping surface portion 47a is clamped in each of the lower clamping surface portion 47b and the intermediate clamping surface portion 47d is stronger. Be pinched.

Further, as shown in FIG. 23, for example, as shown in FIG. 23, upper and lower clamping surfaces 47a and 47b having different protrusion amounts of the elastic clamping member 47 are provided at upper ends of the elastic clamping members 47 in the width direction. Along the outer surface of the thin plate-like portion 47c, and the lower sandwiching surface portion 47b integrally projects in a substantially semicircular shape toward the outward sandwiching direction along the lower end portion in the width direction of the elastic sandwiching body 47. It may be formed in a substantially arc shape at the protruding end of the formed elastically deformable lower holding ridge 263.

With this configuration, when the lower portion of each head vegetable A is sandwiched between the inner rotating portions 33 of the pair of endless rotating bodies 35 facing each other, the pair of endless rotating bodies 35 face each other. The upper and lower clamping surfaces 47a of the elastic clamping body 47 of the inner circling portion 33,
The head 47b is pressed against the lower part of the head vegetable A, and is elastically deformed along the lower peripheral surface of the head vegetable A, and the lower part of each head vegetable A is held by the upper and lower holding surfaces 47a and 47b. At the same time, the lower holding surface portion 47b is elastically deformed more greatly than the upper holding surface portion 47a,
At 47b, the lower part of each head vegetable A in the part where the head is firmly held below the position where the upper holding surface portion 47a holds is strongly held.

[0169]

According to the first aspect of the present invention, the pair of endless revolving bodies are elastically deformed when the headed vegetables are sandwiched between the opposing inner circling portions and elastically clamp the lower part of the headed vegetables. Since each of the elastic holding bodies has a holding surface portion that can be elastically deformed up and down along the elastic holding body, and the lower holding surface portion is formed to protrude in the holding direction from the upper holding surface portion, When the lower portion of the head vegetables is sandwiched between opposing inner circling portions of the pair of endless circling bodies, the upper and lower clamping surfaces of the elastic clamping bodies of the opposing inner circling portions of the pair of endless circling bodies are elastic. The upper and lower clamping surfaces allow the lower portion of the head vegetables to be clamped by the upper and lower clamping surfaces, and the lower clamping surface is elastically deformed to be larger than the upper clamping surface, and the lower clamping surface is firmly below the position where the upper clamping surface clamps. Part to head The bottom can be a strong holding of the head-forming vegetables.

In addition, since the upper and lower portions of the lower part of the head vegetables are held between the upper and lower holding surfaces of the elastic holding body of the opposing inner revolving part, the head vegetables can be stably and sufficiently held in the planted state. Further, since the elastic holding body for holding the head vegetables is formed so as to be elastically deformable, when holding the head vegetables with the elastic holding body, the elastic holding bodies elastically deform along the outer surface of the head vegetables to form the head vegetables. Can be sufficiently sandwiched and damage to the outer leaves of the head vegetables can be prevented.

[0171] Therefore, the lower part of the head vegetables that is firmly headed by the upper holding surface portion of the elastic holding body that is elastically deformed when the lower portion of the head vegetables is held and the lower holding surface portion that protrudes more than the upper holding surface portion is sufficiently secured. Can be pinched. Then, the rooted vegetables in the planted state sandwiched by the elastic sandwiching members of the inner rotating parts opposed to each other of the pair of endless rotating bodies are cut and removed, and the head vegetables are kept in the planted state and rearward in the transport direction. It can be transported reliably toward.

According to the second aspect of the present invention, in addition to the effects of the first aspect, the elastic holding member is formed integrally along the outer peripheral surface of the non-stretchable endless revolving belt. The belt can prevent the elastic holding body from expanding and contracting in the reciprocating direction of the endless revolving body, and can prevent the elastic holding body from stretching and loosening even when the head vegetables are held and transported by the elastic holding body. .

According to the third aspect of the present invention, in addition to the effect of the first aspect, the lower holding surface portion is formed at the projecting end of the holding ridge integrally formed along the lower portion of the elastic holding body. Therefore, the lower holding surface portion of the holding ridge of the elastic holding body that elastically deforms when holding the lower portion of the head vegetable is elastically deformed and closely adheres along the outer surface of the lower portion of the head vegetable, and the lower head surface portion of the head holding vegetable Can firmly clamp the lower part of the head that is firmly formed.

According to the fourth aspect of the present invention, in addition to the effects of the first aspect of the present invention, a pair of endless revolving bodies are provided on the front guide body and the tension member which are provided inwardly in a direction approaching each other. The front turn-over portion is engaged to form a carry-in entrance for carrying in a lower portion of the head vegetables at an inner revolving portion of a pair of opposed endless revolving bodies that move between the front guide body and the tension member. Therefore, the inner revolving portions of the pair of endless revolving bodies forming the carry-in port are inclined inward in the direction approaching each other, and the inner revolving portions facing each other are elastically pinched in accordance with the inclination. The body is at a lower position, and the elastic holding body of the opposed inner circling portion can sufficiently hold the lower part of the lower part of the head vegetables brought into the carry-in port where the head is firmly headed, and can surely convey the head.

Also, since a carry-in port is formed at a position above the cutter for carrying the lower portion of the head vegetables, the lower portion of the head vegetables is carried into the carry-in port, and the lower portion of the head is connected to the elastic holding body of the inner revolving portion facing the lower portion. At the same time, the root portion of the head vegetable can be reliably cut from a predetermined position by a cutter.

According to the fifth aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, the pair of endless revolving bodies have endless engagement ridges on the inner peripheral surface of the endless revolving belt. Since each of the pair of endlessly rotating bodies is rotated while being engaged with the engagement groove, the pair of endlessly rotating bodies are held by the weight of the headless vegetables when nipped and transported. Head pulling vegetables can be reliably moved in the transport direction by each pulley without the body coming off each pulley.

[Brief description of the drawings]

FIG. 1 is a side view of a head vegetable harvester according to an embodiment of the present invention.

FIG. 2 is an explanatory plan view of the same.

FIG. 3 is an enlarged front view of the clamping conveyor.

FIG. 4 is an enlarged plan view of the front side of the clamping conveyor.

FIG. 5 is an enlarged plan view of the rear side of the holding conveyor of the same.

FIG. 6 is an exploded perspective view of a carrying-in entrance adjusting means of the clamping conveyor.

FIG. 7 is a side view of the same assembling state.

FIG. 8 is a plan view for explaining the operation of the carry-in entrance adjusting means.

FIG. 9 is an enlarged side view of the cutting device.

FIG. 10 is an enlarged plan view of the same.

FIG. 11 is an exploded perspective view of the same.

FIG. 12 is a sectional view of a part of the cutting device;

FIG. 13 is a sectional view of the guide wheel adjusting means.

FIG. 14 is a cross-sectional view of the same urging means.

FIG. 15 is a side view of the head cropping machine in a state where the transporting device and the cutting device are lifted.

FIG. 16 is a perspective view of a finishing operation section of the head cropping machine.

FIG. 17 is an explanatory end view showing a state where the head vegetables are held at the loading entrance of the holding conveyor.

FIG. 18 is an explanatory end view in the middle of opposing inner circulating portions of the pair of endless circulating bodies of the clamping conveyor.

FIG. 19 is an explanatory end view in the middle of opposing inner circulating portions of a pair of endless circulating bodies of a sandwiching conveyor according to another embodiment.

FIG. 20 is an explanatory end view showing a state in which head vegetables are held at a carry-in entrance of a holding conveyor according to still another embodiment.

FIG. 21 is an explanatory end view in the middle of opposing inner circulating portions of a pair of endless circulating bodies of the clamping conveyor.

FIG. 22 is an explanatory end view in the middle of opposing inner circulating portions of a pair of endless circulating bodies of a sandwiching conveyor according to still another embodiment.

FIG. 23 is an explanatory end view in the middle of opposing inner circulating portions of a pair of endless circulating bodies of a sandwiching conveyor according to still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 24 Conveying device 25 Nipping conveyor 33 Inner turning part 35 Endless turning body 36 Rear turning part 37 Rear guide body 38 Front turning part 39 Front guide body 40 Tension member 42 Carry-in port 46 Endless turning belt 47 Elasticity Clamping bodies 47a, 262 Upper clamping surface 47b, 263 Lower clamping surface 47d, 264 Intermediate clamping surface 48 Clamping ridge 138 Cutting device 139 Cutter A Heading vegetable B Root of heading vegetable

Continued on the front page (72) Inventor Tomohiko Ota 1-40-2 Nisshincho, Omiya City, Saitama Prefecture Inside the Research Institute for Biological Sciences (72) Inventor Keizo Kato 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Corporation Inside the Sakai Works (72) Inventor Kazumasa Miyamoto 5155 Shiokawa, Oji, Maruko-cho, Nagano Prefecture, Japan Inside (72) Inventor Shinichi Toyama 5155 Shiokawa, Oji-maru, Maruko-cho, Nagano Prefecture Matsuyama Corporation (72) Inventor Minoru Hiramoto 5155 Shiokawa, Maruko-cho, Nagano Prefecture

Claims (5)

[Claims] 1. A traveling device, comprising: a traveling vehicle body; a cutter provided in front of the traveling vehicle body; and a cutter for cutting a root portion of the head vegetable in a planted state. A conveying device having a holding conveyor for holding the head vegetables cut by the cutter of the cutting device in a planted state and conveying the head vegetables from the front side to the rear side,
A pair of endless revolving bodies that are provided so as to be rotatable in opposite directions to each other and convey the head vegetables in a planted state at opposing inner revolving parts; A rotatable front guide that engages with the front folded portions of the pair of endless revolving bodies and guides the front folded portions, and a rear end of the endless revolving body that is spaced apart behind the inside of the front guide. A rotatable tension member that engages and guides the inner turning portions, respectively, and a rotatable rear side that engages the rear turning portions of the pair of endless turning bodies and guides the rear turning portions. And a pair of endless revolving bodies, each of which has an elastic clamping body that elastically deforms and clamps a lower portion of the ball-grown vegetables when the ball-grown vegetables are gripped by opposing inner circulation parts. The elastic holding body of the pair of endless revolving bodies is It has an elastically deformable pinching surface up and down along the elastic holding member, respectively, the lower clamping surface is formed to project toward the clamping direction from the upper clamping surface, heading toppers, characterized in that. 2. The head vegetable harvester according to claim 1, wherein the elastic holding body is formed integrally along the outer peripheral surface of the non-stretchable endless revolving belt. 3. The head vegetable harvester according to claim 1, wherein the lower holding surface portion is formed at a protruding end portion of a holding ridge integrally formed along a lower portion of the elastic holding body. . 4. A front folded portion of the pair of endless revolving bodies is guided by engaging with a front guide body and the tension member which are provided to be inclined inward in a direction approaching each other. A carry-in for carrying a lower part of a head vegetable that is separated and located above the cutter at the inner circling portions of the pair of endless circulating bodies that move between the guide body and the tension member and that opens forward. The head-forming vegetable harvester according to claim 1, wherein a mouth is formed. 5. The front guide body, the tension member and the rear guide body are each formed by a pulley having an engagement groove opened on the outer peripheral surface, and the endless revolving belt of the pair of endless revolving bodies is formed on the inner circumferential side. The head vegetable harvester according to claim 1, further comprising an endless engagement ridge that engages with an engagement groove of each of the pulleys on a surface.