JP4242502B2 - Leaf vegetable harvesting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a leaf vegetable harvesting machine for harvesting leaf vegetables such as spinach, komatsuna, spring chrysanthemum and persimmon.
[0002]
[Prior art]
  Conventionally, as this type of leaf vegetable harvester, for example, leaf vegetable harvesters described in JP-A-7-135831, JP-A-9-271240, JP-A-9-308353, and the like are known. .
[0003]
  The leaf vegetable harvesting machine described in Japanese Patent Application Laid-Open No. 7-135831 and the like is provided with a root cutting portion for cutting the root portion of the leaf vegetable planted in the field at the front lower portion, and the root portion is cut at the root cutting portion. An airframe is provided that includes a transport unit that transports leaf vegetables toward the upper rear side from the lower front end to the upper rear end.
[0004]
  And the conveyance part of this body has the structure provided with the clamping conveyance conveyor which clamps and clamps the leaf vegetables of the standing posture from right and left both sides.
[0005]
[Problems to be solved by the invention]
  However, in a configuration in which leaf vegetables are clamped and conveyed by a pinch conveyor, as in the conventional leaf vegetable harvesting machine described in Japanese Patent Application Laid-Open No. 7-135831, a relatively large pressure is applied to the leaf vegetables. Therefore, the leaf parts of leafy vegetables are easily damaged.
[0006]
  This invention is made | formed in view of such a point, and it aims at providing the leaf vegetable harvester which can prevent the leaf part of leaf vegetables from being damaged.
[0007]
[Means for Solving the Problems]
ContractClaim1The leaf vegetable harvesting machine described isLeafy vegetables provided at the lower front side of the aircraft and vegetated in the field A leaf vegetable harvesting machine comprising: a root cutting unit that cuts a root part of the green leaf; and a transport unit having a transport path gap that transports leaf vegetables cut at the root part toward the rear upper side of the machine body. On the both sides of the transport path gap of the transport unit, the leaf vegetables are transported along the transport path gap while supporting the leaf vegetables in a state where the lower portion is loosely inserted in the transport path gap and stands. A pair of opposing conveyors are provided, and each of the opposing conveyors has an endless body that runs along the gap of the conveying path, and the endless body protrudes toward the gap of the conveying path to project leaf vegetables. A plurality of abutting protrusions that abut on the lower portion are formed at intervals along the traveling direction, and a plurality of the root cutting parts and a plurality of the conveying parts are provided in the machine body to provide a root cutting part group and a conveying part. Forming a group On both sides of each of the transport path gap of the conveying section group, provided the opposing conveyor paired,Next to each otherAboveTwo between the transport path gapAboveEach of the opposite conveyorAboveEndless bodies are arranged close to each other, and each of these endless bodiesAboveThe contact protrusions can be engaged with each other..
[0008]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, the configuration of an embodiment of a leaf vegetable harvester of the present invention will be described with reference to the drawings.
[0009]
  FIG. 1 to FIG. 3 are diagrams showing an entire walking-type leaf vegetable harvesting machine that performs a double-row simultaneous harvesting operation of leaf vegetables A vegetated in a field in house cultivation. In these FIG. 1 to FIG. The airframe 1 is formed in an elongated shape having a longitudinal direction in the traveling direction X with a substantially constant width dimension over the entire length, and is formed in a front, low, and high shape.
[0010]
  The airframe 1 includes a guide portion group 3 at the front end, and a transport portion group 4 is disposed behind the guide portion group 3 from the vicinity of the front end to the upper portion near the rear end. Below the group 3, a root cutting section group 5 is disposed. In addition, the rear end portion of the machine body 1 is provided with a storage section 6 that stores the plurality of leafy vegetables A carried out from the transport section group 4. The storage section 6, the guide section group 3, the transport section The working unit 10 constituted by the part group 4 and the root cutting part group 5 is supported by a traveling unit 7 that causes the machine body 1 to travel in the traveling direction X.
[0011]
  2 and 3, the traveling unit 7 has a vehicle body frame 11. A pair of left and right front wheels 12 are attached to the front left and right of the vehicle body frame 11, and a pair of left and right front wheels 12 are attached to the rear left and right. A rear wheel 13 is attached, and the power from the wheel driving means 15 such as a motor is transmitted to the rear wheel 13 by a wheel power transmission means 16 constituted by a chain transmission mechanism or a belt transmission mechanism, Both rear wheels 13 are rotationally driven by the transmitted power, and the airframe 1 travels. A traveling body 18 is constituted by the front wheels 12, the rear wheels 13, and the like.
[0012]
  In addition, the housing portion 6 is disposed at the upper rear end of the vehicle body frame 11, and a container 19 is detachably installed in the housing portion 6. The container 19 can be installed in the width direction of the body 1 or as required. It is provided to be movable in the length direction. Further, an operation unit 20 is disposed on the left side of the rear end portion of the vehicle body frame 11, and the operation operation of the airframe 1 is performed by the operation unit 20.
[0013]
  Further, four connecting rods 21 having universal joints 22 attached to both ends are connected to predetermined four positions in the front, rear, left and right of the body frame 11, and elastic bodies 23 such as coil springs are connected to two positions at the upper rear end. Are coupled to each other, and a swing frame 25 is swingably supported by the vehicle body frame 11 with the connecting rod body 21 and the elastic body 23 interposed therebetween.
[0014]
  A grounding body 26 such as a pair of left and right gauge rollers is rotatably attached to the front end portion of the swing frame 25. For example, the vehicle body frame 11 in the horizontal state shown in FIG. As shown in FIG. 5, the swing frame 25 does not tilt and the guide portion group 3 supported by the swing frame 25 is not tilted even if it is tilted to the left or right depending on the situation. The transport unit group 4 and the root cutting unit group 5 maintain a constant horizontal state and maintain a certain range of height positions.
[0015]
  In addition, the width dimension W of this traveling part 7₁As shown in FIG. 3, the width dimension W of the root cutting portion group 5 is₂It has a smaller width dimension, and the width dimension W of the traveling part 7₁As shown in FIG. 1, the width is smaller than the width of each of the guide section group 3 and the transport section group 4. Furthermore, the width dimension of the accommodating part 6 is substantially the same width corresponding to the width dimension of the guide part group 3.
[0016]
  The guide section group 3 includes, for example, a plurality of rows vegetated in a field in house cultivation, that is, a plurality of strips, for example, a leaf portion A in a state where four strips of leafy vegetables A hang down₁The four leafy vegetables A are simultaneously guided toward the transport unit group 4 while weeding.
[0017]
  As shown in FIG. 1, the guide portion group 3 is composed of a plurality of, for example, four guide portions 3a, 3b, 3c, 3d. Each guide portion 3a, 3b, 3c, 3d is shown in FIG. As shown in FIG. 9, leaf part A of leafy vegetables A dripping from the tip side.₁Enter the lower part of the leaf A₁The lower surface of the leaf is in contact with the outer peripheral surface, and the contacted leaf A₁In response to the resistance of the leaf part A, the part in contact with the leaf vegetable A rotates in the direction from the top to the bottom, and the entangled leaf part A₁And a pair of left and right elongated cylindrical rotating guide bodies 31a and 31b for guiding the leaf vegetable A toward the conveying section group 4 are provided.
[0018]
  Each of these rotation guide bodies 31a and 31b is formed in an elongated cylindrical shape having a conical portion with a conical tip at the tip, and is substantially along the traveling direction X of the airframe 1, It is arranged to be inclined downward from the side toward the distal end side, and is inclined to the horizontal direction approaching the leaf vegetables from the distal end side to the proximal end side, that is, in a direction approaching each other.
[0019]
  Of the rotation guide bodies 31a, 31b of the guide portions 3a, 3b, 3c, 3d, the rotation guide body 31a of the guide portion 3a, the rotation guide body 31b of the guide portion 3b, and the rotation guide of the guide portion 3c. The body 31a and the rotation guide body 31b of the guide portion 3d are supported by a fixed support body 32 having a base end portion fixed to the transport start end portion of the transport portion group 4 as shown in FIG. . That is, each of these rotation guide bodies 31a and 31b is rotatably attached to the guide body attachment rod-like portion 33 of the fixed support body 32, and the leaf portion A in contact therewith.₁Rotates, that is, rotates in response to the rotational force from. An elongated cylindrical rotating body 31c is rotatably attached to the guide body mounting rod 33 of the fixed support 32 of the guide portions 3a and 3d so as to face the rotation guide bodies 31a and 31b. The rotating body 31c is located on the left and right side edges of the airframe 1.
[0020]
  On the other hand, of the rotation guide bodies 31a, 31b of the guide portions 3a, 3b, 3c, 3d, the rotation guide body 31b of the guide portion 3a, the rotation guide body 31a of the guide portion 3b, and the rotation guide of the guide portion 3c. As shown in FIG. 7, the body 31b and the rotation guide body 31a of the guide portion 3d are arranged at the base end portion of the root cutting blades 61a, 61b, 61c, 61d, which will be described later, of the root cutting portion group 5. Is supported by a fixed movable support 35. That is, each of these rotation guide bodies 31a and 31b is rotatably attached to the guide body mounting rod-like portion 36 of the movable support 35, and the leaf A in contact therewith.₁Rotates, that is, rotates in response to the rotational force from. Further, each of these rotation guide bodies 31a, 31b vibrates along the horizontal left-right direction of the machine body 1 with the vibration of the root cutting blades 61a, 61b, 61c, 61d.
[0021]
  The transport unit group 4 is a plurality of strips guided by the guide unit group 3, for example, four strips of leafy vegetables A, and the root cutting unit group 5 includes the root portion A.₂The cut leafy vegetables A are transported toward the container 19 of the container 6 located at the rear end of the machine body 1.
[0022]
  As shown in FIG. 1, the transport unit group 4 includes a plurality of, for example, four transport units 4a, 4b, 4c, and 4d, and is a front portion of the transport units 4a, 4b, 4c, and 4d. A pair of opposing conveyors 41a and 41b are provided on the carry-in side and located on both sides of the conveyance path gap 40, and a single-multi-row alignment conveyer 42 is provided on the carry-out side which is the rear part. It has been.
[0023]
  These opposing conveyors 41a, 41b are not clamped and clamped while supporting a plurality of strips, for example, four strips of leafy vegetables A, in a state where the lower portion is loosely inserted into the transport path gap 40. The leaf vegetable A is transported along the transport path gap 40, that is, the leaf vegetable A is transported. On the other hand, the double-row aligned transport conveyor 42 transports a plurality of strips, for example, four strips of leafy vegetables A, which are in the same direction, that is, for example, the right side of the machine body 1 laid down on the upper surface. To do.
[0024]
  Each of the opposed conveyors 41a and 41b is inclined at a predetermined angle, for example, an acute angle θ shown in FIG. 1, with respect to the double-lined aligned conveyor 42 along the traveling direction X of the machine body 1. Arranged. Of these opposing transport conveyors 41a and 41b, the transport end of one counter transport conveyor 41a opposite to the side on which the leaf vegetables A lie down projects backward from the transport end of the other counter transport conveyor 41b. , Located above the conveyance start end of the double-row alignment conveyance conveyor 42. That is, a notch 43 is formed at the end of conveyance of each of the opposed conveyors 41a and 41b.
[0025]
  Further, as shown in FIGS. 10 and 11, each of these counter conveyors 41 a and 41 b is an endless body 45 attached so as to be able to run between the upper and lower counter conveyor frames 44 supported by the swing frame 25. have.
[0026]
  The endless body 45 travels along the conveyance path gap 40, and is formed in a narrow shape with a relatively soft elastic material such as sponge or rubber material, and the outer peripheral surface of the endless body 45 In this case, a plurality of contact protrusions 46 projecting toward the conveyance path gap 40 are integrally formed over the entire circumference at predetermined intervals along the traveling direction.
[0027]
  Each of these contact protrusions 46 is formed in a vertically long rectangular plate shape in the vertical direction, and as shown in FIG. 11, the adjacent contact protrusions 46 of one of the opposite conveying conveyors 41a and these contact protrusions A pair of abutting protrusions 46 are formed by the adjacent abutting protrusions 46 of the other opposite conveying conveyor 41b opposite to each other. The side portion is loosely inserted, and a single leaf vegetable A is supported and conveyed by the set of contact protrusions 46 in a standing posture.
[0028]
  Further, as shown in FIG. 10, the endless bodies 45 of the two opposing transport conveyors 41a and 41b disposed between the adjacent transport path gaps 40 are disposed close to each other, and these endless bodies The contact protrusions 46 of the body 45 can be engaged with each other. Note that the endless bodies 45 of the paired opposing transport conveyors 41a and 41b disposed on both sides of the transport path gap 40 are disposed at a predetermined distance from each other.
[0029]
  And each endless body 45 of one opposing conveyance conveyor 41a is driven by a driven pulley or the like that is located at both ends and rotates around a rotation center axis along the substantially vertical direction of the machine body 1 as shown in FIG. It is wound around the rotating bodies 48 and 48. Each endless body 45 of the other opposing conveyor 41b is positioned at both ends and is driven by a driven rotating body 48 such as a driven pulley that rotates about a rotation center axis along the substantially vertical direction of the machine body 1 and a driving force such as a driving pulley. Power from a conveyor driving means 50 such as a motor is transmitted to the driving rotor 49 by a counter-conveying conveyor power transmission means 51, and the driving rotor 49 is transmitted to the driving rotor 49 by the transmitted power. The endless body 45 of each of the opposed conveyors 41a and 41b travels and rotates. Note that the endless body 45 of the opposed transport conveyor 41a of the transport section 4a rotates based on the rotational drive of a driving rotor 49a such as a driving pulley provided at an intermediate position.
[0030]
  On the other hand, as shown in FIG. 1 and FIG. 2, the double-row alignment transport conveyor 42 is mounted at the front and rear ends between a pair of left and right opposing transport conveyor frames 54 supported by the swing frame 25. A pair of rotating shaft bodies 55 facing each other is provided, and an endless belt-like body 56 is wound around these rotating shaft bodies 55.
[0031]
  Both of these rotary shaft bodies 55 rotate around the rotation center axis along the width direction of the machine body 1, and the rotary shaft body 55 positioned at the front end of the double-row alignment transport conveyor 42 includes a motor or the like. The power from the conveyor driving means 50 is transmitted by the power transmission means 58 for the conveyer conveyor, the rotating shaft body 55 is driven to rotate by the transmitted power, and the endless belt 56 follows the longitudinal direction of the machine body 1. Run and turn around.
[0032]
  The endless belt 56 is formed in a wide shape having a width substantially the same as the width of the machine body 1 by using a relatively soft elastic material such as sponge or rubber material. For example, four strips of leafy vegetables A that lie down in the same direction on the flat upper surface are transported in an aligned manner.
[0033]
  The root cutting part group 5 includes, for example, a plurality of strips vegetated in a field in house cultivation, for example, roots A of four strips of leafy vegetables A.₂Is to cut.
[0034]
  As shown in FIG. 1, this root cutting part group 5 is composed of a plurality of, for example, four root cutting parts 5a, 5b, 5c, 5d, and each root cutting part 5a, 5b, 5c, 5d is shown in FIG. As shown in Fig. 4, for example, the root A of the four leafy vegetables A being guided by the guide unit group 3 while moving in the soil of the field.₂Are provided with root cutting blades 61a, 61b, 61c, 61d in the form of elongated rectangular plates along the horizontal direction. The root cutting blade 61a of the root cutting portion 5a and the root cutting blade 61b of the root cutting portion 5b are integrally formed to form a substantially square shape in plan view. Similarly, the root cutting blade of the root cutting portion 5c 61c and the root cutting blade 61d of the root cutting part 5d are integrally formed to have a substantially square shape in plan view.
[0035]
  These root cutting blades 61a, 61b, 61c, 61d are arranged in the horizontal left-right direction of the machine body 1 by a vibration support device 63 fixed to the tip of the swing frame 25, as shown in FIGS. It is supported so as to be able to vibrate, is disposed so as to be movable at a certain depth, and is capable of maintaining a certain horizontal state, and is inclined downward in the traveling direction X of the airframe 1.
[0036]
  This vibration support device 63 has a pair of left and right fixed rods 64 inclined obliquely forward and downward, and the central portion of the rotating rod 65 is located at the tip of each of the fixed rods 64. These pivot rods 65 are pivotably coupled, and the respective leading ends of both pivot rods 65 are coupled to a rod coupling portion 66 projecting rearward from the tip continuous portion of the root cutting blades 61a, 61b, 61c, 61d. It is fixed.
[0037]
  On the other hand, the vibration support device 63 has blade driving means 68 such as a motor, and the blade driving means 68 includes blade power transmission means 69 configured by a chain transmission mechanism or a belt transmission mechanism having a cam device. Is connected. When the pair of left and right movable rods 70 reciprocate in response to the power from the blade power transmission means 69, both the rotating rods 65 reciprocate with a predetermined angle around the center. The root cutting blades 61a, 61b, 61c, 61d vibrate along the horizontal left-right direction of the machine body 1.
[0038]
  Next, the operation of the above embodiment will be described.
[0039]
  When an operator operates the operation unit 20 of the machine body 1 for the simultaneous harvesting operation of leafy vegetables A, power is supplied from a power source 71 such as a battery, and the conveyor driving means 50 and the blade driving means 68 are operated. Start.
[0040]
  Based on the start of this operation, the endless bodies 45 of the opposed conveyors 41a and 41b are rotated by the power from the conveyor driving means 50, and the endless belts 56 of the double-row aligned conveyor 42 are rotated. To do. Further, the root cutting blades 61a, 61b, 61c, 61d vibrate by the power from the blade driving means 68.
[0041]
  Under such driving conditions, when the operator further operates the operation unit 20 of the machine body 1, the wheel driving means 15 is supplied with electric power from the power source 71, and the power from the wheel driving means 15 causes the rear wheels 13 is driven to rotate, and the body 1 travels in the traveling direction X.
[0042]
  Then, by the traveling of the airframe 1, for example, the leaf portion A in a state where the four leafy vegetables A hang down in the guide portion group 3.₁These four strips of leafy vegetables A are guided toward the transport unit group 4 at the same time.
[0043]
  In addition, during the guidance by the guide unit group 3, for example, the root A of the four leafy vegetables A vegetated in the field by the root cutting unit group 5₂Are disconnected at the same time.
[0044]
  And this root A₂When the cut leafy vegetables A are guided one after another from the guide unit group 3 to the transport unit group 4, for example, the four leaf vegetables A stand in a plurality of pairs of opposed transport conveyors 41a and 41b of the transport unit group 4 Are successively conveyed along the conveying path gap 40, and thereafter, for example, the four strips of leafy vegetables A are conveyed in an aligned manner in a posture in which they are laid down in the same direction.
[0045]
  That is, a notch 43 is present at the end of conveyance of the opposite conveying conveyors 41a and 41b, and each opposite conveying conveyor 41a and 41b is inclined with respect to the double-row aligned conveying conveyor 42 by an angle θ in the horizontal direction. Therefore, the leaf vegetables A in a standing posture are separated from the opposite conveying conveyor 41a and fall down diagonally rightward with respect to the traveling direction X of the machine body 1.
[0046]
  When moving from the opposite conveyors 41a, 41b to the double-strip alignment conveyor 42, the lower end of the leaf vegetable A that has fallen diagonally rightward with respect to the traveling direction X of the machine body 1 As a force acting in the direction opposite to the traveling direction of the machine body 1 is exerted from the aligning conveyor 42, each leaf vegetable A is laterally moved in the same direction toward the right side with respect to the traveling direction X of the machine body 1, as shown in FIG. Changed to a fallen posture.
[0047]
  Next, the four strips of leafy vegetables A carried out from the transport unit group 4 fall under its own weight and are stored in a state of being arranged in the container 19 of the storage unit 6.
[0048]
  Therefore, when the operator appropriately changes the direction of the machine 1 and, for example, runs the machine 1 over the entire field in the house, all the leaf vegetables A vegetated on the field in the machine 1 are harvested simultaneously. The
[0049]
  Thus, according to the above-described embodiment, the leaf portion A in a state where the guide portion group 3 is hung.₁The plurality of leafy vegetables A are guided toward the transport unit group 4 while raising the root part A by the root cutting unit group 5.₂Since multiple strips of leafy vegetables A are transported toward the upper rear, multiple strips of leafy vegetables A are harvested together, improving work efficiency compared to the conventional single-harvesting walk-type leafy vegetable harvester it can.
[0050]
  Further, since the traveling unit 7 travels the harvested portion of the leaf vegetable A in the field, the front and rear wheels 12 and 13 and the grounding body 26 of the traveling unit 7 do not step on the leaf vegetable A, and Since damage can be prevented and the entire field can be cultivated, there is no need to manually harvest the leafy vegetables A planted in the vicinity of both side edges of the field in the house, and the work efficiency can be further improved.
[0051]
  Further, since the rocking frame 25 supports the root cutting unit group 5, the transport unit group 4 and the guide unit group 3, the root cutting unit group 5, the transport unit group 4 and the guide unit group 3 are connected to the ground surface of the field, etc. Accordingly, the vehicle body frame 11 is not inclined with the vehicle body frame 11 and is maintained at a certain range of height positions so that the work can be performed in an appropriate state.
[0052]
  Further, since the width dimension of the accommodating portion 6 is set to be substantially the same dimension corresponding to the width dimension of the guide portion group 3, the accommodating portion 6 is smaller than the width dimension of the accommodating portion 6 smaller than the width dimension of the guide portion group 3. The space for mounting the relatively large container 19 can be easily secured. Since the width dimension of the accommodating part 6 is a dimension corresponding to the width dimension of the guide part group 3, the plurality of leafy vegetables A can be carried out from the transport part group 4 as they are.
[0053]
  Furthermore, since the airframe 1 is formed in an elongated shape in the traveling direction with a substantially constant width dimension over the entire length, the weight balance of the entire airframe 1 can be improved.
[0054]
  Further, the opposed conveying conveyors 41a and 41b on the carry-in side of the conveying unit group 4 support and convey the leaf vegetables A in a state where the lower portion is loosely inserted in the conveying path gap 40 and stands. Therefore, the leaf vegetable A is not subjected to a load higher than its own weight, and an unreasonable force does not act on the leaf vegetable A during the transportation.₁Can be prevented from being damaged.
[0055]
  Further, since the contact protrusions 46 of the endless body 45 of the opposite conveying conveyors 41a and 41b of the conveying unit group 4 are in contact with the four portions of the lower part of the leaf vegetable A, the leaf vegetable A does not slide down, and the leaf vegetable A Can be smoothly conveyed, and leaf vegetables A can be prevented from falling due to their own weight during the conveyance.
[0056]
  In addition, since each contact protrusion 46 of the endless body 45 of one opposing transport conveyor 41a of the transport section group 4 engages with each contact protrusion 46 of the endless body 45 of the other counter transport conveyor 41b, By running the two endless bodies 45, both the endless bodies 45 can be traveled. For example, the power transmission means 51 for the opposed transport conveyor can be made compact. Furthermore, since the endless bodies 45 of the opposing transport conveyors 41a and 41b are arranged close to each other, it is possible to deal with narrow spaces.
[0057]
  Further, the double-row alignment conveying conveyor 42 on the carry-out side of the conveyance unit group 4 conveys a plurality of leafy vegetables A lying in the same direction in an aligned manner on the upper surface. A plurality of leafy vegetables A from the conveyor 42 are arranged and accommodated in the accommodating portion 6, and an operation of organizing the leafy vegetables A, for example, an operation of arranging and re-accommodating can be made unnecessary.
[0058]
  In addition, a plurality of pairs of opposing conveyors 41a and 41b are provided in the conveyor unit group 4 so as to be inclined in the horizontal direction with respect to the double-lined aligned conveyor 42, and one of the opposite sides to the side on which the leaf vegetable A falls sideways is provided. Since the conveyance end of the counter conveyor 41a protrudes rearward from the conveyance terminal of the other counter conveyor 41b and is positioned above the conveyance start of the double-lined alignment conveyor 42, during conveyance by the conveyance unit group 4, It is possible to appropriately change the posture of the plurality of leafy vegetables A from the standing posture to the posture that lies in the same direction toward the right side of the body 1.
[0059]
  Furthermore, the double-row aligned conveyor 42 conveys the endless strip 56 wound around a pair of rotating shaft bodies 55, thereby reliably transporting the leafy vegetables A lying in the same direction without any damage. it can.
[0060]
  Further, the root cutting blades 61 a, 61 b, 61 c, 61 d of the root cutting part group 5 are root parts A of a plurality of leafy vegetables A being guided by the guide part group 3.₂Before the leaves A of the plurality of leaves are separated from the guide section group 3.₂Will be cut off, and the leaf portion A on the guide end side of the guide portion group 3₁The force of trying to forcibly wake up the leaf part A₁Can be prevented from being damaged.
[0061]
  Further, since the root cutting blades 61a, 61b, 61c, 61d of the root cutting section group 5 are supported by the swing frame 25 to which the grounding body 26 is attached, it is prevented from entering deeply into the soil. The root A of leafy vegetables A₂Can be reliably cut at a predetermined position.
[0062]
  Further, even if the machine body 1 swings according to the condition of the ground of the field, the root cutting blades 61a, 61b, 61c, 61d maintain a constant horizontal state, so that the root cutting blades 61a, 61b, 61c, 61d It is prevented that the left and right end sides of the rice plant move up and down, and the root A of the leaf vegetable A₂Can be reliably cut at a predetermined position.
[0063]
  Further, the root part A of the leaf vegetable A is controlled by the vibration of the root cutting blades 61a, 61b, 61c, 61d inclined downward in the traveling direction of the airframe 1 while suppressing the change in the posture of the leaf vegetable A at the time of cutting.₂Can be reliably cut at a predetermined position.
[0064]
  In addition, the rotation guide bodies 31a and 31b of the guide section group 3 have leaf portions A on which leafy vegetables A hang down from the tip-like end portions.₁Leaves A and leaves A₁Direction where the part which contacts the lower surface of the leaflet on the outer peripheral surface and contacts with leafy vegetables A is directed downward from above, that is, leaf part A₁Leaf part A while rotating in a direction to reduce friction generated in₁Leaves A part of leaf vegetable A₁Unreasonable force does not act on leaf A₁Is also prevented, leaf part A of leaf vegetables A₁Can prevent the wound from being damaged, and entangled leaves A₁Can be loosened to an appropriate state.
[0065]
  Furthermore, the rotation guide bodies 31a and 31b of the guide section group 3 are provided in an inclined manner toward the base end side in the horizontal direction approaching the leaf vegetable A, that is, in the direction in which the base end portions of the rotation guide bodies 31a and 31b approach each other. Therefore, the leaf portion A of the leaf vegetable A at the proximal end portion of the rotation guide bodies 31a and 31b of the guide portion group 3₁Can be weeded properly.
[0066]
  In addition, the rotation guide bodies 31a and 31b of the guide section group 3 are connected to the leaf section A.₁The leaf part A of leaf vegetables A₁Can be reliably prevented from being damaged.
[0067]
  Further, the leaves can be effectively separated by the left and right vibrations of the rotation guide bodies 31a and 31b, and the leaf portion A of the leaf vegetable A is obtained.₁Can be weeded in a more appropriate state.
[0068]
  In the above-described embodiment, the configuration of the walk-type leaf vegetable harvester has been described. However, for example, the configuration of the riding-type leaf vegetable harvester is provided by providing the operator's cockpit or the like on the body 1. You can also.
[0069]
  In any of the embodiments, the traveling body 18 of the traveling unit 7 can be constituted by a crawler.
[0070]
  Further, in any of the embodiments, the guide unit group 3, the transport unit group 4, and the root cutting unit group 5 have been described with respect to, for example, four strips of leafy vegetables A, but are not limited to four. It can also be set as the object for leaf vegetables A, such as Article 2, Article 3, Article 5, Article 6, Article 7.
[0071]
  In any of the embodiments, the transport units 4a, 4b, 4c, 4d are provided with a plurality of pairs of opposed transport conveyors 41a, 41b on the carry-in side and one double-row aligned transport conveyor 42 on the carry-out side. However, for example, a configuration in which a plurality of pairs of opposed conveying conveyors 41a and 41b are provided over the whole can be adopted.
[0072]
  On the other hand, as shown in FIG. 14, the guide section group 3 is adjusted so that the height of the ground can be adjusted by interposing the transport section group 4 in the swing frame 25 of the traveling section 7 so that it can cope with various types of leafy vegetables A having different sizes. It can also be set as the structure supported.
[0073]
  That is, a plurality of pairs of rotation guide bodies 31a and 31b of the guide section group 3 are fixed to the opposing transport conveyor frame 44 of the transport section group 4, and the central part of the long-side direction of the double-row alignment transport conveyor 42 of the transport section group 4 A long hole 72 is provided in the long hole 72. By changing the attachment position of a fastener 73 composed of bolts, nuts, etc. to the long hole 72, the entire transport unit group 4 is rotated around the vicinity of the long hole 72 by a predetermined angle. It is also possible to adjust the ground height position of the rotation guide bodies 31a and 31b.
[0074]
  Similarly, as shown in FIG. 15, a plurality of pairs of opposed conveying conveyors 41a and 41b of the guide unit group 3 and the conveying unit group 4 are arranged in the vertical direction so as to cope with various types of leafy vegetables A having different sizes. It can also be set as the structure which carried out.
[0075]
  And by this structure, even if it is a comparatively small leaf vegetable A in the rotation guide bodies 31a and 31b of the lower guide part group 3, the leaf part A in the drooped state₁Is raised and weeded, and this weeded leafy vegetable A is kept properly in a standing position on a plurality of pairs of opposed conveying conveyors 41a and 41b in the lower conveying unit group 4 It is conveyed toward the double-row alignment conveying conveyor 42. On the other hand, the leaf portion A in a state where a relatively large leaf vegetable A hangs down in the rotation guide bodies 31a and 31b of the upper guide portion group 3.₁Is raised and chopped, and the chopped leaf vegetables A are stably transported toward the double-row aligning and conveying conveyor 42 in a standing posture by a plurality of pairs of upper and lower opposed conveying conveyors 41a and 41b.
[0076]
  Furthermore, in any of the embodiments, as shown in FIGS. 10 and 11, each of the opposed conveyors 41a and 41b is attached so that an endless body 45 can travel between the upper and lower opposed conveyor frames 44. A plurality of contact projections 46 are integrally formed over the entire circumference on the outer peripheral surface of 45, and the configuration in which each of these contact projections 46 is formed in a vertically long rectangular plate shape has been described. As shown in FIG. 16, each contact protrusion 46a may be formed in a hemispherical shape or a semi-cylindrical shape.
[0077]
  Further, the machine 1a of the leaf vegetable harvesting machine shown in FIG. 17 includes a transport unit group 104 having a configuration different from that of the transport unit group 4 in the machine 1 in the above embodiment.
[0078]
  The transport unit group 104 includes a plurality of, for example, four transport units 104a, 104b, 104c, and 104d. These transport units 104a, 104b, 104c, and 104d are located on both sides of the transport path gap 40. A pair of opposing conveyors 141a and 141b are provided from the vicinity of the front end of the machine body 1a to the upper part of the vicinity of the rear end.
[0079]
  Each of these opposed transport conveyors 141a and 141b has an endless body 145 attached between the left and right opposed transport conveyor frames 144 supported by the swing frame 25, and this endless body 145 is the left-right direction of the machine body 1a. Is wound around a rotating body 150 such as a plurality of pulleys that rotate about a rotation center axis along the rotation path, and can travel along the conveyance path gap 40.
[0080]
  Further, as shown in FIG. 18, the endless body 145 is formed in a narrow shape by using a relatively soft elastic material such as sponge or rubber material. A plurality of contact protrusions 146 in the form of elongated bars protrude along the running direction over the entire circumference at a predetermined interval, and one end portion of each contact protrusion 146 in the long side direction is the transport path. It protrudes toward the gap 40 side.
[0081]
  A pair of abutting protrusions are formed by the adjacent abutting protrusions 146 of one opposed conveying conveyor 141a and the abutting abutting protrusion 146 of the other opposed conveying conveyor 141b facing the abutting protrusion 146. A portion 146 is formed, and a lower part of one leaf vegetable A is inserted between one end portions of the pair of contact protrusions 146, and one leaf vegetable A stands on the pair of contact protrusions 146. It is supported and transported in the state of the posture. Further, the endless bodies 145 of the two opposing transport conveyors 141a and 141b disposed between the adjacent transport path gaps 40 are disposed in close proximity to each other, and the contact protrusions 146 of the endless bodies 145 are respectively disposed. Since the other end portions of the two end portions engage with each other, similarly to the endless body 45, both endless bodies 145 travel by the traveling drive of one endless body 145 based on the power from the power transmission means 51 for the opposite conveying conveyor..
[0082]
  Moreover, the width dimension W of the traveling part 7₁Is the width dimension W of the root cutting part group 5₂The width dimension of the guide section group 3 and the width dimension of the transport section group 4 may be the same. The width dimensions of the root cutting section group 5, the guide section group 3 and the transport section group 4 may be the same. The following configuration may be used.
[0083]
  Furthermore, each rotation guide body 31a, 31b is not limited to the structure which vibrates in the horizontal left-right direction of the airframe 1, For example, the structure which vibrates in the horizontal front-back direction of the airframe 1, or any direction from the front-back, left-right direction It can also be set as the structure which vibrates in the horizontal inclining direction which inclined in the direction which should just be able to vibrate in the horizontal direction of the body 1.
[0084]
  Further, the root cutting blades 61a, 61b, 61c, 61d are not limited to the configuration that vibrates in the horizontal left-right direction of the body 1, and for example, any configuration that vibrates in the horizontal front-rear direction of the body 1 or from the front-rear, left-right direction. It can also be set as the structure which vibrates in the horizontal inclination direction inclined in the direction, and what is necessary is just the structure which can be vibrated in the horizontal direction of the body 1.
[0085]
【The invention's effect】
  Claim1According to the described invention,The counter conveyor of the transport unit supports and transports the leaf vegetables in a posture in which the lower part is loosely inserted in the transport path gap, and an unreasonable force may act on the leaf vegetables during this transport. In addition, the leaf parts of leaf vegetables can be prevented from being damaged, and each abutment protrusion of the endless body comes into contact with the lower part of the leaf vegetables, so that the leaf vegetables can be transported smoothly, and the leaf vegetables fall under their own weight during transportation. In addition, since a plurality of pairs of opposed conveyors in the transport unit group support and convey a plurality of leafy vegetables, a plurality of leafy vegetables are harvested together, compared to the conventional one-row harvesting, Can improve work efficiency,Since each abutment protrusion of the endless body of one counter conveyor is engaged with each abutment of the endless body of the other counter conveyor, both endless bodies are caused to travel by running one endless body. be able to.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a leaf vegetable harvester of the present invention.
FIG. 2 is a side view showing the same leaf vegetable harvester.
FIG. 3 is a plan view in which a part of the leaf vegetable harvester is omitted.
FIG. 4 is a front view showing a vehicle body frame in a horizontal state of a traveling unit of the leaf vegetable harvesting machine.
FIG. 5 is a front view showing a state in which the vehicle body frame of the traveling unit is tilted.
FIG. 6 is a side view showing a fixed rotation guide body of the guide part of the leaf vegetable harvesting machine.
FIG. 7 is a side view showing a vibrating rotation guide body of the guide part of the leaf vegetable harvesting machine.
FIG. 8 is a plan view showing a rotation guide body of the same guide unit.
FIG. 9 is a longitudinal sectional view of a rotation guide body of the same guide unit.
FIG. 10 is a plan view showing an opposing transfer conveyor of the transfer unit of the leaf vegetable harvesting machine.
FIG. 11 is a partially enlarged plan view showing the opposite conveying conveyor of the conveying unit.
FIG. 12 is a plan view showing a root cutting part of the same leaf vegetable harvester.
FIG. 13 is a side view in which a part of the root cutting part is omitted.
FIG. 14 is a side view showing another embodiment of the same leaf vegetable harvester.
FIG. 15 is a side view showing still another embodiment of the same leaf vegetable harvester.
FIG. 16 is a plan view showing another embodiment of the transport unit of the same leaf vegetable harvester.
FIG. 17 is a side view showing another embodiment of the same leaf vegetable harvester.
FIG. 18 is a partially enlarged plan view showing an opposing transfer conveyor of the transfer unit of the leaf vegetable harvesting machine.
[Explanation of symbols]
        1,1a Aircraft
        4,104 Transport unit group
        4a, 4b, 4c, 4d, 104a, 104b, 104c, 104d
        5 root cutting group
        5a, 5b, 5c, 5d Root cutting part
        40 Transfer path gap
        41a, 41b, 141a, 141b Counter conveyor
        45,145 endless body
        46,146 Contact protrusion
        A Leafy vegetables
        A₁    Leaf
        A₂    Root

Claims (1)

A root cutting part that is provided at the front lower part of the aircraft and cuts the root part of leafy vegetables vegetated in the field;
A leaf vegetable harvesting machine comprising a conveyance section having a conveyance path gap that conveys leaf vegetables whose root parts have been cut at the root cutting section toward the upper rear side of the machine body,
On both sides of the transport path gap of the transport unit, leaf vegetables are transported along the transport path gap while supporting the leaf vegetables in a state of being in a standing posture with the lower portion being loosely inserted into the transport path gap. A pair of opposing conveyors is provided,
Each of the opposed conveyors has an endless body that runs along the transport path gap, and the endless body projects toward the transport path gap side and comes into contact with a lower portion of the leaf vegetable. Protrusions are formed at intervals from each other along the running direction,
The machine body is provided with a plurality of root cutting sections and transport sections to form a root cutting section group and a transport section group, and a pair is formed on both sides of the transport path gap of the transport section group. There is a counter conveyor,
In close proximity to each of said endless member of two of the opposed conveyor disposed between the transport path gap adjacent arranged, and each of said abutting projection of the endless member can engage with each other leaf vegetables such harvester shall be the features that it has.

Images