JP2002167022A - Carrying device and agricultural machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying device capable of appropriately carrying the agricultural products of any size. SOLUTION: A corrugated belt conveyor 76 is provided with a pair of endless turning bodies 92 positioned opposite to each other. Both the endless turning bodies 92 can be turned so that the opposite surfaces thereof are moved in the same direction. Each endless rotating body 92 is provided with carrying bodies 95 respectively formed of a plate-like elastic member 101 to be moved in response to the turning motion of the endless turning body 92. The carrying body 95 is provided with a flexible support part 111 having flexibility and for picking up the agricultural products W and lifting it for carrying at an approach side position of the endless turning body 92.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport device and an agricultural work machine capable of properly transporting crops without inadvertently damaging the crops.

[0002]

2. Description of the Related Art As a conventional transport device, for example, a transport device for a harvester described in Japanese Utility Model Laid-Open No. 59-170430 is known.

The transfer device described in Japanese Utility Model Laid-Open Publication No. Sho 59-170430 is provided with a pair of endless revolving bodies which are positioned so as to be separated from each other and move so that the opposing surfaces move in the same direction. In addition, the outwardly circulating portion of each endlessly circulating body is supported by a number of springs arranged side by side so as to be able to advance and retreat via rollers. Then, the crop is lifted and transported to a predetermined position while being clamped from both left and right sides in the forward traveling portion of each endless traveling body.

[0004]

However, the transfer apparatus described in the above-mentioned conventional Japanese Utility Model Application Laid-Open No. Sho 59-170430 may not be able to properly transfer the crop when the size of the crop is not constant. I have a problem.

[0005] That is, for example, when the crop is large, an unreasonable force by a spring is applied to the crop from the outward circulating portion of the endless revolving body, and the crop may be inadvertently damaged. On the other hand, if the crop is small, the cropping force does not act reliably on the crop from the outward circulating portion of the endless revolving body, and the crop may drop during transportation and may be inadvertently damaged.

The present invention has been made in view of the above points, and provides a transport device and an agricultural work machine capable of appropriately transporting agricultural crops without carelessly damaging the agricultural crops regardless of the size of the agricultural crops. The purpose is to do.

[0007]

According to a first aspect of the present invention, there is provided an endless revolving body which is provided so as to be revolvable in a state of being opposed to each other, and reciprocates so that the opposing surfaces move in the same direction. And a transporting body provided on at least one of the endless revolving bodies so as to protrude outward of the endless revolving bodies, and moving in accordance with the revolving of the endless revolving bodies. , The carrier is formed of a plate-like elastic member,
Both ends of the carrier are attached to the endless revolving body,
The central portion of the carrier is a flexible support portion, and the support portion of the carrier lifts and transports the crop while being supported from below at the forward position of the endless revolving body. .

[0008] In this configuration, the crop can be gently transported while being supported from below by the flexible support portion of the transport body formed of the plate-like elastic member, and therefore, regardless of the size of the crop. Therefore, the crops can be properly transported without carelessly damaging the crops.

According to a second aspect of the present invention, in the transport apparatus of the first aspect, the projecting amount reducing means for reducing the projecting amount of the transport body from the endless revolving body at the homeward position of the endless revolving body. It is what you have.

In this configuration, the amount of protrusion of the transporting body can be reduced at the return-side position of the endless revolving body by the projecting amount reducing means. Can be prevented from inadvertently interfering.

According to a third aspect of the present invention, in the transport apparatus according to the first or second aspect, the transport body is located at a central portion in a moving direction of the endless reciprocating body during the movement from the return side position to the forward side position. Is in a substantially flat state, and a scooping opening having a substantially triangular shape in a plan view is formed.

[0012] In this configuration, the agricultural product is once positioned in the scooping opening having a substantially triangular shape in a plan view formed by the support portion on the central portion side of the transport body being substantially flat. The crops can be reliably scooped up by the body support.

According to a fourth aspect of the present invention, there is provided an agricultural work machine for performing a predetermined operation on a crop on a reference surface while moving on a moving surface, wherein the agricultural work machine is provided on the support means, A holding means having a contact portion that contacts the reference surface and moving up and down based on a force acting on the contact portion from the reference surface, and a predetermined portion of the crop grown on the reference surface provided on the holding device. A cutting device for cutting, and the transport device according to any one of claims 1 to 3, which is provided on the support means or the holding means, and transports the crops cut by the cutting device to a predetermined position. Is what it is.

In this configuration, the height of the cutting device provided on the holding means with respect to the reference surface such as the upper surface of the ridge can be kept constant. Can be appropriately cut, and the crops cut by the transfer device can be appropriately transferred.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the agricultural working machine according to the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a self-propelled harvester as an agricultural working machine. This harvester 1 is arranged, for example, on a ridge bottom 2 as a moving surface in a field. While moving along, the crop W grown on the ridge upper surface 3 as a reference surface is harvested.

That is, the body 1a of the harvester 1
The moving direction X on the ridge groove bottom surface 2 while straddling the ridges 5 and 5
A predetermined portion of the crop W such as vegetables grown on the ridge upper surface 3 (for example, a lower end portion of a head portion as a main body portion, a root portion, or the like) while moving toward the ridge upper surface 3, and a cutting portion 6 as a cutting device.
Then, the crop W is scooped and lifted and transported by the first transport unit 7 which is a transport unit as a transport device, and then horizontally transported by the second transport unit 8.

The crop W transported to the predetermined position is stored in a container 10 mounted on a container mounting table 9 of the harvester 1 by a manual operation of an operator.

The crop W to be harvested is, for example, a lettuce or the like having a head portion W2 which is a main body portion that is relatively firmly headed so as to be wrapped by the outer leaves W1. The ridges 5 are projected in a plurality of rows by raising the soil, and are covered with, for example, a film F. The ridge height, the ridge shape, and the like differ depending on the ridge forming device and the like.

The body 1a of the harvester 1 is provided with a supporting and traveling means 11 as a carriage, and the supporting and traveling means 11 is moved in parallel by rotating a height adjusting handle 12 as operating means. The main frame 15 as a support means capable of adjusting the height H from the ridge groove bottom surface 2 by means of vertical movement substantially parallel to the ridge groove bottom surface 2. ing.

The main frame 15 is provided with a working side frame 17 which is a swinging frame as a holding means integrally holding a working means 16 constituted by the cutting section 6 and the first transport section 7. 3 so as to be able to move up and down substantially in parallel with respect to 3 through a connecting means 18 having a parallel link mechanism. Together with the main frame 15, the height from the groove bottom 2 can be adjusted.

That is, the working frame 17 is provided on the main frame 15 so as to be movable up and down in parallel within a predetermined operation range, that is, to be swingable with, for example, a vertical component. 17 is the work means during work
Integral with the ridge upper surface 3 and based on the reaction force received from the ridge upper surface 3, relative to the main frame 15 so as to correspond to the unevenness of the ridge upper surface 3 and the ridge groove bottom 2. Move up and down. The working section 20 constituted by the working means 16 and the working side frame 17 floats with respect to the ridge upper surface 3 at the time of work and moves in the movement direction X while being in contact with the ridge upper surface 3.

Here, as shown in FIGS. 1 to 3, the support running means 11 is a wheel as a rotating body which moves while rotating on the ridge groove bottom surface 2 in contact with the ridge groove bottom surface 2. It has a pair of left and right front wheels 21, 21 and rear wheels 22, 22, respectively. Each front wheel 21 is a front wheel holder as a wheel holding body.
The front wheel holder 23 is rotatably attached to the lower ends of the front and rear wheels 23 via an axle 24. The upper ends of the front wheel holders 23 are connected to both longitudinal ends of a front wheel connection frame 25 which is elongated in the left-right horizontal direction. The distance between the front wheel holders 23 can be adjusted so as to correspond to the width of the ridge 5, the type of the ridge 5, and the like.

Each of the rear wheels 22 has an axle at the lower end of a rear wheel holder 26 which also serves as a chain case as a wheel holder.
The upper end portion of each rear wheel holder 26 is connected via a contact holder portion 29, 29 to both ends in the longitudinal direction of a rear wheel connecting frame 28 which is elongated in the horizontal direction. . The distance between the rear wheel holders 26 can be adjusted to correspond to the width of the ridge 5, the type of the ridge 5, and the like, similarly to the front wheel holder 23.

Each of the communication holder portions 29 is provided with a rear wheel connecting frame 28.
A rear wheel drive shaft 31 which is a drive shaft positioned in parallel with
The rear wheel drive shaft 31 is mounted on the transmission
It is connected to the engine 34 side, which is the first drive source, via 33 and the like. Then, when the rear wheel drive shaft 31 receives the power from the engine 34 and rotates, the chain (not shown) in the rear wheel holder 26 rotates, and the rear wheel 22 rotates. In addition,
The rotation direction of the rear wheel 22 can be switched by operating the forward / reverse lever 36, and the engine can be switched by operating the clutch lever 37.
The power of 34 can be transmitted to or cut off from the rear wheel 22 side.

On the other hand, the respective ends of the front wheel connecting frame 25 and the rear wheel connecting frame 28 are connected to each other by four connecting links 41 (parallel links), two connecting arms 42, 42 and the like via the communication holder 29. Are linked. A handle for height adjustment is provided on the handle mounting portion 43 of the rear wheel connecting frame 28.
The tip of a rod 45 that advances and retreats with respect to the cylindrical portion 44 by the rotation of the height adjusting handle 12 is connected to a rod connecting portion 46 of a rear wheel connecting frame 28. Further, the main frame 15 is integrally bridged between the front wheel connecting frame 25 and the rear wheel connecting frame 28.

Then, the operator operates the height adjustment handle 12.
When gripping and rotating the rod, as shown in FIG.
The rear wheel holder 26 and the rear connection links 41, 41 rotate about the rear wheel drive shaft 31 in accordance with the advance and retreat of the front and rear wheels 45, and the front wheel holder 23 and the front connection links 41, 41 are connected to the front wheel connection frame 25. Around the center.

As a result, as shown in FIG. 5, the main frame 15 moves up and down substantially in parallel with the ridge groove bottom surface 2, and the height H of the main frame 15 from the ridge groove bottom surface 2 changes. In this way, by operating the height adjusting handle 12 to adjust the rotation of the front wheel holder 23, the rear wheel holder 26 and the like according to the ridge height of the field, etc., the height from the ridge groove bottom surface 2 of the main frame 15 is adjusted. H
Can be adjusted.

Next, as shown in FIG. 1, FIG. 2 or FIG. 6, an arm connecting portion 51 is formed on the main frame 15, and two parallel right and left attached to this arm connecting portion 51 are formed. Each of the horizontal support shafts 52, 52 has a total of four
Lower ends, which are one ends of a pair of left and right rotating arms 53, are rotatably connected. Further, the upper end, which is the other end of each rotating arm 53, is rotatably connected to an arm connecting support shaft 54 provided on the working frame 17. Note that a parallel link mechanism of the connecting means 18 is constituted by each rotating arm 53.

The work side frame 17 moves up and down relative to the main frame 15 in accordance with the rotation of each rotation arm 53. The up and down movement of the work side frame 17 is caused by a stopper (not shown) or the like. Due to the presence of the movement restricting portion, the position is within a predetermined operation range in which a predetermined upper limit position is set as an upper limit and a predetermined lower limit position is set as a lower limit. A fixing means (not shown) for fixing the work side frame 17 to the main frame 15 in a state where the work side frame 17 is located at a predetermined upper limit position is provided.

Further, as shown in FIG. 6, a display hand which rotates integrally with the rotation arm 53 is provided on the rotation arm 53.
The indicator 57a of the indicator hand 57
Displays the position of the working frame 17 within the operation range on the curved display plate 56 having a circular arc cross section.

The display plate 56 is formed integrally with the arc-shaped peripheral portion of, for example, a substantially fan-shaped mounting plate 55 fixed to the main frame 15 along the peripheral portion. On the display board 56,
A slit-shaped insertion hole (not shown) through which the arm portion 57b of the display needle 57 is inserted is formed, and the pointing portion 57a on the distal end side of the arm portion 57b moves along the longitudinal direction of the insertion hole. Further, the display plate 56 has a display unit (not shown) composed of characters such as “lower limit position”, “center position”, and “upper limit position” and scales, so that the operator can see the main frame 15 at a glance. The position of the working-side frame 17 with respect to is easily grasped. The display means 58 is constituted by the mounting plate 55, the display plate 56, the display needle 57, and the like.

As shown in FIG. 1, between the main frame 15 and the working frame 17, a working frame is provided.
17, that is, a coil spring 60, which is a tension spring, is provided as urging means for urging the working unit 20 in the upward lifting direction. That is, in the tensioned state, the coil spring 60 has an upper end serving as one end connected to the spring connection 60a of the main frame 15 and a lower end serving as the other end connected to the spring connection 60b of the working side frame 17. It is connected to. The coil spring 60 slightly expands and contracts in accordance with the vertical movement of the working frame 17 with respect to the main frame 15, and the magnitude of the urging force of the coil spring 60 is slightly increased in accordance with the vertical movement of the working frame 17. To increase or decrease. The connecting means 18 is constituted by the rotating arm 53, the coil spring 60, and the like.

On the other hand, as shown in FIGS. 1 to 3, the working side frame 17 has a grounding body 61 as a contact portion which is located at the lower front end of the harvester 1 and contacts the ridge upper surface 3. . The grounding body 61 is composed of, for example, grounding disks 62, 62 as rotating plates such as a pair of left and right rotating disks that are driven and rotated about a vertical rotation center axis.

Each of the grounding disks 62 receives the power from a motor 64a as a second driving source connected to, for example, a battery or the like, so that the inside on the opposite surface side is in the same direction (the rear direction in the anti-movement direction X). ) So that it is driven and rotated in a predetermined direction. In addition, each grounding disc 62
At a position in front of the cutting portion 6 of the working means 16, in a state of being separated from and facing to the lower side of the head portion W 2 of the crop W by a predetermined distance in a state parallel to the ridge upper surface 3 to be contacted (see FIG. For example, they are arranged horizontally on the ground. Further, as is apparent from FIG. 2, the outer side of each grounding disk 62 projects laterally from the widthwise end of the upper surface 3 of the ridge.

As shown in FIG. 1, the working side frame 17 has a cutter mounting portion 65 at the lower end, and a cutter 66 as a cutting blade constituting the cutting portion 6 is provided at the cutter mounting portion 65. The cutter 66 is mounted so as to be located at substantially the same height as the grounding disc 62, and the cutter 66 is configured to be capable of vibrating in a predetermined direction such as front and rear or left and right.
The cutter 66 has, for example, a front-low-back-high inclination, and is disposed near a position below the transport start end of the first transport unit 7.

The cutter 66 vibrates in response to the power from the motor 64b, which is a third drive source, to cut a predetermined portion of the crop W, for example, the lower end of the ball head W2, and to move the crop W to the first position. To the transport start end of the transport unit 7.

Further, as shown in FIG. 1, the working side frame 17 has a transfer section mounting section 71. The transfer section mounting section 71 picks up the crop W after the cutting process and diagonally raises the crop W upward. A first transport unit 7 as a transport device for lifting and transporting is mounted.

As shown in FIGS. 1 to 3, the first transport section 7 is, for example, a flat belt wound around a pair of end rollers 72, 72 having an axial direction in the horizontal direction.
A flat belt conveyor 74, which is a first conveyor as a loading and conveying means, which is constituted by a member 73 and the like and is arranged in an inclined manner gradually inclined upward from the conveyance start end side to the conveyance end side.
The scooping device is constituted by a wavy belt 75 or the like positioned along the flat belt conveyor 74, and is arranged in an inclined shape gradually inclined upward from the transport start end toward the transport end. A wavy belt conveyor 76 (wave belt conveyor), which is a second conveyor serving as a holding / conveying means also serving as a means, is provided.

The corrugated belt conveyor 76 is shown in FIGS.
As shown in the figure, a plurality of rotating bodies whose axial directions coincide with a direction orthogonal to a plane including the transport surface 74a of the flat belt conveyor 74.
There are 91 on each side. The rotating body 91 includes a driving sprocket, a driven sprocket, a guide sprocket, and the like. An endless revolving body 92 such as a chain or a belt is wound around the left and right rotating bodies 91 such that the opposing surfaces move diagonally rearward and upward in the same direction. . The traveling speed of the endless revolving body 92 is set to a value larger than the moving speed of the body 1a by the support traveling means 11, for example, a value twice as large.

Each of the left and right endless revolving bodies 92 has a plurality of sets, for example, six sets of mounting portions 93 for mounting the transporting bodies, which are arranged side by side in the reciprocating direction. Then, an elastically deformable plate-shaped carrier 95 is attached to the mounting portion 93 of each set,
Each transport body 95 is provided integrally with the endless revolving body 92 so as to protrude toward the outside of the endless revolving body 92 with a space 96 between the endless revolving body 92 and the endless revolving body 92. It moves according to the line, that is, the rotation of the endless revolving body 92.

It should be noted that a plurality of endless revolving bodies 92 on one side, which are attached to the left endless revolving body 92 so as to be located in
For example, six transport bodies 95 and a plurality of, for example, six transport bodies 95 attached to the right endless revolving body 92 on the other side so as to be arranged side by side in the circulating direction are arranged substantially in phase. At the forward position of the endless revolving body 92, the endless revolving bodies 92 are positioned at substantially the same height and face each other.

Here, the carrier 95 is an elongated rectangular plate-shaped elastic member 101 integrally formed of, for example, a synthetic resin such as polyurethane, polyester, or vinyl chloride, or synthetic rubber. And the like. The surface of the carrier 95, that is, the elastic member 101 is formed with a smooth surface 102 so as not to damage the crop W. The length of the elastic member 101 in the longitudinal direction is
The dimension is set to be larger than one half of the circumference of a circle whose diameter is the distance between one set of mounting portions 93.

Then, both ends in the longitudinal direction, which is the moving direction of the elongated rectangular plate-shaped carrier 95, are attached to the mounting portion 93 of the endless revolving body 92 via, for example, metal rotating connectors 104. The transport body 95 is rotatably connected, and is attached to the endless revolving body 92 in a slack state. Note that, as shown in FIG. 9, the rotationally connected body 104 includes a main body 105 and the main body 105.
The main body 1 has a fixing plate 106 protruding from the front end of the main body 1.
05 is connected to the mounting portion 93 so as to be rotatable around the support shaft 107. Further, both ends in the longitudinal direction of the carrier 95 are fixed to the fixing plate portion 106 with a fixture 108 or the like.
And the fixing plate 106 are in a laminated state.

A flexible support, which is a slack support portion for lifting and transporting the crop W while supporting it from below, at a position on the outward path side of the endless revolving body 92 at the longitudinal central portion of the transport body 95. A portion 111 is formed. That is, as shown in FIG. 7, each support 11
Numeral 1 is configured to be lifted and conveyed while being supported by the endless revolving body 92 at a position on the forward path side of the endless revolving body 92 while being supported from below the left and right sides, by being slightly pushed downward by the crop W. The opposing support portions 111 are freely deformable according to the size of the crop W, and support the crop W in a contact state in contact with each other, or support the crop W in a non-contact state. I do.

The support portion 111 of the carrier 95 is configured to be able to scoop up the crop W from the cutter 66, that is, to receive the crop W when the endless revolving body 92 moves from the homeward position to the forward position. ing.

That is, as shown in FIG. 8, the support portions 111 of the transport body 95 in the facing state are substantially c at both sides during the movement of the endless revolving body 92 from the return side position to the forward side position. It becomes a substantially flat state so as to form a letter shape, and a substantially central portion in the longitudinal direction of the transport body 95 is a folded portion 92a on the lower side of the endless revolving body 92
, And as a result, a substantially triangular scooping opening 112 is formed in plan view.

Immediately thereafter, each support portion 111 is provided with an endless revolving body 92.
Move instantaneously toward the direction approaching each other (the direction A in the drawing), that is, into the scooping opening 112, whereby the crop W located in the scooping opening 112 It is nipped and scooped up from both sides by the support portion 111.

The two-dot chain line in FIG. 8 is the movement locus of the lower end of the carrier 95, and the one-dot chain line in FIG. It is a movement locus of a lower end portion of a cantilever type transporting body made of a plate-like elastic member attached to the body 92 and having the other end as a free end. As is apparent from a comparison between the two movement trajectories, the carrier 95 moves at a position closer to the endless circling body 92 side than the one-dot chain line in FIG. The height position is set lower than in the case of the configuration of the dashed line in FIG.

On the other hand, in FIGS.
Is a guide plate as means for reducing the amount of protrusion.
Is the endless revolving body of the carrier 95 at the homeward position of the endless revolving body 92.
It is to reduce the amount of protrusion from 92.

The guide plate 115 is formed in the shape of an elongated rectangular plate having a longitudinal direction in the circling direction of the endless revolving body 92, and is endlessly provided at a side position opposite to the facing surface of the endless revolving body 92. Progenitor
It is arranged with a passage portion 116 which is a predetermined gap between the passage portion and the passage 92.

Then, the carrier 95 is, as shown in FIG.
When the endless revolving body 92 moves from the outward position to the return side position, the endless revolving body 92 enters the passage 116 between the endless revolving body 92 and the guide plate 115 from the entrance 116a, comes into contact with the guide plate 115, and It is pressed by the guide plate 115. As a result, the rotating connecting bodies 104 on both ends of the carrier 95 rotate around the support shaft 107 of the mounting portion 93, so that the carrier 95 is in a folded state and protrudes from the endless revolving body 92. The amount is smaller. The carrier 95 moves to the outlet 116b through the passage 116 while being held in the folded state by the guide plate 115.

On the other hand, as shown in FIG. 9, when the endless revolving body 92 is moved from the homeward position to the forward side position, the transport body 95 is moved to the lower end, which is one end of the endless revolving body 92. The folded state is released by the action of the provided guide portion 121, and the amount of protrusion from the endless revolving body 92 increases.

The guide portion 121 is connected to the main body 10
A lower surface portion has a substantially semicircular curved guide surface 122 for rotating the rotationally connected body 104 in contact with the guide member 122. This guide surface 1
22 is formed so as to gradually approach the arc-shaped outer peripheral surface 123 of the folded portion 92a of the endless revolving body 92 from the guide start end side toward the guide end side, and the guide end side of the guide surface 122 is endless. It substantially matches the outer peripheral surface 123 of the circulating body 92 in plan view. That is, the distance L of the guide surface 122 from the rotation center axis Y of the rotating body 91 gradually increases from the guide start end 124 to the guide end 125.

Then, at the homeward position of the endless revolving body 92, the main body 105 of the rotary connector 104 on the front side in the moving direction of the carrier 95 moves in a standing posture, and the main body 105 of the rotary connector 104 moves. When the base end of the rotary contact 104 abuts on the guide start end 124 of the guide surface 122, as shown in FIG. Rotate.

Thereafter, the main body 105 of the rotary connecting body 104 further rotates in the direction of the arrow, gradually changing from the standing posture to the falling posture, and as a result, the exit 116 of the guide plate 115
The transport member 95 away from b is gradually released from the folded state without largely projecting outward, and the amount of projection of the transport member 95 from the endless revolving body 92 gradually increases.

The rotating connection body 104 is completely inclined at the position of the guide end portion 125 of the guide surface 122 (about 9 degrees from the standing posture).
9A, and after the line A in FIG. 9, the endless revolving body 92 moves obliquely upward in the forward path position while maintaining the inclined posture. In addition, the rotary connector 104 on the rear side in the moving direction of the transport body 95 is configured to rotate in conjunction with the rotary connector 104 on the front side in the moving direction.

Then, the crop W is picked up by the flexible support portion 111 of the carrier 95 which has swelled from the endless revolving body 92 due to the release of the folded state.
The crop W is lifted and conveyed to a predetermined height position while being supported by the support portion 111 of No. 5 and the flat belt 73 of the flat belt conveyor 74. It should be noted that the endless revolving body 92, the transport body 95, the rotating connecting body 104, and the like constitute a wavy belt 75.

As shown in FIGS. 1 and 2,
A second transport unit 8 that receives the crop W from the first transport unit 7 and transports the crop W horizontally and rearward is mounted on the transport unit mounting unit 81 of the main frame 15.

The second transport section 8 has, for example, a pair of left and right conveyor frames 82, 82,
A pair of end rollers 83, 83 are bridged between the rollers 82, and a flat belt 84 is wound between the two end rollers 83.
In addition, the flat belt 73 and the wavy belt of the first transport unit 7
Both the belt 75 and the flat belt 84 of the second transport unit 8 are driven and rotated by receiving power from the engine 34, for example. Along with the forward / reverse lever 36 and the clutch lever 37,
A pair of left and right handles 38, 38 are arranged.

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

When harvesting agricultural crops W such as lettuce grown in the field, the worker attaches the working side frame 17 (working portion 20) by fixing means (not shown) as shown by a two-dot chain line in FIG. The harvester 1 is carried into the field with the working unit 20 suspended from the main frame 15 while being locked at the predetermined upper limit position.

Thereafter, the worker releases the lock by the fixing means, and as shown by the solid line in FIG.
61 is grounded on the ridge upper surface 3. Subsequently, the operator looks at the display plate 56 of the display means 58 and operates the height adjustment handle 12 as necessary to adjust the height H of the main frame 15 from the ridge bottom surface 2. .

That is, for example, the height of the ridge 5 (the ridge upper surface 3
Distance between the ridge and the groove bottom 2) is relatively high,
When the upper frame 17 is located near the upper limit position in the operation range, the height H of the main frame 15 from the ridge groove bottom surface 2 is adjusted to be larger, and the working frame 17 is moved to the center position ( (A position raised or lowered by half the allowable amount from the upper limit position or the lower limit position).

When the height of the ridge 5 is relatively low and the working side frame 17 is located near the lower limit position in the operation range, the height H of the main frame 15 from the ridge groove bottom surface 2 becomes small. The working side frame 17 is positioned at the center position within the operating range.

After adjusting the height H of the main frame 15, the operator operates the forward / reverse lever 36, the clutch lever 37, etc., so that the harvester 1 is straddled on the ridge 5 while the harvester 1 is straddling the ridge 5. 2 in the movement direction X.

The movement in the movement direction X causes the ridge upper surface 3
The cutter 66 enters the lower end of the head W2 of the crop W above, and the cutter 66 cuts the lower end of the head W2.

The crop W is picked up from the ridge upper surface 3 by the first transfer section 7 having the flat belt conveyor 74 and the corrugated belt conveyor 76 at almost the same time as or after the cutting, and lifted and transferred. After that, the second transport unit 8
Is transported horizontally.

Here, for example, even if the unevenness of the ridge upper surface 3 is relatively large, the working unit 20 constituted by the cutter 66, the first transport unit 7 and the like acts on the ridge upper surface 3 and the ground contact body 61. Based on the increase or decrease of the force, the main frame
It moves up and down by the parallel movement to 15.

As a result, the height position of the working section 20 with respect to the ridge upper surface 3 of the cutter 66 or the transfer start end of the first transfer section 7 is kept constant, so that the cutter 66 holds the crop W at a predetermined position. The first transport unit 7 reliably receives and transports the crop W after the cutting process. In addition, the crop W moves to the side of the worker by the transport of the second transport unit 8. The worker manually stores the moved agricultural crop W in the container 10 on the container mounting table 9.

On the other hand, the first conveyor 7 having the flat belt conveyor 74 and the corrugated belt conveyor 76
Crops W located in the scooping opening 112 on the ridge upper surface 3
Is scooped up and then lifted and conveyed. At this time, as shown by the solid line in FIG.
It is lifted and conveyed while being supported from below the left and right sides substantially at the center of the flexible support portion 111. Note that the flexible supporting portion 111 is appropriately deformed according to the size of the crop W or the like. That is, after the crop W is scooped, the crop W
Starts sliding on the smooth surface 102 of the support portion 111 according to its own weight, and is stopped by being held by the support portion 111 at a predetermined position corresponding to the size of the crop W. In this manner, the crop W is gently transported by the flexible support portion 111 without being affected by the size of the crop W.

Due to the shape, size, etc. of the crop W, or the timing of the crop W being positioned in the scooping opening 112, the crop W is supported by the support section as shown by the two-dot chain line in FIG.
There is also a case where the sheet is lifted and transported while being supported by the lower left and right sides on the substantially upper portion of the upper portion 111 and assisted by the lower portion of the upper support portion 111 which is downstream in the circulating direction.

As described above, according to the above embodiment, the main frame 15 is moved by operating the height adjusting handle 12 in accordance with the condition of the field such as the height of the ridge 5. By adjusting the height H of the main frame 15 from the ridge groove bottom surface 2 by moving it up and down substantially in parallel with respect to the above, the working side holding the working means 16 while maintaining the posture of the working means 16 constant. The frame 17 can be positioned at the center position within the operation range by the parallel movement.

For this reason, the working range of the working side frame 17 can be appropriately secured, and even if the unevenness of the ridge upper surface 3 and the like is relatively large, the cutting section 6 and the first transporting section 7 held by the working side frame 17 can be used. The height position of the working means 16 configured as described above with respect to the ridge upper surface 3 can be kept constant.

Therefore, since it is possible to reliably cope with various heights of the ridges 5 and to reliably cope with unevenness of the ridge upper surface 3, it is possible to cut the predetermined portion of the crop W at the cutting section 6 without being affected by the field conditions. The first transport unit 7 which can be appropriately cut and
Thus, the crop W after the cutting process can be appropriately lifted and conveyed, so that the crop W can be appropriately harvested. In addition, the main frame 15 is configured to be adjustable in height H from the ridge groove bottom surface 2 by parallel movement, and the working side frame 17 is configured to be movable in parallel up and down relatively with respect to the main frame 15. Working means 16 held by side frame 17
Can be maintained constant, and the operation by the operation means 16 can be performed stably and reliably.

Further, the urging force of the coil spring 60 in the lifting direction can be kept constant to a certain extent, and it is possible to prevent the urging force of the coil spring 60 from greatly changing according to the unevenness of the ridge upper surface 3 and the like. W can perform more appropriate work.

Further, by using the display means 58 for displaying the position of the work side frame 17 in the operation range, the adjustment work can be performed very easily.

Further, since the grounding body 61 of the working side frame 17 is composed of two rotatable grounding disks 62 disposed horizontally above the ground at a position in front of the cutter 66 of the cutting section 6, the working side frame 17 is provided. Since the buoyancy of the work 17 can be appropriately obtained by the ground disk 62, it is possible to prevent the ground body 61 of the work side frame 17 from entering the ridge upper surface 3, and the height of the work means 16 with respect to the ridge groove bottom 2. The position can be reliably maintained at a constant level, and a more appropriate harvesting operation can be performed. In addition, each ground disk 62
Is rotated so that the inner side, which is in contact with the ridge upper surface 3, moves backward, so that no excessive load is applied to the grounding disk 62 from the ridge upper surface 3 and the harvester 1 moves in the moving direction X. It does not adversely affect the movement.

On the other hand, in consideration of the condition of the field such as the height of the ridges 5, the operating range of the working frame 17 is increased in advance so that the operating range of the working frame 17 has a sufficient margin. The structure can be simplified compared to
Maintenance can be facilitated and manufacturing costs can be reduced.

Further, in the corrugated belt conveyor 76 of the first conveying section 7, the crop W can be gently conveyed with the flexible supporting section 111 of the conveying body 95 sandwiching the crop W from below the left and right sides. Regardless of the size of the crop, the crop W can be properly transported without carelessly damaging the crop W.

Further, the crop W can be gently and reliably scooped up from the ridge upper surface 3 by the support portion 111 of the carrier 95. For example, a separate scooping tool is not required and the structure can be simplified.

Further, the amount of protrusion of the transport body 95 can be reduced at the return path position of the endless reciprocating body 92 by the guide plate 115. Therefore, the transport body 95 and the crop W can be reduced at the return path position of the endless reciprocation body 92. Can be prevented from inadvertently interfering with each other, and damage to the crop W on the lateral ridges 5 can be appropriately avoided.

The reciprocating speeds of the flat belt 73 and the wavy belt 75 of the first transport section 7 are determined by the front and rear wheels 21, 22.
Value greater than the moving speed of the body 1a due to the rotation of the
Multiple), a plurality of lines arranged in the circulating direction, for example, 6
It is configured to be intermittently transported by one transport body 95, that is, transported by, for example, every other transport body 95. For example, based on a change in the distance between the agricultural products W adjacent in the longitudinal direction of the ridge 5, for example, When the arrival timing of the crop W to the carrier 95, that is, when the timing at which the crop W is positioned in the scooping opening 112 is shifted, even if the scooping conveyance by one carrier 95 fails, the rotation is not performed. The next crop 95 adjacent to the upstream side in the row direction can appropriately scoop and transport the failed crop W.

A configuration in which only one end of the wavy belt conveyor 76 in the moving direction of the conveyor 95 is attached to the endless revolving body 92 and the other end is a free end may be considered. With the configuration in which both ends in the moving direction are slackened toward the center in the longitudinal direction and attached to the endless revolving body 92, the crop W can be easily transported by the flexible support portion 111 of the transport body 95. is there.

In the above embodiment, the agricultural working machine
Although the self-propelled harvester 1 has been described, it may be configured to be towed by a traveling vehicle such as a tractor.

In each of the above embodiments, the moving surface is the ridge bottom surface 2 and the reference surface is the ridge top surface 3 located above the ridge bottom surface 2. And the height and the positional relationship between the moving surface and the reference surface are also arbitrary.

Further, in any of the above-described embodiments, the working-side frame 17 is described as being configured to be swingably provided on the main frame 15 via the connecting means 18 including the rotating arm 53 or the like which is a parallel link. However, for example, a configuration in which the working side frame is provided so as to be movable up and down in parallel with the main frame via a connecting means such as a pantograph, or a configuration in which the working side frame is slidably provided so as to move in parallel to the main frame. You can also.

Further, instead of providing a plurality of drive sources such as the engine 34 as the first drive source, the motor 64a as the second drive source, and the motor 64b as the third drive source, only one of them is provided. Alternatively, a single drive type configuration may be employed.

Further, the corrugated belt conveyor 76 is not provided with both the left and right endless revolving bodies 92, but with the left and right endless revolving bodies 92.
A configuration in which the carrier 95 is protruded from only one of them may be used.

Further, a separate cantilevered auxiliary elastic plate is provided in a space 96 between the transport body 95 and the endless revolving body 92, and the support portion 111 of the transport body 95 is not supported by the auxiliary elastic plate. It may not be too loose in preparation.

Although the transport body 95 has been described as being connected to the endless revolving body 92 via the rotatable connecting body 104 or the like, for example, although not shown, an endless revolving body such as a flexible belt is used. It may be directly connected to the row 92.

Further, in any of the above embodiments, the urging means for urging the holding means such as the work side frame 17 which moves up and down substantially in parallel with the reference plane in the lifting direction is a coil spring 60 such as a tension spring. However, for example, although not shown, a configuration using a cylinder type fluid spring or the like may be employed.

Further, in any of the above-described embodiments, the agricultural work machine such as the harvester 1 includes a cutting section 6 for cutting a predetermined portion of the crop W grown on a reference surface such as the ridge upper surface 3 and the cutting section 6. From the first transporting unit 7 which receives the crop W as if it were picked up from the container and transports it to a predetermined position, is held by holding means such as a working side frame 17 which moves up and down substantially in parallel with the reference plane. The configuration has been described.

However, for example, like a farming machine such as a harvesting machine shown in FIG. 10, a cutting unit 6 such as a cutter 66 for cutting a predetermined portion of a crop W grown on a reference surface such as the ridge upper surface 3 is constituted. The first conveying means for holding the cut working means 16a by holding means such as the working side frame 17 which moves up and down substantially in parallel with the reference plane by the action of the contact portion, and receives and conveys the crop W after the cutting processing. The portion 7 may be supported by supporting means such as the main frame 15 whose height can be adjusted substantially parallel to the moving surface.

Then, even in the agricultural working machine shown in FIG.
As in the agricultural work machine 1 shown in FIG. 1 and the like, since it is possible to reliably cope with various heights of the ridges 5 and to reliably cope with unevenness of the ridge upper surface 3, the cutting section 6 is not affected by the field conditions and is not affected. It is possible to obtain an operational effect such that a predetermined portion of the crop W can be appropriately cut.

The main frame 15 of the agricultural work machine shown in FIG. 10 is provided with a support shaft 191 for connecting the arms, and the support shaft 191 has a pair of left and right rotating arms 53a having the same length in all four lengths. , 53b are connected rotatably at the upper ends thereof. Further, the lower ends, which are the other ends of the rotating arms 53a and 53b, are rotatably connected to an arm connecting support shaft 192 provided on the working frame 17. A spring connecting portion 60b is integrally provided to project upward from the upper end of the rotating arm 53a on the rear side in the moving direction X, and one end of a coil spring 60 as an urging means is provided at the tip of the spring connecting portion 60b. Are connected. The other end of the coil spring 60 is connected to a spring connecting portion 60a on the main frame 15 side. Note that the rotating arms 53a,
The connection means 18a is constituted by 53b, the coil spring 60 and the like. A parallel link mechanism of the connecting means 18a is constituted by each of the rotating arms 53a and 53b.

Then, in a state where the grounding member 61 of the working side frame 17 is in contact with the ridge upper surface 3, the rotating arms 53a and 53b are rotated based on the increase and decrease of the force acting on the grounding member 61 from the ridge upper surface 3. At the same time, the coil spring 60 expands and contracts slightly, so that the working side frame 17a holding the working means 16a including the cutting portion 6 such as the cutter 66 can move the main frame 15 while maintaining the cutting portion 6 in the predetermined inclined state. Moves up and down by parallel movement relative to. Other configurations are the same as those of the agricultural working machine shown in FIG.

In any of the embodiments, the support means is not limited to the main frame 15 or the like whose height can be adjusted substantially parallel to the moving surface, and may have a configuration in which the height cannot be adjusted.

[0099]

According to the first aspect of the present invention, the crop can be easily transported while being supported from below by the flexible supporting portion of the transport body formed of the plate-like elastic member. Regardless of the size, the crop can be properly transported without inadvertently damaging the crop.

According to the second aspect of the present invention, the amount of protrusion of the transport body can be reduced at the return-side position of the endless revolving body by the protrusion amount reducing means. Inadvertent interference between the carrier and the crop can be prevented.

According to the third aspect of the present invention, the crop is once positioned in the substantially triangular-shaped scooping opening formed in plan view when the support at the center of the carrier is substantially flat. Thereby, the crops can be reliably scooped up at the support portion of the carrier.

According to the fourth aspect of the present invention, the height of the cutting device provided on the holding means with respect to the reference surface such as the upper surface of the ridge can be kept constant. A predetermined portion of the crop can be appropriately cut, and the cut crop can be appropriately transported by the transport device.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of an agricultural working machine according to the present invention.

FIG. 2 is a plan view of the agricultural working machine.

FIG. 3 is a front view of the agricultural working machine.

FIG. 4 is a side view of the supporting and traveling means of the agricultural working machine.

FIG. 5 is a side view of the supporting and traveling means of the agricultural working machine.

FIG. 6 is a side view showing a connecting means for connecting the main frame and the working side frame of the agricultural working machine.

FIG. 7 is a plan view of a transport device of the agricultural work machine.

FIG. 8 is a plan view of a transfer start end of the transfer device.

FIG. 9 is a plan view of a guide section of the conveyance device.

FIG. 10 is a side view showing another embodiment of the agricultural working machine of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Harvester as an agricultural work machine 6 Cutting part as a cutting device 7 First conveyance part as a conveyance device 15 Main frame as a support means 17 Working side frame as a holding means 92 Endless revolving body 95 Transport body 101 Elastic member 111 Support part 115 Guide plate as means for reducing protrusion

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Atsushi Nakazawa 5155, Shiokawa, Oji, Maruko-cho, Nagano Prefecture, Japan Inside (72) Inventor Shinichi Toyama 5155, Shiokawa, Ojiro, Maruko-cho, Nagano Pref. Matsuyama Co., Ltd. Within the National Institute for Technology Promotion (72) Inventor Hideo Kainuma 1-40-40 Nisshincho, Omiya City, Saitama Prefecture Within the National Institute for Biological Science and Technology (72) Inventor Tsukasa Nagaki 1-140 Nisshincho, Omiya City, Saitama Prefecture 2 Within the Organization for Promoting Specified Industrial Technology Research (72) Inventor Takashi Iwakawa 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Plant (72) Inventor Hiroyuki Chiba Osaka 64 Ishizukita-cho, Sakai-shi, F-term in Kubota Sakai Works Co., Ltd. (reference) 2B075 GA01 GA06

Claims (4)

[Claims] 1. An endless revolving body which is provided so as to be revolvable while facing each other, and makes a pair so that the opposing surfaces move in the same direction, and at least one of the endless revolving bodies. A carrier that is provided so as to protrude outwardly of the endless revolving body and moves in accordance with the revolving of the endless revolving body; and the carrier is a plate-like elastic member. Both ends of the carrier are attached to the endless revolving body,
In addition, the central portion of the transport body is a flexible support portion, and the support portion of the transport body lifts and transports the crop while being supported from below at the forward position of the endless revolving body. Transport device. 2. The transport apparatus according to claim 1, further comprising a protrusion amount reducing unit configured to reduce a protrusion amount of the transport body from the endless revolving body at a position on the return path side of the endless revolving body. . 3. The scooping device according to claim 1, wherein the end of the endless revolving body is moved from the return path position to the forward path position, and the support portion at the center in the moving direction is in a substantially flat state. 3. The transport device according to claim 1, wherein an opening is formed. 4. An agricultural working machine for performing a predetermined operation on a crop on a reference surface while moving on a moving surface, comprising: a support means; and a contact provided on the support means and in contact with the reference surface. A holding unit having a portion and moving up and down based on a force acting on the contact portion from the reference surface; a cutting device provided in the holding device, for cutting a predetermined portion of the crop grown on the reference surface; 2. A crop provided on a supporting means or the holding means and transporting the crops cut by the cutting device to a predetermined position.
An agricultural work machine comprising the transport device according to claim 3.