JP2008054624A - Crop harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crop harvester which stabilizes the position and posture of a container on a container-receiving base to facilitate required delivery transfer of the container on the container-receiving base. <P>SOLUTION: This crop harvester having a harvest portion 10 on lateral one side of a travel machine frame, provided with a container-receiving base 6 elongated along the longitudinal direction of the machine frame on the other side, and having a container transfer device 5 for receiving crops conveyed from the harvest portion 10 in a container C on the rear side of the harvest portion 10 and transferring the container C toward the container-receiving base 6, is provided with a return-restricting member 70 for permitting the transfer of the container C from the container transfer device 5 to the container-receiving base 6 and restricting the transfer of the container C in the reverse direction between the container transfer device 5 and the container-receiving base 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a crop harvester that handles root vegetables such as carrots, radishes, onions, and potatoes, or agricultural crops such as fruits and spherical vegetables in a state of being packed in a container for transportation.

As this kind of crop harvester, a harvesting part that pulls up the root vegetables in the field and processes leaf cutting is deployed on one side of the traveling aircraft, and a control unit is deployed on the other side of the traveling aircraft, and the rear part of the harvesting unit 2. Description of the Related Art Conventionally, it is known that a root vegetable main body discharged from a container is placed on a transport device and transported backward, and then stored in a container and collected.
In this crop harvesting machine, there is an empty container storage area between the harvesting part deployed on the side of the traveling machine and the control part on the other side, and a collection part for placing the container when packing the root vegetable body Is provided at the rear end of the aircraft.
Then, the auxiliary worker who is walking following from the rear of the fuselage transfers the full container to the deck that is placed in an overhanging state outside the fuselage on the side where the recovery unit is deployed, It is configured to mount many containers while shifting to (see Patent Document 1).

JP 2002-272233 A (paragraph numbers [0034], [0035], [0038] and FIGS. 1 and 2)

If the agricultural products are packed in a container and handled as described above, the separated agricultural products can be handled in units of containers, which is effective in improving the workability thereafter. However, in the conventional crop harvesting machine, there is no problem in moving the empty box of the container onto the container table provided in the recovery unit. However, after the crop is packed in the container, the weight of the container is greatly increased. Due to the increase, there is a problem that a large amount of labor is required for operations such as moving the container from the container stand to the side deck or moving it further on the deck.
In order to solve such a problem, for example, a roller that rotates around a horizontal axis in a direction orthogonal to the moving direction of the container is provided on the container table so that the container can be easily moved toward the deck side. In the above, it can be considered that the container fed from the container table side can be easily forcibly conveyed in one direction along the longitudinal direction of the deck.
By providing transport rollers as described above, it becomes possible to send a heavy full container from the container base to the side deck relatively easily, but on the other hand, rolling and vibration of the aircraft while traveling As a result, there is a possibility that the full container once sent out returns from the deck side to the container stand side, or the position of the full container on the deck side shifts or the posture is disturbed.

  An object of the present invention is to provide a crop harvesting machine that can stabilize the position and posture of a container on the container receiving table and facilitate the feeding and moving of the container on the container receiving table as expected. Is.

The crop harvester according to the present invention has structural features and operational effects at the following points.
[Solution 1]
The technical means of the present invention devised to achieve the above object includes a harvesting section for harvesting crops in a field on one side of the traveling machine body, along the other side part of the traveling machine body along the longitudinal direction of the machine body. A container container that is formed in a long and long manner, and a container transfer unit that accommodates a crop fed from the harvester in a container and transfers the container toward the container container on the rear side of the harvester In a crop harvester comprising an apparatus,
A return regulating member is provided between the container transfer device and the container storage table, which allows movement of the container from the container transfer device side to the container storage table side and inhibits movement of the container in the reverse direction. Has structural features.

[Function and effect]
According to the above configuration, the container that has been transferred from the container transfer device to the container receiving table is restricted from returning to the container table by the return regulating member. The possibility of shifting from the intended position of the container receiving table can be reduced.
Therefore, since the position and posture of the full container on the container receiving table side can be stably maintained, for example, when the container is forcibly moved from the upper side to the lower side, the position and posture of the container accompany the movement. There is an advantage that it is easy to avoid in advance the occurrence of a phenomenon that makes it difficult to move as expected, such as a greater change.

[Solution 2]
The second technical means of the present invention taken to achieve the above object is the one provided with the first technical means, wherein the return regulating member includes a container along the transport path on the container receiving table. It is characterized in that a regulating action part for guiding the sending movement is formed.

[Function and effect]
According to the above configuration, the return regulating member also serves as a movement guide for the container on the container receiving table side, and the function of regulating the position and posture of the container described above and the guide action at the time of feeding, synergizes the full container. There is an advantage that the feeding movement on the container receiving table side can be easily performed as expected.

[Solution 3]
The third technical means of the present invention taken to achieve the above object includes the first or second technical means, wherein the return regulating member is a boundary between the container transfer device and the container receiving table. The container is configured to be movable in and out of the movement path of the container, and in a free state, the restricting action portion of the return regulating member is oscillated and biased so as to project into the container movement path. As the container moves from the apparatus side to the container receiving table side, the restriction action portion is pushed down by the weight of the container and retracted from the movement path.

[Function and effect]
According to the above configuration, the change in the posture of the return regulating member is automatically switched between the movement permitting state and the position regulating state of the full container in accordance with the movement operation of the full container from the container transfer device side to the container receiving table side. Therefore, there is an advantage that a simple structure can be configured without requiring special posture switching control.

Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.
[Overall configuration of crop harvester]
1 to 4 illustrate a carrot harvester as an example of a crop harvester that harvests root vegetables.
This crop harvester comprises a pair of left and right crawler type traveling devices 1 below the body frame 3 to form a traveling body, a harvesting unit 10 on the left side of the traveling body, and a riding type driving unit 2 on the right side. And a crop recovery unit A for recovering the crops harvested by the harvesting unit 10 from the rear of the harvesting unit 10 toward the rear right side of the machine body where the boarding operation unit 2 is disposed. ing.
This crop harvester harvests ginseng a from the field and removes the roots and leaves as the machine runs, and is configured in detail as follows.

[Boarding type driving part]
The boarding type driving unit 2 is provided with a driving seat 2a so as to cover the upper side of the driving unit including the engine E mounted on the body frame 3, and includes a boarding step 2b below the driving seat 2a, and further at a front position. A control tower 2c provided with an operation tool or the like for steering operation is provided.

[Harvesting department]
The harvesting section 10 includes a pair of left and right weeding devices 11 that weed while causing the foliage of the crop, and a conveying device 14 that grips the root of the stem and foliage of the crop that has been raised from both the left and right sides and conveys it upward and backward. A soil unraveling blade 15 that is embedded in the soil and vibrates in the soil around the periphery of the crop (carrot body a), and a well-known method that cuts the root of the crop located below the starting end side of the conveying device 14. And a leaf portion removing device 20 that cuts and removes the stems and leaves of the crop delivered from the conveying device 14, and these are supported by a pair of left and right main frames 13a. ing.
The harvesting section 10 has a base end portion of the pair of left and right main frames 13a connected to the rear portion of the machine frame 3 of the traveling machine body so as to be rotatable around an axial core P facing the machine body. The main frame 13a is swung up and down with respect to the body frame 3 by a lift cylinder 13b having a piston connected to the base end side of the frame 13a, so that the entire harvesting section 10 can be moved up and down.
Reference numeral 12 in the figure denotes a grounding wheel provided at the tip of the pair of left and right main frames 13a, which is effective for maintaining the ground posture of the weeding device 11 and the transport device 14 at a predetermined ground height. Works.

  The pair of right and left weeding devices 11 scoop up the carrot leaf b vegetated in the field by the scoop arm 11c, and the leaf b from the scoop arm 11c protrudes forward from the weeding case 11a. By lifting up by the raising claw 11b that moves up the front side of the weeding case 11a, the ginseng leaf b to be harvested is separated from the ginseng leaf b to be harvested and is caused to ripen, The main frame 13a is connected to the front end side of the main frame 13a via a frame of the transfer device 14 with a front end portion connected and supported.

  The right and left soil unraveling blades 15 pierce the soil on the side of the carrot to be harvested, and loosen the soil so that the carrot body a can easily escape from the soil when the transport device 14 pulls out the carrot body a from the field. Go.

  The conveyance device 14 drives and rotates a pair of left and right endless conveyance belts 14a in a posture of a rear upward slope in which the conveyance start end portion is located near the rear side of the pulling device 11, and the conveyance end side is located at a higher level on the rear side of the machine The pair of endless conveyor belts 14a are provided and freely inherited and pinched from the weeding carrot leaf part b from the weeding device 11 and conveyed upward in the rearward direction of the machine body. As a result, the transport device 14 pulls out the carrot a to be harvested from the field by the pair of endless transport belts 14a, and continues to lift and transport the ginseng as it is in a suspended posture.

  The leaf removing device 20 includes a pair of left and right positioning endless chains 22 whose start ends are located near the rear side of a portion located on the transport start end side from the transport end position of the pair of endless transport belts 14a of the transport device 14. A pair of left and right cutting and conveying endless belts 27 where the conveying start end is located above the end side of the chain 22, a pair of left and right rotating blades 23 located near the middle of the pair of left and right cutting and conveying endless belts 27, Each of the leaf transport endless chains 24 positioned above the pair of cut transport endless belts 27 is configured to be capable of driving and rotating.

Then, as the conveying device 14 conveys the carrot having undergone hair root cutting, the vicinity of the head of the carrot body enters the lower side of the positioning endless chain 22, and thereafter, the endless conveying belt 14a of the conveying device 14 continues. When the transport end side lifts and transports the carrot, the carrot body is in a positioning state in which the top of the head contacts the positioning endless chain 22. The carrot leaf portion in this positioning state is cut and conveyed by the cutting and conveying endless belt 27 and the leaf portion conveying endless chain 24 from the conveying device 14, and is nipped and conveyed backward. Then, the vicinity of the carrot head in the leaf part of the transported carrot is supplied to the rotary blade 23 and cut, and the carrot body falls at this cutting position. Even after the cutting, the cutting and conveying endless belt 27 and the leaf portion conveying endless chain 24 are configured to convey the leaf portion further rearward and drop it onto the discharge chute 25.
Thereby, the leaf part removing device 20 cuts the carrot leaf part after the hair root has been removed by the rotary blade 23 near the head of the carrot body, and cuts and conveys the carrot body without the hair root and the leaf. The endless belt 27 is dropped onto the belt conveyor 40, and the cut leaves are dropped onto the field by the discharge chute 25 behind the machine body.

[Crop Collection Department]
The crop collection unit A includes a crop transport device 4 for changing the direction of the carrot body a as a crop harvested by the harvesting unit 10 and supplying it to the container transfer device, and the carrot body from the crop transport device 4. a container transfer device 5 for collecting and sending out a to the container C, a container receiving table 6 for storing the container C filled with crops on the machine, and an empty container C in the container transfer device 5 The auxiliary seat 9 is provided so that an auxiliary worker for performing a predetermined operation such as supplying the container C or taking out the container C filled with crops can perform the operation in a state of being seated on the seat. It consists of and.

The crop conveying device 4 receives the carrot falling from the leaf portion removing device 20 located at the rear end of the harvesting unit 10 and conveys it in the rear direction of the machine body, and above the end side of the belt conveyor 40. For selection processing of the carrot fed from the belt conveyor 40 and the feed roller 41 which is positioned so that it can be driven obliquely and changes the direction of the carrot on the belt conveyor 40 from the rear to the right side of the machine. It is comprised with the roller conveyor 48 which conveys body sideways.
As shown in FIGS. 4 and 5, the roller conveyor 48 includes a large number of rod-shaped rollers 48a arranged so as to be slightly higher toward the lower side in the feed direction (right lateral direction). It is a slat type sorting conveyor that is disposed and rotated, and is configured to drop waste carrots, garbage, soil, etc. while forcibly transporting.
On the upper side of the drive system of the roller conveyor 48, an electric motor that can drive and stop driving the roller conveyor 48, or the driving force from the engine can be intermittently operated with respect to the drive system of the roller conveyor 48. A drive interrupt mechanism 43 composed of a simple clutch is interposed.

[Container transfer device]
As shown in FIGS. 2 and 4, the container transfer device 5 includes a container base 50 for mounting the container C so as to collect the carrot body a from the roller conveyor 48 into the container C, and the container base. A container supply unit 55 for storing an empty container C supplied to the container 50, and a container take-out unit 56 (container for taking out and placing a full container C filled with crops in the container table 50) Part of the storage table 6 also serves as a storage base).
The upper side path C1 for supplying the empty container C to the container base 50 is a path from the front side of the machine body to the rear side, and is a lower side for taking out the full container C from the container base 50. The side path C2 is a path from the position of the container base 50 toward the right side of the machine body. That is, the upper-side radial path C1 and the lower-side path C2 are provided in a direction intersecting each other as shown in FIG. 5, and the container base 50 is located at the intersection.

  As shown in FIGS. 5 to 7, the container base 50 includes a guide body 51 that constitutes a reference height position as a mounting surface 50F for mounting the container C on the container base 50, and With respect to the mounting surface 50F having the reference height by the guide body 51, the container C is positioned from a position slightly lower than the mounting surface 50F to a position higher than the height of the mounting surface 50F having the reference height. It is possible to provide an elevating support base 52 capable of changing the attitude and hold the container C at a height position different from the mounting surface 50F having the reference height in accordance with the attitude change of the elevating support base 52. It is configured to be.

As shown in FIG. 4 to FIG. 6, the guide body 51 that sets the reference height position so as to constitute the mounting surface 50 </ b> F on the container base 50 takes out the full container C from the container base 50. It is composed of a large number of spherical guide rollers 51a pivotally supported around a horizontal axis X1 in a direction orthogonal to the lower side path C2.
Thus, when each guide roller 51a is formed in a spherical shape and pivotally supported around the horizontal axis X1 in a direction orthogonal to the lower path C2, the container C on the guide roller 51a is supported. When pulling out the container along the lower path C2, the container C, which is full of crops and increases in weight, can be pulled out easily by rotating the guide roller 51a around the horizontal axis X1. it can.
When the empty container C is moved onto the container base 50 along the upper-side path C1 from the container supply unit 55 on the front side of the machine body of the container base 50, the moving direction is along the horizontal axis X1. Therefore, the individual guide rollers 51a do not rotate around the horizontal axis X1. However, since the shape of each guide roller 51a is spherical, the guide surface 51f at the upper end of each guide roller 51a is a quadratic curved surface that curves upward.
For this reason, the bottom surface side of the container C is guided by the upwardly curved secondary curved surface, smoothly rides on the guide roller 51a, and moves while sliding.

As shown in FIG. 7, among the guide rollers 51a, the guide roller 51a corresponding to the upper side portion in the container transport direction is more horizontally oriented than the guide roller 51a located at the lower side portion thereof. A slight height difference 5h1 and 5h2 is provided so that the height position is high when.
Similarly, also in each guide roller 61a of the container accommodating portion 6 to be described later, the guide roller 61a on the side closer to the container base 50 corresponding to the upper side location in the container conveying direction is a guide located on the lower side location. A slight height difference 6h1, 6h2 is provided so as to be higher than the roller 61a when the machine body is in a horizontal position. Also, in the relationship between the container table 50 side and the container storage table 6 side, the former is positioned higher than the latter.

  Reference numeral 57 in FIGS. 5 and 6 denotes a stopper for limiting the empty container C supplied on the container base 50 from being easily displaced due to the influence of the vibration of the airframe. The biasing force by the spring is set to such an extent that the container base 50 on which the container C exists is lightly pressed and biased toward the upper side in the transport direction. Therefore, if the container C which has become full is pulled slightly toward the lower side of the path, the container C moves over the stopper 57 and moves to the container receiving table 6 side.

As shown in FIGS. 5 and 6, on the container base 50, the spherical guide rollers 51a are provided between the left and right rows along the lower path C2, that is, the rows of the left and right guide rollers 51a. An elevating support base 52 configured in an L shape in a side view is disposed with a horizontally oriented plate-like body 52a positioned therebetween and a vertically oriented frame body 52b perpendicular thereto.
As shown in FIG. 6, the elevating support base 52 is integrated with a swinging support shaft 53 in the front-rear direction that is pivotally supported by the support base portion on the terminal end side of the roller conveyor 48 at a position above the container base 50. It is provided so as to be swingable around the axis of the swinging support shaft 53, and an empty container C is obliquely loaded so that the carrot body a from the crop transporting device 4 can be received and recovered with little drop impact. It is configured as follows.
That is, in the free state, the lift support base 52 is maintained in the oblique posture state shown in FIG. 6 (a) by a known damper device 54 that is urged in the extending direction by the force of an internally mounted spring. As shown in FIG.

The damper device 54 is connected to a bracket 53a formed integrally with the swing support shaft 53 of the lifting support base 52 via a connection pin. The position of the axis P2 of the connecting pin is configured to be movable on one side of the line segment Y connecting the axis of the swing support shaft 53 and the axis of the connecting pin 54a of the damper device 54. ing.
Therefore, the lifting support base 52 is always urged to the lifting side, and the oblique posture shown in FIG. 6 (a) and the placement posture shown in FIG. 6 (b) depend on the weight of the container C to be placed. The posture is changed.
That is, as shown in FIG. 6A, in the state where the container C is empty, the lifting support base 52 is lifted up to the upper limit by the lifting biasing force of the damper device 54. In this state, when the collection of the crop into the container C progresses, the damper 52 is slowly lowered against the urging force of the damper device 54 as the weight of the filled crop increases. It is comprised so that the resistance by the spring of the apparatus 54 may act. Then, when the filling of the crop in the container C further proceeds, the lifting support base 52 is placed on the container placement surface 50F of the container stand 50 and is positioned in the state of FIG.
In order to make the lifting / lowering support base 52 into the oblique posture shown in FIG. 6 (a) again, if the full container C is removed from the lifting / lowering support base 52, the lifting / lowering support base 52 is moved by the biasing force of the damper device 54. It rotates around the swing support shaft 53 to restore the oblique standby posture shown in FIG.

As shown in FIGS. 6 and 11, the presence / absence detection of whether or not the container C is mounted on the lift support base 52 is performed by detecting the sensing plate 46 in contact with the lateral side surface of the container C and the movement of the sensing plate 46. The presence / absence detection sensor 45 is used.
The elevating support base 52 is pivotally supported at the upper end side thereof by a fixed support 47 part constituting the end support side of the roller conveyor 48 via the swing support shaft 53 facing forward and backward. The presence / absence sensor 45 is attached to a part of the upper end side of the base 52 so that the presence / absence sensor 45 also changes its position as the lifting / lowering support base 52 swings around the swing support shaft 53. It is configured.
The sensing plate 46 is pivotally supported with respect to the lifting support base 52 so as to be swingable around a swinging fulcrum 46 a different from the swinging fulcrum 53 of the lifting support base 52. The contact 45a of the presence / absence sensor 45 comes into contact with the back side, and the sensing plate 46 is pressed and urged from the back side. Thereby, it is detected that the container C is mounted on the lifting support 52 by swinging the sensing plate 46 to the back side, and the container C is lifted by returning swinging the sensing plate 46 away from the contact 45a. It is configured to detect removal from the support base 52.

Note that a part of the sensing plate 46 is located on the front side of the lifting support base 52 and overlaps with the lifting support base 52, and the sensing plate 46 swings to some extent on the back side. After the sensor 45 detects the presence of the container C, the sensor 45 is provided at a position in contact with the front surface of the lifting support base 52. This is because when a crop is put into the container C mounted on the container stand 3 and the container weight increases, the weight of the full container C acts on the presence / absence sensor 45 more than necessary, and the small presence / absence sensor 45 is damaged. This is to avoid such a situation.
As described above, when the presence / absence sensor 45 detects that the container C is mounted on the lifting / lowering support base 52, the presence / absence sensor 45 drives the crop conveyance device 4 and removes the container C from the lifting / lowering support base 52. Is detected, a control device 8 is provided for outputting a control signal to the drive interrupting mechanism 43 of the crop conveying device 4 so as to stop the driving of the crop conveying device 4.

A space for mounting an empty container C is provided on the airframe frame 3 on the front side of the airframe of the container base 50, and this space supplies a container supply section for supplying the empty container C to the container base 50. 55, and the container transport path from this part to the container table 50 is the upper path C1.
Further, on the left side of the container supply unit 55, on the front side of the roller conveyor 48, a box-shaped transmission cover 49 that covers the transmission transmission case and the power transmission structure to the harvesting unit 10 is higher than the roller conveyor 48. The upper part of the transmission cover 49 is a spare empty container place D.

  In the container transfer device 5 as described above, the following operations are performed. In this harvester, an auxiliary worker is attached in addition to a driving worker who controls the aircraft. The auxiliary worker basically sits on the auxiliary seat 9 at the rear of the traveling machine body and visually sorts the non-defective carrots a carried and transported by the roller conveyor 48, while the container platform of the container transfer device 5. The container C loaded in the container C loaded in the container 50 is moved to the rear of the container container 6 or moved from the container supply part 55 in front of the container container 50 to the container container 50 side. A container moving operation is performed such that the hand reaches from the rear through the roller conveyor 48 and the empty container C loaded in the empty container storage D is transferred to the container supply unit 55.

[Return regulation mechanism]
Between the container transfer device 5 and the container receiving table 6, the empty container C supplied on the container table 50 is restricted from being easily displaced due to the influence of vibration of the airframe. In addition to the stopper 57, a return regulating mechanism 7 is provided for regulating the return of the container C transferred from the container table 50 to the container storage table 6 to the container table 50 side.
As shown in FIGS. 5, 6, 8, and 9, the return restriction mechanism 7 includes a return restriction member 70 that is swingably mounted around the horizontal axis X <b> 4 on the body frame 3 side. A helical spring 71 as an urging means for swinging and urging 70 to the standing side, and a contact member for setting the standing position of the return regulating member 70 to a predetermined position against the urging force of the helical spring 71 72.
By being configured in this way, the return regulating member 70 is configured to be able to move out and withdraw with respect to the movement path of the container C from the container transfer device 5 to the container receiving table 6, and in the free state, The regulating action part 70a provided on the rocking end side of the return regulating member 70 is rocked and biased so as to project into the container movement path.
And in this protrusion attitude | position, the said control action part 70a of the return control member 70 is located in the state which contacted or adjoined to the one end side which faces the said container stand 50 side of the container C located on the container storage stand 6. The container C is configured to be restricted from moving toward the container table 50. In other words, the movement of the container C from the container transfer device 5 side to the container accommodating table 6 side is such that the regulating action portion 70a of the return regulating member 70 resists the biasing force of the helical spring 71 by the weight of the container C. The container C is allowed to be pushed down and retracted from the movement path, and the movement of the container C in the reverse direction is suppressed by contact with the regulating action portion 70a.

  The regulating action part 70a provided on the swinging end side of the return regulating member 70 has a length approximately the same as the length in the feeding direction of the container C along the transport path R of the container C on the container receiving table 6. When the straight bar-shaped member portion of the regulating action portion 70a sends out the container C from the upper-side storage base portion 61 toward the lower-side storage base portion 62, It has a function as a guide body.

[Container stand]
A container storage base 6 having a length extending from the container transfer device 5 to the lateral side of the riding-type operation unit 2 is shown in FIG. Around the front-rear axis P1, it is arranged so as to be able to switch between a horizontal overhanging posture continuous with the container transfer device 5 and a retracted posture folded upward.
The container receiving table 6 is composed of an upper-side receiving table portion 61 provided with a forcible driving means 60 for transferring the container C toward the front side of the machine body, and a lower-side receiving table portion 62 provided with no forcible driving means 60. Has been.

As shown in FIG. 5 to FIG. 7, the upper-side container 61 has a spherical guide roller 61 a as a guide body similar to the guide body 51 in the container transfer device 5, and a container of the container transfer device 5. It is provided so as to constitute a container mounting surface 61F that is positioned slightly lower than the mounting surface 50F so that it can be easily transported to the right side of the machine body along the lower transport path C2 in the same manner as the container transfer device 5. Further, it is configured to be rotatable around a horizontal axis X2 in a direction intersecting the lower-side conveyance path C2.
As shown in FIGS. 5 and 9, in the upper-side accommodation base portion 61, at each position between the outermost guide roller 61 a and the innermost guide roller 61 a among the spherical guide rollers 61 a, A pair of left and right drive chains 60a for forcibly moving the container C from the rear side to the front side of the machine body is provided, and a pressing body 60b is installed over the left and right drive chains 60a, and the drive chain 60a is wound around the drive chain 60a. A drive sprocket 60c for driving is provided.
The forcible drive means 60 is configured by the drive chain 60a, the pressing body 60b, the drive sprocket 60c, and the electric motor M that transmits power to the drive sprocket 60c.

As described above, the upper-side container 61 has a function as a container take-out portion 56 for taking out and placing a full container C filled with crops in the container stand 50. Yes, it has the same mounting area as that of the container table 50 and can be mounted for one container.
In addition to the above function as the container take-out portion 56, the upper-side storage base portion 61 transports the container C toward the lower-side storage base portion 62 side that follows (the lower side in the transport direction). Since the transfer function is achieved by the combination of the guide roller 61a and the forced driving means 60, the container C sent out from the container table 50 needs to be reloaded on the transfer device. Instead, they can be forcibly conveyed and accommodated in a direction different from the delivery direction.

The forcible driving means 60 in the upper-side container part 61 is driven by a first sensor S1 that detects that the container C has been sent from the container table 50 to a predetermined location of the upper-side container part 61, and a lower side that will be described later. It is controlled by the detection operation of the second sensor S2 provided at a plurality of locations of the accommodating table portion 62.
That is, when the first sensor S1 detects the presence of the container C and any one of the second sensors S2 does not detect the presence of the container C, or all the second sensors S2 If the presence is not detected, the drive chain 60a is forcibly driven by the half of the circumference, and a pressing operation by one of the two pressing bodies 60b attached to the peripheral portion of the drive chain 60a is performed. The container C that is present in the portion 61 is configured to be fed toward the lower accommodation portion 62, and the drive chain 60a is not driven when the sensors S1 and S2 are in other detection states. It is configured.

As shown in FIGS. 2, 3, 5, and 10, the lower-side accommodation base portion 62 is a deck having a predetermined accommodation area for accommodating the container C fed from the first accommodation portion 61. The frame 63 and a roller conveyance unit 64 disposed inside the deck frame 63 are configured. The roller transport unit 64 includes transport rollers 65 arranged at predetermined intervals, and a fixed tread plate member 66 disposed between the left and right transport rollers 65.
The deck frame 63 is configured as a common frame body with the frame of the upper-side container part 61, and is disposed on the lower side of the container side in the container driving direction in the upper-side container part 61, and moves in the container movement direction. The left and right two rows of transport rollers 65 are pivotally supported around the horizontal axis X3 intersecting the container moving direction.

As shown in FIGS. 5 and 10, the transport rollers 65 are arranged so that the left and right transport rollers 65 in the left and right rows along the longitudinal direction of the container receiving table 6 are tilted in the front-rear direction in the transport direction. Compared with the arrangement pitch p1 in the front-rear direction of the conveyance roller 65 in either one of the left and right rows, the left and right positions are shifted in the front-rear direction. The arrangement pitch p2 of the conveyance roller 65 in the front-rear direction is configured to be reduced to about half.
Each transporting roller 65 is mounted so as to rotate with a lateral rotation axis X3 in a direction intersecting the transporting direction of the transporting path R formed along the longitudinal direction of the container receiving table 6. In addition, a taper portion 65a is provided on the left and right sides of the transport path R in correspondence with the left and right width of the container C, and has a tapered portion 65a having a small diameter on the end side near the center of the transport path R and is connected to the large diameter side of the tapered portion 65a. The cylindrical body 65b is positioned on the outer side of the transport path R.

  As shown in FIGS. 5 and 10, the fixed tread plate member 66 is formed of a channel-shaped thin iron plate material disposed between the left and right conveying rollers 65, and is fixed to the deck frame 63. It is. The upper surface of the fixed tread plate member 66 is positioned lower than the upper edges of the cylindrical body portions 65b of the left and right transport rollers 65, and can be transported without contacting the container C during container transport. . The fixed tread plate member 66 uses the upper surface instead of a step so that a driver or auxiliary work can get on and off, and is also configured as means for facilitating getting on and off the traveling machine body. .

[Mode selection]
The driving of the forcible drive means 60 in the upper-side container part 61 includes a first sensor S1 for detecting that the container C has been sent from the container table 50 to a predetermined position of the upper-side container part 61, and the lower side. A mode change-over switch disposed near the fixed column 47 provided with the detection signal of the second sensor S2 provided at a plurality of locations of the receiving table portion 62 and the swing support shaft 53 for supporting the lifting support table 52. Operation signals of SW1 and manual operation switch SW2 are configured to be input to the contact 45a.

The contact 45a is configured so that the “automatic operation mode” and the “artificial operation mode” can be selectively switched by the switching operation of the mode switch SW1. In the selected state, it operates as follows.
If the first sensor S1 detects the presence of the container C and any one of the second sensors S2 does not detect the presence of the container C, or all the second sensors S2 detect the presence of the container C If it is not detected, the drive chain 60a is automatically forcibly driven by the half circumference, and the upper side accommodation is performed by a pushing operation by one of the two pressing bodies 60b attached to the peripheral portion of the drive chain 60a. The container C existing in the base portion 61 is configured to be fed toward the lower accommodation base portion 62, and the drive chain 60a is not driven when the sensors S1 and S2 are in other detection states. It is configured.

When the “manual operation mode” is selected, the following operation is performed.
The first sensor S1 detects the presence of the container C, and any one of the second sensors S2 does not detect the presence of the container C, or all the second sensors S2 detect the presence of the container C The drive chain 60a is not automatically driven even in a state in which the drive chain 60a is not operated. In this state, when the manual operation switch SW2 is operated, the drive chain 60a is forcibly driven by the half circumference. The container C existing in the upper-side container 61 is sent toward the lower-side container part 62 by a pressing operation by one of the two pressing bodies 60b attached to the peripheral part of the drive chain 60a. It is configured.
When the sensors S1 and S2 are in other detection states, the drive chain 60a is not driven, as in the automatic operation mode.

Therefore, in the automatic operation mode, when the full container C is moved from the container transfer device 5 to the container storage table 6, the first sensor S1 automatically detects the container C and the lower storage table portion 62 is empty. If there is, the container C can be immediately sent out to the lower side, so that it is possible to perform an efficient and quick operation without requiring an artificial container moving operation on the container receiving base 6 side.
In the human operation mode, even if the full container C is moved from the container transfer device 5 to the container storage 6, the container is not automatically fed in this state. After another full container C is mounted on the upper side of the container C existing in the portion 61, the manual operation switch is turned on to operate the container C in a two-tiered state toward the lower-side container portion 62 side. The work can be performed in a state where many containers C are mounted on the machine body, such as sending them out.

[Another embodiment]
[1] In the embodiment, the guide rollers 51a and 61a are exemplified as spherical rollers. The shape can be changed as appropriate, such as a shape whose length in the direction is larger than the length in the radial direction, or conversely, a shape whose length in the radial direction is larger than the length in the rotation axis direction. So long as it can be guided in a direction along the axis of rotation or in a direction intersecting with the axis of rotation.
[2] Further, the guide body 51 is not limited to the spherical guide rollers 51a and 61a as described above, and may be a non-rotating secondary curved surface, for example. Further, the curvature of the quadratic curved surface is not limited to the one in which the curvature in the direction along the axial direction is equal to the curvature in the direction intersecting therewith, but may have a shape with different vertical and horizontal curvature ratios.
[3] In the above-described embodiment, when configuring the transport roller 65 of the lower-side accommodation base portion 62, the transport roller 65 on either the left or right side forms a tapered portion 65a having a small diameter on the center side of the transport path R. However, the present invention is not limited to this. Of the left and right transport rollers 65, only the transport roller 65 at a position close to the traveling machine body side to which the deck frame 63 is attached has a small diameter on the center side of the transport path R. A structure in which a tapered portion 65a is formed may be used. In this case, at the outer position away from the center in the left-right direction of the traveling machine body, the conveyance roller 65 does not have the aforementioned tapered portion 65a, so that it is difficult to draw the container C in the horizontal direction. Is the ground, and it is relatively easy for the auxiliary operator to lift the outside of the container upward and place the bottom surface of the container C on the transfer roller 65, so there is no particular problem.

Left side view of the whole carrot harvester Top view of whole carrot harvester Right side view of the whole carrot harvester Rear view of carrot harvester Plan view of container transfer device and container receiving table Side view showing the lift support base part in the container transfer device Functional illustration of container transfer device and container receiving table Sectional view of the upper container part of the container container Sectional view of the upper container part of the container container Sectional view of the lower container part of the container container Explanatory drawing showing container position and related system control system

Explanation of symbols

3 Machine frame 5 Container transfer device 6 Container receiving table 7 Return regulation mechanism 10 Harvesting part 50 Container stand 61 Upper side receiving part 62 Lower lower side receiving part 70 Return restricting member 70a Restricting action part C Container X1, X2, X3 X4 horizontal axis core

Claims (3)

With a harvesting section that harvests crops in the field on one side of the traveling machine body, on the other side part of this traveling machine body, a container storage base that is formed along the longitudinal direction of the machine body is deployed,
A crop harvester comprising a container transfer device that accommodates a crop fed from the harvesting unit in a container and transfers the container toward the container receiving table side on the rear side of the harvesting unit,
A return regulating member is provided between the container transfer device and the container storage table, which allows the container to move from the container transfer device side to the container storage table side and inhibits the movement of the container in the reverse direction. Crop harvester.   2. The crop harvesting machine according to claim 1, wherein the return regulating member is formed with a regulating action part for guiding the delivery movement of the container along the conveyance path on the container receiving table. The return regulating member is configured to be able to move in and out of the movement path of the container at the boundary between the container transfer device and the container receiving table, and the regulating action portion of the return regulating member projects into the container movement path in a free state. As the container moves from the container transfer device side to the container receiving table side, the regulating action part is pushed down by the weight of the container and retreats from the movement path. The crop harvester according to claim 1 or 2, which is configured as described above.

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