JP2002284117A - Chute device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chute device, capable of dropping a crop to a desired drop position. SOLUTION: The chute device 25a has a fixed chute 27, which drops the crop W by moving it on a conveying face 35 having a descending slope shape under is own weight from a conveying end 35a. A movable chute 29 is connected to an axis body 26 of the vertical direction of the fixed chute 27 in a hanging condition via an operating handle-cum-connection arm 28. The movable chute 29 receives the crop W from the fixed chute 27, moves it on a conveying face 50 having a descending slope shape with the own weight, and drops the crop W after conveying from a conveying end 50a. The movable chute 29 can be adjusted to rotate at the center of the axis body 26 by operating the operating handle-cum-connecting arm 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chute device having a chute whose rotation can be adjusted.

[0002]

2. Description of the Related Art As a conventional chute apparatus, for example, a chute apparatus disclosed in Japanese Patent Application Laid-Open No. 5-76236 is known.

The chute device described in Japanese Patent Application Laid-Open No. 5-76236 is for loading agricultural products sequentially sent from the upstream side into a container such as a container having an open upper surface. A configuration including a chute that rotates around a shaft body in the left-right horizontal direction according to operation is adopted.

[0004]

However, in a configuration in which the chute is rotatable about a left-right horizontal shaft as in the above-described conventional chute apparatus disclosed in Japanese Patent Application Laid-Open No. 5-76236, for example, The transfer end position of the transfer surface of the chute cannot be shifted left and right,
For example, there is a possibility that the crop cannot be dropped to a desired drop position on a slope or the like.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide a shoot device capable of dropping a crop to a desired drop position.

[0006]

According to a first aspect of the present invention, there is provided a chute apparatus which is configured to be rotatable about a vertical rotation center axis, and that the crop is transferred on a downwardly inclined conveying surface. It is provided with a chute for moving the crop by its own weight and dropping the crop after the movement from the transfer end of the transfer surface.

In this configuration, the crop can be dropped to a desired drop position by rotating the chute about the vertical rotation center axis.

According to a second aspect of the present invention, there is provided a chute device for loading agricultural products sequentially fed into a container having an open upper surface, the shaft body having an axial direction coinciding with the up-down direction, and the up-down direction. It is configured to be rotatable about the shaft body, and moves the crop by its own weight on the downwardly inclined transfer surface, and transfers the moved crop to the container from the transfer end of the transfer surface to the container. And a chute to be dropped toward.

[0009] In this configuration, the crop can be dropped to a desired drop position by rotating and adjusting the chute about the shaft in the vertical direction, so that the operation of loading the crop into the container can be performed. Can be performed efficiently.

[0010] According to a third aspect of the present invention, there is provided a chute apparatus having a vertical shaft at a transport end side, and moving a crop by its own weight on a downwardly inclined transport surface. A first chute to be dropped from a conveyance end of the conveyance surface, and a first chute that is suspended from the shaft of the first chute via an operation handle and a connection arm;
A second chute for moving the crops from the shoots on the downwardly inclined transfer surface by its own weight, and dropping the moved crops from the transfer end of the transfer surface. The chute is adapted to be rotatable about the shaft by rotating the operating handle and the connecting arm.

In this configuration, the second chute is turned around the vertical shaft with respect to the first chute by operating the operation handle and the connecting arm, although the configuration is extremely simple. The dynamic adjustment makes it possible to drop the crop to a desired drop position.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings.

4 and 5, reference numeral 1 denotes a self-propelled harvester, which is an agricultural work machine. The harvester 1 travels in a field and produces a substantially spherical crop W, for example, root crops such as potatoes. It is used for harvesting.

FIG. 4 and FIG.
As shown in the figure, a machine frame 2 is provided.
A crawler 4, which is a traveling means driven by the engine 3, is provided, and the whole harvester 1 travels on a field by driving the crawler 4.

Further, from the front end of the machine casing 2 to a substantially central portion, a receiving and conveying means 5 for receiving and conveying the crop W from the field is provided.

The receiving / transporting means 5 is provided with an inclined conveyor 7 with a grounding wheel 6 for digging the crop W from the field and transporting the crop W obliquely upward, and receiving the crop W from the inclined conveyor 7 to a position substantially vertically above. Lifting conveyor 8 to be transported
And a sorting conveyor 9 that receives the crop W from the lifting conveyor 8 and transports the crop W substantially horizontally.

Further, the crop W is transported substantially horizontally to the left and right sides of the substantially central portion of the machine frame 2 while the crop W is transported substantially horizontally.
Soil removing devices 11a and 11b, which are a pair of right and left conveying means for removing soil adhering to the surface of the sorting conveyor 9, are disposed along the sorting conveyor 9 at a position near the sorting conveyor 9. Steps 12a and 12b are provided on the left and right sides in the approximate center of the machine casing 2.
Is protruding toward the side, and the operator can
a, 12b, and the crop W on the sorting conveyor 9
, And only the selected agricultural products W having commercial value are supplied into the respective working spaces 13 of the soil removing devices 11a and 11b.
Supplied from

The crop W supplied into the work space 13
Is supported by the belt-side elastic projections 16 protruding from the outer surface of the elastic belt 15 and the roller-side elastic projections 18 protruding from the outer peripheral surface of the roller 17, and is pressed by the spiral roller-side elastic projections 18. The paper is conveyed toward the discharge port 19 along the work space 13 which is a conveyance path.

In the course of the transportation, the crop W is resilient to the elastic belt 15 whose center in the direction of movement of the outward road surface 15a is slightly bent inward in accordance with the mass, shape, etc. of the crop W. The belt-side elastic protrusion 16 that is driven and rotated integrally with the roller 17 and the roller-side elastic protrusion 18 that is driven and rotated integrally with the roller 17 rub strongly so that the surface is not damaged while being forcibly rotated. As a result, the soil is scraped off the entire surface of the crop W and removed.

On the other hand, at the rear end of the machine frame 2, a container mounting table 21 as a cargo bed is provided in a substantially horizontal shape. On the container mounting table 21, at least the upper surface is formed in a substantially rectangular parallelepiped shape. A plurality of containers 23 as open containers are placed. That is, for example, eight containers 23 are arranged side by side in a state of being adjacent to two rows in front and rear and four in the row direction.

The crop W from which the soil has been removed by the pair of left and right soil removal devices 11a and 11b is then removed from the soil removal devices 11a and 11b.
After being discharged from the discharge ports 19, 19, it moves on a pair of left and right chute devices 25 a, 25 b and is accommodated in the container 23.

Here, the left side chute device 25a connected to the soil removing device 11a on the left side of the machine casing 2 and the right side corresponding to the other side connected to the soil removing device 11b on the right side of the machine frame 2 are connected. The basic configuration is the same as that of the chute device 25b except for the point that the chute device 25b is symmetrical. Therefore, the left chute device 25a is mainly described. Note that the components of the right chute device 25b are assigned the same reference numerals as those of the left chute device 25a, and descriptions thereof are omitted.

The left chute device 25a is for loading the crop W continuously and sequentially sent from the corresponding soil removing device 11a into the container 23. As shown in FIGS. A fixed chute 27 as a first chute having a portion fixed to the rear end of the soil removing device 11a and having a vertical shaft 26 at the transport end, and an operating handle attached to the shaft 26 of the fixed chute 27 A movable chute 29 as a second chute, which is a chute suspended in a suspended state via a joint arm 28, is provided.

The movable chute 29 is rotated by a worker's manual operation of the operation handle and the connecting arm 28 so that the movable chute 29 can be rotated about a rotation center axis X which coincides with the center axis of the shaft 26 in the vertical direction. It has a possible configuration. Further, the fixed chute 27 is arranged in a state of being inclined by a predetermined angle α with respect to the front-rear direction of the harvester 1 so that the fixed chute 27 is located closer to the center in the width direction of the harvester 1 as the transport end. Movable chute 29
Is located below the fixed chute 27 and the container
It is located above 23.

The fixed chute 27 has a frame 31. The frame 31 is a pair of elongated side frames 32, 32 facing each other at a predetermined distance from each other, and transporting the side frames 32, 32. It is constituted by an elongated connecting frame portion 33 integrally connecting the end portions on the end side.

An end of each side frame portion 32 on the transport start end side is fixed to a chute connecting portion 34 provided in the soil removing device 11a. Further, a cylindrical shaft body 26 rises upward from the upper surface at the center in the longitudinal direction of the connection frame portion 33, and this shaft body
26 is formed, for example, in the shape of a rod having a circular cross section.

The crop W is moved by its own weight to the side frame portions 32, 32 of the frame 31 on the downwardly inclined transfer surface 35, and the moved crop W is transferred to the transfer surface 35. A groove-shaped chute main body 36 to be dropped from the transfer end 35a is fixed.

The chute main body 36 is formed, for example, by bending a single thin strip-shaped soft rubber plate 37 into a substantially semicircular cross section and fixing both ends in the width direction of the rubber plate 37 with bolts or the like (not shown). And is fixed to the side frame portions 32. It should be noted that the upper surface of the rubber plate 37 in the width direction center is inclined downward so as to be positioned lower toward the transport end side, and the transport surface 35 is tilted downward.
Is composed.

The operating handle and connecting arm 28 is formed in a substantially U-shape integrally with, for example, a metal pipe material or the like.
It has an upper horizontal bar portion 41 and a lower horizontal bar portion 42 of different lengths, which are vertically spaced apart from each other, and one end of both horizontal bar portions 41, 42 is integrally formed by an elongated vertical bar portion 43. Are linked.

A substantially cylindrical fitting portion 44 is formed at the other end of the upper horizontal bar portion 41, one end portion of which is connected to the upper end portion of the vertical bar portion 43. , Is rotatably fitted to the outer periphery of the shaft 26 of the fixed chute 27 via a friction increasing member (not shown). The presence of the friction increasing member positions the operation handle / connection arm 28 with respect to the shaft 26, and prevents the operation handle / connection arm 28 and thus the movable chute 29 from inadvertently rotating about the shaft 26. It has become. Although not shown, the movable chute
A stopper means for reliably positioning the 29 at a predetermined position may be provided.

The movable chute 29 has a substantially U-shaped frame body 46. The frame body 46 is provided with a pair of elongated rectangular plate-shaped side frame plate portions 47, 47 which are separated from and opposed to each other with a predetermined distance therebetween. An elongated connecting frame 48 is formed by integrally connecting the end portions of the both side frame plate portions 47, 47 on the transport start end side. This connection frame
The other end portion of the lower horizontal bar portion 42 whose one end portion is continuous with the lower end portion of the vertical bar portion 43 is fixed to the central portion in the longitudinal direction of 48.

Then, the crop W from the fixed chute 27 is received by the frame 46, and the received crop W is moved on the downwardly inclined transfer surface 50 by the weight of the crop W. Transfer end of transfer surface 50 for crop W
A chute body 51 to be dropped from 50a is fixed.

The chute main body 51 is formed, for example, by a single soft rubber plate 52 into a substantially box shape with one side and an upper surface opened. And a transfer surface 50 on the upper surface of the bottom plate 53.
Is configured.

Guide side plates 54, 54 rise from both ends in the width direction of the bottom plate 53, and the upper end of each side plate 54 is fixed to a side frame plate of the frame 46 by a fixing tool such as a bolt (not shown). Department
It is fixed to 47. Further, a rear plate portion 55 rises from an end of the bottom plate portion 53 on the transport start end side, and an upper end portion of the rear plate portion 55 is connected to a connection frame portion of the frame body 46 by a fixing tool such as a bolt (not shown).
Fixed to 48.

As shown in FIGS. 2 and 3, the movable chute 29 is rotatable, for example, up to about 300 degrees around a vertical shaft 26 of the fixed chute 27.
The crop W can be set so as to fall from the transport end 50a toward the substantially central position of each of the four containers 23 adjacent to the front, rear, left and right. Shaft 26 of fixed chute 27
Are arranged at substantially the center of the entire four containers 23, that is, above the positions where the corners of the containers 23 face each other.

Next, the operation and the like of the harvester 1 having the above configuration will be described.

When the whole harvester 1 travels on the field by the drive of the crawler 4, the crops W vegetated in the soil of the field are sequentially dug out by the inclined conveyor 7 of the harvester 1 and conveyed diagonally upward. After that, it is lifted and conveyed by the lifting conveyor 8 and transferred onto the sorting conveyor 9.

On this sorting conveyor 9, the crop W is sorted manually by the operator, and only the crop W having commercial value is supplied to the soil removing devices 11a and 11b. Then, the soil attached to the surface of the crop W is removed by the soil removing devices 11a and 11b, and the crop W from which the soil has been removed is sequentially discharged from the outlet 19 of the soil removing devices 11a and 11b, and the chute devices 25a and 11b. Sent out on 25b.

Here, when the movable chutes 29 of the chute devices 25a and 25b are in the state shown by the solid line in FIG.
Moves on the downwardly inclined transfer surface 35 of the fixed chute 27 by the weight of the crop W, and when it reaches the position of the transfer end 35a of the transfer surface 35, it falls from the transfer end 35a toward the movable chute 29. .

Subsequently, the crop W moves on the downwardly inclined transfer surface 50 of the movable chute 29 by its own weight.
When reaching the position of the transport end 50a on the transport surface 50, the four containers 23, 23, 2
3, 23, it falls toward the substantially center position of the front right container 23, and as a result, a plurality of crops W
Are relatively evenly housed within.

When a plurality of crops W are loaded in the front right container 23 and the container 23 is full, the worker following the harvester 1 may, for example, While holding the horizontal bar portion 41 and the vertical bar portion 43, the movable chute 29 is rotated by the shaft 26, that is, by rotating the operation handle / connection arm 28 by a predetermined angle as shown by the arrow A in FIG. The movable chute 29 is quickly switched to a state shown by a two-dot chain line in FIG. 2 by rotationally adjusting the center axis X.

In the state shown by the two-dot chain line in FIG. 2, the crop W is transported by the transport surface 35 of the fixed chute 27 and the movable chute.
After moving on the transport surface 50 of the transport surface 50 by its own weight, it falls from the transport end 50a of the transport surface 50 toward the substantially center position of the front left container 23, and as a result, a plurality of crops W
23 relatively evenly housed.

When the front left container 23 is also filled with the crop W, the worker following the harvester 1 operates the operation handle / connection arm 28 to switch to the state shown by the solid line in FIG. In the state shown by the solid line in FIG. 3, the crop W is transported by the transport surface 35 of the fixed chute 27 and the transport surface of the movable chute 29.
After moving on its own weight, the transfer end 50a of the transfer surface 50
From the rear right container 23 to a substantially central position of the rear right container 23. As a result, the plurality of agricultural products W are relatively evenly stored in the rear right container 23.

Further, after this, the container 23 on the right also
When it is full, the worker following the harvester 1 rotates the operation handle / connection arm 28 by a predetermined angle as shown by the arrow B in FIG. 3 so that the state shown by the two-dot chain line in FIG. Switch.

In the state shown by the two-dot chain line in FIG. 3, the crop W is transported by the transport surface 35 of the fixed chute 27 and the movable chute.
After moving on the transport surface 50 of its own by its own weight, it falls from the transport end 50a of the transport surface 50 toward the approximate center position of the rear left container 23, and as a result, a plurality of crops W
23 relatively evenly housed.

Thus, for example, if all of the four containers 23 corresponding to the chute device 25a and the four containers 23 corresponding to the chute device 25b are full,
The traveling of the harvester 1 is stopped, the full container 23 is lowered from the container mounting table 21, and an empty container 23 is placed.

As described above, according to the chute devices 25a and 25b of the above-described embodiment, the fixed chute 27 is rotated by the operation handle / connection arm 28 despite the extremely simple structure. The movable chute 29 is rotated about the shaft 26 in the vertical direction to adjust the transfer surface.
Since the position of the transfer end 50a of the 50 can be shifted back and forth and left and right, the crop W from the upstream side can be dropped to a desired drop position regardless of whether it is on an inclined ground or the like, and therefore, the crop W Can be appropriately distributed to each container 23, and the crop W can be relatively uniformly and reliably accommodated in each of the four containers 23 adjacent to the front, rear, left, and right.

Therefore, the container stuffing operation for loading the agricultural products W into the container 23 can be performed efficiently without much trouble of the operator.

As shown in FIG. 6, four containers
The present invention can be applied to a case where a container 23a as a container having substantially the same size as 23 is used. In this case, by appropriately operating the operation handle / connection arm 28, the agricultural products W can be sequentially loaded from the corners of the container 23a. Therefore, the crops W can be easily and evenly accommodated, so that the container packing work can be efficiently performed.

The movable chute 29 has a maximum of about 300
Although described as being rotatable by degrees, for example, although not shown, a configuration that can be rotated by 180 degrees, 270 degrees, or 360 degrees may be used, and a configuration that can be rotated by 270 degrees or more is preferable.

Further, the inclined conveyor 7 of the harvester 1 is not limited to the one that receives the crop W by digging it from the field, but may be the one that picks up the crop W that has been dried on the field and receives it.

Further, the shoot devices 25a and 25b
Has been described as a device for loading in a container such as the container 23. For example, although not shown, a device that distributes and sends out the crop W to a plurality of transport means on the downstream side may be used.

[0053]

According to the first aspect of the present invention, the crop can be dropped to a desired drop position by rotating the chute about the vertical rotation center axis.

According to the second aspect of the present invention, by rotating the chute about the vertical shaft,
The crop can be dropped to a desired drop position, and thus the operation of loading the crop into the container can be performed efficiently.

According to the third aspect of the present invention, the second chute is vertically moved with respect to the first chute by rotating the operation handle and the connecting arm despite the extremely simple structure. By adjusting the rotation about the shaft, the crop can be dropped to a desired drop position.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a chute of the present invention.

FIG. 2 is a plan view of the above chute.

FIG. 3 is a plan view of the above chute.

FIG. 4 is a side view of the harvester provided with the above-mentioned chute.

FIG. 5 is a rear view of the harvester.

FIG. 6 is a plan view when a large container is used.

[Explanation of symbols]

23, 23a Containers 25a, 25b as containers Chute device 26 Shaft 27 Fixed chute as first chute 28 Operating handle and connecting arm 29 Movable chute as second chute which is a chute 35, 50 Transfer surface 35a, 50a Transportation end W Agricultural crop X Rotation center axis

Claims (3)

[Claims] 1. A structure in which a crop is moved by its own weight on a downwardly inclined conveying surface, wherein the crop is moved on the downwardly inclined conveyance surface. A chute device comprising a chute for dropping from a conveyance end of a conveyance surface. 2. A chute device for loading sequentially sent agricultural products in a container having an open top, comprising: a shaft whose axial direction coincides with the vertical direction; A movable adjustment is made, a crop is moved by its own weight on the downwardly inclined transfer surface, and a shoot that drops the moved crop from the transfer end of the transfer surface toward the container is moved. A chute device comprising: 3. A crop having a vertical shaft on a transport end side, moving a crop by its own weight on a downwardly inclined transport surface, and moving the crop after the movement from the transport end of the transport surface. A first chute to be dropped, the first chute being connected to the shaft of the first chute in a suspended state via an operating handle and a connecting arm, and allowing the crop from the first chute to fall on a downwardly inclined transfer surface. A second chute for moving the crop by its own weight and dropping the crop after the movement from the transport end of the transport surface, wherein the second chute is rotated by the operation handle and the connecting arm. A chute device characterized in that the rotation can be adjusted about the shaft.