JP7319232B2 - field work machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to an agricultural material supply apparatus provided with a hopper and a delivery unit for storing agricultural materials, and a ground supply unit for supplying agricultural materials to a field.

Conventionally, a field working machine having a hopper and a delivery section for storing agricultural materials and a ground supply section for supplying agricultural materials to a field in an agricultural material supply apparatus is configured as follows. Are known.
That is, the hopper of the agricultural material supply apparatus is formed with a required number of partitioned storage spaces inside the hopper according to the number of locations to be supplied to the ground, such as the number of seedling planting rows. In addition, a delivery section and a ground supply section were also provided corresponding to each accommodation space (see Patent Document 1).

JP 2019-170209 A

In the field working machine described in Patent Document 1, a required number of partitioned storage spaces are formed inside the hopper according to the number of locations to be supplied to the ground, such as the number of seedling planting rows. When adopting specifications with different numbers of locations to be supplied to the ground, such as the number of seedling planting rows, it is necessary to prepare hoppers with different specifications. For this reason, separate molds must be made to manufacture hoppers with different specifications, which tends to increase manufacturing costs. In order to solve such a problem, a hopper having a single storage space for agricultural materials may be manufactured, and only the required number of hoppers may be used to minimize the number of molds to be manufactured.
However, if the agricultural materials stored in each storage space are not consumed at the same time, the hopper that stores the agricultural materials will have areas where the agricultural materials are supplied and areas where the agricultural materials are not supplied. problems in terms of For this reason, the storage spaces in the hopper are communicated with each other at least on the upper half side so as to equalize the amount of agricultural material consumed in each storage space. Thus, it was difficult to employ a hopper with a single storage space due to the necessity of connecting the storage spaces in the hopper.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a field working machine capable of reducing the number of molds used in manufacturing a hopper whose specifications can be changed, thereby reducing costs.

The field working machine of the present invention is
An agricultural material supply device for supplying agricultural materials to the field is provided,
The agricultural material supply device includes a hopper that is mounted on a traveling body and stores the agricultural material, a delivery unit that delivers a predetermined amount of the agricultural material from the hopper, and a ground supply that delivers the delivered agricultural material to a field. and
The hopper is provided with a plurality of container unit bodies arranged in a row in the left-right direction, and a series of upper cover bodies covering the upper surface side over the plurality of container unit bodies,
Side wall portions of the container unit body facing each other in the left-right direction are formed with upwardly-opening notches so as to communicate the inner spaces of the container unit body with each other,
a connecting portion for connecting the container units positioned adjacent to each other in the left-right direction to the side wall portion in which the upward notch portion is formed;
Of the container units, the upward cutouts formed in the laterally outermost side wall portions of the container unit bodies positioned on the outermost sides in the horizontal direction are fitted into the upward cutouts. It is characterized in that it is closed by an end lid having a shape that fits in.

According to the present invention, the side wall portions of the container units facing each other in the left-right direction are formed with upward cutouts that are open upward, and the side wall portions formed with the upward cutout portions are formed with the container units that are adjacent to each other. A connecting portion is provided for connecting the As a result, the inner spaces of adjacent container units communicate with each other. The upward cutouts formed in the laterally outermost side wall portions of the container units located on both the leftwardly and rightwardly outermost sides are shaped to fit into the upward cutouts. By closing the hopper with , it is possible to prevent the agricultural materials from leaking out from the entire hopper while communicating the internal spaces of the container units.
The upper cover covering the upper surface side of the container unit does not provide an upper cover for each container unit, but employs a series of upper covers covering the upper surface side over a plurality of container units. This is because the partitioned storage spaces in each container unit body are close to each other and communicate at the top, so that when a lid is provided on the upper side of each container unit, the adjacent lids are sealed. This is to avoid the need for a structure for
According to this configuration, there is no need to adopt a hopper having a structure in which all of the required number of compartmented storage spaces are formed inside, and the individual container units are connected to each other to store the required number of compartments on the outermost side. It can be a structure with a storage space. Then, the end lids are fitted into the upward cutouts formed in the side walls of the outermost ends to close them, and the entirety of the plurality of container units are covered with a series of upper lids on the upper surface side, A hopper with the required number of storage spaces can be constructed. As a result, even when adopting a specification with a different number of storage spaces partitioned as a hopper, it is possible to easily change the specification by changing the number of connections between the container units.
In this way, the number of molds for manufacturing a hopper whose specifications can be changed is reduced, and a field working machine capable of achieving cost reduction is obtained.

In the present invention, it is preferable that the plurality of container unit bodies are formed in the same shape as each other.

According to this configuration, since the plurality of container unit bodies have the same shape, it is effective to reduce the number of molds due to common use.

In the present invention, the connection portion is formed such that the upper edge portion of one upward cutout portion and the lower edge portion of the other upward cutout portion are formed in the side wall portions of the mutually opposing positions of the container units that are adjacent to each other in the left-right direction. It is preferable that the connecting structure restricts the relative movement in the horizontal direction between the container units by being fitted from above and below.

According to this configuration, the connection portion provided on the side wall portions of the mutually facing positions of the adjacent container unit bodies is connected to the upper edge portion of one upward notch portion and the lower edge portion of the other upward notch portion in the vertical direction. Due to the connection structure in which the container units are loosely fitted, it is easy to simultaneously form the connecting portion for restricting the horizontal relative movement of the container units during the manufacturing process of the container units. Therefore, it is possible to reduce the manufacturing cost and the number of man-hours compared to the case where the connecting portion is provided separately.

In the present invention, the end cover has one end side fitting part shaped to fit into an upward notch formed at one of the laterally outermost ends, and the other laterally outermost end. It is preferable that the other end side fitting portion having a shape to be fitted into the upward notch formed in the end cover is separately formed on the front surface and the back surface of the end cover.

With this configuration, the one-end-side fitting portion and the other-end-side fitting portion are separately formed on the front surface and the back surface of the common end cover. It is possible to manufacture with a single mold without separately manufacturing the one with the part and the one with the other end side fitting part with separate molds. can be reduced.

In the present invention, it is preferable that a hinge is attached across the upper portion of the container unit body and the upper lid body at a position facing the upper portion of the container unit body so as to be swingably openable and closable.

With this configuration, the long upper lid and the plurality of container unit bodies are connected by the hinge for connecting the upper lid so that it can be opened and closed by swinging. It can also be used as a means for connecting the upper parts of unit bodies.

In the present invention, a conveying hose capable of supplying and conveying the agricultural material is attached across the feeding portion and the ground supply portion, and the conveying hose is attached to the feed portion in the middle of the conveying route from the feeding portion to the ground supply portion. It is preferable that they are connected via a one-touch connection mechanism that can be attached and detached by operation.

According to this configuration, it is easy to quickly attach and detach the transportation hose in the middle of the transportation route by using the one-touch connection mechanism.

In the present invention, among the transport hoses, the transport hose connected to the delivery unit for delivering the agricultural material from the container unit located at the center in the left-right direction is arranged to be delivered from the ground supply unit. It is preferable to be detachable at a position near the part.

According to this configuration, even in a field working machine to which a laterally wide ground working device is connected, the conveying hose connected to the delivery portion for delivering the agricultural material from the container unit located at the center in the lateral direction. Attachment and detachment can be performed relatively easily.
In other words, even if it is difficult to attach and detach from the left and right ends of the ground working device in the field, the attachment and detachment location of the transport hose should be closer to the feeding portion than to the ground supply portion. As a result, it becomes possible to reach out from above the traveling machine body to carry out the attachment/detachment work, making it easy to attach/detach the hose for transportation.

In the present invention, it is preferable that the delivery portion is provided for each of the container units, and the pair of left and right transport hoses are connected to each delivery portion.

With this configuration, it is easy to reduce connection errors between the feeding portion and the transport hose.

1 is an overall side view of a riding-type rice transplanter; FIG. 1 is an overall plan view of a riding-type rice transplanter; FIG. It is a rear view which shows a fertilization apparatus. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3; 4 is a cross-sectional view taken along line V-V in FIG. 3; FIG. It is a perspective view which shows the container unit body of a hopper. FIG. 4 is a perspective view showing a state in which a plurality of container units are connected; FIG. 4 is a longitudinal cross-sectional view along the left-right direction, showing the outermost container unit and the container units adjacent to the container unit. It is a fragmentary sectional view showing the connection structure of the hose for conveyance in a conveyance path. FIG. 4 is a partial cross-sectional view showing an automatic closing structure for a transport hose in a transport route;

An example of an embodiment of the present invention will be described below with reference to the drawings.
Note that the front-rear direction and the left-right direction in the description of the present embodiment are described as follows unless otherwise specified. That is, in the agricultural field work machine to which the present invention is applied, the traveling direction on the forward side (see arrow F in FIGS. 1 and 2) during work traveling of the traveling machine body is "forward", and the traveling direction on the backward side (see FIGS. 1 and 2) ) is "rear", the direction corresponding to the right side (see arrow R in FIG. 2) is "right", and the direction corresponding to the left side (see arrow R in FIG. 2) is "rear". arrow L) is "left".

[Overall configuration of field work machine]
FIG. 1 is a side view showing the entire ride-on rice transplanter as a field work machine according to the present invention. FIG. 2 is a plan view showing the entire ride-on rice transplanter.
As shown in FIGS. 1 and 2, the riding-type rice transplanter has a pair of left and right front wheels 1F, 1F at the front of a traveling machine body 1 that can be steered, and a pair of left and right drive wheels at the rear of the traveling machine body 1. It has rear wheels 1R, 1R as wheels and is configured to run by itself.
Power from an engine 20 provided in a driving unit 2 at the front of the vehicle body is transmitted to the rear wheels 1R, 1R. The power of this engine 20 is connected to the fertilizing device 4, which will be described later, mounted on the rear part of the traveling machine body 1, and to the rear part of the machine body frame 10 of the traveling machine body 1, via a link mechanism 11 capable of swinging up and down. It is also transmitted to the seedling planting device 6 as a working device.

The traveling machine body 1 is equipped with a driving section 3 on the rear side of the driving section 2 . In this driving section 3, an operating section 31 having a steering handle 31a and the like is arranged in front on an operating section step 30, and a driver's seat 32 is arranged in the rear. is configured to be possible. Below both lateral ends of the operation portion step 30, there are provided steps 35 for getting on and off, which are used when getting on and off from the ground.

As shown in FIG. 2 , side steps 22 are provided on both left and right sides of an engine bonnet 21 in which the engine 20 is housed in the driving portion 2 . Passing through this side step 22, it is configured to be transferable from the front side of the body.
As shown in FIGS. 1 and 2, the preliminary seedling placement table 12 is provided laterally outside of the left and right side steps 22 in the front part of the traveling machine body 1 .
Marker devices 24 are also provided on both lateral sides of the front part of the traveling body. In FIGS. 1 and 2, the marker device 24 is supported along the front-rear direction of the traveling machine body 1 and in a retracted posture that is bent upward. It is used in a posture in which the bent tip side is set in a horizontal direction and the traveling body 1 is extended laterally outward.

As shown in FIG. 2, the driving portion step 30 is formed such that the lateral width of the driving portion step 30 at a location on the front side of the driver's seat 32 is not constant, but has different portions in the front and rear. That is, the width in the left-right direction of the driver step 30 at the rear side position near the driver's seat 32 is wider than the width in the left-right direction of the driver step 30 at the front side position farther from the driver's seat 32 . As a result, a narrow portion 33 having a slightly narrow width in the left-right direction exists at a position farther from the driver's seat 32 and closer to the front side, and a position closer to the driver's seat 32 and closer to the rear has a narrower width than the narrow portion 33 . A wide portion 34 having a wide directional width is present.
More specifically, the width of the narrow portion 33 in the left-right direction is about the same as the distance between the outermost side steps 22 on both sides of the driving portion 2, or slightly wider than that. The wide part 34 is wider than that, is wider than the lateral width of the hopper 40 of the fertilizing device 4 arranged on the back of the driver's seat 32, and holds 10 rows of seedlings provided in the seedling planting device 6. The width is set so as not to exceed the lateral width of the seedling placement table 60 having the portion 60a.

[Seedling planting device]
As shown in FIGS. 1 and 2, a seedling planting device 6, which is an example of a ground working device, is connected to a rear end portion of a link mechanism 11. As shown in FIGS.
The front end of a planting frame 61 of the seedling planting device 6 is connected to the rear end of the link mechanism 11 . Ten seedling planting mechanisms 62 mounted in a row in the lateral direction of the traveling machine body at the rear of the planting frame 61, a seedling platform 60 provided above the planting frame 61, and the lower part of the planting frame 61. , are provided with five ground floats 63 mounted side by side in the lateral direction of the traveling body, and are configured for 10 rows of planting.
The seedling placement table 60 is arranged in the lateral direction of the traveling machine body and includes ten seedling placement portions 60a configured to place mat-like seedlings thereon. The seedling placement table 60 is supported by a strut member provided on a planting frame 61 so as to be reciprocally movable in the lateral direction of the machine body. The seedling placement table 60 is reciprocated in conjunction with the seedling planting movement of the seedling planting mechanism 62, and supplies the seedlings to each seedling planting mechanism 62 from the seedling placement portion 60a.
At the rear of the seedling planting device 6, a chemical spraying device 64 for spraying a chemical to the field after seedlings are planted is installed.

Each grounding float 63 is in contact with the field when the seedling planting device 6 is in a downward operation state, and supports the seedling planting device 6 so that the seedlings planted by each seedling planting mechanism 62 reach a predetermined depth. Then, the seedling planting site by the seedling planting mechanism 62 is leveled.
Each of the ground floats 63 is provided with a grooving device 65 for cutting a groove for guiding and embedding the fertilizer supplied from the fertilizing device 4 into the mud surface.

[Fertilizer]
A riding-type rice transplanter is provided with a fertilizing device 4 as an example of an agricultural material supply device.
The fertilizing device 4 includes a hopper 40 that stores powdered fertilizer, which is an example of an agricultural material, a delivery unit 50 that delivers a predetermined amount of the fertilizer stored from the hopper 40, and a ground supply unit that delivers the delivered fertilizer to a field. and a grooving device 65 as.
The hopper 40 is provided at the rear end of the traveling machine body 1 with five container unit bodies 41 each having a storage space for powdered fertilizer arranged in a row in the left-right direction and positioned on the back side of the driver's seat 32 . ing. A delivery portion 50 is provided at the bottom of each container unit 41 . Fertilizer delivered from the delivery unit 50 is sent to a grooving device 65 provided in the seedling planting device 6 via a transport hose 51 and supplied to a ditch formed in the field.

As shown in FIGS. 3 to 6, the lower periphery of each container unit 41 arranged in the horizontal direction is connected by a series of connection frames 13, and the relative positions of each container unit 41 are fixed.
A feeding portion 50 connected to the bottom surface side of each container unit 41 is supported by a support frame 14 provided on the body frame 10 .
Connected to the delivery unit 50 are a transport hose 51 for delivering the fed fertilizer to the grooving device 65 side, and a wind generator 36 for transporting the fertilizer to the grooving device 65 side by wind power. ing.

The fan device 36 includes an electric blower 37 (corresponding to a blower) for fanning, a conveying duct 38a positioned in a supply route for conveying the fertilizer to the seedling planting device 6 side, and a surplus fertilizer to the outside. An exhaust duct 38b (corresponding to an exhaust path) serving as an exhaust path for extracting to the outside, and an intake duct 38c for taking in outside air that has been warmed by the electric blower 37 and dried in the driving section 2.

The delivery unit 50 includes a delivery mechanism composed of delivery rolls 53 and the like in an exterior case 52, and delivers a predetermined amount of fertilizer supplied from each container unit body 41 downward, and supplies a high-pressure fertilizer supplied from the transport duct 38a. It is configured to be sent out to the side of the carrier hose 51 on the carrier wind.
The delivery part 50 is provided for each container unit body 41, two transport hoses (51) are connected to each delivery part 50, and ten transport hoses (51) connected to the five delivery parts 50 ( 51 ), the fertilizer is sent out to ten ditch making devices 65 provided in the seedling planting device 6 .

[Hopper structure]
The structure of the hopper 40 will be explained.
As shown in FIGS. 3 to 8, the hopper 40 includes five transparent resin container units 41 each having a storage space S1 having a capacity capable of storing two strings of fertilizer, and the five container units 41. A series of upper lids 42 covering the upper surface side over 41, and upward notches 44 formed in side walls 41a at the laterally outermost ends of container unit bodies 41, 41 located at both laterally outermost sides. It has two end caps 43, 43 shaped to fit into the.

As shown in FIGS. 6 to 8, the container unit body 41 is formed with an upward notch 44 for allowing the container unit bodies 41 adjacent to each other in the left-right direction to communicate with each other above the accommodation space S1. there is The upward notch 44 is formed by cutting out a portion of the side wall 41a in the vicinity of the upper portion of the side wall 41a at positions opposed to each other in the left-right direction of the container unit 41 so that the upper side is open. ing.
Connection portions 41b and 41c for connecting container unit bodies 41 adjacent to each other in the left-right direction are provided on the side wall portion 41a in which the upward notch portion 44 is formed.

The connection portions 41b and 41c form a connecting structure that restricts the horizontal relative movement of the container units 41 adjacent to each other in the left-right direction. In this structure, the lower edge of an upward notch 44 formed in the side wall 41a of one of the container units 41 adjacent in the left-right direction is slightly bent laterally outward to form a rib-shaped first connecting portion 41b. It has become. Then, the lower edge portion of the upward notch portion 44 formed in the side wall portion 41a of the other container unit body 41 adjacent in the left-right direction embraces the rib-shaped portion of the first connection portion 41b from above. , is bent laterally outward to form a second connecting portion 41c formed in an inverted U shape.
As a result, the first connection portion 41b and the second connection portion 41c are fitted into each other from the vertical direction, thereby restricting the horizontal relative movement of the adjacent container unit bodies 41. .
The plurality of container unit bodies 41 are formed in the same shape, and the upward notch 44 and the connecting portions 41b and 41c are also formed in the same shape.

As shown in FIGS. 4, 5, 7 and 8, the end cover 43 is fitted into an upward notch 44 formed in the laterally outermost side wall 41a. The front surface of the end lid 43 is formed by the one end side fitting portion 43a having a shape and the other end side fitting portion 43b having a shape to be fitted into an upward notch portion 44 formed at the other outermost end in the left-right direction. and the rear surface.
That is, the one end fitting portion 43a is formed on the front surface of the end lid 43, and the other end fitting portion 43b is formed on the back surface of the end lid 43. As shown in FIG. In FIG. 7, on one end side of the hopper 40, that is, on the right end side, the one end side fitting portion 43a formed in front of the end cover 43 is an upward notch portion formed in the right outermost side wall portion 41a. 44 shows the state just before it gets stuck. On the other end side of the hopper 40, that is, on the left end side, the one end side fitting portion 43a formed on the back surface of the end cover 43 is fitted into the upward notch portion 44 formed on the left outermost side wall portion 41a. It shows the state just before it gets stuck.

FIG. 4 shows the left end side of the hopper 40, where the one end fitting portion 43a formed on the back surface of the end cover 43 is aligned with the upward notch portion 44 formed on the left outermost side wall portion 41a. , the state in which it is fitted inside the first connection portion 41b.
FIG. 5 shows that in the hopper 40 on the right end side, the one end side fitting portion 43a formed on the back surface of the end cover 43 is aligned with the upward notch portion 44 formed on the leftmost outermost side wall portion 41a. It shows a state in which it is fitted to the outside of the second connection portion 41c.

A mounting portion 46 for a hinge 45 for swingably connecting the upper cover 42 is formed near the upper end on the rear side of each container unit 41 of the hopper 40 . In addition, near the upper end of the container unit 41 on the front side, there is provided an engaging portion 48 capable of engaging a hook 47 provided on the end of the upper lid 42 opposite to the side on which the hinge 45 is provided. It is

[Hose connection]
As shown in FIGS. 9 and 10, the transport hose 51, which is a fertilizer transport path between the delivery unit 50 and the grooving device 65, can be attached and detached via a well-known one-touch connection mechanism 54 that can be attached and detached by one-touch operation. is configured to
The one-touch connection mechanism 54 includes an outer cylinder portion 55 and an inner cylinder portion 56 between the end of the upstream portion 51 a of the transport hose 51 and the end of the downstream portion 51 b of the transport hose 51 . In addition, it is constructed so that it can be engaged and disengaged by a one-touch operation by sliding the outer cylinder portion 55 with respect to the inner cylinder portion 56 .
In other words, the connection state and the disengagement state are obtained by engaging and disengaging the ball member 55a provided in the outer cylindrical portion 55 provided in the end portion of the upstream portion 51a with respect to the annular recess portion 56a provided in the end portion of the downstream portion 51b. It is possible to switch to The ball member 55a is a steel ball, and the annular recess 56a is made of a resin molded part that can be elastically deformed to some extent. The steel ball rides over the front and rear projections of 56a to disengage.

The above-mentioned one-touch connection mechanism 54 is attached to the transport hose 51, which is a fertilizer transport route between the feeding portion 50 and the grooving device 65, at different positions near the outer side in the left-right direction and near the center. there is
In other words, among the transport hoses 51 that serve as a fertilizer transport path between the delivery portion 50 and the grooving device 65, the delivery portion 50 located on the outermost side in the left-right direction and the delivery portion 50 adjacent to the delivery portion 50 on the outer side. For the transport hose 51 to be connected, a one-touch connection mechanism 54 is provided at a position close to the grooving device 65 provided in the seedling planting device 6 in the length direction of the transport path, so that the seedling planting device 6 can be connected. It is arranged so that it can be operated at a relatively low position so that it is possible to reach out from the side and perform the attachment/detachment operation.

A grooving device 65 provided in the seedling planting device 6 is connected to the conveying hose 51 connected to the feed-out portion 50 at the center for feeding out the fertilizer from the container unit body 41 positioned at the center in the left-right direction. A one-touch connection mechanism 54 is provided at a location closer to the feeding portion 50 at the central location than the grooving device 65, not at a location closer to.
In a large riding type rice transplanter with a large number of seedling planting rows, it is difficult to reach out from the lateral side of the seedling planting device 6 to attach and detach the one-touch connection mechanism 54. , a one-touch connection mechanism 54 is provided at a relatively high location nearer to the feeding portion 50 at the central location than the grooving device 65, and in a state of getting on the traveling machine body 1, hands are moved backward from the rear part of the traveling machine body 1. It has been extended so that it can be operated.

A closing mechanism 57 for automatically closing the end opening of the downstream portion 51b after the upstream portion 51a of the transfer hose 51 is removed at the location where the one-touch connection mechanism 54 is attached and detached. is provided.
As shown in FIGS. 9 and 10, the closing mechanism 57 includes a rocking lid member 58 supported so as to be vertically rockable about the horizontal axis p1, and the rocking lid member 58 mounted on the horizontal axis p1. A coil spring 59 that elastically biases toward the side where the transport hose 51 exists around p1 is provided.
With this structure, when the upstream portion 51a and the downstream portion 51b are connected as shown in FIG. there is When the upstream portion 51a is removed, the swingable lid member 58 swings about the horizontal axis p1 and contacts the end opening of the downstream portion 51b to close the end opening.

[Another embodiment]
Another embodiment will be described below. A plurality of the different embodiments described below may be used in combination as long as there is no contradiction. In addition, the scope of the present invention is not limited to the contents of these embodiments.

(1) In the above-described embodiments, powdered fertilizer is used as an agricultural material, but the material is not necessarily limited to this. For example, chemicals or seed rice may be used. When seed rice is used as an agricultural material, the seedling planting device 6 for planting seedlings should be detachable.
Other configurations may employ configurations similar to those of the above-described embodiment.

(2) In the above-described embodiment, in the adjacent container units 41, the side wall portion 41a formed with the upward cutout portion 44 that opens upward is a connection portion that connects the container units 41 that are adjacent in the left-right direction to each other. Although an example in which 41b and 41c are provided has been shown, the structure is not necessarily limited to this. For example, the locations where the connection portions 41b and 41c are provided are not limited to the location where the upward notch portion 44 is formed, and the connection portions 41b and 41c are provided so as to connect the side wall portions 41a at positions facing each other. may
Other configurations may employ configurations similar to those of the above-described embodiment.

(3) In the above-described embodiment, the structure in which the one end side fitting portion 43a and the other end side fitting portion 43b are formed on the front surface and the back surface of the end cover 43 is illustrated. It is not limited. For example, the end lid body 43 formed with the one end side fitting portion 43a and the end lid body 43 formed with the other end side fitting portion 43b may be configured separately.
Other configurations may employ configurations similar to those of the above-described embodiment.

(4) In the above-described embodiment, all the container units 41 constituting the hopper 40 have the same structure, but the structure is not necessarily limited to this. For example, part of the container unit body 41 may have the same structure.
Other configurations may employ configurations similar to those of the above-described embodiment.

The present invention is not limited to rice transplanters, but can also be applied to direct seeders, vegetable transplanters, fertilizer and chemical sprayers in fields, and the like.

4 Agricultural material supply device 40 Hopper 41 Container unit 41a Side wall 41b, 41c Connecting part 42 Upper cover 43 End cover 43a One end fitting part 43b Other end fitting part 44 Upward notch 45 Hinge 50 Feeding part 51 Transportation hose 52 One-touch connection mechanism 65 Ground supply unit

Claims (8)

An agricultural material supply device for supplying agricultural materials to the field is provided,
The agricultural material supply device includes a hopper that is mounted on a traveling body and stores the agricultural material, a delivery unit that delivers a predetermined amount of the agricultural material from the hopper, and a ground supply that delivers the delivered agricultural material to a field. and
The hopper is provided with a plurality of container unit bodies arranged in a row in the left-right direction, and a series of upper cover bodies covering the upper surface side over the plurality of container unit bodies,
Side wall portions of the container unit body facing each other in the left-right direction are formed with upwardly-opening notches so as to communicate the inner spaces of the container unit body with each other,
A connecting portion for connecting the container unit bodies adjacent to each other in the left-right direction is provided on the side wall portion in which the upward cutout portion is formed,
Of the container units, the upward cutouts formed in the laterally outermost side wall portions of the container unit bodies positioned on the outermost sides in the horizontal direction are fitted into the upward cutouts. A farm working machine that is closed with an end cover that is shaped to get stuck. 2. The field working machine according to claim 1, wherein said plurality of container units are formed in the same shape as each other. The connecting portion is configured such that, in the side walls of the container units that are adjacent to each other in the left-right direction, the upper edge of one of the upward cutouts and the lower edge of the other of the upward cutouts are connected from the top and bottom. 3. The field working machine according to claim 1, wherein the connecting structure restricts the horizontal relative movement of the container units by being fitted into each other. The end cover body has one end side fitting portion shaped to fit into an upward notch formed at one of the laterally outermost ends, and a fitting portion formed at the other laterally outermost end. The field working machine according to any one of claims 1 to 3, wherein the other end side fitting portion having a shape to be fitted into the upward notch portion is separately formed on the front surface and the back surface of the end lid. . The agricultural field according to any one of claims 1 to 4, wherein a hinge is attached to connect the upper portion of the container unit body and the upper lid member at a position facing the upper portion of the container unit body so as to be swingably openable and closable. working machine. A transport hose capable of supplying and transporting the agricultural material is attached across the delivery part and the ground supply part,
The field work according to any one of claims 1 to 5, wherein the transport hose is connected via a one-touch connection mechanism that can be attached and detached by a one-touch operation in the middle of the transport route from the feeding unit to the ground supply unit. machine. Among the transportation hoses, the transportation hose connected to the delivery unit for delivering the agricultural material from the container unit positioned at the center in the left-right direction is positioned closer to the delivery unit than the ground supply unit. 7. The field working machine according to claim 6, which is configured to be detachable at. The delivery unit is provided for each container unit,
8. The field working machine according to claim 6 or 7, wherein a pair of left and right transport hoses are connected to each delivery part.

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