JP7144363B2 - Soil sampling device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a soil sampling device for sampling soil such as a field.

Conventionally, a soil sampling device disclosed in Patent Document 1 is known.
The soil sampling device disclosed in Patent Document 1 includes a truck towed by a rotary tiller, and a soil sampling container placed on a base plate of the truck. This soil-collecting device can collect the scattered earth and sand plowed by the tillage tines of the rotary tiller into a soil-collecting container.

Japanese Utility Model Publication No. 58-3441

However, with the soil sampling apparatus disclosed in Patent Document 1, when it is desired to sample soil in different containers at a plurality of different locations, it is necessary to replace the soil sampling container many times, resulting in extremely poor workability. bad for
SUMMARY OF THE INVENTION It is an object of the present invention to provide a soil sampling apparatus capable of efficiently sampling soil in different containers at a plurality of different locations.

A soil sampling apparatus according to an aspect of the present invention includes a sampling unit that is provided in an agricultural machine that moves in a field and samples soil; a plurality of containers that can store the soil sampled by the sampling unit; a transport mechanism for sequentially transporting a predetermined number of containers to a receiving position capable of receiving the soil collected by the collecting unit, wherein the collecting unit is a tilling unit having a tillage claw for raking up the soil, A rear cover that covers the rear of the tillage unit is provided behind the tillage unit, and the container and the transfer mechanism are provided on the rear cover .
Preferably, the transport mechanism includes a track portion extending in a transport direction of the container, and a carriage movable along the track portion and having a plurality of storage portions for detachably storing the container, and a driving unit for moving the carriage.

Preferably, the transfer mechanism transfers the container along the width direction of the rear cover.
Preferably, the rear cover has a rear cover body covering the rear of the tillage tines and a flap cover attached to the rear end of the rear cover body, and the transfer mechanism and the container are arranged on the flap cover. is provided in

Preferably, the soil sampling device includes a discharge pipe that guides the soil collected by the collecting unit and discharges it toward the container, the discharge pipe having an intake provided on the collecting unit side; A discharge port is provided on the container side and opens toward the receiving position.
Preferably, the rear cover has a passage port through which the soil raked up by the tilling section can pass, and the intake port of the discharge pipe is connected to the passage port.

Preferably, a shutter device capable of switching opening and closing of the passage port is provided.
Preferably, a lid is provided to cover the tops of the plurality of containers, and the lid has an opening that opens only the tops of the containers in the receiving position.

According to the above soil sampling apparatus, the transfer mechanism can sequentially transfer a predetermined number of a plurality of containers to the receiving positions where the soil collected by the sampling unit can be received. can be efficiently performed.

It is a partial cross-sectional side view which shows an example of a soil sampling apparatus. It is a partial cross-sectional side view which shows the principal part of a soil sampling apparatus. FIG. 4 is a partial cross-sectional side view showing a discharge tube, a transfer mechanism, a container, and the like; It is a perspective view which shows an example of a rotary tiller. It is a figure which shows a mode that the soil raked up by the extraction|collection part goes to a container. FIG. 4 shows a carriage and a container; FIG. 3 is a rear view showing the state of the truck, container, etc. before soil sampling. 4 is a rear view showing a drive section and the like; FIG. It is a rear view which shows the state which accommodated the soil in the container in the transfer direction frontmost. FIG. 10 is a rear view showing a state in which the container is moved forward from the state shown in FIG. 9; It is a rear view which shows the state which accommodated the soil in all the containers.

A preferred embodiment of a soil sampling device according to the present invention will be described below.
FIG. 1 is a side view showing a soil sampling device 1 according to the invention.
In the following description, the direction of arrow X1 in FIG. 1 is referred to as the front, the direction of arrow X2 is referred to as the rear, and the direction of arrow X is referred to as the front-rear direction. A horizontal direction perpendicular to the front-rear direction X (perpendicular to the paper surface) is referred to as a device width direction Y (see FIG. 7).

As shown in FIGS. 1 to 3, the soil sampling device 1 includes a sampling section 2, a container 3, and a transfer mechanism 4. As shown in FIGS.
The sampling unit 2 is a part that is provided in an agricultural machine 5 that moves in a field and samples soil. The agricultural machine 5 is a machine for performing farm work while moving in the field. Agricultural machine 5 is attached to the rear of tractor 6 and moves with tractor 6 . The tractor 6 has a driver's seat 7, and the front side of the driver sitting on the driver's seat 7 is the front. In the case of this embodiment, the agricultural machine 5 is a rotary tiller for tilling fields. Although the agricultural machine 5 is not limited to a rotary tiller, the following description assumes that the agricultural machine 5 is a rotary tiller 5 .

FIG. 4 shows an example of the rotary tiller 5. As shown in FIG. However, the rotary tiller 5 is not limited to that shown in FIG. For example, although the rotary tiller 5 shown in FIG. 4 is of the side drive type, the rotary tiller 5 may be of the center drive type.
As shown in FIG. 1, the rotary tiller 5 is attached to the rear portion of the tractor 6 via a link mechanism 8 so as to be able to move up and down. The rotary tiller 5 has an input shaft 10 that receives power from a PTO shaft 9 projecting from the rear of the tractor 6 . The PTO shaft 9 and the input shaft 10 are connected by a universal joint (not shown).

Power input to the input shaft 10 is transmitted to the pawl shaft 12 via a power transmission mechanism such as a gear mechanism housed in the transmission case 11 . The pawl shaft 12 rotates around an axis extending in the width direction of the device. A tillage tine 13 is attached to the tine shaft 12 . The tillage tines 13 rotate in the arrow A1 direction together with the tine shaft 12 to rake up the soil rearward. A plowing section is constituted by the claw shaft 12 and the plowing tines 13 .

In the case of this embodiment, the harvesting section 2 is a plowing section. Therefore, in the following description, it is assumed that the harvesting unit 2 is the tilling unit 2 . The plowing section (collecting section) 2 collects soil by raking it up. As a result, the soil sampling device 1 can sample the soil stirred by the tilling unit 2 . However, the harvesting section 2 is not limited to the tilling section as long as it can rake up the soil and send it backward.

The upper part of the plowing section 2 is covered with an upper cover 14 . The rear part of the tilling section 2 is covered with a rear cover 15 . The sides (left and right sides) of the plowing section 2 are covered with side covers 16 .
The rear cover 15 has a rear cover body 17 and a flap cover 18 . The rear cover main body 17 is attached to the rear end of the upper cover 14 and covers the rear of the tillage tines 13 . The rear cover main body 17 can swing upward or downward with respect to the upper cover 14 . The rear cover main body 17 is biased downward by the spring force of the bullet lowering device 19 . The flap cover 18 is attached to the rear end of the rear cover body 17 . The flap cover 18 has a leveling portion 18a for leveling the ground by contacting the ground G1. The leveling portion 18a is formed in an arc shape that bulges downward when viewed from the side.

As shown in FIG. 2 , a first mounting portion 20 is provided on the rear surface of the rear cover main body 17 . A second mounting portion 21 that is detachable from the first mounting portion 20 is provided on the upper surface of the flap cover 18 . By attaching the second attachment portion 21 to the first attachment portion 20 , the flap cover 18 is detachably attached to the rear cover main body 17 . As shown in FIG. 4, the flap cover 18 is provided with an arm 22 and the rear cover main body 17 is provided with a lever 23 . By pushing down the lever 23 toward the arm 22 , the second mounting portion 21 is disengaged from the first mounting portion 20 and the flap cover 18 can be removed from the rear cover body 17 .

As shown in FIGS. 2 and 4, the rear cover 15 has a passage opening 15a through which the soil raked up by the plowing section 2 can pass. The passage opening 15 a is provided in the rear cover main body 17 . In the case of the present embodiment, the passage port 15a is an opening provided for attaching a ridge erector (cultivator). The passage opening 15a is closed by a cap 24 when the ridge riser is not used. In the case of this embodiment, the passage port 15a is provided in the center in the device width direction, but it may be provided on one side (left side) or the other side (right side) in the device width direction, or may be arranged side by side in the device width direction. Two or more may be provided. The passage port 15a is preferably used also as an opening for attaching the ridge-setting device, but may be provided separately from the opening for attaching the ridge-setting device. Further, the rear cover 15 does not have an opening for attaching a ridger, but may have a passage opening 15a.

As shown in FIG. 2, the soil sampling apparatus 1 includes a shutter device 25 capable of switching opening and closing of the passage port 15a. The shutter device 25 has a shielding plate 26 and a driving device 27 that drives the shielding plate 26 . The shielding plate 26 has an area capable of covering the passage opening 15a. The shielding plate 26 is arranged in front or behind (rear in the case of FIG. 2) of the passage opening 15a. The driving device 27 moves the shielding plate 26 between a position for shielding the passage opening 15a and a position for opening the passage opening 15a, as indicated by an arrow A2. In the case of this embodiment, the driving device 27 moves the shielding plate 26 between a lower position (virtual line position in FIG. 2) that shields the passage opening 15a and an upper position (solid line position in FIG. 2) that opens the passage opening 15a. Let The driving device 27 is composed of, for example, a motor and a transmission mechanism that converts the rotational power of the motor into power for reciprocating motion and transmits the power to the shielding plate 26 . The transmission mechanism is composed of, for example, a screw mechanism, a gear mechanism, or the like. However, the configuration of the driving device 27 is not limited to the configuration described above, and may be a device using an air cylinder, a hydraulic cylinder, or the like, for example.

As shown in FIG. 2 , the soil sampling device 1 includes a switch 28 for operating the shutter device 25 . The switch 28 can be arranged, for example, at a position (for example, in front of or on the side of the driver's seat 7) that can be operated by a driver seated in the driver's seat 7 of the tractor 6. However, the driving of the shutter device 25 may be performed automatically and intermittently according to a program stored in advance in a memory or a time interval set by a timer. Further, the shutter device 25 may be automatically and intermittently driven each time the tractor 6 travels a certain distance. Further, when the tractor 6 automatically travels along a preset travel route, the configuration may be such that the shutter device 25 is automatically driven at a predetermined specific position in the field.

When the passage opening 15a is closed by the shielding plate 26, the soil raked up by the tilling section 2 cannot pass through the passage opening 15a. When the shield plate 26 is moved upward to open the passage opening 15a, the soil raked up by the tilling section 2 can pass through the passage opening 15a.
However, the soil sampling device 1 may not include the shutter device 25 . In this case, since the passage opening 15a is not closed by the shield plate 26, the soil raked up by the tilling section 2 can pass through the passage opening 15a.

As shown in FIGS. 2 and 5, a discharge pipe 29 is connected to the passage port 15a. The discharge pipe 29 guides the soil collected by the collection unit 2 (soil raked up by the tillage unit 2 ) and discharges it toward the container 3 . As shown in FIGS. 2, 3 and 5, the discharge tube 29 has an inlet 29a and a discharge port 29b. The intake port 29a is provided on the front side (the side of the collection unit 2) and is connected to the passage port 15a. The discharge port 29b is provided on the rear side (container 3 side) and opens toward a receiving position P1 (see FIGS. 7 and 8), which will be described later. The intake port 29a opens forward, and the discharge port 29b opens downward. A pipeline connecting the intake port 29a and the discharge port 29b is curved so as to gradually descend from the front to the rear. The positions of the intake port 29a and the discharge port 29b in the device width direction correspond to the positions of the passage port 15a. In the case of this embodiment, since the passage port 15a is provided at the center in the device width direction, the intake port 29a and the discharge port 29b are arranged at the center in the device width direction.

The container 3 can contain the soil collected by the collecting unit 2 (soil raked up by the tilling unit 2). Container 3 includes a plurality of containers. As shown in FIG. 6 , the plurality of containers 3 are accommodated in a plurality of accommodating portions 33 (described later) of a carriage 31 that constitutes the transfer mechanism 4 . The number of containers 3 is not particularly limited, but is at least 2 or more, preferably 5 or more, and more preferably 10 or more. In the case of this embodiment, the number of containers 3 is ten. The container 3 has a bottom surface and side surfaces, and an open top surface. The container 3 is transferred by the transfer mechanism 4 .

The transfer mechanism 4 is a mechanism that transfers the container 3 along the width direction of the rear cover 15 (apparatus width direction Y). As shown in FIGS. 3 and 7 , the transfer mechanism 4 has a track section 30 , a carriage 31 and a driving section 32 .
As shown in FIG. 7, the track portion 30 extends along the width direction of the rear cover 15 (device width direction). As shown in FIG. 3, the track portion 30 is composed of a pair of rails 30F and 30R. The pair of rails 30F and 30R are arranged parallel to each other with a space therebetween in the front-rear direction. The track portion 30 is provided over at least half or more of the full width of the rear cover 15 . The extending direction of the rails 30F and 30R (orbital portion 30) is the transport direction of the container 3. As shown in FIG. Of the pair of rails 30F and 30R, one rail 30F is formed to have a U-shaped cross section, and the other rail 30R is formed to have an inverted U-shaped cross section.

As shown in FIG. 6, the carriage 31 has a plurality of storage units 33 that store the containers 3 in a detachable manner. The plurality of housing portions 33 are arranged side by side in the width direction of the rear cover 15 (device width direction). The number of storage units 33 is set equal to or greater than the number of containers 3 . The plurality of housing portions 33 are separated by partition walls 34 . As shown in FIG. 3, the housing portion 33 has a bottom plate 33a and a vertical plate 33b erected from the peripheral edge of the bottom plate 33a. The storage part 33 has an open upper part, and the container 3 can be stored or taken out from the upper part. When the container 3 is accommodated in the accommodation portion 33, the vertical plate 33 and the partition wall 34 of the accommodation portion 33 cover the periphery (front, rear, left, and right) of the container 3, but do not cover the upper portion thereof. As shown in FIGS. 6 and 7 , the plurality of containers 3 are accommodated one by one in the plurality of accommodating portions 33 . Thereby, the plurality of containers 3 are arranged side by side along the width direction of the rear cover 15 (device width direction).

As shown in FIG. 3 , the truck 31 has a plurality of wheels 35 . The wheels 35 are composed of a pair of wheels 35F and 35R. A pair of wheels 35F and 35R are rotatably attached to the housing portion 33 . In the case of this embodiment, the wheels 35F and 35R are configured by bearings. The wheels 35F and 35R are rotatably supported by support shafts 36 projecting forward and backward from the housing portion 33, respectively. Wheels 35</b>F are attached to the front side of housing portion 33 . The wheels 35R are attached to the rear side of the housing portion 33. As shown in FIG.

The wheels 35F are placed on the rails 30F and roll on the rails 30F. The wheels 35R are placed on the rails 30R and roll on the rails 30R. Wheels 35F and 35R roll on rails 30F and 30R, so that carriage 31 can move along track portion 30. As shown in FIG.
In addition, the configuration that allows the carriage 31 to move along the track portion 30 is not limited to the illustrated configuration, and may be another configuration. For example, instead of the wheels 35F and 35R, the carriage 31 may be provided with sliders that can slide along the rails 30F and 30R.

The drive unit 32 moves the carriage 31 . As shown in FIGS. 3 and 8 , the driving section 32 has a motor 37 and a power transmission mechanism 38 that transmits the driving force of the motor 37 to the carriage 31 . The power transmission mechanism 38 has a first gear 39 , a second gear 40 , a third gear 41 and a rack 42 . The first gear 39 is attached to the drive shaft of the motor 37 . The second gear 40 is a reduction gear having more teeth than the first gear 39 and meshes with the first gear 39 . The third gear 41 is mounted coaxially with the second gear 40 . The third gear 41 is connected to the second gear 4
A gear (pinion) with fewer than zero teeth. The rack 42 meshes with the third gear 41 .

As shown in FIGS. 6 and 8, a large number of teeth of the rack 42 are arranged in a row along the width direction of the apparatus facing upward. The rack 42 is attached to the carriage 31 . The rack 42 is provided across the plurality of housing portions 33 of the carriage 31 . As shown in FIG. 6, one end portion of the rack 42 in the lengthwise direction (tooth arrangement direction) is located on one side (left side) of the accommodating portion 33A located on the most one side (left side) of the plurality of accommodating portions 33. placed protruding. The other end in the length direction of the rack 42 is arranged at a position corresponding to the accommodation portion 33C adjacent to the accommodation portion 33B on the othermost side (right side) of the plurality of accommodation portions 33 . In other words, the rack 42 is shifted to one side (left side) in the device width direction with respect to the carriage 31 .

When the drive shaft of the motor 37 rotates, the first gear 39 rotates. As the first gear 39 rotates, the second gear 40 and the third gear 41 rotate. When the third gear 41 rotates, the rack 42 moves along the width direction of the rear cover 15 (device width direction). As a result, the carriage 31 moves along the track portion 30 and the container 3 is transferred along the width direction of the rear cover 15 . The operation of driving and stopping the motor 37 can be performed, for example, by the driver of the tractor 6 turning on/off a switch (not shown).

In the case of this embodiment, the direction of transfer of the container 3 during the soil sampling work is the direction from the right side to the left side (see arrow A3 in FIG. 7), and the left side will be described as the forward direction of transfer. Therefore, the rack 42 is shifted forward in the transfer direction with respect to the carriage 31 . However, the transfer direction of the container 3 may be from the left side to the right side.
Further, in the case of the present embodiment, the transfer route of the carriage 31 by the track portion 30 is configured as one linear route extending along the width direction of the rear cover 15, but is not limited to this. For example, the transport path may be configured as a plurality of parallel linear paths extending along the width direction of the rear cover 15 . In this case, for example, the track section 30 can be configured by a plurality of pairs of rails parallel to each other, and the carriage 31 can be placed on each pair of rails. Further, the transport path may be configured in a loop shape, or may include a transport path extending in the width direction of the rear cover 15 and a continuous transport path in the vertical direction.

As shown in FIGS. 3 and 7, the container 3 and transfer mechanism 4 are provided on the rear cover 15 . Specifically, the container 3 and transfer mechanism 4 are provided on the flap cover 18 . The track portion 30 is attached to the top surface of the leveling portion 18a of the flap cover 18 (the surface opposite to the leveling portion 18a). The carriage 31 is mounted on the track portion 30 and arranged above the flap cover 18 . As shown in FIG. 8 , the drive section 32 (motor 37 and power transmission mechanism 38 ) is attached to the rear cover 15 via an attachment member 43 . In the case of this embodiment, the driving part 32 is attached to the rear cover main body 17 , but may be attached to the flap cover 18 .

The transfer mechanism 4 sequentially transfers a predetermined number of containers 3 (in this embodiment, one by one) to a receiving position P1 where the soil collected by the collecting unit 2 can be received. The receiving position P1 is a position where the container 3 can receive the soil discharged from the discharge port 29b. Specifically, the receiving position P1 is a position where the discharge port 29b of the discharge pipe 29 is open (see FIG. 8). In the case of this embodiment, the discharge port 29b is arranged at the center in the width direction of the device, so the receiving position P1 is located at the center in the width direction of the device.

As shown in FIGS. 3, 7, 8, etc., the upper portions of the plurality of containers 3 are covered with lids 44. As shown in FIG. The lid 44 is attached to the rear cover 15 . Specifically, the lid body 44 is attached to the first attachment portion 20 of the flap cover 18 via a bracket 45 and bolts B1. The lid body 44 extends in the width direction of the device and is provided over the entire width of the rear cover 15 . The lid 44 has an opening 44a that opens only the top of the container 3 at the receiving position P1. The lid 44 is provided to prevent the soil contained in the container 3 from spilling from the top of the container 3 . By covering the top of the container 3 with the lid 44, soil can be prevented from spilling when the rotary tiller 5 is lifted relative to the tractor 6, for example. The opening 44a is a hole through which soil passes when the container 3 receives soil at the receiving position P1. The lid 44 is detachable, and is removed when the container 3 is put into or taken out of the housing portion 33 .

The action (operation) of the soil sampling device 1 according to the present invention will be described below.
As shown in FIG. 7, in the initial state (the state before soil is collected), the carriage 31 is positioned rearward (toward the right) of the track portion 30 in the transfer direction. At this time, the container 3D positioned furthest forward in the transfer direction among the plurality of containers 3 is at the receiving position P1. In this state, when the collecting part 2 is driven to open the passage port 15a, the soil S1 raked up by the tillage tines 13 is introduced into the discharge pipe 29 through the passage port 15a (see FIG. 5). The soil S1 introduced into the discharge pipe 29 is discharged through the discharge port 29b, passes through the opening 44a (see FIG. 8) of the lid 44, and is stored in the container 3D at the receiving position P1 ( See Figure 9).

When the soil is stored in the container 3D positioned furthest forward in the transfer direction, the shutter device 25 is driven to close the passage port 15a. Further, the motor 37 is driven to move the carriage 31 forward along the track portion 30 in the transfer direction, thereby moving the container 3E adjacent to the container 3D among the plurality of containers 3 to the receiving position P1 (see FIG. 10). After the tractor 6 is driven to move to the next collection position, the passage port 15a is opened by the shutter device 25, and the soil that has passed through the passage port 15a passes through the discharge pipe 29 and into the container 3E at the receiving position P1. be accommodated.

By repeating the above-described operation until the container 3F positioned farthest to the rear (right side) in the transfer direction contains the soil, all the containers 3 are filled with the soil (see FIG. 11). After the soil is stored in all the containers 3, the soil sampling operation is completed by removing the containers 3 from the storage portion 33 of the carriage 31. FIG. If the required number of samples of soil is smaller than the number of containers 3, the containers 3 can be removed from the container 33 of the carriage 31 after the soil is stored in the containers 3 corresponding to the number of samples. Moreover, the timing of taking out the container 3 from the storage portion 33 of the carriage 31 is arbitrary, and for example, the container 3 may be taken out from the storage portion 33 each time soil is stored in one container 3 .

The soil sampling device 1 of the above embodiment has the following effects.
A soil sampling apparatus 1 includes a sampling unit 2 provided in an agricultural machine 5 moving in a field to sample soil, a plurality of containers 3 capable of containing the soil sampled by the sampling unit 2, and a plurality of containers 3. A transfer mechanism 4 for sequentially transferring a predetermined number of pieces of soil collected by the collecting unit 2 to a receiving position P1 capable of receiving the soil.

According to this configuration, the transfer mechanism 4 can sequentially transfer a predetermined number of the plurality of containers 3 to the receiving position P1 where the soil collected by the collecting unit 2 can be received. Therefore, the trouble of exchanging the container 3 can be saved, and the work of collecting soil into different containers at different locations can be efficiently performed.
Further, the transfer mechanism 4 has a track portion 30 extending in the transfer direction of the containers 3 and a plurality of storage portions 33 for removably storing the containers 3 , and a carriage 31 movable along the track portion 30 . and a drive unit 32 for moving the carriage 31 .

According to this configuration, the plurality of containers 3 can be moved along the track portion 30 while being accommodated in the accommodation portion 33 of the carriage 31. Therefore, the plurality of containers 3 can be reliably and smoothly moved in a predetermined direction. can be moved.
The harvesting unit 2 is a tilling unit 2 having tillage tines 13 for raking up the soil, and a rear cover 15 is provided behind the tilling unit 2 to cover the rear of the tilling unit 2. The container 3 and the transfer mechanism 4 is provided on the rear cover 15 .

According to this configuration, since the soil stirred by the tillage unit 2 can be collected, it is possible to uniformly collect the soil at sub-required positions. In addition, since the container 3 and the transfer mechanism 4 are provided on the rear cover 15, there is no need to separately secure a space for providing the container 3 and the transfer mechanism 4, and an increase in the size of the soil sampling device 1 can be avoided. can be done.
Further, the transfer mechanism 4 transfers the container 3 along the width direction of the rear cover 15 .

According to this configuration, it is possible to secure a long transport path for the container 3 . Therefore, the soil can be stored in a large number of containers 3 and transferred, and the soil can be efficiently collected at a plurality of different locations.
The rear cover 15 has a rear cover main body 17 covering the rear of the tillage tines 13 and a flap cover 18 attached to the rear end of the rear cover main body 17. The transfer mechanism 4 and the container 3 are mounted on the flap cover 18. is provided in

According to this configuration, a large space for installing the transfer mechanism 4 and the container 3 can be secured, and the transfer mechanism 4 and the container 3 can be stably supported on the flap cover 18 .
The soil sampling apparatus 1 also includes a discharge pipe 29 that guides the soil collected by the sampling unit 2 and discharges it toward the container 3. The discharge pipe 29 has an intake port 29a provided on the side of the sampling unit 2. and a discharge port 29b that is provided on the container 3 side and opens toward the receiving position P1.

According to this configuration, the soil collected by the collecting unit 2 can be reliably guided to the container 3 by the discharge pipe 29, so that the collected soil can be stored in the container 3 efficiently.
Further, the rear cover 15 has a passage port 15a through which the soil raked up by the plowing section 2 can pass, and the intake port 29a of the discharge pipe 29 is connected to the passage port 15a.

According to this configuration, the soil raked up by the plowing section 2 can be guided to the discharge pipe 29 through the passage port 15a. Therefore, an appropriate amount of soil that can pass through the passage port 15 a can be guided to the discharge pipe 29 .
It also has a shutter device 25 capable of switching between opening and closing of the passage port 15a.
According to this configuration, it is possible to open the passage opening 15a to collect soil at a location where soil collection is required, and to close the passage opening 15a to not collect soil at a location where soil collection is unnecessary. Therefore, it is possible to efficiently collect soil at a plurality of different locations.

The soil sampling apparatus 1 also includes a lid 44 that covers the tops of the plurality of containers 3, and the lid 44 has an opening 44a that opens only the top of the container 3 at the receiving position P1.
This configuration can prevent the soil from spilling out of the container 3 . Also, at the receiving position P1, the soil can be received in the container 3 through the opening 44a, and soil can be prevented from entering a container that is not at the receiving position P1.

Although one embodiment of the present invention has been described above, it should be considered that the embodiment disclosed this time is illustrative in all respects and is not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

1 Soil sampling device 2 Sampling part (plowing part)
3 container 4 transfer mechanism 5 agricultural machine (rotary tiller)
13 Tillage tine 15 Rear cover 15a Passing port 17 Rear cover main body 18 Flap cover 25 Shutter device 29 Discharge pipe 29a Intake port 29b Discharge port 30 Track portion 31 Truck 32 Drive portion 33 Storage portion 44 Lid 44a Opening P1 Receiving position

Claims (8)

a sampling unit that is provided in an agricultural machine that moves through a field and samples soil;
a plurality of containers capable of containing the soil collected by the collecting unit;
a transfer mechanism for sequentially transferring a predetermined number of the plurality of containers to a receiving position capable of receiving the soil collected by the collecting unit;
with
The harvesting section is a tillage section having a tillage claw that rakes up the soil,
A rear cover is provided behind the tillage unit to cover the rear of the tillage unit,
The soil sampling device , wherein the container and the transfer mechanism are provided on the rear cover . The transfer mechanism is
a track portion extending in the transport direction of the container;
a carriage that has a plurality of storage units that removably store the container and that is movable along the track unit;
a driving unit for moving the carriage;
The soil sampling device of claim 1, comprising: The soil sampling device according to claim 1 or 2 , wherein the transfer mechanism transfers the container along the width direction of the rear cover. The rear cover has a rear cover body covering the rear of the tillage tines, and a flap cover attached to the rear end of the rear cover body,
The soil sampling device according to any one of claims 1 to 3, wherein the transfer mechanism and the container are provided on the flap cover. A discharge pipe that guides the soil collected by the collecting unit and discharges it toward the container,
5. The discharge pipe according to any one of claims 1 to 4, wherein the discharge pipe has an intake port provided on the collecting part side and a discharge port provided on the container side and opening toward the receiving position. The soil sampling device according to . The rear cover has a passage opening through which the soil raked up by the tilling section can pass,
6. The soil sampling device according to claim 5 , wherein the intake of said discharge pipe is connected to said passage. 7. A soil sampling apparatus according to claim 6 , further comprising a shutter device capable of switching opening and closing of said passage port. A lid covering the top of the plurality of containers,
The soil sampling device according to any one of claims 1 to 7 , wherein the lid body has an opening that opens only the upper part of the container at the receiving position.

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