Earthing-up body and agricultural work machine with earthing-up body

Abstract

To provide an earthing-up plate related to an agricultural work machine capable of leveling a field surface by returning a proper amount of soil to travel marks.SOLUTION: An earthing-up body M comprises: an earthing-up plate 42 that moves soil to a travel mark A formed by a traveling machine body 1; a pivot 61 to which the earthing-up plate 42 is attached; a holding member 66 that rotatably holds the pivot 61 to one side and the other side in a horizontal direction; and an operation pin 73 that can project and retreat in a direction intersecting an axial direction of the pivot 61. The holding member 66 comprises: a first lock part 78 that inhibits rotation to one side of the earthing-up plate 42 by having the operation pin 73 projected and locked, and allows rotation to the one side of the earthing-up plate 42 by having retreated with the operation pin 73 retreated; and a second lock member 79 that inhibits rotation to the other side of the earthing-up plate 42 by having the operation pin 73 locked.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a soil mounding body and an agricultural working machine equipped with the soil mounding body. More specifically, the present invention relates to a soil mounding body of an agricultural working machine that uses a soil crushing section to level soil that has been roughly leveled in advance by the soil mounding body, and to an agricultural working machine equipped with the soil mounding body. [Background technology]

[0002] Patent Document 1 discloses an example of a work machine that performs tilling or plowing work to cultivate and level a field using tilling tines that are attached to a traveling machine body and driven to rotate. This invention is provided with a soil piling plate that piles soil into grooves formed in the field surface by tires or the like as the traveling machine body passes over. This soil piling plate is selectively detachable between a soil piling position and a storage position. Patent Document 2 discloses a configuration in which a soil-collecting plate is disposed at the tip of the cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-039089 A [Patent Document 2] JP 2018-196328 A Summary of the Invention [Problem to be solved by the invention]

[0004] The soil piling plate in Patent Document 1 is attached to the stand mounting base where the stand that supports the machine body is attached, so when attaching the stand to the machine body, the soil piling plate needs to be removed from the machine body. This can lead to the soil piling plate being lost or being attached to the wrong position. In addition, in the form of Patent Document 2, when the machine body is removed from the traveling machine body for storage, a stand may be attached to both ends of the machine body in the width direction relative to the traveling direction in order to stably support the machine body on the ground. The position of the soil piling plate and the mounting position of the stand may be close to each other, and the soil piling plate may get in the way when mounting the stand to the machine body, making it difficult to attach and detach the stand.

[0005] The present invention has been made with attention to the above-mentioned problems, and aims to provide a mounding body and agricultural machine that allows the position of the mounding body to be easily changed without having to be attached or detached, and that does not interfere with the attachment or detachment of other components. [Means for solving the problem]

[0006] The present invention relates to A soil-moving plate that moves soil to the travel mark formed by the traveling body; A pivot shaft for attaching the soil-retaining plate; A holding member that holds the pivot shaft rotatably to one side and the other side in a horizontal direction; an operation pin that can be extended and retracted in a direction intersecting an axial direction of the pivot shaft, The holding member includes a first locking portion that prevents the soil-collecting plate from rotating to one side by locking the operation pin protruding therefrom, and allows the soil-collecting plate to rotate to one side by locking the operation pin recessed therein; A mounding body comprising: relates to.

[0007] The present invention further comprises: The holding member has a second locking portion that prevents the soil-collecting plate from rotating to the other side by locking the operating pin, A mounding body comprising: relates to.

[0008] The present invention further comprises: an elastic member for the operation pin that biases the operation pin so as to protrude toward the first locking portion and the second locking portion; A mounding body comprising: relates to.

[0009] The present invention further comprises: The pivot shaft is rotatable integrally with the pivot shaft, and a stopper piece is capable of preventing the soil packing plate from rotating to one side and the other side; A mounding body comprising: relates to.

[0010] The present invention further comprises: The rotation prevention position of one side of the soil-collecting body by the stopper piece is a position different from the rotation prevention position that prevents the rotation of the soil-collecting plate to one side by the first engaging portion of the operating pin. A mound of earth, relates to.

[0011] The present invention further comprises: An elastic member that biases the soil-collecting plate to one side around the pivot shaft; A mounding body comprising: relates to.

[0012] The present invention relates to The present invention is provided with a soil crushing section which crushes soil as the traveling body advances, and a soil piling body which moves soil along a travel track formed by the traveling body between the soil crushing section and the traveling body, The soil-collecting body includes a soil-collecting plate that moves soil against the travel track formed by the traveling body, A pivot shaft for attaching the soil-retaining plate; A holding member that holds the pivot shaft rotatably to one side and the other side in a horizontal direction; an operation pin that can be extended and retracted in a direction intersecting an axial direction of the pivot shaft, The holding member includes a first locking portion that prevents the soil-collecting plate from rotating to one side by locking the operation pin protruding therefrom, and allows the soil-collecting plate to rotate to one side by locking the operation pin recessed therein; An agricultural machine comprising: relates to.

[0013] The present invention further comprises: The holding member has a second locking portion that prevents the soil-collecting plate from rotating to the other side by locking the operating pin, An agricultural machine comprising: relates to.

[0014] The present invention further comprises: an elastic member for the operation pin that biases the operation pin so as to protrude toward the first locking portion and the second locking portion; An agricultural machine comprising: relates to.

[0015] The present invention further comprises: The pivot shaft is rotatable integrally with the pivot shaft, and a stopper piece is capable of preventing the soil packing plate from rotating to one side and the other side; An agricultural machine comprising: relates to.

[0016] The present invention further comprises: The rotation prevention position of one side of the soil-collecting body by the stopper piece is a position different from the rotation prevention position that prevents the rotation of the soil-collecting plate to one side by the first engaging portion of the operating pin. An agricultural machine characterized by: relates to.

[0017] The present invention further comprises: An elastic member that biases the soil-collecting plate to one side around the pivot shaft; An agricultural machine comprising: relates to. Effect of the Invention

[0018] To provide a soil mounding body and an agricultural work machine in which the position of the soil mounding body can be easily changed without detaching the soil mounding body and which does not interfere with the attachment and detachment of other members. [Brief description of the drawings]

[0019] [Figure 1]1 is a front view of an agricultural work machine according to a first embodiment of the present invention, showing the entire agricultural work machine with the extended work body in an unfolded state. [Diagram 2] 1 is a side view of an agricultural work machine according to a first embodiment of the present invention, showing the entire agricultural work machine with the extended work body in an unfolded state. [Diagram 3] 1 is a plan view of an agricultural work machine according to a first embodiment of the present invention, showing the entire agricultural work machine with the extended work body in an unfolded state. [Figure 4] BRIEF DESCRIPTION OF THE DRAWINGS It is an enlarged side view of a main part of the agricultural work machine according to the 1st embodiment of this invention. It is a side view of the mound body located on the left side of the traveling direction as viewed from the right side of the traveling direction. [Diagram 5] 1 is a front view of a main portion of an agricultural machine according to a first embodiment of the present invention, showing a state in which a soil mounding body is in a reference position. [Figure 6] Fig. 2 is a cross-sectional view of the agricultural work machine according to the first embodiment of the present invention, and a front view in cross section of a holding member and a rotating shaft of a mounding body arranged on the left side in the traveling direction, showing the state when the machine is in a reference state. [Figure 7] 1 is a plan view of a main portion of an agricultural work machine according to a first embodiment of the present invention, showing a state where a mounding body is in a reference position. [Figure 8] Fig. 2 is a cross-sectional view of a main part of the agricultural machine according to the first embodiment of the present invention. Fig. 3 is a cross-sectional plan view showing an operation pin portion when the mounding body is in a reference position. [Figure 9] Fig. 2 is a sectional view of a main part of an agricultural work machine according to a first embodiment of the present invention. Fig. 3 is a sectional plan view showing a stopper piece when a soil mounding body is in a reference position. [Figure 10] 1 is a plan view of the main part of an agricultural work machine according to a first embodiment of the present invention, showing a state where the soil piling body is in a swing position. In the figure, the two-dot chain line shows the position of the soil piling plate when it is in a reference position. [Figure 11] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a main part of an agricultural machine according to a first embodiment of the present invention Fig. 2 is a cross-sectional plan view showing an operation pin portion when the soil mounding body is in a swing position. [Figure 12] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a main part of an agricultural machine according to a first embodiment of the present invention Fig. 2 is a cross-sectional plan view showing a stopper piece when a soil mound body is in a swing position. [Figure 13] 1 is a plan view of a main portion of an agricultural work machine according to a first embodiment of the present invention, showing a state in which the soil mound is in a stored position. [Figure 14] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a main part of an agricultural machine according to a first embodiment of the present invention Fig. 2 is a cross-sectional plan view showing an operation pin portion when the soil mounding body is in a stored position. [Figure 15] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of a main part of an agricultural machine according to a first embodiment of the present invention Fig. 2 is a sectional plan view showing a stopper piece when the soil mounding body is in a stored position. [Figure 16] 1 is a side view of a soil mound disposed on the left side in the traveling direction of an agricultural work machine according to a second embodiment of the present invention, as viewed from the right side in the traveling direction. A first locking hole (part) and a second locking hole (part) are provided in the collar. [Figure 17] 13 is a front view of an agricultural work machine according to a second embodiment of the present invention, with the rotating shaft being cut away, showing the time when the machine is in the reference position. [Figure 18] This is a side view of the mounding body arranged on the left side of the agricultural work machine in the direction of travel according to the second embodiment of the present invention, as seen from the right side of the direction of travel. A first locking hole (part) and a second locking hole (part) are provided in the collar. This is an example in which the first locking hole (part) and the second locking hole (part) are at different heights. [Figure 19] 13 is a front view in section of the pivot shaft of an agricultural work machine according to a second embodiment of the present invention, showing the time when the machine is in the reference position, and an example in which the heights of the first locking hole (portion) and the second locking hole (portion) are different from each other. [Figure 20] FIG. 1 is a plan sectional view of an agricultural work machine according to a second embodiment of the present invention. This is an example in which a first locking hole (part) and a second locking hole (part) are provided in the collar. This shows the mounding body when a fixing member is inserted into the first locking hole (part), which serves as the reference position. This shows a case in which the first locking hole (part) and the second locking hole (part) are at the same height. [Figure 21] FIG. 1 is a plan sectional view of an agricultural work machine according to a second embodiment of the present invention. This is an example in which a first locking hole (part) and a second locking hole (part) are provided in the collar. This shows the mounding body when a fixing member is inserted into the second locking hole (part), which is the storage position. This shows a case in which the first locking hole (part) and the second locking hole (part) are at the same height. [Figure 22]1 is a plan sectional view of an agricultural work machine according to a second embodiment of the present invention. This is an example in which a first locking hole (portion) and a second locking hole (portion) are provided in a collar of a rotating shaft. The figure shows the mounding body when a fixing member is inserted into the first locking hole (portion) which is the reference position. [Figure 23] 1 is a plan sectional view of an agricultural work machine according to a second embodiment of the present invention. This is an example in which a first locking hole (portion) and a second locking hole (portion) are provided in the collar. The figure shows the mound when the fixing member is inserted into the second locking hole (portion) that is the storage position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] An agricultural machine 1 according to a first embodiment of the present invention will be described with reference to the drawings. An overview of the first embodiment of the present invention will now be described. In the first embodiment of the present invention, an agricultural work machine 1 for plowing paddy fields is provided with a soil piling plate 42. The agricultural work machine 1 is disposed behind a traveling machine body such as a tractor, and crushes soil clods using a soil crushing unit 3 shown in Figures 1 and 2 that the agricultural work machine 1 is equipped with. A soil leveling unit consisting of a soil leveling body 5 is disposed behind the soil crushing unit 3 to level the soil. A soil piling plate shown in Figures 1 and 2 is disposed in front of the soil crushing unit 3.

[0021] As shown in Fig. 3, in plan view, the soil piling plate 42 is positioned from the boundary of the travel track (wheel rut) A formed by the traveling body to the outside. In plan view, the soil piling plate 42 is tilted backward as it approaches the travel track A, and moves soil that collides with the soil piling plate as it progresses toward the travel track A. By moving the soil, the soil before it is crushed in the soil crushing section 3 can be roughly leveled, allowing for proper soil crushing and subsequent leveling to be performed with greater precision.

[0022] The travel mark A described in this application refers to the ruts formed in the form of concave lines in the direction of travel by compacting the soil with the traveling part of the traveling body, or the ruts formed in the form of concave lines in the direction of travel by pushing aside the soil with the traveling part of the traveling body. Also, the boundary refers to the boundary in the width direction that intersects with the direction of travel between the travel mark A formed by the traveling body and the other part. The inside of the track A refers to the side toward the center of the concave streak-like track, and the outside of the track A refers to the side away from the track in the width direction that intersects with the direction of travel, that is, the side different from the track. Note that the soil mentioned in the examples is soil that contains a large amount of water, and is also called mud.

[0023] Track A is formed by the passage of the traveling vehicle. The soil that was originally in the part of the travelling track A remains in a denser state by integrating with the soil that was originally present in the part beside the formed travelling track A, and the other part of the moving soil is pushed upward by the existing soil and may rise above the soil reference level. This raised soil forms an embankment. The shape of the embankment and the travelling track A formed by this traveling vehicle differs depending on the configuration of the running parts such as the wheels and tracks of the traveling vehicle, the traveling speed of the traveling vehicle, etc. The reference level mentioned in the explanation refers to a virtual horizontal plane that indicates the average height of the soil surface with unevenness, or the water surface that appears in soil containing a large amount of water. Soil flows are formed when a forward moving soil mulch board captures soil that is moving relatively from the front of the mulch board and forcibly changes the direction of soil movement. Soil flows consist of soil flows that are captured by the front of the mulch board and forcibly change course at the front surface of the mulch board, and soil flows that are formed when soil is not captured by the front of the mulch board and passes through the mulch board. The latter type of soil flow may form a path that wraps around the rear surface of the mulch board. The path formed by this soil path is called the passing path.

[0024] Explain about embankments. For example, when the traveling vehicle passes at high speed, the embankment is low in height but scattered over a wide area from the travel track A to the left and right of the traveling direction. Conversely, when the traveling vehicle passes at low speed, the embankment may be scattered over a smaller area but may be high in height. Also, while low clay soil is less likely to cause embankments due to the soil flowing on its own, high clay soil tends to cause high and large embankments. The soil piling board of the present invention can properly level the travel track A and embankments generated in such soil with various conditions, improving the accuracy of the subsequent processes of crushing and leveling. In addition to cases where embankments are formed by the passage of the traveling vehicle, there are also cases where the embankments are already formed as if they were raised before the traveling vehicle passed over. There are two types of embankments: embankments that are formed by the passage of the traveling vehicle and embankments that have already been formed as if they were raised.

[0025] 1 is an agricultural machine. A central working body 11 is located in the center of the agricultural work machine 1 and performs plowing work. The left extension working body 11L is located on the left side of the central working body 11 in the traveling direction, and is foldably attached to the central working body 11 to perform plowing work. The right extension working body 11R is located on the right side of the central working body 11 in the traveling direction, can be folded up with the central working body 11, and performs plowing work.

[0026] Reference numeral 2 denotes a frame. The frame 2 has a pipe frame 22. The pipe frame 22 is a frame that forms the skeleton of the agricultural work machine 1, and has a longitudinal direction in the left-right direction relative to the traveling direction. has. Reference numeral 20 denotes a mounting portion. Reference numeral 201 denotes a top link pin. Reference numeral 202 denotes a lower link pin. The mounting portion 20 has the top link pin 201 and the lower link pin 202. These are used to attach the mounting part 20 to a tractor that tows the agricultural work machine 1.

[0027] Reference numeral 21 denotes an input case and 211 denotes an input shaft. The input shaft 211 is attached to the input case 21 and connected to a PTO shaft of a tractor to take out the driving force of the tractor. The input case 21 is disposed in the center of the pipe frame 22 in the longitudinal direction. A top mast 212 is provided on the pipe frame 22. The top mast 212 has a top link pin 201 at its tip. Reference numeral 213 denotes a lower plate. The lower plate 213 is attached to the pipe frame 22. A lower link pin 202 is attached to the tip of the lower plate 213. A transmission case 23 is provided at the end of the pipe frame 22, and receives driving force from an input shaft 211 provided in the input case 21 and outputs the driving force to the soil crushing unit 3 described below.

[0028] Reference numeral 24 denotes support frames. The support frames 24 are provided at both ends of the pipe frame 22 in positions symmetrical with respect to the input case 21, and hold a rotor shaft 31 (described below) below the pipe frame 22. The transmission case 23 is provided adjacent to either the right or left support frame 24, and in the first embodiment, it is attached to the support frame 24 on the left side in the traveling direction. Numeral 25 denotes a fulcrum part. The fulcrum parts 25 are provided at both ends of the pipe frame 22, respectively, and serve as folding and rotating fulcrum parts for the left extension working body 11L and the right extension working body 11R. A left fulcrum frame 41L protruding upward from a left cover body 4L provided on the left extension working body 11L is rotatably connected to one fulcrum part 25, and a right fulcrum frame 41R protruding upward from a right cover body 4R provided on the right extension working body 11R is rotatably connected to the other fulcrum part 25.

[0029] The soil crushing unit 3 is located behind the traveling body and crushes the soil by rotating. The soil crushing unit 3 is provided below the frame 2 and can be rotated to crush the soil in the field. The soil crushing unit 3 is provided on the agricultural work machine 1 attached to the rear of a traveling machine body such as a tractor, and is located at the rear of the traveling machine body. As the traveling machine body such as a tractor advances, the tilling tines 32 provided on the soil crushing unit 3 are rotated to crush the soil. 3L is the left extension soil crushing section. The left extension soil crushing section 3L is rotatably attached to the left extension working body 11L on the left side of the soil crushing section 3 in the traveling direction, and can be folded together with the left extension working body 11L. 3R is the right extension soil crushing section. The right extension soil crushing section 3R is rotatably attached to the right extension working body 11R on the right side of the soil crushing section 3 in the traveling direction, and can be folded together with the right extension working body 11R.

[0030] A rotor shaft 31 is a rotating shaft that is hung between the lower parts of the transmission case 23 and the support frame 24, and is rotated by the driving force from the transmission case 23. Reference numeral 31L denotes a left extension-side rotor shaft. The left extension-side rotor shaft 31L is provided on the left side in the traveling direction of the rotor shaft 31. Reference numeral 31R denotes a right extension-side rotor shaft. The right extension-side rotor shaft 31R is provided on the right side in the traveling direction of the rotor shaft 31. The left extension-side rotor shaft 31L and the right extension-side rotor shaft 31R are connected to the rotor shaft 31 and rotated by the driving force from the transmission case 23.

[0031] A plurality of tillage tines 32 are attached around the rotor shaft 31, the left extension rotor shaft 31L, and the right extension rotor shaft 31R, and are driven by the rotation of the rotor shaft 31, the left extension rotor shaft 31L, and the right extension rotor shaft 31R to till the field. A dog clutch 33 is provided near the transmission case 23 and the support frame 24 at both ends of the soil crushing unit 3. The dog clutch turns on and off the rotational drive of the rotor shaft 31, the left extension rotor shaft 31L, and the right extension rotor shaft 31R.

[0032] Reference numeral 4 denotes a cover body. The cover body 4 covers the upper part of the soil crushing section 3. 4L denotes a left cover body. 4R denotes a right cover body. The left cover body 4L covers the upper part of the left extended soil crushing section 3L. The right cover body 4R covers the upper part of the right extended soil crushing section 3R. The cover body 4, the left cover body 4L, and the right cover body 4R prevent the soil crushed or tilled by the soil crushing section 3, the left extended soil crushing section 3L, and the right extended soil crushing section 3R from scattering to the surroundings. The left fulcrum frame 41L is a member that protrudes from the upper portion of the left cover body 4L for mounting the left extension working body 11L of the agricultural work machine 1 so as to be rotatable relative to the fulcrum part 25, and is an arm that is integrated with the left cover body 4L. The right fulcrum frame 41R is a member that protrudes from the upper part of the right cover body 4R for mounting the right extension working body 11R of the agricultural work machine 1 so as to be rotatable relative to the fulcrum part 25, and is an arm that is integrated with the right cover body 4R.

[0033] The soil piling plate 42 constituting the soil piling body M will be described. The soil piling plate 42 is provided on the agricultural work machine 1 that is located behind the traveling body and performs agricultural work, and is placed on the side of the traveling track A formed by the advancing traveling body to move soil toward the inside of the traveling track A. In the first embodiment, the soil-collecting plate 42 is located behind the traveling body and in front of the soil crushing unit 3 which is driven to rotate and crush the soil.

[0034] The soil piling plate 42 is located in front of the soil crushing section 3 and below the cover body 4, and the surface located on one side of the width of a rut formed in the field by the agricultural work machine 1 towed by the traveling vehicle body is inclined rearward as it moves inward relative to the vehicle body width. The soil piling plates 42 are installed in front of both ends of the soil crushing section 3 of the central working body 11 of the agricultural work machine 1. In the first embodiment, the soil piling plates 42 are provided in two places on the agricultural work machine 1 so as to correspond to each of the two travel tracks A formed side by side on the left and right behind the traveling body. More specifically, the soil piling plates 42 are positioned near the left boundary of one travel track A, the left travel track A, and near the right boundary of the other travel track A, the right travel track A. The soil-collecting board 42 is positioned slightly inward from the support frame 24 in the front view shown in FIG. 1 and the plan view shown in FIG.

[0035] The first pile-up plate 42 is arranged in a plan view with a tilt toward the rear as it approaches the travel track A. This causes the soil moving relatively from the front to move along the front surface of the first pile-up plate 42 from the outside to the inside of the travel track A.

[0036] Fig. 10 shows a front view of the main part of the agricultural work machine according to the first embodiment of the present invention. Fig. 10 also shows the state when the mounding body M is in the swing position, and the two-dot chain line in the figure shows the position of the mounding plate 42 in the reference position described below. In Fig. 10, the solid line shows the state in which the mounding plate 42 has rotated under the load of soil moving relatively from the front, and the first mounding plate 42 shown by the two-dot chain line is the position of the mounding plate 42 before it rotates under low load.

[0037] Fig. 7 shows a front view of the main part of the agricultural machine according to the first embodiment of the present invention, with the mounding body in the reference position. Fig. 7 is a cross-sectional view of the mounding plate 42 according to the first embodiment of the present invention, seen from a plane around the pivot shaft 61. Fig. 7 shows the state before the mounding plate 42 rotates under load. The reference position may also be called the reference state.

[0038] Fig. 8 is a sectional view of the essential parts of the agricultural machine according to the first embodiment of the present invention, and is a sectional plan view showing the operation pin when the mounding body is in the reference position. Fig. 8 is a sectional view of the mounding plate 42 according to the first embodiment of the present invention as seen from a plane around the pivot shaft 61.

[0039] Fig. 6 is a cross-sectional view of the agricultural work machine according to the first embodiment of the present invention, and is a front view of the holding member 66 of the mounding body arranged on the left side of the traveling direction and the rotating shaft 61, showing the reference state. Fig. 6 shows the state in which the mounding plate 42 is not receiving a load. The mechanism by which the mounding plate 42 rotates around the rotating shaft 61 under the load will be described later.

[0040] As shown in FIG. 3, the soil piling plate 42 is disposed near the boundary of the travel trace A when viewed from the traveling direction, and near the boundary of the travel trace A on the outer side in the width direction with respect to the traveling direction of the traveling machine body. The lateral end of the soil piling plate 42 on the outer side of the travel trace A is positioned on the forward direction side of the lateral end on the inner side of the travel trace A. That is, as shown in FIG. 3, the soil piling plate 42 in a plan view is disposed so as to incline backward as it approaches the inner side of the travel trace A. With this arrangement, the soil piling plate 42 is advanced, the soil moves relatively toward the soil piling plate 42, and when it reaches the soil piling plate 42, the direction of movement of the soil is changed so that the flow of the soil is directed along the surface of the soil piling plate 42. Then, this soil moves toward the inner side of the travel trace A along the surface of the soil piling plate 42, so that the soil can be replenished to the travel trace A.

[0041] The soil piling plate 42 will be described as being arranged near the boundary of the travel track A on the outside relative to the width of the traveling body in the traveling direction. In the first embodiment, the lateral end of the soil piling plate 42 on the inside of the travel track A is positioned on the inside of the boundary of the travel track A. By arranging it in this way, the soil moved by the soil piling plate 42 can be reliably replenished to the travel track A. Moreover, in the first embodiment, the soil piling plate 42 is arranged on the inside of the support frame 24 or the transmission case 23 of the central working body 11. By this arrangement, the travel track A to which the soil has been replenished is roughly leveled, and the soil crushing section 3 located at the rear of the soil piling plate 42 tills and crushes the soil, including the part where the travel track A was originally located. The front end of the soil-collecting plate 42 protrudes forward beyond the front end of the cover body 4 .

[0042] A soil leveling body 5 is attached to the rear of the cover body 4 when the agricultural work machine 1 is in operation. As the agricultural work machine 1 advances, the soil leveling body 5 is positioned behind the soil crushing section 3 and levels the field after soil crushing. 5L is a left ground leveling body. The left ground leveling body 5L is attached to the rear of the left cover body 4L and constitutes the left end portion in the direction of travel of the ground leveling body 5 during operation. The right ground leveling body 5R is attached to the rear of the right cover body 4R and constitutes the right end portion of the ground leveling body 5 in the direction of travel during operation.

[0043] 521 is a hinge. The hinge 521 is attached to the first leveling body 51, the left first leveling body 51L, and the right first leveling body 51R, which are the front parts of the leveling body 5, the left leveling body 5L, and the right leveling body 5R, as a pivot point for vertical rotation relative to the cover body 4, the left cover body 4L, and the right cover body 4R, via a fulcrum shaft fitted into the hinge 521.

[0044] A second ground leveling body 56 is provided. As shown in Fig. 2, which is a side view of the agricultural work machine 1, the second ground leveling body 56 levels the ground on the rear end side of the first ground leveling body 51 attached to the agricultural work machine 1. The left second ground leveling body 56L levels the rear of the left cover body 4L located on the left side in the traveling direction. The right second ground leveling body 56R levels the rear of the right cover body 4R located on the right side in the traveling direction.

[0045] 2 is a hinge. The hinge 522 is a pivot point provided at the rear end of the first ground leveling body 51, the left first ground leveling body 51L, and the right first ground leveling body 51R, respectively, and enables the second ground leveling body 56, the left second ground leveling body 56L, and the right second ground leveling body 56R to rotate up and down relative to the first ground leveling body 51, the left first ground leveling body 51L, and the right first ground leveling body 51R.

[0046] The soil piling body M, which is a piling plate 42, is disposed behind the traveling direction of the tractor, which is the traveling machine body, and in front of the traveling direction of the soil crushing unit 3, and is capable of moving soil to the traveling trace A formed by the tractor, thereby erasing the traveling trace A. The soil that has been roughly leveled in advance by the piling body M is crushed by the soil crushing unit 3, and the crushed soil can be leveled by the soil leveling body 5.

[0047] The mechanism for rotating the soil-collecting plate 42 will now be described. 61 is a pivot shaft. 62 is a boss. The pivot shaft 61 is provided on the inner diameter of the boss 62, and can move up and down in the axial direction and pivot around the axis. The pivot shaft 61 allows the soil piling plate 42, which is integrally provided on the front side of the pivot shaft 61, to pivot in an almost horizontal direction. The pivot shaft 61 allows the soil piling plate 42 to move up and down by the boss 62, and can fix the soil piling plate 42 at any position in the vertical direction. The pivot shaft 61 allows the soil piling plate 42 to be moved up and down by the boss 62, and can fix the soil piling plate 42 at any position in the vertical direction. The front projection area of ​​the soil piling plate 42 when viewed from the front in the traveling direction can be changed by pivoting the soil piling plate 42. In the first embodiment, the pivot shaft 61 and the boss 62 are located at the front of both end sides of the cover body 4.

[0048] The pivot point of the pile-up plate 42 in the width direction of the plate can be changed by selecting the mounting position in the left-right direction with respect to the traveling direction of the pivot shaft 61. The pile-up plate 42 pivots around the pivot shaft 61, so that the area of ​​both the left and right sides of the pile-up plate 42 sandwiched between the pivot shaft 61, that is, one side in the left-right width with respect to the traveling direction from the pivot shaft 61 and the other side in the left-right width with respect to the traveling direction from the pivot shaft 61, can be changed.

[0049] In the first embodiment of the present invention, a vertically disposed pivot shaft 61 is provided for pivoting the piling plate 42 in a substantially horizontal direction. The pivot shaft 61 is provided so that the soil moves relatively from the front of the piling plate 42 and pivots due to the load acting on the rear side when the soil reaches the piling plate 42. In the case of the first embodiment of the present invention, when the load increases, the end portion located on the front side of the soil piling plate 42 pivots so as to face rearward. Then, the soil piling plate 42 can change the angle at which the soil faces the travel path A in a plan view.

[0050] An elastic member 71 is provided on the stopper piece 68 and constantly urges the soil piling plate 42 to one side F1 about the pivot shaft 61. The elastic member 71 urges the soil piling plate 42, which can be pivoted by the pivot shaft 61, in one pivot direction. The elastic member 71 allows the mounding plate 42 to return to the standard position when the load applied by the soil during advancement is relieved after the mounding plate 42 has rotated toward the swinging position. Furthermore, when the restriction on rotation of the operating pin 73 relative to the first engaging portion 78 is removed, the mounding plate 42 can rotate while being biased by the elastic member 71 to the stored position. Therefore, the operator does not have to take the trouble of grasping and rotating the mounding plate 42. The detailed configuration of the operating pin 73 will be described later.

[0051] 5, 66 is a holding member that holds the pivot shaft 61 so as to be movable in the vertical direction. The holding members 66, 66 have a cylindrical portion that is arranged coaxially with the pivot shaft 61 so as to sandwich the boss 62 from above and below, and regulate the boss 62 from moving in the vertical direction of the pivot shaft 61 when fixed to the pivot shaft 61. The holding member 66 is attached and fixed to the cover body 4. 67 is a fixing member made of a bolt, and 68 is a stopper piece. The fixing member 67 is inserted through the boss 62 to fix and position the pivot shaft 61 in the vertical direction. In other words, the boss 62 is disposed between the holding members 66, 66, and the pivot shaft 61 is inserted through the boss 62. The fixing member 67 is inserted through the boss 62, and the vertical position of the boss 62 itself is fixed to the pivot shaft 61, and the vertical position of the pivot shaft 61 relative to the holding members 66, 66 is also fixed. Even if the vertical position is fixed, the rotating shaft 61 is configured to be able to rotate in the horizontal direction.

[0052] The pile-up plate 42 in the first embodiment of the present invention is provided so as to be rotatable within a set range in the horizontal direction by a vertical pivot shaft 61. When the load from the front increases, the pile-up plate 42 rotates so that the front projection area of ​​the pile-up plate 42 increases. Furthermore, the pile-up plate 42 is biased in the rotation direction by the elastic member 71, and rotates so that the forward projection area of ​​the pile-up plate 42 becomes smaller when the load becomes smaller. In other words, the elastic member 71 biases the pile-up plate 42 in the direction in which the forward projection area of ​​the pile-up plate 42 becomes smaller.

[0053] The pile-up plate 42, which is the pile-up body M, is fixed in front of the pivot 61, and the pivot 61 serves as the actual pivot 61 for the pile-up plate 42. The pivot 61 can slide vertically and pivot about its axis relative to the holding member 66. The pile-up plate 42 can be attached and detached by pulling the pivot 61 out of the holding member 66. The tubular portion of the holding member 66 arranged on the upper side is sometimes referred to as an upper collar 661, and the one arranged on the lower side is sometimes referred to as a lower collar 662. The vertical movement of the pivot shaft 61 can be restricted by passing the pivot shaft 61 through the upper collar 661 and the lower collar 662, and then selecting a plurality of holes that pass through the side surface of the pivot shaft 61 to determine the vertical position, and fixing the holes together with the boss 62 with the fixing member 67. Therefore, the vertical position of the mounding body M (mounding board 42) can be adjusted.

[0054] The elastic member 71 is positioned below the boss 62, between the top and bottom of the upper collar 661 and the lower collar 662. In the first embodiment, a coil spring is used for the elastic member 71. A stopper piece 68 is fixed below the boss 62. The elastic member 71 spans between the retaining member 66 having the lower collar 662 and the stopper piece 68. The elastic member 71 biases the mounding body M (mounding plate 42) to pivot to one side via the fixed member 67, the boss 62, and the pivot shaft 61. In the first embodiment, a coil spring is used, but a compression spring, a tension spring, or an elastic member 71 using fluid pressure arranged to rotate to one side may also be used. The stopper piece 68 comes into contact with the retaining member 66, thereby restricting the range of rotation around the rotation shaft 61. That is, the rotation of the boss 62 is restricted, and the rotation of the rotation shaft 61 fixed to the boss 62 by the fixing member 67 is also restricted, so that the rotation of the pile-up plate 42 is also restricted.

[0055] The soil piling body M according to the present invention has the same structure as the first soil piling plate 42 in Japanese Patent Application No. 2022-203191 "Soil piling plate and agricultural machine equipped with soil piling plate" and swings under load. In addition, the present invention provides a storage position that makes swinging impossible. In particular, the first engaging portion 78, the second engaging portion 79, the operating pin 73, and the stopper piece 68 have been added or modified.

[0056] The reference position, swing position, and storage position will now be described. (About the reference position) In this specification, as shown in Figs. 7, 8 and 9, the position where the operation pin 73 is locked by the first locking portion 78 in a plan view is referred to as the reference position. (Regarding swing position) In this specification, as shown in Figures 10, 11 and 12, the position in which the pivot shaft 61 rotates relative to a reference position and the tip side of the piler plate 42 moves rearward in a plan view is referred to as the swing position.

[0057] (Regarding storage location) In this specification, the storage position is defined as the position in which, in a plan view, the operating pin 73 is engaged with the second engagement portion 79 and the surface of the mounding plate 42 of the mounding body M is approximately parallel to the direction of travel, as shown in Figures 13, 14 and 15. It is freely rotatable between the reference position and the swing position, and is constantly biased by the elastic member 71 toward the reference position and further toward the storage position. The direction of rotation toward the storage position side is expressed as the direction of rotation toward one side F1, and the direction of rotation toward the swing position side is expressed as the direction of rotation toward the other side F2.

[0058] In the description of this invention, we will give detailed explanations about the mounding body M that is placed at the left end of the central working body 11 in the traveling direction, and that is placed on the left side of one of the travel tracks. If the mounding body M is placed in a symmetrical shape to that of the first embodiment described below in order to set the desired mounding direction, each position and direction will also be symmetrical.

[0059] The soil-collecting body M has at least the soil-collecting plate 42, the pivot shaft 61, the operation pin 73, the holding member 66, a first locking portion 78, and a second locking portion 79. It may further include a stopper piece 68, an elastic member 76 for the operation pin, and an elastic member 71.

[0060] The operation pin 73 will now be described. An operation pin 73, which is a rod-shaped member, is provided on the upper part of the cylindrical rotating shaft 61. As shown in Figures 5 and 6, the operation pin 73 is inserted into a through hole for the operation pin 73 that is provided on the upper part of the rotating shaft 61 so as to be perpendicular to the rotating shaft 61. The axial direction of the operation pin 73 is set so as to be perpendicular to the rotating shaft 61.

[0061] 6, one end of the operation pin 73 is formed in a stepped shape, with a small diameter portion 74 formed at the tip end and a large diameter portion 75 formed at the other end side, closer to the pivot shaft 61 than the small diameter portion 74, and having a larger diameter than the small diameter portion 74. The small diameter portion 74 and the large diameter portion 75 protrude laterally from the pivot shaft 61. The other end of the operation pin 73 is provided with a shaft portion that protrudes laterally from the pivot shaft 61. In the first embodiment, the diameter of the shaft portion on the other end of the operation pin 73 is set to be substantially the same as the small diameter portion 74. The through hole of the rotating shaft 61 has a hole diameter corresponding to the large diameter portion 75 and the shaft portion, and the operating pin 73 is allowed to slide.

[0062] The operation unit 72 will now be described. An operation unit 72 is provided on the other end side of the operation pin 73. In the first embodiment, the operation unit 72 is ring-shaped, and an operator grasps the operation unit 72 and pulls the operation pin 73 toward the other end, thereby allowing one end side of the operation pin 73 to protrude and retract relative to the rotating shaft 61. The operation unit 72 has a function to be grasped by the operator, and also serves as a stopper that prevents the operation pin 73 from moving toward the one end side and coming off the rotating shaft 61. Therefore, the operation unit 72 is not limited to being ring-shaped, and may be formed in any shape as long as it fulfills both the grasping function and the stopper function.

[0063] The elastic member 76 for the operation pin shown in FIG. 4 and FIG. 6 will be described. An elastic member 76 for the operation pin is disposed coaxially with the operation pin 73 and on the other end side of the large diameter portion 75 of the operation pin 73. The elastic member 76 for the operation pin is made of a compression spring, and one end is engaged with the large diameter portion 75 and the other end is engaged with the inner diameter of the rotating shaft 61. Therefore, the operation pin 73 is constantly urged toward the one end side.

[0064] The first locking portion 78 and the second locking portion 79 shown in Figs. 4, 6 and 8 will be described. Collars 661, 662, which are spaced apart vertically and hold the pivot shaft 61, are fixed by a holding member 66. A part of the holding member 66 located on the side of the upper collar 661 protrudes upward from the upper collar 661. A first locking portion 78 and a second locking portion 79 are positioned on this protruding portion so as to be able to come into contact with the operating pin 73.

[0065] The first locking portion 78 shown in Figs. 4 to 6, 8, 11, 13 and 14 will be described. The first locking portion 78 is prevented from rotating to one side F1, which is a right rotation in the plan view, by being locked by the operating pin 73. The position where rotation is prevented is called the reference position. In the first embodiment, the first locking portion 78 is formed by recessing the front edge of the protrusion toward the rear, and the large diameter portion 75 of the operating pin 73 locks into the first locking portion 78, thereby preventing rotation from the reference position to one side F1.

[0066] The piling plate 42 is permitted to rotate from the reference position toward the other side F2, which is a counterclockwise rotation in the plan view, and is freely rotatable within the range from the reference position to the swinging position. During operation, the piling plate 42 rotates appropriately in the range from the reference position to the swinging position according to the load, pushing soil into the travel trail and filling it in. The method for determining the range to the swinging position will be described later.

[0067] The second locking portion 79 will be described. As shown in Fig. 4, the second locking portion 79 is located rearward of the first locking portion 78. As shown in Fig. 14, the operating pin 73 is locked to the second locking portion 79, so that the piling plate 42 does not rotate toward the reference position or the swing position. As shown in Fig. 14, rotation toward the other side F2, which is a left rotation in the plan view, is prevented. As shown in Fig. 14, the position where the second locking portion 79 and the operating pin 73 are locked is called the stored position. In the first embodiment, the second locking portion 79 is formed in a hole shape, and the small diameter portion 74 of the operating pin 73 is locked in this hole, thereby preventing the soil-collecting plate 42 from rotating to the other side F2. Specifically, the protruding small diameter portion 74 is caught on the front side of the hole that forms the second locking portion 79, preventing the soil-collecting plate 42 from rotating to the reference position or the swing position.

[0068] Furthermore, the large diameter portion 75 protruding from the pivot shaft 61 comes into contact with the plate of the retaining member between the second engagement portion 79 and the first engagement portion 78 so as to be pressed by the elastic member 76 for the operating pin, making it difficult for the small diameter portion 74 to come off the second engagement portion 79, and enabling the soil accumulation plate 42 to be stably maintained in the stored position. Since the first locking portion 78 and the second locking portion 79 are disposed on the upper portion of the holding member 66, they can be kept away from the soil surface. In other words, during the plowing work associated with forward movement, the soil-collecting plate 42 immersed in the soil, the traveling portion of the traveling machine body, and the tilling portions 3, 3L, and 3R can suppress the adhesion of soil droplets scattered upward from the soil surface. Therefore, the first locking portion 78, the second locking portion 79, and the operating pin 73 that locks to them can be kept clean, and a stable locking state can be maintained. In addition, since the first locking portion 78 and the second locking portion 79 are disposed on the upper portion of the holding member 66, when the operator operates the operating pin 73, the operating portion 72 is easily grasped, making it easy to perform the switching operation using the operating pin 73.

[0069] The stopper piece 68 (corresponding to the cover member in Japanese Patent Application No. 2022-203191, "Soil piling plate and agricultural machine equipped with soil piling plate") will be described. The rotating shaft 61 is provided with a stopper piece 68 located between an upper collar 661 and a lower collar 662 of the holding member 66. The stopper piece 68 can limit the range in which the rotating shaft 61 rotates. The stopper piece 68 is provided with a boss portion 62 into which the rotating shaft 61 is inserted, and the boss portion 62 is provided with a hole penetrating in a direction perpendicular to the direction of the rotating shaft 61, and the stopper piece 68 and the rotating shaft 61 can be fixed and released integrally by inserting and removing a pin-shaped fixing member 67 so as to penetrate the boss portion 62 together with the rotating shaft 61. In the fixed state, the rotating shaft 61 cannot move up and down, and when the fixation is released, the rotating shaft 61 can move up and down relative to the upper collar 661, the lower collar 662 and the stopper piece 68.

[0070] The stopper piece 68 limits the rotation range of the soil collecting plate 42 around the rotation shaft 61 when it is fixed integrally with the rotation shaft 61. The stopper piece 68 restricts the rotation of the rotation shaft 61 by contacting the front edge portions 663 and 664 of the holding members 66 made of plate material located on both the left and right sides of the upper collar 661 and the lower collar 662. As shown in Figures 4, 9, 12, and 15, the front edge portion 663 is a contact portion with the one-side stopper piece 681. The front edge portion 664 is a contact portion with the other-side stopper piece 682. The stopper piece 68 has a one-side stopper piece 681 capable of preventing the rotation of the one side F1 and an other-side stopper piece 682 capable of preventing the rotation of the other side F2. In the first embodiment, the one-side stopper piece 681 contacts the front edge portion 663 on the right side in the direction of travel to prevent rotation of the one side F1, and the other-side stopper piece 682 contacts the front edge portion 664 on the left side in the direction of travel to prevent rotation of the other side F2.

[0071] The one side stopper piece 681 will be described. When the one-side stopper piece 681 is in a position where rotation to one side F1 is prevented, the small diameter portion 74 of the operating pin 73 protrudes from the rotating shaft 61 and can be locked with the second locking portion 79. When the one-side stopper piece 681 prevents the rotating shaft 61 from rotating to one side F1, and the operating pin 73 is locked with the second locking portion 79, the rotating shaft 61 cannot rotate to either one side F1 or the other side F2. In other words, the piling plate 42 can be maintained in a fixed position in the stored position.

[0072] The other stopper piece 682 will now be described. The position where the rotation of the other side F2 is blocked by the other-side stopper piece 682 is the swing position where the soil piling plate 42 is swung. Unlike the storage position, the swing position does not allow the rotation position of the soil piling plate 42 to be fixed or maintained. The stopper piece 68, by means of the one-side stopper piece 681 and the other-side stopper piece 682, limits the range within which the soil-collecting plate 42 can be rotated between the stored position and the swinging position.

[0073] The transition from the first locking portion 78 to the second locking portion 79 will be described. To move the pivot shaft 61 from the first locking portion 78 to the second locking portion 79, the operator grasps the operating portion 72 of the operating pin 73 and retracts the large diameter portion 75 and the small diameter portion 74, which are one end side of the operating pin 73, into the pivot shaft 61. Since the first locking portion 78 no longer has a member that blocks the pivot of the pivot shaft 61, it becomes possible to pivot to the storage position side, which is one side F1. If it continues to be pivoted to the storage position side, the one-side stopper piece will eventually prevent it from pivoting to the one side F1. In this state, the small diameter portion 74 of the operating pin 73 is engaged with the second locking portion 79, forming a state in which the piler plate 42 cannot move to both the one side F1 and the other side F2.

[0074] By setting the rotation prevention position of one side F1 of the soil piling plate 42 by the stopper piece 68 at a position different from the rotation prevention position by the first engagement portion 78 of the operating pin 73, it is possible to appropriately switch between the rotation range required when working with the soil piling plate 42 and the rotation range required when storing it outside of work.

[0075] An example of an actual use of the agricultural work machine 1 will now be described. A stand N that enables the agricultural working machine 1 to be stored and moved independently is attached to a side end of the agricultural working machine 1. The stand N is detachably attached to a member called a stand bracket 241 that is substantially U-shaped in a plan view. The stand bracket 241 is attached to the tip of the support frame 24 as shown in Fig. 5. When the agricultural working machine 1 is in operation, the stand N is removed from the stand bracket 241, and when it is stored, the stand N is attached to the stand bracket 241.

[0076] In the first embodiment of the present invention, the agricultural work machine 1 has extension working bodies (left extension working body 11L, right extension working body 11R) that can be folded upward relative to the central work body 11. In this case, the agricultural work machine 1 is often stored in a folded state for the sake of efficiency in storage space, so a stand bracket 241 is provided on the central work body 11 to attach and detach the stand N. In this way, the stand N can be installed on the agricultural work machine 1 regardless of whether the extension working bodies (left extension working body 11L, right extension working body 11R) are folded or not. The stand bracket 241 in the first embodiment is U-shaped with the front side open, and the stand N is fitted and fixed from the front with respect to the traveling direction of the agricultural work machine 1.

[0077] In the agricultural work machine 1 in the first embodiment of the present invention, both the central work body 11 and the extended work bodies (left extended work body 11L, right extended work body 11R) have tilling sections 3, 3L, 3R located behind the traveling body and which till the soil as the machine moves forward, and leveling sections 5, 5L, 5R which level the soil after tilling. In addition, the description will be given assuming that two travel marks A formed by the forward travel of the traveling body are formed near the inside of the stand bracket 241 in a plan view.

[0078] The position of the soil collector M will be explained. The mounding body M is positioned in front of the tilling units 3, 3L, 3R, and levels the travel trail A. Because the travel trail A is formed near the inside of the stand bracket 241, the mounding body M is positioned inside the stand bracket 241. Also, in order to avoid interfering with the traveling body located in front, it is desirable to position the mounding body M as close to the tilling units in the front-to-rear direction as possible. For this reason, when viewed from the front, the mounding body M appears to have the stand bracket 241 covered by the mounding plate 42 in the reference position.

[0079] The attachment and detachment of the stand N will be explained. A case where the stand N is attached to the stand bracket 241 after work by the agricultural work machine 1 has been completed will be described. The operating pin 73 is operated to rotate the piling plate 42 around the pivot shaft 61, thereby placing the piling body M in the storage position. When placed in the storage position, the stand bracket 241 is exposed with the worker facing the stand bracket 241 when viewed from the front.

[0080] The worker attaches the stand N to the stand bracket 241 that is exposed when viewed from the front. Because the stand bracket 241 is exposed, the worker can move the stand N toward the stand bracket 241 without having to move around the piling board 42. In other words, the stand N can be easily attached. At this time, the stand N is fixed in the stored position by the engagement between the second locking portion 79 and the operating pin 73 and the engagement between the one-side stopper piece and the front edge of the plate of the retaining member, so that the soil-collecting plate 42 will not move inadvertently and the worker can attach and detach the stand N without feeling uneasy. At the same time, after the installation work, the agricultural work machine 1 is detached from the traveling body and placed on the ground for storage. In the stored state, the mound M may be left in the stored position or may be returned to the reference position. The above-mentioned mounting procedure can be reversed when removing the stand N. After mounting the agricultural work machine 1 to the traveling body, if the mounding body M is not in the stored position, it is moved to the stored position and the stand bracket 241 is exposed. The stand N is removed from the stand bracket 241. After removal, the mound M is set to the reference position to prepare for work. Then, work is carried out.

[0081] In the first embodiment, the second locking portion 79 and the small diameter portion 74 are used to prevent the rotating shaft 61 from rotating to the other side F2, but the second locking portion 79 and the small diameter portion 74 can be omitted. In other words, the second locking portion 79 and the small diameter portion 74 can be omitted at the storage position to allow rotation to the other side F2. In this case, since the elastic member 71 is always biased to the one side F1, the soil piling plate 42 does not move unnecessarily when the stand N is attached or detached. Therefore, the stand N can be attached or detached to the stand bracket 241 while the soil piling body M has a simpler configuration. In the storage position in the first embodiment, the soil piling plate is arranged so that it faces parallel to the forward and backward directions of the traveling direction, but the storage position is not limited to this position. It is also possible to rotate the soil piling plate further to one side from the storage position shown in the figure, and to arrange it in a reversed position from the standard position so that the soil piling plate faces backward in the traveling direction.

[0082] A second alternative embodiment will be described with reference to FIGS. 16 is a side view of the mound M arranged on the left side in the traveling direction of the agricultural work machine according to the second embodiment, as viewed from the right side in the traveling direction. A first locking hole (part) 78a and a second locking hole (part) 79a are provided in the collar 661a. 17 is a front view showing a cross section of the rotating shaft 61 of the agricultural work machine according to the second embodiment, when it is in the reference position.

[0083] 18 is a side view of the mound M arranged on the left side in the traveling direction of the agricultural work machine according to the second embodiment, as viewed from the right side in the traveling direction. A first locking hole (part) 78a and a second locking hole (part) 79a are provided in the collar 661a. In this example, the first locking hole (part) 78a and the second locking hole (part) 79a are at different heights. 19 is a front view showing a cross section of the pivot shaft 61 of the agricultural work machine according to the second embodiment. It shows the time of the reference position. It is an example in which the heights of the first locking hole (part) 78a and the second locking hole (part) 79a are different from each other.

[0084] Figure 20 is a plan cross-sectional view of the agricultural work machine according to the second embodiment. This is an example in which a first locking hole (part) 78a and a second locking hole (part) 79a are provided in a collar 661a. This shows the mounding body M when a fixing member is inserted into the first locking hole (part) 78a, which serves as a reference position. This shows a case in which the first locking hole (part) 78a and the second locking hole (part) 79a are at the same height. Figure 21 is a plan sectional view of the agricultural work machine according to the second embodiment. This is an example in which a first locking hole (part) 78a and a second locking hole (part) 79a are provided in a collar 661a. This shows the mounding body M when the fixing member 67a is inserted into the second locking hole (part) 79a, which is the storage position of the mounding body M. This shows the case in which the first locking hole (part) 78a and the second locking hole (part) 79a are at the same height.

[0085] 22 is a plan sectional view of an agricultural work machine according to a second embodiment. This is an example in which a first locking hole (part) 78a and a second locking hole (part) 79a are provided in a collar 661a of a rotating shaft 61. The figure shows the mounding body when a fixing member 67a is inserted into the first locking hole (part) 78a, which is the reference position. 23 is a plan sectional view of the agricultural work machine according to the second embodiment. This is an example in which a first locking hole (part) 78a and a second locking hole (part) 79a are provided in a collar 661a. The figure shows the mounding body M when the fixing member 67a is inserted into the second locking hole (part) 79a, which is the storage position of the mounding body M.

[0086] In the above first embodiment, there is an elastic member 71 that urges the soil-collecting plate 42 in a rotational direction to one side, an operating pin 73 that can be protruded and retracted into the pivot shaft, an elastic member 76 for the operating pin that urges the operating pin 73, and a stopper piece 68, and it is described as the soil-collecting plate 42 swinging from the reference position to the swinging position. In the second embodiment, these components are not included, and work is performed with the soil piling plate 42 fixed in the reference position, and the soil piling plate 42 is moved to the stored position. Note that components having similar functions are given similar reference numerals, and descriptions of components having similar functions to those in the first embodiment may be omitted.

[0087] The holding member 66a is attached and fixed to the cover body 4. A cylindrical collar 661a is fixed to the holding member 66a. The rotating shaft 61 is inserted into the collar 661a, and the soil-collaring plate 42 is allowed to rotate freely between one side and the other side. Two pairs of through holes are provided in the middle of the collar 661a so that they intersect with each other. These through holes are called the first locking hole 78a and the second locking hole 79a. The rotating shaft 61 is provided with a hole in the horizontal direction perpendicular to the axial direction, and the fixing member 67a is inserted into this hole and the first locking hole 78a or the second locking hole 79a to fix the horizontal rotation and the vertical movement. When the rotating shaft 61 is fixed with the fixing member 67a using the first locking hole 78a, which is the first locking portion, it is fixed at the reference position. The tilling plate 42 does not swing and performs tilling while maintaining the state of the reference position.

[0088] When the rotating shaft 61 is fixed with the fixing member 67a using the second locking hole 79a, which is the second locking portion, it is fixed in the storage position. When the pile-up board 42 is in the storage position, the open portion on the front side of the U-shape is exposed when it faces the stand bracket 241. Therefore, by switching between the first locking hole 78a and the second locking hole 79a, into which the fixing member 67a is inserted, which makes it easy to attach and detach the stand N to and from the stand bracket 241, the orientation of the pile-up board 42 can be switched to make it easy to attach and detach the stand N.

[0089] The first and second locking holes 78a and 79a arranged in the collar 661a may be at different heights. In other words, the height of the piling board 42 during work is required to be suitable for the work, but since it is sufficient for the stand N to be detachable during storage, the first and second locking holes 78a and 79a may be offset in the height direction.

[0090] Even if the first locking hole 78a and the second locking hole 79a are disposed on the pivot shaft 61 and the collar 661a is provided with only a single through hole, it is possible to switch between the reference position and the stored position. In this case, the first locking hole 78a and the second locking hole 79a of the pivot shaft 61 are covered by the collar 661a, so that the exposure of the holes can be reduced and each hole can be protected from splashes of soil.

[0091] The first locking hole 78a, the second locking hole 79a, and the corresponding holes provided in, for example, the pivot shaft may be provided in a plurality of holes in the vertical direction. In this case, the height of the piling board 42 during work can be freely changed, so that it can be changed appropriately according to the place and conditions where the work is performed, improving the adaptability of the piling board to the work place.

[0092] The first and second embodiments of the present invention can be implemented regardless of the presence or absence of the stand N and the stand bracket 241. Although the present invention has been described as being installed close to the stand N and the stand bracket 241, it may be arranged away from these components. In the first and second embodiments of the present invention, in order to facilitate understanding, it has been described as being arranged to the left of the travel path boundary on the left side of the traveling direction, but this arrangement is not limited to this and it may be arranged symmetrically. Although the first and second embodiments of the present invention have been described as being installed on the central working body 11, it may be arranged on the extended working bodies (11L, 11R). The soil-collecting board 42 is used with its upper portion protruding above the soil surface.

[0093] The flow of soil on the soil-retaining board 42 will now be described. The soil piling plate 42 is positioned near the boundary of the travel path A, and by advancing, it is positioned outside the travel path A. As the soil piling plate 42 advances, it captures the soil displaced to the left and right of the traveling body.

[0094] The soil piling plate 42 allows the soil crushing section 3 to eliminate the tracks A formed in the soil before crushing, returning it to an appropriate state, while also enabling the soil clods located in front of the uncultivated area, which is not the work area, to be crushed, so that the soil can be evenly leveled after the agricultural work machine 1 having the working body has passed. [Explanation of symbols]

[0095] 1 Agricultural machinery 3 Crushing section 32 Cultivating Claw 42 Soil piling board 61 Swivel Axis 66 Retaining member 71 Elastic Members 73 Operation pin 78 First locking part 79 Second locking part A. Tracks M Earthing body

Claims

1. A soil-moving plate that moves soil to the travel mark formed by the traveling body; A pivot shaft for attaching the soil-retaining plate; A holding member that holds the pivot shaft rotatably to one side and the other side in a horizontal direction; an operation pin that can be extended and retracted in a direction intersecting an axial direction of the pivot shaft, The holding member includes a first locking portion that prevents the soil-collecting plate from rotating to one side by locking the operation pin protruding therefrom, and allows the soil-collecting plate to rotate to one side by locking the operation pin recessed therein; A mounding body comprising:

2. The holding member has a second locking portion that prevents the soil-collecting plate from rotating to the other side by locking the operating pin; 2. The earthmover according to claim 1, further comprising:

3. an elastic member for the operation pin that biases the operation pin so as to protrude toward the first locking portion and the second locking portion; 3. The earthmover according to claim 1 or 2, further comprising:

4. The pivot shaft is rotatable integrally with the pivot shaft, and a stopper piece is capable of preventing the soil packing plate from rotating to one side and the other side; 3. The earthmover according to claim 1 or 2, further comprising:

5. The rotation prevention position of one side of the soil piling body by the stopper piece is a position different from the rotation prevention position that prevents the rotation of the soil piling plate to one side by the first engaging portion of the operating pin.

5. The mound according to claim 4.

6. An elastic member that biases the soil-collecting plate to one side around the pivot shaft; 3. The earthmover according to claim 1 or 2, further comprising:

7. The present invention is provided with a soil crushing section which crushes soil as the traveling body advances, and a soil piling body which moves soil along a travel track formed by the traveling body between the soil crushing section and the traveling body, The soil-collecting body includes a soil-collecting plate that moves soil against the travel track formed by the traveling body, A pivot shaft for attaching the soil-retaining plate; A holding member that holds the pivot shaft rotatably to one side and the other side in a horizontal direction; an operation pin that can be extended and retracted in a direction intersecting an axial direction of the pivot shaft, The holding member includes a first locking portion that prevents the soil-collecting plate from rotating to one side by locking the operation pin protruding therefrom, and allows the soil-collecting plate to rotate to one side by locking the operation pin recessed therein; An agricultural machine comprising:

8. The holding member has a second locking portion that prevents the soil-collecting plate from rotating to the other side by locking the operating pin; 8. The agricultural machine according to claim 7, further comprising:

9. an elastic member for the operation pin that biases the operation pin so as to protrude toward the first locking portion and the second locking portion; 9. The agricultural machine according to claim 7 or 8, further comprising:

10. The pivot shaft is rotatable integrally with the pivot shaft, and a stopper piece is capable of preventing the soil packing plate from rotating to one side and the other side; 9. The agricultural machine according to claim 7 or 8, further comprising:

11. The rotation prevention position of one side of the soil piling body by the stopper piece is a position different from the rotation prevention position that prevents the rotation of the soil piling plate to one side by the first engaging portion of the operating pin.

11. An agricultural machine according to claim 10.

12. An elastic member that biases the soil-collecting plate to one side around the pivot shaft; 9. The agricultural machine according to claim 7 or 8, further comprising:

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