JP5863169B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine that allows an operator to easily perform a soil fall work.

  Conventionally, for example, an agricultural machine described in Patent Document 1 is known.

  This conventional farming machine includes a cultivating body (working rotor) that performs the cultivating work while rotating, a leveling body (apron) that performs the leveling work behind the cultivating body, and a cultivating cover body that covers the upper part of the cultivating body ( Shield cover).

JP-A-8-116703 (FIG. 4)

  However, in the above conventional farm work machine, for example, soil from the cultivated body adheres to the tillage cover body or the like during the tillage work, so that the worker adheres to the tillage cover body or the like after the completion of the tillage work. For example, the soil at the center of the tillage cover in the left-right direction is easy to drop, but the soil at both ends in the left-right direction of the tillage cover is compressed and firmly tightened. It is difficult, and sometimes it takes time to perform the soiling work.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural working machine which an operator can perform a landfall work easily.

請 Motomeko 1 agricultural machine according includes a tilling member to the tilling operation while rotating, the ground leveling member for a ground leveling work behind the tilling bodies, and cultivating a cover member for covering the upper portion of the plow body, the tilling A gap formed in a longitudinal direction on both ends in the left-right direction of the cover body, the tillage cover body covering the upper part of the tillage body, and the left-right direction of the cover body plate part Cover side plate portions provided at both ends, and the cover body plate portion connects the front frame connecting the front end portions of the cover side plate portions and the rear end portions of the cover side plate portions. A rear frame and an elastic plate attached to the front frame and the rear frame and covering an upper portion of the tillage body, and the gap includes the elastic plate, the cover side plate portion, the front frame, and the rear frame. And Mareta those that are composed of front-rear direction longitudinal shaped space.

The agricultural machine according to claim 2 is a cultivating body that performs a cultivating operation while rotating, a leveling body that performs a leveling operation behind the cultivating body, a cultivating cover body that covers an upper portion of the cultivating body, and the cultivating cover. includes a gap on left and right opposite end side formed in the longitudinal direction a longitudinal shape in the body, and a gap cover for covering the gap to be opened and closed, the gap cover is attached to the upper surface of the tilling cover Is.

Agricultural machine according to claim 3, wherein, in the agricultural machine according to claim 2, wherein the gap cover is composed of a front-rear direction elongate elastically deformable elastic member, widthwise inner end portion of the elastic member tilling It is attached to the upper surface of the cover body, and the outer end in the width direction of the elastic member is a free end.

  According to the present invention, for example, when an insertion member such as a bar is inserted into the gap, the soil can be dropped with the insertion member, so that an operator can easily perform the soiling work.

It is a top view of the agricultural working machine which concerns on the 1st Embodiment of this invention. It is a side view of an agricultural working machine same as the above. (A) is a partial top view of an agricultural work machine same as the above, (b) is a side view of a cultivation cover body. It is operation | movement explanatory drawing of a farm work machine same as the above. It is action explanatory drawing in case a cover side board part is large. It is a partial top view of the agricultural machine based on the 2nd Embodiment of this invention. It is a partial top view of the agricultural machine concerning the 3rd Embodiment of this invention. (A) is a partial top view of the agricultural working machine which concerns on the 4th Embodiment of this invention, (b) is a top view of an elastic board. (A) is a decomposition | disassembly side view of the cultivation cover body of an agricultural work machine same as the above, (b) is a side view of a cultivation cover body. It is a partial top view of the agricultural working machine which concerns on the 5th Embodiment of this invention. It is a partial side view of an agricultural working machine same as the above. (A) is a partial top view of the agricultural working machine which concerns on the 6th Embodiment of this invention, (b) is a partial rear view. It is a partial side view of an agricultural working machine same as the above. It is a partial side view of the agricultural working machine which concerns on the 7th Embodiment of this invention. It is a partial top view of an agricultural working machine same as the above. It is a fragmentary sectional view of an agricultural working machine same as the above. It is a fragmentary sectional view of an agricultural working machine same as the above. It is a fragmentary sectional view of an agricultural working machine same as the above. It is a fragmentary sectional view of an agricultural working machine same as the above. (A) is a schematic front view of the agricultural working machine which concerns on the 8th Embodiment of this invention, (b) is a partial top view of a tilling cover body. (A) is a top view of the leveling body of the agricultural working machine which concerns on the 9th Embodiment of this invention, (b) is a side view of a leveling body.

  A first embodiment of the present invention will be described with reference to the drawings.

  1 and 2, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to a rear portion of a tractor (not shown) that is a traveling vehicle, and moves forward through the farm field (upward and leftward in FIG. 2). It is a rotary cultivator that performs tillage work etc. while moving to.

  As shown in FIGS. 1 and 2, the farm work machine 1 includes a work machine body 2 that is detachably connected to a three-point link hitch part (work machine lifting support part) at the rear of the tractor, and the work machine body 2. A cultivating body 3 that is rotatably provided and rotates while cultivating, a plate-shaped leveling body 4 that covers the rear portion of the cultivating body 3 and performs leveling work behind the cultivating body 3, and a work implement body 2 and a plate-shaped tillage cover body 5 that is fixedly attached to 2 and covers the upper part of the tillage body 3.

  The work machine body 2 includes a frame pipe portion 11 that is longitudinal in the left-right direction. The frame pipe portion 11 is connected to a longitudinally hitch pipe portion 12 positioned in front of the frame pipe portion 11 via connecting plate portions 13 and 14. The hitch pipe portion 12 is provided with a gauge wheel holder portion 15, and a gauge wheel (not shown) is attached to the gauge wheel holder portion 15.

  An input shaft 16 for inputting power from the PTO shaft side of the tractor is rotatably provided at the center in the left-right direction of the frame pipe portion 11. A power transmission means (not shown) for transmitting the power from the input shaft 16 to the tiller 3 is connected to the input shaft 16. The power transmission means includes, for example, a gear, a shaft, a sprocket, a chain, and the like. A mast 17 is erected at the center in the left-right direction of the frame pipe portion 11.

  An upper portion of a chain case portion (transmission case portion) 21 that is a tillage body support portion is fixed to a left end portion that is one end portion in the left-right direction of the frame pipe portion 11. The chain case portion 21 includes a vertical plate-like plate member 22 fixed to the left end portion of the frame pipe portion 11, and a cover member 23 fixed to the plate member 22. Between the plate-like member 22 and the cover member 23, a chain and a sprocket of power transmission means (not shown) are accommodated rotatably.

  An upper portion of a bracket portion 26 that is a tillage body support portion is fixed to a right end portion that is the other end portion in the left-right direction of the frame pipe portion 11. The bracket portion 26 is configured only by a vertical plate-like plate member 27 fixed to the right end portion of the frame pipe portion 11.

  As shown in FIG. 2, a rear side plate 30 that covers the side portion of the tillage body 3 is fixed to the rear end portions of the chain case portion 21 and the bracket portion 26.

  As shown in FIG. 2, the cultivating body 3 is rotatably mounted on the lower part of the left chain case part 21 and the lower part of the right bracket part 26 and is driven in a predetermined direction (for example, in FIG. 2) by the power from the power transmission means. It has a left and right longitudinal tillage shaft 31 that rotates in the direction indicated by the arrow. A plurality of tilling claws 32 that perform a tilling operation while rotating together with the tilling shaft 31 are attached to a plurality of portions of the tilling shaft 31 that are arranged in the left-right direction at intervals.

  As shown in FIGS. 1 and 2, the tillage cover body 5 has a vertical center that is a middle portion in the vertical direction of the left chain case portion 21 and a vertical direction that is a middle portion in the vertical direction of the bracket portion 26 on the right side. It is fixedly installed in the substantially central part. That is, the tilling cover body 5 is fixed between the plate-like member 22 of the chain case portion 21 and the plate-like member 27 of the bracket portion 26.

  Here, as shown in FIGS. 3 (a) and 3 (b), the tillage cover body 5 is made of a metal having a substantially curved plate shape that protrudes upward and covers the upper portion of the tillage body 3, and is formed in a left-right longitudinal shape. A cover main body plate portion 36, and a metal cover side plate portion 37 having a longitudinal longitudinal direction fixed to both ends of the cover main body plate portion 36 in the vertical direction so as to be orthogonal to the cover main body plate portion 36. And have.

  The left and right cover side plate portions 37 have the same shape, and the left cover side plate portion 37 of the cover side plate portions 37 is attached to the inner surface of the plate-like member 22 of the chain case portion 21 (the inner surface of the tillage body support portion). The cover side plate part 37 on the right side of the cover side plate parts 37 is fixed to the inner surface of the plate-like member 27 of the bracket part 26 (cultivating body support part inner surface). And are fixed by mounting bolts 38 so as to partially overlap.

  An insertion member (see FIG. 4 and FIG. 5) 40 such as a rod is provided on both ends of the cover main body plate portion 36 of the tilling cover body 5 when the operator (not shown) performs a soil dropping operation. Landing gaps (landing space portions) 41, which are longitudinal gaps in the front-rear direction in a plan view to be inserted, are formed through the upper and lower surfaces of the cover main body plate portion 36, respectively. Note that the left and right slit-shaped earth-clearing gaps 41 are formed in the same shape. The width dimension (length dimension in the left-right direction) H of the earthing gap 41 is, for example, 1 cm to 10 cm, and preferably, for example, 3 cm.

  Each earthing gap 41 is constituted by, for example, one longitudinal cutout portion 42 formed in a cutout from the edge of the cover body plate portion 36 in the left-right direction. For this reason, the soil clearance 41 is located facing the inner surface of the cover side plate portion 37. Further, the front end of the notch 42 is located near the front end of the cover body plate 36, the rear end of the notch 42 is located near the rear end of the cover body plate 36, and the earth gap 41 is The cover body plate portion 36 is formed over substantially the entire length in the front-rear direction. In FIG. 1 and FIG. 3 and the like, the hatched portion is the earthing gap 41.

  Further, the cover body plate portion 36 has a leveling body mounting portion 44 on the rear end side, and a plurality of mounting holes 45 are formed in the leveling body mounting portion 44. Then, the leveling body 4 extends in the vertical direction around the shaft 47 in the left-right direction at the rear end of the cover body plate portion 36 of the tillage cover body 5 through a hinge 46 which is a mounting tool attached to the mounting hole 45. It is pivotally attached. That is, the leveling body 4 can be rotated in the vertical direction about the shaft 47 with respect to the tilling cover body 5.

  As shown in FIGS. 1 and 2, the leveling body 4 is attached to the rear end portion of the cover main body plate portion 36 of the tilling cover body 5 so as to be pivotable in the vertical direction about the left and right axis 47. 3 has a leveling plate (leveling flat plate) 51 that performs leveling work, and an extended leveling plate (extended leveling flat plate) 52 that is foldable at both ends of the leveling plate 51 in the left-right direction.

  The leveling plate 51 covers a rear portion of the tillage body 3 and performs a leveling operation behind the tillage body 3. At both ends in the direction, there is a leveling side plate portion 57 having a longitudinally long longitudinal shape fixed vertically so as to be orthogonal to the leveling main body plate portion 56.

  The connecting portion 58 of the work machine body 2 and the suspension plate portion 59 of the leveling body 4 are connected by the ground pressure adjusting mechanism 54, and the ground pressure of the leveling body 4 with respect to the farm scene is adjusted by the ground pressure adjusting mechanism 54. It is possible.

  Next, the operation and the like of the farm work machine 1 will be described.

  When the farm work machine 1 moves forward by the forward traveling of the tractor having the farm work machine 1 connected to the rear part, the tiller 3 performs the tilling work while rotating, and the ground leveling machine 4 performs the leveling work behind it.

  Then, during this tillage leveling work, the soil plowed and spun up by the tillage claws 32 of the rotating tiller body 3 is ground leveling body 4, tiller cover body 5, chain case portion 21 and It adheres to the bracket part 26 and the like.

  For this reason, for example, after the completion of the tilling work, the worker performs a soil dropping operation to remove the adhered soil.

  At the time of the earthing work, the operator inserts an insertion member 40 such as an elongated bar into the earthing gap 41 from above the tillage cover body 5 as shown in FIG. Remove and remove the attached soil.

  Here, as shown in FIG. 4, the soil splashed by the cultivator 3 has a horizontal cover body plate portion 36, a vertical cover side plate portion 37, and a plate so as to close the clearance gap 41. It adheres between the members 22 and 27. That is, the soil is compressed and attached in a tightly-tightened state at the respective corner portions on both ends in the left-right direction of the tilling cover body 5, and the earth-clearing gap 41 is closed by the firmly attached soil. Note that the amount of soil adhering is almost the same as the case where there is no gap 41 for earth dropping.

  Then, the operator can insert the insertion member 40 into the ground clearance 41 to break down and drop the attached soil even if the soil is firmly attached to the left and right ends of the tillage cover body 5. Is possible. In addition, depending on the soil quality of the farm field, the attached soil is less likely to be hard due to the presence of the clearance gap 41, and in this case, the attached soil is likely to be dropped even from the lower side of the tillage cover body 5.

  FIG. 5 is an explanatory view of the operation when the cover side plate portion 37 of the tillage cover body 5 is larger than that of FIG. 4. However, even in this case, the operator removes the insertion member 40 from the ground clearance 41. It is possible to break down and drop the adhered soil firmly adhered between the horizontal cover main body plate portion 36 and the vertical cover side plate portion 37.

  And according to the agricultural working machine 1, since it has the clearance gap 41 formed in the left-right direction both ends of the cultivation cover body 5, respectively, for example, the insertion member 40, such as a bar | burr, is placed above the clearance gap 41. Since the soil can be dropped by inserting from the above, the worker can easily perform the soil falling work.

  Next, FIG. 6 shows a second embodiment of the present invention.

  As shown in FIG. 6, each earthing gap 41 is formed in a plurality of, for example, two front and rear, which are notched from the edge of the cover body plate portion 36 in the left-right direction and are arranged at intervals in the front-rear direction. It may be constituted by notches 61 and 62 having a longitudinal direction. For example, you may comprise by three or four or more notch parts.

  Next, FIG. 7 shows a third embodiment of the present invention.

  As shown in FIG. 7, each earthing gap 41 may be constituted by one longitudinally longitudinal hole 63 formed in the vicinity of the edge in the left-right direction of the cover body plate 36. In this case, the clearance gap 41 is located slightly away from the cover side plate portion 37 inward, and is a part of the cover body plate portion 36 between the slit-shaped hole portion 63 and the cover side plate portion 37. There is an elongated plate portion 36a. Note that, for example, a plurality of holes arranged at intervals in the front-rear direction may be used. The shape of the hole may be, for example, an oblong shape or a circular shape in addition to a rectangular shape.

  Next, FIGS. 8 and 9 show a fourth embodiment of the present invention.

  The tillage cover body 5 of the fourth embodiment has a cover main body plate portion 36 and left and right cover side plate portions 37 as in the previous embodiment, but the cover main body plate portion 36 shown in FIGS. Unlike the above-described embodiments, the elastic plate 70 has an elastic plate 70 that can be elastically deformed.

  As shown in FIG. 8 and FIG. 9, the cover main body plate portion 36 includes a front frame 71 made of metal in the left-right direction connecting the front end portions of the cover side plate portions 37, and the cover side plate portions 37. A left and right longitudinal metal rear frame 72 connecting the rear ends, a rubber elastic plate (rubber cover) 70 attached to the front and rear frames 71 and 72 and covering the upper portion of the tillage body 3, And a plurality of longitudinally supporting metal support plates 73 that partially support the lower surface of the elastic plate 70 from below.

  The front end portion of the elastic plate 70 is movable in the front-rear direction with respect to the front frame 71, and the rear end portion of the elastic plate 70 is movable in the front-rear direction with respect to the rear frame 72.

  The front frame 71 has a cylindrical portion 75 that is longitudinal in the left-right direction and has a substantially rectangular cross section, and the cylindrical portion 75 is provided with a substantially cylindrical attached portion at a plurality of positions arranged in the left-right direction at intervals from each other. The internal thread portion 74 is fixed.

  The rear frame 72 has a horizontal leveling body mounting portion 44 that is bent in the left-right direction and bent at a plurality of locations, and mounting holes 45 are formed at a plurality of locations that are spaced apart from each other in the horizontal direction. Has been. Then, the leveling body 4 is attached to the rear end portion of the cover main body plate portion 36 through the hinge 46 attached to the attachment hole 45 so as to be rotatable in the vertical direction. A mounting hole 69 is formed in the rear frame 72.

  The elastic plate 70 has a substantially rectangular plate shape that is long in the left-right direction in a plan view, and the front end portion of the elastic plate 70 is spaced apart from each other at a plurality of positions in the left-right direction. A front long hole 76 is formed. A plurality of longitudinal rear longitudinal hole portions 77 corresponding to the front longitudinal hole portions 76 are formed at a plurality of locations arranged in the left and right direction at intervals between the rear end portions of the elastic plate 70.

  A substantially square front mounting hole 78 and rear mounting hole 79 are formed at the front and rear ends of the support plate 73. The front end portion of the support plate 73 is attached to the female screw portion 74 of the front frame 71 with a bolt 80. That is, the lower end portion of the female screw portion 74 of the front frame 71 is loosely inserted into the front long hole portion 76 of the elastic plate 70 so as to be movable along the front long hole portion 76, and the bolt 80 is inserted into the loosely inserted female screw portion 74. Are screwed together.

  Further, the rear end portion of the support plate 73 has a rear frame formed by a bolt 81 inserted into the rear mounting hole 79, the collar 66, the rear elongated hole 77, and the mounting hole 69 and a nut 82 screwed to the bolt 81. The rear end portion of the elastic plate 70 is attached to 72 through the rear end portion of the elastic plate 70. As a result, the rear end portion of the elastic plate 70 is movable in the front-rear direction with respect to the rear frame 72. The lower surface of the elastic plate 70 is partially covered with a plurality of support plates 73. The upper surface of the elastic plate 70 is covered with the front frame 71 at the front end and covered with the rear frame 72 at the rear end. In other words, a portion of the upper surface of the elastic plate 70 excluding the front and rear end portions is an exposed portion 70a exposed upward.

  The longitudinal gaps 41 in the front-rear direction formed on the left and right ends of the tilling cover body 5 are the side ends of the elastic plate 70, the cover side plate 37, and the left and right ends of the front frame 71, respectively. And a single space portion 83 surrounded by the left and right end portions of the rear frame 72. That is, the length in the left-right direction of the elastic plate 70 is smaller than the distance between the left and right cover-side plate portions 37 that are opposed to each other, and as a result, the left-right direction edge of the elastic plate 70 and the inner surface of the cover-side plate portion 37 are separated. A slit-shaped gap 41 is formed between them. For this reason, the clearance gap 41 is located facing the inner surface of the cover side plate portion 37.

  In the agricultural machine 1 according to the fourth embodiment shown in FIGS. 8 and 9, as in the above embodiment, for example, an insertion member 40 such as a bar is inserted into the ground clearance 41 from above to remove the soil. Since it can be dropped, the worker can easily carry out the soiling work. Note that, for example, a notch portion or a hole portion may be formed at the left and right ends of the elastic plate 70 of the cover main body plate portion 36 to provide the earthing gap 41.

  Next, FIGS. 10 and 11 show a fifth embodiment of the present invention.

  Unlike the fourth embodiment, the tillage cover body 5 of the fifth embodiment does not have the left and right cover side plate portions 37. Therefore, the front frame 71 of the cover main body plate portion 36 is fixed to the hitch pipe portion 12, and the rear frame 72 of the cover main body plate portion 36 is fixed to the rear side plate 30.

  Further, the longitudinal gaps 41 in the front-rear direction formed on the left and right ends of the tillage cover body 5 are respectively formed on the side ends of the elastic plate 70, the plate-like members 22, 27, the rear plate 30, and the rear frame. It is composed of one space portion 85 having a front opening shape surrounded by 72 left and right end portions. And the farm work machine 1 which concerns on this 5th Embodiment can have the same effect.

  Next, FIGS. 12 and 13 show a sixth embodiment of the present invention.

  The tillage cover body 5 of the sixth embodiment does not have the left and right cover side plate portions 37 as in the fifth embodiment. Further, unlike the fifth embodiment, the cover main body plate portion 36 of the tillage cover body 5 is composed only of a metal plate 86 such as iron that hardly undergoes elastic deformation.

  The metal plate 86 is formed, for example, in a substantially curved plate shape that protrudes upward, and is formed in a longitudinal direction in the left-right direction. The metal plate 86 is fixedly attached to the connecting plate portion 13 fixed to the frame pipe portion 11 via the attachment means 87. It has been. The attachment means 87 includes a backing plate 88 fixed to the upper surface of the metal plate 86, a mounting plate 89 standing on the backing plate 88, and a bolt 90 which is a fixture for attaching the mounting plate 89 to the connecting plate portion 13. And a nut 91.

  Further, each of the longitudinal gaps 41 in the front-rear direction formed on the both ends in the left-right direction of the tillage cover body 5 made of only the metal plate 86 is connected to the side end portion of the metal plate 86 and the plate-like members 22, 27. It is configured by a single space 92 having a front-rear opening shape surrounded by the rear plate 30. And the farm work machine 1 concerning this 6th Embodiment can have the same operation effect.

  Next, FIGS. 14 to 19 show a seventh embodiment of the present invention.

  The agricultural machine 1 according to the seventh embodiment includes a gap cover body 101 such as an auxiliary cover that covers the entire earth-clearing gap 41 so as to be openable and closable.

  The gap cover body 101 is constituted by an elastic member 102 such as a rubber plate that is elastically deformable in a longitudinal plate shape that is slightly larger in the front-rear direction than the clearance gap 41, for example. The elastic member 102 is in the form of a flat plate positioned along the earth-moving gap 41 before being elastically deformed. The inner end in the width direction of the elastic member 102 is fixedly attached to the upper surface of the cover main body plate portion 36 with bolts 103 and nuts 104 as fixtures, and the outer end in the width direction of the elastic member 102 is connected to the free end 105. It has become.

  The width dimension (the length dimension in the left-right direction) of the elastic member 102 that is the gap cover body 101 is set to a value at which the free end portion 105 abuts against the inner surface of the cover side plate portion 37 without elastic deformation of the elastic member 102, for example. (See FIGS. 15 and 16).

  Note that the width dimension of the elastic member 102 may be set to a value at which the free end portion 105 curved upward by bending elastic deformation of the elastic member 102 abuts on the inner surface of the cover side plate portion 37 in a planar manner (FIG. 19). reference). For example, although not shown, the free end portion 105 bent downward by bending elastic deformation of the elastic member 102 may be brought into contact with the inner surface of the cover side plate portion 37 in a planar shape.

  Then, as shown in FIG. 16, when the soil from the tillage body 3 adheres to the respective corner portions on both the left and right sides of the tillage cover body 5, the operator holds the elastic member 102 that is the gap cover body 101. After lifting up by elastic deformation and opening the clearance gap 41, it is possible to insert the insertion member 40 such as a rod into the opening clearance gap 41 to break down and drop the attached soil ( FIG. 17).

  Further, the operator inserts the insertion member 40 together with the elastic member 102 into the earthing gap 41 so as to be elastically deformed into the earthing gap 41 by pushing down the elastic member 102 with the insertion member 40 and adheres to the earthing gap 41. It is also possible to break down and drop the soil (see FIG. 18).

  And according to the agricultural machine 1 which concerns on this 7th Embodiment, since the insertion member 40, such as a stick | rod, can be inserted in the gap 41 for earthing from above, and earth can be dropped, an operator can perform earthing work In addition to the effect that can be easily performed, the following effects can be achieved.

  In other words, since the gap cover body 101 is provided to cover the earth clearance gap 41 so as to be openable and closable, the soil splashed by the tillage body 3 is scattered upward through the earth clearance gap 41 during the tilling work. Therefore, for example, the upper surface of the cover main body plate portion 36 is hard to get dirty, and the earthing work is further facilitated.

  Further, since the gap cover body 101 is constituted by an elastic member 102 that can be elastically deformed, the earthing gap 41 can be easily opened by elastic deformation of the elastic member 102, and the elastic member 102 is Since the original flat plate shape is restored by the elastic restoring force, the earthing gap 41 can be easily closed by the elastic member 102.

  Further, since the earthing gap 41 is covered with the gap cover body 101, for example, the earthing gap 41 can be formed larger than the illustrated one.

  The seventh embodiment has a configuration in which the gap cover body 101 is provided in the first embodiment. For example, although not illustrated, the gap cover body 101 may be provided in the other embodiments. Is possible.

  In each of the above-described embodiments, the construction of the side drive type in which the work machine body 2 has the chain case portion 21 on the left side has been described. For example, the eighth embodiment shown in FIGS. 20 (a) and 20 (b). As described above, the work machine main body 2 may have a center drive type configuration in which the chain case portion 110 is provided at the central portion in the left-right direction.

  Furthermore, in each said embodiment, although the clearance gap 41 was each demonstrated in the left-right direction both ends in only the tilling cover body 5 among the tilling cover body 5 and the leveling body 4, for example, FIG. As in the ninth embodiment shown in a) and (b), the earthing gaps 111 that are longitudinal gaps in the front-rear direction may be formed on both ends of the leveling body 4 in the left-right direction.

  That is, for example, it may be configured to include the earth clearance gaps 111 respectively formed on both the left and right ends of the leveling body 4 of the tilling cover body 5 and the leveling body 4, and in both the tilling cover body 5 and the leveling body 4. A structure provided with gaps 41 and 111 for earth dropping formed at both ends in the left-right direction may be used.

  The ground clearance gap 111 of the leveling body 4 is constituted by, for example, one longitudinal notch 112 formed in the left-right direction end of the leveling main body plate portion 56 by notching from the edge thereof. . For this reason, the clearance gap 111 is positioned facing the inner surface of the leveling plate 57.

  Further, like the clearance gap 41 of the tilling cover body 5, the clearance gap 111 of the ground leveling body 4 is also reduced by the clearance cover body 101 made of an elastic member 102 such as a rubber plate. May be covered so as to be openable and closable (see FIG. 21), but it is not always necessary to cover them with the gap cover body 101.

  For example, the gap cover body 101 may be formed of a metal plate, and the metal plate may be provided on the cover body plate portion 36 so as to be slidable in the left-right direction.

  Further, the configuration of the embodiment of the present invention described above may be appropriately replaced or combined without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Farm machine 3 Tillage body 4 Leveling body 5 Tillage cover body
36 Cover body plate
37 Cover side plate
41,111 between the gap for the soil dropped a gap
70 Elastic plate
71 Front frame
72 rear frame
83 Space
101 Gap cover body
102 Elastic member
105 Free end

Claims (3)

A plowing body that rotates while plowing,
A leveling body that performs leveling work behind this tilled body,
A cultivation cover body covering an upper portion of the cultivation body;
With the gap formed in the longitudinal direction on each side in the left and right direction in this tillage cover body,
The tillage cover body is
A cover body plate covering the upper part of the tillage body;
A cover side plate portion provided at each of both ends of the cover body plate portion in the left-right direction,
The cover body plate part is
A front frame connecting the front ends of the cover side plate portions;
A rear frame that connects the rear ends of the cover side plate portions;
An elastic plate attached to the front frame and the rear frame, covering the upper part of the tillage body,
The said clearance gap is comprised by the space part of the longitudinal direction front-back direction enclosed by the said elastic board, the said cover side board part, the said front frame, and the said rear frame. The agricultural working machine characterized by the above-mentioned. A plowing body that rotates while plowing,
A leveling body that performs leveling work behind this tilled body,
A cultivation cover body covering an upper portion of the cultivation body;
A gap formed in the longitudinal direction on each side in the left-right direction in this tillage cover body,
And a gap cover for covering the gap to be opened and closed,
The gap cover body, agricultural working machine characterized in that attached to the upper surface of the tilling cover. The gap cover body is composed of an elastic member that is elastically deformable in the longitudinal direction,
The agricultural working machine according to claim 2 , wherein an inner end portion in the width direction of the elastic member is attached to an upper surface of the tillage cover body, and an outer end portion in the width direction of the elastic member is a free end portion.

Images