JP5599621B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine that can easily visually check the tilling depth of a tilled body.

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

  This conventional agricultural machine includes a machine body connected to the rear part of a traveling vehicle such as a tractor, a cultivating body provided on the machine body for plowing work, a cover body covering an upper part of the cultivating body, and leveling at the rear of the cultivating body. A leveling body that performs the work, and a marking unit that allows an operator on the traveling vehicle to visually check the plowing depth (the depth under the farm scene) of the plowing body.

  Further, the mark means is constituted by a plate-shaped tilling depth confirmation gauge along the front-rear direction provided in a projecting manner downward at the front end portion of the cover body. The plowing depth check gauge has a gauge surface in which the front surface, which is a plate thickness surface, retreats backward as it goes from the top to the bottom, and has a plurality of stepped notches, and above this gauge surface An attachment portion to the front end portion of the cover body is provided.

JP 2007-330181 A (paragraph [0019] on page 4, FIG. 4)

  However, in the conventional agricultural machine described above, the plate-shaped tilling depth check gauge as a mark means has a plurality of stepped notches with a shape in which the front surface, which is the plate thickness surface, recedes backward as it goes from the top to the bottom. Since it has a certain gauge surface, there is a problem that it is difficult for an operator who rides the traveling vehicle to see the stepped notch, and it is difficult to visually check the tilling depth of the tilled body.

  This invention is made in view of such a point, and it aims at providing the agricultural machine which the worker who got on the traveling vehicle can confirm visually the cultivation depth of a cultivation body easily.

According to a first aspect of the present invention, there is provided a farm machine connected to a traveling vehicle, a cultivating body that is provided on the craft and performs a tilling work, a cover body that covers an upper portion of the cultivating body, and a rear side of the cultivating body. It is composed of a leveling body that performs leveling work and an elastic body, has flexibility, is provided at the front end of the cover body, and an operator who rides on the traveling vehicle visually checks the tilling depth of the tilling body Marking means, and the marking means is arranged side by side in the left-right direction, and has a plurality of mark portions whose lower ends are located at different heights.

  The agricultural machine according to claim 2 is the agricultural machine according to claim 1, wherein the plurality of mark portions are arranged side by side in the left-right direction.

  The agricultural machine according to claim 3 is the agricultural machine according to claim 2, wherein the mark means has an attachment part connecting the upper ends of the plurality of mark parts, and the attachment part is attached to the front end part of the cover body. It is what has been.

  The agricultural machine according to claim 4 is the agricultural machine according to claim 1, wherein the plurality of mark portions are integrally and continuously arranged in the left-right direction.

  The farm machine according to claim 5 is the farm machine according to any one of claims 1 to 4, wherein the plurality of mark portions can be vertically adjusted with respect to the cover body.

  The agricultural machine according to claim 6 is the agricultural machine according to any one of claims 1 to 5, wherein the plurality of mark portions are shifted laterally from the rear position of the tire of the traveling vehicle.

According to a seventh aspect of the present invention, there is provided an agricultural machine that is connected to a traveling vehicle; It is composed of a leveling body that performs leveling work and an elastic body, has flexibility, is provided at the front end of the cover body, and an operator who rides on the traveling vehicle visually checks the tilling depth of the tilling body The mark means has a plurality of mark notch portions that are positioned side by side in the left-right direction and whose upper ends are positioned at different heights.

  An agricultural machine according to an eighth aspect is the agricultural machine according to the seventh aspect, wherein the plurality of notch portions for the mark are positioned side by side in the left-right direction.

  According to a ninth aspect of the present invention, in the agricultural machine according to the seventh aspect, the plurality of mark cutout portions are integrally arranged in a line in the left-right direction.

  According to a tenth aspect of the present invention, in the agricultural machine according to any one of the seventh to ninth aspects, the plurality of mark notches can be adjusted in the vertical position with respect to the cover body.

  The farm work machine according to claim 11 is the farm work machine according to any one of claims 7 to 10, wherein the plurality of mark notches are shifted from the rear position of the tire of the traveling vehicle to the side. .

  The agricultural machine according to claim 12 is the agricultural machine according to any one of claims 7 to 11, wherein the marking means also has a function of a front cover body that covers a front portion of the tillage body.

  According to the first aspect of the present invention, since the mark portion is easy to see from the worker on the traveling vehicle, the worker on the traveling vehicle can easily visually check the tilling depth of the tilled body.

  According to the second aspect of the present invention, since the plurality of mark portions are positioned side by side in the left-right direction, an operator on the traveling vehicle can more easily visually check the tilling depth of the tilling body. .

  According to the invention which concerns on Claim 3, it is not necessary to attach each mark part to a cover body separately, and simplification of the attachment operation | work to a cover body can be aimed at.

  According to the invention of claim 4, since the plurality of mark portions are integrally arranged side by side in the left-right direction, there is no need to individually attach each mark portion to the cover body, and the mounting work to the cover body Can be facilitated.

  According to the invention which concerns on Claim 5, since a some mark part can adjust an up-and-down position with respect to a cover body, it can respond appropriately to the state of a farm field, etc.

  According to the invention of claim 6, since the plurality of mark portions are shifted laterally from the rear position of the tire of the traveling vehicle, the tire of the traveling vehicle does not interfere with the visual observation, and the operation is performed on the traveling vehicle. The person can visually check the tilling depth of the tilled body more easily.

  According to the invention which concerns on Claim 7, since the notch for a mark is easy to see from the operator who got on the traveling vehicle, the worker who got on the traveling vehicle can confirm visually the cultivation depth of a tilling body easily.

  According to the eighth aspect of the present invention, since the plurality of notch portions for marks are arranged side by side in the left-right direction, an operator on the traveling vehicle can more easily visually check the tilling depth of the tilling body. I can confirm.

  According to the ninth aspect of the present invention, since the plurality of notch portions for the mark are positioned integrally and continuously in the left-right direction, it is not necessary to individually form the notch portions for the mark, The notch can be easily formed.

  According to the invention which concerns on Claim 10, since the some notch part for a mark can adjust an up-and-down position with respect to a cover body, it can respond appropriately to the state of a farm field, etc.

  According to the eleventh aspect of the present invention, since the plurality of notch portions for mark are shifted from the rear position of the tire of the traveling vehicle to the side, the tire of the traveling vehicle does not get in the way of visual observation and gets on the traveling vehicle. The operator can visually check the tilling depth of the tilled body more easily.

  According to the twelfth aspect of the present invention, since the mark means has the function of a front cover body that covers the front portion of the tillage body, it is not necessary to provide a front cover body that is separate from the mark means.

It is a side view of the agricultural working machine which concerns on the 1st Embodiment of this invention. It is a top view of an agricultural working machine same as the above. It is a partial front view of a farm work machine same as the above. It is a front view of the mark part of an agricultural working machine same as the above. It is a partial front view of the agricultural working machine which concerns on the 2nd Embodiment of this invention. It is a front view of the mark part of the agricultural machine concerning the 3rd Embodiment of this invention. It is a front view of the mark part of the agricultural working machine which concerns on the 4th Embodiment of this invention. It is a front view of the mark part of the agricultural working machine which concerns on the 5th Embodiment of this invention. It is a front view of the mark part of the agricultural working machine which concerns on the 6th Embodiment of this invention. It is a partial front view of the agricultural machine based on the 7th Embodiment of this invention. It is a front view of the notch for a mark of a farm working machine same as the above. It is a front view of the notch part for a mark of the agricultural working machine which concerns on the 8th Embodiment of this invention. It is a front view of the notch part for a mark of the agricultural working machine which concerns on the 9th Embodiment of this invention. It is a front view of the agricultural machine based on the 10th Embodiment of this invention. It is a front view of the agricultural working machine which concerns on the 11th Embodiment of this invention.

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

  In the figure, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is an alternative working machine (cultivation leveling device) used by being connected to the rear part of the tractor T, which is a traveling vehicle, for example. Then, the farm work machine 1 performs a plowing work (cultivation leveling work) while moving forward in the traveling direction by the forward traveling of the tractor T in the field while being connected to the rear part of the tractor T.

  The farm work machine 1 includes a machine body 2 connected to a three-point link part (work machine lifting device) at the rear of the tractor T.

  The airframe 2 has a three-point connecting portion 5 composed of a top mast 3, a lower arm 4, and the like. The three-point connecting portion 5 is connected to a three-point link portion of the tractor T. The airframe 2 has a gear case portion 6 at the center in the left-right direction, and an input shaft 7 is rotatably supported by the gear case portion 6. The input shaft 7 is connected to the PTO shaft of the tractor T via power transmission means.

  The airframe 2 has a pair of left and right frame pipe portions 8 that are attached to the gear case portion 6 and that are longitudinal in the left-right direction. The upper end portion of the chain case portion 9 is attached to the left end portion which is one end portion of the left frame pipe portion 8. The upper end portion of the bracket portion 10 is attached to the right end portion which is the other end portion of the right frame pipe portion 8.

  A rotary type tiller that performs a tilling operation while rotating in a predetermined direction around a rotation center axis in the left and right direction by power from the input shaft 7 side is applied to the lower end part of the chain case part 9 and the lower end part of the bracket part 10. The body 11 is installed rotatably. That is, the machine body 2 is provided with a tiller 11 having a longitudinal shape in the left-right direction so as to be rotatable about a rotation center axis in the left-right direction.

  The tilling body 11 has a left end which is one end in the axial direction supported rotatably by the chain case portion 9 and a right end which is the other end in the axial direction is rotatably supported by the bracket portion 10. And a plurality of tilling claws 13 projecting radially from a plurality of flange portions at predetermined intervals in the axial direction of the tilling shaft 12 of the tilling shaft 12. ing.

  The tillage shaft 12 is connected to the input shaft 7 through power transmission means (not shown) constituted by a chain in the chain case portion 9, a transmission shaft in the frame pipe portion 8, a gear in the gear case portion 6, and the like. It is connected.

  In addition, a substantially plate-like cover body (upper cover) that covers substantially the entire upper portion of the tillage body 11 so that the soil does not scatter upward is formed in the vertical middle portion of the chain case portion 9 and the vertical middle portion of the bracket portion 10. Means) 16 is installed. That is, the machine body 2 is fixed with a cover body 16 having a longitudinal shape that prevents the soil such as mud plowed by the tiller 11 from scattering upward. The cover body 16 is formed in a substantially curved plate shape that protrudes upward. The length of the cover body 16 in the left-right direction is substantially the same as the length of the tiller 11 in the left-right direction.

  Furthermore, a front side plate 17 and a rear side plate 18 that cover the side portions of the tillage body 11 are fixedly provided at both ends in the left-right direction of the cover body 16 so that the soil does not scatter sideways.

  Further, at the rear end portion of the cover body 16, a horizontal leveling body 21 in the left-right direction that performs leveling work behind the tillage body 11 is provided so as to be rotatable in the vertical direction via a rubber plate 22 that is an elastic plate. ing. The leveling body 21 has a substantially flat plate-shaped first leveling plate (level plate) 23 whose upper end is attached to the rear end of the cover body 16 via a rubber plate 22, and a rear end of the first leveling plate 23. A substantially plate-shaped second leveling plate (rake) 24 that is pivotably attached to the left and right, and a substantially plate-like extended leveling plate that is foldable and deployable at both left and right ends of the second leveling plate 24 (Extended rake) 25.

  In addition, the leveling body 21 and the machine body 2 are connected by the leveling body setting means 26, and the leveling body 21 is operated in a scraping work state (up and down with respect to the body 2 by operating the operation lever 27 of the leveling body setting means 26. It is selectively set to a movable free state) and a earthing work state (a locked state fixed to the airframe 2).

  On the other hand, at the front end portion of the cover body 16, a plurality of workers (drivers) riding in the driver's seat of the tractor T visually confirm the tilling depth (field scene lower depth) A of the tilling body 11. For example, two mark means 31 are provided so as to protrude downward from the lower end of the front end portion of the cover body 16. That is, the marking means 31 is detachably attached by the attachment means 32 at two locations (for example, near the left end and near the right end) of the front end portion of the cover body 16. The attachment means 32 is, for example, a bolt 33 and a nut 34.

  Here, as shown in FIG. 4, the mark means 31 are arranged side by side at equal intervals in the left-right direction, which is a direction orthogonal to the traveling direction, and the respective lower ends 36 a that are straight in the left-right direction are different. A plurality of, for example, three vertically extending and band-shaped mark portions 36 located at a height are provided.

  The lengths of the mark portions 36 in the vertical direction are different from each other and gradually increase from the outer side toward the inner side. On the contrary, the vertical length of the mark portion 36 may be gradually shortened from the outer side toward the inner side. The mark portion 36 is configured by an elastic body that can be elastically deformed, such as an elongated rectangular rubber plate or a resin plate, for example, an elastic band.

  An upper portion of the mark portion 36 is an attachment portion 37, and the attachment portion 37 is detachably attached to the front surface of the front end portion of the cover body 16 along the front surface by the attachment means 32. That is, the plurality of mark portions 36 are individually detachably attached to the cover body 16.

  A portion of the mark portion 36 other than the attachment portion 37 protrudes downward from the lower end of the front end portion of the cover body 16 and is positioned in front of the tillage body 11. Further, the lower ends 36a of the mark portions 36 are located at different heights, but the upper ends 36b of the mark portions 36 are located at the same height. Further, there is a gap 40 between the mark portions 36 adjacent to each other in the left-right direction, and the gap 40 only needs to be at least as long as the opposite side end portions of the adjacent mark portions 36 do not contact each other.

  The mark portion 36 is positioned rearward of the tire (eg, rear wheel) T1 of the tractor T, that is, shifted laterally from the position overlapping the tire T1 when viewed from the front, and is visible to an operator on the driver seat of the tractor T It is located in the correct position.

  For example, although not shown, the mark portion 36 may be configured to be vertically adjustable with respect to the cover body 16.

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

  When the farm work machine 1 is moved forward by the forward traveling of the tractor T in a field, that is, for example, a paddy field in which water is stored, the tilling work is performed by the tilling body 11 and the ground leveling body 21 is located behind the tilling body 11. Leveling work is performed. That is, the plowing work (plowing leveling work) is performed by the plowing body 11 and the leveling body 21.

  At this time, an operator who rides on the driver seat of the tractor T looks at the mark portion 36 of the mark means 31 while riding on the tractor T, and visually confirms the tilling depth A of the tilling body 11.

  That is, for example, an operator who gets on the driver's seat of the tractor T adjusts the position of the agricultural work machine 1 with respect to the tractor T by operating the three-point link portion of the tractor T. The lower end 36a of the mark portion 36 is made to coincide with the farm scene (the water surface of the farm field), and the lower end 36a of the highest mark portion 36 is made to coincide with the farm scene (the water surface of the farm field) at the second scraping operation. By doing so, the cultivating body 11 performs the cultivating work at the desired cultivating depth A over the entire field during the respective scraping work.

  And according to such a farming machine 1, compared with the conventional structure, it is easy to see the standard of the tilling depth A of the plurality of mark portions 36 arranged in the left-right direction from the worker on the tractor T, that is, the tilling body 11. Therefore, an operator who rides on the tractor T can easily and accurately visually check the tilling depth A of the tilling body 11 at a glance, so that appropriate tilling work can be performed.

  Further, since the plurality of mark portions 36 are arranged side by side in the left-right direction, each mark portion 36 is not affected at all by the bending elastic deformation of the adjacent mark portion 36, and an operator riding on the tractor T The tilling depth A of the tilled body 11 can be more easily visually confirmed, and when the mark portion 36 is damaged, only the damaged mark portion 36 can be replaced.

  Further, since the plurality of mark portions 36 are shifted laterally from the rear position of the tire T1 of the tractor T, the tire T1 of the tractor T does not interfere with visual observation, and an operator riding on the tractor T This makes it possible to more easily visually check the tilling depth A, and does not adversely affect the concave tire marks formed by the passage of the tire T1.

  Further, when the plurality of mark portions 36 can be adjusted in the vertical position with respect to the cover body 16, the vertical position of the mark portion 36 can be adjusted, and the state of the field can be appropriately handled.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  Unlike the first embodiment, the agricultural machine 1 according to the second embodiment includes four mark means 31.

  The two marking means 31 on the left side when viewed from the front are slightly shifted inward and outward from the rear position of the right tire T1 in the direction of travel of the tractor T, and are visually recognized by an operator on the driver's seat of the tractor T. Located in a possible position. Similarly, the two mark means 31 on the right side when viewed from the front are positioned slightly shifted inward and outward from the rear position of the left tire T1 in the direction of travel of the tractor T, and work on the driver's seat of the tractor T It is located at a position where it can be seen from the person. The remaining configuration of the second embodiment is the same as that of the first embodiment.

  And also in the agricultural working machine 1 which concerns on this 2nd Embodiment, the operator who got on the tractor T can show | play the effect of being able to confirm visually easily at a glance the cultivation depth A of the cultivation body 11. FIG. In particular, regarding the marking means 31 shifted from the rear position of the tire T1 to the outer side, an operator riding on the tractor T can easily see using the mirror provided on the side of the tractor T. .

  Note that the number of the mark means 31 is not limited to two or four, and is arbitrary, for example, one, three, or five or more.

  Next, a third embodiment of the present invention will be described with reference to FIG.

  Unlike the first embodiment, the marking means 31 of the agricultural machine 1 according to the third embodiment has a substantially rectangular plate-shaped mounting portion 41 that connects the upper ends of the plurality of marking portions 36. The attaching portion 41 is detachably attached to the front end portion of the cover body 16 by the attaching means 32. That is, the plurality of mark portions 36 are integrated by the mounting portion 41, and the mark means 31 is formed of a single elastic body such as a rubber plate or a resin plate formed in a predetermined shape and elastically deformable. The remaining configuration of the third embodiment is the same as that of the first embodiment.

  And also in the agricultural working machine 1 which concerns on this 3rd Embodiment, the operator who got on the tractor T can show | play the effect of being able to confirm visually easily at a glance the cultivation depth A of the cultivation body 11. FIG. In addition, since the farming machine 1 has a configuration in which the marking means 31 has the mounting portions 41 that connect the respective upper ends of the plurality of marking portions 36, it is not necessary to individually attach the respective marking portions 36 to the cover body 16. The attachment work of the means 31 to the cover body 16 can be facilitated. Note that the shape of the attachment portion 41 is arbitrary, and may be a longitudinal shape that connects the upper ends of the mark portions 36, or the like.

  In the third embodiment, the attachment portion 41 is attached to the front end portion of the cover body 16 in a state where the vertical position cannot be adjusted. It is good also as a structure which becomes possible.

  For example, like the marking means 31 of the agricultural working machine 1 according to the fourth embodiment shown in FIG. 7, a vertically long slot 42 is formed in the mounting portion 41, and the bolt of the mounting means 32 is formed in the slot 42. A configuration in which 33 is inserted may be used.

  Further, for example, as in the mark means 31 of the agricultural machine 1 according to the fifth embodiment shown in FIG. 8, a plurality of substantially circular holes 43 are formed in the mounting portion 41 so as to be spaced apart in the vertical direction. A configuration in which the bolt 33 of the attachment means 32 is inserted into the hole 43 selected from the plurality of holes 43 may be employed.

  The mark means 31 shown in FIG. 7 and FIG. 8 has four mark portions 36 whose lower ends 36a are located at different heights, unlike the first embodiment. The number of the mark portions 36 is arbitrary as long as it is two or more, and may be five or six or more.

  Moreover, although the said 1st-5th embodiment demonstrated the structure where the some mark part 36 was located in a line with the space | interval in the left-right direction, the agricultural work which concerns on 6th Embodiment shown, for example in FIG. As in the mark means 31 of the machine 1, a configuration in which a plurality of (for example, four) mark portions 36 are integrally arranged side by side in the left-right direction may be employed. That is, in this configuration, the lower end portion of the elastic body constituting the mark means 31 is formed in a step shape. For example, although not shown, the mark portion 36 may be configured to be vertically adjustable with respect to the cover body 16.

  And also in the agricultural machine 1 which concerns on this 6th Embodiment, the operator who got on the tractor T can show | play the effect of being able to confirm visually easily at a glance the cultivation depth A of the cultivation body 11. FIG. Moreover, since this agricultural working machine 1 has a configuration in which the marking means 31 is configured such that the plurality of mark portions 36 are continuously arranged side by side in the left-right direction, it is necessary to attach each mark portion 36 to the cover body 16 individually. In addition, it is possible to facilitate the work of attaching the mark means 31 to the cover body 16.

  Next, a seventh embodiment of the present invention will be described with reference to FIGS.

  Unlike the first embodiment, the farm machine 1 according to the seventh embodiment is for an operator riding on the tractor T to visually confirm the tilling depth A of the tiller 11. In addition, there is provided mark means 51 having the function of a front cover body that covers the front portion of the tillage body 11 so that the soil does not scatter forward.

  The marking means 51 is, for example, a single plate-like elastic material that is elastically deformable, such as a rubber plate or a resin plate that is substantially the same as the length in the left-right direction of the cover body 16 and is substantially the same as the length in the left-right direction. The front cover plate 52 is a body.

  The front cover plate 52 is provided at the front end portion of the cover body 16 by the attaching means 32 so as to protrude downward from the lower end of the front end portion. That is, the upper part of the front cover plate 52 is an attachment portion 53, and this attachment portion 53 is detachably attached to the front surface of the front end portion of the cover body 16 along the front surface by the attachment means 32. Then, the portion other than the attachment portion 53 of the front cover plate 52 protrudes downward from the lower end of the front end portion of the cover body 16 and is located in front of the tillage body 11, and as a result, the front portion of the tillage body 11 Substantially the whole is covered with the front cover plate 52.

  Further, the front cover plate 52 is notched at a plurality of lower end portions, for example, at four locations so as to open downward, and is located in a continuous line in the left-right direction, and is aligned in the left-right direction. 56a has a plurality of, for example, three vertically extending strip-shaped mark cutout portions 56 located at different heights.

  That is, three continuous mark notches 56 are formed at four positions on the lower end of the front cover plate 52, and each mark notch 56 is located behind the tire (for example, rear wheel) T1 of the tractor T. The position is shifted laterally from the position overlapping the tire T1 when viewed from the front, and is positioned so as to be visible to the operator on the driver's seat of the tractor T.

  Further, the lengths in the vertical direction of the mark cutout portions 56 are different from each other, and are gradually shortened from the outer side toward the inner side.

  For example, although not shown, a long hole or the like is formed in the front cover plate 52 so that the mark notch portion 56 can be adjusted in the vertical position with respect to the cover body 16, and the front cover plate 52 is formed at the front end of the cover body 16. It is good also as a structure etc. which were attached to the part by the attaching means 32 so that vertical position adjustment is possible.

  And also in this agricultural working machine 1 which concerns on this 7th Embodiment, since it is easy to see several notch parts 56 for a mark arranged in the left-right direction from the worker who got on tractor T compared with the conventional structure, it gets on tractor T. Thus, it is possible to obtain an operational effect such that the operator can easily and accurately visually check the tilling depth A of the tilling body 11 at a glance.

  Moreover, since the front cover plate 52, which is the mark means 51, has the function of a front cover body that covers substantially the entire front portion of the tillage body 11, there is no need to provide a front cover body that is separate from the front cover plate 52. The soil cultivated by the tillage body 11 by the front cover plate 52 can be prevented from scattering forward, and mud soil or the like can be prevented from being applied to the tractor T.

  In addition, since the plurality of mark notches 56 formed in the lower end side of the front cover plate 52 so as to open downward are integrally arranged side by side in the left-right direction, each mark notch It is not necessary to form 56 on the front cover plate 52 individually, and a plurality of mark notches 56 can be easily formed, and the manufacturability of the front cover plate 52 is good.

  In addition, since the plurality of notch portions 56 for mark are shifted laterally from the rear position of the tire T1 of the tractor T, the tire T1 of the tractor T does not interfere with visual observation, and an operator on the tractor T plows. The tillage depth A of the body 11 can be more easily visually confirmed, and it is not adversely affected by the concave tire marks formed by the passage of the tire T1.

  Further, when the plurality of notch portions 56 for marks can be adjusted in the vertical position with respect to the cover body 16, the vertical position of the notch portions 56 for marks can be adjusted, and the state of the field can be appropriately handled. .

  For example, although not shown, a configuration in which a plurality of continuous notch portions 56 each having an upper end 56a positioned at different heights are formed at only one location on the lower end portion of the front cover plate 52, or formed at three or more locations. The structure etc. which were made may be sufficient. Further, the number of the mark notch portions 56 formed at each location of the front cover plate 52 is arbitrary as long as it is two or more, and may be four, five, six or more.

  On the other hand, in the seventh embodiment, the description has been given of the configuration in which the plurality of notch portions 56 for marks are integrally and continuously arranged in the left-right direction. For example, the eighth embodiment shown in FIG. Like the mark means 51 of the agricultural machine 1, a plurality of (for example, three) mark notches 56 are spaced at equal intervals in the left-right direction at a position shifted laterally from the rear position of the tire T 1 of the tractor T. The structure located in a line may be sufficient. That is, in this configuration, there is a belt-like portion 57 between the mark notches 56 adjacent to each other in the left-right direction, and the width of the belt-like portion 57 is substantially the same as the length in the left-right direction of the mark notch 56. .

  And also in the agricultural working machine 1 which concerns on this 8th Embodiment, the operator who got on the tractor T can show | play the effect of being able to confirm visually easily at a glance the cultivation depth A of the cultivation body 11. FIG. .

  Further, for example, like the marking means 51 of the ninth embodiment shown in FIG. 13, a notch 56 for marking is formed on an elastic plate 61 that is a plate-like elastic body that does not have a function of the front cover body. It may be configured.

  Furthermore, in any of the above-described embodiments, for example, as shown in FIGS. 14 and 15, a central working part 71 and an extended working part provided at both ends in the left and right direction of the central working part 71 so as to be foldable and unfoldable. It is possible to apply to the three-fold foldable agricultural machine 1 having 72.

  In the tenth embodiment shown in FIG. 14, mark means 31 having a plurality of mark portions 36 are attached to two positions on the front end portion of the cover body 16 of the central working portion 71, and the cover body 16 of the central working portion 71 is provided. Front cover bodies 73 and 74 that are separate from the marking means 31 are attached to a portion of the front end portion where the marking means 31 is not attached.

  Marking means 31 having a plurality of mark portions 36 is attached to one position of the front end portion of the cover body 16 of each of the left and right extension working portions 72, and the mark means 31 of the front end portions of the cover body 16 of the extension work portion 72 is Front cover bodies 75 and 76 that are separate from the marking means 31 are attached to the parts that are not attached.

  The four mark means 31 have the same shape, and the left mark means 31 is mounted by turning the right mark means 31 upside down. Further, the front cover body 74 of the central working unit 71 and the front cover body 76 of the extension working unit 72 have the same shape.

  For example, in the eleventh embodiment shown in FIG. 15, elastic plates 61, which are mark means 51 having a plurality of mark notches 56, are attached to two locations at the front end of the cover body 16 of the central working unit 71. Front cover bodies 81 and 82 that are separate from the marking means 51 are attached to a portion of the front end portion of the cover body 16 of the central working unit 71 where the marking means 51 is not attached.

  An elastic plate 61, which is a marking means 51 having a plurality of mark notches 56, is attached to one position of the front end portion of the cover body 16 of each of the left and right extension work portions 72. A front cover body 83 separate from the marking means 51 is attached to a portion of the portion where the marking means 51 is not attached.

  The four mark means 51 have the same shape, and the left mark means 51 is mounted by turning the right mark means 51 upside down. Further, the front cover body 82 of the central working unit 71 and the front cover body 83 of the extension working unit 72 have the same shape.

Further, the farm work machine 1 is not limited to a plowing work machine, and may be a rotary work machine that performs a tilling work in a field or a field such as a paddy field before storing water .

  In addition, as a related technique of the present invention, for example, at a position where the height of the front cover body which is a cover means for covering the front portion of the cultivating body 11 is different, a hole portion such as a circle, a triangle, a quadrangle, etc. A configuration in which a concave portion for a mark or a concave portion for a mark is provided is conceivable.

1 Agricultural machine 2 Airframe
11 Tillage
16 Cover body
21 Leveling body
31 Marking means
36 Marking
41 Mounting part
51 Marking means
56 Notch for mark A Tilling depth T Tractor T1 tire

Claims (12)

A fuselage connected to the traveling vehicle;
A plowing body that is provided on this machine and performs plowing work;
A cover body covering the upper part of the tillage body;
A leveling body that performs leveling work behind the tilled body,
It is composed of an elastic body and has flexibility, and is provided at a front end portion of the cover body, and includes a marking means for an operator riding on the traveling vehicle to visually confirm the tilling depth of the tilling body. ,
The farm working machine characterized in that the mark means has a plurality of mark portions that are arranged side by side in the left-right direction and whose lower ends are located at different heights. The agricultural machine according to claim 1, wherein the plurality of mark portions are positioned side by side in the left-right direction. The mark means has an attachment portion that connects the respective upper ends of the plurality of mark portions,
The agricultural working machine according to claim 2, wherein the attachment portion is attached to a front end portion of the cover body. The agricultural machine according to claim 1, wherein the plurality of mark portions are arranged side by side integrally and continuously in the left-right direction. The agricultural machine according to any one of claims 1 to 4, wherein the plurality of mark portions can be vertically adjusted with respect to the cover body. The farm work machine according to any one of claims 1 to 5, wherein the plurality of mark portions are shifted laterally from a rear position of a tire of the traveling vehicle. A fuselage connected to the traveling vehicle;
A plowing body that is provided on this machine and performs plowing work;
A cover body covering the upper part of the tillage body;
A leveling body that performs leveling work behind the tilled body,
It is composed of an elastic body and has flexibility, and is provided at a front end portion of the cover body, and includes a marking means for an operator riding on the traveling vehicle to visually confirm the tilling depth of the tilling body. ,
The farm working machine characterized in that the mark means has a plurality of mark notch portions that are located side by side in the left-right direction and whose upper ends are located at different heights. The agricultural working machine according to claim 7, wherein the plurality of notch portions for landmarks are positioned side by side in the left-right direction. The agricultural working machine according to claim 7, wherein the plurality of notch portions for landmarks are positioned side by side in an integrated manner in the left-right direction. The agricultural working machine according to any one of claims 7 to 9, wherein the plurality of notch portions for the mark can be adjusted in the vertical position with respect to the cover body. The farm work machine according to any one of claims 7 to 10, wherein the plurality of notch portions for the mark are positioned so as to be shifted laterally from the rear position of the tire of the traveling vehicle. The farm working machine according to any one of claims 7 to 11, wherein the mark means has a function of a front cover body that covers a front portion of the tillage body.

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