JP5355212B2 - Agricultural machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an agricultural implement enabling easy upward turning of a ground leveling member by gripping a handle for lifting the ground leveling member. <P>SOLUTION: The agricultural implement 1 is provided with a working machine body 2 and a tilling member 13 rotatably attached to the working machine body 2. The working machine body 2 is provided with the ground leveling member 21 for leveling ground behind the tilling member 13 in a vertically tiltable manner. The ground leveling member 21 has the handle 41 for lifting the ground leveling member. The handle 41 for lifting the ground leveling member is selectively switchable between a using state to position the handle behind a rear end of the ground leveling member 21 and a non-using state to position the handle above the ground leveling member 21. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an agricultural machine that can grip a leveling body lifting handle and easily rotate the leveling body upward.

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

  This conventional farm work machine includes a work machine main body connected to a rear portion of a tractor that is a traveling vehicle, a tiller body that is rotatably provided on the work machine main body and performs a tilling work while rotating, and a vertical work on the work machine main body. And a leveling body that is provided so as to be rotatable and performs leveling work behind the tillage body. And after the completion | finish of work, when removing the adhesion soil adhering to the surface facing a tilling body among leveling bodies, an operator grasps the rear-end part of a leveling body, for example, rotates a leveling body upwards.

JP-A-8-116703

  However, since the weight of the ground leveling body and the attached soil is 40 kg to 50 kg, for example, it is not easy to grip the rear end of the leveling body and rotate the leveling body upward. It is a heavy burden for the operator.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can hold | grip the leveling body lifting handle and can rotate a leveling body easily upwards.

請 Motomeko 1 agricultural machine according includes a work machine body, is provided on the machine body, a tilling member for the tilling, rotatably provided in the vertical direction in the machine body, of the tillage member comprising a ground leveling member for a ground leveling work behind, and a leveling member lifting the upper handle for located behind the rear end of the leveling member, the ground leveling member includes a handle attached portion, the ground leveling body lifting The upper handle is attached to the handle attachment portion, and in this attached state, a use state positioned behind the rear end of the leveling body and a non-use state positioned above the leveling body are selected. Can be switched automatically.

The farm work machine according to claim 2 is the farm work machine according to claim 1, wherein the leveling object lifting handle is attached to the handle attachment part of the leveling object and is detachably attached to the attachment part. And a desorption part having an attached soil scraping part.

請 Motomeko 3 agricultural machine according includes a work machine body, is provided on the machine body, a tilling member for the tilling, rotatably provided in the vertical direction in the machine body, of the tillage member A leveling body that performs leveling work in the rear and a leveling body lifting handle located behind the rear end of the leveling body, the leveling body has a handle mounting portion, and the leveling body above for handle, it has a deposited soil scraping portion, detachably attached to the handle attached portion, but located behind the rear end portion of the ground leveling member in this mounted state.

The farm machine according to claim 4 is the farm machine according to claim 3, wherein the leveling body has a handle holding part for holding the leveling body lifting handle removed from the handle mounting part. There is .

According to the invention of 請 Motomeko 1, since with the leveling member lifting the upper handle for located behind the rear end of the leveling member, the leveling member easily upward by grasping the upper handle for grading body lifting Since the leveling body lifting handle can be switched to a non-use state located above the leveling body, the leveling body lifting handle becomes a hindrance during work. Can be prevented.

According to the second aspect of the present invention, the adhered soil adhered to the leveling body can be scraped off at the adhered soil scraping portion of the detachable portion removed from the attachment portion, so that the adhered soil can be appropriately removed.

According to the invention of 請 Motomeko 3, comprising a leveling member lifting the upper handle for located behind the rear end of the leveling member, the leveling member easily upward by grasping the upper handle for grading body lifting Since the leveling body lifting handle can be removed from the mounting portion, it is possible to prevent the leveling body lifting handle from becoming a hindrance during work. Since the adhered soil adhered to the leveling body can be scraped off at the adhered soil scraping portion of the leveling body lifting handle removed from the attachment portion, the adhered soil can be appropriately removed.

According to the invention according to claim 4 , since the leveling body lifting handle removed from the handle mounting portion can be held by the handle holding portion, the leveling body lifting handle is not lost. Further, it is not necessary to separately secure a space for storing the leveling object lifting handle .

It is a side view of the agricultural working machine which concerns on the 1st Embodiment of this invention. It is a side view of the state which lifted the leveling body of the agricultural working machine same as the above. It is a top view of an agricultural working machine same as the above. It is a front view of the handle attachment part of the leveling body of an agricultural working machine same as the above. 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. It is a side view of the handle attachment part of the leveling body of an agricultural working machine same as the above. It is a front view of the handle attachment part of a leveling body same as the above. It is AA sectional drawing of FIG. It is a partial top view of the agricultural machine concerning the 4th Embodiment of this invention.

  A first embodiment of an agricultural machine according to 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 connected to a rear portion of a tractor (not shown) that is a traveling vehicle, and moves forward through the field (leftward in FIG. 1) by traveling of the tractor. For plowing and leveling work.

  The farm work machine 1 includes a work machine main body 2 connected to a three-point link hitch part (work machine lifting support part) that the tractor has at the rear.

  The work machine main body 2 has a tractor connecting portion 4 which is a traveling vehicle connecting portion connected to a three-point link hitch portion of the tractor. The tractor connecting portion 4 includes a center top mast 5 and a pair of left and right lower arms 6. Etc.

  Further, the work machine body 2 has a frame portion 7 such as a frame pipe having a longitudinal shape and a substantially circular cross section in the left-right direction. It has been. The shaft holder 8 is rotatably provided with an input shaft 9 in a substantially front-rear direction for inputting power from the tractor. The input shaft 9 is a power transmission means (for example, a PTO shaft of the tractor, which is constituted by a joint and a transmission shaft). (Not shown).

  Further, the work machine body 2 includes a chain case portion 11 provided at the left end portion which is one end portion in the longitudinal direction of the frame portion 7 and a bracket portion 12 provided at the right end portion which is the other end portion in the longitudinal direction of the frame portion 7. And have. A gauge wheel 10 is attached to the work machine body 2.

  The chain case 11 and the bracket 12 that are opposed to each other are rotatably mounted with a cultivating body 13 that performs a cultivating operation while rotating in a predetermined direction by power from the input shaft 9 side. That is, the rotary type tiller 13 is rotatably provided on the work machine body 2. The cultivating body 13 includes a rotating shaft 14 in the left-right direction that is rotatably mounted on the chain case portion 11 and the bracket portion 12, and a plurality of cultivating units that are attached to the rotating shaft 14 and rotate together with the rotating shaft 14 to perform tilling work. Claw 15.

  Further, the work implement body 2 has a substantially arcuate plate-like cover portion 17 that protrudes upward and covers the upper portion of the tillage body 13. At the rear end of the cover part 17, a horizontal plate-like leveling body (level plate) 21 that performs leveling work behind the tillage body 13 is rotated in the vertical direction via a plurality of hinges 20. It is provided to be movable. That is, for example, the front end portion of the leveling body 21 is attached to the rear end portion of the cover portion 17 of the work machine body 2 so as to be rotatable about the left and right axis 22 of the hinge 20. It can be rotated in the vertical direction with respect to the cover portion 17 so that the end portion moves up and down.

  The leveling body 21 has a substantially flat plate-shaped leveling body portion 23 that is longitudinal in the left-right direction for performing leveling work. Rod connecting portions 24 project from the left and right sides of the upper surface of the leveling main body 23, and rods 25 are connected to the rod connecting portions 24 via rotating members 26 such as tumblers. Each rod connecting portion 24 is constituted by, for example, opposing plates 24a that are spaced apart from each other.

  The rod 25 is slidably inserted into the insertion hole 27 of the rotating member 26, and the front end portion of the rod 25 can be rotated about a shaft 29 in the left-right direction by a rod connecting portion 28 protruding from the frame portion 7. Is attached.

  A first spring 31 and a second spring 32 for adjusting the ground pressure of the leveling body 21 are disposed on the outer peripheral side of the rod 25. Further, on the outer peripheral side of the rod 25, the leveling body 21 is released to the lifting state shown in FIG. 2 with respect to the cover portion 17 (the maintenance state in which the substantially plate-shaped leveling body 21 is in a horizontal posture substantially along the horizontal plane). Fixing means 33, which is a fixing tool for agricultural machines that can be fixed, is provided.

  The fixing means 33 includes, for example, a fixing pin 34 that is removably inserted into a pin insertion hole of the rod 25, an operating lever 35 for releasing the fixing, a spring that biases the operating lever 35, and the like. (For example, see Design Registration No. 1083565).

  On the other hand, the leveling body 21 has a handle attachment part 40 attached to one of the pair of left and right rod connecting parts 24, for example, the left rod connecting part 24 so as to straddle both opposing plates 24a. ing. That is, the leveling body 21 has the handle mounting portion 40 on the upper surface side of the rear end portion.

  In the handle mounting portion 40, a leveling body lifting handle (handle) 41, which is an extended body having the function of an attached soil scraping tool, can be rotated in the vertical direction about a horizontal axis 42. It is attached.

  The leveling body lifting handle 41 is in a use state in which at least a part is positioned behind the rear end portion of the leveling body 21 by rotating downward with respect to the handle mounting portion 40, that is, for example, the rear end of the leveling body 21 It is switched to the use state located in the state which protruded back from the handle mounting part 40 of the part. In addition, the leveling body lifting handle 41 is entirely located above the leveling body 21 (near the upper position) so that it does not interfere with the tilling work by turning upward with respect to the handle mounting portion 40. The state is switched to a non-use state, for example, in a state of protruding upward from the handle mounting portion 40 of the leveling body 21. That is, the leveling object lifting handle 41 can be selectively switched between the use state and the non-use state (storage state) by turning around the shaft 42.

  The handle attachment portion 40 has, for example, the shape shown in FIG. 4, and has an attachment portion 44 having a substantially rectangular shape in side view and a substantially U-shaped cross section, and a pentagonal shape in side view fixed to the attachment portion 44. And a substantially U-shaped attached portion 45. A mounting hole 46 is formed in the mounting portion 44. A fulcrum hole 51, a use state hole 52, and a non-use state hole 53 are formed in the attached portion 45.

  Then, the pin 54 is inserted and held in the mounting hole 47 of the rod connecting portion 24 and the mounting hole 46 of the mounting portion 44 that are matched with each other, so that the mounting portion 44 of the handle mounting portion 40 is attached to the rod connecting portion 24. It has been.

  The leveling body lifting handle 41 includes a substantially cylindrical mounting portion 56 that is curved at one intermediate position, and a detachable portion 57 that is detachably attached to the mounting portion 56. A fulcrum hole 58 is formed at one end of the mounting portion 56, a mounting hole 59 is formed at the other end of the mounting portion 56, and a state fixing hole 60 is formed at an intermediate portion of the mounting portion 56. Yes.

  The detachable portion 57 includes a rod-shaped portion 61 having a substantially circular cross section, and a plate-shaped attached soil scraping portion 62 fixed to an end portion of the rod-shaped portion 61. A mounting hole 63 is formed at one end of the rod-shaped portion 61, and an attached soil scraping portion 62 is integrally provided at the other end of the rod-shaped portion 61.

  Then, when the shaft 42 as a pin is inserted and held in the fulcrum hole 51 of the attached portion 45 and the fulcrum hole 58 of the attachment portion 56 that match each other, the attachment portion 56 becomes the attachment portion of the handle attachment portion 40. It is attached to 45 so as to be rotatable about a shaft 42.

  In addition, one end of the rod-shaped portion 61 of the detachable portion 57 is inserted into the other end of the mounting portion 56, and the mounting hole 59 of the mounting portion 56 and the mounting hole 63 of the rod-shaped portion 61 of the detachable portion 57 are aligned with each other. By inserting and holding the pin 55, the rod-shaped portion 61 of the detachable portion 57 is attached to the attachment portion 56. In addition, by removing the pin 55 from the mounting holes 59 and 63, the detachable portion 57 can be removed from the mounting portion 56.

  Further, as shown by the solid line in FIG. 1, the pin 64 is inserted and held in the use state hole 52 of the attached portion 45 and the state fixing hole 60 of the attachment portion 56, which are in alignment with each other. The handle 41 is fixed in use with respect to the handle mounting portion 40. In addition, by removing the pin 64 from the use state hole 52 and the state fixing hole 60, the leveling body lifting handle 41 can be rotated with respect to the handle attachment portion 40.

  Further, as shown by a two-dot chain line in FIG. 1, the ground leveling body is obtained by inserting and holding the pin 64 in the non-use state hole 53 of the attached portion 45 and the state fixing hole 60 of the attachment portion 56 that coincide with each other. The lifting handle 41 is fixed to the handle attachment portion 40 in a non-use state. In addition, by removing the pin 64 from the non-use state hole 53 and the state fixing hole 60, the leveling body lifting handle 41 can be rotated with respect to the handle attachment portion 40.

  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 traveling of the tractor, the cultivating body 13 performs the cultivating work, and the ground leveling body 21 performs the leveling work behind the cultivating body 13. During this tilling work, soil such as mud soil adheres to the lower surface (inner surface), which is the surface facing the tilled body 13 of the leveling body 21, as adhering soil A.

  When the attached soil A is removed from the leveling body 21 after the completion of the plowing work, the operator rotates the leveling body lifting handle 41 in an unused state downward with respect to the leveling body 21 about the shaft 42. Thus, the non-use state is switched to the use state, and the leveling body lifting handle 41 is projected backward from the rear end portion of the leveling body 21.

  Then, the operator protrudes rearward from the rear end portion of the leveling body 21, and the distance from the shaft 22 that is the rotation fulcrum of the leveling body 21 is larger than that of the rear end portion of the leveling body 21. The leveling body lifting handle 41 that is in a long state is held and the leveling body 21 is lifted. That is, the leveling body lifting handle 41 located behind the rear end portion of the leveling body 21 is held, and the leveling body 21 is rotated upward to obtain a desired lifting state. When the leveling body 21 is in the lifting state, the leveling body 21 is fixed in the lifting state by the fixing means 33 as shown in FIG.

  In this state, the operator removes the attachment / detachment portion 57 of the leveling body lifting handle 41 from the attachment portion 56, and uses the attached soil scraping portion 62 of the removed attachment / detachment portion 57 to adhere to the leveling body. Soil A is scraped off and removed.

  Thus, according to the farm work machine 1, since at least a part protrudes rearward from the rear end of the leveling body 21 and includes the leveling body lifting handle 41 positioned rearward of the rear end, Compared to the conventional method of grasping the rear end of the leveling body 21 and rotating the leveling body 21 upward, the moment of force around the axis 22 required to lift the leveling body 21 can be reduced, and therefore the leveling The leveling body 21 can be easily rotated upward by grasping the body-holding handle 41.For example, even an elderly worker can bring the leveling body 21 into a desired lifting state. The attached soil A can be removed.

  Further, the leveling body lifting handle 41 can be selectively switched between the use state and the non-use state, and the leveling body lifting handle 41 can be switched to the non-use state located above the leveling body 21. In this case, it is possible to prevent troubles that the leveling body lifting handle 41 is in the way during plowing or when transporting the agricultural machine 1, for example, the leveling body 21 with the leveling body lifting handle 41 attached to the leveling body 21. The leveling work can be done with.

  Furthermore, the attached soil A attached to the leveling body 21 can be scraped off by the attached soil scraping part (scraper part) 62 of the detachable part 57 removed from the attachment part 56 of the leveling body lifting handle 41. The soil A can be removed appropriately, and, for example, other attached soil scraping tools (work tools) for scraping the soil are unnecessary.

  In the first embodiment, the structure in which the handle attachment portion 40 is attached to the rod connecting portion 24 so as to straddle the left and right opposing plates 24a has been described. For example, the second embodiment shown in FIG. As in this embodiment, the attachment portion 44 of the handle attachment portion 40 may be attached to one opposing plate 24a at a side position of the rod connecting portion 24.

  The leveling body lifting handle 41 is not limited to the configuration in which the leveling body lifting handle 41 is attached to the handle mounting portion 40 of the leveling body 21 so as to be rotatable in the vertical direction. A configuration in which the rear end portion of the body 21 is provided so as to be movable in the front-rear direction, a configuration in which the leveling body lifting handle 41 is provided in the rear end portion of the leveling body 21 so as to be rotatable in the left-right direction, Further, for example, as in the third embodiment shown in FIG. 6, the leveling body lifting handle 41 is detachably attached to the handle mounting portion 40 and is positioned behind the rear end portion of the leveling body 21. But you can.

  In the third embodiment shown in FIG. 6, the leveling body 21 includes a handle mounting portion 40 having the shape shown in FIGS. 7 and 8, and a leveling body for lifting the leveling body removed from the handle mounting portion 40. A plurality of, for example, two handle holding portions 70 for holding the handle 41 are provided.

  The handle mounting portion 40 has a substantially cylindrical mounting portion 45 fixed to the mounting portion 44, and as shown in FIG. The proximal end side of the handle 41 is inserted in a detachable manner.

  The overall shape of the leveling body lifting handle 41 is shown in FIG. 6, and the leveling body lifting handle 41 is different from that shown in FIG. It consists only of a portion 71 and a plate-like attached soil scraping portion 72 fixed to the end of the rod-like portion 71. That is, the leveling body lifting handle 41 of FIG. 6 has an attached soil scraping portion 72 for scraping the attached soil A on the distal end side, and the attached portion 45 of the handle attached portion 40 on the proximal end side. An insertion portion 73 for insertion is provided.

  For example, as shown in FIG. 9, the handle holding unit 70 is configured by an elastically deformable plate member that is bent at a plurality of locations, and includes a handle storage unit 75 in which the leveling body lifting handle 41 is stored. The handle storage portion 75 has an inlet / outlet portion 76 for taking in and out the leveling body lifting handle 41. That is, the handle holding part 70 has an attachment plate 77 attached to the upper surface of the leveling main body 23, and opposed plates 78 that are spaced apart from each other are integrally provided at both ends of the attachment plate 77. The opposing plate 78 includes a first plate portion 81 that is positioned at right angles to the mounting plate 77, and a first plate portion that protrudes from the tip portion of the first plate portion 81 toward the opposing plate 78 side. A second plate portion 82 that is inclined with respect to 81, and a second plate portion 82 that protrudes from the tip of the second plate portion 82 toward the opposite side of the opposing plate 78. And a third plate portion 83 positioned in an inclined shape.

  Then, by pressing the rod-like portion 71 of the leveling body lifting handle 41 against both the third plate portions 83 of the handle holding portion 70 and elastically deforming the opposing plates 78 in the direction in which the doorway portion 76 opens, the leveling body A part of the rod-like portion 71 of the lifting handle 41 is stored in the handle storage portion 75. The stored rod-like portion 71 is held by the mounting plate 77 and the second plate portions 82, and the leveling body lifting handle 41 is fixed in a state substantially along the upper surface of the leveling main body portion 23. Also, when removing the leveling body lifting handle 41 from the handle holding part 70, pull the leveling body lifting handle 41 away from the leveling body 23 and elastically move both opposing plates 78 in the direction in which the doorway 76 opens. What is necessary is just to change.

  The remaining configuration of the third embodiment is the same as that of the first embodiment.

  In the third embodiment, the leveling body lifting handle 41 can be held and the leveling body 21 can be easily rotated upward as in the first embodiment. It is possible to prevent the trouble that the leveling body lifting handle 41 becomes an obstacle at times, and further, the adhered soil A can be appropriately removed by the adhered soil scraping portion (scraper portion) 72, and the handle mounting portion 40 Since the leveling body lifting handle 41 that has been removed from the machine can be held by the handle holding part 70, the leveling body lifting handle 41 is not lost, and the leveling body lifting handle 41 is stored. There is no need to secure a separate space for storage.

  In the third embodiment, the structure in which the handle attachment portion 40 is attached to the rod connecting portion 24 so as to straddle the left and right opposing plates 24a has been described. For example, the fourth embodiment shown in FIG. As in this embodiment, the attachment portion 44 of the handle attachment portion 40 may be attached to one opposing plate 24a at a side position of the rod connecting portion 24.

  On the other hand, in any of the embodiments, the configuration in which the handle attachment portion 40 is attached to only one of the left and right rod connection portions 24 has been described. However, the handle attachment portion 40 is connected to both rod connection portions 24. Each of the configurations may be attached.

  Further, the leveling body lifting handle 41 may not have the attached soil scraping portions 62, 72, for example, constituted of only one rod-like member, constituted of a stretchable rod-like member, What provided the substantially circular annular holding part in the front-end | tip part of a rod-shaped member may be used.

  Further, the attached soil scraping portions 62 and 72 are not limited to plate-like ones, and may be, for example, comb-like ones, sickle-like ones, rod-like ones with sharp tips, or the like.

1 Agricultural work machine 2 Work machine body
13 Tillage
21 Leveling body
40 Handle mount
41 Handle for leveling
56 Mounting part
57 Desorption part
62, 72 Adhesive soil scraping part
70 Handle holder

Claims (4)

The work machine body,
A cultivating body that is provided in the working machine body and performs a cultivating work,
A leveling body which is provided in the work machine body so as to be rotatable in the vertical direction, and performs leveling work behind the tillage body;
With a leveling body lifting handle located behind the rear end of the leveling body,
The leveling body has a handle mounting portion,
The leveling body lifting handle is attached to the handle attachment portion, and in this attached state, the use state is located behind the rear end of the leveling body and the non-positioning position is located above the leveling body. agricultural working machine characterized that it is selectively switchable in use. The handle for leveling the body is
An attachment part attached to the handle attachment part of the leveling body,
Removably attached to the attachment portion, agricultural machine according to claim 1, characterized by having a desorption part having attachment soil scraping portion. The work machine body,
A cultivating body that is provided in the working machine body and performs a cultivating work,
A leveling body which is provided in the work machine body so as to be rotatable in the vertical direction, and performs leveling work behind the tillage body;
With a leveling body lifting handle located behind the rear end of the leveling body,
The leveling body has a handle mounting portion,
Handle for over said ground leveling body lifting may have a deposited soil scraping portion, detachably attached to the handle attached portion to be located rearward of the rear end portion of the ground leveling member in this mounted state agricultural working machine it said. The agricultural implement according to claim 3, wherein the leveling body has a handle holding part for holding the leveling body lifting handle removed from the handle mounting part.

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