JP2002017110A - Agricultural implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agricultural implement capable of improving working efficiency without causing an unworked area in an old ridge. SOLUTION: A ridging machine 1 which is the agricultural implement is equipped with a frame 2 at the side of a tractor, the primary connecting arm body 23 capable of adjusting circulation centering around a central axis Y1 of the circulation in the vertical direction at the one end and the secondary connecting arm body 35 capable of adjusting circulation centering around a central axis Y2 of the circulation in the vertical direction at the one end. A frame 51 at the side of operation is installed to the other end of the secondary connecting arm body 35 and a soil-working means 45 capable of setting to an advancing operation position and a receding operation position is installed to the frame 51 at the side of operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural machine used by being mounted on a tractor.

[0002]

2. Description of the Related Art As a conventional agricultural working machine, for example, a machine frame that can be attached to the rear of a tractor is provided. There is known a ridge coater having a structure in which the ridge is protruded and attached.

[0003] When the tractor moves forward, the ridge coater moves together with the tractor, and the soil in the field is plowed up by a soil working means projecting from the right end position of the tractor of the ridge coater, and the tractor is flipped up. The jumped soil is painted on the old ridge.

[0004]

However, the above-mentioned conventional furrowing machine performs furrowing work on an old furrow by a distance corresponding to the longitudinal dimension of the tractor at an end of a field, for example. Since the work cannot be performed, the worker has to manually perform the ridge painting work on the unworked portion of the old ridge, which has a problem of poor work efficiency.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide an agricultural work machine capable of improving work efficiency.

[0006]

According to a first aspect of the present invention, there is provided an agricultural working machine, comprising: a tractor-side frame connected to a tractor; one end of the tractor-side frame rotatably connected to the tractor-side frame; A first connection arm body that is rotatable about a moving center axis, and one end is rotatably connected to the other end of the first connection arm; A second connecting arm body that is rotatable about an axis, a working frame connected to the other end of the second connecting arm body, and the first connecting member attached to the working frame. By rotation adjustment of the arm body about the rotation center axis and rotation adjustment of the second connecting arm body about the rotation center axis,
Earth working means which is set to a forward working posture in which earth work can be performed based on the forward running of the tractor and a backward working posture in which earth working can be performed based on the backward running of the tractor.

In this configuration, the earth work means can be set to the forward working posture and the backward working posture by adjusting the rotation of the first connecting arm and the turning of the second connecting arm. Work can be performed over a long period of time, and work efficiency is improved. Further, since the working side frame is connected to the tractor side frame via the first connection arm body and the second connection arm body that can both be rotationally adjusted, the tractor side frame has a linear shape. The earthworking means can be set at a front position closer to the tractor as compared with a configuration in which the working side frames are connected via a connecting arm body.

According to a second aspect of the present invention, there is provided the agricultural working machine according to the first aspect, wherein the connecting portion between the tractor side frame and the first connecting arm body and the connecting portion between the working side frame and the second connecting arm body. The separation distance between the earth working means is set to be longer than the separation distance when the earth working means is in a forward working posture, and the separation working posture is set to be longer than the separation distance when the earth working means is in a forward working posture. The projecting dimension of the earth working means to the one side with respect to the tractor is set to be larger than the projecting dimension of the earth working means in the forward working posture to the other side with respect to the tractor.

In this configuration, the separation distance in the backward operation posture of the earth work means can be set to be longer than the separation distance in the forward operation posture of the earth work means. The projecting dimension to one side can be set to be larger than the projecting dimension of the earthworking means in the forward working posture to the tractor to the other side, causing problems during reversing work, for example, crushing a new ridge with wheels , It is possible to prevent the wheels from dropping into the recesses in the field scene, etc., and to set the position of the earth work means at the time of forward work closer to the tractor, and to balance the front and rear of the tractor at the time of work and movement Becomes better.

According to a third aspect of the present invention, there is provided the agricultural working machine according to the first or second aspect, further comprising a power transmission shaft for transmitting a driving force from the tractor to the earth working means side, the tractor-side frame and the working-side frame. Are connected only by two members, that is, the first and second connection arm members and the power transmission shaft member, which are connected to each other.

In this configuration, the tractor-side frame and the working-side frame are connected by only two members, that is, the power transmission shaft, the first connection arm, and the second connection arm. Therefore, the configuration is simple, the weight of the whole agricultural work machine is light, and it is most suitable for a small tractor.

According to a fourth aspect of the present invention, there is provided the agricultural work machine according to any one of the first to third aspects, wherein the soil working means includes: a rotary for tilling and lifting the soil for furrowing; And the soil that has been flipped up is applied to the old ridges to form a ridge.

[0013] In this configuration, the levee-coating work for applying the leached soil to the old ridges and adjusting the ridges is performed efficiently and appropriately.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of a ridger according to the present invention will be described below with reference to the drawings.

1 to 5, reference numeral 1 denotes a ridge coating machine as an agricultural working machine. The ridge coating machine 1 is detachably mounted on a tractor T and is towed to perform ridge coating work.

The levee coating machine 1 includes a tractor-side frame 2 which is a substantially symmetrical fixed machine frame connected to the rear end of the tractor T. It is arranged at the front side position which is the side facing T.

The tractor-side frame 2 includes a ridge coating machine 1
A box-shaped base portion 3 having a substantially rectangular parallelepiped shape opened toward the rear of the vehicle, and a three-point connection portion 4 serving as a tractor connection portion is provided on the base portion 3 so as to project forward toward the tractor T side. The three-point link mechanism T of the tractor T is
1 is detachably connected. In addition, the three-point connecting part 4
Is a top mast 6 having a top pin 5, a lower pin 7
And a pair of left and right lower arms 8, 8 and the like.

An input shaft rotatably supported by a bearing portion 11 is provided at a central position in the left-right direction below the base portion 3.
The tractor T has a PTO shaft (not shown) connected to a front end side of the input shaft 12 via a universal joint or the like.
One end side of a shaft main body member 13c of a power transmission shaft body 13 which is extendable and contractible in the axial direction is connected to a base end side via a connecting member 13a. As shown in FIG. 5, a protective cover 14 is attached to the outer peripheral side of the power transmission shaft 13. This protective cover
The rotation of 14 is restricted by a chain (not shown) so as not to rotate integrally with the power transmission shaft 13.

Further, a first support shaft 15 as an arm connecting portion whose axial direction coincides with the vertical direction is provided at the center of the upper part of the base portion 3 in the left-right direction. The shaft body 15 is supported by an upper plate portion 16 and an intermediate plate portion 17 which are vertically opposed to each other. Note that the input shaft 12 and the first
The input shaft 12 and the first support shaft 15 are respectively arranged at right angles to the horizontal direction of the tractor T when viewed from a plane as shown in FIG. Are always located on the center line X in the left-right direction, which is a line connecting the centers of.

A pair of left and right side plates 18, 1 of the base 3 are provided.
One of the side plates 19 of FIG. 9, that is, the right side plate 19 in FIG. 1, has a dimension in the width direction that is the front-rear direction of the ridger 1 set to be shorter than the left side plate 18. ing.
Also, on the inner surface side of the right side plate portion 19, a pair of pin holding plates 21, 2 as a pair of pin holding bodies vertically spaced apart from each other.
1 is fixed in a horizontal plane along the inner surface of the right side plate portion 19.

Each pin holding plate 21 is formed in an elongated rectangular plate shape having a longitudinal direction in the front-rear direction of the ridge coating machine 1, and one end in the longitudinal direction is located on the rear side of the ridge coating machine 1 from the left side plate portion 18. And protrudes rearward of the ridger 1 from the rear ends of the upper plate portion 16 and the intermediate plate portion 17. A pin insertion hole 22 penetrating vertically is formed at one protruding end of each pin holding plate 21.

As shown in FIGS. 1 to 5, the ridge coating machine 1 has a base end, which is one end in the longitudinal direction, rotatably connected to the tractor-side frame 2, and has a base end which is this end. And a first connecting arm 23 having an elongated shape that is rotatable about a vertical center axis Y1 (a line passing through the axis of the first support shaft 15) in the vertical direction. The first connecting arm body 23 reciprocates along the horizontal plane at the distal end, which is the other end, by pivoting about the pivot axis Y1 at the proximal end. The first connecting arm body 23 is formed of, for example, only one square tube-shaped arm forming member 24 formed in a straight line in the longitudinal direction without being bent in the middle of the longitudinal direction.

The first connecting arm body 23 has a first connecting portion 25a in the form of an elongated cylinder which is open vertically and is formed on the base end side which is one end side in the longitudinal direction. Part 2
A first support shaft 15 is rotatably inserted and held in 5a. A second connecting portion 25b having the same shape as the first connecting portion 25a and having an elongated cylindrical shape and opening vertically is formed on the distal end side, which is the other end in the longitudinal direction of the first connecting arm body 23. Have been.

On the lower surface of the central portion of the first connecting arm body 23 in the longitudinal direction, a connecting shaft portion whose axial direction coincides with the vertical direction is provided.
26 is formed to protrude downward, and this connecting shaft portion 26 is formed.
One end in the longitudinal direction of an elongated plate-shaped first fixed body 27 that restricts the rotation of the first connected arm body 23 and fixes the first connected arm body 23 to the tractor-side frame 2. Are rotatably connected. The first fixed body 27 is swingably arranged along a horizontal plane with one end in the longitudinal direction as a center, and a first hole penetrating through the upper and lower surfaces in the central part in the longitudinal direction.
An opening 28 is formed, and a second hole 29 penetrating the upper and lower surfaces is formed at the free end, which is the other end in the longitudinal direction.

Further, on one side surface (the right side surface in FIG. 1) of the first connecting arm body 23 along the longitudinal direction, a pair of pin holding members which are vertically opposed to each other are provided at a substantially central position in the longitudinal direction. The one-side pin holding plate portions 31, 31 are formed so as to protrude in a horizontal plane toward the side.
Is formed with a pin insertion hole 32 penetrating vertically.

The other side surface (the left side surface in FIG. 1) along the longitudinal direction of the first connecting arm body 23 is vertically spaced apart from a position near the distal end from a substantially central position in the longitudinal direction. The other side pin holding plate portion 3 as a pair of opposing pin holding bodies
3, 33 are formed to protrude in the horizontal plane toward the side,
Pin insertion holes vertically penetrated in each other side pin holding plate 33
34 are formed. The one-side pin holding plate 31 and the other-side pin holding plate 33 are formed in the same shape. As shown in FIG. 4, the first connecting arm body 23 is located in an inclined shape that is gradually inclined downward from the base end on the tractor-side frame 2 side toward the distal end.

Further, as shown in FIGS. 1 to 5, in the ridge coating machine 1, the base end side, which is one end side, is rotated at the distal end side of the first connecting arm body 23 opposite to the tractor side frame 2. And a second connecting arm body 35 having an elongated shape which is connected to the main body so as to be rotatable about a center axis Y2 in the vertical direction on the base end side, which is one end side. The arm body 35 reciprocates along the horizontal plane at the distal end, which is the other end, by pivoting about the pivot axis Y2 at the proximal end.

The second connecting arm body 35 includes, for example, a single rectangular cylindrical arm member 36 formed linearly in the longitudinal direction, and a cross-section fixedly attached to one end of the arm member 36. It is composed of a U-shaped connecting member 37 and the like.

The connecting member 37 is connected to an upper plate 3 which is connected to a mounting plate 37a along the vertical plane and is vertically opposed to each other.
7b and a lower plate portion 37c. The second support shaft 38 is supported by the upper plate portion 37b and the lower plate portion 37c.
The axial direction of the support shaft 38 coincides with the vertical direction, and the second support 38 is arranged in parallel with the first support 15.

As shown in FIG. 5, the second support shaft 38 is rotatably inserted into and held in the second connection portion 25b on the distal end side of the first connection arm body 23. The second connecting arm body 35 is a line passing through the axis of the second support shaft body 38,
That is, the rotation can be adjusted with respect to the first connecting arm body 23 about the rotation center axis Y2.

The arm member 36 has one end in the longitudinal direction fixed to the mounting plate 37a of the connecting member 37, and a connecting shaft portion whose axial direction coincides with the vertical direction on the upper surface near the center in the longitudinal direction.
48 is formed to protrude upward, and this connecting shaft portion 48
In the longitudinal direction of the elongated plate-shaped second fixed body 39 for restricting the rotation of the second connected arm body 35 and fixing the second connected arm body 35 to the first connected arm body 23, Are rotatably connected at one end. The second fixed body 39 is arranged so as to be able to swing along a horizontal plane around one end in the longitudinal direction, and an insertion hole 40 penetrating through the upper and lower surfaces at the free end, which is the other end in the longitudinal direction. An opening is formed.

Further, at the other end in the longitudinal direction of the arm member 36, for example, a plurality of, for example, two adjusting holes 41, 41 for vertically adjusting the offset amount are formed. The two adjusting holes 41, 41 are arranged side by side in the longitudinal direction of the arm member 36 with an interval therebetween. In addition, as shown in FIG. 5, the second connecting arm body 35 is located horizontally, unlike the first connecting arm body 23 having an inclined shape.

Then, as shown in FIG. 1, the first fixed body
27 and the pin holding plate 21 of the tractor-side frame 2.
The first hole 28 and the pin insertion hole 22 are inserted into the first hole 28 and the pin insertion hole 22 with the pin insertion hole 22
Of the second fixed body 39 and the pin insertion hole 32 of the one side pin holding plate portion 31 of the first connecting arm body 23 are vertically aligned. In this state, when the second operation pin 44 as an operation body is inserted into the insertion hole 40 and the pin insertion hole 32 and attached, the first connection arm body 23 and the second connection arm body 35 are attached. The earth working means 45 is fixed to the tractor-side frame 2 and is set in a forward working posture in which levee painting work can be performed based on the forward running of the tractor T. In this state, the second
The rotation center axis Y2 of the connecting arm body 35 is not located on the left-right center line X of the tractor T, but is shifted from the left-right center line X by a predetermined distance to the right side, which is one side of the tractor T. To position. In addition, the second connecting arm body 35 is located in a state where the longitudinal direction of the second connecting arm body 35 substantially coincides with the left-right horizontal direction of the ridge coating machine 1.

Further, as shown in FIG. 2, only the first operation pin 43 is once removed from the forward working posture state of the earth work means 45 in FIG. 1, and the first connecting arm body 23 is moved to the rotation center axis Y.
The first fixed body 27 and the pin insertion hole 22 of the pin holding plate 21 of the tractor side frame 2 are rotated up and down by a predetermined amount around the first joint body 35 together with the second connecting arm body 35 and the like. When the first operation pin 43 is inserted into the second hole 29 and the pin insertion hole 22 and re-attached, the first
The connecting arm body 23 and the second connecting arm body 35 are fixed to the tractor-side frame 2, and the earth working means 45 is set to the non-working posture located at the rear position of the tractor T. In this state, the second connecting arm body 35
Of the tractor T in the horizontal direction X
It is not located above, but is located at a position shifted by a predetermined distance to the left side, which is the other side of the tractor T, from the center line X in the left-right direction.

Further, as shown in FIG. 3, from the non-working posture state of the earth working means 45 of FIG.
The second connecting arm body 35 is rotated by a predetermined amount about the rotation center axis Y2 while the first connecting arm body 23 is fixed, and the insertion hole of the second fixed body 39 is fixed. 40
And the pin insertion hole 34 of the other side pin holding plate portion 33 of the first connecting arm body 23 is aligned vertically, and the second operation pin is inserted into these insertion hole 40 and the pin insertion hole 34. When the tractor T is reattached by passing through it, the first connecting arm body 23 and the second connecting arm body 35 are fixed to the tractor-side frame 2, and the earthworking means 45 is lifted based on the retreat of the tractor T. The state is set to the retreating work posture in which the painting work is possible.

In this state, the second connecting arm body
The 35 rotation center axis Y2 is not located on the center line X in the left-right direction of the tractor T, but is located at a position shifted by a predetermined distance from the center line X in the left-right direction on the other side of the tractor T to the left.
Further, the second connecting arm body 35 is a second connecting arm body 35.
Is located in a state where the longitudinal direction of the ridge coating machine 1 substantially coincides with the left-right horizontal direction.

On the other hand, the ridger 1 is shown in FIGS.
As shown in the figure, the working side frame 51 which is a movable movable machine frame that supports the earth working means 45 whose posture can be changed to the forward working posture, the non-working posture and the backward working posture as described above is provided. The working-side frame 51 is attached to the distal end side of the second connecting arm body 35, and according to the rotation adjustment of the first connecting arm body 23 and the rotation adjustment of the second connecting arm body 35, The rotation can be adjusted together with the working means 45. Further, the working side frame 51 is provided with the second connecting arm body 35.
The tip end of the ridger 1 can be reciprocated linearly along the left-right direction so that the position of the earthworking means 45 in the left-right direction can be adjusted, that is, the distance from the left-right center line X of the tractor T can be adjusted. ing.

The working-side frame 51 has a quadrangular cylindrical arm connecting portion 52 having one end opened. In the arm connecting portion 52, the distal end of the arm member 36 of the second connecting arm body 35 is provided. It is slidably inserted.

Then, the arm connecting portion of the working side frame 51
A pin insertion hole 54 formed in the second connecting arm body 52
When an adjustment pin 55 as an operating body is inserted and mounted in the adjustment hole 41 and the pin insertion hole 54 in a state where the one selected adjustment hole 41 of 35 is vertically aligned, the work side The frame 51 is fixed to the second connecting arm body 35, and the earth working means 45 is adjusted to a predetermined working position corresponding to the size of the tractor T, that is, for example, the width of the wheel, that is, the tractor T Is in a state where the deviation amount (offset amount) from the center line X in the left-right direction is adjusted to a predetermined amount.

On the other hand, an adjusting member attaching member 57 is fixed to the upper surface of the arm connecting portion 52, and the adjusting member attaching member 57 is, for example, two plate portions 56, which protrude upward from the upper surface of the arm connecting portion 52. It is formed at 56. On the other hand, a support shaft mounting member 58 having a U-shaped cross section is fixed to the lower surface of the arm connecting portion 52 so as to protrude downward.

A base end, which is one end in the longitudinal direction, of the adjusting body 60 for adjusting the working depth, which is formed in an elongated plate shape, is connected to the adjusting body attaching member 57 via a horizontal pin 61. It is rotatably mounted. The adjusting body 60 is disposed so as to be swingable along a substantially vertical plane around a base end so that the tip side moves up and down, and a plurality of, for example, three adjusting holes 62 penetrating right and left are provided at the tip end. , 62 are formed, and these three adjusting holes 62, 62, 62 are arranged at equal intervals in the longitudinal direction of the adjusting body 60.

The support member mounting member 58 has a support member 65 horizontally spanned between plate portions 58a and 58b which are spaced apart from each other in the horizontal direction. The support member 65 has an axial direction in the horizontal direction. Match. A base end of an elongated support arm 66 having a longitudinal direction in the front-rear direction is rotatably attached to the support shaft 65. The support arm 66 is arranged so as to be swingable about a base end so as to ascend and descend along a substantially vertical plane such that the distal end side is raised and lowered. On the upper surface near the distal end portion, a pair of pin holding portions 67 are provided. , 67 are formed in a protruding manner, and each pin holding portion 67 is formed with a pin insertion hole 68 penetrating right and left.

Then, the pin insertion hole 68 of the support arm 66 is provided.
With the selected one adjustment hole 62 of the adjustment body 60 left and right aligned, an adjustment pin 69 as an operating body is inserted into the adjustment hole 62 and the pin insertion hole 68 and attached. Then, the support arm 66 is fixed to the arm connecting portion 52,
The soil work means 45 is in a state where it is adjusted to a predetermined work position according to the state of the soil in the field or the like, that is, in a state where it is adjusted to a predetermined work depth position.

That is, the support arm whose rotation can be adjusted.
A single transmission case 72 is attached to the support arm 66 via a plurality of mounting frames 71 arranged near the front end and the rear end of the support arm 66.
The support arm 66 is supported in a suspended state, and is rotatable about the support shaft 65 together with the support arm 66. That is, as shown in FIG. 5, the single transmission case 72 can be rotated around a line passing through the axis of the support body 65 (the rotation center axis A in the right, left, right and horizontal directions). The rotation is adjustable about a rotation center axis A about the rear end side so as to move up and down. Further, the single transmission case 72 rotates around the vertical rotation center axes Y1, Y2 in accordance with the rotation adjustment of the first connection arm body 23 and the rotation adjustment of the second connection arm body 35. The movement can be adjusted.

Here, the single transmission case 72 is formed as a single unit and has a function of a support frame for supporting the earthworking means 45. As shown in FIG. It has a support part 74, and a rotary support part 75 having a substantially elongated cylindrical shape and a hollow shape is formed so as to protrude toward the front of the ridge coating machine 1 from the front side which is one side of the input shaft support part 74, A hollow ridge coating body support portion 76 is formed so as to project rearward of the ridge coating machine 1 from the rear side, which is the other side surface of the input shaft support portion 74.

The input shaft support portion 74 rotatably supports an intermediate input shaft 82 as a drive shaft via a plurality of bearing members 81 so as to be rotatable. The input shaft support 74 is projected outside the input shaft support 74 via a circular insertion opening 74a formed on the left side surface, which is one side surface of the input shaft support 74.

A tip end of the intermediate input shaft 82 protruding outside the input shaft support portion 74 has a shaft main body member 13c of a power transmission shaft body 13 having one end connected to the input shaft 12 via a connection member 13a. The other end is connected via a connecting member 13b. Connecting member 1
3a and the connecting member 13b are, for example, double wide-angle universal joints, respectively, and the shaft main body member 13c,
The power transmission shaft 13 is composed of the connecting members 13a and 13b. Also, as shown in FIG. 1, the axial direction of the intermediate input shaft 82 substantially coincides with the horizontal direction of the ridger 1 and is orthogonal to the axial direction of the input shaft 12 when viewed from a plane.

The base end of the intermediate input shaft 82 housed in the input shaft support 74 has a first bevel gear 83 and a first bevel gear 83.
The gears 84 are fixedly arranged in the axial direction. The first bevel gear 83 of the intermediate input shaft 82 has a second bevel gear 87 of an intermediate connecting shaft 86 rotatably supported by a plurality of bearing members 85.
The third gear 92 of the rotary output shaft 91 is meshed with the second gear 88 of the intermediate connecting shaft 86. The first bevel gear 83, the second bevel gear 87, the first gear 8
4. The second gear 88, the third gear 92, and the intermediate connecting shaft 86 are housed in the input shaft support 74.

The rotary output shaft 91 is supported by the rotary support portion 75 so that the axial direction thereof is aligned with the front-rear direction. The rotary output shaft 91 is provided inside the input shaft support portion 74. Are rotatably supported by the other bearing member 94 provided at the distal end of the rotary support portion 75, and the portion excluding the base end portion is accommodated in the rotary support portion 75. Further, as shown in FIG. 4, the axial direction of the rotary output shaft 91 coincides with the front-rear horizontal direction of the ridge coating machine 1.

Then, the tip end of the rotary output shaft 91 protruding through the insertion port 75a outside the rotary support portion 75 is
A nail attachment member 95 is directly connected and fixed, and a plurality of nails 96 are radially attached to the nail attachment member 95. The claw 96, the claw mounting member 95, and the like constitute a rotary 98 as a pretreatment body. The rotary 98 is rotated by a rotary support portion 75 of the single transmission case 72 via a rotary output shaft 91. Supported as possible. This rotary 98
Receives the driving force from the tractor T, rotates integrally with the rotary output shaft 91, plows the soil for furrowing and jumps up. In addition, above and on the side of the rotary 98,
As shown in FIG. 1, a cover body 99 for preventing scattering of soil is arranged.

On the other hand, the first gear 84 of the intermediate input shaft 82 supported by the input shaft support 74 is engaged with the fourth gear 102 of the ridged body output shaft 101. This ridged body output shaft 1
01 is supported in a state where the axial direction coincides with the horizontal direction in the left and right direction by the furrowed body support unit 76, and the furrowed body output shaft 101 has a plurality of It is rotatably supported by a bearing member 100.

The furrow-coated body output shaft 101 has a base-side half accommodated in the furnished-body support 76 and a distal half protruding outside the furnished-body support 76 through the insertion opening 76a. ing.
The axial direction of the ridged body output shaft 101 and the rotary output shaft 9
The axis direction of the rotary output shaft 91 is perpendicular to the axial direction of the tractor T in the plan view, and the axial direction of the ridge coat body output shaft 101 is in a direction intersecting the traveling direction of the tractor T. I do. In addition, the axial direction of the ridged body output shaft 101 and the axial direction of the support shaft 65 match in plan view. In addition,
As shown in FIG. 5, the rotation center axis A of the single transmission case 72 is located above and in the vicinity of the rotation center axis B in the left and right horizontal direction, which is a line passing through the axis of the ridge coating body output shaft 101. The ridged body output shaft 101 is positioned substantially parallel to the rotation center axis B.

A ridge body 105 is attached to a tip of the ridge body output shaft 101 protruding outside the ridge body support portion 76 via a frusto-conical annular member 104. The ridge coating body 105 is located at a position behind the rotary 98, and is, for example, a cylindrical top coating member for lining the upper surface of the old ridge.
106, a frusto-conical side coating member 107 for adjusting the inclined side surface of the old ridge. This ridged body 1
Above 05, a cover body 108 for preventing the scattering of soil is provided.

When the earth working means 45 constituted by the rotary 98 and the ridge body 105 is set at a predetermined working position, the driving force from the tractor T is applied to the input shaft 12 and the power transmission. When input to the intermediate input shaft 82 via the shaft 13 and the like, the rotary output shaft 91 is driven to rotate and the ridge coating body output shaft 101 is driven to rotate, and as a result, the claw 96 of the rotary 98 The soil for ridge coating is plowed and flipped up, and the soil is applied to the upper surface of the old ridge by the upper coating member 106 of the ridge coating body 105, and is applied to the side surface of the old ridge by the side coating member 107. A new ridge is formed. Row coating 10
The rotation speed of No. 5 is set to be higher than the wheel rotation speed of the tractor T.

On the other hand, the ridger 1 is shown in FIGS.
As shown in (1), there is provided a lifting prevention means 111 which prevents the rotary 98 of the soil working means 45 and the ridge application body 105 from rising from the ridge by the force received from the soil in the field at the time of work.

This lifting prevention means 111 is
And an elongated plate-shaped support 113 having a longitudinal direction in the vertical direction fixedly attached to the rotary support portion 75 of the single transmission case 72 via an attachment member 112.
An underground traveling body 115 capable of traveling in the soil of the field is formed integrally with the support body 113 at the lower end of 13.

The underground traveling body 115 is, for example,
A side coating member pressing portion 117 for pressing the side coating member 107 of 05 against the side surface of the old ridge, and a top coating member 10 of the ridge coating body 105
Top coating member pressing part 116 that presses 6 on the upper part of old ridge
It is composed of

The side-coating member pressing portion 117 is formed in, for example, an elongated plate shape having a longitudinal direction in the vertical direction, and is arranged in an inclined manner as shown in FIG. That is, the side-coating member pressing portion 117 has a distance from the left-right center line X of the tractor T from the one end to the other end in the width direction, that is, from the rear end to the front end in the traveling direction. It is inclined in the direction of gradually increasing, and the front end is inclined in the direction toward the ridge side. As shown in FIG. 4, a cutting blade portion 117a for vertically cutting the ground is formed at the front end in the running direction of the side surface coating member pressing portion 117.

Further, the upper surface coating member pressing portion 116 is formed in a substantially square plate shape, and is inclinedly fixed to the lower end portion of the side surface coating member pressing portion 117 as shown in FIG. That is, the upper surface coating member pressing portion 116 is inclined downward from the rear end side to the front end side in the traveling direction, and the front end side in the traveling direction is formed in a tapered shape.

When the underground traveling body 115 travels based on the traveling of the tractor T, earth pressure acts on one side surface of the side painting member pressing portion 117 facing forward in the traveling direction, and as a result, the side painting member 107 is The right side, which is one side in the running direction, is urged to the right, and the outer side of the side coating member 107 is pressed against the inclined side surface of the old ridge with a relatively strong pressing force. At the same time, earth pressure acts on the upper surface of the upper coating member holding portion 116, and as a result, the upper coating member 106 is urged downward, and the lower surface side of the upper coating member 106 is pressed against the upper surface of the old ridge with a relatively strong pressing force. It is held down. For this reason, a tight ridge is formed by the ridge coating body 105.

The input shaft 12, the power transmission shaft 13, the connecting members 13a and 13b, the intermediate input shaft 82, the first bevel gear 83, the second bevel gear 87, the intermediate connecting shaft 86, the second gear 88, and the third gear. Gear 92,
A transmission means 110 is constituted by the rotary output shaft 91, the first gear 84, the fourth gear 102, the ridge-coated body output shaft 101, and the like. The transmission means 110 transfers power from the tractor T side to the rotary 98 and the ridge-coated body. This is transmitted to the earth work means 45 consisting of 105.

Next, a case in which a ridge painting operation for repairing an old ridge is performed using the above-described embodiment will be described.

In performing the ridge coating work, which is an earthwork,
The worker lifts and holds the ridge coater 1 at a predetermined height position using the three-point link mechanism T1 of the tractor T, and appropriately operates the first operation pin 43 and the second operation pin 44. hand,
Earth work means 45 consisting of a rotary 98 and ridges 105
Is set to the forward working posture of FIG.

In the forward working posture shown in FIG. 1, the rotary 98 and the ridge coating body 105 are disposed on the right side, which is one side of the ridge coating machine 1, and project to the right with respect to the tractor T. Is located on the tractor T side, and the ridge coating body 105 is located behind the rotary 98.

Further, according to the wheel width dimension of the tractor T,
The offset amount of the earthworking means 45 is adjusted by inserting and removing the adjusting pin 55. That is, the rotary 98 and the furrow 105 are positioned closer to the furrow by a predetermined distance from the rear position of the right wheel, which is one side of the tractor T.

Further, the working depth of the soil working means 45 is adjusted by inserting and removing the adjusting pin 69 in accordance with the condition of the soil in the field. That is, the single transmission case 72 of the working side frame 51
Is adjusted about the rotation center axis A in the horizontal direction in the left and right direction, thereby setting the working depth of the rotary 98 according to the condition of the soil in the field or the like. For example, as shown in FIG. 4, each of the rotary 98 and the ridges 105 is set at the same height position, or the rotary 98 is set at a lower position or a higher position than the ridges 105 (not shown). Or

Thus, the rotary 98 and the ridge-coated body 10
5 is set to a predetermined forward working posture, and after lifting and holding by the three-point link mechanism T1 of the tractor T is released, the tractor T is caused to travel in the forward traveling direction while the wheels of the tractor T are along the old ridge, The ridge coater 1 runs in the field together with the tractor T, and the rotary 98
The soil for levee application is plowed and flipped up, and the flipped-up soil is applied to the old ridges by the ridge application body 105 to form a new ridge, thereby forming a new ridge. The operator in the driver's seat can move the tractor T straight in the forward traveling direction by moving the wheels of the tractor T along the old ridge.

When the ridge coating machine 1 travels, the underground traveling body 115 of the lifting prevention means 111 travels in the soil of the field, and the underground traveling body 115 is applied with an earth pressure in a predetermined direction. Act,
As a result, the weight of the ridge coater 1 increases by that much, and the side coating member 107 of the ridge coater 105 is pressed against the inclined side portion of the old ridge with a relatively strong pressing force. The coating member 106 is pressed against the upper surface of the old ridge with a relatively strong pressing force, and a new ridge which is firmly tightened is formed.

When the formation of the new ridge progresses and the tractor T reaches the end of the field, the operator in the driver's seat turns the handle of the tractor T to reverse the direction of the tractor T.

Next, while lifting and holding the ridge coater 1 at a predetermined height position using the three-point link mechanism T1 of the tractor T, the operator once pulls out the first operation pin 43, and removes the first operation pin 43. Is rotated by a predetermined amount about the rotation center axis Y1 together with the second connection arm body 35, the working side frame 51, and the like, and the second hole 29 of the first fixed body 27, the tractor side frame The pin insertion holes 22 of the second pin holding plate 21 are vertically aligned with each other, and the first operation pins 43 are inserted through these second holes 29 and the pin insertion holes 22 to be mounted again.

Further, the operator once pulls out the second operation pin 44 and moves the second connecting arm 35 around the rotation center axis Y2 while keeping the first connecting arm 23 fixed. By rotating by a predetermined amount together with the frame 51 and the like, the insertion hole 40 of the second fixed body 39 and the pin insertion hole 34 of the other pin holding plate 33 of the first connecting arm body 23 are aligned vertically. In this state, the second operation pin 44 is inserted into the insertion hole 40 and the pin insertion hole 34, and the second operation pin 44 is mounted again. The power transmission shaft 13 of the transmission means 110 is connected to the input shaft 12 and the intermediate input shaft 82 when the rotation of the first connection arm 23 and the rotation of the second connection arm 35 are adjusted. It can be left in place and does not need to be disconnected.

Then, the rotary 98 and the furrow 105
Is set in the retreating posture of FIG. 3 in which the ridge painting work can be performed based on the retreating traveling of the tractor T.

In the retreating posture shown in FIG. 3, the rotary 98 and the ridge coating body 105 are disposed on the left side, which is one side of the ridge coating machine 1, and project to the left with respect to the tractor T. Is located on the tractor T side, and the rotary 98 is located behind the ridge coating body 105. Note that, in the retracted work posture state of FIG.
Reference numeral 5 is set so that the protrusion dimension (the distance from the left-right center line X of the tractor T), which is the protrusion amount with respect to the tractor T, is larger than that in the forward working posture of FIG.

After releasing the lifting of the tractor T by the three-point link mechanism T1, the operator releases the tractor T.
The tractor T is caused to travel in the backward traveling direction while maintaining the space between the wheels and the new ridge.

Then, the levee-coating machine 1 travels in the field together with the tractor T, and the soil for the ridge-coating is plowed by the rotary 98 of the soil work means 45 and flipped up. The old ridges are applied to the ridges 105 to form new ridges. At this time, the new ridge is not crushed by the wheel of the tractor T, and the wheel does not fall into the recess formed in the field scene by the rotary 98, and the tractor does not tilt.

On the other hand, when transporting the ridge coating machine 1 or attaching / detaching the ridge coating machine 1 to / from the tractor T, the worker operates the earthworking means 45 including the rotary 98 and the ridge coating body 105. The non-working posture shown in FIG. 2 is set.

That is, as shown in FIG.
The state that the rotary 98 and the ridge coating body 105 which are 45 are arranged in the inclined direction intersecting with the traveling direction of the tractor T,
It is set at a position behind the tractor T.

The rear position of the tractor T is, for example,
A position where the center of gravity of the entire ridge coater 1 is located on the center line X in the left-right direction behind the tractor T so that the left and right weight balance of the tractor T while lifting and holding the ridge coater 1 can be improved, or For example, the center of the left-right dimension (width direction dimension) of the ridge coater 1 is located on the left-right center line X behind the tractor T so that the protrusion of the ridge coater 1 on the side of the tractor T can be reduced. It is a position to do. In the rear position of the tractor T, the center of gravity of the entire ridge coating machine 1 and the center of the horizontal dimension (width dimension) of the ridge coating machine 1 are both located behind the tractor T on the horizontal center line X. A position is more preferable.

As described above, according to the above-described embodiment, the rotary 98 and the ridge-painted body 105 are rotated by adjusting the rotation of the first connection arm 23 and the rotation of the second connection arm 35. Since the forward working posture and the backward working posture can be set, soil work can be performed over the entire field,
There is no unworked part of the old ridge, and work efficiency can be improved.

The working-side frame 51 is connected to the tractor-side frame 2 via a first connecting arm 23 and a second connecting arm 35, both of which are rotationally adjustable. Connecting portion between the first connecting arm body 23 and the working side frame 51 and the second connecting arm body 35
It is configured to be able to adjust the separation distance from the connection portion with the connection portion.

Therefore, the rotary 98 and the ridged body
The separation distance in the retreating work posture of the earthworking means 45 consisting of 105 can be set to be longer than the separation distance in the forward working posture of the soilworking means 45, and one side of the earthworking means 45 in the retreating work posture with respect to the tractor T. Can be set to a size larger than the size of the earth working means 45 in the forward working posture to the other side of the tractor T with respect to the tractor T, so that the tractor side frame 2 holding the rotary 98 and the ridge coating body 105 has a linear shape. As compared with a configuration in which the working side frame 51 is connected via a single connecting arm body, a problem occurs during retreating work, for example, a new ridge is crushed by a wheel, a wheel falls into a concave portion of a field scene. Can be prevented.

In addition, the rotary 98 and the ridge-coated body 105
Can be set at a forward position closer to the tractor T, so that the front-rear balance of the tractor T during forward work can be improved, and unworked portions generated during work in the forward work posture can be reduced.

Further, a power transmission shaft 13 and a first connecting arm body are provided between the tractor side frame 2 and the work side frame 51.
23 and the second connecting arm body 35, and the single transmission case 72 has the functions of both the conventional rotary transmission case and the ridge coating body transmission case. Configuration, the weight of the entire ridge coater is light, and it is ideal for small tractors.Furthermore, compared to the conventional ridge coater, the number of parts is small, manufacturing and maintenance are easy, and it is extremely inexpensive. Can be manufactured.

In the single transmission case 72, the intermediate input shaft
82 is rotatably supported in a state in which the axial direction of the intermediate input shaft 82 is substantially coincident with the horizontal direction in the left and right directions, so that the first connecting arm body 23 and the second
In combination with the configuration in which the working side frame 51 is connected via the connecting arm body 35, the rotary 98 and the ridge coating body 105 can be set at a position near the tractor T which is a forward position near the tractor T, The front-rear balance of the tractor T during operation can be reliably improved.

That is, the intermediate input shaft 82 supported by the input shaft supporting portion 74 of the single transmission case 72 has its axial direction
The horizontal axis of the power transmission shaft 13 is substantially equal to the horizontal direction of the power transmission shaft 13 as compared with a configuration in which the axial direction of the intermediate input shaft 82 matches the front-rear direction of the ridger 1. The rotary 98 and the ridge body 105 can be set at positions near the tractor T.

Further, the single transmission case 72 adjusts the turning depth about the turning center axis A in the left and right horizontal direction so that the working depth of the rotary 98 can be adjusted according to the condition of the soil in the field. It can be easily set based on the height position of 105, and can respond appropriately to the work situation.

Further, the power transmission shaft 13 of the transmission means 110
When the posture of the rotary 98 and the ridge coating body 105 is changed, the first connecting arm body 23 is turned while the both ends are connected to the input shaft 12 and the intermediate input shaft 82 via the connecting members 13a and 13b. In response to the movement and the rotation of the second connecting arm body 35, that is, the rotation of the single transmission case 72, the rotation about the vertical rotation center axis of the end on the input shaft 12 side is performed. To expand and contract as needed.
When setting the posture of 98 and the ridge body 105, the power transmission shaft 13
The working posture of the rotary 98 and the ridge body 105 can be easily set, as compared with a configuration or the like that requires an operation of once releasing the connection state of the ridges.

On the other hand, this is a small ridge coater 1 suitable for a small tractor, and although the weight of the entire ridge coater 1 is light, the lifting prevention means 111 prevents the rotary 98 and the ridge coating body 105 from rising. Therefore, the soil for furrowing can be properly plowed by the rotary 98 and can be flipped up, and the furrow 105 can form a tightly furnished ridge.

In the above-described embodiment, the single transmission case 72 has been described with respect to the configuration in which the intermediate input shaft 82 is supported in a state where the axial direction of the intermediate input shaft 82 is substantially aligned in the left-right horizontal direction. , The approximate match here is the intermediate input shaft
The case where the axial direction of 82 and the left-right horizontal direction of the ridge coating machine 1 completely match is included, and the case where the axial direction of the intermediate input shaft 82 is slightly deviated from the left-right horizontal direction is also included.

Further, although not shown, the axial direction of the intermediate input shaft 82 of the single transmission case 72 is set in front of and behind the ridge coating machine 1 so that the rotary 98 and the ridge coating body 105 can be set at a forward position near the tractor T side. Direction, ie, an acute angle in plan view with respect to the front-back direction (a predetermined angle greater than 0 degrees and less than 90 degrees, for example, approximately 4 degrees).
5 °), the direction may be substantially the same as the inclination direction inclined gradually from the downstream end to the upstream end in the power transmission direction toward the input shaft 12 on the center side in the left-right direction.

Also, in any of the above embodiments, the single transmission case 72 is such that the rotation center axis A of the single transmission case 72 is the rotation center axis B of the ridge coating output shaft 101 (the ridge coating 105).
This ridged body output shaft is located near and above the rotation center axis of the ridge.
Although a configuration in which the rotation center axis A of the single transmission case 72 is not illustrated is described, for example, the rotation center axis A of the single transmission case 72 is
The rotation center axis B may be positioned at the same height as the rotation center axis B, and may substantially coincide with the rotation center axis B.

If the rotation center axis A of the single transmission case 72 and the rotation center axis B of the ridge-coated body output shaft 101 are made substantially coincident with each other, the height position of the ridge-coated body 105 is kept constant. In addition, the working depth of only the rotary 98 can be appropriately set based on the height position of the ridge body 105.

In any of the above embodiments, the working frame 51 is reciprocally connected to the distal end of the second connecting arm 35 so that the position of the earth working means 45 in the left-right direction can be adjusted. Although described as a configuration, for example, a configuration in which the distal end portion of the second connection arm body 35 is connected and fixed to the arm connection portion of the working side frame 51 may be used.

Further, in any of the above embodiments, the lifting prevention means 111 is provided on the lower end of the support
5 has been described as an integrally formed configuration, for example, the underground traveling body 115 traveling in the soil and the support 113 traveling on the ground may be configured separately, and the support 113 is Any member that can support the traveling body 115 may be used.For example, the supporting body 113 is not limited to a configuration in which the traveling body is gradually inclined forward from the upper end to the lower end in the traveling direction, but is linearly arranged in the vertical direction. A configuration in which only the underground traveling body 115 is inclined such that the front end side faces the ridge side, that is, the elongated plate-shaped support body 113 is formed in a vertical plane along the front-rear direction of the ridge coating machine 1 The soil running body 115 in the form of an elongated plate is disposed on a vertical surface along an inclined direction that is inclined with respect to the front-rear direction of the ridge coating machine 1, and the soil running body 115 is located at the rear end in the running direction. Alternatively, a configuration may be employed in which the vehicle is positioned in an inclined manner in a direction approaching the ridge side from the front toward the front end.

The underground traveling body 115 has been described as having both the side coating member pressing portion 117 and the top surface coating member pressing portion 116. For example, the side surface coating member pressing portion 117 and the top surface coating member pressing portion 116 may be used. A configuration having only one of them may be used.

In any of the above embodiments, when setting the posture of the ridge coating machine 1, the ridge coating machine 1 removes and inserts the first operation pin 43, the second operation pin 44, and the adjustment pins 55 and 69. Although the configuration described above requires manual operation by the operator, for example, by using a driving unit such as a fluid pressure cylinder and a control unit for controlling the driving unit, the entire operation that does not require the manual operation of the operator is required. An automatic configuration can also be used. It should be noted that instead of removing and inserting the first operating pin 43, the second operating pin 44, and the adjusting pins 55 and 69, a screw type configuration using screws or the like may be adopted.

Further, in the above embodiment, the agricultural working machine is described as the ridge coating machine 1. However, for example, although not shown, an offset agricultural working machine such as a trench excavator that performs soil work on one side in the left-right direction may be used. It can be applied to any kind.

[0098]

According to the first aspect of the present invention, the earth work means is brought into the forward working posture and the backward working posture by the rotation adjustment of the first connecting arm body and the rotation adjustment of the second connecting arm body. Since the setting can be performed, soil work can be performed over the entire field, and work efficiency can be improved. Further, since the working side frame is connected to the tractor side frame via the first connection arm body and the second connection arm body that can both be rotationally adjusted, the tractor side frame has a linear shape. As compared with a configuration in which the working side frames are connected via a connecting arm body, the earthworking means can be set at a forward position closer to the tractor, and the front-rear balance of the tractor during the work can be improved.

According to the second aspect of the present invention, the separation distance when the earthworking means is retracted can be set to be longer than the separation distance when the earthworking means has moved forward.
Since the projecting dimension of the earth working means in the retreating posture to one side with respect to the tractor can be set to be larger than the projecting dimension of the earth working means in the forward working posture to the other side with respect to the tractor, occurrence of trouble during retreating work For example, it is possible to prevent a new ridge from being crushed by a wheel, to prevent the wheel from dropping into a recess in a field scene, and to set a position of an earthworking means at a forward position closer to a tractor at the time of forward work. The balance of the front and rear of the tractor when moving and when moving can be improved.

According to the third aspect of the present invention, the power transmission shaft body and the first power transmission shaft are provided between the tractor side frame and the work side frame.
Since the configuration is such that only two members of the connecting arm body and the second connecting arm body are connected, the configuration is simple,
The light weight of the whole agricultural work machine makes it ideal for small tractors.

According to the fourth aspect of the present invention, it is possible to efficiently and appropriately perform the ridge coating work for applying the leached soil to the old ridge and adjusting the ridge.

[Brief description of the drawings]

FIG. 1 is a plan view at the time of work showing an embodiment of a ridger of the present invention.

FIG. 2 is a plan view of the above ridge coater when it is not working.

FIG. 3 is a plan view of the above ridger during retreating operation.

FIG. 4 is a side view of the same ridge coater.

FIG. 5 is a rear view of the same ridge coater.

FIG. 6 is a sectional view of a transmission means of the same ridge coating machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ridging machine which is an agricultural work machine 2 Tractor side frame 13 Power transmission shaft 23 1st connection arm body 35 2nd connection arm body 45 Soil work means 51 Working side frame 98 Rotary 105 Ridging body T Tractor

 ────────────────────────────────────────────────── ─── Continued on the front page F-term (reference) 2B033 AA05 AB03 AB11 AB19 AC05 BA01 BB02 CA04 CA08 DA01 DA06 DA08 EC01 ED20 2B034 AA02 BA02 BA07 BA10 BB01 BC06 BD03 BE02 DA03 DB07 DB13 DB15 2B304 KA02 KA11 KA17 LA02 LA04 LC03 LB13 MA05

Claims (4)

[Claims] A tractor-side frame connected to the tractor; a first end rotatably connected to the tractor-side frame, the first end being rotatable about a vertical rotation center axis of the one end; And a second connection which is rotatably connected at one end to the other end of the first connection arm, and is rotatable about a vertical rotation center axis of the one end. An arm body; a working side frame connected to the other end of the second connecting arm body; and a turn attached to the working side frame and rotating about the rotation center axis of the first connecting arm body. The movement adjustment and the rotation adjustment of the second connecting arm body about the rotation center axis make it possible to perform the soil operation based on the forward traveling posture in which the tractor can perform the earthwork based on the forward traveling and the retracting traveling of the tractor. Workable Agricultural machine being characterized in that a soil working means which is set in the retracted working position. 2. A structure in which a separation distance between a connecting portion between a tractor-side frame and a first connecting arm body and a connecting portion between a working-side frame and a second connecting arm body is adjustable. The separation distance at the time of the backward working posture is
The earth working means is set to a distance longer than the separation distance at the time of the forward working posture, and the projecting dimension of the earth working means in the retreating working posture to one side with respect to the tractor is set to the length of the earth working means in the forward working posture. The agricultural working machine according to claim 1, wherein the dimension is set to be larger than a dimension of the tractor projecting to the other side. 3. A power transmission shaft for transmitting a driving force from a tractor to an earthworking means, wherein a first connecting arm and a second connecting arm are connected between the tractor-side frame and the working-side frame. The agricultural working machine according to claim 1 or 2, wherein the connecting arm body and the power transmission shaft body are connected only by two members. 4. A soil work means comprising: a rotary for plowing and leaching soil for ridge filling and a ridge coating body for laying the old ridge with soil cultivated and raised by the rotary. The agricultural work machine according to any one of claims 1 to 3, further comprising: