JP3205329B1 - Agricultural machine with reversing mechanism - Google Patents

Abstract

Abstract: [PROBLEMS] To make it possible to achieve efficient levee work using a tractor by efficiently saving labor. SOLUTION: A base end portion 7 of an arm 6 is pivotally connected to a rotation support portion 5 provided at a rear portion of a tractor 2a.
The arm 6 can rotate between a protruding state protruding rightward when viewed in the forward direction of the tractor and a protruding state protruding leftward, and can be fixed non-rotatably in both protruding states. . A ridge forming machine 9a is attached to the distal end side of the arm 6, and the ridge forming machine 9a performs a ridge forming operation by moving the tractor 2a forward or backward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reversing the arrangement of working machines,
The present invention relates to an agricultural machine provided with a reversing work mechanism that enables efficient and labor-saving various kinds of agricultural work such as burying in a continuous state.

[0002]

2. Description of the Related Art The inventor of the present invention disclosed in Japanese Patent Application Laid-Open No. 9-215402 a riding type ridge formation in which a ridge is provided at the rear of a tractor to form a ridge in the traveling direction of the tractor. Proposed machine.

[0003] However, such a riding type ridge forming machine using a tractor has a large length in the front-rear direction. Therefore, when the tractor reaches the edge of the rice field, the distance from the front end of the tractor to the ridge control device is increased. Minutes, ie 4-5
Since ridges cannot be arranged for the length of about m, ridges must be formed by hand in this part, and the labor was large.

[0004] The present invention has been developed in view of the above-described problems, and can be used to carry out various types of agricultural work, such as ridges, digging, digging, and burrowing, including ridges, by using a traveling machine such as a tractor provided with an agricultural work machine. It is an object of the present invention to provide an agricultural machine having a reversing operation mechanism that achieves efficient and labor-saving agricultural work despite its large length in the front-rear direction.

[0005]

In order to solve the above-mentioned problems, the present invention employs the following means. That is, a first aspect of the agricultural machine having the reversing operation mechanism according to the present invention is an agricultural machine having a reversing operation mechanism, which is attached to the traveling machine and performs a required agricultural operation with its forward or backward movement, A base end portion of an arm is rotatably pivoted on a rotation support portion provided at either the front or rear of the traveling machine, and the arm is moved rightward in a plan view in the forward direction of the traveling machine. The arm is rotatable between a first protruding state protruding leftward and a second protruding state protruding leftward when viewed in the forward direction of the traveling machine. In each of the two protruding states, the arm is turned. It can be fixed to impossible. A working machine is attached to the distal end side of the arm, and the working machine moves forward or backward when the arm is in the first protruding state or the second protruding state, so that the working machine advances. Agricultural work is required in the direction. Further, the working machine is of a rotary type that performs a required agricultural work by rotating a working portion linked to the driven shaft as the driven shaft of the working machine is rotated. In the traveling machine, a drive shaft is provided on the side where the rotation support portion exists so as to extend in a left-right direction substantially orthogonal to a forward direction of the traveling machine, and the first protruding state or the second The driven shaft of a working machine attached to an arm in a protruding state can be connected to the drive shaft.

A second aspect of the agricultural machine according to the present invention is as follows.
An agricultural machine provided with a reversing mechanism, which is attached to a traveling machine and performs required agricultural work as the vehicle travels forward or backward. A first portion that pivotally attaches the end side portion and projects the arm to the right when viewed in the forward direction of the traveling machine in plan view;
And a second protruding state protruding leftward when viewed in the forward direction of the traveling machine, and in each of the two protruding states, the arm can be non-rotatably fixed. Become. Also, a working machine is attached to the tip side of the arm,
When the arm is in the first protruding state or the second protruding state, the traveling machine moves forward or backward, so that the working machine performs required agricultural work in the traveling direction of the traveling machine. Further, the working machine is of a rotary type that performs a required agricultural work by rotating a working portion linked to the driven shaft as the driven shaft of the working machine is rotated. And the rotation support portion is disposed at substantially the center in the width direction of the traveling machine either before or after the traveling machine, and from the rotation support portion, a left direction substantially orthogonal to a forward direction of the traveling machine and Right and left drive shafts are provided so as to extend in the right direction, respectively, and the driven shaft of a working machine attached to the arm in the first projecting state can be connected to the right drive shaft. The driven shaft of the working machine attached to the arm in the second projecting state can be connected to the left drive shaft.

In the first and second agricultural machines, it is preferable that the driven shaft can be connected to the drive shaft by moving the driven shaft toward the drive shaft. Alternatively, it is preferable that the driven shaft can be connected to the drive shaft by moving the work implement to the drive shaft side. Alternatively, it is preferable that the driven shaft can be connected to the drive shaft by moving the drive shaft toward the work implement.

In the first and second agricultural machines, the arm may be fixed to the traveling machine as a result, and the movable arm may be slidable in the length direction of the fixed arm. The working machine is attached to the movable arm, and the movable arm slides in a direction protruding from the fixed arm,
The driven shaft of the working machine is separated from the drive shaft,
In this disconnected state, the arm can rotate between the first projecting state and the second projecting state, and the arm can be rotated in the first projecting state or the second projecting state.
In the protruding state, the movable arm slides toward the fixed arm, so that the driven shaft is connected to the drive shaft. It is preferable that the sliding operation of the movable arm is performed in cooperation with the turning operation of the lever.

In the first and second agricultural machines, the arm is configured to be extendable and contractable, and the arm is extended, whereby a driven shaft provided on the working machine is separated from the drive shaft. The arm is configured to be rotatable between the first protruding state and the second protruding state in the retracted state, and the arm is configured to be in the first protruding state or the second protruding state. It is preferable that the arm is reduced so that the driven shaft is connected to the drive shaft.

In each of the agricultural machines, the working machine is a ridge forming machine, the ridge forming machine continuously supplies soil to the ridge forming section in a raised state, and tightens the embankment of the ridge forming section. And a ridge forming device that forms a ridge by hardening. In this case, the ridge forming device includes a ridge-type ridge that includes a ridge upper surface forming member that forms the upper surface of the ridge and a ridge inner surface forming member that forms the inner surface of the ridge. It is preferable that the body and the inside surface of the ridge form a slip rotation with respect to the embankment to compact the ridge surface.

In the case where the working machine is a ridge forming machine, a mission device is provided at a tip end side of the arm, and the mission device projects rightward in the first projecting state and is rotated about its axis. A first working shaft and a second working shaft protruding forward when viewed in the forward direction of the traveling machine and being rotated around its axis, wherein the ridge forming device is provided on the first working shaft. It is preferable that the earthing device is connected to the second working shaft while being connected.

In each of the agricultural machines, the working machine is:
It can be configured as a ridger for ridged, a digger for digging, a mulcher for burrowing, and the like.

In each of the agricultural machines, it is preferable that the arm protrudes rearward when viewed in the forward direction of the traveling machine, and can be fixed so as not to rotate even in the protruding state.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, an agricultural machine provided with a reversing work mechanism according to the present invention (hereinafter referred to as an agricultural machine).
1 is attached to the rear part of the traveling machine 2 as, for example, a tractor 2a, and sequentially forms ridges 3 as the tractor 2a moves forward and backward. As shown in FIGS. A base end portion 7 of an arm 6 is pivotally connected to a rotation support portion 5 provided substantially at the center in the width direction so as to be rotatable, and a ridge is provided on the distal end side of the arm 6 as shown in FIGS. A work machine 9 as a forming machine 9a is additionally provided.

[0015] As shown in FIG.
For example, it is configured by attaching a support portion 12 to a support shaft 11 erected in a fixed state on a drive-side gear box 10 having a cubic shape so as to be able to rotate forward and reverse around its axis. The support portion 12 is formed by connecting thrust bearings 13, 13 attached above and below the support shaft 11 with a cylindrical support cylinder 15.

In this embodiment, a position fixing plate 16 is fixed on the upper surface of the gear box 10,
The position fixing plate 16 has fixed projecting pieces 17, 1 projecting leftward, rightward, and rearward as viewed in the forward direction F of the tractor 2 a.
The fixing projections 17, 19, and 20 have fixing holes 21 extending vertically.

The left and right side portions 2 of the gear box 10
As shown in FIGS. 3 to 8, a pipe 25 extending leftward and a pipe 26 extending rightward project from the left and right sides of the left and right sides in a fixed state. The pipes 25 and 26 are connected to the left and right support arms 3 of the tractor via left and right support pieces 27 and 29, as shown in FIGS.
0,31.

Also, as shown in FIG.
The drive shaft 37, the left drive shaft 39, and the right drive shaft 40 are supported by bearings 33, 35, and 36 provided on the front surface portion 32 and the left and right side portions 22, 23, respectively. The driving shaft 37 is, as shown in FIG.
1 is connected to the power shaft 42 of the tractor 2a. As shown in FIG. 8, bevel gears 38, 45 and 46 are fixedly mounted at the base ends of the driving shaft 37 and the left and right driving shafts 39 and 40, respectively, in the gear box 10. Bevel gears 45 and 46 of left and right drive shafts are meshed with the left and right of the gear 38, and the left and right drive shafts 3 are rotated by the rotation of the driving shaft 37 rotated by the power shaft 42 of the tractor 2a.
9 and 40 are configured to rotate. The left and right drive shafts 39, 40 are built in along the axis of the left and right pipes 25, 26, and the leading portions of both drive shafts 39, 40 have inner peripheral surfaces as shown in FIG. Is formed in a hexagonal pipe shape, and a tip 47 thereof is slightly receded inward from a tip 49 of the pipe. As shown in FIG. 3, the upper end 50 of the support shaft 11 is connected to the tractor 2a.
Of the support rod 51 extending rearward.

As shown in FIGS. 1 and 3 to 7, the arm 6 is configured to be extendable and contractible in the present embodiment, and to be in a state in which a base end side is fixed to the rotation support portion 5. It comprises a fixed arm 53 (consequently fixed to the tractor 2a) and a movable arm 55 that can slide in the length direction of the fixed arm 53.

As shown in FIGS. 3, 7, and 9, the fixed arm 53 has two opposite outer plates 5 having the same shape and facing each other.
Piece 5 for connecting the upper and lower parts of both end portions of 6, 56
7, 57, 59, 59 are formed in a box shape connected with each other, and the proximal end portions 60, 60 of both outer plates 56, 56 are
The rotation support portion 5 is welded to the support portion 12 while sandwiching the support tube 15 from both sides. The upper and lower connecting pieces 57, 57 located on the base end side have the fixed protruding pieces 1.
Fixing holes 61 are provided to be aligned with the fixing holes 21 provided in 7, 19, and 20, respectively. The central portions of the outer plates 56 in the length direction are formed as mountain-shaped plates 62 projecting upward, and the tops of the mountain-shaped plates 62 are mutually connected to a pivot 63 having a circular cross section. Are connected by

The inner surfaces 65, 6 of the outer plates 56, 56
As shown in FIGS. 9 to 10, upper and lower ridges 69 each having a lower surface serving as a guide surface 67, and an upper surface having a guide surface 70.
The lower protruding ridge 71 is provided to face up and down. And between the upper ridge 69 and the lower ridge 71, both outer plates 56,5
6, as shown in FIGS. 3 to 6, slide holes 72 are provided to extend in the length direction of the fixed arm 53.

On the other hand, as shown in FIGS. 3 to 6 and FIG. 9, the movable arm 55 has a piece 75 (FIG. 9) for connecting the base ends of two opposing inner plates 73 having the same shape. At the same time, the intermediate portions of the inner plates 73, 73 in the longitudinal direction are connected to each other by a connecting shaft 76 having a circular cross section, and as shown in FIG. 77 is in contact with the inner surfaces 65, 65 of the outer plates 56, 56, and upper and lower surfaces 79, 80 are upper and lower guide surfaces 67, 7, respectively.
It is configured to be able to slide while abutting on zero. 9 and 3, both end portions of the connecting shaft 76 slightly protrude from the outer surfaces of the inner plates 73, 73,
Bearings 82, 82 are attached to each protruding portion, and the sliding of the movable arm 55
2, 82 are upper and lower surfaces 83, 8 of the slide holes 72, 72, respectively.
5 is performed.

The sliding operation of the movable arm 55 having such a configuration is performed in conjunction with the turning operation of the vertically long lever 86 shown in FIGS. 3, 9, and 18 to 21. A vertically elongated slot 87 provided at the lower end
The connecting shaft 76 of the movable arm 55 is inserted through (FIG. 9) and, as shown in FIG. 3, the pivot 63 is inserted through a shaft hole 89 provided at an upper portion thereof.
Therefore, the lever 86 is pivotally operated with the pivot 63 as a fulcrum by holding the upper end portion of the lever 86 with a hand, and FIG.
As shown at 8 to 21, the movable arm 55 can be slid in the direction in which it projects from the fixed arm 53 or in the opposite direction.

Also, on the tip side of the inner plates 73, 73,
As shown in FIG. 3, a driven gear box 90 constituting the working machine 9 is fixedly provided.
Is fixed to the upper surface side of the gear box 90.

The arm 6 having such a configuration projects in a rightward direction when viewed in the forward direction F of the tractor 2a in a plan view, and in a first projection state A shown in FIG. 1 and in a leftward direction in FIG. And a second protruding state B shown in FIG. In the first protruding state A, the fixing holes 61 provided in the upper and lower connecting pieces 57 are aligned with the fixing holes 21 provided in the right fixing protruding piece 19. 12. As shown in FIG. 1, the arm 6 is rotated in the first protruding state A by inserting the flanged fixing pin 91 into the three fixing holes 61, 61, 21 so as to drop it from above. Becomes impossible. When the arm 6 is in the second protruding state B, the fixing holes 61 provided in the upper and lower connecting pieces 57 are aligned with the fixing holes 21 provided in the left fixing protrusion 17. As shown in FIGS. 12 and 11, by inserting the fixing pin 91 into the three fixing holes 61, 61 and 21, the arm 6 cannot rotate in the second protruding state B. Further, with the arm 6 protruding rearward as shown in FIG. 13, the upper and lower fixing holes 61 and 61 and the fixing hole 21 of the fixing protruding piece 20 projecting rearward as shown in FIGS. By inserting the fixing pin 91, the arm 6 cannot rotate in the rearwardly protruding state C.

As shown in FIG. 14, the driven gear box 90 is provided with bearings 96, 97, 99 on its front face 92 and left and right side faces 93, 95. A driven shaft 100 protruding toward the right drive shaft 40 is supported, and a first working shaft 101 protruding forward is supported by the bearing 96 on the front surface portion. On the right bearing 99, a second working shaft 102 projecting rightward is supported. The driven shaft 1
00, bevel gear 103 in gear box 90
Is fixed, and a bevel gear 105 that can mesh with the bevel gear 103 is fixed to the first working shaft 101,
A bevel gear 106 that can mesh with the bevel gear 105 is fixed to the second working shaft 102. This allows
The rotation of the driven shaft 100 allows the first working shaft 101 and the second working shaft 102 to rotate simultaneously.

The driven shaft 100 is connected to the left side surface 9.
3, is inserted through the cylindrical portion 107 protruding in a fixed state, with the axis line being common, and as shown in FIG.
The left and right pipes 25, 26 can be inserted into the front portions 108. The leading end of the driven shaft portion protruding from the tip of the cylindrical portion 107 is formed as a hexagonal shaft portion 110, and the cylindrical portion 107 is connected to the pipe 25,
26, the hexagonal shaft portion 11 is inserted.
0 can be inserted closely into the hexagonal hole 109.

The ridge forming machine 9a is shown in FIGS.
As shown in FIG. 1, a banking device 111 for supplying soil to a portion to be ridged in a raised state, and a ridge forming device 113 for compacting the banking 112 and lining up the soil are provided. The embankment device 111 is provided on the side (FIG. 14). In this embodiment, as shown in FIGS. 2 and 15 to 16, the embankment device 111 includes a scraping and scraping rotor 113 fixed to the first working shaft 101.
And a guide cover 115 provided to cover the upper side of the scraping and scraping rotor 113. The guide cover 115 is bolted to a circular fixing plate 116 fixed to the front side of the gear box 90. Have been. When the embankment device 111 having such a configuration is in the first protruding state A (FIG. 1), the scraping and scraping rotor 113 is formed.
With the rotation of the first working shaft 101, as shown by an arrow in FIG.
9 to cut into the inner part 12 of the old ridge 117
At the same time, the paddy surface portion 121 of the ridge 0 and the old ridge 117 is scraped off, and the shaved soil is scraped up. The soil thus scraped up is guided by the guide cover 115 as shown by an arrow in FIG. 16 and is buried 112 in a ridge forming portion 122 formed by shaving.

On the side of the second working shaft 102 (FIG. 14), the ridge forming device 113 is provided with a casing 1 shown in FIG.
23 is provided via a speed reducer 125 built in. As shown in FIG. 4, the casing 123 is formed as a flat case having an oval shape when viewed from the front and rear sides, and the small-diameter base end portion 126 is concentric with the second working shaft 102. The mounting plate 1 attached to the protruding cylindrical pivot 127 (FIGS. 1 and 14) using a bearing 124.
It is rotatably pivotally mounted via 28. As shown in FIG. 4, a ridge-rotation shaft 12 parallel to the second working shaft 102
9 is supported by the bearing 130. In the casing 123, as shown in FIGS. 4 and 22, a small-diameter sprocket 132 is fixedly mounted on the second working shaft 102, and a large-diameter sprocket 133 is mounted on the ridge rotating shaft 129.
Is fixed to both sprockets 132 and 133.
The speed reducer 125 is formed by winding the gear 35. Then, with the rotation of the second working shaft 102, the ridge setting work shaft 129 is rotated at a reduced speed via both sprockets 132 and 133 and the chain 135. As shown in FIG. 2 and FIG. 17, a rotary type rowing tool 136 for compacting the embankment 112 supplied on the old row into a kneaded state is fixed to the row setting rotary shaft 129.

The ridge setting tool 136 includes a ridge upper surface forming member 139 that forms the upper surface 137 of the ridge, an inner ridge surface forming member 141 that forms the inner surface 140 of the ridge, and an outer ridge that forms the outer surface 142 of the ridge. And a side surface forming body 143, and the ridge upper surface forming body 13
9 and the ridge inner surface forming member 141 and the ridge outer surface forming member 143 are slip-rotated with respect to the embankment 112 to compact the ridge surface. In the present embodiment, the inner surface of the ridge inner surface forming member 141 and the inner surface of the ridge outer surface forming member 143 are arranged like a plurality of ridge line corners 145 in a radial manner, like an outer surface of an open umbrella. It is formed as a bent surface. Further, a portion on the outer peripheral edge side of the ridge inner side surface forming body 141 is configured as a saw blade-shaped cutting portion in which a protruding portion 146 having a tapered front side is arranged in the circumferential direction.

As shown in FIGS. 2 and 4, a support piece 147 is projected from an upper portion of the distal end portion of the casing 123, and a lower nut member 149 is vertically rotated on the support piece 147. The lower end portion of the operation screw shaft 150 is screwed to the nut member 149. The upper end portion of the operation screw shaft 150 is screwed to an upper nut member 152 which is rotatably supported in a vertical direction by a support piece 151 protruding from the rear side of the guide cover 115. However, by rotating the operation screw shaft 150 with the handle 148, the casing 123 can be tilted with the cylindrical pivot 127 as a fulcrum. It can be held at an appropriate height depending on the size.

In the first protruding state A shown in FIGS. 3 and 18 or the second protruding state B shown in FIGS. 5 and 19, the lever 86 is moved in the direction shown by the arrows in FIGS. 20 to 21 by rotating the movable arm 55 toward the fixed arm 53.
As shown in FIG. 5, the cylindrical portion 107 protruding from the driven gear box 90 can be inserted into the front portions 108 of the left and right pipes 25 and 26, and the hexagonal shaft portion 110 can be The left and right drive shafts 39, 40 can be inserted into the hexagonal holes 109. Thereby, the driven shaft 10
0 is connected to the drive shaft 39 or the drive shaft 40, and the rotation of the drive shaft 39 or the drive shaft 40 causes the driven shaft 100 to rotate. The lever 86 that has been rotated is fixed in position in that state. Particularly, in the first protruding state A, FIG. 22 shows a connected state of the driven shaft 100 and the drive shaft 40, and FIG. 23 shows a disconnected state thereof.

Next, the rotational direction of each shaft in a state where the driven shaft 100 and the drive shaft 40 are connected in this manner is shown in FIG.
3 will be described. FIG. 23 shows the first protruding state A. Now, it is assumed that the driving shaft 37 is rotated counterclockwise F1 by the power shaft 42 in the forward direction F of the tractor 2a. . Thus, the right drive shaft 40 is rotated clockwise F2 when viewed in the direction of the tip. The left drive shaft 39 is also rotated F3 clockwise as viewed in the direction of its tip. Then, the first working shaft 101 is rotated F4 clockwise as viewed in the direction of the tip thereof, so that the scraping and scraping rotor 113 moves the old ridge 117 from the outside to the inside (on the rice field side).
Rotate F5 so as to scrape in an arc toward (see FIG. 2,
(FIG. 16). Further, the second working shaft 102 rotates counterclockwise F6 when viewed in the direction of its tip, whereby the ridge 136 has its upper peripheral surface rotated F7 in the forward direction of the tractor 2a (FIG. 2). ) And make a ridge.

Accordingly, as the tractor 2a moves forward, the scraping and scraping rotor 113 moves the first working shaft 10
With the rotation of 1, as shown in FIG. 16, the rotation F5 is performed so as to cut into the rice field 119 in a direction away from the old ridge 117,
The inner portion 120 of the old ridge 117 and the rice field portion 121 at the ridge of the old ridge 117 are simultaneously scraped, and the shaved soil is scraped up. The soil thus scraped is guided by the guide cover 115 as shown by an arrow in FIG.
The embankment 11 is filled in the ridge forming part 122 formed by shaving.
2 Further, the rotation of the ridge setting rotation shaft 129 accompanying the rotation of the second working shaft 102 causes the ridge setting tool 136 to slip-rotate with respect to the embankment 112 to adjust the ridge.

As shown in FIG. 17, the saw-shaped protruding portion 146 becomes a cutting blade and cuts into the ridge-side rice field 153 as shown in FIG. 17, so that the outer surface 155 of the protruding portion forms the ridge. The lower end portion 156 of the inner surface 140 is compacted by slip rotation. Therefore, a ridge excellent in stability can be formed. Since this cutting is performed by using the saw-tooth-shaped protrusion 146 as a cutting blade, the cutting on the rice field is performed easily and reliably.

As shown in FIG. 24, one end 159 of the pad 157 is rotated by the rotation of each shaft with the advance of the tractor 2a.
From the other end 160. In the state where the front end 161 of the tractor 2a reaches the other end 160 of the rice field as shown in FIG. 24, the tractor cannot advance any further, so the distance L portion 162 from the front end 161 to the ridge forming machine 9a is The ridges cannot be adjusted as they are. Therefore, as shown by an arrow in FIG.
Is rotated leftward, and the movable arm 55 is slid in a direction to protrude from the fixed arm 53. By this sliding, the driven shaft 100 is separated from the right drive shaft 40 as shown in FIG. Thereafter, the arm 6 is rotated leftward (in the direction indicated by the arrow in FIG. 11) in the separated state, and the arm 6 is brought into the second protruding state B.
Thereafter, as shown by an arrow in FIG. 19, the lever 86 is rotated leftward, the movable arm 55 is slid toward the fixed arm 53, and as shown in FIG. And the driven shaft 100 is inserted into the hexagonal hole 109 of the left drive shaft 39. Thereby, the driven shaft 1
00 is connected to the drive shaft 39.

Thereafter, as shown in FIG. 25, the tractor 2a
And the ridge forming machine 9a is aligned with the end of the old ridge portion 162 that is not tied. In this state, the tractor 2a is moved backward as shown by an arrow in FIGS. 25 to 26. The rotation of the power shaft 42 causes the drive shaft initially located on the left (the shaft located on the left in FIG. 21). The reference numeral 39 rotates clockwise as viewed in the direction of the tip as indicated by the arrow in FIG. Accordingly, the first working shaft 101 rotates clockwise as indicated by an arrow when viewed in the direction of its tip, and the second working shaft 102 rotates counterclockwise as indicated by an arrow in the direction of its tip.

Therefore, when the tractor 2a moves backward, the scraping and scraping rotor 113 moves the first working shaft 10
With the rotation of 1, as shown in FIG. 16, it rotates so as to cut into the rice field 119 in a direction away from the old ridge 117, and simultaneously cuts the inner portion 120 of the old ridge 117 and the ridge-side field portion 121 of the old ridge 117. At the same time, the scraped soil is scraped up. The soil thus scraped up is guided by the guide cover 115, and is embanked 112 in the ridge forming part 122 formed by shaving. Also, as shown in FIG.
By the rotation of 29, the ridges 136 are moved by the embankment 11
Slip rotation to 2 to make ridges. As a result of this, it was not possible to control the ridge by moving the tractor forward.
As for the old ridge portion 162 of No. 4, almost the entire ridge can be adjusted by reversing the arm 6 and reversing the tractor 2a.

When the tractor is moved after the required ridge forming operation is completed, the arm 6 is set in a state C protruding rearward as shown in FIG. 13, and as shown in FIGS. The fixing pin 91 is inserted into the fixing holes 61 on the upper and lower sides of the tractor 2 and the fixing holes 21 of the fixing protruding piece 20 projecting rearward, so that the ridge forming machine 9a hardly protrudes from the lateral width of the tractor 2a. The tractor can be moved safely.

[Other Embodiments] (1) The traveling machine in the present invention may be a caterpillar traveling machine or the like in addition to the tractor.

(2) The working machine 9 attached to the distal end side of the arm 6 is a working machine for ridge setting, in addition to the ridge forming machine,
It can be configured as a work machine for performing various agricultural works such as a work machine for digging a required ditch such as a drain ditch or a work machine for putting soil into a crop.

(3) Also, depending on the type of agricultural work performed by the working machine, the farming machine may be in an oblique state that is not orthogonal to the forward direction of the traveling machine.
The first projecting state and the second projecting state may be set. In the present invention, such a change from the first protruding state to the second protruding state or vice versa belongs to the concept of reversal.

(4) As the means for connecting the driven shaft 100 to the drive shafts 39 and 40 and disconnecting the connection, various connecting means other than the means for expanding and contracting the arm 6 as described above can be adopted. For example, means for making the driven shaft extendable and extendable so that the driven shaft can be connected to the drive shaft, and conversely, making the drive shaft extendable and connectable for connecting the drive shaft to the driven shaft Etc. can also be adopted. The connection between the driven shaft and the drive shaft can be performed by using various known shaft couplings in addition to the means for inserting the hexagonal shaft into the hexagonal hole as described above.

(5) First protruding state A and second protruding state B
The structure in which the arm 6 can be rotated between the position and the position can be performed manually or by using a hydraulic device or an electric device.

(6) FIG. 27 shows another embodiment of the furrowing device 136, in which the furrow outer surface forming body 143 is omitted.
The case where it is composed of the ridge inner side surface forming body 141 and the ridge upper surface forming body 139 is shown. Further, the ridge upper surface forming body 139 and the ridge inner side surface forming member 141 may be configured to rotate independently, and the rotation of the ridge upper surface forming member 139 and the ridge inner side surface forming member 141 may be made different.

(7) The embankment device 111 for continuously supplying the soil to the ridge forming section in a raised state is a combination of a rotary cutting blade for shaving the old ridge as needed and an embankment rotor for scraping at least the soil on the rice field portion. It may be composed of
Alternatively, if the shaving of the old ridge has already been completed, the ridge may be constituted only by the embankment rotor that continuously supplies the soil to the ridge forming portion in a raised state.

(8) The ridge-forming tool 13 constituting the ridge forming device
6 is the ridge inner surface forming body 141 as shown in FIG.
Is a rotational axis L2 eccentric to the axis L1 of the cone.
Sometimes rotated around. In the case of such a configuration, the ridge inner side surface forming body 141 is eccentrically rotated with the slip phenomenon with respect to the embankment, so that the ridge surface can be compacted more favorably. In this case, the ridge upper surface forming body 139 and the ridge outer surface forming body 143 may also be configured to perform eccentric movement in the vertical direction.

(9) In the present invention, when the outer peripheral edge portion of the ridge inner side surface forming body is formed as a cutting portion in which a protruding portion having a tapered end is juxtaposed in a circumferential direction, the protruding portion is formed by the saw. The protrusion is not limited to the blade-shaped protrusion, and may be a protrusion having a triangular shape, a trapezoidal shape, or the like.

(10) The arm 6 is fixed to the fixed arm 53
In addition to a slide system including the movable arm 55 and the movable arm 55, the movable arm 55 may be configured to be expandable and contractable using various known means.

(11) The rotation support portion 5 for pivotally attaching the arm is provided at the rear of the traveling machine as described above, and may be provided at the front of the traveling machine. .

[0051]

The present invention has the following excellent effects. (1) An agricultural machine according to the present invention includes an arm rotatable between a first protruding state and a second protruding state, and a ridge forming machine, a ridge machine, a groove, A work machine as a digging machine, a mulcher, etc. is additionally provided. Therefore, according to the present invention, for example, as shown in FIG. 24, when performing agricultural work such as ridge formation from one end of the field to the other end, the front end of the traveling machine reaches the other end of the field, and If the part where the required agricultural work cannot be performed remains (when the traveling machine is a tractor, it will remain about 4 to 5 m), the arm is reversed, and the traveling machine is turned backward and forward to reverse. By doing so, it is possible to continue the agricultural work on the remaining portion. As a result, ridges and the like can be formed over substantially the entire required length, and the efficiency and labor-saving of agricultural work such as ridge formation can be achieved.

(2) When the arm is configured to be extendable and contractable, the arm includes a fixed arm and a movable arm slidable in the length direction of the fixed arm. When the driven shaft of the working machine is configured to be separated from the drive shaft by sliding in a direction protruding from the drive shaft, the connection between the driven shaft and the drive shaft and the disconnection thereof are performed only by the sliding operation of the movable arm. And can be performed easily and reliably.

(3) When the arm protrudes backward as viewed in the forward direction of the traveling machine and can be fixed so as not to rotate even in the protruding state, the arm can be used at the start of a required agricultural work or after the work is completed. When the traveling machine is moved, there is an advantage that the traveling machine as a ridge forming machine or the like hardly protrudes from the lateral width of the traveling machine and the traveling machine can be safely moved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an agricultural machine according to the present invention.

FIG. 2 is a perspective view showing the working state.

FIG. 3 is a perspective view illustrating an arm reversing mechanism of the agricultural machine according to the present invention.

FIG. 4 is a perspective view showing a speed reducer of a working machine provided on an arm tip side.

FIG. 5 is a perspective view showing an inverted state of an arm.

FIG. 6 is a perspective view showing a state in which a driven shaft is connected to a drive shaft in the inverted state.

FIG. 7 is a perspective view illustrating a configuration of a drive unit of the agricultural machine according to the present invention.

FIG. 8 is a sectional view thereof.

FIG. 9 is a partial perspective view showing the configuration of a fixed arm and a movable arm that constitute the arm.

FIG. 10 is a sectional view showing a state in which both inner plates of the movable arm are guided by both outer plates of the fixed arm.

FIG. 11 is a plan view showing the inverted state of the arm.

FIG. 12 is a cross-sectional view showing a state in which the arm cannot rotate in the first, second, and third projecting states.

FIG. 13 is a plan view showing a state where the arm is projected rearward.

FIG. 14 is a sectional view showing a driven gear mechanism.

FIG. 15 is a perspective view showing a configuration of the working machine in a reversed state.

FIG. 16 is a sectional view showing an embankment operation state by the embankment device.

FIG. 17 is a cross-sectional view showing a ridge forming operation state of the rowing implement.

FIG. 18 is a side view showing a first protruding state of the arm in a state where a driven shaft is separated from a drive shaft.

FIG. 19 is a side view showing a second protruding state of the arm in a state where the driven shaft is separated from the drive shaft.

FIG. 20 is a side view showing a first protruding state of the arm with a driven shaft connected to a drive shaft.

FIG. 21 is a side view showing a second protruding state of the arm in a state where a driven shaft is connected to a drive shaft.

FIG. 22 is a perspective view showing an arrangement state of each shaft in a state where a driven shaft is separated from a drive shaft.

FIG. 23 is a perspective view showing an arrangement state of each shaft in a state where a driven shaft is connected to a drive shaft.

FIG. 24 is a plan view showing a ridge formation state in which the front end of the tractor has reached the other end of the rice field.

FIG. 25 is a plan view showing an operation process in which the tractor is turned in the front and rear directions and the ridge is adjusted by moving backward.

FIG. 26 is a perspective view showing an arrangement state of each shaft and a rotation direction of each shaft in that case.

FIG. 27 is a perspective view showing another mode of the furrowing device.

FIG. 28 is a side view showing another mode of the furrowing implement together with its operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Agricultural machine 2 Traveling machine 3 Row 5 Rotation support part 6 Arm 7 Base part of arm 9 Work implement 39 Drive shaft 40 Drive shaft 53 Fixed arm 55 Movable arm 86 Lever 100 Follower shaft 101 First work shaft 102 Second Work axis 111 Embankment device 113 Ridge forming device 136 Ridging tool 139 Ridge upper surface forming member 141 Ridge inner surface forming member

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-23708 (JP, A) JP-A-7-255208 (JP, A) JP-A-63-186202 (JP, U) Patent 2972534 (JP, A) B2) Patent 2731686 (JP, B2) Patent 2727963 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01B 59/043 A01B 35/00 A01B 71/02

Claims (12)

(57) [Claims] 1. An agricultural machine provided with a reversing operation mechanism, which is attached to a traveling machine and performs required agricultural work as the traveling machine advances or retreats, wherein a rotation support portion is provided at one of front and rear sides of the traveling machine. To
The base portion of the arm is pivotally connected to the arm, and the arm is
In a plan view, it is rotatable between a first protruding state protruding rightward when viewed in the forward direction of the traveling machine and a second protruding state protruding leftward when viewed in the forward direction of the traveling machine. In each of the two protruding states, the arm can be fixed so as not to rotate, and a working machine is attached to a tip side of the arm, and the arm is in the first protruding state or the second protruding state. In the above, when the traveling machine moves forward or backward, the working machine performs a required agricultural operation in the traveling direction of the traveling machine, and the driven machine has a driven shaft that is rotated. Accordingly, the working part linked to the driven shaft is rotated to perform a required agricultural work by rotation, and the traveling machine has a forward direction of the traveling machine on the side where the rotation support portion exists. Extend in the left-right direction substantially perpendicular to A drive shaft is provided, and the driven shaft of a working machine attached to the arm in the first protruding state or the second protruding state can be connected to the drive shaft. Agricultural machine with a reversing work mechanism. 2. An agricultural machine provided with a reversing operation mechanism, which is attached to a traveling machine and performs a required agricultural operation as the traveling machine moves forward or backward, wherein a rotating support portion is provided at one of front and rear sides of the traveling machine. To
The base portion of the arm is pivotally connected to the arm, and the arm is
In a plan view, it is rotatable between a first protruding state protruding rightward when viewed in the forward direction of the traveling machine and a second protruding state protruding leftward when viewed in the forward direction of the traveling machine. In each of the two protruding states, the arm can be fixed so as not to rotate, and a working machine is attached to a tip side of the arm, and the arm is in the first protruding state or the second protruding state. In the above, when the traveling machine moves forward or backward, the working machine performs a required agricultural operation in the traveling direction of the traveling machine, and the driven machine has a driven shaft that is rotated. Accordingly, the working part linked to the driven shaft is rotated to perform a required agricultural work by rotation, and the rotation support portion is located in front of or behind the traveling machine in the width direction of the traveling machine. It is arranged approximately in the center and Left and right drive shafts are provided so as to extend from the support portion in the left direction and the right direction, respectively, which are substantially orthogonal to the forward direction of the traveling machine, and the work attached to the arm in the first protruding state is provided. The driven shaft of the machine can be connected to the right drive shaft, while the driven shaft of the working machine attached to the arm in the second projecting state can be connected to the left drive shaft. An agricultural machine equipped with a reversing work mechanism characterized by the following. 3. The reversing operation mechanism according to claim 1, wherein the driven shaft is connected to the drive shaft by moving the driven shaft toward the drive shaft. Agricultural machines. 4. The reversing work mechanism according to claim 1, wherein the driven machine is connected to the drive shaft by moving the work machine toward the drive shaft. Agricultural machines. 5. The reversing work mechanism according to claim 1, wherein the driven shaft is connectable to the drive shaft by moving the drive shaft toward the work machine. Agricultural machines. 6. The work machine according to claim 6, wherein the arm includes a fixed arm that is eventually fixed to the traveling machine, and a movable arm that is slidable in the length direction of the fixed arm. When the movable arm slides in a direction protruding from the fixed arm, the driven shaft of the working machine is separated from the drive shaft, and in this separated state, the arm is The movable arm is configured to be rotatable between a first protruding state and the second protruding state, and the movable arm is fixed when the arm is in the first protruding state or the second protruding state. The agricultural machine according to claim 1 or 2, wherein the driven shaft is connected to the drive shaft by sliding toward an arm. 7. The agricultural machine according to claim 6, wherein the sliding operation of the movable arm is performed in cooperation with a rotating operation of a lever. 8. The arm is configured to be extendable and contractable, and when the arm is extended, a driven shaft provided on the work machine is separated from the drive shaft, and the arm is separated from the drive shaft in the separated state. 1 is configured to be rotatable between a protruding state and the second protruding state, and the arm is contracted when the arm is in the first protruding state or the second protruding state. 3. The agricultural machine according to claim 1, wherein the driven shaft is connected to the drive shaft. 9. The work machine is a ridge forming machine, and the ridge forming machine is configured to continuously supply the soil to the ridge forming portion in a raised state, and to compact the embankment of the ridge forming portion. An agricultural machine comprising a reversing work mechanism according to any one of claims 1 to 8, further comprising a ridge forming device for forming a ridge. 10. The ridge forming apparatus includes a ridge-type rotator having a ridge upper surface forming member forming an upper surface of a ridge and a ridge inner surface forming member forming an inner surface of the ridge. The agricultural machine provided with a reversing mechanism according to claim 9, wherein the upper surface forming body and the ridge inner surface forming body slip and rotate with respect to the embankment to compact the ridge surface. 11. A mission device is provided on the distal end side of the arm, the mission device protruding rightward in the first protruding state, and being rotated around its axis, A second working shaft projecting forward and rotating around its axis when viewed in the forward direction of the traveling machine, wherein the ridge forming device is connected to the first working shaft while the second working shaft is connected to the second working shaft. The agricultural machine according to claim 9, wherein the earthing device is connected to a working shaft. 12. The arm according to claim 1, wherein the arm protrudes rearward when viewed in a forward direction of the traveling machine, and is fixed so as not to rotate even in the protruding state. An agricultural machine comprising the reversing mechanism described.