JP2009077690A - Ridge-forming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ridge-forming machine which has a ridge-forming tool for forming ridges with soil tilled with a rotary tiller located behind the tiller, has a gauge body which contacts a field for supporting machine frame load, is attached to the rear portion of a travel member, is moved on a field, forms a ridge on the field, can repair the collapsed upper side of the formed ridge, when forming a ridge adjacent to the formed ridge, while partially overlapping on the ridge formed, and can efficiently ensure the press force of an upper side-forming tool for the upper side of the ridge. <P>SOLUTION: This ridge-forming machine includes an upper-side forming tool 66 for repairing the collapsed upper side Ra of the formed ridge R2, and disposes the upper-side forming tool 66 on a support member 67 which is erected vertically on the gauge body 37, when the ridge R1 is to be formed adjacent to the formed ridge R2, while making a part of it partially overlap the formed ridge R2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wrinkle forming machine that is mounted behind a traveling body such as a tractor and forms a wrinkle in the field while moving the field.

Conventionally, there has been provided a kite forming tool for forming a kite with the soil cultivated by the rotary tiller behind the rotary tiller, and a kite mounted on the rear of the tractor to form a kite on the field while moving the field. There is a molding machine (see Patent Documents 1 and 2).
Japanese Patent Laid-Open No. 10-84707 Japanese Utility Model Publication No. 1-4967

When forming a basket on a field with a conventional basket molding machine, as shown in FIG. 10 (a), when there is no room for molding a single row of baskets at the end of the field, the topmost basket of the field When forming R1 (the last row of ridges in the partitioned field), the last row of ridges R1 is formed by partially overlapping the pre-formed ridge R2 adjacent to the last row of ridges R1. .
Even when the end of the field is curved, as shown in FIG. 10B, when forming the last row of ridges R1 in the field, the last row of ridges R1 are Forming is performed by partially overlapping the forming rod R2.

In these cases, a part of the preformed rod R2 adjacent to the last row of rods R1 in the field is broken by a tractor wheel or a rotary tiller, and the preformed rod R2 adjacent to the last row of rods R1. On the top surface Ra of the tractor, the portion raised by the soil pushed outward in the left-right direction by the transmission case of the rotary tiller, etc. (the portion indicated by the hatched portion W in FIGS. 10A and 10B is not flat) There is a problem that the planting area of the upper surface Ra of the cocoon R2 adjacent to the cocoon R1 in the last row of the field is reduced.
Therefore, in view of the above-mentioned problems, the present invention provides a method for forming an upper surface of the deformed side of the preformed side that is collapsed when molding the side adjacent to the formed side while partially overlapping the preformed side. It is an object of the present invention to provide a wrinkle forming machine that can be repaired.

The technical means taken by the present invention in order to solve the technical problem is provided with a ridge forming tool for forming a ridge with soil cultivated by the rotary cultivator at the rear of the rotary cultivator. In the cocoon molding machine, which is equipped with a gauge body that touches the field on the side of the implement and supports the load on the machine body, and that is attached to the rear part of the traveling body and forms the cocoon in the field while moving the field,
An upper surface forming tool for repairing the upper surface of the deformed side of the pre-formed reed is provided when forming a reed adjacent to the formed reed while partially overlapping the pre-formed reed. And provided on a support standing on the gauge body.

  Moreover, it is good for the said support body to be comprised by the side surface shaping | molding tool which repairs the side surface of the said side of the said preform | molding | crushed side.

According to the present invention, when the ridge adjacent to the preformed ridge is formed while partially overlapping the preformed ridge, the upper surface of the preformed ridge that has been crushed can be repaired.
In addition, when providing an upper surface forming tool for repairing the upper surface of the pre-formed reed, the top surface forming tool is provided on a bracket extended from a distant place such as a reed forming tool or a rotary tiller. The upper surface forming tool escapes upward due to the reaction force from the soil, and it is difficult to exert a desired pressing force, but by providing the upper surface forming tool on the support body standing on the gauge body, The forming tool can be firmly supported, and a desired pressing force can be sufficiently secured.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIGS. 1 and 2, reference numeral 1 denotes a ridge forming machine that is attached to the rear part of a traveling body such as a tractor and forms the ridge R while moving in a field.
In the following description, the inner side in the left-right direction refers to the direction from the end in the left-right direction of the scissors molding machine 1 toward the center in the left-right direction, and the outer side in the left-right direction refers to the center in the left-right direction of the scissors molding machine 1. The direction from the side toward the end in the left-right direction.
The cocoon forming machine 1 includes a front rotary cultivating device 2 and a rear cocoon forming device 3.

The rotary tiller 2 includes a rotary machine frame 4 mounted on the tractor via a three-point link mechanism and the like, a rotary tiller unit 5 provided at a lower part of the rotary machine frame 4, and the rotary tiller unit 5 The upper cover 6 that covers the upper side of the rotary tiller 5 and the left and right side covers 7 that cover the left and right side surfaces of the rear part of the rotary tiller 5 are provided.
In the present embodiment, as shown in FIG. 6, the rotary machine frame 4 has a support arm 9 protruding left and right from a gear case 8 at the center in the left-right direction, and an upper end of the transmission case 10 at the end of the left support arm 9. The upper side of the side frame 11 is connected to the end portion of the right support arm 9 and the rear support portal 9 is formed.

A top mast 12 formed in a bifurcated shape is fixed to the upper part of the gear case 8, and the rear end side of the top link of the three-point link mechanism is connected to the upper part of the front part of the top mast 12 (or When a hitch frame is provided on the rear end side of the three-point link mechanism, a top link pin 13 that engages with a hook portion at the top of the hitch frame is provided.
Further, a connecting bracket 14 is fixed to each of the left and right support arms 9, and the rear end sides of the left and right lower links of the three-point link mechanism are connected to the front portion of the connecting bracket 14 (or the three-point link mechanism). When the hitch frame is provided on the rear end side, lower link pins 15 are provided (to which the left and right connecting tools at the lower part of the hitch frame are connected).

  Generally, the tractor body is formed by connecting an engine, a clutch housing, and a transmission case, and on the rear part of the tractor body, a hydraulic device for raising and lowering a work machine including a single-acting hydraulic cylinder is provided. The hydraulic device is provided with left and right lift arms that can swing up and down, and the left and right lift arms are linked to the left and right lower links of the three-point link mechanism via lift rods, and are connected to the hydraulic device with pressure oil. When the lift arm swings upward and the lower link swings upward, the rotary tiller 2 (the straw molding machine 1) is lifted, and the hydraulic oil is drained from the hydraulic device. The rotary tiller 2 (the cocoon forming machine 1) is configured to descend by its own weight.

As shown in FIGS. 2 and 6, the rotary tiller 5 includes a claw shaft 16 that is supported between a lower portion of the transmission case 10 and the side frame 11 so as to be rotatable about a horizontal axis, and the claw shaft. 16 and a plurality of tilling claws 17 attached to 16.
The claw shaft 16 receives rotational power from the PTO shaft of the tractor via the transmission shaft → PIC shaft 20 → bevel gear transmission mechanism in the gear case 8 → transmission shaft in the left support arm 9 → power transmission mechanism in the transmission case 10. The claw shaft 16 that is transmitted and rotated in the direction of arrow A in FIG.

Moreover, the rotary tilling part 5 is made into the nail | claw arrangement | sequence which brings the plowed soil to the center side in the left-right direction.
The upper cover 6 is provided above the rotary tiller 5 so as to extend over the transmission case 10 and the side frame 11, and is fixed to the rotary machine frame 4.
Each of the left and right side covers 7 is composed of an upper cover 7A and a lower cover 7B disposed on the side of the rotary tiller 5.
As shown in FIGS. 1 to 5 and 7, the scissor forming device 3 includes a main scissors forming tool 18 and an auxiliary scissors forming tool 19.

The main hull forming tool 18 is disposed behind the rotary tiller 5 and forms the hail R on the field by the cultivated soil plowed by the rotary tiller 5.
The auxiliary scissors forming tool 19 is disposed on the side of the main scissors forming tool 18, and when forming the scissors R1 adjacent to the preformed scissors R2 while partially overlapping the preformed scissors R2, The top surface Ra and the side surface Rb on the collapsed side of the preformed ridge R2 are repaired so that seedlings can be planted on the R2 by machine or by hand.
Therefore, when forming the collar R1 adjacent to the preformed collar R2 without partially overlapping the preformed collar R2, the auxiliary collar molding tool 19 is removed and the collar R is molded only by the main collar molding tool 18. The auxiliary scissor forming tool 19 is attached when forming the scissors R1 adjacent to the preformed scissors R2 while partially overlapping the preformed scissors R2.

In the present embodiment, the main hull forming tool 18 includes a pair of left and right guide plates 21 that move and guide the cultivated soil to the center in the left-right direction on the front side, and a pair of left and right side plates 22 that shape the left and right side surfaces Rb of the hail R. , And an upper surface plate 23 for forming the upper surface Ra of the ridge R. The left and right side plates 22 are provided in an inclined shape that moves upward as they go inward in the left-right direction. A trapezoidal cross section R is formed by pressing the cultivated soil with the face plate 23.
In addition, the main punch forming tool 18 (and the auxiliary punch forming tool 19) may form a hook having another cross-sectional shape.

The left and right side plates 22 are fixed to a guide plate 21 on the same side in the left-right direction.
A support shaft 24 extending between the left and right guide plates 21 is provided on the upper end side of the left and right guide plates 21, and a front end portion of the upper surface plate 23 is pivotally supported by the support shaft 24 so as to be rotatable about a horizontal axis. In addition, the rear side of the top plate 23 is swingable up and down.
On the other hand, a horizontal frame member 25 composed of pipes extending in the left-right direction of the main bag forming tool 18 is disposed behind the main bag forming tool 18 and above the side plate 22 and the upper surface plate 23. The left and right guide plates 21 are coupled to 25 via a coupling frame 26.

Each of the left and right connecting frames 26 is mainly composed of a vertical frame member 26A extending downward from the horizontal frame member 25, and a longitudinal frame member 26B extending forward from the vertical frame member 26A and fixed to the back surface of the guide plate 21. Yes.
The horizontal frame member 25 is provided with a pair of left and right rear support brackets 27 that extend rearward and downward. Each rear support bracket 27 is provided with a lowering device 28 that elastically compresses the rear side of the upper surface plate 23 downward. The lowering device 28 applies an appropriate pressing force to the upper surface Ra of the reed R to tighten the reed R.

Further, the horizontal frame member 25 is provided with a pair of left and right front support brackets 29 extending forward, and the front portion of each front support bracket 29 is provided with a boss portion 30. Are pivotally connected to boss portions 32 on the rear end side of the left and right links 31 extending rearward from the respective support arms 9 so as to be rotatable around a vertical axis.
The boss portion 33 on the front end side of each of the left and right links 31 is pivotally connected to a pivot plate 34 fixed to the support arm 9 so as to be rotatable about a vertical axis.
Therefore, the main punch forming tool 18 can be moved to the left and right by swinging the left and right links 31 left and right around the pivot portion at the front.

In addition, the bottom side of the cylinder body of the hydraulic cylinder 36 is pivotally connected to one link 31, and the tip end side of the piston rod of the hydraulic cylinder 36 is pivotally connected to the other link 31. From one link 31 to the other link 31, it is spanned diagonally with respect to the left-right direction.
By extending and contracting the hydraulic cylinder 36, the main punch forming tool 18 can be offset from the center position where the center in the left-right direction substantially coincides with the center in the left-right direction of the rotary machine frame 4 to the left or right or the other. ing.

The left and right guide plates 21 are positioned on the inner side of the rear end side of the side cover 7 on the same side in the left-right direction, and the main punch forming tool 18 is positioned between the left and right side covers 7. It can be moved.
On the lower end side of each of the left and right guide plates 21, a gauge body 37 extending rearward from the lower end is provided.
The gauge body 37 is pivotally connected via a pivot 39 having a left and right axial center to a pivotal support 38 provided at the front end at the lower end of the guide plate 21, and the rear side can swing up and down. The height adjustment device 40 is operated to swing up and down.

When performing the cocoon forming operation, generally, the hydraulic device for raising and lowering the work machine provided in the tractor is in a state in which pressure oil is drained from the hydraulic device, and the cocoon forming machine 1 is under its own weight. When the gauge body 37 comes into contact with the ground, the load on the body of the straw molding machine 1 is supported by the gauge body 37, and the tilling depth and the height of the main straw molding tool 18 are determined. By swinging up and down 37, the tilling depth and the height of the main rod forming tool 18 can be changed.
As shown in FIG. 4, the gauge body 37 is formed of a thick plate material in a substantially rectangular shape in plan view that is long in the front-rear direction, and the inner edge 37 a in the left-right direction is adjacent to the lower edge of the side plate 22 and adjacent thereto. The left and right outer edges 37 b are located in the vicinity of the left and right outer ends of the guide plate 21.

Accordingly, when the ridge R is formed, the gauge body 37 forms a ridge groove B (a groove between the ridge R and the ridge R adjacent to the ridge R).
Further, since the gauge body 37 is attached to the guide plate 21, it moves to the left and right together with the main punch forming tool 18.
The distance between the left and right sides of the side plate 22 of the main kite forming tool 18 is narrower than the left and right widths of the rotary tiller 5 in order to form the ribs R protruding upward. However, if the main punch forming tool 18 is fixed to the rotary machine frame 4, the left and right widths of the punch groove B are widened, and the paddy forming area in the field is narrowed.

On the other hand, in the present embodiment, the main punch forming tool 18 can be moved left and right together with the gauge body 37. Therefore, when forming the punch R1 adjacent to the pre-formed punch R2, the main punch forming tool 18 is removed. By offsetting toward the forming ridge R2, the gauge body 37 can be overlapped with the ridge groove B formed at the time of forming the pre-formed ridge R2, whereby the ridge groove B can be narrowed, and the ridge formation in the field The possible area can be increased.
Further, when the gauge body 37 is formed by wheels that roll on the field, the heel of the wheel is formed in the ridge groove B. By forming the gauge body 37 with a plate material, the bottom surface of the ridge groove B is flat. A shaped groove B can be formed.

A side plate 41 is provided on the outer end side in the left-right direction of the guide plate 21 in the vertical direction. The side plate 41 is detachably attached to a mounting plate 42 fixed to the guide plate 21 with bolts.
The side plate 41 is located on the outer side in the left-right direction of the front portion of the gauge body 37, and prevents dirt from entering the pivotal support portion of the gauge body 37.
In addition, by removing the side plate 41, the pivot 39 that pivotally supports the gauge body 37 can be attached and detached from the outer side in the left-right direction.

Further, on the rear side of the gauge body 37, a soil removal plate 43 for removing soil that has entered the gauge body 37 outward in the left-right direction is provided.
The base 43a of the soil removal plate 43 is attached to a mounting plate 44 fixed to the upper rear side of the gauge body 37 via a mounting shaft 45 so as to be rotatable about an axis in the vertical direction. It is fixed by mounting bolts 46 that pass through the base portion 43 a of the plate 43 and are screwed onto the mounting plate 44.
Further, the bolt insertion hole 47 provided in the base portion 43a of the soil removal plate 43 through which the mounting bolt 46 is inserted is formed in an arc shape centering on the attachment shaft 45, and the mounting angle of the soil removal plate 43 is Adjustable.

As shown in FIGS. 1, 2, 8, and 9, the height adjusting device 40 is disposed in the left-right direction on the upper side of the main punch forming tool 18 and has a length that extends over the left and right gauge bodies 37. The lift member 48, a pair of left and right support arms 49 that support the lift member 48 so as to be movable up and down with respect to the rotary machine frame 4, a lift operation device 59 that lifts and lowers the lift member 48, and right and left of the lift member 48. A pair of left and right connecting members 51 that are arranged on both sides and connect the elevating member 48 and the left and right gauge bodies 37 are provided.
The elevating member 48 is formed in the shape of a square cylinder having a horizontal axis, and the left and right support arms 49 are connected to the left and right support arms 9 on the rear end side of the connecting bracket 14 via the pivot 52 and the horizontal axis. The rear end side of the left and right support arms 49 is fixed to the elevating member 48 so as to be pivotable about the center.

Therefore, the elevating member 48 moves up and down (up and down) with respect to the rotary machine frame 4 by swinging the left and right support arms 49 up and down around the front pivot 52.
The lifting / lowering operation device 59 includes a telescopic rod 53 that is extendable in the length direction, and a handle 54 that adjusts the length of the telescopic rod 53. The telescopic rod 53 has one end in the length direction at the rear of the top mast 12. It is attached to the upper side so as to be rotatable around a horizontal axis, and the other end in the length direction is attached to a bracket 55 provided on the elevating member 48 so as to be rotatable around a horizontal axis. Yes.

Then, the elevating member 48 is moved up and down by adjusting the length of the elongating and retracting rod 53 by using the handle 54.
The left and right connecting members 51 are arranged above the gauge body 37 in the vertical direction, and a pair of front and rear brackets 56 are fixed to the upper and lower ends, and the cylindrical member 57 is disposed between the upper and lower front and rear brackets 56 in the front-rear direction. It is provided so as to be rotatable around the center.
In addition, a square cylindrical mounting member 58 is fitted and fixed to the elevating member 48, and the cylindrical member 60 is rotated about a horizontal axis between a pair of left and right brackets 59 fixed to the lower surface side of the mounting member 58. A cylindrical member 57 at the top of the connecting member 51 is fixed to the cylindrical member 60, so that the upper side of the connecting member 51 can rotate about the front / rear axis with respect to the lifting / lowering member 48, and left and right It is attached so as to be rotatable around its axis.

In addition, a pair of left and right brackets 61 are fixed to the upper surface of the rear side of the gauge body 37, and a cylindrical member 62 is provided between the brackets 61 so as to be rotatable about a horizontal axis. A cylindrical member 57 at the lower part of the member 51 is fixed, whereby the lower side of the connecting member 51 is attached to the gauge body 37 so as to be rotatable about the front and rear axes and to be rotatable about the left and right axes.
With the above configuration, when the elevating member 48 is moved up and down by the elevating operation device 59, the connecting member 51 moves up and down, the rear part of the gauge body 37 swings up and down, and the tilling depth and the height of the main rod forming tool 18 are increased. Adjustable.

Further, in the above structure, when the gauge body 37 moves to the left and right together with the main punch forming tool 18, the connecting member 51 swings to the left and right so that the gauge body 37 is allowed to move left and right. It has become.
Note that the gauge body 37 can be moved to the left and right with respect to the main punch forming tool 18 by play such as a pivotal support portion of the gauge body 37 and a connecting portion of the connecting member 51, and partly on the groove B forming portion. When there is a portion that is inclined with respect to the left and right, the gauge body 37 may be configured to move and adjust by itself along the ground.

In this case, an interval between the gauge body 37 and a member adjacent to the gauge body 37 is set to an interval sufficient to allow the left-right movement following the inclination of the gauge body 37.
As shown in FIGS. 1 to 5 and 7, the auxiliary scissor forming tool 19 is disposed on the outer side in the left-right direction of the gauge body 37 and forms (repairs) the top surface Ra of the deformed preformed scissors R <b> 2. A molding tool 66, a side molding tool 67 that molds (repairs) the side surface Rb of the deformed preformed collar R 2, and a mounted portion 69 that is detachably attached to a mounting portion 68 provided on the gauge body 37. ing.
The upper surface forming tool 66 includes a leveling plate 66A made of a rubber plate, a stay 66B made of a metal strip for attaching the upper surface forming tool 66 to the side surface forming tool 67, and an upper front portion of the leveling plate 66A. And a metal plate 66C superimposed on the side.

The stay 66B is formed in an L shape from a contact plate portion 71 disposed on the lower surface side of the leveling plate 66A and a mounting portion 72 bent so as to extend downward from the plate portion 71. The mounting portion 72 of the stay 66B is superposed on the outer surface of the front wall 67A of the side surface forming tool 67 and fixed to the side surface forming tool 67.
The front portion of the leveling plate 66A is sandwiched between the plate 66C and the contact plate portion 71 of the stay 66B and screwed into the bolt 75 passing through the contact plate portion 71, the leveling plate 66A and the plate 66C. The nut 66 is attached to the stay 66B.

The upper surface forming tool 66 (equalizing plate 66A and plate 66C) as a whole has an inclined shape (forwardly inclined shape) that moves upward as it goes forward, and moves backward as it goes inward in the left-right direction. It is attached to the front wall 67A of the side forming tool 67 so as to be inclined, and the soil of the pre-formed ridge R2 pushed outward in the left-right direction by the wheels of the tractor, the transmission case 10 of the rotary tiller 2, etc. It is configured such that it can be guided (returned) inward in the left-right direction (to the front side of the side surface forming tool 67) (in FIG. 5A, the arrow D direction indicates the front-rear direction).
The mounting portion 72 of the stay 66B is configured such that a bolt 73 passing through the mounting portion 72 and the front wall 67A of the side surface forming tool 67 and a nut 74 screwed to the bolt 73 are connected to the front wall 67A of the side surface forming tool 67. It is attached and fixed to.

In the present embodiment, the mounting portion 72 of the stay 66B is mounted and fixed by the single bolt 73, so that the mounting angle of the upper surface forming tool 66 (the leveling plate 66A and the plate 66C) with respect to the vertical direction can be adjusted. .
Further, a bolt insertion hole 77 formed in the attachment portion 72 for inserting the bolt 73 is formed into a long hole extending in the longitudinal direction of the attachment portion 72. By loosening the fastening of the bolt 73 and the nut 74, leveling can be performed. The vertical position of the base plate 66A can be adjusted (the height of the upper surface forming tool 66 can be adjusted).

Therefore, when the rear part of the gauge body 37 is adjusted in the vertical direction, the height of the upper surface forming tool 66 of the auxiliary scissor forming tool 19 is adjusted by adjusting the vertical position of the upper surface forming tool 66 of the auxiliary scissor forming tool 19. It can be made to correspond to the height of the upper surface plate 23 of the main punch forming tool 18 (or the pressing force against the upper surface Ra of the repaired flange R can be adjusted).
In the present embodiment, the rear side of the plate 66C (the rear side of the mounting portion of the leveling plate 66A) is bent so as to form a steep slope in the vertical direction as compared with the front side.
Further, the rear side of the leveling plate 66A extends rearward from the plate 66C, and the rear edge of the plate 66C is moved outward in the left-right direction with respect to the rear edge of the leveling plate 66A. It is inclined so that the distance between the trailing edge and the trailing edge of the leveling plate 66A becomes narrower (the construction is such that the amount of extension of the leveling plate 66A from the plate 66C decreases as going outward in the left-right direction). Have been).

Therefore, the portion of the leveling plate 66A that extends rearward from the plate 66C has a stronger elastic force as it goes outward in the left-right direction (elastic deformation becomes less likely as it goes outward in the left-right direction). In other words, the soil of the pre-formed ridge R2 pushed outward in the left-right direction can be satisfactorily sent inward in the left-right direction, and the soil can be distributed substantially evenly in the left-right direction.
The side surface forming tool 67 is made of a metal plate material, and the rear wall 67B is inclined in such a manner that it extends along the front-rear direction with respect to the front-rear direction and moves upward as it goes outward in the left-right direction with respect to the left-right direction. Has been.

Further, the rear wall 67B of the side surface forming tool 67 extends in the inclined direction from the position near the outer edge in the left-right direction of the gauge body 37, and the rear wall 67B of the side surface forming tool 67 collapses the preformed rod R2. The heel side surface Rb on the side thus formed is repaired so as to become the heel side surface Rb similar to the heel side surface Rb formed by the side surface plate 22 of the main bag forming tool 18.
Further, the front wall 67A of the side surface forming tool 67 is formed in an inclined shape that moves forward as it goes inward in the left-right direction, and is formed on the front side of the side surface forming tool 67 (the rear wall 67B of the side surface forming tool 67). A space in which soil can be accumulated is formed in the space), and in this space, the soil of the pre-formed ridge R2 pushed outwards left and right by the wheels of the tractor, the transmission case 10 of the rotary tiller 2, etc. Guided by the upper surface forming tool 66, the guided soil forms a heel side surface Rb by the rear wall 67 </ b> B of the side surface forming tool 67.

As a result, the finishing of the side surface Rb of the deformed preformed surface R2 is successful.
Further, the rear side of the side plate 41 provided on the outer end side in the left-right direction of the guide plate 21 is bent so as to be inclined so as to move outward in the left-right direction as going rearward. The left and right inner sides of the front wall 67A of the side molding tool 67 are located on the inner side, and the left and right inward soil on the front side of the side molding tool 67 is the left and right direction of the front wall 67A of the side molding tool 67. Good guidance to the outside.
The mounting portion 68 provided in the gauge body 37 is disposed on the outer side in the left-right direction on the front side of the upper surface of the gauge body 37, and the mounting portion 68 is provided on the outer end side in the left-right direction of the guide plate 21. The side plate 41 is positioned on the inner side in the left-right direction.

This prevents soil from entering the placement portion of the attachment portion 68 on the gauge body 37 when performing a normal ridge R forming operation without attaching the auxiliary ridge forming tool 19.
Further, the attachment portion 68 is formed in an open U-shape downward from the upper wall 68a and the left and right side walls 68b, and the lower end side of the side wall 68b is fixed to the upper surface of the gauge body 37.
Further, the side wall 68b is inclined with respect to the front-rear direction so that the side wall 68b is inclined to move outward in the left-right direction as it goes rearward.
An abutting member 78 having an L-shaped cross section is erected on the rear end side of the upper surface of the upper wall 68 of the mounting portion 68.

The attached portion 69 is formed of a thick plate material and is disposed on the lower end side of the side surface forming tool 67 on the inner side surface in the left-right direction.
The left and right outer edges on the rear side of the attached portion 69 are formed along the lower edge side of the rear wall 67B of the side forming tool 67 and are in contact with the rear wall 67B of the side forming tool 67. The rear side of the attachment portion 69 is fixed by welding to the lower end of the rear wall 67B of the side surface forming tool 67.
A reinforcing member 79 made of a plate material is fixed to the lower portion of the front end of the rear wall 67B of the side surface forming tool 67 by welding, and the reinforcing member 79 is also connected to the attached portion 69 by welding.

The front side of the attached portion 69 is an insertion portion 80 that extends in an inclined direction that moves inward in the left-right direction as it goes forward.
An abutting member 81 having an L-shaped cross section that abuts against the abutting member 78 provided on the attaching portion 68 is erected in the middle of the attached portion 69.
Then, the side forming tool 67 is inserted by inserting the insertion portion 80 of the attachment portion 69 into the attachment portion 68 on the gauge body 37 from the rear side until the contact member 81 contacts the contact member 78 on the attachment portion side. Is attached to the gauge body 37.

The attached portion 69 is placed on the gauge body 37 with the side surface forming tool 67 attached to the gauge body 37.
Further, when the preformed ridge R2 is repaired (formed) by the auxiliary ridge forming tool 19, the upper surface forming tool 66 and the side surface forming tool 67 are pressed by the load from the soil (by the reaction force from the soil). A frictional resistance acts between the insertion portion 80 and the inner surface of the attachment portion 68 due to pressure, and the insertion portion 80 of the attachment portion 69 moves inward in the left-right direction as it goes forward relative to the attachment portion 68. Since there is a saddle side surface Rb in the removal direction of the insertion portion 80 when it is inserted in the inclined direction and the ridge R is repaired, the insertion portion 80 does not come out of the attachment portion 68 during the operation. The retaining means for preventing the insertion portion 80 from coming off the attachment portion 68 is not necessary.

Therefore, the attachment / detachment of the auxiliary scissors forming tool 19 is performed simply by inserting / removing the insertion portion 80 with respect to the attaching portion 68, so that the auxiliary scissors forming tool 19 can be easily attached / detached.
However, a retaining means such as a bolt or nut for fastening the contact members 78 and 81 may be provided.
In the auxiliary scissors forming tool 19 having the above-described configuration, the side face forming tool 67 is a support body provided upright on the gauge body 37 in order to provide the upper surface forming tool 66.
When the upper surface forming tool 66 for repairing the upper surface Ra on the collapsed side of the preformed rod R2 is provided, for example, the upper surface forming tool is attached to a bracket extended from a distant place such as the main rod forming tool 18 and the rotary tiller 2. With the provision of 66, it is difficult for the upper surface forming tool 67 to escape upward due to the reaction force from the soil and exert a desired pressing force, but the upper surface forming tool 66 is erected on the gauge body 37. By providing the support body (side surface forming tool 67), the upper surface forming tool 66 can be firmly supported, and a desired pressing force can be sufficiently secured.

In the present embodiment, the mounting portion 68 is provided on each of the left and right gauge bodies 37, and the auxiliary scissors forming tool 19 is attached to the left side auxiliary scissors forming tool 19 attached to the left gauge body 37 and the right gauge body 37. A right-side auxiliary scissors forming tool 19 to be attached is prepared.
In this embodiment, the auxiliary scissor forming tool 19 is detachably provided on the gauge body 37. However, the auxiliary scissors forming tool 19 can be repaired on the upper surface Ra and the side surface Rb of the scissors R, and the work You may make it support by a support apparatus so that a position change can be carried out to the non-working position evacuated from the position.

It is the perspective view which looked at the scissor forming machine in work from diagonally left rear. It is the side surface schematic diagram of the scissors forming machine which carried out the cross section and fracture | ruptured partially. It is a perspective view of an auxiliary hook forming tool. (A) is a top view of the attachment part of the side surface shaping tool of an auxiliary hook shaping tool, (b) is a YY line arrow figure of (a), (c) is a XX line arrow cross section of (a). FIG. (A) is a plan view of the mounting portion of the upper surface molding tool of the auxiliary punch molding tool, (b) is a side sectional view of (a) the upper surface molding tool, and (c) is a mounting state of the stay and leveling plate of the upper surface molding tool. FIG. It is a schematic block diagram of a rotary tiller. It is a schematic block diagram of a scissors forming apparatus. It is a schematic side view of the height adjustment apparatus of a gauge body. It is a schematic block diagram of the height adjustment apparatus of a gauge body. It is the top view of the field which showed the state formed by making the last basket of an agricultural field overlap with an adjacent basket, and represented a part of basket in the cross section.

Explanation of symbols

2 Rotary tiller 18 Main rod forming tool 37 Gauge body 66 Upper surface forming tool 67 Side surface forming tool (support)
R 上面 Ra 上面 upper surface Rb 側面 side surface R1 畝 formed adjacent to the pre-formed 畝 R2 pre-formed 畝

Claims (2)

At the rear of the rotary tiller (2), there is provided a tack forming tool (18) for forming a paddle with the soil cultivated by the rotary tiller (2), and on the field on the side of the paddle forming tool (18). In a scissor forming machine that includes a gauge body (37) that supports the load on the ground and that is attached to the rear part of the traveling body and that moves the farm field to mold the basket (R) on the farm field,
When forming the ridge (R1) adjacent to the preformed ridge (R2) while partially overlapping the preformed ridge (R2), the upper surface (Ra ) Is provided, and the upper surface forming tool (66) is provided on the support body (67) erected on the gauge body (37).   The said support body (67) is comprised by the side surface shaping tool (67) which repairs the side surface (Rb) of the side by which the said preformed cage | basket (R2) was destroyed.畝 molding machine.

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