JP2005110639A - Offset implement and working method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable continuous straight work to the corner of a field. <P>SOLUTION: A levee plastering machine 1 as an example of the subject offset implement is provided with an attaching part 10 to be attached to the back of a mobile machine body, an offset mechanism 20 attached to the attaching part and a working part 50 placed at the rear end of the mechanism. The offset mechanism 20 has an offset frame 21 attached to the attaching part 10 in a laterally movable state and a link member 25 to form a parallel link structure. The working part 50 is fixed to a rotary shaft case 32 rotatably attached to the rear end of the offset frame 21. A connection member 23 rotating in a direction to keep the working direction of the working part 50 parallelly in longitudinal direction by the swinging motion of the offset mechanism 20 is placed above the rotary shaft case 32, and an extension cylinder 41 is placed between the connection member and the rotary shaft case 32. The working part 50 is subjected to offset motion parallel in the longitudinal direction by swinging the offset mechanism 20 integrally with the connection member 23 and the working part 50 by the extension cylinder 41. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an offset working machine and a working method, and relates to an offset working machine and a working method for working a position offset laterally with respect to a traveling position of a traveling machine body.

  Such a work machine is attached to the rear part of a traveling machine body such as a tractor, and performs various continuous straight line operations in a field along the traveling direction of the traveling machine body. Various work machines according to the type of work are provided. is there. Among such working machines, offset working machines that work at positions offset laterally with respect to the traveling position of the traveling machine body are known as a hull coater, a digging machine, etc. due to the special nature of the work. . (See Patent Documents 1 and 2).

  In particular, since the wiping machine forms ridges over the entire circumference of a wide field, it has been attracting attention in recent years as having achieved mechanization of wiping work requiring a great amount of time and labor. As a basic configuration of this wrinkle coater, a mounting part that is attached to the rear part of the traveling machine body and has an input shaft that receives power from the traveling machine body, an offset mechanism that is movable in the left-right direction from the mounting part, and an offset A rotating fulcrum provided on the moving end side of the mechanism, and a working unit that is arranged to be rotatable in the horizontal direction around the rotating fulcrum and performs an offset operation by power transmitted from the traveling machine body. The working unit includes a pre-processing unit that cuts a part of the old iron and deposits the soil, and a trimming unit that applies the piled soil onto the old iron that has been cut (see Patent Document 1).

JP 2001-28903 A Japanese Utility Model Publication No.57-22557

  Such an offset work machine performs a straight line work at an offset position along the travel of the traveling machine body, but when performing a straight line work along the periphery of the field in a rectangular field, the tip of the running machine body When the part reaches the end of the field, the subsequent straight line work cannot be performed, and there is a problem that unworked parts always remain at the four corners of the rectangular field.

  The present invention has been made in view of such a problem. In an offset working machine that is attached to a traveling machine body and performs a linear operation at an offset position along the travel of the traveling machine body, continuous to the corner of the field is provided. An object of the present invention is to provide an offset working machine capable of performing a linear work and a working method of the offset working machine.

  According to the first aspect of the present invention, there is provided a mounting portion mounted on the traveling machine body, an offset mechanism movable in the left-right direction from the mounting portion, and a rotation fulcrum provided on the moving end side of the offset mechanism. An offset working machine (for example, a coater 1, a groove in the embodiment) having a working part that is arranged to be pivotable in the horizontal direction as a pivot center and performs an offset work by power transmitted from the traveling machine body. Digging machine 80), and the working part against the movement of the offset mechanism to the connecting part (for example, the rotary shaft case 32 and the rotary center shaft 7 in the embodiment) via the rotation fulcrum between the offset mechanism and the working part. A connection mechanism is provided in which the working direction is held in a predetermined direction, and the working portion is rotated with respect to the rotation fulcrum by the expansion / contraction operation of the expansion / contraction cylinder.

  According to a second aspect of the present invention, the coupling mechanism is rotatably arranged with the rotation fulcrum as a rotation center, and rotates in a direction to hold the working direction of the working unit in a predetermined direction with respect to the movement of the offset mechanism. A direction holding portion (for example, the connecting member 23 in the embodiment) and an expansion / contraction cylinder connected between the direction holding portion and the working portion are provided, and the working portion rotates the rotation fulcrum by the expansion / contraction movement of the expansion / contraction cylinder. When the telescopic cylinder has a predetermined expansion / contraction amount and the expansion / contraction operation is restricted, the working direction of the working unit is held in a predetermined direction via the direction holding unit with respect to the movement of the offset mechanism. It is characterized by that.

  The invention according to claim 3 is characterized in that the working portion can be moved from one side of the left and right sides of the traveling machine body to the other side by the expansion and contraction of the telescopic cylinder.

  According to a fourth aspect of the present invention, the offset mechanism includes an offset frame having one end side rotatably connected to the mounting portion and the other end side rotatably connected coaxially to the rotation fulcrum, and arranged along the offset frame. And a link member connected to a connecting arm member whose one end is rotatably connected to the mounting portion and the other end is connected to the direction holding portion, thereby forming a parallel link mechanism.

  According to a fifth aspect of the present invention, the working section is a glazing work section provided with a pretreatment body (for example, the pretreatment section 61 in the embodiment) and a trimming body (for example, the trimming section 71 in the embodiment). It is characterized by.

  The invention of claim 6 is characterized in that the working part is a grooving working part provided with a grooving body.

  According to the seventh aspect of the present invention, there is provided a mounting portion mounted on the traveling machine body, an offset mechanism movable in the left-right direction from the mounting portion, and a rotation fulcrum provided on the moving end side of the offset mechanism. A working portion that is disposed so as to be pivotable in the horizontal direction as a rotation center and performs an offset operation by power transmitted from the traveling machine body, and a connecting portion via a rotation fulcrum between the offset mechanism and the working portion, The working method of the offset working machine is provided with a connecting mechanism that holds the working direction of the working part in a predetermined direction with respect to the movement of the offset mechanism and rotates the working part with respect to the turning fulcrum by the extending and retracting operation of the telescopic cylinder. When the traveling direction of the traveling machine body intersects the reference work line on which work is performed by the working unit, the working unit is configured by the movement of the offset mechanism and the expansion and contraction movement of the telescopic cylinder according to the traveling machine body. By rotation, by along the working position and working direction of the working unit to the reference work line, the working unit along the traveling of the traveling machine body and performing a linear offset work.

  According to the offset working machine of the first aspect, the working direction of the working portion is held in a predetermined direction with respect to the movement of the offset mechanism at the connecting portion via the rotation fulcrum between the offset mechanism and the working portion, and the telescopic cylinder By providing a coupling mechanism that rotates the working part with respect to the pivot point by expanding and contracting the work part, the working part is offset steplessly while the working direction of the working part remains in a predetermined direction with respect to the movement of the offset mechanism. While being able to move, a work part can be rotated centering | focusing on the rotation fulcrum of a work part. For this reason, when the traveling machine body changes direction in a direction deviated from the working direction of the straight line work performed by the working unit, the straight operation of the working unit can be maintained by the movement of the offset mechanism and the rotation of the working unit. As a result, it is possible to maintain the straight-ahead operation of the working unit and continue the straight-ahead operation up to the end of the farm field, and to perform the work up to the end of the farm field by continuous work only in advance. For this reason, it is possible to perform offset work with high work efficiency and good workability.

  According to the offset working machine of the second aspect, the connecting mechanism can be rotated about the rotation fulcrum as a rotation center and rotated in a direction to hold the working direction of the working unit in a predetermined direction with respect to the movement of the offset mechanism. By providing the moving direction holding part and the telescopic cylinder connected between the direction holding part and the working part, the working part can be rotated simply by extending and contracting the telescopic cylinder. If the expansion / contraction operation of the expansion / contraction cylinder is restricted in a state in which the expansion / contraction cylinder has a predetermined expansion / contraction amount, the direction holding unit and the working unit are integrated, and the working unit is held in the direction in which the direction holding unit faces. For this reason, the direction of the working unit can be held in a predetermined direction with respect to the movement of the offset mechanism.

  According to the offset working machine of the third aspect, the working part can be moved from one side of the left and right sides of the traveling machine body to the other side by the expansion and contraction movement of the telescopic cylinder, so that the working part is moved in the left-right direction of the traveling machine body. While being able to move from one side to the other, the direction can be reversed. For this reason, it is possible to move the working unit to a reverse working position where the working unit can perform a straight traveling operation while moving the traveling machine body backward. Further, since the working unit can be moved to the reverse working position only by the expansion and contraction movement of the telescopic cylinder, the workability of the installation work for installing the working unit at the reverse working position can be improved.

  According to the offset working machine of claim 4, the offset mechanism has an offset frame and a link member to form a parallel link mechanism, and when the offset mechanism and the working portion are fixed by the telescopic cylinder, Since the connecting arm member of the offset mechanism moves in a predetermined direction with respect to the movement of the mechanism, the working direction of the working unit can be held in the predetermined direction via the connecting member connected to the connecting arm member. For this reason, only by the movement of the offset mechanism, the offset movement amount of the working unit can be easily adjusted steplessly while the working direction of the working unit is kept constant in a predetermined direction. Further, since the working unit is supported by the offset frame and the link member constituting the offset mechanism, the offset frame according to the present invention is more rigid than the case where the offset mechanism is supported by one offset frame. The offset working machine can be reduced in weight.

  According to the offset working machine according to claim 5, by making the working part a glazing work part provided with a pretreatment body and a trimming body, the straight-ahead work of the working part is maintained and reaches the end of the field. Thus, it is possible to provide an offset working machine capable of performing the glazing operation with the advantage that the straight-ahead operation can be continued.

  According to the offset working machine according to claim 6, by making the working portion a grooving working portion provided with a grooving body, the straight running operation until the working portion is kept straight and reaches the end of the field. Therefore, it is possible to provide an offset working machine having a working unit capable of grooving work with the advantage of being able to continue.

  According to the working method of the offset working machine according to claim 7, when the traveling direction of the traveling machine body is a direction intersecting the reference work line, the work is performed by the movement of the offset mechanism and the rotation of the working unit according to the traveling machine body. By aligning the work position and work direction of the section along the reference work line, even when the traveling machine body approaches the end of the field and the traveling machine body changes its direction, it is possible to maintain the straight running operation of the working section. For this reason, it is possible to continue the straight-ahead operation up to the end of the field while maintaining the straight-ahead operation of the working unit, and as a result, it is possible to perform the operation up to the end of the field by continuous operation only forward. . For this reason, it is possible to perform offset work with high work efficiency and good workability.

  According to the offset working machine according to the present invention, the working direction of the working part is held in a predetermined direction with respect to the movement of the offset mechanism at the connecting part via the rotation fulcrum between the offset mechanism and the working part, By providing a coupling mechanism that rotates the working part with respect to the pivot point by expansion and contraction, the working part is offset offset steplessly while the working direction of the working part remains in a predetermined direction with respect to the movement of the offset mechanism. The working unit can be rotated about the rotation fulcrum as the rotation center. For this reason, when the traveling machine body changes its direction, it is possible to maintain the straight operation of the working unit by moving the offset mechanism and rotating the working unit, and to perform continuous work only forward to the end of the field. it can.

  Further, the coupling mechanism includes a direction holding portion that rotates about a rotation fulcrum in a direction that holds the working direction of the working portion in a predetermined direction with respect to the movement of the offset mechanism, and the direction holding portion and the working portion. With the telescopic cylinder connected between them, the working part can be rotated just by extending and retracting the telescopic cylinder, and the telescopic cylinder is restricted from extending and contracting with a predetermined amount of expansion and contraction. Then, the direction holding unit and the working unit are integrated, and the working direction of the working unit can be held in the direction in which the direction holding unit faces the movement of the offset mechanism.

  In addition, by making the working part moveable from one side of the left and right sides of the traveling machine body to the other side by the expansion and contraction movement of the telescopic cylinder, the direction of the working part is reversed only by expanding and contracting the expansion cylinder. The working unit can be moved from one side in the left-right direction of the traveling machine body to the other side. For this reason, the working unit can be easily moved to the reverse working position where the straight traveling work can be performed by the backward traveling of the traveling machine body, and the workability of the installation work for installing the working part at the reverse working position can be improved.

  Furthermore, the offset mechanism has an offset frame and a link member to form a parallel link mechanism. When the offset mechanism and the working unit are fixed by the extension cylinder, the connecting arm member moves in a predetermined direction with respect to the movement of the offset mechanism. It moves and can hold | maintain the direction of a working part in a predetermined direction via the connection part connected with a connection arm member. For this reason, only by the movement of the offset mechanism, the offset movement amount of the working unit can be easily and continuously adjusted while maintaining the working direction of the working unit in a predetermined direction. In addition, since the working unit is supported by the two members of the offset frame and the link member, the rigidity of the offset frame of the offset working machine according to the present invention is improved as compared with the case where the working unit is supported by one offset frame. The offset working machine can be reduced in weight.

  Further, by making the working part a glazing work part provided with a pretreatment body and a trimming body or a grooving work part provided with a grooving body, the straight forward work of the working part is maintained and the end of the field is maintained. Thus, it is possible to provide an offset working machine capable of performing a dashing operation or a ditching operation, which has an advantage that the straight-ahead operation up to can be continued.

  Further, according to the working method of the offset working machine according to the present invention, when the traveling direction of the traveling machine body is a direction intersecting the reference work line, the offset mechanism is moved and the working unit is rotated according to the traveling machine body. By moving the working position and working direction of the working unit along the reference working line, when the traveling machine body changes its direction, the offset mechanism is moved and the working unit is rotated to move the working unit. It is possible to maintain straight running work. For this reason, it is possible to perform work up to the end of the field by continuous work only forward.

  A preferred embodiment of an offset working machine according to the present invention will be described below with reference to FIGS. In addition, this Embodiment demonstrates the glazing machine and ditching machine which are examples of an offset working machine.

[First embodiment]
First, the wrinkle coater will be described. For convenience of explanation, the directions of the arrows shown in FIG. 1 (perspective view) and FIG. 2 (plan view) will be described below as the front-rear direction and the left-right direction. As shown in FIGS. 1 and 2, the scissor coater 1 is connected to a three-point link connection mechanism (not shown) provided at the rear portion of the traveling machine body 90, and A painting operation is performed. The wrinkle coater 1 is mounted on the traveling machine body 90 and is mounted by a mounting part 10 having an input shaft 4 (described later) to which power from the traveling machine body 90 is input, and a turning cylinder 3 provided on the mounting part 10. An offset mechanism 20 that is movable in the left-right direction, and a rotation fulcrum O that extends in the vertical direction is provided on the moving end side (rear end side) of the offset mechanism 20 and rotates in the horizontal direction around the rotation fulcrum O as a rotation center. And a working unit 50 that is movably disposed and performs an offset work by power transmitted from the input shaft 4.

  The mounting portion 10 includes a hitch frame 11 that extends in the left-right direction, and a connection frame 13 that is attached to the front side of the hitch frame 11 and can be connected to the three-point link connection mechanism of the traveling machine body 90. The above-described input shaft 4 is provided at the lower center of the hitch frame 11 in the left-right direction. The input shaft 4 is configured to transmit power from a PTO shaft (not shown) of the traveling machine body 90 via a transmission shaft (not shown).

  The offset mechanism 20 is rotatably connected to the hitch frame 11 on the front end side and extends rearward, and is arranged along the left side of the offset frame 21 so that the front end side is at the left end portion of the hitch frame 11. It has the link member 25 connected so that rotation was possible. The rear end side of the link member 25 is rotatably provided on a connecting arm member 23 a connected to a connecting member 23 that is rotatably provided on the rear end portion of the offset frame 21. The offset mechanism 20 forms a parallel link mechanism by the offset frame 21, the link member 25, the hitch frame 11, and the connecting arm member 23a.

  The offset frame 21 is a box-shaped member having a hollow inside, and is moved in the left-right direction by the expansion and contraction of the revolving cylinder 3 that is pivotally connected between the rear end portion of the offset frame 21 and the left end portion of the hitch frame 11. It can swing. A power transmission mechanism (not shown) is provided in the offset frame 21. The power transmission mechanism includes a driven shaft 29 that is disposed coaxially with the rotation fulcrum O of the working unit 50 on the rear end side of the offset frame 21, and is transmitted from the traveling machine body 90 to the input shaft 4. The power is transmitted to the driven shaft 29.

  A rotation center shaft 7 is connected to the lower portion of the driven shaft 29 so as to be coaxial with the driven shaft 29 and extend downward. That is, the rotation center shaft 7 rotates with the rotation of the driven shaft 29. A rotation shaft case 32 that covers the rotation center shaft 7 is disposed outside the rotation center shaft 7, and an upper end portion of the rotation shaft case 32 is rotatably connected to a lower rear end portion of the offset frame 21. A working unit 50 is fixedly attached to the lower end of the rotating shaft case 32. At the upper part of the rotating shaft case 32, the above-described connecting member 23 is provided which is arranged coaxially with the rotating center shaft 7 and is rotatable. That is, the connecting member 23 is not coupled to the rotation shaft case 32 and the rotation center shaft 7, and is rotatable with the rotation center shaft 7 as the rotation fulcrum O. The connecting arm member 23a described above is connected to the connecting member 23 extending in the lateral direction.

  The working unit 50 can be rotated with respect to the rotation fulcrum O by a connecting mechanism 40 connected between the connecting member 23 and the rotary shaft case 32, and can be operated with respect to the swing of the offset mechanism 20 by the connecting mechanism 40. The work direction axis O2 indicating the work direction of the unit 50 is held so as to be parallel to the traveling direction A of the traveling machine body 90. Details of the work direction axis O2 will be described later. The connection mechanism 40 includes a connection member 23 and an expansion / contraction cylinder 41 connected between the connection member 23 and the rotary shaft case 32. The telescopic cylinder 41 has its bottom end pivoted to the front end of the connecting member 23 and one end attached to the upper part of the rotary shaft case 32 extending below the connecting member 23 and extending forward. The fixed member 42 is pivotally connected to the distal end portion. For this reason, when the telescopic cylinder 41 expands and contracts, the working unit 50 rotates about the rotation fulcrum O via the fixing member 42 and the rotating shaft case 32 as the rotation center. That is, when the telescopic cylinder 41 is extended, the working unit 50 is rotated clockwise (arrow B direction), and when the telescopic cylinder 41 is contracted, the working unit 50 is rotated counterclockwise (arrow C direction). The rotation angle range of the working unit 50 is set according to the stroke size of the telescopic cylinder 41. For this reason, when the telescopic cylinder 41 having a large stroke is used, the working unit 50 can be moved in a state where the direction is reversed from one side to the other side of the left and right sides of the traveling machine body 90.

  The coupling mechanism 40 holds the working direction axis O <b> 2 of the working unit 50 so as to be parallel to the traveling direction of the traveling machine body 90 with respect to the left-right swing of the offset mechanism 20. More specifically, the coupling mechanism 40 integrates the working unit 50 and the coupling member 23 when the expansion and contraction operation of the telescopic cylinder 41 is restricted in a state where the working direction axis O2 of the working unit 50 extends in the front-rear direction. . For this reason, when the offset mechanism 20 is swung to the right in the left-right direction in the state in which the working unit 50 and the connecting member 23 are integrated, as shown in FIG. 4A, the offset mechanism constituting the parallel link mechanism. When the work direction axis O2 of the working unit 50 is maintained parallel to the front-rear direction via the connecting member 23 connected to the 20 connecting arm members 23a, and the offset mechanism 20 is further swung to the right in the left-right direction. As shown in FIG. 4 (b), the working unit 50 can be installed at a forward working position where work can be performed by the forward movement of the traveling machine body 90.

  As shown in FIG. 3 (cross-sectional view), a rotary shaft side power transmission mechanism 35 that transmits power from the rotation center shaft 7 to the working unit 50 is provided below the rotary shaft case 32. The rotation shaft side power transmission mechanism 35 is configured to be able to transmit the power transmitted to the rotation center shaft 7 to the heaven field processing unit 51, the preprocessing unit 61 and the rectifying unit 71 constituting the working unit 50. .

  The heaven field processing unit 51 of the working unit 50 cuts the upper part of the old paddle formed along the periphery of the farm field, the pre-processing unit 61 piles up the cut soil, and the trimming unit 71 cuts the piled soil. It has the function of painting on the broken old wall.

  The celestial processing unit 51 includes a celestial processing rotor 52 that can freely rotate. The celestial processing rotor 52 is connected to and supported by the rotary shaft case 32 via the celestial power transmission case 54. A heaven-side power transmission mechanism 55 is built in the heaven-power transmission case 54. The heaven-side power transmission mechanism 55 can transmit the power from the rotation center shaft 7 to the heaven-processing rotor 52 via the rotation shaft-side power transmission mechanism 35.

  The pre-processing unit 61 includes a tilling rotor 62 that can freely rotate. The tilling rotor 62 is connected to and supported by the rotary shaft case 32 via a pretreatment power transmission case 64. A preprocessing power transmission mechanism 65 is built in the preprocessing power transmission case 64. The preprocessing-side power transmission mechanism 65 includes a preprocessing-side rotation shaft 65 a that rotates by receiving power from the rotation center shaft 7 via the rotation shaft-side power transmission mechanism 35. A rotary shaft 62a of the tilling rotor 62 is coaxially connected to the front end of the pretreatment side rotary shaft 65a. The preprocessing side rotation shaft 65 a is disposed in a direction in which the rotation center is orthogonal to the rotation center of the rotation center shaft 7. In other words, the preprocessing side rotation shaft 65 a is disposed in a state where the rotation center thereof is orthogonal to the rotation center of the rotation fulcrum O of the working unit 50. Therefore, when the working unit 50 rotates about the rotation fulcrum O, the tilling rotor 62 rotates about the rotation fulcrum O as the rotation center and the pretreatment-side rotation shaft 65a as the rotation radius. As a result, the position and direction of the tilling rotor 62 can be easily calculated and specified according to the rotation angle of the working unit 50 (the preprocessing-side rotating shaft 65a).

  The trimming unit 71 includes a polyhedral drum 73 attached to a rotating shaft 71a that extends in the left-right direction and is rotatably supported, and a cylindrical portion 75 that is attached to the right end of the polyhedral drum 73 and extends in the lateral direction. . The trimming unit 71 is connected to and supported by the rotary shaft case 32 via a trimming power transmission case 77. A trimming power transmission mechanism 78 is built in the trimming power transmission case 77. The straightening side power transmission mechanism 78 can transmit the power from the rotation center shaft 7 to the polyhedral drum 73 via the rotation shaft side power transmission mechanism 35.

  The rotating shafts 51a and 71a of the heaven field processing unit 51 and the trimming unit 71 configured as described above are arranged substantially in parallel. When the rotating shaft 71a of the trimming unit 71 is in a direction perpendicular to the traveling direction A of the traveling machine body 90 shown in FIG. 2, the working unit 50 has the working direction axis O2 indicating the orientation of the working unit 50 described above as the traveling machine body. It is comprised so that it may become parallel to 90 advancing directions.

  Next, the operation of the hull coater 1 will be described using a case where one side Fa of the rectangular field F is hulled as an example. As shown in FIG. 5 (plan view), first, the traveling machine body 90 is arranged along one side Fa of the field F. Then, the telescopic cylinder 41 shown in FIG. 1 is expanded and contracted so that the working direction axis O2 of the working unit 50 is parallel to the traveling direction of the traveling machine body 90, and the expansion and contraction operation of the telescopic cylinder 41 is restricted. As a result, when the working unit 50 is integrated with the connecting member 23 and the rotating shaft case 32 shown in FIG. 1 and the offset mechanism 20 forming the parallel link mechanism is swung to the right, the working direction of the working unit 50 is changed to the front-rear direction. The work unit 50 can be moved to the right offset work position where the work can be applied by the forward traveling of the traveling machine body.

  Then, the traveling machine body 90 is moved forward and the working unit 50 is operated. As a result, as shown in FIG. 4B, the heaven field processing unit 51 cuts the upper part of the old ridge on one side Fa of the field F, the preprocessing unit 61 performs the earth filling, and the trimming unit 71 The piled soil is smeared on the cut old straw, and one side Fa of the field F is continuously smeared.

  Then, as shown in FIG. 5 again, when the traveling machine body 90 turns to the left side when the traveling machine body 90 approaches the front end peripheral position 90a of the field F (90b to 90d), the offset mechanism 20 with respect to the traveling machine body 90 is displayed. If the relative angle of the working unit 50 is left as it is, the working direction axis O2 of the working unit 50 deviates from the direction in which the one side Fa of the field F extends, and it becomes impossible to perform the smearing operation along the one side Fa of the field F. .

  However, the offset working machine 1 according to the present invention can offset the working unit 50 to the side of the traveling machine body 90 and rotate the working unit 50 with respect to the offset mechanism 20. Even when the machine body 90 changes its direction to the left side, the working direction axis O2 of the working unit 50 can be changed by changing the swing angle of the offset mechanism 20 and the rotation angle of the working unit 50 according to the traveling direction of the traveling machine body 90. A state along one side Fa of the field F can be obtained. In other words, in accordance with the forward movement of the traveling machine body 90 as the traveling machine body 90 turns to the left, the revolving cylinder 3 shown in FIG. 1 is reduced and moved so that the offset mechanism 20 swings to the left side of the hitch frame 11. Even when the traveling direction of the traveling machine body 90 is changed by extending the telescopic cylinder 41 shown in FIG. 1 so that the portion 50 rotates in the clockwise direction, the working portion 50 is positioned along one side Fa of the field F. Can be continuously installed (50a to 50d), and a continuous straight line operation to the corner of the field F can be performed.

  As described above, the plastering machine 1 according to the present invention can move the working unit 50 linearly along one side Fa of the field F even when the traveling machine body 90 changes its direction, so that the work efficiency is high. It is possible to perform a drape work with good workability.

  Further, as shown in FIG. 3, the pretreatment-side rotation shaft 65 a connected to the tilling rotor 62 of the pretreatment unit 61 constituting the working unit 50 extends in a direction perpendicular to the rotation fulcrum O of the working unit 50. Therefore, the tilling rotor 62 rotates with the rotation fulcrum O as the rotation center and the pretreatment-side rotation shaft 65a as the rotation radius. For this reason, the position and direction of the tilling rotor 62 can be easily calculated according to the rotation angle of the working unit 50 (the preprocessing-side rotating shaft 65a). For this reason, the attitude of the tilling rotor 62 can be grasped only by detecting the rotation angle of the working unit 50, the attitude control of the tilling rotor 62 is facilitated, and the accuracy of the attitude control of the tilling rotor 62 can be improved. .

  In addition, as shown in FIGS. 4A and 4B, the plastering machine 1 according to the present invention has a work direction axis O2 indicating the direction of the working unit 50 in parallel with the traveling direction of the traveling machine body 90. If the expansion / contraction cylinder 41 is expanded / contracted by a predetermined extension amount to restrict the expansion / contraction operation, only the left / right swing of the offset mechanism 20 allows the working unit 50 to remain parallel to the front / rear direction. The work position can be adjusted steplessly.

  Furthermore, by mounting the telescopic cylinder 41 having a large stroke on the padding machine 1, the working unit 50 can be moved from one side of the left and right sides of the traveling machine body 90 to the other side. For this reason, it is possible to move the working unit 50 to the offset position on the side opposite to that during normal work by simply extending and retracting the telescopic cylinder 41 and to reverse the front-rear relationship (reverse reverse). It is possible to improve the workability of installation work in which the working unit 50 is reversed and installed.

[Second Embodiment]
Next, a second embodiment of the offset working machine according to the present invention will be described. In the second embodiment, a plastering machine, which is an example of an offset working machine, will be described as in the first embodiment. In the second embodiment, only differences from the first embodiment will be described, and the same reference numerals will be given to the same aspects as those in the first embodiment, and the description thereof will be omitted.

  As shown in FIGS. 6 (perspective view) and FIG. 7 (perspective view), the wiping machine 1 rotates the connecting member 23 and the frame portion 15 around the rotation center shaft 7 extending downward from the rear end portion of the offset frame 21. It is provided freely. The frame portion 15 can be rotated with respect to the rotation fulcrum O by the expansion / contraction operation of the expansion / contraction cylinder 41 of the connection mechanism 40, and the extending direction of the frame portion 15 with respect to the swing of the offset mechanism 20 by the connection mechanism 40. Is held in a predetermined direction. The telescopic cylinder 41 has a rod-side end pivoted to the connecting member 23 and a bottom-side end pivoted to a fixing member 42 fixed to the tip of the frame portion 15.

  The connection mechanism 40 integrates the frame portion 15 with the connection member 23 when the expansion / contraction operation of the expansion / contraction cylinder 41 is restricted in a state where the frame portion 15 extends in the front-rear direction. As a result, when the offset mechanism 20 is swung left and right in this state, the frame portion 15 connected to the connecting member 23 by the offset mechanism 20 constituting the parallel link mechanism is parallel to the front-rear direction, as shown in FIG. Move while maintaining the state.

  As shown in FIGS. 6 and 7 again, the frame portion 15 has a winding transmission mechanism (not shown) having a vertical rotation shaft (not shown) arranged coaxially with the rotation center shaft 7 as a power transmission shaft. Is built in. This winding transmission mechanism transmits the power transmitted to the rotation center shaft 7 to the tip portion of the frame portion 15 via the vertical rotation shaft. A heaven field processing unit 51, a preprocessing unit 61, and a glazing unit 71 are fixedly attached to the lower end of the front end of the frame unit 15 via a drive shaft case 16 extending downward. The drive shaft case 16 includes a power transmission mechanism (not shown) that transmits power from the winding transmission mechanism built in the frame unit 15 to the heaven processing unit 51, the preprocessing unit 61, and the trimming unit 71. .

  The heaven processing rotor 52 of the heaven processing unit 51 is connected to and supported by the drive shaft case 16 via the heaven power transmission case 54. The heaven processing rotor 52 has a center of rotation via a heaven-side power transmission mechanism 55 shown in FIG. 3 in the heaven power transmission case 54, a power transmission mechanism in the drive shaft case 16, and a power transmission mechanism in the frame portion 15. Power from the shaft 7 is transmitted.

  The tilling rotor 62 of the pretreatment unit 61 is connected to and supported by the drive shaft case 16 via a pretreatment power transmission case 64. The tilling rotor 62 is separated from the rotation center shaft 7 via the pretreatment-side rotation shaft 65a shown in FIG. 3 in the pretreatment power transmission case 64, the power transmission mechanism in the drive shaft case 16, and the power transmission mechanism in the frame portion 15. Power is transmitted. 3 has a rotation center extending in a direction perpendicular to the rotation center of a vertical rotation shaft (not shown) constituting the power transmission mechanism in the drive shaft case 16.

  As shown in FIG. 8 (c), the trimming unit 71 is disposed in the vicinity of the rear end of the offset frame 21, and the rotation shaft 71 a of the trimming unit 71 has its rotation center S as the rotation of the working unit 50. The fulcrum O extends in a direction intersecting with the vicinity region including the rotation center. Therefore, when the working unit 50 rotates about the rotation fulcrum O, the polyhedral drum 73 is substantially the same as the case where the rotation center S of the rotation shaft 71a is arranged so as to be orthogonal to the rotation center of the rotation fulcrum O. It rotates with the same trajectory. Therefore, the position and direction of the trimming unit 71 can be easily calculated according to the rotation angle of the rotation shaft 71a. For this reason, it is possible to grasp the posture of the trimming unit 71 only by detecting the rotation angle of the working unit 50, the posture control of the trimming unit 71 is facilitated, and the accuracy of the posture control of the trimming unit 71 is improved. be able to.

  Further, the offset working machine 1 according to the second embodiment can offset the working unit 50 to the side of the traveling machine body 90 by the offset mechanism 20 and rotate the working unit 50 with respect to the offset mechanism 20. Therefore, even when the traveling machine body 90 changes direction to the left side, the swing angle of the offset mechanism 20 and the rotation angle of the working unit 50 are changed according to the traveling direction of the traveling machine body 90. The work direction axis O2 of the unit 50 can be set along the one side Fa of the field F. That is, as shown in FIG. 8B, when the offset mechanism 20 swings to the right side and the traveling machine body 90 turns to the left side from the state in which the work direction axis O2 of the working unit 50 is along one side Fa of the field F. As shown in FIG. 8A, the revolving cylinder 3 is contracted so that the offset mechanism 20 swings to the left, and the telescopic cylinder 41 is expanded so that the working unit 50 rotates clockwise. Thus, the working unit 50 can be continuously installed at a position along one side Fa of the farm field F (50a to 50b). For this reason, it is possible to perform a continuous smearing straight line operation to the corner of the field F.

[Third embodiment]
Next, a third embodiment of the offset working machine according to the present invention will be described. In the third embodiment, a ditcher that is an example of an offset working machine will be described. In the third embodiment, only differences from the first embodiment will be described, and the same reference numerals will be given to the same aspects as those in the first embodiment, and the description thereof will be omitted.

  As shown in FIG. 9 (plan view), the groove digging machine 80 is provided with a working portion 81 capable of grooving at the rear end portion of the offset frame 21. The working unit 81 includes a main body frame 82 that is rotatably attached to a lower rear end of the offset frame 21 and extends downward, and a grooved body 83 that is rotatably attached to the main body frame 82. The main body frame 82 can be rotated with respect to the rotation fulcrum O by the expansion / contraction operation of the expansion / contraction cylinder 41 of the connection mechanism 40 connected between the connection member 23 and the main body frame 82. The orientation of the main body frame 82 is held parallel to the front-rear direction of the traveling machine body 90 with respect to the swing. The grooving body 83 includes a rotary shaft 84 that is rotatable in the vertical direction and a spiral blade body 85 that is formed on the outer surface of the rotary shaft 84. A soil discharge mechanism (not shown) for discharging the soil cut by the spiral blade body 85 of the groove body 83 to the outside from the upper portion of the groove body 83 is provided on the upper portion of the working unit 81.

  The working unit 81 is disposed so as to be rotatable about a rotation fulcrum O at the rear end of the offset frame 21, and the rotation center of the main body frame 82 and the rotation center of the rotation shaft 84 are the rotation of the working unit 50. It is arranged coaxially with the rotation center of the moving fulcrum O. The rotating shaft 84 is adapted to transmit power via the driven shaft 29 shown in FIG.

  For this reason, when the working unit 81 rotates, the main body frame 82 and the grooved body 83 rotate about the rotation fulcrum O, so that the positions and directions of the main body frame 82 and the grooved body 83 are the working unit 81. It is possible to easily perform arithmetic processing according to the rotation angle. As a result, the postures of the main body frame 82 and the grooved body 83 can be grasped only by detecting the rotation angle of the working unit 81, and the posture control of the main body frame 82 and the grooved body 83 is facilitated. The accuracy of the posture control of the grooving body 83 can be improved. The rotation axis 84 of the main body frame 82 and the grooving body 83 is not limited to the one whose rotation center is arranged coaxially with the rotation center of the rotation fulcrum O of the working unit 50. You may arrange | position so that it may shift | deviate from a center and may extend in parallel.

  1 is provided at the rear end of the offset mechanism 20 by providing the work portion 81 capable of digging such a groove at the rear end of the offset mechanism 20. The same effect as the case can be obtained. That is, it is possible to perform continuous grooving linear work up to the corner of the field F, and to adjust the work position of the work part 81 steplessly while keeping the work direction of the work part 81 parallel to the front-rear direction. it can.

1 is a perspective view of a glazing machine according to a first embodiment of the present invention. A plan view of this wrinkle coater is shown. The cross-sectional view of the working part provided in the glazing machine is shown. The top view of the glazing machine for demonstrating operation | movement of the connection mechanism provided in the glazing machine is shown. The top view of the haze coater for demonstrating operation | movement of a haze coater is shown. The perspective view of the brush coater concerning the 2nd Embodiment of this invention is shown. The perspective view of this wrinkle coater is shown. The top view of the haze coater for demonstrating operation | movement of a haze coater is shown. The top view of the ditcher concerning the 3rd Embodiment of this invention is shown.

Explanation of symbols

1 Spider coater (offset work machine)
7 Center axis of rotation (connecting part)
DESCRIPTION OF SYMBOLS 10 Mounting part 20 Offset mechanism 21 Offset frame 23 Connecting member (direction holding part)
32 Rotating shaft case (connection part)
40 coupling mechanism 41 telescopic cylinder 50, 81 working part 51 heaven processing part (pretreatment body)
61 Pretreatment part (pretreatment body)
71 Arrangement part (arrangement body)
80 Grooving machine (offset working machine)
83 Groove body 90 Traveling machine body O Rotating fulcrum

Claims (7)

A mounting portion mounted on the traveling machine body, an offset mechanism movable in the left-right direction from the mounting portion, and a rotation fulcrum provided on the moving end side of the offset mechanism, with the rotation fulcrum as a rotation center in the horizontal direction An offset working machine having a working unit arranged to be rotatable and performing an offset work by power transmitted from the traveling machine body,
A working portion of the working portion is held in a predetermined direction with respect to the movement of the offset mechanism at a connecting portion of the offset mechanism and the working portion via the rotation fulcrum, and the working portion is expanded and contracted by the telescopic cylinder. An offset working machine provided with a connecting mechanism that rotates the rotating fulcrum with respect to the rotating fulcrum. The connection mechanism is disposed so as to be rotatable about the rotation fulcrum as a rotation center, and rotates in a direction to hold the working direction of the working unit in a predetermined direction with respect to the movement of the offset mechanism. And the telescopic cylinder connected between the direction holding part and the working part,
By the expansion / contraction movement of the expansion / contraction cylinder, the working portion rotates about the rotation fulcrum,
When the telescopic cylinder has a predetermined expansion / contraction amount and the expansion / contraction operation is restricted, the working direction of the working unit is held in the predetermined direction via the direction holding unit with respect to the movement of the offset mechanism. The offset working machine according to claim 1, characterized in that:   The offset working machine according to claim 1 or 2, wherein the working unit is movable from one side of the left and right sides of the traveling machine body to the other side by the stretching movement of the telescopic cylinder.   The offset mechanism has one end side rotatably connected to the mounting portion and the other end side rotatably connected coaxially with the rotation fulcrum, and is arranged in parallel along the offset frame. 4. A parallel link mechanism having a link member connected to a connecting arm member having a side rotatably connected to the mounting portion and a second end connected to the direction holding portion. The offset work machine described in.   The offset working machine according to any one of claims 1 to 4, wherein the working unit is a wrinkle coating working unit including a pretreatment body and a trimming body.   The offset working machine according to any one of claims 1 to 4, wherein the working unit is a grooving working unit including a grooving body. A mounting portion mounted on the traveling machine body, an offset mechanism movable in the left-right direction from the mounting portion, and a rotation fulcrum provided on the moving end side of the offset mechanism, with the rotation fulcrum as a rotation center in the horizontal direction A working part that is arranged so as to be pivotable and performs an offset work by power transmitted from the traveling machine body, and the offset mechanism is connected to the connecting part of the offset mechanism and the working part via the turning fulcrum. Working method of an offset working machine provided with a connecting mechanism that holds the working direction of the working part in a predetermined direction with respect to the movement of the working part, and rotates the working part with respect to the turning fulcrum by an expansion / contraction operation of an expansion / contraction cylinder Because
When the traveling direction of the traveling machine body is a direction intersecting a reference work line on which work is performed by the working unit, movement of the offset mechanism and expansion / contraction movement of the telescopic cylinder according to the traveling of the traveling machine body An offset work characterized in that the working part performs a linear offset work along the progress of the traveling machine body by turning the working position and working direction of the working part along the reference work line by turning. The working method of the machine.

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