JP4398697B2 - Offset work machine - Google Patents

Description

  The present invention relates to an offset working machine, and more particularly to an offset working machine that works at 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 portion that is mounted on the rear portion of the traveling machine body and has an input shaft to which power from the traveling machine body is input, and a mounting section that holds the working direction of the working unit in a predetermined direction. And an offset mechanism that is movable in the left-right direction, and a working unit that is fixed to the moving end side of the offset mechanism and is rotated by the power transmitted from the traveling machine body to perform the offset work.

  The offset mechanism has a first link member whose one end is pivotally connected to the mounting portion and the other end is pivotally connected to a mounting member constituting the moving end side of the offset mechanism, and is arranged in parallel along the first link member. Has a second link member pivoted to the mounting portion and the other end pivoted to the mounting member to constitute a parallel link mechanism. It is attached in a state where the working part is fixed to the end of the attachment member. 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).

  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.

  Therefore, in the conventional offset working machine, the pivotal state of either one of the first link member and the second link member pivoted to the mounting member is used as a pivot, and the pivotal state of the other pivotal portion. And the working part is configured to be rotatable together with the mounting member.

JP 2002-354904 A Japanese Utility Model Publication No.57-22557

  In such a conventional offset working machine, in order to reverse the working direction of the working part, the pivoting state of the pivoting part that does not become the pivotal fulcrum is released, and the mounting member is rotated about the pivotal fulcrum. The work unit is moved to reversely move from one side of the left and right sides of the traveling machine body to the other side, and the first link member or the second link member released from the pivoted state is pivoted to the mounting member.

  Such reversing work for changing the working direction of the working unit must be performed by a worker on the traveling machine body once getting off the traveling machine body. For this reason, the interruption time of offset work becomes long and the problem that the work efficiency of the whole offset work falls arises.

  In addition, although the working part can be rotated via the mounting member, the work part is heavy in weight, so that a large amount of labor is required for the work of rotating the working part by the operator. For this reason, the problem that the work part inversion work is troublesome arises.

  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 traveling machine body, the work part can be easily reversed. An object is to provide an offset working machine.

The invention of claim 1 is provided with a mounting portion mounted on the traveling machine body, an offset mechanism portion movable in the left-right direction from the mounting portion, and a first rotation fulcrum provided on the moving end side of the offset mechanism portion. And a working unit that is disposed so as to be pivotable in the horizontal direction around the first pivot point and performs an offset operation by forward and backward movements of the traveling machine body and power transmitted from the traveling machine body. The offset working machine (for example, the varnishing machine 1 and the grooving machine 80 in the embodiment), which is disposed between the offset mechanism part and the working part, and is first rotated toward the moving end side of the offset mechanism part. It can be turned around a second turning fulcrum provided at a position different from the fulcrum, and can rotate with the working part by the expansion and contraction movement of the telescopic cylinder to change the working direction of the working part on the left and right sides of the traveling machine body From the forward direction on one side to the reverse direction on the other side Have a reversible pivoting mechanism, pivoting mechanism, the rotation center coaxially through the first pivot point of the working portion of the second rotation fulcrum is rotatably disposed as a pivot center A first guide portion (for example, the first hole 55 in the embodiment) that is inserted through the working portion rotation support shaft, and a second guide portion (for example, in the embodiment) that is inserted through the rotation member support shaft. A rotation member having a second hole portion 56), and an expansion / contraction cylinder coupled between the rotation member and the working portion. The second guide part moves while changing the relative position to the rotating member support shaft, and the first guide part moves while changing the relative position to the working part turning support shaft to connect with the rotating member of the telescopic cylinder. While rotating the second rotation fulcrum as the rotation center while changing the position of the part to the downstream side of the rotation direction of the working unit, The working unit is characterized by rotating the first pivot point as the pivot center.

According to a second aspect of the invention, in the invention of offset working machine according to claim 1, the working part pivot shaft at one end of the first guide portion of the pivot member abuts the work of the working unit The direction is the forward direction on one side of the left and right sides of the traveling machine body. When the working part pivot is in contact with the other end of the first guide part, the working direction of the working part is the left and right side of the traveling machine body. It is the reverse direction of the other side.

According to a third aspect of the present invention, there is provided the offset working machine according to the first or second aspect , wherein the oscillating cylinder is connected to the offset mechanism unit and moves the offset mechanism unit by an expansion / contraction operation, and the oscillating cylinder and the offset mechanism. And a power transmission member that is interposed between the power transmission member and transmits the expansion / contraction operation of the swing cylinder to the offset mechanism.

According to a fourth aspect of the present invention, in the offset working machine according to the third aspect , the power transmission member has a guide groove that engages with a guide shaft provided in the offset mechanism portion, and the guide groove is mounted. The drive side clutch provided on the working portion is rotated by receiving the power transmitted from the traveling machine body, and the passive side clutch provided on the working portion (for example, the front passive clutch 6 and the rear passive clutch 7 in the embodiment) is engaged. For this purpose, the engaging groove that holds the offset mechanism at the position where the offset mechanism is moved by the predetermined offset movement amount, and the passive side clutch is detached from the driving side clutch and moved to the rear side so that the working part can be rotated. In order to achieve this, it is characterized in that it has a turning groove portion that holds the offset mechanism portion at a position moved by a predetermined offset movement amount.

According to a fifth aspect of the present invention, in the invention of the offset working machine according to any one of the first to fourth aspects, the mounting portion is provided with a lock provided on the working portion so as to be swingable on the mounting portion. A lock member that can be engaged with the member (for example, the lock plate 62 in the embodiment), and is rotatably connected between the lock member and the offset mechanism unit, and operates in conjunction with the movement of the offset mechanism unit. A locking device having a coupling mechanism for swinging the locking member is provided, and the locking device is locked when the passive clutch is engaged with the driving clutch by the movement of the offset mechanism. And the working part is fixed to the mounting part, and when the passive clutch is detached from the driving clutch, the lock member is detached from the locking member and the working part is not fixed to the mounting part. Status Characterized in that it.

The invention of claim 6 is the invention of an offset working machine according to any of claims 1 to 5, the offset machine構部has one end rotatably connected to and the other end side of the offset mechanism portion to the attachment portion A first link member disposed on the moving end side and rotatably connected to the frame, and arranged in parallel along the first link member and having one end side rotatably connected to the mounting portion and the other end The side has a second link member rotatably connected to the rear frame to form a parallel link mechanism.

A seventh aspect of the present invention is the offset working machine according to any one of the first to sixth aspects, wherein the working section is a glazing work section provided with a pretreatment section and a trimming section. .

The invention of claim 8 is the invention of the offset working machine according to any one of claims 1 to 6 , wherein the working part is a grooving work part provided with a grooving part (for example, the grooving body 83 in the embodiment). It is characterized by being.

  According to the offset working machine of the first aspect, the rotating member disposed between the offset mechanism unit and the working unit is arranged at a position different from the first rotating fulcrum on the moving end side of the offset mechanism unit. When the end of the expansion / contraction cylinder is connected to the rotation member by being able to rotate about the provided second rotation fulcrum, the connection portion where the expansion / contraction cylinder connects to the rotation member is the rotation member. Can be rotated in the same direction as the rotation direction. For this reason, the rotation angle range of the working unit until the end of the connecting portion side of the telescopic cylinder that moves along with the rotation of the working unit approaches the first rotation fulcrum can be expanded. The working unit can be moved at a large rotation angle only by the expansion and contraction operation of the expansion cylinder. In addition, the rotating member allows the working direction of the working unit to be reversed by moving the working direction of the working unit from the forward direction on one side of the left and right sides of the traveling machine body to the backward direction on the other side by the telescopic movement of the telescopic cylinder. Only the working direction of the working unit can be reversed. For this reason, the reversing work of the working part becomes extremely easy, and the work effort of the reversing work can be reduced.

The rotation mechanism includes a rotation member having a first guide portion that passes through the work portion rotation support shaft and a second guide portion that passes through the rotation member support shaft, a rotation member, and a work portion. When the telescopic cylinder is expanded and contracted, the rotating member moves while changing the relative position of the second guide portion relative to the rotating member support shaft and the first The guide part moves while changing the relative position to the working part turning support shaft, and rotates the second turning fulcrum while changing the position of the connecting portion of the telescopic cylinder to the turning member downstream in the turning direction of the working part. While rotating as a movement center, the working part rotates around the first rotation fulcrum as the rotation center. For this reason, when the telescopic cylinder rotates together with the working part in accordance with the telescopic movement of the telescopic cylinder, the position of the connecting part moves to the downstream side in the rotational direction of the working part. However, the amount of movement approaching the working part rotation spindle side can be suppressed. For this reason, an expansion / contraction cylinder with a large stroke can be mounted on the working part, and the rotation angle range of the working part can be further expanded.

According to the offset working machine of the second aspect, when the working portion rotation support shaft comes into contact with the one end portion of the first guide portion, the working direction of the working portion becomes the forward direction, and the other side of the first guide portion. When the working part rotation support shaft comes into contact with the end on the side, the working direction of the working part becomes the reverse direction, so that if the working part rotation support shaft comes into contact with any one of the both end portions of the first guide part The direction of the working unit is the forward direction or the reverse direction. For this reason, the direction of the working part can be reliably and easily reversed from the forward direction to the reverse direction or from the reverse direction to the forward direction without depending on the operator's intuition.

According to the offset working machine of the third aspect , the power transmission member is connected by connecting the rocking cylinder for rocking the offset mechanism part and interposing the power transmission member between the rocking cylinder and the offset mechanism part. If the member is provided with a function for setting the extension amount of the swing cylinder to a predetermined value, the offset movement amount of the offset mechanism unit that moves in accordance with the expansion and contraction of the swing cylinder can be set to a desired amount.

According to the offset working machine of the fourth aspect , the power transmission member is provided with a guide groove that engages with a guide shaft provided in the offset mechanism portion, and the guide groove is an engagement that makes the offset mechanism portion a predetermined offset movement amount. When the guide shaft is engaged with the engagement groove portion by having the groove portion or the rotation groove portion, the passive side clutch provided in the working portion is engaged with the drive side clutch, or the passive side clutch It is possible to reliably and easily perform the operation of detaching the motor from the drive side clutch and moving it to the rear side to enable the rotation of the working part without relying on the operator's intuition.

According to the offset working machine of the fifth aspect , the working part is locked to the mounting part and the offset mechanism part is moved in a state where the passive side clutch is engaged with the driving side clutch only by moving the offset mechanism part. By simply providing a locking device that allows the passive clutch to be detached from the driving clutch to bring the working part into an unlocked state, the working part is locked to the mounting part only by moving the offset mechanism part. It can be canceled. For this reason, it is possible to reduce the labor of the lock operation and the release operation of the working unit.

According to the offset working machine of claim 6 , the offset mechanism portion includes the first link member and the second link member to form a parallel link mechanism, thereby restricting the expansion and contraction movement of the expansion cylinder. By only moving the mechanism unit, 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.

According to the offset working machine of the seventh aspect , the work unit is made into a glazing work unit having a pre-processing unit and a trimming unit, so that the reversing operation of the work unit is easy and the driven clutch is driven. The work to engage the side clutch and the work to move the working part to a rotatable position are easy, and the locking work to lock the working part to the mounting part and the releasing work to release this locked state are easy. It is possible to provide an offset working machine that has an advantage and is capable of performing a wrinkling operation.

According to the offset working machine of the eighth aspect , the working portion is a grooving working portion provided with a grooving portion, so that the reversing operation of the working portion is easy and the driven clutch is engaged. The work to be combined and the work part to be moved to a rotatable position are easy, and the lock work to lock the work part to the mounting part and the release work to release this locked state are easy. Therefore, it is possible to provide an offset working machine capable of grooving.

  According to the offset working machine according to the present invention, the second rotation fulcrum that is the rotation fulcrum of the rotation member is disposed at a position different from the first rotation fulcrum that is the rotation fulcrum of the working unit. When the end portion of the expansion / contraction cylinder is connected to the rotation member, the connecting portion where the expansion / contraction cylinder connects to the rotation member can be rotated in the same direction as the rotation direction of the rotation member. For this reason, the rotation angle range of the working unit until the end of the connecting portion side of the telescopic cylinder that moves along with the rotation of the working unit approaches the first rotation fulcrum can be expanded. The working part can be moved at a large rotation angle by the expansion and contraction of the expansion cylinder. In addition, the rotating member enables the work part to be reversed from the forward direction to the backward direction by the expansion and contraction movement of the telescopic cylinder, thereby facilitating the work part inversion work and reducing the work effort of the reverse work. be able to.

  The rotation mechanism includes a rotation member having a first guide portion that passes through the work portion rotation support shaft and a second guide portion that passes through the rotation member support shaft, a rotation member, and a work portion. And the telescopic cylinder connected between the two, when the telescopic cylinder rotates together with the working part along with the telescopic movement of the telescopic cylinder, the connecting part can be moved downstream in the rotational direction of the working part. it can. For this reason, it is possible to suppress the amount of movement of the connecting portion closer to the working unit rotation support shaft side with respect to the rotation angle of the working unit, and it is possible to mount the telescopic cylinder having a large stroke on the working unit. The rotation angle range of the working unit can be further expanded.

  In addition, when the working part rotation support shaft comes into contact with either of the end portions on both sides of the first guide part, the working direction of the working part becomes the forward direction or the backward direction, so that the direction of the working part is reversed from the forward direction. It can be easily reversed in the direction or from the reverse direction to the forward direction.

  Further, by connecting a swing cylinder to the offset mechanism section and interposing a power transmission member between the swing cylinder and the offset mechanism section, the extension amount of the swing cylinder is set to a predetermined value on the power transmission member. When a function or the like is provided, the offset movement amount of the offset mechanism portion that moves according to the expansion and contraction of the swing cylinder can be set to a desired amount.

  The power transmission member is provided with a guide groove that engages with a guide shaft provided in the offset mechanism portion, and the guide groove has an engagement groove portion and a rotation groove portion that make the offset mechanism portion a predetermined offset movement amount. Thus, when the guide shaft is engaged with the engagement groove, the passive clutch provided in the working portion is engaged with the driving clutch, or the passive clutch is detached from the driving clutch and moved rearward. Thus, it is possible to reliably and easily perform the operation of enabling the rotation of the working unit without depending on the operator's intuition.

  In addition, the working part is locked to the mounting part while the passive side clutch is engaged with the driving side clutch simply by moving the offset mechanism part, and the passive side clutch is detached from the driving side clutch only by moving the offset mechanism part. By providing the locking device that brings the working part into the unlocked state, the working part can be locked to the mounting part only by moving the offset mechanism part, and the locked state can be released. For this reason, it is possible to reduce the labor of the lock operation and the release operation of the working unit.

  In addition, the offset mechanism unit includes the first link member and the second link member to form a parallel link mechanism. When the expansion / contraction movement of the expansion / contraction cylinder is restricted, only the movement of the offset mechanism unit is required. The offset movement amount of the working unit can be easily adjusted steplessly while the working direction is kept constant in a predetermined direction.

  In addition, the work unit can be easily reversed and driven by making it a glazed work part with a pre-processing part and a trimming part or a grooving work part with a grooving part. The work of engaging the side clutch and the work of moving the working part to a rotatable position are easy, and the locking work of locking the working part to the mounting part and the releasing work of releasing this locked state are easy. It is possible to provide an offset working machine capable of grooving work and an offset working machine capable of grooving work having the advantage of being easy.

  Hereinafter, preferred embodiments of an offset working machine according to the present invention will be described 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 arrows shown in FIG. 1 (plan view) will be described below as the front-rear direction and the left-right direction.

  As shown in FIG. 1, FIG. 2 (rear side view) and FIG. 3 (left side view), the wrinkle coater 1 is connected to a three-point link connecting mechanism (not shown) provided at the rear portion of the traveling machine body 90. Thus, the wrinkling operation is performed according to the forward movement and the backward movement of the traveling machine body 90. The hull coater 1 is mounted on a traveling machine body 90 and receives an input shaft 4 (described later) to which power from the traveling machine body 90 is input, and an offset mechanism unit that can swing from the mounting part 10 in the left-right direction. 20 and a first rotating fulcrum O1 provided on the moving end side (rear end side) of the offset mechanism unit 20 is disposed so as to be rotatable in the horizontal direction around the rotation center. And a working unit 40 that performs an offset work with the power transmitted from the moving and traveling machine body 90.

  The mounting portion 10 includes a connection frame 11 that can be connected to the three-point link connection mechanism of the traveling machine body 90, and a main frame 13 that is attached to the rear side of the connection frame 11. The input shaft 4 described above is provided at the lower center of the connecting 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). A pair of support arms 12, 12 ′ projecting rearward with a predetermined interval in the left-right direction are attached to the rear end side of the connecting frame 11 so as to be rotatable in the vertical direction. The main frame 13 is fixed to the rear end portion of '. The main frame 13 extends further to the left than the support arm 12 disposed on the left.

  The offset mechanism unit 20 is formed of a support shaft 15 on the right side of the pair of support shafts 14 and 15 projecting upward at a predetermined interval in the left-right direction on the main frame 13 extending from the support arm 12. A first link member 23 pivotally connected to the frame 21 after the one end side is pivotally connected to the upper portion and the other end side is disposed on the moving end side of the offset mechanism portion 20, and is arranged along the first link member 23. A second link member 25 whose one end is pivotally connected to the upper portion of the left support shaft 14 and whose other end is pivotally connected to the rear frame 21; and one end projects from the lower end of the main frame 13; A third portion that extends downward and is pivotally connected to a lower portion of a support shaft 16 that is disposed substantially coaxially with the support shaft 14 and has the other end portion pivoted to a lower end portion of a transmission frame 41 that extends from the working portion 40 to be described later. And a link member 27 to form a parallel link mechanism. It is. That is, the offset mechanism unit 20 forms a parallel link mechanism by the main frame 13, the first link member 23, the second link member 25, the third link member 27, and the rear frame 21. The offset mechanism section 20 can swing in the left-right direction by the expansion and contraction of a swing cylinder 29 described later.

  A pair of working portion rotation support shafts 42 and 43 extending in the vertical direction are provided on the top and bottom surfaces of the transmission frame 41 extending from the working portion 40. These working part rotating support shafts 42 and 43 are coaxially arranged, and the upper working part rotating support shaft 42 is rotatably attached to the lower portion of the rear frame 21, and the lower working part rotating support shaft 42. The shaft 43 is rotatably connected to the rear end portion of the second link member 27 described above. The rotation centers of these working unit rotation support shafts 42 and 43 are arranged coaxially with the pivot shaft of the second link member 25 pivoted to the rear frame 21. That is, the working unit 40 can be rotated in the horizontal direction with the point on the central axis of the pair of working unit rotation support shafts 42 and 43 as the first rotation support point O1 described above. The working unit 40 can be rotated by a rotating mechanism 50 provided between the rear frame 21 and the working unit 40. Details of the rotation mechanism 50 will be described later.

  The transmission frame 41 is box-shaped and extends in the left-right direction, and is attached to the base end side thereof in a state where a work main body portion 44 for performing a glazing operation is fixed. A front passive clutch 6 for forward operation extending in the front-rear direction is provided on the front side surface of the transmission frame 41, and a rear passive clutch 7 for reverse operation extending in the front-rear direction is provided on the rear side surface of the transmission frame 41. It has been. These front-side passive clutch 6 and rear-side passive clutch 7 (hereinafter referred to as “passive clutches 6, 7”) are engaged with a drive-side clutch 8 that is attached to the main frame 13 and is driven to rotate by power from the input shaft 4. Then power is transmitted. A power transmission mechanism (not shown) is incorporated in the transmission frame 41, and this power transmission mechanism is configured to transmit power from the passive clutches 6 and 7 to the work main body 44.

  The work main body 44 includes a pre-processing unit 45 that cuts an old paddle formed along the periphery of the field and deposits the soil, and a trimming unit 47 that applies the piled soil onto the cut old paddle. It becomes.

  The pretreatment unit 45 includes a tilling rotor 46 supported so as to be rotatable. The tilling rotor 46 is connected to and supported by the transmission case 41, and the power from the passive clutches 6 and 7 is transmitted through the power transmission mechanism in the transmission case 41. The trimming unit 47 includes a polyhedral drum 48 that is rotatably supported. The polyhedral drum 48 is connected to and supported by the transmission case 41, and the power from the passive clutch is transmitted through the power transmission mechanism in the transmission case 41.

  In the working unit 40 configured as described above, when the extending direction of the rotating shaft 48a of the polyhedral drum 48 is a direction orthogonal to the traveling direction A of the traveling machine body 90, the working direction axis H indicating the direction of the working unit 40 is The traveling body 90 is configured to be parallel to the traveling direction A.

  As shown in FIG. 6 (plan view), the rotation mechanism 50 that rotates the working unit 40 is on the left side in the left-right direction from the first rotation fulcrum O1 of the working unit 40 provided on the rear end side of the offset mechanism unit 20. Rotating with the working unit 40 by the expansion / contraction movement of the expansion / contraction cylinder 51, with another rotation fulcrum (hereinafter referred to as “second rotation fulcrum O2”) provided at a position having a predetermined distance at the center. Thus, the working direction of the working unit 40 is reversed from the forward direction on one side of the left and right sides of the traveling machine body to the backward direction on the other side. The second rotation fulcrum O2 is a point that passes on the center line of the support shaft that protrudes upward from the transmission shaft case 41.

  More specifically, the rotation mechanism 50 is disposed so as to be rotatable about the second rotation fulcrum O2 as a rotation center, and is disposed on the same axis as the first rotation fulcrum O1 of the working unit 40. A long hole-shaped first hole portion 55 that passes through the rotation support shaft 42 and a long hole-like second hole portion 56 that passes through the rotation member support shaft 52 projecting downward from the rear frame 21 are provided. And the above-described telescopic cylinder 51 connected between the rotating member 54 and the working unit 40.

  The rotating member 54 is plate-shaped, the first hole 55 is formed on the left side of the rotating member 54, is curved with a predetermined radius of curvature in a convex shape on the front side, and its width is the working unit rotating support. The diameter is substantially the same as the diameter of the shaft 42. The second hole 56 is formed on the right side of the rotation member 54 and extends linearly in an oblique direction, and the width thereof is substantially the same as the diameter of the rotation member support shaft 52. The rod-side end of the telescopic cylinder 51 is pivoted to the right end of the rotating member 54, and the bottom-side end of the telescopic cylinder 51 is pivoted to the upper portion of the working unit 40.

  When the extension amount of the telescopic cylinder 51 reaches a predetermined amount (for example, fully contracted state), the working portion rotation support shaft 42 contacts the left end portion of the first hole portion 55 and the left end portion of the second hole portion 56. As shown in FIG. 4, the working unit 40 is positioned on the right side in the left-right direction of the traveling machine body 90, and the working direction of the working part 40 is determined by the forward movement of the traveling machine body 90. It becomes the forward direction in which forward work is possible. When the telescopic cylinder 51 is extended from such a state, as shown in FIG. 7A (plan view) and FIG. 7B (plan view), the rotating member 54 is located on the left side of the second hole 56. The end portion moves in a direction away from the rotation member support shaft 52 and the front end portion of the first hole 55 moves in a direction away from the work portion rotation support shaft 42 to move the rotation member 54 of the telescopic cylinder 51. The connecting portion 51a rotates in the direction of arrow B with the second rotation fulcrum O2 as the rotation center while moving to the downstream side in the rotation direction of the working unit 40, and the working unit 40 uses the first rotation fulcrum O1. It rotates in the direction of arrow B as the center of rotation.

  Further, when the telescopic cylinder 51 is further extended, as shown in FIG. 8A (plan view) and FIG. 8B (plan view), the rotation member 54 reverses the movement in the lateral direction. The right end of the two holes 56 moves away from the rotating member support shaft 52, and the front end of the first hole 55 further moves away from the working portion support shaft 42 to expand and contract. While the connecting portion 51a of the cylinder 51 and the rotating member 54 further moves downstream in the rotation direction of the working unit 40, the cylinder 51 rotates about the second rotation fulcrum O2 in the direction of the arrow B and the working unit 40. Also rotates in the direction of arrow B with the first rotation fulcrum O1 as the rotation center. Then, when the working part rotation support shaft 42 contacts the rear end of the first hole 55, the rotation of the rotation member 54 is restricted and stopped. At this time, when the extension movement of the telescopic cylinder 51 is stopped, as shown in FIG. 5 (plan view), the working unit 40 is located on the left side in the left-right direction of the traveling machine body 90, and the working direction of the working unit 40 is traveling. The backward movement of the airframe 90 results in a reverse direction in which reverse operation is possible. FIG. 5 shows a case where the working unit 40 is installed at the reverse operation position Pb where the reverse operation can be performed by the backward movement of the traveling machine body 90.

  Thus, as shown in FIG. 8 (b) again, when the working portion rotation support shaft 42 contacts the front end of the first hole 55, the working direction of the working portion 40 becomes the forward direction, and the first When the working portion rotating support shaft 42 comes into contact with the rear end portion of the hole 55, the working direction of the working portion 40 becomes the backward movement direction. Therefore, the telescopic cylinder 51 is expanded and contracted to move the working portion rotating support shaft 42. When contacting one of the end portions of the first hole portion 55, the working portion 40 can be set in the forward direction or the reverse direction. For this reason, the direction of the working unit 40 can be easily reversed from the forward direction to the reverse direction or from the reverse direction to the forward direction.

  Further, the second rotation fulcrum O2 that is the rotation fulcrum of the rotation member 54 is provided at a position away from the first rotation fulcrum O1 that is the rotation fulcrum of the working unit 40, and the rotation member is provided in the second hole 56. The working shaft 40 is inserted into the first hole 55 and the working support turning support 42 is inserted into the first hole 55, whereby the connecting portion 51 a of the telescopic cylinder 51 and the rotating member 54 is moved by the telescopic movement of the telescopic cylinder 51. Can be moved downstream in the rotational direction. For this reason, even when the rotation angle of the working unit 40 becomes a large angle exceeding 90 degrees, the rod side end portion of the telescopic cylinder 51 does not contact the working unit rotation support shaft 42, and the working unit 40 The telescopic cylinder 51 having a large stroke can be mounted on the motor, and as a result, the rotation angle range of the working unit 40 can be expanded.

  Now, as shown in FIG. 6 again, the offset mechanism section 20 is connected to a swing cylinder 29 that swings the offset mechanism section 20. The rod-side end of the swing cylinder 29 is connected to the third link member 27 via a power transmission member 30 connected between the main frame 13 and the third link member 27, and the bottom-side end of the swing cylinder 29. The part is pivotally connected to a support arm 12 '. The power transmission member 30 has one end pivotally connected to the main frame 13 and the other end pivotally connected to a guide shaft 28 protruding from the third link member 27. Therefore, the power transmission member 30 transmits the expansion / contraction motion of the swing cylinder 29 to the offset mechanism unit 20 to swing the offset mechanism unit 20.

  A guide groove 31 that engages with the guide shaft 28 is formed in the power transmission member 30. The guide groove 31 is a position where the offset mechanism unit 20 is moved by a predetermined offset movement amount in order to engage the passive clutches 6 and 7 provided in the working unit 40 with the drive side clutch 8 provided in the main frame 13. The engaging mechanism 31a and 31b and the passive clutches 6 and 7 are detached from the driving clutch 8 and moved backward to enable the working unit 40 to rotate. And a rotation groove 31c held at a position moved by the offset movement amount.

  For this reason, the passive clutches 6 and 7 can be engaged with the drive-side clutch 8 simply by expanding and contracting the swing cylinder 29 and engaging the guide shaft 28 with the engagement groove portions 31a and 31b or the rotation groove portion 31c. The working clutch 40 can be moved to a rotatable position by moving the passive clutches 6 and 7 away from the driving clutch 8. For this reason, while making the connection operation | work of a clutch and the operation | work which moves the working part 40 to the position which can be rotated, the effort which performs these operations can be reduced.

  Further, as shown in FIG. 9A (plan view), the support arm 12 ′ has a lock device 60 that fixes the working unit 40 to the mounting unit 10 in a state where the passive clutch 7 is engaged with the drive side clutch 8. Is provided. The lock device 60 is swingably connected to the support arm 12 ′ and can be engaged with locking members 61, 61 ′ provided in the working unit 40, the lock plate 62, the offset mechanism unit 20, And a connecting mechanism 64 that is pivotably connected to swing the lock plate 62 in conjunction with the left-right swinging of the offset mechanism unit 20.

  The locking member 61 is a rod-shaped member fixed to the tip of the arm member 35 protruding from the rear side surface of the transmission frame 41, and the locking member 61 ′ is an arm member protruding from the front side surface of the transmission frame 41. It is a rod-shaped member fixed to the tip of 35 ′. The locking member 61 is used when the working unit 40 is installed at a backward working position described later, and the locking member 61 ′ is used when the working unit 40 is installed at a forward working position described later. The lock plate 62 extends in the front-rear direction, an intermediate portion is pivotally connected to the side surface of the support arm 12 ′, and a hook-shaped hook portion 62 a that can be engaged with the locking member 61 is formed at the rear end portion of the lock plate 62. The front side of the plate 62 forms an arm portion 62b extending to the front side. The connection mechanism 64 includes a lock arm 65 that is rotatably attached to the support arm 12 ′ in front of the lock plate 62, and a rod 67 that is rotatably connected between the lock arm 65 and the power transmission member 30. It has. For this reason, when the offset mechanism portion 20 swings in the left-right direction, the lock arm 65 swings via the power transmission member 30 and the rod 67 to swing the lock plate 62.

  The lock arm 65 is formed with a rocking operation groove 66 for operating rocking of the lock plate 62 in conjunction with the horizontal rocking of the offset mechanism portion 20. A tip end portion of an arm portion 62b of the lock plate 62 is rotatably connected to the swing operation groove 66. For this reason, the lock plate 62 swings according to the position of the swing operation groove 66 by the tip of the arm portion 62 b moving in the swing operation groove 66 according to the swing of the lock arm 65. The swing operation groove 66 is formed in a curved shape in which the distance from the swing support point S of the lock arm 65 changes according to the front and rear positions of the lock arm 65. More specifically, the swinging operation groove 66 is located at a position where the working unit 40 can perform a smearing operation by the backward traveling of the traveling machine body in a state where the working direction of the working unit 40 is in the reverse direction (hereinafter referred to as “reverse working position Pb”). 9), or as shown in FIG. 9 (b), the working unit 40 is capable of performing the smearing operation by traveling forward with the traveling machine body in a state where the working direction of the working unit 40 is in the forward direction. (Hereinafter referred to as “advance work position Pm”), the lock plate 62 engages with the locking members 61 and 61 ′, and the passive clutches 6 and 7 are driven as shown in FIG. The lock plate 62 is formed so as to be detached from the locking members 61 and 61 ′ when the side clutch 8 is disengaged.

  Therefore, as shown in FIGS. 9A and 9B, when the offset mechanism 20 is swung left and right so that the working unit 40 is installed at the forward working position Pm and the backward working position Pb, When the portion 40 approaches these working positions, the latching portion 62a of the lock plate 62 swings in a direction to engage with the locking members 61, 61 ', and the working portion 40 is moved to the forward working position Pm and the backward working position Pb. When it reaches, the latching portion 62 a engages with the locking members 61, 61 ′, and the working portion 40 is locked to the mounting portion 10. For this reason, the lock operation of the working unit 40 can be automatically performed, and the labor required for the lock operation can be reduced.

  Further, in order to release the locked state from the state where the working unit 40 is locked to the mounting unit 10, the offset mechanism unit 20 is swung to the center side of the traveling machine body 90. When the offset mechanism portion 20 is swung, the lock arm 65 is swung so that the rear end side of the lock arm 65 moves to the support arm 12 ′ side via the rod 67, and the arm of the lock plate 62 is interlocked with this. The distal end of the portion 62b moves in the swing operation groove 66, and the lock plate 62 swings in a direction away from the locking members 61 and 61 ′. Therefore, the lock plate 62 is detached from the locking members 61 and 61 ', and the working unit 40 is unlocked.

  As described above, even when the working unit 40 is brought into the unlocked state, since the offset mechanism unit 20 is merely swung, the unlocking operation of the working unit 40 can be automatically performed. Can reduce the labor required.

  As described above, according to the plastering machine 1 which is an example of the offset working machine according to the present invention, the swinging cylinder 29 is expanded and contracted as described above to move the working unit 40 to a rotatable position. By extending and retracting the telescopic cylinder 51, the working unit 40 can be reversed from the forward direction to the reverse direction or from the reverse direction to the forward direction. Further, by extending and retracting the swing cylinder 29 from this state, the working clutch 40 can be installed at the forward working position Pm and the backward working position Pb by engaging the passive clutches 6 and 7 with the drive side clutch 8. . For this reason, in the plastering machine 1 according to the present invention, the reversing work of the working unit 40 is extremely easy, and the working efficiency of the entire offset work can be improved.

[Second Embodiment]
Next, a second embodiment of the offset working machine according to the present invention will be described. In the second embodiment, a ditcher that is an example of an offset working machine will be described. 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 FIG. 10 (plan view), the grooving machine 80 is provided with a working part 81 capable of grooving work on the base end side of the transmission frame 41 extending in a substantially horizontal direction. The working unit 81 includes a main body frame 82 that is attached to the lower part on the base end side of the transmission frame 41 and extends downward, and a rotatable grooved body 83 that is rotatably attached to the main body frame 82. Become. The grooving body 83 includes a rotary shaft (not shown) that is rotatable in the vertical direction and is formed on an outer surface of the rotary shaft (not shown). At the upper part of the working part 81, a soil discharge mechanism (not shown) for discharging the soil discharged by the spiral blade of the groove body 83 to the outside from the upper part of the groove body 83 is provided. The grooving body 83 is configured such that power is transmitted by a power transmission mechanism that is internally moved to the transmission frame 41.

  By providing the working portion 81 capable of such grooving work on the rear end side of the offset mechanism portion 20 via the transmission frame 41, the working portion 40 capable of the above-described glazing operation shown in FIG. The same effect as that provided by the frame 41 can be obtained. That is, the working unit 81 can be reversed from the forward direction to the reverse direction or from the reverse direction to the forward direction, and the swinging cylinder 29 shown in FIG. The working portion 81 can be installed at the forward working position Pm and the backward working position by engaging with the drive side clutch. For this reason, the reversing work of the working part 81 is extremely easy, and the ditching machine 80 capable of improving the working efficiency of the whole ditching work can be provided.

1 is a plan view of a glazing machine according to a first embodiment of the present invention. The rear side view of this glazing machine is shown. The left side view of this wrinkle coater is shown. The top view of a dregs coater when a working part exists in a rotatable position is shown. The top view of a hull coater when the operation part of a haze coater is installed in the reverse work position is shown. The top view of the rotation mechanism mounted in the glazing machine is shown. The top view of the rotation mechanism for demonstrating operation | movement of this rotation mechanism is shown. The top view of the rotation mechanism for demonstrating operation | movement of this rotation mechanism is shown. The top view of the locking device mounted in the glazing machine is shown. The top view of the ditcher concerning the 2nd Embodiment of this invention is shown.

1 Spider coater (offset work machine)
6 Front passive clutch (passive clutch)
7 Rear passive clutch (passive clutch)
8 Drive side clutch 10 Mounting portion 20 Offset mechanism portion 23 First link member 25 Second link member 29 Swing cylinder 30 Power transmission member 31 Guide groove 31a, 31b Engaging groove portion 31c Rotating groove portion 40, 81 Working portion 42 Working portion Rotating support shaft 45 Pre-processing section 47 Adjusting section 50 Rotating mechanism 51 Telescopic cylinder 51a Connecting portion 52 Rotating member supporting shaft 54 Rotating member 55 First hole (first guide section)
56 Second hole (second guide)
60 Locking device 61, 61 'Locking member 62 Lock plate (locking member)
64 coupling mechanism 80 ditcher (offset working machine)
83 Groove body (groove section)
90 traveling machine body O1 first rotation fulcrum O2 second rotation fulcrum

Claims (8)

A mounting portion to be mounted on the traveling machine body, an offset mechanism portion movable in the left-right direction from the mounting portion, and a first rotation fulcrum provided on the moving end side of the offset mechanism portion to rotate the first rotation fulcrum. The offset working machine is arranged so as to be pivotable in a horizontal direction as a moving center, and includes a forward movement, a backward movement of the traveling machine body, and a working unit that performs an offset work by power transmitted from the traveling machine body. And
A second rotation fulcrum provided between the offset mechanism part and the working part and provided at a position different from the first rotation fulcrum on the moving end side of the offset mechanism part is rotated about a rotation center. Rotation that is movable and can be rotated together with the working unit by the expansion and contraction movement of the telescopic cylinder to reverse the working direction of the working unit from the forward direction on one side of the left and right sides of the traveling machine body to the reverse direction on the other side. have a mechanism,
The rotation mechanism is disposed so as to be rotatable about the second rotation fulcrum as a rotation center, and is arranged to be coaxial with a rotation center passing through the first rotation fulcrum of the working unit. A rotating member having a first guide portion that passes through the moving support shaft and a second guide portion that passes through the rotating member support shaft, and is connected between the rotating member and the working portion. The telescopic cylinder,
By the expansion and contraction movement of the telescopic cylinder, the rotating member moves while the second guide portion changes the relative position with the rotating member support shaft, and the first guide portion moves with the working portion rotation support shaft. The second rotation fulcrum rotates about the second rotation fulcrum while moving the position of the expansion cylinder connected to the rotation member to the downstream side in the rotation direction of the working unit. In addition, the working unit rotates about the first rotation fulcrum as a rotation center . When the working part rotation support shaft comes into contact with one end of the first guide part of the turning member, the working direction of the working part becomes a forward direction on one of the left and right sides of the traveling machine body. The working direction of the working unit is the reverse direction of the other side of the left and right sides of the traveling machine body when the working unit pivot is in contact with the other end of the first guide unit. The offset working machine according to claim 1 . An oscillating cylinder connected to the offset mechanism part and moving the offset mechanism part by an expansion / contraction operation, and an expansion / contraction operation of the oscillating cylinder interposed between the oscillation cylinder and the offset mechanism part. offset working machine according to claim 1 or 2, characterized in that it has a power transmission member for transmitting the part. The power transmission member has a guide groove that engages with a guide shaft provided in the offset mechanism portion,
The guide groove is provided in the mounting portion, and engages a passive side clutch provided in the working portion with a drive side clutch that rotates by receiving power transmitted from the traveling machine body. In order to allow the working portion to rotate by detaching the passive side clutch from the drive side clutch and moving it to the rear side by holding the engagement groove portion that holds the position moved by a predetermined offset movement amount, The offset working machine according to claim 3 , further comprising a rotation groove portion that holds the offset mechanism portion at a position where the offset mechanism portion is moved by a predetermined offset movement amount. The mounting portion includes a lock member that is swingably disposed on the mounting portion and engageable with a locking member provided in the working portion, and a rotation member disposed between the lock member and the offset mechanism portion. A locking device comprising a coupling mechanism that is movably coupled and operates in conjunction with the movement of the offset mechanism unit to swing the locking member;
In the locking device, when the passive mechanism is engaged with the driving clutch by the movement of the offset mechanism, the locking member engages with the locking member, and the working portion becomes the mounting portion. In contrast, when the passive side clutch is in a state of being detached from the driving side clutch, the lock member is disengaged from the locking member and the working portion is unfixed with respect to the mounting portion. The offset working machine according to any one of claims 1 to 4 , wherein A first link member having one end side rotatably connected to the mounting portion and the other end side disposed on the moving end side of the offset mechanism portion, the first link member being rotatably connected to the frame; And a second link member arranged in parallel along the first link member and having one end side rotatably connected to the mounting portion and the other end side rotatably connected to the rear frame. The offset working machine according to any one of claims 1 to 5, wherein a link mechanism is formed. The offset working machine according to any one of claims 1 to 6 , wherein the working unit is a glazing working unit including a preprocessing unit and a trimming unit. The working section, offset working machine according to any of claims 1 to 6, characterized in that the grooving work unit provided with a grooving unit.

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