JP5162514B2 - Offset work machine - Google Patents

Description

  The present invention relates to an offset working machine that has a working unit that is attached to a traveling machine body and receives power from the traveling machine body and works at a position offset laterally with respect to a traveling position of the traveling machine body.

  Among such offset working machines, a plastering machine that performs a linear smearing operation along the outer edge of a rectangular field is equipped with a mounting part that is mounted on the rear part of the traveling machine body and has an input shaft, and an input shaft from the traveling machine body. And a working part that performs a smearing operation with the power transmitted to the base, and an offset mechanism part that is pivotally connected to the mounting part on the base end side and rotatably provided on the distal end side. However, when the tip of the traveling machine reaches the end of the field, it is no longer possible to perform the pasting operation, and the corner of the rectangular field The problem arises that an unworked part always remains in the part. Therefore, in order to solve this problem, the working unit is moved to the offset position on the opposite side to that during normal work, and the front-rear relation is reversed (reverse reversed), so that the traveling machine body with respect to the unworked portion at the corner. A wrinkle coater having a reversing reverse mechanism for performing work while reversing the movement has been developed (see Patent Document 1).

  In this wrinkle coater, a swing cylinder connected to the mounting portion and the offset mechanism portion is provided with an offset mechanism portion that constitutes a parallel link mechanism that is rotatably mounted in a mounting portion that is inserted into the traveling machine body. By the expansion and contraction, the offset mechanism part can be rotated in the left-right direction with respect to the traveling direction of the coater. A working part is rotatably provided on the tip side of the offset mechanism part via a frame part constituting a part of the working part. A connecting portion connected to a connecting arm portion constituting a part of the parallel link mechanism is rotatably provided at a lower end of the offset mechanism portion, and a rotating link mechanism is provided between the connecting portion and the frame portion. Yes. A telescoping cylinder is attached to the rotating link mechanism between the working part and the working part swings around the pivoting fulcrum of the frame part attached to the tip side of the offset mechanism part as the telescopic cylinder expands and contracts. Is possible.

  Therefore, as the swing cylinder expands and contracts, the working unit is movable to a forward working position that is offset to one side of the traveling machine body and capable of moving forward and a backward working position that is offset to the other side of the traveling machine body, Accompanying the expansion and contraction of the telescopic cylinder, it is possible to perform the work in the normal working direction where the traveling machine body can be moved forward by swinging around the rotation fulcrum with respect to the offset mechanism part or in the backward traveling body. It can be turned in the direction of reversal work. Further, when the offset mechanism portion is swung in the reversing work position while maintaining the direction of the working portion in the reversed state, the working portion is offset with respect to the traveling machine body, and the position of the working portion can be finely adjusted. .

JP 2005-143315 A

  However, this conventional coater requires an extension cylinder that swings the working part in addition to the swing cylinder that offsets the working part, which increases the cost.

  Therefore, the telescopic cylinder for swinging the working unit is eliminated, the working unit swings with the rotation of the offset mechanism unit, and the traveling unit body of the working unit is maintained at the reversing work position while maintaining the direction of the working unit in the reversing work. There is a demand for a wrinkle coater capable of adjusting the offset amount with respect to the above.

  The present invention has been made in view of such a background, and there is no telescopic cylinder that swings the working part. The working part swings as the offset mechanism turns, and the working part is reversed in direction. An object of the present invention is to provide an offset working machine capable of adjusting an offset amount of a working unit with respect to a traveling machine body at a reversing work position while maintaining the work.

In order to solve such a problem, the present invention provides a work position (for example, forward work in the embodiment) that is mounted on a traveling machine body and receives power from the traveling machine body and is offset to one side with respect to the traveling position of the traveling machine body. An offset working machine (for example, a varnishing machine 1 in the embodiment) having a position Pf) and a working part that works at a reversing work position offset to the other side with respect to the running position, and is mounted on the running machine body An offset mechanism that is supported between the mounting portion and the mounting portion so that the base end side is pivotally supported and the working portion is swingably supported on the distal end side. The offset mechanism is connected between the mounting portion and the offset mechanism portion. Telescopic actuator (for example, the swing cylinder 17 in the embodiment) that changes the rotation angle of the unit, and a reversing machine that can reverse the direction of the working unit in accordance with the rotation of the offset mechanism unit The reversing mechanism unit is a link that is part of the offset mechanism unit and that is connected between the rotating support arm and the working unit that faces a certain direction regardless of the rotation of the offset mechanism unit. A mechanism member, and a guide member that is attached to the offset mechanism unit and guides the movement of the joint provided in the link mechanism unit according to the rotation of the offset mechanism unit, and can reverse the direction of the working unit, The guide member can adjust the amount of offset of the working unit relative to the traveling position of the traveling machine body by guiding the movement of the joint in accordance with the rotation of the offset mechanism unit at the reversing working position while maintaining the direction of the working unit in the reversed state. Is a configuration requirement.

  The offset mechanism portion is rotatably supported with respect to the mounting portion and supports the working portion on the tip side so as to be swingable. Specifically, the offset mechanism portion is configured as a parallel link mechanism. . The offset mechanism is supported so as to be horizontally rotatable in the width direction with respect to the traveling direction.

  The expansion / contraction actuator rotates the offset mechanism, and rotates the offset mechanism by expanding and contracting. The telescopic actuator may be an electric motor including an electric hydraulic cylinder, a hydraulic cylinder, and an elastic member.

  The rotation support arm constitutes a part of the offset mechanism part. Specifically, when the offset mechanism part is configured as a parallel link mechanism, the rotation support arm is arranged on the distal end side of the parallel link mechanism. One end of the member is disposed coaxially with the rotation axis of the working unit so as to be rotatable (claim 2).

  The reversing mechanism unit includes a link mechanism unit and a guide member, and the link mechanism unit is connected between the rotation support arm and the working unit. Specifically, the link mechanism is a four-bar link. A joint is provided in the part which adjoins among the several link members which comprise this four-bar link. The joint is guided by a guide member (claim 2).

The guide member communicates with a reversing groove that guides the movement of the joint and reverses the direction of the working portion as the offset mechanism rotates in a direction in which the working portion approaches the reversing work position. The reversal is such that the working unit is offset with respect to the traveling position of the traveling body by guiding the movement of the joint as the offset mechanism unit rotates at the reversing working position while maintaining the orientation of the working unit in the reversing state. An offset groove is provided (claim 3).

The reversing groove reverses the direction of the working unit by operating the link mechanism unit by guiding the movement of the joint as the offset mechanism unit rotates. The reversing groove only needs to be able to reverse the direction of the working portion by guiding the movement of the joint , and may be linear, curved, or bent.

The reverse offset groove guides the movement of the joint with the rotation of the offset mechanism part at the reverse work position while maintaining the direction of the work part in the reverse state, and moves the work part relative to the travel position of the traveling machine body. Specifically, the reverse offset groove is configured to extend along an imaginary line having a predetermined radius with the swing center of the working unit relative to the offset mechanism as a fulcrum.

According to the offset working machine according to the present invention, the guide member of the reversing mechanism unit guides the movement of the joint in accordance with the rotation of the offset mechanism unit at the reversing work position while maintaining the direction of the working unit in the reversed state. The offset working machine can be adjusted with respect to the travel position of the traveling machine body, so that the offset working machine can be offset with respect to the traveling machine body while the working part moved to the reversing work position is maintained in the reversed state. It is possible to finely adjust the position of the working machine with respect to the rod even in the reverse working state.

The operation | movement explanatory drawing of the offset mechanism part and the inversion mechanism part which were provided in the plastering machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and the inversion mechanism part which were provided in the plastering machine concerning one embodiment of this invention is shown. The side view of the glazing machine concerning one embodiment of the present invention is shown. 1 is a plan view of a wrinkle coater according to an embodiment of the present invention. 1 is a perspective view of a glazing machine according to an embodiment of the present invention, in which FIG. 1 (a) is a perspective view of the glazing machine as seen from the left rear side of the glazing machine, and FIG. It is the perspective view of the haze coating machine seen from the diagonally left back of the coating machine. The partial enlarged schematic side view of the front end side of the offset flame | frame provided in the plastering machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part provided in the surface coating machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the inversion mechanism part provided in the glazing machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the inversion mechanism part provided in the glazing machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the link mechanism part provided in the drapery machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the locking device provided in the glazing machine concerning one embodiment of this invention is shown. The operation | movement explanatory drawing of the locking device provided in the glazing machine concerning one embodiment of this invention is shown.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a coater according to the present invention will be described below with reference to FIGS. In the present embodiment, a plastering machine that is an example of an offset working machine will be described. In addition, the offset working machine includes a ditching machine.

  As shown in FIG. 3 (side view) and FIG. 4 (plan view), the wrinkle coater 1 is connected to a three-point link connecting mechanism 91 provided at the rear part of the traveling machine body 90, so that the traveling machine body 90 moves forward and forward. It is intended to perform the haze painting work according to the reverse. This wrinkle coater 1 is mounted on a traveling machine body 90 and includes an attachment part 5 having an input shaft 8a to which power from the traveling machine body 90 is input, and provided in the attachment part 5 and rotated in the left-right direction with respect to the traveling direction. The offset mechanism unit 10 is movably supported, and the working unit 60 is disposed on the distal end side of the offset mechanism unit 10 so as to be swingable and performs an offset operation by power transmitted from the input shaft 8a. The

  The mounting portion 5 includes a hitch frame 6 extending in the vehicle body width direction, and a connection frame 7 provided in front of the hitch frame 6 and connected to a three-point link connection mechanism 91 provided in a rear portion of the traveling vehicle body 90. Composed. A gear box 8 is provided at the center lower portion of the hitch frame 6 in the width direction, and the above-described input shaft 8 a is provided in the gear box 8.

  The offset mechanism portion 10 has a base end side rotatably connected to the hitch frame 6 and extends rearward, and an offset frame 11 is juxtaposed along one side in the width direction of the offset frame 11, and the base end side is hitch. A link member 13 rotatably connected to one end of the frame 6, and a rotation support arm 15 rotatably connected between the front end side of the offset frame 11 and the front end side of the link member 13. It is configured.

  The offset frame 11 is a box-shaped member formed in a hollow shape, and is offset by expansion and contraction of a swing cylinder 17 connected between the front end side of the offset frame 11 and one end portion of the hitch frame 6. The frame 11 can swing in the left-right direction with respect to the traveling direction. A power transmission mechanism (not shown) is provided in the offset frame 11, and by this power transmission mechanism, the power transmitted from the traveling machine body 90 to the input shaft 8 a is rotatably disposed on the front end side of the offset frame 11. 12 can be transmitted.

  The distal end portion of the link member 13 is pivotally attached to one end of a pivot support arm 15 that is pivotally provided at the distal end portion of the offset frame 11. The pivot support arm 15 includes a parallel link frame portion 15a extending in the left-right direction with respect to the traveling direction, and a link arm portion 15b extending from the proximal end portion of the parallel link frame portion 15a toward the mounting portion 5 (FIG. 5A). )), And the base end side of the link arm portion 15b is rotatably attached to the lower end of the tip end side of the offset frame 11. The offset mechanism unit 10 configured as described above forms a parallel link mechanism by the offset frame 11, the link member 13, the hitch frame 6, and the rotation support arm 15.

  The swing cylinder 17 is an electric hydraulic cylinder, and expands and contracts in response to a control signal from a control device (not shown).

  As shown in FIG. 6 (partially enlarged schematic side view), a power transmission shaft 14 that is coaxially disposed and extends downward is coupled to the lower portion of the driven shaft 12 provided at the tip of the offset frame 11. Thus, the power transmission shaft 14 rotates as the driven shaft 12 rotates. A cylindrical connecting portion 18 disposed coaxially with the power transmission shaft 14 is attached to the lower end of the offset frame 11 so as to be rotatable with respect to the offset frame 11. The connecting portion 18 is not coupled to the power transmission shaft 14 and is rotatable about the power transmission shaft 14 as a rotation center. A base end portion of a transmission support case 61 that is a part of the working unit 60 is connected to the lower part of the connecting unit 18, and a transmission support frame 65 that is a part of the working unit 60 is connected to the upper part of the connecting unit 18. . For this reason, the working unit 60 can rotate with the central axis of the power transmission shaft 14 provided in the offset mechanism unit 10 as a rotation fulcrum O.

  In the transmission support case 61, as shown in FIG. 4, FIG. 5 (a), FIG. 5 (b), the upper part of the old ridge formed along the periphery of the field from the distal end side toward the proximal end side Are disposed, a pre-processing unit 64 for depositing the cut soil, and a trimming unit 66 for applying the piled soil on the cut old iron. A power transmission mechanism (not shown) is built in the transmission support case 61, and this power transmission mechanism can receive power from the driven shaft 12 and transmit power to the heaven processing unit 62, the preprocessing unit 64, and the trimming unit 66. It is configured.

  The celestial processing unit 62 includes a rotatable celestial processing rotor 62a. The celestial processing rotor 62a is connected to the front end side of the pre-processing portion 64 connected to the transmission support case 61 so as to be rotatable in the vertical direction via the celestial power transmission case 63, and via the transmission support frame 65. It is supported. A power transmission mechanism (not shown) is built in the heaven power transmission case 63 so that the power transmitted to the power transmission mechanism of the transmission support case 61 via this power transmission mechanism is transmitted to the heaven processing rotor 62a. It has become.

  The pre-processing unit 64 includes a rotatable tilling rotor 64a (see FIG. 3). Power is transmitted to the tilling rotor 64 a via a power transmission mechanism in the transmission support case 61, and the pretreatment unit 64 is connected to the transmission support case 61 and supported via a transmission support frame 65.

  The trimming portion 66 includes a polyhedral drum 66a that is rotatably supported by the transmission support case 61, and a cylindrical portion 66b that is attached to the right end portion of the polyhedral drum 66a and extends in the lateral direction. The trimming unit 66 is configured to transmit power through a power transmission mechanism in the transmission support case 61 and is supported by the transmission support case 61. For this reason, the working unit 60 can swing around the central axis of the power transmission shaft 14 (see FIG. 6) provided on the distal end side of the offset mechanism unit 10 via the connecting unit 18 as a rotation fulcrum O.

  A reversing mechanism unit 19 is provided between the connection support unit 18 connected to the transmission support case 61 that supports the heaven field processing unit 62 and the preprocessing unit 64 configured as described above and the rotation support arm 15. . The reversing mechanism 19 includes a link mechanism 20 and a guide member 30. As shown in FIG. 8A, the reversing mechanism unit 19 is configured so that the link mechanism unit 20 and the guide member 30 cooperate to direct the working unit 60 regardless of whether the offset mechanism unit 10 swings in the left-right direction. Is maintained constant, and the direction of the working unit 60 is reversed.

  The guide member 30 includes a first guide plate 30a extending along one side surface of the offset frame 11, a second guide plate 30b extending along the other side surface of the offset frame 11, and a proximal end side of the first guide plate 30a. The third guide plate 30c extending from the first guide plate 30a to the other side surface of the offset frame 11, and the fourth guide plate 30d connected between the first guide plate 30a and the end of the second guide plate 30b. . A reversal groove 31 is formed between the first guide plate 30a and the second guide plate 30b and extends linearly along the longitudinal direction of the offset frame 11 with a predetermined interval. Between the inner end face of the three guide plates 30c, a normal offset groove 33 that communicates with the reversal groove 31 and extends to the other side of the offset frame 11 and opens to the other side of the offset frame 11 is formed. A reverse offset groove 35 that communicates with the reverse groove 31 and extends to one side of the offset frame 11 is formed between the inner end face of 30a and the fourth guide plate 30d. These grooves 31, 33, and 35 have such a width that a joint 21 described later of the link mechanism unit 20 can move. The guide member 30 may be one in which these communicating grooves 31, 33, 35 are formed by a single member or a plurality of members as described above. Further, the guide member 30 may be provided on the upper surface of the offset frame 11 in addition to the lower surface of the offset frame 11 according to the attachment position of the link mechanism unit 20.

  The inversion groove 31 is formed in a straight line that connects the guidance start position Pa where the guidance of the movement of the joint 21 starts and the guidance end position Pe where the guidance of the movement of the joint 21 ends. Note that the inversion groove 31 may be curved or bent in the left-right direction with respect to an imaginary line connecting the guidance start position Pa and the guidance end position Pe.

  Normally, the offset groove 33 is formed as a curve or a straight line including a part of an arc whose radius is a distance from the rotation fulcrum O of the working unit 60 to the offset mechanism unit 10 to the guidance start position Pa.

  The reverse offset groove 35 is a circular arc whose radius is the distance from the rotation fulcrum O of the working unit 60 to the offset mechanism 10 to the guide end position Pe (that is, the center position of the joint 21 moved to the end of the reverse groove 31). It is formed as a curve or straight line including a part. The reverse offset groove 35 has a finite length from the guide end position Pe and extends to one side of the offset frame 11. The length of the reverse offset groove 35 is set according to the maximum swing angle of the offset mechanism unit 10 toward the reverse work position.

  As shown in FIG. 10A, the link mechanism unit 20 is a four-node link mechanism including four nodes, and has a predetermined distance described later from the rotation fulcrum O of the working unit 60 to the distal end side of the transmission support frame 65. The first link member 22 pivoted in the width direction of the machine body is defined as a second joint 20b, with the portion up to the position as the first joint 20a, the tip of the first joint 20a as a pivot fulcrum Q, One end side of the first link member 22 is pivotally connected to the distal end of the first link member 22 so that the second link member 23 is pivotable in the left-right direction. Is the third node 20c, and the link arm portion 15b of the rotation support arm 15 is the fourth node 20d. The length of the first joint 20a is determined by the distance between the pivot fulcrum O of the working unit 60 and the pivot fulcrum Q of the first joint 20a and the second joint 20b, and the rotation fulcrum Q, the second joint 20b and the second joint 20b. A value obtained by adding the distances to the rotation fulcrum S of the third node 20c is set to be larger than the distance between the rotation fulcrum O and the rotation fulcrum S.

  The first node 20a of the link mechanism unit 20 functions as a driven node, the second node 20b and the third node 20c function as an intermediate node, and the fourth node 20d functions as a driving node. The second node 20b is bent so as to protrude rightward in plan view and extends in the front-rear direction. The joint 21 serving as the pivot fulcrum S between the second joint 20b and the third joint 20c will be described further with reference to FIG. 8A. The transmission support frame 65 is pivoted by the locking device 40 described later. The rotation radius of the joint 21 that moves as the offset mechanism 10 swings in the locked state is set to be the same as the curvature radius of the normal offset groove 33. For this reason, when the offset mechanism 10 swings to the left while the transmission support frame 65 is locked to the rotation support arm 15, the joint 21 normally enters the offset groove 33 and moves along this groove. it can.

  Further, the joint 24 serving as the pivot fulcrum Q between the first joint 20a and the second joint 20b is moved to the left end of the normal offset groove 33, that is, the guidance start position Pa (FIG. 8C). )), And is disposed so as to be located on the right side with respect to an imaginary line connecting the center of the joint 21 and the rotation fulcrum O of the working unit 60. For this reason, in FIG.8 (c), the joint 21 moves to the rotation fulcrum O side of the working part 60 along the above-mentioned inversion groove 31, and the 1st link member 22 moves to the rotation fulcrum O side. Thus, a force directed toward the rotation fulcrum O is applied to the joint 24 to generate a moment for rotating the first joint 20a in the clockwise direction. Accordingly, the working unit 60 can be swung with respect to the offset mechanism unit 10 as shown in FIG.

  Further, the distance between the centers of the joints 21, 24 provided at both ends of the second joint 20 b is determined by the movement of the joint 24 provided on the first link member 22 toward the rotation fulcrum O of the working unit 60. It has the length necessary to invert 60. Therefore, as the joint 21 further moves along the reversing groove 31 toward the rotation fulcrum O, the second node 20b moves toward the rotation fulcrum O, and connects the first node 20a and the second node 20b. The first joint 20a can be rotated clockwise through 24 to move the working portion 60 to the reverse working position Pr shown in FIG. 9 (e). When the working unit 60 swings with respect to the offset mechanism unit 10, the locked state of the working unit 60 with respect to the offset mechanism unit 10 by the locking device 40 described later is released.

  As shown in FIGS. 10A and 11A, the locking device 40 is disposed on one side of the transmission support frame 65 and extends in the vertical direction, and the transmission support frame 65. The rear side lock pin 43 disposed on the other side of the front side and extending in the vertical direction, and the front side lock pin 42 or the rear side is rotatably attached to the distal end portion of the link arm portion 15b of the rotary support arm 15. A plate-like hook 45 that extends laterally so as to be able to be locked to the lock pin 43, a roller 47 that is provided on the hook 45 and is rotatably supported above the hook, and a roller 47 that is provided at the lower end of the tip of the offset frame 11. And a hook guide 49 indicated by oblique lines for guiding the rotation of the hook 45.

  The hook 45 is formed in a triangular shape in plan view, the top portion of the hook 45 is rotatably attached to the link arm portion 15 b, and the front side is locked to the front lock pin 42 at one end portion on the bottom side of the hook 45. An engagement portion 45 a is provided, a rear engagement portion 45 b that is engaged with the rear lock pin 43 is provided at the other end portion on the bottom side of the hook 45, and an upper portion is provided at the center portion on the bottom side of the hook 45. A protruding support pin is provided, and a roller 47 is rotatably supported on the upper end portion of the support pin. A tension spring 48 is attached to the hook 45, and the direction in which the front engagement portion 45 a is locked to the front lock pin 42 and the rear engagement portion 45 b is locked to the rear lock pin 43 by the tension spring 48. It is always energized in the direction of being.

  The hook guide 49 is formed in a substantially trapezoidal shape in a plan view, and the roller 47 rolls along a pair of side sides 49a and 49b formed on both sides and an upper side 49c connecting the tip portions of the side sides 49a and 49b. Move. Although details will be described later, when the roller 47 rolls on the one side 49a, the front engagement portion 45a is engaged with the front lock pin 42, and the roller 47 moves on the upper side 49c. When rolling, the lock state of the hook 45 is released, and when the roller 47 rolls on the other side 49b, the rear engagement portion 45b is engaged with the rear lock pin 43. It is in.

  When the offset mechanism unit 10 swings so that the rotation fulcrum O of the working unit 60 moves from the state of FIG. 11A to the left side in the body width direction, the roller 47 moves on one side of the hook guide 49. When the roller 47 moves along the side 49a toward the upper side 49c of the hook guide 49 (see FIG. 11 (b)) and moves over the upper side 49c of the hook guide 49, the hook 45 resists against the tension spring 48. By rotating clockwise, the hook 45 is disengaged from the front lock pin 42 (see FIG. 11 (c)), and as shown in FIGS. 11 (d) and 12 (e), the working unit 60 is As the offset mechanism 10 further swings in the direction of the reverse work position (arrow A direction), the head swings.

  FIG. 12E shows the state of the locking device 40 when the working unit 60 is moved to the reversing work position Pr and the direction thereof is reversed. FIG. 2E shows a structure obtained by adding a reversing mechanism 19 to the structure shown in FIG. As shown in FIG. 2 (e), when the joint 21 of the link mechanism unit 20 moves to the guide end position Pe of the reversing groove 31, the working unit 60 moves to the reversing working position Pr. Is in an unlocked state, so it cannot work in this state.

  Therefore, in order to lock the swing of the working unit 60 moved to the reversal work position Pr, the swing cylinder 17 is reduced from the state of FIG. 12E and the offset frame 11 is swung counterclockwise. When the offset frame 11 swings counterclockwise, the roller 47 moves to the bottom side of the hook guide 49 along the other side 49b of the hook guide 49 as shown in FIG. When the roller 47 moves along the side 49b, the hook 45 is rotated clockwise by the urging force of the tension spring 48, and the rear engagement portion 45b of the hook 45 is locked to the rear lock pin 43. The unit 60 is locked with respect to the offset mechanism unit 10.

  When the offset frame 11 further swings counterclockwise from the state of FIG. 12 (f), the roller 47 moves along the other side 49b of the hook guide 49 as shown in FIG. The hook 45 is maintained in a state of being locked to the rear lock pin 43 by the urging force of the tension spring 48. For this reason, the working unit is offset while the offset mechanism unit 10 is oscillated while the direction remains reversed.

  Next, the operation of the coater 1 when moving the working unit 60 of the coater 1 configured as described above from the forward work position to the reverse work position will be described. In the state where the working unit 60 has moved to the forward working position Pf, as shown in FIGS. 1A and 7A, the hook 45 is locked to the front lock pin 42, and the offset mechanism unit of the working unit 60. The head swing for 10 is locked. When the swing cylinder 17 is reduced in this state and the offset mechanism unit 10 swings to the left in the body width direction, the working unit 60 is moved forward as shown in FIGS. 1B and 8B. The joint 21 that is the pivotal fulcrum of the second joint 20b and the third joint 20c of the link mechanism 20 is normally opened in the offset groove 33 while moving in the center of the machine body width direction (offset movement) while being maintained in the direction. Move to the end side.

  Further, when the swing cylinder 17 is reduced and the offset mechanism unit 10 swings to the left in the body width direction, the joint 21 enters the normal offset groove 33 and reaches the guide start position Pa as shown in FIG. Moving. When the joint 21 moves to the guidance start position Pa, as shown in FIG. 11C, the roller 47 provided on the hook 45 moves on the upper side 49c of the hook guide 49, and the hook 45 rotates counterclockwise. Then, the hook 45 is detached from the front lock pin 42, and the locked state of the swinging of the working unit 60 with respect to the offset mechanism unit 10 is released.

  When the swing cylinder 17 further shrinks in this state and the offset mechanism section 10 swings to the left in the body width direction, as shown in FIGS. 1 (d), 7 (b), and 10 (b), the joint 21 Moves along the inversion groove 31 toward the rotation fulcrum O, and the second node 20b connected to the joint 21 moves toward the rotation fulcrum O, while the first node 20a connected to the second node 20b is moved to the working portion 60. The transmission support frame 65 is rotated clockwise about the rotation fulcrum O, and is rotated clockwise about the rotation fulcrum O. For this reason, the working unit 60 swings clockwise around the rotation fulcrum O.

  When the joint 21 moves to the guide end position Pe of the reversing groove 31, as shown in FIG. 2 (e), the working unit 60 moves to the reversing work position Pr and is in a reversed state in which the direction in the front-rear direction is reversed. At this time, the hook 45 remains in the non-locking state with the rear lock pin 43, and the swing of the working unit 60 is in the unlocked state.

  When the swing cylinder 17 is further reduced in this state, the joint 21 moves into the reverse offset groove 35 as shown in FIGS. 2 (f) and 9 (f). As the joint 21 moves into the reverse offset groove 35, the roller 47 moves along the side 49 b of the hook guide 49, and the hook 45 rotates clockwise by the urging force of the tension spring 48. Engaged with the rear lock pin 43, the working unit 60 is in a locked state. Accordingly, the working unit 60 is integrally connected to the rotation support arm 15 of the offset mechanism unit 10.

  When the swing cylinder 17 is further reduced in this state, the offset mechanism unit 10 is moved to the left in the body width direction as shown in FIGS. 2 (g), 7 (c), 9 (g), and 10 (c). While swinging, the joint 21 moves along the reverse offset groove 35 to the tip side of this groove. Accordingly, the working unit 60 is offset with respect to the traveling position of the traveling machine body 90 while being maintained in the inverted state.

Thus, by providing the reverse offset groove 35 in the guide member 30 of the reverse mechanism portion 19, when the offset mechanism portion 10 swings while the orientation of the working portion 60 is maintained in the reverse state, the joint 21 is turned into the reverse offset groove. It is possible to adjust the offset amount with respect to the travel position of the traveling machine body 90 while the work unit 60 moved to the reversal work position Pr is maintained in the reverse state while moving in the reversal work position Pr. The position of 60 can be finely adjusted.

  In the above-described embodiment, the description has been made by taking the glazing machine 1 as an example of the offset working machine. However, even in the case of the trench digging machine, the configuration of the glazing machine 1 can be configured similarly to the case of the glazing machine 1. It is possible to obtain the same effect as the case, that is, the effect that the offset can be moved while the working part moved to the reversing work position remains in the reversing state.

1 Spider coater (offset work machine)
5 Mounting part 10 Offset mechanism part 15 Rotating support arm 17 Swing cylinder
DESCRIPTION OF SYMBOLS 19 Reverse mechanism part 20 Link mechanism part 21 Joint 30 Guide member 31 Reverse groove 35 Reverse offset groove 60 Working part 90 Traveling machine body Pf Advance work position (work position)
Pr reverse working position

Claims (3)

Work that is mounted on a traveling machine body, receives power from the traveling machine body, and works at a work position that is offset to one side with respect to the traveling position of the traveling machine body, and a reverse work position that is offset to the other side with respect to the traveling position. An offset working machine having a section,
An offset mechanism unit that is rotatably supported on the base end side with respect to the mounting unit that is mounted on the traveling machine body, and that supports the working unit on the tip side so as to be able to swing.
A telescopic actuator connected between the mounting portion and the offset mechanism portion, and changing a rotation angle of the offset mechanism portion with respect to the mounting portion;
A reversing mechanism unit capable of reversing the direction of the working unit according to the rotation of the offset mechanism unit;
The reversing mechanism part is a link mechanism that is connected between the working support part and a rotating support arm that constitutes a part of the offset mechanism part and faces a fixed direction regardless of the rotation of the offset mechanism part. And a guide member attached to the offset mechanism unit and capable of reversing the direction of the working unit by guiding the movement of the joint provided in the link mechanism unit according to the rotation of the offset mechanism unit. And
The guide member guides the movement of the joint in accordance with the rotation of the offset mechanism unit in the reverse operation position while maintaining the direction of the work unit in the reverse state, and the travel position of the traveling machine body of the work unit. Offset work machine characterized by being able to adjust the amount of offset with respect to. The offset mechanism is configured as a parallel link mechanism,
The rotation support arm is arranged such that one end side thereof is rotatable coaxially with the rotation axis of the working unit and forms a part of the offset mechanism unit,
The link mechanism is a four-bar link provided between the rotation support arm and the working unit,
The offset working machine according to claim 1, wherein a joint provided in a part of the four-bar link is guided by the guide member. The guide member has a reversing groove for guiding the movement of the joint and reversing the direction of the working part as the offset mechanism part rotates in a direction in which the working part approaches the reversing work position. The working portion is guided by the movement of the joint as the offset mechanism is rotated at the reversing work position while maintaining the direction of the working portion in the reversing state in communication with the reversing groove. The offset working machine according to claim 1, further comprising a reverse offset groove that is offset with respect to the travel position.

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