JP5260393B2 - Offset work machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an offset working machine which is free from an expansion cylinder for swinging a working portion, locks the swinging of the working portion in a state directing the working portion in a forward traveling direction with the oscillation of an offset mechanism portion, swings and reverses the working portion with the oscillation of the offset mechanism portion, and can lock the swinging of the working portion in a state that the working portion is directed in a reverse work direction. <P>SOLUTION: A levee-plasticizing machine in the offset working machine includes: an offset mechanism portion 10 which is swingably supported on a mounting portion 5 mounted on a travel machine frame and on whose tip side a working portion 60 is swingably supported; a swinging cylinder for swinging the offset mechanism portion; a reversing mechanism portion which can reverse the direction of the working portion 60 in response to the swinging of the offset mechanism portion 10; and a working portion rotation-locking device 40 which can lock the swinging of the working portion 60 directed in the forward traveling direction or the reverse work direction of the working portion 60. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

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 that can swing the working part on the tip 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 coater, an offset mechanism part that constitutes a parallel link mechanism is provided on a mounting part that is mounted on a traveling machine body so as to be swingable in a horizontal direction, and a revolving cylinder connected to the mounting part and the offset mechanism part is expanded and contracted. Thus, the offset mechanism can swing 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.

  Further, the working unit is swung with respect to the offset mechanism unit with the working unit facing the forward working direction or the reverse working direction between the tip of the offset mechanism unit and the frame constituting a part of the working unit. A locking device that can be locked and unlocked is provided.

  Therefore, if the working unit is locked with respect to the offset mechanism unit by the locking device and the offset mechanism unit is swung in a state where the working unit is directed in the forward working direction or the reverse working direction, the working unit is maintained while maintaining the orientation of the working unit. It can be moved in the forward working position or the reverse working direction.

JP 2005-143315 A (paragraphs 0054-0061, FIGS. 4-6, FIG. 9)

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

  Therefore, the telescopic cylinder that swings the working part is eliminated, and the swinging of the working part is locked to the offset mechanism part while the working part is directed in the forward working direction as the offset mechanism part swings, and the offset is offset. A wrinkle coater that can lock the rotation of the working unit with respect to the offset mechanism unit in a state where the working unit swings and reverses as the mechanism swings and the working unit faces in the reverse working direction is desired. ing.

  The present invention has been made in view of such a demand, and there is no telescopic cylinder for swinging the working portion, and the offset mechanism is in a state where the working portion is directed in the forward working direction as the offset mechanism portion swings. Locks the swinging of the working part with respect to the part, and the working part swings and reverses as the offset mechanism swings, and the working part faces the reversing work direction with respect to the offset mechanism part. An object of the present invention is to provide an offset working machine capable of locking the swing of the working unit.

  In order to solve such a problem, the present invention provides a forward work position that is attached to a traveling machine body, receives power from the traveling machine body, and is offset to one side with respect to the traveling position of the traveling machine body, and the traveling position. An offset working machine (for example, a coater 1 in the embodiment) having a working part that works at a reversing work position that is offset to the other side with respect to a mounting part that is attached to the traveling machine body The offset mechanism unit is supported between the mounting unit and the offset mechanism unit, and is supported between the mounting unit and the offset mechanism unit. The telescopic actuator (for example, the swing cylinder 17 in the embodiment) that changes the rotation angle and the direction of the working unit according to the rotation of the offset mechanism unit at the forward working position. A reversing mechanism that is reversible between a forward working direction in which work can be performed and a reversing work direction in which work can be performed at the reversing work position, and the reversing mechanism constitutes a part of the offset mechanism. A link mechanism unit connected between a rotation support arm that faces a fixed direction regardless of the rotation of the offset mechanism unit and the working unit, and the rotation of the offset mechanism unit attached to the offset mechanism unit And a guide member capable of reversing the direction of the working part by guiding the movement of the joint provided in the link mechanism part according to the rotation of the offset mechanism part. When the head is moved from the guidance start position provided at one end of the head to the forward work position, the swinging of the working part directed toward the forward working direction with respect to the offset mechanism part is locked, and the offset mechanism part is rotated. Thus, when the joint is guided along the guide member, the swinging lock of the working part is released, and the joint of the guide member is moved along with the rotation of the offset mechanism part to the reverse working position side. And having a working part rotation locking device that locks the swinging of the working part directed to the reverse working direction with respect to the offset mechanism part when moving from the guidance end position provided on the other end side to the reverse working position side. To do.

  The offset mechanism unit is rotatably supported with respect to the mounting unit, and supports the working unit on the tip side so as to be able to swing, and is specifically 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 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. This joint is guided by a guide member.

  Specifically, the guide member is a reversing groove that guides the movement of the join and reverses 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 side, The working portion that communicates with the reversing groove and that faces the reversing work direction has a reversing lock groove that locks the swing of the working portion with respect to the offset mechanism portion. In addition, when offset movement is required at the reverse work position, the reverse offset that moves the work part offset relative to the travel position of the traveling machine body by guiding the movement of the join as the offset mechanism rotates. A groove is provided.

  The reversing groove reverses the direction of the working portion by guiding the movement of the join and operating the link mechanism portion as the offset mechanism portion rotates. The reversing groove only needs to be capable of reversing the direction of the working portion by guiding the movement of the join, and may be any of a straight shape, a curved shape, and a bent shape.

  The working part rotation lock device locks the swing of the working part relative to the offset mechanism part so that the working part is maintained in the forward working direction, and maintains the working part in the reverse working direction. As described above, the swinging of the working unit relative to the offset mechanism unit is locked. Specifically, when the joint moves from the guide start position provided on one end side of the guide member to the forward work position side as the offset mechanism swings, the forward work direction is such that the work can be performed at the forward work position. Locks the swinging of the working part facing the offset mechanism part and releases the swinging lock of the working part when the joint is guided along the guide member as the offset mechanism part swings. A working part facing the reversing work direction that can work at the reversing work position when the joint moves from the guide end position provided on the other end side of the guide member to the reversing work position side with the swing to the reversing work position side. The swinging of the offset mechanism with respect to the offset mechanism is locked.

  More specifically, the working part rotation lock device is provided rotatably on the forward side lock pin and the reverse side lock pin protruding from the working part, and on the rotation support arm, and the joint starts guiding the guide member. The forward-side engaging member that can be locked to the forward-side lock pin at the distal end when in the position, and the reverse side that can be locked to the reverse-side lock pin at the distal end when the joint is at the guide end position of the guide member A hook provided with an engagement member is provided at the tip of the offset mechanism, contacts a contact member provided on the hook, and the hook is rotated by guiding the movement of the contact member as the offset mechanism rotates. When the joint is at the guide start position of the guide member, the hook rotates as the offset mechanism swings toward the reverse operation position, and the forward engagement member is locked by the forward lock pin. State When the joint is at the guide end position of the guide member, the hook is rotated as the offset mechanism section is rotated toward the forward operation position, and the reverse engagement member is locked to the reverse lock pin. And a rotation unlocking member (for example, hook guides 49 and 55 in the embodiment) for releasing the closed state.

  The hook provided with the advancing side engaging member and the reversing side engaging member is configured such that the hook including the advancing side engaging member and the hook including the reversing side engaging member are separately configured and integrally coupled, or one member. Alternatively, the forward side engaging member and the reverse side engaging member may be configured.

  The contact member provided on the hook rotates the hook in accordance with the rotation of the offset mechanism while contacting the rotation lock release member, and the forward-side engagement member and the forward-side lock pin are locked or not. The locked state is set, and the reverse side engaging member and the reverse side lock pin are set to the locked state or the non-locked state. The contact member only needs to be able to contact the rotation lock release member, and specifically, is a rotating body such as a roller.

  The forward lock pin and the distal end of the forward engagement member are arranged at positions where the joint is locked when the joint is at the guide start position of the guide member, and the reverse lock pin and the distal end of the reverse engagement member are When the joint is located at the guide end position of the guide member, the joint is disposed at a position where the joint is locked with each other (claim 3).

  According to the offset working machine according to the present invention, the offset working unit includes the offset mechanism unit, the telescopic actuator, and the reversing mechanism unit. The reversing mechanism unit includes the link mechanism unit and the guide member, and the forward working direction as the offset mechanism unit rotates. Locks the swinging of the working part facing the offset mechanism part, releases the swinging lock of the working part as the offset mechanism part turns, and turns the offset mechanism part toward the reverse working position side By having a working part rotation lock device that locks the swinging of the working part facing the reversing work direction with respect to the offset mechanism part, there is no telescopic cylinder that swings the working part, and work is performed as the offset mechanism part swings. The head swings with respect to the offset mechanism with the head facing in the forward working direction, and the head swings and reverses as the offset mechanism swings. The working unit can be provided lockable offset working machine swiveling of the working unit relative to the offset mechanism in a state facing the inverted working direction. Therefore, it is possible to convert from the work at the forward work position to the work at the reverse work position only with the extension actuator for rotating the offset mechanism, and by locking the swing of the work part at each work position, The load on the machine is also reduced and stable work can be performed.

The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the plastering machine concerning the 1st Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the plastering machine concerning the 1st Embodiment of this invention is shown. 1 shows a side view of a coater according to a first embodiment of the present invention. 1 is a plan view of a glazing machine according to a first embodiment of the present invention. 1 is a perspective view of a glazing machine according to a first 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. FIG. 2 is a perspective view of the glazing machine as seen from the diagonally left rear of the glazing machine. The partial expansion schematic side view of the front end side of the offset flame | frame provided in the plastering machine concerning the 1st Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part provided in the drapery machine concerning the 1st Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part provided in the drapery machine concerning the 1st Embodiment of this invention is shown. The operation | movement explanatory drawing of the reversing | reversing mechanism part and working part rotation lock apparatus which were provided in the plastering machine concerning the 1st Embodiment of this invention is shown. The operation | movement explanatory drawing of the reversing | reversing mechanism part and working part rotation lock apparatus which were provided in the plastering machine concerning the 1st Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the dregs coater concerning the 2nd Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the dregs coater concerning the 2nd Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the dregs coater concerning the 2nd Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part provided in the surface coating machine concerning the 2nd Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the dregs coater concerning the 2nd Embodiment of this invention is shown. The operation | movement explanatory drawing of the offset mechanism part and working part rotation lock apparatus which were provided in the dregs coater concerning the 2nd 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.

[First embodiment]
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.

  As shown in FIGS. 4, 5 (a), and 5 (b), the transmission support case 61 has a top field process that cuts off the upper part of the old ridge formed along the periphery of the field at the tip side. A section 62 and a pre-processing section 64 for depositing the cut soil are arranged, and a trimming section 66 for applying the piled soil on the cut old hammer is arranged on the base end side of the transmission support case 61. Has been. 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 portion of the preprocessing 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. 7A, 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. 3 is formed between the inner end face of the guide plate 30c and a forward offset groove 33 that communicates with the reversal groove 31 and extends toward the forward work position of the offset frame 11 and opens toward the forward work position of the offset frame 11, A reversal lock groove 35 is formed on the reversal work position side of the offset frame 11 so as to communicate with the reversal groove 31 between the inner end surfaces of the first guide plate 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.

  The forward 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 guide start position Pa with respect to the offset mechanism unit 10.

  The reverse lock groove 35 is a circular arc whose radius is a 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 lock groove 35 has a finite length from the guide end position Pe and extends to the reverse work position side of the offset frame 11. Is set to a length that enables the swing of the head to be locked.

  The link mechanism unit 20 is a four-node link mechanism including four nodes, and a portion from a rotation fulcrum O of the working unit 60 to a position having a predetermined distance, which will be described later, toward the distal end side of the transmission support frame 65 is a first node. 20a, the first link member 22 pivoted in the width direction of the machine body with the distal end of the first joint 20a as a pivot fulcrum Q is referred to as a second joint 20b, and one end is attached to the distal end of the first link member 22. The second link member 23 whose side is pivoted and freely pivotable in the left-right direction and whose other end is pivotally connected to the distal end of the link arm portion 15b of the pivot support arm 15 is referred to as a third joint 20c. The link arm portion 15b of the arm 15 is configured as a 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 rotation fulcrum S of the second joint 20b and the third joint 20c will be described with further addition of FIG. 7B. The transmission support frame 65 is rotated by the working part rotation lock device 40 described later. The rotation radius of the joint 21 that moves as the offset mechanism portion 10 swings while being locked to the dynamic support arm 15 is arranged so that the radius of curvature of the advance offset groove 33 is the same. 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 can enter the forward offset groove 33 and move 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 moves when the joint 21 described above moves to the left end of the advance offset groove 33, that is, the guidance start position Pa (FIG. 7B). )), 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. Therefore, the working unit 60 can be swung with respect to the offset mechanism unit 10.

  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 unit 60 to the reverse working position Pr shown in FIG. When the working unit 60 swings with respect to the offset mechanism unit 10, the working unit 60 is unlocked from the offset mechanism unit 10 by the working unit rotation lock device 40 described later.

  As shown in FIGS. 7 (a) and 7 (b), the working unit rotation locking device 40 is disposed on one side of the transmission support frame 65 and extends in the vertical direction. The reversing side lock pin 43 which is disposed on the other side of the transmission support frame 65 and extends in the up-down direction and is attached to the distal end portion of the link arm portion 15b of the rotation support arm 15 so as to be freely rotatable. A plate-like hook 45 extending in the lateral direction so as to be engageable with the lock pin 42 or the reverse-side lock pin 43, a roller 47 provided on the hook 45 and rotatably supported above the hook, and a lower end of the tip of the offset frame 11 And a hook guide 49 attached to one end of the guide member 30 attached to the guide member 30 and contacting the roller 47 to guide the rotation of the hook 45.

  The hook 45 is formed in a triangular shape in plan view, and has a forward side engaging member 45a extending from the top of the hook 45 to one side and a reverse side engaging member 45b extending from the top of the hook 45 to the other side. Is pivotally attached to the link arm portion 15b. A forward-side engaging portion 45a1 is provided at the distal end of the forward-side engaging member 45a. The forward-side engaging member 45a1 is engaged with the reverse-side lock pin 43 at the distal end of the reverse-side engaging member 45b. A reversing side engaging portion 45b1 is provided. A support pin protruding upward is provided at the center of the bottom side of the hook 45, and a roller 47 is rotatably supported on the upper end of the support pin. A tension spring 48 is attached to the hook 45 (see FIG. 1A), and the direction in which the advance side engagement member 45a is locked to the advance side lock pin 42 by the tension spring 48 and the reverse side engagement member. 45b is always urged in the direction in which it is engaged with the reverse-side lock pin 43.

  The hook guide 49 is formed in a bow shape that is curved in a plan view, and a guide surface 49a that is curved on the front side is formed. A protruding step portion 49b is provided on one side of the guide surface 49a. The roller 47 rolls on the guide surface 49a. Although details will be described later, when the roller 47 rolls on the step portion 49b, the state where the forward side engagement member 45a is locked to the forward side lock pin 42 is released, and the roller 47 is one side than the step portion 49b. When rolling on the guide surface 49a on the side, the state where the forward side engagement member 45a is released from the forward side lock pin 42 is maintained, and the roller 47 is released from one side of the guide surface 49a. Then, when the forward side engagement member 45a is engaged with the forward side lock pin 42 and the roller 47 is disengaged from the other side of the guide surface 49a, the reverse side engagement member 45b is turned into the reverse side lock pin. 43 is locked.

  When the offset mechanism unit 10 swings so that the rotation fulcrum O of the working unit 60 moves from the state of FIG. 7B to the right side in the body width direction, the working unit rotation locking device 40 causes the roller 47 to move to the hook guide 49. Of the guide surface 49a, the hook 45 is rotated clockwise by the tension spring 48, and the forward engagement member 45a is engaged with the forward lock pin 42. The working unit 60 is in a state in which the swing is locked with respect to the offset mechanism unit 10 in a state where the working unit 60 faces the forward working direction. When the offset mechanism unit 10 is further swung to the right in the body width direction in this state, the working unit 60 can be offset while being directed in the forward working direction (see FIG. 7A).

  When the offset mechanism 10 is swung to the left in the body width direction from the state shown in FIG. 7B, the roller 47 moves on the guide surface 49 a of the hook guide 49 to the other end side, and the tension spring 48 Accordingly, the hook 45 is maintained in a state of being rotated counterclockwise, and the hook 45 is maintained in a state of being detached from the forward lock pin 42. For this reason, as shown in FIG. 8C, the working unit 60 swings as the offset mechanism unit 10 swings in the reverse working position side direction (arrow A direction).

  Then, when the joint 21 of the link mechanism portion 20 moves to the guide end position Pe of the reversing groove 31 and further the joint 21 moves to the reversing lock groove 35, as shown in FIG. And the hook 45 is free, and is rotated clockwise by the tension spring 48 (see FIG. 1A) so that the reversing side engaging member 45b is disengaged from the other end of the guide surface 49a. The reverse side lock pin 43 is engaged. For this reason, the working unit 60 is locked with respect to the offset mechanism unit 10 in a state in which the working unit 60 faces in the reverse working direction.

  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 work position Pf, as shown in FIGS. 1A, 7A, and 9A, the hook 45 is locked to the forward lock pin 42, The swing of the working unit 60 with respect to the offset mechanism unit 10 is locked. When the swing cylinder 17 is reduced in this state and the offset mechanism section 10 swings to the left in the body width direction, the working section 60 moves toward the center in the body width direction while maintaining its direction in the forward work direction (offset). The joint 21 which is the pivot point of the second joint 20b and the third joint 20c of the link mechanism 20 moves to the opening end side of the forward offset groove 33.

  Further, when the swing cylinder 17 is contracted and the offset mechanism unit 10 swings to the left in the body width direction, the joint 21 enters the forward offset groove 33 as shown in FIGS. 7B and 9B. To move to the guidance start position Pa. When the joint 21 moves to the guidance start position Pa, a further explanation will be given with reference to FIG. 1B. The roller 47 provided on the hook 45 moves to the stepped portion 49b on the guide surface 49a of the hook guide 49 and hooks. 45 rotates counterclockwise, the hook 45 is disengaged from the forward lock pin 42, and the swinging state of the working unit 60 relative to the offset mechanism unit 10 is released.

  When the swing cylinder 17 further shrinks in this state and the offset mechanism 10 swings to the left in the body width direction, as shown in FIGS. 2 (c), 8 (c), and 10 (c), 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 guidance end position Pe of the reversing groove 31, the working unit 60 moves to the reversing work position Pr and enters a reversing state in which the front-rear direction is reversed. At this time, the hook 45 remains in the non-locking state with the reverse side lock pin 43, and the swing of the working unit 60 is in the unlocked state.

  When the swing cylinder 17 further shrinks in this state, the joint 21 moves into the reverse lock groove 35 as shown in FIGS. 2 (d), 8 (d), and 10 (d). As the joint 21 moves into the reverse lock groove 35, the roller 47 is disengaged from the hook guide 49, and the hook 45 is rotated clockwise by the urging force of the tension spring 48, so that the hook 45 is locked on the reverse side. Engaged with the pin 43, the working unit 60 is in a locked state. Therefore, the working unit 60 is locked with respect to the offset mechanism unit 10.

  Thus, by providing the reversal lock groove 35 in the guide member 30 of the reversing mechanism unit 19, the working unit 60 can be operated with respect to the offset mechanism unit 10 in the reversing working state with the working unit 60 facing in the reversing working direction. Since the swing of 60 can be locked, it is possible to convert from the work at the forward work position Pf to the work at the reverse work position Pr only by the swing cylinder 17 for rotating the offset mechanism section. By locking the swing of the working unit 60, the load on the swing cylinder 17 is reduced, and stable work can be performed.

[Second Embodiment]
In the first embodiment described above, when the joint 21 moves to the guide end position Pe of the guide member 30 and the offset mechanism unit 10 slightly swings, the swing of the working unit 60 is locked and the reverse working position is reached. Although the case where the working unit 60 is maintained in the reversed state in Pr is shown, the guide member 30 and the working unit rotation locking device 40 are configured so that the offset movement can be performed while the swinging of the working unit 60 is locked in the reversed working position Pr. May be configured. In the second embodiment, only differences from the first embodiment described above 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. 11A, the guide member 30 communicates with the inversion groove 31 between the inner end surfaces of the first guide plate 30a and the fourth guide plate 30d, and is on the inversion work position side of the offset frame 11. A reverse offset groove 36 extending in the direction is formed. The groove 36 has a width that allows the joint 21 of the link mechanism 20 to move.

  The reverse offset groove 36 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 36 has a finite length from the guide end position Pe and extends to the reverse work position side of the offset frame 11. The length of the reverse offset groove 36 is set according to the maximum swing angle of the offset mechanism unit 10 toward the reverse work position. It should be noted that the reverse offset groove may be opened to the reverse work position side of the offset frame 11 without having a finite length.

  As shown in FIGS. 14 (a) and 15 (a), the working unit rotation lock device 40 is rotatably attached to the tip end portion of the link arm portion 15b of the rotation support arm 15, and is moved forward. 42 or a plate-like hook 52 extending laterally so as to be able to be locked to the reverse side lock pin 43, a roller 47 provided on the hook 52, and provided at a lower end of the tip of the offset frame 11. And a hook guide 54 indicated by oblique lines for guiding the rotation of 52.

  The hook 52 is formed in a triangular shape in plan view, and the top portion of the hook 52 is rotatably attached to the link arm portion 15b. The forward side engaging member 52a extending from the top portion of the hook 52 to one side, and the top portion of the hook 52 It has the reverse side engaging member 52b extended from the other side. The forward side engaging member 52a is provided with a forward side engaging portion 52a1 that is locked to the forward side lock pin 42, and the forward side engaging member 52b is locked to the reverse side lock pin 43. A reversing side engaging portion 52b1 is provided, and a support pin protruding upward is provided at the center portion on the bottom side of the hook 52, and the roller 47 is rotatably supported on the upper end portion of the support pin. Further, a tension spring 48 is attached to the hook 52, and the direction in which the forward side engaging portion 52 a 1 is locked to the forward side lock pin 42 by the tension spring 48 and the reverse side engaging portion 52 b 1 to the reverse side lock pin 43. Always energized in the direction of locking.

  The hook guide 55 is formed in a substantially trapezoidal shape in a plan view, and the roller 47 rolls along a pair of side sides 55a and 55b formed on both sides and an upper side 55c connecting the tip portions of the side sides 55a and 55b. Move. As will be described in detail later, when the roller 47 rolls on one side 55a, the forward side engaging portion 52a1 is in a state of being locked to the forward side lock pin 42, and the roller 47 is in the upper side 55c. When rolling up, the locked state of the hook 52 is released, and when the roller 47 rolls on the other side 55b, the reversing side engaging portion 52b1 is locked to the reversing side lock pin 43. It is in the state.

  When the offset mechanism unit 10 swings so that the rotation fulcrum O of the working unit 60 moves from the state shown in FIG. When the roller 47 moves onto the upper side 55c of the hook guide 55 along the one side 55a of the hook guide 55 (see FIG. 15 (b)), the tension guide 48 resists the tension spring 48. The hook 52 is rotated counterclockwise so that the hook 52 is disengaged from the forward-side lock pin 42 (see FIG. 15C), and the offset mechanism portion 10 is further turned in the direction of the reverse operation position (direction of arrow A). The working unit 60 swings as it swings (see FIGS. 15D and 16E).

  FIG. 16E shows a state of the working unit rotation lock device 40 when the working unit 60 is moved to the reversing work position Pr and the direction thereof is reversed. FIG. 12 (e) shows the structure shown in FIG. 16 (e) with the addition of a reversing mechanism 19, and FIG. 13 (a) shows the swing of the structure shown in FIG. 12 (e). A cylinder 17 is added. As shown in FIGS. 12 (e) and 13 (a), when the joint 21 of the link mechanism 20 moves to the guide end position Pe of the reversing groove 31, the working unit 60 moves to the reversing working position Pr. Since the swing of the working unit 60 is in an unlocked state, stable work cannot be performed 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 along the other side 55b of the hook guide 55 as shown in FIGS. 12 (f) and 13 (b). Move to. When the roller 47 moves along the side 55b, as shown in FIG. 16 (f), the hook 52 rotates clockwise by the urging force of the tension spring 48, and the reverse side engaging portion 52b1 of the hook 52 reverses. The working portion 60 is locked to the offset mechanism portion 10 by being locked by the side lock pin 43.

  When the offset frame 11 further swings counterclockwise from the state of FIG. 12 (f), the roller 47 moves along the other side 55b of the hook guide 55, as shown in FIG. The hook 52 is maintained in a state of being locked to the reverse side 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. 11A, 14A, and 15A, the hook 52 is locked to the forward-side lock pin 42, The swing of the working unit 60 with respect to the offset mechanism unit 10 is locked. In this state, when the swing cylinder 17 (see FIG. 1A) is reduced and the offset mechanism unit 10 swings to the left in the body width direction, FIGS. 11B, 14B, and 15B are used. As shown in FIG. 2, the working unit 60 moves (offsets) toward the center in the width direction of the machine body while maintaining its direction in the forward working direction, and the second joint 20b and the third joint 20c of the link mechanism 20 are provided. The joint 21 that is a pivotal fulcrum moves to the opening end side of the forward offset groove 33.

  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 forward 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. 15C, the roller 47 provided on the hook 52 moves on the upper side 55c of the hook guide 55, and the hook 52 rotates counterclockwise. Then, the hook 52 is detached from the forward lock pin 42, and the swinging state 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 unit 10 swings to the left in the body width direction, as shown in FIGS. 11 (d), 14 (b), and 15 (d), 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 FIGS. 12 (e), 13 (a), and 16 (e), the working unit 60 moves to the reversing work position Pr and moves back and forth. It will be in the inverted state where the direction of the direction is reversed. At this time, the hook 52 remains in the non-locking state with the reverse-side 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 36 as shown in FIGS. 12 (f), 13 (b), and 16 (f). As the joint 21 moves into the reverse offset groove 36, the roller 47 moves along the side 55 b of the hook guide 55, and the hook 52 rotates clockwise by the urging force of the tension spring 48. The working unit 60 is locked by the reversing side lock pin 43, and its swing 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, as shown in FIGS. 12 (g), 13 (c), 14 (c), and 16 (g), the offset mechanism unit 10 is moved to the left in the body width direction. While swinging, the joint 21 moves along the inside of the reverse offset groove 36 toward 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 36 in the guide member 30 of the reversing mechanism unit 19, the swinging of the working unit 60 is locked with respect to the offset mechanism unit 10 while the direction of the working unit 60 remains reversed. In addition, when the offset mechanism unit 10 is swung while the direction of the working unit 60 is maintained in the reversed state, the join 21 moves in the reverse offset groove 36 and moves to the reverse working position Pr. The offset amount with respect to the traveling position of the traveling machine body 90 can be adjusted while maintaining the inversion state, and the position of the working unit 60 relative to the rod can be finely adjusted even in the inversion operation state. Therefore, it is possible to convert from the work at the forward work position Pf to the work at the reverse work position Pr only by the swing cylinder 17 for rotating the offset mechanism part, and locking the swing of the work part 60 at each work position. Thus, the load on the oscillating cylinder 17 is also reduced, and stable work can be performed.

  In the above-described embodiment, the case where no mechanism for locking the swing of the offset mechanism unit 10 with respect to the mounting unit 5 is provided is shown. However, as shown in FIG. A lock device 70 that locks the swing of the offset mechanism unit 10 may be provided. Further, in the above-described embodiment, the description has been made by taking the case of the coater 1 as an example of the offset working machine. The same effect as that described above, that is, the effect of being able to lock the swing of the working unit 60 in the reverse working state can be obtained.

1 Spider coater (offset work machine)
DESCRIPTION OF SYMBOLS 5 Mounting part 10 Offset mechanism part 15 Rotation support arm 17 Oscillation cylinder (extension actuator)
DESCRIPTION OF SYMBOLS 19 Reverse mechanism part 20 Link mechanism part 21 Joint 30 Guide member 40 Working part rotation locking device 42 Advance side lock pin 43 Reverse side lock pin 45, 52 Hook 45a Forward side engagement member 45b Reverse side engagement member 47 Roller (contact) Element)
49, 55 Hook guide (turning lock release member)
60 working unit 90 traveling machine body Pa guidance start position Pe guidance end position Pf forward work position Pr reverse work position

Claims (3)

Mounted on the traveling machine body, receives power from the traveling machine body, and operates at a forward work position offset to one side with respect to the traveling position of the traveling machine body and a reverse work position offset to the other side with respect to the traveling position. An offset working machine having a working part,
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 that can reverse the direction of the working unit according to the rotation of the offset mechanism unit between a forward working direction capable of working at the forward working position and a reversing working direction capable of working at the reverse working position. With
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
Along with the rotation of the offset mechanism part, when the joint moves from the guide start position provided on one end side of the guide member to the forward work position side, the working part facing the forward work direction with respect to the offset mechanism part When the joint is guided along the guide member with the rotation of the offset mechanism section, the swing lock of the working section is released and the offset mechanism section is on the reverse working position side. When the joint moves from the guide end position provided on the other end side of the guide member to the reversal work position side with the rotation of the guide member, the swinging of the working part toward the reversal work direction with respect to the offset mechanism part is locked. An offset working machine comprising a working part rotation locking device. The working unit rotation locking device is:
A forward lock pin and a reverse lock pin projecting from the working part;
A forward engagement member that is pivotally provided on the pivot support arm and that can be engaged with the forward lock pin at a distal end when the joint is at the guide start position of the guide member; and the joint A hook provided with a reversing side engaging member that can be locked to the reversing side lock pin at the tip when the guide member is at the guide end position;
Provided at the tip of the offset mechanism part, contact with a contact member provided on the hook, guide the movement of the contact member as the offset mechanism part rotates, the hook rotates, When the joint is at the guide start position of the guide member, the hook rotates as the offset mechanism swings toward the reverse operation position, and the forward engagement member becomes the forward lock pin. When the locked state is released and the joint is in the guide end position of the guide member, the hook is rotated in accordance with the rotation of the offset mechanism portion toward the forward working position, and the reverse side The offset working machine according to claim 1, further comprising: a rotation lock releasing member that releases a state in which the engaging member is engaged with the reverse-side lock pin. The forward-side lock pin and the forward-end engaging member are disposed at positions where they are locked together when the joint is at the guide start position of the guide member,
The tip of the reversing side lock pin and the reversing side engaging member is disposed at a position where the joint is locked with each other when the joint is at the guiding end position of the guide member. The offset work machine described.

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