JP5778447B2 - 畦 coating machine - Google Patents

Description

  The present invention relates to a spreader mounted on the rear side in the traveling direction of a traveling machine body, and is provided with a swing mechanism in the spreader machine so as to swing the spreader with respect to the traveling machine body. Regarding the mechanism.

  Conventionally, in order to rock the coater with respect to the traveling machine body, a manual insertion / extraction / extension mechanism using a lock pin is mounted on the oscillation mechanism provided in the coater, and the manual insertion / extraction / extension mechanism is locked. A configuration is known in which a swing mechanism is swung, that is, a wrinkle coater is swung by expanding and contracting by a pin insertion / removal operation (Patent Document 1).

  In such a manual insertion / extraction expansion / contraction mechanism, an elastic member such as a spring always urges the expansion / contraction state to be locked by the lock pin, and the operator opposes the lock pin against the urging force of the elastic member. By pulling on, it is a mechanism to release the locked state.

In addition, as shown in FIG. 9 as an example of a coater that employs such a manual insertion / extraction expansion / contraction mechanism, a manual insertion / extraction expansion / contraction mechanism 117 includes a hitch frame 106 that is mounted and fixed to the rear of the traveling machine body, It is arranged so as to span the offset frame 111.
In this case, when actually swinging, the lock pin 151 is removed from the manual insertion / extraction expansion / contraction mechanism 117, and the offset frame 111 is swung by grasping any part of the offset frame 111 or the working unit 60 by hand. After that, the lock pin 151 is inserted into the hole of the manual insertion / extraction expansion / contraction mechanism 117 to fix the expansion / contraction operation of the manual insertion / extraction expansion / contraction mechanism 117. As a result, the swing of the offset frame 111 with respect to the hitch frame 106 is also fixed. It is supposed to be done.

Next, a specific configuration of the manual insertion / extraction expansion / contraction mechanism 117 using the lock pin will be described with reference to FIGS. 10 (a) to 10 (c) as the manual insertion / extraction expansion / contraction mechanism 117 viewed from the side. To do.
As shown in FIG. 10A, the manual insertion / extraction expansion / contraction mechanism 117 includes a long outer cylinder 120, an inner rod 130 whose one end slides inside the outer cylinder 120, and the outer cylinder 120 and the inner rod 130. And a lock pin 151 that is urged in a locking direction by the elastic force of an elastic member 155 (see FIG. 10B).

  Then, as shown in FIG. 10C, by moving the lock pin 151 in the direction opposite to the elastic force of the elastic member 155, the lock pin 151 comes out of the hole 127, and the manual insertion / extraction expansion / contraction mechanism 117 is locked in the expansion / contraction state. Is to be released.

Further, FIGS. 11A and 11B are diagrams showing a specific operation when the manual insertion / extraction / extension mechanism 117 using a lock pin is viewed from directly above as a conventional example, and FIG. This shows a state in which the offset frame 111 (not shown) hardly swings with respect to the hitch frame 106, that is, a state in which the manual expansion / contraction mechanism is relatively contracted.
On the other hand, FIG. 10B shows a state in which the offset frame 111 (not shown) is swinging with respect to the hitch frame 106, that is, a state in which the manual expansion / contraction mechanism is relatively extended. Is.

  As described above, the manual insertion / extraction expansion / contraction mechanism 117 using the lock pin 151 as a conventional example can perform the expansion / contraction operation by performing the operation of removing the lock pin every expansion / contraction operation. The wrinkle coater can be swung with respect to the traveling machine body.

JP 2002-165502 A

  However, in this manual insertion / extraction expansion / contraction mechanism 117, the operator maintains the state where the lock pin 151 is removed from the hole with one hand, while the other hand holds any part of the offset frame 111 or the working unit 60. There is a problem that it is difficult to operate because it is necessary to hold and swing.

  Accordingly, the present invention provides an expansion mechanism for swinging the coater with respect to the traveling machine body that is provided in the swing mechanism of the coater and is easy to operate and can be easily locked in the swinged state. It is an object of the present invention to provide a manual expansion / contraction mechanism that can be used.

  The invention according to claim 1 is an offset working machine mounted on a traveling machine body, a working position where work is performed by traveling of the traveling machine body, and a non-working position which is arranged behind the traveling machine body and does not perform work. And a swing mechanism that moves the work portion between the work position and the non-work position, and is mounted on the swing mechanism and swings in the swing mechanism. A manual expansion / contraction adjustment mechanism that can be expanded and contracted to lock the expansion / contraction state, and the manual expansion / contraction adjustment mechanism is a movable type that releases the lock state of the expansion / contraction state of the manual expansion / contraction adjustment mechanism. An unlocking operation unit and a fixed gripping unit provided at a position close to the unlocking operation unit are provided.

  The invention according to claim 2 is a hitch frame that is mounted on the rear side in the traveling direction of the traveling aircraft body, an offset frame that is pivotally connected to the hitch frame and disposed on the rear side, An offset operation having a manual expansion / contraction adjustment mechanism that spans between the hitch frame and the offset frame and that expands and contracts to swing the offset frame with respect to the hitch frame so that the expansion / contraction state can be locked. The manual expansion / contraction adjustment mechanism is provided at a position close to the unlocking operation unit and a movable unlocking operation unit that releases a lock state of the expansion / contraction state of the manual expansion / contraction adjustment mechanism. And a fixed gripping portion.

  According to a third aspect of the present invention, there is provided a hitch frame that is mounted on the rear side in the traveling direction of the traveling machine body, and an offset frame and a link that are pivotally connected to the hitch frame and disposed on the rear side. A member, a rotation support member rotatably connected to the offset frame and the link member, and between the hitch frame and the offset frame or the link member, or the rotation support member and the offset. It is spanned between the frame or the link member, or between the offset frame and the link member, and the offset frame and the link member are swung with respect to the hitch frame and the rotation support member. Therefore, an offset working machine having a manual expansion / contraction adjustment mechanism that can be expanded and contracted to lock the expansion / contraction state. The manual expansion / contraction adjustment mechanism includes a movable lock release operation unit that releases a lock state of the expansion / contraction state of the manual expansion / contraction adjustment mechanism, and a fixed grip unit provided at a position close to the lock release operation unit. And.

  Invention of Claim 4 is the offset working machine in any one of Claim 1 thru | or 3, Comprising: The positional relationship in which the said lock release operation part and the said holding part can be hold | gripped simultaneously with one hand It is characterized by having.

  A fifth aspect of the present invention is the offset working machine according to any one of the first to fourth aspects, wherein the unlocking operation unit is in an expanded state of the manual expansion / contraction adjusting mechanism by an elastic member. It is biased to maintain the locked state.

  The invention according to claim 6 is the offset working machine according to any one of claims 1 to 5, wherein the manual expansion / contraction adjustment mechanism is a long outer cylinder provided with the grip portion. And an inner rod whose one end slides inside the outer cylinder, and a lock bar having the unlocking operation part at one end, and an engagement piece is provided at the other end of the lock bar, The inner rod is provided with an engaging portion that engages with the engaging piece to lock the expansion / contraction state of the manual expansion / contraction adjustment mechanism.

  According to the present invention, when the smearing machine is swung with respect to the traveling machine body, the gripping operation of the stretching mechanism used for rocking is released by the gripping operation with only one hand, and the gripping operation with respect to the one hand It is possible to swing the wrinkle coater with the force of one hand while maintaining the above. Then, when the coater is swung to a desired position, the swinging state is automatically locked by releasing one hand, so that the operability is greatly improved.

1 is a partial plan view of a wrinkle coater according to a first embodiment of the present invention. The side view of the glazing machine which concerns on 1st Embodiment of this invention is shown. 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 viewed 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 expansion schematic side view of the front end side of the offset frame provided in the plastering machine which concerns on 1st Embodiment of this invention is shown. The block diagram of the manual expansion-contraction adjustment mechanism mounted in the plastering machine which concerns on 1st Embodiment of this invention is shown. The operation | movement of the manual type expansion-contraction adjustment mechanism mounted in the coating machine which concerns on 1st Embodiment of this invention is shown. The operation | movement of the rocking | fluctuation mechanism mounted in the plastering machine concerning 1st Embodiment of this invention is shown. The operation | movement of the rocking | fluctuation mechanism mounted in the plastering machine concerning 2nd Embodiment of this invention is shown. The fragmentary top view of the manual insertion / extraction expansion-contraction mechanism and rocking | fluctuation mechanism mounted in the plastering machine which concerns on the conventional embodiment is shown. The block diagram of the manual insertion / extraction expansion-contraction mechanism which concerns on the conventional embodiment is shown. The block diagram of the manual insertion / extraction expansion-contraction mechanism which concerns on the conventional embodiment is shown.

  Hereinafter, a preferred embodiment of a coater according to the present invention will be described with reference to FIG. 1 (partial plan view) and FIG. 2 (side view). An outline will be described. As a reference for the description, a perspective view (FIG. 3) of the wrinkle coater according to the present invention is also referred to.

  As shown in FIG. 1 (partial plan view) and FIG. 2 (side view), the wrinkle coater 1 is connected to a three-point link connecting mechanism 91 provided at the rear of the traveling machine body 90 so that the traveling machine body 90 moves forward. In addition, the paintwork is performed 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 tip side of the offset mechanism unit 10 so as to be pivotable and works by power transmitted from the input shaft 8a.

  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 expanded and contracted by a manual expansion / contraction adjustment mechanism 17 connected between the tip end side of the offset frame 11 and one end portion of the hitch frame 6. The offset 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 rotation 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 base end side end portion of the parallel link frame portion 15a toward the mounting portion 5 (FIG. 3A). )), 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.

  Further, as shown in FIG. 4 (partially enlarged schematic side view), a power transmission shaft 14 is arranged coaxially with the driven shaft 12 below the driven shaft 12 provided at the tip of the offset frame 11 and is positioned below. 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 FIG. 1, FIG. 3 (a), FIG. 3 (b), the transmission support case 61 has a top field process that cuts off the upper part of the old paddle formed along the periphery of the field. 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.

  In the present embodiment, the structure of the coater is a part that can be rotated around the rotation fulcrum O as the rotation center axis, and includes the transmission support case 61 and the transmission support frame 65. The configuration of the heaven field processing unit 62, the preprocessing unit 64, and the trimming unit 66 disposed on the tip side is defined as the working unit 60 and will be described.

  The heaven processing unit 62 includes a rotatable heaven processing rotor 62a (see FIG. 3B). 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 claw 20 (see FIG. 2). Power is transmitted to the tilling claw 20 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 turn about the rotation fulcrum O about the central axis of the power transmission shaft 14 (see FIG. 4) provided on the distal end side of the offset mechanism unit 10 via the connecting portion 18.

Here, the detailed configuration of the manual expansion / contraction adjustment mechanism 17 will be described with reference to FIG.
As shown in FIG. 5, the manual expansion / contraction adjusting mechanism 17 includes a long outer cylinder 20, an inner rod 30 whose one end slides inside the outer cylinder 20, and an operator fixed to the outer cylinder 20. Is provided with a gripping portion 40 for generating a swinging force for swinging the offset frame 11, and when one end of the inner rod 30 slides inside the outer tube 20, A lock mechanism 50 that locks the position of the inner rod 30 is provided.

The lock mechanism 50 includes a lock pin guide tube 25 provided on the outer tube 20 and a lock pin 51 inserted into a plurality of inner holes 35 provided on the inner rod 30 at one end and the other end. A lock bar 53 having a lock release operation part 52; and a support shaft part 54 provided so that the lock bar 53 operates in a seesaw shape with respect to the outer cylinder 20 by the operation of the lock release operation part 52. Yes.
Further, the lock pin 51 is provided with an elastic member 55, and is always urged by the elastic force of the elastic member 55 in the direction of being inserted into the inner hole portion 35, that is, in the locked direction.

Here, the operation of the manual expansion / contraction adjustment mechanism 17 will be described in detail with reference to FIGS.
The state shown in FIG. 6A shows a state in which the lock pin 51 is urged in the direction of insertion into the inner hole portion 35 by the elastic force of the elastic member 55. It shows a state where the telescopic state is locked.
That is, this also indicates a state in which no operation of the unlocking operation unit 52 by the operator is performed.

Here, when the operation of the unlocking operation unit 52 is performed by the operator, the unlocking operation unit 52 is revolved around the support shaft portion 54 as a rotation center, repelling the elastic force of the elastic member 55. Become.
Then, as shown in FIG. 6B, the lock pin 51 is pulled out from the inner hole portion 35, and the position of the unlocking operation portion 52 when operated and the position of the grip portion 40 are close to each other, or The positional relationship is in contact.
For this reason, the operator can easily operate the unlocking operation unit 52 by holding the holding unit 40 together with the unlocking operation unit 52 so as to be held by one hand at the same time. The locked state related to expansion / contraction is released.

  Further, the lock pin 51 is also rotated about the support shaft portion 54 by the rotation operation of the lock release operation portion 52. However, since the lock pin guide tube 25 is provided, the lock pin 51 is provided. The operation 51 is performed smoothly.

  Furthermore, when the lock pin 51 is pulled out from the inner hole portion 35, the operator does not perform the operation of pulling the lock pin 51, but can be unlocked by holding it with one hand. In this configuration, the operator can effectively exert a greater force.

Next, a state where the manual expansion / contraction adjusting mechanism 17 is extended will be described with reference to FIG.
As shown in FIG. 6B, the locked state related to the expansion / contraction of the manual expansion / contraction adjustment mechanism 17 is released by one-hand operation (gripping operation) of the operator, and as a result, the outer cylinder 20 and the inner rod 30 are moved. It becomes slidable mutually. As shown in FIG. 6C, the inner rod 30 can slide with respect to the outer cylinder 20, and the manual expansion / contraction adjustment mechanism 17 can be extended as a whole.

  Here, although not shown in FIG. 6, one end of the outer cylinder 20 is connected to the offset frame 11 (see FIG. 7), so that the operator simultaneously removes the unlocking operation unit 52 and the gripping unit 40. After holding and grasping, the offset frame 11 swings with respect to the hitch frame 6 by moving the grasped one hand. As a result, the inner rod 30 slides with respect to the outer cylinder 20 and the manual expansion / contraction adjusting mechanism 17 extends as a whole, which will be described later.

Next, an operation of swinging the offset frame 11 with respect to the hitch frame 6 by the operation of the manual expansion / contraction adjusting mechanism 17 will be described in detail with reference to FIGS.
Here, FIG. 7 shows a configuration in which an offset frame 11 is swingably connected to the hitch frame 6, and a configuration in which a manual expansion / contraction adjustment mechanism 17 is bridged between the hitch frame 6 and the offset frame 11. It is shown as

  The offset frame 11 is swingably connected to the hitch frame 6, and the four-bar linkage mechanism (see FIG. 8) will be described below as a swing mechanism.

  Further, as shown in the figure, the gripping portion 40 that is gripped at the same time when the unlocking operation portion 52 is gripped is fixed in the vicinity of the offset frame 11 (on the outer cylinder 20). The power when the person operates the grip portion 40 can be efficiently utilized as the power for swinging the offset frame 11.

7A to 7C show a state in which the offset frame 11 swings to the right in the traveling direction of the traveling machine body 90, and FIG. 7E swings to the left in the traveling direction. It shows the state.
FIG. 7D shows a state where the offset frame 11 is not rocked with respect to the traveling direction of the traveling machine body 90.

  Then, with respect to the state where the offset frame 11 is swung to the right in the traveling direction, as shown in each state of FIGS. Designed in advance, the holes in the respective stages (states) are, in order of increasing swing angle, (1) inner hole 36a (see FIG. 7A) and (2) inner hole 36b (FIG. 7 ( b)) and (3) the inner hole 36c (see FIG. 7C), respectively.

  As for the state in which the offset frame 11 swings to the left in the traveling direction, (4) the inner hole portion 36d (see FIG. 7D) and (5) the inner hole portion 36e (see FIG. 7E) , Respectively.

  Here, when the operator swings the offset frame 11 by one step toward the right side in the traveling direction of the traveling machine body 90, that is, the state shown in FIG. 7D is changed to the state shown in FIG. In doing so, first, the lock release operation part 52 is rotated about the support shaft part 54 as a rotation center, and the lock pin 51 is removed from the inner hole part 36d to release the locked state.

  After that, by rotating the offset frame 11 in the direction (M in the figure) that swings the offset frame 11 to the right in the traveling direction of the traveling machine body 90 together with the grasping unit 40 grasped at the same time when the unlocking operation unit 52 is grasped. The state shown in FIG. 7D can be changed to the state shown in FIG.

  7C. After the offset frame 11 is swung to the state shown in FIG. 7C, the operator releases the unlocking operation portion 52, so that the elastic force of the elastic member 55 works, and the lock pin 51 becomes the inner hole portion. It is inserted into 36c and locked in a state where the manual expansion / contraction adjusting mechanism 17 is extended.

  Next, when the operator swings the offset frame 11 to the left in the traveling direction of the traveling machine body 90, that is, when the operator operates from the state shown in FIG. 7D to the state shown in FIG. As in the case where the frame 11 is swung to the right in the traveling direction of the traveling machine body 90, first, the unlocking operation part 52 is rotated around the support shaft part 54 and the lock pin 51 is removed from the inner hole part 36d. The locked state will be released.

  By rotating the offset frame 11 in the direction (N in the figure) to swing the offset frame 11 to the left in the traveling direction of the traveling machine body 90 together with the grasping unit 40 grasped at the same time when the unlocking operation unit 52 is grasped. The state shown in FIG. 7D can be changed to the state shown in FIG.

  Also in this case, when the operator releases the unlocking operation part 52, the elastic force of the elastic member 55 works, the lock pin 51 is inserted into the inner hole part 36e, and the manual expansion / contraction adjustment mechanism 17 is extended. It will be locked.

  In the present embodiment, as shown in FIGS. 7D and 7E, there are only two holes (inner hole part 36d and inner hole part 36e) into which the lock pin 51 is inserted. As long as the lock pin 51 is not inserted into these two holes, the length related to the expansion and contraction of the manual expansion / contraction adjustment mechanism 17 is not locked.

That is, if the state shown in FIG. 7 (d) is changed to the state shown in FIG. 7 (e), the operator first rotates the unlocking operation part 52 around the support shaft part 54 as a rotation center. Thus, the lock pin 51 is removed from the inner hole 36d to release the locked state.
When the offset frame 11 is slightly rotated toward the left side in the traveling direction of the traveling machine body 90 while simultaneously grasping the unlocking operation unit 52 and the gripping unit 40, the lock is released when only the unlocking operation unit 52 is released. Although the pin 51 continues to be urged to the inner rod 30 by the elastic member 55, it is not locked until it reaches the hole to be inserted (inner hole 36e).

  For this reason, the operator releases the lock release operation unit 52 at a stage where the offset frame 11 is slightly rotated toward the left side in the running direction of the traveling machine body 90 while simultaneously holding the lock release operation unit 52 and the gripping unit 40. After that, it is only necessary to hold and operate only the grip portion 40.

Next, an operation when the operator swings the offset frame 11 to the right in the traveling direction of the traveling machine body 90 to change from the state shown in FIG. 7D to the state shown in FIG.
In this case, as described above, in the state shown in FIG. 7 (d), the unlocking operation part 52 is rotated to remove the lock pin 51 from the inner hole part 36d, and the offset frame 11 is brought into the state shown in FIG. 7 (a). Until that time, the traveling machine body 90 can be swung to the right in the traveling direction, and then the operator can release the unlocking operation unit 52 to lock the length of the manual expansion / contraction adjusting mechanism 17.

  In this case, the hole into which the lock pin 51 is inserted is the inner hole 36a. However, when the operator adjusts the angle at which the offset frame 11 is swung, the position of the lock pin 51 By swinging the offset frame 11 so as to match the position of the inner hole 36b or the inner hole 36c of the rod 30, and releasing the unlocking operation part 52 at that time, the lock pins 51 are inserted into these holes. Will be locked.

  Furthermore, in the present embodiment, when shifting from the state shown in FIG. 7D to the state shown in FIG. 7A, that is, during the operation of three steps, the unlocking operation unit 52 is always held. It is not necessary to keep it.

  That is, the lock pin 51 is inserted into the inner hole portion 36b and the inner hole portion 36c while the offset frame 11 is swung from the state shown in FIG. 7D toward the state shown in FIG. 7A. Otherwise, it can swing smoothly.

  Specifically, the operator first rotates the unlocking operation portion 52 around the support shaft portion 54 as the center of rotation, removes the lock pin 51 from the inner hole portion 36d, releases the locked state, and releases the lock. The offset frame 11 is rotated toward the right side in the traveling direction of the traveling machine body 90 while simultaneously grasping the operation unit 52 and the gripping unit 40.

When the offset frame 11 swings further than the state shown in FIG. 7C and the state shown in FIG. 7B, the unlocking operation part 52 is released, while the grip part 40 is operated as it is. By continuing the operation, the lock pin 51 continues to be urged by the inner rod 30 by the elastic member 55 and moves.
Thereafter, when the state shown in FIG. 7A is reached, the lock pin 51 is automatically inserted into the inner hole 36a by the elastic member 55, and the length of the manual expansion / contraction adjustment mechanism 17 is locked. It becomes.

Next, the second embodiment will be described in detail with reference to FIGS.
In the first embodiment described above, a configuration in which the offset frame 11 is swingably connected to the hitch frame 6 is shown as a configuration in which the manual expansion / contraction adjustment mechanism 17 is bridged. However, the second embodiment is described. Is a four-bar linkage mechanism constituted by the offset frame 11, the link member 13, the hitch frame 6, and the rotation support arm 15, and is provided with a manual expansion / contraction adjustment mechanism 17.

  Further, as shown in the figure, the four-bar linkage mechanism in the present embodiment employs a parallel four-bar link mechanism in which the offset frame 11 and the link member 13 are parallel to each other. The present invention is not limited to the configuration, and the present invention can be applied to an irregular four-bar linkage mechanism (not shown) in which the offset frame 11 and the link member 13 are not parallel.

  In addition, since the support of the working unit 60 with respect to the swing mechanism is stabilized by adopting the four-bar link mechanism, the manual expansion / contraction adjustment mechanism 17 according to the present invention is applied to the four-bar link mechanism, thereby further improving the stability. Thus, the offset frame 11 can be swung while securing the properties, and smooth swinging is possible with a light force.

FIG. 8A shows a state where the offset frame 11 swings to the right in the traveling direction of the traveling machine body 90, and FIG. 8C shows a state where the offset frame 11 swings to the left in the traveling direction.
FIG. 8B shows a state in which the offset frame 11 does not swing with respect to the traveling direction of the traveling machine body 90.

  Here, when the operator swings the offset frame 11 to the right in the traveling direction of the traveling machine body 90, that is, when the operator operates from the state shown in FIG. 8B to the state shown in FIG. As described above, the lock release operation portion 52 is rotated about the support shaft portion 54 as a rotation center, and the lock pin 51 is removed from the inner hole portion 35 to release the locked state.

  Here, in the state shown in FIG. 8B, the hole portion into which the lock pin 51 is inserted is an inner hole portion 37 d provided in the inner rod 30, and the lock release operation portion 52 is operated to lock the hole portion. The pin 51 is pulled out from the inner hole portion 37d.

  After that, by rotating the offset frame 11 in the direction (M in the figure) that swings the offset frame 11 to the right in the traveling direction of the traveling machine body 90 together with the grasping unit 40 grasped at the same time when the unlocking operation unit 52 is grasped. The state shown in FIG. 8B can be changed to the state shown in FIG.

  After the offset frame 11 is swung to the state shown in FIG. 8A, the operator releases the unlocking operation portion 52, so that the elastic force of the elastic member 55 works and the lock pin 51 is moved to the inner rod 30. The manual expansion / contraction adjusting mechanism 17 is locked in the extended state.

  Specifically, in the state shown in FIG. 8A, the hole into which the lock pin 51 is inserted is an inner hole 37a formed on the inner rod 30, and the operator operates the unlock operation part 52. By releasing, the lock pin 51 is inserted into the inner hole portion 37a and locked.

  In this case, the hole portion into which the lock pin 51 is inserted is the inner hole portion 37a. However, when the operator adjusts the angle at which the offset frame 11 is swung, the position of the lock pin 51 is changed to the inner rod 30. The offset frame 11 is swung so as to match the position of the inner hole portion 37b or the inner hole portion 37c, and the lock release operation portion 52 is released at that time, so that the lock pins 51 are inserted into the hole portions and locked. Will be.

  Next, when the operator swings the offset frame 11 to the left in the traveling direction of the traveling machine body 90, that is, when operating from the state shown in FIG. 8B to the state shown in FIG. As in the case where the frame 11 is swung to the right in the traveling direction of the traveling machine body 90, first, as shown in FIG. 6B, the unlocking operation portion 52 is rotated about the support shaft portion 54 as a rotation center, The lock pin 51 is removed from the inner hole portion 37d, and the locked state is released.

  By rotating the offset frame 11 in the direction (N in the figure) to swing the offset frame 11 to the left in the traveling direction of the traveling machine body 90 together with the grasping unit 40 grasped at the same time when the unlocking operation unit 52 is grasped. The state shown in FIG. 8B can be changed to the state shown in FIG.

  Also in this case, when the operator releases the unlocking operation portion 52, the elastic force of the elastic member 55 works, and the lock pin 51 is inserted into the hole provided in the inner rod 30, and the manual expansion / contraction adjusting mechanism 17 is operated. Will be locked in the extended state.

  Specifically, in the state shown in FIG. 8C, the hole into which the lock pin 51 is inserted is an inner hole 37e formed in the inner rod 30, and the operator releases the lock release operation part 52. Thus, the lock pin 51 is inserted into the inner hole portion 37e and locked.

  Therefore, when the operator changes the state shown in FIG. 8B to the state shown in FIG. 8A or the state shown in FIG. 8C, the operator operates the unlocking operation unit 52 and the gripping unit 40 with one hand. Since the one hand that is grabbed by pressing is moved from the state shown in FIG. 8 (b) to each state and moved, it is locked only by releasing the one hand that is grasped. The mechanism 17 is excellent in operability.

  In other words, since the unlocking operation unit 52 and the gripping unit 40 are grasped with one hand, and the unlocking state is maintained by continuing to grasp, it is easy to simply release when the offset frame 11 is swung to a desired position. It can be locked.

  Moreover, in this embodiment, as shown to Fig.8 (a)-(c), the hole part in which the lock pin 51 is inserted has five places (inner hole part 37a, inner hole part 37b, inner hole part 37c. And the length of the manual expansion / contraction adjustment mechanism 17 is not locked unless the lock pin 51 is inserted into the five holes.

In other words, if the state shown in FIG. 8B is changed to the state shown in FIG. 8C, the operator first rotates the unlocking operation unit 52 around the support shaft 54 as the rotation center. Thus, the lock pin 51 is removed from the inner hole portion 37d to release the locked state.
When the offset frame 11 is slightly rotated toward the left side in the traveling direction of the traveling machine body 90 while simultaneously grasping the unlocking operation unit 52 and the gripping unit 40, the lock is released when only the unlocking operation unit 52 is released. Although the pin 51 continues to be urged against the inner rod 30 by the elastic member 55, it is not locked until it reaches the hole to be inserted (inner hole 37e).

  For this reason, the operator releases the lock release operation unit 52 at a stage where the offset frame 11 is slightly rotated toward the left side in the running direction of the traveling machine body 90 while simultaneously holding the lock release operation unit 52 and the gripping unit 40. After that, it is only necessary to hold and operate only the grip portion 40.

In addition, although embodiment mentioned above has shown the arrangement configuration which spanned the manual expansion-contraction adjustment mechanism 17 between the hitch frame 6 and the offset frame 11, this invention is not limited to this arrangement configuration. Absent.
That is, although not shown in the drawings, the manual expansion / contraction adjusting mechanism 17 is arranged between the rotation support arm 15 and the offset frame 11 or between the rotation support arm 15 and the link member 13. An arrangement configuration or an arrangement configuration that spans between the hitch frame 6 and the link member 13 may be used, and the arrangement configuration of the manual expansion / contraction adjustment mechanism 17 is not limited.

Further, as long as the offset frame 11 and the link member 13 can be swung with respect to the hitch frame 6 and the rotation support arm 15 by extending and contracting, the manual expansion / contraction adjusting mechanism 17 is linked to the offset frame 11. It is good also as an arrangement configuration (illustration omitted) spanning between member 13.
In this case, it is not necessary to connect the manual expansion / contraction adjustment mechanism 17 to the hitch frame 6 and the rotation support arm 15, so that space saving is achieved in the hitch frame 6 fixed to the traveling machine body 90, and the working unit 60 is connected. The rotating support arm 15 can also save space, and can avoid interference with other components and the like in the coater as much as possible.

As described above, by using the manual expansion / contraction adjustment mechanism according to the present invention, when the wrinkle machine is swung with respect to the traveling machine body, the lock of the expansion / contraction mechanism used for rocking can be performed by a gripping operation with only one hand. The state is released, and it becomes possible to swing the wrinkle coater with the force of the one hand while maintaining the gripping operation related to the one hand.
Then, when the coater is swung to a desired position, the swinging state is automatically locked by releasing one hand, so that the operability is greatly improved.

1 Sprinkling machine 1
6 Hitch frame 10 Offset mechanism part 11 Offset frame 13 Link member 15 Rotating support arm 17 Manual expansion / contraction adjustment mechanism 20 Outer cylinder 25 Lock pin guide cylinder 30 Inner bar 35 Inner hole part 40 Holding part 50 Lock mechanism part 51 Lock pin 52 Unlocking operation portion 53 Lock bar 54 Support shaft portion 55 Elastic member 90 Traveling machine body

Claims (5)

An offset work machine mounted on a traveling machine body,
A working unit capable of moving to a work position where work is performed by traveling of the traveling machine body and a non-working position which is arranged behind the traveling machine body and which does not perform work;
A swinging mechanism for moving the working unit between the working position and the non-working position;
A manual expansion / contraction adjustment mechanism that is mounted on the swing mechanism and that can be expanded and contracted to lock the expand / contract state in order to swing the swing mechanism;
The manual expansion / contraction adjustment mechanism includes a movable lock release operation unit that releases a lock state of the expansion / contraction state of the manual expansion / contraction adjustment mechanism, and a fixed grip unit provided at a position close to the lock release operation unit. And an elongated outer cylinder provided with the gripping part, an inner rod whose one end slides inside the outer cylinder, and a lock bar having the unlocking operation part at one end, The lock bar is provided with a lock pin, and the inner rod is provided with an inner hole portion that locks the expansion / contraction state of the manual expansion / contraction adjustment mechanism by inserting the lock pin. Offset work machine. A hitch frame mounted on the rear side in the traveling direction of the traveling body, an offset frame pivotally connected to the hitch frame and disposed on the rear side, and the hitch frame and the offset frame. An offset working machine having a manual expansion / contraction adjustment mechanism that is stretched between the hitch frame and extends and contracted to lock the expansion / contraction state.
The manual expansion / contraction adjustment mechanism includes a movable lock release operation unit that releases a lock state of the expansion / contraction state of the manual expansion / contraction adjustment mechanism, and a fixed grip unit provided at a position close to the lock release operation unit. And an elongated outer cylinder provided with the gripping part, an inner rod whose one end slides inside the outer cylinder, and a lock bar having the unlocking operation part at one end, The lock bar is provided with a lock pin, and the inner rod is provided with an inner hole portion that locks the expansion / contraction state of the manual expansion / contraction adjustment mechanism by inserting the lock pin. Offset work machine. A hitch frame that is mounted on the rear side in the traveling direction of the traveling machine body, an offset frame and a link member that are pivotally connected to the hitch frame and disposed on the rear side, and the offset frame and the link A pivot support member that is pivotably connected to the member, and between the hitch frame and the offset frame or the link member, or between the pivot support member and the offset frame or the link member. Or, it is spanned between the offset frame and the link member, and is expanded and contracted to swing the offset frame and the link member with respect to the hitch frame and the rotation support member, and the expansion / contraction state can be locked. An offset working machine having a manual expansion / contraction adjustment mechanism,
The manual expansion / contraction adjustment mechanism includes a movable lock release operation unit that releases a lock state of the expansion / contraction state of the manual expansion / contraction adjustment mechanism, and a fixed grip unit provided at a position close to the lock release operation unit. And an elongated outer cylinder provided with the gripping part, an inner rod whose one end slides inside the outer cylinder, and a lock bar having the unlocking operation part at one end, The lock bar is provided with a lock pin, and the inner rod is provided with an inner hole portion that locks the expansion / contraction state of the manual expansion / contraction adjustment mechanism by inserting the lock pin. Offset work machine.   The offset work machine according to any one of claims 1 to 3, wherein the unlocking operation unit and the gripping unit have a positional relationship in which they can be gripped simultaneously with one hand. The unlocking operation portion is urged by an elastic member into which the lock pin is inserted so as to maintain a locked state of the manual expansion / contraction adjustment mechanism. Item 5. The offset working machine according to any one of Items 4 to 5.

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