JP5566245B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine that can prevent a tank from being inclined.

  Conventionally, for example, an agricultural machine described in Patent Document 1 is known.

  This conventional farm work machine includes a work machine main body connected to the rear part of a tractor that is a traveling vehicle, a tank that stores water as a liquid, and a tank support means that is provided in the work machine main body and fixedly supports the tank. And. Further, the work machine main body is embedding means for embedding soil, culvert forming means for compacting the embankment by the embankment means to form cocoons, and spraying water connected to the tank toward the culvert forming means. Means.

JP 2008-43211 A (FIG. 2 etc.)

  However, in the conventional farm work machine, since the tank is fixedly supported by the tank support means, there is a problem that when the work machine body is tilted, the tank is also tilted together with the work machine body.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can prevent that a tank will be in an inclined state.

請 Motomeko 1 agricultural machine according includes a work machine body is connected to the vehicle, a tank liquid is stored, is provided on the machine body, the tank so that the tank is maintained in a horizontal state a tank support means for rotatably supporting, in which and a speed reduction means that decelerates the rotation speed of the tank.

The agricultural machine according to claim 2 is provided in the work machine main body connected to the traveling vehicle, a tank storing liquid, and the work machine main body, and the tank is rotated so that the tank maintains a horizontal state. a tank support means for rotatably supporting, can be switched selectively in the restricted state and permitted state, during the working state of the working machine main body, to restrict rotation of the tank and is switched to the regulated state, allowing state those comprising a switched and working conditions during a regulating means for permitting rotation of the tank.

According to a third aspect of the present invention, there is provided a farm work machine provided in the work machine main body connected to the traveling vehicle, a tank storing liquid, and the work machine main body, and rotating the tank so that the tank maintains a horizontal state. a tank support means for rotatably supporting, can be switched selectively in the restricted state and permitted state, the non-operation state of the working machine main body, to restrict rotation of the tank and is switched to the regulated state, the allowable it is intended and a non-working state when a restriction means and is switched to a state that allows the rotation of the tank.

According to a fourth aspect of the present invention, there is provided a farm work machine provided in the work machine main body connected to the traveling vehicle, a tank storing liquid, and the work machine main body, and rotating the tank so that the tank maintains a horizontal state. a tank support means for rotatably supporting, can be switched selectively in the restricted state and permitted state, during the working state of the working machine main body, to restrict rotation of the tank and is switched to the regulated state, allowing state When the working machine main body is not in the working state, the working state regulating means that allows the tank to rotate and the working state main body can be selectively switched to the restricted state and the permitted state. Non-working state restricting means for restricting the rotation of the tank and allowing the tank to rotate when switched to an allowable state.

The agricultural machine according to claim 5 is the agricultural machine according to any one of claims 1 to 4 , wherein the working machine body is connected to a ridge forming means for forming a ridge and a tank, and the liquid from the tank is And spraying means for spraying toward the ridge forming means.

  According to the present invention, since the tank support means for rotatably supporting the tank is provided and the tank can be maintained in a horizontal state, the tank can be prevented from being inclined.

It is a top view at the time of advance work of the agricultural working machine concerning a 1st embodiment of the present invention. It is a top view at the time of reverse work of a farm work machine same as the above. It is a side view at the time of work of an agricultural working machine same as the above. It is a side view at the time of non-working of a farm working machine same as the above. It is a top view of the tank part of an agricultural working machine same as the above. It is a side view of a tank part same as the above. It is a rear view of a tank part same as the above. It is a top view of the tank part of the agricultural working machine which concerns on the 2nd Embodiment of this invention. It is a side view of a tank part same as the above. It is a rear view of a tank part same as the above. It is a side view of the tank part of the agricultural working machine which concerns on the 3rd Embodiment of this invention. It is a rear view of a tank part same as the above. It is a figure which shows the control state of the control means for non-working-state, (a) is the side view, (b) is the back view. It is a figure which shows the permission state of the control means for non-working-state, (a) is the side view, (b) is the back view.

  A first embodiment of the present invention will be described with reference to FIGS.

  In FIG. 1 to FIG. 4, reference numeral 1 denotes a paddy machine that is an agricultural working machine. The padding machine 1 is an offset working machine that is used by being connected to the rear part of a tractor 2 that is a traveling vehicle.

  In the state where the tractor 2 is connected to the rear portion of the tractor 2, the glazing machine 1 performs the glazing operation (the cocoon repairing operation) while moving in the traveling direction (forward) along the culm of the field by the forward traveling of the tractor 2 ( (See FIG. 1). At the corner of the field, the paddle coater 1 is switched from the forward working state to the backward working state, and the traveling direction (backward traveling) of the tractor 2 moves in the traveling direction (rearward) along the straw of the field. The haze is applied while moving (see FIG. 2).

  The tractor 2 includes a tractor body 4 having a front wheel and a rear wheel 3 and a three-point link portion (work) that is provided at a rear end portion of the tractor body 4 and operates hydraulically to move the entire coater 1 up and down within a predetermined range. Machine lifting device) 5 and a PTO shaft 6 rotatably provided at the rear end of the tractor body 4. The three-point link portion 5 has one top link 8 that can be expanded and contracted and two lower links 9 in a pair of left and right that are spaced apart from each other.

  The coater 1 includes a work machine body 11 that is detachably connected to a three-point link unit 5 at the rear of the tractor 2 via a quick coupler 10 and performs a coat work that is a farm work in a horizontal work state.

  The work machine main body 11 is rotatable in the vertical direction with respect to the tractor main body 4 of the tractor 2. That is, the work implement main body 11 becomes a horizontal work state (horizontal work state) shown in FIG. 3 by the downward rotation based on the operation of the three-point link unit 5, and by the upward rotation based on the operation of the three-point link unit 5. It becomes the non-working state (tilt non-working state) of the forward and downward inclination shown in FIG. The inclination angle α of the work machine body 11 in the non-working state is, for example, 25 degrees (10 degrees to 45 degrees).

  In addition, the coater 1 is provided with a tank 12 in which liquid water (for example, one containing a herbicide) may be stored, and the tank 12 fixedly provided on the work machine body 11 always maintains a horizontal state. In this manner, the tank 12 is provided with a tank support means 13 that supports the tank 12 so as to be rotatable about a horizontal rotation center axis X in the horizontal direction.

  That is, since the tank 12 is rotatably attached to the tank support means 13 fixed to the work machine main body 11, as shown in FIGS. 3 and 4, the work machine main body 11 is in the horizontal work state and tilted. In any state of the non-working state, it is possible to always maintain the horizontal state. For example, when the working machine main body 11 in a horizontal working state is rotated upward with respect to the tractor main body 4, the tank support means 13 is rotated upward together with the working machine main body 11. At this time, the tank 12 is separated from the gravity of the tank 12 itself. And based on the gravity of the water in the tank 12, it rotates about the rotation center axis X with respect to the tank support means 13, and maintains a horizontal state (horizontal posture).

  Here, the work machine main body 11 includes a machine body 21 connected to the three-point link part 5 at the rear part of the tractor 2 via a quick coupler 10, and a rotary surface provided on the machine body 21 so as to be rotatable. The filling means (rotary part) 22 that plows and raises the soil of 畦) and the body 21 is rotatably provided, and the filling by the filling means 22 is compacted while rotating behind the filling means 22 in the traveling direction. ) Forming means (disk part) 23 and spraying means 24 connected to the tank 12 for spraying water from the tank 12 toward the soot forming means 23. The embankment means 22 and the ridge forming means 23 are driven to rotate in a predetermined direction based on the power output from the PTO shaft 6 of the tractor 2.

  The airframe 21 has a fixed machine frame 26 connected to the three-point link portion 5 via the quick coupler 10. A movable machine frame 28 is connected to the fixed machine frame 26 via a connecting means 27 composed of a connecting arm or the like, and a banking means 22 and a ridge forming means 23 are provided on the movable machine frame 28. The machine body 21 has driving means 29 and 30 such as cylinders for moving the movable machine frame 28 with respect to the fixed machine frame 26, and the operation of the driving means 29 and 30 causes the coater 1 to move forward. It is selectively switched between the reverse working state and the storage non-working state. The driving means 29 is an offset cylinder, and the driving means 30 is a rotating cylinder.

  The embankment means 22 is a rotary shaft (not shown) which is a front and rear drive shaft rotatably supported by the movable machine frame 28, and cultivates the soil of the rice field and the straw while rotating in a predetermined direction together with the rotary shaft. And a plurality of embankments 31 that are raised. The upper part and the side part of the embankment nail 31 are covered with a cover part 32.

  The ridge forming means 23 includes a rotation shaft (not shown) which is a left and right drive shaft rotatably supported by the movable machine frame 28, and the embankment by the embankment means 22 while rotating in a predetermined direction together with the rotation shaft. A substantially frusto-conical saddle-side surface-forming body 33 that forms a downwardly inclined saddle-side surface toward the rice field side, and a horizontal shape by compacting the embankment by the embankment means 22 while rotating in a predetermined direction together with the rotation axis. And a substantially cylindrical ridge upper surface forming body 34 that forms the ridge upper surface.

  The spraying means 24 has a flexible pipe 36 connected to the lower surface of the tank 12, and a pump (not shown) for pumping water is connected to the middle of the pipe 36. Sprinkling nozzles 38 and 39 are attached to the distal end side of the pipe 36. The watering nozzle 38 sprays water from the tank 12 toward the outer peripheral surface of the side surface forming body 33 during the spraying operation, and the watering nozzle 39 supplies water from the tank 12 during the surface spraying operation to the outer peripheral surface of the surface upper forming body 34. Sprinkle toward. Note that the spraying means 24 does not have a pump and may be sprayed only by the gravity of water, for example. Further, the pipe 36 of the spraying means 24 and the like can cope with the rotation of the tank 12 within the rotation range of the tank 12.

  Here, as shown in FIGS. 5 to 7, the tank support means 13 is, for example, a tank support frame fixedly erected on the mounting plate portion 40 of the fixed machine frame 26 of the machine body 21 of the work machine body 11. It consists of 41. The tank support frame 41 is composed of only one round pipe bent at a plurality of places, for example.

  The tank support frame 41 has a pair of left and right opposing frame portions 42 that are opposite to each other and are opposed to each other. Each opposing frame part 42 is comprised by the vertical part 42a and the horizontal part 42b which protruded toward back from the upper end part of this vertical part 42a. The rear ends of the horizontal portions 42b of the opposing frame portions 42 are integrally connected by a connecting frame portion 43 having a rotation center axis (rotation fulcrum) X extending in the horizontal left-right direction passing through the axis. .

  The tank 12 is attached to the connecting frame portion 43 of the tank support frame 41 so as to be rotatable. The tank 12 is directed in the front-rear direction (the a direction and the b direction in FIG. 6) about the rotation center axis X. A tank frame 46 that rotates toward the tank frame, and a tank body 47 that is detachably attached to the tank frame 46 and rotates integrally with the tank frame 46 are provided.

  The tank frame 46 has a cylindrical tubular portion 45, and a connecting frame portion 43 is rotatably inserted into the tubular portion 45.

  The tank main body 47 includes a main body portion 48 having an upper surface opening for liquid injection formed on the upper surface and a pipe 36 connected to the lower surface, and a lid portion 49 detachably attached to the main body portion 48 and closing the upper surface opening portion. It is composed of. The lid part 49 is formed with an air vent hole 50 for adjusting the pressure in the main body part 48. The tank main body 47 is made of, for example, a synthetic resin, and is covered and protected by, for example, a metal tank frame 46.

  Further, when the tank 12 rotates in the a direction (one direction) with respect to the tank support frame 41, the speed reducing means 51 for gradually reducing the rotation speed of the tank 12 in the a direction with respect to the tank support frame 41 includes tank support. The frame 41 is attached to a mounting plate portion 52 erected on the opposite frame portion 42 on the left side of the frame 41.

  The decelerating means 51 is constituted by an elastic damper 53 made of, for example, a gas spring or a spring. The damper 53 includes a damper main body portion 55 that is rotatably attached to the mounting plate portion 52 via a pin 54, a rod portion 56 that goes in and out of the damper main body portion 55, and a lower end portion of the rod portion 56. And a cylindrical tube portion 57 provided on the surface. A fixing pin 58 fixed to the tank frame 46 by welding or the like is rotatably inserted into the cylindrical portion 57 of the damper 53.

  FIG. 6 shows a state in which the rod portion 56 protrudes from the damper main body portion 55 to the maximum, that is, the longest state in which the damper 53 extends to the maximum. When the damper 53 reaches the longest state, the rotation of the tank 12 in the b direction (the other direction) relative to the tank support frame 41 is restricted by the longest state damper 53.

  Further, when the working machine body 11 is in the horizontal working state, the rotation of the tank 12 in the direction a with respect to the tank supporting frame 41 is restricted when switched to the restricted state, and when the working machine body 11 is switched to the allowable state, the tank supporting frame 41 of the tank 12 is turned on. A working state restricting means 61 that permits rotation in the a direction relative to the tank is attached to the opposite frame portion 42 on the right side of the tank support frame 41. 1 to 4, the working state restriction means 61 is not shown, but the working state restriction means 61 may be omitted.

  The working state restriction means 61 can be rotated about a horizontal center axis Y in the front-rear direction from an operator on the driver's seat of the tractor 2, and the restricted state (locked) can be achieved by the turning operation. State) and permissible state (unlocked state) can be selectively switched.

  This working state restriction means 61 has a rod-like handle 62 bent in a substantially square shape. The handle 62 is supported by a cylindrical handle support portion 63 fixed to the vertical portion 42a of the opposed frame portion 42 by welding or the like so as to be rotatable about the rotation center axis Y. The handle 62 has a length that does not interfere with the tractor 2, and can be gripped by an operator on the driver's seat of the tractor 2 while on the tractor 2.

  A restricting plate 65, which is a substantially rectangular plate-like restricting body that restricts the rotation of the tank 12 in the direction a with respect to the tank support frame 41, is fixed to the rear end portion of the handle 62. The restricting plate 65 restricts the rotation of the tank 12 only in the direction a with respect to the tank support frame 41 by the contact with the contact receiving portion 66 of the tank frame 46.

  The working state restriction means 61 is constituted by the handle 62 and the restriction plate 65 fixed to the handle 62. For example, although not shown, the working state restriction means 61 is configured such that the concave sandwiching portion formed on the restriction plate 65 sandwiches a part of the tank frame 46 from the front and rear, and the direction a and b of the tank 12 with respect to the tank support frame 41 The structure which controls the rotation of a direction all at once may be sufficient. With this configuration, it is not necessary for the damper 53 to be in the longest state when the tank 12 is in a horizontal state.

  6 and FIG. 7, when the working state restriction means 61 is in the restricted state, the restriction plate 65 comes into contact with the contact receiving portion 66 on the front side of the tank frame 46, and the tank 12 The rotation in the direction a with respect to the tank support frame 41 is restricted.

  At this time, the damper 53 is in the longest state (including the substantially longest state), and the rotation of the tank 12 in the b direction relative to the tank support frame 41 is restricted by the longest state damper 53. Therefore, the tank 12 is in a state in which the rotation in both the a direction and the b direction is restricted, and is locked (fixed) to the tank support frame 41. The vertical portion 42a of the opposed frame portion 42 is a stopper that restricts the rotation of the work state restriction means 61 by contact with the restriction plate 65 and sets the work state restriction means 61 to the restriction state. A stop plate 68 as a means is fixed by welding or the like.

  Further, as indicated by a two-dot chain line in FIG. 7, when the working state restricting means 61 is in the permitted state, the restricting plate 65 is separated from the position facing the contact receiving portion 66 of the tank frame 46, and the tank 12 The support frame 41 is allowed to turn in the direction a. That is, the tank 12 can rotate in the a direction and the b direction with respect to the tank support frame 41 within the extendable range of the damper 53 when the working state restriction means 61 is in an allowable state.

  Next, the operation and the like of the wrinkle coater 1 will be described.

  At the time of the glazing operation, as shown in FIG.

  At this time, the tank 12 in which water is stored is in a horizontal state in which the lower surface is positioned along a horizontal plane, and the tank support frame 41 is constituted by the restriction means 61 for working state in the restricted state and the damper 53 in the longest state. Is locked against. For this reason, shaking of the tank 12 containing water can be prevented.

  In this state, when the tractor 2 is caused to travel in the traveling direction, the entire coater 1 moves along the kite, and the banking means 22 and the kite forming means 23 are each driven to rotate in a predetermined direction.

  Then, the filling means 22 raises the soil for filling the glazing onto the base wall, and the raised filling is compacted by the heel side surface forming body 33 to form an inclined heel side surface, It is compacted at 34 to form a water-like ridge surface.

  At this time, the watering nozzle 38 sprays the water sent from the tank 12 toward the outer peripheral surface of the dredge side surface forming body 33, and the watering nozzle 39 draws the water sent from the tank 12 on the dredge upper surface forming body 34. Spray toward the outer surface. In this way, a strong new bag is formed which is repaired and is not easily destroyed.

  Then, for example, when the paintbrushing operation is completed and the coater 1 is transported to a predetermined position while being connected to the tractor 2, the work implement main body 11 is placed in an inclined non-working state as shown in FIG.

  At this time, an operator riding on the tractor 2 grips the handle 62 while riding on the tractor 2 before turning the working machine main body 11 by the operation of the three-point link unit 5 to put it into the tilt non-working state. Then, the working state restriction means 61 is rotated about 90 degrees about the rotation center axis Y to switch to the allowable state.

  For this reason, when the work implement main body 11 is rotated upward with respect to the tractor main body 4 by the operation of the three-point link portion 5, the tank support frame 41 rotates together with the work implement main body 11, but the tank 12 It does not rotate with the machine main body 11 but rotates in the direction a about the rotation center axis X with respect to the tank support frame 41 to maintain a horizontal state. At this time, the damper 53 reduces the rotational speed of the tank 12 in the direction a.

  In addition, according to such a coater 1, since the tank support frame 41 which is the tank support means 13 that rotatably supports the tank 12 so as to maintain the tank 12 in a horizontal state is provided, the work machine body 11 The tank 12 can be maintained in a horizontal state regardless of whether it is in a horizontal working state or a non-inclined state, and the tank 12 can be prevented from being inclined. Therefore, for example, the tank 12 can be prevented from tilting and the pressure of the water in the main body 48 acting on the lid portion 49 to damage the lid portion 49, and the tank 12 can be tilted to prevent the water in the main body portion 48 from flowing. Leakage from the air vent hole 50 can be prevented.

  Further, since the damper 53 serving as the speed reducing means 51 for reducing the rotational speed of the tank 12 is provided, the rotational speed of the tank 12 can be appropriately reduced.

  Further, the restriction plate (lock member) 65 of the working state restriction means 61 can appropriately restrict the rotation of the tank 12 when the working machine body 11 is in the horizontal working state. The tank 12 can be properly locked to the tank support frame 41 in cooperation with the damper 53 in the working state.

  In addition, when the working machine body 11 is not tilted, the tank 12 does not tilt and maintains a horizontal state. Therefore, the center of gravity of the tank 12 is on the tractor 2 side compared to the conventional case where the tank 12 is tilted. Therefore, the traveling of the tractor 2 can be stabilized.

  The working state restriction means 61 is not limited to the one having the handle 62 protruding toward the tractor 2 side, and may be, for example, the second embodiment shown in FIGS.

  The working state restriction means 61 is, for example, one restriction arm (locking member) which is a restriction body that can be selectively switched between a restricted state (locked state) and an allowed state (unlocked state) manually by an operator. It is composed of 71.

  The restriction arm 71 has a longitudinal arm portion 72, an upper cylindrical portion 73 provided at the upper end portion of the arm portion 72, and a lower cylindrical portion 74 provided at the lower end portion of the arm portion 72. ing.

  A left and right fulcrum pin 75 fixed to the horizontal portion 42b of the opposing frame portion 42 of the tank support frame 41 by welding or the like is rotatably inserted into the upper cylindrical portion 73 of the restriction arm 71. That is, the restriction arm 71 is rotatably supported by the fulcrum pin 75. Further, the fulcrum pin 75 has a collar portion 76 for preventing removal, and the upper cylindrical portion 73 can slide in the left-right direction along the fulcrum pin 75, but comes out of the fulcrum pin 75 by contact with the collar portion 76. There is no such thing.

  In addition, a regulation pin 81 is fixed to a predetermined portion of the tank frame 46 by welding or the like, and an allowance pin 82 is fixed to a predetermined portion of the vertical portion 42a of the opposing frame portion 42 of the tank support frame 41 by welding or the like. Yes.

  Then, as shown by the solid line in FIG. 9, when the working state restriction means 61 is in a restricted state, that is, when the restriction arm 71 is in a restricted state, a restriction pin 81 is inserted into the lower cylindrical portion 74 of the restriction arm 71. The restriction arm 71 restricts the rotation of the tank 12 in both the a direction and the b direction relative to the tank support frame 41, and the tank 12 is locked (fixed) to the tank support frame 41. .

  Further, as shown by a two-dot chain line in FIG. 9, when the working state restriction means 61 is in the permitted state, that is, when the restriction arm 71 is in the permitted state, the allowance pin 82 is inserted into the lower cylindrical portion 74 of the restriction arm 71. The tank 12 is allowed to rotate in both the a direction and the b direction with respect to the tank support frame 41. That is, the tank 12 can rotate in the a direction and the b direction with respect to the tank support frame 41 within the extendable range of the damper 53 when the working state restriction means 61 is in an allowable state. In the second embodiment, the same effects as those in the first embodiment can be obtained, such as preventing the tank 12 from being inclined.

  For example, although not shown, a configuration having a rotation driving means such as a motor for rotating the regulating plate 65 and the regulating arm 71 may be used.

  Further, for example, as in the third embodiment shown in FIG. 11 to FIG. 14, it is possible to selectively switch between a restricted state (locked state) and an allowed state (unlocked state), and the non-working state of the work implement body 11 Time (in a tilt non-working state), the rotation of the tank 12 in the b direction relative to the tank support frame 41 is restricted when switched to the restricted state, and the b direction of the tank 12 relative to the tank support frame 41 when switched to the permitted state. A configuration may also be provided that includes a non-working state restricting means 91 that permits rotation to the position.

  The non-working state restricting means 91 can be rotated by an operator on the driver's seat of the tractor 2 and can be selected between a restricted state (locked state) and an allowed state (unlocked state) by the turning operation. Can be switched automatically.

  This non-working state restricting means 91 has a rod-like handle 92 that is bent in a substantially square shape. The handle 92 is rotatably supported by a cylindrical handle support portion 93 fixed to the horizontal portion 42b of the opposed frame portion 42 by welding or the like. The handle 92 has a length that does not interfere with the tractor 2, and can be gripped by an operator on the driver's seat of the tractor 2 while riding.

  Further, a restricting plate 95, which is a substantially rectangular plate-like restricting body that restricts the rotation of the tank 12 in the b direction with respect to the tank support frame 41, is fixed to the rear end portion (lower end portion) of the handle 92. . The restricting plate 95 restricts the rotation of the tank 12 only in the b direction with respect to the tank support frame 41 by the contact with the contact receiving portion 66 of the tank frame 46.

  Further, a fixing pin 96 is fixed to an intermediate portion of the handle 92. A stepped portion 97 is formed at the upper end of the handle support portion 93. The stepped portion 97 includes a regulating receiving surface 98 with which the fixing pin 96 abuts when the regulating means 91 for the non-working state is in a regulated state, and a non-working state. And an acceptance receiving surface 99 with which the fixing pin 96 abuts when the hour restricting means 91 is in an acceptable state. Further, between the lower end surface of the handle support portion 93 and the restriction plate 95, a compression spring which is a biasing means for biasing the non-working state regulating means 91 downward and pressing the fixing pin 96 against the stepped portion 97. 100 is arranged.

  As shown in the solid line of FIG. 11 and FIGS. 13A and 13B, when the non-working state restricting means 91 is in the restricting state, the restricting plate 95 is in contact with the contact receiving portion 66 on the inner surface side of the tank frame 46. And the rotation of the tank 12 in the b direction relative to the tank support frame 41 is restricted.

  At this time, the damper 53 is in the most contracted state (including the substantially most contracted state), and the rotation of the tank 12 in the direction a with respect to the tank support frame 41 is restricted by the damper 53 in the most contracted state. Therefore, the tank 12 is in a state in which the rotation in both the a direction and the b direction is restricted, and is locked (fixed) to the tank support frame 41. Therefore, for example, when the working machine body 11 is in an inclined non-working state, the tank 12 can be appropriately locked to the tank support frame 41 by the cooperation of the non-working state regulating means 91 and the damper 53. The shaking of the tank 12 can be prevented.

  Further, as shown by the two-dot chain line in FIG. 11 and FIGS. 14A and 14B, the restriction plate 95 is connected to the contact receiving portion 66 of the tank frame 46 when the restriction means 91 for non-working state is allowed. The tank 12 is allowed to rotate in the direction b with respect to the tank support frame 41 away from the opposite position. In other words, when the non-working state restricting means 91 is in the allowable state, the tank 12 can rotate in the a direction and the b direction with respect to the tank support frame 41 within the extendable range of the damper 53. In the third embodiment, the same effects as those in the first embodiment can be achieved, such as preventing the tank 12 from being inclined.

  For example, although not shown, a configuration including both the working state restriction means 61 and the non-working state restriction means 91 may be employed.

  Further, the construction is not limited to the configuration in which the tank 12 is locked with respect to the tank support means 13 by the longest speed reduction means 51 and the work condition restriction means 61 when the work machine body 11 is in the work state. It may be configured that the tank 12 is locked to the tank support means 13 by restricting the rotation of the tank 12 only by the work state restriction means 61 in the restricted state when the work machine body 11 is in the work state.

  Further, the construction is limited to the configuration in which the tank 12 is locked to the tank support means 13 by the speed reduction means 51 in the most contracted state and the restriction means 91 in the non-working state in the restricted state when the work machine body 11 is not in the working state. For example, when the working machine body 11 is in a non-working state, the tank 12 may be locked to the tank support means 13 by restricting the rotation of the tank 12 only by the non-working state restriction means 91 in the restricted state. .

  Further, the tank support means 13 is not limited to one that supports the tank 12 so as to be rotatable about the rotation center axis X. For example, the tank 12 is omnidirectionally including a front, rear, left and right about a certain fulcrum. What supports so that rotation is possible may be sufficient.

  In addition, it is not limited to the plastering machine 1, For example, it can apply also to other types of farming machines, such as a ditching machine.

1 Agricultural coater that is a farmer 2 A tractor that is a traveling vehicle
11 Work implement body
12 tanks
13 Tank support means
23 Wrinkle formation means
24 Spraying means
51 Deceleration means
61 Regulatory means for working conditions
91 Regulations for non-working conditions

Claims (5)

A work machine body connected to the traveling vehicle;
A tank in which liquid is stored;
Tank support means provided in the work implement main body and rotatably supporting the tank so that the tank maintains a horizontal state;
Agricultural working machine you anda deceleration means for decelerating the rotational speed of the tank. A work machine body connected to the traveling vehicle;
A tank in which liquid is stored;
Tank support means provided in the work implement main body and rotatably supporting the tank so that the tank maintains a horizontal state;
Switchable selective regulatory state and allowing state, during the working state of the working machine main body, to restrict rotation of the tank and is switched to the regulated state, the rotation of the the switched permissive tank agricultural working machine you anda regulating means for when working conditions tolerated. A work machine body connected to the traveling vehicle;
A tank in which liquid is stored;
Tank support means provided in the work implement main body and rotatably supporting the tank so that the tank maintains a horizontal state;
Switchable selective regulatory state and allowing state in non-operation state of the working machine main body, to restrict rotation of the tank and is switched to the regulated state, rotation of the the switched permissive tank agricultural working machine you; and a non-working state when a regulating means for permitting. A work machine body connected to the traveling vehicle;
A tank in which liquid is stored;
Tank support means provided in the work implement main body and rotatably supporting the tank so that the tank maintains a horizontal state;
Switchable selective regulatory state and allowing state, during the working state of the working machine main body, to restrict rotation of the tank and is switched to the regulated state, the rotation of the the switched permissive tank Regulation means for working conditions to be allowed; and
The tank can be selectively switched between a restricted state and an allowable state. When the working machine body is in a non-working state, the rotation of the tank is restricted when the working machine body is switched to the restricted state, and the tank is rotated when the working machine body is switched to the permitted state. agricultural working machine you; and a non-working state when a regulating means for permitting. The work machine body
Wrinkle forming means for forming wrinkles;
The agricultural working machine according to any one of claims 1 to 4 , further comprising spraying means connected to the tank and spraying the liquid from the tank toward the basket forming means.

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