JP2005160405A - Riding type implement with fertilizing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a fertilizing device 20 to be strongly supported and to facilitate the operation of an operation clutch for few ridges of an operation device in a riding type implement having the fertilizing device 20 installed in the rear part of a self-propelled car body, and the operation device linked so as to be freely operated upward and downward. <P>SOLUTION: The riding type implement is constituted by standing a tank-supporting frame 63 constituted as a frame different from a fertilization-supporting frame 56 linked to a fertilizer-delivering structure 22 of the fertilizing device 20 on the car body. The tank-supporting frame 63 receives and supports the fertilizer tank 21 by bringing a main supporting frame 62 into contact with the fertilizer tank 21 from the front side of the car body. A clutch lever 87 for carrying out a switching operation of the operation clutch for the few ridges of the operation device is attached to a prop 61 of the tank-supporting frame 63. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is a fertilizer tank connected to a rear part of a self-propelled vehicle body so as to be movable up and down, and to supply fertilizer in the vicinity of a work location by a plurality of work mechanisms arranged in the lateral direction of the machine body of the work device, and The present invention relates to a riding type work machine with a fertilizer application device provided with a fertilizer supply device connected to the lower part of the fertilizer tank and provided at the rear part of the self-propelled vehicle body.

  Conventionally, as shown in Patent Document 1, for example, a seedling planting device 4 (corresponding to a working device) is connected to a rear portion of a traveling machine body 3 (corresponding to a self-propelled vehicle body) so as to be movable up and down. (Equivalent to a fertilizer tank), there was one in which a fertilizer application device 7 provided with a feeding mechanism 42 was mounted on a traveling machine body.

  In this type of work machine, conventionally, only the fertilizer support frame that is erected on the self-propelled vehicle body and configured so that the feeding mechanism is connected to the fertilizer is fixed to the self-propelled vehicle body. .

JP 2001-95322 A ([0024], [0038] columns, FIGS. 1, 4, 7)

  In this type of work machine, the fertilizer tank is positioned at a higher level than the feeding mechanism and becomes larger than the feeding mechanism. In addition, since the fertilizer tank is supported only by the feeding mechanism, the fertilizer tank is constructed as a sturdy tank so that it is firmly connected to the feeding mechanism, and the fertilizer tank is strong regardless of vibration and fertilizer weight. It was necessary to be supported by.

  In addition, in this type of work machine, a small number of work clutches for stopping a part of the work of a plurality of work mechanisms can be provided in the work device. A clutch lever for switching the small number of work clutches is provided. If it is provided in the direction of the self-propelled vehicle body rather than the working device, it is easy to operate from the driving part, but if it is provided with a support member dedicated to the clutch lever, it is disadvantageous in terms of structure.

  An object of the present invention is to enable a fertilizer tank to be firmly supported while being configured to be relatively light, and to further facilitate the switching operation of a small number of work clutches more easily from the operating section, and to advantageously obtain fertilizer. The object is to provide a riding-type working machine with a device.

In the first aspect of the invention, the working device is connected to the rear portion of the self-propelled vehicle body so as to be movable up and down, and the fertilizer is supplied to the vicinity of the work location by a plurality of working mechanisms arranged in the machine body lateral direction of the working device. A fertilizer tank, and a fertilizer applying a fertilizer feeding mechanism connected to a lower portion of the fertilizer tank, in a riding type work machine with a fertilizer provided at the rear part of the self-propelled vehicle body,
A tank support frame that contacts and receives the fertilizer tank from the front side of the vehicle body is erected on the self-propelled vehicle body in a state in which the tank support frame is configured separately from the fertilizer support frame to which the feeding mechanism is connected. A clutch lever for switching operation of a small number of work clutches for stopping a part of the work of the work mechanism is attached to the tank support frame.

  In other words, the tank support frame that comes into contact with and receives the fertilizer tank from the front side of the vehicle body is erected on the self-propelled vehicle body in a state where the tank support frame is configured separately from the fertilizer support frame connected to the feeding mechanism. The fertilizer tank is supported by being connected to the feeding mechanism, and is also supported from the front side by the tank support frame. As a result, even if the fertilizer tank is configured to be a relatively small tank such as a light weight, the fertilizer tank can be firmly supported such that it does not shake greatly regardless of vibration or fertilizer weight.

  Since the clutch lever is attached to the tank support frame, it is closer to the operating part than the fertilizer support frame, and the tank support frame is provided on the self-propelled aircraft using the lever support means. be able to. Further, when operating the clutch lever, an operation reaction force is applied to the clutch lever from the work device side, that is, from the rear side of the vehicle body, but the tank support frame comes into contact with the fertilizer tank from the front side of the vehicle body and the clutch lever is Since the clutch lever is supported, the clutch lever is firmly supported against an operation reaction force and is easy to operate.

  Therefore, according to the first aspect of the present invention, the fertilizer tank can be constructed as a relatively light tank, which can be advantageously obtained in terms of weight and economy. In addition, since the clutch lever is closer to the driving unit and is easy to operate from the driving unit, and the clutch lever is firmly supported against the operating reaction force, the clutch lever can be operated easily and smoothly for a small number of items. The working clutch can be switched smoothly. In addition, the tank support frame can be advantageously obtained in terms of structure and economy by using the lever support means as a lever support means.

  According to the second aspect of the present invention, in the configuration of the first aspect of the present invention, a clutch sensor is provided for detecting that the minority work clutch is in a disengaged state.

  That is, since the clutch sensor detects that the small number of work clutches are in the disengaged state, the detection result can be easily used, for example, by operating the alarm device based on this detection result.

  Therefore, according to the second aspect of the present invention, it is possible to easily take measures such as alarming that the minority work clutch is disengaged and preventing forgetting to put back the clutch.

  In the third invention, in the configuration of the first or second invention, the plurality of working mechanisms are seeding mechanisms.

  That is, the working mechanism is a sowing mechanism, and the working device performs the sowing work.

  Therefore, according to the third aspect of the invention, what can perform the sowing work and the fertilization work in parallel can be advantageously obtained on the support surface of the fertilizer tank and the operation surface of the small number of work clutches.

[First Embodiment]
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a pair of left and right front wheels 1 that can be steered and a pair of left and right rear wheels 2 are driven by power from an engine 3 of the prime mover and are self-propelled, and the prime mover A paddy field direct sowing apparatus 10 is connected to the rear part of a body frame 5 of a self-propelled vehicle body equipped with a boarding type driving unit equipped with a driver seat 4 located behind the vehicle via a link mechanism 7 having a lift cylinder 6. The power from the engine 3 is configured to be transmitted to the paddy direct seeding device 10 by the rotary transmission shaft 8, and a fertilizer device 20 with a fertilizer tank 21 is provided on the rear side of the driver's seat 4 of the self-propelled vehicle body. A riding direct sowing machine with a fertilizer application is constructed.

  This direct sowing machine performs an operation of sowing rice seeds in paddy fields and an operation of supplying fertilizer. When the lift cylinder 6 is driven and operated, the lift cylinder 6 causes the link mechanism 7 to move against the self-propelled vehicle body. By swinging up and down, the paddy field direct sowing apparatus 10 is moved up and down into a descending action state in which the leveling float 11 contacts the surface of the paddy field and an ascending non-working state in which the leveling float 11 floats high from the field surface. When the paddy field direct sowing apparatus 10 is moved down and the self-propelled vehicle is driven, the paddy field direct seeding machine 10 seeds a plurality of seed pods on the field, and the fertilizer application 20 near the lateral sides of the plurality of seeds in the field. The fertilizer is supplied to the plant, and the details are as follows.

  As shown in FIG. 2, the paddy direct sowing apparatus 10 includes a main frame 12 made of a square steel pipe extending in the transverse direction of the machine body, a support frame 13 facing the machine body in the middle and connected to the main frame 12, and the main frame 12. A machine frame composed of a seeding mechanism support 14 and the like connected to the lower end side, a plurality of seed tanks 15 arranged in the horizontal direction of the machine body on the upper part of the machine frame, and a lower part of one seed tank 15 as shown in FIG. A plurality of seeding mechanisms 16 that are connected two by two and arranged in the horizontal direction of the machine body, a seeding hose 17 that extends downward from the seed feeding part of each seeding mechanism 16, and an extended end part of each seeding hose 17 Groove seeder 18 connected to the bottom of the machine frame, the plurality of leveling floats 11 mounted side by side in the horizontal direction of the machine body, and the bottom side of the rear part of the leveling float 11 Comprises a soil cover member 19 mounted are constituted.

  The plurality of grooving seeders 18 are attached to the leveling float 11 so that they are arranged in a line in the horizontal direction of the body of the paddy field direct seeding device 10 and two are connected to one leveling float 11. It is.

  As shown in FIG. 3, each seeding mechanism 16 includes a feeding case 16a whose upper end is connected to a lower funnel portion of the seed tank 15, and a feeding roll that is rotatably provided in the feeding case 16a. 16b is provided.

  As shown in FIGS. 2 and 3, the two sowing mechanisms 16, 16 connected to one seed tank 15 are regarded as one sowing mechanism group, and two sowing mechanisms 16, 16 of each sowing mechanism group are arranged. The feed roll 16b is configured to be rotationally driven by a roll drive shaft 30 formed of a single hexagonal shaft that is transverse to the machine roll for both the feed rolls 16b. A one-side rotating clutch connected to the interlocking shaft 33, an interlocking shaft 33 composed of a single hexagonal shaft that is linked to the drive shaft 30 via a gear interlocking mechanism 32 having a clutch gear 31; An interlocking mechanism including an interlocking rod 35 whose upper end is connected to the input arm 34 of the one-way rotation clutch, a crank mechanism connected to the lower end of the interlocking rod 35, and the like. It is in conjunction with the rotation transmission shaft 8 through 6.

That is, the paddy field direct sowing apparatus 10 performs sowing work as follows.
In other words, the roll drive shaft 30 of each sowing mechanism group is driven by the driving force transmitted from the rotary transmission shaft 8 through the interlocking mechanism 36, and the feed roll 16 b is rotated by the roll drive shaft 30 in each sowing mechanism 16. The seed rolls are driven by the feed roll 16b, and the seed pods are taken out from the seed tank 15 by a set amount determined by the volume of the feed recess on the peripheral surface of the roll 16b and supplied to the sowing hose 17. A seeding ditch is formed in the field mud after the leveling of the soil, and the seed dredging from the sowing hose 17 is supplied to the sowing ditch, and the sowing ditch is scraped back to the sowing ditch by the covering tool 19 to fill the sowing ditch. Go.

  As shown in FIGS. 1 and 5, the fertilizer application device 20 is arranged behind the driver seat 4 in the lateral direction of the self-propelled vehicle body in the one fertilizer tank 21 that is long in the lateral direction of the self-propelled vehicle body. A plurality of fertilizer feed mechanisms 22 connected, a single blow pipe 23 along the lateral direction of the vehicle body located on the vehicle body front side of each feed mechanism 22, and an electric blower connected to one end side of the blow pipe 23 24 is provided.

  Each of the fertilizer feeding mechanisms 22 includes one feeding case 22a and a pair of feeding rolls 22b that are rotatably arranged side by side in the lateral direction of the vehicle body inside the feeding case 22a, and the pair of feeding rolls 22b. Are rotated and driven, and a pair of fertilizers located at the rear side of the vehicle body at the lower part of the feeding case 22a by a set amount determined by the volume of the feeding recess on the circumferential surface of the feeding roll. It is configured to feed out to the corresponding one of the discharge ports.

  As shown in FIGS. 5 and 6, the pair of feeding rolls 22b and 22b of each fertilizer feeding mechanism 22 is driven to rotate in conjunction with a single roll drive shaft 40 shared by both feeding rolls 22b. The roll drive shaft 40 of each fertilizer feeding mechanism 22 is configured by a hexagonal shaft that is laterally directed to the vehicle body and is linked to all the roll drive shafts 40 via a gear interlocking mechanism 42 having clutch gears 41. A transmission shaft 43, a pair of one-way rotation clutches 44 attached to the transmission shaft 43, a link mechanism for interlocking input rotary bodies of the pair of one-way rotation clutches 44, and an input of one one-way rotation clutch 44 As shown in FIG. 1, the rear wheel transmission is performed via an interlocking mechanism 45 having an interlocking rod 45 connected to the arm 44a and a crank mechanism to which the interlocking rod 45 is connected. It is interlocked with the output portion of the power take-off mechanism 48 attached to the moving shaft 47.

  Of the plurality of fertilizer feeding mechanisms 22 of the fertilizer application 20, two fertilizer discharge ports of the fertilizer feeding mechanism 22 located on the leftmost lateral outer side and the right lateral outer side of the vehicle body, and the pair of laterally fertilizer feeding mechanisms A plurality of grooving fertilizers 26 connected to either one of the two fertilizer discharge ports of the fertilizer feed mechanism 22 located on the inner side of the vehicle body 22 through the fertilizer hose 25 are connected to one of the paddy seeding devices 10. These are arranged so as to be positioned one by one near the lateral side of the grooving seeder 18 and attached to the leveling float 11.

That is, the fertilizer application 20 is adapted to perform fertilization work as follows.
That is, each roll drive shaft 40 is driven by the driving force transmitted from the rear wheel transmission shaft 47 via the power take-out mechanism 48 and the interlocking mechanism 46, and in each fertilizer feed mechanism 22, the pair of feed rolls 22 b is moved to the roll drive shaft. 40, the fertilizer is fed from the fertilizer tank 21 to the fertilizer outlet by the feeding rolls 22b, and the fertilizer conveying wind generated by the electric blower 24 is sent to the fertilizer feeding mechanism 22 by the blower pipe 23. The fertilizer from the fertilizer feeding mechanism 22 is supplied to the fertilizer hose 25 by the fertilizer conveying wind from the electric blower 24, and each grooving fertilizer 26 is used to groat the field mud. A fertilizer groove is formed in the vicinity of the lateral side of the sowing site by No. 18, and fertilizer from the fertilizer hose 25 is supplied to the fertilizer groove. Ku.

The fertilizer application 20 is attached to the self-propelled vehicle body by the attachment structure shown in FIGS.
That is, a pair of left and right support columns 52 erected on a pair of left and right sheet metal step support frames 51 positioned so as to support a rear wheel fender working step 50 at the rear of the body frame 5, The fertilization support frame 56 is formed by a horizontal fertilization main frame 53 connected across the upper ends of the support columns 52, a feeding mechanism connection frame 54 formed of a bent strip metal plate connected to a plurality of portions of the fertilization main frame 53 arranged in the horizontal direction of the vehicle. The fertilizer feed mechanism 22 is fitted into the assembly holes 55 formed by the feed mechanism connecting frame 54 and the fertilizer main frame 53 at a plurality of locations in the vehicle body lateral direction of the fertilizer support frame 56 one by one. 22 feed cases 22a are bolted to the feed mechanism connecting frame 54.

  Further, as shown in FIGS. 5 and 7, a pair of left and right columns 61 erected on a pipe step support frame 60 positioned so as to support the work step 50 at the rear of the body frame 5, The main support frame 62 made of a horizontal pipe member that is connected to the upper ends of the support pillars 61 is formed separately from the fertilization support frame 56 so as to be connected to the vehicle body frame 5 on the front side of the fertilizer support frame 56. A tank support frame 63 that is erected is formed, and side support portions 62 a that are provided by attaching rubber cushion materials to the front and rear ends of the main support frame 62 of the tank support frame 63 are provided as side walls of the fertilizer tank 21. The center support portion 62b, which is a laterally facing portion of the main support frame 62, is brought into contact with the front wall of the fertilizer tank 21. By contact from the front side of the vehicle body and, it is so as to support receiving the fertilizer tank 21 by the main support frame 62 of the tank support frame 63.

  The left and right struts 61 of the tank support frame 63 and the fertilization main frame 53 of the fertilization support frame 56 are connected by a connecting member 64 facing the front and rear of the vehicle body.

As shown in FIG. 3, a plurality of small-number seed sowing clutches 70 are provided on the interlocking shaft 33 of the paddy field direct seeding device 10.
As shown in FIG. 4, each minority seed sowing clutch 70 is externally fitted to the interlocking shaft 33 via a bush 71 so as to be relatively rotatable. The interlocking shaft gear 72 of the gear interlocking mechanism 32 and the hexagon of the interlocking shaft 33 are provided. The clutch gear 31 that is externally fitted to the interlocking shaft 33 in a state of being integrally rotated and slidable with respect to the interlocking shaft 33 because of its shape, and the input clutch protrusion of the interlocking shaft gear 72. A clutch spring 73 that is slidably biased so as to engage with 72a is provided.

  That is, the operation arm 74 engaged with the clutch gear 31 so as to be capable of relative rotation and sliding operation with a pair of locking pins 74a is swung with respect to the support bracket 75 around the axis of the arm support shaft 76. When the clutch gear 31 is slid toward the interlocking shaft gear 72 and engaged with the input clutch protrusion 72a of the interlocking shaft gear 72 due to the operation force of the clutch spring 73, the minority seeding clutch is operated. 70 enters the clutch-engaged state so as to transmit the driving force to the roll driving shaft 30 of one seeding mechanism group by transmitting the driving force of the interlocking shaft 33 to the interlocking shaft gear 72 via the clutch gear 31. Then, the sowing operation is performed by the two sowing mechanisms 16 of the sowing mechanism group. When the clutch gear 31 is slid in the direction away from the interlocking shaft gear 72 due to the operating force of the operating arm 74 and is released from the input clutch protrusion 72a of the interlocking shaft gear 72, the minority seeding clutch 70 is moved to the interlocking shaft. By turning off the transmission to the interlocking shaft gear 72 from 33, the clutch is disengaged so as to cut off the transmission to the roll drive shaft 30, and the sowing operation by the two sowing mechanisms 16 of the sowing mechanism group is stopped. .

As shown in FIG. 6, a plurality of minority fertilization clutches 80 are provided on the transmission shaft 43 of the fertilizer application device 20.
Each of the minority fertilization clutches 80 is integrally rotated with respect to the transmission shaft 43 because of the hexagonal shape of the roll shaft gear 81 and the transmission shaft 43 of the gear interlocking mechanism 42 provided to the roll drive shaft 40 so as to be integrally rotatable. The clutch gear 41 that is externally fitted to the transmission shaft 43 in a slidably engaged state, a clutch spring 82 that is slidably biased so that the clutch gear 41 is engaged with the roll shaft gear 81, and the like. It is configured with.

  In other words, the operation arm 83 engaged with the clutch gear 41 so as to be freely rotatable and slidable relative to the fork portion is operated to swing, and the clutch gear 41 is driven by the clutch spring 82 due to the operation force of the roll shaft gear 81. The small-number fertilizer application clutch 80 transmits the driving force of the transmission shaft 43 to the roll shaft gear 81 by the clutch gear 41 when the roll shaft gear 81 is meshed with the roll shaft gear 81. The clutch is engaged so as to transmit driving force to the drive shaft 40, and fertilizer is supplied by the two fertilizer feed mechanisms 22 sharing the one roll drive shaft 40. When the clutch gear 41 is disengaged from the roll shaft gear 81 due to the operating force by the operation arm 83, the minority fertilization clutch 80 is disconnected from the roll drive shaft 40 by cutting off the transmission from the transmission shaft 43 to the roll shaft gear 81. The clutch is disengaged so as to cut off the transmission, and the fertilizer supply by the two fertilizer feeding mechanisms 22 is stopped.

  As shown in FIGS. 5 and 6, an inner cable 86a having one end connected to the operation arm 74 with respect to the operation arm 74 of the plurality of small-number seed sowing clutches 70 of the paddy seeding device 10, and the inner cable 86a. A plurality of clutch levers 87, each of which is interlocked by an operation cable 86 including an outer cable 86b that is slidably inserted inside, are fixed to the left column 61 of the tank support frame 63. The lever support shaft portion 61a provided and the lever support shaft portion 61a provided with the support shaft fixed to the right column 61 are distributed around the axis of the lever support shaft portion 61a in the lateral direction of the vehicle body. It is supported so that it can swing up and down.

  Outer cable of the operation cable 86 for the small number seed sowing clutch 70 of one of the plurality of sowing mechanism groups of the paddy seeding device 10 that is located on the outermost left side of the body and the outermost right side of the body. A plurality of fertilizer feed mechanisms 22 of the fertilizer application device 20 are connected to an interlocking link 88 that is connected to the fertilizer main frame 53 of the fertilizer support frame 56 and is connected to an end of the clutch lever side of 86b. Among them, the one located most on the left lateral outer side of the vehicle body and the one located most laterally on the right lateral side of the vehicle body are interlocked by an interlocking rod 89 with respect to the operation arm 83 of one minority fertilization clutch 80. Outer cable of the operation cable 86 for the minority sowing clutch 70 of the other one of the plurality of sowing mechanism groups of the paddy seeding device 10 that is located on the outermost left side of the aircraft and the outermost right side of the aircraft. 86 b of the clutch lever side end of the fertilizer feeding mechanism 22 of the fertilizer application device 20 is located at the leftmost lateral outer side of the vehicle body and the other minority fertilization clutch at the outermost right side of the vehicle body. It is connected to 80 operation arms 83. Among the plurality of seeding mechanism groups of the paddy seeding device 10, the one located on the outermost left side of the body and the one located on the inner side of the body than the one located on the outermost right side of the body, The end portion on the clutch lever side of the outer cable 86b of the operation cable 86 is located on the leftmost outer side of the vehicle body among the plurality of fertilizer feeding mechanisms 22 of the fertilizer application device 20 or on the outermost right side of the vehicle body. It is connected to the operation arm 83 of the minority fertilization clutch 80 that is located on the inner side of the vehicle body than the one to be operated. It is allowed.

That is, among the plurality of seeding by the paddy seeding device 10, when working while stopping the two seeding on the left outer side of the left side of the machine body, of the plurality of clutch levers 87 arranged in the lateral direction of the vehicle body, When the clutch lever 87 located on the laterally outer side is operated while stopping the sowing of the two strips on the right lateral outer side of the aircraft among the plural strips of seeding by the paddy seeding device 10, a plurality of clutches arranged in the lateral direction of the vehicle body Of the levers 87, when the clutch lever 87 located on the outermost right side of the vehicle body is operated while stopping the sowing of the two strips on the inner side of the aircraft, the vehicle body of the plurality of clutch levers 87 arranged in the vehicle body lateral direction is selected. The clutch lever 87 located inside is swung up and down around the axis of the lever support shaft portion 61a to turn it off as shown in FIG. The Chireba 87 keep operating to enter the position ON shown in FIG.
Then, one of the few seed sowing clutches 70 out of the plurality of sowing seeds is turned off, and the sowing operation by the sowing mechanism 16 corresponding to the two seeds that are desired to stop sowing of the plurality of sowing mechanisms 16 is stopped. And sowing by the seeding mechanism 16 other than the one corresponding to two of the plurality of seeding mechanisms 16 in which the other minority seeding clutch 70 of the plurality of seeding seeding clutches 70 enters the engaged state. Let the work run. At the same time, two fertilizer feeds corresponding to the two strips of the plurality of fertilizer feed mechanisms 22 in which one of the few fertilizer feed clutches 80 of the plurality of the few fertilizer feed clutches 80 is in the disengaged state is desired. The fertilization work by the mechanism 22 is stopped, and the other minority fertilization clutch 80 out of the plurality of minority fertilization clutches 80 enters the state and corresponds to two strips in the plural fertilizer feed-out mechanisms 22 that desire to stop sowing. The fertilizer application | work by the fertilizer delivery mechanism 22 other than a thing is performed. Thereby, seeding and fertilization of a small number of seeds to be sowed and fertilized while stopping sowing and fertilization of a part of the desired two or four of the plurality of rows that can be seeded and fertilized by the paddy seeding device 10 and the fertilizer device 20 Can work.

As shown in FIG. 4, a clutch sensor 95 is provided on a bracket 75 that supports an operation arm 74 of each of the small-number seed sowing clutch 70 of the paddy seeding device 10. Each clutch sensor 95 is formed of a detection switch, and is pressed by the switch operating portion 74b of the operation arm 74 that is operated to switch the small-number sowing clutch 70 to the disengaged state, and is switched from off to on, thereby It is configured to detect that 70 is in the cut state and to output the detection result to the control means 96. When the control means 96 inputs the detection result of clutch disengagement from at least one clutch sensor 95 of the plurality of clutch sensors 95, a marker as an alarm device located at the front of the self-propelled vehicle body based on this detection information. The lamp 97 is configured to blink.
That is, when at least one of the plurality of small-number seed sowing clutches 70 is switched to the disengaged state, the marker lamp 97 blinks and an alarm is given.

[Second Embodiment]
FIG. 8 shows a riding type work machine with a fertilizer device provided with the second embodiment. In this work machine, a pair of left and right steering operations and drive are possible as in the self-propelled vehicle body of the first embodiment. A self-propelled vehicle body including a front wheel 1, a pair of right and left driveable rear wheels 2, a driving unit having an engine 3, a boarding type driving unit having a driving seat 4, and a fertilizer device 20 located behind the driving seat 4 The seedling planting device 100 is connected to the rear portion of the body frame 5 via a link mechanism 7 having a lift cylinder 6, and the power from the engine 3 is transmitted to the seedling planting device 100 through the rotary transmission shaft 8. It is constituted as follows.

  This work machine performs the work of planting rice seedlings in paddy fields and the work of supplying fertilizer. When the lift cylinder 6 is operated, the lift cylinder 6 moves the link mechanism 7 up and down with respect to the self-propelled vehicle body. By swinging, the seedling planting apparatus 100 is moved up and down into a descending action state in which the leveling float 101 contacts the surface of the field and an ascending non-working state in which the leveling float 101 floats high from the field. When the seedling planting device 100 is lowered and the self-propelled vehicle is driven, a plurality of seedling planting mechanisms 102 arranged in the lateral direction of the body of the seedling planting device 100 are planted by the seedling planting mechanism 102. A block of seedlings is cut out from the mat-like seedlings placed on the seedling stage 103 that is reciprocated in the horizontal direction in conjunction with the movement, taken out and planted in the field mud prepared by the leveling float 101. Then, the fertilizer application device 20 supplies the fertilizer to the vicinity of the lateral sides of the plurality of seedling planting locations in the field.

  The fertilizer application device 20 of this working machine is configured in the same manner as the fertilizer application device 20 of the direct seeding machine of the first embodiment.

The seedling planting device 100 is provided with a plurality of small-number planting clutches 105 arranged inside a planting transmission case 104. Each minority row planting clutch 105 turns on and off the transmission to the corresponding two seedling planting mechanisms 102 among the plurality of seedling planting mechanisms 102, so that the seedling planting work by the two seedling planting mechanisms 102 is performed. Is stopped or executed.
Each minority planting clutch 105 is a plurality of minority fertilization clutches of the fertilizer application 20 by a clutch lever 87 attached to the tank support frame 63 of the fertilizer application device 20 as in the clutch operating device of the direct seeding machine of the first embodiment. 80 is configured to be operated in conjunction with a corresponding minority fertilization clutch 80.

Overall side view of riding direct sowing machine with fertilizer Side view of paddy direct sowing equipment Rear view of sowing mechanism Cross section of a small number of seeding clutch Side view of part of fertilizer applicator Plan view of the operation system of a small number of sowing clutch Front view of tank support frame Overall side view of riding rice transplanter with fertilizer application

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,100 Working device 16,102 Working mechanism 20 Fertilizer 21 Fertilizer tank 22 Fertilizer feeding mechanism 56 Fertilizer support frame 63 Tank support frame 80, 105 Minority work clutch 87 Clutch lever 95 Clutch sensor

Claims (3)

A work device is connected to the rear part of the self-propelled vehicle body so as to be movable up and down, and a fertilizer tank and a fertilizer tank are provided so as to supply fertilizer near a work location by a plurality of work mechanisms arranged in the lateral direction of the machine body of the work device. A fertilizer applicator provided with a fertilizer feed mechanism connected to the lower part is a riding-type work machine with a fertilizer applicator provided at the rear part of the self-propelled vehicle body,
A tank support frame that contacts and receives the fertilizer tank from the front side of the vehicle body is erected on the self-propelled vehicle body in a state in which the tank support frame is configured separately from the fertilizer support frame to which the feeding mechanism is connected. A riding type work machine with a fertilizer device, wherein a clutch lever for switching a small number of work clutches for stopping a part of work of a work mechanism is attached to the tank support frame.   The riding type work machine with a fertilizer application device according to claim 1, further comprising a clutch sensor that detects that the small number of work clutches are in a disengaged state.   The riding type working machine with a fertilizer application device according to claim 1 or 2, wherein the plurality of working mechanisms are seeding mechanisms.

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