JP4107588B2 - Riding type rice transplanter with fertilizer - Google Patents

Description

  The present invention is such that a seedling planting device is connected to a rear portion of a self-propelled vehicle body through a link mechanism so as to be movable up and down, and a fertilizer tank and the fertilizer tank are fed out and supplied to the seedling planting device. The present invention relates to a riding type rice transplanter with a fertilizer provided with a fertilizer provided with a feeding mechanism connected to a lower portion of the self-propelled vehicle body on the rear side of a driver seat.

  In the above-mentioned riding type rice transplanter, conventionally, as shown in Patent Document 1, for example, a rotating plate 101 fixed to the front surface of a feeding case 38 (corresponding to a feeding mechanism) and a bracket 100 fixed to a front lateral frame 48 are provided. The hopper 37 (corresponding to a fertilizer tank) and the feeding case 38 are connected to each other via a fulcrum shaft 102, the feeding case 38 is connected to the bottom lid 54, and the feeding case 38 is connected to the bottom lid 54. In some cases, it is possible to switch to a state of being pivoted forward about the fulcrum shaft 102.

JP 2002-119109 A ([0023] column, FIG. 9)

  In the rice transplanter, it may be necessary to check or repair the feeding mechanism and attached devices. If the fertilizer is installed using the above-mentioned conventional technology, the feeding mechanism operates against the fertilizer tank even if the fertilizer tank is laid down and the upper cover of the feeding mechanism by the fertilizer tank is released as much as possible. Due to the fertilizer tank located between the driver's seat and the payout mechanism, it becomes difficult to reach the payout mechanism from the driver or the payout mechanism from the driver. May be difficult to see and maintenance work may be difficult.

  An object of the present invention is to provide a riding type rice transplanter with a fertilizer device that can easily perform maintenance work, while attaching a fertilizer tank and a feeding mechanism in a swingable manner.

In the first invention, the seedling planting device is connected to the rear part of the self-propelled vehicle body via a link mechanism so as to be movable up and down, and the fertilizer tank and the fertilizer in this fertilizer tank are fed out and supplied to the seedling planting device. In a riding type rice transplanter with a fertilizer provided with a fertilizer provided with a feeding mechanism connected to the lower part of the fertilizer tank, on the rear side of the driver's seat of the self-propelled vehicle body,
The fertilizer tank and the feed mechanism are connected together so as to be swingable in the longitudinal direction of the vehicle body integrally around a lateral axis of the vehicle body, and the fertilizer is erected in a state where the fertilizer tank and the feed mechanism are aligned in the vertical direction of the vehicle body, The tank is configured to switch from the standing installation state to the vehicle body rear side, and the feeding mechanism is switched to the lodging installation state that has fallen into a state of projecting forward from the fertilizer tank to the vehicle body,
The feed case of the feed mechanism is configured to be freely divided into an upper case portion connected to the fertilizer tank and a lower case portion having a feed port for supplying fertilizer to the seedling planting device,
The lower case portion is connected to the upper case portion so as to be swingable openable and closable around another horizontal axis on the same vehicle rear side as the side on which the horizontal axis on the vehicle rear side is provided,
When the seedling planting device is in the lift non-working state, the fertilizer tank and the payout mechanism are allowed to switch to the lying down mounting state, and when the seedling planting device is in the descending work state, the fertilizer tank and the Checking means for preventing the feeding mechanism from switching to the above-described lying down attachment state is provided .

In other words, if the fertilizer tank and the feed mechanism are switched to the overturned mounting state, the feed mechanism will protrude from the fertilizer tank toward the front of the vehicle body, and the upper cover of the feed mechanism by the fertilizer tank will be released as much as possible. Therefore, the fertilizer tank is located on the opposite side of the feeding mechanism from the side where the driver's seat is located, so that it becomes difficult to handle or view the feeding mechanism from the driver.
The fertilizer tank and feeding mechanism can be inspected and repaired in the overlaid state, and the inside of the feeding mechanism is separated by separating the overlaid case into an upper case part and a lower case part. It is easier to check and repair the interior by opening the door.
In addition, when the fertilizer tank and the feeding mechanism are switched to the inclining attachment state, a situation occurs in which the fertilizer hose that is extended from the feeding mechanism so as to supply fertilizer to the seedling planting device is drawn toward the self-propelled vehicle body. For this reason, when the length of the supply path for supplying fertilizer from the feeding mechanism to the seedling planting device is shortened as much as possible during the work, the fertilizer tank and the feeding mechanism are mounted in a sloping manner until the seedling planting device is lowered. When the state is switched, the fertilizer hose is likely to be deformed or disconnected. In this type of rice transplanter, if the seedling planting device is raised to the non-working state, it will be closer to the self-propelled vehicle than when it is lowered to the lowering working state. However, if the seedling planting device is raised to the non-working state, the fertilizer tank and the feeding mechanism are placed in the overturned attachment state while preventing the fertilization hose from being deformed or detached. Can be switched.
In the first invention, when the seedling planting device is in the descending work state, it is prevented to switch the fertilizer tank and the feeding mechanism to the overturned mounting state for the restraining means, and when the seedling planting device is in the ascending non-working state, Since it is allowed to switch the fertilizer tank and the feeding mechanism to the overlaid mounting state, maintenance work can be performed even if the fertilizer is fed from the fertilizer feeding device to the seedling planting device through the supply path as short as possible. When performing, it is possible to switch the fertilizer tank and the feeding mechanism to the overturned attachment state while raising the seedling planting device to the raised non-working state and making it difficult for the fertilizer hose to be deformed or detached.

Therefore, according to the first aspect of the present invention, the fertilizer tank and the feeding mechanism can be rocked up and down to easily switch between the upright mounting state as the working state and the overlaid mounting state as the maintenance state. When performing maintenance work, the upper cover of the feed mechanism with the fertilizer tank is released as much as possible to make it easier to work, and the fertilizer tank is less likely to become an obstacle, making the feed mechanism easy to handle and easy to see from the operating section, and efficient. Can work.
In addition, the fertilizer tank and the feed mechanism can be switched to the overlaid state so that the feed mechanism can be easily handled from the operating section and maintenance work can be performed efficiently, and the inside of the feed case is also opened to perform internal maintenance. Work can be done efficiently.
Furthermore, according to the first aspect of the present invention, the fertilizer tank and the feed mechanism can be switched to the overturned attachment state while the fertilizer can be fed quickly and smoothly from the fertilizer feeding device to the seedling planting device as quickly as possible during the work. Therefore, it is possible to carry out the maintenance work while making it difficult for the fertilizer hose to be deformed or detached.

  In this 2nd invention, in the structure of this 1st invention, the ventilation pipe which supplies a fertilizer conveyance wind to the said delivery mechanism, and the air blower which supplies a fertilizer conveyance wind to this ventilation pipe, The said fertilizer tank and said It is connected to the feeding mechanism so as to be swingable integrally.

  In other words, if the blower tube and the blower are separated to enable the fertilizer tank and the feed mechanism to swing up and down, the separation work is required. On the other hand, since the blower pipe and the blower device are connected to the fertilizer tank and the feed mechanism so as to be swingable integrally, the fertilizer tank and the feed mechanism are undulated without having to separate the blower pipe and the blower device. Can be moved.

  Therefore, according to the second aspect of the invention, while performing fertilization work using the fertilizer conveying wind, when performing the maintenance work, it is possible to easily handle the feeding mechanism from the operating unit and efficiently work to see it. In addition to being able to do this, it is not necessary to take the trouble of removing the blower tube or the blower, and the work can be efficiently performed from this aspect.

In the third invention , in the configuration of the first or second invention, an air intake duct extending from an air inlet of the air blower is provided so that the air blower sucks air heated by engine exhaust heat, The air intake duct is supported by a self-propelled vehicle body, and a flexible duct that connects the air intake duct and the air intake port of the blower is provided.

  That is, it is possible to cause the air blower to suck high-temperature air while supporting the intake duct on the self-running vehicle body and supporting the intake duct firmly so as not to vibrate. When the fertilizer tank and the feeding mechanism are rocked up and down, even if the intake duct and the blower device remain connected, the flexible duct can be bent and rocked.

Therefore, according to the third aspect of the present invention , the air heated by the engine exhaust heat can be sucked into the blower so that the high-temperature fertilizer conveying wind can be used, and the intake duct is strong enough not to vibrate. However, the maintenance work can be efficiently performed by swinging the fertilizer tank and the feeding mechanism up and down without taking the trouble of separating the intake duct.

According to the fourth aspect of the present invention , in any one of the first to third aspects of the invention, the fertilizer tank and the feeding mechanism can be switched between a locked state in which the fallen attachment state is fixed and a lock released state. Locking means are provided.

  In other words, the fertilizer tank and feed mechanism that have been switched to the overturned attachment state are fixed in the overturned attachment state by the lock means, and maintained in the overlaid attachment state without taking the trouble of supporting the change from the overlaid attachment state to the standing attachment state. Maintenance work can be performed.

Therefore, according to the fourth aspect of the present invention, it is possible to easily perform the maintenance work without requiring the trouble of holding the fertilizer tank and the feeding mechanism in the overlaid state.

In the fifth aspect of the present invention , in any one of the first to fourth aspects of the present invention , a working step is provided on a lateral side of the driver seat, and the fertilizer tank and the feeding mechanism are in the upright attachment state. The attachment device of the feeding mechanism is configured to be separated upward from the work step by switching to the above-described lying down attachment state.

  That is, when the fertilizer tank and the feeding mechanism are switched to the overturned attachment state, the attachment device of the feeding mechanism is separated upward from the work step, and a space for detaching the work step can be secured below the attachment device. Is.

Therefore, according to the fifth aspect of the invention , when exchanging the work steps, the space for attaching and detaching can be secured by switching the fertilizer tank and the feeding mechanism to the overlaid mounting state, and the labor for removing the feeding mechanism and the attached device is not required. It is easy and efficient to remove and install.

In the sixth aspect of the present invention , in any one of the first to fifth aspects of the present invention , the driver's seat is swingably switchable between an ascending storage position and a descending use position, and the fertilizer If the tank and the payout mechanism are in the above-described fall-attached state, they are attached in a state in which they do not descend to the lowered use posture by abutting against the payout mechanism or its attached device.

  In other words, if the fertilizer tank and the feeding mechanism remain in the overlying state, the driving seat will come into contact with the feeding mechanism or its attached device even if the driver's seat is switched from the raised storage position to the lowered position. It does not switch to. Thus, unless the fertilizer tank and the feeding mechanism are returned to the upright attachment state, the driver's seat cannot be returned to the lowered use posture and cannot be driven.

Therefore, according to the sixth aspect of the present invention , it is possible to prevent the work from being performed while the fertilizer tank and the feeding mechanism are in the overlaid state, and the structure can be easily obtained by using the driver's seat as the notification means.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a pair of left and right front wheels 1 and a pair of left and right rear wheels 2 are driven by power from an engine (not shown) located in a prime mover 3 and are automatically driven. A seedling is connected to the rear part of the body frame 5 of the self-propelled vehicle body that has a driving part equipped with a driving seat 4 that runs and is located behind the driving part 3 via a link mechanism 7 that is equipped with a lift cylinder 6. The planting device 10 is connected, and the driving force from the engine is transmitted to the seedling planting device 10 via the rotary shaft 8, and a fertilizer tank 21 is provided on the rear side of the driver seat 4 of the self-propelled vehicle body. The fertilizer application device 20 is provided to constitute a riding type rice transplanter with a fertilizer application device.

  This rice transplanter performs a plurality of rice seedling planting operations and simultaneously applies a fertilization operation to the plurality of planted seedlings. When the lift cylinder 6 is operated, the lift cylinder 6 is linked to the link mechanism 7. By swinging up and down with respect to the vehicle body frame 5, a plurality of leveling floats 11 attached to the seedling planting device 10 in the horizontal direction of the machine body at the lower part of the machine body are in a descending work state where they are in contact with the rice field. Then, the leveling floats 11 are moved up and down to the ascending non-working state where they have risen high from the surface. When the seedling planting device 10 is in the descending operation state and the self-propelled vehicle body is driven, a plurality of seedling planting mechanisms 12 arranged side by side in the lateral direction of the body of the seedling planting device 10 are planted by the seedling planting mechanism 12. A block of seedlings is cut from the mat-like seedlings placed on the seedling placing table 13 that is reciprocated in the horizontal direction in conjunction with the movement, and the seedlings are taken out and descended. Planting. Accordingly, the fertilizer application device 20 takes out the granular fertilizer from the fertilizer tank 21 and uses a plurality of fertilizer hoses 22 to arrange a plurality of fertilizers arranged in the seedling planting device 10 in the lateral direction of the planting machine body. 23 will be supplied separately. Each fertilizer spreader 23 is disposed so as to correspond to one of the seedling planting mechanisms 12 and is distributed and attached to the plurality of leveling floats 11. A fertilizer groove is formed near the side of the seedling planting site by the seedling planting mechanism 12, and fertilizer from the fertilizer hose 22 is supplied to the fertilizer groove.

  The fertilizer application 20 will be described in further detail. As shown in FIGS. 3, 4, 5, etc., the fertilizer application apparatus 20 includes one fertilizer tank 21 that is long in the lateral direction of the self-propelled vehicle body, and the bottom of the fertilizer tank 21. The feeding mechanism 30 connected to each of a plurality of funnel portions positioned side by side in the lateral direction of the self-propelled vehicle body, the fertilizer hose 22 extending from a pair of left and right delivery ports 31 of each feeding mechanism 30, and each feeding mechanism 30 The air blower 26 connected to the one end side of the one blower pipe 24 and the one collection | recovery pipe | tube 25 which are located along the self-propelled vehicle body horizontal direction in the lower end part of the self-propelled vehicle body is provided. Configured.

  As shown in FIGS. 4, 5, 6, etc., each feeding mechanism 30 is supported at the upper end side by a fertilizer frame 9 fixed to a body frame 5 of a self-propelled vehicle body by a column 9 a and the fertilizer tank 21. One feeding case 32 whose upper end side is in communication with the funnel portion, a pair of left and right feeding rolls 34 that are installed in the feeding case 32 so as to be integrally rotatable via one roll drive shaft 33, and both of these feeding rolls A shutter 35 that opens and closes above 34, a feeding passage 36 in which one feeding roll 34 of the pair of left and right feeding rolls 34 is located, and a feeding passage 36 in which the other feeding roll 34 is located. A pair of left and right delivery ports 31 composed of a pair of left and right cylindrical bodies formed integrally with the lower part of the feeding case 32 are provided. A Te

  As shown in FIGS. 3 and 5, a rotary transmission shaft 41 composed of one self-propelled sideways hexagonal shaft that is linked to the roll drive shaft 33 of each feeding mechanism 30 via a fertilizer clutch (not shown). Are provided rotatably on the rear side of the self-propelled vehicle body of each feeding case 32, and the input members of a pair of one-way rotary clutches 42 whose output members are interlocked with the rotary transmission shaft 41 are interlocked by a link mechanism 43. The lower end side of the interlocking rod 44 whose upper end side is connected to the input arm 42a of the one-way rotation clutch 42 is interlocked with the output crank arm 46a of the power take-off mechanism 46 attached to the rear wheel transmission shaft 45, and is fed out. A drive mechanism 40 is configured. That is, the payout driving mechanism 40 takes out the rotational driving force from the rear wheel transmission shaft 45, converts this driving force into reciprocating power, and transmits it to the rotational transmission shaft 41, thereby rotating the rotational transmission shaft 41 in one rotation direction. The drive force is transmitted to the roll drive shaft 33 of each feed mechanism 30 to rotate the feed roll 34 of each feed mechanism 30.

  As shown in FIG. 6 and the like, the blower pipe 24 is connected to the front end side of the self-propelled vehicle body of the cylindrical body that constitutes the pair of left and right delivery ports 31 of each delivery mechanism 30. The cylindrical body constituting the pair of left and right delivery ports 31 of each delivery mechanism 30 so as to be supported by the delivery case 32 and communicated with the pair of left and right delivery ports 31 of each delivery mechanism 30 Is connected to the front end side of the self-propelled vehicle body.

  As shown in FIGS. 3 and 10 and the like, the blower 26 is constituted by an electric blower provided with an electric motor 26b on the front side of the self-propelled vehicle body of the blower case. The air intake duct 27 is extended from the air inlet 26c of the blower case of the air blower 26 to the vicinity of the engine exhaust muffler. The air blower 26 is heated by the exhaust heat from the engine exhaust muffler and the temperature rises from the normal temperature. Air is sucked through the intake duct 27 to generate wind, and this warm air is supplied to the blower pipe 24 from the exhaust port 26a as fertilizer conveying air. The intake duct 27 is supported by a self-propelled vehicle body by being fixed to a duct holder (not shown) fixed to the vehicle body frame 5. The intake duct 27 and the intake port 26c of the blower 26 are connected by a flexible duct 28 configured as a bellows tube so as to have flexibility.

  As shown in FIG. 6, a residue take-out port 37 configured by extending a take-out case from a connecting portion 32b formed integrally with the pay-out case 32 on the front side of the self-propelled vehicle body of the pay-out case 32, and the residual Each feed mechanism 30 is provided with a valve body 38 configured to open and close the object take-out port 37 by the connecting portion 32b. Each valve body 38 is configured to open and close by rotating the rotation support shaft 38a of the valve body 38 from the outside of the feeding case 32.

  As shown in FIGS. 4, 6, 7, etc., one end side of the recovery pipe 25 is communicated with a side opposite to the side of the blower pipe 24 to which the blower device 26 is connected via a connecting pipe 50, The middle of the collection pipe 25 is communicated with the residue take-out port 37 of each feeding mechanism 30, and a collection duct 25b is provided at the other end of the collection pipe 25 by connecting a discharge duct bent in a U shape. It is. The lid 51 of the collection outlet 25b is configured by a lid 51 provided at the end of the discharge duct constituting the collection outlet 25b of the collection pipe 25. The lid 51 is externally fitted to the end of the discharge duct, and is fixed to the discharge duct by elastic deformation caused by the external fit, thereby closing the collected product discharge port 25b and removing the cover from the discharge duct. The discharge port 25b is configured to be opened. The lid 51 is connected to the discharge duct by a connector 51a so that it does not fall even if it is removed from the discharge duct.

  The discharge duct constituting the recovered material discharge port 25b of the recovery tube 25 is connected to the recovery tube 25 so as to be rotatable, and the recovered material discharge port 25b is connected to the main body of the recovery tube 25. By rotating the shaft around the shaft core, as shown by a solid line in FIG. 4, the recovered product discharge port 25 b is compactly stored around the electric motor 26 b so as to surround the electric motor 26 b of the blower 26, and FIG. As shown by a two-dot chain line, the recovered product discharge port 25b is switched to a use state that is provided below the electric motor 26b so that the fertilizer can be easily recovered in the future.

As shown in FIGS. 5 and 9, the fertilizer frame 9 that supports the fertilizer tank 21 and each feeding mechanism 30 includes a fixed side frame 60 fixed to the vehicle body frame 5 by the support 9 a and the feeding mechanism 30. A movable frame 65 that is bolted to the case 32 and supports the fertilizer tank 21 and the feeding mechanisms 30 is configured. A connecting plate portion 66 is provided in a portion of the movable side frame 65 located near the vehicle body rear side of each feeding mechanism 30, and the movable side frame 65 is connected to the upper end portion of the fixed side frame 60 by the connecting plate portion 66. It is connected to a support portion located at a position via a connecting pin 55 so as to be rotatable.
As a result, the fertilizer tank 21 and each feeding mechanism 30 are integrally swung in the vehicle front-rear direction with respect to the self-propelled vehicle body about the axial center axis 55a of the connection pin 55 in the vehicle body direction, as shown in FIGS. As shown in (a), the main frame portion 65a facing the vehicle body of the movable frame 65 abuts against the upper surface side of the beam portion 60a facing the vehicle body of the fixed frame 60, and the movable frame 65 is stopped so that it does not fall any further. At the end of the stroke, the fertilizer tank 21 and each feeding mechanism 30 are in an upright attachment state in which they are arranged side by side in the vertical direction of the vehicle body, or as shown in FIG. 9 and FIG. Stop so that the rear end portion of the main frame portion 65a abuts on the upper surface side of the rear end portion of the beam portion 60a of the fixed side frame 60 and does not rise any further. In a state where the fertilizer tank 21 swings from the upright attachment state to the rear side of the vehicle body, and the feeding mechanisms 30 protrude from the fertilizer tank 21 toward the front side of the vehicle body and slightly downward from the vehicle body. It is designed to be in a state of being in a laid-down lodging. The blower tube 24 is connected to the delivery port 31 of each feed mechanism 30, the blower 26 is connected to the blower tube 24, and the recovery tube 25 is connected to the blower tube 24 and the residue take-out port 37 of each feed mechanism 30. When the fertilizer tank 21 and the feeding mechanism 30 swing around the shaft core 55a, the blower pipe 24, the blower 26, and the recovery pipe 25 are integrated with the fertilizer tank 21 and the feed mechanism 30, and the fertilizer tank 21 and the feed mechanism 30 are fed. Swing with the mechanism 30.

  If the fertilizer tank 21 and the feeding mechanism 30 are in the upright attachment state as shown in FIG. 5, the work step 72 located on the lateral side of the driver's seat 4 will be removed from the step attachment part on the vehicle body side. Although step 72 does not come off by coming into contact with the collection pipe 25 as an attachment device of the feeding mechanism 30, as shown in FIG. 9, when the fertilizer tank 21 and the feeding mechanism 30 are switched to the above-described inclining attachment state, the attachment device of the feeding mechanism 30 is obtained. The recovery pipe 25 and the blower pipe 24 are separated upward from the upper surface of the work step 72, and a work space for moving up and down with respect to the step attachment portion in order to detach the work step 72 is provided in the recovery pipe 25 and the blower pipe 24. It can be secured below.

  As shown in FIG. 9, a tension rod 57 is provided at the rear end of the seat support member 58 fixed to the vehicle body frame 5 so as to support the driver's seat 4. The strut rod 57 is rotated with respect to the seat support member 58, so that the seat support member 58 stands up with respect to the seat support member 58, and the seat support member 58 falls from the use attachment state to the front side of the vehicle body. Can be switched to the storage attachment state stored below the driver seat 4. When the fertilizer tank 21 and the feeding mechanism 30 are switched to the above-described lying down attachment state, the tension rod 57 is brought into the use attachment state, and the free end side of the tension rod 57 is extended from the movable side frame 65 to the front side of the vehicle body. The fertilizer tank 21 and the feeding mechanism 30 that are in the overlaid state are stretched and supported by the tension bar 57 so that they are not switched to the upright mounted state by their own weight by being locked to the hook portion on the distal end side of the arm 67. Be able to. That is, by using the tension bar 57, the fertilizer tank 21 and the feeding mechanism 30 can be locked to the fall-mounted state by the tension bar 57, and by switching the tension bar 57 to the retracted mounting state, the fertilizer tank 21 and the feeding mechanism The lock by the tension bar 57 can be released so that the mechanism 30 can be returned to the upright attachment state.

When the seedling planting device 10 is lowered to the lowering operation state, the fertilizer tank 21 is planted even if the fertilizer tank 21 and the feeding mechanism 30 are switched from the standing mounting state to the lying down mounting state as shown by a two-dot chain line in FIG. Although the fertilizer tank 21 and the feeding mechanism 30 do not switch to the overturned attachment state in contact with the extended seedling support base 14 extending from the upper end portion of the seedling support base 13 of the device 10, the seedling planting device 10 is raised and is in a non-working state In the case where the fertilizer tank 21 is raised, the fertilizer tank 21 does not come into contact with the extended seedling platform 14, and the fertilizer tank 21 and the feeding mechanism 30 can be switched to the overturned attachment state.
That is, if the seedling planting device 10 is raised to the non-working state, it is allowed to switch the fertilizer tank 21 and the feeding mechanism 30 to the lying down mounting state, but the seedling planting device 10 is lowered to the lowering working state. If there is, the extension seedling platform 14 restrains the fertilizer tank 21 and the feeding mechanism 30 from being switched to the overlaid state.

As shown in FIG. 8, the front end side of the seat portion 4a of the driver's seat 4 is connected to the seat support member 58 so as to be rotatable around an axis 58a, and the fertilizer tank 21 and the feeding mechanism 30 are mounted in a lying state. When the operation seat 4 is switched to the upright mounting state as shown by a two-dot chain line in FIG. Since the pipe 25 abuts against the backrest 4c of the driver's seat 4 and does not sufficiently rise or fall, the fertilizer tank 21 and the feeding mechanism 30 do not switch to the inclining attachment state or the standing attachment state. Ascending and swinging around the core 58a, the seat portion 4a is vertically oriented, and the backrest portion 4c is moved to the front side of the vehicle body rather than in the lowered use posture, and the recovery pipe 25 is no longer in contact. Leave this state is switched to pay posture, it is to switch the fertilizer tank 21 and the feeding mechanism 30 to the lodging mounted state and standing mounting state.
That is, when the fertilizer tank 21 and the feeding mechanism 30 are switched to the overturned attachment state, the driver's seat 4 cannot be returned to the lowered use posture unless the upright attachment state is returned, and the fertilizer tank 21 and the feeding mechanism 30 are overlaid attached. If it remains switched to the state, the driver's seat 4 cannot be returned to the lowered use posture, so that it can be recognized that the fertilizer tank 21 and the feeding mechanism 30 are in the overturned attachment state. It has become.

As shown in FIGS. 6 and 11, in each feeding mechanism 30, an upper case portion 32 c connected to the fertilizer tank 21, with the feeding case 32 having a surface including the rotation axis X of the feeding roll 34 as a split surface Y, The lower case portion 32d having the delivery port 31 is configured to be freely divided, and the lower case portion 32d is connected to the delivery case 32 on the side opposite to the side on which the blower pipe 24 and the collection pipe 25 are located. It is connected to the upper case portion 32c through a pin 39 so as to be swingable up and down.
In other words, the lower case portion 32d is swung up and down with the air duct 24 and the closing hook 70 removed, with the laterally extending shaft core 39a of the connecting pin 39 as the swing axis. 11B, the opening A of the lower case portion 32d is opened and the opening B of the upper case portion 32c is opened, and the opening of the lower case portion 32d is opened as shown in FIG. A and the opening B of the upper case portion 32c are switched to the closed closed state. When the lower case portion 32d is raised and closed, the closing hook 70 is engaged with the engaging portion 71 of the upper case portion c2c to lock the lower case portion 32d.

In other words, in the fertilizer application device 20, the fertilizer tank 21 and the feeding mechanism 30 are set upright, and in each feeding mechanism 30, the feeding case 32 is in the lifted closed state and the blower pipe 24 is connected. 6, the operating rod 52 of the shutter 35 is pushed into the feeding case 32, the shutter 35 is inserted into the storage portion 53, the upper side of the feeding roll 34 is opened, and the valve body of the residue outlet port 37. 38 is closed, the cover 51 of the recovery pipe 25 is attached as shown in FIG. 4, the recovered product discharge port 25b is closed, and the electric motor 26b of the blower 26 is turned on to perform fertilization work. It has become.
That is, the feeding roll 34 of each feeding mechanism 30 is driven by the driving force from the rear wheel transmission shaft 45 by the feeding drive mechanism 40 and is arranged on the circumferential surface of the feeding roll 34 in the rotational direction as shown in FIG. Thus, the fertilizer in the fertilizer tank 21 is fed out to the feed port 31 by a set amount determined by the volume of the feed recess 34a. Along with this, the blowing device 26 supplies the conveying air whose temperature is higher than that of the outside air to the blowing tube 24. At this time, the conveying air flows into the collection tube 25 from the side opposite to the blowing device side of the blowing tube 24. The residue discharge port 37 is closed by the valve body 38, the recovered product discharge port 25b of the recovery pipe 25 is closed by the lid 51, and the conveying air does not leak outside from the recovery pipe 25. 24 supplies the conveying wind from the blower 26 to each delivery port 31 of each feeding mechanism 30, and in each feeding mechanism 30, the fertilizer fed to the feeding port 31 is sequentially applied by the feeding wind from the blower tube 24 to the fertilizer hose. 22 is sent to the fertilizer 23.

Further, when the fertilizer remains in the fertilizer tank 21 or the feeding mechanism 30, it can be taken out and collected from the collected material discharge port 25b of the collecting pipe 25 as follows.
That is, as shown in FIG. 7, the recovered product outlet 25b of the recovery tube 25 is taken out from the storage state to the use state, and the cover 51 of the recovery tube 25 is removed to open the recovered product outlet 25b. The electric motor 26b is turned on. Then, the air blower 26 supplies the conveying air having a temperature higher than the normal temperature to the air blowing pipe 24, and the air conveying air flows into the collecting pipe 25 from the side opposite to the air blowing device side of the air blowing pipe 24. It flows from the side where the wind inlet 25a is located toward the collected product outlet 25b. In each feeding mechanism 30, as shown by a two-dot chain line in FIG. 6, the operation rod 52 of the shutter 35 is pulled out from the feeding case 32, and the shutter 35 is pulled out from the storage portion 53 above the feeding roll 34 and above the feeding roll 34. Is closed to prevent the fertilizer from flowing down to the feeding roll 34, and the valve body 38 of the residue outlet 37 is opened. Then, even if the shutter 35 comes out of the storage portion 53, it does not reach the upper part of the valve body 38 and does not close the residue outlet 37, and remains even if the operation rod 52 of the shutter 35 is located above the valve body 38. By not closing the material take-out port 37, the fertilizer remaining above the fertilizer tank 21 and the feed roll 34 of the feed case 32 flows down from the residue take-out port 37 and enters the recovery pipe 25. The inside of the collection pipe 25 is conveyed by the conveyance air from the blower pipe 24 that flows through and is discharged from the collected product discharge port 25b. At this time, the inside of the collection pipe 25 is smoothly smoothed by the fact that the conveying air is less likely to flow back due to the throttle portion 25c of the collection pipe 25 and that the inner diameter of the collection pipe 25 increases toward the lower side in the flow direction. The fertilizer is transported so that it is difficult to remain in the collection pipe.

  When inspecting each feeding mechanism 30 and the like, the fertilizer tank 21 and the feeding mechanism 30 are switched to the inclining attachment state. At this time, the raising operation of the seedling planting device 10 to the non-working state is released, the restraint by the extended seedling platform 14 for switching the fertilizer tank 21 and the feeding mechanism 30 to the overturned mounting state is released, and the driver's seat 4 is switched to the ascending storage posture so as not to obstruct the ascent of the recovery tube 25. In addition, the intake duct 27 does not have to be separated from the blower device 26 because the flexible duct 28 bends as the blower device rises. When the fertilizer tank 21 and the payout mechanism 30 are in the sloping attachment state, the payout mechanism 30 protrudes from the fertilizer tank 21 toward the front of the vehicle body, and as a result, the covering of the fertilizer tank 21 above the payout mechanism 30 is released as much as possible. At the same time, the fertilizer tank 21 is located on the opposite side of the feeding mechanism 30 from the side where the driver's seat 4 is located, so that the feeding mechanism 30 can be easily handled and viewed from the driver. At this time, the fertilizer tank 21 and the feeding mechanism 30 can be fixed in the overlaid state by using the tension rod 57.

  At this time, by switching the lower case portion 32d of the feeding case 32 to the lowering open state, the opening A of the lower case portion 32d and the opening B of the upper case portion 32c are opened, and the inside of the feeding case 32 is inspected. It can be opened for easy cleaning. Further, the feeding roll 34 can be taken out from the feeding case 32 so as to be easily inspected and cleaned.

[Another embodiment]
As in the above embodiment, if the seedling planting device 10 is in the descending work state, the fertilizer tank 21 and the feeding mechanism 30 are switched to the overlaid mounting state so that the extended seedling platform 14 checks the seedling planting. The object of the present invention can be achieved even if the apparatus 10 is configured to be restrained by a dedicated restraining member extending from the seedling stage 13 or the body frame of the apparatus 10. Therefore, the extended seedling stage 14 and the restraining member are collectively referred to as restraining means 14.

  The object of the present invention can be achieved even if a lock pin or the like is employed instead of the above-mentioned tension rod 57, and the tension rod 57, the lock pin, and the like are collectively referred to as a lock means 57.

  When the driver's seat 4 is switched from the raised storage posture to the lowered use posture as in the above embodiment, if the fertilizer tank 21 and the feeding mechanism 30 are in the overturned attachment state, the driver seat 4 comes into contact with the recovery pipe 25 and enters the lowered use posture. In addition to being configured not to be switched, a configuration in which the manure tank 21 and the feeding mechanism 30 are erected is also provided by configuring the driver seat 4 so as not to be switched to the lowered use posture by contacting the air duct 24 or the feeding mechanism 30. The object of the present invention of using the driver's seat 4 as a means for preventing forgetting to return to the vehicle can be achieved. Therefore, the collection pipe 25, the blower pipe 24, and the like are collectively referred to as the attachment device 24 of the feeding mechanism 30.

Overall side view of riding rice transplanter with fertilizer application Overall plan view of riding rice transplanter with fertilizer application Rear view of fertilizer application equipment Front view of fertilizer application equipment Side view of feeding mechanism Cross section of feeding mechanism Schematic cross-sectional view of the blower pipe and recovery pipe Explanatory drawing showing the checker for the extension seedling stand Side view of fertilizer tank and feeding mechanism in the overlaid state (A) is a side view of a fertilizer application device in which the fertilizer tank and the feeding mechanism are in the overlaid attachment state, (B) is a side view of the fertilizer application device in which the fertilizer tank and the delivery mechanism are in the upright attachment state. (A) is a side view of the feeding mechanism with the upper case and the lower case closed, and (b) is a side view of the feeding mechanism with the upper case and the lower case opened.

Explanation of symbols

4 Driver's seat 7 Link mechanism 10 Seedling planting device 14 Checking means 20 Fertilizer device 21 Fertilizer tank 24 Blower pipe 25 Attached device 26 Blower device 26c Blower air inlet 27 Air intake duct 28 Flexible duct 30 Feeding mechanism 31 Feeding mechanism delivery Port 32 Feeding case 32c Upper case part 32d of feeding case Lower case part 55a of feeding case Fertilizer tank and swinging shaft core 57 of feeding mechanism Locking means 72 Working step

Claims (6)

A seedling planting device is connected to the rear part of the self-propelled vehicle body via a link mechanism so that it can be moved up and down, and connected to the fertilizer tank and the lower part of the fertilizer tank so that the fertilizer in this fertilizer tank is fed out and supplied to the seedling planting device A fertilizer application device provided with a feeding mechanism, a riding type rice transplanter with a fertilizer device provided on the rear side of the driver's seat of the self-propelled vehicle body,
The fertilizer tank and the feed mechanism are connected in an upright manner in which the fertilizer tank and the feed mechanism are erected in a state in which the fertilizer tank and the feed mechanism are lined up in the vertical direction of the vehicle body, while being connected together so as to be swingable in the longitudinal direction of the vehicle body. And the fertilizer tank swings from the standing mounting state to the rear side of the vehicle body, and is configured to switch to a lying down mounting state in which the feeding mechanism has fallen to a state of projecting forward from the fertilizer tank to the vehicle body,
The feed case of the feed mechanism is configured to be freely divided into an upper case portion connected to the fertilizer tank and a lower case portion having a feed port for supplying fertilizer to the seedling planting device,
The lower case portion is connected to the upper case portion so as to be swingable openable and closable around another horizontal axis on the same vehicle rear side as the side on which the horizontal axis on the vehicle rear side is provided,
When the seedling planting device is in the lift non-working state, the fertilizer tank and the payout mechanism are allowed to switch to the lying down mounting state, and when the seedling planting device is in the descending work state, the fertilizer tank and the A riding type rice transplanter with a fertilizer applicator, characterized in that there is provided check means for preventing the feeding mechanism from switching to the above-mentioned lying down attachment state .   The blower pipe for supplying fertilizer conveying wind to the feeding mechanism and a blower for supplying fertilizer conveying wind to the blowing pipe are connected to the fertilizer tank and the feeding mechanism so as to be swingable integrally. Riding type rice transplanter with fertilizer.   An air intake duct extending from an air inlet of the air blower is provided so that the air blower is sucked by air exhausted by engine exhaust heat, and the air intake duct is supported by a self-propelled vehicle body. The riding type rice transplanter with a fertilizer applicator according to claim 1 or 2, wherein a flexible duct is provided to connect the intake port of the apparatus.   The riding type with a fertilizer applying device according to any one of claims 1 to 3, further comprising a lock unit that can be switched between a locked state in which the fertilizer tank and the feeding mechanism are fixed in the inclining attachment state and an unlocked state. Rice transplanter.   An operation step is provided on a lateral side of the driver's seat, and the fertilizer tank and the feeding mechanism are switched from the standing mounting state to the lying down mounting state, so that the attachment device of the feeding mechanism is moved upward from the working step. The riding type rice transplanter with a fertilizer applying device according to any one of claims 1 to 4, wherein the riding type rice transplanter is configured to be separated from each other. If the driver's seat is swingably switchable between a raised storage position and a lowered use position, and the fertilizer tank and the delivery mechanism are in the fall-attached state, the driver seat is applied to the delivery mechanism or an accessory device thereof. The riding type rice transplanter with a fertilizer applicator according to any one of claims 1 to 5 , wherein the riding rice transplanter is attached in a state of being in contact and not being lowered to the lowered use posture.

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