JP3423561B2 - Rice transplanter with fertilizer application device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of ridge clutches that can freely turn on and off power transmission to a plurality of seedling planting mechanisms.
It is equipped with a plurality of operating levers that can be turned on and off independently for each edge clutch, and a plurality of fertilizer feeding mechanisms that feed out fertilizer separately for each planting row. The present invention relates to a rice transplanter with a fertilizer application device configured to be supplied with power from a drive source to the mechanism and each of the fertilizer feeding mechanisms.

[0002]

2. Description of the Related Art In the above rice transplanter with a fertilizer application, conventionally, as shown in, for example, JP-A-8-224010, each seedling planting mechanism and each fertilizer feeding mechanism corresponding to the planting article are provided. , Mechanically interlockingly connected by push-pull rods and the like, and when the operation lever is operated by the clutch to perform the planting operation of any one of the seedling planting mechanisms, the planting strip corresponding to the seedling planting mechanism is operated. Was configured to operate in conjunction with each other.

[0003]

The above-mentioned conventional structure is applicable to the case where it is necessary to partially plant some of the plurality of planting strips at the edge of the field. Only the planting mechanism can be selectively operated, and fertilization work can be performed only on the corresponding row.

By the way, in the case of the above-mentioned conventional structure, the fertilizer feeding mechanism is simultaneously switched to the operating state as the operation lever is engaged to operate the seedling planting mechanism. Compared with the structure that provides an operating means for fertilizer application for turning on and off power transmission, there is a disadvantage that you forget to operate the operating means for fertilizer application and continue planting work without accidentally applying fertilizer. However, when performing only planting work without applying fertilizer, it is troublesome to remove the fertilizer from the fertilizer storage section for storing the fertilizer fed by the feeding mechanism in advance. Work was needed.

The present invention has been made paying attention to such a point, and an object of the invention according to claim 1 is to avoid the risk that fertilization work cannot be performed due to forgetting the operation, but without performing fertilization. The point is to provide a rice transplanter with a fertilizer application that can easily handle even when only planting work is performed.

An object of the invention according to claim 2 is to simplify the structure in addition to the object of the invention according to claim 1.

According to the third aspect of the invention, in addition to the object of the first aspect of the invention or the second aspect of the invention, the condition that only planting work is performed without fertilization is performed for each article. There is a point to improve usability by setting to.

[0008]

[Means for Solving the Problems]

[ Structure ] The characteristic structure according to claim 1 is applied to each of the fertilizer feeding mechanisms.
A plurality of fertilizer clutches that can be turned on and off
The operation body that switches the fertilizer application to the on / off state
It is equipped with the on / off operation for the edge clutch.
The ridge to be operated by the edge clutch.
Power transmission to the fertilizer feeding mechanism responds
As described above, the operating body for each fertilization clutch
Are linked to the respective operation levers, and the operation levers
Regardless of the operating state of the
Keep the crops in the clutch disengagement position and
There is a holding means that can hold each
It has the following features and effects.
It [ Operation ] That is , a plurality of fertilizer application clutches that can freely turn on and off the power transmission to each fertilizer feeding mechanism are provided, and the power transmission to the seedling planting mechanism can be linked to the on / off operation for the free edge clutch, Since each fertilizer application clutch is linked to each operation lever so that the power transmission to the fertilizer feeding mechanism corresponding to the planting article to be operated by the edge clutch can be turned on and off, fertilizer application can be performed according to the planting operation. When it is necessary to perform work, it is possible to deal with the operation by simply turning on and off the operation lever for the edge clutch, and it is possible to avoid the disadvantage that only planting work is performed without fertilization work. And, regardless of the operating state of the operating lever, since each fertilizing clutch is provided with a holding means capable of separately holding the power transmission in the disconnected state,
When only the fertilizer application clutch is held in the clutch disengaged state when the furrow clutch is in the engaged state, the fertilizer application is not performed without the troublesome work such as removing the stored fertilizer in advance. It becomes possible to carry out planting work only.

[Effect] Therefore, when it is necessary to perform the fertilization work in accordance with the planting work, it is possible to avoid the possibility of being unable to perform the fertilization work due to forgetting the operation, but only performing the planting work without performing the fertilization. Even in such a case, a rice transplanter with a fertilizer application can be provided easily.

[Structure] In the characteristic structure according to claim 2, each of the ridge clutches simultaneously transmits power from the drive source to two seedling planting mechanisms of a plurality of seedling planting mechanisms. The fertilizer application clutch is configured so that power transmission from the drive source can be simultaneously turned on and off with respect to two fertilizer feeding mechanisms corresponding to the two-row seedling planting mechanism. In point, its work
The effects are as follows.

[Operation and Effect] Therefore, with the clutch on / off operation of the operation lever,
The seedling planting mechanism and the corresponding fertilizer feeding mechanism can be switched between the operating state and the non-operating state for each two rows, which is half as compared with the case where such an operation linkage structure is provided for each row. The operation system can be made simple.

[ Structure ] The characteristic structure according to claim 3 is that a fertilizer application clutch is provided separately for each fertilizer feeding mechanism .
The effect is as follows . [Operation and effect ] Each row can be set to a state in which only planting operation of seedlings is performed without applying fertilizer, and usability is improved. Incidentally, the on / off operation of the fertilizer application clutch accompanying the operation of the operation lever can be performed, for example, every two rows corresponding to the seedling planting mechanism.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A rice transplanter with a fertilizer application apparatus according to the present invention will be described below with reference to the drawings. As shown in FIG. 1, a seedling planting device 4 is provided via a link mechanism 3 in the rear of a riding type vehicle body having a pair of left and right front wheels 1 and rear wheels 2.
Are connected so that they can be moved up and down, and a fertilizer application device A is provided in front of the seedling planting device 4 to form a rice transplanter with a fertilizer application device.
In this rice transplanter, the power of the engine E as a drive source mounted in the front bonnet 5 of the traveling vehicle body is transmitted to the front wheels 1 via the front side transmission case 6, and at the same time, the transmission shaft 7 and the rear transmission case. It is a four-wheel drive type in which the vehicle body is driven to travel by being transmitted to the rear wheels 2 via 8, and the left and right front wheels 1 are steered in accordance with the operation of a steering handle 10 provided in a boarding operation unit 9 of the traveling vehicle body. It is configured to be rocked. or,
Power is transmitted from the front side transmission case 6 to the seedling planting device 4 via the power takeoff shaft 11 to drive the seedling planting device 4, and the seedling planting work can be performed while traveling in the field. There is.

The seedling planting device 4 is moved up and down between a working position for seedling planting, where the lower end is in contact with the field scene, and an elevated position, which moves largely upward, as the hydraulic cylinder 12 for elevation moves. A seedling stand 14 that freely moves and reciprocates laterally at a set pitch along the lateral direction of the vehicle body with respect to the planting part frame 13 that is linked and supported by the link mechanism 3, and the planting target placed on the seedling stand 14 A six-row planting system is provided with a plurality of (six) seedling planting mechanisms 15 for taking out one plant from the lower end of the seedlings and planting it in the field, and a grounding float 58 that grounds the mud while grounding the field. ing.

At the end of the lateral movement stroke, the placed seedlings are placed in the seedling placing portion of the seedling placing table 14 for the seedling planting mechanism 1
A vertical feeding device 16 is provided for each planting strip for feeding a set amount toward the position 5. The vertical feed device 16 is configured such that a belt with protrusions is wound around a pair of upper and lower pulleys, and the lower pulley is rotated by a predetermined amount by abutting action at the stroke end.
The structure of the vertical feeding device 16 will not be described in detail, but 2
A vertical feed clutch 16d is provided which can be switched between a state in which the vertical feed operation is performed and a state in which the operation is stopped for each line. Then, in the ground float 58, at each position adjacent to the planting site of the seedling in each planting strip, the ground float 58 enters the mud layer toward the lower side of the ground surface and supplies fertilizer to the mud surface. A grooving device 17 for forming a groove is provided.

Next, the fertilizer application device A will be described. As shown in FIG. 2, the fertilizer application apparatus A is located below the storage hopper 18 serving as a storage section for storing powdered and granular fertilizer, and feeds the resin-molded storage hopper 18 downward by a set amount. A plurality (six) of fertilizer feeding mechanisms 19 are provided corresponding to each planting article, and the fertilizer feeding mechanism 19 is provided.
By means of the blowing action of the blower blower 20 serving as a blower, the powdered and granular fertilizer fed by the blower is guided through the fertilizing hose 21 toward the grooving device 17 provided in the seedling planting device 4. There is.

As shown in FIG. 3, the fertilizer feeding mechanism 19 is fitted into the casing 22 so as to be integrally rotatable with the feeding rotation shaft 23 while facing the bottom opening portion of the storage hopper 18. At the same time, a feeding rotary member 25 having a plurality of concave portions 24 for entering the fertilizer is provided on the outer peripheral portion, and the fertilizer stored in the concave portions 24 as the feeding rotary member 25 is rotated downward. The guide portion 26 is configured so as to flow down. A brush 27 for scraping is provided so as to store a predetermined amount in the recess 24.

The brush 27 is swingable around the horizontal axis P between an operating position located on the outer peripheral surface of the feeding rotary member 25 and a fertilizer discharging position separated from the feeding rotary member 25, and of the casing 22. Swing integrally with the switching operation of the switching operation tool 31 provided on the lateral outside,
The position is maintained at each of the above positions.

Each casing 22 in each of the plurality of fertilizer feeding mechanisms 19 is supported by a vertical frame 29 that is fixedly erected from the vehicle body frame F, and is fixedly supported by a horizontal frame 30 that extends laterally of the vehicle body. The feeding rotary shaft 23 is divided into three parts so that the feeding rotary members 25 of the pair of fertilizer feeding mechanisms 19 rotate integrally, and two of the six fertilizer feeding mechanisms 19 are provided.
Each fertilizer feeding mechanism 19 can be driven and stopped individually.

The drive configuration of the fertilizer feeding mechanism 19 will be described. At a position on the rear side of the fertilizer feeding mechanism 19, the length of the fertilizer application device A along the lateral direction of the vehicle body is substantially the entire width,
Further, the drive shaft 32 is arranged in a state of being rotatably supported at both end portions, and a one-way clutch 33 is provided at an intermediate portion in the lateral width direction of the drive shaft 32. Then, the operating arm 34 of the one-way clutch 33 and the rotary arm 36 attached to the lateral transmission shaft 35 that is rotationally driven by the power take-off shaft 11 via the bevel gear mechanism 28 are pivotally connected by a push-pull link, The push-pull link 37 is pushed and pulled by the rotation of the rotary arm 36, and the drive shaft 32 is rotated only when the operation arm 34 is rotated in a predetermined direction by the one-way clutch 33. Has been done. Therefore, the drive shaft 32 is intermittently rotated in a fixed direction as the rotary arm 36 rotates.

Further, between the drive shaft 32 and each of the three feeding rotary shafts 23, a fertilization clutch 38 is provided, which is capable of independently turning on and off the power transmission. As shown in FIGS. 4 and 5, a state in which a gear 39 that is fitted to the drive shaft 32 so as to be rotatable relative to it and a gear 40 that is fitted to the feeding rotation shafts 23 so as to be integrally rotatable are meshed with each other. A clutch piece 41, which is provided on the side of the gear 39 on the side of the drive shaft 32, is integrally rotatable with the drive shaft 32 and is slidable in the direction of the rotation shaft core, is provided with a spring toward the direction close to the gear 39. The clutch piece 41 and the gear 39 are externally fitted in a biased state, and a meshing portion k is formed at a position where the clutch piece 41 and the gear 39 face each other. When the meshing portion k meshes with each other, they are integrally rotated. Further, each of the clutch pieces 41 is configured to be disengageable by pulling the operation wire 42. That is, the operating body 57 that engages with the clutch piece 41 is swingably supported around the vertical axis X3 by the support portion 30a fixedly extended from the horizontal frame 30, and the meshing portion k is caused by the spring biasing force.
Is engaged and the operation wire 42 is pulled to oppose the spring force so that the engagement portion k separates and the clutch is disengaged. As shown in FIG. 9, in the transmission system from the power takeoff shaft 11 to each seedling planting mechanism 15, every two rows of seedling planting mechanism 1
Three ridge clutches 43 for turning on and off the power transmission to and from 5 are provided, and the operation wire 42 is linked to a planting clutch lever 44 for individually operating each ridge clutch 43. Therefore, the transmission / reception of the corresponding two-row seedling planting mechanism 15 is turned on / off in accordance with the on / off operation of the planting clutch lever 44, and the corresponding two-row fertilizer application clutch 38 is also turned on / off,
Further, the vertical feed clutch 16d is also put into and out of operation.

Further, there is provided a holding means H capable of holding each fertilizer application clutch 38 in a power transmission cut state independently of the operating state of the planting clutch lever 44. That is, as shown in FIG.
An insertion hole 30b is formed so that the operating body 57 is aligned with the clutch disengaged position. By inserting the lock pin 60 into the insertion hole 30b, the planted clutch lever 44 is in the engaged state. Even in this case, the holding means H is configured so that the fertilizer application clutch 38 can be held in the power-off state by bending the operation wire 42.

As shown in FIG. 2, on the front side of the casing 22, a round tubular blower pipe 45 is arranged with its longitudinal direction along the lateral direction of the vehicle body, and support brackets 46 are provided on both end sides. It is provided in a state of being supported by the horizontal frame 30 via the blower pipe 45, and the blower blower 20 is provided at one lateral end of the blower pipe 45.
Thus, air is supplied to the inside of the air blow pipe 45. As shown in FIGS. 6 and 7, this blower blower 2
0 is the axis of the ordinate across the operating position (see FIG. 6A) where the air blows toward the blower pipe 45 and the cleaning open position (see FIG. 6B) that opens the end of the blower pipe 45. It is supported swingably around X1. or,
At each of the above-mentioned positions, a lock pin 47 that can be freely inserted and removed can hold the position. Further, a round tubular discharge pipe 48 similar to the blower pipe 45 is arranged below the casing 22 in a state where the longitudinal direction thereof is along the lateral direction of the vehicle body. Is bent downward, and an opening 49 for discharging fertilizer is formed downward at its lower end, and the other end in the longitudinal direction is a lid body that can be opened and closed as shown in FIG. Four
It is closed at 5a.

As shown in FIG. 3, below the funnel-shaped guide portion 26 is a fertilizer supply portion 51 that opens toward the rear side of the vehicle body while communicating with the lower end outlet 50 of the guide portion 26. The fertilizer supply section 51 is formed with one end of the fertilizer hose 21 inserted therein. An air supply unit 52 is formed on the front side of the fertilizer supply unit 51 so as to connect the lower end outlet 50 of the guide unit 26 and the inside of the blower pipe 45 to each other. The air supply part 52 and the fertilizer supply part 51 are formed so as to extend in a substantially straight line along the longitudinal direction of the vehicle body. A discharge portion 54 is formed below the lower end outlet 50 of the guide portion 26 so as to form a discharge path 53 that connects the lower end outlet 50 and the inside of the discharge pipe 48.

As a guide route changing means, the powdery and granular fertilizer fed from the fertilizer feeding mechanism 19 can be switched between a feed state in which it is guided to the fertilizer hose 21 and a discharge state in which it is guided to the discharge route 53. Path switching plate 55
Are provided corresponding to each of the plurality of fertilizer feeding mechanisms 19. The path switching plate 55 closes the discharge path 53 and supplies the lower end outlet 50 of the guide portion 26 with the inside of the fertilizer supply section 51, that is, the inside of the fertilizer hose 21 and the inside of the blower pipe 45 to communicate with each other. Position and fertilizer supply section 51
The inner passage of the guide part 26 is blocked, and the lower end outlet 50 of the guide portion 26 is pivotally supported around the left and right axial center X2 so as to be swingable around a discharge position where the discharge path 53 and the inside of the blower pipe 45 communicate with each other. By operating a switching lever 56 provided on the outside of the portion 26, it is possible to swing integrally and switch to each of the above positions.

When fertilizing is carried out at the same time as planting of seedlings, the path switching plate 55 is switched to the supply position and the air blow operation by the air blower 20 is started.
The granular granular fertilizer fed out from the fertilizer feeding mechanism 19 by a predetermined amount is guided by the wind blower 20 to blow the guide portion 26.
Fertilizer supply part 51 and fertilizer hose 21 from the lower end outlet 50 of
After passing through, the air is guided toward the grooving device 17 and supplied to the field. After the planting work is completed, fertilizer remains in the storage hopper 18, and when the fertilizer is collected, the switching lever 56 is switched to the discharge position and the brush 27 in the fertilizer feeding mechanism 19 is fed. When the fertilizer is discharged by switching to the fertilizer discharge position separated from the rotating body 25 and the air is blown by the blower blower 20, the discharged fertilizer passes through the discharge path 53 and the discharge pipe 48 from the lower end outlet 50 of the guide portion 26. Then, the discharge pipe 48 is discharged to the outside through an opening formed at one end of the discharge pipe 48 in the longitudinal direction. At that time, the fertilizer can be recovered by positioning a recovery container or the like corresponding to the opening. Therefore, the blower blower 20 functions as a transfer unit I that transfers the powder or granular material guided through the respective discharge paths 53 into the discharge pipe 48 toward the opening. In addition, as described above, the brush 27
Instead of switching to the discharging position, the feeding rotary member 25 can be rotated to feed the remaining fertilizer.

Not only the wind force of the blower blower 20 but also
Utilizing the suction force at the suction portion of the blower blower 20, for example, as shown in FIG. 10, a suction hose 62 having a suction nozzle 61 at the tip is connected to the suction action portion thereof to store the storage hopper 18. It is also possible to suck in the remaining fertilizer inside the plant, or dust that has fallen onto other places. In this case, it is preferable to provide the dustproof net 63 so that the sucked dust does not enter the blower 20.

[Other Embodiments] (1) The storage hopper 18 may be configured as follows instead of being integrally formed of a synthetic resin material as a whole as described above. As shown in FIG. 11, FIG. 12, and FIG. 13, the hopper unit body 18a for each strip and the wall bodies 18b on both left and right sides, which have the same shape, are formed by molding a synthetic resin. Adjacent to each other are connected by being sandwiched by clips 18c on both upper and lower sides, and are respectively connected to engagement holes 18e formed in a pair of support members 18d, 18d that are laid across the left and right walls 18b, 18b. The engaging claw 18f formed on the hopper unit 18a is inserted and engaged to be supported. With this configuration, the storage hopper 18 that is a large member
Can be easily created by a collection of small parts.

(2) In the above-described embodiment, the fertilizer application clutch is provided for each pair of fertilizer feeding mechanisms, and the fertilizer application clutch is provided for every two rows corresponding to the on / off operation of the planting clutch (edge clutch). In this way, a single cutting operation is performed for every two rows so that the fertilizer application mechanism is provided for each fertilizer feeding mechanism of each row, and the cutting operation is performed independently. It may be configured such that it can be operated, and the two fertilization clutches corresponding to every two rows are linked so as to be simultaneously turned on and off in accordance with the operation of the planting clutch lever. By doing so, only the fertilizer application clutch can be set to the disengaged state independently for each line regardless of whether the planting clutch is engaged or disengaged, and the usability is improved.

(3) In the above embodiment, the case where the ridge clutches (planting clutches) are provided so as to turn on and off the power for each two planting mechanisms has been described. A ridge clutch may be provided for each line so that power transmission can be turned on and off separately.

(4) In the above embodiment, the operation body of the clutch is held by the lock pin at the disengaged position as a means for maintaining the fertilizer application clutch in the power transmission disengaged state. However, instead of such a construction, The fertilizer clutch is configured so that it can be engaged and disengaged using an actuator such as an electromagnetic solenoid or an electric cylinder, and based on a clutch disengagement command, the ridge clutch is controlled to keep the actuator disengaged regardless of the operation. It may be configured to.

[Brief description of drawings]

[Figure 1] Overall side view of rice transplanter

[Figure 2] Rear view of fertilizer application

FIG. 3 is a vertical sectional front view of the feeding mechanism.

FIG. 4 is a side view showing a fertilizer application clutch.

FIG. 5 is a plan view showing a fertilizer application clutch.

FIG. 6 is a plan view showing a structure for supporting a blower blower.

FIG. 7 is a side view showing a structure for supporting a blower blower.

FIG. 8 is a view showing the other end side of the blower pipe.

FIG. 9 is a diagram showing a clutch operation system.

FIG. 10 is a diagram showing a suction configuration by a blower blower.

FIG. 11 is a vertical sectional front view of a storage hopper according to another embodiment.

FIG. 12 is a vertical sectional side view of the storage hopper of another embodiment.

FIG. 13 is a perspective view showing a connected state of the storage hopper of another embodiment.

[Explanation of symbols]

15 Seedling planting mechanism 19 Fertilizer feeding mechanism 38 Fertilization clutch 43 Edge clutch 44 Operating lever 57 Operating body E Driving source H Holding means

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Zensei Nakagawa 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Plant Co., Ltd. (72) Inventor Tetsuya Matsumura, 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house (56) Reference JP-A-9-107757 (JP, A) JP-A-10-42642 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01C 11/00 302 A01C 15/00

Claims (3)

(57) [Claims] 1. A plurality of edge clutches capable of freely turning on and off power transmission to a plurality of seedling planting mechanisms, and a plurality of operating levers corresponding to each of the edge clutches and capable of individually turning on and off.
A plurality of fertilizer feeding mechanisms for individually feeding fertilizer corresponding to each planting article are provided, and each seedling planting mechanism and each fertilizer feeding mechanism is configured to be supplied with power from a drive source. A rice transplanter with a fertilizer application, wherein a plurality of fertilizer clutches that can freely turn on and off the power transmission to each of the fertilizer feeding mechanisms and the fertilizer clutch are turned on and off.
An operating body for switching drive is provided, and power transmission to the fertilizer feeding mechanism corresponding to the planting article to be operated by the ridge clutch is turned on and off in conjunction with the on / off operation of the ridge clutch. so that, the said operating member to each fertilization clutch is linked to the respective operating lever, and, regardless of the operation state of the operation lever, the steering
It acts on the work structure and keeps the manipulator in the clutch disengaged position.
And a fertilizer application rice transplanter provided with holding means capable of separately holding the fertilizer application clutches in a power transmission cut state. 2. The fertilizer fertilizer is configured such that each of the ridge clutches is capable of simultaneously turning on / off the power transmission from the drive source to two seedling planting mechanisms of a plurality of seedling planting mechanisms at the same time. The rice transplanter with a fertilizer application device according to claim 1, wherein the clutch is configured to be able to turn on and off the power transmission from the drive source simultaneously with respect to two fertilizer feeding mechanisms corresponding to the two-row seedling planting mechanism. . 3. The rice transplanter with a fertilizer application device according to claim 1, wherein the fertilizer application clutch is provided separately for each fertilizer feeding mechanism.