JPH1189356A - Granule feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a fitting operation of a sending out mechanism to a machine body so as to carry out the operation readily and simply, by contriving the supporting structure of the sending out mechanism. SOLUTION: This feeder is equipped with a hopper 18 for storing a fertilizer, a sending out mechanism 19 for transporting the fertilizer of the hopper 18 and a supply hose 21 for feeding the transported fertilizer to a furrow opener attached to a planting part. The sending out mechanism 19 is loaded on a machine body frame F immediately behind a driver's seat 67 through a stay 29 supporting the sending out mechanism. The lower part of the stay 29 is bent forward and the position of a fitting part 86 of the stay 29 to the machine body frame F is made approximately coincident with the position of the center of gravity of the sending out mechanism 19 in the longitudinally direction in a side view.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdery and granular material supply device such as a fertilizer application device mounted on a rice transplanter, and more particularly, to a structure in which a delivery mechanism is mounted on a body such as a position immediately behind a driver's seat, a so-called mid. The present invention relates to a mounting structure in an arrangement type. As the granular material, in addition to fertilizers, seeds for direct sowing and the like can be considered.

[0002]

2. Description of the Related Art As an example of the above-mentioned mid-arrangement type, a rice transplanter with a mid fertilizer is disclosed in Japanese Patent Application Laid-Open No. 9-131104. It is useful as something that can be done.

[0003]

In the rice transplanter disclosed in the above publication, a groove generator is mounted on a planting portion, and a feeding mechanism provided with a hopper is mounted on the body at a position immediately after a driver's seat. From FIG. 1 of the publication, it can be seen that the feeding mechanism is supported by a support member erected from the body at the front side. In this structure, since the support member supports the feeding mechanism in a cantilever manner in the front-rear direction, in addition to the vertical load, the mounting portion of the support member tries to fall backward. A couple also acts.

Therefore, when assembling the feeding mechanism, the fixing means such as the bolts is operated while supporting the feeding mechanism which is about to fall down, and this requires labor.
In addition, the positioning is difficult and the assembling property is not good, so that there is room for improvement. SUMMARY OF THE INVENTION It is an object of the present invention to improve the support structure of the feeding mechanism so that the work of assembling the body can be performed easily and easily.

[0005]

[Means for Solving the Problems]

[Structure] A first invention is a hopper for storing powders and granules, a feeding mechanism for feeding out the powders and granules of the hopper, and a supply for supplying the fed-out powders to a groove generator provided in the planting section. A pipe is provided, and the feeding mechanism is mounted at an intermediate portion in the front-rear direction of the traveling body via a stay supporting the same. Is characterized by being substantially matched to the position of the center of gravity of

A second invention is characterized in that, in the first invention, the mounting portion is fixed in a state where the mounting portion is placed on an uneven plane of the body frame.

According to the structure of the first aspect, the position of the mounting portion of the stay supporting the delivery mechanism to the body substantially matches the center of gravity of the delivery mechanism in the front-rear direction in side view. In addition, the conventional couple is hardly applied to the attachment portion to the body of the support member that supports the feeding mechanism, and the attachment strength is improved accordingly. Also, since the dispensing mechanism hardly behaves as if to fall down, there is no increase in the supporting force due to the couple acting as in the conventional case. It only needs to support the load in the direction.

That is, in a fertilizer applicator of a rice transplanter or the like, it is common that the feed-out mechanisms are juxtaposed right and left such as four-row and six-row, and two or more support members are used in the left-right direction. Therefore, as described above, it is important to balance the position of the center of gravity in the front-rear direction and the support member.

According to the second aspect of the present invention, since the mounting portion in which the front-rear balance is substantially maintained is mounted on the flat portion of the body frame and fixed, the supporting member is mounted on the body frame. By itself, a self-standing state or a state close to the self-standing state comes to appear, and when the fixing operation is performed, the hand is easily attached to the feeding mechanism.

According to the first or second aspect of the present invention, (a) the support member of the feeding mechanism is arranged to support the feeding mechanism at or near the center of gravity in the front-rear direction. By simple remodeling to set the shape of
The labor for supporting the feeding mechanism is reduced, and the fixing operation can be easily performed, so that the assembling property of the feeding mechanism is improved.

According to the second aspect of the present invention, the mounting portion of the support member is mounted on the uneven plane of the body frame, thereby fixing the support member in a state where the feeding mechanism is hardly supported. The operation becomes possible, and there is an advantage that the feeding mechanism can be more easily and easily assembled.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a seedling planting device 4 as a planting unit is connected to the rear of a riding type traveling body having a pair of left and right front wheels 1 and a rear wheel 2 via a link mechanism 3 so as to be able to move up and down. The fertilizer applicator A is provided at a position in front of the seedling transplanter 4 and immediately after the driver's seat 67 to constitute a rice transplanter with a fertilizer applicator.

In this rice transplanter, the power of the engine E mounted in the hood 5 of the traveling machine is transmitted to the front wheels 1 via the front transmission case 6 and also transmitted via the traveling system transmission shaft 7 and the rear transmission case 8. It is a four-wheel drive type that is transmitted to the rear wheels 2, and is configured to steer the left and right front wheels 1 by operating the steering wheel 10 of the boarding operation unit 9. A PTO shaft 11, which is a planting system transmission shaft, extends rearward from the front transmission case 6, and power is transmitted from the PTO shaft 11 to the seedling planting device 4, so that the vehicle travels in the field. It is configured so that the seedling planting operation can be performed while doing so.

The seedling planting device 4 includes a hydraulic cylinder 1 for lifting and lowering.
With the expansion and contraction operation of 2, the raising and lowering operation can be freely performed between a working position for seedling planting whose lower end is in contact with the field scene and an ascending position which moves largely upward. The seedling rest 14, which reciprocates laterally at a set pitch along the vehicle body width direction with respect to the planting section frame 13 connected and supported by the link mechanism 3,
Plural (six) planting mechanisms 15 for taking out seedlings one by one from the lower end of the seedlings to be planted placed on the seedling mounting stand 14 and planting them in the field, a grounding float for leveling the mud surface while grounding in the field It is configured in a six-row planting format with 58 or the like.

A vertical feeder 16 for feeding a set amount of seedlings placed at the end of the lateral movement stroke toward the planting mechanism 15 is provided at a seedling placement portion of the seedling mounting table 14 for each planting strip. Have been. The vertical feeding device 16 is configured such that a belt with a projection is wound over a pair of upper and lower pulleys, and a lower pulley is rotated by a predetermined amount by a contact action at a stroke end.

The vertical feeder 16 has a vertical feed clutch (not shown) which can be switched between a state in which the vertical feed operation is performed and a state in which the operation is stopped every two rows, although the structure is not described in detail. Is provided. In the ground float 58, at each location adjacent to the planting site of the seedling in each planting line, a groove for entering the mud layer below the ground surface and supplying fertilizer to the mud surface. Is formed.

Next, the fertilizer applicator A will be described. FIG.
As shown in the figure, the fertilizer applicator A includes a three-piece integrated fertilizer hopper 18 for storing powdered and granular fertilizer, a feeding mechanism 19 for feeding a predetermined amount of fertilizer therefrom, and a seedling planting device for feeding the fed fertilizer. And a fertilizing hose (an example of a supply pipe) 21 to be sent to the groove generator 17 of FIG. The feeding mechanism 19 has a funnel section 18 for each strip of the fertilizer hopper 18.
located below a, a plurality (6) corresponding to each planting strip
It is provided. The fertilizer fed from each feeding mechanism 19 is forcibly transferred to each of the groove producing devices 17 through the fertilizing hose 21 by blowing air from the blower 20.

As shown in FIG. 3, the feeding mechanism 19 is fitted inside the casing 22 so as to be rotatable integrally with the feeding shaft 23 in a state facing the bottom opening of the fertilizer hopper 18 and has an outer peripheral portion. Is provided with a plurality of recesses 24 for receiving fertilizer at a predetermined pitch, and the fertilizer stored in the recesses 24 with the rotation of the delivery rotator 25 is filled with a lower funnel. The guide section 26 is configured to be guided downward. In addition, 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 operation position located on the outer peripheral surface of the feeding rotary member 25 and a fertilizer discharge position separated from the feeding rotary member 25, and the brush 22 is provided with a casing 22. Swing together with the switching operation of the switching operation tool 31 provided on the lateral side outside of the vehicle, so that the position is held at each position.

Each of the casings 22 in each of the plurality of feed-out mechanisms 19 is supported by a vertical frame 29 fixedly provided upright from the body frame F, and is fixedly supported by a horizontal frame 30 extended in the lateral direction of the vehicle body. Extension shaft 2
Reference numeral 3 denotes each of the payout rotating bodies 2 for each of the pair of payout mechanisms 19.
5 is provided so as to be divided into three so as to rotate integrally, and two of the six feeding mechanisms 19 are provided.
It is configured such that it can be individually driven and stopped for each time.

As shown in FIGS. 10 and 11, a pair of left and right vertical frames (an example of stays) 29, 29 have lower portions bent forward, and their lower ends are connected to each other by a connecting member (attachment member) made of an angle material. The connecting member 86 is mounted on a mounting member (an example of an uneven plane) 87 of the body frame F, and is bolted to support the feeding mechanism 19 on the body. That is, the position of the connecting member 86 substantially matches the center of gravity of the feeding mechanism 19 in the front-rear direction when viewed from the side, and the mounting member 87 is configured to be an uneven plane in the body frame.

As shown in FIG. 10, a guide plate 88 which is slightly downwardly inclined is attached to the lower part of the feeding mechanism 19, and the fertilizer leaked from the hopper 18, the feeding mechanism 19, etc. moves forward and is guided. The plate 88 is configured to be dropped and discharged from the front end. As shown in FIG. 12, the rear end position of the rear wheel fender 89 is set to substantially the same position as the rear end of the driver's seat 67, and the height of the dispensing mechanism 19 is slightly increased. For example, the fender 89 and the feeding mechanism 19
This is convenient because it is possible to see the planting field scene from above and below the (blower pipe 45) and from behind to below.

As shown in FIG. 1, a lid 18a is provided on the upper portion of the hopper 18 so as to be openable and closable at a lateral fulcrum Z at the rear. The maximum opening position of the cover 18a is set in a range that does not interfere with the elevating locus L at the rear end of the extended seedling mounting table 14A provided above the seedling mounting table 14. Therefore, the hopper lid 18a can be freely opened and closed regardless of the vertical position of the planting section 4.

The driving structure of the feeding mechanism 19 will be described. As shown in FIG. 2, at a position on the rear side of the feeding mechanism 19, the ferrite applying device A has a length that covers almost the entire width along the vehicle width direction, and is rotatably supported at both end portions. A drive shaft 32 is provided, and a one-way clutch 33 is provided at an intermediate portion of the drive shaft 32 in the width direction. Operation arm 34 of one-way clutch 33 and bevel gear mechanism 2
8, a rotation arm 36 attached to a lateral transmission shaft 35 driven to rotate by the PTO shaft 11 is pivotally connected by an interlocking rod 37, and the operation arm 34 swings with the rotation of the rotation arm 36. The drive shaft 32 is intermittently rotated only in a predetermined direction by the one-way clutch 33.

Further, between the drive shaft 32 and each of the three feed shafts 23, a fertilizing clutch 38 capable of turning on and off the power is separately provided. The fertilizing clutch 38 is shown in FIG.
As shown in FIG. 5, a gear 39 externally rotatably fitted to the drive shaft 32 and a gear 40 externally rotatably fitted to each of the payout shafts 23 are provided in a meshing state. A clutch piece 41 that is rotatable integrally with the drive shaft 32 and slidable in the direction of the axis of rotation is externally fitted to the lateral side of the gear 39 on the side of the gear 32 in a state where the clutch piece 41 is spring-biased toward the direction approaching the gear 39. Then, at a position where the clutch piece 41 and the gear 39 face each other,
A meshing portion k is formed, and when the meshing portion k meshes, they rotate integrally.

Each clutch piece 41 is connected to an operation wire 41a.
Is configured to be able to be cut individually by the pulling operation. That is, the operating wire 41a is linked to one end of the L-shaped crank arm (not shown) swingably supported by the member on the side of the horizontal frame 30, and the clutch piece 41 is linked to the other end. As a result, the clutch is engaged with the engagement portion k, and the pulling operation of the operation wire 41a causes
The meshing portion k is separated against the spring force to switch to the clutch disengaged state.

The structure for adjusting the feeding amount will be described. As shown in FIGS. 2 and 6, a feeding amount adjusting mechanism D is provided for each feeding mechanism 19, and a gear-shaped rotation adjusting tool 70 for operating the feeding amount adjusting mechanism D can be engaged and disengaged. The plurality of gear-shaped driving rotators 71 are connected to a rotatable operation rod 72 having a posture along the left-right direction. Operation rod 7
2, the driving rotator 71 and the rotation adjuster 70 are engaged (engaged) by the sliding movement of the leftward (one direction), and the operating rod 72 is slid rightward (the other direction). It is configured to be able to show a non-operating state in which the engagement between each drive rotating body 71 and each rotation adjusting tool 70 is released by the movement. The right end of the operating rod 72 is provided with a handle 75 formed by bending the operating rod.

The feeding amount adjusting mechanism D is a fixed roll 2 which is fitted on the feeding shaft 23 so as to be axially immovable and integrally rotated.
In order to move the movable roll 25b by the screw feed mechanism 82 in the axial direction, the payout roll 25 composed of 5a and a movable roll 25b fitted to the payout shaft 23 so as to be axially movable and relatively rotatable. The rotation adjusting tool 70 is rotatably fitted to the feeding shaft 23.

The fixed roll 25a and the feeding shaft 23 are fitted in a hexagonal cross section, and the fixed roll 25a and the movable roll 25b are relatively slidable in the axial direction, and are engaged with each other in the circumferential direction to rotate integrally. It is configured in. Screw feed mechanism 8
2 has one end thereof rotatable relative to the fixed roll 25a,
In addition, the rotation adjusting tool 70 is engaged with the other end so as to be integrally rotatable in the axial direction, and the extension shaft 2
3 is configured by screwing a cylindrical screw body 83 in an externally fitted state and a movable roll 25b.

That is, when the rotation adjuster 70 is rotated, the movable roll 25b is moved in the axial direction with respect to the fixed roll 25a to reduce the width of the fertilizer into the recess 24 formed between the rolls 25a, 25b. It can be set variably. However, when adjusting the feeding amount, it is a necessary condition that the feeding shaft 23 is fixed.

As shown in FIG. 7 to FIG.
The bracket 73 is slidable left and right at a position above the drive shaft 32 and behind the feed shaft 23.
The operating rod 72 is urged back to the right by a return spring 74 provided at a portion of the U-shaped stay 30a bolted to the horizontal frame 30 and is rotated with the driving rotating body 71 in a free state. The inoperative state in which the bite with the adjusting device 70 is released is provided.

The operation position (position of the imaginary line in FIG. 9) for sliding the operation rod 72 to the left against the urging force of the return spring 74, and the retreat position for not sliding in the left direction (FIG. 9). (A position indicated by a solid line) and a switching lever 76 capable of swinging about a vertical axis Y around the horizontal frame 3.
0 is supported. That is, a boss 77 having a pin 77a projecting upward is externally fitted to the handle-side end of the operating rod 72 so as not to be relatively slidable, and the pin 77a is fitted into a long hole 76a formed at the base side of the switching lever 76. Accordingly, the operation rod 72 can be moved back and forth by swinging the switching lever 76.
In the free state, the switching lever 76 is also pushed back to the retracted position by the urging force of the return spring 74.

A boss portion 76 for supporting the switching lever 76
A lock lever 78 having a substantially laterally U-shaped clamp member 78a at the end thereof is fixed below b, and as the switching lever 76 is operated to the operating position, the feeding roll, that is, the feeding shaft 23 is moved. The lock mechanism G is configured so as to lock the rotation of the motor. That is, with the operation of the switching lever 76 from the retracted position to the operation position, the lock lever 78 is operated.
Is also swung to the operating position, and the clamp member 78a fits on two opposing surfaces of the drive shaft 32, which is a hexagonal axis.

Therefore, in order to adjust the feed amount integrally for all the strips, first, the switching lever 76 in the retracted position is right or left handed.
Is pivoted to the operating position, and the operating rod 72 is pushed into the adjusting operation state, and the lock mechanism G is operated to disable the drive shaft 32 from rotating. Then, while maintaining that state, the handle 75 is rotated with the left or right hand to increase or decrease the feeding amount adjustment mechanism D. When the adjustment is completed, simply release the grip of both hands,
The operation rod 72 is pushed back to the right by the action of the return spring 74, and the switching lever 76 returns from the operation position to the retracted position alone.

As shown in FIG. 2, FIG. 6, etc., a pressing member 81 for locking the feeding shaft 23 in a rotation stopped state by finger operation is integrated with the feeding shaft 23 by fitting hexagonal cross sections. Equipped in a rotating state. Holding member 81
Is constituted by a circular grip 81 having a non-slip irregularity formed on the outer circumference. With the grip 81 held with one hand to prevent the feeding shaft 23 from rotating, the other hand is used to rotate the rotation adjusting tool. By rotating the 70, the delivery amount can be adjusted by each delivery mechanism 19 independently of the presence of the one-way clutch 33. In addition, the grip 81 is provided for each feeding shaft 23, and a total of three grips 81 are provided.

As shown in FIG. 2, a cylindrical blower pipe 45 is disposed in front of the casing 22 with its longitudinal direction extending along the width of the vehicle body. The blower 20 is provided so as to be supported by the horizontal frame 30, and the wind of the blower 20 provided at one lateral end of the blower pipe 45 is supplied into the blower pipe 45. The blower 20 uses an electric motor (not shown) as a drive source, and a start switch 84 for switching ON / OFF of the blower 20 is provided via a stay 85 at a position in front of the hopper 18 near the blower 20 as shown in FIG. The operation can be performed by extending the hand from the driver seat 67.

As shown in FIG. 3, a fertilizer supply section 51 communicating with the lower end outlet 50 of the funnel-shaped guide section 26 and opening toward the rear of the machine body is formed, and the fertilizer hose 21 is inserted and mounted therein. On the front side of the fertilizer supply unit 51, an air supply unit 52 that connects the lower end outlet 50 and the inside of the blower pipe 45 is formed, and the air supply unit 52 and the fertilizer supply unit 51 are connected to the front and rear of the vehicle body. It is formed so as to be continuous in a substantially straight line along the direction. A discharge section 54 is formed below the lower end outlet 50 to form a discharge path 53 that connects the lower end outlet 50 to the inside of the discharge pipe 48.
Incidentally, the other end of the blower pipe 45 is normally closed by a lid 45a which can be freely opened and closed.

The path switching plate 55, which is capable of switching between the feeding state in which the powder and granular fertilizer fed from the feeding mechanism 19 is guided to the fertilizing hose 21 and the discharge state in which the fertilizer is guided toward the discharge path 53, is connected to the feeding mechanism. It is provided corresponding to each of the nineteen. The path switching plate 55 is pivotably supported around the left and right axis X, and can be switched between a supply position and a discharge position by operating a switching lever 56 provided outside the guide portion 26. The supply position is a position where the discharge route 53 is closed and the fertilizer supply unit 51, that is, the fertilizer hose 21 and the blower pipe 45 communicate with the lower end outlet 50, and the discharge position is the internal passage of the fertilizer supply unit 51. At a position where the discharge path 53 and the blower pipe 45 communicate with the lower end outlet 50.

Each discharge section 54 is provided with a discharge pipe 48 for guiding and discharging the discharged fertilizer downward and forward of the machine body, and each discharge pipe 48 is connected to each of the discharge pipes 48 in FIGS.
As shown in the figure, three pipes each on the left and right sides are one large-diameter confluence pipe 4 at the lower side in the fertilizer guide direction.
The fertilizer is joined to 8a and distributed to both right and left sides, so that the fertilizer is discharged from a common fertilizer discharge port 49.

When the fertilizer is applied during the seedling planting operation, the path switching plate 55 is switched to the supply position and the blower 20 is turned on.
Of the fertilizer fed by a predetermined amount from the feeding mechanism 19 is sent out from the lower end outlet 50 through the fertilizer supply unit 51 and the fertilizer hose 21 toward the groove generator 17 by wind power and supplied to the field. You do it.

After completion of the planting operation, the fertilizer hopper 1
In order to collect the fertilizer remaining in the hopper 8, the switching lever 56
Is switched to the discharging position, and the brush 27 of the feeding mechanism 19 is switched to the fertilizer discharging position separated from the feeding rotating body 25 to discharge the fertilizer. From 50, it passes through the discharge path 53 and the discharge pipe 48, and is discharged from the fertilizer discharge port 49 to the outside. Therefore, if a collection container or the like is positioned corresponding to the fertilizer discharge port 49, fertilizer can be collected.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter.

FIG. 2 is a rear view of the fertilizer application device.

FIG. 3 is a longitudinal side view of the fertilizer supply unit.

FIG. 4 is a side view showing a fertilizer application clutch and a lock device.

FIG. 5 is a plan view showing a fertilizing clutch.

FIG. 6 is a cross-sectional view showing a feed amount adjusting structure and a grip structure.

FIG. 7 is a front view showing the lock mechanism in a retracted position.

FIG. 8 is a plan view showing the lock mechanism in the operation position.

FIG. 9 is a plan view showing the operation of the lock mechanism.

FIG. 10 is a side view of a main part showing a support structure of the fertilizer application device.

FIG. 11 is a partial perspective view showing the shape of a vertical frame.

FIG. 12 is a side view showing a positional relationship between a fertilizer device that can be viewed from the rear and a rear wheel fender.

[Explanation of symbols]

 Reference Signs List 4 Planting part 17 Groove device 18 Hopper 19 Feeding mechanism 21 Supply conduit 29 Support member 86 Mounting part 87 Mounting surface F Airframe

 ──────────────────────────────────────────────────の Continued on the front page (72) Yoshiyoshi Nakagawa, 64, Ishizukita-cho, Sakai-shi, Osaka Inside the Kubota-Sakai Plant (72) Inventor Tetsuya Matsumura 64, Ishizukita-cho, Sakai-shi, Osaka In-house (72) Inventor Rinsho Sakano 64, Ishizukita-cho, Sakai City, Osaka Prefecture Inside the Kubota Sakai Works, Ltd. Shinichiro Inoue 64, Ishizukita-cho, Sakai-shi, Osaka Inside Kubota Sakai Works

Claims (2)

[Claims] 1. A hopper for storing powders and granules, a feeding mechanism for feeding out the powders and granules of the hopper, and a supply pipe for supplying the fed-out powders to a groove generator provided in a planting section. The feeding mechanism is mounted on an intermediate portion in the front-rear direction of the traveling body via a stay supporting the same, and the position of a mounting portion of the stay on the body in the front-rear direction of the feeding mechanism in a side view. Powder feeder approximately matched to the position of the center of gravity. 2. The powder and granular material supply device according to claim 1, wherein the mounting portion is fixed while being mounted on an uneven plane of the body frame.