JP3012605B2 - Rice transplanter with fertilizer application - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter equipped with a fertilizer, which is provided with a fertilizer for feeding fertilizer to a field as a seedling is planted.

[0002]

2. Description of the Related Art In a rice transplanter with a fertilizer device as described above, a fertilizer device is fixed at a predetermined position, and the predetermined position is set as a work position of a fertilizer device for feeding fertilizer into a field, and fixed at the work position. Many fertilizers are configured to send fertilizer to a field from the fertilizer application devices.

[0003]

In a rice transplanter with a fertilizer device as described above, the fertilizer device is often located close to the working position of the fertilizer device. It may be difficult to perform maintenance work on other devices. The present invention relates to a rice transplanter with a fertilizer application device,
The purpose of the present invention is to provide a configuration that facilitates maintenance work of the fertilizer and other nearby devices, and to appropriately transmit power to the fertilizer.

[0004]

A feature of the present invention resides in a rice transplanter with a fertilizer application device, which is configured as follows. Equipped with a fertilizer that feeds fertilizer to the field as the seedlings are planted, and maintains a posture in the working position between the working position for feeding the fertilizer into the field and the non-working position that is separated upward from the working position. A lifting mechanism for movably supporting the fertilizer device, and an output unit disposed at a predetermined distance laterally below the input unit of the fertilizer device at the working position, In the working position of the fertilizer applicator, the lower part of the drive rod can be connected to and disconnected from the output part, and the lower part of the drive rod is connected to the output part. The power is transmitted as push-pull power via a drive rod to an input unit of the fertilizer application device.

[0005]

[I] According to the features of the first aspect, the fertilizer applicator located at the work position can be moved to the non-work position, which is separated from the work position by a lifting mechanism. As described above, by separating the fertilizer application device from the work position to the non-work position, the maintenance work of the fertilizer device can be easily performed without being disturbed by other devices arranged near the work position. be able to. In addition, when a device requiring maintenance is arranged near the work position, the maintenance work of this device can be easily performed without disturbing the fertilizer application device.

According to the first aspect of the present invention, the fertilizer applicator can be vertically moved between the working position and the non-working position separated upward by the lifting mechanism. In addition, the fertilizer does not protrude largely in the lateral direction from the range of the rice transplanter with the fertilizer.

According to the first aspect of the present invention, when the fertilizer is moved between the working position and the non-working position separated upward by the lifting mechanism, the fertilizer is moved while maintaining the posture in the working position. Since the fertilizer can be operated, the fertilizer in the hopper of the fertilizer does not spill when moving the fertilizer, and it is not necessary to take out the fertilizer from the hopper of the fertilizer for the moving operation.

[II] When the power of the output unit different from the fertilizer is transmitted to the input unit of the fertilizer located at the work position to drive the fertilizer, the following [I] is applied. When moving the fertilizer applicator to the non-work position, which is separated from the work position upward as described, it is necessary to remove the transmission system from the output section to the input section of the fertilizer apparatus. In this case, if the transmission chain is wound around the output section and the input section of the fertilizer applicator, or if the bevel gear mechanism and the transmission shaft are erected, the transmission chain and the transmission shaft can be removed so that the transmission can be removed. A complicated attachment / detachment structure is required, and this complicated attachment / detachment structure causes an increase in weight.

According to the first aspect of the present invention, a drive rod is connected between the output section and the input section of the fertilizer, and the power of the output section is transmitted to the input section of the fertilizer as push-pull power by the drive rod. And a structure in which the connection between the output unit and the input unit by the drive rod is released by obtaining a configuration in which the connection can be disconnected.

[III] When the connection between the drive rod and the input unit of the fertilizer is released, the connection between the drive rod and the input unit of the fertilizer is released. If the power is erroneously output from the output unit, the long drive rod may be swung while being pushed and pulled, causing damage to the drive rod and the like. is there.

When the connection between the lower portion of the drive rod and the output portion is made releasable as in the first aspect, the power is erroneously output from the output portion when the connection between the lower portion of the drive rod and the output portion is released. Is output, the driving rod is separated from the output portion, so that the driving rod is not swung while being pushed and pulled.

[IV] If the output section is located just below the input section of the fertilizer at the working position, the fertilizer at the non-working position (the connection between the drive rod and the output section is released, and the When the drive rod moves downward from the input unit to the working position below, the lower part of the drive rod may contact the output unit, causing damage to the lower part of the drive rod and the output unit. is there.

According to the first aspect of the present invention, since the output section is disposed below the input section of the fertilizer at the working position and at a position separated by a predetermined distance in the lateral direction, the fertilizer apparatus at the non-working position is provided. (When the connection between the drive rod and the output unit is released and the drive rod hangs down from the input unit of the fertilizer applicator) to the lower working position, the lower part of the drive rod It is unlikely that a state where the lower part of the drive rod comes into contact with the output unit when the fertilizer is moved to the working position after reaching the position about a predetermined distance in the lateral direction.

When the fertilizer is moved from the non-working position to the working position as described above, the lower portion of the drive rod has reached a position laterally separated from the output portion by a predetermined distance. The lower part of the drive rod can be brought to the position of the output part by only slightly moving the lower part of the drive rod in the lateral direction, and the lower part of the drive rod can be easily connected to the output part. Thus, after moving the fertilizer application device from the non-working position to the working position, it is not necessary to manually bring the lower part of the drive rod to the output unit and connect it to the output unit.

[0015]

According to the first aspect of the present invention, in the rice transplanter with the fertilizer device, the fertilizer device is configured to be movable to a non-work position that is separated from the work position by an upward movement.
The maintenance work of the fertilizer and the equipment which needs to be maintained near the work position can be easily performed, and the workability of the rice transplanter with the fertilizer can be improved.

According to the first aspect of the present invention, it is possible to move the fertilizer applicator to a non-working position which is separated upward without any trouble without extending the fertilizer appreciably in a lateral direction. Could be improved. According to the feature of claim 1, when the fertilizer is moved between the working position and the non-working position separated upward, the fertilizer of the hopper of the fertilizer does not fall out.
There is no need to remove the fertilizer from the hopper of the fertilizer applicator for the moving operation, and there is no waste of the fertilizer, and the occurrence of rust and the like due to the spilled fertilizer adhering to the metal part is prevented.

According to the first aspect of the present invention, the output portion and the input portion of the fertilizer applicator are connected by a push-pull type drive rod, and the connection can be disconnected. Since the structure for releasing the connection with the input unit can be simplified, it is advantageous in terms of weight reduction. Further, the operation of releasing the connection state and the operation of returning to the connection state can be easily performed, so that the operability is improved. By configuring the connection between the lower part of the drive rod and the output part to be releasable, it is possible to prevent the drive rod from being swung while being pushed and pulled, and to prevent damage to the drive rod and the like. .

According to the first aspect of the present invention, the output unit is disposed below the input unit of the fertilizer device at the work position and at a position separated by a predetermined distance in the lateral direction, so that the fertilizer device is moved from the non-work position. When moved to the work position, the lower portion of the drive rod reaches a position laterally separated from the output portion by a predetermined distance, and it is less likely that the lower portion of the drive rod contacts the output portion. Therefore, it is possible to prevent the lower portion of the drive rod and the output portion from being damaged.

According to the first aspect of the present invention, when the fertilizer is moved from the non-working position to the working position, the lower portion of the drive rod reaches a position laterally separated from the output portion by a predetermined distance. Just by moving the lower part of the drive rod a little in the horizontal direction, the lower part of the drive rod can be brought to the position of the output part, and the lower part of the drive rod can be easily connected to the output part, so operability is improved. It was even better.

[0020]

Embodiments will be described below with reference to the drawings. FIG.
Shows the rear part of a rice transplanter with a fertilizer application device. In this rice transplanter with a fertilizer application device, a seedling planting device 2 is connected to a rear portion of a traveling machine body (not shown) via a link mechanism (not shown) so as to be vertically movable, and a fertilizer device 3 is provided behind the seedling planting device 2. It is configured to be mounted. The seedling planting apparatus 2 includes a seedling rest 5 that reciprocates horizontally with a fixed stroke with respect to a planting transmission case 4 that also serves as a frame. Attaching mechanism 6, and a plurality of leveling floats 7
And the like.

As shown in FIGS. 1 and 3, the planting mechanism 6
At both ends of the rotating case 8 driven to rotate about the horizontal axis,
A planting arm 10 having a planting claw 9 at the tip is rotatably supported, and the planting claw 9 is substantially elliptical in a side view by a gear mechanism (not shown) as the rotating case 8 is driven to rotate. The planting operation is performed while drawing a trajectory.

As shown in FIGS. 1 and 2, at the lower part of the seedling mounting surface 5a of the seedling mounting base 5, a seedling holding stay 11 for preventing the seedlings from floating is placed in an operating position close to the seedling mounting surface 5a. And a retreating posture separated upward and outward, and is provided so as to be capable of switching and swinging around a horizontal axis X1 at a rear portion. A seedling holding stay 1 is attached to a support shaft 11a which is erected over a bracket erected at a partition portion of each planting strip of the seedling rest 5.
1 is fixed, and the posture of the seedling holding stay 11 is switched by rotating the support shaft 11a with the operating tool 11b.

As shown in FIGS. 1 and 3, the fertilizer applicator 3
A hopper 12 for storing powdered and granular fertilizer is provided at every upper portion, and a feeding mechanism 1 for each planting line is provided below the hopper 12.
3, a downflow pipe 1 that guides the fed fertilizer down into a ditch created in a field scene by a ditcher 14
5 is provided. The feeding mechanism 13 includes, in a feeding case 16, a feeding roll 17 having a concave portion for entering fertilizer formed on an outer peripheral surface thereof.
7 is rotated by the drive shaft 18 so that only the fertilizer stored in the recess flows down through the downflow pipe 15.

As shown in FIGS. 1 and 3, a support member 19 (corresponding to an output portion) laid across the side of each planting arm 10 in the planting mechanism 6 is offset from the rotation axis of the rotating case 8. The driving rod 20 is connected to the centered position, and the driving rod 2
0 is connected to the drive shaft 18 so that the drive shaft 18 is driven to rotate. In this case, as shown in FIG. 1 and FIG.
The support member 19 is configured to be located below the input unit and at a predetermined distance in the lateral direction.

The fertilizer applicator 3 has a work position in which all planted streak portions are integrally disposed close to the upper side of the planting mechanism 6 and a non-work position which is separated upward from the work position. , Are movably supported. As shown in FIGS. 1 and 3,
A pair of left and right support rails 2 from the rear side of the planting transmission case 4
3 (corresponding to an elevating mechanism) is erected, and a horizontal frame 25 integrally connecting and fixing the fertilizer applicator 3 of each planting streak via a support arm 24 is connected to a pair of left and right movable frames 26. The movable frame 26 is movably supported by the support rail 23 by a pair of upper and lower guide rollers 27.

As shown in FIGS.
6 can be switched between an engagement position where it enters the engagement hole 28 formed in the support rail 23 and a slide operation position where the engagement is released by swinging upward, and the engagement side Locking device 29 biased by a spring (not shown)
The support rail 23 is provided with an engagement hole 28 at each of a position for holding the fertilizer applicator 3 at the lower working position and a position for holding the fertilizer device 3 at the non-working position that has been raised to the maximum. When it is moved to an upper non-working position, it is configured to be automatically engaged and held. When the fertilizer applicator 3 is raised to the non-working position, the fertilizer applicator 3 is set so as not to interfere with the operation of switching the seedling holding stay 11 to the retracted posture (see FIG. 2).

The planting mechanism 6 and the cultivator 14 are provided in a fixed position, so that the linkage is released as the fertilizer applicator 3 is moved to the non-working position as described above. It is configured. As shown in FIGS. 1, 2, 3, and 4, a separation part 30 is formed in a part of the flow path of the fertilizer, and a lower part of the separation part 30 is formed in a trumpet shape.
It is configured such that it can be easily inserted into the device 5 and separated upward.

The drive rod 20 is configured such that the connection at the end on the planting mechanism 6 side can be easily released. As shown in FIGS. 6 and 7 (a) and (b), the connecting member 32 of the ball joint 31 provided at the end of the driving rod 20 is rotatably fitted to the support member 19. The tubular body 33 is mounted, and the stopper 33 attached to the support member 19 is configured to prevent the tubular body 33 from coming off. The stopper member 34 is slidably provided between a retaining engagement position and a disengagement position by engagement of the pin 35 and the elongated hole 36, and the stopper member 3 is provided.
By sliding 4 and pulling out cylinder 33,
The connection of the end of the drive rod 20 on the side of the planting mechanism 6 can be easily released.

The disconnected drive rod 20 is configured so as not to be in the way when the fertilizer applicator 3 is moved to the upper non-working position. As shown in FIG.
The feeding mechanism 13 is covered with a cover 45 that can swing open and close around a horizontal axis X2 on the rear side of the fertilizer application device 3, and a locking hook 46 is provided on the cover 45. As shown in FIGS. 2 and 9, by locking the drive rod 20 to the locking hook 46 in a state where the lid 45 is opened, the drive rod 20 is held in a posture in which the upper part of the seedling rest 5 is opened. Will be retained.

As shown in FIGS. 4 and 5, a lateral support rod 37 is connected and connected over the upper portions of the left and right support rails 23.
A bracket 38 (FIG. 3)
The gas spring 39 is supported via the reference spring).
One end of a wire 40 is connected to each of the lower portions of the left and right movable frames 26 (see FIG. 3), and the wire 40 is
, Pulleys 43 and 42 supported on the left and right sides, a pulley 43 supported on an intermediate portion, and a gas spring 39.
The other end of each of the wires 40 is connected to the lateral support rod 37 by being wound around a movable pulley 44 supported at the distal end of the movable rod 39a.

An auxiliary biasing force is applied to the wire 40 in a direction in which the movable frame 26 is lifted upward by the lateral movement biasing force of the movable pulley 44 due to the biasing force of the gas spring 39. Therefore, when the fertilizer applicator 3 is moved from the lower working position to the upper non-working position, the manual operation can be performed lightly even if the lifting operation is performed by a manual operation.

When the fertilizer applicator 3 is moved to the upper non-working position and the operation of taking out the seedlings remaining on the seedling rest 5 is performed, the fertilizer applicator 3 is erroneously moved downward along the support rail 23. Is provided. As shown in FIGS. 10A and 10B, a detection switch S is provided near the support shaft 11a of the seedling holding stay 11 to detect that the seedling holding stay 11 is switched from the operating position to the retracted position.
W is provided, and when the detection switch SW is in the detection state, the electromagnetic solenoid SL that is locked and held by the guide roller 27 while the fertilizer application device 3 is held in the non-working position is attached to the support rail 23. Have been. The electromagnetic solenoid SL is configured to release the holding state and allow the fertilizer applicator 3 to move downward when the seedling holding stay 11 is returned to the operating position and the detection switch SW is deactivated. .

In the claims, reference numerals are provided to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a seedling planting device and a fertilizer application device.

FIG. 2 is a side view showing a state where the fertilizer applicator is moved to an upper non-working position.

FIG. 3 is a rear view of the fertilizer applicator in a lower working position.

FIG. 4 is a rear view showing a state in which the fertilizer applicator has been moved to an upper non-working position.

FIG. 5 is a plan view near a gas spring.

FIG. 6 is a rear view showing a state in which the drive rod is connected to and disconnected from the support member.

FIG. 7 is a side view showing a state in which the drive rod is connected to and disconnected from the support member.

FIG. 8 is a side view of the vicinity of the lock.

FIG. 9 is a rear view of the vicinity of a locking hook in the lid.

FIG. 10 is a side view showing a structure for preventing a state where the fertilizer applicator in the non-working position is erroneously moved to the lower working position.

[Explanation of symbols]

 3 Fertilizer 19 Output unit 20 Drive rod 23 Elevating mechanism

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-63311 (JP, A) JP-A 54-39308 (JP, U) JP-A-3-22616 (JP, U) JP-A 63-63 186120 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 15/00-23/04 A01C 11/00 302

Claims (1)

(57) [Claims] A fertilizer device (3) for feeding fertilizer to a field with planting of seedlings, comprising: a working position for feeding the fertilizer to the field; and a non-working position upward away from the working position. In the state where the posture in the working position is maintained, the lifting mechanism (23) for movably supporting the fertilizing device (3) is provided, and below the input unit of the fertilizing device (3) in the working position. The output unit (19) is disposed at a position separated by a predetermined distance in the lateral direction, and the drive rod (2) is connected to the input unit of the fertilizer application device (3).
0), the lower part of the drive rod (20) can be connected to and disconnected from the output part (19) in the working position of the fertilizer device (3), and the lower part of the drive rod (20) Is connected to the output section (19), and the output section (19)
A rice transplanter with a fertilizer device configured to be transmitted to the input portion of the fertilizer device (3) via the drive rod (20) as push-pull power.