JPH0723625A - Rice transplanter with fertilizer applicator - Google Patents

Abstract

PURPOSE:To provide a rice transplanter, equipped with a fertilizer applicator. and capable of performing simple changeover operation in spite of easy taking out of residual seedlings on a seedling-carrying platform. CONSTITUTION:This rice transplanter equipped with a fertilizer applicator is obtained by supporting the fertilizer applicator in a vertical frame standing from a seedling planting device so as to enable the free change thereof in vertical positions over an operating position on the lower side to a position evacuating to the upper side, dividing each push-pull linking member into the upper and lower parts at the middle part thereof between a planting mechanism and a fertilizer delivering roll 15, simultaneously forming protrusions 44 in the direction intersecting the push-pull direction in either of vertical divided parts (14a) and (14b) of the push-pull linking member and, on the other hand, installing a nipping tool 45, provided with fitting holes 43 fitting in the protrusions 44 and simultaneously capable of freely performing the changeover from a state of elastically nipping the mutual respective divided parts (14a) and (14b) to a state of releasing the nipped state in a state of the protrusions 44 fitted in the fitting holes 43.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to install a fertilizer application at a position above a planting mechanism for taking out seedlings from a lower end of a seedling stand in a seedling planting device, and pushing and pulling a linkage from the planting mechanism. The present invention relates to a rice transplanter with a fertilizer application device configured to rotate a fertilizer feeding roll in a fertilizer application device in a linked manner via members.

[0002]

2. Description of the Related Art In the rice transplanter with the above fertilizer application, conventionally, the fertilizer application is arranged in a fixed position by a supporting frame erected from a planting transmission case.
The push-pull linking member for driving the fertilizer application has always been pivotally connected.

[0003]

In the above-mentioned conventional structure, since the tall fertilizer application device is present on the rear upper side of the seedling stand over almost the entire planting width, the planting work is completed in a certain field, for example. When performing the work of taking out the placed seedlings that are slightly left on the seedling stand later, this fertilizer application is a hindrance and the work becomes difficult. The present invention eliminates the above-mentioned inconveniences, and reasonably configures the separation and connection structure of the push-pull linkage member according to the structural improvement therefor, thereby preventing the workability from decreasing and performing the feeding operation. The purpose is to be able to do smoothly.

[0004]

The feature of the present invention is that in the rice transplanter with a fertilizer application described at the beginning, the fertilizer application work is performed on a lower side of a vertical frame standing from the frame of the seedling planter. The push-pull linking member is vertically divided between a position and a position retracted upward, and the push-pull linkage member is vertically divided in the middle thereof. A protrusion is formed along a direction that intersects the push-pull direction, and an engaging hole that fits into this protrusion is formed on the other side, and in the state where the protrusion fits into the engaging hole, each of the divided portions is formed. The point is that a holding tool is provided that can be switched between a state of elastically sandwiching and supporting each other and a state of releasing the sandwiched state.

[0005]

[Function] If the fertilizer application is set to the working position on the lower side, the downflow route between the fed fertilizer and the field scene where the fertilizer is supplied is shortened, so that the fertilizer can be smoothly fertilized without causing clogging. If you can take out the placed seedlings that are a little left on the seedling stand after the work is completed, you can relocate the fertilizer application to the upper retracted position, and the outside of the lower part of the seedling stand will be greatly opened, and the seedling removal work Can be done easily. In addition, since the push-pull linkage member that needs to be separated when the fertilizer application is slid upward is divided into upper and lower parts in the middle thereof, it is compared with the case where the connecting members are separated at the pivotal connection point where they rotate relative to each other. It is easy to deploy mudguards, etc. to the connection point in the connected state, and there is no risk of accelerating wear due to infiltration of mud or fertilizer powder into the pivotal connection point due to separation. . Further, in the connection / disconnection work of the push-pull linkage member, the protrusion formed on either one of the upper and lower split portions is fitted into the engaging hole formed on the other along the direction intersecting the push-pull operation direction, and the elastic member is held by the clamp. Can be easily carried out by sandwiching and supporting both divided parts, or vice versa, and for push-pull operation, strong connection strength can be obtained by engagement between the projection and the engagement hole. Since the pulling-out operation does not act on the elastic support by the holding tool, the connection state can be reliably maintained.

[0006]

[Effects of the Invention] Therefore, it is possible to perform a smooth fertilization work in which fertilizer clogging does not easily occur during seedling planting work, but the removal of the remaining seedlings on the seedling stand after the work interferes with the tall fertilizer application device. It can be easily done without being
Moreover, by separating and connecting the driving push-pull linkage members that have to be separated when moving the fertilizer application device with a rational structure, scattered mud solidifies and it becomes difficult to perform separation work, and the fertilizer feeding drive system It has become possible to provide a rice transplanter with a fertilizer application, which is less likely to cause adverse effects such as reduced durability and can smoothly drive for fertilizer feeding, and can be easily connected and separated.

[0007]

Embodiments will be described below with reference to the drawings. Figure 1
Shows the rear part of the riding type rice transplanter with fertilizer application. This rice transplanter is configured by connecting a seedling planting device 1 to a rear portion of a riding type traveling machine body (not shown) through a link mechanism, and mounting a fertilizer application device 2 on the upper rear portion thereof. Seedling planting device 1
Is a seedling stand 4 that reciprocates laterally with a constant stroke with respect to the planting case 3 that also serves as a frame, and five planting mechanisms 5 that take out one seedling from the lower end of the seedling stand 4 and plant it.
It is configured in a five-row planting format with a leveling float 6 for leveling a field scene, and the fertilizer application device 2 has five feeding mechanisms 8 below the upper fertilizer storage hopper 7 for feeding a predetermined amount of fertilizer.
A grooving device 10 for continuously applying fertilizers fed from each feeding mechanism 8 through a downflow pipe 9 to create a fertilization groove in a field scene.
It is configured to guide the flow toward. Each of the planting mechanisms 5 has a claw support case 13 in which a planting claw 12 is attached to both side ends of a rotary case 11 that is rotationally driven around a horizontal axis.
Is rotatably supported relative to each other, and power is supplied through a chain transmission mechanism (not shown) installed in each planting case 3, and the planting claws 12 have a substantially elliptical locus in a side view by a gear mechanism (not shown). It is constructed so that seedlings can be planted by drawing.

The fertilizer feeding mechanism 8 is a push-pull linkage that is pivotally connected to a portion slightly eccentric from the rotation axis of the connecting plate 40 that is erected and connected across the support shafts of the claw support cases 13 that rotate integrally. The feeding roll 15 is rotationally driven via the member 14 and is configured to feed the fertilizer by a predetermined amount according to the planting operation. More specifically, as shown in FIGS. 3 to 5, a large-diameter gear 23 is attached to the drive shaft 22 on which the feeding roll 15 is integrally rotatably fitted, and the gear 2 is attached.
A small-diameter gear 24 that engages with 3 is attached to a rotary support shaft 25, and an arm 26 fixed to the rotary support shaft 25 and the rotary case 11 are attached.
Is connected to the middle part thereof via a push-pull linkage member 14. The arms 26 are provided at two positions on the left and right, and the arms 26, 26 and the push-pull linkage members 14, 14 are provided.
The pivot points of the left and right rotating cases 11 are out of phase with each other by about 90 degrees. Therefore, the rotary support shaft 25 is also rotated in one direction in the same direction as the rotary case 11 is driven to rotate, and the feeding roll 15 is rotated by a predetermined pitch by gear engagement. On the upper side of each of the planting mechanisms 5, a mud-avoiding cover 41 is provided to prevent the mud soil in the field from being scraped up and scattered during the planting operation. The mud-preventing cover 41 is made of a synthetic resin material,
It is configured to be mounted and elastically retained by a supporting member 42 which is fixedly extended from.

The two planting mechanisms 5 and 5 located on both the left and right sides are arranged opposite to each other on the planting cases 3 and 3 located on both the left and right sides so that they can be integrally rotated. The rotation support shafts 25 of the two feeding mechanisms 8, 8 located on both the left and right sides are integrally formed, and one planting mechanism located on the center side is the planting case 3 on the center side. The rotation supporting shaft 25 of the feeding mechanism 8 corresponding thereto is driven independently. Therefore, as shown in FIG. 3, the rotation support shafts 25 of the two feeding mechanisms 8 on both the left and right sides are interlockingly connected by the push-pull linking members 14, 14 from the corresponding planting mechanisms 5, 5, respectively. Has been done. The rotation support shaft 25 of the feeding mechanism 8 on the center side is linked to the corresponding planting mechanism 5 via the push-pull linkage member 14 on one side, and the planting case 3 on the other side.
The eccentric crank arm 50 driven by a rotation shaft for driving the planting mechanism is interlocked with the side opposite to the planting mechanism arranging portion.

The fertilizer applicator 2 is located immediately above the planting mechanism 5 and is located at a lower working position (see FIG. 1) overlapping the lower end of the seedling stand 4, and a seedling holding rod for holding the placed seedlings during the planting work. 39 is retracted to the outside, and is provided slidably up and down over an upper retracted position [see FIG. 2] that opens the lower end of the seedling placing table 4, and remains on the seedling placing table 4 at the end of planting work. It is constructed so that the seedlings can be taken out easily. More specifically, the fertilizer application device 2 is supported by a horizontal frame 18 that is slidably supported by a pair of left and right vertical frames 16 that are erected from the planting case 3 via guide rollers 17 and vertical arms 38, and a pair of left and right frames is provided. The drive shaft 22 and the rotation support shaft 25 are rotatably supported by the brackets 27, 27. Also, vertical frame 1
6 is provided with a lock operation tool 21 that engages with one of the engagement holes 19 and 20 formed in the upper and lower ends of the fertilizer application device 2 to fix the fertilizer application device 2 in the second position, and when changing the vertical position, this lock operation tool is used. The lock of 21 is released, and the fertilizer application device 2 is manually lifted and operated. The left and right vertical frames 1
An air cylinder 30 is attached to the horizontal rod 28 that is erected and connected across the upper portions of the reference numerals 6 and 16 to assist in manually lifting the fertilizer application device 2 by pushing it upward through an operating wire 29.

A separable connecting portion S is provided in the upper middle portion of the push-pull linking member 14 for driving the fertilizer feeding, and the connecting portion S is configured to separate before the sliding movement of the fertilizer application device 2. There is. In detail,
As shown in FIGS. 6 and 9, a pair of insertion holes 43 are formed in the pivot link 14a [one of the upper and lower divided portions] which is pivotally connected to the arm 26 for driving the feeding mechanism at a predetermined interval in the longitudinal direction. , 43 [an example of the engaging hole] is formed laterally, and the lower end portion is pivotally connected to the connecting plate 40.
b These through holes 4 are provided on the upper side of [the other of the upper and lower divided parts].
A pair of connecting pins 44 and 44 (an example of protrusions) inserted into the shafts 3 and 43 are provided in a protruding manner, and the connecting pins 44 and 44 are inserted into the through holes 43 and 43, and are pivoted to the pivot link 14a. A clamp member 45 (an example of a clamp) that is freely attached can elastically clamp the upper end of the rod that is crushed into a flat shape to prevent the retainer from being pulled out and set the connected state. The connection portion S is configured so that the connection can be easily released by holding and rotating. One of the insertion holes 43, 43 (the lower one in the embodiment) is formed as a long hole along the push-pull operation direction to reduce the lateral rattling at the time of connection and facilitate connection work. I can do it. The push-pull linkage member 1 is formed by the pivot link 14a and the rod 14b.
Make up 4. Further, as shown in FIG. 10, the receiving member 46 for locking and holding the rod 14b whose upper side is free in the separated state is tilted backward and slanted in an integrated manner from the lateral side end of the supporting member 42 of the mud avoiding cover 41. It is connected to. still,
A pipe receiving member 47 for receiving and supporting the downflow pipe 9 is integrally connected to the support member 42.

Prior to the sliding movement of the fertilizer application device 2, the fertilizer flow-down path is separated on the way. That is, the lower delivery port 8a of the delivery mechanism 8 and the downflow pipe 9
The connection point with the upper side opening 9a is covered with the rubber boot G, and the connection point is separated as it is by the upper slide of the fertilizer application device 2. Then, as shown in FIGS. 7 and 8, the upper end portion of the downflow pipe 9 is externally fitted and supported by the cylindrical support portion 47 a extending from the pipe receiving member 47, and from the inner side of the pipe. The rubber clip 48 is inserted and mounted in a state of penetrating these to prevent it from coming off.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of the rear part of rice transplanter

FIG. 2 is a side view of the fertilizer applicator in an upper slide state.

[Figure 3] Rear view of the fertilizer applicator

FIG. 4 is a side view showing a drive system of the feeding mechanism.

FIG. 5 is a side view of the feeding mechanism.

FIG. 6 is a side view of the feeding mechanism in a separated state.

FIG. 7 is a side view of the upper part of the downflow pipe.

FIG. 8 is a plan view of the upper part of the downflow pipe.

FIG. 9 is a cutaway plan view of a connection portion.

FIG. 10 is a plan view of a supporting member.

[Explanation of symbols]

 1 Seedling planting device 2 Fertilizer application device 3 Frame 4 Seedling stand 5 Planting mechanism 14 Push-pull linking members 14a, 14b Vertically divided part 15 Fertilizer feeding roll 43 Engagement hole 44 Protrusion 45 Clamping tool

Claims (1)

[Claims] 1. A fertilizer application device (2) is attached to the upper part of a planting mechanism (5) for taking out seedlings from a lower end portion of a seedling placement table (4) in the seedling planting device (1) and mounting the fertilizer application device (2). The fertilizer feeding roll (1) in the fertilizer application device (2) is interlockingly linked from the attachment mechanism (5) through the push-pull linkage member (14).
A rice transplanter with a fertilizer application configured to rotate 5), wherein the fertilizer application (2) is mounted on a vertical frame (16) standing upright from the frame (3) of the seedling planter (1). Is supported so as to be vertically movable between a working position on the lower side and a position retracted to the upper side, and the push-pull linkage member (14) is vertically divided in the middle thereof, and at the same time, the push-pull linkage member (14). Upper and lower divided parts (14a), (14
A protrusion (44) is formed on either one of the protrusions (b) along a direction intersecting the push-pull direction, and the protrusion (44) is formed on the other.
4) The engaging hole (43) that fits in 4) is formed, and
With the projection (44) fitted in the engagement hole (43), the divided portions (14a) and (14b) are elastically sandwiched and supported, and the sandwiched state is released. A rice transplanter with a fertilizer application equipped with a switchable clamp (45).