JP2000287512A - Seedling placing stand for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in which an operation for folding divided seedling placing stands at both right and left sides is troublesome in the case of a rice transplanter of >=8 row planting which has a seedling placing stand of folding type. SOLUTION: When a divided seedling placing stand 16D capable of attaching and detaching a seedling placing stand of two rows of at one side of right or left is constituted and the divided seedling placing stand 16D can be placed and fixed at the upper side of a residual main seedling placing stand 16M to form a rice transplanter of 8 row planting, seedling mat pressers 36 to be arranged on each of rows of the seedling placing stand are integrally connected from the divided seedling placing stand 16D side for two rows, three rows and three rows. Handles 40 are set at both right and left sides of the divided seedling placing stand 16D. One of the right and left handles 40 is installed at a higher position than the other. Both the right and left handles are arranged by laying the center of gravity of the divided seedling placing stand 16D between the handles 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanting machine in which the right and left sides of a seedling table are housed and the left and right widths are reduced.
It relates to a rice transplanter that can be transported.

[0002]

2. Description of the Related Art Conventionally, in a multi-row type rice transplanter having eight or more rows, when transporting, moving, or storing, the seedling mounting table protrudes left and right and laterally, and the seedling mounting table becomes an obstacle. Therefore, a technique is known in which a seedling mounting table and a guide rail are configured to be folded. For example, JP-A-10-
No. 127121. The seedling platform of this technology folds the two-stage seedling platform on the left and right sides so as to be placed on the central seedling platform while moving in parallel, and the left and right guide rails and bumpers fold upward or forward. Was configured as follows.

[0003]

However, since the conventional seedling table folding mechanism is configured to move in parallel by a link mechanism, the mechanism becomes complicated, and the left and right seedling mounting tables are connected to the center seedling mounting side. The structure was such that it was folded and locked each other, so that the number of operation procedures was increased and the operation was troublesome. In addition, seedling mat holders are arranged on the seedling mounting table for each row, and these are opened every 1 or 2 rows. Therefore, it is troublesome to take out the remaining 8 rows of seedlings at the end of work. Had to work.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in claim 1, in the rice transplanter capable of reducing the length of the seedling mounting table in the left-right width direction,
A divided seedling mounting table is configured such that two left and right one-sided seedling mounting tables are detachable, and the divided seedling mounting tables can be placed and fixed above the remaining main seedling mounting tables. In claim 2,
An eight-row rice transplanter, in which two, three, and three rows of seedling mat retainers arranged on each row of the seedling mounting table are integrally connected from the divided seedling mounting table side. Things. Further, in claim 3, gripping portions are provided on both left and right sides of the divided seedling mounting table, and one of the left and right gripping portions is arranged at a position higher than the other. According to a fourth aspect of the present invention, gripping portions are provided on both left and right sides of the divided seedling mounting table, and the left and right gripping portions are arranged so as to sandwich the center of gravity of the divided seedling mounting table.

[0005]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view of a rice transplanter having a seedling mounting table capable of reducing the length in the left-right direction, FIG. 2 is a rear view showing a state where the divided seedling mounting table is placed on the main seedling table and stored. 3 is a rear view of the seedling mounting of the present invention, FIG. 4 is a rear view of the split seedling mounting, FIG. 5 is a side view of the seedling mounting, FIG. 6 is a rear view of the split seedling mounting, and FIG. It is a rear view of the seedling mounting stand in a state.

First, an overall structure of an eight-row riding rice transplanter will be described with reference to FIG. In the riding rice transplanter A, a planting portion 4 is disposed at a rear portion of a traveling portion 1 via an elevating link mechanism 27. The traveling portion 1 has an engine 2 mounted above a front portion of a body frame 3 and a front axle case is disposed at a lower front portion. , And a rear wheel 8 is supported via a rear axle case 7 at the rear. The engine 2 is covered with a bonnet 9, spare seedling stands 10 and 10 are provided on both sides of the bonnet 9, and a steering handle 14 is disposed on a dashboard 5 behind the bonnet 9. 9 A body cover 12 is provided on both sides and the rear of the body frame 3.
The seat 13 is disposed at the rear position of the steering handle 14, and steps are formed on both sides of the hood 9, the front part of the seat 13, the right and left sides of the seat 13 and the rear of the seat 13.

On the side of the driver's seat 13, a traveling speed change lever 30, a sub-transmission lever 31 for planting up / down and work traveling speed change, and a planting sensitivity adjusting lever are arranged. A clutch pedal 32 and left and right brake pedals are arranged, and an eight-row fertilizer 33 is arranged behind the seat 13.

The planting section 4 is composed of a seedling mounting table 16, a planting claw 17, a center float 34, a side float 35, and the like. The lower portion of the seedling mounting table 16 is supported by a lower guide rail 18 and the upper portion of the front surface is slidably reciprocated left and right by an upper guide rail 19. The lower guide rail 18 and the upper guide rail 19 are separated from the planting center case 20 by a frame or the like. Is supported through. Then, the chain case 21 is projected rearward in parallel from the planting center case 20 via a connecting pipe, and a rotary case 22 for rotating in one direction is arranged at the rear of the chain case 21.
A pair of planting claws 17 is arranged on both sides of the two. In this manner, the seedling table 16 is reciprocally slid left and right with forward traveling, and the planting claws 17 are driven in synchronization with the reciprocating motion to cut out one seedling of seedlings so that the planting operation is continuously performed. Make up.

The planting center case 20 is connected to the lifting link mechanism 27 via a rolling fulcrum shaft at the front of the planting center case 20. The lifting link mechanism 27 comprises a top link 25, a lower link 26 and the like. The planting section 4 can be moved up and down by an elevating cylinder 28 arranged below.

Next, the structure of the seedling table 16 of the present invention will be described. As shown in FIG. 2 to FIG. 7, the seedling mounting table 16 is configured by dividing a two-row seedling mounting table on the right outside in the traveling direction into divided seedling mounting tables 16.
D, the fixed seedling platform for the six rows fixed at the center of the fuselage is defined as a main seedling platform 16M, and the divided seedling platform 16D is configured to be detachable. It is configured such that it can be placed and engaged on the rear part of the mounting table 16M so that it can be stored. The lower guide rail extended outward is configured to be rotatable forward and stored, and the side bumper is slid inward to be stored.

The seedling mounting table 16 is provided with ribs 16a, 16a,... In the front and rear directions on the left and right sides for each strip on the upper surface so that the seedling mat can be guided by the ribs 16a, 16a. Ribs 16 on both left and right sides of the divided seedling mounting table 16D
As shown in FIG. 4, handles 40L and 40R, which are gripping portions, are provided in the middle of the upper and lower portions a and 16a, and the handle 40L is protruded rearward and upward, and the handle 40R is disposed protruding sideways. . The arrangement positions of the handles 40L and 40R in the vertical direction of the seedling mounting table 16 are different in height,
The outer side (the right side 40R in the present embodiment) is higher, and the inner side (the left side 40L in the present embodiment) is lower. A line X connecting the attachment portions of the handles 40L and 40R is disposed so as to pass near the center of gravity G of the divided seedling mounting table 16D so that the handles 40L and 40R are positioned with the center of gravity G interposed therebetween. ing.

In this way, when the split seedling mounting table 16D is attached or detached, the handle is lifted and moved while holding the handles 40L and 40R. However, since one of the handles is low, a fitting pin 41L, which will be described later, is supported during storage. 43L, and is easy to apply force when lifting and moving. Further, since the handles 40L and 40R are arranged with the center of gravity G interposed therebetween, the balance is not lost when moving.
It can be easily moved.

As shown in FIG. 6, fitting pins 41L and 41R protrude downward from the left and right sides of the rear side (front side) of the divided seedling mounting table 16D. Support pipes 43L and 43R provided on seedling mounting table 16M
And can be placed and fixed. An engaging hole 42 is opened in the upper front part of the upper guide rail 19 provided at the front upper part of the divided seedling mounting table 16D, that is, at the upper part on the back side (back side) of the central rib. Seedling stand 16M
The engaging pin 44 provided above can be engaged and fixed. In this way, three points are supported. The engagement hole 42 also serves as a hole for injecting grease, and implements the number of components.

As shown in FIG. 3, the support pipes 43L and 43R are fixed on a fourth left rib 16a and a fifth right rib 16a from the left, respectively. Is welded to a stopper stay 50 to be described later, and the stopper stay 50 is fixed to a rib so that the number of steps for attaching the left and right support pipes 43L and 43R can be reduced. Also, the support pipe 43
L · 43R is connected and reinforced by a connecting rod 49,
Further, the upper end of the left support pipe 43L is arranged higher than the upper end of the right support pipe 43R, and is inserted from the fitting pin 41L of the divided seedling mounting table 16D as a guide, and the other fitting pin 41R is easily inserted. I can do it. Further, the engaging pin 4 is provided above the right rib 16a of the fourth row.
4 is rotatably arranged.

Further, the divided seedling mounting table 16D and the main seedling mounting table 16M
Are connected by a lock device 45, the lock device 45 lays a pipe horizontally parallel to the lower guide rail 18 and the upper guide rail 19, and inserts a lock rod into the pipe, A handle is provided at one end of the lock rod, and a lock cam is provided at the other end, so that the handle is rotated during connection so that the lock cam does not come off the pipe.

In order to remove the divided seedling mounting table 16D in this way, the locking device 45 is released and the handle 40L
-Lift by holding 40R, and move the divided seedling mounting table 16D to a position above the main seedling mounting table 16M as it is,
The fitting pins 41L and 41R are inserted into the support pipes 43L and 43R, and the engaging pins 44 are engaged with the engaging holes 42 and fixed.

In FIGS. 3, 4, and 5, a seedling mat holder 46 and a seedling stopper 47 are disposed on the main seedling mounting table 16M and the divided seedling mounting table 16D between the left and right ribs 16a. I have. As shown in FIGS. 4 and 5, the seedling mat holding member 46 has a vertical holding member 46a and a horizontal supporting member 4a.
6b and a support shaft 46c.
Is formed in a substantially inverted V-shape in a side view, and its lower base is fixed to a support shaft 46c, and both sides of the support shaft 46c are the first left rib 16a on the main seedling mounting table 16M from the left. And stopper stays 50, 50, 50 fixed on the right rib 16a of the third row and the right rib 16a of the sixth row
It is rotatably pivoted to. In the divided seedling mounting table 16D, both sides of the support shaft 46c are rotatably supported by stopper stays 50, 50 fixed on the ribs 16a on both sides.

The upper end of the vertical holding bar 46a is a horizontal supporting bar 4
6b, the horizontal support bar 46b is formed in a substantially U-shape in plan view, and both ends of the horizontal support bar 46b are located above the rib 16a to which the stopper stay 50 is fixed.
1 can be engaged. The base of the seedling stopper 47 is pivotally supported by a pivot pin 46d projecting from the base of the vertical holding bar 46a, and the rear surface of the seedling stopper 47 can be engaged with the support shaft 46c. Therefore, when the seedling stopper 47 is released, the seedling stopper 47 is engaged with the support shaft 46c,
When the seedling mat is received, the seedling mat is rotated downward for each row so that the tip comes into contact with the upper surface of the seedling mounting table 16.

The seedling mat retainer 46 constructed as described above.
In the conventional eight-row rice transplanter, the number of seedling mat retainers is one for each of the two seedling stands that are folded on both sides, and one for each of the two central and one left and right sides of the fixed seedling stand. In each case, two seedling mat holders 46M, 46M, each of which is integrally formed with three rows, are arranged on the main seedling mounting base 16M, and divided seedling holders are provided. A seedling mat retainer 46D integrally configured with two rows is arranged on the table 16D. That is, the seedling mat holder 46 is divided into two, three, and three rows of seedling mat holders 46D.
As a configuration in which a total of three 46M / 46M are arranged, the number of seedling mat holders 46 is reduced, the operation for removing the remaining seedlings is reduced, and the efficiency is improved, the number of parts is reduced, and the number of assembly steps is reduced. The cost is being reduced.

Further, seedling stoppers 47 provided on each section are provided.
And support shaft 46c for supporting seedling mat holder 46
Is supported by the stopper stay 50, so that the number of the stopper stays 50 is 5, that is, 3
And two on the divided seedling platform. Conventionally, stopper stays are required on the left and right sides of each of the divided seedling platforms on both the left and right sides. Because there are three stopper stays, four stopper stays are required, and a total of eight stopper stays are required, requiring a large number of stopper stays. However, in the present invention, the number of stopper stays can be reduced.

A flasher lamp 54 and a seedling splicing sensor 55 are arranged on the divided seedling mounting table 16D.
Power is supplied to the flasher lamp 54 and the seedling splicing sensor 55 from the main seedling mounting table 16M side, and a control signal is transmitted.
In the past, it was possible to use a curl cord that can be expanded and contracted, or to wire it with some margin, so that it can be folded.However, when the cord is folded or set in a working state, the cord is easily caught by other parts and may be damaged. was there. Also, the range that can be moved even when the divided seedling mounting table 16D is removed during maintenance is determined by the cord, and if it is configured to be detachable, it is necessary to make that part a waterproof part. Had become.

Therefore, in the rice transplanter according to the present embodiment, as shown in FIG. 7, outlet type connectors 60a and 60b are provided on the opposite side surfaces of the divided seedling mounting table 16D and the main seedling mounting table 16M, that is, the joint portions. The cord connected to the flasher lamp 54 and the seedling splicing sensor 55 is connected to the connector 60a. The connectors 60a and 60
b is a waterproof type. With this configuration, the divided seedling mounting table 16D can be removed simply by moving it to the side, and can be set to the working state by simply moving it in the opposite direction, and the wiring can be connected. Therefore, there is no possibility that the cord is cut without being entangled.

Also, as shown in FIG.
It is also possible to adopt a configuration that also serves as a contact. That is, the wire on the ground side is connected to the junction between the divided seedling mounting table 16D and the main seedling mounting table 16M, and the plus line of the two-row seedling splicing sensor 55 is connected to the upper and lower locking devices 45, 45, The plus side of the flasher lamp 54 is the upper fitting portion 5 for positioning.
Connect to 6. Then, a harness is connected to each of the fitting portions 45a and 45a of the locking devices 45 and 45 and the fitting portion 56a of the fitting portion 56 on the side of the main seedling mounting table 16M, and is connected to the respective control portions. With this configuration, when the work state is set and locked in the same manner as described above, conduction is performed through the fitting portion, and the flasher lamp 54 and the seedling splicing sensor 55 can be operated without using an expensive curl cord. And the code is not involved. If the split seedlings 16D are not set sufficiently, the seedling splicing sensor 55 is activated and an alarm is issued in the driving section to inform that the setting is not normal. The storage state can be easily determined.

[0024]

As described above, the present invention has the following advantages. That is, as in claim 1,
In a rice transplanter capable of shortening the length in the left-right width direction of the seedling mounting table, two left and right one-sided seedling mounting tables are detachable to be divided seedling mounting tables, and the divided seedling mounting tables are used as the remaining seedling mounting tables. Since it can be placed and fixed above the main seedling mounting table, the operation of reducing (storing) the seedling mounting table is easier and labor-saving compared to a configuration in which the left and right seedling mounting tables are divided and both sides are folded. In addition, the structure can be easily configured.

According to a second aspect of the present invention, in the eight-row rice transplanter, the seedling mat retainers disposed on each of the rows of the seedling mounting table are provided for two or three rows from the divided seedling mounting table side. Since the three sections are integrally connected, when removing the seedling mats remaining after the operation, it is only necessary to open the three seedling mat holders, so that it is possible to reduce the labor for operation.

[0026] According to a third aspect of the present invention, grippers are provided on both left and right sides of the divided seedling mounting table, and one of the left and right gripping parts is disposed at a higher position than the other, so that the operator can move the divided seedling mounting table. When attaching and detaching, it is easier to perform the fitting operation with the fitting part arranged on the lower side, compared to the case where the gripping part is arranged at the same height,
The force can be easily applied, and it is easy to deal with the rotational force in the front-rear direction, and the operation can be performed in a well-balanced manner.

Further, since the gripping portions are provided on both left and right sides of the divided seedling mounting table, and the left and right gripping portions are arranged so as to sandwich the center of gravity of the divided seedling mounting table, the divided seedling mounting table is removed. When lifted, it is lifted in a well-balanced manner, and one of the left and right sides is tilted to make it difficult to mount, and one hand has a large load applied to the hand.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter provided with a seedling mounting table whose length in the left-right direction can be reduced.

FIG. 2 is a rear view showing a state where a divided seedling mounting table is placed on a main seedling mounting table and stored.

FIG. 3 is a rear view of the seedling mounting table of the present invention.

FIG. 4 is a rear view of the divided seedling mounting table.

FIG. 5 is a side view of the seedling mounting table.

FIG. 6 is a rear view of the divided seedling mounting table.

FIG. 7 is a rear view of the seedling mounting table in a separated state.

FIG. 8 is a rear view showing another embodiment for connecting a flasher lamp provided on a divided seedling mounting table and a cord of a seedling connection sensor.

[Explanation of symbols]

 16 Seedling platform 16D Divided seedling platform 16M Main seedling platform 40L / 40R Handle 46 Seedling mat holder G Center of gravity

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoichiro Nishi 1-32 Chayacho, Kita-ku, Osaka, Osaka Prefecture Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Kunio Doi 1-32, Chayacho, Kita-ku, Osaka, Osaka No. Within Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Satoshi Maekawa 1-32 Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture F-term within the Yanmar Agricultural Machinery Co., Ltd. AC01 BA10 BA26 DA03 DA11 DA21 DB01 DB16

Claims (4)

[Claims] In a rice transplanter capable of reducing the length of the seedling mounting table in the left-right width direction, two left and right one-sided seedling mounting tables are detachable to form a divided seedling mounting table. A seedling table for a rice transplanter, which can be placed and fixed above the remaining main seedling table. 2. An eight-row rice transplanter, comprising: holding a seedling mat retainer disposed on each row of a seedling mounting table for two, three, and three rows from the divided seedling mounting side, respectively. The seedling mounting table for a rice transplanter according to claim 1, wherein the seedling mounting table is integrally connected. 3. The seedling table of a rice transplanter according to claim 1, wherein grippers are provided on both left and right sides of the divided seedling table, and one of the left and right grips is disposed at a position higher than the other. 4. The seedling of a rice transplanter according to claim 1, wherein grippers are provided on both left and right sides of said divided seedling mounting table, and said left and right gripping units are arranged so as to sandwich a center of gravity of said divided seedling mounting table. Mounting platform.