JP2880382B2 - Support structure of seedling table in paddy field working machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a seedling table in a paddy field working machine in which a seedling table is supported on a traveling machine so as to be able to reciprocate left and right.

[0002]

2. Description of the Related Art In general, in a paddy field working machine such as a multi-row planting planter, a seedling table that reciprocates left and right is provided at a rear portion of a traveling machine body, and a seedling sent from the seedling table to a seedling receiving plate. Is planted by a planter that operates to plant and is planted in a field. Conventionally, in such a paddy field working machine, a slide piece is provided on a support frame of the seedling mounting table in order to support the seedling mounting table so as to be able to reciprocate left and right, and a rail of the seedling mounting table is slid along the slide piece. There has been known an apparatus having a guide roller instead of a slide piece.

[0003]

However, in the case where components such as a slide piece and a guide roller are provided to support the seedling mounting table, there is inevitably a play between the components due to the structure of the seedling mounting. When the seedlings sent from the seedling table onto the seedling receiving plate are scraped by the planter, the support of the stand becomes unstable. was there. The present invention has been created in order to solve the above-described problems, and in supporting a seedling mounting table on a traveling machine body, without providing a slide piece, a guide roller, or the like that causes play. It is an object of the present invention to provide a support structure for a seedling table in a paddy field working machine, which can always be supported in a reciprocating manner with a stable bear and can improve planting accuracy.

[0004]

Means for Solving the Problems To solve the above problems, a technical means taken by the present invention is a paddy field working machine which supports a seedling table on a traveling machine so as to be able to reciprocate left and right. The tubular body in the left-right direction is fixed directly above the seedling receiving plate, and both sides of the seedling mounting table are fixed to the slide bar slidably fitted into the tubular body to support the left-right reciprocating movement.
It is characterized in that the.

[0005]

Therefore, according to the present invention, the seedling mounting table supported by the traveling machine has a slide bar fixed to both sides of the seedling mounting table in a left-right cylindrical body fixed immediately above the seedling receiving plate. Slide along the left and right directions. Since the slide bar fitted into the cylindrical body has very little backlash in the front-rear direction and the vertical direction, the seedling mounting table is always supported in a stable state and smoothly reciprocates left and right. In addition, the tubular body is directly above the seedling receiving plate
Since the platform is supported, the parallelism of the plant
It is easy to put out, and it is possible to perform the planting operation with high accuracy.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in FIG. 4, reference numeral 1 denotes a traveling body of a walking rice transplanter exemplified as a paddy field working machine, and a float 4 is provided below a body frame 3 on which an engine unit 2 is mounted.
The left and right traveling wheels 6 supported by the chain case 5 are arranged on both sides. 7 is the engine unit 2
It is a hood that covers. The float 4 has a rear portion pivotally supported by a connecting member 8 so as to be vertically swingable, and a front portion thereof is vertically movable toward and away from the body frame 3. A chain case 5 supporting the traveling wheels 6
The base end of which is pivotally supported on the outer periphery of a rotating shaft 10 protruding from the transmission case 9 so as to be vertically swingable, and the rotating shaft 10 is provided by a chain transmission mechanism provided in the chain case 5.
Is transmitted to the traveling wheels 6. Numeral 11 denotes a hydraulic control mechanism composed of a hydraulic cylinder 12 and the like, which senses the vertical movement and rolling of the float 4 sliding on the rice field, and moves the left and right running wheels 6 simultaneously or vertically in opposite directions to form a body attitude. Is horizontally controlled. An operation handle 13 extends rearward and upward from the rear end of the body frame 3.
A front-low back-high seedling mounting table 14 is supported so as to be able to reciprocate left and right. Numeral 15 is a seedling receiving plate provided facing the lower end of the seedling mounting table 14, and 16 is a planter provided below the seedling receiving plate 14 for planting operation. The planter 16 scrapes the seedling sent out onto the seedling receiving plate 15. It is scraped from the intake 17 and planted in a field.

The supporting mechanism for supporting the seedling mounting table 14 so as to be able to reciprocate left and right is constructed as follows. That is, reference numeral 18 denotes a left-right cylindrical body provided on the traveling machine body 1. As shown in FIGS. 1 to 3, the cylindrical body 18 has mounting plates 19a, 19b, and 19c on its rear surface side. By fixing the mounting plates 19a, 19b, and 19c to the support frame 20 mounted on the body frame 3 with bolts or the like, the seedling receiving plate 15 in which the cylindrical body 18 is supported by the support frame 20 is welded. It is located directly above.
The seedling receiving plate 15 slides on the mounting plates 19a, 19b, 19c when adjusting the scraping amount of the seedlings. 21
Numeral denotes a lower rail provided on the rear surface on the lower end side of the seedling mounting table 14. A slide bar 22 is slidably fitted in the hollow portion of the cylindrical body 18, and both end portions of the slide bar 22 protruding from the cylindrical body 18 are provided on both left and right sides of the seedling mounting table 14. By being fixed to the brackets 23, the seedling mounting table 14 is reciprocally movable right and left along a tubular body 18 fixed immediately above the seedling receiving plate 15 . On both sides of the cylindrical body 18, slide pieces 24 fitted to slide bars 22 are provided, and the slide pieces 24 are formed in a square shape corresponding to the lower rail 21. When the right and left reciprocate, the lower rail 21 is supported by the slide piece 24 and slides.
Reference numeral 25 denotes an upper rail provided on the upper side of the seedling mounting table 14, and reference numeral 26 denotes a support roller for the upper rail 25.

Numeral 27 denotes a seedling holder provided on the seedling mounting table 14, and a vertical operation arm 28 is connected to the seedling holder 27, and a base end of the operation arm 28 extends in the front-rear direction of the traveling machine 1. It is fixed to a rotating shaft 29 provided. A base end of the drive arm 30 is fixed to the front end of the rotation shaft 29, and a slide block screwed to a screw shaft (not shown) in the transmission case 9 swings the drive arm 30 right and left. By moving the seedling holder 27 by the operating arm 28 that swings in conjunction with the above, the seedling mounting table 14 reciprocates left and right. Numeral 31 is a seedling vertical feeding device provided on the seedling mounting table 14.

In FIG. 6, the outer peripheral surface of the cylindrical body 18 is formed by connecting the lower surface of the upper plate 21a of the lower rail 21 to the front plate 21.
b, which is used to position the lower rail 21 in the up-down direction and the front-rear direction by being brought into contact with the rear surface. Further, in the one shown in FIGS. At the same time, a push screw 32 for pressing the slide bar 22 is provided substantially at the center of the tubular body 18 to provide sliding resistance to the slide bar 22, so that the lateral play of the seedling table 14 that reciprocates right and left can be reduced. It is to decrease.

[0010] In the above-described configuration, when the planting operation is performed, the seedling table 14 supported by the traveling machine 1 reciprocates right and left as the machine runs, and the seedling table 14 moves from the seedling table 14 to the seedling receiving plate 15.
The planter 16 scrapes the seedlings sent out and plant them in the field. At this time, the seedling mounting table 14 that reciprocates right and left is provided with a slide bar 22 fixed to a bracket 23 and a seedling receiving plate 15.
Slides left and right in a state of being fitted into the right and left cylindrical body 18 located directly above the head, so that the back and forth and up and down directions have extremely little backlash as compared with the conventional one using a slide piece or the like. Sliding with And the cylindrical body 18
Since it is only necessary to fix the seedling mounting table 14 to the slide bar 22 fitted in the, the mounting of the seedling mounting table 14 is simple, the number of lubricating points and the like are reduced, and maintenance work and the like become easy. Further, since the cylindrical body 18 supports the seedling mounting table 14 directly above the seedling receiving plate 15, the parallelism of the seedling mounting table 14 with respect to the seedling receiving plate 15 is easy to obtain, and the scraping port provided on the seedling receiving plate 15 is provided. Since the play of the seedling mounting table 14 in the vicinity of 17 is reduced, the planter 16 that performs the planting operation can scrape the seedlings without causing dripping of the floor soil and perform a high-precision planting operation. In addition, since the guide pieces 24 provided on both sides of the cylindrical body 18 serve as sliding surfaces and support the lower rail 21 of the seedling mounting table 14 from below, bending of the slide bar 22 is also prevented.

On the other hand, the outer peripheral surface of the cylindrical body 18 is
When the seedling mounting table 14 is mounted, the positioning can be performed in either the left-right direction or the front-rear direction, so that the mounting operation can be performed more easily. In the case where the slide bar 22 is pressed, the slide bar 22 does not slide unnecessarily, so that the back-and-forth moving back and forth movement of the seedling mounting table 14 can be reduced.

[0012]

In summary, the present invention relates to a paddy field working machine for supporting a seedling table on a traveling machine so as to be able to reciprocate left and right.
The tubular body in the left-right direction is fixed to the traveling machine directly above the seedling receiving plate, and both sides of the seedling table are fixed to a slidable slide bar fitted into the tubular body. freely left and right reciprocate
Because of the support, the slide bar fitted into the left-right tubular body fixed to the traveling body smoothly slides along the tubular body in the front-back direction and the up-down direction with very little backlash. The seedling mounting table having both sides fixed to the bar can be supported in a stable state and smoothly reciprocated right and left. In addition, the tubular body supports the seedling table just above the seedling receiving plate.
So that the parallelism of the seedling table with respect to the seedling receiving plate can be easily obtained.
Ku, it can cause a disturbance of the bed soil and the like from this for seedling loading table
Since the seedlings can be scraped neatly and planted in the field, the planting accuracy can be improved. In addition, since the seedling mounting table can be supported simply by fixing both ends of the seedling mounting table to the slide bar fitted in the cylindrical body, the number of parts is reduced, the assembly work is easy, and the lubrication point etc. Since the number is reduced, the maintenance and inspection work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view of a main part.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view of the same.

FIG. 4 is an overall side view of the paddy field working machine.

FIG. 5 is a perspective view of the same.

FIG. 6 is a side view of a main part showing another embodiment.

FIG. 7 is a side view of a main part showing still another embodiment.

FIG. 8 is a front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 14 Seedling stand 18 Cylindrical body 22 Slide bar

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoji Ishida 667 Iida-cho, Oaza, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture (1) Mitsubishi Agricultural Machinery Co., Ltd. 58) Field surveyed (Int.Cl. ⁶ , DB name) A01C 11/02 350

Claims (1)

(57) [Claims] In a paddy field working machine for supporting a seedling table on a traveling machine so as to be able to reciprocate left and right, a tubular body in a left-right direction is fixed to the traveling machine directly above a seedling receiving plate, and the tubular body is fixed. A support structure for a seedling mounting table in a paddy working machine, characterized in that both sides of the seedling mounting table are fixed to slidable slide bars fitted in the base and are supported so as to be able to reciprocate left and right.