JP3386565B2 - Rice transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter, and more particularly to an improvement of a seedling planting apparatus. 2. Description of the Related Art A seedling planting device connected to a rice transplanter is a seedling mounting table on which mat-shaped seedlings are placed, and seedlings are cut out one by one from the lower end of the mat-shaped seedlings and planted in a field scene. A planting arm, a plurality of leveling floats, and a transmission system for driving these, and the like, are conventionally configured, and the size in the lateral direction is large in a seedling planting device for multi-row planting such as eight-row planting. When running on the road or the like during non-working time, the seedling planting device is temporarily separated from the machine body, and the posture of the seedling planting device is rotated by 90 degrees (seedling planting). The lateral direction of the planting device is set to the front-back direction of the fuselage), and the lateral end of the planting device is reduced by connecting the side end of the planting device to the vehicle and pulling it. ing. [0003] In addition, even when a truck is used when the rice transplanter is moved, the seedling planting apparatus is often separated from the body so as to fit within the width of the carrier. [0004] As described above, the work of changing the attitude of the seedling planting apparatus and connecting it to the body is not only time-consuming but also requires time and labor, so there is room for improvement. is there. For the purpose of solving this inconvenience, the seedling planting device is divided into planting strips, and the divided parts are connected via a link member or the like so that the posture can be freely changed, thereby reducing the amount of overhang in the lateral direction of the aircraft. It is also conceivable to configure such that the posture can be freely switched. [0005] Considering that the seedling placement device is stored by changing the attitude of the divided parts of the seedling placement device as described above, in order to enable storage, it is necessary that the seedling mounting stand be configured to be splittable. In addition, since it is necessary that the seedling mounting table be integrally operated in the lateral direction during the work, it is desired that the seedling mounting table be maintained in a firmly connected state during connection. [0006] However, since the seedling mounting table is configured to be wide and operates by mounting a mat-shaped seedling weighed with moisture, when the structure is configured to be freely divideable, the divided portion is extremely strong. When storing the seedling planting apparatus, it is important that separation can be performed without any trouble. An object of the present invention is to quickly split a seedling mounting table when changing to a storage position that reduces the amount of overhang of the seedling mounting apparatus in the lateral direction of the machine, and to securely connect the seedling mounting base during work. The point is to construct the machine reasonably. A feature of the present invention is that a seedling mounting device connected to a traveling machine body is divided into a plurality of divided seedling mounting tables and a mat-shaped mounting table mounted on the seedling mounting table. A plurality of planting arms for cutting the seedlings from the seedlings are provided for multiple planting, and a storage posture in which the posture of the divided material is reduced to reduce a projecting amount of the seedling mounting table in a lateral direction of the machine, and a splitting operation. performed without switching freely configured and working posture, also, the coupling mechanism for integrating the adjacent ones of the seedling stand divided material when setting seedling stage in working posture, placed seedlings each other in the working position Of
Seedlings are arranged in a line at a distance in the vertical feeding direction
At the same time, a plurality of chains that are
The extension part for binding and the extension part of both divided parts are slid.
In a state where it is moved and disengaged, and
Engage over the back to prevent the split from moving in the separation direction.
Engagement supported by one of the splits in a stopped state
There in that are constituted by a member, its action and effects are as follows. According to the above feature, when the seedling mounting base is divided, the engagement of the engaging members with the extending portions formed on the divided parts of the seedling mounting base is released, so that the seedling mounting base is released. Movement of the seedlings in the separating direction is allowed to enable division, and when the seedlings are connected to each other, the divided parts of the seedlings are brought close to each other, and the engaging members are extended over the extending portions. Are engaged, the respective extension portions reach the connected state, and the divided pieces of the seedling mounting table are integrated. [0010] That is, when the seedling mounting table is divided, it is only necessary to release the engagement of the engaging member. Therefore, the operation is simple and quick in comparison with, for example, the operation of rotating a bolt or the like. separation is possible, the engaging member over each other extending portion at the time of coupling is engaged, for example, extending the large spaced locations
As a result, a stronger connection state is maintained as compared with the case where the protrusions are connected by engagement. Therefore, when changing the storage position to reduce the amount of lateral extension of the seedling planting apparatus, the seedling mounting is divided quickly, and the work is firmly connected during operation. The rice transplanter was rationally constructed. Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 12, an engine 4 is mounted on a front part of a traveling body 3 provided with a driven front wheel 1 and a driven rear wheel 2 which are operated by steering, and a central part of the traveling body 3 is provided. A link mechanism 7 having a driver seat 5 disposed therein and driven up and down by a lifting cylinder 6 with respect to the rear end of the traveling body 3
The seedling planting apparatus A is connected via the to construct a riding type rice transplanter. On the right side of the driver's seat 5, there is provided a raising / lowering lever 8 for controlling the raising and lowering of the seedling planting apparatus A and the on / off operation of a planting clutch (not shown). A speed change lever 9 is provided. Note that the planting clutch is interposed in a transmission system from the traveling machine body 3 to the seedling planting apparatus A, and controls the seedling planting apparatus A. The seedling planting apparatus A is provided with a seedling table 10 on which a mat-shaped seedling W is placed, a pair of left and right transmission cases 11 to which power is transmitted from the traveling machine body 3, and transmission from the transmission case 11 through a chain case 12. A rotary case 13 that is rotated by power, a pair of planting arms 14 provided on each of the rotary cases 13, and four leveling floats 15 are provided, each of which is configured for eight-row planting. The planting arm 14 cuts out the seedlings one by one from the lower end of the mat-shaped seedlings W and plants them in the field scene. In this rice transplanter, the seedling planting apparatus A is configured so as to be able to be divided into two by four, and the storage position is changed to change the posture of the divided material so as to reduce the amount of overhang of the body in the lateral direction, and to perform the division. It is configured so that it can be freely switched to a different working posture. That is, as shown in FIG. 6 and FIG. 7, the first bracket 17 formed on both sides of the lifting frame 16 connected to the rear end of the link mechanism 7 has the first support of the vertical shaft center. A first arm 19 is swingably connected around the shaft 18, and a second arm 21 is connected to a swing end of the first arm 19 so as to be swingable around a second support shaft 20 having a vertical shaft center, A second bracket 24 formed on the left and right planting frames 23 and 23 is connected to the swinging end of the second arm 21 so as to be swingable around a third support shaft 22 having a vertically oriented axis. On the planting frame 23, a seedling stage 10A divided into two sections of four rows, a pair of leveling floats 15, and
The left and right transmission cases 11 are supported, and power from an output shaft 25 to which power from the body is transmitted is transmitted to the transmission case 11 via a bevel case 26 and an intermediate shaft 27. The bevel case 26 and the intermediate shaft 27 are integrally formed so as to be separable from the output shaft 25.
Is configured to be expandable and contractible by a structure in which a shaft is internally fitted to a cylindrical shaft in a spline-fitted state, and is configured to be bendable by providing universal joints at both ends. As shown in FIG. 4 and FIG.
Is divided at the center, and the lower end faces of the divided portions 28A, 28A are engaged with the engaging state by moving in the approaching direction, and are moved in the separating direction. The engaged member 29 having a through hole 29A formed so as to be separated from each other, and a tapered engagement piece 30 engaged with the through hole.
In addition, the sliding rail 28 has an inner surface 2 of the other pipe-shaped part which is moved in the approaching direction by dividing the pipe-shaped part.
8B, and is provided with a tapered fitting piece 31 that separates by moving in the separating direction. As shown in FIG. 1 to FIG.
The mounting surface 10S of the mat-shaped seedlings W and the vertical wall portion 10T for restricting the lateral movement of the mat-shaped seedlings W are integrally formed of resin, and a vertical feed belt 32 is provided at a lower portion. Divided surfaces 10U, 10U are formed in the portion of the vertical wall 10T. The lower surfaces of the left and right divided parts 10A, 10A of the seedling mounting table 10 are adjacent to each other from the lateral direction, so that the divided surfaces 10U,
Rail-shaped fitted member 3 fitted at a position avoiding 10U
3 and a plate-shaped fitting member 34, and further, on the upper part and the lower part of the seedling mounting base 10, divided parts 10A, 1 of the seedling mounting base 10.
A coupling mechanism J that couples 0A is provided. Note that the fitted member 33 and the fitting member 34 have smooth bottom surfaces so as to guide the seedling mounting table 10 in sliding contact with the upper surface of the slide rail 28. The connecting mechanism J engages with the metal connecting members 35 arranged on the dividing surfaces 10U, 10U of the seedling placing table 10 of the divided parts 10A, 10A, and engages with the respective connecting members 35 to show the connected state. The connecting member 35 is configured to include a projecting metal engaging member 36.
A plurality of notch portions 35B for engagement, which are connected to and fixed to the opposing surfaces of each of the first and second seedlings 0A and open in a direction along the seedling mounting surface 10S with respect to the bent and formed extension portions 35A, are formed. When the ten divided parts 10A, 10A are arranged at the connection position, when the respective notches 35B overlap when viewed in a direction orthogonal to the seedling mounting surface 10S, the respective extending parts 35A come into contact with each other in the vertical direction. It is configured as follows. The engaging member 36 has a long hole 36A and a shaft 3 inserted through the long hole 36A so as to be slidable in a direction along the seedling mounting surface 10S of the seedling mounting table 19.
7, while being provided in contact with one of the connecting members 35, a tapered engaging piece 36B is formed in the overhang portion,
It is linked with a lever 39 for switching operation of the engaging member 36 via a rod 38 connected to the engaging member 36, and the engaging piece 36B is simultaneously engaged with the notch 35B so that the seedling rest 10 Is configured to prevent lateral movement of the divided parts 10A, 10A. With the construction of the seedling planting apparatus A as described above, when the seedling planting apparatus A in the working posture is switched to the retracted posture as shown in FIG. 8, a locking mechanism for connecting the left and right planting frames 23 is provided. (Not shown) Each lock is released, the bevel case 26 is separated from the output shaft 25, and the lever 3
9, the connection between the connecting member 35 and the engaging member 36 is released, and as shown in FIG. 9, the seedling mounting table 10 is switched so as to be separable. In a state where each is pulled out in the lateral direction of the fuselage and the divided parts are greatly separated,
By rotating the part of the division surface of the seedling planting apparatus A artificially toward the rear of the fuselage, the storage attitude of the attitude shown in FIGS. 10 and 11 can be switched. Conversely, when the seedling planting apparatus A is restored to the working posture, the connecting mechanism J is operated by operating the lever 39, the bevel case 26 is connected to the output shaft 25, and the left and right planting frames are connected. By connecting 23, 23, the frame system of the seedling planting apparatus A is integrated, the transmission system is interlocked, and the seedling mounting table 10 can be integrated to perform work. [Alternative Embodiment] The present invention is not limited to the above-described embodiment.
For example, the engagement member can be configured to be swingable around a predetermined axis, and can be configured to be freely switchable between a state in which the engagement member is connected to the connection member and a state in which the connection is released by swinging, The divided parts of the seedling planting apparatus can be configured to be freely switchable between a storage position and a working position by an actuator such as a hydraulic cylinder or an electric motor. In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] (a) is a partially cutaway rear view of the lower part of the seedling mounting base in a divided state (b) is a partially cutaway rear view of the lower part of the seedling mounting base in a connected state ] Longitudinal side view of connecting mechanism [Fig. 3] Cross-sectional bottom view of connecting mechanism [Fig. 4] (a) Rear view of sliding rail in separated state (b) Rear view of sliding rail in connected state [Fig. FIG. 6 is a schematic plan view of the transmission system of the seedling planting device in the working posture. FIG. 7 is a schematic plan view of the transmission system of the seedling planting device in the retracted posture. FIG. 9 is a plan view of a rice transplanter in a state where the seedling planting apparatus is set to a working posture. FIG. 9 is a plan view of a rice transplanter in a state where the seedling planting apparatus is divided. FIG. FIG. 11 is a rear view of the seedling planting device in the retracted posture. FIG. 12 is an overall side view of the rice transplanter. [Description of References] 3 traveling machine body 10 seedling placing stand 14 planting arms 35 consecutive Member 36 engaging member A seedling planting apparatus J coupling mechanism W mat Jonae

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(1) A seedling mounting device (A) connected to a traveling machine body (3) and a seedling mounting table (10) capable of being divided into a plurality of divided parts. A plurality of planting arms (14) for cutting out seedlings from the mat-shaped seedlings (W) placed on the mating seedlings (10) are configured for planting a plurality of rows, and the posture of the divided parts is changed so that the seedling mounting table (10) is formed. ) Is configured to be freely switchable between a storage position for reducing the amount of overhang of the machine in the lateral direction and a work position without performing division, and when the seedling mount (10) is set to the work position, the seedling mount (10) is set. A) a connecting mechanism (J) for integrating adjacent ones of the divided parts into a seedling mounting table (10) in a working posture;
The seedlings are arranged in a line at intervals in the vertical feed direction.
As well as a plurality of
An extension part (35A) for connection and the extension part of both divided parts
(35A) in the state of sliding and disengaging,
In addition, a member is extended between the extension portions (35A) of the two divided parts.
Combined with one another in a state where movement of the
And an engaging member (36) supported by the divided part.
A rice transplanter that is equipped and configured.