JP3391547B2 - 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 Among seedling planting apparatuses connected to a rice transplanter,
The seedling planting apparatus for multi-row planting such as eight-row planting has a large size in the width direction, and has a form that protrudes greatly from the machine body in the lateral direction. Once the device has been separated from the fuselage,
The seedling planting device is set in the horizontal direction by setting the lateral direction of the seedling planting device to the front and rear direction of the machine. The amount of overhang is reduced. [0003] 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 resolving this inconvenience, for example, the seedling planting device is divided into planting strips, and the divided material is rotated around the vertical axis to reduce the amount of overhang in the machine lateral direction. It is also conceivable to make the configuration freely switchable. [0005] However, when the seedling planting apparatus is divided and its posture is changed, it is not possible to switch the divided state of the seedling planting apparatus to the storage posture by rotating the divided body of the planting device around the vertical axis while maintaining the position. It is impossible because the divided parts come into contact with each other, and a suitable means for enabling storage is desired. SUMMARY OF THE INVENTION It is an object of the present invention to provide a rice transplanter that divides a seedling plant and swings it around an axis in a vertical position to easily switch to a retracted position to reduce the amount of overhang in the lateral direction. It is in the point that it is configured. A feature of the present invention is that a seedling planting apparatus for planting a plurality of rows connected to a traveling machine is configured to be capable of being divided into two divided pieces per planting strip. Each of the divided parts is supported so as to be swingable around the vertical axis of the arm member with respect to the swing end of the arm member which is swingable about the vertical axis of the arm member. By changing the swinging posture of the divided member with respect to the member, the seedling planting device is configured to be freely switchable between a storage posture that reduces the amount of overhang of the seedling planting device in the lateral direction and a working posture that does not perform the division of the seedling planting device. The arm member is configured to be extendable and retractable, and the extension of the arm member divides the seedling planting apparatus in the working posture into two parts so that each divided part is configured to be movable in the separating direction. The operation and effect are as follows. According to the above feature, when the seedling planting apparatus is switched to the retracted posture, the divided member of the seedling planting apparatus is moved in the separating direction by the extension operation of the arm member, and then the arm member is moved vertically. The change of the swinging posture around the axis of the orientation posture and the change of the swinging posture around the axis of the vertical posture at the swing end position of the arm member allow the seedlings to be planted in the lateral direction of the traveling body. It is possible to reduce the overhang amount of the attachment device. That is, in the present invention, since the arm member for changing the posture of the divided object is configured to be extendable and contractible, the divided members are moved in parallel by one action of extending the arm member so that each of the divided members is swung. It can be separated to a position where it does not contact each other. For example, as compared with a mechanism using a parallel quadruple link mechanism, the size can be reduced, the operation mode at the time of changing the posture becomes simpler, and the design becomes easier. Therefore, the seedling planting apparatus is divided and swung about the axis in the vertical posture, and the switching to the storage posture in which the amount of overhang in the lateral direction of the aircraft is reduced can be easily performed by a reasonable operation. The rice transplanter used in the above was made compact. Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, 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. A driving seat 5 is arranged at a position, and a seedling planting apparatus A is connected to a rear end of a link mechanism 7 driven and raised and lowered by a lifting cylinder 6 with respect to a rear end of the traveling machine body 3 so as to freely roll around an axis X in a front and rear posture. To construct a riding rice transplanter. The right side of the driver's seat 5 is provided with a raising / lowering lever 8 for controlling the raising and lowering of the seedling planting device A and the on / off operation of a planting clutch (not shown), and on the left side of the driver's seat 5. A speed change lever 9 is provided. The planting clutch is interposed in a transmission system from the traveling machine body 3 to the seedling planting device A, and controls the seedling planting device 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 posture of the divided parts of the seedling planting apparatus A is changed by the swing of the arm system supporting the divided parts. It is configured to be freely switchable between a storage position for reducing the amount of overhang of the body in the lateral direction and a work position for not dividing. That is, as shown in FIGS. 2 to 5, a horizontally long support frame 17 is fixed to the rear surface of a rolling frame 16 supported at the lower end of a vertical frame 7A at the rear end of the link mechanism 7. Arm member 1 swingable around first support shaft 18 in a vertical position at both ends of support frame 17
9 is supported on the swinging end of the arm member 19 so as to be swingable about a second support shaft 20 having a vertical shaft center.
The second brackets 22 formed at 1, 21 are connected. The arm member 19 includes a cylindrical member 19A and the interior member 1 which is slidably fitted inside the cylindrical member 19A.
9B, it is configured to be able to expand and contract by about 150 mm (about half the width of the mat-shaped seedling), and a hydraulic cylinder 23 for performing expansion and contraction operations is additionally provided. This arm member 1
9, a first hydraulic motor 2 having a pinion gear 25A meshing with a first gear 24 mounted on the first support shaft 18.
Arm member 19 for supporting frame 17
The swinging posture of the arm member 19 can be freely changed, and the swinging end of the arm member 19 has a second gear 26 mounted on the second support shaft 20.
A second hydraulic motor 27 having a pinion gear 27A that meshes with the arm member 19 is provided so that the swinging posture of the planting frame 21 with respect to the arm member 19 can be changed. The planting frame 21 supports a seedling mounting table 10A divided into two sections of four, a pair of leveling floats 15, and the left and right transmission cases 11, and an output shaft through which power from the body is transmitted. The power from the transmission case 28 is transmitted to the transmission case 11 via the bevel case 29 and the intermediate shaft 30. The rolling frame 16 has an output shaft 28.
Is supported so as to be swingable around the axis (corresponding to the rolling axis X) of the rolling frame 16.
The seedling planting device A can be integrally rolled with the output shaft 28 and the input shaft 2 of the bevel case 29.
The intermediate shaft 30 is formed so as to be separable by forming an occlusal clutch type, and the intermediate shaft 30 is configured to be expandable and contractible by internally fitting a shaft body 30B in a spline-fit state to the cylindrical shaft 30A, and universally provided at both ends. It is configured to be freely bendable by providing the joint 31. As described above, the seedling planting apparatus A is configured to be splittable, and each of the divided parts is swingably supported with respect to the arm member 19, so that the seedling planting apparatus shown in FIG. When switching the A to the storage position, the lock of the lock member (not shown) connecting the left and right divided parts is unlocked, and the bevel case 29 is separated from the output shaft 28. Then, as shown in FIG. By the extension operation of the cylinder 23, the divided parts are separated in a parallel movement state, and the divided parts of the seedling planting apparatus A are separated by the driving of the first and second hydraulic motors 25 and 27 as shown in FIG. By rotating the inward side of the planting apparatus A to the attitude toward the rear of the fuselage, the attitude is switched to the storage attitude of the attitude shown in FIGS. Will be reduced. When switching from the stored position to the working position, the first and second hydraulic motors 25 and 27 are driven to restore the position of the divided part of the seedling planting apparatus A, and the hydraulic cylinder 23 is contracted to drive the divided part. The operation posture is restored to the working posture shown in FIG. 6 by performing operations in the reverse order, such as bringing the object close to and locking the predetermined lock member, and connecting the bevel case 29 to the output shaft 28. [Alternative Embodiment] The present invention, in addition to the above embodiment,
For example, it is also possible to configure so that the expansion and contraction operation of the arm member is manually performed, the swing of the arm member, and the swing of each of the divided parts with respect to the arm member are manually performed.
Further, the present invention can be applied to a seedling planting apparatus with eight or more rows and a seedling planting apparatus with eight or less rows. In the claims, reference numerals are provided for convenience of 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 rice transplanter. FIG. 2 is a plan view of a transmission system of a seedling planting apparatus in a working posture. FIG. 3 is a plan view of an arm member in an extended state. FIG. 5 is a plan view of a transmission system of the seedling planting device in a retracted position. FIG. 6 is a plan view of a rice transplanter in which the seedling planting device is set to a working position. 7: A plan view of a rice transplanter in which the seedling planting device is separated [FIG. 8] A plan view of the rice transplanter in a state where the seedling planting device in the separated state is rotated [FIG. 9] The seedling planting device is set in a retracted posture Top view of rice transplanter [FIG. 10] Rear view of seedling planting device set in storage position [Description of symbols] 3 Traveling machine body 19 Arm member A Seedling planting device

Claims (1)

(57) [Claims 1] A seedling planting apparatus (A) for multiple planting connected to a traveling body (3) is configured to be able to be divided into two divided parts per planting line. Each of the divided members is swingably supported around a vertical axis with respect to a swing end of an arm member (19) swingable around a vertical axis. ) And the change in the swinging posture of the divided object with respect to the arm member (19), the storage posture for reducing the amount of the seedling planting device (A) projecting in the lateral direction of the body, and the seedling planting device ( A) is configured to be freely switchable to a working posture in which the division of A) is not performed, and the arm member (19) is configured to be extendable and contractible. ) Is divided into two parts so that each part can be freely moved in the separating direction.