JPH07298726A - Rice transplanter - Google Patents

Abstract

PURPOSE:To provide a rice transplanter capable of readily changing the posture to an accommodation posture in which the seedling planting unit is divided and reduced in the amount stretched in the transverse direction of the machine body by the posture change. CONSTITUTION:This rice transplanter is designed so as to be freely changed from an accommodation posture in which the seedling planting unit is divided into two subunits, held shakably around the longitudinal axis toward the shaking end of an arm member 19 shakable around the longitudinal axis and reduced in the amount stretched in the transverse direction of the machine body by shaking of the respective subunits to a working posture in which the seedling planting unit is not divided. In addition, the arm member 19 is designed so as to be expansible and the divided subunits of the seedling planting unit can be freely moved in the dividing direction by the expansion and contraction motion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter, and more particularly to improvement of a seedling planting device.

[0002]

2. Description of the Related Art Among seedling planting devices connected to rice transplanters,
A planting device for multi-row planting such as 8-row planting has a large dimension in the lateral width direction and has a configuration in which it projects greatly from the machine body in the lateral direction, so planting seedlings when traveling on the road etc. Once the device is separated from the airframe, position the seedling planting device to 90
Rotate the machine (set the lateral direction of the seedling planting device to the front-back direction of the machine), and connect the side edge of this planting device to the machine to pull it. The amount of overhang is reduced.

Incidentally, even when a truck is used when the rice transplanter is moved, the seedling planting device is often separated from the machine body so as to fit within the width of the bed.

[0004]

As described above, the work of changing the posture of the seedling planting device and connecting the seedling planting device to the machine body is not only time-consuming, but also time-consuming and labor-intensive, so there is room for improvement. For the purpose of eliminating this inconvenience, for example, the seedling planting device is divided into planting strip units, and the divided product is rotated around the axis of the vertical posture to reduce the amount of overhang in the lateral direction of the machine. It is also conceivable that the configuration can be switched freely.

However, when changing the posture by dividing the seedling planting device, it is not possible to switch to the storage posture by holding the divided piece of the seedling planting device at that position and rotating it about the axis of the vertical posture. It is not possible because the pieces contact each other, and a suitable means for enabling storage is desired.

An object of the present invention is to rationalize a rice transplanter that divides a seedling planting device and swings it around a longitudinally oriented axis to easily switch to a storage posture that reduces the amount of lateral extension of the machine. It is in the point of composing.

[0007]

A feature of the present invention is that a seedling planting device for planting a plurality of rows, which is connected to a traveling machine body, is configured so as to be freely divided into two divisions in units of planting rows, and each of these divisions is divided. Is swingably supported around the axis of the vertical posture with respect to the swing end of the arm member which is swingable around the vertical axis of the vertical posture. The arm member is configured so that it can be freely switched between a retracted posture in which the seedling planting device is laterally extended by changing the swinging posture of the object and a work posture in which the seedling planting device is not divided. Is expandable and contractable, and the seedling planting device in the working posture is divided into two parts by the extension operation of the arm member so that each divided object is movable in the separating direction. , The effects are as follows.

[0008]

According to the above feature, when the seedling planting device is switched to the retracted posture, the arm member is moved in the separating direction by the extension operation of the arm member, and then the arm member is set in the vertical posture. By changing the swinging posture around the axis and changing the swinging posture around the axis in the vertical posture at the swinging end position of the arm member, the seedling planting device can be installed in the lateral direction of the traveling machine body. It is possible to reduce the overhang amount.

That is, in the present invention, since the arm member for changing the posture of the divided object is configured to be expandable and contractable, the divided object is moved in parallel by the one action of extending the arm member to swing each of them. It becomes possible to separate up to a position where they do not contact each other. For example, as compared with the one using a parallel four-link mechanism, the size can be reduced, the operation mode at the time of posture change is simple, and the design is easy.

[0010]

Therefore, the rice seedling planting device is divided and swung around the axis of the vertical posture to easily switch the storage posture to reduce the overhanging amount in the lateral direction of the machine with reasonable operation. The machine was made compact.

[0011]

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 the front part of a traveling machine body 3 having a steering-operated drive-type front wheel 1 and a drive-type rear wheel 2, and a central portion of the traveling machine body 3 is mounted. The driver's seat 5 is arranged in the rear of the traveling machine body 3, and the seedling planting device A is connected to the rear end of the link mechanism 7 which is driven up and down by the elevating cylinder 6 with respect to the rear end of the traveling machine body 3 so as to roll around the axis X in the front-rear posture. And construct a riding-type rice transplanter.

On the right side of the driver's seat 5, there is provided an elevator lever 8 for controlling the raising and lowering of the plant A for planting seedlings and for turning on and off a planting clutch (not shown), and on the left side of the driver's seat 5. A gear shift lever 9 is provided. The planting clutch controls the seedling planting device A by being interposed in a transmission system from the traveling machine body 3 to the seedling planting device A.

The seedling planting device A is transmitted through a seedling mount 10 on which a mat-like 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 the transmission case 11 through a chain case 12. A rotary case 13 that rotates by power, a pair of planting arms 14 provided in the rotary case 13, and four grounding floats 15 each are configured for eight-row planting, and are placed on the seedling placing table 10 during work. From the lower end of the mat-like seedling W, the planting arm 14 cuts out the seedlings one by one, and is planted in a field scene.

In this rice transplanter, the seedling planting device A is constructed so that it can be freely divided into two parts each having four rows, and the posture of the split product of the seedling planting device A is changed by swinging the arm system that supports this split product. It is configured so that it can be freely switched between a retracted posture in which the amount of lateral extension of the machine body is reduced and a work posture in which no division is performed.

That is, as shown in FIGS. 2 to 5, a horizontally long support frame 17 is fixedly provided on the rear surface of the rolling frame 16 supported by the lower end of the vertical frame 7A at the rear end of the link mechanism 7. An arm member 1 which is swingable around a first support shaft 18 in a vertical posture at both end positions of a support frame 17.
9 is supported, and the left and right planting frames 2 are swingably attached to the swing end of the arm member 19 about a second spindle 20 having a longitudinal axis.
The 2nd bracket 22 formed in 1, 21 is connected.

The arm member 19 is a tubular member 19A and the interior member 1 slidably fitted in the tubular member 19A.
9B and about 150 mm (about half of the width of the mat-like seedling) is expandable and contractible, and a hydraulic cylinder 23 for expanding and contracting is attached. This arm member 1
A first hydraulic motor 2 having a pinion gear 25A that meshes with a first gear 24 mounted on the first support shaft 18 at the base end of 9
5, the arm member 19 with respect to the support frame 17
The swinging posture of the arm member 19 is freely changeable, and the swinging end of the arm member 19 has a second gear 26 attached to the second support shaft 20.
A second hydraulic motor 27 having a pinion gear 27A that engages with is provided, and the swinging posture of the planting frame 21 with respect to the arm member 19 is freely changeable.

The planting frame 21 supports the seedling placing table 10A divided into four sections, the pair of leveling floats 15, and the left and right transmission cases 11, and an output shaft for transmitting power from the machine body. Power from 28 is transmitted to the transmission case 11 via a bevel case 29 and an intermediate shaft 30.

The rolling frame 16 has an output shaft 28.
The rolling frame 16 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 is configured to be able to roll integrally with the input shaft 2 of the output shaft 28 and the bevel case 29.
9A is formed in an occlusal clutch type so as to be separable, and the intermediate shaft 30 is configured to be expandable and contractible by internally fitting the shaft body 30B in a spline-fitted state with the tubular shaft 30A, and has universal ends The joint 31 is provided so as to be bendable.

As described above, the seedling planting apparatus A is configured to be splittable, and the respective divided products are supported swingably with respect to the arm member 19, so that the seedling planting apparatus in the working posture shown in FIG. When A is switched to the retracted posture, the lock member (not shown) that connects the left and right divided objects is unlocked, the bevel case 29 is separated from the output shaft 28, and then the hydraulic pressure is changed as shown in FIG. By the extension operation of the cylinder 23, the divided pieces are separated in a parallel movement state, and by driving the first and second hydraulic motors 25 and 27, the divided pieces of the seedling planting apparatus A are seeded as shown in FIG. By rotating the inner side of the planting apparatus A to the posture toward the rear of the machine, the storage posture is switched to the posture shown in FIGS. 9 and 10, and the lateral extension amount of the seedling planting apparatus A with respect to the traveling machine body 3 is changed. It will be reduced.

When the storage posture is switched to the working posture, the postures of the divided parts of the seedling planting apparatus A are restored by driving the first and second hydraulic motors 25 and 27, and the hydraulic cylinders 23 are contracted to divide. The work posture shown in FIG. 6 is restored by performing an operation in the reverse procedure such as bringing an object close to one another, locking a predetermined locking member, connecting the bevel case 29 to the output shaft 28, and the like.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, it is possible to manually perform the expansion and contraction operation of the arm member, the swinging of the arm member, and the swinging of the divided object with respect to the arm member, respectively.
Further, it is also possible to apply to a seedling planting device having 8 or more articles and a seedling planting device having 8 articles or less.

It should be noted that reference numerals are given in the claims for convenience of 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] Overall side view of rice transplanter

FIG. 2 is a plan view of the transmission system of the seedling planting device in a working posture.

FIG. 3 is a plan view of the arm member in an extended state.

FIG. 4 is a plan view of an arm member that is swung in an extended state.

FIG. 5 is a plan view of the transmission system of the seedling planting device in the retracted posture.

[Fig. 6] Plan view of the rice transplanter with the seedling planting device set in the working posture

[Figure 7] Plan view of the rice transplanter with the seedling planting device separated

FIG. 8 is a plan view of the rice transplanter with the separated seedling planting device rotated.

FIG. 9 is a plan view of the rice transplanter with the seedling planting device set in the retracted posture.

FIG. 10 is a rear view of the seedling planting device set to the storage posture.

[Explanation of symbols]

 3 Traveling body 19 Arm member A Seedling planting device

Claims (1)

[Claims] 1. A seedling planting device (A) for planting a plurality of rows, which is connected to a traveling machine body (3), is configured so as to be freely divided into two divisions for each planting row, and each of these divisions is in a vertical posture. The arm member (19), which is swingable about its axis, is swingably supported about the axis of the vertical posture with respect to the swing end of the arm member (19). (19) Storage posture to reduce the amount of lateral extension of the seedling planting device (A) by changing the swinging posture of the split product, and working posture in which the seedling planting device (A) is not split. The arm member (19) is configured to be extendable and retractable, and the seedling planting device (A) in the working posture is divided into two by the extension operation of the arm member (19). A rice transplanter configured so that objects can be moved in the separating direction.