JPH07274623A - Rice transplanter - Google Patents

Abstract

PURPOSE:To provide a rice transplanter capable of changing the posture to an accommodation posture in which the amount of a seedling planting unit stretched in the transverse direction of the machine body is reduced without requirement of scaling up. CONSTITUTION:This rice transplanter is designed so as to freely change an accommodation posture in which the amount stretched in the transverse direction of the machine body is reduced to a working posture in which the whole machine is not separated by a shaking motion of a link member (L) supporting the separated units of the seedling planting unit. The rice transplanter is equipped with a contact holder member 29 capable of keeping a shaking posture by contact with the link member (L) which is in a posture for setting the seedling planting unit in a working posture.

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 connected to a traveling machine body.

[0002]

2. Description of the Related Art A seedling planting device connected to a rice transplanter is a seedling platform on which mat-shaped seedlings are placed, and a planting arm for cutting one seedling from the bottom end of the mat-shaped seedlings and planting it in a field. , A plurality of ground leveling floats, and a transmission system for driving them, etc., and conventionally, in a seedling planting device for multi-row planting such as 8-row planting, the dimension in the lateral width direction is large, and Since it is a form that projects greatly in the direction, when traveling on the road etc. during non-working, the seedling planting device is temporarily separated from the machine body, and the posture of this seedling planting device is rotated by 90 degrees ( The lateral direction is set to the front-back direction of the machine body, and the lateral end of this seedling planting apparatus is connected to the machine body and pulled to reduce the lateral extension of the planting machine from the machine body.

In addition, 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, the seedling planting device is divided into planting strip units, and the divided products are connected to each other via link members so that the posture can be changed freely. It is also conceivable that the posture can be freely changed.

However, as described above, in the case where the seedling planting device is stored by changing the posture of the divided parts of the seedling planting device, one end portion of the rocking system such as the link member is made to enable the posture change. Is connected to the fuselage side, and the divided object is supported at the other end. Therefore, there is room for improvement from the viewpoint of increasing the strength of this swing system and leading to an increase in size.

An object of the present invention is to rationally construct a rice transplanter that changes the storage posture of the seedling planting device in the lateral direction of the machine body without changing the storage posture without increasing the size.

[0007]

A feature of the present invention is to provide a seedling planting device for multi-row planting, which is vertically movable and connected to a traveling machine body.
Switchable between a retracted posture that reduces the amount of overhang in the lateral direction of the machine by swinging the link member that supports the divided pieces, and a work posture that does not divide the divided pieces. In addition to freely configuring, the seedling planting device is in contact with the link member in the posture set to the working posture, and the contact holding member for holding this swinging posture is provided, and its action and , The effects are as follows.

[0008]

According to the above feature, when the seedling planting device is switched to the retracted posture, the link member is swung to change the posture of the divided object, so that the lateral extension of the seedling planting device is reduced. In addition, when the seedling planting device is switched to the retracted position by swinging the link member, the contact holding member contacts the link member in this working position to hold this position. Becomes

That is, only when the seedling planting device is set in the work posture, the contact holding member supports the link member and stabilizes the posture of the divided object in this work posture. Even if the seedling planting device is raised or lowered during work without raising the height, it is possible to work with the posture of the seedling planting device in a stable state, and the link member is contacted when the seedling planting device is stored. Although it is separated from the holding member, there is no problem even if the posture of the divided object is not stable at the time of storage, so that it is possible to prevent the link member and the system linked to this link member from increasing in size.

[0010]

Therefore, the rice transplanter was reasonably constructed so as to change the storage posture of the seedling planting device in the lateral direction of the machine body without changing the storage posture without increasing the size.

[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 disposed in the vehicle, and the seedling planting apparatus A is connected to the rear end of the traveling machine body 3 via the link mechanism 7 that is driven up and down by the lifting cylinder 6 to form a riding-type rice transplanter.

An elevating lever 8 is provided on the side of the driver's seat 5 for controlling the raising and lowering of the seedling planting device A and for turning on and off a planting clutch (not shown). 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, and the posture of the split product of the seedling planting device A is changed by swinging the link member L that supports this split product. Thus, it is configured to be freely switchable between a storage 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 and 3, a first support having a longitudinal axis is provided with respect to first brackets 17 formed on both sides of the elevating frame 16 connected to the rear end of the link mechanism 7. A first arm 19 is swingably connected around a shaft 18, and a second arm 21 is swingably connected to a swing end of the first arm 19 about a second support shaft 20 having a longitudinal axis. A second bracket 24 formed on the left and right planting frames 23, 23 is swingably connected to a swing end of the second arm 21 about a third support shaft 22 having a longitudinal axis. A link member L is configured by combining the first arm 19 and the second arm 21.

In the planting frame 23, the seedling placing table 10A divided into four sections, a pair of leveling floats 15, and
The left and right transmission cases 11 are supported, and the power from the output shaft 25 to which the power from the machine body is transmitted is transmitted to the transmission case 11 via the bevel case 26 and the intermediate shaft 27. The bevel case 26 and the intermediate shaft 27 are integrally separable from the output shaft 25.
Is configured to be expandable and contractible by a structure in which the shaft body is fitted into the tubular shaft in a spline-fitted state, and is also configured to be bendable by including universal joints at both ends.

As shown in FIGS. 4 and 5, a pair of first brackets 17 is provided at the upper and lower positions, and the first arm 19 is a channel-shaped member that sandwiches the upper and lower first brackets 17 and 17 from the vertical direction. It was this first
Reinforcing members 28 that come into contact with the inner surfaces of the brackets (the surfaces facing each other) are formed on the first arm 19 to improve the strength of the first support shaft 18.

As the second arm 21, a member having a tubular cross section is used, and the swinging end of the first arm 19 has the first and second arms 19 and 21 set in the retracted posture as shown in FIG. It is provided with a plate-shaped contact holding member 29 that comes into contact with the outer surface of the second arm 21 when it is held, and the second bracket 24 is arranged at a position where the second arm 21 is sandwiched from above and below. The end portion of the second bracket 24 is provided with a block-shaped contact holding member 29 that comes into contact with the upper and lower surfaces of the second arm 21 when the second arm 21 is set in the retracted posture.

By constructing the seedling planting apparatus A in this manner, when the seedling planting apparatus A is switched from the working posture shown in FIG. 7 to the storage posture, a locking mechanism for connecting the left and right seedling placing bases 10 ( (Not shown), each lock mechanism (not shown) that connects the left and right planting frames 23 is unlocked, and the bevel case 26 is separated from the output shaft 25. As shown in FIG. 8, the divided pieces are artificially pulled out in the lateral direction of the machine body to largely separate them from each other, and thereafter, the inner side of the seedling planting apparatus A is artificially rotated to a posture toward the rear side of the machine body. 9 and the storage posture of the posture shown in FIG.

When the stored posture is changed to the working posture, the operation is reversed to restore the working posture shown in FIG. 7 and the contact holding member 29 at the swinging end of the first arm 19 is restored. Contact the second arm 21 to maintain their relative attitudes, and the swinging end of the second arm 21 contacts the contact holding member 29 of the second bracket 24 to maintain their relative attitudes. As a result, the posture of the divided object in this storage posture is stabilized, and work can be performed in a state in which inconveniences such as vibrating the seedling planting apparatus A are eliminated without increasing the size of the link member L. Has become.

The reinforcing member 2 formed on the first arm 19
Reference numeral 8 constantly contacts the surfaces of the pair of first brackets 17 that face each other to improve the strength of this portion.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, as shown in FIG. 10, by forming the second arm 21 with a pair of upper and lower tubular members, it is possible to reduce the size of the second arm 21 as compared with the above-described embodiment and to hold the contact and hold formed on the first arm 19. It is also possible to form the member 29 by forming a pair of upper and lower recesses so that the second arm 21 and the second arm 21 are brought into contact with each other in such a manner that they are held.

In the present invention, the link member is an electric motor,
The seedling planting device may be switched to the storage posture by swinging by the driving force of an actuator such as a hydraulic cylinder, or may be restored to the working posture.

It should be noted that reference numerals are added to 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 schematic plan view of a seedling planting device.

FIG. 3 is a schematic plan view of the seedling planting device in a stored posture.

FIG. 4 is a perspective view of a link member and a contact holding member.

FIG. 5 is a cross-sectional view showing the arrangement of reinforcing members.

FIG. 6 is a rear view of the seedling planting device in the retracted posture.

[Figure 7] Plan view of rice transplanter with seedling planting device set to work position

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

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

FIG. 10 is a sectional view showing another embodiment of the contact holding member.

[Explanation of symbols]

 3 Traveling aircraft 29 Contact holding member A Seedling planting device L link member

Claims (1)

[Claims] 1. A seedling planting device (A) for planting a plurality of rows, which is connected to a traveling machine body (3) so as to be able to move up and down, is configured to be divided into a plurality of divisions in units of planting rows. It is configured such that it can be switched between a retracted posture in which the amount of lateral extension of the fuselage is reduced by swinging the supporting link member (L) and a work posture in which division is not performed, and the seedling planting device (A) is set in the work posture. A rice transplanter provided with a contact holding member (29) that contacts the link member (L) in a set posture and holds the swinging posture.