JP3386554B2 - 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 device connected to a traveling machine. 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] Further, as described above, the operation of changing the attitude of the seedling planting apparatus and connecting it to the airframe is not only troublesome, but also requires time and labor, so that improvement is required. There is room. For the purpose of solving this inconvenience, the seedling planting device is divided into two for each planting streak, 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 machine body. It is also conceivable that the storage position can be switched freely. [0005] However, in the apparatus in which the seedling planting apparatus is divided into two and the storage position is switched by changing the posture of the divided material, the weight of the divided material increases. For example, the divided material is connected via a link member. In the configuration in which the swinging posture is changed to the retracted posture by changing the swinging posture, it is necessary to increase the strength of the link member to withstand the weight of the divided object, and furthermore, to increase the swing stroke of the link member. Therefore, there is room for improvement because the configuration for switching the seedling placement apparatus to the storage position is increased and the operating force required for performing the storage operation is increased. SUMMARY OF THE INVENTION An object of the present invention is to provide a rice transplanter that can be switched with a simple configuration so as to reduce the amount of overhang of the seedling planting device in the lateral direction of the machine and that can be operated easily. [0007] The present invention is characterized in that the left and right ends of a plurality of seedling planting apparatus connected to a traveling machine body.
It is configured so that it can be divided into the central part in planting strip units,
The seedling planting device is operated with the left and right splits behind the center.
The entire seedling plant is located side by side in the lateral direction
And intruding stored position within the width of the central portion of the left and right end portions
It is configured so that it can be freely switched to a work posture in which division into minutes is not performed, and its operation and effect are as follows. According to the above feature, when the seedling planting device is switched to the storage position, the size of the seedling planting device in the lateral direction of the machine is changed by changing the posture of the left and right divided portions of the seedling planting device. At the time of storage, the posture of only the left and right divided portions is switched with respect to the central portion in the left and right direction of the seedling planting device. Therefore, the seedling planting device is divided into two as described above. The weight of the divided part is smaller than that of the one, and the operation stroke of this divided part is also small, and when switching to the working posture, it is only necessary to connect and fix the left and right divided parts to the center part It will be enough. In other words, according to the present invention, only a part of the seedling planting apparatus is changed in posture when the seedling planting apparatus is stored, so that the storing operation can be performed lightly and the operating system for storing the heavyweight can withstand the storing operation. There is no need to configure it, and there is no need to increase the operating stroke as compared with the case where the seedling planting device is divided into two, and the posture of the divided portion is switched with respect to the central portion where the posture is not changed during storage. Even when the posture is switched, a simple structure such as connecting and fixing the divided portion to the central portion is sufficient. As a result, a simple arrangement can be used for switching the seedling planting device to reduce the amount of overhang in the lateral direction of the machine, and a rice transplanter capable of easily performing the switching operation is rationally constructed. . 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. The driving seat 5 is disposed in the vehicle, and the seedling planting apparatus A is connected to a rear end of the traveling machine body 3 via a link mechanism 7 driven up and down by a lifting cylinder 6 to form a riding type rice transplanter. An elevating lever 8 is provided on the right side of the driver's seat 5 for raising and lowering the seedling planting device A and turning on and off a planting clutch (not shown). A 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. As shown in FIG. 2, the seedling planting apparatus A includes a seedling table 10 on which a mat-shaped seedling W is placed, a transmission case 11 to which power is transmitted from the traveling machine body 3, and a chain case 12 from the transmission case 11. Rotary case 13, which is rotated by the power transmitted through the arm, a pair of planting arms 14, which are provided on the rotary case 13, a sliding rail 15, which supports the seedling mounting table 10 so as to be slidable in the left-right direction, and four leveling floats The planting arm 14 is provided for each of the eight rows, and each of the sixteen plants is provided for the eight-row planting. At the time of work, the planting arm 14 cuts out the seedlings one by one from the lower end of the mat-shaped seedling W placed on the seedling placing stand 10 and plants the seedlings in the field scene. ing. In this rice transplanter, two rows are divided at both left and right end portions of the seedling planting apparatus A, and the attitude of the seedling planting apparatus A with respect to the central portion is changed to reduce the lateral extension of the machine body. It is configured to be freely switchable between a posture and a working posture in which division is not performed. That is, as shown in FIGS. 2 and 3, one of the chain cases 12 corresponding to the four central sections is connected and fixed to a frame 17, and
The left and right chain cases 12 are supported by a separation frame 17A, which is separably connected by clamps 18 at the left and right end positions, and swing around the first axis X1 in a vertical position with respect to the frame 17. The first arm 19 is movably supported, and the second arm 20 is supported by the swinging end of the first arm 19 so as to be swingable around a second axis X2 in a vertical position. A chain case 12 is supported, and two seedlings 10A, 1 on the left and right sides of a seedling mounting table 10, a slide rail 15, and a leveling float 16 are supported.
5A and 16 are supported by the separation frame 17A so that they can be separated from the central four. When the seedling planting apparatus A in the working posture is switched to the retracted posture as shown in FIG. 5, the whole seedling planting device is raised to a predetermined level or more and the leveling float 16 is separated from the ground. By operating the clamp 18, the left and right chain cases 12 and the like are separated from the frame 17 and the transmission shaft for the chain case 12 is separated.
The release mechanism of the lock mechanism 21 arranged at the upper and lower positions of the seedling planting device A separates the left and right two rows of seedling rests 10A from the center, and the operation of the lock member 22 causes the left and right two rows of seedling mounting tables 10A. After the sliding rail 15A is separated, the divided portion is pulled out outward on both sides by manual operation, and is swung rearward of the fuselage, whereby the first and second arms 19 and 20 are swung. 4 and 7 through the posture shown in FIG.
The posture is switched to the posture shown in the figure to reach the storage posture, and the amount of overhang of the seedling plant A in the lateral direction of the machine can be reduced. When the seedling planting apparatus A is switched to the retracted position in this way, traveling on the road can be performed without hindrance. Further, even when the rice transplanter is moved by truck, the whole seedling planting apparatus is not separated. It can be mounted on the truck bed. Incidentally, when restoring the seedling planting apparatus A to the working posture, the operation reverse to that described above is performed. [Alternative Embodiment] The present invention, in addition to the above embodiment,
For example, it may be applied to a seedling planting apparatus for eight or more rows such as 10 rows. It is also possible to adopt a configuration in which the operation for switching to the storage position and the operation for restoring to the working position are performed using the driving force of an actuator such as an electric motor or a hydraulic cylinder. 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 accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a rice transplanter. FIG. 2 is a schematic plan view of a seedling planting apparatus. FIG. 3 is a schematic plan view of a side portion of the seedling planting apparatus. FIG. 5 is a plan view of a rice transplanter in which the seedling planting apparatus is set to a working posture. FIG. 6 is a plan view of a rice transplanter in which right and left ends of the seedling planting apparatus are separated. ] Top view of rice transplanter with seedling planting device set in retracted position [Explanation of symbols] 3 Traveling machine A Seedling planting device

Claims (1)

(57) [Claims] [Claim 1] The left and right ends of the seedling planting apparatus (A) for multiple planting connected to the traveling machine body (3) are centrally arranged in planting unit units.
The seedling plant (A)
The left and right divided parts are in the lateral direction of the fuselage behind the central part.
The entire seedling plant (A) is located side by side
In the storage position that has entered the width, and in the center of the left and right ends
Rice transplanter it has switched freely configured and working posture which does not perform division against.