JPH0451540Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is capable of sliding and fixing a seedling platform sliding guide member, which forms a seedling supply port for the seedling planting claw, in a direction that moves toward and away from the movement trajectory of the seedling planting claw. This invention relates to a seedling feeding device for a rice transplanter that can be freely installed.

Conventionally, in this type of rice transplanter, for example,
As shown in Japanese Patent No. 57-76424, the guide member for sliding the seedling tray is provided with operation parts that can be slid together in two places in the lateral direction of the machine body, and a pair of sliding slides each having one end connected to these operation parts separately. The operation part and the operation lever are interlocked by a dynamic interlocking rod, and a connecting rod that connects these interlocking rods so as to integrally slide and is interlocked with a swingable operation lever, and
When this operating lever is swung, the swiveling motion is converted into a linear motion by the connecting rod and the sliding interlocking rod and transmitted to the pair of operating parts, and the guide member for sliding the seedling tray moves along the seedling planting claw movement trajectory. There was one that was configured to slide in the direction of approaching and separating from the body.

Further, as shown in Japanese Utility Model Application Publication No. 57-94324, for example, the seedling stand is pivoted to the body so as to swing around an axis in a direction perpendicular to the seedling placing surface, and
Operation arms whose free ends are interlocked with the guide member for sliding the seedling tray are provided at two locations in the lateral direction of the machine body, these operation arms are interlocked and connected by an interlocking rod, and an operation lever is attached to one of the operation arms. At the same time, when this operating lever is operated to swing, the pair of operating arms swing together due to the connection by the interlocking rod, transmitting the swinging force to the guide member for sliding the seedling platform, and the sliding of the seedling platform. There is one in which the movable guide member is configured to slide toward and away from the trajectory of the seedling planting claw movement.

Both the former and the latter have relatively complex structures. In the former case, if the lever operation force acts on the left and right sliding interlocking rods to prevent the operation of the sliding interlocking rods and the guide member for sliding the seedling tray from becoming strained, the operating lever can be moved between the interlocking rods. The control lever needs to be located at the center of the left and right sides of the fuselage so that it can act on that area. For this reason, when devices such as the control handle and the fuselage frame are located in the left and right center of the machine behind the seedling stand, it is difficult to center the control levers and the interlocking rods are likely to become strained. In some cases, the operating force required to adjust the removal amount becomes heavy, and a difference in sliding strokes tends to occur between the left and right sides of the sliding guide member for the seedling tray.

In the latter case, in order to prevent the seedling tray sliding guide member from shifting in the lateral direction of the machine regardless of the swinging of the operating arm when adjusting the amount of seedlings taken, the operating arm and the seedling tray sliding guide member are It is necessary to provide flexibility to allow for relative lateral deviation between the two.
For this reason, during work, the seedling platform sliding guide member shifts due to the above-mentioned flexibility and machine body rocking, and the seedling planting claw that takes out the seedlings from the seedling platform comes into contact with the seedling platform sliding guide member. There was a risk that trouble would occur.

The purpose of the present invention is to make it possible to easily adjust the amount of seedlings to be taken out, to have a simple structure, and to adjust the amount of seedlings to be taken with high precision. The goal is to avoid the need for

The characteristic configuration of the present invention is that, in the seedling feeding device of the rice transplanter mentioned above, a plurality of guide member sliding arms are provided which respectively act on a plurality of positions in the lateral direction of the machine body of the seedling platform sliding guide member. A single rotary support shaft in the lateral direction of the aircraft body is extended so as to be able to swing integrally from a plurality of locations distributed between both ends and an intermediate portion, and the rotary support shaft is connected to the plurality of guide member slides. The movable arm is supported by the aircraft body at a location located near each of the end portions and the intermediate portion where the movable arm is connected separately, and the guide member sliding operating lever extends from the rotating support shaft, and the operating arm In order to disable the swinging of the lever, a locking device is fixedly installed to releasably lock the operating lever.

With the above configuration, the present invention has achieved the following effects.

Adjustment force is transmitted through the rotation of the rotational shaft, so it can be used in situations where there is little space for the operation mechanism in areas where the seedling rack support device or vertical feeding device on the back of the seedling rack is crowded. Therefore, the structure can be extremely simple, and the guide member sliding operation lever can be selected at any position in the left and right direction of the rotating support shaft, making it easy to operate with less interference with other devices. Can be installed on.

Compared to adjusting the guide member by operating a lever in the lateral direction of the seedling stand using a link mechanism or cam that rotates around the longitudinal axis of the machine,
Since no force is generated to move the guide member in the lateral direction, there is no need for flexibility to allow lateral displacement or means to eliminate the resulting wobbling, and even after many years of use, the guide member does not move laterally and is Factors that reduce durability, such as damage caused by contact between the attached claw and the guide member, are less likely to occur.

Since the rotational support shaft is supported not only at both ends but also at the center, the rotational support shaft will not be deformed such as bending at the center regardless of the weight of the seedlings acting on the guide member or the operational reaction force. It becomes less likely to occur. Since each of the plurality of arms is connected to the rotational support shaft near the support part of the rotational support shaft by the machine body, the plurality of arms can act independently at multiple locations in the width direction of the guide member. Therefore, when adjusting the removal amount by swinging the lever, the multiple arms act as equally as possible in terms of stroke and applied operating force.
By supporting or sliding the guide member, the removal amount can be smoothly adjusted in a state where adjustment errors such as differences in the amount of displacement at one end of the guide member and the amount of displacement at the other end are less likely to occur.

In other words, the amount of seedlings taken can be adjusted smoothly by simply swinging a single lever, and the planting claw can adjust the amount when taking out the seedlings from one end and the amount from the other end. It has become possible to do this with high precision so that there is no difference in the amount of seedlings taken out.

Furthermore, by making the operating lever serve both as a supporting shaft and an interlocking shaft for multiple arms, and by directly connecting the operating lever to the rotating supporting shaft, and furthermore, by employing a locking device that acts on the operating lever, these points can be improved. The structure of the operating system was also simplified.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, at the bottom of a self-propelled aircraft having a pair of left and right running wheels 1, 1, an engine 2, a control handle 3, etc., one front float 4 and
Two rear floats 5, 5 arranged in parallel in the lateral direction of the aircraft are attached, and four seedling planting arms 6 are attached to the rear of the self-propelled aircraft in parallel in the lateral direction of the aircraft. A walk-behind rice transplanter capable of planting four rows is constructed by providing a seedling feeding device in which four pine-shaped seedlings are arranged side by side on a seedling stand 7 to be separately fed to the rice transplanter 6.

The seedling supply device is constructed as follows.

That is, as shown in FIGS. 2 and 3, a pair of left and right body frames 9a, 9b and a handle support rod 10 extend from the planting mission case 8.
a, 10b, there are four brackets 13 with guide members 12 distributed in the lateral direction of the fuselage, and
The frames 9a, 9b and the handle support rod 10
A, 10b are installed via the brackets 11, and the arms 14 are extended from the handle support rods 10a, 10b, and the seedling stand 7 is connected to the guide member 12, A seedling resting stand slide is attached to the roller 17 of the arm 14 so as to be slidable in the lateral direction of the machine along the guide member 12, and is attached to the seedling resting stand 7 via a pair of left and right arms 25, 25. A moving rod 26 is installed through the planting mechanism case 8 so as to be slid back and forth from side to side in conjunction with the seedling planting arm 6, so that the seedling loading table 7 is linked to the movement of the seedling planting arm 6. It is designed so that it can be driven to slide back and forth from side to side. The seedling stopper part 12a provided in the guide member 12 is provided with a notch 18 that forms a seedling supply port for the seedling planting claw 6a of each seedling planting arm 6, and the seedling planting claw 6a is connected to the notch. 18
1 from the lower end of the seedlings on the seedling stand 7.
The block seedlings for each stock are cut and taken out while being moved relative to each other so that the taking out position with respect to the seedlings changes sequentially in the lateral direction. Furthermore, a vertical feed wheel 27 for the placed seedlings is provided on the lower end side of the seedling platform 7, and the rod 26 is reciprocated by a certain angle each time the seedling platform 7 reaches the left and right sliding stroke ends. As shown in FIGS. 4 and 5, the longitudinal feed wheel body 2 is
Each time the seedling loading table 7 reaches the left and right sliding stroke end, the vertical feed wheel 27 is rotated by a certain angle, and the placed seedlings are moved toward the seedling supply port side. They are forced to be sent to

The insertion hole of the connecting bolt of the guide member bracket 13 to the bracket 11 and the rod insertion hole of the arm 28 are each formed into elongated holes, and the rail 16 is configured to be movable up and down relative to the roller 17. The guide member 12 and the seedling stand 7 are configured so that they can be integrally slid in the direction toward and away from the movement locus A of the seedling planting claw 6a. In order to cause the guide member 12 to act and slide at each of the four locations in the width direction of the machine body, four arms 20, which are respectively engaged with the brackets 13, are connected to one support shaft. 19, and the support shaft 19 is extended from the arm 20.
The fuselage frame 9 is arranged in a dispersed manner near the
a, 9b, and 4 attached directly to the handle support rods 10a, 10b or via the bracket 31.
By rotatably attaching each of the first supports 24 and the second support 32 disposed at the center of the rotation support shaft 19, the support shaft 19 can be attached at both ends and the middle portion thereof. The four arms 20 are supported by the fuselage at points 24 located near the points where the arms 14 are connected, and the four arms 20 are integrally swingable by the fuselage frames 9a, 9b and support rods 10a, 10b. It is supported by Then, the operation lever 21 is extended from the rotation support shaft 19, the operation guide 22 of the lever 21 is fixed to the handle support rod 10, and the lever 21 is aligned with the guide groove of the guide 22 so that the operation lever 21 is extended from the rotation support shaft 19. By swinging around the axis, the rotation support shaft 19 rotates, the arm 20 swings up and down, and the guide member 12 and the seedling stand 7 slide up and down. By swinging the operating lever 21 around the pivot shaft 23 and inserting and locking it into the notch of the guide member 22, sliding of the guide member 12 and the seedling stand 7 can be made impossible. The guide member 12
The lever guide 22 also serves as a locking tool for locking the seedling stand 7 in the sliding adjustment position.

In short, by swinging the operating lever 21, the depth of penetration of the seedling planting claw 6a into the seedling supply port is changed, thereby making it possible to change and adjust the amount of seedlings taken by the seedling planting claw 6a.

Instead of the locking tool 22, a configuration may be adopted in which notches are provided in parallel on the operating lever and these notches are selectively engaged with a locking pin on the body side, and these are collectively referred to as the locking tool 22. .

In the above embodiment, the seedling stand 7 is also configured to be slid together with the guide member 12, but it is also possible to adjust the amount of seedlings taken by sliding only the guide member 12. You may.

[Brief description of the drawings]

The drawings show an embodiment of the seedling feeding device for a rice transplanter according to the present invention, and FIG. 1 is a side view of the walking rice transplanter, and FIG.
The figure is a partially cutaway side view of the rear part of the machine, Figure 3 is a plan view of the seedling tray sliding operation device, Figure 4 is a side view of the connecting part of the seedling tray sliding rod, and Figure 5 is the It is a - cross-sectional arrow direction view of a figure. 6a... Seedling planting claw, 12... Guide member, 18
... Seedling supply port, 19 ... Rotating shaft, 20 ... Arm, 21 ... Operation lever, 22 ... Locking tool, 2
4... Location, A... Trajectory.

Claims (1)

[Claims for Utility Model Registration] The seedling platform sliding guide member 12, which forms the seedling supply port 18 for the seedling planting claw 6a, is slid in the direction toward and away from the movement trajectory A of the seedling planting claw 6a. This is a seedling supply device for a rice transplanter that is fixedly and operable, and has a plurality of guide member sliding arms 20 that respectively act on multiple positions of the seedling platform sliding guide member 12 in the lateral direction of the machine body. The rotary support shaft 19 extends from a plurality of locations distributed between both ends and an intermediate portion of the rotary support shaft 19 so as to be able to swing integrally with each other. The movable arms 20 are supported by the body at locations 24 located near the both end portions and intermediate portions to which the movable arms 20 are connected separately, and the guide member sliding operation lever 21 extends from the rotational support shaft 19. At the same time, the operating lever 21
In order to disable the swinging of the operating lever 21,
A seedling feeding device for a rice transplanter, which is equipped with a locking tool 22 that releasably locks the seedlings.