JPH0546224U - Vertical adjustment device for side float - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention has improved the structure of the side float of a rice transplanter to allow adjacent floats to be planted by mud pushing or water pushing during high speed planting work in soft fields. This is to prevent the effects on the seedlings. [Structure] The center float and the side float of the rice transplanter are supported and connected by independent supporting members, and the height of the side float from the rice field can be arbitrarily changed separately from the predetermined height of the center float.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a float height adjusting structure of a rice transplanter.

[0002]

[Prior Art]

 In conventional rice transplanters, the technology for controlling left and right rolling has become publicly known by providing a horizontal control sensor, an acceleration sensor, etc. in the planting device and providing a hydraulic cylinder that operates in response to the signal. There is. In the case of such a planting device, it is possible to prevent rolling and a change in the front and rear inclination angles without side floats, and to perform stable planting, and the side float is not required at the time of planting. However, in hard fields and pillows, side floats are required to remove the wheel marks and level the ground.

[0003]

[Problems to be solved by the device]

 However, when the float is attached, the “muddy water push” occurs due to the float when working on a soft field or when working at high speed, and especially when the side float is installed, the plant is placed right next to the side float. Since the seedlings that have already been attached are adjacent to each other, the adjoining seedlings are covered with muddy water, which causes a problem that the planting posture of the seedlings is disturbed, collapsed, or floating seedlings are caused. For this reason, it is desirable to remove the side float from the paddy field at the time of high-speed planting work in soft fields, and to ground the side float on a hard field or on the pillow, so that the height of this side float can be easily switched. A rice transplanter was desired.

[0004]

[Means for Solving the Problems]

 The object of the present invention is as described above, and has the following structure in order to achieve the object. In the rice transplanter, the center float and the side floats are supported and connected by independent supporting members, and the height of the side floats above the rice field can be arbitrarily changed separately from the predetermined height of the center float. ..

[0005]

[Action]

 Next, the operation will be described. The side float height adjustment lever and planting depth adjustment lever are connected to the independent side float attachment part and center float support rod part.In a hard field or headland, the side float height adjustment lever is used to adjust the planting depth. By connecting to the lever so that the height of the center float and the side float can be adjusted at the same time, leveling work can be performed.In soft fields, the side float height adjustment lever can be detached from the planting depth adjustment lever. The side floats are raised so that only the center float can work, and it is possible to prevent the damage of the adjacent seedlings due to the pushing of the muddy water.

[0006]

【Example】

 The purpose and structure of the present invention are as described above, and the embodiments shown in the accompanying drawings will be described below. FIG. 1 is a side view of a rice transplanter having a float structure according to the present invention, FIG. 2 is a plan view showing a structure of a float portion F, FIG. 3 is a side view of a planting portion, and FIG. 4 is a planting depth adjusting lever 5 and a side float height. FIG. 6 is a plan view showing a lever guide configuration of a height adjusting lever 6.

The overall structure of the rice transplanter will be described with reference to FIG. The rice transplanter in the figure is of a riding type, and the planting device B is mounted on the rear part of the traveling part A so as to be able to move up and down. In the planting device B, the seedling placing table 9 is placed on the planting mission case 8 so as to be able to reciprocate left and right, and the planting claws 10 are rotatably arranged at the rear of the planting mission case 8. Since the float portion F having the structure of the present invention is arranged below the planting mission case 8, the planting seedlings are placed on the seedling placing table 9 during planting work. The planting claws 10 rotate in synchronism with the left and right movements of the mounting table 9 to cut out a certain amount of seedlings and plant them in a field leveled by a float.

The structure of the float portion F of the present invention will be described with reference to FIGS. 2 to 4. The float support rod 1 is pivotally supported by the support members 11 and 11, and the support members 11 and 11 are fixed to the planted mission case 8 so that the float support rod 1 can rotate between the support members 11 and 11. The support pipe 4 fitted onto the outside is provided, the side float support pipes 12L and 12R are fitted onto both ends of the float support rod 1, and the pins 13 and 13 are penetrated through the float support rod 1 and the support pipe 12. It is fixed so that the left and right side floats 3L and 3R can move up and down in parallel at the same time. Then, the support rod 4a is projected obliquely rearward and downward from the center of the support pipe 4, and the support portion 2a provided at the center of the center float 2 is suspended, and the support rod 12a is obliquely rearward and downward from the support pipes 12L and 12R. 12a is projected and the supporting portions 3a and 3a provided at the center of the side floats 3L and 3R are suspended.

Further, a planting depth adjusting lever 5 is projected forward and upward on one side (left side) of the center float 2 and is parallel to the planting depth adjusting lever 5 on the support pipe 12L of the side float 3L. The side float height adjusting lever 6 is projected to the center float 2 and the side floats 3L and 3R are independently rotated by the rotation of the planting depth adjusting lever 5 and the side float height adjusting lever 6. Is possible. The side float height adjusting lever 6 is divided in the middle, and the connecting member 6a is pivotally supported by the pin 14 at the base, and the torsion spring 6b is mounted on the pin 14 to plant the connecting member 6a. The connecting member 6a is urged to rotate toward the depth adjusting lever 5, and the tip of the connecting member 6a is U-shaped so that it can be fitted to the base of the planting depth adjusting lever 5. The handle portion of the height adjusting lever 6 is projected from the connecting member 6a, and the tips of the planting depth adjusting lever 5 and the side float height adjusting lever 6 are inserted into the lever guide 7 fixed to the transmission case 15. ..

As shown in FIG. 4, the lever guide 7 has a lever hole 7c of the planting depth adjusting lever 5 and a lever hole 7a of the side float height adjusting lever 6 which are bored in parallel with each other to form the lever hole. A lever hole 7b is further formed on the side of 7a, and both levers 5 and 6 simultaneously rotate within the lever holes 7c and 7a. When the side float height adjusting lever 6 is rotated into the lever hole 7b. The connecting member 6a is disengaged from the planting depth adjusting lever 5 so that both can independently rotate.

The float part F has a hydraulic cylinder that operates in response to a signal from a sensor because it sways or changes its front-back inclination during work. Attitude control is performed. Therefore, even if the side float is removed and only the center float is used for the planting work, the rolling does not occur.

In the planting device B whose posture is thus controlled, when the planting depth adjusting lever 5 and the connecting member 6a are connected, the planting depth of the seedling is adjusted by operating the planting depth adjusting lever 5. The heights of the center float 2 and the side floats 3L and 3R are changed by the center float 2. Normally, the returning force of the torsion spring 6b causes the connecting member 6a to be connected to the planting depth adjusting lever 5 and rotate integrally therewith. 2 and the side float 3 can be raised and lowered at the same time. Also, when the side float adjusting lever 6 is rotated into the lever hole 7b of the lever guide 7, the connecting member 6a is disengaged from the planting depth adjusting lever 5 and the side float 3 is pulled up to the uppermost position. Since only the center float 2 can be rotated, the height of only the center float 2 can be adjusted by the planting depth adjusting lever 5, and the planting depth can be adjusted.

Therefore, in a hard field or headland, the side float height adjusting lever 5 is located in the lever hole 7a of the lever guide so that the center float 2 and the side float 3 can be adjusted in height at the same time. The work is done by adjusting the planting depth while erasing the flats and wheel marks. Then, when working in a soft field, the side float height adjusting lever 5 is placed in the lever hole 7b of the lever guide to raise the side float 3 to prevent the mud from being pushed, and only the center float 5 is adjusted in planting depth. The height is adjusted with the lever 5, and the planting is performed. The height of the side floats can be adjusted not only by using the levers as described above, but also by raising or lowering one or more side floats by motor drive or hydraulic drive.

[0014]

[Effect of the device]

 The present invention has the following effects by being configured as described above. That is, in a hard field or headland, the side float can be operated integrally with the center float, and the functions and functions similar to those of the conventional side float have functions such as leveling and wheel mark erasing. In soft fields, the installation height can be changed separately from the center float by operating one lever on both side floats, so you can change the height of the center float (without changing the height of the center float). Without side), only the side float can be floated above the paddy field, and it is possible to prevent mud pushing and water pushing due to the side float. Therefore, there is no influence on the planting posture of the adjacent seedlings at high-speed planting.

[Brief description of drawings]

FIG. 1 is a side view of a rice transplanter having a float structure according to the present invention.

FIG. 2 is a plan view showing a configuration of a float portion F.

FIG. 3 is a side view of a planting part.

FIG. 4 is a plan view showing a lever guide configuration of a planting depth adjusting lever 5 and a side float height adjusting lever 6.

[Explanation of symbols]

 F Float part 2 Center float 3 Side float 5 Depth adjusting lever with plant 6 Side float height adjusting lever 6a Connecting member

Claims (1)

[Scope of utility model registration request] 1. In a rear-planting type rice transplanter, the center float and the side floats are supported and connected by independent supporting members, and the height of the side floats from the paddy field is arbitrarily changed separately from the predetermined height of the center float. A vertical adjustment device for a side float, which is configured to be possible.