JPS6033765Y2 - Structure of operating section of riding rice transplanter - Google Patents

Description

[Detailed description of the invention] The present invention provides a grounding foot that is swingable around a horizontal axis, and is used to plant seedlings in order to maintain the float in a set posture as the grounding float swings up and down. In order to automatically raise and lower the device, in order to plant seedlings, the operating section of the device lifting mechanism and the float are connected with an inner wire, and in order to change the float setting posture, a wire is connected to the outer wire end on the operating section side. An operating section structure for a riding rice transplanter, in which a holder is swingably provided to change the position, and an operating tool for manually operating the inner wire is freely switched to a state that allows the inner wire to be operated by the float, The purpose is to improve operability through simple layout improvements.

The present invention is characterized in that, in the operating section structure of the above-mentioned riding-type rice transplanter, the operating tool for changing the position of the holder and the operating tool for the inner wire are distributed to the left and right with respect to the passenger seat. shall be.

In other words, when planting seedlings, a single release wire serves as both the lifting mechanism for the device and the operating system for the mechanism that changes the setting posture of the ground float, and two operating tools for these are generally connected to the passenger seat. However, the operating space is narrow, making it difficult to operate, and there is a high risk of erroneous operation. By arranging the distribution into 2 sections, it is not only possible to make it difficult for erroneous operations to occur, but it is also easier to operate in terms of space, making it possible to improve operability with extremely simple improvements.

Next, embodiments of the present invention will be described in detail with reference to illustrative drawings.

The left and right operating front wheels 1, 1 and the driving rear wheels 2, 2 are interlocked and connected to the case 3 by an internal gear transmission, and the left and right front wheels 1, 1 are provided so as to be able to rise and fall freely around the front and rear horizontal axis. , a frame 5 on which an engine 4 is mounted is connected to the front side of the mission case 3, a passenger seat 6 is provided between the left and right rear wheels 2, 2, and a control unit 7 is arranged in the front part, so that the vehicle can be driven. A seedling planting device 11 is connected to the rear of the fuselage via a four-speed link mechanism 10 that constitutes the fuselage 8 and is connected to an elevating drive device 9. First, it consists of a riding-type rice transplanter.

The seedling planting apparatus 11 includes the link mechanism 1.
Case 1 is planting connected to 0 in a rolling manner.
2, grounding floats 13 are arranged in parallel in the horizontal direction, and the power take-off shaft 14 of the transmission case 3 and the planting shaft are interlocked with the input shaft 15 of the case 12, and are reciprocated in the left and right direction with a constant stroke. A seedling stand 16 for planting seedlings and a mechanism 17 for planting seedlings on the mud surface after the float has passed are provided.

When the central grounding float 13 is attached to the case 12, as shown in FIG.
The front side arm 19 and the bracket 21 at the front of the float are connected via a waist bending link mechanism 22, and the rear side arm 20 and the bracket 23 at the rear of the float are attached so as to be swingable around a horizontal axis back and forth. are pivotally connected via a horizontal shaft 24, and by changing and fixing the swinging position of the rear side arm 20, the float 13 is moved vertically in parallel, and seedlings can be planted at a depth while keeping the float posture constant. This allows you to change the settings.

As shown in FIGS. 1 to 3, a mechanism 25 for biasing the front side of the float 13 in the downward direction is provided so that the biasing force can be artificially changed and set, and the float 13 is caused to swing up and down. Accordingly, in order to maintain the float 13 in the set posture, the seedling planting is performed using a mechanism 2 that automatically drives the device 11 up and down.
6, a mechanism 2 for changing the set attitude of the float 13;
7 is provided, and the urging force change setting mechanism 25 and the setting attitude changing mechanism 27 are interlocked and connected by an interlocking mechanism 43, so that the changing setting of the urging force and the change of the setting attitude of the float 13 can be performed simultaneously with one operating tool 28. This is done so that it can be carried out appropriately.

The urging force change setting mechanism 26 is constructed by extending the lower link 22a of the bending link mechanism 22 beyond the bending axis, and extending the upper link 22b beyond the axis of connection to the arm 19. A member 29 is connected to the extension part, and the operating tool 28 is provided on one side of the seat 6 so as to be swingable around the horizontal axis 30, and the operating tool 28 has an interlocking arm 47 and the lower link 22a. Over the extension part, an inner wire 31a and a tension spring 32 connected thereto are provided, with the spring 32 connected to the lower link side, and an outer wire 31b is provided between the fixing member 33 disposed near the interlocking arm 47 and the tension spring 32 connected thereto. It is provided across the continuous member 29.

For the seedling planting, the device lift mechanism 26 is configured, and the drive device 9 is composed of a cylinder 34 connected to the upper link 10a of the four-speed link mechanism 10, and a control valve 35 for the cylinder 34. A shift fork 36 for pushing and pulling the spool 35a as an operation part for the shaft 37 is provided on the shaft 37, and an arm 38 attached with a return spring 52 is connected to the shaft 37, and this arm 38 and the lower link 22a , and an outer wire 39b is connected to the holder 41 of the posture changing mechanism 27, which will be described later, near the arm connection part of the upper link 22b, thereby preventing the float 13 from being bent due to unevenness of the tiller. Seedling planting is carried out by driving the device 11 up and down with the vertical swing, and automatically maintaining the float 13 in a set posture.

A boss 49 of an operating tool 48 is fitted onto the shift fork shaft 37, and the operating tool 48 is positioned on the opposite side of the seat 6 from the urging force setting operating tool 28, and a ball detent mechanism is installed. Valve spool 35 by 50
An arm 51 that maintains a neutral state is connected to the boss 49, and by the action of a ball detent mechanism 50 that resists the downward biasing force of the float 13, the lifting position of the device 11 for seedling planting can be fixed, and the float For seedling planting, the device 11 can be manually raised by operating the operating tool 48 that resists the downward biasing force of the device 13, and by removing the arm 51 from the spool operation area, the automatic lifting mechanism 26 can be activated. It is possible to switch to an automatic control mode that follows the vertical movement of the float 13.

When configuring the posture changing mechanism 27, the tl of the operating tool 28 is
A U-shaped holder 41 for engaging an outer wire is loosely fitted onto a shaft 40 parallel to the moving axis ao, and a fixing member 42 is provided on the shaft 40 so as to be located on the outside of the holder 41, and this fixing member A long hole a around the shaft 40 is bored in 42, and the holder 41 is inserted through the long hole a.
A bolt b is provided to be screwed into the shaft 4 of the holder 41.
By fixing the swinging position around 0, the elongation absorption operation of the inner wire 39a can be easily performed from the outside of the machine body, and an arm is attached to the other end of the shaft 40 and the operating tool 28, respectively. 44 and 45 are connected, and the arms 44 and 45 are interlocked and connected by a member 46, and the arms 44 and 45 and the interlocking member 46 are connected to the interlocking mechanism 43.
As a result, the set attitude of the float 13 is automatically and reversibly changed to the forward position by the swinging operation of the single operating tool 28, in accordance with the change setting to increase the biasing force of the above-mentioned attitude change setting mechanism 25. That's how it is.

In the interlocking mechanism 43, the connecting hole C of the inner wire 31a to the arm 47, and the arm 4
Interlocking member 4 linked to outer wire 39b for 4
6 connection holes d are provided at intervals in the radial direction around the shaft 30, and by changing the connection points, the biasing force by the operating tool 28 and the float setting attitude angle can be adjusted. The interlocking correlation can be set and changed freely.

[Brief explanation of drawings]

The drawings show an embodiment of the structure of the operating section of the riding rice transplanter according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a control system diagram, and Fig. 3 is a detailed diagram showing the arrangement of the operating tools. It is a diagram. 6...Boarding seat, 11...Seedling planting device, 13...Grounding float, 26...
Elevator lowering, 28...Holder operation tool, 35a.
.....Operation unit, 39a ..... Inner wire, 41 ..... Holder, 48 ..... Operation tool for inner wire.

Claims (1)

[Scope of utility model registration request] A grounding float 13 is provided to be able to swing freely around a horizontal axis, and the seedling planting device 11 is automatically raised and lowered in order to maintain the float 13 in a set posture as the grounding float 13 swings up and down. For planting, the operation part 35a of the device lifting mechanism 26 and the float 13 are connected with an inner wire 39a, and in order to change the set posture of the float 13, a holder 41 is connected to the outer wire end on the operation part side. It is provided so that it can be swung freely in order to change its position and fix it.
This is an operating section structure of a riding rice transplanter, in which an operating tool 48 for manually operating the inner wire 39a can be freely switched to a state that allows the inner wire to be operated by the float 13, and the holder 41 is changed in position. The operating tool 28 and the inner wire operating tool 48 are placed on the boarding seat 6.
The operating section structure of a riding rice transplanter is characterized in that distribution is arranged left and right.