JPS5820104A - Rice planting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a grounding float that can freely swing up and down around a horizontal axis on the rear side, and a mechanism that biases the front part of the float in a downward direction by changing the biasing force. In order to maintain the flow F in the set posture as the float swings up and down, the circulating planting device is provided with a mechanism that automatically drives the device up and down, and also to maintain the set posture of F a). The mechanism to be changed is related to the Kuta transplanter, and with a simple modification, it is possible to automatically change the setting posture of the grounding float and the float pressing force during seedling planting, depending on the hardness and softness of the muddy soil. The purpose is to improve operability.

Next, the aspects of implementing the present invention will be described in detail with reference to illustrative figures.

Front axle for left and right steering (11, (11 and driving rear vehicle ti#(
27° (2) Interlockingly connected to the t case (3) with an internal gear mechanism VB, the left and right front wheels +11, +
11 is the longitudinal horizontal axis 1! The frame (5) mounted with one engine (4) is connected to the front side of the Mitsu V-yon case (3), and the seat (5) is installed between the left and right rear wheels +21 and 121. 6) In addition to providing t-, there is a control section +71 in the front part? It is arranged to form a running fence body (8), and is connected to the rear of the body via a four-link mechanism α connecting the vertical V cylinder 19), which is driven to move up and down freely and has a front and rear axis rotation. For rolling seedling planting, the device I is installed in series to form a riding-type rice field W*.

The above-mentioned seedling planting is carried out using the upper and lower links (10
m), (10b) There is a U-shaped pewoke (U-shaped) on both left and right ends of the gate-shaped frame (to) that connects the rear ends of (10b).
This bracket (to) and the seedling planting device αυ are planted across the case (2) K, and the left and right pair of link fins and penile are pivotally connected via the front and rear axes. , This link (a), @, the machine body (8) and the seedling planting are carried out horizontally with respect to the vertical center line passing approximately at the horizontal center of the machine body (8) when the device αυ is in a nearly horizontal position. Almost vs. #K
The power is distributed in an inverted trapezoidal shape, and the intersection point fP1 of the virtual extension axis connects the left and right link wings and the upper and lower swing axes of @.
The left and right wheels +21 (K) should be positioned vertically midway between the line connecting the lower ends of 21 and the mud surface, and the device (sha) and the machine (8) will move left and right due to the slope of the mud surface and the plowing platform. Even if it is tilted, the 'F3 planting should be done so that the device αυ does not move horizontally to the left or right.

The device with a seedling tank is made up of the above link 11.
11 Ql) For planting connected to K so as to be able to roll freely, ground floats α3... are installed horizontally in parallel on case a2, and the power take-off shaft (141 and planting are connected to case a2) of the Mitsu V Yon case (3) The input shaft stop (2) is interlocked and connected, and a seedling stand (2) that reciprocates in the left-right direction with a constant stroke is provided, as well as a mechanism αη... for planting seedlings on the mud surface after the float has passed.

The center ground float (to) is planted in case A2JK.
Installation 1 As shown in Fig. 8, a pair of L-shaped arms (to) connected by a rod 0 mt% The planting can be freely swung around its horizontal axis back and forth with respect to the case (2) K. Attach it to the front side arm αS and the front placket of the float (
2) is connected via the hip bending link mechanism (2), and the rear noble arm and flow) flli part bracket (
(to) are pivotally connected via the horizontal axis (goods).

70-)fi on the left and right! , Ql are attached to the case (2) K for planting via the folding printer aII on the front side and via the swinging arm on the rear 11, respectively,
Then, for the planting, each of the swinging arm group and the rear aperture for connecting the central flow F to the case (2) K is attached to the feeding shaft @ which is rotatably provided in the case 02. At the same time, a lever is fixed to the swing shaft @ at multiple points, and the swing position of the rear arm can be changed and fixed by using the lever.
By moving the center flow (13 vertically and parallelly) and following it, moving the left and right floats (2) and (to) in parallel, the seedling planting depth can be changed while keeping the float posture constant. It is possible to do so.

A support link (to) is pivotally connected to the connecting shaft of the front side arm a and the waist-bending link mechanism @, and this link (
2) For planting, link (to) is pivotally connected across the case 02, and for planting into a deep planting equipment using the lever alK, the support link (2) is moved upward (parallel) in conjunction with the depth adjustment. Configure a parallel quadruple link mechanism (to) to move, and
An interlocking member (to) is pivotally connected to the support link (2), and a member for locking the free end of the interlocking member through an elongated hole is attached to the support link, and A tension spring (to) is interposed between the extending end of the lower link C2Nm) of the link machine wag and the interlocking member (goods), and then the interlocking member e@t spring C1)
By changing and fixing the position against K, a mechanism (2) is constructed which urges the front side of the central flute 0 in the downward direction so that the urging force can be freely changed and set.

The control part for the control valve (v) K of the cylinder (9) and the lower link (22a) of the bent link mechanism @ are connected by an inner wire (1), and the end of the outer wire (2) is connected to the vehicle body part. and the interlocking member (goods), thereby causing the central face (a-)
In order to automatically maintain the FC (7 m-) (13) in the set posture as Ql moves up and down, the seedling planting is done using a mechanism (!1lItW4) that raises and lowers the sowing aυ relative to the aircraft.

Then, when the interlocking member is swung against the spring, the end position of the outer wire is changed in conjunction with the movement of the interlocking member.
The front part of the float (to) is lifted and operated, and a mechanism for changing the setting posture of the float (to) is constructed here.
Moreover, by interlocking and connecting the bias force change setting mechanism (2) and the push-fit F attitude change mechanism (2) with the interlocking member (to), the bias force of the bias force change setting mechanism IR@ can be increased. This structure constitutes a mechanism for automatically and reversibly changing the set posture of the float to the front position as the position of the float is changed.

To attach the arm of the central float, a rod is extended to the front side of the float, and one seedling is planted at the tip of this rod. A sensor (441) that goes into the mud is made on it.
The spring used and the biasing force setting fence structure ta
It is mounted so that it can swing freely on the horizontal shaft (A) against K, and the sensor (foundation) is moved from ground to ground when it plunges into mud. In order to increase the time force control of the biasing force change setting model, the sensor and the attitude change mechanism are interlocked and connected with a wire, so that seedling planting can be done depending on the hardness and softness of the muddy soil. The harder the sensor becomes, the larger the amount of rocking displacement of the sensor becomes, increasing the biasing force and interlocking with it, causing the float to change its posture to the lock top position.

In addition, Ua and W in the figure are tools for removing foreign objects such as straw waste that are fixedly placed in front of the sensor and on the left and right sides, and are placed in advance of the sensor K so as to catch foreign objects. This is designed to avoid malfunctions caused by foreign objects getting caught in the sensor.

It may also be placed in front of the /1it-sensor of this J-object removal tool, and as shown by the imaginary line, the removal tool n
It is also possible to curve the lower end to the rear so that the foreign matter that gets caught is left in the mud at a distance as the removal tool moves from ground to ground.

Said sensor - It can be expanded and contracted in the direction of the tube axis.
A freely fixed KWI is formed by the mounting shaft g of the acting one-wound spring, and the driven sensitivity of the sensor can be changed and set by adjusting the amount of plunge of the sensor forge into the mud.
It consists of:

In summary, the present invention provides rice planting 111 described in 1.
The biasing force change setting mechanism (■) and the flow F posture change structure @tube automatically and reversibly change the set posture of the flow Ql to the front stop in accordance with the change setting to increase the biasing force. Interlocking and connecting through the mechanism, plunge into mud 1!
A rocking sensor that is driven by ground movement in 1.
is installed in the device for planting the seedlings, and the biasing force change setting mechanism
In order to increase the biasing force, the sensor and the attitude change mechanism are interlocked and connected.

That is, when planting seedlings, if the mud is hard, the VC increases the biasing force and dulls the control sensitivity of the automatic lifting mechanism based on the up-and-down movement of the float 4, so that the unevenness of the mud surface is suppressed by the float. Therefore, by leveling the mud surface so that the unevenness of the mud surface does not become the control standard of the automatic control system, the flow of the mud surface is constant.(13)
Set the position of the float α3 on the top of the lock so that it rides smoothly against the unevenness of the mud surface. The float stop is set in a slightly horizontal position in order to improve the followability of the elevator due to vertical swinging and to avoid troubles such as disturbance of the mud surface due to sinking of the rear side of the float. Furthermore, the hardness and softness of the mud is detected by a sensor ■, and based on this, the biasing force is automatically adjusted and the flow F attitude change setting is performed, depending on the hardness and softness of the mud. This makes it possible to perform accurate control with good operability.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the rice transplanter according to the present invention, and the first
The figure is the whole @ side view, and the third figure is the front view of the device for planting seedlings.
The figure is a broken side view of the front part of the center float, Figure 4 is a plan view of the main part, and Figure 5 (A). (B) is an explanatory diagram showing the swinging position of the sensor. aD...Seedling planting device, 03...Grounding float, node...Biasing force change setting mechanism, m---
- Drive lifting mechanism, (tl)...Float attitude change mechanism, (421...Front ascending attitude change**,
(Foundation)・・・Sensor.

Claims (1)

[Claims] A grounding float (toward) is provided so that it can freely swing up and down with a horizontal axis on the rear side, and the biasing force of the mechanism (support) that biases the front part of the float (2) in the downward direction is set to change. In order to maintain the tPJ in the set posture, a mechanism m is provided to automatically drive the device surface up and down, and the flow rate is 113. A rice transplanter is provided with a mechanism for changing the setting posture of the rice transplanter, wherein the biasing force change setting mechanism and the float posture changing mechanism are automatically and reversibly set to change the biasing force to six. interlockingly connected via a mechanism for changing the set attitude of the float α3 to the above-mentioned attitude;
The seedling planting device αINK is equipped with a rocking sensor that is driven by the movement of the DK into the mud and the ground movement of the DK, and the biasing force is changed as the rocking displacement of the sensor increases. A rice transplanter characterized in that the sensor and the attitude change mechanism are interlocked and connected in order to increase the biasing force of the setting mechanism.