JPH0661002U - Grooving machine for paddy fields - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the side resistance due to the rolling operation of the pair of left and right drainage groove forming groove plates connected to the rear part of the traveling machine body. [Structure] A pair of left and right drainage groove forming grooved plates a, a connected to the rear part of the traveling machine body A, with the middle portion in the left-right direction as a fulcrum, and around a pair of upper and lower front and rear axial cores X, X. It is supported via a parallel quadruple link mechanism R which can be freely rolled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paddy field gutter cutting machine for forming a drainage ditch between planted seedlings in order to replace water in the paddy field several weeks after planting seedlings.

[0002]

[Prior art]

 Conventionally, in forming a drainage channel, as shown in Japanese Patent Laid-Open No. 4-210501, in order to achieve the versatility of a riding-type rice transplanter, the rear part of the traveling machine body is replaced with a seedling planting device instead of the right and left sides. It is designed to connect a working device equipped with a pair of drainage gutter plates.

When connecting a working device equipped with a groove plate for forming a drainage groove to the rear part of the traveling machine body, the working device is installed at the rear end of the lifting link mechanism provided at the rear part of the traveling machine body. Connect a hitch for connection, and connect one tool bar to the work device connection hitch so that it can be rolled around the front-rear axis, and connect draining groove forming groove plates to both ends of the toolbar. is there.

[0004]

[Problems to be solved by the device]

 According to the above structure, although the drain groove can be formed regardless of the rolling of the machine body, since the position of the rolling fulcrum shaft is at a high position, during the rolling, the groove cutting plate moves up and down and left and right. Since there is also a moving component in the direction, there is a disadvantage that the rolling becomes heavy due to the side surface resistance at the time of forming the groove.

The present invention aims to solve the above-mentioned inconvenience by devising a rolling structure of the groove plate.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is characterized in that a pair of left and right drainage groove forming groove plates connected to the rear part of the traveling body are used as a fulcrum at an intermediate part in the left-right direction, and a pair of upper and lower parts. It is supported by a parallel quadruple link mechanism that can be rolled around the front and rear axis.

[0007]

[Action]

 With the rolling, the pair of left and right grooving plates move vertically in the vertical direction, so that the lateral movement component becomes small.

[0008]

[Effect of device]

 In this way, by adopting a parallel quadruple link mechanism that allows rolling freely, during rolling, the lateral movement component (side surface resistance) of the grooving plate is reduced, rolling becomes lighter, and the rolling of the aircraft is reduced. On the other hand, the followability of the groove plate is improved.

[0009]

【Example】

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

As shown in FIG. 1, in place of a seedling planting device (not shown), a pair of left and right drainage groove forming groove plates a and a are provided at the rear of the traveling body A of the riding type rice transplanter. It is connected so that it can be pitched and rolled freely.

The traveling machine body A of the riding type rice transplanter is configured such that a lifting link mechanism 4 driven by a hydraulic cylinder 3 is provided at a rear portion of the traveling machine body A including a driver's seat 1 and driving rear wheels 2. , A hitch 5 for connecting a working device, which is swingable up and down, is connected to the rear end of the lifting link mechanism 4, and the draining groove forming plate a, a is attached to the hitch 5 for connecting the working device. Is connected so that it can be rolled freely.

The work device connecting hitch 5 is vertically rocked by connecting a lift link mechanism side hitch portion 5a and a groove plate side hitch portion 5b through a parallel link mechanism 5c which is vertically swingable. The grooved plates a, a are configured to be able to follow the mud surface with respect to the pitching of the machine body.

A vertical bracket 7 is connected to the lower part of the hitch 6 on the groove plate side which is connected to the work device connecting hitch 5, and a horizontal middle portion is formed on the front surface of the bracket 7. A pair of upper and lower tool bars 8a, 8a, which can be freely rolled around the front and rear axis X, X respectively, are mounted as fulcrums, and vertical links 8b, 8b are pivoted across the ends of the upper and lower toolbars 8a, 8a. A parallel quadruple link mechanism R that is roll-coupled to form a pair of upper and lower front and rear axis cores X, and can be freely rolled around is formed on the front faces of the vertical links 8b, 8b of the parallel quadruple link mechanism R. The supporting stays 9 and 9 of a and a are connected so that the height position can be changed so that the grooved plates a and a can follow the mud surface with respect to the rolling of the machine body.

A frame 11 for mounting the weight 10 that presses the grooved plates a, a downward is fixedly connected to the lower portion of the bracket 7 in the vertical direction, and the weight of the weight 10 is adjusted according to the hardness of the mud. Is configured so that the groove depth can be changed.

[Other Embodiments] In the above embodiment, the pair of left and right grooved plates a, a are pitched at the rear end of the lifting link mechanism 4 via the hitch 5 for connecting a vertically movable working device. The hitch 6 on the grooved plate side is directly connected to the rear end of the lifting link mechanism 4 so that only the rolling can be freely connected.

Further, in constructing the parallel quadruple link mechanism R, the vertical links 8b and 8b are pivotally connected to each other across the ends of the pair of upper and lower toolbars 8a and 8a. , 8a may be formed by pivotally connecting the support stays 9, 9 of the grooved plates a, a across the ends of the grooves 8a.

Further, the traveling machine body may be a dedicated machine.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a side view of the rear part of the fuselage

FIG. 2 is a plan view of the same.

[Figure 3] Same as the rear view

[Explanation of symbols]

 A Traveling machine a Grooved plate R Parallel 4-link mechanism X Front-rear axis core

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right drainage groove forming grooved plates (a), (a) connected to the rear portion of the traveling machine body (A), with an intermediate portion in the left-right direction serving as a fulcrum, and a pair of upper and lower portions. Grooving machine for paddy field supported by parallel four-link mechanism (R) that can be rolled around the front and rear axis (X), (X).