JPH0729792Y2 - Connection structure of support stay for working part in riding type paddy working machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a connecting structure for a support stay for a working part in a riding type paddy working machine such as a rice transplanter, a fertilizer applicator, and a seeder.

[Problems to be Solved by Prior Art and Invention] Generally, a working unit such as a planting unit in this type of riding-type paddy working machine is connected to a working unit support frame that is vertically movable via a lifting link mechanism. There is one in which a support shaft on the side of the working unit is connected and supported so as to be capable of rolling left and right. In such a working unit, the working unit support stay to which the support shaft is integrally attached and the drive case in which the power transmission mechanism is incorporated need to be integrally connected to each other for rigidity. Since the support stay and the drive case are separated from each other, the support stay is connected to the drive case through a dedicated connecting stay, so that the number of parts is large and the assembly is troublesome and complicated. However, there is a problem that the weight of the working unit becomes heavy.

[Means for Solving the Problems] In view of the above situation, the present invention was devised with the object of providing a connecting structure for a working stay supporting stay in a riding type paddy working machine, which can eliminate the following points. The work support frame, which is connected to the riding-type vehicle body so as to be able to move up and down through the elevating link mechanism,
In a riding type paddy working machine in which a support shaft on the working portion side is connected so as to be capable of rolling in the left and right directions, the support shaft for the working portion is provided at a portion passing near the front portion of the working case drive case. A bracket for mounting a member such as a rolling stopper or a working depth adjusting guide is integrally fixed, and the working portion support stay is integrally connected to the drive case via these brackets. is there.

According to the present invention, the rolling load can be distributed and received by the drive case while having a simple structure.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a riding type traveling machine body, and a rear part of the traveling machine body 1 is equipped with a planting work section 3 via a three-point lifting link mechanism 2. That is, the planting support frame 4 is connected to the tip of the lifting link mechanism 2. On the other hand, the planting work section 3 is provided with a support stay 6 formed in a substantially U shape so as to support the back part of the seedling placing table 5 at the tip side, but the support stay 6 is supported at the center part thereof. The parts and the like and 7 are integrally provided. The support shaft 7a protruding from the support bracket 7 is rotatably supported by the planting part support frame 4 about the axis, and the working part 3
It is configured to be able to perform rolling oscillation. Further, stopper mounting brackets 10 and 11 for mounting the rolling stoppers 10a and 11a are integrally mounted on both left and right sides of the supporting stay 6 with the supporting bracket 7 interposed therebetween. Further, a planting depth (working depth) adjusting guide 8 is integrally formed on the base 11. The working parts 3 of the rolling stoppers 10a and 11a attached to the end portions of the brackets 10 and 11 are the support shafts.
In the case of rolling and rocking to the left and right with 7a as a fulcrum, the lower link 2a of the lifting link mechanism 2 is contacted from below in order to limit the amount of rocking.

The working unit 3 is provided with a drive case 12 for inputting the power from the traveling machine body 1 side via a power transmission shaft 13, and the input power is further provided to the working unit case 14 side rearward. It transmits, and drives the operating parts necessary for paddy work, such as planting operation of planting claw 15, reciprocating left and right movement of seedling placing table 5, vertical feeding operation of planted seedlings placed on seedling placing table 5, etc. The left and right side surfaces of the drive case 12 are integrally connected to and supported by the support stay 6.

In other words, the support stay 6 is arranged so that the crotch part passes near the front part of the drive case 12, and the brackets 7 and 10 integrally attached to the crotch part and the planting depth adjusting guide 8 are disposed. The plate surface extends in the front-rear direction and the up-down direction, and these plate surfaces extend rearward so as to contact and face the front side surface of the drive case 12.
Then, the brackets 7 and 10 and the extending portions of the guide 8 are integrally fixed to the side surface of the drive case 12 from the left and right sides through the tightening bolts 16 so that the support stay 6 and the drive case 12 are rigidly attached. It is configured to be fixed.

In addition, an auxiliary stay 17 is provided at one corner of the support stay 6.
However, when the working section is a fertilizer transplanter, the fertilizer application hose can be disposed through the gap between the auxiliary stay 17 and the support stay 6.

In the embodiment of the present invention constructed as described above, the drive case 12 and the support stay 6 are integrally attached to each other by integrally connecting the portion of the support stay 6 near the front side surface of the drive case 12 as described above. As a result, it is not necessary to separately prepare a connecting stay unlike the conventional one in which the drive case and the support stay 6 are connected using a dedicated connecting stay, and these are not necessary. Since no members are required, the support stay 6 and the drive case 12 can be directly connected to each other, and the number of parts is small, so that the structure can be simplified and the working unit 3 can be made light and compact. Therefore, the front-rear balance of the working unit 3 is improved, and the traveling property and the planting property can be improved.

Moreover, the support stay 6 and the drive case 12 are integrally connected together with the support bracket 7 provided on the support stay 6,
The left and right rolling stopper mounting brackets 10 and 11 (for the mounting bracket 11, in the embodiment, the planting depth adjusting bracket 8 integrally provided therein) are slightly extended rearward as they are, and the drive case 12 The side surfaces are closely opposed to each other, and these are integrally connected to each other to make them rigid. As a result, the members can be commonly used and the shape of the drive case 12 can be simplified. In addition, the rolling load that acts when the working unit 3 rolls to the left and right is different from that in the related art in which the support stay 6 and the rear side of the drive case 12 are connected to each other by using the connection stay. The mounting brackets 10 and 11 provided for mounting and the drive case 12 are integrally connected to each other, and they are supported and supported by the left and right sides of the drive case 12 at a position near the load point of the rolling load (position of the support shaft 7a) in a side view. About
It is possible to effectively use the strength of the drive case 12 that is firmly configured by using a mold, and it is possible to form a load distribution structure that is also advantageous in terms of strength. In addition to simplification, lightweight and compactness can be surely achieved.

In this embodiment, in the rolling stopper mounting brackets 10 and 11, one of the brackets 10 is directly mounted on the side surface of the drive case 12, but the other bracket 11 is mounted.
Is configured to be attached to the side surface of the drive case 12 via a planting depth adjusting guide 8 that is integrally attached to the bracket 11. The planting depth adjusting guide 8 is a bracket.
Since it is integrated with 11, it is practically the same member,
There is no problem with such a thing.

[Advantages] In short, since the present invention is configured as described above, the working part support stay is integrated with the drive case through various brackets that are integrally attached to the support stay and are necessary for paddy work. As a result, it is no longer necessary to use a dedicated connecting stay as in the past, and it is possible to effectively connect the support stays by using the brackets necessary to configure the paddy working section. Therefore, the number of parts can be reduced, the structure can be simplified, and the weight and the size can be reduced.

[Brief description of drawings]

1 shows a side view of a riding type paddy working machine according to the present invention, FIG. 1 shows a side view of the riding type paddy working machine, and FIG. FIG. 3 is a side view of the stay portion, FIG. 3 is a rear view of the support stay portion, and FIG. 4 is a perspective view of a main portion of the support stay portion. In the figure, 1 is a traveling machine body, 3 is a planting work section, 6 is a support stay, 7 is a support bracket, 8 is a planting depth adjustment guide,
10 and 11 are rolling stopper mounting brackets, 12 is a drive case, and 16 is a tightening bolt.

Claims (1)

[Scope of utility model registration request] 1. A riding-type paddy field comprising a working-section supporting frame, which is connected to a riding-type traveling body via an elevating link mechanism, so that the working-section-side supporting shaft is connected to and supported by a working-section-side supporting shaft so as to be able to swing left and right. In the working machine, a bracket for fixing the supporting shaft, rolling stopper, working depth adjusting guide, or other member is integrally fixed to a portion of the working stay supporting stay near the front of the working case drive case. In addition, the working part support stay connecting structure of the riding type paddy working machine is characterized in that the working part support stay is integrally connected to the drive case through these brackets.