JPH025697Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support device for a scraper that scrapes seedling soil remaining on the top surface of an apron in a seedling stand of a rice transplanter.

Conventionally, as shown in Utility Model Publication No. 53-11608, a scraper was attached by elastic pressure to the bottom of a seedling stand or a member integrated therewith, and as a result, the position of the scraper could be easily adjusted without using tools. A scraper support device has been devised that can hold a constant gap between the apron and the scraper. Therefore, the number of parts increases, and it is necessary to press the elastic body by hand during assembly, making assembly complicated. Furthermore, rust occurred on the elastic body and the portion to which the elastic body was fixed, which caused problems in durability.

Therefore, the present invention provides a scraper support device in which the protrusion for crimping the scraper is integrally formed with the scraper or seedling stand made of synthetic resin, thereby simplifying the structure and improving the ease of assembly. The purpose is to provide

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

As shown in Fig. 1, the planting section 1 of the rice transplanter has a planting rod 3 rotatably supported by the machine body 2, and the planting rod 3 is rotated at its tip by power transmission from the rice transplanter. is driven so as to draw a predetermined trajectory a. Further, a seedling stand 6 made of synthetic resin is arranged along a handle 5 extending to the rear of the machine body 2, and the seedling stand 6 is slidable by a slide piece 7 fixed to the machine body 2. It is freely supported and can reciprocate left and right by a transverse feed drive device 9 to which power is transmitted from the transmission. Further, as shown in FIG. 2, an apron 10 is provided at the lower end of the seedling stand 6.
is fixed by screwing into a long hole 11 provided in the machine frame 2a with a bolt 12 and a nut 13 so as to be adjustable in the vertical direction, that is, in the direction toward and away from the lower end of the seedling stand 6 as indicated by the arrow. On the other hand, a plurality of ribs 6a having a U-shaped cross section are formed on the seedling stand 6 so as to divide the number of planting rows, and the slide piece 7 is slid so as to close the lower side of the ribs 6a. A support plate 15a of the dynamically supported rail 15 is fixed, and the support plate 15a and the rib 6a form a hollow portion 16 having a square cross section. Furthermore, rib 6
As shown in detail in FIG. 3, a protrusion 17 that protrudes downward and has an elastic force is integrally formed on the upper surface of the lower end of a. The elastic protrusion 17 is inserted into the hollow part 16 and
The scraper 1 made of synthetic resin is pressed onto the support plate 15a forming the hollow wall.
9 is arranged, and the scraper 19 is shaped so as to be in contact with the apron 10 or to be in contact with it through a slight gap, and further has a holding part 19a that holds the tip of the apron 10. ing.

Since this embodiment has the above-described configuration, the planting rod 3 rotates so as to draw a trajectory a, and at the same time, the seedling tray 6 moves laterally, so that the pine seedlings on the seedling tray 6 are are scraped off from the notch of the apron 10 and planted in the field. At this time, as the seedling stand 6 moves laterally, the pine seedlings move laterally with their lower ends supported by the apron 10, so the seedling soil at the lower end of the pine seedlings adheres to the apron 10. The scraper 19 moves laterally together with the seedling stand 6 while aligning and slidingly contacting the apron 10.
The seedling soil is scraped away, and the seedling soil does not adhere to or accumulate on the apron 10. Further, when moving the apron 10 in the direction of the arrow along the long hole 11 by loosening the bolts 12 and nuts 13 in order to adjust the number of seedlings per plant, the scraper 19 is moved by the holding part 19a.
The scraper 19 also moves together against the pressing force of the elastic protrusion 17, and the scraper 19 is always held at a position where it aligns and slides against the apron 10.

Next, an embodiment partially modified in accordance with FIGS. 4 and 5 will be described.

In this embodiment, the elastic protrusion 17 is not formed on the rib 6a of the seedling stand 6, but on the upper part of the scraper 19.
A protruding portion 19b that protrudes upward is integrally molded to have elastic force.

As a result, the scraper 19 is inserted into the hollow portion 16 of the seedling stand 6, is pressed to the support plate 15a based on the elastic protrusion 19b, and is held on the seedling stand 6.

Note that the shapes of the elastic protrusions 17 and 19b are not limited to the above-described embodiments, and of course, other shapes may be used.

As explained above, according to the present invention, the protrusion for crimping the scraper 19 is formed integrally with the scraper 19 or the seedling stand 6, which reduces the number of parts, simplifies the structure, and Easy to assemble. Furthermore, a seedling stand 6 or a scraper 1 made of synthetic resin is provided.
Since the protrusions 17 and 19a are integrally molded on the 9, it does not rust even in an environment where muddy water is scattered, and has excellent durability. especially,
The bottom surface of the scraper 19 wears out quickly due to sliding contact with the seedling soil, so it needs to be replaced frequently, but as mentioned above, it has a simple structure and is easy to assemble, so it can be easily replaced, and in actual use. Demonstrates excellent effects in Furthermore, since the protrusions 17 and 19a have a structure in which at least both ends thereof are integrally formed with the scraper 19 or the main body of the seedling stand 6, they are not located in the part of the seedling stand 6 that is constantly exposed to vibrations. Even if this happens, the protrusion will not collapse and the scraper 19 can always be reliably held in its normal position. Also, scraper 1
9 can be easily adjusted in the direction of the arrow, so even when the apron 10 is moved and adjusted in the direction of the arrow, the gap between the scraper 19 and the apron 10 can be easily adjusted. The scraper 19 can be automatically moved in accordance with the movement adjustment of the scraper 10.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a planting section of a rice transplanter to which the present invention can be applied, Fig. 2 is a sectional view showing an embodiment of the present invention, and Fig. 3 is a perspective view of the rib portion of the seedling stand.
FIG. 4 is a sectional view showing another embodiment, and FIG. 5 is a perspective view of the scraper. 1... Rice transplanter (planting part), 2, 2a... Machine body,
6... Seedling stand, 6a... Rib, 15a... Hollow wall (support plate), 16... Hollow part, 17... Projection, 19... Scraper, 19b... Projection.

Claims (1)

[Scope of utility model registration request] a seedling stand that can reciprocate laterally with respect to the aircraft;
It is located in a hollow part formed by an apron fixed to the body at the lower end of the seedling stand and the ribs of the seedling stand, and is crimped to the wall of the hollow part. The scraper and the seedling rest are formed of synthetic resin, and a protrusion is integrally molded on the scraper or the seedling rest, and the protrusion has at least both end portions attached to the scraper or the seedling rest body. 1. A scraper support device in a seedling stand of a rice transplanter, characterized in that the scraper is integrally formed with the hollow wall, and the scraper is held in pressure on the hollow wall by the protrusion.