JPS6158350B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crawler, and an object thereof is to be able to run smoothly on hard ground with less unpleasant vibrations, and to run well on soft ground while obtaining sufficient propulsive force. Moreover, it is intended to simplify the structure so that it can be used satisfactorily for a long period of time without damage.

Embodiments of the present invention will be described below based on illustrative drawings.

The illustration shows a crawler installed in an agricultural machine such as a combine harvester, and includes a front drive sprocket 1, idle wheels 2 arranged in parallel at appropriate intervals in the longitudinal direction, and an endless band 3 made of resin that can be elastically deformed. is wound, hard core materials 4 are buried inside the endless band 3 at appropriate intervals in the longitudinal direction, sprocket engagement holes 5 are formed between adjacent core materials 4, and then,
The endless band 3 is configured to be driven and rotated.

Elastic grounding bodies 6 are provided protrudingly on the outer circumferential surface of the endless band 3 in a state corresponding to the core material 4 and not located on both lateral sides in the width direction, and at least every other grounding body 6 is provided. A hard mud scraping body 7 is provided with a pair of mud scraping parts 7a, 7a that act on both lateral sides of objects (every fourth thing in the embodiment) and a notch 7b for engaging the grounding body. It is removably attached to the endless portions located on both lateral sides of the grounding body 6 in a state in which it is fixed to the hard core material 4 by ports, and then when the hard mud scraping body 7 is removed, elastic grounding is achieved. The structure is such that vibrations are suppressed by the elastic buffering effect of the body 6, and the elastic body 6 with a small width bites into the mud so that it can move well on hard ground while gaining propulsive force. If the hard mud scraping body 7 is attached, other mud that has gotten into between the pair of mud scraping parts 7a, 7a adjacent to each other in the longitudinal direction of the endless belt, which are located at a large distance in the longitudinal direction of the endless belt, can be removed. The mud scraping section 7a is configured to obtain propulsion force by scraping mud parts that are difficult to shear, so that it can move smoothly over soft ground.

To construct the hard mud scraper 7, a plate material in which a notch 7b for engaging the grounding body is formed is bent into a U-shape, and a narrow plate-shaped mud scraper 7a is formed in the longitudinal direction of the endless strip. A pair of endless bands are formed in the longitudinal direction.

5 to 9 illustrate examples of other configurations of the hard mud scraping body 7. In the one shown in FIG. 5, a pair of front and rear plates each having mud scraping parts 7a, a pair of left and right plates 8 bent into a U-shape;
8, and FIG. 6 shows a pair of left and right frames holding mud-scraping parts 7a, 7a connected by a pair of front and rear rod-shaped bodies 9, 9. Also, the seventh
The figure shows that, as described in the above embodiment, the plate body is bent, and the grounding body 6 is connected from the edge of the notch 7b.
Tongue pieces 10, 10 located at the front and rear of the notch portion 7b are erected to prevent the mouth edge of the notch portion 7b from coming into contact with the grounding body 6 and damaging the grounding body 6, Fig. 8 shows a cylindrical body 1 for the same purpose as Fig. 7.
Further, in FIG. 9, a lid body 12 is integrally formed at the end of the cylindrical body 11 shown in FIG.

The present invention may be implemented using other configurations of the endless band 3, such as one in which rigid link plates are connected in a bendable manner.

Further, the crawler of the present invention may be installed in agricultural machinery such as a combine harvester.

In addition, in the embodiment, the mud scraping portion 7a is configured in the shape of a narrow plate in the longitudinal direction of the endless band, so that the lower edge of the mud scraper can easily bite into the hard board when moving on soft ground, thereby further increasing the propulsion force. However, the shape of the mud-scraping portion 7a may be any structure.

In summary, the crawler according to the present invention has elastic grounding bodies 6 protrudingly provided on the outer circumferential surface of the endless band 3 at a predetermined interval in the longitudinal direction and not located at both lateral ends in the width direction. A hard mud scraping body 7 is provided with a pair of mud scraping parts 7a, 7a that act on both lateral sides of at least every other grounding body 6, and is also provided with a notch part 7b for engaging the grounding body.
are detachably attached to endless band portions located on both lateral sides of the grounding body 6.

That is, if the hard mud scraper 7 is removed,
The elastic cushioning effect of the elastic grounding body 6 allows movement even on hard ground with less unpleasant vibrations, and the small width of the elastic grounding body 6, which can easily dig into hard ground, provides sufficient propulsion due to the ability to dig into the ground. Since it can move while gaining strength, it can move smoothly on hard ground.Moreover, if the hard mud scraper 7 is attached, a large distance in the longitudinal direction of the endless belt 3 can be removed. The mud portions that enter between the pair of mud scraping portions 7a, 7a that are adjacent to each other in the longitudinal direction of the endless band are sheared off from other mud portions, compared to being finely divided in the longitudinal direction of the endless band. Since the pair of mud scraping parts 7a, 7a scrape mud parts that are difficult to shear from other mud parts, it is possible to move with sufficient propulsive force even on soft ground. This allows for good movement.

Furthermore, a notch 7b for engaging the grounding body is formed in the hard mud scraping body 7 provided with the pair of mud scraping parts 7a, 7a, and the hard mud scraping body 7 configured in this manner
is removably attached to the endless band portions located on both sides of the grounding body 6. In other words, the hard mud scraping body 7, which is integrally constructed, Since the side parts are attached to the endless band 3 in a desired state, the mounting structure of each of the two side parts of the hard mud scraper 7 to the endless band 3 is simplified, and the overall structure is simplified. While trying to improve the
It has the advantage that it can be firmly attached to the wall and can be used satisfactorily for a long period of time. More specifically, as another means for achieving the object of the present invention, a pair of hard mud scraping body portions each having a pair of mud scraping portions 7a, 7a are located on both sides of the grounding body 6. A method of attaching each part to the endless band parts separately may be considered, but in this case, the structure for firmly attaching each of the pair of separately formed hard mud scraper parts to the endless band 3 would be quite expensive. However, according to the present invention, even if the structure for attaching each side of the integrally formed hard mud scraper 7 to the endless band 3 is simplified, the overall structure can be firmly attached.

In the end, a crawler with great practical advantages as a whole was obtained.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the crawler according to the present invention, FIG. 1 is a side view of the crawler, FIG. 2 is a longitudinal side view showing the mounting part of the hard mud scraper, and FIG. 3 is a longitudinal cross-section showing the same part. FIG. 4 is a front view, FIG. 4 is a bottom view showing the same part, and FIGS. 5 to 9 are perspective views of other embodiments. 3...Endless band, 4...Hard core material, 6...Elastic grounding body, 7...Hard mud scraping body, 7a...Mud scraping part,
7b...Notch for engaging the grounding body.

Claims (1)

[Scope of Claims] 1. Elastic grounding bodies 6 are provided protrudingly on the outer peripheral surface of the endless band 3 at a predetermined interval in the longitudinal direction and not located at both lateral ends in the width direction. A hard mud scraping body 7 is provided with a pair of mud scraping parts 7a, 7a that act on both lateral sides of at least every other body 6, and a notch part 7b for engaging the ground body. 6. A crawler characterized in that the crawler is detachably attached to the endless band portions located on both sides of the crawler. 2. The crawler according to claim 1, wherein the mud scraper 7 is bolted to a hard core material 4 embedded in an endless band 3 made of resin. 3. The crawler according to claim 1 or 2, wherein the mud scraping portion 7a is formed into a narrow plate shape in the longitudinal direction of the endless band.