JPH0124180Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a towable ground leveler for correcting and leveling irregularities in playgrounds, etc., and for gathering soil.

The grounds of stadiums and school playgrounds tend to be rough, so they often need to be leveled and leveled, and it is also necessary to add soil to create a slight slope to improve drainage.

Conventionally, when leveling the ground of a playground, etc., a T-shaped soil leveler called a so-called dragonfly was used manually or the soil was pulled by a vehicle to scrape the soil.

This makes it relatively easy to level the ground in soft or sandy areas, but in the case of hard ground, unevenness cannot be easily leveled out simply by scratching the surface, resulting in poor working efficiency.

Therefore, the present invention aims to eliminate the above-mentioned drawbacks of the conventional products, and to provide a towing ground leveling device that improves work efficiency and has an excellent ground leveling effect.

This invention to achieve the above object consists of a main body in which a horizontally long front scraper and a rear scraper are arranged upright and parallel to each other and connected by a connecting member, and a main body that can be attached and detached from the lower ends of the front scraper and rear scraper. A sharpening blade that can be attached freely.
A ground leveling tool such as a scraping claw or a brush, a wheel rotatably mounted at an intermediate position between the front scraper plate and the rear scraper plate near the left and right ends of the main body, and a connecting member at the upper center of the main body. An operating rod whose lower end is rotatably supported, protrudes upward, and is bent and extended forward; the lower end of the operating rod is connected to a wheel support shaft of the wheel; a raking means for raking by motion; and a traction ground leveler consisting of two traction rods, one end of which is connected to the front raking plate and the other end extending forward is connected to another towing vehicle. It is.

This invention will be explained below based on embodiments shown in the drawings.

In the central longitudinal cross-sectional side view of FIG. 1 and the plan view of FIG. are connected and fixed together by a connecting member 4.

At the lower ends of the front raking plate 2 and rear raking plate 3, a ground leveling tool such as a scraping blade 5, a raking claw 6, a brush 7, etc. can be freely selected and attached.

The mounting holes 8 of these land leveling tools are elongated holes so that the inclination and mounting height can be adjusted so as to follow the ground.

A pair of wheels 9 are held by rotatable wheel support shafts 10 supported perpendicularly to the connecting member 4 between the front scraper plate 2 and the rear scraper plate 3, near both left and right ends. The wheel 9 is arranged so that its outer periphery protrudes below the ground leveling tools such as the scraping blade 5, scraping claw 6, brush 7, etc.

Reference numeral 11 denotes an operating rod, the base of which is rotatably supported in the vertical direction at the center of the connecting member 4, protrudes upward, and is extended by being bent forward.At the lower end of this operating rod 11 is a scooping arm 12. On the other hand, a rotating arm 13 is attached to the upper end of the pair of wheel support shafts 10 in the horizontal direction, and a lever lever 14 is provided that connects the tips of the respective rotating arms 13. The tip of the scooping arm 12 at the lower end of the operating rod 11 is engaged with the intermediate portion of the scooping lever 14, and the scooping arm 12, the rotating arm 13, and the scooping lever 14 constitute a scooping means.

Reference numeral 15 designates two traction rods that are connected to the front scraper plate 2 and extend forward.
6. For example, hang it on the right rear spring of a light truck, etc.

Reference numeral 17 denotes a shelf board that covers the top of the main body, on which a weight 18 can be appropriately placed as shown by the imaginary line in Fig. 1. By placing the weight 18, the ground pressure of the earth leveling tool can be reduced This is to adjust the

The proposed traction ground leveling machine with the above-mentioned configuration is used to level the ground by being towed by a suitable towing vehicle. Figures 1 and 2 show an example in which a light truck is used as the towing vehicle 16. Rod 15 on the right side (driver's seat side)
The device is hooked onto the rear spring of the light truck, and is operated by an operator in addition to the driver who rides on the bed of a light truck and holds the operating rod 11.By lowering the operating rod 11 as shown by the arrow in Figure 1, the main unit can be opened. 1 tilts forward using the wheel 9 as a fulcrum, and the scraping blade 5 attached to the front scraper plate 2 scrapes the ground, and on the other hand, if lifted upward, the rear scraper plate 3
The scratching claws 6 attached to the ground will be scratched.

By moving the operating rod 11 up and down in this manner, two types of ground leveling tools can be used selectively, and it is also possible to simply operate with only the wheels 9 in contact with the ground in the neutral position.

In addition, as shown by the imaginary line in Fig. 2, the operating lever 11
When the wheel is moved to the right or left, the scooping arm 12, scooping rod 14, and rotating arm 13 are interlocked, and the wheel support shaft 10 is rotated to swing the wheel 9 from side to side, thereby freely changing the direction of travel. I can do it.

In such a case, the driver of the towing vehicle 16 is towing the device behind the driver's side, so he or she can check the leveling status from time to time by using the rear view mirror or looking backwards. The operator and the operator communicate with each other by calling out to each other while leveling the ground.

The ground leveling tool uses the scraping blade shown in Figure 3 to scrape and level the ground, the scraping claw shown in Figure 4 loosens hard soil and large convexities, and the brush shown in Figure 5 sweeps the surface. In addition to this, various types of land leveling tools, such as those that press the soil with rolls, are used by changing them depending on the situation.

Further, since the traction rod 15 has rigidity, it can move not only forward but also backward, which is convenient as it allows the same area to be leveled over and over again.

As explained above, this device has much higher work efficiency than manual soil leveling, two types of ground leveling tools can be used in the front and rear with one device, and various types of ground leveling tools can be replaced. Therefore, it can be used in various ways depending on the situation, has a simple structure and can be manufactured at low cost, and because existing vehicles such as light trucks can be used as a towing vehicle, it is more economical than a dedicated leveling vehicle, and it is less heavy and heavy. The ground pressure can be adjusted freely by adjusting the size of the ground, and it can also be moved backward as well as forward, making it more convenient to use.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the proposed device;
The figure is a plan view, and Figures 3, 4, and 5 are perspective views showing examples of land leveling tools. Figure 3 shows a scraping blade, Figure 4 shows a scraper, and Figure 5 shows a brush. It is a diagram. 1... Main body, 2... Front scraper, 3... Rear scraper, 4...
Connecting member, 5... Sharpening blade, 6... Scratching claw, 7... Brush, 8... Mounting hole, 9... Wheel, 10... Wheel support shaft,
11...Operation rod, 15...Traction rod.

Claims (1)

[Scope of Claim for Utility Model Registration] A main body in which horizontally long front scrapers and rear scrapers arranged upright and parallel are connected by a connecting member, and detachably attached to the lower ends of the front scrapers and rear scrapers. a ground leveling tool such as a scraping blade, a scraping claw, a brush, a pair of wheels rotatably attached to intermediate positions between the front scraper plate and the rear scraper plate near the left and right ends of the main body; an operating rod whose lower end is rotatably supported on a connecting member at the upper center of the wheel, protrudes upward, and is bent and extended forward; the lower end of the operating rod is connected to a wheel support shaft of the wheel; and two traction rods, one end of which is connected to the front scraper plate and the other end of which extends forward, is connected to another tow vehicle. A traction leveling leveler characterized by comprising: