JPH0423925Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention is a ground that can be maintained by flattening and solidifying uneven and dilapidated grounds with simple operations, regardless of whether the surface layer of the ground is hardened or soft. Regarding maintenance tools.

(b) Prior art When various track and field events or ball games are held on a field, a part of the field may be heavily excavated due to the nature of the sport or ball game, or may become uneven or dilapidated for a short period of time or for a long time due to weathering and infiltration due to wind and rain. This becomes a major hindrance to various competitions and ball games.

For this reason, at present, a so-called sand scraping tool called a rake as shown in Figure 4 is used to scrape up loose particles that have been scattered on the ground surface, and then move and fill them into the recessed parts to improve the ground surface. However, as shown in the figure, this rake has a sand scraping mud plate B attached vertically to the tip A' of the operating handle A, so when the surface layer of the gland is hardened, it simply flattens the ground. Only the floating sand and mud that has been scattered and moved on the surface will be scraped up. Therefore, if this floating sand and mud is only inserted into the temporary depressions, it will not mix with the hardened ground surface layer and will prevent slipping during competitions and ball games. Not only is this extremely dangerous, but
In a short period of time, they will be scattered and moved again, reproducing the uneven devastation, and in the condition of the soft ground surface layer, the lower edge of the sand scraping mud plate B will easily sink into the soft sand mud, and it will become flat. This makes it extremely difficult to level the ground, and requires a separate roller to level it.No satisfactory ground maintenance tool has yet been developed.

(c) Problems to be solved by the invention The present invention has been developed in view of the above-mentioned circumstances.Whether the surface layer of the gland is hardened or soft, the present invention can solve the problem of floating sand and mud on the surface with an extremely simple operation. To provide a ground maintenance tool capable of sufficiently mixing sand and mud in the surface layer and solidifying the ground in a stable state.

(d) Technical means to solve the problem The technical means used by the present invention to achieve the above-mentioned technical problem is to attach a board to the tip of the control stick so as to be orthogonal to the axis of the control stick. On one side of the upper or lower edge of this substrate, sand scraping teeth with appropriate tooth height and tooth spacing are provided, and on the other side, a pipe material or a circular cross-sectional shape is provided. It consists of a flat carrier made by cutting a bar.

(e) Effects The technical means of the present invention has the following effects. That is, a board is attached to the tip of the operating stick so as to be perpendicular to the axis of the operating stick, and one side of the upper or lower edge of this board is covered with scraping mud with appropriate tooth height and tooth spacing. Since the tooth is attached to the other side edge, a flat support made by cutting a tube or bar with a circular cross section is attached.
By only rotating the operating rod by half a turn while gripping it, the sand scraper teeth or the flat carrier can be brought into contact with the ground surface, respectively. When the ground surface layer is hardened, the ground surface layer is scraped to an appropriate depth by sliding the scraping mud teeth while touching the ground surface, and the scraped sand and mud are mixed with the loose sand and mud on the ground surface. and are mixed.

By rotating the operating rod half a turn, the flat carrier is brought into contact with the ground surface that has been raked and softened by being mixed with floating sand and mud.

Since this flat carrier is made of a tube or bar with a circular cross section, the ground surface is a curved surface, so even if it slides on such a weakened ground surface, it will not cave in, and it will be able to maintain the required pressure. Can be solidified flat. Of course, if the ground surface is already soft, maintenance can be accomplished simply by sliding the flat carrier onto the ground.

(F) Embodiment Below, an embodiment of the present invention will be explained in detail based on the drawings. Fig. 1 is a perspective view of the present invention, and the operation stick 1 is normally operated by one or two maintenance workers. Since the rod 1 is gripped and dragged and slid on the ground, a considerable amount of mud resistance is added, so a sufficiently strong material is desired, and iron pipe material or iron bar material is generally used.

A substrate 2 is attached to the tip of the operating rod 1 by appropriate means such as welding or fitting so as to be perpendicular to the axis of the operating rod 1. Of course the substrate 2
Also, sufficient toughness is required for the operation lever 1.
In general, iron plate material is convenient from the viewpoint of mounting with the machine.

A flat carrier 3 made of iron pipe material with a circular cross-sectional shape is attached to one side edge of the upper edge 2A or lower edge 2B of the substrate 2 thus formed, for example, the upper edge 2A, by an appropriate means such as welding or fitting. In particular, when using a gland with a high degree of hardening, it is necessary to apply a sufficiently large amount of pressure when scraping the surface layer of the gland, so it is desirable to select a large amount of material such as an iron bar material.

On the other hand, on the lower edge 2B, sand scraping mud teeth 4 formed with appropriate tooth height and tooth spacing are attached by appropriate means such as welding or fitting.
Since frictional resistance with sand and mud is constantly added to the bearing, it is desirable that the bearing be made of a material such as a steel plate with excellent wear resistance. The product 5 of the present invention has such a configuration, and the manner in which the product 5 of the present invention is used is shown in FIGS. 2 and 3. Fig. 2 shows that when the degree of hardening of the ground surface G is large, the sand scraping mud teeth 4 are first slid into contact with the ground in the direction of the arrow to scrape the ground, and the ground surface G is softened by this scraping, or the ground surface G is soft from the beginning. As shown in FIG. 3, the ground plane G etc. is grounded by sliding the flat carrier 3, so that the entire weight of the product 5 of the present invention is applied to the ground plane G via the flat carrier 3, and thus the flat carrier 3 is grounded. Once the soil has been solidified, the grounds can be prepared.

(g) Effects of the invention The present invention has the above-mentioned configuration, and can be used to adjust the hardness or softness of the ground surface by simply rotating the operating stick by half a turn. The ground surface can be grounded freely and sliding movement can be achieved, and even if the ground surface has a high degree of hardening, the whole product of this invention is relatively multiplexed, so the ground surface layer can be sufficiently scraped, and the ground surface can be moved freely. Not only can it be sufficiently mixed with the sand and mud that is present, but even in its softened state, the flat carrier slides against the ground on a curved surface, so there is no risk of invagination during sliding, and the entire device of the present invention It can be said that it is a ground maintenance tool that has many features such as being able to easily perform ground maintenance by flattening and solidifying because it is pressurized by the weight of the ground.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the present invention, FIGS. 2 and 3 are usage patterns of the present invention, and FIG. 4 is a perspective view of a conventional product. Explanation of symbols, 1... Operation stick, 2... Board, 2A
...Top edge of substrate, 2B...Bottom edge of substrate, 3...Flat carrier, 4...Sand mud tooth, 5...Product of the present invention.

Claims (1)

[Scope of utility model registration request] A board is attached to the tip of the operating stick so as to be orthogonal to the axis of the operating stick, and one side edge of the upper or lower edge of this board is formed with appropriate tooth height and tooth spacing. A ground maintenance tool, characterized in that a sand scraping tooth is provided, and the other side edge is provided with a flat support made of a pipe material or a bar material with a circular cross section.