JPS6040696Y2 - Falling lid type U-shaped groove for road drainage - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a U-shaped groove used for drainage ditches on road surfaces, and particularly relates to a drop-top type U-shaped groove that can be used for reinforced concrete.

Conventionally, so-called U-shaped ditches, which are buried in drainage ditches on road surfaces, are made by pre-molding the size and shape of reinforced concrete into one piece, and embed a number of them in the ditch while connecting them, and then a drop cover is placed at the end to carry out construction. The most common method is to complete the process.

Therefore, the U-shaped groove main body and the drop lid do not come into close contact, and when a person walks on it or a bicycle or car passes over it, it rattles, which not only causes the drop lid to wear out, but also causes noise. There were some flaws, such as:

The present invention was devised in order to eliminate the above-mentioned defects, and it is possible to bury a U-shaped groove body equipped with a U-shaped drainage groove in a drainage ditch on the road surface and place a drop lid on it. In a U-shaped groove made of reinforced concrete, an inclined groove is provided on the falling lid placement surface of the U-shaped groove body, and by filling the inclined groove with conditioning sand, wear and noise caused by rattling of the falling lid can be prevented. The purpose of the present invention is to provide a drop-cover type U-shaped groove for road surface drainage that can be drained.

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

FIG. 1 is a perspective view showing the overall outline of the falling lid type U-shaped groove for road drainage according to the present invention, and 1 is the main body of the U-shaped groove.

The U-shaped groove main body 1 is a so-called conventionally known U-shaped groove made of reinforced concrete, and 2 is a drainage groove thereof.

3 is an inner wall of the side wall of the U-shaped groove main body 1, and 4 is a mounting surface on which a drop lid 7 formed by forming the inner wall 3 into an L-shape is placed.

5 is an inclined groove provided on the mounting surface 4, and 6 is adjusted sand packed into the inclined groove 5.

Since the inclined grooves 5 and the adjusting sand 6 are the main parts of the present invention, their relationship will be explained in detail with reference to FIG.

FIG. 2 is a partially enlarged sectional view of the U-shaped groove main body 1 and the drop M7.

First, an inclined groove 5 is provided in the mounting surface 4 for the drop lid 7 of the conventional U-shaped groove main body 1.

This inclined groove 5 is a notch-shaped groove provided along the inner wall 3 of the mounting surface 4 at about two-thirds thereof.

Next, adjusted sand 6 is stuffed into the notch of this inclined groove 5.

In this case, it is raised slightly higher than the mounting surface 4 to prevent direct friction between the drop M7 and the mounting surface 4.

Note that the adjusted sand 6 uses general sand, but this is
Since this is to prevent rattling, any other material may be used as long as it is mortar, synthetic resin material such as asphalt, or any other material that can serve as a cushion.

Furthermore, by providing a notch 8 on the drop lid 7,
This ensures good contact between the corners of both sides of the mounting surface 4 and the drop lid 7.

In this way, by placing the drop lid 7 on the U-shaped groove main body 1, although a conventional gap 9 is created in the upper part of the inner wall 3, the lower part is completely in contact with the mounting surface 4. Since there is some space between them, it is possible to prevent the drop lid 7 from rattling, which conventionally occurs.

FIG. 3 is a sectional view showing a drop-lid type U-shaped groove according to a conventionally known technique.

In Figure A, a notch 8 is provided in the drop lid 7, and a U-shaped groove main body 1 is provided.
This is a U-shaped groove with an inclined surface provided on the mounting surface 4, and the U-shaped groove shown in FIG.

In either case, a gap 9 is created between the drop lid 7 and the inner wall 3, which constantly causes rattling due to vibrations, etc., which not only causes wear of the drop lid 7 but also causes noise. There is.

Since the present invention is structured as described above, the drop lid can be brought into perfect contact with the U-shaped groove, and the wear and noise of the drop lid due to rattling that conventionally occur can be prevented. Not only that, the processing process for U-shaped grooves is no different from conventional construction methods, and the construction is extremely simple and can be done at low cost, so it has excellent effects not only in terms of safety but also in terms of practicality and economy. A drop-lid U-shaped groove can be provided.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the overall outline of the drop-cover type U-shaped groove for road drainage of the present invention, Fig. 2 is a partially enlarged cross-sectional view showing the main part, and Fig. 3 is a conventional drop-cover type U-shaped groove for road drainage. It is a sectional view showing a lid type U-shaped groove. 1... U-shaped groove body, 2... Drainage groove, 3
, 3... Inner wall, 4, 4... Placement surface,
5, 5... Slanted groove, 6.6... Adjusted sand, 7... Fallen lid, 8... Notch, 9.9
・・・・・・Gap area.

Claims (1)

[Scope of utility model registration request] In a reinforced concrete U-shaped groove in which a U-shaped groove body equipped with a U-shaped drainage groove is buried in a drainage ditch on the road surface and a fall cover is placed thereon, the fall cover mounting surface of the U-shaped groove body is A drop-cover type U-shaped groove for road surface drainage characterized by providing an inclined groove and filling the inclined groove with adjusted sand.