JPS603161Y2 - iron casing - Google Patents

Description

[Detailed description of the invention] This invention relates to an iron source made by forming a recessed part on the surface of a cover material that is freely openable and closable on a receiving frame, providing small protrusions inside, and filling it with colored concrete. .

For iron sources such as manholes and fire hydrant casings that are buried underground and have plugs, valves, etc. stored inside, with the surface facing the traffic road surface, the installation location should be clearly marked so that it can be used in emergencies, inspections, etc. We must provide accommodations.

In particular, in the case of a fire hydrant case, since it is used immediately in the event of a fire, it is necessary to prevent vehicles from parking on top or in the vicinity.

Conventional iron source location indicators use paint on the surface of the receiving frame or lid, which peels off due to wind and rain and becomes unclear.

In addition, there are cases where stakes are driven in to indicate the location, but they may get in the way or be damaged, and moreover, they are not noticeable.

This proposal was devised in view of the above, and the illustrated embodiment will be described below. Reference numeral 1 is a receiving frame that is buried underground and fixed so that its upper surface is flush with the road surface. The material 2 is provided so that it can be opened and closed.

According to the embodiment shown in the drawings, a support rod 3 having a head pivoted thereon is vertically disposed on one side of the lid member 2, and the support rod 3 is attached to a plate member 4 on the inner surface of the receiving frame 1.
through hole 5.

Therefore, the lid member 2 opens and closes the receiving frame 1 by rotating or pivoting about the support rod 3 as a fulcrum.

A shallow recessed portion 6 is formed on the upper surface of the lid member 2, and a large number of small protrusions 7 are provided inside.

According to the embodiment shown in FIGS. 1 and 2, the recessed portion 6 is annular, each small protrusion 7 stands upright from the bottom surface 8 of the recessed portion 6, and the upper end surface 9 is at the same height as the upper surface of the recessed portion 6. be.

Then, resin concrete 10 is placed inside the recessed portion 6.
Fill and harden the upper end surface 9 of the small protrusion 7 with concrete 1
Face the surface of 0.

The resin concrete 10 is colored in yellow, red, or other bright colors.

Therefore, if the above-mentioned iron source is installed underground and the top side faces the road surface, the color of the resin concrete will conflict with the black of the central part of the lid material and the receiving frame, making it difficult to clearly indicate the installation location. I can do it.

Since there are a large number of small protrusions inside the recessed part, the contact area between the cast iron, which is the material of the lid material, and the resin concrete increases, and the joint strength can be increased.

Furthermore, since the upper end surfaces of the small protrusions face the surface of the resin concrete, not only can wear of the resin concrete be prevented, but also vehicles and pedestrians resting on the upper surface of the concrete can be prevented from slipping.

In the embodiment shown in FIG. 3, a recessed portion 6 is formed on the surface of the lid member 2, except for the peripheral edge and the central symbol display portion, etc., and a large number of small protrusions 7 are made to stand upright inside. The depressed portion 6 is filled with resin concrete 10 and hardened.

Therefore, if this iron source is installed on the ground surface, it will be very noticeable because there are many colored parts.

It can also be applied to sidewalks made of colorful bricks, paving stones, etc., and is a part of the conventional idea of black iron sources.

As is clear from the above, according to the present invention, a recess is formed on the entire surface or a part of the cover material, small protrusions are provided, and the recess is filled with colored resin concrete and hardened. The location display is extremely clear, allowing you to find its location even from a distance.

Therefore, parking on or near the lid can be prevented as much as possible, which is effective when an emergency situation occurs and the lid must be opened.

In addition, the bonding strength of the resin concrete is high due to the large number of small protrusions, so there is no chance of chipping or cracking, and the upper end of the small protrusions prevents surface abrasion of the resin concrete, making it suitable for long-term use. can be provided.

Since the resin concrete surface has an anti-slip effect due to the upper end surfaces of the small protrusions, it can be installed even on roadways and sidewalks where other vehicles are heavily trafficked.

The drawing shows the iron source as a circular manhole, but
The same method can be applied to a rectangular fire hydrant case and other iron sources.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view showing an embodiment of the present invention;
FIG. 2 is a longitudinal side view of the same as above, and FIG. 3 is a longitudinal side view of another embodiment of the present invention. 1... Receiving frame, 2... Lid material, 6...
・・・Recessed part, 7...Small projection, 10...Medium concrete.

Claims (1)

[Scope of utility model registration request] Consists of a receiving frame and a lid attached to the receiving frame so that it can be opened and closed,
A shallow recess is formed on the upper surface of the lid, and a large number of small protrusions are made to stand upright from the lower surface of the recess, the upper end surface of each small protrusion is placed in the same position as the upper surface of the recess, and This iron source is made by filling resin concrete and letting it harden so that the upper end of the small protrusion faces the surface of the concrete.