JP2595282Y2 - Concrete foundation block - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete base block for fixing a pole, which supports a lower end of the pole when installing a lamp or the like.

[0002]

2. Description of the Related Art When illuminating a lamp or the like and burying the lower end of the pole in the ground, conventionally, as shown in FIG. A square concrete foundation block 80 having an opening 81 is used, and the foundation concrete block 80 having such a structure is embedded in the ground except for an upper end portion 82 thereof. For this reason, in the conventional concrete foundation block 80, for example, point A, point B ...
In the case where the lighting 6 is installed, it is necessary to align the embedding positions of the concrete foundation blocks 80 and to accurately align the orientations thereof, so that there is a problem that the installation work is troublesome. That is, depending on which direction the side surface of the concrete foundation block 80 is buried, the upper end portion 8 like the root portion of the illuminating light 6 at the point C is determined.
This is because the direction of the second corner 821 is different from the point A or the point B, and the appearance deteriorates.

In view of the above problems, the present invention has an object to provide a concrete base block which can be installed in a good-looking manner without having to use a lamp or the like. It is another object of the present invention to provide a concrete base block in which wiring holes can be easily formed.

[0004]

In order to solve the above-mentioned problems, the present invention comprises a buried portion in the ground and an upper end located above the buried portion. In a concrete base block for pole fixing, in which a pole mounting hole that opens extends toward the bottom surface of the buried portion, wiring separated from the side of the buried portion toward the pole mounting hole through the pole mounting hole and a thin portion. A hole forming recess is formed. When pulling out the wiring,
The thin portion separating the wiring hole forming recess and the pole mounting hole can be broken to form a wiring hole by connecting them to each other, so that the wiring hole can be easily formed and the wiring can be easily drawn out from a lighting lamp or the like. .

[0005] In the present invention, rainwater flows naturally from the base of the illuminating lamp or the like to the outer peripheral side by making the upper end surface a tapered surface that slopes downward from the opening edge of the pole mounting hole toward the outer peripheral edge. It is preferable to do so.

It is preferable that the pole mounting hole has the same opening cross-sectional shape, and the opening cross-section decreases from the upper end surface toward the bottom surface of the buried portion. In this case, it is easy to position the poles in the pole mounting holes, and it is convenient to pour concrete into the gaps.

Further, the buried portion has a substantially rectangular outer shape, preferably a square outer shape, an upper end portion has a substantially circular outer shape, and the upper end portion has at least one portion with respect to the buried portion. It is desirable to form it so as to form a step.

When installing a lighting or the like using the concrete base block having such a configuration, the buried portion is buried in the ground so that the upper end is out of the surface of the ground, and the pole mounting hole is provided with the lower end of the pole of the lighting. Attach the side. In this state, the upper end protruding from the surface of the ground at the base of the lighting lamp has a circular outer peripheral shape, so that the base of the lighting lamp exhibits the same appearance even if the concrete base block is embedded in any direction. .
Therefore, it is only necessary to align the embedded positions of the concrete base blocks, and it is not necessary to align the orientations. On the other hand, since the buried portion has a rectangular outer peripheral shape, it does not rotate even if a load is applied due to the weight of the pole or wind.

In the present invention, a substantially square shape means that the outline is close to a square shape, and a substantially circular shape means that the outline is almost circular. The opening shape of the pole mounting hole is preferably circular, but may be polygonal such as hexagonal. If the gap between the pole and the pole is filled with concrete after the pole is mounted there, the shape of the opening itself does not significantly affect the appearance.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a concrete foundation block of the present embodiment. Of the six surfaces, a plan shape, a front shape, a left side shape, and a bottom shape are shown in FIG. Or (d).

In these figures, a concrete base block 1 for fixing a pole of the present embodiment has a buried portion 2 buried in the ground when installing a lighting or the like using the same, and a buried portion 2 from the ground surface at that time. And an upper end portion 3 which is in a protruding state.

Of these components, the buried portion 2 is
It has two side surfaces 21 to 24 and has a regular square outer peripheral shape. Here, the side surfaces 21 to 24 have, for example, a height of about 1
260 mm, width is about 600 mm.

On the other hand, the upper end portion 3 is
The height of the outer peripheral edge 311 is approximately 40 mm, and the side surface 31 has a circular outer peripheral shape.
Here, the diameter of the upper end portion 3 is set to the same size as the width size of the side surfaces 21 to 24, and is set to the maximum size within a range not protruding from the upper surface 26. Upper end surface 32 of upper end portion 3
, A circular pole mounting hole 4 having a diameter of about 250 mm is opened, and the upper end surface 32 is, as shown in FIG.
The pole mounting hole 4 has a tapered surface that slopes downward from the opening edge 41 to the outer peripheral edge 311. Pole mounting hole 4
The hole extends downward from the upper end face 32 while having a circular opening cross-sectional shape with a smaller hole diameter, and has an opening diameter of about 190 mm at the bottom surface 25 of the buried portion 2.

In the buried portion 2, a wiring hole forming recess 5 having an opening width of about 390 mm from the side surface 21 toward the pole mounting hole 4 is formed. , And is partitioned by a thin portion 51 corresponding to a deep portion of the concave portion 5 for forming a wiring hole. The lower surface 52 of the wiring hole forming recess 5 is a tapered surface having a downward slope.

As shown in FIG. 3, when the illuminating lamp 6 and the like are installed using the concrete base block 1 configured as described above, the buried portion 2 is buried in the ground. The part 3 is in a state of coming out of the ground surface. In this state, the circular pole lower end 61 of the lighting lamp 6 is mounted in the pole mounting hole 4, the gap is filled with concrete 7, and the lighting lamp 6 is fixed. At this time, when the wiring from the illumination lamp 6 is pulled out of the pole lower end side 61 from the portion fitted into the pole mounting hole 4, the thin portion 51 that separates the wiring hole forming recess 5 from the pole mounting hole 4 is formed. Break and connect them to form a wiring hole, and use this wiring hole.

Here, the illuminating lamp 6 is, for example,
If they are arranged in a line at point, point C,..., They need to be aligned in a straight line, and in addition, their roots need to have the same appearance. For this reason, in the conventional concrete base block, since the upper end also has a square shape, it is necessary to align the embedding position and the direction thereof, but in the concrete base block 1 of this example, Such labor is not required. That is, in this example, since the upper end portion 3 protruding from the surface of the ground has a circular outer peripheral shape, and the pole mounting hole 4 opening there is also circular, these shapes have no directionality, and are buried at the point C, for example. Even if the direction of the side surface 21 of the buried part 2 is different from that of the concrete foundation block 1 buried at other points (points A and B) as in the concrete foundation block 1, the upper end portion 3 which appears on the ground surface Will have the same appearance. Therefore, in this example, as long as the center position O for burying the concrete base block 1 is aligned, even if the orientation is not aligned, the base of the illumination lamp 6 is:
Since it has the same external appearance, installation work is not required. On the other hand, since the outer periphery of the buried portion 2 is a square,
Even if a load is applied by the weight of the illumination lamp 6 or the wind, it does not rotate. Further, since each of the side surfaces 21 to 24 receives the earth pressure with a large area, the stability is good. When the gap between the pole mounting hole 4 and the pole lower end side 61 is completely filled with the concrete 7, the above-mentioned effect can be obtained even if the pole is not circular.

In this embodiment, since the upper end surface 32 of the concrete base block 1 has a downwardly tapered surface, rainwater or the like flows toward the outer peripheral side, and the rainwater accumulates at the base of the illumination lamp 6. Nothing.

Further, when the circular pole mounting hole 4 is narrowed downward, simply inserting the pole lower end 61 into the pole mounting hole 4 causes the lower end edge to be formed at a position corresponding to the outer diameter. Since the abutment with the peripheral surface 42 is achieved, the fitting depth of the lower pole side 61 can be easily adjusted, and the lower pole side 61 is automatically fixed to the center of the pole mounting hole 4. In addition, a gap sufficient for pouring the concrete 7 can always be secured between the pole mounting hole 4 and the lower pole side 61, and the poured concrete can easily spread around the lower pole side 61.

The concrete base block 1 of this embodiment can be used not only for installation of the illuminating lamp 6 but also for installation of a column or the like of an outer enclosure, and there is no limitation on the type of pole. In addition, the size of the concrete base block 1, the size of the pole mounting hole 4, the size of the wiring hole forming recess 5, and the like are properties to be designed according to the size and shape of the poles to be installed. , Without limitation. For example, the height of the buried portion 2 is 1060 m and its width is 400 m
m, the upper surface opening diameter of the pole mounting hole 4 can be set to 225 mm, the lower surface opening diameter can be set to 165 mm, and the opening width of the wiring hole forming recess 5 can be set to 300 mm. In addition, buried part 2
The shape is square for ease of molding. However, as long as the shape is substantially square, for example, a shape having a rounded corner may be used, and any shape that does not easily rotate may be used. Further, the shape of the upper end portion 3 may be any shape as long as it has a substantially circular shape, for example, a dodecagon or a twenty-four-sided shape, since the contour is close to a circle, and the shape directionality is not a concern. .

[0021]

As described above, in the concrete foundation block according to the present invention, the buried portion in the ground has a substantially rectangular outer peripheral shape, and at least one part is formed above the buried portion so as to form a step. Since the upper end formed from the surface of the ground has a substantially circular outer peripheral shape, the upper end has the same appearance at the base of a lighting lamp or the like, regardless of which direction the concrete base block is embedded. Therefore, when burying a concrete base block, it is only necessary to align the embedding positions, and it is not necessary to align the orientation, so that the installation work is not troublesome. Even in this case, since the embedded portion is rectangular, it does not rotate even when a load is applied.

If the upper end surface is a tapered surface with a downward slope, rainwater flows from the base of the lamp to the outer peripheral side.
Does not accumulate there.

When the pole mounting hole is narrowed downward, simply insert the lower end of the pole into the pole mounting hole.
The pole can be positioned with the pole mounting hole. Also, it is convenient to pour the concrete into the gap between the pole mounting hole and the pole, and the poured concrete can easily spread around the pole.

In the case where the recesses for forming the wiring holes are formed from the side surfaces of the buried portion toward the pole mounting holes, the wiring holes can be easily formed only by connecting them, and the wiring can be drawn out from a lighting lamp or the like. Easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a concrete foundation block according to an embodiment of the present invention.

2A is a plan view of the concrete foundation block shown in FIG. 1, FIG. 2B is a front view thereof, FIG. 2C is a left side view showing a left half thereof cut away, and FIG. ) Is its bottom view.

FIG. 3 is an explanatory diagram showing a state where an illuminating lamp is installed using the concrete base block shown in FIG. 1;

FIG. 4 is an explanatory view showing a state where an illumination lamp is installed using a conventional concrete base block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Concrete base block 2 ... Embedded part 3 ... Upper end part 4 ... Pole mounting hole 5 ... Wiring hole forming recessed part 21-24 ... Side surface of embedded part 31 ... Side surface of upper end portion 32 Upper end surface 41 Opening edge of pole mounting hole 51 Thin portion

Claims (4)

(57) [Scope of request for utility model registration] 1. A pole having a buried part in the ground and an upper end located above the ground, and a pole mounting hole that opens at a central position in an upper end face of the upper end and extends toward a bottom surface of the buried part. In the concrete base block for fixing, from the side surface of the buried portion toward the pole mounting hole,
A concrete base block, wherein a recess for forming a wiring hole is formed which is separated from the pole mounting hole by a thin portion. 2. The concrete base block according to claim 1, wherein the upper end surface is a tapered surface that slopes downward from an opening edge of the pole mounting hole toward an outer peripheral edge. 3. The concrete base block according to claim 1, wherein the upper end has a substantially circular outer peripheral shape. 4. The method according to claim 1, wherein
The buried portion has a substantially rectangular outer peripheral shape, the upper end portion has a substantially circular outer peripheral shape, and the upper end portion is formed so as to form a step at least at one portion with respect to the buried portion. A foundation block made of concrete, characterized in that: