JPH05321216A - Recessed type fixture for structure - Google Patents

Abstract

PURPOSE:To shorten the time for burying a fixture and prevent the concrete of the fixture from being exposed at the road surface. CONSTITUTION:A recessed type fixture 1 consisting of a concrete block 3 and a metal cylinder 2 is fabricated in advance and embedded in the ground upon inserting at the site the concrete block 3 in a hole 12 excavated in the ground in the condition that the metal cylinder 2 faces up. The oversurface 10 of this block inserted 5 is positioned lower than the ground surface at the site and covered with soil etc., and over it a pavement is applied with tiles 14, etc., in the same manner as the other areas of the road surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded fixture for structures such as car stops, lighting poles, waste bins, ashtrays and the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a fixture of this type has a large hole (01) on the ground at the burial site.
Then, a metal cylinder (02) for inserting and supporting the structure is positioned at approximately the center of the hole (01), and then the metal cylinder (02) and the inner wall of the hole (01) It was completed by pouring concrete (03) in the space between. In the metal tube (02) completely fixed by hardening of the concrete (03), as shown in FIG. 8, the lower part (0) of the structure (04) to be installed is
5) is inserted.

[0003]

As described above, in the conventional fixture, since the concrete (03) is placed at the burying site, the burying work time is increased due to the filling and hardening of the concrete (03). Is unavoidable. Further, since the upper surface of the concrete (03) reaches the road surface and is exposed, it causes a feeling of strangeness with the road surface already paved with the tile (06) or the like.

The present invention has been made in view of these problems, and an object thereof is to shorten the time for burying the fixture and prevent the concrete of the fixture from being exposed on the road surface. There is.

[0005]

In order to achieve the above object, an embedded fixture of the present invention comprises a metal cylinder for inserting and supporting a structure, and a concrete block surrounding a lower portion of the metal cylinder. This is a buried type fixture, and this concrete block has already been cast-molded before it is buried in the site, and in this case, the metal tube is placed so that the upper surface of the concrete block is located below the ground of the site. Is characterized in that the upper part of is projected by a predetermined height above the upper surface of the concrete block.

[0006]

[Operation] A pre-built buried fixture consisting of a concrete block and a metal cylinder is used by inserting the concrete block into the hole excavated in the ground at the burial site, with the metal cylinder facing upward. , Buried.
The top surface of the inserted concrete block is located lower than the ground at the burial site. The upper surface of the concrete block is covered with soil or the like, and then paved with tiles or the like like other road surfaces.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The embedded fixture (1) shown in FIG. 1 is composed of one metal cylinder (2) and a concrete block (3) surrounding the lower part thereof. A suspension hole (5) for engaging a suspension hook (4) (see FIG. 2) is formed in the upper part of the metal cylinder (2) protruding from the concrete block (3), A hole (6) for inserting an electric wire is bored in the lower part thereof as necessary.

As shown in FIG. 2, the embedded fixture (1) has a metal tube (2) arranged in the center of a box (9) consisting of a side plate (7) and a bottom plate (8). It is manufactured by pouring concrete in the space between the cylinder (2) and the inner wall of the box (9). In this case, the upper part of the metal cylinder (2) is more than the upper surface (10) of the concrete block (3) so that the upper surface (10) of the concrete block (3) is located below the ground at the burial site. Only the height is projected. A flange (11) is provided at the lower end of the metal tube (2) in order to complete the connection between the metal tube (2) and the concrete block (3). The embedded fixture (1) is pulled out from the box (9) by engaging a hanging hook (4) in the hanging hole (5) and lifting it with a crane or the like.

3 and 4 show the step of burying the embedded type fixture (1). First, gravel (13) or the like is spread over the bottom of the hole (12) excavated for burying the embedded fixture (1). The thickness of the gravel (13) is set so that the upper end of the metal tube (2) substantially matches the road surface paved with tiles (14) or the like. Next, as described above, the hook (4) is engaged with the hanging hole (5) of the metal cylinder (2) to suspend the embedded fixture (1) with a crane or the like, and the hole (12) in the ground. ) Gradually insert into After the insertion, if necessary, the upper surface (10) of the concrete block (3) is covered with soil (15), and then the upper surface (10) is paved with tiles (14) and the like like the surrounding road surface.
This completes the burying of the embedded fixture (1).

As shown in FIG. 5, the insertion fixing portion (17) of the structure (16) to be fixed is inserted into the metal cylinder (2) of the buried type fixing tool (1). The insertion fixing portion (17) is a tubular body, and a metal rod (18) is horizontally welded to the inner wall of the lower end thereof. Metal tube (2)
The mortar (19) has been previously filled therein, and when the mortar (19) hardens after the insertion fixing part (17) is inserted, the structure (16) is completely fixed to the implantable fixture (1). .. In this case the horizontal bar (18) is
Achieved 6) the reliable retention prevention. FIG. 6 shows a state where the fixing of the structure (16) is completed.

The structure of the embedded fixture of the present invention is not limited to the above embodiment. For example, in order to connect the structure and the metal cylinder, a bolt or a pin that horizontally penetrates the both can be used. In this case, it is convenient to use the hanging hole of the metal cylinder as an insertion hole for inserting a bolt or a pin.

Further, it is possible to provide a small projection on the outer wall of the insertion and fixing portion of the structure and to provide a recess or hole conforming to the shape of the small projection on the inner wall of the metal cylinder. According to this configuration, the small protrusion and the recess or hole are tightly fitted to each other based on the elastic deformation of both when the insertion fixing portion is press-fitted into the metal cylinder, so that the relatively simple work is practical. A sufficient retaining effect can be produced.

The above description is directed to an embedded fixture (fixed type) for fixing a structure to a metal cylinder. However, the embedded fixture based on the technical idea of the present invention can of course be applied to a structure that is easily removable or a structure that does not have a retaining means (movable type).

Further, a metal cylinder having an arbitrary shape such as a cylindrical shape or a prismatic shape can be used according to the purpose of use. Similarly, the number of metal cylinders erected on one concrete block is not limited to one, and a plurality of metal cylinders may be provided.

[0015]

According to the buried type fixture of the present invention, since the concrete block surrounding the metal cylinder is cast in advance, the casting of concrete at the burial site is omitted and the working time is greatly increased. It can be shortened. Since the top surface of the concrete block is lower than the ground,
It can be paved with tiles as well as other road surfaces.

[0016]

[Brief description of drawings]

FIG. 1 is a perspective view of an embedded fixture of the present invention.

FIG. 2 is a sectional view of the above-mentioned embedded fixture.

FIG. 3 is a cross-sectional view showing a state in which the above-mentioned embedded fixture is inserted into a hole in the ground.

FIG. 4 is a cross-sectional view showing a state where burying of the above-mentioned buried type fixture is completed.

FIG. 5 is a cross-sectional view showing a step of inserting and fixing a structure in the above-mentioned embedded fixture.

FIG. 6 is a perspective view showing a state in which the structure has been inserted and fixed to the embedded fixture of the same.

FIG. 7 is a perspective view showing a manufacturing process of a conventional fixture.

FIG. 8 is a perspective view showing a process of inserting and fixing a structure in a conventional fixture.

[Explanation of symbols]

(1) Embedded type fixture (2)
Metal tube (3) Concrete block (4)
Hook (5) Hanging hole (6)
Hole for electric wire (7) Side plate (8)
Bottom plate (9) Box body (10)
Top (11) Flange (12)
Hole in the ground (13) Gravel (14)
Tile (15) Soil (16)
Structure (17) Insertion fixing part (18)
Bar (19) Mortar

Claims (10)

[Claims] 1. A metal cylinder for inserting and supporting a structure,
A buried type fixture consisting of a concrete block surrounding the lower part of the metal cylinder, the concrete block being already cast before being buried at the site, in which case the upper surface of the concrete block is An embedded fixture for a structure, wherein an upper part of a metal cylinder is projected a predetermined height above an upper surface of a concrete block so as to be located below the ground. 2. A suspending hole for engaging a suspending hook is formed in an upper end portion of the metal cylinder.
The embedded fixture described in. 3. The embedded fixture according to claim 1, wherein a hole for inserting an electric wire is bored in a peripheral wall of the metal cylinder projecting from the concrete block. 4. The embedded fixture according to claim 1, wherein a coupling portion for coupling the inserted structure is formed at an upper end portion of the metal cylinder. 5. The embedded fixture according to claim 4, wherein the connecting portion is a hole for inserting a bolt or a pin that engages with the structure. 6. The embedded fixture according to claim 4, wherein the connecting portion is a hole or a recess that engages with the protrusion of the structure. 7. The lower part of the structure to be inserted into the metal tube is
4. The embedded fixture according to any one of claims 1 to 3, wherein a bar member for preventing pulling out is fixed in a substantially horizontal direction. 8. The embedded fixture according to claim 1, wherein a plurality of metal cylinders are erected on one concrete block. 9. The embedded fixture according to claim 1, wherein the metal cylinder has a cylindrical shape. 10. The embedded fixture according to claim 1, wherein the metal cylinder has a prismatic shape.