JP2596681Y2 - End cover - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end cover used for pulling down a conduit, and more particularly to an end cover used in a portion provided with a heat insulating material.

[0002]

BACKGROUND OF THE INVENTION FIGS. 7 to 9 show general end covers used for pulling down a conduit installed on a slab into which a heat insulating material has been driven, to a ceiling or the like on a lower floor. Here, FIG. 7 is a perspective view of the end cover, and FIG.
Is a cross-sectional view of the end cover, and FIG. 9 is a cross-sectional view showing a use state of the end cover.

In FIGS. 7 to 9, reference numeral 13 denotes an end cover body,
14 is a connector attached to the end cover body 13,
Reference numeral 15 denotes an edge portion, 16 denotes a nail hole, and a similar nail hole is provided on the opposite side. Reference numeral 17 denotes a conduit connected to the connector 14, and reference numeral 18 denotes a mold. Temporarily attaching the end cover to the mold 18 is performed by nailing using a nail hole 16.

[0004] 19 is a heat insulating material laid on the formwork 18. By the way, when the end cover is temporarily attached to the formwork 18, as shown in FIG. 9, a portion corresponding to the size and shape of the end cover of the heat insulating material 19 and a portion indicated by A and B in FIG. For this reason, it has to be cut off in advance, and the work is troublesome, and the heat insulating material is wasteful.

[0005]

DISCLOSURE OF THE INVENTION A first object of the present invention is to provide an end cover which reduces waste of heat insulating material. A second object of the present invention is to provide an end cover that can perform work efficiently.

An object of the present invention is to provide an end cover buried in a slab provided with a heat insulating material, and a projecting piece projecting toward the heat insulating material is formed at an opening side of the end cover. This is achieved by an end cover characterized by: It is preferable that a blade for easily cutting the heat insulating material is provided at the end of the protruding piece of the end cover.

[0007] If the length of the protruding piece is set to be substantially the same as or slightly larger than the thickness of the heat insulating material provided with respect to the mold, the operation of removing the heat insulating material is significantly easier. Become. Furthermore, if a heat insulating material is provided on the surface on the side opposite to the opening side of the end cover or on the surface on the opening side, heat is also blocked at the part where the end cover is installed, so that the heat insulating effect is improved. Can be.

In the end cover constructed as described above, the end cover is placed at a predetermined position on the heat insulating material laid on the mold, and when a force is applied thereto, the projecting piece enters the heat insulating material, Since the heat insulating material is cut by the protruding pieces, particularly the blade at the tip, and the end cover is fixed to the heat insulating material, the temporary attachment of the end cover can be performed very easily, and at the same time, the work of cutting out the heat insulating material in advance can be omitted. Therefore, labor saving of work can be achieved.

Then, it is sufficient to remove only the heat insulating material at the portion cut by the protruding pieces, and it is not necessary to cut out the heat insulating material excessively, so that the waste of the heat insulating material is reduced accordingly.
Also, if the length of the protruding piece provided on the end cover is slightly larger than the thickness of the heat insulating material laid on the formwork, the tip of the protruding piece becomes insulated when the end cover is provided. Since it protrudes from the surface of the material, it is easy to determine the installation position of the end cover, and the workability is improved.

[0010]

1 to 6 show an embodiment of an end cover according to the present invention. FIG. 1 is a perspective view of the end cover, FIG. 2 is a sectional view of the end cover, and FIG. FIG. 4 is a cross-sectional view in a state where concrete is poured, FIG. 5 is a cross-sectional view in a state where a part of a heat insulating material is removed, and FIG. 6 is a cross-sectional view illustrating a connection state of a conduit. FIG.

In each of the drawings, reference numeral 1 denotes an end cover main body, and 2 denotes a connector. The surface of the end cover main body 1 is covered with a heat insulating material 3 shown by a virtual line in FIG. The end cover is also provided with high heat insulation. Reference numeral 4 denotes an edge formed around the end cover main body 1, and reference numeral 5 denotes an annular tongue piece standing upright from the back surface of the edge part 4. Is formed.

The length d of the annular tongue 5 is set to be slightly larger than the thickness of a heat insulating material described later.
That is, the lower end of the annular tongue piece 5 slightly protrudes from the lower surface of the heat insulating material when the end cover is installed on the heat insulating material described later, as shown in FIG. Reference numeral 7 denotes a heat insulating material on which an end cover is installed. The thickness t of the heat insulating material 7 is usually about 25 mm.

Reference numeral 8 denotes a mold on which the heat insulating material 7 is provided, 9 and 1
Reference numeral 0 denotes a conduit through which electric wires and telephone lines are inserted, and is connected via the connector 2 and the joint adapter 11. 12
Is cast concrete. Hereinafter, the operation using the end cover of the present invention will be described. First, form 8
The end cover is placed at a predetermined position of the heat insulating material 7 laid on the end cover, and the annular tongue piece 5 of the end cover is pushed into the heat insulating material 7 by applying a force from above, and the end cover is attached as shown in FIG.

Since the blade 6 is provided at the tip of the annular tongue 5, the annular tongue 5 advances while cutting the heat insulating material 7 until the edge 4 contacts the surface of the heat insulating material 7. The mounting work of the end cover can be performed very easily. Further, since it is not necessary to cut out the heat insulating material 7 in advance as in the related art, the operation is simplified. Further, since the amount of the heat insulating material 7 to be removed is also a minimum necessary amount, it is not necessary to cut off the heat insulating material as in the conventional method, and waste of the heat insulating material is small.

After the end cover is attached to the heat insulating material 7, the electric conduit 9 is connected to the connector 2 of the end cover, and then concrete 12 is poured as shown in FIG.
When the formwork 8 is removed after the concrete 12 has been cured, the annular tongue piece 5 (blade portion 6) of the end cover slightly protrudes from the lower surface of the slab. The portion of the heat insulating material cut by the annular tongue piece 5 is removed.

Finally, as shown in FIG. 6, the required conduit 10 is connected to the conduit 9 buried in the concrete 12 by using the joint adapter 11, and the operation of pulling down the conduit is completed. As described above, according to the end cover of the present invention, it is not necessary to cut out the heat insulating material in advance, so that the operation is simplified, and the amount of the heat insulating material finally cut out is also the minimum necessary. There is less waste of insulation.

Further, since the end cover is provided with a heat insulating material for covering the surface thereof, there is little heat flow in and out of the portion where the end cover is provided, and a high heat insulating effect is exhibited. Further, since the length of the annular tongue piece of the end cover is larger than the thickness of the heat insulating material, the mounting position of the end cover becomes clear, and the workability of removing the cut heat insulating material is further improved. Become.

In this embodiment, the tongue piece for cutting the heat insulating material is annular, but it may be discontinuous and intermittent, and the blade portions are of the same height. However, various shapes such as a waveform and a pointed shape can also be considered.

[0019]

According to the present invention, the work of attaching the end cover is facilitated, and the heat insulating material to be removed is the minimum necessary, the waste is small, and the heat insulating efficiency is high.

[Brief description of the drawings]

FIG. 1 is a perspective view of an end cover according to the present invention.

FIG. 2 is a sectional view of the end cover according to the present invention.

FIG. 3 is a cross-sectional view illustrating a state where the end cover according to the present invention is installed on a heat insulating material.

FIG. 4 is a cross-sectional view showing a concrete casting state.

FIG. 5 is a cross-sectional view in a state where a part of a heat insulating material is removed.

FIG. 6 is a cross-sectional view illustrating a connection state of a conduit tube.

FIG. 7 is a perspective view of a conventional end cover.

FIG. 8 is a sectional view of a conventional end cover.

FIG. 9 is a cross-sectional view illustrating a use state of a conventional end cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 End cover main body 2 Connector 3 Heat insulating material 4 Edge part 5 Annular tongue piece 6 Blade part 7 Heat insulating material 8 Formwork

Claims (5)

(57) [Scope of request for utility model registration] 1. An end cover embedded in a slab provided with a heat insulating material, wherein an end of the end cover has a projecting piece protruding toward the heat insulating material. cover. 2. The end cover according to claim 1, wherein a blade is formed at a tip of the projecting piece. 3. A process according to claim 1 or, characterized in that the length of the projecting piece and the thickness and substantially in the same level or slightly greater insulation
An end cover according to claim 2. 4. The method of claim 1, the opening side of the end cover, characterized by comprising heat insulating material is provided on the opposite side請
The end cover according to any one of claims 2 and 3 . 5. A method according to claim 1, the heat insulating material on the surface of the opening side of the end cover, characterized in that the thus provided, according to claim 2,請
The end cover according to any one of claims 3 and 4 .