JPH0636138Y2 - Unit type rooftop waterproof structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a roof water-stop structure. More specifically, it relates to a unit type rooftop waterproof structure.

(Problems to be solved by conventional techniques and devices) Buildings with a concrete structure with a flat roof have to be stopped to prevent water such as rainwater and snow that accumulates on the roof from penetrating indoors. Water work is performed.

Traditionally, these constructions have used water-impermeable, oil-impregnated cloth or paper or plastic films or sheets, called tarpaulins, as inner layers, while the outer layers above them are mechanically protected from sunlight and / or from outside. Includes top-coating that suppresses impact.

However, these rooftop water-stop structures cannot be stretched by following the cracks due to shrinkage due to aging of the concrete structure, and also sudden jumps from the outside, scratches by colliding objects with sharp angles, It is unavoidable that the rainwater, snowmelt water, etc. will invade from the damage location of these water-stopping structures and cause water leakage to the inside of the concrete structure underneath. .

Composing these rooftop water-stop structures with metal plates
It is known. However, forming with a single metal plate,
It is extremely effective in avoiding various problems from the construction work of the seam or the part of the seam.

However, even if the rooftop area is too small, it is extremely difficult to transport and install the rooftop waterproof structure to the rooftop.Therefore, it is necessary to weld a plate of a certain size on the construction site while adjusting the dimensions. It is generally practiced to join them by such a method.

However, these methods have a drawback in that the joint portions of the metal plates are distorted due to thermal expansion during welding, and it is difficult to form a flat roof water-stop structure.

In particular, when these rooftop water-stop structures are formed of a metal plate having a thickness of 1 mm or less, the rigidity of the metal plate is small and
It has been considered difficult to maintain the flatness of the metal plates after joining due to abnormal partial expansion of the metal plates due to welding heat when welding the metal plates to each other.

Also, when a metal plate is laid on the roof, or when wavy due to distortion generated during welding of the metal plate, a gap is created between the lower part of the metal plate and the roof part of the roof. Is a place for inducing and retaining moisture such as rainwater, snowmelt water, and dew condensation water from the periphery of the rooftop waterproof structure to the central portion.

The present inventor, as a result of various thoughts and studies to solve these drawbacks, can smoothly drain the rainwater or the snowmelt water that has fallen, do not include an air layer in the lower part, and join it. We have completed a unit-type rooftop waterproof structure that does not sometimes deform due to welding heat.

(Means for Solving the Problems) That is, the present invention is a unit-type rooftop water-stop structure composed of a metal flat plate having rising portions whose four sides are bent at right angles, and a part of four corners of the flat plate. Drainage outlet for
One or more air vents are provided on the flat plate, and the rising portion further has a joining portion with an adjacent rising portion via a metal plate.

Since this metal plate has a structure in which four sides are bent at right angles and the four corners are joined by welding or the like, water such as rainwater, snowmelt water, etc. that has fallen on top of this is the unit type rooftop waterproof structure. It is designed to be held inside.

Water such as rainwater and snowmelt water can be drained freely from the drain outlets provided at some of the four corners of the unit-type rooftop waterproof structure, and if necessary, this drain outlet can be threaded. It is possible to screw it open and close freely with the plug that it has.

In addition, since this metal plate covers a part of a certain area on the roof, it contains a gap in the lower part during construction, and this gap moves water and dew condensation water that has intruded into the lower part by capillary action,
Includes an air vent that prevents it from acting as a hold.

This air bleeder can be freely installed at any place on the flat plate, and is composed of an upright tube or a cylindrical object penetrating through the flat plate, and the tip is curved or bent to open downward. Water such as rainwater and snowmelt water is prevented from entering below the metal flat plate through the opening.

Further, the air vent may be formed such that the tube or the tubular member and the curved or bent front end opening are higher than the heights of the four bent sides.

The unit-type rooftop water-stop structure is a flat plate-shaped structure formed to have the same size or an integral multiple thereof, through four sides bent at right angles, thermal bonding such as welding,
It can be detachably joined by various methods such as mechanical joining of screws and joints, jig joining, and scientific joining of adhesives and sealing agents.

In this case, a metal plate such as a thin copper plate is interposed between the rising portions of the metal plates to avoid partial concentration of heat at the time of welding, and thereby the metal plates joined together may not be bent or deformed. Prevents distortion.

Therefore, even when covering a vast rooftop area, or even when covering a rooftop part of a complicated shape, it is possible to easily and easily by combining these various unit-type rooftop water-stop structures or machining. A complete rooftop waterproof structure can be completed quickly, and even in the case of a high-rise building, it becomes extremely easy to transport and move these unit-type rooftop waterproof structures to the rooftop.

In order to understand the contents of the present invention more clearly, the embodiments will be described in detail below with reference to the accompanying drawings.

Example As shown in FIGS. 1 and 2, the metal flat plate 1 is
Uprights 2 standing upright on all sides and at least 1 near the four corners
One of the drain outlets 3 is provided in the opposite direction to the rising portion 2 and is internally threaded, and at least one of them is upright in the direction of the rising portion 2 and the length of the upright portion is the rising portion 2. Air vent 4 which is longer and has a curved tip with an opening 5 pointing downwards.

As shown in FIGS. 3A to 3C, the four sides constituted by the rising portions 2 preferably have L-shaped or C-shaped or folded-back ends.

Further, as shown in FIG. 2, the drain drainage port 3 is provided with a screw thread on the inner surface thereof, and includes a plug to be screwed with the screw thread, and one unit of the unit type rooftop waterproof structure according to the present invention. Alternatively, it is possible to test and study the water blocking effect of the weld.

Furthermore, the air vent 5 may have various shapes as shown in FIGS. 4A to 4D, and a plurality of downward opening portions may be provided.

However, this opening must be installed at a position higher than the joined rising portion.

(Effect of the Invention) By adding the above-mentioned structure and structure, the unit type rooftop water-stop structure of the present invention has an extremely excellent workability, and is a rooftop of a vast and complicated shape that is quick and easy. It was recognized that a water-stop structure can be completed, and a structure that is flat and does not leave an air layer at the bottom can be economically constructed.

It should be understood that the present invention is not limited to the above embodiments and the accompanying drawings below, and modifications that can be easily conceived by those skilled in the art are within the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a partial front view of a unit-type rooftop waterproof structure according to the present invention. FIG. 2 is a partially cut side view of a unit type rooftop waterproof structure according to the present invention taken along the line AA of FIG. 3 (a) to 3 (c) are side views showing an example of a rising portion constituting four sides for a unit-type rooftop waterproof structure according to the present invention. 4A to 4D are side views showing an example of an air vent for a unit type rooftop waterproof structure according to the present invention. In the attached drawings, 1 ... metal flat plate, 2 ... rising part, 3 ... drainage port,
4 ... Air vent 5 ... Tip opening.

Claims (4)

[Scope of utility model registration request] 1. A unit-type rooftop water-stop structure comprising a metal flat plate having rising portions with four sides bent, wherein drain holes are provided at some of the four corners of the flat plate, and one is provided on the flat plate. A unit-type rooftop water-stop structure having the above-mentioned air vents, and further comprising a joining portion between the rising portion and a neighboring rising portion via a metal plate. 2. The structure according to claim 1 of the utility model registration, wherein the drainage port has a screw thread on the inner surface and includes a plug which can be screwed into the screw thread. A unit type rooftop waterproof structure. 3. The structure according to claim 1 of the utility model registration, wherein the air vent is composed of a tube or a cylinder standing upright on the flat plate, the tip of which is curved or bent, and the downward direction. A unit-type rooftop water-stop structure having a facing opening. 4. The unit type rooftop according to claim 1, wherein the metal plate interposed between the joints of the adjacent rising portions is a copper plate. Water structure.