JPH0738520Y2 - Folded plate roof made of steel plate - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a steel plate folded plate roof of a building, and more particularly to a tail-drip structure of an end on the underwater side.

[Prior Art] FIG. 3 shows an underwater side end portion of a generally used steel plate folded plate roof, in which a folded plate roof 1B has a mountain portion 2 and a valley portion 3 which are parallel to each other. They are formed alternately. Then, rainwater flows downward in the valley 3, but when the slope is gentle, the drainage is poor, and as shown in FIG. 4, it may wrap around from the edge 30 on the underside to the back surface and reach the eaves back. is there.

Therefore, in order to prevent the rainwater from wrapping around, as in the folded plate roof 1C shown in FIG. 5, a means for forming a tail droop 4 in which the water end of the valley 3 is bent in parallel is taken. (Actual exploitation 59
No. -104915, No. 62-131019, Shokai. However, the slope of the tail droop 4 has a processing upper limit, and even if the tail droop 4 is formed, if the tail droop 4 is gentle and has a small amount of rain, the wraparound of the rainwater may still occur.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned circumstances.
An object of the present invention is to provide a tail-hanging structure of a steel plate folded plate roof capable of preventing rainwater from flowing around even in the case of a small amount of rainfall, and thus to solve the conventional problems.

[Means for Solving the Problem] In the present invention, a parallel shape has an end edge of the bottom of the folded plate roof under the water and a parallel shape with the end edge of the valley as the base and the midpoint in the width direction of the valley as the apex. It is characterized in that it has a triangular shape and has a tail drop forming a groove having a V-shaped cross section along the edge.

[Operation] At the end of the valley below the water, a V-shaped groove is formed at the center of the tail droop, which is steeper than the general area. It is concentrated in a place and flows down from the edge. Therefore, compared with the conventional parallel bending tail droop, rainwater drops far better than rainwater falling from the entire width of the valley, and even if the folding board roof has a gentle slope and a small amount of rain, the water wraparound does not occur. Does not happen.

[Embodiment] The present invention will be described with reference to an embodiment shown in FIGS. 1 and 2.

The folded plate roof 1A is made of a steel plate, and the ridges 2 and the valleys 3 having a trapezoidal cross section are arranged in parallel and alternately and continuously.

A tail droop 4 having a steeper slope than that of the general portion is formed at the end on the underwater side of each valley 3. The tail drop 4 is the edge 30 of the valley 3.
Is the bottom side, and the middle point of the valley portion 3 in the width direction is the apex a, and this and the both ends of the edge 30 are connected to each other by a straight line to form a substantially triangular shape. It is formed by bending a straight line connecting a and the midpoint of the end edge 30, and forms a groove having a V-shaped cross section in the direction along the end edge 30.

Then rainwater drops from the valley 3 to the tail 4
Since it flows into the V-shaped groove and flows further concentratedly in the V-shaped groove, the water volume increases and flows down from the tip of the groove to a gutter (not shown) provided along the edge of the roof.

[Effect] In the folded plate roof of the present invention, however, the rainwater in each valley 3 concentrates at one location and flows to increase the volume of water to be dripped, resulting in better drainage. It is prevented from wrapping around on the back side. Further, in the conventional parallel-bend dripping shown in FIG.
It is difficult to accurately bend the corners where the and are in contact with each other, and mountain-shaped swells may occur and sand or fine dust may accumulate here to prevent rainwater from flowing down. It can be bent easily and can be bent accurately.

[Brief description of drawings]

FIGS. 1 and 2 show an embodiment of the present invention. FIG. 1 is a perspective view of an underwater side end of a folded plate roof, and FIG.
Fig. 3 is a sectional view taken along the line II-II in Fig. 3, Fig. 3 is a perspective view of an underwater side end of a conventional folded plate roof, and Fig. 4 is a longitudinal sectional view of the folded plate roof in Fig. 3, Fig. 5. FIG. 6 is a perspective view of an underwater end of another conventional folded plate roof. 1A …… Folded plate roof of the present invention 1B, 1C …… Conventional folded plate roof 2 …… Mountains 3 …… Valley 30 …… Valley edge 4 …… Tail droop a …… Vertex

Claims (1)

[Scope of utility model registration request] 1. In a folded steel plate roof made of a steel plate in which peaks and valleys are alternately continuous, a plane shape is formed at the submerged end of the valleys in a width direction of the valleys with the edge of the valleys as the bottom. A pendant structure of a steel sheet folded plate roof, which is a triangular shape having an apex at a substantially midpoint, and has a hang droop having a V-shaped groove in cross section along the above-mentioned edge.