JPS5922857B2 - roofing material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roofing material, in which an insertion piece 2 is extended outwardly from one side of a roofing material body 1 made of a metal plate, and the other side of the roofing material body 1 is directed downward. a folded piece 3 is formed by folding back along the folded piece 3, and the tip of the folded piece 3 is folded back along the lower surface side of the folded piece 3 to extend outward from the side edge of the roofing material main body 1 to provide a draining piece 4; The recess formed by the extended base portion of the waste water cutter piece 4 and the folded back piece 3 is used as the insertion recess 5 into which the insertion piece 2 is inserted, and the extended tip of the waste water cutter piece 4 is folded back to the surface side to form a water cutter protrusion. A piece 6 is formed, and the part of the eave-side edge of the waste water cutter 40 that protrudes from the roof material body 1 is pulled into the ridge side to form a step 12, and the eave side of the waste water cutter 40 including this step 12 is formed. This roofing material is characterized in that it has a front piece 7 which is bent downward over the entire length of the edge portion and whose stepped portion 12 is recessed toward the ridge.

In the past, water accumulated on the drainage strip and was forced to drain onto the roofing material below the eave side edge.

The present invention has been invented in view of the above points, and its object is to provide a roofing material that facilitates drainage of water downward from the eave side end of the drainage strip.

The present invention will be explained in detail below with reference to Examples.

In the figure, 1 is the roofing material body, which is formed of a metal plate such as a copper plate, a galvanized iron plate, or a resin-coated metal plate.
An insertion piece 2 extends through the insertion piece 2, and both sides of the insertion piece 2 are cut out so that the extending tip is slightly sandwiched in the middle. This makes it easy to do so.

The other side of the roof material body 1 is folded back along the lower surface side to form a folded piece 3, and the tip of the folded piece 3 is folded back along the lower surface side of the folded piece 3 to form a folded piece 3 that is lower than the side edge of the roofing material body 1. A drain cutter piece 4 is provided extending outwardly, and serves as an insertion recess 5 into which the insertion piece 2, which is a recess formed by the extended base portion of the drain cutter piece 4 and the folded piece 3, is inserted. be.

The part of the eave-side edge of the waste water cutter 40 that protrudes from the roof material body 1 is slightly retracted toward the ridge side to form a step 12, and the entire length of the eave-side edge of the waste water cutter 40 including this step 12. A front piece 7 is formed which is bent downward over the entire length and the stepped portion 12 is recessed toward the ridge side.

The edge of the roofing material body 10 on the ridge side is folded back to the upper side in a rectangular shape to serve as an upper locking piece 9, and the edge of the eave side of the roofing material body 10 is folded back to the lower side to serve as a lower locking piece 10. It is.

Further, the end of the upper locking piece 9 on the side of the waste water cutter 4 is further folded back to the upper surface side and then extends along the upper edge of the waste water cutter 4 to form an extended upper locking piece 11.

Thus, in the roofing material having the above structure, the insertion piece 2 of the adjacent roofing material is inserted into the insertion recess 5 to connect the roofing materials laterally, and the lower locking piece 10 of the upper roofing material is inserted into the insertion recess 5. is engaged with the upper locking piece 9 of the lower roofing material to connect the roofing materials in the vertical direction.

In this case, the rainwater that has flowed onto the draining strip 4 flows to the eave side edge, but since the front piece 7 is provided at the eave side edge downward, the rainwater does not accumulate on the eave side edge. It flows downward, guided by the front piece 7, and flows over the upper surface of the roofing material below.

Moreover, since the stepped portion 12 is the front piece 7 recessed toward the ridge, a space 13 is formed between the front piece 7 and the front surface of the L-shaped lower locking piece 10 at the stepped portion 12. Rainwater flowing using the front piece 7 as a guide can flow downward more smoothly.

In addition, as shown in FIG. 5, the rear protruding piece 14 may protrude from the lower end of the front piece 7 toward the ridge side.

Furthermore, if the draining protrusion 6 is folded back to form the reinforcing portion 15, the draining protrusion 6 is prevented from being crushed when walking on the ridge surface after construction, and the draining effect is not reduced.

Thus, in the present invention, as described above, the part of the eave-side edge of the draining strip that protrudes from the roofing material body is slightly retracted toward the ridge side to form a step, and the step includes the step. Since the eave-side end edge of the drain strip was bent downward over the entire length to form a front piece with the step part recessed toward the ridge, rainwater that flowed over the drain strip would accumulate at the eave edge. It flows down, guided by the front piece, and flows over the upper surface of the lower roofing material, and furthermore, a space is formed between the front piece and the front of the L-shaped lower locking piece at the step part, and the flow guides the front piece. This has the advantage that the rainwater flowing as a result can flow downward more smoothly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an enlarged partially cutaway perspective view of the front piece of the same as the above gate, Fig. 3 is a sectional view showing the longitudinal connection part of the same as above, The figure is a lateral cross-sectional view of the same as above, and FIG. 5 is a cross-sectional view of another embodiment of the present invention, in which 1 is a roofing material body, 2 is an insertion piece, 3 is a folded piece, 4
5 is the insertion recess, 6 is the drain piece,
7 is a front piece.

Claims (1)

[Claims] 1. Extend an insert piece outward from one side of the metal roofing material body, fold the other side of the roofing material body along the lower surface side to form a folded piece, and attach the tip of the folded piece to the folded piece. A drain cutter is provided by folding back along the lower surface side and extending outward from the side edge of the roofing material body, and the recess formed by the extended base portion of the drain cutter and the folded back piece is inserted into the piece. The extension tip of the draining strip is folded back to the surface side to form a draining protrusion, and the part of the eave side edge of the draining strip that protrudes from the main body of the roofing material is pulled in toward the ridge side. It is characterized by forming a stepped part, and bending downward over the entire length of the edge of the eave side of the drain strip including the stepped part, so that the stepped part forms a front piece recessed toward the ridge side. roofing material.