JPH0624503Y2 - Rainwater drainage device on the roof of an assembled building - Google Patents

Description

TECHNICAL FIELD The present invention relates to a rainwater discharge device for a roof in an assembled building installed in a carport, a terrace, or the like.

Problems to be Solved by the Invention The roof of this type of assembled building is generally assembled by attaching roofing material such as plastic roofing plate to a roof component made of extruded aluminum through packing or the like. However, it is inevitable that rainwater will invade from the part where the roofing material is attached to the roof component.

Therefore, conventionally, measures have been taken to provide rainwater discharge gutters or the like on aluminum extruded mold materials and packing, but this is not a sufficient measure.

It is an object of the present invention to provide a rainwater discharge device capable of completely discharging rainwater which is about to enter the roof of a prefabricated building.

Means for Solving the Problems A rainwater discharge device according to the present invention is provided with roof eaves side end portions of rafters at a plurality of longitudinal positions on the inner surface of the eaves girder, and roof plate receiving portions provided on the upper surface of the eaves girder. The roof plate receiving portion receives the eaves side edge of the roof plate, the roof plate receiving portions are provided on both upper edges of the rafter, and the inclined edge portions of the roof plate are received by the both roof plate receiving portions. In the roof of the prefabricated building, packing is arranged on the upper surface of the rafter so as to straddle both roof plate receiving portions of the rafter, and both edges of the packing are respectively provided between the roof plate receiving portions of both rafters and the inclined edge of the roof plate. The eaves-side end of the packing is interposed and protrudes outward from the roof plate receiving portion of the eaves girder, and a rainwater discharge guide groove extending in the length direction is formed on the upper surface of the packing.

Action Rainwater that tries to enter from the sloping edge of the roof plate is caught by the packing placed below it, and the packing is interposed between the roof plate receiving part of the rafter and the sloping edge of the roof plate. , In the meantime, rainwater does not pass through and is guided along the packing groove to the eaves and falls from there. The fallen rainwater is received by the upper surface of the eaves girder and discharged to the outside of the roof.

Embodiment An embodiment in which the present invention is applied to a carport will be described below with reference to the drawings.

As shown in FIG. 4, the carport is a pair of left and right eaves girders 13, and a pair of left and right eaves girders 13 placed on the upper ends of the pillars 11 on the same left and right sides via a support member 12, respectively. Digit 13
A plurality of arch-shaped rafters 14 which are stopped at intervals in the front-rear direction, and rafters 14 adjacent to each other at the top of the rafters 14.
A plurality of purlins 15 that have been handed off to and adjacent rafters 14
A plurality of roof boards 16 arranged between the eaves girders 13 and the purlins 15 in between, and a plurality of purlins 17 which are attached to the rafters 14 adjacent to each other while being applied to the lower surface of the roof board 16. ing.

The columns 11, eaves girders 13, rafters 14, purlins 15 and purlins 17 are all made of extruded aluminum material, and the roof plate 16 is made of plastic.

The eaves girder 13 has a rectangular cross section, as shown in detail in FIG. An inwardly projecting rafter receiver 21 is provided on the lower edge of the inner side of the eaves girder 13, and an end of the rafter 14 on the eaves side is bolted.
Stopped at 22. The outer surface of the eaves girder 13 is a semi-circular gutter
23 are integrally provided. A roof plate receiving portion 24 is provided on the inner edge of the upper surface of the eaves girder 13 so as to project upward. The roof plate receiving portion 24 is formed with an upper opening internal enlarged groove 25, and the eaves side edge portion of the roof plate 16 is received by a bead 26 having a substantially I-shaped cross section fixed to the groove 25. Although the bead 26 is fitted over almost the entire length of the internal expansion groove 25, the bead is provided at a portion of the internal expansion groove 25 that intersects with the extension line of the rafter 14.
26 is not fitted. Roof board receiving part 24 on the upper surface of the eaves girder 13
A roof plate pressing portion 27 is provided outside the. The roof plate pressing portion 27 has a substantially L-shaped cross section, and is composed of a side wall 27a that rises near the outer edge of the upper surface of the eaves girder 13 and a top wall 27b that extends inward from the upper end thereof. A rainwater discharge hole 28 is provided in the middle of the height of the side wall 27a. Roof panel 16 with top wall 27b
The eaves side edge of is being pressed down.

Although the rainwater discharge hole 28 is a drill hole, how to open it will be described with reference to FIG. Walls on both sides of the side wall 27a of the roof plate pressing portion 27 are bent in a V shape with a straight line L extending in the length direction of the side wall 27a passing through the center of the rainwater discharge hole 28 as a boundary. The V-shaped flank angle α is approximately 150 degrees, which is larger than the usual sharp edge angle β. At the time of drilling, the cutting edge may be pressed on the straight line L which is the bottom of the V-shape with the drill D positioned on the center line of the included angle α, but even if the cutting edge is deviated from the straight line. Guided by the wall surface, the cutting edge is directed to the straight line L.

The rafter 14 has a rectangular cross section, as shown in detail in FIG. At the center of the upper surface of the rafter 14, a pushing edge attachment portion 31 having a substantially H-shaped cross section is provided, and on both sides thereof, a roof plate receiving portion 32 having a substantially L-shaped cross section is provided so as to project upward. Rafter 14
On the upper surface of the packing 41, a packing 41 is arranged so as to extend over the pushing edge mounting portion 31 and to straddle both roof plate receiving portions 32, and a substantially flat plate-shaped pushing edge is attached to the pushing edge mounting portion 31 via the central portion of the packing 41. The central portion of 51 is received, and the inclined edges of the roof plate 16 are received by the both roof plate receiving portions 32 via the both edge parts. The screw 52 penetrates through the central portions of the pushing edge 51 and the packing 41 and is screwed into the pushing edge mounting portion 31. Push edge
Both edges of 51 reach above the roof plate receiving portion 32, and a bead 54 is formed in each of the inner edges of the lower expansion opening 53 which is formed with a downward opening internal expansion groove 53. Holds down 16 slanted edges. Referring to FIG. 3, on the upper surface of the packing 41, there are two kinds of large and small ridges extending in the length direction.
By forming 42, a rainwater discharge guide groove 43 is formed. Also, referring to FIG. 2, the eaves-side end of the packing 41 passes through the roof plate receiving portion 24 of the eaves girder 13 where there is no bead 26, and the roof plate receiving portion 24 and the roof plate pressing portion on the upper surface of the eaves girder 13 are provided. It is faced between the side walls 27a of 27.

Rainwater attempts to enter the roof through the route described below, but is all drained out of the roof.

First, as shown by the arrow A in FIG. 1, the first path is the screw hole of the pushing edge 51, but since the packing 41 is around the screw hole, the rainwater that has entered the screw hole is It does not overflow from the screw holes. Similarly, as shown by the arrow B in FIG. 1, the second route is between the inclined edge of the roof plate 16 and the bead 54 above it, but rainwater entering from there is received by the packing 41. The packing 41 is guided to the end on the eaves side. If there is no packing 41, the rainwater is rafters.
It flows along the upper surface of 14 to the end of the rafter 14 on the eaves side, collects on the rafter receiver 21 at the same end, and the accumulated rainwater flows down from the bolt hole. Next, as shown by the arrow C in FIG. 2, the third route is between the edge of the roof plate 16 on the eaves side and the roof plate retainer portion 27 of the eaves girder 13. The rainwater guided by the packing 41 is received by the upper surface of the eaves girder 13 and discharged into the gutter 23 through the rainwater discharge hole 28.

Effect of the Invention According to this invention, rainwater that tries to enter the roof is received by the packing, guided to the eaves and discharged to the outside of the roof, so that rainwater that tries to enter the roof is completely removed. Can be discharged.

[Brief description of drawings]

The drawing shows an embodiment of the present invention. Fig. 1 is a vertical sectional view of a roof rafter and its periphery, Fig. 2 is a vertical sectional view of a roof eaves girder and its peripheral portion, and Fig. 3 is a sectional view of packing. ,
FIG. 4 is an overall perspective view of a carport which is an assembled building, and FIG.
The figure is an explanatory view showing how to open a perforation hole. 13 ... Eaves girder, 14 rafters, 16 ... Shingles, 24 ... Shingles, 27
… Roof plate retainer, 28… Rainwater discharge hole, 31… Push edge mounting part, 32… Roof plate receiving part, 41… Packing, 51… Push edge.

Claims (1)

[Scope of utility model registration request] 1. An eaves-side end of a rafter 14 is received at a plurality of longitudinal positions on the inside surface of the eaves girder 13, and a roof plate receiving portion 24 is provided on the upper surface of the eaves girder 13. The eaves side edge of the roof board 16 is received, and the roof board receiving portions 32 are provided on both upper edges of the rafter 14, respectively.
In the roof of an assembled building where 16 sloping edges are received, packing 41 is placed on the upper surface of rafter 14 and both roof plate receiving portions 32 of rafter 14 are attached.
Both edges of the packing 41 are interposed between the roof board receiving portion 32 and the inclined edge of the roof board 16, respectively, and the eaves side end of the packing 41 is the roof board of the eaves girder 13. Receiver
A rainwater discharge device having a rainwater discharge guide groove 43 formed on the upper surface of the packing 41 so as to project outward from 24 and extending in the lengthwise direction thereof.