Static structures (e.g. – buildings) – Cover with surface water receiver at eave or valley – Inwardly of edge
Patent
1983-01-25
1985-03-26
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Cover with surface water receiver at eave or valley
Inwardly of edge
52 94, 52466, E04D 1300
Patent
active
045064792
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a roof or wall covering made of sheet material and comprising alternate wider and narrower strips, the outwardly oriented surfaces of which are concave and convex, respectively, and which have interengaging, folded longitudinal edge zones, and fastening members for securing the covering to a supporting substructure.
From Danish Patent Specification No. 134 789 there is known a roof covering of this kind in which the cross sectional profile of the edge zones of the concave strips is U-shaped while the profile of the convex strips is C-shaped. For assembling the covering each convex strip is slid longitudinally into engagement with two adjoining concave strips, with each of its edge zones located between the limbs of the U-shaped edge zone of a concave strip. The convex strips serve for creating a watertight connection between the concave strips which, according to the patent specification, are secured to a supporting substructure in a conventional manner not described in any detail.
SUMMARY OF THE INVENTION
According to the present invention a roof or wall covering of the kind referred to above is characterized in that the cross sectional profile of the longitudinal edge zones of the concave strips is S-shaped and comprises an inner portion adjoining the central section of the strip and curved towards the concave face of said central section, said inner portion having a first radius of curvature, a median portion curved in the opposite direction and having a second, smaller radius of curvature, and an outer portion having a third radius of curvature larger than the first radius of curvature;
that the fastening members are generally U-shaped brackets, each having a web portion secured to the substructure and two lateral flanges, the free edge zones of which are profiled complementary to the edge zones of the concave strips and are retracted inwardly towards the centre line of the U at the transition to the adjoining portion of the respective lateral flange;
that the edge zones of the convex strips are profiled complementary to the median and outer portions of the edge zones of the concave strips;
and that the width of the convex strips is smaller than the total outer width of a fastening bracket plus the edge zones of two concave strips inserted in the bracket fom opposite sides thereof.
The invention results in several advantages, including a highly efficient securing of the strips to the substructure due to the fact that the convex strips embrace a substantial portion of the fastening brackets and the edge zones of the intermediate concave strips and hold the latter securely by means of elastic forces determined by their being deformed from the unloaded state to the mounted or assembled position. Forces acting on the concave strips from the outside of the covering and directed towards the substructure will tend to deform the convex strips further whereby the reaction forces exerted by these strips increase. Suction forces acting on the outer side of the covering are taken up by the brackets as a result of the interengagement between the edge zones of the brackets and the S-shaped edge zones of the concave strips. Assembling the strips is an extremely simple operation, one edge zone of each concave strip being pushed sideways into the lateral flanges on the associated row of brackets, following which the strip is compressed laterally until its other edge zone can be moved past the associated row of brackets and snap into the lateral flanges of those brackets accompanied by a certain relaxation of the strip. The spacing between the two rows of brackets is chosen somewhat less than the spacing corresponding to the width of the strip in its unloaded or fully relaxed state, but the resiliency of the strips permits some variation of the spacing chosen. After the two concave strips engaging in one and the same row of brackets have been inserted, the associated convex strip is mounted simply by being pushed downwards over the edge zones of the concav
REFERENCES:
patent: 141929 (1873-08-01), Hegeler et al.
patent: 183519 (1876-10-01), Vaile
patent: 1780862 (1930-11-01), Bloss
patent: 2234799 (1941-03-01), Eason
LandOfFree
Roof or wall covering and mounting member for a gutter bracket does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Roof or wall covering and mounting member for a gutter bracket, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roof or wall covering and mounting member for a gutter bracket will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1288149