Static structures (e.g. – buildings) – Inclined top cover
Patent
1994-09-21
1996-06-04
Friedman, Carl D.
Static structures (e.g., buildings)
Inclined top cover
52520, 52546, 52547, 52548, 52549, 524891, 524892, 52358, 52359, 52362, 52712, 52714, E04B 706, E04D 336, E04D 134
Patent
active
055221874
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention primarily relates to a sloping roof provided with roofing tiles, the roofing tiles resting by means of a ridge on tile laths, overlapping one another in two directions and being fixed by means of tile hooks, and each tile hook comprising a first shaft section which at the free end has a hooked shaped bend which grips around a closing groove on a side edge of a first tile, a second shaft section having means by which the tile hook is fixed to a tile lath and a shoulder which is located between the two shaft sections, both shaft sections extending essentially perpendicular to the said shoulder of hooks.
BACKGROUND OF THE INVENTION
A roof of this type is disclosed in FR-A-353322.
The most important function of tile hooks is to prevent the tiles rattling and falling from the roof when the wind force is high. The bond between the tiles which can be produced by means of the known tile hooks leaves something to be desired; the so-called pull-out value is low, that is to say that in the event of strong wind suction there is a risk of the tiles rattling and coming loose.
The aim of the invention is to avoid this disadvantage and to provide a sloping roof, indicated in the preamble, the tile hooks of which roof have a very high pull-out value (for example about 250N per hook) and can be fixed extremely simply with one hand.
SUMMARY OF THE INVENTION
According to the invention, the sloping roof is, to this end, characterized in that the shoulder of the hooks engages on the rear surface of a tile partially located under an other tile, that the length of the shoulder, viewed in a direction perpendicular to the shaft sections, is essentially equal to the distance between the upper surface of a tile lath and the top edge of said other tile, that the first shaft section merges into the plane of the shoulder by a sharp 90.degree.-fold and is straight along its entire length having no twisted portion, and that the distance between a shoulder and a hook shaped bend of a tile hook is essentially equal to the thickness of two tiles at the location of their overlap, such that the two tiles are clamped and pressed onto one another between a shoulder and a bend of a tile hook.
The invention also relates to a tile hook which is to be used for a slooping roof and comprises a first shaft section, which at the free end has a hook-shaped bend, a second shaft section which at the free end has means for fixing the tile hook to a tile lath, and a shoulder which is located between said shaft section, the two shaft sections extending essentially perpendicular to said shoulder.
According to the invention the plane of the first shaft section merges into the plane of the shoulder by a sharp 90.degree.-fold and is straight along its entire length having no twisted portion.
The tile hook can be improved if the tile hooks are able to bend in a controlled manner when the tiles are lifted as a result of a strong suction effect and, when the suction effect has passed, the hooks, despite their bending, are capable of fulfilling the same clamping function. To this end the fixing means for fixing the tile hook to a tile lath comprise a number of pins which extend perpendicularly to a strip which is connected by means of an attenuation to the second shaft section, at least one reinforcing rib or ridge extending in the longitudinal direction of the second shaft section, the shoulder and the bend between them.
In general, the most significant advantage of the tile hook according to the invention is that the bottom edge of a tile located above said hook and the top edge of a tile located below said hook are clamped to one another between the hook-shaped bend and the shoulder, it being possible, when the tile hook is used, to regard the tiles of a sloping roof as a single roofing body. The capacity to withstand walking on is greatly improved. When fitting, the tile hook can be positioned in the correct position and fixed with one hand, and when the hook is in the fitted position a firm bond is established between
REFERENCES:
patent: 1517944 (1994-12-01), Bobbitt
patent: 2106948 (1938-02-01), Harrington
patent: 4141191 (1979-02-01), Aarons
Bove Draadprodukten B.V.
Friedman Carl D.
Kent Christopher Todd
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