Static structures (e.g. – buildings) – Cover with surface water receiver at eave or valley
Patent
1988-11-15
1990-03-27
Scherbel, David A.
Static structures (e.g., buildings)
Cover with surface water receiver at eave or valley
52 13, E04D 1300
Patent
active
049109260
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an arrangement in eave gutters of the kind set forth in the preamble of claim 1.
Many different kinds of channel sections for eave gutters, and associated mounting devices are known to the art. One serious disadvantage with these known channel sections is that they often need to be manufactured to accurate measurements. Another drawback with known gutter arrangements of this kind is that they fail to provide a facility whereby the channel section can be permitted to twist or skew prior to being fitted. This requires subsequent alignment of the channel sections, which is both troublesome and time consuming.
US-A 3 150 851 teaches a gutter arrangement comprising a channel section and channel mounting devices comprising a mounting bracket and a strut or brace of the kind set forth in the preamble of the main claim, one end of this brace or strut engaging in the mounting bracket and the other end engaging the front edge of the channel section. In this prior art arrangement) the strut engages a groove provided in the lower edge of the rear wall of the channel section through a bridging tongue and extends therefrom essentially horizontally to the front edge of the channel section. The groove and the co-acting, downwardly extending part of the strut present saw-tooth locking surfaces.
This earlier known construction is encumbered with several drawbacks. The mounting bracket is manufactured from extruded aluminium and presents a tongue which extends obliquely downwards from a shoulder or abutment surface adjacent the upper edge of the vertical part. When fitting a gutter to the eaves, the tongue is forced in against the rear wall of the channel section and is expected to be held firmly thereby. Any load exerted on the gutter, subsequent to fitting the strut will attempt to withdraw the tongue. The tongue is thus constantly subjected to fatigue stresses, and since aluminium has a low fatigue strength, it is liable to fracture after being in use for but a short time. The horizontal extension of the strut also means that the strut is not able to absorb vertical loads on the gutter or channel section. Furthermore, the saw-tooth abutment surfaces make it impossible to remove the strut from the mounting bracket without seriously damaging or destroying the serrated locking surfaces. Moreover, because the strut is lowered within the channel section, the strut is liable to form a trap for any leaves falling therein, and inhibits the flow of water along the guttering.
The publication AU-B 35801/78 teaches an eaves gutter which, distinct from the aforementioned gutter arrangement, includes a strut or brace having an upwardly bent part which can be inserted beneath the tongue and which is intended to press the rear wall of the channel section firmly against the mounting bracket. The upwardly bent part of the strut and the tongue are locked firmly together by means of co-acting grooves and outwardly projecting parts. The opposite end of the strut is of part-circular configuration and is held in a corresponding part-circular upper edge on the front wall of the channel section.
This gutter arrangement is even less able to take-up vertically acting loads, since the strut of this arrangement extends obliquely upwards. The obliquely downwardly extending struts also form traps which collect any leaves falling into the gutter, therewith forming dams which prevent the water from running into the downpipe. Consequently, such gutters have to be cleansed regularly. The struts can also be dislodged out of engagement with the tongue.
The object of the present invention is therefore to provide an arrangement in eaves gutters comprising a channel section and gutter mounting devices of the aforesaid kind which are capable of being mounted simply and rapidly, even though the channel sections have been deformed, and which will be positively and stably attached subsequent to being mounted, and in which the channel sections, when necessary, can be readily and quickly dismantled without damage thereto. A further ob
REFERENCES:
patent: 2784687 (1957-03-01), Hovey
patent: 3295803 (1967-01-01), Blayden
patent: 3296749 (1967-01-01), Cotter
patent: 4241548 (1980-12-01), Rowe
AB Siba - Verken
Scherbel David A.
Smith Creighton
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