CZ20011672A3 - Eaves gutter and installation process thereof - Google Patents

Abstract

A drainage gutter for use in connection with an under-roof and comprising at least one elongate gutter member with a first profile (1, 4) of substantially U-shaped cross section. The drainage gutter further comprises at least one holding means (2) which, without damaging the underroof, may retain the underroof in the drainage gutter.

Description

Gutter and method of its installation

Technical field

The present invention relates to a gutter for draining water from an opening in a roofing and comprising at least one gutter element comprising a first U-shaped cross-section.

BACKGROUND OF THE INVENTION

Such gutters can be used, for example, when the window is to be mounted in a roof structure with a roof underlay.

To create a window space to be mounted in the roof structure, the horizontal strips between the two rafters are cut and a hole is formed in the roof underlay attached to the rafters.

To prevent water from melting, penetrating blown snow or other types of moisture from passing down the top surface of the roofing and reaching the window through the opening, it is necessary to provide a gutter that can drain water from the opening to the intact roofing away from the opening.

This is usually done by terminating the section of the roof substrate above the window so that it extends beyond the section located below in which the window opening is to be cut.

The uppermost section is then formed with two slits extending substantially perpendicular to the lower edge of the roofing section along the two rafters between which the window is positioned, so that a tongue is formed between the points where the section is fastened to the respective rafters.

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The gutter can be shaped in place from the cut-out tongue by bending the free end of the tongue into a U-shape in front of the mounted roof substrate, whereupon the free end is fastened to a lath mounted between the rafters above the tongue.

In order for such a gutter to function satisfactorily, great care must be taken, since on the one hand the gutter must have a suitable slope and, on the other hand, must be so tightly secured to the battens that the gutter formed does not bend or collapse in the center. This last task is a particular problem for very flexible roof substrates.

Alternatively, a prefabricated substantially U-shaped gutter can be used, the gutter being mounted with a suitable inclination transversely between respective rafters, one U-shaped arm extending through the notches in the upper membrane so that the tongue ends down in that U-shaped.

In this context, however, there is a problem that the flexible roofing material can flex, thereby forming a pocket behind the gutter in which water can be trapped. If enough water is trapped in this pocket, it can become so heavy that it pulls the pen up and down from the gutter. This is particularly problematic in connection with very flexible roof substrates.

In order to avoid this problem, it is necessary to provide a gutter with a support in the form of a strip, which makes it possible to fasten the roof underlay by means of nails or the like, which pass through both the roofing and the gutter and the strip.

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Fixing the tongue in the eaves trough with adhesive tape or the like is in practice impossible due to the prevailing environment, because the eaves trough, for example, is exposed to temperature changes from -20 ° C to + 70 ° C on the one hand and can either be filled with water or exposed to too low air humidity.

The necessary support poses a problem in that the craftsman must have a piece of wood of suitable length to install the gutter at hand. This piece of wood must usually be brought from the ground or created on the ground, which takes precious time. Often, pieces of wood will be available for this support in the form of strips cut to create window space. However, these pieces of wood are necessarily shorter than the distance between the rafters and therefore cannot be used straight, but must be joined to form a single support, which is also very labor-intensive.

In addition, since the gutter is designed to be penetrated by nails or the like, partly with respect to attachment to the roofing, partly with regard to its mounting in support, the gutter is usually made of plastic or thin aluminum, but is therefore not sufficiently firm to be self-supporting.

Moreover, the nailing of the roof underlay in the gutter will result in the roof treasure not being immediately displaceable. If there are undesirable creases in the roof cladding during nailing, the nails must first be removed using suitable tools, the creases must be smoothed and the roof cladding must be newly nailed.

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It is an object of the present invention to provide a gutter of the type mentioned in the introduction, but which does not suffer from the above-mentioned disadvantages.

SUMMARY OF THE INVENTION

This object is achieved by a gutter of the type mentioned in the introduction, which comprises at least one retaining means which, without damaging the roofing, can retain the roofing in the guttering.

In a preferred embodiment of the invention, the retaining means comprises a second profile having a substantially U-shaped cross-section, said retaining means adapted to engage with the gutter element and engage to retain the roofing substrate, the roofing being clamped between respective U-shaped gutter arms. the element and the retaining means.

This arrangement simplifies and facilitates the execution, fastening of the roof underlay in the gutter.

It is particularly advantageous if the first arm is in the form of a letter

The retaining means is made of a flexible and flexible material so that it is possible to clamp roof substrates of different thicknesses.

In addition, it is also preferred that the second U-shaped arm of the trough member terminates in a bend or fold facing the interior of the U-shaped element, and when the second U-shaped arm of the retaining means is designed to resiliently engage beyond this bend or fold.

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In this way, a good locking is achieved between the trough element and the retaining means.

Advantageously, the second U-shaped arm of the holding means may also end in bending or folding.

This offers the advantage that the retaining means can be easily inserted and removed, for example, when the roof substrate is not positioned correctly in the gutter. A particular advantage is also that this is feasible without any risk of damaging the fingers. But it is also easy to do, even when gloves are worn.

In a preferred embodiment of the gutter according to the invention, the respective first U-shaped arms are longer than the respective second U-shaped arms of both the gutter element and the retaining means.

In this way, it is easy to mount the retaining means, while at the same time providing considerable freedom of choice regarding the placement of the roof substrate with respect to the gutter element.

In a further preferred embodiment of the gutter according to the invention, the two U-shaped arms of the holding means have substantially the same length.

In this way, the retaining means is provided with a symmetrical U-shaped cross-section, so that the retaining means can be easily rotated 180 ° in the longitudinal direction during assembly without affecting its function.

In a preferred embodiment of the present invention, the trough member forms a telescopic member and therefore also comprises at least one third profile having a substantially β-shaped cross-section.

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In yet another preferred embodiment of the present invention, the gutter and / or retaining means comprises anti-slip protection. According to a preferred embodiment of the invention, the anti-slip protection comprises a coating of anti-slip material or, according to another embodiment of the invention, friezes in the trough member.

This has the advantage that thin and / or smooth types of roofing can be securely fastened.

Another object of the present invention is to indicate the use of the gutter as described above, which is therefore solved by designing a gutter installation method, the essence of which is that the gutter has such rigidity that, at least in the case of a retaining means mounted, it can be mounted. the roof structure comprises at least two rafters and a roof support laid on their top without any further support other than underneath: the lying rafters at the respective ends of the gutter.

As a result, the time required for installation with respect to the aforementioned gutter gutters of the prior art is reduced.

The present invention will be described in more detail below by way of example with reference to the accompanying drawings.

Summary of drawings in drawings

Fig. 1 shows a perspective view of a telescopic design of a gutter according to ♦ 9'9 '9' · ''

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999999 of the present invention but without the securing element mounted;

Giant. 2 shows a perspective view of a retaining means according to the present invention;

Giant. 3 is a cross-sectional view of the telescopic gutter of FIG. 1 with the retaining means of FIG. 2 mounted;

Giant. 4 is a cross-sectional view of another embodiment of a gutter according to the present invention, with the retaining means mounted and the roof underlay attached;

Giant. 5 is a cross-sectional view of the gutter of FIG. 4, with the retaining means mounted but with a thicker roof underlay; and

Giant. 6 shows an alternative embodiment of the retaining means.

DETAILED DESCRIPTION OF THE INVENTION

On. Fig. 1 is a perspective view of a telescopic design of a gutter according to the present invention. The telescopic gutter comprises two substantially U-shaped elongated profiles 3 and 1, which in the following description will be referred to as the third and first profiles, respectively, which are designed to be longitudinally displaceable relative to each other. By shifting these two profiles 3 and 4 relative to each other, the total length of the gutter can be adjusted for given installation conditions, without the use of tools for such adjustment. This means in practice that the length can be adjusted to the distance between the two rafters on which it is desired to mount the gutter.

Preferably, the U-shaped arms 31, 41, which are referred to as the U-shaped rear arms and which are intended to abut on the rafters, are designed in such a way that they are longer than the U-shaped arms 32, 42 facing away from the rafters. wherein the arms 32, 42 f

In the following description, U-shaped troughs are referred to as U-shaped trough arms through use, U-shaped arms XX, 41.

This facilitates the assembly of the eaves, for example, nails through the rear. Moreover, the fitting of the tongue cut in the roof underlay into the eaves trough is facilitated because the tongue then rests on top of the relatively long, rear legs; The relatively long U-shaped arms further facilitate the placement of the tongue, with its usually horizontally cut lower end, into the eaves gutter, which necessarily must be mounted obliquely, without the risk of the tongue it does not reach far enough on one side while it is too long on the other.

The retaining means 2 is shown in a perspective view of FIG. 2. This retaining means 2 comprises a substantially U-shaped elongated profile, which in the following will be referred to as a second profile and which is made of a suitable resilient material so that the two legs letter U are flexible. The retaining means is mounted by pushing it downwards into the U-shape of the X and A profiles, whereby the U-shaped arms of the retaining means get resiliently supported on the rear and front arms of the U-shaped channel elements. However, it should be understood that the elastic support on the U-shaped rear legs will usually not be straight but over the intermediate roofing to be secured. In the following description, the U-shaped arms of the retaining means are referred to as front and rear in accordance with the U-shaped arms of the profiles 3, 4 to which they rest.

As will be seen from FIG. 3, both the retaining means 2 and the first profile 4 are formed with corresponding securing means 22b, 42a for securing the retaining means 2 in the profiles 3, 4.

In the illustrated embodiment, the securing means of the first profile 4 comprises bending or folding 42a of the front U-shaped arm against the inside of the U-shaped element. Correspondingly, the front U-shaped arm of the holding means is bent inward towards the U-shaped area. by suitable rounding for flexural bending or folding 42a. Beyond the rounding, the front U-shaped arm 22 of the holding means 2 is bent in the opposite direction so that it extends substantially in the general direction of the U-shaped arm.

Preferably, the front U-shaped arm 22 of the retaining means is longer than the front U-shaped arms 32, 42 so that it projects outwardly above the profiles. This allows the holding means 2 to be removed again without the use of tools. This is done by pushing the U-shaped front arm 22 inwardly into the U-shape so that the engagement is released. To ensure a good grip with the fingers that allows this to be pushed even when wearing gloves, the front U-shaped arm 22 of the retaining means may end in a smooth bend or fold 22a. This bend leaves no sharp edges, so that the use of the gloves mentioned above is not necessary when handling the gutter, but this use of the gloves may be required by other factors such as weather.

In the telescopic embodiment, it is preferable that the bend or fold 42 and the U-shaped front arm 42 of the first profile 4 also engage the U-shaped front arm 32 of the third profile 3 in addition to the securing means so that the relative displacement can only occur in the longitudinal direction profiles. In the same way, the rear U-shaped arm 31 may have a bend or fold 31a to engage the rear U-shaped arm 41. In the first profile 4. It should be understood, however, that this bend or fold 31a must be directed from the inside of the U-shape.

To provide friction so that the two profiles 3 and 4 are not inadvertently displaced relative to each other, the U-shaped rear arm 41 is formed at the upper end with a small bend 41a so that the upper edge of the U-shaped arm is pressed against the rear side of the rear U-shaped leg 31 of the third profile within the bend or fold 31a.

Figures 4 and 5 show a non-telescopic gutter 1, which gutter can in principle be constructed entirely as the first profile 4 in the telescopic embodiment of Figs. 1 and 3. Similarly, the retaining means is also shown. 2. identical to the embodiment shown in FIGS. 2 and 3.

In addition, it has been illustrated in Figures 4 and 5 that the retaining means 2 is designed in such a way that it can provide roof substrates 5.4, 55 of different thicknesses.

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In Fig. 4, the clamped roofing substrate 54 is, for example, a flexible roofing membrane 54 having a thickness of approximately 1 to 2 mm, while in Fig. 5 a rigid roofing substrate 55 having a thickness of, for example, 5 mm is used.

To enable this to be ensured by different types of roofing with different thicknesses and properties, the rear U-shaped arm 21 of the retaining means 2 is formed with a sharp movement approximately halfway through the height of the U-shaped arm 21 so that the upper end when the retaining means has already been mounted against the roof substrate 54, 55, which is further pressed against the U-shaped rear arm 11 of the gutter. The locking at the upper end of the relatively long, U-shaped rear arm 21 contributes to eliminating the aforementioned problems concerning the placement of the horizontally cut tongue in the inclined gutter.

In an alternative embodiment, the retaining means 2 can be constructed with a substantially U-shaped cross section so that the U-shaped front arm 22 is a mirror image of the U-shaped rear arm 21. In this way, the retaining means 2 can be rotated freely in the longitudinal direction without any influence on its hedging function.

In cases where very thin roof underlay membranes are used, for example TYVEK® foils having a thickness of 0.1 to 0.5 mm, the roof underlay can be embedded in the gutter element so as to follow its U-shape.

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In this way, the U-shaped retaining means can be pressed down into the U-shaped gutter, whereby the roof substrate is clamped between both the front and rear U-shaped arms. . ..

In addition or alternatively, in order to ensure optimum foil fastening, especially in the case of thin foils, the elongate gutter element of the gutter or the retaining means 2 may be formed with a non-slip means. The non-slip means may, for example, be a friction coating on at least a portion of the inner surface of the trough member or at least a portion of the outer surface of the retaining means 2. Another example of constructing the anti-slip means is stamping in the trough element, preferably in the form of small protrusions or friezes.

In the embodiment shown, the profiles 1, 3, 4 are made from 1 mm bent aluminum, or from 0.5 mm to 0.7 mm spring steel or galvanized steel. These material thicknesses are sufficient to create a self-supporting gutter that can even be walked on. By this, it is meant that during the work. a roof structure on which a gutter has already been installed can be walked on the gutter without any risk of the person doing so falling down.

The retaining means according to the illustrated embodiment has a length which, with respect to size, corresponds to the shortest lengths of the profiles, i.e. the length of the profiles of the trough element in the telescopic embodiment, when these profiles have been telescopically fully inserted into each other. The retaining means is preferably made of bent aluminum, spring steel or

galvanized steel with thicknesses corresponding to the thickness of the gutter element and, when mounted, further contributes to the strength of the gutter. A retaining means with a size adjusted to the distance of the respective rafters and thus adapted to the length of the gutter can also be used.

In cases where the strength of the gutter is a less important factor, several shorter holding means may be used instead of one long, elongate retaining means. In particular, they may be holding means with a length that is shorter than the height of the rear U-shaped arm. In practice, they will be more like terminals. Alternatively, in this case, the retaining means may be designed as a resilient clamp 23, as shown in Fig. 6.

Claims (12)

PATENT CLAIMS A gutter for draining water from an opening in a roofing (54, 55) and comprising at least one elongate gutter comprising a first profile (1, 4) with a substantially U-shaped cross-section, characterized in that it comprises at least one retainer means (2) adapted to clamp the roofing (54, 55) within the U-shaped cross-section. Gutter according to claim 1, characterized in that the retaining means (2) comprises a second profile (2) with a substantially U-shaped cross-section, said retaining means (2) being adapted to engage with the gutter element and with the retaining means secured. of the engagement for retaining the roof substrate (54, 55), the roof substrate (54, 55) being clamped between respective U-shaped arms (11, 31, 41; 21) of the trough member and the retaining means (2). A gutter according to claim 2, characterized in that the first U-shaped arm (21) of the holding means (2) is made of a resilient and flexible material to enable the roof substrates (54, 55) of different thicknesses to be clamped. Gutter according to any one of the preceding claims, characterized in that the second U-shaped leg (12, 42) of the gutter element terminates in a bend or fold (12a, 42a) facing the inside of the U-shaped element and the second leg (22). The U-shaped retaining means (2) is designed to be elastically engaged by this bend or fold (12a, 42a). • · · · Gutter according to any one of the preceding claims, characterized in that the second U-shaped arm (22) of the holding means (2) ends with a bend or fold (22a). Gutter according to any one of the preceding claims, characterized in that the respective first legs (11; 21, 31, 41) are longer than the respective second legs (12; 22, 32, 42) of both the channel member and the retaining means (2). A gutter according to any one of claims 1 to 5, characterized in that the first U-shaped leg (22) and the second U-shaped leg of the retaining means are of substantially the same length. A gutter according to any one of the preceding claims, characterized in that the gutter element and / or the retaining means (2) comprise anti-slip means. A gutter according to claim 8, characterized in that. the anti-slip means comprises a coating of anti-slip material. A gutter according to claim 8, wherein the anti-slip means comprises friezes in the gutter. A gutter according to any one of the preceding claims, characterized in that the gutter element forms a telescopic element and therefore also comprises at least one third profile (3) with a substantially U-shaped cross-section, which profile is adapted for displaceable engagement in longitudinal direction. direction with the first profile (4). φ · · · · · φ φφφφ φ φ φ φ φ A method of installing a gutter as defined in any one of the preceding claims in a roof structure comprising at least two rafters and a roofing substrate placed on top thereof, wherein said gutter is mounted without any other support than the at least two rafters. .