EP0008600A1

EP0008600A1 - Rainwater gutter

Info

Publication number: EP0008600A1
Application number: EP78900137A
Authority: EP
Inventors: Olavi Ebeling; Lars SKOGSTRÖM
Original assignee: Aeromator Trading Co AB
Current assignee: Aeromator Trading Co AB
Priority date: 1977-10-03
Filing date: 1979-04-09
Publication date: 1980-03-19
Also published as: FI783011A; DK438278A; GB2023708B; NO783337L; SE7711057L; SE410988B; WO1979000174A1; GB2023708A

Abstract

Agencement de gouttieres de toitures avec inclinaison vers les cotes des gouttieres qui possedent des orifices d'evacuation sous forme d'entonnoirs et de gargouilles. L'objet de l'invention est de produire une gouttiere du type mentionne ci-dessus qui permette de monter une gouttiere correspondant aux caracteristiques particulieres du toit, en fonction du nombre d'entonnoirs, de trop-pleins, etc. et de fournir une gouttiere qui peut etre reparee sans qu'il ne soit necessaire, cependant, de la demonter. L'invention permet egalement un positionnement horizontal precis independamment des differences de hauteur possibles dans la structure porteuse du toit. Les differences de hauteur dans ce domaine doivent etre prises en consideration pour se referer aux faibles variations qui peuvent persister dans le positionnement en hauteur d'une section a une autre, variations comprises dans les tolerances permises de construction. L'invention assure egalement par des moyens simples la protection contre la formation de glace sur les bords des gouttieres. L'invention implique qu'au moins une section (1) au bord exterieur du toit (section exterieure) possede au moins un entonnoir (6) ayant son entree dans le meme plan que le fond (2) de la section, un premier trop-plein (8) relie a un second entonnoir (7) et un second trop-plein (10) place plus haut, relie a une gargouille (9).Arrangement of roof gutters with inclination towards the sides of gutters which have drainage orifices in the form of funnels and gargoyles. The object of the invention is to produce a gutter of the type mentioned above which makes it possible to mount a gutter corresponding to the particular characteristics of the roof, according to the number of funnels, overflows, etc. and provide a gutter that can be repaired without the need, however, to disassemble it. The invention also allows precise horizontal positioning regardless of possible height differences in the load-bearing structure of the roof. Height differences in this area should be taken into account when referring to small variations which may persist in the height positioning from one section to another, variations within the allowable construction tolerances. The invention also provides, by simple means, protection against the formation of ice on the edges of the gutters. The invention implies that at least one section (1) at the outer edge of the roof (outer section) has at least one funnel (6) having its entry in the same plane as the bottom (2) of the section, a first too -full (8) connected to a second funnel (7) and a second overflow (10) placed higher, connected to a gargoyle (9).

Description

ARRANGEMENT AT GUTTERS

This invention relates to an arrangement at gutters in roofs for slope to the sides of the gutters, which have outlets in the form of sinks and spouts.

The object of the present invention is to produce a gutter of the aforesaid kind, by rendering it possible to construct a gutter, which with respect to the number of sinks, overflows etc. corresponds to the special requirements of a roof. A further object of the invention is to provide a gutter, which can be repaired without requiring the gutter to be dismantled. The gutter according to the invention also renders it possible to position the gutter accurately horizontally in a simple manner irrespective of possible differences in height of the carrying structure of the roof. Differences in height in this context are to be understood as the minor variations possibly prevailing in the height position from one truss to the other and lying within the permissible building tolerances. It is further possible with the invention to ensure by simple means the prevention of ice formation at the gutter edges. For achieving the aforesaid objects, the invention has been given the characterizing features defined in the attached claims.

An embodiment of the invention is described in the following in greater detail, with reference to the accompanying drawings, in which

Figs. 1, 2 and 3 are longitudinal sections of three different types of gutter sections, which can be assembled in a suitable order and to a suitable number ao as to form a complete gutter,

Fig. 4 is on an enlarged scale a cross-section of the gutter section according to the invention,

Fig. 5 shows means for jointing two meeting gutter sections, Fig. 6 is a cross-section of an anchoring section intended for erecting the gutter sections,

Fig. 7 shows said anchoring section seen from the side, the Figs. 5-7 being designed on a larger scale than in Figs. 1-3, and Fig. 8 is a perspective view of tie beams with gutter according to the invention. The invention, thus, relates to gutters to be positioned in a roof having its slope inclined to the gutter, whic drains the water via sinks and possible spouts at the end of the gutter at the wall of the building. The drain conduits from the sink can be laid downward through the building or in some other way. In the following description of the invention with reference to the drawings the gutter is presupposed to be positioned in the roof of the building in a per se conventional way.

According to the invention idea, the gutter comprise several gutter sections. Gutter is here to be understood as the extension of a gutter from one side of the building to the other side thereof. Every gutter comprises several types of sections, which are illustrated in Figs. 1-3.

Fig. 1, thus, illustrates an outer section of the gutter, i.e. the section, the end of which is located at the end of the building. The left-hand end of the section according to Fig. 1 is presupposed to be located at the end of the building. The gutter section 1, thus, has an extension in the longitudinal direction rendering the section easy to handle, and its cross-section has the shape of an upwardly open U, as shown on an enlarged scale in Fig. 4. The section 1 comprises a bottom 2, sidewalls 3 and upper edges folded to a flange 4. The sections are assembled one after the other by rubber sleeves and pipe sweeps enclosing connecting pipes 5 projecting from the end wall of every gutter section. The connection between the connecting pipes is illustrated in Fig. 5 and will be described in detail below. The flow area of the connecting pipes is, for example, 20 l/second at a water level of 20 cm in the section. There is, thus, free flow from one section to the other, and the sections are mounted in horizontal position. The outlet from the section 1 is designed as a sink 6, the outflow edge of which lies on the same level as the section bottom 2. A further sink 7 is provided at the end of the section and is formed with an elevated inlet in the form of an elevation ring designated by 8. When, thus, the water level in the gutter section rises above the elevation ring 8, the sink 7 becomes active. As appears from Fig. 1, the gutter section at the left-hand end is provided with a spout 9 , which is connected to a connecting pipe 10 located at the end wall of the gutter section at the upper edge thereof. The spout becomes active as a final safety measure to prevent overflow of the gutter. The dimensions are so chosen that normally only the sinks 6 and 7 manage the draining of the rain water. Beneath the flange edges 4 and along the length of the gutter sections, armoured pipes 12 are attached which project outward at the ends of the gutter sections a distance about as long as the connecting pipes 5. The gutter section 1, however, need not be formed with a projecting end of the armoured pipe 12, because this section constitutes the end of the gutter proper. In Fig. 2 a type, of intermediate gutter section 11 is shown. This section differs from the gutter section 1, in that it shall be connected at both ends to adjacent gutter sections. It, therefore, has identically shaped connecing pipes 5 at each end wall, and the armoured pipes 12 project the same distance at both end walls. At the centre of the gutter section a sink 6 is provided, the outlet edge of which is located in the same plane as the bottom 2 of the gutter section 11. The number of gutter sections of the type 11 to form the gutter depends on the total length of the gutter and on the roof area to be drained as well as on the dimensioning amount of rain at the location of the building. A greater roof area and a greater rain amount, thus, require more sinks 6 and more gutter sections 11. In Fig. 3 a third type of gutter sections 13 is shown, which differs from other gutter sections, and above all from the type 11, only in that no sink 6 is provided. The number of necessary sinks 6 is adapted by means of the gutter sections 11 and 13. The gutter sections l, 11 and 13, thus, are mounted in a suitable number one after the other, and the mounting preferably is made detachable, so that in the event that a gutter section is damaged it can be replaced without requiring the entire gutter to be dismantled. The gutter section 1 constitutes the end section for the gutter and is located at the left-hand of the gutter, and a mirror-inverted gutter sectio relative to the gutter section 1 is positioned at the righthand end of the gutter. The gutter sections 11 and 13 are provided in a suitable number along the extension of the gutter between two gutter sections 1, i.e. between the gutter section 1 and a mirror-inverted gutter section relative to the gutter section 1. Alternatively, at one end of the gutte a gutter section can be positioned which has a closed connecting pipe 5. In Fig. 5 the connection between meeting gutter sections is illustrated. The two connecting pipes 5, thus, are arran ged to meet each other, and a rubber sleeve 14 is pushed over the same. The rubber sleeve is clamped about the connecting pipes 5 by means of a conventional pipe sweep 15. Every pipe section supports its ends against the underlying portion of the roof, for example a truss or rafter, by means of an anchoring section 16, which is common to two meeting ends of two gutter sections. The anchoring section is shown in Fig. 6 and has in principle the same cross-sectional shape as the gutter sections. The dimension, however, is slightly wider, so that the gutter sections can be laid down into the anchoring sections. The anchoring section, thus comprises a bottom portion 17 and sidewalls 18, which latter as shown in Fig. 7 are provided with several rows of holes on different height levels in order to render it possible to simply adapt the connection to every end of the gutter section in question and thereby to obtain a suitable height for this end of the gutter section relative to the other end of the gutter section and in relation to the supporting portion of the underlying roof. The gutter section, thus, shall lie horizontally, but with valid building tolerances this cannot be achieved unless compensation is made for permissible difference in, for example, the height position for different trusses or rafters. The connection between the anchoring section 16 and the gutter section is established by screw connection . Every gutter section has a projecting edge 19 from its sidewalls 3, in which edges at least one hole 20 is provided. In order to obtain a suitable height position for the gutter section, i.e. horizontal position, the hole 20 is connected with a suitable hole 21 in the sidewall 18 of the anchoring section 16. Due to the arrangement of the holes 21 in several rows and on different height levels, a very accurate degree of precision in height position for the gutter sections relative to the roof can be obtained. The lower surface 17 of the anchoring sections, thus, abuts a rafter or truss or other fixed part of the roof.

In Fig. 5 the armoured pipes 12 are not shown, but they are apparent from Fig. 4. The armoured pipes 12 as shown in Figs. 1-3 and mentioned above extend out-ward from the end walls of the gutter sections a distance about as long as the connecting pipes 5. Meeting armoured pipes 12 can be jointed in a suitable way, which is not a part of the present invention. Into the armoured pipes 12 heating cables are introduced for heating the upper edge areas of the gutter sections, because it was found that at a certain snow depth an insulation of the roof is effected whereby underlying heat penetra- tes upward to such an extent that the snow melts on the roof slope near the gutter, but the gutter proper remains sufficiently heated. When therefore the water flows down to the gutter and when there are outdoor degrees below zero, ice formation will take place at the upper edges of the gutter. Finally so much ice ban have been built up that the water no longer flows down into the gutter, but remains lying on the roof where it can be sucked down through capillary holes or the like and thereby give rise to moisture damages. A heating cable inserted in the armoured pipes 12 and heating the gutter prevents the ice formation at the upper edges of the gutters. The heating cable can be controlled automatically, for example so that it is connected at temperatures between +2°C and -5°C and when the depth of the snow cover is, for example, 20 cm. The control, thus, is effected by temperature scanning means and possibly in combination with means for scanning the snow depth.

The cross-section of the gutter sections can be chosen with respect to the special prevailing roof structure and, of course, also with respect to the rain intensity in the place where the building is located. A suitable measure is to choose the cross-section (height and width) that the reservoir capacity of the section in horizontal position depends to two minutes of dimensioning thunderstorm rain for a duration of four minutes. Hereby is ensured that the draining capacity required in the maximum case is satisfactorily met by the gutter section to the outlets in the form of sinks 6 and 7 and spout 9 .

Of the invention described above by way of one embodiment variations can be imagined within the scope of the attached claims. The cross-sectional shape of the gutter sections 3 for example, can be varied, and also the form and location of the connecting pipes 5 can be different. Any optional suitable sinks can be arranged, and there are wide possibilities of varying the number of sinks and gutter sections. The anchoring section 16 above has been stated to have a form corresponding to the cross-sectional shape of the gutter sections, but this is not a necessity. The important feature is that the anchoring section has a form adapted to the edge portions 19, or vice versa. It is to be observed that a pipe section easily can be disengaged from the gutter by loosening the connection at the connecting pipes 5 and thereafter loosening the bolt connections between the edges 19 and the sidewalls 18 of the anchoring section. Of course, also the heating cable must be disconnected between the gutter section to be removed and the remaining part of the gutter.

Claims

Claims;

1. An arrangement at a gutter in a roof for slope to the sides of the gutter, which has outlets in the form of sinks and spouts, each gutter comprising several sections closed at the ends and jointed one after the other with free flow connection, c h a r a c t e r i z e d i n that at least one section (1) terminating at the outeredge pf the roof (outer section) is provided with at least one sink (6) having its inlet in the same plane as the bottom (2) of the section, a first overflow (8) connected to a second sink (7). and a second overflow (10) of higher location connected to a spout (9).

2. An arrangement as defined in claim 1, c h a r a c t r i z e d i n that the flow connections between the sections consist of connecting pipes (5), which are jointed by means of pipe sweeps (15) and elastic rubber sleeves (14), in such a manner, that meeting ends of two sections are supported in common by an anchoring section (17,18).

3. An arrangement as defined in claim 2, c h a r a c t r i z e d i n that the connecting pipes have a flow area delivering 20 1/sec. at a water level of 20 cm in the supply flow section.

4. An arrangement as defined in claim 2, c h a r a c t r i z e d i n that the anchoring section (17,18) has the cross-sectional shape of an upwardly open U, and that the section and the ends of meeting sections can be fixed by means of, for example, screw connections (20,21) in several individual optional height positions.

5. An arrangement as defined in claim 1, c h a r a c t e r i z e d i n that the cross-section of the sections (1) is so chosen (height and width), that the reservoir capacity of the section in horizontal position corresponds to two minutes of dimensioning thunderstorm rain for a duration of four minutes.

6. An arrangement as defined in claim 1, c h a r a c t e r i z e d i n that every section (1) in the vicinity of the longitudinal upper edges is provided with attached armoured pipes (12), which can be jointed with corresponding armoured pipes in adjacent sections, and that into said armoured pipes an electric heating cable can be introduced for heating the edge areas of the section.

7. An arrangement as defined in claim 4, c h a r a c t e r i z e d i n that the anchoring section (17,18) has two sides with a plurality of holes in different height positions and rows, and that the gutter sections have edges projecting from the sides in their longitudinal direction with one or several holes, and the edges are jointed by means of the sides in the anchoring section by screw connections or the like.