SK133098A3 - Bearing element for securing a flat panel-shaped unit to a sloping roof - Google Patents

Abstract

The invention concerns a bearing element (10, 110) for securing a flat panel-shaped unit (40, 140), in particular a photovoltaic unit, to a sloping roof. The bearing element (10, 110) can be fixed to the roof substructure when laid along the crest-gutter line. To produce a bearing element (10, 110) which will allow the unit (40, 140) to be built into a roof covering consisting of small roofing panels or to be incorporated into an existing roof covering without adaptation, it is proposed that the bearing element should be provided with a stay (12) to brace an adjacent (in the crest direction) bearing element (110) lying in the same line of slope at a height above the surface of the overlying panel-shaped unit (40) so as to allow longitudinal displacement.

Description

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a support element for attaching a flat plate structural element, in particular a photoelectric unit, to an inclined roof, the support element being mountable on the support roof structure in a position facing from the ridge to the gutter.

BACKGROUND OF THE INVENTION

Such a support element is known, for example, from DE 94 09 453.9 U1. In this section, the photoelectric modules located in the longitudinal direction of the roof and overlapping each other are described and illustrated. The longitudinal direction is the direction from the roof ridge to the gutter, the transverse direction is the direction parallel to the ridge or gutter. In this case, the supporting elements are wooden profile battens located in the direction from the ridge to the gutter at their ridge end on a wooden roof lattice and at their gutter end also on a wooden bar parallel to the roof batten and located next to it. The wooden bar protrudes above the upper edge of the roof battens by approximately the thickness of the photoelectric module. The wooden profile rails are provided with a recess at their upper surface which extends in the median plane of the wooden rail, so that when arranged at the point of contact of two butt-to-side photoelectric modules, they serve to drain water which has penetrated into the joints. The disadvantage of this system is the necessity of laying additional wooden strips running parallel to the roof battens and of securing the attachment of the photoelectric modules by hooks which prevent the photoelectric modules from being lifted and unwound by strong wind.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a slab-like structural element, in particular that a support element for a planar photoelectric module could be replaced by several commercially available small-format roofing tiles, such that the structural element could be integrated into the roofing of small-format tiles. or it should be possible to retrofit it into the roof covering without adaptation work operations.

SUMMARY OF THE INVENTION

This object is achieved by a support element according to the invention, characterized in that a support is provided on the support on which a longitudinally displaceably adjacent support element is disposed in the same gravity invention, the element being supported in a straight line towards the ridge, spaced above the upper surface of the plate member. which is mounted on the support element.

At least two load-bearing elements arranged in a row parallel to the eaves and laid parallel to each other in the slope lines from the roof ridge to the eaves are required for the installation of the first slab-like structural member. The lowermost support element in one slope is fastened by its end section facing the ridge on the first roof late, while the gutter end section overlaps the roofing tile, which is an adjacent gutter-facing plate, and is attached to the second roof gutter facing away from the gutter. a hook that prevents the wind from lifting. The first structural member is then mounted on the upper side of the lower support member. A further support element, located in the same slope closer to the ridge, is connected in the area of its gutter end section to the support of the lower support element and is mounted on its ridge side on the third roof late from the ridge. In this case, the support element closest to the roof ridge is supported at a distance on the upper surface of the first structural element, so that it can be displaced towards the roof gutter without contacting the first structural element to accommodate different roof pitches.

The sliding member closest to the ridge is moved to a position such that its ridge end section can be secured to the third roof lattice and its gutter end section overlaps the first plate member. The overlapping gutter end section of the support element, which is located at the ridge, thus prevents the first structural element from being lifted away from the lower support element. A second plate-like member is then mounted on two parallel supporting members at the roof ridge, which scaled overlaps the ridge end section of the first plate-like member.

For a photoelectric module with a length of 38 cm and a width of 120 cm, a transverse distance between the two support elements of the row parallel to the eaves is, for example, approximately 60 cm. In the case of a scaled overlap of a plurality of plate-like structural members between the ridge and the eaves, several support elements may be disposed in one slope line.

The length of the support element is greater than the length of the slab structural member, which in turn is longer than the largest overlap length of two adjacent roofing tiles.

The support that transmits loads from the heel end section of the covering support element to the overlapped support element may be formed, for example, as a particularly stable element when placed on the upper side of the support element in the region of its ridge end section. This end section is located above the ridge edge of the plate member.

The production of the support element can be effected by shaping the die-cut sheet metal part if the support is formed as a separate component. The support may be formed, for example, in the form of a bracket of a bent sheet metal, the ends of the arms of the workpiece being fixedly connected to the support element.

Additional protection against the strong wind is not necessary if the upper end section of the support is in the form of a fastener which can be connected to the corresponding fastener on the supported support element facing the ridge by a sliding joint to prevent lifting of the support element facing the ridge.

The connection of the support element to the support is particularly simple if the support is attached to the support element by a snap connection.

In a further preferred embodiment of the invention, the shaped and at the same time longitudinally displaceable joint between the support and the support element can be formed such that the support element is provided at least in the region of its gutter end with a longitudinal groove and the support is provided with a pin-like extension. The pin-like support of the support may extend through the longitudinal slot of an adjacent support member facing the ridge into the interior of the support member. This longitudinal sliding joint prevents the support element from being lifted at its ridge end, but creates a free bearing so that it is possible to permanently compensate for changes in the spacings of the roofing materials.

A preferred embodiment of the support element according to the invention is formed when the support element is in the form of a thin-walled longitudinal profile element, in particular a hollow element. The supporting element is predominantly formed by a C-shaped profile bar in the major part of its length.

The assembly of the panel members is particularly simple if the top of the support member is located at a height above the upper plane of the lower roof substructure that is at least equal to the drainage channel of the side adjacent roofing tile above that plane of the roof substructure, with the roofing tile or tile drainage groove, the drainage channel and the edge of the structural element adjacent to the roofing tile or tile covering edge rim abut against the covering edge of the roof tile from below.

Thus, plate-like structural elements, for example photoelectric modules, can be particularly advantageously integrated into sloping roofing made of conventional flat roofing tiles or concrete or clay. Flat slab roofing elements made of concrete are usually 42 cm long, 33 cm wide and 2.2 cm thick. Their cover width is 30 cm and have a cover length of 31 cm to 34 cm depending on the roof slope. The height of the cover ribs is 1.2 cm above the lower edge, so that approximately 1 cm thick photoelectric modules can be mounted such that their upper surfaces adjoin the upper side of the roofing tiles.

Module mounting and replacement can be done without tools if the support element is provided at its gutter end with a hook-shaped support bracket which surrounds the gutter edge of the plate member. Advantageously, the base of the support bracket formed in a shape approximately lying u is higher than the thickness of the structural member inserted into the support bracket, so that even under deformation or twisting of the support member carrying two identical structural members, no deformation forces are applied to the structural member. The interior of the receiving support may be at least partially filled with a plastically deformable liner.

The module can be moved in the direction of the ridge up to the support of the support element, then it is placed on the support elements and then slid towards the gutter into the support support if the distance between the base of the support support at the gutter end and the support at the ridge end is at least a hook length greater than the length of the plate member. The selection is then performed in reverse order of work operations.

Damage to the underside of the plate member by a fastener that serves to secure the carrier member against strong wind entrainment is avoided if a mounting for a fastener member for attachment to the supporting roof structure is provided at the ridge end of the carrier member. If a screw or bolt is used as the fastening element, it is recommended to provide a recessed seat of the bolt head on the upper side of the support element.

A perfectly accurate fit of the plate member is facilitated if a protrusion is formed at the ridge end of the carrier member at the underside thereof to allow the carrier member to be hung on the lower carrier roof structure. This protrusion acts similarly to the hinge nose of the roofing tile and secures the support element in the longitudinal direction by hooking behind the top of the roof batten facing the ridge. The gutter end of the plate member retains the support of the support member. If the distance between the projection and the base of the support bracket is the same as the distance between the pendant nose and the eaves edge of the adjacent roofing tile, the same geometrical ratios as for adjacent roofing tiles are obtained for the structural members with the supporting element according to the invention. or tiles independently of the pitch of the roofing material and of the actual overlapping lengths of the individual elements.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of the support element of FIG. 2 shows the support element of FIG. 1 in a longitudinal section taken along line II-II in FIG. 3 shows the support element of FIG. 1 in sectional views taken along planes III-III and FIG. 4 is a side view of two fastened support members.

DETAILED DESCRIPTION OF THE INVENTION

Fig. 1 shows a support element 10 made by punching and bending of stainless steel sheet. At its ridge end, a support 12 is formed on which an adjacent identical support element can be mounted. A recess 14 is formed on the upper side of the support element 10 as a mounting 14 for a fastener which serves to secure the support element 10 to the roof batten, for example a recess adapted to receive the head of the fastening screw. The support element 10 is designed as a profile bar with a C-shaped profile in almost its entire length, so that it has a longitudinal groove formed on its underside.

16. In the area of the gutter end, a longitudinal elongated hole 18 is formed on the upper side of the support element 10, through which it is possible to reach the fastening element at the bottom of the further support element. A U-shaped support bracket 20 is provided at the drip end of the support member 10 to support the structural member. This bearing support 20 has a greater width than the base portion of the C-profile support member 10.

Fig. 2 illustrates, in longitudinal section, the location of the support 12 and the support bracket 20. The support bracket 20 extends beyond the end region of the base portion of the C-shaped support member 10. This allows deformation of the support bracket material at high torsional forces due to sagging. this will damage the stored component. The base of the U-shaped support bracket 20 is lined with a strip 22 of resilient material. The support 12 is formed as a bearing bracket formed by folding the sheet metal section and the ends of its two arms are fixed at the ridge end of the support element 10. The bending edge of the support 12 extends transversely to the longitudinal axis of the support element 10. Under support 12 is shown in FIG. 2 shows a projection 24 which can be hooked in a manner similar to the suspension nose of a roofing tile or tile behind a roof batten.

In FIG. 3 is a partial cross-sectional view of the support member 10 taken along the sub-planes III-III of FIG. 1, with the formation of a support bracket 20 in the left half of the figure, and in the right half in FIG. 3, the design of the support 12 is particularly clearly visible. On the underside of the support element 10, protrusions 26 protrude at its ridge end 28. In the region of the lower edge of the support support 20 openings 3.0 are provided which allow water or other liquid to flow.

On the bearing bracket 12, two notches 32, 34 are formed at its two lateral sides at a small distance from its upper edge, extending from the outer edges of the bracket 12 inwards. Thus, the upper end section of the support 12 is in the form of a pin-like extension 38 by simple means, wherein the material between the inner ends of the two notches 32, 34 forms a neck 36 and the wall of the metal support 12 forms pins in its upper edge. Supported adjacent support member having the same physical design as the base support member 10 can be inserted into both notches 32, 34 so that the neck 36 of the support 12 engages by shape engagement into the longitudinal groove 16 and the pin-like extension 38 is housed inside the adjacent support member.

Fig. 4 shows, in longitudinal section, two overlapping planar structural members 40, 140 mounted on support members 10, 110, wherein the support member 110 closer to the ridge is supported on an adjacent support member 10 which is located closer to the eaves. The reference numerals refer to the individual components as in FIG. 1 to 3, only the components of the support member 110 have the original reference numeral increased by 100. At the drip end of the illustrated support member 110, a U-shaped bearing support is formed which surrounds and clamps the drip end of the supported support member 110. it is supported by its ridge end on the roof lattice 42, 142 and is connected to it by a fastening element 44, 144 in this example by a screw. The support element 110 shows an exemplary support of its gutter end, which is the same for all support elements, and which is formed by a longitudinally displaceable fit formed by a support 12 located at the ridge end at the bottom of the supported support element 10.

The support member 110 closer to the ridge is supported at a height that is at least equal to the thickness of the plate member 40. In such an embodiment, the support member 110 may be positioned closer to the ridge when mounted on the lower support member 10 and on the support member. move the plate member 40 positioned towards the eaves until its projection 126 formed at the ridge end abuts the side of the roof batt 142 facing the ridge and its gutter end section overlaps the bottom plate member 40. The upper plate member 140 is positioned closer to the ridge. and supported on the eaves 10, the eaves end is supported by the eaves end portion of the support member 110 closer to the ridge, spaced above the bottom plate member 40, while overlapping the ridge end portion of the bottom plate member 40.

Claims (11)

PATENT CLAIMS A support element (10) for attaching a flat plate component (40), in particular a photoelectric unit, to an inclined roof, the support element (10) being mountable on the roof structure in the direction from the roof ridge to the eaves, a support (10) is provided on the support element (12) on which a longitudinally displaceably supported adjacent support element (110) is disposed in the same slope line toward the ridge, spaced above the upper surface of the structural member that is supported on the support element (10) ). Support element according to claim 1, characterized in that the support (12) is located on the upper side of the support element (10) in its end region which faces the ridge. Support element according to claim 1 or 2, characterized in that the support (12) is designed as a separate component. Support element according to claim 3, characterized in that the support (12) can be fastened to the support element (10) by snap-on coupling elements. Support element according to one of Claims 1 to 4, characterized in that it is provided at least in the region of its gutter end with a longitudinal groove (16) and the support (12) is provided with a collar extension 6. A support element according to claim 1, characterized in that it is a profile bar. The support element according to (38). Claims 1 to 5, formed in the form of thin-walled claims 1 to 6, characterized in that the upper side of the support element (10) is mounted at a height above the upper plane of the lower roof structure, at least equal to the height of the drainage channel of the adjacent roofing boards above this plane of the load-bearing roof structure. Support element according to one of Claims 1 to 7, characterized in that it is provided at its gutter end with a hook-like support (20) for clamping the gutter end of the plate component (40). Support element according to claim 8, characterized in that the distance between the base of the support bracket (20) at the gutter end and the support (12) at the ridge end of the support element (10, 110) is greater by at least the hook length of the support bracket (20) such as the length of the panel member (40). Support element according to claims 1 to 9, characterized in that at the ridge end of the support element (10) a bearing (14) is provided for a fastening element (44) for fastening to the roof structure (42). Support element according to claims 1 to 10, characterized in that a protrusion (26, 28) is formed on the ridge end of the support element (10) on its underside to enable it to be hung on the roof structure (42).