EP0699258B1 - Abdeckblechstreifen - Google Patents

Abdeckblechstreifen Download PDF

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Publication number
EP0699258B1
EP0699258B1 EP94915032A EP94915032A EP0699258B1 EP 0699258 B1 EP0699258 B1 EP 0699258B1 EP 94915032 A EP94915032 A EP 94915032A EP 94915032 A EP94915032 A EP 94915032A EP 0699258 B1 EP0699258 B1 EP 0699258B1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
metal covering
areas
covering strips
narrow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94915032A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0699258A1 (de
Inventor
Karl-Heinz Hofmann
Frank Wojtalewicz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monier Roofing Components GmbH
Monier Roofing GmbH
Original Assignee
Braas GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4316437A external-priority patent/DE4316437A1/de
Application filed by Braas GmbH filed Critical Braas GmbH
Publication of EP0699258A1 publication Critical patent/EP0699258A1/de
Application granted granted Critical
Publication of EP0699258B1 publication Critical patent/EP0699258B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0445—Drainage channels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/40—Slabs or sheets locally modified for auxiliary purposes, e.g. for resting on walls, for serving as guttering; Elements for particular purposes, e.g. ridge elements, specially designed for use in conjunction with slabs or sheets
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2221/00—Treating localised areas of an article
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0445—Drainage channels
    • E04D2013/045—Drainage channels on inclined roofs
    • E04D2013/0454—Drainage channels on inclined roofs at the intersection of roof surfaces, e.g. roof valleys

Definitions

  • the invention relates to a cover strip, in particular for a building or the like, the cover strip having different material properties in at least one narrow region which preferably runs in the longitudinal direction than in the adjacent regions of the cover strip.
  • Cover strips of this type are used, for example, to cover the gutter in the throat between two meeting inclined surfaces of a roof or to cover the edges on a component projecting beyond the roof surface.
  • the strip used for covering must be folded according to the on-site conditions. In order to produce a clean bending edge, a folding device is required on the construction site or in the workshop.
  • a cover strip is known from DE-A-38 28 297, in which at least one narrow region, preferably running in the longitudinal direction, has a lower hardness and greater flexibility than the regions of the cover strip adjoining it.
  • the cover strip consists of an essentially stiff, extruded, profiled plastic sheet which has areas of different hardness and flexibility which are produced over the cross-sectional width by means of coextrusion of molding compounds which harden differently.
  • the invention has for its object to provide a cover strip made of sheet metal, which is easy to manufacture, which is easily bent in one or more predetermined, essentially linear narrow areas without tools and is otherwise stiff.
  • the cover strip is designed as a band made of a uniform metallic raw material, preferably of aluminum, wherein the narrow area has a structure with lower strength and higher elongation at break than the adjacent areas.
  • the cover strip according to the invention is particularly well suited for covering a gutter if at least three narrow areas running in the longitudinal direction are provided with a material with lower strength and higher elongation at break than in the other areas, one in the longitudinal center and one adjacent to the respective side edge . If a further bevel is required in the edge area, additional narrow areas running in the longitudinal direction can be provided with a structure with lower strength and higher elongation at break than in the other areas.
  • a particularly simple production is possible if areas with different structures, in which the sheet metal can be bent differently, are present in a strip made of uniform metallic raw material by cold forming or soft annealing, the narrow areas being a structure with lower strength and higher elongation at break than have the adjacent areas.
  • the metal of the cover strip is given a structure with high strength by cold working, except in one or more narrow areas.
  • the narrow areas represent predetermined bending lines.
  • the cover strip can be supplied in a flat form, so that little space is required for storage and transport.
  • a bend of the cover strip according to the invention can be carried out very easily and without a folding tool on the construction site by placing the cover strip along the predetermined bending line on the edge of a table or board and bending the protruding stiffened area by hand.
  • Any metal is suitable as a uniform raw material for the production of the cover strip according to the invention, in which cold deformation increases the yield strength to at least about twice the value and the elongation at break can be reduced to about half or less.
  • Aluminum is particularly suitable as a metal, the structure of which can be easily changed by cold working.
  • Tensile strength [kp / mm 2 ] 11 ... 14 13 ... 18 4 ... 7 7 ... 9 Yield strength [kp / mm 2 ] 10 ... 13 10 ... 15 1.5..4 2 ... 4 Brinell hardness [kp / mm 2 ] 25 ... 30 33 ... 40 15 ... 19 18 ... 23 Elongation at break [%] 5 ... 4 8 ... 4 55 ... 30 35 ... 30
  • annealed aluminum has less than half tensile strength, less than one third yield strength, about half a Brinell hardness, and seven times elongation at break compared to cold worked aluminum.
  • a corrosion-protective layer is provided at least on the upper side of the cover strip.
  • the layer can consist of paint or plastic, blackening is also possible. If the cover strip is made of aluminum, the surface can be anodized.
  • a coated cover strip can be used universally in the roof area if the top and bottom are coated in different colors, so that on the construction site the bend can be made so that the colored side of the roof covering comes to rest on top.
  • cold-formed metal sheet can be used on the one hand as the raw material, which has one or more narrow areas with a structure produced by targeted heating with lower strength and higher elongation at break.
  • a change in structure due to heating can occur 300 ° C to 460 ° C can be reached.
  • the area containing a structure with reduced strength must be as narrow as possible. This can be achieved, for example, by heating by flame, radiation, electrical resistance heating, inductive heating or plasma. Heating by radiation can take place, for example, with laser beams or electron beams.
  • the raw material of the cover strip can also be soft metal sheet which, in broad areas adjacent to one or more narrow areas, has a structure with increased strength produced by cold working.
  • the cold forming does not take place over the entire width of the raw material strip, but only partially.
  • the cold-formed surface is usually also enlarged, albeit only slightly. This results in tensions in relation to the untreated narrow areas, which lead to an uneven, dented surface.
  • the increase in the area can be compensated for by appropriate profiling of the surface if the cover strip has beads which run essentially in the transverse direction and is essentially flat in the narrow area or areas. This can be achieved in that beads are embossed only in the areas of the originally flat cover strip to be stiffened with embossing dies or with profile rollers.
  • Soft aluminum is particularly suitable as the raw material for the cover strip, in particular with a thickness of less than 1 mm. When embossing the beads, soft aluminum is hardened as a result of structural changes, so that the stiffening is achieved both by this and also by the shape.
  • the beads can have a sawtooth-shaped profile in longitudinal section.
  • the short sections of the profile are arranged so that they slope down towards the eaves, so that the surface forms a kind of staircase on which rainwater can drain off easily.
  • the rigidity can be increased if the beads have a trapezoidal profile in longitudinal section.
  • the beads can be embossed alternately to the top and bottom, so that there is an approximately wavy profile in longitudinal section.
  • a particularly high rigidity is achieved if the beads are arranged adjacent to one another and the trapezoidal angle is less than 45 °, the depth of the profile is less than 5 mm, preferably about 3 mm, and the bead spacing is less than 50 mm, preferably about 16 mm.
  • a section of a cover strip 10 according to the invention for covering a gutter is shown in plan view.
  • the cover strip 10 consists of cold-rolled aluminum with a purity of 99.5%.
  • the cover strip 10 is 2000 mm long, 500 mm wide and 0.7 mm thick.
  • the cover strip 10 has a narrow region 12 which extends over the entire length and whose material contains a structure with reduced strength.
  • each have two structures that also run in the longitudinal direction with a reduced structure Narrow lateral areas 14 and 16 and 18 and 20 containing strength are arranged at a distance of 27 mm and 17.5 mm from the longitudinal edges 22 and 24 in order to enable easy folding during assembly.
  • the narrow areas 12, 14, 16, 18 and 20 containing a structure with reduced strength are approximately 5 mm wide.
  • the material has a structure with the original structure produced by cold rolling with high strength.
  • FIG. 2 shows a cover strip 110 corresponding to the cover strip 10 from FIG. 1, which is coated on its upper side with a plastic layer 111.
  • the cover strip 110 In its longitudinal center, the cover strip 110 is bent upward in a narrow region 112 containing a structure with reduced strength at an angle corresponding to a gutter of a roof.
  • the cover strip 110 is bent at a distance of 27 mm parallel to its longitudinal edges 122 and 124, a structure with reduced strength containing narrow regions 114 and 116 approximately perpendicular to the top and at a distance of 17.5 mm parallel to its longitudinal edges 122 and 124 extending narrow regions 118 and 120, which contain a structure with reduced strength, are bent approximately at right angles to the outside.
  • the edge areas 134, 136 are placed on slats 138, 140 mounted parallel to the throat, fastened with adhesive clips according to the technical rules and covered by roof covering plates 142, 144.
  • FIG. 3 shows a cover strip 210 corresponding to the cover strip 10 from FIG. 1, which is coated on its upper side with a plastic layer 211.
  • the cover strip 210 is bent upward in a narrow region 212 containing a structure with reduced strength at an angle corresponding to a gutter of a roof.
  • the cover strip 210 is parallel at a distance of 27 mm to its longitudinal edges 222 and 224, a narrow narrow structure 214 and 216 containing a structure with reduced strength folded over 180 ° parallel to the top and at a distance of 17.5 mm parallel to its longitudinal edges 222 and 224, a structure with reduced strength containing narrow regions 218 and 220 near the edge, bent upward by approximately 45 °.
  • the folded areas 230, 232 are fastened to the throat-forming planks 238, 240 using adhesive clips and covered by roof covering plates 242, 244.
  • cover strip 310 shows a detail of a cover strip 310 according to the invention in a profiled design for covering a gutter in plan view.
  • the cover strip 310 consists of originally soft aluminum sheet 0.7 mm thick with a purity of 99.5%.
  • the cover strip 310 is 2000 mm long and 500 mm wide.
  • cover strip 310 has a central, flat, narrow region 312 of 5 mm in width, which extends over the entire length.
  • a flat lateral narrow region 314 and 316 which also runs in the longitudinal direction, is arranged at a distance of 27 mm from the adjacent longitudinal edge 318 and 320, respectively, in order to enable easy folding during assembly.
  • the lateral narrow areas 314 and 316 are approximately 12 mm wide.
  • Trapezoidal profiled areas 326, 328, 330 and 332 are arranged between the narrow areas 312, 314 and 316 and towards the longitudinal edges 318, 320, the material of which, compared to the narrow areas 312, 314 and 316, has a structure with a higher profile which is produced by cold forming during profiling Has strength.
  • the cover strip 310 has a profile with a trapezoidal angle of 45 °, a depth of the profile of 3 mm and a bead spacing of 16 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Sustainable Development (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Building Environments (AREA)
EP94915032A 1993-05-17 1994-05-10 Abdeckblechstreifen Expired - Lifetime EP0699258B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4316437 1993-05-17
DE4316437A DE4316437A1 (de) 1992-11-14 1993-05-17 Abdeckblechstreifen
PCT/DE1994/000559 WO1994026997A1 (de) 1993-05-17 1994-05-10 Abdeckblechstreifen

Publications (2)

Publication Number Publication Date
EP0699258A1 EP0699258A1 (de) 1996-03-06
EP0699258B1 true EP0699258B1 (de) 1997-09-03

Family

ID=6488271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94915032A Expired - Lifetime EP0699258B1 (de) 1993-05-17 1994-05-10 Abdeckblechstreifen

Country Status (10)

Country Link
EP (1) EP0699258B1 (pl)
AT (1) ATE157730T1 (pl)
CZ (1) CZ286871B6 (pl)
DK (1) DK0699258T3 (pl)
ES (1) ES2106532T3 (pl)
FI (1) FI955540A7 (pl)
HU (1) HU214372B (pl)
NO (1) NO305611B1 (pl)
PL (1) PL184916B1 (pl)
WO (1) WO1994026997A1 (pl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19912134A1 (de) * 1999-03-18 2000-09-21 Kurt Schade Gmbh & Co Ing Abdeckung für eine Kehlrinne in einem Dach
DE10002428A1 (de) 2000-01-20 2001-07-26 Kloeber Gmbh & Co Kg In eine Kehlform biegbarer Streifen
FR2956678B1 (fr) * 2010-02-24 2012-05-18 Daniel Cauquil Noue de toiture
US10024060B2 (en) 2016-06-28 2018-07-17 Dryflekt, Inc. Valley flashing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1251269A (pl) * 1969-05-23 1971-10-27
US4449333A (en) * 1982-06-18 1984-05-22 Stratton David G Valley strip for roof structure
DE3511089A1 (de) * 1984-10-24 1986-04-24 Oskar 4354 Datteln Fleck Verkleidungselement fuer eine dachkehle
DE3828297C2 (de) * 1988-06-14 1994-01-20 Alfons Knoche Abdeckungselement für Kehlrinnen
US5115603A (en) * 1990-09-20 1992-05-26 Roof-Flex Roof valley flashing including expansion joint

Also Published As

Publication number Publication date
PL184916B1 (pl) 2003-01-31
WO1994026997A1 (de) 1994-11-24
ES2106532T3 (es) 1997-11-01
HU214372B (hu) 1998-03-30
NO305611B1 (no) 1999-06-28
ATE157730T1 (de) 1997-09-15
CZ300295A3 (en) 1996-05-15
HUT72961A (en) 1996-06-28
FI955540A0 (fi) 1995-11-16
DK0699258T3 (da) 1998-04-14
NO954625D0 (no) 1995-11-16
HU9503262D0 (en) 1996-01-29
NO954625L (no) 1996-01-12
FI955540A7 (fi) 1995-11-16
PL311693A1 (en) 1996-03-04
CZ286871B6 (en) 2000-07-12
EP0699258A1 (de) 1996-03-06

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