EP0475471A1 - Method for the production of cladding elements - Google Patents

Method for the production of cladding elements Download PDF

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Publication number
EP0475471A1
EP0475471A1 EP91201925A EP91201925A EP0475471A1 EP 0475471 A1 EP0475471 A1 EP 0475471A1 EP 91201925 A EP91201925 A EP 91201925A EP 91201925 A EP91201925 A EP 91201925A EP 0475471 A1 EP0475471 A1 EP 0475471A1
Authority
EP
European Patent Office
Prior art keywords
elements
overlap
face
shoulder
moulds
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.)
Granted
Application number
EP91201925A
Other languages
German (de)
French (fr)
Other versions
EP0475471B1 (en
Inventor
Jean Adrien Monod De Froideville
Arnest Christiaan Desiré Sorber
Jan Laurens Van Den Berg
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.)
RBB DAKPANNEN BV
Original Assignee
RBB DAKPANNEN BV
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Publication date
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Publication of EP0475471A1 publication Critical patent/EP0475471A1/en
Application granted granted Critical
Publication of EP0475471B1 publication Critical patent/EP0475471B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/29—Producing shaped prefabricated articles from the material by profiling or strickling the material in open moulds or on moulding surfaces

Definitions

  • the invention relates in the first instance to a method for the production of cladding elements, in particular roofing tiles or outside wall cladding elements, made from a hardenable plastic mass, comprising:
  • the advantage of it is that with relatively great production capacity a large stream of cladding elements can be produced.
  • the bottom face of the elements in the known method is formed by the bottom of the moulds and the top face of the elements is an extrusion face.
  • the ready elements will overlap each other on a sloping roof or on an outside wall in such a way that a shoulder is visible at the position of the overlap.
  • a need has become apparent for tiles and outside wall cladding elements which can form a watertight clad surface by means of overlap wings without said overlapping shoulders being visible.
  • the absence of overlapping shoulders produces an aesthetic advantage.
  • the object of the invention is to provide a method of the type mentioned in the preamble by means of which cladding elements which can form a watertight clad surface without visible overlapping shoulders are produced.
  • the method is characterized in that
  • the method has the advantage that the visible face of the elements can be made of any conceivable shape, a flat face often being preferable.
  • the invention gives the possibility to cover the bottom of each mould by a plate of plastics material, stainless steel or ceramic material before the plastic mass is fed into the mould, said plate becoming attached to said mass.
  • each mould is provided with a pattern of ribs and/or grooves.
  • the invention also relates to a cladding element, in particular roofing tile of which the top face has an overlap wing for the lengthwise overlap with a part of a corresponding tile lying above it and an overlap wing for transverse overlap with a part of a corresponding tile lying next to it, and of which the bottom face has an overlap wing for transverse overlap with a part of a corresponding tile lying next to it, while at the transition between the visible face and the overlap wing for lengthwise overlap a shoulder is present, the height of said shoulder essentially corresponding to the thickness of the bottom edge of the tile.
  • the element is characterized in that the total thickness of the tile at a position of said shoulder is greater than the thickness of the bottom edge of the tile and the tile thickness gradually (without any shoulder) decreases from the shoulder towards the bottom edge.
  • bottom face of such an element can be formed by an extrusion face, such an element can be manufactured by the method of the invention.
  • the invention also relates to a roofing tile and a cladding element.
  • the thickness (p) of said bottom edge 1 a corresponding essentially to the height (q) of a shoulder 6 forming the division between the visible face 1 and the overlap wing 2.
  • the thickness (s) of an element at the position of the shoulder 6 is greater than the thickness (p) of the bottom edge.
  • the visible faces of the elements lying one above the other can form a shoulderless flat face.
  • a wing 3 of the elements following one another in the transverse direction always rests in such a way on a wing 5 that said flat face is not interrupted by a shoulder or projection.
  • Figure 5 shows that a plastic mass is placed on a row of moulds 8, moving continuously or batchwise in the direction of the arrow, by a feed device which is known per se, and which comprises a supply tank 9, a rotary distribution and pressure impeller wheel 10, a scraper 11, and a rotary shut-off roller 12 placed between the scraper 11 and the tank 9.
  • a feed device which is known per se, and which comprises a supply tank 9, a rotary distribution and pressure impeller wheel 10, a scraper 11, and a rotary shut-off roller 12 placed between the scraper 11 and the tank 9.
  • top face of the ready elements which is the face shown in Figure 1
  • bottom face of the ready elements shown in Figure 2 is an extrusion face determined by the shape of the edge of the scraper 11.
  • the mass deposited on the row of moulds is divided into pieces by knives 15, the length of which pieces corresponds to that of the moulds 8. Finally, the elements formed are given the opportunity to set. If the plastic material is made of concrete material, the setting takes place by itself. In the case of a ceramic mass the elements will be dried and baked in an oven. A hardenable plastic material is also one of the possibilities.
  • a fixing hole 13 can be provided in the elements.
  • the overlap wings 2, 3 and 5 can be provided with channels 14 or corrugations which can improve the drainage of any leaking water.
  • the visible face of the cladding elements can be made of any desired shape and that, despite that, the elements can be produced in a continuous process with great production capacity.
  • the height (q) of the shoulder 6 is made approximately equal to the thickness (p) of the bottom edge of the elements, it is possible to obtain a roofing or outside wall cladding without visible overlapping edges. It is possible to dispense with the use of battens and tile laths on the roof boarding of a sloping roof.
  • each mould could be covered by a plate of plastics material, stainless steel or ceramic material before the plastic mass is fed into the mould.
  • the plate will adhere to or becomes attached to the mass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Finishing Walls (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

5n7 For the production of roofing tiles or outside wall cladding elements a hardenable plastic mass is fed into a continous row of moulds (8), during which the material feed (9-12), and the row of moulds (8) move continuously or badge-wise relative to each other, viewed in the lengthwise direction of the row. The mass lying in and on the moulds is leveled off in such a way that the upper face of the mass is an extrusion face and the elements are hardened. In order to be able to form a watertight clad surface by the elements without visible overlapping shoulders the shape of the bottom of the elements to be formed is determined by the extrusion face while in the bottom face an overlap wing for the transverse overlap of the elements if formed, and the top face (1) of the ready cladding elements to be formed is formed in such a way on the bottom face of the moulds (8) that in the top face a first shoulder (6) forming the division between the visible face (1) of the elements and an overlap (2) for the lengthwise overlap of the elements is produced, and a second shoulder forming the division between the visible face (1) and an overlap wing (3) for the transverse overlap of the elements is produced.

Description

  • The invention relates in the first instance to a method for the production of cladding elements, in particular roofing tiles or outside wall cladding elements, made from a hardenable plastic mass, comprising:
    • - feeding the plastic mass into a continuous row of moulds, during which the material feed and the row of moulds move continuously or batchwise relative to each other, viewed in the lengthwise direction of the row;
    • - levelling off the mass lying in and on the moulds in such a way that the upper face of the mass is an extrusion face; and
    • - hardening the elements.
  • Such a method is disclosed in US-A-2531574.
  • The advantage of it is that with relatively great production capacity a large stream of cladding elements can be produced. The bottom face of the elements in the known method is formed by the bottom of the moulds and the top face of the elements is an extrusion face. The ready elements will overlap each other on a sloping roof or on an outside wall in such a way that a shoulder is visible at the position of the overlap. In the building trade a need has become apparent for tiles and outside wall cladding elements which can form a watertight clad surface by means of overlap wings without said overlapping shoulders being visible. In particular, in the case of roofs formed from tiles with a flat visible face, the absence of overlapping shoulders produces an aesthetic advantage.
  • The object of the invention is to provide a method of the type mentioned in the preamble by means of which cladding elements which can form a watertight clad surface without visible overlapping shoulders are produced.
  • According to the invention, the method is characterized in that
    • - the bottom face of the ready cladding elements to be formed is determined as said extrusion face, while in said bottom face an overlap wing for the transverse overlap of the elements is formed;
    • - the top face of the ready cladding elements to be formed is formed in such a way on the bottom face of the moulds that in said top face a first shoulder forming the division between the visible face of the elements and an overlap wing for the lengthwise overlap of the elements is produced, and a second shoulder forming the division between the visible face and an overlap wing for the transverse overlap of the elements is produced.
  • Apart from a large production capacity of the elements which can form a shoulderless external surface, the method has the advantage that the visible face of the elements can be made of any conceivable shape, a flat face often being preferable.
  • As the upper face of the elements is determined by the moulds, the invention gives the possibility to cover the bottom of each mould by a plate of plastics material, stainless steel or ceramic material before the plastic mass is fed into the mould, said plate becoming attached to said mass.
  • An other possiblity is that the bottom face of each mould is provided with a pattern of ribs and/or grooves.
  • The invention also relates to a cladding element, in particular roofing tile of which the top face has an overlap wing for the lengthwise overlap with a part of a corresponding tile lying above it and an overlap wing for transverse overlap with a part of a corresponding tile lying next to it, and of which the bottom face has an overlap wing for transverse overlap with a part of a corresponding tile lying next to it, while at the transition between the visible face and the overlap wing for lengthwise overlap a shoulder is present, the height of said shoulder essentially corresponding to the thickness of the bottom edge of the tile.
  • Such an element is disclosed in DE-C-19157.
  • According to the invention the element is characterized in that the total thickness of the tile at a position of said shoulder is greater than the thickness of the bottom edge of the tile and the tile thickness gradually (without any shoulder) decreases from the shoulder towards the bottom edge.
  • As the bottom face of such an element can be formed by an extrusion face, such an element can be manufactured by the method of the invention.
  • The invention also relates to a roofing tile and a cladding element.
  • The invention will now be explained in greater detail with reference to the figures.
    • Figure 1 shows a perspective view of the top side of the cladding elements obtained by the method according to the invention.
    • Figure 2 shows a perspective view of the bottom side of the element according to Figure 1.
    • Figure 3 shows a cross-section through two cladding elements connecting to each other.
    • Figure 4 shows a cross-section through a part of a sloping roof clad with roofing tiles according to the invention.
    • Figure 5 shows a schematic view of the production process in cross-section.
    • Figure 6 shows a number of possible top views of the cladding elements according to the invention.
    • The cladding elements shown in Figures 1 to 4 for a roof or outside wall have at the top side (see Figure 1) a visible face 1 (which is the face remaining visible after fitting of the elements), an overlap wing 2 for the lengthwise overlap and an overlap wing 3 for the transverse overlap. At the bottom side (see Figure 2) an overlap wing 5 adjoins the bottom face 4 for the transverse overlap.
    • Figure 3 shows how two elements overlap each other in the lengthwise direction:
  • the bottom edge 1 a of the next element rests on the overlap wing 2, the thickness (p) of said bottom edge 1 a corresponding essentially to the height (q) of a shoulder 6 forming the division between the visible face 1 and the overlap wing 2. The thickness (s) of an element at the position of the shoulder 6 is greater than the thickness (p) of the bottom edge.
  • As can be seen from Figures 3 and 4, the visible faces of the elements lying one above the other can form a shoulderless flat face. A wing 3 of the elements following one another in the transverse direction always rests in such a way on a wing 5 that said flat face is not interrupted by a shoulder or projection.
  • Figure 5 shows that a plastic mass is placed on a row of moulds 8, moving continuously or batchwise in the direction of the arrow, by a feed device which is known per se, and which comprises a supply tank 9, a rotary distribution and pressure impeller wheel 10, a scraper 11, and a rotary shut-off roller 12 placed between the scraper 11 and the tank 9.
  • It is essential for the invention that the top face of the ready elements, which is the face shown in Figure 1, is formed on the bottom of the moulds 8, while the bottom face of the ready elements shown in Figure 2 is an extrusion face determined by the shape of the edge of the scraper 11.
  • The mass deposited on the row of moulds is divided into pieces by knives 15, the length of which pieces corresponds to that of the moulds 8. Finally, the elements formed are given the opportunity to set. If the plastic material is made of concrete material, the setting takes place by itself. In the case of a ceramic mass the elements will be dried and baked in an oven. A hardenable plastic material is also one of the possibilities. A fixing hole 13 can be provided in the elements. The overlap wings 2, 3 and 5 can be provided with channels 14 or corrugations which can improve the drainage of any leaking water.
  • It is important that the visible face of the cladding elements can be made of any desired shape and that, despite that, the elements can be produced in a continuous process with great production capacity.
  • By making the height (q) of the shoulder 6 approximately equal to the thickness (p) of the bottom edge of the elements, it is possible to obtain a roofing or outside wall cladding without visible overlapping edges. It is possible to dispense with the use of battens and tile laths on the roof boarding of a sloping roof.
  • Various variants of the shape of the cladding elements and of the production are possible within the scope of the main claim.
  • To give the upper face of the tiles or cladding elements a special appearance, the bottom of each mould could be covered by a plate of plastics material, stainless steel or ceramic material before the plastic mass is fed into the mould. The plate will adhere to or becomes attached to the mass. To give the upper face of the elements an attractive appearance it could also be possible to provide the bottom face of each mould with a pattern of ribs and/or grooves.

Claims (5)

1. Method for the production of cladding elements, in particular roofing tiles or outside wall cladding elements, made from a hardenable plastic mass, comprising:
- feeding the plastic mass into a continuous row of moulds (8), during which the material feed (9 to 12) and the row of moulds (8) move continuously or batchwise relative to each other, viewed in the lengthwise direction of the row;
- levelling off the mass lying in and on the moulds in such a way that the upper face of the mass is an extrusion face; and
- hardening the elements,

characterized in that
- the shape of the bottom face (4) of the ready cladding elements to be formed is determined by said extrusion face, while in said bottom face an overlap wing (5) for the transverse overlap of the elements is formed;
- and in that the top face (1) of the ready cladding elements to be formed is formed in such a way on the bottom face of the moulds (8) that in said top face a first shoulder (6) forming the division between the visible face (1) of the elements and an overlap (2) for the lengthwise overlap of the elements is produced, and a second shoulder forming the division between the visible face (1) and an overlap wing (3) for the transverse overlap of the elements is produced.
2. Method according to Claim 1, characterized in that the above-mentioned first shoulder (6) is of a height (p) corresponding essentially to the thickness (q) of the edge (1 a) of the elements lying opposite said shoulder - viewed over the visible face,
- in that the thickness (s) of the elements at the position of said first shoulder (6) is greater than the thickness (q) of the elements at the above-mentioned edge (1 a) of the elements lying opposite the shoulder,
- and in that, viewed from the top, the shape of the above-mentioned first shoulder (6) corresponds essentially to the shape of the above-mentioned edge (1 a) of the elements lying opposite said shoulder.
3. Method according to claim 1 or 2, characterized in that the bottom of each mould is covered by a plate of plastics material, stainless steel or ceramic material before the plastic masss is fed into the moulds, said plate becoming attached to said mass.
4. Method according to claims 1 or 2, characterized in that the bottom face of each mould is provided with a pattern of ribs and/or grooves.
5. Cladding element, in particular roofing tile of which the top face has an overlap wing (2) for the lengthwise overlap with a part of a corresponding tile lying above it and an overlap wing (3) for transverse overlap with a part of a corresponding tile lying next to it, and of which the bottom face has an overlap wing (4) for transverse overlap with a part of a corresponding tile lying next to it, while at the transition between the visible face (1) and the overlap wing (2) for lengthwise overlap a shoulder (6) is present, the height (q) of said shoulder (6) essentially corresponding to the thickness (p) of the bottom edge (1 a) of the tile, characterized in that the total thickness of the tile at a position of said shoulder (6) is greater than the thickness of the bottom edge (1 a) of the tile and the tile thickness gradually (without any shoulder) decreases from the shoulder (6) towards the bottom edge (1 a).
EP91201925A 1990-08-29 1991-07-22 Method for the production of cladding elements Expired - Lifetime EP0475471B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9001895A NL9001895A (en) 1990-08-29 1990-08-29 METHOD FOR MANUFACTURING CLADDING ELEMENTS, IN PARTICULARLY ROOF TILES OR FAÇADE CLADDING ELEMENTS, FROM A HARDENABLE PLASTIC MASS, AND ROOF TILE AND FAÇADE CLADDING ELEMENT.
NL9001895 1990-08-29

Publications (2)

Publication Number Publication Date
EP0475471A1 true EP0475471A1 (en) 1992-03-18
EP0475471B1 EP0475471B1 (en) 1994-04-20

Family

ID=19857592

Family Applications (1)

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EP91201925A Expired - Lifetime EP0475471B1 (en) 1990-08-29 1991-07-22 Method for the production of cladding elements

Country Status (6)

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EP (1) EP0475471B1 (en)
AT (1) ATE104585T1 (en)
DE (1) DE69101761T2 (en)
DK (1) DK0475471T3 (en)
ES (1) ES2044807T3 (en)
NL (1) NL9001895A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283514A (en) * 1993-11-05 1995-05-10 Forticrete Ltd Roof tiles
EP2711148A1 (en) * 2012-09-24 2014-03-26 Weser Method and facility for manufacturing wall tiles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2272117B1 (en) * 2004-03-10 2008-02-01 Juan Jose Martinez De Gracia MACHINE FOR THE MANUFACTURE OF BRICKS, TILES AND SIMILAR.

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE93888C (en) *
DE19157C (en) * J. MÖNCH & COMP, in Gerstungen Innovations in roof tiles
NL65163C (en) *
DE21053C (en) * A. DEMMER in Eisenacb Innovations in the facing bricks patented under P. R. 16823
DE180176C (en) *
US1688405A (en) * 1926-10-02 1928-10-23 Washington A Stoehr Wall-veneering material
US2078039A (en) * 1936-08-05 1937-04-20 Stoner Paul Self-sealing siding
US2246987A (en) * 1937-10-23 1941-06-24 United States Gypsum Co Continuous molding apparatus
DE733390C (en) * 1936-09-26 1943-03-25 Carl Ludowici Komm Ges Auf Akt Roof covering made of ribbed roof tiles for camouflage purposes
US2531574A (en) * 1949-11-09 1950-11-28 Gus W Lang Machine for making cement roofing tile
GB780848A (en) * 1953-10-20 1957-08-07 Donald Mcknight Improvements in and relating to roofing tiles and the like
DE1584726A1 (en) * 1964-11-25 1970-07-23 Heinrich Schaper Rolling machine for the production of concrete roof tiles
FR2379361A1 (en) * 1977-02-02 1978-09-01 Kubota Ltd ROOF PANEL MOLDING DEVICE WITH A GRADINAL PART
DE2737007A1 (en) * 1977-08-17 1979-02-22 Fritz Schauffele Multi-purpose composite building slab - has reinforced bonded layer of resin, sand and aggregate, and plastics coating
FR2524925A1 (en) * 1982-04-08 1983-10-14 Marley Tile Ag PERFECTED ROOF TILE

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE93888C (en) *
DE19157C (en) * J. MÖNCH & COMP, in Gerstungen Innovations in roof tiles
NL65163C (en) *
DE21053C (en) * A. DEMMER in Eisenacb Innovations in the facing bricks patented under P. R. 16823
DE180176C (en) *
US1688405A (en) * 1926-10-02 1928-10-23 Washington A Stoehr Wall-veneering material
US2078039A (en) * 1936-08-05 1937-04-20 Stoner Paul Self-sealing siding
DE733390C (en) * 1936-09-26 1943-03-25 Carl Ludowici Komm Ges Auf Akt Roof covering made of ribbed roof tiles for camouflage purposes
US2246987A (en) * 1937-10-23 1941-06-24 United States Gypsum Co Continuous molding apparatus
US2531574A (en) * 1949-11-09 1950-11-28 Gus W Lang Machine for making cement roofing tile
GB780848A (en) * 1953-10-20 1957-08-07 Donald Mcknight Improvements in and relating to roofing tiles and the like
DE1584726A1 (en) * 1964-11-25 1970-07-23 Heinrich Schaper Rolling machine for the production of concrete roof tiles
FR2379361A1 (en) * 1977-02-02 1978-09-01 Kubota Ltd ROOF PANEL MOLDING DEVICE WITH A GRADINAL PART
DE2737007A1 (en) * 1977-08-17 1979-02-22 Fritz Schauffele Multi-purpose composite building slab - has reinforced bonded layer of resin, sand and aggregate, and plastics coating
FR2524925A1 (en) * 1982-04-08 1983-10-14 Marley Tile Ag PERFECTED ROOF TILE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283514A (en) * 1993-11-05 1995-05-10 Forticrete Ltd Roof tiles
GB2283514B (en) * 1993-11-05 1997-05-14 Forticrete Ltd Roof tile
US5743059A (en) * 1993-11-05 1998-04-28 Crh Oldcastle, Inc. Roof tile
EP2711148A1 (en) * 2012-09-24 2014-03-26 Weser Method and facility for manufacturing wall tiles
FR2995811A1 (en) * 2012-09-24 2014-03-28 Weser Sa METHOD AND INSTALLATION FOR MANUFACTURING WALL COVERS

Also Published As

Publication number Publication date
ATE104585T1 (en) 1994-05-15
DE69101761D1 (en) 1994-05-26
ES2044807T3 (en) 1994-06-16
NL9001895A (en) 1992-03-16
EP0475471B1 (en) 1994-04-20
DE69101761T2 (en) 1994-08-04
DK0475471T3 (en) 1994-08-01
ES2044807T1 (en) 1994-01-16

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