WO2005068765A1 - Anti-dust coating for a glass enclosed chamber containing a venetian blind - Google Patents

Anti-dust coating for a glass enclosed chamber containing a venetian blind Download PDF

Info

Publication number
WO2005068765A1
WO2005068765A1 PCT/IT2004/000032 IT2004000032W WO2005068765A1 WO 2005068765 A1 WO2005068765 A1 WO 2005068765A1 IT 2004000032 W IT2004000032 W IT 2004000032W WO 2005068765 A1 WO2005068765 A1 WO 2005068765A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal parts
coating
slats
product
parts
Prior art date
Application number
PCT/IT2004/000032
Other languages
French (fr)
Inventor
Giovanni Nicolosi
Original Assignee
Pellini S.P.A.
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
Application filed by Pellini S.P.A. filed Critical Pellini S.P.A.
Priority to EP04706779A priority Critical patent/EP1706572B1/en
Priority to AT04706779T priority patent/ATE524632T1/en
Publication of WO2005068765A1 publication Critical patent/WO2005068765A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67321—Covering spacer elements, e.g. with sealants

Definitions

  • Venetian blinds on an aluminium frame placed inside a chamber formed by panes of glass, present a disadvantage owing to the fact that, during their vertical movement, the slats tend to rub against lateral parts of the frame.
  • Subject of the disclosure consists in application of a coating to the lateral metal parts of the frame for Venetian blinds, enclosed within a chamber formed by panes of glass, to facilitate the vertical sliding movement made when the blind is raised or lowered and to increase resistance to abrasion by said slats so preventing any squeaking noise but above all friction with parts of the frame producing a dark- coloured dust that forms indelible stains on the surface of the slats.
  • the coating is also applied to the lateral strip for guiding the slats fixed to the inner face of the metal frame, and so placed to prevent contact between the moving slats and the glass panes of the chamber.
  • the coating is obtained by application of a suitable product to the parts that come in contact with the slats.
  • the product is so applied as to exclude those parts of the frame that will be glued to the panes of glass to make the chamber airtight.
  • the product is transparent, resistant to U.V. rays and is of a kind that will not give off volatile substances which could pollute the glass walls of the chamber.
  • the product is a polytetrafluoroethylene.
  • the product is a polyalkylsiloxane.
  • the product is applied using an installation in which the axially translated frame maintains contact with a shaped roller that, matching with the surfaces of the frame and of the slat guide strip to be coated, is partially immersed in a bath of the product in liquid form.
  • the parts for coating are translated in pairs with the surfaces to coat facing towards the sprayer.
  • Coating on the external sides of the pair is avoided by the amplitude and position of the sprayer cone and, on the internal faces, by reciprocal contact.
  • the pair of frame parts is supported by two or more horizontal rollers and drawn along by two or more pairs of vertical rollers.
  • the two elements of each pair of vertical rollers are placed one on either side of the pair of frame parts.
  • the coated parts are placed in a drying oven.
  • the coating is obtained by application, with adhesives, of a polytetrafluoroethylene film.
  • the coating is obtained by anodizing.
  • Fig. 1 Glass-enclosed chamber with Venetian blind supported by a frame comprising lateral tubular parts with a guide strip for the slats, perspective.
  • FIG. 2 Detail of the chamber in Figure 1 at the position of a slat, cross section.
  • FIG. 3 Detail of the chamber in Figure 1 showing a lateral metal part without slat guide, at the position of a slat, cross section.
  • Fig. 4 Installation for application by roller of a coating on the surfaces of lateral metal parts facing towards the slats, perspective.
  • Fig. 6 Installation for application of the coating by a sprayer to surfaces of a pair of metal parts facing towards the slats, perspective.
  • FIG. 7 Cross section of the installation in Figure 6.
  • Fig. 8 Detail of a pair of frame parts in the coating sprayer, cross section.
  • FIG. 9 Detail of the glass-enclosed chamber in Figure 1 showing metal parts with the slat-guiding strip, the internal faces of which are coated, cross section.
  • the glass-enclosed chamber 10 comprises the frame 14 and panes of glass 38, 40.
  • the frame 14 consists of the upper 16, lower 18 and lateral 20 parts, and comprises the upper fixed box 50.
  • the Venetian blind 58 comprises the slats 60 with holes 62 for the cords 64 fixed below to the lower mobile box 54. With said cords 64, the blind can be lowered and raised by devices placed inside the upper fixed box 50, and which for simplicity are not described.
  • the lateral metal parts 20 of the frame 14, with slat guiding strips 22, present internal faces 30, external faces 32 and sides 34, 35 to which the glass panes 38, 40 are fixed by glue. Abrasion at the ends of the slats, when moving up or down, against the internal faces 30 of the lateral metal parts 20, as happens at present, and of the slat guide strips 22, not only produces an annoying squeak but also a dark-coloured dust that settles on the ends of the slats, gradually moving across their entire surfaces and leaving practically indelible stains 66 ( Figures 2, 3).
  • a coating of protective material, 85 ( Figure 4) and 110 ( Figures 6, 8, 9), is applied to the internal faces 30 of the frame's lateral metal parts 20 and to the slat guide strips 22, that not only eases the sliding movement of the slats against the internal faces of said lateral parts, but also prevents production of the dark-coloured dust and therefore of the stains 66 ( Figures 2, 3).
  • Installations such as 70 and 90 are used to apply this coating.
  • the installation 70 ( Figures 4 and 5) comprises the roller 74, with pin 76, partially immersed in the coating liquid 82 in the bath 72.
  • the shaped faces 78, 80 of said roller 74 match respectively with the internal face 30 of the tubular part 20 and with the internal face of the guide strip 22 for the slats 60.
  • the installation 90 comprises the sprayer 104 fed through tube 106.
  • a pair of metal parts 20, 20', with their sides 35, 34' placed together, are made to slide under the sprayer cone 104 supported by horizontal rollers 92, 94 and drawn along by the pairs of vertical rollers 96,97 and 100,101 as illustrated in Figures 6 and 7.
  • the sprayer cone 108 lies substantially along the longitudinal axis of the pair of metal parts 20 and 20' so that the internal faces 30 and 30' of said parts 20 and 20' receive the sprayer applied coating 110 and 110'. This coating is not extended to the sides 34, 35 and 34' 35' of the metal parts.
  • Figure 9 illustrates the metal part 20 the faces of which are turned towards the slats 60 and are protected by the coating 85 or 110.
  • This coating prevents abrasion of the metal due to friction with the edges of the slats, thus preventing production of the dark-coloured dust with all its attendant negative effects.

Abstract

Lateral metal parts of the frame for Venetian blinds in a glass-enclose chamber, to which a coating product is applied in order to facilitate sliding movement of the edges of the slats when the blind is raised or lowered, thus reducing friction and preventing squeaking noises as well as avoiding production of a dark-coloured dust which then becomes detached. The coating is applied by an installation that causes axial translation of a pair of metal parts placed side by side, maintaining the parts to be coated under the action of a product sprayer, exclusion of coating on the external sides of the pair of parts being ensured by the amplitude and position of the sprayer cone and, on the internal sides, by their reciprocal contact.

Description

Anti-dust coating for a glass enclosed chamber containing a Venetian blind
Venetian blinds, on an aluminium frame placed inside a chamber formed by panes of glass, present a disadvantage owing to the fact that, during their vertical movement, the slats tend to rub against lateral parts of the frame.
This drawback is even more serious when the frame comprises vertical strips placed between the glass and the slats to prevent direct contact between them. Abrasion between the slats and the frame causes formation of a dark-coloured dust that first deposits on the ends of the slats but, due to vibrations set up during movement, spreads over their entire surface.
This dust creates a practically indelible stain on the slats. The above disclosure solves the problem by simple and inexpensive means as will now be explained.
Subject of the disclosure consists in application of a coating to the lateral metal parts of the frame for Venetian blinds, enclosed within a chamber formed by panes of glass, to facilitate the vertical sliding movement made when the blind is raised or lowered and to increase resistance to abrasion by said slats so preventing any squeaking noise but above all friction with parts of the frame producing a dark- coloured dust that forms indelible stains on the surface of the slats. The coating is also applied to the lateral strip for guiding the slats fixed to the inner face of the metal frame, and so placed to prevent contact between the moving slats and the glass panes of the chamber. The coating is obtained by application of a suitable product to the parts that come in contact with the slats.
The product is so applied as to exclude those parts of the frame that will be glued to the panes of glass to make the chamber airtight.
The product is transparent, resistant to U.V. rays and is of a kind that will not give off volatile substances which could pollute the glass walls of the chamber.
In one type of execution the product is a polytetrafluoroethylene.
In another type of execution the product is a polyalkylsiloxane.
In one type of execution the product is applied using an installation in which the axially translated frame maintains contact with a shaped roller that, matching with the surfaces of the frame and of the slat guide strip to be coated, is partially immersed in a bath of the product in liquid form.
In another type of execution application is made using an installation in which the frame is axially translated keeping the parts to be coated under the action of a product sprayer.
The parts for coating are translated in pairs with the surfaces to coat facing towards the sprayer.
Coating on the external sides of the pair is avoided by the amplitude and position of the sprayer cone and, on the internal faces, by reciprocal contact.
In this installation the pair of frame parts is supported by two or more horizontal rollers and drawn along by two or more pairs of vertical rollers. The two elements of each pair of vertical rollers are placed one on either side of the pair of frame parts. On completing application of the product, the coated parts are placed in a drying oven.
In one type of execution the coating is obtained by application, with adhesives, of a polytetrafluoroethylene film. In another type of execution the coating is obtained by anodizing.
Characteristics and purposes of the disclosure will be made still clearer by the following examples of its execution illustrated by diagrammatically drawn figures.
Fig. 1 Glass-enclosed chamber with Venetian blind supported by a frame comprising lateral tubular parts with a guide strip for the slats, perspective.
Fig. 2 Detail of the chamber in Figure 1 at the position of a slat, cross section.
Fig. 3 Detail of the chamber in Figure 1 showing a lateral metal part without slat guide, at the position of a slat, cross section.
Fig. 4 Installation for application by roller of a coating on the surfaces of lateral metal parts facing towards the slats, perspective.
Fig. 5 Cross section of the installation in Figure 4.
Fig. 6 Installation for application of the coating by a sprayer to surfaces of a pair of metal parts facing towards the slats, perspective.
Fig. 7 Cross section of the installation in Figure 6.
Fig. 8 Detail of a pair of frame parts in the coating sprayer, cross section.
Fig. 9 Detail of the glass-enclosed chamber in Figure 1 showing metal parts with the slat-guiding strip, the internal faces of which are coated, cross section.
The glass-enclosed chamber 10 comprises the frame 14 and panes of glass 38, 40.
The frame 14 consists of the upper 16, lower 18 and lateral 20 parts, and comprises the upper fixed box 50.
The Venetian blind 58 comprises the slats 60 with holes 62 for the cords 64 fixed below to the lower mobile box 54. With said cords 64, the blind can be lowered and raised by devices placed inside the upper fixed box 50, and which for simplicity are not described.
The filling 42 in the space around the frame 14 of the glass-enclosed chamber, can be seen in Figures 2 and 3.
The lateral metal parts 20 of the frame 14, with slat guiding strips 22, present internal faces 30, external faces 32 and sides 34, 35 to which the glass panes 38, 40 are fixed by glue. Abrasion at the ends of the slats, when moving up or down, against the internal faces 30 of the lateral metal parts 20, as happens at present, and of the slat guide strips 22, not only produces an annoying squeak but also a dark-coloured dust that settles on the ends of the slats, gradually moving across their entire surfaces and leaving practically indelible stains 66 (Figures 2, 3). To avoid these drawbacks a coating of protective material, 85 (Figure 4) and 110 (Figures 6, 8, 9), is applied to the internal faces 30 of the frame's lateral metal parts 20 and to the slat guide strips 22, that not only eases the sliding movement of the slats against the internal faces of said lateral parts, but also prevents production of the dark-coloured dust and therefore of the stains 66 (Figures 2, 3). Installations such as 70 and 90 are used to apply this coating. The installation 70 (Figures 4 and 5) comprises the roller 74, with pin 76, partially immersed in the coating liquid 82 in the bath 72. The shaped faces 78, 80 of said roller 74 match respectively with the internal face 30 of the tubular part 20 and with the internal face of the guide strip 22 for the slats 60.
As clearly seen in Figures 4 and 5, by means of an axial sliding movement of the metal part 20, the liquid 82 is transferred to said internal faces 30 of said part 20 and of the guide strip 22, so forming a protective coating.
The installation 90 comprises the sprayer 104 fed through tube 106. A pair of metal parts 20, 20', with their sides 35, 34' placed together, are made to slide under the sprayer cone 104 supported by horizontal rollers 92, 94 and drawn along by the pairs of vertical rollers 96,97 and 100,101 as illustrated in Figures 6 and 7. It will be seen that the sprayer cone 108 lies substantially along the longitudinal axis of the pair of metal parts 20 and 20' so that the internal faces 30 and 30' of said parts 20 and 20' receive the sprayer applied coating 110 and 110'. This coating is not extended to the sides 34, 35 and 34' 35' of the metal parts.
Exclusion from coating of the external sides 34 and 35' of the pair of parts is ensured by adjustment of the sprayer cone and, of the internal sides 35 and 34', by their reciprocal contact. Figure 9 illustrates the metal part 20 the faces of which are turned towards the slats 60 and are protected by the coating 85 or 110.
This coating prevents abrasion of the metal due to friction with the edges of the slats, thus preventing production of the dark-coloured dust with all its attendant negative effects.

Claims

1. Lateral metal parts of the frame for slatted Venetian blinds within a glass-enclosed chamber, characterized in that said metal parts present a coating to facilitate sliding movement of the edges of the slats when the blind is raised or lowered to open or close it, and to improve resistance to friction between slats and metal so preventing any squeaking noise as well as production of a dark-coloured dust from said metal parts that settles on the surface of the slats staining them in a practically indelible manner.
2. Metal parts as in claim 1 , characterized in that the coating is also applied to the lateral guide strip for the slats, said guide being fixed to the internal surface of the metal parts and preventing contact between the slats and the glass panes of the chamber.
3. Metal parts as in claims 1 and 2, characterized in that the coating is obtained by application of a suitable product to the parts that come in contact with the blades.
4. Metal parts as in claim 3, characterized in that application is so made as to ensure exclusion of those metal parts that will be glued to the glass panes so forming an airtight chamber.
5. Metal parts as in claim 3, characterized in that the product is transparent, is resistant to U.V. rays and will not give off volatile substances that can pollute the glass-enclosed chamber.
6. Metal parts as in claim 3, characterized in that the product is a polytetrafluoroethylene.
7. Metal parts as in claim 3, characterized in that the product is a poly-alkylsiloxane.
8. Metal parts as in claim 3, characterized in that application is made by an installation that causes axial translation of the metal parts kept in contact with a shaped roller that matches with the surfaces of the metal parts and slat guides to be coated, said roller being partially immersed in the product in liquid form contained in a bath.
9. Metal parts as in claim 3, characterized in that application is made by an installation that causes axial translation of the metal parts keeping the parts to be coated below a product sprayer.
10. Metal parts as in claim 9, characterized in that, placed in pairs side by side, they are made to translate with the surfaces to be coated facing towards the sprayer, exclusion from coating being assured on the external sides of each pair by the amplitude and position of the spraying cone, and on the internal faces by reciprocal contact.
11. Metal parts as in claim 10, characterized in that the pair of metal parts is supported by two or more horizontal rollers and drawn along by two or more pairs of vertical rollers, the two elements of each pair of vertical rollers being placed one on either side of the pair of metal parts.
12. Metal parts as in claim 3, characterized in that, after application of the product, they are placed in an oven to dry out the product.
13. Metal parts as in claims 1 and 2, characterized in that the coating consists of a film of polytetrafluoroethylene applied by adhesives.
14. Metal parts as in claims 1 and 2, characterized in that the coating is obtained by anodizing.
15. Installation for roller-applied coating of metal parts forming the frame for Venetian blinds with slats in a glass-enclosed chamber, as in claims 1 to 8.
16. Installation for a sprayer-applied coating of metal parts forming the frame for Venetian blinds with slats in a glass-enclosed chamber as in claims 9 to 11.
PCT/IT2004/000032 2004-01-15 2004-01-30 Anti-dust coating for a glass enclosed chamber containing a venetian blind WO2005068765A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04706779A EP1706572B1 (en) 2004-01-15 2004-01-30 Anti-dust coating for a glass enclosed chamber containing a venetian blind
AT04706779T ATE524632T1 (en) 2004-01-15 2004-01-30 COATING TO PREVENT ABRASION OF A BLIND INSTALLED IN AN INSULATING PANEL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2004A000035 2004-01-15
IT000035A ITMI20040035A1 (en) 2004-01-15 2004-01-15 DUST COVERING FOR GLASS-ROOM WITH VENETIAN BLIND

Publications (1)

Publication Number Publication Date
WO2005068765A1 true WO2005068765A1 (en) 2005-07-28

Family

ID=34779435

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2004/000032 WO2005068765A1 (en) 2004-01-15 2004-01-30 Anti-dust coating for a glass enclosed chamber containing a venetian blind

Country Status (4)

Country Link
EP (1) EP1706572B1 (en)
AT (1) ATE524632T1 (en)
IT (1) ITMI20040035A1 (en)
WO (1) WO2005068765A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109837108B (en) * 2019-03-27 2023-10-27 中冶南方工程技术有限公司 Nested circular seam cleaning device and gas cleaning system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113957A1 (en) * 1981-04-07 1982-10-21 Hansa Metallwarengesellschaft Mbh Thiessen & Hager, 2000 Hamburg Slatted blind
GB2330168A (en) * 1997-10-10 1999-04-14 Rustin Allen Limited Double-glazed partition
US6287383B1 (en) * 1998-03-17 2001-09-11 Isoteck Corporation Texturing and preferential painting process for vertical and horizontal blinds
DE20111569U1 (en) * 2001-07-17 2001-09-27 Eae Patent Und Lizenzmarketing Glazing arrangement with interior blind guide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113957A1 (en) * 1981-04-07 1982-10-21 Hansa Metallwarengesellschaft Mbh Thiessen & Hager, 2000 Hamburg Slatted blind
GB2330168A (en) * 1997-10-10 1999-04-14 Rustin Allen Limited Double-glazed partition
US6287383B1 (en) * 1998-03-17 2001-09-11 Isoteck Corporation Texturing and preferential painting process for vertical and horizontal blinds
DE20111569U1 (en) * 2001-07-17 2001-09-27 Eae Patent Und Lizenzmarketing Glazing arrangement with interior blind guide

Also Published As

Publication number Publication date
ATE524632T1 (en) 2011-09-15
ITMI20040035A1 (en) 2004-04-15
EP1706572B1 (en) 2011-09-14
EP1706572A1 (en) 2006-10-04

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