EP0262877A2 - Bürsten-Dichtungsstreifen - Google Patents

Bürsten-Dichtungsstreifen Download PDF

Info

Publication number
EP0262877A2
EP0262877A2 EP87308500A EP87308500A EP0262877A2 EP 0262877 A2 EP0262877 A2 EP 0262877A2 EP 87308500 A EP87308500 A EP 87308500A EP 87308500 A EP87308500 A EP 87308500A EP 0262877 A2 EP0262877 A2 EP 0262877A2
Authority
EP
European Patent Office
Prior art keywords
pile
fin
weatherstrip
door
friction
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.)
Withdrawn
Application number
EP87308500A
Other languages
English (en)
French (fr)
Other versions
EP0262877A3 (de
Inventor
Albert Edmundson
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.)
Linear Ltd
Original Assignee
Linear Ltd
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 Linear Ltd filed Critical Linear Ltd
Publication of EP0262877A2 publication Critical patent/EP0262877A2/de
Publication of EP0262877A3 publication Critical patent/EP0262877A3/de
Withdrawn legal-status Critical Current

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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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips

Definitions

  • the invention relates to pile weatherstrip and in particular to finned pile weatherstrip.
  • Finned pile weatherstrip is constructed from a woven backing with an upstanding pile, often of polypropylene yarn.
  • a fin usually of polypropylene film material, extends vertically from the backing along the length of the weatherstrip between the pile. In one form, the upper free edge of the fin extends above the pile.
  • the fixed frame may, for example, be rectangular with vertical jambs and horizontal head and sill members.
  • the movable panel may be in the form of a rectangular frame which slides in a plane parallel to the plane of the fixed frame to open and close the door or window.
  • the finned pile weatherstrip is generally mounted to extend along the jambs and across the head and sill of the stationary frame - although it may be mounted on the movable panel.
  • breakaway force an initial force must be applied to the movable panel in order to overcome the inertia of the movable panel and to break the engagement with the finned pile weatherstrip. This force is termed the "breakaway force”. Once these initial forces have been overcome, there is a steady force which must be appllied to the movable panel in order to maintain the movement. This is termed the “sliding force”. In general, the breakaway force and sliding force are inter-related to the extent that a reduction in breakaway force (which is generally the larger of the two forces) will produce a reduction in sliding force (which is generally the lesser of the two forces).
  • the magnitude of the breakaway force and the sliding force are important because, if they are too great, the door or window cannot be opened by, for example, children or elderly or infirm persons and as a result of this manufacturers consider this an important feature of such doors and windows. Accordingly, in order to make the opening of a door or window as easy as possible, it is desirable to have the breakaway force and the sliding force as low as possible, without reducing the performance of the seal to an unacceptable level.
  • the technical problem sought to be overcome by the invention is the production of finned pile weatherstrip which allows the breakaway force and the sliding force to be consistently reduced.
  • a weatherstrip comprising an elongate backing having a pile and a fin upstanding therefrom, the fin extending along the backing within the pile and extending above the pile, for sealing contact with a door or window frame, at least said contacting portion of said fin being treated to provide a surface of reduced coefficient of friction with the said door or window surface, or being of a material having a lower coefficient of friction with said door or window surface than polypropylene.
  • the pile weatherstrip comprises a backing strip 10 formed of a woven material.
  • a pile 11 extends vertically upwardly from the backing strip and is formed by known weaving techniques.
  • the material of the pile may be a polypropylene yarn.
  • the height H of the pile is cut to a predetermined value.
  • a pair of fins 12 extend along the backing strip 10 within the pile 11.
  • the fins are formed from a sheet of material bent into a U-shape and welded at the base 13 of the U to the backing strip 10. The fixing need not be by welding. It could be by gluing.
  • the fins 12 need not be fixed to the backing strip 10 - they could be fixed to the pile 11. There could be only one fin.
  • the material of the sheet is either of polypropylene treated, for example, with a silicon compound, or is of a material having a lower coefficient of friction than polypropylene.
  • it could be formed from polypropylene to which has been added a suitable amount of a compound which has the effect of reducing the coefficient of friction of the polypropylene.
  • a suitable wax-based compound may be added to the polypropylene of the fin.
  • This height (h) may be between 0.015 inches and 0.200 inches or more.
  • the finned pile weatherstrip is mounted in a carrier 14 in a door or window and, when the door or window is closed, it engages with a second door member 15 to close the gap between them.
  • the height H of the pile 11 may be arranged so that it just equals the gap D between the members 14, 15 or, preferably, so that H is just greater than D - so placing the pile 11 under slight compression (for example 5% compression). This latter mode has the benefit of inhibiting the flow of air through the gap D should the fin 12 be broken.
  • a finned pile weatherstrip having a fin with a coefficient of friction with anodized aluminium of 0.172 was mounted in a window and the breakaway force was tested in accordance with BS 6375, BS 5286 and BS 5368.
  • a known finned pile weatherstrip having a coefficient of friction with anodized aluminium of 0.258 was tested in the same way.
  • the first type was a commercially available weatherstrip having a width of 6.7mm.
  • the height (H) of the fin above the pile was 1mm and the fin was of untreated polypropylene.
  • Three sizes of this type were prepared, one having a pile height (H) of 4.5mm, a second having a pile height (H) of 5.0mm and a third having a pile height of 7.0mm.
  • the second type of pile weatherstrip was constructed as the first pile weatherstrip, but the polypropylene of the fin contained an additive for reducing the coefficients of friction of the fin. Again, three sizes of this type were prepared with pile heights (H) of 4.5mm, 5.0mm and 7.0mm.
  • Pile 1 and Pile 2 were fitted successively to a horizontal sliding window having a sliding sash of width 0.94m and height 0.905m, and to a paito door having a sliding panel of width 1.165m and height 1.92m.
  • a pile height of 4.5mm was used throughout, but in the door, a pile height of 5.0mm was used at the jambs and a pile height of 7.0mm at the head and sill.
  • the piles were mounted under 5% compression.
  • the breakaway force and the sliding force were measured in accordance with the BS6375, BS5286 and BS5368, with the following results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP87308500A 1986-09-29 1987-09-25 Bürsten-Dichtungsstreifen Withdrawn EP0262877A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8623388 1986-09-29
GB868623388A GB8623388D0 (en) 1986-09-29 1986-09-29 Pile weatherstripping

Publications (2)

Publication Number Publication Date
EP0262877A2 true EP0262877A2 (de) 1988-04-06
EP0262877A3 EP0262877A3 (de) 1989-03-01

Family

ID=10604969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87308500A Withdrawn EP0262877A3 (de) 1986-09-29 1987-09-25 Bürsten-Dichtungsstreifen

Country Status (3)

Country Link
EP (1) EP0262877A3 (de)
AU (1) AU7907587A (de)
GB (2) GB8623388D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020718A3 (nl) * 2012-06-22 2014-04-01 Renson Sunprot Screens Nv Lamellenafdak.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745053A (en) * 1972-05-26 1973-07-10 Usm Corp Weatherstrip
US4214930A (en) * 1979-05-29 1980-07-29 Schlegel Corporation Weatherstrip and method for sealing a gap
GB2060041B (en) * 1979-10-08 1983-03-23 Schlegel Uk Ltd Pile weatherstrip
US4242392A (en) * 1979-10-18 1980-12-30 Schlegel Corporation Soft barrier fin weatherstrip and method of manufacture
GB2068441B (en) * 1980-01-31 1983-06-08 Schlegel Corp Weatherstrip
GB2075104B (en) * 1980-05-02 1983-11-02 Linear Textiles Ltd Sealing strips and methods of their manufacture
US4551376A (en) * 1985-05-07 1985-11-05 Milton Kessler Lubricated fin pile-type weatherstrip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020718A3 (nl) * 2012-06-22 2014-04-01 Renson Sunprot Screens Nv Lamellenafdak.

Also Published As

Publication number Publication date
EP0262877A3 (de) 1989-03-01
GB8623388D0 (en) 1986-11-05
AU7907587A (en) 1988-03-31
GB2197375A (en) 1988-05-18
GB8722561D0 (en) 1987-11-04

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Inventor name: EDMUNDSON, ALBERT