GB2102868A - Sealing strip for weather excluder - Google Patents

Sealing strip for weather excluder Download PDF

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Publication number
GB2102868A
GB2102868A GB08211078A GB8211078A GB2102868A GB 2102868 A GB2102868 A GB 2102868A GB 08211078 A GB08211078 A GB 08211078A GB 8211078 A GB8211078 A GB 8211078A GB 2102868 A GB2102868 A GB 2102868A
Authority
GB
United Kingdom
Prior art keywords
blade
door
groove
sealing blade
window
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
GB08211078A
Other versions
GB2102868B (en
Inventor
Brian Christopher Allport
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB2102868A publication Critical patent/GB2102868A/en
Application granted granted Critical
Publication of GB2102868B publication Critical patent/GB2102868B/en
Expired 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
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2316—Plastic, sponge rubber, or like strips or tubes used as a seal between the floor and the wing
    • 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
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
    • E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
    • E06B7/231—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a solid sealing part

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

A resilient sealing blade for use in a weather excluder for a door or window 13 wherein the resilient sealing blade 15' is mounted in and projects from a groove in an elongate seal support member 10, the latter being secured in use in the door or window opening in such a position that the blade 15' is engaged and deflected sideways by an edge 17 of the door or window upon closure of the latter. The projecting portion of the sealing blade 15' comprises a first portion 21 adjacent the groove which is angled in a direction opposite to the direction of door or window closure, and a second portion 22 remote from the groove which is angled in the same direction as the direction of door or window closure. This permits the blade to recoil smoothly when the door or window is opened, rather than experience a severe wrench and buckling which may occur with straight blades. <IMAGE>

Description

SPECIFICATION A resilient sealing blade for use in a weather excluder This invention relates to a resilient sealing blade and in particular to a resilient sealing blade for use in a weather excluder for a door or window of the kind comprising an elongate resilient sealing blade which is mounted in and projects from a groove in an elongate seal support member, the latter being secured in use in the door or window opening in such a position that the sealing blade is engaged and deflected sideways by an edge of the door or window upon closure of the latter to form a seal against the said edge.
Several examples of a weather excluder of the above kind are described in our copending British Patent Application No. 800951 and a similar excluder is shown in cross-section in figures 1 and 2 of the drawings accompanying the present Specification. The excluder comprises a rigid elongate seal support member 10 of extruded aluminium having retaining ribs or stands 11 by which the member 10 is secured to the threshold 12 of an external door 13. The member 10 carries two elongate resilient sealing blades 14, 1 5 of neoprene rubber, each mounted by an enlarged integral root portion in a respective groove in the member 10. In the unstressed state with the door 13 open (figure 1) each blade is substantially straight and projects freely from its respective groove, but when the door is fully closed (figure 2) each blade is deformed to seal against the door.In particular, the front sealing blade 14 seals against the front surface 1 6 of the door 1 3 and the rear sealing blade 15 seals against the bottom edge 17 of the door.
The present invention is concerned generally with resilient sealing blades for use with weather excluders which provide a seal in a similar way to that provided by the rear sealing blade 15, i.e., an excluder in which a seal is formed against an edge of a door or window by engagement and sideways deflection of a sealing blade by the edge of the door or window when the latter is closed. Further description of the front blade 14 is therefore unnecessary, but if desired details thereof and of the excluder as a whole can be found in the aforementioned British Patent Application No.
8009511.
A disadvantage of the sealing blade 1 5 and similar arrangements is that whereas closure of the door or window proceeds relatively smoothly with little friction, when the door or window is opened the edge of the latter frictionally grips the free end of the forwardly inclined blade so that the blade is forced to buckle rearwardly to permit the opening door or window to continue in its passage across the blade. This provides a severe wrench to the blade, and considerable resistance to opening can be felt. Furthermore, such wrenching substantially shortens the life of the blade, in particular by placing excessive strain at the region between the root portion in the groove and the blade proper.
It is therefore an object of the present invention to provide a new construction of resilient sealing blade for use with a weather excluder of the above kind which reduces the strain on the blade as the door or window is opened.
Accordingly, the present invention provides a resilient sealing blade for use with a weather excluder of the kind defined above said sealing blade comprising a root portion and a blade portion, wherein in use with a weather excluder the root portion is accommodated in a groove or recess of the excluder and wherein the projecting portion of the sealing blade comprises a first portion adjacent the groove which is angled in a direction opposite to the direction of door or window closure and a second portion remote from the groove which is angled in the same direction as the direction of door or window closure.
The advantage of the invention is that the angled form of the sealing blade permits the latter to recoil smoothly without severe wrenching or buckling as the door or window is opened, thus providing less resistance to opening the door or window and prolonging the life of the blade. A further advantage is that the efficiency of the blade in resisting water penetration and wind is enhanced due to the greater area of the blade.
Preferably, the second portion of the sealing blade is provided intermediate in length with a longitudinal groove which acts in use to facilitate deformation of the said portion of the sealing blade to again minimise wear on the sealing blade as the door or window is opened without of course impairing the facility of the blade to act as a sealing blade.
Embodiments of the invention will now be described with reference to the accompanying drawings, in which: Figures 1 and 2, previously described, are cross-sectional views of a known weather excluder for use at the bottom edge of an external door, figure 1 showing the excluder with its blades in the undeformed state with the door open and figure 2 showing the excluder with the door closed and the sealing blades deformed; Figure 3 is a cross-sectional view of an embodiment of the invention which is a modification of the excluder of figures 1 and 2, only the rear sealing blade being shown and the door being open; Figure 4 is a cross-sectional view of the excluder of figure 3 with the door closed; Figures 5 to 7 are cross-sectional views of the excluder of figure 3 showing the sealing blade in successive stages of recoil as the door is opened;; Figure 8 is a cross-section of a second embodiment of the invention; Figure 9 is a detail sectional end view of the sealing blade shown in figures 3-8; and Figure 10 is a further embodiment of the resilient sealing blade accommodated in an elongate groove formed in a window frame.
In all figures it is to be understood that the excluder extends longitudinally in a direction normal to the plane of the drawings.
Referring first to figure 3, the excluder there shown differs from that shown in figures 1 and 2 only in respect of the cross-sectional shape of the rear sealing blade 1 5, here referenced 1 5'. As before the blade 15' comprises an enlarged root portion 20 mounted in a groove of generally complementary shape in the aluminium member 10. The blade proper projects freely from the groove and comprises two portions, a first portion 21 adjacent the groove which is angled in a direction opposite to the direction of door closure, and a second portion 22 remote from the groove which is angled in the same direction as the direction of door closure. The second portion 22 has a longitudinal groove 22a which in use facilitates a controlled deformation of the sealing blade. In figure 3 the direction of door closure is indicated by the arrow 23.The root portion 20 and the angled portions 21 and 22 are formed integrally as an extrusion of E.P.D.M., the root portion 20 being inserted in the groove by compression or threading in from one end. The blade 15' preferably also includes integral flanges 24 on either side which bear upon the opposite outer edges of the groove. These flanges 24 both help to prevent the ingress of moisture into the groove, and also provide additional support and strength to the region between the root portion 20 and the blade proper 21/22 when the latter is deflected out of its undeformed state, particularly during recoil.Preferably the first portion 21 of the blade is angled at about 300 to the horizontal, i.e., 300 to the direction of door closure, and the portion 22 is angled at about 900 to the portion 21.The configuration of the sealing blade is illustrated in figure 9 of the accompanying drawings.
When the door 13 is closed, the blade 15' assumes the deformed state shown in figure 4 in which both portions 21 and 22 are deflected sideways in the forward direction of the door by engagement with the bottom edge 1 7 of the door.
It is to be noted that the blade 15' presents a greater area to wind pressure compared to the blade 15 and thus provides a higher efficiency in resisting water penetration and wind under high wind conditions since the seal is tightened to a greater extent by such pressure.
When the door 13 is opened, in the direction indicated by the arrow 25 in figures 5 to 7, the blade 15' recoils smoothly as shown and at no time presents an excessive counter-pressure against the bottom edge 1 7 of the door. The final fully extended position of the blade 1 5', figure 7, permits the bottom edge 1 7 of the door to disengage smoothly from the blade whereupon the latter returns to the undeflected state of figure 3 by virtue of its inherent resilience.
While the above embodiment has shown the invention as applied to a door sill weather excluder with two sealing blades, the invention embraces the use of only a single sealing blade and is of general applicability for sealing an edge of a door or window where the said edge, at least in the final stages of closing, moves in a direction generally parallel to itself so as to be capable of sideways deflection of a sealing blade suitably located in the door or window opening. Thus for conventional doors and windows hinged on one vertical side, for example, the invention may be applied to all sides of the door or window opening.
Thus figure 8 shows in cross-section a second embodiment of the invention where a plate-like seal support member 10' is attached (by screws for example) to the inside surface 26 of a vertical frame member 27 of a window or door 28. In this case the resilient sealing blade 1 5' is the only such blade provided in respect of the member 10', since the use of a front blade corresponding to the blade 14 of figures 1 and 2 is precluded by the presence of the lip 29 of the frame member 27.
This embodiment also shows a root portion 20' of different cross-sectional shape to that shown above, and it is to be understood that in general the root portion of the sealing blade which is mounted in the groove may be of any suitable desired shape, the groove having a generally complementary shape.
Referring to Figure 10 of the accompanying drawings the sealing blade, which has particular application in sealing doors and/or windows and is adapted to be accommodated in a groove 30 in a door frame 31 and/or window frame as appropriate, comprises a root portion 32, having angled portions 33 and 34 to allow the root portion 32 grip the sides of the groove 30, and a blade portion which projects freely from the groove 30 having a first portion 35 adjacent to the groove 30 which is angled in a direction opposite to the direction of door/window closure and a second portion 36 removed from the groove 30 which is angled in the same direction as the direction of door/window closure. The second portion 36 is provided with a small longitudinal groove 37.
It will be readily appreciated that in the present case the resilient sealing blade has been described in relation to its primary use, namely a sealing blade for use in a weather excluder. The sealing blade of the present invention may, however, be accommodated in a groove formed in a door and/or window frame and in this context it is to be understood that the term of convenience in the present Specification namely "for use in a weather excluder" is not restrictive on the use of the sealing blade and that the elongate seal support member may readily simply comprise an elongate groove formed in a door and/or window surround.
This latter aspect of the present invention is illustrated in and described in relation to figure 10 of the accompanying drawings.

Claims (6)

1. A resilient sealing blade for use in a weather excluder for a door or window of the kind comprising an elongate resilient sealing blade which is mounted in and projects from a groove in an elongate seal support member, said resilient sealing blade comprising a root portion and a blade portion wherein in use the root portion is accommodated in a groove in the elongate seal support member of the excluder and wherein the projecting blade portion of the sealing blade comprises a first portion adjacent the groove which is angled in a direction opposite to the direction of the door or window closure and a second portion remote from the groove which is angled in the same direction as the direction of door or window closure.
2. A resilient sealing blade, as claimed in claim 1, wherein the first portion of the sealing blade extends at a relatively shallow angle from the groove and the second portion extends at a substantially greater angle from the first portion.
3. A resilient sealing blade as claimed in claim 2, wherein the relatively shallow angle is about 300 and the substantially greater angle is about 900.
4. A resilient sealing blade for use as claimed in claim 1, 2 or 3 wherein the sealing blade comprises an enlarged root portion located in the groove with the latter having a restricted opening retaining the root portion in position, the sealing blade further including a pair of lateral flanges extending over the outer edges of the groove.
5. A resilient sealing blade as claimed in claim 1 in which the second portion of the blade portion is provided with a longitudinal groove intermediate its length to assist in use deformation of the sealing blade.
6. A resilient sealing blade for use in a weather excluder, substantially as described herein with reference to figures 9 and 10 of the accompanying drawings.
GB08211078A 1981-07-31 1982-04-16 Sealing strip for weather excluder Expired GB2102868B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE175981A IE51462B1 (en) 1981-07-31 1981-07-31 A resilient sealing blade for use in a weather excluder

Publications (2)

Publication Number Publication Date
GB2102868A true GB2102868A (en) 1983-02-09
GB2102868B GB2102868B (en) 1984-12-12

Family

ID=11030730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08211078A Expired GB2102868B (en) 1981-07-31 1982-04-16 Sealing strip for weather excluder

Country Status (2)

Country Link
GB (1) GB2102868B (en)
IE (1) IE51462B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651793A (en) * 1982-09-27 1987-03-24 Davlantes George N Pet door flap with slow moving sill
GB2265651A (en) * 1992-03-31 1993-10-06 Allport Brian Sealing blade for use in a weather excluder
WO1994008124A1 (en) * 1992-09-30 1994-04-14 Architectural Seals Limited Weatherproofing and draught excluding devices
US7621574B2 (en) * 2007-08-24 2009-11-24 Gm Global Technology Operations, Inc. Vehicle ditch molding

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651793A (en) * 1982-09-27 1987-03-24 Davlantes George N Pet door flap with slow moving sill
GB2265651A (en) * 1992-03-31 1993-10-06 Allport Brian Sealing blade for use in a weather excluder
GB2265651B (en) * 1992-03-31 1995-08-02 Allport Brian A weather seal assembly excluder
WO1994008124A1 (en) * 1992-09-30 1994-04-14 Architectural Seals Limited Weatherproofing and draught excluding devices
US7621574B2 (en) * 2007-08-24 2009-11-24 Gm Global Technology Operations, Inc. Vehicle ditch molding

Also Published As

Publication number Publication date
IE51462B1 (en) 1986-12-24
GB2102868B (en) 1984-12-12

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020415