GB2060040A - An improved draught excluder - Google Patents
An improved draught excluder Download PDFInfo
- Publication number
- GB2060040A GB2060040A GB7935099A GB7935099A GB2060040A GB 2060040 A GB2060040 A GB 2060040A GB 7935099 A GB7935099 A GB 7935099A GB 7935099 A GB7935099 A GB 7935099A GB 2060040 A GB2060040 A GB 2060040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- draught excluder
- hinging
- door
- excluder according
- 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
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
- 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
- E06B7/18—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever
- E06B7/20—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever automatically withdrawn when the wing is opened, e.g. by means of magnetic attraction, a pin or an inclined surface, especially for sills
Abstract
A draught excluder 1 includes an extruded first strip 2 adapted to be fixed to the bottom of a door or window and an extruded second strip 4 hinged to the first strip 2. The strip 4 is urged into an open position by spring means 8 and is adapted to be moved into a closed position against the force exerted by the spring means 8 as the for or window is closed by its engagement with a jamb, or means fixed to a jamb, of the door or window. The spring means 8, which suitably comprise at least one spring clip, are releasably retained in a slot 10, 12 provided in one of the strips 2 and 4. <IMAGE>
Description
SPECIFICATION
An improved draught excluder
This invention relates to an elongate draught excluder for fixing to the bottom of a door or window. In particular, but not exclusively, the draught excluder is intended to be fixed to the outside of an external, inwardly opening door to form an effective barrier against the ingress of draughts, dust, noise and storm water.
According to one aspect of the invention an elongate draught excluder comprises an extruded first strip adapted to be fixed to the bottom of a door or window and incorporating a first hinging portion, an extruded second strip incorporating a second hinging portion which is interengaged with the said first hinging portion so that the second strip is hinged to the first strip, about a hinging axis extending in the elongate direction, for hinging movement between a downwardly depending, closed position and an open position angled at less than 900 from said closed position, and spring means releasably retained in a slot extruded throughout the length of one of said first and second strips and resiliently urging the second strip into its open position, the second strip, when the draught excluder is fitted to the bottom of a door or window being adapted to be moved into its closed position, as the door or window is closed, by its engagement with a jamb, or means fixed to a jamb, or the door or window.
Preferably the said hinging portions are extruded throughout the length of said strips and are slidably interengaged with each other, stop means being provided to prevent relative sliding movement between the said strips after the hinging portions have been slidingly interengaged.
Conveniently the first hinging portion is in the form of a channel having a restricted opening throughout its length and which is arranged so that, in use of the draught excluder, the channel opens in a downward direction, and the second hinging portion is in the form of a bead extending along the upper edge of the second strip, the cross-section of the bead being slightly smaller than that of the channel.
Preferably a sealing member is secured to the second strip along its lower edge. Typically the sealing member comprised a neoprene elastomer rubber seal, a vinyl seal or a brush insert.
The spring means may comprise at least one, e.g. two, spring clips, each suitably comprising spring wire bent to have a portion releasably retained in said slot and one or a pair of spring arms acting against the other of said first and second strips. Suitably the or each arm acts against one of two or more shoulders formed on the inner surface of said other strip, the shoulder against which the or each arm acts determining the magnitude of spring force with which the second strip is urged into its open position.
Typically the first and second strips are extruded from metal, e.g. aluminium or an aluminium alloy.
According to another aspect of the invention there is provided in combination a draught excluder according to said one aspect of the invention fixed to the bottom of a door or window and a contact member fixed to a jamb of the said door, the contact member and draught excluder being so positioned that, as the door is closed, the second strip is moved against the contact member causing the second strip to be moved into its closed position.
The invention will now be described, by way of example, with reference to the accompanying drawing, in which Figures 1A and 1B are cross-sectional views through a draught excluder, according to the invention having a hinged strip shown in an open position and a closed position, respectively,
Figure 2 is a sectional view through a door frame, the door of which has the draught excluder shown in Figure 1 fixed to the bottom thereof, and
Figures 3A and 3B are side and end views, respectively, of a spring clip of the draught excluder shown in Figure 1.
Figures 1A and 1B show an elongate draught excluder, generally designated 1, comprising an extruded aluminium strip 2 adapted to be fixed, e.g. by means of screws (not shown) passing through holes (also not shown) provided in the strip 2, to the bottom of a door 3 (see Figure 2) and an extruded aluminium strip 4 hinged to the strip 2 for hinging movement between an open position (shown in Figure 1A) and a closed position (shown in Figure 1B). The draught excluder 1 further includes an elongate, flexible seal 5 made, for example, of vinyl, neoprene elastomer rubber or formed as a brush insert and having an elongate anchor portion 6 of substantially T-section which is anchored within a substantially elongate T-section slot 7 formed along the free edge of the strip 4.The draught excluder finally comprises a pair of spaced apart spring clips 8 (only one of which can be seen in
Figures 1A and 1B) each comprising spring wire bent into a shape substantially resembling the letter "W" (see Figures 3A and 3B).
Each spring clip 8 has a central angled or peak portion 9 the tip of which is retained in an elongate slot 10 formed in the strip 2; two further angled or V-shaped portions 1 1, positioned on either side of the central angled portion 9, and having their tips retained in an elongate slot 12 formed adjacent the lower edge of the strip 2; and free arm portions 13 extending out of the plane of the portions 9 and 1 1 and acting against the inner surface of the strip 4 to urge the latter into its open position. In Figures 1A and 18 the portions 13 are shown acting against an elongate shoulder formed between the inner surface of the strip 2 and an inwardly projecting rib 14.However if it is desired to have a smaller spring force exerted by the spring clips 8, the portions 13 may be positioned to act against an elongate shoulder 15 formed between the rib 14 and the slot 7.
The hinged connection between the strips 2 and 4 is achieved by extruding strip 2 to have a hinging portion 16 in the form of a channel having a constricted opening which opens in a generally downward direction (as viewed in Figures 1A and 1B), and by extruding strip 4 to have a bead 17 formed along its upper edge (as viewed in Figures 1A and 1B). The bead 17 has a slightly smaller cross-section than that of the channel of the hinging portion 16 to enable the bead 17 to engage slidably within the channel of the hinging portion 16. Once the hinged portion 16 and bead 17 have been interengaged, a small screw 18 is screwed into a screw-threaded bore 19 (see dotted lines in Figures 1A and 1B) provided in the hinging portion 16 and opening into the constricted channel.The end of the screw projects into a slot (not shown) formed in the bead 17 in a direction perpendicular to the elongate direction of the draught excluder to prevent relative movement in the elongate direction, but to permit relative hinging movement, between the strip 2 and the strip 4. Since the channel in which the bead 17 is received is constricted, the bead 17 cannot be withdrawn from the channel in a direction transverse to the elongate direction. Furthermore, it will be appreciated that engagement of the strip 4 against the side of the channel of the hinging portion 16 limits the open position of the strip 4 so that it is displaced no more than 900 from its closed position.
Figure 2 shows the draught excluder 1 fixed to the bottom, and on the outside, of an inwardly opening external door 3. The door 3 is hinged to a vertical door jamb 20 and is movable from a closed position (shown in full lines in Figure 2) in which the door 3 is positioned between the door jamb 20 and another vertical door jamb 21 and an open position (shown in dashed lines in Figure 2).
When the door 3 is in an open position the spring clips 8 urge the strip 4 into its open position (see
Figure 1A). However as the door 3 is closed the strip 4 is moved against a roller 22 screwed to the bottom of the jamb 21, causing the strip 4 to be urged, against the spring forces exerted by the spring clips 8. into its closed position (see
Figure 1B). When the strip 4 is in its closed position the seal 5 closes any gap between the bottom of the door 3 and the sill of the door to form an effective barrier against the ingress of draughts, dust, noise and storm water. The design of the draught excluder 1 is such that the hinging portion 16 shields the hinged connection between the strips 2 and 4 from falling rain when the door is closed and the strip 4 is in its closed position.
When the door is opened, the strip 4 loses contact with the roller 22 causing the spring clips 8 to urge the strip 4 into its open position approximately 1 9mm above its closed position, thereby enabling the door 3 to be opened across a raised carpet or mat.
It should be realised that the slots 10 and 12, which are formed during extrusion of the strip 2, together define the opposite sides of a shallow slot or recess, extending throughout the length of the strip 2, for retaining one or more of the spring clips 8. The or each spring clip 8 (shown in Figures 3A and 3B) is typically formed from a spring wire material which can be easily deformed to enable spring clips 8 to be easily insert into, or removed from, this shallow slot or recess. In this manner the spring force exerted on the strip 4 can be readily adjusted in dependence on the number of spring clips 8 releasably retained in the shallow slot or recess defined by the slots 10 and 12.
Furthermore, any spring clip 8 which corrodes, e.g.
as a result of weathering, can be easily replaced so that the operation of the draught excluder is not impaired.
Another particular advantage of the described embodiment of the draught excluder 1 is that by removing the screw 18 the strips 2 and 4 can be slidably disengaged from each other to enable cleaning of the hinging portion of each strip. Such cleaning may be necessary to prevent jamming of the flap 4 caused by dirt entering the hinging portions. Disengagement of the strips 2 and 4 also facilitates fixing of the excluder to the bottom of a door, since concealed fixing holes (not shown) through which fixing screws (also not shown) are inserted - are provided in the bottom of the shallow slot or recess of the strip 2 and access to these fixing slots is difficult unless the strips are disengaged. Further fixing holes (not shown) may be provided in the strip 2 above the hinging portion 16.
In Figure 2 it will be seen that the draught excluder 1 has a length slightly shorter than the width of the door 3 to enable the draught excluder to be positioned between the jambs 21 and 22 when the door is in its closed position. However it is possible for the draught excluder 1 to have the same length as the width of the door 3. In this case it is necessary to cut recesses (not shown) in the door jambs 20 and 21, the strip 4 then being closed by engagement with a wall of the recess in the jamb 21 instead of by engagement with the roller 22.
In another embodiment of the invention (not shown), the spring clip(s) 8 may be releasably retained in a shallow slot or recess provided in the strip 4. In this case, the spring arm(s) of the spring clip(s) would act against shoulders formed on the strip 2.
Claims (20)
1. An elongate draught excluder comprises an extruded first strip having a substantially flat back surface and a first hinging portion, the first strip being adapted to be fixed to the bottom of a door or window with the said back surface in contact with the door or window, an extruded second strip having a sealing member secured thereto, the second strip incorporating a second hinging portion which is interengaged with the said first hinging portion so that the second strip is hinged to the first strip, about a hinging axis extending in the elongate direction, for hinging movement between a downwardly depending, closed position, in which a portion of the sealing member occupies a plane containing the said back surface, and an open position angled at less than 90C from said closed position, and spring means releasably retained in a slot extruded throughout the length of one of said first and second strips and resiliently urging the second strip into its open position, the second strip, when the draught excluder is fitted to the bottom of a door or window, being adapted to be moved into its closed position, as the door/window is closed, by engagement with a jamb, or means fixed to a jamb, of the door or window.
2. A draught excluder according to claim 1 , which no part of the second strip occupies the said plane containing the said back surface when the second strip is in its closed position.
3. A draught excluder according to claim 1 or 2, in which the sealing member has an elongate bead which is secured within an elongate slot formed in the second strip.
4. A draught excluder according to claim 3, in which the elongate slot formed in the second strip opens inwardly when the second strip is in its closed position.
5. A draught excluder according to claim 4, in which the said elongate slot opens inwardly in a direction substantially perpendicular to the said plane containing the said back surface when the second strip is in its closed position.
6. A draught excluder according to any of the preceding claims, in which the spring means comprises at least one spring clip.
7. A draught excluder according to claim 6, in which the or each spring clip has a portion releasably retained in said spring means retaining slot and one or two spring arms which act against the other of said first and second strips.
8. A draught excluder according to claim 7, in which the or each spring arm acts against one of two or more shoulders formed on the inner surface of the said other strip, the shoulder against which the or each arm acts determining the magnitude of the spring force with which the second strip is urged into its open position.
9. A draught excluder according to any of the preceding claims, in which the said spring means retaining slot is formed in the said first strip.
10. A draught excluder according to any of the preceding claims, in which the said hinging portions constitute extruded parts which are slidably interengaged with each other, stop means being provided to prevent relative sliding between the said first and second strips after the hinging portions have been slidably interengaged.
1 A draught excluder according to claim 10, in which one of said hinging portion partly surrounds the other of said hinging portions, and in which the stop means comprises a slot formed in the surrounded hinging portion in a plane substantially perpendicular to the said hinging axis, and a projecting member fixed in the surrounding hinging portion and projecting into the slot formed in the surrounded hinging portion.
12. A draught excluder according to claim 1 1, in which the said projecting member is screwthreaded and is removably screwed into a screwthreaded bore provided in the surrounding hinging portion.
13. A draught excluder according to any of the preceding claims, in which the first hinging portion is in the form of a channel having a restricted opening throughout its length and which is arranged so that, in use of the draught excluder, the channel opens in a downward direction, and in which the second hinging portion is in the form of a bead extending along the upper edge of the second strip, the cross-section of the bead being slightly smaller than that of the channel.
14. A draught excluder according to any of the preceding claims in which the sealing member is secured to the second strip adjacent its lower edge.
1 5. A draught excluder according to any of the preceding claims, in which the sealing member is in the form of a flexible neoprene elastomer rubber seal or a flexible vinyl seal.
16. A draught excluder according to any of claims 1 to 14, in which the sealing member is in the form of a flexible, elongate brush.
1 7. A draught excluder according to any of the preceding claims, in which the first and second strips are extruded from metal.
18. A draught excluder according to claim 17, in which the first and second strips are extruded from aluminium.
1 9. A draught excluder according to any of the preceding claims fixed to the bottom of a door or window in combination with a contact member fixed to a jamb of the said door or window, the contact member and draught excluder being so positioned that, as the door is closed, the second strip is moved against the contact member causing the second strip to be moved into its closed position.
20. A draught excluder constructed and arranged substantially as herein described with reference to, and as illustrated in, Figures 1A, 1B, 2, 3A and 3B of the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7935099A GB2060040B (en) | 1979-10-10 | 1979-10-10 | Draught excluder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7935099A GB2060040B (en) | 1979-10-10 | 1979-10-10 | Draught excluder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2060040A true GB2060040A (en) | 1981-04-29 |
| GB2060040B GB2060040B (en) | 1983-05-05 |
Family
ID=10508401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7935099A Expired GB2060040B (en) | 1979-10-10 | 1979-10-10 | Draught excluder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2060040B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220220A (en) * | 1988-07-02 | 1990-01-04 | Marston & Co Ltd Albert | Door sealing means |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507784B (en) * | 2015-12-31 | 2017-07-28 | 天津市佐佳奇装饰材料制造有限公司 | A kind of door bottom sealing device |
| CN106761312B (en) * | 2016-12-28 | 2019-06-11 | 天津市佐佳奇装饰材料制造有限公司 | A kind of side driving rubber sheet type door bottom sealing device |
| CN106703655A (en) * | 2016-12-28 | 2017-05-24 | 天津市佐佳奇装饰材料制造有限公司 | Sealer with elastic sheets |
| CN106837125B (en) * | 2016-12-28 | 2019-06-11 | 天津市佐佳奇装饰材料制造有限公司 | A kind of automatic lifting door seal equipment |
-
1979
- 1979-10-10 GB GB7935099A patent/GB2060040B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220220A (en) * | 1988-07-02 | 1990-01-04 | Marston & Co Ltd Albert | Door sealing means |
| GB2220220B (en) * | 1988-07-02 | 1992-07-22 | Marston & Co Ltd Albert | Door sealing means |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2060040B (en) | 1983-05-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |