EP0096588B1 - An assembly for sealing doors - Google Patents
An assembly for sealing doors Download PDFInfo
- Publication number
- EP0096588B1 EP0096588B1 EP83303296A EP83303296A EP0096588B1 EP 0096588 B1 EP0096588 B1 EP 0096588B1 EP 83303296 A EP83303296 A EP 83303296A EP 83303296 A EP83303296 A EP 83303296A EP 0096588 B1 EP0096588 B1 EP 0096588B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- sealing member
- edge
- sealing
- assembly
- 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.)
- Expired
Links
Images
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
- E06B7/2305—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
- E06B7/2309—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 hollow sealing part
Definitions
- This invention relates to an assembly for sealing doors more particularly, but not exclusively to sealing refrigerated van doors.
- a flexible seal of substantially 'U' shaped cross section is provided, the arms of the 'U' extend in a direction parallel to the plane of the door and cooperate with a door frame or pillar surrounding the door to be sealed.
- the lengths of the arms are crucial because too short a length would not ensure a sufficient seal and too long a length would increase the resistance necessary to pull open the sealed door due to the tips of the arms becoming bent and catching the door frame or pillar.
- Such seals are susceptible to wear and tear and therefore need replacing, this involves complete dismantling of the sealing arrangement. In addition to being unnecessarily expensive to replace it is also time consuming during which time the van is rendered inoperative and meanwhile losing business.
- US 3,555,734 discloses a sealing apparatus employing a gasket having a stiff backing strip and parallel resilient loops integral therewith.
- the gasket is mounted on a frame of a closure with the loops projecting in the direction of closing of the closure.
- the loops act to provide a seal between the edge of the closure and the edge of the frame.
- Hollow seals have previously been proposed having a circular cross-section but these have previously only been used as a compression seal and therefor extend in a direction transverse to the plane to the door.
- GB 792,194 discloses a gasket of circular cross-section which is disposed along an edge of a door (Fig. 3) for providing a seal between the edge of the door and frame.
- the gasket is illustrated only as being compressed. There is no indication that the gasket undergoes a shearing movement.
- FIG. 1 there is provided a part of a section of a door frame of a refrigerated container which frame 9 delimits an aperture in the container for receiving a door 1 and a sealing assembly 20.
- the sealing assembly 20 is attached to the edges of the door for providing a seal between said door and said frame.
- one advantage of the present invention is that the sealing assembly may be attached to a door for use in sealing the door with a variety of differently constructed door frames for example the frames shown in Figures 2 and 3.
- the door 1 has parallel front and back panels 10 and 11 respectively.
- the front panel 10 extends slightly beyond the back panel 11.
- the sealing assembly is attached on each edge of the door between the front and back panels 10 and 11 and comprises a substantially rigid member 2 for attachment to the inside of the panels 10 and 11 in the region of the periphery thereof for closing the gap therebetween.
- the rigid member 2 is preferably arranged to lie substantially flush with the periphery of the panels 10 and 11 and because the front panel 10 extends slightly beyond the back panel 11 the rigid member 2 tapers along a substantial length between one panel and the other.
- the rigid member 2 has a recess 3 between the front and back panels for receiving a holder 4 which has a C-shaped cross section and may have serrated sides for additional grip with the recess 3 when the rigid member 2 is moulded around the holder 4.
- a first sealing member 5 made from suitably flexible material such as P.V.C. capable of being compressed and advantageously capable of withstanding temperatures in the region of -40°C without degradation of its properties and having retaining means 14 extending from the base thereof for being removably located in said holder.
- the sealing member 5 protrudes outwardly from the holder 4 in a direction parallel to the plane of the door and in use communicates in a compressed condition with a door frame or pillar 9 surrounding the door 1. Between the frame 9 and the door 1 there is provided a gap no less than the height of the seal when fully compressed so as to enable the seal to be inserted.
- a secondary, conventional, sealing member 8 advantageously fixed to the rigid member 2 in the region of the rigid member 2 adjacent the front panel 10 of the door 1, which sealing member 8 co-operates with the face of the front panel 10 and when in use co-operates with the outer face of the door frame 9 providing a seal between the frame 9 and front panel 10.
- FIG. 1 One type of door frame to be sealed with the door including a sealing assembly as described above is shown in Figure 1 in which the door frame 9 may be provided with a tapping plate 13 preferably welded on the inside of the outer wall of the door frame similarly a tapping plate 13 may be provided on the inside of the front panel 10 of the door 1, for providing means to hinge the door 1 on either side of the frame 9.
- the door frame 9 may be surrounded by a shield 12 as shown in Figures 1 and 2 but advantageously the part of the door frame 9 which co-operates with the seal 5 when in use should be heat insulative. However if the shield 12 is made from conductive material then the shield 12 may be isolated from the interior of the container by providing a suitable heat break with which the sealing member 5 co-operates when the door is in position in the door frame 9 as shown in Figure 2.
- the fact that the edge of the door is tapered means that as the door is closed, the sealing member 5 is subjected to both a compressive force and a shearing force which increase as the door shuts.
- the member 5, which is air-filled, thus effectively seals the gap between the door and door frame.
- FIG. 2 An alternative construction of the door frame is shown in Figure 2 and is used primarily for the bottom or floor section of the container.
- the door frame 9 adjacent the door edge is angled to be parallel to the tapering portion of the door edge until the level of the floor is reached.
- the heat break 6, previously mentioned is provided and the sealing member is arranged to cooperate therewith to isolate the interior, and the metal floor of the container from ambient atmosphere.
- the sealing member 5 is again under both compressive and shearing forces in this arrangement.
- shield 12 and the plate or wall 7 may be made of the same material and may be of one material moulded or bent around the heat break 6.
- FIG. 3 Another variation of the door frame construction is shown in Figure 3 in which the door frame 9 has an edge which is of registering shape to the edge of the door 1 i.e. the door frame has a first portion extending substantially at right angles from the outer wall 12 for co-operation with the sealing member 8 and an angled portion which is arranged to be parallel to the tapered portion of the door when the door is in its closed position. This arrangement again caused compression and shearing forces to be exerted on the sealing member 5.
- Figure 4 shows a preferred form of the sealing member 5 suitable for use in the above mentioned sealing assembly.
- the sealing member has a pear shaped cross section and retaining means extending from the narrow part of the sealing member capable of being removably located in the holder 4.
- the "pear" part of the upper part of the sealing member 5 projects from the holder and by virtue of its material and wall thickness is capable of being compressed by say 1/7th of its original height and when in a compressed condition is capable of shearing for providing a "rolling action".
- the air trapped inside the upper part of the seal provides an insulator between the air on either side of the seals and in addition to the air trapped between the secondary seal and the part of the door frame 9 opposite the secondary seal which acts as an insulator between the atmosphere and the air between the secondary seal member and the first sealing member provides a substantially airtight, thermotight seal.
- the sealing member 5 is longitudinal and the retaining means 14 preferably 'T' shaped whereby the bar of the T can be slid along the holder 4 on each side of the door 1. At the corners of the door 1 the sealing member 5 on one side is bonded with the sealing member 5 on the adjacent side to form a mitre edge.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Refrigerator Housings (AREA)
- Gasket Seals (AREA)
Abstract
Description
- This invention relates to an assembly for sealing doors more particularly, but not exclusively to sealing refrigerated van doors.
- In the type of door seals known as finger seals a flexible seal of substantially 'U' shaped cross section is provided, the arms of the 'U' extend in a direction parallel to the plane of the door and cooperate with a door frame or pillar surrounding the door to be sealed. The lengths of the arms are crucial because too short a length would not ensure a sufficient seal and too long a length would increase the resistance necessary to pull open the sealed door due to the tips of the arms becoming bent and catching the door frame or pillar. Such seals are susceptible to wear and tear and therefore need replacing, this involves complete dismantling of the sealing arrangement. In addition to being unnecessarily expensive to replace it is also time consuming during which time the van is rendered inoperative and meanwhile losing business.
- US 3,555,734 discloses a sealing apparatus employing a gasket having a stiff backing strip and parallel resilient loops integral therewith. The gasket is mounted on a frame of a closure with the loops projecting in the direction of closing of the closure. The loops act to provide a seal between the edge of the closure and the edge of the frame.
- Hollow seals have previously been proposed having a circular cross-section but these have previously only been used as a compression seal and therefor extend in a direction transverse to the plane to the door.
- GB 792,194 discloses a gasket of circular cross-section which is disposed along an edge of a door (Fig. 3) for providing a seal between the edge of the door and frame. In the disclosure the gasket is illustrated only as being compressed. There is no indication that the gasket undergoes a shearing movement.
- It is an object of the present invention to provide a sealing assembly for sealing doors which assembly includes a sealing member capable of providing a "rolling action" during operation of the assembly. As a result of this "rolling action" it is possible to provide a substantially airtight and thermotight seal which an opening does not catch and opens with relatively low resistance.
- It is another object of the present invention to provide a sealing member for use in an assembly which is removably located in a holder for allowing replacement of the seal to be done relatively quickly and cheaply.
- An example of a preferred construction according to the present invention will now be described by way of example only, with reference to the accompanying drawings in which:-
- Figure 1 shows a section through a part of a door frame and a part of a door including an assembly according to the present invention;
- Figure 2 shows a section through a further part of a door frame and the part of the door as shown in Figure 1;
- Figure 3 shows a section through yet a further part of a door frame and the part of the door as shown in Figure 1; and
- Figure 4 shows a section through a sealing member included in an assembly as shown in Figures 1 to 3.
- As shown in Figure 1 there is provided a part of a section of a door frame of a refrigerated container which
frame 9 delimits an aperture in the container for receiving adoor 1 and asealing assembly 20. Thesealing assembly 20 is attached to the edges of the door for providing a seal between said door and said frame. When in use one advantage of the present invention is that the sealing assembly may be attached to a door for use in sealing the door with a variety of differently constructed door frames for example the frames shown in Figures 2 and 3. - The
door 1 has parallel front andback panels front panel 10 extends slightly beyond theback panel 11. - The sealing assembly is attached on each edge of the door between the front and
back panels rigid member 2 for attachment to the inside of thepanels rigid member 2 is preferably arranged to lie substantially flush with the periphery of thepanels front panel 10 extends slightly beyond theback panel 11 therigid member 2 tapers along a substantial length between one panel and the other. - The
rigid member 2 has a recess 3 between the front and back panels for receiving aholder 4 which has a C-shaped cross section and may have serrated sides for additional grip with the recess 3 when therigid member 2 is moulded around theholder 4. A first sealingmember 5 made from suitably flexible material such as P.V.C. capable of being compressed and advantageously capable of withstanding temperatures in the region of -40°C without degradation of its properties and having retainingmeans 14 extending from the base thereof for being removably located in said holder. The sealingmember 5 protrudes outwardly from theholder 4 in a direction parallel to the plane of the door and in use communicates in a compressed condition with a door frame orpillar 9 surrounding thedoor 1. Between theframe 9 and thedoor 1 there is provided a gap no less than the height of the seal when fully compressed so as to enable the seal to be inserted. - In addition to the
first sealing member 5 there is provided a secondary, conventional, sealing member 8 advantageously fixed to therigid member 2 in the region of therigid member 2 adjacent thefront panel 10 of thedoor 1, which sealing member 8 co-operates with the face of thefront panel 10 and when in use co-operates with the outer face of thedoor frame 9 providing a seal between theframe 9 andfront panel 10. - One type of door frame to be sealed with the door including a sealing assembly as described above is shown in Figure 1 in which the
door frame 9 may be provided with atapping plate 13 preferably welded on the inside of the outer wall of the door frame similarly a tappingplate 13 may be provided on the inside of thefront panel 10 of thedoor 1, for providing means to hinge thedoor 1 on either side of theframe 9. Thedoor frame 9 may be surrounded by ashield 12 as shown in Figures 1 and 2 but advantageously the part of thedoor frame 9 which co-operates with theseal 5 when in use should be heat insulative. However if theshield 12 is made from conductive material then theshield 12 may be isolated from the interior of the container by providing a suitable heat break with which the sealingmember 5 co-operates when the door is in position in thedoor frame 9 as shown in Figure 2. - In use, the fact that the edge of the door is tapered means that as the door is closed, the sealing
member 5 is subjected to both a compressive force and a shearing force which increase as the door shuts. Themember 5, which is air-filled, thus effectively seals the gap between the door and door frame. - An alternative construction of the door frame is shown in Figure 2 and is used primarily for the bottom or floor section of the container. The
door frame 9 adjacent the door edge is angled to be parallel to the tapering portion of the door edge until the level of the floor is reached. At this point theheat break 6, previously mentioned, is provided and the sealing member is arranged to cooperate therewith to isolate the interior, and the metal floor of the container from ambient atmosphere. The sealingmember 5 is again under both compressive and shearing forces in this arrangement. - It will be appreciated that the
shield 12 and the plate or wall 7 may be made of the same material and may be of one material moulded or bent around theheat break 6. - Another variation of the door frame construction is shown in Figure 3 in which the
door frame 9 has an edge which is of registering shape to the edge of thedoor 1 i.e. the door frame has a first portion extending substantially at right angles from theouter wall 12 for co-operation with the sealing member 8 and an angled portion which is arranged to be parallel to the tapered portion of the door when the door is in its closed position. This arrangement again caused compression and shearing forces to be exerted on the sealingmember 5. - Figure 4 shows a preferred form of the sealing
member 5 suitable for use in the above mentioned sealing assembly. The sealing member has a pear shaped cross section and retaining means extending from the narrow part of the sealing member capable of being removably located in theholder 4. The "pear" part of the upper part of the sealingmember 5 projects from the holder and by virtue of its material and wall thickness is capable of being compressed by say 1/7th of its original height and when in a compressed condition is capable of shearing for providing a "rolling action". When operating said assembly for operation of said assembly the door having been hinged to adoor frame 9 as shown for example in Figures 1 to 3 is closed, the sealingmember 5 comes into contact with theframe 9, because the gap between the door frame and door is smaller than the height of the sealingmember 5 the sealing member compresses and by shearing rolls into position. - The air trapped inside the upper part of the seal provides an insulator between the air on either side of the seals and in addition to the air trapped between the secondary seal and the part of the
door frame 9 opposite the secondary seal which acts as an insulator between the atmosphere and the air between the secondary seal member and the first sealing member provides a substantially airtight, thermotight seal. - On opening the
door 1 the first sealingmember 5 "rolls" back with minimal resistance. - In the preferred embodiment of the present invention the sealing
member 5 is longitudinal and the retaining means 14 preferably 'T' shaped whereby the bar of the T can be slid along theholder 4 on each side of thedoor 1. At the corners of thedoor 1 the sealingmember 5 on one side is bonded with the sealingmember 5 on the adjacent side to form a mitre edge. - It will be appreciated by those in the art that variations to the embodiments may be made without going outside the scope of the present invention as described above.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83303296T ATE22959T1 (en) | 1982-06-07 | 1983-06-07 | DOOR SEALING KIT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8216460 | 1982-06-07 | ||
GB8216460 | 1982-06-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0096588A2 EP0096588A2 (en) | 1983-12-21 |
EP0096588A3 EP0096588A3 (en) | 1984-04-04 |
EP0096588B1 true EP0096588B1 (en) | 1986-10-15 |
Family
ID=10530868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83303296A Expired EP0096588B1 (en) | 1982-06-07 | 1983-06-07 | An assembly for sealing doors |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0096588B1 (en) |
AT (1) | ATE22959T1 (en) |
DE (1) | DE3366990D1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8625317D0 (en) * | 1986-10-22 | 1986-11-26 | Britel A | Door hinge safety arrangement |
US5941622A (en) * | 1997-08-12 | 1999-08-24 | Davidson; Duane G. | End member for food display case |
GB2369848A (en) * | 2000-12-06 | 2002-06-12 | Alistair John Freeman | A door and door frame arrangement and flood protection means |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7512256U (en) * | 1975-08-14 | Frank W Gmbh | Window, door. like | |
GB792194A (en) * | 1954-12-03 | 1958-03-19 | Jones Stroud And Company Ltd | Improvements in and relating to sealing elements or gaskets |
US3383815A (en) * | 1966-02-17 | 1968-05-21 | Ceco Corp | Combination baffled weep and pressure equalization slot |
US3555734A (en) * | 1969-04-07 | 1971-01-19 | Bolt Beranek & Newman | Closure sealing apparatus |
-
1983
- 1983-06-07 AT AT83303296T patent/ATE22959T1/en not_active IP Right Cessation
- 1983-06-07 EP EP83303296A patent/EP0096588B1/en not_active Expired
- 1983-06-07 DE DE8383303296T patent/DE3366990D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3366990D1 (en) | 1986-11-20 |
EP0096588A2 (en) | 1983-12-21 |
ATE22959T1 (en) | 1986-11-15 |
EP0096588A3 (en) | 1984-04-04 |
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