WO2012107259A1

WO2012107259A1 - Blast protection door

Info

Publication number: WO2012107259A1
Application number: PCT/EP2012/050636
Authority: WO
Inventors: Jonathan NOBBS
Original assignee: Assa Abloy Entrance Systems Ab
Priority date: 2011-02-09
Filing date: 2012-01-17
Publication date: 2012-08-16
Also published as: GB2502456A; GB2502456B; GB201312519D0

Abstract

The invention relates to a blast protected door package comprising a panel of a blast-resistant material, a frame provided around the perimeter of the panel, comprising a first pair of frame members mounted along a pair of opposing perimeter edges of said panel and a second pair of frame members mounted along the other pair of perimeter edges of the panel and wherein said door package further comprises a L-shaped support portion for receiving said panel, said support portion comprising a back leg for supporting said edge part of said panel and a bottom leg comprising an engaging member, said support portion being fixed onto said frame members, a L-shaped bead member comprising a back leg for supporting said edge part of said panel and a bottom leg comprising an engaging members for mechanically engaging with said engaging member of said support portion such that a U-shaped frame for enclosing edge portion of the panel is being provided.

Description

BLAST PROTECTION DOOR TECHNICAL FIELD

The present invention relates to the field of sliding doors and, in particularly, to sliding blast protected doors suitable for withstanding explosions, such as bomb blast and to the method of mounting and removal of the panel of such a blast protected door. BACKGROUND ART

Sliding doors or revolving doors are commonly used e.g. in commercial, health and residential applications.

A sliding door system typically comprises door panels attached to wheel carriages running in a sliding track. Known systems suffers the disadvantage that, in the event of an explosion, the force of the blast can drive the beading portion from the door frame allowing the panel or parts thereof to become detached and throwed away from the frame. This clearly presents a danger to any persons or objects in the vicinity. A finding of an easy way to securely lock/fasten the panel of the blast protected door, which prevents the panel or parts thereof to become detached, would be most welcome.

In particular, there is a need to be able to securely lock/fasten panels of different thickness without having to change any parts of the frame.

SUMMARY OF THE INVENTION

With the above description in mind, then, an aspect of the present invention is to provide a blast protected door, which seeks to mitigate, alleviate or eliminate one or more of the above-identified deficiencies in the art and disadvantages singly or in any combination.

An aspect of the present invention relates to a blast protected door package comprising a panel of a blast-resistant material, frame provided around the perimeter of the panel, comprising a first pair of frame members mounted along a pair of opposing perimeter edges of said panel and a second pair of frame members mounted along the other pair of perimeter edges of the panel. The door package further comprises a L- shaped support portion for receiving said panel, said support portion comprising a back leg for supporting said edge part of said panel and a bottom leg comprising an engaging member, said support portion being fixed onto said frame members; a L-shaped bead member comprising a back leg for supporting said edge part of said panel and a bottom leg comprising an engaging member for mechanically engaging with said engaging member of said support portion such that a U-shaped frame for enclosing edge portion of the panel is being provided.

In some embodiments, said engaging member of said support portion comprises two hooks and said engaging member of said bead member comprises at least two hooks.

In some embodiments, said engaging member of said bead member comprises three hooks.

In some embodiments, a glazing tape is fitted onto the inside of said back leg of said bead member and a sealant is filled between said panel and the inside of said back leg of said support portion.

In some embodiments, a gasket is provided between the back leg of the support portion and the panel and the back leg of the bead member and the panel. Another aspect of the present invention relates to a method for mounting said panel onto a U-shaped frame comprising the steps of:

- fitting panel tight onto the inside of a back leg of a L-shaped support portion of said frame;

- providing a glazing tape onto the inside of a back leg of a L-shaped bead member of said frame;

- placing engagement member of the bead member, provided on the outside of a bottom leg of the bead member, in a position, over engagement member of the support portion, provided on the inside of a bottom leg of said support portion;

- mechanically engaging said engagement members by pushing said bead member;

- pulling said panel towards said glazing tape for making contact with said glazing tape;

- filling the space between said panel and said back leg of said support portion with a sealant.

The features of the above-mentioned embodiments can be combined in any combinations. Some embodiments of the invention provide a support portion mechanically engaged with a bead member and thus providing a U-shaped frame for receiving the panel. It is an advantage with some embodiments of the invention that the support portion and the bead member is L-shaped and formed in one piece. DESCRIPTION OF THE DRAWINGS

Further objects, features and advantages of the present invention will appear from the following detailed description of the invention, wherein embodiments of the invention will be described in more detail with reference to the accompanying drawings, in which: FIG. 1 a is a detailed cross sectional view of a portion of frame member, a U-shaped receiving frame and a portion of a panel of the blast door package according to one embodiment of the present invention;

Fig. 1 b is a detailed cross sectional view of a portion of frame member, a U-shaped receiving frame and a portion of a panel of the blast door package of fig 1 a in a sealed position;

Fig. 2a is a detailed cross sectional view of a portion of frame member, a U-shaped receiving frame and a portion of a panel of the blast door package according to one embodiment of the present invention; Fig. 2b is a detailed cross sectional view of a portion of frame member, a U-shaped receiving frame and a portion of a panel of the blast door package fig 2a in a sealed position;

Fig 3a-3c is a detailed cross sectional view of a portion of a frame member, a U-shaped receiving frame and a portion of a panel of the blast door package when mounting the panel onto the receiving frame according to the present invention; and

Fig 3d is a detailed cross sectional view of a portion of a frame member, a U-shaped receiving frame and a portion of a panel of the blast door package when removing the panel from the receiving frame according to the present invention.

DETAILED DESCRIPTION

Embodiments of the present invention relate, in general, to the field of blast protected sliding doors.

Embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference signs refer to like elements throughout.

With reference to fig 1 a and 1 b, a blast protected door package is provided comprising a substantially rectangular panel 1 of a blast-resistant material, a frame provided around the perimeter of the panel, the frame comprising a first pair of frame members 2 mounted along a pair of opposing perimeter edges of the panel 1 and a second pair of frame members 2 mounted along the other pair of perimeter edges of the panel 1 , thereby forming a door.

Each of the frame members 2 is, at the side portions 20, provided with a U-shaped receiving frame for receiving the panel 1 . The receiving frame comprises one L-shaped panel support portion 3 and one L- shaped bead member 7.

The L-shaped panel supporting porton 3 is provided with a back leg 4 and a bottom leg 5 for supporting the perimeter edge of the panel. The bottom leg 5 is provided with one or several engagement members 6. The panel supporting portion 3 is attached onto the side portions 20 of the frame members 2 with a fastening mean 1 1 , such a screw. The engagement member 6 of the panel supporting portion 3 may be intergrally formed on the inside of the bottom leg 5. The engagement members 6 may be one or several hook-like shaped receiving pieces, pins or the like.

The back leg 4 and bottom leg 5 of the panel support portion 3 may be of different length.

The back leg 4 and bottom leg 5 of the panel support portion 3 may be of different shape or form.

The L-shaped bead member 7 is provided with a back leg 8 and a bottom leg 9 for supporting the perimeter edge of the panel. The bottom leg 9 is provided with one or several engagement members 10. The engagement members 10 may be intergrally formed on the outside of the bottom leg 9. The engagement member 10 may be one or several hook-like shaped receiving pieces, pins or the like.

The back leg 8 and bottom leg 9 of the bead member 7 may of be different length.

The back leg 8 and bottom leg 9 of the bead member 7 may be of different shape or form.

The bead member 7 may be attached to the panel support portion 3 by mechanically egagement between the engagement members 6, 10 such that a U-shaped receiving frame for receiving the perimeter edge portion of the panel is provided, where the panel support portion and the bead member are interlocked beneth the edge portion of the panel. The engagment members of the bead member 7 are adapted to be slid or be moved towards the engagement members of the panel support portion and thus interlocking with the engagement members of the panel support portion.

The bead member may be attached to the panel support portion at different positions, as shown in fig 2a and 2b, dependent of sizes of the panel.

In this structure, the bead member 7 does not come off the panel support portion 3 even when the panel 1 is pressed towards the panel support portion by large force, such as an explosion, as indicated by an arrow A.

The edge portion of the panel extends between the panel support portion 3 and the bead member 7.

A glazing tape 12 may be provided between the back leg 8 of the bead member 7 and a first surface 21 of the edge portion of the panel 1 . A sealant 13 may be applied between the second surface 22 of the edge portion of the panel and the back leg 4 of the panel support portion 3. The sealant may be silicone.

A gasket 14 may be fitted between the first surface 21 of the edge portion of the panel and the upper part of the back leg 8 of the bead member 7.

A gasket 15 may be fitted between the second surface 22 of the edge portion of the panel 1 and the upper part of the back leg 4 of the panel support portion 3.

The receiving frame is assembled with the panel as follows.

As is shown in fig 3a, the panel is fitted as close as possibel towards the back leg of the panel support portion 3.

As shown in fig 3b, a glazing tape is pre-fit to the inside of the back leg of the bead member. The bead member is tilted to place the engagement members 10 of the bead member 7 in position over the engagement members of the panel support portion. The bead member may be pulled backwards fully such that the engement members 10 of the bead member 7 are interlocked with the engagement members 6 of the panel support portion 3.

As shown in fig 3c, the panel 1 may be pulled forward to make contact with the glazing tape 12. The space between the back leg 4 of the panel support portion 3 and the panel 2 may be filled with a sealant 13, such as silicone. Gaskets 14, 15 may be provided at the upper edge of each of the back legs 4, 8 for supporting the panel 1 even more, this is not shown.

As shown in fig 3d, the panel may be removed from the receiving frame, by cuttin out the sealant. The glazing tape bond may be broken and the bead member may be tilted backwards to release the bead member from the panel support portion and thus removing the panel. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" "comprising," "includes" and/or "including" when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The foregoing has described the principles, preferred embodiments and modes of operation of the present invention. However, the invention should be regarded as illustrative rather than restrictive, and not as being limited to the particular embodiments discussed above. The different features of the various embodiments of the invention can be combined in other combinations than those explicitly described. It should therefore be appreciated that variations may be made in those embodiments by those skilled in the art without departing from the scope of the present invention as defined by the following claims.

Claims

1 . A blast protected door package comprising:

a panel (1 ) of a blast-resistant material;

a frame provided around the perimeter of the panel, comprising a first pair of frame members (2) mounted along a pair of opposing perimeter edges of said panel and a second pair of frame members (2) mounted along the other pair of perimeter edges of the panel; and wherein said door package further comprises:

a L-shaped support portion (3) for receiving said panel, said support portion comprising a back leg (4) for supporting said edge part of said panel and a bottom leg (5) comprising an engaging member (6), said support portion (3) being fixed onto said frame members (2); a L-shaped bead member (7) comprising a back leg (8) for supporting said edge part of said panel (2) and a bottom leg (9) comprising an engaging member (10) for mechanically engaging with said engaging member (6) of said support portion (3) such that a U- shaped frame for enclosing edge portion of the panel is being provided.

2. The blast protected door package according to claim 1 , wherein said engaging member (6) of said support portion (3) comprises two hooks and said engaging member (10) of said bead member (7) comprises at least two hooks.

3. The blast protected door package according to claim 1 or 2, wherein said engaging member (10) of said bead member (7) comprises three hooks.

4. The blast protected door package according to any of the claims 1 to 3, wherein a glazing tape (12) is fitted onto the inside of said back leg (8) of said bead member (7) and a sealant (13) is filled between said panel (1 ) and the inside of said back leg (4) of said support portion (3).

5. The blast protected door package according any of the claims 1 to 4. wherein a gasket (14, 15) is provided between the back leg (4) of the support portion (3) and the panel (1 ) and the back leg (8) of the bead member (7) and the panel (1 ).

A method for mounting a panel of a blast-resistant material onto a U- shaped frame comprising the steps of:

- fitting panel (1 ) tight onto the inside of a back leg (4) of a L-shaped support portion (3) of said frame;

- providing a glazing tape (12) onto the inside of a back leg (8) of a L-shaped bead member (7) of said frame;

- placing engagement member (10) of the bead member (7), provided on the outside of a bottom leg (9) of the bead member (7), in a position, over engagement member (6) of the support portion (3), provided on the inside of a bottom leg (5) of said support portion (3);

- mechanically engaging said engagement members (6, 10) by pushing said bead member (7);

- pulling said panel (1 ) towards said glazing tape (12) for making contact with said glazing tape (12);

- filling the space between said panel (1 ) and said back leg (8) of said support portion (3) with a sealant (13).