GB2238071A - Glass retaining member - Google Patents
Glass retaining member Download PDFInfo
- Publication number
- GB2238071A GB2238071A GB9024545A GB9024545A GB2238071A GB 2238071 A GB2238071 A GB 2238071A GB 9024545 A GB9024545 A GB 9024545A GB 9024545 A GB9024545 A GB 9024545A GB 2238071 A GB2238071 A GB 2238071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- panel
- sheet
- retaining member
- retaining
- 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- Withdrawn
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
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary
- E06B5/116—Arrangements preventing the removal of glazing panels
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
A glass retaining member (35) comprises a frame-engaging portion (38) to be inserted into an inwardly-facing feature, e.g. a groove (30), in a frame member (12), a panel-engaging portion (42) to engage a glazing panel (22) in the frame (10), and first and second panel edge-engaging portions (44, 46) which engage edges of the panel (22) which meet at a corner. The frame-engaging portion (38) retains the member (36) in the frame (10), the panel-engaging portion (42) prevents the panel (22) from moving out of the frame (10) past the member (36) and the panel edge-engaging portions (44, 46) prevent the frame-engaging portion (38) from being withdrawn from or moved along the feature. <IMAGE>
Description
GLASS RETAINING MEMBER
This invention is concerned with a retaining member for use in retaining a glass sheet or a glazing panel in a frame of a window or door. The invention is also concerned with a method of securing a glass sheet or a glazing panel in a frame.
In conventional glazing, a frame consisting of four members joined at the corners extends around a glass sheet or a glazing panel, which consists of two or more sheets of glass separated by spacers joined together to form a unit. The frame members may be extrusions of, e.g., UPVC or aluminium or a combination thereof.
Conventionally, the frame has an abutment portion, formed by an upstanding projection on each frame member, which forms a rebate which prevents the glazing panel from leaving the frame in a first direction which is normally inwardly of the building in which the window or door is mounted but may be outwardly of the building. The glass sheet or glazing panel normally engages a gasket which is retained by the abutment portion of the frame and acts to prevent moisture from entering between the sheet or panel and the abutment portion. The frame also comprises an inwardly-facing groove, i.e. the portion of the groove formed in each frame member opens towards the centre of the frame, which is adapted to receive glazing beading which prevents the glazing panel from leaving the frame in a direction opposite to said first direction. A gasket retained by the beading engages the sheet or panel.
With such conventional glazing, a security problem arises in that, where the beading is on the outside of the building, an unauthorised person equipped with a thin-bladed tool, such as a putty knife, can sometimes lever out the glazing beading, remove the glazing panel, and gain access to the building. Where the beading is on the inside, pressure from outside on the sheet or panel, e.g. by a kick, can sometimes displace the beading allowing the sheet or panel to fall inwardly and allowing unauthorised access to the building. Various proposals have been made for reducing this problem. One suggestion involves using an adhesive-coated gasket for sticking the sheet or panel to the frame but this creates difficulty in authorised removal, e.g. in replacement of broken glass.Some suggestions involve use of rivets or screws securing retaining members to the frame but these complicate the assembly process and retain the difficulty of authorised removal. Another suggestion is to utilise a number of clips which fit over the edge of the sheet or panel and have legs which locate in the groove in the frame to resist removal of the sheet or panel In some circumstances, however, such clips can be levered out of the groove or be displaced by sliding to one edge of the sheet or panel so that the sheet or panel can be removed.
It is an object of the present invention to provide a retaining member for use in retaining a glass sheet or glazing panel which overcomes the security problem referred to above without complicating the assembly process or making authorised removal difficult.
The invention provides a retaining member for use in retaining a glass sheet or glazing panel in a frame, the retaining member comprising
a frame-engaging portion arranged to be positioned against an inwardly-extending surface of a feature of a member of the frame to prevent the retaining member from moving out of the frame in one direction,
a sheet or panel-engaging portion arranged to engage a portion of a sheet or panel in the frame to prevent the sheet or panel from moving out of the frame in said direction past the retaining member,
a first sheet or panel edge-engaging portion arranged to engage a first edge of the sheet or panel in the frame to prevent the frame-engaging portion of the retaining member from being moved clear of the feature inwardly of the frame, and
a second sheet or panel edge-engaging portion arranged to engage a second edge of the sheet or panel which meets said first edge at a corner of the sheet or panel to prevent movement of the retaining member in a direction parallel to said feature.
A retaining member according to the last preceding paragraph resists removal of the sheet or panel since the sheet or panel cannot be moved past the retaining member which itself is retained in the frame by engagement of the frame-engaging portion with the feature of the frame.
The retaining member resists removal or displacement by virtue of the edge-engaging portions engaging the edges of the sheet or panel preventing withdrawal of the frame-engaging portion from the feature and displacement thereof along the feature. Thus, the security problem mentioned above is solved without the use of adhesive, rivets or screws. The frame-engaging portion may be inserted into a groove, which may be the groove which retains the glazing beading or an additional groove, so that one side surface of the groove retains the retaining member against moving out of the frame as aforementioned and the opposite side surface of the groove retains the member against movement in the opposite direction which may be useful for assembly purposes. Alternatively, the frame-engaging portion may be positioned against a side surface of a ridge projecting inwardly of the frame.
In order to increase the strength of engagement between the retaining member and the frame, the retaining member may comprise a further frame-engaging portion arranged to be positioned against an inwardly-extending surface of a further member of the frame which meets said member of the frame at a corner of the frame. In this arrangement, the two panel edge-engaging portions each resist movement of one of the frame-engaging portions clear of its respective feature and also the displacement of the other frame-engaging portion parallel to its respective feature.
In order to reduce the possibility that the retaining member can be removed from the frame by tilting it, the retaining member may comprise a projection from the or each of the frame-engaging portions thereof, the projection extending tranversely of the feature when the frame-engaging portion is positioned as aforesaid and thereby reducing the possibility of the retaining member tilting relative to the feature.
The retaining member may be manufactured from a sheet of material with the sheet or panel edge-engaging portions formed from portions of the sheet bent out of the plane of the sheet, e.g. substantially at right angles to ~the plane of the sheet. Preferably, the retaining member is manufactured from metal, e.g.
stainless steel.
The invention also provides a method of securing a glass sheet or a glazing panel in a frame, the frame having an abutment portion forming a rebate which prevents the sheet or panel from leaving the frame in a first direction, and an inwardly-facing groove capable of retaining glazing beading which prevents the sheet or panel from leaving the frame in a direction opposite to the first direction, the method comprising::
inserting the sheet or glazing panel into the frame so that it engages the abutment portion thereof;
mounting retaining members as defined in any of the last five preceding paragraphs in at least two diametrically-opposed corners of the frame so that the or each frame-engaging portion of the member is positioned against an inwardly-extending surface of a feature of a member of the frame, and the sheet or panel-engaging portion extends across a corner portion of the sheet or panel;
moving the sheet or panel into engagement with the retaining members so that corner portions of the sheet or panel engage the sheet or panel-engaging portions of the retaining members and sheet or panel edge-engaging portions of the retaining members engage edges of the sheet or panel adjacent the corners thereof;
mounting glazing beading in the groove; and
inserting spacing material between the abutment portion of the frame and the sheet or panel thereby preventing disengagement of the panel from the retaining members. Where the glazing beading is on the outside of the building, the retaining members can only be removed after removal of the spacing material which requires access to the interior of the building. Where the glazing beading is on the inside of the building, the spacing material can be removed but the retaining members cannot be removed without access to the interior of the building.
There now follows a detailed description, to be read with reference to the accompanying drawing, of a retaining member and of a method of securing a glazing panel which are illustrative of the invention.
In the drawings:
Figure 1 is a perspective view of a corner portion of a glazing panel and a frame showing the illustrative retaining member retaining the panel in the frame; and
Figure 2 is an elevational view of the illustrative retaining member showing the side thereof which engages the panel.
The drawing shows a corner of a frame 10 formed from four extruded frame members 12 joined at the corners of the frame 10 by mitred joints 14. The members 12 are formed from aluminium and each has an upstanding projection 16. The projections 16 provide an abutment portion forming a rebate of the frame 10. An insulation member 20 is mounted on a face of each portion 16 which faces into a building in which the frame 10 is mounted.
The member 20 defines a groove 18 facing outwardly of the building in which a gasket (not shown) is mounted.
A glazing panel 22 comprising two sheets of glass 24 separated by a spacer 26 is mounted in the frame 10 with the rebate formed by the abutment portions 16 preventing the panel 22 from leaving the frame in a first direction (inwardly of the building). The panel 22 is surrounded by central portions 28 of the frame members 12 from which the spacer 26 is separated by spacing material (not shown).
The frame 10 also comprises an inwardly-facing groove 30 capable of retaining glazing beading (not shown) which prevents the panel 22 from leaving the frame 10 in a direction opposite to the first direction (outwardly of the building). The glazing beading is of conventional construction and comprises a leg portion arranged to be jammed into the groove 30 and be retained therein by a projecting lip 32 at the entrance to the groove. The glazing beading supports a gasket (not shown) which engages an outer surface 34 of the panel 22.
In addition to the glazing beading, the panel 22 is retained in the frame by at least two retaining members 36 which are mounted in diametrically-opposed corners of the frame 10 (only one retaining member 36 is shown in the drawings). Preferably, members 36 are inserted in all four corners of the frame 10.
Each retaining member 36 is manufactured from a sheet of material, specifically stainless steel, and comprises a frame-engaging portion 38 which lies in the plane of the sheet of metal and is generally rectangular having a width equal to the depth of the groove 30. The portion 38 is arranged to be positioned in the groove 30 of a frame member 12 against an inwardly-extending surface provided by a side surface of the groove 30 on the outer side of the frame. The positioning of the frame-engaging portion 38 is to prevent the member 36 from moving out of the frame 10 in one direction (outwardly of the building).A further frame-engaging portion 40 of the member 36, similar to the portion 38, is arranged at right angles to the portion 38 so that it is arranged to be positioned against an inwardly-extending side surface of the groove 30 of a further member 12 of the frame 10 which meets the member 12 into which the portion 38 is inserted at the corner 14. In an alternative construction, the portions 38 and 40 may be positioned in an inwardly-extending feature of the frame 10 other than the groove 30, for example an additional groove or against one surface of a ridge.
Each retaining member 36 also comprises a sheet or panel-engaging portion 42 which is integral with the portions 38 and 40 and from which the portions 38 and 40 project. The portion 42 lies in the plane of the sheet of material and is arranged to engage a portion of the panel 22 to prevent it from moving out of the frame 10 in said direction (outwardly of the building) past the member 36. The portion 42 has substantially the shape of a square with a corner cut-off (the corner diametrically-opposed to the corner 14 of the frame 10).
The portion 42 extends parallel to the surface 34 of the panel 22.
Each retaining member 36 also comprises a first sheet or panel edge-engaging portion 44 arranged to engage a first edge of the panel 22 in the frame 10 to prevent the frame-engaging portion 38 from being withdrawn from the groove 30 i.e. preventing it from moving clear of the side surface of the groove 30 inwardly of the frame. The portion 44 is formed from a portion of the sheet bent at substantially right angles to the plane of the sheet. The portion 44 is integral with an extension of the portion 38 which extends beyond the portion 42. The portion 44 also serves to prevent movement of the member 36 in a direction which would slide the frame-engaging portion 40 parallel to the groove 30 in the member 12 in which it is inserted.
Each retaining member 36 also comprises a second sheet or panel edge-engaging portion 46, similar to the portion 44, but arranged to engage a second edge of the panel 22 which meets said first edge at a corner of the panel. The portion 46 is to prevent movement of the member 36 in a direction parallel to the groove 30 in which the portion 38 is inserted (sliding the portion 38 in the groove 30) and prevents withdrawal of the portion 40 from the groove 30.
Each retaining member 36 also comprises a projection 48 from each of the frame-engaging portions 38 and 40 thereof. The projections 48 are formed by rectangular extensions of the portions 38 and 40, at the opposite ends thereof from the portions 44 and 46, which are bent at substantially right angles to the plane of the sheet.
The projections 48 extend tranversely of the groove 30 and reduce the possibility of the member 36 tilting relative to the groove 30.
To secure the panel 22 in the frame 10, the panel is first inserted into the frame so that it engages the abutment portions 16. Next, retaining members 36 are mounted in at least two diametrically-opposed corners 14 of the frame 10 so that the frame-engaging portions 38 and 40 are inserted into the grooves 30 of the frame members 12 which meet at a corner and the sheet or panel-engaging portion 42 extends across a corner portion of the panel 22 parallel to the surface 34. Next, the panel 22 is moved into engagement with the retaining members 36 so that corner portions of the panel 22 engage the portions 42 and the sheet or panel edge-engaging portions 44 and 46 each engage an edge of the panel 22 adjacent the corners thereof. Next, glazing beading is mounted in the groove 30, being cut away around the portions 38 and 40. Finally, spacing material, i.e. the gasket retained by the groove 18, is inserted between the abutment portion 16 of the frame 10 and the panel 22 thereby preventing disengagement of the panel 22 from the members 36.
In the event of removal of the glazing beading by an unauthorised person, the glazing panel 22 cannot be removed because of the retaining members 36 which themselves cannot be removed as they are held in position by the panel 22. For authorised removal, however, in which access to the interior of the building is available, the spacing gasket can be prised out of the groove 18 allowing the panel 22 to move towards the rebate 16 so that the panel 22 disengages from the retaining members 36 which can then be removed.
Claims (8)
1. A retaining member for use in retaining a glass sheet or a glazing panel in a frame, the retaining member comprising
a frame-engaging portion arranged to be positioned against an inwardly-extending surface of a feature of a member of the frame to prevent the retaining member from moving out of the frame in one direction,
a sheet or panel-engaging portion arranged to engage a portion of a sheet or panel in the frame to prevent the sheet or panel from moving out of the frame in said direction past the retaining member,
a first sheet or panel edge-engaging portion arranged to engage a first edge of the sheet or panel in the frame to prevent the frame-engaging portion of the retaining member from being moved clear of the feature inwardly of the frame, and
a second sheet or panel edge-engaging portion arranged to engage a second edge of the sheet or panel which meets said first edge at a corner of the sheet or panel to prevent movement of the retaining member in a direction parallel to said feature.
2. A retaining member according to Claim 1, wherein the retaining member comprises a further frame-engaging portion arranged to be positioned against an inwardly-extending surface of a feature of a further member of the frame which meets said member of the frame at a corner of the frame.
3. A retaining member according to either one of Claims 1 and 2, wherein the retaining member comprises a projection from the or each of the frame-engaging portions thereof, the projection extending tranversely of the feature when the frame-engaging portion is positioned as aforesaid and thereby reducing the possibility of the retaining member tilting relative to the feature.
4. A retaining member according to any one of Claims 1 to 3, wherein the retaining member is manufactured from a sheet of material with the panel edge-engaging portions formed from portions of the sheet bent out of the plane of the sheet.
5. A retaining member according to any one of Claims 1 to 4, wherein the retaining member is manufactured from stainless steel.
6. A retaining member for use in retaining a glass sheet or a glazing panel in a frame substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
7. A method of securing a glass sheet or a glazing panel in a frame, the frame having an abutment portion forming a rebate which prevents the sheet or panel from leaving the frame in a first direction, and an inwardly-facing groove capable of retaining glazing beading which prevents the sheet or panel from leaving the frame in a direction opposite to the first direction, the method comprising::
inserting the sheet or panel into the frame so that it engages the abutment portion thereof;
mounting retaining members according to any one of
Claims 1 to 6 in at least two diametrically-opposed corners of the frame so that the or each frame-engaging portion of the member is inserted into the groove of a member of the frame or other inwardly-facing feature thereof, and the panel-engaging portion extends across a corner portion of the sheet or panel;
moving the sheet or panel into engagement with the retaining members so that corner portions of the sheet or panel engage the sheet or panel-engaging portions of the retaining members and sheet or panel edge-engaging portions of the retaining members engage edges of the sheet or panel adjacent the corners thereof;
mounting glazing beading in the groove; and
inserting spacing material between the abutment portion of the frame and the sheet or panel thereby preventing disengagement of the sheet or panel from the retaining members.
8. A method of securing a glass sheet or a glazing panel in a frame substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898925781A GB8925781D0 (en) | 1989-11-15 | 1989-11-15 | Glass retaining member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9024545D0 GB9024545D0 (en) | 1991-01-02 |
| GB2238071A true GB2238071A (en) | 1991-05-22 |
Family
ID=10666328
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB898925781A Pending GB8925781D0 (en) | 1989-11-15 | 1989-11-15 | Glass retaining member |
| GB9024545A Withdrawn GB2238071A (en) | 1989-11-15 | 1990-11-12 | Glass retaining member |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB898925781A Pending GB8925781D0 (en) | 1989-11-15 | 1989-11-15 | Glass retaining member |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8925781D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2292966A (en) * | 1994-09-10 | 1996-03-13 | Scholes Ernest M H | Glazing corner security clip |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2228964A (en) * | 1989-03-06 | 1990-09-12 | Downpark Limited | A clip arrangement for a panel assembly |
-
1989
- 1989-11-15 GB GB898925781A patent/GB8925781D0/en active Pending
-
1990
- 1990-11-12 GB GB9024545A patent/GB2238071A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2228964A (en) * | 1989-03-06 | 1990-09-12 | Downpark Limited | A clip arrangement for a panel assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2292966A (en) * | 1994-09-10 | 1996-03-13 | Scholes Ernest M H | Glazing corner security clip |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8925781D0 (en) | 1990-01-04 |
| GB9024545D0 (en) | 1991-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |