GB2352469A

GB2352469A - Glazed structure with press-fit beading

Info

Publication number: GB2352469A
Application number: GB9917747A
Authority: GB
Inventors: John Derek Mumford
Original assignee: Mumford & Wood Ltd
Current assignee: Mumford & Wood Ltd
Priority date: 1999-07-28
Filing date: 1999-07-28
Publication date: 2001-01-31
Anticipated expiration: 2019-07-28
Also published as: GB9917747D0; GB2352469B

Abstract

A glazing panel 5 is held in a window frame by press-fitted beads 9 (and 6-8, figure 1). The beads are pressed into position by movement perpendicular to the plane of the glazing panel. Preferably, the beads have a tongue which is received in a channel on the frame. The beads may be in the form of an inverted G such that the top of the G forms a tongue 9a which is received in channel 13, which may be formed between a member 12, screwed to the frame, and the wooden frame 14. The re-entrant part of the G may bear against a small step surface, which faces the glazing panel 5, to hold the bead in place. An additional member may also be provided (9f, figure 4) which bears against the step. The bead may be an aluminium extrusion with mitred ends.

Description

2352469 Glazed Structure with Press-Fit Beading

Description

The present invention relates to a window having press-fit beading and a method of glazing such a window.

Wooden framed windows, such as traditional sash windows, usually employ wooden beads to hold their glazing panels in place. These wooden beads are typically held in place by nails. The presence of these nails detracts from the appearance of the io window. Furthermore, the wood of the beads rots over time and must be replaced.

There is also no guarantee that there will be a tight fit between the bead and the glass as this depends on the workman pushing the bead against the glass while nailing it in position.

The use of a press-fitted bead has been proposed to overcome the problem of unsightly nail heads. However, such beads are pushed into place in a direction parallel to the plane of the glazing panel. Consequently, the traditional mi'tre at each corner of the glazing panel cannot be achieved and such beads have only been used at the bottom of windows. To overcome the problem of the beads rotting, the press-fitted beads have been made from aluminium.

According to the present invention, there is provided glazed structure, e. g. a wing, a sash or a door, comprising frame means having an aperture for receiving a glazing panel and a glazing panel held in the aperture by beading means, the beading means being releasably press-fitted to said frame means for holding the glazing panel in said frame means, wherein the beading means and/or said frame means are configured such that the press-fitting of the beading means to said frame means is achieved by moving the beading means, relative to said frame means, perpendicular to the plane of the glazing panel. Consequently, in the case of a rectangular glazed structure, mitres can be used at the end of the beading means along each side of the structure. Additionally, windows or other structures according to the present invention can be manufactured in many shapes, e.g. circular, keyhole, because the beading means is brought into its operative position in a direction perpendicular to the plane of the glazing panel.

Conveniently, the beading means includes a tongue and said frame means includes a channel, opening in a direction perpendicular to the plane of the glazing panel, in which said tongue is received. The tongue could have a bulge to be received in complementary groove in a side wall of the channel for holding the beading means in place. Preferably however, said structure includes a surface directed substantially towards the glazing panel and the beading means includes an element bearing io against said surface and is sufficiently resilient to be deformed for bringing said element into contact with said surface, for holding the glazing panel in said sash or wing, and removing it therefrom without damaging the beading means.

In an embodiment, the beading means comprises a frame-engaging portion of its cross-section, said portion being generally in the form of an inverted G, the top of the G forming a tongue received in a channel in said frame means and the re-entrant part being said element.

In another embodiment, the beading means has a cross-section comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a leg portion projecting from the major portion and having a foot whose heel is received in a groove for retaining the beading means in position, and a further foot, depending from the major portion near the glazing panel, which is received in a slot on the sash or wing, opening away from the glazing panel.

In a further embodiment, the beading means has a cross-section comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a leg portion projecting from the major portion and having a foot whose heel is received in a groove for.retaining the beading means in position, and a further foot, depending from the major portion near the glazing panel, which is received in a slot on the frame means, opening away from the glazing paneL In a still further embodiment, the beading means has a cross-section comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a foot portion projecting from the major portion and having a foot whose heel is received in a groove for retaining the beading means in position whose toe is received in a slot on the frame means, opening away from the glazing panel.

io The beading means preferably comprises an aluminium. extrusion. However, a plastics resin material extrusion or moulding could be used.

Preferably, said structure includes a wooden frame surrounding a glazing panel receiving hole and an elongate element fastened along a side of the hole, the elongate element being spaced from said frame in part so as to form said channel. The frame may have a rib along the side of the hole and the elongate element has a channel conforming to said rib and into which the rib is received. The elongate member may be screwed, nailed or glued to the frame. Alternatively, the elongate member could be configured so as to clip onto the rib, if one is present.

Protection is sought for a bead configured to serve as the beading means in a structure according to the present invention.

According to the present invention, there is also provided a method of glazing a structure according to the present invention, the method comprising inserting a glazing panel into a frame means and press-fitting a beading element to the frame means by moving the beading towards the glazing panel for retaining the glazing panel in the frame means.

Embodiments of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a front view of a sash of a sash window according to the present invention; Figure 2 is a sectional view of the bottom part of the sash of Figure 1; Figure 3 is a sectional view of the bottom part of a sash of a second window according to the present invention; Figure 4 is a sectional view of the bottom part of a sash of a third window according to the present invention; and Figure 5 is a sectional view of the bottom part of a sash of a fourth window according to the present invention.

Referring to Figure 1, the sash of a sash window comprises first and second side io members 1, 2, a top member 3 between the tops of the side members 1, 2 and a bottom member 4 between the bottoms of a side members 1, 2. A rectangular hole is defined by the side, top and bottom members 1, 2, 3, 4 and a glazing panel 5 is received in the hole. The glazing panel 5 is a double-glazing panel and comprises two parallel panes of glass with separators between their peripheries. The glazing panel 5 is held in position by first, second, third and fourth beads 6, 7, 8, 9, press fitted respectively to the first and second side members 1, 2, the top member 3 and the bottom member 4. Where the beads 6, 7, 8, 9 meet each other, they are mitred.

Referring to Figure 2, the bottom member 4, which is representative of all of the members 1, 2, 3, 4 of the sash, has a raised portion 4a along its rear edge. The raised portion 4a has a vertical face against which the glazing panel 5 is pressed by the fourth bead 9, which is representative of all of the beads 6, 7, 8, 9.

A channel 10 extends along the bottom member 4. A rib 4b defines the front of the channel 10 and a step 4c at the foot of the vertical wall of the raised portion 4a defines the back of the channel 10. The rib 4b is slightly lower than the step 4c.

An aluminium extrusion 12 has a rear portion that conforms to and encompasses the rib 4b. A nose portion 12a projects forward from the rear portion of the aluminium, extrusion 12. The nose portion 12a is raised slightly above the substance of the bottom member 4 to define a channel 13 that runs along the length of the bottom member 4. The top of the nose portion 12a is slightly higher than the rear portion of the aluminium extrusion 12 so that a small step is formed at the back of the nose portion 12a. The aluminium extrusion 12 is fastened to the bottom member 4 by screws 14 (one shown) that pass through the aluminium extrusion 12 vertically into the rib 4b at spaced positions.

The bottom bead 9 comprises an alurniniurn extrusion. As viewed in Figure 2, the cross-section of the bottom bead 9 comprises a tongue portion 9a which is received in the channel 13, a front vertical portion 9b extending upwards from the front of the tongue portion 9a immediately past the end of the nose portion 12a, an inclined portion 9c sloping upwards and backwards from the top of the front vertical lo portion 9b, and a rear vertical portion 9d depending from the top of the inclined portion 9c. The upper part of the rear vertical portion 9d is C-shaped and holds an elongate elastomeric sealing member 15 which presses against the glazing panel 5. The lower part of the rear vertical portion 9d comprises a crooked finger, the end of which abuts the step at the back of the nose portion 12a of the aluminium extrusion 12. The bottom bead 9 is sufficiently resilient for it to be repeatedly press-fitted to the bottom member 4/aluminium extrusion 12 combination and removed therefrom.

The process of glazing the sash of Figure 1 will now be described.

Initially, the glazing panel 5 is placed in the hole defined by the side, top and bottom members 1, 2, 3, 4 and manually held against the raised portions 4a of these members 1, 2, 3, 4. One of the beads 6, 7, 8, 9 is then positioned along an edge of one of the members 1, 2, 3, 4 and pushed towards to glazing panel 5 (arrow A) so 25 that its tongue portion 9a enters the channel 13 formed by the member 1, 2, 3, 4 and its associated alumini'um. extrusion 12. As the bead 9 moves towards the glazing panel 5, its crooked finger portion rides over the top of the nose portion 12a of the aluminium extrusion 12 until it drops behind the step at the back of the nose portion 12a of the aluminium. extrusion 12. The bead 9 is now in position with the 30 sealing member 15 pressing the glazing panel 5 against the raised portion 4a at the back of the member. The remaining beads are then fitted in sequence in the same manner.

Referring to Figure 3, an alternative bead 9' is used for holding a thinner glazing panel 5' in place. The bead 9' differs from that shown in Figure 2 in that the rear vertical portion 9'd comprises just the crooked finger and the sealing member 15 is carried by a hanging portion 9'e that depends from a rearward extension of the inclined portion 9'c.

The aluminium extrusion 12 is glued to the rib 4b in this embodiment. However, screwing would be a suitable alternative fixing technique for the aluminium extrusion 12.

Referring to Figure 4, an further alternative bead 9" and an alternative aluminium extrusion 12' are used for holding a glazing panel 5", which is thinner relative to the sash's depth, in place.

The aluminium extrusion 12' has a rear portion that conforms to and encompasses the rib 4b. A substantially L-shaped projection projects upwards from the back of the rear portion 12'c: to form a slot 12'd opening to the front.

A nose portion 12'a projects forward from the rear portion of the aluminiurn extrusion 12'. The nose portion 12'a is raised slightly above the substance of the bottom member 4 to define a channel 13 that runs along the length of the bottom member 4. A groove 16, having a substantially vertical front face, extends along the top of the nose portion. The aluminium extrusion 12 is fastened to the bottom member 4 by ribs 12'b which project from the inner vertical walls of the rear portion of the aluminium extrusion 12' and optionally screws (not shown) arranged as shown in Figure 2. The ribs 12'b of the aluminium extrusion bite into the wood of the rib 4b of the bottom member 4.

The bead 9" comprises an alurruinium. extrusion. As viewed in Figure 4, the cross- section of the bead 9" comprises a tongue portion 9"a which is received in the channel 13, a front vertical portion 9"b extending upwards from the front of the tongue portion 9 "a immediately past the end of the nose portion 12'a, an inclined portion 9"c sloping upwards and backwards from the top of the front vertical portion 9"b, and a rear vertical portion 9"d depending from the top of the inclined portion 9"c. The upper part of the rear vertical portion 9d is C-shaped and holds an elongate elastomeric sealing member 15 which presses against the glazing panel 5". The lower part of the rear vertical portion 9d comprises a foot that is received in the slot 12'd.

An leg 9"f slopes backwards and downwards from the inclined portion 9"c near its lower end. A foot at the end of the leg 9"f has a heel portion that is received in the groove 16 and abuts the front face of the groove.

When the bead 9" is being installed, it is moved towards the glazing panel 5" so that the tongue portion 9"a enters the channel 13. As the bead 9" is moved further towards the glazing panel 5", the leg 9"f rides over the nose portion 12'a until the heel portion enters the groove 16. At the same time, the foot on the rear portion 9"d of the bead 9" enters the slot 12'd.

Referring to Figure 5, the aluminium extrusion 12" is the same as that shown in Figure 4 save for the absence of the ribs 12'b and is screwed to the rib 4b in the manner shown in Figure 2. The step 4c is lower than the steps shown in Figures 3 to 4 and is the same height as the rib 4b. An elastometic strip 20 is located between the glazing panel 5"' and the raised portion 4a.

The bead 9... comprises an aluminium. extrusion. As viewed in Figure 5, the crosssection of the bead 9"' comprises a tongue portion 9... a which is received in the channel 13, a vertical portion 9... b extending upwards from the front of the tongue portion 9"a immediately past the end of the nose portion 12"a, a triangular Csection upper portion 9... g and a long foot 9... h projecting backwards from below the upper portion 9... g. A seal 21 has a barbed rib which is received in the upper portion 9... g of the bead 9... and three upwardly angled ribs, one above another, whose free ends press against the glazing panel 5"'. The free end of the foot 9... h is received in the slot 12"d formed by the aluminium extrusion 12" and the heal of the foot is received in the groove 16 in the aluminium extrusion.

It will be appreciated that many modifications may be made to the exemplary embodiments described above. For instance, the glazing panel could be being mounted in a door or a wing rather than a sash or the glazing panel could be of a non-rectangular form. The form of the bead can also be varied, for instance replacing the angular profile with a curving one, as long as the necessary resilience is retained.

Claims

1. A glazed structure comprising frame means having an aperture for receiving a glazing panel and a glazing panel held in the aperture by beading means, the beading means being releasably press-fitted to said frame means for holding the glazing panel in said frame means, wherein the beading means and/or said frame means are configured such that the press-fitting of the beading means to said frame means is achieved by moving the beading means, relative to said frame means, perpendicular to the plane of the glazing panel.

2. A glazed structure according to claim 1, wherein the beading means includes a tongue and said frame means includes a channel, opening In a direction perpendicular to the plane of the glazing panel, in which said tongue is received.

3. A glazed structure according to claim 1 or 2, wherein said frame means includes a surface directed substantially towards the glazing panel and the beading means includes an element bearing against said surface and is sufficiently resilient to be deformed for bringing said element into contact with said surface, for holding the glazing panel in said aperture, and removing it therefrom without damaging the beading means.

4. A glazed structure according to claim 3, wherein the beading means comprises a frame-engaging portion of its cross-section, said portion being generally in the form of an inverted G, the top of the G forming a tongue received in a channel in said frame means and the re-entrant part being said element.

5. A glazed structure according to claim 3, wherein the beading means has a cross-section comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a leg portion projecting from the major portion and having a foot whose heel is received in a groove for retaining the beading means in position, and a further foot, depending from the major portion near the glazing panel, which is received in a slot on the sash or wing, opening away from the glazing panel.

6. A glazed structure according to claim 3, the beading means has a crosssection comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a foot portion projecting from the major portion and having a foot whose heel is received in.-a groove for retaining the beading means in position whose toe is received in a slot on the frame means, opening away io from the glazing panel.

7. A glazed structure according to any preceding claim, wherein the beading means comprises an alumi'mium. extrusion.

A glazed structure according to claim 2, wherein said frame means includes a wooden frame surrounding a glazing panel receiving hole and an elongate element fastened along a side of the hole, the elongate element being spaced from said frame in part so as to form said channel.

9. A glazed structure according to claim 8, wherein the frame has a rib along the side of the hole and the elongate element has a channel conforming to said rib and into which the rib is received.

10. A glazed structure according to claim 8 or 9, wherein the elongate member is screwed to the frame.

11. A -window substantially as hereinbefore described with reference to Figure 1 and Figure 2, 3, 4 or 5.

14-

12. A bead for a glazed structure according to the present invention, the bead having a cross-section substantially as shown in Figure 2, 3, 4 or 5.

O'D.' a 9 1 a -.1 0 a., 0 Q.1 a

11. A glazed structure according to any preceding claim, wherein the beading means is elongate and mitred at either end.

12. A bead configured to serve as the beading means in a glazed structure according to any preceding claim.

13. A method of glazing a glazed structure according to any one of claims 1 to 11, the method comprising inserting a glazing panel into an aperture in frame means and press-fitting a beading element to the frame means by moving the beading towards the glazing panel for retaining the glazing panel in the sash or wing.

14. A window substantially as hereinbefore described with reference to Figure 1 and Figure 2, 3, 4 or 5.

15. A bead for a glazed structure according to the present invention, the bead lo having a cross-section substantially as shown in Figure 2, 3, 4 or 5.

Amendments to the claims have been filed as follows Claims A glazed structure comprising: - a frame means having an aperture for receiving a glazing panel; a glazing panel held in the aperture; a channel formed by a projection on the frame, the channel opening in a direction perpendicular to the plane of the glazing panel and the pro, ection having a surface directed substantially towards the glazing panel; and a press-fitted extruded aluminium beading means, comprising a tongue lo, received in the channel and a limb bearing against said surface such that the projection is gripped between the limb and the tongue, holding the glazing panel in the aperture, wherein the press-fitting of the beading means to said frame means is achieved by moving the beading means, relative to said frame means, perpendicular to the plane of the glazing panel and the beading means is sufficiently resilient to be deformed for bninging said limb into contact with said surface for holding the glazing panel in said aperture and removal of the beading means without damage thereto.

2. A glazed structure according to claim 1, wherein the beading means n -engaging portion of -section, said portion being generally comp ses a frame its cross in the form of an inverted G, the top of the G forming said tongue and the re entrant part being said element.

3. A glazed structure according to claim 1, wherein the beading, means has a cross-section comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a leg portion projecting from the major portion and having a foot whose heel is received in a groove for retaining the beading means in position, and a further foot, depending from the major portion near the glazing panel, which is received in a slot on the sash or wing, opening away from the glazing panel.

1 4. A glazed structure according to claim 1, the beading means has a crosssection comprising a tongue portion received in a channel on the frame means that opens away from the glazing panel, a major portion extending from the tongue to a position near the glazing panel, a foot portion projecting from the major portion and having a foot whose heel is received in a groove for retaining the beading means in position whose toe is received in a slot on the frame means, opening away from the glazing panel.

5. A glazed structure according to any one of claims 1 to 4, wherein said frame io, means includes a wooden frame surrounding a glazing panel receiving hole and an elongate element fastened along a side of the hole to form said projection.

6. A glazed structure according to claim 5, wherein the frame has a rib along a side of the aperture and the elongate element has a channel conforming to said rib and into which the rib is received.

7. A glazed structure according to claim 5 or 6, wherein the elongate member is screwed to the frame.

8. A glazed structure according to any preceding claim, wherein the beading means is elongate and mitred at either end.

9. A bead configured to serve as the beading means in a glazed structure according to any preceding claim.

10. A method of glazing a glazed structure according to any one of claims 1 to 8, the method comprising inserting the glazing panel into the aperture in the frame means and press-fitting the beading element to the frame means by moving the beading towards the glazing panel for retaining the glazing panel in the glazed structure.