GB2280698A

GB2280698A - Lining profiles for door or window

Info

Publication number: GB2280698A
Application number: GB9415732A
Authority: GB
Inventors: Heinrich Saelzer
Original assignee: Saelzer Sicherheitstechnik GmbH
Current assignee: Saelzer Sicherheitstechnik GmbH
Priority date: 1993-08-03
Filing date: 1994-08-03
Publication date: 1995-02-08
Anticipated expiration: 2014-08-03
Also published as: DE4423944A1; DE9311567U1; GB2280698B; GB9415732D0; DE4423944C2

Abstract

In order to reduce any opportunities for allowing the fastening of strangulation means or similar to a door or window, the legs (6) of a frame (1) and legs (7) of a sash (2) are provided with lining profiles (4, 5) on the inside surface of a wall facing the room. The profiles (4, 5) directly abut against the inside of the legs (6, 7) of the frame (1) and the sash (2) and are connected thereto by means of fastening means such as screws (8, 9 or 17, 18). These are arranged so that their heads are covered when the sash (2) is closed so as to be inaccessible. <IMAGE>

Description

DOOR OR WINDOW The invention relates to a door or a window with at least one blind frame, which may be installed into a wall opening, and at least one sash, which may be mounted in the blind frame. At the outside, or external surface of the door/window, the blind frame overlaps the sash, whereas at the inside or internal surface, the blind frame and sash are covered by lining profiles.

Such a window construction is already known from DE 32 10 253 Al, in which on the inside the blind frame is provided with legs and facings are latched into a groove in a frame leg by a respective anchor leg. On their side facing the building interior, thermal insulating lining profiles of wood or plastic are secured to the facings.

The aim of the known window construction is, on the one hand, to improve thermal insulation and, on the other hand, to allow the window to match the internal decor or architectural style of the wall or room.

In addition to the thermal insulation and architectural/decorative requirements, a primary requirement for such constructions is security, if such doors or windows are to be installed in areas provided for secure accommodation for persons, who are at an increased risk of harming third parties and also themselves. Such areas include, in particular, cells in prison establishments. Particular difficulties arise if the inmates cannot be supervised constantly owing to staff shortages. The increase in suicides amongst such persons has resulted in cells being constructed in such a way that their internal wall surfaces do not have any protrusions or recesses. This is because protrusions are frequently suitable, for example, for attaching means for strangulation directly thereto. On the other hand recesses allow fastening means to be inserted so that means for strangulation may be directly fastened thereto.

Experience has shown that conventionally designed door and window constructions in these areas are preferred locations for assisting an inmate in committing suicide. Thus, there is now a general requirement to design these constructions and integrate them into the remaining confines of a room so that no means for strangulation whatsoever can be secured to the doors and windows of prison cells.

The present invention seeks to alleviate at least some of the aforementioned problems by providing a door or a window which in addition to the usual security factors, (for example, to prevent escape or break-in) does not provide any opportunity to assist a suicide on the basis of its structure or installation.

Accordingly, with this object in mind, the present invention provides a door or window having at least one blind frame which may be installed into a wall opening and at least one sash which may be mounted therein and on the inside of the window the legs of the blind frame and sash are covered by lining profiles, characterised in that the lining profiles each abut directly against the inside of the legs of the blind frame and the sash and are connected to these legs by fastening means such as screws arranged to be covered when the sash is closed so as to be inaccessible.

The direct abutment of the lining profiles against the inside of the frame leg according to the invention simplifies installation of the frame flush with the adjacent confines of the room, especially since the thickness of the frame is merely increased by the thickness of the lining profiles. According to embodiments of the invention, a covered bolted joint of the lining profiles to the legs of the frame not only provides a stable connection between the frame legs and the lining profiles, but also provides optimum security against wilful dismantling of the lining profiles from the frame legs when the door or window is open. In the case of standard windows designed to protect against forced entry, the stop of the sash is reinforced in the direction of the blind frame by the respective lining profile so that its protective characteristics, in particular against the stop being bent open, are considerably improved.

To ensure that opening of the sash is not hindered by the lining profiles attached to the inside of its legs when adjacent edges of the sash and blind frames lining profiles define only a narrow gap, one embodiment of the invention provides that at least on the contact or strip side, the lining profiles of the blind frame have a longitudinal bowl on their side facing the lining profiles of the sash, and the lining profiles of the sash have a longitudinal recess on their facing side. Whilst the longitudinal bowl may be preferably defined by a concave arc, a preferred embodiment of the longitudinal recess is defined by two convex arcs. The gap on the strip side between adjacent lining profiles of the blind frame and sash may also be kept very narrow by the longitudinal bowl and the longitudinal recess, and therefore does not adversely affect security of the door or window.

According to a further embodiment of the invention, when the sash is closed, longitudinal strips of the lining profiles provided on the blind frame are arranged so as to be flush with longitudinal edge strips of the lining profiles provided on the sash and which are arranged at a distance opposite these. The arrangement and dimensions of the longitudinal bowl and the longitudinal recess are such that, when the sash is open, a longitudinal edge strip of the lining profile provided on the leg of the blind frame may be positioned in the longitudinal recess of the lining profile provided on the sash by longitudinal edge strips facing one another on the strip side of adjacent lining profiles, whereas one longitudinal edge strip of the lining profile provided on the sash may be positioned in the longitudinal bowl of the lining profile provided on the leg of the blind frame.

Thus, according to such embodiments, adjacent lining profiles on the strip side do not hinder one another when a sash is swung open or shut, without it being necessary to provide a relatively wide gap between the adjacent lining profiles.

In order to also eliminate the narrow dimensioned gap between adjacent lining profiles, which may present a source of risk, a further embodiment of the invention provides that the lining profiles of the blind frame have a groove on their side facing the lining profiles of the sash, and into said groove a rigid or elastically deformable bridging strip may be inserted. Thus, a gap remaining as a result of the space between the longitudinal edge strips of adjacent lining profiles may be blocked.

It will be appreciated that, for unhindered swinging motion of the door or window frame, the bridging strip arranged on the strip side in each case is the one which should be elastic. Such an elastic bridging strip may, for example, be formed from a brush strip or an elastomer strip or flexible tube, which may be elastically displaced around the bulk of the gap intermittently impinged by the respective longitudinal edge strip of the lining profile.

According to a further advantageous embodiment of the invention, the lining profiles of the sash each form a glass retaining strip with an edge strip averted from the lining profiles of the blind frame so that no special profile part and fastening is required for this purpose.

In this case, with an edge strip angled off to the glass pane, the lining profile may overlap an elastic profile just like a conventional glass retaining strip, so that this profile is securely protected from wilful damage.

The lining profile may, however, also overlap a conventional glass retaining strip, by means of which an elastic sealing profile is pressed against the glass pane in the usual manner. Also in this case, the overlap may extend so far that the possibility of wilful damage to the elastic sealing profile is eliminated. The retention of the conventional glass retaining strip may be particularly recommended if doors or windows are to be fitted with the lining profiles after installation.

According to a further embodiment of the invention, compartments and/or undercut grooves may be provided in the lining profiles to receive corner angle pieces, locks and other fittings and connections.

Lining profiles connected directly to one another by means of corner angle pieces form a relatively stable frame which forms a highly resistant structural unit after connection to the blind frame or sash. The provision of locks and other fittings and connections in compartments and/or undercut grooves in the lining profiles increases the amount of space available in the legs of the blind frame and sash for other fittings or allows the dimensions of the leg cross-sections to be correspondingly reduced.

In order to operate a gear arrangement integrated into the blind frame or sash, in particular for a turn and/or tilt fitting - with the exception of expensive electrically operated drive mechanisms to be additionally installed, which merely require an inaccessible power supply line to be laid - it is generally essential that an installation opening is provided in at least one lining profile so that the manual operating means may be attached on occasion. To ensure that the installation opening for such a operating member does not pose any risk once the operating member has been removed, according to an embodiment of the invention the installation opening may be selectively blocked and released by a plate mounted to slide inside the lining profile.

In order to slide the plate in and out of the position to block or open the opening, the plate is preferably coupled with a gear integrated into the blind frame or sash, which is fitted with a pinion of a cylinder lock for actuation and said cylinder lock may be operated by inserting a security key into a slot in the lining profile.

Since the force needed to slide the plate back and forth may be relatively low, a relatively small structural unit is sufficient as a gear, which may be simply integrated into the blind frame or sash and operated by means of a security key, insertable preferably via an extremely small opening in the lining profile.

Embodiments of the present invention will now be described further, by way of example, with reference to the accompany drawings which show an example prison cell window.

Figure 1 shows a view onto the inside of the window; Figure 2 shows a section along line 11-11 in Figure 1; Figure 3 shows a section along line III-III in Figure 1; Figure 4 shows a section along line IV-IV in Figure 1; Figure 5 shows a section along line V-V in Figure 1; Figure 6 shows a section along line VI-VI in Figure 1; Figure 7 shows a section according to Figure 6, in which the window sash is shown in open position.

Whereas the window in Figure 1 is shown on a smaller scale, Figures 2 to 7 show the window parts in what may be a standard size.

The window essentially comprises a blind frame 1, which may be installed in a window opening (not shown), a sash 2 mounted in the blind frame and a pane of glass 3 fitted into the sash. Neither the blind frame 1 nor the sash 2 are visible in Figure 1, being completely covered on the inside of the window by lining profiles 4 and 5, only the pane 3 of glass and the lining profiles 4 and 5 are directly visible.

The other figures show a leg 6 of the blind frame 1 covered on the inside facing the room by a lining profile 4 and a leg 7 of the sash 2 covered by lining profile 5.

With its angular rear side, the lining profile 4 abuts against the corner region of leg 6 and is firmly connected thereto by means of screws 8 and 9. A clamp 11, by means of which a wall connection profile 12 is tightly connected to the lining profile 4, sits in a laterally open undercut groove 10 of the lining profile 4.

With its longitudinal side facing the lining profile 5, the lining profile 4 forms a concave longitudinal bowl 13. A bridging strip 15, which blocks a gap 16 between lining profiles 4 and 5, sits in a groove 14 provided for it. With its similarly angular rear side, the lining profile 5 abuts against the leg 7, protruding beyond it on both sides, and is secured to leg 7 by means of screws 17 and 18 screwed in from its rear side, screw 17 penetrating to the complete depth of leg 7. With its angled edge strip 19, the lining profile 5 engages above an elastic sealing profile 20, which is pressed against the pane of glass 3 by a glass retaining strip 21 of conventional construction. The glass retaining strip 21 is inserted into a laterally open undercut groove 22 of the leg 7.

With its longitudinal side facing the lining profile 4, the lining profile 5 forms a longitudinal edge strip 23 with an arc-shaped cross-section, which, as shown in particular in Figure 7, allows the sash to swing unhindered into its open position with the elastic construction of the bridging strip 15' by the longitudinal edge strip 23 dropping into the longitudinal bowl 13 formed by the lining profile 4. A longitudinal edge strip 24 of the lining profile 4 thereby passes into a longitudinal recess 25 provided on the side of the lining profile 5 facing the interior of the room.

Undercut grooves 26, 27 and a compartment 28 in the lining profile 5 provide space to house fittings such as corner angles and similar, which are not shown.

As shown in Figure 1, a circular installation opening 29 is provided in a vertical lining profile 5 which may be blocked or opened by means of a plate 30 which has a corresponding perforation 31, depending on the position of the plate. The installation opening 29 and the perforation 31, which is flush with it, depending on the position of the plate 30, allow operation of conventional window locking elements, for example, possibly in conjunction with a turn and tilt fitting, by means of a gear handle (not shown).

Figures 3 to 5 show the sliding movement of the plate 30, which is normally in a position blocking the installation opening 29 and in addition to its blocking function provides protection against interference by drilling.

These figures show that the plate 30, which may be moved back and forth in an undercut groove 32 in the lining profile 5, is provided on its rear side with a bolt 33 protruding vertically from the plate plane. This bolt interacts with a toothed rack, which may be drawn up and down by means of a pinion 37, the teeth of which mesh with the teeth of the toothed rack.

With a slide rod 35 guided in an undercut groove 36 of the leg 7, the sash 2 may be moved into a turning, tilting or pivoting position. However, for this purpose the plate 30 must be moved into a position to open the opening 29 by operating the pinion 37, so that the gear handle may be then be installed to operate the slide rod 35.

The pinion 35 is a component of a lock 38, which may be operated by a security key. An insignificant small opening 39 is all that is required in the lining profile 5 for insertion of the security key into the lock 38. A rectangular notch 40 in the vicinity of the lower end of the plate 30 ensures that the opening 39 is not blocked by the plate 30 when this is in its lowest position blocking the installation opening 29.

It will be appreciated that various modifications may be made to the illustrated embodiments.

Claims

1. A door or window having a blind frame for installation into a wall opening and a sash mountable in said blind frame, the blind frame and sash being provided with legs arranged so that at the external surface of the opening legs of the blind frame overlap legs of the sash and on the internal surface the legs of the blind frame and the sash are covered by lining profiles, wherein the lining profiles abut directly against the inside of the legs of the blind frame and the sash and are connected thereto by fastening means arranged so as to be inaccessable when the sash is closed.

2. A door or window according to Claim 1 wherein the fastening means include screws arranged so that their heads are covered when the sash is closed.

3. A door or window according to Claim 1 or 2, wherein, at least on one side, the lining profiles for the blind frame have a longitudinal bowl on their side facing the lining profiles for the sash, and the lining profiles for the sash have a longitudinal recess on their facing side.

4. A door or window according to any preceding claim wherein, the lining profiles on the blind frame have longitudinal strips and the lining profiles of the sash have longitudinal edge strips and the respective longitudinal strips are arranged to be spaced apart and flush when the sash is closed.

5. A door or window according to Claim 3 or 4 wherein, when the sash is open, a longitudinal edge strip of a lining profile for the blind frame is locatable in the longitudinal recess in the lining profile for the sash and a longitudinal edge strip of the lining profile for the sash is locatable in the longitudinal bowl of the lining profile for the blind frame.

6. A door or window according to one of Claims 4 or 5 wherein the lining profiles of the blind frame have a groove on their side facing the lining profiles of the sash and a rigid or elastically deformable bridging strip is insertable into the groove to close a gap defined between the longitudinal edge strips of adjacent lining profiles.

7. A door or window according to any preceding claim wherein an edge strip of a lining profile for the blind frame is deflected and which, with the lining profile for the sash, forms a glass retaining strip or retains a glass retaining strip and an elastic sealing profile.

8. A door or window according to any preceding claim wherein clamps and/or undercut grooves are provided in the lining profiles to house corner angle pieces, locks and other fittings and connections.

9. A door or window according to any preceding claim, wherein in at least one of the lining profiles, an installation opening is provided for an operating member of a gear arrangement integrated into the blind frame or sash for a turn and/or tilt fitting, and the installation opening may be selectively blocked and opened by means of a plate mounted to slide inside the lining profile.

10. A door or window according to Claim 9, wherein the plate is coupled with a gear integrated into the blind frame or sash, which is fitted for actuation with a pinion of a lock, operable by means of a security key insertable into an opening in the lining profile.

11. A door or window substantially as hereinbefore described with reference to, and as illustrated in, any one of the accompanying drawings.