DE9000564U1 - Strip material for use in the assembly of window and door frames in buildings - Google Patents

Description

Profile for use in the assembly of window and door frames in buildings

Description:

The invention relates to a profile for use in the assembly of window and door frames in - ¹ I--buildings»

Particularly in the construction of houses with wooden windows and doors, the frames are used as the walls of the shore while the walls stand. The window and turret frames themselves act as templates around which the brickwork is built to define the openings occupied by the windows and doors respectively. The windows thus installed are subsequently glazed and painted. One problem with this process, at least as far as the windows are concerned, is that the customer does not see the windows in their finished state until they are glazed and painted, so that the customer's expectations may not be met. Subsequent replacement of these windows with windows of a different design and material is time consuming and expensive.

There is a need on the part of home builders and other interested parties for pre-glazed and finished windows that can be installed using conventional construction methods and that have as little disruption to current building practices as possible. Pre-glazed and pre-fabricated windows from the manufacturer can reduce the cost of the final product and would also significantly reduce the amount of work on site. However, the installation of pre-glazed and finished windows

Windows in walls" using conventional installation methods can lead to damage to the windows and require cleaning and other treatment after the building is completed. In view of these uncertainties and special precautions and in view of possible additional costs, countermeasures are hardly practicable.

To define window openings, it is known to use intermediate profiles, usually made of raw wood. These intermediate profiles are positioned in the building walls while the walls are being built and are then removed so that windows can be inserted into the openings thus defined. The building owner in particular has had a fundamental aversion to such a procedure in connection with the installation of prefabricated windows, due to the possible construction delay and the additional costs.

The present invention aims to simplify the installation of windows and doors in buildings.

To this end, the invention provides, according to a first aspect, a profile with the features of claim 1.

Define the profile^

not only the opening, but remains in the masonry and provides a positioning device for the window or door frame inserted into the opening. The window or door frame can be attached to the profile after the plastering of the masonry has been completed. This allows the frame to be prefabricated before insertion < If a window is inserted, the entire window can be glazed and prefabricated,

!'-,&khgr;: ':"; in &Igr;-·. ; profile &ogr;i;: ^r i°p;!l:>^; : vird. &Ggr;&pgr;&aacgr;&pgr;&mgr;&Igr; i ' ■ Yi ·- · &tgr; * V* <"; i can < ^: v-; r". &igr; cn p<>&igr; one Tm r nm ''in f ⁿ i ' i '] &ngr; u: frib ■'i/. &igr;'■>"> Te ^: ' h-irKi-3 J P. ■

The profile is suitable for defining an opening for a window or door frame in a solid masonry; on the other hand, a profile can also be made for a replacement window or door frame in the opening of an existing masonry. If an existing building is to be renovated, for example, existing windows and doors in solid walls are to be replaced, profiles can be created for insertion into the existing openings, and the profiles can also be inserted into any new window or door frame openings.

According to a further aspect of the invention, a strip material with the features of claim 2 is provided.

The profile is preferably made of a suitable plastic, but it can also be made of any other material that forms an adequate vapor barrier.

If desired, the locking part and the front part can be manufactured separately and connected to one another in the profile. For example, you can form molded parts that engage with one another, or you can use adhesive or screws or other fastening means.

The position of the flange defining the shoulder on the face part can vary to accommodate different window or door frames to be inserted into the profile, as well as the position within the

of f Tinny in which the profile is to be positioned. Preferably the internal projection of the flange extending from the face plate corresponds approximately to the depth of the plaster applied to the masonry around the opening defined by the profile, or the flange can be adjusted for this plastering depth. The flange also provides a guide for the plasterer so that he knows to what height the plaster is to be applied . The internal projection can also correspond in thickness to a window sill.

The thickness of the plaster required may vary. To this end, the flange defining the shoulder may protrude from the face portion by a distance which substantially corresponds to a first depth for plastering the masonry around the opening, and the flange may have a line of weakness spaced from and extending parallel to the face portion in an intermediate region, whereby an outer portion of the flange can be detached to reduce the distance by which the flange protrudes from the face portion. This distance may then correspond to approximately half the plaster depth of the masonry. The line of weakness may be defined by thinning the material of the flange, for example by forming one or more grooves in the flange. Slots or perforations may also be provided. Preferably, the material of the flange and the shape of the line of weakness are selected so that the outer portion of the flange can be detached by breaking it off from the rest of the flange by hand. Two or more weakening lines can be provided for different distances from the front part.

If present, the closure member may be square, rectangular, part-circular or otherwise shaped, its shape being taken up in the cavity of the masonry and extending across the width of the cavity to close it. The closure member may be solid, but is preferably hollow to save material and weight, and the cavity may be filled with a lighter material, for example polyurethane foam.

In its hollow section form, the closure member may have a closed tubular cross-section, for example a square cross-section, or it may have an open cross-section, for example it may be U-shaped, in which two opposing walls extend approximately at right angles from a first side of the end member and are spaced apart from each other such that the U-profile extends into the cavity of the cavity masonry between opposite sides of the cavity. The opposing walls may extend the same or different distances from the face of the end member. They may have uniform thicknesses, giving them considerable rigidity, they may increase in thickness gradually or gradually towards the end member, or they may be provided with struts at spaced intervals along the strip, providing strength and rigidity. Reinforcement may be provided at the base of the U-shaped cross-section. For example, a reinforcing metal plate or a reinforcing metal strip can be arranged on or in the base. The reinforcement can alternatively or additionally comprise metal angle elements which are located in the base of the U-shaped

nuorschn i tt-.r; &tgr;&eegr; End the corners of the profile.

The cavities of hollow manifolds can have different widths.

The profile can be

be designed so that a locking part covers a range of widths that fits cavities of different 3widths. Alternatively, with the appropriate mounting design of the profile, an additional part

which is attached along the front part as its lateral extension which extends beyond one of the opposite sides of the closing part. The additional part can be provided with a spacer wall which projects from it and, when the additional part is attached to the front part, is spaced from the adjacent side of the closing part and extends substantially parallel to this, so that the spacer wall and the closing part can extend into the cavity of a cavity masonry, while the spacer wall and the side of the closing part facing away from it lie on the opposite sides of the cavity. The additional part thus assists the closing part in closing the cavity if this is wider than the closing part itself. The additional part can be designed in such a way that a second additional part, preferably of a similar or approximately similar shape, also with a spacer wall, is attached along the first additional part. ¹ to make the strip suitable for installation in an even wider cavity of a cavity masonry.

··

The cavities mentioned generally have three standard widths: 50 mm, 65 mm and 75 mm. This gives the locking part itself a width that is preferably suitable for a 50 mm wide cavity, while the additional part for the front part makes the profile suitable for use with a cavity width of 65 mm, and the further additional part makes the profile suitable for use in a cavity with a width of 75 mm.

In a preferred embodiment, the additional part and an edge portion of the end part are designed in the manner of a tongue and groove connection in order to fasten the additional part to the end part. The engaging surfaces at the connection points can be grooved, ribbed, corrugated or otherwise shaped in order to create a mechanically locking engagement which increases the security of the fastening to the end part. Alternatively, a tight frictional connection can be provided and an adhesive can additionally or alternatively be provided to secure the connection. The additional part is preferably designed in such a way that it can be fastened to another

Additional part can be attached to attach the profile to a wider cavity as mentioned above.

Insulating material, such as foam, may be placed in the cavity of the closure member. When the additional part or parts are used, insulating material may be placed between the closure member and the spacer wall of the additional part, and also between the spacer walls of both additional parts. When rigid insulating material is used, this can be used on the end part along the closure member as a means of adapting the profile to cavities such that the insulation can be placed in a manner that is not restricted to the purpose of the closure member.

In the following, embodiments of the invention are explained in more detail with reference to the drawing. They show:

Fig.1

a horizontal sectional view through a lining of a window frame and the adjacent parts of a profile which defines the opening in a cavity wall in which the window frame is to be mounted;

Fig.2

a vertical section through cL·.. base beam of the window frame, in connection with adjacent parts of the profile in the cavity masonry;

Fig.3

a vertical sectional view through the window closure of the window frame, in conjunction with adjacent parts of the profile, the cavity masonry and a lintel;

Fig.4

a sectional view through a modified profile with a locking part and additional parts; and

Fig.5

a sectional view through a profile,

similar to that shown in Fig. 4, with the insulating material used indicated by dashed lines.

In this embodiment of the invention, a

Profile for mounting a

window frame. The profile has the required outline shape, so it is usually square or rectangular for an opening to accommodate the window frame. The profile is in the

It is essentially rigid and is an extruded profile made of plastic, for example polyvinyl chloride or polyethylene, which can act as a vapor barrier in the opening. Two forms of strips are used to construct the profile. One form is used for the bottom part and the two sides of the profile, the other form is used to produce the top of the profile.

- 10 -

Figures 1 to 3 of the drawing show a profile generally designated 1, the first strip shape 1' being shown in Figures 1 and 2 and the second strip shape 1" being shown in Figure 3. The strip 1' is a one-piece extruded profile which has a hollow closing part 2 of square cross-section with a front wall 3, a rear wall 4, an inner side wall 5, an outer side wall 6, a flat front part 2 of panel-like shape formed integrally with the inner side wall 5 of the closing part and a flange 8 forming a shoulder which is formed integrally with the front part, extends centrally and in the longitudinal direction of the front part from it and protrudes at right angles from the inside of the front part, facing away from the closing part. The outer width dimensions of the walls of the square section of the locking part correspond essentially to the standard width of a wall cavity. At 9, the front part 7 protrudes laterally by approximately equal distances from the front wall 3 and the rear wall 4 of the locking part 2. Openings 10 are drilled through the lateral projections 9 of the front part to accommodate fastening screws. The other form of the strip 1" has no locking part. The strip has an essentially T-shaped cross-section with a front part 2 of flat, approximately panel-shaped shape. A flange 12 defining a shoulder protrudes vertically from the front part 11. Openings 13 for fastening screws are drilled through the front part.

Three lengths of strip 1', cut to suitable lengths, are assembled to form the horizontal base and the two upright side parts of the profile, the flanges»

'&Lgr; is ^located on the inside of the profile. Plugs made of wood or plastic, for example, not shown, are frictionally inserted into and secured to the opposite ends of the locking parts of the two upright side elements. The ends of the base extend below the square bottom ends of the two upright elements of the profile, with the flanges cut off so that the front part lies flush against the bottom ends of the upright side parts of the profile. The base is connected to the side elements of the profile by nails or screws driven into the bottom plugs on the side parts. A length of the strip 1" cut to a similar length to the base strip 1' is attached to the upper ends of the two upright side elements of the profile to form the horizontal top of the profile. Again, the fastening is achieved by nails or screws driven into the plugs at the upper ends of the side pieces. The flanges 8 and 12 of the strips are cut to meet butt or mitre at the corners of the profile. The finished profile defines through the inner sides of the end pieces of the joined strips an opening whose size is complementary to the external dimensions of the window frame for which the profile is intended.

The cavity wall, for example consisting of bricks, bricks and blocks or bricks/blocks and a wooden frame, into which the window frame is to be installed, is built in the usual way up to the required height of the window sill. Then the profile 1 is positioned on the wall.

2 -

The closing part of the base is inserted into the cavity and the front part of the base rests on the two parapet faces of the wall. When the profile is in position, the bricklaying is continued. The reveals of the wall are directed to and brought up to the faces of the two upright side parts of the profile so that the closing parts of the side parts of the profile extend into the wall cavity as the brickwork is raised up the sides of the profile. When the brickwork reaches the top of the profile, a lintel 14 is placed over the profile and the brickwork is then continued above the profile in the usual manner. In Fig. 3 a prefabricated lintel 14 of known design is used, but a different design of lintel may be used instead.

The engagement of the locking parts of the base part and the upright side parts of the profile in the cavity locates the profile exactly within the masonry. As additional fastening means, screws 15 are inserted into the openings 10 and 13 of the front parts and anchored in the reveals of the wall and in the lintel 14.

The profile itself provides a vapor barrier in the opening, so that no further vapor barriers are required.

While the construction of the masonry continues after positioning the profile, and while further work is being carried out at the place where the window frame is to be inserted, a protective cover (not shown), for example a polyethylene film, is preferably placed over the front of the profile.

f - Π -

to close the opening.

Before the window frame is fitted, a window sill 16 is fitted to the inside of the opening above the inner wall reveal and the overlapping face of the profile base as shown in Fig. 2. Plaster and/or a dry lining system 17 can then be applied to the inner surfaces of the masonry. Flanges 8 and 12 provide a guide to the height when applying plaster and/or dry lining around the window opening.

When the window frame is to be installed, the protective cover is removed and the profile is further cleaned of any mortar" ¹ or other debris.

The window frame is inserted into the profile from outside, preferably with the window sashes removed, and maneuvered into the opening until it abuts against flanges 8 and 12. Insulating material 18 is inserted between the parts of the frame and the adjacent end parts of the side elements of the profile, as well as between the head piece or the finial 20 of the window frame and the end part of the upper element of the profile. Fastening screws 21 and adjustable wedges (not shown) of known design are used to fasten the window frame to the masonry at the sides of the profile and to adjust the frame in the opening. The fastening screws 21 are passed through the adjacent end parts of the side elements.

of the profile, whereby the trace elements can be drilled on site to accommodate the screws.

As shown in Figs. 1 and 3, the legs 19 and header 20 of the window frame have sealing strips 22 near their front sides which abut against the outer wall of the masonry in front of the adjacent front part of the side elements of the profile, while a front extension 23 of the lintel is located in front of the side part of the horizontal upper element of the profile. Cover strips 24 are attached to the front edges of the legs and header to close off the gaps around these parts of the window frame.

Putty 25 (Fig. 2) is used to seal the gap between the base beam 26 of the window frame and the underlying top of the parapet in front of the adjacent front part of the profile base. As can be seen from Fig. 2, the base beam of the window frame has an aluminium extension 27 which extends over the outer edge of the outer reveal: To complete the assembly of the window frame, putty 28 and cover strips 29 are applied to plastic strips over the inner ends of the flanges 8 and 12 which protrude above the plaster and window sill so that these parts are hidden from view.

Finally, the window sashes are inserted into the window frame. Since the window is already glazed and finished, no further work is required on the window.

Reference is now made to Figures 4 and 5 of the drawing.

Fig. 4 shows a modified form of a strip 30 which is designed to be used for the bottom part and the two side parts of the profile for a window frame opening in a cavity wall. The strip 30 has a flat end part 31 in the form of a sheet or panel which is formed integrally with a closing part 32 which is channel-shaped in cross section and which extends longitudinally on one side of the end part in an intermediate section of the end part and is offset to one side in the width direction of the end part.

On the opposite side of the end portion 31 there is an integral shoulder defining flange 33 which extends longitudinally of the end portion on the side facing away from the closure portion 32 and is offset inwardly from the center of the width of the end portion. A line of weakness 34 in the flange 33 is defined by a local thinning approximately midway along the height of the flange. The line of weakness 34 extends parallel to the end portion and allows an outer portion 35 of the flange to be broken off by hand if required. Typically the complete flange has a height which provides a dimension for plastering the window opening defined by the profile to a thickness of about 25 mm. When the outer portion 35 is removed the reduced flange provides a height guide for plastering to a thickness of about 12 mm.

U-

The closure part 32 is connected to the front part 31 at the base 36 of the flat cross-section and has parallel front and rear walls 37 and 38 of uniform pitch which extend at right angles with respect to the front part. The front ^wall 37 is higher than the rear wall 38. An undercut groove 39 is formed in the front wall 36 which receives a support 40 of complete cross-section made of a reinforcing metal, for example galvanized steel.

A rear edge portion 41 of the end piece 31 is of reduced thickness and forms a lateral tongue extending along the length of the end piece. Along this rear edge portion 41 and along the end piece near its front edge are openings 42 for fixing screws ^or nails by means of which the end piece is secured to the inner and outer reveals of the cavity masonry to which the profile is attached. The opposite sides of the rear edge portion 41 are roughened by ribbing 43 which extends parallel to the adjacent edge of the end piece. On the side from which the flange 33 projects, the ribbing 43 extends almost to the flange and the adjacent side of the flange has similar ribbing 44, the ribbing 43 and 44 of these two surfaces forming an anchor for plaster.

When the profile is installed in the cavity masonry, the closure part extends into the cavity and the front part overlaps the ends of the inner and outer reveals to which the front part is secured by fixing screws or nails passing through the openings 42. The front wall 37

&bull; 4 ··

and the rear wall 38 of the closure member are normally adjacent to the facing sides of the cavity.

If the profile is to be used for cavity masonry where the cavity is wider than the closing part 32, a first lug 45 can be attached to the rear edge section 41 of the end part 31 to make the strip 30 ready for use in this case. The additional part 45 forms a lateral extension of the end part and runs along the back of the end part. The additional ^part has a double egg-shaped section 46 which is applied by butt-jointing to the rear edge section 41 so that a nut and bolt connection is created between the additional part and the end wedge. The inner surfaces of the fork-shaped section 46 are provided with a ribbing 47 which engages with the ribbing 43 of the rear edge section so that a mechanical locking of these two parts is provided. The additional part has a spacer wall formed integrally with it in the form of a flange 48 which projects vertically from one leg of the fork-shaped section 46 near the inner end of this section.

?and has a similar height as the rear wall 38 &rgr; of the locking part. When the additional part is fitted onto the front part 'l , the spacer flange 48 is

f rear wall and runs parallel to the

, rear wall, in order to increase the width of the locking part for the

% To extend the intervention in a wider cavity.

&zgr; . The front wall 37 of the closing part extends

adjacent to the outer lining of the cavity wall, &ngr;.' and the spacer flange 48 extends adjacent

to the inner lining of the cavity wall.

In alignment with one leg of the forked section, with its inner end extending away from this leg, there is provided on the additional part 45 a tongue section 49, similar to the rear edge section 41 of the front part. The tongue section 49 also has ribbing 50 and spaced openings 51 for fixing screws or nails. The tongue section can be brought into engagement with a complementary forked section 52 of a substantially similarly designed second additional part 53 which can be attached to the first additional part in order to make the profile suitable for use in a cavity wall with an even wider cavity.

As can be seen from the drawing, the second additional part ¹ 53 is wider than the first additional part and its spacer flange 54 is located at the closed inner end of the forked section 42 instead of on one leg, although the F ¹ flange 54 has approximately the same height as the flange of the first additional part.

The ribbing 43, 44 on the rear edge portion 41 and the flange 33 as well as the ribbing 47, 50 of the first additional part 45 and that of the second additional part 53 can be omitted, although the ribbing is preferred.

Fig. 5 shows a strip 55 which is essentially similar to the strip 30 according to Fig. 4. The strip 50 has a front part 56, a flange 57 defining a shoulder and a closing part 58 which is channel-shaped in cross section, but the rear edge section 59 of the front part is laterally extended further than in the previous example. In the cavity of the closing part between its front wall and

The rear wall is an insulating rigid foam 60 ^of rectangular cross-section, the length of which is complementary to the width of the closure part 58. The foam 60 is preferably secured in the recess of the closure part with an adhesive. For a cavity masonry with a wider cavity, additional insulating rigid foam 61 of suitable size may also be present to compensate for the additional width of the cavity. The additional foam 61 is secured along the closure part to the rear edge section 59.

As can also be seen from Fig. 5, an insertion stop 62 can be provided on the profile in order to accommodate a window of less than usual thickness in the profile. The insertion stop 62 is provided in the angle between the end part 56 and the front of the flange 5b. It is dimensioned so that it protrudes from the end part by a distance which is approximately equal to the height of the flange. Screws (not shown) pass through holes in the flange 56 and serve to fasten the insertion stop 62 to the flange.

Claims (10)

a&eegr;spräche 1. Profile for defining an opening for a window or door frame in a masonry, characterized in that the profile has a substantially T-cross section, with a flat front part (11) with opposing first and second flat surfaces, of which the first surface rests against a surface of a masonry at the edge of a window or door frame opening in the masonry, which faces the opening, and with a flange (12) extending in the longitudinal direction of the profile, which projects perpendicularly from the second surface in the middle section of its width and forms a stop shoulder for the window and door frame. 2. Profile for defining an opening for a window or door frame in a cavity masonry, characterised in that that the profile has a uniform shape, with a closing part (2, 32, 58) which extends into the cavity of a cavity masonry and closes the cavity, furthermore with a flat front part (7, 31, 56) with opposite first and second flat surfaces, the closing part (2, 32, 58) projecting from the first surface and the first surface projecting on both sides from the opposite sides of the closing part (2, 32, 58), furthermore with a flange (8, 33, 57) which extends in the longitudinal direction of the profile and which projects perpendicularly from the second surface of the front part (7, 31, 56) in the middle section of its width from the surface opposite the closing part (2, 32, 58), and with a stop shoulder for the window or door frame. -2- 3. Profile according to claim 1 or 2, characterized in that the flange (8, 12) protrudes from the front part (7, 11) by such a distance that a guide for the plaster is created. 4. Profile according to claim 1 or 2, characterized. that the flange (33) protrudes from the front part (31) by such a distance that a guide for a first layer of plaster is created, and that the flange (33) has a weakening line (34) in an intermediate region, which is spaced from the front part (11) and extends parallel to it, whereby an outer part (35) of the flange (33) can be removed. 5. Profile according to claim 2, characterized in that the closing part (2) has a hollow, closed cross-section. 6. Profile according to claim 2, characterized in that the closing part (32, 58) has a U-shaped cross-section with two opposing walls (3, 4; 37, 38) which protrude approximately at right angles from the surfaces of the front part (7, 31, 56) against which the reveals of the cavity masonry strike, and are spaced from one another in such a way that they fit closely into the nearby cavity of the masonry. 7. Profile according to claim 6, characterized in that a reinforcing plate or a reinforcing strip (40) is provided in the base (36) of the closing part (32) and the U-shaped cross section. -3- 8. Profile according to claim 2,
characterized, that it has an additional part (45) which is designed to be fastened along the front part (31) as a lateral extension thereof which extends beyond a side (38) of the closing part (32), that the additional part (45) has a protruding spacer wall (48) which, when the additional part (45) is fastened to the front part (31), is spaced parallel from the adjacent side (38) of the closing part (32) such that the spacer wall (48) and the closing part (32) extend into the cavity of the cavity masonry, the spacer wall (48) and the side (37) of the closing part (32) abutting on the opposite sides of the cavity. 9. Profile according to claim 8,
characterized, that it has an associated second additional part (53) which is laterally attached to the first additional part (45), that the second additional part (52) has a protruding spacer wall (54) which, when the second additional part is attached to the first additional part, extends parallel to the spacer wall (48) of the first additional part at a distance in such a way that the spacer wall (54) of the second additional part (53) extends into the cavity of a cavity masonry, and that the spacer wall (54) and the side (37) of the closing part (32) rest on mutually facing sides of the cavity. 10. Profile according to claim 5 or 6, characterized in that insulating material (50) is provided in the cavity of the closing part (58).