CN1596330A

CN1596330A - window cover

Info

Publication number: CN1596330A
Application number: CNA028236424A
Authority: CN
Inventors: P·E·斯笛伯尔特
Original assignee: OMNIFLX PROFILES Inc
Current assignee: OMNIFLX PROFILES Inc
Priority date: 2001-10-16
Filing date: 2002-10-16
Publication date: 2005-03-16
Also published as: JP2005507036A; MXPA04003562A; RU2004114872A; CA2464079A1; WO2003033834A3; WO2003033834A2; US20030070370A1; EP1442182A2

Abstract

A window wrap (100) for receiving and protecting varying thickness drywall around a rough window frame, forming a window frame with perfectly square corners. The window wrap (100) has a jamb/sill extension (304) and a wall extension (302), each extending perpendicular to each other. The wall extension (302) has a front surface (106), a rear surface (108), and a reinforcing structure extending between the front and rear surfaces and is adjustable to fit various thicknesses of drywall panels. A layer of primer or adhesive laminate is applied to the front surface (106) of each extension so that paint can adhere to the front surface (106). The jamb/sill extension (304) of the window wrap may also be made similar to the wall extension (302) and used to form any depth of jamb/sill.

Description

Exterior window trim

Technical field

The present invention relates to exterior window trim, more specifically to a kind of exterior window trim that can be used to modify window dry wall edge on every side.

Background technology

Window frame typically is made up of other post and head and bottom rail, and forms rectangle.When building is being built, at first construct coarse window frame, so that the space of window by body of wall to be provided.Thick frame can constitute with multiple material, the wall structure at place, form family and deciding, but typically slightly frame constitute with 2 * 4 or 2 * 6 pilaster.Dry wall can be arranged on the framework surface of body of wall then, and in thick window frame around openings.Dry wall around thick window frame forms corner then or by the dry wall panel with other post of formation complete frame and crosspiece, utilize any conventional method of finishing the dry wall corner, perhaps exterior window trim is made with timber or other material, provides complete framework also to use around the dry wall edges cover window frame of unmodified.

The method that these tradition are built complete window frame is time-consuming, and needs experience craftsman's skill when correctly making.

The dry wall panel is widely used in inwall and the ceiling that forms the room in construction industry.The dry wall panel is made with the reinforcement gypsum core of gypsum or covering paper.The dry wall panel has to be easy to be cut into needs size and attached to the advantage on all kinds framework.But the dry wall panel very becomes straight and smooth and meets the shape at perfect right angle in its edge of difficulty cutting, and this is desirable aesthetically.In addition, when the dry wall panel cuts into the size of requirement, outside the edge of panel just is exposed to.The gypsum core of these exposures be soft and trend towards cracked, unless the edge that cut grants asylum.This is for body of wall exterior angle particular importance.

When window frame used that frame material is made such as timber, the inside and outside corner of Xing Chenging seldom was ideally straight thus.Crooked and inharmonic building way of small variation on the wood frame part dimension, timber can cause wall and the faulty right angle of window frame joint.When the dry wall panel then attached to the frame material of bending on the time, its junction also can be crooked.

Once used multiple device and obtained smooth and durable facial ornament, such as existing on the window frame of completion so that abut to form the junction of interior or outer corner on the both sides of dry wall.That uses in traditional devices is dry wall band and metallic seal bar.Traditional dry wall band is a porous paper tape long and narrow, the coiled reel.These paper tapes are bored a hole sometimes to increase the wet steam penetrability and prevent to sandwich bubble below paper tape.The dry wall tape leader is applied in the dry wall slab joint and the edge of adjacency earlier, uses wet mortar (being sometimes referred to as " mud ") to smear then.Then plaster modify along the paper tape edge and troweling with the line of demarcation between hiding paper tape edge and the dry wall panel (above lay paper tape).After the wet mortar drying, paper tape and dry wall should paint or cover with suitable coating for wall surface.

When applying plaster, the both sides of inner corner need a large amount of skills so that obtain perfect straight seam.In addition, for correcting because the bending that crooked frame unit and inharmonic way described above are caused, often must which floor plaster of coating, and between each time applies, need time waiting drying all day.Even so, perfect straight corner is seldom arranged.Unless in the staff of the highest skill, trowel also may will be made a mess of first limit of plaster when processing second limit.In case the plaster coating finishes and be dry, it must sanding arrive suitable fineness, so that have suitable surperficial fuel feeding lacquer or wallpaper construction.

Because the dry wall band is made of paper, it is considerably soft and meets the surface of dry wall interface panel edges shape.When traditional clear water wallpaper band was applied in the outer corner of body of wall, the flexibility of paper tape often caused irregular corner line of demarcation, because paper tape meets scrambling that expose, the cut-out edge in the dry wall panel.Paper tape also is frangible and can not bears mishandling of often suffering on the body of wall exterior angle.As a result, traditional dry wall paper tape can not use on the body of wall exterior angle that exposes.

In architectural construction,, therefore often adopt the metallic seal bar for modifying the exterior wall corner.The conventional metals weather strip is shaped as L-shape or angle section and typically makes with perforated metal is rectangular, such as galvanized sheet, for good and all is bent to form long angle at vertical 90 degree.The metallic seal bar typically is positioned at the junction of contiguous dry wall panel (forming the exterior angle in room mutually with right angle intersection).Metallic seal bar section is being positioned on the wooden supporting construction spare of dry wall panel back by dry wall panel nail with nail.Cover the metal rim or the supporting leg of metallic seal bar then with the wet mortar smoothing, the edge smoothing of plaster and troweling are so that hide metal edge simultaneously.

The rigidity of metallic seal bar does not allow that the exterior angle modification in the construction wall becomes obviously straight edge (pleasing on aesthetic view point), therefore uses the metallic seal bar to involve some great problems.Along with the time goes over, metal corner weather strip is with corrosion, and surface of wall produces apparent embroidery spot on corner thus.General is not often may cover the edge of metal rim fully or be used for the metallic seal bar is fixed on the head of the nail on the dry wall panel, thereby reduces the desirable smooth appearance of body of wall.The plaster that covers on the outside of flange usually produces the crack.For preventing the crack, often apply two or three layers of plaster, wherein front one deck must etc. to be dried and sclerosis, this need reach 24 hours in wait before following one deck coating.When corner since below frame problem and crooked or when becoming breach, the metallic seal bar can not cover enough superficial areas or have the enough flexible scrambling that exists of correcting.Another intrinsic problem is to make having ductile metal to have very poor Memorability and being easy to indenture or corrugating of metallic seal bar, is difficult to the surface that its straight generation is smooth after this.Therefore because most of materials are all treated brusquely in the building site, these steel bands are often done into wrinkle, indenture and may be twisted, and make it can not use or only can be used for producing effect inferior.In addition, metal tape uses in a large number under construction cost is increased to a great extent.

Also have, when the dry wall corner was used for modifying window frame, the framework of generation did not insulate.Such framework is not very firm and the crack is developed on the window frame corner of being everlasting.Outside air will take place then to bleed indoor.

If adopt traditional exterior window trim, the framework comparatively robust of generation and may insulating, but it needs extra time, material and mounting cost.Traditional exterior window trim so also is inclined to and Lou advances outside air.

Therefore, need the exterior window trim at a kind of protection dry wall edge around the window, it provides the window frame of completion and improves straight corner, and firm, insulation, eliminates outside air and bleed around the window frame, and uses easily and economically.

There is not a kind of above-mentioned traditional method of finishing window frame can satisfy these requirements.

Exterior window trim described herein can satisfy all these requirements described above.This exterior window trim has the corner that forms perfectly and can be used on the other post/crosspiece of any degree of depth.The dry wall edge that this exterior window trim covers and protection window frame inner peripheral edge exposes, and can adjust so that cooperate all thickness of dry wall panel.This exterior window trim can be insulation and can seal and prevent that outside air from bleeding.At last, because the cross sectional shape of its simplification, this exterior window trim can be made economically.

Summary of the invention

A kind of exterior window trim is used for holding and protects and is centered around rough window frame all thickness dry wall on every side, forms the window frame with perfect square corner.This exterior window trim has other post/crosspiece extension and wall extension, and each extends orthogonally.The wall extension have front surface, rear surface and extend in the front and the surface, back between reinforcement, and can adjust so that cooperate all thickness of dry wall panel.On the front surface of each extension, apply the laminated sheet of one deck priming paint or viscosity, paint can be bonded on the front surface.Other post/crosspiece the extension of exterior window trim also can be made similar in appearance to the wall extension, and is used for forming any other post/crosspiece degree of depth.

Brief Description Of Drawings

The present invention can more easily obtain understanding in conjunction with the drawings, wherein:

Fig. 1 is the part stereogram of an embodiment of the parts that are used for forming the exterior window trim each several part according to the present invention;

Fig. 1 a is the part stereogram of an alternate embodiment of the parts that are used for forming the exterior window trim each several part according to the present invention;

Fig. 1 b is the part stereogram of another alternate embodiment of the parts that are used for forming the exterior window trim each several part according to the present invention;

Fig. 2 shows the sectional drawing that is used for forming the preferable parts of exterior window trim each several part according to the present invention;

Fig. 3 by take among Fig. 2 the detailed cross sectional view of circle part, show that the dry wall corner that is used for forming the exterior window trim each several part according to the present invention modifies the front surface of device, covering one deck priming paint it on.

Fig. 4 shows and to take from the detailed cross sectional view of enclose part among Fig. 2, shows the front surface that is used for forming the dry wall corner modification device of exterior window trim each several part according to the present invention, the laminated sheet of covering one deck viscosity on it;

Fig. 5 show the dry wall corner that is used for forming the exterior window trim each several part according to the present invention modify device, and crooked 90 degree become the sectional drawing of outer corner.

Fig. 6 is the center-line joint detailed cross sectional view of modifying device as the dry wall corner that Fig. 2 shows, shows the embodiment with inclined-plane seam device;

Fig. 7 is two part stereograms that respectively are bent to form the dry wall device at exterior angle, and wherein its end cut angle becomes 90 ° of inclined-planes and engages when putting together.

Fig. 8 shows that four dry wall corners modify the front perspective view of devices, wherein respectively is bent to the exterior angle, and its end cut angle forms mutual 90 ° of inclined-planes and engage, and connects and form exterior window trim of the present invention together.

Fig. 9 shows the exterior window trim rear perspective view that shows among Fig. 8.

Fig. 9 A shows the rear perspective view of another embodiment of exterior window trim.

Figure 10 is an exterior window trim front elevation drawing of the present invention.

Figure 11 is an exterior window trim rear elevation of the present invention.

Figure 12 is an exterior window trim lateral view of the present invention.

Figure 13 is wall or other post/crosspiece extension sectional drawing, shows that it is at the dry wall panel that uses between dry wall panel and the extension after applying plaster.

Figure 14 (a), 14 (b) and 14 (c) they are the fragmentary cross-sectional view of wall or other post/crosspiece extension, illustrate extension and 1/2 " use of the dry wall panel of thickness.

Figure 15 (a) and 15 (b) they are the fragmentary cross-sectional view of wall or other post/crosspiece extension, illustrate device and 5/8 " use of the dry wall panel of thickness.

Figure 16 is the fragmentary cross-sectional view of another wall or other post/crosspiece extension, illustrates device and 5/8 " the dry wall panel of thickness and be fixed on the use of plate on the frame construction.

Concrete embodiment

The dry wall panel is traditionally with predetermined width supply, for example 1/8 inch, 1/2 inch and 5/8 inch etc., and do not mean that all be included in.Exterior window trim of the present invention can meet the dry wall panel of any width that is adopted.

Exterior window trim of the present invention preferably adopts the dry wall corner to modify the device component manufacturing, and this device belongs in the past but patent application co-pending, application numbers 09/888,011.Therefore, will at first describe the dry wall corner and modify device component, and describe with the dry wall corner subsequently and modify the exterior window trim that device component is made.

Turn to Fig. 1 and 1a, the left wing 102 of dry wall corner modification device component and right flank 104 are attached to connection 100 in the middle of flexible and extend outwardly into distal edge.In Fig. 1 a, aerofoil 102,104 has front surface 106 and rear surface 108.Front surface 106 and rear surface 108 extend outwardly beyond the outer support 110 of aerofoil 102,104.When the dry wall corner is modified device covering interior angle or exterior angle, exist side by side for the framework of interior wall in the rear surface of device, and front surface 106 is towards the room, with the dry wall panel surface adjacency that forms wall.In Fig. 1 embodiment, 104 of aerofoils have front surface 106.Front surface 106 can be as shown in Figure 3 covers with one deck priming paint 300, and it will be easily bonding making and be used for the paint or the coating for wall surface of decorative wall subsequently.Alternately, front surface 106 can be in the above bonding with the laminated shim of viscosity as shown in Figure 4.

Modify in the preferred embodiment of device at the dry wall corner, on front surface 106, adopt laminated shim 400.For obtaining optimum efficiency, laminated shim should be ductile or flexible character, makes laminated shim work as device unlikely breaking when the bending of flexibly jointed chain place, but has the surface characteristic similar to the dry wall panel in others.By test widely, optimum is the papery laminated shim of making at the Fibermark that uses Massachusetts Fitchburg, sells with production code member X41693.Should be appreciated that disclosing this specific laminated shim does not limit the present invention and only adopt this laminated shim, also do not get rid of and use other to be suitable for the laminated shim of this device.

In preferred embodiment, the papery laminated shim is fixed on the device with pressure sensitive adhesives, and cementing agent is applying maintenance softness under back and the normal operating condition at device.By test widely, optimum is to use the cementing agent of the Worthern industrial group of state of New Hampshire Nashua, sells with production code member Nylco E-68.This cementing agent provides the combination of fusion level between device and laminated shim, greatly reduce the tendency of laminated shim from device isolation.Other suitable cementing agent comprises that those neither can harden and do not destroy the extension character of papery laminated shim.

Device itself can be made with extrusion molding with various materials.In preferred embodiment of the present invention, adopt the PVC plastics, by the Veka company manufacturing of Pennsylvania Fombell, sell with production code member X-15.Should be appreciated that disclosing this certain material does not limit the present invention and only adopt this material not get rid of other material that employing also is fit to this device yet.

The structure that the dry wall corner is modified device component more clearly shows in Fig. 2.Connect in the middle of flexible 100 preferably from each wing front surface extend to another side and or diminish gradually or become parallel wall body, but should be appreciated that any connection shape, can make device connect all can using of 100 bendings in the centre by various angles such as arc, V-shape, U-shape, C-shape etc.Middle connection 100 forms corner or edge along the axis extension of extending linearly.

The embodiment of the connection that diminishes gradually 101 at flexibly jointed chain place has the front surface that is parallel to device front surface 106 extensions.Diminish gradually and inwardly and tend to front surface and diminish gradually connect 101 rear surface from both wings.As in Fig. 6 more clearly as seen, when device was crooked along junction, sharply and clearly the corner thinnest part that connects 101 front surfaces along diminishing gradually formed.

The embodiment of the connection that diminishes gradually 101 at flexibly jointed chain place can be used for forming interior angle and exterior angle.

The pillar 206 of some separates the rear surface 108 of each aerofoil 102,104 and the front surface 106 of each aerofoil 102,104.In embodiment shown in Fig. 1 a, 1b and 2, the pattern of pillar 206 provides stability and also makes device center on its exterior angle folding to the structure of corner device, as discussing in more detail following.Pattern for pillar 206 shown in the obvious Fig. 1 of the skilled person and 2 is not unique stability and fold characteristics of providing, and other pattern also may be suitable and be included in the present invention.

The edge 202 of rear surface 108 extends outside the edge 200 of front surface 106.The outside 204 of front surface 106 diminishes to rear surface 108 a little gradually, as discussing in more detail following, the dry wall face plate edge can be put into the space 114 between front surface 106 and the rear surface 108, makes the edge 202 of rear surface 108 and the edge 106 of front surface 106 closely face the dry wall panel.

Flexible flange connection 113 is positioned at the junction of rear surface 108 and outside 110.Rear surface 108 can be crooked in flexible flange connection 113 then, pivot thereby make rear surface flange 112 connect 113 around flexible flange, and the space 114 between adjusting front surface 106 and the rear surface 108 is to cooperate all thickness of dry wall panel.

Should be appreciated that being different from flexible flange that Fig. 1-13 illustrates connects 113 type and also can adopt in the present invention, and the present invention includes connection type and the design that all can provide above-mentioned bending and pivot.

In the preferred embodiment of this device, front surface 106 and rear surface 108, when they during to the remote extension of each aerofoil 102,104, diminish gradually mutually a little.Like this smooth transition on the surface of the dry wall panel that helps lend some impetus to the surface of device and insert of diminishing gradually of aerofoil 102,104.

Fig. 5 illustrates dry wall corner modification device and connects 100 places crooked 90 ° (as arrow 500 indications) in the centre to form the exterior angle.Need four dry wall corners to modify device, each forms 90 ° of exterior angles, as the other post/crosspiece part of exterior window trim.Four parts of exterior window trim are made up of two other posts, head crosspiece and bottom rail.

As shown in Figure 7, the end cut of each several part becomes angle to be formed on the connection of 90 ° of inclined-planes joints that respectively connect between the end.In this configuration, the aerofoil that the dry wall corner is modified device forms wall extension 302 and other post/crosspiece extension 304 now.

Fig. 8-12 shows four other post/crosspiece parts, and the formation exterior window trim is assembled together.These parts connect 306 on each inclined-plane and connect.Other post/the crosspiece part can be bound up in any way, and preferable connection is to connect with the inclined-plane.The inclined-plane connects and can be fixed together with securing member or cementing agent.But, the mode of preferable connection end, connection inclined-plane is each end fusion or welding mutually.So manufacturing can be formed on the joint of air and water-stop between the adjacent part.The wall extension 302 of each several part all stretches out and is in the same plane from middle junction.Other post/the crosspiece of each several part all extends back from middle junction now, and each extension is perpendicular to the extension of adjacency.

So, by changing other post part and the crosspiece length partly that is bound up simply, above-mentioned exterior window trim can create the window frame that holds virtually any size.It is other that post/the crosspiece extension also can change to hold the other post/crosspiece degree of depth of any requirement.If the other post/crosspiece degree of depth that requires is shallower than the length of other post/crosspiece extension, the extension can cut to the correct degree of depth.If but the other post/crosspiece degree of depth of Yao Qiuing is deeper than other post/crosspiece extension, can in other post/crosspiece extension, insert a slice dry wall so that the degree of depth of requirement to be provided.

The exterior window trim that can directly insert as the unit enters rough window frame then.Be preferably between the rear surface 202 of wall extension 302 and thick window frame and use cementing agent.But between exterior window trim and thick window frame, also can use trim slots or joint filling.Use cementing agent can consider the sedimentation of exterior window trim, reduce the chance in crack on the exterior window trim corner, and almost airtight joint is provided between exterior window trim and window frame.Dry wall panel on the framework body of wall around the window frame can insert the space 114 of the body of wall extension 302 of exterior window trim then.

In Figure 13, as an example, the extension of exterior window trim is fixed on the wall frame 800 with nail 806.Exterior window trim is preferably made so that allow nail with enough soft plastics and is passed the flange of rear surface 108, does not need to be pre-formed aperture.Understand, other are such as adopting methods such as screw, bolt, cementing agent with should be understood that, are placed on the supporter of framework effectively same at fixed casement window.The position of the permanent position of exterior window trim and nail 806 can change corrects because the inhomogeneities that exists for adjacent elements with frame unit 800 in the framework exterior window trim.If desired, exterior window trim can be placed pad in the exterior window trim back before fixing with nail 806 or cementing agent.The edge of dry wall panel 804 is inserted in the space 114 between front surface 106 and the rear surface 108, makes dry wall panel 804 be close to the outer pillar 110 of aerofoil 102,104.From Figure 13 as seen, the space 114 between front surface 106 and rear surface 108 just in time is large enough to hold dry wall panel 804 and front surface 106 and rear surface 108 and is closely existed side by side with dry wall panel 804.The hidden thus nail 806 of dry wall panel 804.Dry wall panel 804 is fixed on the framework 800 in common mode.

As shown in figure 13, on the edge that diminishes gradually of distal portions 204 that front surface 106 diminishes gradually and dry wall panel 804, apply plaster 1300 then with concealed edges 200 and provide smooth and even curface.Because 1300 in plaster puts on the part 204 that diminishes gradually of modifying device, can avoid in corner, applying the intrinsic difficulty of plaster.These difficulties are included in the corner difficulty of handling trowel, produce the required skill of flawless ground straight edges and need multilayer plaster 1300 so that the seam between complete hidden exterior window trim and the dry wall or correct owing to dimensional error, place the inhomogeneities that the frame unit of wrong or distortion produces, the drying time that also has each layer needs quite to grow in the both sides of corner intersection.In case plaster 1300 has applied, wall surface or other post/crosspiece can be painted, the method for wallpaper or any other requirement is modified.The priming paint 300 that is bonded on the front surface 100 is bonded on the front surface 106 of modifying device paint or other wall covering.In another embodiment, laminated shim 400 can be bonded on the front surface 106 so that be provided as the surface of paint subsequently.

Also can use plaster alternative concealed edges 200.The plaster alternative comprises, but is not limited to plucking plaster, synthetic plucking plaster and cement byproduct.

Alternately, exterior window trim can not apply plaster and installs with hidden exterior window trim edge between exterior window trim edge and dry wall.Exterior window trim can apply paint then or provide apparent edge on every side at the edge with the method for any requirement.Another kind of replacement scheme is to place to mould thing and hidden exterior window trim on exterior window trim and dry wall edge.

Figure 14 (a) illustrates wall or other post/crosspiece extension is in resting position.When shown in Figure 14 (b), 1/2 " dry wall panel 1500 was inserted in space 114 between the edge 200,202, dry wall panel 1500 kept being pressed on the flange of rear surface by edge 200, shown in Figure 14 (c).

Figure 15 (a) illustrates 5/8 " the dry wall panel is inserted in the space 114 between the edge 200,202.Under big thickness dry wall panel 1600 situations, rear surface flange 112 connects 113 (to front surface 106 outsides) at flexible flange and pivots.Front surface 106 is because outer pillar 110 keeps relatively straight, and outer pillar 110 leaves the end of each wing and tends to the rear surface from front surface 106 extensions of extension.The another consideration factor helps to make front surface to keep straight relatively when the rear surface flange pivots, be rear surface 108 wall thickness a little be thinner than front surface 106.This effect also can promote with additive method, connect on 113 wall thickness with outer pillar 110 junctions such as reducing rear surface 108 at flexible flange, thereby the area that weakening is right after makes flange joint 113 easier pivots.

Figure 15 (b) is in case illustrate the extension and after dry wall panel 1600 installed, rear surface flange 112 kept in abutting connection with dry wall panel 1600, as shown in figure 16.

The optimum efficiency that uses this device is to use the inner surface space 114 of the securing elongated part of cementing agent on dry wall.Find that two kinds of cementing agents that are fit to use are the OSI sealant of Ohio Mentor company, the ITW foam seal of production code member PL Premium and Michigan State Oxford company, production code member F2100A.Should be appreciated that these specific cementing agents of disclosure do not limit the present invention and only use these cementing agents not get rid of other suitable cementing agent that uses with this device of use yet.

The extension that Figure 16 illustrates exterior window trim is how with 5/8 " panel 1600 installs.Can be parallel with the framework surface that plate 1700 keeps device and dry wall panel 1600 and dry wall panel 1600 to fix.Plate 1700 is fixed on the rear surface 108 of extension.Other fastening means of exterior window trim and dry wall panel 1600 usefulness nails 1702 or some is fixed on the framework surface.When nail 1702 is squeezed into the framework surface, rear surface flange 112 is sandwiched between framework surface and the dry wall panel 1600.So, this exterior window trim can use on the dry wall panel thicker than the thickness of device.

Exterior window trim of the present invention can be retrofited with several different methods.At first, exterior window trim can be made with the material beyond solid material or the plastics.The second, the dry wall corner is modified 90 ° of bendings that device component can be pushed to be become in the middle of both wings, and the connection between the two is a rigidity.Not only will save the device bending step between extruding and corner cut step like this, store and transport means before other post/crosspiece partly links together when device is smooth also easilier.The 3rd, if wish exterior window trim additional insulating properties are arranged, before connecting, each several part between pillar, places insulation materials.The 4th, the forward and backward surface of each extension outside (be close to the outside and do not have reinforcement) can foreclose.The 5th, the connection of each other post/crosspiece part can be with being different from connection that the inclined-plane engages or with the fusion or the method for welding.The 6th, the extension of each other post/crosspiece can be ° last with the single face structure, and other post/crosspiece part can be different from 90 ° angle and connect, and uses difform window frame so that allow.

Claims

1. A window casing device forming the inner surface of a window frame and surrounding an inner wall surface, comprising two extensions, a wall extension and a jamb/transom extension, joined at a junction extending along a longitudinal axis, The wall extension has front and rear surfaces separated by a reinforcement structure, the exterior of the front and rear surfaces of the wall extension is free of the reinforcement structure, and wherein the exterior of the rear surface forms a longitudinal hinge with the adjacent reinforcement structure such that the rear surface The exterior can pivot back to accept panels of varying thickness.

2. The window covering device according to claim 1, wherein said jamb/transom extension has front and rear surfaces separated by a reinforcing structure, and the rear surface of said jamb/transom extension is also Has an exterior that forms a longitudinal hinge with an adjacent stiffening structure.

3. The sheathing device of claim 2, wherein the outer portions of the front and rear surfaces of the jamb/rail extension are free of reinforcing structures.

4. The window covering device according to claim 1, characterized in that, the connection is a flexible connection.

5. The sheathing device of claim 1, wherein the wall and jamb/transom extensions extend from each other at an angle of 90° from the junction.

6. The sheathing device of claim 2, wherein neither the wall nor the outer portion of the front surface of the jamb/transom extension extends beyond the reinforcing structure.

7. The sheathing device of claim 2, wherein neither the wall nor the exterior of the front surface of the jamb/rail extension extend beyond the reinforcing structure.

8. The sheathing device of claim 2, wherein neither the wall nor the outer portion of the rear surface of the jamb/transom extension extends beyond the reinforcing structure.

9. The sheathing device of claim 2, wherein neither the wall nor the exterior of the rear surface of the jamb/rail extension extend beyond the reinforcing structure.

10. The sheathing device of claim 1, wherein none of the exteriors of the front and rear surfaces of the walls and jamb/transom extensions extend beyond the reinforcing structure.

11. A window casing for forming a finished window frame around a rough window frame, said casing comprising a plurality of parts, each part comprising two extensions, a wall extension and a jamb/transom extension, each extension has front and rear surfaces with inner and outer edges, the reinforcing structure extends between the front and rear surfaces of the wall extension, the inner edges of the two extensions at a junction extending along the longitudinal axis joints, said front and rear surfaces have exteriors without reinforcing structures, the parts are interconnected at their longitudinal ends such that the wall extensions of each of said parts all extend outward from said joints and are in the same plane, each The jamb/rail extensions of said members all extend rearwardly from said junctions thereof, each said jamb/rail extension being perpendicular to the wall extension.

12. The window casing according to claim 11, wherein the window casing comprises four jamb and crosspiece parts, each of which is connected to each other at right angles at its longitudinal ends to form a rectangular shape.

13. The window casing of claim 11, wherein the jamb/rail extension has front and rear surfaces, the front and rear surfaces have inner and outer edges, and the reinforcing structure extends between the front and rear surfaces between.

14. The window covering of claim 11, wherein the joint is flexible and the inner edges of the rear surface are spaced outwardly from the flexible joint.

15. The window covering of claim 13, wherein said front and rear surfaces of said extension portion converge outwardly from said joint.

16. The window covering of claim 13, wherein said reinforcement structure further comprises a plurality of struts extending between said front and rear surfaces of each extension.

17. The window covering of claim 16, wherein the space between said struts and said front and rear surfaces of each extension is filled with an insulating material.

18. The window covering of claim 13, wherein said outer portion of said rear surface of each extension provides a flange for securing said window covering to a frame.

19. The window covering of claim 13, wherein said front surface of each extension is covered with a primer or a laminate.

20. The window covering of claim 13, wherein said front surface of each extension is covered with a laminated sheet of extensible paper held in place by an adhesive which remains soft and in normal operation Conditions that do not offset the ductility of the paper laminate.

21. A window casing as claimed in claim 1 in combination with a panel located adjacent the rear surface of the extension so that when using a drywall panel thicker than the normal opening between the front and outside of the rear surface of the extension , allow drywall panels and window casings to remain parallel to the surface of the frame to which the drywall panels and window casings are secured.

22. The window casing of claim 13, wherein the inner surfaces of the exterior of the front and rear surfaces of the extension are secured with adhesive to a drywall panel used with the casing extension.

23. The window covering of claim 13, wherein the exterior of one or both of said front and rear surfaces of the extension is removed or excluded.

24. The window casing of claim 11, wherein the jamb/rail extension is cut or shortened to accommodate a jamb/rail that is shallower than the length of the jamb/rail extension.

25. The window casing of claim 13, wherein a length of drywall is inserted into the opening between the exterior of the front and rear surfaces of the jamb/transom extension to accommodate deeper than the jamb/transom A jamb/rail that extends the length of the section.

26. The window casing of claim 11, wherein the parts are connected to each other by bevel joints.

27. A window covering as claimed in claim 26, wherein the chamfered joints are fused or welded together.

28. A method of finishing a window frame having side jambs, a head rail and a bottom rail comprising the steps of:

Provides a window casing comprising two side jamb parts, a head transom part and a bottom transom part, each part comprising two extensions, a wall extension and a jamb/transom extension, each extension having a front and rear surfaces having inner and outer edges, a reinforcing structure extending between the respective front and rear surfaces of two extensions, the inner edges of the two extensions joined at a junction extending along the longitudinal axis, Said front and rear surfaces have exteriors without reinforcement structure, and each jamb/transom member is connected to each other at right angles at its longitudinal ends to form a rectangle, whereby the wall extensions of each said jamb and transom member extend entirely from its The joints extend outward and are in the same plane, and the side post/crosspiece extension parts of each side post and crosspiece parts all extend backward from the joints, and each side post/crosspiece extends partly perpendicular to each adjacent jamb/rail extension and wall extension;

Insert the window cover into the crude window frame;

Fasten the window casing and the inserted drywall panel to the surface of the frame;

Apply plaster or plaster substitute to the area where the window casing and drywall panel meet to create a smooth and straight surface between the fixture and the panel;

allowing the stucco or stucco substitute to dry; and

Apply paint or other surface coverings to installed window casings and drywall panels.

29. A method of finishing a window frame having side jambs, a head rail and a bottom rail comprising the steps of:

Provides a window casing comprising two side jamb parts, a head transom part and a bottom transom part, each part comprising two extensions, a wall extension and a jamb/transom extension, each extension having a front and rear surfaces having inner and outer edges, a reinforcing structure extending between the respective front and rear surfaces of two extensions, the inner edges of the two extensions joined at a junction extending along the longitudinal axis, The front and rear surfaces have exteriors without reinforcing structures that form longitudinal hinges with adjacent reinforcing structures so that the exteriors of the rear surfaces of each extension can pivot rearwardly to accept drywall panels of varying thickness, each The jamb/rail members are interconnected at their longitudinal ends at right angles to form a rectangle, whereby the wall extensions of each of said jamb and rail members all extend outwardly from said joints and are in the same plane as each The jamb/transom extensions of the jamb and transom components all extend rearwardly from their junctions, each of the jamb/transom extensions being perpendicular to each adjacent jab/transom extension and wall extension;

applying adhesive to the interior surface of the exterior of the front and rear surfaces of the wall extension;

insert drywall panels into the space between the front and rear faces of each wall extension;

insert spacers, if necessary, between the casing and the surface of the frame;

Insert the window cover into the crude window frame;

Fixing the casing and the inserted drywall panel to the frame surface by applying an adhesive between the casing and the frame surface;

allowing the stucco or stucco substitute to dry; and

30. The method of claim 28, wherein the exterior of one or both of the front and rear surfaces of the extension is removed and the window casing is inserted into the rough surface before the drywall panel is secured to the frame surface. window frame.

31. A method as claimed in claim 28, wherein the jamb/rail extension is cut or shortened before the window casing is inserted into the rough window frame to provide a Jamposts/Rungs.

32. The method of claim 28 wherein adhesive is applied to the inner surface of the jamb/transom extension and a length of drywall is inserted in front of and behind the jamb/transom extension The opening between the exterior of the surface to provide a jamb/rail deeper than the length of the jamb/rail extension.

33. The method of claim 32, wherein if the inserted drywall panel is thicker than the normal space between the exterior of the front and rear surfaces of the extension, in accommodating the thicker than normal space drywall panel A plate is placed adjacent to the rear surface of each airfoil so that the drywall panels and window casings remain parallel to the surface of the frame to which the drywall panels and window casings are secured.

34. The method of claim 28, wherein no stucco or a stucco substitute is applied.

35. Use drywall corner trim components to form window casings to form the inner surface of the window frame and surround the inner wall surface, including:

providing a plurality of components having a predetermined length between longitudinal ends, each component having a wall extension and a jamb/rail extension, each extension having front and rear surfaces having inner and outer edges, Reinforcing structure extending between front and rear surfaces of wall extensions, the inner edges of the two extensions joined at a junction extending along the longitudinal axis, said front and rear surfaces having exteriors without reinforcement structure, exteriors of the rear surface Forming a longitudinal hinge with the adjacent stiffening structure so that the outer portion of the rear face can be pivoted rearwardly to accept panels of varying thickness, the longitudinal ends of the parts being formed such that the parts can be joined together at the longitudinal ends to form said window where the wall extensions of each of said parts all extend outward from said junction and are in the same plane, and the jamb/rail extensions of each of said parts all extend rearward from said junction and are in a vertical at the plane of the wall extension; and

The parts are joined together at their longitudinal ends to form the window casing.