Abstract:
A building closure for temporarily closing a bare opening in a wall in a building under construction or renovation. The building closure includes a closure frame made up of a number of bars and defining an opening mainly congruent with the wall opening, a plastic sheeting fastened on the closure frame and spanning its opening, and fastening members for fastening the closure frame to one side of the wall in an area around the wall opening. Each of the bars of the closure frame is V-shaped, has a first part mainly at right angles to the plane of the window and defining the closure frame opening, and a second part mainly at right angles to the first part and defining the periphery of the closure frame. The closure according to the invention can cover a bare wall opening in a building under construction or renovation in a less expensive, easier and tighter manner than known so far, with the two parts of the closure frame closing tightly maintained around the edge of the wall opening.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
         [0001]    This application is a continuation of International application PCT/DK00/00677 filed Dec. 7, 2000, the entire content of which is expressly incorporated herein by reference thereto.  
         BACKGROUND ART  
         [0002]    The invention relates to a closure for temporarily closing an opening in wall in e.g. a building under construction or renovation.  
           [0003]    During the construction or renovation of many buildings, there will normally be wall openings that temporarily are bare and that only later will be mounted with e.g. windows or doors.  
           [0004]    Traditionally, such bare wall openings are temporarily closed by means of wood laths that are joined together to form frames that each have an opening which is closed by an attached plastic sheeting.  
           [0005]    Such a frame of wood laths with attached plastic sheeting is not especially tight in itself, and usually it furthermore fits the respective wall opening badly so that a larger or smaller gap is left between the sides of this wall opening and the frame of wood laths.  
           [0006]    These gaps can be made tight with pointing which however is a labor-consuming and expensive operation which therefore often is skipped.  
           [0007]    The result is that the above traditional solution for, by means of wood laths temporarily, closing bare wall openings is not to a satisfactory extent able to meet the demands that are today made on the environment in a building under construction or renovation.  
           [0008]    The leaks can thus result in water damage to the building and the need for subsequent drying of damp-damaged sections in the building. There are furthermore, especially during the winter term, an expensive loss of heat and draught nuisances that can be health hazardous and cause increased sickness or work absences among the workers.  
           [0009]    Obviously, it is possible to close bare wall openings by means of conventional doors or windows and relating frames. In practice, however, it is not possible to make a rough wall opening with very close tolerances. Instead, the wall opening is made with an overmeasure that allows a conventional frame being inserted and mounted in the opening. Thus, a larger or smaller gap is formed between the frame and the wall opening, and this gap must necessarily be pointed with an appropriate filler if the wall opening is to be closed with the desired tightness.  
           [0010]    It is therefore an expensive and labor-consuming process to close a rough wall opening temporarily in the above conventional way. In the construction phase and at removal of the temporary closing, the applied doors or windows and relating frames will furthermore be very open to being damaged with consequent loss of materials.  
         SUMMARY OF THE INVENTION  
         [0011]    The invention provides a closure temporarily can close a bare wall opening in a building under construction or renovation in a less expensive, easier and tighter manner than hitherto known.  
           [0012]    This closure comprises a closure frame for detachable mounting in a wall opening, a first plate-shaped part made on the closure frame and extending, in the mounted state of this closure frame, in along the inside face of the wall opening at a distance from this wall opening, a second plate-shaped part made on the closure frame and, in the mounted state of this closure frame, extending outward along one side of the wall, at least one cover for mounting on the closure frame, and means for fastening the closure frame in the opening.  
           [0013]    When on the first part of the closure frame, at least one flap that is elastically bendable in a crosswise direction is located so that it extends along the exterior of the part and having, in unloaded state, a height greater than the gap between the exterior and inside faces of the wall opening, the closure according to the invention can be mounted in the wall opening quickly and easily. During this installation, the flap provides the necessary proofing of the gap between the frame and the rough wall opening without an extra contribution of labor and costs. At the same time, the flap advantageously centers the frame in the wall opening. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0014]    The invention will be explained in greater detail below, describing only exemplary embodiments with reference to the drawing, in which  
         [0015]    [0015]FIG. 1 is a front fractional view of a wall with an opening temporarily tightly closed by a closure according to the invention;  
         [0016]    [0016]FIG. 2 is a sectional view taken along the line II-II of FIG. 1;  
         [0017]    [0017]FIG. 3 is on a larger scale a fractional sectional view of a first embodiment of a closure according to the invention in free position;  
         [0018]    [0018]FIG. 4 is the same in mounted position on the wall in FIGS. 1 and 2;  
         [0019]    [0019]FIG. 5 is on a larger scale a fractional sectional view of a second embodiment of a closure according to the invention in free position;  
         [0020]    [0020]FIG. 6 is the same in mounted position on the wall in FIGS. 1 and 2;  
         [0021]    [0021]FIG. 7 is on a larger scale a fractional sectional view of a third embodiment of a closure according to the invention in free position;  
         [0022]    [0022]FIG. 8 is the same in mounted position of the wall in FIGS. 1 and 2;  
         [0023]    [0023]FIG. 9 is on a larger scale a fractional sectional view of a fourth embodiment of a closure according to the invention in free position;  
         [0024]    [0024]FIG. 10 is the same in mounted position on the wall in FIGS. 1 and 2;  
         [0025]    [0025]FIG. 11 is on a larger scale a fractional sectional view of the wall in FIGS. 1 and 2 with a fifth embodiment of a closure according to the invention in mounted position;  
         [0026]    [0026]FIG. 12 is the same seen from the inside face of the wall;  
         [0027]    [0027]FIG. 13 is on a larger scale a fractional sectional view of a sixth embodiment of a closure according to the invention in free position;  
         [0028]    [0028]FIG. 14 is the same in mounted position on the wall in FIGS. 1 and 2;  
         [0029]    [0029]FIG. 15 is a perspective view of the wall in FIGS. 1 and 2;  
         [0030]    [0030]FIG. 16 is a view of the wall in FIG. 15 but mounted with the closure in FIGS. 1 and 2;  
         [0031]    [0031]FIG. 17 is a view of the wall in FIG. 15 but with a face wall under construction on the exterior of the wall;  
         [0032]    [0032]FIG. 18 is a view of the wall in FIG. 17 but with the complete face wall ready for mounting of proper closure;  
         [0033]    [0033]FIG. 19 is on a larger scale a fractional sectional view of the wall in FIGS. 1 and 2 with a seventh embodiment of a closure according to the invention in mounted position;  
         [0034]    [0034]FIG. 20 is on a larger scale a fractional sectional view of the wall in FIGS. 1 and 2 with an eight embodiment of a closure according to the invention in mounted position;  
         [0035]    [0035]FIG. 21 is on a larger scale a fractional sectional view of the wall in FIGS. 1 and 2 with a ninth embodiment of a closure according to the invention in mounted position;  
         [0036]    [0036]FIG. 22 shows the closure according to the invention in a first mounting stage;  
         [0037]    [0037]FIG. 23 shows the closure according to the invention in a second mounting stage;  
         [0038]    [0038]FIG. 24 shows the closure according to the invention in a third mounting stage;  
         [0039]    [0039]FIG. 25 shows the closure according to the invention in a fourth mounting stage;  
         [0040]    [0040]FIG. 26 shows the closure according to the invention in a fifth mounting stage;  
         [0041]    [0041]FIG. 27 is on a larger scale a fractional sectional view of the wall in FIGS. 1 and 2 with a tenth embodiment of a closure according to the invention in mounted position; and  
         [0042]    [0042]FIG. 28 is on a larger scale a fractional sectional view of the wall in FIGS. 1 and 2 with an eleventh embodiment according to the invention in mounted position. 
     
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS  
       [0043]    In order to easily be able to insert the closure frame in the wall opening, the elastically bendable flap on the first part of the closure frame can be arranged to incline crosswise in the direction of the second part. Thereby, the inside face of the wall opening will automatically bend the flap down during the insertion operation whereby the flap generates a spring power which forces its free edge area into close contact with the inside face of the opening.  
         [0044]    The free edge area of the flap can furthermore be designed with a bend to ensure that the flap will not resist when the frame is pulled out of the wall opening at removal of the closure.  
         [0045]    The closure can for example be fastened in the wall opening by means of screws or similar fastening means.  
         [0046]    In an especially advantageous embodiment, the closure is however fastened by means of longitudinal barbs made on the inside face of the first part and in the mounted position of the window, forced in towards the inside face of the wall opening with the points facing obliquely out towards the side of the wall on which the closure is mounted. At mounting the closure is then quite simply pushed in place in the wall opening after which the barbs ensure the closure against unintentionally being pushed out of the opening due to e.g. the action of the wind.  
         [0047]    Alternatively, the first part can have a longitudinal catch which in the mounted position of the closure, is extending behind the back of the wall and thereby effectively secures the closure in the wall opening.  
         [0048]    In a second embodiment, the closure can be fastened in the wall opening by means of mounted straps/clips which are provided with barbs and drawn through openings in cross members resting against the other side of the wall.  
         [0049]    In a variant of this embodiment, the cross members can jointly consist of a support frame with mounted straps each having a fork with barbs that, in the mounted position of the closure, lockingly engage with a corresponding barb on the closure frame of the closure.  
         [0050]    The above mounting forms of the closure all have the advantage that the closure can be mounted in the wall opening quickly, easily and conveniently without during this having to use tools or other kinds of aids.  
         [0051]    The cover that fills the opening in the closure frame of the closure can advantageously be a flexible cloth which advantageously can consist of one or several layers of transparent plastic sheeting of e.g. polyethylene.  
         [0052]    Such a sheeting allows daylight to penetrate into the building so that the need for artificial lighting is eliminated or at least reduced for a large part of the year.  
         [0053]    The sheeting can furthermore be reinforced with filaments for giving the sheeting the necessary strength to be able to resist the often considerable wind and mechanical actions to which it is subjected in practice.  
         [0054]    The flexible cloth can be mounted on the closure frame quickly, securely and easily when the closure comprises a clamping frame consisting of a number of loose or joined rods and serving for fixing the cloth on the closure frame.  
         [0055]    In an advantageous embodiment the clamping frame—from a cross-sectional view—can be designed as a U while longitudinal grooves can be made in the closure frame for receiving the ends of the legs of the U which thus can squeeze the peripheral area of the flexible cloth together between the legs of the U and the grooves. This fixing can e.g. take place by means of screws.  
         [0056]    In a second advantageous embodiment the clamping frame can have a contact face and the closure frame a second contact face shaped complementarily for fastening a flexible cloth.  
         [0057]    In this embodiment the clamping frame can, as an example, be arranged to hold two flexible cloths at a mutual distance and fix both cloths between the two contact faces.  
         [0058]    For this purpose the closure can have a number of clamps arranged to be fastened on the closure frame and clamp the clamping frame in against the contact face of the closure frame.  
         [0059]    Each clamp can advantageously be designed as a chair with legs for being pressed in grooves shaped complementarily in the first part of the closure frame, a back for bearing against the clamping frame, and a seat for absorbing a pressure for pressing the legs of the chair in the grooves shaped complementarily in the first part of the closure frame.  
         [0060]    In the summer and under warmer skies a cover with only one cloth will be adequate. When it is cold, two cloths can advantageously be used for the cover, thereby saving considerable expenses for heating the respective building.  
         [0061]    In order to obtain great insulating power and a corresponding great cost saving the clamping frame must be arranged to keep the two flexible cloths at a good distance from each other. For this purpose the clamping frame can advantageously be made of a pipe which, with an economically small material consumption, can have a large diameter.  
         [0062]    The pipe can e.g. be round or rectangular. In the latter case, the contact face of the closure frame can include the inside face of a groove made in the closure frame, and the contact face of the pipe can consist of the outer side on a projection shaped complementarily of the rectangular pipe. By means of this solution, a considerable advantage is obtained in that the clamping frame and the closure frame reinforce each other, and that they therefore both can be made with a modest consumption of materials.  
         [0063]    With a view to prevent wind, rain and snow from penetrating in behind the closure, a gap with a sealing ring can be arranged between the second part of the closure and the side of the wall.  
         [0064]    On the first part of the closure can furthermore be made a handle for manually drawing the closure frame into the wall opening from the inside face of the wall. Then, the closure frame can be screwed into the wall opening.  
         [0065]    The above-mentioned flaps on the first plate-shaped part of the closure frame can in a simple embodiment be replaced by one or several lists of an elastically deformable material such as rubber.  
         [0066]    In a second embodiment the flaps can be individual elements consisting of e.g. plastic and mounted on the first plate-shaped part.  
         [0067]    [0067]FIGS. 1 and 2 are fractional views of a wall  1  with a quadrangular wall opening  2 . In the example shown it is assumed that the wall opening  2  is intended for a window in a building under construction, and that the construction has not yet come so far that the associated window has been mounted in the hollowed wall opening.  
         [0068]    In order to avoid heat loss until then, protect the incomplete building against the weather and provide an indoor climate suitable for drying the building, the wall opening  2  is tightly closed with a window  3  according the invention.  
         [0069]    This window mainly consists of a window frame  4  and a cover of a plastic sheeting  5  fastened on the window frame and spanning the opening  6  defined by the window frame.  
         [0070]    The window frame  4  is just as the wall opening  2  quadrangular and the opening  6  is congruent with the opening  2  of the wall.  
         [0071]    In this case the plastic sheeting is transparent so that the sheeting in the same way as the glass in a window allows daylight to penetrate into the building and thereby reduce or render superfluous artificial lighting for a large part of the year.  
         [0072]    The plastic sheeting is furthermore of the type that is flexible and that is reinforced with filaments  7  to give the sheeting the necessary strength to resist wind loads and mechanical actions to which the sheeting might be subjected during construction.  
         [0073]    The reinforcing filaments can e.g. be extending parallel to the sides of the opening or diagonally in relation to these sides. In the last case, the filaments will contribute considerably to increase the stability of the window frame.  
         [0074]    The sheeting can in itself be made of any kind of suitable plastic but is especially made of polyethylene.  
         [0075]    In this case the window frame consists of four V-shaped bars  8  abutting on each other and welded together in the corners  9  of the window frame. The bars can be made of any kind of suitable material, for example aluminium or steel, but consists especially of extruded plastic bars that advantageously can be made with a cross section suited for solving the proposed task by being able to close the bare wall opening in a satisfactorily tight way.  
         [0076]    The plastic that is used for making the bars can advantageously be polyethylene which, by means of relatively simple tools, can be melted together in the areas where the bars of the window frame are abutting on each other and are to be joined.  
         [0077]    The window  3  is located on the front  10  of the wall while the back  11  of the wall is free in this case. The window frame has a first part  12  extending in along the inside face  13  of the wall opening  2 , and a second part  14  extending along the front  10  of the wall  1 . By means of screws  15  or similar fastening means, the first part  12  of the window frame and thereby the window  3  is fastened on the inside face  13  of the wall opening.  
         [0078]    [0078]FIGS. 3 and 4 are on a larger scale fractional views in detail of how the window in FIGS. 1 and 2 is arranged and functions.  
         [0079]    As can be seen, the first part  12  of the window frame  4  is provided with two longitudinal sealing lips  16  and a longitudinal, rigid rib  17  on the inside of the V that the two parts  12  and  14  form with each other. The sealing lips  16  are a little higher than the rib  17 .  
         [0080]    On the inside face of the second part  14  is made a longitudinal, oblique sealing lip  18  and the second part furthermore has a longitudinal cog  19  along the periphery.  
         [0081]    At mounting the window is guided in the direction indicated by the arrow from the free position in FIG. 3 to the mounted position in FIG. 4.  
         [0082]    During this the sealing lips  16  of the first part are bent elastically and will thereby effectively create a sealing with the inside face  13  of the wall opening  2 .  
         [0083]    The window is fastened by means of e.g. screws  15  put through the rigid rib  17  of the first part. When the screws are tightened, the rib  17  will hit the inside face  13  of the wall opening. Thereby, the sealing lips are secured against being bent so much that they are inflicted with permanent deformations and no longer effectively would be able to create a sealing with the inside face of the wall opening.  
         [0084]    The oblique sealing lip  18  on the second part  14  is creating a corresponding sealing with the face  10  of the wall while the cog  19  determines the distance to the face and is creating a jointless conclusion against the wall.  
         [0085]    [0085]FIGS. 5 and 6 show a second embodiment of a window frame for a window according to the invention. The window frame has a first part  20  and a second part  21 . At a distance from the outer side of the second part  21 , a longitudinal rib  22  is made on the first part  20 , said rib faces inwards in the opening  6  of the window frame.  
         [0086]    In this case, the glass pane of the window consists of a first plastic sheeting  23  fastened on the second part  21  and a second plastic sheeting  24  fastened on the rib  22 . The two plastic sheetings  23  and  24  together form an effective double pane unit that makes the window suitable for use during cold periods, for example during the winter term.  
         [0087]    On the first part  20  are made four longitudinal sealing lips  25  and on the second part  21  a longitudinal, oblique sealing lip  26  and a longitudinal cog  27 .  
         [0088]    At mounting the window is guided in the direction indicated by the arrow from the free position in FIG. 5 to the mounted position in FIG. 6 in which the window is moreover functioning in the same way as described with reference to FIGS. 3 and 4.  
         [0089]    [0089]FIGS. 7 and 8 show a third embodiment of a window frame for a window according to the invention. The window frame has a first part  28  and a second part  29 .  
         [0090]    Three longitudinal barbs  30  are made on the first part  28  and on the second part  29  a longitudinal, oblique sealing lip  31  and a longitudinal cog  32 .  
         [0091]    When the window is guided in the direction of the arrow from the free position in FIG. 7 to the mounted position in FIG. 8, the barbs  30  are bent while overcoming the spring power in the barbs and are thereby forced in towards the inside face  13  of the wall opening with the points facing in the opposite direction of the direction of insertion so that the barbs will keep the window frame and thereby the window fixed in the wall opening. At the same time, the barbs function as sealing lips.  
         [0092]    In mounted position, the window is moreover functioning in the same way as described with reference to FIGS. 3 and 4.  
         [0093]    The third embodiment of the window can be mounted quickly and easily by merely pushing the window into the respective wall opening. It is therefore suited for closing especially smaller openings and in the cases where the window is kept clear of larger loads.  
         [0094]    [0094]FIGS. 9 and 10 show a fourth embodiment of a window according to the invention. This window corresponds mainly to the window in FIGS. 5 and 6, and like components are thus similarly referenced.  
         [0095]    In this case the first part  20  of the window frame however has an extension  33  ending in a longitudinal catch  34  facing in the same direction as the second part  21 , that is outwards in the window frame.  
         [0096]    When the window is guided in the direction of the arrow from the free position in FIG. 9 to the mounted position in FIG. 10, the first part  20  is bent inwards in the wall opening while the longitudinal catch  34  is sliding along the inside face  13  of the wall opening until it has reached through the opening and elastically snaps in behind the back  11  of the wall where it is securely detaining the window against being pulled free of the opening again under the action of external forces, such as wind loads.  
         [0097]    In mounted position the window is moreover functioning in the same way as described with reference to FIGS. 5 and 6, it must however be noted that in this case screws are not needed to fasten the window in the wall opening.  
         [0098]    [0098]FIGS. 11 and 12 show a fifth embodiment of a window which in the main corresponds to the window in FIGS. 5 and 6. Like components are thus similarly referenced.  
         [0099]    In mounted position the window is moreover functioning in the same way as described with reference to FIGS. 5 and 6, it must however be noted that neither in this case are screws needed to fasten the window in the wall opening.  
         [0100]    Instead the window frame is effectively fastened by means of a number of straps  35  mounted on the window frame of the window and a number of associated cross members  36  on the back of the wall.  
         [0101]    In FIG. 11 is seen such a strap which, in the case shown, is shaped as a tension string  35  extending upwards from the window frame and provided with a number of barbs  37  having points pointing in the direction from the first side of the wall to the second.  
         [0102]    The tension string  35  is, by means of a thread joint  38 , screwed into a nut  39  welded onto the upper corner between two window frame bars.  
         [0103]    [0103]FIG. 12 shows the back of the wall and as can be seen, the cross member  36  is placed across a corner between two of the adjacent sides  13  of the wall opening. In the cross member is a through hole  40  matching the tension string  35 . The hole is conic and tapers in the same direction as the barbs of the tension string.  
         [0104]    At mounting of the window the tension strings  35  are first screwed into the nuts  39  on the first part  20  of the window frame. Then, the window and the cross members  36  are guided in towards each other in the direction indicated by the arrow so that the tension strings are pushed through the conic holes  40  of the cross members until the cross members  36  are bearing against the back of the wall and the second part  21  of the window frame is bearing against the front of the wall.  
         [0105]    The window is now securely fastened in the wall opening, because the barbs  37  of each tension string will hit the peripheral area around the conic hole  40  on the back of the associated cross member  36  if the window and the cross members are subjected to stresses in the opposite direction of the arrows. Thereby, the window and the cross members are effectively kept in locking engagement with each other.  
         [0106]    [0106]FIGS. 13 and 14 show a sixth embodiment of a window that mainly corresponds to the window in FIGS. 5 and 6. Like components are thus similarly referenced.  
         [0107]    In mounted position the window is functioning in the same way as described with reference to FIGS. 5 and 6, it must however be noted that screws are not needed to fasten the window which instead is fastened in the wall opening by means of a separate support frame  41  resting against the back  11  of the wall.  
         [0108]    The support frame  41  has a first part  42  extending into the wall opening  2 , and a second part  43  extending along the back  11  of the wall  1 . On the first part is placed a number of forks  44  with two opposite rows of barbs  45 . Alternatively, the entire outermost end portion of the part can be forked.  
         [0109]    The first part  20  of the window frame has an extension  46  ending in a longitudinal barb  47  pointing in the direction from the front of the wall to the back.  
         [0110]    At mounting the window frame of the window and the support frame are guided in towards each other in the direction indicated by the arrow whereby the barb  47  on the first part  20  on the window frame of the window is pushed into the fork  44  of the support frame  41  until the second part  43  on the support frame is bearing against the back  11  of the wall and the second part  21  on the window frame of the window is bearing against front  10  of the wall in the ready-mounted position of the window.  
         [0111]    In this position the support frame and the window frame of the window are effectively keeping each other locked in the wall opening  2  by means of the engagement between the barb  47  on the first part  20  on the window frame of the window and the barbs  45  in the forks  44  on the first part  42  of the support frame.  
         [0112]    It is to be noted that the above mounting arrangement alternatively can be arranged in such a way that the forks, on the contrary, are placed on the first part of the window frame of the window and the first part of the support frame has an extension ending in a longitudinal barb.  
         [0113]    The embodiments shown in FIGS.  1 - 14  of the window according to the invention can easily be mounted from within the building, the respective window then being put mainly diagonally out through the wall opening, righted and pulled in towards the exterior of the wall after which the window is fastened in the ways described above and shown in the drawing. Thereby the need for having to use outside scaffolding or lifts is advantageously eliminated when the windows are to be mounted in the wall openings.  
         [0114]    The thus mounted window can be removed quickly and easily when the proper windows are to be mounted. In some case it would be expedient to leave the window in the wall opening as illustrated in FIGS.  15 - 18 .  
         [0115]    [0115]FIG. 15 shows the wall  1  in FIGS. 1 and 2. In this wall is made a wall opening  2  for later mounting of a window.  
         [0116]    In FIG. 16 the building window  3  in FIGS. 1 and 2 is mounted in the wall opening. In the main, the window consists of a window frame  4  and a transparent plastic sheeting  5  functioning as cover in the opening  6  of the window frame. The plastic sheeting is reinforced by filaments  7 .  
         [0117]    In FIG. 17 a face wall  48  is being built with an intermediate insulation  49  up around the wall opening  2  so that the window frame of the window is covered.  
         [0118]    In FIG. 18 the face wall is completed and it is now only necessary to cut away the plastic sheeting in order to be able to mount the proper window.  
         [0119]    In this case, the window was conveniently left in the wall opening in which it was mounted. In other cases it pays to remove the window and use it again at another place in the same or another building.  
         [0120]    In FIG. 19 is shown a seventh embodiment of a window according to the invention. The window has a window frame  50  with a first part  51  extending in along the inside face  13  of the wall opening at a distance from this face, and a second part  52  extending along the face  10  of the wall at a distance from this face. The window frame can consist of a number of loose or joined bars.  
         [0121]    Between the second part and the exterior of the wall is placed a sealing  53  for preventing wind, rain and snow from penetrating in behind the window. The sealing can be made of e.g. rubber, solid foam, or asphalt.  
         [0122]    On the outer side of the first part  51  of the window frame  50  is placed a longitudinal, elastic flap  54  which can be in one piece with the first part or be an individual flap mounted on the first part. The flap is inclining in the direction of the second part  52  and will therefore automatically bend when the window frame is guided into the wall opening  2 . Thereby, the flap is, with a free peripheral area, forced to bear tightly against the inside face  13  of the wall opening by means of the spring power generated in the flap at bending. At the same time the window frame is centred in the wall opening.  
         [0123]    A sealing  55  mounted on a projection  56  facing backwards on the first part  51  of the window frame serves to further ensure the sealing between the window and the inside face of the wall opening and especially in towards the room behind the window.  
         [0124]    As can be seen, the window frame  50  is screwed into the wall opening  2  by means of a number of assembly screws  57 .  
         [0125]    A flexible cloth  58  is fastened on the window frame by means of a clamping frame  59  which can consist of a number of loose of joined bars.  
         [0126]    In this case, the clamping frame  59  is shaped as a U with two legs  60  and a bottom  61 . In the window fame  50  are made a longitudinal grooves  62  for receiving the ends of the legs  60 .  
         [0127]    The cloth  58  is mounted on the window frame  50  by being squeezed into the grooves  62  by the ends on the legs  60  of the U, the clamping frame being fastened on the window frame by means of screws  63 .  
         [0128]    [0128]FIG. 20 shows an eight embodiment of a window according to the invention. The window has a window frame  64  with a first part  65  extending in along the inside face  13  of the wall opening  2  at a distance from this face, and a second part  66  extending along the face  10  of the wall at a distance from this face. The window frame can consist of a number of loose or joined bars.  
         [0129]    Just as in the seventh embodiment, a sealing  67  is placed between the second part and the face of the wall for preventing wind, rain, and snow from penetrating in behind the window.  
         [0130]    On the outer side of the first part  65  of the window frame  64  are made two longitudinal, elastic flaps  66  corresponding to the flap  54  of the seventh embodiment and functioning in the same way.  
         [0131]    Two flexible cloths  69  are fastened on the window frame  64  by means of a rectangular, piped clamping frame  70  which can consist of a number of loose or joined bars.  
         [0132]    On the clamping frame  70  is made a projection  71  and on the window frame  64  a second projection  72  having a groove  73  for receiving the projection  71  of the clamping frame. When the latter projection is engaging the groove  37  in the projection  72  of the window frame, the two frames  64  and  70  advantageously reinforce each other.  
         [0133]    The two cloths  69  are fastened, as shown, on the window frame by means of the clamping frame  70 .  
         [0134]    As shown, a peripheral area on each of the two cloths  69  is squeezed together between the inside face of the groove  73  in the projection  72  of the window frame  64  and the projection  71  on the clamping frame  64 .  
         [0135]    The clamping frame is in itself fastened on the window frame by means of an adequate number of clamps  74  which in this case, each are shaped as a chair with two legs  75 , a back  76  and a seat  77 .  
         [0136]    In the first part  65  of the window frame are furthermore made two grooves  78  for, at mounting, receiving the free ends of the legs  75  of the chair. This mounting takes place by pushing on the seat  77  of the chair whereby the legs  75  are squeezed into the grooves  78  and the back  76  is made to rest against the clamping frame with an intermediate part of the inner cloth.  
         [0137]    To keep the legs  75  in the grooves  78 , their free ends are hook-shaped while the grooves  78  have a shape complementary to these ends.  
         [0138]    The clamps are made of an elastic material and are arranged to, in mounted position, affect the number of clamps with a spring power that is mainly effective in the direction towards the projection on the window frame.  
         [0139]    [0139]FIG. 21 shows a ninth embodiment  79  of a window according to the invention. This window mainly corresponds to the window  64  mentioned above and shown in FIG. 20. Like components are thus similarly referenced.  
         [0140]    In this case, the clamping frame however consists of a round pipe  80  while on the window frame  79  is made a corresponding, complementarily arc-shaped projection  81 .  
         [0141]    In this case, the free peripheral area  83  of the flaps  82  on the first part  65  of the window frame is, as shown, shaped with a bend allowing the window  79  to unobstructedly be drawn out of the wall opening  2  after use.  
         [0142]    On the first part  65  of the window frame is a handle  84  for use at mounting to manually draw the window frame into the wall opening from the inside of the wall. A corresponding handle  84  for the same purpose is on the in FIGS. 19 and 21 shown seventh and eight embodiment, respectively, of the window according to the invention.  
         [0143]    In the case of the window  79  in FIG. 21, mounting takes place as shown in FIGS.  22 - 26 .  
         [0144]    The window frame  79  consists of bars extruded of an appropriate material, for example aluminium, and preferably joined to an assembled frame in advance.  
         [0145]    [0145]FIG. 22 is a cross-sectional view of the window frame  79  with mounted sealing  67 .  
         [0146]    In FIG. 23, the window frame is drawn into the wall opening  2  by a pull in the handle  84 . During this, the sealing  67  is pressed tightly in against the face  10  of the wall and the flaps  82  have been bent and are now bearing closely against the inside of the wall opening with an edge area under the effect of the spring power in the bent flaps.  
         [0147]    In FIG. 24, the window frame is screwed into the wall opening  2  in this position by means of screws  57 .  
         [0148]    In FIG. 25, the clamping frame  80  is made to bear against the arc-shaped projection  81  on the window frame  79  with an intermediate peripheral area of the cloths  69 .  
         [0149]    In FIG. 26, the legs  75  of the chair  74  are pressed into the longitudinal grooves  78  in the first part  65  of the window frame by means of a pressing on the seat  77 . The back  76  of the chair is now fixing the clamp frame  80  towards the arc-shaped projection  81  of the window frame so that the cloths  69  are fastened in the window.  
         [0150]    In this way, the window opening has temporarily been windowed quickly, easily and tightly by means of an inexpensive window that easily can be removed after used merely by loosening the screws  57 .  
         [0151]    [0151]FIG. 27 shows a tenth embodiment of a window according to the invention.  
         [0152]    In this case, an elastic sealing lip  88  is mounted on the first part  86  of the window frame  85 , said lip is made of an elastic material such as plastic. The second part of the window frame is designated with the reference number  87 .  
         [0153]    The window furthermore comprises a clamping frame  89  consisting of a number of loose or joined pipes serving for fastening two flexible cloths  90  on the window frame by means of a number of clamps  91  which themselves are fastened in a groove  92  in the window frame.  
         [0154]    [0154]FIG. 28 shows an eleventh embodiment  93  of a window according to the invention. This embodiment corresponds to the one shown in FIG. 26 with the difference that a list  94  of an elastically compressible material, such as rubber, is used instead of an elastic sealing lip.  
         [0155]    The windows are sometimes reused. As wall openings in buildings often are not designed in standard sizes, it will, in many cases, however not pay to store, catalogue, and distribute the used windows.  
         [0156]    When the different components of the window are made of plastic, they can be disposed of as burnable refuse or be recycled for new productions.  
         [0157]    A window frame of aluminium can bring in a relatively high price as aluminium waste.  
         [0158]    The embodiments of the window according to the invention described above and shown in the drawing are only to be taken as examples, many other embodiments being possible within the scope of the invention.  
         [0159]    Thus, the above embodiments can advantageously be combined in different ways, the first part of the window frames for example being provided with both sealing lips and barbs at the same time.  
         [0160]    The number of sealing lips and barbs need not be the number shown and described either but can be any appropriate number.  
         [0161]    Correspondingly, the panes used in the windows need not be a flexible plastic sheeting either, they can be of any other kind of impermeable material in form of e.g. plastic, aluminium, or iron plates.  
         [0162]    The window according to the invention is not just well suited for temporarily closing a window opening in a building under construction, the window can just as well be used for temporarily closing any kind of opening, such as openings for doors, and openings in buildings that are to be renovated or that have been damaged by e.g. storm.  
         [0163]    Furthermore, the wall openings and windows need not be quadrangular either but can have any other kind of geometric shape.