Abstract:
A curtain wall of a predetermined height includes prefabricated glassed panels, and a frame. The frame has only horizontal beams into which the glassed panels are placed for supporting the glassed panels without continuous vertical beams existing along the height of the curtain wall on a building with multiple floors.

Description:
FIELD OF THE INVENTION 
     The present invention involves the industrial production of a series of aluminum profiles for the construction of curtain walls with suspended glassed panels. 
     BACKGROUND OF THE INVENTION 
     The structure and shape of the frame of the curtain walls manufactured today in Greece and internationally are based on the traditional structure of the frame with a grid of vertical beams. The vertical beams extend across all the height of the curtain wall as continuous beams. Small horizontal beams transverse and are positioned between the vertical ones. The glassed panels are placed onto this grid in contact both with the vertical and the horizontal elements, and are supported by it. 
     This structure of the frame has several problems and weaknesses, mainly concerning thermal expansion, antiseismic properties, tightness, safety and operation of the windows, strength and durability of the sealing materials, the general construction cost, etc. 
     SUMMARY OF THE INVENTION 
     The above problems and weaknesses are addressed efficiently with the construction of curtain walls with suspended glassed panels, to which the present invention relates. 
     The objects of the present invention are basically obtained by a curtain wall of a predetermined height, comprising prefabricated glassed panels, and a frame having only horizontal beams into which the glassed panels are placed for supporting the glassed panels, without continuous vertical beams existing along the height of the curtain wall on a building with multiple floors. 
     With this invention, the elements of the glasses—glassed panels, prefabricated at the plant, are placed onto the frame of the curtain wall, and are suspended only from the horizontal beams of the frame along their whole length. The glassed panels do not touch the vertical beams. The vertical beams only support the horizontal beams onto the slabs of the floors of the building. 
     Other objects, advantages and salient features of the present invention will become apparent from the following detailed description, which, taken in conjunction with the annexed drawings, discloses preferred embodiments of the present invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Referring to the drawings which form a part of this disclosure: 
     FIG.1 is a partial, perspective view of a frame for a curtain wall attached to floor slabs of a building; 
     FIG. 2 is an enlarged, partial, perspective view of the frame of FIG. 1; 
     FIG. 3 is a partial perspective view of a building structure with glassed panels and the frame of FIG. 1; 
     FIGS. 4 A-C are end elevational views of alternative profiles for the cantilevers for the frame of FIG. 1; 
     FIG. 5 is a partial, enlarged, side elevational view in section of the frame of FIG. 1 with glassed panels, at the upper horizontal beam; 
     FIG. 6 is a partial, enlarged, side elevational view in section of the frame of FIG. 1 with glassed panels at the lower horizontal beam; 
     FIG. 7 is a partial, enlarged, side elevational view in section of a vertical beam and glassed panels according to the present invention; and 
     FIG. 8 is a partial, enlarged, top plan view in section at a corner of the curtain wall according to the present invention. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Each floor of the curtain wall has two horizontal beams parallel to each other and continuous, along the length of the structural facade of the floor. One horizontal beam  1 . 1 ,  2 . 1  is at the height of the base of the windows, the lower horizontal beam of the floor (FIGS.  1  and  2 ). The other horizontal beam  1 . 2 ,  2 . 2  is at the same height as the top of the windows, the upper horizontal beam of the floor (FIGS.  1  and  2 ). 
     These horizontal beams are supported on the ends of small cantilevers  1 . 3 ,  2 . 3  anchored on the slabs of the floors of the building. The cantilevers are fastened on the floor slab of the floor and have upwardly directed supports at their ends for the horizontal beam at the same height as the base of the windows, the lower horizontal beam of the floor. The cantilevers fastened to the roof slab of the floor also have downwardly directed supports at their ends for the horizontal beam at the same height as the top of the windows, the upper horizontal beam of the floor which constitutes the beam for the suspension and opening of the windows. The upper horizontal beam has special hooks along its whole length. The hooks correspond to the respective hooks of the upper side of the frames of the windows. 
     In case of continuity of the curtain wall to a lower or upper floor, the two cantilevers  1 . 3 ,  2 . 3  are unified as beams bilaterally protruding towards the continuous floors (FIGS.  1  and  2 ). However, in the case of unified glassed panel along the height of each floor, the support of the horizontal beams is directly fastened at the roof and floor slabs of the floor. 
     With the above support of the horizontal beams and the means of suspension and opening of the windows, continuity of vertical beams between the two horizontal beams of each floor does not exist. Hence, the construction of continuous windows along the length of the floor is easy and has a limited cost (FIG.  3 ). 
     The shape and the dimensions of the horizontal beams and cantilevers, the method of their connection and the fastening method depend on the materials of construction of the building and the dimensions of the slabs of the building. 
     Application of the present invention can constitute a series of aluminum profiles illustrated in FIGS. 4-7. FIGS. 4A-C illustrate profile forms of cantilevers, as in the embodiments of FIGS. 1 and 2. FIG. 5 illustrates the functional composition of the upper horizontal beam for the suspension of the windows in which cantilever  5 . 1  and upper horizontal beam  5 . 2  suspend the windows with hook  5 . 3 . The upper horizontal side of the window frame has the mutual hook  5 . 4  for the suspension of the windows. The lower horizontal side  5 . 5  of the frame supports fixed glass panels. 
     FIG. 6 illustrates the functional composition of the lower horizontal beam for the suspension of the fixed glass panels, and includes a cantilever  6 . 1 , a lower horizontal beam  6 . 2  for the suspension of fixed glass panels, an upper horizontal side  6 . 3  of the frame of fixed glassed panels and a lower horizontal side  6 . 4  of the window frame. 
     FIG. 7 illustrates the functional composition of the vertical beam, with vertical sides of the frames for the windows and fixed glass panels. 
     FIG. 8 illustrates the functional composition of a corner beam. 
     All the profiles, which constitute the panel of the glassed panels, bear special incisions for the attachment and support on them of aluminum blades made of special alloy compatible with the adherence requirements of the sealing materials. In this manner, a better quality and long lasting retention of the glasses onto the aluminum frames of the glassed panels, as illustrated in FIGS. 5-8, are provided. 
     While various embodiments have been chosen to illustrate the invention, it will be understood by those skilled in the art that various changes and modifications can be made therein without departing from the scope of the invention as defined in the amended claims.