ITBA20100029A1 - COUNTER FRAMES, INSERTED IN PREFABRICATED CONCRETE OR STEEL AND POLYURETHANE PANELS, OF INDUSTRIAL BUILDINGS OR RESIDENTIAL BUILDINGS, SUITABLE TO STAY SLIDING DOORS WITH DISAPPEARING DOORS - Google Patents

Description

Description of the Industrial Invention entitled: "Counterframes, inserted in prefabricated panels in concrete or steel and polyurethane, of industrial warehouses or residential buildings, suitable for housing the doors of retractable sliding doors",

The present invention relates to an innovative counterframe arrangement, made of prefabricated concrete or steel and polyurethane panels, intended for the construction of industrial or residential buildings, such as to allow the subsequent installation of sliding doors. The doors of the said doors, in the opening phase, disappear inside the subframe cavities, arranged on the prefabricated panel, eliminating the problems generated by the lateral and vertical technical dimensions of the classic commercial doors existing on the market today.

In the construction of industrial sheds or industrial buildings, the use of prefabricated concrete panels or insulated panels in steel and polyurethane is increasingly widespread. These panels, produced in the factory in standard sizes and types, are transported to the foot of the work and assembled with mechanical systems, in order to create the external envelope of the building, making the construction itself simpler, faster and cheaper.

External access gates of varying sizes and quantities are set up according to the use of the building. These gates are then closed by means of doors such as: roller shutters with springs or industrial shutters with single-sheet or insulated steel slats; overhead doors; sectional doors; folding doors with or without ground guide; sliding doors mounted on the inside or outside of the building.

All these types of closures are subject to installation problems as they have technical dimensions, in plan and section, horizontal and vertical, which must disappear beyond the free passage of the passage and make installation particularly difficult in the presence of wagons. - bridges, electrical, water, fire prevention systems, pillars, lowered or protruding beams, production systems, storage racks, etc., in the immediate vicinity.

Then there is the problem of the structures used for the roof: prefabricated concrete beams "U" or "Y", straight or arched type; presence of skylights or transparent sections; presence of sheet metal roofs or roofs made of insulated steel and polyurethane panels; presence of fixtures; slopes; high altitudes compared to the height of the opening; presence of cantilevered floors; etc. to make the design, construction and installation of the closures complex.

Often, to hide the technical dimensions, unsightly steel pillars or compensation veils are added adjacent to the prefabricated panels, which create an uneven frame with respect to the prefabricated structure of the passage.

Many economic resources are spent to hide and protect the doors of the doors in the open state, from damage caused by accidental collisions of vehicles in transit.

Finally, there is the problem of compliance with mandatory regulations in terms of mechanical safety, resistance to wind overload, permeability to air and water, thermal and acoustic insulation, safety in the event of maneuvering by means of an electromechanical actuator with "dead man" command. "or" automatic ".

All this makes it necessary to use a series of active or passive safety systems which, in any case, often leave residual risks for the end user and do not fully satisfy the need to operate the gate.

The purpose of the present invention is to create a counterframe system inserted in the prefabricated concrete or steel panels, used in the construction of industrial and residential buildings, such as to create an interspace in them that can allow the housing and the disappearance of doors of single or double entry sliding doors, similar to what already exists in the residential field for internal sliding doors.

The disadvantages present to date in the known art of outdoor closures in industrial and residential buildings are the following:

- Horizontal and vertical technical dimensions in plan and section present close to the lateral structures of the passage;

- Overall dimensions of guides, winding roller, doors, suspension elements, adjacent to the wall structures;

- Reduction of the net passage sizes in case of lack of lateral or vertical technical spaces;

- Installation of uprights and compensation veils close to the perimeter of the opening; - Difficulty of laying in case of presence of electrical, water, fire-fighting, overhead crane systems;

- Difficulty of installation in the event of the presence of pillars or beams close to the opening;

- Difficulty of installation in the case of non-load-bearing or rectilinear floors located at a considerable distance from the lintel of the passage;

- Poor resistance to burglary and resistance to wind overload;

- Poor characteristics of thermal and acoustic resistance and performance of permeability to air and water;

- Residual risks of hooking, shearing, conveying, crushing, uncontrolled unbalancing movements, present in the case of manual operation or by means of electromechanical actuators with "dead man" or "automatic" control;

- Risk of damage to the doors or guides placed adjacent to the building structures due to accidental impacts of vehicles in transit.

From the foregoing the disadvantages constituted by the known art for closing external passages in industrial or residential buildings are evident, above all due to the technical dimensions of said closures present close to the perimeter of the passage.

The main object of the present invention is to solve said limitations of the known art, introducing the concept of making the sliding doors disappear inside the counterframes arranged in the prefabricated panels.

This solution has never been tried before as it requires multidisciplinary knowledge and experience in the field of construction of prefabricated panels and in that of outdoor closures: two different product sectors in terms of culture, materials and construction technologies.

The present invention relates to a predisposition, made in the prefabricated panels 1 used in the construction of industrial or residential buildings, consisting of a parallelepiped-shaped counterframe 3 in which the leaves of the sliding door 5 disappear; by a predisposition made in the horizontal panel 4 constituting the lintel of the opening, composed of a profile 19 inserted in the lower part of said panel so as to create a sliding guide 18 for the bearings 20 integral with the doors of the door 5 by means of the pins 21 and by a guide 7 inserted in the floor 8 consisting of an inverted "Y" profile 16 and containment profiles 15. The box subassembly 3 is in turn composed of a series of corrugated sheets 9; from a tail profile 10; an upper cover profile 11, integral with the "U" profiles 12 mounted at the upper and lower ends of the ribbed sheets 9; by vertical "U" profiles 13 connected in the lower part by profile 14, placed in the front part. The lower part of said box subassembly 3 is closed by means of the floor guide 16 and the containment profiles 15 held together by the connecting brackets 17.

The characteristics of the invention will become more evident from the following description and from the attached drawings relating to some examples of non-limiting embodiments, in which:

Fig. 1 shows an axonometric view of a typical prefabricated panel in reinforced concrete or in steel and expanded polyurethane used in the construction of residential or industrial buildings;

Fig. 2 shows an axonometric view of the same panel 1 in which the presence of the steel counter frame 3 in the internal structure 2 has been highlighted;

Fig. 3 shows an external perspective view of the opening in which the two vertical prefabricated panels 1, the horizontal prefabricated panel 4 and the leaves of the sliding door 5 are visible in the closed position. Fig. 4 shows the same external perspective view of Fig. 3 but with the leaves of the door 5 in the open position.

Fig. 5 shows an external perspective view similar to Fig. 3 in which the concrete part of the prefabricated panels has been eliminated in order to highlight the presence of the counter frames 3.

Fig. 6 shows an external perspective view similar to Fig. 4 in which the concrete part of the prefabricated panels has been eliminated in order to highlight the presence of the counter frames 3.

Figs. 7 and 8 show an axonometric view of the arrangement made in the panels of the building as a whole, showing the counter frames 3, the upper guide 6 inserted in the lower part of the architrave panel 4, the guide 7 inserted in the floor 8.

Fig. 9 shows an exploded view of the counterframe subassembly 3, consisting of a series of corrugated sheets 9; from a tail profile 10; an upper cover profile 11, integral with the "U" profiles 12 mounted at the upper and lower ends of the ribbed sheets 9; by vertical "U" profiles 13 connected in the lower part by profile 14, placed in the front part. The lower part of said box subassembly 3 is closed by means of the floor guide 16 and the containment profiles 15 held together by the connecting brackets 17.

Figures 10 and 11 show perspective and front views, with enlargements of details of the counterframe 3. The profile 11 located in the upper part is highlighted; the vertical "U" profiles 13 and 14, placed in the front part; the inverted "Y" guide profile 16 and the containment profiles 15 placed in the lower part.

- Fig. 12 shows a sectional view of the prefabricated panel 1 in which the subframe 3 and the concrete or steel and polyurethane part 2 are highlighted, in a typical "blind" construction (ie with opening only on one side of the counterframe 3 ).

Fig. 13 shows a sectional view of the counterframe 3 of fig.12, where the main component elements are highlighted, namely: the corrugated sheets 9; the tail profile 10; the head "U" profiles 13.

Fig. 14 shows a sectional view of the prefabricated panel la in which the subframe 3 and the concrete or steel and polyurethane part 2 are highlighted, in a typical "through" construction (ie with opening on both sides of the counterframe 3) . - Fig. 15 shows a sectional view of the counterframe 3 of fig.14, where the main component elements are highlighted, namely: the corrugated sheets 9; the head "U" profiles 13 placed on both sides.

- Fig. 16 shows an exploded sectional view of the counter frame 3 of Fig. 13, where the main component elements are highlighted, namely: the corrugated sheets 9; the tail profile 10; the head "U" profiles 13.

- Figs. 17 and 18 show a perspective and front view of the architrave panel 4 with particular emphasis on the upper guide 6 made in the lower part 18a of said panel 4 through the presence of the profile 19.

Fig. 19 shows a typical sectional view of the sliding door 5 showing the upper profile 19 which acts as a guide to the bearings 20 integral with the pins 21 to the leaves of the sliding door 5; the lower sliding wheels 22 and the floor guide 16.

In particular, fig. 1 shows the typical shape of the prefabricated panel in concrete or with steel and polyurethane sheets, made by the main national and European manufacturers, for the construction of industrial and residential buildings. This panel is produced in variable dimensions in terms of width, height and thickness, depending on the intended use of the building. Fig. 2 shows the same panel in which the presence of the counterframe 3 and the cementitious part or the part composed of steel sheets and polyurethane 2 has been highlighted. This type of panels is particularly used in the construction of cold rooms or buildings with load-bearing steel structures. Figures 3 and 4 show the classic assembly situations where the vertical 1 and horizontal 4 prefabricated panels of the building are highlighted and the presence of the sliding door 5 in the closed (fig. 3) and open (fig. 4) positions ). Fig. 5 and 6 show the same situations as fig. 3 and 4 highlighting the presence of the counter frames 3 inside the panels 1 such as to allow the sliding and disappearance of the door leaves 5. Fig. 7 and 8 show axonometric views of the assembly of fig. 5 and 6 have been shown, showing, in addition to the counterframes 3, also the upper guide 6 and the floor guide 7 which allow the sliding of the door leaves 5. Fig. 8 shows shown is an exploded view of the counterframe 3 made up of a series of corrugated sheets 9 of variable size, easily available on the market; from a tail profile 10; an upper cover profile 11, integral with the "U" profiles 12 mounted at the upper and lower ends of the ribbed sheets 9; by vertical "U" profiles 13 connected in the lower part by profile 14, placed in the front part. The lower part of said box subassembly 3 is closed by means of the floor guide 16 and the containment profiles 15 held together by the connection brackets 17. All said elements are held together through welding or cold joining systems, in order to form the counterframe 3 inserted in the prefabricated panel 1. Figs. 10 and 11 show perspective and front views, with enlargements of details of the counterframe 3. The profile 11 located in the upper part which constitutes the upper sliding guide inside the counterframe 3 is highlighted ; the vertical "U" profiles 13 and 14, placed in the front part which constitute the reinforcing elements of the prefabricated panel 1 in the opening area of the interspace; the inverted "Y" guide profile 16 and the containment profiles 15 located in the lower part that allow the closing of the counterframe 3 and the sliding of the wheels 22 present in the lower part of the door leaves 5. In fig. 12 and 14 they have been shown are the typical sections of the prefabricated panel 1 arranged with the counter frame 3 in the construction situation "blind" or panel open only on one side, or "pass-through" or panel open on both sides. These two types of construction allow the realization of a sliding door with one leaf (sliding only to the right or left) or with two opposing leaves (symmetrical or not). Figures 13 and 14 show the sections of the counter frame 3 only in the "blind" and "through" construction situation. In both cases, the corrugated sheets 9 and the "U" reinforcement profiles present only on one side, in the case of fig.13 and on both sides, in the case of fig.15, are highlighted. Fig.16 shows an exploded sectional view of the typical counterframe 3 of fig.13, where the main component elements are highlighted, namely: the corrugated sheets 9; the tail profile 10; the head "U" profiles 13. Figures 17 and 18 show a perspective and front view of the architrave panel 4 with particular emphasis on the upper guide 6 made in the lower part 18a of said panel 4 through the presence of the profile 19. guide allows the sliding of the door leaves 5 together with the floor guide 16 through the bearings 19 and the wheels 22 as better highlighted in the details of fig.19.

Claims (7)

CLAIMS 1) Prefabricated panel (1) in concrete or steel and polyurethane sheets used in the construction of industrial or residential buildings, characterized by the fact that a subframe (3) is inserted inside it to house the leaves of a sliding door. 2) Counterframe (3) for sliding doors (5) characterized by the fact that its side walls are made of corrugated sheets (9) of varying sizes and quantities and have front (13) and rear (10) reinforcement profiles, with "U" shape joined by welding or cold joining elements. 3) Counterframe (3) according to claim 2 characterized by the fact that it has in the upper part an "omega" profile (11) integral with the "U" profiles (12) placed at the head of the corrugated sheets (9) such as to constitute the upper sliding guide of the bearings (20) integral with the leaf of the sliding door (5) through the pins (21). 4) Counterframe (3) according to claims 2 and 3 characterized by the fact that in the lower part it has an inverted "Y" profile (16) and containment profiles (15) joined by brackets (16) such as to constitute the sliding guide lower for the wheels (22) integral with the sliding door leaf (5). 5) Counterframe (3) according to the preceding claims characterized by the fact that it can be built in a first type (1) with a single lateral opening or in the typology (la) with two lateral openings, so as to allow the modularity of the counterframe (3 ) across multiple adjacent panels. 6) Horizontal prefabricated panel (4) in concrete or steel and polyurethane sheets used in the construction of industrial or residential buildings, constituting the lintel of the passage, characterized by the fact that a profile (19) is inserted in its lower part 18a such as to constitute the upper sliding guide of the bearings (20) integral with the leaf of the sliding door (5) through the pins (21). 7) Counterframe (3) for sliding doors (5), according to the preceding claims, characterized in that the elements that compose it and the materials that constitute it, indicated in the preferred solutions of the present invention, can very well be replaced over time with other equivalents . ) Counter frame (3) for sliding doors (5), according to the preceding claims and according to what is described and illustrated in the attached drawings.