System of metal security door and window sliding sheets

This invention is referred to a system of metal security door and window sliding sheets made by trellis, or panel, or profile or a combination, that function and moved inside the masonry and the gap of the doors and windows in order to prevent their violation.

With the definition door and window we do not only mean the manufacture of a door or a window that cover some particular and predetermined gap for safety reasons, ventilation, brightness and functionalism of gap, but also the gap that is created for these reasons in a part of the masonry.

For the safety of the doors and windows several methods are used in order to protect the gap we want. For the gates, there are safety locks that secure at a fixed point the door with its case (window / door frame), and safety locks of many points that are used mainly in shielded doors, so that they secure in more than 2 points to the case. For the plain doors (French windows) and the windows, the safety comes from a doorknob, that secures simultaneously in two or more points of the corresponding sheet or of the steady case, with plain levers, that secure on the case, in wooden or metal folding or even single sheets with blinds, various types and applications window shakes, such as plastic, metal or even wooden, and finally rudimentary security is provided with glass sheets that are found in the interior of the door or window. The doors and the windows secure also with alarms that function via source of energy.

The violation of a door or window by means that can be obtained nowadays is not particularly difficult, as long as the speed of actions and the quiet entry from the door or the window is ensured. Proportionally to the manufacture and safety provided, the time of violation is limited, considering also the noise that will be caused by this effort. The doors with one point of locking provide rudimentary safety to the door which is easily forced either with some pass key, jemmy or even screwdriver. The shielded doors secure in a lot of points and certainly, their manufacture itself, provides great enough safety. However even though a lot of times they prevent the violation of a door they do not ensure it, because they always depend from a key, which with difficulty or not, can be copied, while in very limited cases and proportionally to the manufacture, it can be violated by piercing the functional parts with a sickle. The alarms provide the most important safety and they present the advantage to signal for the violation of the door or the window, however they undergo the disadvantage of being dependent from the energy source, which can for various reasons be interrupted or interfused. They usually function with frequency that can be located, while in every case it is likely to bypass them or deactivate them. The windows and plain doors are forced more easily compared to a gate. They do not have in their majority security locks, they open relatively easy with simple means (jemmies or screwdrivers),

whiie if they do not have alarm, the only rudimentary safety that they provide are the internal glass sheets, that also with a certain extra effort are passed, either with diamond or with jemmy and screwdriver.

According to the materialization of the invention the system of metal security doors and windows sliding sheets functions, it secures and is presented when the particular place is to be secured. The sheets do no remain permanently in front of the door or the window, but they are situated either in a side of the masonry when are single sheets, or in the one, or even on both sides of the masonry proportionally to the gap that exists, when they are divided. They are sliding and they secure from either the internal or even the external side of the area. When the gap of the doors and windows is secured, part of the sheets that secure them, remain inside the masonry from both sides, so that they do not open but only slide. They mainly have application in new manufactures of sliding, opening or even equitant sheets. They are able however to be adapted in existing manufactures of door and window sheets with certain preconditions, such as the essential gap in the one or two sides of the masonry, and mainly with the addition of a new driver.

The materials of the sliding metal sheets are from solid iron, or steel for the trellis, and aluminium, plastic or wood for the panel, or the profiles, or even a combination of the above. The metal balustrade if the are not obvious, they remain as the main material of the sheets, and they are found in the internal of the panel or of the profiles. The balustrades are constituted by door pillars and embroidered or partial horizontal metal pieces, that are connected with the pillars and maintain distance between them. For aesthetic reasons they can contain wrought pieces, with decorative for balustrades, or small sheets, in every desirable design and colour that will be selected. Also it is possible to invested them with plastic or aluminium panel, or other metal of various designs and colours, from cast aluminium, metal, plastic or wooden profile, or aluminium profile, or from mixed metal, or carved pressing, or traditionally pressing, or traditional with exterior balustrade, which already pre-exists from the combination. Decorated by choice with glass or stained glass with various designs and colours. When it is chosen to use only the panel or only the profile, it again has the characteristics that were mentioned before with less however safety concerning the combination with balustrades. The placement of single of sliding metal sheets in entry doors is able to take place in or outside of them with the secure choice being the sheets to be in the inside. In French windows or windows, the sheets are placed by the exterior side of the area, after the interior glass sheets or the window screens if they exist, and before the exterior sheets (window shakes, blinds), which are not essential to be placed, because for safety reasons they are replaced by the sliding metal sheets. When the doors or the windows are sliding and marbles are used in each side of masonry, these are entered with the usual way, leaving gap in order for the metal sheets, and the door or windows sheets to enter inside it. In case where they is opening or equitant, provided that again is placed marble in each side of the masonry, this should be separated in two parallel parts

so that it leaves the necessary gap. In the new class of doors and windows that stable case has the corresponding thickness of the masonry, the application of the sliding metal sheets, can take place with two independent pieces that will provide the gap needed. The choice of placement of sheets only with balustrades, presupposes the higher density. of vertical departments and in points that are found near in the masonry, so that a hand does not pass that with certain requirements could insecure the dowels. The height that the single sliding metal sheets that cover the gap of door or window will have, depends: from the length of the gap that is created between the above and beneath driver, or the above driver and the flooring, when a beneath driver does not exist. When the single sliding metal sheet will enter from the predetermined above and beneath driver, it enters the above driver and additional driver applies to the already existing, so that the metal sheet will slide with safety. The length that the particular sliding metal sheet will have depends: from the length of gap that the door or the window has, the width of gap that is left in each side of the masonry in order for the metal sheet to pass, the thickness of the masonry so that it has the smaller possible corner when entering the gap of the masonry, the point that 20 will exist the gap in the thickness of masonry, meaning that if in its centre or to its end, and finally, it depends on the thickness that the actual sliding metal sheet itself will have. In every case the single and divided sliding metal sheets, when they secure and cover the gap of the door or window, part of them, which is at least 5 cm, in each side of the masonry remains in the gap that the driver is found and the sheet, or the sheets moves. The thickness that they the metal sheets have is proportional of the type that will be used in order to secure the door or the window, and that as mentioned before it is: Metal balustrade, metal, plastic or wooden profile, the metal or plastic panel and finally the combination of these.

They function and they move with rollers on the driver of the system, or in part of the driver that the sliding metal use, plastic or even wooden sheets of doors and windows, when the main functioning driver is selected to be on the bottom part of the gap. When the main driver is placed above (lintel), and is a sliding one, it supports and leads the metal sheets, giving the possibility to the corresponding driver beneath (threshold) not to exist, but the sheets to be directed from 2 pairs of adjustable auxiliary drivers of cylindrical shape, which are plastic, are found fixed in the part beneath the finishing of the masonry and in the internal part of the masonry, so that they are not distinguished. In the single sliding metal sheets, and mainly these that will be placed in door gates, the driver is able not to be obvious, but it is found inside the stable upper case. When the main driver finds itself under, it supports and leads all the construction with rollers, while the upper driver is additional (not sliding), which hooks above on to the main driver. The driver or a part of it from a set of drivers, is placed between the shakes or the exterior windows sheets and simple doors (if they exist) and inside the internal glass sheets. When there is a window screen, it is placed between the internal sheets and the sliding metal sheets of the system. The divided sliding metal sheets when they are inactive, they stabilize with regulating stable driver that are found inside the gap of the masonry, while when

they abut in order to secure, they are stabilised with obvious metal regulating stabilizer of divided sheets that are placed at the sheets connection, and above the driver. In the single sliding metal sheets, the regulating stabilizers of the driver, are placed at the end of the small gap of the masonry and in the end of its opposite gap, so that they are stabilised at the point that they will secure the gap, and in a position that they will remain inactive inside the gap of the masonry. When the system with the sliding metal sheets secures from the inside, it is done with dowels, that are found in the internal part of the masonry, and in a small distance from its finishing to the door or window gap. The height that they are placed varies, and is done by choice, while the dowels secure also with a lock so that they do not come out. The dowels function as a lock in the attempt of the metal sheets to be drawn, so that a gap will appear in the door or the window. They secure in specific points of the metal sheets of the system, these points are found in the parts of the sheets that remain in the gap of the masonry, when these secure. The dowels pass, either in the finishing of the sheets so that they create a lock with the masonry, or from holes in concrete points of the sheet. The dowels are able to also enter in a part of her exterior side of the masonry, without penetrating it. They are situated by choice and they penetrate the stable door or window case, which is divided in two parallel parts for the existence of essential gap, where the safety of the dowel takes place in the corresponding parallel part of the stable case. The single sliding metal sheets secure, either with one main dowel, that is found in the side of the masonry where the metal sheet is imported when it is inactive, or with a secondary dowel, that is placed in the other side of the masonry, while the divided sliding metal sheets secure with two dowels, one in each side of the masonry. On the binding of the sheets that are divided safety dowels are placed between the sheets, the lock, the padlock or the bar. On the divided parts with 3 or even more sliding metal sheets, hinges are placed, so that they become folding, the dowels remain in each side of the masonry, while the sheets between them secure with locks, metal bars or even padlocks. In this case the sliding metal sheets that are divided in more than 2 parts, it is advised to be a combination of balustrades with profile or panel, so as to be difficult to find the precise points of placement of the dowels, locks, bars and padlocks. A completed protection of the area is provided, when part of the system or even all of it, secures from the outside or in combination to that. Particularly, a selection can be made for all the gaps of doors and windows to be secured from the inside of the vacancy and for the gap of the entrance door to be secured from the outer side of the vacancy. This can be achieved by placing the single sliding metal sheet through the entrance door, adapting to it a motor with a movement system or a dowel with lever from an electromagnet that has been placed in the gap of the masonry and takes energy from the electric supply that the vacancy has or even in combination to a battery, while they are activated through an appliance with wireless frequency or by access control from the exterior side of the vacancy. With this way if the door entrance of the gate is violated with a pass key it will not open so as to leave gap and for the are to be breached, because from the back side the sliding metal sheet or sheets is/are situated. The operation/existence of the appliance with

wireless frequency does not become easily perceptible because it does not make noise as the siren of the alarm, neither has indicating lamp. The system can be placement inside a frame, including pieces by choice from the system, internally glass sheets of door or window and the window screen, and before the masonry of the vacancy and of the door or window gap is completed. In every case, when the sliding metal sheets will secure the gap they protect, they will not move right-left.

The system of metal security door and window sliding sheets presents certain important advantages in concern to the exist systems of safety in this sector. It does not open the system, as most doors and windows do, but it slides, and secures in predetermined and selective points with dowels that are found inside the existing masonry, or of the stable case, and that they penetrate it in particular points, so that a lock is created in the attempt that will take place in order for the sliding metal sheets to open. The whole system with either single, or dividing sliding metal sheets, does not only cover the gap that must be secured, but also the part that remains inside the masonry, from both sides, so that it can not be pulled toward the outside or the inside of the gap, because a lock is created by the existing sides of the masonry, while they appear only when the particular gap is secured. The violation of the system is impossible, because nor the use of jemmy of any other tool is able to deactivate it. Only with means and demolition material the system can be violated, that when something like that is attempted it causes loud noise that during hours of rest it becomes much more loud and acute. The prevention that is provided for would-be robbers that are acting unnoticed and unperturbed during the night hours, is also an important feature, when the tenants of the vacancy are asleep, and after having breached all the security systems, they are unable to enter, because the safety of the vacancy is from the inside, without locks and alarms, with simple dowels, bars and padlocks of the system that are unclear where to be found. In this way the bodily integrity of the tenants of the vacancy is also ensured. Furthermore, the probabilities of violation of the vacancy are annihilated even when the vacancy is not occupied, when the safety of all doors and windows gaps or part of them is done with the use of the wireless frequency or by access control, that is activates the motor or or a dowel with lever from an electromagnet that secures and unlocks the particular of doors or even windows gaps. The sliding metal sheets can become tasteful with shapes, designs, colours as well as with various traceries, when the balustrades are not combined with panel or profile, and with carved, traditional, with grass, stained glass, balustrades or even a combination of these when a panel or a profile are used. The preferred materialization of the invention is for the sliding metal sheets to be one, covering with a single sliding metal sheet all the gap that must be secured and it should include balustrades with investment or not. However because weakness of satisfactory area, the gap of the door or window is able to be covered with 2 or more sliding or even folding metal sheets on one, or even both sides of the masonry.

The present invention is described analytically and comprehensively according to

the attached drawings in which:

Figure 1 shows the ground plan, the order and layout of the total of the sliding single sheets that apply in doors (18,19) or window gaps (20) of the masonry (10), the gap of the masonry (11), the small safety gap in it (12), that is required so as the sheets will only slide. Inside the vacancy is the internal glass door or window sheet (26, 27), the screen (28), and the single sliding metal sheet (29) that is distinguished only with solid balustrades (36) that contain pillars (41) and horizontal metal pieces (42). Optionally the door or window shakes (24, 25), are placed after the single sliding metal sheet (29). Following that, the bottom driver appears, which is multiple (56), because it include all the sheets that move in the door (18, 19) or window gap (20). The adjustable stables of the driver (61) are found inside the small gap of the masonry (12) and inside the its opposite gap (11), they are placed above the driver (53) so that they stabilize the single metal sheet (29) or the series of the sheets in order to secure. Also main dowel appears (63) that is found inactive in its position, the big socket of the dowel (65), and its small socket (66) that leads to the exterior part of the masonry (10) without penetrating it. The main dowel (63) is in-built in the big socket (65), it functions and it secures with a lock (72), which is found on and in the front part. The dowel lock (72) functions with a key (73), that when turning it clockwise, partially, it produces the main dowel (63) and guides it to pass indicatively through the existing hole (51) on the sliding metal sheet (29) and at a predetermined point, so that it will settle in the small socket (66). By turning the key of the dowel counter-clockwise (73), the main dowel comes back partially (63) in its initial place, so that it unlocks the sliding metal sheet (29).

In figure 2 is presented in ground plan, the security position of a single sliding metal sheet (29) in the gap of an entrance door (18). The entrance door (21) that is distinguished open, is supported by a stable case (67) and is found through the single metal sliding sheet (29) which is stabilized by a regulating stabilizer (61) that is found inside the small gap of the masonry (12), while equivalent adjustable stabilizer (61) is at the end of the opposite gap (11) of the masonry, which stabilizes the single sliding metal sheet (29) when inactive. In the gap of the masonry (11) and in the small gap of the masonry (12), you can distinguish the front and back pair of the regulating auxiliary drivers of the masonry (59, 60), the autonomous driver (55) which is also the main driver (52), placed inside and over the masonry gap (11), as well as the total set (10). The single sliding metal sheet (29) is a combination of metal balustrades and panel (39), is distinguished by choice the above embroidered piece (43) with the pillars (41) that surrounds the set of the solid metal balustrade with the panel (39), which (39) covers the whole of the balustrade. The main dowel (63) also appears in an active position which is placed optionally, while it functions by choice, on the fixed case pf the door (67), penetrating the single sliding metal sheet (29) at a specific point (51) while the big socket of the dowel (65) the embodied dowel lock (72), and its key (73) can be detected. The sliding metal sheet (29), secures from the outer side of the vacancy by a dowel with levered from an

electromagnet (87) which is activated by access control (88).

In figure 3 you can distinguish in the ground plan the way of single sliding metal sheet enters (29), in the gap of the masonry (11) and in its small gap (12). The length (32) of the particular single sliding metal sheet (29) depends on: the length of gap that the door (16) or the window has (17), the width of the gap (14) that is left in each side of the masonry (10) in order for the single sliding metal sheet to pass (29), the width of the masonry (13) so that the single sliding metal sheet will have the smaller possible corner (29) when it enters in the gap of the masonry (11 or 12), the point at which the gap will be on the width of the masonry (15), and finally it depends from the width (34) that the single sliding metal sheet will have itself (29). After the single sliding metal sheet (29) enters the masonry gaps(11 ,12) inside its small gap (12), is placed the adjustable stable of the driver (61), front and the back pair of the regulating auxiliary drivers of the masonry (59, 60), while the main sliding driver above (52), had already been placed inside the gap of the masonry (11,12) with the corresponding adjustable stable driver (61). Finally main dowel is placed (63) with its big and small socket (65, 66) for the safety of the single sliding metal sheet (29).

In the figures 4 and 5, it is shown in a side view and cross section respectively, the position that the single sliding metal sheet is situated (29), and the place that the additional driver enters above (54), by hooking on to the main driver (53) when the sheet enters (29) inside the masonry gaps (11, 12). Also you can see, the masonry (10), the distance (57) between the additional driver (54) to the main driver (53) that was placed beneath, the distance of the main sliding overhead driver (52) to the floor (58), if a driver beneath does not exist (53), the rollers (78), for the movement of sliding metal sheet (29), the front and back pair of the adjustable auxiliary drivers (59, 60) again when a main driver does not exist beneath (53), and the adjustable stables of the driver inside the gaps of the masonry (61). Additionally you can distinguish, the height of the sliding metal sheet (33), its total length (32), the lengths of its remaining - covered departments in the gap (35), the indicative point that the hole is found on the metal sliding sheet (51) and is penetrated by the main dowel (63), its sockets (65, 66), and finally the indicating position of the dowel's lock (72) with the key (73), where indicating from the above, gap of the window is protected (20).

The figure 6, shows in ground plan, dividing sliding metal sheets (30) which are placed at an internal opening glass sheets door (26) or window (27) system, and at an external opening door (22) or window (23) sheets. You can see the gap (11) in both sides of the masonry (10), the main driver (53), where the divided sliding metal sheets move (30), the adjustable fixed of the driver (61), that are found inside the gap of each side of the masonry (11) and on their end, the obvious adjustable fixed of the divided metal sheets (62), which is placed in the middle of the additional (54) or of the main driver (53) above. Also you can distinguish, the main dowel (63) that indicatively has been placed behind the one dividing sliding metal sheet (30) and has secured it, the secondary dowel (64), its big sockets (65) and its small sockets

(66), and finally the divided sliding metal sheets (30), where the one is presented indicatively with metal or plastic panel (37), while the other, from the panel with obvious balustrade (49). Additional safety is able to exists from an optional sheet lock with convex tongue (70), that fits with key (71), in the socket of (77) the opposite corresponding divided metal sheet (30).

In figure 7 are presented in side view, the divided sliding metal sheets (30), where part of them are folding (31), the place that the additional driver is set above (54), when the divided sliding metal sheets enter (30) inside the gap of the masonry (11), in at choice gap of window of (20) big opening. Visible is the main driver (53), placed above and under, the place that the additional driver enters (54), the distance that the two drivers have between them (57), the distance of the sliding upper driver to the floor (58), when there in no main driver below (53) and a main sliding driver has been placed above (52), also, the pair front (59) and behind (60) of regulating fixed drivers, when there is also no main driver below (53), the adjustable fixed driver (61) inside the gaps of the masonry (11), and visible adjustable fixed of the divided sheets (62) placed in the additional driver above (54), or with possibility of placement also in the main driver below (53). The rollers (78), are placed on the dividing sliding metal sheets (30) when a main sliding driver is not placed above (52). Also, the height of the sliding metal sheets (33) is distinguished, the lengths of remain- covered parts of the sheets in the gap (35), and indicative point behind the one divided metal sheet (30), that the main dowel is found (63) with its lock (72). In the opposite side where the secondary dowel (64) is found, a safety dowel button (79) has been placed, for its safety (64). The dividing sliding metal sheet (30) is from solid balustrades (36) and is connected with the folding metal sheet (31), with hinges (76), wherever in the folding metal sheet (31) have not been placed rollers (78), so that it moves freely apart from the drivers (52, 53, 54). On the folding metal sheet (31) have been placed security dowels between the sheets (85), who by passing from the sockets of the dowels into the sheet (86), they end up to the 2 sided divided metal sheets, so that biggest safety in the set of the sheets (30, 31) is provided. The divided sliding metal sheets (30) are secured one with the other or with the corresponding folding metal sheet (31), that is found in the opposite side, with a key for the sheet (71), that extracts from the lock a convex tongue (70), ending up in the socket (77), that is found on the opposite sheet (30, 31). Also in the masonry (10), u can use a similar method for the gaps of simple doors (19).

In figure 8 are shown in ground plan the folding and divided - sliding metal sheets (31, 30), placed in limited space of the masonry (10), in a interior glass door (26) or window (27) sheet system, and opening exterior door (22) or window (23) sheets. The gaps of the masonry (11) can be seen from both sides (10), the main driver (53) where the divided sliding metal sheets (30) move-function, the adjustable fixed driver (61), that is found in the end of each side of the masonry and inside the gap (11), the visible adjustable fixed of the divided sliding metal sheets (62), that is placed in a part of the main driver (53) or in a part of the additional driver above (54), and finally,

the main and the secondary dowel (63, 64), that indicatively have been placed so that they pass after the finishing of the endpoint divided sliding metal - sheets (30). They secure with the main and the secondary dowels (63, 64) via their big and small sockets (65, 66), with the locks (72) and the their keys (73), with locks of sheet with convex tongue (70), and moreover optionally when it concerns constructions with big openings or the conditions impose it, with bars of safety (68), applied-placed in suitable sockets for bars (69), or even padlocks (74), that pass from suitable rings (75). The folding metal sheets (31), are connected with hinges (76) to the divided sliding sheets (30), and must include in their manufacture solid metal balustrades (36) or a combination from metal balustrades metal panel or profile (39, 40), so that the additional metres of safety can be applied.

The Figure 9 shows in ground plan the way of safety and operation of the main and secondary dowels (63, 64) in the masonry (10), the place that they have in the gaps of the masonry (11,12), with their big and small sockets (65, 66), the locks that secure them (72), and their keys (73). Also visible is the extension of the dowel (63 or 64), when it is found in operation and secures in its small socket (66), passing from the particular hole of the sheet (51), or behind it (29, 30), and in an inactive position.

In Figure 10 is laid out in ground plan, the possibility of the sliding metal sheets system, being placed in its frame (82), and in connection to the created masonry. Indicatively are presented the following parts of the system which, secure from the internal and exterior side of the vacancy, the gap of the entry door (18): The entry door (21), that has been chosen to open for additional safety to the in side and was placed from the exterior side of the masonry (10), the fixed door case (67), that is incorporated in the system frame (82), the single sliding metal sheet (29), that is found in the security position with the operation - movement taking place via the main sliding driver (52) that is placed above (lintel), without having another driver below (threshold). Then, for the proper and secure sliding-control of the single sliding metal sheet (29) in the safety place, they appear being placed in the gap where the sheet (29) moves, two pairs of adjustable auxiliary drivers, front (59) and back (60) in connection to it (29), as well as the stabilisation of same sheet (29) with adjustable fixed of the driver (61). The movement of the single sliding metal sheet (29) is distinguished that it takes place by the mechanism of movement of the sheet (80), that part of it is found incorporated in the sheet (29), while the rest of it, such as the motor (83) and the accumulator (84), are fixed in the frame (82) of the system, and are activated with a wireless frequency appliance (81). The above mentioned choice secures the entrance door gap (18) from the outside of the vacancy. It only secures the single sliding metal sheet (29) with a dowel (63) that is found behind it (29) and which dowel (63) by choice, locks with pressure of a safety dowel button (79), when the safety of the vacancy is selected to become from the inside. After the placement of system with the into account frame (82), the masonry is filled, veneered and painted from the outside and the inside (10).

Terminology

Masonry Gap of Masonry Small Gap of Masonry Width of Masonry Width of Gap of Masonry Point of gap in the width of the Masonry Length of Gap of door Length of Gap of window Gap of the entrance door Gap of the simple door Gap of the window Entrance door Exterior sheet of door Exterior sheet of window Door shake Window shake Internal glass sheet of door Internal glass sheet of window Window screen Single sliding metal sheet Divided sliding metal sheet Folding metal sheet Length of single sliding metal sheet Height of sliding metal sheet Width sliding of metal sheet Length of Remaining-Covered part of the sheet in the gap Sliding Sheet from metal solid Balustrades Sliding sheet form metal or Plastic Panel Sliding Sheet from metal or Plastic Profile Combination of metal Balustrades with Panel Combination of metal Balustrades with Profile Balustrades Horizontal metal pieces Perforated metal pieces Wrought Decorative for balustrades Leaves Sheet Panel Carve Pressed Sheet Panel Traditional Pressed Sheet Panel with obvious Balustrade Sheet Panel with Panel or stained glass

Hole in the Sheet for Dowel Perforation Main sliding upper driver Main driver Additional upper driver Autonomous driver Multiple driver Distance between drivers Distance of upper driver to the floor Front pair of Adjustable auxiliary drivers Back pair of Adjustable auxiliary drivers Adjustable fixed driver inside the Masonry Obvious Adjustable fixed divided sheets Main dowel Secondary dowel Big Socket dowel Small Socket dowel Fixed door or window case Safety Bar Socket Safety Bar Lock of Sheet with convex tongue Key of the Sheet Lock dowel Key dowel Padlock Rings of the Padlock Hinges of Divided Sheets Socket of the convex tongue Rollers Button of safety dowel Mechanism of movement of the Sheet Appliance of wireless frequency System frame Motor of Movement of Sheet Accumulator Dowel of Safety between sheets Socket of the dowel in the Sheet Dowel with lever powered by an electromagnet Access Control