EP1873347A1

EP1873347A1 - Roller blind

Info

Publication number: EP1873347A1
Application number: EP06743401A
Authority: EP
Inventors: Agustin Auria Pérez; Eloysa Lansac Aquilué; Isabel Auria Lansac
Original assignee: Individual
Current assignee: AURIA PEREZ, AGUSTIN
Priority date: 2005-04-04
Filing date: 2006-03-13
Publication date: 2008-01-02
Also published as: EP1873347A4; WO2007000478A1

Abstract

ROLL-UP SHUTTER, which includes a unit (A), consisting of the box (1) of the shaft (4) of the shutter, bearings (5) and slats (6), which incorporates a connection (7) that fits into a connection (15) of an upper unit (B), which includes a box (9) of the shaft of the upper reel (10), bearings (11, 12) and the upper reel (13) with the belt (14) and is independent of the unit (A); and a lower unit (C) that includes a box (25) of the lower reel (26), its shaft, the brake (27) of the belt (14) which, together with the upper unit (B), are a unified element. In an invention execution alternative, the units (B) and (C) are rigidly joined, forming a functional assembly in which the length of the belt is already adjusted. The shutter is operated by a crank, which makes the lower reel (26) of the unit (C) turn by means of a gear, transmitting the force to the upper reel of the unit (B) by means of a cable that unrolls from one reel to roll up in the other, raising and lowering the slats according to the direction of rotation of the crank.

Description

FIELD OF THE INVENTION

This invention refers to a roll-up shutter that is easy to manufacture, install, maintain and replace.
As explained herein, the purpose is to facilitate the manufacture, installation, maintenance and replacement of roll-up shutters, whether manual or operated by an electric motor, through a modular construction system that permits industrial manufacture of the different modules and considerably simplifies the operations of assembly, installation, maintenance and replacement of the modules by a person without a specialized knowledge of the mechanics of shutter systems.

BACKGROUND OF THE INVENTION

As is well-known, conventional roll-up shutter systems consist of a series of interconnected slats that form a set attached to a shaft, and some drive mechanisms to raise, lower or block the set of slats in an intermediate position. In these conventional systems, the set of slats is raised when the shaft at the top of the shutter is made to rotate by the effect of the torque exerted on this shaft as a result of the tension of a cord or belt that unrolls from a reel connected to the shaft, to be rolled up in another reel separated from the shaft located at the bottom, which turns by the action of a spring to roll up the cord unrolled from the upper reel connected to the shaft.
By releasing the tension of the cord or belt on the upper reel connected to the shutter shaft, the torque exerted on this shaft by the weight of the hanging slats makes the set of slats drop, while the cord or belt unrolls from the spring-driven lower reel to be wound up in the reel connected to the shaft.
For the sake of simplification, hereinafter we will call the shaft-connected reel the "upper reel", the spring-driven reel the "lower reel", and the belt, cord, cable or any other drive element of the traction system indistinctly the "belt".
The intermediate roll-up positions of the shutter slats are achieved by the effect of a brake of the cord or belt that usually forms an assembly with the lower reel.
The construction and installation works of roll-up shutters are done on site, in order to adapt the measurements of the shaft and other components to the available space, or else these are built into the final frame of doors and windows in a fully functional assembly that is delivered to the point of installation.
In the first case, when construction and installation are done by in situ fitting of the components, the job of fitting the shutter to the place of installation is slow and costly and the risk of errors high, all this resulting in high costs that are hard to control and in an operating quality and reliability that vary from one shutter to another. Moreover, installation in spaces that at times are hard to access, in which even professionals find it difficult to work, means that operations that should be as easy as replacing belts, slats, bearings and other components can be very difficult and risky, if not impossible for the users to execute.
In the second case, when the shutter and its accessories are built into the final frame, in a fully functional assembly that is delivered from the manufacturing plant to the point of installation, the risk of functional errors is lower than in the first case, but the operations of replacing belts, slats and other elements are still difficult and often dangerous for the user.
When the drive belt breaks, the upper part of the shutter system must be dismounted and a series of components manipulated that are inconvenient to work with and that can even injure the operator's hands, since the upper reel is integral with the shaft, which makes the belt replacement operation difficult.
This problem, which is still not resolved at the present time, has resulted in thorough studies of the causes and circumstances thereof, and the procedure of this invention aims to solve it.

BRIEF DESCRIPTION OF THE INVENTION

The new roll-up shutter solves the above mentioned problem, primarily caused by mounting the upper reel between the ends of its axial rotary shaft, and it considerably simplifies the belt replacement operation, which can be done with relative ease and without risk to the operator.
It is a matter, first of all, of organizing the components of the new roll-up shutter into separate functional assemblies that can be easily interconnected so as to facilitate the operations of manufacture, installation, maintenance and replacement.
Secondly, a simple frame is built, which we will call the "pre-frame", which, when embedded in the walls, serves both as a guide for the masons regarding the size of the openings to be left in the wall to house the shutter system, and as a fastening or support element for the final door and window frame and for the functional assemblies of the new roll-up shutter.
Third, a functional assembly is built that does not contain the upper or lower reel, but rather contains the set of shutter slats with their shaft and means of connection, to both the assembly containing the upper reel and, depending on the case, to the pre-frame or to the final frame of the door or window.
Fourth, a functional assembly is built that does not contain the shutter shaft, but rather contains the upper reel with its shaft and means of connection, to both the assembly that contains the shutter shaft and, depending on the case, to the pre-frame or to the final frame of the door or window.
Fifth, the connection and disconnection between the upper reel shaft and the shutter shaft is made possible by means of simple operations that can be performed by a user without a specialized knowledge of mechanics.
Sixth, the installation and removal of the assembly containing the upper reel, and of the assembly containing the shutter shaft, is made possible by means of simple operations that can also be performed by a user without a specialized knowledge of mechanics.
Seventh, the installation and removal of the assembly containing the lower reel and belt brake is made possible by means of simple operations that can also be performed by a user without a specialized knowledge of mechanics.
Likewise, an invention execution alternative is provided which resolves the problem primarily caused by the mounting, depending on the case, of the upper belt or cable reel between the ends of its axial rotary shaft, of the crank-driven gear rigidly joined to the slat shaft, and of the motor inside the shaft. This considerably simplifies the belt, cable, gear and motor replacement operations, which can be executed with relative ease and without risk to the person who performs these operations.
It is a matter, first of all, of organizing the components of the new roll-up shutter into separate functional assemblies that can be easily interconnected so as to facilitate the operations of manufacture, installation, maintenance and replacement.
Secondly, a simple frame is built, which we will call the "pre-frame", which, when embedded in the walls, serves both as a guide for the masons regarding the size of the openings to be left in the wall to house the shutter system, and as a fastening or support element for the final door and window frame and for the functional assemblies of the new roll-up shutter.
Third, a functional assembly is built that does not contain the upper or lower reel, or the motor or gear, but rather contains the set of shutter slats with their shaft and means of connection, to both the assembly containing the upper reel, the gear or the motor and, depending on the case, to the pre-frame or to the final frame of the door or window or to a box built in the wall. For the sake of simplification, hereinafter we will call this assembly unit A.
Fourth, a functional assembly is built that does not contain the shutter shaft, but rather includes, depending on the case, the upper reel with its shaft, the gear or the motor and the means of connection, to both unit A and, depending on the case, to the pre-frame or to the final frame of the door or window, or to a box built in the wall. For the sake of simplification, we will call this assembly unit B.
Fifth, the connection and disconnection between unit A and unit B is made possible by means of simple operations that can be performed by a user without a specialized knowledge of mechanics.
Sixth, the installation and removal of unit A and unit B is made possible by means of simple operations that can also be performed by a user without a specialized knowledge of mechanics.
Seventh, a functional assembly is built that includes, depending on the case, the lower spring-driven belt reel, the lower crank-driven cable reel or the motor, and the means of connection to the pre-frame, to the final frame of the door or window, or to a box built in the wall. For the sake of simplification, hereinafter we will call this assembly unit C.
Eighth, the installation and removal of unit C is made possible by means of simple operations that can also be performed by a user without a specialized knowledge of mechanics.
To facilitate the explanation, this description is accompanied by some drawings that show, by way of an illustrative, non-limitative example, some preferential cases of execution of a roll-up shutter according to the principles of the claims.

DESCRIPTION OF THE DRAWINGS AND THE INVENTION

Figure 1 shows a longitudinal section of the assembly with the belt rolled up into the upper reel and the slats lowered. In this figure, we can see the prefabricated assembly with its box or support (1) which, at the time of onsite installation, will be inserted into the openings provided for this purpose and fastened to the pre-frame or, depending on the case, to the final frame.
Figures 2 and 3 show a breakdown of the assembly shown in Figure 1 into two units which, hereinafter, we will call shutter unit -A- and upper reel unit -B-, respectively.
Figure 2 shows the shutter unit -A-, consisting of the box or support -1- of the assembly on which the different components of the shutter shaft are mounted, which are the exterior metal plate tube -2-, a fitting piece -3- and the shaft itself - 4-, the bearings -5-, the set of slats -6- and the connection piece -7- to the upper reel unit -B-, shown in Figure 3. To the right of the connection piece -7- to the upper reel unit -B-, we can see the space -8- provided to house this upper reel unit -B- once it is connected to the shutter unit -A-.
Figure 3 shows the upper reel unit -B-, consisting of a box or support -9-, inside which the upper reel shaft -10- and the bearings -11- and -12- are mounted, as well as the upper reel -3- with the rolled up belt -14-. To the left of this support, a part of the upper reel shaft -13- projects, and to this is rigidly joined a piece -15- that serves as connection to the shutter unit -A-.
Figure 4 shows the connection piece -7- of the shutter unit -A-. In this figure we can see the constructive details of this piece, consisting of another three pieces, one a support piece -16- and two projections -17- and -18- that are rigidly joined to form a central groove -19- that serves as a guide for the connection piece -15- of the upper reel unit -B-, as shown in Figure 1.
Figure 5 shows the connection piece -15- of the upper reel unit -B-. In this figure we can see some blades -20- and -21- which, on insertion into the groove - 19- of the connection piece -7- of the shutter unit -A-, form an assembly together with the latter for reciprocal transmission of the torques coming from the action of the belt -14- on the upper reel -13- or from the weight of the hanging slats on the shaft -4- of the shutter, depending on whether the set of slats is being raised or lowered.
Figure 6 shows a front view of the shaft -4- of the shutter installed on its support (1), with the connection piece -7- of the shutter unit -A- and the empty space -8- for this unit to its right.
Figure 7 shows, in a ground plan, the frontal way of connecting the upper reel unit -B- that contains the upper reel -13- to the shutter unit -A- that contains the shutter shaft -4-. To do so, with the slats completely lowered, the connection piece -7- is made to turn slightly until the groove -19- is aligned with the blades - 20- and -21- of the connection piece -15- of the upper reel unit -B-. Once aligned, the upper reel unit -B- must be pushed towards the inside, and it is fastened by means of, for example, a pin -22-, shown in figure 11, or another fastening system. To remove the unit from the upper reel -B-, the connection piece -7- is turned until the connection groove -19- is parallel to the direction of removal of the upper reel unit -B-, which unblocks the latter and it can then be pulled out.
Figure 8 shows a front view of the functional shutter assembly resulting from the installation and interconnection of units A and B.
The version shown in Figures 1 to 8 we will call the transversal connection version, because the connection of units A and B is done be inserting the upper reel unit -B- into the shutter unit -A- in a transversal direction to the shutter shaft - 4-.
Figures 9 and 10 show, on a non-limitative basis, other versions of the system with axial connection, which is the object of this patent.
In Figure 9, the connection piece -7- of the shutter unit -A- of Figure 2 has been replaced by the connection piece -23-, and the piece -15- of Figure 3 has been replaced by the piece -24-, in order to facilitate the axial connection.
Figure 10 shows another axial connection version of the upper reel unit -B-directly over the shaft -4- of the shutter unit -A-.
Figure 11 shows at the bottom the lower reel unit -C-, which is fastened to a box or support installed in the pre-frame or in the wall, as is the upper reel unit - B-, by means of a pin -22-, and which also consists of a box or support -25- of the assembly on which the lower spring-driven reel -26-, the different elements of its shaft, the brake -27- of the belt -14- and the lower reel block-unblock mechanism are mounted. This latter element is composed of the tilting piece -28- and the projection from the wall -29- that acts on it to unblock the mechanism on being introduced through the opening -30- of the box -25- when the assembly of the lower reel unit -C- is put in its place, and likewise, as shown in the drawing, when this assembly is removed and the projection -29- of the box or support installed in the pre-frame or the wall stops acting on the tilting piece -28-, the latter recovers its position thanks to a spring and blocks the mechanism.
Figure 11 also shows, at the top, the upper reel unit -B- with the details of the block-unblock mechanism of the upper reel -13-. This mechanism is composed of the tilting piece -31- and the projection from the wall -32- and works in the same way as in the case of the lower reel unit -C-, i.e., on penetrating the projection -32-, through an opening -33- of the box -9-, it acts on the tilting piece - 31- and releases the mechanism. In this case, the assembly of the upper reel unit -B- has been shown installed in its position and, therefore, with the mechanism unblocked.
In Figure 11, units B and C are joined by the above mentioned belt -14-wound at its ends to the upper reel -13- and lower reel -26-, which turn so that when the belt -14- is rolled up in one it is unrolled from the other, leaving a free length between them of approximately 1.5 m, and conceived as a unified functional element of the shutter which is installed or replaced, in the event of wear or breakdown, as a whole and which is one of the essential features of the invention. In this way, following an installation sequence in which the shutter unit - A- is installed first, then the upper reel unit -B-, connecting it to the shutter unit -A-, and afterwards the lower reel unit -C- in its housing in the wall, the length of the belt -14- will be automatically adjusted on being rolled up into the lower reel -26-by the effect of this reel's spring, which will be released when the tilting piece -28-reaches the unblock position, as has been shown at the bottom of Figure 13 with the tilting piece -31- of the upper reel unit -B-.
Figures 12 and 13 show two sequences of the brake mechanism that the invention provides for the shutter unit -A-, in order to prevent involuntary rotation of its shaft 4, together with the shutter slats, which could possibly cause accidents. This mechanism blocks the connection piece -7- of the shutter unit -A-by means of piece -34- which, when pushed by a spring, functions to remove the connection piece -15- from the upper reel unit -B- and occupies its place, and in the same way the mechanism unblocks when the connection piece -15- is again introduced into the groove -19- of the piece -7- corresponding to the shutter unit - A-.
Figures 14 to 23 show an alternative execution of the invention, such that Figure 14 shows units B and C illustrated in Figure 11, but rigidly joined to form a new functional assembly that we will call unit D in which the length of the belt is already adjusted (new feature).
Figure 15 shows unit D in the crank-driven version, which is used to turn the lower reel (26) of unit C by means of a gear, transmitting the force to the upper reel of unit B by a cable that unwinds from one reel and winds up into the other, causing the slats to be raised or lowered according to the direction of rotation of the crank (new feature).
Figure 16 shows unit B in the crank-driven version. In this mechanical solution, the unit B and unit C reels are not required, because the crank is directly connected to one of the shafts of a gear, built into unit B, that transmits the torque to the shaft of unit A by means of connection pieces 7 and 15, raising or lowering the slats according to the direction of rotation of the crank (new feature).
Figures 17, 18 and 19 show power-operated versions in which the motor forms an integral part of unit B or unit C.
Figure 17 shows unit B in the power-operated version in which the reel and belt have been replaced by a motor and its corresponding control elements. In this version, the belt and unit C are not required, and this is a very important point as the motor is included in unit B.
Figure 18 shows unit B in the power-operated version in which the reel and the belt have been replaced by a motor and its corresponding control elements, as shown in Figure 17, but to which a crank-driven gear has been added, allowing for operation in motor or manual mode (new very important feature, with the motor in unit B and with the possibility of manual crank-driven operation).
Figure 19 shows units B and C (alternatively unit D) joined by a belt. Unit B includes a part of the belt, the upper reel and an electric motor with its corresponding power supply and control elements. Unit C includes the same elements as in the belt version, but the belt brake has been modified to add a block-unblock mechanism that can be operated by the user at will with a pushbutton that allows for operation in motor or manual model. In motor mode, the belt brake in unit C is inactive and it is the motor control mechanism that moves or brakes the belt. In manual mode, the brake should be activated (new very important feature, with the motor in unit B, with belt, and modified brake mechanism in unit C).
Figure 20 shows units B and C (alternatively unit D) joined by a belt. In this case, unit C includes the box or support, part of the belt, the lower reel, and an electric motor with its corresponding power supply and control elements, all this allowing for operation in motor or manual mode at the user's discretion. Unit B includes the same elements as in the belt version (new feature, with the motor in unit C, with belt, and modified brake mechanism in unit C).
Figure 21 shows a cross section of a door or window with unit A - the object of the patent - installed and the slats completely lowered. A safety mechanism can be seen at the bottom of the unit A box, which consists of one or more sliding bars operated by a pushbutton and which, when they pass through a reinforced slat that is perforated for this purpose, block the set of slats at the top so that they cannot be raised from the exterior. Figure 23 shows this same safety mechanism that blocks the slats completely rolled up inside the box of unit A in order to facilitate transport, installation and removal operations of this unit (safety mechanism claim).
Figure 22 shows a cross section of a door or window with unit A - the object of the patent - installed and the slats completely rolled up inside the box or support of unit A. This figure shows that, unlike conventional shutters, the rails attached to the frame that guide the shutter when it is raised or lowered do not penetrate inside the box where the shutter is rolled up, in this case the box of unit A. It can also be seen that, unlike conventional shutters in which the lower slat and the butt ends are outside the box when the shutter is completely rolled up, the rolling ends of the shutter in the box of unit A are arranged such that, when the shutter is completely rolled up, all the slats are inside the box of this unit, thus facilitating removal of unit A with the shutter rolled up, as shown in Figure 23 (claim of rails that do not penetrate the box and butt ends located such that the entire shutter, when rolled up, penetrates the inside of the box of unit A, thus facilitating transport, installation and removal).
Figure 23 shows unit A with the slats completely rolled up and blocked for transportation by the same safety mechanism shown in Figure 21, which now blocks the slats completely rolled up inside the box of unit A (claim of a safety and blocking mechanism for transportation).

PREFERENTIAL EXECUTION OF THE INVENTION

The preferred form is the one described in Figures 1 to 8 of the drawings, i.e., the one in which the upper reel unit -B- is inserted in transversal direction to the shaft. The axial insertion methods of the upper reel unit -B- should likewise be protected.
Non-limitative execution examples of the axial insertion system have been shown in Figures 9 and 10.
The preferred form of constructing the assembly of units B and C joined by the belt is the one shown in Figure 11.
Likewise, an invention execution alternative has been provided, in which the preferred form of execution of the crank-driven version is the one described in Figure 16, i.e., with the gear in unit B and the crank connected to it such that unit C is not required.
The preferred form of execution of the power-operated version is the one shown in Figure 18, i.e., with the motor in unit B because, given the facility with which the invention allows for replacement of a broken unit B by another, the crank and the belt are superfluous.
The preferred form of execution of the block mechanism for safety and transportation is the one shown in Figures 21 and 23.
The preferred form for transportation of unit A is with all the slats inside, blocked by the butt ends and by the safety mechanism, as shown in Figure 23.
The preferred form of installation and removal of unit A is by insertion or removal, respectively, in a perpendicular direction to the wall of the box of this unit, with all the slats and ends inside the box, as described in Figure 23.
Having sufficiently described the nature of this invention, as well as the way to put it into practice, it is noted that, as part of its essentiality, it can be implemented with other forms of execution that differ in detail from that indicated by way of example, with the materials and forms that best adapt to each case and which will likewise be subject to the claimed protection provided that the fundamental principle is not altered, changed or modified.

Claims

ROLL-UP SHUTTER, of the type composed of a support (1) on which a shaft (4) and other elements are mounted, in which the slats are rolled up, moving them either manually or by means of an electric motor, by a belt (14) associated with an upper winding reel integral with its axial rotary shaft, and with a lower spring-driven unwinding reel, characterized by the fact that it includes three units of differentiated elements, two at the top - the shutter unit (A) and the upper reel unit (B) - and another at the bottom corresponding to the lower reel unit (C); in which the mentioned shutter unit (A), consisting of the box or support (1) for the assembly on which the different components of the shutter shaft (4), the bearings (5) and the set of slats (6) are mounted, incorporates a connection piece (7) to the upper reel unit (B); in which the upper reel unit (B), which includes a box or support (9) on which the shaft of the upper reel (10) and the bearings (11) and (12), as well as the upper reel (13) with part of the rolled up belt (14), are mounted, is an element that is fully independent of the shutter unit (A); in which the lower reel unit (C), which includes a box or support (25) for the assembly on which the lower spring-driven reel (26), with part of the belt (14) and its brake (27) and the different elements of its shaft are mounted, and the upper reel unit (B) are conceived as an integral element that is easily connected and separated, for purposes of replacement in the event that the belt (14) has to be replaced.
ROLL-UP SHUTTER, according to claim 1, characterized by the fact that the mentioned upper reel unit (B) is connected to the mentioned shutter unit (A), through a simple operation that can be performed by a user lacking a specialized knowledge of mechanics, by sliding the connection piece (15) of the support (9) corresponding to the upper reel unit (B) into the groove (19) of the connection piece (7) of the box (1) corresponding to the shutter unit (A).
ROLL-UP SHUTTER, according to claims 1 and 2, characterized by the fact that the lower reel unit (C), consisting of a box or support (25) for the assembly on which the lower spring-driven reel (26), the different elements of its shaft and the brake (27) of the belt (14) are mounted, incorporates a block-unblock mechanism for the lower reel (26), composed of the tilting piece (28) and the projection (29) of the box or support installed in the pre-frame or in the wall that actuates it and unblocks the mechanism on being introduced through the opening (30) of the box (25) and placing the assembly of the lower reel unit (C) in its place, and that when this assembly is removed and the projection (29) stops acting on the tilting piece (28), the latter recovers its position thanks to a spring and blocks the mechanism.
ROLL-UP SHUTTER, according to the previous claims, characterized by the fact that the upper reel unit (B) incorporates a block-unblock mechanism for the upper reel (13), composed of the tilting piece (31) and the projection (32) of the box or support (1), such that when this projection (32) passes through the opening (33), it acts on the piece (31) to release the mechanism, and vice versa.
ROLL-UP SHUTTER, according to the previous claims, characterized by the fact that the upper reel and lower reel units (B) and (C) are joined by the belt (14) wound at its ends to the upper reel (13) and lower reel (26), leaving a free length of approximately 1.5 m. such that, when the assembly is mounted, the length of the belt is automatically adjusted when it is rolled up in the lower reel (26) by the effect of the spring of this reel, which will be released when the tiling piece (28) reaches the unblock position.
ROLL-UP SHUTTER, according to the previous claims, characterized by the fact that it provides a brake mechanism for the shutter unit (A) in order to prevent involuntary turning of its shaft (4), together with the shutter slats, which blocks its connection piece (7) by means of the piece (34) which, pushed by a spring, acts to remove the connection piece (15) from the upper reel unit (B) and occupy its place, and which unblocks the mechanism when the piece (15) is again introduced into the piece (7) corresponding to the shutter unit (A).
ROLL-UP SHUTTER, according to claim 1, characterized by the fact that, in another preferential execution, the connection of the upper reel unit (B) can be axially made directly on the shaft (4) of the shutter unit (A).
ROLL-UP SHUTTER, which includes a shutter unit (A), an upper reel unit (B) and a lower reel unit (C), characterized by the fact that in an invention execution alternative, units (B) and (C) are rigidly joined to form a functional assembly in which the length of the belt is already adjusted.
ROLL-UP SHUTTER, according to claim 8, characterized by the fact that the shutter is operated by a crank, which makes the lower reel (26) of unit (C) turn by means of a gear, transmitting the force to the unit's upper reel (B) by means of a cable that rolls out from one reel and rolls up into the other, raising or lowering the slats according to the direction of rotation of the crank.
ROLL-UP SHUTTER, according to claims 8 and 9, characterized by the fact that the shutter is operated by a crank, which makes a gear included inside unit (B) turn, which transmits the torque to the shaft of unit (A) through connection pieces (7) and (15), raising or lowering the slats according to the direction of rotation of the crank.
ROLL-UP SHUTTER, according to claim 8, characterized by the fact that the torque of the shaft of the shutter unit (A) is produced by a motor included in unit (B) in replacement of the belt and the reel.
ROLL-UP SHUTTER, according to claim 11, characterized by the fact that to the power-operated version of unit (B), a crank-driven gear has been added to allow for operation in motor or manual mode.
ROLL-UP SHUTTER, according to claims 8 and 11, characterized by the fact that unit (B) includes a part of the belt, the upper reel and an electric motor with its corresponding power supply and control elements, unit (C) includes the same elements as the belt version, with the belt brake modified to add a block-unblock mechanism that can be operated by the user at will with a pushbutton that allows for operation in motor or manual model such that, in motor mode, the belt brake in unit (C) is inactive and it is the motor control mechanism that moves or brakes the belt, and in manual mode the brake should be activated.
ROLL-UP SHUTTER, according to claims 8 and 11, characterized by the fact that unit (C) includes the box or support, a part of the belt, the lower reel and an electric motor with its corresponding power supply and control elements, all this allowing for operation in motor or manual mode at the user's discretion, and unit (B) includes the same elements as in the belt version.
ROLL-UP SHUTTER, according to claim 8, characterized by the fact that unit (A) includes a safety mechanism, consisting of one or more sliding bars driven by a pushbutton which, when they pass through a slat perforated for this purpose, block the set of slats lowered from the top such that they cannot be raised from the exterior. When the bars pass through another slat, this safety mechanism also makes it possible to block the slats completely rolled up inside the box of unit (A) in order to facilitate transport, installation and removal operations of this unit.
ROLL-UP SHUTTER, according to claim 8, characterized by the fact that with unit (A) installed and the slats completely rolled up inside the box of unit (A), the rails attached to the frame that guide the shutter when it is raised or lowered are located outside the box of unit (A) where the shutter is rolled up or down.
ROLL-UP SHUTTER, according to claim 8, characterized by the fact that when the shutter is completely rolled up, the rolling ends of the shutter in the box of unit (A) are arranged such that all the slats are on inside the box of this unit, thus facilitating removal of unit (A) with the shutter rolled up.
ROLL-UP SHUTTER, according to claim 8, characterized by the fact that when unit (A) has the slats completely rolled up and blocked for transportation, the safety mechanisms blocks the slats completely rolled up inside the box of unit (A).