EA032647B1 - Roll-down shutter system having a device for protection of a manual emergency drive shaft against unauthorized access - Google Patents

Abstract

The invention is related to a device for protection against unauthorized access that provides protection against unauthorized use of a manual emergency drive in roll-down shutter systems. The invention proposes a roll-down shutter system comprising an electric drive, a manual drive, a device for protection against unauthorized access to a manual emergency drive including a blocker (6) for blocking rotation of a manual emergency drive shaft (3) of the roll-down shutter system, said blocker is mounted in a casing (7) that is stationary in respect of a side cover (2) of the main electric shaft of the roll-down shutter system and is able to perform controlled reciprocate motion in a direction transverse to the axis of the manual emergency drive shaft (3) of the roll-down shutter system so as to come in a controllable contact with said shaft (3) to block its rotation; the protection device further includes a two-position switch (12) with a lock device for controlling the position of the blocker (6), the switch being mounted on the outside surface of the roll-down shutter system guide (4) or on the outside surface of the enclosing structure, and being connected to the blocker (6) by means of a cable (11) accommodated in the cavity of said guide (4) or said enclosing structure.

Description

The invention relates to a device for protection against unauthorized access, providing protection against unauthorized use of a manual emergency drive in roller shutter systems. A roller shutter system is proposed, comprising electric and manual drives, a device for protecting against unauthorized access to the shaft of a manual emergency drive, comprising a blocker (6) for turning the shaft (3) of the manual emergency drive of the roller shutter installed in the housing (7), static with respect to the side cover (2) the main electric shaft of the rolling system, while the lock (6) is made with the possibility of controlled reciprocating movement in the direction perpendicular to the axis of the shaft (3) of the manual emergency roll drive system, with entering into controlled contact with the specified shaft (3) with blocking its rotation, and the protection device also includes a two-position switch with a locking device (12) for controlling the position of the lock (6), located on the outer surface of the guide (4) of the rolling system or the outer surface of the enclosing structure and connected to the blocker (6) by means of a cable (11) held in the cavity of the specified guide (4) or the specified enclosing structure.

The invention relates to the field of construction of buildings and structures for industrial and civil purposes, in particular to shielding or protective devices for openings, in particular to the design of protective rolling systems with selective electrical and manual control, used for installation at the entrances of residential, commercial and office premises. More specifically, the invention relates to a device for protection against unauthorized access, providing protection against unauthorized use of a manual emergency drive in roller shutter systems.

Protective shutter systems in the modern world have become an integral attribute of security for both industrial premises, shopping centers, office premises, and for residential urban and suburban homes. Roller shutters can be controlled manually (for example, using mechanical drives of various types: tape, cord and winch) or automatically - with the help of electric drives. The main structural elements of roller shutter systems are: roller shutter, protective box, guide rails, end profile and drive. However, despite the fact that roller shutter systems are designed to protect buildings and structures from external factors, it is often necessary to prevent the possibility of unauthorized access to the mechanism of the roller shutter system itself. At the same time, the task of protection against unauthorized access in various roller shutter systems is solved in various ways, usually depending on the drive and the principle of its management.

So for safe remote control of an electric drive equipped with, for example, an integrated or external receiver ΌοοτΗπη, a remote control panel or a radio-code wireless keyboard can be used [1]. The radio control system uses the technology of dynamic code, which changes with each signal, ensuring complete security and secrecy of the produced signal, eliminating unauthorized use of the drive. It is also possible to use additional control devices: key-buttons or control posts [1]. So a two-position key-button (8 ^ K) is used to submit control commands to the control unit for intra-shaft electric shutters. The key button 8 ^ K has a mechanical lock, which does not allow you to remove the cover from the housing without the original key installed and turned and can be installed in an overhead way. The same function is performed by the three-position control post ΒυΤΤΟΝ2Κ [1], designed to control shaft drives for sectional doors. One post button is responsible for opening the gate, the other for closing. The post is equipped with a key to protect against unauthorized inclusion. The disadvantage of all these systems is that in the absence of electricity or uninterruptible power supply, such devices do not work, the safe installation of such systems, in most cases, is possible only indoors. In addition, the installation of such automatic systems is undesirable with very intensive use of roller shutters.

To open or close the gate in the absence of electricity, a mechanical release is provided, when the lever is turned, the gearbox is unlocked, so that the gate can be moved manually [2]. If it is necessary to unlock the drive from the street, an external cable release is pre-installed, which is protected by an unauthorized unlocking key. In addition, the electric drive is equipped with an emergency manual lifting mechanism (system ΝΗΚ) - a winch drive. For emergency opening, various types of wrenches are used (UK8, UKK, UKR), which differ in the method of fastening and the presence of a cardan drive, which is designed to output emergency control through the wall. The disadvantages of such systems include the impossibility of creating safe working conditions for the electromechanical drive, despite the proposed means of protection, such as locks, the need for additional costs for installation and repair of the proposed structures. In addition, the use of protective equipment does not include installation on existing engines.

A known method of outputting the drive ΝΗΚ of the intra-shaft drive from the outside is the roller shutters with mounting on the bus and with the access to the drive being closed by a cover with a lock, proposed by A1i1ih [3]. The proposed system allows to provide reliable protection against unauthorized access to the drive, the simplicity of the design provides for ease of installation and repair, the use of a small removable door, provides for the possibility of output through the wall. The disadvantages of this protection system are the presence of an additional hole in the box and the lid, the need for additional space to accommodate the drive parts protruding beyond the dimensions of the box, and the possibility of mounting only the box inside.

There is also a method of outputting the drive ΝΗΚ of the intra-shaft drive to the bus with closing access to the drive with a cover with a lock [4], which provides reliable protection against unauthorized access to the drive. The drive ΝΗΚ is discharged by means of cardan couplings through the removable leg of the cover into the tire cavity, which is closed by the cover with a lock. With this design of the drive, there are no additional holes in the box and the lid, and the parts of the drive do not protrude beyond the dimensions of the box, which makes it possible for any type of installation of shutters. In addition, this method of outputting drive ΝΗΚ allows the use of a small-sized handle. The disadvantages of the design include a decrease in drive efficiency due to an increase in the effort on the head and the presence of two cardan gears at an angle of 90 °. The design requires an additional part - a removable leg. In case of internal breakdown

- 1,032,647 of them cardans, which is quite likely during overloads, this design requires a fairly complicated repair. In addition, it is not clear that the drive can exit through the wall.

The objective of the invention is to develop the design of a roller shutter system with a device for protection against unauthorized access to the shaft of a manual emergency drive. The rolling system, in general, and the device for protection against unauthorized access, in particular, with maximum simplicity of design, should provide a higher degree of protection and prevent access to the roller shutter in a simple and economical way, providing increased reliability of the protective roller systems. The design of the device for protection against unauthorized access should provide an increase in the service life, as well as simplification of repair with convenient access to the elements of the device as part of the roller shutter system.

The problem is solved by the claimed roller shutter system comprising an electric drive and a manual emergency drive, a device for protecting against unauthorized access to the shaft of a manual emergency drive, comprising a rotation lock for the shaft of a manual emergency drive of the rolling system installed in a housing that is static with respect to the side cover of the main shaft with an electric drive rolling system. The lock is made with the possibility of controlled reciprocating movement in the direction perpendicular to the axis of the shaft of the manual emergency drive of the rolling system, with a controlled contact with the specified shaft of the manual emergency drive of the rolling system with blocking its rotation. The protection device also contains a two-position switch with a locking device for controlling the position of the blocker, located on the outer surface of the guide of the rolling system or the outer surface of the enclosing structure and connected to the blocker by means of a cable held in the cavity of the specified guide or the specified enclosing structure.

In preferred forms of implementation of the inventive rolling system, the rotary lock shaft of the manual emergency drive is made in the form of a spring-loaded rod with a tip, the shape and dimensions of which correspond to the shape and dimensions of the hole made on the rotor of the manual emergency drive shaft.

Also preferred are implementation forms in which the device for protecting against unauthorized access of the inventive rolling system contains a two-position switch that is combined with a locking device and, in turn, contains a removable core of the locking device and a hook connected to the end of the cable, made and arranged to fix the position cores in two positions. In one of the positions, when the core is installed in the lock device and the lock device is locked, the interlock is in contact with the shaft of the manual emergency drive. In the second position, when the locking device is open, and the core is removed from the locking device and fixed in this position by means of a hook, the interlock is brought out of contact with the shaft of the manual emergency drive.

The above-mentioned and other features and advantages of the inventive rolling system with a device for protecting against unauthorized access to the shaft of a manual emergency drive will be discussed below in more detail on some of the possible, but not limiting examples of implementation with reference to the position of the figures, which are schematically represented:

FIG. 1 is a General view of the locking device from the device of protection against unauthorized access installed in the area of the shaft of the manual emergency drive of the inventive rolling system;

FIG. 2 is a detail view of a blocking device of a manual emergency drive shaft;

FIG. 3 is a general view of the on / off switch with a locking device from the device of protection against unauthorized access in the lock position of the shaft of the manual emergency drive;

FIG. 4 is a general view of the on / off switch with a locking device from the device of protection against unauthorized access in the unlock position of the shaft of the manual emergency drive.

In FIG. 1 is a schematic general view, and FIG. 2 is a detail view of the blocking device from the device for protection against unauthorized access to the shaft of the manual emergency drive of the inventive rolling system installed in the area of the shaft of the manual emergency drive. In FIG. 1, in particular, shows the main shaft 1 with an intra-shaft drive (not shown in the figure) mounted on the side covers 2, mechanically connected to the main shaft 1, the shaft 3 of the manual emergency drive, the vertical guides 4 mounted in the opening and the web connected to the main shaft 1 5 shutters. The device contains a blocker 6 (see Fig. 2) of rotation of the shaft 3 of the manual emergency drive installed in the housing 7, static with respect to the side cover 2 on the bracket 8 with the possibility of controlled reciprocating movement in the direction perpendicular to the axis (not shown in the figures ) shaft 3 of the manual emergency drive. The rotation lock 6 of the manual emergency drive shaft 3 shown in FIG. 2, is made in the form of a spring-loaded rod 9 with a tip, the shape and dimensions of which correspond to the shape and size of the hole (not indicated in the figures), made on the rotor 10 of the shaft 3 of the manual emergency drive (in Fig. 2, the tip is placed in the hole of the rotor 10).

The lock 6 is connected by a cable 11, held in the cavity of the guide 4, with a two-position switch

- 2 032647 key switch with locking device 12.

A general view of the on / off switch with a locking device 12 from the composition of the inventive anti-tamper device is shown schematically in FIG. 3 - in the lock position of the shaft 3 of the manual emergency drive and in FIG. 4 - in the unlocking position of the shaft 3 of the manual emergency drive. The on-off switch in the considered implementation form is combined with the locking device 12, which comprises a cover 13 fixed to the outer surface of the guide 4, a removable core 14 and a key 15. A catch 16 is also provided on the cover 13 for fixing the core in the removed position. The on-off switch with a locking device 12 in an exemplary implementation form comprises a removable core 14 of the locking device 12 and a hook 16 connected to the end of the cable 11, made and arranged to fix the position of the core 14 in two positions. In one of the positions, when the core 14 is installed in the locking device 12 and the locking device 12 is locked with a key 15 (Fig. 3), the blocker 6 is in contact with the shaft 3 of the manual emergency drive. In the second position, when the locking device 12 is open and the core 14 is removed from the locking device 12 and fixed in this position by the hook 16 (Fig. 4), the interlock 6 is brought out of contact with the shaft 3 of the manual emergency drive.

The inventive rolling system with a device to protect against unauthorized access to the shaft of a manual emergency drive operates as follows.

When the shaft 3 of the manual emergency drive is locked, the core 14 is installed in the locking device 12, which is locked with a key 15. The cable 11, stretched through the cavity of the guide 4, is in a free state, and the spring-loaded rod 9 of the lock 6 from its tip is located in the hole made in the rotor 10, thereby blocking the rotation of the shaft 3 of the manual emergency drive. The key 15 is removed from the locking device 12. The execution of the lining 13 and the core 14 almost in the same plane with the outer surface of the guide 4 reduces the risks of mechanical breaking of the locking device 12.

To unlock the shaft 3 of the manual emergency drive with the key 15, the locking device 12 is unlocked, thereby transferring the core 14 to a position in which it can be easily removed from the locking device 12, and then lock the core in the extracted position by means of the hook 16 provided on the cover 13. In this case, the cable 11 is pulled, the spring under the rod 9 of the lock 6 is compressed, and the spring-loaded rod 9 moves down, and its tip comes out of the hole in the rotor 10, thereby removing the obstacle for the rotation of the shaft 3 of the manual accident th drive.

To lock the shaft 3 of the manual emergency drive, the core 14 of the locking device 12 is disengaged from the hook 16 and installed in the locking mechanism 12. In this case, the cable 11 is loosened, the spring of the lock 6 is opened and the spring-loaded rod 9 moves vertically upward. At the same time, its tip enters the hole on the rotor 10 of the shaft 3 of the manual emergency drive and blocks its further rotation. The installed core 12 is fixed in this position when locking with the key 15 of the locking mechanism, after which the key 15 is removed from the locked locking mechanism 12, and the shaft 3 of the manual emergency drive remains in the locked position even when trying to bring it in rotation by means of a wrench installed in the corresponding hole ( which always remains open).

Thus, the inventive roller shutter system with a device for protecting against unauthorized access to the shaft of the manual emergency drive with a minimum number of parts and in the absence of complex mechanisms allows you to prevent access to the shaft of the manual emergency drive roller shutters in a simple and economical way and to provide increased reliability of protective roller shutter systems.

Information sources.

1. Automation for gates EogNap. Product catalog EootNap. [Electronic resource] - August 19

2015 - Access mode: Y1p: //uuu.booghap.gi/gobis18/8181etu-au1otaY7a18Y/au1otaykaboogyap/ak8e88iagu/i81gou81uairgau1ep1ua/.

2. Automation for gates and doors. Catalog of the company RAAS. [Electronic resource] - August 19, 2015 - Access mode: 1i1p: // \ y \ y \ u.Gaas.gi / P1eabtt / 1etr1a1e8 / y1e8etueg / sa1a118ypo K.i_sotr1e1o.rbG.

3. Presentation of A1i1ih RechbEShch® OatadeShot. [Electronic resource] - August 19, 2015 - Access mode: 1 Шр5: // \ у \ у \ у. уои1Ь. have / \ уа1с11? У = 3б] ЕдсХуС1О

4. Patent ΌΕ 10225973 B4, publ. 02.02.2012.

Claims (3)

CLAIM 1. Rolling system comprising an electric drive and a manual emergency drive, a device for protecting against unauthorized access to the shaft of the manual emergency drive, comprising a blocker (6) for turning the shaft (3) of the manual emergency drive of the rolling system, installed in the housing (7), static in relation to the side cover (2) of the main shaft with an electric roller shutter system, while the lock (6) is made with the possibility of controlled reciprocating movement in the direction perpendicular to the axis of the shaft (3) manual emergency water rolling system, with ent - 3 032647 by direct contact with the specified shaft (3) of the manual emergency drive of the rolling system with blocking its rotation, and the protection device also contains a two-position switch with a locking device (12) to control the position of the lock (6) located on the outer surface of the guide ( 4) a rolling system or the outer surface of the enclosing structure and connected to the blocker (6) through a cable (11) held in the cavity of the specified guide (4) or the specified enclosing structure. 2. The device according to claim 1, characterized in that the lock (6) of rotation of the shaft (3) of the manual emergency drive is made in the form of a spring-loaded rod (9) with a tip, the shape and dimensions of which correspond to the shape and dimensions of the hole made on the rotor (10 ) shaft (3) of the manual emergency drive. 3. The device according to any one of claims 1 or 2, characterized in that the on-off switch is combined with the locking device (12) and comprises a removable core (14) of the locking device (12) and a hook (16) connected to the end of the cable (11), made and located with the possibility of fixing the position of the core (14) in two positions, namely, in the position when the core (14) is installed in the locking device (12) and the locking device is locked, while the contact of the lock (6) with the shaft (3) is provided manual emergency drive, and in position when the locking device (12) is open and the core (14) is removed from the locking device (12) and fixed in this position by means of a hook (16), while the interlock (6) is brought out of contact with the shaft (3) of the manual emergency drive.