ITAR20090007A1 - AUTOMATIC DOOR WITH OPENING TO THRUST, PARTICULARLY FOR ACCESSIBLE USES ALSO AS EMERGENCY OUTPUTS. - Google Patents

Description

AUTOMATIC DOOR WITH PUSH OPENING,

ESPECIALLY FOR USABLE ACCESSES ALSO

AS AN EMERGENCY EXIT

DESCRIPTION

The present invention relates to an automatic door with push opening, particularly for accesses that can also be used as emergency exits.

Automatic sliding doors of different types are known depending on the characteristics of the access on which they are installed: for example, roto-translating or linear sliding. These automatic doors normally include a device for breaking down at least one door leaf, which can be operated in emergencies with a push on the door to be pulled down.

The thrust causes pressure on the surface of the door which allows the door to be knocked down and transit through the opening defined by the door.

This type of automatic door is used for example in so-called "self" areas such as closed spaces adjacent to banks where automatic cash withdrawal machines are installed. They are also often used for access to public premises or places open to the public, since these doors can also be used during emergency situations, for example in shopping centers, department stores, shops, museums, airports, hotels, hospitals and offices. .

Automatic doors of the linear sliding type which are known, in the type with one or more leaves, have the upper or lower edge bound to slide on at least one linear guide, set in motion by motor means interlocked with activation means such as sensors movement (photocells) or opening buttons, which activate the movement when users pass.

In small entrances, where it is not possible to foresee the sliding of the leaves due to space problems, automatic doors with pivot-translating door opening can be installed. This kind of automatic doors is normally composed of one or two leaves, activated in the movement by means of detecting the passage of the user similar to the aforementioned. The abatement device, per se known, can comprise for example two electromagnets, one fixed on the integral part and the other on the leaf, held together by means of mutual association such as for example an established electromagnetic force and which can be calibrated at depending on the thrust you want to be sufficient to knock down the door.

This door is hinged in the upper part to an upper pin mounted on the crosspiece of the support frame and defining an axis of rotation of the door.

From the part closest to the ground, normally, the door has a lower pin bound to slide on a lower guide that accompanies the door in the opening and closing movement, preventing it from oscillating in the plane of the opening.

In the event of an emergency, for example with the interruption of electricity or in the event of a breakdown of the motor vehicles, an adequate thrust - according to what is prescribed by the current legislation, from inside the room to the outside - allows to activate the leaf lowering device by interrupting the interaction of the two electromagnets.

In this way the door is disarmed: the upper pin allows rotation around the rotation axis while the lower pin is free to translate on the lower guide.

The door then remains connected to the upper pin, thus remaining partially attached to the frame, hanging down. In addition, due to the weight of the door itself, the edge farthest from the upper pivot tends to fall to the ground, forcing the door to swing on its plane, like a sort of pitch.

This operation involves disarming the door which normally remains locked in the position in which the edge fits into the ground.

Due to the swinging of the door in its lying plane, the two electromagnets of the abatement device are no longer aligned and therefore it is no longer possible to restore the initial condition with the electromagnet remaining associated with the frame which cannot go to fish out the other electromagnet associated with the leaf.

The intervention of specialized personnel is therefore necessary to manually restore the initial condition, without the possibility, however, of automating the operation.

Because of this, given that a manual rearming of the door is necessary, access to the room remains free to anyone as long as the automatic door is not restored, with all the consequences of the case, in particular related to safety issues. .

Therefore, when the abatement device is activated at night, it is necessary that a security guard, a night watchman, a security officer or personnel in charge, intervene promptly.

Furthermore, to rearm the door in some cases it is necessary to call specialized personnel, increasing the maintenance costs as well as the waiting time for the restoration of normal operation of the door, creating serious problems and in some cases interruptions of services useful to citizens, especially during the closing hours of the restaurant.

In addition to this, there may also be serious problems from the point of view of public order as, once the door is broken down, the disarmed door or leaves are not stable and may affect the evacuation of the premises.

Furthermore, in the situation just described, the disarmed door, being partially connected to the support frame, can cause safety problems for users by continuing to partially block the transit passage, for example by complicating the escape of people from inside the room towards the outside.

The aim of the invention is to eliminate the aforementioned drawbacks in known types of automatic door with push opening, particularly for accesses that can also be used as emergency exits, which allows the normal operating condition to be restored in a short time and without intervention of skilled workers.

Within the scope of the aforementioned aim, an object of the invention is to automate the restoration of normal door operation, so as to eliminate the intervention of personnel.

Another object of the invention is to provide an automatic door with push opening, particularly for accesses that can also be used as emergency exits, which is reliable and has the characteristics that the current safety legislation requires.

Another object of the invention is to prevent the door from hindering the escape routes in the event of being knocked down, hindering the exit from the room.

Not least object of the invention is to provide an automatic door with push opening, particularly for accesses that can also be used as emergency exits with means easily available on the market as well as using commonly used materials, so that the device is economically competitive and can be installed anywhere. .

This aim and the other purposes are achieved by an automatic door with push opening, particularly for accesses that can also be used as emergency exits according to the invention, comprising a support frame defining a transit passage and having means for moving at least one leaf. connected to motor means and thrust means for opening said at least one leaf in emergency, characterized in that said at least one leaf comprises a removable part and a part integral with said support frame, said removable part being hinged around to an axis of rotation lying on the plane defined by said transit passage.

Further characteristics and advantages of the invention will become clearer from the description of a preferred but not exclusive embodiment of the automatic door with push opening, particularly for accesses that can also be used as emergency exits, illustrated for illustrative and non-limiting purposes with the aid of the units. drawings in which:

Figure 1 is a view of the roto-translating automatic door, in elevation, in the closed position; Figure 2 illustrates the roto-translating device, in the closed position, in section II-II;

Figure 3 illustrates an enlarged detail of the previous figure;

Figure 4 illustrates a section orthogonal to the ground of the roto-translating automatic door; Figure 5 illustrates a detail of the section of the previous figure;

figure 6 shows an enlarged detail of the means for rotating the roto-translating device, in plan;

Figure 7 illustrates a section of the thrust means;

figure 8 represents the linear sliding automatic door, in elevation, in the closed position;

Figure 9 illustrates the linear sliding device, in the closed position, in section IX-IX;

Figure 10 represents the linear sliding device raised, in an emergency position with the removable part of the door open; Figure 11 illustrates the linear sliding device, in the emergency position, in section XI-XI;

figure 12 represents an alternative solution of an automatic roto-translating door, with the removable part of the revolving door on hinges;

Figure 13 represents an alternative solution of an automatic linear sliding door, with the removable part of the revolving door on hinges.

With reference to the aforementioned figures, the automatic door with push opening, particularly for accesses that can also be used as emergency exits, according to the invention, which is identified in its entirety with the reference 1, comprises a support frame 2, which defines a transit passage 40 and has means for moving at least one leaf 3 connected to motor means.

The door 1 also includes thrust means 8 for the emergency opening of the door which free the rotation of the door.

A fundamental characteristic of this door consists in the fact that the leaf 3 comprises a removable part 6 and a part 7 integral with the support frame 2, with the removable part 6 pivoted around a rotation axis 20 lying on the plane defined by the opening. transit 40 (or also the passage plane), which can be activated in rotation by means of these thrust means 8.

One embodiment can provide that the integral part 7 is constituted by a metal laminar strip.

Advantageously, the axis 20, as mentioned lying on the opening plane, is substantially vertical with respect to the ground.

Advantageously, a connecting shaft 4 is provided connected to the movement means and defining said axis 20; in many of the examples presented here (Figures 1 to 11), axis 20 coincides with the axis of symmetry of shaft 4.

The connecting shaft 4 is housed in a cylindrical seat 24 defined inside the door 3 and supports translation means of the door 3 along a translation direction 13.

Since the seat 24 does not engage the connecting shaft 4, in practice the wing 3 can rotate around the shaft 4, pivoting on the axis 20. With reference to figures 12 and 13, another embodiment may provide that the rotation is carried out with the aid of two hinges 23 for connection between the support frame 2 and the removable part 6. In this case the axis 20 is defined by the two hinges 23 around which the removable part 6 of the door 3 can rotate.

It is also possible to provide for the assembly of support bearings for the connecting shaft 4.

The automatic door, according to the invention, can be made according to the rototranslating or linear sliding type.

In the first case, the direction of translation 13 is substantially normal to the plane of positioning of the leaves in the closed position of the door. The rotation, which occurs simultaneously with this translation, normally occurs around a direction substantially orthogonal with respect to the ground.

For automatic linear sliding doors, on the other hand, the direction of translation 113 is practically parallel to the aforementioned plane of positioning of the leaves.

Advantageously, the aforementioned translation means comprise an upper toothed wheel 21 and a lower toothed wheel 25, integrally associated with the shaft 4 and meshing respectively with an upper rack 22 and a lower rack 26. Both racks 22 and 26 are fixed to the frame 2 and extend along the translation direction 13.

It is possible to mount the two toothed wheels 21 and 25 with stable connections on the shaft 4, such as for example keys.

Advantageously, the handling means comprise a carriage 5 supporting the shaft 4 and connected to the leaf 3. The carriage is also driven by the aforementioned motor means and engages on a linear guide 10, supported by the frame 2, the which develops along a translation direction 13.

With reference to Figure 5, it is possible to provide that the carriage 5 engages on the guide 10 through rollers 11 acting on a track 12 defined in the guide 10.

In the case of an automatic linear sliding door, as can be seen in figures 8, 9, 10 and 11, the linear guide defines the direction of translation indicated with the number 113.

In the case of a roto-translating door, the handling means comprise means for the rotation of the door 3, around a direction of rotation 30, during the normal operation of said door.

Said means for the rotation of the leaf 3 can comprise a rod 31 constrained to rotate around the direction of rotation 30, substantially normal with respect to the ground, and connected to the removable part 7 of the leaf 3 by means of an attachment element 33, crazy compared to auction 31 itself. The element 33, therefore, engages in rotation around the direction of rotation 30 by means of the pin 32. Furthermore, this coupling element 33, as said idle with respect to the rod 31, is however engaged on a trajectory defined by a curved slot 34 made in the frame 2.

Preferably, the motor means comprise an electric motor 9, for example connected to the electrical network, which drives a pinion 19 keyed to a drive shaft 18. The pinion drives, in its rotary movement, a belt 17 which extends along the direction 13 and which it is associated with trolley 5; the belt acts on a transmission 16 connected to the frame 2.

This means that for roto-translating doors the belt 17 extends along a direction almost orthogonal to the opening 40, while for linear sliding doors along a direction parallel to the aforesaid transit opening.

Advantageously, the thrust means 8, per se known, comprise a first electromagnet 14 fixed on the integral part 7, and a second electromagnet 15, fixed on the removable part 6, removably associated with each other.

In this embodiment, the two magnets are associated with each other by means of an electromagnetic force.

The thrust exerted by the user to open leaf 3 (or 103 in the case of linear sliding doors) in an emergency may depend on the electromagnetic force that associates the two electromagnets 14 and 15.

Normally, the calibration of the thrust is carried out by modifying the electromagnetic force that keeps the electromagnets 14 and 15 associated with each other. In this way the force that the user puts into the thrust will be sufficient to separate the two magnets 14 and 15, according to what is foreseen. the legislation in force.

Advantageously, the automatic door comprises actuation means for the handling means, such as for example a photocell 27 for detecting the passage of a user, or keys 28 to be pressed to request the opening of the transit, connected to the motor means.

Preferably, the automatic door comprises means 35 for repositioning the removable part 6 in the initial condition.

These means can comprise an arm 36, connected to the integral part (7) and to the removable part (6) and pivoting around two axes substantially normal with respect to the ground, which brings the two magnets 14 and 15 into contact with each other.

The connection of the arm 36 to activation means (automatic, timed or manual) can be provided, so as to reset the recovery times.

Alternatively, the door can be restored manually by simply rotating the removable part 6 until the two magnets 14 and 15 are again associated with each other.

With reference to figures 8, 9, 10, 11 and 13, the construction solution that provides for a linear sliding of the door is conceptually similar to that of the roto-translating door just seen.

The automatic door with linear sliding push opening, indicated with the reference number 101, particularly for accesses that can also be used as emergency exits, comprises the support frame 102 which defines a transit passage 140 and which has handling means for at least 1 leaf 103, connected to motor means. The door 101 also includes thrust means for opening the door 103 in an emergency.

A fundamental characteristic of this door 101 is constituted by the fact that the door 103 comprises a removable part 106 and a part 107 integral with the support frame: the removable part 106 is pivoted around an axis of rotation lying on the plane defined by the opening. transit 140 and can be activated in rotation by the thrust means, similarly to the roto-translating embodiment.

A further construction solution involves the construction of two hinges 123 connecting the frame 102 and the removable part 106 define this axis 120, preferably vertical with respect to the ground (see Figure 13).

Advantageously, the direction of translation 113 for the connecting shaft 104 is, as already mentioned above, substantially parallel to the plane of lay of the doors in the closed position of the door.

The shaft 104 is housed in the cylindrical seat 124 defined inside the leaf 103 and connected with translation means similar to those of the construction solution already described.

In practice, the only differences between the automatic door with push opening, particularly for accesses that can also be used as emergency exits, of the roto-translating type and of the linear sliding type, consist in the fact that in the latter embodiment a rotation of the leaf 103 and the translation direction 113 is practically normal to the translation direction 13.

Consequently, while for roto-translating doors the belt 17 extends along the direction of development of the guide 10 and therefore ultimately substantially normal to the plane of positioning of the leaves in the closed door position, in linear sliding doors the belt 117 is it develops along a direction substantially parallel to the aforesaid plane.

Also in this case, actuation means for the movement means can be provided: a photocell 127 or keys 128 for opening the transit.

During normal operation, in the presence of the user passing through the opening 40, or at his request to pass, the activation means activate the motor 9 which, through the action of the shaft 18, rotates the pinion 19 and consequently the belt 17.

The carriage 5, integrally associated with the belt 17, moves along the direction of development of the belt itself and drags the connecting shaft 4 with it, free to rotate on itself, idle, inside the seat 24.

The toothed wheels 21 and 25, both integral with the shaft 4, engage respectively with the racks 22 and 26, meshing with them.

In this way, the two wheels 21 and 25 rotate around the axis of symmetry of the shaft 4. The shaft 4, free to rotate on itself, idle with respect to the seat 24, is therefore put into rotation, thus carrying out the dragging of the leaf 3 along the translation direction 13. At the same time, the rod 31, pivoting in the direction 30 defined by the pin 32, through the element 33 associated with the integral part 7, allows the rotation of the leaf 3 along the trajectory defined by the curvature buttonhole 34.

As regards the linear sliding doors, the leaf 103 is brought into translation through the movement of the belt 117, translating along the direction 113 and which drags with it the shaft 104 free to rotate around its own axis of symmetry in the seat 124 .

In both embodiments, in the event of an emergency, when the door is locked in the closed position (for example due to a fault in the power supply of the motor means), it is possible to open leaf 3 (or 103) with a thrust, as required by safety regulations.

Once pushed with the force necessary to overcome the resistance of the detection means, the leaf 3 (or 103) remains connected to the integral part 7 (or 107) by means of the two hinges 23 (or 123), in a substantially vertical position with respect to the land, without having undergone any dismantling or even partial demolition.

It is therefore possible to return it to its initial position without having to reset it, simply by rotating it, in the opposite direction, on the two hinges 23 (or 123) around the rotation axis 20 (or 120) by means of the repositioning means 35 (or 135) , manual or automatic. From what has been described above it can therefore be seen how the invention achieves the intended aim and objects and in particular it is emphasized that an automatic door with push opening is provided, particularly for accesses that can also be used as emergency exits which makes it possible to restore the access in normal operating conditions in a short time and without the intervention of specialized and non-specialized personnel.

Having replaced the lower pin sliding on the lower guide with the handling means described, prevents the swinging of the removable part of the leaf towards the ground, allowing normal operation to be restored simply by rotating the removable part of the leaf from the outside. towards the inside of the room, i.e. in the opposite direction to the direction of the thrust.

In particular, in this way it is possible to restore the initial condition using automatic reset means (which can therefore be activated even without the presence of an operator) and thus eliminate the intervention of specialized personnel, eliminating the recovery times of normal operation.

Another advantage of the invention consists in the fact that it is possible to completely rotate the movable part of the door, even at 180 °, completely freeing the transit passage, without pitfalls for users.

Another advantage of the invention is given by the fact that the push-opening door, according to the invention, can be applied to any type of automatic door, whether it is roto-translating or linearly sliding.

Another advantage of the device, according to the invention, is given by the fact that the use of easily available means and common materials, makes this door installable in any type of access and economically competitive.

The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept.

Furthermore, all the details can be replaced by other technically equivalent elements.

In practice, the materials used, as well as the dimensions, may be any according to the requirements, provided they are consistent with the manufacturing purpose.

Claims (14)

R I V E N D I C A Z I O N I 1) Automatic door with push opening, particularly for accesses that can also be used as emergency exits, comprising a support frame (2) defining a transit passage (40) and having movement means for at least one leaf (3) connected with motor means and thrust means (8) for opening said at least one leaf (3) in emergency, characterized in that said at least one leaf (3) comprises a removable part (6) and an integral part ( 7) to said support frame (2), said removable part (6) being pivoted around a rotation axis (20) lying on the plane defined by said transit opening (40) and activated in rotation by said thrust means ( 8). 2) Automatic door, according to the preceding claim, characterized in that said axis of rotation (20) is substantially vertical with respect to the ground. 3) Automatic door, according to one or more of the preceding claims, characterized in that it comprises a connecting shaft (4) connected to said movement means, defining said rotation axis (20), housed in a cylindrical seat (24) defined inside said at least one leaf (3) and supporting translation means along a translation direction (13), said rotation axis (20) being coincident with the symmetry axis of said connecting shaft (4). 4) Automatic door, according to one or more of the preceding claims, characterized by the fact that said translation direction (13) is substantially normal to the plane in which the leaves are placed in the closed position of the door. 5) Automatic door, according to one or more of the preceding claims, characterized by the fact that said translation direction (13) is substantially parallel to the plane of positioning of the leaves in the closed position of the door. 6) Automatic door, according to one or more of the preceding claims, characterized in that said translation means comprise an upper toothed wheel (21) and a lower toothed wheel (25) integrally associated with said connection shaft (4) respectively meshing with an upper rack (22) and a lower rack (26), said upper (22) and lower (26) racks being fixed to said support frame (2) and developing along said translation direction (13). 7) Automatic door, according to one or more of the preceding claims, characterized in that said movement means comprise a trolley (5) supporting said connection shaft (4), connected to said at least one leaf (3), operated by said motor means and engaging on a linear guide (10) supported by said support framework (2), said linear guide (10) developing along said translation direction (13). 8) Automatic door, according to one or more of the preceding claims, characterized by the fact that said movement means include means for the rotation of said at least one leaf (3) during the normal operation of said door. 9) Automatic door, according to one or more of the preceding claims, characterized in that said means for the rotation of said at least one leaf (3) comprise a rod (31) pivoting on a direction of rotation (30), connected to said removable part (6) by means of an attachment element (33), said attachment element (33) being idle with respect to said rod (31) and engaging on a trajectory defined by a curved slot (34). 10) Automatic door, according to one or more of the preceding claims, characterized by the fact that said motor means comprise an electric motor (9) which drives a pinion (19), keyed on a motor shaft (18), for driving in rotation for a belt (17) acting on a transmission (16) connected to said support frame (2), said belt (17) being solidly associated with said carriage (5). 11) Automatic door, according to one or more of the preceding claims, characterized in that said thrust means (8) comprise a first electromagnet (14) fixed on said integral part (7) and removably associated with a second fixed electromagnet (15) on said removable part (6). 12) Automatic door, according to one or more of the preceding claims, characterized by the fact of comprising means for repositioning (35) of said at least one leaf (3) in the initial position. 13) Automatic door, according to one or more of the preceding claims, characterized in that said repositioning means comprise an arm (36) connected on one side to said integral part (7) and from the other to said removable part (6), pivoting around two axes substantially normal to the ground and connected to activation means. 14) Automatic door, according to one or more of the preceding claims, characterized in that it comprises activation means for said movement means.