EP2594723B1 - Safety door in burglary inhibiting design - Google Patents

Description

introduction

• einer in dem Flügel angeordneten Einlage aus einem Hartstahl und/oder
• einem Füllungselement in Form einer Verglasung aus einem Verbund aus mindestens vier jeweils miteinander verbundenen Scheiben aufweist, von denen mindestens zwei Scheiben aus Glas und mindestens zwei Scheiben aus Polycarbonat bestehen, und/oder
• einem Füllungselement in Form eines undurchsichtigen Paneels mit mindestens einer Schicht aus einem Hartstahl und/oder
• einem Füllungselement in Form eines Gitters mit einer Mehrzahl von vorzugsweise horizontal verlaufenden Gitterstäben, die einen L-förmigen Querschnitt besitzen und jeweils mit einer Firstlinie nach oben in vertikaler Ausrichtung übereinander angeordnet sind, wobei der Abstand benachbarter Gitterstäbe so gewählt ist, dass eine in vertikale Richtung gemessene Höhe eines Zwischenraums höchstens 25 mm, vorzugsweise höchstens 20 mm, beträgt und die Firstlinie eines unteren von zwei Gitterstäben oberhalb mindestens einer Basislinie des oberen von zwei Gitterstäben angeordnet ist, wobei des weiteren die Wandstärke der Profile der Gitterstäbe mindestens 3 mm, vorzugsweise mindestens 3,5 mm, weiter vorzugsweise mindestens 4 mm, beträgt,

gebildet ist, wobei der Schutzbereich ein von dem Betätigungselement betätigbares Schloss beinhaltet und sich in horizontaler Richtung neben dem Schloss über einen Falzbereich entweder bis in die Zarge oder den Blendrahmen oder im Falle einer zweiflügeligen Tür bis in den Stellflügel erstreckt und dort jeweils von mindestens einer Einlage aus Hartstahl gebildet ist.The invention relates to a security door in anti-burglary design with a frame or a frame each for anchoring to a building part and at least one rotatably mounted about a vertical axis and connected by bands with the frame or the frame wings, which has a filling element and the form-locking by means of locking elements can be locked in the frame or the frame, wherein the locking elements can be transferred by means of an arranged on an inner side of the wing actuating element from a locking position to an unlocked position, wherein the actuating element is protected in a protected area against unauthorized manipulation in the course of a break-in attempt over the entire surface, said Protective area - measured from a horizontal center axis of the actuating element from - extends at least 80 mm each up and down and has a width which is at least the width of the actuating element plus to the right and / or left corresponds to at least 50 mm, the scope of protection at least partially from

• a arranged in the wing insert made of a high-carbon steel and / or
• a filling element in the form of a glazing made of a composite of at least four respective interconnected discs, of which at least two discs made of glass and at least two discs made of polycarbonate, and / or
• a filling element in the form of an opaque panel with at least one layer of a high-carbon steel and / or
• a filling element in the form of a grid having a plurality of preferably horizontally extending bars, which have an L-shaped cross-section and are each arranged with a ridge line upwards in vertical alignment one above the other, wherein the distance of adjacent bars is selected such that one in the vertical direction measured height of a gap is at most 25 mm, preferably at most 20 mm, and the ridge line of a lower of two bars is arranged above at least one baseline of the upper of two bars, Furthermore, the wall thickness of the profiles of the bars is at least 3 mm, preferably at least 3.5 mm, more preferably at least 4 mm,

is formed, wherein the protective area includes an operable by the actuator lock and extends in the horizontal direction next to the lock on a rebate either into the frame or the frame or in the case of a two-leaf door to the sash and there each of at least one deposit made of hard steel.

Burglar-resistant security doors offer a much greater resistance to burglary than conventional or simple doors. An anti-burglary design is, for example, when the safety door meets the requirements of DIN EN 1627 and can be classified in the classes RC1 to RC6, in particular RC2 to RC4.

The actuating element arranged on the inside of the wing can in particular be a panic unlocking element which can be designed, for example, as a pivotable handle bar, displaceable push rod or as a push button of an emergency exit door.

Security doors of the aforementioned type are characterized in that the locking of the door in a locking position can be canceled by simple operation of the located on the inside of the actuator, so that the passage is released for people. Thus, in panic situations where rapid escape is of great importance, it is not necessary for persons located in the building to potentially time-bar the locking of the door by means of a key, code or the like before they can leave the building. Nevertheless, the access to the building with locked end part from the outside is not possible.

In addition, there are also doors which, in addition to the lock, which can be unlocked by means of the actuating device, are equipped with an additional electric lock case in order to achieve increased security against unauthorized intrusion from the outside, especially in the nighttime. The additional electric lock is switched off, for example, via an alarm button, a push button or from a gate, if a person wants to leave the building through the security door to the outside. nevertheless At times of public traffic this additional electric lock is often permanently disabled to allow rapid and unhindered escape of people in the building in case of panic.

In terms of burglar resistance, however, the actuator is a weak point, since it is only necessary for an unauthorized intrusion into the building to create an opening in the wing of the security door from the outside, by means of suitable tools, the actuator can be actuated so that the door opens.

State of the art

From the EP 2 058 459 A1 a building closure with Panikentriegelungselement is known in which the Panikentriegelungselement is shielded on the inside by a safety device, for example in the form of an angled protective strip, so that an unauthorized manipulation of Panikentriegelungselements from the outside is not possible. In addition to the visual disadvantages, which brings the known safety device with it, it is also a disadvantage that the safety device is visible in transparent building closures from the outside, so that an intruder can make appropriate preparations to bypass the safety device.

From the DE 199 23 922 C1 If a security window or security door emerges in bullet-resistant or burglary-resistant execution. The inhibition against such attacks is achieved in particular by deposits that can be inserted into hollow chambers of the window or the door. In an overlap area between the sash and the frame massive edge strips are provided, which are attached to glare and sash.

The DE 78 03 666 U 1 describes building closures in the form of a door or a window, whereby the building closure should be bulletproof. For this purpose, corresponding inserts are provided in the frame profiles.

task

For this reason, it is an object of the present invention, a security door of the type mentioned in such a way that the burglary protection enhancing elements of the security door are not visible.

solution

This object is achieved in that the wing has a casement, which is composed of vertically and horizontally extending frame profiles and having a horizontally extending latch, which framed by frame profiles and the latch upper filling element in the form of a composite glazing of one of frame profiles and the bar partially enclosed by the bolt, wherein in the bolt a deposit of hard steel is arranged, which forms at least part of the protection area.

The fact that the actuator is fully protected in a protected area against unauthorized manipulation in the course of a burglary attempt, according to the present invention means that any gaps in the protection area - measured at least in one direction - a dimension of 15 mm, preferably 12 mm, more preferably 10 mm, must not exceed. Although gaps of this magnitude may allow an attacker to create, for example, a bore having the diameter of the aforementioned gap gauge, it does not allow the actuator to be successfully manipulated by such a bore and the door to be opened without authorization.

As a horizontal central axis of the actuating element is understood, for example, the center line of a handle handle or the center line of a pressure bar or a handle bar.

The actuating element, which is located within the protected area, is shielded "invisibly" in such a way that a burglary attempt by manipulation of the actuating element is counteracted. The fact that the deposits and materials used in the protection area for an unauthorized person are not recognizable, this can not prepare accordingly for a burglary and is not equipped with the necessary tools.

The bolt is often referred to as a fighter or fighter profile.

According to one embodiment of the invention, it is provided that the protection area - measured from the horizontal center axis of the actuating element from - extends at least 100 mm, preferably at least 150 mm, more preferably at least 250 mm, upwards and downwards.

In order to obtain an optimal tapping protection, the hard steel should have a minimum tensile strength of 500 N / mm ² , preferably of 600 N / mm ² , more preferably of 800 N / mm ² , and / or a minimum hardness of 150 HB, preferably of 180 HB, more preferably of at least 220 HB.

In addition, it may be advantageous if the bolt has an insert which extends over the entire width thereof.

In order to obtain a good burglar resistance in the field of glazing, it should have at least two panes, preferably at least three panes, more preferably four panes of polycarbonate, each connected by means of a foil or a plastic potting compound to each other or at least one further glass pane, in particular are glued.

In this case, the glazing may have a space filled with air or with gas between two panes, wherein the space is preferably bounded on both sides by a glass pane and these two panes are held by means of rotating spacers in their position to each other.

An embodiment of the invention provides that the door, in particular the wing, in particular a filling element of the wing and in particular a filling element of the wing formed by a glazing, with a detection device, preferably an alarm spider or an alarm wire, for detecting a burglary attempt is provided and that upon detection of a break-in attempt, the actuator in a home position in which the locking elements are locked, is blocked or disconnected, so that even when it is actuated, the locking elements remain locked. The disc, which is provided with the alarm spider or the alarm wire should preferably consist of safety glass, which disintegrates over a large area into a plurality of small individual pieces even with small-scale damage. For this purpose, the safety glass should be biased or at least partially biased.

With regard to the thickness of an insert and / or layer of high-carbon steel, it is advantageous if it is at least 1 mm, preferably at least 1.5 mm, more preferably at least 2 mm. However, it is also advantageous if the thickness of the insert and / or layer of high-carbon steel is at most 3.5 mm, preferably at most 3 mm, more preferably at most 2.5 mm.

A particularly good burglar resistance is achieved when the at least one insert in the frame, the frame or the control wing and an insert in the wing, preferably in the vertical frame profile overlap in a horizontal view.

In the event that bullet resistance is to be achieved in addition to burglar resistance, a combination of the insert made of a high-carbon steel with an insert made of aluminum makes sense. This combination is particularly useful when the chambers in the frame profiles have no subdivision webs and are about 10 mm deep.

When the inserts are designed as short pieces, it is particularly suitable for fixing purposes when the insert made of a high-carbon steel is inserted in a milled pocket in the aluminum insert.

A particularly good burglar resistance is also achieved when a perpendicular aligned to the door leaf level bar made of steel in a groove in a solid aluminum profile strip, which is arranged in the sash, is embedded, wherein the bar made of steel in a groove in another solid Aluminum profile strip, which is arranged in the frame, engages. The strip may consist of stainless steel or high-carbon steel, for example. The vertically aligned bar serves in particular as an optimal drilling protection, since it runs parallel to a drill used and the latter thus easily hooked. Furthermore, one can not pry open the safety door in the region of the aligned perpendicular to the door leaf level bar. The arrangement of the bar is particularly suitable for securing gaps of more than 15 mm.

embodiment

The invention becomes particularly clear with reference to the following exemplary embodiments in each case to a security door according to the invention.

Fig. 1:

eine Außenansicht einer ersten erfindungsgemäßen Sicherheitstür,

Fig. 2:

eine Innenansicht der Sicherheitstür gemäß Figur 1,

Fig. 3:

eine Innenansicht einer erfindungsgemäßen Sicherheitstür mit alternativem Betätigungselement,

Fig. 4:

eine Innenansicht einer erfindungsgemäßen Sicherheitstür mit einem zweiten alternativen Betätigungselement,

Fig. 5:

einen Horizontalschnitt im Bereich des Schlosses einer erfindungsgemäßen Sicherheitstür gemäß Figur 1,

Fig. 5a:

wie Figur 5 mit alternativ ausgebildetem Flügelrahmen,

Fig. 6:

Vertikalschnitt im Bereich des Riegels einer erfindungsgemäßen Sicherheitstür,

Fig. 6a:

wie Figur 6 mit alternativer Anordnung der Einlagen,

Fig. 7:

einen Schnitt durch einen alternativen Glasaufbau,

Fig. 8:

einen Horizontalschnitt im Bereich des Schlosses der Sicherheitstür gemäß Figur 1 mit einer Leiste aus Stahl,

Fig. 9:

wie Fig. 8 und

Fig. 10:

einen Vertikalschnitt durch eine alternative Sicherheitstür.

It shows

Fig. 1:

an external view of a first security door according to the invention,

Fig. 2:

an inside view of the security door according to FIG. 1 .

3:

an interior view of a security door according to the invention with alternative actuator,

4:

an interior view of a security door according to the invention with a second alternative actuator,

Fig. 5:

a horizontal section in the region of the lock of a security door according to the invention according to FIG. 1 .

Fig. 5a:

as FIG. 5 with alternatively formed sash,

Fig. 6:

Vertical section in the region of the bolt of a security door according to the invention,

6a:

as FIG. 6 with alternative arrangement of deposits,

Fig. 7:

a section through an alternative glass structure,

Fig. 8:

a horizontal section in the area of the lock of the security door according to FIG. 1 with a strip of steel,

Fig. 9:

as Fig. 8 and

Fig. 10:

a vertical section through an alternative security door.

In the FIG. 1 is an external view of a first inventive safety door 1 made of aluminum. The security door 1 has a wing 2 with a sash 3 of horizontal and vertical frame profiles 4 and a horizontally extending latch 5 in the middle of the wing 2. In an upper half of the wing 2 is an upper filling element 6 in the form of a laminated glazing 7 and in a Lower half of the wing 2, a lower filling element 8 in the form of an opaque panel 9 respectively bordered by the frame sections 4 and the bolt 5, wherein the bolt 5, the upper of the lower filling element 6, 8 separates.

The wing 2 is mounted on a hinge side 10 via three bands 11 on a frame 12. On the opposite side is the security door 1 with a lock 13 ( FIG. 5 ), being on the in the FIG. 1 shown outside a door fitting 14 is arranged with a simple doorknob.

The wing 2 is by means not in the FIG. 1 Locking elements shown lockable in the frame 12, the locking elements by means of an arranged on an inner side of the wing 2 Betätigungsigurselselements 15 (FIGS. FIG. 2 ) can be transferred from a locking position into an unlocked position.

Both the frame 12 and the sash 3 are composed of hollow profiles, wherein chambers of the hollow sections are equipped on their outer side A side facing with inserts 16 made of a high carbon steel. Like in the FIG. 1 clearly visible, the frame 12 is provided both on the hinge side 10 and on the lock side with two narrow vertically extending inserts 16. The casement 3 also has on the hinge side 10 and the lock side on the side facing the frame 12 towards a narrow vertical insert 16 and a wide, also vertically extending insert 16, which covers almost the entire part of the door fitting 14 on the lock side. Over the entire length of the bolt 5, three parallel inserts 16 are arranged, wherein the upper and lower insert 16 narrow and the middle insert 16 are formed wide. The exact location of the deposits 16 is in the FIGS. 5 to 6a shown.

An interior view of the security door 1 according to FIG. 1 is in the FIG. 2 shown, wherein the actuating element 15 is designed as a handle handle 17. The centerline 18 of the pusher handle 17 defines a horizontal center axis of the actuator 15 from which a guard region 19 according to the present invention should extend at least 80 mm each up and down. Furthermore, the protective area 19 according to the invention should have a width which corresponds at least to the width of the actuating element 15 plus at least 50 mm to the right and left.

The laminated glazing 7 of the security door 1 consists of a composite of six interconnected panes of polycarbonate and glass ( FIG. 5 ), the panel 9 is equipped with a layer of a high-carbon steel ( FIG. 6 ) and the wing 2 is as described above with inserts 16 made of hard steel, so that the protective area 19 the security door 1 extends over the entire wing 2 and parts of the frame 12. The glass is wholly or partially tempered tempered safety glass which is harder than float glass and difficult to saw.

In the FIG. 3 an interior view of an alternatively formed safety door 1 'is shown with a designed as a handle bar 20 actuator 15, wherein the handle bar 20 extends from the hinge side 10 to the lock side of the wing 2. The horizontal center axis of the actuating element 15 is defined here by the center line 21 of the handle bar 20. Analogous to the safety door 1 according to FIG. 1 are also in the security door 1 'of the frame 12, the sash 3 and the bolt 5 in the area of the actuating element 15 with inserts 16 made of high-carbon steel.

The in the FIG. 4 shown further safety door 1 "has a pressure bar 22 as an actuating element 15, the center line 23 defines the horizontal center axis of the actuating element 15.

The FIG. 5 shows a horizontal section in the region of the lock 13 of the security door 1 according to FIG. 1 showing the structure of the frame 12 and the sash 3 and the structure of the composite glazing 7 and the arrangement of the inserts 16. Both the frame 12 and the sash 3 consist of outer frame profiles 24, 24 'and inner frame profiles 25, 25', which are held together by insulating profiles 26. The outer frame profiles 24 are formed as hollow profiles and each have two chambers 27, in each of which an insert 16 of 1, 5 mm thick high-carbon steel is housed. The distance a between adjacent inserts 16 corresponds approximately to the spacing of the chambers 27 and is in each case smaller than 13 mm.

The composite glazing 7 consists of two disk packages each consisting of three disks, wherein between the disk packages there is a space 28 filled with gas, in which a peripheral spacer 29 is arranged. The two disk packages each comprise a polycarbonate disk 30, which is arranged between two disks 31 made of glass, wherein the respective three disks are glued to one another via a respective film arranged between the disks.

The Indian FIG. 5a horizontal section shown differs from the FIG. 5 merely with regard to the construction of the outer casement 24 ', which has three chambers 27, of which the chamber 27 located on the composite glazing 7 no deposit made of high carbon steel. An insert in the area of the laminated glazing 7 can be dispensed with since the composite glazing 7 as such already represents a high level of protection against burglary.

From the FIG. 6 is a vertical section through the in FIG. 1 shown security door 1 in the region of the bolt 5, wherein again the composite glazing 7 and the panel 9 can be seen. The panel 9 consists of an insulating layer 32 which is delimited on both sides by an aluminum plate 33 in each case. On the side facing the outside area A, the panel 9 is additionally provided with a layer of hard steel 34.

The outer latch profile 35 is formed as a hollow chamber profile with three chambers, each of which chamber is provided on its side facing the outer region A side with an insert 16 made of hard steel. Since the upper and lower chambers in the region of the laminated glazing 7 and the reinforced panel 9 run, can also be dispensed with the local deposits, which in the FIG. 6a is shown.

Another difference between the security door 1 according to FIG. 6 to the security door 1 "'according to FIG. 6a is that the security door 1 "'in accordance with FIG. 6a an upper and a lower filling element 6, 8 in the form of a composite glazing 7 has.

A glass structure for an alternative composite glazing 7 'is in FIG. 7 represented, wherein the glass structure of two identically constructed disk packages 50 composed, which are connected via a circumferential spacer 29 which closes a gas-filled gap 28 between the two disk packages 50 tight. The two disk packages 50 each consist of five disks, with disks 31 made of glass alternating with disks 30 made of polycarbonate. On the side facing the outside area A, a 6 mm thick float glass pane is arranged, followed by a 5 mm thick polycarbonate pane, a 5 mm thick float glass pane, a 5 mm thick polycarbonate pane and a 4 mm thick float glass pane. Two adjacent disks are each glued to a PUR or PVB film 51, approximately 1.25 mm thick.

In the FIG. 8 is the horizontal section of the security door 1 according to FIG. 5a shown with the modification that on the side facing the outside area A in the fold region between the frame 12 and sash 3, a bar 52 is arranged made of steel, which is aligned perpendicular to the door leaf level. The bar 52 is in a groove 53 of the Aluminum existing frame 12 is pressed and engages in a groove 54 of the existing also aluminum sash 3, so that a gearing of frame 12 and sash 3 is formed. The 3 mm thick bar 52 is additionally attached with a stainless steel pinning 55 in the groove 53 of the window frame. Alternatively, the stainless steel pinning 55 can be dispensed with, which is in the FIG. 9 is shown.

The FIG. 10 shows a final example of a safety door 200 according to the invention, which is provided with a Panikentriegelungselement in the form of a pressure bar 22, wherein a section through the lock area of the safety door 200 is shown. On the side facing the outer region A, the wing 2 of the security door 200 in the region of the lock 13 is provided with an insert 56 made of aluminum, which is designed as a short piece viewed in the vertical direction. The insert 56 made of aluminum has a thickness d of about 10 mm in its edge region and is bolted to the wing 2 for mounting purposes via a fixing screw 57 and has a pocket 58 open to the interior I, in which an inlay 59 made of high-carbon steel is accommodated. The insert 59 made of high-carbon steel is not fastened to the insert 56 made of aluminum or the wing 2 with connecting means but lies only in the pocket 58 of the aluminum insert 56, wherein the insert 59 is bounded on all four sides by the edge region of the aluminum insert is. In the event that the safety door 200 is alternatively equipped with a pusher, the hard steel insert 59 is provided for performing a screw 63 with a breakthrough 60 with a diameter of 12 mm.

On the side facing the outer area A, the safety door 200 is provided with a long plate 61, which is connected by three screws 62 to an inner plate 64 arranged below the pressure bar 22, the screws 62 being guided through the aluminum insert 56.

1, 1', 1", 1"', 200

Sicherheitstür

2

Flügel

3

Flügelrahmen

4

Rahmenprofil

5

Riegel

6

oberes Füllungselement

7, 7'

Verbundverglasung

8

unteres Füllungselement

9

Paneel

10

Bandseite

11

Band

12

Blendrahmen

13

Schloss

14

Türbeschlag

15

Betätigungselement

16

Einlage

17

Drückergriff

18

Mittellinie Drückergriff

19

Schutzbereich

20

Griffstange

21

Mittellinie Griffstange

22

Druckbalken

23

Mittellinie Druckbalken

24

äußeres Rahmenprofil Blendrahmen

24'

äußeres Rahmenprofil Flügelrahmen

25

inneres Rahmenprofil Blendrahmen

25'

inneres Rahmenprofil Flügelrahmen

26

Isolierprofil

27

Kammer

28

Zwischenraum

29

Abstandhalter

30

Polycarbonat-Scheibe

31

Scheibe aus Glas

32

Dämmschicht

33

Aluminiumplatte

34

Schicht aus Hartstahl

35

äußeres Riegelprofil

50

Scheibenpaket

51

PVB-Folie

52

Leiste

53

Nut Blendrahmen

54

Nut Flügelrahmen

55

Edelstahlverstiftung

56

Einlage Aluminium

57

Fixierschraube

58

Tasche

59

Einlage

60

Durchbruch

61

Langschild

62

Schraube

63

Schraube

64

Innenschild

A

Außenbereich

a

Abstand

l

Innenbereich

b

Abstand

h

Höhe

d

Dicke

In the figures are

1, 1 ', 1 ", 1"', 200

security door

2

wing

3

casement

4

frame profile

5

bars

6

upper filling element

7, 7 '

laminated glass

8th

lower filling element

9

paneling

10

hinge side

11

tape

12

frame

13

lock

14

door fittings

15

actuator

16

inlay

17

trigger handle

18

Centerline pusher grip

19

the scope

20

Grab bars

21

Centerline handlebar

22

pressure beam

23

Centerline pressure bar

24

outer frame profile frame

24 '

outer frame profile sash

25

inner frame profile frame

25 '

inner frame profile sash frame

26

insulating profile

27

chamber

28

gap

29

spacer

30

Polycarbonate lens

31

Glass pane

32

damp course

33

aluminum plate

34

Hard steel layer

35

outer bar profile

50

disc pack

51

PVB sheet

52

strip

53

Groove frame

54

Nut sash

55

Edelstahlverstiftung

56

Insert aluminum

57

fixing screw

58

bag

59

inlay

60

breakthrough

61

long plate

62

screw

63

screw

64

interior signage

A

outdoors

a

distance

l

interior

b

distance

H

height

d

thickness

Claims (14)

1. Safety door (1, 1', 1", 1''', 200) in burglary inhibiting design, with an architrave (40) or frame (12), in each case for anchoring to a part of a building, and with at least one leaf (2), mounted such that it can rotate about a vertical axis and connected to the architrave (40) or frame (12) via hinges (11, 39), which comprises a filling element (6, 8, 101) and which can be locked in a positive locking manner in the architrave or the frame (12) by means of locking elements, wherein the locking elements can be transferred from a locked position into an unlocked position by means of an actuator element (15) arranged on one side of the leaf (2), wherein in a protective area (19) the actuator element (15) is protected over its entire surface against unauthorized manipulation in the course of an intrusion attempt, wherein the protective area (19) - measured from a horizontal central axis of the actuator element (15) - extends at least 80 mm upwards and downwards and has a width corresponding to at least the width of the actuator element (15) plus at least 50 mm to the right and/or left, wherein the protective area (19) is formed, at least in part, by

   - an insert (16, 34, 59) arranged in the leaf (2) and made from a high carbon steel and/or

   - a filling element (6) in the form of a glazed panel (7, 7') made of a composite of at least four plates (30, 31) connected to each other, of which at least two plates (31) consist of glass and at least two plates (30) of polycarbonate, and/or

   - a filling element (8) in the form of an opaque panel (9) with at least one layer (34) made from a high carbon steel and/or

   - a filling element in the form of a grid with a plurality of preferably horizontal grid bars which have an L-shaped cross-section and are arranged with a ridge line upwards one above the other each in a vertical orientation, wherein the distance between adjacent grid bars is selected such that a height, measured in the vertical direction, of a gap is no more than 25 mm, preferably no more than 20 mm, and the ridge line of a lower of two grid bars is arranged above at least one baseline of the upper of two grid bars, wherein additionally the wall thickness of the profiles of the grid bars is at least 3 mm, preferably at least 3.5 mm, further preferably at least 4 mm,

   wherein the protective area (19) contains a lock (13) which can be activated by the actuator element (15) and which extends in the horizontal direction next to the lock (13) across a rebate area either into the architrave or the frame (12), or in the case of a two-leaf door, into the fixed leaf where it is formed by at least one insert (16, 34, 59) made of high carbon steel, characterized in that the leaf (2) has a sash frame (3) which is composed of vertically and horizontally extending frame profiles (24', 25') and has a horizontal crossbar (5), which separates an upper filling element (6), in the form of a composite glazed panel (7, 7') edged by frame profiles and the crossbar (5), from a lower filling element (8) edged by frame profiles and the crossbar (5), and the actuator (15) - viewed horizontally from an outer face of the door leaf (2) - is partially hidden by the crossbar (5), wherein in the crossbar (5) an insert (16) made of high carbon steel is arranged, which forms at least a part of the protective area (19).
2. The safety door according to Claim 1, characterized in that the protective area (19) - measured, from the central horizontal axis of the actuator element (15) - extends at least 100 mm, preferably at least 150 mm, further preferably at least 250 mm, upwards and downwards.
3. The safety door according to Claim 1 or 2, characterized in that the carbon Steel has a minimum tensile strength of 500 N/mm², preferably of 600 N/mm², further preferably of 800 N/mm², and/or a minimum hardness of 150 HB, preferably of 180 HB, further preferably of at least 220 HB.
4. The safety door according to any one of Claims 1 to 3, characterized in that the crossbar (5) has an insert (16) which extends over the entire width thereof.
5. The safety door according to any one of Claims 1 to 4, characterized in that the glazed panel (7, 7') comprises at least two plates (30), preferably at least three plates (30), further preferably at least four plates (30) made from polycarbonate, which are each connected to each other or to at least one other glass pane (31) by means of a foil (51) or a plastic moulding compound, in particular are glued together.
6. The safety door according to any one of Claims 1 to 5, characterized in that the glazed panel (7, 7') has a gap (28) filled with air or gas between two plates (30, 31), wherein the gap (28) is preferably bounded on both sides by a plate of glass (31) and these two plates (31) are held in position with respect to each other using circumferential spacers (29).
7. The safety door according to any one of Claims 1 to 6, characterized in that the door, in particular the leaf, in particular a filling element of the leaf and in particular a filling element of the leaf formed by a glazed panel, is provided with a detection device, preferably an alarm loop or an alarm wire, for detecting an intrusion attempt and that on detection of an intrusion attempt the actuator element is blocked or disengaged in an initial position in which the locking elements are locked, so that even when said actuator element is actuated the locking elements remain locked.
8. The safety door according to any one of Claims 1 to 7, characterized in that the thickness of an insert (16, 59) and/or layer (34) of high carbon steel is at least 1 mm, preferably at least 1.5 mm, further preferably at least 2 mm.
9. The safety door according to any one of Claims 1 to 8, characterized in that the thickness of the insert (16, 59) and/or layer (34) of high carbon steel is not more than 3.5 mm, preferably not more than 3 mm, more preferably not more than 2.5 mm.
10. The safety door according to any one of Claims 1 to 9, characterized in that the at least one insert (16) in the architrave (40), the frame (12) or the fixed leaf and an insert (16, 34, 59) in the leaf, preferably in the vertical frame profile, overlap in a horizontal view.
11. The safety door according to any one of Claims 1 to 10, characterized by a combination of the insert (59) made of a high carbon steel with an insert (56) made of aluminium.
12. The safety door according to Claim 11, characterized in that the insert (59) made of high carbon steel is inserted into a milled groove (58) in the insert (56) made of aluminium.
13. The safety door according to any one of Claims 1 to 12, characterized in that a bar (52) made of steel and oriented perpendicular to the plane of the door leaf is mounted in a groove (54) in a solid aluminium profile strip which is arranged in the sash frame (3), wherein the steel bar (52) engages in a groove (53) in another solid aluminium profile strip which is arranged in the frame (12).
14. The safety door according to any one of Claims 1 to 13, characterized in that gaps in the protective area (19) - measured in at least one direction - do not exceed a size of 15 mm, preferably of 12 mm, further preferably of 10 mm.

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