DE102014007197B4 - Gear for panic door lock - Google Patents

Abstract

Gear (1) for panic door lock (3), comprising - a base plate (101) which has a support plane (A) for resting on a door, the support plane (A) denoting the underside of the base plate (101), - two by two Side parts (10101a, 10101b) arranged on opposite sides of the base plate (101) and extending perpendicularly away from the support plane (A), - a square receptacle (103) rotatably mounted in a guide sleeve (10103) of the base plate (101), the axis of rotation of which is perpendicular to the support plane (A), - a reversing lever (105) which is rotatably mounted on a bolt (107) between the side parts (10101a, 10101b) and has a pivot angle α, - a return spring (10501) mounted on the bolt (107) ) for the reversing lever (105), - a lever arm (109) connected to the reversing lever (105), - at least one slide (111) for transferring the pivoting movement of the reversing lever (105) by means of the lever arm (109) into a rotary movement of the square receptacle ( 103), - a gear cover (113) with a recess (11301) for the reversing lever (105) and at least one opening (10105) in the base plate (101) which extends to the support plane (A) and extends in the longitudinal direction of the base plate (101) , wherein the at least one opening (10105) extends from the support plane (A) into the side part (10101), the lever arm (109) protruding into the at least one opening (10105) and the at least one slide (111) at least partially is guided in the at least one opening (10105), two openings (10105a, 10105b) being provided in the base plate (101), which are arranged parallel to one another in the edge region of the base plate (101).

Description

The present invention relates to a transmission for a panic door lock and the panic door lock itself.

Panic door locks are used to quickly exit rooms or buildings at risk and are used on appropriate escape doors or panic doors.

One embodiment of panic door locks known from the prior art is constructed in such a way that it has an actuating element (a so-called panic bar) which extends over a large part of the door width and to which lateral swivel arms are attached. When actuated, the actuating element is pressed in a pivoting movement in the direction of the door. This pivoting movement of the actuating element must be converted into a rotary movement of a square receptacle (a so-called nut) because the lock is coupled and opened via this square receptacle by means of a so-called handle pin. For this conversion of the pivoting movement into a rotary movement of the square receptacle, gears are often used which can be designed in different ways.

A corresponding example of a corresponding fitting is disclosed DE 83 28 207 U1 , in which a panic bar handle fitting for operating door locks is described. This has a handle bar extending approximately over the width of the door leaf, which is held at both ends on levers which are each pivotably mounted on a lower plate that can be attached to the door leaf side. The handle bar can be pivoted against a spring force onto a contact plane. A movable closing part of the lock can be connected in a geared manner via a spring-loaded toothed rack and a toothed wheel nut that meshes with it. The levers reach through cover plates, which form a housing-like door fitting plate. The two levers are each held on a lower plate via a pivot bearing, one bearing part of which can be pivoted to another in addition to a rotational movement in a spherical angular range.

Another corresponding example of a transmission is shown in DE 10 2005 029 452 A1 described, according to which the transmission has a base element with guide sleeve, a square socket rotatably mounted in the guide sleeve, a coupling element for connection to a handle and transmission elements for converting a movement component of the coupling element into a rotary movement of the square socket. The guide sleeve, coupling element and transmission elements are arranged in a special geometry to one another.

In GB 390 952 A a panic lock is described in which members that couple the bolt with an actuating disk rotating in the door plane or in a plane parallel to it move into or just above a dead center position so that the bolt cannot be pushed back from the outside. A push rod carries an arm that cooperates with a hinge to rotate a disc. In the fastening position, the inner end of a link can bear against a segment-shaped projection on the housing in order to limit the rotation of the disc. The attachment can be operated from the outside by a button that can be locked or disabled by a key.

Gearboxes for panic door locks are subject to various requirements. The required force on the operating rod to open the door should be as low as possible so that children and the elderly can open the panic door quickly and easily in an emergency. According to DIN EN 1125 (April 2008 edition) a maximum opening force of 220 N at 1,000 N pressure on the door or 80 N without a load on the door is specified. According to the prior art, these opening forces are often implemented in such a way that panic door locks are used with a large pivot angle.

However, the solutions known from the prior art have some disadvantages. To ensure such a large swivel angle, the handle bar must protrude very far from the door leaf. Large-volume gears are also used to ensure smooth operation. Opening the panic door takes longer due to the fact that a larger pivoting angle is exceeded, which is particularly undesirable in the event of a panic. In addition, the greater distance between the handle bar and the door leaf can cause problems when opening the panic door.

Depending on the installation situation, the panic door lock, or its gear and / or handle bar for single-leaf doors can hit the door frame or for double-wing doors on the passive leaf or the handle bar of the passive leaf if both sides are opened. This can happen in particular if framed doors with very narrow frames are used and the square mount of the lock is located near the front of the door, i.e. if the doors have a small backset or if the door leaves are narrow. However, such a bump must be avoided at all costs, as in the worst case it can block the panic door and thus render it inoperable.

Further disadvantages of a handle bar protruding far from the door leaf are the risk of injury from bumping into or getting stuck, as well as a visually clearly impaired appearance, especially in the case of high-quality doors in representative rooms.

Based on the above-mentioned disadvantages of the prior art, the present invention is based on the object of creating a gear for a panic door lock and a panic door lock with which it is possible to reduce the overhang as much as possible and also with narrow frame constructions of the panic door to ensure problem-free opening, while at the same time opening the panic door is ensured as quickly as possible with a small pivoting movement.

• - eine Grundplatte, die eine Auflageebene zur Auflage auf eine Tür aufweist, wobei die Auflageebene die Unterseite der Grundplatte bezeichnet,
• - zwei an zwei gegenüberliegenden Seiten der Grundplatte angeordnete Seitenteile, die sich senkrecht von der Auflageebene weg erstrecken,
• - eine in einer Führungshülse der Grundplatte drehbar gelagerte Vierkantaufnahme, deren Drehachse senkrecht zur Auflageebene steht,
• - einen Umlenkhebel, der drehbar auf einem Bolzen zwischen den Seitenteilen gelagert ist und einen Schwenkwinkel α aufweist,
• - eine auf dem Bolzen gelagerte Rückholfeder für den Umlenkhebel,
• - einen mit dem Umlenkhebel verbundenen Hebelarm,
• - zumindest einen Schieber zur Übertragung der Schwenkbewegung des Umlenkhebels mittels des Hebelarms in eine Drehbewegung der Vierkantaufnahme,
• - eine Getriebeabdeckung mit einer Aussparung für den Umlenkhebel und
• - zumindest eine Öffnung in der Grundplatte, die bis zur Auflageebene reicht und sich in Längsrichtung der Grundplatte erstreckt, wobei die zumindest eine Öffnung von der Auflageebene bis in das Seitenteil hinein reicht,

wobei der Hebelarm in die zumindest eine Öffnung hineinragt und der zumindest eine Schieber zumindest teilweise in der zumindest einen Öffnung geführt ist.This object is achieved in a first aspect of the present invention by a gear mechanism for a panic door lock, comprising

• - A base plate which has a support plane for resting on a door, the support plane denoting the underside of the base plate,
• - two side parts arranged on two opposite sides of the base plate, which extend perpendicularly away from the support plane,
• - a square mount rotatably mounted in a guide sleeve of the base plate, the axis of rotation of which is perpendicular to the support plane,
• - A reversing lever which is rotatably mounted on a bolt between the side parts and has a pivot angle α,
• - a return spring mounted on the bolt for the reversing lever,
• - a lever arm connected to the reversing lever,
• - At least one slide for transferring the pivoting movement of the reversing lever by means of the lever arm into a rotary movement of the square receptacle,
• - A gear cover with a recess for the reversing lever and
• - At least one opening in the base plate, which extends as far as the support plane and extends in the longitudinal direction of the base plate, the at least one opening extending from the support plane into the side part,

wherein the lever arm protrudes into the at least one opening and the at least one slide is at least partially guided in the at least one opening.

Due to the at least one opening, it is possible, compared to constructions according to the state of the art, to extend the lever arm into this opening almost to the surface of the panic door, so that it engages with the slide there and the pivoting movement of the reversing lever is increased (i.e. longer ) Translates linear movement of the slide than can be realized in the prior art. This linear movement of the slide is then converted into a rotary movement of the square mount. With the arrangement according to the invention, significantly improved ratios with regard to the leverage forces and travel ranges of the transmission are achieved compared with the prior art. Furthermore, the overall installation height of the transmission can be reduced.

In the present invention, the term “support plane” essentially refers to the underside of the gear, i.e. the underside of the base plate, which forms the interface with a door leaf or a surface of a tubular frame door.

The base plate and the side parts arranged on their opposite sides can preferably be formed in one piece, in particular as a stamped or lasered and folded sheet metal. The deflection lever and the lever arm connected to it can preferably also be made in one piece, for example as a metal cast part.

Opposite each other, the side parts have an opening into which the bolt is inserted so that it forms an axis of rotation for the reversing lever. A return spring is also provided on the bolt to hold the reversing lever in its rest position. The return spring must be dimensioned in such a way that, in addition to the reversing lever, it also carries a swivel arm provided at the outer end of the reversing lever and at least partially a handle bar arranged horizontally on the swivel arm. This means that the return spring must be dimensioned in such a way that the weight of the reversing lever with swivel arm and handle bar does not lead to the panic door opening unintentionally.

The slide is slidably mounted in the base plate and at least partially in the opening and has one end (ie the lower end) in frictional contact with the lever arm of the reversing lever. At its other end (ie the upper end) the slide is in frictional contact (directly or indirectly) with the square receptacle. The square socket always rests on the slide and is connected to the lock socket of the panic lock by means of a square pin. This lock nut in the panic lock is in turn with a spring, the so-called pusher retaining spring, is applied.

The gear cover is mainly used to protect the gear from foreign bodies and mechanical damage, as well as to protect people from injuries. It also serves to position and guide the locking cylinder of the panic lock. In addition, the gear cover fulfills an aesthetic function.

In an advantageous development of the transmission according to the invention, the pivot angle α is between 16 ° and 21 °, preferably 16 °. Thus, the pivot angle α is smaller than comparable angles in the prior art, due to the inventive arrangement of the opening with the slide sliding therein and the lever arm of the reversing lever engaging with it, an at least equally large linear movement and thus an equally large angle of rotation of the square receptacle is achieved. This angle of rotation is preferably between 30 ° and 40 °, preferably 30 °.

In order to achieve a more uniform mechanical load on the transmission according to the invention, it is provided according to the invention that at least one opening is provided in the base plate. Here two parts of the lever arm of the reversing lever engage in two opposite parts of the slide. One-sided jamming of the slide and / or the lever arm can thus be avoided. Furthermore, depending on the type of installation, the square holder can be controlled, i.e. rotated, from both sides via the slide, so that it is possible to use the gear for left and right locks.

The transmission according to the invention preferably has an overall height H of less than 50 mm, preferably less than 40 mm, in particular 38 mm. As described in the introduction, problems arise again and again with the constraint between gears according to the prior art and the door frame or a second door leaf. With the low overall height provided according to the invention H but the effective length of the handle bar can be increased, since the constraint is significantly reduced. Nevertheless, the free space between the surface of the panic door and the handle bar remains at least 25 mm even at the narrowest point, so that in the DIN EN 1125 (April 2008 edition) is adhered to.

As stated above, a relatively large-sized return spring is provided for the reversing lever. If the reversing lever (together with its connected elements) is released from the position actuated against the spring force of the return spring, it quickly strikes back into its rest position, i.e. against corresponding stops provided on the base plate. In addition to an annoying and unpleasant noise, the mechanical stress on the stops and the entire base plate in particular can have a disadvantage.

It is therefore provided in a further development of the invention to arrange at least one damping element between the side parts in such a way that the reversing lever rests against it in its rest position.

The damping element is preferably formed from one or more O-rings made of a material absorbing kinetic energy, which are drawn on an axis which is provided opposite the stop of the deflection lever. In this way, adequate dampening of the kickback is achieved.

• - ein erfindungsgemäßes Getriebe, wie es vorstehend beschrieben wurde, das auf der Schlossseite der Paniktür angeordnet ist,
• - ein Lager, das auf der Anschlagseite der Paniktür angeordnet ist,
• - einen getriebeseitig angeordneten Schwenkarm,
• - einen lagerseitig angeordneten Schwenkarm und
• - eine zwischen den Schwenkarmen im Wesentlichen horizontal angeordnete Griffstange.

The above-mentioned object is achieved in a second aspect of the present invention by a panic door lock which comprises

• - a transmission according to the invention, as described above, which is arranged on the lock side of the panic door,
• - a bearing, which is arranged on the hinge side of the panic door,
• - a swivel arm arranged on the gearbox side,
• - A swivel arm arranged on the bearing side and
• - A handle bar arranged essentially horizontally between the swivel arms.

The panic door lock has essentially the same advantages as the transmission included in it. In comparison to the prior art, it is particularly advantageous that a relatively short actuation path of the handle bar in the direction of the panic door, i.e. a relatively small pivoting movement of the reversing lever, can be converted into a larger (i.e. longer) linear movement of the slide to rotate the square mount. As a result, compared to conventional panic door locks, significantly improved ratios with regard to the leverage forces and travel of the transmission are achieved. Furthermore, the overall installation height of the transmission can be reduced.

The transmission according to the invention preferably has an overall height H of less than 50 mm, preferably less than 40 mm, in particular 38 mm. As described in the introduction, problems arise again and again with the constraint between gears according to the prior art and the door frame or a second door leaf. With the low overall height provided according to the invention H but the effective length of the handle bar can be increased, since the constraint is significantly reduced. Even so, the clearance between the surface of the door and the handle bar remains with that in the DIN EN 1125 (April 2008 edition) laid down by at least 25 mm.

It is preferred for the panic door lock according to the invention that the protrusion of the handle bar is at most 100 mm, in particular at most 90 mm. The overhang corresponds to the dimension W. according to DIN EN 1125 (April 2008 edition). Compared to panic door locks known from the prior art, this protrusion can be significantly reduced. The free space between the support plane and the handle bar is preferably at least 25 mm even at the narrowest point when pressed.

In particular, by reducing the overall height H of the transmission, the panic door lock according to the invention can be used up to a backset of 30 mm. That means, for example, panic doors based on tubular frame doors with a necessarily small backset, which up to now could only be provided with a panic door lock with great difficulty, can be brought up to date by the panic door lock according to the invention.

Escape doors on which panic bars are used are often designed as fire and smoke protection doors. In order to find the escape doors in the dark and when there is a lot of smoke, they are marked as such above the door with appropriate escape door symbols. The disadvantage is that the escape door is marked as such, but not the corresponding handle for actuating it (door handle or actuating element) in order to be able to open the door quickly. This can lead to critical loss of time when fleeing the endangered rooms.

The panic door lock according to the invention is therefore designed in a preferred embodiment in such a way that at least one information element is arranged on the handlebar, preferably on the half of the handlebar on the gearbox side. With this information element it is possible to open the "correct" side of the panic door immediately, i.e. the lock side.

In an advantageous further development of this embodiment, the at least one information element is self-luminous. In this context, self-luminous means that the information element charges up in daylight or when the electric light is switched on and emits the absorbed energy again in the dark in the form of lights. Thus, regardless of a power supply that may be out of order in an emergency, an orientation aid in the dark or for example smoke is ensured.

• 1 eine schematische Seitenansicht eines erfindungsgemäßen Getriebes 1 nach einer Ausführungsform der Erfindung,
• 2 eine schematische Perspektivansicht des in 1 dargestellten Getriebes 1 von der Auflageebene A her,
• 3 eine schematische Draufsicht des in 1 und 2 dargestellten Getriebes 1 von vorne,
• 4 eine schematische Perspektivansicht des in 1 bis 3 dargestellten Getriebes 1 von schräg vorne und
• 5 eine schematische Draufsicht eines erfindungsgemäßen Paniktürverschlusses 3 nach einer Ausführungsform der Erfindung.

Further goals, features, advantages and possible applications emerge from the following description of non-limiting exemplary embodiments with reference to the figures. Show it:

• 1 a schematic side view of a transmission according to the invention 1 according to one embodiment of the invention,
• 2 a schematic perspective view of the in 1 illustrated transmission 1 from the support level A. here,
• 3 a schematic plan view of the in 1 and 2 illustrated transmission 1 from the front,
• 4th a schematic perspective view of the in 1 until 3 illustrated transmission 1 from diagonally in front and
• 5 a schematic plan view of a panic door lock according to the invention 3 according to one embodiment of the invention.

In 1 is the transmission according to the invention 1 shown schematically from the side. The base plate 101 indicates the support level to the left A. on. In the foreground is the side part 10101a to see the side part 10101b lies on the back of this illustration. The opening is clearly visible 10105a in the base plate by the support plane A. up to the side part 10101a reaches into it. In this opening 10105a are the slider 111 and the square mount 103 in the guide sleeve 10103 shown. At the bottom of the opening 10105a is the lever arm 109 in its resting position. Also are the bolt 107 and the lever in this illustration 105 concealing swivel arm 7a to recognize. The gear cover is only in the cut 113 shown.

2 shows a perspective view of the support plane A. , in which on the one hand the guide sleeve 10103 in the base plate 101 with a square mount arranged in it 103 you can see. On the other hand, the opening is clear again 10105a in the base plate 101 and the side part 10101a shown. The lever arm is arranged from bottom to top 109 in its rest position, the slide 111 and the square mount 103 . The reversing lever 105 is half hidden in the background.

A top view of the gearbox 1 is from the front 3 refer to. The base plate is in the background 101 , the side panels are only shown in section 10101a , 10101b . The reversing lever is clear here 105 on the bolt 107 with the return spring 10501 to recognize. Furthermore, it is in a guide sleeve 10103 the base plate 101 rotatably mounted square mount 103 shown, whose axis of rotation is perpendicular to the support plane A. stands.

4th represents the transmission according to the invention 1 in perspective from diagonally below the front. In addition to the lever arm which is again easily recognizable from the bottom to the top 109 , Slider 111 and square socket 103 is here especially the damping element 115 on one axis 117 shown, to the reversing lever from behind 105 , or its lever arm 109 in its rest position. The front part of the bell crank 105 is through the swivel arm 7a covered.

In the upper area of the swivel arm 7a a projection 701 can be seen, which is used in particular in the actuated position of the transmission 1 an inevitable gap between gears 1 and gear cover 113 cover so that no objects can get caught or pinched in this gap.

A schematic overview of a panic door lock according to the invention 3 gives 5 . On the left of this figure is the lock side of the panic door 5 on which the transmission according to the invention 1 is arranged. On the right side, ie on the stop side of the panic door 5 , is a simple camp 301 arranged, in addition to a pivotable mounting of the swivel arm 7b preferably another return spring for the swivel arm 7b having. Between the swivel arms 7a , 7b the handlebar is essentially horizontal 9 arranged. The swivel arms 7a , 7b are designed in such a way that, on the one hand, they provide the necessary pressure to open the panic door without hindrance 5 have, on the other hand, the greatest possible length of the handlebar 9 provide to offer wide actuation. This is the distance between the frame of the door and the swivel arm 7a , 7b a maximum of 150 mm, preferably a maximum of 120 mm, in particular a maximum of 100 mm.

On the handle bar 9 are self-illuminating information elements in the half on the gearbox side 11 shown. These notice elements 11 preferably consist of NIGHTLUX ^® , a product from Süd-Metall Beschläge GmbH, Ainring-Hammerau.

List of reference symbols

1

transmission

3

Panic door lock

5

Panic door

7th

Swivel arm

7a

Swivel arm

7b

Swivel arm

9

Handle bar

11

Clue element

101

Base plate

103

Square mount

105

Reversing lever

107

bolt

109

Lever arm

111

Slider

113

Gear cover

115

Damping element

117

Axis for damping element

301

camp

10101

Side part

10101a

Side part

10101b

Side part

10103

Guide sleeve

10105

opening

10105a

opening

10105b

opening

10501

Return spring

A.

Support level

W.

Got over

H

Construction height

Claims (9)

Gear (1) for panic door lock (3), comprising - a base plate (101) which has a support plane (A) for resting on a door, the support plane (A) denoting the underside of the base plate (101), - two by two Side parts (10101a, 10101b) arranged on opposite sides of the base plate (101) and extending perpendicularly away from the support plane (A), - a square receptacle (103) rotatably mounted in a guide sleeve (10103) of the base plate (101), the axis of rotation of which is perpendicular to the support plane (A), - a reversing lever (105) which is rotatably mounted on a bolt (107) between the side parts (10101a, 10101b) and has a pivot angle α, - a return spring (10501) mounted on the bolt (107) ) for the reversing lever (105), - a lever arm (109) connected to the reversing lever (105), - at least one slide (111) for transferring the pivoting movement of the reversing lever (105) by means of the lever arm (109) into a rotary movement of the square receptacle (103), - a gear cover (113) with a recess (11301) for the reversing lever (105) and - at least one opening (10105) in the base plate (101) which extends to the support plane (A) and extends in the longitudinal direction of the base plate (101), the at least one opening (10105) from the support plane (A) to the side part (10101) extends into it, the lever arm (109) protruding into the at least one opening (10105) and the at least one slide (111) being at least partially guided in the at least one opening (10105), with two in the base plate (101) Openings (10105a, 10105b) are provided, which are arranged parallel to one another in the edge region of the base plate (101). Gear (1) Claim 1 , the pivot angle α being between 16 ° and 21 °, preferably 16 °. Gear (1) according to one of the Claims 1 or 2 , which has an overall height H of less than 50 mm to 38 mm. Gear (1) according to one of the Claims 1 until 3 , wherein at least one damping element (115) is arranged between the side parts (10101a, 10101b) in such a way that the reversing lever (105) rests against it in its rest position. Panic door lock (3) comprising - a gear (1) according to one of the Claims 1 until 4th , which is arranged on the lock side of the panic door (5), - a bearing (301) which is arranged on the stop side of the panic door (5), - a swivel arm (7a) arranged on the gearbox side, - a swivel arm (7b) arranged on the bearing side - A handle bar (9) arranged essentially horizontally between the swivel arms (7a, 7b). Panic door lock (3) Claim 5 , wherein the overhang (W) of the handle bar (9) is at most 100 mm, in particular at most 90 mm, and the free space between the support plane (A) and the handle bar (9) is at least 25 mm even at the narrowest point. Panic door lock (3) Claim 5 or 6th , whereby the panic door lock (3) can be used up to a backset of 30 mm. Panic door lock (3) according to one of the Claims 5 until 7th , wherein at least one information element (11) is arranged on the handle bar (9), preferably on the gear-side half of the handle bar (9). Panic door lock (3) Claim 8 , wherein the at least one information element (11) is self-luminous.

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