• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Locking device (10) for closing a leaf (12) of a door or a window, in particular for a fire protection door, the leaf of which opens into a room that is under excess pressure in the event of a fire, or for a door with barrier-free access, the locking device (10) is set or adjustable so that the closing force exerted by it on the leaf (12) or the closing moment in exceptional operation is reduced compared to the closing force or closing moment in normal operation.
    公开号:CH712076B1
    申请号:CH00064/17
    申请日:2017-01-18
    公开日:2021-05-14
    发明作者:Huber Dirk；Reitzke Christian；Schüler Thomas
    申请人:Geze Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to a locking device for closing a wing of a door or a window, in particular for a fire door, the wing of which opens into a room that is under excess pressure in the event of fire, or for a door of barrier-free access.
    As a fire protection measure, it is common, for example, to supply a stairwell, for example by means of a smoke protection pressure system, with excess air pressure when there is a fire in a utility room. This keeps the stairwell free of smoke. However, this overpressure acts on the wings of doors that lead into the stairwell.
    The opening force with which a fire door is to be opened must often not exceed a certain value, such as 100 N on the handle. This value must also be adhered to if there is overpressure in the room into which the door opens. At the same time, however, reliable closing of the door should also be ensured without excess pressure.
    In barrier-free access, it is also often required that a door can be opened with a maximum, predetermined force, but the door still closes safely.
    It is therefore an object of the invention to provide a locking device in which the opening force can be kept low in the event of fire or for barrier-free access, but secure closing is guaranteed.
    This object is achieved by a locking device with the features of claim 1 in that the locking device is set or adjustable so that the closing force exerted by it on the wing or the closing moment in exceptional operation compared to the closing force or the closing moment in Normal operation is reduced, wherein the locking device comprises a first and a second door closer which are designed such that both door closers are effective in normal operation and only the first door closer is effective in exceptional operation.
    As a result, the opening force that is necessary to open the sash can be adapted to any existing requirements in exceptional operation. For example, in the event of a fire, if there is overpressure in the room into which the sash opens, the closing force, which is also effective due to the overpressure applied to the sash, can be compensated to such an extent that the reduced closing force of the closing device itself is added to that caused by overpressure The amount of the closing force is equal to or less than a maximum permitted opening force, for example 100 N on a handle.
    In normal operation, however, reliable closing is guaranteed. If there is no overpressure in the room into which the door opens, there is no closing force resulting from overpressure, but the closing force in normal operation is greater than in exceptional operation, in particular large enough to reliably close the sash.
    Even in exceptional operation, however, the closing force of the closing device itself and a closing force resulting from excess pressure can jointly be sufficiently dimensioned that the door closes reliably even in exceptional operation. In the case of a fire door, this is often even necessary so that in the event of a fire there is no permanent large pressure drop across the door. In this way, the overpressure can be better maintained in the entire stairwell.
    In the case of barrier-free access, according to the invention, the closing force can be reduced in an exceptional operation, in particular at the request of a user, in order to facilitate opening of the sash, but remain unchanged in normal operation in order to ensure secure closing.
    The wing can also be designed as a wing of a door of barrier-free access that opens into a room that is under excess pressure in the event of a fire.
    In the context of this application, the closing force should also be understood as a corresponding closing moment and vice versa.
    The locking device comprises a first and a second door closer. Both door closers are effective in normal operation and only the first door closer is effective in exceptional operation. Door closers represent a simple and readily available component, which is why the locking device can be produced particularly easily and inexpensively with two door closers, the variety of parts being kept low.
    To switch between normal operation and exceptional operation, the first door closer and the second door closer can be decoupled and coupled again. As a result, one of the door closers can optionally be switched off by decoupling and switched on again by coupling. The adjustability of the closing force of the closing device can thus be brought about by simple coupling and decoupling, in particular in such a way that a previously defined closing force acts in normal operation and a previously defined, lower closing force of the closing device itself acts in exceptional operation.
    In one embodiment, the first door closer and the second door closer can only be coupled when the wing is closed. This can increase the safety for the user of the door, since the second door closer cannot be coupled in during an opening process and the closing force cannot suddenly be increased.
    According to a development of the invention, the first and second door closers are coupled in normal operation and decoupled in exceptional operation. The second door closer can thus be switched off if necessary, which is technically easy to accomplish, but effectively ensures at least two different, in particular selectable, closing force levels of the closing device.
    To couple the first door closer to the second door closer, an electrical coupling is provided, for example. This represents a simple type of coupling and enables good controllability and adjustability.
    In one embodiment, the electrical coupling couples the door closer when the coupling is supplied with electrical energy. This means that the door closers are decoupled and, in particular, the closing force is reduced when there is no electrical energy supply. If a power supply is interrupted in the event of a fault, the door can still be opened with little opening force and thus, for example, an unhindered escape. This embodiment therefore represents a fail-safe solution that is particularly suitable for fire doors.
    Alternatively, however, the electrical coupling can also decouple the door closer when the coupling is supplied with electrical energy. This means that in the event of a fault, i.e. without electrical energy, at least effective closing is guaranteed, which may be necessary in certain areas of application, e.g. when used in rooms in which hazardous substances are stored and which should therefore remain securely closed.
    The electrical coupling can alternatively or additionally also as a result of a signal from a smoke protection pressure system and / or an actuating device of a barrier-free door, couple or decouple the electrical coupling.
    The locking device can be designed so that the second door closer, in particular only, is effective when it is coupled to the first door closer, whereby a closing force of the second door closer can simply be switched on.
    In a further embodiment, a preload in the second door closer is set in a coupling process of the first door closer with the second door closer.
    The preload serves to ensure a locking force according to the standard requirement. This is done in that the axis of rotation of the door closer in the closed position is acted upon with a few degrees of rotation angle by the connecting element to the frame or door leaf during assembly. Therefore, during a coupling process of the first door closer to the second door closer, a preload is generated in the second door closer. The preload corresponds in particular to more than 2%, advantageously approximately 5%, the axis angle of the second door closer.
    In yet another embodiment, an actuating device, in particular a button or a proximity sensor, is provided, through whose actuation the exceptional mode can be selected and / or requested. In particular, when requested by a user, for example, the exception mode can be initiated and the closing force can thus be reduced. This further improves usability, especially for physically handicapped users.
    Alternatively or additionally, a time switch can be provided by means of which normal operation can be selected after a predetermined time. As a result, the locking device is reliably returned to normal operation. In this case, however, the closing force reduction of the exceptional mode preferably does not stop at least as long as the sash is outside a closed position, as the sash is within a predetermined opening angle range and / or as a proximity switch signals a person in the area of the sash.
    Further embodiments of the invention are specified in the dependent claims, the description and the figures.
    The invention is explained in more detail below with reference to the schematic drawing: FIG. 1 shows a door with a locking device according to the invention.
    In Fig. 1, a wing 12 of a door hinged on the right is shown, the invention can also be used for left hinged wings. The door is a fire protection door, the wing 12 of which opens into a room that is under overpressure in the event of a fire. If the room is a stairwell that can be supplied with overpressure, e.g. of the type described at the beginning, the viewer in Fig. 1 is standing in this stairwell and the door opens into the stairwell or towards the viewer.
    The door of FIG. 1 can, however, alternatively or additionally be designed as a door for barrier-free access. For example, in addition to the representations in FIG. 1, a button can be provided, upon actuation of which the closing device 12 assumes an exceptional mode and reduces the closing force.
    The wing is attached to a wall surrounding the door via an upper band 6 and a lower band 8 and has a door handle 22. A door closing device 10 is arranged on the leaf 12 of the door and comprises a first door closer 14 and a second door closer 16, the door closers 14, 16 being fastened on the leaf 12 of the door. A locking arm 20 is coupled to the first door closer 14 and supports the door locking device 10 against the wall surrounding the door.
    Between the first door closer 14 and the second door closer 16, an electrical coupling is provided which is provided for coupling or decoupling the door closers 14, 16. In particular, during the coupling, a shaft of the second door closer 16 is coupled to a shaft of the first door closer 14, the shaft of the first door closer 14 being permanently coupled to the lock arm 20.
    In normal operation, the door closers 14, 16 are coupled and jointly exert a closing force on the leaf 12 of the door, the wall over the locking arm 20 serving as a counter bearing. In normal operation, a relatively high closing force of the door locking device 10 acts alone, which does not exceed 100 N on the door handle 22. In particular, the respective closing force of the door closers 14, 16 is the same. If the second door closer 16 is now decoupled from the first door closer 14 and thus also from the closing arm 20 in exceptional operation, the second door closer 16 is ineffective, so that, apart from, for example, a closing force resulting from overpressure, only the closing force of the first door closer 14 is open the leaf 12 of the door acts. The remaining closing force of the closing device 10 itself and the closing force triggered by overpressure do not together exceed 100 N on the door handle 22. In the event that both door closers 14, 16 have the same respective closing force, the closing force of the half of the normal operation is effective in exceptional operation Locking device itself.
    List of reference symbols
    6 upper band 8 lower band 10 locking device 12 wing 14 first door closer 16 second door closer 18 coupling 20 locking arm 22 door handle
    权利要求:
    Claims (11)
    [1]
    1. Closing device (10) for closing a leaf (12) of a door or a window, in particular for a fire protection door, the leaf (12) of which opens into a room that is under excess pressure in the event of a fire, or for a door of barrier-free access,characterized,that the closing device (10) is set or adjustable in such a way that the closing force exerted by it on the leaf (12) or the closing moment in an exceptional mode is reduced compared to the closing force or the closing moment in normal operation, the closing device (10) a first and a second door closer (14, 16) which are designed such that both door closers (14, 16) are effective in normal operation and only the first door closer (14) is effective in exceptional operation.
    [2]
    2. Locking device (10) according to claim 1,characterized in thatthe first door closer (14) and the second door closer (16) can be coupled to one another.
    [3]
    3. Locking device (10) according to claim 2,characterized in thatthe first door closer (14) and the second door closer (16) can only be coupled when the leaf is closed.
    [4]
    4. Locking device (10) according to one of claims 2 to 3,characterized in thatthe first and second door closers (14, 16) are designed such that they are coupled in normal operation and decoupled in exceptional operation.
    [5]
    5. Locking device (10) according to one of claims 2 to 4,characterized in thatan electrical coupling (18) is provided for coupling the first door closer (14) to the second door closer (16).
    [6]
    6. locking device (10) according to claim 5,characterized in thatthe electrical coupling (18) couples the door closers (14, 16) when the coupling (18) is supplied with electrical energy.
    [7]
    7. locking device (10) according to claim 5,characterized in thatthe electrical coupling (18) decouples the door closers (14, 16) when the coupling (18) is supplied with electrical energy.
    [8]
    8. Locking device (10) according to one of claims 2 to 7,characterized in thatthe second door closer (16) is effective when it is coupled to the first door closer (14).
    [9]
    9. Locking device (10) according to one of claims 2 to 8,characterized in thatthe locking device is designed such that when the first door closer (14) is coupled to the second door closer (16), a preload is set in the second door closer (16).
    [10]
    10. Locking device (10) according to one of the preceding claims,characterized in thatan actuating device, in particular a button, is provided, the actuation of which can be used to select and / or request the exception mode.
    [11]
    11. Locking device (10) according to one of the preceding claims,characterized in thata timer is provided by which normal operation is selected after a predetermined time.
    类似技术:
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    CH712076B1|2021-05-14|Locking device.
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    LU100181B1|2018-10-30|Device for limiting the maximum pivoting or tilting angle of a window and door leaf
    EP2467549A2|2012-06-27|Component, in particular a window or door, having a closing apparatus
    DE202019001416U1|2020-06-15|Extended magnetic door | locking system
    DE202017003869U1|2017-09-20|Door closers; Fire protection closure
    LU100071B1|2018-09-28|Fastening device for fastening a functional device to a window or a door
    DE4437179C1|1996-03-07|Lifter for a window or door leaf
    DE102011118582A1|2013-05-08|Device for operating door in home, has pivotal lever which abuts against fold or stop bar when closing door, and spacer elements are stamped on lever reciprocally and are arranged at pivotal lever holder on sliding face of lever
    DE102016116646A1|2018-03-08|Door with latch
    DE102017109242A1|2018-10-31|Automatic ventilation system
    DE102013019125B4|2016-03-03|A method for bringing about a cleaning position of a wing of a folding swing window and corresponding folding swing window
    同族专利:
    公开号 | 公开日
    AT518233A3|2018-12-15|
    AT518233A2|2017-08-15|
    CH712076A2|2017-07-31|
    DE102016200630A1|2017-07-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5956249A|1993-07-19|1999-09-21|Dorma Door Controls Inc.|Method for electromechanical control of the operational parameters of a door in conjunction with a mechanical door control mechanism|
    US8225458B1|2001-07-13|2012-07-24|Hoffberg Steven M|Intelligent door restraint|
    US7234201B2|2003-07-18|2007-06-26|Jackson Corporation|Door closer power adjusting device|
    DE102013109815A1|2012-12-12|2014-06-12|Dorma Gmbh + Co. Kg|Door closer for use in e.g. smoke guard pressure unit, of stairway section of building, has two upper and lower door closure units located on base plate, and upper door closure unit equipped with arresting device and free-wheel clutch|
    法律状态:
    2019-06-28| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: BAHNHOFSTRASSE 23, 6300 ZUG (CH) |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102016200630.4A|DE102016200630A1|2016-01-19|2016-01-19|closing device|
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