EP0839247A1

EP0839247A1 - Switch for a door or window fitting

Info

Publication number: EP0839247A1
Application number: EP96927517A
Authority: EP
Inventors: Hartmut Trilk
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-19
Filing date: 1996-07-19
Publication date: 1998-05-06
Anticipated expiration: 2016-07-19
Also published as: EP0839247B1; ATE230816T1; DE59610051D1; DE19680580D2; US5970759A; WO1997004203A1; AU6732296A

Abstract

PCT No. PCT/DE96/01381 Sec. 371 Date Apr. 9, 1998 Sec. 102(e) Date Apr. 9, 1998 PCT Filed Jul. 19, 1996 PCT Pub. No. WO97/04203 PCT Pub. Date Feb. 6, 1997A switch for a door or window has inner and outer handles which are both axially fixed to withdraw the locking element of any type of lock. The switch has an actuating shaft which extends between the inner and outer handles for withdrawing the locking element. The actuating shaft has overall dimensions which represent the only dimensions allowing the switch to fit into the lock. An actuating element associated with the inner handle is used to selectively set at least two states of operation of the outer handle. A transmission element inwardly linked to the actuating element extends between the inner and outer handles at least in an area of the actuating shaft that extends through the lock and within the limits of its overall dimensions. A coupling device associated to the outer handle is integrated as a closed unit into the outer handle for putting the outer handle in its selected state of operation, and in particular for selectively coupling or uncoupling the outer handle and the actuating shaft, so that the outer handle may swivel into all of its states of operation.

Description

SWITCHING DEVICE FOR A DOOR OR WINDOW FITTING

Description

The invention relates to a switching device for a door or window fitting and a door, gate or window fitting with such a switching device. Door or window fittings with means for switching between different functional states are known.

For example, turn-and-tilt fittings for windows that allow them to be opened both about a vertical and a horizontal axis of rotation or that keep the window locked are widespread.

From DE-AS 11 13 649 a door fitting is known in which the door handle can be decoupled from the associated push pin by a coupling. In a position of the coupling, this fitting allows the handle pin to be rotated and thus the door to be opened (or closed), while in a second position the door handle can be turned freely without the handle pin being rotated and the door opened (or closed) ) can be.

From DE 78 20 998 U a window fitting for pivoting sash windows is known, in which a push-button-actuated locking part is assigned to a handle that can be rotated in a shield or a rosette with a bolt-like shape for engaging in a striking plate, by means of which actuation of the handle can be prevented.

With these and other known fittings, the switchover between the functional states takes place from that side of the fitting (i.e. the door or the window) on which the switchover also has an effect.

Possibilities are also known for optionally allowing or preventing the opening of a door from one side (outside) from the other side (from the inside). In addition to the usual locks for locking a door by means of a key-operated lock bolt, the locking of bathroom or toilet doors is generally known, in which a locking bolt provided in addition to the spring-operated snap bolt (the latch) is provided behind via an internally arranged turning handle (toggle, olive) an associated striking plate is pushed, after which actuation of the outer handle causes the snap bolt to be withdrawn, but not to open the door.

When locking with a key, each time the door is passed, if this is to be kept locked, the lock is operated twice. This is the case in many practical cases - for example, for authorities that have regular public traffic, but where the entrance has to be controlled, or for stores after the store closes when customers are still in the store and enable them to leave the store must be - too cumbersome. The more employees work in a room or part of a building, the more problematic this solution becomes from an organizational and cost perspective. In addition, "self-containment" from the point of view of occupational safety and health (presence of unobstructed escape routes) and from occupational psychological considerations than to judge unfavorably.

Furthermore, especially from the entrance areas of companies, authorities, etc., door openers have long been known, the function of which is based on the electromechanically remotely retracting the abutment for the snap lock in the door frame. The main disadvantage of this solution is in the fact that their execution, in particular as retrofitting, requires a great deal of effort for the electrical installation and - in particular for security doors - the conversion of the frame.

DE-GM 1 683 917 discloses a door handle which can be locked on one side, in which the ineffectiveness of the outer latch is effected via an axial displacement of a protruding lever on the inner latch and the outer latch is fixed in the ineffective state. In this functional state, idle handling is no longer possible. However, since the outside handle is recognized by the user as a movement handle, this principle carries two dangers of accidents - on the one hand due to the lack of mobility of the outside handle in the ineffective state, on the other hand, and on the other hand due to the axial displacement of the adjusting lever relative to the door leaf , which leads to a risk of pinching.

DE-PS 670 268 describes a handle arrangement with two mutually independent handles with a sliding coupling element, the installation of which, however, requires a modification of the lock. This arrangement is therefore hardly suitable for retrofitting.

A door locking arrangement is known from US 1,090,772, in which the changeover between the functional states takes place effectively / ineffectively by means of an axially displaceable inside handle. The lack of an axial fixing of the inner handle leads to the fact that when the inner handle is actuated, a status change in the outer handle can take place. This training also entails a pronounced risk of pinching, so that the arrangement does not meet current occupational safety requirements.

From DE-GM 72 16 046 a mortise lock with two rotary handles (external / internal pawl) is known with means which ensure easier unlocking from the outside by means of the key belonging to the lock. Here too, the function is changed via an axial displacement of the palm, with the corresponding risk of accidents. In addition, in order to realize the square opening of the nut, it must have a dimension that deviates from the usual dimension, in particular it must be expanded subsequently, so that this arrangement is also unsuitable for retrofitting.

The invention is therefore based on the object of specifying a switching device of the type mentioned at the outset which is easy to operate and is safe from an occupational health and safety point of view and can be retrofitted with little effort with conventional snap locks. In particular, it should not involve any risk of jamming and require no structural changes to the door lock.

This object is achieved by a switching device with the features of claim 1.

The invention includes the idea of a completely integrated part of the fitting, without any axial displacements of externally accessible parts and without any locking. To provide changes to the frame, window frame or door lock arrangement requiring arrangement. This can be carried out universally and easily with various lock systems and avoids the risk of accidents that result from the fixing of the outer handle as well as from axially displaceable actuating elements. It thus complies with the valid approval regulations for use in public buildings and enables retrofitting in conjunction with insurance-certified door locks.

It further includes the idea of providing on the inside an actuating element assigned to the inner handle (together with the inner handle hereinafter also referred to as the "pawl"), the one with the outer handle associated with the active element (as a result of which the outer Handle is also referred to below under the term "functional pawl") is connected via a transmission element running essentially within the outer contour of the square mandrel. This in turn connects the outer handle to the actuating shaft of the bolt, i.e. with the standard snap lock on the nut with the square mandrel. The connection between the actuating element and the active element is established by means of a switchable (in particular engaging / disengaging) coupling device, which can be implemented in various configurations.

A fitting equipped with the switching device according to the invention is provided in particular for exterior and interior doors and gates and can be used in exchange for various such commercially available handles and fitting parts are used, their structural and aesthetic specifics being retained.

Different external access authorizations can be set from the inside. The decisive advantage in use of the switching and functional fitting designed in accordance with the invention is that a plurality of functions are combined in a single fitting in a manner which meets current safety and occupational safety requirements, alternative external access authorizations being able to be set from the inside and the specified security locking function of the lock system used is not changed. The switching and functional fitting works independently of the locking and locking mechanism of the lock used, the door opening not being subject to any function selection from the inside, so that the opening of unlocked doors or gates is always possible on the inside of the room.

The switch and function fitting can be used particularly advantageously in public administration buildings in rooms in which only occasional public traffic is provided. During times when there is no public traffic or all check-in areas are already occupied, the staff can block the outside access authorization from the inside of the room without using a key. The staff themselves can, however, leave the room at any time (also without having to use a key). If access is to be permitted again, an actuator is actuated from the inside of the room. operating element, and everyone can now enter the room from the outside. In contrast, it would be necessary for a room door with a conventional fitting during a phase of preventing access that the room be unlocked from the inside, the passage through the door takes place and then the door is closed again from the outside.

Further application examples can be found in many commercial and private areas, e.g. in laboratories, business premises, as child safety devices, for garden gates etc. It should be emphasized in particular that the lock system to be used is optional, so that each locking security function can be implemented from outside and inside by choosing the appropriate lock and locking system . By simply replacing an existing fitting on doors or gates, the multifunctionality can be achieved particularly cost-effectively.

In a preferred embodiment, the following three setting or functional states can be set on the switching and functional fitting from the inside of the room by setting an integrated switching element on the fitting:

Functional status A) Release: Door or gate opening possible from the outside

Functional status B) Permanent locking: door or gate opening from the outside is not possible

Functional status C) Partial locking: door or gate opening from the outside is not possible until inner pawl / rotary knob was pressed once.

In functional state A (external handle is effective), the switching and functional fitting is comparable to a conventional door fitting with an outer and an inner latch (or corresponding rotary knobs). The door is opened by actuating or withdrawing the locking element (snap lock) integrated in the lock.

In functional state B (outside handle is ineffective), the switching and functional fitting can be functionally compared with a conventional door fitting with a fixed outside knob and an inside latch. Opening from the outside is prevented by the fact that it is not possible to retract the snap bolt as a result of a decoupling between the outer handle and the actuating shaft of the snap bolt. In this state, a rotatable outside handle remains rotatable (when idling), so that there is no risk of an accident such as that which is caused by a handle which is fixed (contrary to the external appearance of mobility).

Functional state C cannot be compared to a function of conventional door fittings; it basically contains an additional preselection or memory function with regard to the two possible functional states of the outer handle. The main use of this functional state is that a person sets a temporary outside access block inside the room until he leaves the room through the outside blocked door and wants to enable himself to re-enter the room directly. In a special embodiment of the switching and functional fitting, only the states A and C on the inner fitting can be set, but not the state B, so that this is the preferred design variant for lock systems which do not provide for lock bolt retraction by key actuation and where there is therefore a risk of self-lockout in state B.

The transmission and coupling device which connects the inner actuating element and the outer active element to one another can convey the adjusting action on the basis of different physical principles; it can be designed such that the connection between the actuating and active element is established via a fluid (a hydraulic fluid, compressed air or the like) or an electrical and / or magnetic field. For most fields of application, however, mechanical means are preferred, which comprise an essentially rigid tensile and / or compressive force or torque transmission element as well as a directional lock (a "freewheel") connected to the transmission element by a tensile or compressive force or a torque. exhibit.

The transmission element can be double-acting, ie all switchovers between the function or setting states are actively communicated. This can in particular transfer both tensile and compressive force or torque in mutually opposite directions of rotation and thus the formation of the transmission link with a suitable structure and material, for example as a pull / push rod or right-hand / Left rotating sleeve, require. Alternatively, however, it is also possible to provide a torque transmission element which transmits only a tensile or only a compressive force or which acts in only one direction of rotation and, in addition to this, a resetting element which acts automatically in the opposite direction to its direction of action and in particular is designed as a spring element. In an advantageous embodiment of this type, a traction cable or strap running as a tensile force transmission element is essentially parallel to the longitudinal axis of the actuating shaft of the fitting bolt, in particular in a bore or on the circumference of the recess, or as a compressive force. Transmission link provided a correspondingly arranged push rod.

This design enables particularly easy use with commercially available standardized latch locks, the nut / latch assembly of which need not be changed at all, and with commercially available fitting systems, the mechanics, handles and lock plates or rosettes, either not or only to a minor extent need to be changed.

In an advantageous embodiment, the active element provided on the side of the outer handle has a structure which is adapted to the standardized structure of snap-lock locks and which has one or more first active surfaces, either in or out of engagement with the square mandrel for actuating the latch (s), via which there is an engagement part of the coupling device which can be moved between or at least two different positions in or out of engagement with the molded part can be connected, which in turn has a second active surface which is designed to correspond to the first active surface (for example, as a "negative" thereof).

The design of the actuating element is to be adapted to the application. In a simple, inexpensive implementation which can be operated conveniently together with a handle or a latch with one hand, the actuating element is designed as a rocker arm arranged on the handle neck or as a rotating ring surrounding the handle neck, which in particular has a common axis of rotation with that designed as a handle inner handle. The axis of rotation of the rocker arm can also form an angle with that of the pusher and can be actuated by thumb or finger pull or pressure.

In the sense of the above explanations regarding the functional or setting states A, B and C (also referred to below as "0", "II" or "I" in the description of an embodiment) is the design of the switching device for setting exactly the two functional states "effective" or "ineffective" of the outer handle as well as the provision of means for transferring to the state "effective" from the state "ineffective" solely by (one-time) actuation of the inner handle as a universally usable version prefers.

In this case, especially for fittings in which a retraction of the latch by means of a key is not possible, the actuating element can merely set the optional "active" state or the state in which can be changed to the "effective" state by actuating the inner handle. For other fittings or if an additional security unlocking function - described in more detail below - is integrated, the actuating element will have three setting options, namely for the optional setting of the "effective" state, the "ineffective" state or the ( state to be referred to as a "temporary release", in which a transition to the "effective" state takes place by actuating the inner pawl.

The provision of safety or additional switchover means, which at least unidirectionally switchover between functional states from the side of the outer handle, in particular a switchover, offers increased security against self-locking out or shackles, as well as the possibility of realizing secondary shooting functions possible from the "ineffective" state to the "active" state.

The coupling device or the actuation and transmission mechanism is preferably designed in such a way that when the switchover device is installed as the functional state of the outer handle in its basic position, the state is optionally “effective” (for a door also referred to as an “opening door”, for example an inner door ) or the "ineffective" state (in the case of a door designated as a "locking door", in particular an outer door) can be specified.

In a simple and inexpensive embodiment, the safety switching means comprise an opening in the outer Handle (or in the area of the associated rosette), via which the active element and / or the coupling device can be accessed and its position can be changed. The position can be changed, for example, by means of a ballpoint pen refill, pocket knife blade or nail file or similar parts which are not part of the switchover or fitting system and which are easily accessible emergency tools.

For a suitable combination of several of the above-mentioned functional features, the actuating and transmission mechanism in a preferred embodiment has a latching and resetting mechanism for the optional setting of a bistable functional changeover state, which actuates the actuating element when the inner handle or outside is actuated Safety release device or by moving an additional active element, in particular connected to the locking element of the lock, automatically into a basic position ("0"). With this version, the risk of self-locking or locking out is avoided by the automatic changeover when the door closes.

The use of the switchover device with doors or windows hinged on the right and left is simplified by such a symmetrical design of the coupling device, on the basis of which the switchover device can be used in the same design with doors, gates or windows hinged on the left and right. An increase in utility value by simplifying operation results from the fact that the actuating mechanism is so is trisch designed that the direction of actuation (approximately regardless of the door stop in or counterclockwise) can be selected uniformly.

A further advantageous embodiment consists in that function and setting status display means acting outwards and / or inwards are provided. An inward display can be easily created by suitable design of the actuating element itself or an adjacent display surface or the like. realize a display to the outside by a separate display element linked to the coupling device or the active element.

In addition to manual operation directly on the fitting, a remote control is provided in a particularly comfortable - but also complex - version, i.e. the actuating element has means for, in particular wireless, remote actuation. These means can in particular be formed by a conventional infrared remote control, as is known from central vehicle locking systems. The telecontrol device as a whole can also include at least parts of the coupling device, so that there can be a functional integration of the actuating element and coupling device, without the protection area of the invention, as little as through the integration of the active element in the coupling device is left.

The fitting, in which the changeover device according to the invention is used, can (to the most widely used broadly)) so that the inner and outer handles are each designed as pivots (pawl) which can be pivoted about a common horizontal axis of rotation and which are connected or connectable to an actuating shaft for a spring-operated latch as a locking element.

However, the switching device can also be used with fittings in which at least the outer handle is designed as a movable door pushing plate or a door pushing bracket which can be connected to an actuating shaft for the locking element.

For both (and other) designs, the provision of spring means that are effective regardless of the functional state for returning the outer handle to the idle state is advantageous, since a fitting equipped in this way accommodates handling habits and avoids visual irritation.

To further increase the security against burglary, it can be advantageous for some fields of application to have means on the outer handle for detecting actuation of the switching device from the outside or a destructive intervention in it or on the coupling device or the active element means for detecting the actual Function state and provide an alarm device connected to the detection means. Electrical contacts at the safety changeover opening in connection with a low-current detection device or a light barrier or the like arranged at the same location can serve this purpose. The alarm device device can be arranged directly on the fitting on the inside of the door and / or in a central monitoring point.

Advantageous further developments of the invention are characterized in the subclaims or are shown in more detail below together with the description of preferred embodiments with reference to the figures. Show it:

FIG. 1 a shows a schematic illustration of the externally visible fitting parts of a door fitting, in which a switchover device according to one embodiment of the invention is installed, in an oblique view,

FIG. 1b shows a schematic representation of the fitting parts visible inside the room and a transmitter unit of a door fitting in a variant for remote actuation modified from FIG. 1,

FIGS. 2a to 2c each show schematic cross-sectional representations (in a horizontal sectional plane perpendicular to the plane of the door leaf) of door fittings with a changeover device according to basic embodiments of the invention and

Figures 3a to 3j sectional views of a door fitting with a switching device according to an embodiment of the invention in different switching states and views, partly as detailed representations.

FIG. 1 a gives a schematic illustration of the closed position (shown in dashed lines in the detail). ter) Door 7 externally visible parts of a door fitting with a switching device according to an embodiment of the invention, seen from the inside of the door. The fitting consists of an outer lock cover 1, an inner lock cover 2, an outer functional handle, shown here as an external pawl or push button 3, an inner handle, shown here as an inner pawl 4, and a rotary lever 5 as a manual actuating element for the Actual switching device (switching element) for setting the functional state of the fitting. The fitting shown has three setting states which are displayed on a switching status display 6 on the inner lock cover, which uses the position of the rotary lever for display purposes: a state in which the outer latch is permanently active, a state in which it is permanent is ineffective, and a state in which it is ineffective, but is made effective by actuating the inner pawl (at the same time the actuating element springs back to the "effective" state).

Figure lb is a schematic representation of the interior parts of a door fitting in a modified version compared to Figure la, in which the Umschaltvor¬ direction via a (known as such) infrared remote control with a transmitter 5b 'and a receiver integrated in the door fitting Actuating unit 5a 'is actuated, which may have an electromagnetic actuator, a servomotor or the like. A light-emitting diode display 6 'is provided on this for displaying the set function or preselection state. The other components correspond to FIG. 1. This embodiment is particularly advantageous in larger work spaces of authorities with heavy public traffic. Executive offices or the like can be used. where manual actuation directly on the door fitting is not an adequately convenient or technically demanding solution.

FIG. 2a shows the fitting shown sketchily in FIG. 1a in a horizontal sectional view as a functional schematic diagram. The main components of a standardized, latch lock or latch lock 8 that can be used as desired are a snap latch (a latch) 9 and a Square push-through element (a so-called nut) 10 shown, which correspond to those of the standardized lock. The outer pawl 3 of the switching and functional fitting is connected to the inner pawl 4 in a manner similar to a conventional design via a modified square mandrel 11 as an actuating shaft for the snap bolt 9. The square mandrel 11 - in contrast to a conventional mandrel - is provided with an axially continuous recess (not specifically shown in this figure) and is connected in a conventional manner to the nut 10 by mechanical positive locking. Its end protruding into the outer jack 3 is machined rotationally symmetrically, so that it has - in itself - no form fit with the outer jack.

The square mandrel 11 is assigned a direction of movement converter 12 (on the inner pawl 4) and a transmission and coupling mechanism 13 which connect the rotary lever 5 arranged on the inside of the door to an active element 15 for making the outer pawl 3 effective or ineffective. The movement direction converter 12 - shown only symbolically here - converts a rotary movement of the rotary lever 5 into an axial displacement of the active element 15. The latter in turn is either in engagement or out of engagement with a sleeve-like engagement element 14 on the outer pawl 3. By rotating the rotary lever 5, the active element 15 is moved axially, ie parallel to the square mandrel 11, in order to achieve the desired engagement state with the engagement ¬ element 14 and thus optionally an active connection between see outside jack 3 and square mandrel 11 and thus ultimately between the outside jack 3 and the latch 9 or to cancel. How this happens in detail depends on the specific design, in particular of the coupling device, and is described in more detail below using the example of special embodiments.

In the embodiment shown, an (optional) through-bore 16 is provided in the external jack 3, into which a ballpoint pen refill 16a, a wire or the like. are introduced and so that the active element 15 can be pressed from the outside into the engagement position even when the engagement was originally released from the inside. The bore 16 thus functions (together with the ballpoint pen refill) as a safety opening device, by means of which the integrated switching and functional mechanism can be adjusted in such a way that a door which is locked from the inside can be opened safely from the outside.

The pre-selection function mentioned above, in which a switch from the "ineffective" state to the state

"effective" by pressing the inner pawl instead of the Rotary lever takes place, can be carried out with the help of known bi-stable mechanical switching arrangements (such as a locking disk with spring elements), wherein the required mechanics can be integrated in the fitting parts in the area of the inner pawl.

2b is an illustration of a slightly modified embodiment of a fitting in comparison with FIG. 2a, in which the outer latch 3 has a lock opening 17 with coding recesses instead of a simple cylindrical through-bore and a suitable key 18 is provided in the system with which the locked door 7 can be opened from the outside in a manner similar to the fitting described above. The remaining parts correspond to those shown in Fig. 2a and will not be described again. In a further development (not shown here), the outer latch can have a commercially available, displaceable and adjustable locking cylinder, via which the functional state of the outer latch or handle can be permanently set by means of an associated key.

FIG. 2c is a basic illustration of a further embodiment modified compared to FIG. 2a. Here, the outer jack 3 is provided with transmitting and receiving elements 19a, 19b, arranged opposite one another on the circumference of the cylindrical passage bore 16, of a mini light barrier arrangement 19. The transmitting element 19a (for example an LED) is connected to a voltage source 19e via a switch 19c (which can be attached to the inside of the door) and a driver 19d, the receiving element 19b via a signal processing stage 19f and power supply 19g with an alarm transmitter 19h. In the activated state of the arrangement 19, ie with the switch 19c closed, an alarm signal is emitted when the light beam passing through the opening 16 is interrupted as a result of the introduction of a tool for unlocking the lock. The remaining parts shown here also correspond to those of FIG. 2a.

FIGS. 3a and 3b show a sectional view along a horizontal section plane perpendicular to the plane of the door leaf with a door fitting 100 with a switching device according to one embodiment of the invention in the two switching states “active” (FIG. 3a) and “inactive” (Fig. 3b), the square mandrel with the parts assigned to it being shown rotated by 90 ° for better clarification of its shape. 3c and 3d show the structure of the actuating device in the vertical plane BB in FIG. 3a in the "effective" position - seen from the interior of the room (FIG. 3c) or from the door leaf (FIG. 3d) -, FIGS. 3e and 3f the construction of the actuating device from the viewing direction from the interior of the room in the positions “ineffective / unstable” (FIG. 3e) or “ineffective / stable” (FIG. 3f), FIGS. 3g and 3h the actuating device in viewing direction Direction from the door leaf in the "ineffective / unstable" position (FIG. 3g) or upon actuation of the inner handle (FIG. 3h), and FIGS. 3i and 3j are cross-sectional representations of the coupling device in the vertical plane A- A in Fig. 3a and 3b in the positions "effective" and "ineffective". A description is given only for the components of the switchover device which are functionally essential from the point of view of the invention, especially insofar as their arrangement and interaction cannot be readily taken from the drawings. Parts or assemblies that have already been shown in schematic form in FIGS. 1 a and 2 a are identified with reference numerals based on these figures (ie, for example, with the number 101 corresponding to number 1, number 102 accordingly Number 2 etc.).

The fitting 100 shown in FIGS. 3a to 3j corresponds in many parts to a conventional door fitting and is used with a conventional latch lock 108 with a latch 109 and a nut 110.

A modified lock square mandrel 111 has on its top (due to the above-mentioned drawing rotation through 90 ° in the figure as the right side) a recess purple, in which a traction cable 113a runs. At a (later described) coupling device facing a cylindrical end 11b of the square mandrel, the recess opens purple into a central bore IIIc with an enlarged diameter. * In the area of the fitting 100, where the square mandrel 111 in the assembled state of the fitting surrounds a rotating ring 105 as an actuating element for the switching device, a clamping block 112d is provided which can be clamped with the pulling cable 113a, with which a connection between the pulling cable 113a and the actuating device of the switching device is established during the assembly of the inside fitting parts and at the same time the effective rope length is adjusted to match the thickness of the door leaf 107. The rotating ring 105, which is provided with an axial curve 105a and has a design ring 102 connected to transmit torque, is rotatably and axially secured between a first housing plate 120a and a second housing plate 120b, this arrangement having an abutment plate I20f for receiving the bearing collar of the inner pawl 104 via two screws 121 penetrating through door leaf 107 are connected to an abutment 120c on the outside of the door. In the inner ratchet neck 104a, a threaded bore 104b is provided in a known manner for receiving a set screw 104c, by means of which the inner pusher (the inner pawl) 104 is connected to the square 111 in a rotationally fixed manner and secured against axial displacement or pulling off.

The rotating ring 105 has on the inside a free end face surface provided with two identical, opposing cam tracks, against which a rope stone plate 112b is pressed by means of two strong compression springs 112a supported against the first housing plate 120a. The axial position of this rope stone sheet is thus determined by the rotational angular position of the curved tracks on the inner face surface 105a of the rotating ring 105, and thus ultimately by its rotational position.

The rope stone sheet has a wide, concentric bore in which a two-part rope stone 112c is received, between the two parts of which, screwed together, the above-mentioned clamping stone 112d, in the purple recess of the square mandrel 111, rests. The axial position of the cable stone sheet 112b thus also determines that of the clamping block II2d and - since that in the clamping block Pull rope 113a is fixed axially - that of the pull rope 113a. In this way, a rotation of the rotary ring 105 is ultimately converted into an axial displacement of the pull cable 113a and (as explained further below) a shifting gate 113b.

The circuit-securing bistable or stable behavior of the switching device is achieved by the interaction of a pressure spring member 112f connected to the rotating ring 105 at one end and pivotable about an axis 112e at the other end and a combined latching and triggering mechanism 112g which is realized with a Cam edge 120b.1 on the rope block on the one hand and - by means of a ball thrust piece 112g.1 - cooperates with two grooves 105b in the inner surface of the rotating ring 105 on the other hand.

The combined latching and release mechanism 112g has a rotatably mounted latching pivot lever 112g.2 with ball thrust piece 112g.1 and a rotatably mounted release tab lever 112g.3. By means of a tension spring 112g.4 connecting the ends of the latching pivot lever 112g.2 and the release lever 112g.3 facing away from one another, the latching and triggering mechanism 112g is designed as a self-tensioning system. This module is used to set the bistable state (position "I"; FIGS. 3e, 3g) and to cancel it when there is a defined external action, and causes the switching device to automatically switch from the position "I" to the position "0" . In the embodiment shown, the defined external action is in particular the depression of the inner pawl 104, as shown in the approach in FIG. 3h. Thereby, the cam edge I20b.l of the release tab lever I12g.3 pivots, as a result of which the latching pivot lever 112g.2 loses its counter bearing and the ball pressing piece disengages from the groove 105b in the inner circumferential surface of the rotary ring 105.

The same effect is achieved (irrespective of the direction of rotation) by rotating the shaft 112g.5 provided with cams on the outside and with a hexagon socket by means of a suitable adjusting element or a device via which a torque is exerted on the shaft 112g.5 becomes. This enables an electromagnetic release, an automatic snap lock release or a manual release from the outside of the door.

Unlike the inner pawl 104, the outer pawl 103 is not permanently non-rotatably connected to the square mandrel 111, but its pusher neck 103a has an enlarged blind hole, into which a sleeve 114 is inserted in a rotationally fixed manner, which is radially in the outer lock panel 101 stored and axially fixed via a shaft locking ring 114a. The sleeve 114 also forms the outer shell of a coupling device, via which a rotationally fixed connection with the square mandrel 111 is optionally established (switching or functional state "effective") or canceled (switching or functional state "ineffective").

The coupling device 113 comprises a shifting gate 113b (whose shape can be clearly seen in FIGS. 3a and 3b), which is firmly connected to the outer end of the traction cable 113a and has a rotationally symmetrical shape the shifting gate radially leading, the square mandrel 111 axially extending and non-rotatably connected to this coupling inner sleeve 113c and a in the central bore lllc of the square mandrel 111 held the outer outer end of the pull cable 113a helical compression spring 113d. As active elements for establishing the connection between the sleeve 114 and the square mandrel 111, two blocking stones 115, which are arranged opposite one another on the circumference of the shifting gate and are mounted in the clutch inner sleeve 113c, are provided. The basic shape of the blocking stones 113d is - as can be seen in FIG. 3a in connection with FIG. 3i - cuboid with rounded edges and inner surfaces worked out according to the radius gradations of the shifting gate. The sleeve 114 has on its inner circumferential surface two recesses 114a which correspond to the shape and position of the blocking stones 115 and are bevelled into the remaining areas of the inner cylinder surface and into which the blocking stones 115 are inserted by the switching link 113b and from which they can be pressed inwards again when the sleeve 114 (ie the outer pawl 103) rotates. The compression spring 113d is supported between the front face of the switching link 113b and the bottom of the hole IIIc and presses the switching link away from the door leaf.

The interaction between the pull cable 113a and the compression spring 113d results in the two switching positions shown in FIGS. 3a and 3i or 3b and 3j, depending on the rotational position of the rotary ring 105 and the axial position of the pull cable 113a mediated thereby: Switching 3a, 3i, the pulling cable is pulled inward against the force of the compression spring 113d (overcoming it), as a result of which the areas of greatest radial extension of the switching link 113b come in the position corresponding axially to the inwardly projecting sections of the locking blocks 115 and the blocking stones are pressed radially outward into the recesses 114a of the sleeve 114 by the switching link. In this switching position, the inner sleeve 113c and thus the square mandrel 111 are connected in a rotationally fixed manner to the sleeve 114 and thus the outer pawl 103 by the locking stones, so that the outer pawl is effective. In the position shown in Fig. 3b, 3j, the pull cable 113a is not pulled inwards, so that the shifting gate 113b is pressed outwards by the force of the compression spring 113d. Their areas of greatest radial extension thus come to lie corresponding to the recess sections of the blocking blocks 115, so that they are no longer pressed into the recesses of the sleeve 114. If the outer pawl is actuated in this position, ie the sleeve 114 is rotated, its inner circumferential surface runs practically without resistance on the blocking stones 115, as a result of which these are easily pressed inwards out of the recesses 114a. The inner sleeve 113b (and thus the square mandrel 111) is thus decoupled from the sleeve 114 and thus the outer pawl 103, and the latter moves in idle mode.

In the extension of the longitudinal axis of the switching link 113b, the external jack 103 has a bore 116 which extends through to the outside and into which an elongate object of corresponding dimensions can be inserted, with which a axially inward pressure can be exerted on the switching link 113b. In this way - in accordance with the principle shown in FIG. 2a - the shifting link can be axially displaced from the outside and the rotationally fixed connection between the square mandrel 111 and the outer pawl 103 can be established independently of the position of the inner actuating element by pressing the blocking stones 115 outward and a security opening function can be realized.

The sleeve 114 with the coupling device 113 accommodated therein and the active elements 115 can be used as an integral subassembly in various types of external handling and by means of various principles adapted to the respective fitting system for the rotationally fixed connection. In particular, it can have a structured outer wall surface and can be pressed with the handle or it can be shrunk onto the sleeve.

In the exemplary embodiment described above, the blocking stones 115 are designed such that an insertion which is rotated by 180 ° leads to a reversal of the functional states “effective” and “ineffective”.

The structure of the outer fitting, including the storage of the outer jack, is conventional and is not described here. It is only pointed out that in the embodiment shown to generate an ergonomically appropriate counterpressure when actuated and to support the return of the external pawl 103 to the rest position in the fitting, the socket or sleeve 114 is End coil spring 117 which prestresses the outer pawl into the horizontal position.

The embodiment of the invention is not limited to the preferred embodiment described above. Rather, a number of variants are conceivable which make use of the solution shown, even in the case of fundamentally different types.

In particular, the switchover device can also be used with conventional door, gate or window fittings which have a structure and / or additional functions which deviate greatly from the described designs, for example with security door fittings, so-called panic locks (with the possibility of Unlocking the key-operated lock via handle actuation) etc. In the case of door or window fittings with rosettes, the device can basically be relied in the same way as described above for door fittings with lock covers.

Claims

Expectations

1. Switching device for a door or window fitting, which has an inner and an outer, respectively axially fixed handle (3, 4; 103, 104) for withdrawing the locking element (9; 109) of a lock (8; 108) which can be used in any manner. has with

an operating shaft (11; 111) running between the inner and outer handle for withdrawing the locking element, the outer dimension of which represents the only connecting dimension of the switching device to the lock,

an actuating element (5; 5a ', 5b'; 105) assigned to the inner handle for the optional setting of at least two functional states of the outer handle,

a transmission device (12, 13; 112a-g, 113a) and, at least in the area of the actuating shaft which extends through the lock and within its outer dimension between the inner and outer handle and which is connected to the actuating element on the inside

- A coupling device (13-15; 113b-d, 114, 115) assigned to the outer handle and integrated as a closed unit in the outer handle for effecting the selected functional state of the outer handle, in particular for selectively connecting or uncoupling the outer handle Handle and actuation shaft, such that the outer handle can be rotated in any functional state,

2. Switching device according to claim 1, characterized in that the transmission device has a tensile and / or compressive force or torque transmission element (113a) and the clutch device is switchable by a tensile or compressive force or torque, with the transmission element connected directional or clamping ratchet (113b-d, 114, 115).

3. Switching device according to claim 2, so that a reset element (113d) is provided which acts automatically in the opposite direction to the direction of action of the actuating element and the transmission element, in particular in the form of a spring element.

4. Switching device according to claim 2 or 3, d a - d u r c h g e k e n n z e i c h n e t that the transmission element is an essentially parallel to the longitudinal axis of the actuating shaft, in particular in a bore or recess in the same, pulling rope or band (113a) or a correspondingly arranged push rod.

5. Switching device according to one of the preceding claims, characterized in that the coupling device an at least optionally in engagement with the actuating shaft, in particular a square mandrel (111) for a spring-operated snap bolt (109), or a first engagement part (115) located firmly with this additional part (114).

6. Switching device according to claim 5, characterized in that the clutch device with the transmission element (113a) firmly connected and through this between at least two different positions, changing the engagement state with the first engagement part (115), movable second input Handle part (113b).

7. Switching device according to one of the preceding claims, ie that the actuating element is designed as a rocker arm (5) or rotary ring (105) and in particular has a common axis of rotation with the inner handle (4; 104) which is designed as a pusher.

8. Switching device according to one of the preceding claims, characterized in that the coupling device (113b-d, 114, 115) and / or the actuating element (105) is designed such that when the switching device (100) is installed as the functional state of the outer handle in a basic position ("0") the state "active" or the state "ineffective" can optionally be specified.

9. Switching device according to one of the preceding claims, characterized in that the actuating element or the transmission means (112f) for the optional permanent changeover between functional states "effective" ("0") and "ineffective" ("II") of the outer Has handle with circuit-supporting force.

10. Switching device according to one of the preceding claims, characterized in that the actuating element or the transmission device has a latching and resetting mechanism (112g) for the optional setting of a bistable function changeover state which actuates the actuating element when the inner handle or actuates an outside safety release device or automatically moves into a basic position ("0") by moving an additional active element, in particular connected to the locking element of the lock.

11. Switching device according to one of the preceding claims, namely that the actuating element (105) is designed symmetrically in such a way that the actuating direction can be selected.

12. Switching device according to one of the preceding claims, characterized in that the coupling device (113b-d, 114, 115) symme- It is trically designed that the changeover device can be used in conjunction with symmetrical handles in one and the same embodiment, in particular with the same orientation of the actuating element, with doors, gates or windows that open to the left and right.

13. Switching device according to one of the preceding claims, characterized by additional switching means (16, 16a; 17, 18; 116, 112g.5) which perform an at least unidirectional switchover between two functional states, in particular a switchover from the "ineffective" state. enable in the "effective" state from the side of the outer handle.

14. Switching device according to claim 13, characterized in that the additional Umschaltmit¬ tel have an opening (16, 17; 116) in the outer handle through which the active element and / or the clutch device, in particular by means of a key-operated shift and lockable lock cylinder, its position is changeable and / or lockable.

15. Switching device according to one of the preceding claims, characterized by function and setting status display means (6; 6 '; 19) acting outwards and / or inwards, in particular a sensor for remote querying of the functional state of the switching device and / or the angular position of your actuator mentes and / or a movement of a handle of the associated fitting for connection to an alarm system or a building control or doorbell system.

16. Switching device according to one of the preceding claims, characterized in that means (5a ¹ , 5b ') for, in particular wireless, remote actuation are provided.

17. Door, gate or window fitting, g e k e n n ¬ z e i c h n e t d u r c h a switching device according to one of the preceding claims.

18. Door, gate or window fitting according to claim 17, characterized in that the inner and the outer handle (3, 4; 103, 104) each pivotable about a common horizontal axis of rotation, with the actuating shaft (11; 111) for the locking element (9; 109) connected or connectable pusher are formed.

19. Door, gate or window fitting according to claim 17, d a d u r c h g e k e n n z e i c h n e t that the outer handle is designed as a movable door push plate that can be connected to an actuating shaft for the locking element or as a corresponding door push bar.