EP0499796B1 - Safety locking device for the door leaf of a swinging door - Google Patents

Safety locking device for the door leaf of a swinging door Download PDF

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Publication number
EP0499796B1
EP0499796B1 EP92100790A EP92100790A EP0499796B1 EP 0499796 B1 EP0499796 B1 EP 0499796B1 EP 92100790 A EP92100790 A EP 92100790A EP 92100790 A EP92100790 A EP 92100790A EP 0499796 B1 EP0499796 B1 EP 0499796B1
Authority
EP
European Patent Office
Prior art keywords
locking
door leaf
safety
door
arrangement according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92100790A
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German (de)
French (fr)
Other versions
EP0499796A2 (en
EP0499796A3 (en
Inventor
Wolfgang Prokopp
Heinz Nitsche
Harald Gerstner
Christian Rappl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
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Publication date
Application filed by Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0499796A2 publication Critical patent/EP0499796A2/en
Publication of EP0499796A3 publication Critical patent/EP0499796A3/en
Application granted granted Critical
Publication of EP0499796B1 publication Critical patent/EP0499796B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E05B81/21—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening with means preventing or detecting pinching of objects or body parts

Definitions

  • the invention relates to a security lock for a door leaf of a swing or swing door with the features of the preamble of claim 1.
  • a security lock with these features is known (DE 27 43 598 A1).
  • DT-PS 2 062 135, DE 37 05 369 A1) which are mainly used in buses
  • at least one rotary latch is provided, which is pivotally mounted on the door frame and with a locking bolt attached to the corresponding door leaf cooperates. It is pretensioned by a hinged spring with the door open in a dead position, from which it snaps into the closed position when the locking bolt strikes.
  • a pneumatic drive supports the locking movement of the rotary latch and acts as a locking aid in addition to the main door drive.
  • the fork catch catches the locking bolt and thus brings about a mechanical locking of the door leaf that is only conditionally dependent on the compressed air for the pneumatic door drive.
  • the position of the locked rotary latch is additionally secured by the spring under pressure.
  • a pawl for mechanically locking the rotary latch in the closed position is not provided, however.
  • the rotary latch is first disengaged from the locking bolt by the pneumatic drive and only then is the pneumatic door leaf rotary drive activated.
  • the existing emergency release lever - with a valve for system ventilation - is also mechanically coupled to the rotary latch and can also disengage the locking bolt after the system ventilation has taken place, whereby the drive is carried without pressure.
  • the door leaf can simply be pushed open by hand. The door leaf can be locked from the outside with a standard security lock that is separate from the rotary latch.
  • Rotary latch locks of various types of construction are generally used as vehicle door locks for cars (DE 32 07 880 A1, DE 34 14 475 C1, DE 35 00 550 A1); For security reasons, they mostly interact with locking wedges which have a closed locking eyelet with which the forked lock catch is in almost positive engagement when the door is closed (DE 32 30 682 A1, DE 39 36 426 A1).
  • a reference to the appropriate equipment of a swing or swing door can not be found in the document mentioned.
  • such locks can easily be coupled to actuating elements of a central locking system, as can be seen from the aforementioned DE 35 00 550 A1.
  • a locking of the lock against opening from the outside is preferably achieved by releasing an operative connection between an outside door handle and the lock on a coupling which is actuated by the actuating element in order to make the outside door handle free to move.
  • the object of the invention is to further improve the operational safety of a generic safety lock with a rotary latch lock.
  • a special measure to support the reliable closing of the door leaf and the latching of the rotary latch lock is implemented according to the invention by pneumatic locking drives which are assigned to each door leaf in addition to the rotary latch lock and the main drive and which are themselves controlled by the movement of the door leaf approaching its closed position. They are also provided for additional securing of the closed position of the door leaf while driving and have a locking effect as long as they are subjected to pneumatic pressure. They are free to move when depressurized and only work in one direction. While a single rotary latch lock is sufficient for mechanical, air pressure-independent securing.
  • B. is arranged on a door longitudinal side (vertical edge), the locking aids mentioned are arranged on both sides. Several of them can also be provided on one side of the door.
  • Figure 1 is a door leaf 1 of an outer swing door, which in the closed position closes a door opening formed by a frame 2 in a vehicle side wall - with, of course, elastic seals (not shown) closing around the remaining gaps - with schematically indicated components of the safety lock which will be described later shown in a view from outside the vehicle.
  • the safety lock comprises a rotary latch lock 3 (FIG. 2) which is arranged within the door leaf 1 itself and corresponds to a locking wedge 4 which is arranged on the frame 2 in an adjustable manner.
  • a door opener drive 5 is also provided within the door leaf 1, which can be operated by external force, that is to say electrically or — preferably — pneumatically and via an active connection 6 indicated by dashed lines, for. B. a linkage, acts on a pawl (Fig. 2) of the rotary latch lock 3.
  • the rotary latch lock 3 on the outside of the door leaf 1 is assigned a door pull handle 7 and a locking cylinder 8.
  • an emergency valve 9 On the inside of the door frame 2 there is an emergency valve 9 which, in accordance with the applicable safety regulations, is used in a known manner for depressurizing (venting) the pneumatic door locking system and is also coupled to the locking wedge 4 via a dashed active connection 10.
  • Locking devices 11 are also attached to the door frame 2, which in turn interact with locking bolts 12 which are adjustably fastened to the door leaf 1.
  • a control device 13 is also provided on the door frame, which can be acted upon by an actuating component 14 which is adjustably fastened to the door leaf 1 when the door leaf 1 approaches its closed position.
  • a pneumatic main drive 15 of the door leaf 1 which is only indicated schematically, can be of a conventional type (traveling nut / spindle) and attached to the vehicle chassis, in contrast to conventional main drives it does not have to lift the door leaf in the closed position. It essentially consists of a lifting cylinder 16, the lifting movement of which is mechanically translated into a rotary movement of an output or drive shaft 17.
  • pivot arms 18 are connected to the drive shaft, which are articulated on the door leaf 1 in an axis 19. The door leaf is guided by the swivel arms 18 in such a way that it can be swiveled into or out of the opening framed by the frame 2 perpendicular to the vehicle wall.
  • the simple rotary latch lock 3 has a housing 20, in which, in a known manner, a fork catch 21 with a fork mouth 22 opening between two legs 21V (preliminary locking) and 21H (main locking) about an axis 23 and a pawl 24 are pivotally mounted about an axis 25.
  • the fork rotary latch 21 is drawn in its release position and is biased in the release direction (here: clockwise) by a torsion spring (indicated by the arrow on axis 23), while the pawl 24 is in its locked position in the direction of the fork rotary latch 21 likewise clockwise by another torsion spring (indicated by arrow on axis 25) is biased.
  • the fork mouth 22 comprises a bolt or part of a locking eye of the locking wedge 4 (indicated by dashed lines, see FIG. 3), while the pawl 24 in the position indicated by dash-dotted lines acts on the outside of the leg 21H and thus on the main catch of the fork rotary latch 21 and fixes it in the locked position.
  • the pawl 23 can either by means of a link indicated by a double dash line or the like (which belongs to the active connection 6 indicated in Figure 1) either manually. B. by means of the door pull handle 7 shown in Figure 1 or by external force by means of the door opener drive 5, whereupon the fork rotary latch 21 is pivoted by its torsion spring and releases the bolt or the locking wedge.
  • a pivot point 26 is provided on the pawl 24, with which the lifting linkage can be coupled, the other side is uncoupled in the usual way with the door pull handle and firmly connected to the door opener drive.
  • the locking wedge 4 has, as shown in FIG. 3 in a top view and FIG. 4 in a side view, a normally closed locking eyelet 27 in a manner known per se.
  • this locking eyelet 27 is the leg 21H of the fork rotary latch 21, which is the main catch corresponding to the pawl 24 has, almost positively recorded, as indicated by dashed lines in Figure 3.
  • an arrow drawn into the leg cross section shows the opening direction in which the door leaf 1 and the rotary latch lock 3 move when opening.
  • the locking wedge 4 offers, in addition to the mechanical fixing of the door leaf 1 in cooperation with the fork rotary latch 21, the additional possibility of opening the door leaf 1 itself immediately without actuation of the rotary latch lock 3 when the emergency valve 9 is actuated.
  • the locking wedge 4 consists of several parts, namely first of all a base or carrier plate 28 which is fastened to the door frame 2, an angle piece 29 which is fixedly connected to the latter and has a free end 29E, one pivotable about an axis 30 on the carrier plate 28 articulated movable angle piece 31 with a free end 31E and a two-armed locking lever 33 also articulated on the support plate 28 and also pivotable about an axis 32.
  • the fixed angle piece 29 and that movable angle piece 31 enclose between them the two-part locking eye 27, their free ends 29E and 31E at least abutting one another.
  • the already mentioned mechanical operative connection 10 acts between the inside emergency valve 9 and the closing wedge 4 (indicated by the double dash line in FIG. 4), for which purpose this arm has a pivot point or a pivot axis 35 is provided.
  • the other arm 36 of the two-armed locking lever 33 rests in the rest position with its end face or free end 36E on an outer surface of the movable angle piece 31 pointing away from the locking eye 27 at a distance from the axis 30 in the region of the apex of the angle piece 31, so that this is not (clockwise) pivotable about its axis 30, but keeps the locking eye 27 in the closed state.
  • the outer edge of the movable angle part 31 also serves as a stop for the free end of the locking lever 33; the spring force acting on the latter thus also makes a contribution to securing the closed position of the locking eye 27.
  • the active connection 10 can, depending on the structural conditions, for. B. as a Bowden cable, steel cable or linkage.
  • a two-stage actuation is preferably provided, in the first stage of which only the system ventilation is effected, while the second stage for pivoting the locking lever 33 and releasing the support of the movable angle part can only be achieved by an even further actuation of the emergency valve 9, which can generally be operated with a knob.
  • an idle gear extending over the first actuation stage of the emergency valve 9 is provided.
  • a pressure point can also be provided between the first and the second stage in order to form a tactile inhibition threshold before the mechanical guard locking is released.
  • FIG. 5 shows a further detail of one of the locking aid devices 11 already indicated in FIG. 1.
  • a Base plate 39 is pivotably mounted on one side - this is not visible in the door opening in the installed state - a pneumatic single-acting locking aid drive 40 which is preloaded in the rest position by spring force in the form of a pneumatic actuating cylinder with a compressed air connection 40P, whose linearly movable actuator 41 has an arm 42 a two-armed lever 43 also coupled to the base plate 39 is coupled.
  • the unactuated rest position - produced by a return spring after a drop in pressure - is drawn through, while the dot-dash line indicates the fully extended position of the actuator 41 and the two-armed lever 43 by pressurization.
  • the pivot axis 44 of the two-armed lever 43 passes through the base plate 39, a second arm 45 being arranged opposite the first arm 42 on the other side of the base plate 39, which is visible in the door opening in the installed state.
  • This side with the arm 45 is shown in Figure 6 , from which it can be seen that the arm 45 is shaped like a hook or nose.
  • a prismatic centering piece 46 is also attached.
  • the door leaf 1 is a trapezoidal cross section of one of the locking bolts 12, also indicated in FIG. 1 and fastened to the door leaf 1, in broken lines in relation to the second arm 45 in the approach position - in which the door leaf 1 is just before its closed position - and shown in dashed lines in the secured position.
  • the locking bolt 12 can be seen clamped between the second arm 45 and the centering piece 46.
  • the pivot axis 44 of the two-armed lever 43 extends perpendicular to the direction of movement of the door leaf 1 when it is immersed in the door opening. If the second arm 45 is pivoted counterclockwise according to FIG. 6, it pulls the locking pin 12 against the centering piece 46 or in its prismatic recess and above it the door leaf 1 into its closed position Position. This results in a virtually positive locking of the door leaf 1 in all directions.
  • the control device 13 shown in FIG. 7 in the installed state is provided for the pneumatic control of the locking aid drives 11.
  • the figure shows the door frame 2 and the door leaf 1 with the seals covering the gap between them in a sectional view.
  • the control unit 13 is mounted on a base plate 47, which in turn is screwed onto the door frame 2. It comprises a resiliently pretensioned pivot lever 48, which corresponds to the adjustable actuating component 14, which in turn is attached to the door leaf 1 and is already indicated in FIG. 1, and protrudes into its movement path even in its rest position. The rest position is pivoted clockwise relative to the actuation position shown.
  • a swivel lever 48 switches a control valve, not shown, of the control unit, which can also be fastened to the base plate 47. In the non-switched idle state, this connects the working chambers of the locking aid drives 40 of the locking aid devices 11 to the atmosphere, while in the switched state it enables the supply of compressed air to the actuating cylinders. The compressed air is supplied by the main drive. Obviously, the closing aid or power assistance is controlled by the movement of the door leaf 1 itself.
  • the closed door leaf 1 can be locked against opening from the outside by key actuation of the locking cylinder 8, the door pull handle 7 from the actuating linkage of the rotary latch lock 3 uncoupled and thus becomes free. If a rotary latch lock on a particularly large door leaf is not sufficient to secure it, it is easily possible to double the arrangement.
  • a lock can be arranged on both long sides of the door leaf, which then each correspond to a safety striker according to Figures 4 and 5.
  • the locking aid drives ensure that the rotary latch locks engage securely. Normally, only one lock cylinder will be provided on an omnibus on the passenger entry side - usually on the front door - so that in the present case the lock lock can be used to lock the other locks in the same way using assigned central locking control elements.
  • Another control point can be located on the driver's side in the lock cylinder of the driver's door.
  • the locking cylinder 8 is associated in a known manner with electrical control switches, which in turn serve for the electrical control of solenoid valves, via which the central locking control elements mentioned can be connected to air pressure.
  • these switches can of course also be used in a known manner to control an alarm system or other burglar alarm systems.
  • the lock cylinder 8 To open the door leaf 1, starting from the locked state, the lock cylinder 8 must first be operated by means of a key in the unlocking direction.
  • a control switch on the locking cylinder 8 can be provided or used in an advantageous manner, analogously to the conventional driver button which is provided for opening the door by the driver from the inside, or functionally parallel to this at the same time as the unlocking key actuation of the locking cylinder 8 initiate air-assisted opening process.
  • a separate push button for the opening process can also be provided on the outside of the vehicle may only be activated electrically when the rotary latch lock or lock cylinder is unlocked. This arrangement has the advantage that the mechanical door unlocking is carried out before the pressure is applied, so that neither a jamming of the lock mechanism caused by the opening pressure of the main drive nor a sudden impact of the door leaf after mechanical release can occur.
  • the door can also be opened after locking from the outside by means of the driver button mentioned, as long as the pneumatic assistant is available, because in contrast to the door pull handle, the door opener drive 5 is not uncoupled from the pawl of the rotary latch lock 3.
  • the door opener drive 5 is basically controlled after the triggering electrical door opening signal until the pneumatic main drive 15 has pivoted the door leaf 1 and the rotary latch lock 3 out of the closed position in order to avoid premature and undesired re-engagement of the lock 3.
  • the closing aid drives 40 are prematurely depressurized when the door leaf 1 is opened; they only serve to support the closing process and provide additional door locking during driving.
  • a ventilation valve is arranged in the supply line of the locking aid drives 40, which can also connect the latter to the atmosphere when the valve of the control device 13 is switched.
  • the actuating component 14 starts on the pivot lever 48 of the control device 13 .
  • the Locking aid drives 40 pressurized and extend.
  • the two-armed levers 43 coupled to the actuators 41 then grip the locking bolts 12 with their arms 45 and insert them into the centering pieces 46, the end position indicated by dash-dotted lines in FIG. 6.
  • the internally arranged emergency valve 9 so all locking aid drives 40 are first leading and then the pneumatic door system is vented, that is brought to atmospheric pressure.
  • the locking lever 33 is pivoted via the operative connection 10, if necessary after overcoming a pressure point.
  • the locking eyelet 27 of the safety striker 4 can then be opened in the manner described and the door leaf 1 can easily be pushed open in the opening direction by hand.
  • the externally arranged emergency valve 9 ' is actuated, on the other hand, the door leaf 1 can only be opened after the door pull handle 7 has been actuated and the mechanical lock lock has been released.

Description

Die Erfindung bezieht sich auf eine Sicherheitsverriegelung für ein Türblatt einer Schwing- oder Schwenktür mit den Merkmalen des Oberbegriffs des Patentanspruchs 1. Eine Sicherheitsverriegelung mit diesen Merkmalen ist bekannt (DE 27 43 598 A1). Anstelle oder neben der allgemein gebräuchlichen, luftdruckgestützten Hubverriegelung derartiger Türen (DT-PS 2 062 135, DE 37 05 369 A1), die vor allem in Omnibussen eingesetzt werden, ist darin wenigstens eine Drehfalle vorgesehen, die am Türrahmen schwenkbar gelagert ist und mit einem an dem entsprechenden Türblatt befestigten Schließbolzen zusammenwirkt.
Sie ist durch eine angelenkte Feder bei geöffneter Tür in eine Totlage vorgespannt, aus welcher sie beim Auftreffen des Riegelbolzens in die Schließstellung umschnappt. Ein pneumatischer Antrieb unterstützt die Schließbewegung der Drehfalle und wirkt dabei zusätzlich zum Haupttürantrieb als Schließhilfevorrichtung.
In der Schließstellung des Türblatts umfaßt die Gabeldrehfalle den Schließbolzen und bewirkt damit eine mechanische und von der Druckluft für den pneumatischen Türantrieb nur bedingt abhängige Verriegelung des Türblatts. Die Position der verriegelten Drehfalle wird durch die auf Druck beanspruchte Feder zusätzlich gesichert. Eine Sperrklinke zur mechanischen Verrastung der Drehfalle in der Schließstellung ist allerdings nicht vorgesehen.The invention relates to a security lock for a door leaf of a swing or swing door with the features of the preamble of claim 1. A security lock with these features is known (DE 27 43 598 A1). Instead of or in addition to the commonly used air pressure-assisted lift lock of such doors (DT-PS 2 062 135, DE 37 05 369 A1), which are mainly used in buses, at least one rotary latch is provided, which is pivotally mounted on the door frame and with a locking bolt attached to the corresponding door leaf cooperates.
It is pretensioned by a hinged spring with the door open in a dead position, from which it snaps into the closed position when the locking bolt strikes. A pneumatic drive supports the locking movement of the rotary latch and acts as a locking aid in addition to the main door drive.
In the closed position of the door leaf, the fork catch catches the locking bolt and thus brings about a mechanical locking of the door leaf that is only conditionally dependent on the compressed air for the pneumatic door drive. The position of the locked rotary latch is additionally secured by the spring under pressure. A pawl for mechanically locking the rotary latch in the closed position is not provided, however.

Zum Öffnen der betreffenden Schwing- oder Schwenktür wird, durch eine pneumatische Reihenfolgesteuerung koordiniert, zunächst die Drehfalle durch den pneumatischen Antrieb außer Eingriff mit dem Schließbolzen gebracht und erst dann der ebenfalls pneumatische Türflügel-Drehantrieb aktiviert.To open the relevant swing or swing door, coordinated by a pneumatic sequence control, the rotary latch is first disengaged from the locking bolt by the pneumatic drive and only then is the pneumatic door leaf rotary drive activated.

Im Falle fehlenden Luftdrucks ist auch rein mechanisches Türöffnen von innen möglich; der vorhandene Notauslösehebel - mit einem Ventil zur Systementlüftung - ist zusätzlich mit der Drehfalle mechanisch gekuppelt und kann diese nach erfolgter Systementlüftung ebenfalls außer Eingriff mit dem Schließbolzen bringen, wobei der Antrieb drucklos mitgeführt wird. Hernach kann das Türblatt einfach von Hand aufgestoßen werden. Das Türblatt kann mit einem üblichen Sicherheitsschloß, das von der Drehfalle getrennt ist, von außen abgeschlossen werden.In the event of a lack of air pressure, purely mechanical door opening from the inside is also possible; the existing emergency release lever - with a valve for system ventilation - is also mechanically coupled to the rotary latch and can also disengage the locking bolt after the system ventilation has taken place, whereby the drive is carried without pressure. After that, the door leaf can simply be pushed open by hand. The door leaf can be locked from the outside with a standard security lock that is separate from the rotary latch.

Drehfallenschlösser unterschiedlichster Konstruktionsarten sind als Fahrzeugtürschlösser für PKW allgemein gebräuchlich (DE 32 07 880 A1, DE 34 14 475 C1, DE 35 00 550 A1); sie wirken aus Sicherheitsgründen meist mit Schließkeilen zusammen, die eine geschlossene Schließöse aufweisen, mit welchem sich die gegabelte Schloßdrehfalle bei geschlossener Tür in nahezu formschlüssigem Eingriff befindet (DE 32 30 682 A1, DE 39 36 426 A1).Rotary latch locks of various types of construction are generally used as vehicle door locks for cars (DE 32 07 880 A1, DE 34 14 475 C1, DE 35 00 550 A1); For security reasons, they mostly interact with locking wedges which have a closed locking eyelet with which the forked lock catch is in almost positive engagement when the door is closed (DE 32 30 682 A1, DE 39 36 426 A1).

Es ist auch eine nicht gattungsgemäße elektrische Türverriegelung für eine nur von Hand bewegbare Fahrzeugtür bekannt (DE 36 36 838 A1), in der ein elektrischer Antrieb zur Unterstützung des Öffnens - durch Einwirkung auf die Schloßdrehfalle analog zum gattungsbildenden Stand der Technik - und Schließens des (entriegelten) Türschlosses sowie eine über elektrische Schalter bei der Schließbewegung des Türblatts betätigbare Steuereinheit zur Aktivierung des Antriebs eingesetzt werden. Der Antrieb hebt zum Öffnen des Schlosses über ein Getriebe eine Sperrklinke an, so daß die Drehfalle in ihre Freigabestellung springen kann.There is also a non-generic electric door lock for a vehicle door that can only be moved by hand (DE 36 36 838 A1), in which an electric drive to support the opening - by acting on the lock catch analogous to the generic state of the art - and closing the ( unlocked) door lock and a control unit that can be actuated via electrical switches during the closing movement of the door leaf to activate the drive. The drive lifts a pawl to open the lock via a gear so that the catch can jump into its release position.

Ein Hinweis auf eine entsprechende Ausstattung einer Schwingoder Schwenktür kann der genannten Druckschrift nicht entnommen werden.
Außerdem sind derartige Schlösser ohne weiteres noch mit Stellelementen einer Zentralverriegelungsanlage koppelbar, wie aus der bereits genannten DE 35 00 550 A1 hervorgeht.
Eine Verriegelung des Schlosses gegen Öffnen von außen wird vorzugsweise durch Aufheben einer Wirkverbindung zwischen einer Türaußenhandhabe und dem Schloß an einer Kupplung erreicht, welche durch das Stellelement betätigt wird, um die Türaußenhandhabe freigängig zu machen.
Es sind noch weitere Sicherheitsverriegelungen für Schwing-, Schwenk- oder Schiebetüren bekannt, z. B. einfache Schnappschlösser (DE 23 09 313 A1, DE 37 18 483 A1), durch Stellelemente ein- und ausrückbare Drehsperren für den Türantrieb (DE 24 33 899 B2, DE 30 24 990 A1) oder einschiebbare Riegel für die Türflügel (DE 35 02 752 A1, DE 35 21 187 A1, DE 38 08 390 A1).
Bei diesen ist jeweils entsprechend den einschlägigen Gesetzesvorschriften eine Einrichtung zur Notbetätigung der Verriegelung bei Ausfall der Hilfskraft und zum manuellen Öffnen der Tür vorgesehen.
Schließlich ist es auch bekannt (US 3,016,968), bei einem (Heckdeckel-) Drehfallenschloß einen pneumatischen einfachwirkenden Stellmotor zum Ausheben der die Drehfalle sperrenden Sperrklinke auf Knopfdruck vorzusehen.A reference to the appropriate equipment of a swing or swing door can not be found in the document mentioned.
In addition, such locks can easily be coupled to actuating elements of a central locking system, as can be seen from the aforementioned DE 35 00 550 A1.
A locking of the lock against opening from the outside is preferably achieved by releasing an operative connection between an outside door handle and the lock on a coupling which is actuated by the actuating element in order to make the outside door handle free to move.
There are other safety locks for swinging, swinging or sliding doors known, e.g. B. simple snap locks (DE 23 09 313 A1, DE 37 18 483 A1), by means of actuating elements that can be engaged and disengaged turnstiles for the door drive (DE 24 33 899 B2, DE 30 24 990 A1) or insertable bolts for the door leaf (DE 35 02 752 A1, DE 35 21 187 A1, DE 38 08 390 A1).
In accordance with the relevant legal regulations, a device for emergency actuation of the lock in the event of failure of the assistant and for manual opening of the door is provided in each case.
Finally, it is also known (US Pat. No. 3,016,968) to provide a pneumatic single-action actuator for a (trunk lid) rotary latch lock to lift the pawl blocking the rotary latch at the push of a button.

Die Erfindung hat die Aufgabe, die Betriebssicherheit einer gattungsgemäßen Sicherheitsverriegelung mit Drehfallenschloß weiter zu verbessern.The object of the invention is to further improve the operational safety of a generic safety lock with a rotary latch lock.

Diese Aufgabe wird mit den kennzeichnenden Merkmalen des Patentanspruchs 1 erfindungsgemäß gelöst.This object is achieved according to the invention with the characterizing features of patent claim 1.

Die kennzeichnenden Merkmale der Unteransprüche geben vorteilhafte Weiterbildungen der erfindungsgemäßen Sicherheitsverriegelung an.The characterizing features of the subclaims indicate advantageous developments of the safety lock according to the invention.

Obwohl an sich die Verwendung von Drehfallenschlössern mit Sperrklinke etc. bei Fahrzeugtüren bekannt ist, haben sich diese für die Verwendung bei Schwing- oder Schwenktüren insbesondere von Omnibussen bisher nicht angeboten, weil bei diesen Fahrzeugen eine Reihe von zusätzlichen Sicherheitsvorschriften beachtet und eingehalten werden muß, die insbesondere die Möglichkeit zum Öffnen der Türen nach Unfall oder bei Ausfall der pneumatischen Hilfsenergie von außen so gut wie von innen betreffen. Des weiteren müssen die Türen schon im Normalbetrieb vom Fahrerplatz aus durch Knopfdruck geöffnet und wieder geschlossen werden können, was bei Verwendung eines Drehfallenschlosses der üblichen Bauart weitere Maßnahmen erforderlich macht.Although the use of rotary latch locks with a pawl etc. is known per se for vehicle doors, these have become for the use of swinging or swinging doors, in particular of buses, has not been offered until now, because a number of additional safety regulations must be observed and observed in these vehicles, in particular the possibility of opening the doors after an accident or in the event of failure of the pneumatic auxiliary energy from the outside concern from the inside. Furthermore, the doors must be able to be opened and closed from the driver's position in normal operation by pressing a button, which means that additional measures are required when using a rotary latch lock of the usual type.

Eine besondere Maßnahme zum Unterstützen des zuverlässigen Schließens des Türblatts und des Einrastens des Drehfallenschlosses ist gemäß der Erfindung durch pneumatische Schließhilfeantriebe verwirklicht, die zusätzlich zum Drehfallenschloß und zum Hauptantrieb jedem Türblatt zugeordnet sind und die durch die Bewegung des sich seiner Schließstellung annähernden Türblatts selbst gesteuert werden. Sie sind ferner zur zusätzlichen Sicherung der Schließstellung des Türblatts während der Fahrt vorgesehen und wirken zuhaltend, solange sie mit pneumatischem Druck beaufschlagt sind. Sie sind im drucklosen Zustand freigängig und wirken nur in eine Richtung. Während zur mechanischen, luftdruckunabhängigen Sicherung ein einzelnes Drehfallenschloß vollauf genügt, das z. B. an einer Türlängsseite (vertikale Kante) angeordnet ist, sind die erwähnten Schließhilfen beidseits angeordnet. Es können auch mehrere davon an einer Türseite vorgesehen werden.A special measure to support the reliable closing of the door leaf and the latching of the rotary latch lock is implemented according to the invention by pneumatic locking drives which are assigned to each door leaf in addition to the rotary latch lock and the main drive and which are themselves controlled by the movement of the door leaf approaching its closed position. They are also provided for additional securing of the closed position of the door leaf while driving and have a locking effect as long as they are subjected to pneumatic pressure. They are free to move when depressurized and only work in one direction. While a single rotary latch lock is sufficient for mechanical, air pressure-independent securing. B. is arranged on a door longitudinal side (vertical edge), the locking aids mentioned are arranged on both sides. Several of them can also be provided on one side of the door.

Eine weitere besondere Maßnahme betrifft die Notentriegelung des Türblatts mittels des Nothahns. Weil das Drehfallenschloß im Türblatt selbst untergebracht ist, wurde die Möglichkeit gefunden, mittels einer mechanischen Wirkverbindung zwischen dem Nothahn und dem am Türrahmen befestigten Schließkeil dessen normalerweise geschlossene Schließöse bedarfsweise zu öffnen, so daß das Türblatt auch ohne Öffnen des Schlosses selbst nach Betätigung des Nothahns einfach aufgestoßen werden kann. Es ist zwar z. B. bei elektrisch von den verschiedenen Wohnungen aus zu öffnenden Haustürschlössern mit Klinkenfallen allgemein bekannt, daß das nutförmige Widerlager der jeweiligen Falle, das bei geschlossener Tür auf diese einwirkende Kräfte in Öffnungsrichtung über eine Abstützung auffängt, durch vorübergehendes Aufheben der Abstützung freigängig schwenkbar gemacht werden kann, so daß sich die Tür ohne Einwirkung auf das Schloß bzw. die Falle selbst durch einen Besucher von außen öffnen läßt. Derartige Anordnungen geben jedoch keinerlei Hinweis auf die Möglichkeit, eine geschlossene Schließöse eines Schließkeils der in Rede stehenden Art zu öffnen.Another special measure concerns the emergency release of the door leaf by means of the emergency valve. Because the rotary latch lock is housed in the door leaf itself, the possibility was found to open the normally closed locking eyelet, if necessary, by means of a mechanical connection between the emergency valve and the locking wedge attached to the door frame, so that the door leaf can be opened without opening the lock, even after the emergency valve has been operated. Although it is e.g. B. in electrically openable from the different apartments door locks with latch latches generally known that the groove-shaped abutment of the respective case, which absorbs forces acting on them in the opening direction via a support when the door is closed, can be made freely pivotable by temporarily lifting the support , so that the door can be opened by a visitor from outside without affecting the lock or the latch itself. Such arrangements, however, give no indication of the possibility of opening a closed locking eye of a locking wedge of the type in question.

Weitere Einzelheiten und Vorteile der Sicherheitsverriegelung gehen aus der Zeichnung eines Ausführungsbeispiels und deren sich hier anschließender eingehender Beschreibung hervor.Further details and advantages of the safety lock can be seen from the drawing of an exemplary embodiment and the detailed description that follows here.

Es zeigen

Figur 1
eine schematische Zusammenstellung der Ausstattung eines Türblatts und seines Rahmens mit Komponenten der Sicherheitsverriegelung,
Figur 2
eine Ansicht eines in der Sicherheitsverriegelung verwendeten Drehfallenschlosses,
Figur 3
eine erste Ansicht eines mit dem Drehfallenschloß korrespondierenden Schließkeils,
Figur 4
eine gegenüber Figur 3 um 90° geklappte Ansicht des Schließkeils,
Figur 5
eine Ansicht eines Türschließhilfeantriebs,
Figur 6
eine gegenüber Figur 5 um 180° geklappte Rückansicht des Türschließhilfeantriebs,
Figur 7
eine Ansicht eines Steuergeräts für die Türschließhilfeantriebe.
Show it
Figure 1
a schematic compilation of the equipment of a door leaf and its frame with components of the safety lock,
Figure 2
a view of a rotary latch lock used in the safety lock,
Figure 3
1 a first view of a locking wedge corresponding to the rotary latch lock,
Figure 4
3 shows a view of the locking wedge which is folded by 90 °,
Figure 5
a view of a door closing aid drive,
Figure 6
5 shows a rear view of the door closing aid drive that is folded by 180 ° compared to FIG.
Figure 7
a view of a control unit for the door closing aid drives.

In Figur 1 ist ein Türblatt 1 einer Außenschwingtür, das in geschlossener Stellung eine durch einen Rahmen 2 gebildete Türöffnung in einer Fahrzeugseitenwand verschließt - wobei natürlich nicht dargestellte elastische Dichtungen rundum die verbleibenden Spalte schließen -, mit schematisch angedeuteten und später noch näher beschriebenen Komponenten der Sicherheitsverriegelung in einer Ansicht von außerhalb des Fahrzeugs dargestellt. Die Sicherheitsverriegelung umfaßt ein Drehfallenschloß 3 (Fig. 2), das innerhalb des Türblattes 1 selbst angeordnet ist und mit einem am Rahmen 2 einstellbar angeordneten Schließkeil 4 korrespondiert. Zum Öffnen des Drehfallenschlosses 3 auf Knopfdruck ist ebenfalls innerhalb des Türblattes 1 ein Türöffnerantrieb 5 vorgesehen, der durch Fremdkraft, also elektrisch oder - vorzugsweise - pneumatisch betrieben werden kann und über eine gestrichelt angedeutete Wirkverbindung 6, z. B. ein Gestänge, auf eine Sperrklinke (Fig. 2) des Drehfallenschlosses 3 einwirkt. Außerdem sind dem Drehfallenschloß 3 an der Außenseite des Türblatts 1 ein Türziehgriff 7 und ein Schließzylinder 8 zugeordnet.
Am Türrahmen 2 ist innen ein Nothahn 9 angeordnet, der entsprechend den geltenden Sicherheitsbestimmungen in bekannter Weise zum Drucklosmachen (Entlüften) des pneumatischen Türschließsystems dient und außerdem über eine gestrichelte Wirkverbindung 10 mit dem Schließkeil 4 gekuppelt ist. Diese mechanische Funktionseinheit wird später noch eingehend anhand von Figuren 3 und 4 beschrieben.
Zusätzlich ist auch an der Außenseite des Fahrzeugs unter einer im Notfall zur Hilfeleistung von außen zu zerbrechenden durchsichtigen Scheibe ein Nothahn 9' zur Entlüftung des Türdruckluftsystems vorgesehen. Wird dieser Nothahn 9' betätigt, so kann das Türblatt 1 durch Ziehen an dem Türziehgriff 7 geöffnet werden, vorausgesetzt, das Drehfallenschloß 3 ist über den Schließzylinder 8 entriegelt. Bei verriegeltem Schloß ist daher jeder Mißbrauch des außenseitigen Nothahns 9' zu einem unbefugten Eindringen in das Fahrzeug ausgeschlossen.In Figure 1 is a door leaf 1 of an outer swing door, which in the closed position closes a door opening formed by a frame 2 in a vehicle side wall - with, of course, elastic seals (not shown) closing around the remaining gaps - with schematically indicated components of the safety lock which will be described later shown in a view from outside the vehicle. The safety lock comprises a rotary latch lock 3 (FIG. 2) which is arranged within the door leaf 1 itself and corresponds to a locking wedge 4 which is arranged on the frame 2 in an adjustable manner. To open the rotary latch lock 3 at the push of a button, a door opener drive 5 is also provided within the door leaf 1, which can be operated by external force, that is to say electrically or — preferably — pneumatically and via an active connection 6 indicated by dashed lines, for. B. a linkage, acts on a pawl (Fig. 2) of the rotary latch lock 3. In addition, the rotary latch lock 3 on the outside of the door leaf 1 is assigned a door pull handle 7 and a locking cylinder 8.
On the inside of the door frame 2 there is an emergency valve 9 which, in accordance with the applicable safety regulations, is used in a known manner for depressurizing (venting) the pneumatic door locking system and is also coupled to the locking wedge 4 via a dashed active connection 10. This mechanical functional unit will be described in detail later with reference to FIGS. 3 and 4.
In addition, on the outside of the vehicle, under a transparent one to be broken in an emergency to help from outside Washer provided an emergency valve 9 'for venting the door compressed air system. If this emergency valve 9 'is actuated, the door leaf 1 can be opened by pulling the door pull handle 7, provided the rotary latch lock 3 is unlocked via the locking cylinder 8. With the lock locked, any misuse of the outside emergency valve 9 'to prevent unauthorized entry into the vehicle is therefore excluded.

Am Türrahmen 2 sind auch Schließhilfevorrichtungen 11 angebracht die ihrerseits mit an dem Türblatt 1 einstellbar befestigten Schließbolzen 12 zusammenwirken. Zur Steuerung dieser Schließhilfevorrichtungen ist ebenfalls am Türrahmen ein Steuergerät 13 vorgesehen, welches von einem am Türblatt 1 einstellbar befestigten Betätigungsbauteil 14 beaufschlagbar ist, wenn sich das Türblatt 1 seiner geschlossenen Stellung annähert. Bei den großen Gewichten von derartigen Türblättern ist es nicht möglich, die Schließhilfskräfte in bekannter Weise allein z. B. über die Schloßdrehfalle einzuleiten. Andererseits kann nun aber das Drehfallenschloß einfach und kompakt aufgebaut sein. Ein nur schematisch angedeuteter pneumatischer Hauptantrieb 15 des Türblatts 1 kann von konventioneller Bauart (Wandermutter/Spindel) und am Fahrzeugchassis befestigt sein, wobei er das Türblatt im Unterschied zu gängigen Hauptantrieben in der geschlossenen Stellung nicht anzuheben braucht. Er besteht im wesentlichen aus einem Hubzylinder 16, dessen Hubbewegung mechanisch in eine Drehbewegung einer Ausgangs- bzw. Antriebswelle 17 übersetzt wird. Mit der Antriebswelle wiederum sind in bekannter Weise Schwenkarme 18 verbunden, die an dem Türblatt 1 in einer Achse 19 angelenkt sind. Das Türblatt wird durch die Schwenkarme 18 in der Weise geführt, daß es senkrecht zu der Fahrzeugwand in die durch den Rahmen 2 eingefaßte Öffnung hinein- bzw. aus dieser herausgeschwenkt werden kann.Locking devices 11 are also attached to the door frame 2, which in turn interact with locking bolts 12 which are adjustably fastened to the door leaf 1. To control these locking aids, a control device 13 is also provided on the door frame, which can be acted upon by an actuating component 14 which is adjustably fastened to the door leaf 1 when the door leaf 1 approaches its closed position. With the large weights of such door leaves, it is not possible to use the closing auxiliary forces in a known manner alone, for. B. initiate on the lock rotary latch. On the other hand, the rotary latch lock can now be constructed simply and compactly. A pneumatic main drive 15 of the door leaf 1, which is only indicated schematically, can be of a conventional type (traveling nut / spindle) and attached to the vehicle chassis, in contrast to conventional main drives it does not have to lift the door leaf in the closed position. It essentially consists of a lifting cylinder 16, the lifting movement of which is mechanically translated into a rotary movement of an output or drive shaft 17. In turn, pivot arms 18 are connected to the drive shaft, which are articulated on the door leaf 1 in an axis 19. The door leaf is guided by the swivel arms 18 in such a way that it can be swiveled into or out of the opening framed by the frame 2 perpendicular to the vehicle wall.

Gemäß der Darstellung in Figur 2 weist das einfache Drehfallenschloß 3 ein Gehäuse 20 auf, in welchem in bekannter Weise eine Gabeldrehfalle 21 mit einem zwischen zwei Schenkeln 21V (Vorrast) und 21H (Hauptrast) sich öffnenden Gabelmaul 22 um eine Achse 23 sowie eine Sperrklinke 24 um eine Achse 25 schwenkbar gelagert sind. Die Gabeldrehfalle 21 ist in ihrer Freigabestellung gezeichnet und in Freigaberichtung (hier: im Uhrzeigersinn) durch eine Drehfeder (durch Pfeil an Achse 23 angedeutet) vorgespannt, während die Sperrklinke 24 in ihre Sperrstellung in Richtung auf die Gabeldrehfalle 21 ebenfalls im Uhrzeigersinn durch eine andere Drehfeder (durch Pfeil an Achse 25 angedeutet) vorgespannt ist.
Wenn die Gabeldrehfalle 21 in der - strichpunktiert angedeuteten - Sperrstellung steht und das Türblatt 1 sich in seiner geschlossenen Stellung befindet, umfaßt das Gabelmaul 22 einen Bolzen bzw. einen Teil einer Schließöse des Schließkeils 4 (gestrichelt angedeutet, vgl. Fig. 3), während die Sperrklinke 24 in der strichpunktiert angedeuteten Position außen an dem Schenkel 21H und damit an der Hauptrast der Gabeldrehfalle 21 angreift und diese in der Sperrstellung festlegt. Zum Öffnen des Drehfallenschlosses 3 bzw. zum Verbringen der Gabeldrehfalle 21 von der Sperr- in die Freigabestellung ist es notwendig, die Sperrklinke 24 entgegen ihrer Vorspannkraft außer Eingriff mit der Hauptrast des Schenkels 21H zu bringen. Zu diesem Zweck kann die Sperrklinke 23 über ein durch eine doppelte Strichellinie angedeutetes Gestänge oder dgl. (welches zu der in Figur 1 angedeuteten Wirkverbindung 6 gehört) entweder manuell z. B. mittels des in Figur 1 gezeigten Türziehgriffs 7 oder durch Fremdkraft mittels des Türöffnerantriebs 5 ausgehoben werden, worauf die Gabeldrehfalle 21 durch ihre Drehfeder verschwenkt wird und den Bolzen bzw. den Schließkeil freigibt. An der Sperrklinke 24 ist zu diesem Zweck ein Anlenkpunkt 26 vorgesehen, mit dem das Aushebegestänge gekuppelt werden kann, das anderseitig in der üblichen Weise entkuppelbar mit dem Türziehgriff und fest mit dem Türöffnerantrieb verbunden ist.According to the illustration in FIG. 2 , the simple rotary latch lock 3 has a housing 20, in which, in a known manner, a fork catch 21 with a fork mouth 22 opening between two legs 21V (preliminary locking) and 21H (main locking) about an axis 23 and a pawl 24 are pivotally mounted about an axis 25. The fork rotary latch 21 is drawn in its release position and is biased in the release direction (here: clockwise) by a torsion spring (indicated by the arrow on axis 23), while the pawl 24 is in its locked position in the direction of the fork rotary latch 21 likewise clockwise by another torsion spring (indicated by arrow on axis 25) is biased.
When the fork rotary latch 21 is in the locked position - indicated by dash-dotted lines - and the door leaf 1 is in its closed position, the fork mouth 22 comprises a bolt or part of a locking eye of the locking wedge 4 (indicated by dashed lines, see FIG. 3), while the pawl 24 in the position indicated by dash-dotted lines acts on the outside of the leg 21H and thus on the main catch of the fork rotary latch 21 and fixes it in the locked position. In order to open the rotary latch lock 3 or to move the fork rotary latch 21 from the locking position into the release position, it is necessary to bring the locking pawl 24 out of engagement with the main catch of the leg 21H against its biasing force. For this purpose, the pawl 23 can either by means of a link indicated by a double dash line or the like (which belongs to the active connection 6 indicated in Figure 1) either manually. B. by means of the door pull handle 7 shown in Figure 1 or by external force by means of the door opener drive 5, whereupon the fork rotary latch 21 is pivoted by its torsion spring and releases the bolt or the locking wedge. For this purpose, a pivot point 26 is provided on the pawl 24, with which the lifting linkage can be coupled, the other side is uncoupled in the usual way with the door pull handle and firmly connected to the door opener drive.

Die in Figur 1 gezeigte Anordnung des Drehfallenschlosses 3 und seiner Peripherie (Türöffnerantrieb 5, Wirkverbindung 6, Türziehgriff 7, Schließzylinder 8) in dem Türblatt 1 selbst hat zum einen funktionelle Gründe, weil z. B. das Türblatt von Hand durch Ziehen an dem Türziehgriff 7 geöffnet werden können soll. Zum anderen bietet das Türblatt 1 auch mehr Einbauraum an als der Türrahmen 2.The arrangement shown in Figure 1 of the rotary latch lock 3 and its periphery (door opener drive 5, active connection 6, door pull handle 7, lock cylinder 8) in the door leaf 1 itself has a functional reason, because z. B. the door leaf should be able to be opened by hand by pulling the door pull handle 7. On the other hand, the door leaf 1 also offers more installation space than the door frame 2.

Der Schließkeil 4 hat, wie Figur 3 in einer Draufsicht und Figur 4 in einer Seitenansicht zeigt, in an sich bekannter Weise eine normalerweise geschlossene Schließöse 27. In dieser Schließöse 27 wird der Schenkel 21H der Gabeldrehfalle 21, der die mit der Sperrklinke 24 korrespondierende Hauptrast aufweist, nahezu formschlüssig aufgenommen, wie in Figur 3 gestrichelt angedeutet. Zusätzlich zeigt ein in den Schenkelquerschnitt eingezeichneter Pfeil die Öffnungsrichtung, in welche sich das Türblatt 1 und das Drehfallenschloß 3 beim Öffnen bewegen. In seiner vorliegenden Konfiguration bietet der Schließkeil 4 neben der mechanischen Festlegung des Türblatts 1 im Zusammenwirken mit der Gabeldrehfalle 21 noch die zusätzliche Möglichkeit, bei Betätigung des Nothahns 9 das Türblatt 1 unverzüglich und ohne Einwirkung auf das Drehfallenschloß 3 selbst zu öffnen.
Der Schließkeil 4 besteht zu diesem Zweck aus mehreren Teilen, nämlich zunächst aus einer Grund- oder Trägerplatte 28, die am Türrahmen 2 befestigt ist, einem fest mit dieser verbundenen Winkelstück 29 mit einem freien Ende 29E, einem um eine Achse 30 schwenkbar an der Trägerplatte 28 angelenkten bewegbaren Winkelstück 31 mit einem freien Ende 31E und einem um eine Achse 32 ebenfalls schwenkbar an der Trägerplatte 28 angelenkten, zweiarmigen Sperrhebel 33. Das feste Winkelstück 29 und das bewegbare Winkelstück 31 schließen zwischen sich die solchermaßen zweigeteilte Schließöse 27 ein, wobei ihre freien Enden 29E bzw. 31E zumindest aneinanderliegen. Es versteht sich, daß abweichend von der dargestellten Ausführung der freien Enden 29E und 31E auch überlappende oder ineinandergreifende Formen vorgesehen werden können, insbesondere wenn eine Abstützung des bewegbaren Winkelteils 31 an dem festen Winkelteil 29 auch in Achsrichtung der Schließöse 27 - die in Figur 3 senkrecht zur Zeichnungsebene verläuft - für notwendig erachtet werden sollte.The locking wedge 4 has, as shown in FIG. 3 in a top view and FIG. 4 in a side view, a normally closed locking eyelet 27 in a manner known per se. In this locking eyelet 27 is the leg 21H of the fork rotary latch 21, which is the main catch corresponding to the pawl 24 has, almost positively recorded, as indicated by dashed lines in Figure 3. In addition, an arrow drawn into the leg cross section shows the opening direction in which the door leaf 1 and the rotary latch lock 3 move when opening. In its present configuration, the locking wedge 4 offers, in addition to the mechanical fixing of the door leaf 1 in cooperation with the fork rotary latch 21, the additional possibility of opening the door leaf 1 itself immediately without actuation of the rotary latch lock 3 when the emergency valve 9 is actuated.
For this purpose, the locking wedge 4 consists of several parts, namely first of all a base or carrier plate 28 which is fastened to the door frame 2, an angle piece 29 which is fixedly connected to the latter and has a free end 29E, one pivotable about an axis 30 on the carrier plate 28 articulated movable angle piece 31 with a free end 31E and a two-armed locking lever 33 also articulated on the support plate 28 and also pivotable about an axis 32. The fixed angle piece 29 and that movable angle piece 31 enclose between them the two-part locking eye 27, their free ends 29E and 31E at least abutting one another. It goes without saying that, deviating from the illustrated embodiment of the free ends 29E and 31E, overlapping or interlocking shapes can also be provided, in particular if the movable angle part 31 is also supported on the fixed angle part 29 in the axial direction of the locking eye 27 - which is vertical in FIG. 3 to the drawing level - should be considered necessary.

An dem von dem bewegbaren Winkelstück 31 wegweisenden Arm 34 des zweiarmigen Sperrhebels 33 greift die bereits erwähnte mechanische Wirkverbindung 10 zwischen dem innenseitigen Nothahn 9 und dem Schließkeil 4 an (in Fig. 4 durch doppelte Strichellinie angedeutet), wozu dieser Arm mit einem Anlenkpunkt bzw. einer Anlenkachse 35 versehen ist. Der andere Arm 36 des zweiarmigen Sperrhebels 33 liegt in Ruhestellung mit seiner Stirnseite bzw. seinem freien Ende 36E an einer von der Schließöse 27 wegweisenden Außenfläche des bewegbaren Winkelstücks 31 mit Abstand von der Achse 30 im Bereich des Scheitels der Abwinkelung des Winkelstücks 31 an, so daß dieses nicht (im Uhrzeigersinn) um seine Achse 30 verschwenkbar ist, sondern die Schließöse 27 im geschlossenen Zustand hält. Die Außenkante des bewegbaren Winkelteils 31 dient gleichzeitig als Anschlag für das freie Ende des Sperrhebels 33; die auf letzteren einwirkende Federkraft leistet somit ebenfalls einen Beitrag zur Sicherung der geschlossenen Stellung der Schließöse 27.
Die Wirkverbindung 10 kann je nach konstruktiven Gegebenheiten z. B. als Bowdenzug, Stahlseil oder Gestänge ausgeführt werden.On the arm 34 of the two-armed locking lever 33 pointing away from the movable angle piece 31, the already mentioned mechanical operative connection 10 acts between the inside emergency valve 9 and the closing wedge 4 (indicated by the double dash line in FIG. 4), for which purpose this arm has a pivot point or a pivot axis 35 is provided. The other arm 36 of the two-armed locking lever 33 rests in the rest position with its end face or free end 36E on an outer surface of the movable angle piece 31 pointing away from the locking eye 27 at a distance from the axis 30 in the region of the apex of the angle piece 31, so that this is not (clockwise) pivotable about its axis 30, but keeps the locking eye 27 in the closed state. The outer edge of the movable angle part 31 also serves as a stop for the free end of the locking lever 33; the spring force acting on the latter thus also makes a contribution to securing the closed position of the locking eye 27.
The active connection 10 can, depending on the structural conditions, for. B. as a Bowden cable, steel cable or linkage.

Aus Figur 4 geht die Wirkbeziehung zwischen dem zweiarmigen Sperrhebel 33 und dem bewegbaren Winkelstück 31 noch besser hervor. Beide sind durch Drehfederkräfte (Feder 37 auf Achse 30 bzw. Feder 38 auf Achse 32) in ihre durchgezeichnet dargestellte Ruhelage vorgespannt.
Strichpunktiert ist in Figur 4 auch die Ausrücklage des zweiarmigen Sperrhebels 33 dargestellt, die sich einstellt, wenn der Nothahn 9 betätigt wird und der Sperrhebel 33 über die Wirkverbindung 10 gegen die Kraft der Feder 38 ausgerückt wird. Ersichtlich kann in dieser Stellung des Sperrhebels 33 das bewegbare Winkelteil 31 - gegen die Kraft seiner Rückstellfeder 37 - durch Belastung in der in Figur 3 durch Pfeil angedeuteten Öffnungsrichtung verschwenkt werden (Stellung strichpunktiert in Fig. 3 skizziert), so daß der Schenkel 21H der Gabeldrehfalle 21 aus der sich öffnenden Schließöse 27 herausgezogen werden kann. Das Drehfallenschloß 3 kann dabei geschlossen bleiben, d. h. es ist möglich, das Türblatt 1 aufzustoßen, ohne vorher auf die Sperrklinke 24 einzuwirken.From Figure 4, the engagement between the two-armed locking lever 33 and the movable angle piece 31 is clear even better. Both are shown by their torsion spring forces (spring 37 on axis 30 or spring 38 on axis 32) Prestressed at rest.
The broken-out position of the two-armed locking lever 33 is also shown in dash-dotted lines in FIG. 4, which occurs when the emergency valve 9 is actuated and the locking lever 33 is disengaged via the operative connection 10 against the force of the spring 38. Obviously, in this position of the locking lever 33, the movable angle part 31 - against the force of its return spring 37 - can be pivoted by loading in the opening direction indicated by the arrow in FIG. 3 (position shown in broken lines in FIG. 3), so that the leg 21H of the fork rotary latch 21 can be pulled out of the opening locking eyelet 27. The rotary latch lock 3 can remain closed, ie it is possible to open the door leaf 1 without first acting on the pawl 24.

Da es gelegentlich vorkommen kann, daß ein Fahrgast den Nothahn 9 fahrlässig ohne Notwendigkeit betätigt, wird vorzugsweise eine zweistufige Betätigung vorgesehen, in deren erster Stufe nur die Systembelüftung bewirkt wird, während die zweite Stufe zum Schwenken des Sperrhebels 33 und Aufheben der Abstützung des bewegbaren Winkelteils nur durch eine noch weitergehende Betätigung des - in der Regel mit einem Knebeldrehknopf zu betätigenden - Nothahns 9 erreicht werden kann. Vorzugsweise wird in der Wirkverbindung 10 zwischen Nothahn 9 und Sperrhebel 33 ein sich über die erste Betätigungsstufe des Nothahns 9 erstrekkender Leergang vorgesehen. Zusätzlich kann zwischen der ersten und der zweiten Stufe auch noch ein Druckpunkt vorgesehen werden, um eine taktile Hemmschwelle vor der Freigabe der mechanischen Zuhaltung zu bilden. Ein derartiger zweistufiger Ablauf wird prinzipiell auch bereits beim gattungsbildenden Stand der Technik vorgeschlagen.Since it can occasionally happen that a passenger negligent actuates the emergency valve 9, a two-stage actuation is preferably provided, in the first stage of which only the system ventilation is effected, while the second stage for pivoting the locking lever 33 and releasing the support of the movable angle part can only be achieved by an even further actuation of the emergency valve 9, which can generally be operated with a knob. Preferably, in the operative connection 10 between the emergency valve 9 and the locking lever 33, an idle gear extending over the first actuation stage of the emergency valve 9 is provided. In addition, a pressure point can also be provided between the first and the second stage in order to form a tactile inhibition threshold before the mechanical guard locking is released. Such a two-stage process is in principle already proposed in the generic state of the art.

In Figur 5 ist als weiteres Detail eine der in Figur 1 bereits angedeuteten Schließhilfevorrichtungen 11 dargestellt. An einer Grundplatte 39 ist auf einer Seite - diese ist im Einbauzustand in der Türöffnung nicht sichtbar - ein pneumatischer einfachwirkender, in die Ruhelage durch Federkraft vorgespannter Schließhilfeantrieb 40 in Form eines pneumatischen Stellzylinders mit einem Druckluftanschluß 40P schwenkbar gelagert, dessen linear bewegliches Stellglied 41 mit einem Arm 42 eines ebenfalls an der Grundplatte 39 gelagerten zweiarmigen Hebels 43 gekuppelt ist. Durchgezogen ist die - durch eine Rückstellfeder nach Druckabfall hergestellte - unbetätigte Ruhestellung gezeichnet, während strichpunktiert die - durch Druckbeaufschlagung - voll ausgefahrene Stellung des Stellglieds 41 und des zweiarmigen Hebels 43 angedeutet ist. Die Schwenkachse 44 des zweiarmigen Hebels 43 durchsetzt die Grundplatte 39, wobei ein zweiter Arm 45 gegenüber dem ersten Arm 42 auf der anderen - im Einbauzustand in der Türöffnung sichtbaren - Seite der Grundplatte 39 angeordnet ist. Diese Seite mit dem Arm 45 ist in Figur 6 gezeigt, aus der hervorgeht, daß der Arm 45 hakenoder nasenartig geformt ist. Auf derselben Seite der Grundplatte 39 ist ferner noch ein prismatisches Zentrierstück 46 befestigt. Ohne Darstellung des Türblatts 1 ist hier noch ein trapezförmiger Querschnitt eines der ebenfalls bereits in Figur 1 angedeuteten, am Türblatt 1 befestigten Schließbolzen 12 im Verhältnis zu dem zweiten Arm 45 gestrichelt in der Annäherungsstellung - in welcher das Türblatt 1 kurz vor seiner geschlossenen Stellung steht - und strichpunktiert in der gesicherten Lage gezeigt. In letzterer ist der Schließbolzen 12 ersichtlich zwischen dem zweiten Arm 45 und dem Zentrierstück 46 eingeklemmt.
Im Einbauzustand verläuft die Schwenkachse 44 des zweiarmigen Hebels 43 senkrecht zur Bewegungsrichtung des Türblatts 1 beim Eintauchen in die Türöffnung. Wird also der zweite Arm 45 gemäß Figur 6 im Gegenuhrzeigersinn geschwenkt, so zieht er den Schließbolzen 12 gegen das Zentrierstück 46 bzw. in dessen prismatische Ausnehmung und darüber das Türblatt 1 in seine geschlossene Stellung. Hieraus ergibt sich eine quasi formschlüssige Festlegung des Türblatts 1 in allen Richtungen. FIG. 5 shows a further detail of one of the locking aid devices 11 already indicated in FIG. 1. At a Base plate 39 is pivotably mounted on one side - this is not visible in the door opening in the installed state - a pneumatic single-acting locking aid drive 40 which is preloaded in the rest position by spring force in the form of a pneumatic actuating cylinder with a compressed air connection 40P, whose linearly movable actuator 41 has an arm 42 a two-armed lever 43 also coupled to the base plate 39 is coupled. The unactuated rest position - produced by a return spring after a drop in pressure - is drawn through, while the dot-dash line indicates the fully extended position of the actuator 41 and the two-armed lever 43 by pressurization. The pivot axis 44 of the two-armed lever 43 passes through the base plate 39, a second arm 45 being arranged opposite the first arm 42 on the other side of the base plate 39, which is visible in the door opening in the installed state. This side with the arm 45 is shown in Figure 6 , from which it can be seen that the arm 45 is shaped like a hook or nose. On the same side of the base plate 39, a prismatic centering piece 46 is also attached. Without depicting the door leaf 1, here is a trapezoidal cross section of one of the locking bolts 12, also indicated in FIG. 1 and fastened to the door leaf 1, in broken lines in relation to the second arm 45 in the approach position - in which the door leaf 1 is just before its closed position - and shown in dashed lines in the secured position. In the latter, the locking bolt 12 can be seen clamped between the second arm 45 and the centering piece 46.
In the installed state, the pivot axis 44 of the two-armed lever 43 extends perpendicular to the direction of movement of the door leaf 1 when it is immersed in the door opening. If the second arm 45 is pivoted counterclockwise according to FIG. 6, it pulls the locking pin 12 against the centering piece 46 or in its prismatic recess and above it the door leaf 1 into its closed position Position. This results in a virtually positive locking of the door leaf 1 in all directions.

Zur pneumatischen Ansteuerung der Schließhilfeantriebe 11 ist das in Figur 7 im Einbauzustand gezeigte Steuergerät 13 vorgesehen. Die Figur zeigt den Türrahmen 2 und das Türblatt 1 mit den den dazwischenliegenden Spalt abdeckenden Dichtungen in einer Schnittansicht. Das Steuergerät 13 ist auf einer Grundplatte 47 montiert, welche ihrerseits an den Türrahmen 2 angeschraubt ist. Es umfaßt einen federnd vorgespannten Schwenkhebel 48, der mit dem seinerseits am Türblatt 1 befestigten, bereits in Figur 1 angedeuteten einstellbaren Betätigungsbauteil 14 korrespondiert und bereits in seiner Ruhelage in dessen Bewegungsbahn hineinragt. Die Ruhelage ist gegenüber der gezeigten Betätigungslage im Uhrzeigersinn geschwenkt. Trifft das Betätigungsbauteil 14 auf den Schwenkhebel 48 und bringt diesen in die gezeichnete Stellung, so wird mittels des Schwenkhebels 48 ein nicht näher dargestelltes Wegeventil des Steuergeräts, das ebenfalls an der Grundplatte 47 befestigt sein kann, umgeschaltet. Dieses verbindet im ungeschalteten Ruhezustand die Arbeitskammern der Schließhilfeantriebe 40 der Schließhilfevorrichtungen 11 mit der Atmosphäre, während es im geschalteten Zustand die Zufuhr von Druckluft zu den Stellzylindern ermöglicht. Die Druckluft wird dabei von der Versorgung des Hauptantriebs geliefert.
Ersichtlich wird also die Schließhilfe bzw. Kraftunterstützung durch die Bewegung des Türblatts 1 selbst gesteuert.The control device 13 shown in FIG. 7 in the installed state is provided for the pneumatic control of the locking aid drives 11. The figure shows the door frame 2 and the door leaf 1 with the seals covering the gap between them in a sectional view. The control unit 13 is mounted on a base plate 47, which in turn is screwed onto the door frame 2. It comprises a resiliently pretensioned pivot lever 48, which corresponds to the adjustable actuating component 14, which in turn is attached to the door leaf 1 and is already indicated in FIG. 1, and protrudes into its movement path even in its rest position. The rest position is pivoted clockwise relative to the actuation position shown. If the actuating component 14 hits the swivel lever 48 and brings it into the position shown, then a swivel lever 48 switches a control valve, not shown, of the control unit, which can also be fastened to the base plate 47. In the non-switched idle state, this connects the working chambers of the locking aid drives 40 of the locking aid devices 11 to the atmosphere, while in the switched state it enables the supply of compressed air to the actuating cylinders. The compressed air is supplied by the main drive.
Obviously, the closing aid or power assistance is controlled by the movement of the door leaf 1 itself.

Im folgenden wird nun die Funktionsweise der Sicherheitsverriegelung kurz beschrieben.The operation of the safety lock is now briefly described below.

Grundsätzlich kann das geschlossene Türblatt 1 gegen Öffnen von außen durch Schlüsselbetätigung des Schließzylinders 8 verriegelt werden, wobei in bekannter Weise der Türziehgriff 7 von dem Betätigungsgestänge des Drehfallenschlosses 3 entkuppelt und damit freigängig wird. Sollte ein Drehfallenschloß an einem besonders großen Türblatt nicht zur Sicherung ausreichen, so ist es ohne weiteres möglich, die Anordnung zu verdoppeln, wobei z. B. auf beiden Längsseiten des Türblatts je ein Schloß angeordnet werden kann, welche dann beide mit je einem Sicherheitsschließkeil gemäß Figuren 4 und 5 korrespondieren. Durch die Schließhilfeantriebe wird in jedem Fall sicheres Einrasten der Drehfallenverschlüsse gewährleistet.
Im Normalfall wird an einem Omnibus nur ein Schließzylinder an der Passagiereinstiegseite - in der Regel an der vorderen Tür - vorgesehen sein, so daß im vorliegenden Fall der Schloßverriegelung die weiteren Schlösser über zugeordnete Zentralverriegelungs-Stellelemente in gleicher Weise gesichert werden können. Eine weitere Bedienstelle kann sich auf der Fahrerseite im Schließzylinder der Fahrertür befinden. Zu diesem Zweck sind dem Schließzylinder 8 in bekannter Weise elektrische Steuerschalter zugeordnet, welche ihrerseits zur elektrischen Steuerung von Magnetventilen dienen, über welche die erwähnten Zentralverriegelungs-Stellelemente an Luftdruck anschließbar sind. Zusätzlich können diese Schalter natürlich in ebenfalls bekannter Weise auch zur Steuerung einer Alarmanlage oder sonstiger Einbruchsicherungssysteme verwendet werden.
Zum Öffnen des Türblatts 1 muß, ausgehend vom verriegelten Zustand, zuerst der Schließzylinder 8 mittels Schlüssels im Entriegelungssinn betätigt werden. Es kann hierbei in vorteilhafter Weise ein Steuerschalter am Schließzylinder 8 dazu vorgesehen bzw. benutzt werden, analog zu dem üblichen Fahrertaster, der zum Türöffnen durch den Fahrer von innen vorgesehen ist, bzw. funktional parallel zu diesem gleichzeitig mit der entriegelnden Schlüsselbetätigung des Schließzylinders 8 den luftdruckunterstützten Öffnungsvorgang einzuleiten. Es kann aber auch an der Außenseite des Fahrzeugs ein separater Drucktaster für den Öffnungsvorgang vorgesehen werden, der allerdings nur bei entriegeltem Drehfallenschloß bzw. Schließzylinder elektrisch wirksam geschaltet sein darf.
Diese Anordnung hat den Vorteil, daß die mechanische Türentriegelung bereits vor der Druckbeaufschlagung vollzogen ist, so daß weder ein durch den Öffnungsdruck des Hauptantriebs verursachtes Verklemmen der Schloßmechanik noch ein plötzliches Aufprallen des Türblatts nach mechanischer Freigabe vorkommen kann.In principle, the closed door leaf 1 can be locked against opening from the outside by key actuation of the locking cylinder 8, the door pull handle 7 from the actuating linkage of the rotary latch lock 3 uncoupled and thus becomes free. If a rotary latch lock on a particularly large door leaf is not sufficient to secure it, it is easily possible to double the arrangement. B. a lock can be arranged on both long sides of the door leaf, which then each correspond to a safety striker according to Figures 4 and 5. The locking aid drives ensure that the rotary latch locks engage securely.
Normally, only one lock cylinder will be provided on an omnibus on the passenger entry side - usually on the front door - so that in the present case the lock lock can be used to lock the other locks in the same way using assigned central locking control elements. Another control point can be located on the driver's side in the lock cylinder of the driver's door. For this purpose, the locking cylinder 8 is associated in a known manner with electrical control switches, which in turn serve for the electrical control of solenoid valves, via which the central locking control elements mentioned can be connected to air pressure. In addition, these switches can of course also be used in a known manner to control an alarm system or other burglar alarm systems.
To open the door leaf 1, starting from the locked state, the lock cylinder 8 must first be operated by means of a key in the unlocking direction. In this case, a control switch on the locking cylinder 8 can be provided or used in an advantageous manner, analogously to the conventional driver button which is provided for opening the door by the driver from the inside, or functionally parallel to this at the same time as the unlocking key actuation of the locking cylinder 8 initiate air-assisted opening process. However, a separate push button for the opening process can also be provided on the outside of the vehicle may only be activated electrically when the rotary latch lock or lock cylinder is unlocked.
This arrangement has the advantage that the mechanical door unlocking is carried out before the pressure is applied, so that neither a jamming of the lock mechanism caused by the opening pressure of the main drive nor a sudden impact of the door leaf after mechanical release can occur.

Von innen kann die Tür auch nach Verriegelung von außen mittels des genannten Fahrertasters geöffnet werden, solange die pneumatische Hilfskraft zur Verfügung steht, weil der Türöffnerantrieb 5 im Gegensatz zum Türziehgriff nicht von der Sperrklinke des Drehfallenschlosses 3 entkuppelt wird.
Der Türöffnerantrieb 5 wird nach dem auslösenden elektrischen Türöffnungssignal grundsätzlich so lange angesteuert, bis der pneumatische Hauptantrieb 15 das Türblatt 1 und das Drehfallenschloß 3 aus der Schließstellung hinausgeschwenkt hat, um vorzeitiges und unerwünschtes Wiedereinrasten des Schlosses 3 zu vermeiden.
Die Schließhilfeantriebe 40 werden beim Öffnen des Türblatts 1 voreilend drucklos geschaltet; sie dienen nur der Kraftunterstützung des Schließvorgangs und der zusätzlichen Türsicherung während des Fahrbetriebs. Hierzu ist zusätzlich zu dem durch das Steuergerät 13 betätigten Ventil noch ein Belüftungsventil in der Versorgungsleitung der Schließhilfeantriebe 40 angeordnet, welches diese auch dann mit der Atmosphäre verbinden kann, wenn das Ventil des Steuergeräts 13 geschaltet ist.From the inside, the door can also be opened after locking from the outside by means of the driver button mentioned, as long as the pneumatic assistant is available, because in contrast to the door pull handle, the door opener drive 5 is not uncoupled from the pawl of the rotary latch lock 3.
The door opener drive 5 is basically controlled after the triggering electrical door opening signal until the pneumatic main drive 15 has pivoted the door leaf 1 and the rotary latch lock 3 out of the closed position in order to avoid premature and undesired re-engagement of the lock 3.
The closing aid drives 40 are prematurely depressurized when the door leaf 1 is opened; they only serve to support the closing process and provide additional door locking during driving. For this purpose, in addition to the valve actuated by the control device 13, a ventilation valve is arranged in the supply line of the locking aid drives 40, which can also connect the latter to the atmosphere when the valve of the control device 13 is switched.

Wenn das Türblatt 1 mittels des Hauptantriebs 15 geschlossen wird, läuft kurz vor dem Erreichen der geschlossenen Stellung - wenn die Schließbolzen 12 des Türblatts 1 sich etwa in der in Figur 6 gestrichelt angedeuteten Stellung befinden - das Betätigungsbauteil 14 an dem Schwenkhebel 48 des Steuergeräts 13 an. Über das dadurch geschaltete zugeordnete Ventil werden die Schließhilfeantriebe 40 mit Druck beaufschlagt und fahren aus. Die mit den Stellgliedern 41 gekuppelten zweiarmigen Hebel 43 erfassen dann mit ihren Armen 45 die Schließbolzen 12 und führen diese in die Zentrierstücke 46 ein, wobei sich die in Figur 6 strichpunktiert angedeutete Endstellung ergibt.If the door leaf 1 is closed by means of the main drive 15, shortly before reaching the closed position - when the locking bolts 12 of the door leaf 1 are approximately in the position indicated by dashed lines in FIG. 6 - the actuating component 14 starts on the pivot lever 48 of the control device 13 . Via the associated valve switched thereby, the Locking aid drives 40 pressurized and extend. The two-armed levers 43 coupled to the actuators 41 then grip the locking bolts 12 with their arms 45 and insert them into the centering pieces 46, the end position indicated by dash-dotted lines in FIG. 6.

Wird nun z. B. in einem Notfall der innen angeordnete Nothahn 9 betätigt, so werden zunächst voreilend alle Schließhilfeantriebe 40 und wird danach das pneumatische Türsystem entlüftet, d. h. auf Atmosphärendruck gebracht. Zusätzlich wird über die Wirkverbindung 10, gegebenenfalls nach Überwinden eines Druckpunkts, der Sperrhebel 33 verschwenkt. Die Schließöse 27 des Sicherheitsschließkeils 4 läßt sich dann in der beschriebenen Weise öffnen und das Türblatt 1 kann ohne weiteres von Hand in Öffnungsrichtung aufgestoßen werden.
Bei einer Betätigung des außen angeordneten Nothahns 9' kann dagegen das Türblatt 1 erst nach Betätigung des Türziehgriffs 7 und Aufheben der mechanischen Schloßsicherung geöffnet werden.Now z. B. in an emergency, the internally arranged emergency valve 9, so all locking aid drives 40 are first leading and then the pneumatic door system is vented, that is brought to atmospheric pressure. In addition, the locking lever 33 is pivoted via the operative connection 10, if necessary after overcoming a pressure point. The locking eyelet 27 of the safety striker 4 can then be opened in the manner described and the door leaf 1 can easily be pushed open in the opening direction by hand.
When the externally arranged emergency valve 9 'is actuated, on the other hand, the door leaf 1 can only be opened after the door pull handle 7 has been actuated and the mechanical lock lock has been released.

Es versteht sich, daß die gängigen Sicherungseinrichtungen gegen das Einklemmen von Personen zwischen Türblatt und Türrahmen auch im Rahmen der hier beschriebenen Sicherheitsverriegelung Verwendung finden.It goes without saying that the common safety devices against jamming of people between the door leaf and door frame are also used in the context of the safety lock described here.

Claims (19)

  1. A safety locking arrangement for a door leaf (1) of a swinging or pivoting door adapted to be opened and closed by an external force, particularly pneumatically, particularly intended for doors of omnibuses and comprising
    - a main drive (15) acting on the door leaf (1) in order to open and close it,
    - a rotary latch (21) which cooperates with an abutment (4) and which, in engagement therewith, mechanically holds the closed door leaf (1) in the closed position,
    - at least one auxiliary closing device (11) which assists the main drive (15) upon closing of the door leaf (1) with regard to the engagement of the rotary latch (21),
    - a drive (5) which produces a release of the abutment (4) by the rotary latch (21) prior to opening of the door leaf (1),
    characterised by
    - the disposition of at least one rotary latch lock (3) with a bifurcated rotary latch (21) and a locking pawl (24) on the door leaf (1),
    - corresponding to the rotary latch lock (3) and disposed on the frame (2) of a door aperture which can be occluded by the door leaf (1), a locking wedge (4) which serves as an abutment and which is constructed to be normally closed but in an emergency however opened by a locking ring (27) which can be opened mechanically via an operative connection (10),
    - the use of a mechanically effective connection (6) to couple to the locking pawl (24) of the rotary latch lock (3) a drive (5) which releases the locking wedge (4) by the rotary latch (21) prior to opening of the door leaf (1),
    - spatially separated from the rotary latch lock (3) an arrangement of at least two auxiliary closing devices (11) which act between the frame (2) and the door leaf (1) and with each of which there is associated an auxiliary closing drive (40) which assists the main drive (15) during closure of the door leaf (1), with regard to engagement of the locking pawl (24) into a main catch (21H) of the rotary latch (21) and fixing of the door leaf (1) in the closed position,
    - a control means (13) actuated at least indirectly by the closing movement of the door leaf (1), for activating the auxiliary locking drives (40) of the auxiliary locking devices (11) when the door leaf (1) approaches its closed position.
  2. A safety locking arrangement according to Claim 1, further containing
    - a safety lock (8) which be locked and unlocked by means of a key and by which the door leaf (1) can be closed against unauthorised opening from outside,
    characterised in that
    the safety lock constructed as a locking cylinder (8) is operatively connected to a switch, particularly an electrical switch, which is connected in parallel functionally with, operable by the motor vehicle driver, an internal push-button switch for opening the door leaf (1) by an outside force and which is only actuated when the key operating the safety lock (8) is moved in an unlocking direction.
  3. A safety locking arrangement according to Claim 1, furthermore containing
    - a safety lock (8) which can be locked and unlocked by means of a key and by which the door leaf (1) can be closed against unauthorised opening from outside,
    characterised in that
    - the safety lock which is constructed as a cylinder lock (8) is operatively connected to an electrical switch which generates a signal when the safety lock is unlocked,
    - and in that there is on the outside of the vehicle a push switch for opening the door leaf (1) and which can only be effectively and electrically operated when the safety lock is released and there is an appropriate signal from the switch connected to the safety lock.
  4. A safety locking arrangement according to one of the preceding Claims,
    characterised in that
    a door pull handle (7) is, for opening of the door leaf (1) from outside, coupled via an operative connection (6) and a coupling separable by releasing of the rotary latch (3) from outside (locking cylinder (8) to the locking pawl (24) of the rotary latch lock (3).
  5. A safety locking arrangement according to one of the preceding Claims,
    characterised by
    - an actuating component (14) mounted adjustably on the door leaf (1) and associated with the control means (13) for the pneumatic auxiliary closing drives (40) of the auxiliary closing devices (11) and
    - a pivot lever (48) which protrudes into the path of movement of the actuating component (14) when the door leaf (1) is approaching its closed position, in order to actuate a valve which connects the pneumatic auxiliary drives (40) to a compressed air supply.
  6. A safety locking arrangement according to Claim 5,
    characterised by
    a venting valve for the single-acting spring-restorable auxiliary locking drives (40) which connects these latter temporarily to atmospheric pressure upon an opening of the closed door leaf (1).
  7. A safety locking arrangement according to one of the preceding Claims,
    comprising furthermore an emergency actuating means (9, 10) for manual mechanical releasing of engagement between the rotary latch (21) and the abutment (4),
    characterised by
    - a movable angled part (31) of the locking wedge (4) having a free end (31E), the said movable part (31) being supported in immovable manner when the locking ring (27) is closed, in order to form an abutment and
    - a releasable brace (locking lever 33) for the movable part (31) so that when the brace is removed, it is possible for the locking ring (25) to open when the abutment is loaded in an opening direction.
  8. A safety locking arrangement according to Claim 7,
    characterised by
    a fixed angled part (29) of the locking ring (27) along with the movable angled part (31) by a free end (29E), whereby the free ends (29E, 21E) of the two parts (29, 31) are, when the locking ring (27) is closed, at least approximately abutting, the two parts (29, 31) being adapted to close the locking ring (27) between them.
  9. A safety locking arrangement according to Claim 7 or 8,
    characterised by
    - extending parallel with the axial direction of the locking ring (27) a spindle (30) by which one arm of the movable angled part (31) of the locking ring (27) is pivotally mounted, the other arm comprising the free end (31E) and whereby
    - external engagement of the bracing means (locking lever 33, member 36) is possible at a distance from the axis (30) in the vicinity of the apex of the angling of the movable part (31).
  10. A safety locking arrangement according to one of the preceding Claims,
    characterised by
    mounted to be pivotable on a spindle (32), a locking lever (33) with one free end (36E) for direct supporting of the movable part (31) which, via a point of articulation (35) of an operative connection (10) is pivotable about its axis (32) to cancel out the bracing effect.
  11. A safety locking arrangement according to Claim 10,
    characterised by,
    in relation to the axis (32), a two-armed construction of the locking lever (33) with two arms (34, 36) of which one (36) has the free end (36E) while the other (34) has the articulation point (35).
  12. A safety locking arrangement according to Claim 10 or 11,
    characterised by
    a spring (38) for pre-tensioning the locking lever (33) in its position which ensures bracing of the movable part (31).
  13. A safety locking arrangement according to Claims 8 and 12,
    characterised by
    direct supporting of the spring-loaded locking lever (33) via the movable part (31) and of its free end (31E) on the free end (29E) of the fixed angled part (29).
  14. A safety locking arrangement according to one of the preceding Claims,
    characterised by
    a spring (37) for pre-tensioning the movable part (31) into its inoperative position which closes the two-part locking ring (27).
  15. A safety locking arrangement according to one of Claims 10 to 14, in which the emergency actuating means (9, 10) is coupled to an emergency valve (9) to actuate a venting valve,
    characterised in that
    the locking lever (33) is coupled to the emergency valve (9) mechanically via the operative connection (10).
  16. A safety locking arrangement according to Claim 15,
    characterised by
    a clearly defined idle travel in the operative connection (10) in the arrangement so that initially in a first stage of actuation of the emergency valve (9) the venting valve is actuated and after the idle travel has been negotiated, and in a second stage, the locking lever (33) is actuated.
  17. A safety locking arrangement according to Claim 16,
    characterised by
    an overridable pressure point between the first and second stages of actuation of the emergency valve (9).
  18. A safety locking arrangement according to one of Claims 10 to 17,
    characterised by
    a further emergency valve (9') which can be operated from outside the vehicle and which is provided solely for venting the compressed air system of the door.
  19. A safety locking arrangement according to Claim 18,
    characterised by
    a transparent covering over the further emergency valve (9') and which can be removed only by being destroyed.
EP92100790A 1991-02-22 1992-01-18 Safety locking device for the door leaf of a swinging door Expired - Lifetime EP0499796B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4105544A DE4105544C1 (en) 1991-02-22 1991-02-22
DE4105544 1991-02-22

Publications (3)

Publication Number Publication Date
EP0499796A2 EP0499796A2 (en) 1992-08-26
EP0499796A3 EP0499796A3 (en) 1992-10-14
EP0499796B1 true EP0499796B1 (en) 1995-03-01

Family

ID=6425636

Family Applications (2)

Application Number Title Priority Date Filing Date
EP92100790A Expired - Lifetime EP0499796B1 (en) 1991-02-22 1992-01-18 Safety locking device for the door leaf of a swinging door
EP92102711A Expired - Lifetime EP0500062B1 (en) 1991-02-22 1992-02-19 Door locking device for passenger carrying vehicles

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP92102711A Expired - Lifetime EP0500062B1 (en) 1991-02-22 1992-02-19 Door locking device for passenger carrying vehicles

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EP (2) EP0499796B1 (en)
DE (3) DE4105544C1 (en)
HU (1) HU211091B (en)

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Also Published As

Publication number Publication date
DE4105544C1 (en) 1992-05-27
EP0499796A2 (en) 1992-08-26
DE59201482D1 (en) 1995-04-06
HU211091B (en) 1995-10-30
HU9200281D0 (en) 1992-04-28
EP0500062A3 (en) 1992-10-07
EP0500062B1 (en) 1995-01-25
HUT61067A (en) 1992-11-30
EP0500062A2 (en) 1992-08-26
EP0499796A3 (en) 1992-10-14
DE59201242D1 (en) 1995-03-09

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