EP2500499B1 - Locking system with levers - Google Patents

Description

The invention relates to a locking system for doors, in particular for doors of public transport vehicles. Furthermore, the invention relates to a vehicle having such a locking system for doors and a method for actuating the locking system.

Drive systems for sliding doors (high-speed traffic - HGV) are known which represent a pure guidance system. About the pivot arms and the associated guide rail while the pivotal movement of the door is determined. However, the door drive is not locked in its end positions, and the door lock then takes place via additional locking systems that act on the edge of the door leaf.

In particular locking systems are known which use a Übertotstellung of components to hold vehicle doors in a particular position. For example, the patent discloses DE 199 58 746 B4 a lock for the hinged door of a vehicle, with which the door is to be held in an open position. If the vehicle is on a slope or a slope with the swing door open, it is thus possible to prevent the open door wing, due to its own weight, from turning the associated swing arm about its axis of rotation and closing the door. This is achieved in that the swivel arm are connected via a connecting rod and a connecting rod bearing with an eccentric disc on a drive shaft. When the door is open, the connecting rod with the connecting rod bearing in over-dead position, and with a movement of the swivel arm in the direction that would close the door, the connecting rod bearing is pressed more in the Übertotstellung. Thus, an inadvertent closing of the door can be prevented. On the other hand, if the door is intentionally closed, a torque is applied to the drive shaft, which rotates the eccentric disc attached thereto. As a result, the connecting rod bearing is pivoted out of the Übertotstellung out.

The Utility Model DE 20 2008 012 410 U1 discloses a lock for a hinged door, which comprises a rotary latch with Übertotstellung, wherein the toggle lever of a toggle mechanism is in overtemp position when the catch is locked. Only when this Übertotstellung is solved by pivoting the toggle mechanism, the catch can be taken and released a locking pin. This is done by pulling on an eyelet near a toggle lever.

From the utility model DE 85 01 247 U1 Furthermore, a lock for vehicle swing doors is known in which two push rods are articulated on a drive lever. About the push rods associated rotary columns are actuated, the drive lever occupies a dead center position with one or two push rods with the door closed. As a result, an opening of the door is prevented, and there is provided a device for overcoming this dead center. There are thus brought push rods in dead center, which articulate the rotary columns. From the utility model DE 20 2004 002 908 U1 a locking system according to the preamble of claim 1 is known. The object of the invention is to increase the security of generic doors, wherein a simple locking mechanism is to be provided which locks a vehicle door securely in a closed position.

According to the invention, this object is achieved by a locking system according to independent claim 1. Advantageous developments of the locking system will become apparent from the dependent claims 2-4. The object is further achieved by a vehicle door with such a locking mechanism according to claim 5 and a method for actuating the locking mechanism according to claims 6-9.

The locking system according to the invention is particularly suitable for sliding doors of a vehicle, and it comprises a door leaf which is movable by a drive, a drive carrier and two pivot arms between a closed and an open position, the door leaf in a closed position laterally to a main closing edge and a Nebenschließkante rests against the vehicle. The door leaf is pivotable when opening and closing the sliding door by the drive via the pivot arms and slidable along the drive carrier, wherein the door leaf moves when opening from the main closing edge away.

According to the invention a lock with two levers is designed on the pivot arm of the secondary closing edge, which is driven by the locking over the reaction torque of the drive of the pivot arm in the closed position of the door leaf at the Nebenschließkante over-deadlock-locked by the two levers in an over-center position can be brought are. The two levers are an over-center drive lever and an over-the-counter. As a result, a lock on the secondary closing edge is achieved, which uses the reaction torque of the drive for locking in a simple manner via a correspondingly designed lever geometry. According to the invention, the drive is connected to a Übertotpunktantriebshebel rotatably mounted on a pivot point on the drive carrier and is pivotally connected to the Übertotpunkthebel. The Übertotpunkthebel turn is rotatably connected to the pivot arm of the secondary closing edge.

For Übertotverriegelung the Übertotpunktantriebshebel is designed according to the invention angled, and the resulting two lever portions of the Übertotpunktantriebshebels are executed at an angle α angled to each other. The angle α thus reflects the degree of deflection and represents the Übertotpunktwinkel. The Übertotpunktantriebshebel is executed executed exactly at its pivot point angled.

In the over-center position, the over-center lever then runs counter to the direction of the over-center drive lever angling, with an angle β between the over-center lever and the lever area of the over-center drive lever connected to the over-center lever being greater than zero. In this position, a rotation of the pivot arm at the minor closing edge can not resolve the Übertotstellung the lever.

In one embodiment of the invention, the drive is connected via a connecting lever with the Übertotpunktantriebshebel. The connecting lever is hinged to the Übertotpunktantriebshebel, wherein the direction of movement of this connecting lever preferably transversely to the drive carrier runs. The displacement of the door leaf can then take place for example via a driver, which is movable by means of a spindle along the drive carrier.

Also included in the invention is a vehicle having a vehicle door with such a locking system and a method of operating the locking system. The method thus provides that upon closing the door leaf, the levers are moved by the reaction torque of the drive motor to a position which causes an over-center locking of the secondary closure edge. According to the invention the Übertotpunkthebel is moved when closing the door panel in a position in which it runs counter to the direction of the deflection of the Übertotpunktantriebshebels, wherein the angle between the Übertotpunkthebel and the lever portion of the Übertotpunktantriebshebels, which is connected to the Übertotpunkthebel, increased to an angle β becomes. On the way to this position the Übertotpunkthebel temporarily runs exactly in the direction of the lever portion of the Übertotpunktantriebshebels, which is connected to the Übertotpunkthebel, so that the angle between the Übertotpunkthebel and this lever range corresponds to the Übertotpunktwinkel α. Then, the over-center lever pivots in a direction opposite to the deflection of the over-center drive lever, and biases the angle β between the over-center lever and the over-center drive lever.

When the door leaf is opened, the levers are then moved by the reaction torque of the drive motor into a position which dissolves the over-center interlock. For this purpose, the Übertotpunkthebel is moved to a position in which it extends in the direction of the deflection of the Übertotpunktantriebshebels. So if it has been pivoted for the closed position so that it runs counter to the bending of the Übertotpunktantriebshebels, it now pivots in the direction of the bend. In this case, the angle between the Übertothebel and the lever portion of the Übertotpunktantriebshebels, which is connected to the Übertotpunkthebel, on the way to this position from the angle β is temporarily reduced to zero. At an angle β of zero, the over-center lever is then exactly at the over-center angle α. Thereafter, the over-center lever swings in the other direction.

The articulation of the Übertotpunktantriebshebels means of the drive, for example via the already mentioned connection lever, which preferably moves transversely to the drive carrier.

Further advantages, features and expedient developments of the invention will become apparent from the dependent claims and the following description of preferred embodiments with reference to the drawings.

Fig. 1

eine Ausführungsform des Antriebs einer Fahrzeugtür mit einem Türblatt in geschlossener Stellung;

Fig. 2

den Antrieb gemäß Fig. 1 beim Ausschwenken des Türblatts;

Fig. 3

den Antrieb gemäß Fig. 1 mit dem Türblatt in geöffneter Stellung; und

Fig. 3

einen vergrößerten Ausschnitt des Antriebs gemäß Fig. 1 im Bereich der Verriegelungshebel.

From the pictures shows:

Fig. 1

an embodiment of the drive of a vehicle door with a door leaf in the closed position;

Fig. 2

the drive according to Fig. 1 when swinging the door panel;

Fig. 3

the drive according to Fig. 1 with the door leaf in the open position; and

Fig. 3

an enlarged section of the drive according to Fig. 1 in the area of the locking lever.

Fig. 1 shows an embodiment of a drive with the locking system according to the invention, in which a vehicle door has a door leaf 10 which can be moved by a drive motor 30 between a closed position and an open position. In this case, the door leaf 10 is both pivoted and moved, so that the resulting pivot sliding door is first pivoted out of the plane of the vehicle body, for example, during the opening process before it is moved along the vehicle to release a vehicle opening. The same process occurs when closing the door in reverse order.

The sides of the door leaf 10 are then in the closed position at a main closing edge (HSK) 11 and a Nebenschließkante (NSK) 12 on the vehicle, the two closing edges are defined so that the door when opening the sliding door from the main closing edge 11 away emotional. To the Pivoting the door leaf 10 is provided at the main closing edge 11 and the auxiliary closing edge 12 each have a pivot arm 20 and 21, which is connected to the vehicle. The Ausschwenkbewegung is preferably by a guide rail, which is also firmly connected to the vehicle, coordinated (not shown).

To move the door leaf 10, a horizontal drive carrier 31 is provided, along which the door leaf 10 can be moved by a variety of means. For example, the door leaf 10 can be moved by a driver 32, which is movable via a rotating spindle 33 along the drive carrier 31.

The drive of the pivot arms 20, 21 and the driver 32 takes place via the drive motor 30, which is preferably arranged in the region of the secondary closing edge 12. This drive motor 30 is simultaneously in communication with a connecting lever 40. The connecting lever 40 is pivotally connected to a Übertotpunktantriebshebel 41 which is rotatably mounted approximately at its center via a pivot point 43 on the drive carrier 31. The Übertotpunktantriebshebel 41 is executed angled at the pivot point 43, so that the two lever portions of the Übertotpunktantriebshebels 41 are at an angle α to each other.

Further, an over-center lever 42 is provided which is rotatably connected to the swing arm 21 at the minor closing edge 12 and the Übertotpunktantriebshebel 41. Here are the two levers 41, 42 at an angle α in the over center. This arrangement of the levers 41, 42 and the Übertotpunktwinkel α are also from the enlarged view of Fig. 4 can be seen, wherein the two lever portions of the angled Übertotpunktantriebshebels 41 in Fig. 4 are more specifically indicated by the reference numerals 41 'and 41 ". The first lever portion 41' is connected to the connecting lever 40 while the second lever portion 41" is connected to the over-center lever 42.

With the door closed, as in the Fig. 1 is shown, takes place so a Übertotverriegelung the drive in the closed position. This is done by the reaction torque of the drive motor 30, over the connecting lever 40 and the levers 41, 42 the pivot arm 21 in the closed position over-deadlock-locked, as soon as the door leaf 10 has reached the closed position and the drive motor 30 can no longer move the door. In this case, the connecting lever 40 moves driven by the reaction torque of the drive motor 30 in the direction of the drive carrier 31 and pivots so in the view of the figures the Übertotantriebshebel 41 clockwise about its pivot point 43. Due to the geometry of the levers and pivots of the Übertothebel 42 thereby enters a position in which it is directed against the bending of Übertotpunktantriebshebels 41, ie between the lever portion 41 "of the Übertotpunktantriebshebels 41 and the Übertotpunkthebel 42 is in this position an angle β, as he also from the Fig. 4 is apparent.

By this position, the lever 41, 42, it is not possible that the pivot arm 21 unintentionally rotates clockwise, which would cause an opening of the door 10, because without additional means the over-center position of the lever can not be overcome. There is thus an over-center locking of the secondary closing edge with two levers. By locking the secondary closing edge on the pivot arm 21 and the main closing edge on the pivot arm 20 is locked automatically, since the pivot arms are in the closed position at an angle of approximately 90 ° to each other. Furthermore, the pivot arm 20 in its position transverse to the drive carrier 31 in this locked position of the pivot arm 20 is not rotatable.

When opening the door 10, the drive motor 30 moves the connecting lever 40 away from the drive carrier 31 via its reaction torque, so that the Übertotpunktantriebshebel 41 pivots counterclockwise about the pivot point 43. As a result, the Übertotstellung is canceled and the Übertotpunkthebel 42 can now pivot relative to the Übertotpunktantriebshebel 41 in the opposite direction, as soon as the angle β has been reduced to zero. As a result, now also the pivot arm 21 can rotate clockwise and start to swing the door 10, as in Fig. 2 is shown. The locking levers 41, 42 support the pivot arm 21 of the secondary closing edge 12 during pivoting. At the same time pivots the swing arm 20 at the main closing edge 11, the door also.

After swinging the door 10, the driver 32 moves by means of the rotating spindle 33 along the drive carrier 31 and thus moves the door leaf 10 in the direction of the secondary closing edge 12, as is the Fig. 3 shows. In this case, the connecting lever 40 has moved further in the direction of the drive motor 30 and the Übertotpunktantriebshebel 41 also rotated further counterclockwise. The same applies to the over-center lever 42, which is opposite to the situation in Fig. 2 has further rotated clockwise together with the pivot arm 21.

During the closing operation, the movements are again in the reverse order, with the connecting lever 40 again moves in the direction of the drive carrier 31 and the lever 41, 42 and thus the secondary closing edge 12 are again over-deadlock-locked.

LIST OF REFERENCE NUMBERS

10

Door, door leaf

11

Main closing edge, HSK

12

Secondary closing edge, NSK

20, 21

swivel arm

30

Drive, drive motor

31

drive carrier

32

takeaway

33

spindle

40

connecting lever

41

Overtotpoint drive lever, locking lever

41 ', 41 "

Lever area of the over-center drive lever

42

Over-center lever, locking lever

43

pivot point

Claims (9)

1. A locking system for the pivot-and-slide door of a vehicle comprising a door leaf (10) movable by a drive (30), a drive carrier (31) and two pivot arms (20; 21) between a closed and an open position, wherein in a closed position, the door leaf (10) is in lateral contact with the vehicle on a main closing edge (11) and a secondary closing edge (12) and during opening and closing of the pivot-and-slide door by the drive (30), the door leaf (10) is pivotable via the pivot arms (20; 21) and movable along the drive carrier (31), and during opening, the door leaf (10) moves away from the main closing edge (11), wherein on the pivot arm (21) of the secondary closing edge (12), a locking mechanism with two levers (41; 42) is realised such that due to the locking mechanism driven via the reaction moment of the drive (30), the pivot arm (21), in the closed position of the door leaf (10), can be locked over-dead-centre on the secondary closing edge (12), in that the two levers (41; 42) can be brought into an over-dead-centre position,
   characterised in that the two levers are an over-dead-centre drive lever (41) and an over-dead-centre lever (42), wherein

   - the drive (30) is connected to the over-dead-centre drive lever (41), which is rotatably mounted via a fulcrum (43) on the drive carrier (31) and is hingedly connected to the over-dead-centre lever (42),

   - the over-dead-centre lever (42) is rotatably connected to the pivot arm (21) of the secondary closing edge (12),

   - the over-dead-centre drive lever (41) is realised at an angle in the fulcrum (43) and the resulting two lever areas (41';41") of the over-dead-centre drive lever (41) are realised at an angle α to each other, and

   - the over-dead-centre lever (42), in the over-dead-centre position, extends contrary to the direction of the angle of the over-dead-centre drive lever (41), wherein an angle ß between the over-dead-centre lever (42) and the lever area (41") of the over-dead-centre drive lever (41), which is connected to the over-dead-centre lever (42), is larger than zero.
2. The locking s<stem according to claim 1, characterised in that the drive (30) is connected to the over-dead-centre driver lever (41) via a connecting lever (40).
3. The locking s<stem according to claim 2, characterised in that the direction of movement of the connecting lever (40) extends transversely to the drive carrier (31).
4. The locking s<stem according to one of claims 1 to 3, characterised in that the displacement of the door leaf (10) takes place via a driving pin (32), which can be moved my means of a spindle (33) along the drive carrier (31).
5. A vehicle with at least one pivot-and-slide door, characterised in that the pivot-and-slide door comprises a locking system according to one or more claims 1 to 4.
6. A method for actuating a locking system according to one or more of claims 1 to 4, characterised in that in closing the door leaf (10) the levers (41; 42) are moved by the reaction moment of the drive motor (30) into a position, which initiates an over-dead-centre locking of the secondary closing edge (12), wherein the over-dead-centre lever (42), during closing of the door leaf (10), is moved into a position, in which is extends contrary to the direction of the angle of the over-dead-centre drive lever (41), and the angle between the over-dead-centre lever (42) and the lever area (41") of the over-dead-centre drive lever (41), which is connected to the over-dead-centre lever (42), is enlarged up to an angle ß.
7. The method according to claim 6, characterised in that in opening the door leaf (10) the levers (41; 42) are moved by the reaction moment of the drive motor (30) into a position, which releases the over-dead-centre locking.
8. The method according to claim 7, characterised in that the over-dead-centre lever (42), in opening the door leaf (10), is moved into a position, in which it extends in direction of the angle of the over-dead-centre drive lever (41), wherein the angle between the over-dead-centre lever (42) and the lever area (41") of the over-dead-centre drive lever (41), which is connected to the over-dead-centre lever (42), is, as it approaches this position starting from the angle ß, temporarily reduced to zero.
9. The method according to one or more of claims 6 to 8, characterised in that actuation of the over-dead-centre drive lever (41) is effected by means of the drive (30) via a connecting lever (40), which moves transversely to the drive carrier (31).

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