EP1213426B1 - Multiple bolt lock - Google Patents

Description

The invention relates to a multi-bolt lock with at least a push rod for bolt operation, the Push rod both by a third-party drive, such as in particular by an electric motor as well - especially in the event of failure the external drive - by key actuation of a locking cylinder via a gearbox and a detachable positive connection with the push rod or a push rod connection slider is displaceable, the positive connection one against the push rod or the push rod connection slide biased into an engagement position, in particular has hook-shaped driving lever on a Rack or the like. The gearbox rotatably mounted and off an engagement position is pivotable.

Multi-latch locks are known (see e.g. document DE-A-4 110 556) which are replaced by a Lock cylinders are operated. When turning a key In the lock cylinder, a slide is followed by a gear moved up or down by means of a hook on a connection slider the push rods can be coupled. In the coupled Condition the push rods with the help of Key operated. An alternative is for the panic case Actuation only possible using an inside handle. The Lever nut disengages the hook and thus uncouples the transmission as well as the locking cylinder. With a lever system then push the push rods alone with the help of the pusher the open position will be postponed.

Multi-latch locks are independent of this type of panic construction known, powered by an electric motor become. The electric motor is operated by a key switch or controlled by radio. On the inside of the door, too a button or a toggle switch with an opening and a locking position may be provided.

The invention aims to actuate the multi-bolt lock alternative to external drive (e.g. in the event of a power failure) also by means of a key. This is achieved by pushing against the driving lever sliding releaser is provided, which in its advanced, Sliding position swings out the driving lever and that on the transmission side, in particular on the rack, a control surface is provided in the locking process by key operation runs against the releaser and this from the driving lever pulls back, the driving lever to the Push rod can be coupled. So if, e.g. in the event of a power failure, Motor defect or a fault in the electronics from External drive to be switched to key operation then the key is turned in the lock cylinder, the Rotation via the gearbox converted into a pushing motion becomes. The control surface of the rack runs against the releaser and pushes it off the disengaged drive lever path. The driving lever can pivot into its locked position and finds its form-fitting element with its front hook (e.g. a contact edge) so that the locking cylinder and Gearbox via the drive lever with or Push rods are coupled. This is the multi-latch lock actuation switched from external drive to key drive. The release mechanism can be used as a manually operated release slide be trained in his advanced Sliding position is lockable and in this locked position swings out the driving lever.

To switch from manual operation, i.e. key drive to third-party drive (e.g. electric drive, compressed air drive or the like), it is useful if in the direction of displacement Release slide in a faceplate of the lock housing with the release slide aligned bore is provided by which of the release slides, e.g. by means of a pen, in its advanced, lockable sliding position can be advanced is. The release slide has two e.g. by means of ball catches defined locations. When he pushed back and with it the driving lever is engaged or can be engaged this position of the release slide through the hole in the faceplate detect. For example, a colored area of the release slide be visible in the hole. If you are with one Pin or the like. Through the bore through the release slide pushes away, then it snaps out of the first click and in the advanced position. At the same time the release slide from its dome position against spring force swung. This is the gear with the lock cylinder uncoupled from the push rods. Gearbox and in particular Cylinders would be self-locking and would be operated externally do not allow the push rods. Since she is now are uncoupled, the external drive can be activated and the actuation of the multi-bolt lock via this third-party drive respectively. The mechanical drive thus couples with cylinder actuation not only to the Push rod, but the other way round is activated by the subsequent external drive (e.g. after a power failure) the self-locking Drive uncoupled.

Instead of a manual switch with the release slide the switching process can also be fully automatic be performed. This is achieved in that the Releaser than within a given displacement spring-loaded slide, spring bolt or designed as a leaf spring and when running onto the control surface of the rack can be pushed back against spring force or when the control surface under spring force on the driving lever whose pivoting attack from the positive connection. It is particularly expedient if the control surface has a sloping inlet area for pushing back the slide as well an adjoining one perpendicular to the direction of displacement of the slide oriented holding area and if the driving lever with a contact surface for the slide is formed, the continuation of the holding area the control surface. Is locked with the key, then the sprung sliding off the control surface presses Slide the drive lever out of the engaged position and couple the transmission and thus the self-locking of the Push rods off. The multi-bolt lock can now be operated by an electric motor locked and opened. Is "manual operation" again required, then the key unlocks, whereby the control surface moves the sprung slide from Pulling lever pulls back and the driving lever by its Torsion spring against the push rod in the locked position swings. The driving lever thus represents the kinematic Connection between key, gear and push rod for the manual operation.

Finally, it is also possible to switch automatically always to be effected during engine operation. This will be achieved that on the push rod or the push rod connection slider or on a kinematically connected with them Part of a backdrop is provided, the displacement path compared to the key-operated self-locking Gear is free over a predetermined length and that the setting through the release slide during the locking process the external drive (electric motor 15) within the exemption in the decoupling sliding position, the self-locking Gearbox uncoupled with the lock cylinder and the Push rods are displaceable by the external drive. An on manually operable but also not directly from The hand that can be influenced is then released by the exempt (empty) first displacement path of the push rod pressed against the drive lever and this disengaged. Thereby is the (self-locking) gear in the other Push rod displacement uncoupled and this electromotive Push rod displacement or lock actuation thus enables.

An embodiment of the subject of the invention is in shown the drawings. Fig. 1 shows a schematic View of a multi-bolt lock according to the invention a manually operated release slide and with an electric motor as an external drive, Fig. 2 only the housing of the multi-bolt lock 1 with the mechanism when actuating the cylinder, being a driving lever from a push rod connecting slide is still disengaged, Fig. 3 shows the execution 2 with a fixed cylinder actuation, in which the Release slide is pushed back, Fig. 4 the execution 3 with fully disengaged release slide, 5 shows the embodiment according to FIG. 4 with opposite cylinder actuation, 6 shows the embodiment according to FIG. 5 with in the driving lever coupled to the connecting rod connecting slide, 7 starting from a representation according to FIG. 6 Push the release slide with the help of a pen or the like, FIG. 8 as an alternative to FIGS. 1 to 7 blocked multi-bolt lock with an automatic, spring-loaded Slider in the function of a release, with disengaged Carrying lever ready for motor operation and Fig. 9 the multi-latch lock of Fig. 8 after locking using a key in the locking cylinder.

According to FIG. 1, a multi-bolt lock comprises in a housing 1 a lock cylinder 2 of a multi-stage Gear 3 drives a toothing. Latter has two axially projecting from a flat side of a gear 4 Pins 5, 6 with a triangular cross section, which engage the teeth of a rack 7. The Rack 7 carries a control surface 8. In the path of movement the rack 7 is a release in the form of a Release slide 9, the cross in a housing-fixed guide is displaceable to the direction of displacement of the rack. The Release slide 9 has two defined by a ball catch Position on. On the head side of the release slide 9 is one-sided Driving lever rotatably mounted on the rack 7 10 on. The driving lever 10 is countered by a spring 10 ' the head end of the release slide 9 biased.

The hook-shaped end of the driving lever 10 is located Push rod connecting slide 11 and in particular a recess 12 in the same opposite. 1 is the driving lever 10 uncoupled from the connecting rod connecting slide 11.

With the two ends of the connecting rod connecting slide 11 are each push rods 13, 14 positively connected.

1 is distanced from the housing 1 an electric motor 15 is provided. This is through one Key holder 16 and a toggle switch 17 (on the inside of the door) controlled in the locking and unlocking directions. A clutch 18 is always engaged when a drive done by the electric motor 15. The torque of the electric motor 15 is via a gear transmission, not shown transferred to a pinion 19 with a toothing 20 on the push rod 14 combs.

Since the driving lever 10 from the push rod connecting slide 11 is pivoted away, this and thus the Move push rods 13, 14 freely. The electric motor 15 is actuated the push rods 13, 14, which are connected to one another via the push rod connecting slide 11 are connected. Through a Oblique slot pin gear 21 is a bolt 22 on and pushed out. So it is the multi-bolt lock with the help a key in the key switch 16 from the outside or through a toggle switch actuation (toggle switch 17) from the inside, that is can be activated on the room side. A trap 23 is over a nut lever 24 and a pusher (not shown) withdrawn.

Would be the lock cylinder 2 and the gear 3, in particular the rack teeth of the rack 7 by means of the driving lever 10 on the connecting rod connecting slide 11 or the Push rods 13, 14 kinematically connected, then one Displacement of the push rods 13, 14 by the electric motor 15 do not take place, since both the gear teeth as well the lock cylinder 2 when the key is not inserted are self-locking. Only when the driving lever 10 is pivoted away the normal operation of the multi-bolt lock can be more convenient Way through the key or switch-controlled electric motor 15 (as an external drive).

Fig. 2 to 6 show the case that a manual over the lock cylinder 2, e.g. in the event of a power failure, required is. 2 is a key in the lock cylinder 2 in Direction of arrow rotated. So that the gear 4 rotates Stick teeth in the direction of the arrow and the rack 7 will pushed up. The control surface 8 of the rack 7 sets 3 against a counter surface of the release slide 9 and pushes the release slide 9 away from the driving lever 10 to the left. Thus, the release slide 9 is out of function set. The driving lever 10 is under the action of the spring 10 'pivoted to the left in the direction of the arrow. He is lying now with its hook-shaped end on the push rod connecting slide 11 on. Fig. 4 shows this situation. The release slide 9 is pushed aside entirely and in its inoperative Position locked in a ball catch.

With a subsequent turn of the key in the direction of the arrow 5, the rack 7 moves down to Fig. 6 of the driving lever 10 in the recess 12 of the Push rod connecting slide engages. So that's the Key drive from lock cylinder 2 via gear 3 with the serration and the rack 7 with the push rod connecting slide 11 and the push rod 13, 14 coupled. By turning the key clockwise (dashed arrow) the rack 7 moves upwards. The Driving lever 10 takes the push rod connecting slide 11 and the push rods 13, 14 with up. Like the dashed line The arrow on the bolt 22 shows that the bolt 22 is moving from its locked position back to the open position. The reverse Locking process is indicated by arrows with full lines.

The multi-bolt lock was therefore automatic as a result of Key operation switched to key operation (manual operation). Should go back to the practical third-party drive the electric motor 15 (Fig. 1) are switched back then only the release slide 9 must be in its functional position be deferred. For this purpose, the release slide 9 with With the help of a pen or the like (see arrow 25) the bore 26 in the faceplate moved until it in the in Fig. 7 shown position locked with the ball catch. In this position, the release slide 9 presses the driving lever 10 back, whereby this driving lever 10 from the push rod connecting slide 11 pivots away from the recess 12 disengages with its hook-shaped end and thus the entire uncoupled mechanical drive construction. Well now 1 the external drive by the electric motor 15 again to be activated.

Disengaging, i.e. moving the release slide 9 against the driving lever 10 can also by the electric motor 15 push rod 14 moved upwards if this an exemption from the push rod connecting slide 11 has. The latter is with the drive lever engaged 10 blocked against shifting because of the serration and the lock cylinder 2 cause self-locking. But if between the push rod 14 and the initially immovable Push rod connecting slide 11 an exemption is provided, the push rod 14 within the Exemption, e.g. 10 mm, can be pushed upwards. If now the push rod or a component connected to it has an inclined surface at the cuff end of Release slide 9 attacks, this can be pushed to the right become. A corresponding construction is shown in FIG. 7 dashed indicated by the principle.

It should also be mentioned that both the release slide 9 and also the detachable positive connection between rack 7 and push rod connecting slide 11 can be designed differently can. To disengage the positive connection, e.g. also a pivot lever can be used by the Rack 9 is moved. It is essential that with key actuation automatic engagement of the lock mechanism takes place and that the disengagement to switch back to Electric drive either by manual changeover or automatically when a push rod is actuated for the first time is carried out.

The lock cylinder 2 can also act as a key switch cylinder be designed for the electric motor. The latter can with key operation of the multi-bolt lock be uncoupled or rotated if necessary. The Push rods 13, 14 can be equipped with a back pressure protection be to move it to the release position to prevent with a burglary tool.

A multi-bolt lock according to FIGS. 8 and 9 includes such Fig. 1 to 7, a housing 1 with lock cylinder 2, the a multi-stage gear 3 with a toothing Gear 4, pins 5, 6 and rack 8 has. With the Rack 8 is a disengageable, hook-shaped driving lever 10 rotatably connected, the positive in accordance with FIG a push rod connecting slide 11, in particular in a Recess 12 engages the same. The driving lever 10 is by a spring 10 'in the direction of its engagement or coupling position biased.

As a release for the driving lever 10 is in a housing-fixed Guided suspension, slidable Slider 9 'provided. This presses sideways in Fig. 8 the driving lever 10, pushes it out of its clutch position and keeps him out. As long as the driving lever 10 is disengaged is the push rod 13 through the electronic or switch-controlled electric motor 15 (Fig. 1 below) in the locked position and moved back to the release position become.

On the rack 7 is a control surface 8 with an inclined slope provided for the spring-loaded slide 9 '. If the Rack 7 from the position shown in FIG. 8 up into the 9 position is moved (when locking over the Lock cylinder 2 and the gear 3), then presses on the sprung slide 9 'accruing control surface 8 den Slider 9 'against its advancing spring force in its housing back. This releases the release force on the drive lever 10 and this pivots into its dome position on. In any case, it snaps into the recess 12, if using the key in the locking cylinder 2 Rack 7 (and thus the driving lever 10) up or is moved down.

The function results according to FIGS. 8 and 9 as follows: The Multi-latch lock is locked according to FIG. 8. The driving lever 10 is disengaged. So that the push rod 13 through the electric motor 15 shifted by switch or radio control, So in the open position as well as in the locked position to be brought. The toothing with the pins 5, 6 in the rack 7 is self-locking and would be one electromotive actuation on the side of the push rod 13 block, the driving lever 10 would not be, as in FIG. 8 shown, due to the abutment of the spring-loaded slide 9 ' disengaged.

In the event of a power failure or another defect in the external drive (15) the manual control (cylinder 2, gear 3, Stick teeth with rack 7 and driving lever 10) to the Push rod 13 or the connecting rod connecting slide 11 coupled become. Starting from FIG. 8, this is done by that the lock cylinder 2 is actuated with the key becomes. The rack 7 moves in the sense of unlocking upwards, the control surface 8 detects the spring-loaded slide 9 'and presses it with continued key rotation back. As a result, the slide 9 'lifts off the driving lever 10, so that due to its spring 10 'against the push rod connecting slide 11 pivots and into the recess 12 locks. This turns every further key turn into one Push rod displacement implemented (Fig. 9).

As long as the driving lever 10 is engaged, the External drives are not used. In the cycle of opening and closing Locking with the key, the driving lever 10 couples however, each time in the locked position (Fig. 8), so that An electromechanical one starting from each locked position Actuation by the external drive is possible. The driving lever 10 remains disengaged for as long as a third-party drive until it is engaged again by actuating the key.

Claims (6)

1. Multiple-bolt lock with at least one pushrod (13, 14) for bolt operation, wherein the pushrod is displaceable either by an external drive, such as in particular by an electric motor (15), or ― in particular in case of failure of the external drive ― by key operation of a lock cylinder (2) via a gear (3) and a releasable positive connection to the pushrod (13, 14) or to a pushrod-yoking slider, and wherein the positive connection comprises a catch lever (10), in particular hook-shaped, that is urged into an engagement position towards the pushrod or pushrod-yoking slider and mounted pivotably on a rack (7) or the like of the gear (3) and pivotable out of an engagement position, characterized in that a disengaging device (9, 9') pushable against the catch lever (10) is provided which in its outthrust position pivots the catch lever (10) out of engagement, and in that a cam face (8) is provided on the gear side, in particular on the rack (7), which impinges on the disengaging device (9, 9') during locking by key operation and draws it back from the catch lever (10), thus allowing the catch lever to be coupled to the pushrod (13, 14).
2. Multiple-bolt lock according to Claim 1, characterized in that the disengaging device is configured as a manually operable throwout slider (9) that is latchable in its outthrust position and when in this latched position pivots the catch lever (10) out of engagement.
3. Multiple-bolt lock according to Claim 2, characterized in that a hole (26) in register with the throwout slider (9) is provided in the displacement direction of the throwout slider (9) in a cuff of the lock casing, through which hole the throwout slider (9) is pushable e. g. by means of a pin (25) into its outthrust, latchable position.
4. Multiple-bolt lock according to Claim 1, characterized in that the disengaging device is configured as a slider (9') spring-loaded within a predetermined travel, spring pin or as a leaf spring and is retractable against spring force when impinging on the cam face (8) of the rack (7) or engages the catch lever (10) under spring force when the cam face (8) moves away, thus pivoting the catch lever out of its positive connection.
5. Multiple-bolt lock according to Claim 2 or Claim 4, characterized in that the cam face (8) has an oblique impingement region for retracting the slider (9') and an adjoining holding region orientated perpendicularly to the displacement direction of the slider and in that the catch lever (10) is configured with a run-on face for the slider (9') which lies in the continuation of the holding region of the cam face (8).
6. Multiple-bolt lock according to Claims 1 to 3, characterized in that a link slot is provided on the pushrod (13, 14) or pushrod-yoking slider (11) or on a component kinematically connected to the latter, whose travel in relation to the key-operated self-locking gear (3) is free-running over a predetermined length and in that the link slot pushes the throwout slider (9) into the uncoupled position within the free run during locking by the external drive (electric motor 15), uncoupling the self-locking gear (3) from the lock cylinder (2) and allowing the pushrods (13, 14) to be displaced by the external drive.

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