EP1057957B1 - Door lock - Google Patents

Abstract

The main lock (10) has a latch and a main bolt (56). The latch is displaced by a key and or sneck from a protruding latch position into a retracted open position. The main bolt is displaced by a key via a gear (20) and bottom driving rod (52) from an open position inside the lock housing into a bolted position. The extra bolt lock is connected to the main lock by means of a tie rod with a top driving rod (78) in the main lock. The extra bolt of the extra bolt lock is displaced via the tie rod from a non-operating position into a locking position and vice versa. The extra bolt is a drop latch whose non-operating position is a latch position.

Description

The invention relates to a door lock with a main lock and at least one additional bolt lock, the Main lock has a latch and a main bolt, and the trap by means of a key and / or a pusher from a projecting trap position to a retracted Open position is shiftable, and the main bolt by means of of a key from an open position within the Lock housing in a pre-locked bolt position is relocatable, and the additional bolt lock via a pull rod with a connecting rod in the main lock with this is coupled, the additional bolt of the Additional deadbolt lock from a rest position to one Bolt position and from the bolt position to the rest position is relocatable, the additional bolt is a latch bolt and that its rest position is a trap position.

A locking device is known from EP 0 798 436 A2, the one main lock box and at least one Has additional lock box, the main lock box with a latch and a bolt is provided and the additional lock box has a latch bolt. The additional lock box is via a pull rod with the main lock case connected so that either by pressing the pusher or using a key to move the pull rod and this allows the latchbolt to be withdrawn. The The latch bolt is fed automatically by means of a preloaded spring. In addition, this latchbolt can shifted from its normal latch position to a latch position in which he is still from the additional lock box protrudes. This shift to the latch position takes place automatically by means of a preloaded spring after closing the door. Because with the door closed from the outside it is not apparent whether the latch bolt is in its bolt position or takes its trap position, there is Danger of the door being closed but not locking is. Blocking the latch bolt can be done easily Way by inserting an object into the in the striking plate bolt opening or by gluing the Bolt opening by means of an adhesive strip.

In addition, EP 0 915 221 A is a locking device become known, which also has a main lock box and has an additional lock box. The additional lock box is designed as a regular bolt box that one has lockable additional latch. The extension of the Additional bolt is made by a spring, the insertion of the Latches in the open position via one of the main lock case driven pull rod takes place. The additional bar comes with a restraint is held in the open position. To the The restraint is locked with a pull rod solved so that after releasing the restraint the force of a preloaded spring of the additional bolts can be pushed out.

There is also an additional lock box from this publication known, which has a latch bolt, which also is pushed out automatically after the door is closed. However, there is also no control here as to whether the latch bolt was actually pushed out or not because the push out done under spring force. Will the trap of the latchbolt blocked, it remains in the door even when the door is closed Additional bolt box.

From DE-C-35 05 379 is a main lock with a Additional lock known, the bolt of the main lock is pre-locked via a gear. The gearbox serves also for moving the drive rod in the lock housing. The latch bolt of the Pull the additional lock back into the housing. For an operator there is no guarantee that when the The latch is also locked.

The invention is therefore based on the object of a door lock which ensures that at closed and locked door the additional bolt of the Additional bolt lock also occupies its bolt position. In addition, the door should be closed but not locked a certain security against burglary is already guaranteed his.

This object is achieved with a door lock solved, which has the features of claim 1.

By dividing the drive rod into a lower and a upper drive rod, the over the lower drive rod Main bolt driven and over the upper drive rod of the Latch bolt retracted into the housing of the additional lock are ensured for an operator that at Lock the main bolt and the latch bolt is anticipated.

By designing the additional bolt as a latch bolt As already known, when the door is closed, the however, is still not locked, some security created because the latch bolt takes its latch position and thus the door not only via the main lock but also is secured via the additional bolt lock (s). Because the additional bolt is a latch bolt, this is pushed in by the striking plate when the door is closed and takes his with the door closed under spring force Rest position, namely the trap position, and secures thereby the door additionally. When locking the door, which e.g. done with a key, on the one hand Main bolt of the main lock excluded and it will additionally the latch bolt of the additional lock ejected. The transfer of the exclusion movement from The main lock for the additional deadbolt lock is made via the Pull bar.

According to a preferred embodiment, the lower one Drive rod directly coupled to the upper drive rod. This ensures that the movement of the lower Connecting rod without the interposition of further links on the upper or outer drive rod and from this to the Drawbar is transferred to the additional bolt lock. If the extension of the latch bolt is blocked, so this is due to the blocking of the tie rod and thus on Blocked key movement noticed.

According to the invention for the coupling of the drive rods one drive rod has a recess and the other drive rod a projection engaging in the recess. there the recess can be a breakthrough, in particular a Slit, be. The protrusion is preferably a Bolts, a weld-on part or a bevel. A such coupling is relatively simple, and with relatively large forces can be transferred to it.

In a preferred embodiment, the Head start in the direction of displacement of the two Play in the recess. This means one drive rod from the other Driving rod is taken along, however, the taking under game. This game is sized so that when the main bolt is closed once, the upper one or outer drive rod is taken directly, and that when the main bar is closed again, the upper or outer drive rod is no longer taken. This means that the additional latchbolt is only for for the first time continue closing the main bolt is pushed out. In addition, the additional latch bolt when pressing the follower nut or when pressing the Change immediately moved in because of this actuation of the Changing the outer drive rod is activated without the lower drive rod is shifted.

As mentioned above, the main bar is According to the invention extendable on two levels or in two Tours extendable, with every step 10 mm extension causes. The additional extension of the additional latch bolt is also 10 mm.

A further training provides that the main castle is a Handle nut shows that the handle nut with a rotatably mounted change is coupled and that the Change has a radial projection that at Shift of the follower on a stop of the upper one Drive rod attacks and this drive rod immediately or with Delay shifted. So if the trigger nut is e.g. by Pressing a pusher, then using the the trigger nut coupled change the upper connecting rod shifted upwards, causing over those with the top Connecting rod coupled pull rod an indentation of the Additional latch bolt causes.

It is also provided that a handlebar at the change is pivotally attached, via the gearbox or the Lock cylinder is displaceable, so that the Change is pivoted. About this handlebar Change from the key or from the gearbox, especially from a planetary gear, from the rest position into one Labor situation shifted. However, the change pivoted and thus moved the tie rod. In this way the additional bolt lock can also be used with a key be opened.

To prevent incorrect operation when locking the Preventing the main lock has the outer drive rod a spigot that is in the open position of the main bolt engages in a guide groove provided in this. On in this way the upper or outer drive rod is in Open position of the main latch in both one as well as shiftable in the other direction, whereas the outer connecting rod when extended Main bolt can only be shifted in such a way that the Pin removed from the main bar. This direction of displacement corresponds to the outer drive rod or causes the Extending the additional latch bolt in the additional bolt lock.

According to a preferred embodiment, the Guide groove open to the edge and opens into the side that in Direction of the closing movement of the outer drive rod shows. The pin is in this guide groove with play.

Fig. 1:

eine schematische Wiedergabe eines Hauptschlosses mit daran angekoppelten zwei Zusatzriegelschlössern;

Fig. 2:

eine Draufsicht auf eine erste Ausführungsform eines geöffnenten Hauptschlosses;

Fig. 3:

das Hauptschloss gemäß Fig. 2, jedoch ohne äußere Treibstange;

Fig. 4:

das Hauptschloss gemäß Fig. 2 mit eingezogener Falle;

Fig. 5:

ein Hauptschloss gemäß Fig. 2 mit vollständig ausgeschobenem Hauptriegel;

Fig. 6:

ein Hauptschloss gemäß Fig. 2 mit einer äußeren Treibstange, die für einen Elektroöffner modifiziert ist;

Fig. 7:

eine Draufsicht auf die untere Treibstange;

Fig. 8:

eine Draufsicht auf die äußere Treibstange;

Fig. 9:

eine Ansicht in Richtung des Pfeils IX gemäß Fig. 8 auf die äußere Treibstange;

Fig. 10:

eine Draufsicht auf eine zweite Ausführungsform eines Hauptschlosses.

Further advantages, features and details of the invention result from the following description, in which two particularly preferred exemplary embodiments are shown in detail with reference to the drawing. The features shown in the drawing and mentioned in the claims and in the description can each be essential to the invention individually or in any combination. The drawing shows:

Fig. 1:

is a schematic representation of a main lock with two additional deadbolt locks coupled thereto;

Fig. 2:

a plan view of a first embodiment of an open main lock;

Fig. 3:

the main lock of Figure 2, but without an outer drive rod.

Fig. 4:

the main lock of Figure 2 with the case retracted.

Fig. 5:

a main lock according to Figure 2 with the main bolt fully extended;

Fig. 6:

a main lock of Figure 2 with an outer drive rod, which is modified for an electric opener.

Fig. 7:

a plan view of the lower drive rod;

Fig. 8:

a plan view of the outer drive rod;

Fig. 9:

a view in the direction of arrow IX of Figure 8 on the outer drive rod.

Fig. 10:

a plan view of a second embodiment of a main lock.

1 shows a schematic representation of an overall with 10 marked main lock and two Additional bolt locks 12, one of which is above and one is provided below the main lock 10. The Main lock 10 and additional bolt locks 12 are on a lock cuff 14 attached and one above the other Drawbars 16 coupled. The main lock 10 has one Opening 18 for a lock cylinder (not shown) on, with the lock cylinder a gear 20, in particular a planetary gear 22 (FIG. 2), can be driven is. Arrow 24 shows the rotary movement schematically of a key (not shown). Moreover 1, a pusher 26 is shown in the direction of arrow 28 can be operated. Doing so Handle nut 30 (Fig. 2) rotated as below described in more detail, causes the entry of a trap 32. In Fig. 1 can still be seen that the additional bolt locks 12 are provided with additional bolts 34 which act as latch bolts 36 are formed.

2 is a first embodiment of the Main lock 10 shown, the cover plate is decreased. The locking cylinder 38 can be seen, which is inserted into the opening 18 (Fig. 1) and that Planetary gear 22 drives. This planetary gear is clearly shown and described in EP 0 575 701 A1, see above that reference can be made to this publication. The Planetary gear 22 has one of the lock cylinder 38 driven ring gear 40 on the with two planet gears 42 (one of which is shown) combs. This Planet gears 42 in turn mesh with another one Gear 44, which is hollow and on the Inside has an internal toothing. To the closer For configuration, see EP 0 576 787 A1. This Internal gearing in turn meshes with three planet gears (not shown) which drive a sun gear 46. This sun gear 46 is parallel to the gear 22 arranged disc attached to which a bolt 48th is provided. This bolt 48 engages in an elongated hole 50, which on a lower drive rod 52 (see also FIG. 7) is provided. If the lock cylinder 38 is rotated, then becomes the sun gear 46 via the planetary gear 22 driven and the bolt 48 with the sun gear around it Axis swiveled. The bolt 48 moves along the Slot 50 and simultaneously moves the lower drive rod 52 down.

The lower drive rod 52 in turn has a pin 54 on one in the back of a main latch 56 provided guide slot 58 engages. Through the Downward displacement of the lower drive rod 52 causes the bolt 54, which is guided in the guide slot 58 an extension of the latch 56 from the housing of the Main lock 10. With one complete turn of the Lock cylinder 38, the main bolt 56 by 10 mm ejected. A full extension by 20 mm by turning the locking cylinder 38 twice causes.

If the locking cylinder 38 is in the opposite direction, i.e. clockwise, rotated, then the Cylinder extension at the free end 60 of one around a pin 62 pivotably mounted handlebar 64 and moves it up. This is a change 66, which with the Nut 30 is coupled to the axis of the nut 30 pivoted in the clockwise direction. This Change 66 causes on the one hand a radially protruding Approach 68, the stop 70 on the latch foot 72nd is present, an indentation of the trap 32. In addition, the Change 66 a radial projection 74, which after a Idle at a stop 76 of an upper or outer Drive rod 78 is present. This upper or outer drive rod 78 is also shown in FIGS. 8 and 9. The Stop 76 is formed by an angle plate 80, which is either welded to the outer drive rod 78 or is designed as a bevel. The idle between the projection 74 and the stop 76 correspond to the distance of these two elements in their rest position. Once the Projection 74 abuts the stop 76 and takes it along, the outer drive rod 78 is moved upward. The upper or lower end of the drive rod 78 is with the Drawbar 16 coupled so that the movement in the Additional bolt locks 12 is transmitted. This movement causes the latchbolts 36 to retract from the in 1 trap position shown in the retracted Open position.

However, this is also caused by the fact that the pusher 26 in the direction of arrow 28 in the designated 26 ' Position is pivoted. The trigger nut 30 takes the change 66 indirectly with and pivots this in Clockwise direction.

It should also be noted that the angle plate 80 also has a protrusion 82 which fits into a slot 84 in the lower drive rod 52 engages. In the rest position both the lower drive rod 52 and the outer one Drive rod 78 is the lower edge of the projection 82 in essentially at the lower edge of the slot 84, so that the projection 82 after a game (designated 86) has inside the slot 84 (Fig. 2).

The outer drive rod 78 is also provided with a pin 88 provided which protrudes in the direction of the main bolt 56 and into a control groove 90 provided in the main bolt 56 intervenes. The tax groove is designed in such a way that it has a control edge 92 which when the Main bolt 56 from the housing of the main lock 10 a Downward movement of the pin 88 and thus the outer Drive rod 78 causes. The control groove 90 is open at the edge, so that the bolt 88 completely out of the range of Main bolt 56 is extended. With partial extension of the main bolt 56, the pin 88 is located on the lower edge of the main bolt 56, causing a displacement of the outer Driving rod 78 is prevented upwards. In this way Unauthorized pushing in of the latch bolt 36, the by the displacement of the outer drive rod 78 and thus the tie rods 16 have also been actively pushed out, be prevented.

The control groove 90 points above the bolt 88 in FIG. 2 a freewheel 94 so that when pulling back the Latchbolts 36, which is caused by a displacement of the outer Drive rod 78 is effected upwards (as above described), no collision between the pin 88 and the main latch 56 takes place. Game 86 also serves this purpose in slot 84 of lower drive rod 52.

3 for better clarity Main lock 10 shown without the outer drive rod.

Fig. 4 shows the main lock 10 with retracted Trap 32, this by actuating the Lock cylinder 38 causes in the clockwise direction becomes. It is clearly recognizable that the lower one Drive rod 52 has maintained its position, whereas the upper or outer drive rod 78 is displaced upwards, and thus the bolt 88 enters the freewheel 94 and the Projection 82 uses game 86 in slot 84. Here lies the radial projection 74 on the stop 76.

5 shows the main lock 10 with complete extended main latch 56, both the lower Drive rod 52 as well as the outer drive rod 78 after are shifted below. The advantage is also here 82 in the upper area of the slot 84 and uses the game 86 out. This means that if the Bolt 56 the latch bolt 36 of the additional bolt locks 12 immediately be pushed out by 10 mm. The further extension of the main bolt 56 therefore does not cause any further Extending the latch bolt 36.

5 that the bolt 48 is offset by 180 ° about the axis of the sun gear 46.

6 is a variant of the outer drive rod 78 shown, as also from FIGS. 8 and 9 can be seen has an extension 96. Is that the Drawbar 16, e.g. known from DE 298 03 161 U1, provided with an electric opener, then the pull rod 16 without actuation of the lock cylinder 38 or the Handle nut 30 shifted and thereby the outer Drive rod 78 are shifted. The relocation takes place going up. The extension 96 strikes at the lower edge of the radial projection 74 and the change 66 on and pivots this clockwise so that via the approach 68, the trap 32, as already above explained, is withdrawn.

The two drive rods 52 and 78 are stamped sheets, whereby the angle plate 80 is either folded or welded is. The two bolts 54 and 88 are riveted or welded.

10 is a second variant of the main lock 10, in which the transmission 20 in conventional Manner, e.g. according to the configuration as in EP 0 575 701 A1 is trained, which is why the full content of this Reference is made. With this gear 20 the main latch 56 is pushed out. This main latch 56 has a guide groove 98 in which a bolt 100 to be led. About this bolt 100 is the lower Driving rod 52 driven. In this way the Extending the main latch 56 after the lower drive rod 52 shifted down.

In the area of the change 66, in particular to a small extent The lower drive rod 52 is at a distance from the projection 74 the stop 76, over which the drive rod 52nd either by actuating the follower 30 by means of the Pusher 26 or by moving the handlebar 64 by means of the Lock cylinder 38 is shifted up, whereby the latch bolts 36 of the additional bolt locks 12 withdrawn. At the same time, approach 68 the latch 32 of the main lock 10 withdrawn. A Collision of the bolt 100 with the main bolt 52 is caused by prevents the freewheel 94 in the guide groove 98.

Claims (11)

1. Door fastening with a main lock (10) and at least one additional bolt lock (12), whereby the main lock (10) has a latch (32) and a main bolt (56), and the latch (32) may be displaced by means of a key and/or a handle (26) from an extended latch position into a withdrawn open position and the main bolt (56) may be displaced by means of the key from an open position within the lock housing into an extended locking position and the additional bolt lock (12) is linked to the main lock (10) by means of a tie rod (16) with a drive rod in the main lock (10), whereby by means of the tie rod (16), the additional bolt (34) of the additional bolt lock (12) may be displaced from a rest position into a locking position and from the locking position into the rest position, whereby the additional bolt (34) is a latch bolt (36) whose rest position is a latch position, characterised in that the drive rod comprises a lower drive rod (52) and an upper drive rod (78), that the upper drive rod (78) is linked via the tie rod (16) to the additional bolt lock (12) and that the main bolt (56) may be displaced by means of the key via a gearbox (20) and the lower drive rod (52).
2. Door fastening according to Claim 1, characterised in that the lower drive rod (52) is directly linked to the upper drive rod (78).
3. Door fastening according to Claim 2, characterised in that for the linking of the drive rods (52, 78), one drive rod has a recess and the other drive rod has a projection (82) engaging in the recess.
4. Door fastening according to Claim 3, characterised in that the recess is a perforation, in particular a slot (84).
5. Door fastening according to Claim 3 or 4, characterised in that the projection (82) is a bolt, a welded-on member or a folded-over edge.
6. Door fastening according to one of the claims 3 to 5, characterised in that the projection (82) engages in the recess with play (86) running in the displacement direction of the two drive rods (52, 78).
7. Door fastening according to Claim 6, characterised in that the main bolt (56) may be extended in two stages and that the upper drive rod (78) is only carried along by the lower drive rod (52) during the first extension stage of the main bolt (56).
8. Door fastening according to one of the previous claims, characterised in that the main lock (10) has a handle nut (30), that the handle nut (30) is linked to a rotatably mounted change-over (66) and that the change-over (66) has a radial projection (74), which on displacement of the handle nut (30) engages with a stop (76) of the upper drive rod (78) and displaces this drive rod (78) immediately or after a delay.
9. Door fastening according to Claim 8, characterised in that rotatably mounted on the change-over (66) is a linkage (64), which may be displaced by means of the gearbox (20) so that the change-over (66) may be rotated by means of said linkage.
10. Door fastening according to one of the previous claims, characterised in that the outer drive rod (78) has a spigot (88) which, in the open position of the main bolt (56), engages in a control slot (90) provided in said outer drive rod.
11. Door fastening according to Claim 10, characterised in that the control slot (90) is open at the edge and opens into the side which faces in the direction of the locking movement of the outer drive rod (78).

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