EP2792828A2 - Retaining device for sliding doors and locking device for sliding doors - Google Patents

Abstract

A locking device (10) for a sliding door, the door leaf (11) is movably mounted in a door frame, has a clamping device (20) which is frontally inserted into a door leaf (11) and in the in a closed position of the door leaf (11) Engaging element (30) which is formed on a door frame (15) of the door frame, wherein the clamping device (20) comprises a clamping element (50) and is designed such that the insertion of the engagement element (30) in the clamping device ( 20) in a first direction (R1) which is opposite to the closing direction (S) of the door leaf (11), while the extraction of the engagement element (30) from the clamping device (20) in a second direction (R2), the the opening direction (O) of the door leaf (11) is opposite, is locked. The locking device (10) further has a counter to a restoring force movably mounted actuating element (70) for the clamping element (50), wherein the clamping element (50) by moving the actuating element (70) is operable such that the blocking of the engagement member (30) in the clamping device (20) can be canceled. In order to achieve a compact design of the locking device (10), the clamping device (20) in a sleeve (21) is formed, which is attached to a holding device (80), wherein the holding device (80) frontally inserted into the door leaf (11) is. In addition, the actuating element (70) is displaceably mounted in the holding device (80), wherein the actuating element (70) has a driving element (72) for actuating the clamping element (50).

Description

The invention relates to a locking device for a sliding door according to the preamble of claim 1 and a closure device for sliding doors according to claim 14.

Closing devices for sliding doors usually have a locking device, which is installed in the front side of the door leaf of the sliding door, and an engagement element which is arranged on a frame of the door frame. When closing the door leaf, the engagement element, for example a bolt, comes into engagement with the locking device, which is provided with a clamping device. The latter is formed with its clamping element such that the engagement element in a first direction, which is opposite to the closing direction of the door leaf, can be inserted into the clamping device. In a second direction, which is opposite to the opening direction of the surface element, however, the engagement element is locked. To release the lock, an actuating element is provided which, contrary to a spring force, can release the clamping element from the engagement element, so that the sliding door can be opened. The handling of the actuator via a rotary handle or a key. About the latter, the door can be locked if necessary. For this purpose, a shut-off device is provided in a lock case.

Such a closure device is for example off EP 2 105 556 A1 known. Their clamping element - one provided with a central recess

Clamping disk - is arranged in a sleeve pivotally in front of an inclined surface and loaded in the second direction by a compression spring. As a result, the clamping disc is permanently pressed in an inclined position. The actuator sits axially displaceable within the sleeve and passes through the clamping disc with two hooks. When closing the door, the engagement member between the hooks engages with the clamping washer. This is pressed out of its oblique position against the spring force, so that the engagement element can slide in the first direction through the clamping disc. On the other hand, if the door is pushed in the direction of opening, the spring-loaded clamping disk is inclined and blocks any further movement of the engagement element in the second direction. The door is locked and can only be opened by operating the actuator. The latter is connected via a coupling element and a rack with a handle or a key. If these are actuated, the coupling element pulls the actuating element back against the spring force in the first direction, wherein the hooks of the actuating element engage and erect the clamping disk. Its tilt is canceled and the engagement element can be pulled out of the clamping element in the second direction. The handle turns over a square pin a lock nut, which is in a lock case with the rack engaged.

The disadvantage here is that a relatively complicated mechanism is necessary for the operation of the clamping element, which causes relatively high production costs and is also prone to failure. In addition, the assembly is cumbersome, because the clamping device is to be set via a screw thread in a housing of the lock case, while the actuating element is separately connected by means of a screw through the sleeve and the actuating element with the coupling element. A further problem is that the known locking device can not be used for different closing purposes, for example, for use without locking option, for use in a sliding door for bathrooms or for a sliding door that leads to private or business areas. For this purpose, the entire locking device must always be adapted and replaced, which has an unfavorable effect on warehousing and logistics.

Another disadvantage of the known closure device is that the engagement element projects relatively far from the door frame in the door frame. When passing through the door, therefore, there is a relatively high risk that one on the engagement element gets stuck, which can lead to damage to the clothing but also to injuries. In addition, the engagement element interferes with the visual appearance of the door frame.

The aim of the invention is therefore to overcome these and other disadvantages of the prior art and to provide an improved closure device. The aim is in particular an alternative locking device that is inexpensive and easy to handle with simple means. The locking device should also be quick and easy to install and provide alternative locking options if necessary. A likewise improved engagement element is intended to reduce the risk of collision and to improve the visual appearance of the sliding door.

Main features of the invention are specified in the characterizing part of claim 1 and in claim 14. Embodiments are the subject of claims 2 to 13 and 15.

In a locking device for a sliding door, the door panel is movably mounted in a door frame, with a clamping device which is insertable in a door leaf and in which in a closed position of the door panel, an engagement member is engageable, which is formed on a door frame of the door frame, wherein the clamping device has a clamping element and is designed such that the insertion of the engagement element into the clamping device in a first direction, which is opposite to the closing direction of the door leaf, is effected, while the withdrawal of the engagement element from the clamping device in a second direction, the Opening direction of the door is opposite, is locked, and with a counter to a restoring force movably mounted actuating element for the clamping element, wherein the clamping element is actuated by moving the actuating element such that the blocking of the engaging member in the Kl Emmvorrichtung can be canceled, the invention provides that the clamping device is formed in a sleeve which is fixed to a holding device, wherein the holding device is frontally inserted into the door leaf, and that the actuating element is displaceably mounted in the holding device and a driving element for actuation of the clamping element has.

Thus, the clamping device and the actuating element are arranged in a common holding device. This not only allows a very compact and robust construction, but also a simple and quick installation, because the holding device is used together with the clamping device and the actuator frontally in the door leaf and fastened there. Other holding means or even functional elements, such as e.g. Racks or complex lever arrangements are no longer necessary, which significantly reduces the production costs. But also the susceptibility is significantly improved. The displaceably mounted within the holding device actuating element has a driving element with which the clamping element of the clamping device is actuated to release the engagement element in the closed position of the sliding door again from the clamping device or from the locking device can. The locking device according to the invention can be formed by fixing the sleeve for the clamping device in the holding device and the movable mounting of the actuating element in the holding device as a compact unit which is installed directly in the front side of the door leaf.

In a further embodiment, the actuating element is mounted longitudinally displaceably in the holding device in the first and second directions along a longitudinal axis of the locking device. Thus, the actuator when opening the sliding door can be operated in the same direction as the door leaf, which has a favorable effect on the handling of the locking device. Constructively, it is also advantageous if the actuating element has a body which is provided with a receptacle for the sleeve of the clamping device, i. the clamping device is seated within the actuating element, at least the actuating element encloses the clamping device at least partially.

In a first simple embodiment, the actuating element laterally each have a projection for fixing a handle, wherein the or each approach is integral with the actuating element. The lugs are on both sides of the door leaf in a respective lateral recess in the door leaf, each recess is covered by a handle shell, which is provided in the longitudinal direction of the locking device with a longitudinal recess. In each grip shell is a handle that is firmly connected through the longitudinal recess with the approach. If the door leaf is in its closed position, it is always kept reliably closed by the locking device and the engagement element fixed in the clamping device, even if no Locking the door is provided. The door can not accidentally open, for example, by a gust of wind or when the door leaf of the sliding door is not exactly installed flush and permanently strives in the opening direction. Moving the handle along the longitudinal recess in the opening direction of the door, the actuating element is moved within the holding device and against a spring force in the first direction. As a result, the blocking of the engagement element in the clamping device is released and the sliding door can be opened.

In a second embodiment, at least one approach can be rotatably mounted in the actuating element perpendicular to the longitudinal axis of the locking device, which is advantageous, for example, for training on a toilet or bathroom door. Thus, for example, the sliding door on one side, preferably the inside of the room, can be locked via the rotatable lug and the handle fixed thereto, while the lug or handle on the opposite room outside can only be actuated longitudinally, as in the first embodiment, but only if the door is unlocked. The latter preferably takes place via the handle, which is used directly as a blocking element within the grip shell. Handle and grip shell are in this case designed such that the rotatably mounted handle in a transverse position in an inner pocket of the grip shell with its pointing in the first direction and thus in the opening direction of the door handle end finds a positive stop within the grip shell, so that the axial movement of the handle is blocked within the longitudinal recess in the grip shell. Thus, at the same time the longitudinal movement of the actuating element is blocked in the holding device and the sliding door can be operated neither on the rotatably mounted nor on the opposite, non-rotatable handle. The door is firmly locked at least from the outside, because the engagement element can not be released from the clamping device. If you turn the handle and thus the approach back to the starting position, the actuator is released. It can be operated both via the inner and the outer handle.

In excellent rotational positions of the approach with the body of the actuator may be latched, for example by the approach is formed on a lock nut, which is provided at its peripheral edge with latching recesses, wherein provided in the actuating element a corresponding latching element is. The lock nut preferably carries a radial projection, with which the angle of rotation of the neck can be limited.

Another important embodiment provides that the holding device for receiving the actuating element comprises a housing or a frame, wherein the actuating element is provided on its outer circumference with a guide groove for the housing or the frame. This allows a particularly compact and robust design of a locking device, especially since the clamping device and the actuating element are accommodated together in the holder. This can be formed as a preassembled or prefabricated unit and installed as quickly as convenient in the door leaf, which must be provided with only one Stirnausnehmung and two lateral recesses for the lugs and the handles to be determined.

To fix the locking device in the door leaf, the holding device is provided with a cuff plate, wherein the housing or the frame are attached to the cuff plate. The frame preferably consists of two parallel legs, which are connected to one another at their ends facing the clamping element with the cuff plate and at its opposite ends via a web.

Between the holding device and the actuating element, a pressure spring is advantageously provided, which acts on the actuating element in the second direction with a force, wherein the holding device forms a stop for the actuating element in the second direction. As a result, the actuating element is always in a defined position when the door leaf is moved in the closing direction. Preferably, the compression spring is supported on the web of the frame and on a rear end face of the actuating element.

Variable application possibilities for the locking device open up when the actuating element can be locked in a further embodiment by means of a locking device relative to the holding device. The locking device is thus lockable against unauthorized opening of the sliding door. For this purpose, the locking device on a locking element, which eg - as already explained above - is formed by the handle which is rotatably mounted on the lateral projection of the actuating element and which engages in a defined angular or rotational position with the handle shell in such a way that a movement of the handle and therefore a movement of the actuating element in the first direction and thus locked in the opening direction of the sliding door. The blocking element is therefore a handle which is fastened to the bearing mounted rotatably in the actuating element perpendicular to the longitudinal axis and which can be locked in a rotational position relative to the holding device and / or relative to the door leaf. With such an embodiment, for example, a toilet or bathroom door can be equipped, which should be locked only from the interior of the room. A trained in the opposite handle emergency release still allows the unlocking of the actuator from the outside. For this purpose, a bore is introduced, for example, in the non-rotatable handle, which extends to the rotatable approach. In this a small recess is introduced, in which a tool can be attached, such as a screwdriver. With this the approach and with this the inside handle can be turned.

Alternatively, the locking element of the locking device is a bolt which is actuated by a key and which can be brought into a locking position with the actuating element and / or with the holding device in engagement. The sliding door can thus be closed if necessary, so that opening of the door leaf is only possible if the matching key is present. This can operate a lock cylinder, which is arranged in a lock case. The key can also be a Buntbartschlüssel.

In a further important embodiment, the invention provides that in the actuating element a recess and in the housing or the frame, a passage opening is formed, which receive the bolt together in its locking position. The opening cross section of the recess in the actuating element and the opening cross section of the passage opening in the frame are arranged congruent, when the actuating element in the second direction abuts against the stop of the holding device. The passage opening is advantageously formed in one or in each of the legs of the frame. Therefore, if one closes the sliding door on the locking device, the bolt engages through the frame directly into the actuating element, which consequently can not be moved relative to the clamping device. The door is locked.

It is particularly advantageous if the locking device is formed separately from the locking device, in particular as an independent prefabricated

Assembly unit that can be combined with the locking device as required. This opens up numerous possibilities, in particular the locking device can be installed without any possibility of locking in a door leaf, for example in sliding doors which require no locking, but which should always be held securely in the closed position. If a lock is desired, the locking device can be combined with a locking device. Structural changes to the locking device are not necessary, especially if the holding device of the locking device can be easily inserted into the locking device. The latter is arranged in the lock case, which is provided with a suitable recess. The lock case is inserted laterally into the door leaf before mounting the locking device. Subsequently, the locking device can be inserted into the front side of the door leaf, wherein the holding device so comes into concern in the lock case, that the latch of the locking device is above the passage opening in the frame and the recess in the actuating element.

An inventive closure device for a sliding door, the door leaf is movably mounted in a door frame, has an engagement member formed on a door frame of the door frame and a locking device according to one of claims 1 to 13, wherein the engagement element is preferably arranged retractable in the door frame. For this purpose, the engagement element is arranged, for example, together with a triggering element in a housing, wherein the triggering element is connected via a lever arrangement with the engagement element.

Fig. 1

eine Schrägansicht einer Verschlussvorrichtung für eine Schiebetür mit einem Eingriffselement und einer Zuhaltevorrichtung,

Fig. 2

die Verschlussvorrichtung von Fig. 1 in einer seitlichen Darstellung und in einer ersten Funktionsstellung, teilweise im Schnitt,

Fig. 3

die Verschlussvorrichtung von Fig. 1 in einer seitlichen Darstellung und in einer zweiten Funktionsstellung,

Fig. 4

eine Schrägansicht einer Zuhaltevorrichtung für eine Schiebetür,

Fig. 5

die Zuhaltevorrichtung von Fig. 4 in einer auseinandergezogenen Darstellung,

Fig. 6

eine andere Ausführungsform einer Verschlussvorrichtung für eine Schiebetür mit einem Eingriffselement und einer Zuhaltevorrichtung in einer seitlichen Darstellung, teilweise im Schnitt,

Fig. 7

die Verschlussvorrichtung von Fig. 6 von der gegenüberliegenden Seite aus betrachtet,

Fig. 8

ein Eingriffselement für eine Verschlussvorrichtung in einer ersten Funktionsstellung,

Fig. 9

das Eingriffselement von Fig. 6 in einer zweiten Funktionsstellung,

Fig. 10

eine Schrägansicht einer anderen Ausführungsform einer Verschlussvorrichtung für eine Schiebetür mit einem Eingriffselement, einer Zuhaltevorrichtung und einer Verriegelungsvorrichtung,

Fig. 11

die Zuhaltevorrichtung und die Verriegelungsvorrichtung von Fig. 8 in einer seitlichen Darstellung und in einer ersten Funktionsstellung, teilweise im Schnitt, und

Fig. 12

die Zuhaltevorrichtung und die Verriegelungsvorrichtung von Fig. 8 in einer seitlichen Darstellung und in einer zweiten Funktionsstellung, teilweise im Schnitt.

Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

Fig. 1

an oblique view of a closure device for a sliding door with an engagement member and a locking device,

Fig. 2

the closure device of Fig. 1 in a side view and in a first functional position, partly in section,

Fig. 3

the closure device of Fig. 1 in a side view and in a second functional position,

Fig. 4

an oblique view of a locking device for a sliding door,

Fig. 5

the locking device of Fig. 4 in an exploded view,

Fig. 6

another embodiment of a closure device for a sliding door with an engagement member and a locking device in a side view, partially in section,

Fig. 7

the closure device of Fig. 6 from the opposite side,

Fig. 8

an engagement element for a closure device in a first functional position,

Fig. 9

the engaging element of Fig. 6 in a second functional position,

Fig. 10

an oblique view of another embodiment of a closure device for a sliding door with an engagement member, a locking device and a locking device,

Fig. 11

the locking device and the locking device of Fig. 8 in a side view and in a first functional position, partly in section, and

Fig. 12

the locking device and the locking device of Fig. 8 in a side view and in a second functional position, partly in section.

The in the Fig. 1 to 10 Generally designated 10 locking device is provided for a sliding door, the door leaf 11 is movably mounted in a (not shown) door frame. Fig. 1 shows in principle an opening position of the door leaf 11. This has a front side 12, the - like Fig. 2 shows - in the closed position of the door leaf 11 a frame 15 of the door frame facing, and two (not shown) side surfaces, in each of which a grip shell 13 is inserted. The locking device 10 is inserted into the end face 12 of the door leaf 11, and fixed there by means of screws 14. The door leaf 11 is provided for receiving the locking device 10 and the Griffmuscheln 13 with corresponding (unspecified) recesses.

The frame 15 carries an engagement member 30 which is in the closed position of the door panel 11 with the locking device 10 in engagement. The engagement element 30 is, for example, a bolt with an angular or round cross section, which is rigidly or floatingly connected to the door frame 15. But you can also form the bolt 30 in the frame 15, that is, the bolt 30 is - as in Fig. 1 shown - in open position of the door leaf 11 so far retreated into a housing 33 that only the front end protrudes. About a trigger element 32, for example, a stylus, which also protrudes a little way from the frame 15 and is actuated when closing the door panel 11, the bolt 30 pushes out of the housing 33 when closing the door. Once the door leaf 11 has reached its closed position, the bolt 30 is fully extended. It engages with the locking device 10, wherein a clamping device 20 is formed in the locking device 10 such that the insertion of the engagement element 30 into the clamping device 20 in a first direction R1, which is opposite to the closing direction S of the door leaf 11, is effected, while the extraction of the engaging member 30 from the clamping device 20 in a second direction R2, which is opposite to the opening direction O of the door panel 11, is locked. The engagement element 30 is thus fixed in the closed position of the door of the clamping device 20, so that the sliding door does not open unintentionally.

The clamping device 20 has a sleeve 21 which is arranged together with an actuating element 70 in a holding device 80. It has two pivotally mounted clamping elements 50 in the form of clamping discs, which are parallel to each other and the engagement member 30 frictionally fix in the clamping device 20 when the door leaf 11 has reached its closed position. To release this connection, the actuating element 70 is used, which is mounted relative to the clamping device 20 and against a restoring force longitudinally displaceable in the holding device 80. With the actuating element 70, the clamping elements 50 are actuated such that the blocking of the engagement element 30 in the clamping device 20 is released.

Each clamping element 50 is seated, as the sectional view of Fig. 2 shows, transverse to a longitudinal axis A of the locking device 10 in a sleeve 21 which has a flat end face 22 perpendicular to the longitudinal axis A and coaxial with the longitudinal axis A is provided with a stepped through-bore 211. At its front end facing the engagement element 30, the sleeve 21 has an inclined surface 24, which forms a contact surface 24 for the clamping elements 50. Behind the clamping elements 50 in the sleeve 21, a compression spring 26 is arranged, which is supported on a step 212 of the bore 211 and the clamping elements 50 permanently in the second direction R2 presses against the inclined surface 24. The latter is aligned both vertically and horizontally obliquely to the longitudinal axis A, so that the clamping elements 50 corresponding obliquely are aligned. These have each one centric (unspecified) recess, which is preferably rectangular in shape to accommodate both round and square engagement elements 30 can. Due to the double inclination of the clamping elements 50 is compared to the engaging member 30, which is inserted in closing the door leaf 11 in the first direction R1 in the clamping elements 50, achieved in the opposite direction R2, a significantly improved clamping effect.

The sleeve 21 is secured with its end face 22 on the holding device 80, which is provided for this purpose with a face plate 81. The latter has concentric with the longitudinal axis A of the locking device 10 has a recess 43 and screw holes 811. The latter are provided for receiving (not shown) screws which fix the sleeve 21 on the face plate 81, while the sleeve 21 has at its front side 22 a neck extension 23, which projects through the recess 43 of the faceplate 81. The neck projection 23 serves to center the sleeve 21 in the holding device 80 and for easier insertion of the engagement member 30 in the clamping device 20. The neck extension 23 opposite end 27 of the sleeve 21 has a cylindrical outer periphery 28th

The cuff plate 81 of the holding device 80 is perpendicular to the longitudinal axis A of the locking device 10. It is attached to the front side by means of screws 14 on the door leaf 11, which is provided for this purpose with a corresponding (not shown) frontal lowering. The latter is designed such that the cuff plate 81 and an optional cover plate 89 are flush with the end face 12 of the door leaf 11. The cover plate 89 is provided for receiving the neck extension 23 of the sleeve 21 with a recess 431, wherein the neck extension 23 is preferably approximately flush with the cover plate 89. Holes 812 in the faceplate 81 and the cover plate 89 receive the screws 14. Additional holes 432 in the cover plate 89 are used to accommodate spacers 433 which are attached to the faceplate 81.

For receiving and guiding the actuating element 70, the holding device 80 has a frame 82. This is substantially U-shaped with two spaced apart parallel legs 83, 84 which are connected at their clamping elements 50 facing ends 831, 841 with the forend 81 and at their opposite ends 832, 842 via a web 87 together are. The ends 831, 841 are for fixing to the forehead plate 81 with bent feet 833, 843, each foot 833, 843 is fixed by means of a rivet 834, 844 on the faceplate 81. The rivets 834, 844 are fixed in the holes 812 for the screws 14 and connect the cuff plate 81 with the cover plate 89. The legs 83, 84 and the web 87 are preferably in one piece. In the region of the web 87, a passage opening 88 is introduced in each leg 83, 84.

The actuating element 70 arranged in the holding device 80 together with the clamping device 20 is mounted longitudinally in the frame 82 of the holding device 80 along the longitudinal axis A and therefore parallel to the first and second directions R1, R2. It has a body 69 with an outer periphery 71, which is provided at its top and bottom with a respective guide groove 73. Each guide groove 73 is parallel to the longitudinal axis A and takes over their entire length in each case a leg 83, 84 of the frame 82.

In the actuator 70 and in the body 69 is - such as the Fig. 9 and 10 - a step-shaped receptacle 75 for the sleeve 21 of the clamping device 20 is formed, wherein the receptacle 75 has a cylindrical portion 751, which receives the cylindrical end 27 of the sleeve 21 slidably. It can be seen that the actuating element 70 at least partially encloses the clamping device 20 as a kind of sleeve, wherein the actuating element 70 with its body 69 is mounted so as to be longitudinally displaceable within the frame 82 relative to the clamping device 20.

Between the holding device 80 and the actuating element 70, a compression spring 85 is provided, which urges the actuating element 70 in the second direction R2 with a permanent force and presses against the face plate 81 of the holding device 80. The latter thus forms with the face plate 81 in the second direction R2, a stop 86 for the actuating element 70. The compression spring 85 is preferably supported on the rear web 87 of the frame 82 and on the rear end face 74 of the actuating element 70, wherein the end face 74 preferably with a recess 741 is provided which receives the compression spring 85 at least partially.

In order to push the actuator 70 to open the door leaf 11 within the frame 82 away from the stop 86 and against the spring 85 in the direction R1, on each side of the door leaf 11, a handle 60, 62 is provided, each via a lateral approach 76 can be fixed to the actuating element 70. The approach 76 is formed in a first embodiment of the invention on both sides of the actuating element 70 integral with the actuating element and preferably formed as a square neck. Each handle 60, 62 is - as in Fig. 1 to see - arranged in a grip shell 13 and in this - as in Fig. 3 indicated - laterally displaceable. In the grip shell 13, a longitudinal recess 131 is formed for this purpose. The actuator 70 is in its forward position on the stop 86, the handle 60, 62 is located centrally in the handle shell 13, which is embedded laterally and flush in the door leaf 11. Each grip shell 13 is provided with a recess 132, so that the handle 60, 62 with the edge 133 of the grip shell 13 is substantially flush. The recess in the grip shell 13 is dimensioned such that the substantially elongated handle 60, 62, if he - as in the Fig. 1 . 2 . 3 . 7 and 10 shown - is oriented approximately vertically, can be moved from a central position in the longitudinal direction A and in the first direction R1. Upon release, each handle 60, 62 is returned to the middle or home position by the spring-loaded actuator 70.

In another embodiment of the invention, a projection 76 is rotatably mounted in the actuating element 70 perpendicular to the longitudinal axis A (see Fig. 4 and 5 ). For this purpose, the projection 76 has a lock nut 761, which is inserted laterally into a corresponding cylindrical recess 765 in the body 69 of the actuating element 70. Laterally, the lock nut 761 carries a radial projection 764, which moves in an arcuate guide groove 766. The projection 764 and the guide groove 766 serve to limit the rotational movement of the lock nut 761 and thus the rotational movement of the handle 60 to, for example, 90 °.

The attached to the rotatable shoulder 76 handle 60 may - like Fig. 6 shows - by a rotation about 90 ° from a vertical starting position to a horizontal

Position can be brought. In this position, the handle 60 forms a locking element 901 of a locking device 90 for the locking device 10, because the overall approximately elongated handle 60 finds with its end 61 within the recess 132 of the grip shell 13 in the direction of R1 stop 134. He can therefore not along the longitudinal axis A are moved in the first direction R1. Consequently, the actuator 70, which is connected via the projection 76 with the handle 60, can not be moved within the holding device 80 in the first direction R1. The actuator 70 is rather blocked. The clamping elements 50 are located Further, in engagement with the engagement member 30, which is fixed in the clamping device 20. The door is locked, because the actuator 70 can not operate on the second, lying on the opposite side of the door leaf handle 62.

This embodiment of the invention is preferably used for a toilet or bathroom door with the rotatable lug 76 with the rotatable handle 60 inside the toilet or bathroom. The outside on the other side of the door leaf 11 handle 62 is rigidly formed on the actuating element 70 via the integral with the actuator 70 approach 76. It can only be moved in the first direction R1 when the handle 60 is not in its locking position to actuate the actuator 70. However, is the handle 60 in its function as a blocking element 901 in the in Fig. 6 shown blocking position, the door can not be opened via the outer handle 62, because the actuating elements 70, the clamping elements 50 can not operate to release the engagement member 30.

As an emergency release from the outside there always vertical and rotationally fixed grip 62 has a through hole 64 in the axis of the lock nut 761. Therein a schlitzkopfschraubenähnliches driver element 65 is rotatably mounted, which is rotationally rigidly coupled to the lock nut 761. The slotted head of the driver element 65 is cosmetically flush recessed flush in the outer handle 60. Via a suitable tool, e.g. a screwdriver, can therefore be rotated from the outside, the lock nut 761 and with this the approach 76, so that the locking element 901 inside handle 60 can be brought from its horizontal locking position to the vertical open position. Now, the outer handle 62 can be moved in the first direction R1, so that the engagement element 30 is released from the clamping device 20 via the actuating element 70. The door can be opened.

To lock the rotatable handle 60 in its functional positions for the user noticeably, the end nut 761 of the rotatable lug 76 is provided at its peripheral edge at equal angular intervals with locking recesses 762, while in the actuating element 70, a corresponding locking element 763 is formed, for example a ball , This is arranged in the recess 741 for the compression spring 85, which is consequently formed to the recess 765 as a through hole. In this embodiment, therefore, guided in the recess 741 supported Compression spring 85 not on the end face 74 of the actuating element 70, but on the ball 763, which is consequently pressed into the respective corresponding recess 762. At the same time, the actuating element 70 is pressed by the compression spring 85 against the stop 86 of the holding device 80.

For the actuation of the clamping elements 50 in the sleeve 21 of the clamping device 20, a driving element 72 is formed on the actuating element 70 at the end, which engages behind the clamping elements 50 opposite to the compression spring 26. The driving element 72 thus forms a hook, which detects the clamping elements 50 and moves against the compression spring 26 in the direction of R1 when moving the actuating element 70 in the first direction R1, the clamping elements 50 perform a tilting or pivoting movement and with respect to the longitudinal axis A of their Incline or tilt out at least a bit far up. In the embodiments of the Fig. 2 . 9 and 10 is the driving element 72 preferably integrally with the actuating element 70. So that the hook-shaped driving element 72 can engage behind the clamping elements 50 of the clamping device 20, a slot 25 is formed in the sleeve 21 of the clamping device 20, wherein the driving element 72, the slot 25 and thus the Sleeve 21 penetrated laterally. The slot 25 is continued in the faceplate 81 so that there is sufficient space for the driving element 72 in front of the clamping elements 50. The forend plate 81 is provided for this purpose below the recess 43 with a corresponding slot 44 which is covered to the outside by the Abgeckplatte 89.

In order to simplify the assembly of the overall sleeve-shaped actuating element 70 on the sleeve 21 of the clamping device 20, a recess 78 is provided in the body 69. This is helpful in order to be able to introduce the carrier elements 72 into the slot 25 of the sleeve 21.

• Sobald das Türblatt 11 gegenüber der Türzarge 15 seine Schließstellung erreicht hat, dringt das Eingriffselement 30 durch den Halsansatz 23 der Hülse 21 hindurch in die Klemmvorrichtung 20 ein. Deren Klemmelemente 50 werden von der Druckfeder 26 gegen die Schrägfläche 24 gedrückt, was zu deren Verkippung gegenüber der Längsachse A führt. Der lichte Durchmesser der Ausnehmungen in den Klemmelementen 50 wird aus den Richtungen R1 und R2 gesehen verengt, so dass die Klemmelemente 50 beim Einführen des Eingriffselements 30 in die Verriegelungsvorrichtung 20 zunächst ein Hindernis darstellt. Schließt man jedoch die Tür in Schließrichtung S, taucht das Eingriffselement 30 in die Hülse 21 der Klemmvorrichtung 20 ein, bis es mit seinem freien Ende gegen die Klemmelemente 50 stößt und diese - beim weiteren Schließen der Tür-entgegen der Feder 26 in die erste Richtung R1 drückt. Dabei stellen sich die Klemmelemente 50 etwa senkrecht zur Längsachse A auf und geben so den kompletten Durchmesser ihrer Ausnehmung für das Eingriffselement 30 frei. Dieses kann stufenlos und freilaufend durch die Klemmelemente 50 hindurch in die Klemmvorrichtung 20 eindringen.

The locking device 10 functions as follows:

• As soon as the door leaf 11 has reached its closed position relative to the door frame 15, the engagement element 30 penetrates through the neck projection 23 of the sleeve 21 into the clamping device 20. Their clamping elements 50 are pressed by the compression spring 26 against the inclined surface 24, which leads to their tilting with respect to the longitudinal axis A. The clear diameter of the recesses in the clamping elements 50 is narrowed as seen from the directions R1 and R2, so that the clamping elements 50 during insertion of the engaging element 30 into the locking device 20 is initially an obstacle. However, closing the door in the closing direction S, the engagement member 30 is immersed in the sleeve 21 of the clamping device 20 until it abuts with its free end against the clamping elements 50 and this - upon further closing of the door-against the spring 26 in the first direction R1 pushes. In this case, the clamping elements 50 are approximately perpendicular to the longitudinal axis A and thus release the complete diameter of its recess for the engagement member 30. This can penetrate steplessly and free-running through the clamping elements 50 into the clamping device 20.

In the opposite direction R2, however, a subsequent movement of the engagement member 30 is initially locked. This is done by friction of the clamping elements 50 on the or the side surfaces of the engaging member 30, because the compression spring 26 presses the clamping elements 50 pivotally applied to the inclined surface 24 back in the closing direction S. The clamping elements 50 are wedged by their oblique position with the side surfaces of the engaging member 30, which is locked in the clamping device 20 and in the second direction R2 are not pulled out of the locking device 10. The door is securely held in the closed position. Because the clamping elements 50 are both horizontally and vertically inclined to the longitudinal axis A, resulting - based on a square cross-section of the engaging member 30 is an approximately diagonal orientation of the recesses in the clamping elements 50, resulting in a significantly improved wedge effect, even with engagement elements, the have a round cross-section.

To cancel the blocking, the actuating element 70 is pulled against the spring 85 in the direction R1 or in the opening direction O via one of the handles 60, 62. The legs 83, 84 slide in the guide grooves 73 of the engagement member 70. At the same time draw the end hook-shaped driving elements 72 of the actuating element 70, the clamping elements 50 against the force of the spring 26 in the direction R1 back. The tilting of the clamping elements 50 with respect to the longitudinal axis A and thus the blocking of the engagement element 50 in the clamping elements 50 is released and the engagement element 30 can slide out of the clamping device 20. The door is released and can be opened in opening direction O. In order to lock the sliding door against unauthorized access via a key 93, the actuating element 70 in a further embodiment of the invention by means of a separate locking device 90 relative to the holding device 80 is formed lockable (see the Fig. 8 to 10 ). The locking device 90 has for this purpose a latch 92, the - like Fig. 9 shows - in a locking position with the actuating element 70 and the holding device 80 is engageable. The latter is provided for this purpose in the legs 84 of the frame 82 with the passage opening 88, while in the actuating element 70 perpendicular to the longitudinal axis A, a recess 77 is formed. Their opening cross-section and the opening cross-section of the through opening 88 are, when the actuating element 70 abuts the stop 86 of the holding device 80, congruent one above the other, so that the latch 92 can be retracted perpendicular to the longitudinal axis A through the passage opening 88 into the recess 77 of the actuating element 70.

The latch 92, which is mounted so as to be longitudinally displaceable in a lock case 91, is moved by means of a catch 95 which is formed on a lock cylinder 96. But you can also form the locking device 90 with a (not shown) Buntbartschlüssel that actuates the bolt 92 when turning in the lock case 91 accordingly. This one can be in his in Fig. 10 shown opening position and in the locking position of Fig. 9 each latched, for example by means of a spring-loaded locking element 97 which is arranged in the lock case 91.

Thus, the locking device 90 is arranged separately from the locking device 10 in a lock case 91, which is laterally inserted into the door leaf 11, while the locking device 10 is mounted frontally in the door leaf 11. For receiving the locking device 10, the lock case 91 is provided with a lateral recess 94, which receives the holding device 80 together with the actuating element 70. If the locking device 10 is inserted into the lock case 91, the latch 92 movable perpendicular to the longitudinal axis A of the locking device 92 lies exactly above the passage opening 88 in the leg 84 and the recess 77 in the actuating element 70, thus advancing the latch 82 in its front stop position the face plate 81 of the holding device 80 can be locked.

It can be seen that the locking device 10 and the sliding door engagement element 30 together form a closure device 100, wherein the Locking device initially alone in the door panel 11 can be used. The sliding door can be easily closed in this case, the door leaf 11 is secured in its closed position against accidental opening, because the engagement member 30 is held in the clamping device 20 by force and / or frictional engagement. To open the door leaf 11, the actuating element 70 is pulled against the compression spring 85 via one of the handles 60 out of the front stop position in the direction R1, wherein the driving element 72, the clamping elements 50 engages and opposite to the compression spring 26 is also moved in the direction R1. The clamping elements 50 are released from the engagement element 30, which is thus released by the clamping device 20. The door can be opened.

If, in addition to the locking device 10, the locking device 90 is built into the door leaf 11, it can be locked against unauthorized opening by the latch 92 being extended beyond the locking cylinder 96.

In order to reduce the risk of collision with one of the door frame 15 projecting engagement member 30, this is preferably formed retractable in the door frame 15. For this purpose, the engagement element 30 sits - like the Fig. 6 and 7 show - longitudinally displaceable in the housing 33, which is embedded in the front side of the frame 15. The triggering element 32 is parallel to the engagement element 30 and is also mounted longitudinally displaceable in the housing 33. Both elements 30, 32 are coupled via a lever 34 with the engagement member 30. The lever 34 is pivotally mounted about a rotation axis 35. He has two different lengths of lever arms 361, 362, which are formed such that the engagement member 30 and the trigger member 32 with the sliding door open approximately the same amount beyond a stop plate 336 for the housing 33. If, however, the door leaf 11 of the sliding door in its closed position, the trigger member 32 is pressed by the door leaf, the cover plate 89 or one of the spacers 433 against a restoring force in the housing 33, while the engagement member 30 is extended to the clamping device 20 in To interfere. Consequently, if the door 11 is in the open position, no force is applied to the triggering element 32. A (not shown) spring ensures that the lever 34, the engagement member 30 back into the housing 33 retracts and the trigger member 32 returns to its original position. In the housing 33 formed stops 37, 38, 39 for the lever 34 always provide for defined positions of the engaging member 30 relative to the stop plate 36. This is by means of screws 31 frontally in the frame 15, the housing 33 has connecting flanges 331 which are provided with enlarged holes 332 in the area of the screws 31. This makes it possible, the housing 33 relative to the longitudinal axis A of the locking device 10 to align horizontally and vertically.

A further developed embodiment of the invention provides that the housing 33 is mounted floating relative to the end face of the frame 15 and can adjust itself horizontally and vertically in two directions. This is preferably carried out continuously, for example by a shift. For this purpose, the housing 33 is mounted with the stop plate 36 on the frame 15, wherein the holes 332 are initially approximately concentric with the screws 31. When closing the door leaf 11 on the frame 15 then meets the floating bearing and continuously self-adjusting engagement member 30 on the opening in the neck 23 of the clamping device 20. If a fit inaccuracy occurs and the engaging member 30 next to the opening clamping device 20 butts yield together with the housing 33rd Floating engagement member 30 from the pressure of the closing door leaf 11 and is thus automatically aligned with the longitudinal axis A of the locking device 10.

The invention is not limited to one of the above-described embodiments, but can be modified in many ways. Thus, instead of two clamping disks 50, only one or more than two can be used. Each clamping disc 50 forms a kind of frame which encloses the engagement element 30. Each frame may also be divided into two, each frame half is pivotally mounted within the clamping sleeve 21 against the compression spring 26 to come into oblique position with the engaging member 30 in frictional engagement, this should be without actuation of the actuator 70 in the second direction R2 from the clamping device 20th be pulled out. The clamping elements 50 can also be designed as balls, which are arranged within the clamping device 20 with respect to an inclined surface and cooperate with the engagement element 30.

The latch 92 of the locking device 90 may, in order to block the movement of the actuating element 70 in the direction R1, for example, between the end face 74 of the actuating element 70 and the web 87 of the frame 82 engage. If required, the latter can also be designed as a housing which encloses the actuating element 70 on several sides.

The driving element 72 is preferably integral with the actuating element 70. However, it may also be formed separately. If split clamping elements 50 are used, a plurality of driving elements 72 are correspondingly provided in order to cancel the blocking effect of the locking device 10, which forms a total of a Klemmgesperre. In order to simplify the assembly of the actuating element 70 on the sleeve 21, the body 69 may be provided on its upper side with an additional recess 78.

Overall, the clamping and locking mechanism is formed in all the embodiments shown such that the engagement element 30 can always intervene in the locking device 20 regardless of the locking state of the locking device 90 in the first direction R1, i. the door can be closed at any time. In the opposite direction R2, however, the engagement member 30 is locked by the clamping mechanism of the clamping device 20, so that the door without actuation of the actuator 70 can not be opened.

It can be seen that a locking device 10 for a sliding door, the door leaf 11 is movably mounted in a door frame, a clamping device 20 which is frontally inserted into a door leaf 11 and in which in a closed position of the door leaf 11, an engagement member 30 is engageable formed on a door frame 15 of the door frame, wherein the clamping device 20 comprises a clamping element 50 and is formed such that the insertion of the engaging member 30 in the clamping device 20 in a first direction R1, which is opposite to the closing direction S of the door leaf 11, is effected while the extraction of the engaging member 30 from the clamping device 20 in a second direction R2, which is opposite to the opening direction O of the door panel 11, is locked. The locking device 10 further has a counter to a restoring force movably mounted actuating element 70 for the clamping element 50, wherein the clamping element 50 is actuated by moving the actuating element 70 such that the blocking of the engaging member 30 in the clamping device 20 can be canceled. In order to obtain a compact design of the locking device 10, the clamping device 20 is formed in a sleeve 21 which is fixed to a holding device 80, wherein the holding device 80 is frontally inserted into the door leaf 11. In addition, the actuating element 70 slidably mounted in the holding device 80, wherein the actuating element 70 has a driving element 72 for actuating the clamping element 50.

All of the claims, the description and the drawings resulting features and advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in various combinations. <B> LIST OF REFERENCES </ b> A longitudinal axis 26 compression spring O opening direction 27 The End R1 first direction 28 outer periphery R2 second direction 30 engaging member S closing direction 31 screw 32 triggering element 10 locking device 33 casing 11 door leaf 331 flange 12 front 332 drilling 13 recessed grip 336 stop plate 131 longitudinal recess 34 lever 132 deepening 35 axis of rotation 133 edge 361 lever arm 134 attack 362 lever arm 14 screw 37 attack 15 door frame 38 attack 20 clamping device 39 attack 21 shell 43 Recess (forend plate) 211 Through Hole 431 Recess (cover plate) 212 step 432 drilling 22 front 433 spacer 23 neck 44 slot 24 sloping surface 50 clamping element 25 slot 60, 62 Handle 61 The End 831 The End 64 Through Hole 832 The End 69 body 833 foot 70 actuator 834 rivet 71 outer periphery 84 leg 72 driving element 841 The End 73 guide 842 The End 74 front 843 foot 741 recess 844 rivet 75 admission 85 compression spring 751 cylindrical section 86 attack 76 approach 87 web 761 lock follower 88 Through opening 762 recess 89 cover 763 locking element 90 locking device 764 head Start 901 blocking element 765 recess 91 lock case 766 guide 92 bars 77 recess 93 key 78 recess 94 recess 80 holder 95 takeaway 81 Stulpplatte 96 lock cylinder 811 screw 97 locking element 812 drilling 100 closure device 82 frame 83 leg

Claims (15)

Locking device (10) for a sliding door whose door leaf (11) is movably mounted in a door frame, a) with a clamping device (20) which is insertable into a door leaf (11) and in which in a closed position of the door leaf (11) an engagement element (30) is engageable, which is formed on a door frame (15) of the door frame . b) wherein the clamping device (20) has a clamping element (50) and is designed such that the insertion of the engagement element (30) in the clamping device (20) in a first direction (R1), the closing direction (S) of the door leaf ( 11) is opposite, while the extraction of the engaging member (30) from the clamping device (20) in a second direction (R2), which is opposite to the opening direction (O) of the door panel (11) is locked, and c) with a counter to a restoring force movably mounted actuating element (70) for the clamping element (50), d) wherein the clamping element (50) can be actuated by moving the actuating element (70) such that the blocking of the engagement element (30) in the clamping device (20) can be canceled,
characterized, e) that the clamping device (20) in a sleeve (21) is formed, which is fixed to a holding device (80), wherein the holding device (80) frontally into the door leaf (11) can be inserted, and f) that the actuating element (70) in the holding device (80) is displaceably mounted and a driving element (72) for actuating the clamping element (50). Locking device according to claim 1, characterized in that the actuating element (70) in the first and second directions (R1, R2) along a longitudinal axis (A) of the locking device (10) is mounted longitudinally displaceable in the holding device (80). Locking device according to claim 1 or 2, characterized in that the actuating element (70) has a body (69) which is provided with a receptacle (75) for the sleeve (21) of the clamping device (20). Locking device according to one of claims 1 to 3, characterized in that the actuating element (70) laterally each have a lug (76) for fixing a handle (60). Locking device according to claim 4, characterized in that the projection (76) is integral with the actuating element (70). Locking device according to claim 4 or 5, characterized in that at least one projection (76) perpendicular to the longitudinal axis (A) is rotatably mounted in the actuating element (70). Locking device according to one of claims 1 to 6, characterized in that the holding device (80) for receiving the actuating element (70) has a housing or a frame (82). Locking device according to claim 7, characterized in that the actuating element (70) is provided on its outer circumference (71) with a guide groove (73) for the housing or the frame (82). Locking device according to one of claims 1 to 8, characterized in that between the holding device (80) and the actuating element (70) a compression spring (85) is provided, which acts on the actuating element (70) in the second direction (R2) with a force , Locking device according to one of claims 1 to 9, characterized in that the holding device (80) in the second direction (R2) forms a stop (86) for the actuating element (70). Locking device according to one of claims 1 to 10, characterized in that the actuating element (70) by means of a locking device (90) relative to the holding device (80) is lockable, wherein the locking device (90) has a locking element (901). Locking device according to claim 11, characterized in that , the locking element (901) is a handle (60) which is fixed to the perpendicular to the longitudinal axis (A) rotatably mounted in the actuating element (70) projection (76) and in a rotational position relative to the holding device (80) and / or relative to the door leaf (11) can be locked. Locking device according to claim 11, characterized in that the blocking element (901) is a latch (92) which can be actuated by a key (93) and which is in a locking position with the actuating element (70) and / or with the holding device (80). can be brought into engagement. Closing device (100) for a sliding door, whose door leaf (11) is movably mounted in a door frame, with an engagement element (30) formed on a door frame (15) of the door frame, and with a locking device (10) according to any one of the claims 1 to 13. Locking device according to claim 14, characterized in that the engagement element (30) is arranged retractable in the door frame (15)

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