Window / door security
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- ABUS AUGUST BREMICKER SOEHNE KG
- Filing Date
- 2006-10-09
- Publication Date
- 2026-07-23
AI Technical Summary
Existing window/door locks for turn sashes or turn-tilt sashes lack sufficient security against forced opening, particularly when the locking bolt must be released to allow the sash to be opened or tilted.
A window/door lock with a locking bolt that can be moved axially between a release position, an unsecured locking position, and a securable locking position, secured by a safety mechanism, including a rotatable rotating bolt that interacts with a blocking means to prevent unauthorized release, and a compact design that allows for easy operation and enhanced security.
The solution provides enhanced security against forced opening by allowing two security levels and preventing unauthorized access, while maintaining ease of operation with a slim and space-efficient design.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
[0001] The present invention relates to a window / door locking device for a casement sash or a tilt-and-turn sash, in particular of an inward-opening window or an inward-opening door, with a locking bolt that can be inserted into a passage that can be attached to the sash.
[0002] The use of window / door locks to secure windows or doors is generally known. With casement or tilt-and-turn windows, the problem is that the window / door lock must be releasable to allow the window / door to be opened and / or tilted.
[0003] DE 101 01 767 A1 describes such a window / door lock in which the locking bolt can be extended and retracted from the opening by sliding it between a locking and a release position. The locking bolt is held in the locking position by a retaining device similar to a ballpoint pen mechanism. A leaf spring, held down by the ballpoint pen mechanism, is also provided. If the ballpoint pen mechanism is forcibly removed from the outside, one end of the leaf spring moves into the path of movement of the locking bolt, thus preventing the locking bolt from extending from the opening.
[0004] The invention is based on the objective of providing a window / door security device of the type mentioned above which has increased break-in resistance.
[0005] This problem is solved by a window / door lock with the features of claim 1, and in particular by the fact that the locking bolt is axially movable between a release position, an unsecured locking position and a locking position that can be secured by means of a locking mechanism, wherein the locking bolt can be brought from the release position beyond the unsecured locking position into the lockable locking position by means of an axial actuation.
[0006] In addition to the release position and the unsecured locking position, a further position is provided into which the locking bolt can be moved. This position is the lockable locking position, which can be secured by means of the locking mechanism. The locking mechanism, which can secure and hold the locking bolt in position, represents a protective device that further makes it more difficult to release the locking bolt by force from the outside, and also prevents unauthorized release of the locking bolt from the inside.
[0007] Two security levels can be selected for the window / door locking mechanism. In the unsecured locking position, simple unlocking is possible, for example, to quickly and easily tilt and open the relevant sash several times during the day. In the lockable locking position, however, unlocking is only possible when the locking mechanism is moved into a position that releases the locking bolt.
[0008] In particular, the locking mechanism can be provided with an access control feature so that only authorized users are able to move the locking mechanism into the position that releases the locking bolt. This prevents unauthorized users from moving the locking bolt from the unsecured locking position to the release position, thus ensuring that tilting and / or opening the relevant sash remains the sole prerogative of an authorized user.
[0009] Since there is usually little space available for mounting the window / door lock on a frame in a direction transverse to the longitudinal axis of the locking bolt, a slim design of the window / door lock is advantageous. In particular, it is preferable for the locking mechanism to be arranged in axial extension of the locking bolt. Furthermore, arranging the locking mechanism in axial extension allows for only minor modifications to the design of existing window / door locks that are movable between a release position and a locking position, as only an end section of the existing window / door lock needs to be adapted.
[0010] It is particularly preferred if the locking mechanism comprises a rotatable rotary bolt which interacts with a blocking element of the bolt to lock or release the bolt. A locking mechanism comprising a rotatable bolt can be designed to be more space-saving, particularly in the direction transverse to the longitudinal axis of the bolt, than a locking mechanism comprising a linearly movable bolt which is movable transversely to the longitudinal axis of the bolt and requires a certain displacement. Furthermore, the rotary movement of a key for a lock cylinder, which is provided, for example, for actuating and / or securing access to the locking mechanism, can be converted particularly easily into a rotary movement of the rotary bolt.
[0011] According to one embodiment of the invention, the locking bolt can be automatically secured by axial actuation beyond the unsecured locking position. To secure the locking bolt, it is therefore only necessary to move the locking bolt axially from the release position through the unsecured locking position or from the unsecured locking position to the lockable locking position. In particular, only one hand is required to perform the securing process. This ensures a high level of user comfort.
[0012] Preferably, for automatic locking of the locking bolt, the locking mechanism, in particular a rotary bolt, is pre-tensioned into a position that secures the locking bolt. This makes automatic locking particularly easy to implement. In particular, a spring element can be provided for pre-tensioning the rotary bolt, which preferably bears support on one side against the rotary bolt and on the other side against the housing of a locking cylinder.
[0013] According to another embodiment of the invention, the locking mechanism comprises a locking cylinder with a drive element by means of which the rotary bolt is rotatably connected to the locking cylinder. Preferably, the drive element comprises a particularly cylinder-segment-shaped end section of a cylinder core of the locking cylinder, wherein the end section has a shape that deviates from a rotationally symmetrical form, and wherein the drive element engages in a corresponding recess provided in a contact section of the rotary bolt to enable the rotary actuation of the rotary bolt.
[0014] According to a further embodiment of the invention, the rotary bolt comprises a sleeve section which at least partially surrounds the locking cylinder, wherein preferably the sleeve section has a recess which is designed such that, in a cross-section perpendicular to the axis of rotation of a cylinder core of the locking cylinder, a circular segment is cut out, the chord of which is longer than the width of a web section of the locking cylinder. The sleeve-like arrangement of the rotary bolt around the locking cylinder makes it possible to realize a particularly compact locking mechanism. The greater width of the recess compared to the web section ensures that, even in this embodiment, the rotary bolt is rotatable and rotatable.
[0015] Preferably, the rotary latch comprises a cantilever section which includes a region that forms a counterpart to a locking element of the locking bolt. By means of the cantilever section, the locking bolt can be secured in the lockable locking position. For this purpose, it has a region that is adapted to the shape of the locking element of the locking bolt.
[0016] According to a further embodiment of the invention, a receptacle is provided in which the locking bolt is movably guided, and on which a housing of a locking cylinder is held in a rotationally fixed manner, wherein the holding is effected in particular by a web section of the housing engaging in a corresponding recess of the receptacle.
[0017] Preferably, the locking bolt comprises a blocking means which is used to lock or release the locking bolt with the The locking mechanism interacts with the locking element, the blocking element comprising a clamping section of the locking bolt provided at an end of the locking bolt facing the locking mechanism, which, in the lockable locked position, can be engaged by the locking mechanism, in particular a rotary bolt. This allows the design of existing locking bolts to be modified only slightly, as only an end section of the existing locking bolts needs to be adapted. It is particularly advantageous if an annular groove is provided to form the engagement. This allows the modification to be especially minimal.
[0018] According to a further embodiment of the invention, an optical marking is provided at an end of the locking bolt visible in the release position and / or in the unsecured locking position, or at a part of the window / door security device that is axially movable with the locking bolt. This has the advantage that it is particularly easy to recognize when the locking bolt is not in the lockable locking position, but in the release position and / or in the unsecured locking position.
[0019] According to a further embodiment of the invention, means in the form of a push-button ballpoint pen mechanism are provided, by means of which the locking bolt can be moved between its positions. In principle, any push-button ballpoint pen mechanism can be used. The operation of such a mechanism is simple and safe, and its function is immediately understandable to the user.
[0020] Non-limiting embodiments of the invention are shown in the drawing and are described below.
[0021] They show, each in schematic representation,
[0022] Fig. 1 a window / door security device according to the invention,
[0023] Fig. 2a–Fig. 2c shows the window / door lock of Fig. 1, in which some elements have been removed, with a locking bolt in a release position, an unsecured locking position or a lockable locking position, and
[0024] Fig. 3a, Fig. 3b show all essential elements of the window / door security of Fig. 1, disassembled, in different views.
[0025] The window / door lock shown in Fig. 1 essentially consists of a decorative sash cover 11 and a decorative frame cover 13. The window / door lock can be attached to a sash via an optional sash support 15 and to a frame via an optional frame support 17. The window / door lock can be provided, for example, on the locking side or on the underside of the sash. Furthermore, a locking cylinder 19 is visible, into which a key 21 is inserted, by which the locking cylinder 19 can be operated.
[0026] In Fig. 2, the sash cover, the frame cover, and a frame strip, which will be explained in more detail below, have been removed. This reveals a sash plate 23 covered by the sash cover, which is equipped with screw holes 25 and 27 for attachment to a sash. These screw holes also penetrate the sash base 15. The screw holes 27 are designed as elongated holes to compensate for tolerances. The sash plate 23 is a folded metal sheet, the folded area of which is designed as a passage 29 through which a locking bolt 31 can be passed. When a window / door lock is attached to the underside of the sash, the locking bolt 31 acts as a tilting axis for the sash, about which the sash plate 23 can be rotated.
[0027] The locking bolt 31 can be moved between three positions by axial actuation, namely between the release position shown in Fig. 2a, in which the locking bolt 31 is fully extended from the opening 29, the unsecured locking position shown in Fig. 2b, in which the locking bolt has moved axially against the release direction I and fully extends through the opening 29, and the lockable locking position shown in Fig. 2c, in which the locking bolt 31 has moved axially even beyond the unsecured locking position shown in Fig. 2b in order to interact with a locking mechanism 33 of the window / door security arranged in axial extension of the locking bolt 31.
[0028] The locking mechanism 33, particularly visible in Fig. 3, comprises a rotatable rotary latch 35, which in Fig. 2 is in a position securing the locking bolt 31, so that the locking bolt 31 is axially secured in the position shown in Fig. 2c. For this purpose, the rotary latch 35 interacts with the end of the locking bolt 31 facing the rotary latch 35 such that a projection 37 of the rotary latch 35 engages behind a clamping section 39 of the locking bolt 31 and engages in an annular groove 41 to secure the locking bolt 31 in the lockable locking position. For this purpose, the projection 37 of the rotary latch 35 has a region which forms a counterpart to the annular groove 41 of the locking bolt 31.
[0029] The rotary latch 35 of the locking mechanism 33 is biased into the position shown in Fig. 2, which secures the locking bolt 31. For this purpose, a curved spring 43 is provided, which, under bias, is supported on one side by a projecting pin 45 of the rotary latch 35 and on the other side by a web section 47 of the locking cylinder 19. This creates an automatic function. When the locking bolt 31 is moved axially from the release position beyond the unsecured locking position or from the unsecured locking position towards the locking mechanism 33, the cantilever section 37 of the rotary latch 35, through a rotational movement of the rotary latch 35 against the bias of the spring 43, moves laterally away from the locking bolt 31, in order to then move into the position shown in Fig.The locking bolt 31 snaps back into the lockable position shown in Figure 2 as soon as the clamp section 39 of the locking bolt 31 has completely passed the area of the cantilever section 37 of the rotary bolt 35, which is designed as a counterpart to the annular groove 41. The cantilever section 37 then engages in the annular groove 41 to secure the locking bolt 31 in the lockable locking position (Fig. 2c).
[0030] The rotary bolt 35 comprises, in addition to the cantilever section 37, a sleeve section 49 which partially surrounds the locking cylinder 19. The sleeve section 49 has a recess 51 extending over the entire height of the sleeve section 49, the width of which is greater than the width of the web section 47 of the locking cylinder 19, so that the rotary bolt 35 is rotatable or rotatable.
[0031] For rotary actuation of the rotary latch 35, a contact section 53 of the rotary latch is provided on the underside of the rotary latch 35, which includes a recess that is flattened on one side and otherwise circular. A correspondingly shaped cylindrical segment-shaped end section 55 of a rotatable cylindrical core 57 engages in this recess of the contact section 53, forming a positive locking connection. The locking cylinder 19 is inserted. Consequently, the rotary bolt 35 is rotatably connected to the locking cylinder 19 via the end section 55 of the cylinder core 57, so that when the locking cylinder 19 is rotated by the key 21, the rotary bolt 35 is rotated against the preload of the spring 43 in such a way that the locking bolt 31 is released. Due to an axial spring load from a compression spring 59, which acts on the locking bolt 31 via a collar 61 in the release direction I, the locking bolt 31 moves from the lockable locking position either into the unlocked locking position or back into the release position, as explained in more detail below.
[0032] The locking bolt 31 is guided so as to be movable in a frame strip 63. In the frame strip 63, a housing 65 of the locking cylinder 19, comprising the web section 47, is also held in a rotationally fixed manner, the holding being effected by the web section 47 of the housing 65 of the locking cylinder 19 engaging in a corresponding recess in the frame strip 63.
[0033] On the side of the locking bolt 31 facing away from the locking mechanism 33, a red cap 69 is provided, which, in the release position and the unsecured locking position, protrudes beyond the frame cover 13 from the window / door lock, as can be seen in Figs. 2a and 2b, to indicate that the window / door lock is not in the lockable position. In the lockable position (Fig. 2c), the cap 69 is flush with the frame cover 13 and thus remains at least substantially concealed.
[0034] In addition, a push-button ballpoint pen mechanism is provided, by means of which the locking bolt 31 can be moved between its positions, in particular between the release position and the unsecured locking position. Besides the compression spring 59, the push-button ballpoint pen mechanism comprises a pressure sleeve 71, a rotary sleeve 73, and a guide sleeve 75, which cooperate in a known manner to implement the push-button ballpoint pen mechanism. The end of the locking bolt 31 facing away from the locking mechanism 33 engages in the rotary sleeve 73, which is mounted within the pressure sleeve 71. In this respect, reference is made to the aforementioned application DE 101 01 767 A1, the contents of which are hereby incorporated into this application. The cap 69 mentioned above is placed on the pressure sleeve 71.
[0035] The locking bolt 31 can be moved axially from either the unsecured locking position or the release position beyond the unsecured locking position into the lockable locking position, where it is secured by the locking mechanism 33. When the locking mechanism 33 is released, the locking bolt 31 retracts either to the unsecured locking position or to the release position, depending on whether the locking bolt 31 was previously in the release position or the unsecured locking position, due to the ballpoint pen mechanism. The locking bolt 31 can also simply move between the release position and the unsecured locking position without being moved into the lockable locking position in between.
[0036] Finally, the window / door security device comprises a protective hood 79, which covers the area of the ballpoint pen mechanism facing away from a frame, a cover 81, which is arranged in the area of the locking cylinder 19 between the frame strip 63 and the frame base 17, and a leaf spring 67, which performs the function described in connection with the aforementioned application DE 101 01767 A1.
[0037] Overall, the window / door lock according to the invention provides a particularly advantageous lock for a casement window or a tilt-and-turn window, which is on the one hand particularly secure and on the other hand enables convenient operation. 11 Wing hood 13 Frame hood 15 wing base 17 Frame support 19 Lock cylinder 21 Key 23 wing panel 25 screw feedthrough 27 screw feedthrough 29 implementation 31 Locking bolt 33 Safety mechanism 35 rotary latch 37 boom section 39 hinge section 41 Ring groove 43 Feather 45 Pen 47 Bridge section 49 mantle section 51 recess 53 Contact section 55 Final section 57 Cylinder core 59 Compression spring 61 Federal 63 frame molding 65 Housing 67 leaf spring 69 cap 71 Pressure sleeve 73 Rotary sleeve 75 Guide sleeve 79 protective cover 81 Lid I Trigger direction
Claims
[1] Window / door locking device for a casement or tilt-and-turn sash, in particular of an inward-opening window or door, comprising a locking bolt (31) which can be inserted into a recess (29) which can be attached to the sash in order to lock the sash, characterized in that the locking bolt (31) is axially movable between a release position, an unsecured locking position and a locking position which can be secured by means of a locking mechanism (33), wherein the locking bolt (31) can be moved from the release position beyond the unsecured locking position into the secureable locking position by means of an axial actuation. [2] Window / door lock according to claim 1, characterized in that the locking mechanism (33 ) is arranged in axial extension of the locking bolt (31 ). [3] Window / door locking device according to at least one of the preceding claims, characterized in that the locking bolt (31 ) can be automatically secured by axial actuation beyond the unsecured locking position. [4] Window / door lock according to claim 3, characterized in that, for automatic locking of the locking bolt (31 ), the locking mechanism (33 ) or a part (35 ) thereof is pre-tensioned into a position securing the locking bolt (31 ). [5] Window / door security device according to at least one of the preceding claims, characterized in that the security mechanism (33 ) comprises a rotatable rotary latch (35) which cooperates with a blocking means (39 , 41 ) of the locking bolt (31 ) to lock or release the locking bolt (31 ), and a locking cylinder (19 ) which cooperates with the rotary latch (35 ). [6] Window / door lock according to claim 5, characterized in that the locking mechanism (33 ) has a spring means (43 ) which is supported on the one hand on the rotary latch (35 ) and on the other hand on a housing (65 ) of the locking cylinder (19 ). [7] Window / door security device according to at least one of claims 5 or 6, characterized in that the locking cylinder (19 ) comprises a drive device (55 ) via which the rotary bolt (35 ) is rotatably connected to the locking cylinder (19 ). [8] Window / door security device according to claim 7, characterized in that the drive device (55 ) comprises an end section of a cylinder core (57 ) of the locking cylinder (19 ), wherein the end section has a shape that deviates from a rotationally symmetrical shape and engages in a corresponding recess provided in a contact section (53 ) of the rotary latch (35 ) in a form-fitting manner. [9] Window / door locking device according to at least one of claims 5 to 8, characterized in that the rotary bolt (35 ) comprises a sheath section (49 ) which at least partially surrounds the locking cylinder (19 ) and which has a recess (51 ) which is designed such that in a cross-section viewed perpendicular to the longitudinal axis of the locking cylinder (19 ) a circular segment is recessed, the chord of which is longer than the width of a web section (47 ) of the locking cylinder (19 ). [10] Window / door locking device according to at least one of claims 5 to 9, characterized in that the rotary latch (35 ) comprises a cantilever section (37 ) which can be brought into locking engagement with the blocking means (39 , 41 ) of the locking bolt (31 ). [11] Window / door security device according to at least one of claims 5 to 10, characterized in that a receptacle (63 ) is provided in which the locking bolt (31 ) is movably guided, and on which a housing (65 ) of the locking cylinder (19 ) is held in a rotationally fixed manner, wherein in particular a web section (47 ) of the housing (65 ) engages in a corresponding recess of the receptacle (63) in a form-fitting manner. [12] Window / door lock according to at least one of the preceding claims, characterized in that the locking bolt (31) comprises a blocking means (39, 41) which cooperates with the locking mechanism (33) to lock or release the locking bolt (31), wherein the blocking means (39, 41) comprises a clamping section (39) of the locking bolt (31) provided at an end of the locking bolt (31) facing the locking mechanism (33), which in the lockable locking position, the locking mechanism (33) or a part thereof can be accessed from behind. [13] Window / door locking device according to claim 12, characterized in that an annular groove (41 ) is provided to form the interlocking. [14] Window / door security device according to at least one of the preceding claims, characterized in that an optical marking (69) is provided at an end of the locking bolt (31) visible in the release position and / or in the unsecured locking position or at a part (71) of the window / door security device which is axially movable with the locking bolt (31). [15] Window / door locking device according to at least one of the preceding claims, characterized in that the locking bolt (31 ) is pre-tensioned in the direction of the release position, wherein the locking bolt (31 ) can be locked in the unsecured locking position by retaining means (71 , 73 , 75 ) and can be secured in the lockable locking position by the locking mechanism (33 ). [16] Window / door lock according to at least one of the preceding claims, characterized in that means (59 , 71 , 73 , 75 ) are provided in the manner of a ballpoint pen mechanism, by means of which the locking bolt (31 ) is biased in the direction of the release position and can be locked in the unsecured locking position.