Bolt device and door or window assembly

Abstract

The invention relates to a locking device (10) for locking a displaceable leaf (116) to a frame (102) of a door or window arrangement (100), comprising a locking bolt (12), wherein the locking bolt (12) extends along a central longitudinal axis (16) and has a locking shaft (18) and a locking head (20), wherein the locking bolt (12) is guided with its locking shaft (18) in a channel (40) of a housing (14) extending along a housing axis (30) by means of a guide device (42) such that the locking bolt (12) is displaceable between a retracted position relative to the housing (14) and a position extended relative to the housing (14), such that the locking bolt (12) is rotatable in the retracted position and in the extended position between a first rotational position and a second rotational position,and that the locking bolt (12) is secured against displacement in the first rotational position, and rotation of the locking bolt (12) into the second rotational position releases displacement. A door or window arrangement (100) with such a locking device (10) is specified.

Description

[0001] The present invention relates to a locking device having the features of the preamble of claim 1. Furthermore, the invention relates to a door or window arrangement having the features of the independent claim.

[0002] Locking devices and door or window assemblies of the type mentioned above are known from the prior art. For example, in door or window assemblies such as lift-and-slide doors, locking devices in the form of locking bolts are used to secure a door or window sash to a frame in the closed position.

[0003] Such locking bolts are attached to a vertical frame member of the frame so that they face one end of the sash.

[0004] To achieve a closed position, the sash can be moved toward the vertical frame member, where the locking bolt can be engaged with a locking bolt receptacle on the sash. When the lift-and-slide sash is lowered into the closed position, the locking bolt and the locking bolt receptacle engage with each other. The sash is then locked relative to the frame. Such locking bolts are available from the applicant, for example, in the form of the GU locking bolt 6-22648 or GU locking bolt 9-26072 models. Such locking bolts have proven themselves on the market and allow secure locking of the sash relative to the frame in the closed position.

[0005] The invention is based on the object of enabling secure locking in the closed position and secure gap ventilation in door or window arrangements.

[0006] The invention solves this problem by a locking device having the features of claim 1.

[0007] The locking device is designed and / or intended for locking a sliding leaf to a frame of a door or window assembly. The locking device initially comprises a locking bolt.

[0008] The locking bolt extends along a central longitudinal axis and has a locking shaft and a locking head. The locking shaft can be tapered relative to the locking head. The locking shaft and locking head are connected to each other, preferably in one piece. The locking shaft can have a circular cross-section, at least in part axially.

[0009] The locking bolt is guided with its locking shaft in a channel of a housing extending along a housing axis by means of a guide device. The locking bolt is guided in such a way that the locking bolt can be moved between a retracted position relative to the housing (locking position) and an extended position relative to the housing (ventilation position).

[0010] In the retracted position, preferably only the locking head and, if at all, only a comparatively small axial section of the locking shaft protrude from the housing. In the extended position, the locking head and a (larger) axial section of the locking shaft protrude from the housing. The retracted position and the extended position can differ along the central longitudinal axis by a distance of 20-30 mm, preferably 25 mm (adjustment range of 20-30 mm, preferably 20 mm).

[0011] The locking bolt is further guided in such a way that the locking bolt can be rotated between a first rotational position and a second rotational position in the retracted and extended positions. In particular, the guide device provides that the locking bolt is rotated by rotating the locking shaft or locking bolt around the central longitudinal axis. The first rotational positions can be spaced apart by a defined angle, for example, an angle of 90°.

[0012] The locking bolt is also guided in such a way that the locking bolt is secured against displacement in the first rotational position, and turning the locking bolt to the second rotational position releases it. In other words, the locking bolt is not secured against displacement in the second rotational position and can therefore be moved along its central longitudinal axis relative to the housing.

[0013] The proposed locking device has the advantage that, when the locking bolt is in a retracted position relative to the housing, the locking device, similar to a conventional locking bolt, can form a (possibly additional) locking point. This contributes to a high level of security in the closed position. When the locking bolt is in an extended position relative to the housing, the locking device can be used as a night ventilation device or night ventilation locking bolt. This allows for a secured night ventilation position in which a sash is opened by only a few centimeters relative to the frame, starting from the closed position, and is also secured against displacement.

[0014] The locking device is particularly configured such that an operator can rotate it between the first rotational position and the second rotational position, as well as move it between the retracted position and the extended position. This allows the operator to manually grasp the locking bolt at the locking head (contact surfaces) and rotate and / or move it as desired.

[0015] In a preferred embodiment, the guide device can have at least one, i.e., one or more, guide tracks and at least one, i.e., one or more, guide projections engaging in the guide track. This allows for reliable and precise guidance of the locking bolt relative to the housing.

[0016] In principle, it is conceivable that the one or more guide tracks are formed on the locking shaft and the guide projections are formed or fastened to an inner wall of the channel. Preferably, the one or more guide tracks are formed on an inner wall of the channel of the housing, and the one or more guide projections are arranged on the locking shaft in a rotationally fixed manner. This contributes to reliable and stable guidance, whereby weakening of the locking shaft can be kept to a minimum. The at least one guide projection can be formed directly on the locking shaft or on a separate element that is (rotationally fixedly) coupled to the locking shaft.

[0017] Specifically, two guide tracks can be formed on the inner wall of the housing channel, in particular on two opposing sections of the inner wall. Two or more guide projections can be present on the locking shaft, which protrude from the locking shaft in opposite directions, in particular diametrically opposite.

[0018] Advantageously, the one or more guide tracks can each have a first track section (locking bolt retracted and rotatable or rotated between the first rotational position and the second rotational position), a second track section (locking bolt extended and rotatable or rotated between the first rotational position and the second rotational position), and an intermediate track section (locking bolt in the second rotational position and displaced between the retracted position and the extended position) that connects the first track section and the second track section. The intermediate track section extends along or parallel to the housing axis. The first track section and the second track section each extend away from the intermediate track section and are oriented transversely to the intermediate track section. Thus, the possible actuating movements of the locking bolt are predetermined by the guide track(s).This contributes to precise and reliable guidance of the locking bolt. As already indicated above, two guideways with corresponding sections opposite each other can be formed on the inner wall of the housing channel (guideways on two opposite sections of the inner wall).

[0019] Within the scope of a preferred embodiment, the first track section and the second track section can each be coordinated with the one or more guide projections in such a way that, when the locking bolt is in the first rotational position, the guide projection is secured against rotation in the first track section or on the second track section. As a result, the locking bolt is secured against unwanted rotation from the first rotational position in the retracted or extended position. This contributes to reliable locking, as the locking head is aligned in a defined position relative to a sash-side locking receptacle or locking head receptacle. "Secured against rotation" means that rotation of the locking bolt from the first rotational position toward the second rotational position is only possible when a torque threshold is exceeded.For this purpose, the first track section and the second track section can each be reduced in cross-section, so that the guide projection(s) in the track section clamp when the locking bolt is in the first rotational position or have to pass the cross-sectional taper ("obstacle") when the locking bolt is rotated from the first rotational position to the second rotational position.

[0020] Specifically, the guide projections can be formed on a (separate) control part, which is connected in a rotationally fixed and longitudinally displaceable manner to a tapered section of the locking shaft. This facilitates manufacture and assembly compared to a one-piece design of the locking shaft and guide projections. The control part can be disc-shaped and have a passage for attachment to the tapered section of the locking shaft. The tapered section of the locking shaft and the passage in the control part can be adapted to one another in terms of profile. The connection between the tapered section and the passage in the control part can be designed as a shaft-hub connection, e.g. with a circular or elliptical cross-section with a tongue and groove or with an n-sided cross-section with n ≥ 3, preferably a square or hexagonal cross-section. The guide projections can protrude from the control part in two opposite directions.

[0021] Advantageously, the control part can be formed from two separate segments (two-part control part) that are spaced apart from one another and enclose an elastic spring element between them, so that the segments can be displaced relative to one another by deforming the spring element (axial deformation or deformation along the central longitudinal axis). This can be used to secure the segments against rotation from the first rotational position. The elastic spring element can be deformed between an uncompressed or only partially compressed position and a (further, possibly fully) compressed position. Accordingly, the segments of the control part are in a position distant from one another (spring element only partially compressed; prevailing preload) or a position closer to one another (spring element (further, possibly fully) compressed).The spring element can be disc-shaped and have a passage for attachment to the tapered section of the locking shaft. The passage of the spring element can be adapted to the profile of the tapered section of the locking shaft, similar to the passage of the control part. The spring element can, similar to the control part, have guide projections that protrude from the spring element in two opposite directions. This allows the spring element to move with the segments of the control part, thus preventing wear due to relative movement between the segments and the spring element. The spring element can be designed as an elastomer spring. This allows for a smaller installation space compared to a compression spring or coil spring.

[0022] Specifically, the first track section and / or the second track section can each have a slope at which the cross-section of the respective track section tapers, so that when the locking bolt is rotated from the first rotational position to the second rotational position, the segments of the control part are displaced towards one another (as a result of contact with the guide projections and with compression of the spring element). Thus, by rotating the locking bolt from the first rotational position to the second rotational position, the spring element can be compressed, with the axial movement of the control part (segments of the control part move towards one another) being initiated by the slope in the first track section or in the second track section of the housing. The wall of the housing can be recessed on the first track section and / or the second track section or have a recess that connects the channel to the environment.The slope can be formed in the recess. The recess allows a view or visual inspection of the first track section or the second track section, or a control element with an elastomer spring arranged therein.

[0023] In a preferred embodiment, a chamfer can be formed on each of the segments of the control part, at which the thickness of the respective guide projection tapers along the central longitudinal axis, measured in the circumferential direction, so that when the locking bolt is rotated from the second rotational position to the first rotational position, the segments of the control part are displaced toward one another. Thus, by rotating the locking bolt from the second rotational position to the first rotational position, the spring element can be compressed, with the axial movement of the control part (segments of the control part moving toward one another) being initiated by the chamfer on the control part.

[0024] Specifically, the locking head can have a larger cross-section relative to the locking shaft. This contributes to stable dimensions and reliable locking. Grooves for engagement with a locking receptacle or locking head receptacle can be formed in the locking head on two opposite sides. This allows locking using proven means. The locking head can have lateral surface sections, particularly on opposite sides, for gripping the locking head with the fingers of an operator. Thus, the locking head can serve as an actuating element of the locking device by an operator, as explained above.

[0025] The control part and the spring element can expediently be secured by means of a centering or rivet washer on the tapered section of the locking shaft. This provides reliable protection against loss. The centering or rivet washer can be arranged and fastened on the tapered section of the locking shaft or on an optional end section of the locking shaft that is further tapered compared to the tapered section. The centering or rivet washer can be adapted in its outer dimensions, in particular its outer diameter, to the inner dimensions, in particular the inner diameter, of the channel of the housing. This allows the locking bolt to be stabilized, for example, even in the extended position (play of the locking bolt in the channel is stabilized by the centering or rivet washer).

[0026] Advantageously, one or more pins can be incorporated into the housing, which protrude into the channel of the housing and form a displacement lock. This limits the displacement of the locking shaft (towards the retracted position) and also provides a loss protection for the components arranged in the channel of the housing. Specifically, the pin(s) can be arranged at the end of the housing facing away from the locking head (second end) perpendicular to the housing axis, for example, along the housing axis behind the centering or rivet washer.

[0027] Alternatively or additionally, a shoulder or collar can be formed at the transition from the locking head to the (compared to the tapered) locking shaft. The shoulder or collar can be arranged on the locking bolt in such a way that, when the locking bolt is in the inserted position, it rests against the housing at its end. This creates an axial stop that limits the insertion of the locking bolt into the housing or into the housing channel.

[0028] The housing can expediently have mounting tabs projecting transversely to the housing axis for attaching the locking device to a door assembly. This allows for simple and stable attachment of the housing to a door assembly, e.g., a frame of a door assembly. A preferably countersunk through-hole for fastening by means of screws can be formed in each of the mounting tabs. The mounting tabs are formed at the end of the housing facing the locking head (first end). The housing and the mounting tabs can be formed integrally with one another.

[0029] In a preferred embodiment, the locking shaft can have a receiving channel extending along or parallel to the central longitudinal axis, in which a hardened pin is preferably rotatably received. The hardened pin increases the stability of the locking bolt and makes it more difficult to saw through the locking bolt (increased protection against tampering or burglary). Preferably, the hardened pin is rotatably received in the receiving channel (clearance fit between the pin and the receiving channel). The receiving channel can be designed as a bore.

[0030] The problem mentioned at the outset is also solved by a door or window arrangement having the features of the independent claim.

[0031] The door or window arrangement comprises a (stationary) frame, a wing which is displaceable relative to the frame between an open position and a closed position along a displacement direction, and a locking device having one or more of the aspects described above.

[0032] With regard to the advantages that can be achieved, reference is made to the relevant comments on the locking device.

[0033] Advantageously, the locking device can be arranged on the frame of the door or window arrangement and the locking head of the locking device can cooperate or be engageable with a locking head receptacle arranged on the wing, wherein the locking head and the locking head receptacle face each other.

[0034] In another advantageous manner, the locking device can be arranged on the sash of the door or window arrangement, and the locking head of the locking device can cooperate with or be engageable with a locking head receptacle arranged on the frame, wherein the locking head and the locking head receptacle face each other. In this case, the locking device is fixed to a locking pin-carrying pull rod of the sash, which is known to those skilled in the art, and is moved with this rod (like any other locking pin, if applicable) by actuating a handle coupled to the pull rod. In order for a vertical sash profile to accommodate the locking device in its full longitudinal extent, the vertical sash profile must have a sufficient minimum extension in the direction and amount of the longitudinal extent of the locking device.

[0035] "Facing each other" means that the locking head receiver can be engaged or coupled with the locking head along the sliding direction, depending on the position of the sash relative to the frame.

[0036] The locking device and the locking head receptacle are each arranged on a front side of the frame or sash, respectively, which are spaced apart at different distances depending on the sash position when the sash is moved along the direction of travel. The locking device can be arranged on a side of a vertical frame member facing the sash. The locking head receptacle can be arranged on a side of a vertical sash member facing the frame.

[0037] The sash can be a sliding sash or a lifting / sliding sash.

[0038] An elastomer buffer can advantageously be arranged on a sash stile, particularly on a wall of the sash profile, behind the locking head receptacle. This prevents damage to the sash when the sash is moved toward the closed position due to the locking head striking the sash profile, especially when the locking bolt is in the extended position. The elastomer buffer absorbs excess kinetic energy. Specifically, the elastomer buffer can be clamped into the cover rail in the sash from behind.

[0039] In a preferred embodiment, the thickness of the elastomer buffer along the direction of travel can be designed or dimensioned such that when the locking head strikes the elastomer buffer, the alignment of the locking head and the locking head receptacle match each other such that the locking head can be locked to the locking head receptacle. This facilitates alignment of the locking head and the locking head receptacle, particularly when the locking bolt is in the extended position. The elastomer buffer can thus serve as a mechanical stop. Specifically, the elastomer buffer can be clamped from behind into the cover rail in the sash. When the locking bolt is in contact with the buffer, the position of the sash relative to the locking bolt matches for locking (mechanical stop).

[0040] In a suitable manner, one, two, or more conventional (non-adjustable) locking bolts can be arranged on the frame, in addition to the locking device. These bolts can be engaged with additional (sash-side) locking head receptacles when the sash is in the closed position relative to the frame. When the locking bolt is in the retracted position, the locking device can serve as a locking point like conventional locking bolts. When the locking bolt is in the extended position, the locking device allows for secure gap ventilation.

[0041] The measures discussed in connection with the locking device and / or those explained below can be used to further design the door or window arrangement.

[0042] The invention is explained in more detail below with reference to the figures, in which identical or functionally equivalent elements are provided with identical reference numerals, if necessary, but only once. They show: Fig.1 shows an embodiment of the locking device in a perspective exploded view; Fig.2a-c shows the locking device from Fig.1 , with the locking bolt in the retracted position and first rotation position ( Figure 2a ), in partially extended position and second rotation position ( Figure 2b and in extended position and first rotation position ( Figure 2c ) is located; Fig.3a,bthe locking device from Fig.1 each in a sectional view and a side view, with the locking bolt in the retracted position ( Figure 3a ) and in extended position ( Figure 3b ) is located; Fig.4a-fthe locking device from Fig.1each in a plan view and an enlarged partial view, with the locking bolt in different positions and rotational positions; Fig.5 a door or window arrangement with a locking device in a schematic front view; Fig.6 the door or window arrangement from Figure 5 in a sectional view along axis II - II, with the locking bolt in the retracted position and in the first rotational position and the sash in the closed position relative to the frame; Fig.7 the door or window assembly from Figure 5 in a sectional view along axis II - II, with the locking bolt in the extended position and in the first rotational position and the sash in the gap ventilation position relative to the frame; and Fig.8 the door or window arrangement from Figure 5in different sectional views, with the locking bolt in the extended position and in the first turning position and the sash in the night ventilation position relative to the frame.

[0043] Figure 1 shows a perspective exploded view of a locking device, designated overall by reference numeral 10. The locking device 10 is configured and / or intended for locking a sliding sash 116 to a frame 102 of a door or window assembly 100. The locking device 10 has a locking bolt 12 and a housing 14.

[0044] The locking bolt 12 extends along a central longitudinal axis 16 and has a locking shaft 18 and a locking head 20. In the example, the locking shaft 18 is tapered relative to the locking head 20 and is integrally connected to the locking head 20.

[0045] In this case, grooves 22 are formed on the locking head 20 on two opposite sides for engagement with a locking receptacle or locking head receptacle. Lateral surface sections 24 are provided on the locking head 20 on two opposite sides for gripping the locking head 20 with the fingers of an operator. Thus, the locking head 20 can serve as an actuating element of the locking device 10, as explained above.

[0046] The locking shaft 18 has a partially circular cross-section axially (main section 18'), in which, in the example, recesses 26 are formed on opposite sides. The locking shaft 18 also has a section 18'' that is tapered compared to the main section 18' and has a circular or elliptical cross-section with a tongue and groove or with an n-sided cross-section with n ≥ 3, e.g., a square or hexagonal section. In the example, the locking shaft 18 also has an end section 18‴ that is again tapered compared to the tapered section 18‴. The tapered end section 18‴ has a circular cross-section.

[0047] The housing 14 extends along a housing axis 30 and has a first end 32 facing the locking head 20 and a second end 34 facing away from the locking head 20. The housing 14 has fastening tabs 36 projecting transversely to the housing axis 30 for fastening the locking device 10 to a door assembly 100. A countersunk through hole 37 for fastening by means of screws is formed in each of the fastening tabs 36.

[0048] Optionally, the locking shaft 18 can have a receiving channel 38 extending along or parallel to the central longitudinal axis 16, in which a hardened pin 39 is rotatably received (clearance fit between pin 39 and receiving channel 38; cf. Fig.3a and 3b ). The receiving channel 38 can be designed as a bore.

[0049] The housing 14 has a channel 40 extending through the housing 14 along the housing axis 30. The locking bolt 12 is guided with its locking shaft 18 in the channel 40 by means of a guide device 42, which will be explained below. In the example, the guide device 42 has two guide tracks 44 and a plurality of guide projections 50 engaging in the guide tracks 44 (see FIG. Fig.2c and 3b ).

[0050] The guide tracks 44 are formed on an inner wall of the channel 40 of the housing 14, specifically on two opposing sections of the inner wall. The guide tracks 44 each have a first track section 45, a second track section 46, and an intermediate track section 47 that connects the first track section 45 and the second track section 46 (see FIG. Fig.2c and 3b). The intermediate track section 47 extends along or parallel to the housing axis 30. The first track section 45 and the second track section 46 each extend away from the intermediate track section 47 and are oriented transversely to the intermediate track section 47. Specifically, the first track section 45 and the second track section 46 run circumferentially along the inner wall of the channel 40. In the example, the housing 14 has a recess 48 on each of the first track section 45 and the second track section 46.

[0051] The guide projections 50 are formed on a control part 52, which in the example is formed from two separate segments 53, 54 (two-part control part 52; cf. Fig.1 ). The segments 53, 54 are spaced apart from each other and enclose an elastic spring element 56 between them.

[0052] The control part 52 and its segments 53, 54 are each disc-shaped and each have a passage 58 for attachment to the tapered section 18" of the locking shaft 18. The passage 58 is adapted in cross-section to the tapered section 18". The guide projections 50 protrude from the segments 53, 54 in two opposite directions.

[0053] In the example, the spring element 56 is disc-shaped and has a passage 60 for attachment to the tapered section 18" of the locking shaft 18. The passage 60 of the spring element 56 is, analogous to the passage 58, adapted to the cross-section of the tapered section 18" of the locking shaft 18. The spring element 56 optionally has, analogous to the control part 52, guide projections 62 that protrude from the spring element 56 in two opposite directions. The elastic spring element 56 is deformable between an uncompressed position and a compressed position. In this case, the spring element 56 is designed as an elastomer spring.

[0054] In the assembled state, the segments 53, 54 and the spring element 56 (due to the cross-sectional adaptation of the passages 58, 60 to the tapered section 18'') are connected in a rotationally fixed and longitudinally displaceable manner to the tapered section 18'' of the locking shaft 18 (cf. Fig.1 , 2a , 3a, 3b ).

[0055] A centering or rivet washer 64 is also provided, which has a passage 65. In the assembled state, the centering and rivet washer 64 is arranged and secured on the tapered end section 18‴. The segments 53, 54 and the spring element 56 are thereby secured on the tapered section 18''. Furthermore, the centering or rivet washer 64 is adapted in its outer diameter to the inner diameter of the channel 40, thus resulting in a centering effect for the locking bolt 12.

[0056] In the example, two pins 66 are introduced into the housing 14, which project into the channel 40 of the housing 14 and form a displacement lock (cf. Fig. 2b and 2c). Alternatively or additionally, a shoulder or collar 25 can be formed at the transition from the locking head 20 to the locking shaft 18. The shoulder or collar 25 is arranged on the locking bolt 12 in such a way that, when the locking bolt 12 is in the inserted position, it rests against the housing 14 at its end face (axial stop).

[0057] The first track section 45 and the second track section 46 each have a slope 68 at which the cross section of the respective track section 45, 46 tapers (cf. Fig.4a ). On the segments 53, 54 of the control part 52, a chamfer 70 is formed in each case, at which the thickness of the respective guide projection 50 tapers along the central longitudinal axis 16 measured in the circumferential direction (cf. Fig.1 or Fig.4e ). The chamfer 70 is arranged and / or formed on the segments 53, 54 in such a way that the chamfer 70 faces away from the spring element 56.

[0058] As already indicated above, the locking bolt 12 with its locking shaft 18 is guided in the channel 40 of the housing 14 by means of the guide device 42, namely by the guide projections 50, 62 running in the guide tracks 44. The locking bolt 12 is guided in such a way that the locking bolt 12 can move between a retracted position relative to the housing 14 (locking position; cf. Fig.2a , 3a , 4a ) and a position extended relative to the housing 14 (ventilation position; see Fig.2c , 3b , 4d-f ) is displaceable. In the retracted position, only the locking head 20 and, if at all, only a comparatively small axial section of the locking shaft 18 protrude from the housing 14. In the extended position, the locking head 18 and a (larger) axial section of the locking shaft 18 protrude from the housing 14.

[0059] The locking bolt 12 is further guided in such a way that the locking bolt 12 can be rotated in the retracted position and in the extended position between a first rotational position and a second rotational position (cf. Fig.4a-4c for the retracted position and Fig.4d-4f for the extended position). The locking bolt 12 is rotated in the channel 40 by rotating the locking shaft 18 or locking bolt 12 about the central longitudinal axis 16 or the housing axis 30.

[0060] The locking bolt 18 is also guided in such a way that the locking bolt 18 is secured against displacement in the first rotational position (cf. Fig.2a, 2c , 4a and 4f ) and turning the locking bolt 18 into the second rotational position allows it to be moved (cf. Fig.2b , 4c and 4f). In other words, the locking bolt 18 is not secured against displacement in the second rotational position and is thus displaceable along its central longitudinal axis 16 relative to the housing 14. In the example, the first rotational position and the second rotational position are separated by an angle of 90°.

[0061] The first track section 45 and the second track section 46 are each matched to the guide projections 50, 62 such that, when the locking bolt 12 is in the first rotational position, the guide projections 50, 62 are secured against rotation in the first track section 45 or on the second track section 46. "Secured against rotation" means that rotation of the locking bolt 12 from the first rotational position toward the second rotational position is only possible when a torque threshold is exceeded.

[0062] For this purpose, the first track section 45 and the second track section 46 each have a bevel 68, at which the cross section of the respective track section 45, 46 tapers, so that when the locking bolt 12 is rotated from the first rotational position into the second rotational position, the segments 53, 54 of the control part 52 are displaced towards one another (as a result of contact with the guide projections 50, 62 and under compression of the spring element 56) (cf. Fig.4b ). Thus, by rotating the locking bolt 12 from the first rotational position to the second rotational position, the spring element 56 can be compressed, whereby the axial movement of the control part 52 (segments 53 54 of the control part 52 move towards one another) is initiated by the bevel 68 in the first track section 45 or in the second track section 46 of the housing 14.

[0063] Due to the chamfers 70 formed on the segments 53, 54 of the control part 52, the segments of the control part can be displaced towards one another when the locking bolt 12 is rotated from the second rotational position into the first rotational position (cf. Fig.4e ). Thus, by rotating the locking bolt 18 from the second rotational position to the first rotational position, the spring element 56 can be compressed, whereby the axial movement of the control part 52 (segments 53, 54 of the control part 52 move towards each other) is initiated by the chamfer 70 on the control part 52.

[0064] The Figures 4a to 4f , to which reference has already been made, show an adjustment of the locking device 10 or a transfer of the adjustable locking bolt 12 from the retracted position relative to the housing 14 (locking position) into the extended position relative to the housing 14 (gap ventilation position).

[0065] In Figure 4aThe locking bolt 12 is in the retracted position relative to the housing 14 and in the first rotational position. The spring element 56 is in a nearly uncompressed position (providing a preload), so that the segments 53, 54 are spaced apart from one another along the central longitudinal axis 16 and secured in the first track section 45. The locking bolt 12 is in the locking position.

[0066] In Figure 4bthe locking bolt 12 has already been rotated clockwise by an angle of approximately 45°. As a result of the rotation, the segment 53 of the control part 52 has come into contact with the bevel 68, which tapers the cross-section of the first track section 45 towards the intermediate track section 47. As a result, the segment 53 moves in the direction of the segment 54, whereby the spring element 56 is compressed. The axial movement of the segment 53 of the control part 52 is initiated by the bevel 68. As a result of the compression of the spring element 56, the guide projections 50, 62 can pass through the cross-section of the first track section 45, which is tapered by the bevel 68, in the direction of the intermediate track section 47. As long as the guide projections 50, 62 have not yet reached the intermediate track section 47, the locking bolt 12 is secured against displacement.

[0067] In Figure 4cThe locking bolt 12 has been rotated 90° clockwise and is now in the second rotational position. The guide projections 50, 62 are now located in the intermediate track section 47. This allows the locking bolt 12 to be moved along the channel 40 into the extended position. The guide projections 50, 62 move along the intermediate track section 47.

[0068] In Figure 4d The locking bolt 12 has been moved into the extended position relative to the housing 14. As can be seen by the recess 48 on the second track section 46, the segments 53, 54 and the spring element 56 are located along the housing axis 30 on the second track section 46.

[0069] In Figure 4eThe locking bolt 12 was rotated counterclockwise by an angle of approximately 45°. The guide projections 50, 62 have already penetrated the second track section 46. The chamfer 70 on the segment 54, which comes into contact with the edge of the second track section 46 or the recess 48 on the second track section, displaces the segment 54 toward the segment 53. In the process, the spring element 56 is compressed along the housing axis 30. The axial movement of the segment 54 of the control part 52 is initiated by the chamfer 70 on the control part.

[0070] In Figure 4fThe locking bolt 12 has been rotated back to the first rotational position. The guide projections 50, 62 have passed the bevel 68 and are thus located in the part of the second track section 46 with an expanded cross-section. The spring element 56 is released, and the segments 53, 54 of the control part 52 are again spaced apart from each other. The locking bolt 12 is now in the extended position and in the first rotational position. The locking bolt 12 is secured against rotation, as explained above. The locking bolt 12 is now in the ventilation position.

[0071] Figure 5 shows a schematic front view of a door or window arrangement, which is designated overall by the reference numeral 100.

[0072] The door or window assembly 100 includes a (stationary) frame 102, which includes an optional lower frame cross member 104, an upper frame cross member 106, and two vertical frame cross members 108, 110. The lower frame cross member 104 is optional and can be omitted if the door or window assembly 100 is designed to be barrier-free (ground-level threshold).

[0073] In the example, the door or window assembly 100 also includes a fixed panel 112, which is attached to the frame 102 and is immovable relative to the frame 102. The fixed panel 112 may include a glazed segment 114. Instead of the fixed panel 112, a movable wing may be provided (double-wing elements; not shown).

[0074] The door or window assembly 100 also includes a sash 116 that is displaceable relative to the frame 102 between an open position and a closed position along a displacement direction vr. The sash 116 includes a lower sash cross member 118, an upper sash cross member 120, and two vertical sash cross members 122, 124. The sash 116 may include a glazed segment 117. The sash 116 may be configured as a sliding sash or a lift-and-slide sash. Using the handle 126, the sash 116 can be displaced by an operator and locked or unlocked by pivoting the handle 126 on the frame 102 accordingly.

[0075] The door or window assembly 100 also includes a locking device 10, which has already been described above.

[0076] In the example, the locking device 10 is arranged on the frame 102 of the door or window assembly 100, and the locking head 20 interacts with a locking head receptacle 130 arranged on the sash 116. The locking device 10 is arranged on the side or end face of the vertical frame member 108 facing the sash 116. The locking head receptacle 130 is arranged on the end face of the vertical sash member 122 facing the vertical frame member 108. In addition to the locking device 10, further conventional locking bolts 132, 134 are provided, which interact with sash-side locking receptacles (not shown).

[0077] Figure 6 shows the door or window arrangement 100 in a sectional view according to axis II - II in Figure 5 , wherein the locking bolt 12 is in the retracted position and in the first rotational position and the sash 116 is in the closed position relative to the frame 102.

[0078] The locking head 20 is received in the locking head receptacle 130. Locking sections 136 of a locking fitting each engage in the grooves 22 on the locking head 20, so that the locking shaft 12 is locked to the sash 116. An elastomer buffer 142 is arranged rearwardly of the locking head receptacle 130 on the vertical sash spar 122, specifically on a wall 140 of its sash profile. The locking head 20 rests with its front end 21 against the elastomer buffer 142.

[0079] Figure 7 shows the door or window arrangement 100 in a sectional view according to axis II - II in Figure 5 , wherein the locking bolt 12 is in the extended position and in the first rotational position and the sash 116 is in the gap ventilation position relative to the frame 102.

[0080] Here, too, the locking head 20 is received in the locking head receptacle 130. The locking sections 136 of the locking fitting each engage the grooves 22 on the locking head 20, so that the locking shaft 12 is locked to the sash 116. The locking head 20 rests with its front end 21 against the elastomer buffer 142.

[0081] Figure 8 shows the door or window arrangement Figure 5 in different sectional views, wherein the locking bolt 12 is in the extended position and in the first rotational position and the sash 116 is in the gap ventilation position relative to the frame 102.

[0082] It can be clearly seen here that the thickness of the elastomer buffer 142 along the displacement direction is dimensioned such that when the locking head 20 strikes the elastomer buffer 142, the alignment of the locking head 20 and the locking head receptacle 130 coincides with one another such that the locking head 20 can be locked to the locking head receptacle 130. In other words, the locking head receptacle 130 and the locking head 20 are aligned with one another by means of the elastomer buffer 142 such that the locking sections 136 of the locking fitting and the grooves 22 in the locking head 20 are aligned with one another, so that the locking bolt 12 can be locked to the locking head receptacle 130.

Claims

1. Locking device (10) for locking a sliding wing (116) to a frame (102) of a door or window arrangement (100), with a locking bolt (12), characterized in thatthe locking bolt (12) extends along a central longitudinal axis (16) and has a locking shaft (18) and a locking head (20), wherein the locking bolt (12) is guided with its locking shaft (18) in a channel (40) of a housing (14) extending along a housing axis (30) by means of a guide device (42) such that the locking bolt (12) is displaceable between a retracted position relative to the housing (14) and a position extended relative to the housing (14), that the locking bolt (12) is rotatable in the retracted position and in the extended position between a first rotational position and a second rotational position, and that the locking bolt (12) is secured against displacement in the first rotational position and rotating the locking bolt (12) into the second rotational position enables displacement.

2. Locking device (10) according to claim 1, characterized in thatthe guide device (42) has one or more guide tracks (44) and one or more guide projections (50) engaging in the guide track (44).

3. Locking device (10) according to claim 2, characterized in that the guide tracks (44) are formed on an inner wall of the channel (40) and that the guide projections (50) are arranged in a rotationally fixed manner on the locking shaft (18).

4. Locking device (10) according to claim 2 or 3, characterized in thatthe guide tracks (44) each have a first track section (45), a second track section (46) spaced therefrom and an intermediate track section (47) which connects the first track section (45) and the second track section (46), wherein the intermediate track section (47) extends along or parallel to the housing axis (30) and wherein the first track section (45) and the second track section (46) each extend away from the intermediate track section (47) and are oriented transversely to the intermediate track section (47).

5. Locking device (10) according to claim 4, characterized in that the first track section (45) and the second track section (46) are each matched to one of the guide projections (50) in such a way that the guide projection (50) is secured in the first track section (45) or in the second track section (46) when the locking bolt (12) is in the first rotational position.

6. Locking device (10) according to one of claims 2 to 5, characterized in that the guide projections (50) are formed on a control part (52) which is connected in a rotationally fixed and longitudinally displaceable manner to a tapered section (18'') of the locking shaft (18).

7. Locking device (10) according to claim 6, characterized in that the control part (50) is formed from two separate segments (53, 54) which are spaced apart from one another and enclose an elastic spring element (56) between them, so that the segments (53, 54) can be displaced relative to one another by deformation of the spring element (56).

8. Locking device (10) according to claim 7, characterized in thatthe first track section (45) and / or the second track section (46) each have a slope (68) at which the cross section of the track section (45, 46) tapers, so that when the locking bolt (12) is rotated from the first rotational position into the second rotational position, the segments (53, 54) of the control part (52) are displaced towards one another.

9. Locking device (10) according to claim 7 or 8, characterized in that on the guide projections (50) of the segments (53, 54) of the control part (52) a chamfer (70) is formed in each case, at which the thickness of the guide projection (50) tapers along the central longitudinal axis (16), so that when the locking bolt (12) is rotated from the second rotational position into the first rotational position, the segments (53, 54) of the control part (52) are displaced towards one another.

10. Locking device (10) according to one of claims 7 to 9, characterized in thatthe control part (52) and the spring element (56) are secured by means of a centering or rivet washer (64) on the tapered section (18'') of the locking shaft (18).

11. Locking device (10) according to one of the preceding claims, characterized in that the locking head (20) has a cross-section which is enlarged in relation to the locking shaft (18) and / or that the locking head (20) has grooves (22) for engagement with a locking fitting and / or that one or more pins (66) are introduced into the housing (14) which form a displacement lock and / or that the housing (14) has fastening tabs (36) projecting transversely to the housing axis (30) for fastening the locking device (10) to a door or window arrangement (100).

12. Locking device (10) according to one of the preceding claims, characterized in thatthe locking shaft (18) has a receiving channel (38) extending along or parallel to the central longitudinal axis (16), in which a hardened pin (39) is received, preferably rotatably.

13. Door or window arrangement (100), comprising a frame (102) and a wing (116) displaceable relative to the frame (102) between an open position and a closed position along a displacement direction (vr), and a locking device (10) according to one of the preceding claims.

14. Door or window arrangement (100) according to claim 13, characterized in that the locking device (10) is arranged on the frame (102) and the locking head (20) can be brought into engagement with a locking head receptacle (130) arranged on the wing (116), wherein the locking head (20) and the locking head receptacle (130) face each other.

15. Door or window arrangement (100) according to claim 13, characterized in thatthe locking device (10) is arranged on the wing (116), and the locking head (20) can be brought into engagement with a locking head receptacle (130) arranged on the frame (102), wherein the locking head (20) and the locking head receptacle (130) face each other.

16. Door or window arrangement (100) according to claim 14, characterized in that an elastomer buffer (142) is arranged rearwardly of the locking head receptacle (130) on a wing spar (122), in particular on a wall (140) of the wing profile.

Images