Lock device for a double-wing door with a passive wing and an active wing and door opener device with a door with a fixed door frame

Abstract

Described is a bolt and / or latch removal device (1rf) for a passive wing lock device and / or a door opener device. To adapt the removal device (100) to the door's rebate clearance, the removal device (100) is length-adjustable via an adjusting screw (80). The removal device (100) consists of a U-shaped body (10) and a T-shaped body (20), which are connected in a length-adjustable manner via the adjusting screw (80). Coil springs (51, 51) clamp the U-shaped body (10) to the T-shaped body (20) with the nut (40) of the adjusting screw (80) interposed.

Description

[0001] The invention relates to a locking device for a double-leaf door with a passive leaf and an active leaf having the features of the preamble of patent claim 1, as well as to a door opener device with a locking device for a door with a stationary door frame and a single-leaf door leaf having the features of the preamble of the independent main claim 3.

[0002] Bolt and / or latch lifting devices are known in the prior art, namely used in passive wing locks on double-leaf doors or used in conjunction with electric door openers in the strike plate of single-leaf doors or used in conjunction with electric door openers in passive wing locks.

[0003] A passive sash lock with a deadbolt and latch lifter is described, for example, in EP 3 406 832 B1. The lifter can be adjusted to the door's rebate clearance by having a replacement component, which is available in different sizes to allow the replacement component of the appropriate size to be used for adjusting the rebate clearance.

[0004] Further designs of bolt and latch lifting devices used in passive wing locks are described in EP 2 703 586 B1.

[0005] An electric door opener with a bolt lifting device is described, for example, in EP 2 037 063 A1. Adjusting the lifting device to adapt to the door's rebate clearance is not described in the document.

[0006] TheDE 102 43 890 B3 describes a drive rod lock with a sliding bolt 1, a spring-loaded latch 2, an operating follower 3 with an operating lever 4 for the latch 2. The latch 2 is designed as a roller latch with a roller latch base body 8. A spring-loaded slide 10 is guided in the roller latch base body 8, which is adjustable via an adjusting screw 12. The adjusting screw 12 allows the slide 10 with the latch head 14 to be adjusted to a predetermined roller extension dimension toward the outside of the lock.

[0007] The DE 26 11 359 A1 describes a drive rod lock for a passive leaf of a double-leaf door with an upper drive rod 6 and a lower drive rod 7 as opposing drive rods, which are biased into the extended locking position by a spring 11. A bolt and / or latch removal device for removing a bolt or latch of a corresponding locking device is not described.

[0008] The DE 11 63 703 A describes a locking device for a door in a vehicle body with an upper sliding bolt 29 and a lower sliding bolt 29, which engage as opposing sliding bolts 29 in the closed position in a ceiling-side striking plate and a floor-side striking plate.

[0009] The DE 103 57 296 A1 describes a drive for a skylight sash 16. The drive comprises a drive motor 3, which drives a drive chain 31 for the motorized opening and closing movement of the skylight sash. The drive has a locking device for the skylight sash, which has a spindle nut 52 on an output shaft 54, which interacts with a spring as a mechanical energy storage device.

[0010] The invention is based on the object of creating a locking device for a double-leaf door with a passive leaf and an active leaf, as well as a door opener device with a locking device for a door with a stationary door frame and a single-leaf door leaf, which functions reliably and precisely in practice and which enables advantageous handling during assembly and maintenance.

[0011] This object is achieved by the invention with the subject matter of main claim 1 and with the subject matter of the independent main claim 3.

[0012] The subject matter of the main claim 1 is a locking device for a double-leaf door with a passive leaf and an active leaf, comprising a passive leaf locking device for mounting in or on the passive leaf and an active leaf locking device for mounting in or on the active leaf, wherein the passive leaf locking device has a bolt and / or latch lifting device for lifting a bolt and / or a latch of the corresponding active leaf locking device, wherein the bolt and / or latch lifting device is mountable in a housing of the passive leaf locking device, into which the bolt and / or latch of the corresponding active leaf locking device engages when the door is in the closed position, wherein the bolt and / or latch lifting device has a lifter, which is preferably designed as a linearly movable slider or pivotably movable lever,by an actuating device of the passive wing lock device, it can be selectively brought into a first, preferably retracted position and / or into a second, preferably extended position, wherein the bolt and / or latch lifting device can be mounted in a housing of the passive wing lock device and / or the door opener device, into which the bolt and / or latch of the corresponding lock device engages when the door is in the closed position, and wherein the bolt and / or latch lifting device has a lifter, which is preferably designed as a linearly movable slider or pivotably movable lever, and can be selectively brought into a first, preferably retracted position and / or into a second, preferably extended position by an actuating device of the passive wing lock device and / or the door opener device. Particularly important for the solution of the underlying problem is,that the lifter has a first body and a second body as well as a length adjustment device and preferably a spring device that cushions the first body and / or the second body, and that the length adjustment device has at least one adjustment screw by means of which the length of the lifter can be adjusted, wherein the at least one adjustment screw connects the first body to the second body in a length-adjustable manner or connects the first body to another body of the lifter in a length-adjustable manner or connects the second body to another body of the lifter in a length-adjustable manner. A preferred development provides that an electric door opener with an electrically switchable door opener latch is designed as a component of the lock mechanism of the passive wing lock device, wherein the door opener latch of the door opener interacts with the latch and / or the bolt of the active wing lock,by the door opener latch locking the latch and / or the bolt in its locking position and releasing the latch and / or the bolt in its release position.

[0013] The subject matter of the independent main claim 3 is a door opener device with a locking device for a door with a stationary door frame with a single-leaf door leaf, wherein the door opener device is designed for installation in or on the stationary door frame and the locking device is designed for installation in or on the door leaf, wherein the door opener device has an electric door opener with an electrically switchable door opener latch, which is designed to interact with a bolt and / or latch of the locking device, in that the door opener latch of the door opener interacts with the bolt and / or latch of the locking device in such a way that the door opener latch locks the bolt and / or latch in its locking position and releases the bolt and / or latch in its release position, wherein the bolt and / or latch lifting device is mounted in a housing of the door opener device,into which the bolt and / or latch of the locking device engages in the closed position of the door, wherein the bolt and / or latch lifting device comprises a lifter, which is preferably designed as a linearly movable slider or pivotably movable lever, and can be brought into a first, preferably retracted position and / or a second, preferably extended position by an actuating device of the door opener device. Particularly important for the solution of the underlying problem is that the lifter comprises a first body and a second body as well as a length adjustment device and preferably a spring device cushioning the first body and / or the second body, and that the length adjustment device comprises at least one adjusting screw by means of which the length of the lifter can be adjusted.wherein the at least one adjusting screw connects the first body to the second body in a length-adjustable manner or connects the first body to another body of the lifter in a length-adjustable manner or connects the second body to another body of the lifter in a length-adjustable manner.,

[0014] The first body and the second body of the lifter provided according to main claim 1 and / or the independent main claim 3 preferably form the main bodies, which determine the length of the overall body of the lifter. The lifter can preferably consist of two main bodies: a first body and a second body. However, designs are also possible that have one or more additional bodies, which, together with the first body and the second body, determine the overall length of the lifter. In the patent claims, the term "the two bodies" is used in subclaims with reference to the bodies of the lifter. This term is to be understood as "the first body and the second body."

[0015] It is essential that the length adjustment device of the lifter has at least one adjustment screw that adjustably connects at least two of the bodies of the lifter to one another. Preferred embodiments of the lifter have a length adjustment device with only one adjustment screw. However, embodiments are also possible in which several adjustment screws are present for carrying out the length adjustment process. In preferred embodiments, the axis of the adjustment screw and / or the axes of the adjustment screws run in the direction of the length adjustment of the lifter, preferably symmetrically in the lifter; for example, the adjustment screw can be arranged in the longitudinal center line of the lifter, preferably penetrating several bodies of the lifter.

[0016] Particularly preferred embodiments of the lifter are each designed as a slider, which is preferably moved linearly during the lifting process, i.e., is extended linearly and retracted linearly. In the slider embodiments, but also in other embodiments, e.g., as a pivoting lever, it can preferably be provided that the axis of the extension and retraction movement of the lifter runs along the longitudinal axis of the lifter and / or along the axis of the longitudinal adjustment device.

[0017] During lifting, in preferred embodiments, the front surface of the lifter, i.e., the surface of the lifter facing the bolt or latch to be lifted, can be designed as an actuating surface that interacts with the bolt and / or latch to be lifted, i.e., is in contact with the bolt or latch during lifting. The front surface of the lifter can be formed by one of the two bodies of the lifter, i.e., by the first body or the second body, or even by another body of the lifter.

[0018] The spring device of the lifter can preferably be connected between at least two bodies of the lifter. The spring device can be supported with one spring end directly or indirectly on the first body of the lifter or on another body of the lifter, and with its second spring end directly or indirectly on the second body of the lifter or on another body of the lifter. In the indirect support, the adjusting screw, in particular the adjusting screw with a screw nut arranged thereon, can preferably be involved, e.g., interposed.

[0019] A particularly advantageous handling for the length adjustment results from preferred embodiments which provide that the length of the lifter can be adjusted, preferably continuously and / or proportionally, by turning the adjusting screw at least in a section of the adjusting screw, optionally in the sense of increasing the length of the lifter and / or in the sense of reducing the length of the lifter, in that by turning the adjusting screw in a first direction of rotation, preferably counterclockwise, the length of the lifter is increased and by turning the adjusting screw in a second direction of rotation, preferably clockwise, the length of the lifter is reduced.

[0020] The rotation of the adjusting screw can be carried out by actuating the screw head of the adjusting screw, in particular when the screw head is accommodated in a receiving space of the lifter and the accessibility of the receiving space is provided, e.g. by a tool.

[0021] Particularly advantageous is continuous adjustability and / or proportional adjustability depending on the number of turns or rotational position of the adjusting screw. In preferred embodiments, the axis of the adjusting screw is aligned along the axis of the lifting movement and / or along the axis of the length adjustment device.

[0022] Particularly simple handling of the length adjustment results from designs which provide that the spring device, preferably as a compression spring device, is connected between the first body and the second body, specifically in the sense of forcing the first body and the second body apart during the length adjustment process and / or in the sense of impact protection and / or collision protection in the event of a collision of the lifter with the door leaf when the door is opened, wherein it is preferably provided that the spring device braces the first body and the second body together during the length adjustment process and / or during operation of the lifter.

[0023] What is essential in such designs is that the first body and the second body are connected via the adjusting screw in a length-adjustable manner, and that the first body and the second body are clamped together via the spring device. In preferred designs, this clamping is achieved by interposing a screw nut arranged on the adjusting screw.

[0024] Particularly precise adjustability is achieved with designs which provide that the first body 10 and / or the second body has or has a guide device via which the two bodies are guided relative to one another, preferably linearly, along the length of the lifter during the length adjustment process.

[0025] Particular advantages in connection with guiding the bodies of the lifter arise from developments which provide that the guide device is designed such that the first body and the second body have complementary, interlocking, preferably linearly displaceable shapes, such as U-shaped or T-shaped configurations. Advantageously, for guiding the bodies of the lifter, it can also be provided that mutually sliding, facing surfaces of the first body and / or the second body and / or other bodies of the lifter have complementary, interlocking profiles, such as a U-shaped profile or a projecting strip profile.

[0026] A particularly simple design and particularly easy handling during length adjustment is possible with designs which provide that the at least one adjusting screw has a screw head and a screw shaft, wherein it is provided that the screw head is rotatably mounted in or on one of the two bodies, preferably the first body, and is supported axially, preferably in both axial directions, preferably in a receiving space formed in this body, accessible from the outside, and that the screw shaft interacts directly or indirectly with the other of the two bodies, preferably the second body, preferably in the sense of introducing axial forces.

[0027] Particularly reliable designs are possible if the adjusting screw engages a screw nut for length adjustment. In this sense, designs are possible which provide that the screw head of the adjusting screw is rotatably mounted and axially supported in one of the two bodies, preferably in the first body, and that the screw shaft of the adjusting screw can be screwed into a threaded hole of a screw nut which is acted upon in the length adjustment direction by the spring device and is guided and / or held on the other of the two bodies, preferably the second body, and that the screw nut has a support formed on the screw nut which, during the length adjustment process and / or during operation with the length of the lifter set, interacts with a support formed on the other of the two bodies, preferably on the second body, wherein it is preferably provided that the spring device,preferably designed as a compression spring device, with one end thereof supported on the screw nut and with its other end on the other of the two bodies, in particular on the second body, in order to clamp the two bodies together with the screw nut interposed.

[0028] Particularly simple designs in terms of construction, preferably without a screw nut, are possible if it is provided that the screw head of the adjusting screw is rotatably mounted and axially supported in one of the two bodies, preferably the first body, and that the screw shaft of the adjusting screw can be screwed into a threaded hole extending in the length adjustment direction, which is formed in the other of the two bodies, preferably the second body, during the length adjustment process.

[0029] Particularly high compactness of the designs is obtained if it is provided that the first body is designed as a U-body and the second body as a T-body, or the first body is designed as a T-body and the second body as a U-body.

[0030] Preferred embodiments with a U-body and a T-body as the main body can provide that the U-body is formed with a first U-leg and a second U-leg and a connecting web, and that the T-body is formed with a central longitudinal leg, a first T-leg and a second T-leg, and that the U-body and the T-body are arranged such that the longitudinal leg of the T-body engages between the U-legs of the U-body, and that the adjusting screw is arranged with its screw head in or on the connecting web of the U-body and is arranged with its screw shaft in the area between the U-legs of the U-body and engages in the longitudinal leg of the T-body.

[0031] Particularly advantageous embodiments with regard to the design and integration of the screw nut into the lifter are obtained if it is provided that the screw nut of the adjusting screw, preferably designed as a plate-shaped and / or elongated component, is arranged so as to cross, preferably pass through, the longitudinal leg of the T-body, wherein a central section of the screw nut, in which the threaded hole of the screw nut is formed, is arranged in the region of the longitudinal leg of the T-body, so as to cross and preferably pass through the longitudinal leg, and wherein two lateral sections of the screw nut protrude beyond the longitudinal leg of the T-body, that a helical spring, preferably a helical compression spring, of the spring device is arranged on both sides of the longitudinal leg of the T-body,which rests with one end on one of the T-legs of the T-body and with its other end on one of the lateral sections of the screw nut projecting beyond the longitudinal leg of the T-body.

[0032] Particularly precise function during length adjustment is achieved if it is provided that on both sides of the longitudinal leg of the T-body there is a guide pin extending parallel to the longitudinal leg, which is fixed and / or integrally formed on the associated leg of the U-body, preferably on the free end of the U-leg, for the purpose of guiding the screw nut, in that the guide pin passes through a through hole formed in the two lateral projecting sections of the screw nut, and / or for the purpose of guiding the helical spring, in that the guide pin engages in one of the two helical springs.

[0033] The support of the screw nut is particularly advantageously integrated in the lifter if it is provided that the screw nut is arranged with its middle section transversely, preferably passing through, the longitudinal leg of the T-body, has a support formed on the screw nut which cooperates with a support on the longitudinal leg of the T-body, which support is preferably formed as a transverse web at the end of the longitudinal leg of the T-body.

[0034] The handling of the length adjustment is particularly simplified and damage to the lifter during the adjustment process is prevented if it is provided that a stop device is assigned to the greatest adjustable length of the lifter, in that it is provided that the stop device has at least one stop element on one of the two bodies, preferably formed on the first body, and at least one stop element on the other of the two bodies, preferably formed on the second body, and that the stop device is assigned in the stop position of the two stop elements to the greatest adjustable length of the lifter, e.g. corresponding to a rebate clearance of 8 mm, in that the stop position of the two stop elements forms a limitation of the length of the lifter when the adjusting screw is turned in the direction of rotation in the sense of an increase in the length of the lifter and / or in the sense of a movement of the two bodies apart.

[0035] In order to prevent damage caused by overtightening the adjusting screw, particularly preferred embodiments provide that in the stop position of the two stop elements, upon further rotation in the sense of increasing the length of the lifter, the set length of the lifter remains unchanged while the stop position of the two stop elements continues to exist and during the rotation of the adjusting screw, however, the screw nut on the screw shaft is displaced from the screw head to the end of the screw shaft under compression of the spring device, wherein during this displacement of the screw nut it is preferably provided that the screw nut with its support formed on the screw nut leaves the support formed on one of the two bodies, preferably the second body, and the compression spring device which is connected between the screw nut and one of the two bodies, preferably the second body,is compressed.,

[0036] Particularly safe overload protection is achieved with further developments which provide that the screw nut, when displaced on the screw shaft towards the end of the screw shaft, comes out of the threaded engagement of the screw shaft at the end of the screw shaft, and that in the non-threaded position of the screw nut and screw shaft, when the adjusting screw is turned further in the direction of rotation in the sense of increasing the length of the lifter and / or moving the two bodies apart, the adjusting screw rotates freely with the end of its screw shaft on the screw nut, preferably in contact with it.

[0037] Particularly advantageous is an automatic re-coupling of the internal thread of the screw nut onto the external thread of the screw shaft after idle turning in the overload protection. For this purpose, it can be provided that when the screw nut and screw shaft are in the disengaged position, when the adjusting screw is turned in the opposite direction, i.e. in the sense of reducing the length of the extractor and / or in the sense of moving the two bodies towards each other, the adjusting screw automatically re-engages the thread with the screw nut, preferably under the action of the spring device, and then the screw nut on the screw shaft of the adjusting screw, with the spring device relaxing and the stop position of the stop device being maintained, the support formed on the screw nut again comes into the operative position, preferably into contact with the support formed on one of the two bodies, preferably the second body.

[0038] In addition or alternatively to the stop device which is assigned to a largest adjustable length of the stop, preferred embodiments can provide that a stop device is assigned to the smallest adjustable length of the lifter, by providing that the stop device has at least one stop element on one of the two bodies, preferably formed on the first body, and at least one stop element on the other of the two bodies, preferably formed on the second body, and that the stop device in the stop position of the two stop elements of the smallest adjustable length of the lifter, e.g.corresponding to a rebate clearance of < 3 mm, in that the stop position of the two stop elements forms a limitation of the length of the lifter when the adjusting screw is rotated in the direction of rotation in the sense of a reduction in the length of the lifter or in the sense of a movement of the two bodies towards one another, wherein it is preferably provided that a spring device is interposed between the two bodies, preferably between the stop elements of the two bodies in the sense of an over-rotation protection.

[0039] The object underlying the invention is thus achieved, as shown, with a bolt and / or latch removal device designed according to one of patent claims 1 to 15. This object is an assembly for use in a passive wing lock or an electric door opener. However, the object underlying the invention is also achieved by a complex object, namely a passive wing lock device and / or a door opener. It is essential that the passive wing lock device and / or the door opener each have a bolt and / or latch removal device designed according to one of claims 1 to 15.

[0040] The passive wing lock device according to the invention is a passive wing lock device for mounting in or on a passive wing of a double-leaf door with a passive wing and an active wing. The passive wing lock device has a lock mechanism that has a bolt and / or latch lifting device for a bolt and / or latch of an active wing lock, which is mounted in or on the active wing. The passive wing lock device can preferably optionally have an upper locking bar device and / or a lower locking bar device. It is essential that the bolt and / or latch lifting device of the passive wing lock device is designed according to one of the exemplary embodiments described herein.

[0041] Designs of the passive wing lock device are also possible which, in the lock mechanism of the passive wing lock device, have an electric door opener as a component of the lock. The door opener has a door opener latch that can be electrically switched into a locked or released position in order to interact with the latch and / or the bolt of the active wing lock, i.e. to lock or release the latch or the bolt of the active wing lock. In addition to the electrically switchable door opener latch, the electric door opener can have a lifting device in order to lift the bolt and / or the latch, which interacts with the door opener latch of the electric door opener, after the door opener latch has been released. In these designs of the passive wing lock with an electric door opener, the bolt and / or latch lifting device is designed according to one of the exemplary embodiments described herein.

[0042] The object underlying the invention can, as mentioned above, also be achieved by an electric door opener device as such, i.e. not in conjunction with a passive leaf lock device. The electric door opener device according to the invention is intended for installation in or on a stationary door frame, preferably in the region of a striker plate of a single-leaf door with a door leaf mounted, preferably pivotably, in the stationary door frame. The electric door opener device has an electric door opener with an electrically switchable door opener latch, which interacts with a bolt and / or a latch of a locking device mounted in or on the door leaf of the single-leaf door. The door opener latch of the door opener can be electrically switched into a locked position and a released position, as explained above for the door opener as a component of the passive leaf lock.It is essential that the electric door opener device according to the invention, which solves the problem underlying the invention, has a bolt and / or latch lifting device designed according to one of patent claims 1 to 15. This bolt and / or latch lifting device can be mounted on the strike plate side within a common housing of the door opener device in or on the stationary door frame of the single-leaf door, or else adjacent to the housing of the electric door opener device mounted on the strike plate side. The bolt and / or latch lifting device can interact with the latch or bolt of the leaf-side-mounted locking device for lifting purposes. Designs are possible in which the latch is locked or released by the electric door opener latch, and the lifting device lifts the latch after it has been released.Designs are possible in which the door strike latch interacts only with the bolt or a latch bolt of the corresponding locking device. In this case, the lifting device can be designed according to the invention so that, after the door strike latch is released, it lifts only the bolt or latch bolt.

[0043] Alternatively or additionally, electric door opener devices are also possible in which the electric door opener latch interacts with the latch of the locking device, but the latch does not require lifting after the door opener latch has been released, e.g., if it is a tilt latch that is only soft-switched upon release. In such a case, the electric door opener device can, according to the invention, have a lifting device intended solely for lifting the bolt of the locking device.

[0044] What is essential in all embodiments of the electric door opener device according to the invention is that the lifting device, which can be designed as a latch and / or bolt lifting device, is designed according to the invention according to one of the embodiment examples described herein.

[0045] The invention is explained further below in conjunction with drawings.

[0046] Showing: Fig. 0.1 a schematic front view of a double-leaf door with one passive leaf and one active leaf; Fig. 0.2 a top view of a lock case of a passive leaf lock with retracted bolt and latch lifting device; Fig. 0.3 a top view in Fig. 0.2, but with extended bolt and latch lifting device; Fig. 0.4 an exploded view of an embodiment of the bolt lifter; Figs. 1a to 1e various views of the bolt lifter of Fig. 0.4 in the delivery state with the smallest set length, e.g. corresponding to a rebate clearance of 3 mm; Fig. 2a to 2e various views of the bolt lifter of Fig. 1a to 1e , but in stop position at the largest adjustable length, e.g. corresponding to rebate clearance 8 mm; Fig. 3a to 3e various views of the bolt lifter of the Fig. 1a to 1e and the Fig. 2a to 2e , but after overtightening the adjusting screw in conjunction with overload protection.

[0047] The embodiment shown in the figures is a passive wing lock that can be mounted in or on a passive wing of a double-leaf door. The double-leaf door is shown in Fig. 0.1. It has a stationary door frame T in which a first pivoting wing P and a second pivoting wing A are pivotally mounted on hinges B about a vertical axis of rotation. In the case shown, the pivoting wing P is designed as a passive wing in or on which the passive wing lock PS is mounted. In the case shown, the pivoting wing A is designed as an active wing in or on which an active wing lock AS is mounted.

[0048] The passive wing P is preferably a retractable wing, also called a fixed wing. The active wing A is preferably a retractable wing, also called a moving wing.

[0049] In the following, reference is made to Figs. 0.2 and 0.3. The passive sash lock PS has a lock case 1k in which the lock mechanism of the passive sash lock PS is housed. This has a rotatably mounted nut 1n, via which an upper locking bar device 1o and a lower locking bar device 1u can be actuated. The upper locking bar device 1o and the lower locking bar device 1u each have locking bar connection devices 1os and 1us arranged in the lock case. In addition, a bolt and latch lifting device 1rf mounted in the lock case 1k can be actuated via the nut 1n. The actuation takes place in each case by actuating the nut 1n. The nut 1n has nut arms 1au, 1am, 1ao, which interact directly or indirectly via intermediate gears with the locking bar connecting devices 1us, 1os and the bolt and latch lifting device 1rf for their actuation. 1. The structure and function of the bolt and latch lifting device of the embodiment of the figures

[0050] The bolt and latch lifting device 1rf comprises a bolt lifting device with a bolt lifter 100 and a latch lifting device with a latch lifter 200. In the illustrated embodiment, these two devices are combined in the bolt and latch lifting device 1rf with the follower 1n as a common actuating device. However, in modified embodiments, the devices can be designed with the same or a corresponding structure as the illustrated combined devices, e.g., each can be designed as a bolt lifting device or as a latch lifting device.

[0051] The bolt lifter 100 is designed to lift a bolt R of the active sash lock AS, which, when the door is in the closed position, protrudes into the bolt receiving space 1r in the lock case 1k of the passive sash lock PS. "Lifting" means pushing the bolt of the active sash lock out of the lock case 1k of the passive sash lock PS.

[0052] The bolt R of the active sash lock AS can be a linearly displaceably mounted lock bolt that can be extended and retracted via the lock mechanism of the active sash lock AS. Preferably, the lock bolt is locked in the extended locking position when the door is closed via a locking device of the active sash lock AS. Preferably, it has an unlocking element at its front end, e.g., a slidably mounted unlocking pin, the actuation of which via the bolt lifter 100 can release the locking of the extended bolt, so that, to open the door, the extended bolt can be unlocked by the bolt lifter and pushed back from the passive sash lock case 1k into its unlocked position in the active sash lock AS.

[0053] In modified embodiments, the bolt of the active sash lock AS can also be designed as a latch bolt. The latch bolt is preferably also equipped with an unlocking element near its front end.

[0054] Similar to the bolt lifter 100, the latch lifter 200 is designed to lift the latch F of the active sash lock AS, which, when the door is in the closed position, protrudes into the latch receptacle 1f of the lock case 1k of the passive sash lock, i.e., to push it out of the lock case 1k of the passive sash lock. The latch of the active sash lock can preferably be a spring-loaded, shooting latch, which often does not have a locking mechanism in the extended position.

[0055] In the following, the structural design of the illustrated embodiment of the bolt lifter 100 is initially described with reference to the exploded view in Fig. 0.4. The bolt lifter 100 is designed as a structural unit consisting of the following main components: base body 10, base body 20, screw nut 40 and coil springs 51, 51, as well as a longitudinally extending adjusting screw 80 for adjusting the length of the lifter 100. The aforementioned components can be seen as individual components in the exploded view in Fig. 0.4.

[0056] The bolt lifter assembly 100 – hereinafter referred to as lifter 100 or bolt lifter 100 – has roller receiving pins on its bottom and top sides. These are guide pins that engage in guide slots in the housing base and housing cover and, in the case shown, produce a horizontally directed linear movement when the lifting is actuated by attached rollers. In the specific exemplary embodiment shown, the assembly 100 has a roller receiving pin 101 on its side facing the housing base. This roller pin is designed to project vertically upwards on the base body 20 and rolls in the associated guide slot in the housing base. On the side facing the housing cover, the lifter 100 in this specific case has two roller receiving pins 102, 103, which are also designed to project vertically on the base body 20 and are guided in guide slots in the housing cover.

[0057] Reference is made to Fig. 0.2 and 0.3. The lifter 100 is actuated via the nut. The nut 1n has for this purpose a long nut arm 1au (lower in the illustration) which is connected to the nut 1n in a rotationally fixed manner. At the free end of the nut arm there is a driving pin which, with a roller attached, engages in a control cam recess 25 in the base body 20 of the lifter. By rotating the nut 1n, the lifter 100 is extended from its retracted position in Fig. 0.2 into its extended position in Fig. 0.3. The lock bolt R of the active leaf lock AS, which engages in the bolt receiving space 1r in the closed position of the door, is lifted out when the lifter 100 is extended, i.e. pushed back into the active leaf lock AS. When lifting, the lifter is positioned with the front free end of its head body 10 in contact with the lock bolt.

[0058] The extension and retraction movement of the lifter 100 is effected by rotating the nut 1n. Starting from the retracted position in Fig. 0.2, the nut 1n is rotated counterclockwise, thereby moving it into the rotational position shown in Fig. 0.3. The bolt lifter 100 is moved linearly in a horizontal line of motion from its retracted, retracted position to the extended position. The retraction of the bolt lifter 100 is effected by rotating the nut 1n in the opposite direction, i.e., clockwise in the illustrated case, or preferably also via a return spring device.

[0059] Accordingly, the latch lifter 200 is actuated via the short latch arm 1am, which is the middle arm in the illustration, when the follower is actuated. The latch lifter 200 is extended linearly in a corresponding manner to lift the latch F of the active sash lock out of the latch receiving space 1f of the passive sash lock. The same procedure applies to retracting the latch lifter 200 as described above for the bolt lifter 100.

[0060] In the illustrated embodiment, the bolt lifter 100 is length-adjustable to adjust the length of the lifter to the door's rebate clearance during installation or maintenance. The bolt lifter therefore has the adjusting screw 80, with which the length of the lifter can be continuously adjusted.

[0061] In the illustrated embodiment, the latch lifter 200 is not length-adjustable. However, modified versions are possible in which the latch lifter 200, preferably with the same design as the bolt lifter 100, is length-adjustable. 2. The structural design of the length-adjustable bolt lifter of the embodiment shown in the figures

[0062] Reference is made to the exploded view of Fig. 0.4 in conjunction with the Fig. 1 to 3 In the illustrated embodiment, the bolt lifter 100 is constructed as follows: The head body 10 of the lifter 100 is designed as a U-shaped body. The U-shaped body has two U-legs 11, 11 and a connecting leg 12.

[0063] The base body 20 of the lifter 100 is designed as a T-shaped body. The T-shaped body has a central longitudinal leg 21 and two lateral T-legs 22, 22. The base body 20 engages with the head body 10 by the central longitudinal leg 21 of the base body engaging between the two U-legs 11, 11 of the head body. A sliding guide is formed between the central longitudinal leg 21 of the base body and the two U-legs 11, 11 of the head body. For this purpose, a longitudinally extending U-rail is formed on the inner sides of each of the U-legs 11, 11, and an elongated, projecting guide strip is formed on the mutually opposite outer sides of the longitudinal leg 21. The sliding guide thus runs along the longitudinal extension of the longitudinal leg of the U-shaped legs of the base body and along the longitudinal extension of the U-shaped legs of the head body. It is used for adjusting the length of the lifter.

[0064] The head body 10 and the base body 20 are connected to each other via the adjusting screw 80. The adjusting screw 80 extends in the central longitudinal line of the head body 10 and the base body 20. For this purpose, the adjusting screw 80 penetrates the connecting leg 12 of the head body. The screw head 81 of the adjusting screw is accommodated in a receiving space in the connecting leg 12 of the head body. The screw shaft 82 of the adjusting screw projects into the space between the U-legs 11, 11 of the head body and engages axially into an elongated receiving space in the longitudinal leg 21 of the base body. The elongated receiving space extends in the central longitudinal axis of the longitudinal leg 21 and is open at the sides.The screw shaft 82 engages with its external thread into the internal thread of the threaded bore 41 of the screw nut 40, which is arranged between the head body 10 and the base body 20 in such a way that it passes transversely through the longitudinal leg 21 of the base body 20.

[0065] In the illustrated embodiment, the screw nut 40 is divided into a central section 42 with the threaded bore 41 and two lateral sections 43, 43.

[0066] The screw nut 40 has a body that is designed as an elongated plate or can also be rod-shaped. The body has two constrictions. The widened central section 42 with the threaded bore 41 is formed between the two constrictions. The widened lateral section 43 is formed to the sides of each of the constrictions. The screw nut 40 extends transversely through the central longitudinal leg 21 of the base body 20. For this purpose, the central longitudinal leg 21 has a passage for the screw nut to pass through. This passage space is formed by the fact that the longitudinal leg 21 in this section is formed from two upper longitudinal webs and two lower longitudinal webs. The screw nut 40 extends transversely between the two upper longitudinal webs and the two lower longitudinal webs.Between the two upper longitudinal webs and the two lower longitudinal webs, an opening is formed for the widened central section 42 of the screw nut to pass through. On each side of the longitudinal leg, one of the two lateral sections 43 of the screw nut protrudes in this area. The screw nut 40 is thus secured against rotation and, upon rotation of the adjusting screw 80, is moved linearly along the axis of the longitudinal leg on the screw thread 82. The rotational lock is also achieved by securing the screw nut 40 by the guide pins 61 engaging in the guide holes 44.

[0067] At the free end of the longitudinal leg 21, a transverse web 24 is formed, which axially delimits the passage space and forms the free end of the longitudinal leg 21 of the base body 20.

[0068] Two helical compression springs 51, 51 are connected between the base body 20 and the screw nut 40. One of the helical compression springs 51 is arranged on each side of the longitudinal leg 21 of the base body 20. The helical compression spring rests with one end on the underside of one of the T-legs 22 of the base body 20 and with its other end on a surface facing the T-leg 22 on the associated protruding lateral section 43 of the screw nut 40. The T-legs 22 also form the guide pins for the helical compression springs 51.

[0069] A guide pin 61, 61 is fixed to each end of each of the two U-shaped legs 11 of the head body 10. The guide pins extend longitudinally parallel to the longitudinal leg 21 of the base body and each pass through a guide hole 44 formed in the lateral section 43 of the screw nut 40 protruding from the longitudinal leg 21. The guide pin 61 axially engages the helical spring 51 supported on the lateral section 43. The guide pin 61 thus forms a guide pin for the helical spring 51 and, at the same time, also a guide pin for the screw nut 40.

[0070] The adjusting screw 80 connects the head body 10 to the base body 20 in a length-adjustable manner. The length of the lifter 100 is determined by the length of the assembly, whose outer body is formed by the head body 10 and the base body 20. The adjusting screw extends along the longitudinal centerline of the assembly and thus forms the axis of the longitudinal extension and, at the same time, the axis for the length adjustment movement. Using the adjusting screw 80, the length of the assembly 100 can be continuously adjusted to accommodate the door's rebate clearance. The adjustment is performed from the outside.

[0071] The screw head 81 is rotatably mounted in the receiving space in the connecting web 12 of the head body 10 and is axially supported on the head body 10 in both axial directions. To secure the set rotational position of the screw head, a threaded bore is formed in the connecting web 12, leading into the receiving space, into which a grub screw 87 can be screwed from the outside to prevent rotation. 3. The adjustment process of the bolt lifter of the embodiment of the figures

[0072] First, the Fig. 1 and 2 Reference is made. Fig. 1 shows the bolt lifter assembly 100 in its delivery state. A short length of the assembly is set, in this specific case, for example, corresponding to a rebate clearance of 3 mm. Fig. 2 shows the assembly unit in the position in which the largest adjustable length of the assembly unit is set, in the specific case, for example, corresponding to a rebate clearance of 8 mm.

[0073] The limitation to the largest adjustable length is determined by the stop position of a stop device, which consists of a stop element 10a formed on the head body 10 and a stop element 20a formed on the base body 20. The stop element 10a is formed on the inside of one U-leg 11 of the head body 10 in the area of ​​the U-rail. The stop element 20a is formed on the projecting elongated guide element on the outside of the central longitudinal leg 21 of the base body 20. Fig. 1 the two stop elements 10a, 20a are arranged away from each other, i.e. out of the stop position. Fig. 2 the two stop elements 10a, 20a in the stop position.

[0074] Between the position in Fig. 1 , in which the lifter 100 has the said short longitudinal extension and the position in Fig. 2, in which the lifter 100 has the greatest adjustable longitudinal extension, any intermediate positions can be continuously adjusted by turning the adjusting screw, namely by turning the adjusting screw in the first direction of rotation, in this case counterclockwise, an increase in length is set and by turning in the opposite direction, in this case clockwise, a shortening of the length is set.

[0075] In the entire length adjustment range between the positions of the Fig. 1 and 2 is based, as can be seen from the Fig. 1 and 2 As can be seen, the screw nut 40, which is acted upon by the helical compression springs 51, 51, rests with a support 46 formed on its central section 42 against a support formed on the longitudinal leg 21 of the base body 20. In the specific embodiment, as best seen in the Figures 1b and 2bvisible - the support 46 formed on the central portion 42 of the screw nut 40 is formed on the side of the screw nut 40 facing the head body 10. The support 26 formed on the longitudinal leg 21 is formed on the inside of the transverse web 24 of the longitudinal leg 21, which delimits the passage space of the screw nut 40 in the longitudinal leg 21.

[0076] During the length adjustment process between the positions of the Fig. 1 and 2 Thus, in the entire range between these positions, the screw nut 40, which is acted upon by the helical compression springs 51, 51, is positioned with its support 46 on the support 26 formed on the longitudinal leg 21 of the base body 20. The helical compression springs 51, 51 remain unchanged in the initial preload during the length adjustment process in this range.

[0077] When the largest adjustable length is set, ie in the stop position in Fig. 2, overload protection is provided if the adjusting screw is turned further to increase the length of the lifter, in this case counterclockwise.

[0078] For the following description of the overload protection, please refer to the Figures 2 and 3 Based on the attack position in Fig. 2Upon further turning of the adjusting screw 80 counterclockwise, the screw nut 40 is displaced on the screw shaft towards the end of the screw shaft, i.e. the screw nut 40 moves on the screw shaft 82 towards the base body, under compression of the helical springs 61. The stop position between the stop element 10a formed on the U-leg 11 of the head body and the stop element 20a formed on the middle leg 21 of the base body 20 remains, with the result that the length of the structural unit 100 remains unchanged during this displacement of the screw nut 40 on the base shaft. During the displacement of the screw nut 40, only the support 46 formed on the middle section 42 of the screw nut moves away from the support 26 formed on the transverse web 24 of the longitudinal leg of the base body, as already mentioned under compression of the helical compression springs 51, 51.This shift is clearly evident when comparing the . Figures 2b and 3b .

[0079] In Fig. 3 With continued counterclockwise rotation of the adjusting screw 80, the screw nut 40 finally reaches the end of the screw shaft 82. The internal thread of the threaded hole 41 of the screw nut 40 is thereby disengaged from the external thread of the screw shaft 82. With continued counterclockwise rotation of the adjusting screw 80, the end of the screw shaft 82 rotates freely relative to the threaded hole 41 of the screw nut 40. The position in Fig. 3 thus forms the end position of the screw nut 40. In this end position, the screw nut 40 is out of thread engagement with the screw shaft 82 and is under the action of the compressed coil springs 51, 51 at the end of the screw shaft 82.

[0080] By reversing the direction of rotation of the adjusting screw 80, ie when turning clockwise in the position in Fig. 3 the internal thread of the threaded hole 41 of the screw nut 40 comes into threaded engagement with the threaded shaft 82 under the effect of the spring loading of the helical compression springs 51, 51. Upon further rotation in this direction of rotation, the screw nut 40 then moves on the screw shaft 82 under expansion of the helical springs 51, 51 in the direction of the screw head 81 until the screw nut 40 reaches the position in Fig. 2 has been reached and the support 46 formed on the middle section of the screw nut 40 comes back into contact with the support 26 formed on the transverse web 24 of the longitudinal leg 21 of the base body 20.

[0081] By continuing to turn the adjusting screw 80 in this direction, ie clockwise in the sense of shortening the length, the Fig. 2existing stop position between the stop element 10a formed on the U-leg 11 of the head body and the stop element 20a formed on the longitudinal leg 21 of the base body 20 is canceled, so that the area is reached which lies between the positions of the Fig. 1 and 2 in which the length of the lifter can be adjusted by turning the adjusting screw 80. It should be noted that in this range, by turning the adjusting screw in the respective direction, an extension or shortening of the length of the lifter can be adjusted, while the compression springs 51, 51 remain unchanged.

[0082] The helical compression springs 51, 51 are therefore only released when the adjusting screw 80 is over-tightened from the position in Fig. 2 to the position in Fig. 3 compressed as part of the overload protection and are released when the adjusting screw is turned back from the position in Fig. 3 to the position in Fig. 2returned to the initial preload. In addition, the helical compression springs 51, 51 also function as dampers or springs for the extended lifter 100 in the event of a possible collision of the lifter with the door when opening the door from the closed position.

[0083] During the lifting process itself, when the lifter lifts the bolt R with the front free end of its head body 10 in contact with the bolt R engaging in the bolt receiving space, the helical compression springs 51, 51 remain in their initial tension.

[0084] In the delivery state in Fig. 1 The length of the lifter 100 corresponds to a clearance of 3 mm, for example. The length of the lifter should be based on the delivery condition in Fig. 1 The adjustment screw should not be shortened any further by turning it. This is to prevent damage to the thread of screw shaft 82 and screw nut 40.

[0085] If, based on the delivery state in Fig. 1 the adjusting screw 80 is turned clockwise in the sense of a shortening of the length, a further shortening of the Fig. 1 set length by maintaining a further mutual movement of the base body and the head body, but only until a stop position of the base body 20 and the head body 10 is reached, ie an end stop position, approximately between the free end of the longitudinal web 21 of the base body and the connecting web 12 of the head body. A comparable overload protection, as for the largest adjustable length in conjunction with the Figures 2 and 3 explained, is not available for the smallest adjustable length in the illustrated embodiment.

[0086] In embodiments of passive wing lock devices which are modified compared to the embodiment of the figures, it can be provided that the latch lifter 200 is also adjustable in length, preferably by being designed with the same structure as the bolt lifter 100.

[0087] Furthermore, modified embodiments are possible in which the lifting device has only a bolt lifter 100. The corresponding active wing lock device can be designed to have a latch bolt that integrates the functions of a bolt and a latch. However, the corresponding active wing lock can also have a separate latch in addition to the bolt, which, however, does not require a latch lifter, e.g., if it is designed as a tilt latch. 4. Modified embodiments with the use of a lifting device in conjunction with a door opener

[0088] The bolt and latch lifting device 1rf, in particular the bolt lifting device 100 as shown in the Fig. 1 to 3illustrated and described above, can also be used in conjunction with an electric door opener. In this respect, modified embodiments are possible compared to the embodiment of the figures, in which the passive wing lock device PS has an electric door opener with an electrically switchable door opener latch as a further component of the lock mechanism. The door opener latch can interact with a latch of the corresponding active wing lock in that the door opener latch arrests the latch in its locked position and releases the latch in its released position. For the latch of the active wing lock engaging in the lock case 1k in the closed position of the door, a latch lifting device can be provided in the passive wing lock, which has a latch lifter 200 that is designed to be length-adjustable, e.g. like the bolt lifter 100 in the figures.

[0089] In further modified embodiments, the lifting device can be designed as a component of an electric door opener device. The electric door opener device with the lifting device can be mounted in the stationary door frame in the region of the strike plate of a single-leaf door. The electric door opener latch of the door opener device can interact with the latch of the corresponding locking device, which is mounted on the leaf of the single-leaf door. The lifting device can be designed as a latch and / or bolt lifting device that lifts the latch and / or bolt of the corresponding locking device after the latch and / or bolt has been released by releasing the electric door opener latch. The bolt lifter and / or the latch lifter can be designed to be length-adjustable, preferably with the same structure as the bolt lifter 100 in the figures.The actuating device for operating the lifting device can have an electric motor so that both the door opener latch and the lifting device can be operated electrically. List of reference symbols

[0090] TDoor frame PPassive wing PSPassive wing lock AActive wing ASActive wing lock RLatch FFalves BHinges kLock case 1nNut 1auNut arm 1amNut arm 1aoNut arm 1oUpper locking bar device 1osUpper locking bar connection device 1uLower locking bar device 1usLower locking bar connection device 1rfBolt and latch lifting device 1rBolt receiving space 1fLatch receiving space 1sFaceplate 10Head body 10aStop element 11U-leg 12Connecting leg 20Base body 20aStop element 21Middle longitudinal leg 22T-leg / guide pins 24Crossbar 25Curved recess 26Base body-side support 40Screw nut 41Threaded hole 42Middle section 43Side section 44Guide hole 46Screw nut-side support 50Spring device 51Coil compression spring 61Guide pin 80Adjusting screw 80Set screw 81Screw head 82Screw shaft 85Anti-twist device 100Bolt lifter unit 200Latch lifter unit

Claims

1. Locking device for a double-leaf door with a passive leaf (P) and an active leaf (A), comprising a passive leaf locking device (PS) for mounting in or on the passive leaf (P) and an active leaf locking device (AS) for mounting in or on the active leaf (A), wherein the passive leaf locking device (PS) has a bolt and / or latch lifting device (1rf) for lifting a bolt (R) and / or a latch (F) of the corresponding active leaf locking device (AS), wherein the bolt and / or latch lifting device (1rf) is mountable in a housing of the passive leaf locking device (PS), into which the bolt (R) and / or the latch (F) of the corresponding active leaf locking device (AS) engages when the door is in the closed position, wherein the bolt and / or latch lifting device (1rf) has a lifter (100), which is preferably designed as a linearly movable slider or pivotably movable lever,can be brought into a first, preferably retracted position and / or into a second, preferably extended position by an actuating device (1n) of the passive wing lock device (PS), characterized by - that the lifter (100) has a first body (10) and a second body (20) as well as a length adjustment device (80) and preferably a spring device (50, 51) cushioning the first body (10) and / or the second body (20), and - that the length adjustment device (80) has at least one adjustment screw (80) by means of which the length of the lifter (100) can be adjusted, wherein the at least one adjustment screw (80) connects the first body (10) to the second body (20) in a length-adjustable manner or connects the first body (10) to a further body of the lifter (100) in a length-adjustable manner or connects the second body (20) to a further body of the lifter (100) in a length-adjustable manner.

2. Lock device according to claim 1, characterized by that an electric door opener with an electrically switchable door opener latch is designed as a component of the lock mechanism of the passive wing lock device (PS), wherein the door opener latch of the door opener interacts with the latch (F) and / or the bolt (R) of the active wing lock (AS) in that the door opener latch locks the latch (F) and / or the bolt (R) in its locked position and releases the latch (F) and / or the bolt (R) in its released position.

3. A door opener device with a locking device for a door with a stationary door frame and a single-leaf door leaf, wherein the door opener device is designed for installation in or on the stationary door frame and the locking device is designed for installation in or on the door leaf, wherein the door opener device has an electric door opener with an electrically switchable door opener latch, which is designed to interact with a bolt (R) and / or a latch (F) of the locking device, in that the door opener latch of the door opener interacts with the bolt (R) and / or the latch (F) of the locking device in such a way that the door opener latch locks the bolt (R) and / or the latch (F) in its locking position and releases the bolt (R) and / or the latch (F) in its release position, wherein the bolt and / or latch removal device (1rf) is mounted in a housing of the door opener device,into which the bolt (R) and / or the latch (F) of the locking device engages in the closed position of the door, wherein the bolt and / or latch lifting device (1rf) has a lifter (100), which is preferably designed as a linearly movable slide or pivotably movable lever, can be brought into a first, preferably retracted position and / or into a second, preferably extended position by an actuating device of the door opening device, , characterized by - that the lifter (100) has a first body (10) and a second body (20) as well as a length adjustment device (80) and preferably a spring device (50, 51) cushioning the first body (10) and / or the second body (20), and - thatthe length adjustment device (80) has at least one adjustment screw (80) by means of which the length of the lifter (100) can be adjusted, wherein the at least one adjustment screw (80) connects the first body (10) to the second body (20) in a length-adjustable manner or connects the first body (10) to a further body of the lifter (100) in a length-adjustable manner or connects the second body (20) to a further body of the lifter (100) in a length-adjustable manner.

4. Device according to one of the preceding claims, characterized by thatthe spring device (50), preferably as a compression spring device (51, 51), is connected between the first body (10) and the second body (20) in such a way that it acts to force the first body (10) and the second body (20) apart during the length adjustment process and / or to provide impact protection and / or collision protection in the event of a collision between the lifter (100) and the door leaf when the door is opened, wherein it is preferably provided that the spring device (50, 51, 51) braces the first body (10) and the second body (20) together during the length adjustment process and / or during operation of the lifter (100).

5. Device according to one of the preceding claims, characterized by that the at least one adjusting screw (80) has a screw head (81) and a screw shaft (82), wherein it is provided - thatthe screw head (81) is rotatably mounted in or on one of the two bodies (10, 20), preferably the first body, and is supported axially, preferably in both axial directions, preferably accessible from the outside in a receiving space formed in this body, and - that the screw shaft (82) interacts directly or indirectly with the other of the two bodies (10, 20), preferably the second body (20), preferably in the sense of introducing axial forces.

6. Device according to one of the preceding claims, characterized by a) - that the screw head (81) of the adjusting screw (80) is rotatably mounted and axially supported in one of the two bodies (10, 20), preferably in the first body (10), and - thatthe screw shaft (82) of the adjusting screw (80) can be screwed into a threaded hole (81) of a screw nut (40) which is acted upon by the spring device in the length adjustment direction and is guided and / or held on the other of the two bodies (10, 20), preferably the second body (20), and - thatthe screw nut has a support (46) formed on the screw nut, which, during the length adjustment process and / or during operation with the length of the lifter (100) set, cooperates with a support (26) formed on the other of the two bodies (10, 20), preferably on the second body (20), wherein it is preferably provided that the spring device (50, 51), preferably designed as a compression spring device, is supported with its one end on the screw nut (40) and with its other end on the other of the two bodies (10, 20), in particular on the second body (20), in order to clamp the two bodies (10, 20) together with the interposition of the screw nut (40), or b) - that the screw head of the adjusting screw (80) is rotatably mounted and axially supported in one of the two bodies (10, 20), preferably the first body (10), and - thatthe screw shaft (82) of the adjusting screw (80) can be screwed into a threaded hole extending in the length adjustment direction, which is formed in the other of the two bodies (10, 20), preferably the second body (20), during the length adjustment process.

7. Device according to one of the preceding claims, characterized by that the first body is designed as a U-body (10) and the second body as a T-body (20), or the first body is designed as a T-body (20) and the second body as a U-body (10), - that the U-body (10) is formed with a first U-leg (11) and a second U-leg (11) and a connecting web (12), and - that the T-body (20) is formed with a central longitudinal leg (21), a first T-leg (22) and a second T-leg (22), and - thatthe U-body (10) and the T-body (20) are arranged such that the longitudinal leg (21) of the T-body engages between the U-legs (11, 11) of the U-body, and - that the adjusting screw (80) is arranged with its screw head (81) in or on the connecting web (12) of the U-body (10) and is arranged with its screw shaft (82) in the area between the U-legs (11) of the U-body (10) and engages in the longitudinal leg (21) of the T-body.

8. Device according to claim 7, preferably in conjunction with claim 6, characterized by - thatthe screw nut (40) of the adjusting screw, preferably designed as a plate-shaped and / or elongated component, is arranged so as to cross, preferably pass through, the longitudinal leg of the T-body, - wherein a central section (42) of the screw nut (40), in which the threaded hole (44) of the screw nut (40) is formed, is arranged in the region of the longitudinal leg (21) of the T-body (20), so as to cross and preferably pass through the longitudinal leg, and - wherein two lateral sections (43) of the screw nut (40) project beyond the longitudinal leg (21) of the T-body (20), - thaton both sides of the longitudinal leg (21) of the T-body (20) there is arranged a helical spring, preferably a helical compression spring (51), of the spring device (50), which is supported with one end on one of the T-legs (22) of the T-body (20) and with its other end on one of the lateral sections (43) of the screw nut (40) projecting beyond the longitudinal leg (21) of the T-body (20).

9. Device according to claim 8, characterized by thaton both sides of the longitudinal leg (21) of the T-body (20) there is arranged a guide pin (61, 61) extending parallel to the longitudinal leg (21), which is fixed and / or integrally formed on the associated leg (11) of the U-body (10), preferably on the free end of the U-leg (11), for the purpose of guiding the screw nut (40) by the guide pin (61, 61) passing through a through hole formed in the two lateral projecting sections (43) of the screw nut (40), and / or for the purpose of guiding the helical spring (51, 51) by the guide pin (61, 61) engaging in one of the two helical springs (51, 51).

10. Device according to claim 8 or claim 9, characterized by thatthe screw nut (40) is arranged with its central section (42) transversely, preferably passing through, the longitudinal leg (21) of the T-body (20), has a support (46) formed on the screw nut (40) which cooperates with a support (26) on the longitudinal leg (21) of the T-body (20), which support is preferably formed as a transverse web (24) at the end of the longitudinal leg (21) of the T-body (20).

11. Device according to one of the preceding claims, characterized by that a stop device is assigned to the largest adjustable length of the lifter (100), by providing - that the stop device has at least one stop element (10a) on one of the two bodies (10, 20), preferably formed on the first body (10), and at least one stop element (20a) on the other of the two bodies (10, 20), preferably formed on the second body (20), and - thatthe stop device (10a, 20a) in the stop position of the two stop elements (10a, 20a) is assigned to the largest adjustable length of the lifter (100), e.g. corresponding to a rebate clearance of 8 mm, in that the stop position of the two stop elements (10a, 20a) forms a limitation of the length of the lifter (100) when the adjusting screw (80) is rotated in the direction of rotation in the sense of an increase in the length of the lifter (100) and / or in the sense of a movement apart of the two bodies (10, 20).

12. Device according to claim 11, characterized by thatin the stop position of the two stop elements (10a, 20a) upon further rotation in the sense of increasing the length of the lifter (100), the set length of the lifter remains unchanged while the stop position of the two stop elements (10a, 20a) continues to exist and during the rotation of the adjusting screw (80) the screw nut (40) on the screw shaft (82) is displaced from the screw head (81) to the end of the screw shaft (82) under compression of the spring device, wherein during this displacement of the screw nut (40) it is preferably provided, thatthe screw nut (40) with its support (46) formed on the screw nut (40) leaves the support (26) formed on one of the two bodies (10, 20), preferably the second body (20), and the compression spring device (50, 51, 51) connected between the screw nut (40) and one of the two bodies (10, 20), preferably the second body, is compressed.

13. Device according to claim 12, characterized by - that the screw nut, when displaced on the screw shaft (82) towards the end of the screw shaft, comes out of the thread engagement of the screw shaft (82), and - thatin the non-threaded position of the screw nut (40) and screw shaft (82), upon further turning of the adjusting screw (80) in the direction of rotation in the sense of increasing the length of the lifter (100) and / or moving the two bodies (10, 20) apart, the adjusting screw rotates freely with the end of its screw shaft (82) on the screw nut (40), preferably in contact therewith.

14. Device according to claim 13, characterized by thatin the non-threaded engagement position of the screw nut (40) and screw shaft (82), when the adjusting screw (80) is turned in the opposite direction, ie in the sense of reducing the length of the extractor (100) and / or in the sense of moving the two bodies (10, 20) towards each other, the adjusting screw (80) automatically re-engages the thread with the screw nut (40), preferably under the action of the spring device (50, 51, 51), and then the screw nut (40) on the screw shaft (82) of the adjusting screw (80) while relaxing the spring device (50, 51, 51) and maintaining the stop position of the stop device (10a, 20a), the support (46) formed on the screw nut (40) is again in the operative position, preferably in contact with the support (26) formed on one of the two bodies (10, 20), preferably the second body (20). reached.

15. Device according to one of the preceding claims, characterized by thata stop device is assigned to the smallest adjustable length of the lifter (100), by providing - that the stop device has at least one stop element on one of the two bodies (10, 20), preferably formed on the first body (10), and at least one stop element on the other of the two bodies (10, 20), preferably formed on the second body (20), and - thatthe stop device in the stop position of the two stop elements is assigned to the smallest adjustable length of the lifter (100), e.g. corresponding to a rebate clearance of < 3 mm, in that the stop position of the two stop elements forms a limitation of the length of the lifter (100) when the adjusting screw (80) is rotated in the direction of rotation in the sense of a reduction in the length of the lifter (100) or in the sense of a movement of the two bodies towards one another, wherein it is preferably provided that a spring device is interposed between the two bodies (10, 20), preferably between the stop elements of the two bodies (10, 20) in the sense of an over-rotation protection.

Images