Door lock with cassette latch

Abstract

The invention relates to a door lock (1) for a door, window, or the like. The door lock (1) has a lock housing (1g) comprising a lock base, a lock top, and a lock faceplate (1s). The door lock (1) has a bolt that is mounted in the lock case and is movable between a forward-locked and a retracted position. The door lock (1) has a guide device for linearly guiding the movement of the bolt (2), wherein the guide device has a first guide block (31) and a second guide block (32), and the bolt (2) is mounted to be linearly displaceable between the first guide block (31) and the second guide block (32). According to the invention, the first guide block (31) and / or the second guide block (32) is / are attached to the lock faceplate (1s).

Description

[0001] The present invention relates to a door lock according to the features of the preamble of claim 1.

[0002] Document US 3,948,066 describes a door lock. The door lock has two escutcheons located on opposite sides of the door and a closing strike plate. The door lock further has a bolt that is movably guided between two guide blocks in the lock case. The guide blocks are attached to the escutcheons.

[0003] Document US 3,702,549 also describes a door lock in which the bolt is guided movably between two guide blocks in the lock housing.

[0004] It is an object of the present invention to provide a door lock with a guided bolt, wherein the stability of the bolt guide is improved compared to the prior art. Preferably, the door lock should have a mechanically stable mounting of the bolt that is resistant to break-in attempts while requiring little space.

[0005] This problem is solved according to the invention by a door lock according to the features of claim 1.

[0006] A door lock for a door, window, or the like is proposed, wherein the door lock comprises a lock housing including a lock base, a lock top, and a lock faceplate, wherein the door lock includes a bolt that is mounted in the lock case and is movable between a forward-locked and a retracted position, wherein the door lock includes a guide device for linearly guiding the movement of the bolt, wherein the guide device includes a first guide block and a second guide block, and the bolt is mounted to be linearly displaceable between the first guide block and the second guide block. A key feature of the door lock according to the invention is that the first guide block and / or the second guide block are attached to the lock faceplate.

[0007] Advantageously, the attachment to the faceplate allows the lock housing to efficiently absorb the forces acting on the bolt. This enables a stable and, in particular, torsionally rigid mounting of the bolt within the lock housing.

[0008] In particular, the guide blocks can be arranged on the narrow sides of the bolt, for example, above and below it. The bolt is positioned between the guide blocks and guided by them.

[0009] Preferably, the term "bolt" refers to a linearly movable bolt element of the door lock. The bolt can be extended from the lock housing to lock the door and retracted into the lock housing to unlock it. The bolt can be driven electrically, by a spring mechanism, or manually.

[0010] If the door lock is to be used with a mediator or in the active leaf of a double-leaf door, the bolt must have a release pin. Preferably, the release pin is movably mounted in a receptacle of the bolt and protrudes with a head section from the end face of the bolt. By inserting the release pin into the bolt using the mediator or a lifting device arranged on the active leaf, a retaining element blocking the bolt can, for example, be displaced such that the blocking of the bolt by the retaining element is released. The bolt can then be inserted into the door lock by applying a force to the end face of the bolt.

[0011] In particular, the door lock may have one or more additional locking elements. For example, a latch or one or more additional locking points.

[0012] Preferably, the door lock can be designed as a mortise lock. In particular, the lock faceplate is connected to the lock base and / or the lock top, for example by screws or rivets.

[0013] In an advantageous embodiment, the first guide block and / or the second guide block can be attached to the lock faceplate by means of a screw connection. This ensures quick and cost-effective installation of the first guide block and / or the second guide block on the lock faceplate.

[0014] In particular, it may be provided that the first guide block and / or the second guide block are additionally attached to the lock base and / or the lock ceiling. This can further improve the stability of the door lock.

[0015] In an advantageous embodiment, the first guide block and / or the second guide block may be fastened to the lock base and / or the lock top by means of a screw connection. Alternatively or additionally, the first guide block and / or the second guide block may be fastened to the lock base and / or the lock top by means of a positive fit, an adhesive bond, or a rivet connection.

[0016] It may also be provided that the first guide block has a groove and the bolt has a projection on a side surface facing the first guide block, the projection associated with the first guide block engaging in the groove of the first guide block, and / or that the second guide block has a groove and the bolt has a projection on a side surface facing the second guide block, the projection associated with the second guide block engaging in the groove of the second guide block.

[0017] Alternatively, it can be provided that the first guide block has a projection and the bolt has a groove on a side surface facing the first guide block, associated with the first guide block, wherein the projection of the first guide block engages in the groove associated with the first guide block, and / or that the second guide block has a projection and the bolt has a groove on a side surface facing the second guide block, associated with the second guide block, wherein the projection of the second guide block engages in the groove associated with the second guide block.

[0018] The transverse dimensions, i.e., the thickness of the guide blocks, can correspond to the distance between the lock base and the lock ceiling. The guide blocks can rest directly against the lock base and / or the lock ceiling with their side surfaces. It is possible for the guide blocks to have one or more raised sections on their side surfaces that contact the lock base and / or the lock ceiling directly. These raised sections can be provided with threaded holes for fastening the guide blocks to the lock ceiling and / or the lock base.

[0019] Furthermore, it may be provided that the longitudinal extent of the projection assigned to the first guide block is shorter than the longitudinal extent of the groove of the first guide block and / or that the longitudinal extent of the projection assigned to the second guide block is shorter than the longitudinal extent of the groove of the second guide block.

[0020] The length of the projection allows for lateral support of the bolt against torque. This results in improved stability of the bolt guide, preventing tilting or twisting of the bolt.

[0021] The projections serve as guide strips, with the length of the guide strips being between 5 and 30 percent of the length of the groove.

[0022] The projections, which serve as guide rails, can be positioned at the rear end, in the area of ​​the beam. This offers the advantage of stable support and stabilization of the beam while requiring minimal space.

[0023] Furthermore, it may be provided that the door lock has a plate-shaped gear element which is movably mounted in the lock housing, wherein the first guide block and / or the second guide block has guiding means, in particular a guide pin or a guide bed in which a section of the gear element is inserted and movably guided.

[0024] It can be provided that the guide bed is located on the side of the guide block facing the castle ceiling and / or on the side facing the castle floor. This results in a smaller space requirement.

[0025] It may be provided that the plate-shaped gear element is a gear slide that is movably connected to the bolt.

[0026] The gear slide has a guide track in which a pin located on the bolt is guided. Movement of the gear slide causes movement of the bolt. The gear slide can also interact with a latch and an auxiliary latch of the door lock. The door lock is a self-locking lock.

[0027] The invention is explained below by way of example using an embodiment and the accompanying drawings. The embodiment shown is not to be understood as limiting. Fig. 1a shows a schematic representation of a single-leaf door. Fig. 1b shows a schematic representation of the door lock. Fig. 2 shows a view of the door lock. Fig. 3 shows a view of the bolt of the door lock. Fig. 4 shows another view of the bolt of the door lock. Fig. 5 shows the side of the first guide block of the door lock facing the top of the lock. Fig. 6 shows the side of the first guide block of the door lock facing the bottom of the lock. Fig. 7 shows the side of the second guide block of the door lock facing the top of the lock. Fig. 8 shows the side of the second guide block of the door lock facing the bottom of the lock. Fig. 9 shows the first guide block and the second guide block with the coupling slide and gear slide attached to them. Fig. 10 shows the first guide block and the second guide block with the coupling slide attached to them.Figure 11 shows the first guide block and the second guide block with the attached gear slide.

[0028] Fig. 1a Figure 1 shows a schematic representation of a door T, which is attached to a door frame R by hinges. A door lock 1 with a bolt 2 is arranged in a lock recess of the door T.

[0029] Fig. 1b Figure 1 shows a schematic representation of the door lock 1. The door lock 1 comprises a lock faceplate 1, a lock housing 1g, a latch 1f, and the bolt 2. When the door T is closed, the bolt 2 engages in a receptacle on a frame-side strike plate (not shown) that is associated with the bolt 1, and the latch 1f engages in a receptacle on the frame-side strike plate (not shown) that is associated with the latch 1f. The door lock 1 further comprises a cylinder receptacle 1z and a lock follower 1n with an attached handle 1h. A cylinder is inserted into the cylinder receptacle 1z. The handle 1h is in Fig. 1b The handle 1b can be designed as a door handle. However, it can also be designed as a pull bar or a push bar. Furthermore, it can be provided that the door lock 1 according to the invention is installed in an active leaf of a double-leaf door. In this case, the bolt 2 of the door lock 1 is provided with a release pin which interacts with a lifting device associated with the release pin, which is arranged on a passive leaf.

[0030] Fig. 2 Figure 1 shows a view of door lock 1. Door lock 1 has a lock base and a lock top, as is known. The lock base and lock top are in Fig.2 not shown. Furthermore, the door lock 1 has the lock faceplate 1s. The bolt 2 is movably mounted in the lock housing 1g of the door lock 1 and is movable between a forward-locked position, in which the bolt 2 protrudes from an opening in the lock faceplate 1s associated with the bolt 2, and a retracted position, in which the bolt 2 is retracted into the lock housing 1g of the door lock 1.

[0031] The door lock 1 has a guide device for guiding the bolt 2. The guide device has a first guide block 31 and a second guide block 32. The bolt 2 is movably mounted between the first guide block 31 and the second guide block 32.

[0032] The first guide block 31 is attached to the lock faceplate 1s by means of a screw connection S1s and to the lock top (not shown) by means of a screw connection S1d. The first guide block 31 has corresponding threaded holes into which the respective screw connections S1s and S1d are inserted. Furthermore, the first guide block 31 is attached to the lock base (not shown) by means of another screw connection, whereby this screw connection is not shown. Fig. 2 is shown.

[0033] The second guide block 32 is attached to the lock faceplate 1s by means of a screw connection S2s and to the lock top (not shown) by means of screw connections S21d and S22d. The second guide block 32 has corresponding threaded holes into which the respective screw connections S2s, S21d, S22d, and S1d are inserted. Furthermore, the second guide block 32 is attached to the lock bottom (not shown) by means of another screw connection, these screw connections not shown. Fig. 2 is shown.

[0034] Reference is made to Fig. 3 On the side of the bolt 2 facing the first guide block 31, a projection 2vo associated with the first guide block 31 is formed, which is integrally formed with the bolt 2. The projection 2vo of the bolt 2 constitutes a guide rail that serves to guide the bolt 2 in the first guide block 31.

[0035] Reference is made to Fig. 4 On the side of the bolt 2 facing the second guide block 32, a projection 2vu associated with the second guide block 32 is formed, which is integrally formed with the bolt 2. The projection 2vu of the bolt 2 constitutes a guide rail that serves to guide the bolt 2 in the second guide block 32.

[0036] Reference is made to Fig. 5 The first guide block 31 has a groove 31n on its side facing the bolt 2. When the door lock 1 is installed, the projection 2vo of the bolt 2, which is associated with the first guide block 31, engages in the groove 31n of the first guide block 31. The projection 2vo of the bolt 2 serves as a guide rail to guide the bolt 2 in the groove 31n of the first guide block 31. The first guide block 31 has a stepped profile on its side facing the lock head, with steps 31s1, 31s2, and 31s3. Steps 31s2 and 31s3 are at the same height. Furthermore, a projection 31v is formed between steps 31s2 and 31s3. The first guide block 31 has a first raised section 31h1. The first raised section 31h1 is formed integrally with the first guide block 31.The first raised section 31h1 is provided with a threaded bore for attaching the first guide block 31 to the lock ceiling by means of a screw connection. As will be described further below, sections of a coupling slide 5 are guided resting on the bearing surfaces 31s2 and 31s3 of the first guide block 31.

[0037] Reference is made to Fig. 6 The first guide block 31 has a bearing surface 31f on its side facing the lock base and a second raised section 31h2, which is raised relative to the bearing surface 31f. The second raised section 31h2 is formed integrally with the first guide block 31. As will be described further below, a section of a gear slide 4 is guided resting on the bearing surface 31f of the first guide block 31.

[0038] Reference is made to Fig. 7 The second guide block 32 has a groove 32n on its side facing the bolt 2. When the door lock 1 is installed, the projection 2vu of the bolt 2, which is associated with the second guide block 21, engages in the groove 32n of the second guide block 32. The projection 2vu of the bolt 2 serves as a guide strip to guide the bolt 2 in the groove 32n of the second guide block 32. By engaging the projection 2vo of the bolt 2 in the groove 31n of the first guide block 31 and by engaging the projection 2vu of the bolt 2 in the groove 32n of the second guide block, the bolt 2 is guided linearly and movably within the lock housing 1g. The second guide block 32 has a stepped profile with steps 32s1 and 32s2 on its side facing the lock top. Furthermore, the second guide block 32 has a first elevated section 32h1 and a second elevated section 32h2.The first raised section 32h1 and the second raised section 32h2 are formed integrally with the second guide block 32. Both the first raised section 32h1 and the second raised section 32h2 are provided with a threaded bore for fastening the second guide block 32 to the lock head by means of a screw connection. As described further below, a section of the coupling slide 5 rests on the step 32s2 of the second guide block 32.

[0039] Reference is made to Fig. 8 The second guide block 32 has, on its side facing the lock base, a first bearing surface 32f, a raised section 32, a step 32s3, and a second bearing surface 32f2. A third raised section 32h3 is formed with respect to the first bearing surface 32f, the second bearing surface 32f2, and the step 32s3. The third raised section 32h3 is formed integrally with the second guide block 32. The third raised section 32h3 and the second bearing surface 32f2 are each provided with a threaded bore, which serves to fasten the second guide block 32 to the lock base by means of a screw connection.

[0040] As will be described further below, a section of the gear slide 4 rests on the first bearing surface 32f1 and the second bearing surface 32f2 of the second guide block 32. The thickness of the gear slide 4 is less than the height of the third raised section 32h3, so that a section of the gear slide 4 is guided between the lock base and the bearing surfaces 32f1 and 32f2. The first bearing surface 32f1 and the second bearing surface 32f2 form a guide bed in which a section of the gear slide 4 rests and is movably guided.

[0041] Reference is made to Fig. 9 The first guide block 31 and the second guide block 32 serve to guide the transmission slide 4 and the clutch slide 5. The transmission slide 4 is movably mounted on the side of the first guide block 31 facing the bottom of the lock and on the side of the second guide block 32 facing the bottom of the lock. The clutch slide 5 is movably mounted on the side of the first guide block 31 facing the top of the lock and on the side of the second guide block 32 facing the top of the lock.

[0042] The gear slide 4 is motionally coupled to the bolt 2, such that a movement of the gear slide 4 causes a movement of the bolt 2.

[0043] The clutch slide 5 can be relocated by means of a locking cylinder (not shown) and serves to couple a previously neutral-switched lock nut (not shown) in order to couple the lock nut with a locking mechanism, so that by actuating the lock nut the transmission slide 4 is relocated, which causes the bolt 2 to be moved into its closed position.

[0044] Reference is made to Fig. 10 Figure 5 shows the mounting of the coupling slide 5 on the first guide block 31 and the second guide block 32. The coupling slide 5 has a first section 51, which is guided in the step 32s2 of the second guide block 32. The step 32s2 of the second guide block 32 forms a guide bed in which the first section 51 of the coupling slide 5 rests and is movably guided.

[0045] Furthermore, the coupling slide 5 has a second section 52 and a third section 53, which are spaced apart from each other by a gap and connected to each other via a stop area 5a. The second section 52 of the coupling slide 5 rests on the second step 31s2 of the first guide block 31, the third section 52 of the coupling slide 5 rests on the third step 31s3 of the first guide block 31, and the projection 31v of the first guide block 31 engages in the gap between the second section 52 and the third section 53 of the coupling slide 5. The second step 31s2 and the third step 31s3 of the first guide block 31 form a guide bed in which the sections 52 and 53 of the coupling slide 5 are respectively located and movably guided. The projection 31v of the first guide block 31 provides a limit to the movement of the coupling slide 5.The clutch slide 5 can only be moved towards the lock nut (not shown) until the stop area 5a of the clutch slide 5 comes into contact with the projection 31v of the first guide block 31.

[0046] Reference is made to Fig. 11 , in which the bearing arrangement of the gear slide 4 on the first guide block 31 and on the second guide block 32 is shown. The first guide block 31, as already shown in Fig. 6 The second raised section 31h2, which is integrally formed with the first guide block, is shown. The second raised section 31h2 of the first guide block 5 extends through a first guide slot 4s1 of the gear slide 4. The second guide block 32, as already shown in Fig. 8As shown, a third raised section 32h3 is formed. The third raised section 32h3 of the second guide block 32 engages a second guide slot 4s2 of the gear slide 4. The thickness of the gear slide 4 is less than the height of the second raised section 31h2 relative to the bearing surface 31f of the first guide block 31, so that a section of the gear slide 4 is guided between the lock base and the bearing surface 31f of the first guide block 31.

[0047] The door lock 1 is preferably designed as a self-locking lock. This means that when a door leaf with the door lock 1 mounted on it is closed relative to a door frame, the bolt 2 automatically extends from the door lock 1 and engages in a corresponding receptacle in the door frame. The door lock 1 further comprises a latch and a control latch. When the control latch makes contact with a frame-side strike plate and the latch engages in a corresponding receptacle on the door frame, a blockage of the gear slide 4 within the door lock 1 is released. The gear slide 4 then moves downwards in a vertical direction within the lock housing 1g, actuated by a spring. Crucially, the bolt 2 has a pin that is guided in the first guide slot 4s1 of the gear slide 4.The spring-loaded movement of the gear slide 4 moves the bolt 2 from its closed to its open position. The bolt 2 engages in the corresponding receptacle on the door frame.

[0048] The manual unlocking of door lock 1 is achieved by operating the lock cylinder. Door lock 1 has a multi-part lock cylinder with a first connecting cylinder, a second connecting cylinder, and a central cylinder located between them. An operating handle is attached to both the first and second connecting cylinders, allowing the user to rotate the respective cylinder.

[0049] One of the two connecting nuts is permanently coupled to the locking mechanism of the door lock 1, so that actuating this connecting nut using the attached operating handle unlocks the lock. This operating handle is usually located on the side of the door leaf facing the interior of a building. This ensures that even when the lock is engaged, a user can escape from a building at any time. When this connecting nut is actuated, the gear slide 4 is moved vertically upwards, causing the bolt 2 to move from its extended to its retracted position. Once the bolt 2 has reached its retracted position, a mechanism within the lock mechanism holds the gear slide 4 in its vertically extended position and the bolt 2 remains in the retracted position.

[0050] The other of the two connecting nuts is not permanently connected to the lock mechanism, but can be coupled to it by means of the coupling slide 5. Actuating this connecting nut using the attached operating handle only unlocks the lock when the connecting nut is coupled to the lock mechanism. This operating handle is usually located on the side of the door leaf facing the exterior of a building. This ensures that a user with a matching key can unlock the door lock 1. In the uncoupled state, the connecting nut is in neutral. The door lock 1 has a cylinder (not shown) which can be rotated after the matching key is inserted. Turning the key causes the coupling slide 5 to shift, thus coupling the previously uncoupled connecting nut to the lock mechanism.A distinction is made between the so-called changeover function (panic function C) and the forced closing function (panic function B). In the coupled state, the door lock 1 can be unlocked by actuating the connecting nut.

[0051] Optionally, the door lock 1 can include an electric motor by means of which the door lock 1 can be unlocked. In this case, the electric motor is electrically connected to an electronic access control system, for example, a reader for an RFID tag or a terminal where a user must enter a valid access code. Upon presentation of a valid RFID tag or entry of a valid access code by a user, the reader or terminal sends an activation signal to the electric motor. The electric motor then causes the gear slide 4 to move vertically upwards, thereby moving the bolt 2 from its open position to its closed position.

[0052] In the event of a forced entry attempt, the attachment of the guide blocks to the faceplate ensures that the forces acting on the bolt are effectively absorbed by the lock housing 1g. Forces acting on the bolt from the outside are transferred into the lock faceplate via the guide blocks. This prevents the forces from being transmitted to parts of the lock mechanism, thus avoiding damage to these components. Reference symbol list

[0053] 1 Door lock 1f Latch 1g Lock housing 1h Handle 1n Spindle 1s Faceplate 1z Cylinder receptacle 2 Bolt 2 upper bolt projection 2 lower bolt projection 31 first guide block 31f bearing surface of first guide block 31h2 second raised section of first guide block 31n groove of first guide block 31s1 step of first guide block 31s2 step of first guide block 31v projection of first guide block 32 second guide block 32f bearing surface of second guide block 32h1 first raised section of second guide block 32h2 second raised section of second guide block 32h3 third raised section of second guide block 32n groove of second guide block 32s1 step of second guide block 32s2 step of the second guide block 32s3 Stage of the second guide block 4 Gearbox slide 5 Clutch slide 5a Stop area of ​​the clutch slide 51 First section of the clutch slide 52 Second section of the clutch slide53 third section of the coupling slide S1s screw connection S1d screw connection S2s screw connection S21d screw connection S22d screw connection

Claims

1. Door lock (1) for a door or window or the like, wherein the door lock (1) has a lock housing (1g) comprising a lock base, a lock top and a lock faceplate (1s), wherein the door lock (1) has a bolt (2) which is mounted in the lock case and is displaceable between a forward-locked position and a retracted position, wherein the door lock (1) has a guide device for guiding the movement of the bolt (2) linearly, wherein the guide device has a first guide block (31) and a second guide block (32) and the bolt (2) is mounted to be linearly displaceable between the first guide block (31) and the second guide block (32), characterized by that the first guide block (31) and / or the second guide block (32) is or are attached to the lock faceplate (1s).

2. Door lock (1) according to claim 1, characterized by thatthe fastening of the first guide block (31) and / or the fastening of the second guide block (32) to the lock faceplate (1s) is carried out by means of a screw connection.

3. Door lock (1) according to one of claims 1 or 2, characterized by that the first guide block (31) and / or the second guide block (32) are additionally attached to the castle floor and the castle ceiling.

4. Door lock (1) according to claim 3, characterized by that The first guide block (31) and / or the second guide block (32) are attached to the bottom of the lock and / or to the top of the lock by means of a screw connection.

5. Door lock (1) according to one of claims 1 to 4, characterized by thatthe first guide block (31) has a groove (31n) and the bolt (2) has a projection (2vo) on a side surface facing the first guide block (31) that is associated with the first guide block (31), wherein the projection (2vo) associated with the first guide block engages in the groove (31n) of the first guide block (31), and / or that the second guide block (32) has a groove (32n) and the bar (2) has a projection (2vu) on a side surface facing the second guide block (32) associated with the second guide block (32), wherein the projection (2vu) associated with the second guide block engages in the groove (32n) of the second guide block (32).

6. Door lock (1) according to one of claims 1 to 4, characterized by thatthe first guide block (31) has a projection and the bolt (2) has a groove on a side surface facing the first guide block (31) that is associated with the first guide block (31), wherein the projection of the first guide block (31) engages in the groove of the bolt (2) that is associated with the first guide block (31), and / or that the second guide block (32) has a projection and the bolt (2) has a groove on a side surface facing the second guide block (32) associated with the second guide block (32), wherein the projection of the second guide block (32) engages in the groove of the bolt (2) associated with the second guide block (32).

7. Door lock (1) according to claim 5, characterized by that the longitudinal extent of the projection of the bolt (2) associated with the first guide block (31) is shorter than the longitudinal extent of the groove (31n) of the first guide block (31), and / or thatthe longitudinal extent of the projection of the bar (2) associated with the second guide block (32) is shorter than the longitudinal extent of the groove (32n) of the second guide block (32).

8. Door lock (1) according to one of claims 1 to 6, characterized by that the door lock has a plate-shaped gear element which is movably mounted in the lock housing (1g), wherein the first guide block (31) and / or the second guide block (32) has a guide bed in which a section of the gear element is inserted and movably guided.

9. Door lock (1) according to claim 8, characterized by that the guide bed is formed on the side facing the castle ceiling and / or on the side facing the castle floor of the respective guide block (31, 32).

10. Door lock (1) according to one of claims 8 or 9, characterized by thatthe plate-shaped gear element is a gear slide (4) which is movably connected to the bolt (2).

11. Door lock (1) according to one of claims 8 or 9, characterized by that the plate-shaped transmission element is a clutch slide (5).

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