ES2862182T3 - Latch lock with safety actuation - Google Patents

Abstract

Latch lock (2) consisting of two lock casings (2, 3), in which a lock casing (3) is screwed to a frame or similar element and which has a rear handle (7) to accommodate locking a latch (4) of a second lock casing (2), so that the latch (4) can be actuated on a pivot shaft (16) by means of a pivoting handle (5) against the force of a spring (21) which is loaded, and wherein the second lock housing (2) is bolted to a movable component, characterized in that the lock (4) is pivotally spring-mounted on the pivot shaft (16) of the handle and a latch of lock (10) rests against the rear of the lock (4) in the closed position of a lock cylinder (18).

Description

DESCRIPTION

Latch lock with safety actuation

The object of the invention is a deadbolt lock with safety actuation according to the preamble of claim 1 of the patent.

A bolt lock of this type has already been disclosed, for example, for the purpose of EP 1119 675 B1. This deadbolt lock consists of a first lock housing —which can be fixed to a frame or similar element— with a rear handle to house blocking the latch lock handle, and a second lock housing —which can be fixed to the door. or a similar element - in which the latch is slidably arranged. The latch can be opened by means of a handle acting against a spring force.

This known bolt lock solves the problem that with conventional bolt locks there is a gap between the two lock housings in which a suitable tool such as a screwdriver can be used to push the latch back. and thus open the door illegally. This is possible even if the handle is locked.

Document EP 1 119 675 B1 thus discloses the possibility of protecting doors against unauthorized manipulation.

The disadvantage of this known deadbolt lock is that it has to be extremely stable to protect against tampering and is therefore made of a metallic material. This increases the production and material costs of the deadbolt lock.

Furthermore, a slight deformation of the frame or the leaf of the door to be closed also causes inaccurate closing of this bolt lock, since with the known bolt lock the two lock housings of each of the respective components they must match exactly for the lock to actually engage. Therefore, the slider of the latch lock is also susceptible to contamination.

DE 102011018999 A1 and DE 102015220612 A1 disclose a deadbolt lock consisting of two lock casings, in which one lock casing has a rear handle for housing locking a lock of a second lock casing, so that the closure can be operated by a handle that can be pivoted on a pivot axis.

The drawback of these latch locks is that the lock is arranged at a distance from the handle and can only be actuated by levers that are molded into the handle and act in the corresponding cavities of the lock. This increases the size of the deadbolt lock and creates clearance between the handle and the latch.

Document DE 299 17091 U1 discloses a handle for mounting on a sheet metal cabinet door, consisting of two lock housings, in which a lock housing is screwed to the frame and has a rear handle to accommodate locking a lock of a second lock housing, the lock being operable by a handle that can pivot on a pivot axis, and in which the second lock housing is bolted to the sheet metal cabinet door.

If the handle is locked by actuation of a locking cylinder, then two pivoting plungers are actuated and a corner piece of the handle is pressed. Therefore, a large number of interacting components are required to lock the deadbolt lock, resulting in increased manufacturing costs.

Thus, the present invention has the object of designing a deadbolt lock which is inexpensive to manufacture and which ensures that both lock housings are securely locked even when doors or frames are deformed.

The objects on which the invention is based are achieved by the characteristics of the independent claims of the present patent, while advantageous configurations and variants of the invention can be found in the sub-claims.

An essential feature of the present invention is that the latch is pivotally spring-mounted on the pivot shaft of the handle, so that when the handle is actuated, the latch connected to the latter is actuated at the same time, since the The handle is actuated on a stop on the latch and carries it through the pivot shaft, and so that a latch latch rests against the rear of the latch in the closed position of a latch cylinder. Compared to a spring-loaded slide arrangement, with the pivoting arrangement of this latch handle there is the advantage of an operationally safe arrangement, since slide guides which are susceptible to contamination and the spring acting on the latch can be dispensed with. can be designed in a simple way. When the maximum pivot position of the handle is reached, the spring extending around the pivot axis allows the latch to be released from the mechanical engagement of the handle in the area of the stop and can be turned further in the pivot direction.

It is especially advantageous if the lock is fixed on the same pivot axis as the pivot axis of the lever, which results in a particularly simple constructional design.

The present invention dispenses with an expensive closed metal casing and provides at least one cover, on each of the two lock casings, which can be removed for mounting each of the lock casings, in order to allow them to be They can use the threaded receptacles below that are thus accessible. Such use consists in that a screw or other fixing element can be guided through the opening previously covered by the cover and can be inserted into a threaded receptacle arranged in the base of the lock housing. In this way it is possible, with the corresponding tool, to have access to the opening and to fix the screw or the fixing element.

The tool can be, for example, a screwdriver.

Thus, for example, a screw can be inserted into the screw socket through the opening and then tightened with a screwdriver. Since the screw is inserted into a thread under the lock housing, it can be fixed to the ground by tightening the lock housing.

Once each of the lock housings have been attached, each respective lock housings lid can be replaced in the corresponding lock housings and snapped securely into place. It is only possible to disassemble such a cover by using tools.

Another advantageous configuration of the invention is that the lock housings, which are pivotally mounted relative to each other, respectively have an inclined surface which comes into contact when the bolt lock is closed. The inclined surfaces preferably have the same angle.

However, the present invention is not limited to the presence of inclined surfaces. The use of flat surfaces, or wavy or serrated surfaces is also possible with the bolt lock according to the invention. Furthermore, in a further embodiment, the first lock housing mounted on a fixed frame has at least one centering pin that protrudes and can engage in a corresponding cavity of the second lock housing that is movably guided on the first housing lock.

The centering pin preferably has a conical shape, so that it is possible to center the centering pin when it enters the cavity. However, any other shape that allows entry into a cavity is also conceivable. Therefore, the centering pin can be implemented as a hexagon or, in general, as a polygon, or have a cylindrical shape or have a shape that prevents its rotation.

The invention is also not limited to two centering pins, since one centering pin or multiple of centering pins are also conceivable.

Therefore, it is also possible that each of the lock housings can be securely closed even with a deformed frame or deformed door leaf.

The second lock housing has a pivoting handle with the lock cylinder located inside. On This locking cylinder is where a key is inserted. The key operates the locking cylinder at the end of which the locking bolt is installed in a radial direction.

To close the bolt lock, the key and the lock cylinder are rotated so that the lock bolt is fitted against the rear of the lock according to the invention.

This contact connection prevents the latch from being pivoted back and consequently the latch lock from being opened. By turning the key again, the deadbolt can stop contacting the lock, allowing it to be freely actuated again and the deadbolt lock can be opened.

By tilting the handle on a pivot axis, the latch attached to said pivot pivots backward and therefore is no longer engaged with the projection. The spring loaded handle mechanically engages against a stop on the latch that is also spring loaded.

The invention is not limited to the cylinder pivoting together with the handle when the locking cylinder is tilted; The present invention also comprises a fixedly mounted lock cylinder which remains in the lock housing. In this case, the handle has a corresponding hole-shaped recess in which the closing cylinder is again housed during the closing process.

In the following, the invention is explained in more detail by means of the drawings which represent only one embodiment. Other characteristics and advantages of the invention that are essential to the invention appear from the drawings and their description.

It shows:

Figure 1: perspective view of the latch lock.

Figure 2: Side view of the latch lock.

Figure 3: sectional view of the latch lock in the open state.

Figure 4: sectional view of the bolt lock in the closed state.

Figure 5: bottom view of the latch lock in the open state.

Figure 6: bottom view of the latch lock in the closed state.

Figure 7: exploded view of the latch lock.

Figure 8: perspective view of the latch lock.

Figure 9: perspective view of the latch lock.

Figure 10: perspective view of the latch lock.

Figure 1 shows the bolt lock 1 according to the invention, consisting of the lock casings 2 and 3. The lock casing 2 has a pivoting handle 5 (into which a key 6 is inserted), as well as a lock 4 The lock housing 2 is arranged opposite the lock housing 3; the latter can house the guided lock 4 located in the lock housing 2.

To operate the bolt lock 1, the handle 5 of the lock housing 2 is operated, the handle 5 being able to be locked and unlocked with a key 6.

Handle 5 is mounted on a pivot shaft 16 pivotally in the direction of arrow 17.

If the key 6 is now turned and the lock housing 2 is unlocked, the handle 5 can be tilted about the pivot axis 16.

At the bottom of the handle 5 is installed the lock 4, which when the handle is operated in the direction of the arrow 17 also pivots back in the direction of the arrow 17.

In the upper area of the example shown here, the lock housing 2 has two covers 12 that can be removed with the aid of a tool.

The lock housing 3 is arranged opposite the lock housing 2.

The lock housing 3 also has a cover 13, which can also be removed by means of a tool. When the bolt lock 1 is closed, the lock housing 2 - with its front face 22, its inclined surface 24 and its front face 23— comes into contact with the corresponding surfaces of the lock housing 3 on the side opposite the lock housing 3.

Figure 2 shows the latch lock 1 in a side view. The handle 5 is mounted on a rotating shaft 16 so that it can rotate in the direction of arrow 17.

Below the handle 5 is the lock cylinder 18, which also pivots out of the lock housing 2 in the direction of the arrow 17 when the handle 5 is tilted.

However, the invention is not limited to this. In another configuration, the lock cylinder can also be fixedly mounted on the housing and it is only the handle that pivots.

Key 6 is inserted into lock cylinder 18.

If the bolt lock 1 is now closed, the front face 22 of the lock housing 2 abuts against the front face 25 of the lock housing 3.

Likewise, the inclined surface 24 of the lock housing 2 lies on the inclined surface 28 of the lock housing 3 and the front face 23 of the lock housing 2 also comes into contact with the front face 26 of the lock housing. lock 3.

In this way, each of the lock housings (2, 3) have inclined surfaces (24, 28) which are arranged inclined to each other at an angle to the closing direction; said inclined surfaces come into contact when the bolt lock (1) is closed.

However, the present invention is not limited to such direct contact between each of the surfaces. The bolt lock according to the invention also closes reliably even at a distance of 2 millimeters.

To center the two lock casings 2, 3 relative to each other, the inclined surface 28 has at least one centering pin 15 which engages in a corresponding cavity 31 (not shown) of the lock casing 2 on the inclined surface 24.

Figure 3 shows a sectional view of the bolt lock 1. It can be seen how the key 6 is inserted into the lock cylinder 18, the key 6 and the lock cylinder 18 being on the axis of rotation 33.

Below the locking cylinder there is installed a locking latch 10 in radial continuity, which is connected to the locking cylinder 18 through a screw 20.

If the key 6 is now turned on the axis of rotation in the direction of the arrow 34, the lock bolt 10 mounted on the lock cylinder 18 consequently also turns in the direction of the arrow 34.

In the longitudinal direction of the handle 5 is the pivot axis 16, through which the handle 5 pivots in the direction of arrow 17. The pivot axis is formed by the axis 36 on which the lock 4 is also mounted in a pivoting shape.

The handle 5 rests mechanically on the head 39 of the lock 4 through the stop 38 in the region of the pivot shaft 16 and thus carries it with it during a pivoting movement in the direction of the arrow 17.

However, the pivotal movement of the handle 5 is limited by a butt 29 which, when pivoted about the pivot shaft 16 in the direction of arrow 17, stops against a stop 30, so that the handle and the latch already they cannot pivot further in the direction of arrow 17.

The heel 29 is connected to the handle 5 since they are a single piece. Not only one bead is claimed in the present invention, but also two or more such beads.

In order to ensure a better engagement, the closure 4 has a spring 21 that transmits a spring tension from the pivot shaft 16 to the closure. This spring force counteracts a movement in the direction of the lock housing 3.

In the closed state of the latch lock 1, the latch 4 engages a rear handle 7 of the lock housing 3. If the latch 4 now engages this rear handle 7, the upper part 37 of the latch 4 rests against the outgoing horizontal 19 on top of rear handle 7.

When the latch pivots, each of the lock housings 2, 3 can no longer be separated from each other in the vertical direction.

Figure 4 shows the lock housing 1 in the closed state.

In this case the lock 4 fits into the rear handle 7 and rests on the projection 19.

Thanks to the latch 10, which is turned, it is prevented that the latch 4 can pivot backwards again in the direction of the arrow 17. It has already been rotated around the axis of rotation 33 in the direction of the arrow. 34 and is now against the contact surface 35 of the closure 4 and prevents it from being able to pivot back again on the axis of rotation 16 in the direction of arrow 17.

If the latch 10 is no longer in contact with the contact surface 35 of the latch 4, it can pivot in the direction of arrow 17 even if the handle 5 is not actuated.

If, in Figure 4, the lock latch 10 does not rest on the rear (contact surface 35) of the lock 4, then the lock can be pivoted on the pivot shaft 16 in the direction of arrow 17 and actuated, for example , with a screwdriver.

Figure 5 shows the bottom view of the bolt lock 1 according to the invention, being represented in the open state.

The latch 10 of the lock housing 2 is in this case outside the coupling of the lock housing 3.

Since in this case the closure latch 10 is not in contact with the contact surface 35 of the closure 4, it is possible to pry with the handle 5 upwards in the direction of the arrow 17 so that the closure 4 is now released of the rear handle 7 and the lock housings 2, 3 can be separated from each other in the vertical direction.

In the central slot, between the lock housings, the two lugs 29 of the handle 5 can be seen.

Figure 6 shows the latch lock 1 in the closed state, such that the latch bolt 10 pivots in the direction of the latch 4, and thus rests on the contact surface 35 of the latch 4 so that it cannot pivot in the direction of the closing latch and therefore fixed by the closing latch 10.

Figure 7 shows the exploded view of the bolt lock 1 according to the invention. In this case, the lock housings each have covers 12, 13.

The lock housing 2 therefore has the covers 12, which rest in pairs on the upper part of the lock housing.

These covers can only be removed with a tool and allow, once removed, access to the openings 32 below.

In these openings 32 are the receptacles for screws or nuts, which are necessary to fix each of the lock housings 2, 3 to a base.

Likewise, the lock housing 3 also has covers 13, which in turn hide an opening 32 in which the receptacles for screws or nuts are located.

Figure 8 shows a perspective view of the bolt lock according to the invention, in which the receptacles for screws or nuts are shown as slot-shaped receptacles.

The respective surfaces for bolts or nuts abut these slot-shaped receptacles and can be pulled up through opening 32.

Figure 9 shows again a perspective view of the bolt lock 1 according to the invention, in which the Lock housing 3 has - as an essential additional feature for the invention - at least one centering pin 15 that can engage in a corresponding cavity 31 of the lock housing 2.

At least one centering pin 15 is arranged on the inclined surface 24 of the lock housing 3. This centering pin enables centering, so that even if the lock housings 2, 3 are attached to slightly deformed frames or doors, A secure coupling of the two lock housings 2, 3 to each other is possible.

Figure 10 shows another perspective view of the latch lock 1, in which the cavities 31 can be seen, in which at least one centering pin 15 is inserted.

The cavities can be made larger or smaller depending on the application, in order to provide a corresponding tolerance.

In the present invention, therefore, a secure positioning of each of the housings one below the other is obtained, through at least one centering pin and an opposite cavity, and which allows easy mounting through the different removable covers on each of the lock housings.

Legend of the drawings

1. Latch lock

2. Lock housing

3. Lock housing

4. Closing

5. Handle

6. Key

7. Rear handle

8. Screw receptacle

9. Stop

10. Lock latch

11. Bolt / Nut Receptacles

12. Lid (of 2)

13. Lid (of 3)

14. Front face

15. Centering pin

16. Pivoting shaft

17. Arrow direction

18. Lock cylinder

19. Outgoing

20. Screw

21. Spring

22. Front face

23 Front face

24. Inclined surface

25. Front face

26. Front face

27. ^-

28. Inclined surface

29. Heel

30. Stop

31. Cavity

32. Opening

33. Rotation axis

34. Arrow direction

35. Contact surface

36. Axis

37. Upper face (of 4)

38. Stop

39. Head

Claims (9)

1. Latch lock (2) consisting of two lock casings (2, 3), in which a lock casing (3) is screwed to a frame or similar element and has a rear handle (7) for housed by locking a lock (4) of a second lock housing (2), so that the lock (4) can be actuated on a pivoting axis (16) by means of a pivoting handle (5) against the force of a spring (21 ) that is loaded, and in which the second lock housing (2) is bolted to a movable component, characterized in that the lock (4) is pivotally spring-mounted on the pivot shaft (16) of the handle and a Lock latch (10) rests against the rear of the lock (4) in the locked position of a lock cylinder (18). Latch lock (2) according to claim 1, characterized in that the pivot angle of the handle (5) on the pivot axis (16) of the handle (5) is limited by a stop (38). Latch lock (2) according to claim 1 or 2, characterized in that the pivot angle of the handle (5) on its pivot axis (16) is delimited by a lug (29) arranged on the handle (5) at opposition1 to the closure (4) in conjunction with a stop (30) on the side of the housing. Latch lock (2) according to one of Claims 1 to 3, characterized in that the lock housings (2, 3) have inclined surfaces (24, 28) which are respectively inclined at an angle to the closing direction and which come into contact when the bolt lock (1) is closed. Latch lock (2) according to claim 4, characterized in that at least one projecting centering pin (15) is arranged in the region of an inclined surface (28) of the lock housing (2, 3), which in a 1 of Figures 3 and 4 can be fitted into the corresponding cavity (31) on the opposite inclined surface (24, 28) of the other closure housing (2, 3). Latch lock (2) according to claim 5, characterized in that the centering pin (15) and the recess are conical in shape. Latch lock (2) according to one of Claims 1 to 6, characterized in that the locking cylinder (18) with the rotary locking bolt (10) is arranged on the pivoting handle. Latch lock (2) according to one of Claims 1 to 7, characterized in that both lock housings (2, 3) have a removable cover (12, 13) to ensure access to the screw sockets ( 8) below. Latch lock (2) according to one of Claims 1 to 8, characterized in that the covers are locked in the lock housing (2, 3).