CN111183265B

CN111183265B - Lock with a locking mechanism

Info

Publication number: CN111183265B
Application number: CN201880057419.7A
Authority: CN
Inventors: 金特·布鲁克鲍尔
Original assignee: Maco Technologie GmbH
Current assignee: Maco Technologie GmbH
Priority date: 2017-09-04
Filing date: 2018-08-21
Publication date: 2021-07-06
Anticipated expiration: 2038-08-21
Also published as: DE102017120316A1; EP3655601A1; WO2019042819A1; EP3655601B1; PL3655601T3; CN111183265A

Abstract

The lock comprises at least one locking element, at least one securing element and an operable actuating element. The at least one locking element is adjustable between a locked position and an unlocked position. The at least one securing element is adjustable between a securing position and a unsecured position. The operable actuating element is used to adjust a locking element and/or other movable functional elements of the lock. The locking element is held in the unlocked position by the securing element in the securing position and is spontaneously adjustable from the unlocked position to the locked position when the securing element is in the unsecured position. By actuating the actuating element in the closing direction, the securing element can be moved in the direction of the securing-released position, and furthermore the locking element can be moved in the direction of the locking position.

Description

Lock with a locking mechanism

Technical Field

The present invention relates to locks, and more particularly to door locks. The lock has at least one locking element, at least one securing element, and an actuating element operable for adjusting the locking element and/or other movable functional elements of the lock. The at least one locking element is adjustable between a locked position and an unlocked position. The at least one securing element is adjustable between a securing position and a unsecured position. Wherein the locking element is held in the unlocked position by the securing element in the securing position and wherein the locking element is spontaneously adjustable from the unlocked position to the locked position when the securing element is in the unsecured position.

Background

This type of lock is commonly referred to as an "auto lock". The automatic lock spontaneously locks when the door leaf is closed. That is, the user merely swings the door leaf closed, and in this case, the spontaneous locking is triggered as soon as the closing door leaf assumes the closed position in the door frame. At this time, the locking member is automatically protruded and protruded into the corresponding recess of the door frame, thereby locking the door. The locking element can be coupled to a mechanical or electrical drive, for example, which automatically projects the locking element when the door leaf reaches its closed position. In particular, the locking element may be preloaded into the locking position due to gravity and/or by means of a spring force. The locking element may be, for example, a pushable safety catch or a swivel catch. A single lock may also include multiple locking elements.

The securing element can be preloaded in the securing position to prevent an accidental locking when the door leaf is opened. The change of the securing element from the securing position into the unsecured position can be effected, for example, by magnetic forces. When the door leaf is fully closed, a magnetic force is exerted on the security element by a magnet provided on the door frame.

The challenge is therefore to ensure a reliable and secure spontaneous locking of the lock at all times. In particular, with existing automatic locks, there is a risk that: the locking element does not or not fully protrude and therefore results in an insufficient locking. This situation may be: when the locking is triggered correctly, the projecting locking element wedges or preloads against the recess of the door frame side and does not project completely into the recess, since the locking element and the corresponding recess of the door frame side are not positioned exactly with respect to each other. When the locking element "hovers" in this way, the security of the door against unauthorized opening is insufficient.

Disclosure of Invention

The invention aims to provide a lock which provides better protection against illegal opening.

This object is achieved by a lock having the features of the embodiments.

According to the invention, by operating the actuating element in the closing direction, the securing element can be moved in the direction of the unsecured position and, furthermore, the locking element can be moved in the direction of the locked position. This makes it possible for the user to "relock" the lock consciously, i.e. for the sake of security, after triggering the spontaneous locking, a further locking process is also initiated, in which, if necessary, a greater force is applied to the locking element than during the spontaneous locking, so that a subsequent complete extension of the locking element is achieved if necessary. By moving both the securing element into the unsecured position and the locking element into the locked position when the actuating element is operated in the closing direction, a re-locking of the lock is achieved independently of the position of the securing element, in particular even if no spontaneous locking has been achieved because the securing element has not been extended into the unsecured position. By achieving relocking, the security of a door having a lock of the present invention is greatly improved.

Preferably, the activation element is actuated such that the securing element and the locking element can be moved simultaneously, sequentially or with an overlap in time. That is, preferably, a common transformation process is performed. Particularly preferably, the securing element can be moved first and then the actuating element by the operation of locking the actuating element.

By actuating the actuating element, the securing element can be locked in the securing position when the latter is reached, so that it cannot be moved automatically into the securing position, for example by elastic forces or by gravity, and does not hinder the subsequent unlocking process.

It may be provided that the locking element is movable into the unlocked position by operating the actuating element in the opening direction. The actuating element can thus be used both for locking and for unlocking the lock.

Preferably, the actuating element can be operated manually, so that the user can effect the relocking in a simple and quick manner. Manual operation achieves application of an increased operating force to the actuating element, if required. When the user feels more resistance, it may, for example, increase the force exerted on the actuation element. In contrast, in the case of the known automatic locks, the force acting on the locking element is fixedly given and cannot be increased later. In general, motorized operation of the actuation element of the lock of the invention can also be performed, for example, by remote control.

The actuating element may be a key cylinder operable by a key and having a rotatable lock cam. For subsequent locking of the lock, the user may turn the key in the usual manner. Alternatively, the actuating element can be embodied as a lever handle, which can be pivoted upward, for example, for locking. The lock of the invention can also have a lock cylinder and additionally a handle. The lock cylinder then forms the actuating element, while the handle serves for unlocking.

The securing element and the locking element may be directly or indirectly coupled (or couplable) to the respective movable drive element. These drive elements can be touched by the lock cam of the lock cylinder. This achieves a particularly simple construction. The movable drive member may be a rod, rail, plate, or the like, slidably and, if desired, pivotably disposed on the body of the lock. In particular, it is conceivable to move it transversely to the adjustment direction of the locking element.

The drive element can be arranged such that the lock cam of the lock cylinder, upon a rotational movement during closing, first only touches the drive element coupled (or couplable) to the securing element and then the drive element coupled (or couplable) to the locking element. It is thereby ensured that the securing of the locking element has been released when the necessary force is applied to the locking element to extend it.

The lock of the present invention may include a safety actuating lever. The bumper lever can be pivoted by operating the actuating element and can be arranged such that the securing element can be touched by the free lever end of the bumper lever in the direction of its end position in the unsecured position. The other lever end of the bumper beam can likewise be a free lever end, so that it can be touched, for example, by the movable drive element. Alternatively, the further lever end can also be coupled to the drive element by means of a hinge or the like. The safety gear lever allows a simple changeover between the actuating movement of the drive element, which is switched on by the actuating element, and the extension movement of the safety element, in particular in the case of the actuating movement and the extension movement being oriented in different directions, i.e. for example at right angles to one another.

Preferably, the safety gear lever is preloaded in a direction in which it does not touch the safety element. As a result, an accidental disarming (for example in the case of an open door leaf) and a possible subsequent extension of the locking element can be avoided.

It can be provided that the drive element provided for pivoting the safety gear lever can then enter the receptacle of the safety gear lever when the safety gear lever is in the release position in which it touches the safety element, in particular the drive element can be clamped in the receptacle. The receptacle may be a blind hole or a through hole. By clamping the drive element in the receptacle, the safety gear lever can be fixed and the safety element can thus be locked in the safety-released position. In this way, the securing element is prevented from returning to the securing position in the case of a locked lock, so that a later unlocking process can be hindered.

The lock of the present invention may include a lock actuation lever. The locking transmission lever can be pivoted by operating the actuating element and has a free lever end with a guide runner. Wherein the projection of the transmission element, which is drivingly coupled with the locking element, is guided in the guide runner. In particular, the projection may be a round bolt mounted on the transmission element. The guide runner allows a controlled shifting of the movement between the locking transmission lever and the (e.g. plate-shaped) transmission element in a simple and reliable manner. The other lever end of the locking transmission lever can likewise be a free lever end, so that it can be touched, for example, by the movable drive element. Alternatively, the further lever end can also be coupled to the drive element by means of a hinge or the like.

According to a special design of the invention, a drive motor is provided for motor driving for adjusting the locking element. The drive motor can be coupled to the drive rod, to a transmission element provided for coupling to the drive rod or to the actuating element by means of a transmission device to achieve motorized locking and unlocking.

The lock may include a base lock body on which a locking member, a fuse member, and an actuating member are disposed. Wherein the drive motor is fastened to an additional lock body which is detachably coupled to the base lock body. Due to the detachable coupling, a lock designed in this way can optionally be configured and used as an automatic lock or as a motor lock.

The invention also relates to a door with the above-described lock arranged in the door leaf and a frame-side triggering element arranged in the door frame. The safety element of the lock can be moved spontaneously from its safety position into the safety-released position when the door leaf is closed by means of a magnetic attraction or repulsion force acting between the safety element and the frame-side triggering element. The advantageous embodiments and advantages described herein for the lock of the invention are equally applicable to the door of the invention.

Improvements of the invention can also be taken from the dependent claims, the description and the drawings.

Drawings

The invention will be described below by way of example with reference to the accompanying drawings.

Figure 1 is a side view of the lock of the present invention.

FIG. 2A is an enlarged partial perspective view of the latch of FIG. 1.

FIG. 2B is a further enlarged schematic view of a portion of the lock shown in FIG. 1.

Fig. 3 is another schematic view of the portion of the lock shown in fig. 2 with certain components removed for purposes of illustration in accordance with the present invention.

Fig. 4 is another enlarged partial side view of the lock according to the invention, with the other components removed again with respect to fig. 3.

Fig. 5 is another enlarged partial side view of the lock of the present invention with the other components removed relative to fig. 4.

Detailed Description

A lock 11 designed according to one embodiment of the invention is shown in fig. 1 with a lock housing 12. In a manner known per se, a latch (druckeruss) for a manually operable handle (not shown), a locking bolt 15 and a locking element 17 are provided on the lock housing 12. The locking element 17 is movable between a locking position and an unlocking position, the unlocking position of which is shown in fig. 1. Instead of the movable locking element 17, a pivotable locking hook or the like can also be provided. Furthermore, the lock housing 12 has a recess 19, in which recess 19 an actuating element (Stellelement) is arranged, which takes the form of a key cylinder 25 that can be operated by a key. In order to achieve better visibility of the components of the lock 11, the cover plate, which is usually provided on the lock housing 12, is not shown in fig. 1.

Fig. 2A and 2B show a partially enlarged perspective view of the lock 11 in fig. 1. The locking element 17 is drivingly coupled to a plate-shaped transmission element 30 via a pivot lever 34, the plate-shaped transmission element 30 being movably arranged in the lock housing 12 in the direction of the double arrow 20. The transmission element 30 is urged in the direction of the arrow 38 under the influence of its weight, so that the locking element 17 is preloaded in the direction of the locking position. The transmission element 30 has a coupling 40 at both ends for coupling with a drive rod, not shown in fig. 1, 2A and 2B, by means of which the transmission element 30 can be coupled with a secondary lock of the lock 11, also not shown. The switching lever 44 can be guided by the guide pin 41 for movement on a cover plate, not shown, and can be coupled to the transmission element 30 by means of an assembly of the elongated hole 42 and the coupling pin 43.

The lock 11 may be configured as a so-called automatic lock that locks spontaneously when the door leaf or the like is closed. For this purpose, the lock 11 comprises a securing element 45, which securing element 45 is movably arranged in a housing 46, which is not shown in fig. 3 to 5. The securing element 45 is adjustable between an extended securing position and an extended arming position, which is shown in fig. 2A, 3 and 4. In this safety position, the safety element 45 forms an undercut with the edge 47 of the transmission element 30 visible in fig. 4 and holds the transmission element 30 in a position associated with the unlocking position of the locking element 17. The securing element 45 is biased in the securing position by means of a spring 49. In this safety position, the locking element 17 is held in the unlocked position.

When the securing element 45 is extended out of the lock housing 12 against the force of the spring 49, the undercut is relieved and the transmission element 30 can fall downwards, so that the locking element 17 is extended into the locking position. The movement of the securing element 45 into the unsecured position can be effected by means of a permanent-magnetic triggering element arranged in the door frame or the like. When the door leaf is closed, the permanent-magnetic triggering element exerts a magnetic force on the at least partially ferromagnetic securing element 45. Thus, when the door leaf is closed, the locking element 17 spontaneously moves to the locking position. In this locking position, the locking element 17 is locked in engagement with a corresponding recess of the locking plate mounted on the door frame side.

In particular, the mechanism for the spontaneous locking of the lock 11 can be designed as disclosed in EP 2543802 a 2.

Due to the fact that the locking element 17 and the corresponding door-frame-side recess are not positioned exactly with respect to one another, the spontaneous locking of the lock 11 can be hindered, so that the securing element 45 and/or the locking element 17 do not protrude completely or even do not protrude completely. The lock 11 can thus be manually relocked by means of a lock cylinder 25 provided in the recess 19, as explained in further detail below.

In order to achieve manual relocking, a mechanical operative connection between the lock cylinder 25 and the securing element 45 is provided on the one hand, and between the lock cylinder 25 and the locking element 17 on the other hand.

As can be seen in particular in fig. 3 and 4, the operative connection provided between the lock cylinder 25 (fig. 1) and the securing element 45 comprises a drive element 50 which is mounted movably on the lock housing 12, and a securing lever 52 which is mounted pivotably about a first pivot axis 51 on the lock housing 12. In order to guide the drive element 50 linearly and movably, a guide projection 53 is provided on the drive element 50, which guide projection 53 slides in an elongated groove of a cover plate, not shown. The first end 55 of the drive element 50 projects into the path of movement of the locking cam of the lock cylinder 25, which is indicated in fig. 4 by a dashed line 57. The second end 59 of the actuating member 50 is adjacent the bumper actuator lever 52. In the initial position of the drive element 50 shown in fig. 4, a gap 60 is also present between the second end 59 of the drive element 50 and the safety gear lever 52.

As shown, the safety transmission lever 52 has a first lever arm 61 facing the drive element 50 and a second lever arm 62 facing the safety element 45. The spring element 65 biases the safety gear lever 52 into the locking position shown in fig. 3 and 4. The first lever arm 61 of the safety lever 52 now rests against the stop 70, as can be seen in particular in fig. 2B. When the safety actuator lever 52 is in the latched position, a slight gap 72 exists between the second lever arm 62 and the safety element 45.

The operative connection provided between the lock cylinder 25 and the locking element 17 (as can be seen in particular in fig. 5) comprises a locking transmission lever 75. The locking transmission lever 75 is mounted on the lock housing 12 so as to be pivotable about a second pivot axis 77. In the illustrated embodiment of the lock 11 according to the invention, the second swing axis 77 extends parallel to the first swing axis 51. An actuating lever 79 is hinged to one end of the lock transmission lever 75. The actuating lever 79 projects with its free end into the path of movement of the locking cam indicated by the line 57. A guide runner 80, which is open on one side, is provided on a branch 82 of the locking transmission lever 75 facing away from the drive lever 79. The guide runner 80 has a curved extension. The guide link 80 interacts with a control lug 83 fastened to the transmission element 30.

When the lock cam is rotated counterclockwise along the circle defined by line 57 as a result of a key operation on the key cylinder 25, the lock cam first contacts the first end 55 of the driver element 50 and presses this first end 55 upward in the direction of arrow 85. As a result of this movement, the second end 59 of the drive element 50, after passing through the gap 60, touches the first lever arm 61 of the safety gear lever 52 and pivots the first lever arm 61 counterclockwise in the direction to the unlatched position, overcoming the force of the spring element 65. As a result of this pivoting movement, the second lever arm 62 of the safety gear lever 52 touches the safety element 45 and presses the safety element 45 against the force of the spring 49 in the direction of the extended safety release position. The engagement with the edge 47 is thereby released, so that the transmission element 30 can move freely. During this pivoting movement of the safety gear lever 52, the second end 59 of the drive element 50 enters the groove 87 (fig. 2B). The groove 87 is arranged on the first lever arm 61 of the safety gear lever 52 and forms a receptacle for the second end 59 of the drive element 50. The second end 59 of the drive element 50 is clamped in the groove 87 so that the drive element 50 does not return to the initial position even when the locking cam no longer touches the first end 55 of the drive element 50.

During the movement of the drive element 50, a driven portion 89 (fig. 2A) arranged in the region of the first end 55 touches the drive lever 79 and likewise moves the drive lever 79 in the direction of the arrow 85. Thereby, the lock transmission lever 75 pivots counterclockwise. At the same time, the control projection 83 is pressed downward due to the movement of the guide runner 80, so that the transmission element 30 is also moved downward. As a result, the lock 11 can be locked by key operation of the lock cylinder 25 even when the magnetic force is not sufficient to extend the security element 45 and/or the gravity force is not sufficient to move the transmission element 30 downwards.

By rotating the key clockwise in the lock cylinder 25, the switching lever 44 can be moved in the direction of arrow 90 (fig. 1), wherein the transmission element 30 will be lifted and the lock 11 unlocked again. At this time, the control projection 83 is pressed against the wall of the guide chute 80, and thereby the pivoting of the lock transmission lever 75 in the clockwise direction is achieved. In this way, the drive lever 79 is pressed downward in the direction opposite to the arrow 85, and the drive lever 79, after touching the follower portion 89, causes the drive element 50 to be driven in the same direction. At the same time, the second end 59 of the drive element 50 is released from the grip with the slot 87. The spring 49 then presses the securing element 45 back into the securing position, so that the securing lever 52 (under the force of the spring element 65) is also pivoted back into the locking position. The unlocking of the lock 11 by raising the transmission element 30 can also be carried out by means of the latch 13.

An embodiment according to the invention, which is not shown, is also possible in which the contact of the safety gear lever 52 and the locking gear lever 75 can be achieved by a lever handle, a knob or a knob instead of a lock cylinder.

The lock 11 may also be embodied as a motor lock. The motor lock has a drive motor for motor-driven adjustment of the locking element 17. In particular, an additional lock housing, not shown, may be provided. The additional lock housing is detachably coupled to the lock housing 12 and in it the drive motor and, if necessary, the associated transmission elements can be placed.

One aspect of the lock 11, which is independent of the mechanical operative connection between the lock cylinder 25 and the securing element 45 or the locking element 17, also relates to the supporting element 95 visible in fig. 2A. The support element 95 is mounted on the transmission element 30 and forms a stop for the switching lever 44. The switching lever 44 is held in the position shown in fig. 2A, in which the coupling pin 43 is located at the lower end of the elongated hole 42, by a support member 95. When unlocking, the latch cam of the lock cylinder 25 presses the switching lever 44 upward, thereby raising the transmission element 30. Due to the fixing of the switching lever 44 in the upper position, the locking pin 15 as well as the locking pin of the secondary lock are held in the retracted position, so that the lock 11 is in the daytime position.

When the support element 95 or a part thereof is removed from the transmission element 30 (for example by unscrewing), the switching lever 44 will fall downwards until the coupling pin 43 abuts on the upper end of the elongated hole 42. This results in the locking pin 15 located on the lock housing 12 being extended and being controllable by the latch 13.

Reference numerals:

11, locking;

12 a lock housing;

13 latching;

15 lock pins;

17 a locking element;

19 a recess;

20 a bidirectional arrow;

25 lock cylinders;

30 a transmission element;

34 oscillating the lever member;

38 arrows;

40 a coupling portion;

41 a guide pin;

42 long holes;

43 a coupling pin;

44 a switching lever;

45 a safety element;

46 a housing;

47 sides;

49 springs;

50 a drive element;

51 a first swing shaft;

a 52-insurance drive lever;

53 guide projection;

55 a first end of a drive element;

57 lines;

59 a second end of the drive element;

a gap of 60;

61 a first lever arm;

62 a second lever arm;

65 a spring element;

70 a stop;

72 gaps;

75 locking the transmission lever;

77 a second swing shaft;

79 drive the lever;

80 a guide chute;

83 control projection;

85 arrow heads;

87 grooves;

89 a driven part;

90 arrows;

95 support the elements.

Claims

1. Lock (11), in particular door lock, comprising:

at least one locking element (17), the at least one locking element (17) being adjustable between a locked position and an unlocked position,

at least one securing element (45), the at least one securing element (45) being adjustable between a securing position and an unsecured position,

and an operable actuating element (25), the operable actuating element (25) being used to adjust the locking element (17) and/or other movable functional elements of the lock,

wherein the locking element (17) is held in the unlocked position by the securing element (45) being in the secured position,

wherein the locking element (17) spontaneously adjusts from the unlocked position to the locked position when the securing element (45) is in the unsecured position,

it is characterized in that the preparation method is characterized in that,

by means of an operation of the actuating element (25) in the closing direction, the securing element (45) can be moved in the direction of the unsecured position and, furthermore, the locking element (17) can be moved in the direction of the locked position.

2. Lock according to claim 1, characterized in that the security element (45) and the locking element (17) can be moved simultaneously, in succession or with an overlap in time by the operation of the actuation element (25).

3. A lock according to claim 1 or 2, characterized in that the securing element (45) can be locked in the unsecured position after reaching the unsecured position by the operation of the actuating element (25).

4. Lock according to claim 1, characterized in that the locking element (17) can be moved into the unlocked position by operation of an actuating element (25) in an opening direction.

5. The lock according to claim 1, characterized in that the actuating element (25) is manually operable.

6. Lock according to claim 5, characterized in that the actuating element (25) is a key-operated lock cylinder with a rotatable lock cam.

7. The lock of claim 6,

the securing element (45) and the locking element (17) are directly or indirectly coupled or couplable to a respective movable drive element (50, 79), which drive element (50, 79) can be touched by the lock cam of the lock cylinder.

8. The lock of claim 7,

the drive element (50, 79) is designed such that, in the rotational movement during closing, the lock cam of the lock cylinder first only touches the drive element (50) coupled or couplable to the securing element (45) and then the drive element (79) coupled or couplable to the locking element (17).

9. The lock of claim 1,

comprises a bumper lever (52), wherein the bumper lever (52) can be pivoted by operating the actuating element (25), and the bumper lever (25) is arranged in such a way that the securing element (45) can be touched by a free lever end of the bumper lever (52) in the direction of the release position.

10. A lock according to claim 9, characterized in that the safety gear lever (52) is pre-stressed in a direction not to touch the safety element.

11. The lock of claim 10,

when the safety gear lever (52) is in the release position in which it touches the safety element (45), an actuating element (50) provided for pivoting the safety gear lever (52) can enter a receptacle (87) of the safety gear lever (52), in particular wherein the actuating element (50) can be clamped in the receptacle (87).

12. The lock of claim 1,

comprising a locking transmission lever (75), which locking transmission lever (75) can be pivoted by operation of the actuating element (25), and which locking transmission lever (75) has a free lever end with a guide runner (80), wherein a projection (83) of the transmission element (30) which is drivingly coupled with the locking element (17) is guided into the guide runner (80).

13. Lock according to claim 1, characterized in that a drive motor is provided for motor-driven adjustment of the locking element (17).

14. The lock according to claim 13, characterized in that the lock comprises a base lock body (12), on which base lock body (12) the locking element (17), the securing element (45) and the actuating element (25) are arranged, the drive motor being fastened on an additional lock body, which is detachably coupled to the base lock body (12).

15. Door with a lock (11) according to any one of claims 1 to 14 arranged in a door leaf of the door and with a frame-side triggering element arranged in a door frame of the door, wherein the securing element (45) of the lock (11) can be moved spontaneously from its securing position to the unsecured position by means of a magnetic attraction or repulsion force acting between the securing element (45) and the frame-side triggering element when the door leaf is closed.