EP3662123A1

EP3662123A1 - Motor lock

Info

Publication number: EP3662123A1
Application number: EP18765817.4A
Authority: EP
Inventors: Josef Hölzl
Original assignee: Maco Technologie GmbH
Current assignee: Maco Technologie GmbH
Priority date: 2017-09-04
Filing date: 2018-08-28
Publication date: 2020-06-10
Anticipated expiration: 2038-08-28
Also published as: DE102017120314A1; EP3662123B1; PL3662123T3; WO2019042993A1

Abstract

A motor lock, which can be actuated manually or in a motor-operated manner, comprises a locking bar, which can be moved between a locking and a release position, an actuating element for manually adjusting the locking bar and a drive motor for adjusting the locking bar in a motor-operated manner. A gear element that can be driven by the drive motor can be displaced between at least one coupling position, in which there is a driving coupling between the drive motor and the locking bar, and a decoupling position, in which the driving coupling between the drive motor and the locking bar is interrupted. The motor lock has a control device that is designed to adjust the gear element for a motor-operated adjusting of the locking bar into the at least one coupling position and for a manual adjusting of the locking bar into the decoupling position.

Description

motor lock

The present invention relates to a motor lock, which can be actuated both manually and by motor, with at least one locking bar, which is switchable between a locking and a release position, an adjusting element for manually switching the locking bolt, and a drive motor for motorized switching of the locking bolt.

Such engine locks are used to lock and unlock doors, gates and windows optionally. In the locking bar, it may be z. B. act around a sliding lock pin or a pivotable locking hook. To increase the burglary protection, a motor lock can also be equipped with several, individually or jointly reversible Sperrriegeln. As the drive motor, in particular, an electric motor can be provided, which acts via a transmission device on the movable locking bolt.

A disadvantage of known engine locks that the actuator is relatively stiff, so for manual operation, a relatively high

Force is required. This is due in particular to the fact that, in the case of a manual actuation, a power transmission takes place from the moving locking bolt to the shaft of the drive motor, that is, the rotor of the drive motor as well as the possibly present components of the motor transmission are "rotated". From the user's point of view, the powerful actuation of the actuating element is annoying. If the acting between the drive motor and the locking latch gear device is self-locking, the engine lock is not manually operable at all. It is an object of the present invention to provide a motor lock of the type mentioned in such a way that the manual operation can be done with little effort. The object is achieved by a motor lock with the features of claim 1.

According to the invention, a drivable by the drive motor gear element between at least one coupling position, in which a drive-effective coupling between the drive motor and the locking bar, and a decoupling position, in which the drive-effective coupling between the drive motor and the locking bolt is interrupted, adjustable, wherein the engine lock a Having control device which is adapted to provide the transmission element for a motorized switching of the locking bolt in the at least one coupling position and to provide for a manual switching of the locking bolt in the decoupling position.

The existing between the drive motor and the locking latch operative connection is thus interrupted in a manual lock operation. Therefore, there is no force transmission to the drive motor during manual locking or unlocking, whereby the actuator can be actuated with little effort. In a motorized lock actuation, however, the transmission element located in the coupling position ensures that the driving force of the drive motor is transmitted in the desired manner to the locking bolt.

Preferably, the control device is designed to put the transmission element into the decoupling position again after each motor-driven changeover of the locking bolt. The drive-effective coupling between the drive motor and the locking bolt is thus produced only when it is necessary, that is, when a motorized changeover is to take place. This ensures that the user can operate the motor lock manually at any time with little effort.

The transmission element may be adjustable in two different coupling positions, in each of which there is a drive-effective coupling between the drive motor and the locking bolt, wherein the decoupling position between the two coupling positions, so to speak, in a middle position, is. This opens up the possibility of providing a different transmission path for the motorized locking than for the motorized unlocking. In each of the two coupling positions, one of the two transmission paths is active while the other is inactive. From the decoupling position, the transmission element can be moved into both the first and the second coupling position, without first reaching the respective other coupling position. The control device may be an electronic control device which controls a correspondingly coupled to the transmission element electromagnetic actuator. In particular, the control device can be designed to adjust the transmission element by actuating the drive motor between the at least one coupling position and the decoupling position. It is then no own drive for adjusting the transmission element necessary. Rather, the placement of the transmission element in the coupling position and the switching of the locking bolt in the locking position by means of the drive motor can be carried out immediately following one another during a continuous engine operation. Likewise, the placement of the transmission element in the at least one decoupling position and the switching of the locking bolt into the unlocking position by means of the drive motor can take place directly consecutively during a continuous engine operation.

An embodiment of the invention provides that the transmission element cooperates via a driver with the locking bolt, which on the one hand in the It is capable of acting on a movement of the transmission element in the direction of at least one coupling position operatively connected to the locking latch control, and on the other hand by a movement of the transmission element in the direction of the decoupling position in a spaced apart from the control retraction position is movable. By retracting the driver from the control, the drive-effective connection between the drive motor and the locking bar is separated and takes place in the manual

Lock operation no power transmission from the locking bolt on the drive motor. By moving the gear member in the opposite direction of the driver can be brought back to the control. As soon as it abuts against this, there is a drive-effective coupling between the transmission element and the control in the corresponding direction.

Preferably, the driver located in the retracted position is arranged completely outside the movement path of the control element. In the case of a manual lock actuation, the control element can thus be moved with the locking bolt in any desired manner, without any force being transmitted to the drive motor. The control can move freely between its, for example, defined by stops, extreme positions.

It can be provided that the locking bolt can be moved by displacement of a transmission element, wherein the driver is arranged on the transmission element and is able to act on a movement of the transmission element in the direction of the coupling position, the transmission element directly or indirectly. The transmission element can be a displaceable plate, rod or the like, which can be coupled to one or more drive rod elements and is provided for controlling the locking bolt, for example via one or more pivot bolts. By means of such a transmission element, it is possible in a simple manner, for locking the motor lock not only the locking bolt, but also further locking elements, z. B. the locking bolt of secondary locks of the engine lock to put in the locked position.

According to a further embodiment of the invention, the transmission element is rotatable about an axis of rotation and the driver is formed by a relative to the axis of rotation axially projecting from the transmission element projection. This allows a particularly simple construction. The rotatable gear element can be, for example, a gear that meshes with another gear of a transmission device associated with the drive motor. Preferably, the projection is formed integrally with the rotatable gear element.

A special embodiment of the invention provides that the projection in an at right angles to the axis of rotation extending cutting plane has an at least substantially circular sector-shaped cross-section. The obliquely mutually extending surfaces may in this case form loading surfaces which run in each case after a rotation of the gear element in the movement path of the control substantially transverse to the direction of displacement of the control, which is favorable in terms of power transmission. According to a further embodiment of the invention, respective control elements are arranged on both sides of the axis of rotation, wherein one of the control elements can be acted upon by the driver in a first direction of rotation when the transmission element is rotated and the other control element can be acted upon by the carrier in an opposite second direction of rotation when the transmission element is rotated is. Starting from a middle position can by

Turning the transmission element thus depending on the direction of rotation either the one or the other control element are acted upon.

The controls can each be designed as a flat iron with a projecting from a flat side, in particular end-side, admission approach his. The admission approaches can in particular face each other. Furthermore, the controls may be slidably mounted in a lock housing of the engine lock. It can be provided that the movement path of the first control element runs at a predetermined distance parallel to the movement path of the second control element and the carrier located in the retraction position is arranged completely in the intermediate space between the two movement paths. By turning the gear element into the center position corresponding to the retraction position of the driver, a complete interruption of the operative connection between the drive motor and the control elements can thus be brought about.

According to a further embodiment of the invention, the first control element and the second control element are to be acted upon in the same displacement direction, wherein one of the control elements is fastened directly to a displaceable transmission element or integrally formed therewith, and the other control element is operatively connected to the transmission element via a conversion device is, which causes a direction reversal with respect to the displacement of the respective control element and the transmission element. Thus, both controls can be designed for loading in the same direction, wherein the driver selectively causes an extension or retraction of the locking bolt, depending on which control is applied.

The actuating element is preferably a lock cylinder which can be actuated by means of a key and has a rotating locking nose. The closing lug can in this case act on the same transmission or control element as a driver arranged on the transmission element. In principle, the actuating element can also be a pusher. A special embodiment of the invention provides that the motor lock comprises a base lock body on which the adjusting element and the locking bolt are mounted, and that the drive motor is fixed to an additional lock body which is releasably coupled to the base lock body. Such a motor lock can be converted in a simple manner to a solely manually operable lock by the additional lock body is released from the base lock body. Similarly, an existing manually operable lock can be redesigned by coupling the additional lock body to the base lock body to a motor lock.

Further preferred embodiments of the invention can be found in the dependent claims, the description and the accompanying drawings. The invention will be described in more detail by means of embodiments with reference to the drawings.

Fig. 1 is a side view of a motor lock according to the invention with the cover plate removed.

Fig. 2 is a partial perspective view of an inventive

formed motor lock.

FIG. 3 shows a transmission device of the motor lock from FIG. 1 from a side opposite FIG. 1.

FIG. 4 is a perspective view of the transmission device of FIG. 3. FIG.

The illustrated in Fig. 1, designed according to an embodiment of the invention engine lock 1 1 has a base lock housing 12, on which in principle Known manner a follower 13 for a hand-operated, not shown pusher, a latch 15 and a locking latch 17 are mounted. The locking bolt 17 is convertible between a locking position and a release pitch and shown in Fig. 1 in the release pitch. In a recess 19 of the base lock housing 12, a lock cylinder, not shown, is used, which is actuated by turning a key. By an operation of the lock cylinder of the locking bar 17 is manually switched from the release division into the locking position and vice versa. In addition to this manual change over the lock cylinder can also be a motorized conversion of the locking bolt 17 done. For this purpose, a drive motor 20 is provided, which is accommodated in an additional lock housing 21 and is preferably designed as an electric motor. An electronic control device 25 for driving the drive motor 20 is also accommodated in the additional lock housing 21. Furthermore, there is a drive motor 20 associated with the transmission device 27 in the additional lock housing 21st In the illustrated embodiment, the auxiliary lock housing 21 is releasably coupled to the base lock housing 12 so that it can be removed as needed to use the motor lock 1 1 as a manual lock. In principle, the additional lock housing 21 could also be embodied integrated with the base lock housing 12. For better visibility of the components of the engine lock 1 1, the base lock housing 12 and the additional lock housing 21 are shown in Fig. 1 without the cover plate usually provided.

Fig. 2 shows the region of the recess 19 in an enlarged perspective view. The locking bolt 17 is drive-coupled via a pivot lever arrangement 34 with a plate-shaped transmission element 30, which in the lock housing 12 in the direction of the double arrow 35 slidably is stored. A change lever 36 is slidably guided on the cover plate, not shown, and coupled to the transmission element 30.

A retaining pin 38 is fastened to a lower end region of the transmission element 30, via which a first control element 40 mounted displaceably in the additional lock housing 21 (FIG. 1) can be coupled to the transmission element 30. For better visibility, the first control element 40 is shown separately from the transmission element 30 in FIG. 2, so that there is no engagement between the retaining pin 38 and the associated receptacle 43 of the first control element 40. If the retaining pin 38, however, is in the receptacle 43, the locking bar 17 can be switched by moving the first control element 40 between the locking position and the release position.

A second control element 45 is arranged at a distance from the first control element 40 and likewise mounted so as to be displaceable in the additional lock housing 21. In the illustrated embodiment, both the first control element 40 and the second control element 45 are designed as elongate flat iron. The second control element 45 serves to act on a drive element 50 which is displaceably mounted on the base lock housing 12 and of a drive lever 53 which is coupled to the transmission element 30 via a control lever 55. For linearly displaceable guidance of the drive element 50, a guide projection 56 is arranged on this, which is slidably guided in an elongated recess of the cover plate, not shown. A first end 57 of the drive element 50 protrudes into the path of movement of a closing lug of the lock cylinder, not shown, and can be acted upon by this. The drive lever 53 projects with its free end also into the path of movement of the locking lug. A second end 59 of the drive element 50 serves to act on a securing transmission lever 60, by means of which a securing element, not shown, can be changed over from a securing position into an unlocking position. The securing element prevents switching of the locking bolt 17 in the locking position when it is in the securing position.

If due to a key operation of the lock cylinder whose locking lug rotates counterclockwise, it first acts on the first end 57 of the drive element 50 and pushes it upwards. As a result of this movement, the second end 59 of the drive element 50 acts on the safety transmission lever 60 and pivots it in such a way that the safety element is extended into its release position. As a result, the transmission element 30 can move freely. In the course of the movement of the drive element 50, a driver section 61 formed in the region of the first end 57 acts on the drive lever 53 and likewise moves it upwards. As a result, the transmission element 30 is moved downward. As a result, a locking of the motor lock 1 1 is effected by a key actuation of the lock cylinder in the counterclockwise direction.

By turning the key in the lock cylinder in the clockwise direction of the change lever 36 is displaced upward, wherein the transmission element 30 is raised and the engine lock 1 1 is unlocked again. An unlocking of the lock 1 1 by lifting the transmission element 30 can also be done via the follower 13 (Fig. 1). An unillustrated embodiment of the invention provides that the loading of the backup transmission lever 60 and the drive lever 53 is effected by a pusher, knob or handle instead of by a lock cylinder. Via the two control elements 40, 45, a motorized switching of the locking bolt 17 between the locking position and the release position can take place, as will be explained in more detail below. As can be seen in FIGS. 3 and 4, the drive motor 20 has a drive shaft 62, by means of which a worm wheel 63 can be driven, which meshes with an intermediate gear 67. The intermediate gear 67 has an outer sprocket 68 and a recognizable only in rear view inner sprocket 69. While the outer sprocket 68 meshes with the worm wheel 63, the inner sprocket 69 meshes with a gear member 70 in the form of another gear.

An axially projecting projection 75 is formed on a side face 73 of the gear element 70 and, as shown, has a substantially circular sector-shaped cross section. When the gear member 70 is in a decoupling position or center position as shown in FIG. 3, the projection 75 is disposed between the two control members 40, 45. Respective urging lugs 76, 77 of the control elements 40, 45 facing each other protrude into the path of movement which the projection 75 executes upon rotation of the gear element 70 about an axis of rotation 78. When the transmission member 70 is rotated counterclockwise from the center position shown in FIG. 3, after overcoming the apparent clearance, the projection 75 abuts the urging lug 76 of the first control member 40 and upwardly displaces it in the direction of the arrow 80 the transmission element 30 is raised and the locking bolt 17 is moved to the release position.

When the transmission member 70 is rotated clockwise from the center position shown in FIG. 3, after overcoming the clearance, the projection 75 abuts against the urging lug 77 of the second control member 45 and upwardly displaces it in the direction of the arrow 80, thereby causing the same Secured element in the armed position, the transmission element 30 is lowered and the locking bar 17 is moved to the locking position. In this way, it is possible to lock the engine lock 1 1 by a corresponding control of the drive motor 20 and unlock.

When the gear member 70 is in the center position and the projection 75 is accordingly spaced from the loading lugs 76, 77, there is no driving coupling between the drive motor 20 and the locking latch 17. Upon actuation of the lock cylinder, the drive shaft 62 of the drive motor 20 thus not rotated, resulting in a smooth operation of the lock cylinder. The control device 25 is designed to put the transmission element 70 back into the middle position according to FIG. 3 after each motor-driven changeover of the locking bolt 17, so that a smooth manual actuation of the engine lock 11 is possible at any time.

LIST OF REFERENCES:

1 1 engine lock

12 basic lock housing

13 pusher nut

15 latch

17 locking bolt

19 recess

20 drive motor

21 Additional lock housing

25 electronic control device

27 gear device

30 transmission element

34 pivot lever arrangement

35 double-headed arrow

36 change lever

38 retaining pin

40 first control

43 recording

45 second control

50 drive element

53 drive lever

55 control lever

56 Leadership lead

57 first end

59 second end

61 driver section

60 fuse transfer lever

62 drive shaft

63 worm wheel

67 idler gear

68 outer sprocket

69 inner sprocket

70 transmission element

75 advantage

76, 77 Assignment Approach

78 rotation axis

80 arrow

Claims

claims

Motor lock (11), which can be operated both manually and by motor

at least one locking bolt (17) which can be moved between a locking position and a release position,

an actuating element for manually switching the locking bolt (17), and a drive motor (20) for motorized switching of the locking bolt (17),

By doing so, that is

a transmission element (70) which can be driven by the drive motor (20) between at least one coupling position, in which there is a drive-effective coupling between the drive motor (20) and the locking bolt (17), and a decoupling position, in which the drive-effective coupling between the drive motor (20 ) and the locking bolt (17) is adjustable, wherein the motor lock (11) has a control device (25) which is adapted to the transmission element (70) for a motorized switching of the locking bolt (17) in the at least one coupling position to ask and to provide for a manual change of the locking bolt (17) in the decoupling position.

Motor lock according to claim 1,

By doing so, that is

the control device (25) is designed to return the gear element (70) to the motor after each motorized changeover of the locking bolt (17)

To provide decoupling position. Motor lock according to claim 1 or 2,

By doing so, that is

the transmission element (70) is adjustable in two different coupling positions, in each of which a drive-effective coupling between the drive motor (20) and the locking bolt (17), wherein the decoupling position is located between the two coupling positions.

Motor lock according to at least one of the preceding claims, characterized in that

the control device (25) is designed to adjust the transmission element (70) by driving the drive motor (20) between the at least one coupling position and the decoupling position.

the transmission element (70) interacts with the locking bolt (17) via a driver (75) which, on the one hand, is capable of controlling, with a movement of the transmission element (70) in the direction of the at least one coupling position, a control element operatively connected to the locking bolt (17) ( 40, 45), and on the other hand by a movement of the transmission element (70) in the direction of the decoupling position in a spaced from the control element (40, 45) retreat position is movable.

Motor lock according to claim 5,

By doing so, that is

the driver (75) located in the retracted position is arranged completely outside the movement path of the control element (40, 45). Motor lock according to claim 5 or 6,

By doing so, that is

the locking bolt (17) is displaceable by displacement of a transmission element (30), wherein the driver (75) is arranged on the transmission element (70) and is able to move the transmission element (70) in the direction of the coupling position when the transmission element (70) moves. 30) directly or indirectly.

Motor lock according to at least one of claims 5 to 7,

By doing so, that is

the transmission element (70) is rotatable about an axis of rotation (78) and the driver (75) is formed by a projection (75) projecting axially from the transmission element (70) with respect to the axis of rotation (78).

Motor lock according to claim 8,

By doing so, that is

the projection (75) has an at least substantially circular-sector-shaped cross section in a sectional plane extending at right angles to the axis of rotation (78).

10. Motor lock according to claim 8 or 9,

By doing so, that is

respective control elements (40, 45) are arranged on both sides of the rotation axis (78), one of the control elements (40, 45) being able to be acted upon by the driver (75) in a first direction of rotation when the transmission element (70) rotates, and the other control element a rotation of the transmission element (70) in an opposite second direction of rotation by the driver (75) can be acted upon.

11. Motor lock according to claim 10,

By doing so, that is

the path of movement of the first control element (40) runs at a predetermined distance parallel to the path of movement of the second control element (45) and the carrier (75) located in the retracted position is arranged completely in the space between the two movement paths.

12. Motor lock according to claim 10 or 11,

By doing so, that is

the first control element (40) and the second control element (45) are to be acted upon in the same displacement direction, one (40) of the control elements being fastened directly or integrally with a displaceable transmission element (30) and the other control element (45) via a conversion device (53, 55) with the transmission element (30) is operatively connected, which with respect to the displacement directions of the respective control element (45) and the transmission element (30) causes a reversal of direction.

13. Motor lock according to at least one of claims 10 to 12,

By doing so, that is

in that the first control element (40) and the second control element (45) are each designed as flat iron with a, in particular end-side, loading attachment (76, 77) projecting from a flat side.

14. Motor lock according to at least one of the preceding claims,

By doing so, that is

the actuator is a key operated by a lock cylinder with a rotating locking lug. Motor lock according to at least one of the preceding claims, characterized in that

the motorized lock (11) comprises a base lock body (12) on which the actuator and the locking bar (17) are mounted, and in that the drive motor (20) is secured to an auxiliary lock body (21) detachably connected to the base Lock body (12) is coupled.