EP3073032B1 - Lock - Google Patents

Description

The invention relates to a lock for doors, compartments and flaps, in particular for retrofitting in doors with a small standard hole, such as a mounting hole of 16 x 19 mm.

For doors, compartments and flaps with a small standard hole, lever locks or locks with longitudinally displaceable traps are provided. In this case, a matching lock cylinder is fixed in the corresponding hole of the door and moves the locking element via an associated mechanism by means of a handle. It is also desirable to use in such doors with small installation hole locks, which allow without a mechanical key - alone through the communication with an electronic control unit - unlocking.

Are known from the DE 20 213 00 886.6 U1 For example, combination locks that have an electronic control unit in the lock housing next to a mechanical area. Only after confirmation of the locking authorization, namely after entering the correct numerical code, the movement of the locking element is possible, namely, in which a lock of the rotary knob is released. For the use of such a combination lock, however, a relatively large rectangular hole in the door is provided to accommodate the entire housing of the combination lock can. However, there is also the need for doors, compartments and flaps with a small standard hole via an electronic control unit to block the movement of the knob and / or release, so that only after proof of a corresponding locking authorization, the movement of the locking element is possible. Furthermore, from the DE 10 2006 039 843 A1 a lock for doors, in particular of cabinets or lockers, known. Object of the present invention is to provide a lock for doors, compartments and flaps with a small standard hole available on the an electronic control unit has, which can lock or unlock the rotational movement of a knob used as a handle.

The invention is achieved with a lock with the features of claim 1. Advantageous embodiments describe the subclaims.

This lock for doors, compartments and flaps is particularly suitable for retrofitting doors with a small standard hole. It comprises a housing with an electronic control unit and with a mechanical closing unit, which are provided at the rear of the door. On the front of the door only serving as a handle knob is arranged and rotatably mounted. In the knob an antenna and a peg-side board are provided. The antenna can exchange signals with a transponder when the transponder approaches the knob in order to detect a corresponding locking authorization of the user of this transponder. The signals picked up by the antenna are forwarded via the pommel-side circuit board to a further rotor-side circuit board and transmitted from this rotor-side circuit board to a main circuit board arranged in the housing behind the door. The rotor-side board interacts directly with the peg-side board, wherein a releasable connection is provided for contacting, for example, a contact via a plug connection or spring contacts. The rotor-side board is arranged at the end of the rotor, which protrudes from the door at the front. The connection parts provided for contacting come into contact outside the door.

In one embodiment, spring contacts disposed on the back side of the pommel side board and contacts disposed on the front side of the rotor side board may come into contact. For forwarding the signals coming from the antenna to the motherboard provided in the housing behind the door, the rotor-side circuit board on the rear side is connected to a flexible connector, for example a cable connector or a foil connector. Such a connector contacts the motherboard with its other end. To connect the connector to allow and ensure safe even with rotational movement of the rotor, is provided for the flexible connector in the stator which receives the rotatable rotor, a slot-shaped opening, which passes through the connector for connection to the rotor-side board. Upon rotational movement of the rotor, the flexible connector has sufficient flexibility to follow this rotational movement without disengaging the connection between the flexible connector and the rotor-side board.

The particular advantage of this invention is that retrofitting with the lock according to the invention is possible for closing a door with a standard hole, for example 16 × 19 mm. On the outside of the door only the knob is to be seen as a control element and in the housing behind the door is the electronic control unit including the necessary batteries. Such a lock can be used for doors of cabinets or lockers, for compartments, flaps or similar furniture, especially for bathrooms, sports facilities or schools.

Fig. 1

eine perspektivische Ansicht eines erfindungsgemäßen Schlosses vor der Befestigung des Knaufs,

Fig. 2

zeigt eine perspektivische Ansicht des Schlosses von Fig. 1 mit Sicht auf das Innere des Knaufs,

Fig. 3

zeigt eine perspektivische Ansicht des Knaufs von Fig. 2 von hinten,

Fig. 4

zeigt eine perspektivische Ansicht auf die Rückseite des Schlosses von Fig. 1,

Fig. 5

zeigt die Rückseite des Schlosses gemäß Fig. 1,

Fig. 6

zeigt die Rückseite des Schlosses gemäß Fig. 1 ohne Falle,

Fig. 7

zeigt die Rückseite des Schlosses gemäß Fig. 1 mit transparent gezeichneter Falle.

The invention will be described below with reference to an embodiment. The drawing includes:

Fig. 1

a perspective view of a lock according to the invention before the attachment of the knob,

Fig. 2

shows a perspective view of the castle of Fig. 1 with a view of the inside of the pommel,

Fig. 3

shows a perspective view of the knob of Fig. 2 from behind,

Fig. 4

shows a perspective view of the back of the castle of Fig. 1 .

Fig. 5

shows the back of the lock according to Fig. 1 .

Fig. 6

shows the back of the lock according to Fig. 1 without a trap,

Fig. 7

shows the back of the lock according to Fig. 1 with transparently drawn trap.

The Fig. 1 shows the lock 10 according to the invention for use in doors with a small standard hole, namely a mounting hole 16 x 19 mm. The door with this installation hole is not shown. The lock 10 comprises a housing 20 in which an electronic control unit 90 and a mechanical closing unit are provided. This housing 20 is located in the assembled state of the lock 10 at the back of the door. The housing 20 consists of a robust base plate 21 with side frame 25 and a sturdy, rear, removable cover 24 made of metal, see Fig. 4 ,

The embodiment of the lock 10 shown here comprises a longitudinally displaceable latch 70 as a locking element. The front end of the latch 70, which engages a strike plate on a door frame, is cranked, visible on the ledge 75 and provided with a ramp 751, which facilitates engagement in the strike plate.

The latch 70 can be moved by means of rotational movement of a mounted in the mounted state on the front of the door knob 30 from the locked position into the unlocked position. Here, the rotational movement of the knob 30 via a rotor 40 which is rotatably disposed in a housing-side stator 44, transmitted to the case 70. However, this rotational movement of the knob 30 is only possible if a user has a lock authorization for this lock 10 is detected, namely the user with a - not shown here - transponder the knob 30 approaches. The signals of the transponder are then forwarded to a control unit 90 arranged in the housing 20. This control unit 90, when using a transponder with the correct identity code, causes the latch 70 to be displaced by rotation of the knob 30. This may be additional be indicated by a light signal. For this purpose, at least one, preferably two-color luminous LED 354 is provided on the peg-side circuit board 35, which lights green when approaching the correct transponder and red when approaching a transponder with false identity code, see Fig. 2 ,

In the Fig. 1 on the one hand the knob 30 can be seen, here still in the disassembled state and on the other hand, the housing 20, which is attached to the back of the door. In order to mount the lock 20, a fixing aid in the form of an adhesive pad 23 can be provided in advantageous manner on the base plate 21 of the housing 20. This adhesive pad 23 facilitates the assembly of the lock 10, since the housing 20 is already pre-fixed to the door during the fastening process. The connection with the door can be effected for example via a screw connection. In this example, the base plate 21 at the respective corners corresponding mounting holes 22. During assembly of the lock 10, the front end of the stator 44 is inserted into the door hole. To then secure the stator 44 to the front of the door, a nut 80 is provided which is screwed onto a thread on the outside of the stator 44. In the assembled state, the door, not shown, would be located between the base plate 21 and the nut 80. On the front of the door protrudes the front end of the stator 44 and in the stator 44, the front end of the rotor 40. At this end face of the rotor 40, a rotor-side board 41 is arranged with contacts 42.

The rotor-side board 41 has a hole for inserting a fastening screw 81 in the center. The fastening screw 81 passes through the entire rotor 40 along its rotor axis 45 and serves to fasten the knob 30. During assembly, this screw 81 can pass through a through-hole 76 of the bolt 70 (please refer Fig. 4 ) and then screwed from the back of the door with the knob 30. In a preferred embodiment, the screw 81 is securely retained in the rotor 40. For this screw the knob 30 has a corresponding threaded hole 352, which in the Fig. 3 you can see.

For torque-transmitting connection between the rotor 40 and the knob 30, the rotor 40 on its outer periphery edge recesses 43, which cooperate with corresponding lugs 341 on the back of the knob 30. The lugs 341 on the back of the knob 30 are preferably arranged so that only one position for screwing the knob 30 is possible. The noses 341 are as out Fig. 3 seen in this embodiment provided on an annular receptacle 34 at the back of the knob. Within this annular receptacle 34, the pommel-side circuit board 35 is arranged with its spring contacts 351, which are provided with corresponding spring contacts 351 of the rotor-side circuit board 41 (shown in FIG Fig. 1 ) interact.

The structure of the knob 30 is best from the Fig. 2 and 3 to see. It consists of a cap-like upper part 31, a ring 32 and a lower part 33. The upper part 31 is preferably made of plastic. The annular frame 312 of the upper part 31 is placed on a peripheral edge 36 of the plate-like lower part 33. The cover 311 of the upper part 31 is preferably made partially transparent, so that light signals can be seen from the outside. For this purpose, the cover 311 may be painted and for a corresponding window image that allows the view of the LEDs 354 or a logo, the paint coating can be removed by laser. In addition, this area may be additionally roughened to see through the light of the LEDs 354, to allow for a better diffusion of the light.

One or more LEDs 354, preferably two-color LED 354, are used. These are located on the peg-side board 35. In the Figures 2 and 3 In addition to the LED 354, the spring contacts 351 and protruding plastic nipple 355 can be seen. These nipples 355 are used solely to prevent rotation. This facilitates the exact positioning of the on-board circuit board 35 within the knob 30. Within the knob 30, an antenna 353 is further provided, here, for example, a copper coil, which transmits on a frequency of 125 KHz. Such antennas 353 can be used with known Transponders (EM4102, EM4200, T5577) communicate. However, other antennas are possible, for example, spirally arranged conductor tracks on the peg-side board 35 (Mifare antennas). Such antennas have a higher safety standard and transmit at frequencies of 13.56 GHz.

The knob-side board 35 is also centrally penetrated by the mounting screw 81. Furthermore, 35 more three screws 332 can be seen in the vicinity of the outer periphery of the pommel-side board. These screws 332 serve to connect the plate-like lower part 33 with the upper part 31 of the knob 30. In the Fig. 3 is the back of the plate-like base 33 can be seen. In this plate-like lower part 33 corresponding screw receptacles 331 are provided, into which the screws 332 are screwed from behind. At the back of the upper part 31 of the knob 30 are also corresponding - not visible here - screw receptacles for the screws 332 and the fastening screw 81 molded in the form of domes.

In addition, a ring 32 made of silicone for the knob 30 is provided in this embodiment. This ring 32 is seated on the frame 312 of the upper part 31 of the knob 30 and has on its outer circumference slip-resistant indentations, which makes the knob 30 in a rotational movement grip.

The assembled knob is 30, as it is in Fig. 3 is shown, fixed on the fastening screw 81 at the front of the door, there is about the spring contacts 351 of the knob-side board 35 and the contacts 42 of the rotor-side board 41 and the in Fig. 4 shown foil connector 92 a connection to the motherboard 91 of the control unit 90, which is housed in the housing 20 at the back of the door. The film connector 92 is connected at its one end to the motherboard 91 and at its other end to the back of the rotor-side board 41. To enable this connection, like the Fig. 4 and Fig. 6 can be seen on the stator 44, a slot-like opening 441 is provided.

If a user approaches the knob 30 with his transponder, an electronic query is activated. The signals which are exchanged between the transponder and the antenna 353 arranged in the knob 30 and forwarded via the contacts 351, 42 and the foil connector 92 to the motherboard 91 of the control unit 90, serve to prove the locking authorization of the transponder used. There is a wireless communication between the transponder and the control unit 90, wherein the control unit 90 retrieves an identification code from the transponder, compares it with a stored identification code and then decides whether the transponder used and thus the person using the transponder has a locking authorization. In this case, the rotational movement of the knob 30 is released to unlock the lock 10.

In the Fig. 5 the lock 10 is shown with the blocked by the longitudinal slide 60 locking member 50, which prevents rotation of the rotor 40 and the knob 30, the latch 70 is in the locked position. The provided on the motherboard 91 processor controls due to a proven locking authorization by means of the right transponder to the motor 94, which has an actuating element 95 in the form of an eccentric pin with a protruding pin. In this case, the actuator 95 is moved in the counterclockwise direction. The associated pin of the eccentric pin engages in an eccentric guide 66 of a slide 65. The slider 65 is moved over the eccentric guide 66 so that a limit switch 96 is actuated twice in one revolution of the eccentric pin 95, namely once in a position "open" and once in a position "closed". This slider 65 is not synchronous with another slide, the longitudinal slide 60. This is with a stop 63 on the circumference of the eccentric pin 95 and is moved by this. In a motor movement, therefore, the longitudinal slide 60 is moved and the locking element 50 is released, from which in the Fig. 5 and 6 only the lower end 51 can be seen. The opposite engagement end of the locking element 50 engages in a radially introduced, crescent-shaped recess on the rotor 40, whereby a Rotation of the rotor 40 and thus rotation of the associated with the rotor 40 knob 30 is prevented. Upon displacement of the longitudinal slide 60, the rear end 51 of the locking element 50 can pass from its support point 62 on the longitudinal slide 60, preferably along a slope 64. The slope 64 has the advantage that already at the beginning of the engine actuation rotation of the knob 30, ie without waiting , is possible. The operated by the slider 65 limit switch 96 turns off the motor 94. The caused by the motor 94 caster of the actuating element 95 leads to the displacement of the longitudinal slide 60 to its end position.

Due to the release of the locking member 50, the rotation of the knob 30 and thus also of the rotor 40 is possible. A provided on the rear end face 47 of the rotor 40 and eccentrically to the rotor axis 45 arranged pin 46 is thereby moved, as in Fig. 6 to see. This pin 46 engages in a recess 73 on the front 71 of the case 70. This recess 73 is in the transparent representation of the bolt 70 in Fig. 7 to see. If, for example, the knob 30 is moved in the clockwise direction, the pin 46 slides from its contact point 733 along a guide surface 731, which is formed by a wall of the recess 73. In this case, the pin 46 retracts the latch 70, ie the latch 70 is moved from the locking position to the unlocked position.

The present lock 10 can be used both in doors with right stop, so also in doors with left stop, since a rotation of the knob 30 in the counterclockwise direction in the same way to unlock the case 70 leads. In this case, the pin 46 moves out of its contact point 733, in this case along a guide surface 732, which is also a boundary wall of the recess 73. This movement also leads to the retraction of the trap 70.

In addition, a two-armed latch 74 is disposed on the latch 70, which is pivotally received in a longitudinal slot 78 of the latch 70. The pivot axis 741 is located as in Fig. 4 to see in one recessed paragraph 75 of the latch 70. The latch 74 serves as a manipulation protection.

If the door is open, no rotation of the knob 30 is necessary to close the door, since the latch 70 automatically moves back into the locked position due to its spring load. A corresponding spring 72 is in Fig. 4 and 5 shown. This spring 72 is arranged in a corresponding longitudinal groove on the rear side 77 of the latch 70 and is supported by the protruding from the case 70 end at a support point, not shown on the housing 20. If the latch 70 is again in the locking position, the rotor 40 is also in its starting position due to the engagement of the rotor-side pin 46 in the falling-side recess 73. In this rotational position engages the engagement end of the locking element 50 in a recess on the rotor 40, as well as the longitudinal slide 60 is moved back into its blocking position due to a spring force, namely the spring 61 and thereby causes the return movement of the locking element 50. The aforementioned recess on the rotor 40 is preferably limited in the longitudinal direction of the rotor 40, whereby at the same time an axially fixed arrangement between knob 30 and rotor 40 is achieved.

The necessary power supply for the lock 10 is ensured in this case via two batteries with a voltage of 3V, which allows about 10 000 closing cycles. The batteries are arranged in a battery compartment 93 in the housing 20. In this embodiment, no emergency power supply is shown. However, this is possible if, for example, corresponding access holes on the plate-like lower part 33 of the knob 30 are provided in order to provide a corresponding access.

LIST OF REFERENCE NUMBERS

10

lock

20

casing

21

baseplate

22

mounting hole

23

Fixing aid, adhesive pad

24

back cover

25

side frame

30

knob

31

top

311

transparent cover

312

frame

32

ring

33

lower part

331

screw receptacle

332

screw

34

annular recording

341

nose

35

on-board circuit board

351

spring contacts

352

threaded hole

353

antenna

354

LED

355

Nipple to prevent rotation

36

circumferential edge

40

rotor

41

rotor-side board

42

contacts

43

edge recess

44

stator

441

Opening for 92

45

rotor axis

46

Pin code

47

front

50

blocking part

51

End of 50

60

longitudinal slide

61

feather

62

support point

63

attack

64

slope

65

pusher

66

eccentric guide

70

Cases

71

front

72

feather

73

Recess for 46

731

guide surface

732

guide surface

733

contact point

74

notch

741

swivel axis

75

paragraph

751

slope

76

Through Hole

77

back

78

longitudinal slot

80

mother

81

fixing screw

90

control unit

91

motherboard

92

foil connector

93

battery

94

engine

95

Actuator, eccentric bolt

96

limit switch

Claims (15)

1. A lock for doors, compartments, hatches, in particular for retrofitting to doors with a small standard hole,

   - whereby, an electronic control unit (90) and a mechanical closing unit are provided in a housing (20),

   - whereby, the closing unit includes a torque transmitting rotor (40) connected to a knob (30), a locking element and device to transfer a rotary motion into an opening motion of the locking element,

   - whereby, an antenna (353) is provided in the knob (30) which can interact with a separate transponder to verify a locking authority,

   - whereby, the housing (20) is arranged on the rear of a door and the knob (30) is arranged on the front of the door,

   - whereby, a plate (41) is arranged on the rotor side at one end of the rotor (40) which protrudes at the front of the door,

   - whereby, a plate (35) is provided and, for transmitting signals of the antenna (353) arranged in the knob (30) and for reciprocal contact of both plates (35, 41) are coupled by a detachable connection and,

   - whereby, the plate (41) on the rotor side is connected by a flexible connector to a primary plate (91) of the electronic control unit (90) arranged on the housing (20).
2. Lock in accordance with claim 1, characterized in that the flexible connector is a cable connector or a film connector (92), which is connected to the rear of the plate (41) on the rotor side and, whereby, a stator (44) arranged in the housing (20), which accepts the rotor (40) and is fixed axially, that rotates around the rotation axis (45), has a slotted aperture (441) for the connector.
3. Lock in accordance with claim 1 or 2, characterized in that spring contacts (351), provided in the knob of a plate (35) on the knob side, that are coupled to contacts (42) on a plate (41) on the rotor side, whereby, the contacts (42) are provided on the plate (41) of the knob (30) aligned to the front of the plate (41) on the rotor side.
4. Lock in accordance with one of the claims 1 to 3, characterized in that the knob (30) comprises of a cap-like upper part (31) and a plate-like lower part (33), whereby, the plate-like lower part (33) of the knob (30) has a circumferential rim (36) on the side pointing away the door, within which the plate (35) on the knob side, with which the spring contacts (351), as well as a minimum of one LED (354) is accepted and, whereby, the cap-like upper part (31) of the knob (30) includes a ring-shaped frame (312) with a transparent cover (311) and a ring (32) seated on the frame, whereby, the ring-shaped frame (312) is preferably seated on the circumferential rim (36) of the plate-like lower part (33) of the knob (30).
5. Lock in accordance with claim 4, characterized in that plate-like lower part (33) of the knob (30) interacts with the other, the side aligned to the rotor (40) has a ring-shaped receptacle (34) and the ring-shaped receptacle (34) features lugs (341) facing inwards, which interact with rim recesses (43) on the outer circumference of the rotor (40) for connection to prevent torsion.
6. Lock in accordance with one of the claims 1 to 5, characterized in that the knob (30) arranged on the front of the door is connected by an attachment screw (81) to the housing (20) on the rear of the door, whereby, this attachment screw (81) passes through the stator (44), the rotor (40), the plate (41) on the rotor side, the plate-shaped lower part (33) of the knob (30) and the plate (35) on the knob side and interacts with a screw thread on the lower side of the cap-like upper part (31).
7. Lock in accordance with one of the claims 1 to 6, characterized in that the stator (44) protrudes outwards on the face through the hole in the door and, in this area of the face, is adapted to the form of the hole in the door, preferably to the form of a standard hole, and is fixed to the door by a nut (80).
8. Lock in accordance with one of the claims 1 to 7, characterized in that an adhesive pad (23) is provided as a fixing aid for easier assembly to the front of the base plate (21) of the housing (20).
9. Lock in accordance with one of the claims 1 to 8, characterized in that

   - a latch (70), movable in the longitudinal direction, is arranged as a movable locking element between a locking position and an unlocking position and

   - that a movable locking part (50) is provided between an engage position and an extract position which, in its engage position, engages with its half-moon shaped recess of the rotor (40) installed radially on the front and, thereby, blocks the movement of the knob (30) and, whereby, the movement of the locking part (50) is blocked in its extract position by a longitudinal slide (60), without converging to the transponder on the knob (30) authorizing closing, because the other front (51) of the locking part (50) supports the longitudinal slide (60) in its blocking position at a supporting point (62),

   - which, however, when the transponder on the knob (30) authorizing closing initiates the control unit (90) to effect displacement of the longitudinal slide (60) from its blocking position to a release position of the locking part (50), by means of a motor (94) and actuating element (95), whereby, movement of the knob (30) is possible.
10. Lock in accordance with claim 9, characterized in that the radially installed half-moon shaped recess on the rotor (41) for the locking part (60) is adapted to the dimension of the locking part (60) so that, when the locking part (50) engages, the rotor (41) cannot be moved in the axial direction (45).
11. Lock in accordance with claim 9 or 10, characterized in that a pin (46) is arranged at the front (47) of the rotor (40) eccentric to the axis of the rotor (45), whereby, the pin (46) engages into a recess (73) at the front (71) of the latch (70) and, when the knob (30) and rotor (40) are rotated, the effect is displacement of the latch (70) in its unlocking position.
12. Lock in accordance with one of the claims 1 to 11, characterized in that the control unit (90) is operated by a battery, whereby, the battery compartment (93) is provided on the rear of the primary plate (91) and, whereby, preferably provides for an emergency power connection of small holes in the plate-shaped lower part (33).
13. Lock in accordance with one of the claims 1 to 12, characterized in that the housing (20) comprises of a robust base plate (21) with side frame (25) and a robust removable cover (24), made of metal, on the rear.
14. Lock in accordance with one of the claims 1 to 13, characterized in that the plate-shaped lower part (33) of the knob (30) is made from metal and the cap-shaped upper part (31) is made from synthetic material and the associated ring (32) is made from silicon.
15. Lock in accordance with one of the claims 1 to 14, characterized in that the antenna (353) is a copper coil arranged in the knob (30), or spiral-shaped strip conductor arranged on the plate (35) on the knob side.

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