EP2463460B1 - Electric door lock with door stop mechanism - Google Patents

Description

The invention relates to an electromechanical door lock with a door-stop mechanism according to the preamble of patent claim 1.

With the DE 36 20 928 A1 a magnetic closure fitting with connection opening is described. An essential feature of the invention is that a cabinet door is pushed open by a spring-loaded magnet during the opening process. However, this document does not show a lock, about which it would be possible for the user, valuables in z. B. include a cabinet.

With the DE 92 09 053.2 a locking device is shown, which has a lock case with a catch body which is rotatably mounted and a hook attached to a door hooks in the closed position. Disadvantage of this document is that it does not provide an impact device, whereby the user is displayed after opening the electromechanical lock, which opened door it is.

An electrically unlockable or unlockable lock is also already out of the DE 10 2007 035 218 A1 known. In this case, a rotary latch has a recess into which a locking element engages, which is connected to a mounting plate. The rotary latch is rotatably and resiliently mounted and is controlled via an electromagnet together with a lever. In the unlocked state, it is possible for the user, by pulling action on the mounting plate, to pull the locking element out of the lock and thus to separate it from the entire closing device. A disadvantage of the present document is that the electromechanical lock has no open door signaling. Thus, it is not possible for the user to recognize the open position of the door and thus the readiness for use of the door lock.

The present invention is therefore based on the object to provide a simple and robust door lock, which provides a signaling of the open door.

The object of the present invention is solved by the patent claim 1.

An essential feature of the invention is that now for the first time a mechanical indication of the door opening is given by a mechanically displaceable driven door handle. In this case, one end of the door handle is connected to the front pivotable part of the door leaf, while the other end is held in a certain open position in the lock when the lock is unlocked. Thus, the door is held at unlocked lock in a defined open position to form an opening gap on the cabinet. This open position is the signaling to the user that the lock is unlocked.

Here it is essential that the electromechanical lock has resilient plungers in the displacement region of the door handle, which hold the door handle when opening the lock in a defined displacement position.

The advantage of this open position display is that it operates normally without the use of optical display elements and the defined open position of the door leaf has a clearly visible signaling character.

With the electromechanical door lock of the present invention, an automatic opening of the door by a defined opening gap is possible for the first time, wherein the door is automatically pressed by a spring into a defined open position.

After an opening pulse thus the door is pushed open and caught by two resilient pressure pieces again, whereby a defined stopping the door is made possible after an initial opening movement.

The U-shaped door handle of the present invention has a double function and serves both as a door and catch bracket for the door leaf. The central recess within the door handle is designed so that when engaging the resilient pressure pieces on the lock side, the door is collected again after a certain angle or after a few mm / cm and thus clearly visible in the defined open position.

Such an application of a defined door-stop or door-holding mechanism can be used, for example, in fitness clubs, valuables safes, in a tool cabinet, in a library, in a key box, in a medicine cabinet or the like. The invention is not limited to the above examples, but refers to any cabinet door that can be shut off with an electromechanical lock.

For example, the user authenticates with an RFID chip or a key at a central control unit and unlocks the associated associated lock. The electromagnet is now pulsed in the lock, whereby the locking lever folds down and the spring-loaded latch releases the door handle. Due to the spring force of the bolt of the U-shaped door handle is pushed out of the lock, but collected again by the resilient pressure pieces on the edge of the housing and held in the defined open position. The resilient plungers thus serve as a catcher. The user can now see through the slightly open door whether the authentication process was successful and where his locker is located in a room containing several lockers.

Due to the low height of the electromechanical lock is an installation in the intermediate wall of two cabinet-like metal boxes for the first time possible. This also represents an advantage in terms of tamper resistance of the castle.

Furthermore, the door handle is designed so that the mounting holes are always formed at the same height, whereby a simple installation is guaranteed.

As a central control unit can serve a personal computer, which provides a read-in unit for example, an RFID chip. Due to the central identification of the user of the locker and the small size of the lock, it is thus possible for the first time to accommodate a small space a Wertfachschließsystem, whereby the other users of the lockers are not hindered by open doors. After identification, the user only needs the slightly opened door for the first time search and can bring the door handle out of engagement of the resilient plungers on another train on the cabinet door.

• RFID (Mifare, DESFire, HID, Hitag, Proxy, LEGIC Prime und Advant)
• Finger
• Handy
• NFC
• Barcode
• Tastatur

Further identification options or authentication can be:

• RFID (Mifare, DESFire, HID, Hitag, Proxy, LEGIC Prime and Advant)
• finger
• mobile
• NFC
• barcode
• keyboard

In addition to the slightly open door, an LED signaling of the open or closed position is also possible.

• Holz
• Metall
• HPL
• Glas
• einflügelig
• zweiflügelig

The electromechanical locking system can be used in the following types of cabinets:

• Wood
• metal
• HPL
• Glass
• single leaf
• double leaf

In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are from the drawings and their description further features essential to the invention and advantages of the invention.

Figur 1:

Perspektivische Ansicht eines elektromechanischen Schlosses

Figur 2:

Schematische Darstellung eines elektromechanischen Schlosses, wobei sich der Türbügel in der Haltestellung befindet.

Figur 3:

Schnitt durch ein elektromechanisches Schloss, wobei sich der Haltebügel in einer Haltestellung befindet

Figur 4:

Perspektivische Ansicht des elektromechanischen Schlosses, in Haltestellung

Figur 5:

Schematische Darstellung des elektromechanischen Schlosses in Schließstellung

Figur 6:

Draufsicht des Türbügels

Show it:

FIG. 1:

Perspective view of an electromechanical lock

FIG. 2:

Schematic representation of an electromechanical lock, wherein the door handle is in the holding position.

FIG. 3:

Section through an electromechanical lock, wherein the headband is in a holding position

FIG. 4:

Perspective view of the electromechanical lock, in holding position

FIG. 5:

Schematic representation of the electromechanical lock in the closed position

FIG. 6:

Top view of the door handle

With the FIG. 1 An electromechanical lock 15 is shown, which finds use in lockers of all kinds. The electromechanical lock has an upper part 1, which has laterally increased outer walls and can be closed by a lower part 2 with the screws 14. In the upper part 1 is a latch 3 which is rotatably disposed about a cylinder pin 9. The latch 3 is spring-loaded via the spring 5 connected to the housing of the upper part 1, wherein one end of the spring 5 is connected to the latch 3 and the other end of the spring 5 is connected to a latching step. The latching steps 17 are in this case arranged semicircular, so that the spring 5 can be clamped differently with respect to the bolt 3. By this arrangement of the spring it is possible to affect a different spring-loaded force impact on the cabinet door.

The rotatably mounted about the cylinder pin 9 bolt 3 is formed so that it can receive a door handle 19 with a first recess and can engage with a arranged at the lower end of the bolt nose in a locking lever 4. The locking lever 4 is rotatably disposed about the cylindrical pin 8 in the upper part 1 of the electromechanical lock 15 and has a central recess into which the bolt 3 engages. In the closed position of the electromechanical lock 15, the nose of the bolt 3 is snapped into the recess of the locking lever 4.

During the opening process, a solenoid 7 acts like a pulse on the right side end of the locking lever 4 and thus triggers the snapped state between the locking lever 4 and the latch 3 again.

The solenoid can be designed for example as a 24-volt Hubmagent and have a maximum current consumption of two amps. In the lower region of the solenoid 7 while a spring 6 is arranged. The current-carrying connection for the electromechanical lock 15, in particular for the lifting magnet 7, takes place either via a plug 12 and a socket 13 or a cable.

In the open position of the electromechanical lock, the spring-loaded latch 3 is disengaged from the locking lever 4, wherein the locking lever 4 rests on its right end on a microswitch. The spring-loaded latch 3 thus releases the door handle 19, wherein this is pushed out of the lock due to the spring force of the spring 5.

The door handle 19 ( FIG. 2 ff) is bow-shaped and has a recess in its center, in which engage two perpendicular to each other, oppositely arranged resilient plungers 10 during the opening process. The door handle is thus pushed with the aid of the spring force 5 out of the lock, but also caught again by the resilient pressure pieces 10. At the resilient Thrust pads 10 may be, for example, two balls, which are held spring loaded in the outer position.

By targeted regurgitation of the door handle 19 takes place signaling for the user, which door is already open or which door is still closed, because the door handle is connected to the inside of the pivotal part of the door leaf with this. The collection of the door handle 19 by means of the resilient pressure pieces 10 is thus a defined stopping the door after a few millimeters to centimeters. The open position depends on the displacement length of the door handle.

The user can now bring by a tensile force on the cabinet door, the door handle 19 out of engagement with the two spring-loaded plungers 10. Thus, the door handle 19 is now pivotable together with the door and the locker is thus freely accessible.

The FIG. 2 shows the electromechanical lock 15 in the open position, wherein the defined stopping of the door handle 19 is shown by the resilient plungers 10. The connection of the door handle 19 with the cabinet door via a spacer plate 20 and a bracket 21. The ironing plate 21 has a U-shaped recess and two holes for attachment to the spacer plate 20. The door handle 19 is formed as a T-piece and has at a defined distance on its horizontal profile two vertical, upstanding wings 23 and paragraphs. When assembling the three fastening components (spacer plate 20, ironing plate 21 and door handle 19), the ironing plate 21 is inserted between the T-shaped end piece and the two wings 23 of the door handle 19 and connected to the spacer plate 29, for example via a screw connection. Due to the U-shaped recess in the ironing plate 21 and the defined distance between the T-shaped end piece and the wings 23 of the door handle 19 is partially free to move, but he can fully absorb the tensile and compressive forces in the closed state.

Due to this arrangement of the door handle 19 within the spacer plate 20 and the ironing plate 21, it is thus possible that the door handle 19 even with a poorly set cabinet door of the electromechanical lock 15th is caught. It can thus be compensated for differences in height or angle differences of the cabinet door.

The wings 23 on the door handle 19 are slightly ramp-shaped. At the electromechanical lock at the height of the resilient pressure pieces 10 arcuate rounded portions are also present, which cooperate with the wings 23 of the door handle 19. This makes it possible the door handle 19 out in the electromechanical lock, in particular in the recess of the bolt 3, introduce.

The electromechanical lock 15 further includes a partition wall 24 which separates the mechanical part from the electrical part. Thus, located on one side of the partition wall 24 of the mechanical latch 3 with the spring 5, which is clamped between the latching steps 17 and the latch 3 and the rotatably mounted locking lever 4 which is formed so that it acts through the partition wall 24 therethrough and spring-loaded via the spring 6 to the electromagnet 7 and the micro-switch 11 is connected.

The electromechanical lock 15 also has an LED receptacle which can receive an LED which signals an open or closed position of the lock.

With the FIG. 3 the lock is shown in section after a defined stopping of the door handle. The door handle 19 in this case has a central recess into which the resilient pressure pieces 10 engage.

With the FIG. 4 a schematic representation of the electromechanical lock is shown. Here, the latch 3 is with its nose out of engagement of the bulge of the locking lever. 4

The lock has at its upper part 1 an opening 18, which allows the user to perform from the outside a mechanical emergency opening of the castle.

The FIG. 5 shows the electromechanical lock 15 in the closed position. The 19 is in engagement of the bolt 3, wherein the bolt 3 is spring-loaded via the spring 5 and the latching steps 17 is clamped. With the arranged at the bottom of the latch 3 nose this is in engagement with the recess of the locking lever 4, wherein the locking lever undergoes a force by the lifting magnet 7 at its other end.

The door handle 19 has two vertically formed door wings 23, which are ramp-shaped and cooperate with a rounded surface at the level of the resilient pressure pieces. By the interaction of the wings 23 with the rounding of the upper part 1 of the electromechanical lock 15, a targeted and clean insertion of the door handle 19 in the electromechanical lock is possible, whereby the bracket 19 engages cleanly in the latch 3.

With the FIG. 6 the arrangement of the door handle 19 is shown on a cabinet door. By attaching the door handle 19 between a spacer plate 20 and a bracket 21 a tamper-proof screw with the cabinet door is guaranteed. <B><u> Drawing Legend </ u></b> 1 top 14 screw 2 lower part 15 Electromechanical lock 3 bars 4 Locking / lever 16 Cable (instead of 12, 13) 5 Spring (bolt) 17 Raststufe (for 5) 6 Spring (lifting magnet) 18 Emergency opening 7 solenoid 19 door bracket 8th Cylinder pins (Arretierfeld) 20 Distanzblech 9 cylinder 21 Ironing sheet 10 Spring plungers 22 LED Recording 11 microswitch 23 Wings (19) 12 plug 24 partition wall 13 Socket (cable)

Claims (8)

1. Electromechanical lock (15) for use in locker-type storage systems, wherein a door lock striker (19) is provided which is connected with the pivoting part of the door and can be introduced into the lock and immobilised there and engages in a recess in a latch (3) which is spring-loaded with a spring (5) and mounted pivotally and can be actuated by means of a locking lever (4) operated by an electromagnet (7), characterised in that the electromechanical lock (15) has sprung thrust elements (10) in the region of displacement of the door lock striker (19), in that during the opening operation the pivotally mounted latch (3) pushes the door lock striker (19) out of the lock into a defined displacement position with the aid of the spring force of the spring (5), and in that the door lock striker is held in this displacement position by the sprung thrust elements.
2. Electromechanical lock according to claim 1, characterised in that the spring (5) is arranged between the latch (3) and at least one bearing step (17).
3. Electromechanical lock according to one of claims 1 or 2, characterised in that the door lock striker (19) has a central recess into which the sprung thrust elements (10) engage.
4. Electromechanical lock according to one of claims 1 to 3, characterised in that the sprung thrust elements (10) are arranged facing one another at the rim of the housing of the electromechanical door lock (15)
5. Electromechanical lock according to one of claims 1 to 4, characterised in that the door lock striker (19) is arranged on a locker door by means of a spacer plate (20) and a striker plate (21).
6. Electromechanical lock according to one of claims 1 to 5, characterised in that the door lock striker (19) is T-shaped and has two vertical raised ramp-shaped lugs (23) to limit displacement in the closing position.
7. Electromechanical lock according to claims 5 and 6, characterised in that the striker plate (21) has a U-shaped opening into which the T-shaped door lock striker (19) engages with its raised end and the two vertical raised lugs (23).
8. Electromechanical lock according to one of claims 1 to 5, characterised in that the electromagnetic lock has an LED mounting (22) for an LED.

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