FR2612233A1 - IMPROVED AUTOMATIC OPENING AND CLOSING LOCK - Google Patents

Abstract

LOCK WITH AUTOMATIC OPENING AND CLOSING CONSISTING OF AT LEAST ONE DEADBOLT 2 AND A HALF-TURN LATCH 3, A MECHANISM 6, 7 FOR KEY ACTION 8 OF THE DEADBATH 2 AND OF THE HALF-TURN LATCH 3, CHARACTERIZED AS THE MECHANISM 6, 7 FOR OPERATION BY KEY 8 IS PROVIDED ON THE OUTSIDE OF THE LOCK AND IN THAT IT ALSO INCLUDES MEANS 20, 21, 22, 23, 27 TO 34 ACTUATED BY AN ELECTRIC MOTOR 35 FOR DRIVING THE LATCH HALF-TURN 3 AND OF THE DEADBOLT 2 ACCORDING TO A PREDETERMINED SEQUENCE, MEANS 25, 26, 37, 38 FOR DETECTION OF THE POSITION OF THE DILAPLOCK 2, AND OF THE HALF-TURN PENET 3 IN THE LOCK AND IN RELATION TO THE STRIKE AND MEANS OF ACTUATION OF THE ELECTRIC MOTOR 35 AS A FUNCTION OF THE STATE OF THE SAID LOCK GIVEN BY THE SAID MEANS OF DETECTION.

Description

The present invention relates to locks and relates more

particularly to

  locks with automatic opening and closing.

  Known locks of this type generally include a mechanism for actuating the bolt, the release of which is ensured by an electrical signal

  generated from a code typed on a keyboard.

  However, locks of this type do not

  don't get to get a closing security in

  so that they are insufficient when

  would like a room to be really closed after each

than using the door.

  The invention aims to remedy the disadvantages

  locks with automatic opening and closing locks

  ticks by creating a lock that is likely to

  lock automatically after each use

  tion. The invention also aims to create a lock of the aforementioned type, the night control of which is ensured by an increased security system with respect to

to the system used during the day.

  Its object is therefore to open a lock.

  automatic locking and closing comprising at least one deadbolt and a latch bolt, a key actuation mechanism for the deadbolt and the bolt

  U-turn, characterized in that the acceleration mechanism

  key actuation is arranged on the outside of the lock and in that it further comprises means actuated by an electric motor for driving the latch bolt and the deadbolt in a predetermined sequence, means for detecting the position of the deadbolt, and of the half-turn bolt, in the lock and relative to the chisel and the means of actuation of the electric motor according to the state of said

  lock given by said detection means.

  The invention will be better understood using

  the description which follows, given only to

  as an example and made with reference to the accompanying drawings, in which:

  - Fig.1 is a schematic perspective view

  exploded pective of a motorized lock according to the

  vention; - Fig.2 is an elevational view in section on a larger scale of the motorized lock according to the invention mounted on a door leaf; - Fig.3 is a section along line 3-3 of Fig.2; - Fig.4 is a section along line 4-4 of Fig.2; - Fig.5 is an external front view of the lock according to the invention; and

  - Fig.6 is an electrical diagram of the circuit

  bake for controlling the lock according to the invention.

  The lock shown in Fig.1 mainly comprises a trunk 1 in which are mounted displaceable in translation a deadbolt 2 and a

U-bolt 3.

  The deadbolt 2 is provided with an extension 4 provided with notches 5 which cooperate with an eccentric

  6 which is part of a cylinder assembly 7 action-

  born by a classic type 8 key placed on the ex-

inside of the lock.

  The extension 4 of the deadbolt 2 is further provided with locking notches 9 cooperating with a

  finger 10 fixed on a plate 12 movable in trans-

  lation in the vertical direction and actuated by the excen-

stick 6.

  The U-bolt 3 is carried by a rod 13 provided with an end head 14 engaged in a

fork 15 secured to the boot 1.

  The rod 13 carries a flange 16 by means

  from which it is requested in the sense of the es

  camotage of the latch bolt 3 in the trunk '1, by a lever 17 or angle articulated on the extension 4 of the

deadbolt 2.

  A helical spring 19 for returning the latch bolt to the active position is disposed on the rod

  13 between the fixed fork 15 and the collar 16.

  The lever 17 is also actuated by

the eccentric 6.

  A second eccentric 20 disposed opposite the eccentric 6 and intended to actuate the bolts 2 and 3 is mounted at one end 'of an axis 21 which carries a toothed wheel 22 as well as an operating button 23

  placed on the inside of the lock. The whole set-

  driven by the eccentric 20, its axis 21, the wheel 22 and the button 23 replaces the key locking system

  conventional arranged opposite the set of cy-

  lindre 7 in a classic lock.

  The toothed wheel 22 is integral with a cam 24 cooperating with two limit switches 25 and 26 intended to determine the angular travel of the toothed wheel 22. The contactor 25 gives the position of the eccentric 20 when the latter is released from the notches of the extension 4 of the deadbolt 2 while the

  switch 26 gives the retracted position of the half bolt

  turn 3. The cam 24 has an additional portion 24a

  small radius relating to the actuation of the half bolt

round 3.

  The toothed wheel 22 meshes with a pinion 27 carried by an axis 28 parallel to the axis 21 and on which

  is fixed a pinion 29 of larger diameter.

  The pinion 29 meshes i in turn with a pinion 30 of small diameter carried by an axis 21 on

  which is wedged a pinion 32 of larger diameter.

  the latter meshing with a pinion 33 of small diameter

  be carried by the output shaft 34 of an electric motor

  35 unit drive unit.

  The operating button 23 constitutes with the key actuation mechanism 6,7, emergency means for mechanical actuation of the lock in the event of

power supply failure.

  The lock in Fig. 1 is completed by a contactor 36 for indicating the low position of the eccentric 6 released from the notches 5 of the extension 4 of the deadbolt 2, by a contactor 37 of the strike plate intended to indicate that the deadbolt is at the end of the closing stroke and by a contactor 38 of

  U-bolt intended to indicate that the half-bolt

tower is in the extended position.

  In Fig.2 there is shown in more detail an embodiment of the motorized lock according to the invention in place on a door leaf P. This lock is of the type with several penes actuated from the mechanism housed in the trunk 1 by means of rods T. The electric motor 35 and the reduction gear

  constituted by the gears and cogwheels of trans-

  mission of the movement of the output shaft 34 of said mo-

  tor to the axis 21 which carries the eccentric 20 are mounted in a housing 40 which contains the trunk 1, the plate 18 thereof having dimensions such that it

  also forms the bottom of the case 40.

  In the housing 40 is mounted a printed circuit board 41 for controlling the lock fixed to the housing by balusters 42. A piece 43 for positioning in the housing 40 of the axis 21 of the toothed wheel 22 with cam 24, axes 28 and 31, pinions 27, 29 and 30, 32 and the motor output shaft 34 is further fixed in the housing 40 by screws (not shown). The axes 21, 28, 31 are

  mounted in the positioning piece 43 via the

  medial of respective bearings 44, 45, 46 while corresponding bearings 47, 48, 49 for the other ends of these axes and a bearing 50 for the output shaft 34 of the motor 35 are provided in a part 51

  thicker housing 40.

  In the housing 40 is further provided a recess 52 in which are housed a switch 53

  with push button for opening the service

  and an electrical key switch 54 (Fig. 5), for changing the operating mode during the day or

night of the lock.

  On the face of the opening panel P opposite the

  box 40 is fixed a key box 55 for control

  from the lock using a code.

  Fig. 3 mainly shows the position

  various lock switches according to the

  vention. We see represented in phantom in the case 40, the electric drive motor 35, the pinions 27, 29, 30, 32 of the reduction gear, the cam 24 associated with the eccentric 20 and the deadbolt provided

from its extension 4 to notches 5.

  Cam 24 is associated with two micro-inter-

  breakers corresponding to contactors 25 and 26 shown

felt in Fig. 1.

  A third corresponding micro-switch

  in contactor 37, controlled by the extension 4 of the deadbolt 2 to detect when the bolt 2 is

in the extended position.

  We also see in Fig.3, the detector 38 of the latch bolt 3 released as well as the detector 36 indicating the released position of the notches 5 of the deadbolt 2 of the eccentric 6 of the key cylinder assembly 7 (Fig. 1) and a closed door detector 57 constituted by a reed * reed switch placed in the housing 40 opposite a permanent magnet 58 placed in a keeper 59 secured to the frame of the

door (Fig. 5).

  The means of actuation of the switch

  36 by eccentric 6 are shown more clearly-

  Fig. 2. They comprise a support 60 fixed on the trunk 1 and in which is slidably mounted a rod 61 returned by a spring 62 and fixed at an intermediate point to a finger 63 for actuating

switch 36.

  In Fig. 4, there is shown in more detail

  the motorized lock mechanism according to the invention

tion.

  The deadbolt 2 and the half-turn bolt 3 housed in the trunk 1 are driven by a conventional mechanism. This mechanism compromises a reference 64 linked to the extension 4 of the deadbolt 2 by a finger 65 which

1 drives in rotation.

  The reference is linked i in turn i to the connecting rods 66,67 by means of sets of grooves 68 and fingers 69 carried by the connecting rods, the latter being connected at their ends opposite to the fingers 69, to the respective rods T. On Fig. 6, the circuit has been represented

  electric lock control according to the invention

  tion carried by the printed circuit board 41

  mounted in the housing 40 (Fig. 2).

26 12233

  In this circuit, there are connected between two supply lines with low direct voltage, for example 48 V, the contactor 25 of the position released from the eccentric 20 actuated by the motor 35, the contactor 26 for half-bolt indication round

  very. the contactor 36 of the position clear of the

  plate 6 of the key cylinder assembly, the. contact-

  deadbolt 37 out 2, contactor 38 out

  latch bolt 3 out, push button switch

  evening 53 and the door closed detector 57.

  The electric motor 35 is connected to the supply lines of the series circuit with two double contacts 70 and 71 for starting and stopping

  and reversing its direction of rotation.

  The double contact 70 is controlled by a box

  linkage of motor control relay 72 in the direction of closing the door, connected in series

  with the contactor 36 of the position clear of the excess

  plate 6 of the key cylinder assembly 7.

  The double contact 71 is controlled by a box

  hoeing of motor control relay 73 in the direction of opening the door, connected in series with the push button switch 53 arranged on

the housing 40.

  In parallel, switch 53 is connected

  ché a contact 74 for connection to the electric circuit

of keyboard 55 (Fig. 2).

  In series with the relay winding 72 is

  connected a contact 75 mechanically coupled to a con-

  tact 76 connected in series with the relay winding 73 and with another contact 77 connected in series with a relay winding 78 for timed control of the

  door closing associated with a time circuit

  sation formed by a resistor 79 connected in series

26 1 2Z33

  with the coil of relay 78 and a capacitor 80

  connected in parallel on the winding 78.

  The relay winding 78 controls a contact 81 connected in series with the contactor 25 in the disengaged position of the eccentric 20 actuated by the motor 35. The contacts 75, 76 and 77 are controlled by

  a relay winding 82 connected in series with the con-

  Tactor 26 indicating retracted latch bolt.

  In series with contact 75 and contactor 36 for indicating position clear of eccentric 6

  is further connected a mechanically coupled contact 83-

  ment to a contact 84 connected in series with the coil-

  relay age 78, to a contact 85 connected in series

  with a function control relay 86 winding-

  night lock, and a contact 87 con-

  connected in series with the relay coil 72

  control of the motor 35 in the closing direction.

  Contacts 83, 84, 85, 87 are controlled by a relay winding 83a connected in series with

the open door detector 57.

  In series with the contact 84 is further connected a contact 88 mechanically coupled to a contact 89 connected in parallel on the contact 76 and to a contact 90 connected in series with the contact 87 and the relay winding 72 for controlling the motor 35

in the closing direction.

  Contacts 88, 89 and 90 are controlled by a relay winding 91 connected in series with the

  contactor 38 for latch bolt 3 extended.

  The night operation control winding 86 controls a contact 92 connected in series with the contactour 36 for indicating the clear position of the eccentric 6, the contacts 75 and 83 and the relay winding 72 for controlling the motor in the direction of the closure. The relay winding 86 is connected in

  series with an associated night actuation contact 93

  linked to the keyboard 55 and with a contact 54a coupled mechanically

  only switch 54 for changing the operating mode from day to night operating mode. In parallel on the push button switch 53 is connected a contact 94 controlled by the motor control relay 73 winding 35 in the

  sense of openness. Contact 94 is mechanically coupled

  only to a contact 95 connected in series with the con-

  tactor 36 for indicating the position clear of the former

  centric 20 driven by the motor 35.

  It is also mechanically coupled to the con-

  double tact 71 for reversing the direction of rotation of the mo-

35.

  The deadbolt 2 contactor 2 out is connected in series with a relay coil 96 for controlling a contact 97 connected in series with the contacts 87 and 90 and of a signaling contact 98

  of locked lock connected in a supply line

  mentation of signaling means associated with the lock.

  - The circuit finally includes a winding

  lais 99 connected to the terminals of the continuous low-voltage supply lines and controlling a contact 100 for signaling the system supply. A contact

  101 closed door signaling is mechanically coupled

  only with contacts 83, 84, 85 and 87.

  Signaling contacts 98, 100 and 101

  are intended for example to control LEDs

  miners not shown, which allows by simple ob-

  servation of these indicators to determine the different states of the lock and to intervene quickly in the event of

  of failure of its corresponding organs.

  Finally, a contact 103 for holding the relay 86, mechanically coupled to the contact 92 is connected in parallel to the night control contact 93 by the

keyboard 55.

  The operation of the lock will be

  crit below with reference to Figs. 1 to 6.

  By day, there are two ways to do

  re operate the lock, namely the push button switch 53 carried by the lock on the inside of the door and the keypad 55 located outside the room. The actuation of the switch 53 or the

  dialing a code on the keyboard 55 allows you to

open the door.

  The actuation of the switch 53 causes the supply circuit of the relay winding 73 to be closed, the contacts 76 and 89 being closed and therefore

  closes the holding contact 94, the opening

  contact 95 in series with the relay winding

  72 for motor control 35 in the direction of closing

  ture and the coming of the double contact 71 in a posi-

  tion such that the motor 35 is supplied in the direction di opening of the lock. Since the relay winding 72 is not supplied, the double contact 70 is placed in the position corresponding to the supply.

  motor 35 in the direction of opening the lock

  re. The actuation of the motor can take place only if the released latch detector 38 is open, and the winding 91 is not supplied, thus ensuring that the contact 89 connected in series with the winding is kept in the closed state. 73 and that if the contactor

26 1 2233

  26 for the retracted latch indication is open.

  The rotation of the motor 35 in the direction of opening causes the rotation of the toothed wheel 22 and of the cam 24 and the rotary drive of the eccentric 20 which in turn drives in transla-

  the deadbolt 2 in the opening direction.

  When the cam 24 has rotated by an angular stroke sufficient to cause the retraction of the latch bolt 3, there is closure of the contactor 26 and supply of the relay winding 82 which causes

  actuation of contacts 75, 76 and 77.

  The arrival of the latch bolt at the end of the retraction stroke causes the closure of the contactor 38 and the supply of the relay winding 91 which actuates

contacts 88, 89 and 90.

  The closure of contacts 77 and 88 causes the supply of circuit 79, 80 for time delay

  the supply of the relay winding 78.

  The duration of this delay is such that after a predetermined time interval, and if the door has not been opened, the relay winding 78

  can activate contact 81 to cause power

  mentation of the motor 35 in the closing direction.

  The opening of door P unlocked by

  actuation of the deadbolt 2 by means of the excen-

  stick 20 driven by the electric motor, is as-

  secured by a single push and causes the reed contactor 57 to close and the relay winding 83a to power, which actuates the contacts 83. 84, 85, 87 and

101.

  Closing contact 83 provides a pre-

  first contribution to the closure of the power circuit

  motor control relay 72 winding

in the closing direction.

  The opening of contact 84 ensures the interruption

  tion of the time delay by cutting off the power of the RC circuit 79, 80 so that the closing of the lock cannot be controlled when the door is open.

  The opening of contact 85 interrupts feeding.

  mentation of the relay winding 86 and the opening of the

  contact 92 which is in the supply circuit

  tion of the motor control relay 72 winding

in the closing direction.

  The opening of the contact 87 contributes to opening the winding supply line 72 in which

  there are also contacts 90 and 97.

  Motor rotation causes opening

  of the half-bolt retracted position switch 26

  turn 3, which causes the supply of the relay winding 82. This actuates the contacts 75, 76 and 77. The contact 75 causes the motor 35 to stop by

  actuation of contactors 72 and 70.

The engine 35 is then stopped.

  The eccentric 20 then being in the off position

  the contactor 25 is closed.

  When door P is closed, either by hand or using an automatic door closer

  shown in the drawings, there is opening of the

  switch 57 and interruption of the supply to the relay winding 83a, which brings the contacts 83, 84, 85, 87 and 101 to their initial position shown in FIG.

  6. The latch bolt 3 after being retracted by con-

  tact with the wall of the giche 59 returns to position

  exit under the action of spring 19 and causes the

  contactor 38 and therefore establishes contact 90 in series with contacts 87 and 25. The

  motor 35 is then actuated in the direction of closing

  set and have eccentric 20 perform two turns to ensure the engagement of deadbolt 2 fully

in its giche 59 (Fig. 4).

  This position of the deadbolt results in the opening of the contactor 37 and the interruption of the supply of the relay winding 96 so that

the contact opens.

  The opening of the released deadbolt contactor 37 is accompanied by the opening of the switch 25

* indication of the clearance of the eccentric 20 and pro-

the engine stops 35.

  The motor 35 is kept stopped until a subsequent actuation either of the push button switch 53 or of the contact 74 controlled by the

code entered on the keypad 55.

  The night lock can only be operated from the outside using the keypad 55

  controlling contactor 93 after actuation

  key switch table 54a for passing the

  lock in night operating mode, which pro-

  evokes the cutout of the daytime running switch 54. The composition of a code on the keyboard 55 causes the closure of the contact 93 and the supply of the relay winding 86 which cuts the supply of the motor 35 so that the lock can no longer be

  open only by actuation of the cylinder assembly

  dre exterior 7 using the key 8.

  However, as soon as the eccentric 6 has provo-

  that the retraction of the deadbolt 2 and that the door has been opened, the open door detector 57 closes and supplies the relay winding 83.A which actuates the contact 85 and makes the relay winding 86 pass

  in its state corresponding to night operation.

  Furthermore, the contactor 37 of the bolt that is pulled out closes and by means of the winding 96 ensures

  the closure of contact 97 which is in the circuit

  cooked power supply to the motor control coil 72

  in the closing direction. The engine is ready to close

  the lock as soon as the door leaf P is closed

me.

  The system then works in the same way.

as described above.

  Night and day, the actuation of the lock can be ensured from the inside using

  the push button switch 53.

  For control from outside, the code to use at night to activate the keyboard 55

  can be chosen different from that used during the day.

  For the control of the day lock, from the outside, it is only possible to use the keypad code because as long as the motur 35 is not

  not neutralized by the night code, it ensures the re-

  instantaneous closing of the lock after any attempt to open with the key by opening the contactor 37 which causes the motor 35 to be powered

in the closing direction.

  The lock which has just been described has a number of advantages over conventional locks. Due to its actuation by a motor

  electric, it has great flexibility of use

reading.

  It can be controlled remotely either by a keyboard and a push button as described more

  high, or again by a microcomputer, a micro-

processor or whatever.

  It allows to have a double coding,

mechanical and electronic.

  It provides automatic locking from

  that the door which it equips is closed, which constitutes

kills increased positive security.

  The time delay device allows

  secure automatic relocking if after an inter-

  given time valley, the door which it equips has not

been open.

  It is finally very easy to use.

Claims (11)

  1. Lock with automatic opening and closing   tick comprising at least one deadbolt (2). and a latch bolt (3), a key actuation mechanism (6,7) (8) of the deadbolt (2) and the latch bolt   (3), characterized in that the mechanism (6,7) for ac-   key actuation (8) is disposed on the outside of the lock and in that it further comprises means (20,21,22,23,27 to 34) actuated by an electric motor (35) for driving the U-bolt (3)   and deadbolt (2) according to a predeter sequence-   mined, means (25,26,36.37,38,57) for detecting the position of the deadbolt (2), and the latch bolt (3) in the lock and relative to the lock (59) and   means (72,73,78,82,83a, 86,91,96,99) for operating   the electric motor (35) depending on the state   of said lock given by said detection means tion.   2. Lock according to claim 1, ca-   characterized in that said means for driving the latch bolt (3) and the deadbolt (2) comprise   a reduction gear (22 to 34) driven by said electric motor   and an eccentric (20) carried by the output shaft (21) of the reducer and disposed opposite said mechanism (6,7) for actuating the lock by key (8).   3. Lock according to claim 2, ca-   characterized in that said means for detecting the position of the latch bolt (3) and the deadbolt (2) comprise contactors (25, 26) actuated by a   cam (24) driven by the output shaft (21) of the   ductor, said cam comprising a portion (24a) of smaller radius relating to the actuation of the bolt U-turn (3).   4. Lock according to one of claims   2 and 3, characterized in that said means for de-   tection of the position of the latch bolt and the dead bolt further comprises a contactor (38) for the latch bolt extended, a contactor (37) for the dead bolt (2) extended and a contactor (57) arranged opposite the strike hole (59), said contactors (38, 37, 57) being respectively connected in means supply circuits (91, 88, 89, 90, 98, 97, 98, 83a, 83, 84, 85 , 87, 101) for controlling the electric motor (35) driving the lock as a function of the state of the lock given by said locks position detection means.   5. Lock according to one of claims   3 and 4, characterized in that the mechanism (6,7)   actuation of the lock by key (8) and the mechanism   lock drive mechanism by means of said electric motor (35) each comprise a drive member (6,20), said drive members being driven one (6) by a cylinder assembly (7) to key (8) and the other by the output shaft (21) of the   reducer (22, 27 to 34) associated with said electric motor   that (35) and being arranged opposite one another so as to cooperate with the extension (4) of the deadbolt (2) and in that said contactors (25, 26) actuated by said cam constitute means of   detection of the position of said driving organs   authorizing the operation of the lock   6. Lock according to any one of the re-   vendications 1 to 5. characterized in that it comprises   furthermore means (78,79,80,81) of temporary control   porized electric motor (35) in the direction of   closing of the lock intended to cause the closing   lock type if after a time interval 26 1 2233   predetermined the pins (2,3) of the lock are located   still facing said giche (59).   7. Lock according to one of claims   above, characterized in that it includes means (53,55,74) for day control, means (53,, 93.8) for night control and means (54,54a)) for passing the lock of a command mode of   day to night control mode.   8. Lock according to claim 7, ca-   characterized in that said day control means comprise a push button switch (53) placed on the inside of the lock, and a remote code control device (55) placed   outer side of the lock and associated with an interrup-   engine power control unit (35) in   the sense of openness in response to the action of the dispo- remote control.   9. Lock according to claim 8, ca-   characterized in that said night control means comprise said push button switch (53) and said code remote control device (55) and in that said means for passing the   lock from day control mode to control mode   at night include a key switch (54,54a) placed on the inside of the lock and intended to   trigger the neutralization of the external command   of the electric motor (35) under the action of the   positive remote control, and make it possible   the opening of the lock from the outside by the mechanism   actuation mechanism (6,7) with key (8) only.   10. Lock according to any of the   vendications 2 to 9, characterized in that it further comprises a member (23) disposed on the inside of the lock, for manually actuating said means   (20, 21, 22, 23, 27 to 34) for driving the deadbolt   mant (2) and the latch bolt (3) in the event of an electrical power supply failure, said member   (23) constituting with the action mechanism (6,7)   by key placed on the outside of the door lock   emergency means of mechanical actuation of the service   rure. 11. Lock according to any one of   claims 1 to 10, characterized in that it   further comprises means (96, 98, 99, 100, 83a, 101) for signaling the various states of the lock, intended to allow rapid intervention in case of failure.