FR2542357A1 - DOOR LOCK COMPRISING TWO DIFFERENT PEN MOVEMENT DEVICES - Google Patents

Abstract

DOOR LOCK WHICH INCLUDES A DEADLOCK 4 AND A SPRING LATCH 3 MANUALLY OPERATED, AND, AT LEAST FROM THE FIRST SIDE OF THE LOCK, A COUPLING PART 10 OF A FIRST TYPE WHICH CAN BE COUPLED TO A ROTATING KNOB 9 OR SIMILAR DEVICE AND IS CONNECTED IN OPERATION TO THE DEADBOLT 4 TO MANUALLY MOVE IT BETWEEN A PROJECTED LOCKING POSITION AND A RETRACTED UNLOCKING POSITION, AND, AT LEAST ONE SECOND SIDE OF THE LOCK ', A PART OF THE LOCK' COUPLING 8 OF A SECOND TYPE WHICH CAN BE COUPLED TO A KEY CONTROLLED LOCKING DEVICE 7, COUPLING PART 8 OF THE SECOND TYPE BEING CONNECTED IN OPERATION TO THE DEADBOLT 4. THE FUNCTIONAL LINK BETWEEN THE COUPLING PART 10 OF THE FIRST TYPE AND THE DEADBOLT 4 INCLUDES MEANS OF TEMPORARY INTERRUPTION OF THE FUNCTIONAL LINK.

Description

254235?

  The present invention relates to a door lock which comprises a deadbolt and a manually operated spring bolt and, at least on one side of the lock, a coupling part of a first type which can be coupled to a rotary knob or to a device

  analogous and which is functionally connected to the deadbolt

  mant for its manual movement between a position of ver-

  protruding rust and a retracted release position

  rusting, and, at least on a second side of the lock, a coupling piece of a second type which can be coupled to a key-operated locking unit, this coupling piece of the second type being connected

functionally deadbolt.

  The functions of a normal door lock

  stop the lock from including a spring bolt

  also the case in a lock according to the invention.

  However, the spring bolt is not itself part of

  the invention and it works in a very usual way-

  To actuate the spring bolt, use a

  door knob or analog device

  If the spring bolt is a roller bolt or a

  this of similar type, no handle is required

  and the spring bolt then works automatically

  when the door is closed or opened by pushing or pulling

tion.

  Many efforts have been made to obtain

  a series of locks in which you can use the same

  boot me for different types of locks with charac-

  different operating characteristics We can refer to

  ter for example to Finnish patent applications 763696 and 810912, the latter also being published under the reference

  GB 2 097 462 A As the desired functions for services

  rures intended for different uses are partly ripe

  so exclusive, it's hard to find a solution

perfect tion.

  The subject of the invention is a door lock, the housing of which can be used to obtain at least the following locking functions: first,

  a normal main door lock function

  le, that is to say that the lock can be operated manually on the inside of the door and only with a key on the outside; second, a function of

  inert lock of main door lock,

  that is, it is not possible to manually open the lock on the inside of the door; third, a

  control function only by key, allowing opening

  door only with a key, both sides

  door tees; fourth, an emergency manual opening function, i.e. a locked door

  and normally controlled by key can be opened manually-

  LEMENT ON ONE SIDE OF THE DOOR, IF NECESSARY The door lock object of the present invention comprises a deadbolt and a spring-loaded bolt controlled manually and at

  less than a first side of the lock, a coupling piece-

  of a first type which can be coupled to a button

  rotating or similar device and is connected in operation

  with the deadbolt to manually move it between a protruding locking position and a retracted unlocking position, and at least on a second side of the lock, a coupling piece of a second type which can be coupled to a key-operated locking device, the coupling part of the second type being connected in operation to the deadbolt The invention

  is essentially characterized in that the link functions-

  nelle between the coupling piece of the first type and the deadbolt comprises means of temporary interruption of the functional connection, to prevent manual control of the deadbolt A lock constructed as indicated allows

  easily perform all of the functions listed above, using

  reading only well known lock operating devices, such as door turning knobs, cylinder locking mechanisms, etc. 3.

  If you want a locking device with

  key can be coupled to both sides of the lock

  re, this is provided with two coupling parts which can each be coupled to a locking device controlled by key, these two parts being connected independently

  in operation with the deadbolt of the lock.

  To obtain a maintained locking function of the main door lock, the lock comprises a coupling piece of a first type, for a rotary knob, and a coupling piece of a second type, for a locking device with key control Parts

  of the two types are linked in function-

  the deadbolt so that, by first rotating the rotary knob to a safety position outside its normal operating sector, while the deadbolt is in its retracted position,

  then by moving the deadbolt to its sail position

  linked by means of the coupling piece of the second type, one can separate the operating coupling between the

  coupling piece of the first type and the deadbolt.

  Thus, the deadbolt cannot be returned to its posi-

  retracted tion, by rotation of the door knob In a preferred embodiment of the invention, a mechanism

  with fork and lug is used in the coupling of

  operation between the button and the deadbolt This mechanism

  me is designed so that, by rotating the button to its so-called safety position, the fork of the mechanism is released and moves away from the lug In the next phase,

  when the deadbolt is moved to its sailing position

  linked by means of a key-operated locking device, the lug moves to a position such, relative to the fork, that the latter cannot be coupled in operation to the lug The fork is actuated by the button and the lug is attached to an operating part of the

  deadbolt, this part can be actuated by a

  positive locking controlled by key, or by the button via the fork mechanism and lug This part is preferably a rotating part but it can

  also be made in the form of a sliding piece

  suitably guided health. Preferably, the rotary knob of the lock

  must be prevented from inadvertently moving into its posi-

  This is achieved by applying a

  appropriate elastic load To maintain the turn button

  nant in its safety position, when desired, a stopper is used which retains the rotary button

  in its safety position, despite the elastic load.

  The stop piece can be a spring return piece with automatic operation, or a manual position change piece, which is actuated for example by

  press a push button or similar pre-

  seen in the rotary button The operation of the lock releases the stopper and, consequently, also the rotary button.

  In order to obtain high operational safety

  The lock has an automatic reset of the lock.

  fork mechanism and lug, allowing the fork to receive

  see the lug when the deadbolt returns to its retracted position To easily obtain this result, there is provided, at the rear part of the deadbolt, a stop which pulls the fork back into its active position when the deadbolt

  frame moves to its locked position The oven-

  che then automatically attacks the lug when the bolt

  again returns to its retracted position Safety

  operating rity can be further improved if a relatively weak elastic part is provided in the lock, making it possible to retain the fork in a position for receiving the lug This elastic part can also act as a spring holding the rotary button

in its normal position.

  When it is desired to use a lock according to the invention as a lock controlled only by key, the lock is placed in a mortise of the door so

  part of the door covers the coupling part

  to the lock button This prohibits the use of

  tion of the rotary knob function.

  When it is desired to obtain an operation such that a locked door can be opened manually on one side, if necessary, provision is made on this side for

  the lock a rotary knob connected to the coupling piece-

  Since the rotary button must be used

  read only as a backup, it is preferably covered

  green by a breakable plastic cover, or it is blocked by a breakable seal or another

  medium If the door has to be opened manually,

get the cover or seal.

  In addition to the foregoing provisions, the invention also comprises other provisions which will emerge from

the description which follows.

  The invention will be better understood using the

  additional description below which refers to the drawings

annexed, in which

  FIG. 1 is an exploded view of an embodiment of

  reading of a lock according to the invention, comprising

a rotary button; -

  Figure 2 is a side view of the upper part

  inside of an open case of a lock conforming to the

vention;

  FIG. 3 schematically represents the arrangement

  elastic return of the rotary knob of the lock; and

  Figure 4 schematically illustrates the function-

  the stop piece of the rotary button.

  In the drawings, the reference numeral 1 designates the housing of a door lock comprising a front face 2, a spring bolt 3 and a deadbolt 4 The spring bolt 3 can be actuated by means of a contact piece 5 to which is coupled a handle 6 The deadbolt 4 can be

  moved by means of a coupling piece 8, for a dis-

  positive locking 7 with key control, and a coupling piece 10, for a rotary knob 9 The rectangular openings in the contact piece 5 and in the coupling piece 10 pass through the lock housing and

  control means can be coupled to these openings

  tures on each side of the lock Both sides of the lock also have coupling parts 8

  which operate independently of each other, that is

  say that the coupling piece 8 located on one side can

  be turned without influencing the coupling part if-

  killed on the opposite side The locking device 7 to

  key control is a standard cylinder lock.

  The rotary button 9 is kept rotating in

  a fixing plate 11 which is kept pressed hard-

  against the surface of the door by a protective ring

  tion 12 of the cylinder lock 7 The fixing plate 11 has an opening whose shape corresponds at least in part to the shape of the cylinder lock 7, so that the plate 11 is guided by the lateral surfaces of the latter. connect the rotary knob 9 to its coupling part 10, a flat shaft is used 13 A hole must be drilled in the door for the passage of the shaft 13 If the lock is to be used without a rotary knob, no drilling is made hole in the door for shaft 13 and

  the rotary knob and its fixing plate are removed.

  Cylinder locks 7 are preferably used on each side of the door These cylinder locks are fixed directly to the housing 1, both with a single screw passing through the housing or, as shown in the figure

  1, with two screws 15 extending from one side, passing through a ser-

  cylinder lock and housing 1 and screwing into the clamp

  opposite cylinder lock, or fitted with nuts so as to 542357 to lock the cylinder locks on either side of the case 1 The cylinder locking devices 7

  are also guided by their coupling piece 8 res-

  pective and, moreover, the fixing of each cylinder locking device is maintained by an associated protection ring 12 whose fixing screws 14 pass through

  the boot maker i and are screwed into the inside of the an-

  corresponding protective cover on the other side of the door.

  Figure 2 shows the elements of the ser-

  which are used to move the deadbolt 4 La

  coupling piece 8 of each locking device

  age controlled by key carries a lug 16 which transmits the

  ce of rotation to a recess 24 of a rotating part 17

  actuating the deadbolt 4 The rotating part 17 is sup-

  carried by a pivot 18 A fixed plate 19 is supported

  by rods 28, between the two coupling parts co-

  8 The role of this plate is to obtain that the cylinder locking devices, located on each

  side of the door, operate independently of each other

  be. The movement of the deadbolt 4 is guided by an orifice in the front face 2 of the lock and by

  a fixed rod 20 provided in the case 1 of the lock.

  The rotating part 17 transmits the force to the deadbolt 4

  by means of a lever 21 integral with the part 17, this le-

  sink housed in a recess 22 for force transmission, -provided in the deadbolt In FIG. 2, the rotary part 17 and the lever 21 are shown in their maintained locking position, in which

  -an abutment surface 23 of the lever 21 prevents the latch bolt-

  mant 4 to move to the right In the position re-

  pulled from the deadbolt, the abutment surface 23 exerts a corresponding action on the deadbolt and prevents it from

move to the left.

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  Deadbolt 4 can also be ordered

  by the coupling part 10 of the button This part com-

  takes a fork 26 which is normally in force transmission contact with a lug 27 provided on the rotary part 17 When the deadbolt 4 is in its retracted position, the fork 26 can be turned to the right, in a position 26 ao it is released from its contact with the lug 27 This position is obtained by rotation of the rotary button 9 to its safety position When the fork 26 is in position 26 a, the deadbolt 4 can be moved outwards, in its protruding position, by means of any of the key-operated locking devices 7. Thus, a stop 25, provided at the inner end of the deadbolt, returns the fork 26 to a substantially vertical position, but

  the rotating part 17 and its lug 27 have then moved

  cés in a position such that the pin 27 is outside of the fork 26 and can not be attacked by it It follows that the deadbolt 4 can not be retracted by rotation of the button 9 The return movement of the deadbolt in the unlocked position can only be carried out by the key control of one of the cylinder locking devices 7

  back into gear When the fork 26 is brought back to

  substantially vertical by the stop 25, the button turns

  nant 9 is also returned to its normal position The coupling part 10 of the button and the rotary part 17 are

  also interconnected by a spring 29, the function of which

  main task is to keep the rotating part 17 in one or other of its extreme positions, so that the

  abutment surface 23 of lever 21 is in a posi-

  deadbolt immobilization 4.

  Figure 3 illustrates the construction of the button

  turning When turning the button clockwise

  guilles of a watch, a part 30, integral with the button 9,

Z 542357

  compresses a spring 32 housed in the bearing body 31 of the

  rotary knob The opposite end of the spring is supported

  fixed part 33 When the deadbolt is operated

  mant 4, the rotary button 9 moves inside its sector a of normal operation, without being subjected to any load exerted by the spring A fixed boss 34 and the support piece 33 prevents the spring 32 from acting inside the sector a When the knob 9 is turned to its safety position, this movement takes place in the

  qv clockwise, at an angle b, against the ac-

  tion of the spring 32 The rotary button is locked in its safety position, by means of a pusher 35 provided in the button and the operation of which is illustrated in FIG. 4 The rotary button represented in FIG. 3 is intended for a door whose the hinges are located on the right for an observer placed on the side of the rotary button It is therefore normal to turn the button in the opposite direction

  clockwise when you want to move the deadbolt

  mant in its locked position If the hinges of the door

  are located to the left of the door, it is also ha-

  usual to turn the button clockwise when you want to move the deadbolt to its locked position To allow the use of the same turning button in both cases, the support piece

  33 is provided removable and a mounting housing (not shown

  shown) is provided for this part, symmetrically, on the other side of the fixed boss 34 If the support piece 33 is inserted in this second position and the spring 32 is placed in a corresponding active position, an arrangement is obtained which is symmetrical to that of the

figure 3.

  Figure 4 illustrates the operation of the part.

  this stop of the rotary button 9 The push-button 35 of the rotary button, in the safety position of the latter, pushes a stop rod 36 inwards, so that

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  its inner end enters a fixed housing 37.

  The stop rod 36 carries a small retaining ball 39 which retains the rod 36 resiliently in each of its extreme positions. The housing 37 has inclined lateral surfaces and the head 38 of the rod 36 has corresponding oblique surfaces. 'a

  sufficiently large torque exerted on the bou-

  your turning, eliminates the stop function of the rod 36 by moving this rod outwards The rod 36

  12 can be made of low-friction plastic.

  To allow the use of the rotary button at the same time

  in left-opening doors and open doors

  right, two retainers 37 must be

symmetrically provided.

  When a lock according to the invention must

  include an emergency opening function, this characteristic

  is obtained in a very simple way by installation

  tion, on the desired side of the door, of a rotary knob

  closed in a cover 40 preferably made of plas-

  transparent tick The cover can be broken or removed in an emergency and you can then turn the button to open the lock Normally, the rotary button is not

  not used, because of the plastic cover.

  As is clear from the above, the information

  vention is by no means limited to those of its modes of

  reading and application which have just been explicitly described; on the contrary, it embraces all the variants which may come to the mind of the technician in the

  matter, without departing from the framework or the scope of the pre-

invention.

Claims (9)

Claims   1 door lock which includes a deadbolt (4) and a manually operated spring-loaded bolt (3), and, at the   less than the first side of the lock, a coupling piece   plement (10) of a first type which can be coupled to a rotary button (9) or similar device and is connected   in operation with the deadbolt (4) to move manually-   it enters a locking position in sail-   lie and a retracted unlocking position, and, at   less than a second side of the lock, a coupling piece   plement (8) of a second type which can be coupled to a locking device (7) controlled by key, the coupling piece (8) of the second type being connected in operation to the deadbolt (4), characterized in that the functional connection between the coupling piece (10) of the first type and the deadbolt (4) comprises means for temporarily interrupting the functional connection,   to prevent manual control of the deadbolt (4).   2 door lock according to claim 1, charac-   in that, on each side of the lock, it is pre-   seen one of said coupling parts (83 of the second type which can be coupled to a locking device (7) controlled by key, each coupling part of the second   type being connected in operation to the deadbolt (4)   depending on the other coupling parts of the second- me type.   3 door lock according to claim 1 or 2, characterized in that the coupling parts (10,8) of the first and second types are connected in operation to the deadbolt (4) so that, by rotation first   instead of a rotary knob (9), coupled to a coupling part   plement (10) of the first type, in a safety position outside its normal operating sector while the deadbolt (4) is in its retracted position, then by displacement of the deadbolt (4) in its position   protruding by means of the coupling piece (8) of the two   xth type, we obtain a dissociation of the functional bond   between the coupling part (10) of the first type   pe and the deadbolt (4), which prevents the operation of returning the deadbolt (4) to its retracted position by   work of the coupling piece (10) of the first type.   4 door lock according to claim 3, charac-   characterized in that the functional connection between the coupling piece (10) of the first type and the deadbolt (4) comprises a fork and lug mechanism (26,27) arranged   so that, by turning the rotary button (9), accou-   plé a coupling-piece (10) of the first type, in the safety position, the fork (26) of said mechanism is distant from the lug (27) of this mechanism and that, when   the deadbolt (4), actuated from a coupling part   plement (8) of the second type, moves to its position in   projection, the lug (27) is brought out of reach of the oven   che (26), which prevents the fork (26) from engaging with the lug (27) while the deadbolt (4) remains in its protruding position.   Door lock according to claim 4, characterized in that the fork (26) is integral with one piece   coupling (10) of the first type and the lug (27) is so-   lidaire of a part (17) for operating the deadbolt (4), this last part being functionally connected to the coupling part or parts (10) of the first type as well as to   or the coupling parts (8) of the second type.   6 Door lock according to any one of the res-   dications 3 to 5, characterized in that the rotary button (9) has erasable stop means (36) which can   keep the rotary button (9) in its secure position you.   7 Door lock according to any one of the res-   dications 3 to 6, characterized in that a spring (32) is   arranged so as to act on the rotary button (9) when   that it is moved to its safety position below   out of its normal operating range.   8 Door lock according to any one of the res-   dications 4 to 7, characterized in that it includes automatic resetting means which bring the fork back   (26) from its release position to a preparation position   ration, in which it can receive the lug (27) when   the deadbolt (4) returns to its retracted position.   9 door lock according to claim 8, charac-   characterized in that a spring (29) resiliently retains the fork (26) in its preparation position, this spring also preferably acting as a retaining means   elastic of the coupling piece (10) of the first type.   Door lock according to È 4 to claim 1 or 2, mounted in a door mortise, characterized in that at least one of the coupling parts (10) of the first type is hidden under a covering part of a door in which the lock is mounted.   11 Door lock according to any one of   previous claims, characterized in that a part   this breakable insulation (40) is provided so as to prevent   expensive the use of a rotary button (9) coupled to a   coupling piece (10) of the first type, this piece of i   can only be broken for emergency use of the rotary button (9).