Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
  • E05B15/0013—Followers; Bearings therefor
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B17/00—Accessories in connection with locks
  • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
  • E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B17/00—Accessories in connection with locks
  • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
  • E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
  • E05B17/2015—Securing, deadlocking or "dogging" the bolt in the fastening position with wedging action
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
  • E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
  • E05B47/004—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets the magnets acting directly on the bolt
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B55/00—Locks in which a sliding latch is used also as a locking bolt
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B63/00—Locks or fastenings with special structural characteristics
  • E05B63/04—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B63/00—Locks or fastenings with special structural characteristics
  • E05B63/16—Locks or fastenings with special structural characteristics with the handles on opposite sides moving independently
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B63/00—Locks or fastenings with special structural characteristics
  • E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B65/00—Locks or fastenings for special use
  • E05B65/10—Locks or fastenings for special use for panic or emergency doors
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
  • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
  • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
  • E05C19/163—Devices holding the wing by magnetic or electromagnetic attraction a movable bolt being held in the striker by a permanent magnet

Definitions

• the present invention relates to an anti-panic lock for a door, in particular for a hinged door.
• PRIOR ART Locks are known that are provided with a latch, which is drivable by outer handle and an inner handle, and a bolt, coupled with a safety ratchet or key cylinder for key locking the door.
• a lock of this type When a lock of this type is in a locked condition, to open the door it is first necessary to retract the bolt inside the box body of the lock by acting on the key or on the ratchet. Only after rotating the aforesaid key or the aforesaid safety ratchet, is it possible, by acting on the inner handle or on the outer handle, to disengage the latch from the cavity provided in the doorpost so as to be able to lock the door.
• a lock of this type is known for example from WO2017149023.
• locks provided with a so-called“anti-panic” function are used, i.e. locks configured in such a manner as to make the opening of the door from inside a bedroom or room more immediate to facilitate evacuation to the exterior.
• the need to first give one or two turns to the ratchet or to the key to permit subsequent opening by the inner handle can be laborious, difficult and require more time than necessary in certain circumstances and situations in which saving even a few fractions of a second can save a life and in which unfortunately also the emotional aspect and panic adversely affect the lucidity of the individual, retarding or inhibiting the actions of the individual.
• Locks of anti-panic type have to be configured in such a manner that it is sufficient to rotate the inner handle (placed on the side of the door that is internal with respect to the room) to disengage both the latch and the bolt and thus be able to open the door; it is thus not necessary, as in a normal lock, to act first on the key cylinder, or on the “privacy” ratchet to retract the bolt, and subsequently intervene on the inner handle to free the latch from the cavity of the doorpost.
• the anti-panic function enables the user inside the room to open the door more rapidly, directly and easily, by acting only on the inner handle, and thus having the possibility to evacuate more easily from the respective room in an agitated emergency situation.
• the anti-panic function is associated only with the inner handle, it being on the other hand precluded for the outer handle to maintain obviously unprejudiced the“privacy” key locking function of the door.
• noise and mechanical reliability are negatively influenced thereby.
• doors for example hotel rooms
• the anti-panic locks can be right opening or left opening.
• the anti-panic lock thus had to be designed according to two different configurations, one intended for doors opening on the right and the other intended for doors opening on the left. This necessarily leads to having to provide mechanical parts that have been designed for one and the other configuration, without the possibility of reversibility of use for right and left opening. For this reason, inevitably, during the production step, a certain number of items has to be made both for the one and the other opening configuration, with consequent undesired charges from the point of view of production, assembly and logistical management costs.
• an anti-panic lock provided with ameliorative features that is structurally and functionally simplified, is more versatile and easy to construct and fit, and is also able to ensure at the same time an effective and reliable anti-panic function and security levels in the key locked condition that are higher than with current anti-panic locks.
• the present invention thus aims to achieve the aforesaid objects and overcome the drawbacks of conventional locks for a hinged door, by a solution according to the claim 1.
• an anti-panic lock for a door, in particular of the hinged type, suitable for being controllable by an inner handle and an outer handle placed respectively on an inner side and an outer side of the door with respect to a room, the anti-panic lock comprising:
• a cursor element having a first end shaped for driving said latch and extending as far as a second end configured for being directly engageable by a key- operated locking member
• said cursor element being movable along an opening direction, transverse to said first direction, to move said latch from said extracted position to said retracted position
• said lever means comprises a first lever unit and a second lever unit, that are drivable respectively by said outer handle and by said inner handle and are movable independently of one another, AND IN THAT said cursor element is movable, by said key-operated locking member, along a locking direction opposite said opening direction, to reach a selective disengagement position in which said cursor element is not engageable and drivable by said first lever unit associated with said outer handle, preventing in this manner opening of the door by said outer handle, said second lever unit being geometrically shaped to engage said cursor element even when said cursor element is in said selective disengagement position so as to ensure constantly that said inner handle is able to move said cursor element in said opening direction to permit rapid opening of said door in an emergency situation.
• Figure 1 shows perspectively the inner part of an anti-panic lock according to the present invention
• Figures 2, 3, 4 are different exploded views of the anti-panic lock of Figure 1;
• Figure 5 shows lever means that is part of the anti-panic lock
• Figure 6 is an exploded view of the lever means of Figure 5;
• Figure 7 is another exploded view of the lever means of Figure 5;
• FIG. 8 is an enlarged detail that shows the operation of the aforesaid lever means
• Figure 9 is a schematic view, in cross section, of the lock fitted to a door provided with inner and outer handles, in which the lever means is visible in schematic form;
• Figure 10 is another perspective view of a part of the lock
• FIGS 11 to 15 show different operating conditions of the anti-panic lock
• Figures 16 to 18 show different operating conditions of the anti-panic lock configured according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION
• An anti-panic lock 1 according to the invention is disclosed below that is suitable for being fitted to a door 2 of the hinged type, in particular, but not in a limiting manner, to an indoor hinged door, for example for hotel rooms, cruise liners, and other similar applications.
• the anti-panic lock 1 is configured for being driven by an inner handle 3 and by an outer handle 4, or knobs or other gripping elements, placed respectively on an inner side 5 and an outer side 6 of the door 2 with respect to the room.
• the anti-panic lock 1 has a containing box body 7, suitable for being housed in a cavity obtained in the door 2, and containing the mechanical driving components.
• the containing box body 7, for example made of stamped sheet metal, consists of two mutually couplable half shells to bound a compartment for the various components of the lock.
• the two half shells together define the upper and lower walls, two lateral parallel walls, a rear wall, and a front wall provided with respective upper and lower openings arranged for enabling a latch 8 and a possible bolt 21 to exit that are disclosed below.
• a frontal closing plate is provided that, once the box body 7 is inserted into the cavity of the door, is applied to the front wall fixed by the screws that fix the lock 1 to the door.
• the anti-panic lock 1 comprises a latch 8 that is suitable for engaging a retaining plate that is fitted to the doorpost at the engagement cavities for the latch and bolt.
• the latch 8 is movable, along a first direction Di, between an extracted position E that is extracted from the box body 7 and a retracted position R retracted into the box body 7.
• the anti-panic lock 1 comprises a cursor element 9 movable along an opening direction D A that is transverse to the aforesaid first direction Di, to move the latch 8 from the extracted position E to the retracted position R.
• the first direction Di is a horizontal direction
• the opening direction D A is a vertical direction
• the cursor element 9 has a first end 10 shaped for driving the latch 8 and extends as far as a second end 11 configured for being directly engageable by a key-operated locking member 12, such as a key cylinder or safety ratchet or the like.
• the anti-panic lock 1 comprises lever means 13 that is drivable by the inner handle 3 and by the outer handle 4 to move the cursor element 9 along the opening direction
• the lever means 13 comprises a first lever unit 13 A and a second lever unit 13B, which are drivable respectively by the outer handle 4 and by the inner handle 3 and are movable independently of one another.
• the cursor element 9 is movable, by the aforesaid key-operated locking member 12, along a locking direction D B opposite the aforesaid opening direction D A , to reach a selective disengagement position P D in which the cursor element 9 is not engageable and is thus not drivable by the first lever unit 13 A associated with the outer handle 4, preventing in this manner opening of the door 2 by the outer handle 4.
• a selective disengagement position P D in which the cursor element 9 is not engageable and is thus not drivable by the first lever unit 13 A associated with the outer handle 4, preventing in this manner opening of the door 2 by the outer handle 4.
• the cursor element 9 is in the selective disengagement position P D , possible driving of the outer handle 4 does not have any effect thereupon.
• the outer handle 4 is in a“freely rotatable” configuration, and has no influence on the position of the latch 8.
• the said second lever unit 13B is geometrically shaped to be able to engage with the cursor element 9 even when the cursor element 9 is in the selective disengagement position PD so as to ensure constantly that the inner handle 3 has the possibility of moving, in any closed condition of the door 2, the cursor element 9 along the opening direction DA SO as to ensure rapid opening of the door 2 in an emergency situation.
• the first lever unit 13 A and the second lever unit 13B are rotatable, by acting on the respective handles, around a same rotation axis X R in a mutually independent manner.
• the rotation axis XR is orthogonal to the plane on which the latch 8 and the cursor element 9 move, i.e. the plane defined by the first direction Di and by the opening direction D A -
• an engaging lug 14 is obtained, placed at an intermediate zone I thereof, and shaped for receiving a pushing action from the first lever unit 13 A and from the second lever unit 13B to move the cursor element 9 along the opening direction D A -
• the first lever unit 13 A comprises a first shaped insert element 15A having a first pushing finger portion and the second lever unit 13B comprises a second shaped insert element 15B having a second pushing finger portion.
• the cursor element 9 is movable from the selective disengagement position P D , corresponding to a key locked condition of the door 2, in which the cursor element 9 can be driven only by the second lever unit 13B, to a freely engageable position P E , corresponding to a normal closed condition of the anti-panic lock 1, in which the cursor element 9 can be driven, not only by the second lever unit 13B, but also by the first lever unit 13 A.
• the cursor element 9 and the lever units 13 A, 13B are configured in the following manner.
• the second pushing finger portion of the second shaped insert element 15B extends over a length that is greater than the first pushing finger portion of the first shaped insert element 15 A.
• the first pushing finger portion 15A comprises a first hooking distal end 16A that, at a rotation of the first lever unit 13 A, around the rotation axis X R , travels on a first circular trajectory Tl having a first radius Rl so as not to intercept the engaging lug 14 when the cursor element 9 is in the selective disengagement position P D .
• the first hooking distal end 16A is on the other hand able to intercept the engaging lug 14 when the cursor element 9 is in the freely engageable position P E .
• the second pushing finger portion 15B comprises a second hooking distal end 16B that, at a rotation of the second lever unit 13B around the rotation axis X R , travels on a second circular trajectory T2 having a second radius R2, greater than the aforesaid first radius Rl and such as to include in the area brushed by the second pushing finger portion 15B the engaging lug 14, which can then be intercepted and pushed (by the second lever unit 13B) even when the cursor element 9 is in the selective disengagement position P D -
• the first lever unit 13 A and the second lever unit 13B respectively comprise a first coupling body 17 A and a second coupling body 17B shaped for coupling with the first insert element 15A shaped as an insert and with the second insert element 15B shaped as an insert.
• Each of the two coupling bodies 17A and 17B couples with a respective half-pin 18A and 18B with a square section.
• the two half-pins 18A and 18B of square type are each coupled with the respective outer handle 4 and inner handle 3 and are mutually connected but rotatably decoupled from one another so that each of them can be rotated around its axis independently of the other.
• connection 60 that ensures mutual rotational freedom, and is defined by a threaded protrusion of the one that engages a threaded hole of the other.
• a rotation of the outer handle 4 has the effect of driving only the first lever unit 13 A, and not the second lever unit 13B, whereas a rotation of the inner handle 3 has the effect of driving only the second lever unit 13B.
• the anti-panic lock 1 is further configured for being fitted, with great versatility, and in a totally reversible manner, both to a right opening door and to a left opening door. This is made possible owing to the following features.
• the first 17A coupling body and the first 15A shaped insert element are configured for being assembled together removably, and the same applies to the second 17B coupling body with the second 15B shaped insert element.
• the first 17 A coupling body and the second 17B coupling body mirror one another, more precisely they are geometrically symmetrical with respect to a plane that is orthogonal to the rotation axis X R of the first 17A coupling body and the second 17B coupling body.
• the first 15A and the second 15B shaped insert element respectively comprise a first plate- shaped attaching portion 19A and a second plate- shaped attaching portion 19B, from which, in an integral manner, the aforesaid first 15A pushing finger portion and the aforesaid second 15B pushing finger portion respectively protrude.
• the first 17A and the second 17B coupling bodies each comprise a housing and joining seat 20A and 20B for connecting with the first 15A and second 15B shaped insert elements.
• the first 19A plate-shaped attaching portion and the second 19B plate-shaped attaching portion have the same geometric configuration to be able to couple, reversibly, respectively with one or the other of said housing and joining seats 20A and 20B.
• first 15A shaped insert element with the first 17A coupling body or with the second 17B coupling body (and the same applies equally to the second 15B shaped insert element) will depend on the type of opening (right or left) of the door 2 for which the lock 1 is intended.
• This configuration entails a series of advantages, as illustrated below.
• the anti-panic lock 1 according to the invention unlike prior art anti-panic locks, does not require specially designed mechanical parts to be provided for fitting to right opening doors and further mechanical parts to be provided that are differently configured and intended only for fitting to left opening doors.
• two springs 30A, 30B are provided arranged for urging elastically the first 13 A lever unit and the second 13B lever unit towards respective rest positions.
• a spring is provided 31 that urges on the cursor element 9 downwards, in an intermediate position, or position that is freely engageable by the two handles 3, 4.
• the cursor element 9 is held elastically in this position by the spring 31 of the flexure type (visible in Figure 16) that rests on a fixed shelf flap of the box body 7.
• the spring 31 of the flexure type visible in Figure 16
• a summit portion thereof meets a resistance of the flexure spring 31, which returns the cursor element 9 to the rest position as soon as the outer or inner handle is released.
• Further spring means 32 is provided that is arranged for urging elastically the latch 8 in a normal rest position that corresponds to the retracted position R (in this case the latch 8 is of magnetic type).
• spring means is provided that urges the latch to the extracted position E.
• the anti-panic lock 1 in the embodiments disclosed here with reference to the enclosed figures, comprises a bolt 21 for key locking the door 2.
• the bolt 21 is movable from a non-operating position, in which it is retracted into the box body 7, to an operating position in which it protrudes outside the box body 7.
• the key- operated locking member 12 in particular comprises a key cylinder provided with a bit element, which is rotatably drivable by inserting an appropriate key.
• the locking member 12 is defined, rather than by a key cylinder, by an appropriate key provided with a shaft and suitably shaped driving portion.
• an abutting zone 50, 51 is obtained that is shaped for coming into direct contact with the locking member 12 of key-operated or ratchet-operated type.
• This abutting zone comprises:
• a first abutting protrusion 50 suitable for receiving from the key-operated locking member 12 (in particular from the bit element thereof) a pushing action to move the cursor element 9 in the locking direction D B , and,
• a second abutting protrusion 51 suitable for receiving from the key-operated locking member 12 (in particular from the bit element thereof) a further pushing action to move the cursor element 9 in the opening direction D A -
• the cursor element 9 is provided with a protrusion element 24 for driving and locking the bolt 21 that is movable, parallel to the first direction Di of the latch 8, from the position protruding from the box body 7, for key locking the door 2, to the position retracted into the box body 7.
• the protrusion element 24 interacts and is slidable along a grooved path obtained on the bolt 21, and which comprises a tilted portion such that a movement of the cursor element 9 in the locking direction D B causes the bolt 21 to project outside the box body, and vice versa, a movement of the cursor element 9 in the opening direction D A is matched by a withdrawal movement of the bolt 21 to the inside of the box body 7.
• the aforesaid grooved path comprises a locking portion, extending orthogonally to the movement direction of the bolt 21, so arranged that the protrusion element 24, in the position of engagement with the aforesaid locking portion, acts as a locking means to lock the bolt 21 in the extracted operating position, preventing forced movements thereof from the outside. Owing to this configuration, the security levels of the lock 1 are increased further.
• the anti-panic lock 1 is configured without a bolt; in this case all the mechanical components remain unvaried, with the sole difference that the frontal closing plate of the box body does not obviously provide the transit opening for the bolt.
• the extreme versatility of the anti-panic lock 1 is thus obvious, which easily responds (without requiring a different design or different mechanical items) also to the requirement to have only one latch, having the key-operated locking function (privacy) but without the bolt.
• a locking ridge 22 is obtained that is shaped for restingly receiving a wall zone 23 of the latch 8 for locking the latter when the cursor element 9 is in the selective disengagement lowered position P D .
• the locking ridge 22 prevents forced movement of the latch 8 from the extracted position E to the retracted position R.
• the wall zone 23 is positioned to hinder, in the retracted position R, the aforesaid locking ridge 22 to prevent movement of the cursor element 9 in the locking direction D B .
• the wall zone 23 permits movement of the cursor element 9 in the locking direction D B when the magnetic latch 8 is in the extracted position E, in which it is received in a respective cavity of a doorpost.
• the cursor element 9 acting by means of the key-operated locking cylinder 12, is prevented from descending along the locking direction D B , owing to the wall zone 23 that hinders the ridge 22.
• the advantageous effect of this configuration is to prevent the bolt 21 exiting the box body 7 when the door is not actually abutting on the respective doorpost, thus avoiding damaging the latter if the door were to be slammed against the doorpost with the bolt is a prominent position.
• the anti-panic lock 1 comprises motion transferring means configured for imposing on the latch, by the cursor element, a shift along the first entry direction Di into the box body 7 corresponding to a shift of the cursor element along the opening direction D a .
• the motion transferring means comprises:
• the lever member 11 is rotatable around an axis Al orthogonal to the plane defined by the first direction Di and by the opening direction DA, to transfer a shift of the cursor element 9 - that is movable along the opening direction D A - to the latch 8 along said first direction Di.
• the motion transferring means comprises a pushing surface 50a, obtained on the cursor element 9’, and a yielding surface 50b, obtained on the latch 8’.
• the pushing surface 50a and the yielding surface 50b are arranged for coming into mutual contact and for sliding on one another.
• the pushing surface 50a and the yielding surface 50b extend along respective lying planes that are tilted with respect to the first direction Di and to the opening direction D A -
• anti-panic lock 1 The operation of anti-panic lock 1 is now disclosed concisely with the help of figures 11 to 15.
• Figure 12 shows the step of lifting the cursor element 9 by the first lever unit 13A driven by the outer handle 4.
• Two elements of the lock 1 are thus locked, i.e. a latch and bolt, significantly improving the achievable security levels.
• the engaging lug 14 can be hooked only by the second lever unit 13B drivable by the inner handle 3.
• the outer handle 4 and the first lever unit 13 A are in the“freely rotatable” condition.
• the user is not obliged to act first on the key-operated locking member 12 to raise the cursor element 9, which in turn retracts the bolt 21 to the inside.
• the upward shift of the cursor element 9 both causes the bolt 21 to withdraw to inside the box body 7 (by the grooved profile 34 of the bolt 21 that follows the movement of the protrusion element 24), and the latch 8 to withdraw to the inner retracted position R, by the action of the interposed lever member 41.
• Figures 16 to 18 show the operation of the means for transferring motion in the other embodiment in which the cursor element 9’ and the latch 8’ interact directly by the tilted sliding planes operating principle.
• the present anti-panic lock 1 is constructionally and functionally much simpler than known locks.
• the anti-panic lock 1 is defined by just a few essential mechanical components such as the cursor element 9, the lever units 13 A and 13B, the latch 8 and the bolt 21 (which can also be absent if this is desired).
• the cursor element 9 is configured to interact directly, without any need for other interposed components, with the key- operated locking member 12. The resulting weight reduction and increased reliability are clear.
• a particularly advantageous configuration is that of the lever units 13 A, 13B with shaped insert elements 15 A, 15B that are interchangeable between one another, that give the anti-panic lock 1 great fitting versatility, making the anti-panic lock 1 suitable for both right opening doors and left opening doors without specially designed items having to be prepared for one or the other fitting configuration.

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• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Mechanical Engineering (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Lock And Its Accessories (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=62386792

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (5)

• 2018
  • 2018-03-07 IT IT102018000003346A patent/IT201800003346A1/it unknown
• 2019
  • 2019-03-06 WO PCT/IB2019/051806 patent/WO2019171290A1/en unknown
  • 2019-03-06 EP EP19715563.3A patent/EP3762568A1/de not_active Withdrawn

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