EP1741857A2 - Electric lock for safety doors - Google Patents
Electric lock for safety doors Download PDFInfo
- Publication number
- EP1741857A2 EP1741857A2 EP06005822A EP06005822A EP1741857A2 EP 1741857 A2 EP1741857 A2 EP 1741857A2 EP 06005822 A EP06005822 A EP 06005822A EP 06005822 A EP06005822 A EP 06005822A EP 1741857 A2 EP1741857 A2 EP 1741857A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- actuation
- type handle
- bar
- latch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
- E05B47/0684—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially
- E05B47/0688—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a pivotally moveable coupling element
-
- 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
- E05B2047/0072—Operation
- E05B2047/0073—Current to unlock only
-
- 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
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
-
- 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
- E05B63/0065—Operating modes; Transformable to different operating modes
-
- 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
- E05B65/00—Locks or fastenings for special use
- E05B65/10—Locks or fastenings for special use for panic or emergency doors
- E05B65/1046—Panic bars
Definitions
- the present invention relates to a lock for bar-type handles for safety doors with electrically-operated means for opening from the outside.
- safety doors are already commercially available which are provided, toward the inside, with an anti-panic bar, which can be of any type, and further allow to open the door from the outside by means of a conventional lever-type handle.
- Key-operated means are provided on these locks and allow to close the door as regards actuation from the outside, whereas it must be always possible to perform safety opening of the door, i.e., opening from the inside.
- Locks have already been devised, for these types of locks, which can be operated electrically in order to allow their opening, but such locks have a very complex structure and there is further an overall limitation of the possibility to operate the lock manually.
- the aim of the invention is to eliminate the drawbacks noted above, by providing a lock for bar-type handles for safety doors with electrically-operated means for opening from the outside which allows to have independently both electrical actuation and manual actuation, always with very simple use.
- an object of the invention is to provide a lock in which, though having various types of actuation, it is possible to have a small number of components with idle actuation of the outside lever-type handle, without the possibility of forcing, when the key-operated means are in the closure position and the electrical means are not activated.
- Another object of the present invention is to provide a lock for bar-type handles for safety doors which, thanks to its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
- Another object of the present invention is to provide a lock for bar-type handles for safety doors which can be obtained easily starting from commonly commercially available elements and materials and is further competitive from a merely economical standpoint.
- a lock for bar-type handles of safety doors with electrically-operated means for opening from the outside comprising a box-like body which can be accommodated in a door and is provided with a closure latch which can be actuated from the inside by means of a bar-type or lever-type handle and from the outside by means of a lever-type handle controlled by key-operated means, means for actuating said latch being further provided which are connected to first actuation means associated with said bar-type handle and to second actuation means associated with said lever-type handle, characterized in that it comprises means for activating said second actuation means, which can be driven electrically, and manual actuation means for opening said latch by way of said key-operated means.
- the lock for bar-type handles for safety doors with electrically-operated means for opening from the outside comprises a box-like body 2, which can be accommodated on the edge of a safety door, designated by the reference numeral 3.
- the box-like body 2 accommodates a latch 4, which protrudes at said edge and is connected to a sliding plate 5, on which the latch actuation means act.
- the latch actuation means are constituted by two L-shaped levers 10, which are arranged symmetrically with respect to each other and are pivoted at the vertex about a pivot 11 connected to the box-like body; the levers have a first arm 12, which engages, at one of its ends, a recess 13 provided in the plate 5 of the latch 4.
- the second arm 14 of the L-shaped lever 10 is arranged at first actuation means, described in greater detail hereinafter, which are connected to a bar-type handle 20, which can be of any type, is arranged at the internal face of the door and can be constituted optionally by a conventional lever-type handle, which allows to always open the door from the inside in any case.
- a first coiled spring 15 acts on the L-shaped lever 10 and keeps the latch elastically in the extracted position.
- the first actuation means are constituted by a ratchet system 21 of the bar-type handle 20, or first ratchet system, which is provided with a square hole 22 in which the square pin 23 of the bar-type handle engages.
- the first ratchet system is provided with a first tab 24, which is arranged at the second arm 14 of the lever 10.
- the ratchet system 21 is provided with a first pusher arm 25, on which a pusher spring 26 acts; said spring abuts, at its other end, against the internal wall of the box-like body.
- a second ratchet system 30 is arranged laterally adjacent to the first ratchet system 21, with optional spacers interposed, constitutes the second actuation means and is provided with a hole 4 for engagement with the square pin 31 of the lever-type handle 32.
- the second ratchet system 30 is provided with a second actuation tab 35, which is superimposed on the first tab 24 and is unable to interfere directly with the arm 14.
- the second ratchet system 30 is provided with a second pusher arm 36, which is arranged laterally adjacent to the first element 25 and is pushed elastically by the spring 26.
- Means for activating the second actuation means are provided above the plate 5 of the latch and are constituted by an oscillating plate 40, which is pivoted about a central pivot 41, which engages an elongated slot 42 of the oscillating plate.
- the oscillating plate has, at the end directed toward the arm 14 of the L-shaped lever 10, a folded abutment 43, which can be interposed between a pusher abutment 14a of the arm 14 of the lever 10 and the second actuation tab 35.
- the folded abutment 43 can be engaged by the second tab 35, so that by turning the lever-type handle from the outside the L-shaped lever 10 is turned, consequently opening the latch.
- the oscillating plate 40 oscillates so that the folded abutment 43 disengages from the arm 35, and the consequent actuation of the lever-type handle from the outside is idle, so that the corresponding actuation of the L-shaped lever 10 does not occur.
- said coil By activating the coil 60, i.e., by activating the electrical means, said coil attracts the armature, which is connected to the element 61, and consequently turns the oscillating plate 40, which arranges its fold 43 in such a position that it is activated by the second tab 35, allowing opening from the outside by means of the lever-type handle.
- the activation of the coil 60 can be achieved with any means, such as for example an authorized card, an electronic key or any other element which allows authorized individuals to supply power to the coil 60, consequently allowing to open the door from the outside.
- a particular feature of the invention consists in that there are also means for manual actuation in order to open the latch by way of the key-operated means, which are provided by means of a manual plate 70 fitted so that it can oscillate about a manual actuation pin 71, which engages an elongated slot 72, the manual plate 70 being provided with a lateral tab 74, which can be engaged by the eccentric element 73 of the key.
- the manual plate 70 By turning the key, due to the engagement of the eccentric element 73 with the lateral tab 74, the manual plate 70 performs a translational motion and in turn engages by contact against the oscillating plate 40, which constitutes the means for activating the second actuation means, and consequently produces its translational motion, causing the oscillation of the L-shaped lever 10 and the consequent opening of the latch 4.
- the proposed lock offers various possibilities of actuation and in fact, with the lock in the open position, from the outside it is possible to perform opening simply by means of the lever-type handle or, optionally, it is also possible to actuate the latch manually without resorting to the use of the lever-type handle, using instead the rotation of the key.
- the lock according to the invention is structurally very simple and is constituted by an extremely limited number of components, which interact with each other so as to increase the functionality of the lock.
- the materials used, as well as the contingent shapes and dimensions may be any according to requirements.
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
- The present invention relates to a lock for bar-type handles for safety doors with electrically-operated means for opening from the outside.
- As is known, safety doors are already commercially available which are provided, toward the inside, with an anti-panic bar, which can be of any type, and further allow to open the door from the outside by means of a conventional lever-type handle.
- Key-operated means are provided on these locks and allow to close the door as regards actuation from the outside, whereas it must be always possible to perform safety opening of the door, i.e., opening from the inside.
- Locks have already been devised, for these types of locks, which can be operated electrically in order to allow their opening, but such locks have a very complex structure and there is further an overall limitation of the possibility to operate the lock manually.
- These limitations are not welcomed by users, since they do not allow, with an electric lock, to have all the manual actuations deemed appropriate, and therefore it is necessary to resort in each instance to specific solutions.
- The aim of the invention is to eliminate the drawbacks noted above, by providing a lock for bar-type handles for safety doors with electrically-operated means for opening from the outside which allows to have independently both electrical actuation and manual actuation, always with very simple use.
- Within this aim, an object of the invention is to provide a lock in which, though having various types of actuation, it is possible to have a small number of components with idle actuation of the outside lever-type handle, without the possibility of forcing, when the key-operated means are in the closure position and the electrical means are not activated.
- Another object of the present invention is to provide a lock for bar-type handles for safety doors which, thanks to its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
- Another object of the present invention is to provide a lock for bar-type handles for safety doors which can be obtained easily starting from commonly commercially available elements and materials and is further competitive from a merely economical standpoint.
- This aim and these and other objects which will become better apparent hereinafter are achieved by a lock for bar-type handles of safety doors with electrically-operated means for opening from the outside, according to the invention, comprising a box-like body which can be accommodated in a door and is provided with a closure latch which can be actuated from the inside by means of a bar-type or lever-type handle and from the outside by means of a lever-type handle controlled by key-operated means, means for actuating said latch being further provided which are connected to first actuation means associated with said bar-type handle and to second actuation means associated with said lever-type handle, characterized in that it comprises means for activating said second actuation means, which can be driven electrically, and manual actuation means for opening said latch by way of said key-operated means.
- Further characteristics and advantages of the present invention will become better apparent from the description of a preferred but not exclusive embodiment of a lock for bar-type handles for safety doors with electrically-operated means for opening from the outside, illustrated by way of nonlimiting example in the accompanying drawings, wherein:
- Figure 1 is a view of the lock in the open position, with the possibility to actuate it by means of the external lever-type handle;
- Figure 2 is a view of the step for actuation by means of the external lever-type handle, with the lock in the open position;
- Figure 3 is a view of the lock in the closed position;
- Figure 4 is a view of the lock, with the key-operated means in the closure position and with activation of the lock by way of the electrical means which allow opening from the outside;
- Figure 5 is a schematic view of the step for opening by means of the bar-type handle from the inside, which can also be performed with the key-operated means in the closure position;
- Figure 6 is a view of the lock during actuation by way of the manual actuation means for opening the latch by way of the key-operated means;
- Figure 7 is a view of the first and second actuation means;
- Figure 8 is a view of the lock arranged inside a door.
- With reference to the figures, the lock for bar-type handles for safety doors with electrically-operated means for opening from the outside, according to the invention, generally designated by the
reference numeral 1, comprises a box-like body 2, which can be accommodated on the edge of a safety door, designated by thereference numeral 3. - The box-
like body 2 accommodates alatch 4, which protrudes at said edge and is connected to asliding plate 5, on which the latch actuation means act. - The latch actuation means are constituted by two L-
shaped levers 10, which are arranged symmetrically with respect to each other and are pivoted at the vertex about apivot 11 connected to the box-like body; the levers have afirst arm 12, which engages, at one of its ends, arecess 13 provided in theplate 5 of thelatch 4. - The
second arm 14 of the L-shaped lever 10 is arranged at first actuation means, described in greater detail hereinafter, which are connected to a bar-type handle 20, which can be of any type, is arranged at the internal face of the door and can be constituted optionally by a conventional lever-type handle, which allows to always open the door from the inside in any case. - A first coiled
spring 15 acts on the L-shaped lever 10 and keeps the latch elastically in the extracted position. - The first actuation means, as shown in Figure 7, are constituted by a
ratchet system 21 of the bar-type handle 20, or first ratchet system, which is provided with asquare hole 22 in which thesquare pin 23 of the bar-type handle engages. - The first ratchet system is provided with a
first tab 24, which is arranged at thesecond arm 14 of thelever 10. - The
ratchet system 21 is provided with afirst pusher arm 25, on which apusher spring 26 acts; said spring abuts, at its other end, against the internal wall of the box-like body. - A
second ratchet system 30 is arranged laterally adjacent to thefirst ratchet system 21, with optional spacers interposed, constitutes the second actuation means and is provided with ahole 4 for engagement with thesquare pin 31 of the lever-type handle 32. - The
second ratchet system 30 is provided with asecond actuation tab 35, which is superimposed on thefirst tab 24 and is unable to interfere directly with thearm 14. - The
second ratchet system 30 is provided with asecond pusher arm 36, which is arranged laterally adjacent to thefirst element 25 and is pushed elastically by thespring 26. - Means for activating the second actuation means are provided above the
plate 5 of the latch and are constituted by anoscillating plate 40, which is pivoted about acentral pivot 41, which engages anelongated slot 42 of the oscillating plate. - The oscillating plate has, at the end directed toward the
arm 14 of the L-shaped lever 10, a foldedabutment 43, which can be interposed between apusher abutment 14a of thearm 14 of thelever 10 and thesecond actuation tab 35. - As shown in Figure 1, in the open condition the folded
abutment 43 can be engaged by thesecond tab 35, so that by turning the lever-type handle from the outside the L-shaped lever 10 is turned, consequently opening the latch. - By arranging, by way of the key-operated means 50, the lock in the closure position, as shown in Figure 3, the
oscillating plate 40 oscillates so that the foldedabutment 43 disengages from thearm 35, and the consequent actuation of the lever-type handle from the outside is idle, so that the corresponding actuation of the L-shaped lever 10 does not occur. - To perform actuation, there are electrical means constituted by the
coil 60, the armature whereof is associated with anelement 61 for engagement with theoscillating plate 40 and pushes, by means of thespring 62, the oscillating plate into the disengagement position. - By activating the
coil 60, i.e., by activating the electrical means, said coil attracts the armature, which is connected to theelement 61, and consequently turns theoscillating plate 40, which arranges itsfold 43 in such a position that it is activated by thesecond tab 35, allowing opening from the outside by means of the lever-type handle. - The activation of the
coil 60 can be achieved with any means, such as for example an authorized card, an electronic key or any other element which allows authorized individuals to supply power to thecoil 60, consequently allowing to open the door from the outside. - A particular feature of the invention consists in that there are also means for manual actuation in order to open the latch by way of the key-operated means, which are provided by means of a
manual plate 70 fitted so that it can oscillate about amanual actuation pin 71, which engages anelongated slot 72, themanual plate 70 being provided with alateral tab 74, which can be engaged by theeccentric element 73 of the key. - By turning the key, due to the engagement of the
eccentric element 73 with thelateral tab 74, themanual plate 70 performs a translational motion and in turn engages by contact against theoscillating plate 40, which constitutes the means for activating the second actuation means, and consequently produces its translational motion, causing the oscillation of the L-shaped lever 10 and the consequent opening of thelatch 4. - From what has been described above, it is therefore evident that the proposed lock offers various possibilities of actuation and in fact, with the lock in the open position, from the outside it is possible to perform opening simply by means of the lever-type handle or, optionally, it is also possible to actuate the latch manually without resorting to the use of the lever-type handle, using instead the rotation of the key.
- Moreover, it is possible to perform opening from the outside without having the key acting on the key-operated means, but by having a card or, in any case, any other authorized element which activates the electrical means and, by attracting the armature of the
coil 60, positions theoscillating plate 40 so that it is engaged by thesecond tab 35, with the consequent possibility to turn the L-shaped lever 10, consequently opening thelatch 4. - It should be added to the above that the lock according to the invention is structurally very simple and is constituted by an extremely limited number of components, which interact with each other so as to increase the functionality of the lock.
- The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
- All the details may further be replaced with other technically equivalent elements.
- In practice, the materials used, as well as the contingent shapes and dimensions, may be any according to requirements.
- The disclosures in
Italian Patent Application No. MI2005A001279 - Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.
Claims (9)
- A lock for bar-type handles of safety doors with electrically-operated means for opening from the outside, comprising a box-like body which can be accommodated in a door and is provided with a closure latch which can be actuated from the inside by means of a bar-type or lever-type handle and from the outside by means of a lever-type handle controlled by key-operated means, means for actuating said latch being further provided which are connected to first actuation means associated with said bar-type handle and to second actuation means associated with said lever-type handle, characterized in that it comprises means for activating said second actuation means, which can be driven electrically, and manual actuation means for opening said latch by way of said key-operated means.
- The lock according to claim 1, characterized in that said first actuation means comprise a ratchet system of the bar-type handle which is provided with a square hole in which the square pin of said bar-type handle or lever-type handle engages, said ratchet system of the bar-type handle being provided with a first tab arranged at the second arm of the L-shaped lever which forms said latch actuation means.
- The lock according to the preceding claims, characterized in that said ratchet system of the bar-type handle is provided with a pusher arm on which a pusher spring acts, said spring abutting, at its other end, against the internal wall of said box-like body.
- The lock according to one or more of the preceding claims, characterized in that said second actuation means comprise a second ratchet system provided with a second actuation tab which is superimposed on said first tab and does not interfere directly with said second arm of said L-shaped lever, said second ratchet system being provided with a second pusher arm, against which said pusher spring acts.
- The lock according to one or more of the preceding claims, characterized in that said means for activating said second actuation means comprise an oscillating plate, which is pivoted about a central pin which engages an elongated slot of said oscillating plate, said oscillating plate forming, at the end thereof directed toward said L-shaped lever, a folded abutment which is adapted to interact with said second actuation tab in order to open said latch by means of said lever-type handle.
- The lock according to one or more of the preceding claims, characterized in that the arrangement of said oscillating plate is determined by said key-operated means.
- The lock according to one or more of the preceding claims, characterized in that it comprises electrical means which control said activation means and are constituted by a coil which is provided with an armature connected to an engagement element which can engage said oscillating lever, elastic means being further provided which are adapted to push said oscillating lever into a position of disengagement with said key-operated means in the closure position.
- The lock according to one or more of the preceding claims, characterized in that when the coil is supplied with power, said engagement element generates the rotation of said oscillating plate, with consequent engagement upon its abutment against said second tab.
- The lock according to one or more of the preceding claims, characterized in that said manual actuation means comprise a manual plate, which is mounted so that it can oscillate about a manual actuation pin which engages in an elongated slot of said manual plate, said manual plate being provided with a tab which can be engaged by the eccentric portion of the key-operated means for the translational motion of said manual plate, and of said oscillating plate which can be activated by said manual plate for opening said latch.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20051279 ITMI20051279A1 (en) | 2005-07-06 | 2005-07-06 | LOCK FOR HANDLES FOR SECURITY DOORS WITH OPENING MEANS FROM THE OUTSIDE THAT CAN BE ACTIVATED ELECTRICALLY |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1741857A2 true EP1741857A2 (en) | 2007-01-10 |
EP1741857A3 EP1741857A3 (en) | 2007-11-28 |
Family
ID=37308816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06005822A Withdrawn EP1741857A3 (en) | 2005-07-06 | 2006-03-22 | Electric lock for safety doors |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1741857A3 (en) |
IT (1) | ITMI20051279A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0425431A1 (en) | 1989-09-28 | 1991-05-02 | Schloss- und Beschlägefabrik AG | Lock |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2622720A1 (en) * | 1976-05-21 | 1977-11-24 | Bruno Matzanke | Door lock with card and solenoid actuation - has solenoid actuated clutch and photoelectric monitor for lock operation |
DE3620799A1 (en) * | 1985-08-12 | 1987-02-19 | Bauer Kaba Ag | Multi-function mortise lock |
ES1019766Y (en) * | 1991-12-27 | 1993-01-01 | Talleres De Escoriaza, S.A. (Tesa) | CLUTCH DEVICE FOR ELECTRIC LOCKS. |
AT399532B (en) * | 1993-04-07 | 1995-05-26 | Grundmann Schliesstechnik | Lock with lock cylinder and lockable latch |
DE29818458U1 (en) * | 1998-10-15 | 1999-01-07 | HEWI Heinrich Wilke GmbH, 34454 Bad Arolsen | Switching mechanism |
-
2005
- 2005-07-06 IT ITMI20051279 patent/ITMI20051279A1/en unknown
-
2006
- 2006-03-22 EP EP06005822A patent/EP1741857A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0425431A1 (en) | 1989-09-28 | 1991-05-02 | Schloss- und Beschlägefabrik AG | Lock |
Also Published As
Publication number | Publication date |
---|---|
ITMI20051279A1 (en) | 2007-01-07 |
EP1741857A3 (en) | 2007-11-28 |
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