EP2171187B1

EP2171187B1 - Lock for reinforced doors and the like comprising a selector

Info

Publication number: EP2171187B1
Application number: EP07805708A
Authority: EP
Inventors: Maurizio Naldoni; Fausto Fustini
Original assignee: CISA SpA
Current assignee: CISA SpA
Priority date: 2007-07-12
Filing date: 2007-07-12
Publication date: 2012-08-22
Anticipated expiration: 2027-07-12
Also published as: EA017821B1; EA201070134A1; WO2009008014A1; EP2171187A1; CN101743371A

Abstract

A selector (1) for locks for reinforced doors and the like, of the type that comprises a box-like containment body (2) which has suitable lateral openings (7) for the passage of at least one latch' and at least one bolt (8), the box-like body accommodating a plurality * of substantially laminar elements which are functionally associated with a cylinder, which is actuated by a respective key, and a rotating element for the engagement of a handle, which is associated with the at least one latch by means of lever systems and is designed to move the latch, and comprising a plate (10) which performs a translational motion and is functionally associated, in an upper region, with the rotatable element and, in a lower region, with a laminar element (11), which is rigidly coupled to the bolts (8)- by means of a carousel (12) which is pivoted, in another point, to the box-like body (2). The selector (1) further comprises a translational assembly (13), which can move between two extreme configurations upon selection by the user and is rigidly coupled to a plate (14) for coupling the laminar element (11) to the carousel (12), the plate (14) being functionally associated with the rotating and translatable element as a consequence of rotations of the handle in the rotating element, in the first extreme configuration of the assembly (13) the carousel (12) being pivoted to the plate (14) and being therefore rigidly coupled to the element (11) and in the second extreme configuration the carousel (12) and the plate (14) being separate and independent.

Description

Technical field

The present invention relates to a lock for reinforced doors and the like.

Background art

A reinforced door, typically used as an entrance door for apartments and offices, has suitable laminar reinforcement elements which are designed to provide overall stiffening and make it difficult to damage for break-in purposes.
For a door of this type, it is necessary to provide components which have the same degree of security against break-ins as the door itself: the hinges will be oversized (in order to bear the great weight of the door and withstand any break-in impacts), and the lock will provide bolts which protrude appropriately and are adapted to engage within respective selvages of the jamb which are particularly deep and rigidly coupled to the wall.
Locks of this type usually provide for the actuation of the latch by means of a handle (in some cases provided only on the inner side of the door and in other cases on both sides) and of the bolts by turning the key within the cylinder.
For some kinds of installation it is not possible to adopt this kind of lock, since specific legal requirements prescribe that the exit routes must have antipanic handles installed.
Known types of embodiment of locks for reinforced doors do not provide for the possibility to retract the bolts by operating the handle (or the panic bar): it must therefore be possible to lock the bolts in a retracted configuration for all the time during which the antipanic function is required (for as long as such enclosed space is occupied by people).
However, the adoption of this solution is not allowed by many standards, since the safety condition for the user is required to persist constantly.
There are known types of embodiment which allow to retract the bolts as a consequence of the rotation of the handle: however, these embodiments, by comprising a plurality of mutually associated components, entail the use of a box-like containment body which is very large (much larger than a standard lock for reinforced doors). For this reason, such locks for reinforced doors, suitable for use with an antipanic function, are adapted to be fitted only on doors which are provided specifically in order to contain them.
An evident problem of all locks which have an antipanic function is that such function makes the lock unsafe in case of theft within the room delimited by the door in which such lock is installed.
If the thief is able to enter the room (for example through a window), he can exit from the main door (even if the door is closed with multiple turns and therefore with the bolts fully extracted) because the rotation of the handle with antipanic function entails the retraction of the latch and of the bolts.
Examples of locks with antipanic function are available from the documents EP-0688930 A2 which discloses a lock according to the preamble of claim 1. Another lock including a selector for the antipanic function is known from the document WO 2007/00763 A1 .

Disclosure of the invention

The aim of the present invention is to provide a lock for reinforced doors and the like comprising an antipanic selector which is suitable for managing the behavior of the lock depending on the type of use which is set by the users themselves.
Within this aim, an object of the present invention is to provide a lock for reinforced doors and the like comprising an antipanic selector which has a low cost, is relatively simple to provide in practice, and safe in application.
This aim and this object, as well as others which will become better apparent hereinafter, are achieved by a lock for reinforced according to the present invention, that has the doors and the like, according to the present invention, that has the features set forth in claim 1.

Brief description of the drawings

Further characteristics and advantages of the invention will become better apparent from the following detailed description of a preferred but not exclusive embodiment of a lock for reinforced doors and the like, illustrated by way of non-limiting example in the accompanying drawings, wherein:

Figure 1 is a partially sectional perspective view of a lock, according to the present invention, for reinforced doors and the like provided with a selector in the configuration for enabling the antipanic function;
Figure 2 is a partially sectional perspective view of a lock, according to the invention, for reinforced doors and the like which is provided with a selector in the configuration for enabling the antipanic function;
Figure 3 is a partially sectional perspective view of a lock, according to the invention, for reinforced doors and the like which is provided with a selector in the configuration for disabling the antipanic function;
Figure 4 is a partially sectional perspective view of a lock according to the invention, for reinforced doors and the like provided with a selector in the configuration for disabling the antipanic function.

Ways of carrying_out the invention

With reference to the figures, the reference numeral 1 generally designates a lock for reinforced doors and the like.
The lock 1 for reinforced doors suitable for fitting a selector comprises a box-like containment body 2: the body 2 is substantially shaped like a parallelepiped, with two mutually opposite faces 3 which have a large surface and four lateral edges, an upper one 4, a lower one 5, a front one 6 and a rear one (not shown in the figure). The box-like body 2 can be provided by adopting the standard size specifications for this type of lock, with the advantage that it can be installed in any reinforced door without requiring any modification thereof.
The box-like body 2 is provided with suitable lateral openings 7 for the passage of at least one latch (not shown in the figure) and of at least one bolt 8: according to the embodiment shown in the figure, the at least one bolt 8 is constituted by four cylindrical elements, which are arranged parallel to each other and can slide transversely with respect to the lock. There are embodiments which adopt additional bolts which protrude from the upper edge 4 and from the lower edge 5 for association with link rods which are adapted to actuate pins which perform a translational motion with respect to the door and are arranged at any distance from the lock.
A plurality of substantially laminar elements are accommodated within the box-like body 2 and are functionally associated with a cylinder (only a seat 9 of which is visible in the figure), which is actuated by a respective key.
A rotating element (not shown in the figure) is also present within the body 2 for engaging a handle: said element is associated with the at least one latch by means of suitable lever systems of a known type which are designed to move said latch.
The lock further comprises a translational plate 10, which is functionally associated in an upper region with the rotating element and, in a lower region, with a laminar element 11, which is rigidly coupled to the bolts 8 by means of a carousel 12 which is pivoted, in another point, to the box-like body 2.
The selector comprises a translational assembly 13, which can move between two extreme configurations by user selection and is rigidly coupled to a plate 14 for coupling the laminar element 11 to the carousel 12.
The plate 14 is functionally associated with the rotating element and can perform a translational motion as a consequence of rotations of the handle within said element: in practice, each rotation of the handle entails a translational motion of the plate 14. When the plate 14 is coupled to the carousel 12, a movement thereof leads to a rotation of the carousel 12 and therefore to a retraction of the element 11, i.e., a retraction of the bolts 8.
In the first extreme configuration of the assembly 13 (which can be seen in Figures 1 and 2), the carousel 12 is pivoted to the plate 14 and therefore rigidly coupled to the element 11, and in the second extreme configuration (which can be seen in Figures 3 and 4) the carousel 12 and the plate 14 are separate and independent.
The translational assembly 13 comprises a bracket 13a which is provided with suitable slots 15 for accommodating pins 16 which are rigidly coupled to the body 2.
The slots 15 and the pins 16 are adapted to guide the bracket 13a during translational motion between the extreme configurations: in this manner, as can be seen clearly by viewing the figures, the plate 14 can move along a preset direction (vertically according to the figures) with a stroke whose maximum extent is equal to the length of the slots 15.
The assembly 13 is functionally associated with an actuation element 17, which can be actuated from the outside, even indirectly, and is designed to move it between the extreme configurations.
In particular, according to the embodiment shown in the figure, the actuation element 17 comprises a rotating plug 18, which can be accessed from the outside through an opening 19 of the box-like body 2 (according to the embodiment shown in the figure, the opening 19 is in the front edge 6).
The plug 18 has its end 20 directed toward the inside of the body 2 which is shaped appropriately and in direct contact with a protrusion 21 which is rigidly coupled to the bracket 13 a.
The contour of the end 20 determines the position of the bracket 13a in accordance with the angular position of the plug 18, and therefore the mutual coupling and uncoupling condition of the plate 14 and the carousel 12.
According to an alternative embodiment, the actuation element 17 comprises a sliding block, which can be accessed from the outside through an opening of the box-like body 2. In said sliding block, the end directed toward the inside of the body 2 is associated with the bracket 13a and the translational motion of the block determines the position of the bracket 13a and therefore the mutual coupling and uncoupling condition of the plate 14 and the carousel 12.
It is also possible to provide an embodiment in which the actuation element 17 is electromechanical: in this case, it comprises an actuator which is controlled, optionally even remotely, by a switch which has an end of the movable element coupled to the bracket 13a for its translational motion, thus determining the mutual coupling and uncoupling condition of the plate 14 and the carousel 12.
It is optionally also possible to provide an actuation element 17 which comprises an oscillating block, which can be accessed from the outside through an opening of the box-like body 2 and whose surface is directed toward the inside of the body 2 associated with the bracket 13a.
The rotation of the block with respect to the pivoting axis, in this case, determines the position of the bracket 13 a and therefore the mutual coupling and uncoupling condition of the plate 14 and the carousel 12: to the user, the oscillating block has the appearance of a switch, which can be arranged in two different configurations (with an appearance which is entirely similar to a switch of the type used in electrical systems).
The plate 14 for coupling to the carousel 12 comprises an open slot 22, which faces and is proximate to a pin 23 which is rigidly coupled to the carousel 12.
The pin 23 is accommodated within the slot 22 in one of said extreme configurations of the assembly 13 and is instead outside it in the other extreme configuration.
The operation of the selector according to the invention is as follows.
While keeping the actuation element 17 in a position which corresponds to a first extreme configuration, the bracket 13a is made to perform a translational motion toward the upper edge 4 of the body 2. In such conditions, the plate 14 also is raised and therefore the pin 23 lies outside the slot 22: the carousel 12 and the plate 14 are mutually uncoupled, and the carousel 12 can move freely; in this configuration, the lock does not perform the antipanic function and the bolts 8 can be retracted only by actuating the cylinder with the respective key. A movement of the handle, despite entailing a corresponding movement of the plate 14, is in fact not transmitted to the carousel 12, because these two elements are not mutually coupled.
When the actuation element 17 is arranged so as to determine the second extreme configuration, the bracket 13a is made to perform a translational motion toward the lower edge 5 of the body 2. In such conditions, the plate 14 also is lowered and therefore the pin 23 lies within the slot 22: the carousel 12 and the plate 14 are mutually coupled and the carousel 12 can move only rigidly with the plate 14; in this configuration, the lock performs the antipanic function and the bolts 8 can be retracted by simply actuating the handle. A movement of the handle in fact entails a corresponding movement of the plate 14, which is transmitted to the carousel 12 because these two elements are mutually coupled. The carousel 12 causes the retraction of the element 11 and therefore of the bolts 8.
It has thus been shown that the invention achieves the intended aim and objects therefore
The invention thus conceived is therefore susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.

Claims

A lock for reinforced doors and the like, comprising a box-like containment body (2) which has suitable lateral openings (7) for the passage of at least one latch and at least one bolt (8), said box-like containment body (2) accommodating a plurality of substantially laminar elements which are functionally associated with a cylinder, which is actuated by a respective key, and a rotating element for engagement of a handle, which is associated with said at least one latch by means of lever systems and is designed to move the latch, and comprising a translational plate (10) which performs a translational motion and is functionally associated, in an upper region, with said rotatable element and, in a lower region, with a laminar element (11), which is rigidly coupled to the bolt (8) by means of a carousel (12) which is pivoted, in another point, to said containment box-like body (2), characterized in that it comprises a selector that comprises a translational assembly (13), which can move between two extreme configurations upon selection by the user and is rigidly coupled to a plate (14) for coupling to the carousel (12), said plate (14) being functionally associated with said rotating element and translatable as a consequence of rotations of the handle within said rotating element, in the first extreme configuration of said translational assembly (13) said carousel (12) being pivoted to said plate (14) and being therefore rigidly coupled to said laminar element (11) and in the second extreme configuration said carousel (12) and said plate (14) being separate and independent.
The lock according to claim 1, characterized in that said translational assembly (13) comprises a bracket (13a) which is provided with suitable slots (15) for accommodating pins (16) which are rigidly coupled to the body (2), said slots (15) and said pins (16) being adapted to guide said bracket (13a) during the translational motion between said extreme configurations.
The lock according to claim 2, characterized in that said translational assembly (13) is functionally associated with an actuation element (17) which can be actuated from the outside even indirectly and is designed to move it between said extreme configurations.
The lock according to claim 3, characterized in that said actuation element (17) comprises a rotating plug (18), which can be accessed from the outside through an opening (19) of said box-like body (2), the end (20) of which is directed toward the inside of the body (2) and is conveniently shaped and in direct contact with a protrusion (21) which is rigidly coupled to said bracket (13a), the contour of the end (20) determining the position of said bracket (13a), in accordance with the angular position of said plug (18) and therefore the mutual coupling and uncoupling condition of the plate (14) and the carousel (12).
The lock according to claim 3, characterized in that said actuation element (17) comprises a sliding block which can be accessed from the outside through an opening of said box-like body (2), in which the end that is directed toward the inside of the body (2) is associated with said bracket (13a), the translational motion of the block determining the position of said bracket (13a) and therefore the mutual coupling and uncoupling condition of the plate (14) and the carousel (12).
The lock according to claim 3, characterized in that said actuation element (17) comprises an actuator which is controlled, optionally even remotely, by a switch, in which an end of the movable element mates with said bracket (13a) for its translational motion, thus determining the mutual coupling and uncoupling condition of the plate (14) and the carousel(12).
The lock according to claim 3, characterized in that said actuation element (17) comprises an oscillating block which can be accessed from the outside through an opening of said box-like body (2), in which the surface directed toward the inside of the body (2) is associated with said bracket (13a), the rotation of the block with respect to the pivoting axis determining the position of said bracket (13a) and thus the mutual coupling and uncoupling condition of the plate (14) and the carousel (12).
The lock according to one or more of the preceding claims, characterized in that said plate (14) for coupling to the carousel (12) comprises an open slot (22), which faces and is proximate to a pin (23) which is rigidly coupled to said carousel (12), said pin (23) being accommodated within said slot (22) in one of said extreme configurations of said assembly (13) and being external thereto in the other extreme configuration.