Magnetic lock for a window or door and adjustment method for a lock of a window or door

Abstract

A magnetic lock (1) for a door or window, comprising a lock body (2) installable inside an opening of a leaf and a rotary latch (3) hinged to the lock body (2). The rotary latch (3) is reversibly movable between a retracted position, in which it is housed inside the lock body (2), and at least one extracted position, in which it is at least partially projecting from the lock body (2) in order to be engaged inside a strike plate of the door or window, thereby defining a closed condition of the door or window. Furthermore, the magnetic lock (1) comprises locking means (4) selectively activatable on the rotary latch (3) to keep it in said at least one extracted position, thereby defining a locked condition of the rotary latch (3). In particular, the locking means (4) defines with the rotary latch (3) a play (G) such that the rotary latch (3) defines the closed condition of the door or window, the extracted position being adjusted based on the positioning of a limit stop portion of the strike plate.

Description

TECHNICAL FIELD

[0001] The present invention relates to a magnetic lock for a door or window and an adjustment method for a lock.

[0002] In particular, the present invention falls within the technical field of rotary latch locks.STATE OF THE ART

[0003] As known, a rotary latch lock is a type of lock that has a latch, usually mounted on the leaf of the door or window, movable in rotation with respect to the lock body in order to be engaged inside a strike plate arranged, generally, on the frame of the door or window.

[0004] In order to guarantee efficient closing of the door or window, the sizing of the latch and the strike plate must be particularly accurate. In particular, the latch and the strike plate must be sized so that the latch can be housed in the strike plate.

[0005] Disadvantageously, the need for accurate sizing makes this type of locks poorly adaptable, since the specific features of each single strike plate, for example the conical shape and / or the depth and / or the orientation, are sized for a specific latch.

[0006] Furthermore, the presence of any spaces and / or misalignments between the leaf and the frame have an impact on efficient closure of the lock, since they have a major influence on the distance / alignment between the latch and the strike plate.OBJECTS OF THE INVENTION

[0007] In this context, an object of the present invention is to provide a magnetic lock having a marked adaptability.

[0008] A further object of the present invention is to propose a magnetic lock for a door or window and an adjustment method for a lock that is capable of simplifying the installation procedures compared to the prior art.

[0009] Another object of the present invention is to provide a magnetic lock for a door or window and an adjustment method for a lock which guarantee an effective locking of the leaf.

[0010] The specified objects are substantially achieved by a magnetic lock for a door or window and an adjustment method for a lock which comprise the technical features set forth in one or more of the appended claims.

[0011] The dependent claims correspond to possible embodiments of the invention.BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Additional features and advantages of the present invention will emerge more clearly from the indicative, and thus non-limiting, description of a preferred but not exclusive embodiment of a magnetic lock for a door or a window as illustrated in the appended drawings, in which: Figures 1A-1B illustrate side views of a magnetic lock in accordance with the invention in two operating conditions; Figures 2A-2B illustrate, respectively, an enlarged view and a partial sectional view of two construction details of the lock shown in Figures 1A-1B; Figures 3A-4B illustrate a plurality of side views in accordance with respective operating conditions of the magnetic lock shown in Figures 1A-1B Figures 5A, 5B and 6 illustrate a plurality of side views in accordance with further possible embodiments of the magnetic lock in accordance with the present invention. DETAILED DESCRIPTION

[0013] With reference to the appended drawings, reference number 1 denotes, in its entirety, a magnetic lock for a door or window, which will also be referred to as magnetic lock 1 below.

[0014] The magnetic lock 1 comprises a lock body 2 installable inside an opening of a door or window leaf.

[0015] Furthermore, the magnetic lock 1 comprises a rotary latch 3 hinged to the lock body 2.

[0016] As illustrated in the appended drawings, the rotary latch 3 is reversibly movable between a retracted position (Figs. 1B, 3B, 4B), in which it is housed inside the lock body 2, and at least one extracted position (Figs. 1A, 3A, 4A, 5A, 5B, 6), in which it is at least partially projecting from the lock body 2 in order to be engaged inside a strike plate of the lock, thereby defining a closed condition of the door or window.

[0017] Preferably, in the retracted position the rotary latch 3 is completely housed inside the lock body 2.

[0018] The term "extracted position" is intended to indicate any condition in which the latch is at least partially projecting from the lock body 2.

[0019] The magnetic lock 1 comprises locking means 4 selectively activatable on the rotary latch 3 to keep it in said at least one extracted position, thereby defining a locked condition of the rotary latch 3.

[0020] In other words, the locking means 4 is configured to lock the rotary latch 3 in the extracted position, preventing a return thereof to the retracted position, in order to guarantee an efficient closing of the door or window. Advantageously, the locking means 4 locks the rotary latch 3 in the extracted position, at the same time maintaining a play "G" so that the latch can adapt the extent of its extracted position according to the shape of the strike plate, for example the conical shape and / or depth and / or orientation. In particular, the play "G" allows an efficient closing of the door or window to be guaranteed even in the presence of any spaces and / or misalignments between the leaf and the frame that lead to a variability in the distance between the latch and the strike plate.

[0021] In a further advantageous manner, the play "G" allows the magnetic lock 1 to be adapted both to strike plates provided with a magnetic extending parallel to the front of the lock (Figs. 5A, 5B) and to strike plates provided with a magnet extending transversely to the front of the lock (Fig. 6), the so-called inclined strike plates.

[0022] As illustrated in Figures 5A, 5B, the play "G" can allow the rotary latch 3 to assume an advanced position, in which it is more extracted from the lock body 2 (Fig. 5A), and a rearward position, in which it is extracted to a lesser extent from the lock body 2 (Fig. 5B).

[0023] Purely by way of non-limiting example, the rotary latch 3 can define a rotation with respect to the lock body comprised between 3° and 9°, preferably 5°, during a movement from the advanced position to the rearward position.

[0024] Such rotation can, for example, result in a play defining an arc with circumference comprised between 5 mm and 12 mm.

[0025] In accordance with the example illustrated, the magnetic lock 1 further comprises a control member 5 configured to activate the locking means 4 on the rotary latch 3. Preferably, the control member 5 is slidably coupled to the lock body 2.

[0026] For example, the control member 5 can be configured to slide along a locking direction "B", preferably parallel to the front of the lock.

[0027] By way of example, the locking direction "B" can be vertical.

[0028] In particular, the lock body 2 can comprise a guide operatively associated with the control member 5 to allow an easy movement thereof along the locking direction "B".

[0029] In accordance with the examples illustrated, the control member 5 can be at least partially housed inside the lock body 2.

[0030] With reference to the figures, preferably the locking means 4 is at least partially mounted on the control member 5.

[0031] Advantageously, the control member 5 can have a plate-like shape which allows the overall dimensions inside the lock body 2 to be minimised.

[0032] For example, the control member 5 can be obtained in the form of a moving blade.

[0033] In accordance with several possible embodiments and as illustrated in the appended figures, the locking means 4 can comprise a locking element 6 configured to abut at a distance equal to the play "G" from a corresponding locking portion 13 of the rotary latch. The locking element 6 is configured to intercept the re-entry stroke of the locking portion 13 so as to keep the rotary latch 3 in the locked condition, i.e. so as to prevent the rotary latch 3 from re-entering inside the lock body 2, despite allowing the latch itself to be adapted to the strike plate, in accordance with what has been explained above.

[0034] Preferably, the locking element 6 is projecting from the control member 5. For example, the locking element 6 can extend along a direction parallel to a rotation axis of the rotary latch 3.

[0035] In accordance with the examples illustrated, the control member 5 is reversibly switchable between an active condition (Figs. 1A, 5A, 5B, 6), in which the locking element 6 is arranged so as to intercept the re-entry stroke of the locking portion 13 of the latch, and an inactive condition (Figs. 1B, 3A, 3B, 4A, 4B), in which the locking element 6 does not intercept the aforesaid re-entry stroke, allowing the rotary latch to reach the retracted position.

[0036] In accordance with a further advantageous aspect and with reference to the step of retraction of the latch when the control member 5 is in the aforesaid inactive condition (Figures 3A, 4A), the magnetic lock 1 comprises a pushing element 8 activatable against a respective movement portion 15 of the rotary latch 3 to promote a movement thereof at least from the extracted position to the retracted position.

[0037] Preferably, the pushing element 8 can be mounted on the control member 5 which, as already said, is slidably coupled to the lock body 2. In particular, the control member 5 is reversibly movable along a pushing direction "S" (Figure 5A) in order to promote an activation of the pushing element 8 so as to drag the movement portion 15 of the rotary latch 3 into movement.

[0038] Preferably, the pushing element 8 moves along a trajectory substantially orthogonal to the rotation axis of the rotary latch 3. In other words, the pushing element 8 is aligned at the hinge point of the rotary latch 3 to the lock body. For example, the pushing direction "S" can be vertical.

[0039] As illustrated in the appended figures, the control member 5 is moved along the pushing direction "S" by actuating means 9.

[0040] In more detail, the actuating means 9 comprises an actuating body 10, typically a hook, operatively associated with at least one actuating portion 11, typically a tooth, of the control member 5, in order to move it along the pushing direction "S". Preferably, said actuating portion 11 is made in one piece with the locking element 6 previously explained.

[0041] In accordance with the examples illustrated, the magnetic lock 1 comprises a handle kinematically connected to the actuating body 10.

[0042] In accordance with a further advantageous aspect and when the control member is in the aforesaid active condition (Figures 1A, 5A, 5B and 6), the magnetic lock 1 comprises switching means 7 active on the control member 5 in order to switch it between the active condition and the inactive condition, moving the locking element 6 away from the re-entry stroke of the locking portion 13 of the rotary latch 3, which is therefore in a condition to be able to re-enter into the lock body 2. For example, said switching means 7 comprises a rotary actuator, defined by a key or by a lever of a so-called bathroom-knob or, further, by a catch of a so-called bathroom-cylinder.

[0043] With reference to the figures, preferably the re-entry of the latch can be controlled alternately by the actuating means 9, for example by means of a handle that controls the actuating body 10 (Figure 3B), or by means of the switching means 7; in this last case, a first part of rotation of the rotary actuator causes the movement of the control member 5 into the inactive condition (Figure 4A), whereas a second part of rotation of the rotary actuator causes the further movement of the control member 5, so as to activate the pushing element 8 against the pushing portion 15, thus causing the rotary latch 3 to re-enter into the lock body 2 (Figure 4B). With particular reference to Figure 2B, the magnetic lock 1 can comprise a magnetic and / or ferromagnetic element 12 mounted on the rotary latch 3. Preferably, the magnetic and / or ferromagnetic element 12 has a first magnetic pole "PM1" which, when facing the strike plate, can interact with the strike plate, generating a magnetic motor force "FMM" (Fig. 2B) adapted to promote a movement of the rotary latch 3 from the retracted position to the extracted position.

[0044] Purely by way of non-limiting example, the magnetic and / or ferromagnetic element 12 can be made at least partially of neodymium.

[0045] Advantageously, the magnetic and / or ferromagnetic element 12 has a second magnetic pole "PM2" opposite the first magnetic pole "PM1" along a direction of extension of the magnetic element and configured always to abut in a position more distant from the front plate 7 with respect to the first magnetic pole "PM1", both when the latch is in extracted position and when the latch is in retracted position. In other words, and with reference to Figure 2B, the magnetic and / or ferromagnetic element 12 is sized so that a distance "L1" between the first magnetic pole "PM1" and the front plate 7 is lower than a distance "L2" between the second magnetic pole "PM2" and said front plate 7.

[0046] Advantageously, such a sizing of the magnetic and / or ferromagnetic element 12 favours the magnetic interaction between the first magnetic pole "PM1" and the front plate 7, generating a magnetic anchoring force "FMA", at the expense of the magnetic interaction between the second magnetic pole "PM2" and said front plate 7. In this manner, it is possible to maintain the rotary latch 3 in retracted position when it is not facing the strike plate, and / or allows the latch to return into the retracted position if accidentally extracted.

[0047] In accordance with one aspect of the invention, in the retracted position of the rotary latch 3, the magnetic motor force "FFM" is greater than the magnetic anchoring force "FMA". In this manner, when the rotary latch 3 is facing the strike plate, the magnetic motor force "FFM" being greater than the magnetic anchoring force "FMA" causes the rotary latch 3 to assume the extracted position.

[0048] Advantageously, the magnetic lock 1 can comprise a strike plate 14 configured to be mounted on a frame of the door or window.

[0049] The strike plate 14 can have a magnet extending parallel to the front of the lock (Figs. 5A, 5B) and / or a magnet inclined with respect to the front of the lock (Fig. 6).

[0050] The aforesaid play "G" allows the rotary latch 3 to abut against a limit stop portion of the strike plate 14 in order to define the condition of closing of the lock independently of the shape of the strike plate.

[0051] With particular reference to Figures 5A, 5B, the strike plate 14 with parallel magnet is shaped so as to have a median axis "M" whereby, when the strike plate 14 is installed on a frame of a door or window, the extension of such median axis "M" intersects a handle spindle bar "Q" of the lock 1.

[0052] In this manner, it is possible to perform a reversible installation of the door or window, where "reversible installation" means the possibility that the leaf of the door or window opens to the right or to the left (if looked at face-on and from the same side). In fact, the aforesaid shape of the strike plate allows the strike plate itself to be overturned inside its own housing seat (milled seat) in a frame, without therefore needing to replace or reprocess the frame itself.

[0053] The present invention therefore provides a magnetic lock adaptable to strike plates of different type.

[0054] With reference to the appended figures, the operation of a possible embodiment of the present invention is described below. Figure 1B shows an operating condition of the magnetic lock 1 in which the rotary latch 3 is in the retracted position and the control member 5 is in the inactive position. Subsequently to the magnetic interaction between the rotary latch 3 and the strike plate 14, the rotary latch 3 is arranged in the extracted position and the control member 5 remains in the inactive position (Fig. 3A). Activation of the switching means 7, for example through rotation of the rotary actuator (e.g., a key), causes the switching of the control member 5 from the inactive position to the active position (Fig. 1A), in which the locking element prevents re-entry of the rotary latch 3. In this operating condition, the rotary latch 3 is, generally, engaged inside the strike plate 14 (Figs. 5A, 5B, 6). Subsequently, the user can proceed to open the door or window by once again activating the switching means 7 so as to switch the control member 5 from the active position to the inactive position (Fig. 4A). In this case, a first part of rotation of the rotary actuator causes the movement of the control member 5 into the inactive position; a second part of rotation of the rotary actuator causes the further movement of the control member 5, so as to activate the pushing element 8 against the pushing portion 15, thus making the rotary latch 3 re-enter inside the lock body 2 (Fig. 4B). Alternatively to the second part of rotation of the rotary actuator, the user can use a handle to activate the actuating means 9 through which the control member 5 is moved along the pushing direction "S", promoting re-entry of the rotary latch 3 inside the lock body 2 (Fig. 3B). After release of the handle, the magnetic lock 1 returns to the operating condition shown in Figure 1B.

[0055] In accordance with a further aspect, the present invention relates to an adjustment method for a lock of a door or window, comprising the steps of arranging a rotary latch of a magnetic lock facing the strike plate of the lock and moving it from a retracted position to at least one extracted position to insert it into the strike plate.

[0056] Furthermore, the method comprises a step of moving the rotary latch until it is brought up against a limit stop portion of the strike plate, adapting the at least one extracted position to a shape of the strike plate.

[0057] The method comprises a step of locking the rotary lock in the at least one extracted position defining a locked condition of the rotary latch and defining a play that allows a movement of the latch in the locked condition. Furthermore, the method comprises a step of arranging a magnetic lock 1 in accordance with what has been described above and performing at least one of the steps with said lock.

Examples

Embodiment Construction

[0013]With reference to the appended drawings, reference number 1 denotes, in its entirety, a magnetic lock for a door or window, which will also be referred to as magnetic lock 1 below.

[0014]The magnetic lock 1 comprises a lock body 2 installable inside an opening of a door or window leaf.

[0015]Furthermore, the magnetic lock 1 comprises a rotary latch 3 hinged to the lock body 2.

[0016]As illustrated in the appended drawings, the rotary latch 3 is reversibly movable between a retracted position (Figs. 1B, 3B, 4B), in which it is housed inside the lock body 2, and at least one extracted position (Figs. 1A, 3A, 4A, 5A, 5B, 6), in which it is at least partially projecting from the lock body 2 in order to be engaged inside a strike plate of the lock, thereby defining a closed condition of the door or window.

[0017]Preferably, in the retracted position the rotary latch 3 is completely housed inside the lock body 2.

[0018]The term "extracted position" is intended to indicate any condition i...

TECHNICAL FIELD

[0001] The present invention relates to a magnetic lock for a door or window and an adjustment method for a lock.

[0002] In particular, the present invention falls within the technical field of rotary latch locks.STATE OF THE ART

[0003] As known, a rotary latch lock is a type of lock that has a latch, usually mounted on the leaf of the door or window, movable in rotation with respect to the lock body in order to be engaged inside a strike plate arranged, generally, on the frame of the door or window.

[0004] In order to guarantee efficient closing of the door or window, the sizing of the latch and the strike plate must be particularly accurate. In particular, the latch and the strike plate must be sized so that the latch can be housed in the strike plate.

[0005] Disadvantageously, the need for accurate sizing makes this type of locks poorly adaptable, since the specific features of each single strike plate, for example the conical shape and / or the depth and / or the orientation, are sized for a specific latch.

[0006] Furthermore, the presence of any spaces and / or misalignments between the leaf and the frame have an impact on efficient closure of the lock, since they have a major influence on the distance / alignment between the latch and the strike plate.OBJECTS OF THE INVENTION

[0007] In this context, an object of the present invention is to provide a magnetic lock having a marked adaptability.

[0008] A further object of the present invention is to propose a magnetic lock for a door or window and an adjustment method for a lock that is capable of simplifying the installation procedures compared to the prior art.

[0009] Another object of the present invention is to provide a magnetic lock for a door or window and an adjustment method for a lock which guarantee an effective locking of the leaf.

[0010] The specified objects are substantially achieved by a magnetic lock for a door or window and an adjustment method for a lock which comprise the technical features set forth in one or more of the appended claims.

[0011] The dependent claims correspond to possible embodiments of the invention.BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Additional features and advantages of the present invention will emerge more clearly from the indicative, and thus non-limiting, description of a preferred but not exclusive embodiment of a magnetic lock for a door or a window as illustrated in the appended drawings, in which: Figures 1A-1B illustrate side views of a magnetic lock in accordance with the invention in two operating conditions; Figures 2A-2B illustrate, respectively, an enlarged view and a partial sectional view of two construction details of the lock shown in Figures 1A-1B; Figures 3A-4B illustrate a plurality of side views in accordance with respective operating conditions of the magnetic lock shown in Figures 1A-1B Figures 5A, 5B and 6 illustrate a plurality of side views in accordance with further possible embodiments of the magnetic lock in accordance with the present invention. DETAILED DESCRIPTION

[0013] With reference to the appended drawings, reference number 1 denotes, in its entirety, a magnetic lock for a door or window, which will also be referred to as magnetic lock 1 below.

[0014] The magnetic lock 1 comprises a lock body 2 installable inside an opening of a door or window leaf.

[0015] Furthermore, the magnetic lock 1 comprises a rotary latch 3 hinged to the lock body 2.

[0016] As illustrated in the appended drawings, the rotary latch 3 is reversibly movable between a retracted position (Figs. 1B, 3B, 4B), in which it is housed inside the lock body 2, and at least one extracted position (Figs. 1A, 3A, 4A, 5A, 5B, 6), in which it is at least partially projecting from the lock body 2 in order to be engaged inside a strike plate of the lock, thereby defining a closed condition of the door or window.

[0017] Preferably, in the retracted position the rotary latch 3 is completely housed inside the lock body 2.

[0018] The term "extracted position" is intended to indicate any condition in which the latch is at least partially projecting from the lock body 2.

[0019] The magnetic lock 1 comprises locking means 4 selectively activatable on the rotary latch 3 to keep it in said at least one extracted position, thereby defining a locked condition of the rotary latch 3.

[0020] In other words, the locking means 4 is configured to lock the rotary latch 3 in the extracted position, preventing a return thereof to the retracted position, in order to guarantee an efficient closing of the door or window. Advantageously, the locking means 4 locks the rotary latch 3 in the extracted position, at the same time maintaining a play "G" so that the latch can adapt the extent of its extracted position according to the shape of the strike plate, for example the conical shape and / or depth and / or orientation. In particular, the play "G" allows an efficient closing of the door or window to be guaranteed even in the presence of any spaces and / or misalignments between the leaf and the frame that lead to a variability in the distance between the latch and the strike plate.

[0021] In a further advantageous manner, the play "G" allows the magnetic lock 1 to be adapted both to strike plates provided with a magnetic extending parallel to the front of the lock (Figs. 5A, 5B) and to strike plates provided with a magnet extending transversely to the front of the lock (Fig. 6), the so-called inclined strike plates.

[0022] As illustrated in Figures 5A, 5B, the play "G" can allow the rotary latch 3 to assume an advanced position, in which it is more extracted from the lock body 2 (Fig. 5A), and a rearward position, in which it is extracted to a lesser extent from the lock body 2 (Fig. 5B).

[0023] Purely by way of non-limiting example, the rotary latch 3 can define a rotation with respect to the lock body comprised between 3° and 9°, preferably 5°, during a movement from the advanced position to the rearward position.

[0024] Such rotation can, for example, result in a play defining an arc with circumference comprised between 5 mm and 12 mm.

[0025] In accordance with the example illustrated, the magnetic lock 1 further comprises a control member 5 configured to activate the locking means 4 on the rotary latch 3. Preferably, the control member 5 is slidably coupled to the lock body 2.

[0026] For example, the control member 5 can be configured to slide along a locking direction "B", preferably parallel to the front of the lock.

[0027] By way of example, the locking direction "B" can be vertical.

[0028] In particular, the lock body 2 can comprise a guide operatively associated with the control member 5 to allow an easy movement thereof along the locking direction "B".

[0029] In accordance with the examples illustrated, the control member 5 can be at least partially housed inside the lock body 2.

[0030] With reference to the figures, preferably the locking means 4 is at least partially mounted on the control member 5.

[0031] Advantageously, the control member 5 can have a plate-like shape which allows the overall dimensions inside the lock body 2 to be minimised.

[0032] For example, the control member 5 can be obtained in the form of a moving blade.

[0033] In accordance with several possible embodiments and as illustrated in the appended figures, the locking means 4 can comprise a locking element 6 configured to abut at a distance equal to the play "G" from a corresponding locking portion 13 of the rotary latch. The locking element 6 is configured to intercept the re-entry stroke of the locking portion 13 so as to keep the rotary latch 3 in the locked condition, i.e. so as to prevent the rotary latch 3 from re-entering inside the lock body 2, despite allowing the latch itself to be adapted to the strike plate, in accordance with what has been explained above.

[0034] Preferably, the locking element 6 is projecting from the control member 5. For example, the locking element 6 can extend along a direction parallel to a rotation axis of the rotary latch 3.

[0035] In accordance with the examples illustrated, the control member 5 is reversibly switchable between an active condition (Figs. 1A, 5A, 5B, 6), in which the locking element 6 is arranged so as to intercept the re-entry stroke of the locking portion 13 of the latch, and an inactive condition (Figs. 1B, 3A, 3B, 4A, 4B), in which the locking element 6 does not intercept the aforesaid re-entry stroke, allowing the rotary latch to reach the retracted position.

[0036] In accordance with a further advantageous aspect and with reference to the step of retraction of the latch when the control member 5 is in the aforesaid inactive condition (Figures 3A, 4A), the magnetic lock 1 comprises a pushing element 8 activatable against a respective movement portion 15 of the rotary latch 3 to promote a movement thereof at least from the extracted position to the retracted position.

[0037] Preferably, the pushing element 8 can be mounted on the control member 5 which, as already said, is slidably coupled to the lock body 2. In particular, the control member 5 is reversibly movable along a pushing direction "S" (Figure 5A) in order to promote an activation of the pushing element 8 so as to drag the movement portion 15 of the rotary latch 3 into movement.

[0038] Preferably, the pushing element 8 moves along a trajectory substantially orthogonal to the rotation axis of the rotary latch 3. In other words, the pushing element 8 is aligned at the hinge point of the rotary latch 3 to the lock body. For example, the pushing direction "S" can be vertical.

[0039] As illustrated in the appended figures, the control member 5 is moved along the pushing direction "S" by actuating means 9.

[0040] In more detail, the actuating means 9 comprises an actuating body 10, typically a hook, operatively associated with at least one actuating portion 11, typically a tooth, of the control member 5, in order to move it along the pushing direction "S". Preferably, said actuating portion 11 is made in one piece with the locking element 6 previously explained.

[0041] In accordance with the examples illustrated, the magnetic lock 1 comprises a handle kinematically connected to the actuating body 10.

[0042] In accordance with a further advantageous aspect and when the control member is in the aforesaid active condition (Figures 1A, 5A, 5B and 6), the magnetic lock 1 comprises switching means 7 active on the control member 5 in order to switch it between the active condition and the inactive condition, moving the locking element 6 away from the re-entry stroke of the locking portion 13 of the rotary latch 3, which is therefore in a condition to be able to re-enter into the lock body 2. For example, said switching means 7 comprises a rotary actuator, defined by a key or by a lever of a so-called bathroom-knob or, further, by a catch of a so-called bathroom-cylinder.

[0043] With reference to the figures, preferably the re-entry of the latch can be controlled alternately by the actuating means 9, for example by means of a handle that controls the actuating body 10 (Figure 3B), or by means of the switching means 7; in this last case, a first part of rotation of the rotary actuator causes the movement of the control member 5 into the inactive condition (Figure 4A), whereas a second part of rotation of the rotary actuator causes the further movement of the control member 5, so as to activate the pushing element 8 against the pushing portion 15, thus causing the rotary latch 3 to re-enter into the lock body 2 (Figure 4B). With particular reference to Figure 2B, the magnetic lock 1 can comprise a magnetic and / or ferromagnetic element 12 mounted on the rotary latch 3. Preferably, the magnetic and / or ferromagnetic element 12 has a first magnetic pole "PM1" which, when facing the strike plate, can interact with the strike plate, generating a magnetic motor force "FMM" (Fig. 2B) adapted to promote a movement of the rotary latch 3 from the retracted position to the extracted position.

[0044] Purely by way of non-limiting example, the magnetic and / or ferromagnetic element 12 can be made at least partially of neodymium.

[0045] Advantageously, the magnetic and / or ferromagnetic element 12 has a second magnetic pole "PM2" opposite the first magnetic pole "PM1" along a direction of extension of the magnetic element and configured always to abut in a position more distant from the front plate 7 with respect to the first magnetic pole "PM1", both when the latch is in extracted position and when the latch is in retracted position. In other words, and with reference to Figure 2B, the magnetic and / or ferromagnetic element 12 is sized so that a distance "L1" between the first magnetic pole "PM1" and the front plate 7 is lower than a distance "L2" between the second magnetic pole "PM2" and said front plate 7.

[0046] Advantageously, such a sizing of the magnetic and / or ferromagnetic element 12 favours the magnetic interaction between the first magnetic pole "PM1" and the front plate 7, generating a magnetic anchoring force "FMA", at the expense of the magnetic interaction between the second magnetic pole "PM2" and said front plate 7. In this manner, it is possible to maintain the rotary latch 3 in retracted position when it is not facing the strike plate, and / or allows the latch to return into the retracted position if accidentally extracted.

[0047] In accordance with one aspect of the invention, in the retracted position of the rotary latch 3, the magnetic motor force "FFM" is greater than the magnetic anchoring force "FMA". In this manner, when the rotary latch 3 is facing the strike plate, the magnetic motor force "FFM" being greater than the magnetic anchoring force "FMA" causes the rotary latch 3 to assume the extracted position.

[0048] Advantageously, the magnetic lock 1 can comprise a strike plate 14 configured to be mounted on a frame of the door or window.

[0049] The strike plate 14 can have a magnet extending parallel to the front of the lock (Figs. 5A, 5B) and / or a magnet inclined with respect to the front of the lock (Fig. 6).

[0050] The aforesaid play "G" allows the rotary latch 3 to abut against a limit stop portion of the strike plate 14 in order to define the condition of closing of the lock independently of the shape of the strike plate.

[0051] With particular reference to Figures 5A, 5B, the strike plate 14 with parallel magnet is shaped so as to have a median axis "M" whereby, when the strike plate 14 is installed on a frame of a door or window, the extension of such median axis "M" intersects a handle spindle bar "Q" of the lock 1.

[0052] In this manner, it is possible to perform a reversible installation of the door or window, where "reversible installation" means the possibility that the leaf of the door or window opens to the right or to the left (if looked at face-on and from the same side). In fact, the aforesaid shape of the strike plate allows the strike plate itself to be overturned inside its own housing seat (milled seat) in a frame, without therefore needing to replace or reprocess the frame itself.

[0053] The present invention therefore provides a magnetic lock adaptable to strike plates of different type.

[0054] With reference to the appended figures, the operation of a possible embodiment of the present invention is described below. Figure 1B shows an operating condition of the magnetic lock 1 in which the rotary latch 3 is in the retracted position and the control member 5 is in the inactive position. Subsequently to the magnetic interaction between the rotary latch 3 and the strike plate 14, the rotary latch 3 is arranged in the extracted position and the control member 5 remains in the inactive position (Fig. 3A). Activation of the switching means 7, for example through rotation of the rotary actuator (e.g., a key), causes the switching of the control member 5 from the inactive position to the active position (Fig. 1A), in which the locking element prevents re-entry of the rotary latch 3. In this operating condition, the rotary latch 3 is, generally, engaged inside the strike plate 14 (Figs. 5A, 5B, 6). Subsequently, the user can proceed to open the door or window by once again activating the switching means 7 so as to switch the control member 5 from the active position to the inactive position (Fig. 4A). In this case, a first part of rotation of the rotary actuator causes the movement of the control member 5 into the inactive position; a second part of rotation of the rotary actuator causes the further movement of the control member 5, so as to activate the pushing element 8 against the pushing portion 15, thus making the rotary latch 3 re-enter inside the lock body 2 (Fig. 4B). Alternatively to the second part of rotation of the rotary actuator, the user can use a handle to activate the actuating means 9 through which the control member 5 is moved along the pushing direction "S", promoting re-entry of the rotary latch 3 inside the lock body 2 (Fig. 3B). After release of the handle, the magnetic lock 1 returns to the operating condition shown in Figure 1B.

[0055] In accordance with a further aspect, the present invention relates to an adjustment method for a lock of a door or window, comprising the steps of arranging a rotary latch of a magnetic lock facing the strike plate of the lock and moving it from a retracted position to at least one extracted position to insert it into the strike plate.

[0056] Furthermore, the method comprises a step of moving the rotary latch until it is brought up against a limit stop portion of the strike plate, adapting the at least one extracted position to a shape of the strike plate.

[0057] The method comprises a step of locking the rotary lock in the at least one extracted position defining a locked condition of the rotary latch and defining a play that allows a movement of the latch in the locked condition. Furthermore, the method comprises a step of arranging a magnetic lock 1 in accordance with what has been described above and performing at least one of the steps with said lock.

Examples

Embodiment Construction

[0013]With reference to the appended drawings, reference number 1 denotes, in its entirety, a magnetic lock for a door or window, which will also be referred to as magnetic lock 1 below.

[0014]The magnetic lock 1 comprises a lock body 2 installable inside an opening of a door or window leaf.

[0015]Furthermore, the magnetic lock 1 comprises a rotary latch 3 hinged to the lock body 2.

[0016]As illustrated in the appended drawings, the rotary latch 3 is reversibly movable between a retracted position (Figs. 1B, 3B, 4B), in which it is housed inside the lock body 2, and at least one extracted position (Figs. 1A, 3A, 4A, 5A, 5B, 6), in which it is at least partially projecting from the lock body 2 in order to be engaged inside a strike plate of the lock, thereby defining a closed condition of the door or window.

[0017]Preferably, in the retracted position the rotary latch 3 is completely housed inside the lock body 2.

[0018]The term "extracted position" is intended to indicate any condition i...

Claims

1. A magnetic lock (1) for a door or window, said magnetic lock (1) comprising: - a lock body (2) installable inside an opening of a door or window leaf; - a rotary latch (3) hinged to the lock body (2), said rotary latch (3) being reversibly movable between a retracted position, in which it is housed inside the lock body (2), and at least one extracted position, in which it is at least partially projecting from the lock body (2) in order to be engaged inside a strike plate, thereby defining a closed condition of the door or window; - a locking means (4) selectively activatable on the rotary latch (3) to keep it in said at least an extracted position, thereby defining a locked condition of said rotary latch (3); and wherein said locking means (4) defines with the rotary latch (3) a play (G) such that the rotary latch (3) defines the closed condition of the door or window, the extracted position being adjusted based on the positioning of a limit stop portion of the strike plate.

2. The lock in accordance with claim 1, wherein said play (G) enables a movement of said rotary latch (3) between a forward position, in which it is extracted to a greater degree from said lock body (2), and a rearward position, in which it is extracted to a lesser degree from said lock body (2).

3. The lock in accordance with claim 2, wherein said rotary latch (3) defines a rotation relative to said lock body (2) comprised between 3° and 9°, preferably 5°, during a movement from said forward position to said rearward position.

4. The lock in accordance with one or more of the preceding claims, comprising a control member (5) configured to activate said locking means (4) and wherein said locking means (4) is at least partially mounted on said control member (5).

5. The lock in accordance with claim 4, wherein said locking means (4) comprises a locking element (6) configured to define an interference with a re-entry stroke of the rotary latch (3) so as to keep it in said locked condition, said locking element (6) being mounted on said control member (5); and wherein said control member (5) is reversibly switchable between an active condition, in which said locking element (6) defines said interference, and an inactive condition, in which said locking element (6) does not generate said interference, thus allowing said rotary latch (3) to reach said retracted position.

6. The lock in accordance with claim 5, wherein said locking element (6) is projecting from said control member (5), said locking element (6) extending along a direction parallel to a rotation axis of said rotary latch (3).

7. The lock in accordance with one or more of claims 4-6, comprising a pushing element (8) activatable against a respective movement portion (15) of the rotary latch (3) to promote a movement of the rotary latch (3) at least from the extracted position to the retracted position, said pushing element (8) being mounted on said control member (5); and wherein said control member (5) is reversibly movable along a pushing direction (S) in order to promote an activation of the pushing element (8) on said rotary latch (3).

8. The lock in accordance with claim 7, comprising an actuating means (9) configured to move said control member (5) along said pushing direction (S), said actuating means (9) comprising at least one actuating body (10) operatively associated with at least one actuating portion (11) of said control member (5) in order to move said control member (5) along said pushing direction (S); and wherein said actuating means (9) preferably comprises a handle.

9. The lock in accordance with claim 7 or 8 when dependent on claim 5 or 6, comprising a switching means (7) active on said control member (5) in order to reversibly switch it between said active condition and said inactive condition, said switching means (7) comprising a rotary actuator; preferably wherein a first part of rotation of the rotary actuator brings about a switching of said control member (5) between said active condition and said inactive condition; and wherein a second part of rotation of the rotary actuator brings about a movement of said control member (5) along said pushing direction (S) in order to promote an activation of the pushing element (8) on said rotary latch (3).

10. The lock in accordance with one or more of the preceding claims, comprising a magnetic and / or ferromagnetic element (12) mounted on said rotary latch (3), said magnetic and / or ferromagnetic element (12) having a first magnetic pole (PM1) which, when facing the strike plate, is configured to interact with the strike plate, thereby generating a magnetic motor force (FMM) adapted to promote a movement of said rotary latch (3) from the retracted position to the extracted position.

11. The lock in accordance with claim 10, wherein said magnetic and / or ferromagnetic element (12) has a second magnetic pole (PM2) opposite the first magnetic pole (PM1) along a direction of extension of the magnetic and / or ferromagnetic element (12) and arranged in such a way that the distance (L1) between the first magnetic pole (PM1) and the front plate (7) is less than a distance (L2) between the second magnetic pole (PM2) and said front plate (7) to favour magnetic interaction between the first magnetic pole (PM1) and the front plate (7), thereby generating an magnetic anchoring force (FMA) .

12. The lock in accordance with claim 11, wherein, in said retracted position of said rotary latch (3), said magnetic motor force (FMM) is greater than said magnetic anchoring force (FMA).

13. The lock in accordance with one or more of the preceding claims, comprising a strike plate configured to be mounted on a frame of the door or window, said strike plate (14) being operatively associated with said rotary latch (3) so as to define said closed condition of the door or window; wherein said strike plate has a magnet extending parallel to the front of the lock and / or a magnet that is inclined relative to the front of the lock.

14. The lock in accordance with claim 13, wherein said rotary latch (3) is configured to abut against a limit stop portion internally defined by the strike plate in order to define the closed condition of the door or window.

15. The lock in accordance with claim 13 or 14, wherein said strike plate (14) is of the parallel magnet type and is configured so as to have a median axis (M) whereby, when the parallel strike plate (4) is installed on a frame of a door or window, the extension of the median axis (M) intersects a handle spindle bar (Q) of the lock (1).

16. An adjustment method for a lock of a door or window, comprising the steps of: - placing said rotary latch (3) so that it is facing the strike plate of the door or window; - moving said rotary latch (3) from said retracted position to said at least one extracted position in order to insert said rotary latch (3) into said strike plate; - in said at least one extracted position, moving said rotary latch (3) until bringing it up against a limit stop portion of the strike plate, thereby adapting said at least one extracted position to a configuration of the strike plate; - locking said rotary latch (3) in said at least one extracted position, thereby defining a locked condition of said rotary latch (3); - defining a play (G) that permits a movement of the latch in the locked condition.

Images