Lock

Abstract

The present application provides a lock, the housing being a first embedded portion of the lock, which is to be embedded into a corresponding cut-out obtained in a door leaf. The counter housing or strike plate is a second embedded part of the lock, which is to be embedded into a corresponding cut-out obtained in the door frame or additional door leaf. A latch equipped at one end with a latch latch portion is housed in the housing, the latch being movable between a first retracted position and a second partially extracted position. At least the first embedding part or at least the second embedding part comprises a corresponding covering element of the corresponding front face, and the covering element is provided with a through hole corresponding to the through hole of the front face of the corresponding embedding part. When the cover element is placed adjacent to the respective front face, a magnetic interaction means between said cover element of the lock and the respective embedded portion acts as means for associating and / or fastening said cover element to the respective embedded portion in a removable manner.

Description

Technical Field

[0001] The object of the invention is a lock having a covering element of the front face of its embedded part. Background Art

[0002] The lock generally comprises a housing which can be inserted into a cut-out obtained in the door leaf and a counter-housing (strike plate) which can be inserted into a cut-out obtained in the door frame or in an additional door leaf. The latch, which is equipped at one end with a latch bolt, is movable between a retracted position in the housing, in which the latch bolt is located inside the housing, and a position partially extracted from the housing, in which the latch bolt is extracted from the housing and, when the door leaf is closed against the door frame or a corresponding second door leaf, is inserted into a corresponding seat made in the counter-housing (or strike plate). The engagement of the latch bolt in the corresponding seat enables mechanical re-locking and the door cannot be opened by merely pressing on the door leaf, so that the use of the handle is required.

[0003] The housing refers to the part of the lock that can be embedded in the door leaf. Conversely, the corresponding counter housing (or strike plate) refers to the part of the lock that can be embedded in the door frame or any additional door leaf.

[0004] Both embedded parts of the lock have a respective front face, which is provided with through holes for the passage of the latch and / or the respective latch bolt. With the door closed, the front faces of the two embedded parts of the lock (housing and respective counter-housing or strike plate) face each other, and the respective through holes for the latch bolt are positioned corresponding to each other. The front faces of the two embedded parts of the lock usually include functional elements visible on the front face itself (such as holes for fastening screws, abutment and blocking elements, etc.), which leads to a non-optimal visual effect when the door is open and the front faces are therefore visible.

[0005] In order to solve this problem, it is known to apply a covering element on the front face in question, which covering element is also equipped with a through hole corresponding to the through hole made in the front face for the latch bolt to pass through. The covering element is fastened to the front face by means of locking or engaging mechanisms, in some cases also by screws. These mechanisms are sometimes imprecise in use or difficult to use or remove. In the case of screw devices, the head of the screw is visible even when the front face of the embedded part of the lock has been covered. Utility Model Content

[0006] The utility model aims to provide a lock having a covering element for the front face of its embedded part, the covering element can be easily applied to the front face and can be easily removed from the front face without causing any negative visual effect on the front face.

[0007] According to the present invention, these and other objects that will become more apparent from the following description are achieved by a lock having a covering element on the front face of its embedded part, which has the structural and functional characteristics of an embodiment of the present invention, and other embodiments of the lock are defined in other aspects of the present invention.

[0008] In some exemplary embodiments of the present invention, a lock is provided, which has a covering element covering the front face of the embedded part of the lock, and the lock comprises: - a shell, which is the first embedded part of the lock, and the first embedded part is to be embedded in a corresponding cutout obtained in a door leaf; - an opposing shell or a strike plate, which is the second embedded part of the lock, and the second embedded part is to be embedded in a corresponding cutout obtained in a door frame or an additional door leaf; - a latch, which is equipped with a latch pin portion at one end and is accommodated in the shell, and the latch can be moved between a first retracted position and a second partially withdrawn position, in which the latch pin portion is located inside the shell, in which the latch pin portion is withdrawn from the shell through a through hole formed in the front face of the first embedded part, and if the shell and the opposing shell or the strike plate face each other, the latch pin portion passes through the through hole formed in the front face of the first embedded part. The second embedded part is inserted into the first seating portion of the opposing shell or the impact plate through the through hole in the front face of the second embedded part; at least the first embedded part or at least the second embedded part includes a corresponding covering element of the corresponding front face, and the covering element is equipped with respective through holes of the covering element, and the through holes of the covering element correspond to the through holes of the front face of the corresponding embedded part in the first embedded part and the second embedded part; the lock includes a device for associating and / or fastening the covering element to the corresponding embedded part in the first embedded part and the second embedded part in a removable manner; it is characterized in that the device for associating and / or fastening the covering element in a removable manner includes a magnetic interaction device located between the covering element of the lock and the corresponding embedded part in the first embedded part and the second embedded part, and when the covering element is placed adjacent to the corresponding front face, the magnetic interaction device realizes the removable fastening of the covering element to the corresponding front face itself.

[0009] In some exemplary embodiments of the present invention, the magnetic interaction device located between the covering element of the lock and the corresponding embedded parts of the first embedded part and the second embedded part includes: - at least one local part of the corresponding embedded part of the first embedded part and the second embedded part of the lock, the at least one local part of the corresponding embedded part of the first embedded part and the second embedded part having a magnetic property of generating a magnetic field, the magnetic field generated by the at least one local part of the corresponding embedded part of the first embedded part and the second embedded part acts on the part of the covering element that is sensitive to the magnetic field; - at least one local part of the covering element, the at least one local part of the covering element is made of a material that is sensitive to the magnetic field and attracted by the magnetic field, and when the covering element is placed adjacent to the corresponding front face, the at least one local part of the covering element is affected by the magnetic field generated by the at least one local part of the corresponding embedded part of the first embedded part and the second embedded part of the lock, thereby achieving the removable fastening of the covering element to the corresponding front face itself.

[0010] In some exemplary embodiments of the present invention, each local portion of the corresponding embedded portion in the first embedded portion and the second embedded portion of the lock having magnetic properties corresponds to at least one corresponding local portion of the covering element made of a material that is sensitive to and attracted by a magnetic field.

[0011] In some exemplary embodiments of the present invention, the covering element is made of a material that is sensitive to and attracted by a magnetic field, and when the covering element is placed adjacent to the corresponding front face, the covering element is affected by the magnetic field generated by at least one local portion of the corresponding embedded portion in the first embedded portion and the second embedded portion of the lock, thereby achieving the removable fastening of the covering element to the corresponding front face itself.

[0012] In some exemplary embodiments of the present invention, the covering element is made of metal material.

[0013] In some exemplary embodiments of the present invention, the covering element is made of steel.

[0014] In some exemplary embodiments of the present invention, the corresponding embedded parts of the first embedded part and the second embedded part of the lock include at least one pair of local parts having magnetic field characteristics for generating a magnetic field, the magnetic field generated by the at least one pair of local parts acts on a part of the covering element that is sensitive to the magnetic field, and two local parts of the paired local parts of the at least one pair of local parts are placed in the corresponding front face on opposite sides of a through hole relative to the corresponding front face, and the through hole of the corresponding front face is formed in the corresponding front face for the latch pin part to pass through.

[0015] In some exemplary embodiments of the present invention, the at least one local portion of the first embedded portion having magnetic properties is a permanently magnetized region of a front face of the first embedded portion.

[0016] In some exemplary embodiments of the present invention, at least one partial portion of the corresponding embedded portion of the first embedded portion and the second embedded portion of the lock includes at least one magnet, which is inserted into a corresponding second seating portion obtained in the corresponding embedded portion of the first embedded portion and the second embedded portion.

[0017] In some exemplary embodiments of the invention, the second seating portion is obtained in the respective front face.

[0018] In some exemplary embodiments of the present invention, the magnet is inserted into the second seating portion along a direction parallel to a moving direction of the latch.

[0019] In some exemplary embodiments of the present invention, the magnet is inserted into the second seating portion along a direction perpendicular to a movement direction of the latch.

[0020] In some exemplary embodiments of the present invention, the second seating portion provides an opening for inserting the magnet, and the second seating portion provides at least one abutment surface for the magnet on an opposite side.

[0021] In some exemplary embodiments of the present invention, the magnet is located between a front face of the first embedding portion and a portion of a support, and when the lock is assembled, the first embedding portion is embedded in the support.

[0022] In some exemplary embodiments of the present invention, the magnet is located between the front face of the first embedding portion and an additional portion of the first embedding portion itself.

[0023] In some exemplary embodiments of the present invention, the magnet is located between a portion of a corresponding embedding portion of the first embedding portion and the second embedding portion and the covering element.

[0024] In some exemplary embodiments of the present invention, the covering element has at least one protrusion, which protrudes toward the interior of the second embedded part until the protrusion touches at least one local portion of the second embedded part of the lock having magnetic characteristics that generates a magnetic field acting on the magnetic field-sensitive portion of the covering element, and the protrusion includes at least one local portion made of a material that is sensitive to and attracted by the magnetic field, or the protrusion itself is made of a material that is sensitive to and attracted by the magnetic field.

[0025] In some exemplary embodiments of the present invention, the protruding portion protrudes from one of the side portions of the periphery of the through hole of the cover element toward the inside of the second embedding portion.

[0026] In some exemplary embodiments of the present invention, a corresponding protruding portion is present on at least each of at least two opposite sides of the periphery of the through hole of the covering element.

[0027] In some exemplary embodiments of the present invention, each of the side portions of the periphery of the through hole of the covering element has a corresponding protruding portion.

[0028] In some exemplary embodiments of the present invention, all of the protruding portions are integrated with each other by deep drawing the covering element corresponding to the through holes.

[0029] In some exemplary embodiments of the present invention, at least at two of the side portions of the covering element, the covering element has side edges that protrude from the planar surface of the covering element toward the corresponding embedded portions of the first embedded portion and the second embedded portion and surround the outer side edges of the corresponding front faces.

[0030] In some exemplary embodiments of the present invention, the side edge of the covering element surrounds the entire covering element itself and encompasses all of the outer side edges of the front faces of the respective embedding parts of the first and second embedding parts.

[0031] In some exemplary embodiments of the present invention, on the two sides of the covering element which are parallel to the face of the door leaf itself when the door leaf is closed, there is an enlarged protrusion on the side edge of the covering element at least corresponding to the through hole of the covering element, and compared with the rest of the side edge of the covering element, the enlarged protrusion further extends toward the corresponding embedded part of the first embedded part and the second embedded part.

[0032] In some exemplary embodiments of the present invention, at least on two opposite sides of the periphery of the through hole of the covering element, the covering element has corresponding centering protrusions, which at least partially surround the edge of the through hole in the front face of the corresponding embedded part of the first embedded part and the second embedded part.

[0033] In some exemplary embodiments of the present invention, at least one of the centering protrusions has a third seating portion for inserting a tool to remove the covering element from a corresponding embedding portion of the first embedding portion and the second embedding portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The invention is explained in more detail below with the aid of the accompanying drawings, which show merely exemplary and non-limiting embodiments.

[0035] - Figure 1 A schematic perspective view of a portion of a door leaf and a portion of a corresponding door frame (or a corresponding additional door leaf) in which corresponding embedded parts, ie a lock housing and a lock counter housing or a strike plate, are embedded is shown.

[0036] - Figure 2 A schematic perspective view of an embedding part of a lock, in particular including its housing, is shown, which is inserted into a door leaf and a covering element separated from its front face.

[0037] - Figure 3 A partially exploded view shows Figure 2 An embodiment of an embedded part, wherein the corresponding covering element is highlighted.

[0038] - Figure 4 The front view (left), the section in the AA plane (center) and two enlarged details of the section in the AA plane (right) are shown. Figure 3 An embodiment of an embedded part supporting a covering element.

[0039] - Figure 5 A front view of a covering element, in particular a covering element for an embedding part with a lock housing, is shown.

[0040] - Figure 5A Shows Figure 5 Cross-section of the covering element in the DD plane.

[0041] - Figure 5B Shows Figure 5 A cross-section of the covering element in the EE plane and showing corresponding enlarged details.

[0042] - Figure 5C Shown in Figure 5A Details indicated by "a".

[0043] - Figure 5D Shown in Figure 5A Details indicated by "b".

[0044] - Figure 6 The door leaf is shown embedded in Figure 3 Front view of the embedded part (shown schematically).

[0045] - Fig. 6A Shows Figure 6 The cross section in the BB plane.

[0046] - Figure 6B Shows Figure 6 The cross section in the CC plane.

[0047] - Figure 6C Shown in Fig. 6A Details indicated by "c".

[0048] - Fig.6D Shown in Fig. 6A Details indicated by "d".

[0049] - Figure 7 With Figure 4 The illustration is similar to that of FIG. 1 , but shows a front view (left), a section in the FF plane (center figure) and an enlarged detail of the section in the FF plane (right figure). Figure 3 Another embodiment of the embedded part carrying the covering element.

[0050] - Figure 8 With Figure 4 and Figure 5 The example of FIG. 1 is similar to that of FIG. 1 , but shows a front view (left), a section in the GG plane (center figure) and an enlarged detail of a section in the GG plane (right figure). Fig. 9 An embodiment of an embedded part supporting a covering element.

[0051] - Fig. 9A partially exploded view shows Figure 2 A further embodiment of an embedded part, in which the covering element is highlighted.

[0052] - Fig.10 With Figure 2 A similar partially exploded view shows a further embodiment of an embedding part of a lock, in particular including its housing, wherein the cover element is highlighted.

[0053] - Fig.11 With Figure 4 , Figure 7 , Figure 8 The view is similar to the view of FIG. 1 , but is shown in a front view (left), a cross section in plane II (right) Fig.10 An implementation method of the embedded part.

[0054] - Fig.11A Shows Fig.11 The cross section of in the JJ plane.

[0055] - Fig. 11B The three-dimensional schematic diagram shows Fig.10 An enlarged detail of an embedding part, wherein an element forming the front face of the embedding part is mounted on the respective embedding part.

[0056] - Fig.12 A further embodiment of an insert part of a lock, in particular an insert part comprising the lock housing itself, is shown in a schematic perspective view, wherein the cover element is removed.

[0057] - Fig.13 A schematic perspective view of an insert part of a lock, in particular including its counter-housing or strike plate, is shown, which is inserted into a door frame or an additional door leaf, and a covering element separated from its front face.

[0058] - Fig.14 Shows Fig.13 A schematic perspective view of an embedded part, which is pulled out from a door frame or an additional door leaf, and shows a covering element separated from the front face of the embedded part.

[0059] - Fig.15 The front view, the first section in the plane indicated by LL on the front view and the second section in the plane indicated by MM in the front view are respectively shown. Fig.14 A covering element of the type shown in , in particular for a lock, comprises an embedded part of a counter-housing or a strike plate.

[0060] - Fig.16A schematic perspective view of a further embodiment of an embedding part of a lock, in particular including its counter-housing or strike plate, is shown which is inserted into a door frame or an additional door leaf and shows a covering element separated from the front face of the embedding part.

[0061] - Fig.17 Shows Fig.16 Front view of an inlay part which is equipped with a covering element and is embedded in a door frame or an additional door leaf.

[0062] - Fig.18 Shown in Fig.17 The cross section in the plane denoted by NN.

[0063] - Fig.18A Shown in Fig.18 Details indicated by "e".

[0064] - Fig.19 Shown in Fig.17 The cross section in the plane denoted by OO.

[0065] - Fig. 20 The front view, the first section in the plane indicated by PP on the front view and the second section in the plane indicated by QQ on the front view are shown. Figures 16 to 19 An embodiment of the embedded part of the covering element.

[0066] - Fig.21 A schematic perspective view of another embodiment of an embedding part of a lock, in particular an embedding part including its counter-housing or strike plate, which is inserted into a door frame or an additional door leaf, and a covering element separated from the front face of the embedding part.

[0067] - Fig. 22 Shows Fig.21 Front view of an inlay part which is equipped with a covering element and is embedded in a door frame or an additional door leaf.

[0068] - Fig.23 Shown in Fig. 22 The cross section in the plane denoted by RR.

[0069] - Fig.23A Shown in Fig.23 Details indicated by "f" in the figure.

[0070] - Fig.24 A diagram is shown by a front view, a first section in a plane indicated by SS on the front view, and a second section in a plane indicated by TT on the front view. Figures 21 to 23A An embodiment of the embedded part of the covering element. DETAILED DESCRIPTION

[0071] With reference to the figures, the lock with the covering element of the front face of its embedding part comprises a housing 1 which is a first embedding part 1 of the lock to be embedded in a corresponding cut-out obtained in a door leaf 100. The lock also comprises a counter housing or strike plate 2 which is a second embedding part 2 of the lock to be embedded in a corresponding cut-out obtained in a door frame 200 or in an additional door leaf 200'.

[0072] In the figures, the door leaf 100 (with the cutout for the housing 1) is shown in schematic form. In the figures, the door frame 200 (or the additional door leaf 200') is also shown in schematic form.

[0073] The lock also includes a latch 3, which is equipped with a latch pin portion 30 at one end and is accommodated in the housing 1. The latch 3 can be moved between a first retracted position and a second partially withdrawn position. In the first retracted position, the latch pin portion 30 is located inside the housing 1, and in the second partially withdrawn position, the latch pin portion 30 is withdrawn from the housing 1 through a first through hole 10 formed in the front face 11 of the first embedded part 1 (i.e., the housing 1).

[0074] If the shell 1 and the opposing shell or strike plate 2 face each other, the latch pin portion 30 passes through the second through hole 21 formed in the front face 22 of the second embedded portion 2 (i.e., the opposing shell or strike plate 2) and is inserted into the seating portion 20 of the opposing shell or strike plate 2.

[0075] At least the first embedding part 1 (i.e. at least the housing 1) or at least the second embedding part 2 (i.e. at least the opposing housing or the strike plate 2) comprises a covering element 12, 23 of the respective front face 11, 22, which covering element 12, 23 is provided with a respective through hole 120, 230 of the covering element, which through hole 120, 230 corresponds to the through hole 10, 21 of the front face 11, 22 of the respective embedding part 1, 2. Preferably, both the first embedding part 1 (i.e. the housing 1) and the second embedding part 2 (i.e. the housing 2) comprise a respective covering element 12, 23 of the respective front face 11, 22. The lock comprises means for associating and / or fastening said covering element 12, 23 to the respective embedding part 1, 2 in a removable manner. The device for associating and / or fastening the covering elements 12, 23 in a removable manner comprises a magnetic interaction device between the covering elements 12, 23 and the corresponding embedded parts 1, 2 of the lock, which enables the covering elements 12, 23 to be fastened to the front faces 11, 22 themselves in a removable manner when the covering elements 12, 23 are placed adjacent to the corresponding front faces 11, 22.

[0076] The use of magnetic means allows the covering element 12, 23 to be joined to the respective front face 11, 22 without visible external elements, thereby obtaining a valuable visual / aesthetic effect.

[0077] The magnetic interaction means between the cover element 12, 23 of the lock and the respective embedded part 1, 2 comprises at least a local portion 13, 24 of the respective embedded part 1, 2 of the lock, which local portion 13, 24 has magnetic properties for generating a magnetic field acting on the portion sensitive to the magnetic field of the cover element 12, 23. The local portion 13, 24 of the embedded part 1, 2 can be formed using one or more permanent magnets or permanent magnet portions. The at least one local portion 13, 24 of the embedded part 1, 2 can be formed using one or more regions of ferromagnetic material of the embedded part 1, 2, which region was previously subjected to a strong magnetic field until it was determined that the permanent magnetization of the region has the desired properties. The at least one local portion 13, 24 of the embedded part 1, 2 can also be formed by dispersing a certain percentage of a material portion having magnetic properties for generating a magnetic field acting on the portion sensitive to the magnetic field in a local region of a matrix without magnetic properties. In particular, the permanent magnets or portions of the permanently magnetized material can be dispersed in the desired direction.

[0078] Furthermore, said magnetic interaction means between said cover element 2, 23 of the lock and the respective embedded part 1, 2 comprises at least one partial portion of the cover element 12, 23, said at least one partial portion of the cover element 12, 23 being made of a material that is sensitive to and attracted by a magnetic field, and said at least one partial portion of the cover element 12, 23 being influenced by the magnetic field generated by at least one partial portion 13, 24 of said respective embedded part 1, 2 of the lock when the cover element 12, 23 is placed adjacent to the respective front face 11, 22, thereby enabling the cover element 12, 23 to be removably fastened to the front face 11, 22 itself. Said at least one partial portion 13, 24 of the embedded part 1, 2 may be formed using one or more material portions having a predetermined magnetic susceptibility, such as to withstand the effect of the magnetic field generated by said at least one partial portion 13, 24 of the embedded part 1, 2 in a desired manner. In particular, the effect can be obtained by partially dispersing a material having a predetermined magnetic susceptibility value in one or more regions / portions of a material matrix having a low magnetic susceptibility used to manufacture the embedded part 1, 2. The effect can also be obtained by inserting regions or elements of a material having a predetermined magnetic susceptibility value into a suitable seat of the matrix. Preferably, the embedded part 1, 2 or at least the front face 11, 22 of the embedded part 1, 2 can be completely made of a material having a predetermined magnetic susceptibility value. The material having a predetermined magnetic susceptibility value can in particular be a metal sensitive to magnetic fields, such as iron or steel.

[0079] Each local portion 13, 24 of the respective embedded part 1, 2 of the lock having magnetic properties corresponds to at least one respective local portion of the covering element 12, 23 made of a material that is sensitive to and attracted by a magnetic field. In this way, when the covering element 12, 23 is brought closer to the respective embedded part 1, 2 (in particular, closer to the respective front face 11, 22), the magnetic attraction effect is effectively achieved and thus the engagement between the two parts is effectively achieved. Preferably, the covering element 12, 23 (in particular, the entirety of the covering element 12, 23) is made of a material that is sensitive to and attracted by a magnetic field, and when the covering element 12, 23 is placed adjacent to the respective front face 11, 22, the covering element 12, 23 is affected by the magnetic field generated by at least one local portion 13, 24 of the respective embedded part 1, 2 of the lock, thereby achieving the fastening of the covering element 12, 23 to the front face 11, 22 itself in a removable manner. As already anticipated, with reference to materials sensitive to magnetic fields, in particular, the cover elements 12 , 23 are preferably made of a metallic material, even more preferably of steel.

[0080] Typically, said partial portion 13, 24 of said respective embedded portion 1, 2 of the lock comprises at least one magnet 130a, 130b, 240, 240a, 240b inserted in a respective seat 131a, 131b, 241, 241a, 241b obtained in the respective embedded portion 1, 2. Preferably, each partial portion 13, 24 of said respective embedded portion 1, 2 of the lock preferably comprises at least one magnet 130a, 130b, 240, 240a, 240b inserted in a respective seat 131a, 131b, 241, 241a, 241b obtained in the respective embedded portion 1, 2.

[0081] For example, in Figure 3 , Figure 4 , Fig. 6A , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.13 , Fig.14 In the embodiment, the seating portions 131a, 131b, 241a, 241b are obtained in the front faces 11, 22.

[0082] exist Figures 16 to 24 In the embodiment shown in , with particular reference to the second embedding part 2 (i.e. the counter shell or strike plate 2), the seat 241 is obtained in the body of the embedding part 2. In particular, in the case of the counter shell or strike plate 2, the seat 241 is obtained behind the seat 20 for inserting the latch bolt 30. In this case, the same magnet used in magnetic locks to attract the latch bolt 30 into the seat 20 by means of a magnetic field can be used as the magnet 240. Regarding this particular solution, further details will be provided later in the following description.

[0083] In one solution, the magnets 130a, 130b, 240a, 240b are inserted into the seats 131a, 131b, 241, 241a, 241b in a direction parallel to the direction of movement of the latch 3 (for example, Figure 3 , Fig. 9 , Fig.14 In an alternative solution, in particular Figure 10 to Figure 11 As shown in FIG. 2 , the magnets 130a, 130b are inserted into the seating portions 131a, 131b in a direction perpendicular to the movement direction of the latch 3. In particular, as shown in FIG. Figure 10 to Figure 11As shown in FIG. 1 , the magnets 130a, 130b have a cylindrical shape and are inserted perpendicularly to the movement direction of the latch 3 (and perpendicularly to the movement direction of the corresponding latch bolt portion 30) into the seating portions 131a, 131b which are made in the thickness portion of the front faces 11, 22 (i.e., in the thickness portion of the element forming the front faces 11, 22). In this case, the seating portions 131a, 131b are also cylindrical.

[0084] The seating portions 131a, 131b, 240, 241a, 241b are provided with openings for inserting the magnets 130a, 130b, 240, 240a, 240b and at least one abutment surface of the magnets 130a, 130b, 240, 240a, 240b on the opposite sides. Figure 3 , Figure 4 , Figures 6 to 6D , Figure 7 In particular, the magnets 130a, 130b are inserted into the element forming the front face 11, 22 on the side facing the body 15 of the embedded part 1 and abut against the opposite side. The abutment surface is obtained in the element forming the front face 11, 22 and Figure 4 (in two details), Figure 6C , Figure 7 (In the details) is visible. Figure 8 , Fig. 9 In particular, the magnets 130a, 130b are inserted into the element forming the front face 11, 22 on the side opposite to the side facing the body 15 of the embedding part 1 and abut against the side of the body 15 facing the embedding part 1. In this case, the abutment surface is obtained in the element forming the front face 11, 22 and Fig. 9 and Figure 8 is visible in the details. Figure 3 , Figure 4 , Figures 6 to 6D , Figure 7 , Figure 8 , Fig. 9 The case where the insert parts 1, 2 are housings 1 is referred to, but it is clear how the solution shown therein can be applied in an analogous manner to the case where the insert parts 1, 2 are opposing housings or impact plates 2, in particular Figures 13 to 15 This is especially true in the embodiment shown in .

[0085] If especially in Figures 1 to 4 , Figures 6 to 6DAs shown in , in one solution, the magnets 130a, 130b are included between the front face 11 of the corresponding embedded part 1 and the support 100 (or part of the support 100), and when the lock is assembled, the corresponding embedded part 1 is embedded in the support 100 (or part of the support 100).

[0086] exist Figures 1 to 4 , Figures 6 to 6D In the case shown in , the support itself is the door leaf 100. In particular, the seatings 131a, 131b of the magnets 130a, 130b are obtained in the parts of the elements forming the front face 11, so that when the lock is installed in the door leaf 100, the magnets 130a, 130b abut against parts of the door leaf 100 or corresponding cutouts. Preferably, these parts of the elements forming the front face 11 can be flanges of the embedding part 1 (in particular the housing 1), which are used to fasten the embedding part 1 to the corresponding support 100 (in particular the door leaf 100). The abutment stops of the magnets 130a, 130b are maintained in a distal position relative to the support 100. The entry holes of the seatings 131a, 131b face the support 100. The magnets 130a, 130b can be glued to the abutment with a suitable adhesive to avoid that the magnets 130a, 130b lose their positioning when the embedding part 1 has not yet been installed. Even Figures 1 to 4 , Figures 6 to 6D The case where the embedded parts 1, 2 are housings 1 is referred to, but it is clear that the solution shown therein can be applied in a similar manner to the case where the embedded parts 1, 2 are opposing housings or impact plates 2, especially in Figures 13 to 15 This is especially true in the implementation of .

[0087] If especially in Figure 7 As shown in , in another solution, the magnets 130a, 130b are located between the front face 11 of the corresponding embedded part 1 and the additional part 14 of the corresponding embedded part 1 itself. The additional part 14 particularly comprises a portion 140, which supports the element forming the front face 1. The supporting portion can be a closed wall of the body 15 of the corresponding embedded part 1 (in the example, the body 15 of the housing 1). The seating portions 131a, 131b are made on the side of the element forming the front face 11 that is intended to face the additional part 14 (in particular the supporting portion 140). Any abutment is located on the side opposite to the side that is intended to face the additional part 14 (see in particular Figure 7In this solution, when the embedding part 1 is mounted (and therefore the front face 11 is mounted on the additional part 14 of the respective embedding part 1, in particular the support part 140), the magnets 130a, 130b can no longer come out of the respective seatings 131a, 131b during the various manipulations of the embedding part 1 during assembly. It is also possible to glue the magnets to the abutments with a suitable adhesive in order to avoid that the magnets lose their position when the element forming the front face 11 has not yet been mounted on the additional part 14 of the embedding part 1, in particular the support part 140. Likewise, even if Figure 7 In the embodiment, the solution is shown only for the embedded part 1 represented by the housing 1, but the solution can also be applied to the embedded part 2 represented by the opposing housing or the impact plate 2 (especially in Figures 13 to 15 This is especially true in the implementation scheme described in (

[0088] By way of example and not limitation, Figure 8 , Fig.14 , Fig.23 , Fig.24 In one solution, the magnets 130a, 130b, 240, 240a, 240b are located between the covering element 12, 23 and a portion of the respective embedding part 1, 2. Fig.23 and Fig.24 The magnet 240 is shown inserted into the seat 241 which is obtained centrally in the embedding part 2. Fig.23 In the case shown in , the entrance of the seat portion 241 can be located on the side of the embedded part 2 away from the covering element 23 (in this case, preferably, an abutment stop portion close to the covering element 23 can be provided on the opposite side) or on the side of the embedded part 2 close to the covering element 23 (in this case, an abutment stop portion away from the covering element 23 can be provided on the opposite side). When the embedded part 2 is an opposing shell or a strike plate 2, preferably, the seat portion 241 corresponds to the seat portion 20 for the latch pin portion 30 to enter, and the magnet 240 can be a magnet for obtaining mechanical re-locking in the magnetic lock by attracting the latch pin portion 30 itself.

[0089] Reference Figure 8 , Fig.14, the magnets 130a, 130b, 240a, 240b are located between the covering element 12, 23 and the part embedded in the part 1, 2. In particular, the magnets 130a, 130b, 240a, 240b are located between the covering element 12, 23 and the element forming the front face 11, 22. The inlet of the seating portion 131a, 131b, 241a, 241b is located on the side of the element forming the front face 11, 22 facing the covering element 12, 23. Any abutment is located on the opposite side (see in particular Figure 8 ). It is also possible to glue the magnet to the abutment with a suitable adhesive to avoid the magnet losing its position during various stages of manipulation and / or use of the lock when the cover element 12, 23 has not yet been applied to the respective embedded part 1, 2. Likewise, even in Figure 8 In the embodiment, the solution is shown only for the embedded part 1 represented by the housing 1, but the solution can also be applied to the embedded part 2 represented by the opposing housing or the impact plate 2 (especially in Figures 13 to 15 This is especially true in the implementation of

[0090] Said respective embedded part 1, 2 of the lock (i.e. the housing 1 or the counter housing or the strike plate 2, or both) comprises at least one pair of partial parts 13, 24 having magnetic properties for generating a magnetic field acting on a part sensitive to the magnetic field of the covering element 12, 23. Preferably, two partial parts 13, 24 of said pair of partial parts are placed in front of the front face 11, 22 on opposite sides with respect to the through hole 10, 21 obtained in said front face 11, 22 for the passage of the latch bolt 30.

[0091] Preferably, the at least one pair of partial portions 13, 24 having magnetic properties for generating a magnetic field acting on the magnetic field-sensitive portion of the covering element 12, 23 is formed by means of a pair of permanent magnets. The arrangement and accommodation of the magnets in the respective seats can be realized according to any of the previously described configurations.

[0092] in particular Fig.12 In the embodiment shown in , said local portion 13 having magnetic properties is a permanently magnetized area of ​​the front face 11 (obtained in particular from the ferromagnetic material of which the front face 11 is made, by previous exposure to a strong magnetic field). Fig.12 In FIG. 1 , the local portion 13 is indicated by a shaded background. Fig.12 In the embodiment, the solution is shown with reference to an embedding part 1 represented by a housing 1 , however, it is clear that the same solution can also be immediately applied to an embedding part 2 represented by a counter housing or a strike plate 2 .

[0093] With particular reference Figures 16 to 24 , the cover element 12, 23 presents at least one protruding portion 231, which protrudes towards the corresponding embedded part 2, until it touches at least one partial portion 24 of the corresponding embedded part 2 of the lock, which partial portion 24 has the magnetic property of generating a magnetic field acting on the portion sensitive to the magnetic field of the cover element 23. The protruding portion 231 comprises at least one partial portion made of a material sensitive to the magnetic field and attracted to the magnetic field. The protruding portion 231 itself, preferably together with the entire cover element 23, can be made of a material sensitive to the magnetic field and attracted to the magnetic field. In this way, the magnetic interaction that enables the engagement of the cover element 23 on the front face 22 of the corresponding embedded part 2 can be localized in a correct and precise manner, even if at least one partial portion 24 of the corresponding embedded part 2 of the lock, which partial portion 24 has the magnetic property of generating a magnetic field acting on the portion sensitive to the magnetic field of the cover element 23, is housed in an internal position of the embedded part 2 itself. The protruding portion 231 can be inserted into a suitable seat located inside the corresponding embedded part 2. The protruding portion 231 may be provided with an end portion appropriately shaped to more easily come into contact with or approach a corresponding local portion 24 of the corresponding embedded portion 2, which local portion 24 has magnetic properties for generating a magnetic field acting on a portion sensitive to the magnetic field of the covering element 23 (see in particular Fig.18 , Fig.18A , Fig.19 , Fig. 20 Although this solution is shown for the case of an embedding part 2 represented by an opposing housing or impact plate 2, this solution can also be used for an embedding part 1 represented by a housing 1.

[0094] In an embodiment, the protruding portion 231 protrudes from one of the sides of the periphery of the through hole 230 of the covering element 23 toward the corresponding embedded portion 2. There is a corresponding protruding portion 231 on at least each of at least two opposite sides of the periphery of the through hole 230 of the covering element 23 (see in particular Fig.18 , Fig.18A , Fig.19 , Fig. 20 In the embodiment, each of the sides of the periphery of the through hole 230 of the cover element 23 has a corresponding protruding portion 231 . Figure 21 to Figure 24 A case of a configuration in which such protruding portions 231 are integrated with each other by deep drawing the cover member 23 corresponding to the through-hole 230 is shown.

[0095] Advantageously, at least on two of the sides of the covering element 12, 23, the covering element 12, 23 presents a side edge 121, 232 which projects from the planar surface of the covering element 12, 23 towards the respective embedding part 1, 2 and surrounds the outer side edge 110, 120 of the front face 11, 22. Even more advantageously, said side edge 121, 232 of the covering element 12, 23 surrounds the entire covering element 12, 23 itself and surrounds all the outer side edges 110, 220 of the front face 11, 22 of the respective embedding part 1, 2. Preferably, the covering element 11, 22 is a concave element with a mainly flat portion, to which the side edge 121, 232 is added to determine the concavity of the concave element, which turns towards the respective embedding part 1, 2 itself when engaging with the respective embedding part 1, 2. The covering elements 11 , 22 may be obtained from a metal sheet by deep drawing and / or cutting and folding the metal sheet.

[0096] With particular reference Figure 5 , Figure 5A , Figure 5C On both sides of the covering element 12, 23 which are parallel to the face of the door leaf 100 itself when the door leaf 100 is closed, the side edges 121, 232 of the covering element 12, 23 are provided with enlarged projections at least corresponding to the through holes 120, 230, which extend further toward the respective embedded part 1, 2 than the rest of the side edges 121, 232 of the covering element 12, 23. Thus, reinforcement of the covering element 12, 23 is obtained precisely at the thinnest part of the covering element 12, 23. This may be important when the covering element 12, 23 is made of a very thin metal sheet. Figure 5 , Figure 5A , Figure 5C This characteristic is illustrated with reference to the case where the respective insert part 1, 2 is represented by the housing 1; however, it is clear that this characteristic can also be applied to the typical covering elements 12, 23 of the insert part 2 represented by the counter housing or the impact plate 2, in particular for Figures 13 to 15 This is especially true for the situation shown in .

[0097] Advantageously, at least on two opposite sides of the periphery of the through-hole 120, 230 of the covering element 12, 23, the covering element 12, 23 presents a respective centering protrusion 122, 233, which at least partially surrounds the edge of the through-hole 10, 20 in the front face 11, 22 of the respective embedding part 1, 2. Conveniently, the centering protrusion 122, 233 is obtained as a specific element from the periphery of the through-hole 120, 233. However, when there is 231 the above-mentioned protrusion 231 (or more protrusions 231), the protrusion 231 (or more protrusions 231) may represent an embodiment of one or more of the centering protrusions 122, 233.

[0098] At least one of the centering projections 122 , 233 presents a seat 123 , 234 for inserting a tool, such as a screwdriver or another similar tool, to remove the covering element 12 , 23 from the respective embedding part 1 , 2 .

[0099] The invention achieves important advantages. In particular, a system is achieved that covers the front face of one or more embedding parts of the lock, thereby allowing an aesthetic / visual effect without any defects or visibility of functional elements that could detract from the aesthetic impression. The invention thus conceived is susceptible to numerous modifications and variations, all falling within the scope of the inventive concept that characterizes the invention.

Claims

1. A lock having a covering element covering a front face of an embedded part of the lock, the lock comprising: - a housing (1) which is a first embedding part of the lock, which is to be embedded in a corresponding cutout obtained in the door leaf (100); - a counter-shell or strike plate (2) which is a second embedding part of the lock, which is to be embedded in a corresponding cut-out obtained in the door frame (200) or in the additional door leaf (200'); - a latch (3) provided with a latch bolt (30) at one end and housed in the housing (1), the latch (3) being movable between a first retracted position in which the latch bolt (30) is located inside the housing (1) and a second partially withdrawn position in which the latch bolt (30) is withdrawn from the housing (1) through a through hole formed in the front face of the first embedded portion, and in which the latch bolt (30) is inserted into a first seating portion (20) of the opposing housing or the strike plate (2) through a through hole formed in the front face of the second embedded portion if the housing (1) and the opposing housing or the strike plate (2) face each other; at least the first embedding part or at least the second embedding part comprises a respective covering element of the respective front face, the covering element being provided with respective through holes of the covering element, the through holes of the covering element corresponding to the through holes of the front face of the respective embedding part; the lock comprises means for associating and / or fastening the covering element to the respective embedding part in a removable manner; It is characterized in that the device for associating and / or fastening the covering element in a removable manner includes a magnetic interaction device located between the covering element and the corresponding embedded part of the lock, when the covering element is placed adjacent to the corresponding front face, the magnetic interaction device enables the covering element to be fastened to the corresponding front face itself in a removable manner.

2. The lock according to claim 1, characterized in that: The magnetic interaction means between the cover element and the corresponding embedded part of the lock comprises: - at least one partial portion of the respective embedded part of the lock, the at least one partial portion of the respective embedded part having magnetic properties for generating a magnetic field, the magnetic field generated by the at least one partial portion of the respective embedded part acting on a portion of the covering element that is sensitive to the magnetic field; - at least one local portion of the covering element, which is made of a material that is sensitive to and attracted by a magnetic field, and when the covering element is placed adjacent to the corresponding front face, the at least one local portion of the covering element is affected by the magnetic field generated by the at least one local portion of the corresponding embedded part of the lock, thereby achieving the removable fastening of the covering element to the corresponding front face itself.

3. The lock according to claim 2, characterized in that: Each partial portion of the respective embedded part of the lock having magnetic properties corresponds to at least one respective partial portion of the covering element made of a material that is sensitive to and attracted by a magnetic field.

4. The lock according to claim 2 or 3, characterized in that: The covering element is made of a material that is sensitive to and attracted by a magnetic field, and when the covering element is placed adjacent to the corresponding front face, the covering element is affected by the magnetic field generated by at least one local portion of the corresponding embedded portion of the lock, thereby achieving removable fastening of the covering element to the corresponding front face itself.

5. The lock according to claim 4, characterized in that: The covering element is made of a metallic material.

6. The lock according to claim 5, characterized in that: The covering element is made of steel.

7. The lock according to claim 2, characterized in that: The corresponding embedded part of the lock includes at least one pair of local parts having magnetic field characteristics for generating a magnetic field, the magnetic field generated by the at least one pair of local parts acts on the magnetic field-sensitive part of the covering element, and two local parts of the paired local parts in the at least one pair of local parts are placed in the corresponding front face on opposite sides relative to the through hole of the corresponding front face, and the through hole of the corresponding front face is formed in the corresponding front face for the latch pin part (30) to pass through.

8. The lock according to claim 7, characterized in that The at least one local portion of the first embedded part having magnetic properties is a permanently magnetized area of ​​the front face of the first embedded part.

9. The lock according to claim 2, characterized in that: Said at least one partial portion of the respective embedded part of the lock comprises at least one magnet (130a, 130b, 240, 240a, 240b) which is inserted into a respective second seating (131a, 131b, 241, 241a, 241b) obtained in the respective embedded part.

10. The lock according to claim 9, characterized in that Said second seating is obtained in the respective front face.

11. The lock according to claim 9, characterized in that The magnet is inserted into the second seating portion in a direction parallel to the movement direction of the latch (3).

12. The lock according to claim 9, characterized in that The magnet is inserted into the second seating portion in a direction perpendicular to the movement direction of the latch (3).

13. The lock according to claim 9, characterized in that The second seating portion (131a, 131b, 241, 241a, 241b) provides an opening for inserting the magnet (130a, 130b, 240, 240a, 240b), and the second seating portion (131a, 131b, 241, 241a, 241b) provides at least one abutment surface for the magnet (130a, 130b, 240, 240a, 240b) on the opposite side.

14. The lock according to claim 9, characterized in that The magnet is located between the front face of the first embedding portion and a portion of a support into which the first embedding portion is embedded when the lock is assembled.

15. The lock according to claim 9, characterized in that The magnet is located between the front face of the first embedding part and an additional portion (14) of the first embedding part itself.

16. The lock according to claim 9, characterized in that The magnets (130a, 130b, 240, 240a, 240b) are located between a portion of the corresponding embedding portion and the cover element.

17. The lock according to claim 9, characterized in that The covering element has at least one protrusion (231) which protrudes toward the inside of the second embedded part until the protrusion (231) touches at least one local portion (24) of the second embedded part of the lock having magnetic characteristics that generates a magnetic field acting on the magnetic field-sensitive portion of the covering element (23), and the protrusion (231) includes at least one local portion made of a material that is sensitive to and attracted by a magnetic field, or the protrusion (231) itself is made of a material that is sensitive to and attracted by a magnetic field.

18. The lock according to claim 17, characterized in that The protruding portion (231) protrudes from one of the side portions of the periphery of the through hole (230) of the cover element (23) toward the inside of the second embedding portion.

19. The lock according to claim 18, characterized in that At least on each of at least two opposite sides of the periphery of the through hole (230) of the cover element (23), there is a corresponding protruding portion (231).

20. The lock according to claim 17, characterized in that A corresponding protruding portion (231) is present on each of the side portions of the periphery of the through hole (230) of the covering element (23).

21. The lock according to claim 20, characterized in that All of the protruding portions (231) are integrated with each other by deep drawing the covering member (23) corresponding to the through holes (230).

22. The lock according to any one of claims 1 to 3, characterized in that At least at two of its sides, the covering element has side edges (121, 232) which protrude from a planar surface of the covering element toward the corresponding embedded part and surround the outer side edges (110, 220) of the corresponding front face.

23. The lock according to claim 22, characterized in that The side edge (121, 232) of the covering element surrounds the entire covering element itself and encompasses all the outer side edges (110, 220) of the front face of the respective embedding part.

24. The lock according to claim 22, characterized in that On the two sides of the covering element which are parallel to the face of the door leaf (100) itself when the door leaf (100) is closed, there is an enlarged protrusion on the side edge (121, 232) of the covering element at least corresponding to the through hole of the covering element, and the enlarged protrusion extends further toward the corresponding embedded part compared with the rest of the side edge (121, 232) of the covering element.

25. The lock according to any one of claims 1 to 3, characterized in that At least on two opposite sides of the periphery of the through hole of the covering element, the covering element has corresponding centering projections (122, 233) which at least partially surround the edge of the through hole in the front face of the corresponding embedded part.

26. The lock according to claim 25, characterized in that At least one of the centering projections (122, 233) has a third seating portion (123, 234) for inserting a tool to remove the covering element from the corresponding embedding portion.

Images