EP3651597A1

EP3651597A1 - Magnetic closure device using concentric interlocking of the parts forming the magnetic assemblies with automatic centring and double insertion

Info

Publication number: EP3651597A1
Application number: EP18739892.0A
Authority: EP
Inventors: Gérald Manuello
Original assignee: FBS Fox Brands Services
Current assignee: FBS Fox Brands Services
Priority date: 2017-07-10
Filing date: 2018-06-11
Publication date: 2020-05-20
Anticipated expiration: 2038-06-11
Also published as: WO2019012188A1; EP3651597B1; FR3068576A1; PT3651597T; CN110891446A; FR3068576B1; CN110891446B

Abstract

A magnetic closure device using concentric interlocking of the parts forming the magnetic assemblies with automatic centring and double insertion, intended to removably connect a first surface (15) and a second surface (15A). In such a way that, when the two magnetic assemblies are moved towards each other, the first magnetic assembly (F) and the second magnetic assembly (M) are automatically aligned axially, the second magnetic assembly (M) is inserted into the first central opening (5E) of the first capsule (5) of the first magnetic assembly (F), thus providing a first insertion and, at the same time, the first protruding central ferromagnetic portion (2A) of the first magnetic assembly (F) is inserted into the second central opening (10E) of the second capsule (10) of the second magnetic assembly (M), thus providing the second insertion, the first (4) and second (9) magnets, respectively, of the first (F) and second (M) magnetic assemblies, are situated more or less on a same horizontal plane, the first (2A) and the second (7A) protruding ferromagnetic portions, respectively of the first and second magnetic assemblies, are connected to each other and hold the first and second magnetic assemblies together magnetically. The present invention produces a double insertion closure that is extremely thin and aesthetic. Said closure device is mainly intended for removably connecting a first surface (15) and a second surface (15A) of an article or accessory.

Description

Magnetic closure device by concentric interlocking of the constituent parts of the magnetic assemblies with automatic centering and double insertion

The present invention relates to the improvement of closure systems, particularly for leather goods and the textile industry, and more particularly to the improvement of existing magnetic closure devices.

With reference to U.S. Pat. No. 4,021,891 and U.S. Pat. No. 4,453,294, there are known magnetic closure devices using a first magnetized assembly with a permanent magnet having a through hole, positioned on a ferromagnetic base, said base being provided with a projecting central ferromagnetic portion, which protruding portion found in the center of the through hole of the magnet, the ferromagnetic base and the magnet being secured to each other by a non-magnetic piece; cooperating with a second set of ferromagnetic material having a projecting portion extending axially relative to its base and intended for the magnetic coupling of the two sets.

The magnetic engagement being achieved when they are perfectly aligned axially. However, with this type of closure, the axial alignment of the two sets must be performed by the user. Indeed, the projecting ferromagnetic portion of the second assembly being irretriebly attracted to the magnet which is on the outer periphery of the central orifice of the first assembly and not towards the central orifice of the first assembly where the coupling must be done .

Moving the two assemblies one over the other to position the two assemblies axially and actuate the closure resulting in damaging and scratching the surface of the appearance parts.

With reference to US Pat. No. 3,141, 216, there is also known another magnetic closure device for axial alignment and closure of assemblies without the help of the user. This type of closure uses two sets, both of which are magnetized by means of two magnetic rings with axial magnetization, the rings being positioned so as to have opposing poles facing each other when the two sets face each other; In the center of each of the rings are a projecting portion, extending axially in relation to the base, being set back in relation to the magnetic ring on one of the sets, and conversely, projecting on the other set . When the assemblies are closed, the two magnets are superimposed, this operating constraint having the main drawback of creating thick and unsightly closures. There are also devices magnetic closures not visible, placed under the surface or in the lining of the article or accessory. These different types of closures have several major disadvantages:

Due to their positioning under the material, they can not generate a magnetic coupling with insertion and thus guarantee an optimal closure, especially in shear.

In order to obtain a sufficient magnetic holding force, the use of powerful magnets and larger sizes is necessary, resulting in the risk of damage to electronic devices, credit card ...

It is known recently, with reference to the EP patent. 2,490,560 another type of magnetic closure device in which the magnets of each of the sets have an identical pole opposite, one of the two magnets having a through hole for receiving the circular magnet of the opposite assembly during closure of the device, each of the two magnets cooperating with the ferromagnetic part of the opposite assembly, or on the outer periphery of the cylindrical magnet of the first set and in the center of the magnetic ring of the second set.

Although this type of closure allows axial alignment automatic sets, it remains quite thick because it does not allow the complete insertion of one set in the other, the insertion being only partial.

With this type of closure, the contact of the two sets is total, resulting in premature and rapid wear of the appearance parts of the magnetic closure device. Indeed, the ferromagnetic parts, the strongest and most resistant to wear are not in contact with each other. Each of the ferromagnetic parts being in contact with the magnet of the opposite assembly which are very fragile parts.

In view of the invention, it can be understood that a non-magnetic part can be placed to protect and cover the magnets, but this non-magnetic part will result in creating an air gap between each of the magnets and the ferromagnetic part of the assembly opposite and thereby reduce the closing magnetic force. The object of the present invention is to provide a magnetic closure device by concentric interlocking component parts with self centering and double insertion of magnetic assemblies;

Another object of the present invention is to allow an integral insertion of an assembly into the other so as to obtain a very fine and aesthetic magnetic device.

Another object of the present invention is to ensure optimum magnetic retention and consistent sets while using small magnets; Another object of the present invention is to obtain a connection of the assemblies via the central ferromagnetic part of each of the assemblies and to avoid the contact of the appearance parts;

Another object of the present invention being to be able to contribute the usual fasteners in the closure of the device;

For this purpose, according to the invention, there is provided a magnetic closure device by concentric interlocking of the constituent parts of two magnetic assemblies, the component parts of each of the magnetic assemblies interlocking around an identical central axis, the constituent parts a magnetic assembly being proportional and complementary to the component parts of the other magnetic assembly, each of the magnetic assemblies comprising a permanent magnet with axial magnetization, said magnets of each of the two assemblies being placed in such a way as to have an identical pole facing each other, said magnetic closure device being adapted to removably connect a first surface and a second surface characterized in that: a first magnetic assembly for attachment to a first surface of an article or accessory comprising:

a first ferromagnetic base having a central through hole;

a first ferromagnetic portion in the form of a tubular rod, having a thinner section and a wider section, said thinner section being adapted to pass through the central through orifice of the first ferromagnetic base, the end of said thinner section being intended to cooperate and be fixed with the fastening means of the first magnetic assembly, the other wider section of the tubular shaft forming a first ferromagnetic central portion projecting over the central through orifice and extending axially in relation to the surface of the first ferromagnetic base;

a first permanent magnet with axial magnetization, having a height greater than the height of the first ferromagnetic central part and having a through central orifice of a diameter greater than the peripheral dimensions of said first ferromagnetic protruding part, said first permanent magnet being disposed on the surface of the first ferromagnetic base, ie, the outer periphery of the first projecting ferromagnetic core, said first permanent magnet extending axially with respect to the surface of the first ferromagnetic base and projecting from said first central ferromagnetic portion protruding being in its center, a first pole being in contact with the surface of the first ferromagnetic base, the second pole being axially opposite; a first non-magnetic capsule adapted to cover the first permanent magnet and fix it to the first ferromagnetic base, said first capsule having an upper part, an external lateral wall, and a first central through orifice, the diameter of said first through hole of said first first capsule being smaller than the diameter of the through orifice of the first permanent magnet and greater than the peripheral dimensions of the first central ferromagnetic protruding part;

a second magnetic assembly for attachment to a second surface of the article or accessory comprising:

a second ferromagnetic base having a second central through orifice, said second ferromagnetic base having peripheral dimensions less than the diameter of the through orifice of the first capsule of the first magnetic assembly, so as to be able to fit into the orifice of said first capsule of said first magnetic assembly;

a second ferromagnetic part in the form of a tubular rod, having a thinner section and a wider section, the thinner section being adapted to pass through the second the central through-hole of the second ferromagnetic base, the end said finer section being intended to cooperate and to be fastened with the securing means of the second magnetic assembly, the other wider section of the tubular shaft forming a second projecting ferromagnetic central portion covering the second central through hole and extending axially in relation to the surface of the second ferromagnetic base;

a second permanent magnet with axial magnetization having a height greater than the height of the second central ferromagnetic portion projecting and having a central through orifice, said second permanent magnet having a diameter smaller than the diameter of the through orifice of the first permanent magnet of first set, said through orifice of said second permanent magnet having a diameter greater than the peripheral dimensions of the first and second ferromagnetic protruding portions, respectively of the first and second magnetic assemblies, said second magnet being disposed on the surface of the second ferromagnetic base, extending on the outer periphery of the second projecting portion, axially in relation to the surface of the second ferromagnetic base and projecting from said central second central ferromagnetic portion at its center; a first pole, identical to the first pole of the first permanent magnet of the first magnetic assembly being in contact with the surface of the second ferromagnetic base, the second pole being axially opposite; a second non-magnetic capsule adapted to cover the magnet and fix it to the ferromagnetic base, said second capsule having an upper part, a lateral wall and a second central through orifice, said second capsule having peripheral dimensions less than the diameter of the first through-orifice of the first capsule of the first magnetic assembly, the diameter of the second through orifice of said second capsule being smaller than the diameter of the through-orifice of said second permanent magnet and greater than the peripheral dimensions of the second and first protruding portions, respectively, second and first magnetic assemblies;

such that when the two magnetic assemblies are brought together, the first magnetic assembly and the second magnetic assembly are automatically aligned axially, the second magnetic assembly is inserted into the first central orifice of the first capsule of the first magnetic assembly, thereby generating a first insertion, at the same time, the first central ferromagnetic portion projecting from the first magnetic assembly is inserted into the second central orifice of the second capsule of the second magnetic assembly, thereby generating the second insertion, the first and second magnet, respectively of the first and second magnetic assemblies are more or less on the same horizontal plane, the first and the second projecting ferromagnetic parts, respectively of the first and second magnetic assemblies are connected to one another and magnetically maintain the first and the second magnetic set.

Thanks to the present invention, a closure with an automatic centering and an extremely fine double insertion is obtained from the possible integral insertion of the second magnetic assembly by the first magnetic assembly.

In addition, the holding force is accentuated by the fact that each of the projecting parts of each of the magnetic assemblies are magnetized by the magnet which they support, and, when closed, magnetized also by the magnet of the magnet. opposite set.

The holding force is also increased tenfold in relation to the double insertion occurring according to the invention when closing the magnetic device.

The shear retention are also tenfold due to the possible complete insertion of the second set into the first magnetic assembly

The magnets of each of the magnetic assemblies have a height greater than the central ferromagnetic part located at their center so that said magnets protrude in relation to the central ferromagnetic parts, so that when the assemblies are brought together, the central ferromagnetic parts can not interact magnetically during the first phase of centering sets magnetic, repulsion of identical poles, respectively the second pole of the first magnetic assembly and the second pole of the second magnetic assembly.

According to particular embodiments, the magnetic closure device may contain one or more of the following characteristics, taken in isolation or in any technically possible combination:

- the cumulative height of the central ferromagnetic projecting portions or the protruding height in relation to the surface of their respective ferromagnetic _base. is greater than the insertion height of the second magnetic assembly, said insertion height of the second magnetic assembly corresponding to the height between the second ferromagnetic surface and the upper part of the second non-magnetic capsule, so that at the connection and insertion of the magnetic assemblies, only the projecting central ferromagnetic parts are connected to each other, while the upper part of the second magnetic assembly, corresponding to the upper part of the second capsule, is not in contact with the surface of the first ferromagnetic base of the first magnetic assembly;

the cumulative height of the protruding parts is equal to the insertion height of the second magnetic assembly so that, in addition to the connection of the two central ferromagnetic parts protruding when closing the device, the upper part of the second assembly magnet, corresponding to the upper part of the second capsule, is connected to the first ferromagnetic surface of the first magnetic assembly, resulting in a double connection of the assemblies, ie a connection of the two central ferromagnetic parts in cumulated projection to the connection of the second magnet second magnetic assembly on the surface of the first ferromagnetic base of the first magnetic assembly;

- The insertion height of the first magnetic assembly has a height for the total insertion of the second magnetic assembly;

- The insertion height of the first magnetic assembly has a height less than the height of the second magnetic assembly so that the second magnetic assembly is only partially inserted;

the height of insertion of the first magnetic assembly allows the total and flush insertion of the second magnetic assembly so that the upper part of the first magnetic assembly, ie the upper part of the first capsule, comes to rest on the opposite surface, the outer periphery of the second magnetic assembly;

the first magnetic assembly is adapted to cooperate with a ferromagnetic element placed under the surface of the article or accessory, said element ferromagnetic being adapted to receive the fixing means of the second magnetic assembly and fix said second magnetic assembly to the article or accessory, said ferromagnetic element having peripheral dimensions greater than the peripheral dimensions of said second magnetic assembly and advantageously of dimensions identical to the diameter of the first permanent magnet of the first magnetic assembly, such that a magnetic attraction is created between said ferromagnetic element and the first magnet of the first magnetic assembly through the non-magnetic surface of the article or accessory when closing the device;

the ferromagnetic element is positioned on the rear base of the second magnetic assembly, either between the rear base of the second magnetic assembly and the surface of the article or accessory, said ferromagnetic element permitting the passage of the fixing means of said second magnetic assembly, such that a magnetic attraction is created between said ferromagnetic element and the first magnet of the first magnetic assembly upon closure of the device;

a third permanent magnet with axial magnetization is positioned under the surface of the article or accessory, said third magnet being adapted to receive the fastening means of the second magnetic assembly and to fix said second magnetic assembly to the article or accessory, said third magnet having a diameter greater than the peripheral dimensions of said second magnetic assembly and advantageously identical to the diameter of the first magnet of the first magnetic assembly, a first pole identical to the first poles of each of the two magnetic assemblies, arranged opposite the second pole of the first permanent magnet of first magnetic assembly fixed on the opposite surface, the second pole being opposite, so that when closing the device, the first pole of the third permanent magnet and the second pole of the first permanent magnet of the first magnetic assembly s attract each other across the surface magnetic;

said third permanent magnet is positioned in an open receptacle, ferromagnetic or not, adapted to receive said third permanent magnet and cooperate with the fixing means of said second magnetic assembly, said third magnet being positioned in the open receptacle so that the second pole is in contact with the bottom of the receptacle, the first pole being opposite, or the open side of the receptacle, facing the second pole of the first magnetic assembly on the opposite surface.

said third magnet is placed on the surface, either between the rear base of the second magnetic assembly and the surface of the article or accessory;

According to the invention, the double-insertion magnetic closure device by concentric interlocking can be used in all possible forms, the parts constituents that can be of identical shapes from one assembly to another, different from one assembly to another, and different on the same assembly for each element, each of the component parts of the assemblies that must be able to cooperate according to its function, ie insert, or receive, with the element of the opposite assembly in relation to the invention.

The shape of the through orifice of a workpiece not necessarily depending on the external shape of said workpiece, by way of nonlimiting example, a permanent magnet may have an oval-shaped through orifice.

By way of nonlimiting example, the first magnetic assembly comprises:

a first ferromagnetic base in the form of a square;

a first central ferromagnetic portion projecting in ovoid form;

a first magnet in the form of a magnetic ring having a circular through central orifice;

a first capsule complementary to the ferromagnetic base, in the form of a square, the orifice of the capsule being in ovoid form.

The second magnetic assembly comprises:

a second ferromagnetic base in ovoid form, of a diameter allowing its insertion into the through hole of the first capsule;

a second ferromagnetic portion projecting in square form;

a second magnet in ovoidal shape and having a central through-hole in circular form, having peripheral dimensions less than the diameter of the through-orifice of the first magnet, said central orifice passing through the second magnet having a diameter greater than the peripheral dimensions of the two parts in protrusion;

a second capsule of non-magnetic material of ovoidal shape and having dimensions capable of cooperating, or of being inserted into the ovoid orifice of the first capsule of the first set, said second capsule having a rectangular through-orifice having superior peripheral dimensions at the peripheral dimensions of the two projecting parts, respectively the first protruding ferromagnetic portion of the first assembly and the second square ferromagnetic portion projecting from the second magnetic assembly, as well as peripheral dimensions less than the diameter of the through orifice of the second magnet.

Other aspects, objects and advantages of the invention will appear on reading the following detailed description of a preferred embodiment thereof, all the parts constituents of magnetic assemblies being represented in circular forms, by way of non-limiting examples and with reference to the appended drawings in which:

Figures 1 and 2 are exploded perspective views of the component parts of the closure device, respectively of the first magnetic assembly (F) and the second magnetic assembly (M);

Figures 3, 4, 5, 6 and 7 are front views of the constituent parts of the first magnetic assembly (F);

Figures 8, 9, 10, 11, 12 are front views of the constituent parts of the second magnetic assembly (M);

- Figures 13 and 14 are sectional views of the magnetic assemblies in the open position, respectively the second and the first magnetic assembly, according to a first embodiment;

Figure 15 is a sectional view of the magnetic assemblies (M, F) in the closed position, according to an embodiment identical to Figures 13 and 14;

- Figure 16 is a sectional view of the magnetic assemblies (M, F) in the open position, according to another embodiment;

Figure 17 is a sectional view of the magnetic assemblies (M, F) in the closed position, according to an embodiment identical to Figure 16;

Figure 18 is a sectional view of the magnetic assemblies (M, F) attached to an article or accessory, in the open position, according to another embodiment;

Figure 19 is a sectional view of the magnetic assemblies (M, F) attached to an article or accessory, in the closed position, according to an embodiment identical to Figure18;

Figure 20 is a sectional view of the magnetic assemblies (M, F) attached to an article or accessory, in the open position, according to another embodiment;

The magnetic closure device according to the present invention will be described in several embodiments referring to articles or accessories by way of non-limiting example.

The fixing brackets described as fixing means with reference to the drawings are given by way of non-limiting example. Such a closure device can cooperate with other types of fastening means.

Such a device can be placed anywhere that the need to removably connect two parts is necessary. With reference to Figures 1 and 2, there is an exploded view of the arrangement of the constituent parts of the magnetic closure device according to the invention;

All the constituent parts of the first magnetic assembly (F) are proportional to each other while being proportional and in correlation with the constituent parts of the second magnetic assembly (M) and vice versa, all the constituent parts of the second magnetic assembly. (M) are proportional to each other while being proportional and in correlation with the constituent parts of the first magnetic assembly (F).

FIGS. 3, 4, 5, 6, and 7 are front views of the constituent parts of the first magnetic assembly (F), FIGS. 8, 9, 10, 11, 12 corresponding to the front view of the component parts of FIG. second magnetic assembly (M) of the magnetic closure device according to the invention;

More precisely,

The first magnetic assembly (F) is composed of:

a first ferromagnetic base (1) having a central through orifice (1 C) of a first ferromagnetic part (2) in the form of a tubular rod, having a section of smaller diameter (2B) at the orifice; therethrough (1C) of the first ferromagnetic base (1) and a section of greater diameter (2A) to said central orifice (1C), which rod (2B) is intended to pass through the first ferromagnetic base (1) by the central through orifice (1 C), the end of the smaller diameter rod (2B) being intended to cooperate with a fixing means (3), the other end of larger diameter forming a first ferromagnetic central portion projection (2A) of a diameter (D1) covering the through-orifice and extending axially with respect to the surface of the first ferromagnetic base

a first permanent magnet with axial magnetization (4) having a central through orifice (4C) of a diameter (D3) greater than the external diameter (D1) of the first projecting portion (2A)

Advantageously, the outer diameter (D4) of the magnet (4) corresponds to the diameter of the ferromagnetic base (1).

a first non-magnetic capsule (5) adapted to cover the first

magnet (4) and attaching it to the first ferromagnetic base (1), having a central through hole (5E) of a diameter (D2) smaller than the diameter (D3) of the orifice (4C) of the magnet (4). ) and greater than the diameter (D1) of the first protruding ferromagnetic part (2A).

The inner diameter and the height of the first capsule (5) being adapted to cover and fix the first magnet (4) to the first ferromagnetic base (1) The second magnetic set (M) is composed of:

a second ferromagnetic base (6) having a central through hole (6C) of a second ferromagnetic portion (7) in the form of a tubular shaft having a smaller diameter section (7B) than the through hole (6C) ) of the second ferromagnetic base (6) and a section of greater diameter (7A) to said central orifice (6C), which rod (7B) is intended to pass through the second ferromagnetic base (6) through the central through orifice (6C), the end of the smaller diameter rod (7B) being intended to cooperate with a fastening means (8), the other end of larger diameter forming a second ferromagnetic central portion projecting (7A) d a diameter (D5) covering the through-orifice (7C) and extending axially with respect to the surface of the second ferromagnetic base (6)

Advantageously and by way of nonlimiting example, the two central ferromagnetic parts protruding (2A, 7A) have an identical diameter (D1 = D5)

A second permanent magnet with axial magnetization (9) having a central orifice. through (9C), said second magnet (9) having an outer diameter (D8) smaller than the diameter (D3) of the through-orifice (4C) of the first magnet (4), said through-center orifice (9C) of the second magnet ( 9) having a diameter (D7) greater than the diameters (D1, D5) of the two projecting central ferromagnetic parts (2A), (7A), respectively of the first and second magnetic assemblies (F), (M).

A second non-magnetic capsule (10) adapted to cover the second magnet (9) and fix it to the ferromagnetic base (6), said second capsule (10) having a second central through-orifice (10E), said second capsule (10); ) having an outside diameter (D9) smaller than the diameter (D2) of the first through hole (5E) of the first capsule (5) of the first magnetic assembly (F), the diameter (D6) of the second through hole (10E) of said second capsule (10) being smaller than the diameter of the through hole (D7) of said second permanent magnet (9) and greater than the diameter (D5, D1) of the second and first protruding ferromagnetic portions (7A, 2A), respectively, second and first magnetic assemblies (M, F)

With reference to FIGS. 13 and 14, a sectional view of the two magnetic assemblies (F, M) assembled, in the open position and facing each other, is observed according to a first embodiment in which the cumulative height (H1, H3) of the two projecting portions (2A, 7A) is greater than the insertion height (H4) of the second magnetic assembly.

Concerning the first magnetic assembly (F):

The end of the smaller diameter tubular rod (2B) of the first ferromagnetic part (2) passes through the first ferromagnetic base (1) through the through hole (1C) and is crimped with the fastening means (3) on the rear base (1 B) of the first ferromagnetic base (1); The other end having a larger diameter forming a first projecting central ferromagnetic portion (2A) extending axially with respect to the surface (1A) of the first ferromagnetic base (1), having a diameter (D1), a height ( H1) and an apparent face (2C)

The first permanent magnet with axial magnetization (4) is positioned on the surface

(1A) of the first ferromagnetic base (1) so as to have a first pole (4A) in contact with said surface (1A), the other pole (4B) lying opposite, close to the upper wall (5B) of the capsule (5).

The central through hole (4C) of the first magnet (4) has a diameter (D3) greater than the diameter (D1) of the first central ferromagnetic protruding portion (2A)

Said first magnet (4) protruding with respect to the first projecting central ferromagnetic portion (2A) which is at its center.

Advantageously, and by way of nonlimiting example, the first base (1) and the first magnet (4) has an identical diameter (D4).

The first non-magnetic capsule (5) is adapted to cover the magnet (4) and attach it to the first ferromagnetic base (1), having an upper portion (5B), a sidewall (5D) and a first through-hole (5E) of a diameter (D2) smaller than the diameter (D3) of the through hole of the first magnet (4) and greater than the diameter (D1) of the first projecting central ferromagnetic portion (2A)

Advantageously, the capsule (5) also has an inner vertical wall (5A) delimiting the central through hole (5E).

The side wall (5D) of the capsule (5) is folded (5C) on the rear base (1 B) of the first ferromagnetic part (1) so as to fix all the constituent parts to each other.

Regarding the second set:

The end of the tubular rod (7B) of the second ferromagnetic portion (7) passes through the second ferromagnetic base (6) through the through hole (6C) and is crimped with the fastening means (8) on the rear base (6B) of said second ferromagnetic base (6); the other, larger diameter protruding end (7A) extending axially in relation to the surface (6A) of the second ferromagnetic base (6), having a diameter (D5), a height (H3) and a apparent face (7C)

The second permanent magnet (9) is positioned on the surface (6A) of the ferromagnetic base (6) so as to have a first pole (9A), identical to the first pole (4A) of the first magnet (4) of the first set ( F) in contact with said surface (6A), the other pole (9B) lying opposite, near the upper wall (10B) of the second capsule (10). Said second magnet (9) having a diameter (D8) smaller than the diameter (D3) of the through-hole of the first magnet (4) of the first magnetic assembly (F) and a through-orifice (9C) of a diameter (D7) greater than the diameters (D1.D5) of the two protruding central ferromagnetic parts (2A.7A).

Said second magnet (9) protruding with respect to the second projecting portion (7 A)

The second non-magnetic capsule (10) is adapted to cover the magnet (9) and attach it to the second ferromagnetic base (6), having an upper portion (10B), a sidewall (10D) and a second central through hole (10E).

Advantageously, the capsule (10) also has an inner vertical wall (10A) delimiting the central through hole (10E).

The side wall (10D) of the capsule (10) is folded (10C) on the rear base (6B) of the second ferromagnetic base (6) so as to fix all the constituent parts to each other.

The second capsule (10) has an outer diameter (D9) smaller than the diameter (D2) of the through hole (5E) of the first capsule (5).

The through orifice (10E) of the second capsule (10) has a diameter (D6) smaller than the diameter (D7) of the through orifice (9C) of the second magnet (9) and greater than the outside diameter (D5, D1). the second and first protruding ferromagnetic portion (7A, 2A).

With reference to the invention and according to this type of embodiment, the sum of the cumulative heights (H1, H3) of the two projecting parts (2A, 7A), respectively of the first and second magnetic assemblies (F, M) is greater than the insertion height (H4) of the second magnetic assembly (M).

The height of the projecting parts (2A, 7A) is not necessarily identical from one set to another, but always set back relative to their respective magnet (4, 9).

The insertion height (H2) of the first magnetic assembly (F) is substantially equal to the height (H5) of the second magnetic assembly (M).

With reference to FIG. 15, the closed magnetic closure device according to the invention is shown in section and according to an embodiment identical to FIGS. 13 and 14.

On the one hand, the concentric configuration combined with the specific and proportional heights of the constituent parts of the magnetic closure device according to the invention, the second magnetic assembly (M) is inserted into the first set (F), thus generating a first insertion.

At the same time, the first protruding ferromagnetic part (2A) is inserted in the orifice (10E) of the second assembly (M), generating the second insertion according to the invention. The two magnetic assemblies (F, M) being magnetically connected by the two apparent faces (2C, 7C) of the two protruding parts (2A, 7A), the first (4) and the second (9) magnet being found more or less on the same horizontal plane.

In relation to the cumulative height (H1, H3) of the two protruding portions (2A, 7A) greater than the insertion height (H4) of the second magnetic assembly (M), said protruding portions (2A, 7A), respectively of the first (F) and second (M) magnetic assemblies, meet and connect before the upper part (10B) of the capsule (10) of the second magnetic assembly (M) is in contact with the surface (1A) of the first set (F).

This type of embodiment to limit the wear of the appearance parts that are mainly the front of the capsules.

With this type of embodiment, the insertion height (H2) of the first magnetic assembly (F) is free as a function of the desired insertion of the second magnetic assembly (M).

Insofar as a flush insertion of the two magnetic sets (F, M) would be desirable, the insertion height (H2) of the first magnetic set (F) is equal to the sum of the heights (H1, H3) of the two parts protruding (2A, 7A), accumulated at the height (H6) (fig14) at the height of the ferromagnetic base (6) and the rear portion (10C) of the capsule (10).

With reference to FIG. 16, the magnetic closure device is seen in section and in the open position according to another embodiment in which the cumulative height (H1, H3) of the two central ferromagnetic parts projecting (2A, 7A) is equal to the insertion height (H4) of the second magnetic assembly (M), providing the magnetic closure device with a double connection cumulated with the double insertion.

The heights (H1, H3) of the projections (2A, 7A) are not necessarily identical.

With reference to FIG. 17, the magnetic closure device is seen in section and in a closed position according to an embodiment identical to FIG.

The cumulative heights (H1, H3) of the two projecting portions (2A, 7A), respectively of the first (F) and second (M) magnetic set, being equal to the insertion height (H4) of the second magnetic set (M ). When the two magnetic assemblies are connected, the upper part (10B) of the second magnetic assembly (M) comes into contact with the surface (1A) of the first ferromagnetic base (1) of the first magnetic assembly (F). The second pole (9B) of the second magnet (9) of the second magnetic unit (M) is located close to the surface (1A) of said first ferromagnetic base (1), thereby generating additional magnetic attraction, in addition to the connection of the two projecting central ferromagnetic parts (2A, 7A) and the double insertion, the second set (M) in the first set (F) and the first projecting central ferromagnetic part (2A) in the second set ( M)

With respect to this embodiment, the insertion height (H4) of the first magnetic assembly (F) also remains free depending on the insertion of the desired second magnetic assembly.

However, insofar as a flush insertion of magnetic assemblies would be desired, the insertion height (H2) of the first magnetic set (F) is this time equal to the height (H5) (FIG. 14) of the second magnetic set. (M).

With reference to FIG. 18, the magnetic closure device, in accordance with the invention and according to an embodiment identical to FIGS. 13, 14 and 15, is observed in section with either a cumulative height of the projecting ferromagnetic parts (2A, 7A) greater than the insertion height (H4) of the second magnetic assembly (M), fixed on an article or accessory.

The two magnetic assemblies (F, M) are each fixed on a surface (15A, 15) distinct from the article or accessory, facing one another and intended to be removably connected and magnetically held during the approximation and closure of the two magnetic assemblies (F, M)

The magnetic assemblies (F, M) are fixed on the surface, respectively (15A,

15) of the article or accessory by means of the fastening means 3, 8. Said fastening means being inserted through the surfaces (15A, 15) of the article or accessory and each cooperating with a ferromagnetic element (14A, 14), represented here in the form of a ferromagnetic counter plate, said ferromagnetic elements being placed under the surface of the article or accessory and adapted to receive the fastening means (3, 8) of the assemblies

Magnetic (F, M).

The fastening means (3, 8) being folded horizontally after being inserted into the ferromagnetic element (14A, 14) so that the two magnetic assemblies (F, M) are attached to the article or accessory

Due to the specific configuration of the magnetic closure device according to

According to the invention, the first magnetic assembly (F) is able to magnetically cooperate with the ferromagnetic element (14) serving as a means of attachment to the second magnetic assembly (M) opposite, resulting in additional magnetic retention of the assemblies. .

The ferromagnetic element (14) has an outer diameter greater than the diameter (D9) (Fig. 14) of the second magnetic assembly (M) and advantageously a diameter equivalent to the diameter (D4) of the first magnet (4) of the first magnetic assembly (F). In order to allow a connection of the two magnetic assemblies (F, M) including the connection of the magnet (4) of the first set (F) to the ferromagnetic element (14) when closing the device, the insertion height (H2) (Fig.13) of the first magnetic assembly (F) is equal to the sum of the heights (H1, H3) (Fig.13, 14) of the two central ferromagnetic parts projecting (2A, 7A) accumulated at the height (H6) (Fig14) of the ferromagnetic base (6) and the rear part (10C) of the first capsule (10) of the second magnetic assembly (M)

With reference to FIG. 19, the magnetic closure device according to the invention is seen in section in the closed position according to an embodiment identical to FIG. 18.

The two surfaces (15, 15A) of the article or accessory are detachably connected to each other by closing the closing device.

The second magnetic assembly (M) is inserted and magnetically connected to the first magnetic assembly (F) by the apparent faces (7C, 2C) of the two protruding ferromagnetic parts (7A, 2A) respectively of the second (M) and first (F) magnetic set.

The insertion height (H2) (FIG. 13) of the first magnetic assembly (F) allowing the complete and flush insertion of the second magnetic assembly (M), during the closing of the magnetic device, the upper part of the first capsule (5B) of the first magnetic assembly (F) is in contact on the opposite surface (15) of the article or accessory, the second pole (4B) of the first magnet (4) being thereby close to the ferromagnetic element (14), resulting in a magnetic attraction between the two elements, respectively the first magnet (9) and the ferromagnetic element (14).

The non-magnetic capsule and the surface of the article or accessory passing through the magnetic fields of the magnet (9).

Referring to another embodiment not illustrated, said ferromagnetic element (14) can also be placed on the surface (15) of the article or accessory, or between the rear base (6B) of the second (M) magnetic assembly and the surface (15) of the article or accessory.

Said ferromagnetic element (14) having in this context, not intended to fix the second magnetic assembly (M) to the article or accessory but being adapted to cooperate with the fastening means (8) of said second magnetic assembly (M) .

With reference to FIG. 20, another type of embodiment of the magnetic closure device, similar to FIGS. 18 and 19, is seen in section and in the open position, with the difference that: The ferromagnetic element (14) is replaced by a third permanent magnet with axial magnetization (16), having a first pole (16A) identical to the first pole (4A, 9A), the first (4) and second (9) magnet permanent, respectively of the first (F) and second set (M) magnetic, and a second pole (9B), identical to the second pole (4B, 9B) of the first (4) and second (9) permanent magnet, respectively of the first ( F) and second (M) magnetic assembly,

Said third permanent magnet (16) being placed under the surface (15) of the article or accessory, so that the first pole (16A) is adjacent, either in contact with the surface (15) of the article or accessory, the second pole (16B) being opposite.

Said third magnet (16) being adapted to cooperate with the fastening means (8) of the second magnetic assembly (M) so as to fix said second magnetic assembly to the article or accessory, and having a diameter greater than the diameter (D9) (Fig.14) of the second magnetic assembly (M). Advantageously, the diameter of the third permanent magnet (16) is equal to the diameter (D4) (FIG. 13) of the first permanent magnet (4).

The insertion height (H2) (FIG. 13) of the first magnetic assembly (F) is equal to the sum of the heights (H1.H3) (FIG. 13, 14) of the two projecting central ferromagnetic parts (2A, 7A). ) accumulated at the height (H6) (Fig14) of the ferromagnetic base (6) and the rear portion (10C) of the first capsule (10) of the second magnetic assembly (M).

Therefore, when closing the magnetic device, the second pole (4B) of the first magnet (4) of the first magnetic assembly (F) and the first pole (16A) of the third magnet (16) are found near such so that a magnetic attraction occurs through the non-magnetic surface of the article or accessory between the opposite poles (4B) (16A), respectively of the first permanent magnet (4) of the first magnetic assembly (F) and the third permanent magnet (16), generating additional support for the closure device according to the invention.

With regard to all the various embodiments previously mentioned, in particular concerning the drawings relating to the various embodiments, the representations of the poles, namely South "S" for the first pole of the magnets and North "N" for the second pole of the magnets, are given in FIG. as a non-limitative example.

The North Pole can be placed as the first pole and the South Pole as the second pole.

Similarly, the fixing of the capsules (5, 10) by crimping their side walls (5D, 10D) forming a return (5C, 10C) on the rear bases (1 B, 6B) of the magnetic assemblies is given as non-limiting example. It can be understood that the capsule may have any specificity, in particular small tabs, in order to maintain the various constituent parts of the magnetic assemblies.

The magnetic closure device according to the invention being particularly intended to removably connect a first surface and a second surface of an article or accessory.

Those skilled in the art will appreciate, with respect to known magnetic closure devices, a magnetic closure device that makes it possible to provide automatic centering of the assemblies combined with a double insertion of said assemblies, and in particular an integral insertion so as to propose a Magnetic closure device extremely fine and aesthetic while ensuring optimal support.

Claims

1. Magnetic closure device by concentric interlocking parts constituting two magnetic assemblies (F, M), the constituent parts of each of the magnetic assemblies interlocking around an identical central axis, the constituent parts of a magnetic assembly being proportional and complementary to the constituent parts of the other magnetic assembly, each of the magnetic assemblies comprising a permanent magnet with axial magnetization (4, 9), said magnets of each of the two assemblies being placed so as to present an identical pole opposite said magnetic closure device for detachably connecting a first surface (15A) and a second surface (15) characterized in that:

a first magnetic assembly (F) for attachment to a first surface (15A) of an article or accessory comprising:

a first ferromagnetic base (1) having a central through orifice (1 C); a first ferromagnetic part (2) in the form of a tubular rod, having a thinner section (2B) and a wider section (2A), the thinner section (2B) being adapted to pass through the orifice through-center (1 C) of the first ferromagnetic base (1), the end of said thinner section (2B) being intended to cooperate and to be fixed with the fixing means (3) of the first magnetic assembly (F), the other wider section of the tubular shaft forming a first projecting ferromagnetic central portion (2A) overlying the central through hole (1C) and extending axially with respect to the surface (1A) of the first ferromagnetic base ( 1);

a first permanent magnet with axial magnetization (4), having a height greater than the height (H1) of the first ferromagnetic central portion (2A) and having a through-center orifice (4C) with a diameter (D3) greater than the dimensions peripherals (D1) of said first ferromagnetic protruding portion (2A), said first permanent magnet (4) being disposed on the surface (1A) of the first ferromagnetic base (1), ie, the outer periphery of the first ferromagnetic central portion protruding (2A), said first permanent magnet (4) extending axially with respect to the surface (1A) of the first ferromagnetic base (1) and projecting from said first portion central ferromagnetic protrusion (2A) at its center, a first pole (4A) being in contact with the surface (1A) of the first ferromagnetic base (1), the second pole (4B) being axially opposite ;

a first non-magnetic capsule (5) adapted to cover the first permanent magnet (4) and fix it to the first ferromagnetic base (1), said first capsule (5) having an upper part (5B), an external lateral wall ( 5D), and a first through-hole (5E), the diameter (D2) of said first through hole (5E) of said first cap (5) being smaller than the diameter (D3) of the through-hole (4C) of the first magnet permanent (4) and greater than the peripheral dimensions (D1) of the first protruding central ferromagnetic part (2A);

a second magnetic assembly (M) for attachment to a second surface (15) of the article or accessory comprising:

a second ferromagnetic base (6) having a second central through orifice (6C), said second ferromagnetic base (6) having peripheral dimensions smaller than the diameter (D2) of the through orifice (5E) of the first capsule (5) the first magnetic assembly (F) so as to be inserted into said orifice (5E) of said first capsule (5) of said first magnetic assembly (F);

a second ferromagnetic part (7) in the form of a tubular rod, having a thinner section (7B) and a wider section (7A), the thinner section (7B) being adapted to pass through the second orifice through-center (6C) of the second ferromagnetic base (6), the end of said thinner section (7B) being intended to cooperate and to be fixed with the fastening means (8) of the second magnetic assembly (M), another wider section of the tubular shaft forming a second protruding ferromagnetic central portion (7A) overlying the second central through hole (6C) and extending axially with respect to the surface (6A) of the second ferromagnetic base (6) ;

a second permanent magnet with axial magnetization (9) having a height greater than the height (H3) of the second projecting central ferromagnetic part (7A) and having a through central orifice (9C), said second permanent magnet (9) having a diameter (D8) smaller than the diameter (D3) of the through-orifice (4C) of the first permanent magnet (4) of the first magnetic assembly (F), said through-orifice (9C) of said second permanent magnet (9) having a diameter (D7) greater than the peripheral dimensions (D1, D5) of the first (2A) and second (7A) projecting ferromagnetic portion, respectively of the first (F) and second (M) magnetic assembly, said second magnet (9) being disposed on the surface (6A) of the second ferromagnetic base (6), extending on the outer periphery of the second projecting portion (7A), axially in relative to the surface (6A) of the second ferromagnetic base (6) and projecting from said central second central ferromagnetic portion (7A) located at its center, a first pole (9A), identical to the first pole (4A) of the first permanent magnet (4) of the first magnetic assembly (F) being in contact with the surface (6A) of the second ferromagnetic base (6), the second pole (9B) being axially opposite;

a second non-magnetic capsule (10) adapted to cover the magnet (9) and fix it to the ferromagnetic base (6), said second capsule (10) having an upper part (10B), a side wall (10D) and a second central through hole (10E), said second capsule (10) having peripheral dimensions (D9) smaller than the diameter (D2) of the first through hole (5E) of the first capsule (5) of the first magnetic assembly (F), the diameter (D6) of the second through-orifice (10E) of said second capsule (10) being smaller than the diameter (D7) of the through orifice of said second permanent magnet (9) and greater than the peripheral dimensions (D5, D1) of the second (7A) and first (2A) protruding portions, respectively, of the second (M) and first (F) magnetic assembly;

in such a way that when the two magnetic assemblies (F, M) are brought together, the first magnetic assembly (F) and the second magnetic assembly (M) are automatically axially aligned, the second magnetic assembly (M) is inserted into the first central opening (5E) of the first capsule (5) of the first magnetic assembly (F) thereby generating a first insertion, at the same time, the first protruding central ferromagnetic portion (2A) of the first magnetic assembly (F); inserts into the second central orifice (10E) of the second capsule (10) of the second magnetic assembly (M), thereby generating the second insertion, the first (4) and second (9) magnet, respectively of the first (F) and second (M) magnetic assembly are found more or less on the same horizontal plane, the first (2A) and the second (7A) projecting ferromagnetic portion, respectively of the first (F) and second (M) magnetic assembly are connected to the one to another and my Magnetically hold the first (F) and the second (M) magnetic set.

Magnetic concentric interlocking device according to Claim 1, characterized in that the cumulative height (H1 .H3) of the projecting central ferromagnetic parts (2A, 7A), ie the height of overhang in relation to the surface ( 1A, 6A) of their respective ferromagnetic base (1, 6) is greater than the insertion height (H4) of the second magnetic set (M), said insertion height (H4) of the corresponding second magnetic set (M). at the height between the second ferromagnetic surface (6A) and the upper part (10B) of the second non-magnetic capsule (10), so that when connecting and inserting the magnetic assemblies (F, M), only the projecting central ferromagnetic parts (2A, 7A) are connected to each other, while the upper part of the second magnetic assembly (M), corresponding to the upper part (10B) of the second capsule (10), is not in contact with the surface (1A) of the first ferromagnetic base (1) of the first magnetic assembly (F) .

Concentric interlocking magnetic closure device according to claim 1, characterized in that the cumulative height (H1, H3) of the protruding portions is equal to the insertion height (H4) of the second magnetic unit (M) of such that, in addition to the connection of the two projecting central ferromagnetic parts (2A, 7A) when closing the device, the upper part (10B) of the second magnetic assembly (M), corresponding to the upper part (10B) of. the second capsule (10) is connected to the surface of the first ferromagnetic base (1A) of the first magnetic assembly (F), resulting in a double connection of the assemblies, ie a connection of the two projecting central ferromagnetic parts (2A, 7A) accumulated at the connection of the second magnet (9) of the second magnetic assembly (M) to the surface (1A) of the first ferromagnetic base (1) of the first magnetic assembly (F).

4. concentric interlocking magnetic closure device according to any one of the preceding claims, characterized in that, the insertion height (H2) of the first magnetic assembly (F) allows the total and flush insertion of the second magnetic assembly (M) such that the upper part of the first magnetic assembly (F), ie the upper part (5B) of the first capsule (5) comes to rest on the opposite surface (5), on the outer periphery of the second magnetic assembly (M).

Magnetic nesting device according to claim 4, characterized in that the first magnetic assembly (F) is adapted to cooperate with a ferromagnetic element (14) placed under the surface (15) of the article or accessory. , said ferromagnetic element (14) being adapted to receive the securing means (8) of the second magnetic assembly (M) and securing said second magnetic assembly (M) to the article or accessory, said ferromagnetic element (14) having dimensions peripheral devices of peripheral size (D9) of said second magnetic assembly (M) and advantageously of dimensions identical to the diameter (D4) of the first permanent magnet (4) of the first magnetic assembly (F), so that a magnetic attraction is created between said ferromagnetic element (14) and the first magnet (4) of the first magnetic assembly (F) through the non-magnetic surface (15) of the article or accessory when closing the device.

Concentric interlocking magnetic closure device according to claim 5, characterized in that the ferromagnetic element (14) is positioned on the rear base (6B) of the second magnetic assembly (M), or between the rear base (6B). the second magnetic assembly (M) and the surface (15) of the article or accessory, said ferromagnetic element (14) permitting the passage of the fastening means (8) of said second magnetic assembly (M), so that a magnetic attraction is created between said ferromagnetic element (14) and the first magnet (4) of the first magnetic assembly (F) during closure of the device.

Magnetic concentric interlocking device according to claim 4, characterized in that a third permanent magnet (16) with axial magnetization is positioned under the surface (15) of the article or accessory, said third magnet (16) being adapted to receive the securing means (8) of the second magnetic assembly (M) and securing said second magnetic assembly (M) to the article or accessory, said third magnet (16) having a diameter greater than the peripheral dimensions (D9) said second magnetic assembly (M) and advantageously identical to the diameter (D4) of the first magnet (4) of the first magnetic assembly (F), a first pole (16A), identical to the first poles (4A, 9A) of each of the two sets magnets (F, M), is arranged facing the second pole (4B) of the first permanent magnet (4) of the first magnetic assembly (F) fixed on the opposite surface (15A), the second pole (16B) being at the opposite, so when closing the device, the first pole (16A) of the third permanent magnet (16) and the second pole (4B) of the first permanent magnet (4) of the first magnetic assembly (F) attract each other through the non-magnetic surface (15).

8. concentric interlocking magnetic locking device according to claim 7, characterized in that said third permanent magnet (16) is positioned in an open receptacle, ferromagnetic or not, adapted to receive said third permanent magnet (16) and cooperate with the fastening means (8) of said second magnetic assembly (M), said third magnet (16) being positioned in the open receptacle so that the second pole (16B) is in contact with the bottom of the receptacle, the first pole (16A ) being opposite, or on the open side of the receptacle, facing the second pole (4B) of the first magnetic assembly (F) on the opposite surface (15A).

A concentric interlocking magnetic closure device according to claim 8, characterized in that said third magnet (16) is placed on the surface (15), either between the rear base (6B) of the second magnetic assembly (M) and the surface (15) of the article or accessory;