MAGNETIC FASTENING DEVICE

Description

Technical field of the invention

[0001] The present invention relates to a magnetic fastening device, in particular a fastening system comprising a mounting base and an item to be fastened, and more particularly the mounting base and the item to be fastened equipped with magnets. For example, a cup accessory and a fastening flap form a system according to the present invention. The present invention also relates to a mounting base for use in the fastening system. Previous technique

[0002] The magnetic locking / unlocking mechanism is used in the lock. This implementation is known from the prior art in magnetic anti-theft hooks / detachers.

[0003] Patent document EP2427072 describes a magnetic lock comprising two magnets that exert an attractive force on each other to ensure locking. Patent document US10 308 155 B1 discloses a universal cup holder that can be used as a cup holder or within a cup holder cavity. Description of the invention

[0004] The present invention proposes a magnetic fastening device that allows an item to be fixed to a structure while ensuring simple assembly and / or disassembly.

[0005] A first aspect of the invention relates to a magnetic fastening system comprising a magnetic fastening base and a retaining article having engagement means, the base comprising at least a first and a second retaining means which are movable back and forth between a locked position and an unlocked position, in the locked position the retaining means being able to be received in the engagement means, wherein, The first retaining means comprises at least one first movement magnet, the second retaining means comprises a second movement magnet, the article to be retained comprises at least two contact magnets, the contact magnets exert a force on the movement magnets, which maintains the first retaining means and the second retaining means in the engagement means in the locked position.

[0006] The invention is advantageously implemented according to the embodiments and variants set out below, which are to be considered individually or according to any technically feasible combination.

[0007] In one embodiment, the fastening system has the following characteristics: The first retaining means and the second retaining means are blocked from rotation by a groove.

[0008] In one embodiment, the fastening system has the following characteristics: The article to be retained includes a fixing interface comprising a recess, the engagement means have a groove shape, in the locked position the fixing base is received in the recess, the first and second retaining means serving as fixing notches engage in the groove.

[0009] In one embodiment, the fastening system has the following characteristics: the fixing base has two first magnets, whose South poles point in a direction to that of the North pole of the movement magnets, the first two magnets and the two movement magnets being arranged rotating and alternating in a plane, the article to be retained has two second magnets the first two magnets being arranged so that they exert an attractive force on the two second magnets in the locked position.

[0010] In one embodiment, the contact magnets and the second magnets are arranged rotating and alternating on a magnet support.

[0011] In one embodiment, the fastening system in the locked position can be transformed by a relative rotational displacement between the fastening base and the item to be retained into the unlocked position in which, The two second magnets exert a force on the movement magnets, which releases the first and second retaining means in the engagement means; the contact magnets exert a repulsive force on the first two magnets.

[0012] In one embodiment, the rotary displacement is 90 degrees.

[0013] In one embodiment, the fixing base and the article to be retained respectively comprise electrical contacts, the contacts being electrically linked in the locked position.

[0014] In one embodiment, the item to be retained is a cup accessory, such as a cup holder.

[0015] Another aspect of the invention relates to a vehicle comprising a fastening system.

[0016] Another aspect of the invention relates to a magnetic mounting base for retaining an article with engagement means. The base comprises a first and a second retaining means that move back and forth between a locked and an unlocked position. In the locked position, the retaining means can be received into the article's engagement means. The first retaining means comprises a first moving magnet, and the second retaining means comprises a second moving magnet. When a magnetic force is applied to each of the moving magnets, the first and second retaining means separate and are expelled to the locked position.

[0017] In one embodiment, the first retaining means and the second retaining means are blocked from rotation by a translation groove.

[0018] In one embodiment, the mounting base includes two first magnets whose South poles point in a direction to that of the North pole of the movement magnets, the first two magnets and the two movement magnets being arranged to rotate and alternate.

[0019] In one embodiment, the mounting base can be arranged as a retractable hatch in a structure, such as a center console support.

[0020] In one embodiment, the mounting base includes anti-return means, such as anti-return magnets, for maintaining the mounting base in a retracted position.

[0021] Another aspect of the invention relates to a vehicle comprising a magnetic mounting base.

[0022] Advantageously, the base's motion magnets allow the item to be held in place by applying a magnetic force to them, thus facilitating assembly and disassembly. The first magnets on the base cause it to retract under the influence of magnetic force. The presence of magnets within the item, arranged to couple with the magnets on the base, provides the necessary magnetic forces. The fact that a simple rotation is sufficient to decouple the magnets from these two parts is particularly advantageous for removing the item being held. Brief description of the figures

[0023] there Figure 1 represents a view of a magnetic fastening system comprising a mounting base and a retaining item, where the mounting base is arranged as a retractable hatch in a car center console holder; the Figure 2 represents a perspective view of a magnetic fastening system of the Figure 1, hence the item is to be fixed to the fixing base which is in a retracted state; the Figure 3A represents a view of a magnetic fastening system of the Figure 2 , hence the article to retain for cutting, approaching the fixing base; the Figure 3B represents a view of a magnetic fastening system in the locked position of the Figure 2 , hence the article to be retained for cutting is fixed to the fixing base; the Figure 3C represents a view of a magnetic fastening system in the unlocked position of the Figure 2 , hence the article to be retained in cross-section is rotated at an angle relative to the position shown on the Figure 3B ; there Figure 4 represents an arrangement of the magnets of the magnetic mounting base and an arrangement of the magnets of the item to be retained according to an embodiment; the Figure 5A represents an arrangement of the magnets of the magnetic mounting base and an arrangement of the magnets of the item to be retained from the Figure 4when the magnetic fastening system is in the locked position; the Figure 5B represents an arrangement of the magnets of the magnetic mounting base and an arrangement of the magnets of the item to be retained from the Figure 4 when the magnetic fastening system is in the unlocked position; the Figure 6 represents a partial cross-sectional view of the magnetic fastening system in the locked position according to one embodiment; the Figure 7 represents an exploded view of an item to be retained according to a particular embodiment; the Figure 8 illustrates an exploded view of a magnetic mounting base according to one embodiment. Description of the implementation methods

[0024] The different figures, as well as the elements within a single figure, are not necessarily represented at the same scale. Across all figures, identical elements share the same numerical reference.

[0025] The terminology used in this description should in no way be interpreted in a limiting or restrictive manner, simply because it is used in conjunction with a detailed description of certain embodiments of the invention.

[0026] There Figure 1 represents a view of a magnetic fastening system consisting essentially of a 200mm fixing base and a 100mm retaining clip. It is shown on Fig. 1 that the mounting base 200 is arranged as a retractable hatch in a structure 300 such as a car center console support. By way of example only, the relevant item 100 is a cup accessory, such as a cup holder. Other relevant items such as lamps are also provided for by the present invention. The relevant item 100 can be electrically connected to the mounting base 200, as illustrated in the Figure 6which will be detailed later. Structure 300 is equipped with a housing to receive the removable hatch 200. In the retracted position, hatch 200 is fully received in the housing.

[0027] There Figure 2This represents a perspective view of a magnetic fastening system according to the invention, where the fastening base is in a retracted state in which the removable hatch 200 is fully received into the housing. In one embodiment, the hatch 200 in the retracted state has an upper surface forming part of the surface of the structure 300. The retaining article 100 is provided with a fastening interface 90 by which the article 100 can be mounted to the fastening base protruding from the housing. In one embodiment, the fastening interface 90 comprises a recess 80 and engagement means 62. Preferably, the engagement means 62 are in the form of a groove. The fastening base 200 is received in the recess 80 when the article 100 is locked to the base, as illustrated in the figure. Figure 3B which will be detailed later.

[0028] There Figure 3AThis represents a view of a magnetic fastening system when the retaining item 100, shown in the cross-section, approaches the fastening base 200. Before the item 100 is placed over the hatch 200, the recess 80 is positioned opposite the upper surface of the retracted hatch 200. The hatch 200 and the retaining item 100 are equipped with the first magnets 120 and the second magnets 20, respectively. When the item 100, with its recess 80 opposite the hatch 200, is oriented in a specific direction, the second magnets 20 exert an attractive force on the first two magnets 120, allowing the hatch 200 to be released from the housing. The said determined direction, which depends on the arrangement of the first magnets 120 and second magnets 20, can be indicated on the article to be retained 100.In one embodiment, the first magnets 120 and second magnets 20 are arranged so that the second magnets 20 exert a force on the first magnets 120, the article 200 having a tendency to move in the said determined direction under the effect of this force.

[0029] Preferably, the upper surface of hatch 200 has a circular shape.

[0030] The hatch 200 comprises a first and a second set of retaining means 160 which are mobile and can be moved back and forth between a first and a second position. In the first position, the mounting base 200 can be received in the recess 80 and the retaining means 160 can be received in the engagement means 62. The Figure 3BThis represents a view of a magnetic fastening system in the locked position, whereby the item to be retained in section view is fixed to the fastening base. In the first position, the first and second retaining means 160, which act as fastening notches, engage in the groove 62. The projecting parts 162 of the retaining means 160 are engaged in the groove, thus locking the item 100.

[0031] The first retaining means 160 and the second retaining means 160 each comprise a first and second moving magnet 140, respectively. The retaining element 100 comprises two contact magnets 40. The contact magnets 40 exert a force on the moving magnets 140, which holds the first and second retaining means 160 in the engagement means 62 in the locked position. Before the retaining means 160 and the groove 62 are engaged, the contact magnets 40 begin to exert a force on the moving magnets 140, and therefore on the retaining means 160. Under the effect of this magnetic force, the retaining means 160 move and protrude from the hatch 200.

[0032] In one embodiment, the first and second retaining means 160 are blocked in rotation by a translation groove 170 along which the retaining means 160 are mobile in a back-and-forth motion.

[0033] In the locked position shown on the Figure 3B Article 100 is locked in the axial direction. However, article 100 can rotate under the effect of a torque.

[0034] There Figure 3C represents a view of a magnetic fastening system in the unlocked position, from which the item to be retained is rotated at an angle relative to the position shown on the Figure 3BFollowing a rotation from the locked position, for example by 90 degrees, the two second magnets 20 exert a force on the movement magnets 140, which allows the retaining means 160 to move to the second position in which the retaining means 160 do not protrude out of the hatch 200, thus the first and second retaining means 160 are disengaged from the groove 62. In the second position, the contact magnets 40 exert a repulsive force on the first two magnets 120, which pushes the hatch 200 back into its retracted position in the structure 300. At the same time, the force that the two second magnets 20 exert on the movement magnets 140 contributes to this repulsive effect.

[0035] There Figure 4This represents an arrangement of the magnets of the magnetic mounting base and an arrangement of the magnets of the item to be retained according to one embodiment. In the illustrated embodiment, the south poles of the first two magnets 120 of the mounting base 200 point in substantially the same direction, while the north poles of the movement magnets 140 point in substantially the same direction. The first two magnets 120 and the two movement magnets 140 are arranged in a rotating and alternating manner, for example, in a plane. The first two magnets 120 are arranged oppositely in the plane. In a preferred embodiment, these magnets 120 and 140 are arranged at equal angular distances. Preferably, the two movement magnets 140 are housed in two cavities of the retaining means 160. Advantageously, the retaining means 160 can be driven by a magnetic force exerted on the two movement magnets 140.

[0036] In one embodiment, the retaining means 160 include limiting elements 164 which come to rest against the fixing base 200 when the retaining means 160 protrude.

[0037] The article 100 to be retained comprises two secondary magnets 20 and two contact magnets 40. The contact magnets 40 and the secondary magnets 20 are arranged in a rotating and alternating manner, such that the contact magnets 40 and the secondary magnets 20 are respectively opposed. The four magnets 20, 40 are preferably in the same plane, for example, arranged on a magnet support. In a preferred embodiment, the secondary magnets 20 are arranged symmetrically with respect to the axis connecting the contact magnets 40. The four magnets 20, 40 are preferably arranged at equal angular distances.

[0038] When the item 100 to be retained approaches the fixing base 200, the magnets 20, 40 move in the direction of the indicated arrow.

[0039] There Figure 5Aillustrates the arrangement of the magnets of the magnetic base 200 and the magnets of item 100 to be retained when the magnetic fastening system is in the locked position. We observe that the magnets 20, 40 of the article 100 to be retained are in their position of attractive force, that is to say, the second magnets 20 exert an attractive force on the first two magnets 120 of the hatch 200 which allows the hatch to move towards the article 100 and to come out of its retracted state, at the same time, the contact magnets 40 exert an attractive force on the movement magnets 140 of the retaining means 160 which makes the protruding parts serving as notches 162 appear. The notches 162 engage in the groove 62 of the article 100 (not illustrated), which allows the fixing of the article 100 to the base 200, the magnetic forces between the magnets of the article 100 and the base 200 reinforcing this fixing.

[0040] In one embodiment, each notch 162 advantageously includes an electrical element 167 such as a copper electrical terminal for establishing electrical contact. In the locked position, these terminals come into contact with electrical connection elements provided in the engagement means 62 of article 100, advantageously enabling an electrical connection between the article and the mounting base.

[0041] There Figure 5B represents an arrangement of the magnets of the magnetic fixing base 200 and an arrangement of the magnets of the item 100 to be retained, after a 1 / 4 turn rotation of the item 100 to be retained. Fig. 5A relative to the mounting base 200, with the magnetic mounting system in the unlocked position. The second magnets 20 take the position of the contact magnets 40 on the Figure 5ASince the north poles of the magnets 40 are oriented in the opposite direction to those of the magnets 20, the latter exert a repulsive force on the movement magnets 140 located below the magnets 20 in this position. This causes a translational displacement of the retaining means 160 in the groove 170, so that the retaining means 160 retract and do not protrude. At the same time, the contact magnets 40 located above the first two magnets 120 exert a repulsive force on the first magnets 120, which pushes the mounting base 200 downwards into its retracted state. Simultaneously, the force that the second two magnets 20 exert on the movement magnets 140 contributes to this repulsive effect.

[0042] There Figure 6This represents a partial cross-sectional view of the magnetic fastening system in the locked position according to one embodiment. The retaining item 100 advantageously comprises two opposing electrical elements 67, such as two electrical terminals connected to an electrical circuit of the item 100, which are arranged in the engagement means 62. In the locked position, the electrical element 167 of each notch 162 comes into contact with an electrical element 67, thus establishing an electrical connection between the retaining item 100 and the fastening base 200. In one embodiment, the fastening base further comprises retaining magnets 135, 155 arranged to hold the base 200 retracted into the housing of the structure 300.

[0043] There Figure 7This represents an exploded view of a retaining article 100 according to one embodiment. The retaining article 100 essentially comprises a body 70, a magnet holder 30 which includes arrangements such as cavities 32, 34 for holding the second magnets 20 and the contact magnets 40. The body 70 has a mounting interface 90 having a recess 80 and an opening 82 through which the mounting base can be inserted for attachment. The magnet holder 30 is located above the recess 80. The retaining article 100 further includes a cover 30 which is intended to enclose the magnets 20, 40 in the cavities 32, 34.

[0044] There Figure 8This illustrates an exploded view of a magnetic retractable hatch 200 according to one embodiment. The hatch 200 essentially comprises an enclosing body having two lateral openings 112, two retaining means 160, the first magnets 120, and the movement magnets 140. The enclosing body essentially consists of a removable upper part 110 having the lateral openings 112 and a cradle 150. Preferably, the two elements 110 and 112 are assembled by a screw 190. The two retaining means 160 are movable back and forth in a translation groove 112 within the enclosing body, the outer ends 162 of the two retaining means 160 being able to protrude from the enclosing body and form notches through the lateral openings 112. Each of the two retaining means 160 includes a movement magnet 140. The first 120 magnets are held opposite each other by a magnet 130 retaining plate inside the surrounding body.The retractable hatch 200 is equipped with means to prevent the rotation of the retaining plate, and therefore of the first magnets 120, relative to the enclosing body. Preferably, the anti-return magnets 135 and 155 are provided for this purpose. The retaining plate has cavities to house the first anti-return magnets 135, which are coupled with the second anti-return magnets 155 fixed to the outside of the enclosing body, for example, on an external surface of the cradle 150.

[0045] The present invention relates generally to a magnetic fixing base 200, intended to retain an article 100 having engagement means 62 such as the cup holder of the Fig. 7The base 200 comprises a first and a second retaining means 160 which are mobile and move back and forth between a locked and an unlocked position. In the locked position, the retaining means 160 can be received into the engagement means 62 of article 100. The first retaining means 160 comprises a first movement magnet 140, and the second retaining means 160 comprises a second movement magnet 140. When a magnetic force is applied to each of the movement magnets 140, the first and second retaining means 160 move apart and are expelled towards the locked position.

[0046] In some embodiments, the first retaining means 160 and the second retaining means 160 are blocked in rotation by a translation groove 170.

[0047] In some embodiments, the mounting base 200 comprises two initial magnets 120 whose south poles point in a direction opposite to that of the north pole of the movement magnets 140. The first two magnets 120 and the two movement magnets 140 are arranged in a rotating and alternating manner.

[0048] In some embodiments, the fixing base 200 includes anti-return means, such as anti-return magnets 135, used to keep the base 200 retracted in the housing of the structure 300.

[0049] In general, the magnets used in this invention can be permanent magnets made of a ferromagnetic material.

[0050] LIST OF REFERENCE SIGNS References Designations 100 Item to remember; Cup accessory 20 Second magnet 30 Lid 32 Cavity 34 Cavity 40 Contact magnet 62 Means of engagement; Groove 67 Electric charging station 200 Mounting base; Retractable hatch 110 Removable top 112 Side opening 120 First magnet 130 Magnet mounting plate 135 First anti-reverse magnet 140 Motion magnet 150 Cradle 155 Second anti-reverse magnet 160 Means of restraint 162 locking notch 164 Stop 167 Electric charging station 170 Groove 190 Fixing screws 300 Structure ; Center console support

Claims

1. Magnetic fastening system comprising a magnetic fastening base (200) and an article (100) to be held having engagement means (62), the base (200) comprising at least one first and a second holding means (160) which are movable back and forth between a locked position and an unlocked position, in the locked position the holding means (160) being able to be received in the engagement means (62), characterised in that, - the first holding means (160) comprises at least one first movement magnet (140), the second holding means (160) comprises a second movement magnet (140), - the article (100) to be held comprises at least two contact magnets (40), - the contact magnets (40) exert a force on the movement magnets (140), which holds the first holding means (160) and the second holding means (160) in the engagement means (62) in the locked position.

2. Fastening system according to claim 1, characterised in that the first holding means (160) and the second holding means (160) are locked with respect to rotation by a translation groove (170).

3. Fastening system according to claim 1 or 2, characterised in that - the article (100) to be held comprises a fastening interface (90) comprising a recess (80), the engagement means (62) have a groove shape (62), - in the locked position, the fastening base (200) is received in the recess (80), the first and second holding means (160) serving as fastening notches come to be engaged in the groove (62).

4. Fastening system according to claim 3, characterised in that, - the fastening base (200) comprises two first magnets (120), the south poles of the two first magnets (120) and the north poles of the movement magnets (140) indicating in one and the same direction, the two first magnets (120) and the two movement magnets (140) being arranged rotatably and alternately in one plane, - the article (100) to be held comprises two second magnets (20), - the two first magnets (120) being arranged so that they exert an attraction force on the two second magnets (20) in the locked position.

5. Fastening system according to claim 4, characterised in that the contact magnets (40) and the second magnets (20) are arranged rotatably and alternately on a magnet support (30).

6. Fastening system according to one of claims 2 to 5, characterised in that< / b> the fastening system in the locked position can be transformed into the unlocked position in which, by a relative rotary movement between the fastening base (200) and the article (100) to be held, - the two second magnets (20) exert a force on the movement magnets (140), which releases the first and second holding means (160) in the engagement means (62), - the contact magnets (40) exert a repulsive force on the two first magnets (120).

7. Fastening system according to claim 6, characterised in that the rotary movement is 90 degrees.

8. Fastening system according to one of claims 1 to 7, characterised in that the fastening base (200) and the article (100) to be held respectively comprise electrical contacts (167, 67), the contacts (167, 67) being electrically connected in the locked position.

9. Magnetic fastening base (200), intended to hold an article (100) having engagement means (62), the base (200) comprises a first and a second holding means (160) which are movable back and forth between a locked position and an unlocked position, in the locked position the holding means (160) being able to be received in the means (62) of engaging the article (100), characterised in that the first holding means (160) comprises a first movement magnet (140), the second holding means (160) includes a second movement magnet (140), and that in the presence of a magnetic force on each of the movement magnets (140), the first holding means (160) and the second holding means (160) move apart and are ejected toward the locked position.

10. Magnetic fastening base according to claim 9, characterised in that the first holding means (160) and the second holding means (160) are locked with respect to rotation by a translation groove (170).

11. Magnetic fastening base according to one of claims 9 to 10, characterised in that the fastening base (200) comprises two first magnets (120), the south poles of the two first magnets (120) and the north poles of the movement magnets (140) indicating in one and the same direction, the two first magnets (120) and the two movement magnets (140) being arranged in a rotary and alternating manner.

12. Magnetic fastening base according to one of claims 9 to 11, characterised in that the fastening base (200) can be arranged in the form of a retractable hatch in a structure (300), such as a central console support.

13. Magnetic fastening base according to claim 12, characterised in that the fastening base (200) comprises anti-return means, such as anti-return magnets (135), used to hold the hatch (200) in a retracted position.

14. Vehicle comprising a fastening system according to one of claims 1 to 8.

15. Vehicle comprising a magnetic fastening base according to any one of claims 9 to 13.