Fastening system with magnetic toggle lock

By introducing a second magnet into the locking device to cooperate with the actuation device, combined with a cam and guide wall, the problem of cumbersome disassembly of existing fastening systems is solved, and convenient disassembly of attachment parts is achieved.

CN120969324APending Publication Date: 2025-11-18FAURECIA INTERIEUR IND
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Patent Information

Application Number
CN202510610824.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-05-17
Filing Date
2025-05-13
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing fastening systems require the actuating magnet to be permanently held in place during disassembly to prevent the locking components from re-engaging, making disassembly operations cumbersome.

Method used

The second magnet of the locking device support cooperates with the second magnet of the locking member to push the locking member into the unlocking configuration, and the magnetic field is enhanced by the actuation device to maintain the unlocking configuration. Combined with the design of the cam and guide wall, the disassembly process is simplified.

Benefits of technology

It enables convenient removal of the attached parts from the main parts without the need to continuously maintain the actuator, simplifying the operation process.

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Abstract

The invention relates to a fastening system with a magnetic toggle lock. The fastening system (10) comprises: a base (20) comprising a first locking element (28); a locking device (50) comprising: a support (52) comprising a first magnet (60); and a locking member (70) mounted to rotate about an axis of rotation (R) between a locked configuration and an unlocked configuration; the locking member (70) comprises: a first magnet (84) capable of cooperating with a first magnet (62) of the support (52) to urge the locking member (70) towards the locked configuration; and a second magnet (86). The support (52) of the locking device (50) includes a second magnet (62) capable of cooperating with the second magnet (86) of the locking member (70) to urge the locking member (70) towards the unlocked configuration.
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Description

Technical Field

[0001] This invention relates to a system for fastening an attachment member to a main member, the system comprising:

[0002] - A base designed to be rigidly connected to the main component, the base including a first locking element;

[0003] - A locking device designed for rigid connection to the attachment member, the locking device comprising:

[0004] - A support member, the support member including a first magnet; and

[0005] - A locking member, which is rotatably mounted on the support along the axis of rotation between the following:

[0006] - A locking configuration in which the second locking element of the locking member is adapted to engage with the first locking element of the base to secure the attachment member to the main member;

[0007] -Unlocking configuration, wherein the second locking element of the locking member is arranged at a distance from the first locking element of the base so as to allow the attachment member to disengage from the main member;

[0008] The locking component includes:

[0009] A first magnet, which can cooperate with a first magnet of a support member to push the locking member toward the locking configuration;

[0010] - Second magnet. Background Technology

[0011] This fastening system is disclosed in US 3,681,727.

[0012] In this fastening system, the first locking element can be likened to the edge portion of the opening in the housing, and the second locking element can be likened to a blocking anchor. The system uses an actuating magnet to drive the locking members from a locked configuration to an unlocked configuration.

[0013] However, this fastening system is not entirely satisfactory. In fact, during the removal of the locking device from the base, the actuating magnet must be permanently held against one of the magnets of the locking member to prevent the locking anchor and the edge portion of the housing opening from re-engaging and to prevent disassembly.

[0014] This makes disassembly a cumbersome operation for operators who wish to separate the base and locking device. Summary of the Invention

[0015] Therefore, the object of the present invention is to provide a fastening system that makes it easier to remove the attached parts from the main parts.

[0016] Therefore, the present invention relates to a fastening system of the aforementioned type, wherein the locking device support includes a second magnet adapted to engage with a second magnet of the locking member to push the locking member toward the unlocking configuration.

[0017] In this way, the engagement between the second magnet of the locking support and the second magnet of the locking member keeps the locking member in the unlocked configuration. Therefore, an operator wishing to separate the attachment from the main component does not need to hold any actuating device in place to achieve this. This makes it easier to detach the attachment from the main component.

[0018] According to other advantageous aspects of the invention, the fastening system includes one or more of the following features, either individually or in any technically feasible combination:

[0019] - The locking device support includes a base extending in a plane defined by a longitudinal direction and a transverse direction, the base having a first portion including a first magnet of the support and a second portion including a second magnet of the support, the first magnet and the second magnet of the locking device support being permanently mounted in the base of the locking device support;

[0020] -The first and second parts of the locking device support base are arranged side by side in the longitudinal direction.

[0021] The locking member is capable of rotating about a rotation axis on the support base between a locking configuration and an unlocking configuration. This rotation axis is substantially parallel to the lateral direction and is arranged between the first and second portions of the support base.

[0022] The locking component includes:

[0023] - A first extension, which extends in a first extension direction substantially perpendicular to the axis of rotation and includes a first magnet with a locking member;

[0024] - A second extension, which extends in a second extension direction substantially perpendicular to the axis of rotation and includes a second magnet with a locking member;

[0025] - The first extension direction and the second extension direction form an angle between 120° and 150°;

[0026] - The fastening system also includes an actuation device for driving the locking member from a locking configuration to an unlocking configuration.

[0027] The actuation device includes an actuating magnet adapted to be close to a second magnet arrangement of the support member, such that the magnetic field of the actuating magnet is added to the magnetic field of the second magnet of the support member, thereby driving the second magnet of the locking member toward the second magnet of the support member and causing the locking member to move into an unlocked configuration.

[0028] When the actuating magnet moves away from the second magnet of the locking device support, the second magnet of the locking device support engages with the second magnet of the locking member to keep the locking member in the unlocked configuration;

[0029] The base includes a bottom wall and at least one side wall, the bottom wall and the at least one side wall defining a housing.

[0030] The locking device is movable between the following in an insertion direction that is substantially perpendicular to the bottom wall:

[0031] - Press-down position, wherein the locking member extends into the housing, and wherein a second locking element of the locking member is adapted to engage with a first locking element of the base; with

[0032] - Release position, wherein the locking member extends outside the housing, and wherein the second locking element of the locking member is spaced apart from the first locking element of the base;

[0033] -When the locking device is in the depressed position and the locking member is in the unlocked configuration, move the locking device from the depressed position to the released position so that the locking member moves to the locked configuration;

[0034] -The fastening system enables:

[0035] - The base includes at least one cam;

[0036] - The locking component includes at least one cam follower;

[0037] When the locking device moves from the pressed position to the released position, at least one cam follower of the locking member engages with at least one cam of the base, causing the locking member to be driven toward the locking configuration;

[0038] - At least one cam is formed by a component extending from the bottom wall of the base, and at least one cam follower is formed by a pin of the locking member extending in a direction substantially parallel to the axis of rotation;

[0039] - The locking device support includes at least one guide wall, which is designed to engage with at least one side wall of the base to guide the movement of the locking device in the insertion direction between a release position and a press-down position;

[0040] -The fastening system enables:

[0041] -The first locking element of the base includes:

[0042] - Hooking surface, which extends substantially perpendicular to the insertion direction; and

[0043] - Surface, which is inclined relative to the hooking surface;

[0044] -The second locking element of the locking member includes:

[0045] - Hook, when the locking member is in the locking configuration, the hook can engage with the hooking surface of the first locking element to secure the attachment member to the main member;

[0046] - An inclined surface that, when the locking device moves toward the pressed position, engages with the inclined surface of the first locking element of the base, such that when the locking device moves toward the pressed position:

[0047] - The locking member rotates around the rotation axis from the locked configuration to an intermediate configuration between the locked and unlocked configurations; then

[0048] - The locking member rotates about the axis of rotation toward the locking configuration by magnetic attraction between the first magnet of the locking member and the first magnet of the locking device support, such that the hook of the second locking element of the locking member engages with the hooking surface of the first locking element of the base to secure the attachment part to the main part. Attached Figure Description

[0049] The invention will become clearer from the following description, given only by way of non-limiting example and with reference to the accompanying drawings, in which:

[0050] [ Figure 1 ] Figure 1 It is a schematic cross-sectional view of the fastening system according to the invention along a plane that is substantially perpendicular to the extension plane of the base of the locking device support and perpendicular to the axis of rotation of the locking member, wherein the locking device is in the released position and the locking member is in the locked configuration.

[0051] [ Figure 2 ] Figure 2 yes Figure 1 A schematic diagram of a cross-sectional view of the fastening system shown along the same cross section, wherein the locking device is in the released position, the locking member is in the locked configuration, and the inclined surface of the second locking element of the locking member presses against the inclined surface of the first locking element of the base;

[0052] [ Figure 3 ] Figure 3 yes Figure 1 The schematic diagram of the fastening system shown is a cross-sectional view along the same cross section, wherein the locking device is in the released position and the locking member is in an intermediate configuration between the locking and unlocking configurations;

[0053] [ Figure 4 ] Figure 4 yes Figure 1 The schematic diagram of the fastening system shown is a cross-sectional view along the same cross section, wherein the locking device is in the depressed position, the locking member is in the locked configuration, and the hook of the second locking element of the locking member engages with the locking surface of the first locking element of the base;

[0054] [ Figure 5 ] Figure 5 yes Figure 1 The schematic diagram of the fastening system shown is a cross-sectional view along the same cross section, wherein the locking device is in the depressed position, the actuating magnet is arranged near the second magnet of the support, the locking member is in the locking configuration, and the hook of the second locking element of the locking member is spaced apart from the hooking surface of the first locking element of the base.

[0055] [ Figure 6 ] Figure 6 yes Figure 1 A schematic diagram of a cross-sectional view of the fastening system shown along the same cross section, wherein the locking device moves away from the depressed position, the actuating magnet moves away from the second magnet of the support, the locking member is in the unlocked configuration, and at least one cam follower of the locking member engages with at least one cam of the base.

[0056] [ Figure 7 ] Figure 7 yes Figure 1 The schematic diagram of the fastening system shown is a cross-sectional view along the same cross section, wherein the locking device moves away from the pressed position, and the movement of the locking device toward the released position causes engagement between at least one cam follower of the locking member and at least one cam of the base, such that the locking member is driven toward the locking configuration.

[0057] [ Figure 8 ] Figure 8 This is a schematic diagram of a cross-sectional view of the fastening system according to the invention along the same cross section, wherein the locking device is in the released position and the locking member is in the locked configuration again. Detailed Implementation

[0058] refer to Figures 1 to 8 This describes a system 10 according to the invention for attaching attachment parts to main parts.

[0059] For example, main components and attachment components are parts of a vehicle.

[0060] In a specific example, the attachment part is the vehicle trim element and the main part is the vehicle frame.

[0061] According to another specific example, the attached part is a decorative element and the main part is a decorative element support.

[0062] The fastening system 10 includes a base 20 and a locking device 50.

[0063] Advantageously, the fastening device 10 also includes an actuating device 94.

[0064] The base 20 is designed to be integrated with the main components.

[0065] The base 20 includes a first locking element 28.

[0066] Advantageously, the base 20 includes a bottom wall 22 and at least one side wall 36 that defines the housing 26. In particular, the base 20 includes two side walls 36.

[0067] Even more advantageously, the base 20 includes at least one cam 38. In particular, the base 20 includes two cams 38.

[0068] For example, the bottom wall 22 extends along an extension plane PE1 defined by the longitudinal direction X and the transverse direction Y which is substantially orthogonal to the longitudinal direction X.

[0069] For example, the bottom wall 22 defines the opening 24.

[0070] For example, the first locking element 28 includes a protrusion 30 that at least partially defines the opening 24.

[0071] The protrusion 30 includes a hooking surface 32 that extends substantially perpendicular to the insertion direction DI of the locking device 50, particularly substantially parallel to the extension plane PE1 of the bottom wall 22, and a surface 34 that is inclined relative to the hooking surface 32.

[0072] In particular, the inclined surface 34 at least partially defines the opening 24.

[0073] like Figures 1 to 8 As shown in the example, at least one sidewall 36 extends from the bottom wall 22 in a vertical direction Z that is substantially orthogonal to the longitudinal direction X and the transverse direction Y.

[0074] In a specific example where the base 20 includes two sidewalls 36, the two sidewalls 36 extend opposite each other and define the housing 26 between them and together with the bottom wall 22.

[0075] Advantageously, at least one sidewall 36 and bottom wall 22 are integral.

[0076] At least one cam 38 of the base 20 is formed by a component extending specifically in the vertical direction Z from the bottom wall 22 of the base 20, such as a wall.

[0077] In a specific example where the base 20 includes two cams 38, the two cams 38 extend in the lateral direction Y opposite to each other, particularly on both sides of the opening 24, and define the housing 26 between them and together with at least one sidewall 36 and bottom wall 22.

[0078] Advantageously, at least one cam 38 includes a cam surface 40 that is inclined relative to the extending plane PE1 of the bottom wall 22 and is oriented substantially in the direction of the bottom wall 22.

[0079] Even more advantageously, at least one cam 38 and bottom wall 22 are integral.

[0080] Even more advantageously, at least one cam 38, bottom wall 22 and at least one side wall 36 are integral.

[0081] The locking device 50 is designed to be rigidly connected to the attachment part.

[0082] The locking device 50 includes a support 52 and a locking member 70.

[0083] The locking device 50 is movable between a pressed position and a released position in an insertion direction DI that is substantially perpendicular to the bottom wall 22 of the base 20, and particularly substantially perpendicular to the extension plane PE1 of the bottom wall 22.

[0084] In the depressed position, the locking member 70 extends into the housing 26, and the second locking element 72 of the locking member 70 is adapted to engage with the first locking element 28 of the base 20.

[0085] In the released position, the locking member 70 extends out of the housing 26, and the second locking element 72 of the locking member 70 is spaced apart from the first locking element 28 of the base 20.

[0086] Advantageously, when the locking device 50 is in the depressed position and the locking member 70 is in the unlocked configuration, moving the locking device 50 from the depressed position to the release position drives the locking member 70 toward the locking configuration, as will be described in detail below.

[0087] The support member 52 includes a first magnet 60 and a second magnet 62.

[0088] Advantageously, the support member 52 includes a base 54 extending along an extension plane PE2 defined by the longitudinal direction X and the transverse direction Y. In particular, when the locking device 50 is in the depressed position, the extension plane PE2 of the base 54 of the support member 52 is substantially parallel to the extension plane PE1 of the bottom wall 22 of the base 20.

[0089] Even more advantageously, the support 52 includes at least one guide wall 64, which is designed to engage with at least one side wall 36 of the base 20 to guide the movement of the locking device 50 in the insertion direction DI between a release position and a press-down position. In particular, the support 52 includes two guide walls 64, each designed to engage with the side wall 36 of the base 20.

[0090] The base 54 specifically includes a first portion 56 and a second portion 58, the first portion including a first magnet 60 of the support 52 and the second portion including a second magnet 62 of the support 52.

[0091] Specifically, the first part 56 and the second part 58 of the base 54 of the locking device 50 support 52 are arranged side by side in the longitudinal direction X.

[0092] For example, the first portion 56 and the second portion 58 of the base 54 are arranged on both sides of the intermediate front plane PFM defined by the lateral direction Y and the vertical direction Z of the support 52, particularly symmetrical about the intermediate front plane PFM.

[0093] Advantageously, the first magnet 60 and the second magnet 62 are permanently mounted in the base 54 of the support 52 of the locking device 50. Specifically, each of the first magnet 60 and the second magnet 62 is inserted into a cavity precisely included within the base 54. In one embodiment, the first magnet 60 and the second magnet 62 are overmolded within the base 54 of the support 52.

[0094] For example:

[0095] - The magnetic poles 60A and 60B of the first magnet 60 of the support member 52 are arranged along an axis MPS1 that is substantially perpendicular to the extension plane PE2 of the base 54; and

[0096] The magnetic poles 62A and 62B of the second magnet 62 of the support member 52 are arranged along the axis MPS2, which is substantially perpendicular to the extension plane PE2 of the base 54.

[0097] Specifically, the first magnet 60 and the second magnet 62 of the support member 54 are permanent magnets.

[0098] For example, the contact friction generated by each of the first magnet 60 and the second magnet 62 of the support member 52 is between 5N and 20N.

[0099] At least one guide wall 64 of the support 52 extends from the base 54 substantially perpendicular to the extension plane PE2 of the base 54.

[0100] For example, between the release position and the press-down position, at least one guide wall 64 slides on at least one side wall 36 of the base 20.

[0101] Advantageously, in the depressed position, at least one guide wall 64 extends into the housing 26 and is applied against at least one side wall 36 of the base 20.

[0102] Even more advantageously, at least one guide wall 64 and base 54 are integral.

[0103] Locking member 70 in locking configuration (in) Figure 1 , Figure 2 , Figure 4 and Figure 8 (shown in) and unlocked configuration (in) Figure 5 and Figure 6 (as shown in the figure) are rotatably mounted on the support 52 along the axis of rotation R, and in particular on the base 54 of the support 52.

[0104] Advantageously, the locking member 70 can also be in an intermediate configuration between the locking and unlocking configurations (specifically in...). Figure 3 and Figure 7 (As shown in the figure) it rotates around the axis of rotation R on the support 52.

[0105] Specifically, the rotation axis R is substantially parallel to the transverse direction Y and extends in the longitudinal direction X between the first part 56 and the second part 58 of the base 54 of the support 52 of the locking device 50.

[0106] In the locking configuration, the second locking element 72 of the locking member 70 can cooperate with the first locking element 28 of the base 20 to fasten the locking device 50 to the base 20, and in particular, fasten the attachment part to the main part.

[0107] In the unlocking configuration, the second locking element 72 of the locking member 70 is arranged at a distance from the first locking element 28 of the base 20 so that the locking device 50 can be released from the base 20, and in particular, the attachment member can be disengaged from the main member.

[0108] The locking member 70 includes a second locking element 72.

[0109] The locking member 70 also includes a first magnet 84 and a second magnet 86.

[0110] Advantageously, the locking member 70 also includes a first extension 80 and a second extension 82.

[0111] Even more advantageously, the locking member 70 includes at least one cam follower 88. In particular, the locking member 70 includes two mating cams 88.

[0112] The second locking element 72 includes, for example, a bolt 74 extending from a proximal end 74A and a distal end 74B in a bolt direction DP substantially perpendicular to the axis of rotation R. The proximal end is rotatably mounted on the support 52, particularly on the base 54 of the support 52, and the distal end is opposite to the proximal end 74A.

[0113] For example, such as Figures 3 to 7 As shown, bolt 74, particularly the distal end 74B, is capable of extending through opening 24 in base 20.

[0114] Advantageously, the bolt 74 includes a hook 76 and a beveled surface 78 specifically arranged at the distal end 74B of the bolt 74.

[0115] When the locking member 70 is in the locked configuration, the hook 76 can engage with the hooking surface 32 of the first locking element 28 to secure the attachment member to the main member.

[0116] When the locking device 50 moves toward the pressed position, the inclined surface 78 of the bolt 74 engages with the inclined surface 34 of the first locking element 28 of the base 20, such that when the locking device 50 moves toward the pressed position:

[0117] - The locking member 70 rotates around the rotation axis R from the locked configuration to an intermediate configuration between the locked and unlocked configurations. Figure 3 );Then

[0118] - The locking member 70 rotates about the rotation axis R toward the locking configuration by magnetic attraction between the first magnet 84 of the locking member 70 and the first magnet 60 of the support member 52 of the locking device 50, such that the hook 76 of the second locking element 72 of the locking member 70 engages with the hooking surface 32 of the first locking element 28 of the base 20 to secure the locking device 50 to the base 20, and in particular, secures the attachment member to the main member ( Figure 4 ).

[0119] When the hook 76 of the second locking element 72 of the locking member 70 engages with the hooking surface 32 of the first locking element 28 of the base 20, the locking device 50 is prevented from moving from the pressed position to the released position in the insertion direction DI.

[0120] The first extension 80 extends in a first extension direction DE1 that is substantially perpendicular to the axis of rotation R, and in particular extends from the proximal end 74A of the bolt 74.

[0121] Specifically, the first extension 80 extends substantially opposite to the first portion 56 of the base 54 of the support member 52, and particularly extends in the vertical direction Z.

[0122] The first extension 80 specifically includes a first magnet 84 of the locking member 70.

[0123] The second extension 82 extends in a second extension direction DE2 that is substantially perpendicular to the axis of rotation R, and in particular extends from the proximal end 74A of the bolt 74.

[0124] Specifically, the second extension 82 extends substantially opposite to the second portion 58 of the base 54 of the support member 52, and particularly extends in the vertical direction Z.

[0125] The second extension 82 specifically includes a second magnet 86 of the locking member 70.

[0126] Specifically, the second extension 82 and the first extension 80 extend in the longitudinal direction X on both sides of the bolt 74.

[0127] Advantageously, the second extension direction DE2 and the first extension direction DE1 form an angle α between 120° and 150°.

[0128] Even more advantageously, the first extension direction DE1 and the bolt direction DP form an angle β between 80° and 100°.

[0129] Even more advantageously, the second extension direction DE2 and the bolt direction DP form an angle γ between 20° and 70°.

[0130] Angles α, β, and γ depend in particular on the power of the first magnet 60 and the second magnet 62, the power of the first magnet 84 and the second magnet 86, and the distances of these magnets 60, 62, 84, and 86 from the axis of rotation R.

[0131] In embodiments where magnets 60, 62, 84, and 86 have the same power and are at the same distance from the axis R, the angle α must be exactly less than 180° - 2σ, where σ is the maximum deflection angle of bolt 74 when the locking device 50 is moved to the depressed position (between the bolt direction DP and the insertion direction DI; see...). Figure 3 ).

[0132] The first magnet 84 of the locking member 70 can cooperate with the first magnet 60 of the support member 52 to push the locking member 70 toward the locking configuration.

[0133] The second magnet 86 of the locking member 70 can cooperate with the second magnet 62 of the support member 52 to push the locking member 70 toward the unlocking configuration.

[0134] Advantageously, the first magnet 84 and the second magnet 86 of the locking member 70 are permanently mounted in the extensions 80, 82 of the locking member 70. Specifically, the first magnet 84 of the locking member 70 is inserted into a cavity precisely included within the first extension 80, and the second magnet 86 of the locking member 70 is inserted into a cavity precisely included within the second extension 82. In one embodiment, the first magnet 84 and the second magnet 86 are overmolded in the locking member 70, particularly in the extensions 80, 82.

[0135] For example:

[0136] - The magnetic poles 84A and 84B of the first magnet 84 of the locking member 70 are arranged along an axis MPV1 that is substantially perpendicular to the first extension direction DE1 of the first extension 80; and

[0137] The magnetic poles 86A and 86B of the second magnet 86 of the locking member 70 are arranged along the axis MPV2, which is substantially perpendicular to the second extension direction DE2 of the second extension 82.

[0138] Specifically, the first magnet 84 and the second magnet 86 of the locking member 70 are permanent magnets.

[0139] For example, the contact force generated by each of the first magnet 84 and the second magnet 86 of the locking member 70 is between 5N and 10N.

[0140] Advantageously, the first magnet 60 and second magnet 62 of the support member 52 of the locking device 50, the first magnet 84 and second magnet 86 of the locking member 70, and the angle α formed by the first extending direction DE1 and the second extending direction DE2 make:

[0141] -In the locking configuration, the locking member 70 is pushed toward the locking configuration by the magnetic attraction between the first magnet 60 of the support member 52 and the first magnet 84 of the locking member 70;

[0142] - In the unlocking configuration, the locking member 70 is pushed toward the unlocking configuration by the magnetic attraction between the second magnet 62 of the support member 52 and the second magnet 86 of the locking member 70; and

[0143] - In the intermediate configuration between the locking and unlocking configurations, the locking member 70 is pushed toward the locking configuration by the magnetic attraction between the first magnet 60 of the support member 52 and the first magnet 84 of the locking member 70.

[0144] Those skilled in the art will understand that the first magnet 60 of the support 52, the second magnet 62 of the support 52, the first magnet 84 of the locking member 70, the second magnet 86 of the locking member 70, and / or the angle α formed by the first extension direction DE1 and the second extension direction DE2 can be modified to switch the locking member 70 to a locked or unlocked configuration based on the angle formed by the bolt 74, particularly by the bolt direction DP and the extension plane PE1 of the bottom wall 22 of the base 20.

[0145] refer to Figures 5 to 7 When the locking device 50 moves from the pressed position to the released position, at least one cam follower 88 of the locking member 70 engages with at least one cam 38 of the base 20, particularly with the cam surface 40, such that the locking member 70 is driven toward the locking configuration.

[0146] In particular, at least one cam follower 88 is formed by a pin 90 of the locking member 70 extending in a direction substantially parallel to the axis of rotation R, and in particular extends from the bolt 74.

[0147] According to a specific example in the accompanying drawings, when the locking device 50 moves from the pressed position to the released position, each cam follower in the cam follower 88 engages with the corresponding cam 38 of the base 20, such that the locking member 70 is driven toward the locking configuration.

[0148] Advantageously, when the locking member 70 is in the unlocked configuration, during the movement of the locking device 50 toward the release position, the engagement between at least one cam follower 88 and at least one cam 38 applies a force to the locking member 70 that is greater than the magnetic attraction force applied by the second magnet 62 of the support member 52 on the second magnet 86 of the locking member 70, causing the locking member 70 to move into its locked configuration.

[0149] Even more advantageously, at least one cam follower 88 and at least one cam 38 cause the locking member 70 to move from the unlocked configuration to the locked configuration when the locking device 50 has moved sufficiently in the insertion direction DI such that the second locking element 72 (specifically hook 76) of the locking member 70 is no longer held by the first locking element 28 (specifically hooking surface 32) of the base 20. In this way, the locking device 50 and the base 20 can be disassembled while the locking member 70 returns to its locked configuration 70.

[0150] refer to Figure 4 and Figure 5 The actuation device 94 is designed to drive the locking member 70 from the locking configuration to the unlocking configuration.

[0151] The actuating device 94 can increase the magnetic field strength of the second magnet 62 of the support member 52 so that the second magnet 86 of the locking member 70 is closer to the second magnet 62 of the support member 52 and causes the locking member 70 to move into the unlocked configuration.

[0152] Specifically, the actuation device 94 includes an actuation magnet 96 adapted to be arranged close to the second magnet 62 of the support member 52, such that the magnetic field of the actuation magnet 96 is added to the magnetic field of the second magnet 62 of the support member 52, so as to bring the second magnet 86 of the locking member 70 closer to the second magnet 62 of the support member 52 and cause the locking member 70 to move to the unlocked configuration.

[0153] Specifically, refer to Figure 5 The magnetic poles 96A and 96B of the actuating magnet 96 are arranged along the axis MPA.

[0154] Specifically, still refer to Figure 5 The actuating magnet 94 is arranged opposite to the support 52, particularly the base 54, particularly the second base portion 58, such that the axis MPA of the actuating magnet 96 and the axis MPS2 of the second magnet 62 are substantially collinear, such that the magnetic field of the actuating magnet 96 is added to the magnetic field of the second magnet 62 of the support 52, so as to bring the second magnet 86 of the locking member 70 closer to the second magnet 62 of the support 52 and cause the locking member 70 to move to the unlocked configuration.

[0155] refer to Figure 5 and Figure 6 When the actuating magnet 96 moves away from the second magnet 62 of the support member 52 of the locking device 50, the second magnet 62 of the support member 52 of the locking device 50 cooperates with the second magnet 86 of the locking member 70 to keep the locking member 70 in the unlocked configuration.

[0156] As described above, it is advantageous that during the movement of the locking device 50 toward the release position, the engagement between at least one cam 38 and at least one cam follower 88 causes the locking member 70 to switch back to the locking configuration.

[0157] In the following text, please refer to Figures 1 to 8 The use of the fastening system 10 is described.

[0158] refer to Figure 1 The fastening system 10 causes the locking member 70 to be in the locked configuration and the locking device 50 to be in the released position. In this case, the first extension direction DE1 is substantially parallel to the extension plane PE2 of the base 54, and the first extension 80 is applied against the base 54.

[0159] refer to Figure 2The locking device 50 is moved to the pressed position, specifically causing at least one guide wall 64 of the support 52 to slide on at least one side wall 36 of the base 20, and specifically causing the inclined surface 78 of the locking member 70 to contact the inclined surface 34 of the first locking element 28 of the base 20.

[0160] refer to Figure 3 The locking device 50 remains in the depressed position. Specifically, the inclined surface 78 of the second locking element 72 of the locking member 70 engages with the inclined surface 34 of the first locking element 28, moving the locking member 70 to an intermediate configuration between the locking and unlocking configurations. In this intermediate configuration, the magnetic attraction between the second magnet 62 of the support member 52 and the second magnet 86 of the locking member 70 (especially in the absence of the actuating device 94) is insufficient to cause the locking member 70 to switch to the unlocking configuration. This is, for example, due to insufficient proximity between the second magnet 62 of the support member 52 and the second magnet 86 of the locking member. In this intermediate configuration, the first extending direction DE1 forms a substantially non-zero angle with the extending plane PE2 of the base 54, and the first extension 80 moves away from the base 54.

[0161] refer to Figure 4 The locking device 50 is moved to the depressed position. The locking member 70 is switched from the intermediate configuration back to the locked configuration specifically by the magnetic attraction between the first magnet 84 and the first magnet 60. The second locking element 72 of the locking member 70 cooperates with the first locking element 28 of the base 20 to prevent any movement of the locking device 50 in the insertion direction DI. In this way, the locking device 50 and the base 20 are fixed to each other, and the attachment part and the main part are also fixed to each other. In particular, the first extension direction DE1 is again substantially parallel to the extension plane PE2 of the base 54, and the first extension 80 is again applied against the base 54.

[0162] refer to Figure 5 The actuating magnet 96 is arranged close to the second magnet 62 of the support member 52. The locking member 70 then switches to the unlocked configuration. Specifically, the second locking element 72 is driven away from the first locking element 28. Specifically, the second extension direction DE2 is then substantially parallel to the extension plane PE2 of the base 54, and the second extension 82 is applied against the base 54. Advantageously, in this position, the actuating element 96 can be removed, and the locking member 70 is held in the unlocked configuration by the magnetic attraction between the magnets 62 and 86.

[0163] refer to Figure 6 The locking device 50 is moved to the release position until at least one cam follower 88 contacts at least one cam 38.

[0164] refer to Figure 7The locking device 50 remains in the depressed position. The engagement between at least one cam follower 88 and at least one cam 38 causes the locking member 70 to move from the unlocked configuration to the locked configuration until the first magnet 84 of the locking member 70 and the first magnet 60 of the support member 52 are close enough to switch the locking member 70 to the locked configuration.

[0165] refer to Figure 8 The locking device 50 is separated from the base 20, and the locking member 70 is in a locked configuration. In particular, the first extension direction DE1 is again substantially parallel to the extension plane PE2 of the base 54, and the first extension 80 is again applied against the base 54.

[0166] In the illustrated embodiment, the distance between the rotation axis R and the first magnets 60 and 84 is substantially the same as the distance between the rotation axis R and the second magnets 62 and 86.

[0167] Without departing from the scope of the present invention, the distance between the rotation axis R and the first magnets 60 and 84 may also be different from the distance between the rotation axis R and the second magnets 62 and 86.

[0168] In one specific embodiment, the magnets 60, 62, 84, and 86 have substantially the same power. Magnets with different power can be provided without departing from the scope of the invention.

[0169] As a result of the present invention, the locking member 70 is held in an unlocked configuration without requiring the actuating magnet 96 to be held in a position close to the second magnet 62 of the support member 52. This facilitates the removal of the locking device 50 from the base 20, and therefore facilitates the removal of the attachment member from the main component.

[0170] Furthermore, when the locking device 50 moves to the released position, the locking member 70 returns to the locked configuration without requiring the operator to perform any specific action for this return. All the operator needs to do is remove the locking device 50 from the base 20 to return to the locked configuration. This further simplifies the handling of the fastening system 10.

Claims

1. A system (10) for fastening an attachment member to a main member, the system comprising: - Base (20), the base being designed to be rigidly connected to the main component, the base (20) including a first locking element (28); - A locking device (50), the locking device being designed to be rigidly connected to the attachment member, the locking device comprising: - Support member (52), said support member including first magnet (60); and - A locking member (70) rotatably mounted on the support member (52) along a rotation axis (R) between the following: - Locking configuration, wherein the second locking element (72) of the locking member (70) is adapted to cooperate with the first locking element (28) of the base (20) to secure the attachment member to the main member; -Unlocking configuration, wherein the second locking element (72) of the locking member (70) is arranged at a distance from the first locking element (28) of the base (20) so as to allow the attachment member to disengage from the main member; The locking member (70) includes: - A first magnet (84), which can cooperate with the first magnet (62) of the support (52) to push the locking member (70) toward the locking configuration; - Second magnet (86); The characteristic feature is that the support member (52) of the locking device (50) includes a second magnet (62), which is capable of cooperating with the second magnet (86) of the locking member (70) to push the locking member (70) toward the unlocking configuration.

2. The fastening system (10) according to claim 1, wherein the support (52) of the locking device (50) includes a base (54) extending in an extension plane (PE2) defined by a longitudinal direction (X) and a transverse direction (Y), the base (54) including a first portion (56) and a second portion (58), the first portion including the first magnet (60) of the support (52), and the second portion including the second magnet (62) of the support (52). The first magnet and the second magnet (60, 62) of the support member (52) of the locking device (50) are permanently installed in the base (54) of the support member (52) of the locking device (50).

3. The fastening system (10) according to claim 2, wherein the first portion and the second portion (56, 58) of the base (54) of the support member (52) of the locking device (50) are arranged adjacent to each other in the longitudinal direction (X). The locking member (70) is rotatable about the rotation axis (R) on the support (52) base (54) between the locking configuration and the unlocking configuration, the rotation axis (R) being substantially parallel to the lateral direction (Y) and arranged between the first and second portions (56, 58) of the support (52) base (54). The locking member (70) includes: - First extension (80), the first extension extends in a first extension direction (DE1) substantially perpendicular to the axis of rotation (R) and includes the first magnet (84) of the locking member (70); - Second extension (82), the second extension extends in a second extension direction (DE2) substantially perpendicular to the axis of rotation (R) and includes the second magnet (86) of the locking member (70); The first extending direction (DE1) and the second extending direction (DE2) form an angle (α) between 120° and 150°.

4. The fastening system (10) according to any one of the preceding claims, the fastening system further comprising an actuation device (94) for driving the locking member (70) from the locking configuration to the unlocking configuration, The actuation device (94) includes an actuating magnet (96) adapted to be arranged close to the second magnet (62) of the support (52) such that the magnetic field of the actuating magnet (96) is added to the magnetic field of the second magnet (62) of the support (52) to bring the second magnet (86) of the locking member (70) closer to the second magnet (62) of the support (52) and cause the locking member (70) to move into the unlocking configuration. When the actuating magnet (96) moves away from the second magnet (62) of the locking device (50) support (52), the second magnet (62) of the locking device (50) support (52) cooperates with the second magnet (86) of the locking member (70) to hold the locking member (70) in the unlocked configuration.

5. The fastening system (10) according to any one of the preceding claims, wherein the base (20) includes a bottom wall (22) and at least one side wall (36), the bottom wall (22) and the at least one side wall (36) defining a housing (26), The locking device (50) is movable between the following directions in an insertion direction (DI) substantially perpendicular to the bottom wall (22): - Pressed position, wherein the locking member (70) extends into the housing (26), and wherein the second locking element (72) of the locking member (70) is adapted to engage with the first locking element (28) of the base (20); with - Release position, wherein the locking member (70) extends outside the housing (26), and wherein the second locking element (72) of the locking member (70) is spaced apart from the first locking element (28) of the base (20).

6. The fastening system (10) according to claim 5, wherein when the locking device (50) is in the depressed position and when the locking member (70) is in the unlocked configuration, moving the locking device (50) from the depressed position to the released position causes the locking member (70) to move to the locked configuration.

7. The fastening system (10) according to claim 6, wherein: -The base (20) includes at least one cam (38); - The locking member (70) includes at least one cam follower (88); When the locking device (50) moves from the pressed position to the released position, at least one cam follower (88) of the locking member (70) engages with at least one cam (38) of the base (20) such that the locking member (70) is driven toward the locking configuration.

8. The fastening system (10) according to claim 7, wherein the at least one cam (38) is formed by a component extending from the bottom wall (22) of the base (20), and the at least one cam follower (88) is formed by a pin (90) of the locking member (70) extending in a direction substantially parallel to the axis of rotation (R).

9. The fastening system (10) according to any one of claims 5 to 8, wherein the support (52) of the locking device (50) includes at least one guide wall (64) designed to cooperate with at least one side wall (36) of the base (20) to guide the movement of the locking device (50) between the release position and the press-down position in the insertion direction (DI).

10. The fastening system (10) according to any one of claims 5 to 9, wherein: -The first locking element (28) of the base (20) includes: - Hook surface (32), the hook surface extending substantially perpendicular to the insertion direction (DI); and - Surface (34), which is inclined relative to the hooking surface (32); - The second locking element (72) of the locking member (70) includes: - Hook (76), when the locking member (70) is in the locking configuration, the hook can engage with the hooking surface (32) of the first locking element (28) to secure the attachment member to the main member; - Inclined surface (78), when the locking device (50) moves toward the pressed position, the inclined surface engages with the inclined surface (34) of the first locking element (28) of the base (20) such that when the locking device (50) moves toward the pressed position: - The locking member (70) rotates about the rotation axis (R) from the locking configuration to an intermediate configuration between the locking and unlocking configurations; then - The locking member (70) rotates about the axis of rotation (R) toward the locking configuration by magnetic attraction between the first magnet (84) of the locking member (70) and the first magnet (60) of the support member (52) of the locking device (50), such that the hook (76) of the second locking element (72) of the locking member (70) engages with the hooking surface (32) of the first locking element (28) of the base (20) to secure the attachment member to the main component.

Citation Information

Patent Citations

  • Magnetically operable blocking and control device

    US3681727A