CN100559987C - Magnetic fastener - Google Patents

Abstract

The present invention provides a magnetic fastener comprising first and second detachable fastening members respectively including first and second magnetic coupling surfaces magnetically attracted to each other in a magnetic coupling axial direction, the magnetic fastener includes a guard provided on one of the detachable fastening members adapted to prevent relative lateral movement of the two detachable fastening members when they are magnetically coupled, the two detachable fastening members including cooperating catch means for preventing their separation in the axial direction of the magnetic coupling when they are both in magnetic coupling and are subjected to a lateral tension perpendicular to the axial direction of the magnetic coupling, the cooperating catch means comprises means for allowing the two detachable fastening members to be axially separated in the axial direction of the magnetic coupling when the two magnetic coupling surfaces are perpendicular to the axial direction of the magnetic coupling, and means for preventing the two detachable fastening members from being askew separated.

Description

Magnetic Fasteners

technical field

The present invention relates to magnetic fasteners, and more particularly to magnetic fasteners comprising a pair of corresponding fasteners having complementary magnetic properties. Still more particularly, the present invention relates to magnetic fasteners with means for withstanding uncoupling tension applied in more than one direction. More particularly, although of course not limited thereto, the present invention relates to magnetic fasteners for use on garments such as jeans and clothing.

Background technique

Magnetic fasteners have long been widely used in consumer and household items. For example, magnetic fasteners have been used on work clothes, apparel, and accessories such as handbags and briefcases. Additionally, magnetic fasteners are used in household items such as refrigerators or closed doors. Magnetic fasteners have become more popular due to the availability of strong and small permanent magnets at low cost, such as bulk magnets with a magnetic strength higher than 1200 Gauss.

Magnetic fasteners are generally considered to be more advantageous than traditional fasteners, such as buttons, because of the convenience they provide. For example, a garment or garment having a pair of corresponding magnetic fasteners mounted on corresponding soft portions of the garment can be easily opened and closed. This soft portion of the garment can be easily closed because, once the corresponding magnetic fasteners are brought into close proximity, the mutual magnetic attraction will cause the corresponding magnetic fasteners to snap together and achieve the well-known snap closure.

However, a direct negative consequence of this ease of closure is the possible risk that accidental or accidental disengagement between the pair of corresponding magnetic fasteners can cause embarrassment in some cases and property damage in others . Furthermore, conventional magnetic fasteners are generally capable of resisting disengagement tension along a single axis, eg, along or perpendicular to the magnetic coupling axis. Therefore, fastening and loosening of corresponding magnetic fasteners is generally effected along a common magnetic force axis between two corresponding permanent magnets. However, for some applications, this simple tensile resistance is not sufficient. Accordingly, it would be highly desirable to be able to provide improved magnetic fasteners which overcome the disadvantages of conventional magnetic fasteners. More specifically, the improved magnetic fasteners should provide the same or similar convenience as conventional magnetic fasteners while reducing the risk of unwanted or accidental disengagement between corresponding magnetic fasteners. In addition, it would be highly desirable to be able to provide improved magnetic fasteners that are capable of resisting disengagement tension in more than one direction while providing the convenience provided by conventional magnetic fasteners.

Contents of the invention

It is therefore a primary object of the present invention to provide an improved magnetic fastener which alleviates the disadvantages associated with conventional or known magnetic fasteners. More specifically, it is an object of the present invention to provide an improved magnetic fastener having means for alleviating the risk of undesired or accidental release of a correspondingly coupled magnetic fastener. Another specific object of the present invention is to provide an improved magnetic fastener having means capable of resisting uncoupling tensions intended to uncouple the coupling between corresponding magnetic fasteners in more than one direction. At a minimum, it is an object of the present invention to provide the public with a useful choice of magnetic fasteners.

According to the present invention, a magnetic fastener is provided, comprising a first separable fastening component and a second separable fastening component, the first and second separable fastening components respectively comprising a first magnetic coupling surface and a second magnetic coupling surface. Two magnetic coupling surfaces, the first and second magnetic coupling surfaces are magnetically attracted to each other along the magnetic coupling axial direction, and the magnetic fastener includes a magnetic fastener suitable for preventing the first and second fastening components from being magnetically coupled relative lateral movement between first and second magnetic coupling surfaces, said first and second fastening components further comprising a magnetically coupled first and second fastening component and Co-operative catching means that prevent the first and second fastening members from separating substantially along the axial direction of the magnetic coupling when subjected to lateral tension applied perpendicularly to the axial direction of the magnetic coupling, said The cooperative locking device includes allowing the first separable fastening part and the second separable fastening part to be fastened when the first magnetic coupling surface and the second magnetic coupling surface are perpendicular to the magnetic coupling axial direction means for axial separation of the components along the axial direction of said magnetic coupling, and means for resisting skewed separation of said first and second separable fastening components.

According to a preferred embodiment of the present invention, a magnetic fastener is provided, comprising a first separable fastening component and a second separable fastening component, the first and second separable fastening components respectively comprising a first magnetic a coupling surface and a second magnetic coupling surface, the two magnetic coupling surfaces are magnetically attracted to each other along the magnetic coupling axial direction, and the magnetic fastener further includes guard means for preventing relative lateral movement between said first and said second magnetic coupling surfaces, each of said first and second fastening members comprising means for fastening said first or said second Attachment means for attachment of a component to a garment or a portion of a garment, said attachment means of said first and second fastening components being located on opposite sides of said magnetic coupling surface.

According to another aspect of the present invention, there is provided a magnetic fastener, comprising a first detachable fastening part and a second detachable fastening part, the first detachable fastening part and the second detachable fastening part respectively It includes a first magnetic coupling surface and a second magnetic coupling surface, the first and second magnetic coupling surfaces are magnetically attracted to each other along the magnetic coupling axial direction, and the magnetic fastener includes a A guard for preventing relative lateral movement between said first magnetic coupling surface and said second magnetic coupling surface when a component and a second separable fastening component are magnetically coupled, said first separable fastening component and The second separable fastening member includes a structure adapted to prevent the first and second separable fastening members from being magnetically coupled when they are simultaneously magnetically coupled and subjected to a lateral tension applied perpendicular to the axial direction of the magnetic coupling. A cooperating locking device in which the first and second separable fastening parts are separated along the axial direction of the magnetic coupling, the locking device includes a peripheral wall on the first the separable fastening member and said second separable fastening member, when magnetically coupled and in adjacent contact, extend along said magnetically coupled axial direction and around said first magnetically coupled surface and said second magnetically coupled surface, Wherein said peripheral wall is included as part of one of said separable fastening components, said peripheral wall includes a narrowed portion which rises above said one of said separable fastening components. Above the magnetic coupling surface, said narrow portion is adapted to allow passage of a magnetic coupling surface on a corresponding separable fastening component along said magnetic coupling direction, said raised narrow portion of said peripheral wall is above said corresponding separable fastening component. The magnetic coupling surfaces of the sub-fastening components are decoupled along the magnetic coupling direction while being subjected to laterally applied tension while preventing passage of the magnetic coupling surfaces of the corresponding separable fastening components.

According to a preferred embodiment of the present invention, a magnetic fastener is provided, including a ring magnet or a ring magnetic assembly and a housing, on which the magnet or the magnetic assembly is held, and the housing includes a plurality of Sewing holes are arranged in the region of the housing corresponding to the central hole of the ring magnet or ring magnetic assembly.

Preferably, said guard means includes a peripheral means for magnetically coupling said first and said second separable fastening members when said first and said second magnetic coupling surfaces are in adjacent contact. surrounding the first and the second magnetic coupling surfaces.

Preferably, said latching means includes a peripheral wall extending substantially along said magnetic coupling direction and substantially surrounding said first and said second clasping members when said first and said second clasping members are magnetically coupled and in adjacent contact. The first and said second magnetic coupling surfaces.

Preferably, said peripheral wall is included as part of one of said separable fastening components, said peripheral wall comprising a narrow portion raised to magnetic coupling of one of said separable fastening components. Above the surface, the narrow portion is adapted to allow the magnetic coupling surface on the corresponding separable fastening component to pass along the magnetic coupling direction, and the raised narrow portion of the peripheral wall basically prevents the The magnetic coupling surface of the corresponding separable fastening component passes through when the magnetic coupling surface of the corresponding separable fastening component is out of magnetic coupling along the magnetic coupling direction while being subjected to laterally applied tension.

Preferably, said first and second separable fastening members respectively comprise a first permanent magnet and a second permanent magnet, said first and second permanent magnets respectively comprise said first and second magnets of opposite magnetic polarity. A coupling surface, each of said first and said second permanent magnets is accommodated in a non-magnetic housing.

Preferably, said non-magnetic housing containing said second permanent magnet includes a flared base adapted to prevent said first and The second divisible fastening components are split longitudinally.

Preferably, on one of said separable fastening members comprising said peripheral wall, the interior of said peripheral wall includes inwardly extending flange means, and the other, corresponding separable fastening member includes outwardly extending Extended flange fittings.

Preferably, one or both of said inwardly and outwardly extending flange means comprises a substantially circumferentially extending flange portion.

Preferably, the first separable fastening component includes a first permanent magnet and the first magnetic coupling surface formed on the first permanent magnet, and the peripheral wall includes On the component, and the hole defined by the peripheral wall is higher than the surface area of the first magnetic coupling surface.

Preferably, each of said first and said second separable fastening components includes a non-magnetic housing surrounding said first and said second magnetic coupling surfaces, respectively.

Preferably, said first separable fastening component comprises a first permanent magnet, the magnetic axis of said first permanent magnet is substantially parallel to said first magnetic coupling direction, and said peripheral wall is substantially away from said magnetic coupling direction. The first magnetic coupling surface extends and surrounds the first magnetic coupling surface, and an annular portion is provided between the first magnetic coupling surface and the peripheral wall.

Preferably, said peripheral wall includes a narrow hole higher than said first magnetic coupling surface.

Preferably, said annular portion is substantially non-magnetic.

Preferably, said shielding means comprises connection means for guiding a gradual coupling between said first and said second magnetic coupling surfaces substantially along said magnetic direction.

Preferably, each of said first and second fastening components includes means for attaching said first or second fastening components to a garment or part of a garment, said first and second fastening components The connection means are located on opposite sides of the magnetic coupling surface.

Preferably, said first and second separable fastening members comprise first and second permanent magnets respectively, each said first and said second permanent magnets being surrounded by a non-magnetic housing.

Preferably, each of the permanent magnets is surrounded by a magnetic housing, and the non-magnetic housing is surrounded by a non-magnetic housing.

Preferably, attachment means for attaching said separable fastening elements to a garment or part of garment is formed on said non-magnetic housing for said first and said second separable fastening elements. The connection means are formed on opposite sides of the magnetic coupling surface.

Preferably, said connecting means are arranged along said magnetic coupling direction.

Preferably, said connecting means are each adapted to resist tension applied both parallel and perpendicular to said magnetic coupling direction.

Preferably, said connecting means comprises a stem extending substantially longitudinally away from the magnetic coupling face of said separable fastening components and a cover extending substantially perpendicular to said magnetic coupling face. direction extension.

Preferably, said first and said second separable fastening members comprise non-magnetic housings surrounding respective magnetic coupling surfaces, said coupling means being supported by said non-magnetic housings.

Preferably, said detachable fastening member is secured by inserting said stem through a garment or part of said garment and leaving said garment or part of said garment between said cover and said non-magnetic housing Attaches to clothing or parts of clothing.

Preferably, the fastener further comprises an annular magnet or an annular magnetic assembly and a housing on which the magnet or the magnetic assembly is held, the housing includes a plurality of sewing holes arranged in the In the area of the housing corresponding to the central hole of the ring magnet or ring magnetic assembly.

Description of drawings

The preferred embodiment of the magnetic fastener of the present invention will be further described in detail below by way of example and with reference to the accompanying drawings.

Fig. 1 is a longitudinal sectional view of a pair of corresponding magnetic fasteners of the first preferred embodiment of the present invention, wherein each connecting device is in a separated state;

Figures 1A and 1A-0 respectively show a cross-sectional view and a bottom view of a first fastening portion of a corresponding magnetic fastener;

Figures 1A-1 to 1A-7 show respective views of the constituent parts;

1B and 1B-0 respectively show a cross-sectional view and a bottom view of the second fastening portion of the corresponding magnetic fastener;

Figures 1B-1 to 1B-8 show respective views of the constituent parts;

Figure 1C shows the corresponding pair of magnetic fasteners of Figure 1 when subjected to a disengaging tension force that is neither parallel nor perpendicular to the characteristic magnetic axes of the pair of fasteners;

Figure 2 shows a longitudinal sectional view of a pair of corresponding magnetic fasteners in a second preferred embodiment of the present invention;

Figure 2A shows a longitudinal sectional view of the first fastening portion 210 of Figure 2;

Figures 2A-1 to 2A-8 and Figures 2B-1 to 2B-8 show respective views of the components of the corresponding magnetic fastener of the embodiment of Figure 2;

Fig. 3 shows a longitudinal sectional view of a pair of corresponding magnetic fasteners in a third preferred embodiment of the present invention;

Figure 3A shows a longitudinal section view of a corresponding magnetic fastener of Figure 3;

Figures 3A-1 and 3A-2 show bottom and cross-sectional views of portions 331 and 361, respectively;

3B-1 and 3B-2 show a cross-sectional view and a top view, respectively, of first and second housing portions 331 and 361 that may be used in a modification of the embodiment of FIG. 3;

Fig. 4 shows a longitudinal sectional view of a pair of corresponding magnetic fasteners in a fourth preferred embodiment of the present invention, wherein the connecting device is in a separated state;

Figure 4A shows a longitudinal sectional view of one of the corresponding magnetic fasteners of Figure 4;

Figures 5 and 5A show a fifth preferred embodiment of the invention and its variants;

6 and 6A show a sixth preferred embodiment of the present invention and its variants;

Figures 7 and 7A show a seventh preferred embodiment of the invention, while Figure 7B shows a variant thereof;

7A-1 and 7A-2 show cross-sectional views of the component housing of FIG. 7A;

7B-1 and 7B-2 show a top view and a cross-sectional view, respectively, of the housing of the fastener assembly of FIG. 7B;

Figure 8 shows an eighth preferred embodiment of the present invention, while Figures 8A-1 to 8A-11 show views of its constituent parts;

9 and 9A to 9C show a sectional view of a pair of magnetic fasteners and corresponding sectional views of fastening parts and their exploded views in a ninth preferred embodiment of the present invention;

Figures 9A-1 to 9A-8 and Figures 9B-1 to 9B-4 show views of the components;

Figure 10 shows a cross-sectional view of a pair of magnetic fasteners in a tenth preferred embodiment of the present invention, while Figures 10A-1 to 10A-7 and Figures 10B-1 to 10B-2 show respective views of the components ;and

Figures 10C and 10D show minor variations.

Detailed ways

Referring to Fig. 1, Figs. 1A-0 to 1A-7, 1B-0 to 1B-8 and Fig. 1C, a first preferred embodiment of the magnetic fastener 1 of the present invention is shown. The magnetic fastener 1 includes a first fastening part 10 and a second fastening part 20 . The first fastening part 10 includes a main housing 30 and a connecting device 40 . The main housing 30 includes a first housing part 31 and a second housing part 32 which are assembled to house the permanent magnet 50 . The connecting device 40 comprises a stem part 41 and a cover part 42, the stem part 41 is provided with a widened bottom end 43 formed in the main casing by leaving the widened part 43 inside the main housing and passing through the elongated neck of the rod part 41 Correspondingly shaped holes 33 are formed on the top surface of the first housing part 31 of the main housing 30 so that the connecting device 40 can be held by the main housing 30 . The transition from neck 44 to shoulder 43 may be gradual, eg flared, or abrupt as in this example.

The second housing part 32 includes a magnetically permeable first magnetic coupling surface 34 and an accommodating groove 35 for accommodating the permanent magnet 50 . The second housing part may be made, for example, of chrome or nickel plated stainless steel which is generally magnetic in nature. The first housing part 31 includes a top 38 having a downwardly depending and circumferentially extending skirt 39 . A flange 391 extending outward is formed on the lower end of the skirt portion 39 along the circumference. A plurality of apertures 36 are formed in the top 38 for engagement with the second housing part 32 by a plurality of upstanding fingers 37 distributed over the second housing part. Fingers 37 on the second housing part 32 extend from the coupling surface 34 and are distributed corresponding to the spatial positions of the holes 36 .

To assemble the first fastening part 10 , the block permanent magnet 50 is inserted into the receiving groove 35 so that one magnetic pole surface (eg “S” pole) of the permanent magnet 50 is adjacent to the magnetically permeable first magnetic coupling surface 34 . The second housing is then formed by first assembling the stem 41 with the first housing part 31 such that the elongated neck 44 protrudes above the top 38 while the shoulder 43 remains below the aperture 33 and the top 38. An upwardly protruding finger 37 on portion 32 is aligned with an aperture 36 on first housing portion 31 . By inserting the permanent magnet 50 and the stem 41 in place, the first housing part 31 and the second housing part 32 are then assembled together. The method of assembly may be, for example, pressing together the first housing part 31 and the second housing part 32 and then clamping the two housing parts together by bending the upwardly extending fingers 37 so that the permanent magnet 50 is tightly in the receiving groove 35 . After assembly, the bottom surface of the circular flange 391 is substantially at the same level as the first magnetic coupling surface 34 . A magnetic subassembly 50a comprising an annular permanent magnet and a magnetic base with a central protrusion may be used in place of magnet 50 .

The assembly of the first fastening portion 10 is completed by engaging the cover portion 42 with the top end of the neck portion 44 . In a preferred application, the neck 44 is typically received through a hole or hole formed in the surface of the garment to be attached before the cover 42 is secured to the subassembly consisting of the permanent magnet 50, main housing 30 and stem 41. buttonhole. Alternatively, the subassembly may be riveted to the garment by deforming, such as by stamping the top end of the neck 44, to form a widened top end of the neck 44 so that the fastening portion remains on the garment.

The first housing part 31 may also be made of a magnetic material, such as chrome- or nickel-plated stainless steel, so that the magnetic field emanating from the rear pole face of the permanent magnet block 50 ("N" pole in this example) can be diverted and Concentrate toward the flange 391, thereby strengthening the magnetic coupling with the second fastening part 20, of course, without loss of generality, the first housing part 31 and the second housing part 32 can also be made of non-magnetic materials, such as copper or brass production.

Referring to FIGS. 1B and 1B- 0 to 1B- 8 showing the second fastening part 20 , the second fastening part 20 includes a main housing 60 , a connecting device 70 and a permanent magnet 51 . The attachment means 70 comprises a stem portion 71 and a cover portion 72 which are substantially similar to the stem portion 41 and the cover portion 42 respectively in the first fastening portion 10 and which serve a similar purpose. The main housing 60 includes a first housing part 61 , a second housing part 62 and a third housing part 91 . The first housing part 61 and the second housing part 62 are connected together by corresponding pairs of apertures 66 and protruding fingers 67 located on the first housing part 61 and the second housing part 62 respectively. In general, the first housing portion 61 and the second housing portion 62 of the second fastening portion 20 are substantially similar to corresponding portions in the first fastening portion 10 and generally serve the same purpose. This subassembly comprising the first housing part 61 and the second housing part 62 is then mounted on the third housing part 91 . The third housing part 91 comprises a base 98 formed with an aperture 93 through which the elongated neck 74 of the connection device 70 can pass. Depending from the base 98 is formed an upwardly extending skirt 99 for enclosing the subassembly comprised of the first housing portion 61 and the second housing portion 62 . It should be noted that the skirt will act as a guard against lateral movement of the first and second magnetic coupling surfaces. An inwardly extending flange 991 is formed on the upper end of the skirt 99 .

When assembling the second fastening part 20, the permanent magnet 51 is placed in the receiving groove 65 so that the magnetic pole surface ("S") of the permanent magnet 51 and the permanent magnet 50 adjacent to the first magnetic coupling surface 34 interact with each other. The complementary magnetic pole face ("N" pole in this example) is placed adjacent to the second magnetic coupling face 64 for magnetic attraction.

Likewise, the shank 71 of the connection device 70 includes an elongated neck 74 and a shoulder 73 . The neck 74 is dimensioned to pass through the aperture 63 of the first housing part 61 , while the shoulder 73 is blocked by the aperture 63 . Before assembling the first housing part 61 and the second housing part 62 together, care should be taken to insert the rod part 71 of the connecting device 70 through the hole 63 so that the permanent magnet 51 remains on the second magnetic coupling surface 64 and between the shoulders 73 . The neck 74 is then protruded through the holes 63 and 93 so that the half subassembly consisting of the first housing part 61, the second housing part 62, the stem part 71 and the permanent magnet 51 is installed in the third housing part On the base 98 of 91. The subassembly half is mounted to the third housing part 91 with the second magnetic coupling face 64 facing the aperture defined by the skirt 99 .

The first housing part 61 and the second housing part 62 are also made of a magnetic material such as chrome- or nickel-plated stainless steel. Through the magnetically permeable housing, magnetic flux is permeable to the surface 64 for magnetic coupling with the corresponding fastener 10 . In addition, the magnetic flux emitted from the rear pole surface of the permanent magnet 51 (ie, the pole surface facing away from the second magnetic coupling surface 64) is turned along the circumferential edge 69 and concentrated on the first housing part 61, so that the first housing part 61 essentially forms a magnetic basin, thereby increasing the magnetic domain strength and enhancing the magnetic coupling between the two fastening parts 10,20. In addition, it should be noted that the circumferential and inwardly extending flange 991 is higher than the second magnetic coupling surface 64 and is high enough to surround the circumferential flange 391 of the first fastening portion 10 so as to form the first and second A guard when fastening parts are joined together.

Turning now to the operation of the fastener 1 and referring again to FIG. 1 , since the permanent magnets 50 and 51 are arranged such that their opposite polarity pole faces are adjacent to the corresponding first magnetic coupling face 34 and second magnetic coupling face 64, the corresponding first The fastening portion 10 and the second fastening portion 20 will be attracted to each other by the action of opposite magnetic poles between the first magnetic coupling surface 34 and the second magnetic coupling surface 64 . Moreover, because the additional supplementary magnetic field is substantially concentrated along the substantially correspondingly shaped circumferential flange 391 and the circumferential edge 69, respectively, the corresponding fastening portions will be coupled by additional adhesive forces and substantially self-align without requiring external force to cause the two Align with the corresponding fastening parts.

Specifically, when the fastening parts 10 and 20 approach each other, the permanent magnet 50 and the permanent magnet 51 will be magnetically coupled in the axial direction YY' substantially parallel to the longitudinal direction of the neck of the corresponding fastening part 10, 20 mutual attraction. In addition, and as shown in more detail in FIG. 1, for example, in the case of being applied to jeans or other clothing, when the pair of corresponding magnetic fasteners 10, 20 are subjected to lateral shearing or peeling off along the XX' direction, When force is applied, as shown in FIG. 1 , the lateral tension will cause the fastening portion to move relative to the first magnetic coupling surface 34 and the second magnetic coupling surface 64, so that the circumferential flange 391 moves and is positioned on the circumferential convex surface. Between the rim 991 and the base 98 of the housing part 91. At the same time, the pair of magnetic fasteners can still resist the axial or longitudinal disengagement tension along the YY' direction, because the circumferential flanges 991 and 391 will be cooperatively formed to resist the longitudinal force of the circumferential flange 391. Locking mechanism for release movement, thereby additionally resisting release in the axial direction when subjected to lateral tension.

Now, referring to Fig. 2, Fig. 2A, 2A-1 to 2A-8 and Fig. 2B-1 to 2B-8 showing a second preferred embodiment of the magnetic fastener 2 of the present invention, the magnetic fastener 2 comprises a first buckle The fastening part 210 and the second fastening part 220. The first fastening part 210 includes a main housing 230 and a connecting device 240 . The main housing 230 includes a first housing part 231 and a second housing part 232 which are assembled together for accommodating the permanent magnet 250 . The first housing part 231 and the second housing part 232 are substantially the same as the corresponding parts (ie, the housing parts 31 and 32 ) in the first preferred embodiment, respectively.

The connection device 240 includes a stem portion 241 and a base portion 243 . The stem portion 241 includes a pair of upwardly extending arms 244 such that by leaving the base portion 243 in the main housing and the elongated arms 244 of the stem portion 241 protruding through the top surface of the first housing portion 231 formed in the main housing 230 The hole 233 corresponds to the shape on the top, and the connecting device 240 can be held by the main housing 230 .

Referring to the second fastening part 220 shown in FIGS. 2B-1 to 2B-8 , the fastening part 220 includes a main housing 260 , a connecting device 270 and a permanent magnet 251 . The attachment means 270 includes a stem portion 274 and a base portion 273 which are substantially the same as the base portion 243 and the stem portion 244 of the first fastening portion 210 respectively and serve a similar purpose. The main housing 260 includes a first housing portion 261 , a second housing portion 262 and a third housing portion 291 and is substantially identical to the corresponding portions (ie 60 ) in the first preferred embodiment.

It will be noted from the above preferred embodiments that the magnetic fastener comprises a first separable fastening component (10, 210) and a second separable fastening component (20, 220). The first separable fastening component includes a first magnetic coupling surface (34, 234), and the second separable fastening component includes a second magnetic coupling surface (64, 264), the magnetic coupling surfaces are along the magnetic coupling axial direction Y -Y' attract each other. Additionally, the magnetic fastener includes guard means (99, 299) adapted to resist relative lateral movement between the first and second magnetic coupling surfaces when the first and second fastening components are magnetically coupled. In addition, the first and second fastening components also include cooperating locking means (391, 991; 2391, 2991) adapted to resist a force applied along a direction perpendicular to the magnetic coupling axis when the first and second fastening components are magnetically coupled. Applied lateral uncoupling tension X' and release generally along the axial magnetic coupling direction YY'.

The benefits are particularly pronounced when the magnetic fastener is used on jeans or other garments that need to resist unraveling tension in more than one direction. For example, when the pair of coupling and fastening parts is subjected to disengagement tension along the waistline and radial expansion of the waist, it is equivalent to the tension along the lateral direction X-X' and the magnetic coupling axis Y-Y' respectively. Furthermore, it should be noted that the attachment means for attaching the first and second fastening components to the garment or part of the garment are located substantially on opposite sides of the magnetic coupling surface.

Referring to Fig. 3, 3A-1 to 3A-2 and Fig. 3B to 3B-2, a third preferred embodiment of the magnetic fastener 3 of the present invention is shown. The magnetic fastener 3 includes a first fastening portion 310 and a second fastening portion 320 that are substantially identical. Each of the first fastening portion 310 and the second fastening portion 320 is substantially the same as the first fastening portion 10 in the first preferred embodiment, except for the first housing portion 31 of the main housing 30 . The first housing part 310, 320 of the preferred embodiment includes a top 338 formed with a hole 333 through which the neck of the attachment device passes. Similar to the first housing part 31 of the first preferred embodiment, depending downwardly from the top 338 is a circumferential skirt which, when mated with the second housing part 332, will define a receiving groove for receiving the permanent magnet. In contrast to the outwardly extending circumferential flange 391 of the first housing part 31 , the downward end of the skirt 339 is formed with a latch 3391 extending downward beyond the depth of the skirt 339 . The locking device 3391 is in the shape of helical teeth, so that when the first fastening part 310 and the second fastening part are engaged together such that the teeth are arranged substantially radially intersecting, all the helical teeth will resist the movement of the two fastening parts along the first and lateral movement of the second magnetic coupling surface. It should be noted that the free lower end of the skirt 339 is not symmetrical about the magnetic coupling axis. The first housing parts 331 and 361 of the first and second clasp parts are made of magnetic material, while the second housing part 332 is made of copper, brass or other non-magnetic material.

Referring to Fig. 4 and Fig. 4A, a fourth embodiment of the magnetic fastener 4 of the present invention is shown. The magnetic fastener 4 includes a first fastening portion 410 and a second fastening portion 420 that are substantially identical. As in the previous embodiments, each fastening part 410, 420 includes a permanent magnet, a main housing and a connecting device. The main housing of this preferred embodiment is basically the same as that of the third preferred embodiment, and the connecting device is basically the same as the connecting device 271 of the second preferred embodiment.

Referring to FIG. 5 and FIG. 5A , the fifth preferred embodiment and its variants of the present invention are shown. The magnetic fastener 5 includes a first fastening portion 510 and a second fastening portion 520 . The first fastening portion 510 includes a main housing that is substantially identical to the main housing 30 of the first fastening portion 10 of the first preferred embodiment, except that the outwardly extending flange 391 is absent. The connection means of the variant of FIG. 5 are substantially the same as those of the embodiment of FIG. 1 , while the connection means of the variant of FIG. 5A are substantially the same as those of the second preferred embodiment. The second fastening portion 520 comprises a main housing which is substantially the same as the main housing 60 of the first preferred embodiment, except that the free ends of said housing parts are not bent inwardly to form a flange 991 .

Referring to Figures 6 and 6A, a sixth preferred embodiment of the magnetic fastener 6 of the present invention and its variants are shown. The magnetic fastener 6 includes a first fastening portion 610 and a second fastening portion 620 . Each fastening portion 610, 620 includes a main housing and connection means. The connection means may be the same as that of Figures 5 and 5A. The main housing is substantially the same as that of the second fastening portion 20 of the first preferred embodiment, except that the third housing portion 91 is absent.

7 and 7A-1 to 7A-2 show a seventh preferred embodiment of the present invention and its variants. Same as other preferred embodiments, the magnetic fastener 7 includes a first fastening part and a second fastening part, and each fastening part includes a main housing 730 and a connecting device 740 . The main housing 730 includes a first housing part 731 and a second housing part 732 which together define a receiving slot for receiving a permanent magnet. The first housing part 731 includes a magnetically permeable surface 734 such that the magnetic flux of the pole face of the permanent magnet next to the magnetic coupling face 734 can pass through the surface for magnetic attraction. The second housing part 732 includes a circumferential wall made of a magnetic material so that the magnetic field originating from the rear pole face of the permanent magnet (ie, the pole face not immediately adjacent to the magnetic coupling face 734) can be diverted and passed along the second housing part. The free ends of the circumferential wall of 732 are concentrated, thereby enhancing the magnetic attraction strength. The attachment means comprises a plurality of ear-shaped hollow frame elements so that the fastening portions 710, 720 can be sewn to corresponding portions of the garment. The variant shown in Figures 7B and 7B-1 to 7B-2 is substantially the same as that of Figure 7, except that the connection means 7401 are formed on the back of the main housing.

Referring to Figure 8 and Figures 8A-1 to 8A-11, there is shown an eighth preferred embodiment of the present invention and corresponding variants thereof. The magnetic fastener 8 includes a first fastening portion 810 and a second fastening portion 820 . One of the fastening parts includes the main housing, the ring magnet and the connecting means. The main housing of the first clasp part comprises a first housing part 831 and a second housing part 832 which together define a receiving slot for receiving a magnet 850 . The first housing portion 831 is provided with a groove that substantially conforms to the contour and shape of the ring magnet. The subassembly comprising the first housing part 831 , the ring magnet 850 and the second housing part 852 is then joined together, eg by riveting. The first housing part, the second housing part and the rivet 840 are preferably made of magnetic material so that the magnetic flux originating from the permanent magnet 850 can penetrate the magnetic coupling surface 851 and at the same time allow the magnetic flux from the permanent magnet 850 to The magnetic flux of the rear pole face is diverted and concentrated at the end of the rivet 840 for enhanced magnetic coupling. A plurality of sewing holes 870 are formed in the periphery of the second housing portion. The second fastening portion 820 includes a main housing 861 of magnetic material. Additional sewn holes 880 may be formed on the back of the main housing portion 861, as shown in Figures 8A-10, for a more secure and secure fit to a garment.

Referring to Figure 9, Figures 9A-9C, 9A-1 to 9A-8 and 9B-1 to 9B-4, a ninth preferred embodiment of the magnetic fastener 9 and variations thereof are shown. The magnetic fastener 9 includes a first fastening portion 910 and a second fastening portion 920 . The first fastening part 910 includes a main housing, a fastening structure and an annular magnetic plate. The main housing includes a first housing part 931 and a second housing part 932 which are fitted together to form a receiving groove 935 for receiving the ring magnet. The first housing portion 931 is made of a magnetically permeable material, such as plastic, ABS, PVC, or rubber, and is formed to conform to the shape of the ring magnet or ring magnetic subassembly. The first housing part 931 and the second housing part 932 together with the ring magnet form a subassembly of the magnetic fastener. An annular back cover 941, 972 may be mounted to the first housing portion 931, 961 to make the fastening portion waterproof and rust-proof. The back cover is preferably made of a material that is compatible with the first housing portion 931 so as to be fused, welded or glued together.

The second housing part is made of a magnetic material so that magnetic flux originating from the permanent magnet plate 950 can penetrate the magnetic coupling face while magnetic flux originating from the other face of the permanent magnet can be diverted and emerge on the magnetic coupling face. A plurality of sewn holes are formed in the first housing portion for attachment to the compliant surface in a conventional manner. The first housing part of the first fastening part 910 includes a protrusion 939, while the first housing part 961 of the second fastening part 920 includes a protrusion 999, so that the corresponding parts form a cooperating receiving mechanism to prevent magnetic coupling surfaces. relative sliding motion. The first housing portion 961 and the second housing portion 962 of the second fastening portion 920 are substantially identical to corresponding portions of the first fastening portion. In addition, the main housing part 931 and the back cover 942 of the first fastening part are also provided with a plurality of sewing holes, so as to increase the stability and tightness of the fastening part on the opposite surface.

Referring to Figures 10, 10A-1 to 10A-7, 10B-1 to 10B-2, 10C and 10D, a tenth preferred embodiment of the magnetic fastener 10 and variations thereof are shown. The magnetic fastener 10 includes a first fastening portion 1010 and a second fastening portion 1020 . The first fastening part 1010 includes a main housing 1031 , a fastening part 1042 and an annular permanent magnet 1050 . The main housing comprises a first housing part 1031 and a second housing part 1042 which, when assembled together, form a magnet receiving slot for receiving a ring magnet. The first housing part 1031 is made of magnetically permeable material, such as copper, stainless steel, plastic, ABS, PVC or rubber, and forms a compartment conforming to the shape of the ring magnet 1050 or the ring magnet assembly. The first housing portion 1031 , the second housing portion 1042 and the ring magnet 1050 fit together to form the magnetic subassembly of the magnetic fastener. The first housing part 1031 is provided with an annular back cover and is sealed with a seal so that the fastener is substantially waterproof and rustproof. The back cover may be secured to the first housing portion 1031 by a plurality of upstanding fingers 1037 . The back cover 1042 is preferably made of a material that is compatible with the first housing portion 1031 such that it can be fused, welded or joined together.

The magnetic coupling surface of the housing part 1061 of the second fastening part 1020 is made of a magnetically permeable material, so that the magnetic flux originating from one surface of the permanent magnetic plate 1050 can penetrate the magnetic coupling surface, and at the same time the housing part includes a pot-shaped main body. The housing part 1061, so that the magnetic flux originating from the other back side 1062 of the permanent magnet can be diverted toward the magnetic coupling side through the back cover, thereby enhancing the magnetic coupling strength. Likewise, back cover 1062 may be secured to the main housing portion by a plurality of upstanding fingers 1067 . A plurality of sewn holes 1044 are provided in the first housing part.

The first fastening portion 1010 includes a protruding portion 1039, while the second fastening portion 1022 includes a correspondingly shaped recessed portion 1099, thereby forming a cooperating coupling mechanism that reduces relative slippage between the coupling surfaces. The first fastening portion 1010 and the second fastening portion 1020 are substantially identical except for the portions that make up the cooperating coupling mechanism (ie, 1039 and 1099 ). A back panel 1042 with a plurality of sewn holes 1044 may form part of the first fastening portion to increase the fit and security of the fastening portion on soft surfaces such as garments. Figures 10C and 10D show a variation of this preferred embodiment in which the second fastening portion is formed of a magnetic material 1042 into a simple basin shape 1020a to simplify the overall construction. As shown in FIG. 10D , the second fastening portion can be simply replaced by a magnetic magnetic chassis 1042 to further simplify the overall structure.

Although the present invention has been explained with reference to the above-described preferred embodiments, it should be understood that the above-described embodiments are merely illustrative to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. For example, the first and second housing parts may be formed by having the third housing part (or guard), ie part 91, 291, include a narrow section at an axial level above the magnetic coupling face to which the third housing part is connected. Cooperative locking means between the second fastening parts. The narrow portion is adapted so that the corresponding magnetic coupling surface can axially pass through the narrow hole of the third housing part, while the narrow hole will prevent the corresponding magnetic coupling surface from moving along the common magnetic field with the corresponding magnetic block when subjected to lateral tension. Axes pass in substantially parallel directions. In particular, the scope, metre, and spirit of the invention are intended to include the basic principles of the invention as indicated or explained by the above-described embodiments. More specifically, changes or modifications obvious to those skilled in the art and improvements made on the basis of the present invention should be considered to fall within the scope and boundaries of the present invention.

Furthermore, although the invention has been explained with reference to a magnetic fastener having a magnet in each fastening portion, it should be understood that the invention, with or without modification, is applicable to other variations, including a pair having only a single magnet. Fasteners without loss of universality.

Claims (21)

1. A magnetic fastener comprising a first detachable fastening component and a second detachable fastening component, the first detachable fastening component and the second detachable fastening component each comprising a first magnetic coupling surface and a second magnetic coupling surface, the first magnetic coupling surface and the second magnetic coupling surface are magnetically attracted to each other along the axial direction of the magnetic coupling, and the magnetic fastener includes a A guard on one of the two separable fastening components adapted to prevent said first magnetic coupling surface from said The relative lateral movement between the second magnetic coupling surface, the first separable fastening component and the second separable fastening component further comprise The fastening components are simultaneously magnetically coupled and subject to lateral tension perpendicular to the axial direction of the magnetic coupling, preventing the separation of the first and second separable fastening components along the axial direction of the magnetic coupling The cooperative locking device, the cooperative locking device includes that the first separable fastening is allowed under the condition that the first magnetic coupling surface and the second magnetic coupling surface are perpendicular to the axial direction of the magnetic coupling means for axially separating the component and the second separable fastening component along the axial direction of said magnetic coupling, and means for resisting skewed separation of said first and second separable fastening components. 2. The magnetic fastener according to claim 1, wherein the protective device comprises a peripheral wall, and the peripheral wall contacts adjacent to the first magnetic coupling surface and the second magnetic coupling surface so that the The first separable fastening part and the second separable fastening part surround the first magnetic coupling surface and the second magnetic coupling surface when they are magnetically coupled, and the cooperative locking device includes a detachable The guard of the fastening part has a radially inwardly extending circumferential flange and a circumferential flange extending radially outwardly from the other separable fastening part corresponding to the circumferential flange, the two circumferential flanges When the first magnetic coupling surface and the second magnetic coupling surface are in coupled contact, they are axially spaced apart. 3. The magnetic fastener of claim 1, wherein said guard includes a peripheral wall extending along said magnetic coupling axial direction and extending when said first separable fastening member and said A second separable fastening component is magnetically coupled and surrounds said first magnetic coupling surface and said second magnetic coupling surface when in adjacent contact, said cooperating locking means comprising a radial direction from a guard of one of the separable fastening components. An inwardly extending circumferential flange and a circumferential flange extending radially outward from the other separable fastening component corresponding to the circumferential flange, the radial extension of the two circumferential flanges being such that their respective The axial trajectories are separated from each other, so that the first separable fastening part and the second separable fastening part can be separated without hindrance along the magnetic coupling axial direction, and each of the first magnetic coupling surface and the second magnetic coupling surface The magnetic coupling surfaces are all surrounded by a magnetic housing made of magnetic material, which extends from the back side of the magnetic coupling surface towards the front side of the magnetic coupling surface, so that the magnetic poles of the magnetic housings are aligned with the corresponding The surrounding magnetic coupling surfaces have opposite magnetic poles, and the corresponding magnetic housings of the first and second separable fastening components are shaped and dimensioned such that when the first magnetic coupling surface and the second When the magnetic coupling surfaces are in magnetic coupling contact, the corresponding magnetic housings are also in magnetic coupling contact. 4. The magnetic fastener according to claim 3, wherein the first separable fastening component comprises a first permanent magnet and the first magnetic coupling surface formed on the first permanent magnet, The peripheral wall is included on the first separable fastening member, and the aperture defined by the peripheral wall is higher than the surface area of the first magnetic coupling surface, and the outwardly extending peripheral flange is magnetically controlled. The magnetic pole is made of material and has the first magnetic coupling surface. 5. The magnetic fastener of claim 3, wherein each of said first separable fastening component and said second separable fastening component includes a non-magnetic housing respectively Surrounding the first magnetic coupling surface and the second magnetic coupling surface, the non-magnetic casing is located between the magnetic casing and the first and second magnetic coupling surfaces and is used to connect the magnetic coupling surfaces fixed in place. 6. The magnetic fastener of claim 2, wherein said first separable fastening component comprises a first permanent magnet having a magnetic axis parallel to said first magnetic coupling axis direction, the peripheral wall extends away from the first magnetic coupling surface along the magnetic coupling axial direction, and surrounds the first magnetic coupling surface, and a ring portion is arranged between the first magnetic coupling surface and The middle of the peripheral wall forms the radially inwardly extending circumferential flange, and the radially inwardly extending circumferential flange includes radially extending from the magnetic housing surrounding the second magnetic coupling surface. Outwardly extending circumferential protrusions. 7. The magnetic fastener of claim 6, wherein the annular portion of the peripheral wall defines a narrow aperture that is higher than the first magnetic coupling surface. 8. The magnetic fastener of claim 6, wherein the annular portion is non-magnetic. 9. The magnetic fastener as claimed in claim 2, wherein the protective device includes a magnetic coupling axis for guiding between the first magnetic coupling surface and the second magnetic coupling surface along the magnetic coupling axis. directional coupling device. 10. The magnetic fastener of claim 1, wherein each of said first and second separable fastening components includes a Attachment means for attaching a second separable fastening element to the garment or portion of the garment, said attachment means for said first and second separable fastening elements being located on opposite sides of a magnetic coupling surface. 11. The magnetic fastener of claim 1, wherein the first and second separable fastening components comprise a first permanent magnet and a second permanent magnet, respectively, and each of the second Both a permanent magnet and said second permanent magnet are surrounded by a non-magnetic housing. 12. The magnetic fastener according to claim 11, wherein the attachment means for attaching the detachable fastening member to the garment or part of the garment is formed on the non-magnetic housing for the Said connection means of said first separable fastening member and said second separable fastening member are formed on opposite sides of said magnetic coupling surface. 13. The magnetic fastener according to claim 10, wherein the connecting device is arranged along the axial direction of the magnetic coupling. 14. The magnetic fastener of claim 10, wherein both of said connecting means are adapted to resist tension applied parallel to and perpendicular to said axial direction of said magnetic coupling. 15. The magnetic fastener according to claim 10, wherein said connecting means comprises a stem portion and a cover portion, said stem portion extending longitudinally in a direction away from the magnetic coupling surface of said separable fastening components, And the cover portion extends in a direction perpendicular to the axial direction of the magnetic coupling. 16. The magnetic fastener of claim 10, wherein said first separable fastening component and said second separable fastening component comprise non-magnetic housings surrounding respective magnetic coupling surfaces, so that The connecting device is supported by the non-magnetic housing. 17. The magnetic fastener as claimed in claim 15, wherein said first detachable fastening member is formed by inserting said stem through a garment or part of the garment and leaving said garment or part of said garment Attached to the garment or a portion of the garment between the cover and a non-magnetic housing. 18. The magnetic fastener of claim 1, further comprising an annular magnet or an annular magnetic assembly and a housing on which the magnet or the magnetic assembly is retained, the housing comprising A plurality of sewn holes are arranged in a region of the housing corresponding to a central hole of the ring magnet or ring magnet assembly. 19. A magnetic fastener, comprising a first detachable fastening component and a second detachable fastening component, the first detachable fastening component and the second detachable fastening component respectively comprising a first magnetic coupling surface and a The second magnetic coupling surface, the first and second magnetic coupling surfaces are magnetically attracted to each other along the axial direction of the magnetic coupling, and the magnetic fastener includes guard means against relative lateral movement between said first magnetically coupled surface and said second magnetically coupled surface when the fastening members are magnetically coupled, said first and second separable fastening members includes a device adapted to prevent said first detachable fastening component from being magnetically coupled when said first and second detachable fastening components are simultaneously in magnetic coupling and subjected to a lateral tension applied perpendicular to the axial direction of said magnetic coupling. A fastening component and a second separable fastening component are separated along the axial direction of the magnetic coupling, and the protective device includes a peripheral wall, and the peripheral wall is between the first magnetic coupling surface and the second magnetic coupling surface. The magnetic coupling surfaces surround the first magnetic coupling surface and the second magnetic coupling surface when the first separable fastening member and the second separable fastening member are magnetically coupled in adjacent contact, wherein the A peripheral wall is included as part of one of the separable fastening components, the peripheral wall including a narrow portion raised above the magnetic coupling face of the one of the separable fastening components , the narrow portion is adapted to allow the passage of the magnetic coupling surface on the corresponding detachable fastening component along the magnetic coupling axial direction, the raised narrow portion of the peripheral wall is in the corresponding detachable fastening Said magnetically coupled surfaces of said fastening components resist passage of said magnetically coupled surfaces of said corresponding separable fastening components when decoupled along said magnetically coupled axial direction while being subjected to laterally applied tension. 20. The magnetic fastener of claim 19, wherein said first and second separable fastening components comprise first and second permanent magnets, respectively, said first The permanent magnet and the second permanent magnet respectively include the first magnetic coupling surface and the second magnetic coupling surface with opposite magnetic polarities, each of the first permanent magnet and the second permanent magnet is accommodated in a non-magnetic housing . 21. The magnetic fastener of claim 20, wherein said non-magnetic housing in which said second permanent magnet is housed includes a flared base adapted to resist longitudinal disengagement between said first separable fastening component and said second separable fastening component when subjected to laterally applied tension.

Images