Magnetic Fastening Buckle

The present invention relates to a magnetic fastening buckle that utilizes a magnetic attraction force between a male-side and a female-side magnet to achieve the purpose of engaging a male and a female buckle member with each other; and more particularly, to a magnetic fastening buckle having a male and a female buckle member that can maintain in an assembled state even when they are staggered from each other.

Following the constant progress in the industrial technologies, a variety of specially designed and sophisticated buckles with improved structure and functions are also developed to be widely applied to clothes, home decorative objects, sports goods, safety gears, handbags, etc.

is an exploded perspective view of a conventional magnetic fastening bucklethat is available in the current market and featured by being able to be quickly assembled and disassembled. As shown in, the conventional magnetic fastening buckleincludes a male buckle memberand a female buckle member. The male buckle memberis provided with two spaced retaining membersand includes a male-side magnetembedded therein. The female buckle memberis provided with two spaced retaining groovesand two spaced removal openings, and includes a female-side magnetembedded therein capable of magnetically attracting the male-side magnet. As shown, each of the retaining membersincludes an engagement blockdownward extended in a z-axis direction and a retaining protrusionextended from the engagement blockin an x-axis direction; and each of the retaining groovesincludes an engaging space, which is extended in a y-axis direction and recessed in a z-axis direction, and a retaining space, which is extended from the engaging spaceand recessed in the x-axis direction. The removal openinghas an opening facing in a direction parallel with the y-axis direction and formed on one end of the retaining groove, such that both the engaging spaceand the retaining spaceare communicable with the removal opening.

Please refer to. A magnetic attraction force between the male-side magnetand the female-side magnetcan move the male buckle membertoward the female buckle member, such that the retaining protrusionsof the retaining membersare moved from the engaging spaceof the engagement groovesinto the retaining spaceof the retaining grooves, and the retaining protrusionsare correspondingly received in the retaining space. In this manner, the male buckle memberand the female buckle memberare assembled to each other.

Please refer to. When an external forcein parallel with the y-axis direction is applied to the male buckle memberand the female buckle member, the male buckle memberwill move in the y-axis direction relative to the female buckle member, and the retaining protrusionsof the retaining membersare also moved toward the removal opening. However, in the case the external forcehas a magnitude smaller than the magnetic attraction force between the male-side and the female-side magnet,, the magnetic attraction force between the two magnets,would limit the retaining protrusionsfrom moving, so that the retaining protrusionsremain received in the retaining spacesof the retaining grooves, and the male and the female buckle member,remain in the assembled state. On the other hand, in the case the external forcehas a magnitude larger than the magnetic attraction force between the male-side and the female-side magnet,, the retaining protrusionscould be moved out of the removal openingto separate from the retaining spaceof the retaining grooves, allowing the male buckle memberto separate from the female buckle member. In some cases, the magnetic attraction force between the male-side magnetand the female-side magnetmight be able to prevent the male buckle memberfrom completely separating from the female buckle member, a user still has to watch out whether the male and the female buckle member,would separate from each other under the external force, rendering the conventional magnetic fastening buckleinconvenient and unsafe for use.

A primary object of the present invention is to provide a magnetic fastening buckle with an improved structure, which includes a male buckle member and a female buckle member that can be selectively unlocked from or locked to each other while they are in an assembled state. When the male and the female buckle member are in the unlocked state, the male buckle member can be separated from the female buckle member; on the other hand, when the male and the female buckle member are in the locked state, the male buckle member can remain engaged with the female buckle member and is not easily separable from the female buckle member. With these arrangements, once the male buckle member is assembled to the female buckle member, it would not be separated from the female buckle member owing to an external force to thereby give the magnetic fastening buckle an enhanced safety in use.

To achieve the above and other objects, the magnetic fastening buckle according to the present invention includes a male buckle member, a female buckle member, and an anti-separation member. The male buckle member includes a male main body, a male-side magnet attached to the male main body, and a male-side retaining portion formed on the male main body. The female buckle member includes a female main body, a female-side magnet attached to the female main body, and a female-side retaining portion formed on the female main body. The male-side magnet is magnetically attracted by the female-side magnet, bringing the male main body to move in a z-axis direction toward the female main body, such that the male-side retaining portion is retained to the female-side retaining portion. The female-side retaining portion includes a rear removal opening located on a rear side of the female main body in a y-axis direction.

The anti-separation member includes a connection section and a front stop section. The connection section is connected to the male main body and movable in the x-axis direction, such that the anti-separation member can be selectively moved in the x-axis direction to one of an unlocking position and a locking position. The front stop section is located outside a front side of the female main body in the y-axis direction, such that the front stop section and a rear removal opening is located at the front and the rear side, respectively, of the female main body.

When the anti-separation member is located at the unlocking position, the front stop section is staggered from the female main body without overlapping any part of the female main body, such that the male main body is movable in the y-axis direction to pass through the rear removal opening and be separated from the female main body.

When the anti-separation member is being moved in the x-axis direction to the locking position, the anti-separation member can be moved across the male main body to the female main body and the front stop section can overlap any part of the female main body in the y-axis direction; and when the male main body is moved rearward in the y-axis direction toward the rear removal opening, the front stop section would get in contact with the front side of the female main body to prevent the male main body from separating from the female main body.

In a preferred embodiment, the male main body includes a male-side contact surface and the male-side retaining portion formed on the male main body is downward protruded from the male-side contact surface. The male-side contact surface and the male-side retaining portion are contactable with the female main body, and the front stop section of the anti-separation member is downward extended beyond the male-side contact surface, such that the connection section and the front stop section of the anti-separation member are located at two opposite sides of the male-side contact surface.

In another preferred embodiment, the female-side retaining portion further includes a front removal opening located in front of and spaced from the rear removal opening, and the front removal opening is located at the front side of the female main body in the y-axis direction. The anti-separation member further includes a rear stop section located outside the rear side of the female main body in the y-axis direction, such that the front stop section and the rear stop section are located at two opposite sides of the connection section of the anti-separation member.

When the anti-separation member is located at the locking position, the rear stop section can overlap any part of the female main body in the y-axis direction. When the male main body is moved in the y-axis direction toward the front removal opening, the rear stop section would get in contact with the rear side of the female main body to prevent the male main body from separating from the female main body.

The male main body includes a male-side contact surface contactable with the female main body and the male-side retaining portion formed on the male main body is downward protruded from the male-side contact surface; and both the front stop section and the rear stop section of the anti-separation member are downward extended beyond the male-side contact surface to be located close to the female main body. When the anti-separation member is located at the unlocking position, the front stop section is located in front of the front removal opening and the rear stop section is located behind the rear removal opening.

In the above preferred embodiment, the male-side retaining portion includes an engagement portion downward extended in the z-axis direction and a retaining protrusion protruded in the x-axis direction; the female-side retaining portion includes an engaging space downward recessed in the z-axis direction and a retaining space extended in the x-axis direction. The engagement portion is correspondingly received in the engaging space and communicable with the front removal opening and the rear removal opening at the same time, and the retaining protrusion being correspondingly received in the retaining space.

When the anti-separation member is located at the unlocking position, the male main body is movable in the y-axis direction to separate from the female main body while one of the front stop section and the rear stop section is moved into the engaging space.

The male-side retaining portion further includes an anti-separation block correspondingly extended from the engagement portion, and the female-side retaining portion further includes an anti-separation space correspondingly communicable with the engaging space. The anti-separation block is extendable into the anti-separation space, and the anti-separation space respectively include an anti-separation surface for guiding the anti-separation block to move into the engaging space. A magnetic attraction force between the male-side magnet and the female-side magnet enables the anti-separation surface to drive the anti-separation block to move back into the anti-separation space, such that the anti-separation surface can limit the anti-separation block to remain engaged with the anti-separation space.

In the above two preferred embodiments, the female main body includes a female-side coupling section, on which the female-side retaining portion is formed, and a female-side woven strap connection section to which a woven strap is connectable. The anti-separation member further includes a front reinforcing stop section, and the front stop section and the front reinforcing stop section are located on the same side of the connection section. When the anti-separation member is moved to the locking position, the front stop section is located at a front side of the female-side coupling section in the y-axis direction, while the front reinforcing stop section is located at a front side of the female-side woven strap connection section in the y-axis direction.

The female-side woven strap connection section is protruded to form a limiting block, the limiting block has a height position higher than that of the female-side retaining portion, and the anti-separation member further includes a front limiting section connected to the front reinforcing stop section. When the anti-separation member is moved to the locking position, the front limiting section is moved to a position below the limiting block; and when the front limiting section gets into contact with a lower side of the limiting block, the male main body is prevented from separating from the female main body in the z-axis direction.

The magnetic fastening buckle further includes a first locating part and two second locating parts provided between the male main body and the connection section of the anti-separation member. When the anti-separation member is moved relative to the male main body, the first locating part can be engaged with one of the two second locating parts, such that the anti-separation member is held to one of the locking position and the unlocking position.

The magnetic fastening buckle further includes a limiting mechanism provided between the male main body and the connection section of the anti-separation member for limiting the anti-separation member to move relative to the male buckle member only in the x-axis direction. The limiting mechanism include a limiting recess and a limiting rib for correspondingly engaging with the limiting recess. Two opposite ends of the limiting recess being defined a closed end and an open end. The closed end are in contact with the limiting rib when the anti-separation member is located at the unlocking position, and the open end allow the limiting rib to pass therethrough when the anti-separation member is located at the locking position.

The present invention is characterized in that, when the male-side magnet is attracted by the female-side magnet, the male buckle member is caused to move in the z-axis direction toward the female buckle member, such that the male-side retaining portion of the male buckle member is retained to the female-side retaining portion of the female buckle member and the front stop section of the anti-separation member is located outside the front side of the female main body in the y-axis direction, such that the front stop section and the rear removal opening is located at the front and the rear side, respectively, of the female mainbody; and the anti-separation member is movable in the x-axis direction relative to a surface of the male main body, so that the anti-separation member can be moved to the unlocking position and the front stop section thereof does not overlap any part of the female main body, allowing the male main body to be moved rearward in the y-axis direction to pass through a rear removal opening and be separated from the female main body; or the anti-separation member is movable in the x-axis direction to the locking position, so that the anti-separation member can be moved across the male buckle member to the female buckle member and cover any part of the female main body. In the latter case, when the male buckle member and the female buckle member are subjected to an external force and the male-side retaining portion is moved in the y-axis direction toward the rear removal opening, the front stop section can get in contact with the front side of the female main body to prevent the male main body from separating from the female main body, such that the male-side retaining portion can remain retained to the female-side retaining portion and the male and the female buckle member are not easily separated from each other.

The present invention will now be described with some preferred embodiments thereof and by referring to the accompanying drawings. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals.

For the purpose of clearly depicting the structure of a magnetic fastening buckleaccording to the present invention, three coordinate axes, namely, x-axis, y-axis, and z-axis, are shown in the accompanying drawings. Wherein, two opposite ends of the x-axis indicate a left and a right side when viewing in front of the drawings; two opposite ends of the y-axis indicate a front and a rear side when viewing in front of the drawings; and two opposite ends of the z-axis indicate an upper and a lower side when viewing in front of the drawings. Further, the directional terms “front”, “rear”, “left”, “right”, “upper”, and “lower” used in the present specification corresponding to the directions indicated by the x-axis, the y-axis, and the z-axis.

Please refer to. The magnetic fastening buckleaccording to the present invention is used with an object, which includes a first woven strapand a second woven strapspaced from the first woven strap. In, the objectis configured as a helmetfor wearing on head; and the first and the second woven straps,are provided at two lateral sides of the helmet. Alternatively, as shown in, the objectcan be a backpack, which includes a things-carrying bagfor holding articles therein and a flap coverconnected to the things-carrying bag. In this case, the first woven strapis connected to the flap coverand the second woven strapis connected to the things-carrying bag.

Please refer to, which is an exploded perspective view of the magnetic fastening buckleaccording to a first preferred embodiment of the present invention. In the first preferred embodiment, the magnetic fastening buckleincludes a male buckle member, a female buckle member, a set of retaining means, a set of magnetic attraction means, an anti-separation member, a set of locating means, a set of limiting means, and a set of guiding means. Please refer to. The male buckle memberincludes a male main body, a male-side coupling sectionformed on a part of the male main body, and a male-side woven strap connection sectionformed on remaining part of the male main bodyand located at a right side of the male main body. The male-side coupling sectionhas an underside surface, which defines a male-side contact surface. And, the male-side coupling sectionhas an upper side surface, a part of which is downward recessed in the z-axis direction to define a male-side receiving spacein the male-side coupling section. Further, the male-side woven strap connection sectionis provided with a male-side assembling spacefor the first woven strap(see) to be assembled thereto.

Please refer to. The female buckle memberincludes a female main bodyand a female-side stop cover. A female-side coupling sectionis formed on a part of the female main body, and a female-side woven strap connection sectionis formed on remaining part of the female main bodyand located at a left side of the female-side coupling section. The female-side coupling sectionhas an upper side surface, which defines a female-side contact surfacethat faces toward the male-side contact surfaceof the male buckle member. Further, the female-side coupling sectionhas an underside surface that is upward recessed in the z-axis direction to define a female-side receiving spacein the female-side coupling section. The female-side woven strap connection sectionis provided with a female-side assembling spacefor the second woven strap(see) to be assembled thereto. The female-side stop coveris mounted to the underside surface of the female-side coupling section, such that the female-side stop covercloses the female-side receiving space, and the female-side receiving spaceis in a closed state and not communicable with an external space.

Please refer to. The set of retaining meansis formed on between the male buckle memberand the female buckle member, and includes a male-side retaining portionand a female-side retaining portion. The male-side retaining portioncan be assembled to the female-side retaining portion. The male-side retaining portionis formed on the male-side contact surfaceof the male-side coupling section, and the female-side retaining portionis formed on the female-side contact surfaceon the female-side coupling section. In the first preferred embodiment, the male-side retaining portionincludes an engagement portiondownward protruded from the male-side contact surfacein the z-axis direction, two retaining protrusionsrespectively extended from one side of the engagement portionfacing away from the male-side contact surfacein the x-axis direction, and two anti-separation blockrespectively located between one engagement portionand one corresponding retaining protrusionto protrude therefrom. The female-side retaining portionincludes a engaging spacefor receiving the engagement portionof the male-side retaining portiontherein, a retaining spacesfor receiving the retaining protrusionstherein, and one anti-separation spacefor receiving the anti-separation blocktherein. Every engaging spaceis downward recessed from the female-side contact surfacein the z-axis direction, such that an engagement openingis formed on the female-side contact surfacecorresponding to the engaging space. On the other hand, one side of the engaging spaceopposite to the engagement openingis recessed in the x-axis direction to form the retaining space, such that the retaining spaceis located inside the female-side coupling section. Further, another side of the engaging spacefarther from the engagement openingis recessed to form the anti-separation space. As can be seen in the drawings, the engaging spaceand the corresponding retaining spaceare extended to a rear side of the female main bodyin the y-axis direction, such that the female-side retaining portionincludes the rear removal openinglocated at the rear side of the female main bodyin the y-axis direction, and the rear removal openingis communicable with both the engaging spaceand the corresponding retaining space. The retaining spaceare used to stop the retaining protrusionsof the male-side retaining portionfrom moving in the z-axis direction. Further, the anti-separation spacerespectively has a rear side forming a slant anti-separation surface.

Please refer to. The set of magnetic attraction meansinclude a male-side magnetand a female-side magnet, which are magnetically attracted to each other and can therefore move toward each other automatically. The male-side magnetis installed in the male-side receiving spaceon the male buckle member, while the female-side magnetis installed in the female-side receiving spaceon the female buckle member. The female-side magnetis received in the female-side coupling sectionon the female buckle memberand stopped from falling off the female-side coupling sectionby the female-side stop cover, such that the female-side magnetis embedded in the female buckle member.

Please refer to. The anti-separation memberincludes a connection sectionand a front stop section. The connection sectionincludes an top connection plate, and a front connection plateand a rear connection platethat are downward extended in the z-axis direction to be formed at a front and a rear side of the top connection platein the y-axis direction, respectively, such that the upper, the front, and the rear connection plate,,together define a connection spacein between them. The front stop sectionis integrally formed with a lower end surface of the front connection plate. The top connection plateis connected to a top of the male-side coupling sectionand movable in the x-axis direction, such that the anti-separation memberis movable relative to the male buckle member. The top connection platecovers the male-side receiving spaceof the male buckle member, so that the male-side receiving spaceis in a closed state and not communicable with an external space. The male-side magnetof the set of magnetic attraction meansis enclosed in between the male-side coupling sectionand the top connection plateand prevented from falling off the male-side receiving space. As shown in, when the top connection plateis movably connected to the top of the male-side coupling section, the male-side coupling sectionis correspondingly extended into the connection spacewith the front and the rear connection plate,being located at a front and a rear side of the male-side coupling section, respectively. Meanwhile, the front stop sectionis downward extended beyond the male-side contact surfaceof the male buckle member, such that the connection sectionand the front stop sectionare located above and below the male-side contact surface, respectively.

Please refer to. The set of locating meansis provided on between the male main bodyand the anti-separation member. As shown, the locating meansincludes a first locating part, which are respectively configured as a protrusion and symmetrically provided on the front and the rear side of the male-side coupling sectionof the male main body; and two second locating partsarranged side by side and symmetrically provided on the front and the rear connection plate,of the anti-separation member. Each of the second locating partsis configured as a dent. When the anti-separation memberis moved relative to the male buckle member, the first locating partcan be engaged with one of the second locating parts.

Please refer to. The set of limiting meansis provided on between the male main bodyand the anti-separation memberfor limiting the anti-separation memberfrom moving in the x-axis direction relative to the male buckle member. As shown, the limiting mechanisminclude a limiting recessand a limiting rib. The limiting recessis recessed from the male-side coupling sectionof the male buckle memberand communicable with the male-side receiving spaceof the male buckle member. Two opposite ends of the limiting recessbeing defined a closed endand another one is an open end; and each limiting ribis formed on and downward protruded from a lower side of the top connection plateof the anti-separation memberto engage with the limiting recess.

Please refer to. The set of guiding meansis provided on between the male buckle memberand the female buckle member. The guiding meansinclude two male-side guiding surfacesand two female-side guiding surfaces; and the male-side guiding surfacesare correspondingly contactable with the female-side guiding surfaces. As shown, the male-side guiding surfacesare formed on the retaining protrusionsof the male-side retaining portion; and the female-side guiding surfacesare formed at the engagement openingof the female-side retaining portion. As shown, the male-side and the female-side guiding surfaces,all are slant surfaces.

Please refer to, which show the manner of assembling the male buckle memberto the female buckle member. First, as shown in, the male-side retaining portionand the female-side retaining portionof the set of retaining meansare initially separated from each other, and the male buckle memberis in a separated position Pwithout contacting with the female buckle member. When the male buckle memberis in the separated position P, a first center of gravityof the male-side magnetand a second center of gravityof the female-side magnetare located on the same vertical straight line L, and the male-side magnetis located directly above and aligned with the female-side magnet. In the first preferred embodiment, the vertical straight line L is parallel with the z-axis.

Please refer to. Owing to a magnetic attraction between the male-side magnetand the female-side magnetof the magnetic attraction means, the male buckle memberis moved downward from the separated position Pin the z-axis direction to approach the female buckle membergradually. When the male-side retaining portionof the retaining meansis in contact with the female-side retaining portionof the retaining means, the male buckle memberis located at a contact position P. When the male buckle memberis located at the contact position P, the slant male-side guiding surfacesare in contact with the slant female-side guiding surfaces. At this point, the male-side magnetand the female-side magnetare still in alignment with each other.

Please refer to. When the male buckle memberis located at the contact position P, the male-side magnetis still magnetically attracted to the female-side magnet, such that the male buckle memberkeeps moving in the z-axis direction. Meanwhile, the contact of the slant male-side guiding surfaceswith the slant female-side guiding surfacesleads the male buckle memberto move leftward in the x-axis direction. Finally, the male buckle membermoving downward in the z-axis direction and leftward in the x-axis direction is moved from the contact position Pto a staggered position P. As shown, when the male buckle memberis located at the staggered position P, the engagement portionand the retaining protrusionsof the retaining meansare located in the engaging spaceof the female-side retaining portion. At this point, the male-side magnetis partially located above the female-side magnet; and the first and the second center of gravity,of the male-side and the female-side magnet,, respectively, are located on two different vertical straight lines L. That is, the male-side magnetand the female-side magnetare staggered in position.

Please refer to. When the male buckle memberis moving from the contact position Pto the staggered position Pand the male-side guiding surfacesof the guiding meansare no longer in contact with the female-side guiding surfacesof the guiding means, the male-side magneton the male buckle memberis magnetically attracted by the female-side magneton the female buckle memberto be movable rightward in the x-axis direction, such that the male buckle memberis moved from the staggered position Pto an engaged position P. At this point, the male-side contact surfaceof the male buckle memberis in contact with the female-side contact surfaceof the female buckle memberand the male-side retaining portionof the retaining meansis engaged with the female-side retaining portionof the retaining means. In the first preferred embodiment, when the male buckle memberis located at the engaged position P, the retaining protrusionsof the male-side retaining portionare received in the retaining spaceof the female-side retaining portion, while the engagement portionsof the male-side retaining portionare located in the engaging spaceof the female-side retaining portion. Therefore, the anti-separation blockof the male-side retaining portioncan extend into the anti-separation spaceof the female-side retaining portion. Meanwhile, the front stop sectionof the anti-separation memberis located outside a front position of the female main bodyof the female buckle memberin the y-axis direction, such that the front stop sectionand the rear removal openingof the female-side retaining portionis located at a front and a rear side, respectively, of the female main body. When the male buckle memberis located at the engaged position P, the male-side magnetand the female-side magnetof the magnetic attraction meansare still staggered from each other. As shown in, when the male buckle memberis located at the engaged position P, since the male-side retaining portionis extended into and engaged with the female-side retaining portion, one of the first woven strapand the second woven strapwill still stay at a user's chin to prevent the helmetfrom separating from the user's head. Alternatively, as shown in, when the male-side retaining portionis engaged with the female-side retaining part, the flap coverof the backpackis not openable to thereby prevent things held in the things-carrying bagfrom falling off the backpack

Please refer to, which depict the manner of separating the male buckle memberfrom the female buckle memberof the magnetic fastening buckleaccording to the first preferred embodiment of the present invention. When the male-side retaining portionof the retaining meansis engaged with the female-side retaining portionof the retaining means, the anti-separation memberis located at an unlocking position SI and the front stop sectionof the anti-separation memberis staggered from the female main bodyof the female buckle member, such that the front stop sectiondoes not overlap any part of the female main bodyof the female buckle member. When the anti-separation memberis located at the unlocking position S, the limiting ribsof the limiting mechanismare in contact with the closed endsof the limiting recess, and the first locating partof the locating meansare connected with one of the two second locating parts, such that the anti-separation memberis held to the unlocking position S. As shown in, when a first removal force Fis applied to the male buckle memberin a direction parallel to the y-axis to move the male buckle memberin the y-axis direction relative to the female buckle member, the retaining protrusionsof the male-side retaining portionwould be moved toward the rear removal openingof the female-side retaining portion. When the retaining protrusionsare being moved toward the rear removal opening, the anti-separation blockof the male-side retaining portionwould get into contact with the anti-separation surfaceof the anti-separation space. At this point, in the case the first removal force Fhas a magnitude large enough to drive the male buckle memberto separate from the female buckle member, the anti-separation blockwould be moved to the engaging spaceof the female-side retainingwhile keep contacting with the anti-separation surface, such that the male buckle memberis movable relative to the female buckle memberin the x-axis and the y-axis direction at the same time. When the retaining protrusionspass over the rear removal opening, they are separated from the retaining spaceof the female-side retaining portion, allowing the male buckle memberto be removable from the female buckle member. At this point, the user may conveniently separate the male buckle memberfrom the female buckle member.

Please refer to. In the case the first removal force Fhas a magnitude too small to drive the male buckle memberto separate from the female buckle member, the magnetic attraction force between the male-side magnetand the female-side magnetof the magnetic attraction meansenables the anti-separation surfaceof the anti-separation spaceto drive the anti-separation blockof the male-side retaining portionto move, such that the anti-separation blockare moved back into the anti-separation spaceand it is ensured the retaining protrusionsof the male-side retaining portioncan be received in the retaining spaceof the female-side retaining portion. In this manner, once the male buckle memberis assembled to the female buckle member, it is not a concern that whether the male buckle memberwould separate from the female buckle memberdue to the first removal force F. To the contrary, the magnetic fastening bucklecan be safer for use.

Please refer to, which depict the manner of preventing the male buckle memberfrom separating from the female buckle memberof the magnetic fastening buckleaccording to the first preferred embodiment of the present invention. First, the anti-separation memberis moved leftward in the x-axis direction from the unlocking position Sto a locking position S, so that the anti-separation memberis moved across the male buckle memberto the female main bodyof the female buckle memberand the front stop sectionis able to overlap any part of the female main bodyin the y-axis direction. When the anti-separation memberis located at the locking position S, the limiting ribof the limiting mechanismis extended through the open endsof the limiting recess, and the first locating partof the locating meansis engaged with another one of the two second locating parts, so that the anti-separation memberis held to the locking position S. Then, as shown in, a first removal force Fis applied to the male buckle memberfor the latter to move rearward in the y-axis direction relative to the female buckle member. At this point, the front stop sectionof the anti-separation membergets in contact with the front side of the female main bodyto prevent the male main bodyfrom separating from the female main body.

Please refer to, which shows a magnetic fastening buckleaccording to a second preferred embodiment of the present invention. The magnetic fastening bucklein the second preferred embodiment includes a male buckle member, a female buckle member, a set of retaining means, a set of magnetic attraction means, an anti-separation member, a set of locating means, a set of limiting mechanism, and a set of guiding means. The second preferred embodiment is different from the first one in that the female buckle memberand the anti-separation memberrespectively have a structure different from that in the first preferred embodiment. Since the male buckle member, the set of retaining means, the set of magnetic attraction means, the set of locating means, the set of limiting mechanism, and the set of guiding meanshave structures the same as those in the first preferred embodiment, they are not repeatedly described herein.

Please refer to. In the second preferred embodiment, the female-side woven strap connection sectionof the female buckle memberhas a thickness larger than that of the female-side coupling sectionof the female main body; and one side of the female-side woven strap connection sectionopposite to the female-side coupling sectionis protruded to form a limiting block, the limiting block has a height position higher than that of the female-side retaining portionof the retaining means. In addition, the anti-separation memberfurther includes a front reinforcing stop section, which is formed on the front connection plateof the connection section, so that the front stop sectionand the front reinforcing stop sectionof the anti-separation memberare located at the same side of the connection section. When the anti-separation memberis movably connected to the male buckle member, the front reinforcing stop sectionhas a height position higher than the male-side contact surfaceof the male buckle member.

Please refer to, which depict the manner of separating the male buckle memberfrom the female buckle memberaccording to the second preferred embodiment of the present invention. First, when the male-side retaining portionof the retaining meansis engaged with the female-side retaining portionof the retaining means, the anti-separation memberis located at an unlocking position S, and neither the front stop sectionnor the front reinforcing stop sectionof the anti-separation memberoverlap any part of the female main body. Then, apply a first removal force Fto the male buckle memberfor the latter to move in the y-axis direction relative to the female buckle member, such that the retaining protrusionsof the male-side retaining portionapproach the rear removal openingof the female-side retaining portiongradually. When the retaining protrusionsare being moved toward the rear removal opening, the anti-separation blockof the male-side retaining portionwould get into contact with the anti-separation surfaceof the anti-separation space. At this point, in the case the first removal force Fhas a magnitude large enough to drive the male buckle memberto separate from the female buckle member, the anti-separation blockwould be moved to the engaging spaceof the female-side retaining portionwhile keeps contacting with the anti-separation surface, such that the male buckle memberis movable relative to the female buckle memberin the x-axis and the y-axis direction at the same time. When the retaining protrusionspass through the rear removal opening, the retaining protrusionsare separated from the retaining spaceof the female-side retaining portion, such that the male buckle memberis removable from the female buckleand the user can conveniently separate the male buckle memberfrom the female buckle member.

Please refer to, which depict the manner of preventing the male buckle memberfrom separating from the female buckle memberaccording to the second preferred embodiment of the present invention. First, the anti-separation memberis moved in the x-axis direction to a locking position S, so that the anti-separation memberis moved across the male buckle memberto the female main bodyof the female buckle memberand the front stop sectionis able to overlap any part of the female-side coupling sectionin the y-axis direction. Meanwhile, the front reinforcing stop sectionoverlaps the limiting blockof the female-side woven strap connection sectionin the y-axis direction. Then, a first removal force Fis applied to the male buckle memberfor the latter to move rearward in the y-axis relative to the female buckle member. At this point, the front stop sectionwould get into contact with a front side of the female buckle memberand the front reinforcing stop sectionis in contact with a front side of the limiting blockin the y-axis direction to prevent the male buckle memberfrom separating from the female main body.

Please refer to, which is an exploded perspective view of a magnetic fastening buckleaccording to a third preferred embodiment of the present invention. In the third preferred embodiment, the magnetic fastening buckleincludes a male buckle member, a female buckle member, a set of retaining means, a set of magnetic attraction means, an anti-separation member, a set of locating means, a set of limiting mechanism, and a set of guiding means. The third preferred embodiment is different from the second one in that the male main body, the retaining means, and the anti-separation memberrespectively have a structure different from that in the second preferred embodiment. Since the female buckle member, the magnetic attraction means, locating means, the limiting mechanism, and the guiding meanshave structures the same as those in the second preferred embodiment, they are not repeatedly described herein.

As shown in, the male main bodyof the male buckle memberhas a male-side coupling section, which has a thickness smaller than that of a rear part of the male-side woven strap connection section; and the engaging spaceand the retaining spaceof the female-side retaining portionare extended to a front side of the female main bodyin the y-axis direction, such that the female-side retaining portionfurther includes the front removal openingformed at the front side of the female main bodyin the y-axis direction to be communicable with both the engaging spaceand the retaining space. That is, the front removal openingis correspondingly located in front of and spaced from the rear removal opening. Further, the female-side retaining portionfurther includes onesecondary anti-separation surface, which are two slant surfaces located at a front side of the anti-separation space(referring to). Also, the anti-separation memberfurther includes a rear stop sectionand a rear reinforcing stop section. The rear stop sectionis integrally formed with a lower end surface of the rear connection plate, and the rear reinforcing stop sectionis integrally formed with a left side surface of the rear connection plate. When the top connection plateof the connection sectionis movably connected to an upper side of the male-side coupling section, the rear stop sectionwill pass over the male-side contact surfaceof the male buckle member, such that the connection sectionand the rear stop sectionare located at an upper and a lower side, respectively, of the male-side contact surface. Meanwhile, the rear reinforcing stop sectionhas a height position higher than the male-side contact surfaceof the male buckle member.

Please refer to, which depict the manner of moving the male buckle memberrearward in the y-axis direction to separate it from the female buckle memberaccording to the third preferred embodiment of the present invention. When the male-side retaining portionof the retaining meansis engaged with the female-side retaining portionof the retaining means, the anti-separation memberis located at an unlocking position Sand the rear stop sectionand the rear reinforcing stop sectionof the anti-separation memberall are located at an outer side of the female main body. Meanwhile, the front stop sectionof the anti-separation memberis located in front of the front removal openingof the female-side retaining portion; and the rear stop sectionis located behind the rear removal openingof the female-side retaining portion, and the front and the rear reinforcing stop section,of the anti-separation memberare staggered from the limiting blockof the female-side woven strap connection section, such that none of the front stop section, the front reinforcing stop section,, the rear stop section,, and the rear reinforcing stop sectioncan overlap any part of the female main body. Then, a first removal force Fis applied to the male buckle memberto move the male buckle memberin the y-axis direction relative to the female buckle member, so that the retaining protrusionsof the male-side retaining portionapproach the rear removal openingof the female-side retaining portiongradually. When the retaining protrusionsare being moved toward the rear removal opening, the anti-separation blockof the male-side retaining portionwould get into contact with the anti-separation surfaceof the anti-separation space. At this point, in the case the first removal force Fhas a magnitude large enough to drive the male buckle memberto separate from the female buckle member, the anti-separation blockwould be moved to the engaging spaceof the female-side retaining portionwhile keep contacting with the anti-separation surface, such that the male buckle memberis movable relative to the female buckle memberin the x-axis and the y-axis direction at the same time and the front stop sectioncan be moved into one of the engaging space. When the front stop sectionpasses through the rear removal opening, the retaining protrusionsare separated from the retaining spaceof the female-side retaining portion, allowing the male buckle memberto be removable from the female buckle member. At this point, the user may conveniently separate the male buckle memberfrom the female buckle member.

Please refer to, which depicts the manner of moving the male buckle memberforward in the y-axis direction to separate it from the female buckle memberaccording to the third preferred embodiment of the present invention. In this case, a second removal force F, that is opposite in direction to the first removal force F, is applied to the male buckle memberto move the latter in the y-axis direction relative to the female buckle member, so that the retaining protrusionsof the male-side retaining portiongradually approach the front removal openingof the female-side retaining portion. When the retaining protrusionsare being moved toward the front removal opening, the anti-separation blockof the male-side retaining portionwould get into contact with the secondary anti-separation surfaceof the anti-separation space. At this point, in the case the second removal force Fhas a magnitude large enough to drive the male buckle memberto separate from the female buckle memberand the anti-separation blockare moved to the engaging spaceof the female-side retaining portionwhile keep contacting with the secondary anti-separation surface, the male buckle membercan be moved relative to the female buckle memberin the x-axis and the y-axis direction at the same time, such that the rear stop sectionof the anti-separation membercan be moved into the engaging space. Then, when the rear stop sectionpasses through the corresponding front removal opening, the retaining protrusionsare separated from the retaining spaceof the female-side retaining portion, allowing the male buckle memberto be removed from the female buckle member. At this point, the user may conveniently separate the male buckle memberfrom the female buckle member.

Please refer to. In the case the second removal force Fhas a magnitude too small to drive the male buckle memberto separate from the female buckle member, the magnetic attraction force between the male-side magnetand the female-side magnetof the magnetic attraction meansenables the secondary anti-separation surfaceof the anti-separation spaceto drive the anti-separation blockof the male-side retaining portionto move, such that the anti-separation blockare moved back into the anti-separation spaceand it is ensured the retaining protrusionsof the male-side retaining portioncan engage with the retaining spaceof the female-side retaining portion. In this manner, once the male buckle memberis assembled to the female buckle member, it is not a concern whether the male buckle memberwould separate from the female buckle memberdue to the secondary removal force F. To the contrary, the magnetic fastening bucklecan be safer for use.

Please refer to, which depict the manner of preventing the male buckle memberfrom separating from the female buckle memberof the magnetic fastening buckleaccording to the third preferred embodiment of the present invention. First, the anti-separation memberis moved in the x-axis direction to a locking position S, so that the anti-separation memberis moved across the male buckle memberto the female main bodyof the female buckle member, the front stop section and the rear stop section,are able to overlap any part of the female-side coupling sectionin the y-axis direction, and the front and rear reinforcing sections,are able to overlap the limiting blockof the female-side woven strap connection sectionin the y-axis direction. Then, a first removal force Fis applied to the male buckle memberfor moving the latter rearward in the y-axis direction relative to the female member. At this point, the front stop sectionwould contact with the front side of the female-side coupling section, and the front reinforcing stop sectionwould contact with a front side of the limiting blockin the y-axis direction, so as to prevent the male main bodyfrom separating from the female main body. When a second removal force Fis applied to the male buckle memberfor moving the latter forward in the y-axis direction relative to the female buckle member, the rear stop sectionwould contact with the rear side of the female-side coupling section, and the rear reinforcing stop sectionwould contact with a rear side of the limiting blockin the y-axis direction, so as to prevent the male main bodyfrom separating from the female main body.