JP7689987B2 - Fastener - Google Patents

Description

The present invention relates to a fastener for jewelry.

Conventionally, as a fastener used for accessories such as necklaces, for example, a fastener for accessories such as the one disclosed in Patent Document 1 has been disclosed. The fastener disclosed in Patent Document 1 is composed of a first part and a second part, the first part being composed of a ring-shaped body having an approximately C-shape and a pin member having one end abutting the ring-shaped body, and the second part being provided with an engagement hole. When a user is going to wear the accessory, the user holds the first part and the second part in each hand, and while the ring-shaped body of the first part and one end of the pin member are not abutting, the user passes the engagement hole of the second part through the gap between the two parts while the pin member is inserted into the engagement hole, and abuts the ring-shaped body and one end of the pin member. This results in a state in which the first member and the second member are connected. Patent Document 2 also discloses an accessory fastener in which magnets are provided on each of the two parts constituting the fastener, and the two parts are connected by the attraction of the two magnets.

Japanese Patent Application Publication No. 10-155530 JP 2003-61717 A

For example, when a user puts on or takes off a necklace, the user often connects or separates the clasp without visually checking it behind the neck. In addition, in the case of a clasp such as that of Patent Document 1, the user generally pinches the first and second parts, which are very small parts, with the fingertips of both hands to connect or separate the first and second parts, thereby putting on or taking off the accessory. At this time, fine hand movements are required to penetrate the pin member of the first part into the engagement hole of the second part and to separate them, which often leads to failure, and there are problems such as it taking a long time to put on or take off the accessory. In addition, in the case of the clasp of Patent Document 2, if a force is applied in a direction that pulls the two parts of the clasp apart while the accessory is being worn, the magnet parts of the two parts are relatively easily separated, causing the accessory to fall off.

The present invention was made in consideration of these problems.

In order to solve the above problem, one aspect of the present invention is a fastener for a personal accessory, the fastener comprising: a first part connected to one end of the personal accessory and having an inner surface formed in a substantially V-shape, the inner surface having a first magnet part on at least a portion thereof; and a second part connected to the other end of the personal accessory, having a second magnet part on at least a portion of an outer surface thereof, the second magnet part being capable of being attracted to the first magnet part on the inner surface side of the first part.

FIG. 2 is a diagram showing an example of the appearance of a fastener according to an embodiment. 1A to 1C are diagrams showing an example of a front view of a fastener according to an embodiment in which a first part and a second part are connected to each other; FIG. 2 illustrates an example of a perspective view of a fastener according to an embodiment in which a first part and a second part are spaced apart. FIG. 2 is a diagram showing an example of a front view of a first component; FIG. 13 is a diagram showing an example of a front view of a second component. FIG. 13 is a diagram illustrating an example of a front view of the fastener in a state in which the first component and the second component are separated from each other. 10A and 10B are diagrams illustrating examples of thicknesses of a first component and a second component. 13A and 13B are diagrams illustrating a modified example of the fastener according to the embodiment.

The following describes an embodiment of the present invention in detail with reference to the drawings. In this embodiment, a fastener for a case where the accessory is a necklace is described, but the fastener is not limited to this. The fastener according to this embodiment can be used for various accessories, and is particularly suitable for accessories that are used in a ring shape such as necklaces, pendants, bracelets, anklets, etc.

Figure 1 is a diagram showing an example of the appearance of the fastener according to this embodiment. The fastener 1 of the accessory 5 according to this embodiment is composed of a first part 10 and a second part 20. The first part 10 is connected to one end 51 of the accessory 5, and the second part 20 is connected to the other end 52 of the accessory 5. Also, Figure 1 shows the state in which the first part 10 and the second part 20 of the fastener 1 are connected, which allows the accessory 5 to have a ring shape as a whole. Also, the first part 10 and the second part 20 can be connected in a state in which they are attracted to each other by a first magnet part and a second magnet part provided on each part, as described below.

Figure 2 shows an example of a front view, top view, bottom view, right side view, and left side view of the fastener 1 according to this embodiment in a connected state between the first part 10 and the second part 20. Figure 2(a) is an example of a front view of the fastener 1, Figure 2(b) is an example of a top view of the fastener 1, Figure 2(c) is an example of a bottom view of the fastener 1, Figure 2(d) is an example of a right side view of the fastener 1, and Figure 2(e) is an example of a left side view of the fastener 1.

As shown in FIG. 2(a), the fastener 1 of this example has a thick, approximately isosceles triangle shape as a whole when the second part 20 and the second part 20 are connected, and the apex of the approximately isosceles triangle shape is rounded. Note that "approximately" means that they do not have to match strictly, and a certain degree of misalignment is permitted (as throughout this specification). As an example, the vertical width l of the fastener 1 is approximately 14 mm (millimeters), the horizontal width w is approximately 6.4 mm, and the thickness d is approximately 3 mm. In addition, in the fastener 1 of this example, the thicknesses of the first part 10 and the second part 20 are approximately the same. As a result, when the first part 10 and the second part 20 are connected as shown in FIG. 2, there is almost no step at the boundary between the first part 10 and the second part 20 on the plate-shaped surface of the fastener 1, and the plate-shaped surface has a smooth appearance. This gives the first part 10 and the second part 20 a unified appearance, which contributes to an aesthetic look.

3 shows an example of a perspective view of the fastener 1 according to this embodiment in a state in which the first part 10 and the second part 20 are separated. FIG. 3(a) is a perspective view of the fastener 1 seen from direction A in FIG. 2, and FIG. 3(b) is a perspective view of the fastener 1 seen from direction B in FIG. 2. The first part 10 of the fastener 1 has a ring-shaped first connection part 12 for connecting to one end 51 of the accessory. The first part 10 has an inner surface part 15 formed in a substantially V-shape. The inner surface part 15 also has a first magnet part 17 (shaded part 17) in at least a part. In this embodiment, the first magnet part 17 is configured by providing two substantially rectangular magnets in each part of the part corresponding to the two sides of the substantially V-shape of the inner surface part 15, but this is merely an example. The first magnet part 17 may be formed in a substantially V-shape so as to follow the substantially V-shaped inner surface part 15, for example.

In this example, the second part 20 has an approximately triangular prism shape with two bottom surfaces that are approximately isosceles triangles. The second part 20 has a second magnet part 27 (shaded part 27) on at least a part of the outer surface part 26. In this example, the second magnet part 27 is provided on two side surfaces that constitute two equal sides of the approximately triangular prism shape of the second part 20. In this example, the second magnet part 27 is formed by two approximately rectangular magnets, but may be one continuous magnet part. The second part 20 also has a protrusion 23 at one end of the base of the approximately isosceles triangle. The second part 20 also has a ring-shaped second connection part 22 for connecting to the other end 52 of the accessory, and the second connection part 22 is provided on the protrusion 23. As a result, when the first part 10 and the second part 20 are attracted to each other by the first magnet part 17 and the second magnet part 27 as shown in FIG. 2, the two ends of the accessory are connected to both ends of the base of the approximately isosceles triangle as a whole, and the accessory is symmetrical about the axis of symmetry of the approximately isosceles triangle shape of the fastener 1, which contributes to aesthetic appearance. In addition, the user can hold the protrusion 23 with one hand when putting on or taking off the accessory, so the provision of the protrusion 23 also contributes to operability.

In this embodiment, the first magnet portion 17 and the second magnet portion 27 are formed by embedding magnets in the first part 10 and the second part 20, respectively (details will be described later). However, the first magnet portion 17 and the second magnet portion 27 may also be formed by attaching magnets to the first part 10 and the second part 20, respectively. The magnetic force of the first magnet portion 17 and the second magnet portion 27 is, for example, 3400 Gauss (340 millitesla).

The fastener 1 of this embodiment is connected to the accessory 5 by the first connecting portion 12 and the second connecting portion 22. The accessory 5 may be detachable from the fastener 1 at the first connecting portion 12 and the second connecting portion 22, or may be fixed so that it cannot be removed.

In addition, a non-magnetic material may be provided on at least a portion of the outer surface 16 of the first component 10. As shown in FIG. 2, ideally, the second component 20 is attached to the first component 10 by being sandwiched from both sides of the substantially V-shaped inner surface 15, but there may be cases where the second component 20 is attached to the outer surface 16 of the first component 10. Therefore, by providing a non-magnetic material on at least a portion of the outer surface 26 of the first component 10, the second component 20 is less likely to be attached to the outer surface 16 of the first component 10. More specifically, for example, at least a portion of the outer surface 16 of the first component 10 may be covered with aluminum foil having a thickness of about 0.01 to 0.02 mm.

Figure 4 also shows an example of a front view, top view, bottom view, right side view, and left side view of the first part 10. Figure 4(a) is a front view of the first part 10, Figure 4(b) is a top view of the first part 10, Figure 4(c) is a bottom view of the first part 10, Figure 4(d) is a right side view of the first part 10, and Figure 4(e) is an example of a left side view of the first part 10.

As shown in FIG. 4, the first part 10 has an inner surface 15 formed in an approximately V-shape, and has a columnar shape with two approximately V-shaped faces as the bottom surface. In addition, one side 102 of the V shape is shorter than the other side 104 as a whole. When the protrusion 23 of the second part 20 is fitted into the shorter part of one side 102, the length of one side 102 and the thickness of the protrusion 23 of the second part 20 (the length in the vertical direction in FIG. 2) are designed so that the entire fastener 1 becomes an approximately isosceles triangle shape with two sides of approximately the same length as shown in FIG. 2. In addition, the other end 108 of the longer other side 104, which is different from the one end 106 that contacts the one side 102, is provided with a ring-shaped first connection part 12 for connection to one end 51 of the ornament. In this example, the first connection part 12 is annular (ring), but the first connection part 12 may also be a hole to which a ring or chain can be connected.

As shown in Fig. 4(a) and Fig. 4(c), the vertex (end) 106 where the two sides 102, 104 meet has a rounded shape, and the vertex 106 is provided with a third connection part 112 so that a chain or the like can be connected. In the example of Fig. 4, the third connection part 112 has two holes so that a ring or chain can be connected (see Fig. 1). Note that the third connection part 112 may be in a state where a ring for connecting a chain is connected to the two holes.

Figure 5 also shows an example of a front view, top view, bottom view, right side view, and left side view of the second part 20. Figure 5(a) is an example of a front view of the second part 20, Figure 5(b) is an example of a top view of the second part 20, Figure 5(c) is an example of a bottom view of the second part 20, Figure 5(d) is an example of a right side view of the second part 20, and Figure 5(e) is an example of a left side view of the second part 20.

As shown in FIG. 5, the second component 20 has a generally isosceles triangular shape, but has a protrusion 23 at one end of the base of the generally isosceles triangle. The horizontal length of the protrusion 23 is generally the same as the thickness (horizontal width in FIG. 4) of the side 102 of the first component 10. In this embodiment, the length of one side 202, which is one of the two sides other than the base and is connected to the protrusion 23, is generally the same as the length of the side 102 of the first component 10 on the inner surface 15 side, and the length of the other side 204 is generally the same as the length of the side 104 of the first component 10 on the inner surface 15 side. In addition, the outer surface portion 16 of the second part 20 having the second magnet portion 27 has a shape substantially identical to the shape of the inner surface portion 15 of the first part 10, which is formed in a substantially V-shape (the apex angle of the substantially isosceles triangle of the first part 10 and the apex angle of the substantially isosceles triangle of the second part 20 are substantially the same). As a result, when the second part 20 is fitted to the first part 10 in a manner sandwiched from both sides on the substantially V-shaped inner surface portion 15 side, as shown in FIG. 2, the outer surface portion 26 of the second part 20 and the inner surface portion 15 of the side 102 and side 104 (substantially V-shaped) of the first part 10 can be fitted to each other so as to be in close contact with each other as a whole. As a result, when the first part 10 and the second part 20 are fitted to each other, the entire fastener 1 becomes a substantially isosceles triangle shape as shown in FIG. 2, and the appearance of the fastener 1 is well balanced. However, this is merely an example, and the second magnet portion 27 may have any shape as long as it can be attracted to the first magnet portion 17 at least partially by a surface. For example, the length of the side 202 may be longer or shorter than the length of the side 102 of the first component 10 on the inner surface portion 15 side. The length of the side 204 may be longer or shorter than the length of the side 104 of the first component 10 on the inner surface portion 15 side. The lengths of these sides are such that the first magnet portion 17 and the second magnet portion 27 can be in contact with each other at least partially.

The protruding portion 23 is also provided with a ring-shaped second connecting portion 22 for connecting to the other end 52 of the accessory. Note that in this example, the second connecting portion 22 is ring-shaped, but the second connecting portion 22 may also be formed with a hole to which a ring or chain can be connected.

In the example shown in FIG. 5, there are areas 271 and 272 where roughly rectangular magnets are exposed on the outer surface corresponding to sides 102 and 104, respectively, and these areas constitute the second magnet section 27 (see FIG. 5(d) and FIG. 5(e)). However, the second magnet section 27 may be constituted as a single area by connecting these areas.

Further, a detailed description will be given of an example of the configuration of the fastener 1 according to this embodiment. Fig. 6 is an example of a front view of the fastener 1 in a state in which the first component 10 and the second component 20 are separated from each other.
In this example, two magnets 17a and 17b are embedded in the first component 10, and a part of each magnet is exposed to the inner surface regions 15a and 15b, which are parts of the inner surface portion 15 formed in a substantially V-shape, to form the first magnet portion 17. This is just an example, and the magnets 17a and 17b may be attached to the surfaces of the inner surface regions 15a and 15b, respectively. In this example, the first magnet portion 17 is realized by two magnets 17a and 17b, but may be realized by one magnet that is physically continuous, or may be realized by three or more magnets. In this example, the first magnet portion 17 is provided so that the magnets 17a and 17b are exposed to the inner surface regions 15a and 15b, which are parts of the inner surface portion 15, but may be provided over the entire inner surface portion 15.

In the second part 20 in this example, the second magnet part 27 is realized by embedding a magnet 27a having a rectangular (quadratic) shape with two bottom surfaces that are approximately trapezoidal inside the second part 20, and exposing a part of the magnet 27a to the outer surface areas 26a and 26b, which are parts of the two sides of the approximately triangular prism shape of the second part 20. Note that this is just one example, and the second magnet part 27 may be realized by, for example, attaching two thin plate-shaped magnets to the surfaces of the outer surface areas 26a and 26b instead of the magnet 27a. In this example, the second magnet part 27 is composed of one magnet 27a, but may be physically realized by two or more magnets. In this example, the second magnet part 27 is provided only on a part of the two sides of the approximately triangular prism shape of the second part 20, but may be provided over the entire two sides.

In this embodiment, the polarities of the inner surface regions 15a and 15b of the magnets 17a and 17b are different from each other, and the polarities of the outer surface regions 26a and 26b of the magnet 27a are different from each other. Also, for example, if the polarities of the inner surface regions 15a and 15b of the magnets 17a and 17b are N and S, respectively, the polarities of the outer surface regions 26a and 26b of the magnet 27a are S and N, respectively. As a result, when a user is about to wear the accessory, for example, by holding the first part 10 and the second part 20 in each hand and bringing the first part 10 and the second part 20 close to each other, the inner surface region 15a and the outer surface region 26a attract each other, and the inner surface region 15b and the outer surface region 26b attract each other, and the first part 10 is easily attracted to the side of the inner surface portion 15 of the second part 20.

In addition, at this time, the second part 20 may be attracted to the outer surface 16 of the first part 10 due to the magnetic force of the magnets 17a, 17b, and 27a. However, the force of attraction between the first part 10 and the second part 20 is stronger when the second part 20 is attracted to the outer surface 16 of the first part 10 by being sandwiched between the V-shaped first part 10 on the side of the inner surface 15 of the first part 10 than when the second part 20 is attracted to the outer surface 16 of the first part 10. Therefore, even if the user does not directly see the fastener 1, the user can feel the force of attraction between the first part 10 and the second part 20 held in each hand, and can determine whether the second part 20 is attracted to the side of the inner surface 15 of the first part 10 or to the outer surface 16 of the first part 10. Alternatively, if the second part 20 is attached to the outer surface 16 of the first part 10, the user can feel with the left and right hands that the first part 10 and the second part 20 have been attached to each other, and then lightly pull them apart to the left and right (in the direction of the arrow 40 in FIG. 6 ), which will easily separate them. This allows the user to recognize that the second part 20 has been attached to the outer surface 16 of the first part 10, and to reconnect the two parts, etc.

In addition, when the user wears the accessory connected to the fastener 1 (when the first part 10 and the second part are connected), the fastener 1 according to this embodiment is likely to be subjected to a pulling force mainly in the parallel direction (the direction of the arrow 40) in FIG. 6 due to the weight of the accessory. However, at this time, the first magnet part 17 and the second magnet part 27 are attracted to each other in a direction almost opposite to this pulling force, so the first part 10 and the second part 20 are difficult to separate. In other words, the accessory is difficult to fall off. On the other hand, when the user intentionally tries to remove the accessory, the first part 10 and the second part 20 can be relatively easily separated without applying a strong force by pulling the second part 20 in a direction perpendicular to the force of attraction between the first magnet part 17 and the second magnet part 27, that is, in the vertical direction (the direction of the arrow 30) in FIG. In other words, with the fastener 1 of this embodiment, there is a low possibility that the fastener 1 will come undone and the accessory will fall off when the accessory is worn, while when the user intends to put on or take off the accessory, the accessory can be easily put on or taken off without the need for fine manipulation.
(Modification)
Below, modified examples of the fastener 1 according to this embodiment will be described.

As shown in Figs. 2, 4, and 5, the fastener 1 described above has the first part 10 and the second part 20 having substantially the same thickness, but the thicknesses of the first and second parts 10 and 20 may be different. Fig. 7 is a diagram for explaining an example of the thickness of the first part 10 and the second part 20. Each figure shown in Fig. 7 is a side view in which the first part 10 and the second part 20 are overlapped. Note that each figure in Fig. 7 is illustrated in a simplified manner. In the above description, the first part 10 and the second part 20 have substantially rectangular sides and substantially the same thickness as in Fig. 7(a). However, in the fastener 1 according to this embodiment, the second part 20 may be thinner overall than the first part 10, as exemplified in Fig. 7(b). In addition, the first part 10 and the second part 20 may be tapered in one direction, as exemplified in Fig. 7(c). In the example of FIG. 7(c), the first component 10 and the second component 20 taper downward, but they may also taper upward.

Figure 8 shows another modified example of the fastener 1 according to this embodiment. Figure 8(a) shows an example of the configuration of the fastener 1 in which the second part 20 does not have a protrusion 23. In this case, the first part 10 has a generally symmetrical V-shape, and the second part 20 has a generally symmetrical isosceles triangular shape. In this example configuration, the positions of the first connection part 12 and the second connection part 22 of the fastener 1, which are respectively connected to one end 51 and the other end 52 of the accessory 5, may be as shown in Figure 8(a) as an example.

Also, FIG. 8(b) shows a case where the shapes of the first part 10 and the second part 20 are the same as those of the fastener 1 according to the embodiment described above, but the second part 20 has letters 50 on one or both of the two bottom surfaces 206 of the approximately triangular prism shape. In this way, for example, by adding letters such as the user's initials, a message, a design, etc., the fastener 1 becomes original to the user. In addition, the side of the second part 20 that corresponds to the base part of the approximately isosceles triangle shape may be attached with an ornament 70 such as a gemstone such as a pearl or a diamond. In this way, the fastener 1 not only functions as a fastener, but also has an improved design and aesthetic appearance, and the fastener 1 itself can become a part of the ornament.

Also, FIG. 8(c) shows an example in which the overall shape of the first part 10 is a shape other than an approximately V-shape. In the example of FIG. 8(c), the shape of the second part 20 is an approximately triangular prism having two bottom surfaces that are approximately isosceles triangles with protrusions 23, as in FIG. 8(b). Also, the first part 10 has an inner surface portion 15 formed in an approximately V-shape, while the outer surface portion 16 of the columnar shape has a rounded shape. In the example of FIG. 8(c), the bottom surface of the columnar shape is heart-shaped as a whole. In this way, when the outer surface portion 16 of the first part 10 has a rounded shape, even if the first magnet portion 17 and the second magnet portion 27 attract each other by magnetic force and the second part 20 is attracted to the outer surface portion 16 of the first part 10 (the second part 20' shown by the dashed line), the area of contact between the first part 10 and the second part 20 is small. As a result, the second part 20 is less likely to be adsorbed to the outer surface portion 16 of the first part 10, and even if the second part 20 is adsorbed, the first part 10 and the second part 20 can be easily separated by pulling the first part 10 and the second part 20 with a small force, so that it is easy for the user to determine whether the second part 20 is adsorbed to the inner surface portion 15 or the outer surface portion 16 of the first part 10 even when the user is not looking directly at the fastener 1. In addition, the outer surface portion 16 of the first part 10 may have another shape. For example, the outer surface portion 16 may have a shape other than a linear shape, such as a star shape or a wave shape. Even in the case of such a shape, the area of the second part 20 in contact with the first part 10 is reduced, so that the second part 20 is less likely to be adsorbed to the outer surface portion 16 of the first part 10 by mistake, and even if the second part 20 is adsorbed, the first part 10 and the second part 20 can be easily separated by pulling the first part 10 and the second part 20 with a small force. Also, the shape of the second part 20 in the modified example of FIG. 8(c) may be an approximately isosceles triangle shape that is symmetrical as a whole, without the protrusion 23, as in FIG. 8(a). In this case, the first part 10 has an approximately V-shape that is symmetrical as a whole. Also, the positions of the first connection part 12 and the second connection part 22 of the fastener 1 may be the same as in FIG. 8(a).

Returning to FIG. 1, the method of using the clasp 1 will be further described. As shown in FIG. 1, the clasp 1 can be connected to one end 51 and the other end 52 of the accessory 5. In the example of FIG. 1, the ends 51 and 52 of the accessory 5 are configured as metal chains of gold, silver, platinum, etc., followed by an ornament 55 such as a jewel or a mirror ball, a metal chain 56, and a jewel 57, in that order. In addition, a third connection part 112 is provided at the apex part of the approximately isosceles triangle shape of the clasp 1. A metal chain 61, an ornament 62 such as a jewel or a mirror ball, a metal chain 63, and an ornament 64 such as a jewel or a mirror ball are connected to the third connection part 112 in that order. In addition, the metal chain 61 can rotate at the third connection part 112. The clasp 1 of this example is configured as shown in FIG. 1, and therefore not only functions as a clasp, but also has a high design quality. When the user wears the accessory 5, the fastener 1 is usually located behind the user's neck, but with the design shown in FIG. 1, the fastener 1 itself can also be a beautiful addition to the user's neck. In addition, when the first part 10 and the second part 20 are connected, the fastener 1 itself has a generally symmetrical isosceles triangle shape. As a result, the generally V-shaped inner part 15 of the first part 10 adheres to at least a part of the outer surface 26 of the second part 20, providing a fastener that is highly functional in that it is difficult to come off when the accessory 5 is worn, while also being aesthetically pleasing.

In the above description, the fastener 1 is illustrated in each drawing with the base of the approximately isosceles triangle at the top (appearing to be V-shaped overall), but this is only illustrated for convenience of explanation. The fastener 1 in each of the above-mentioned embodiments can be used for various accessories such as necklaces, pendants, bracelets, anklets, etc., so the fastener 1 can be used, for example, with the base of the approximately isosceles triangle at the top or bottom, or facing horizontally or diagonally, depending on the usage situation.

So far, one embodiment of the present invention has been described, but it goes without saying that the present invention is not limited to the above-mentioned embodiment and may be implemented in various different forms within the scope of its technical concept.

Moreover, the scope of the present invention is not limited to the exemplary embodiments shown and described, but includes all embodiments that achieve the same effect as the object of the present invention. Furthermore, the scope of the present invention is not limited to the combination of the features of the invention defined by each claim, but may be defined by any desired combination of specific features among all the respective features disclosed.
(Additional Note)
The following configurations also fall within the technical scope of the present invention.
(1)
A fastener for an ornament, comprising:
A first part is connected to one end of the accessory and has an inner surface formed in a substantially V-shape, the inner surface having a first magnet portion at least in a portion thereof;
a second part connected to the other end of the accessory, the second part having a second magnet part on at least a part of an outer surface thereof, the second magnet part being capable of being attracted to the first magnet part on the inner surface side of the first part;
A fastener comprising:
(2)
The fastener of (1) above, wherein the second magnet portion has a shape that allows it to be attracted to the first magnet portion at least partially by surface.
(3)
The fastener of (1) or (2) above, wherein at least a portion of the outer surface of the second part having the second magnet portion has approximately the same shape as the inner surface of the first part, which is formed in an approximately V-shape.
(4)
The fastener described in any of (1) to (3) above, wherein the second part is approximately a triangular prism shape whose two base surfaces are approximately isosceles triangles, and the second magnet portion is provided on two side surfaces of the approximately triangular prism shape.
(5)
A fastener as described in any of (1) to (4) above, having a protrusion at one end of the base of the approximately isosceles triangle of the second part, and the other end of the ornament can be connected to the protrusion.
(6)
A fastener as described in any one of (1) to (5) above, wherein at least a portion of an outer surface of the first component is provided with a non-magnetic material.
(7)
The fastener according to any one of (1) to (6) above, wherein the first part and the second part have approximately the same thickness.
(8)
The fastener according to any one of (1) to (7) above, wherein the outer surface of the first part is rounded.

REFERENCE SIGNS LIST 1: fastener 5: jewelry 10: first part 12: first connection part 15: inner surface part 15a: inner surface region 15b: inner surface region 16: outer surface part 17: first magnet part 17a, 17b: magnet 106: end part (vertex part)
108: end portion 112: third connecting portion 20: second part 22: second connecting portion 23: protrusion 26: outer surface portion 26a, 26b: outer surface region 27: second magnet portion 27a: magnet 271, 272: magnet 50: character 51, 52: end portion of jewelry 55, 62, 64, 70: decoration 56, 61, 63: metal chain 57: jewel

Claims (8)

A fastener for an ornament, comprising:
A first part is connected to one end of the accessory and has an inner surface formed in a substantially V-shape, the inner surface having a first magnet portion at least in a portion thereof;
a second part connected to the other end of the accessory, the second part having a second magnet part on at least a part of an outer surface thereof, the second magnet part being capable of being attracted to the first magnet part on the inner surface side of the first part;
Equipped with
A fastener , wherein the second part is approximately a triangular prism shape whose two base surfaces are approximately isosceles triangles, and the second magnet portion is provided on two side surfaces of the approximately triangular prism shape . The fastener according to claim 1, wherein the second magnet portion has a shape capable of being attracted to the first magnet portion at least partially by a surface. The fastener according to claim 1, wherein at least a portion of the outer surface of the second part having the second magnet portion has a shape substantially identical to the inner surface of the first part that is formed in the substantially V-shape. The fastener according to claim 1 , wherein the second part has a protrusion at one end of a base of the approximately isosceles triangle, and the other end of the jewelry is configured to be connected to the protrusion. the first component has a columnar shape with two bottom surfaces that are substantially V-shaped, one side of the V-shape being shorter than the other side, and the protruding portion of the second component is fitted into the one side, so that the fastener as a whole has an isosceles triangle shape with two sides that are substantially the same length;
The fastener according to claim 4, configured so that one end of the jewelry, different from the other end, is connected to the other end of the other side of the first component, different from the one end that contacts the one side. 2. The fastener according to claim 1, wherein the first part is shaped like a cylinder having two bottom surfaces that are approximately V-shaped, and the height of the approximately triangular prism shape of the first part and the height of the cylinder shape of the second part are approximately the same. The fastener according to claim 1, wherein at least a portion of the outer surface of the first component is provided with a non-magnetic material. The fastener of claim 1, wherein the outer surface of the first part is rounded.