JP2024063463A - Fastener - Google Patents

Abstract

[Problem] To provide a fastener for jewelry that can be fastened and detached with a simple operation. [Solution] A fastener for jewelry, comprising a male member and a female member, the male member having a head, the female member having a housing with a through hole formed therein, and an elastic member disposed within the housing, the head being inserted into the housing at a first position of the through hole to press down on the elastic member, and at a second position of the through hole being engaged within the housing by the restoring force of the elastic member, the fastener being configured to be movable from the first position to the second position with the elastic member pressed down. [Selected Figure] Figure 4

Description

This disclosure relates to fasteners for jewelry such as necklaces, bracelets, and anklets.

In general, an annular accessory such as a necklace comprises an ornament having a jewel or other ornament, a string-like member connected to the ornament, and a fastener that connects both ends of the string-like member. In such an annular accessory, the ornament and the fastener are placed in separate positions. In particular, in the case of a necklace, the ornament is placed on the wearer's chest, and the fastener is placed on the back of the wearer's neck.

However, when the wearer puts on or takes off the ring-shaped jewelry, they have to perform complicated operations on small fasteners that are located separately from the jewelry body.

In addition, necklaces have the problem that they are difficult to put on and take off because the clasp must be operated in a position that is not visible on the neck. Also, while the necklace is worn around the neck, the clasp may move from the back of the neck toward the chest due to its own weight, which reduces the decorative effect of the necklace.

Therefore, in order to solve the above problems, the present application provides a fastener for jewelry that can be fastened and removed with a simple operation.

To solve the above problems, the present application also provides a fastener for jewelry that can provide a function as a fastener for an ornament.

In order to solve the above-mentioned problems, one aspect of the present invention provides a fastener for jewelry, comprising a male member and a female member, the male member comprising a head, the female member comprising a housing with a through hole formed therein and an elastic member disposed within the housing, the head being inserted into the housing at a first position of the through hole to press down on the elastic member, and being engaged in the housing by the restoring force of the elastic member at a second position of the through hole, and configured to be movable from the first position to the second position with the elastic member pressed down.

1 illustrates a necklace with a clasp according to one embodiment of the present disclosure. 1 illustrates a necklace with a clasp according to one embodiment of the present disclosure. FIG. 1 is a perspective view of a fastener according to a first embodiment of the present disclosure. 1 illustrates a cross-sectional view of a fastener according to a first embodiment of the present disclosure. 1 illustrates a coupling operation of a fastener according to a first embodiment of the present disclosure. 4 illustrates a separation operation of the fastener according to the first embodiment of the present disclosure. FIG. 11 is a perspective view of a fastener according to a second embodiment of the present disclosure. 2 illustrates a cross-sectional view of a fastener according to a second embodiment of the present disclosure. 13 illustrates a coupling operation of a fastener according to a second embodiment of the present disclosure. 13 illustrates a separation operation of a fastener according to a second embodiment of the present disclosure.

[Description of the embodiments of the present invention]
First, the contents of the embodiment of the present invention will be listed and described. One embodiment of the present invention has the following configuration.

[Item 1] A fastener for an ornament,
A male member and a female member,
The male member has a head,
The female member is
A housing having a through hole;
a resilient member disposed within the housing;
The head portion comprises:
The through hole is inserted into the housing at a first position to press down the elastic member;
The through hole is engaged in the housing at a second position by a restoring force of the elastic member,
A fastener configured to be movable from the first position to the second position with the elastic member pressed down.

[Item 2] The elastic member has a base portion pivotally provided at the tapered tip of the housing,
2. The fastener according to claim 1, wherein the head is configured to be movable from the first position to the second position while rotating the base.

[Item 3] The female member further includes a protrusion that is inscribed in the housing surrounding the through hole and protrudes in the penetrating direction of the through hole,
2. The fastener according to claim 1, wherein movement of the head inserted inside the housing is locked against the protrusion.

[Item 4] The fastener described in Item 3, in which the head exceeds the tip of the protrusion when moving from the first position to the second position.

[Item 5] The fastener described in Item 4, wherein the protrusion is provided between the first position and the second position.

[Item 6] The fastener described in Item 2, in which the base of the elastic member is connected to the housing by a rivet provided at the tapered tip of the housing.

[Item 7] The fastener described in Item 1, in which the protrusion of the head is configured to fit onto the tip of the elastic member when the elastic member is pressed down, and the head is configured to be movable from the first position to the second position together with the tip of the elastic member.

[Item 8] The fastener described in Item 1, in which the first position of the through hole is in a first portion of the through hole that allows the head to be inserted and removed, and the second position of the through hole is in a second portion of the through hole that is smaller in diameter than the first portion and does not allow the head to be inserted and removed.

[Item 9] The fastener described in any one of items 1 to 8, in which the female member is embedded in an ornament connected to one end of a string-like member of a necklace.

The following describes embodiments of the present invention with reference to the drawings. In the drawings, identical or similar elements are given identical or similar reference symbols, and duplicate descriptions of identical or similar elements may be omitted in the description of each embodiment. Furthermore, the features shown in each embodiment can also be applied to other embodiments as long as they are not mutually inconsistent.

Figure 1 illustrates an example of an accessory having a clasp 4 according to an embodiment of the present disclosure. Hereinafter, the accessory will be described as a necklace 1, but the accessory may also be a bracelet, an anklet, or the like. Figure 1 shows the entire necklace 1. The necklace 1 comprises an ornament 2, a string-like member 3, and a clasp 4. Figure 1 shows the ornament 2 of the necklace 1 connected to the string-like member 3 by the clasp 4. The clasp 4 is composed of a male member 6 and a female member 5. The female member 5 of the clasp 4 is embedded in the ornament 2, which is the main part of the necklace 1, and is shown transparently in Figure 1.

Figure 2 illustrates a necklace 1 equipped with a clasp 4 according to an embodiment of the present disclosure. Figure 2 shows the state in which the ornamental body 2 of the necklace 1 is separated from the string-like member 3. As shown in Figure 2, one end of the string-like member 3 is connected to the ornamental body 2, and the other end is configured to be connectable to or separable from the ornamental body 2. The string-like member 3 is formed, for example, of a chain, wire, or string. A male member 6 is provided at the other end of the string-like member 3, and when this male member 6 is inserted into the female member 5 embedded in the ornamental body 2, both ends of the string-like member 3 are connected to each other via the ornamental body 2. When the female member 5 and the male member 6 are connected, the main part is made heavy, and this weight allows it to be positioned in front of the wearer. The ornamental body 2 is a gemstone, a piece of wood, a pearl, an ore, a colored stone, or the like.

First Embodiment
Figures 3 and 4 illustrate a fastener 4 according to one embodiment of the present disclosure. Figure 3 is a perspective view of the fastener 4 according to the first embodiment of the present disclosure, and Figure 4 is a cross-sectional view of the fastener 4 taken along line A-A in Figure 3. Figure 4 also shows a state in which a male member 6 is inserted into a female member 5 of the fastener 4.

In FIG. 3, the female member 5 is approximately shaped like an elliptical truncated cone. The female member 5 has a tapered shape with the end surface inclined toward the axis. A through hole 32 is formed in the end surface 31 of the female member 5a, which forms the base of the elliptical truncated cone, and this through hole 32 is provided so as to be exposed on the surface of the decorative body 2 (FIG. 1 or 2). The through hole 32 can be shaped and sized to reliably insert the male member 6 into the female member 5 and hold it inside the female member 5.

In the example of FIG. 3, the through hole 32 includes a first portion 32 ₁ and a second portion 32 ₂ having a smaller diameter than the first portion 32 _1. The second portion 32 ₂ is connected to the first portion 32 _1. The first portion 32 ₁ has a dimension that allows the head 37 of the male member 6 to be inserted and removed, and the inner diameter ld of the first portion 32 ₁ is set to be slightly larger than the diameter lh of the head 37 of the male member 6. The inner diameter ls in the short side direction of the through hole second portion 32 ₂ is a dimension that holds the head 37 of the male member 6 in the housing 34 and does not allow the head 37 to be inserted and removed, and is set to be smaller than the diameter lh of the head 37 of the male member 6. Therefore, the head 37 of the male member 6 can pass through the through hole first portion 32 ₁ but cannot pass through the through hole second portion 32 ₂ .

3, the male member 6 is provided with a head 37 and a knob 33 for the wearer to operate. The diameter lt of the tip of the knob 33 on the head 37 side is smaller than the inner diameter ld of the first through-hole portion _32-1 and the inner diameter ls of the second through-hole portion _32-2 . Therefore, the knob 33 can pass through both the first through-hole portion _32-1 and the second through-hole portion _32-2 , and the wearer can operate the knob 33 to move the head 37 between the first portion _32-1 and the second through-hole portion _32-2 . The knob 33 of the male member 6 is made of, for example, metal or resin.

Figure 4 is a cross-sectional view of the fastener 4 taken along line A-A in Figure 3. As shown in Figure 4, the female member 5 comprises a hollow housing 34 and one elastic member 35 provided inside the housing 34.

The base t1 of the elastic member 35 is rotatably mounted on the tapered tip surface 40 inside the housing 34. The base t1 of the elastic member 35 may be connected to the tip surface 40 of the housing 34 by welding or adhesive, or may be connected to the housing 34 by a fastener 38.

The tip t2 of the elastic member 35 is not fixed inside the housing 34, but is configured to be movable inside the housing 34 with the base t1 of the elastic member 35 as a support point. The elastic member 35 is a member that stores elastic energy when subjected to a compressive load. The elastic member 35 is, for example, a compression coil spring, and may have a hook formed on one side. The base t1 of the elastic member 35 may be a hook connected by a fixing device 38, and the tip t2 may be a straight one-sided compression coil spring.

As shown in FIG. 4, the fixing device 38 is, for example, a rivet that tightens the base t1 of the elastic member 35. By using a rivet as the fixing device 38, the tip of the elastic member 35 can be moved in one direction, i.e., in the longitudinal direction of the end face 31 of the housing 34, and the movement of the elastic member 35 in the lateral direction of the end face 31 of the housing 34, which is perpendicular to the longitudinal direction of the end face 31, can be restricted. The movement of the elastic member 35 in the lateral direction of the end face 31 of the housing 34 may be restricted by the inner surface of the housing 34.

The housing 34 is provided with a protrusion 39 that is inscribed in the wall surface of the housing 34 surrounding the through hole 32. The protrusion 39 extends in the penetrating direction of the through hole 32, i.e., toward the inside of the housing 34. The protrusion 39 is provided on the inner wall surrounding the through hole 32, between a first position of the through hole first portion _32-1 and a second position of the through hole second portion _32-2 . The movement of the elastic member 35 and the head 37 of the male member 6, and the movement of the elastic member 35 within the housing 34 are locked by the protrusion 39.

A protrusion 44 may also be provided at the tip of the head 37 of the male member 6. This protrusion 44 is configured to fit into the tip t2 (e.g., a hole provided at the tip) of the elastic member 35 when the elastic member 35 is pressed down. When the elastic member 35 is a coil spring, this hole is inside the coil spring. When the male member 6 is pressed against the elastic member 35, this protrusion 44 fits into the tip t2 of the elastic member 35, making it easier for the tip t2 of the elastic member 35 and the head 37 to move together. In other words, the protrusion 44 provided at the tip of the head 37 can prevent the tip t2 of the elastic member 35 from coming off the head 37 when the head 37 is moved.

Next, the method for connecting the male member 6 and the female member 5 of the fastener 4 will be explained using Figure 5.

(Connection between male member 6 and female member 5)
Figure 5 shows a series of operations for connecting the male member 6 and the female member 5 in the fastener 4. (1) to (7) in Figure 5 each show a cross-sectional view of the fastener 4 taken along line A-A in Figure 3, and the male member 6 and the female member 5 are connected in the steps shown in (1) to (7).

The sequence of operations for connecting the male member 6 and the female member 5 is as follows:

First, as shown in FIG. 5A, a wearer (not shown) holds the knob portion 33 of the male member 6 and inserts the head portion 37 into the first position of the through-hole first portion ₃₂₁ .

Next, as shown in FIG. 5 (2), the head 37 of the male member 6 is pushed into the housing 34 against the spring force of the elastic member 35.

As shown in Fig. 5 (3), when the depth of the pressed head 37 exceeds the height of the protrusion 39 provided on the inner wall of the housing 34, the male member 6 can slide along the inner wall of the through hole 32 from the first position of the through hole first portion _32-1 to the second position of the narrower through hole second portion _32-2 while pressing the elastic member 35 against the spring force of the elastic member 35. The wearer moves the knob portion 33 from the through hole first portion _32-1 to the through hole second portion _32-2 as shown in Fig. 5 (4) and (5). Note that Fig. 5 (4) shows the head 37 transparently in order to illustrate the relationship between the protrusion 39 and the head 37 of the male member 6.

Next, as shown in Fig. 5(6), when the head 37 is moved beyond the tip of the projection 39 and the pressure on the elastic member 35 ceases at the second position of the through-hole second portion _32-2 , the head 37 is locked to the inner wall of the end face 31 of the housing 34 by the action of the restoring force of the elastic member 35, as shown in Fig. 5(7), and the connection is completed. In the connected state, the projection 39 can limit the movement of the head 37 from the second position of the second portion _32-2 to the first position of the first portion _32-1 . Therefore, the connected state between the head 37 and the housing 34 can be maintained.

According to the present disclosure, the male member 6 can be inserted from a first position in the through hole first portion _32-1 along the inner wall of the through hole first portion _32-1 while pressing the elastic member 35 against the spring force of the elastic member 35. When the depth of the head 37 of the pressed male member 6 exceeds the height of the protrusion 39 provided on the inner wall of the housing 34, the male member 6 can slide along the inner wall of the through hole 32 from the first position in the through hole first portion _32-1 to a second position in the narrower through hole second portion _32-2 .

Furthermore, according to the present disclosure, after the male member 6 (head 37) passes over the tip of the protrusion 39 and is no longer pressed at the second position of the through-hole second portion _32-2 , the head 37 of the male member 6 is pressed against the inner wall of the housing 34 by the action of the restoring force of the elastic member 35, and is locked inside the housing. This connects the male member 6 and the female member 5.

Next, the series of operations for separating the male member 6 and the female member 5 of the fastener 4 will be explained using FIG. 6.

(Separation of male member 6 and female member 5)
By reversing the series of operations for connecting the male member 6 and the female member 5, the wearer can separate the male member 6 and the female member 5. Figures 6 (1) to (7) each show a cross-sectional view of the fastener 4 as viewed from the direction of line A-A in Figure 3, and the male member 6 and the female member 5 are separated according to the procedures shown in Figure 6 (1) to (7).

First, from the state shown in Fig. 6(1), a wearer (not shown) holds the knob portion 33 of the male member 6 and pushes the head 37 into the housing 34 against the spring force of the elastic member 35, and pulls the head 37 away from the inner wall of the housing 34 as shown in Fig. 6(2). Next, from the state shown in Fig. 6(2), the head 37 is pushed in until it exceeds the height of the protrusion 39 provided on the inner wall of the housing 34, and the head 37 is moved to pass the tip of the protrusion 39 as shown in Fig. 6(3) and (4). The knob portion 33 is moved from the second position of the through hole second portion _32-2 toward the first position of the through hole first portion _32-1 , and the head 37a passes the tip of the protrusion 39a and advances to the first position of the through hole first portion _32-1 as shown in Fig. 6(5). Next, as shown in Fig. 6(6), when the head 37 stops being pressed against the elastic member 35 with the first portion _32-1 in the first position, the head 37 is pushed up by the action of the restoring force of the elastic member 35. Thereafter, as shown in Fig. 5(7), the wearer removes the head 37 from the through-hole first portion _32-1 of the housing 34, completing the separation of the male member 6 and the female member 5.

Second Embodiment
7 and 8 illustrate a fastener 4a according to a second embodiment of the present disclosure, with Fig. 7 being a perspective view of the fastener 4a according to the second embodiment of the present disclosure, and Fig. 8 being a cross-sectional view of the fastener 4a as viewed from the longitudinal line B-B direction in Fig. 7.

As shown in FIG. 7, the female member 5a has a generally elliptical cylindrical shape. A through hole 32a is formed in the end face 31a of the female member 5a. The through hole 32a can be shaped and sized to reliably insert the male member 6a into the female member 5a and hold it inside the female member 5a.

The through hole 32a includes a first through hole portion _32a1 and a second through hole portion _32a2 . The inner diameter ld of the first through hole portion _32a1 is a dimension that allows the head 37a of the male member 6a to be inserted and removed, and is set to be slightly larger than the diameter lh of the head 37a of the male member 6a. The inner diameter ls of the second portion _32a2 in the short side direction is a dimension that holds the head 37a of the male member 6a in the housing 34a and does not allow the head 37a to be inserted and removed, and is set to be smaller than the diameter lh of the head 37a of the male member 6a. Therefore, the head 37a of the male member 6a can pass through the first portion _32a1 but cannot pass through the second through hole portion _32a2 .

7, the male member 6a is provided with a knob 33a, which allows the wearer to manipulate the position of the male member 6. The diameter lt of the tip of the knob 33 on the head 37a side is smaller than the inner diameter ld of the first through-hole portion _32a1 and the inner diameter ls of the second through-hole portion _32a2 . Therefore, the knob 33a can pass through both the first through-hole portion _32a1 and the second through-hole portion _32a2 .

Fig. 8 is a cross-sectional view of the fastener 4a taken along line B-B in Fig. 7. As shown in Fig. 8, the female member 5a comprises a housing 34a, an elastic member 35a (elastic member _35a1 and elastic member _35a1 ) provided inside the housing 34a, and an end plate 36 supported by the elastic member _35a1 and elastic member _35a1 and provided inside the housing 34a. Hereinafter, when there is no need to distinguish between the elastic member _35a1 and the elastic member _35a2 , they may be simply referred to as the elastic member 35a.

In this embodiment, the elastic member 35a only needs to be configured to support the end plate 36, and two or more elastic members 35a can be housed in the housing 34a. This differs from the first embodiment in which one elastic member 35 is housed in the housing 34. In the example of Fig. 8, two elastic members 35a (elastic member _35a1 , elastic member _35a2 ) are housed. By housing a plurality of elastic members 35a in the housing 34a, the end plate 36 can be stably supported.

In the example of FIG. 8, one elastic member _35a1 is provided in the housing 34a facing the through-hole first portion _32a1 , and the other elastic member _35a2 is provided in the housing 34a facing the through-hole second portion _32a2 .

The base t1 of the elastic member 35a is fixed inside the housing 34a. The base t1 of the elastic member 35a is connected to or supported by the bottom surface 40a inside the housing 34a. The bottom surface 40a faces the end surface 31a of the housing 34a. The base t1 of the elastic member 35a may be connected to the inner bottom surface of the housing 34a by welding or adhesive, or the base t1 of the elastic member 35a may be supported by being fitted into a protrusion 42 provided inside the bottom surface of the housing 34a.

The tip t2 of the elastic member 35a is configured to contact the end plate 36 and support the end plate 36. The tip t2 of the elastic member 35a may be connected to the end plate 36 by welding or adhesive, or the tip t2 of the elastic member 35a may be fitted into a protrusion 41 provided on the end plate 36 and supported. The tip t2 of the elastic member 35a is configured to be movable in the axial direction within the housing 34 in response to the movement of the end plate 36.

The housing 34a is provided with a protrusion 39a inscribed in the wall surface of the housing 34a surrounding the through hole 32a. The protrusion 39a extends in the penetrating direction of the through hole 32a, i.e., toward the inside of the housing 34a. The protrusion 39a is provided on the inner wall surrounding the through hole 32a, between a first position of the through hole first portion 32a- ₁ and a second position of the through hole second portion 32a _-2 . The movement of the head 37a of the male member 6a within the housing 34a is stopped by the protrusion 39a.

Next, the method for connecting the male member 6a and the female member 5a will be explained using Figure 9.

(Connection between male member 6a and female member 5a)
Fig. 9 shows a method for connecting the male member 6a and the female member 5a in the fastener 4a. (1) to (4) in Fig. 9 show cross-sectional views of the fastener 4a taken along line B-B in Fig. 7, and the male member 6a and the female member 5a are connected in the steps shown in (1) to (4).

First, as shown in FIG. 9(1), a wearer (not shown) holds the knob portion 33a of the male member 6a and inserts the head portion 37a into the first position of the through-hole first portion _32a1 .

Next, as shown in Fig. 9(2), the head 37a of the male member 6a is pushed into the housing 34a of the female member 5a against the spring forces of the elastic members _35a1 and _35a2 . The head 37a pushes the end plate 36, and when the head 37a exceeds the height of the protrusion 39a inscribed in the housing 34a, the wearer slides the male member 6a on the end plate 36 along the inner wall of the through hole 32a from the state shown in Fig. 9(2). The knob portion 33a is moved from the through hole first portion _32a1 toward the narrower through hole second portion ₃₂₂ .

Next, as shown in Fig. 9(3), the knob portion 33a moves, and the head 37a passes over the tip of the protrusion 39a and moves to the second position of the second through-hole portion _32a2 . When the head 37a stops pressing the elastic members _35a1 and _35a2 at the second position, the head 37a is locked to the inner wall of the end surface 31a of the housing 34a by the action of the restoring force of the elastic member 35a, and the connection is completed, as shown in Fig. 9(4). Note that the contact area of the male member 6a with the end plate 36 may be reduced so that the male member 6a can slide easily on the end plate 36. For example, a convex portion may be provided at the tip of the male member 6a, or the tip of the male member 6a may be hemispherical or the like.

Next, the series of operations for separating the male member 6a and the female member 5a of the fastener 4a will be explained using Figure 10.

(Separation of male member 6a and female member 5a)
By performing the above-mentioned series of actions for connecting the male member 6a and the female member 5a in reverse, the wearer can separate the male member 6a and the female member 5a. Figure 10 (1) to (4) each show a cross-sectional view of the fastener 4a as seen from the line B-B direction in Figure 8, and the male member 6a and the female member 5a are separated in the steps shown in (1) to (4).

First, from the state shown in Fig. 10(1), a wearer (not shown) holds the knob 33a of the male member 6a and pushes the head 37a into the housing 34a against the spring force of the elastic members _35a1 and _35a2 , and pulls the head 37a away from the inner wall of the housing 34a as shown in Fig. 10(2). Next, from the state shown in Fig. 10(2), the head 37a is pushed in until it exceeds the height of the protrusion 39a provided on the inner wall of the housing 34a, and is moved until it exceeds the tip of the protrusion 39a as shown in Fig. 10(3). The knob 33a is moved from the second position of the through-hole second portion _32a2 toward the first position of the through-hole first portion _32a1 . As shown in Fig. 10(3), when the head 37a is at the first position of the first through-hole portion _32a1 beyond the tip of the protrusion 39a and the pressure against the elastic member _35a1 and the elastic member _35a2 ceases, the restoring force of the elastic member 35a pushes the head 37a up via the end plate 36. Next, as shown in Fig. 10(4), the wearer can pull out the head 37a from the first through-hole portion _32a1 of the housing 34a, completing the separation of the male member 6a and the female member 5a.

According to the present disclosure, the wearer can connect the male member 6 (6a) and the female member 5 (5a) with a simple operation of pushing and inserting the male member 6 (6a) into the female member 5 (5a) and sliding it in one direction. This connects both ends of the string-like member 3 via the ornamental body 2. In addition, the male member 6 (6a) can be separated from the female member 5 (5a) by pushing the male member 6 (6a) into the female member 5 (5a) and sliding it in the opposite direction to remove the male member 6 (6a) from the female member 5 (5a). With these simple operations, the wearer can connect the ornamental body 2 and the male member 6 (6a) to hang the necklace 1 around his neck, or separate the ornamental body 2 and the male member 6 (6a) to remove the necklace 1 from his neck.

Furthermore, according to the present disclosure, the wearer can put on and take off the necklace 1 in a visible position on the front of the neck. The wearer can grasp the direction in which to slide the knob portion 33 (33a) of the male member 6 (6a) while looking at the shape of the through hole 32 (32a) in the ornamental body 2. This makes it easy for the wearer to put on and take off the necklace 1.

Furthermore, according to the present disclosure, the number of parts constituting the fastener 4 (4a) is small, and the structure of the fastener 4 (4a) is simple. Furthermore, the parts constituting the fastener 4 (4a) do not have elaborate grooves, etc., and the parts can be manufactured by casting, which has low manufacturing costs. This allows the manufacturing costs to be reduced.

1: Necklace 2: Accessory 3: String-like member 4, 4a: Clasp 5, 5a: Female member 6, 6a: Male member 32, 32a: Through hole 34, 34a: Housing 35, 35a: Elastic member 36: End plate 37, 37a: Head 38: Fixing member 39, 39a: Protrusion

Claims (9)

A fastener for an ornament, comprising:
A male member and a female member,
The male member has a head,
The female member is
A housing having a through hole;
a resilient member disposed within the housing;
The head portion comprises:
The through hole is inserted into the housing at a first position to press down the elastic member;
The through hole is engaged in the housing at a second position by a restoring force of the elastic member,
A fastener configured to be movable from the first position to the second position with the elastic member pressed down. The elastic member includes a base portion pivotally mounted on the tapered tip of the housing,
The fastener according to claim 1 , wherein the head is configured to be movable from the first position to the second position while rotating the base. The female member further includes a protrusion that is inscribed in the housing surrounding the through hole and protrudes in a direction of penetration of the through hole,
The fastener of claim 1 , wherein movement of the head inserted inside the housing is locked against the protrusion. The fastener according to claim 3, wherein the head exceeds the tip of the protrusion when moving from the first position to the second position. The fastener according to claim 4, wherein the protrusion is provided between the first position and the second position. The fastener according to claim 2, wherein the base of the elastic member is connected to the housing by a rivet provided at the tapered tip of the housing. The fastener according to claim 1, wherein the protrusion of the head is configured to fit onto the tip of the elastic member when the elastic member is pressed down, and the head is configured to be movable together with the tip of the elastic member from the first position to the second position. The fastener according to claim 1, wherein the first position of the through hole is in a first portion of the through hole that allows the head to be inserted and removed, and the second position of the through hole is in a second portion of the through hole that is smaller in diameter than the first portion and does not allow the head to be inserted and removed. The fastener according to any one of claims 1 to 8, wherein the female member is embedded in an ornament connected to one end of a string-like member of a necklace.