JP3000114U - Necklace end connection mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] Necklace end connection mechanism that is extremely easy to put on and take off the necklace and does not impair the commercial value of the necklace. [Structure] The first connecting member 28 having the spherical body 38 opens and closes the necklace 12. The second connecting member 30 that is connected to the member 18 and includes the seal ring 62 that can be engaged with and disengaged from the spherical body 38.
The necklace 12 is attached to the necklace 12 by the annular member 44 provided for itself.
Is connected to the marking plate 20 of FIG. The spherical body 38 is passed through the seal ring 62 and the through holes 56a and 58a, and the first
By connecting the connecting member 28 and the second connecting member 30,
A closed annular body can be formed that includes the necklace 12. The operation of attaching / detaching the necklace 12 to / from the body is simple and it is not necessary to replace the marking plate 20 with another member, so that the commercial value of the necklace 12 is not impaired.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a necklace end connecting mechanism for attaching and detaching a necklace to and from a body.

[0002]

[Prior art]

 As illustrated in FIG. 7, in the necklace 200, a plate-shaped perforated member 204 having a hole portion 204a is attached to one end of a chain-shaped or flexible braid-shaped necklace chain 202, and the other end thereof. An opening / closing member 206 for opening / closing a part 206a of the annular portion by moving the movable rod 205 in the directions of arrows P and Q is attached. Normally, the hole portion 204a of the perforated member 204 and the opening / closing member 206 are engaged with each other to form the necklace 200 in a closed ring shape, which is attached to, for example, the neck.

However, since the perforated member 204 and the opening / closing member 206 are extremely small, opening / closing operation of the opening / closing member 206 and engagement operation of the opening / closing member 206 and the perforated member 204 may be difficult. Therefore, for example, by replacing one of the perforated member 204 and the opening / closing member 206 with a member having a magnet and the other with a magnetic material and joining the two with a magnetic force to make the necklace a closed ring, a simple operation is possible. A connection mechanism that allows the necklace to be attached and detached has been proposed.

[0004]

[Problems to be solved by the device]

 However, a certification mark indicating the quality of the necklace, such as 14K or 18K, is stamped on the perforated member 204, and as described above, the perforated member 204 and the opening / closing member 206 are connected to other types of connecting tools or the like. Replacing with will result in loss of necklace proof of quality. Necklaces without stamps of quality certification cannot be recognized for their commercial value in precious metal trading, so such necklaces lose their value as property. In other words, the method of replacing the perforated member 204 and the opening / closing member 206 with another type of connecting tool or the like inevitably causes a contradiction that the property value of the necklace is lost even if the necklace is easily attached and detached.

Further, the perforated member 204 and the opening / closing member 206 are made of the same material as the necklace except for the blades inserted in the opening / closing member. For example, if a magnet is used, the quality test cannot be obtained. Furthermore, since elasticity, strength, etc. are insufficient for gold, gold alloys, platinum, etc., it is difficult to manufacture a coupling mechanism that can be engaged and disengaged by elastic deformation. It was not possible to manufacture an easy-to-operate connecting mechanism using the same material as the necklace.

[0006]

[Means for Solving the Problems]

 The necklace end connecting mechanism according to claim 1, which is made to solve this problem, comprises: first and second connecting members that can be connected / separated from each other; An annular member connected to one of the member and the second connecting member, and the other of the first connecting member and the second connecting member is provided with an engaging / disengaging portion having an engaging hole. It is detachably connected to the hole portion of the perforated member provided at one end through the annular member, and a part of the annular portion provided at the other end of the necklace is opened and closed to open the perforated member. An opening / closing member that engages and disengages with the hole is detachably connected through the engaging hole, and when the first connecting member and the second connecting member are connected, a closed annular body including the necklace is formed. It is possible.

Next, the necklace end connection mechanism according to claim 2 is the necklace end connection mechanism according to claim 1, wherein one of the first connection member and the second connection member has the engagement portion. A plate-shaped substrate and a spherical body, a part of which is fixed to the substrate, are provided, and a through hole through which the equatorial portion of the spherical body can pass and the through hole are provided on the other of the first connecting member and the second connecting member. A seal ring which is arranged substantially coaxially with the hole and elastically deforms between a contracted state in which the outer diameter of the equatorial portion of the spherical body is less than the inner diameter and an expanded state in which the inner diameter is equal to or larger than the outer diameter of the equatorial portion. Is provided.

A necklace end connection mechanism according to a third aspect is the plate-shaped necklace end connection mechanism according to the first aspect, wherein one of the first connection member and the second connection member has the engagement / disengagement portion. And a magnet fixed to the substrate, and the other of the first connecting member and the second connecting member is a magnetic body.

A necklace end connection mechanism according to a fourth aspect is the necklace end connection mechanism according to the third aspect, further comprising the first connection member and / or the second connection member. When the first connecting member and the second connecting member are magnetically joined to each other, the first holding member and the second holding member are engaged with a part of the first connecting member or the second connecting member which is a counterpart. It is characterized in that a locking portion for restricting a sliding displacement with respect to is provided.

Further, the necklace end connecting mechanism according to claim 5 is the neckless end connecting mechanism according to claim 4, wherein the bank portion protruding from the base plate by more than the protruding height of the magnet from the base plate. Is provided along the side edge of the magnet.

[0011]

[Action]

 In the necklace end connecting mechanism having the above structure, one of the first connecting member and the second connecting member is detachably connected to the hole of the perforated member provided at one end of the necklace via the annular member. The other of the first connecting member and the second connecting member is detachably connected to the opening / closing member provided at the other end of the neckless via the engaging hole. When the first connecting member and the second connecting member are respectively connected to the ends of the necklace in this manner, and then the first connecting member and the second connecting member are connected, a closed annular body including the necklace is formed. At this time, the necklace can be attached to the neck by turning the necklace around the neck and then forming the closed annular body. Further, the necklace can be removed from the neck by releasing the connection between the first connecting member and the second connecting member.

[0012] As described above, since it is not necessary to replace the perforated member originally attached to the necklace (the member with the certification mark engraved) with another part, it is possible to use this necklace end connecting mechanism. You will not lose the commercial value of the necklace. In this necklace end connecting mechanism, according to the structure of claim 2, the spherical body is pushed into the through hole and the seal ring, and the seal ring is pushed by the pressing force of the spherical body that has entered the seal ring. It causes elastic deformation in the direction of enlarging the inner diameter of. When the spherical body is further advanced and the equator of the spherical body passes through the seal ring, the pressing force of the spherical body is released and the seal ring is elastically deformed in the direction of reducing the inner diameter. Thus, the equatorial portion of the spherical body passes through the through hole and the seal ring, and the first connecting member and the second connecting member are engaged and connected to each other via the spherical body.

To separate the first connecting member and the second connecting member connected as described above, the spherical body is relatively moved in the opposite direction to the above. Then, the seal ring is pressed by the lower side of the equatorial portion of the spherical body in the same manner as in the above-described connecting operation, and elastically deforms in the direction of expanding the inner diameter. The spherical body pushes forward while expanding the seal ring. When the equator of the spherical body passes through the seal ring, the seal ring does not hinder the movement of the spherical body, and the engagement between the first connecting member 28 and the second connecting member 30 is released.

As described above, the spherical body can be connected only by pushing it against the seal ring, and the connection can be released only by the relative movement of the spherical body in the opposite direction. It is easy to operate the body and release it. Moreover, since the spherical body is engaged with the seal ring and the through hole, the possibility of separation during use is extremely low.

According to the third aspect of the invention, the closed annular body including the necklace can be formed only by joining the first connecting member and the second connecting member by the magnetic force of the magnet, so that the operation of fine parts can be performed. No special work is required, and the accessory can be easily attached. Next, a case where the configuration according to claim 4 is adopted will be described.

During use of the necklace, an external force that causes a sliding displacement between the first connecting member and the second connecting member may act. The sliding displacement referred to here is, for example, a displacement that changes the relative position of a pair of plate-shaped bodies that are in contact with each other along their joint surfaces, and in the joined state, between the magnet and the mating coupling member. This corresponds to a change in the relative position of the first connecting member and the second connecting member along the direction crossing the magnetic force lines. When the sliding displacement occurs, the joining due to the magnetic force is likely to be released, but in the neckless end connecting mechanism according to claim 4, the locking portion provided on both or one of the first and second connecting members and the counterpart. The sliding displacement is restricted by engaging with a part of the first or second connecting member. Therefore, even if such an external force is applied, the joined state of the necklace end connecting mechanism is prevented from being released, and there is no inconvenience that the joined state is released during use of the necklace. When the first connecting member and the second connecting member are joined together, it is not necessary for the magnet and the counterpart connecting member to come into direct contact with each other.

Further, according to the configuration of claim 5, the bank is shielded by the bank portion and the first or second connecting member, and the leakage magnetic flux can be reduced.

[0018]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. (Example 1) As shown in Fig. 1, a necklace end connecting mechanism 10 of this example is attached. A necklace 12 is a chain in which a plurality of rings 12a are connected, and a movable rod 14 is provided at one end. An opening / closing member 18 capable of opening and closing the cutout portion 16a provided in the annular portion 16 by moving in the directions R and S is fixed to the outermost ring 12a, and the other end of the necklace 12 is fixed. A marking plate 20 is connected to the. The marking plate 20 is connected to the outermost ring 12a of the neckless 12 through a ring hole 22 provided at one end, and a connecting hole 24 is provided at the other end of the marking plate 20. There is. The opening / closing member 18 and the marking plate 20 are originally for operating the movable rod 14 of the opening / closing member 18 to engage the opening / closing member 18 and the marking plate 20 to form the necklace 12 in a closed ring shape. Is.

Although not shown, the ring 12 a is a series of the opening / closing member 18 to the marking plate 20. Similarly, although not shown, the engraving plate 20 is engraved with a verification mark. A well-known pendent top (not shown) or the like can be attached to the necklace 12.

The necklace end coupling mechanism 10 of this embodiment includes a first coupling member 28 attached to the necklace 12 via the opening / closing member 18 and a second coupling member 30 attached to the necklace 12 via the marking plate 20. It is composed of. Hereinafter, both connecting members 28 and 30 will be described in detail.

The first connecting member 28 is provided with a substrate 34 having an engaging hole 32 that is engageable with the opening / closing member 18 at one end. Further, a spherical body 38, which is substantially spherical and is partially cut away to form a top portion 38a, is fixed to the substrate 34 via a fixing pin 36. The first connecting member 28 is entirely made of steel, and the surface thereof is nickel-plated.

On the other hand, the second connecting member 30, like the opening / closing member 18 described above, is provided with a notch portion 42 a provided in the ring body 42 by moving the movable rod 40 along the directions of arrows T and U. An annular member 44 that can be opened and closed is provided, and can be engaged with the connecting hole 24 of the marking plate 20 via the annular member 44. The movable rod 40 and the ring body 42 that form the annular member 44 are made of steel, and the surfaces thereof are nickel-plated.

The annular member 44 is connected to a connecting hole 50 provided in the cored bar 48 of the second connecting member 30 via a connecting ring 46 made of steel and having a surface plated with nickel. . As shown in FIG. 1B, the cored bar 48 includes an arm portion 52 having a connecting hole 50 and an annular ring portion 54, and is made of steel and has a surface plated with nickel. ing. The upper surface of the ring portion 54 is covered with a perforated disc-shaped upper cover 56 having a through hole 56 a, and the lower surface, side surface of the ring portion 54 and the peripheral portion of the upper cover 56 are covered with the lower cover 58. The lower cover 58 is provided with a through hole 58a having substantially the same diameter and coaxial with the through hole 56a of the upper cover 56. A space 60 is formed between the upper cover 56 and the lower cover 58, and an annular seal ring 62, a part of which is a cutout 62a, is accommodated in the space 60. The sealing ring 62 can be elastically deformed in a direction of enlarging or reducing the inner diameter thereof by applying an external force along the radial direction.

The inner diameter W of the through hole 56 a of the upper cover 56 and the through hole 58 a of the lower cover 58 is slightly larger than the outer diameter D of the equator portion 38 b of the spherical body 38 of the first connecting member 28, and the spherical body 38 can pass through. On the other hand, the inner diameter V of the seal ring 62 is usually smaller than the outer diameter D of the equatorial portion 38b of the spherical body 38, but as described above, the outer force along the radial direction is applied to the seal ring 62 to cause the inner diameter V to rise. Can be increased to an outer diameter D or more. The upper cover 56, the lower cover 58, and the seal ring 62 are all made of steel, and their surfaces are nickel-plated.

When the necklace 12 to which the necklace end connecting mechanism 10 is attached is worn around the neck, for example, the first connecting member 28 and the second connecting member 30 are separated from each other as in the conventional case. The necklace 12 is rotated around the neck, and then the top 38a side of the spherical body 38 of the first connecting member 28 is pushed into the through hole 58a of the second connecting member 30. That is, the first connecting member 28 is relatively moved along the arrow X from the state shown in FIG.

Due to the relative movement of the first connecting member 28, a part of the spherical body 38 of the first connecting member 28 passes through the through hole 58a and comes into contact with the seal ring 62. At this time, a part of the spherical body 38 on the side of the top portion 38 a is inserted into the seal ring 62. When the relative movement of the first connecting member 28 is further continued, the spherical body 38 exerts a pressing force on the seal ring 62 in a direction of enlarging its inner diameter, elastically deforms the seal ring 62, and pushes it forward to move forward. . When the equatorial portion 38b of the spherical body 38 passes through the inside of the seal ring 62, the pressing by the spherical body 38 is released, and the seal ring 62 elastically deforms in the direction of reducing the inner diameter. Thus, the equatorial portion 38b of the spherical body 38 passes through the through hole 56a, the seal ring 62, and the through hole 58a to engage and connect the first connecting member 28 and the second connecting member 30 (FIG. 2). reference).

Next, in order to separate the first connecting member 28 and the second connecting member 30 which are connected as described above, the first connecting member 28 is moved from the state of FIG. 2 in the arrow Y direction (second connecting member). The member 30 is relatively moved in the direction opposite to the arrow Y). Then, the seal ring 62 is pressed by the lower side of the equator portion 38b of the spherical body 38 (on the side of the fixing pin 36) in the same manner as in the above-described connecting operation, and elastically deforms in the direction of enlarging the inner diameter. The spherical body 38 advances while spreading the seal ring 62. When the equatorial portion 38b of the spherical body 38 passes through the seal ring 62, the seal ring 62 does not hinder the movement of the spherical body 38, and the engagement between the first connecting member 28 and the second connecting member 30 is released. .

As described above, the first connecting member 28 and the second connecting member 30 can be connected to each other only by relatively moving the first connecting member 28 and the second connecting member 30. The connection can be released simply by moving it. Therefore, if the necklace end connecting mechanism of this embodiment is used, the necklace 12 can be attached / detached by a simple operation without requiring special work such as operation of fine parts. Moreover, since it is not necessary to replace the stamp plate 20 of the necklace 12 with another member, the commercial value of the necklace 12 is not impaired. (Example 2) The necklace end connecting mechanism 110 of this embodiment is used by being attached to a necklace like the necklace end connecting mechanism 10 of Example 1, but the necklace itself is the same as that illustrated in Example 1. Since it is the same, its illustration and description are omitted.

As shown in FIG. 3, the necklace end connecting mechanism 110 of this embodiment includes a first connecting member 128 attached to the opening / closing member of the necklace and a second connecting member 130 attached to the marking plate of the necklace. It is configured. The connecting members 128 and 130 will be described in detail below.

As shown in FIG. 3, the first connecting member 128 includes a steel substrate 134 having a connecting hole 132 at one end, and the connecting ring 132 has a connecting ring 138 in the connecting hole 132 via a chain 136. Is attached. As shown in FIGS. 3, 4 and 5, from the vicinity of the center of the substrate 134 to the end facing the connection hole 132, both edge portions are formed so that the cross section has a U shape (see FIG. 5). Is bent to form a pair of bank portions 140, 140. A rare earth magnet 142 whose surface is coated with a nickel plating layer 142a is arranged between the bank portions 140 and 140, and the rare earth magnet 142 and the substrate 134 are fixed to each other with an adhesive. Further, as shown in FIGS. 3 and 5, the protruding height of the bank portion 140 from the substrate 134 is slightly larger than the thickness of the rare earth magnet 142, and the step t is secured.

As shown in FIG. 3, the second connecting member 130 has a plate shape made of steel and has a connecting hole 144 at one end, and an annular member 148 is attached to the connecting hole 144 via a chain 146. . The annular member 148 is provided with a movable rod 150 that can reciprocate in the directions of arrows G and H, and a notch provided in the ring 152 by moving the movable rod 150 in the directions of arrows G and H. The part 152a can be opened and closed.

As shown in FIGS. 3 and 4, a pair of locking claws 156 and 156 formed by bending the projecting portion at about 90 degrees are provided at the other end of the second connecting member 130. The distance between the locking claws 156 and 156 is substantially the same as the distance between the bank portions 140 and 140 of the first connecting member 128, and as shown in FIG. 3, the first connecting member 128 and the second connecting member 130. When the and are joined, the locking claws 156 and 156 are projected and drooped from the end portions 140a and 140a of the bank portions 140 and 140. Further, at that time, as shown in FIG. 5, a gap corresponding to the step t is formed between the second connecting member 130 and the rare earth magnet 142.

When the necklace to which the necklace end coupling mechanism 110 is coupled is mounted around the neck, for example, the first coupling member 128 and the second coupling member 130 are separated from each other as in the conventional necklace. By moving the first connecting member 128 and the second connecting member 130 to each other by moving the first connecting member 128 and the second connecting member 130 to each other by the magnetic force of the rare earth magnet 142. By joining, the first connecting member 128, the second connecting member 130, and the necklace form a closed annular body. To remove the necklace attached to the neck, for example, the first connecting member 128 and the second connecting member 130 may be held by fingers, respectively, and a force may be applied in a direction to separate them. As described above, when the necklace end connecting mechanism 110 is used, no special work such as operation of fine parts is required for attaching and detaching the neckless, and the attaching and detaching can be easily performed. Also, since it is not necessary to replace the stamp plate of the necklace with another material, the commercial value of the necklace will not be impaired.

As described above, although it is easy to put on and take off, the necklace may be caught on some obstacle during use. In such a case, the external force acting on the necklace is a force that causes sliding displacement between the first connecting member 128 (rare earth magnet 142) and the second connecting member 130 along the directions of arrows A and B shown in FIG. To work. Even if such an external force acts, the locking claws 156 and 156 contact the end portions 140a and 140a of the bank portions 140 and 140, so that the sliding displacement due to the external force is regulated. Therefore, even if a slight sliding displacement occurs between the first connecting member 128 and the second connecting member 130, no further sliding displacement occurs. Therefore, the first connecting member 128 (rare earth magnet 142 is generated by the external force acting on the neckless member. ) And the second connecting member 130 are not released from the joined state. Therefore, even if some external force is applied while using the necklace, the necklace will not fall off the neck, for example.

Further, as shown in FIGS. 3 and 5, since the nickel plating layer 142a is provided on the surface of the rare earth magnet 142, the components of the magnet such as samarium, cobalt, and neodymium and the skin are directly contacted with each other. There is no contact. Similarly, for example, sweat does not react with a magnet component such as samarium, cobalt, or neodymium in contact with it. Therefore, there is no possibility that samarium, cobalt, neodymium, etc., which are the components of the rare earth magnet 142, will roughen the skin.

Moreover, since the bank 140 prevents direct contact between the rare earth magnet 142 and the second connecting member 130, there is no possibility that the surface of the rare earth magnet 142 is damaged by such contact. In order to obtain this effect, the height of the bank portion 140 does not have to be less than the thickness of the rare earth magnet 142. Therefore, the gap t shown in FIG. 3 may be zero. Further, if a non-magnetic protective member is attached to the space t, the magnet surface can be protected more effectively. At this time, as shown in FIG. 6, the surface 155 of the rare earth magnet 142 excluding the bottom surface 155a can be covered with a non-magnetic box-shaped cap 157. When the cap 157 is used in this way, the protection member (= cap 157) is attached to the rare earth magnet 142 more reliably, and the effect of surface protection is also improved.

Further, as shown in FIGS. 3 and 5, when the necklace end connecting mechanism 110 is used (the first connecting member 128 and the second connecting member 130 are joined to each other), the rare earth magnet 142 is surrounded. Is surrounded by the base plate 134 of the first connecting member 128, the bank portions 140 and 140, and the second connecting member 130 except for the end faces 142b and 142c. As is well known, since the magnetic field lines have a property of easily passing through a portion having a higher magnetic permeability, the magnetic field lines generated from the N pole of the rare earth magnet 142 pass through the second connecting member 130 → bank 140, 140 → substrate 134. And reach the south pole. Therefore, if the plate thickness of the above member is set to a value that does not cause magnetic saturation, the effect of preventing leakage flux will be sufficient. Although this plate thickness depends on the performance of the magnet used, it is 0.1 mm or more, preferably 0. 5 mm or more is sufficient. As shown in FIG. 3, when the end surface 142b of the rare earth magnet 142 is set back from the end portions 140a and 140a of the bank portions 140 and 140, the effect of reducing the leakage magnetic flux becomes large. In the example shown in FIG. 3, the other end surface 142c of the rare-earth magnet 142 is not set back from the bank portions 140, 140, but if this end surface 142c is also set back, the leakage flux can be further reduced. However, even if the rare earth magnet 142 is surrounded by the substrate 134, the bank portions 140, 140, and the second connecting member 130 of the first connecting member 128 as described above, the effect of preventing the leakage magnetic flux is sufficiently exerted, which is a practical problem. Does not mean

Although the attachment mechanism for accessory of the present invention has been described according to the embodiments, the present invention is not limited to these embodiments and can be variously implemented without departing from the scope of the present invention. . For example, in the second embodiment, the first connecting member is provided with a magnet and the second connecting member is made of steel, but the second connecting member is provided with a magnet and the first connecting member is a magnetic body. Magnets may be provided on both of the connecting members. In addition to steel, magnetic stainless steel or the like can be used as the magnetic material. As the magnet, a well-known magnet such as a ferrite magnet can be used in addition to the rare earth magnet.

[0039]

[Effect of device]

 As described above, using the necklace end connecting mechanism of the present invention makes it very easy to attach and detach the neckless, and does not impair the commercial value of the necklace.

In this necklace end connecting mechanism, when the structure according to claim 2 is adopted, the first connecting member and the second connecting member can be connected and released by the pushing operation and the pulling operation of the spherical body. The operation of connecting the ends of the to form a closed annular body and the operation of releasing this are simple. Moreover, since the spherical body is engaged with the seal ring and the through hole, there is very little risk of separation during use.

Next, according to the third aspect of the invention, the closed annular body including the necklace can be formed only by joining the first connecting member and the second connecting member by the magnetic force of the magnet. No special work such as operation is required, and the accessory can be easily attached. Further, in the case of the structure according to claim 4, when the necklace is used, even if an external force that causes a sliding displacement is generated between the first connecting member and the second connecting member, It is possible to prevent the joining state with the second connecting member from being released.

Further, according to the configuration of the fifth aspect, the magnet is shielded by the bank portion and the first or second connecting member, and the leakage magnetic flux can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory view of a configuration of a necklace end portion connecting mechanism of Embodiment 1, FIG. 1 (a) is a partial vertical cross-sectional plan view,
(B) is a cross-sectional view near the seal ring of the second connecting member.

FIG. 2 is a front view of the necklace end coupling mechanism of the first embodiment in a coupled state.

FIG. 3 is a partial cross-sectional view illustrating the configuration of the necklace end portion connection mechanism according to the second embodiment.

4A and 4B are explanatory views of a main part of the necklace end connecting mechanism of the second embodiment, FIG. 2A is a plan view of a first connecting member, and FIG. 2B is a plan view of a second connecting member. is there.

FIG. 5 is a cross-sectional view showing a state in which a first connecting member and a second connecting member are joined in the necklace end portion connecting mechanism of the second embodiment.

FIG. 6 is a cross-sectional view of an example in which the surface of the rare earth magnet is covered with a box-shaped cap of a non-magnetic material in the necklace end coupling mechanism of the second embodiment.

FIG. 7 is an explanatory diagram of a necklace.

[Explanation of symbols]

10, 110 ... Necklace end connection mechanism, 12 ...
-Necklace, 16 ... Annular part, 18 ... Opening / closing member, 20 ... Engraving plate (perforated member), 24 ...
Connection holes (holes), 28, 128 ... First connection member, 3
0, 130 ... Second connecting member, 32 ... Engaging hole (engaging / disengaging portion), 34 ... Substrate, 38 ... Spherical body, 38b.
..Equatorial parts, 42, 152 ... Rings, 44, 148
... Annular member, 56a ... Through hole (through hole portion), 5
8a ... through hole (through hole portion), 60 ... void (through hole portion), 62 ... seal ring, 132 ... connecting hole (engaging / disengaging portion), 134 ... substrate, 136. ..Chain (engagement part), 138 ... Connection ring (engagement part), 140 ...
・ Bank portion, 142 ... Rare earth magnet (magnet), 156 ...
-Locking claw (locking part).

Claims (5)

[Scope of utility model registration request] 1. A first and a second which can be connected and separated from each other.
A connecting member and an annular member that is openable and closable in a part of the ring body and is connected to one of the first connecting member or the second connecting member are provided, and the other of the first connecting member or the second connecting member is By providing the engagement / disengagement portion having the engagement hole, the engagement / disengagement portion is detachably connected to the hole portion of the perforated member provided at one end of the necklace through the annular member, and is connected to the other end of the necklace. The first connecting member and the second connecting member are detachably connected through an engaging hole to an opening / closing member that opens and closes a part of the annular portion and engages and disengages with the hole portion of the mouthpiece member. A necklace end connecting mechanism capable of forming a closed annular body including the above necklace when the and are connected. 2. A plate-shaped substrate having the engaging / disengaging portion and a spherical body partially fixed to the substrate are provided on one of the first connecting member and the second connecting member, and the first connecting member is provided. Alternatively, a contracted state in which a through hole through which the equatorial portion of the spherical body can pass is disposed on the other side of the second connecting member, and the inner diameter is smaller than the outer diameter of the equatorial portion of the spherical body and is arranged substantially coaxially therewith. The necklace end connection mechanism according to claim 1, further comprising: a seal ring that elastically deforms between an enlarged state in which the inner diameter is equal to or larger than the outer diameter of the equator portion. 3. A plate-shaped substrate having the engaging / disengaging portion and a magnet fixed to the substrate are provided on one of the first connecting member or the second connecting member, and the first connecting member or the second connecting member. The necklace end connection mechanism according to claim 1, wherein the other of the members is a magnetic body. 4. The first connecting member, which becomes a counterpart when the first connecting member and the second connecting member are magnetically joined to both or one of the first connecting member and the second connecting member, or The necklace end portion according to claim 3, further comprising: a locking portion that locks with a part of the second connecting member to restrict a sliding displacement between the first holding member and the second holding member. Connection mechanism. 5. The necklace end part connecting mechanism according to claim 4, wherein a bank portion projecting from the substrate is provided at a height higher than the projecting height of the magnet from the substrate along the side edge of the magnet. .