JP3081242U - Jewelry fastener - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention provides a fastener for an accessory that can pull a chain connected to a pair of fastener components connected by magnetic force in a tension direction to align and separate a detachment arm. About. According to the invention, when a pair of fastener components are magnetically attached to each other, a chain connected to each of the fastener components is pulled in a tensioning direction and pivoted about a protruding shaft portion as a central axis, When the chains are aligned on the same straight line, a detaching arm is provided for each projecting so as to form a supplementary angle with respect to the straight line, and the pair of detaching arms are pressed against each other to resist magnetic force. And separating the fastener component.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 This invention relates to an improvement of a fastener that uses the magnetic force of a permanent magnet to endlessly connect a chain such as a necklace.

[0002]

[Prior art]

 When a chain such as a necklace is chained or a string is connected, a mechanically configured fastener has a disadvantage that the attaching and detaching operation is complicated. Therefore, a fastener using a permanent magnet has been conventionally known. For example, in the engagement device disclosed in Japanese Utility Model Laid-Open Publication No. 56-154012, a pair of dish-shaped case portions having mounting pieces protruding toward the outer side of the rising edge are provided in a pair, and a strong magnetic plate is provided in one of the case portions. A permanent magnet provided with an engagement hole from one side to the other as a lower surface is fixed so that the hole is exposed on the upper surface, and a ferromagnetic plate is fixed to the inner bottom surface in the other case portion, and these strong portions are fixed. A configuration is disclosed in which a ferromagnetic stick protruding from one of the magnetic plates is magnetically detachably attached to the other ferromagnetic plate via a hole in the permanent magnet. In the above configuration, the fitting of the case and the magnet and the mounting piece are provided at the same position to prevent external force such as leverage against the magnetically attached surface from being applied.How to separate the magnetically attached case It is necessary to twist the pair of opposing mounting pieces in the opposite direction and pull them apart against the magnetic force.For example, if the mounting piece is molded with a soft precious metal together with the case, use the above twisting operation. The mounting piece may be bent. In addition, in the fastener for jewelry disclosed in Japanese Patent Application Laid-Open No. 2000-41717, a pair of containers is provided with a hand-held ring in a vertical direction, and the hand-held ring is connected with the jewelry. It has to be arranged on the opposite side and separated from the magnetic force in the same manner as described above, which has the same problem.

[0003]

[Problems to be solved by the invention]

 The present invention was created in view of the above circumstances, and its main problem is that a pair of fastener components connected by magnetic adhesion can be separated without applying a force in the twisting direction, and they can be separated carelessly. It is an object of the present invention to provide a fastener for accessories which can be separated by pulling the chain in the direction in which the force is not exerted in the direction and pulling the chain away from the arm when separation is required.

[0004]

[Means for solving the problems]

 In order to solve the above-mentioned problem, according to the present invention, a pair of fastener structures to which the ends of the chain are connected are separated by the magnetic force of the magnetically attached surfaces provided respectively. In a pair of fastener components that are connected to each other, one of the fastener components is provided with a protruding shaft portion that protrudes in a direction intersecting the magnetically attached surface, and the other fastener component body includes the protruding shaft portion. A concave receiving portion is formed for fitting and pivotally supporting the pair of fasteners, and a detachment arm projecting in a direction away from the magnetically attached surface of each fastener component is provided on each of the pair of fastener components. The pair of detaching arms are arranged so that, when the pair of fastener members are connected by magnetic force, the connecting sides of the chains connected to the respective fastener members are pulled in opposite tension directions to be on the same straight line. When aligned, make sure that each fastener makes a supplementary angle to this straight line. By pulling the chain in the tensioning direction, one or both of the fastener components are pivoted in the receiving portion with the projecting shaft portion as a support shaft, so that the pair of detaching arms face each other. And pressing the pair of detaching arms facing each other with a gap in the thickness direction of the fastening member mutually, thereby supporting the edge of the fastening member on the extension line of the detaching arm. A technical measure is taken in that the fastener components can be separated against magnetic force. Further, in the invention of claim 2, the pair of fastener components are formed of a pair of container-like case portions, and a permanent magnet is attached to at least one of the case portions, and the polarity is reversed to the other case portion. A permanent magnet or a magnetic body is attached as described above, and a protruding shaft portion is provided at the center of one of the case portions so as to project in the direction of magnetically attaching to the other case portion. A concave portion for fitting is provided, and the pair of case portions are pivotally connected with the projecting shaft portion as a fulcrum when both are magnetically attached. One of the pair of detaching arms is connected to one of the case portions. And the other of the release arms is mounted in the other case at approximately the same position as the connection position of the chain connected to it. Is taking the technical steps of: Further, in the invention of claim 3, the one case portion is a cylindrical shape having a bottom and has a protruding shaft portion at the center, a through hole externally fitted to the protruding shaft portion, and the surface is formed flat. It is provided with a substantially donut-shaped permanent magnet accommodated in the case part, and the other case part is cylindrical, has a through hole in the center, has a flat surface, and is accommodated in the case part. Technical measures are taken to provide permanent magnets. Further, according to the invention of claim 4, a connecting piece which is formed substantially flat on the side of the magnetically attached surface on the peripheral wall of the case portion and whose wide surface is set substantially parallel to the magnetically attached surface is integrally protruded. The technical means of connecting the ends of the chain to each other is taken.

[0005]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the accessory fastener 1 of the present invention will be described with reference to the drawings. The accessory fastener 10 shown in FIG. 1 includes a pair of fastener components 1 and 11 attached to both ends of one chain 20 and connected by magnetic force.

In the present embodiment, one of the first fastener components 1 has a first case portion 2 made of a container-shaped noble metal having a bottomed cylindrical shape. The first case portion 2 has a projecting shaft portion 4 integrally formed at the center of a bottom surface 3 thereof. On the bottom surface 3 of the first case portion 2, a substantially donut-shaped permanent magnet 6 having a circular hole 5 in the center is inserted through the projecting shaft portion 4 into the circular hole 5 so that there is no gap in the case portion 2. Further, the surfaces are fitted so as to be in the same horizontal plane, and are adhered to the bottom surface 3. Here, the protruding shaft portion 4 protrudes outward from the surface.

Next, the other second fastener component 11 is a second case portion 12 made of a container-shaped noble metal having a bottomed cylindrical shape similar to the case portion 2 of the first fastener component 1. have. On the bottom surface 13 of the second case portion 12, a substantially donut-shaped permanent magnet 16 having a circular hole 15 at the center similar to the permanent magnet 6 of the first fastener component 1 is attached to the permanent magnet 6. It is fitted to the case portion 2 so that the polarity is reversed so that there is no gap and the surface is the same horizontal plane, and it is adhered to the bottom surface 13.

Here, the circular hole 15 serves as a receiving portion 14 for fitting the protruding shaft portion 4 of the first fastener component 1. As a result, the first fastener component 1 and the second fastener component 11 are strongly magnetized by the magnetic attraction force by facing the respective permanent magnets 6 and 16 as shown in FIG. The first fastener component 1 and the second fastener component 11 can be connected to function as a fastener.

In the above embodiment, the case where the protruding shaft portion 4 is provided directly on the case portion 2 and the permanent magnets 6 and 16 are adhered to the case portions 2 and 12 with an adhesive is shown. May be used instead of a magnetic material such as a ferromagnetic plate. The means for fixing the permanent magnet or the ferromagnetic plate to the case portion is not limited to bonding, and known fixing means can be used.Further, an intervening material such as a ferromagnetic plate is provided between the case portion and the case. You may. Further, although the protruding shaft portion is formed in the case portion, it may be configured to protrude integrally with the ferromagnetic plate.

Furthermore, in each of the above-described embodiments, the magnetically attached surfaces serving as the surfaces of the permanent magnets 6 and 16 are set to be the same horizontal plane as the surfaces of the case portions 2 and 12, but the magnetically attached surface of one of the case portions is provided. May be recessed slightly inward from the surface of the case, and the magnetically attached surface of the other case may be projected slightly outward from the surface of the case.

Next, connecting pieces 7, 17 for connecting the ends of the chain 20 to the first fastener component 1 and the second fastener component 11, respectively, are provided on the case portions 2, 12, respectively. It protrudes from the outer peripheral wall. The connecting pieces 7 and 17 in the illustrated example are formed of substantially triangular plates, and are arranged at the base ends of the case portions 2 and 12 on the magnetically attached side so that the wide surface is substantially the same as the magnetically attached surface. .

Further, detaching arms 8 and 18 are integrally provided on the outer peripheral walls of the case portions 2 and 12 so as to protrude therefrom. In the case of the illustrated example, the detaching arms 8 and 18 are connected to the outer peripheral walls of the case portions 2 and 12 and extend in a direction away from the magnetically attached surface, and have arm portions 8a and 18a that are substantially horizontal and wide at their distal ends. And the finger hooks 8b and 18b formed at the center.

As shown in FIGS. 4 and 5, the detaching arms 8 and 18 separate the chains 20 connected to the first fastener component 1 and the second fastener component 11, respectively. When they are aligned on the same straight line L by pulling in the direction in which they are drawn, they are arranged so as to form a supplementary angle with respect to this straight line L and protrude from each of the case portions 2 and 12 in a direction away from the magnetic attachment surface. ing.

That is, in the case of the present embodiment, one of the detaching arms 8 is substantially at the same position as the connecting position of the chain 20 connected to the case portion 2, that is, 0 ° with respect to the straight line L. At the position (θ = 0 °), and the other detaching arm 18 is located at a position substantially opposite to the connecting position of the chain 20 connected thereto in the case portion 12, that is, at a position 180 ° with respect to the straight line L. (Θ = 180 degrees). As described above, the connecting piece 7 is arranged so that its flat surface is lateral so as not to interfere with the detachment arm 8.

With the above configuration, when the connected first fastener component 1 and second fastener component 11 are separated from each other, as shown in FIG. Even if the arms 8 and 18 are not aligned, when the chains 20 and 20 are pulled away from each other, the first fastener component 1 and the second fastener 1 are pulled until the chains 20 are aligned on the same straight line L with the projecting shaft 4 as a fulcrum. The two fastener components 11 are turned.

As a result of this rotation, as shown in FIG. 4B, the respective detaching arms 8 and 18 are displaced to positions where they overlap when viewed from a plane. As a result, the pair of detaching arms 8 and 18 face each other with a gap in the thickness direction as shown in FIG. 6, so that the finger hooks 8a of the pair of detaching arms 8 and 18 as shown in FIG. , 18a as a point of force and press against each other, the first and second parts against the magnetic force by the action of a lever with the edge 9 of the case part 2, 12 on the extension of the detachment arm 8, 18 as a fulcrum. The fastener structures 1, 11 are easily separated.

In the above-described embodiment, the example in which the detaching arms 8 and 18 are set at 0 degrees or 180 degrees with respect to the straight line L that aligns the chains 20 is shown. It may be protruding. For example, as shown in FIG. 5, detachment arms 8 and 18 may be provided at positions shifted from the connection position of the chain 20. In the illustrated example, one detaching arm 8 is attached to the case portion 2 at a position shifted by θ degrees from the connection position of the chain 20 connected thereto, and the other detaching arm 18 is attached to the case portion 12 by the case portion 12. Is attached at a position shifted by (180-θ) degrees from the connection position of the chain 20 connected to.

Therefore, as shown in FIG. 5A, even when the detaching arms 8 and 18 are not aligned at the time of connection, if the respective chains 20 and 20 are pulled in a direction in which they are separated and tightened, the protruding shaft portion 4 is moved. As a fulcrum, the first fastener component 1 and the second fastener component 11 pivot until the chain 20 is aligned on the same straight line L, and as shown in FIG. , 18 are displaced to a position where they overlap when viewed from a plane.

Thus, similarly to the above-described embodiment, the finger portions 8 b and 18 b of the pair of detaching arms 8 and 18 are pressed against each other as a point of force, so that the case portion on the extension of the detaching arms 8 and 18 is pressed. The first and second fastener components 1, 11 can be easily separated by the action of a lever against the magnetic force with the edge portions 9 of 2, 2 serving as fulcrums. In this case, since the connecting pieces 7 and 17 do not interfere with the detaching arms 8 and 18, the connecting pieces 7 and 17 can have any shape. In the illustrated example, a vertically oriented ring is integrally fixed.

In the above embodiment, an example was shown in which the first and second fastener components 1 and 11 were connected to both ends of one or a series of chains. May be used. In other words, it goes without saying that various design changes can be made without departing from the gist of the present invention.

[0022]

[Effect of the invention]

 As described above, according to the present invention, a pair of fastener components connected by magnetic force are individually provided to the fastener components only by pulling and pulling the chain connected thereto in the direction away from them. Since the release arm can be easily aligned regardless of the position of the release arm, the release arm can be pressed and separated. Accordingly, since no force is applied in the twisting direction at the time of separation, there is no fear of deformation, and there is no easy separation by an external force.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of the fastener of the present invention.

FIG. 2 is a cross-sectional view of the fastener in a state where the magnetic attachment surfaces are opposed to each other and separated.

FIG. 3 is a plan view of the first and second fastener components.

FIG. 4A is a plan view of the fastener in a state where the detaching arms of the present embodiment are not overlapped, and FIG. 4B is a diagram illustrating a state in which the chain 2 is tensioned and the detachable arms of the present embodiment are overlapped. It is a top view of a tool.

5A and 5B are diagrams schematically showing a mounting position of a detachment arm, wherein FIG. 5A is a plan view of a fastener in a state where the detachment arm does not overlap, and FIG. It is a top view of the fastener of the state where the arm overlapped.

FIG. 6 is a cross-sectional view showing a state where fasteners are connected.

FIG. 7 is a sectional view showing a state in which the fastener is separated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st fastener structure 2, 12 Case part 3, 13 Bottom surface of case part 4 Protruding shaft part 5, 15 Circular hole 6, 16 Permanent magnet 7, 17 Connecting piece 8, 18 Detachment arm 8a, 18a Arm part 8b , 18b finger hook part 10 fastener 11 second fastener structure 14 receiving part 20 chain

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[Procedure amendment]

[Submission date] May 29, 2001 (2001.5.2)
9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

Claims (4)

[Utility model registration claims] 1. A pair of fastener components, each of which is connected to an end of a chain, and is connected to each other so as to be separable by a magnetic force of an opposing magnetic attachment surface. A protruding shaft portion protruding in a direction intersecting with the magnetic attachment surface is provided on the fastener structure, and a concave receiving portion for fitting the protruding shaft portion and pivotably supporting is formed on the other fastener structure. Each of the pair of fastener components is provided with a release arm that projects in a direction away from the magnetically attached surface of each fastener component, and the pair of release arms is a pair of fastener components. When pulling the connecting side of the chain connected to each fastener component in the opposite tension direction and aligning them on the same straight line when they are connected by magnetic force, make a supplementary angle to this straight line It is projected from each fastener structure, and the chain is tensioned. By stretching, one or both of the fastener components is pivoted in the receiving portion with the protruding shaft portion as a support shaft and displaced to a position where the pair of detachment arms face each other, and in the thickness direction of the fastener component. By pressing the pair of detaching arms facing each other with a gap therebetween, the fastening members can be separated against the magnetic force with the edge of the fastening member on the extension of the detaching arm as a fulcrum. A fastener for accessories. 2. A pair of fastener components includes a pair of container-like case portions. At least one of the case portions has a permanent magnet attached thereto, and the other case portion has a permanent magnet or a reverse polarity. Attaching the magnetic body, providing a protruding shaft portion protruding in the direction of magnetically attaching to the other case portion at the center of one of the case portions, and forming a concave portion for fitting the protruding shaft portion to one of the other case portions. The pair of case portions are pivotally connected with the projecting shaft portion as a fulcrum when the two case portions are magnetically attached, and one of the pair of detaching arms is connected to one of the case portions by this. And the other of the detaching arms is attached to the other case at approximately the same position as the connection position of the chain connected thereto. Do Personal ornaments fastener according to Motomeko 1. 3. One of the case portions has a cylindrical shape with a bottom and has a protruding shaft portion at the center, a through hole externally fitted to the protruding shaft portion, the surface is formed flat and housed in the case portion. A substantially donut-shaped permanent magnet having a cylindrical shape, the other case portion having a cylindrical shape, a through hole in the center, a flat surface, and being housed in the case portion. 4. The decorative fastener according to claim 3, wherein: 4. A connecting piece which is formed substantially flat on the side of the magnetized surface on the peripheral wall of the case portion and whose wide surface is set substantially parallel to the magnetized surface is integrally protruded, and an end of the chain is attached to the connecting piece. The fastener for personal ornaments according to claim 3, wherein the fasteners are connected.