JP5439043B2 - Accessory clasp - Google Patents

Description

  The present invention relates to a clasp, and more particularly to a clasp applied to accessories such as a necklace and a bracelet.

  Typical examples of clasps (connectors) used for accessories such as necklaces and bracelets include hook types and insertion types. However, in these types, it is necessary to visually align the connecting portion of the clasp when the accessory is mounted, and a clasp having a structure that can be mounted more easily has been desired.

  Therefore, a clasp for accessories using a magnet as shown in Patent Document 1 has been proposed. In this clasp, magnets having different poles are provided at connecting portions formed of a pair of cases. In order to attach an accessory provided with this clasp, the connecting portion of the clasp may be brought close to each other. When they are brought close to each other, both the connecting portions are connected by the magnetic force action of the magnet, and as a result, the accessory is attached. Therefore, the above troublesome alignment is not necessary. Moreover, when removing an accessory, what is necessary is just to apply force to F1 direction as described in FIG. 1 or FIG.

  By applying the clasp having the above structure to an accessory such as a necklace, it is possible to provide an accessory that can be easily attached and detached.

JP 2006-2603 A (FIGS. 1 and 2)

However, the clasp having the above structure has the following disadvantages.
Since the clasp is connected only by the magnetic force of the magnet, the clasp is easily detached when the magnetic force of the magnet is deteriorated.

  In addition, since the direction in which the magnet's magnetic force acts and the direction in which the clasp is released (the F1 direction in FIG. 1 or 2) are on the same line, the clasp separates when the accessory is pulled with excessive force. There is a risk that the accessory will come off.

  Furthermore, when applying force to the clasp in the direction F1 in FIG. 1 or 2 in order to remove the accessory, the accessory portion is usually gripped and pulled instead of the clasp portion. Therefore, a load is applied to the thread portion of the accessory and there is a possibility that the accessory will be cut.

  The present invention has been devised in view of the above-mentioned disadvantages, and an object of the present invention is to provide a clasp that has strong connectivity and can be easily and safely attached and detached. is there.

The invention of claim 1 devised to solve the above-described problems has a first case and a second case, each having a connection end for connecting to an accessory, and being connectable and separable from each other. In the clasp, the second case includes first, second, and third members, a support shaft that interconnects the first, second, and third members; A pair of magnetic coupling means provided on opposite surfaces of the second case and attracting one another to each other by magnetic force, the shaft connecting the connecting ends and the pair of magnetic coupling means being arranged A pair of magnetic coupling means that are in a substantially vertical positional relationship with each other and the surfaces of the first and second cases facing each other, and the surfaces of the pair of magnetic coupling means are in contact with each other Between the contact surfaces of the pair of magnetic coupling means A slide restricting means for restricting a ride, and a slit defined by the first and second members, with the slit, mutually with said first member and said second member about said support shaft And a contact release means for pulling apart the pair of magnetic coupling means in contact with each other by pivoting .

The invention of claim 2 devised to solve the above-mentioned problems has a clasp having a first case and a second case, each having a connection end for connecting to an accessory, and being connectable and separable from each other. A pair of magnetic coupling means provided on opposite surfaces of the first and second cases, and one of the magnetic coupling means attracts the other to each other by magnetic force, the shaft connecting the connection ends, and the pair A pair of magnetic coupling means having a substantially vertical positional relationship with an axis on which the magnetic coupling means are arranged, and provided on opposing surfaces of the first and second cases, respectively. a slide restricting means for restricting the sliding of the contact surfaces of the pair of magnetic coupling means when the surface is in contact, the slit defined by the first and second cases during coupling, the first A first connection portion provided on the first case, and a second connection portion provided on the second case and engaged with the first connection portion. Using the connecting portion for connecting the second case and the slit, the first case and the second case are pivoted to each other around the connecting portion, thereby making the contact. Contact releasing means for pulling apart the pair of magnetic coupling means, and the first connecting portion is a protruding portion having a semicircular cross section that extends on the lateral side of the first case, and The second connection part is configured by a groove part extending in a transverse direction of the second case and having a semicircular cross section .

The invention of claim 3 devised to solve the above-mentioned problems has a clasp having a first case and a second case, each having a connection end for connecting to an accessory, and being connectable and separable from each other. A pair of magnetic coupling means provided on opposite surfaces of the first and second cases, and one of the magnetic coupling means attracts the other to each other by magnetic force, the shaft connecting the connection ends, and the pair A pair of magnetic coupling means having a substantially vertical positional relationship with an axis on which the magnetic coupling means are arranged, and provided on opposing surfaces of the first and second cases, respectively. a slide restricting means for restricting the sliding of the contact surfaces of the pair of magnetic coupling means when the surface is in contact, the slit defined by the first and second cases during coupling, the slit A connecting portion for connecting the contact releasing means separating the pair of magnetic coupling means that the contact, and the first case and the second case using a first provided in the first case 1 connecting portion and a second connecting portion that is provided in the second case and engages with the first connecting portion, and the connecting portion includes the first connecting portion. It is provided near the end of the connection surface between the case and the second case .

Invention of Claim 4 created in order to solve the said subject is the clasp of any one of Claims 1-3 , The said magnetic coupling means is a magnet which has a mutually different magnetic pole. And further comprising a pair of magnetic coupling means provided on opposite surfaces of the first and second case members, respectively, adjacent to the pair of magnetic coupling means and having different magnetic poles. To do.

Invention of Claim 5 created in order to solve the said subject is an accessory provided with the clasp of any one of Claims 1-4 .

According to the clasps of the first to third aspects of the invention, in order to connect the first case member and the second case member of the clasp, the user only needs to bring both case members close to each other. Thereby, a magnetic force acts between the pair of magnetic coupling means, and both case members are attracted and connected. Therefore, it is not necessary to align both case members precisely and can be easily connected.
Further, when the clasp of the present invention is applied to accessories such as a necklace and a bracelet, a tensile force usually acts on both connection ends. However, in the clasp of the present invention, the pair of magnetic coupling means connecting the first and second case members by magnetic force connect the connecting ends in the direction in which the tensile force acts, that is, Since the slide restricting means restricts the sliding of the contact surfaces of the pair of magnetic coupling means, the first and second cases are separated by this pulling force. There is a low possibility that
Furthermore, when separating the first case member and the second case member, the pair of magnetic coupling means may be separated using the contact release means. Thereby, since the magnetic force which acts between a pair of magnetic coupling means attenuate | damps, a user can isolate | separate both case members easily.

In the clasp of the invention of claim 4 , the first and second case members are connected to each other using two pairs of magnetic coupling means. Thus, it is more reliable to use the plurality of small magnetic coupling means than to use a single large magnetic coupling means to connect the first and second case members with a smaller total volume of magnetic coupling means. Can be linked.

In the invention of claim 5 , the clasp of the present invention can be provided in the form of an accessory.

  According to the present invention, it is possible to provide a clasp that has strong connectivity and can be attached and detached easily and safely.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the clasp which concerns on the 1st Embodiment of this invention, Comprising: (a) is a perspective view, (b) is a longitudinal side view. It is a figure for demonstrating the structure of the clasp which concerns on the 1st Embodiment of this invention, (a) is the figure which looked at the 1st case from the connection surface, (b) is the 2nd case It is the figure which looked at from the connection surface. It is sectional drawing of the longitudinal side surface for demonstrating the connection and removal of the clasp which concerns on the 1st Embodiment of this invention, (a) is the state before attaching a 1st case to a 2nd case, (B) is a state in which the first case is attached to the second case, and (c) is a state before the first case is removed from the second case. It is a figure for demonstrating the structure of the clasp which concerns on the 2nd Embodiment of this invention, Comprising: (a) is a longitudinal side view, (b) It is the figure which looked at the 1st case from the connection surface. (C) is a view of the second case as seen from its connection surface. It is a figure for demonstrating the structure of the clasp which concerns on the 3rd Embodiment of this invention, Comprising: (a) is a longitudinal side view, (b) It is the figure which looked at the 1st case from the connection surface. (C) is a view of the second case as seen from its connection surface. It is a figure for demonstrating the structure of the clasp which concerns on the 4th Embodiment of this invention, Comprising: (a) is a longitudinal side view, (b) It is the figure which looked at the 1st case from the connection surface. (C) is a view of the second case as seen from its connection surface.

[First Embodiment]
A clasp structure according to a first embodiment of the present invention will be described in detail below with reference to the accompanying drawings of FIGS.

  FIG. 1 shows an external shape of a clasp 10 according to the first embodiment of the present invention, wherein (a) is a perspective view of the clasp 10 and (b) is a longitudinal side view. The illustrated clasp 10 is roughly composed of a first case 20 and a second case 30. Although the details will be described later, the first and second cases 20 and 30 are connected by magnetic force and can be easily removed by the user. Further, a first connection end 40 is provided at one end of the first case 20, and a second connection end 50 is provided at an end surface of the second case 30, and the clasp 10 is provided at these connection ends. Accessories such as necklaces and bracelets are connected.

  The second case 30 is mainly composed of a first member 310, a second member 320, and a third member 330, and these members are connected to each other by a support shaft 60. The first member 310 and the second member 320 define a slit 70, and a third member 330 having a second connection end 50 is provided in the slit. Because of this slit, the first member 310 and the second member 320 can pivot with respect to each other about the support shaft 60.

FIG. 2 is a diagram illustrating the internal structure of the clasp 10, and FIG. 2A illustrates the internal structure viewed from the first connection surface 210 in contact with the second case 30 of the first case 20, and FIG. These show the structure of the second case 30 as viewed from the second connection surface 340 that contacts the first case 20.
As shown in FIG. 2A, a first flat portion 220 is formed in the first case 20, and a columnar first magnet 230 is arranged at the approximate center of the flat portion. This magnet forms the same plane as the first flat portion 220. Around the first magnet 230, a protrusion 240 is formed that extends from the first flat portion 220 by a predetermined length L1.

  As shown in FIG. 2B, the second case 30 is formed with a second flat portion 350, and a columnar second magnet 360 is arranged at the approximate center thereof. This magnet forms the same plane as the second flat portion 350. The first member 310 is deeper than the second flat portion 350 by a predetermined length L2. Here, the relationship between the extension amount L1 of the protrusion 240 and the amount L2 of the first member 310 has entered is L2≈L1.

  The surface of the first magnet 230 and the surface of the second magnet 360 need to have different magnetic poles in order to attract each other.

FIG. 3 shows a cross section of the longitudinal side surface of the clasp 10, and the manner of attaching and removing the clasp 10 will be described with reference to this figure.
First, as shown in FIG. 3A, the user of the clasp 10 grasps the first case 20 and the second case 30 of the clasp 10 with their fingers and brings them close together. As a result, the first magnet 230 and the second magnet 360 are attracted to each other by the magnetic action, and are connected to each other as shown in FIG.

  FIG. 3B shows a state in which the first case 20 and the second case 30 of the clasp 10 are connected to each other, which corresponds to a state in which the clasp 10 is actually used. At this time, the surface of the first magnet 230 and the surface of the second magnet 360 are in contact with each other, and the protruding portion 240 of the first case 20 is in contact with the second flat portion 350 of the second case. It is arranged so as to cover the periphery.

FIG. 3 (c) shows an aspect when the first case 20 of the clasp 10 is removed from the second case 30. First, the user presses the edge portion of the second case 30 with a finger in the direction of the arrow. As a result, the first and second members 310 and 320 of the second case 30 pivot about the support shaft 60. As a result, the surfaces of the first and second magnets 230 and 360 that have been in contact with each other are separated. In this state, the user can easily remove the first case 20 from the second case 30 by pulling the first case 20.

The clasp 10 having the above structure has the following advantages.
(1) When the first case 20 is attached to the second case 30, the first case 20 may be brought close to the second case 30 as shown in FIG. Thereby, a magnetic force acts between the first magnet 230 and the second magnet 360, and both cases are attracted and connected to each other. Therefore, it is not necessary to position both cases precisely and can be easily connected.
(2) Generally, when applying the clasp 10 to accessories such as necklaces and bracelets, tensile force as shown in FIG. 3 (b) acts on the clasp 10. However, in the clasp 10 of the present embodiment, the first and second magnets 230 and 360 that connect both cases by magnetic force, and the direction in which the tensile force acts, that is, the first and second connection ends 40 and 50 are connected. And the protrusion 240 of the first case 20 covers the periphery of the second flat portion 350 of the second case, so that the first and second lines are connected to each other. The sliding movement of the surfaces of the second magnets 230 and 360 is restricted. Therefore, it is unlikely that the first and second cases 20 and 30 will be separated by this pulling force.
(3) When removing the first case 20 from the second case 30 , a force in the direction shown in FIG. Thereby, the surface of the 1st and 2nd magnets 230 and 360 leaves | separates, and the magnetic force which acts between both attenuates. Therefore, if the user pulls the first case 20 from the second case 30 in this state, it can be easily removed.

  Although the structure of the clasp 10 according to the first embodiment of the present invention has been described above, the present invention is not limited to the contents of the present embodiment. For example, in the present embodiment, the first and second magnets 230 and 360, the first and second flat portions 220 and 350, and the protruding portion 240 are circular, but the present invention is not limited to this. Any shape such as an ellipse or a polygon may be used. Furthermore, although the protrusion part 240 is provided in the 1st case 20, this invention is not limited to this, You may provide a protrusion part in the 2nd case 30. FIG.

  Furthermore, in this embodiment, in order to connect the first case 20 and the second case 30, the first magnet 230 and the second magnet 360 having different magnetic poles are used. The invention is not limited to this configuration. Alternatively, any of the first magnet 230 and the second magnet 360 may be a ferromagnetic material such as iron. Since the ferromagnetic material is attracted to the magnet, the first case 20 and the second case 30 are well connected in this case as well.

  Moreover, the material of each member which comprises the clasp 10 is not specifically limited, You may use arbitrary materials, such as various magnets, a metal, and resin. Similarly, the manufacturing method of each member may also use arbitrary processing methods, such as shaving, bonding, etching, mold processing using a die or a press.

[Second Embodiment]
A clasp 1000 according to the second embodiment of the present invention will be described with reference to FIG. The same reference numerals are assigned to the same members as the clasp 10 of the first embodiment.
FIG. 4A is a longitudinal side view of the clasp 1000 of the present embodiment. As shown in the figure, the clasp 1000 is mainly composed of a first case 500 and a second case 600. Both cases are connected by a connecting portion 550.

  FIG. 4B is a diagram of the first case 500 viewed from the connection surface 510. The structure of the first flat portion 220, the first magnet 230, and the protruding portion 240 is the same as that of the clasp 10 of the first embodiment, but the first case 500 of the present embodiment has a first connection portion. 550a is provided. This connecting portion is formed of a protruding portion having a semicircular cross section that extends to the lateral side of the first case 500.

  FIG. 4C is a diagram of the second case 600 viewed from the connection surface 610. The structures of the second magnet 360 and the second flat portion 350 are the same as those of the clasp 10 of the first embodiment, but the second case 600 of the present embodiment is provided with a second connection portion 550b. It has been. This connection portion is configured by a groove portion having a semicircular cross section that extends to the lateral side of the second case 600. The radius of the cross section of the groove portion is equal to the cross-sectional radius of the first connection portion 550a described above. It is almost the same. Therefore, the first connection portion 550a and the second connection portion 550b are preferably engaged with each other.

  The clasp 1000 of this embodiment realizes the same function with a simpler structure than the clasp 10 of the first embodiment. In the clasp 1000, when the first case 500 is removed from the second case 600, the periphery of the slit 70 of the first and second cases 500 and 600 is pressed in the same manner as the clasp 10 of the first embodiment. do it. Accordingly, the first and second cases 500 and 600 pivot about the connection portion 550, and the surfaces of the first and second magnets 230 and 360 that are in contact with each other are separated. If the first case 500 is pulled in this state, the first case 500 is easily detached from the second case 600.

[Third Embodiment]
A clasp 2000 according to the third embodiment of the present invention will be described with reference to FIG. The same reference numerals are assigned to the same members as the clasp 10 of the first embodiment.
FIG. 5A is a longitudinal side view of the clasp 2000 of the present embodiment. As shown in the figure, the clasp 2000 is mainly composed of a first case 700 and a second case 800. Both cases are connected by a connecting portion 750. This clasp 2000 is different from the clasp 1000 of the second embodiment in the structure of the connecting portion 750. Therefore, only the connection part 750 will be described below.

  FIG. 5B is a diagram of the first case 700 viewed from the connection surface 710. A first connection portion 750 a is provided near the end of the connection surface 710 of the first case 700. This connection part is formed of a convex part.

FIG. 5C is a view of the second case 800 viewed from the connection surface 810. A second connection portion 750 b is provided in a portion of the connection surface 810 corresponding to the first connection portion 750 a of the second case 800. This connecting portion is formed by a concave portion having a circular cross section. The curvature of the recess is substantially the same as the curvature of the first connection portion 750a . Therefore, the first connection portion 750a and the second connection portion 750b are preferably engaged with each other.

The clasp 2000 of the present embodiment can realize the same function with a simpler structure than the clasp 10 according to the first embodiment, like the clasp 1000 of the second embodiment. In the clasp 2000, when the first case 700 is removed from the second case 800, the periphery of the slit 70 of the first and second cases 700 and 800 may be pressed. As a result, the first and second cases 700 and 800 pivot about the corners between the connection surface and the surface forming the slit 70, and are in contact with each other. The surfaces of the magnets 230 and 360 are separated. If the first case 700 is pulled in this state, the first case 700 is easily detached from the second case 800.

[Fourth Embodiment]
A clasp 3000 according to the fourth embodiment of the present invention will be described with reference to FIG. The same reference numerals are assigned to the same members as the clasp 10 of the first embodiment.
FIG. 6A is a longitudinal side view of the clasp 3000 of the present embodiment.

  FIG. 6B is a view of the first case 900 viewed from the first connection surface 910. As illustrated, the first connection surface 910 of the first case 900 includes a first magnet pair 4000a and 4000b, a first flat portion pair 4100a and 4100b, and a protruding portion pair 4200a and 4200b. It is provided.

  FIG. 6C is a view of the second case 950 viewed from the second connection surface 960. As illustrated, the second connection surface 960 of the second case 950 is provided with second magnet pairs 5000a and 5000b and second flat portion pairs 5100a and 5100b.

  As described above, the clasp 3000 of this embodiment is different from the clasps of the first to third embodiments, and the first and second cases 900 and 950 each include two magnets. When the outer shape of the clasp is relatively large, a plurality of magnets may be used in this way. The number of magnets of the clasp of the present invention is not limited to a specific number, and an arbitrary number of magnets may be provided.

In the clasp 3000 of the present embodiment, the surfaces of the first magnet pairs 4000a and 4000b of the first case 900 preferably have different polarities. For example, when the surface of the magnet 4000a is an S pole, the surface of the magnet 4000b is an N pole. In this case, as a matter of course, the polarities of the surfaces of the second magnet pairs 5000a and 5000b of the second case 950 are the N pole and the S pole, respectively. Thus, if the magnet pairs have different polarities, for example, problems such as the magnets 4000a and 5000b being attracted and connected to each other can be avoided.

  As mentioned above, although this invention was demonstrated using embodiment shown in drawing, these are only an illustration and those skilled in this technical field can variously be within the range which does not deviate from the range and the meaning of this invention. It will be understood that modifications and variations are possible. Accordingly, the scope of the invention should not be determined by the described embodiments, but by the technical spirit described in the claims.

10, 1000, 2000, 3000 Clasp 20, 500, 700, 900 First case 30, 600, 800, 950 Second case 40 First connection end 50 Second connection end 60 Spindle 70 Slit 210, 510 , 910 First connection surface 220 First flat portion 230 First magnet 240 Protruding portion 310 First member 320 Second member 330 Third member 340, 610, 960 Second connection surface 350 Second Flat part 360 Second magnet 550, 750 Connection part 550a, 750a First connection part 550b, 750b Second connection part 4000a, 4000b First magnet pair 4100a, 4100b First flat part pair 4200a, 4200b Projection part Pair 5000a, 5000b Second magnet pair 5100a, 510 b second flat portion pair

Claims (5)

In a clasp having a first case and a second case, each of which has a connection end for connecting to an accessory and can be connected and separated from each other.
The second case has first, second, and third members,
A spindle that interconnects the first, second, and third members;
A pair of magnetic coupling means provided on the opposing surfaces of the first and second cases, respectively, one of which attracts the other or the other by magnetic force, the shaft connecting the connection ends, and the pair of magnetic A pair of magnetic coupling means having a substantially vertical positional relationship with an axis on which the coupling means are arranged;
A slide restricting means that is provided on the opposing surfaces of the first and second cases, and restricts the sliding of the contact surfaces of the pair of magnetic coupling means when the surfaces of the pair of magnetic coupling means come into contact with each other;
A slit defined by the first and second members;
Contact releasing means for separating the pair of magnetic coupling means in contact with each other by using the slit to cause the first member and the second member to pivot relative to each other about the support shaft ; ,
A clasp characterized by comprising. In a clasp having a first case and a second case, each having a connection end for connecting to an accessory, and being connectable and separable from each other.
A pair of magnetic coupling means provided on the opposing surfaces of the first and second cases, respectively, one of which attracts the other or the other by magnetic force, the shaft connecting the connection ends, and the pair of magnetic A pair of magnetic coupling means having a substantially vertical positional relationship with an axis on which the coupling means are arranged;
A slide restricting means that is provided on the opposing surfaces of the first and second cases, and restricts the sliding of the contact surfaces of the pair of magnetic coupling means when the surfaces of the pair of magnetic coupling means come into contact with each other;
A slit defined by the first and second cases when coupled;
A first connecting portion provided in the first case; and a second connecting portion provided in the second case and engaged with the first connecting portion. A connecting portion that connects the second case and the second case;
Contact releasing means for separating the pair of magnetic coupling means in contact with each other by pivoting the first case and the second case around the connecting portion by using the slit; ,
Have
The first connection portion extends on the lateral side of the first case, and has a semicircular cross section. The second connection portion extends on the lateral side of the second case. And a clasp characterized in that the cross section is constituted by a semicircular groove . In a clasp having a first case and a second case, each having a connection end for connecting to an accessory, and being connectable and separable from each other.
A pair of magnetic coupling means provided on the opposing surfaces of the first and second cases, respectively, one of which attracts the other or the other by magnetic force, the shaft connecting the connection ends, and the pair of magnetic A pair of magnetic coupling means having a substantially vertical positional relationship with an axis on which the coupling means are arranged;
A slide restricting means that is provided on the opposing surfaces of the first and second cases, and restricts the sliding of the contact surfaces of the pair of magnetic coupling means when the surfaces of the pair of magnetic coupling means come into contact with each other;
A slit defined by the first and second cases when coupled;
Contact release means for separating the pair of magnetic coupling means in contact with each other using the slit;
A connection part for connecting the first case and the second case, the first connection part provided in the first case, and the first connection provided in the second case. A connection portion comprising: a second connection portion engaging with the portion;
Have
The clasp , wherein the connection portion is provided near an end of a connection surface between the first case and the second case . The pair of magnetic coupling means are magnets having different magnetic poles,
Respectively provided on opposing surfaces of the first and second cases, respectively adjacent to said pair of magnetic coupling means, and claim 1, characterized by further comprising a pair of magnetic coupling means having different magnetic poles - The clasp according to any one of claims 3 to 4 . The accessory provided with the clasp of any one of Claims 1-4 .