JP2010233701A - Fastener made of magnet and method of manufacturing fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastener, simply attached and detached by simple force and operation using magnetic force and repulsive force of a magnet even in the groping state in a part hard to see, and having resistance and a unique beautiful texture in appearance. <P>SOLUTION: This fastener made of a magnet includes: a fastening part formed by coating two circular or polygonal neodymium magnet bodies; a chain connected to the fastening part; and a string-like part. The fastener is attached and detached by shifting the fastening part to utilize repulsive force of the magnet. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fastener for attaching / detaching a chain or string of necklaces, bags, bags, bags, etc., and in particular, a magnet fastener using a neodymium magnet processed to have 2, 4 or 6 poles. The present invention relates to a magnetic fastener and a fastener manufacturing method.

  Generally, fasteners for chains such as necklaces and string-like accessories are made of metal rings and pulling rings. There are also magnetic clasps, but there are still problems with ease of attachment / detachment, tolerance as accessories, and design.

  When attaching fasteners for jewelry such as necklaces, usually, a detailed operation of pulling a metal pulling wheel and passing it through a pair of rings in an invisible place behind the neck is inevitably involved. The detailed operation of the fingertip at this time is difficult particularly when the object is small. It is even more difficult if the nails are short or long, or the fingertips are weakened. In the case of a necklace or the like, an appropriate necklace size is limited due to ergonomic dimensions, and there is a case where considerable difficulty is involved in attaching and detaching operations based on this appropriate dimension.

  In this regard, there are also magnetic fasteners, but since the magnet part is small, the difficulty of operating fasteners installed at both ends of chains, strings, etc. has not been solved yet. . Moreover, it may come off by unexpected attraction.

FIG. 9 is an image diagram in the case where the upper part has an N pole and the lower part has an S pole in the plane part of the magnet, and this form is often used conventionally. Although not shown in FIG. 9, the upper part may be the S pole and the lower part may be the N pole. In this case, since the magnets are in close contact with each other on one plane, no repulsive force is generated by shifting or rotating the magnets, so that it is difficult to remove them easily.

JP2008-12247 JP2007-68947A

  As described above, in jewelry with a dimensional limit such as a necklace, there is a problem with difficulty in attaching and detaching, and there was an idea to solve this by using a magnet, but there is a certain limit there were.

For example, in Patent Document 1, a step with a height difference is formed in the mounting direction of the fastener, and a magnet is embedded in each step, so that even if an attractive force stronger than a magnetic force is applied in the A and B directions, The technical idea is disclosed that it can be easily removed by shifting in the X and Y directions without any step while preventing it from coming off. However, in the configuration in the same document, there is a risk that it will come off when an attractive force more than the magnetic force acts in the X and Y directions, but in order to prevent this, a magnet having a strong magnetic force, such as a neodymium magnet, is used. In such a case, the structure cannot be easily removed even in the X 1 and Y directions, and the user has to recognize that the convenience is insufficient.

Moreover, in patent document 2, a magnet is simply embedded in the mutually opposing surfaces of the left and right adhesive surfaces of the fastener, and the same problem as above, that is, it is difficult to remove when using a magnet having a strong magnetic force. The problem that there is a possibility of unintentional detachment by using a material having a low magnetic force is not solved.

  The present invention solves the above-mentioned problems of the prior art, and realizes a fastener and a fastener manufacturing method that are easy to attach and detach in fasteners such as chains such as necklaces, string-like accessories and bags, bags, bags, etc. The purpose is to do. More specifically, an object is to realize a fastener that is resistant to unexpected attraction and can be easily attached and detached even by using a strong magnetic magnet (for example, a neodymium magnet).

It is another object of the present invention to provide a clasp having appearance and design as an accessory.

  In addition, neodymium magnets are effective for the use of strong magnetic force, but originally, neodymium magnets have the advantage of being inexpensive and easy to process, but due to the fatal drawback of being easily rusted, they can be applied to clothing and sundries. Although there is an aspect that it is difficult to use, this application intends to solve this point.

In order to solve such a problem, the present invention makes good use of the repulsive force together with the magnetic attraction force. Further, in the present application, a neodymium magnet is devised so that it can be used in a place called a neck that is exposed to perspiration or the like on a daily basis. That is, the fastener according to the present invention is different from each other in the first and second magnets magnetized and coated so that the N pole and the S pole appear alternately in a plane. A magnet that is attracted so that the poles are in contact with each other, and a chain connector that is connected to a surface different from the contact surface of the first and second magnets.

The focus of the present application is to use the repulsive force of the magnet because the combination of different polarities so far easily turns into the same polar combination by shifting the contact portions of the first and second magnets in a plane. Therefore, it will be easy to remove the fasteners.

In the above configuration, the first and second magnets may be neodymium magnets having a circular or polygonal cross section, and a chain or string-like accessory may be connected to the chain connector.

Alternatively, in the above-described configuration, the two fasteners may be substantially the same shape or different shape, and the corner portions may be chamfered.

In the above-described configuration, the magnet coating may be a colorless and transparent or an immersion coating coating with colored powder nylon.

The said structure WHEREIN: The said 1st and 2nd magnet may comprise at least 1 plane part, and these both plane parts are divided | segmented into multipolar, and it is good also as a structure closely_contact | adhered corresponding to a different pole.

In the above configuration, the magnet body, the residual magnetic flux density (Br) is 1080 (mT) or higher, the coercive force (bHc) is 796 (KA / m) or more, the maximum energy product (BHmax) is 223 (KJ ^{/ m} 3) It is good also as a structure provided with a higher magnetic characteristic (BH characteristic).

According to the present invention configured as described above, by applying a force to the side slip in parallel with the magnet plane, the NS plane of the magnet, which is configured by dividing the magnet plane portion into multiple poles, is displaced and repulsion occurs. Since only a part of the contact area and the magnetic force are obtained, it can be attached and detached with an easy operation and force.

The NS pole of the magnet is displaced and repulsion occurs, resulting in the contact area and magnetic force of only a part of the magnet. For example, when the magnet plane part is divided into 4 poles, the entire contact state is both fasteners. This is a case where all four poles are attracted by magnetic force, and a partial contact state is attracted by only one pole of both fasteners, that is, approximately one-fourth of the entire magnet surface and magnetic force. Is the case.

According to the present invention configured as described above, it is possible to easily attach and detach the fastener with an easy force and operation by using the magnetic force and the repulsive force of the magnet even in a state of groping in a hard-to-see part. .

In addition, in order to solve the above-described problem, the fastener manufacturing method according to the present invention includes two magnets magnetized so that the N pole and the S pole alternately appear in a plane, and the two magnets are infiltrated. The magnets are attracted so that the magnets having different polarities are in contact with each other, and a chain connector is connected to a surface different from the surface related to the contact of the two magnets.

According to such a configuration, an accessory fastener manufacturing method that is easy to attach and detach can be realized without adding an excessive burden to the cost only by adaptively biting the coating process while adding ingenuity to the magnet manufacturing process. be able to.

According to the present invention, it is possible to easily attach and detach the fastener with an easy force and operation by using the magnetic force and the repulsive force of a magnet even in a state of groping in a hard-to-see part. In addition, the coating provides a fastener with a unique and beautiful texture that is resistant to water, sweat and dirt, resists rusting, and is familiar to the hand.

It is the figure which looked down at the structure in the magnet fastener which concerns on one Embodiment of this invention from diagonally left direction. It is an enlarged view of 1 corner | angular part in FIG. 1, and a junction detail. It is one of the magnetic metal fitting main bodies which concern on one Embodiment of this invention, and is the top view and front view of a structure at the time of providing a countersink in the center part and providing one hole. It is one of the magnetic fastener main bodies according to one embodiment of the present invention, and is a plan view and a front view of a structure in a case where a circular groove is provided and two holes are provided. It is the figure which looked at the structure in the magnet fastener concerning one Embodiment of this invention in the cross section. It is an image figure of the structure of the case of 4 poles (B), the case of 2 poles (C), and the case of 6 poles (D) in the magnet part of the magnetic fastener of the present invention. It is an image figure of the structure of the case of 4 poles (E), the case of 2 poles (F), and the case of 3 poles (G) in the magnet part of the magnetic fastener of the present invention. It is the figure which showed the attachment / detachment method in the magnet fastener in the case of 4 poles which concerns on one Embodiment of this invention in time series, Comprising: (a) 4 poles of the magnetic pole surface of the neodymium magnet which are 2 fasteners respectively correspond (B) When a side slipping force of about 90 degrees is applied, the magnetic surface corresponding to the four poles is shifted, and a repulsive force is generated, and about one quarter of the magnetic surface of each magnet. From the state of adsorbing, (c) the state of 2b, the state where the two fasteners are removed by applying a light force with a finger is shown. It is the enlarged view which showed the image of the magnetic pole of (b) of FIG. It is a figure at the time of making each cross-section in the magnet fastener which concerns on one Embodiment of this invention into one round shape and the other polygon. It is the top view which showed the case where the magnet part of the magnet metal fitting which concerns on one Embodiment of this invention was made into the square-bar shape, for example. FIG. 8 is an enlarged view of a magnet portion in FIG. 7 and an image diagram of magnetic poles in the case of four poles. It is an image figure of the up-and-down plane part of the magnet often used conventionally making N pole S pole.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following, the range necessary for the description for achieving the object of the present invention is schematically shown, and the range necessary for the description of the relevant part of the present invention will be mainly described. Are according to known techniques.

  FIG. 1 is a perspective view of the structure of a magnet fastener according to an embodiment of the present invention. As shown in the figure, the magnetic fastener 1 according to the present embodiment includes a cylindrical magnet 1A and a magnet 1B magnetized to the magnet 1A via an adhesive surface 2. As described above, the magnet according to the present invention does not have to be substantially cylindrical, but has at least a plane portion, and may be, for example, a substantially polygonal column. In this case, for example, the diameter or diagonal line is about 10 to 30 mm, preferably a neodymium magnet of about 15 mm and a thickness of about 1 mm to 3 mm. Such a magnet is preferably provided with an immersion coating (preferably about 0.2 mm) made of powdered nylon with a thickness of 0.15 mm to 0.5 mm. This magnet has a structure in which a chain or string such as a necklace is connected to a surface different from the surface to which each magnet is attracted (for example, when there are two planes, the surface opposite to the attracting surface). Any known structure can be adopted for the junction (A) with such a chain.

  For example, FIG. 1B is a plan view and a front view of a structure in the case where one of the magnetic fasteners is circular and is provided with a countersink at the center and provided with one hole. FIG. 1C is a plan view and a front view of a structure in a case where a circular groove is provided and two holes are provided. Thus, it is possible to take any structural form suitable for the usage application of the fastener.

The magnet body 3 has a residual magnetic flux density (Br) of 1080 (mT) or more, a coercive force (bHc) of 796 (KA / m) or more, and a maximum energy product (BHmax) higher than 223 (KJ / m ³ ). It is preferable to use one having (BH characteristics).

FIG. 2 is a cross-sectional view of the structure of the magnetic fastener according to one embodiment of the present invention. It becomes difficult to oxidize because the neodymium magnet, which originally rusts, is coated with powder nylon. As a result, even when used for accessories that are easily exposed to human sweat or sebum, bags that are easily exposed to wind and rain, bags, bags, and the like, it is difficult to rust.

When painting magnets, normal coating can only have a thickness of about 0.1 mm, but when infiltrated with powder nylon, the coating has a thickness of 0.15 mm to 0.5 mm. Is possible. Therefore, as shown in FIG. 1A, the corners of the magnet are buffered, the friction coefficient is weakened, and there is an effect that it is gentle even if it touches the skin. With regard to this portion, the structure in which the corners are chamfered can be similarly applied to FIGS. 3, 4, 6, 7, and 8.

In addition, when powder nylon is coated with powdered nylon at a high voltage, the thickness is increased, but the surface is uneven, resulting in a rough finish.

In this respect, in the case of immersion coating with powdered nylon according to the present invention, it is a unique and beautiful, smooth surface with a smooth and smooth surface that is easy to fit in, which has overcome those disadvantages. The finish can be realized and it is difficult to peel off, so it is suitable for use as a part of decorative items.

In addition, the immersion coating with powdered nylon with a thick thickness makes it a shock absorber with an attractive force of a neodymium magnet with a strong magnetic force.

Also, depending on the color of the nylon powder used for the nylon coating, it can be transparent or colored in various colors.

For example, when an immersion coating coating is made of transparent powder nylon, it is possible to give a unique texture like classic gold, which is inherent to a neodymium magnet material, which is not colored. As a result, it is possible to use a neodymium magnet that is originally easily rusted and is difficult to use as an accessory while enjoying the original color.

For example, when immersion coating is performed with colored powder nylon, it is possible to beautifully express various shades that do not feel the color of the neodymium magnet material.

Therefore, it is possible to select the fastener according to the present invention from various color variations according to the color of the jewelry such as necklace, bag, bag, bag, etc. It can also be enjoyed as an accent for decorations.

FIG. 9 is an image diagram in the case where the upper part has an N pole and the lower part has an S pole, as described above, and this form is often used conventionally, but in this case, Since the magnets are in close contact with each other on one plane, no repulsive force is generated by shifting or rotating the magnets, so that it is difficult to remove them easily.

On the other hand, FIG. 3 is a conceptual diagram showing the structure of the magnet used in the present invention. From the top, a flat magnet is divided into four poles by separating the central angle of the circle at about 90 degrees (B), a circular magnet is divided into two poles by separating the central angle of the circle at about 180 degrees (C), a circle This is a form (D) in which the central angle is separated to about 60 degrees to form 6 poles. Preferably 4 poles. In the case of 4 poles, the magnet 1A (at least on the side of the adhesive surface 2) has its N poles and S poles alternately magnetized by about 90 °. In the magnet 1B corresponding to this, although not shown in FIG. 3B, the S pole and the N pole are arranged in a plane so as to make a pair with the magnetic pole arrangement in the magnet 1A.

FIG. 3A is a conceptual diagram showing another structure of the magnet used in the present invention. From above, the planar magnet has four poles parallel to the center line of the circle (E), two poles parallel to the center line of the circle (F), and three poles parallel to the center line of the circle. Form (G) is also possible. Also in this case, in the magnet 1B corresponding to this, although not shown in FIGS. 3A and E, the S pole and the N pole are arranged in a plane so as to make a pair with the magnetic pole arrangement in the magnet 1A.

Next, the attaching / detaching operation relating to the magnetic fastener according to the present invention will be described. FIG. 4 illustrates the removal operation of the present invention. FIG. 3 a shows a state in which the four poles correspond to each other (that is, the different polarities of the magnet 1 </ b> A and the magnet 1 </ b> B bind to each other) and are in close contact with each other.

FIG. 4b shows a state in which a force or shearing force or attractive force that rotates about 90 degrees (in the case of four poles) in a side slip in parallel with the magnet plane is applied. These forces are usually applied by users according to circumstances. When this force is applied, the NS poles of the magnets deviate from the state in which the different poles of the magnet 1A and the magnet 1B are bound to each other so that the same poles face each other. As a result, the magnets 1A and 1B are rotated so that the different polarities face each other. In this way, only a quarter of the bonded state by the entire magnet plane is bonded. For this reason, it becomes the contact area of about 1/4 of the state where the whole magnet plane is in contact, and the attracting force by the magnetic force is also reduced to about 1/4.

In the case of two poles, the NS plane of the magnet is displaced by applying a force that rotates the magnet plane parallel to the side slip by about 180 degrees by the same mechanism as above, and a repulsive force is generated, and the entire magnet plane is in close contact. The contact area is about one half of the existing state, and the attracting force by magnetic force is also about one half.

In the case of 6 poles, the NS plane of the magnet is displaced by applying a force that rotates the magnet plane parallel to the side slip by about 45 degrees by the same mechanism as above, and a repulsive force is generated, and the entire magnet plane is in close contact. The contact area is about one-sixth of the existing state, and the attractive force by magnetic force is also about one-sixth.

FIG. 4c illustrates a state in which force is applied in an oblique direction to one planar magnet from the state b. When a force is applied so as to push the portion where the two magnets are displaced, the principle of the lever can be helped and easily removed. As described above, the adhesion force is about one-quarter of the state in which the entire magnet plane is in close contact and the magnetic force, so that the force is much weaker than when the entire magnet plane is in close contact. Can be removed.

In the case of two poles, as described above, the adhering force is about one-half of the state in which the entire magnet plane is in close contact and the magnetic force, so that there are more overlapping surfaces than in the case of four poles.

In the case of 6 poles, as described above, the adhesion area is about one-sixth of the state in which the entire magnet plane is in close contact with the magnetic force, so that there are fewer overlapping surfaces than in the case of 4 poles.

The number of pole faces of the magnet can be appropriately selected according to the intended use.

For example, when a user wears a necklace, the two magnet portions of the present invention can be appropriately brought close to each other without setting the aim. Since it is adsorbed, it can be seen that if a side-slip force is applied, it can be confirmed by clicking and the fitting fit can be confirmed by the hand, so that it can be applied to the entire four poles of the magnet. If the different polarities are magnetized on the entire surface in this way, the close contact state is maintained by the strong magnetic force of the neodymium magnet.

On the other hand, since the user does not aim at the time of wearing the necklace, even if the same poles are in the corresponding position, it can be installed only in the correct installation direction due to the repulsive force of the magnet. It will not be attached. In particular, in the case of a neodymium magnet, the force of magnetic attachment is stronger than that of other magnets (for example, ferrite magnets), so the repulsive force is strong and the above-described error prevention is ensured.

In addition, the two neodymium magnets of the fasteners exhibit a strong magnetic force with respect to a force perpendicular to the magnet plane, but are relatively tolerant to a side-sliding force. In a sense, it can be used in a sense like a key because of the clicking feeling when it is brought into close contact with a skid. In this respect, the applicability to bags, bags, bags and the like is particularly widened.

If a side-slip force is applied, it can be easily attached and detached by the repulsive force of the magnetic force. For example, when attaching and detaching behind the neck like a necklace, there is no need for groping or night lighting. However, it is not troublesome for the user without the trouble of wearing. In addition, due to the length of the nails, even a person who has been difficult to wear a conventional necklace fitting, or an elderly person or a child with weak fingertip power, can wear it without taking time and effort.

Since the attachment and detachment time is short, it is suitable for use as a pet collar, for example. Since the clasp portion is smooth due to the coating, it can be used without worrying about entangled pet hair. In addition, the coating is difficult to peel off and has excellent resistance to water and dirt, so it can be used for pets that move rapidly.

As shown in Fig. 6, if one of the two neodymium magnets is round and the other is polygonal, it will be easier to catch on the finger to be operated, and it will be easier to operate in areas that are particularly difficult to see. is there. In the case of a combination of a circle and a polygon, if the polygon is smaller than the size of the circle, it is easy to apply a skid force and the skid easily. Further, if the polygon is larger than the size of the circle, it is easy to apply a rotational force and the rotation is easy.

Even in the case of materials with corners such as polygons, the corners are buffered by immersion coating with powder nylon, so there is little concern about damaging the skin even if it is used on the part that touches the skin.

In addition, when used for jewelry such as a necklace, there is also a health effect by promoting blood flow to the human body due to magnetic force.

FIG. 7 is a plan view showing a case where the magnet portion of the magnetic fastener according to the embodiment of the present invention is formed into a square bar shape, for example. Even in such a shape, the corners are buffered by immersion coating with powdered nylon, so that there is little fear of damaging the skin even if it is used on a portion corresponding to the skin.

FIG. 8 is an enlarged view of the magnet portion in the case of FIG. 7 and an image diagram of the magnetic pole in the case of four poles. The movement when leaving is explained. By applying a force in parallel to both of the magnets 1, the magnetic pole portions are displaced and a repulsive force is produced, resulting in a magnetic force that is about a half of the state in which the entire magnet plane is in close contact.

Therefore, if a force is applied so as to push a portion where the two magnets are displaced, the principle of the lever can be easily helped and removed. Due to the strong magnetic force of the neodymium magnet, it can be removed with a much weaker force than when the entire flat surface of the magnet is in close contact.

Thus, even if it is arbitrary shapes, since it can be utilized as a fastener, it can be used in a variety of ways as a fastener for bags, bags, bags, accessories, and the like.

By devising the size and shape of the neodymium magnet, which is the material, and the number of magnetic poles, the strength when the magnet plane is in close contact with the entire surface, and the overlapping area and magnetic force of the magnet surface when a deviation occurs due to the repulsive force, can be varied. Therefore, it can also be used as a fastener for various products such as bags, bags, bags, clothes, shoes, nursing supplies, stationery, furniture, electrical appliances, personal computer peripherals, and the like.

  Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. Further, the above-described examples are merely examples of embodiments for realizing the technical idea according to the present invention, and the technical ideas according to the present invention can be applied to other embodiments. Is possible.

For example, in the case of FIG. 7, instead of the above description, it can be considered as a structure in which a chain or string such as a necklace is connected at a position approximately 90 ° with the adhesion surface of the cylinder. That is, in the case of FIG. 1, a structure in which a chain or string such as a necklace is connected to a plane opposite to the surface on which the magnets 1 </ b> A and 1 </ b> B are attracted (a position approximately 180 ° with the adhesive surface) is shown. It may be a form that can be regarded as a configuration in which the portion is shifted by approximately 90 ° from the suction surface. According to this embodiment, since the contact surface with the neck becomes a flat portion, a tactile sensation different from that when the side surface contacts the neck as shown in FIG. 1 can be given.

Furthermore, even when the apparatus, method, and system produced using the present invention are mounted on the secondary product and commercialized, the value of the present invention is not reduced at all.

  Even with parts that are difficult to see and operate, such as the back of the neck, the fastener according to the present invention can be easily attached and detached by using magnetic force and repulsive force. By painting and painting, a unique and beautiful finish is realized, so it can be applied in a wide range of fields including the clothing and sundries industry and the stationery industry. For example, it has applicability in various industrial fields such as architecture, electrical machinery, pet industry, education, welfare, nursing care and medical equipment.

1 Fastener 3 Neodymium magnet body 4 Chain, string, etc.

Claims (7)

In the first and second magnets which are magnetized and coated so that the N pole and the S pole appear alternately in a plane, the first and second magnets are in contact with ones having different polarities. An adsorbed magnet,
And a chain coupler connected to a surface different from the surface related to the contact of the first and second magnets. The first and second magnets are neodymium magnets having a circular or polygonal cross section,
The fastener according to claim 1, wherein a chain or string-like accessory is connected to the chain connector.   The fastener according to claim 1, wherein the two fasteners are substantially the same shape or different shape, and corner portions are chamfered.   2. The fastener according to claim 1, wherein the magnet is coated with a colorless, transparent or colored powder nylon.   2. The fastener according to claim 1, wherein each of the first and second magnets includes at least one plane portion, and both the plane portions are divided into multiple poles and are in close contact with each other corresponding to different poles. . The magnet body, the residual magnetic flux density (Br) is 1080 (mT) or higher, the coercive force (bHc) is 796 (KA / m) or more, high magnetic properties than the maximum energy product (BHmax) is 223 (KJ / ^{m 3)} The fastener according to claim 1, further comprising (BH characteristics). Two magnets magnetized so that the N and S poles appear alternately in a plane are infiltrated,
The two magnets are attracted so that they are in contact with each other,
A fastener manufacturing method, wherein a chain connector is connected to a surface different from the surface related to the contact of the two magnets.

Images