JP2021029468A - Clasp of core material for accessory - Google Patents

Abstract

To provide a clasp of an accessory of which a structure is simple and connecting of which is also easy.SOLUTION: A clasp of a core material for an accessory of this invention is provided for the accessory obtained by fitting a decorative material 3 to a string-shaped or chain-shaped core material 4 where both ends are connected in loop through a connecting member 7. A pair of insertion holes 8 for inserting each end of the core material 4 in the opposite directions from both right and left sides is provided by making the connecting member 7 penetrate. One opening end of the insertion holes 8 is an insertion port 8a for inserting the core material 4, and the other opening end is a locking port 8b, 8c for locking a tip of the core material 4. Also, the locking parts 4a, 4b locked to the locking ports 8b, 8c are formed at the tip of the core material 4. Each insertion port 8a is made to open in each other at a position of a connecting center O of the core material 4 or the connecting center O side. Each insertion hole 8 is penetrated in the tilt direction intersected with the connection direction in order to make the locking ports 8b, 8c be opened at the position of the outer circumferential side of the connecting member 7.SELECTED DRAWING: Figure 3

Description

The present invention relates to core fasteners used in accessories such as bracelets and necklaces.

In the ring-shaped accessory as described above, a string-shaped or chain-shaped core material such as a thread or a small-diameter rope is passed through a large number of decorative members such as pearls, jewels, and glass beads, and the ends are connected to form a ring shape. However, in order to make the connecting portion at the end of the core material inconspicuous or to give the connecting member itself a decorative property, fasteners and connecting metal fittings as shown in Patent Documents 1 and 2 are used. ing.

Utility Model Registration No. 3017097 Japanese Unexamined Patent Publication No. 2003-230413

However, since all of the above-mentioned Patent Documents 1 and 2 use a bead-shaped connecting member, they are excellent in maintaining the shape identity with other decorative members, but a pair for connecting the string ends. The structure of the connecting part is complicated and the material is also workable because it requires an insertion part and a socket part to receive it, and it is necessary to provide a hook-shaped engageable and disengageable locking part inside the insertion part. Limited to excellent metals and plastics. For this reason, the cost of parts becomes high, and it is difficult to match the design of the beads and the connecting portion, and there is little room for coordination as a whole.
In addition, there is a drawback that it is difficult for a user such as a child to quickly and accurately engage and disengage the connecting portion of the microstructure.

The fastener of the present invention for solving the above problems is firstly an accessory in which a decorative material 3 is attached to a string-shaped or chain-shaped core material 4 in which both ends are connected in a loop shape via a connecting member 7. At least a pair of insertion holes 8 for inserting the respective ends of the core material 4 in opposite directions from the left and right sides are provided so as to penetrate the connecting member 7, and the core material 4 is inserted through one open end of the insertion holes 8. The other opening end is a locking port 8b, 8c that locks the tip of the core material 4, and a locking portion that is locked to the tip of the core material 4 by the locking port 8b, 8c. 4a and 4b are formed, the insertion ports 8a are opened on both sides of the connecting member 7 at positions closer to the connecting center O or the connecting center O of the core member 4, and the locking ports 8b and 8c are opened on both sides of the connecting member 7. It is characterized in that each insertion hole 8 is penetrated in an inclined direction intersecting the connecting direction so as to be opened at a position closer to the outer periphery on both sides of the connecting member 7.

Second, a position where the center of each insertion port 8a of the insertion hole 8 overlaps with the connection center O of the other insertion port 8a on both side surfaces of the connecting member 7 or is at least within the opening range of the other insertion port 8a. It is characterized by being provided in.

Thirdly, the size of each locking port 8b, 8c is formed to be larger than the size of each insertion hole 8, and the locking portions 4a, 4b of the core material 4 are inside the locking ports 8b, 8c. It is characterized by forming a retaining structure for the core material 4 which is locked at the boundary portion with the insertion hole 8.

Fourth, when the outer circumferences of the locking portions 4a and 4b are locked, the locking portions 4a and 4b and the locking ports 8b and 8c are formed in a size and shape that can be accommodated within the outer line of the connecting member 7. It is a feature.

Fifth, at least one locking port 8b is formed by a groove-shaped recess that crosses the opening of the insertion hole 8, and an arc-shaped groove-shaped cross-sectional portion 9a having a radius that does not exceed the radius of the insertion hole 8 and the groove. The core material 4 is housed along the groove-shaped cross-section 9a in the locking member 9 which is composed of a cylindrical cross-section portion 9b having the same diameter and is connected to the shaped cross-section and is housed in the locking port 8b. The tip of the core material 4 is inserted and fixed in the cylindrical cross-sectional portion 9b to form the locking portion 4a.

Sixth, the connecting member 7 is characterized by being a disk-shaped member having a certain thickness that is circular in a side view.

The fastener of the present invention configured as described above has a simple structure and is a connecting member because it is sufficient to process the end of the core material in addition to simple processing such as drilling holes in the connecting member itself and surface processing. There are few restrictions on the material of the material, the cost can be reduced, and the engagement / disengagement operation can be performed easily, quickly and reliably. For this reason, the degree of freedom in combining the material of the bead and the material of the connecting member is increased, and the degree of freedom of overall coordination by the user is increased.

Further, since the insertion openings through which both connecting ends of the core material are inserted are opened at the center or near the center on both the left and right side surfaces of the connecting member, the connecting member at the time of connecting is the left and right connecting center position or the position near the connecting center. Since it is pulled from both sides by the core material, tensions from both the left and right sides act on the connecting member at the connecting center or a position close to the connecting member, and the connecting member is not tilted in front view. In particular, when the beads are close to each other on both sides, it is possible to maintain a consistent and comfortable connecting posture without tilting due to runout with the adjacent decorative material.
Detailed effects other than these features will be supplemented in the description of the embodiments.

It is the whole front view and the partial enlarged view of the bracelet using the fastener of this invention. It is sectional drawing of the bead used for a bracelet. It is a side view of the connecting member used as a fastener. It is a right side view of a connecting member. (A) and (B) are a bottom view and a plan view showing an example of a locking portion (locking member) constituting a connecting end of the core material, respectively.

1 to 5 show an embodiment of the fastener of the present invention, FIG. 1 is an overall front view of a bracelet 1 which is one of typical accessories, and in this example, a through hole made of natural stone shown in FIG. A string-shaped core material 4 made of elastic high-strength polyurethane or other synthetic resin is passed through a through hole 2 through a large number of beads 3 with 2, and adjacent beads are elastically pressed against each other to elastically press the beads 3. Are connected in a stretchable loop shape.

In this example, the beads 3 are made of natural stone having a diameter of 8 mm, and the beads 3 having a through hole 2 at the center having a diameter of 1.1 mm or more and a core material diameter of 1.0 mm are used. Further, as the core material, other than the above-mentioned fine-diameter resin-coated threads, wires, or chains can be used.

A disk-shaped connecting tool 7 having a constant thickness is used for the fastener 6 of the core material 4 of the accessory 1 shown in FIG. 1, and in this example, it is made of resin having a diameter of 7.4 mm and a thickness of 2.3 mm. However, these materials, sizes, shapes, etc. are arbitrarily selected according to the type and design of the jewelry, the thickness of the core material, the target user group and cost, the difficulty of processing, and the like.

A pair of insertion holes 8 having a diameter of about 1.5 mm for inserting the connecting ends of the core material 4 from both sides are formed at substantially the center positions of the left and right side surfaces of the connecting member 7 so as to penetrate the other side. An insertion port 8a is formed on each side.

The left and right insertion holes 8a are openings of insertion holes 8 that are separate from each other. The insertion port 8a is centered in the connecting direction (connecting center O) so as to maintain an upright posture as much as possible with respect to the core material 4 direction (connecting direction) when a tensile force is applied to the left and right sides by the core material 4 described later. ), But it is desirable that the connecting centers be as close to each other as possible so that they are within the opening range at least from the side view of both insertion holes 8.

In the illustrated example, since the disc-shaped connecting member 7 is intended only for connecting the core material 4, the centers of the left and right insertion ports 8a are aligned with the center of the circle. For example, the connecting member 7 is a necklace. When it also serves as a part of the top (not shown), the center of the connecting member 7 and the connecting center O do not always coincide with each other.

Then, in order to align or bring the centers of the left and right insertion holes 8a of the two insertion holes 8 toward or close to the connection center O as described above, the upper and lower insertion holes 8 are both upward and downward as shown in FIGS. It is tilted (parallel to each other in this example), and the locking ports 8b and 8b of the upper and lower insertion holes 8 for locking the locking portions 4a and 4b of the core material 4 are vertically distributed and arranged on both the left and right sides to open them. There is a need. (Note: The top, bottom, left, and right here indicate the relative positional relationship according to the drawing, and change depending on the orientation of the accessory 1.)

Of the locking ports 8b and 8c, the upper locking port 8b in this example is formed as a round groove-shaped recess that crosses the left opening of the insertion hole 8, and one of the core members 4 is engaged. As shown in FIG. 5, the stop portion 4a is configured by attaching a locking portion 9 made of a circular tubular member to a connecting end of the core member 4.

As shown in FIG. 5, the locking member 9 has an arcuate (semi-circular) groove-shaped cross-section portion 9a having a radius that does not exceed the radius of the insertion hole 8 in the left half portion, and the groove-shaped cross-section portion 9a and the right half portion. It is composed of a C-shaped cylindrical cross-sectional portion 9b having the same diameter that is continuous with the core material 4, and accommodates the core material 4 along the groove-shaped cross-sectional portion 9a. The C-shaped cylindrical cross-sectional portion 9b is pressed inward to be plastically deformed (adhered if necessary) to integrally fix the core material 4.

With this structure, the connecting end of the core material 4 is inserted together with the locking member 9 from the insertion port 8a on the right side of the connecting member 7 and pulled out to the locking port 8b side, and the core material 4 is bent with respect to the core material 4. By forming the locking member 9 into a T shape and pulling in the core material 4, the locking member 9 (locking portion 4a) is housed in the round groove-shaped recess of the engaging port 8b to connect the core material 4. The ends are locked to the connecting member 7.

On the other hand, the locking port 8c opened on the right side of the other (lower) insertion hole 8 is formed as a large-diameter hole having a counterbore-like diameter larger than that of the insertion hole 8. On the other hand, the locking portion 4b, which is the other end of the core material 4, has a bowl-shaped, spherical or C-shaped ring having a diameter smaller than the counterbore hole diameter of the locking port 8c and a diameter larger than the insertion hole 8 below. The locking member 11 having a shape or the like is fitted and fixed in advance by caulking or adhering. Further, the locking portion 4b may form a knot having a diameter larger than that of the lower insertion hole 8 at the end portion of the core material 4 itself.

In the core material 4, the locking portion 4a to which the locking member 9 described above is externally fixed is inserted into the insertion hole 8 below the lower locking port 8c in advance and pulled out to the right side, and the locking portion 4b is pulled out to the lower side. In a state where it can be locked to the opening (the boundary with the locking port 8c) inside the insertion hole 8 of the above, all the beads 3 are sequentially inserted and connected to each other, and finally the locking member 9 is placed on the upper side. It is inserted into the insertion hole 8 and locked to the locking port 8b, and the locking portion 4a of the core material 4 is connected to the other locking portion 4b via the connecting member 7.

By forming one of the locking portions 4b in the core material 4 as described above, the insertion and withdrawal of the core material 4 into the insertion hole 8 on the connecting member 7 side and the through hole 2 of each bead 3 are all in the same cylinder. The shape-shaped locking member 9 can be easily and quickly performed, and both ends of the core material can be easily and accurately connected. In order to smoothly insert and lock (connect) these core materials 4 and close the adjacent spacing between the beads 3 and the connecting member 7, it is desirable that the core material 4 has elasticity.

Further, by aligning each insertion port 8a of the two insertion holes 8 of the connecting member 7 at a position close to the connecting center O or the connecting center O by the core material 4 of the connecting member 7, the ring (loop) of the ornament 1 is formed. The posture of the connecting member 7 can be balanced.

Others Since the connecting member 7 does not require complicated processing such as a hook, a socket part or a threaded part inside, there are no major restrictions on the material (for example, the use of natural stone), the shape, the size, etc., and the connecting member 7 itself is decorated. In addition to being able to have sex, the degree of freedom in design selection and coordination of the entire accessory is increased.

3 Decorative material (beads)
4 Core material 4a, 4b Locking part 6 Fastener 7 Connecting member 8 Insertion hole 8a Insertion port 8b, 8c Locking port 9 Locking member 9a Groove-shaped cross-section 9b Cylindrical cross-section O Connecting center

Claims (6)

An accessory in which a decorative material (3) is attached to a string-shaped or chain-shaped core material (4) in which both ends are connected in a loop shape via a connecting member (7), and each end of the core material (4). At least a pair of insertion holes (8) are provided so as to penetrate the connecting member (7), and one open end of the insertion holes (8) is inserted with the core material (4). The insertion port (8a) is used, and the other opening end is a locking port (8b) or (8c) for locking the tip of the core material (4), and the locking port (8b) is set at the tip of the core material (4). ), (8c) are formed, and the above-mentioned insertion ports (8a) are connected to each other on both sides of the connecting member (7) at the connecting center of the core material (4). It is opened at a position closer to (O) or the connection center (O), and the locking ports (8b) and (8c) are opened at positions closer to the outer periphery on both sides of the connecting member (7) of the connecting member (7). A fastener for a core material for jewelry through which the insertion hole (8) is penetrated in an inclined direction intersecting the connecting direction. The center of each insertion port (8a) of the insertion hole (8) overlaps with the connection center (O) of the other insertion port (8a) on both side surfaces of the connecting member (7), or at least the other insertion port (8a). The fastener of the core material for accessories according to claim 1, which is provided at a position within the opening range of). The size of each locking port (8b), (8c) is formed to be larger than the size of each insertion hole (8), and each locking portion (4a), (4b) of the core material (4) is formed. The accessory core material according to claim 1 or 2, wherein a retaining structure for a core material (4) to be locked at a boundary portion with an insertion hole (8) in the locking ports (8b) and (8c) is formed. Fasteners. When the outer circumferences of the locking portions (4a) and (4b) are locked, the locking portions (4a), (4b) and the locking port (8b) have a size and shape that can be accommodated within the outline of the connecting member (7). ), (8c), the fastener of the core material for accessories according to any one of claims 1 to 3. At least one locking port (8b) is formed by a groove-shaped recess that crosses the opening of the insertion hole (8), and an arcuate groove-shaped cross section (9a) having a radius that does not exceed the radius of the insertion hole (8). And a cylindrical cross-section portion (9b) having the same diameter connected to the groove-shaped cross section, and the locking member (9) housed in the locking port (8b) has the groove-shaped cross-section portion (9a). ), And the tip of the core material (4) is inserted and fixed in the cylindrical cross-sectional portion (9b) to form the locking portion (4a). Fasteners for the core material for the fittings described in any of. The fastener for an accessory core material according to any one of claims 1 to 5, wherein the connecting member (7) is a disk-shaped member having a circular thickness when viewed from the side.

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