JP6935181B2 - Wire end connector and its manufacturing method - Google Patents

Description

The present invention relates to a connector for a wire end and a method for manufacturing the same.

Various types of connecting devices such as neck straps and necklaces that open and close both ends are known. For example, in the following Patent Document 1 (FIG. 1), Patent Document 2 (FIGS. 5 and 6), Patent Document 3 (FIG. 12), and Patent Document 4 (FIGS. 1 to 3), both ends of a strap having a circular cross section are provided. A connector that opens and closes is shown.

These have a male member having a bulging portion at the tip and a female member made of an elastic body having a penetrating portion at the tip of each strap. When connecting, hold the male and female members in their left and right hands and butt them from the front, and when separating, vice versa.

JP-A-2004-344404 Japanese Unexamined Patent Publication No. 2001-275725 Utility Model Registration No. 3069801 Gazette JP-A-2007-82603

Patent Documents 1 to 4 are used for connecting straps that are relatively soft and have a large diameter. The present inventors have proposed the use of a thin metal wire such as a wire instead of a strap. This is because if such a wire is used, as shown in FIG. 1 of the attached drawing, it can be used as an ornament connecting a large number of beads, and it is considered that new demand can be stimulated.

The question then becomes how to connect such a thin wire to the aforementioned type of connector. The present invention is one answer to that.

The present invention is a connecting tool for the end of a wire for a necklace, the wires 2 and 2B, the female members 3 and 3B provided at one ends 21 and 21B of the wires 2 and 2B, and the wires 2 and 2B. possess a male member 4,4B provided on the end 22, 22b, and the female member 3,3B has a female member main body 31,31B, the packed plug 5 and 5b, the female member body 31,31B Has elastic bodies 7, 7B having penetrating portions 71, 71B, and the male members 4, 4B have male member main bodies 41, 41B and packing plugs 5A, 5C, and the female members 3, 3B. The stuffing plugs 5, 5B and the stuffing plugs 5A, 5C of the male members 4, 4B each have a through hole 55 for passing a wire, and the diameter of the wires 2 and 2B in normal times is larger than the diameter of the through hole 55. The male member bodies 41 and 41B also have bulging portions 44 and 44B that engage with the penetrating portions 71 and 71B, and the wire both ends 21 and 22; 21B and 22B have an elliptical cross section. Metal tubes 6, 6A; 6B, 6C are immovably fixed, and the ends 21, 22, 21B, 22B of the wires to which the metal tubes 6, 6A; 6B, 6C are fixed are the female members. It is characterized in that it is housed in the packing plugs 5, 5B of 3, 3B and the filling plugs 5A, 5C of the male members 4, 4B, respectively.

Preferably, the elastic body 7 of the female member 3 is supported by being sandwiched between the inset type inner plug 9 and the flange 38 at the tip of the female member 3.

A large number of beads 11 and 11B can be fitted to the wires 2 and 2B to form an ornament.

The present invention is also a method for manufacturing a wire end connector for a necklace , wherein the connector includes wires 2, 2B and female members 3, 3B provided at one ends 21, 21B of the wires 2, 2B. The female members 3 and 3B have male members 4 and 4B provided on the other ends 22 and 22B of the wires 2 and 2B, and the female members 3 and 3B have female member main bodies 31 and 31B and packing plugs 5 and 5B. The male members 4, 4B have a male member main body 41, 41B and filling plugs 5A, 5C, and the filling plugs 5, 5B of the female members 3, 3B and the filling plugs 5A, 5C of the male members 4, 4B. has a through hole 55 for passing each wire, the diameter of the wire 2,2B at normal times in small ones der shall than the diameter of the through hole 55, the manufacturing method, the female member 3, A step of providing the elastic bodies 7 and 7B having the penetrating portions 71 and 71B on the 3B, and a step of providing the bulging portions 44 and 44B engaging with the penetrating portions 71 and 71B on the male members 4 and 4B. A step of immovably fixing metal tubes 6, 6A; 6B, 6C having an elliptical cross section to both ends 21, 22, 21B, 22B of the wire, and the wire having the metal tubes 6, 6A; 6B, 6C. It is characterized by having a step of accommodating each end 21,22; 21B, 22B in the packing plugs 5, 5B of the female members 3, 3B and the packing plugs 5A, 5C of the male members 4, 4B, respectively. ..

In the step of providing the elastic body 7 on the female member 3, the elastic body 7 can be retained by forming the flange 38 at the leading end of the female member 3.

Alternatively, in the step of providing the elastic body 7B on the female member 3B, the opening of the elastic body accommodating chamber is narrowed by flattening the cutting-edge thin wall 36B of the female member 3B to narrow the elastic body. it is also possible to form the retaining of 7B.

According to the connector of the present invention, a metal tube having an elliptical cross section is immovably fixed to both ends of the wire. Since both ends of the wire having the metal tube can be accommodated in the female member and the male member, respectively, even a thin metal wire such as a wire can be connected to the connector.

Further, according to the manufacturing method of the present invention, the elastic body is retained by the state-of-the-art flange of the female member, or the thin wall of the female member or another inclusion is smoothed and flattened. Form a retainer of the elastic body. In any case, a beautiful joint surface can be formed.

Hereinafter, examples of the present invention will be described with reference to the accompanying drawings.

It is a perspective view of the connector of the wire end part which concerns on Example 1 of this invention, and is made into the ornament by connecting a large number of beads. (A) to (d) are cross-sectional views showing a method of forming a female member of a connector of a wire end portion. It is a developed sectional view of a female member. (A) to (d) are cross-sectional views showing a method of forming a male member of a connector of a wire end portion. It is sectional drawing which shows the connection method of the male-female member of a connector, (a) shows before connection, (b) shows after connection. It is a perspective view of the connector of the wire end part which concerns on Example 2 of this invention, and is made into the ornament by connecting a large number of beads. (A) to (e) are cross-sectional views showing a method of forming a female member of a connector of a wire end portion. (A) to (e) are cross-sectional views showing a method of forming a male member of a connector of a wire end portion. It is sectional drawing which shows the connection method of the male-female member of a connector, (a) shows before connection, (b) shows after connection.

FIG. 1 is an ornamental necklace 1 in which a large number of beads 11 are arranged side by side. It is a thin wire 2 that penetrates the adlay 11. At one end 21 (FIG. 2) of the wire 2, there is a female member 3 having an elastic material (rubber) 7 having a penetrating portion 71. At the other end 22 (FIG. 4) of the wire, there is a male member 4 having a bulge 44.

The wire 2 is preferably coated with a synthetic resin film (not shown). Examples of the coating material include aramid fiber (Toray Dupont's Kepler (registered trademark)), high-strength polyarylate fiber (Kuraray's Vectran (registered trademark)), ester-based / nylon-based, or urethane-based resin. Be done. By applying such a coating, in addition to protecting against ultraviolet rays, it is possible to solve the drawbacks of being vulnerable to bending and having low wear resistance.

<Female member 3>
FIG. 2 shows the female member 3. The structure will be described while following the manufacturing processes of FIGS. 2 (a) to 2 (d).

First, as shown in (a) and (b), a metal filling plug 5 and a metal tube 6 are fitted to the end portion 21 of the wire 2. The tube 6 is fixed to the wire end 21 with an elliptical cross section by crushing the tube 6 from the outside in the direction of the arrow. The packing plug 5 has a tip cylindrical portion 51 and a rear end lid 52, and forms a step portion 53 in the middle. The tip cylindrical portion 51 has an engaging portion 54. The rear end lid 52 has a through hole 55 for passing a wire.

Subsequently, as shown in (c), the packing plug 5 is lowered to the position of the tube 6, and as shown in (d), this integral body is integrated with the female member main body 31. At this time, the step portion 53 and the tip of the female member main body 31 come into contact with each other, and there is no step.

The female member main body 31 has a cylindrical shape, and the tip on the engaging side is bent inward to form a flange 38, and has engaging portions 34 and 35 at two intermediate positions.

First, the elastic material 7 provided with the penetrating portion 71 is pushed into the engaging end. The flange 38 is retained and the rubber 7 does not pop out of the cylinder.

Subsequently, the inner plug 9 is pushed in from the wire side. As shown in FIG. 3, the inner plug 9 has a drum-shaped cross section and has an engaging-side recess 91 and a wire-side recess 92 at the center. The engaging side recess 91 is followed by a recess extension portion 93 that receives the bulging portion 44 of the male member 4. Further, an engaging portion 94 is provided at the central portion in the vertical direction. The engaging portion 94 and the engaging portion 34 of the female member main body 31 mesh with each other to fix the position of the inner plug 9.

Finally, the packing plug 5 is fitted into the accommodation chamber 33, which is an empty space on the wire side of the female member main body 31. The engaging portion 54 of the packing plug 5 and the engaging portion 35 of the female member main body 31 mesh with each other to fix the position of the packing plug 5.

<Male member 4>
FIG. 4 shows the male member 4. The structure will be described with reference to FIGS. 4 (a) to 4 (d).

As shown in (c) and (d), the male member 4 includes a male member main body 41 and a packing plug 5A.

The male member main body 41 has a base 43, an engaging bulge 44 and a neck 45 protruding from the base 43. The rear end side of the base 43 is a joint with the packing plug 5A.

First, as shown in FIGS. 4A and 4B, a metal filling plug 5A and a metal tube 6A are fitted to the wire end 22. The tube 6A is fixed to the wire end 22 with an elliptical cross section by crushing the tube 6A from the outside. Subsequently, as shown in (c), the packing plug 5A is raised to the position of the tube 6A.

As is clear from the above description, the stuffing plug 5A shown in (a) and (b) is produced in the same manner as the stuffing plug 5 described in FIGS. 2 (a) and 2 (b) with respect to the female member 3.

As shown in (d), the packing plug 5A is press-fitted into the storage chamber 48 of the male member main body 41. At this time, the coupling position is fixed by the engagement between the engaging portion 40 on the accommodation chamber 48 side and the engaging portion 54A on the packing plug side.

<Combining and separating male and female members>
The female member 3 and the male member 4 manufactured as described above can be used in exactly the same manner as the conventional product. That is, as shown in FIGS. 5A and 5B, the bulging portion 44 of the male member 4 is inserted into the rubber 7 penetrating portion 71 of the female member 3 and joined. When separating, the reverse operation is used.

FIG. 7 is a decorative necklace 1B in which a large number of beads 11B are arranged side by side. It is the thin wire 2B that penetrates the adlay 11B. At one end 21B (FIG. 7) of the wire 2B, there is a female member 3B having an elastic material (rubber) 7B provided with a penetrating portion 71B. At the other end 22B (FIG. 8) of the wire is a male member 4B having a bulge 44B.

The wire 2B is preferably coated with a synthetic resin film (not shown) as in Example 1.

<Female member 3B>
FIG. 7 shows the female member 3B. The structure will be described while following the manufacturing processes of FIGS. 2A to 2E.

First, as shown in (a) and (b), a metal filling plug 5B and a metal tube 6B are fitted to the end portion 21B of the wire 2B. The tube 6B is crushed from the outside in the direction of the arrow to form an elliptical cross section, and the tube 6B is fixed to the wire end 21B. The packing plug 5B has a tip cylindrical portion 51B and a rear end lid 52B, and forms a step portion 53B in the middle. The tip cylindrical portion 51B has an engaging portion 54B. The rear end lid 52B has a through hole 55B for passing a wire.

Subsequently, as shown in (c), the packing plug 5B is lowered to the position of the tube 6B, and as shown in (d), this integral body is combined with the female member main body 31B. At this time, the step portion 53B and the tip of the female member main body 31B come into contact with each other, and there is no step.

The female member main body 31B has cylindrical storage chambers 32B and 33B on the engaging side and the wire side, respectively. The accommodating chamber 32B on the engaging side is a cylinder having a step portion 34B in the middle. The packing plug 5B is press-fitted into the storage chamber 33B on the wire side. At this time, the coupling position is fixed by the engagement between the engaging portion 35B on the accommodation chamber 33B side and the engaging portion 54B on the packing plug 5B side.

A rubber 7B having a penetrating portion 71B is inserted into the engaging side accommodating chamber 32B of the female member main body 31B. The rubber 7B is housed in the lower cylindrical portion of the engaging side storage chamber 32B. To fix the position of the rubber 7B in this state, the thin wall 36 B that was previously provided to the tip portion of the engaging-side accommodating chamber 32B is planarized domesticated by rollers (not shown) or the like. By doing so, as shown in FIG. 7 (e), the thin wall 36 B is a portion is adapted to form a retaining narrowed openings of the elastic body 7B accommodating chamber, polished, beautiful Form a joint surface.

<Male member 4B>
FIG. 3 shows the male member 4B. The structure will be described while following the manufacturing processes of FIGS. 3A to 3E.

First, as shown in (a) and (b), the male member 4B includes a male member main body 41B and a support 42B thereof.

The male member main body 41B has a base 43B, an engaging bulge 44B and a neck 45B protruding from the base 43B. The rear end side of the base 43B is a joint with the support 42B. The support 42B is a cylinder.

Both are integrated by press-fitting the joint portion of the base 43B into the support 42B. At this time, the coupling position is fixed by the engagement between the engaging portion 46B on the support 42B side and the engaging portion 47B on the base joint side.

As shown in (c), a metal filling plug 5C and a metal tube 6C are fitted to the wire end 22B. The tube 6C is crushed from the outside to form an elliptical cross section, and the tube 6C is fixed to the wire end 22B. Subsequently, as shown in (d), the packing plug 5C is raised to the position of the tube 6C.

As is clear from the above description, the integral body shown in (c) and (d) is created with respect to the female member 3 in the same manner as described in FIGS. 2 (a) and 2 (b).

As shown in (e), this integral body is press-fitted into the accommodation chamber 48B in the support 42B of the male member main body 41B. At this time, the coupling position is fixed by the engagement between the engaging portion 40B on the support 42B side and the engaging portion 49B on the packing plug side.

<Combining and separating male and female members>
The female member 3B and the male member 4B manufactured as described above can be used in exactly the same manner as the conventional product. That is, as shown in FIGS. 4A and 4B, the bulging portion 44B of the male member 4B is inserted into the penetrating portion 71B of the rubber 7B of the female member 3B and joined. When separating, the reverse operation is used.

1,1B Necklace 11,11B Gem 2,2B Wire 21,21B Wire end 22,22B Wire end 3,3A; 3B, 3C Female member 31,31B Female member body 32,32B Engagement side storage chamber 33,33B Wire side storage chamber 34,34B Engagement part 35,35B Small protrusion 36B Thin wall 37B Engagement part 38 Flange 4,4B Male member 40,40B Engagement part 41,41B Male member body 42B Support 43,43B Base 44, 44B bulge 45,45B neck 46,46B engagement 48,48B containment chamber 49,49B engagement 5,5A; 5B, 5C stuffing plug 51,51B tip cylindrical part 52,52B rear end lid 53,53B step Part 54, 54B Engagement part 55 Through hole 6, 6A; 6B, 6C Tube 7, 7B Elastic body (rubber)
71,71B penetration

Claims (6)

A wire end connector for a necklace
The wire (2,2B), a female member (3,3B) provided at one end (21,21B) of the wire (2,2B), and the other end (22,22B) of the wire (2,2B). possess the male member (4, 4b), a provided in,
The female member (3,3B) has a female member main body (31,31B) and a packing plug (5,5B).
The female member main body (31, 31B) has an elastic body (7, 7B) having a penetrating portion (71, 71B).
The male member (4,4B) has a male member main body (41, 41B) and a packing plug (5A, 5C).
The female member (3,3B) packing plug (5,5B) and the male member (4,4B) packing plug (5A, 5C) each have a through hole (55) for passing a wire, and in normal times The diameter of the wire (2, 2B) is smaller than the diameter of the through hole (55).
The male member main body (41, 41B) has a bulging portion (44, 44B) that engages with the penetrating portion (71, 71B).
Metal tubes (6,6A; 6B, 6C) having an elliptical cross section are immovably fixed to both ends (21,22; 21B, 22B) of the wire.
Each end (21,22; 21B, 22B) of the wire to which the metal tube (6,6A; 6B, 6C) is fixed is the plug (5,5B) and the male of the female member (3,3B). A wire end connecting tool, which is housed in the packing plugs (5A, 5C) of the members (4, 4B), respectively. Claim 1 in which the elastic body (7) of the female member (3) is sandwiched and supported between an inset type inner plug (9) and a flange (38) at the tip of the female member (3). The described connector. The connector according to claim 1 or 2, wherein a large number of beads (11, 11B) are fitted to the wire (2, 2B) to form an ornament. A method of manufacturing a wire end connector for a necklace.
This connector includes a wire (2,2B), a female member (3,3B) provided at one end (21,21B) of the wire (2,2B), and the other end (22) of the wire (2,2B). , 22B), and the female member (3,3B) has a female member main body (31,31B) and a packing plug (5,5B). the male member (4, 4b) are those having a male member main body (41,41B), the packed plug (5A, 5C),
The female member (3,3B) packing plug (5,5B) and the male member (4,4B) packing plug (5A, 5C) each have a through hole (55) for passing a wire, and in normal times The diameter of the wire (2, 2B) is smaller than the diameter of the through hole (55).
The manufacturing method is
A step of providing an elastic body (7,7B) having a penetrating portion (71,71B) on the female member (3,3B), and
A step of providing the male member (4,4B) with a bulging portion (44,44B) that engages with the penetrating portion (71,71B).
A step of immovably fixing a metal tube (6,6A; 6B, 6C) having an elliptical cross section to both ends (21,22; 21B, 22B) of the wire.
Each end (21,22; 21B, 22B) of the wire having the metal tube (6,6A; 6B, 6C) is attached to the plug (5,5B) and the male member (5,5B) of the female member (3,3B). The steps of accommodating each of the packing plugs (5A and 5C) of 4 and 4B) and
A method for manufacturing a connector for a wire end, which comprises. In the step of providing the elastic body (7) on the female member (3), the elastic body (7) is retained by forming a flange (38) at the tip of the female member (3). 4. The method according to claim 4. In the step of providing the elastic body (7B) on the female member (3B), the elastic body (7B) is accommodated by smoothing and flattening the most advanced thin wall (36B) of the female member (3B). The method according to claim 4, wherein the opening of the chamber is narrowed to form a retainer for the elastic body (7B).

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