TW201306766A - A locking device for connecting a jewellery strand and manufacturing method thereof - Google Patents

Abstract

A locking device for connecting two end loops of a jewellery strand, such as a strand of a necklace or a bracelet, comprising a strand retainer comprising two end parts connected by means of a centre part, each end part forming a retainer loop for retaining an end loop of a jewellery strand, each retainer loop comprising an entrance for connecting the respective end loop. The device further comprises a clip member comprising two half shells hinged together at respective outer peripheries and a snap lock allowing for the two half shells to be hingedly rotated to be releasably snap-locked to each other to form an assembled clip member with a through-going hole, the centre part in a released position of the clip member being able to be placed between the half shells such that when the half shells are subsequently snap-locked together to assume a locked position of the clip member, the centre part extends through the through-going hole, and the retainer loops of the end parts extend out of the clip member on each side of the through-going hole, whereby the clip member will prevent any jewellery strand end loops attached to the retainer loops from escaping the strand retainer through the retainer loop entrances.

Description

Locking device for connecting jewelry string and manufacturing method thereof

The invention relates to a locking device, in particular to a locking device for connecting a jewelry string and a manufacturing method thereof.

Different types of latching devices are known from the prior art. One of the most common variants is generally referred to as an S-shaped lock in which a string of wire fasteners composed of wire has been bent to obtain a flat S-shape. The two ends of the wire abut against one of the S-shaped central portions of the S-shaped lock in the unloaded position, thereby establishing a catching ring on each of the lateral sides (i.e., at the top and bottom of the S-shaped, respectively). Therefore, the entrance of each turn is disposed between each end and the central portion of the metal wire in the laterally opposite direction. An end ring of the jewel string is inserted through each entrance by forcing the wires and the central portion apart from each other to counteract the inherent elastic force of the wire. Then, due to the elasticity, the metal wire returns to abut against the central portion, whereby the end rings can be held in the S-shaped lock and also held to each other, thus forming a jewelry lock of the necklace or bracelet.

An example of a conventional variant with a similar latching device is disclosed in DE 9 209 259 U1, in which a string fastener is assumed to be an approximately circular ring shape made of a curved metal strip, each half of which forms a loop. A common entry for the end ring of the jewel string into the retaining ring is disposed between the ends of the wire ends of the string fastener.

These conventional jewelry locks have a number of disadvantages: such latching devices are designed to overcome the relatively strong mechanical forces between the two strings of clasps to ensure that the loop segments do not escape the string when the latching position of the latching device is in place The fastening ring of the fastener. For a user or wearer (a person who is fairly soft or quite large), it may be difficult to force the loop to pass through the entrance of the locking device because the user must overcome the considerable force at the entrance. In order to push open the two parts of the abutment. If the locking device is designed to apply less force when attaching the end ring to the retaining ring, then the risk is that the end ring will be out of the way when the position is used, which may result in jewelry Lost. In any case, because the release force must actually be small enough to allow the user to unravel them, there is always a basic risk that the end ring may be detached. Another disadvantage is that the inherent tension of the string fasteners is loosened, causing an increased risk of the end loops escaping from the buckle, and thus may increase the risk of losing jewelry.

Another conventional latching device is disclosed in U.S. Patent No. 229,257, in which a chain fastener comprises two parts which are hinged to each other using a spring and a projection, and the hook is attached to the upper portion of the fastener to hold the necklace.

In view of the above problems, it is an object of the present invention to provide a locking device which has a better holding effect for the end ring of the jewel string and which is easy to snap the end ring to the locking device or to the end ring from the locking device. Untied.

In order to achieve the above object, the present invention provides a locking device according to the preamble, further comprising: a string of rope fasteners disposed separately from the clamping member, the string fastener comprising two end portions, the two end portions Connected by a central portion, each end portion forming a retaining ring to hold an end ring of a jewel string, each of the retaining rings including an inlet for connecting the end rings, the clamping member The central portion can be placed between the two housing halves, such that when the two housing halves are sequentially locked together to cause the clamping member to assume a locked position, the central portion extends through the a through hole, and the fastening loops of the end portions extend outside the clamping member on each side of the through hole, and the clamping member is formed to be prevented from being attached to the jewelry string in the locked position Any end ring on the loop of the cord is free of detachment from the outside of the string fastener from the collar of the loop.

Thereby, it is no longer necessary to design the string fastener to apply a large amount of force when it is attached to or unfastened from the end loop of the jewel string. Conversely, the gripping member prevents the end ring from running away, such as by abutting the string fastener, compressing an elastic string fastener, or by blocking any end loops from disengaging. Since any unwinding or opening action of the clamping member is independent of the action or force applied to the end ring, the strength and safety of the locking is greatly enhanced. Moreover, there is no longer a need to design the string fasteners to accommodate or unravel the end loops and overcome a large amount of force. Instead, the inlet size can be made larger or larger than the diameter or thickness of the material of the end ring when in the unloaded position, so that any user can easily guide the end ring through each inlet. In general, the latch clip can be easily latched to form a closed latch clip that encloses at least the central portion of the string fastener and which can be similarly easily disengaged from the latched closed position for solution Open the end ring and the locking device.

The locking device according to the invention has the additional advantage of enhancing the design and appearance of the locking device. Thus, the gripping members can take on a wide variety of different shapes and can include trims with different variations.

Preferred embodiments of the invention are defined in items 2 to 9 of the subsidiary.

In an embodiment, the retaining ring has a larger size than the through hole, whereby it is prevented from entering the through hole when the locking device is in the locked position. If the retaining ring abuts against a peripheral edge of the through hole or is positioned at a distance from the peripheral edge of the through hole greater than the thickness of the material of the end ring, the end ring can be prevented from entering the clamping member, thereby being able to be securely locked to the closed latching Device.

In another embodiment, the string fasteners are formed such that the entrance to each of the retaining loops is positioned at the central portion and/or causes the access to each of the retaining loops when the latching position of the gripping members is reached. Positioned in the through hole. This ensures that the end ring does not leave the inlet when in the locked position.

In another embodiment, the string fasteners are symmetrical to a line of oblique symmetry, whereby an entrance to each of the loops can be provided on both sides of the central portion, whereby the string can be easily and securely fastened. The end ring of each of the retaining loops of the piece is mounted in the unlatched open position of the clamping member, and the end rings do not interfere with each other during installation.

In another embodiment, the string fastener is formed from a string, preferably a wire, which has been bent into a suitable shape. This ensures that a suitable string fastener is manufactured easily and in a low cost manner.

In another embodiment, each of the retaining loops includes two loop segments, each loop segment extending to a leg that preferably extends parallel into the central section to enable latching at the gripping member It is accommodated in the through hole at the position. Thereby, the clamping member can be easily closed tightly and the circumference of the clamping member or the through hole can be positioned above the leg while allowing the fastening ring to extend beyond each side of the clamping member. In a modification of this embodiment, a first leg on each side is connected to each other by a connecting member. Preferably, the first leg is an upper leg and a lower leg, respectively. The connecting members extend up and down in the lateral direction (preferably obliquely extending). In another variation of this embodiment, the entrance to the retaining ring on each side is formed between the second leg on each side and the connecting member. These features provide a string of cord fasteners with opposite (upper and lower) configuration inlets whereby the end loops can be easily assembled to or uncoupled from the end loops. Moreover, after being combined with the closed gripping members, the string fasteners and the end loops are securely attached to the latching means.

In another embodiment, the latching device further comprises a chain, preferably in the form of an anchor chain, comprising a plurality of interconnected links, each of the links preferably being elliptical, oval or circular, each of the chains One of the links on one end is made to be placed in each of the retaining loops.

The invention also relates to a method of providing a latching device according to any of the preceding claims, the latching device connecting a two end ring of a string of jewels (for example a string of necklaces or bracelets), the method comprising the steps of:

The cymbal string fastener comprises two end portions connected by a central portion, each end portion forming a buckle ring for holding an end ring of a jewel string, each buckle ring comprising a ring for connecting each end ring An entrance;

Providing the clamping member, comprising two outer casings hinged together at the periphery and a buckle, the buckles permitting the two housings to be interlocked with each other when hingedly rotated to form a combined clamping member and having a through hole ;

a set of jewel strings having a two-end ring;

Attaching the end ring of the jewel string to each of the entrances to the buckle ring;

Positioning the central portion between the two housing halves in an unopened open position of the clamping member;

The two halves are locked together, so that the clamping member can obtain a locking position, the central portion extends through the through hole, and the loop of the end portion extends outside the clamping member on each side of the through hole The clamping member in the latching position can prevent the end ring of the jewelry string attached to the buckle ring from being removed from the outside of the string fastener from the buckle ring inlet.

Preferably, the string fastener and the clamping member are configured as any of the above-described embodiments of the latching device, the method providing similar or comparable advantages as described above.

Hereinafter, the present invention will be described by way of exemplary embodiments with reference to the accompanying drawings.

In general, similar or similar elements are labeled with similar element symbols in the different embodiments of the drawings.

Figures 1 to 5 and Figures 8a to 8c show different parts and figures of an embodiment of the locking device 1 for a stringed jewel according to the present invention, which have the form of a necklace or a bracelet, and Figures 1 and 2 show only one of them. Share. In Figures 1 and 2, the locking device 1 is connected to the two end rings 3 and 4 of the chain 2.

The locking device 1 comprises a string of rope fasteners 5, which comprise two end portions connected by a central portion 6, each end portion forming a fastening ring 7, 8 for holding an end ring of the chain 2 3 and 4. Each of the retaining rings 7, 8 includes an inlet 9, 10 for connecting the end rings 3 and 4. The openings or inlets 9, 10 entering the respective retaining rings 7, 8 are located at or near the central portion 6. The string fasteners 5 are symmetrical about a line of oblique symmetry, whereby the inlets 9, 10 entering the respective loops 7, 8 are disposed on the opposite side of the center portion 6 (top/bottom side of Fig. 1) so as to be able to The end rings 3 and 4 are slid easily and firmly on each of the holding loops 7, 8. The string fastener 5 is bent from a metal wire (for example, silver or gold wire). In other embodiments, the string fastener can be stamped from a metal sheet to form a similar shape, for example, the metal can be replaced by a plastic. The wire has a circular cross section but may have other shapes such as an ellipse or a rectangle. If the string fastener is stamped from a sheet, it may become a rectangle. The string fastener can in principle be molded into a suitable shape, for example. In this context, it is to be understood that while it is preferred that the string fasteners do not need to include any particular elastic features or inherent pre-stressing, such flexibility may have the advantage of being able to lock the latching device (ie: The end rings 3, 4 are initially held in the retaining rings 7 and 8 prior to closing the clamping member as described below.

As can be clearly seen from Fig. 8a, each of the retaining loops 7, 8 comprises two loop segments 11, 12; 13, 14, each loop segment extending into a leg portion 15, 16, 17, 18, all legs It extends in parallel to the central portion 6. The first leg portions 16, 17 on each side are connected to each other by a connecting member 19, which is an upper leg portion and a lower leg portion, respectively, so that the connecting member 19 is horizontally up and down. The direction extends obliquely, that is, has an angle of about 60 to 70 degrees with respect to the general leg direction. Preferably, this angle is in the range between 30 and 80. The connecting members 19 at each end extend slightly further up and down than the respective first legs 16, 17 to improve the respective inlets 9 and 10. The inlets 9, 10 entering each of the retaining loops are each formed between the second leg portions 15, 18 on each side and the meandering end of the connecting member 19. The oppositely configured inlets 9, 10 can easily mount and remove the end rings 3 and 4 without contacting or interfering with each other. Both of the second leg portions 15, 18 are slightly bent at the ends (i.e., respectively upwards and downwards) away from the connecting member 19 to more easily pass the respective end rings 3 and 4 through the respective inlets 9, 10 in the second The legs 15, 18 slide.

Referring to Figures 1 and 2, the chain 2 is in the form of an anchor chain comprising a plurality of interconnected links, each of which is substantially elliptical. Each of the end rings 3 and 4 is the endmost ankle link. The string can have any other suitable shape as long as a suitable end loop is provided, for example, a leather string with an installed end loop can be used. In principle, the end ring need not be closed, for example a hook-shaped end ring.

Referring to Figures 3 to 5, the latching device 1 further includes a substantially spherical or spherical metal holding member 20, and the clamping member 20 includes two housing halves 21, 22 which are hinged together by a hinge 23. The hinge 23 is positioned to connect the peripheral portions of the two housing halves 21, 22. The hinges 23 used may have any suitable shape, and each of the half-shells 21, 22 includes an inner recess 24, 25 surrounded by a metal shell 26. When closed, the clamping member 20 thus comprises an inner spherical recess which is formed by two inner recesses 24 and 25 facing each other. The metal shell 26 at each of the lateral ends (left and right ends of Fig. 3) includes a circular hole 27 and 28 for forming respective inlets into a through hole 29. Therefore, the through hole extends first through the hole 27 from the left to the right in FIG. 3 through the clamping member 20, and then through the internal recess (the inner recess 24, 25) and the hole 28. The two elastic plate-shaped bent metal clips 30, 31 around the lower half-shell 22 are snapped into the corresponding projections 30a, 31a of the upper half-shell 21 to form a latch which allows the two half-shells 21, 22 to be wound around. When the hinges 23 are hingedly rotated, they can be unlocked together to form a combined, latched, closed clamping member 20 as shown in FIGS. 3 and 5, and have a through hole 29. A small laterally extending slit 20a at the top end of (Fig. 5) allows the user's nail to be inserted so that the two half-shells 21, 22 can be separated to unlock the string fastener 5 when the gripping member 20 is opened. Other types of buckles or even different kinds of locks can achieve the same purpose, such as a single-plate-shaped and centrally located bent metal clip, or a snap-on connector that can be provided to replace the slit 20a. An external spring presses the button to unlock.

Referring to Figures 8a to 8c, in accordance with the present invention, assembly and latching of the latching device 1 can be implemented in the following manner. The end rings 3, 4 of the chain 2 are slid over the retaining rings 7 and 8 through the respective inlets 9, 10 and are attached to the retaining rings 7 and 8. When the clamping member 20 is in the unlocked open position, the central portion 6 is located between the two housing halves 21 and 22, more specifically on the lower housing half 22 (see Figures 8a and 8b). The half-shells 21, 22 are mutually rotated by a hinge 23 to be locked together by the metal clips 30, 31, whereby the latching position of the gripping member 20 as shown in Fig. 8c is obtained. The central portion 6 now extends through the through hole 29, and the retaining rings 7, 8 extend beyond the outside of the clamping member 20 on each side of the through hole 29, whereby the clamping member 20 can be prevented from being attached to the holding ring 7 The end loops 3, 4 of the jewel string of 8, are exempt from the string fastener 5 from the loop inlets 9, 10.

Therefore, at the blocking position of the holding member 20, the inlets 9, 10 entering the respective holding loops 7, 8 are located in the through hole 29. In this embodiment, the diameter of each of the holes 27, 28 (substantially circular, but may be any suitable shape, such as an ellipse or a square) substantially corresponds to each pair of legs 15, 16; The distance between the 18s (the distance measured from the outside) can prevent the end rings 3, 4 from entering the holes 27, 28 and being locked to the locking device 1. Thus, a portion or all of the legs 15, 16, 17, 18 extend parallel to the other legs 15, 16, 17, 18 into the central section 6 so as to be able to be received in the locked position of the clamping member 20. In the hole 29. Here, the gripping member 20 can be securely closed, so that the circumference of the metal shell 26 of the gripping member 20 is positioned on the legs 15, 16, 17, 18 while allowing the retaining loops 7, 8 to Extending on each side of the clamping member 20.

The retaining rings 7, 8 have a larger size (diameter in this case) than the holes 27, 28, whereby the retaining rings 7, 8 can be prevented from entering the through-holes 29 when the locking device 1 is in the closed position. Moreover, as described above, the retaining loops 7, 8 abut against the peripheral edge of the through hole 29, or the retaining loops 7, 8 are positioned to be spaced apart from the peripheral edge of the through hole 29 by a material thickness smaller than the thickness of the end ring The end rings 3, 4 can be prevented from entering the clamping member 20 and thus can be securely locked to the assembled locking device 1.

Another embodiment of the clamping member 20 is shown in Figures 6 and 7. In the previous embodiment, the surface of each of the half-shells 21, 22 is smooth, but in this case, the substantially spherical surface has been provided with a decorative triangular pattern. In other embodiments, the surface and shape of the clip can be varied as needed. For example, the entire shape may be cylindrical or non-cylindrical (eg, rectangular or triangular in cross section), or non-spherical cubic or parallelepiped shape, but may still include an internal or no pocket. Therefore, in the previous embodiment, the internal recesses may also be omitted, so that the through holes ("tubes" in this case) have the same diameter and pass through the clamping members all the way. However, the presence of internal pockets is preferred because it provides the string fasteners with more design freedom in size and size. An example of a clamping member for use in the present invention is disclosed in EP 1 657 991 B1, the disclosure of which is incorporated herein by reference.

Figures 9 to 11c show the locking device 1 of the present invention, and only the differences from the prior embodiments will be explained below. Therefore, the string fastener 5 in this modified embodiment includes slightly larger semicircular or ear-shaped retaining loops 7 and 8. As can be seen from Figures 11a to 11c, such a structure can provide enhanced safety to prevent the retaining loops 7, 8 from being pulled into the gripping member 20 during use of the jewelry.

Figure 12 is a diagram of the string fastener 5 of Figure 1 shown connected to three different chains 2 on one side, the chains 2 having the same type of chain as shown in Figures 1 and 2, rather than 1 and 2 are only connected to a single chain 2. Thus, each of the retaining loops 7, 8 is mounted to more than one chain 2, such as two, three or more chains, to alter the appearance of the resulting jewelry.

In general, with the latching device of the present invention, the user can exchange the gripping members and the string, and even change the number of strings, thereby enabling the jewelry to achieve a greater change in appearance. Preferably, the latching device of the present invention has the form of a kit of components having a plurality of different gripping members and chains. It can also contain different string fasteners, for example made of different materials such as silver and gold. It is also noted that other variations can be placed in the jewelry, or a jewelry string can contain multiple latching devices that connect multiple chains.

Figures 13a and 13b show another embodiment of a string fastener 5 that uses a jaw clamping member 20 similar to that of Figures 3 to 5. This string fastener 5 is a modification of the string fastener 5 shown in the example of FIG. In this embodiment, each of the retaining loops 7, 8 likewise has two loop segments 11, 12; 13, 14, each extending into a leg portion 15, 16, 17, 18, all legs extending equally parallel Go to the central section 6. The first leg portions 15, 17 on each side are connected to each other by a connecting member 19, in which the first leg portions 15, 17 are the lower legs of the four legs, resulting in The connecting member 19 extends linearly horizontally, actually forming an extension of the legs 15, 16. The inlets 9, 10 entering the retaining rings 7, 8 are thus formed on each side between a second leg 15, 18 and the connecting member 19 (or legs 15, 17). The inlets 9, 10 are located on the upper side. However, it is to be noted that the inlets 9, 10 are located on opposite sides as shown in the above embodiment, because it is thus easier to mount the end rings 3, 4 and separate the two without interference. Moreover, the retaining rings 7, 8 in this embodiment are substantially elliptical.

Figures 14a and 14b show another modified embodiment of a string fastener 5 that uses a jaw clamping member 20 similar to that of Figure 3. In this embodiment, the string fastener 5 is equal to the string fastener shown in Fig. 3 except for the following differences. The connecting member 19 extends linearly horizontally, that is, in parallel with the legs 15 to 18. Moreover, the legs 15, 18 have been extended such that when they are properly positioned within the clamping member 20, the inlets 9, 10 are located at the periphery of the clamping member 20 (see Figure 14b). The size of the portion of the string fastener 5 located outside the gripping member 20 and the dimensions of the holes 27, 28 are also made such that the end loops 3, 4 cannot pass through the inlets 9, 10 and through when the gripping member 20 is in the latched position. Hole 29 leaves. It is to be noted, however, that the inlets 9, 10 are preferably located within the clamping member 20, at least for aesthetic reasons. This is also an easier way.

According to an aspect of the present invention, a locking device for connecting a two-end ring of a jewelry string (for example, a string of necklaces or bracelets) is provided, comprising:

a string of rope fasteners, comprising two end portions connected by a central portion, each end portion forming a buckle ring for holding the ㄧ end rings of the jewel string, each of the buckle rings including an inlet to connect the ends unit;

The utility model further comprises a clamping member comprising a two-half shell hingedly connected to the periphery and a buckle, the buckle lock allowing the two half-shells to be unlocked and unlocked together when hingedly rotated to form a combined clamping member and having a through hole;

In a disengaged position of the clamping member, the central portion can be placed between the two housing halves, such that when the two housing halves are sequentially locked together to cause the clamping member to assume a locked position, The central portion extends through the through hole, and the retaining loops of the end portions extend outside the clamping member on each side of the through hole, and the clamping member is formed to be capable of being prevented in the locked position Any end ring of the buckle that is attached to the jewel string is free from the outside of the string fastener from the buckle collar.

<this invention>

1. . . Locking device

2. . . Chain

3, 4. . . End ring

5. . . String fastener

6. . . Central department

7, 8. . . Buckle ring

9, 10. . . Entrance

11, 12, 13, 14. . . Loop segment

16, 17. . . First leg

15, 18. . . Second leg

19. . . Connecting member

20. . . Clamping member

20a. . . incision

21, 22. . . Half shell

twenty three. . . Hinge

24, 25. . . Inner recess

26. . . Metal shell

27, 28. . . Hole

29. . . Through hole

30, 31. . . Metal clip

30a, 31a. . . Protrusion

1 is a front elevational view of a string of string jewelry showing a string fastener of one of the latching devices attached to a chain end of a chain in accordance with an embodiment of the present invention.

Figure 2 is a cross-sectional view corresponding to Figure 1 in which the latching device is in a latched position and one of the latching members in the latched position is attached to the string fastener.

Figure 3 is a front elevational view of the clamping member of Figure 2, shown in a closed, latched position.

Figure 4 is a cross-sectional view corresponding to Figure 3 showing the gripping member of Figure 2 in an open, unlatched position.

Figure 5 is a cross-sectional view corresponding to Figure 3, showing the gripping member of Figure 2 in a closed, latched position from one end side.

Figures 6 and 7 correspond to the figures of Figures 3 and 4, showing a modified embodiment of the clamping member of Figure 2.

Figures 8a through 8c show the three steps of assembling the latching device shown in Figure 2.

Figures 9 and 10 are diagrams corresponding to Figures 1 and 2, respectively, showing a modified embodiment of the shackle locking device of the present invention.

Figures 11a through 11c are diagrams corresponding to Figures 8a through 8c, respectively, showing the embodiment of Figures 9 and 10.

Figure 12 is a diagram of the string fastener of Figure 1 shown attached to three different chains on one side.

Figures 13a and 13b are diagrams corresponding to Figures 8a and 8b, respectively, showing another embodiment of the string fastener and latching device of the present invention.

Figures 14a and 14b are diagrams corresponding to Figures 8a and 8b, respectively, showing yet another embodiment of the string fastener and latching device of the present invention.

1. . . Locking device

5. . . String fastener

20. . . Clamping member

Claims (10)

A locking device for connecting a jewelry string, comprising:
A clamping member includes two half-shells hinged together at the periphery and a buckle, which allows the two housings to be unlocked and unlocked together when hingedly rotated to form a combined clamping a member having a through hole; and a string of rope fasteners disposed separately from the clamping member, the string fastener comprising two end portions connected by a central portion, each end portion forming a buckle Holding a loop to hold the end ring of the string of jewels, each of the loops including an inlet to connect the ends;
Wherein the central portion can be placed between the two housings when the clamping member is in the unlocked position, and when the two housings are interlocked with each other to obtain a locking position of the clamping member, The central portion extends through the through hole, and the retaining loops of the end portions extend outside the clamping member on each side of the through hole, and the clamping member is formed to be capable of being in the locked position Each of the end rings of the fastening ring that is attached to the jewel string can be prevented from being detached from the outside of the string fastener from the entrance of the buckle. The locking device of claim 1, wherein the fastening ring is sized to prevent the locking device from entering the through hole when the locking device is in the locked position. The locking device of claim 1, wherein the inlet of each of the fastening loops is formed at the central portion of the string fastener, and the inlet of each of the fastening loops when the clamping member is in the latched position It is positioned in the through hole. The latching device of claim 1, wherein the string fastener is symmetrical about a line of oblique symmetry. The latching device of claim 1, wherein the string fastener is formed by a string of wire made of a metal wire and the cord can be bent. The locking device of claim 1, wherein each of the fastening loops comprises two loop segments, each of the loop segments extending to a leg portion extending parallel into the central portion so as to be capable of being in the clip The holding member is received in the through hole when it is in the locked position. The latching device of claim 6, wherein the legs on each side are connected to each other by a connecting member. The locking device of claim 7, wherein each of the legs comprises a first leg portion and a second leg portion, the connecting member extending laterally up and down, the inlet of the buckle ring being formed at each The second leg portion of the side is between the connecting member. The locking device of claim 1, further comprising a chain comprising a plurality of interconnected links, each of the links being elliptical, oval or circular, each of the links being fabricated Can be placed in each of the holding loops. A method of manufacturing a latching device according to any one of claims 1 to 9, the method comprising the steps of:
Providing a string fastener comprising a two end portions connected by a central portion, each of the end portions forming a loop to hold an end ring of a string of jewelry, each of the loops for connecting An inlet of each of the end rings;
Providing a jaw clamping member comprising a second housing half hinged together at the periphery and a buckle allowing the two housing halves to be interlocked with each other when hingedly rotated to form a combined clamping member, the clip The holding member has a through hole;
Attaching the end ring of the jewel string to the fastening ring through each of the inlets;
Positioning the central portion between the two housing halves in an unlatched position of the clamping member; and locking the two housing halves together to enable the clamping member to achieve a latching position, The central portion extends through the through hole, and the retaining ring of the distal end portion extends outside the clamping member on each side of the through hole, and the clamping member in the locked position can be prevented from being attached to the buckle Each of the end loops of the jewel string held by the loop is free of the detachment of the string fastener from the entrance of the loop.