JPH06104085B2 - Fasteners for chain-shaped ornaments - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chain-like ornamental fastener used for detachably connecting both ends of a chain-like ornament such as a necklace or a bracelet.

[0002]

2. Description of the Related Art Generally, a fastener of this kind is constructed by connecting a metal fitting body 1 to which one end side of a chain-like ornament M such as a necklace is connected and the other end of the ornament M as shown in FIG. Connecting member 2 detachably connected to the metal fitting body 1
And a side lock member 3 disposed on at least one side surface side of the metal fitting body 1 and the connecting member 2 in the width direction so as to straddle the two members 1 and 2, and the side lock member 3 By this, the careless detachment of the metal fitting body 1 and the connecting member 2 in the connected state is prevented.

FIG. 1 shows a specific structure of this side lock structure.
2 shows. In the figure, the side lock member 3 is formed by forming a flat loop shape at the tip portion 3b with a metal wire rod, and the base end portion 3a is, for example, a half bearing plate 101 with respect to one side surface of the connecting member 2. By supporting the side lock member 3, the side lock member 3 is pivotally supported so as to be rotatable in the engagement / disengagement direction on the distal end side, that is, in the width direction (directions of arrows a and b in FIG. 1).
An Ω-shaped locking protrusion 4 is formed on one side surface of the metal fitting body 1, and the side lock member 3 is pivotally operated in the direction of arrow a to lock the flat end 3b thereof. When pushed into the protrusion 4, the side lock member 3 is locked.

[0004]

However, according to the above-mentioned conventional fastener, the turning direction of the side lock member 3 is restricted only to the engaging / disengaging direction by the half bearing plate 101 of the base end portion 3a. , When the metal fitting body 1 and the connecting member 2 try to displace along the plane orthogonal to the engaging / disengaging direction while the side lock member 3 is engaged, a twisting force acts on the side lock member, and the side lock member itself, Alternatively, there is a risk of causing damage to the pivotal portion. In particular, this problem remarkably appears in a so-called center-folding type stopper, in which the metal fitting body 1 and the connecting member 2 are rotatably connected to each other.

That is, in this middle folding type fastener, there is no problem if the metal fitting body 1 and the connecting member 2 are used in a state of being linearly connected as shown by the solid line in FIG. As shown by the chain line in the same figure, in the use state of middle folding in which the metal fitting body 1 and the connecting member 2 are relatively stepped in the vertical direction, in the direction along the surface vertical to the side lock member 3. Force acts on the base end portion 3a to impart a twisting force to the base end portion 3a, while the locking protrusion 4 acts to abnormally expand the diameter of the tip end portion 3b. By repeating such a state of use, the pivotal support structure of the side lock member 3 is broken, or the engagement force with respect to the locking projection 4 is weakened, leading to early loss of the side lock function.

This means that when the metal fitting body 1 and the connecting member 2 are separated from each other, even if the side lock member 3 is inadvertently bent into the middle without being disengaged,
Occur.

The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to effectively exhibit a proper side lock function for a long period of time even if the usage state changes or there is an inadvertent operation. The object is to provide a fastener for a chain-like ornament that can

[0008]

In order to achieve the above object, the fastener for a chain-shaped ornamental article according to the present invention has one end side of the chain-like ornamental article M as indicated by reference numerals in the drawings. The metal fitting body 1 to be connected and the connecting member 2 to which the other end side of the ornament M is connected and is detachably connected to the metal fitting body 1.
And a loop-shaped side lock member which is disposed over at least one side surface in the width direction of the metal fitting body 1 and the connecting member 2 and extends over both of them 1 and 2, and the tip portion 3a of which is formed of a metal wire in a flat shape. 3, the base end portion of the side lock member 3 is pivotally supported on one of the side surfaces of the fitting main body 1 and the connecting member 2, and an Ω-shaped locking projection provided on the other side surface. 4, the end portion 3b of the side lock member 3
In a fastener for a chain-like ornament that engages with each other in a disengageable manner, the base end portion 3a of the side lock member 3 is a surface orthogonal to at least the engagement and disengagement direction of the side lock member 3. Pivoting means 5 for pivoting in a direction along the
The configuration including (25, 35, 45, 55) is adopted.

[0009]

According to the fastener having the above-described structure, if the tip portion 3b of the side lock member 3 is pushed into the locking projection 4 and is engaged with the metal fitting body 1 and the connecting member 2 connected, The connection between 1 and the connecting member 2 is locked, and accidental disengagement is prevented.

Particularly, for example, even if the metal fitting body 1 and the connecting member 2 are displaced in the vertical direction in a stepwise manner, the side lock member 3 is constructed by, for example, a stopper.
Since the pivotal support means 5 (25, 35, 45, 55) of the above allows the side lock member 3 to move in the direction along the plane orthogonal to the engaging / disengaging direction, that is, in the direction along the vertical plane, No unreasonable force is applied. Therefore,
It is possible to prevent the pivotal structure of the side lock member 3 from breaking down and the tip portion 3b of the side lock member 3 from abnormally deforming.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a stopper of a chain-like ornament according to the present invention in a used state, and FIGS. 2 and 3 are a perspective view and a longitudinal sectional view showing the stopper, respectively.

1, 2 and 3, 1 is a chain-like ornament, for example, a metal fitting body to which one end side of the necklace M is connected, and 2 is another end side of the necklace M which is connectable to and removable from the metal fitting body 1. It is the connecting member 2 connected to.
Reference numeral 3 denotes a side lock member which is disposed across at least one side surface in the width direction of the metal fitting body 1 and the connecting member 2 so as to straddle the both 1, 2, and the side lock member 3 is formed of a metal wire in a loop shape. The tip portion 3b is formed into a flat shape. Reference numeral 4 denotes an Ω-shaped locking projection provided on one side surface of the metal fitting body 1 in the width direction.

The metal fitting body 1 is, for example, a U-shaped member 1.
A decorative article connecting frame 13 in which a shaft 12 is installed between both ends of 1,
One end is composed of a pair of connecting pieces 15 and 16 connected to each other via a hinge pin 14, and the other end of the one connecting piece 15 is wound around and supported by the shaft 12 of the connection frame 13 and has a tubular shape. The engaging portion 17 is configured. On the rear surface of the other end of the other coupling piece 16, there is formed an arcuate plate-shaped engagement portion 18 which engages with the tubular engagement portion 17 in a disengageable manner when rotated to the one coupling piece 15 side. Has been done.

The connecting member 2 is, for example, a U-shaped member 2.
A shaft 22 is provided between the both ends of the ornament 1 and is constituted by a decorative article connection frame 23 which is removably inserted into the coupling piece 16.
As a result, the fastener is connected to the fastener body 1 and the connecting member 2
And are configured as a center-folding type that can be displaced relative to each other in the vertical direction.

Reference numeral 5 denotes a pivotal support means fixed to one side surface in the width direction of the connecting member 2 by welding or the like, and the base end portion 3a of the side lock member 3 is in the engagement / disengagement direction with respect to the locking projection 4 ( In addition to the directions of arrows a and b (see FIG. 1), a direction perpendicular to this engaging / disengaging direction, that is, a direction along a vertical plane (arrow c in FIG. 2,
It is set so as to be pivotable in the direction (d direction), and in this example, it is configured by an arch-shaped portion formed from a metal wire rod, and the base end portion 3a of the side lock member 3 is in a substantially free state. Is pivoted to.

The procedure for using the above-mentioned stopper is as follows. The connecting member 2, that is, the accessory connection frame 23 is inserted into the connecting piece 16 with one connecting piece 16 of the metal fitting body 1 opened from the other connecting piece 15 as shown in FIG. Then, it rotates counterclockwise so as to close the one coupling piece 16 and engages the arcuate plate-like engaging portion 18 with the tubular engaging portion 17 of the other coupling piece 15 in a pressure contact manner as shown in FIG. If they are combined, the metal fitting body 1 and the connecting member 2 are connected.

In this state, if the tip portion 3b of the side lock member 3 is rotated in the direction of arrow a and pushed into the locking projection 4,
The tip 3b goes over the head of the locking projection 4 and is engaged as shown in FIG. As a result, the connection state between the metal fitting body 1 and the connecting member 2 is locked, and the careless disengagement of the both 1 and 2 is prevented.

In the use state of the necklace, for example, when the metal fitting body 1 and the connecting member 2 are rotated about the shafts 12 and 14 as fulcrums to be stepped up and down as shown in FIG. Since the base end portion 3a of 3 is pivotally supported by the arch-shaped portion 5 in a substantially free state and can follow the moving direction of the side lock member 3 together with the locking protrusion 4,
The twisting force does not act on the base end portion 3a, and damage or the like is prevented. Further, since the tip portion 3b of the side lock member 3 is not abnormally expanded due to unreasonable force,
Even after repeated use, the function of the side lock member 3 can be effectively maintained.

When the connection between the metal fitting body 1 and the connecting member 2 is released, the side lock member 3 is first unlocked in the reverse order of the above, and then the one connecting piece 15 is released.
The arc-shaped plate-shaped engaging portion 18 of the above may be removed from the tubular engaging portion 17 of the other coupling piece 16. However, at this time, as shown in FIG. 6, the metal fitting body 1 and the connecting member 2 may be in a state of being bent in the middle while carelessly keeping the side lock. Even in such a case, an unreasonable force is not applied to the side lock member 3 similarly to the above, and the side lock function is protected.

By the way, the pivoting means for the base end portion 3a of the side lock member 3 is not limited to that of the above-mentioned embodiment, but is constituted by a mushroom-shaped projection 25 as shown in FIG. 7, for example. In the portion 25, the base end portion 3a of the side lock member 3
Just push in and fit. Of course, in order to support the base end portion 3a of the side lock member 3 as freely as possible, it is necessary to have a dimensionally sufficient play between it and the protrusion 25. If the pivotally-supporting means is constituted by such a mushroom-shaped protrusion 25, it is aesthetically superior and the side lock member 3 can be assembled by touch operation.

In addition to the above, as the pivot means, as shown in FIG. 8, for example, a turntable-shaped rotating body 35 supported on one side surface of the connecting member 2 or a ball as shown in FIG. The base end portion 3 of the side lock member 3 is formed in the insertion holes 35a and 45a formed of the joint 45 and the like.
You may make it insert and support a.

In each of the above examples, the side lock member 3 is provided only on one side surface side of the metal fitting body 1 and the connecting member 2 in the width direction, but the side lock member is also provided on the other side surface side. You may do it.

Further, in each of the above-mentioned examples, the description has been given by taking the center-folding type stopper as an example, but the connecting member 2 is inserted into the metal fitting body 1 and engaged. Even in a so-called plug-in type stopper, the pivotal support structure of the side lock member 3 may be introduced, and in this case also, it is useful for protecting the side lock member 3 from a twisting force due to an inadvertent operation. is there.

Further, as the above-mentioned pivotal support means, FIG.
As shown in FIG. 11, a bearing disk 55 having an elliptical insertion hole 55a having a long hole is attached to one side surface of the connecting member 2, and the base end portion 3a of the side lock member 3 is circular. The curved base end portion 3a is curved in an arc shape and the elliptic insertion hole 5 is formed.
Even if the connecting member 5 is inserted and supported with a slight margin in the direction orthogonal to one side surface of the connecting member 2, the side lock member 3 can be smoothly rotated as shown by the chain line in FIG.

[0025]

As described above, according to the present invention, the base end portion of the side lock member that locks the connected state of the metal fitting body and the connecting member has a surface orthogonal to at least the engaging / disengaging direction in addition to the engaging / disengaging direction. Since it is pivotally supported in the direction along, the relative displacement between the metal fitting body and the connecting member, for example, in the middle folding type, the metal fitting body and the connecting member are stepped up and down with the side lock. In such a case, it is possible to prevent the pivotal support portion of the side lock member from displacing the side lock member and to apply unreasonable stress to the side lock member. it can.

[Brief description of drawings]

FIG. 1 is a plan view showing a stopper of a chain-like ornament according to the present invention in a used state.

FIG. 2 is a perspective view showing a stopper for a chain-like ornament in one embodiment of the present invention.

FIG. 3 is a vertical sectional view showing a fastener of the embodiment.

FIG. 4 is a side view of the stopper according to the embodiment in use.

FIG. 5 is a side view showing a state in which the metal stopper of the embodiment is folded.

FIG. 6 is a side view showing a state in which one coupling piece is opened in a state where the fastener of the embodiment is folded in a middle direction.

FIG. 7 is a perspective view showing another example of the pivotal support means of the side lock member.

FIG. 8 is a perspective view showing still another example of the pivotal support means of the side lock member.

FIG. 9 is a partially cutaway plan view showing another example of the pivotal support means of the side lock member.

FIG. 10 is a side view showing still another example of the pivotal support means of the side lock member.

11 is a partially cutaway plan view of the embodiment shown in FIG.

FIG. 12 is a side view showing a conventional fastener for a chain-like ornament.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal fitting body 2 Connecting member 3 Side lock member 3a Base end part of side lock member 3b Tip part of side lock member 4 Locking protrusion 5,25,35,45,55 Pivoting means a, b Side lock member engagement Release direction c, d Direction along the plane orthogonal to the engagement direction M Chained ornament

Claims (1)

[Claims] 1. A metal fitting body to which one end side of a chain-like ornament is connected, a connecting member to which the other end side of the ornamental goods is connected and which is detachably connected to the metal body, and the metal fitting body and the connecting member. A loop-shaped side lock member, which is disposed across at least one side surface side in the width direction and has a flat end formed of a metal wire rod, and the base end of the side lock member is the metal fitting. Chain-like decoration that is pivotally supported on either side of the main body and the connecting member, and the tip of the side lock member is detachably engaged with the Ω-shaped locking projection provided on the other side. In the metal fittings of the product,
The side lock member is provided with pivoting means for pivotally supporting the base end portion of the side lock member in a direction along at least a plane orthogonal to the engaging / disengaging direction in addition to the engaging / disengaging direction of the side lock member. A fastener for chain-like ornaments.