JP4348125B2 - Fasteners for jewelry - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fastener for a jewelry for fastening a fastening pin used for a jewelry such as a broach to clothing.
[0002]
[Prior art]
Conventionally, this type of stopper has a type in which the end of the stopper pin is fixed by a windmill-type stopper, and a pin that is inserted into the outer cylinder and secured to the outer cylinder is inserted into the outer cylinder. There is a gun type that pushes in and holds the end of the pin and stops. Since the former windmill type stopper has a simple structure, it has a problem that the pin fixing function is lowered during use or the operability is deteriorated, so it is used as a simple type of stopping pin. . On the other hand, the latter type is recognized as a reliable stopper. The following are known as this type of conventional example.
[0003]
As one conventional example, a cylindrical holding member is fitted into a cylindrical case member, a pin provided on the cylindrical case member is passed to a slide groove formed in the cylindrical holding member, and a C-shaped spring is attached to the pin. An attached fastener is known (for example, see Patent Document 1). In addition, the cylindrical member and the rod member are formed by forging or casting, a split groove is formed in the rod member, and the protruding portion formed on the outer peripheral surface of the rod member is locked to the groove portion formed on the inner peripheral surface of the cylindrical member. There has been proposed a retaining mechanism in which a rod member is inserted into and integrated with a cylindrical member (see, for example, Patent Document 2).
[0004]
[Patent Document 1]
JP-A-7-222609 [Patent Document 2]
Japanese Patent Laid-Open No. 11-206423
[Problems to be solved by the invention]
However, since Patent Document 1 has a structure in which a pin and a spring are combined, not only the assembly is troublesome, but also the spring or the like is deformed or damaged during use, so that the operability is poor and it is used for a long time. In addition, it has a problem in terms of durability. In addition, Patent Document 2 has a small number of parts, but is formed by forging or the like, has a small elastic function, and has no processing such as a lock mechanism. Moreover, it has also been a factor in increasing costs.
The present invention has been developed to solve the above-described problems, and the object of the present invention is to facilitate assembly work using the minimum necessary number of parts and ensure the operation of the fastener, It is to provide a fastener that is also effective in reducing costs.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the invention according to claim 1 is directed to a fastener for jewelry that is provided with a fastening pin that is pivotally attached to the accessory body and a fastening mechanism that fastens the free end of the fastening pin. The fastening mechanism is formed of a thin metal plate inside an outer cylindrical member formed of a thin metal plate, and an inner cylindrical member having a split groove is inserted in a freely guideable manner, and the inner cylindrical member is axially inserted into the inner cylindrical member. A fastener for jewelry that has at least two through-grooves formed along the guide groove, and a protrusion projecting between the through-long grooves is provided in a guide groove formed along the axial direction on the outer cylinder member. is there.
According to a second aspect of the present invention, a protrusion press-molded on the inner side of the outer cylinder member is provided so as to be freely guided in a rotation stopper formed on the inner cylinder member and a retaining elongated hole for retaining.
[0007]
According to a third aspect of the present invention, the guide groove is formed in a concave shape on the inner peripheral surface of the outer cylinder member, and locking holes are formed at both ends of the guide groove to lock the protrusions of the inner cylinder member. It is.
[0008]
In the invention according to claim 4, a flat lock surface is formed between the locking hole of the outer cylinder member on the side where the inner cylinder member is inserted and the guide groove.
[0009]
According to a fifth aspect of the present invention, there is provided a clasp for jewelry, wherein a claw piece for fixing a knob is integrally formed at a rear end portion of the inner cylinder member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment in which an example of a fastener for jewelry according to the present invention is applied to a broach will be described with reference to the drawings. FIG. 1 is an enlarged front view showing a state in which a fastener is attached to a broach in the accessory, and FIG. 2 is a perspective view showing parts of the fastener separately.
In FIG. 1, an embodiment applied to a broach as an example of a jewelry main body 1 is provided with a shaft attachment portion 2 and a fastening mechanism 3 on the back surface of the broach 1, and one end portion of a stop pin 4 on the shaft attachment portion 2. Are provided so as to be pivotably mounted, and the free end portion of the locking pin 4 is provided so as to be fixed to the locking mechanism 3. Although this example showed the example of broach 1, it is not restricted to this, It can apply to other accessories.
[0011]
As shown in FIG. 2, the fastening mechanism 3 includes an end portion of a stop pin 4 in which an inner tube member 6 is inserted into an outer tube member 5 so as to be guided and inserted into an end portion side of the outer tube member 5. Can be inserted into the inner cylinder member 6 inserted by being pushed into the outer cylinder member 5 to be locked in the locked state.
[0012]
3 and 4, the outer cylinder member 5 is formed of a sheet metal plate 5a. The plate member 5a is engaged with a projection 7 and a concave guide groove 8 which will be described later, and both ends of the guide groove 8. The holes 9a and 9b are respectively formed, and a flat lock surface 10 is formed between the one locking hole 9a and the guide groove 8 by means such as a press. Further, the insertion groove 11 for receiving the stop pin 4 is cut out at the center end of the plate member 5a, and the enlarged diameter portion 11a is formed at the edge of the insertion groove 11. And this board | plate material 5a is bend-formed, the outer cylinder part 5b and the support part 5c are united and formed, and if the mating surface of the support part 5c is required, it will adhere by brazing means. The molded outer cylinder member 5 is fixed to the back surface of the broach 1 with a support portion 5c by means such as brazing in the state shown in FIG.
[0013]
6, 7 and 8, the inner cylinder member 6 is formed of a thin metal plate 6 a which is an elastic material. The thin metal plate 6 a has at least two through long grooves 12 along one direction (axial direction). 12 is formed, and a protruding portion 13 is formed projectingly at the end position between the through long grooves 12 and 12, and further, a long hole 14 for inserting the protruding portion 7 is formed in the thin metal plate 6a. The inner cylinder member 6 is formed by forming the split groove 15 in both ends of the thin metal plate 6a and forming it into a cylindrical shape. In addition, the nail | claw piece 17 for fixing the knob | pick part 16 to the edge part of the sheet metal 6a is integrally formed.
[0014]
9 and 10, the inner cylinder member 6 having the split groove 15 is inserted from one end of the outer cylinder member 5 while slightly reducing the diameter, the protrusion 13 is fitted into the locking hole 9 b, and The protrusion 7 is inserted into the long hole 14, and the inner cylinder member 6 is pushed into the outer cylinder member 5 so as to be guided and can be taken in and out. In this case, the projecting portion 7 is guided by the elongated hole 14 so as to be freely guided, and functions to prevent the inner cylinder member 6 from rotating and removing.
[0015]
Next, the operation of the above embodiment will be described.
The broach 1 in FIG. 1 is attached to the clothing or the like with a stop pin 4, and then the free end portion of the stop pin 4 is inserted so as to be received from the insertion groove 11 of the outer cylinder member 5 to obtain the state shown in FIG. 9. . In this state, when the knob portion 16 is pressed and the inner cylinder member 6 is pushed into the outer cylinder member 5, the inner cylinder member 5 is reduced in diameter by the elasticity of its own material and the elastic force of the split groove 15. The protrusion 13 is inserted in a freely guiding manner, and the spring action is exerted in the centrifugal direction by the elastic force of the two long through-grooves 12, and is formed in the outer cylinder member 5 together with the insertion of the inner cylinder member 6. While being guided by the guide groove 8, it is reliably guided in the axial direction.
[0016]
In this state, when the inner cylinder member 6 is pushed in, the protrusion 13 is pressed in the centripetal direction at the position of the flat lock surface 10 while drawing a locus as shown in FIG. When it is positioned in the stop hole 9 a, it is fitted and the state shown in FIG. 10 is reached. The stop pin 4 is fitted into the inner cylinder member 6, and the stop pin 4 is fastened to the fastening mechanism 3.
[0017]
As shown in FIGS. 9 and 10, the inner cylinder member 6 is inserted while the projection 7 is guided by the elongated hole 14, so that the inner cylinder member 6 does not rotate with respect to the outer cylinder member 5. Further, since the both ends of the long hole 14 are engaged, the inner cylinder member 6 does not come out of the outer cylinder member 5 and the retaining function is effectively exhibited.
[0018]
At this time, the protruding portion 13 is reliably stopped by the locking of the protruding portion 7 in the elongated hole 14, while the stop function in the pulling direction is that the protruding portion 13 moves in the pulling direction by the flat lock surface 10. The inner cylinder member 6 is surely locked and the inner cylinder member 6 does not move unnecessarily during use, and the situation where the stop pin 4 is inadvertently detached is reliably prevented.
[0019]
In order to remove the retaining pin 4 from the state of FIG. 10, when the knob portion 16 is pulled and the inner cylinder member 6 is pulled out from the outer cylinder member 5, the projecting portion 13 is located at the position of the lock surface 10 and the two through long grooves 12. , 12 as shown in FIG. 11, the lock function is released and the protrusion 13 is pulled out to the position shown in FIG. 9 while being guided in the guide groove 8. In this state, the stop pin 4 can be easily removed from the fixing mechanism 3 by taking it out from the insertion groove 11 of the outer cylinder member 5 and making it into the state shown in FIG.
[0020]
FIG. 12 shows another example of the outer cylinder member. When the locking hole 9b of the outer cylinder member 5 ′ is provided at the position shown in FIG. 12, for example, when the inner cylinder member 6 is pushed in, it is smoothly slid by the pushing operation. However, it is securely locked after being pushed in.
[0021]
【The invention's effect】
From the above, according to the invention according to claim 1, by providing only a material made of thin metal material, the minimum number of parts is required, and a fastener for an accessory that does not exist in the past is provided. Therefore, the assembling work becomes extremely easy, the operability is surely performed, and a cost effective fastener can be provided.
[0022]
According to the invention which concerns on Claim 2, there is no possibility that an inner cylinder member may rotate with respect to an outer cylinder member, or it may come out, and smooth operation can be performed with the guide mechanism of a simple structure.
[0023]
According to the invention of claim 3, the protrusion of the inner cylinder member is securely locked at the end position during pushing and withdrawing while being guided by the guide groove of the outer cylinder member while exhibiting a spring function. Excellent in properties.
[0024]
According to the invention which concerns on Claim 4, since the flat lock surface was formed between the latching hole and guide groove of the outer cylinder member in the side which inserts an inner cylinder member, the stop pin is fastened. Sometimes, the protrusion is securely locked in the locking hole, and the stop pin does not come off during use.
[0025]
According to the invention which concerns on Claim 5, since the nail | claw piece for knob | pick part fixation was integrally formed in the rear-end part of the inner cylinder member, the components for fixation are not required, assembly work becomes easy, and cost reduction is carried out. Contribute.
[Brief description of the drawings]
FIG. 1 is an enlarged front view showing a state in which a stopper is attached to a broach.
FIG. 2 is a perspective view showing parts of a fastener for jewelry.
FIG. 3 is a front view showing an outer cylinder member of a fastener for jewelry.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a front view showing an inner cylinder member of a fastener for jewelry.
6 is a cross-sectional view taken along line BB in FIG.
7 is a cross-sectional view taken along line CC in FIG.
8 is a cross-sectional view taken along the line DD of FIG.
FIG. 9 is a cross-sectional view in which a stop pin is inserted into an outer cylinder member of a stop fitting.
10 is a cross-sectional view of the state in which the inner cylinder member of FIG. 9 is pushed into the outer cylinder member.
FIG. 11 is a partially enlarged explanatory view illustrating the relationship between the protrusion and the lock surface.
FIG. 12 is a partially enlarged sectional view showing another example of the outer cylinder member.
[Explanation of symbols]
1 Jewelery body (brooch)
2 Axle part 3 Fastening mechanism 4 Stopping pin 5 Outer cylinder member 6 Inner cylinder member 6a Sheet metal 7 Protrusion 8 Guide groove 9a, 9b Locking hole 10 Lock surface 11 Insertion groove 12 Through slot 13 Protrusion 14 Slot 15 Split groove 16 Picking part 17 Claw piece

Claims (5)

In a jewelry fitting provided with a fastening pin that is pivotally attached to the jewelry body and a fastening mechanism that fastens the free end of the fastening pin, the fastening mechanism is an outer cylindrical member formed of a thin metal plate. An inner cylinder member that is formed of a thin sheet metal and has a split groove is inserted in a freely guideable manner, and at least two through long grooves are formed in the inner cylinder member along the axial direction. A fitting for a jewelry accessory, wherein a protruding portion projecting from the outer cylindrical member is provided in a guide groove formed along an axial direction in an outer cylinder member so as to be freely guided. The fastener for jewelry as set forth in claim 1, wherein a protrusion formed by press molding on the inner side of the outer cylinder member is provided so as to be freely guided in a rotation stop and a stop long hole for prevention of removal. The accessory according to claim 1, wherein the guide groove is formed in a concave shape on the inner peripheral surface of the outer cylinder member, and locking holes are formed at both ends of the guide groove to lock the protrusions of the inner cylinder member. Fasteners for use. The fastener for jewelry as claimed in claim 3, wherein a flat lock surface is formed between the locking hole and the guide groove of the outer cylinder member on the side where the inner cylinder member is inserted. The clasp for jewelry according to any one of claims 1 to 4, wherein a claw piece for fixing a knob is integrally formed at a rear end portion of the inner cylinder member.

Images