JPH0436004B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a method and device for fixing jewelry such as diamonds to rings, watch bands, and other jewelry.

b. Conventional technology Conventionally, when fixing jewelry such as diamonds to a ring, etc., the base material for the base on which the jewelry is fixed is
They were carved with a chisel and provided with claws, which were used to hold down the circumference of the gemstone to secure it in place.

c Problems to be Solved by the Invention As mentioned above, the conventional method has the problem of extremely inefficiency and inconsistent quality because the jewelry is manually attached by providing individual fixing claws. It was hot.

The present invention has been made in view of the above circumstances, and provides a method and device for fixing jewelry that improves and streamlines the conventional manual method and allows products of stable quality to be obtained. The purpose is to provide.

d Means for Solving the Problems In accordance with the above object, the present invention provides a base for fixing jewelry with a plurality of nails, and then one of the nails is placed on the outside of the nails along the axial direction of the nails. A ring having a plurality of grooves on the inner wall into which the parts are inserted is fitted, and the parts of the claws protruding inside the ring are simultaneously cut with a cutter that goes in and out of the inside of the ring to form a claw with a reduced cross section, The above-mentioned problem is solved by pressing and bending the nails at the same time using a fixing device to fix the jewelry on the base, and also using a press to push the nails into the base and fitting a part of the nails. A ring with a plurality of grooves on its inner wall, a cutter that is pushed inside the ring and cuts off the claws fitted into the inner wall of the ring in the axial direction, a movable die for installing the base, and a cutter that is arranged vertically in correspondence with the movable die. The punch consists of a recess facing the base on the movable die, a plurality of guide grooves that guide and bend the claws of the base on the surface of the recess, and a groove attached downward. The above-mentioned problem has been solved by providing a jewelry fixing device characterized in that it is equipped with a pressed and slidable presser foot.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIGS. 1 to 8 illustrate the procedure and apparatus for fixing a diamond to a watch band piece, using the piece as a base for fixing jewelry. That is, in FIG. 1, numeral 1 is one of a large number of pieces that are arranged in series to form a watch band, and this piece 1 is provided with a hole 2 for accommodating a diamond. Reference numeral 5 denotes a hole-drilling tool, which has four punches 6 at its lower part, and uses the tool to punch holes 7 around the holes 2 on the top surface of the top 1 set on the table.

Next, using the punch hole 7 as a guide, a hole is made to erect a claw (described later).

On the other hand, a stand 10 with four holes is provided separately, and a claw 12 having a circular cross section is attached to the stand 10 which has been prepared in advance.
is maintained upright as shown in Figure 2. Claw 12
The top is semi-spherical.

Next, the top 1 with four holes is turned over from above the stand 10 with four claws 12 set up,
It is pressed by a press 13 as shown in FIG. FIG. 3 shows the piece 1 with four claws 12 planted in this manner.

Next, a separate ring 2 was installed on top 1 in this state.
0 is fitted on the outside of the four claws 12 as shown in FIG.

The ring 20 is provided with the same number of grooves 21 having a semicircular cross section on the inner wall 22 at positions corresponding to the four pawls 12 of the top 1, and each pawl 12 of the top 1 is fitted into the grooves 21.

Next, a cutter 25 in the shape of a round bar with a diameter approximating the inner diameter of the ring 20 is pushed into the hole of the ring 20, and approximately half of the diameter of the claw 12 is cut off along the axial direction.

When the ring 20 is removed from the top 1, the upper part exposed from the top 1 is the claw 1 with a semicircular cross section.
2 is obtained, and the piece 1 with the claw 12 arranged around the hole 2 is obtained (see FIG. 5).

This completes the work of planting the claws to fix the diamond to the top.

Next, I will explain the device and procedure for fixing the diamond to the top.

5 to 8, 31 is a lower movable die, 36 is a die holder for holding the movable die 31, and 40 is an upper punch.

The movable die 31 has a T-shaped cross section, has a recess 32 on its upper surface into which the piece 1 with a claw is inserted, and a spring 33 is fitted between it and the lower die holder 36. . Further, a guide groove 34 is provided in the movable die 31, and a pin 37 provided on the die holder 36 is inserted into the guide groove 34, so that the movable die 31 can be moved relative to the die holder 36 while being guided by the pin 37. be.

The die holder 36 is fixed to a frame (not shown).

The punch 40 has a recess 42 having an arcuate surface at its tip, a through hole 43 in the upper and lower axial directions, a spring 44, a spring receiving hole 45 that accommodates the spring 44, and the spring 44 and the through hole 43.
A nut 49 provided in a hole 48 in the upper part of the punch is screwed onto the upper end of the presser foot 46, so that the presser foot 46 can slide within the through hole 43, and the lower end of the presser foot 46 The structure is such that the position can be adjusted to a predetermined position.

The recess 42 has a groove 50 having an arcuate cross section extending from the lower end of the recess 42 to the lower end of the spring receiving hole 45.
4 pieces, along the surface of the recess 42, attach the claw 12 of top 1.
(See FIG. 5 and the perspective view of FIG. 6, which shows the punch 40 inverted).

Now, as shown in FIG. 5, after fitting the piece 1 with a claw into the recess 32 of the movable die 31, a diamond 60 is set in the hole 2 of the piece 1.

Next, when the punch 40 is pushed down, the presser foot 46
The lower surface of the diamond 60 comes into contact with the upper surface of the diamond 60, and the spring 44 with a weak urging force gradually bends while pressing the diamond 60.

In this way, the tip of the claw 12 is connected to the groove 5 of the recess 42.
When the tip of the claw 12 comes into contact with the tip surface of the recess 4
It is guided by the groove 50 provided in 2 and is gradually pushed and bent inward. That is, it is guided in the correct direction by the groove 50 and bent. Finally, as shown in FIG.
becomes pressed and bent.

When the punch 40 is returned to its original position, the piece 1 with the diamond 60 held and fixed by the four claws 12 is obtained as shown in FIG.

e. Effects of the Invention As described above, according to the present invention, when fixing jewelry to a base such as a ring, a watch band, or other jewelry, nails for fixing the jewelry to the base can be efficiently planted. The jewelry can be automatically and correctly fixed to the base.

Therefore, work efficiency is improved and products with consistent quality can be obtained.

[Brief explanation of drawings]

FIGS. 1 to 8 are explanatory views of embodiments of the jewelry fixing method and device according to the present invention, and FIGS.
FIG. 4 is an explanatory diagram of a case in which a claw for fixing jewelry is embedded in a watch piece, and FIGS. 5 to 8 are explanatory diagrams in a case of fixing jewelry to this piece. 1... Watch band piece, 12... Nail, 20...
...Ring, 21...Groove, 25...Cutter, 31
...movable die, 40...punch, 42...recess, 46...presser foot, 50...groove, 60...diamond.

Claims (1)

[Scope of Claims] 1. After a plurality of claws are planted on a base for fixing jewelry, a plurality of grooves into which a portion of the claws are inserted are formed on the outside of the claws along the axial direction of the inner wall. A ring prepared for this purpose is fitted, and the parts of the claws that protrude inside the ring are simultaneously cut with a cutter that goes in and out of the ring to form a claw with a reduced cross section, and the claws are simultaneously cut by a fixing device. A method for fixing jewelry, characterized by fixing the jewelry on a base by pressing and bending. 2. A press for pushing a claw into a base, a ring having a plurality of grooves on an inner wall into which a part of the claw is inserted, and a cutter for pushing into the inside of the ring and axially scraping off the claw fitted into the inner wall of the ring. It consists of a movable die on which the base is installed, and a punch that moves up and down in response to the movable die. A jewelry fixing device characterized by comprising a plurality of guide grooves that guide and bend a nail, and a slidable presser foot that is biased downward.