Metal working – Method of mechanical manufacture – Jewelry or locket making
Reexamination Certificate
2000-02-29
2002-10-29
Echols, P. W. (Department: 3726)
Metal working
Method of mechanical manufacture
Jewelry or locket making
C029S417000, C029S516000, C029S896420, C072S416000
Reexamination Certificate
active
06470571
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a decorated adjustor for necklace or choker, and a method for producing same. Particularly, the decorated adjustor is disposed between an ornament and setting rings of the necklace or choker, and has a hole through which a chain of the necklace or choker passes, when the decorated adjuster is mounted in the chain.
BACKGROUND OF THE INVENTION
The decorated adjustor for necklace or choker is arranged between an ornament in which a jewel such as a diamond, a pearl or etc. is mounted, and coupling rings for coupling one end of a chain with other end of the chain in the necklace or choker so that the necklace is made more pretty or the size of ring formed around a wearer's neck by the chain in the necklace or choker is adjusted, when a wearer wears the necklace or choker.
The present invention relates to a prior art, which is disclosed in Japanese Laid-Open patent Publication No. 2000-50920.
FIGS. 6A-6D
are schematic views illustrating a method for producing the conventional decorated adjustor for necklace or choker. The conventional decorated adjustor for necklace or choker will be described with reference to a drawing illustrated in a fourth step in FIG.
6
D.
The decorated adjuster for necklace or choker comprises a sphere
11
which has a hollow
13
therein. The sphere
11
had apertures
14
,
14
provided in face to face relation at the desired place for inserting and passing the chain
12
in the necklace or choker. The hollow
13
is filled with a silicon elastomer
15
.
With the construction described above, the conventional decorated adjustor for necklace or choker is produced as follows.
Referring to
FIG. 6A
, in a first step, a pair of hemispheric elements
11
a
and
11
b
were joined to each other in a brazing or thermal deposition, whereby they were formed in a sphere
11
. Apertures
14
,
14
were then bored in a outer surface of the sphere
11
in face to face relation to one another.
In a second step (FIG.
6
B), the sphere
11
was set in a mold
16
for drawing silicon rubber into a hollow
13
from the apertures
14
,
14
thereof. At that time, the sphere
11
was heated to cause the silicon rubber to be crosslinked to the sphere
11
. Thus, the sphere
11
was filled with silicon elastomer
15
.
In a third step (FIG.
6
C), a small hole was bored in the silicon elastomer from the holes
14
,
14
by a a needle.
Finally, in a fourth step (FIG.
6
D), a chain
12
was inserted and passed through the apertures
14
,
14
and the small bore. Thus, a necklace or choker having the sphere
11
, the decorated adjuster, was produced.
As described above, the conventional fashion in which the sphere
11
was produced by the brazed or thermally deposed hemispheric elements
11
a
,
11
b
, in which the silicon rubber was drawn into the hollow
13
of the sphere
11
set in the mold
16
, and in which the small bore was bored through the silicon elastomer, had a problem of increase in difficulties in the production and the increased cost of production, depending on the small-sized decorated adjuster.
SUMMARY OF THE INVENTION
In order to solve the problems described above, an objective of the present invention is to provide a decorated adjuster for necklace or choker facilitating the production and allowing the decrease in cost of production, and a method for producing same.
In order to attain the above objective, the present invention provides a decorated adjustor for necklace or choker which is mounted at a desirable place of a chain in a necklace or choker, which is worn around and hung from a wearer's neck. The decorated adjuster
1
for necklace or choker comprises a shell element
1
c
made of precious metal, the shell element being hollow and having two apertures
1
a
,
1
b
having size slightly larger than that of a diameter of the chain in the necklace, the apertures being bored in a place of the shell element in face to face relation to each other, the shell element having an elastic element
1
d
coated over the inner surface thereof, as shown in
FIGS. 1 and 5
.
The elastic element
1
d
in the decorated adjuster for a necklace or choker may comprise silicon rubber.
The elastic element
1
d
in the decorated adjuster for a necklace or choker may comprise natural rubber.
The shell element
1
c
in the decorated adjuster for a necklace or choker may comprise sphere.
The shell element
1
c
in the decorated adjuster for a necklace or choker may comprise a mirror ball.
A first method for producing the decorated adjuster for a necklace or choker comprises the steps of producing a raw material
4
, which comprises a metal pipe
2
and an elastic tube
3
fitted in the metal pipe
2
; intermittently rotating the raw material
4
while intermittently moving the raw material
4
along an axis; intermittently pressing the raw material
4
with a pair of molds
5
each having a plurality of concave surfaces
51
,
52
,
53
and
54
such that an original form
1
c′
of the decorated adjustor for a necklace or choker will be progressively formed between a rear and a front ends in the moving or traveling direction, whereby a plurality of the shell elements
1
c
connected to one another are formed; and cutting the connected shell element
1
c.
A second method for producing the decorated adjustor for a necklace or choker comprises the steps of producing a raw material
4
comprising a metal pipe
2
and an elastic tube
3
fitted in the metal pipe
2
; intermittently moving the raw material
4
along an axis; intermittently pressing the raw material
4
with a pair of molds
5
each having a plurality of concave spherical surfaces
51
′,
52
′,
53
′ and
54
″ which are formed in the approximately same shape as a profile of the decorated adjustor, such that a plurality of the shell element
1
c
connected to one another are formed; and cutting the connected shell element
1
.
REFERENCES:
patent: 2434008 (1948-01-01), Osborn
patent: 3284882 (1966-11-01), Marchesan
patent: 3466910 (1969-09-01), Carlsen
patent: 63118817 (1988-08-01), None
patent: 3042071 (1997-10-01), None
patent: 3056705 (1998-12-01), None
patent: 11046826 (1999-02-01), None
patent: 3063739 (1999-08-01), None
patent: 2000-50920 (2000-02-01), None
Echols P. W.
Jordan and Hamburg LLP
Namiki Co., Ltd.
LandOfFree
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