Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Pince-nez type
Reexamination Certificate
2003-11-06
2004-09-21
Dang, Hung Xuan (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Pince-nez type
C351S078000, C351S136000, C351S137000, C351S138000
Reexamination Certificate
active
06793337
ABSTRACT:
BACKGROUND OF THE INVENTION
I. Field of the Invention
This invention relates generally to a nose pad of eyeglasses and, more specifically, to a nose pad of eyeglasses that can be stably fixed, that can be easily installed and removed by a user, and which avoids scratches and breakage during installation and removal.
II. Description of the Prior Art
Heretofore, the traditional nose pad of eyeglasses shown in
FIGS. 1 and 2
, includes a nose rack
10
a
, a fastener
20
a
and a nose pad
30
a
. An open hole
11
a
is formed on the nose rack
10
a
, and an insertion head
22
a
and a neck
21
a
are on the fastener
20
a
. The insertion head
22
a
passes through the open hole
11
a to have the neck
21
a
in the open hole
11
a
and to have the fastener
20
a
installed on the nose rack
10
a.
Based on the structure described above, in order to have the fastener
20
a
and the nose rack
10
a
combine properly to prevent the fastener
20
a
from falling, the width of the insertion head
22
a
must be larger than that of the open hole
11
a
. Even though the top of the insertion head
22
a
has a smooth curved shape and is easy to insert, users have to push hard to have the insertion head
22
a
into the open hole
11
a
, so that the operation consumes lots of time and strength. Since the width of the insertion head
22
a
is larger than that of the open hole
11
a
, when users want to replace the nose pad
30
a
, they have to use tools and apply heavy strength to pull the insertion head
22
a
out of the open hole
11
a
. During installation and replacement, users have to apply heavy strength that might introduce scratches and breakage.
Another prior art device is shown in
FIG. 3
, FIG.
4
and
FIG. 5
(U.S. Pat. No. 6,079,825). This device includes a nose rack
30
b
, a fastener
20
b
and a nose pad
2
b
. An open hole
31
b
is formed in the nose rack
30
b
, and an insertion head
22
b
and a neck
21
b
are on the fastener
20
b
. A center slot
23
b
is formed on the insertion head
22
b
. The center slot
23
b
divides the insertion head
22
b
into two on the center area. The insertion head
22
b
is larger than the open hole
31
b
. When the insertion head
22
b
passes through the open hole
31
b
, the two sides of the insertion head
22
b
are pressed by the open hole
31
b
toward the center slot
23
b
and pass through the open hole
31
b
to install the fastener
20
b
on the nose rack
30
b.
Based on the structure described above, the center slot
23
b
on the insertion head
22
b
offers compression space to let the insertion head
22
b
more easily pass into the open hole
31
b
. However, the insertion head
22
b
will expand inside the open hole
31
b
after it passes through the open hole
31
b
. This arrangement prevents the neck
21
b
from moving freely in the open hole
31
b
, so that the fastener
20
b
and the nose pad
2
b
cannot be adjusted and so that the nose pad
2
b
cannot fit properly on user's noses. Users thus might feel uncomfortable and irritation, and the touching area of nose pad
2
b
might cause the user's nose to swell and be painful.
SUMMARY OF THE INVENTION
It is therefore a primary object of the invention to provide a nose pad of eyeglasses that can be fixed stably, users can install and remove them easily.
It is a further object of this invention to provide a nose pad of eyeglasses that can avoid scratches and breakage during installation and removal.
In order to achieve the objective set forth, a nose pad of eyeglasses in accordance with the present invention comprises a nose rack, a fastener and a pad; an axis is on the nose rack, a sleeve corresponding to the axis is on the fastener, an insertion hole is on the sleeve for the axis to insert, the open of the insertion hole is smaller than the diameter of the axis.
Based on the structure described above, the axis and the sleeve combine the nose rack and fastener together, the open of the insertion hole is smaller than the diameter of the axis, the nose rack and fastener can be fixed stably; the sleeve can move freely inside the insertion hole, installation and removal are very convenient. The width of the stem is smaller than that of the open hole; users can adjust the nose pad anytime.
In the application, the axis and the sleeve combine the nose rack and fastener together, the open of the insertion hole is smaller than the diameter of the axis, the nose rack and fastener can be fixed stably, the present invention has following advantages over the prior art:
1. Easy to assemble: a sleeve having elasticity with a insertion hole is on the fastener; while installation, users only have to have the insertion hole of the sleeve aim at the axis and push, the insertion hole of the sleeve opens slightly by the pressure from the axis, the insertion hole returns to normal after the insertion of the axis, the open of the insertion hole is smaller than the diameter of the axis to make the nose rack and fastener combine together, such assembly is fast and easy.
2. Easy to disassemble: the sleeve has elasticity, while disassembly, users only have to pull the axis out from the insertion hole of the sleeve, the insertion hole opens slightly and the axis can be pulled out smoothly, the operation is fast and easy without any tool.
3. No scratches and breakage: the top of the stem is very smooth without sharp point and is easy to install and remove without scratches and breakage, the usage life is longer.
REFERENCES:
patent: 4806009 (1989-02-01), Sordillo et al.
Dang Hung Xuan
Rabin & Berdo P.C.
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