Eyeglass assembly having a coupling unit for coupling...

Details Eyeglass assembly having a coupling unit for coupling... Eyeglass assembly having a coupling unit for coupling...

2002-01-28

2003-03-18

Mai, Huy (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

C351S057000, C351S140000, C351S148000

Reexamination Certificate

active

06533411

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a pair of eyeglasses, more particularly to an assembly of primary and auxiliary eyeglasses which are coupled to each other via a coupling unit.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional eyeglass assembly is shown to include a pair of primary eyeglasses
4
and a pair of auxiliary eyeglasses
3
. The primary eyeglasses
4
includes two primary lenses
41
, a primary bridge
42
that interconnects the primary lenses
41
, and two temples
43
respectively connected to the primary lenses
41
. The auxiliary eyeglasses
3
is disposed frontwardly of the primary eyeglasses
4
, and includes two auxiliary lenses
32
respectively aligned with the primary lenses
41
, and an auxiliary bridge
31
that is aligned with the primary bridge
42
, and that has an anchor portion
313
disposed rearwardly of the primary bridge
42
, and a pair of connecting rods
312
extending integrally from the anchor portion
313
and connected securely to the auxiliary lenses
32
so as to define a bridge-receiving space between the anchor portion
313
and the auxiliary lenses
32
for receiving the primary bridge
42
when the auxiliary eyeglasses
3
is mounted on the primary eyeglasses
4
.
One drawback of the aforesaid conventional eyeglass assembly resides in that the auxiliary eyeglasses
3
is only suitable for use with a specific primary eyeglass
4
, since the dimensions of the bridge-receiving space cannot be changed.
In order to eliminate the above-mentioned drawback, another conventional eyeglass assembly has been proposed, and is shown in
FIGS. 2 and 3
to include a pair of primary eyeglasses
2
and a pair of auxiliary eyeglasses
1
. The primary eyeglasses
2
includes two primary lenses
21
, a primary bridge
22
that interconnects the primary lenses
21
, and two temples
23
respectively and pivotally connected to the primary lenses
21
. The auxiliary eyeglasses
1
is disposed frontwardly of the primary eyeglass
2
, and includes two auxiliary lenses
11
respectively aligned with the primary lenses
21
, and a coupling rod unit
12
having two clamps
121
respectively clamping the auxiliary lenses
11
, a bridging rod
123
bridging the clamps
121
, and a pair of sticks
124
that extend from the clamps
121
toward the primary lenses
21
and that can be folded to hook on upper portions of the primary lenses
21
so as to prevent untimely removal of the auxiliary eyeglasses
1
from the primary eyeglasses
2
.
Although the auxiliary eyeglasses
1
is adapted to be mounted on the primary eyeglasses
2
having the primary bridge
22
of different thickness, it is relatively difficult to accurately bend the sticks
124
in order to hook properly on the primary lenses
21
. Moreover, the sticks
124
are susceptible to breaking.
SUMMARY OF THE INVENTION
The object of this invention is to provide a relatively simple assembly of primary and auxiliary eyeglasses with a coupling unit that is capable of overcoming the aforesaid drawbacks as encountered in the prior art.
Accordingly, an auxiliary eyeglass assembly of the present invention is adapted to be mounted frontwardly on a pair of primary eyeglass assembly which includes a primary bridge interconnecting two primary lenses, and two temples respectively connected to the primary lenses. The auxiliary eyeglass assembly accordingly includes two auxiliary lenses and a coupling unit. The auxiliary lenses are adapted to be disposed frontwardly of and aligned with the primary lenses respectively. The coupling unit includes a hook member adapted to be hooked on the primary bridge, a first threaded unit extending in a transverse direction relative to the primary bridge and the hook member and selectively connected to one of the hook member and the auxiliary lenses, and a mounting unit selectively connected to the other one of the hook member and the auxiliary lenses with the first threaded unit extending through the mounting unit. The coupling unit further includes a second threaded unit mounted threadedly on the first threaded unit and adjustably abutting against two opposite sides of the mounting unit so as to permit adjustment and positioning of the auxiliary lenses relative to the primary lenses.


REFERENCES:
patent: 5936700 (1999-08-01), Masunaga
patent: 6244704 (2001-06-01), Xiao

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