Note: Descriptions are shown in the official language in which they were submitted.
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COMBINING STRUCTURE OF A PRIMARY SPECTACLE FRAME WITH
AN AUXILIARY SPECTACLE FRAME
BACKGROUND OF THE INVENTION
This invention relates to a combining structure of
a primary spectacle frame with an auxiliary spectacle
frame, particularly to one having two magnetic members
respectively disposed in a primary spectacle frame and
an auxiliary spectacle frame so that the two magnetic
members are positioned abutting and attracting each
other, with an extension respectively formed at two
sides of an auxiliary spectacle frame and extending
across on each connecting portion formed at two sides of
the primary spectacle frame like a hook so as to fix the
auxiliary spectacle frame with the primary spectacle
frame securely.
Common spectacles of myopia, hyperopia, and astig-
matism are not provided with an anti-sunlight lenses,
except color changing lenses, which become darker in
case of stronger light and less colored in case of
weaker light. But they gradually become tired owing to
a long period of use, unable to change as it used to,
becoming useless. And now most commonly seen are auxi-
liary spectacle frames with colored lenses attached with
common spectacles.
A typical spectacle frame having an attachable
one-piece slide-on rim is disclosed in U. S. Pat. No.
4.070,103 to Mooker. In Mooker, a spectacle frame in-
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cludes a magnetic material secured to the peripheral
portion thereof for facilitatlng attachment of the
- auxiliary lens rim cover to the spectacle frame. The
lens rim cover also includes a magnetic strip for engag-
ing with the magnetic material of the spectacle frame.
Another typical eyeglasses are disclosed in U. S.
Pat. No. 5,416,537 to Sadler and comprise first magnetic
members secured to the temporal portion of the frame and
second magnetic member secured to the corresponding tem-
poral portions of the auxiliary lenses.
But in wearing the two kinds of spectacles justreferred, the wearer's head will push the temples out-
ward, changing the curvature of the spectacle frame,
with the sunlight spectacle frame receiving no force
and keeping the original condition. Then the contact
dimensions of the first magnetic member and the second
magnetic member becomes smaller, causing the auxiliary
frame to separate from the primary frame. In addition,
since the first magnetic member is located at the same
level with the frame, the second magnetic member will
attract dirt from an upper surface of a table when the
sunlight spectacle frame is taken off and placed on the
table. Consequently, mutual attraction of the second and
the first magnetic member may be weakened.
In both the eyeglasses, the auxiliary lenses are
simply attached to the frames by magnetic materials and
have no supporting members for preventing the auxiliary
lenses from moving downward relative to the frames such
that the auxiliary lenses may easily move downward rela-
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tive to the frames and may be easily disengaged from the
frames when the users conduct jogging or jumping exer-
cises. In addition, the magnetic materials are embedded
in the frames of the primary lenses and of the auxiliary
lenses such that the frames should be excavated with
four or more cavities for engaging with the magnetic
members and such that the strength of the frames is
greatly decreased.
Auxiliary lenses for eyeglasses disclosed in U. S.
Pat. No. 5,568,207 includes a first magnetic member at
a rear and a side portion of two side extensions of a
primary spectacle frame, and an auxiliary spectacle
frame includes two arms hung on the primary spectacle
frame and each having a magnetic member for engaging
with the magnetic members of the primary spectacle frame
so as to secure the spectacle frames together so as to
prevent the auxiliary spectacle frame from moving down-
ward relative to the primary spectacle frame. So even if
a user might jog or jump, the arms would be hung and
supported on the upper portion of the primary spectacle
frame so that the auxiliary spectacle frame might be
stably supported secured to the primary spectacle
frame and would not move downward relative to the pri-
mary spectacle frame nor easily disengaged from the pri-
mary spectacle frame.
Though above-mentioned U.S. Pat. No. 4,070,103, No.
5,416,537, No. 5,568,207 all adopt magnetic members to
engage with primary spectacle frames and auxiliary
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spectacle frames, they all result in a number of
disadvantages when they are worn. For instance, wearers
use them improperly, or magnets lose the magnetism
naturally. According to these reasons, the auxiliary
spectacle frames of U.S. Pat. No. 4,070,103 and No.
5,416,537 can not attach to the primary spectacle frame
any longer; as to the auxiliary spectacle frame of U.S.
Pat. No. 5,568,207, it still can be hung on the primary
spectacle frame by using arms hung at a rear and a side
portion of two side extensions of the primary spectacle
frame after the magnetism, but the arms are merely hung
on the primary spectacle frame, they do not hook each
other. So, it is obvious to know when the wearer is
exercising, jogging and jumping or touches the auxiliary
spectacle frame carelessly, they may easily make the
auxiliary spectacle frame fall down from the primary
-spectacle frame.
However, our structure has overcome the
disadvantages of the above-referred U.S. Pat. No. 4,070,
103, No. 5,416,537 and No. 5,568,207. Namely, the
feature of our structure has improved the disadvantages
as above-mentioned and made the auxiliary spectacle
frame firmly.
SUMMARY OF THE INVENTION
This invention has a purpose to offer a combining
structure of a primary spectacle frame with an auxiliary
spectacle frame, which will not disengage from the pri-
mary spectacle frame, even if the first and the second
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magnetic members should lose magnetism, the former would
not disengage from the latter in jogging and jumping
- exercise.
A main feature of the invention is a recess formed
on the first magnetic members buried in a connecting
portion at two sides of the primary spectacle frame for
the second magnetic members provided on the auxiliary
spectacle frame to fit in and attracting with each
other.
BRIEF DESCRIPTION OF DRAWINGS
This invention will be better understood by refer-
ring to the accompanying drawings, wherein:
Figure 1 is an exploded perspective view of a
combining structure of a primary spectacle frame with an
auxiliary spectacle frame in the present invention;
Figure 2 is a cross-sectional view of the combin-
ing structure of a primary spectacle frame with an auxi-
liary spectacle frame in the present invention;
Figure 3 is a rear perspective view of this struc-
ture applied to a metal spectacle frame;
Figure 4 is a partial enlarged view of Fig. 3;and,
Figure 5 is a partial enlarged view of Fig. 3
combined together.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
A preferred embodiment of a combining structure of
a primary spectacle frame with an auxiliary spectacle
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frame in the present invention, as shown in Figs. 1 - 5,
includes a primary spectacle frame 1 for lenses 11, and
an auxiliary spectacle frame 2 for anti-sunlight lenses
21.
The primary spectacle frame 1 is made of plastics
as shown in Fig. 1, or of a metal shown in Fig. 3,
having a connecting portion 12 respectively at two
sides. The connecting portion 12 is pivotally
connected with a temple 13 and having a first magnetic
member 14. The auxiliary spectacle frame 2 has a second
magnetic member 14. magnetic member 22.
A special feature of the present invention is that
the first magnetic member 14 is disposed on an inner
side of the connecting portion 12 of the primary
spectacle frame 1, and an upper surface of the first
magnetic member 14 is lower than an upper surface of the
connecting portion 12, defining a recess 15 on the first
magnetic member 14. Furthermore, the diameter of the
recess 15 is a little larger than that of the first
Another special feature of the invention is that
the auxiliary spectacle frame 2 has an extension 23
respectively at two sides and a vertical portion 231
extending down from the extension 23. Then a gap is
formed between the vertical portion 231 and the body
of the auxiliary spectacle frame 2 for the primary spec-
tacle frame 1 to fit therein, with the extension 23
striding over an upper side of the connecting portion 12
of the first spectacle frame 1 like a hook. Also, a
second magnetic member 22 is fitted in an inner surface
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of the vertical portion 231 of the extension 23, pro-
truding out to fit in the recess 15 by mutual attraction
with the first magnetic member 14 so that the auxiliary
spectacle frame 2 may be stabilized on the primary
spectacle frame 1.
As it can be understood from the aforesaid
description, this combining structure of a primary
spectacle frame with an auxiliary spectacle frame
has the following advantages.
101. As the first magnetic member is hidden in the
inner side of the vertical portion of the extension of
primary spectacle frame, it doesn't affect the outer
look of the whole spectacle.
2. Even if the curvature of the primary spectacle
frame changes due to a head movement of a wearer, the
magnetic member is still strongly engaged in the recess
in a limited scope that the auxiliary spectacle frame
may be kept securely in place with primary spectacle
frame.
203. The primary spectacle frame and the auxiliary
spectacle frame are kept together by means of the first
and the second magnetic member, and they are also kept
in the L-shaped gap formed by the vert.ical portion of
- the extension of the auxiliary spectacle frame, with the
extension striding across on the connecting portion of
the primary spectacle frame, so, in case the frames are
used improperly by wearers or the lost magnetism of the
magnetic members, our invention can still keep the
auxiliary spectacle frame hooked on the primaly
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spectacle frame firmly.
4. As the second magnetic member is not disposed
on the same level with the second spectacle frame, it
cannot contact with an upper surface of a table when
the primary spectacle frame is taken down and placed
thereon; with tiny dirt not sticking on it to worsen
attracting force of the second magnetic members.
While the preferred embodiment of the invention
has been described above, it will be recognized and un-
derstood that various modification may be made thereinand the appended claims are intended to cover all such
modifications which may fall within the spirit and scope
of the invention.
