Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Bridges
Patent
1990-07-17
1992-07-07
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Bridges
351 41, G02C 502
Patent
active
051277239
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to an eyeglass frame employing a material which is extremely difficult to work, for example, an NT alloy (shape memory alloy).
2. Background Art
A conventional eyeglass frame of this type is shown as an eyeglass frame 100 in FIG. 4. The eyeglass frame 100 is made of an NT alloy (shape memory alloy) and comprises rims 102 which support eyeglass lenses 101, respectively. A temple 104 is connected to each of the rims 102 by means of a side joint 103. A bridge 105 is mounted to connect the rims 102. The bridge 105 is of an inverted-U shape and has two ends 105a and 105b. The ends 105a and 105b are connected to the respective rims 102 to support the pair of rims 102.
In this arrangement, a wire which forms the rims 102 and bridge 105 has a general thickness.
However, the eyeglass frame 100 according to the above-described prior art has the problem that, since the bridge 105 is formed from a single wire, the eyeglass frame 100 has a weak strength and the rims 102 are relatively displaced and deformed by forces applied to the eyeglass frame 100.
To solve the above-described problem, if the bridge 105 is made thick to increase the strength, the external appearance or design of the eyeglass frame 100 is adversely affected.
DISCLOSURE OF THE INVENTION
The present invention has been devised in light of the above-described prior art problems, that is, the fact that the strength of a bridge is weak and an eyeglass frame is easily deformed, as well as for the purpose of improving an appearance which constitutes design. In an eyeglass frame comprising rims for supporting a pair of right and left eyeglass lenses and a bridge for connecting the rims, the bridge has a dual structure and opposite ends of the respective bridges are connected to the front and rear portions of the rims. In this arrangement, the rims are not relatively bent due to forces acting on the eyeglass frame, so that it is not necessary that a bridge is mounted on the upper portions of the rims since the two bridges completely support the rims of the eyeglasses to prevent the eyeglasses from being deformed.
Accordingly, since the configuration of the upper portions of the rims can be freely altered in accordance with the demands of users, it is possible to provide many kinds of design, whereby excellent design can be created.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front elevational view showing an eyeglass frame according to the present invention;
FIG. 2 is a side elevational view showing the eyeglass frame according to the present invention;
FIG. 3 is a plan view showing the eyeglass frame according to the present invention; and
FIG. 4 is a plan view showing an eyeglass frame according to a prior art.
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a front elevational view showing an eyeglass frame according to the present invention, and the eyeglass frame is indicated generally at 1. The eyeglass frame 1 comprises a pair of rims 2. Each of the rims 2 is provided with a lens 3 having a substantially circular shape. Side joints 4 are provided on both sides of the substantially circular lenses 3. Temples 5 are secured to the respective side joints 4 for pivotal motion with respect to the corresponding rims 2.
The eyeglass frame 1 is also provided with a bridge 6 for connecting the rims 2 to each other. The bridge 6 has an inverted U-shaped form, and a bottom 6c is slightly bent forwardly and has ends 6a. Engagement tubes 7a formed of nickel silver or the like are secured to the opposite ends 6a of the bridge 6. The securing of the engagement tubes 7a is performed by inserting the engagement tubes 7a into the opposite ends 6a of the bridge 6 and externally pinching the engagement tubes 7a.
The engagement tubes 7a may be inserted into the opposite ends 6a of a bridge 6 having a straightforward shape and, after the engagement tubes 7a have been externally pinched, the brid
Bovernick Rodney B.
Murai Co., Ltd.
LandOfFree
Eyeglass frame with dual structure bridge member does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Eyeglass frame with dual structure bridge member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eyeglass frame with dual structure bridge member will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1825720