JPS6241293Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention widens the dimension between the free ends of the temples compared to the width dimension of the front frame, and the interpupillary distance is short compared to the face width dimension. The present invention relates to the disclosure of an eyeglass frame for eyeglass wearers, or especially for eyeglass wearers who desire a small lens frame.

(Prior Art) In the past, eyeglass frames of this type have been put into practical use in a wide variety of ways depending on the purpose of use, design requirements, materials used, etc. Since the front frame and the side frames are orthogonal to each other, the width dimension of the front frame is naturally specified in accordance with the wearer's unique facial width.

(Problems to be Solved by the Invention) Such a frame configuration causes inconveniences, especially for those who are expected to be typical glasses wearers and who have a natural pupil distance proportional to the so-called face width. Although this is not a problem, in many ordinary glasses wearers, the pupil position is often located inward compared to the width of the face, which causes many inconveniences.

That is, if the center position of the lens frame in the front frame happens to be the pupil position of the eyeglass wearer, the lens focal point is placed at the center of the lens frame, and the cut thickness width at the periphery can be made uniform. .

In such an ideal situation, if the lens were to be fitted into a concave lens frame for myopia, the thickness of the peripheral cut portion would be the minimum necessary, and glasses with fewer Newtonian rings would be used in comparison to the lens power used. That's what I got.

In addition, in such a lens fitting method, it is sufficient that the lens to be fitted into the frame used has the smallest diameter, and for example, when fitting a convex lens, the thickness of the lens used can be kept to the necessary minimum. It is something.

However, when actually wearing glasses, the pupil point is actually biased inward from the center position of the lens frame, and the lens is cut and fitted with the focus position aligned with this biased pupil position. This made it necessary to use a lens larger than the actual frame diameter.

In other words, when fitting a concave lens, if the focal point is biased toward the inside of the frame, a lens of a size that extends from the center position of the lens to the outer edge of the lens frame is required, and the cut of the lens at this side edge is required. The thickness width is particularly set in proportion to the lens power. In addition, the same situation applies to convex lenses for hyperopia or presbyopia, which requires a lens with a diameter that extends from the focal point of the lens used to the outer edge of the lens frame, and this is compared to the power of the lens used. This requires the use of a lens with a large focus thickness, and the engagement edge strength at the outer edge of the fitted lens is particularly weak.

Therefore, in order to avoid such inconvenience, in the conventional example, the edge part connected to the front frame is expanded outwardly and folded back inwardly to provide an appropriate slope. Expansion and bending of only the edge part has the following drawbacks.

That is, since the tongue part is a conspicuous part in the front part as it is continuous with the front frame, it cannot be enlarged greatly in order to maintain the appearance.

In addition, since the edge is rigid and is directly attached to the front frame, external forces applied to the edge are directly transmitted to the front frame, causing adverse effects such as distortion on the front frame.

(Means for Solving the Problems) The eyeglass frame according to the present invention has been specially devised in view of the inconveniences of the conventional frames, and the width of the front frame of the eyeglasses used is smaller than the width of the face. In order to correct the position of the pupil, which tends to be biased toward the inside of the lens frame, toward the center of the lens frame as much as possible by using a short lens, the main structure of the lens is to have a front frame such as a lens frame, a front frame such as a lens frame, a lens frame, etc. In a spectacle frame consisting of a pair of opposing side frames, the tip and a part of the front edge side of the temple following the tip are inclined outward, and the inclined temple The free end side of the temple except for the tongue side is inclined inward, and the following specific embodiments and considerable design changes accompanying these embodiments are planned.

(Example) Hereinafter, a typical example of the eyeglass frame shown in the drawings will be described in detail. Reference numeral 1 denotes a lens frame that constitutes a front frame together with a bridge 2, a butt 3, etc. In addition, various shapes such as round, Boston, Wellington, and fox shapes, as well as various materials such as plastic, veneer, or metal, and various changes in design are planned. .

In contrast to such a front frame configuration, lens frame 1
The side frame extending laterally from the side edge after use is generally composed of a tooth 4 and a temple 5, and the temple 5 is foldable with a hinge 6.

In addition, the composition of these 4 parts of wisdom, as well as Temple 5
Other mutual shapes and attachment structures are planned, and a case where the temple 5 is directly pivoted to the front frame by omitting the bracket 4 is also planned separately.

In the eyeglass frame having such a configuration,
The side frame is bent under load, and the width of the temple 5 that touches the temporal region is made wider than the width of the front frame.

Therefore, in the expansion of the contact surface of the temple 5, in order to ensure a more natural expansion state,
First, connect the mounting base 4a of the lens 4 to the lens frame 1 so as to expand outwardly on both sides, and then gently bend the mounting base 4b inwardly to correct it. The side frame is modified in a direction perpendicular to the lens frame 1.

Of course, if such expansion and bending corrections are small, it is also possible to make them only on the 4th part of the lens or only on the 5th part of the temple, or if the 4th part is temporarily extended to the side of the lens frame 1. It is planned that it will be expanded and modified later, and the desired effect was achieved in both cases.

(Effect of the invention) The eyeglass frame according to the invention has the characteristic structure described above, is easy to bend, and is attached to the front frame with the detachable temple 5. After expanding the proximal part of the temple 5 to the front frame, one end is expanded outward, and then the lens is reattached. By correcting the bending of the frame 1 to a position approximately perpendicular to the frame 1, the width of the front frame is narrower than the distance between the temples 5, 5, and by selectively attaching the temples 5 having different curvature ratios. By changing the width between the side frames and positioning the bend 5a in the temple 5 behind the front frame, the lens frame 1 is moved as far as possible toward the center of the wearer's face without making the bend 5a noticeable. It was designed to be biased toward

This corresponds to the fact that the pupil position is generally biased toward the inner side of the lens frame 1, and the expansion position bending correction width is adjusted to match the deviation of the pupil position. The pupil position is made as close to the center of the lens frame 1 as possible.

Such movement correction of the center position of the lens frame 1 with respect to the pupil position is to eliminate the bias of the fitted lens as described above, and as in the previous example, it is necessary to correct the movement of the center position of the lens frame 1 with respect to the pupil position. This eliminates the need to use a lens, which prevents the lens used from becoming thicker, and suppresses as much as possible the increase in weight and the occurrence of Newton's ring phenomenon due to the thickening of the lens.

It should be noted that, as mentioned above, the lens frame 1 is placed on the inner side not only in corrective glasses for malvision such as myopia, farsightedness, astigmatism, and presbyopia, but also in so-called protective glasses such as general ultraviolet or infrared shielding glasses and dust prevention glasses. This particularly promises to make the eyeglasses smaller and lighter by bringing them closer to each other.

It should be noted that some of the existing eyeglass frames had a width between the temples that was larger than the front width, but most of them had side frames that were perpendicular to the front frame. The temple part is expanded laterally to accommodate the wearer's body, and there is usually no return part due to re-folding. It was deemed unsuitable for such use.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the glasses according to the present invention, Fig. 2 is a plan view of the main parts, Fig. 3 is a perspective view of the same, and Figs. 4 A and B are usages for different pupil positions. FIG. 3 is a front view showing differences in lenses. In addition, in the figure 1... Lens frame, 2... Bridge, 3
...Patsuto, 4...Wisdom, 5...Temple, 6...
This shows the hinge.

Claims (1)

[Scope of utility model registration request] In eyeglass frames consisting of a front frame such as a lens frame, and a pair of opposing side frames such as a tooth and a temple, the eye and a part of the front eye side of the temple that follows this eye are directed outward. A spectacle frame characterized in that the temples are inclined, and the free end sides of the temples except for the tongue side of the inclined temples are inclined inward.