JPS6220815Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement in eyeglasses.

As shown in FIG. 1, so-called rimless glasses in which a rim 2 is attached directly to a lens 1 are generally known, but in conventional glasses of this kind,
The end of the lens 1 is fitted between the clamping pieces 3 and 3 provided at the tip of the vine 2, and a screw 4 is screwed between the clamping pieces 3 and 3 through the mounting hole provided in the lens 1 to fix them. This not only requires drilling holes in the lens, which is time-consuming, but also reduces the strength of the lens, making the edges more likely to chip.

The purpose of this invention is to eliminate the above-mentioned conventional drawbacks and to allow the vine to be easily and firmly attached without drilling holes in the lens. Then, a band having a protrusion that fits into the groove is wrapped around the lens, and a vine mounting bracket having a protrusion that fits into the groove is brought into contact with the side surface of the lens, and the band is wrapped around the lens. The device is characterized in that both ends of the device are fixed to the mounting bracket under tension.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 2 to 4, reference numeral 10 denotes an eyeglass lens having a concave groove 11 on the outer peripheral surface, and 12 denotes a side end of the lens 10. 14 is attached to the lens 10 and the mounting bracket 13 through the mounting bracket 13.
This shows a band for connecting the two.

The mounting bracket 13 is attached to the vine 12 via the screw 15.
It consists of a main body piece 16 and a tightening piece 17 that is attached to the main body piece 16 with a screw 18 so that it can be freely tightened and loosened. A contact piece 20 extending in the circumferential direction along the side surface of the lens 10 is integrally attached, and a projecting wall 21 that fits into the groove 11 is provided on the contact surface of the contact piece 21 with the lens 10. A stepped fitting groove 22 into which the band 14 is fitted is cut in the back side of the band 20 in the length direction.

Further, the tightening piece 17 is arranged such that an abutting piece 20 fits into a recess provided at its tip, and can move along the corresponding abutting piece 20 when tightening or loosening the screw 18. A gap 19 for tightening and fixing the end of the band 14 is formed between the tip of the tightening piece 17 and the main body piece 16 by a stepped portion provided on each of the fitting grooves. It is formed in a direction perpendicular to 22.

On the other hand, the band 14 is formed into a substantially T-shaped cross section by providing a protrusion 24 on the inner surface of the band-like main body 23 that fits into the groove 11 of the lens 10, and the protrusion 24 fits into the groove 11. Lens 10
, and both ends 14a, 1 of the band 14.
4a into the fitting groove 22 of the contact piece 20 in the mounting bracket 13, and the body piece 16 and the tightening piece 1.
7, and in this state, the tightening piece 17 is strongly tightened with the screw 18, so that both ends of the band are clamped and fixed between the pieces 16 and 17 under tension. .

Note that when the band 14 is curved to follow the shape of the lens 10 so as to be in close contact with its outer peripheral surface, a tensile force acts on the main body 23 with a large radius of curvature, and vice versa on the protrusion 24 with a small radius of curvature. Although a compressive force will be applied, since the main body 23 is formed into a wide band shape, its elongation is prevented as much as possible, and there is almost no reduction in its mounting strength. In this case, the depth of the groove 11 is
By forming it slightly deeper than 4,
Even if the height of the protrusion 24 increases slightly due to compression due to curving, this can be absorbed.

Further, the band 14 is desirably made of metal or other material with high tensile strength and low elongation.

According to the glasses of the present invention having the above-mentioned configuration, a band is wound around the outer peripheral surface of the lens in which a groove is cut, and both ends of the band are fixed to the mounting fittings under tension, thereby attaching the tendrils. Therefore, there is no need to provide a screw mounting hole in the lens as in the conventional case, making processing and assembly very easy, and also making it possible to prevent a decrease in the strength of the lens and reliably prevent breakage.

In addition, when fixing the band end, the band is fitted into the fitting groove in the circumferential direction of the lens provided on the contact piece of the mounting bracket, and the end of the band is placed perpendicular to the fitting groove. By bending the band at right angles and fitting it into the gap, and then tightening the tightening piece with a screw, it is sandwiched between the main body piece and the tightening piece. It can be fixed securely, and since the end of the band is bent at right angles and held between the main body piece and the tightening piece, the fixation is very strong and can be used for a long time. It does not gradually slide and loosen.

Furthermore, the tension of the band can be easily adjusted by tightening or loosening the tightening piece.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of a conventional example, FIG. 2 is a perspective view of a main part showing an embodiment of the present invention, FIG. 3 is a longitudinal cross-sectional view thereof, and FIG. 4 is a cross-sectional view thereof. 10...lens, 11...concave groove, 12...vine,
13...Mounting bracket, 14...Band, 14a...
End portion, 16... Body piece, 17... Tightening piece, 18...
...Screw, 19...Gap, 21...Abutting piece, 22
...Inset groove.

Claims (1)

[Scope of utility model registration request] A band that fits into the groove is wound around the outer periphery of a lens provided with a groove, and a contact piece at the tip of the main body piece of the vine mounting bracket is brought into contact with the side surface of the lens. The band is fitted into the circumferential fitting groove of the lens, and the end of the band is bent and fitted into the gap between the main body piece and the tightening piece, which is orthogonal to the fitting groove. Eyeglasses characterized in that both ends of the band are clamped and fixed by fastening the attachment piece to the main body piece with screws.