JP3078165U - Two point glasses - Google Patents

Abstract

(57) [Summary] [Problem] The inner edge of the back surface of the lens and the outer edge of the back surface of the two-point glasses are particularly susceptible to dirt and dirt on human fingers, and must be cleaned with frequent cleaning of the glasses. However, if the tip of the screw or nut is protruding from the back of the lens, it is very difficult to wipe it off. A through hole for threading is provided in a lens fixing portion of a yoke portion and / or a bridge portion having a co-rotation preventing piece abutting on a lens peripheral surface so as to match a lens surface hole, and a flange is provided at a rear end portion. A pipe nut having both ends opened is inserted through a lens back hole provided with a concave portion for fitting a flange of the pipe nut, and a screw is inserted from the front of a through hole of a lens fixing portion of a yoke portion and / or a bridge portion. The screw is inserted and screwed into the pipe nut to fix and fix the lens and the yoke portion and / or the bridge portion, and cut so that the flange or screw head of the pipe nut does not protrude from the hole on the back surface of the lens.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a fixing structure of a lens of a two-point glasses and a royal part or a bridge part.

[0002]

[Prior art]

 Conventionally, in the connection structure of the lens and the fastening part of the two-point glasses, a method is generally used in which the fastening piece and the lens are screwed through the lens hole and screwed to the back of the lens with a nut. I came.

[0003]

[Problems to be solved by the invention]

 However, the inner edge of the back of the lens and the outer edge of the back of the lens are particularly susceptible to dirt and stains on human fingers and fingers. If the tip of the screw or nut is protruding, it is very difficult to wipe the dirt, and the dirt cannot be completely wiped off, resulting in poor visibility. In addition, the wiper may be scratched or torn.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, firstly, the fixing structure of the two-point glasses, in which the lens fixing portion of the yolo portion and / or the bridge portion having the co-rotation preventing piece abutting on the lens peripheral surface. A threaded through hole is provided so as to match with the lens surface hole, and a pipe nut having a flange at the rear end and having both ends opened is provided with a concave portion for fitting the flange of the pipe nut. Inserted into the hole from the hole, screwed into the pipe nut with a screw from the front of the through hole of the lens fixing part and / or bridge part of the lens part and / or the bridge part. The object of the present invention has been achieved by providing a fastening structure for two-point glasses, in which parts such as flanges or screw heads of the pipe nuts are not projected from.

Next, there is provided a fastening structure for two-point glasses, in which a through hole for threading is provided in a lens fastening portion of a yoke portion and / or a bridge portion having a co-rotation preventing piece abutting on a lens peripheral surface. A cap nut having a flange at the rear end, which is provided so as to match the lens surface hole, is fitted through a lens back hole having a concave portion into which the collar of the cap nut is fitted. A screw is inserted and screwed into the cap nut from the front of the attachment part through hole, the lens and the lip and / or bridge are fastened and fixed so that the collar part of the cap nut does not protrude from the hole on the back of the lens. The solution was achieved with a two-point kinematic fastening structure that features the following features.

[0006]

【Example】

 FIG. 1 is a cross-sectional view of a main part in the vicinity of a yoke part according to a first embodiment of the present invention. A pipe nut 6 having both ends opened is fitted through a lens back surface hole 3b having a concave portion 7 into which a flange of the pipe nut is fitted. The lens L and the flap part 1 were fixedly fastened to the pipe nut 6 so that parts such as the flange of the pipe nut or the screw head 8h did not protrude into the hole 3b on the back surface of the lens.

FIG. 2 is a cross-sectional view of the vicinity of the yoke part of the present invention assembled from the state of FIG. 1, and uses a long screw so that it can be used with any lens thickness and thickness of yoke parts. By doing so it will be fixed firmly. However, in this case, since an extra length of screw D protrudes into the hole on the back surface of the lens, this portion is cut so that the projecting member does not come out of the hole on the back surface of the lens. By doing so, the lens back can be wiped clean without getting caught on the lens back.

FIG. 3 is a sectional view of a main part of the bridge portion according to the first embodiment. As in the case of the above-mentioned yoro portion, a long screw 81 is used, and after assembling, an extra length is similarly cut. And finish it.

FIG. 4 is a cross-sectional view of a main part of the yoro portion and the bridge portions 1 and 9 according to a second embodiment of the present invention. In this embodiment, a lens of the yolo portion and / or the bridge portion is provided. A threaded through hole 42 is provided in each of the fastening portions 2 and 21 so as to match the lens surface hole 3e, and a cap nut 62 having a flange 52 at a rear end and a recess 72 into which the flange of the cap nut is fitted. The lens L is inserted into the cap nut 62 with a screw 82 from the front of the through hole 42 of the lens and / or bridge, and is screwed into the lens L. The flange part of the cap nut was prevented from protruding from the hole on the back surface of the lens.

The screw 82 used in the second embodiment uses the cap nut 62 whose rear end is closed. Measure the thickness of the lens and the thickness of the lens, etc., and set it slightly shorter. By doing so, the screws fit tightly, the back of the lens is also neat, and dirt on the lens can be easily wiped off, keeping the visibility good.

FIG. 5 is a front perspective view of the two-point glasses equipped with the fastening structure of the present invention.

[0012]

[Effect of the invention]

 As described above, according to the present invention, the lens and the fastening parts can be firmly fastened with a simple structure and a small number of parts, the rear surface of the lens is neat, the dirt on the lens is easily wiped off, and the visibility is good. It can provide easy-to-use two-point glasses to the user.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a yoroi part according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a main part of the yoroi part of the first embodiment of the present invention assembled from FIG.

FIG. 3 is a sectional view of a main part of a bridge portion according to the first embodiment of the present invention;

FIG. 4 is a cross-sectional view of a yoro and a bridge according to a second embodiment of the present invention;

FIG. 5 is a front perspective view of the two-point glasses using the fastening structure of the present invention.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Yoroi part 2 Yoroi part lens fixing part 3, 31 Lens through hole 3a, 3c Lens surface hole 3b, 3d Lens back hole 4, 41 Yolo part screw through hole 5, 51, 52 Flange 6, 61, 62 Pipe Nut 7, 71, 72 Lens concave part 8, 81, 82 Screw 9 Bridge part 10 Bridge part lens fastening part 11 Pad foot 12 Co-rotation prevention piece 13 Lens peripheral surface D Screw length excess cut part L Lens

Claims (2)

[Utility model registration claims] 1. A fastening structure for two-point glasses,
Both ends having a through hole for threading provided in the lens fastening portion of the yoke portion and / or the bridge portion having the co-rotation preventing piece in contact with the lens peripheral surface so as to match the lens surface hole, and having a flange at the rear end portion Is inserted through a lens back hole provided with a concave portion for fitting a flange of the pipe nut, and is screwed into the pipe nut from the front of a through hole of a lens fixing portion of a yoke portion and / or a bridge portion. A two-point screwing mechanism, wherein the lens is fixedly fastened to the lens and / or the bridging part and / or the bridging part so that parts such as the flange or screw head of the pipe nut do not protrude from the hole on the back of the lens. Glasses fastening structure and two-point glasses using it. 2. A fastening structure for two-point glasses,
A cap nut having a flange at the rear end is provided with a through hole for threading in the lens fixing portion of the yoke portion and / or the bridge portion having the co-rotation preventing piece abutting on the lens peripheral surface so as to match the lens surface hole. The lens is inserted into the cap nut from the front of the through hole of the lens fixing portion and / or the bridge, and screwed into the cap nut. A fastening structure for two-point glasses and two-point glasses using the fastening structure, wherein the bridging part of the cap nut is prevented from protruding from a hole on the back surface of the lens by fixing and / or fixing a bridge portion.