JP3063549U - Glasses lens mounting structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an eyeglass mounting structure without rattling between a temple or a bridge and a lens. SOLUTION: Glasses 10 include a lens 12, and through holes 14 and 16 are formed at an end of the lens 12. Lens 12
Is attached to one end of the temple. A connecting member 22 having a holding portion 24, a columnar body 26, and a support piece 30 is attached to the tip of the torch 20. Column 2
6 and the inner diameter of the through-hole 14 are made substantially equal, and the interval between the inside of the support piece 30 and the columnar body 26 is made almost equal to the interval between the edge of the lens 12 and the through-hole 14. To The male screw portion 36 of the fastener 32 is inserted into the through hole 14 of the lens 12 through a flexible washer 40.
Is inserted and screwed into the female screw portion 28 of the columnar body 26 to fix the connecting member 22. The connecting member 22 is also formed on the bridge 42 attached to the other end of the lens 12 and attached to the through hole 16.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lens mounting structure for eyeglasses, and more particularly, to a lens mounting structure for eyeglasses for mounting a lens on a temple or a bridge, for example, in a frameless frame.

[0002]

[Prior art]

 FIG. 4 is an illustrative view showing main parts of an example of a conventional lens mounting structure for eyeglasses. The megane 1 includes a lens 2, a circular through hole 3 is formed near the edge of the lens 2, and a temple 5 for attaching glasses to an ear is attached by a connecting member 4. An external thread 6 is formed in the connecting member 4, and the external thread 6 is inserted into the through hole 2 of the lens 2. Then, the nut 7 is fitted into the male screw portion 6, and the connecting member 4 and the lens 2 are fixed. Further, a support piece 8 is formed on the connecting member 4, and the support piece 8 is arranged along the edge of the lens 2. The support piece 8 suppresses the rotation of the connecting member 4 about the male screw portion 6 and suppresses the play of the temple 5. Such a connecting member 4 is also formed as a bridge for connecting the two lenses 2 to suppress the play between the two lenses.

[0003]

[Problems to be solved by the invention]

 However, the through hole of the lens may not be formed at an accurate position.For example, if the distance from the edge of the lens to the through hole is small, the gap between the support piece of the connecting member and the edge of the lens may be reduced. This causes rattling on the temples and the like. Also, if the distance from the edge of the lens to the through hole is large, the support piece of the connecting member is located inside the edge of the lens, and the connecting member cannot be attached to the lens. In this case, the through hole must be enlarged toward the outside of the lens. However, when the through-hole is enlarged, the male screw portion becomes unstable inside the through-hole, causing rattling.

[0004] Therefore, a main object of the present invention is to provide a lens mounting structure for spectacles without rattling between a temple and a bridge and a lens.

[0005]

[Means for Solving the Problems]

 This invention has a lens, a through hole formed near the edge of the lens, a columnar body inserted into the through hole from one side of the lens, and a support piece formed along the edge of the lens. A connecting member for connecting the lens to the temple and the bridge, and a fastener inserted into the through-hole from the other side of the lens and fixed to the column, wherein the inner diameter of the through-hole corresponds to the outer diameter of the column. This is a lens mounting structure for eyeglasses, which is formed so as to be substantially equal, and the distance between the inside of the support piece and the columnar body is substantially equal to the distance between the edge of the lens and the through hole. In such a lens mounting structure for eyeglasses, a female screw portion is formed on the column and a male screw portion is formed on the fastener, and the male screw portion of the fastener is screwed into the female screw portion of the column. Thereby, the fastener can be fixed to the columnar body. Preferably, the length of the columnar body is shorter than the length of the through hole, and a gap is formed between the male screw portion of the fastener and the inner wall of the through hole. Further, it is preferable that a flexible washer is interposed between the lens and the head of the fastener.

By making the distance between the inside of the support piece and the columnar body substantially equal to the distance between the edge of the lens and the through hole, the support piece can be arranged exactly along the edge of the lens. And In addition, since the inner diameter of the through hole is formed so as to be substantially equal to the outer diameter of the columnar body, the columnar body does not rattle in the through hole, and the interaction with the supporting piece allows the connecting portion and the lens to move. Is accurately determined. Further, the lens can be attached to the connecting member by forming a female screw portion on the columnar body and screwing a fastener having a male screw portion. At this time, by forming a gap between the male screw portion and the inner wall of the through hole of the lens, even if there is some distortion in the lens, the distortion can be absorbed and damage can be prevented. . Furthermore, by interposing a flexible washer between the fastener and the lens, when the fastener is tightened, the washer is pushed into the gap between the male screw portion and the inner wall of the through hole, and the spring is pressed. By exhibiting the property, the fastener is prevented from loosening.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention with reference to the drawings.

[0008]

[Embodiment of the invention]

 FIG. 1 is an illustrative view showing a part of eyeglasses using the eyeglass lens mounting structure of the present invention. The glasses 10 include a lens 12. As the lens 12, for example, a plastic lens is used. As shown in FIG. 2, circular through holes 14 and 16 are formed near the opposite edges of the lens 12. At one end of the lens 12, as shown in FIG. 3, a clasp 20 connected to a temple 18 for hanging on an ear is attached. The wisdom 20 is formed in an L-shape, and the wisdom 20 and the temple 18 are rotatably connected via a hinge 21.

A connecting member 22 is formed at the tip of the wisdom 20, and a holding portion 24 for holding the lens 12 is formed on the connecting member 22 by being arranged along one surface of the lens 12. At an end of the holding portion 24, a columnar body 26 is formed. The column 26 is formed so as to be substantially orthogonal to the holding portion 24. The outer diameter of the columnar body 26 is formed so as to be substantially equal to the inner diameter of the through hole 14 of the lens 12. Then, a female screw portion 28 is formed inside from the tip end of the columnar body 26. The length of the columnar body 26 is formed to be shorter than the length of the through hole 14. Further, a support piece 30 is formed on the connecting member 22 at an interval from the columnar body 26. The support piece 30 is formed so as to be substantially orthogonal to the holding portion 24, and the column 26 and the support piece 30 are formed so as to face each other. The support piece 30 is attached to the tip of the tongue 20, extends on both sides of the tongue 20, and is formed along the end of the lens 12.

A column 26 of the connecting member 22 is inserted from one side of the lens 12 toward the inside of the through hole 14. At this time, since the length of the column 26 is shorter than the length of the through-hole 14, the tip of the column 26 exists inside the through-hole 14 and does not protrude to the other surface of the lens 12. Since the columnar body 26 and the support piece 30 are formed to face each other, the support piece 30 is arranged along the edge of the lens 12. Here, the interval between the inside of the support piece 30 and the columnar body 26 is formed so as to be equal to the interval between the edge of the lens 12 and the through hole 14. Thus, the end of the lens 12 is sandwiched between the column 26 and the support piece 30. Moreover, since the outer diameter of the columnar body 26 is formed to be substantially equal to the inner diameter of the through hole 14, the end of the lens 12 is fitted into the connecting member 22 exactly.

Further, a fastener 32 is inserted from the other surface of the lens 12 toward the inside of the through hole 14. The fastener 32 includes a head portion 34, and a male screw portion 36 is formed so as to extend from the head portion 34. A groove 38 for rotating the fastener 32 with a driver is formed in the head 34. Then, the male screw portion 36 of the fastener 32 is inserted into the through hole 14 and screwed into the female screw portion 28 of the columnar body 26. At this time, a flexible washer 40 made of, for example, a synthetic resin is interposed between the head 34 of the fastener 32 and the lens 12. The temple 18 is attached to the lens 12 with the connecting member 22 and the fastener 32. The outer diameter of the male screw portion 36 is formed to be smaller than the inner diameter of the through hole 14. Therefore, a gap is formed between the male screw portion 36 and the inner wall of the through hole 14.

A bridge 42 is attached to the other end of the lens 12. At both ends of the bridge 42, a connecting member including the holding portion 24, the columnar body 26, and the support piece 30 is formed in the same manner as formed at the tip of the tongue 20 attached to one end of the lens 12. 22 are formed. The columnar body 26 of the connecting member 22 is inserted into the through hole 16 from one side of the lens 12, and the fastener 32 is inserted through the washer 40 from the other side. Then, the bridge 42 is attached to the lens 12 by screwing the male thread 36 of the fastener 32 into the female thread 28 of the column 26. Further, another lens 12 is attached by a bridge 42. Needless to say, the temple 18 is attached to this other lens 12 as well. For this other lens 12, the connecting member 22, the fastener 32, and the washer 40 are used to attach the temple 18 and the bridge 42.

In the lens 12 of the present invention, through holes 14 and 16 are formed at predetermined accurate positions. Therefore, when the lens 12 is attached to the temple 18 and the bridge 42, the distance between the inside of the support piece 30 of the connecting member 22 and the columnar body 26 becomes equal to the distance between the edge of the lens 12 and the through holes 14 and 16. Matches. Furthermore, by making the inner diameters of the through holes 14 and 16 formed by the drill 60 substantially coincide with the outer diameters of the columnar bodies 26, the backlash of the columnar bodies 26 inside the through holes 14 and 16 is reduced. Can be prevented.

As described above, since the through holes 14, 16 and the column 26 are fitted tightly and the lens 12 is sandwiched between the column 26 and the support piece 30 without any gap, the fastener 32 is not The temple 18 and the bridge 42 do not move by being inserted into the through holes 14 and 16 and screwed into the columnar body 26. Therefore, the fastener 32 is less likely to be loosened, and the number of times of tightening the fastener 32 can be reduced. Furthermore, by using the washer 40 having flexibility, the fastener 32 is less likely to loosen due to its spring property. At this time, since a gap is formed between the male screw portion 36 of the fastener 32 and the inner walls of the through holes 14 and 16, the washer 40 enters into the gap as shown in FIG. The spring property of the washer 40 can be further improved. Therefore, the fastener 32 can be prevented from loosening due to the synergistic effect of the flexible washer 40 and the gap. Further, since a gap is formed between the male screw portion 36 of the fastener 32 and the inner walls of the through holes 14 and 16, even if an external force is applied to the glasses 10 and the lens 12 is slightly distorted, The distortion is absorbed, and damage to the lens 12 can be prevented.

[0015]

[Effect of the invention]

 According to this invention, since the through-hole can be accurately formed at a predetermined position of the lens, it is possible to eliminate the play between the lens and the temple or bridge. In addition, the fastener is not easily loosened, and the number of times of retightening can be reduced.

[Brief description of the drawings]

FIG. 1 is an illustrative view showing a part of eyeglasses using the eyeglass lens mounting structure of the present invention.

FIG. 2 is an illustrative view showing a through hole formed in a lens of the glasses shown in FIG. 1;

FIG. 3 is an illustrative sectional view showing a main part of the glasses shown in FIG. 1;

FIG. 4 is an illustrative view showing a main part of conventional glasses.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Glasses 12 Lens 14 and 16 Through-hole 18 Temple 20 Chi 22 Connection member 24 Holding part 26 Column 28 Female screw part 30 Supporting piece 32 Fastener 34 Head 36 Male screw part 38 Groove 40 Washer 42 Bridge

Claims (4)

[Utility model registration claims] A lens, a through hole formed near an edge of the lens, a columnar body inserted into the through hole from one side of the lens, and a support piece formed along the edge of the lens. A connecting member for connecting the lens to a temple and a bridge, and a fastener inserted into the through hole from the other side of the lens and fixed to the columnar body, wherein the inner diameter of the through hole is While being formed so as to be substantially equal to the outer diameter of the columnar body, the interval between the inside of the support piece and the columnar body was made substantially equal to the interval between the edge of the lens and the through hole, Lens mounting structure for glasses. 2. A female screw part is formed in the columnar body, a male screw part is formed in the fastener, and the male screw part of the fastener is screwed into the female screw part of the columnar body. The lens mounting structure for eyeglasses according to claim 1, wherein the fastener is fixed to the columnar body. 3. The length of the columnar body is shorter than the length of the through hole, and a gap is formed between the male screw portion of the fastener and an inner wall of the through hole. Item 3. An eyeglass lens mounting structure according to item 2. 4. The lens mounting structure for eyeglasses according to claim 1, wherein a flexible washer is interposed between the lens and the head of the fastener.