JP2001013467A - Lens mounting structure of spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a mounting structure of spectacles free from shaking between temples or a bridge and lenses. SOLUTION: The spectacles include lenses 12 and are formed with through- holes 14 and 16 at the ends of the lenses 12. Endpieces 20 connected to the temples 18 are mounted at the one-side ends of the lenses 12. Connecting members 22 having holding parts 24, columnar bodies 26 and supporting pieces 30 are mounted at the front ends of the endpieces 20. The outside diameters of the columnar bodies 26 and the bore of the through-holes 14 are so set as to be nearly equaled to each other. The spacings between the inner side of the supporting pieces 30 and the columnar pieces 26 are so set as to be made nearly equal to the spacings between the end edges of the lenses 12 and the through-holes 14. External thread parts 36 of fastenings 32 are inserted via washers 40 having flexibility into the through-holes 14 of the lenses 12 and are screwed into internal thread parts 28 of the columnar bodies 26, by which the connecting members 22 are fixed. The connecting members 22 are also formed at the bridge 42 mounted at the other ends of the lenses 12 and are mounted in the through-holes 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens mounting structure for spectacles, and more particularly to a lens mounting structure for spectacles for mounting a lens on a temple or a bridge in frameless glasses.

[0002]

2. Description of the Related Art FIG. 10 is an illustrative view showing main parts of an example of a conventional lens mounting structure for eyeglasses. Glasses 1 are lenses 2
, A circular through hole 3 is formed near the edge of the lens 2, and a temple 5 for attaching the glasses to the ear is attached by the connecting member 4. The connecting member 4 has a male thread 6
This male screw portion 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 and suppresses play between the two lenses.

[0003]

Usually, a sample lens formed of a synthetic resin or the like is attached to a temple or a bridge, and is displayed at a store. Then, when the purchaser of the glasses selects a favorite temple and bridge, a prescription lens matching the eyesight of the purchaser is molded into the same shape as the sample lens, a through hole is formed in the lens, and the temple and the bridge are formed. A male screw part formed in the connecting member is inserted, and the connecting part is fixed by the nut.

[0004] The sample lens is attached when it is shipped from a temple or bridge manufacturer, and the position of the through hole is accurately set, and is the same as the distance from the inside of the support piece to the external thread. The distance from the edge of the sample lens to the through hole is set so as to be the interval. Therefore, when the through hole is formed in the lens to be actually mounted, if the through hole is formed at the same position as the sample lens, the support piece will accurately follow the edge of the lens, and the lens And can be attached to the bridge.

However, it is difficult to form a through-hole in a lens actually used at the same position as the through-hole of a sample lens, and a skilled person cannot form a through-hole at an accurate position. For example, if the distance from the edge of the lens to the through hole is small, a gap is formed between the support piece of the connecting member and the edge of the lens, and rattling occurs on the temple and the like. 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 is in an unstable state inside the through hole and causes rattling.

SUMMARY OF THE INVENTION It is, therefore, a primary object of the present invention to provide a lens mounting structure for spectacles without rattling between a temple or a bridge and a lens. Another object of the present invention is to provide a method for forming a through hole in a lens at an accurate position, even if the person is not skilled, in order to obtain such an eyeglass mounting structure. is there. It is a further object of the present invention to provide a perforation device capable of forming a through hole in a lens at an accurate position.

[0007]

The present invention comprises a lens,
It has 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, and connects the lens to the temple and the bridge. A coupling member for coupling and a fastener inserted into the through-hole from the other side of the lens and fixed to the columnar body are formed such that the inner diameter of the through-hole is substantially equal to the outer diameter of the columnar body. In addition, there is provided a lens mounting structure for spectacles, wherein a distance between the inside of the support piece and the columnar body is substantially equal to a 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 in the columnar body, and a male screw portion is formed in the fastener, and the male screw portion of the fastener is screwed into the female screw portion of the columnar body to form the columnar body. The fastener can be secured to the body. Further, it is preferable that the length of the columnar body is formed 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. Further, the present invention is a method of forming a through hole in a lens applied to a lens mounting structure of eyeglasses, the method including a step of preparing a hole forming apparatus having a cutting body for forming a through hole in the lens. Attached to a connecting member having a columnar body to be inserted into the through-hole and a support piece arranged along the edge of the lens, and has a distance substantially equal to the distance between the inside of the support piece and the columnar body. Preparing a sample lens having a through-hole formed at a distance from the edge so as to fix the sample lens so that the through-hole of the sample lens is located at a position corresponding to the cutting body of the drilling device. A step of determining the position, a step of removing the sample lens from the hole punching apparatus, a step of fixing a lens to form a through hole at the determined position, and a step of forming a through hole in the lens with a cutting body Including a drilling method. In such a hole forming method, the step of determining the position of the sample lens includes preparing a fixed rod including a shaft having an outer diameter substantially equal to the inner diameter of the through hole of the sample lens, and forming the shaft of the fixed rod. It can be composed of a step of inserting the fixing rod into a through-hole of the sample lens, a step of fixing the fixing rod at a position corresponding to the cutting body of the drilling device, and a step of fixing the sample lens. Also, the sample lens is positioned by a plurality of movable support pins that can be fixed in contact with the periphery of the sample lens to determine its position, and the lens is fixed by the fixed support pin. Can be. Furthermore, by pressing the pressing plate against the edge of the sample lens, the interval between the edge of the sample lens and the shaft of the fixing rod is determined. After removing the sample lens, the edge of the lens is pressed against the pressing plate. The distance between the edge of the lens and the through hole can be determined. Further, the present invention is a perforation device for forming a through hole in a lens applied to a lens mounting structure of eyeglasses, wherein the sample lens having the through hole formed at a predetermined position is fixed to fix the through hole. Includes a lens fixture for determining the position, and a cutting body for forming a through-hole in the lens after fixing the lens whose through-hole is to be formed by the lens fixture to the same position as the fixed position of the sample lens , A punching device.
In such a perforation device, a fixing recess for fixing a fixing rod having a shaft portion inserted into the through hole of the sample lens is included, and the fixing recess is formed in a state where the shaft portion is inserted into the through hole of the sample lens. By fixing the fixing rod, the position of the through hole of the sample lens can be determined. Further, the position of the sample lens may be determined by including a plurality of movable support pins for fixing the sample lens, and fixing the support pin in contact with the periphery of the sample lens. Here, after the position of the sample lens is determined, at least one support pin may be movable and may return to a position where the sample lens is fixed.

[0008] The distance between the inside of the support piece and the columnar body is made substantially equal to the distance between the edge of the lens and the through hole, so that the support piece is accurately arranged along the edge of the lens. become. 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 support piece causes the connection between the connecting portion and the lens. The positional relationship is accurately determined. Further, a female screw portion is formed in the columnar body, and a fastener having a male screw portion is screwed into the column member so that the lens can be attached to the connecting member. 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 breakage 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 property is improved. , Loosening of the fastener is prevented.
Fix a sample lens with a through hole at the correct position, place the through hole at a position corresponding to the cutting body of the drilling device, and place the lens to be actually used at the same position Accordingly, a through-hole can be formed in the lens using the cutting body at the same position as the through-hole formed in the sample lens. Here, a fixing rod including a shaft having an outer diameter substantially equal to the inner diameter of the through hole of the sample lens is used, and the shaft is inserted into the through hole of the sample lens so that the fixing rod corresponds to the cutting body of the drilling device. By fixing the position of the sample lens, the position of the sample lens can be determined. At this time, the sample lens can be positioned by moving a plurality of movable support pins so as to be in contact with the periphery of the sample lens and fixing the support pin so that the support pin is in contact with the periphery of the sample lens. Further, the pressing plate is pressed against the edge of the sample lens, and after removing the sample lens, the edge of the lens actually used is pressed against the pressing plate, so that the gap between the lens edge and the through hole is removed. Can be determined. In order to form a through hole in a lens by such a method, a hole punching device having a lens fixing device for fixing a sample lens having a through hole formed in a predetermined position can be used. The position of the through hole can be determined. Therefore, after fixing the lens in which the through hole is to be formed by the lens fixing device to the same position as the fixing position of the sample lens, by forming the through hole in the lens with a cutting body, the through hole is formed in the lens at the correct position. Can be formed. In such a perforation apparatus, the shaft of the fixing rod is inserted into the through hole of the sample lens, and the fixing rod is fitted and fixed in a fixing recess formed in the perforation apparatus. Can be determined. In addition, by moving a plurality of movable support pins so as to be in contact with the periphery of the sample lens and fixing it in that state,
The position of the sample lens can be determined. At this time, if the support pin is movable and can be returned to the original position, it becomes easy to remove the sample lens and fix the lens forming the hole.

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 accompanying drawings.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an illustrative view showing a part of spectacles using a spectacle 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. As shown in FIG. 3, a lens 20 connected to a temple 18 to be put on an ear is attached to one end of the lens 12. Satoshi 20
Is formed in an L-shape, and the temple 20 and the temple 18 are rotatably connected via a hinge 21.

[0011] A connecting member 22 is formed at the distal end of the tongue 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 portion 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 is formed so that the columnar body 26 and the support piece 30 face each other. The support piece 30 is Ji 2
The lens 12 is attached to the front end of the lens 12, extends on both sides of the chi 20, and is formed along the end of the lens 12.

The 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 project to the other surface of the lens 12. Since the column 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 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 so as 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 34 and extends from the head 34,
An external thread 36 is formed. 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 by 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 22 including a holding portion 24, a columnar body 26, and a support piece 30 is formed in a manner similar to that formed at the tip of the tom 20 attached to one end of the lens 12. It is formed. The column 26 of the connecting member 22 is inserted into the through hole 16 from one side of the lens 12, and the washer 40 is inserted from the other side of the lens 12.
The fastener 32 is inserted through. And the fastener 32
The bridge 42 is attached to the lens 12 by screwing the male screw portion 36 of the cylindrical member 26 into the female screw portion 28 of the columnar body 26. Further, another lens 12 is attached by the bridge 42. This other lens 12 also has a temple 1
Needless to say, 8 is attached. The connection member 22, the fastener 32, and the washer 40 are also used for attaching the temple 18 and the bridge 42 to this other lens 12.

FIG. 4 is an illustrative view showing a hole punching device 50 for forming the through holes 14 and 16 in the lens 12. The punching device 50 includes a table 52, and for example, a rectangular column 54 is formed so as to extend upward from an end of the table 52. A spindle 56 is provided at the upper end of the column 54.
A spindle head 58 for rotatably holding the shaft is formed.
Then, for example, a drill 60 is attached to the main shaft 56 as a cutting body. A lever 62 is formed on the spindle head 58, and by rotating the lever 62, the spindle 56 can be moved up and down. Therefore, by operating the lever 62, the drill 60 can be applied to the workpiece placed on the table 52, and a hole can be formed in the workpiece.

On the table 52, a lens fixture 70 is formed. The lens fixture 70 includes a base 72. A plurality of slide members 74 are attached to the base 72 side by side. A plurality of support pins 76 are attached to these slide members 74, respectively. These support pins 76 are formed so as to extend upward from the slide member 74. Further, on the slide member 74, a holding plate 78 for holding them is attached. A locking screw 80 is attached to the holding plate 78 at a position corresponding to the slide member 74. By screwing the locking screw 80, the locking screw 80 is pressed against the slide member 74, and the movement of the slide member 74 is locked.

Further, on the slide member 74, a lens mounting table 82 is formed of a synthetic resin or the like. The lens mounting table 82 is formed on, for example, a base member 84 bridged over a slide member 74. This lens mounting table 8
2 is formed so that a center part may become a concave circle. By forming the depression in the center in this way, it is possible to cope with the bulging of the lens 12 when the lens 12 is placed. In other words, the lens 12 can be supported by the peripheral portion of the lens mounting table 82, and even if the lens 12 has a bulge, it is possible to prevent one point of the lens 12 from contacting the lens mounting table 82 and damaging the lens 12. Can be.

A fixing recess 90 is formed in the base member 84 near the lens mounting table 82. This fixing recess 9
0 is formed at a position corresponding to the drill 60. Further, a pressing plate 92 is formed near the fixing recess 90. The pressing plate 92 is formed at the tip of a shaft extending from the bearing block 94, and a spring 96 is mounted between the pressing plate 92 and the bearing block 94. The pressing plate 92 is pushed out toward the lens mounting table 82 by the spring 96. Further, the bearing block 9
A fixing lever 98 is attached to 4. By operating the fixing lever 98, a shaft supporting the pressing plate 92 can be fixed, and the pressing plate 92 can be fixed at a desired position.

Further, an auxiliary pressing plate 100 is formed at a portion facing the pressing plate 92. The auxiliary pressing plate 100
It is attached to the tip of a male screw rod 104 extending from the bearing block 102. By rotating the male screw bar 104, the position of the auxiliary pressing plate 100 can be adjusted. An adjustment knob 106 for moving the base 72 with respect to the table 52 is formed on a side of the base 72. By turning the adjustment knob 106, the position of the base 72 can be finely adjusted. And the base 7
A meter 108 indicating the distance moved by 2 is attached.
The minute distance that the base 72 has moved can be displayed by the meter 108. In order to fix the base 72, two fixing levers 110 formed on the base 72 are used.

When selling the glasses 10, an appropriate lens is selected according to the eyesight of the purchaser of the glasses and the like, and the lens is formed into a predetermined shape. Attached to the bridge 42. Usually, the temple 18 and the bridge 42 of the glasses are attached to a sample lens formed of a synthetic resin or the like and displayed at a store. This sample lens includes the temple 1 and the bridge 42 at the manufacturer.
A through hole is formed at an accurate position in accordance with the bridge 8 and the bridge 42. Therefore, when forming a through hole in a lens to be actually used, if a through hole can be formed in the lens at the same position as the through hole of the sample lens,
The distance from the edge of the lens to the through hole and the distance from the inside of the support piece 30 to the column 26 can be made substantially equal.

As described above, in order to form the through holes 14 and 16 at the correct positions of the lens 12, the hole punching device 50 is used. In this case, first, as shown in FIG. 5, a fixing rod 120 is prepared. The fixing bar 120 includes, for example, a columnar fixing portion 122, and a thin shaft portion 124 is formed at a tip end thereof. Note that the shaft portion 124 is prepared in a plurality of sizes according to the inner diameter of the through hole formed in the lens 12. The shaft portion 124 of the fixing rod 120 is inserted into the through hole 132 of the sample lens 130. At this time, when the sample lens 130 is curved, the shaft portion 124 of the fixing rod 120 is inserted into the through-hole 132 from the bulging side.
Is inserted through.

The fixing rod 120 inserted into the through hole 132 of the sample lens 130 is fixed to the hole forming device 50 as shown in FIG. At this time, the fixing portion 122 of the fixing rod 120 is fixed to the fixing concave portion 90 formed in the base member 84.
Fit into. Then, the pressing plate 92 is brought into contact with the end of the sample lens 130, and
The support pin 76 is arranged so as to be in contact with the periphery of the sample lens 130 by sliding the slide 4. In this state, the pressing plate 92 and the slide member 74 are fixed. Therefore, the sample lens 130
Is determined, and the position of the through hole 132 formed in the sample lens 130 is determined. Since the concave portion 90 formed in the base member 84 is formed at a position corresponding to the drill 60, the through hole 13 of the sample lens 130 is fixed by the fixing rod 120 fixed to the concave portion 90.
2 is also arranged at a position corresponding to the drill 60.

After the position of the sample lens 130 has been determined, the sample lens 130 and the fixing rod 120 are removed from the perforator 50. Then, as shown in FIG. 7, the lens 12 actually used is placed where the sample lens 130 was placed. At this time, since the lens 12 is formed in the same shape as the sample lens 130, the support pin 76 and the pressing plate 92
The position of the lens 12 is determined. In this state, drill 6
By rotating 0 and hitting the lens 12, the through hole 14 can be formed in the lens 12 at the same position as the through hole 132 of the sample lens 130.
When the drill 60 is applied to the lens 12, by pressing the end of the lens 12, even if the lens 12 is curved, the inclination of the lens 12 on the lens mounting table 82 can be corrected. Therefore, the drill 60 can be hit at an angle substantially orthogonal to the surface of the lens 12, and the through hole 14 can be formed at an accurate position.

The through hole 16 can be formed at an accurate position in accordance with the sample lens 130 by repeating the same operation. The auxiliary pressing plate 100 may be used when necessary. If the position of the lens 12 can be determined only by the pressing plate 92 and the support pins 76, the auxiliary pressing plate 100 does not need to be used.
In addition, since the curvature of the lens 12 differs depending on the type, if the curvature of the lens 12 actually used is different from the curvature of the sample lens 130, the connecting member 22
The angle of the holding portion 24 is adjusted. In this case, the holding unit 2
4 is adjusted, the columnar body 26 with respect to the support piece 30 is adjusted.
Also slightly changes, the positions of the through holes 14 and 16 formed in the lens 12 also need to be finely adjusted. In such a case, the adjustment knob 106 is viewed while looking at the meter 108.
By operating, the position of the base 72 is finely adjusted, and the position of the concave portion 90 corresponding to the drill 60 is adjusted. As a method of the adjustment, for example, a method of grasping the moving distance per degree corresponding to the degree of the lens 12 can be considered.

As shown in FIG. 8, one slide member 74a may be connected to an adjacent slide member 74 via a spring inside the slide member 74a. That is, the slide member 74 is moved from the adjacent slide member 74.
a pin 112 projects toward the inside of the
A spring 114 is mounted between the slide member 2 and the slide member 74a.

When the sample lens 130 is fixed, the support pin 76 formed on the slide member 74a is fixed.
Is adjusted to be a position that comes into contact with the periphery of the sample lens 130. In this state, the adjacent slide member 74 is fixed by the locking screw 80. When the sample lens 130 is fixed in this manner, the slide member 74
can be moved, and even when the slide member 74a is moved, the spring 114 returns to the original position. Therefore, it is easy to remove the sample lens 130, and it is also easy to fix the lens 12 where the sample lens 130 was.

The thus obtained lens 12 includes:
Through holes 14 and 16 are formed at the same positions as the through holes 132 formed in the sample lens 130. Therefore, this lens 12 is connected to the temple 18 and the bridge 42.
When it is attached to the inside of the support piece 30 of the connecting member 22 and the columnar body 26, the distance between the edge of the lens 12 and the through hole 14,
16, which corresponds to the interval. 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 rattling of the columnar bodies 26 inside the through holes 14 and 16 is prevented. be able to.

As described above, the through holes 14 and 16 and the columnar body 2
6 fits tightly, and the lens 12 is
And the support piece 30, the fasteners 32 are inserted into the through holes 14 and 16 and screwed into the pillars 26, so that the temple 18 and the bridge 42 do not move. Therefore, the fastener 32 is less likely to be loosened, and the number of retightening of the fastener 32 can be reduced. further,
By using the washer 40 having flexibility, the fastener 32 is less likely to be loosened by 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 the gap as shown in FIG. 40 can be further enhanced in spring property. Therefore, the fastener 32 can be prevented from being loosened due to a synergistic effect between the flexible washer 40 and the gap. Also, the male screw portion 36 of the fastener 32 and the through hole 1
By forming a gap between the inner walls of the 4, 16
Even if an external force is applied to the glasses 10 and the lens 12 is slightly distorted, the distortion is absorbed and the lens 12 can be prevented from being damaged.

Further, as shown in FIG. 9, a concave portion is formed in the holding portion 24, a column 26 is formed so as to communicate with the concave portion, and a female screw portion 28 is formed from the column 26 to the concave portion of the holding portion 24. It may be formed. With this configuration, compared to the case where the female screw portion is formed only on the inner surface of the columnar body 26,
The number of turns of the female screw can be increased. Therefore, when fixing the lens 12, the male screw 36
Is screwed, the engagement portion between the female screw portion 28 and the male screw portion 36 becomes longer, and the fastener 32 is less likely to be loosened.

[0030]

According to the present invention, a through hole can be accurately formed at a predetermined position of a lens, so that rattling between a temple, a bridge, and the like and the lens can be eliminated. In addition, the fastener is not easily loosened, and the number of times of retightening can be reduced. A sample lens can be used to form a through hole at such an accurate position, and even a person without skill can easily form a through hole in a lens.

[Brief description of the drawings]

FIG. 1 is an illustrative view showing a part of eyeglasses using a lens mounting structure for eyeglasses 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 of a main part of the glasses shown in FIG. 1;

FIG. 4 is an illustrative view showing a hole making device for forming a through hole in a lens used for the glasses shown in FIG. 1;

5 is an illustrative view showing a sample lens and a fixing rod used for positioning the lens with the hole making device shown in FIG. 4;

6 is an illustrative view showing a state in which a sample lens and a fixing rod are mounted on the hole making device shown in FIG. 4;

FIG. 7 is an illustrative view showing a state in which a lens actually used is mounted on the hole punching device shown in FIG. 4;

FIG. 8 shows one of the support pins in the drilling device of the present invention.
FIG. 4 is an illustrative view showing a state inside a slide member when one of the slide members is made movable;

FIG. 9 is an illustrative view showing an example in which the female screw portion is formed from the columnar body to the holding portion in the eyeglasses of the present invention.

FIG. 10 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 50 Drilling device 60 Drill 70 Lens fixing device 72 Base 74 Slide member 76 Support pin 78 Pressing plate 82 Lens mounting table 90 Fixing recess 92 Pressing plate 100 Auxiliary pressing plate 106 Adjustment knob 114 Spring 120 Fixing rod 122 Fixing portion 124 Shaft portion 130 Sample lens 132 Through hole

Claims (12)

[Claims] 1. 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 It is formed so as to be substantially equal to the outer diameter of the columnar body, and the interval between the inside of the support piece and the columnar body is 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 a head of the fastener. 5. A method for forming a through hole in a lens applied to a lens mounting structure for eyeglasses, the method comprising: preparing a hole forming apparatus having a cutting body for forming a through hole in the lens; Attached to a connecting member having a columnar body to be inserted into the through hole and a support piece arranged along an edge of the lens, and is substantially equal to a distance between the inside of the support piece and the columnar body. A step of preparing a sample lens having a through-hole formed at a distance from an edge so as to form an interval, such that the through-hole of the sample lens is located at a position corresponding to the cutting body of the boring device; Fixing the sample lens and determining its position; removing the sample lens from the perforation device; fixing a lens for which a through hole is to be formed at the determined position. And a step of forming a through hole in the lens by the cutting body, drilling method. 6. The step of determining the position of the sample lens, the step of preparing a fixed rod including a shaft having an outer diameter substantially equal to the inner diameter of the through-hole of the sample lens; and the shaft of the fixed rod. 6. The method according to claim 5, further comprising: inserting the fixing rod into the through-hole of the sample lens; fixing the fixing rod at a position corresponding to the cutting body of the drilling device; and fixing the sample lens. How to make holes. 7. The sample lens is positioned by a plurality of movable support pins that can be fixed around the sample lens to determine its position, and the lens is fixed by the fixed support pin. The method according to claim 5, wherein the hole is positioned. 8. A distance between an edge of the sample lens and the shaft of the fixing rod is determined by pressing a pressing plate against an edge of the sample lens while the fixing rod is fixed. The distance between the edge of the lens and the through hole is determined by pressing the edge of the lens against the pressing plate after removing the sample lens. The method of making a hole as described. 9. A hole making device for forming a through hole in a lens applied to a lens mounting structure for eyeglasses, wherein a sample lens having a through hole formed at a predetermined position is fixed. Lens fixture to determine the position,
And a drilling device including a cutting body for forming a through-hole in the lens after fixing a lens for which a through-hole is to be formed by the lens fixture at the same position as a fixing position of the sample lens. 10. A fixing concave portion for fixing a fixing rod having a shaft portion to be inserted into a through hole of the sample lens, wherein the fixing concave portion is provided in a state where the shaft portion is inserted into the through hole of the sample lens. The hole punching device according to claim 9, wherein the position of the through hole of the sample lens is determined by fixing the fixing rod to the hole. 11. A position of the sample lens is determined by including a plurality of movable support pins for fixing the sample lens, and fixing the support pin in contact with a periphery of the sample lens. The perforator according to claim 9 or claim 10. 12. The perforating apparatus according to claim 11, wherein after determining the position of the sample lens, at least one of the support pins is movable and can return to a position where the sample lens is fixed. .