JP3077068U - Lens mounting structure for frameless glasses - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent the field of view when wearing spectacles, to more securely hold and fix the lens, to provide excellent safety, and to clean the lens surface. The present invention also provides a lens mounting structure for frameless eyeglasses with almost no hindrance. SOLUTION: A connecting portion 16 is arranged on a surface side of a lens 12. The connecting portion 16 includes a connecting portion through hole 22 and the lens 1.
2 and a pin portion 24 protruding toward the front side. Pin part 2
4 is inserted and locked in a bottomed hole 26 provided in the lens 12. The fastener 28 is inserted into the lens through-hole 14 through the connection part through-hole 22. The screw portion 30a of the fastener 28 and the screw portion 14a of the lens through hole 14 are screwed together, and the fastener 28
Is attached so as not to protrude from the rear surface side of the lens 12.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lens mounting structure for frameless eyeglasses.

[0002]

[Prior art]

 FIG. 8 is an exploded perspective view showing a main part of a conventional lens mounting structure for frameless eyeglasses, which is a background of the present invention, and FIG. 9 is a partial sectional view of the lens mounting structure seen from a plane side. The conventional lens mounting structure 1 for frameless eyeglasses includes, for example, a plastic lens 2 having a circular through hole 2a. A lens stopper 3 is arranged from the front side of the lens 2. The lens stopper 3 has an L-shaped stopper main body 4. The stopper member main body 4 has a ring-shaped stopper piece 5 formed at one longitudinal end thereof, and a contact piece 6 formed at the other longitudinal end thereof. The contact piece 6 is in contact with the side edge 2b of the lens 2 to fix the lens 2 so that it does not move. The contact piece 6 is connected to the eyeglass 7. The tomorrow 7 is rotatably connected to a temple (not shown) via a hinge (not shown). The stopper piece 5 of the lens stopper member 3 is arranged so as to correspond to the through hole 2 a of the lens 2, and is fixed by fixing means including a metal screw 8 and a nut 9.

[0003]

[Problems to be solved by the invention]

 However, in such a conventional lens mounting structure 1 for frameless spectacles, since the contact piece 6 is formed on the lens stopper 3, the field of view when the spectacles are worn is restricted accordingly. At the same time, the shape of the lens stopper 3 becomes complicated. In this case, if the contact piece 6 is not formed, the lens 2 rotates around the through hole 2a of the lens 2 and the loosening phenomenon occurs at the mounting portion between the lens 2 and the lens stopper 3 due to the rotation. There was probably a fear of doing so. Further, in this lens mounting structure 1, since the lens stopper 3 is fixed by the fixing means composed of the metal screw 8 and the nut 9, if the screw 8 is excessively tightened, a plastic There is a possibility that the lens 2 made of glass may be damaged. Further, in the lens mounting structure 1, since the angular portions such as the screws 8 and the nuts 9 protrude from the rear surface side of the lens 2, safety when wearing glasses is threatened, or the lens 2 surface is cleaned. When wiping with a cleaning cloth or the like, there was a case where the cleaning cloth or the like was damaged by the angular protrusion.

[0004] Therefore, the main object of the present invention is not to limit the field of view when wearing glasses, and to more securely hold and fix the lens, and is excellent in safety, An object of the present invention is to provide a lens mounting structure for frameless eyeglasses, which hardly hinders cleaning of a lens surface.

[0005]

[Means for Solving the Problems]

 The lens mounting structure of the frameless spectacles according to the present invention includes a lens, a lens through hole penetrating from one principal surface side of the lens to the other principal surface side of the lens near the edge of the lens, and an inner peripheral surface of the lens through hole. A connecting portion for connecting the lens to the bridge and / or the bridge, and a connecting portion which is communicated with the lens through hole and penetrates the connecting portion. A hole having a screw portion that can be screwed with the screw portion of the lens through hole, a fastener inserted from one principal surface side or the other principal surface side of the lens, and holding and fixing the lens and the coupling portion. A locking piece protruding from the connecting portion and being inserted into the lens, and the end of the fastener is attached so as not to partially protrude from at least the other main surface of the lens. , Frameless eyeglass lens mounting structure That. The detent piece includes a cylindrical or columnar pin portion, and is effective when the pin portion is inserted and locked in a bottomed hole provided in the lens. The connecting portion has a lengthwise direction and includes a planar connecting portion main body connected to the bridge and / or the bridge, and a connecting portion through hole is provided at an intermediate portion in the longitudinal direction of the connecting portion main body. The detent pieces can be arranged at predetermined intervals in the length direction of the connecting portion main body with the portion through hole interposed therebetween. The connecting portion has a lengthwise direction and includes a flat connecting portion main body connected to the bridge and / or the bridge, and a connecting portion through-hole is provided at an intermediate portion in the longitudinal direction of the connecting portion main body. The detent piece is provided at a predetermined distance from the connecting portion through hole, between the distal end portion of the connecting portion main body and the connecting portion through hole, or between the connecting portion through hole and the base portion side of the connecting portion main body. It can also be placed in one of the spaces. Further, the connecting portion has a lengthwise direction, and is provided at a flat connecting portion main body connected to the bridge and / or the bridge, and an intermediate portion in the longitudinal direction of the connecting portion main body, and has a connecting portion through hole. And a flange piece having the same. Further, the pin portion may have a screw portion on its outer peripheral surface, and the bottomed hole portion may be provided with a screw portion on its inner peripheral surface to be screwed with the screw portion of the pin portion. The fasteners may include machine screws, such as slotted round screws, cross-recessed round screws, and / or bolts, such as hexagonal bolts, square bolts, hexagonal bolts, made of plastic material. . The connection can be made of a metal and / or plastic material.

[Action]

 In the lens mounting structure of the frameless glasses according to the present invention, the fastener is inserted into the lens through hole of the lens through the connecting portion through hole of the connecting portion. At this time, the screw part of the fastener and the screw part of the lens through hole are screwed. Further, the detent piece of the connecting portion is inserted and locked in the lens. Therefore, the lens can be more securely held and fixed without providing a contact piece that is in contact with the side edge of the lens as in the related art. In this case, the rotation preventing piece prevents the joint portion and the lens from rotating together, thereby preventing the lens and the joint portion from loosening. Furthermore, since the fastener is attached so that its end does not at least partially protrude from the other main surface side of the lens, the other main surface side of the lens is substantially flush. Therefore, the safety is excellent when the user is wearing glasses, and even when the lens surface is wiped with a cleaning cloth or the like, damage to the cleaning cloth or the like is prevented.

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.

[0007]

[Embodiment of the invention] 【Example】

 FIG. 1 is an exploded perspective view showing a main part of an embodiment of the present invention, and FIG. 2 is a partial sectional view of a main part of the embodiment shown in FIG. The lens mounting structure 10 for frameless glasses according to the present embodiment includes a lens 12 having a predetermined orb shape. The lens 12 is formed of a plastic material. A lens through hole 14 having a circular shape as viewed from the front is provided on the surface of the lens 12 near the edge thereof. The lens through hole 14 penetrates from the front side to the rear side of the lens 12. On the inner peripheral surface of the lens through hole 14, a screw portion 14a such as a female screw is provided.

On the front side of the lens 12, a connecting portion 16 for connecting the lens 12 and the lens 18 is arranged. The connecting portion 16 includes, for example, a connecting portion main body 20 having a horizontally long rectangular planar shape in a front view. A flange piece 22 is formed near the distal end portion 20a at an intermediate portion in the longitudinal direction of the connecting portion main body 20. The flange piece 22 is formed in a ring plate shape having, for example, a circular connecting portion through hole 22a at the center thereof.

Further, on the surface of the connecting portion body 20 facing the surface of the lens 12, for example, two pin portions 24 are provided as detent pieces. The two pin portions 24 are arranged such that the flange piece 22 is located between them, that is, with the coupling portion through hole 22a interposed therebetween, for example, the two pin portions 24. The pin portions 24 are formed, for example, in a columnar shape, and are arranged at predetermined intervals in the length direction of the connecting portion main body 20. The connecting portion main body 20, the flange piece 22 and the two pin portions 24 are integrally formed of a metal material and / or a plastic material.

On the other hand, the lens 12 is provided with two, for example, bottomed holes 26 into which the two pins 24 are inserted and locked. The two bottomed holes 26 are provided at positions corresponding to the two pins 24. In this case, the distance between the axis centers of the two pin portions 24 and the distance between the hole centers of the two bottomed hole portions 26 are formed to have substantially the same length. Further, the distance from the axis center of the two pin portions 24 to the hole center of the connecting portion through hole 22a and the distance from the hole center of the two bottomed hole portions 26 to the hole center of the lens through hole 14a are substantially equal. It is formed at the same interval.

The lens 12 and the connecting portion 16 are held and fixed by fasteners 28. The fastener 28 has, for example, a cylindrical shaft portion 30. On the outer peripheral surface of the shaft portion 30, a screw portion 30a made of, for example, a male screw is provided. At one end of the shaft portion 30 in the axial direction, for example, a crown-shaped head 32 larger than the shaft diameter of the shaft portion 30 is formed. In this embodiment shown in FIGS. 1 and 2, as the fastener 28, for example, a round screw with a cross-hole made of a plastic material such as polycarbonate is used. In this embodiment, the axial length of the shaft portion 30 of the fastener 28 is formed longer than the thickness of the lens 12.

In the present embodiment, first, the connecting portion 16 is arranged on the front side of the lens 12. Next, the two pin portions 24 of the connecting portion 16 are inserted and locked in the bottomed holes 26 of the two lenses 12. Further, the fastener 28 is inserted into the lens through-hole 14 a of the lens 12 from the connecting-part through-hole 22 a of the connecting part 16. By screwing the screw portion 30a of the fastener 28 and the screw portion 14a of the lens through hole 14, the connecting portion 16 and the lens 12 are held and fixed. At this time, the other end in the axial direction of the shaft portion 30 of the fastener 28 protrudes from the back surface side of the lens 12 as shown by a two-dot chain line in FIG. Cut by means.

In the lens mounting structure 10 for frameless eyeglasses according to the embodiment of FIGS. 1 and 2, as described above, the screw portion 30a of the fastener 28 and the screw portion 14a of the lens 12 are screwed, and Since the pin portion 24 of the connecting portion 16 is inserted and locked into the bottomed hole portion 26 of the lens 12, the pin portion 24 comes into contact with the side edge of the lens as shown in the conventional example of FIGS. Even if the piece 6 is not provided, the lens 12 can be more securely held and fixed. Further, since the connecting portion 16 and the lens 12 are prevented from rotating together by the pin portion 24, loosening of the connecting portion is prevented. The phenomenon is also prevented.

Further, as compared with the conventional example shown in FIGS. 8 and 9, the other end of the shaft portion 30 of the fastener 28 does not partially protrude from the back surface of the lens 12, Is almost flush. Therefore, according to this embodiment, the safety is excellent when the user is wearing glasses, and even when the lens surface is wiped with the cleaning cloth or the like, it is possible to prevent the cleaning cloth or the like from being damaged. .

FIG. 3 is an exploded perspective view showing a main part of another embodiment of the present invention, and FIG. 4 is a partial cross-sectional view of the main part of the embodiment shown in FIG. . The embodiment shown in FIGS. 3 and 4 is different from the embodiment shown in FIGS. 1 and 2 in particular in that the flange piece 22 is formed at the distal end portion 20 a of the connecting portion main body 20 and the length direction of the connecting portion main body 20 is increased. The difference is that only one pin portion 24 is formed in the middle portion of the connecting member 20, that is, between the flange piece 22 and the base portion side 20b of the connecting portion main body 20. The pin portion 24 is disposed near the flange piece 22 at a predetermined distance from the peripheral edge of the flange piece 22. In this case, the distance from the hole center of the connecting portion through hole 22a to the axis center of the pin portion 24 and the distance from the hole center of the lens through hole 14 to the hole center of the bottomed hole 26 are substantially the same. Is done.

FIG. 5 is an exploded perspective view showing a main part of still another embodiment of the present invention, and FIG. 6 is a partial sectional view of a main part of the embodiment shown in FIG. is there. The embodiment shown in FIGS. 5 and 6 is different from the embodiment shown in FIGS. 1 and 2 in particular, in particular, one of the pins arranged between the flange piece 22 of the connecting portion main body 20 and the base portion 20b side. The difference is that the unit 24 does not exist. That is, in the present embodiment, one pin portion 24 is disposed closer to the distal end portion 20a than the flange piece 22 of the connecting portion main body 20. In this case, the distance from the hole center of the connection part through hole 22a to the axis center of the pin part 24 and the distance from the hole center of the lens through hole 14 to the hole center of the bottomed hole part 26 are as described in the above embodiment. It is formed almost the same as above.

FIG. 7 is an exploded perspective view showing a main part of still another embodiment of the present invention. The embodiment shown in FIG. 7 is particularly different from the above embodiments in that the flange piece 22 of the connecting portion main body 20 is not a ring plate but a rectangular plate and is integrated with the connecting portion main body 20. It is different. In other words, in this embodiment, the flange piece 22 is not formed, and the connecting portion through hole 22a is simply arranged at a predetermined position of the connecting portion main body 20 formed in a horizontally long rectangular plane shape. .

In each of the above-described embodiments, the projecting portion 31 of the shaft portion 30 of the fastener 28 projecting to the rear surface side of the lens 12 is cut so that the projecting portion does not exist on the rear surface side of the lens 12. However, instead of this, for example, by using the fastener 28 in which the axial length of the shaft portion 30 is set shorter than the thickness of the lens 12, the fastener 28 can be mounted on the rear side of the lens 12 without being protruded. A structure may be adopted.

In each of the above-described embodiments, for example, a screw portion is provided on the outer peripheral surface of the pin portion 24, and the inner peripheral surface of the bottomed hole portion 26 is screwed with the screw portion of the pin portion 24. A thread portion may be provided. Further, for example, a through hole may be provided instead of the bottomed hole 26 to insert and lock the pin 24. In this case, when the length of the pin portion 24 is longer than the thickness of the lens 12, the fastener 28 protruding from the rear surface side of the lens 12 may be cut similarly to the above-described embodiments. The length of the pin portion 24 may be smaller than the thickness of the lens 12 so that the pin portion 24 does not protrude from the rear surface of the lens 12. Further, in addition to those shown in the above-described embodiments, the fastener 28 may be a round flat machine screw with a slot, a pan screw with a slot, a pan screw with a cross hole, a slot machine screw, or the like. It may include other small screws, such as a small round head machine screw and a cross-recessed round head screw, and / or other bolts such as square bolts, square hole bolts, and the like.

In each of the above-described embodiments, the connection structure between the lens 12 of the frameless eyeglasses and, for example, the lens 18 is illustrated. The connection structure between the bridge 12 and a bridge, for example, can be applied as appropriate.

[0021]

[Effects of the Invention] According to the invention of the present application, the field of view is not limited when wearing spectacles, and the lens can be more securely held and fixed, and is excellent in safety. A lens mounting structure for frameless spectacles that hardly hinders cleaning is obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an embodiment of the present invention.

FIG. 2 is a partial cross-sectional illustrative view of a main part of the embodiment shown in FIG. 1 as viewed from a plane side.

FIG. 3 is an exploded perspective view showing a main part of another embodiment of the present invention.

FIG. 4 is a partial cross-sectional illustrative view of a main part of the embodiment shown in FIG. 3 as viewed from a plane side.

FIG. 5 is an exploded perspective view showing a main part of still another embodiment of the present invention.

FIG. 6 is a partial cross-sectional illustrative view of a main part of the embodiment shown in FIG. 5 as viewed from a plane side.

FIG. 7 is an exploded perspective view showing a main part of still another embodiment of the present invention.

FIG. 8 is an exploded perspective view showing a main part of a conventional lens mounting structure for frameless eyeglasses, which is a background of the present invention.

FIG. 9 is a partial cross-sectional illustrative view of the embodiment of FIG. 8 as viewed from the plane side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lens mounting structure of frameless glasses 12 Lens 14 Lens through hole 14a Screw part 16 Connecting part 18 Ji 20 Connecting part main body 20a Tip part of connecting part main body 20b Root part of connecting part main body 22 Flange piece 22a Connecting part through hole 24 pin Part 26 bottomed hole part 28 fastener 30 shaft part 30a screw part 32 head

Claims (8)

[Utility model registration claims] A lens, a lens through-hole penetrating from the one main surface side of the lens to the other main surface side of the lens near an edge of the lens, and a screw disposed on an inner peripheral surface of the lens through hole. A connecting portion disposed on one main surface side of the lens, for connecting the lens to a lens and / or a bridge; a connecting portion through hole communicating with the lens through hole, passing through the connecting portion; A fastener that has a threaded portion that can be screwed with the threaded portion of the lens through hole, is inserted from one principal surface side or the other principal surface side of the lens, and holds and fixes the lens and the coupling portion; A detent piece that protrudes from the connecting portion and is inserted into and locked to the lens, wherein the end of the fastener is attached so as not to partially protrude at least from the other main surface side of the lens. Characteristic, no border Eyeglass lens mounting structure. 2. The rotation-stopping piece includes a cylindrical or columnar pin, and the pin is inserted and locked into a bottomed hole provided in the lens. 2. The lens mounting structure for frameless eyeglasses according to 1. 3. The connecting portion includes a flat connecting portion main body having a length direction and connected to a bridge and / or a bridge, and the connecting portion is provided at an intermediate portion in the longitudinal direction of the connecting portion main body. The through-hole is provided, and the detent piece is provided at a predetermined interval in the length direction of the connecting portion main body with the connecting portion through-hole interposed therebetween, wherein The lens mounting structure of the frameless eyeglasses according to claim 1. 4. The connecting portion has a length direction and includes a flat connecting portion main body connected to a bridge and / or a bridge, and the connecting portion is provided at an intermediate portion in the longitudinal direction of the connecting portion main body. A through-hole is provided, and the detent piece is separated from the connecting portion through-hole by a predetermined distance, between the distal end of the connecting portion main body and the connecting portion through-hole, or the connecting portion through-hole. The lens mounting structure for frameless eyeglasses according to claim 1, wherein the lens mounting structure is disposed on one of a portion between the base portion and the connecting portion main body. 5. The connecting portion has a length direction, and is provided at a plane connecting portion main body connected to a wisdom and / or a bridge, and is disposed at an intermediate portion in the length direction of the connecting portion main body, And a flange piece having the connection portion through-hole.
A lens mounting structure for frameless eyeglasses according to claim 4. 6. The pin portion has a screw portion on an outer peripheral surface thereof, and a screw portion to be screwed with a screw portion of the pin portion is provided on an inner peripheral surface of the bottomed hole portion. Characterized by the fact that
A lens mounting structure for the frameless glasses according to claim 2. 7. The fastener according to claim 1, wherein the fastener is a small screw such as a slotted round screw or a cross-shaped round screw formed of a plastic material, and / or a hexagon bolt, a square bolt, a hexagon socket bolt or the like. 7. A bolt including a bolt.
The lens mounting structure for frameless glasses according to any one of the above. 8. The lens mounting structure for frameless eyeglasses according to claim 1, wherein the connecting portion is formed of a metal material and / or a plastic material.