JP3086314U - Lens fastening parts, fastening tools, and rimless glasses for rimless glasses - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] To prevent rimless spectacles from cracking or cracking of the lens even if the lens and the yoke or bridge are firmly tightened. A cylindrical nut portion and a lens sunk hole 1 are provided.
2 is formed so as to have a hexagonal nut portion having substantially the same diameter as that of the cylindrical nut fitted substantially with the collar 2 and a flange portion 16 which is substantially equal in diameter to the sink hole and abuts against the sink hole bottom. A lens for rimless spectacles, characterized in that a complex nut 13 that can be accommodated in the lens 10 is thinned at its tip 21 so as to have an outer diameter substantially equal to the diameter of the sunken hole or the flange. Fitted into the tip of the fastening tool 20, and inserted as it is from the lens sink hole to the lens through hole 11,
A screw portion for fastening a bridge or a trowel 19 was fitted to the distal end of the composite nut from the through-hole on the opposite lens surface, and the screw 23 or the nut was tightened and assembled by a driver or the tool.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to fastening parts and fastening tools used for rimless eyeglasses, and rimless eyeglasses manufactured using the same.

[0002]

[Prior art]

 Conventionally, in a rimless spectacles bridge and a structure for fastening a yoke and a lens, a structure is often used in which the bridge or the yoke is screwed into a lens through-hole, and the other surface of the lens is fastened with a nut. Came.

[0003]

[Problems to be solved by the invention]

 However, in the above structure, when a lens for correcting vision is used, the curvature of the front surface of the lens and the curvature of the back surface of the lens are different, and it is particularly prominent at the edge of the lens. If the bridge or the yoke is tightened firmly with screws and nuts, cracks are likely to occur in the lens, or the screws may bend in the lens through-holes and become stuck.

[0005] Furthermore, the nut portion protrudes from the lens surface, making it difficult to wipe the lens.

[0006]

[Means for Solving the Problems]

 Therefore, in the present invention, in order to solve the above-mentioned problems, first, a lens through-hole for fixing a bridge or a yoke and the through-hole formed in at least one of the lens surfaces. In a fastening part used for rimless spectacles having a lens provided with a hole and a concavity hole, the part has a cylindrical nut part fitted into the through-hole, and a fitting part substantially in the sunken hole. The head having substantially the same diameter as the cylindrical nut to be fitted is in contact with the hexagonal nut portion, and between the cylindrical nut portion and the hexagonal nut portion, approximately the diameter of the sinking hole and the bottom of the sinking hole. A lens fastening part for rimless spectacles characterized by being a composite nut formed so as to have a flange and being housed in the lens was devised and created.

Secondly, there is provided a nut turning tool that fits into a hexagonal portion of the head of the composite nut that can be stored in a lens, and that fits in a gap between the lens sinking hole and a hexagonal nut portion. The composite nut can be easily provided by providing a lens fastening tool for rimless spectacles, the tip of which is formed to be thin so as to have an outer diameter substantially equal to the diameter of the sunken hole or the flange. Can be easily tightened to the lens.

[0008] Then, the hexagonal head of the composite nut according to the first means is fitted into the tip of the fastening tool of the second means, and is directly inserted from the lens sinking hole to the lens through-hole. A rimless structure having a structure in which a threaded portion for fastening a bridge or a fastener is fitted to the tip of the composite nut from a through hole, and a screw or a nut is fastened and assembled with a screwdriver or the fastening tool. By providing spectacles, the above problem was completely solved.

[0009]

【Example】

 FIG. 1 is a perspective view of a first embodiment of the present invention. FIG. 1 is a perspective view showing a first embodiment of the present invention. In a fastening component 13 used for rimless spectacles having a lens 10 provided with a through-hole 12 concentric with the through-hole formed in the lens surface, the component fits into the through-hole. A cylindrical nut portion 14 having a distal end, a nut portion 15 having substantially the same diameter as the cylindrical nut that is substantially fitted into the sink hole and having a hexagonal head, the cylindrical nut portion and the hexagon nut A composite nut 13 that can be housed in the lens and is formed in the middle of the portion so as to have a flange 16 that is substantially equal to the diameter of the sink hole and abuts against the bottom 18 of the sink hole. As shown in FIG. 2, a bridge is formed on the surface of the lens 10. It is inserted into the lens through-hole 11 of the endpiece 19 by screws 23, to insert a stop wearing composite nut 13 from the lens to sink hole from the opposition side of the surface.

FIG. 3 is a front view and a partial cross-sectional view of a fastening tool for inserting the fastening nut 13 into the lens from the sink hole, and shows a gap between the lens sink hole 12 and the hexagon nut portion 15. A lens fastening tool 20 for rimless spectacles, characterized in that the tip portion 21 is formed so as to be thin so as to have an outer diameter substantially fitting to the diameter of the sink hole 12 or the flange portion 16 so as to fit in the lens. .

Then, as shown in FIG. 4, the hexagonal head portion 15 of the fastening nut 13 is fitted into the opening of the thin-walled portion 21 of the nut turning fastening tool 20, and is directly inserted through the sink hole 12 of the lens 10. Then, the cylindrical nut portion 14 is inserted into the lens through hole 11 until the flange portion 16 hits the lens sink hole bottom 18. Then, it is fixed in the state of being fitted as it is, and a bridge or a flap part 19 is applied to the opening of the through hole on the side opposite to the lens, and the screw 23 is screwed into the tip of the cylindrical nut with a driver. In this case, of course, the sink hole bottom 18 is provided substantially parallel to the surface on the opposite side of the lens. Therefore, even if the screw 23 is tightened a little excessively, the lens will not crack and the screw will bend in the middle. No more. Also, the head of the nut fits inside the lens without protruding from the lens surface, the design is refreshing, and the lens can be wiped smoothly without getting caught.

The sunken hole 12 may be provided on one of the two surfaces having the smaller curvature on both surfaces of the lens, but may be provided on both surfaces as shown in FIG.

[0013] Since the above-mentioned sinkhole can be easily opened with a commercially available counterbore drill, the sinkhole can be formed immediately at a retail store and no skill is required.

In the case where a screw 24 integrally provided at the end of the bridge or the yoke 19 is provided as shown in FIG. 6, the screw 24 is fitted through the lens surface through hole 11a, and then the nut is turned. The hexagonal portion of the composite nut is fitted into the opening of the tip of the tool 20, and then directly inserted into the lens sinking hole 12a. The tip of the screw 24 is inserted into the screw hole of the cylindrical nut at the tip of the composite nut 13. When the nuts are turned and screwed together, the rimless eyeglasses can be easily assembled and completed. Of course, any alignment of the bridge or yoke must be done in any assembly.

FIG. 7 is a cross-sectional view of a main part for explanation according to the present invention, in which a diameter m ₂ of a sinking hole 12 b provided on the lens surface and a diameter m _{1 of} a flange 16 at an intermediate portion of the composite nut 13. The diameter of the sinking hole 12b formed in the lens is too large because the wall diameter of the tip 21 of the tool 20 for fixing the nut is normally too large for a commercially available nut. As a result, the edge of the lens becomes weak and the field of view also worsens. Therefore the tool 2 0 the leading portion 21 is processed cutting thin-walled, the outer diameter m is the manner become substantially the same diameter to the diameter m ₁ of the flange portion 16 of the composite nut. Naturally, it sinks diameter m ₂ of the hole 12b may better only small coming out, but the collar portion 16 shall be securely stopped size.

FIG. 8 shows the final tightened state. Even if the screws or nuts are firmly tightened, no bending of the screws and no lens cracks have occurred. The lens surface was also refreshed.

Further, the lens fastening composite nut may be one in which a screw hole is entirely penetrated as shown in FIG. 8, or one in which the hexagonal nut portion of the head is in a bag shape as shown in FIG. I do not care.

[0018]

[Effect of the invention]

 As described above, by using the parts and tools according to the present invention, stress is no longer applied to the lens, so that cracks do not occur in the lens hole and there is no bending of the set screw and tighten firmly. It is possible to assemble it, and furthermore, there is no protrusion when wiping the lens, making it easier to wipe, and it also has a cleaner design and better appearance. Further, it has the advantage that the number of parts to be assembled is reduced, and that anyone can easily assemble rimless spectacles without skill.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a principal part of the first embodiment of the present invention;

FIG. 3 is a front view and a partial sectional view of a fastening tool according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part when assembling another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part of another embodiment of the present invention in which sunk holes are provided on both surfaces of the lens.

FIG. 6 is a cross-sectional view of a main part when assembling another embodiment of the present invention.

FIG. 7 is a sectional view of a principal part for explanation of another embodiment of the present invention.

FIG. 8 is a sectional view of a main part of the assembled rimless glasses according to the embodiment of the present invention;

FIG. 9 is a perspective view of a fastening part according to the first embodiment of the present invention.

FIG. 10 is a perspective view of the fastening part according to the embodiment of the present invention in the case of a bag-shaped head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lens 11, 11a Through-hole 12, 12a Sink hole 13, 13a Compound nut for fastening 14 Cylindrical nut part 15 Hexagon nut part 16 Flange part 17 Screw hole 18 Sink hole bottom 19 Yoroy or bridge 20 Nut turning tool (fastening tool) 21) Thin portion at the tip 22 Tube portion 23 Screw 24 Implanted screw portion 25 Bush or washer

Claims (3)

[Utility model registration claims] 1. A rimless spectacle having a lens provided with a lens through hole for fixing a bridge or a yoke and a sunken hole concentric with the through hole formed on at least one of the lens surfaces. In the fastening parts used,
The part has a cylindrical nut portion with a tip that fits into the through hole, a hexagonal nut portion with a head approximately the same diameter as the cylindrical nut that fits approximately into the sinking hole, In the middle of the nut portion and the hexagonal nut portion, a flange portion which is substantially equal to the diameter of the sinking hole and abuts against the sinking hole bottom is formed,
A lens fastening part for rimless spectacles, which is a composite nut that can be stored in the lens. 2. A nut turning tool which fits into a hexagonal part of a head of a compound nut which can be stored in a lens according to claim 1, and which fits in a gap between the lens sinking hole and a hexagonal nut part. A lens fixing tool for rimless spectacles, wherein a tip portion is formed to be thin so as to have an outer diameter substantially equal to a diameter of the sunken hole or the flange portion. 3. A hexagonal head of the composite nut according to claim 1 is fitted into the tip of the fastening tool according to claim 2, and is directly inserted from the lens sinking hole to the lens through-hole. A rimless spectacle having a structure in which a screw portion for fastening a bridge or a stake is fitted to a tip end of the composite nut from a surface through hole, and a screw or a nut is tightened and assembled by a driver or the fastening tool.