JP2023102915A - Spectacles and hinge structure of the same - Google Patents

Spectacles and hinge structure of the same Download PDF

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JP2023102915A
JP2023102915A JP2022003666A JP2022003666A JP2023102915A JP 2023102915 A JP2023102915 A JP 2023102915A JP 2022003666 A JP2022003666 A JP 2022003666A JP 2022003666 A JP2022003666 A JP 2022003666A JP 2023102915 A JP2023102915 A JP 2023102915A
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wire
temple
shaft core
screw
core member
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JP7440106B2 (en
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雅希 大森
Masaki Omori
智之 松下
Tomoyuki Matsushita
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SKY Co Ltd
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SKY Co Ltd
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Abstract

To provide spectacles having a hinge structure which is less likely to be loosened even when being repeatedly opened/closed.SOLUTION: Spectacles have an armor member which is connected to the outside end of a pair of right and left lenses and is composed of a metallic wire rod, and a temple member which is rotatably connected to the armor member through a hinge structure and is composed of a metallic wire rod, wherein the hinge structure has a body part having a hole formed on a side peripheral surface, a shaft core member which has a diameter larger than that of the body part and has a head having a screw hole in an axial direction on the top face, a body part screwed with the screw hole of the shaft core member, a screw member having a head having a diameter larger than that of the body part, two line ends that the armor member has, and one wire end that the temple member has, the one wire end of the armor member is inserted into the hole of the shaft core member, the other wire end is sandwiched between the top face of the head of the shaft core member and the seating surface of the head of the screw member, the screw member is coupled to the shaft core member, the two wire ends are fixed, and the wire end of the temple member is wound around a region closer to the head side than the hole on the side peripheral face of the body part of the shaft core member.SELECTED DRAWING: Figure 1

Description

本発明は眼鏡及びそのヒンジ構造に関するものである。 The present invention relates to spectacles and their hinge structure.

従来、眼鏡においてヨロイ部材とテンプル部材とを回動可能に接続するヒンジ構造としては、特許文献1に示すものが知られている。このヒンジ構造は、ヨロイ部材の端部に形成された上下二段のソケットの間に、挿通孔が形成されたテンプル部材を挿入し、これをネジで締めるようにすることで、ヨロイ部材とテンプル部材とが回動可能な構成となっている。 2. Description of the Related Art Conventionally, as a hinge structure for rotatably connecting an endpiece member and a temple member in spectacles, the structure disclosed in Patent Document 1 is known. In this hinge structure, a temple member having an insertion hole is inserted between two sockets formed at the ends of the end pieces of the end pieces, and the temple members are tightened with screws so that the end pieces and the temple members can rotate.

特開2008-164646号公報JP 2008-164646 A

ところで上記したような従来のヒンジ構造は、その連結部において、テンプル部材とヨロイ部材とを上下からネジで締めて固定するような構成であるため、テンプル部材の開閉を繰り返すにつれて徐々にネジが緩くなってしまい装着感が低下するという問題がある。 By the way, the conventional hinge structure as described above has a structure in which the temple member and the endpiece member are fixed by screwing them from above and below at the connecting portion, so there is a problem that the screw gradually loosens as the temple member is repeatedly opened and closed, resulting in a decrease in wearing comfort.

本発明は、上記課題を解決すべくなされたものであり、開閉を繰り返しても緩みにくい新規なヒンジ構造を備える眼鏡を提供することをその主たる課題とするものである。 SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a main object of the present invention is to provide spectacles having a novel hinge structure that does not easily loosen even after repeated opening and closing.

すなわち本発明に係る眼鏡は、左右一対のレンズと、前記各レンズの外側端部に接続された金属線材から成るヨロイ部材と、ヒンジ構造を介して前記ヨロイ部材に回動可能に接続された金属線材から成るテンプル部材とを備え、前記ヒンジ構造が、側周面に穴が形成された胴部と、該胴部よりも径が大きく、軸方向に沿ったネジ穴がその頂面に形成された頭部とを有する軸芯部材と、前記軸芯部材のネジ穴に螺合する胴部と、該胴部よりも径が大きい頭部とを有するネジ部材と、前記ヨロイ部材が有する2つの線端部と、前記テンプル部材が有する1つの線端部とを備え、前記ヨロイ部材の一方の線端部が前記軸芯部材の穴に差し込まれるとともに、他方の線端部が前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間に挟まれ、前記ネジ部材を前記軸芯部材に締結することにより当該2つの線端部が固定されており、前記テンプル部材の線端部が、前記軸芯部材の胴部の側周面における前記穴よりも頭部側の領域に巻き付けられていることを特徴とする。 That is, the spectacles according to the present invention comprise a pair of left and right lenses, an endpiece member made of a metal wire connected to the outer end of each lens, and a temple member made of a metal wire connected to the end pieces rotatably via a hinge structure. A screw member having a body portion to be screwed together and a head portion larger in diameter than the body portion, two wire end portions of the endpiece member, and one wire end portion of the temple member, wherein one wire end portion of the end piece member is inserted into the hole of the shaft core member, and the other wire end portion is sandwiched between the top surface of the head portion of the shaft core member and the seat surface of the head portion of the screw member, and the two wire end portions are fixed by fastening the screw member to the shaft core member. and a wire end portion of the temple member is wound around a region of the side peripheral surface of the trunk portion of the shaft core member closer to the head than the hole.

このような構成であれば、ネジ部材はヨロイ部材の線端部を軸芯部材に固定するためだけに用いられており、軸芯部材の胴部に巻き付けられたテンプル部材の線端部にはネジ部材の締め付け応力が一切かからないように構成しているので、テンプル部材の開閉を繰り返すことによるヒンジ構造における緩みを防止することができる。 With such a configuration, the screw member is used only to fix the wire end of the endpiece member to the shaft core member, and the wire end of the temple member wound around the body of the shaft core member is not subjected to any tightening stress of the screw member. Therefore, it is possible to prevent loosening of the hinge structure due to repeated opening and closing of the temple member.

また前記眼鏡は、前記軸芯部材の胴部の側周面に螺旋溝が形成されており、前記テンプル部材の線端部が当該螺旋溝に螺合するように巻き付けられているのが好ましい。
このような構成であれば、テンプル部材の線端部を螺旋溝に螺合させるようにすることで、軸芯部材とテンプル部材との間に適度な摩擦を設け、テンプル部材がパタパタと勝手に開閉しないようにできる。
Further, it is preferable that the spectacles have a spiral groove formed in the side peripheral surface of the trunk portion of the shaft core member, and the wire end portion of the temple member is wound so as to be screwed into the spiral groove.
With such a configuration, by screwing the wire ends of the temple members into the spiral grooves, moderate friction is provided between the shaft core member and the temple members, and the temple members can be prevented from flapping open and closed without permission.

また前記眼鏡は、前記テンプル部材を回動させて畳んだ状態から開いていくと、前記テンプル部材の線端部が、前記軸芯部材の螺旋溝に沿って回転することでその軸方向に沿って移動し、前記軸芯部材の頭部又は前記穴に差し込まれた前記ヨロイ部材の線端部に接触することにより前記テンプル部材の回動動作が制限されて全開状態となるのが好ましい。
このような構成であれば、テンプル部材を全開状態にすると、軸芯部材の頭部又はヨロイ部材の線端部と螺旋溝とにより、テンプル部材の先端部に対して上下から締結力を加えることができ、テンプル部材を全開状態でしっかりと固定することができるようになる。
Further, when the eyeglasses are opened from a folded state by rotating the temple members, it is preferable that the wire ends of the temple members rotate along the spiral grooves of the shaft core member, thereby moving along the axial direction of the eyeglasses and coming into contact with the head of the shaft core member or the wire ends of the end pieces inserted into the holes, thereby restricting the rotational movement of the temple members and bringing the temple members into a fully opened state.
With such a configuration, when the temple member is fully opened, the head portion of the shaft core member or the wire end portion of the endpiece member and the spiral groove can apply a fastening force to the distal end portion of the temple member from above and below, so that the temple member can be firmly fixed in the fully opened state.

テンプル部材が想定している全開状態を超えて過度に開いてしまうことを防止するには、前記ヨロイ部材の他方の線端部が、前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間から突出する突出部分を有しており、前記テンプル部材の全開状態において、前記テンプル部材の線端部と前記ヨロイ部材の線端部の突出部分とが接触して干渉するように構成されているのが好ましい。 In order to prevent the temple member from opening excessively beyond the assumed fully open state, it is preferable that the other wire end portion of the end piece member has a protruding portion that protrudes from between the top surface of the head portion of the shaft core member and the bearing surface of the head portion of the screw member, and that the wire end portion of the temple member and the protruding portion of the wire end portion of the end piece member contact and interfere with each other when the temple member is in the fully open state.

また前記眼鏡は、前記穴は、左右方向の内側を向くように前記軸芯部材の胴部の側周面に形成されており、前記胴部の側周面に形成された前記螺旋溝の向きと、前記頭部に形成された前記ネジ穴のネジ溝の向きとが互いに同じであるのが好ましい。
このようにすれば、胴部の側周面の穴にヨロイ部材の一方の線端部を左右方向の内側から差し込むようにできるので、テンプル部材をたたむ際における軸芯部材の回転を制限できる。一方で、胴部の側周面に形成された螺旋溝の向きと頭部に形成されたネジ穴のネジ溝の向きとが互いに同じになるようにすることで、テンプル部材を開く際に、ネジ部材に対して軸芯部材が緩む方向への回転を制限できる。
Further, in the spectacles, the hole is formed in the side peripheral surface of the body portion of the shaft core member so as to face inward in the left-right direction, and the direction of the spiral groove formed in the side peripheral surface of the body portion is preferably the same as the direction of the thread groove of the screw hole formed in the head.
With this configuration, one wire end of the connection member can be inserted into the hole in the side peripheral surface of the body from the inside in the left-right direction, so that the rotation of the shaft core member when folding the temple member can be restricted. On the other hand, by making the direction of the spiral grooves formed on the side peripheral surface of the body and the direction of the screw grooves of the screw holes formed in the head the same, it is possible to restrict the rotation of the shaft member in the direction in which the screw member loosens when the temple member is opened.

前記眼鏡の具体的構成としては、右側の前記ヒンジ構造と左側の前記ヒンジ構造は、前記軸芯部材に形成された前記螺旋溝が互いに逆向きであるのが好ましい。
このようにすれば、全開状態にした際に、右側と左側の両方のテンプル部材の線端部が、軸芯部材の頭部又はヨロイ部材の線端部に同じように接触するようにできるので、全開状態における右側と左側のテンプル部材を同程度の力で固定することができ、装着感をより向上できる。
As a specific configuration of the spectacles, it is preferable that the right hinge structure and the left hinge structure have the spiral grooves formed in the axial member opposite to each other.
In this way, the wire ends of both the right and left temple members can be brought into contact with the head of the shaft core member or the wire end of the endpiece member in the same way when the temple is fully opened, so that the right and left temple members can be fixed with approximately the same amount of force in the fully opened state, and the feeling of wearing can be further improved.

前記眼鏡は、前記軸芯部材の螺旋溝が、これに螺合する前記テンプル部材の線端部との嵌合公差が、好ましくは8μm以下、より好ましくは6μm以下、さらに好ましくは3μm以下、さらに好ましくは1μm以下となるように形成されているのが好ましい。また前記螺旋溝の表面に固体潤滑処理が施されているのがより好ましい。
このようにすれば、テンプル部材の線端部と螺旋溝との間におけるカジリの発生を抑えられるので、テンプル部材をスムーズに開閉できるとともに、テンプル部材の開閉に伴う螺旋溝の破損を防止することができる。
The eyeglasses are preferably formed so that the fitting tolerance between the spiral groove of the shaft core member and the wire end portion of the temple member screwed therewith is preferably 8 μm or less, more preferably 6 μm or less, even more preferably 3 μm or less, and even more preferably 1 μm or less. Further, it is more preferable that the surface of the spiral groove is subjected to a solid lubrication treatment.
In this way, galling between the wire ends of the temple members and the spiral grooves can be suppressed, so that the temple members can be smoothly opened and closed, and the spiral grooves can be prevented from being damaged when the temple members are opened and closed.

また前記眼鏡は、前記ヨロイ部材の他方の線端部が、前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間において、前記軸芯部材のネジ穴を取り囲む輪状を成すように形成されているのが好ましい。
このようにすれば、軸芯部材の頭部の頂面及びネジ部材の頭部の座面と、ヨロイ部材の線端部との接触面積を増やすことができ、しっかりと挟んで固定することができるようになる。
In the spectacles, it is preferable that the other wire end portion of the endpiece member is formed in a ring shape surrounding the screw hole of the shaft core member between the top surface of the head portion of the shaft core member and the bearing surface of the head portion of the screw member.
By doing so, it is possible to increase the contact area between the top surface of the head of the shaft core member, the bearing surface of the head of the screw member, and the wire end portion of the end piece member, so that they can be firmly sandwiched and fixed.

また本発明の効果を顕著に奏する態様としては、前記眼鏡がリムレスタイプのものであるのが好ましい。 Moreover, as a mode in which the effects of the present invention are exhibited remarkably, it is preferable that the spectacles are of a rimless type.

このように構成した本発明によれば、開閉を繰り返しても緩みにくい新規なヒンジ構造を備える眼鏡を提供することができる。 According to the present invention configured in this way, it is possible to provide spectacles having a novel hinge structure that does not easily loosen even after repeated opening and closing.

一実施形態の眼鏡の全体構成を示す斜視図。The perspective view which shows the whole structure of the spectacles of one Embodiment. 同実施形態の眼鏡の全体を上方から視た平面図。The top view which looked the whole spectacles of the same embodiment from upper direction. 同実施形態の眼鏡の全体を左方向ら視た平面図。The top view which looked the whole spectacles of the same embodiment from the left direction. 同実施形態の眼鏡の全体を後方から視た平面図。The top view which looked the whole spectacles of the same embodiment from back. 同実施形態のブリッジ部材の構成を示す斜視図。The perspective view which shows the structure of the bridge|bridging member of the same embodiment. 同実施形態のブリッジ部材近傍を上方から視た平面図。The top view which looked the bridge|bridging member vicinity of the same embodiment from upper direction. 同実施形態のブリッジ部材を左方向から視た平面図。The top view which looked the bridge|bridging member of the same embodiment from the left direction. 同実施形態の左側のテンプル部材のヒンジ構造近傍の構成を上方から視た平面図。The top view which looked at the structure of the hinge structure vicinity of the temple member of the left side of the same embodiment from upper direction. 同実施形態の左側のテンプル部材のヒンジ構造近傍の構成を左方向から視た平面図。The top view which looked at the structure of the hinge structure vicinity of the left temple member of the same embodiment from the left direction. 同実施形態の右側のヒンジ構造を左方向から視た示す平面図。The top view which looked the hinge structure of the right side of the same embodiment from the left direction, and shows it. 同実施形態の右側のヒンジ構造を分解して示す平面図。The top view which decompose|disassembles and shows the hinge structure of the right side of the same embodiment. 同実施形態のヒンジ構造の軸芯部材の構成を示す斜視図。The perspective view which shows the structure of the shaft core member of the hinge structure of the same embodiment. 同実施形態の右側のヒンジ構造の動作を説明する平面図。The top view explaining operation|movement of the hinge structure of the right side of the same embodiment.

<全体構成>
以下に、本発明に係る眼鏡100の一実施形態について、図面を参照して説明する。
<Overall composition>
An embodiment of spectacles 100 according to the present invention will be described below with reference to the drawings.

本実施形態の眼鏡100は、レンズ1の外周を支えるリムを有しない、所謂リムレスタイプ(ツーポイントタイプ)のものである。具体的にこの眼鏡100は、図1~図4に示すように、左右一対のレンズ1と、一対のレンズ1を連結するブリッジ部材2と、各レンズ1の外側端部に設けられた左右一対のヨロイ部材3と、各ヨロイ部材3から前後方向に延びて装着者の側頭部をホールドする一対のテンプル部材4と、各ヨロイ部材3と各テンプル部材4とを回動可能に接続する一対のヒンジ構造5とを有する。 The spectacles 100 of this embodiment are of a so-called rimless type (two-point type) that does not have a rim that supports the outer periphery of the lens 1 . Specifically, as shown in FIGS. 1 to 4, the spectacles 100 include a pair of left and right lenses 1, a bridge member 2 connecting the pair of lenses 1, a pair of left and right end pieces 3 provided at the outer end of each lens 1, a pair of temple members 4 extending in the front-rear direction from each end piece 3 to hold the temporal region of the wearer's head, and a pair of hinge structures 5 rotatably connecting the end piece members 3 and each temple member 4.

この眼鏡100は、ブリッジ部材2とヨロイ部材3とテンプル部材4が、いずれも金属製の線材からなるものである。具体的にはブリッジ部材2、ヨロイ部材3及びテンプル部材4の各々は、一本の線材を複数個所で曲げ加工することにより形成されたものである。ブリッジ部材2、ヨロイ部材3及びテンプル部材4の各々を構成する線材は、ここでは同じ金属材料からなるものであり、例えば純チタン又はチタン合金等からなるものが挙げられるがこれに限らない。なお、ブリッジ部材2、ヨロイ部材3及びテンプル部材4が互いに異なる金属材料から成る線材により構成されていてもよい。 In this spectacle 100, the bridge member 2, the end piece member 3, and the temple member 4 are all made of metal wire. Specifically, each of the bridge member 2, the end piece member 3, and the temple member 4 is formed by bending a single wire rod at a plurality of locations. The wires forming the bridge member 2, the end pieces 3, and the temple members 4 are made of the same metal material, for example, pure titanium or a titanium alloy, but not limited to this. The bridge member 2, the end pieces 3, and the temple members 4 may be made of wires made of different metal materials.

(1)レンズ1
本実施形態の眼鏡100のレンズ1は、種類及び形状は特に限定されず任意のものであってよい。レンズ1は例えば、焦点レンズや、遠近両用レンズ、中近レンズ又は近々レンズ等の累進レンズであってよく、球面レンズ、非球面レンズ又は両面非球面レンズ等であってもよい。またレンズ1の材質はプラスチックでもガラスでもよく、その表面に各種のコーティング加工(例えばUVカット、傷防止、反射防止等)が施されていてもよい。
(1) Lens 1
The type and shape of the lens 1 of the spectacles 100 of the present embodiment are not particularly limited and may be arbitrary. The lens 1 may be, for example, a focal lens, a progressive lens such as a bifocal lens, a medium-near lens, or a near-near lens, or may be a spherical lens, an aspherical lens, or a double-sided aspherical lens. The material of the lens 1 may be plastic or glass, and its surface may be subjected to various coating processes (for example, UV cut, anti-scratch, anti-reflection, etc.).

各レンズ1には、ブリッジ部材2及びヨロイ部材3を接続するための接続孔がその厚み方向に貫通して形成されている。具体的には、各レンズ1における内側(ブリッジ側)端部近傍にはブリッジ部材2を接続するためのブリッジ接続孔11が形成され、各レンズ1における外側(ヨロイ側)端部近傍にはヨロイ部材3を接続するためのヨロイ接続孔12が形成されている。 A connection hole for connecting the bridge member 2 and the endpiece member 3 is formed through each lens 1 in its thickness direction. Specifically, a bridge connection hole 11 for connecting the bridge member 2 is formed near the inner (bridge side) end of each lens 1, and an end piece connection hole 12 for connecting the endpiece member 3 is formed near the outer (endpiece side) end of each lens 1.

(2)ブリッジ部材2
ブリッジ部材2は、一本の線材から形成されてなるものであり、線材の長手方向に沿った複数箇所(ここでは約20か所)で曲げ加工を施して形成されたものである。このブリッジ部材2は、図5~図7に示すように、中央に設けられて左右のレンズ1間に架け渡されるブリッジ部21と、ブリッジ部21を各レンズ1に接続するためのレンズ接続部22と、鼻当て6(クリングス)を保持するための鼻当て保持部23とを有する。
(2) Bridge member 2
The bridge member 2 is formed from a single wire, and is formed by bending the wire at a plurality of locations (about 20 locations in this case) along the longitudinal direction of the wire. As shown in FIGS. 5 to 7, the bridge member 2 has a bridge portion 21 provided in the center and bridged between the left and right lenses 1, a lens connection portion 22 for connecting the bridge portion 21 to each lens 1, and a nose pad holding portion 23 for holding the nose pad 6 (clings).

ブリッジ部21は前方に向かって凸となるアーチ形状を成すアーチ部分21aをその中央に有している。このアーチ部分21aは、線材に対して長手方向に沿って略一定の間隔を空けて複数個所で曲げ加工を施すことにより形成された、左右対称形状をなすものである。このように、複数個所で曲げ加工を行いアーチ部分21aを形成することで、加工硬化によりブリッジ部21の強度を向上させることができる。ブリッジ部21の強度を向上させる観点から、アーチ部分21aにおける曲げ加工の間隔は短いほど好ましく、例えば2mm以下が好ましく、約1mm程度が好ましい。そして、線材の長手方向に沿ったアーチ部分21aの両端部は、曲げ加工を施すことにより、屈曲点21bを介して前方に向かって折れ曲がるように形成されている。アーチ部分21aの両端部をこのように折り曲げることで、ブリッジ部21の変形強度をより向上させることができる。 The bridge portion 21 has at its center an arch portion 21a forming an arch shape that protrudes forward. The arch portion 21a has a bilaterally symmetrical shape formed by bending the wire rod at a plurality of locations with substantially constant intervals along the longitudinal direction. By forming the arch portion 21a by bending at a plurality of locations in this manner, the strength of the bridge portion 21 can be improved by work hardening. From the viewpoint of improving the strength of the bridge portion 21, the shorter the bending interval in the arch portion 21a, the better. Both end portions of the arch portion 21a along the longitudinal direction of the wire are formed to be bent forward through a bending point 21b by performing a bending process. By bending both ends of the arch portion 21a in this way, the deformation strength of the bridge portion 21 can be further improved.

レンズ接続部22はブリッジ部21の両端部に形成されている。このレンズ接続部22は、前方に向かって突き出すヘアピン形状となるように線材を曲げ加工して形成したものである。レンズ接続部22における前方に突き出す先端部22aは、レンズ1に形成されたブリッジ接続孔11に差し込まれて保持されており、これによりブリッジ部材2と各レンズ1とが接続されている。なおブリッジ接続孔11に差し込まれたレンズ接続部22の先端部22aは、接着剤等を用いてレンズ1に接着させるようにしてもよい。 The lens connecting portions 22 are formed at both ends of the bridge portion 21 . The lens connecting portion 22 is formed by bending a wire so as to have a hairpin shape projecting forward. A front end portion 22a of the lens connection portion 22 protruding forward is inserted into and held in a bridge connection hole 11 formed in the lens 1, whereby the bridge member 2 and each lens 1 are connected. The tip 22a of the lens connection portion 22 inserted into the bridge connection hole 11 may be adhered to the lens 1 using an adhesive or the like.

鼻当て保持部23は、ブリッジ部材2における線材の長手方向に沿った両端部に形成されている。具体的にこの鼻当て保持部23は、線材の両端部に曲げ加工を施して形成した輪状を成すものであり、この輪状部分に鼻当て6が差し込まれて保持される。 The nose pad holding portions 23 are formed at both ends along the longitudinal direction of the wire of the bridge member 2 . Specifically, the nose pad holding portion 23 has a ring shape formed by bending both ends of a wire, and the nose pad 6 is inserted and held in this ring-shaped portion.

(3)ヨロイ部材3
ヨロイ部材3は、一本の線材から形成されてなるものであり、線材の長手方向に沿った複数箇所(ここでは約10か所)で曲げ加工を施して形成されたものである。ヨロイ部材3は、図8~図10に示すように、前方に向かって突き出すヘアピン形状となるように形成されたレンズ接続部31を有している。ブリッジ部材2と同様に、このヨロイ部材3は、レンズ接続部31における前方に突き出す先端部が、レンズ1に形成されたヨロイ接続孔12に差し込まれて保持されている。ヨロイ部材3を構成する線材の両端部(2つの線端部53,54)は、レンズ接続部31から後方に向かって延伸しており、ヒンジ構造5を介してテンプル部材4に接続されている。
(3) End piece 3
The end piece member 3 is formed from a single wire, and is formed by bending the wire at a plurality of locations (here, about 10 locations) along the longitudinal direction of the wire. As shown in FIGS. 8 to 10, the endpiece member 3 has a lens connecting portion 31 formed in a hairpin shape protruding forward. As with the bridge member 2 , the end piece 3 of the endpiece member 3 is held by inserting the front end portion of the lens connecting portion 31 protruding forward into the end piece connection hole 12 formed in the lens 1 . Both ends (two wire ends 53 and 54 ) of the wire constituting the end piece member 3 extend rearward from the lens connecting portion 31 and are connected to the temple member 4 via the hinge structure 5 .

(4)テンプル部材4
次に図2~図4、図8及び図9を参照してテンプル部材4の構成を説明する。テンプル部材4は、一本の線材から形成されてなるものであり、線材の長手方向に沿った複数箇所(ここでは約40か所)で曲げ加工を施すとともに、長手方向に沿ってローラ加工を部分的に施すことにより形成されたものである。テンプル部材4は、その基端部4aがヒンジ構造5を介してヨロイ部材3に接続されており、上下方向に直交する平面内においてヒンジ構造5を軸中心に回転して開閉するように構成されている。開いた状態においてテンプル部材4は、基端部4aから後方に向かって延伸し、その先端部4bが装着者の耳裏の側頭部に接触する形状を成している。以下、眼鏡100を開いた状態におけるテンプル部材4の形状を、基端側から先端側に向かって順に説明する。
(4) Temple member 4
Next, the structure of the temple member 4 will be described with reference to FIGS. 2 to 4, 8 and 9. FIG. The temple member 4 is formed from a single wire, and is formed by bending the wire at a plurality of locations (here, about 40 locations) along the longitudinal direction of the wire and partially applying roller processing along the longitudinal direction. The base end 4a of the temple member 4 is connected to the endpiece member 3 via a hinge structure 5, and is configured to open and close by rotating about the hinge structure 5 in a plane perpendicular to the vertical direction. When the temple member 4 is opened, the temple member 4 extends rearward from the base end portion 4a and has a shape in which the tip portion 4b comes into contact with the temporal region behind the ear of the wearer. Hereinafter, the shape of the temple member 4 when the spectacles 100 are opened will be described in order from the proximal side to the distal side.

ヒンジ構造5に接続するテンプル部材4の基端側線端部41は、上下方向から視て、左右方向の内向きにヒンジ構造5から飛び出した後、複数回折れ曲がって左右方向の外向きに延伸する略U字形状を成している。この線端部41は、ヒンジ構造5よりも外側まで延伸して、以下に説明する前方突出部42に接続するようにされている。 A proximal line end portion 41 of the temple member 4 connected to the hinge structure 5 has a substantially U shape extending outward in the lateral direction after protruding inward in the lateral direction from the hinge structure 5 when viewed from the vertical direction. This wire end portion 41 extends outside the hinge structure 5 and is connected to a forward projecting portion 42 described below.

テンプル部材4における基端側線端部41よりも先端側には、前方に向かって突き出すように折り曲げられた前方突出部42が形成されている。この前方突出部42は、左右方向から視てヘアピン形状を成すように線材を曲げ加工して形成されたものであり、前方に向かって延伸した後、折れ曲がって後方に向かって延伸する形状を成している。 A forward projecting portion 42 that is bent to project forward is formed on the distal end side of the base end side wire end portion 41 of the temple member 4 . The forward protruding part 42 is formed by bending a wire so as to form a hairpin shape when viewed from the left and right direction, and after extending forward, it is bent and extended rearward.

この前方突出部42はヒンジ構造5の近傍に形成されており、具体的には左右方向においてヒンジ構造5よりも外側に位置するように形成されている。またここでは、前方突出部42はヒンジ構造5よりも前方に突出しないように形成されており、前方突出部42の突出端42aが前後方向においてヒンジ構造5の軸中心と同じ位置になるように形成されている。 The forward projecting portion 42 is formed in the vicinity of the hinge structure 5, and specifically, is formed so as to be positioned outside the hinge structure 5 in the left-right direction. Further, here, the forward protruding portion 42 is formed so as not to protrude forward beyond the hinge structure 5, and the protruding end 42a of the forward protruding portion 42 is formed at the same position as the axis center of the hinge structure 5 in the front-rear direction.

そしてテンプル部材4における前方突出部42よりも先端側には、上下方向から視て左右方向に変位するように段状に屈曲した第1段曲げ部43と、左右方向から視て上下方向に変位するように段状に屈曲した第2段曲げ部44とが形成されている。 A first stepped bent portion 43 that is bent in a stepped manner so as to be displaced in the horizontal direction when viewed in the vertical direction and a second stepped bent portion 44 that is bent in a stepped manner so as to be displaced in the vertical direction when viewed in the horizontal direction are formed on the distal end side of the forward projecting portion 42 in the temple member 4.

第1段曲げ部43は、上下方向から視て、線材を複数回(ここでは2回)屈曲させる(段曲げ加工、Z曲げ加工ともいう))ことにより形成されている。この第1段曲げ部43には、テンプル部材4の基端側から先端側に向かって順に、第1屈曲点431と第2屈曲点432が設けられている。前方突出部42から後方に向かって延伸する線材は、第1屈曲点431において左右方向の外側に向かって(ここでは、後方斜め外向きに)屈曲した後、第2屈曲点432において後方に向かって屈曲する形状をなしている。この第1段曲げ部43において、線材は左右方向の外側にオフセットされるとも言える。またこの第1段曲げ部43は、左右方向においてヒンジ構造5よりも外側に形成されており、より具体的には第1屈曲点431と第2屈曲点432の両方がヒンジ構造5よりも外側に形成されている。 The first step-bent portion 43 is formed by bending a wire a plurality of times (here, twice) (also referred to as step-bending or Z-bending) as viewed from above. A first bend point 431 and a second bend point 432 are provided in this order from the base end side of the temple member 4 toward the tip end side of the temple member 4 . The wire rod extending rearward from the front projecting portion 42 bends outward in the left-right direction (here, obliquely outward in the rear direction) at the first bending point 431, and then bends rearward at the second bending point 432. It can also be said that the wire rod is offset outward in the left-right direction at the first stepped bent portion 43 . Also, the first step bent portion 43 is formed outside the hinge structure 5 in the left-right direction, and more specifically, both the first bending point 431 and the second bending point 432 are formed outside the hinge structure 5.

第2段曲げ部44は、左右方向から視て、線材を複数回(ここでは2回)屈曲させる(段曲げ加工、Z曲げ加工ともいう))ことにより形成されている。この第2段曲げ部44には、テンプル部材4の基端側から先端側に向かって順に、第3屈曲点441と第4屈曲点442が設けられている。前方突出部42から後方(具体的には後方斜め下向き)に向かって延伸する線材は、第3屈曲点441において上方に向かって(ここでは、後方斜め上向きに)屈曲した後、第4屈曲点442において後方に向かって屈曲する形状をなしている。この第2段曲げ部44において、線材は上方にオフセットされるとも言える。ここでは、第4屈曲点442は、上下方向においてヒンジ構造5を超えないようにその位置が設定されている。 The second step-bent portion 44 is formed by bending a wire a plurality of times (here, twice) (also referred to as step-bending or Z-bending) when viewed from the left-right direction. A third bending point 441 and a fourth bending point 442 are provided in this second stepped bent portion 44 in order from the base end side to the distal end side of the temple member 4 . The wire extending rearward (specifically, obliquely downward rearward) from the forward protruding portion 42 is bent upward (here, obliquely upward rearward) at a third bending point 441, and then bent rearward at a fourth bending point 442. It can also be said that the wire rod is offset upward at the second stepped bent portion 44 . Here, the position of the fourth bending point 442 is set so as not to exceed the hinge structure 5 in the vertical direction.

そしてここでは、第1段曲げ部43と第2段曲げ部44は、テンプル部材4を構成する線材における共通の線材部分に形成されており、第1屈曲点431と第2屈曲点432の間に、第3屈曲点441と第4屈曲点442が位置するように形成されている。つまり、テンプル部材4を構成する線材は、第1段曲げ部43において外側に変位している間に、第2段曲げ部44により上下方向に変位するように形成されている。 Here, the first stepped bending portion 43 and the second stepped bending portion 44 are formed in a common wire portion of the wire constituting the temple member 4, and are formed so that the third bending point 441 and the fourth bending point 442 are positioned between the first bending point 431 and the second bending point 432. That is, the wire material constituting the temple member 4 is formed so as to be vertically displaced by the second stepped bending portion 44 while being displaced outwardly at the first stepped bending portion 43 .

そしてテンプル部材4における第1段曲げ部43と第2段曲げ部44よりも先端側には、左右方向の内向きに湾曲する内向き湾曲部45が形成されている。この内向き湾曲部45は、線材をロール曲げ加工(送り曲げ加工)することにより、一定の曲率半径で内向きになだらかに湾曲して装着者の側頭部の形状にフィットするように形成されたものである。 An inward curved portion 45 that curves inward in the left-right direction is formed on the tip side of the first stepped bent portion 43 and the second stepped bent portion 44 in the temple member 4 . The inward curved portion 45 is formed by subjecting a wire to roll bending (feed bending) so as to gently curve inward with a constant radius of curvature to fit the shape of the wearer's temporal region.

そしてテンプル部材4における内向き湾曲部45よりも先端側には、装着者の耳裏の側頭部を左右から挟んで保持するためのホールド部46が形成されている。このホールド部46は、前後方向から視てテンプル部材4の先端が内側下方を向くように、曲げ加工により癖付けられている。 Further, on the tip side of the inward curved portion 45 of the temple member 4, a hold portion 46 is formed to sandwich and hold the wearer's temporal region behind the ears from the left and right. The holding portion 46 is formed by bending so that the tip of the temple member 4 faces downward when viewed from the front-rear direction.

具体的にこのホールド部46は、内向き湾曲部45の端から内向き下方向に向かって弧を描くように曲げられた曲線部461と、その後テンプル部材4の先端まで真っすぐ延伸する直線部462とを有する。この曲線部461は、線材に対して、長手方向に沿って複数個所で曲げ加工を施すことにより形成されている。ここでは、線材に対して、略一定の間隔(例えば0.5mm以上2mm以下であり、約1mmが好ましい)を空けて28か所で曲げ加工を施すことにより曲線部461が形成されている。 Specifically, the hold portion 46 has a curved portion 461 that is bent inwardly downward from the end of the inwardly curved portion 45 to draw an arc, and then a straight portion 462 that extends straight to the tip of the temple member 4. The curved portion 461 is formed by bending the wire at a plurality of locations along the longitudinal direction. Here, the curved portion 461 is formed by bending the wire rod at 28 points at substantially constant intervals (for example, 0.5 mm or more and 2 mm or less, preferably about 1 mm).

(5)ヒンジ構造5
ヒンジ構造5は、図10~図12に示すように、側周面51cに穴51h(線材係止穴51hともいう)が形成された胴部511と、該胴部511よりも径が大きく、軸方向に沿ったネジ穴51sがその頂面51aに形成された頭部512とを有する軸芯部材51と、軸芯部材51のネジ穴51sに螺合する胴部521と、該胴部521よりも径が大きい頭部522とを有するネジ部材52と、ヨロイ部材3が有する2つの線端部53,54と、テンプル部材4が有する1つの線端部55(基端側線端部41)とを備えて構成されている。そしてこのヒンジ構造5では、ヨロイ部材3の一方の線端部53が軸芯部材51の線材係止穴51hに差し込まれるとともに、他方の線端部54が軸芯部材51の頭部512の頂面51aとネジ部材52の頭部522の座面52aとの間に挟まれており、ネジ部材52を軸芯部材51に締結することにより当該2つの線端部53,54が固定されている。そしてテンプル部材4の線端部55は、軸芯部材51の胴部511の側周面51cにおいて線材係止穴51hよりも頭部512側(上側)に設定された領域(巻き付け領域51rともいう)に巻き付けられており、これにより、軸芯部材51を軸中心としてテンプル部材4を開閉できるようになっている。
(5) Hinge structure 5
10 to 12, the hinge structure 5 includes a shaft member 51 having a body portion 511 having a hole 51h (also referred to as a wire locking hole 51h) formed in a side peripheral surface 51c, a head portion 512 having a larger diameter than the body portion 511 and having a screw hole 51s along the axial direction formed on the top surface 51a thereof, a body portion 521 screwed into the screw hole 51s of the shaft core member 51, and the body portion 521. It comprises a screw member 52 having a head 522 having a diameter larger than that of the portion 521, two wire ends 53 and 54 possessed by the endpiece member 3, and one wire end 55 possessed by the temple member 4 (base end side wire end 41). In this hinge structure 5, one wire end portion 53 of the end piece member 3 is inserted into the wire locking hole 51h of the shaft core member 51, and the other wire end portion 54 is sandwiched between the top surface 51a of the head portion 512 of the shaft core member 51 and the seat surface 52a of the head portion 522 of the screw member 52, and the two wire ends 53 and 54 are fixed by fastening the screw member 52 to the shaft core member 51. The wire end portion 55 of the temple member 4 is wound around a region (also referred to as a winding region 51r) set on the head 512 side (upper side) of the wire locking hole 51h on the side peripheral surface 51c of the body portion 511 of the shaft core member 51, thereby allowing the temple member 4 to be opened and closed with the shaft core member 51 as the axis center.

線材係止穴51hは、胴部511の側周面51cにおいて、軸芯部材51の軸方向に直交する方向に沿って形成された止まり穴(非貫通穴)であり、ヨロイ部材3を構成する線材がガタつきなく嵌まり込む程度の穴径を有している。より具体的にこの線材係止穴51hは、左右方向の内側を向いて開口するように、軸芯部材51の胴部511に形成されている。これにより、線材係止穴51hにヨロイ部材3の一方の線端部53を左右方向の内側から差し込むようにしているので、テンプル部材4をたたむ際における軸芯部材51の回転を制限できるようになっている。 The wire engaging hole 51h is a blind hole (non-through hole) formed in the side peripheral surface 51c of the body portion 511 along a direction orthogonal to the axial direction of the shaft core member 51, and has a hole diameter to the extent that the wire constituting the end piece member 3 can be fitted without rattling. More specifically, the wire locking hole 51h is formed in the trunk portion 511 of the shaft core member 51 so as to open inward in the left-right direction. As a result, one wire end portion 53 of the connection member 3 is inserted into the wire locking hole 51h from the inside in the left-right direction, so that the rotation of the shaft core member 51 when folding the temple member 4 can be restricted.

またヨロイ部材3の他方の線端部54は、軸芯部材51の頂面51aとネジ部材52の座面52aとの間において、軸芯部材51のネジ穴51sを取り囲む輪状を成すように形成された輪状部分を有している。この輪状部分はその中心位置がネジ穴51sの中心位置と一致するようにして軸芯部材51の頂面51aとネジ部材52の座面52aとの間に挟んで固定されている。 The other wire end portion 54 of the end piece member 3 has a ring-shaped portion formed between the top surface 51a of the shaft core member 51 and the bearing surface 52a of the screw member 52 so as to form a ring shape surrounding the screw hole 51s of the shaft core member 51. This annular portion is sandwiched and fixed between the top surface 51a of the shaft core member 51 and the seat surface 52a of the screw member 52 so that its center position coincides with the center position of the screw hole 51s.

軸芯部材51の胴部511の巻き付け領域51rには、側周面51cを螺旋状に周回する螺旋溝51gが形成されている。テンプル部材4の線端部55は螺旋形状に形成されており、胴部511に形成された螺旋溝51gに螺合するように巻き付けられている。このためテンプル部材4を開閉すると、テンプル部材4の線端部55が軸芯部材51の螺旋溝51gに沿って回転することで、その軸方向に沿って上下に移動するようになっている。本実施形態の眼鏡100では、右側のヒンジ構造5と左側のヒンジ構造5は、軸芯部材51に形成した螺旋溝51gの向きが互いに逆向きになっており、左右のテンプル部材4を開閉させるとこれらは同じ方向に上下移動するようになっている。なおこの実施形態では軸芯部材51はその頭部512が上向きになるように設けられている。 A winding region 51r of the trunk portion 511 of the shaft core member 51 is formed with a spiral groove 51g that spirally surrounds the side peripheral surface 51c. A wire end portion 55 of the temple member 4 is formed in a spiral shape and is wound so as to be screwed into a spiral groove 51g formed in the body portion 511 . Therefore, when the temple member 4 is opened and closed, the wire end portion 55 of the temple member 4 rotates along the spiral groove 51g of the shaft core member 51, thereby moving up and down along the axial direction. In the spectacles 100 of the present embodiment, the right hinge structure 5 and the left hinge structure 5 have spiral grooves 51g formed in the axial member 51 that are opposite to each other, and when the left and right temple members 4 are opened and closed, they move up and down in the same direction. In this embodiment, the shaft member 51 is provided so that its head portion 512 faces upward.

またこの軸芯部材51では、胴部511の側周面51cに形成された螺旋溝51gの向きと、頭部512に形成されたネジ穴51sのネジ溝の向きとが互いに同じになるようにしており、テンプル部材4を開く際に、ネジ部材52に対して軸芯部材51が緩む方向への回転を制限できるようになっている。 Further, in this shaft core member 51, the direction of the spiral groove 51g formed in the side peripheral surface 51c of the body portion 511 and the direction of the screw groove 51s formed in the head portion 512 are made to be the same, so that when the temple member 4 is opened, the rotation of the shaft core member 51 in the loosening direction with respect to the screw member 52 can be restricted.

さらに軸芯部材51の螺旋溝51gは、これに螺合するテンプル部材4の線端部55との嵌合公差が、好ましくは8μm以下、より好ましくは6μm以下、さらに好ましくは3μm以下、さらに好ましくは1μm以下となるように形成されており、また螺旋溝51gの表面には固体潤滑処理が施されている。 Furthermore, the spiral groove 51g of the shaft core member 51 is formed so that the fitting tolerance with the wire end portion 55 of the temple member 4 screwed thereto is preferably 8 μm or less, more preferably 6 μm or less, still more preferably 3 μm or less, further preferably 1 μm or less, and the surface of the spiral groove 51 g is subjected to solid lubrication treatment.

そしてこのヒンジ構造5では、テンプル部材4を回動させて畳んだ状態から開いていくと、テンプル部材4の線端部55が上方向に移動していき、最終的に軸芯部材51の頭部512の座面51bに接触することによってテンプル部材4の回動動作が制限されて全開状態となるようにしている。つまりテンプル部材4の線端部55は、全開状態でのみ軸芯部材51の頭部512の座面51bに接触するようになっている。また螺旋形状に形成されたテンプル部材4の線端部55は、畳んだ状態から全開状態までの間は、軸芯部材51の胴部511の側周面51cにのみ接触しており、他の要素(具体的には、ヨロイ部材3の線端部53,54、軸芯部材51の頭部512)には接触しないように構成されている。 In this hinge structure 5, when the temple member 4 is rotated and opened from the folded state, the wire end portion 55 of the temple member 4 moves upward, and finally comes into contact with the seat surface 51b of the head portion 512 of the shaft core member 51, thereby restricting the rotational movement of the temple member 4 and bringing it into a fully opened state. That is, the wire end portion 55 of the temple member 4 contacts the bearing surface 51b of the head portion 512 of the shaft core member 51 only in the fully open state. Further, the wire end portion 55 of the temple member 4 formed in a spiral shape contacts only the side peripheral surface 51c of the trunk portion 511 of the shaft core member 51 from the folded state to the fully opened state, and is configured so as not to contact other elements (specifically, the wire ends 53 and 54 of the joint member 3 and the head portion 512 of the shaft core member 51).

またこのヒンジ構造5は、ヨロイ部材3の他方の線端部54が、軸芯部材51の頂面51aとネジ部材52の座面52aとの間から外部に突出する突出部分54aを有しており、図13に示すように、全開状態において、テンプル部材4の線端部55とヨロイ部材3の線端部54の突出部分54aとが接触して干渉するように構成されている。 Also, in this hinge structure 5, the other wire end portion 54 of the end piece member 3 has a protruding portion 54a that protrudes outward from between the top surface 51a of the shaft core member 51 and the seat surface 52a of the screw member 52. As shown in FIG.

<本実施形態の効果>
このように構成した本実施形態の眼鏡100によれば、ネジ部材52はヨロイ部材3の線端部を軸芯部材51に固定するためだけに用いられており、軸芯部材51の胴部511に巻き付けられたテンプル部材4の線端部55にはネジ部材52の締め付け応力が一切かからないように構成しているので、テンプル部材4の開閉を繰り返すことによるヒンジ構造5における緩みを防止することができる。
<Effects of this embodiment>
According to the spectacles 100 of this embodiment configured in this manner, the screw member 52 is used only to fix the wire end portion of the endpiece member 3 to the shaft core member 51, and the wire end portion 55 of the temple member 4 wound around the body portion 511 of the shaft core member 51 is configured so that no tightening stress of the screw member 52 is applied.

またテンプル部材4の線端部55を螺旋溝51gに螺合させるようにすることで、軸芯部材51とテンプル部材4との間に適度な摩擦を設け、テンプル部材4がパタパタと勝手に開閉しないようにできる。しかもテンプル部材4を全開状態にすると、軸芯部材51の頭部512と螺旋溝51gとにより、テンプル部材4の先端部4bに対して上下から締結力を加えることができ、テンプル部材4を全開状態でしっかりと固定することができるようになる。 Further, by screwing the wire end part 55 of the temple member 4 into the spiral groove 51g, moderate friction is provided between the shaft core member 51 and the temple member 4, and the temple member 4 can be prevented from opening and closing arbitrarily. Moreover, when the temple member 4 is fully opened, the head 512 of the shaft core member 51 and the spiral groove 51g can apply fastening force to the distal end portion 4b of the temple member 4 from above and below, so that the temple member 4 can be firmly fixed in the fully opened state.

さらには、胴部511の側周面51cの穴にヨロイ部材3の一方の線端部53を左右方向の内側から差し込むようにできるので、テンプル部材4をたたむ際における軸芯部材51の回転を制限できる。一方で、胴部511の側周面51cに形成された螺旋溝51gの向きと頭部512に形成されたネジ穴51sのネジ溝の向きとが互いに同じになるようにすることで、テンプル部材4を開く際に、ネジ部材52に対して軸芯部材51が緩む方向への回転を制限できる。 Furthermore, since one wire end portion 53 of the end piece member 3 can be inserted into the hole in the side peripheral surface 51c of the body portion 511 from the inside in the left-right direction, the rotation of the shaft core member 51 when folding the temple member 4 can be restricted. On the other hand, by making the direction of the spiral groove 51g formed in the side peripheral surface 51c of the body portion 511 and the direction of the thread groove of the screw hole 51s formed in the head portion 512 the same, it is possible to restrict the rotation of the shaft core member 51 in the loosening direction with respect to the screw member 52 when the temple member 4 is opened.

<その他の実施形態>
なお、本発明は前記実施形態に限られるものではない。
<Other embodiments>
It should be noted that the present invention is not limited to the above embodiments.

例えば前記実施形態のヒンジ構造5は、テンプル部材4を畳んだ状態から開いていくと、その線端部55が軸芯部材51の頭部512の座面51bに接触してその回動動作が制限されるようにしていたが、これに限らない。他の実施形態では、テンプル部材4を開いていくと、その線端部55が下方向に移動し、線材係止穴51hに差し込まれているヨロイ部材3の一方の線端部53に接触してその回動動作が制限されるようにしてもよい。 For example, in the hinge structure 5 of the above-described embodiment, when the temple member 4 is opened from the folded state, the wire end 55 comes into contact with the bearing surface 51b of the head 512 of the shaft core member 51, thereby restricting the rotational movement thereof. However, this is not restrictive. In another embodiment, when the temple member 4 is opened, the wire end portion 55 thereof may move downward and come into contact with one wire end portion 53 of the end piece member 3 inserted into the wire locking hole 51h, thereby restricting its rotational movement.

また他の実施形態のヒンジ構造5では、軸芯部材51はその頭部512が下向きになるように設けられていてもよい。また他の実施形態のヒンジ構造5では、軸芯部材51の胴部511には螺旋溝51gが形成されていなくてもよい。 Further, in the hinge structure 5 of another embodiment, the shaft core member 51 may be provided so that its head portion 512 faces downward. In addition, in the hinge structure 5 of another embodiment, the body portion 511 of the shaft core member 51 may not have the spiral groove 51g.

また他の実施形態のヒンジ構造5では、ヨロイ部材3の他方の線端部54が突出部分54aを有しておらず、全開状態において、テンプル部材4の線端部55とヨロイ部材3の線端部54とが干渉しないように構成してもよい。 In the hinge structure 5 of another embodiment, the other wire end portion 54 of the end piece member 3 does not have the protruding portion 54a, so that the wire end portion 55 of the temple member 4 and the wire end portion 54 of the end piece member 3 do not interfere with each other in the fully open state.

また前記実施形態の眼鏡100は所謂リムレスタイプのものであったがこれに限らない。他の実施形態の眼鏡100はリムを有するタイプのものであってもよい。また前記実施形態の眼鏡100は、装着者の視力を矯正することを目的とするものに限らず、紫外線から眼を守ることを目的とするサングラスであってもよい。 Also, the spectacles 100 of the above embodiment are of the so-called rimless type, but the spectacles are not limited to this. The spectacles 100 of other embodiments may be of a type having a rim. Further, the spectacles 100 of the above embodiment are not limited to those aimed at correcting the vision of the wearer, and may be sunglasses aimed at protecting the eyes from ultraviolet rays.

その他、本発明は前記実施形態に限られず、その趣旨を逸脱しない範囲で種々の変形が可能であるのは言うまでもない。 In addition, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications are possible without departing from the spirit of the present invention.

100・・・眼鏡
1 ・・・レンズ
3 ・・・ヨロイ部材
4 ・・・テンプル部材
5 ・・・ヒンジ構造
51 ・・・軸芯部材
511・・・胴部
512・・・頭部
51h・・・穴(線材係止穴)
51s・・・ネジ穴
52 ・・・ネジ部材
521・・・胴部
522・・・頭部
53 ・・・一方の線端部(ヨロイ)
54 ・・・他方の線端部(ヨロイ)
55 ・・・線端部(テンプル)
REFERENCE SIGNS LIST 100...Glasses 1...Lens 3...Endpiece member 4...Temple member 5...Hinge structure 51...Axial member 511...Body part 512...Head part 51h...Hole (wire locking hole)
51s...Screw hole 52...Screw member 521...Body part 522...Head part 53...One wire end (joint)
54 ・・・ the other wire end (endpiece)
55 ... wire end (temple)

Claims (10)

左右一対のレンズと、
前記各レンズの外側端部に接続された金属線材から成るヨロイ部材と、
ヒンジ構造を介して前記ヨロイ部材に回動可能に接続された金属線材から成るテンプル部材とを備え、
前記ヒンジ構造が、
側周面に穴が形成された胴部と、該胴部よりも径が大きく、軸方向に沿ったネジ穴がその頂面に形成された頭部とを有する軸芯部材と、
前記軸芯部材のネジ穴に螺合する胴部と、該胴部よりも径が大きい頭部とを有するネジ部材と、
前記ヨロイ部材が有する2つの線端部と、
前記テンプル部材が有する1つの線端部とを備え、
前記ヨロイ部材の一方の線端部が前記軸芯部材の穴に差し込まれるとともに、他方の線端部が前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間に挟まれ、前記ネジ部材を前記軸芯部材に締結することにより当該2つの線端部が固定されており、
前記テンプル部材の線端部が、前記軸芯部材の胴部の側周面における前記穴よりも頭部側の領域に巻き付けられている眼鏡。
A pair of left and right lenses,
an end piece member made of a metal wire connected to the outer end of each lens;
a temple member made of a metal wire rotatably connected to the endpiece member via a hinge structure,
The hinge structure is
an axial core member having a body portion with a hole formed in a side peripheral surface thereof, and a head portion having a larger diameter than the body portion and having a screw hole along the axial direction formed on the top surface thereof;
a screw member having a body portion to be screwed into the screw hole of the shaft member and a head portion having a larger diameter than the body portion;
two wire end portions of the end piece member;
and one wire end portion of the temple member,
One wire end portion of the end piece member is inserted into the hole of the shaft member, and the other wire end portion is sandwiched between the top surface of the head portion of the shaft core member and the bearing surface of the head portion of the screw member, and the two wire ends are fixed by fastening the screw member to the shaft core member,
A pair of spectacles, wherein the wire ends of the temple members are wound around a region of the side peripheral surface of the body portion of the shaft core member that is closer to the head than the hole.
前記軸芯部材の胴部の側周面に螺旋溝が形成されており、前記テンプル部材の線端部が当該螺旋溝に螺合するように巻き付けられている請求項1に記載の眼鏡。 2. The pair of spectacles according to claim 1, wherein a spiral groove is formed on the side peripheral surface of the trunk portion of the shaft core member, and the wire ends of the temple member are wound so as to be screwed into the spiral groove. 前記テンプル部材を回動させて畳んだ状態から開いていくと、前記テンプル部材の線端部が、前記軸芯部材の螺旋溝に沿って回転することでその軸方向に沿って移動し、前記軸芯部材の頭部又は前記穴に差し込まれた前記ヨロイ部材の線端部に接触することにより前記テンプル部材の回動動作が制限されて全開状態となる請求項2に記載の眼鏡。 3. The pair of spectacles according to claim 2, wherein when the temple members are rotated and opened from a folded state, the wire ends of the temple members rotate along the spiral grooves of the shaft core member to move in the axial direction, and contact the head portion of the shaft core member or the wire ends of the endpiece members inserted into the holes, thereby restricting the rotational movement of the temple members and opening them fully. 前記ヨロイ部材の他方の線端部が、前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間から突出する突出部分を有しており、
前記テンプル部材の全開状態において、前記テンプル部材の線端部と前記ヨロイ部材の線端部の突出部分とが接触して干渉するように構成されている請求項3に記載の眼鏡。
the other wire end portion of the end piece member has a protruding portion protruding from between the top surface of the head portion of the shaft core member and the bearing surface of the head portion of the screw member;
4. The spectacles according to claim 3, wherein when the temple members are fully open, the wire ends of the temple members and the protruding portions of the wire ends of the end pieces contact and interfere with each other.
前記穴は、左右方向の内側を向くように前記軸芯部材の胴部の側周面に形成されており、
前記胴部の側周面に形成された前記螺旋溝の向きと、前記頭部に形成された前記ネジ穴のネジ溝の向きとが互いに同じである請求項2~4のいずれか一項に記載の眼鏡。
The hole is formed in the side peripheral surface of the body portion of the shaft core member so as to face inward in the left-right direction,
The spectacles according to any one of claims 2 to 4, wherein the direction of the spiral groove formed on the side peripheral surface of the body and the direction of the screw groove of the screw hole formed on the head are the same.
右側の前記ヒンジ構造と左側の前記ヒンジ構造とは、前記軸芯部材に形成された前記螺旋溝が互いに逆向きである請求項2~5のいずれか一項に記載の眼鏡。 The spectacles according to any one of claims 2 to 5, wherein the hinge structure on the right side and the hinge structure on the left side have the spiral grooves formed in the shaft core members in opposite directions. 前記螺旋溝の表面に固体潤滑処理が施されている請求項2~6のいずれか一項に記載の眼鏡。 The spectacles according to any one of claims 2 to 6, wherein the surfaces of the spiral grooves are subjected to solid lubrication treatment. 前記ヨロイ部材の他方の線端部が、前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間において、前記軸芯部材のネジ穴を取り囲む輪状を成すように形成されている請求項1~7のいずれか一項に記載の眼鏡。 The spectacles according to any one of claims 1 to 7, wherein the other wire end portion of the end piece member is formed in a ring shape surrounding the screw hole of the shaft core member between the top surface of the head portion of the shaft member and the bearing surface of the head portion of the screw member. リムレスタイプのものである請求項1~8のいずれか一項に記載の眼鏡。 The spectacles according to any one of claims 1 to 8, which are of a rimless type. 左右一対のレンズと、前記各レンズの外側端部に接続された金属線材から成るヨロイ部材と、当該ヨロイ部材に接続された金属線材から成るテンプル部材とを備える眼鏡において、前記ヨロイ部材と前記テンプル部材とを回動可能に接続するヒンジ構造であって、
側周面に穴が形成された胴部と、該胴部よりも径が大きく、軸方向に沿ったネジ穴がその頂面に形成された頭部とを有する軸芯部材と、
前記軸芯部材のネジ穴に螺合する胴部と、該胴部よりも径が大きい頭部とを有するネジ部材と、
前記ヨロイ部材が有する2つの線端部と、
前記テンプル部材が有する1つの線端部とを備え、
前記ヨロイ部材の一方の線端部が前記軸芯部材の穴に差し込まれるとともに、他方の線端部が前記軸芯部材の頭部の頂面と前記ネジ部材の頭部の座面との間に挟まれ、前記ネジ部材を前記軸芯部材に締結することにより当該2つの線端部が固定されており、
前記テンプル部材の線端部が、前記軸芯部材の胴部の側周面における前記穴よりも頭部側の領域に巻き付けられているヒンジ構造。
Spectacles comprising a pair of left and right lenses, an end piece member made of a metal wire connected to the outer end of each lens, and a temple member made of a metal wire connected to the end piece member, wherein the hinge structure rotatably connects the end piece member and the temple member,
an axial core member having a body portion with a hole formed in a side peripheral surface thereof, and a head portion having a larger diameter than the body portion and having a screw hole along the axial direction formed on the top surface thereof;
a screw member having a body portion to be screwed into the screw hole of the shaft member and a head portion having a larger diameter than the body portion;
two wire end portions of the end piece member;
and one wire end portion of the temple member,
One wire end portion of the end piece member is inserted into the hole of the shaft member, and the other wire end portion is sandwiched between the top surface of the head portion of the shaft core member and the bearing surface of the head portion of the screw member, and the two wire ends are fixed by fastening the screw member to the shaft core member,
A hinge structure in which a wire end portion of the temple member is wound around a region of the side peripheral surface of the trunk portion of the shaft member that is closer to the head than the hole.
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