JP6721918B2 - Method for manufacturing eyeglass parts - Google Patents
Method for manufacturing eyeglass parts Download PDFInfo
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- JP6721918B2 JP6721918B2 JP2016079510A JP2016079510A JP6721918B2 JP 6721918 B2 JP6721918 B2 JP 6721918B2 JP 2016079510 A JP2016079510 A JP 2016079510A JP 2016079510 A JP2016079510 A JP 2016079510A JP 6721918 B2 JP6721918 B2 JP 6721918B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 4
- 206010044625 Trichorrhexis Diseases 0.000 claims 2
- 239000011521 glass Substances 0.000 claims 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 19
- 238000005096 rolling process Methods 0.000 description 17
- 238000005452 bending Methods 0.000 description 6
- 238000005219 brazing Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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- Eyeglasses (AREA)
- Wire Processing (AREA)
Description
本発明は、リム、テンプル、ブリッジ、鎧、ブローバーなどの眼鏡用部品の製造方法に関し、特に複数本の金属線を撚り合わせてなる金属撚り線を利用した眼鏡部品の製造方法に関する。 The present invention relates to a method for manufacturing eyeglass parts such as rims, temples, bridges, armor and blow bars, and more particularly to a method for manufacturing eyeglass parts using a metal strand formed by twisting a plurality of metal wires.
金属撚り線はワイヤーや電線として一般的に利用されており、所望の断面形状を得るために金属撚り線の周囲から押圧力を付与して前記金属撚り線を塑性変形させることも古くから一般的に行われている（例えば特許文献１，２参照）。
また、金属の撚り線をテンプルやリムなどの眼鏡用部品として用いることも従来から行われており、特許文献３〜７においても種々の提案がなされている。
例えば特許文献３には、超弾性金属の金属撚り線をブリッジやブローバー、テンプル等に用いることで、超弾性金属が元来有する曲げ弾性の他に捩りにも高い弾性強度を有する眼鏡フレームが提案されている。
The metal stranded wire is generally used as a wire or an electric wire, and in order to obtain a desired cross-sectional shape, it is also common to apply a pressing force from the periphery of the metal stranded wire to plastically deform the metal stranded wire. (See, for example, Patent Documents 1 and 2).
Further, it has been conventionally performed to use a metal twisted wire as an eyeglass component such as a temple and a rim, and various proposals have been made in Patent Documents 3 to 7.
For example, Patent Document 3 proposes a spectacle frame having a high elastic strength in torsion as well as bending elasticity originally possessed by a superelastic metal by using a twisted wire of a superelastic metal for a bridge, a blow bar, a temple, or the like. Has been done.
特許文献４には、潰した金属撚り線をリムとして用いることで優れた意匠効果を有する眼鏡フレームが提案されている。
特許文献５には、複数本の金属線材を用いて紐線を構成し、この紐線を複数本撚って作った紐線を素材として圧縮成形したりすることで、スウェージング加工した適度なバネ特性と撓みを与えるとともに、加工度に応じた立体的で網目状にデザイン化した眼鏡フレームのツルが提案されている。
Patent Document 4 proposes a spectacle frame having an excellent design effect by using a crushed metal twisted wire as a rim.
In Patent Document 5, a braid is formed by using a plurality of metal wires, and a braid made by twisting a plurality of the braids is used as a raw material for compression molding. There has been proposed a spectacle frame vine that has a spring characteristic and a flexure and is designed in a three-dimensional mesh shape according to the degree of processing.
しかし、これら文献に記載の撚り線は、曲げ方向の弾性には優れるものの伸び方向の弾性に乏しく、従って、曲げ弾性を利用したものか撚り線のデザイン性を活かしたものが主流である。 However, the twisted wires described in these documents are excellent in elasticity in the bending direction but poor in elasticity in the elongation direction, and therefore, the one using bending elasticity or the one utilizing the design of the twisted wire is mainly used.
本発明は、金属の撚り線に軸線方向の弾性を付与し、この弾性を利用することで特に眼鏡用のリムとしてより利用価値の高い眼鏡用リムの製造方法の提供を目的とする。 It is an object of the present invention to provide a method for manufacturing a spectacle rim which is highly useful especially as a rim for spectacles by imparting axial elasticity to a metal strand and utilizing this elasticity.
上記課題を解決するために請求項１に記載の発明は、３本以上の金属線を撚ってなる撚り線から形成される眼鏡用部品の製造方法であって、基準撚りピッチより小さい撚りピッチの前記撚り線を準備し、前記撚り線の周囲から押圧力を付与し、複数の前記金属線の断面形状を塑性変形させつつ前記撚り線の径方向に離間させて前記複数の金属線間に隙間を生じさせることで、軸線方向に弾性的に伸縮するように前記撚り線を塑性変形させ、前記撚り線の前記軸線方向の弾性率を、前記押圧力の付与による前記撚り線の塑性変形率の大小によって調整し、前記眼鏡用部品に応じて前記撚り線を所定長さに切断し加工する眼鏡用部品の製造方法である。 In order to solve the above-mentioned problems, the invention according to claim 1 is a method of manufacturing an eyeglass component formed from a twisted wire formed by twisting three or more metal wires, wherein the twist pitch is smaller than a reference twist pitch. Of the stranded wire, applying a pressing force from the periphery of the stranded wire, while plastically deforming the cross-sectional shape of the plurality of the metal wires and spaced apart in the radial direction of the stranded wire between the plurality of metal wires By creating a gap, the stranded wire is plastically deformed so as to elastically expand and contract in the axial direction, and the elastic modulus of the stranded wire in the axial direction is determined by the plastic deformation ratio of the stranded wire due to the application of the pressing force. Is adjusted according to the size of the spectacles, and the stranded wire is cut into a predetermined length in accordance with the spectacles parts, and processed.
請求項２に記載するように、前記押圧力を、撚り線の塑性変形率が予め設定された値になるまで、複数回に分けて付与するようにしてもよい。 As described in claim 2, the pressing force may be applied in plural times until the plastic deformation rate of the stranded wire reaches a preset value.
撚り線の撚りピッチ（以下、「ピッチ」と記載することがある）は撚り合わせる金属線の本数によって相違するが、通常の撚り線のピッチ（基準撚りピッチ）よりも小さくする。例えば３本撚りの場合は撚り線の直径の５〜８倍程度が基準撚りピッチであるが、これよりも小さいピッチとするとよい。３本撚りの場合には、請求項３に記載するように前記撚り線のピッチを前記撚り線の直径の３〜４倍程度とするのが良く、さらに好ましくは３．５倍程度とするとよい。 The twist pitch of the twisted wire (hereinafter, also referred to as “pitch”) varies depending on the number of metal wires to be twisted, but it is smaller than the pitch of the normal twisted wire (reference twist pitch). For example, in the case of three strands, the standard twist pitch is about 5 to 8 times the diameter of the twisted wire, but a pitch smaller than this is preferable. In the case of three strands, as described in claim 3 , the pitch of the twisted wire is preferably about 3 to 4 times the diameter of the twisted wire, and more preferably about 3.5 times. ..
なお、前記撚り線の前記軸線方向の弾性率は、金属線の材質や線径、撚り合わせる金属線の数、撚りのピッチなどによっても調整することもできる。 The elastic modulus of the axial direction of the strands, the material and wire diameter of the metal wire, twisting match the number of metal lines, may also be adjusted, such as by the pitch of the twist.
請求項４に記載するように、前記撚り線を所定長さに切断した後に環状にし、その両端を連結して眼鏡用のリムとしてもよい。この場合、請求項５に記載するように、前記撚り線の長さをレンズの周囲長より短く形成し、前記リムの両端に割り智を取り付けてネジによって前記割り智を締結するようにしてもよい。また、前記撚り線を所定長さに切断した後に前記撚り線の一端又は途中部位にスウェージング加工を施してもよい。 As described in claim 4 , the stranded wire may be cut into a predetermined length and then formed into an annular shape, and both ends thereof may be connected to form a rim for spectacles. In this case, as described in claim 5 , the length of the twisted wire may be formed to be shorter than the peripheral length of the lens, and split knives may be attached to both ends of the rim to fasten the split knives with screws. Good. Further, after cutting the stranded wire into a predetermined length, one end or an intermediate portion of the stranded wire may be swaged.
金属の撚り線に周囲から押圧力を付与して潰しつつ、軸線方向には弾性的に伸縮するように変形させることで、例えば撚り線を環状にして形成されるリムは、レンズの周方向にリムを伸縮させることが可能になり、智を設けなくてもリムにレンズを簡単に嵌め込むことが可能になる。また、レンズを嵌め込んだ後にはリムが収縮してレンズ周縁に密着するので、レンズがリムによって強固に保持される。なお、従来と同様に智を設けてもよく、特に請求項８のようにすれば、割り智を締め付けるネジの締結作用と弾性的に伸縮する撚り線から形成されたリムとの相乗作用により、レンズをリムに強固に保持させることができる。 By pressing the metal strands from the surroundings and crushing them, they are deformed so as to elastically expand and contract in the axial direction. It is possible to extend and contract the rim, and it is possible to easily fit the lens into the rim without providing wisdom. Further, after the lens is fitted, the rim contracts and comes into close contact with the peripheral edge of the lens, so that the lens is firmly held by the rim. It should be noted that the wisdom may be provided in the same manner as in the conventional case, and in particular, according to claim 8, due to the synergistic action of the fastening action of the screw for fastening the split wisdom and the rim formed by the elastically expanding and contracting stranded wire, The lens can be firmly held on the rim.
また、押圧力を複数回に分けて段階的に付与することで、撚り線を塑性変形させる際に撚り線をばらけにくくすることができる。
このように、本発明の製造方法で得られた眼鏡用部品は、曲げ方向だけでなく軸線方向にも弾性を有するので、レンズを保持するリムだけでなく、弾性が必要とされるテンプル、ブリッジ、鎧、ブローバーなど他の眼鏡用部品にも好適に利用することが可能である。
Further, by applying the pressing force in a plurality of steps in a stepwise manner, it is possible to prevent the twisted wire from being loosened when the twisted wire is plastically deformed.
Thus, since the eyeglass component obtained by the manufacturing method of the present invention has elasticity not only in the bending direction but also in the axial direction, not only the rim for holding the lens, but also the temples and bridges that require elasticity. It can also be suitably used for other eyeglass parts such as armor and blow bars.
以下、本発明の好適な実施形態を、図面を参照しつつ詳細に説明する。
図１は、本発明の眼鏡用部品の製造方法の一実施形態にかかり、（ａ）は複数本の金属線を撚り合わせてなる撚り線の一例を示す図、（ｂ）は（ａ）の撚り線のＩ−Ｉ方向断面図である。
撚り線１を構成する金属線２としては、チタン合金線やステンレス線などを用いることができるが、以下の実施形態では、チタン合金線２として説明する。また、撚り合わせるチタン合金線２の数は２本、３本又は４本以上とすることができるが、以下の説明では３本として説明する。
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 relates to an embodiment of a method for manufacturing a component for eyeglasses of the present invention, (a) is a diagram showing an example of a twisted wire formed by twisting a plurality of metal wires, and (b) is a view of (a). It is an II sectional view of a twisted wire.
A titanium alloy wire, a stainless wire, or the like can be used as the metal wire 2 that constitutes the stranded wire 1, but in the following embodiments, the titanium alloy wire 2 will be described. Further, the number of the titanium alloy wires 2 to be twisted can be two, three, or four or more, but in the following description, it will be described as three.
まず、３本のチタン合金線２を撚って撚り線１を形成する。図１のように、３本のチタン合金線２を撚り合わせて撚り線１を形成する場合、チタン合金線２は線径ｄ＝０．５〜１．５ｍｍものを用いることができる。また、このような線径ｄのチタン合金線２から形成される撚り線１の外径は概ねＤ＝１．０〜３．３ｍｍの範囲内となる。
一般にこの種の金属撚り線のピッチｐは、撚り線１の外径Ｄの５倍〜８倍程度であるが、この実施形態では、３〜４倍程度としてある。ピッチｐが４倍を越えると、圧延処理を行う際のチタン合金線２のばらけ抑制効果が小さく、ピッチｐを３倍より小さくすると、チタン合金線２が切れやすくなる。
撚りの形態はＳ撚り又はＺ撚りのいずれであってもよいが、リムのように左右一対の部品では、デザイン上の理由から一方をＳ撚り、他方をＺ撚りとするのが好ましい。
First, three titanium alloy wires 2 are twisted to form a stranded wire 1. As shown in FIG. 1, when the three titanium alloy wires 2 are twisted together to form the twisted wire 1, the titanium alloy wire 2 having a wire diameter d of 0.5 to 1.5 mm can be used. The outer diameter of the stranded wire 1 formed from the titanium alloy wire 2 having such a wire diameter d is generally within the range of D=1.0 to 3.3 mm.
Generally, the pitch p of this type of twisted metal wire is about 5 to 8 times the outer diameter D of the twisted wire 1, but in this embodiment it is about 3 to 4 times. If the pitch p exceeds 4 times, the effect of suppressing the dispersion of the titanium alloy wire 2 during the rolling process is small, and if the pitch p is smaller than 3 times, the titanium alloy wire 2 is easily broken.
The twisting form may be either S twisting or Z twisting, but in a pair of left and right parts such as a rim, it is preferable that one is S twisting and the other is Z twisting for design reasons.
上記の撚り線１の外周面の二方向又は三以上の方向から押圧力を付与して、この撚り線１を潰す。
このとき、チタン線２同士が互いに密着するように押圧するのではなく、撚り線１を構成するチタン合金線２の各々の断面形状を塑性変形させつつ、チタン合金線２の各々が撚り線１の径方向に膨らむように塑性変形させ、撚り線１のチタン合金線２間に隙間が形成される。
The stranded wire 1 is crushed by applying a pressing force from two or three or more directions on the outer peripheral surface of the stranded wire 1.
At this time, the titanium alloy wires 2 are not pressed so as to be in close contact with each other, but each of the titanium alloy wires 2 is plastically deformed while the titanium alloy wires 2 constituting the stranded wire 1 are plastically deformed. Plastic deformation is performed so as to swell in the radial direction, and a gap is formed between the titanium alloy wires 2 of the stranded wire 1.
図２は、直径０．８ｍｍのチタン合金線２を３本撚って形成される直径１．７６ｍｍの撚り線１を平押し圧延し後の撚り線１の写真である。図２（ａ）（ｂ）（ｃ）において左は撚り線の拡大写真、右は撚り線の断面写真である。
（ａ）の例では、直径１．７６ｍｍの撚り線１を圧延して高さＨ＝１．１ｍｍ、幅Ｓ＝２．２５ｍｍとしたもので、圧延率（元の撚り線１の直径Ｄに対する圧延後の撚り線１の高さＨの比（（Ｄ−Ｈ）／Ｄ））は３８％である。
（ｂ）の例では、直径１．７６ｍｍの撚り線１を圧延して高さＨ＝０．８ｍｍ、幅Ｓ＝２．６５ｍｍとしたもので、圧延率（元の撚り線１の直径Ｄに対する圧延後の撚り線１の高さＨの比（（Ｄ−Ｈ）／Ｄ））は５５％である。
（ｃ）の例では、直径１．７６ｍｍの撚り線１を圧延して高さＨ＝０．５ｍｍ、幅Ｓ＝３．２５ｍｍとしたもので、圧延率（元の撚り線１の直径Ｄに対する圧延後の撚り線１の高さＨの比（（Ｄ−Ｈ）／Ｄ））は７１％である。
FIG. 2 is a photograph of the stranded wire 1 after flat pressing and rolling a stranded wire 1 having a diameter of 1.76 mm formed by twisting three titanium alloy wires 2 having a diameter of 0.8 mm. 2A, 2B, and 2C, the left is an enlarged photograph of the stranded wire, and the right is a cross-sectional photograph of the stranded wire.
In the example of (a), the stranded wire 1 having a diameter of 1.76 mm is rolled to have a height H=1.1 mm and a width S=2.25 mm, and the rolling ratio (for the diameter D of the original stranded wire 1 is The ratio of the height H of the stranded wire 1 after rolling ((D−H)/D) is 38%.
In the example of (b), the stranded wire 1 having a diameter of 1.76 mm is rolled to have a height H=0.8 mm and a width S=2.65 mm, and the rolling ratio (for the diameter D of the original stranded wire 1 is The ratio of the height H of the stranded wire 1 after rolling ((D−H)/D)) is 55%.
In the example of (c), the stranded wire 1 having a diameter of 1.76 mm is rolled to have a height H=0.5 mm and a width S=3.25 mm. The ratio of the height H of the stranded wire 1 after rolling ((D−H)/D) is 71%.
伸縮量は、チタン合金線２同士の隙間が大きい（ｂ）の例のものが（ａ）の例のものより大きく、（ｃ）は圧延率が大きすぎて却って伸縮量が小さくなった。このように圧延後の撚り線１の軸線Ｃ方向の弾性率は、圧延量（すなわち塑性変形率）に密接に関連している。
なお、大きな押圧力によって一回で圧延を行うのではなく、一回ごとの押圧力を小さくして複数回に分けて圧延を行うことで、初期の圧延による撚り線１の塑性変形がガイドとなって、以後の圧延において撚り線１をばらけにくくすることができるという利点がある。また、図２に示すようにチタン合金線２間の隙間は、リムやテンプルその他の眼鏡用部品においてデザインとしても機能する。
The amount of expansion and contraction was larger in the example of (b) where the gap between the titanium alloy wires 2 was larger than that of the example of (a), and in (c), the rolling ratio was too large and the amount of expansion and contraction was rather small. Thus, the elastic modulus of the stranded wire 1 after rolling in the direction of the axis C is closely related to the rolling amount (that is, the plastic deformation ratio).
Note that, instead of rolling with a large pressing force at one time, the pressing force for each rolling is reduced and the rolling is performed in a plurality of times, so that the plastic deformation of the stranded wire 1 due to the initial rolling serves as a guide. Therefore, there is an advantage that the stranded wire 1 can be made hard to be separated in the subsequent rolling. Further, as shown in FIG. 2, the gap between the titanium alloy wires 2 also functions as a design in rims, temples and other eyeglass parts.
図３は、上記手順で形成されることで軸線Ｃ方向に弾性を有する撚り線１を、レンズを保持するリムに適用した場合の一例を示す図である。
図３（ａ）に示すように、上記の手順で得た撚り線１を所定の長さに切断し、環状にしてその両端を鎧５で連結してリム４を形成する。鎧５も所定長さに切断した撚り線１で形成してもよい。鎧５は蝋付けでリム４に取り付けることができるが、撚り線１のチタン合金線２間には隙間が形成されているので、この隙間に溶けた蝋が浸透し、鎧５をリム４に強固に取り付けることができる。
FIG. 3 is a diagram showing an example of a case where the stranded wire 1 having elasticity in the axis C direction formed by the above procedure is applied to a rim holding a lens.
As shown in FIG. 3(a), the stranded wire 1 obtained by the above procedure is cut into a predetermined length, made into an annular shape, and both ends thereof are connected by armor 5 to form a rim 4. The armor 5 may also be formed by the stranded wire 1 cut into a predetermined length. The armor 5 can be attached to the rim 4 by brazing, but since a gap is formed between the titanium alloy wire 2 of the twisted wire 1, the melted wax penetrates into this gap and the armor 5 is attached to the rim 4. Can be firmly attached.
切断後の撚り線１の長さは、リム４に嵌め込もうとするレンズ７（図３（ｃ）参照）のＶ溝７ａの全周長よりも若干小さめとする。また、撚り線１を軸線Ｃ方向に最大に伸ばしたときに、前記全周長よりも大きくなるようにする。このような長さとすることで、リム４の弾性によって、レンズ７をリム４に嵌め込んだときにレンズ７の形状に従ってリム４がレンズ７の周縁に密着し、周縁から均等な密着力でレンズ７を強固かつ安定的に保持する。 The length of the stranded wire 1 after cutting is made slightly smaller than the entire circumferential length of the V groove 7a of the lens 7 (see FIG. 3C) to be fitted into the rim 4. Further, when the stranded wire 1 is stretched to the maximum in the direction of the axis C, the stranded wire 1 is made larger than the entire circumference. With such a length, due to the elasticity of the rim 4, the rim 4 adheres to the peripheral edge of the lens 7 according to the shape of the lens 7 when the lens 7 is fitted into the rim 4, and the lens has a uniform adhesive force from the peripheral edge. Holds 7 firmly and stably.
左右のレンズ７，７に合わせて左右のリム４，４を形成した後、図３（ｂ）に示すように左右のリム４，４をブリッジ６で連結する。このブリッジ６も撚り線１で形成することができ、ブリッジ６とリム４，４も鎧５と同様に蝋付けによって取り付けることができる。 After forming the left and right rims 4 and 4 in accordance with the left and right lenses 7 and 7, the left and right rims 4 and 4 are connected by a bridge 6 as shown in FIG. This bridge 6 can also be formed from the stranded wire 1, and the bridge 6 and the rims 4, 4 can also be attached by brazing like the armor 5.
次いで、図３（ｃ）に示すように、左右のリム４，４に嵌め込むレンズ７，７を準備する。レンズ７，７を左右のリム４，４に嵌め込むには、リム４，４を周方向に引っ張って撚り線１を軸線Ｃ方向に伸ばせばよい。レンズ７，７のＶ溝７ａ，７ａにリム４，４を引っ掛けて引張力を解除すれば、撚り線１が縮んでＶ溝７ａ，７ａにリム４，４が係合し、リム４，４によってレンズ７，７が保持される。 Next, as shown in FIG. 3C, the lenses 7, 7 to be fitted into the left and right rims 4, 4 are prepared. In order to fit the lenses 7 and 7 into the left and right rims 4 and 4, the rims 4 and 4 may be pulled in the circumferential direction to extend the stranded wire 1 in the axis C direction. When the rims 4 and 4 are hooked on the V-grooves 7a and 7a of the lenses 7 and 7 to release the tensile force, the stranded wire 1 is contracted and the rims 4 and 4 are engaged with the V-grooves 7a and 7a. The lenses 7, 7 are held by.
鎧５の代わりに従来のような割り智を用いることも可能である。
図４に示すように、環状にした撚り線１の両端に割り智８をそれぞれ取り付け、ネジ９で割り智８を締め付けることができるようにする。このとき、撚り線１の長さをレンズ７の周囲長より少し短くしておき、レンズ７を嵌め込んだときに上下の割り治の間に少し隙間ができるようにする。この状態でネジ９を締め込んでいけば、ネジ９の締結作用によってリム４がレンズ７の周縁に沿って伸び、リム４の持つ弾性とネジ９の締結作用とによってレンズ７がリム４に強固に保持される。
It is also possible to use the conventional split wisdom instead of the armor 5.
As shown in FIG. 4, the split wires 8 are attached to both ends of the stranded wire 1 in an annular shape, and the split wires 8 can be tightened with screws 9. At this time, the length of the stranded wire 1 is set to be slightly shorter than the peripheral length of the lens 7 so that when the lens 7 is fitted, there is a slight gap between the upper and lower splits. If the screw 9 is tightened in this state, the rim 4 extends along the peripheral edge of the lens 7 by the fastening action of the screw 9, and the elasticity of the rim 4 and the fastening action of the screw 9 secure the lens 7 to the rim 4. Held in.
本発明の好適な実施形態について説明したが、本発明は上記の説明に限定されない。
例えば、上記の説明では金属線としてチタン合金線やステンレス線を例に挙げたが、眼鏡用のリムとして用いることができるのであれば、これら以外の金属線であってもよい。
Although the preferred embodiment of the present invention has been described, the present invention is not limited to the above description.
For example, in the above description, a titanium alloy wire or a stainless wire has been taken as an example of the metal wire, but a metal wire other than these may be used as long as it can be used as a rim for spectacles.
また、本発明の撚り線は、曲げ方向にも弾性を有するためテンプルなど曲げ方向の弾性を要求される他の眼鏡用部品にも適用が可能である。この場合、例えばテンプルと智又は鎧との連結が問題になるが、撚り線から形成されたテンプルの先端をスウェージング加工することで蝋付けが容易となる。金属撚り線で形成されたテンプル等へのスウェージング加工については、例えば特開平１１−１４９４７号公報（特許文献５）等で公知である。 Further, since the twisted wire of the present invention has elasticity also in the bending direction, it can be applied to other spectacle parts such as temples which require elasticity in the bending direction. In this case, for example, the connection between the temple and the wisdom or armor becomes a problem, but brazing can be facilitated by swaging the tip of the temple formed from the stranded wire. The swaging process for a temple or the like formed of a metal strand is known, for example, from Japanese Patent Application Laid-Open No. 11-14947 (Patent Document 5).
さらに、本発明の撚り線のように軸線方向に弾性的に伸縮する撚り線は、眼鏡用部品に限らずスマートフォンのような携帯電子機器やその他の機器・器具の周縁に嵌め込んで飾りとしたり前記機器・器具を保持したりするのに、好適に利用することができる。
また、上記の説明では圧延によって押圧力を付与するものとしたが、撚り線がばらけるなどの不都合を生じさせずに、撚り線の軸線方向に弾性的な伸縮を付与できるのであれば、圧延に限らずプレスなど他の手段で押圧力を付与してもよい。
Furthermore, a twisted wire that elastically expands and contracts in the axial direction like the twisted wire of the present invention is not limited to eyeglass parts, but can be fitted to the periphery of a portable electronic device such as a smartphone or other device/appliance for decoration. It can be suitably used for holding the device/appliance.
Further, in the above description, the pressing force is applied by rolling, but if it is possible to impart elastic expansion and contraction in the axial direction of the twisted wire without causing inconvenience such as twisting of the twisted wire, rolling However, the pressing force may be applied by other means such as a press.
１ 撚り線
２ チタン合金線（金属線）
４ リム
５ 鎧
６ ブリッジ
７ レンズ
７ａ Ｖ溝
８ 智（割り智）
９ ネジ
Ｃ 軸線
1 Stranded wire 2 Titanium alloy wire (metal wire)
4 Rim 5 Armor 6 Bridge 7 Lens 7a V groove 8 Satoshi
9 screw C axis
Claims (5)
基準撚りピッチより小さい撚りピッチの前記撚り線を準備し、
前記撚り線の周囲から押圧力を付与し、複数の前記金属線の断面形状を塑性変形させつつ前記撚り線の径方向に離間させて前記複数の金属線間に隙間を生じさせることで、軸線方向に弾性的に伸縮するように前記撚り線を塑性変形させ、
前記撚り線の前記軸線方向の弾性率を、前記押圧力の付与による前記撚り線の塑性変形率の大小によって調整し、
前記眼鏡用部品に応じて前記撚り線を所定長さに切断し加工すること、
を特徴とする眼鏡用部品の製造方法。 A method for manufacturing an eyeglass component, which is formed from a twisted wire formed by twisting three or more metal wires,
Prepare the twisted wire with a twist pitch smaller than the standard twist pitch,
A pressing force is applied from the periphery of the stranded wire, and the cross-sectional shape of the plurality of metal wires is plastically deformed to be spaced apart in the radial direction of the stranded wire to form a gap between the plurality of metal wires, whereby the axis line Plastically deform the stranded wire so as to elastically expand and contract in the direction,
The elastic modulus in the axial direction of the twisted wire is adjusted by the magnitude of the plastic deformation rate of the twisted wire due to the application of the pressing force,
Cutting the stranded wire into a predetermined length according to the spectacle parts, and processing the stranded wire,
A method for manufacturing an eyeglass component, comprising:
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| JP2016079510A JP6721918B2 (en) | 2016-04-12 | 2016-04-12 | Method for manufacturing eyeglass parts |
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| JP6656672B2 (en) * | 2017-08-03 | 2020-03-04 | 株式会社フォーナインズ | Temple for spectacles and method for producing the same |
| JP2019086603A (en) * | 2017-11-06 | 2019-06-06 | 有限会社小林眼鏡工業所 | Metal twisted wire and manufacturing method of the same |
| JP2019191325A (en) * | 2018-04-24 | 2019-10-31 | 株式会社リム精工 | Spectacle rim and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5148278Y2 (en) * | 1972-02-28 | 1976-11-20 | ||
| JPS4997632A (en) * | 1973-01-18 | 1974-09-14 | ||
| JPS6031573B2 (en) * | 1976-09-29 | 1985-07-23 | 田中貴金属工業株式会社 | Manufacturing method of decorative metal twisted wire |
| JPS5584240A (en) * | 1978-12-15 | 1980-06-25 | Vnii Mechizunoi Puromishiyuren | Preparation of stranded wireelike wire product and product manufactured by said preparation |
| JPS5695214A (en) * | 1979-12-28 | 1981-08-01 | Seiko Epson Corp | Spectacle frame |
| JPS59113945A (en) * | 1982-12-20 | 1984-06-30 | Furukawa Electric Co Ltd:The | Manufacture of stranded wire |
| JPS6268121U (en) * | 1985-10-16 | 1987-04-28 | ||
| JP2607717Y2 (en) * | 1992-12-25 | 2002-07-08 | 株式会社パイオラックス | Metal eyeglass frames |
| JP2607107Y2 (en) * | 1993-10-28 | 2001-04-16 | 福井めがね工業株式会社 | Composite winding structure of eyeglass temple |
| JPH09258142A (en) * | 1996-03-18 | 1997-10-03 | Fukui Koki Kk | Metallic spectacle frame parts |
| JPH10295017A (en) * | 1997-04-16 | 1998-11-04 | Hitachi Cable Ltd | Manufacture of tightened slack electrical wire |
| US5801806A (en) * | 1997-05-05 | 1998-09-01 | Dichiara; Carmine S. | Eyeglass frames with resilient bridge |
| JPH1114947A (en) * | 1997-06-20 | 1999-01-22 | Shisei Gankyo Kk | Temples of metallic spectacle frame |
| JP2000310754A (en) * | 1999-04-26 | 2000-11-07 | Murai:Kk | Component member of spectacle frame as well as bridge, temple and spectacle frame having the same |
| JP2017191134A (en) * | 2016-04-11 | 2017-10-19 | セイコーオプティカルプロダクツ株式会社 | Spectacles frame |
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