JPH01152418A - Production of spectacles - Google Patents
Production of spectaclesInfo
- Publication number
- JPH01152418A JPH01152418A JP31178187A JP31178187A JPH01152418A JP H01152418 A JPH01152418 A JP H01152418A JP 31178187 A JP31178187 A JP 31178187A JP 31178187 A JP31178187 A JP 31178187A JP H01152418 A JPH01152418 A JP H01152418A
- Authority
- JP
- Japan
- Prior art keywords
- rim
- bridge
- electrode
- silver
- joint part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000003466 welding Methods 0.000 claims abstract description 28
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052709 silver Inorganic materials 0.000 claims abstract description 21
- 239000004332 silver Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 30
- 238000005304 joining Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000005219 brazing Methods 0.000 abstract description 23
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 abstract description 10
- 238000002845 discoloration Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 18
- 239000000463 material Substances 0.000 description 14
- 229910001316 Ag alloy Inorganic materials 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、眼鏡の製造方法であって、眼鏡フレーム部
品、例えばリムとブリッジとを抵抗溶接する場合、にお
いで、溶接母材（リム及びブリッジ）の表面に、接触抵
抗の高いことによる変色、さらに圧痕が生じるのを防止
し得る眼鏡の製造方法に関する。Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a method for manufacturing eyeglasses, and when resistance welding eyeglass frame parts such as a rim and a bridge, the welding base material (rim) is detected by odor. The present invention relates to a method of manufacturing eyeglasses that can prevent discoloration and impressions from occurring on the surfaces of lenses (and bridges) due to high contact resistance.
（ロ）従来の技術 第３図は、眼鏡フレームを示す斜視図である。(b) Conventional technology FIG. 3 is a perspective view showing the eyeglass frame.
ＩＩＮ鏡フレームは、公知のように例えばテンプル６１
、ブローチ６２、蝶番６３、リム６４及びブリッジ６５
等の各種部品から構成されている。The IIN mirror frame has, for example, a temple 61 as is well known.
, brooch 62 , hinge 63 , rim 64 and bridge 65
It is composed of various parts such as.
これらΦ各種部品を接着し眼鏡フレームを組立てるには
、眼鏡レンズ６を保持するリム６４とテンプル６１を装
着するためのブローチ６２、或いはリム６４とこれらの
間に橋架されるブリッジ６５を接着する。In order to assemble a spectacle frame by gluing these Φ various parts, a rim 64 for holding a spectacle lens 6 and a broach 62 for attaching a temple 61, or a rim 64 and a bridge 65 between them are bonded.
従来、この接着処理には溶接方法が採用されている。第
２図は、従来の溶接方法、例えばブリッジ６５とりみ６
４との接着処理状態を示す要部断面図である。Conventionally, a welding method has been adopted for this bonding process. FIG. 2 shows a conventional welding method, for example, bridge 65 and recess 6.
FIG. 4 is a sectional view of a main part showing a state of adhesion processing with No. 4;
両端部にリム６４を接合するための溝部（嵌合用段部）
６７を形成したブリッジ６５を、下電極部６８のブリン
ジ嵌合用窪み部６９へ位置決めした後、このリム６４が
ブリッジ６５の前記溝部６７に位置決めされる。次いで
、上電極部７０を下降させリム６４の所定位置を押圧す
る。この結果、ブリッジ６５とリム６４とは上・下電極
部６８．７０により挟持される。ここで、前記ブリッジ
６５、リム６４に対し所定の圧力で押圧しながら、上・
下電極部６８．７０間に電流を流す。つまり、電流がブ
リッジ６５とリム６４との接合部位に流れる。これによ
り、この接合部位に電流が集中して流れ、接合部分が集
中的に加熱される。この状態において、この加熱部に、
例えば１板状のチタニウムろう材７１を接触させ、ろう
材７１を溶融してブリッジ６５とリム６４の接合部位を
確実に固着する。Grooves (fitting steps) for joining the rim 64 at both ends
After the bridge 65 with the rim 67 formed thereon is positioned in the bring-fitting recess 69 of the lower electrode portion 68, the rim 64 is positioned in the groove 67 of the bridge 65. Next, the upper electrode part 70 is lowered to press a predetermined position on the rim 64. As a result, the bridge 65 and the rim 64 are sandwiched between the upper and lower electrode parts 68 and 70. Here, while pressing the bridge 65 and rim 64 with a predetermined pressure,
A current is passed between the lower electrode parts 68 and 70. In other words, current flows through the joint between the bridge 65 and the rim 64. As a result, current flows in a concentrated manner to this joint portion, and the joint portion is heated intensively. In this state, in this heating section,
For example, a plate-shaped titanium brazing material 71 is brought into contact with the brazing material 71 to melt the brazing material 71 and securely fix the joint portion between the bridge 65 and the rim 64.
（ハ）発明が解決しようとする問題点
上記、従来の溶接方法では、上・下電極部にてリムとブ
リッジとの接合部位を挟圧し、この接合部位に電流を流
すと共に、接触抵抗による加熱中にろう材を溶融させ、
一体に接着する方式である。(c) Problems to be Solved by the Invention In the conventional welding method described above, the joint between the rim and the bridge is pinched by the upper and lower electrodes, current is passed through this joint, and heating is caused by contact resistance. Melt the brazing filler metal inside,
This is a method of gluing them together.
このため、−工程でリムとブリッジとを接着し得る利点
がある反面、一体に接着したリムとブリッジ、つまり眼
鏡フレームの仕上がり形態が不適な場合、例えば接合部
位が所定より位置ずれしたまま固着処理が実行された場
合には、この接合部分の修正が不可能である。従って、
このような場合、従来は不良品として廃棄せざるを得す
、製品歩留りが悪い等の不利があった。For this reason, although there is an advantage in that the rim and bridge can be bonded in the - process, if the finished shape of the rim and bridge that are bonded together, that is, the finished form of the eyeglass frame, is unsuitable, for example, the bonding part may be left out of position when the bonding process is performed. If this is done, modification of this joint is not possible. Therefore,
In such cases, conventionally there have been disadvantages such as the product having to be discarded as a defective product and the product yield being poor.
そこで、本願出願人は、リムとブリッジとの接着状態が
適切でない場合に、この接着を容易に取り外せ、接着状
態を修正し得る眼鏡の製造方法を別に開発した。この製
造方法は、リムとブリッジとの接合部位を上・下電極で
圧接し、接合部位に電流を流し、抵抗溶接する仮付は工
程と、この仮付は工程を終了した後、仮付は部にろう材
を供給し、ろう材を溶融させて仮付は部を固着する固着
工程とから成る。この製造方法によれば、ろう材を使用
しない仮付は工程により、リムとブリッジとの仮接着が
実行される。従って、この仮付は段階において、リムと
ブリッジとの接着体裁、っまり眼鏡フレームとしての外
観体裁の適不適が目視により判定でき、仮に不適の場合
、この仮付けは容易に取り外すことが出来るため、仮付
けの修正が可能である。従って、従来のように不良品と
して廃棄する無駄が解消される。Therefore, the applicant of the present invention has separately developed a method for manufacturing eyeglasses that can easily remove the adhesion and correct the adhesion when the adhesion between the rim and the bridge is not appropriate. In this manufacturing method, the joint between the rim and the bridge is pressure-welded using upper and lower electrodes, current is passed through the joint, and resistance welding is performed. Temporary attachment consists of a fixing step of supplying a brazing material to the parts and melting the brazing material to fix the parts. According to this manufacturing method, temporary bonding between the rim and the bridge is performed in a temporary bonding process that does not use a brazing material. Therefore, during this temporary attachment stage, it is possible to visually determine whether the adhesion between the rim and the bridge, or the appearance as an eyeglass frame, is suitable, and if it is inappropriate, this temporary attachment can be easily removed. , correction of tacking is possible. Therefore, the conventional waste of discarding the product as a defective product is eliminated.
ところで、眼鏡の溶接処理において使用される電極は、
クロム銅資材による電極である。このクロム銅の電極を
使用して、上記仮付け（抵抗溶接）処理を実行する時は
、□リム及びブリッジの接着表面部に、接触抵抗の高い
場合に溶接電流が流れることにより変色が生じ、また、
圧痕を生じさせる不利のあることが判明した。眼鏡フレ
ーム部品（リム及びブリッジ）は、通常チタン、チタン
合金等の資材で形成されており、これらの金属資材は固
有抵抗が高い。また、クロム銅電極は、電気抵抗が比較
的高い。このため、溶接母材（リム及びブリッジ）間の
接触抵抗による発熱以外に電極、及び母材間の発熱が大
きくなり、リムとブリッジとの接合部位表面に、焼けに
よる変色が生じる許かりでなく、電極を接合部位に圧接
する機械的圧力による圧痕が発生し、製品価値を低下さ
せる等の不利のあることが判明した。By the way, the electrodes used in the welding process of glasses are
The electrode is made of chromium copper material. When performing the above-mentioned tacking (resistance welding) process using this chromium copper electrode, □If the contact resistance is high, discoloration may occur due to the flow of welding current to the bonding surfaces of the rim and bridge. Also,
It has been found to have the disadvantage of creating indentations. Eyeglass frame parts (rims and bridges) are usually made of materials such as titanium and titanium alloys, and these metal materials have high specific resistance. Additionally, chromium copper electrodes have relatively high electrical resistance. For this reason, in addition to the heat generated by the contact resistance between the welding base materials (rim and bridge), heat generation between the electrode and the base metal becomes large, and discoloration due to burning occurs on the surface of the joint between the rim and the bridge. It has been found that there are disadvantages such as the occurrence of impressions due to the mechanical pressure of pressing the electrode against the bonding site, which reduces the product value.
この発明は、リムとブリッジとの接合部位に変色、圧痕
の生じない抵抗溶接を実行し得る眼鏡の製造方法を提供
することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing eyeglasses that can perform resistance welding that does not cause discoloration or indentation at the joint portion between the rim and the bridge.
（ニ）問題点を解決するための手段及び作用この目的を
達成させるために、この発明の眼鏡の製造方法では、眼
鏡レンズを保持するためのリムに対応させてブリッジを
位置決めし、このブリッジの溝部に前記リムの一部を当
接させ、このブリッジとリムとの接合部位に電極を圧接
して電流を所定時間通電して抵抗溶接する眼鏡の製造方
法であって、前記電極は、上記接合部位に対応する位置
に電気抵抗の小さい部材を配備し、この部材にて抵抗溶
接を実行するようにしている。(d) Means and operation for solving the problem In order to achieve this object, in the method for manufacturing eyeglasses of the present invention, a bridge is positioned in correspondence with a rim for holding an eyeglass lens, and the bridge is A method of manufacturing eyeglasses in which a part of the rim is brought into contact with the groove, an electrode is pressure-contacted to the joint portion of the bridge and the rim, and a current is applied for a predetermined period of time to perform resistance welding. A member with low electrical resistance is arranged at a position corresponding to the part, and resistance welding is performed using this member.
このような眼鏡の製造方法では、リムとブリッジとの接
合部位は、例えば銅の棒軸の先端に銀（或いは銀合金）
より成る短軸を一体に取付けた電極にて、抵抗溶接が実
行される。銀（銀合金）は、クロム銅に比し、電気抵抗
の小さいことが知られている。例えば、クロム銅の電気
抵抗は１３μΩ／ ｃｒｎであり、銀の電気抵抗は１．
５０μΩ／ｃｍである。従って、この銀（銀合金）にて
形成された先端短軸の電極部にて、リム及びブリッジの
接合部位を抵抗溶接する時、接合部位と電極間の発熱を
下げることが出来る。つまり、接触抵抗が小さくなるた
め、リムとブリッジの接合部位の表面に、従来のような
焼は変色、圧痕が解消される。このため、抵抗溶接によ
る製品価値の低下は発生しない。そして、通常は、この
抵抗溶接が終了した時点で、仮付は状態の通、不適を目
視で判定した後、適正な仮付は状態のものについて、ろ
う付は固着処理を実行する。In such a method of manufacturing glasses, the joining part between the rim and the bridge is, for example, made of silver (or silver alloy) at the tip of a copper rod shaft.
Resistance welding is carried out using an electrode with integrally attached short shafts consisting of: Silver (silver alloy) is known to have lower electrical resistance than chromium copper. For example, the electrical resistance of chromium copper is 13 μΩ/crn, and the electrical resistance of silver is 1.
It is 50μΩ/cm. Therefore, when resistance welding the joint portion of the rim and bridge using the electrode portion of the tip short shaft formed of silver (silver alloy), it is possible to reduce the heat generation between the joint portion and the electrode. In other words, since the contact resistance is reduced, the discoloration and impressions caused by conventional firing on the surface of the joint between the rim and the bridge are eliminated. Therefore, no reduction in product value occurs due to resistance welding. Then, normally, when this resistance welding is completed, after visually determining whether the tack welding is acceptable or not, the brazing fixing process is performed for those in the proper tack welding condition.
（ホ）実施例
第１図（Ａ）及び第１図（Ｂ）は、この発明に係る眼鏡
の製造方法の具体的な一実施例を示す説明図である。実
施例では、リム２とブリッジ１との接合状況を例示して
いる。(E) Embodiment FIGS. 1(A) and 1(B) are explanatory diagrams showing a specific embodiment of the method for manufacturing eyeglasses according to the present invention. In the embodiment, the connection situation between the rim 2 and the bridge 1 is illustrated.
眼鏡フレームの製造方法は、リム２とブリッジ１との接
合部位の仮付は処理工程と、仮付は処理工程を終了した
仮付は部位に対し、ろう付は処理を行い固着する固着処
理工程とから成る。The manufacturing method of eyeglass frames includes a treatment process in which the joint portion of the rim 2 and the bridge 1 is temporarily attached, a fixing process in which the temporary attachment is performed on the part after the treatment process has been completed, and a fixing process in which brazing is performed and fixed. It consists of
第１図（Ａ）は、第１工程、つまりリム２とブリッジ１
との接合部位の仮付は処理工程を示している。Figure 1 (A) shows the first step, rim 2 and bridge 1.
The tacking of the joining area with the metal plate indicates a processing step.
例えばチタン或いはチタン合金から成るブリッジ１には
、両端部にリム２の適所を嵌合する溝部（嵌合曜段部）
１１が予め形成しである。この溝部１１は、例えばバイ
ト（図示せず）によりリム２の弯曲曲率に対応して切削
してあり、相互に緊密に嵌合接面するように設定されて
いる。このブリッジ１は、台板状に形成した下電極３の
上面に形成されたブリッジ嵌着用窪み部３１に嵌合固定
する。そして、例えばチタン或いはチタン合金にて形成
されたリム２の適所を、上記ブリッジ１の溝部１１に位
置合わせし接合させる。この状態において、前記下電極
３に対応して昇降自在に、上方へ対向配置される上電極
４を下降させ、画電極３．４間にて接合部位を挟圧する
。上電極４は、クロム銅の棒軸４１の先端部に、電気抵
抗の小さい銀（或いは銀合金）にて形成された短軸４２
を一体に接着して構成されており、また下電極３は合板
自体をクロム銅で形成し、且つ面内中央部、つまりリム
嵌着用窪み部３１に対応する部分に、電気抵抗の小さい
銀（銀合金）部材３２を埋設して構成している。このよ
うな、上・下電極３．４（上下電極３．４の各根部分・
通電部分４２．３２）にて、接合部位が挟圧される。そ
して、上電極４（銀短軸４１）側から電流を流すことで
、接合部位に電流が集中して流れ、接合部位が抵抗溶接
される。つまり、接合部位がろう材の介入なしに仮付け
される。この抵抗溶接は、外力のかからない状態におい
て、仮付けが保持される程度の軽い接着である。電気抵
抗の小さい電極３．４（銀短軸４２及び銀埋設部分３２
）により、溶接母材（リム２及びブリッジ１の接合部）
と電極（銀短軸４２及び銀埋設部分３２）３．４との接
触抵抗が極めて小さくなり、発熱が低く、接合部位表面
に焼は変色、圧痕が生じない。For example, the bridge 1 made of titanium or titanium alloy has grooves (fitting stepped portions) at both ends into which the rim 2 is fitted at appropriate positions.
11 is preformed. The groove portions 11 are cut by, for example, a cutting tool (not shown) in accordance with the curved curvature of the rim 2, and are set so as to fit tightly into each other. This bridge 1 is fitted and fixed in a bridge fitting recess 31 formed on the upper surface of the lower electrode 3 formed in the shape of a base plate. Then, a suitable position of the rim 2 made of, for example, titanium or a titanium alloy is aligned and joined to the groove 11 of the bridge 1. In this state, the upper electrode 4, which is arranged upwardly and facing each other, is lowered so as to be able to rise and fall in correspondence with the lower electrode 3, and the bonding area is pinched between the picture electrodes 3 and 4. The upper electrode 4 has a short shaft 42 formed of silver (or silver alloy) with low electrical resistance at the tip of a rod shaft 41 made of chromium copper.
In addition, the lower electrode 3 is made of plywood itself made of chromium copper, and in the central part of the plane, that is, the part corresponding to the rim fitting recess 31, is made of silver (with low electrical resistance). A silver alloy) member 32 is embedded therein. In this way, the upper and lower electrodes 3.4 (the roots of the upper and lower electrodes 3.4,
The joint portion is compressed by the current-carrying portion 42.32). Then, by passing a current from the upper electrode 4 (silver short shaft 41) side, the current flows in a concentrated manner to the joining region, and the joining region is resistance welded. In other words, the joint parts are tack-attached without the intervention of brazing filler metal. This resistance welding is a light adhesion that maintains the temporary attachment when no external force is applied. Electrode 3.4 with low electrical resistance (silver short axis 42 and silver buried portion 32
), weld base metal (joint part of rim 2 and bridge 1)
The contact resistance between the electrode (silver short shaft 42 and silver buried portion 32) 3.4 is extremely small, heat generation is low, and no discoloration or indentation occurs on the surface of the bonded area.
この抵抗溶接（仮付け）処理が終了した時点で、仮付は
状態の適否を目視により判定する。仮に、この仮付は状
態が眼鏡フレームの所定の外観体裁に仕上がっていない
場合は、次ぎの第２工程のろう付は処理は行わない。こ
の場合、仮付けの不適性を検討するために仮付けを外す
。この仮付けは、ろう材処理なしに弱く接着されている
ため、簡易に外せる。そして、不適となった原因、例え
ばリム２とブリッジ１との位置合わせの不適性、或いは
ブリッジ１の溝部１１の切削処理の不適性等を検討し、
原因に基づいて、再び同様に仮付は処理を実行し修正す
る。When this resistance welding (tacking) process is completed, the suitability of the tacking is visually determined. If this tacking does not result in a predetermined external appearance of the eyeglass frame, the next second step of brazing is not performed. In this case, remove the tacking to examine whether it is inappropriate. This temporary attachment is weakly bonded without any brazing material treatment, so it can be easily removed. Then, we examine the causes of the unsuitability, such as the unsuitability of the alignment between the rim 2 and the bridge 1, or the unsuitability of the cutting process of the groove 11 of the bridge 1, etc.
Based on the cause, the tacking process is performed and corrected again in the same way.
この後、つまり適正に仮付は処理が達成されているもの
、及び仮付けが適正に修正されたものについて、第１図
（Ｂ）に示するう付は処理（第２工程）が実行される。After this, the tacking process (second step) shown in FIG. Ru.
ろう付は処理は、仮付は状態にある眼鏡フレームのリム
２及びブリッジ１の接合部位を、上・下電極３．４にて
挟圧し、上電極（銀短軸４２）４から電流を流し、接合
部位を加熱する。この加熱状態において、ろう材、例え
ば薄板状のチタニウムのろう材５を接合部位に接触させ
る。これにより、ろう材５が溶融し、接合部位の外表面
より接合部位の接触間隙に、毛管現象により流れ込み、
リム２とブリッジ１間の固着が達成される。For brazing, the rim 2 and the bridge 1 of the eyeglass frame, which are in the tacking state, are clamped between the upper and lower electrodes 3.4, and a current is applied from the upper electrode (silver short shaft 42) 4. , heating the joining area. In this heated state, a brazing material, for example a thin plate-shaped titanium brazing material 5, is brought into contact with the joining portion. As a result, the brazing filler metal 5 melts and flows from the outer surface of the joint part into the contact gap of the joint part by capillary action.
A fixation between the rim 2 and the bridge 1 is achieved.
かくして、この眼鏡の製造方法では、第１段階において
リム２とブリッジ１との接合部位に対し、電気抵抗の低
い電極（銀短軸４１、銀埋設部分３２）３．４の挟圧に
よる機械的圧力をかけ、電流による発熱により仮付け（
抵抗溶接）処理を行う。Thus, in this eyeglass manufacturing method, in the first step, the joining portion between the rim 2 and the bridge 1 is mechanically compressed by the electrodes 3.4 with low electrical resistance (silver short axis 41, silver embedded portion 32). Temporary attachment (
Resistance welding) processing.
この場合において、電極３．４は、接合部位に接触する
面が、それぞれ電気抵抗の極めて低い銀短軸４２及び銀
埋設部分３２に設定しであるため、リム２及びブリッジ
ｌの接合部位外面と電極３．４間の接触抵抗が低くなり
、接合部位外面に焼は変色、圧痕が発生せず、製品価値
を低下させることがない。In this case, the surface of the electrode 3.4 that contacts the bonding site is set at the short silver axis 42 and the silver embedded portion 32, which have extremely low electrical resistance, respectively, so that the surface of the electrode 3.4 is in contact with the outer surface of the bonding site of the rim 2 and the bridge l. The contact resistance between the electrodes 3 and 4 is reduced, and no discoloration or impressions occur on the outer surface of the bonded area, and the product value is not reduced.
そして、仮付は状態の適正なものについてのみ、第２段
階においてろう付けによる固着処理を実行する。従って
、仮に仮付は状態が不適であれば、容易に修正作業が実
行でき、従来のように不良品を生来することがない。ま
た、ろう付は処理を行う時点においては、既に接合部位
は仮接着されているため、従来のように熱容量の大きい
位置決め用治具が不要であり、加熱コントロールが簡単
になる。Then, in the second stage, the fixing process by brazing is performed only on those in appropriate condition. Therefore, if the condition of the tacking is inappropriate, correction work can be easily carried out, and there is no possibility of producing defective products as in the past. In addition, since the joining parts are already temporarily bonded at the time of brazing, there is no need for a positioning jig with a large heat capacity as in the past, and heating control becomes easier.
（へ）発明の効果
この発明では、以上のように、リムとブリッジとの接合
部位を、抵抗溶接するに際し、リム及びブリッジに接面
する通電部分を電気抵抗の極めて小さい部材にて構成し
た電極を使用することとしたから、リム及びブリッジの
接合部位と電極との間の接力虫抵抗が小さくなる。従っ
て、従来のように電気抵抗の高いクロム銅製電極使用に
よる抵抗溶接のように、接合部位外面に発熱による焼は
変色、圧痕の発生が住じず、製品価値の高い［Ｉｆｆ鏡
フレームを製造し得る。また、この仮付けは、ろう材を
使用せずに弱く接着するものであるため、容易に取り外
すことが出来、仮に仮付は状態が不適正なものについて
は、簡易に修正し得、その後に、ろう付けによる完全固
着処理を実行し得る等、発明日的を達成した優れた効果
を有する。(F) Effects of the Invention In this invention, as described above, when resistance welding the joint portion between the rim and the bridge, the current-carrying portion that comes in contact with the rim and the bridge is made of an electrode with extremely low electrical resistance. Since this is used, the contact resistance between the joint portion of the rim and bridge and the electrode is reduced. Therefore, unlike conventional resistance welding using chromium copper electrodes with high electrical resistance, there is no discoloration or impressions caused by heat generation on the outer surface of the joint area, and the product value is high. obtain. In addition, since this tacking is a weak bond without using brazing material, it can be easily removed, and if the tacking is in an inappropriate condition, it can be easily corrected and then The present invention has excellent effects that achieve the original purpose of the invention, such as being able to perform a complete fixation process by brazing.
第１図（Ａ）は、実施例眼鏡フレームの製造方法の仮付
は工程を示す説明図、第１図、（Ｂ）は、実施例眼鏡フ
レームの製造方法のろう付は工程を示す説明図、第２図
は、従来の眼鏡フサームの製造方法を示す説明図、第３
図は、眼鏡フレームを示す斜視図である。
１ニブリツジ、 ２：リム、
３：下電極、 ４：上電極、
５：ろう材、 ３２：銀埋設部分、４２：銀短軸
。
特許出願人 八洲電機株式、会社代理人 弁
理士 中 村 茂 信
第２図
第３図FIG. 1 (A) is an explanatory diagram showing the tacking process in the manufacturing method of the example spectacle frame, and FIG. 1 (B) is an explanatory diagram showing the brazing process in the manufacturing method of the example spectacle frame. , FIG. 2 is an explanatory diagram showing a conventional method of manufacturing spectacle futherm, and FIG.
The figure is a perspective view showing an eyeglass frame. 1 Ni bridge, 2: Rim, 3: Lower electrode, 4: Upper electrode, 5: Brazing metal, 32: Silver embedded part, 42: Silver short axis. Patent applicant: Yasu Electric Co., Ltd., company agent: patent attorney Shin Nakamura, Figure 2, Figure 3
Claims (2)
リッジを位置決めし、このブリッジの溝部に前記リムの
一部を当接させ、このブリッジとリムとの接合部位に電
極を圧接し電流を所定時間通電して抵抗溶接する眼鏡の
製造方法において、前記電極は、上記接合部位に対応す
る位置に電気抵抗の小さい部材を配備し、この部材にて
抵抗溶接を実行するようにしたことを特徴とする眼鏡の
製造方法。(1) Position the bridge so that it corresponds to the rim for holding the eyeglass lens, bring a part of the rim into contact with the groove of the bridge, apply pressure to the joint between the bridge and the rim, and apply a current. In the method for manufacturing eyeglasses in which resistance welding is performed by applying current for a predetermined period of time, the electrode is characterized in that a member with low electrical resistance is provided at a position corresponding to the joining site, and resistance welding is performed with this member. A method for manufacturing eyeglasses.
着してなる特許請求の範囲第１項記載の眼鏡の製造方法
。(2) The method for manufacturing eyeglasses according to claim 1, wherein the electrode is formed by integrally bonding a short silver shaft to the tip of a copper rod shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31178187A JPH01152418A (en) | 1987-12-09 | 1987-12-09 | Production of spectacles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31178187A JPH01152418A (en) | 1987-12-09 | 1987-12-09 | Production of spectacles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01152418A true JPH01152418A (en) | 1989-06-14 |
Family
ID=18021394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31178187A Pending JPH01152418A (en) | 1987-12-09 | 1987-12-09 | Production of spectacles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01152418A (en) |
-
1987
- 1987-12-09 JP JP31178187A patent/JPH01152418A/en active Pending
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