JPH0233851A - Tubular bulb - Google Patents
Tubular bulbInfo
- Publication number
- JPH0233851A JPH0233851A JP18041388A JP18041388A JPH0233851A JP H0233851 A JPH0233851 A JP H0233851A JP 18041388 A JP18041388 A JP 18041388A JP 18041388 A JP18041388 A JP 18041388A JP H0233851 A JPH0233851 A JP H0233851A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- resin adhesive
- bulb
- silicone resin
- cap
- 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
- 239000000853 adhesive Substances 0.000 claims abstract description 120
- 230000001070 adhesive effect Effects 0.000 claims abstract description 119
- 239000005011 phenolic resin Substances 0.000 claims abstract description 40
- 239000012790 adhesive layer Substances 0.000 claims abstract description 20
- 229920002050 silicone resin Polymers 0.000 claims description 33
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 4
- 229910052710 silicon Inorganic materials 0.000 abstract 4
- 239000010703 silicon Substances 0.000 abstract 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 30
- 229920001568 phenolic resin Polymers 0.000 description 30
- 230000006750 UV protection Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 230000002070 germicidal effect Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は管球バルブの端部に筒形口金を接着固定した管
球において、２種類の接着剤を併用して耐熱性と耐紫外
線性を向上して長寿命にするとともに、硬化時の固定時
間を短縮したものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention provides a heat-resistant tube bulb in which a cylindrical cap is adhesively fixed to the end of the tube bulb by using two types of adhesives together. This product has improved durability and UV resistance, resulting in a longer service life, and shortens the fixing time during curing.
（従来の技術）
電球や蛍光ランプにおいて、バルブの端部に筒形口金を
フェノール樹脂系接着剤層を介して接着固定したものが
多く使用されている。このようなフェノール樹脂系接着
剤はフェノール樹脂、シェラツク、ロジンなどの樹脂類
に炭酸カルシウム粉末を配合したもので、硬化速度が速
く、硬化後の接着力が強く、しかもバルブのガラスに歪
みを生じることなくさらに安価である利点がある。(Prior Art) In many light bulbs and fluorescent lamps, bulbs in which a cylindrical cap is adhesively fixed to the end of the bulb via a phenolic resin adhesive layer are used. These phenolic resin adhesives are made by blending calcium carbonate powder with resins such as phenol resin, shellac, and rosin, and have a fast curing speed and strong adhesion after curing, and they do not cause distortion to the glass of the bulb. It has the advantage of being even cheaper.
（発明が解決しようとする課題）
フェノール樹脂系接着剤は１８０℃程度が使用の限界で
耐熱性が充分でなく、しかも紫外線によって劣化して寿
命中に接着剤が剥離することがまれに発生するなど、用
途によっては問題になることがある。(Problem to be solved by the invention) Phenolic resin adhesives do not have sufficient heat resistance, with the limit of use being around 180°C, and in addition, they deteriorate due to ultraviolet rays, and the adhesive rarely peels off during its life. This may become a problem depending on the application.
これに対し、シリコーン樹脂系接着剤は耐熱性と耐紫外
線性に優れ、また、ガラスと組成が近似しており、ガラ
スとの接着性も優れているので長期使用しても剥離のお
それがないが、その反面、粘性が高くて扱いにくいこと
、完全硬化に時間がかかること、高価なことなどの欠点
があり、実用化しにくく、フェノール樹脂系接着剤に完
全に置き換えることができなかった。On the other hand, silicone resin adhesives have excellent heat resistance and UV resistance, and their composition is similar to that of glass, so they have excellent adhesion to glass, so there is no risk of peeling even after long-term use. However, on the other hand, it has drawbacks such as being difficult to handle due to its high viscosity, taking a long time to completely cure, and being expensive, making it difficult to put it into practical use and making it impossible to completely replace phenolic resin adhesives.
（課題を解決するための手段）
本発明は口金接着剤の耐熱性と耐紫外線性を向上し、し
かも製造容易で安価な管球を提供するもので、接着剤層
のバルブに接する部分の一部をシリコーン樹脂系接着剤
で構成し、他の部分をフェノール樹脂系接着剤で構成し
たことによって上述の目的を達成したものである。(Means for Solving the Problems) The present invention improves the heat resistance and ultraviolet resistance of the cap adhesive, and provides an easy-to-manufacture and inexpensive bulb. The above object is achieved by constructing one part with a silicone resin adhesive and the other part with a phenol resin adhesive.
（作 用）
バルブから接着剤層に伝達された熱はこの接着剤層中を
伝導して口金内面に近づくと、口金に熱を奪われて温度
が低下し、低温になっている。また、接着剤層に入射し
た紫外線は深部まで到達しない。したがって、接着剤層
のうちバルブに接した部分の一部を耐熱性、耐紫外線性
に富むとともにガラスとの接着性のよいシリコーン樹脂
系接着剤で構成すれば、接着当初はフェノール樹脂系接
着剤で支持し、この接着剤が劣化するに従ってシリコー
ン樹脂系接着剤が硬化して接着力が向上し、長期点灯し
ても剥離しない。(Function) The heat transferred from the bulb to the adhesive layer is conducted through this adhesive layer and when it approaches the inner surface of the cap, the heat is taken away by the cap and the temperature decreases, resulting in a low temperature. Furthermore, the ultraviolet rays that have entered the adhesive layer do not reach deep inside the adhesive layer. Therefore, if a part of the adhesive layer in contact with the bulb is made of a silicone resin adhesive that is heat resistant and ultraviolet resistant and has good adhesion to glass, it is possible to use a phenolic resin adhesive at the beginning of bonding. As this adhesive deteriorates, the silicone resin adhesive hardens and its adhesive strength improves, so that it will not peel off even after long-term lighting.
（実施例） 本発明の詳細を図示の実施例によって説明する。(Example) The details of the invention will be explained by means of illustrated embodiments.
第１図は本発明を適用してなる一般照明用電球の一実施
例を示し、図中、（１）は電球バルブ、（２）はこのバ
ルブ（１）の基端部に装着された筒形口金、（３）はこ
の口金（２）をバルブ（１）の端部（１１）に接着固定
した接着剤層である。FIG. 1 shows an embodiment of a general lighting bulb to which the present invention is applied. In the figure, (1) is a light bulb bulb, and (2) is a tube attached to the base end of this bulb (1). The shaped cap (3) is an adhesive layer that adhesively fixes the cap (2) to the end (11) of the bulb (1).
上記口金（２）はねじ込み形で、砲金、アルミニウムな
どからなる筒形の口金シェル（２１）にガラスなどの絶
縁物（２２）を介して頂部に端子（２３）を結合してあ
り、口金シェル（２１）の開口部（２４）内面とバルブ
（１）の端部（１１）外面との間に上述の接着剤層（３
）を介在させてバルブ（１）に嵌着しである。The cap (2) is of a screw type, and has a cylindrical cap shell (21) made of gunmetal, aluminum, etc., and a terminal (23) connected to the top via an insulator (22) such as glass. The adhesive layer (3) is between the inner surface of the opening (24) of the valve (21) and the outer surface of the end (11) of the bulb (1).
) is inserted into the valve (1).
上記接着剤層（３）は第２図に拡大して示すように、口
金開口部（２４）とバルブ（１）の端部（１１）の外面
との間に介在したシリコーン樹脂系接着剤（３１）とこ
のシリコーン樹脂系接着剤（３１）と相接して口金中間
部（２５）とバルブ（１）との間に介在したフェノール
樹脂系接着剤層（３２）とからなる。これら両種接着剤
（３１）、 （３２）のうちシリコーン樹脂系接着剤（
３１）は耐熱性、耐紫外線性に富み、接着力も充分であ
るが、硬化速度が遅い欠点がある。これに対し、フェノ
ール樹脂系接着剤（３２）は速硬性で接着力も充分であ
るが耐熱性、耐紫外線性に劣る。As shown in an enlarged view in FIG. 2, the adhesive layer (3) is a silicone resin adhesive ( 31) and a phenolic resin adhesive layer (32) interposed between the cap intermediate portion (25) and the bulb (1) in contact with the silicone resin adhesive (31). Of these two types of adhesives (31) and (32), silicone resin adhesive (
31) has excellent heat resistance and ultraviolet resistance, and has sufficient adhesive strength, but has the drawback of slow curing speed. On the other hand, the phenol resin adhesive (32) has fast curing and sufficient adhesive strength, but is inferior in heat resistance and ultraviolet resistance.
この口金（２）を接着するには、口金（２）の開口部（
２４）内面にフェノール樹脂系接着剤（３２）およびシ
リコーン樹脂系接着剤（３１）をそれぞれ被着し、つい
でこの口金（２）をバルブ端部（１１）に嵌装し、冶具
を用いて保持しながら約２０℃で２分間加熱する。To glue this cap (2), the opening of the cap (2) (
24) Apply phenolic resin adhesive (32) and silicone resin adhesive (31) to the inner surface, then fit this cap (2) onto the valve end (11) and hold it using a jig. Heat at about 20°C for 2 minutes.
するとフェノール樹脂系接着剤（３２）が急速に硬化し
、口金（２）が接着される。このとき、シリコーン樹脂
系接着剤（３１）は未だ硬化が不充分なため接着力が不
充分であるが、フェノール樹脂系接着剤（３２）の接着
力によって両者が接合され、治具から取り外しても口金
（２）が脱落することもなく、また、ねじれや曲りなど
の装着不良が発生することもない。そうして１口金（２
）装着後のエージングその他の点灯中にシリコーン樹脂
系接着剤（３１）の硬化が進み、フェノール樹脂系接着
剤（３２）が劣化しても充分な接着強度が維持される。Then, the phenolic resin adhesive (32) rapidly hardens, and the cap (2) is adhered. At this time, the adhesive strength of the silicone resin adhesive (31) is insufficient because it has not yet fully cured, but the adhesive strength of the phenolic resin adhesive (32) joins them together, and the two can be removed from the jig. The cap (2) will not fall off, and no installation defects such as twisting or bending will occur. Then make one deposit (2
) The silicone resin adhesive (31) is cured during aging and other lighting after installation, and sufficient adhesive strength is maintained even if the phenolic resin adhesive (32) deteriorates.
つぎに、この実施例電球の作用を説明する。この電球の
バルブ（１）側を下方にして点灯すれば対流によってバ
ルブ端部（１１）が強く熱せられ、かつ強力な光が入射
する。この熱と光とがバルブ端部（１１）を透過してシ
リコーン樹脂系接着剤（３１）とフェノール樹脂系接着
剤（３２）とに伝達される。しかし、シリコーン樹脂系
接着剤（３１）は上述のとおり耐熱性に富みかつ光に対
しても劣化が極めて少ないので、長期点灯しても接着力
がほとんど低下しない。また、フェノール樹脂系接着剤
（３２）はバルブ（１）に接する部位が熱と光との作用
により時間とともに劣化が進み、次第に接着力が低下す
る。Next, the operation of this example light bulb will be explained. When the light bulb is turned on with the bulb (1) side facing downward, the bulb end (11) is strongly heated by convection and intense light is incident. This heat and light pass through the bulb end (11) and are transmitted to the silicone resin adhesive (31) and the phenolic resin adhesive (32). However, as described above, the silicone resin adhesive (31) has high heat resistance and is extremely less likely to deteriorate when exposed to light, so its adhesive strength hardly decreases even when the adhesive is turned on for a long period of time. Further, the portion of the phenolic resin adhesive (32) that contacts the bulb (1) deteriorates over time due to the action of heat and light, and its adhesive strength gradually decreases.
しかし、シリコーン樹脂系接着剤（３１）の背後にある
フェノール樹脂系接着剤（３ｊ）およびバルブ（１）の
外面から離れた位置にある同接着剤（３２）は熱と光と
の影響が少ないので、接着力が低下することがない。し
たがって、シリコーン樹脂系接着剤（３１）が単独で接
着剤層（３）を形成した部位も、フェノール樹脂系接着
剤（３２）と重層して接着剤層（３）を形成した部位も
、ともに寿命末期に到るまで充分な接着強度（日本工業
規ＪＩＳ Ｃ７５０１に規定される一般照明用電球の接
着強度３ Ｎ−ｍ以上）に保たれる。However, the phenolic resin adhesive (3j) behind the silicone resin adhesive (31) and the same adhesive (32) located away from the outer surface of the bulb (1) are less affected by heat and light. Therefore, the adhesive strength will not decrease. Therefore, both the part where the silicone resin adhesive (31) formed the adhesive layer (3) alone and the part where the adhesive layer (3) was formed by layering with the phenol resin adhesive (32) Sufficient adhesive strength (adhesive strength of 3 N-m or more for general lighting bulbs specified in Japanese Industrial Standards JIS C7501) is maintained until the end of its life.
つぎに、第２の実施例を第３図に示す。このものはバル
ブ（１）の端部（１１）にシリコーン樹脂系接着剤（３
１）を塗布し、他方、口金（２）シェル（２１）の開口
部（２４）と中間部（２５）とにフェノール樹脂系接着
剤（３２）を被着し、通常の方法で、口金（２）をバル
ブ端部（１１）に装着し接着したもので、バルブ端部（
１１）と口金シェル（２１）の開口部（２４）との間に
はシリコーン樹脂系接着剤（３１）をフェノール樹脂系
接着剤（３２）とが重層して介在し、さらにバルブ先端
部（１２）と口金シェル（２１）の中間部（２５）との
間にはフェノール樹脂系接着剤（３２）が単独の層をな
して介在している。その他同一部分には同一符号を付し
て説明を略す。Next, a second embodiment is shown in FIG. This product has silicone resin adhesive (3) attached to the end (11) of the valve (1).
1), and on the other hand, apply a phenolic resin adhesive (32) to the opening (24) and middle part (25) of the shell (21) of the cap (2), and then attach the cap ( 2) is attached and glued to the valve end (11).
A silicone resin adhesive (31) and a phenolic resin adhesive (32) are interposed between the valve tip (11) and the opening (24) of the cap shell (21), and the valve tip (12) ) and the intermediate portion (25) of the cap shell (21), a phenolic resin adhesive (32) is interposed as a single layer. Other identical parts are given the same reference numerals and explanations will be omitted.
この第２の実施例のものもシリコーン樹脂系接着剤（３
１）が耐熱性に富みかつ光によって劣化しにくいので、
長期使用によって接着力が低下することなく、また、こ
のシリコーン樹脂系接着剤（３１）によって保護されて
いるので、重層されたフェノール樹脂系接着剤（３２）
がほとんど劣化しない。そうして、接着初期においては
バルブ先端部（１２）に直接被着したフェノール樹脂系
接着剤（３２）によって接着強度が保たれ、点灯継続中
シリコーン樹脂系接着剤（３１）の硬化が進行してその
接着力が増強してフェノール樹脂系接着剤（３２）の接
着力低下をおぎない、長期点灯としても接着力低下によ
る口金（２）の脱落などの不良がほとんど発生しない。The silicone resin adhesive (3
1) has high heat resistance and is not easily deteriorated by light,
The layered phenolic resin adhesive (32) does not lose its adhesive strength after long-term use and is protected by the silicone resin adhesive (31).
hardly deteriorates. At the initial stage of adhesion, the adhesive strength is maintained by the phenolic resin adhesive (32) directly applied to the bulb tip (12), and the silicone resin adhesive (31) continues to harden while the lighting continues. The adhesive strength of the phenol resin adhesive (32) is increased and the adhesive strength of the phenolic resin adhesive (32) is prevented from decreasing, and defects such as falling off of the base (2) due to the decrease in adhesive strength hardly occur even after long-term lighting.
さらに、第３の実施例を第４図に示す。このものはバル
ブ（１）の端部（１１）から先端部（１２）までシリコ
ーン樹脂系接着剤（３１）を塗布するとともにその中間
部に接着剤（３１）を被着しない窓状部（１３）を点状
または帯状に配設し、かつ口金シェル（２１）の開口部
（２４）の縁部にはシリコーン樹脂系接着剤（３１）中
間部（２５）にはフェノール樹脂系接着剤（３２）を被
着し、通常のとおりバルブ端部（１１）に口金（２）を
装着して接着したもので、その他同一部分には同一符号
を付して説明を略す。Further, a third embodiment is shown in FIG. This product has a silicone resin adhesive (31) applied from the end (11) to the tip (12) of the bulb (1), and a window-like part (13) where no adhesive (31) is applied to the middle part. ) are arranged in dots or strips, and a silicone resin adhesive (31) is applied to the edge of the opening (24) of the cap shell (21), and a phenolic resin adhesive (32) is applied to the middle part (25). ), and the cap (2) is attached and glued to the end of the valve (11) as usual.Other identical parts are given the same reference numerals and explanations are omitted.
この第３の実施例のものも前述の両実施例のものと同様
な作用効果を有する。This third embodiment also has the same effects as those of both of the above-mentioned embodiments.
さらに、本発明は蛍光ランプや殺菌灯の口金接着に適用
して著効がある。この場合、接着剤（３）の具体的な被
着配置構造は上述した第１ないし第３の実施例のいずれ
でもよい。この場合１点灯によってバルブ端部の温度が
あまり上昇していないが、端部から紫外線を導出してフ
ェノール樹脂系接着剤を劣化させる。特に、殺菌灯はバ
ルブの紫外線透過性が良いのでフェノール樹脂系接着剤
の劣化が非常に速いが、この場合もフェノール樹脂系接
着剤の劣化が進むに従って耐紫外線性のよいシリコーン
樹脂系接着剤の硬化が進行してその接着力が向上するの
で、寿命末期に到るまで所要の接着力が維持され、口金
剥離が極めて少ない。Furthermore, the present invention is highly effective when applied to the cap bonding of fluorescent lamps and germicidal lamps. In this case, the specific arrangement structure for adhering the adhesive (3) may be any one of the first to third embodiments described above. In this case, the temperature at the end of the bulb does not rise much after one turn on, but ultraviolet rays are extracted from the end and deteriorate the phenolic resin adhesive. In particular, phenolic resin adhesives in germicidal lamps deteriorate very quickly because the bulbs have good UV transmittance, but in this case as well, as phenolic resin adhesives deteriorate, silicone resin adhesives with good UV resistance are used. Since the adhesive strength improves as the curing progresses, the required adhesive strength is maintained until the end of the life, and peeling of the base is extremely rare.
つぎに、上述した実施例１の電球について、シリコーン
樹脂系接着剤を０．１ｇ、フェノール樹脂系接着剤２ｇ
を用いて接着したものをバルブ（１）側を下方にして点
灯し、点灯時間と接着強度との関係を調整した。この結
果を第５図に示す。図は横軸に点灯時間を（Ｈｒ）の単
位でとり、縦軸に接着強度をＮ−ｎ＋のｍ位でとったも
ので、実線は上記実施例１の電球、破線は従来のフェノ
ール樹脂系接着剤単独で接着した場合の強度曲線をそれ
ぞれ示す。この図から明らかなとおり、本実施例１のも
のが、５００Ｈｒ程度までは主としてフェノール樹脂系
接着剤によって必要な接着力が維持され、かつ以後の時
間においては主としてシリコーン樹脂系接着剤によって
必要な接着力が維持されており、寿命末期に到るまで接
着力が５〜ＩＯＮ−ｍ以上５ＯＮ−ｎ＋以下の適値に保
たれ、従来に比較して格段に優れている。Next, for the light bulb of Example 1 described above, 0.1 g of silicone resin adhesive and 2 g of phenolic resin adhesive were added.
The bulb (1) side was glued using a light bulb (1) facing downward, and the relationship between lighting time and adhesive strength was adjusted. The results are shown in FIG. In the figure, the horizontal axis shows the lighting time in units of (Hr), and the vertical axis shows the adhesive strength in m of N-n+.The solid line is the light bulb of Example 1, and the broken line is the conventional phenolic resin bulb. The strength curves when bonded with adhesive alone are shown. As is clear from this figure, in Example 1, the necessary adhesive force was maintained mainly by the phenolic resin adhesive for about 500 hours, and after that, the necessary adhesive force was maintained mainly by the silicone resin adhesive. The adhesive force is maintained at an appropriate value of 5 to ION-m or more and 5 ON-n+ or less until the end of the life, which is significantly superior to conventional adhesives.
また、上述の殺菌灯について試験した。この場合も実施
例１の電球に準拠した方法で、シリコーン樹脂系接着剤
０．１ｇ、フェノール樹脂系接着剤２ｇを用いて接着し
たものについて点灯時間と接着強度との関係を調整した
。この結果を第６図に示す。この図も横軸に点灯時間を
（）Ｉｒ）の単位でとり、縦軸に接着強度をＮ−ｍの単
位でとったもので、実線は上記実施例殺菌灯、破線は従
来のフェノール樹脂系接着剤を単独に用いて接着したも
のの強度曲線をそれぞれ示す。この場合も上述と同様フ
エノール樹脂系接着剤の接着強度が低下するに従ってシ
リコーン樹脂系接着剤の接着強度が向上し、しかもシリ
コーン樹脂系接着剤の耐紫外線特性が優れているため５
０００時間を越えてもなお充分な接着強度を維持してい
ることが理解できる。これを従来のものが１５００時間
前後で口金脱落が生じるのに比較して、格段に優れてい
ることが理解できる。The germicidal lamp described above was also tested. In this case as well, the relationship between lighting time and adhesive strength was adjusted using a method based on the light bulb of Example 1, using 0.1 g of a silicone resin adhesive and 2 g of a phenolic resin adhesive. The results are shown in FIG. In this figure, the horizontal axis shows the lighting time in ()Ir), and the vertical axis shows the adhesive strength in N-m. The strength curves of those bonded using only an adhesive are shown. In this case, as mentioned above, as the adhesive strength of the phenolic resin adhesive decreases, the adhesive strength of the silicone resin adhesive increases, and moreover, the silicone resin adhesive has excellent UV resistance.
It can be seen that sufficient adhesive strength is still maintained even after over 1,000 hours. It can be seen that this is much better than the conventional type, which causes the cap to fall off after around 1500 hours.
しかして、本発明において、シリコーン樹脂系接着剤の
被着面積は上述のとおり、寿命末期に到るまで必要な接
着強度を維持できればよく、またフェノール樹脂系接着
剤はシリコーン樹脂系接着剤が硬化するまでの間口金を
良好に保持できればよい。要は管球用口金接着剤として
要求される必要にして充分な接着強度が判れば、これか
ら再接着剤のそれぞれの接着面積を求めることができる
。Therefore, in the present invention, as mentioned above, the adhesion area of the silicone resin adhesive is sufficient as long as it can maintain the necessary adhesive strength until the end of its life. It is sufficient to be able to hold the cap well until this happens. In short, if the necessary and sufficient adhesive strength required for a tube cap adhesive is known, the adhesive area of each re-adhesive can be determined from this.
そうして、本発明は他の管球にも適用でき、また１口金
形状はねじ込み形に限らず差し込み形であってもよく、
その材質も金属性に限らず樹脂製であってもよい６また
１両口金形管球にも適用できることもちろんである。Thus, the present invention can be applied to other tubes, and the shape of the cap is not limited to a screw type, but may be a plug type.
The material is not limited to metal, and may be made of resin.Of course, it can also be applied to a double-ended tube.
このように、本発明の管球は管球バルブの端部に筒形口
金を接着剤層を介して接着固定したものにおいて、接着
剤層はバルブに接する部分の一部がシリコーン樹脂系接
着剤がらなり、他の部分がフェノール樹脂系接着剤から
なるので、点灯初期においては主としてフェノール樹脂
系接着剤により、またこの接着剤が劣化したときはシリ
コーン樹脂系接着剤によって口金を支持するので長期点
灯しても接着力の低下が少なく、口金脱落が極めて少な
い利点があり、さらに、高価なシリコーン樹脂系接着剤
の使用量が少ないので安価に製造できる利点もある。As described above, in the bulb of the present invention, a cylindrical cap is adhesively fixed to the end of a tube bulb via an adhesive layer, and a portion of the adhesive layer in contact with the bulb is made of silicone resin adhesive. Since the other parts are made of phenolic resin adhesive, the base is mainly supported by the phenolic resin adhesive during the initial lighting period, and when this adhesive deteriorates, the base is supported by the silicone resin adhesive, so it can be lit for a long time. It has the advantage that there is little deterioration in adhesive strength and very little chance of the cap falling off.Furthermore, it has the advantage that it can be manufactured at low cost because the amount of expensive silicone resin adhesive used is small.
第１図は本発明の管球の一実施例の一部切欠して要部の
断面を示した正面図、第２図は第１図の鎖線枠■部分の
拡大断面図、第３図は第２の実施例の要部拡大断面図、
第４図は第３の実施例の要部拡大断面図、第５図および
第６図は本発明の詳細な説明するグラフである。
（１）・・・バルブ （１１）・・・バル
ブ端部（１２）・・・先端部 （２）・・
・口金（２１）・・・口金シェル （２４）・
・・開口部（２５）・・・中間部 （３）
・・・接着剤層（３１）・・・シリコーン樹脂系接着剤
（３２）・・フェノール樹脂系接着剤
代理人 弁理士 大 胡 典 夫
第 １ 図
第 ２ 図
第 ３Ｉｌ！ｌ
第 ４ 図Fig. 1 is a partially cutaway front view of an embodiment of the tube of the present invention showing a cross section of the essential parts, Fig. 2 is an enlarged sectional view of the part surrounded by chain lines in Fig. 1, and Fig. 3 is An enlarged sectional view of the main parts of the second embodiment,
FIG. 4 is an enlarged sectional view of the main part of the third embodiment, and FIGS. 5 and 6 are graphs explaining the present invention in detail. (1)...Valve (11)...Valve end (12)...Tip (2)...
・Base (21)...Base shell (24)・
...Opening part (25)...Middle part (3)
...Adhesive layer (31)...Silicone resin adhesive (32)...Phenol resin adhesive Representative Patent Attorney Norio Ogo No. 1 Fig. 2 Fig. 3Il! l Figure 4
Claims (1)
定したものにおいて、上記接着剤層はバルブに接する部
分の一部がシリコーン樹脂系接着剤からなり、他の部分
がフェノール樹脂系接着剤からなることを特徴とする管
球。In the case where a cylindrical cap is adhesively fixed to the end of a tube bulb via an adhesive layer, a part of the adhesive layer that contacts the bulb is made of silicone resin adhesive, and the other part is made of phenol resin. A tube characterized by being made of adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18041388A JPH0233851A (en) | 1988-07-21 | 1988-07-21 | Tubular bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18041388A JPH0233851A (en) | 1988-07-21 | 1988-07-21 | Tubular bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233851A true JPH0233851A (en) | 1990-02-05 |
Family
ID=16082821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18041388A Pending JPH0233851A (en) | 1988-07-21 | 1988-07-21 | Tubular bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010146986A1 (en) * | 2009-06-17 | 2010-12-23 | 富士電機システムズ株式会社 | Solar cell module laminated body and method for manufacturing same |
-
1988
- 1988-07-21 JP JP18041388A patent/JPH0233851A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010146986A1 (en) * | 2009-06-17 | 2010-12-23 | 富士電機システムズ株式会社 | Solar cell module laminated body and method for manufacturing same |
| JP2011003657A (en) * | 2009-06-17 | 2011-01-06 | Fuji Electric Systems Co Ltd | Solar cell module stack and method of manufacturing the same |
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