JPH0181859U - - Google Patents
Info
- Publication number
- JPH0181859U JPH0181859U JP1987178481U JP17848187U JPH0181859U JP H0181859 U JPH0181859 U JP H0181859U JP 1987178481 U JP1987178481 U JP 1987178481U JP 17848187 U JP17848187 U JP 17848187U JP H0181859 U JPH0181859 U JP H0181859U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- tube
- metal foils
- double coil
- light bulb
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 4
- 239000011888 foil Substances 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
Landscapes
- Resistance Heating (AREA)
Description
第１図は従来の白熱電球の説明用断面図、第２
図は本考案の白熱電球の説明用断面図である。
４，４′……内部リード棒、５……ダブルコイ
ルフイラメント、５４，５４′……小径部、５５
……中間部、５６，５６′……連結部。
Figure 1 is an explanatory cross-sectional view of a conventional incandescent light bulb;
The figure is an explanatory cross-sectional view of the incandescent light bulb of the present invention. 4, 4'... Internal lead rod, 5... Double coil filament, 54, 54'... Small diameter part, 55
...Middle part, 56, 56'...Connecting part.
Claims (1)
箔と、この一対の金属箔の夫々から管外に延びる
一対の外部リード棒と、前記一対の金属箔の夫々
から管内に延びる一対の内部リード棒と、前記一
対の内部リード棒先端に両端を係止したダブルコ
イルフイラメントとより成り、前記ダブルコイル
フイラメントは巻回径と巻回ピツチが一様なシン
グルコイルを、両端の巻回径が中間より小になる
べく更に巻回して構成され、該両端の小径部に前
記内部リード棒を挿入係止して設けられたことを
特徴とする白熱電球。 A tube, a pair of metal foils embedded in a sealed portion of the tube, a pair of external lead rods extending outside the tube from each of the pair of metal foils, and a pair of external lead rods extending into the tube from each of the pair of metal foils. and a double coil filament with both ends fixed to the tips of the pair of internal lead rods, and the double coil filament has a single coil with a uniform winding diameter and winding pitch, and a double coil filament with a single coil having a uniform winding diameter and winding pitch. An incandescent light bulb characterized in that the inner lead rod is inserted and locked into the small diameter portions at both ends of the incandescent light bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178481U JPH0181859U (en) | 1987-11-24 | 1987-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178481U JPH0181859U (en) | 1987-11-24 | 1987-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181859U true JPH0181859U (en) | 1989-05-31 |
Family
ID=31470095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987178481U Pending JPH0181859U (en) | 1987-11-24 | 1987-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181859U (en) |
-
1987
- 1987-11-24 JP JP1987178481U patent/JPH0181859U/ja active Pending