JPH03671Y2

JPH03671Y2 -

Info

Publication number: JPH03671Y2
Application number: JP12174984U
Authority: JP
Priority date: 1984-08-08
Filing date: 1984-08-08
Publication date: 1991-01-11
Also published as: JPS6136959U

Description

【考案の詳細な説明】（産業上の利用分野）この考案は、自動車の前照灯用などとして使用
される口金付き電球（ハワゲン電球）に係り、さ
らにいえば、バルブ後端のピンチシール部を口金
プレートのラグ間の開口内に挿入配置した構成の
口金付き電球に関する。[Detailed description of the invention] (Field of industrial application) This invention relates to a light bulb with a base (Hawagen light bulb) used for automobile headlights, and more specifically, the pinch seal at the rear end of the bulb. The present invention relates to a light bulb with a base, in which the light bulb is inserted into an opening between lugs of a base plate.

（従来技術とその問題点など）従来の口金付き電球、例えば特公昭58−12706
号（特許第1193494号）公報に記載されたものは、
その口金プレートを第５図に示したとおり、ラグ
１１を口金プレート１０からピンチシール部の遊
端に向けて延在させてバルブ側を２箇所当接さ
せ、また、ピンチシール部にはラグ１１に対応し
た位置に突起を設け、ラグ１１はピンチシール部
に対し凹形状としてその隅部でピンチシール部と
係合せしめている。(Conventional technology and its problems, etc.) Conventional light bulbs with bases, such as Special Publication No. 58-12706
What is described in the publication No. 1193494 (Patent No. 1193494) is
As shown in FIG. 5, the lugs 11 are extended from the ferrule plate 10 toward the free end of the pinch seal portion, and are in contact with the valve side at two places. The lug 11 has a concave shape with respect to the pinch seal portion and engages with the pinch seal portion at its corner.

ところで、ピンチシール部を小さい圧力で保持
するためには、ラグ保持部の間隔を長くとる必要
がある。しかし、上記特許発明の如く下向き方向
にのみラグ１１を形成した場合には、ラグ１１の
切込みを深くしないかぎり保持間隔を長くするこ
とができない。もつとも、ラグ１１を口金プレー
ト１０の両側に突出させることにより保持間隔を
倍近くまで長くすることはできる。が、それもピ
ンチシール部の厚みにより限度があり、結局、ラ
グの保持圧力をさほど小さくすることはできなか
つた。また、ピンチシール部の短い側にもラグが
あり、バルブ径と口金径の近いものには使用でき
ない欠点があつた。 By the way, in order to hold the pinch seal part with a small pressure, it is necessary to make the interval between the lug holding parts long. However, when the lugs 11 are formed only in the downward direction as in the above-mentioned patented invention, the holding interval cannot be increased unless the notches of the lugs 11 are made deep. However, by making the lugs 11 protrude from both sides of the base plate 10, the holding interval can be nearly doubled. However, there is a limit to this depending on the thickness of the pinch seal portion, and in the end, it was not possible to reduce the lug holding pressure that much. Additionally, there was a lug on the short side of the pinch seal, which had the disadvantage that it could not be used with valves whose diameters were close to the mouth diameter.

次に、実開昭58−35268号に記載された口金付
き電球は、その口金プレート１２を第６図に示し
たとおり、少なくとも一対の中間押え片１３と、
少なくとも２対の側部押え片１４を備え、他方、
バルブのピンチシール部には前記中間押え片１３
と係合する突起及び突条部を設け、側部押え片１
４の外側が前記突条部に接触ないし近接せしめた
構成である。 Next, as shown in FIG. 6, the light bulb with a base described in Japanese Utility Model Application Publication No. 58-35268 has a base plate 12 having at least a pair of intermediate holding pieces 13,
At least two pairs of side pressing pieces 14 are provided;
The intermediate holding piece 13 is attached to the pinch seal portion of the valve.
Protrusions and protrusions that engage with the side presser piece 1 are provided.
The outer side of 4 is in contact with or close to the protrusion.

従つて、側部押え片（上部ラグ）１４が直接バ
ルブに触れバルブの強度を弱める欠点があつた。
即ち、ガラス強度の面からは一般的に設計応力は
安全率を２倍として約70Kg／cm²とされる。しか
し、このハロゲン電球の場合は、常温で３〜
8atmのガスが封入されており、点灯時にはこの
２〜３倍の圧力となり、そうした内圧によつて大
きな応力が働くので安全性の面では注意を要す
る。特に、ピンチシール部は導入線を封着し口金
に支持されるため重要である。例えば外径が
φ14.7、12V、65W用の場合、常温時と点灯時で
は長いバルブで30Kg／cm²、短いものでは70Kg／cm²
の応力差を生ずる。しかも、高温となるため熱膨
脹応力がこれに加算される。その上に、バルブ部
分に直接ラグが接触し保持圧力を加えると、応力
集中が顕著となり、バルブ破裂の危険が大であ
る。 Therefore, there was a drawback that the side holding piece (upper lug) 14 directly touched the valve, weakening the strength of the valve.
That is, from the viewpoint of glass strength, the design stress is generally set at approximately 70 kg/cm ² with the safety factor doubled. However, in the case of this halogen bulb, at room temperature the
The lamp is filled with 8 atm gas, and when the lamp is turned on, the pressure is two to three times higher than this, and this internal pressure creates a large amount of stress, so care must be taken in terms of safety. In particular, the pinch seal portion is important because it seals the lead-in wire and is supported by the cap. For example, if the outside diameter is φ14.7, 12V, 65W, the long bulb will weigh 30Kg/cm ² at room temperature and when lit, and the short bulb will weigh 70Kg/cm ²
This results in a stress difference of Moreover, since the temperature is high, thermal expansion stress is added to this. Furthermore, if the lug directly contacts the valve part and applies holding pressure, stress concentration becomes significant and there is a great risk of the valve bursting.

その他、ピンチシール部側面方向にガタが出来
易く、バルブ支持の信頼性が低いこと、あるいは
ラグのカツト部分は鋭利になつており、ピンチシ
ール部を口金プレートに挿入する際、前記カツト
部分でガラス表面に傷がつき強度を弱める等の欠
点があつた。 In addition, the pinch seal part tends to play in the side direction, making the valve support unreliable.Also, the cut part of the lug is sharp, and when inserting the pinch seal part into the cap plate, the glass It had drawbacks such as scratches on the surface and weakening of its strength.

（考案の目的）そこで、この考案の目的は、ピンチシール部に
できるだけ応力をかけずに、簡単でしかも安価な
口金プレートを組付けた口金付き電球を提供する
ことにある。(Purpose of the invention) Therefore, the purpose of the invention is to provide a light bulb with a cap that is simple and inexpensive to assemble a cap plate while minimizing stress on the pinch seal portion.

（考案の構成）上記目的を達成するために、この考案の口金付
き電球は、口金プレートに、その上方に曲げた上
部ラグを合計４個、下方に曲げた下部ラグを２
個、それぞれ対称的配置に設け、かつ、上部ラグ
はバルブ軸に向つて斜めに配置してあり、他方、
バルブにおけるピンチシール部との境界部に上部
ラグを止める突起を、そして、ピンチシール部の
両側面下方に下部ラグを止める突起を設けた構成
とされている。(Structure of the invention) In order to achieve the above object, the light bulb with a base of this invention has a total of four upper lugs bent upward and two lower lugs bent downward on the base plate.
the upper lugs are arranged diagonally toward the valve axis;
A protrusion for fixing the upper lug is provided at the boundary with the pinch seal part of the valve, and a protrusion for fixing the lower lug is provided below both sides of the pinch seal part.

（実施例）以下この考案を図示の実施例に基づいて説明す
ると、第１図と第２図に示した口金付き電球にお
いて、図中１はバルブ（ハロゲン電球）、２は金
属製の口金プレート、３と４は前記口金プレート
を上下相反する向きに押抜いて形成した上部ラグ
と下部ラグ、５は前記ラグ間の開口である。(Example) This invention will be explained below based on the illustrated example. In the light bulb with a base shown in FIGS. 1 and 2, 1 in the figure is a bulb (halogen light bulb), and 2 is a metal base plate. , 3 and 4 are upper and lower lugs formed by punching out the base plate in opposite directions, and 5 is an opening between the lugs.

バルブ１にはその後端に略矩形断面（第２図、
第３図参照）のピンチシール部６を設け、これが
口金プレート２の開口５中に挿入し保持されてい
る。 The bulb 1 has a substantially rectangular cross section (Fig. 2,
A pinch seal portion 6 (see FIG. 3) is provided, which is inserted into and held in the opening 5 of the base plate 2.

上部ラグ３は合計４個設けていると共に、各々
バルブ軸に向つて斜めの対称的配置で設けられて
いる。また、上部ラグ３の上端は各々外側へ折り
曲げてそのカツト部分がガラス表面に当らない形
態とされている。 A total of four upper lugs 3 are provided, and each is provided in a symmetrical arrangement diagonally toward the valve axis. Further, the upper ends of the upper lugs 3 are each bent outward so that the cut portions do not touch the glass surface.

他方、バルブ１におけるピンチシール部６との
境界部であつて上部ラグ３が当接する四隅部分
（第４図）に、厚肉リブ形状の上部突起７…が設
けられ、これを上部ラグ３が押圧する（第２図、
第３図）構成とされている。即ち、上部ラグ３は
圧縮力優勢の状態で上部突起７を押える。 On the other hand, thick rib-shaped upper protrusions 7 are provided at the four corners of the valve 1 at the boundary with the pinch seal portion 6 and in contact with the upper lugs 3 (FIG. 4). Press (Fig. 2,
(Fig. 3) configuration. That is, the upper lug 3 presses the upper protrusion 7 in a state where the compressive force is predominant.

下部ラグ４，４は、上部ラグ３…の中間部位に
おいて、ピンチシール部６の両側面を押えて保持
する形態とされている。 The lower lugs 4, 4 are configured to press and hold both side surfaces of the pinch seal portion 6 at intermediate portions of the upper lugs 3.

他方、ピンチシール部６の両側面下部には、突
条形態の下部突起８を横方向に設け（第４図）、
これに下部ラグ４が係止する（第２図）構成され
ている。 On the other hand, lower protrusions 8 in the form of protrusions are provided laterally at the lower portions of both sides of the pinch seal portion 6 (FIG. 4).
The lower lug 4 is engaged with this (FIG. 2).

従つて、ピンチシール部６は、上下のラグ３
…，４により３次元的に弾力的に保持され、ガタ
つきを生ずるおそれは決してないのである。 Therefore, the pinch seal portion 6 is attached to the upper and lower lugs 3.
..., 4, it is held elastically three-dimensionally and there is no risk of wobbling.

（作用効果）以上説明したように本考案によると、ラグを口
金プレートの上下両側に突出させているので、ラ
グの保持間隔を長くすることができる。その上、
上部ラグをバルブ軸に向つて斜めに配置したの
で、ピンチシール部の厚みの如何にかかわらず一
層保持間隔を長くすることができ、ピンチシール
部を比較的小さい力で保持することができる。。
即ち、ピンチシール部にあまり応力をかけないで
済みバルブ強度上の不安が少ない。(Function and Effect) As explained above, according to the present invention, since the lugs are made to protrude from both the upper and lower sides of the base plate, the interval at which the lugs are held can be lengthened. On top of that,
Since the upper lug is disposed obliquely toward the valve axis, the holding interval can be further increased regardless of the thickness of the pinch seal portion, and the pinch seal portion can be held with a relatively small force. .
That is, it is not necessary to apply much stress to the pinch seal portion, and there is little concern about the strength of the valve.

また、バルブにおけるピンチシール部との境界
部に上部ラグを止める突起を設け、上部ラグはこ
れを内側に傾けて前記突起に対し圧縮力を増して
保持するようにしたので応力を軽減でき、バルブ
破裂防止の効果が大である。 In addition, a protrusion for securing the upper lug is provided at the boundary with the pinch seal part of the valve, and the upper lug is tilted inward to increase the compressive force against the protrusion and hold the valve, reducing stress. It is highly effective in preventing rupture.

しかも、上下のラグにより、及び上部ラグをバ
ルブ軸に向つて斜めに配置しているので、バルブ
のピンチシール部は３次元的に弾力的に保持さ
れ、ガタを生ずることはほとんどない。 Furthermore, since the upper and lower lugs and the upper lug are arranged diagonally toward the valve axis, the pinch seal portion of the valve is held elastically in three dimensions, and there is almost no play.

あるいは上部ラグはそのカツト部分がガラス表
面にできるだけ当らないように、突起のみ押える
形状とすることが可能であり、よつてガラスの強
度を弱める心配はないのである。 Alternatively, the upper lug can be shaped to press only the protrusion so that the cut portion does not touch the glass surface as much as possible, so there is no need to worry about weakening the glass.

[Brief explanation of the drawing]

第１図はこの考案に係る口金付き電球の斜視
図、第２図と第３図は同前の要部を横及び縦に切
断した断面図、第４図はバルブのピンチシール部
を示した正面図である。第５図と第６図は従来の
口金プレートを示した斜視図である。１……バルブ、２……口金プレート、３……上
部ラグ、４……下部ラグ、６……ピンチシール
部、７，８……突起。 Figure 1 is a perspective view of the light bulb with a base according to this invention, Figures 2 and 3 are sectional views taken horizontally and vertically of the main parts of the same, and Figure 4 shows the pinch seal part of the bulb. It is a front view. 5 and 6 are perspective views showing a conventional base plate. 1... Valve, 2... Mouth plate, 3... Upper lug, 4... Lower lug, 6... Pinch seal portion, 7, 8... Protrusion.

Claims

[Claims for Utility Model Registration] A pinch seal portion with a substantially rectangular cross section is provided at the rear end of the valve, and the pinch seal portion is inserted into an opening between lugs formed by punching out a flat metal cap plate. In a light bulb with a base, the base plate has four upper lugs bent upward and two lower lugs bent downward, each of which is arranged symmetrically, and the upper lugs are oriented toward the bulb axis. It is arranged diagonally, and on the other hand, there is a protrusion that stops the upper lug at the boundary with the pinch seal part of the valve, and a protrusion that stops the lower lug below both sides of the pinch seal part. A light bulb with a base.