JP3667996B2 - Waterproof socket - Google Patents

Waterproof socket Download PDF

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Publication number
JP3667996B2
JP3667996B2 JP15785798A JP15785798A JP3667996B2 JP 3667996 B2 JP3667996 B2 JP 3667996B2 JP 15785798 A JP15785798 A JP 15785798A JP 15785798 A JP15785798 A JP 15785798A JP 3667996 B2 JP3667996 B2 JP 3667996B2
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Japan
Prior art keywords
washer
waterproof
lamp
waterproof ring
socket
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Expired - Fee Related
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JP15785798A
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Japanese (ja)
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JPH11354235A (en
Inventor
伸通 西浜
鉱一 田中
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

【0001】
【発明の属する技術分野】
この発明は、例えば直管形蛍光灯用照明器具灯などに適用される防水ソケットに関するものである。
【0002】
【従来の技術】
防水リングと防水パッキンの前端部間へ摩擦低減のために平板の座金を使用することは知られている(例えば、実公平7-3592号、実開昭63-26990号、実開昭58-135884 号)。
図13から図15は従来の突き合わせ式のソケットを示している。ソケット本体1にランプLを装着する場合、ランプLに防水リング2および座金4、防水パッキン3を挿通しておき、まずランプLをソケット本体1に装着した後、防水リング2のねじ部10をソケット本体のねじ部11に押付け回転しながら螺合していくと、防水パッキン3にランプ軸方向に沿って圧縮力が加えられ、防水パッキン3の一端は防水リング2の前端部12に座金4を挾みながら密接し、他端はソケット本体1に密接する。また防水パッキン3の前端部には薄肉部9を形成し、前述の圧縮力により押し出されてランプLの管壁に密接している。したがって、防水パッキン3はソケット本体1とランプLとの間を水が浸入しないように封鎖している。
【0003】
防水リング2を回転しながら締付けるとき、ねじ部10およびねじ筒部11の螺合によりランプLの軸方向に沿ってソケット本体1に接近する向きに移動し防水パッキン3を押して軸方向に沿う力が加わり、防水パッキン1の前端の薄肉部9がランプ軸に垂直方向へ押し出され、ランプLを回転する方向に力が作用する。一方、防水パッキン3のソケット本体1と防水リング2の前端部の密接部分では防水リング2の回転方向の力が、防水パッキン3を回転する方向へ作用し摩擦抵抗により防水リング2の回転方向の締付け力を増加させる。防水パッキン3はゴム材等の弾性材料で形成されているため摩擦係数が金属や樹脂同士に比べて大きい。
【0004】
そこで、この摩擦を低減するために、防水リング2と防水パッキン3の前端部間へ金属もしくは樹脂製の座金4を使用している。
【0005】
【発明が解決しようとする課題】
しかし、防水リング2の前端部と座金4の当接面は平面接触となっているため、摩擦抵抗の低減が十分ではない。
上記従来例の突き合わせ式のソケットではランプLの装着部の栓受体5がランプ軸方向に可動するが、回転方向には動かないため、大きな締付け力が必要となる。
【0006】
また図16に示す回転式ソケットでは、栓受体に相当するランプ装着部の回転子がランプピンの回動に伴って回転可能であるため、従来のような座金4では防水リング2の締付けにより防水パッキン3を介して作用する回転力がランプLのソケット本体1への装着力よりも上回るとランプL自身が導通したランプ装着状態から回転し導通不良を生じるおそれがあり、不点もしくは接触不良により、ランプLの性能に悪影響を与えることがある。
【0007】
したがって、この発明の目的は、ランプ装着の際の防水リングの締付けが容易にできる防水ソケットを提供することである。
【0008】
【課題を解決するための手段】
請求項1記載の防水ソケットは、ねじ筒部を有しこのねじ筒部の内側にランプのランプピンを装着するランプピン装着部を有するソケット本体と、前記ランプを挿通する略円筒状であって前記ねじ筒部にねじ込むねじ部を後端部に有し前端部に内向き鍔状の座金当接部を有する防水リングと、この防水リング内に嵌合して前記ランプを挿通可能な略円筒状であって前記ねじ部を前記ねじ筒部にねじ込むことにより前端部が前記座金当接部に押されて内周側が前記ランプの周面に密着するとともに後端部が前記ソケット本体に密着する防水パッキンと、この防水パッキンの前端部と前記防水リングの前記座金当接部との間に介在されて前記座金当接部に線接触する座金とを備え、前記座金は前記防水パッキンの前端が内側に当接する皿座金であり、前記皿座金を前記座金当接部に案内するガイドを前記座金当接部に設けたものである。
【0009】
請求項1記載の防水ソケットによれば、座金が防水リングの前端部に例えば内周縁部または外周縁部により線接触するように構成したため、摩擦面を減らすことができ、ランプ装着時の防水リングの締付けにより生じる回転方向の力を大幅に低減でき、防水パッキンを介してランプを回転する方向に作用する力も大幅に減り、回転式ソケットでもランプの装着作業において防水リングの締付け操作が容易でランプの共回りを防止できる。
【0010】
請求項2記載の防水ソケットは、請求項1において、前記座金および前記座金当接部のいずれか一方を傾斜面とし他方をランプ軸に直角な平面としたものである。
請求項2記載の防水ソケットによれば、請求項1と同様な効果がある。
請求項3記載の防水ソケットは、請求項1において、前記座金および前記座金当接部をそれぞれ互いに傾斜角の異なる傾斜面としたものである。
【0011】
請求項3記載の防水ソケットによれば、請求項1と同様な効果がある。
【0012】
【発明の実施の形態】
この発明の第1の実施の形態を図1から図4により説明する。すなわち、この防水ソケットは回転式ソケットであり、ソケット本体1と、防水リング2と、防水パッキン3と、座金4とを有する。
ソケット本体1は、ねじ筒部11を有し、このねじ筒部11の内側にランプLのランプピンPを装着するランプピン装着部15を有する。ねじ筒部11にはランプピン挿入溝11aを有し、ランプピン装着部15はランプピン(図示せず)の側面に接触する導電端子(図示せず)を有し、この導電端子を被覆する回転子5をソケット本体1に回転自在に取付け、回転子5にランプピン挿入溝11aに連通するランプピン挿通溝5aを設けている。このソケット本体1は、ランプピンをランプピン挿入溝11aを通してランプピン挿通溝5aに通しランプピンを回動することにより回転子5をともに回転してランプピンを導電端子に接触させ給電する。
【0013】
防水リング2は、ランプLを挿通する略円筒状であってねじ筒部11にねじ込むねじ部10を後端部に有し、前端部に内向き鍔状の座金当接部12を有する。実施の形態ではランプ径が比較的小であるため、中間に段部2aを設けて前端側を小径にしている。また座金当接部12は傾斜面に形成し、その傾斜面の後端側に傾斜ガイド19を設け、座金当接部12に座金4を収まりやすくしている。
【0014】
防水パッキン3は、防水リング2内に嵌合してランプLを挿通可能な略円筒状であって、ねじ部10をねじ筒部11にねじ込むことにより前端部が座金当接部12に押されて内周側がランプLの周面に密着するとともに後端部がソケット本体1に密着する。実施の形態では防水リング2とほぼ同様に中間に段部3aを設けて前端側を小径にし、さらに防水パッキン3の前端部の径をやや小に細めており、その前端部の内周縁をランプ密着部16としている。防水パッキン3の後端部はその端縁に円冠状に凸部3bを形成して回転時の摩擦抵抗を低減するためソケット本体1の底面にほぼ線接触するようにしている。17は段部3aに設けられてねじ部10に係合する外鍔部である。
【0015】
座金4は、防水パッキン3の前端部と防水リング2の前端部との間に介在されて座金当接部12に線接触する。実施の形態では、金属または樹脂とくに防水リングより硬い樹脂を用いて例えば略円錐台筒状の皿座金に形成され、座金4および座金当接部12をそれぞれ互いに傾斜角の異なる傾斜面としている。角度差はA1 であり、ランプ軸に対する傾斜角は座金当接部12の方が大きくしてあり、座金4の内周縁部が座金当接部12に線接触している。
【0016】
この実施の形態は、防水パッキン3を防水リング2に挿入し、防水パッキン3をランプLに挿通し、ランプピンをランプ装着部15に装着し、防水リング2をソケット本体1のねじ筒部11にねじ込む。防水リング2のねじ部10のねじ込みにより防水パッキン3の前端部が座金4に押され、座金4が傾斜しているため、防水パッキン3の前端部のランプ密着部16をランプLの周面に押付け、密接しながら防水パッキン3の後端部をソケット本体1に密接し、これによって防水が達成される。
【0017】
この実施の形態によれば、防水リング2と防水パッキン3の前端部の間へ摩擦低減のために使用する座金4を皿座金の傾斜面を利用しこの傾斜面とこれに当接する防水リング2の前端部の座金当接部12の傾斜面に角度差A1 を設けることで、従来の面接触から円周状の線接触になり、皿座金には金属もしくは防水リング2の樹脂より硬い材質で形成することで、摩擦を低減し防水リング2とソケット本体1のねじ部10を螺合しながら締めつける時に作用する回転方向の力の影響を、防水リング2と座金4間、座金4と防水パッキン3の間の摩擦の違いを利用して、防水リング2と座金4が先述の方法で摩擦を低減しているため、防水リング2と座金4がすべりやすくなり、防水パッキン3への回転力の影響を大幅に減らすことができる。その結果、回転式ソケットにおいても防水リング2の締付け操作が容易で、ランプLの共回りを防止することができ、ランプLの接触不良によるランプ性能への悪影響を及ぼすことを防止できる。
【0018】
また座金4を皿座金にしたことで、同じ板厚の平座金に比べ強度が大きいので変形しにくく、金属材料の場合、錆防止のためめっき処理を施すがこのめっきの時にも熱処理による変形防止と、座金同士の重なりによるめっき不良の低減も、可能となる。
さらに皿座金の傾斜面が防水リング2への組み込み時のガイドとなるだけでなく、防水パッキン3の前端部の皿座金への誘いとしても機能し、防水リング2、座金4、防水パッキン3の組み込み時の位置合わせが容易になる。
【0019】
座金当接部12に傾斜ガイド19を設けると、防水リング2内の座金当接部12に座金4を傾きなく容易に組み込むことができる。
図5は第1の実施の形態の変形形態であり、座金4の外周縁が座金当接部12に線接触で当接するように、軸線に対する傾斜角度を設定し、その傾斜角の差B2 としている。
【0020】
図6はその別の変形形態であり、座金4は第1の実施の形態と同様に内周縁部が座金当接部12に線接触するが、防水リング2の座金当接部12を軸線に対して傾斜せずに軸線に直角な平面に形成し、座金当接部12に連続する防水リング2の内周面に座金4を収まりやすくする傾斜ガイド19を設けている。
この発明の第2の実施の形態を図7から図9に示す。すなわち、この防水ソケットは、第1の実施の形態と比べてランプLの径が大きい場合であり、防水リング2および防水パッキン3ともに前端側が小径になってなく中間の内周側に段部のない円筒形に形成されている。また防水リング2の前端部の座金当接部12は軸線に対して傾斜し、座金4は皿座金を用いているが、座金4の外周縁部が座金当接部12に線接触するように傾斜角度を異ならせている。その他は第1の実施の形態と同様である。
【0021】
図10は第2の実施の形態の変形形態であり、防水リング2の座金当接部12と座金4の角度差B1 とするとともに、防水パッキン3の前端部の座金4に密接する部分に円冠状に凸部3cを形成して、座金4に対してほぼ線接触するようにしている。
図11は別の変形形態であり、座金当接部12と皿座金を用いた座金4の角度差A2 に異ならせて、座金4の内周縁部を座金当接部12に線接触している。
【0022】
図12はさらに別の変形形態であり、座金当接部12を軸線に対して直角にし、座金当接部12に当接する座金4を皿座金にして、座金4の内周縁部を座金当接部12に線接触している。
なお、これとは反対に座金当接部12を軸線に対して傾斜し、座金4を平座金にして座金4の周縁部を座金当接部12に線接触するようにしてもよい。
【0023】
【発明の効果】
請求項1記載の防水ソケットによれば、座金が防水リングの前端部に例えば内周縁部または外周縁部により線接触するように構成したため、摩擦面を減らすことができ、ランプ装着時の防水リングの締付けにより生じる回転方向の力を大幅に低減でき、防水パッキンを介してランプを回転する方向に作用する力も大幅に減り、回転式ソケットでもランプの装着作業において防水リングの締付け操作が容易でランプの共回りを防止できる。
【0024】
請求項2記載の防水ソケットによれば、請求項1と同様な効果がある。
請求項3記載の防水ソケットによれば、請求項1と同様な効果がある。
【図面の簡単な説明】
【図1】この発明の第1の実施の形態を示し、(a)は一部破断側面図、(b)はその正面図である。
【図2】分解側面図である。
【図3】分解斜視図である。
【図4】(a)は防水リングの半断面側面図、(b)はその部分拡大図である。
【図5】第1の実施の形態の変形形態を示し、(a)は防水リングの半断面側面図、(b)はその部分拡大図である。
【図6】第1の実施の形態のさらに別の変形形態を示し、(a)は防水リングの半断面側面図、(b)はその部分拡大図である。
【図7】第2の実施の形態を示し、(a)は一部破断側面図、(b)はその正面図である。
【図8】分解側面図である。
【図9】分解斜視図である。
【図10】第2の実施の形態の変形形態を示し、 (a)は防水リングの半断面側面図、(b)はその部分拡大図である。
【図11】第2の実施の形態の別の変形形態を示し、(a)は防水リングの半断面側面図、(b)はその部分拡大図である。
【図12】第2の実施の形態のさらに別の変形形態を示し、(a)は防水リングの半断面側面図、(b)はその部分拡大図である。
【図13】従来例を示し、(a)は一部破断側面図、(b)はその正面図である。
【図14】その分解側面図である。
【図15】(a)は防水リングのねじ込み前の一部破断側面図、(b)は防水リングの側面図である。
【図16】回転式ソケットの防水リングを示し、(a)はその防水リングのねじ込み前の一部破断側面図、(b)は防水リングの側面図である。
【符号の説明】
1 ソケット本体
2 防水リング
3 防水パッキン
4 座金
10 ねじ部
11 ねじ筒部
12 座金当接部
15 ランプピン装着部
L ランプ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof socket applied to, for example, a lighting fixture for a straight tube fluorescent lamp.
[0002]
[Prior art]
It is known to use a flat washer for reducing friction between the waterproof ring and the front end of the waterproof packing (eg, Japanese Utility Model 7-3592, Japanese Utility Model Sho 63-26990, Japanese Utility Model 58- 135884).
13 to 15 show a conventional butt socket. When the lamp L is attached to the socket body 1, the waterproof ring 2, the washer 4 and the waterproof packing 3 are inserted into the lamp L. After the lamp L is first attached to the socket body 1, the screw portion 10 of the waterproof ring 2 is attached. When the screw is engaged with the threaded portion 11 of the socket body while being pressed and rotated, a compressive force is applied to the waterproof packing 3 along the lamp axis direction, and one end of the waterproof packing 3 is attached to the front end 12 of the waterproof ring 2 with a washer 4. The other end is in close contact with the socket body 1. Further, a thin portion 9 is formed at the front end portion of the waterproof packing 3 and is pushed out by the aforementioned compressive force so as to be in close contact with the tube wall of the lamp L. Therefore, the waterproof packing 3 is sealed so that water does not enter between the socket body 1 and the lamp L.
[0003]
When the waterproof ring 2 is tightened while rotating, the screw portion 10 and the screw tube portion 11 are screwed together to move in the direction of approaching the socket body 1 along the axial direction of the lamp L and push the waterproof packing 3 to force along the axial direction. As a result , the thin-walled portion 9 at the front end of the waterproof packing 1 is pushed out in the direction perpendicular to the lamp axis, and a force acts in the direction of rotating the lamp L. On the other hand, the force in the rotational direction of the waterproof ring 2 acts in the direction of rotating the waterproof packing 3 at the close contact portion between the socket body 1 and the waterproof ring 2 of the waterproof packing 3 and the rotational direction of the waterproof ring 2 due to frictional resistance. Increase tightening force. Since the waterproof packing 3 is formed of an elastic material such as a rubber material, the coefficient of friction is larger than that of metal or resin.
[0004]
Therefore, in order to reduce this friction, a metal or resin washer 4 is used between the waterproof ring 2 and the front end of the waterproof packing 3.
[0005]
[Problems to be solved by the invention]
However, since the front end portion of the waterproof ring 2 and the contact surface of the washer 4 are flat contact, the frictional resistance is not sufficiently reduced.
In the butt socket of the conventional example, the plug receptacle 5 of the mounting portion of the lamp L is movable in the lamp axis direction, but does not move in the rotation direction, so a large tightening force is required.
[0006]
Further, in the rotary socket shown in FIG. 16, the rotor of the lamp mounting portion corresponding to the plug receptacle can be rotated in accordance with the rotation of the lamp pin, so that the conventional washer 4 is waterproofed by tightening the waterproof ring 2. If the rotational force acting through the packing 3 exceeds the mounting force of the lamp L to the socket body 1, the lamp L itself may rotate from the lamp mounting state in which the lamp L is conducted and may cause poor conduction. , The performance of the lamp L may be adversely affected.
[0007]
Accordingly, an object of the present invention is to provide a waterproof socket that can easily tighten a waterproof ring when a lamp is mounted.
[0008]
[Means for Solving the Problems]
The waterproof socket according to claim 1 has a socket body having a screw tube portion and a lamp pin mounting portion for mounting a lamp pin of a lamp inside the screw tube portion, and a substantially cylindrical shape through which the lamp is inserted, and the screw A waterproof ring having a threaded portion to be screwed into the cylindrical portion at the rear end portion and an inwardly hooked washer abutting portion at the front end portion, and a substantially cylindrical shape that fits into the waterproof ring and can be inserted through the lamp. A waterproof packing in which a front end portion is pushed by the washer contact portion by screwing the screw portion into the screw tube portion, and an inner peripheral side thereof is in close contact with the peripheral surface of the lamp and a rear end portion thereof is in close contact with the socket body. And a washer interposed between the front end portion of the waterproof packing and the washer abutting portion of the waterproof ring and in line contact with the washer abutting portion, and the washer has the front end of the waterproof packing inside. It is a plate washer that comes into contact , It is provided with a guide for guiding the dish washer to the washer abutting portion to the washer abutting portion.
[0009]
According to the waterproof socket of claim 1, since the washer is configured to be in line contact with the front end portion of the waterproof ring by, for example, the inner peripheral edge or the outer peripheral edge, the friction surface can be reduced, and the waterproof ring when the lamp is mounted The force in the rotating direction generated by tightening the lamp can be greatly reduced, and the force acting in the direction of rotating the lamp via the waterproof packing is greatly reduced. Even with a rotary socket, the waterproof ring can be easily tightened in the lamp mounting operation. Can be prevented.
[0010]
A waterproof socket according to a second aspect is the waterproof socket according to the first aspect, wherein one of the washer and the washer contact portion is an inclined surface and the other is a plane perpendicular to the lamp shaft.
The waterproof socket according to claim 2 has the same effect as that of claim 1.
A waterproof socket according to a third aspect is the waterproof socket according to the first aspect, wherein the washer and the washer contact portion are inclined surfaces having different inclination angles.
[0011]
According to the waterproof socket of the third aspect, the same effect as in the first aspect is obtained.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. That is, this waterproof socket is a rotary socket, and has a socket body 1, a waterproof ring 2, a waterproof packing 3, and a washer 4.
The socket body 1 has a screw tube portion 11, and has a lamp pin mounting portion 15 for mounting the lamp pin P of the lamp L inside the screw tube portion 11. The screw cylinder portion 11 has a lamp pin insertion groove 11a, and the lamp pin mounting portion 15 has a conductive terminal (not shown) that contacts the side surface of the lamp pin (not shown), and the rotor 5 that covers the conductive terminal. Is attached to the socket body 1 in a rotatable manner, and the rotor 5 is provided with a lamp pin insertion groove 5a communicating with the lamp pin insertion groove 11a. The socket body 1 feeds power by bringing the lamp pin through the lamp pin insertion groove 11a and the lamp pin insertion groove 5a and rotating the lamp pin to rotate the rotor 5 together so that the lamp pin contacts the conductive terminal.
[0013]
The waterproof ring 2 has a substantially cylindrical shape through which the lamp L is inserted, and has a screw portion 10 to be screwed into the screw tube portion 11 at the rear end portion, and has an inwardly hooked washer contact portion 12 at the front end portion. In the embodiment, since the lamp diameter is relatively small, a step portion 2a is provided in the middle so that the front end side has a small diameter. The washer abutting portion 12 is formed on the inclined surface, only setting the inclined guide 19 on the rear end side of the inclined surface, and easy to fit the washer 4 to the washer abutting portion 12.
[0014]
The waterproof packing 3 has a substantially cylindrical shape that can be fitted into the waterproof ring 2 and can be inserted into the lamp L, and the front end portion is pushed by the washer contact portion 12 by screwing the screw portion 10 into the screw tube portion 11. The inner peripheral side is in close contact with the peripheral surface of the lamp L and the rear end is in close contact with the socket body 1. In the embodiment, a step portion 3a is provided in the middle in substantially the same manner as the waterproof ring 2, the front end side is made smaller in diameter, and the diameter of the front end portion of the waterproof packing 3 is made slightly smaller. The contact portion 16 is used. The rear end portion of the waterproof packing 3 is formed with a crown-shaped convex portion 3b at the end edge thereof so as to be substantially in line contact with the bottom surface of the socket body 1 in order to reduce frictional resistance during rotation. Reference numeral 17 denotes an outer flange portion that is provided on the step portion 3 a and engages with the screw portion 10.
[0015]
The washer 4 is interposed between the front end portion of the waterproof packing 3 and the front end portion of the waterproof ring 2 and makes line contact with the washer contact portion 12. In the embodiment, a metal or resin, in particular, a resin harder than a waterproof ring is used to form, for example, a substantially truncated cone dish washer, and the washer 4 and the washer abutting portion 12 are inclined surfaces having different inclination angles. Angular difference is A 1, the inclination angle with respect to the lamp axis is Yes and larger in the washer abutting portion 12, the inner peripheral edge of the washer 4 is in line contact to the washer abutting portion 12.
[0016]
In this embodiment, the waterproof packing 3 is inserted into the waterproof ring 2, the waterproof packing 3 is inserted into the lamp L, the lamp pin is attached to the lamp mounting portion 15, and the waterproof ring 2 is attached to the screw cylinder portion 11 of the socket body 1. Screw in. Since the front end portion of the waterproof packing 3 is pushed by the washer 4 by the screwing of the screw portion 10 of the waterproof ring 2, and the washer 4 is inclined, the lamp contact portion 16 at the front end portion of the waterproof packing 3 is placed on the peripheral surface of the lamp L. The rear end portion of the waterproof packing 3 is brought into close contact with the socket body 1 while being pressed and in close contact, thereby achieving waterproofing.
[0017]
According to this embodiment, the washer 4 used for reducing friction between the waterproof ring 2 and the front end portion of the waterproof packing 3 is utilized by using the inclined surface of the dish washer, and the inclined ring and the waterproof ring 2 in contact with the inclined surface. By providing the angle difference A 1 on the inclined surface of the washer abutting portion 12 at the front end, the surface contact is changed to the circumferential line contact, and the plate washer is made of a material harder than the metal or resin of the waterproof ring 2 Thus, the effect of the rotational force acting when tightening the threaded portion 10 of the waterproof ring 2 and the socket body 1 by screwing is reduced between the waterproof ring 2 and the washer 4, and the washer 4 is waterproof. Using the difference in friction between the packings 3, the waterproof ring 2 and the washer 4 reduce the friction by the above-described method. Therefore, the waterproof ring 2 and the washer 4 easily slip, and the rotational force to the waterproof packing 3 is reduced. Can significantly reduce the impact of As a result, the tightening operation of the waterproof ring 2 is easy even in the rotary socket, the co-rotation of the lamp L can be prevented, and adverse effects on the lamp performance due to the poor contact of the lamp L can be prevented.
[0018]
In addition, because the washer 4 is a flat washer, it is stronger than a flat washer of the same thickness, so it is difficult to deform. In the case of metal materials, plating treatment is performed to prevent rust, but deformation is also prevented by heat treatment at the time of plating. In addition, it is possible to reduce plating defects due to overlapping of washers.
Further, the inclined surface of the washer not only serves as a guide when assembled into the waterproof ring 2, but also functions as an invitation to the dish washer at the front end of the waterproof packing 3, and the waterproof ring 2, washer 4, and waterproof packing 3 Positioning during installation is easy.
[0019]
If the inclined guide 19 is provided in the washer contact portion 12, the washer 4 can be easily incorporated into the washer contact portion 12 in the waterproof ring 2 without inclination.
FIG. 5 shows a modification of the first embodiment. The inclination angle with respect to the axis is set so that the outer peripheral edge of the washer 4 contacts the washer contact portion 12 by line contact, and the difference in inclination angle B 2 It is said.
[0020]
FIG. 6 shows another modification thereof, and the washer 4 is in line contact with the washer contact portion 12 as in the first embodiment, but the washer contact portion 12 of the waterproof ring 2 is used as an axis. On the other hand, an inclined guide 19 that is formed on a plane perpendicular to the axis without being inclined and that allows the washer 4 to be easily accommodated on the inner peripheral surface of the waterproof ring 2 that is continuous with the washer contact portion 12 is provided.
A second embodiment of the present invention is shown in FIGS. That is, this waterproof socket is a case where the diameter of the lamp L is larger than that of the first embodiment, and the front end side of both the waterproof ring 2 and the waterproof packing 3 does not have a small diameter, and a stepped portion is formed on the inner peripheral side of the middle. There is no cylindrical shape. The washer abutting portion 12 at the front end of the waterproof ring 2 is inclined with respect to the axis, and the washer 4 uses a dish washer, but the outer peripheral edge of the washer 4 is in line contact with the washer abutting portion 12. The inclination angle is different. Others are the same as in the first embodiment.
[0021]
FIG. 10 shows a modification of the second embodiment, in which the angle difference B 1 between the washer abutting portion 12 of the waterproof ring 2 and the washer 4 is set at a portion close to the washer 4 at the front end portion of the waterproof packing 3. A convex portion 3 c is formed in a circular crown shape so as to make almost line contact with the washer 4.
FIG. 11 shows another modification, in which the inner peripheral edge of the washer 4 is brought into line contact with the washer abutting portion 12 in accordance with the angle difference A 2 between the washer abutting portion 12 and the washer 4 using a washer. Yes.
[0022]
FIG. 12 shows another modification, in which the washer abutting portion 12 is perpendicular to the axis, the washer 4 abutting against the washer abutting portion 12 is a dish washer, and the inner peripheral edge of the washer 4 is abutted against the washer. The part 12 is in line contact.
Alternatively, the washer contact portion 12 may be inclined with respect to the axis, and the washer 4 may be a flat washer so that the peripheral edge of the washer 4 is in line contact with the washer contact portion 12.
[0023]
【The invention's effect】
According to the waterproof socket of claim 1, since the washer is configured to come into line contact with the front end portion of the waterproof ring, for example, by the inner peripheral edge or the outer peripheral edge, the friction surface can be reduced, and the waterproof ring when the lamp is mounted. The rotational force generated by tightening the lamp can be greatly reduced, the force acting in the direction of rotating the lamp via the waterproof packing is also greatly reduced, and even with a rotary socket, the waterproof ring can be easily tightened in the lamp mounting operation. Can be prevented.
[0024]
The waterproof socket according to claim 2 has the same effect as that of claim 1.
According to the waterproof socket of the third aspect, the same effect as in the first aspect is obtained.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of the present invention, in which (a) is a partially broken side view, and (b) is a front view thereof.
FIG. 2 is an exploded side view.
FIG. 3 is an exploded perspective view.
4A is a half sectional side view of a waterproof ring, and FIG. 4B is a partially enlarged view thereof.
5A and 5B show a modification of the first embodiment, in which FIG. 5A is a half sectional side view of a waterproof ring, and FIG. 5B is a partially enlarged view thereof.
6A and 6B show still another modification of the first embodiment, in which FIG. 6A is a half sectional side view of a waterproof ring, and FIG. 6B is a partially enlarged view thereof.
7A and 7B show a second embodiment, in which FIG. 7A is a partially broken side view, and FIG. 7B is a front view thereof.
FIG. 8 is an exploded side view.
FIG. 9 is an exploded perspective view.
10A and 10B show a modification of the second embodiment, in which FIG. 10A is a half-sectional side view of a waterproof ring, and FIG. 10B is a partially enlarged view thereof.
11A and 11B show another modification of the second embodiment, in which FIG. 11A is a half sectional side view of a waterproof ring, and FIG. 11B is a partially enlarged view thereof.
12A and 12B show still another modification of the second embodiment, in which FIG. 12A is a half sectional side view of a waterproof ring, and FIG. 12B is a partially enlarged view thereof.
FIG. 13 shows a conventional example, (a) is a partially broken side view, and (b) is a front view thereof.
FIG. 14 is an exploded side view thereof.
15A is a partially cutaway side view of the waterproof ring before screwing, and FIG. 15B is a side view of the waterproof ring.
16A and 16B show a waterproof ring of a rotary socket, in which FIG. 16A is a partially broken side view of the waterproof ring before screwing, and FIG. 16B is a side view of the waterproof ring.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Socket body 2 Waterproof ring 3 Waterproof packing 4 Washer 10 Screw part 11 Screw cylinder part 12 Washer contact part 15 Lamp pin mounting part L Lamp

Claims (3)

ねじ筒部を有しこのねじ筒部の内側にランプのランプピンを装着するランプピン装着部を有するソケット本体と、前記ランプを挿通する略円筒状であって前記ねじ筒部にねじ込むねじ部を後端部に有し前端部に内向き鍔状の座金当接部を有する防水リングと、この防水リング内に嵌合して前記ランプを挿通可能な略円筒状であって前記ねじ部を前記ねじ筒部にねじ込むことにより前端部が前記座金当接部に押されて内周側が前記ランプの周面に密着するとともに後端部が前記ソケット本体に密着する防水パッキンと、この防水パッキンの前端部と前記防水リングの前記座金当接部との間に介在されて前記座金当接部に線接触する座金とを備え、前記座金は前記防水パッキンの前端が内側に当接する皿座金であり、前記皿座金を前記座金当接部に案内するガイドを前記座金当接部に設けた防水ソケット。A socket body having a screw tube portion and a lamp pin mounting portion for mounting a lamp pin of the lamp inside the screw tube portion; and a substantially cylindrical shape through which the lamp is inserted, and a screw portion screwed into the screw tube portion at a rear end A waterproof ring having an inward hook-shaped washer abutting portion at the front end, and a substantially cylindrical shape that can be fitted into the waterproof ring and into which the lamp can be inserted. A waterproof packing in which the front end is pushed by the washer abutting portion by screwing into the portion and the inner peripheral side is in close contact with the peripheral surface of the lamp and the rear end is in close contact with the socket body, and the front end of the waterproof packing A washer interposed between the washer abutting portion of the waterproof ring and in line contact with the washer abutting portion, wherein the washer is a dish washer with a front end of the waterproof packing abutting on the inside. The washer abutting part Waterproof socket provided with guide for guiding the washer abutting portion. 前記座金および前記座金当接部のいずれか一方を傾斜面とし他方をランプ軸に直角な平面とした請求項1記載の防水ソケット。The waterproof socket according to claim 1, wherein one of the washer and the washer contact portion is an inclined surface and the other is a plane perpendicular to the lamp axis. 前記座金および前記座金当接部をそれぞれ互いに傾斜角の異なる傾斜面とした請求項1記載の防水ソケット。The waterproof socket according to claim 1, wherein the washer and the washer contact portion are inclined surfaces having different inclination angles.
JP15785798A 1998-06-05 1998-06-05 Waterproof socket Expired - Fee Related JP3667996B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15785798A JP3667996B2 (en) 1998-06-05 1998-06-05 Waterproof socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15785798A JP3667996B2 (en) 1998-06-05 1998-06-05 Waterproof socket

Publications (2)

Publication Number Publication Date
JPH11354235A JPH11354235A (en) 1999-12-24
JP3667996B2 true JP3667996B2 (en) 2005-07-06

Family

ID=15658905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15785798A Expired - Fee Related JP3667996B2 (en) 1998-06-05 1998-06-05 Waterproof socket

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Country Link
JP (1) JP3667996B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8602803B2 (en) 2011-06-23 2013-12-10 Panasonic Corporation Waterproof socket and illumination apparatus
JP6281322B2 (en) * 2014-03-03 2018-02-21 岩崎電気株式会社 Explosion-proof lighting equipment

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