JPH0121502Y2 - - Google Patents
Info
- Publication number
- JPH0121502Y2 JPH0121502Y2 JP1983076596U JP7659683U JPH0121502Y2 JP H0121502 Y2 JPH0121502 Y2 JP H0121502Y2 JP 1983076596 U JP1983076596 U JP 1983076596U JP 7659683 U JP7659683 U JP 7659683U JP H0121502 Y2 JPH0121502 Y2 JP H0121502Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- protrusions
- cover body
- positions
- holding cylinder
- 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.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は半割り円筒状の合成樹脂製カバー本体
の分割個所の外側縁に係合片を対設し、該各係合
片を介して分割個所を拡開させ架空電線に設けら
れた充電部に被着するようにしたチヤツク式スリ
ーブカバーに関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides engaging pieces opposite to each other on the outer edges of the divided parts of a half-split cylindrical synthetic resin cover body. This invention relates to a chuck-type sleeve cover in which the split portion is expanded to cover a live part provided on an overhead electric wire.
［従来の技術とその問題点］
従来から知られるこの種のチヤツク式スリーブ
カバーでは、充電部の両端で絶縁電線を保持させ
る保持筒の水密を保持させるのが難しいものであ
り、これを水密を保たせ、また、使用時に風に煽
られるなどの事由でカバーが摺動するのを阻止さ
せるのに、該カバーの両方の端部と絶縁電線とに
跨がらせて夫々に絶縁テープを巻回固定させる端
末処理をしている。しかしながら該絶縁テープが
経済的に劣化して剥離し、カバーを摺動させて充
電部を露出し、該カバーの絶縁機能を果たせなく
なる欠点があつた。[Prior art and its problems] With this type of chuck-type sleeve cover that has been known in the past, it is difficult to maintain watertightness of the holding cylinder that holds the insulated wire at both ends of the live part. Insulating tape can be wrapped around both ends of the cover and the insulated wire to maintain the cover in place and to prevent the cover from sliding due to factors such as being fanned by the wind during use. I am processing the terminal to fix it. However, the insulating tape deteriorates economically and peels off, causing the cover to slide and exposing the live parts, making it impossible for the cover to perform its insulating function.
このため電線の接続部や端末の被覆保護のため
に絶縁テープを巻回固定することを止めて絶縁カ
バーを用いるようにしたものとして、例えば実公
昭46−24978号公報「ケーブル分岐部分のカバー」
或いは実公昭48−27735号公報「電線接続部の絶
縁カバー」がある。ここで、これの絶縁カバーは
共に「柔軟な合成樹脂等の２つの絶縁部材（樋状
部材）を竹割り形状に形成したうえ両絶縁部材
（樋状部材）を割り方向の端面でヒンジ部分（リ
ブ）により一体に連結した形状よりなる。そして
前記ヒンジ部分（リブ）を折り曲げたときに抱き
合わせ関係において絶縁部材が導体を包むように
構成される。そして両絶縁部材の両端面（接合
縁）長手方向に係合片（ボタン）と該係合片が係
着する係合孔（ボタン孔）とを穿設して構成した
ものである。しかしかかる両者の構成によれば導
線の接続部等を一方の絶縁カバー内に収容した後
で他方の絶縁カバーを被い前記小さな係合孔に係
合片（ボタン）を挿し込んで係合する必要がある
ため取付作業に手間がかかり、高所では危険でも
ある。またかかる係合は係合孔にボタン等を挿し
込むだけであるため結合が胞弱であり、係合孔に
係止片が常時密着して隙間なく係合するとは限ら
ず、強風や鳥獣等があたつて衝撃、加圧が加わる
と、使用中に該係合が緩み、隙間が生ずる。この
結果絶縁カバーの側面係合部から比較的短期間で
雨水等がカバー内に侵入し、内部の電線等が腐蝕
するという欠陥がある。 For this reason, in order to protect the connection parts and terminals of electric wires, an insulating cover is used instead of wrapping and fixing insulating tape, for example, in Japanese Utility Model Publication No. 46-24978, ``Cable branch cover''.
Alternatively, there is Japanese Utility Model Publication No. 48-27735 entitled ``Insulating cover for electric wire connection section''. Here, the insulating cover for this is made of two insulating members (trough-like members) made of flexible synthetic resin, etc. formed into a split bamboo shape, and both insulating members (trough-like members) are joined at the end face in the splitting direction at the hinge part ( When the hinge portion (rib) is bent, the insulating member wraps around the conductor in a tying relationship.Both end faces (joining edges) of both insulating members are connected in the longitudinal direction. An engaging piece (button) and an engaging hole (button hole) into which the engaging piece engages are bored in the housing. It is necessary to insert the engagement piece (button) into the small engagement hole and insert the engagement piece (button) into the small engagement hole. In addition, since such engagement involves simply inserting a button or the like into the engagement hole, the connection is weak, and the locking piece does not always fit tightly into the engagement hole without leaving a gap. If shock or pressure is applied due to exposure to animals, animals, etc., the engagement will loosen during use, creating a gap.As a result, rainwater, etc. can enter the cover from the side engagement part of the insulating cover in a relatively short period of time. However, there is a defect in that the internal electric wires etc. corrode.
そこで本考案は取付簡易なうえに強固な構造を
もち、カバー本体の収容部内の充電部の摺動を阻
止すると共に、カバー内部を緊密に閉止して密閉
状にでき、雨水等の侵入を防止しうるチヤツク式
スリーブカバーの提供を目的とするものであり、
合成樹脂製の弾性の円筒体を長手方向に分割して
半割り円筒状のカバー本体を分割個所で開閉自在
なるように形成し、該カバー本体は該分割個所の
外側縁に一対の係合片を対設して両係合片をその
弾性を利用して先端の突条により係脱自在にかつ
水密状に係合せしめ、該カバー本体の内部の略中
央にスリーブを被着した充電部を収容する収容部
を設けると共に該充電部の左右両側に絶縁電線の
保持筒を夫々連設し、さらに該カバー本体の内側
壁には収納部の左右両端位置に夫々突部を設けて
充電部のストツパーを形成すると共に各保持筒の
外側寄り位置と内側寄り位置とに夫々複数の突部
を周回状にしかも保持筒の内側のものと外側のも
のとを円周方向に位置を違えて設けて電線の外周
面を挾みつける把持部を形成したものである。 Therefore, the present invention is easy to install and has a strong structure, which prevents the live part from sliding inside the housing part of the cover body, and also allows the inside of the cover to be tightly closed and sealed, preventing the intrusion of rainwater etc. The purpose is to provide a chuck-type sleeve cover that can be
An elastic cylindrical body made of synthetic resin is divided in the longitudinal direction to form a half-split cylindrical cover body that can be opened and closed at the divided point, and the cover body has a pair of engagement pieces on the outer edge of the divided point. are arranged opposite to each other, and the two engaging pieces are engaged with each other in a detachable and watertight manner by the protrusion at the tip by utilizing their elasticity, and a live part covered with a sleeve is placed approximately in the center of the inside of the cover body. In addition to providing a storage section for accommodating the charging section, holding cylinders for insulated wires are provided in series on both the left and right sides of the charging section, and protrusions are provided on the inner wall of the cover body at the left and right end positions of the storage section, respectively, to accommodate the charging section. In addition to forming a stopper, a plurality of protrusions are provided in a circumferential manner at the outer and inner positions of each holding cylinder, and the inner and outer parts of the holding cylinder are provided at different positions in the circumferential direction. A grip part is formed to hold the outer peripheral surface of the electric wire.
［作用］
カバー本体は相対する突条の係合を外して両係
合片をその弾性を利用して前後方向に拡げ、分割
個所を開かせ、その間隙を介して架設電線に設け
らた充電部に上方から被せて該充電部を収容部に
収めることができる。その後両係合片を再び合わ
せ、互いに押圧係合すれば双方の突条先端部の凹
凸部が長手方向に亘り緊密かつ強固に係合するた
め収容部内を簡単に密封状になしうる。このため
カバー内部に雨水等が侵入しない。[Function] The cover body disengages the opposing protrusions and expands both engaging pieces in the front and back direction using their elasticity, opening the split points and connecting the charging cables installed on the overhead wires through the gaps. The charging part can be housed in the housing part by covering the charging part from above. Thereafter, when the two engaging pieces are put together again and pressed into engagement with each other, the concave and convex portions of the tips of both protrusions are tightly and firmly engaged in the longitudinal direction, so that the interior of the housing can be easily sealed. This prevents rainwater from entering the inside of the cover.
充電部は収容部の左右両端に設けた突部がスト
ツパーの作用を果たし、摺動を阻止されて収ま
る。 The charging portion is housed in the housing portion by projections provided at both left and right ends that act as stoppers to prevent sliding.
また充電部の左右で絶縁電線は夫々保持筒に保
持され、さらに各保持筒の内外両側寄り位置にて
複数の突部により挾みつけられるようにしつかり
と把持される。このため使用中にスリーブカバー
が摺動、回動しない。 Further, the insulated wires are held by holding tubes on the left and right sides of the charging portion, and are firmly held by a plurality of protrusions at positions near both the inner and outer sides of each holding tube. Therefore, the sleeve cover does not slide or rotate during use.
［実施例］
以下に本考案の実施例を図面と共に説明する。
図において１は合成樹脂の円筒体を長手方向の一
側縁で直線状に分割して半割り状としたカバー本
体であり、該カバー本体１は分割個所２の外側端
縁に係合片３ａ，３ｂを対設している。そして一
方の係合片３ａには内側の中央部に先端に下向き
の鉤片を設けた突条４ａを設け、他方の係合片３
ｂには内側の下部に先端に上向きの鉤片を設けた
前記突条４ａに係脱自在に係合する突条４ｂを形
成する。[Examples] Examples of the present invention will be described below with reference to the drawings.
In the figure, reference numeral 1 denotes a cover body which is made into half by dividing a synthetic resin cylindrical body linearly along one side edge in the longitudinal direction. , 3b are installed oppositely. One of the engaging pieces 3a is provided with a protrusion 4a having a downward hook at the tip at the center of the inner side, and the other engaging piece 3
A protrusion 4b is formed on the inner lower part of the protrusion 4b, which detachably engages with the protrusion 4a, which has an upward hook at its tip.
該カバー本体１の内部には長手方向の略中央に
絶縁電線Ａ，Ａの端部で絶縁被覆Ｂを剥離して露
出させた導線Ｃ，Ｃに圧縮スリーブＤを被着して
締付固定させた充電部Ｅを収容する収容部５を設
け、該収容部５の左右両端に夫々テーパー部６，
６を介して絶縁電線Ａ，Ａの保持筒７，７を連設
する。 Inside the cover main body 1, a compression sleeve D is attached to the conductive wires C, which are exposed by peeling off the insulation coating B at the ends of the insulated wires A and A, approximately at the center in the longitudinal direction, and is tightened and fixed. A housing part 5 for housing the charging part E is provided, and tapered parts 6 and 6 are provided at both left and right ends of the housing part 5, respectively.
The holding cylinders 7, 7 for the insulated wires A, A are connected to each other via the insulated wires A, 6.
さらに、カバー本体１の内側壁には収容部５の
左右両側端位置で円周方向に等間隔に夫々３個所
ずつ突部８を設けて充電部Ｅのストツパーを形成
せしめ、また各保持筒７，７の外側寄り位置と内
側寄り位置とに夫々円周方向に等間隔に複数個の
突部９及び１０を設けて絶縁電線Ａ，Ａの周面に
接する把持部を形成する。この実施例では各保持
筒７の外側寄り位置に設けた突部９は半球状に、
また内側寄り位置に設けた突部１０は内側壁と常
に一定の高さを持つ畝状でかつ前記各突部９の対
向線上に切れ目がくるように形成している。な
お、この突部１０の分割個所２を跨いで設けたも
のは該分割個所２に合わせて切れ目を設けて開閉
動作を妨げることのないようにしている。 Further, on the inner wall of the cover main body 1, three protrusions 8 are provided at equal intervals in the circumferential direction at both left and right end positions of the accommodating part 5 to form stoppers for the charging part E, and each holding cylinder 7 A plurality of protrusions 9 and 10 are provided at equal intervals in the circumferential direction at outer and inner positions of the insulated wires A, 7, respectively, to form gripping portions that contact the circumferential surfaces of the insulated wires A, A. In this embodiment, the protrusion 9 provided at the outer side of each holding cylinder 7 has a hemispherical shape.
Further, the protrusions 10 provided at positions closer to the inner side are formed in the shape of a ridge that always has a constant height with respect to the inner wall, and are formed so that the cuts are on the opposing line of each of the protrusions 9. In addition, in the protrusion 10 that is provided across the dividing point 2, a cut is provided in line with the dividing point 2 so as not to hinder the opening/closing operation.
次に、このように形成された本考案のスリーブ
カバーの使用について説明するに、カバー本体１
は突条４ａ，４ｂの係合を外して係合片３ａ，３
ｂをその弾性を利用して互いに前後方向に拡げ分
割個所２を開かせ、その間隙を介して架設電線に
設けられた充電部Ｅを被せて該充電部Ｅを収容部
５に収めるようにして係合片３ａ，３ｂを合わ
せ、突条４ａ，４ｂを互いに押圧係合させれば、
第７図に示すように充電部Ｅは収容部５の左右両
端に設けた突部８，８がストツパーとなり摺動を
阻止されて収まり、また充電部Ｅの左右で絶縁電
線Ａ，Ａは夫々保持筒７，７に保持され、さらに
各保持筒７の内外両側寄り位置にて複数の突部９
及び１０により挾みつけられる状態にしつかりと
把持され、使用中にスリーブカバーが摺動したり
するのを防ぐことができる。 Next, to explain the use of the sleeve cover of the present invention formed in this way, the cover body 1
Disengage the protrusions 4a, 4b and remove the engagement pieces 3a, 3.
b are expanded in the front-rear direction using their elasticity to open the dividing point 2, and the live part E provided on the installed electric wire is placed over the gap so that the live part E is housed in the housing part 5. If the engaging pieces 3a and 3b are aligned and the protrusions 4a and 4b are pressed into engagement with each other,
As shown in FIG. 7, the live part E is accommodated by the protrusions 8, 8 provided on both the left and right ends of the housing part 5 as stoppers to prevent sliding, and the insulated wires A, A are connected to the left and right ends of the live part E, respectively. It is held by the holding cylinders 7, 7, and furthermore, a plurality of protrusions 9 are provided at positions close to both the inner and outer sides of each holding cylinder 7.
The sleeve cover is firmly held in a pinched state by the sleeve cover and 10, and can prevent the sleeve cover from sliding during use.
そこで、各保持筒７は内外両側寄り位置に設け
られた突部９及び１０が円周方向に位置を違えて
設けられているために、例えば作業中に保持筒７
と絶縁電線Ａの間に誤つてドライバー等を差込ん
だりしても内側の突部１０により進入が遮ぎられ
て感電事故を起こすようなことはない。 Therefore, since each holding cylinder 7 has protrusions 9 and 10 provided at positions closer to the inner and outer sides of the holding cylinder 7 at different positions in the circumferential direction, for example, the holding cylinder 7
Even if a screwdriver or the like is mistakenly inserted between the insulated wire A and the insulated wire A, the insertion will be blocked by the inner protrusion 10 and no electric shock will occur.
また、第９図以下に示したものは分岐型スリー
ブカバーとしての使用例であつて、この場合は第
１０図に示すように収容部５の右方では第３図の
ようにテーパー部６及び保持筒７を形成しないで
収容部５と同径の筒状とした分岐線保持部１１を
延設して形成し、さらに該分岐線保持部１１の内
側壁に水平状の突条１２，１２を対設し、この突
条１２によつて第１２図に示すように絶縁電線Ａ
と分岐線A′とを分離させて保持させるようにし
て使用する。 Moreover, the one shown in FIG. 9 and subsequent figures is an example of use as a branch type sleeve cover, and in this case, as shown in FIG. The branch line holding part 11 is formed by extending it into a cylindrical shape having the same diameter as the housing part 5 without forming the holding cylinder 7, and horizontal protrusions 12, 12 are provided on the inner wall of the branch line holding part 11. are installed opposite each other, and as shown in FIG.
and the branch line A' are kept separate and used.
［考案の効果］
以上に述べたように本考案によればカバー本体
をその係合部を拡げて充電部の上方からかぶせる
ようにして簡単に収容できるうえ、その密封にお
いても係合部先端の両突条を弾性を利用して係合
するだけでよく取付作業が容易かつ安全にできる
という利点がある。[Effects of the invention] As described above, according to the invention, the cover main body can be easily accommodated by expanding its engaging part and covering it from above the live part, and when sealing the cover body, the tip of the engaging part can be easily accommodated. There is an advantage that the installation work can be done easily and safely by simply engaging both protrusions using elasticity.
また該両係合片は弾性を利用して緊密に閉止さ
せられるためスリーブカバー内部を強固に密封で
き、強風などにあたつても雨水等の侵入を略完全
に防止できるという利点もある。 Furthermore, since both engaging pieces are tightly closed using elasticity, the inside of the sleeve cover can be tightly sealed, and there is also the advantage that the intrusion of rainwater etc. can be almost completely prevented even in strong winds.
さらに収容部及び把持筒内周に突設した突部に
より、充電部と電線はカバー内を摺動せず安定し
た状態で長期間使用できるという利点もある。 Furthermore, there is an advantage that the charging part and the electric wire can be used for a long period of time in a stable state without sliding inside the cover due to the protrusions provided on the housing part and the inner periphery of the gripping cylinder.
図は本考案の実施例に係わるもので第１図は正
面図、第２図は平面図、第３図は第２図のＸ−Ｘ
線断面図、第４図は第１図のＹ−Ｙ線断面図、第
５図は同上のＺ−Ｚ線断面図、第６図は右側面
図、第７図は使用状態を示す縦断面図、第８図は
使用状態を示す縦断側面図、第９図は分岐型スリ
ーブカバーとしての使用例を示す正面図、第１０
図は同上の断面図、第１１図は同上の右側面図、
第１２図は同上の使用状態を示す縦断正面図、第
１３図は同上の右側面図である。
１……カバー本体、２……分割個所、３ａ，３
ｂ……係合片、５……収容部、７，７……保持
筒、８，９，１０……突部、Ａ，Ａ……絶縁電
線、Ｄ……圧縮スリーブ、Ｅ……充電部。
The figures relate to the embodiment of the present invention; Fig. 1 is a front view, Fig. 2 is a plan view, and Fig. 3 is taken along line X-X in Fig. 2.
4 is a sectional view taken along the Y-Y line in FIG. 1, FIG. 5 is a sectional view taken along the Z-Z line of the same as above, FIG. 6 is a right side view, and FIG. 7 is a vertical sectional view showing the state of use. Figure 8 is a longitudinal sectional side view showing the state of use, Figure 9 is a front view showing an example of use as a branched sleeve cover, and Figure 10 is a front view showing an example of use as a branched sleeve cover.
The figure is a cross-sectional view of the same as above, FIG. 11 is a right side view of the same as above,
FIG. 12 is a longitudinal sectional front view showing the state of use of the same as the above, and FIG. 13 is a right side view of the same as the above. 1...Cover body, 2...Divided part, 3a, 3
b...Engagement piece, 5...Accommodating part, 7, 7...Holding tube, 8,9,10...Protrusion, A, A...Insulated wire, D...Compression sleeve, E...Charging part .
Claims (1)
て半割り円筒状のカバー本体を分割個所で開閉自
在なるように形成し、該カバー本体は該分割個所
の外側縁に一対の係合片を対設して両係合片をそ
の弾性を利用して先端の突条により係脱自在にか
つ水密状に係合せしめ、該カバー本体の内部の略
中央にスリーブを被着した充電部を収容する収容
部を設けると共に該充電部の左右両側に絶縁電線
の保持筒を夫々連設し、さらに該カバー本体の内
側壁には収納部の左右両端位置に夫々突部を設け
て充電部のストツパーを形成すると共に各保持筒
の外側寄り位置と内側寄り位置とに夫々複数の突
部を周回状にしかも保持筒の内側のものと外側の
ものとを円周方向に位置を違えて設けて電線の外
周面を挾みつける把持部を形成したことを特徴と
するチヤツク式スリーブカバー。 An elastic cylindrical body made of synthetic resin is divided in the longitudinal direction to form a half-split cylindrical cover body that can be opened and closed at the divided point, and the cover body has a pair of engagement pieces on the outer edge of the divided point. are arranged opposite each other, and the two engaging pieces are releasably and watertightly engaged by the protrusion at the tip by utilizing their elasticity, and a live part covered with a sleeve is placed approximately in the center of the inside of the cover main body. In addition to providing a storage section for accommodating the charging section, holding cylinders for insulated wires are provided in series on both the left and right sides of the charging section, and protrusions are provided on the inner wall of the cover body at both left and right end positions of the storage section, respectively, to accommodate the charging section. In addition to forming a stopper, a plurality of protrusions are provided in a circumferential manner at the outer and inner positions of each holding cylinder, and the inner and outer parts of the holding cylinder are provided at different positions in the circumferential direction. A chuck-type sleeve cover characterized by forming a gripping part that grips the outer peripheral surface of an electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7659683U JPS59181590U (en) | 1983-05-20 | 1983-05-20 | Chuck type sleeve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7659683U JPS59181590U (en) | 1983-05-20 | 1983-05-20 | Chuck type sleeve cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59181590U JPS59181590U (en) | 1984-12-04 |
| JPH0121502Y2 true JPH0121502Y2 (en) | 1989-06-27 |
Family
ID=30206641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7659683U Granted JPS59181590U (en) | 1983-05-20 | 1983-05-20 | Chuck type sleeve cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59181590U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5250353B2 (en) * | 2008-09-18 | 2013-07-31 | 中国電力株式会社 | Insulation cover for overhead distribution lines, assembly structure of overhead distribution lines, and installation method of insulation covers for overhead distribution lines |
| JP5479846B2 (en) * | 2009-10-28 | 2014-04-23 | 古河電工パワーシステムズ株式会社 | Insulated wire cover |
| JP5257701B2 (en) * | 2009-12-01 | 2013-08-07 | 住友電装株式会社 | Terminal protection cap for connectors |
| JP2013229165A (en) * | 2012-04-25 | 2013-11-07 | Auto Network Gijutsu Kenkyusho:Kk | Waterproof structure of electric wire connecting portion |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4827735U (en) * | 1971-08-09 | 1973-04-04 |
-
1983
- 1983-05-20 JP JP7659683U patent/JPS59181590U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4827735U (en) * | 1971-08-09 | 1973-04-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59181590U (en) | 1984-12-04 |
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