JPS61213806A - Photoelectric composite rotary connector - Google Patents

Photoelectric composite rotary connector

Info

Publication number
JPS61213806A
JPS61213806A JP5438785A JP5438785A JPS61213806A JP S61213806 A JPS61213806 A JP S61213806A JP 5438785 A JP5438785 A JP 5438785A JP 5438785 A JP5438785 A JP 5438785A JP S61213806 A JPS61213806 A JP S61213806A
Authority
JP
Japan
Prior art keywords
optical fiber
drum
rotary connector
main body
ring
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
Application number
JP5438785A
Other languages
Japanese (ja)
Inventor
Taro Aoki
太郎 青木
Kenichi Takahashi
賢一 高橋
Katsusuke Ikeda
池田 勝甫
Kazuhiro Honma
一宏 本間
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAIYO KAGAKU GIJUTSU CENTER
DDK Ltd
Original Assignee
KAIYO KAGAKU GIJUTSU CENTER
DDK Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KAIYO KAGAKU GIJUTSU CENTER, DDK Ltd filed Critical KAIYO KAGAKU GIJUTSU CENTER
Priority to JP5438785A priority Critical patent/JPS61213806A/en
Publication of JPS61213806A publication Critical patent/JPS61213806A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/3604Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To prevent surely the disconnection or the like of an optical fiber due to torsion and rotate certainly a photoelectric composite rotary connector on the same axis as a drum by forming the photoelectric composite rotary connector with a rotary connector for optical fiber connection and a rotary connector for electric wire connection. CONSTITUTION:A rotary connector A for optical fiber connection is constituted with a rotating body 5, which is fixed to a drum 1 coaxially by an attaching plate 9 and is rotated together with the drum 1 and holds a drum-side optical fiber 3a, and a free body 6 which has a holding tool 6d in the center of a body 6a connected to the rotating body 5 coaxially and freely rotatably and approximates the end face of an optical fiber 3b of the measuring instrument side held by this holding tool 6d to the end face of the optical fiber 3a and bunts and connects them. A connector B for electric wire connection is constituted with a rotating body 7 which is fixed to the outside peripheral surface of the rotating body 5 and is provided with a prescribed number of ring-shaped contacts 7a, to which the terminal of drum-side electric wires 4a are connected, on the outside peripheral surface and a free body 8 which has ring- shaped contacts 8a brought into contact with ring-shaped contacts 7a and external connection terminals 8b to which electric wires 4b of the measuring instrument side are connected.

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明はケーブル繰出し用回転ドラムに巻付けられた光
ファイバと、電線などを測定装置などに接続するための
光電複合ロータリコネクタに関するものである。
Detailed Description of the Invention [Objective of the Invention] (Industrial Application Field) The present invention relates to an optical fiber wound around a rotating drum for cable feeding, and a photoelectric composite rotary for connecting an electric wire or the like to a measuring device, etc. It is related to connectors.

(従来技術およびその問題点) 海中探測用の探査機(=おいては撮像装置(二よる海底
その他の撮像情報その他の観測データを光ファイバケー
ブルや電線により母船上に設置された像観測装置や計測
器に伝送し、また計測器などの作動用電力を電線により
探査機側に供給することが行われる。この場合光ファイ
バケーブルや電線などの長さは、探査機の潜航深度が深
くなれば−なる程長くなる。従って電線などを回転しう
るドラムに巻付け、深度に対応して繰出しつるようにし
て、容易円滑な繰出し操作と電線などの整理収容が行わ
れるようにしている。しかしこの場合ドラムに巻付けら
れた光ファイバや電線などの端末は、第1図に示すよう
にドラム(1)の回転に対応して回転する。従ってこの
端末にコネクタ(2)を用いて像観測装置や計測器の光
ファイバケーブル(3)や電線(4)を接続した場合に
は、これらに第1図1−示す矢印のような捩り回転が与
えられ、この捩りが成る値以上(二なると曲げに弱い光
ファイバの切断や電線とコネクタ(2)との接続部の切
断を生じて観測を不能にするおそれがある。またドラム
からの電線などの引出しに当っては出来つる限りドラム
(1)の中心から引出すように努力されるが、必らずし
もそのよう;二ならない場合があり、中心からずれた位
置から引出さざるを得ない場合がある。このため、ドラ
ムの回転時電線などの回転半径が大きくなって計測器な
どに接続された電線などが振廻されて計測が阻害される
おそれがある。従ってその確実な防止は光ファイバケー
ブルや電線などの斥さが数1000m、或いはそれ以上
の長さ(:及ぶ深海底の鉱物資源の探査などの実現(二
当って極めて重要である。
(Prior art and its problems) Undersea exploration probes (= imaging devices) use image observation devices installed on the mother ship to collect imaging information and other observation data of the ocean floor and other areas using optical fiber cables and electric wires. Electrical power is transmitted to the measuring instruments, and power for operating the measuring instruments is supplied to the probe side via electric wires.In this case, the length of the optical fiber cable and electric wires will vary depending on the depth of the probe's dive. -The longer the wires become, the more the wires become longer.Therefore, the wires are wound around a rotatable drum and fed out according to the depth, allowing for easy and smooth feeding operations and the organization and storage of the wires.However, this In this case, the terminals of optical fibers, electric wires, etc. wound around the drum rotate in response to the rotation of the drum (1) as shown in Figure 1. Therefore, by using the connector (2) on this terminal, an image observation device is connected. When optical fiber cables (3) and electric wires (4) of measuring instruments are connected, they are given torsional rotation as shown by the arrows in Figure 1-1, and when the torsion becomes greater than the value (when it becomes two, the bending occurs). Otherwise, the optical fiber, which is susceptible to damage, may be cut, or the connection between the electric wire and the connector (2) may be cut, making observation impossible.Also, when pulling out electric wires from the drum, try to connect the drum (1) as much as possible. Although efforts are made to pull it out from the center of the drum, this is not always the case; in some cases, it may be necessary to pull it out from a position that is off center.For this reason, when the drum rotates, electric wires, etc. There is a risk that the rotation radius of the optical fiber cable or wire will become large and the electric wires connected to the measuring instrument will be swung around, hindering the measurement.Therefore, the best way to prevent this is to ensure that the repulsion of the optical fiber cable or electric wire is several thousand meters, or It is extremely important to realize the exploration of mineral resources in the deep seabed.

本発明は上記のような欠点を伴うことなく、ドラムに巻
込まれた長尺の光ファイバケーブルなどを容易円滑に繰
出し、また巻込みつる光ファイバケーブルなどのドラム
側端末と、計測器端末との接続用光電複合ロータリコネ
クタの提供を目的としてなされたものである。
The present invention does not have the above-mentioned drawbacks, and allows a long optical fiber cable wound around a drum to be easily and smoothly fed out, and also allows the connection between the end of the drum-side end of the wound-up optical fiber cable and the measuring instrument terminal. This was made for the purpose of providing a photoelectric composite rotary connector for connection.

〔発明の構成〕[Structure of the invention]

(問題点を解決するための手段) 第2図は本発明の一実施例縦断面図であって、本発明の
特徴とするところは、ドラム;;固定される回転側本体
(5)とこれと回転自在に同軸的に結合された自由側本
体(6)とからなる光ファイバ接続用のロータリコネク
タAと、その外周に同軸的に設けられてドラムに固定さ
れる回転側本体(7)と、その外周部に回転自在に設け
られた自由側本体(8)とからなる電線接続用ロークリ
コネクタBとにより形成された光電複合ロークリコネク
タであって、そのそれぞれは次のように形成される。
(Means for Solving the Problems) Fig. 2 is a longitudinal sectional view of an embodiment of the present invention, and the features of the present invention include a drum; A rotary connector A for connecting an optical fiber, consisting of a free side main body (6) rotatably and coaxially connected to the rotary connector A, and a rotary side main body (7) provided coaxially on the outer periphery of the free side main body (6) and fixed to the drum. , a free side main body (8) rotatably provided on its outer periphery, and a rotary connector B for connecting electric wires, each of which is formed as follows. Ru.

即ち光ファイバ接続用ロータリコネクタAを、取付板(
9)によりドラム(1)に同軸的(:固定されてドラム
(1)と共に回転し、かっボディ(5a)内の中心に設
けられた保持具(5b)によI)中心にドラム側の光フ
ァイバ(3a)を保持する回転側本体(5)と、回転側
本体(5)のボディ(5a)と保持具(5b)間に介在
された軸受(6b) (6c) によC」回転側本体(
5)と同軸的、かつ回転自在に結合されたボディ(6a
)の中心に保持具(6d)を有し、これに保持された計
測器側の光ファイバ(3b)の端面を、上記回転側本体
(5)側の光ファイバ(3a)の端面に近接して突き合
わせて接続する自由側本体(6)からなる構成にしたも
のである。
That is, the rotary connector A for optical fiber connection is attached to the mounting plate (
9) coaxially with the drum (1) (by means of a holder (5b) which is fixed and rotates together with the drum (1) and is provided at the center of the bracket body (5a)) and the light on the drum side is centered on the drum (1). The rotating side body (5) holding the fiber (3a) and the bearing (6b) (6c) interposed between the body (5a) of the rotating side body (5) and the holder (5b) Main body (
5) is coaxially and rotatably connected to the body (6a
) has a holder (6d) in the center, and the end face of the optical fiber (3b) on the measuring instrument side held by this is brought close to the end face of the optical fiber (3a) on the rotating side main body (5) side. The free side main body (6) is connected by facing each other.

また電線接続用コネクタBを、光ファイバ接続用ロータ
リコネクタAの回転側本体(5)の外周に同軸的に固定
された、外周面にドラム側の電線(4a)の端末が接続
される所要数のリング状接点(7a)を設けた回転側本
体(7)と、その外周部に回転自在かつ同軸的に取付け
られた上記リング状接点(7a)と、接触するリング状
接点(8a)および計測器側電線(4b)が接続される
外部接続端子(8b)を有する自由側本体(8)とから
なる構成としたものであって、リング状接点(7a)と
く8a)とを水銀室内に収容してもよい。
In addition, the connector B for connecting electric wires is fixed coaxially to the outer circumference of the rotary side main body (5) of the rotary connector A for connecting optical fibers, and the required number of ends of the electric wires (4a) on the drum side are connected to the outer peripheral surface. A rotating side main body (7) provided with a ring-shaped contact (7a), the ring-shaped contact (7a) rotatably and coaxially attached to the outer periphery of the main body (7), a ring-shaped contact (8a) in contact with the main body (7), and a measuring ring. The free side main body (8) has an external connection terminal (8b) to which the device side electric wire (4b) is connected, and the ring-shaped contacts (7a) and 8a) are housed in the mercury chamber. You may.

なお図中αQは連結用ばね体であって、光ファイバ接続
用ロータリコネクタAの自由側本体(6)に設けた支柱
(6f)と電線接続用ロータリコネクタBの自由側本体
(8)とを連結して相対位置を固定し、自由側本体°(
6)と(8)がばらばらに動かないようにしたものであ
る。またこの実施例では光ファイバの保持具(5b)を
光ファイバ挿入部(lla)と被覆部挿入部(11b)
をそれぞれ中心に設けた保持部(5bよ)(5b2)と
、これらを差込みにより連結する連結用スリーブ(5b
3)とからなる構成とし、光ファイバ(3a)に・、残
した被覆と光ファイバを保持部(5b1)内に挿入して
接着したのち、保持部(5bよ)をスリーブ(5b’、
)を介して保持部(5b2)と連結して保持し、最後に
押え具(5o)によ()ボディ(5)に固定して接続す
る。また保持具(6d)を保持部(6d工)と(6d2
)およびスリーブ(6d3)とから形成して同一要領に
よ番)光ファイバ(3b)を保持したのち押え具(6e
)によりボディ(6)に固定する方法がとられているが
、他の方法をとることもできる。
In the figure, αQ is a connecting spring body, which connects the support (6f) provided on the free side body (6) of the rotary connector A for connecting optical fibers and the free side body (8) of the rotary connector B for connecting electric wires. Connect to fix the relative position, and connect the free side body ° (
6) and (8) are prevented from moving separately. Furthermore, in this embodiment, the optical fiber holder (5b) is connected to the optical fiber insertion part (lla) and the coating part insertion part (11b).
holding parts (5b) (5b2) provided in the center, and a connecting sleeve (5b2) that connects these by insertion.
After inserting the remaining coating and the optical fiber into the holding part (5b1) and gluing the optical fiber (3a), the holding part (5b) is inserted into the sleeve (5b',
) is connected to and held by the holding part (5b2), and finally it is fixed and connected to the body (5) () by means of a presser (5o). In addition, the holder (6d) is connected to the holder (6d work) and (6d2
) and a sleeve (6d3) and hold the optical fiber (3b) in the same manner, and then the presser (6e
), but other methods may also be used.

(作用および効果) 以上のように本発明ではそれぞれドラムに固定される回
転側本体と、これに回転自在に結合された自由側本体と
を備えた光ファイバ接続用と、これと同軸的に一体化さ
れた電線接続用ロータリコネクタからなる。従ってドラ
ムの回転によ番)各回転側本体(5)(7)に接続され
た光ファイバケーブルおよび電線が回転しても、この回
転が計測器側の光ファイバケーブルなどが接続された各
自由側本体(6)(8)側に伝達されることがないので
、捩りによる光ファイバの切断などを確実に防ぐことが
できる。
(Operations and Effects) As described above, the present invention provides an optical fiber connecting device which is provided with a rotary side main body fixed to a drum, a free side main body rotatably connected to the rotary side main body, and a free side main body coaxially integrated therewith. Consists of a standardized rotary connector for connecting electric wires. Therefore, even if the optical fiber cables and electric wires connected to the main bodies (5) and (7) on the rotating side rotate due to the rotation of the drum, this rotation will cause the rotation of the optical fiber cables, etc. on the measuring instrument side. Since it is not transmitted to the side bodies (6) and (8), it is possible to reliably prevent the optical fiber from being cut due to twisting.

これに加えて本発明の光電複合ロータリコネクタは、ド
ラムと同軸となるように固定されるため光電複合ロータ
リコネクタはあくまでドラムと同軸的に回転される。従
って接続された計測器側の光ファイバケーブルや電線が
ドラムの回転により振廻されて機械力が加わることがな
いので、これによる疲労やコネクタ(=よる計測器など
との接続の不安定などを阻止して計測の不安定を防止で
きる。
In addition, since the photoelectric composite rotary connector of the present invention is fixed coaxially with the drum, the photoelectric composite rotary connector is rotated coaxially with the drum. Therefore, the optical fiber cables and electric wires on the connected measuring instrument side are not swung around by the rotation of the drum and no mechanical force is applied to them, which reduces fatigue and unstable connections with measuring instruments due to connectors. This can prevent measurement instability.

以上本発明を海底探査機に使用した場合を例にとって説
明したが、長大な光ファイバケーブルと電線を使用する
他の用途に使用して効果を奏しうる。また第3図に示す
第2図のA−A部矢視図のように、光ファイバ接続用ロ
ータリコネクタAの自由側本体(6)に設けた4本の支
柱(6f)の内の2本に跨ってねじ止される中心に光フ
ァイバケーブルの径より大きい貫通孔(12a)を設け
た支持板(13の上に、半円形の切欠き(13a) (
14a)が惰円空間傾を形成するように押え板Q3 f
i4を重ね合せて他の2本の支柱(6f)にねじ止めす
るように形成し、これにより光ファイバケーブル(3a
)を挟圧して保持するようにして、自由側本体(6)に
接続された光ファイバケーブルに引張外力が加えられる
のを防止してもよい。
Although the present invention has been described above with reference to the case where it is used in an undersea exploration vehicle, it can be effectively used in other applications that use long optical fiber cables and electric wires. Also, as shown in the A-A section arrow view in Figure 3, two of the four pillars (6f) provided on the free side main body (6) of the rotary connector A for connecting optical fibers A semicircular notch (13a) (
14a) to form a free circular space inclination.
i4 is overlapped and formed to be screwed to the other two supports (6f), thereby connecting the optical fiber cable (3a
) may be held under pressure to prevent an external tensile force from being applied to the optical fiber cable connected to the free body (6).

【図面の簡単な説明】[Brief explanation of drawings]

第1図は繰出しドラムの回転による電線の捩りなどの説
明図、第2図は本発明の一実施例の縦断面図、第3図は
そのA−A部の矢視図である。 (1)・・・・ドラム、 (2)・・・・コネクタ、(
3)・・・・光ファイバケーブル、 (3a)・・・・ドラム側光ファイバケーブル、(3b
)・・・・計測器側光ファイバケーブル、(4)・・・
・電線、  (4a)・・・・ドラム側電線、(4b)
・・・・計測器側電線、 A・・・・光ファイバ接続用ロータリコネクタ、(5)
・・・・回転側本体、  (5a)・・・・ボディ、(
5b)・・・・光ファイバ保持具、  (5c)・・・
・押え具、(6)・・・・自由側本体、  (6a)・
・・・ボディ、(6b)(6c)・・・・軸受、  (
6d)・・・・保持具、(6e)・・・・押え具、  
(6f)・・・・支柱、B・・・・電線接続用ロークリ
コネクタ、(7)・・・・回転側本体、  (7a)・
・・・リング状接点、(8)・・・・自由側本体、(8
a)・・・・リング状接点、(8b)・・・・外部引出
端子、 (9)・・・・取付板、@@@@@@連結用ば
ね、 (lla)・・・・保持具の光ファイバ挿入部、(ll
b)・・・・保持具の被覆部挿入部、α2・・・・支持
板、  (12a)・・・・貫通孔、α3(141・・
・・押え板、 (13a)(14a)・・・・半円形切欠き、(I!9
・・・・楕円空間部。 特許出願人  海洋科学技術センター 外1名
FIG. 1 is an explanatory diagram of the twisting of the electric wire due to the rotation of the feeding drum, FIG. 2 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 3 is a view taken along the line A--A. (1)...Drum, (2)...Connector, (
3)...Optical fiber cable, (3a)...Drum side optical fiber cable, (3b
)...Measuring instrument side optical fiber cable, (4)...
・Electric wire, (4a)...Drum side electric wire, (4b)
...Measuring instrument side electric wire, A...Rotary connector for optical fiber connection, (5)
...Rotating side main body, (5a) ...Body, (
5b)...Optical fiber holder, (5c)...
・Presser, (6)...Free side main body, (6a)・
...Body, (6b) (6c)...Bearing, (
6d)... Holder, (6e)... Presser,
(6f)...Strut, B...Lower connector for connecting electric wires, (7)...Rotating side main body, (7a)...
...Ring-shaped contact, (8) ...Free side body, (8
a)...Ring-shaped contact, (8b)...External lead-out terminal, (9)...Mounting plate, @@@@@@@Connection spring, (lla)...Holder optical fiber insertion part, (ll
b)... Cover insertion part of holder, α2... Support plate, (12a)... Through hole, α3 (141...
... Pressing plate, (13a) (14a) ... Semicircular notch, (I!9
...Elliptical space. Patent applicant: 1 person outside the Marine Science and Technology Center

Claims (1)

【特許請求の範囲】 中心にドラム側光ファイバの保持具を有するボディを備
えた回転側本体と、 この回転側本体のボディに軸受を介して同軸的かつ回転
自在に結合されたボディを備え、かつその中心に上記回
転側本体の光ファイバ端面と突合せ接続される光ファイ
バ保持具を有する自由側本体とからなる光ファイバ接続
用コネクタ部、およびドラム側電線接続用の第1リング
状接点を所要複数箇ボディの外周面に有すると共に、ボ
ディが上記光ファイバ接続用コネクタの外周部に固定さ
れた回転側本体と、この回転側本体の外周に回転自在に
設けられた内周面に、上記第1リング状接点と接触する
第2リング状接点とその外部接続端子を有する自由側本
体とよりなる電線接続用ロータリーコネクタ部、および
上記光ファイバ接続用ロータリコネクタ部とこれに固定
された電線接続用ロータリコネクタ部をドラムの一面に
同軸的に固定する取付板とを備えたことを特徴とする光
電複合ロータリコネクタ。
[Scope of Claims] A rotating main body including a body having a holder for a drum-side optical fiber in the center; a body coaxially and rotatably coupled to the body of the rotating main body via a bearing; In addition, a connector part for connecting an optical fiber consisting of a free side main body having an optical fiber holder in the center butt-connected to the optical fiber end face of the rotary side main body, and a first ring-shaped contact for connecting an electric wire on the drum side are required. A plurality of parts are provided on the outer circumferential surface of the body, and the rotary side main body is fixed to the outer circumferential part of the optical fiber connecting connector, and the inner circumferential surface rotatably provided on the outer circumference of the rotary side main body. A rotary connector part for connecting electric wires, which comprises a second ring-shaped contact that contacts the first ring-shaped contact, and a free side body having an external connection terminal thereof, and a rotary connector part for connecting optical fibers and a rotary connector part for connecting electric wires fixed thereto. A photoelectric composite rotary connector characterized by comprising a mounting plate that coaxially fixes a rotary connector portion to one surface of a drum.
JP5438785A 1985-03-20 1985-03-20 Photoelectric composite rotary connector Pending JPS61213806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5438785A JPS61213806A (en) 1985-03-20 1985-03-20 Photoelectric composite rotary connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5438785A JPS61213806A (en) 1985-03-20 1985-03-20 Photoelectric composite rotary connector

Publications (1)

Publication Number Publication Date
JPS61213806A true JPS61213806A (en) 1986-09-22

Family

ID=12969272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5438785A Pending JPS61213806A (en) 1985-03-20 1985-03-20 Photoelectric composite rotary connector

Country Status (1)

Country Link
JP (1) JPS61213806A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0159202U (en) * 1987-10-12 1989-04-13
FR2662507A1 (en) * 1990-05-22 1991-11-29 Thomson Csf JOINT MICROWAVE AND OPTICAL ROTATING JOINT.
JPH0429191U (en) * 1990-07-03 1992-03-09
FR2681148A1 (en) * 1991-09-06 1993-03-12 Inst Fs Rech Expl Mer Electrooptic rotary joint
EP0701851A1 (en) * 1994-08-17 1996-03-20 Konami Co., Ltd. An apparatus for rotating a playing box of a simulation game machine
EP0982608A1 (en) * 1998-08-21 2000-03-01 Oerlikon Contraves Ag Optical rotating coupler

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538389B1 (en) * 1971-02-15 1980-10-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538389B1 (en) * 1971-02-15 1980-10-03

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0159202U (en) * 1987-10-12 1989-04-13
FR2662507A1 (en) * 1990-05-22 1991-11-29 Thomson Csf JOINT MICROWAVE AND OPTICAL ROTATING JOINT.
US5140289A (en) * 1990-05-22 1992-08-18 Thomson-Csf Combined microwave and optic rotary joint
JPH0429191U (en) * 1990-07-03 1992-03-09
FR2681148A1 (en) * 1991-09-06 1993-03-12 Inst Fs Rech Expl Mer Electrooptic rotary joint
EP0701851A1 (en) * 1994-08-17 1996-03-20 Konami Co., Ltd. An apparatus for rotating a playing box of a simulation game machine
US5772513A (en) * 1994-08-17 1998-06-30 Konami Co., Ltd. Apparatus for simulatively rotating a playing box of a simulation game machine
EP0982608A1 (en) * 1998-08-21 2000-03-01 Oerlikon Contraves Ag Optical rotating coupler

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