JP3408922B2 - Rotating connector - Google Patents
Rotating connectorInfo
- Publication number
- JP3408922B2 JP3408922B2 JP13007896A JP13007896A JP3408922B2 JP 3408922 B2 JP3408922 B2 JP 3408922B2 JP 13007896 A JP13007896 A JP 13007896A JP 13007896 A JP13007896 A JP 13007896A JP 3408922 B2 JP3408922 B2 JP 3408922B2
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- locking piece
- rotary connector
- snap locking
- snap
- 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 - Lifetime
Links
Landscapes
- Steering Controls (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、相対的に回転自在
に連結された一対のハウジング間を可撓性ケーブルによ
って電気的に接続する回転コネクタに係り、特に、ハウ
ジングを別部材によって一体化したタイプの回転コネク
タに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary connector for electrically connecting a pair of housings which are relatively rotatably connected to each other with a flexible cable, and more particularly, the housings are integrated by separate members. Type of rotating connector.
【０００２】[0002]
【従来の技術】回転コネクタは、相対的に回転自在に連
結された一対のハウジングと、両ハウジング間に画成さ
れる環状の収納空間内に巻回されたフラットケーブルと
で概略構成されており、自動車のステアリング装置のよ
うに回転数が有限である機器の電気的接続手段として用
いられている。2. Description of the Related Art A rotary connector is generally composed of a pair of housings which are relatively rotatably connected to each other, and a flat cable which is wound in an annular storage space defined between the housings. It is used as an electrical connection means for equipment such as a steering device of an automobile, which has a finite number of rotations.
【０００３】図１０は従来の回転コネクタを示す断面図
であり、固定側の第１ハウジング１は、中央にセンタ孔
４が開設され円板状の底板２と、底板２の外周縁に立設
された外筒体３とを有し、これら底板２と外筒体３とは
合成樹脂によって一体成形されている。一方、可動側の
第２ハウジング５は、中央に軸挿入孔８が開設された内
筒体７と、内筒体７の上端から水平方向に延びる円板状
の天板６とを有し、これら天板６と内筒体７も合成樹脂
によって一体成形されている。両ハウジング１，５は、
天板６の外周縁が外筒体３の上端縁に、内筒体７の下端
縁が底板のセンタ孔４にそれぞれガイドされることによ
り、相対的に回動自在に連結されている。FIG. 10 is a sectional view showing a conventional rotary connector, in which the first housing 1 on the fixed side has a disc-shaped bottom plate 2 having a center hole 4 in the center and an upright peripheral edge of the bottom plate 2. The bottom plate 2 and the outer cylinder body 3 are integrally molded of synthetic resin. On the other hand, the second housing 5 on the movable side has an inner cylindrical body 7 having a shaft insertion hole 8 formed in the center, and a disk-shaped top plate 6 extending horizontally from the upper end of the inner cylindrical body 7. The top plate 6 and the inner cylinder body 7 are also integrally formed of synthetic resin. Both housings 1 and 5 are
The outer peripheral edge of the top plate 6 is guided to the upper end edge of the outer cylindrical body 3, and the lower end edge of the inner cylindrical body 7 is guided to the center hole 4 of the bottom plate, so that they are relatively rotatably connected.
【０００４】両ハウジング１，５の間には環状の収納空
間９が画成されており、この収納空間９内にフラットケ
ーブル１０が渦巻状に巻回されている。このフラットケ
ーブル１０は互いに平行な複数本の導体を一対の絶縁フ
ィルムでラミネートした帯状体であり、その一端は外筒
体３に固定された状態で第１ハウジング１の外部に導出
され、その他端は内筒体７に固定された状態で第２ハウ
ジング５の外部に導出されている。An annular storage space 9 is defined between the housings 1 and 5, and a flat cable 10 is spirally wound inside the storage space 9. The flat cable 10 is a strip-shaped body in which a plurality of parallel conductors are laminated with a pair of insulating films, and one end of the flat cable 10 is fixed to the outer cylindrical body 3 and is led to the outside of the first housing 1. Is guided to the outside of the second housing 5 while being fixed to the inner cylindrical body 7.
【０００５】このように構成された回転コネクタは、自
動車のステアリング装置に組み込まれ、固定側の第１ハ
ウジング１をステアリング・コラム等のステータ部材
に、可動側の第２ハウジング５をハンドルにそれぞれ取
付けることにより、エアーバッグ回路やホーン回路等の
電気的接続手段として使用される。使用に際し、ハンド
ルを正・逆いずれかの方向に回転すると、その回転力が
第２ハウジング５に伝達され、第２ハウジング５が同方
向に回転する。例えば、ハンドルをその回動中立位置か
ら反時計方向に回転すると、それに連動して第２ハウジ
ング５も反時計方向に回転し、フラットケーブル１０は
外筒体３側から繰り出されて内筒体７側に巻き締められ
る。反対に、ハンドルを回動中立位置から時計方向に回
転すると、それに連動して第２ハウジング５も時計方向
に回転し、フラットケーブル１０は内筒体７側から繰り
出されて外筒体３側に巻き戻され、いずれの状態におい
ても両ハウジング１，５間の電気的接続はフラットケー
ブル１０を介して維持されるようになっている。The rotary connector thus constructed is incorporated in a steering device of an automobile, and the fixed first housing 1 is attached to a stator member such as a steering column and the movable second housing 5 is attached to a steering wheel. As a result, it is used as an electrical connecting means for an air bag circuit, a horn circuit, and the like. In use, when the handle is rotated in either the forward or reverse direction, the rotational force is transmitted to the second housing 5, and the second housing 5 rotates in the same direction. For example, when the handle is rotated counterclockwise from its rotational neutral position, the second housing 5 is also rotated counterclockwise in conjunction therewith, and the flat cable 10 is fed out from the outer cylinder body 3 side and is rotated to the inner cylinder body 7. Tightened to the side. On the contrary, when the handle is rotated in the clockwise direction from the rotation neutral position, the second housing 5 is also rotated in the clockwise direction in conjunction therewith, and the flat cable 10 is extended from the inner cylinder body 7 side to the outer cylinder body 3 side. It is rewound and the electrical connection between the housings 1 and 5 is maintained via the flat cable 10 in any state.
【０００６】[0006]
【発明が解決しようとする課題】ところで、前述した従
来の回転コネクタにあっては、底板２と外筒体３とを一
体成形することで第１ハウジング１を構成し、天板６と
内筒体７とを一体成形成形することで第２ハウジング５
を構成しているため、両ハウジング１，５を成形するた
めの金型構造が複雑になるばかりでなく、樹脂のヒケ等
に起因して寸法精度が低下するという問題があった。な
お、第２ハウジング５を内筒体７のみで構成し、底板２
と天板６の両方を外筒体３に一体成形した回転コネクタ
や、外筒体３と内筒体７のそれぞれに一体成形した天板
６をオーバーラップさせる回転コネクタ等も知られてい
るが、いずれにしても底板２と天板６は外筒体３と内筒
体７の少なくとも一方に一体成形されているため、同様
の問題があった。In the conventional rotary connector described above, the first housing 1 is formed by integrally molding the bottom plate 2 and the outer cylinder body 3, and the top plate 6 and the inner cylinder are formed. By integrally molding the body 7 with the second housing 5,
Therefore, not only is the die structure for molding both housings 1 and 5 complicated, but the dimensional accuracy decreases due to sink marks of the resin and the like. It should be noted that the second housing 5 is composed only of the inner cylindrical body 7, and the bottom plate 2
Although a rotary connector in which both the top plate 6 and the top plate 6 are integrally molded in the outer cylinder body 3, a rotary connector in which the top plate 6 integrally molded in each of the outer cylinder body 3 and the inner cylinder body 7 are overlapped, and the like are known. In any case, since the bottom plate 2 and the top plate 6 are integrally formed on at least one of the outer cylinder body 3 and the inner cylinder body 7, there is a similar problem.
【０００７】これに対し、底板２と天板６の少なくとも
一方を外筒体３または内筒体７と別体に成形し、後工程
で熱がしめによって一体化するようにした回転コネクタ
も提案されており、このものは個々の部材の形状が簡略
されるため、上記した問題は解消されるが、煩雑な熱が
しめ工程を必要とするため、製造コストが高騰するとい
う別の問題が発生する。On the other hand, there is also proposed a rotary connector in which at least one of the bottom plate 2 and the top plate 6 is formed separately from the outer cylinder body 3 or the inner cylinder body 7 and is integrated by heat squeezing in a later step. However, since the shape of each member is simplified, this problem is solved, but since a complicated heat squeezing step is required, another problem that the manufacturing cost rises occurs To do.
【０００８】[0008]
【課題を解決するための手段】本発明は、可撓性ケーブ
ルの収納空間を画成する一対の筒状体と一対の板状体の
うち、少なくとも１つの板状体を筒状体とは別部材と
し、これら両部材を突起とスナップ係止片とのスナップ
イン動作によって一体化すると共に、スナップ係止片の
周囲に外れ防止部を設けることとする。このようにする
と、簡単なスナップアクションによって板状体と筒状体
とを一体化できるばかりでなく、回転コネクタの搬送中
やステアリング装置への組み込み後に、スナップ係止片
が突起から不用意に外れることを防止できる。SUMMARY OF THE INVENTION According to the present invention, at least one of the pair of tubular bodies and the pair of plate-like bodies that define a storage space for a flexible cable is referred to as a tubular body. As separate members, these two members are integrated by a snap-in operation of the projection and the snap locking piece, and a disengagement prevention portion is provided around the snap locking piece. With this configuration, not only the plate-shaped body and the cylindrical body can be integrated by a simple snap action, but also the snap locking piece is inadvertently disengaged from the protrusion during transportation of the rotary connector or after being assembled in the steering device. Can be prevented.
【０００９】[0009]
【発明の実施の形態】本発明の回転コネクタでは、環状
の収納空間を介して相対的に回転自在な一対の筒状体
と、前記収納空間の両開放端を閉塞する一対の板状体
と、前記収納空間の内部に収納されて前記両筒状体間を
接続する可撓性ケーブルとを備え、前記両板状体がいず
れか一方の前記筒状体に一体化または両方の筒状体に別
々に一体化された回転コネクタにおいて、前記筒状体と
前記板状体のいずれか一方の部材に弾性変形可能なスナ
ップ係止片を設け、いずれか他方の部材に、前記スナッ
プ係止片に係止して両部材を一体化する突起と、前記ス
ナップ係止片の周囲に位置する外れ防止部とを設ける。DETAILED DESCRIPTION OF THE INVENTION In the rotary connector of the present invention includes a relatively rotatable pair of tubular body via an annular receiving space, and a pair of plate-like body for closing the open ends of the accommodating space , is housed inside the housing space and a flexible cable between the two cylindrical bodies, the two plate-like bodies Izu
Integral with one of the tubular bodies or separate with both tubular bodies
In the individually integrated rotary connector, an elastically deformable snap locking piece is provided on one of the tubular body and the plate-shaped body, and the snap locking piece is attached to either of the other members. A protrusion that locks and integrates both members and a disengagement prevention portion that is located around the snap locking piece are provided.
【００１０】スナップインによって一体化される筒状体
と板状体は、外側の筒状体と底板、外側の筒状体と天
板、内側の筒状体と底板、内側の筒状体と天板、あるい
はこれらの組み合わせ等、種々の形態が可能であり、特
に、外側の筒状体と底板の場合が好適である。The tubular body and the plate body integrated by the snap-in are the outer tubular body and the bottom plate, the outer tubular body and the top plate, the inner tubular body and the bottom plate, and the inner tubular body. Various forms such as a top plate or a combination thereof are possible, and particularly, the case of the outer cylindrical body and the bottom plate is preferable.
【００１１】また、前記外れ防止部として前記筒状体の
周面に突条を一体に形成し、この突条の内側に前記突起
を一体に形成すると、筒状体の肉厚が厚くなることによ
る肉厚の不均一部分が少なくなり、筒状体を成形する場
合に好ましい。If a protrusion is integrally formed on the peripheral surface of the tubular body as the detachment preventing portion and the protrusion is integrally formed inside the protrusion, the wall thickness of the tubular body is increased. This is preferable in the case of molding a tubular body, since the non-uniform thickness part due to is reduced.
【００１２】また、前記突条の前記突起に対向する部位
に該突起と略同幅の切欠きを形成すると、筒状体の型開
き方向にひっかかる部分、所謂アンダーカットがなくな
るため、筒状体の金型構造を簡略化することができる。If a notch having substantially the same width as that of the protrusion is formed in a portion of the ridge opposite to the protrusion, the portion of the cylindrical body that is caught in the die opening direction, that is, so-called undercut, is eliminated. The mold structure of can be simplified.
【００１３】[0013]
【実施例】実施例について図面を参照して説明すると、
図１は本発明の第１実施例に係る回転コネクタの要部を
示す断面図、図２は該回転コネクタに備えられる第１ハ
ウジングの組立前の状態を示す斜視図、図３は該第１ハ
ウジングの組立後の状態を示す斜視図である。EXAMPLES Examples will be described with reference to the drawings.
FIG. 1 is a sectional view showing a main part of a rotary connector according to a first embodiment of the present invention, FIG. 2 is a perspective view showing a state before assembly of a first housing provided in the rotary connector, and FIG. It is a perspective view which shows the state after the assembly of the housing.
【００１４】図１に示すように、合成樹脂で成形された
底板１１と外筒体１２とは、後述するスナップ結合で一
体化されて固定側の第１ハウジングを構成しており、外
筒体１２の上端には天板１３が一体成形されている。ま
た、これら固定側の底板１１と天板１３の中心部に図示
せぬ内筒体が配置されており、この内筒体は外筒体１２
に対して回転自在な可動側の第２ハウジングを構成して
いる。なお、本実施例の場合、外筒体１２の上端に天板
１３が一体成形されているが、図１０に示した従来例と
同様に、この天板１３は図示省略した内筒体の上端に一
体成形しても良い。これら底板１１と外筒体１２と天板
１３および内筒体とで環状の収納空間１４が画成されて
おり、この収納空間１４内にフラットケーブル１５が渦
巻状に巻回されている。[0014] As shown in FIG. 1, and are the bottom plate 11 and the outer cylinder 12 of synthetic resin, constitutes the first housing of the fixed side are integrated with a snap coupling to be described later, the outer
A top plate 13 is integrally formed on the upper end of the cylindrical body 12. Well
In addition, these are shown in the center of the bottom plate 11 and the top plate 13 on the fixed side.
The inner cylinder which is not provided is arranged, and this inner cylinder is the outer cylinder 12.
A movable second housing that is rotatable with respect to
There is. In addition, in the case of the present embodiment, the top plate 13 is integrally formed on the upper end of the outer cylindrical body 12, but it is different from the conventional example shown in FIG.
Similarly, the top plate 13 may be integrally formed with the upper end of an inner cylinder (not shown). An annular storage space 14 is defined by the bottom plate 11, the outer cylinder 12, the top plate 13, and the inner cylinder, and a flat cable 15 is spirally wound in the storage space 14.
【００１５】図２に示すように、底板１１の外周縁の複
数箇所には係止孔１６ａを有するコ字状のスナップ係止
片１６が一体に形成されており、このスナップ係止片１
６の上端にはテーパが付けられている。一方、外筒体１
２の外周面の複数箇所には、外れ防止部としての一対の
突条１７と、これら突条１７の内側に位置する突起１８
とが一体に形成されており、この突起１８の下端にもテ
ーパが付けられている。前記両突条１７の間には外筒体
１２の外周面と面一の切欠き１９が形成されており、こ
の切欠き１９は突起１８の真上に位置している。切欠き
１９の幅ｍは突起１８の幅ｎと略同一または若干幅広に
設定されており、突条１７と突起１８間にアンダーカッ
トとなる部分が生じないようになっている。したがっ
て、外筒体１２を成形する際に、両突条１７と突起１８
を結ぶ箇所をパーティングラインとすることにより、複
雑なスライドコアを用いることなく突条１７と突起１８
を形成することができ、外筒体１２の金型構造を簡略化
することができる。さらにこの場合は、外筒体１２に突
条１７を設けるだけで外れ防止部を形成できるので、外
筒体１２の肉厚を厚くする必要がなく、金型成形のヒケ
等による変形を受けることがない上、外筒体１２の材料
を制約することができる。As shown in FIG. 2, U-shaped snap locking pieces 16 having locking holes 16a are integrally formed at a plurality of locations on the outer peripheral edge of the bottom plate 11.
The upper end of 6 is tapered. On the other hand, the outer cylinder 1
At a plurality of locations on the outer peripheral surface of 2, there are provided a pair of protrusions 17 as detachment preventing portions, and protrusions 18 located inside these protrusions 17.
Are integrally formed, and the lower end of the protrusion 18 is also tapered. A notch 19 that is flush with the outer peripheral surface of the outer cylindrical body 12 is formed between the both protrusions 17, and the notch 19 is located directly above the protrusion 18. The width m of the notch 19 is set to be substantially the same as or slightly wider than the width n of the protrusion 18, so that an undercut portion does not occur between the protrusion 17 and the protrusion 18. Therefore, when the outer cylinder body 12 is molded, both the protrusions 17 and the protrusions 18
By using the parting line at the part connecting the ridges 17 and 18 without using a complicated slide core.
Can be formed, and the mold structure of the outer cylinder 12 can be simplified. Further, in this case, since the disengagement prevention portion can be formed only by providing the protrusions 17 on the outer tubular body 12, it is not necessary to increase the thickness of the outer tubular body 12, and the outer tubular body 12 is not deformed by sink marks or the like of the die molding. In addition, the material of the outer cylindrical body 12 can be restricted.
【００１６】このように底板１１と外筒体１２とを別々
に成形した後、突起１８を対応するスナップ係止片１６
の上端に突き当て、外筒体１２を底板１１に向けて押し
込むと、スナップ係止片１６が弾性変形して突起１８が
係止孔１６ａの上端に係止され、図３に示すように、底
板１１と外筒体１２とは一体化される。この状態におい
て、スナップ係止片１６の外方のほとんどは両突条１７
によって包囲されるため、両突条１７がスナップ係止片
１６を押し拡げようとする器具の侵入を阻止し、スナッ
プ係止片１６と突起１８との係止を確実に維持できる。
なお、上記したスナップイン動作は、スナップ係止片１
６と突起１８に形成されたテーパを利用してスムーズに
行なうことができる。After the bottom plate 11 and the outer cylindrical body 12 are separately molded in this manner, the projections 18 are snapped onto the corresponding snap locking pieces 16.
When the outer cylinder 12 is pushed toward the bottom plate 11, the snap locking piece 16 is elastically deformed and the projection 18 is locked at the upper end of the locking hole 16a, as shown in FIG. The bottom plate 11 and the outer cylindrical body 12 are integrated. In this state, most of the outside of the snap locking piece 16 has both the ridges 17.
Since the ridges 17 are surrounded by the ridges 17, the protrusions 17 can prevent the device for pushing the snap locking piece 16 from expanding and the locking between the snap locking piece 16 and the protrusion 18 can be reliably maintained.
The snap-in operation described above is performed by the snap locking piece 1.
6 and the taper formed on the protrusion 18 can be used for smooth operation.
【００１７】図４と図５に示す実施例は、外筒体１２の
外周面に突起１８と袋状のカバー２０とを一体成形し、
カバー２０の上部に突起１８と略同一幅の切欠き１９を
形成してある。このカバー２０は外れ防止部として機能
するもので、スナップ係止片１６の係止孔１６ａが突起
１８に係止された状態において、スナップ係止片１６の
上部のほとんどはカバー２０で覆われる。したがって、
底板１１と外筒体１２とを一体化した後は、カバー２０
がスナップ係止片１６を押し拡げようとする器具の侵入
を阻止し、スナップ係止片１６と突起１８との係止は一
層確実に維持される。また、突起１８とカバー２０との
距離をスナップ係止片１６の厚みより若干小さく設定
し、スナップ係止片１６がカバー２０を外方に押しなが
ら突起１８とカバー２０間に入って突起１８に係合する
と、この係合が不用意に外れることは全くない。In the embodiment shown in FIGS. 4 and 5, the projection 18 and the bag-shaped cover 20 are integrally formed on the outer peripheral surface of the outer cylindrical body 12,
A notch 19 having substantially the same width as the protrusion 18 is formed on the upper portion of the cover 20. The cover 20 functions as a disengagement prevention portion, and when the locking hole 16a of the snap locking piece 16 is locked to the protrusion 18, most of the upper portion of the snap locking piece 16 is covered with the cover 20. Therefore,
After the bottom plate 11 and the outer cylindrical body 12 are integrated, the cover 20
Prevents the intrusion of an instrument that attempts to expand the snap locking piece 16 and the locking between the snap locking piece 16 and the protrusion 18 is more reliably maintained. Further, the distance between the projection 18 and the cover 20 is set to be slightly smaller than the thickness of the snap locking piece 16, and the snap locking piece 16 pushes the cover 20 outward and enters between the projection 18 and the cover 20 to form the projection 18. Once engaged, this engagement is never inadvertently disengaged.
【００１８】図６と図７に示す実施例は、外筒体１２の
外周面に上下方向に延びる凹溝２１を形成し、この凹溝
２１内に突起１８を一体成形してある。この凹溝２１の
深さ寸法はスナップ係止片１６の厚みと同等もしくはそ
れ以上に設定されており、スナップ係止片１６の係止孔
１６ａが突起１８に係止された状態において、凹溝２１
の両側の肉厚部分２２はスナップ係止片１６の両側部に
位置する。したがって、これら肉厚部分２２が外れ防止
部として機能し、スナップ係止片１６と突起１８との係
止を確実に維持する。この場合、外筒体１２には凹溝２
１があって突起１８があるだけなので、外筒体１２を成
形する金型は、突起１８の部分をパーティングラインに
することでシンプルとなり、製作し易くなる。In the embodiment shown in FIGS. 6 and 7, a concave groove 21 extending in the vertical direction is formed on the outer peripheral surface of the outer cylindrical body 12, and the projection 18 is integrally molded in the concave groove 21. The depth dimension of the recessed groove 21 is set to be equal to or greater than the thickness of the snap locking piece 16, and when the locking hole 16a of the snap locking piece 16 is locked to the protrusion 18, the recessed groove is formed. 21
The thick portions 22 on both sides of the snap locking piece 16 are located on both sides of the snap locking piece 16. Therefore, these thick-walled portions 22 function as a detachment preventing portion, and the engagement between the snap engagement piece 16 and the protrusion 18 is reliably maintained. In this case, the concave groove 2 is formed in the outer cylindrical body 12.
Since there is only one and there is a protrusion 18, the mold for molding the outer cylindrical body 12 becomes simple by making the portion of the protrusion 18 a parting line, and is easy to manufacture.
【００１９】図８と図９に示す実施例では、天板１３は
図示省略した内筒体の上端に一体成形されており、これ
ら天板１３と内筒体で可動側の第２ハウジングが構成さ
れている。また、スナップ係止片２３は外筒体１２の下
端に突出形成されており、この外筒体１２と底板１１で
固定側の第１ハウジングが構成されている。外筒体１２
の外周面にはスナップ係止片２３に達する凹溝２４が形
成されており、この凹溝２４の下部は係止孔２３ａとな
っている。一方、底板１１の外周縁にはスナップ係止片
２３に係止される突起２５が一体成形され、この突起２
５の両側は径方向に突出して外れ防止部２６となってい
る。この場合、図９に示すように、スナップ係止片２３
の下端を対応する突起２５に突き当て、外筒体１２を底
板１１に向けて押し込むと、スナップ係止片２３が弾性
変形して突起２５が係止孔２３ａの下端に係止され、図
８に示すように、底板１１と外筒体１２とは一体化され
る。この状態において、スナップ係止片２３は両外れ防
止部２６に対して径方向内側に位置するため、両外れ防
止部２６がスナップ係止片２３を押し拡げようとする器
具の侵入を阻止し、スナップ係止片２３と突起２５との
係止は確実に維持される。また、この場合、外筒体１２
は同一幅の凹溝２４とその下端にスナップ係止片２３が
あるだけなので、外筒体１２を成形する金型は構造がシ
ンプルとなり、製作し易い。[0019] In the embodiment shown in FIGS. 8 and 9 are integrally molded on the upper end of the cylindrical body top plate 13 which is not shown, it
The top plate 13 and the inner cylinder form a movable second housing.
Has been. Furthermore, snap locking piece 23 is protruded to the lower end of the outer cylinder 12, in the outer cylinder 12 and the bottom plate 11
The first housing on the fixed side is configured. Outer cylinder 12
A concave groove 24 reaching the snap locking piece 23 is formed on the outer peripheral surface of the concave groove 24, and the lower portion of the concave groove 24 is a locking hole 23a. On the other hand, on the outer peripheral edge of the bottom plate 11, a projection 25 that is locked to the snap locking piece 23 is integrally formed.
Both sides of 5 project in the radial direction to form a detachment prevention portion 26. In this case, as shown in FIG.
When the outer cylinder 12 is pushed toward the bottom plate 11, the snap locking piece 23 is elastically deformed and the projection 25 is locked to the lower end of the locking hole 23a. As shown in, the bottom plate 11 and the outer cylindrical body 12 are integrated. In this state, the snap locking pieces 23 are located radially inward with respect to the two slip-off preventing portions 26, so that the both slip-off preventing portions 26 prevent intrusion of a device that attempts to push and expand the snap locking pieces 23, The engagement between the snap engagement piece 23 and the protrusion 25 is reliably maintained. Further, in this case, the outer cylindrical body 12
Since only the concave groove 24 having the same width and the snap locking piece 23 at the lower end thereof are provided, the mold for molding the outer cylindrical body 12 has a simple structure and is easy to manufacture.
【００２０】[0020]
【発明の効果】以上説明したように、本発明は、可撓性
ケーブルの収納空間を画成する一対の筒状体と一対の板
状体のうち、少なくとも１つの板状体を筒状体とは別部
材とし、これら両部材を突起とスナップ係止片とのスナ
ップイン動作によって一体化すると共に、スナップ係止
片の周囲に外れ防止部を設けたため、簡単なスナップア
クションによって板状体と筒状体とを一体化できるばか
りでなく、回転コネクタの搬送中やステアリング装置へ
の組み込み後に、スナップ係止片が突起から不用意に外
れることを防止できる。As described above, according to the present invention, at least one of the pair of tubular bodies and the pair of tubular bodies that define the storage space for the flexible cable is a tubular body. Since they are separate members, and these two members are integrated by the snap-in operation of the projection and the snap locking piece and the disengagement prevention part is provided around the snap locking piece, the plate-like body can be formed by a simple snap action. Not only can it be integrated with the tubular body, but it is possible to prevent the snap locking piece from being accidentally disengaged from the protrusion during transportation of the rotary connector or after installation in the steering device.
【図１】本発明の第１実施例に係る回転コネクタの要部
を示す断面図である。FIG. 1 is a sectional view showing a main part of a rotary connector according to a first embodiment of the present invention.
【図２】該回転コネクタに備えられる第１ハウジングの
組立前の状態を示す斜視図である。FIG. 2 is a perspective view showing a state before assembly of a first housing provided in the rotary connector.
【図３】該第１ハウジングの組立後の状態を示す斜視図
である。FIG. 3 is a perspective view showing a state after the first housing is assembled.
【図４】本発明の第２実施例に係る回転コネクタの要部
を示す断面図である。FIG. 4 is a sectional view showing a main part of a rotary connector according to a second embodiment of the present invention.
【図５】該回転コネクタに備えられる第１ハウジングの
組立後の状態を示す斜視図である。FIG. 5 is a perspective view showing a state after the first housing provided in the rotary connector is assembled.
【図６】本発明の第３実施例に係る回転コネクタの要部
を示す断面図である。FIG. 6 is a sectional view showing a main part of a rotary connector according to a third embodiment of the present invention.
【図７】該回転コネクタに備えられる第１ハウジングの
組立後の状態を示す斜視図である。FIG. 7 is a perspective view showing a state after assembly of a first housing included in the rotary connector.
【図８】本発明の第４実施例に係る回転コネクタの要部
を示す断面図である。FIG. 8 is a sectional view showing a main part of a rotary connector according to a fourth embodiment of the invention.
【図９】該回転コネクタに備えられる第１ハウジングの
組立前の状態を示す斜視図である。FIG. 9 is a perspective view showing a state before assembly of a first housing provided in the rotary connector.
【図１０】従来の回転コネクタを示す断面図である。FIG. 10 is a sectional view showing a conventional rotary connector.
１１ 底板 １２ 外筒体 １３ 天板 １４ 収納空間 １５ フラットケーブル（可撓性ケーブル） １６，２３ スナップ係止片 １６ａ，２３ａ 係止孔 １７ 突条（外れ防止部） １８，２５ 突起 １９ 切欠き ２０ カバー（外れ防止部） ２１ 凹溝 ２２ 肉厚部分（外れ防止部） ２４ 凹溝 ２６ 外れ防止部 11 bottom plate 12 outer cylinder 13 Top plate 14 storage space 15 Flat cable (flexible cable) 16,23 Snap locking piece 16a, 23a Locking hole 17 Protrusion (Disengagement prevention part) 18,25 protrusion 19 notches 20 Cover (removal prevention part) 21 groove 22 Thick part (disengagement prevention part) 24 groove 26 Detachment prevention section
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−275355（ＪＰ，Ａ) 特開 平５−234640（ＪＰ，Ａ) 特開 平７−241999（ＪＰ，Ａ) 実開 昭60−96790（ＪＰ，Ｕ) 実開 平２−83863（ＪＰ，Ｕ) 実開 平２−87197（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01R 35/04 B60R 16/02 675 B62D 1/04 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-6-275355 (JP, A) JP-A-5-234640 (JP, A) JP-A-7-241999 (JP, A) Actual Development Sho-60- 96790 (JP, U) Actual development 2-83863 (JP, U) Actual development 2-87197 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) H01R 35/04 B60R 16 / 02 675 B62D 1/04
Claims (3)
在な一対の筒状体と、前記収納空間の両開放端を閉塞す
る一対の板状体と、前記収納空間の内部に収納されて前
記両筒状体間を接続する可撓性ケーブルとを備え、前記
両板状体がいずれか一方の前記筒状体に一体化または両
方の筒状体に別々に一体化された回転コネクタにおい
て、 前記筒状体と前記板状体のいずれか一方の部材に弾性変
形可能なスナップ係止片を設け、いずれか他方の部材
に、前記スナップ係止片に係止して両部材を一体化する
突起と、前記スナップ係止片の周囲に位置する外れ防止
部とを設けたことを特徴とする回転コネクタ。And 1. A pair of rotatable relative via an annular housing space tubular body, and a pair of plate-like body for closing the open ends of the receiving space, is housed inside the housing space and a flexible cable for connecting the front <br/> SL both tubular bodies Te, the
Both plate-shaped bodies are integrated with either one of the tubular bodies or both
The rotary connector that is separately integrated with the other tubular body.
An elastically deformable snap locking piece is provided on one of the tubular body and the plate-like body, and the other member is integrated with the snap locking piece by locking the snap locking piece. A rotary connector, comprising: a protrusion that changes into a shape and a detachment prevention portion that is located around the snap locking piece.
部は前記筒状体の周面に一体に形成された突条であり、
この突条の内側に前記突起が一体に形成されていること
を特徴とする回転コネクタ。2. The disengagement prevention portion according to claim 1, wherein the detachment prevention portion is a ridge formed integrally with the peripheral surface of the tubular body,
A rotary connector, wherein the protrusion is integrally formed inside the protrusion.
記突起に対向する部位に該突起と略同幅の切欠きが形成
されていることを特徴とする回転コネクタ。3. The rotary connector according to claim 2, wherein a notch having substantially the same width as that of the protrusion is formed at a portion of the protrusion that faces the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13007896A JP3408922B2 (en) | 1996-05-24 | 1996-05-24 | Rotating connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13007896A JP3408922B2 (en) | 1996-05-24 | 1996-05-24 | Rotating connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09320722A JPH09320722A (en) | 1997-12-12 |
| JP3408922B2 true JP3408922B2 (en) | 2003-05-19 |
Family
ID=15025468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13007896A Expired - Lifetime JP3408922B2 (en) | 1996-05-24 | 1996-05-24 | Rotating connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3408922B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017170752A1 (en) * | 2016-03-31 | 2017-10-05 | 古河電気工業株式会社 | Rotary connector device |
| WO2020121741A1 (en) * | 2018-12-13 | 2020-06-18 | 古河電気工業株式会社 | Rotary connector device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206322944U (en) * | 2016-12-30 | 2017-07-11 | 阿尔卑斯电气株式会社 | Rotary connector |
-
1996
- 1996-05-24 JP JP13007896A patent/JP3408922B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017170752A1 (en) * | 2016-03-31 | 2017-10-05 | 古河電気工業株式会社 | Rotary connector device |
| CN108886226A (en) * | 2016-03-31 | 2018-11-23 | 古河电气工业株式会社 | Rotary connector |
| JPWO2017170752A1 (en) * | 2016-03-31 | 2019-02-14 | 古河電気工業株式会社 | Rotating connector device |
| US10439348B2 (en) | 2016-03-31 | 2019-10-08 | Furukawa Electric Co., Ltd. | Rotary connector device |
| CN108886226B (en) * | 2016-03-31 | 2020-04-07 | 古河电气工业株式会社 | Rotary connector device |
| EP3447857A4 (en) * | 2016-03-31 | 2020-08-26 | Furukawa Electric Co., Ltd. | Rotary connector device |
| WO2020121741A1 (en) * | 2018-12-13 | 2020-06-18 | 古河電気工業株式会社 | Rotary connector device |
| US20210281033A1 (en) | 2018-12-13 | 2021-09-09 | Furukawa Electric Co., Ltd. | Rotary connector device |
| JPWO2020121741A1 (en) * | 2018-12-13 | 2021-10-28 | 古河電気工業株式会社 | Rotating connector device |
| JP7371010B2 (en) | 2018-12-13 | 2023-10-30 | 古河電気工業株式会社 | rotating connector device |
| US11901683B2 (en) | 2018-12-13 | 2024-02-13 | Furukawa Electric Co., Ltd. | Rotary connector device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09320722A (en) | 1997-12-12 |
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