JPH09151922A - Fixing structure of cover to end surface of cylinder - Google Patents
Fixing structure of cover to end surface of cylinderInfo
- Publication number
- JPH09151922A JPH09151922A JP31103895A JP31103895A JPH09151922A JP H09151922 A JPH09151922 A JP H09151922A JP 31103895 A JP31103895 A JP 31103895A JP 31103895 A JP31103895 A JP 31103895A JP H09151922 A JPH09151922 A JP H09151922A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- end surface
- tubular body
- cylindrical portion
- 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.)
- Pending
Links
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Steering Controls (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は筒状体の端面へのカ
バー固定構造に関し、特に、同軸上に同心円状に配置さ
れて相対的に回転する部材間の電気的な接続を、フラッ
トなケーブルを介して行う相対回転部材間の無接点信号
伝達装置のような筒状体の端面へのカバー固定構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a cover to an end surface of a tubular body, and more particularly to a flat cable for electrically connecting members which are coaxially concentrically arranged and relatively rotate. The present invention relates to a structure for fixing a cover to an end surface of a tubular body such as a contactless signal transmission device between relative rotating members performed via a cover.
【０００２】[0002]
【従来の技術】従来、１つの軸に固定された部材とこの
軸の回りを回転する部材との間で、電気的な接続をとっ
たり、信号を伝達する必要がある場合がある。例えば、
電子制御化の進んだ自動車では、自動車の操舵装置にお
けるハンドル（ステアリングホイール）に電子制御のた
めの各種スイッチやエアバック等の電装品が設けられる
ものがあり、このスイッチや電装品を電気配線によって
ステアリングコラム側に接続する必要がある。自動車の
ハンドルは複数回左右に有限回だけ回転可能なように設
定されているため、ハンドルの回転軸とステアリングコ
ラムとを電気的に接続するためには、ハンドルの回転軸
とステアリングコラムとの間にブラシを設けるか、ある
いは、ハンドルの回転軸とステアリングコラムとの間に
ハンドルの回転に追従して動くことができる柔軟なケー
ブル、一般には複数の導線を備えた可撓性のフレキシブ
ルフラットケーブル（以後単にフラットケーブルとい
う）を設けなければならない。2. Description of the Related Art Conventionally, there are cases where it is necessary to make an electrical connection or transmit a signal between a member fixed to one shaft and a member rotating around this shaft. For example,
In automobiles with advanced electronic control, steering wheels (steering wheels) in automobile steering systems are equipped with various electronic components such as switches and airbags for electronic control. These switches and electrical components are connected by electrical wiring. It is necessary to connect to the steering column side. Since the steering wheel of a car is set so that it can be rotated left and right multiple times a finite number of times, in order to electrically connect the rotation axis of the steering wheel and the steering column, it is necessary to connect the rotation axis of the steering wheel and the steering column. A flexible cable which is provided with a brush or which can move between the rotary shaft of the steering wheel and the steering column to follow the rotation of the steering wheel, generally a flexible flexible flat cable having a plurality of conductive wires ( Hereinafter, simply called a flat cable) must be provided.
【０００３】しかしながら、ハンドルの回転軸とステア
リングコラムとの間をブラシで電気的に接続する構成
は、ブラシが機械的に摺動する接点であるので信頼性の
上で問題がある。そこで、フラットケーブルを使用した
ブラシレスの無接点電気信号伝達装置が提案されてい
る。この無接点電気信号伝達装置では、フラットケーブ
ルがハンドル軸に固定された回転部材（ロテータ）とス
テアリングコラム側に固定されたハウジングとの間に渦
巻き状態で、或いは、途中で折り返された反転渦巻き状
態で設けられており、ハンドル軸の回転に伴ってフラッ
トケーブルがハウジングの中を移動するようになってい
る。However, the structure in which the rotating shaft of the steering wheel and the steering column are electrically connected by a brush is problematic in terms of reliability because the brush is a contact that slides mechanically. Therefore, a brushless non-contact electric signal transmission device using a flat cable has been proposed. In this non-contact electric signal transmission device, the flat cable is swirled between the rotating member (rotator) fixed to the handle shaft and the housing fixed to the steering column side, or the inverted spiral state is folded back halfway. The flat cable moves in the housing as the handle shaft rotates.
【０００４】このような無接点電気信号伝達装置として
は、例えば図６〜図８に示すものが知られている。すな
わち、相対回転部材間の無接点信号伝達装置１０は、図
６に示すように、内側円筒部１１ａを有する回転体１１
と、内側円筒部１１ａを所定の間隔をおいて囲む外側円
筒部１２ａを有する固定体１２と、内側円筒部１１ａと
外側円筒部１２ａとの間の環状の空間Ｋ内に、同空間Ｋ
に沿って途中反転の渦巻き状に巻かれた状態で収納さ
れ、内周端部１３ａが内周円筒部１１ａに保持され、外
周端部１３ｂが外側円筒部１２ａに保持されるフラット
ケーブル１３と、前述の空間Ｋに沿って移動自在に設け
られ、開口部２１ｃでフラットケーブル１３を反転させ
るＣ字状の移動体２１とを備えている。As such a non-contact electric signal transmission device, for example, those shown in FIGS. 6 to 8 are known. That is, as shown in FIG. 6, the contactless signal transmission device 10 between the relative rotating members includes the rotating body 11 having the inner cylindrical portion 11a.
A fixed body 12 having an outer cylindrical portion 12a surrounding the inner cylindrical portion 11a at a predetermined interval, and an annular space K between the inner cylindrical portion 11a and the outer cylindrical portion 12a.
A flat cable 13 that is housed in a state of being wound in a spiral shape of a halfway reversal along the inner peripheral end portion 13a is held by the inner peripheral cylindrical portion 11a and an outer peripheral end portion 13b is held by the outer cylindrical portion 12a; The movable body 21 is provided so as to be movable along the aforementioned space K and has a C-shaped moving body 21 for inverting the flat cable 13 at the opening 21c.
【０００５】前述の固定体１２には、空間Ｋの上側及び
外側円筒部１２ａの周囲を覆うようにカバー部材１４が
設けられている。このカバー部材１４は、空間Ｋの上側
を覆う上カバー１４ａと、外側円筒部１２ａの周囲を囲
む円筒部１４ｂとによって構成されており、固定体１２
に対して回転することなく固定体１２に取り付けられ
る。上カバー１４ａの中央部には、開口部１４ｃが形成
されている。また、固定体１２には、空間Ｋの下側を覆
う下カバー１２ｂが外側円筒部１２ａと一体に形成され
ている。さらに、カバー部材１４の上側には、外部接続
用カバー１１０が回転自在に設けられている。外部接続
用カバー１１０は、カバー部材１４の開口部１４ｃを介
して内側円筒部１１ａに連結されており、ケーブル１３
の内周端部１３ａと外部のケーブル１５との接続部分を
保持するようになっている。The above-mentioned fixed body 12 is provided with a cover member 14 so as to cover the upper side of the space K and the periphery of the outer cylindrical portion 12a. The cover member 14 includes an upper cover 14a that covers the upper side of the space K and a cylindrical portion 14b that surrounds the outer cylindrical portion 12a.
It is attached to the fixed body 12 without rotating with respect to. An opening 14c is formed in the center of the upper cover 14a. A lower cover 12b that covers the lower side of the space K is formed integrally with the outer cylindrical portion 12a in the fixed body 12. Further, an external connection cover 110 is rotatably provided on the upper side of the cover member 14. The external connection cover 110 is connected to the inner cylindrical portion 11 a through the opening 14 c of the cover member 14, and the cable 13
It holds the connection portion between the inner peripheral end portion 13a and the external cable 15.
【０００６】そして、回転体１１は、例えば自動車のハ
ンドル部におけるステアリングホイール側に連結され、
固定体１２はステアリングコラム側に固定されるように
なっている。The rotating body 11 is connected to, for example, the steering wheel side of a steering wheel of an automobile,
The fixed body 12 is fixed to the steering column side.
【０００７】前述のように構成された相対回転部材間の
無接点信号伝達装置１０においては、例えば内側円筒部
１１ａが図７に示すように反時計方向に回転すると、ケ
ーブル１３が内側円筒部１１ａに巻き付くように移動す
る。このため、例えば、移動体２１の外側にあるケーブ
ル１３は、移動体２１の外周面２１ｅに当接し、さらに
一方の開口端２１ａに当接しながら反転して、同移動体
２１の内側に入り、内側円筒部１１ａに巻き付くように
なる。この際、移動体２１は、その一方の開口端２１ａ
がケーブル１３に押されて、反時計方向に回転する。In the contactless signal transmission device 10 between the relative rotating members configured as described above, for example, when the inner cylindrical portion 11a rotates counterclockwise as shown in FIG. 7, the cable 13 causes the inner cylindrical portion 11a to rotate. Move to wrap around. Therefore, for example, the cable 13 on the outer side of the moving body 21 comes into contact with the outer peripheral surface 21e of the moving body 21, and is turned over while coming into contact with the one open end 21a, and enters the inside of the moving body 21. It comes to wind around the inner cylindrical portion 11a. At this time, the moving body 21 has one opening end 21a.
Is pushed by the cable 13 and rotates counterclockwise.
【０００８】また、内側円筒部１１ａが外側円筒部１２
ａに対して時計方向に回転すると、内側円筒部１１ａに
巻き付いていたケーブル１３が巻き戻されて、周囲に移
動するようになる。このため、内側円筒部１１ａに巻き
付いていたケーブル１３は、移動体２１の内周面２１ｄ
に当接し、さらに他方の開口端２１ｂに当接しながら反
転して、移動体２１の外側に移動し、さらに外側円筒部
１２ａの内面に当接するようになる。この際、移動体２
１は、その他方の開口端２１ｂがケーブル１３に押され
て、時計方向に回転する。Further, the inner cylindrical portion 11a is replaced by the outer cylindrical portion 12
When it is rotated clockwise with respect to a, the cable 13 wound around the inner cylindrical portion 11a is unwound and moves around. For this reason, the cable 13 wound around the inner cylindrical portion 11 a has the inner peripheral surface 21 d of the moving body 21.
To the outer side of the moving body 21 and then to the inner surface of the outer cylindrical portion 12a. At this time, the moving body 2
1, the other open end 21b is pushed by the cable 13 and rotates clockwise.
【０００９】[0009]
【発明が解決しようとする課題】ところで、前述のよう
に構成された相対回転部材間の無接点信号伝達装置１０
においては、図８（ａ），（ｂ）に示すように、外部接
続用カバー１１０は、その裏面側にある内側円筒部１１
ａへの取付面１１０ａに等間隔で３箇所設けられた挿通
孔１１０ｂにタッピングねじ１７が挿通され、上カバー
１４ａを挟んで内側円筒部１１ａに螺着されているため
に、ガタ無く接合することができるが、タッピングねじ
１７が必要で部品点数が多くなると共に、タッピングね
じ１７の締め付け工数が必要となって、コスト高を招い
ていた。By the way, the contactless signal transmission device 10 between the relative rotating members configured as described above.
8A and 8B, the external connection cover 110 has the inner cylindrical portion 11 on the back surface side.
Since the tapping screws 17 are inserted into the insertion holes 110b provided at three positions on the attachment surface 110a to the a at equal intervals and are screwed to the inner cylindrical portion 11a with the upper cover 14a sandwiched therebetween, the tapping screws 17 should be joined together without play. However, the tapping screw 17 is required, the number of parts is increased, and the number of man-hours for tightening the tapping screw 17 is required, resulting in high cost.
【００１０】そこで、一方の外部接続用カバー１１０の
下面に先端部に鉤部を有する係止突起を設け、他方の内
側円筒部１１ａにはこの係止突起を受け入れる収容溝と
鉤部を係止する係合部とを設けることが考えられる。Therefore, a locking projection having a hook at the tip is provided on the lower surface of one external connection cover 110, and the accommodation groove and the hook for receiving this locking projection are locked to the other inner cylindrical portion 11a. It is conceivable to provide an engaging portion for
【００１１】しかしながら、外部接続用カバー１１０と
内側円筒部１１ａとを先端部に鉤部を有する係止突起と
その収容溝によって結合する構造では、合成樹脂を用い
てモールド成形によって製造される外部接続用カバー１
１０と内側円筒部１１ａの製造公差により、外部接続用
カバー１１０を内側円筒部１１ａに取り付けた際にガタ
つきが発生したり、外部からの振動によって係止突起が
収容溝から外れ易いという問題点がある。However, in the structure in which the external connection cover 110 and the inner cylindrical portion 11a are joined by the locking projection having the hook at the tip and the receiving groove thereof, the external connection manufactured by molding using synthetic resin. Cover 1
Due to the manufacturing tolerance between 10 and the inner cylindrical portion 11a, there is rattling when the external connection cover 110 is attached to the inner cylindrical portion 11a, and the locking projection is easily disengaged from the accommodation groove due to external vibration. There is.
【００１２】本発明は、上述した課題を解消するために
なされたもので、その目的は、相対回転部材間の無接点
信号伝達装置のような筒状体の端面にカバーを取り付け
るに際して、カバー側に先端に鉤部を有する係止突起を
設け、筒状体の端面にはこの係止突起の収容溝と鉤部を
係止する係合部とを設ける構造を採用し、タッピングね
じを不要にし、かつ、取付工数を低減すると共に、カバ
ーを筒状体に取り付けた後にガタつきの発生が防止で
き、また外部からの振動によって係止突起が収容溝から
外れ難くすることができる筒状体の端面へのカバー固定
構造を提供することにある。The present invention has been made to solve the above-mentioned problems, and an object thereof is to attach a cover to an end face of a cylindrical body such as a contactless signal transmission device between relative rotating members when the cover is attached. Adopting a structure in which a locking projection having a hook portion at the tip is provided, and an accommodation groove for this locking projection and an engaging portion for locking the hook portion are provided on the end surface of the tubular body, eliminating the need for tapping screws. In addition, the number of mounting steps can be reduced, rattling can be prevented from occurring after the cover is mounted on the tubular body, and the locking projection can be prevented from easily coming off the accommodation groove due to external vibration. To provide a structure for fixing the cover to.
【００１３】[0013]
【課題を解決するための手段】上記目的を達成する本発
明は、筒状体の端面にカバーを取り付ける際のカバーの
固定構造であって、筒状体の端面に取り付けられるカバ
ーの取付面に複数箇所突設され、先端部に鉤部を有する
係止突起と、筒状体の端面の、係止突起に対応する位置
に設けられた係止突起の収容溝と、筒状体の端面又はこ
の端面に取り付けられるカバーの取付面の少なくとも一
方の面に設けられたスペーサとからなり、係止突起の収
容溝には筒状体の内周面側に、鉤部を受け入れてロック
するロック部が設けられており、スペーサは筒状体の端
面にカバーが取り付けられた状態で押圧され、その復元
力によって鉤部とロック部との結合を強固にすることを
特徴としている。SUMMARY OF THE INVENTION The present invention for achieving the above object is a cover fixing structure when a cover is attached to an end face of a tubular body, and is a mounting surface of the cover attached to the end face of the tubular body. An engaging projection that is provided at a plurality of locations and has a hook at the tip, an accommodation groove for the engaging projection that is provided at a position corresponding to the engaging projection on the end surface of the tubular body, and the end surface of the tubular body or A lock part, which comprises a spacer provided on at least one surface of the mounting surface of the cover attached to this end surface, and which receives and locks the hook portion on the inner peripheral surface side of the cylindrical body in the accommodation groove of the locking projection. Is provided, the spacer is pressed with the cover attached to the end surface of the tubular body, and the restoring force of the spacer strengthens the coupling between the hook portion and the lock portion.
【００１４】スペーサとしては、カバーの取付面の所定
箇所、あるいは筒状体の端面の所定箇所に突設された先
細形状の突起であっても良く、また、カバーの取付面、
あるいは筒状体の端面のいずれかの所定箇所に突設され
た突条であっても良い。The spacer may be a tapered projection protruding from a predetermined position on the cover mounting surface or a predetermined position on the end surface of the tubular body.
Alternatively, it may be a ridge that is provided at any one of predetermined positions on the end surface of the tubular body.
【００１５】[0015]
【発明の実施の形態】以下、本発明の筒状体の端面への
カバー固定構造の実施の形態を、相対回転部材間の無接
点信号伝達装置のカバー固定構造を例にとって、図１〜
図５を用いて説明する。ただし、実施の形態の構成要素
が図６〜図８で説明した従来例の構成要素と共通する要
素には同一の符号を付し、その説明を簡略化する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a cover fixing structure for an end surface of a tubular body according to the present invention will be described below by taking a cover fixing structure of a contactless signal transmission device between relative rotating members as an example.
This will be described with reference to FIG. However, the constituent elements of the embodiment that are common to those of the conventional example described in FIGS. 6 to 8 are given the same reference numerals to simplify the description.
【００１６】まず、図１は、本発明の筒状体の端面への
カバー固定構造の実施の形態の一例の構成を示す組立斜
視図であり、図６で説明した外部接続用カバー１１０
を、回転体１１の内側円筒部１１ａに接合して固定する
ための構造が示されている。First, FIG. 1 is an assembly perspective view showing an example of the construction of an embodiment of a structure for fixing a cover to an end surface of a tubular body of the present invention, and the external connection cover 110 explained in FIG.
The structure for joining and fixing the inner cylindrical portion 11a of the rotating body 11 is shown.
【００１７】所定の肉厚を有する筒状体である内側円筒
部１１ａの上端面に合わされる外部接続用カバー１１０
の環状の取付面１１０ａには、この実施の形態では先端
部に鉤部１ａを有する係止突起１が等間隔で３箇所に設
けられている。この実施の形態では、係止突起１は円板
状の外部接続用カバー１１０の中心に対して同心円状の
位置に配置されており、係止突起１の壁面も同心円に沿
った湾曲面に形成されている。The external connection cover 110 fitted to the upper end surface of the inner cylindrical portion 11a, which is a cylindrical body having a predetermined wall thickness.
In this embodiment, locking projections 1 having hooks 1a at the tip are provided at three positions on the annular mounting surface 110a at equal intervals. In this embodiment, the locking projection 1 is arranged at a concentric position with respect to the center of the disk-shaped cover 110 for external connection, and the wall surface of the locking projection 1 is also formed into a curved surface along the concentric circle. Has been done.
【００１８】また、隣接する係止突起１の間の領域の取
付面１１０ａには、図３に詳細に示すように、各個が所
定距離Ｘだけ離れた２本の平行なアーム２Ａ，２Ｂから
構成される位置決め突起２が設けられている。この位置
決め突起２の平行なアーム２Ａ，２Ｂの間には隙間２ａ
が形成されており、この隙間２ａの先端側は隙間２ａの
間隔が広げられた拡開部２ｂとなっている。Further, as shown in detail in FIG. 3, the mounting surface 110a in the region between the adjacent locking projections 1 is composed of two parallel arms 2A and 2B, each of which is separated by a predetermined distance X. The positioning protrusion 2 is provided. A gap 2a is formed between the parallel arms 2A and 2B of the positioning protrusion 2.
Is formed, and the front end side of the gap 2a is an expanded portion 2b in which the gap 2a is widened.
【００１９】一方、筒状体である所定の肉厚を有する筒
状体である内側円筒部１１ａの上端面には、係止突起１
に対応する位置に係止突起の収容溝３が設けられ、位置
決め突起２に対応する位置に位置決め突起の収容溝４が
設けられている。この実施形態では、係止突起１の鉤部
１ａは内側円筒部１１ａの内周面側に設けられており、
係止突起の収容溝３には内側円筒部１１ａの内周面側に
この鉤部１ａを受け入れてロックするロック部である貫
通孔３ａが設けられている。なお、係止突起１の鉤部１
ａの高さが低い場合には、この貫通孔３ａは係止突起の
収容溝３の内周面に設けた凹部であっても良い。On the other hand, the locking projection 1 is provided on the upper end surface of the inner cylindrical portion 11a which is a tubular body having a predetermined wall thickness.
The receiving groove 3 for the locking protrusion is provided at a position corresponding to the position, and the receiving groove 4 for the positioning protrusion is provided at a position corresponding to the positioning protrusion 2. In this embodiment, the hook portion 1a of the locking projection 1 is provided on the inner peripheral surface side of the inner cylindrical portion 11a,
The accommodation groove 3 of the locking projection is provided with a through hole 3a which is a lock portion for receiving and locking the hook portion 1a on the inner peripheral surface side of the inner cylindrical portion 11a. In addition, the hook portion 1 of the locking protrusion 1
When the height of a is low, the through hole 3a may be a recess provided on the inner peripheral surface of the accommodation groove 3 of the locking projection.
【００２０】そして、外部接続用カバー１１０の取付面
１１０ａに突設された係止突起１の取付面１１０ａから
鉤部１ａまでの長さＨと、内側円筒部１１ａの上端面か
ら貫通孔３ａの上側の辺までの長さｈとは同じ長さに形
成されている。The length H from the mounting surface 110a of the locking projection 1 projecting on the mounting surface 110a of the external connection cover 110 to the hook 1a and the upper end surface of the inner cylindrical portion 11a to the through hole 3a. It is formed to have the same length as the length h to the upper side.
【００２１】また、位置決め突起の収容溝４には、図３
に詳細に示すように、位置決め突起２の２本の平行なア
ーム２Ａ，２Ｂの間の隙間Ｘに嵌合する幅Ｙを備えたリ
ブ４ａが設けられている。Further, in the accommodating groove 4 of the positioning protrusion, as shown in FIG.
As will be shown in detail, a rib 4a having a width Y that fits into the gap X between the two parallel arms 2A and 2B of the positioning protrusion 2 is provided.
【００２２】この幅Ｙは、Ｙ≦Ｘであるが、位置決め突
起２の２本の平行なアーム２Ａ，２Ｂの間の隙間Ｘに極
めて等しく形成されており、位置決め突起２が収容溝４
に挿入された時に、外部接続用カバー１１０の周方向の
ガタつきがほぼ０で嵌め合わされるようになっている。
このため、位置決め突起２の平行なアーム２Ａ，２Ｂの
間の隙間２ａの先端側には隙間２ａの間隔が広げられた
拡開部２ｂが設けられており、位置決め突起２が収容溝
４に挿入し易くなっている。The width Y is Y ≦ X, but is formed to be extremely equal to the gap X between the two parallel arms 2A and 2B of the positioning projection 2, and the positioning projection 2 is accommodated in the accommodating groove 4.
The external connection cover 110 is fitted to the back cover 110 with almost zero backlash in the circumferential direction.
For this reason, an expanding portion 2b having a wider gap 2a is provided on the tip side of the gap 2a between the parallel arms 2A and 2B of the positioning protrusion 2, and the positioning protrusion 2 is inserted into the accommodation groove 4. It's easy to do.
【００２３】なお、図１に示すように３箇所ずつ設けら
れた外部接続用カバー１１０の係止突起１と位置決め突
起２は、内側円筒部１１ａの係止突起の収容溝３と位置
決め突起の収容溝４に或る決められた一通りの状態でし
か係合しないように、係止突起１、位置決め突起２、係
止突起の収容溝３、及び位置決め突起の収容溝４の形状
が定められている。例えば、３つの係止突起１の内の１
つの係止突起１の幅が他よりも狭く形成されており、こ
れに対応する収容溝３の幅が狭く形成されていれば、外
部接続用カバー１１０と内側円筒部１１ａとは一通りの
状態でしか係合しないようにできる。As shown in FIG. 1, the locking projections 1 and the positioning projections 2 of the external connection cover 110, which are provided at three locations, respectively, are accommodated in the housing projections 3 and the positioning projections of the inner cylindrical portion 11a. The shapes of the locking projection 1, the positioning projection 2, the locking projection housing groove 3, and the positioning projection housing groove 4 are determined so that the groove 4 can be engaged only in one predetermined state. There is. For example, one of the three locking protrusions 1
If one locking projection 1 is formed to have a smaller width than the other, and the corresponding accommodation groove 3 is formed to have a smaller width, the external connection cover 110 and the inner cylindrical portion 11a are in a single state. It can be engaged only at.
【００２４】また、内側円筒部１１ａと外部接続用カバ
ー１１０が重ね合わされる位置に、位置合わせマークを
設けるようにしても良い。A position alignment mark may be provided at a position where the inner cylindrical portion 11a and the external connection cover 110 are superposed.
【００２５】更に、この実施の形態では、外部接続用カ
バー１１０の環状の取付面１１０ａに、僅かな高さを有
する先細形状のスペーサ６、例えば、図４（ａ）に示す
ような同じ半径を備えた半球状の突起６が、等間隔で３
箇所に設けられている。この実施の形態では、半球状の
突起６は円板状の外部接続用カバー１１０の中心に対し
て同心円状の位置に配置されている。この半球状の突起
６の形状は、図４（ｃ）に示すような円錐台形状でも良
い。Furthermore, in this embodiment, the tapered spacer 6 having a slight height, for example, the same radius as shown in FIG. 4A, is formed on the annular mounting surface 110a of the external connection cover 110. The hemispherical projections 6 provided are 3 at equal intervals.
It is provided in the place. In this embodiment, the hemispherical projections 6 are arranged concentrically with respect to the center of the disk-shaped cover 110 for external connection. The shape of the hemispherical protrusion 6 may be a truncated cone shape as shown in FIG.
【００２６】半球状の突起６を設ける位置は、等間隔で
なくても良いが、少なくとも３個の突起６を形成して、
外部接続用カバー１１０の環状の取付面１１０ａが内側
円筒部１１ａの上端面に平行になるようにする必要があ
る。また、この実施の形態では、半球状の突起６は外部
接続用カバー１１０の環状の取付面１１０ａに設けられ
ているが、図１に点線で示すように、内側円筒部１１ａ
の上端面に少なくとも３箇所設けても良いものである。
更に、半球状の突起６は、外部接続用カバー１１０の環
状の取付面１１０ａと内側円筒部１１ａの上部面に分散
して設けても良い。The positions of the hemispherical projections 6 need not be equidistant, but at least three projections 6 are formed,
It is necessary to make the annular mounting surface 110a of the external connection cover 110 parallel to the upper end surface of the inner cylindrical portion 11a. Further, in this embodiment, the hemispherical projection 6 is provided on the annular mounting surface 110a of the external connection cover 110, but as shown by the dotted line in FIG.
It is also possible to provide at least three locations on the upper end surface of the.
Further, the hemispherical projections 6 may be provided dispersedly on the annular mounting surface 110a of the external connection cover 110 and the upper surface of the inner cylindrical portion 11a.
【００２７】図２（ａ）は本発明の筒状体の端面へのカ
バー固定構造の組立状態を示す断面図であり、図１のよ
うに構成された外部接続用カバー１１０をカバー部材１
４の上カバー１４ａを挟んで内側円筒部１１ａに取り付
ける状態を示すものである。外部接続用カバー１１０を
内側円筒部１１ａに取り付ける際には、カバー部材１４
の開口部１４ｃに係止突起１と位置決め突起２を挿通さ
せ、係止突起１と位置決め突起２を内側円筒部１１ａ側
の対応する収容溝３，４に挿入する。FIG. 2A is a sectional view showing an assembled state of the cover fixing structure to the end face of the tubular body of the present invention, and the cover 110 for external connection constructed as shown in FIG.
4 shows the state of being attached to the inner cylindrical portion 11a with the upper cover 14a of No. 4 interposed therebetween. When attaching the external connection cover 110 to the inner cylindrical portion 11a, the cover member 14
The locking projections 1 and the positioning projections 2 are inserted into the openings 14c, and the locking projections 1 and the positioning projections 2 are inserted into the corresponding receiving grooves 3 and 4 on the inner cylindrical portion 11a side.
【００２８】すると、外部接続用カバー１１０の取付面
１１０ａに突設された係止突起１の取付面１１０ａから
鉤部１ａまでの長さＨと、内側円筒部１１ａの上端面か
ら貫通孔３ａの上側の辺までの長さｈとは同じ長さに形
成されているので、係止突起１の先端部にある鉤部１ａ
が内側円筒部１１ａの内周面に設けられた貫通孔３ａの
端部に係合する前に、外部接続用カバー１１０の取付面
１１０ａに突設された半球状の突起６が内側円筒部１１
ａの上端面に当接する。Then, the length H from the mounting surface 110a of the locking projection 1 projecting on the mounting surface 110a of the external connection cover 110 to the hook 1a and the upper end surface of the inner cylindrical portion 11a to the through hole 3a. Since the length h to the upper side is the same as the length h, the hook portion 1a at the tip of the locking projection 1 is formed.
Is engaged with the end of the through hole 3a provided on the inner peripheral surface of the inner cylindrical portion 11a, the hemispherical projection 6 protruding from the mounting surface 110a of the external connection cover 110 is attached to the inner cylindrical portion 11a.
It contacts the upper end surface of a.
【００２９】このままでは係止突起１の先端部にある鉤
部１ａが内側円筒部１１ａの内周面に設けられた貫通孔
３ａの端部に係合しないので、少し力を加えて外部接続
用カバー１１０を内側円筒部１１ａに押し付けると、合
成樹脂製の半球状の突起６は図４（ｂ）に示すように復
元力を残した状態で押圧されて圧縮変形し、この結果、
係止突起１の先端部にある鉤部１ａが内側円筒部１１ａ
の内周面に設けられた貫通孔３ａの端部に係合し、外部
接続用カバー１１０はカバー部材１４の上カバー１４ａ
を挟んで簡単に内側円筒部１１ａに固着される。In this state, the hook portion 1a at the tip of the locking projection 1 does not engage with the end of the through hole 3a provided on the inner peripheral surface of the inner cylindrical portion 11a, so a slight force is applied for external connection. When the cover 110 is pressed against the inner cylindrical portion 11a, the hemispherical projections 6 made of synthetic resin are pressed and compressed and deformed with a restoring force remaining, as shown in FIG.
The hook portion 1a at the tip of the locking projection 1 is the inner cylindrical portion 11a.
The external connection cover 110 engages with the end of the through hole 3a provided on the inner peripheral surface of the cover member 14 and the upper cover 14a of the cover member 14.
It is easily fixed to the inner cylindrical portion 11a by sandwiching.
【００３０】この状態では圧縮変形された合成樹脂製の
半球状の突起６の復元力によって鉤部１ａと貫通孔３ａ
とが強固に結合されるので、位置決め突起２に多少のガ
タがあっても、外部接続用カバー１１０と内側円筒部１
１ａとは強固にガタつき無く固着される。In this state, the hook 1a and the through hole 3a are generated by the restoring force of the compression-deformed hemispherical projection 6 made of synthetic resin.
Since they are firmly coupled with each other, the external connection cover 110 and the inner cylindrical portion 1 can be secured even if the positioning protrusion 2 has some play.
It is firmly fixed to 1a without backlash.
【００３１】図２（ｂ）は図２（ａ）の組立後の断面図
である。外部接続用カバー１１０が内側円筒部１１ａに
固着された状態では、３箇所の位置決め突起２とその収
容溝４により、外部接続用カバー１１０は内側円筒部１
１ａ上の所定位置にピッタリと嵌め合わされる。そし
て、圧縮変形状態にある半球状の突起６の復元力によ
り、係止突起１の鉤部１ａが貫通孔３ａに強固に密着し
ているので、外部接続用カバー１１０は内側円筒部１１
ａに対して、周方向、或いは半径方向に動くことはな
い。FIG. 2 (b) is a sectional view after the assembly of FIG. 2 (a). In the state where the external connection cover 110 is fixed to the inner cylindrical portion 11a, the external connection cover 110 is formed by the three positioning protrusions 2 and the accommodation grooves 4 thereof.
It is fitted exactly at a predetermined position on 1a. Since the hook portion 1a of the locking protrusion 1 is firmly attached to the through hole 3a by the restoring force of the hemispherical protrusion 6 in the compression deformed state, the external connection cover 110 has the inner cylindrical portion 11a.
It does not move in the circumferential direction or the radial direction with respect to a.
【００３２】図５（ａ）は、半球状の突起６の設置位置
の別の実施形態の形状を示す外部接続用カバー１１０の
下面図である。この実施の形態では、半球状の突起６が
係止突起１の外側の部位の外部接続用カバー１１０の取
付面１１０ａ上に突設されている。FIG. 5A is a bottom view of the external connection cover 110 showing the shape of another embodiment of the installation position of the hemispherical projections 6. In this embodiment, the hemispherical projection 6 is provided on the mounting surface 110a of the external connection cover 110 at a portion outside the locking projection 1.
【００３３】図５（ｂ）は半球状の突起６の代わりに、
突条６Ａが外部接続用カバー１１０の取付面１１０ａ上
に等間隔で、円板状の外部接続用カバー１１０の中心に
対して放射状に突設されている。この突条６Ａは圧縮力
によって湾曲したり、傾斜したりして復元力を保持しつ
つ圧縮変形する。In FIG. 5B, instead of the hemispherical projection 6,
The protrusions 6A are provided on the mounting surface 110a of the external connection cover 110 at equal intervals and project radially from the center of the disk-shaped external connection cover 110. The ridges 6A are curved or inclined by the compressive force and are compressed and deformed while maintaining the restoring force.
【００３４】なお、図５（ｂ）に示した実施の形態で
は、外部接続用カバー１１０の取付面１１０ａ上に位置
決め突起２は設けられていない。このように、位置決め
突起２がなくても、圧縮変形状態にある突条６Ａの復元
力により、係止突起１の鉤部１ａが貫通孔３ａに強固に
密着しているので、外部接続用カバー１１０は内側円筒
部１１ａに対して、周方向、或いは半径方向に動くこと
はない。In the embodiment shown in FIG. 5B, the positioning protrusion 2 is not provided on the mounting surface 110a of the external connection cover 110. As described above, even without the positioning projection 2, the hook portion 1a of the locking projection 1 is firmly adhered to the through hole 3a by the restoring force of the ridge 6A in the compressed and deformed state. 110 does not move in the circumferential direction or the radial direction with respect to the inner cylindrical portion 11a.
【００３５】図５（ｃ）は、突条６Ａの設置位置の別の
実施形態の形状を示す外部接続用カバー１１０の下面図
である。この実施の形態では、突条６Ａが係止突起１の
外側の壁面に連続して、外部接続用カバー１１０の取付
面１１０ａ上に突設されている。また、この突条６Ａも
内側円筒部１１ａに設けても、あるいは両方に分散して
設けても良い。FIG. 5C is a bottom view of the external connection cover 110 showing the shape of another embodiment of the installation position of the ridge 6A. In this embodiment, the protrusion 6A is continuously provided on the outer wall surface of the locking protrusion 1 and protrudes from the mounting surface 110a of the external connection cover 110. Further, the protrusions 6A may be provided on the inner cylindrical portion 11a, or may be provided in a dispersed manner on both of them.
【００３６】さらに、スペーサとしての突起、突条の形
状は以上説明した実施の形態に限定されるものではな
く、圧縮された時に変形して復元力を保つような形状で
あればどのような形状でも良い。Further, the shapes of the protrusions and the ridges as the spacers are not limited to those in the above-described embodiment, and any shape can be used as long as it is deformed when compressed to maintain the restoring force. But good.
【００３７】以上、本発明の実施の形態を回転部材間の
無接点信号伝達装置における外部接続用カバー１１０と
内側円筒部１１ａを例にとって説明したが、本発明は、
その他の肉厚のある筒状体にカバーを取り付ける際の構
造として広く適用することが可能である。The embodiment of the present invention has been described above by taking the external connection cover 110 and the inner cylindrical portion 11a in the contactless signal transmission device between the rotating members as an example.
It can be widely applied as a structure for attaching the cover to other thick cylindrical bodies.
【００３８】[0038]
【発明の効果】以上説明したように、本発明によれば回
転部材間の無接点信号伝達装置のような筒状体の端面に
カバーを取り付けるに際して、カバー側に先端に鉤部を
有する係止突起を設け、筒状体の端面にはこの係止突起
の収容溝と鉤部をロックするロック部とを設ける構造を
採用し、更には、筒状体とカバーの少なくとも一方の合
わせ面に突設したスペーサによって筒状体とカバーとが
スペーサの復元力で離れる方向の力を受けながら結合し
ているので、タッピングねじを不要にし、かつ、取付工
数を低減すると共に、カバーを筒状体に取り付けた後に
ガタつきの発生が防止でき、また外部からの振動によっ
て係止突起が収容溝から外れ難くすることができるとい
う効果がある。As described above, according to the present invention, when a cover is attached to the end surface of a cylindrical body such as a contactless signal transmission device between rotating members, a lock having a hook portion at its tip is provided on the cover side. A structure is provided in which a protrusion is provided, and an accommodation groove for the locking protrusion and a lock portion for locking the hook portion are provided on the end surface of the tubular body, and further, a protrusion is provided on at least one mating surface of the tubular body and the cover. Since the cylindrical body and the cover are joined by the spacer provided while receiving the force in the direction of separation due to the restoring force of the spacer, the tapping screw is unnecessary, and the mounting man-hour is reduced, and the cover is made into the cylindrical body. There is an effect that rattling can be prevented from being generated after the mounting, and that the locking projection can be made difficult to come off from the accommodation groove by the vibration from the outside.
【図１】本発明の筒状体の端面へのカバー固定構造の実
施の形態の一例の構成を示す組立斜視図である。FIG. 1 is an assembled perspective view showing a configuration of an example of an embodiment of a cover fixing structure to an end surface of a tubular body of the present invention.
【図２】（ａ）は本発明の筒状体の端面へのカバー固定
構造の組立状態を示す断面図であり、（ｂ）は（ａ）の
組立後の断面図である。FIG. 2A is a sectional view showing an assembled state of a cover fixing structure for an end surface of a tubular body of the present invention, and FIG. 2B is a sectional view after assembly of FIG.
【図３】本発明における位置決め突起とその収容溝に設
けられたリブの公差を説明する部分拡大断面図である。FIG. 3 is a partially enlarged cross-sectional view illustrating a tolerance of a positioning protrusion and a rib provided in a housing groove of the present invention.
【図４】（ａ）はスペーサが半球状の突起である場合の
筒状体とカバーとの取付面の部分拡大断面図であり、
（ｂ）は（ａ）の半球状の突起が圧縮力によって変形す
る状態を説明する説明図であり、（ｃ）はスペーサが円
錐台形状の突起である場合の筒状体とカバーとの取付面
の部分拡大断面図である。FIG. 4A is a partially enlarged cross-sectional view of a mounting surface between a tubular body and a cover when the spacer is a hemispherical protrusion,
(B) is explanatory drawing explaining the state which the hemispherical protrusion of (a) deform | transforms by a compressive force, (c) attaches a cylindrical body and a cover in case a spacer is a truncated cone-shaped protrusion. It is a partial expanded sectional view of a surface.
【図５】（ａ）は本発明におけるスペーサが半球状の突
起である場合の、スペーサの別の設置場所を示す外部接
続用カバーを下面側から見た斜視図であり、（ｂ）は本
発明におけるスペーサが突条である場合の、スペーサの
設置場所の一つの実施形態を示す外部接続用カバーを下
面側から見た斜視図であり、（ｃ）は本発明におけるス
ペーサが突条である場合の（ｂ）とは別のスペーサの設
置場所を示す外部接続用カバーを下面側から見た斜視図
である。FIG. 5 (a) is a perspective view of the external connection cover showing another place of installation of the spacer in the case where the spacer according to the present invention is a hemispherical projection, as seen from the lower surface side, and FIG. FIG. 2 is a perspective view of an external connection cover showing one embodiment of a place where the spacer is installed when the spacer in the invention is a ridge, and (c) shows the spacer in the present invention as a ridge. It is the perspective view which looked at the cover for external connection which shows the installation place of the spacer different from the case of (b) from the lower surface side.
【図６】従来技術における相対回転部材間の無接点信号
伝達装置の構造を示す分解斜視図である。FIG. 6 is an exploded perspective view showing the structure of a contactless signal transmission device between relative rotating members in the prior art.
【図７】相対回転部材間の無接点信号伝達装置の動作を
説明する要部断面図である。FIG. 7 is a cross-sectional view of main parts for explaining the operation of the non-contact signal transmission device between relative rotating members.
【図８】従来の相対回転部材間の無接点信号伝達装置に
おける外部接続用カバーと内側円筒部との接続における
問題点を示す説明図である。FIG. 8 is an explanatory diagram showing a problem in connection between the external connection cover and the inner cylindrical portion in the conventional contactless signal transmission device between relative rotating members.
１ 係止突起 １ａ 鉤部 ２ 位置決め突起 ２Ａ，２Ｂ アーム ２ａ 隙間 ２ｂ 拡開部 ３ 収容溝 ３ａ 貫通孔（ロック部） ４ 収容溝 ４ａ リブ ６ スペーサ（半球状の突起） ６Ａ スペーサ（突条） １０ 相対回転部材間の無接点信号伝達装置 １１ 回転体 １１ａ 内側円筒部 １２ 固定体 １２ａ 外側円筒部 １３ フレキシブルフラットケーブル １４ カバー部材 １４ａ 上カバー １４ｂ 円筒部 １４ｃ 開口部 １７ タッピングねじ ２１ 移動体 １１０ 外部接続用カバー １１０ａ 取付面 １１０ｂ 挿通孔 Ｋ 空間 DESCRIPTION OF SYMBOLS 1 Locking projection 1a Hook part 2 Positioning projection 2A, 2B Arm 2a Gap 2b Expanding part 3 Storage groove 3a Through hole (lock part) 4 Storage groove 4a Rib 6 Spacer (hemispherical projection) 6A Spacer (projection) 10 Non-contact signal transmission device between relative rotating members 11 rotating body 11a inner cylindrical portion 12 fixed body 12a outer cylindrical portion 13 flexible flat cable 14 cover member 14a upper cover 14b cylindrical portion 14c opening 17 tapping screw 21 moving body 110 for external connection Cover 110a Mounting surface 110b Insertion hole K Space
Claims (3)
カバーの固定構造であって、 前記筒状体の端面に取り付けられる前記カバーの取付面
に複数箇所突設され、先端部に鉤部を有する係止突起
と、 前記筒状体の端面の、前記係止突起に対応する位置に設
けられた係止突起の収容溝と、 前記筒状体の端面又はこの端面に取り付けられる前記カ
バーの取付面の少なくとも一方の面に設けられたスペー
サとからなり、 前記係止突起の収容溝には前記筒状体の内周面側に、前
記鉤部を受け入れてロックするロック部が設けられてお
り、前記スペーサは前記筒状体の端面に前記カバーが取
り付けられた状態で押圧され、その復元力によって前記
鉤部と前記ロック部との結合を強固にすることを特徴と
する筒状体の端面へのカバー固定構造。1. A structure for fixing a cover when a cover is attached to an end face of a tubular body, wherein a plurality of protrusions are provided on an attaching surface of the cover attached to the end face of the tubular body, and a hook portion is provided at a tip end portion. A locking projection having a locking groove, an accommodation groove for the locking projection provided at a position corresponding to the locking projection on the end surface of the tubular body, and an end surface of the tubular body or the cover attached to the end surface. A spacer provided on at least one surface of the mounting surface, and a lock portion for receiving and locking the hook portion is provided in the accommodation groove of the locking projection on the inner peripheral surface side of the tubular body. The spacer is pressed in a state where the cover is attached to the end surface of the tubular body, and the restoring force of the spacer strengthens the coupling between the hook portion and the lock portion. Cover fixing structure to the end face.
所定箇所、あるいは前記筒状体の端面の所定箇所に突設
された先細形状の突起であることを特徴とする請求項１
に記載の筒状体の端面へのカバー固定構造。2. The spacer is a tapered protrusion protruding from a predetermined location on the mounting surface of the cover or a predetermined location on the end surface of the tubular body.
A structure for fixing a cover to an end surface of the tubular body according to the item 1.
所定箇所、あるいは前記筒状体の端面の所定箇所に突設
された突条であることを特徴とする請求項１に記載の筒
状体の端面へのカバー固定構造。3. The tubular member according to claim 1, wherein the spacer is a ridge protruding from a predetermined location on the mounting surface of the cover or a predetermined location on the end surface of the tubular body. Cover fixing structure to the end face of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31103895A JPH09151922A (en) | 1995-11-29 | 1995-11-29 | Fixing structure of cover to end surface of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31103895A JPH09151922A (en) | 1995-11-29 | 1995-11-29 | Fixing structure of cover to end surface of cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09151922A true JPH09151922A (en) | 1997-06-10 |
Family
ID=18012378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31103895A Pending JPH09151922A (en) | 1995-11-29 | 1995-11-29 | Fixing structure of cover to end surface of cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09151922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006012648B3 (en) * | 2006-03-20 | 2007-11-22 | Airbus Deutschland Gmbh | Fastening socket for retaining of fastener, has two tube jointing sleeves, where one tube jointing sleeve and cover are manufactured from plastic material using injection molding process and are flexibly connected together by film hinge |
-
1995
- 1995-11-29 JP JP31103895A patent/JPH09151922A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006012648B3 (en) * | 2006-03-20 | 2007-11-22 | Airbus Deutschland Gmbh | Fastening socket for retaining of fastener, has two tube jointing sleeves, where one tube jointing sleeve and cover are manufactured from plastic material using injection molding process and are flexibly connected together by film hinge |
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