JP2010015923A - F type connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an F type connector, capable of being attached to a terminal of a coaxial cable without needing a tool while surely maintaining the connecting state with the cable. <P>SOLUTION: The connector includes a connecting nut 1 to be screwed to a screw cylinder protruded on a device; a shell 2 having one end turnably assembled to the connecting nut 1, and including, at the other end, an insert cylindrical part 2b having annular locking stepped parts 5 juxtaposed along the axial line; a split cylinder to be fitted onto the insert cylindrical part 2b from the outside of a coaxial cable c inserted to the insert cylindrical part 2b of the shell 2, the split cylinder having, on the inner circumferential surface, protruding edges 6 to be locked by the annular locking stepped parts 5; and a sheath cylinder 4 for inserting the coaxial cable c along the axial line, having, on the inner circumferential surface, locking protruding edges 9 to be locked by annular locking stepped parts 8 provided on the circumferential side of the split cylinder 3 along the axial line. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、概し、テレビ等の高周波信号を伝達する同軸ケーブルの端末に設けるＦ型コネクタに関するものである。   The present invention generally relates to an F-type connector provided at a terminal of a coaxial cable that transmits a high-frequency signal such as a television.

Ｆ型コネクタは、機器に突設した螺子筒に螺合する接続ナットと、該接続ナットを一端に回動自在に組付け、他端に周面に環状係止段部を軸線に沿わせて並設した挿入筒部を備えたシェルおよび該シェルの挿入筒部を嵌挿した同軸ケーブルの外側から縮径して前記挿入筒部に圧着する圧着リングとで構成しているのが一般である（例えば、特許文献１）。   The F-type connector has a connection nut that is screwed into a screw cylinder projecting from the device, the connection nut is rotatably assembled at one end, and an annular locking step portion is provided on the peripheral surface along the axis at the other end. It is common to comprise a shell provided with juxtaposed insertion tube portions and a crimping ring for reducing the diameter from the outside of the coaxial cable into which the insertion tube portion of the shell is inserted and crimping to the insertion tube portion. (For example, patent document 1).

実開平２−１１９３７６号公報Japanese Utility Model Publication No. 2-119376

前記従来構造のものは、同軸ケーブルに接続するには（同軸ケーブルの端末に取付けるには）、圧着リングを圧着して（かしめて）当該ケーブルとシェルとを接続させる構成を採るので、圧着作業するための工具を用意しておかねばならないし、また、該作業の誤作業により接続状態が簡単に崩れる恐れがある等の問題点がある。   The conventional structure has a configuration in which a crimping ring is crimped (crimped) to connect to the coaxial cable (to attach to the end of the coaxial cable), and the cable and the shell are connected. It is necessary to prepare a tool for this, and there is a problem that the connection state may be easily broken due to an erroneous operation.

本発明は、工具を必要としないで、しかも、同軸ケーブルとの接続状態を確実に維持できるＦ型コネクタを提供することを目的として創案したものである。   The present invention was devised for the purpose of providing an F-type connector that does not require a tool and that can reliably maintain a connection state with a coaxial cable.

機器に突設した螺子筒に螺合する接続ナットと、該接続ナットを一端に回動自在に組付け、他端に周面に環状係止段部を軸線に沿わせて並設した挿入筒部を備えたシェルと、該シェルの挿入筒部を嵌挿した同軸ケーブルの外側から前記挿入筒部に外嵌し、しかも、内周面に前記環状係止段部に係止する突縁を設けた割り筒および該割り筒の周側に軸線に沿わせて並設した環状係止段部に係止する係止突縁を内周面に設け、軸線に沿って前記同軸ケーブルを挿通する套装筒とで成る構成としたものである。   A connection nut that is screwed into a screw cylinder projecting from the device, and an insertion cylinder in which the connection nut is rotatably assembled at one end and an annular locking step portion is arranged along the axis on the peripheral surface at the other end. And a protruding edge that is externally fitted to the insertion tube portion from the outside of the coaxial cable into which the insertion tube portion of the shell is inserted, and that is engaged with the annular locking step portion on the inner peripheral surface. Provided on the inner circumferential surface is a split tube provided and an engagement protrusion that is engaged with an annular locking step portion provided in parallel along the axis on the peripheral side of the split tube, and the coaxial cable is inserted along the axis. It is configured to include a sleeve.

本発明によれば、同軸ケーブルに挿入した挿入筒部に同軸ケーブルの外側から割り筒を外嵌させて、割り筒の内周面の突縁を適宜の環状係止段部に合わせ、割り筒の外側には套装筒を配してその内周面の係止突縁を割り筒の係止段部に係止させることにより同軸ケーブルの端末に確実に取り付けることができ、しかも、その作用に特別な工具を必要としないから、現場で用いるに好適である。   According to the present invention, the split cylinder is externally fitted from the outside of the coaxial cable to the insertion cylinder part inserted into the coaxial cable, and the projecting edge of the inner peripheral surface of the split cylinder is aligned with the appropriate annular locking step part. It is possible to securely attach to the end of the coaxial cable by arranging a sleeve tube on the outer side and locking the locking projection edge of the inner peripheral surface to the locking step portion of the split tube. Since no special tool is required, it is suitable for use in the field.

図面は本発明に係るＦ型コネクタの一実施例を示し、図１は使用状態を示す断面図、図２は一部欠截分解図、図３は割り筒の断面図、図４は図３の側面図、図５は套装筒の一部欠截正面図、図６は図５の側面図である。   FIG. 1 is a sectional view showing a state of use, FIG. 2 is a partially broken exploded view, FIG. 3 is a sectional view of a split cylinder, and FIG. FIG. 5 is a partially cutaway front view of the sleeve, and FIG. 6 is a side view of FIG.

本発明に係るＦ型コネクタＡは、接続ナット１とシェル２と割り筒３および套装筒４とで構成し、接続ナット１はねじ穴（図示省略）を内腔部の一側に設け、他側には前記シェル２を基部の一側を挿入して回動自在に組付け（この組付け手段は公知であるので説明は省略）たもので、前記ねじ穴において機器に備えた螺子（雄ねじ）筒に螺合して機器に取付けるものである。   The F-type connector A according to the present invention includes a connection nut 1, a shell 2, a split cylinder 3, and a sleeve 4 and the connection nut 1 is provided with a screw hole (not shown) on one side of a lumen portion. On the side, the shell 2 is inserted into one side of the base so as to be rotatable (this assembly means is well known and will not be described). ) It is screwed into a cylinder and attached to the device.

シェル２は、一端を接続ナット１に組付けた基部２ａの他端に挿入筒部２ｂを突設して構成し、挿入筒部２ｂの周側には、該挿入筒部２ｂの基部から自由端方向に漸次径を狭くした環状係止段部５，…を軸線に沿わせて並設し、各環状係止段部５の、挿入筒部２ｂ奥行側の大径部に割り筒３に設けた突縁６が係止して該割り筒３の挿入筒部２ｂからの離脱を防ぐようにしてある。   The shell 2 is configured by projecting an insertion tube portion 2b at the other end of the base portion 2a having one end assembled to the connection nut 1, and is free from the base portion of the insertion tube portion 2b on the circumferential side of the insertion tube portion 2b. The annular locking step portions 5,..., Whose diameters are gradually narrowed in the end direction, are arranged in parallel along the axis, and the split tube 3 is divided into the large diameter portion of each annular locking step portion 5 on the depth side of the insertion tube portion 2b. The provided protruding edge 6 is locked to prevent the split cylinder 3 from being detached from the insertion cylinder portion 2b.

割り筒３は前記接続ナット１とシェル２が金属で構成するに対し合成樹脂で構成したもので、前記接続ナット１側に配する一端から他端方向に外径を次第に縮径し、軸線に沿わせてスリット７を形成することによって弾性変形し易くした割り筒体で成り、内周面の、軸線方向の中間部には軸線を取り囲むようにして前記突縁６，…を、等間隔を存して突設し、また、外周面には、外径が大径な側の一端から小径な側の一端方向に、前記環状係止段部３と同様に漸次径を狭くした環状係止段部８，…を軸線に沿わせて並設したものである。   The split cylinder 3 is made of synthetic resin, whereas the connection nut 1 and the shell 2 are made of metal, and the outer diameter is gradually reduced from one end arranged on the connection nut 1 side to the other end direction to the axis. The slits 7 are formed along the slit cylinders so as to be easily elastically deformed, and the projecting edges 6,... An annular lock having a gradually reduced diameter in the same manner as the annular lock step 3 from the one end on the outer diameter side toward the one end on the smaller diameter side. Steps 8 are arranged in parallel along the axis.

套装筒４は、割り筒３と同様に合成樹脂で型成形したもので、有底筒体で成り、内腔部の軸線方向の中間部に、適宜の前記環状係止段部８に係止する、軸線を取り囲み、しかも、突条状にして係止突縁９を設け、この係止突縁９と開口端４´間の内周面４ａを、開口端４´から係止突縁９方向に、割り筒３の外径とほぼ同じ角度のテーパ面が生じるように、漸次縮径させ、開口端４´側の一端に対応する他端の閉塞部片４´´の中央には同軸ケーブルｃの挿通孔１０を設けて構成したものである。   The sleeve 4 is molded with a synthetic resin in the same manner as the split tube 3 and is formed of a bottomed cylinder. The sleeve 4 is locked to an appropriate annular locking step 8 at the axial center of the lumen. The locking protrusion edge 9 is provided in the shape of a ridge that surrounds the axis, and the inner peripheral surface 4a between the locking protrusion edge 9 and the opening end 4 ′ is connected to the locking protrusion edge 9 from the opening end 4 ′. In the direction, the diameter is gradually reduced so that a tapered surface having an angle substantially the same as the outer diameter of the split cylinder 3 is generated, and is coaxial with the center of the closing portion piece 4 ″ at the other end corresponding to one end on the opening end 4 ′ side. The insertion hole 10 of the cable c is provided and configured.

そして、同軸ケーブルｃを套装筒４と割り筒３に順次貫通させるようにしてこれらを同軸ケーブルｃに組付け、同軸ケーブルｃの外部導体を構成するアルミ箔と内部絶縁体（の一部である編組）の間に、接続ナット１を組付けたシェル２の挿入筒部２ｂを挿入してシェル２を同軸ケーブルｃの端末に組付け、挿入筒部２ｂを内側に配した同軸ケーブルｃの外被部（端末）に割り筒３をケーブルｃに沿って移動させて外嵌し、次いで、該割り筒３の外側に、套装筒４をケーブルｃに沿って移動させて外嵌させることによってコネクタＡを構成する各部材１，２，３，４は互いに組み付けられ、同軸ケーブルｃの端末に取付けられる。そして、この状態で接続ナット１を機器に備えた螺子筒に螺合することにより、予め端末処理して突出させた同軸ケーブルの内部導体が機器と電気的に接続されるのである。   Then, the coaxial cable c is sequentially penetrated through the sleeve 4 and the split cylinder 3 so as to be assembled to the coaxial cable c, and is a part of the aluminum foil and the internal insulator constituting the outer conductor of the coaxial cable c. The insertion tube portion 2b of the shell 2 to which the connection nut 1 is assembled is inserted during the braiding), the shell 2 is assembled to the end of the coaxial cable c, and the outside of the coaxial cable c having the insertion tube portion 2b arranged on the inside. By moving the split tube 3 along the cable c and externally fitting it to the covered part (terminal), and then moving the sleeve 4 along the cable c and externally fitting it to the outside of the split tube 3 The members 1, 2, 3, 4 constituting A are assembled to each other and attached to the end of the coaxial cable c. Then, in this state, the connection nut 1 is screwed into a screw cylinder provided in the device, so that the inner conductor of the coaxial cable that has been subjected to terminal processing and protruded in advance is electrically connected to the device.

使用状態を示す断面図。Sectional drawing which shows a use condition. 一部欠截分解図。Partially missing exploded view. 割り筒の断面図。Sectional drawing of a split cylinder. 図３の側面図。FIG. 4 is a side view of FIG. 3. 套装筒の一部欠截正面図。The partial missing front view of a sleeve. 図５の側面図。The side view of FIG.

符号の説明Explanation of symbols

１ 接続ナット
２ シェル
２ｂ 挿入筒部
３ 割り筒
４ 套装筒
５ 環状係止段部
６ 突縁
８ 係止段部
９ 係止突縁
ｃ 同軸ケーブル DESCRIPTION OF SYMBOLS 1 Connection nut 2 Shell 2b Insertion cylinder part 3 Split cylinder 4 Sleeve cylinder 5 Annular locking step part 6 Projection edge 8 Locking step part 9 Locking projection edge c Coaxial cable

Claims (1)

機器に突設した螺子筒に螺合する接続ナットと、該接続ナットを一端に回動自在に組付け、他端に周面に環状係止段部を軸線に沿わせて並設した挿入筒部を備えたシェルと、該シェルの挿入筒部を嵌挿した同軸ケーブルの外側から前記挿入筒部に外嵌し、しかも、内周面に前記環状係止段部に係止する突縁を設けた割り筒および該割り筒の周側に軸線に沿わせて並設した環状係止段部に係止する係止突縁を内周面に設け、軸線に沿って前記同軸ケーブルを挿通する套装筒とで成るＦ型コネクタ。   A connection nut that is screwed into a screw cylinder projecting from the device, and an insertion cylinder in which the connection nut is rotatably assembled at one end and an annular locking step portion is arranged along the axis on the peripheral surface at the other end. And a protruding edge that is externally fitted to the insertion tube portion from the outside of the coaxial cable into which the insertion tube portion of the shell is inserted, and that is engaged with the annular locking step portion on the inner peripheral surface. Provided on the inner circumferential surface is a split tube provided and an engagement protrusion that is engaged with an annular locking step portion provided in parallel along the axis on the peripheral side of the split tube, and the coaxial cable is inserted along the axis. F type connector consisting of a sleeve.

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