JP5772580B2 - Wire fixing member - Google Patents

Wire fixing member Download PDF

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JP5772580B2
JP5772580B2 JP2011287572A JP2011287572A JP5772580B2 JP 5772580 B2 JP5772580 B2 JP 5772580B2 JP 2011287572 A JP2011287572 A JP 2011287572A JP 2011287572 A JP2011287572 A JP 2011287572A JP 5772580 B2 JP5772580 B2 JP 5772580B2
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electric wire
mounting hole
housing
fixing member
holding cylinder
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JP2013137899A (en
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浩二 坂倉
浩二 坂倉
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Description

本発明は、筐体の内外を貫通した電線を筐体に固定する電線固定部材に関する。   The present invention relates to an electric wire fixing member that fixes an electric wire penetrating the inside and outside of a housing to the housing.

この種の電線固定部材として、例えば下記特許文献１に記載のものが知られている。この電線固定部材は、ハウジングと、このハウジングの内部に装着されて電線を抜け止めする金属製の抜け止め部材と、ハウジングを覆うシールドシェルとを備え、このシールドシェルを筐体に固定することによってハウジングが固定されている。すなわち、電線は、抜け止め部材、ハウジング、およびシールドシェルの３つの部材によって筐体に固定されている。   As this type of electric wire fixing member, for example, one described in Patent Document 1 below is known. The electric wire fixing member includes a housing, a metal retaining member that is attached inside the housing and prevents the electric wire from being detached, and a shield shell that covers the housing, and by fixing the shield shell to the housing. The housing is fixed. That is, the electric wire is fixed to the housing by three members, a retaining member, a housing, and a shield shell.

特開２００２−１３４９５３号公報JP 2002-134953 A

しかしながら、上記の構成では、金属製の抜け止め部材を電線にかしめて圧着しているため、電線が強く引っ張られるなどして、電線の絶縁被覆が破れた場合には、電線の内部に水が浸入するおそれがある。   However, in the above configuration, since the metal retaining member is caulked and crimped to the electric wire, when the electric wire is strongly pulled or the like, and the insulating coating of the electric wire is broken, water is introduced into the electric wire. There is a risk of intrusion.

本発明は上記のような事情に基づいて完成されたものであって、電線の絶縁被覆が破れて内部に水が浸入することを規制することを目的とする。   This invention is completed based on the above situations, Comprising: It aims at controlling that the insulation coating of an electric wire is torn and water penetrate | invades inside.

本発明は、筐体の内外を貫通した電線を前記筐体に固定する電線固定部材であって、装着孔を有し、その装着孔の前端開口からこの前端開口の後方に位置する後端開口に向かうにつれて軸心側に近づく傾斜面が前記装着孔の内部に形成されたシールドシェルと、筒状をなす保持筒部を有し、その保持筒部が前記電線に外嵌された状態で前記装着孔に装着される樹脂製の抜け止め部材と、を備え、前記保持筒部には、前記装着孔の前記傾斜面に係合することで前記装着孔の軸心側に移動し、前記電線を押圧して同電線を保持する可動片が設けられており、前記抜け止め部材が前記装着孔に装着された状態では、前記保持筒部の後端が装着孔の後端開口から後方に突出している構成としたところに特徴を有する。
The present invention end after a wire fixing member for fixing the electric wire passing through the inside and outside of the housing to the housing, has a mounting hole, located before end opening behind the front end opening of the mounting hole In the state where the inclined surface approaching the axial center as it goes to the opening has a shield shell formed inside the mounting hole and a cylindrical holding cylinder, and the holding cylinder is externally fitted to the electric wire. A retaining member made of resin to be mounted in the mounting hole, and the holding cylinder portion is moved to the axial center side of the mounting hole by engaging with the inclined surface of the mounting hole, A movable piece that presses the electric wire and holds the electric wire is provided, and when the retaining member is mounted in the mounting hole, the rear end of the holding cylinder portion is rearward from the rear end opening of the mounting hole. It is characterized by a protruding configuration.

このような構成によると、樹脂製の抜け止め部材を用いて電線を抜け止めしているため、電線が強く引っ張られる等しても、絶縁被覆が破れることを規制できる。したがって、電線の内部に水が浸入することを規制できる。   According to such a configuration, since the electric wire is prevented from being detached using the resin retaining member, it is possible to restrict the insulating coating from being broken even if the electric wire is strongly pulled. Therefore, it can control that water permeates into the inside of an electric wire.

本発明の実施の態様として、以下の構成が好ましい。
可動片によって電線を両側から挟んで保持する構成としてもよい。
このような構成によると、電線をしっかりと保持することができる。 The following configuration is preferable as an embodiment of the present invention.
It is good also as a structure which pinches and hold | maintains an electric wire from both sides with a movable piece.
According to such a structure, an electric wire can be hold | maintained firmly.

可動片は、電線を中心として等角度間隔で複数設けられている構成としてもよい。
このような構成によると、複数の可動片によって電線を挟むことにより、よりしっかりと電線を保持することができる。また、複数の可動片によって電線を保持することにより、電線を装着孔に対して同軸で配置しやすくなる。 The movable piece may have a configuration in which a plurality of movable pieces are provided at equal angular intervals around the electric wire.
According to such a structure, an electric wire can be hold | maintained more firmly by pinching an electric wire with a some movable piece. Moreover, it becomes easy to arrange | position an electric wire coaxially with respect to a mounting hole by hold | maintaining an electric wire with a some movable piece.

複数の可動片は、４つのスリットによって分割された４つの可動片とされており、各スリットの幅を狭めるようにして装着孔の軸心側に移動する構成としてもよい。
このような構成によると、４つの可動片によって電線をほぼ全周に亘って覆うことができる。また、４つの可動片における電線に接触する内周面の形状を真円に近づけることができる。このため、絶縁被覆の破れを防ぎつつ、電線に対してバランス良く締め付け力を与えることができる。 The plurality of movable pieces are four movable pieces divided by four slits, and may be configured to move toward the axial center of the mounting hole so as to narrow the width of each slit.
According to such a configuration, the electric wire can be covered almost entirely by the four movable pieces. Moreover, the shape of the inner peripheral surface which contacts the electric wire in four movable pieces can be approximated to a perfect circle. For this reason, it is possible to give a tightening force to the electric wires in a well-balanced manner while preventing the insulation coating from being broken.

電線を挿通させる電線挿通孔が貫通して設けられてなるハウジングと、電線挿通孔に収容され、電線の外周面と電線挿通孔の内周面との間をシールするシール部材と、を備え、抜け止め部材は、保持筒部と、シール部材が電線挿通孔に収容された状態に保持するリテーナと、を備えて構成してもよい。
このようにすると、抜け止め部材のリテーナによってシール部材を電線収容孔に保持することができる。すなわち、抜け止め部材に電線保持機能とゴム栓押さえ機能の両機能を兼備させることができる。 A housing formed by penetrating an electric wire insertion hole for inserting an electric wire, and a seal member that is accommodated in the electric wire insertion hole and seals between the outer peripheral surface of the electric wire and the inner peripheral surface of the electric wire insertion hole, The retaining member may include a holding cylinder portion and a retainer that holds the sealing member in a state of being accommodated in the electric wire insertion hole.
If it does in this way, a seal member can be held in an electric wire accommodation hole by a retainer of a retaining member. That is, the retaining member can have both the electric wire holding function and the rubber stopper function.

本発明によれば、電線の絶縁被覆が破れて内部に水が浸入することを規制することができる。   ADVANTAGE OF THE INVENTION According to this invention, it can control that the insulation coating of an electric wire breaks and water permeates into an inside.

実施形態における電線固定部材を斜め後方から見た斜視図The perspective view which looked at the electric wire fixing member in an embodiment from back diagonally 電線固定部材を斜め後方から見た分解斜視図The exploded perspective view which looked at the electric wire fixing member from the slanting back 電線固定部材を下方から見た分解斜視図The exploded perspective view which looked at the electric wire fixing member from the lower part 電線固定部材の左側面図Left side view of wire fixing member 電線固定部材の底面図Bottom view of wire fixing member 電線固定部材の背面図Rear view of wire fixing member 電線固定部材の内部構造を示す断面図Sectional view showing the internal structure of the wire fixing member 図７の要部拡大図7 is an enlarged view of the main part of FIG. 抜け止め部材を装着孔に挿入する前の状態を示す断面図Sectional drawing which shows the state before inserting a retaining member in a mounting hole 抜け止め部材を装着孔に挿入した後の状態を示す断面図Sectional drawing which shows the state after inserting a retaining member in a mounting hole 図９における保持筒部の断面構造Cross-sectional structure of the holding cylinder in FIG. 図１０における保持筒部の断面構造10 is a cross-sectional structure of the holding cylinder portion in FIG.

＜実施形態＞
本発明の実施形態を図１ないし図１２の図面を参照しながら説明する。本実施形態における電線固定部材１０は、図１に示すように、複数の電線Ｗ（本実施形態では一対の電線Ｗ，Ｗ）を貫通させた状態で保持した上で、筐体（図示せず）にボルト止めされることによって、筐体の内外を貫通した電線Ｗを筐体に固定する部材である。電線Ｗの端末には、絶縁被覆を皮剥ぎすることで芯線が露出されており、この露出された芯線に端子金具Ｔが接続されている。この端子金具Ｔは、いわゆる丸端子であって、円孔が穿設された平板状で丸形の接続部Ｔ１と、芯線に圧着されるバレル部Ｔ２とを備えて構成されている。 <Embodiment>
An embodiment of the present invention will be described with reference to the drawings of FIGS. As shown in FIG. 1, the electric wire fixing member 10 in the present embodiment holds a plurality of electric wires W (a pair of electric wires W and W in the present embodiment) penetrating, and then a housing (not shown). ) To fix the electric wire W penetrating the inside and outside of the casing to the casing. The core wire is exposed at the end of the electric wire W by peeling off the insulation coating, and the terminal fitting T is connected to the exposed core wire. The terminal fitting T is a so-called round terminal, and includes a flat plate-like round connection portion T1 having a circular hole and a barrel portion T2 that is crimped to a core wire.

電線固定部材１０から端子金具Ｔまでの間には、十分な長さを持った電線Ｗが配設されている。この電線Ｗは可撓性を有しているため、筐体の内部に配設された端子台（図示せず）に対する位置ずれ公差が大きい場合でも公差を吸収できるようになっている。したがって、端子金具Ｔを端子台に確実に接続することができる。   An electric wire W having a sufficient length is disposed between the electric wire fixing member 10 and the terminal fitting T. Since the electric wire W has flexibility, the tolerance can be absorbed even when the positional deviation tolerance with respect to a terminal block (not shown) disposed inside the housing is large. Therefore, the terminal fitting T can be reliably connected to the terminal block.

電線固定部材１０は、図２に示すように、アルミダイキャスト製のシールドシェル２０、合成樹脂製のハウジング３０、シリコーン製のゴム栓４０、シリコーン製のゴムリング５０、合成樹脂製の抜け止め部材６０、金属製のかしめリング７０などを備えて構成されている。   As shown in FIG. 2, the wire fixing member 10 includes a shield shell 20 made of aluminum die cast, a housing 30 made of synthetic resin, a rubber plug 40 made of silicone, a rubber ring 50 made of silicone, and a retaining member made of synthetic resin. 60, a metal caulking ring 70, and the like.

シールドシェル２０は横長のシェル本体部２１を有し、このシェル本体部２１の外周面には、取付フランジ２２が周設されている。取付フランジ２２は、シェル本体部２１の前端側（筐体に近い側）に配されている。取付フランジ２２の幅方向両側には、一対の固定孔２３，２３が前後方向に貫通する形態で形成されている。シェル本体部２１には、一対の装着孔２４，２４が前後方向に貫通する形態で形成されている。   The shield shell 20 has a horizontally long shell main body 21, and a mounting flange 22 is provided around the outer peripheral surface of the shell main body 21. The mounting flange 22 is disposed on the front end side (side closer to the housing) of the shell main body 21. A pair of fixing holes 23 are formed on both sides of the mounting flange 22 in the width direction so as to penetrate in the front-rear direction. A pair of mounting holes 24, 24 are formed in the shell main body 21 in a form penetrating in the front-rear direction.

装着孔２４は、図７および図８に示すように、前側に配された大径の孔と、この孔の後方に連なる小径の孔とからなる。この小径の孔の内周面は、後方へ向かうほど装着孔２４の軸心側に近づく傾斜面２４Ａとして構成されている。装着孔２４の小径の孔には、抜け止め部材６０の後述する保持筒部６１が装着されている。一方、装着孔２４の大径の孔には、抜け止め部材６０を保持するハウジング３０の後端部と、その内部に保持された後述するリテーナ６２とが装着されており、このリテーナ６２によってゴム栓４０が後方から抜け止めされている。   As shown in FIGS. 7 and 8, the mounting hole 24 includes a large-diameter hole disposed on the front side and a small-diameter hole connected to the rear of the hole. The inner peripheral surface of the small-diameter hole is configured as an inclined surface 24A that approaches the axial center side of the mounting hole 24 toward the rear. A holding cylinder portion 61 (described later) of the retaining member 60 is mounted in the small diameter hole of the mounting hole 24. On the other hand, the large-diameter hole of the mounting hole 24 is mounted with a rear end portion of the housing 30 that holds the retaining member 60 and a retainer 62 that will be described later held inside the housing 30. The stopper 40 is retained from the rear.

シェル本体部２１の外周面には、かしめリング７０が圧着される圧着溝２５が全周に亘って形成されている。この圧着溝２５に筒状の編組線（図示せず）を被せた上で、かしめリング７０をかしめることにより、編組線とシェル本体部２１が導通可能に固着される。編組線は、複数の電線Ｗを一括して覆うように構成されており、複数の電線Ｗからなる導電路を一括してシールドすることができるようになっている。なお、シェル本体部２１の前面における下端部には、筐体に設けられた凹部に嵌合することでシールドシェル２０の位置決めおよび回り止めを行うピン２６が前方に突出して設けられている。   On the outer peripheral surface of the shell main body portion 21, a crimp groove 25 to which the caulking ring 70 is crimped is formed over the entire circumference. After covering the crimping groove 25 with a tubular braided wire (not shown), the caulking ring 70 is caulked to fix the braided wire and the shell main body portion 21 in a conductive manner. The braided wire is configured so as to cover a plurality of electric wires W in a lump, and can shield a conductive path composed of the plurality of wires W in a lump. Note that a pin 26 for positioning the shield shell 20 and preventing the rotation of the shield shell 20 by being fitted in a recess provided in the housing is provided at the lower end of the front surface of the shell main body 21 so as to protrude forward.

ハウジング３０は電線Ｗの本数に対応して複数設けられ、各ハウジング３０は全体として略円筒形状をなし、シールドシェル２０の各装着孔２４に個別に装着可能とされている。ハウジング３０の内部には、電線Ｗを挿通可能な電線挿通孔３１が前後方向に貫通して形成されている。   A plurality of housings 30 are provided corresponding to the number of electric wires W. Each housing 30 has a substantially cylindrical shape as a whole, and can be individually mounted in each mounting hole 24 of the shield shell 20. An electric wire insertion hole 31 through which the electric wire W can be inserted is formed in the housing 30 so as to penetrate in the front-rear direction.

ハウジング３０は、筐体に穿設された取付孔に嵌合可能な嵌合部３２と、ゴム栓４０を収容する収容空間を有する収容部３３とを備えて構成されている。この嵌合部３２の内部には、電線Ｗを通す通し孔３２Ａが前後方向に貫通して形成されている。すなわち、収容部３３の収容空間と通し孔３２Ａとによって、電線挿通孔３１が構成されている。言い換えると、収容部３３の収容空間は、通し孔３２Ａを介して筐体の内部空間と連通しており、これらの連通部として前後方向に延びる電線挿通孔３１が形成されている。   The housing 30 includes a fitting portion 32 that can be fitted into a mounting hole formed in the housing, and a housing portion 33 that has a housing space for housing the rubber plug 40. Inside the fitting portion 32, a through hole 32A through which the electric wire W passes is formed so as to penetrate in the front-rear direction. That is, the electric wire insertion hole 31 is configured by the accommodation space of the accommodation portion 33 and the through hole 32A. In other words, the accommodating space of the accommodating portion 33 communicates with the internal space of the housing through the through hole 32A, and the wire insertion hole 31 extending in the front-rear direction is formed as these communicating portions.

収容部３３の収容空間には、ゴム栓４０が装着されている。このゴム栓４０は、電線Ｗの外周面に全周に亘って密着する内周シール面４１と、収容部３３の内周面に全周に亘って密着する複数条の外周リップ４２とを備えている。このため、ゴム栓４０が収容部３３の収容空間に収容されると、ゴム栓４０の内周シール面４１と外周リップ４２によってハウジング３０の内部に水が浸入することを規制できる。また、ゴム栓４０は、抜け止め部材６０のリテーナ６２によって後方から抜け止めされているため、収容部３３の収容空間に保持される。   A rubber plug 40 is mounted in the storage space of the storage portion 33. The rubber plug 40 includes an inner peripheral seal surface 41 that is in close contact with the outer peripheral surface of the electric wire W, and a plurality of outer peripheral lips 42 that are in close contact with the inner peripheral surface of the housing portion 33 over the entire periphery. ing. For this reason, when the rubber stopper 40 is accommodated in the accommodating space of the accommodating portion 33, it is possible to restrict water from entering the inside of the housing 30 by the inner peripheral seal surface 41 and the outer peripheral lip 42 of the rubber stopper 40. Further, since the rubber plug 40 is retained from the rear by the retainer 62 of the retaining member 60, the rubber stopper 40 is held in the accommodating space of the accommodating portion 33.

嵌合部３２の外周面には、ゴムリング５０が嵌着可能とされた嵌着溝３６が全周に亘って凹設されている。ゴムリング５０は円筒状をなし、嵌着溝３６の底面に全周に亘って密着する複数条の内周リップ５１と、筐体の取付孔の内周面に全周に亘って密着する複数条の外周リップ５２とを備えて構成されている。ハウジング３０を筐体の取付孔に嵌合すると、ゴムリング５０により筐体の内部が液密状にシールされる。そして、筐体の内部空間は、ゴム栓４０によるシールとゴムリング５０によるシールとによってシール状態に保持される。   On the outer peripheral surface of the fitting portion 32, a fitting groove 36 in which the rubber ring 50 can be fitted is recessed over the entire circumference. The rubber ring 50 has a cylindrical shape, and a plurality of inner peripheral lips 51 that are in close contact with the bottom surface of the fitting groove 36 over the entire periphery, and a plurality of intimate contacts with the inner peripheral surface of the mounting hole of the housing. The outer peripheral lip 52 of the strip is provided. When the housing 30 is fitted into the mounting hole of the housing, the inside of the housing is sealed in a liquid-tight manner by the rubber ring 50. The internal space of the housing is held in a sealed state by the seal by the rubber stopper 40 and the seal by the rubber ring 50.

ハウジング３０の後端部における幅方向両側には、図３に示すように、一対の係止突起３８，３８が形成されている。一方、シールドシェル２０の装着孔２４の内部における幅方向両側には、図６に示すように、各係止突起３８，３８と前後方向に係止する一対の被係止突起２７，２７が形成されている。各被係止突起２７，２７は、シールドシェル２０の後方に臨んで配されている。各係止突起３８，３８が各被係止突起２７，２７と当接することにより、各ハウジング３０が各装着孔２４に保持される。   As shown in FIG. 3, a pair of locking projections 38 are formed on both sides in the width direction of the rear end portion of the housing 30. On the other hand, on both sides in the width direction inside the mounting hole 24 of the shield shell 20, as shown in FIG. 6, a pair of locked projections 27, 27 that are locked with the locking projections 38, 38 in the front-rear direction are formed. Has been. Each of the latched protrusions 27, 27 is arranged facing the back of the shield shell 20. The housings 30 are held in the mounting holes 24 when the locking protrusions 38 and 38 come into contact with the locked protrusions 27 and 27.

さて、電線Ｗは、抜け止め部材６０をシールドシェル２０に組み付けることによって固定されている。この抜け止め部材６０は合成樹脂製であって、電線Ｗに外嵌される円筒形の保持筒部６１と、この保持筒部６１の前端部に形成された平板状のリテーナ６２とを備えて構成されている。リテーナ６２は、保持筒部６１よりも一回り大きい形状とされている。保持筒部６１とリテーナ６２は、ほぼ同軸に配置されている。   The electric wire W is fixed by assembling the retaining member 60 to the shield shell 20. The retaining member 60 is made of synthetic resin, and includes a cylindrical holding cylinder portion 61 that is externally fitted to the electric wire W, and a flat plate-like retainer 62 that is formed at the front end portion of the holding cylinder portion 61. It is configured. The retainer 62 has a shape that is slightly larger than the holding cylinder portion 61. The holding cylinder part 61 and the retainer 62 are arranged substantially coaxially.

リテーナ６２は、収容部３３の収容空間に後方から嵌合可能とされている。リテーナ６２には、上下一対の係止片６３，６３が設けられており、各係止片６３，６３が、収容部３３の後端部に形成された上下一対の係止孔３４，３４に嵌まり込んで前後方向に係止する。これにより、リテーナ６２が収容部３３の収容空間（電線挿通孔３１）に嵌合した状態に保持される。なお、抜け止め部材６０が装着孔２４に装着された状態では、保持筒部６１の後端が装着孔２４の後端からわずかに後方に突出している。これにより、電線Ｗが装着孔２４の後端開口縁部に接触して損傷することを回避している。   The retainer 62 can be fitted into the housing space of the housing portion 33 from behind. The retainer 62 is provided with a pair of upper and lower locking pieces 63, 63, and each locking piece 63, 63 is inserted into a pair of upper and lower locking holes 34, 34 formed at the rear end portion of the accommodating portion 33. Fit and lock in the front-rear direction. Accordingly, the retainer 62 is held in a state of being fitted in the accommodation space (the electric wire insertion hole 31) of the accommodation portion 33. When the retaining member 60 is mounted in the mounting hole 24, the rear end of the holding cylinder portion 61 slightly protrudes rearward from the rear end of the mounting hole 24. Thereby, it is avoided that the electric wire W contacts and damages the rear-end opening edge part of the mounting hole 24. FIG.

保持筒部６１には、図９および図１１に示すように、４つの可動片６４が電線Ｗを中心として周方向に等角度間隔で配設されている。これらの可動片６４は、保持筒部６１の前後長において半分以上の長さを有し、隣り合う可動片６４，６４の間に形成されたスリットＳによって互いに分割されている。各可動片６４の内面における前側には、絞り部６５が形成されており、これらの絞り部６５は、電線Ｗの外周面に沿って周方向に並んで形成されている。   As shown in FIGS. 9 and 11, four movable pieces 64 are arranged in the holding cylinder portion 61 at equal angular intervals in the circumferential direction around the electric wire W. These movable pieces 64 have a length that is more than half of the longitudinal length of the holding cylinder portion 61, and are divided from each other by a slit S formed between the adjacent movable pieces 64, 64. On the front side of the inner surface of each movable piece 64, a throttle portion 65 is formed, and these throttle portions 65 are formed along the outer peripheral surface of the electric wire W in the circumferential direction.

可動片６４は前方に突出する片持ち状をなしており、図９および図１０に示すように、保持筒部６１を装着孔２４に挿入することで傾斜面２４Ａと係合し、可動片６４の先端部が装着孔２４の軸心側に移動するようになっている。この結果、可動片６４の絞り部６５が電線Ｗの絶縁被覆を押圧するため、電線Ｗが保持筒部６１に保持されることになる。絞り部６５の突出高さは、電線Ｗの絶縁被覆の厚さと同じかこれよりも小さめとされているため、電線Ｗの絶縁被覆が破れることはない。   The movable piece 64 has a cantilever shape protruding forward, and as shown in FIGS. 9 and 10, the movable cylinder 64 is engaged with the inclined surface 24 </ b> A by inserting the holding cylinder portion 61 into the mounting hole 24. The front end of the mounting hole 24 moves to the axial center side of the mounting hole 24. As a result, the restricting portion 65 of the movable piece 64 presses the insulation coating of the electric wire W, so that the electric wire W is held by the holding cylinder portion 61. The protruding height of the narrowed portion 65 is the same as or smaller than the thickness of the insulation coating of the electric wire W, so that the insulation coating of the electric wire W is not broken.

また、各可動片６４が装着孔２４の傾斜面２４Ａによって径方向内側に移動した状態では、図１２に示すように、各スリットＳの幅（装着孔２４の周方向における寸法）が狭められて各絞り部６５がほぼ隙間なく周方向に並んで配されることになる。したがって、電線Ｗは、各絞り部６５によってほぼ全周に亘って覆われた状態となり、電線Ｗが各可動片６４によって強固に保持される。この場合であっても、電線Ｗの絶縁被覆を押圧する絞り部６５は合成樹脂製とされているため、電線Ｗが強く引っ張られるなどして絶縁被覆に強い力がかかっても、絞り部６５が絶縁被覆に対してわずかに滑ることにより、絶縁被覆が破れることを規制できる。これにより、電線Ｗの内部に水が浸入することを防ぐことができる。   Further, in the state where each movable piece 64 is moved radially inward by the inclined surface 24A of the mounting hole 24, the width of each slit S (the dimension in the circumferential direction of the mounting hole 24) is narrowed as shown in FIG. The throttle portions 65 are arranged side by side in the circumferential direction with almost no gap. Therefore, the electric wire W is in a state of being covered over the entire circumference by the respective restricting portions 65, and the electric wire W is firmly held by the movable pieces 64. Even in this case, since the restricting portion 65 that presses the insulating coating of the electric wire W is made of synthetic resin, the restricting portion 65 can be applied even if a strong force is applied to the insulating covering due to the electric wire W being pulled strongly or the like. It is possible to regulate the breaking of the insulating coating by sliding slightly against the insulating coating. Thereby, it is possible to prevent water from entering the inside of the electric wire W.

本実施形態は以上のような構成であって、続いてその作用を説明する。まず、図２に示すように、ゴムリング５０，ハウジング３０、ゴム栓４０、抜け止め部材６０、シールドシェル２０、およびかしめリング７０をこの順に電線Ｗに先通ししておく。この後、先通ししておいた電線Ｗの端末において絶縁被覆を皮剥ぎして芯線を露出させ、この芯線に端子金具Ｔを圧着して接続する。   The present embodiment is configured as described above, and its operation will be described subsequently. First, as shown in FIG. 2, the rubber ring 50, the housing 30, the rubber plug 40, the retaining member 60, the shield shell 20, and the caulking ring 70 are passed through the electric wire W in this order. Thereafter, the insulation coating is peeled off at the end of the wire W that has been passed through to expose the core wire, and the terminal fitting T is crimped and connected to the core wire.

この圧着作業に先立ってあるいはその後に、ゴムリング５０をハウジング３０の嵌着溝３６に嵌着し、ゴム栓４０をハウジング３０の収容部３３の収容空間に収容する。抜け止め部材６０のリテーナ６２を収容部３３の収容空間に後方から組み付け、保持筒部６１を装着孔２４に挿入する。このとき、各可動片６４は、傾斜面２４Ａと係合することで装着孔２４の軸心側へ移動し、電線Ｗの絶縁被覆に食い込む。これにより、電線Ｗは、真円形状に近づいた保持筒部６１によってほぼ全周に亘って覆われた状態で固定される。これと同時に、各係止突起３８，３８が各被係止突起２７，２７に当接することで各ハウジング３０がシールドシェル２０の各装着孔２４に前方から装着される。   Prior to or after this crimping operation, the rubber ring 50 is fitted into the fitting groove 36 of the housing 30, and the rubber plug 40 is accommodated in the accommodating space of the accommodating portion 33 of the housing 30. The retainer 62 of the retaining member 60 is assembled into the housing space of the housing portion 33 from behind, and the holding cylinder portion 61 is inserted into the mounting hole 24. At this time, each movable piece 64 moves to the axial center side of the mounting hole 24 by engaging with the inclined surface 24 </ b> A and bites into the insulation coating of the electric wire W. Thereby, the electric wire W is fixed in the state covered by the holding | maintenance cylinder part 61 which approached the perfect circle shape substantially over the perimeter. At the same time, the respective housing projections 38, 38 come into contact with the respective projections 27, 27 so that the respective housings 30 are mounted in the mounting holes 24 of the shield shell 20 from the front.

次に、編組線（図示せず）をシールドシェル２０のシェル本体部２１の外周面に被せてかしめリング７０をかしめることにより、編組線をシェル本体部２１に接続させて固定する。このようにして、電線固定部材１０が完成する。そして、ハウジング３０の嵌合部３２を筐体の取付孔に嵌合させ、取付フランジ２２の固定孔２３にボルトを挿入して筐体側のねじ孔に螺合させることによりシールドシェル２０を筐体に固定する。これにより、電線Ｗは、筐体の取付孔を挿通した状態となって、電線固定部材１０とシールドシェル２０の双方によって筐体に固定される。   Next, the braided wire (not shown) is put on the outer peripheral surface of the shell main body 21 of the shield shell 20 and the caulking ring 70 is caulked to connect the braided wire to the shell main body 21 and fix it. In this way, the wire fixing member 10 is completed. Then, the fitting portion 32 of the housing 30 is fitted into the mounting hole of the housing, and a bolt is inserted into the fixing hole 23 of the mounting flange 22 so as to be screwed into the screw hole on the housing side. Secure to. Thereby, the electric wire W will be in the state which penetrated the attachment hole of the housing | casing, and will be fixed to a housing | casing by both the electric wire fixing member 10 and the shield shell 20. FIG.

以上のように本実施形態では、電線Ｗを保持する抜け止め部材６０を樹脂製とし、可動片６４が装着孔２４の傾斜面２４Ａに係合することで絞り部６５が電線Ｗの絶縁被覆を押圧するようにしたから、電線Ｗの絶縁被覆が破れて内部に水が浸入することを規制できる。また、４つの可動片６４によって電線Ｗをほぼ全周に亘って覆うことができるため、電線Ｗを強固に保持することができる。また、抜け止め部材６０にリテーナ６２を設けてゴム栓４０の抜け止めを行うようにしたから、保持筒部６１による電線保持機能に加えてリテーナ６２によるゴム栓押さえ機能を持たせることができる。   As described above, in this embodiment, the retaining member 60 that holds the electric wire W is made of resin, and the movable piece 64 engages with the inclined surface 24A of the mounting hole 24, so that the throttle portion 65 covers the insulation coating of the electric wire W. Since it presses, it can control that the insulation coating of the electric wire W is torn and water permeates into the inside. Moreover, since the electric wire W can be covered over the perimeter with the four movable pieces 64, the electric wire W can be hold | maintained firmly. In addition, since the retainer 62 is provided on the retaining member 60 so as to prevent the rubber plug 40 from being detached, the retainer 62 can have a rubber plug pressing function in addition to the electric wire retaining function by the holding cylinder portion 61.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）上記実施形態では、可動片６４が４つ設けられているものの、本発明によると、可動片を１つだけ設けてもよいし、可動片を電線Ｗの両側に２つ設けてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Although four movable pieces 64 are provided in the above embodiment, according to the present invention, only one movable piece may be provided, or two movable pieces may be provided on both sides of the electric wire W. Good.

（２）上記実施形態では、抜け止め部材６０にリテーナ６２を設けているものの、本発明によると、保持筒部のみからなる抜け止め部材としてもよい。   (2) Although the retainer 62 is provided on the retaining member 60 in the above-described embodiment, according to the present invention, the retaining member may be composed of only the holding cylinder portion.

（３）上記実施形態では、各可動片６４によって電線Ｗをほぼ全周に亘って覆う形態としているものの、本発明によると、各可動片６４の間に大きめの隙間を有した状態で電線Ｗを保持してもよい。   (3) In the above embodiment, the electric wire W is covered with the movable pieces 64 over almost the entire circumference. However, according to the present invention, the electric wires W are provided with a large gap between the movable pieces 64. May be held.

１０…電線固定部材
２０…シールドシェル
２４…装着孔
２４Ａ…傾斜面
３０…ハウジング
３１…電線挿通孔
３３…収容部
４０…ゴム栓
６０…抜け止め部材
６１…保持筒部
６２…リテーナ
６４…可動片
Ｓ…スリット
Ｗ…電線 DESCRIPTION OF SYMBOLS 10 ... Electric wire fixing member 20 ... Shield shell 24 ... Mounting hole 24A ... Inclined surface 30 ... Housing 31 ... Electric wire insertion hole 33 ... Accommodating part 40 ... Rubber stopper 60 ... Detachment member 61 ... Holding cylinder part 62 ... Retainer 64 ... Movable piece S ... Slit W ... Wire

Claims (5)

筐体の内外を貫通した電線を前記筐体に固定する電線固定部材であって、
装着孔を有し、その装着孔の前端開口からこの前端開口の後方に位置する後端開口に向かうにつれて軸心側に近づく傾斜面が前記装着孔の内部に形成されたシールドシェルと、
筒状をなす保持筒部を有し、その保持筒部が前記電線に外嵌された状態で前記装着孔に装着される樹脂製の抜け止め部材と、を備え、
前記保持筒部には、前記装着孔の前記傾斜面に係合することで前記装着孔の軸心側に移動し、前記電線を押圧して同電線を保持する可動片が設けられており、
前記抜け止め部材が前記装着孔に装着された状態では、前記保持筒部の後端が装着孔の後端開口から後方に突出していることを特徴とする電線固定部材。 An electric wire fixing member for fixing an electric wire penetrating the inside and outside of the housing to the housing,
Has a mounting hole, and a shield shell inclined surface approaching toward the axis is formed inside of the mounting hole toward the end opening after the position from the front end opening to the rear of the front end opening of the mounting hole,
A holding cylinder portion that has a cylindrical shape, and a resin retaining member that is mounted in the mounting hole in a state in which the holding cylinder portion is externally fitted to the electric wire,
The holding cylinder part is provided with a movable piece that moves to the axial center side of the mounting hole by engaging with the inclined surface of the mounting hole and presses the electric wire to hold the electric wire .
In the state where the retaining member is mounted in the mounting hole, the rear end of the holding cylinder portion protrudes rearward from the rear end opening of the mounting hole . 前記可動片によって前記電線を両側から挟んで保持することを特徴とする請求項１に記載の電線固定部材。   The electric wire fixing member according to claim 1, wherein the electric wire is sandwiched and held from both sides by the movable piece. 前記可動片は、前記電線を中心として等角度間隔で複数設けられていることを特徴とする請求項２に記載の電線固定部材。   The electric wire fixing member according to claim 2, wherein a plurality of the movable pieces are provided at equal angular intervals with the electric wire as a center. 複数の前記可動片は、４つのスリットによって分割された４つの可動片とされており、各スリットの幅を狭めるようにして前記装着孔の軸心側に移動することを特徴とする請求項３に記載の電線固定部材。   The plurality of movable pieces are four movable pieces divided by four slits, and move to the axial center side of the mounting hole so as to narrow the width of each slit. The electric wire fixing member of description. 前記電線を挿通させる電線挿通孔が貫通して設けられてなるハウジングと、
前記電線挿通孔に収容され、前記電線の外周面と前記電線挿通孔の内周面との間をシールするシール部材と、を備え、
前記抜け止め部材は、前記保持筒部と、前記シール部材が前記電線挿通孔に収容された状態に保持するリテーナと、を備えて構成されていることを特徴とする請求項１ないし請求項４のいずれか一項に記載の電線固定部材。 A housing formed by penetrating a wire insertion hole through which the wire is inserted;
A seal member that is accommodated in the electric wire insertion hole and seals between an outer peripheral surface of the electric wire and an inner peripheral surface of the electric wire insertion hole;
The said retaining member is provided with the said holding | maintenance cylinder part and the retainer hold | maintained in the state in which the said sealing member was accommodated in the said electric wire penetration hole, The Claim 1 thru | or 4 characterized by the above-mentioned. The electric wire fixing member as described in any one of these.
JP2011287572A 2011-12-28 2011-12-28 Wire fixing member Expired - Fee Related JP5772580B2 (en)

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