WO2015099183A1 - Rear holder - Google Patents

Rear holder Download PDF

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Publication number
WO2015099183A1
WO2015099183A1 PCT/JP2014/084710 JP2014084710W WO2015099183A1 WO 2015099183 A1 WO2015099183 A1 WO 2015099183A1 JP 2014084710 W JP2014084710 W JP 2014084710W WO 2015099183 A1 WO2015099183 A1 WO 2015099183A1
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WO
WIPO (PCT)
Prior art keywords
electric wire
wire
cable
wire holding
rear holder
Prior art date
Application number
PCT/JP2014/084710
Other languages
French (fr)
Japanese (ja)
Inventor
禎典 繁田
誠司 足立
秀彦 久保嶋
Original Assignee
矢崎総業株式会社
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Filing date
Publication date
Application filed by 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Publication of WO2015099183A1 publication Critical patent/WO2015099183A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • H01R13/5829—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing the clamping part being flexibly or hingedly connected to the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole

Definitions

  • the present invention relates to a rear holder that is attached to a wire lead-out portion of a connector housing that houses connector terminals.
  • a connector structure includes a rear holder that is mounted behind a connector housing that houses a connector terminal connected to an end of an electric wire (the side from which the electric wire is pulled out from the connector housing) (see Patent Document 1).
  • the rear holder closes the opening of the wire lead-out portion of the connector housing and holds the electric wire so that a force applied when the electric wire is bent does not reach the inside of the connector housing.
  • drop-off prevention of sealing members such as a rubber plug attached to the circumference
  • a protrusion on the rear holder for eliminating a gap between the outer periphery of the electric wire.
  • the rib can be brought into contact with the outer peripheral portion of the electric wire at normal times, so that foreign matter can be prevented from entering.
  • the rib may be separated from the outer periphery of the wire and a gap may be formed between them.
  • the generated gap passes to the inside of the connector housing, there is a possibility that foreign matter may enter the connector housing through the gap. Therefore, it is necessary to surely prevent entry of foreign matter with the rear holder even when the wire is bent.
  • the present invention has been made on the basis of this, and the problem to be solved is to provide a rear holder capable of reliably preventing the intrusion of foreign matter even when wire bending occurs. is there.
  • a connector according to the present invention is a cylindrical shape that is attached to a wire lead-out portion of a connector housing that houses a connector terminal connected to a terminal of a wire and holds a wire drawn from the wire lead-out portion.
  • the protruding portion creates a gap that communicates linearly to the inside of the connector housing between the wire holding portion and the outer periphery of the wire even when the wire is bent in the wire holding portion.
  • Leave a gap in the direction of the cylinder axis Provided is characterized in that is.
  • the electric wire holding part in the state where the electric wire holding part is held without bending (bending, bending, etc.) in the electric wire, not only all the protrusions are brought into contact with the outer peripheral part of the electric wire, but the electric wire is, for example, the electric wire holding part. Even if some of the protrusions are separated from the outer periphery of the electric wire in a bent state, it is possible to keep at least one of the remaining protrusions in contact with the outer periphery of the electric wire. Therefore, it is not necessary to generate a gap (communication gap) that communicates linearly to the inside of the connector housing between the electric wire holding portion and the outer peripheral portion of the electric wire, so that it is possible to prevent a wire such as a foreign object from slipping through.
  • a gap communication gap
  • the protrusions of the electric wire holding portions of the two divided bodies can be formed by shifting the positions in the cylindrical axis direction from the protrusions of the electric wire holding portion of the counterpart divided body.
  • the positions of the protruding portions of the two divided bodies that come into contact with the outer peripheral portion of the electric wire are displaced in the cylinder axis direction, so that when the two divided bodies are assembled to attach the rear holder, the protruding portions act on the outer peripheral portion of the electric wire.
  • the tightening force pressing force
  • the mounting workability of the rear holder can be improved.
  • the protrusions of the electric wire holding part of each divided body may be formed with different protrusion heights from the inner peripheral part. For example, when the wire is bent in the wire holding part, the bending degree increases as it goes in the drawing direction of the electric wire. It is possible to more reliably prevent the communication gap from being generated when the electric wire is bent.
  • the protrusions of the wire holding portions of each divided body are formed with staggered different protrusion heights, the electric wires can be positioned so as to sew between these protrusions, so that the electric wires may wave at the wire holding portions. The protruding portion can be brought into contact with the outer periphery of the electric wire in a state where the wire is bent.
  • the rear holder is a member that is attached to the wire lead-out portion of the connector housing that accommodates the connector terminal connected to the terminal of the wire.
  • the rear holder in addition to holding the wire drawn from the wire lead-out portion, It is installed for the purpose of preventing foreign matter from entering inside.
  • a connector used in a high-voltage electric system in an electric vehicle, a hybrid vehicle, or the like such as a wire or a metal wire (metal thin wire) in a non-waterproof connector that does not have a sealing member such as a rubber plug.
  • a rear holder is used in order to prevent intrusion of foreign matter is assumed, the use is not limited to this.
  • FIG. 1 to 3 show the configuration of the rear holder 2 according to the present embodiment.
  • 1 and 2 are perspective views showing a state in which the rear holder 2 is mounted on the wire lead-out portion 11 of the connector housing 10.
  • FIG. 3 is a perspective view showing a state before the rear holder 2 is mounted on the wire lead-out portion 11.
  • the arrow X direction shown in FIG. 1 is the left-right direction
  • the arrow Y direction is the front-rear direction
  • the arrow Z direction is the up-down direction.
  • the arrow Y1 direction in FIG. 1 is the front side (front)
  • the arrow Y2 direction is the rear side (rear).
  • the left-right direction, the front-rear direction, and the up-down direction do not necessarily match the actual directions at the time of implementation.
  • the rear holder 2 is formed to be connected to the tubular wire holding portion 3 for holding the wire drawn from the wire drawing portion 11 of the connector housing 10, and the wire holding portion 3. 11 and a crowned portion 4 to be crowned in the opening 12 (see FIG. 6).
  • the wire lead-out portion 11 of the connector housing 10 is opened rearward (see FIG. 6), and a connector terminal (not shown) connected to the end of the wire is accommodated in the connector housing 10 from the opening 12. .
  • the electric wire connected to the accommodated connector terminal is pulled out rearward from the electric wire extraction part 11 via the rear holder 2.
  • the front of the connector housing 10 is opened so that the connector terminal faces the connection counterpart terminal, and the terminals are electrically connected.
  • the electric wire holding part 3 and the crowned part 4 are divided into two divided bodies 5 (appropriately, the electric wire holding parts 3a and 3b and the crowned parts 4a and 4b, divided parts) along the cylinder axis direction (front-rear direction) of the electric wire holding part 3. 5a and 5b).
  • the two divided bodies 5 are connected inseparably by a connecting portion (hereinafter referred to as a hinge) 6 formed integrally with the same material (for example, a resin material).
  • the two division bodies 5 are connected by the one end part of the left-right direction, and can be opened and closed by the hinge 6 as a fulcrum in the up-down direction.
  • the two divided bodies 5 are assembled by engaging the locking portions (locking claws) 51 and 53 at both ends with the locked portions (locking holes) 52 and 54, respectively, so as to keep the closed state. It has become.
  • the two divided bodies 5 are not connected to each other and are separated from each other, and when the rear holder 2 is attached to the wire lead-out portion 11 of the connector housing 10, for example, it is integrally assembled by screwing or band fastening. Can also be envisaged.
  • the electric wire holding part 3 of the two divided bodies 5 has a concave curved surface 31 along the outer periphery of the electric wire, and the concave curved surfaces 31 are oriented in the same direction in the vertical direction before the two divided bodies 5 are assembled. (For example, upward).
  • the concave curved surfaces 31 are opposed to each other to form a columnar cavity (hereinafter referred to as an electric wire holding space), and the electric wires drawn out from the electric wire drawing portion 11 are the electric wires. It is held in the holding space.
  • the electric wire holding portion 3 has a plurality of ridge portions (hereinafter referred to as ribs) 32 that protrude along the circumferential direction from the concave curved surface 31 that is the inner peripheral portion. These ribs 32 are held in the wire holding part 3 without bending (bending, bending, etc.) of the electric wire during wiring or vibration of the electric wire (the electric wire is substantially concentric with the electric wire holding space). In a state of being positioned in a straight line), both are formed so as to come into contact with the outer periphery of the electric wire.
  • ribs ridge portions
  • the rib 32 is formed so that the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range and the protruding tip can be contacted, the rib 32 is arranged in the electric wire holding space within the electric wire tolerance range. It is possible to reliably prevent the wire or the like assumed as a foreign object from slipping through the rib 32 (which is the concavely curved surface 31) and the outer periphery of the electric wire.
  • maintenance part 3 has shown as an example the structure which has the two ribs 32 of the same form, it is good also as a structure which has three or more ribs.
  • the rib 32 has a cross-sectional shape as an example, and the ridge line is a convex curved shape. Absent.
  • these ribs 32 are linear to the inside of the connector housing 10 between the electric wire holding part 3 and the outer periphery of the electric wire even when the electric wire holding part 3 is bent (bent or bent). Are arranged at intervals in the cylinder axis direction (front-rear direction) that do not cause a gap communicating with the cylinder (hereinafter referred to as a communication gap). In this case, for example, even if some of the ribs 32 are separated from the outer periphery of the electric wire in a state where the electric wire is bent in the electric wire holding portion 3, at least one of the remaining ribs 32 is in contact with the outer periphery of the electric wire. To prevent the occurrence of a communication gap.
  • ribs 32 a and 32 b are formed on the electric wire holding portions 3 a and 3 b of the two divided bodies 5, respectively.
  • two ribs 32a continuous along the concave curved surface 31 forming a semicircular surface are arranged side by side in the cylinder axis direction, and the electric wire holding of the divided body 5b.
  • two ribs 32b continuous along the concave curved surface 31 having a semicircular surface shape are connected to the two ribs 32a at the same interval with the ribs 32a at the front and rear in the cylinder axis direction. They are arranged side by side. That is, these ribs 32a and 32b are continuous so as to go around the inner peripheral portion of the wire holding portion 3 and protrude toward the wire holding space.
  • the crowned portion 4 a of one divided body 5 (for example, the divided body 5 a) is positioned below the opening 12 side end portion of the wire lead-out portion 11.
  • the concave curved surface 31 of the electric wire holding part 3a is made to follow the outer peripheral part of the electric wire pulled out from the electric wire extraction part 11 outside.
  • a force is applied to turn the other divided body 5 (for example, the divided body 5b) around the hinge 6 so that the concave curved surface 31 of the electric wire holding portion 3b is along the outer peripheral portion of the electric wire.
  • the split body 5b is moved so as to face the concave curved surface 31 of the electric wire holding portion 3a with the electric wire interposed therebetween, and the crown portion 4b is overlapped on the crown portion 4a.
  • the crowned portion 4 is opened. 12 to be crowned.
  • the crowned crowned portion 4 is engaged with the latched portion (locking claw) 13 of the wire lead-out portion 11 in the latched portion (locking hole) 41, so that it is prevented from coming off from the wire lead-out portion 11.
  • the crowned portion 4 is crowned and the locked portion 41 is engaged, so that the rear holder 2 is mounted on the wire lead-out portion 11.
  • the concave curved surfaces 31 of the electric wire holding portions 3a and 3b can be opposed to each other so that the electric wire holding space is formed, and thus, for example, the electric wire drawing portion 11 of the connector housing 10 Before the wire is sandwiched between the wire holding portions 3a and 3b of the two divided bodies 5a and 5b and tightened between the ribs 32a and 32b, and then the divided bodies 5a and 5b are advanced along the electric wires to be crowned. It is not necessary that the portions 4a and 4b are simultaneously crowned on the opening 12 of the wire lead-out portion 11.
  • the rib 32 can be raised to a protruding height at which it can come into contact with the outer peripheral portion of the electric wire having the smallest diameter in the tolerance range, and it is possible to more reliably prevent the communication gap from being generated.
  • the protruding height of the rib 32 is in such a state, the ribs 32a and 32b do not come into contact with the outer periphery of the electric wire until the divided bodies 5a and 5b are assembled.
  • the tightening force (pressing force) applied to the outer periphery of the electric wire can be suppressed as compared with the case where the mounting operation of the rear holder is performed in a state of being tightened between.
  • the ribs 32a and 32b are made continuous so as to go around the inner peripheral part of the wire holding part 3, but the ribs do not have to be continuous in this way, for example, FIG. 4 and FIG.
  • the positions in the cylinder axis direction are shifted from the ribs 33 and 34 of the wire holding part 3 of the counterpart divided body 5. May be.
  • the positions of the ribs 33 and 34 in contact with the outer periphery of the electric wire are shifted in the front-rear direction.
  • the ribs 33 and 34 are only semicircular.
  • the tightening force (pressing force) applied to the outer periphery of the electric wire can be dispersed and suppressed without contacting the outer periphery of the electric wire. That is, since it is not necessary to tighten the electric wire excessively during the mounting operation, it is possible to improve the mounting workability of the rear holder 2, and it is possible to prevent the electric wire from being damaged during the mounting operation and even after the mounting.
  • maintenance part 3 is made the same with all the ribs 32
  • this protrusion height is the same with all the ribs 32.
  • the ribs 33 of the electric wire holding part 3 of each divided body 5 may be formed with different protruding heights from the inner peripheral part (concave surface 31) of the electric wire holding part 3.
  • the protruding height of the left ribs 331 and 333 is larger than the right ribs 332 and 334 with the left direction in the figure as the rear.
  • FIG. 4A shows an example of a state where all the ribs 33 are in contact with the outer peripheral portion of the electric wire 1 without bending the electric wire 1 having the maximum diameter within the tolerance range.
  • at least the rib 33 with the larger protruding height (left ribs 331 and 333 in FIG. 4A) is formed so as to be able to contact the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range.
  • the rib 331 and the rib 333, and the rib 332 and the rib 334 have the same protruding height, but the protruding height of the rib 331 is smaller than the rib 333, and the protruding height of the rib 332 is higher than the rib 334. You can make it smaller.
  • the ribs 34 of the electric wire holding portions 3 of the divided bodies 5 may be alternately formed with different projecting heights.
  • the protruding height of the ribs 342 and 343 is made larger than the ribs 341 and 344 with the left direction in the figure as the rear. That is, the projecting height of the rearmost rib 343 is made larger than that of the adjacent rib 341, and the ribs 344 and 342 are arranged so that the projecting heights are staggered toward the front thereafter.
  • FIG. 5A shows an example of a state in which all the ribs 34 are in contact with the outer peripheral portion of the electric wire 1 without bending the electric wire 1 having the maximum diameter within the tolerance range.
  • At least the rib 34 having the larger protruding height is the outer peripheral portion of the wire having the smallest diameter within the tolerance range. It is formed so that it can come into contact with.
  • the electric wire 1 when the electric wire is bent in the electric wire holding part 3 (in other words, the electric wire holding space), for example, the electric wire 1 can be positioned so as to sew between the ribs 34 as shown in FIG.
  • the rib 34 can be brought into contact with the outer peripheral portion of the electric wire in a state where the electric wire 1 is bent so as to wave in the holding portion 3 (electric wire holding space). Therefore, even if the electric wires have different diameters within the tolerance range, the outer peripheral portion of the electric wire can be reliably brought into contact with the ribs 34 and the communication gap can be filled by changing the degree of bending (undulation) in the electric wire holding space. .
  • FIG. 5B shows an example of a contact state between the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range and the rib 34.

Abstract

　Provided is a rear holder (2) having: a tube-shaped cable retaining part (3) installed in a cable lead-out part (11) of a connector housing (10) for housing a connector terminal connected to a terminal of a cable, the cable retaining part (3) retaining a cable leading out from the cable lead-out part; and a crown part (4) linked to the cable retaining part and crowned by an opening (12) of the cable lead-out part, the rear holder being formed by dividing the cable retaining part and the crown part into two divided bodies (5) along the tube axial direction of the cable retaining part, wherein the cable retaining part has a plurality of rib parts (32) protruding along the circumferential direction from the inner peripheral portion and being capable of contacting the outer peripheral portion of the cable, the rib parts being positioned spaced apart at intervals in the tube axial direction such that, even if twisting of the cable occurs within the cable retaining part, no gap resulting in linear communication to the interior of the connector housing is produced between the cable retaining part and the outer peripheral portion of the cable.

Description

リアホルダRear holder
　本発明は、コネクタ端子を収容したコネクタハウジングの電線引出部に装着されるリアホルダに関する。 The present invention relates to a rear holder that is attached to a wire lead-out portion of a connector housing that houses connector terminals.
　電線の端末に接続されたコネクタ端子を収容したコネクタハウジングの後方（コネクタハウジングから電線が引き出される側）に装着されるリアホルダを備えたコネクタ構造が知られている（特許文献１参照）。リアホルダは、コネクタハウジングの電線引出部の開口を塞ぐとともに、電線屈曲時などに作用される力がコネクタハウジングの内部まで及ばないように電線を保持する。そして、特許文献１に開示されているような防水コネクタであれば、電線周りに取り付けられたゴム栓等のシール部材の脱落防止がリアホルダで図られる。これに対し、非防水コネクタではシール部材を電線周りに取り付ける必要はないが、コネクタハウジングの内部（特にコネクタ端子が相手側端子と電気的に接続される活電領域）への異物（例えば針金や金属ワイヤ等）の侵入をリアホルダで防止するための対策が求められる。 A connector structure is known that includes a rear holder that is mounted behind a connector housing that houses a connector terminal connected to an end of an electric wire (the side from which the electric wire is pulled out from the connector housing) (see Patent Document 1). The rear holder closes the opening of the wire lead-out portion of the connector housing and holds the electric wire so that a force applied when the electric wire is bent does not reach the inside of the connector housing. And if it is a waterproof connector as disclosed by patent document 1, drop-off prevention of sealing members, such as a rubber plug attached to the circumference | surroundings of an electric wire, will be achieved with a rear holder. On the other hand, in the case of a non-waterproof connector, it is not necessary to attach a sealing member around the electric wire, but foreign matter (for example, a wire or wire) to the inside of the connector housing (especially the live area where the connector terminal is electrically connected to the mating terminal). Measures are required to prevent the intrusion of a metal wire or the like with a rear holder.
日本国特開２０１１－５４３９３号公報Japanese Unexamined Patent Publication No. 2011-54393
　かかる異物侵入防止策の一つとして、電線外周部との間の空隙をなくすための突条部（リブ）をリアホルダに設けることが考えられる。これにより、通常時はリブが電線外周部と接触した状態とすることができるため、異物の侵入防止を図ることが可能となる。 As one of such measures to prevent foreign matter from entering, it is conceivable to provide a protrusion (rib) on the rear holder for eliminating a gap between the outer periphery of the electric wire. As a result, the rib can be brought into contact with the outer peripheral portion of the electric wire at normal times, so that foreign matter can be prevented from entering.
　しかしながら電線配索時や電線振動時などに電線に曲げ（撓みや屈曲等）が生じた場合、その程度によってはリブが電線外周部から離れ、これらの間に空隙が生じてしまうおそれがある。生じた空隙がコネクタハウジングの内部まで通ずると、かかる空隙を通して異物がコネクタハウジングの内部に侵入してしまう可能性がある。したがって、電線曲げが生じた場合であってもリアホルダで確実に異物の侵入防止を図ることが必要とされる。 However, when a wire is bent (bent or bent) when the wire is routed or vibrated, depending on the degree, the rib may be separated from the outer periphery of the wire and a gap may be formed between them. When the generated gap passes to the inside of the connector housing, there is a possibility that foreign matter may enter the connector housing through the gap. Therefore, it is necessary to surely prevent entry of foreign matter with the rear holder even when the wire is bent.
　本発明はこれを踏まえてなされたものであり、その解決しようとする課題は、電線曲げが生じた場合であっても、確実に異物の侵入防止を図ることが可能なリアホルダを提供することにある。 The present invention has been made on the basis of this, and the problem to be solved is to provide a rear holder capable of reliably preventing the intrusion of foreign matter even when wire bending occurs. is there.
　上記課題を解決するため、本発明に係るコネクタは、電線の端末に接続されたコネクタ端子を収容するコネクタハウジングの電線引出部に装着され、前記電線引出部から引き出される電線を保持する筒状の電線保持部と、前記電線保持部に連なって形成されて前記電線引出部の開口に被冠される被冠部とを有し、前記電線保持部と前記被冠部が該電線保持部の筒軸方向に沿って二つの分割体に分割して形成され、前記電線保持部は、内周部から周方向に沿って突出して前記電線外周部と接触可能な複数本の突条部を有し、前記突条部は、前記電線保持部において前記電線に曲げが生じた状態であっても前記電線保持部と電線外周部との間に前記コネクタハウジングの内部まで直線状に連通する空隙を生じさせない間隔を前記筒軸方向にあけて配されていることを特徴とする。 In order to solve the above-described problems, a connector according to the present invention is a cylindrical shape that is attached to a wire lead-out portion of a connector housing that houses a connector terminal connected to a terminal of a wire and holds a wire drawn from the wire lead-out portion. An electric wire holding portion; and a crowned portion formed continuously to the electric wire holding portion and crowned by an opening of the electric wire lead-out portion, wherein the electric wire holding portion and the crowned portion are cylinders of the electric wire holding portion. It is formed by dividing into two divided bodies along the axial direction, and the wire holding portion has a plurality of protrusions that protrude from the inner peripheral portion along the circumferential direction and can come into contact with the outer peripheral portion of the electric wire. The protruding portion creates a gap that communicates linearly to the inside of the connector housing between the wire holding portion and the outer periphery of the wire even when the wire is bent in the wire holding portion. Leave a gap in the direction of the cylinder axis Provided is characterized in that is.
　これによれば、電線保持部において電線に曲げ（撓みや屈曲等）が生じることなく保持された状態において、すべての突条部を電線外周部と接触させるのみならず、例えば電線が電線保持部において撓んだ状態となって一部の突条部が電線外周部から離れたとしても、残りの突条部のうち少なくとも一つを電線外周部と接触した状態に保つことが可能となる。したがって、電線保持部と電線外周部との間にコネクタハウジングの内部まで直線状に連通する空隙（連通隙間）を生じさせずに済むから、異物である針金等のすり抜けを防ぐことができる。 According to this, in the state where the electric wire holding part is held without bending (bending, bending, etc.) in the electric wire, not only all the protrusions are brought into contact with the outer peripheral part of the electric wire, but the electric wire is, for example, the electric wire holding part. Even if some of the protrusions are separated from the outer periphery of the electric wire in a bent state, it is possible to keep at least one of the remaining protrusions in contact with the outer periphery of the electric wire. Therefore, it is not necessary to generate a gap (communication gap) that communicates linearly to the inside of the connector housing between the electric wire holding portion and the outer peripheral portion of the electric wire, so that it is possible to prevent a wire such as a foreign object from slipping through.
　この場合、二つの分割体の電線保持部の突条部は、前記筒軸方向に対する位置を互いに相手側分割体の電線保持部の突条部とはずらしてそれぞれ形成することができる。これにより、電線外周部と接触する二つの分割体の突条部の位置が筒軸方向にずれるため、リアホルダを装着するべく二つの分割体を組み付ける際に電線外周部に突条部から作用される締付力（押圧力）を分散させて抑制できる。すなわち、装着作業中は電線を過度に締め付けずに済むから、リアホルダの装着作業性の向上を図ることができる。 In this case, the protrusions of the electric wire holding portions of the two divided bodies can be formed by shifting the positions in the cylindrical axis direction from the protrusions of the electric wire holding portion of the counterpart divided body. As a result, the positions of the protruding portions of the two divided bodies that come into contact with the outer peripheral portion of the electric wire are displaced in the cylinder axis direction, so that when the two divided bodies are assembled to attach the rear holder, the protruding portions act on the outer peripheral portion of the electric wire. The tightening force (pressing force) can be dispersed and suppressed. That is, since it is not necessary to tighten the electric wire excessively during the mounting operation, the mounting workability of the rear holder can be improved.
　また、各分割体の電線保持部の突条部は、前記内周部からの突出高さを異ならせて形成してもよい。例えば電線保持部において電線に曲げが生じた場合、その曲げ程度は電線の引出方向に向かうほど大きくなるから、かかる引出方向の手前側の突条部ほど突出高さを大きくして形成することで、電線曲げが生じた場合に連通隙間を生じさせることをより確実に防止できる。また例えば各分割体の電線保持部の突条部を互い違いに異なる突出高さで形成すれば、これらの突条部の間を縫うように電線を位置付けられるから、電線保持部で電線が波打つように撓んだ状態で突状部を電線外周部と接触させることが可能となる。したがって、公差範囲内で径寸法の異なる電線であっても電線保持部での撓み具合（波打ち具合）が変動することで電線外周部を確実に突条部と接触させて連通隙間を埋めることができる。 Further, the protrusions of the electric wire holding part of each divided body may be formed with different protrusion heights from the inner peripheral part. For example, when the wire is bent in the wire holding part, the bending degree increases as it goes in the drawing direction of the electric wire. It is possible to more reliably prevent the communication gap from being generated when the electric wire is bent. In addition, for example, if the protrusions of the wire holding portions of each divided body are formed with staggered different protrusion heights, the electric wires can be positioned so as to sew between these protrusions, so that the electric wires may wave at the wire holding portions. The protruding portion can be brought into contact with the outer periphery of the electric wire in a state where the wire is bent. Therefore, even if the electric wires have different diameters within the tolerance range, it is possible to reliably contact the outer peripheral portion of the electric wire with the protrusion and fill the communication gap by changing the degree of bending (waving) in the electric wire holding portion. it can.
　本発明によれば、電線曲げが生じた場合であっても、確実に異物の侵入防止を図ることが可能なリアホルダを実現することができる。 According to the present invention, it is possible to realize a rear holder that can reliably prevent the intrusion of foreign matter even when the electric wire is bent.
本発明の一実施形態に係るリアホルダをコネクタハウジングの電線引出部に装着した状態を示す斜視図である。It is a perspective view which shows the state which mounted | wore the wire holder of the connector housing with the rear holder which concerns on one Embodiment of this invention. 本発明の一実施形態に係るリアホルダをコネクタハウジングの電線引出部に装着した状態を図１とは別方向から示す斜視図である。It is a perspective view which shows the state which mounted | wore the electric wire extraction part of the connector housing with the rear holder which concerns on one Embodiment of this invention from the direction different from FIG. コネクタハウジングの電線引出部に装着する前における本発明の一実施形態に係るリアホルダの構成を示す斜視図である。It is a perspective view which shows the structure of the rear holder which concerns on one Embodiment of this invention before attaching to the electric wire extraction part of a connector housing. 突出高さを異ならせて各分割体の電線保持部に形成した突条部の構成を模式的に示す断面図であって、(ａ)は電線に曲げが生じることなく、すべての突条部が電線外周部と接触している状態を示す図、(ｂ)は電線保持部において電線曲げが生じた場合の突条部と電線外周部との接触状態を示す図である。It is sectional drawing which shows typically the structure of the protrusion part formed in the electric wire holding part of each division body by changing protrusion height, Comprising: (a) does not produce bending in an electric wire, but all protrusion parts The figure which shows the state which has contacted the electric wire outer peripheral part, (b) is a figure which shows the contact state of the protrusion part and electric wire outer peripheral part at the time of an electric wire bending occurring in an electric wire holding part. 突出高さを異ならせて各分割体の電線保持部に形成した突条部の別構成を模式的に示す断面図であって、(ａ)は電線に曲げが生じることなく、すべての突条部が電線外周部と接触している状態を示す図、(ｂ)は電線保持部において電線曲げが生じた場合の突条部と電線外周部との接触状態を示す図である。It is sectional drawing which shows typically another structure of the protrusion part formed in the electric wire holding part of each division body by varying protrusion height, Comprising: (a) is a wire, and all protrusions do not produce bending The figure which shows the state which a part is contacting with the electric wire outer peripheral part, (b) is a figure which shows the contact state of the protrusion part and electric wire outer peripheral part at the time of an electric wire bending occurring in an electric wire holding part. コネクタハウジングの電線引出部の構成を示す斜視図である。It is a perspective view which shows the structure of the electric wire extraction part of a connector housing.
　以下、本発明の一実施形態に係るリアホルダについて、添付図面を参照して説明する。リアホルダは、電線の端末に接続されたコネクタ端子を収容したコネクタハウジングの電線引出部に装着される部材であり、本実施形態においては電線引出部から引き出される電線の保持に加えて、コネクタハウジングの内部への異物侵入防止を目的として装着されている。本実施形態では、例えば電気自動車やハイブリッド自動車等における高圧の電気系統で使用されるコネクタ、その中でもゴム栓等のシール部材を有しない非防水コネクタ内への針金や金属ワイヤ（金属細線）等の異物の侵入防止を図るためにリアホルダを用いる場合を想定するが、その用途はこれに限定されるものではない。 Hereinafter, a rear holder according to an embodiment of the present invention will be described with reference to the accompanying drawings. The rear holder is a member that is attached to the wire lead-out portion of the connector housing that accommodates the connector terminal connected to the terminal of the wire. In this embodiment, in addition to holding the wire drawn from the wire lead-out portion, It is installed for the purpose of preventing foreign matter from entering inside. In the present embodiment, for example, a connector used in a high-voltage electric system in an electric vehicle, a hybrid vehicle, or the like, such as a wire or a metal wire (metal thin wire) in a non-waterproof connector that does not have a sealing member such as a rubber plug. Although the case where a rear holder is used in order to prevent intrusion of foreign matter is assumed, the use is not limited to this.
　図１～図３には、本実施形態に係るリアホルダ２の構成を示している。図１及び図２はリアホルダ２をコネクタハウジング１０の電線引出部１１に装着した状態を示す斜視図である。図３はリアホルダ２を電線引出部１１に装着する前の状態を示す斜視図である。以下の説明においては、図１に示す矢印Ｘ方向を左右方向、矢印Ｙ方向を前後方向、矢印Ｚ方向を上下方向とする。このうち前後方向については、図１における矢印Ｙ１方向を前側（前方）、矢印Ｙ２方向を後側（後方）とする。ただし、これらの左右方向、前後方向、上下方向は、実施時の各実方向と必ずしも一致していなくともよい。 1 to 3 show the configuration of the rear holder 2 according to the present embodiment. 1 and 2 are perspective views showing a state in which the rear holder 2 is mounted on the wire lead-out portion 11 of the connector housing 10. FIG. 3 is a perspective view showing a state before the rear holder 2 is mounted on the wire lead-out portion 11. In the following description, the arrow X direction shown in FIG. 1 is the left-right direction, the arrow Y direction is the front-rear direction, and the arrow Z direction is the up-down direction. Among these, in the front-rear direction, the arrow Y1 direction in FIG. 1 is the front side (front), and the arrow Y2 direction is the rear side (rear). However, the left-right direction, the front-rear direction, and the up-down direction do not necessarily match the actual directions at the time of implementation.
　図１～図３に示すように、リアホルダ２はコネクタハウジング１０の電線引出部１１から引き出される電線を保持する筒状の電線保持部３と、電線保持部３に連なって形成されて電線引出部１１の開口１２（図６参照）に被冠される被冠部４とを有して構成されている。コネクタハウジング１０の電線引出部１１は後方へ向けて開口されており（図６参照）、電線の端末に接続されたコネクタ端子（図示しない）が該開口１２からコネクタハウジング１０の内部に収容される。そして、収容されたコネクタ端子に接続された電線は電線引出部１１からリアホルダ２を介して後方へ引き出されるようになっている。一方、コネクタハウジング１０の前方はコネクタ端子を接続相手側端子へ臨ませるように開口され、端子同士を電気的に接続させるようになっている。 As shown in FIGS. 1 to 3, the rear holder 2 is formed to be connected to the tubular wire holding portion 3 for holding the wire drawn from the wire drawing portion 11 of the connector housing 10, and the wire holding portion 3. 11 and a crowned portion 4 to be crowned in the opening 12 (see FIG. 6). The wire lead-out portion 11 of the connector housing 10 is opened rearward (see FIG. 6), and a connector terminal (not shown) connected to the end of the wire is accommodated in the connector housing 10 from the opening 12. . And the electric wire connected to the accommodated connector terminal is pulled out rearward from the electric wire extraction part 11 via the rear holder 2. On the other hand, the front of the connector housing 10 is opened so that the connector terminal faces the connection counterpart terminal, and the terminals are electrically connected.
　電線保持部３と被冠部４は該電線保持部３の筒軸方向（前後方向）に沿って二つの分割体５（適宜、電線保持部３ａ,３ｂ及び被冠部４ａ,４ｂ、分割体５ａ,５ｂとして区別する）に分割して形成されている。本実施形態では、二つの分割体５をこれらと同一の素材（例えば樹脂材）で一体をなして形成された連結部（以下、ヒンジという）６で分離不能に連結している。これにより、リアホルダ２の可搬性の低下や部品管理の煩雑化を防止している。また本実施形態では、二つの分割体５は左右方向の一端部で連結されており、ヒンジ６を支点として上下方向に開閉可能となっている。そして、二つの分割体５は両端部の係止部（係止爪）５１,５３を被係止部（係止孔）５２,５４にそれぞれ係合させて組み付けられ、閉止状態を保つようになっている。なお、二つの分割体５を連結することなく別体構造とし、リアホルダ２をコネクタハウジング１０の電線引出部１１に装着する際に、例えばネジ止めやバンド締め等により一体的に組み付ける構造とすることも想定可能である。 The electric wire holding part 3 and the crowned part 4 are divided into two divided bodies 5 (appropriately, the electric wire holding parts 3a and 3b and the crowned parts 4a and 4b, divided parts) along the cylinder axis direction (front-rear direction) of the electric wire holding part 3. 5a and 5b). In the present embodiment, the two divided bodies 5 are connected inseparably by a connecting portion (hereinafter referred to as a hinge) 6 formed integrally with the same material (for example, a resin material). Thereby, the fall of the portability of rear holder 2 and complication of parts management are prevented. Moreover, in this embodiment, the two division bodies 5 are connected by the one end part of the left-right direction, and can be opened and closed by the hinge 6 as a fulcrum in the up-down direction. The two divided bodies 5 are assembled by engaging the locking portions (locking claws) 51 and 53 at both ends with the locked portions (locking holes) 52 and 54, respectively, so as to keep the closed state. It has become. It should be noted that the two divided bodies 5 are not connected to each other and are separated from each other, and when the rear holder 2 is attached to the wire lead-out portion 11 of the connector housing 10, for example, it is integrally assembled by screwing or band fastening. Can also be envisaged.
　二つの分割体５の電線保持部３は、電線の外周部に沿った凹曲面３１を有しており、二つの分割体５が組み付けられる前の状態では該凹曲面３１を上下方向の同一向き（例えば上向き）にして配置される。そして二つの分割体５を組み付けると、凹曲面３１が対向されてこれらの間に円柱状の空洞（以下、電線保持空間という）が形成され、電線引出部１１から外部へ引き出される電線が該電線保持空間で保持されるようになっている。 The electric wire holding part 3 of the two divided bodies 5 has a concave curved surface 31 along the outer periphery of the electric wire, and the concave curved surfaces 31 are oriented in the same direction in the vertical direction before the two divided bodies 5 are assembled. (For example, upward). When the two divided bodies 5 are assembled, the concave curved surfaces 31 are opposed to each other to form a columnar cavity (hereinafter referred to as an electric wire holding space), and the electric wires drawn out from the electric wire drawing portion 11 are the electric wires. It is held in the holding space.
　電線保持部３は、内周部である凹曲面３１から周方向に沿って突出する複数本の突条部（以下、リブという）３２を有している。これらのリブ３２は、電線配索時や電線振動時などに電線に曲げ（撓みや屈曲等）が生じることなく電線保持部３に保持された状態（電線が電線保持空間と略同心をなして直線状に位置付けられている状態）で、いずれも電線外周部と接触するように形成されている。この場合、公差範囲内の最小径寸法の電線の外周部と突出先端が接触可能となるようにリブ３２を形成しておけば、電線の公差範囲内でリブ３２を電線保持空間において電線外周部と確実に接触させることができ、異物として想定する針金等がリブ３２（端的には凹曲面３１）と電線外周部との間をすり抜けることを確実に防止できる。なお、図３には電線保持部３が同一形態の二本のリブ３２を有する構成を一例として示しているが、三本以上のリブを有する構成としても構わない。また、本実施形態ではリブ３２の断面形状を一例として稜線が曲線をなす凸曲形状としているが、例えば半円形状や半楕円形状、矩形状や台形状、あるいは三角形状など任意の形状として構わない。 The electric wire holding portion 3 has a plurality of ridge portions (hereinafter referred to as ribs) 32 that protrude along the circumferential direction from the concave curved surface 31 that is the inner peripheral portion. These ribs 32 are held in the wire holding part 3 without bending (bending, bending, etc.) of the electric wire during wiring or vibration of the electric wire (the electric wire is substantially concentric with the electric wire holding space). In a state of being positioned in a straight line), both are formed so as to come into contact with the outer periphery of the electric wire. In this case, if the rib 32 is formed so that the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range and the protruding tip can be contacted, the rib 32 is arranged in the electric wire holding space within the electric wire tolerance range. It is possible to reliably prevent the wire or the like assumed as a foreign object from slipping through the rib 32 (which is the concavely curved surface 31) and the outer periphery of the electric wire. In addition, in FIG. 3, although the electric wire holding | maintenance part 3 has shown as an example the structure which has the two ribs 32 of the same form, it is good also as a structure which has three or more ribs. Further, in the present embodiment, the rib 32 has a cross-sectional shape as an example, and the ridge line is a convex curved shape. Absent.
　加えてこれらのリブ３２は、電線保持部３において電線に曲げ（撓みや屈曲等）が生じた状態であっても電線保持部３と電線外周部との間にコネクタハウジング１０の内部まで直線状に連通する空隙（以下、連通隙間という）を生じさせない間隔を筒軸方向（前後方向）にあけて配されている。この場合、例えば電線保持部３で電線曲げが生じた状態となって一部のリブ３２が電線外周部から離れたとしても、残りのリブ３２のうち少なくとも一つは電線外周部と接触した状態を保ち、連通隙間が生じてしまうことを防ぐようになっている。その際、前後方向に隣り合うリブ３２同士を近付け過ぎると連通隙間を生じさせてしまうため、電線の径寸法や該電線に負荷される力の程度などに応じて適正間隔でリブ３２を配する。これにより、電線曲げが生じた場合であっても連通隙間を生じさせることがないから、針金等のすり抜けを防ぐことができる。 In addition, these ribs 32 are linear to the inside of the connector housing 10 between the electric wire holding part 3 and the outer periphery of the electric wire even when the electric wire holding part 3 is bent (bent or bent). Are arranged at intervals in the cylinder axis direction (front-rear direction) that do not cause a gap communicating with the cylinder (hereinafter referred to as a communication gap). In this case, for example, even if some of the ribs 32 are separated from the outer periphery of the electric wire in a state where the electric wire is bent in the electric wire holding portion 3, at least one of the remaining ribs 32 is in contact with the outer periphery of the electric wire. To prevent the occurrence of a communication gap. At that time, if the ribs 32 adjacent to each other in the front-rear direction are brought too close to each other, a communication gap is generated. . Thereby, even if it is a case where an electric wire bending arises, since a communication gap is not produced, it can prevent slipping of a wire etc.
　本実施形態では図３に示すように、二つの分割体５の電線保持部３ａ,３ｂにそれぞれリブ３２ａ,３２ｂが形成されている。分割体５ａの電線保持部３ａには、半円周面状をなす凹曲面３１に沿って連続するリブ３２ａが筒軸方向の前後に二本並んで配されており、分割体５ｂの電線保持部３ｂには、半円周面状をなす凹曲面３１に沿って連続するリブ３２ｂが二本のリブ３２ａとそれぞれつながるように、筒軸方向の前後にこれらのリブ３２ａと同一間隔で二本並んで配されている。すなわち、これらのリブ３２ａ,３２ｂは電線保持部３の内周部を一周するように連続し、電線保持空間へ向けて突出するようになっている。 In this embodiment, as shown in FIG. 3, ribs 32 a and 32 b are formed on the electric wire holding portions 3 a and 3 b of the two divided bodies 5, respectively. In the electric wire holding part 3a of the divided body 5a, two ribs 32a continuous along the concave curved surface 31 forming a semicircular surface are arranged side by side in the cylinder axis direction, and the electric wire holding of the divided body 5b. In the portion 3b, two ribs 32b continuous along the concave curved surface 31 having a semicircular surface shape are connected to the two ribs 32a at the same interval with the ribs 32a at the front and rear in the cylinder axis direction. They are arranged side by side. That is, these ribs 32a and 32b are continuous so as to go around the inner peripheral portion of the wire holding portion 3 and protrude toward the wire holding space.
　ここで、コネクタハウジング１０の電線引出部１１に対するリアホルダ２の装着方法の一例について説明する。リアホルダ２を電線引出部１１に装着する場合には、まず一方の分割体５（一例として分割体５ａ）の被冠部４ａを電線引出部１１の開口１２側端部の下方に位置付ける。その際、電線保持部３ａの凹曲面３１を電線引出部１１から外部へ引き出される電線の外周部に沿うようにする。この状態から他方の分割体５（一例として分割体５ｂ）をヒンジ６周りに回動させる力を加えて、電線保持部３ｂの凹曲面３１を電線の外周部に沿わせるべく、該凹曲面３１が電線保持部３ａの凹曲面３１と電線を挟んで対向するように分割体５ｂを移動させて被冠部４ａの上に被冠部４ｂを重ねる。そして、係止部（係止爪）５１,５３を被係止部（係止孔）５２,５４にそれぞれ係合させてこれらの分割体５ａ,５ｂを組み付けることで、被冠部４が開口１２に被冠される。同時に、被冠された被冠部４は被係止部（係止孔）４１に電線引出部１１の係止部（係止爪）１３が係合され、電線引出部１１からの抜け止めが図られる。このように被冠部４が被冠され、被係止部４１が係合されることで、リアホルダ２は電線引出部１１に装着された状態となる。 Here, an example of a method for attaching the rear holder 2 to the wire lead-out portion 11 of the connector housing 10 will be described. When attaching the rear holder 2 to the wire lead-out portion 11, first, the crowned portion 4 a of one divided body 5 (for example, the divided body 5 a) is positioned below the opening 12 side end portion of the wire lead-out portion 11. In that case, the concave curved surface 31 of the electric wire holding part 3a is made to follow the outer peripheral part of the electric wire pulled out from the electric wire extraction part 11 outside. From this state, a force is applied to turn the other divided body 5 (for example, the divided body 5b) around the hinge 6 so that the concave curved surface 31 of the electric wire holding portion 3b is along the outer peripheral portion of the electric wire. The split body 5b is moved so as to face the concave curved surface 31 of the electric wire holding portion 3a with the electric wire interposed therebetween, and the crown portion 4b is overlapped on the crown portion 4a. Then, by engaging the locking portions (locking claws) 51 and 53 with the locked portions (locking holes) 52 and 54 respectively and assembling these divided bodies 5a and 5b, the crowned portion 4 is opened. 12 to be crowned. At the same time, the crowned crowned portion 4 is engaged with the latched portion (locking claw) 13 of the wire lead-out portion 11 in the latched portion (locking hole) 41, so that it is prevented from coming off from the wire lead-out portion 11. Figured. In this way, the crowned portion 4 is crowned and the locked portion 41 is engaged, so that the rear holder 2 is mounted on the wire lead-out portion 11.
　これにより、分割体５ａ,５ｂを組み付けた時に電線保持部３ａ,３ｂの凹曲面３１を対向させて電線保持空間が形成された状態とすることができるから、例えばコネクタハウジング１０の電線引出部１１の手前で電線を二つの分割体５ａ,５ｂの電線保持部３ａ,３ｂで予め挟んでリブ３２ａ,３２ｂの間で締め付けた後、これらの分割体５ａ,５ｂを電線伝いに前進させて被冠部４ａ,４ｂを同時に電線引出部１１の開口１２に被冠させる必要はない。したがって、公差範囲で最小径寸法の電線の外周部と接触可能な突出高さまでリブ３２を高くすることができ、連通隙間を生じさせることをより確実に防止できる。この結果、例えばＩＰコードの保護等級が４級（電線直径１ｍｍ）程度の極細の針金等の侵入を防ぐことが可能となる。また、リブ３２の突出高さをこのような状態とした場合であっても、分割体５ａ,５ｂを組み付けるまではリブ３２ａ,３２ｂが電線外周部と接触しないから、電線をリブ３２ａ,３２ｂの間で締め付けた状態でリアホルダの装着作業を行う場合と比べて電線外周部に与える締付力（押圧力）を抑制できる。 Thereby, when the divided bodies 5a and 5b are assembled, the concave curved surfaces 31 of the electric wire holding portions 3a and 3b can be opposed to each other so that the electric wire holding space is formed, and thus, for example, the electric wire drawing portion 11 of the connector housing 10 Before the wire is sandwiched between the wire holding portions 3a and 3b of the two divided bodies 5a and 5b and tightened between the ribs 32a and 32b, and then the divided bodies 5a and 5b are advanced along the electric wires to be crowned. It is not necessary that the portions 4a and 4b are simultaneously crowned on the opening 12 of the wire lead-out portion 11. Therefore, the rib 32 can be raised to a protruding height at which it can come into contact with the outer peripheral portion of the electric wire having the smallest diameter in the tolerance range, and it is possible to more reliably prevent the communication gap from being generated. As a result, for example, it is possible to prevent intrusion of an extremely thin wire having an IP code protection grade of about class 4 (wire diameter 1 mm). Even when the protruding height of the rib 32 is in such a state, the ribs 32a and 32b do not come into contact with the outer periphery of the electric wire until the divided bodies 5a and 5b are assembled. The tightening force (pressing force) applied to the outer periphery of the electric wire can be suppressed as compared with the case where the mounting operation of the rear holder is performed in a state of being tightened between.
　以上、本発明を図１～図３に示すような一実施形態に基づいて説明したが、上述した実施形態は本発明の一例に過ぎないものであり、本発明は上述した実施形態の構成のみに限定されるものではない。したがって、本発明の要旨の範囲で変形又は変更された形態で本発明を実施可能であることは、当業者にあっては明白なことであり、そのような変形又は変更された形態が本願の特許請求の範囲に属することは当然のことである。 Although the present invention has been described based on one embodiment as shown in FIGS. 1 to 3, the above-described embodiment is only an example of the present invention, and the present invention is only the configuration of the above-described embodiment. It is not limited to. Therefore, it is obvious to those skilled in the art that the present invention can be implemented in a form modified or changed within the scope of the gist of the present invention. It goes without saying that it belongs to the claims.
　上述した本実施形態では電線保持部３の内周部を一周するようにリブ３２ａ,３２ｂを連続させた構成としているが、リブはこのように連続していなくてもよく、例えば図４及び図５に示すリブ３３,３４のように、筒軸方向（同図においては左右方向に相当）に対する位置を互いに相手側分割体５の電線保持部３のリブ３３,３４とはずらしてそれぞれ形成してもよい。これにより、電線外周部と接触するリブ３３,３４の位置が前後方向にずれるため、リアホルダ２を装着するべく二つの分割体５ａ,５ｂを組み付ける際にリブ３３,３４は半円周分ずつしか電線外周部と接触せず、電線外周部に与える締付力（押圧力）を分散させて抑制できる。すなわち、装着作業中は電線を過度に締め付けずに済むから、リアホルダ２の装着作業性の向上を図ることができるとともに、装着作業中ひいては装着後においても電線を損傷させることを防止できる。 In the present embodiment described above, the ribs 32a and 32b are made continuous so as to go around the inner peripheral part of the wire holding part 3, but the ribs do not have to be continuous in this way, for example, FIG. 4 and FIG. Like the ribs 33 and 34 shown in FIG. 5, the positions in the cylinder axis direction (corresponding to the left and right direction in the same figure) are shifted from the ribs 33 and 34 of the wire holding part 3 of the counterpart divided body 5. May be. As a result, the positions of the ribs 33 and 34 in contact with the outer periphery of the electric wire are shifted in the front-rear direction. Therefore, when assembling the two divided bodies 5a and 5b to mount the rear holder 2, the ribs 33 and 34 are only semicircular. The tightening force (pressing force) applied to the outer periphery of the electric wire can be dispersed and suppressed without contacting the outer periphery of the electric wire. That is, since it is not necessary to tighten the electric wire excessively during the mounting operation, it is possible to improve the mounting workability of the rear holder 2, and it is possible to prevent the electric wire from being damaged during the mounting operation and even after the mounting.
　また、上述した本実施形態では電線保持部３の内周部（凹曲面３１）からの突出高さをすべてのリブ３２で同一としているが、かかる突出高さはすべてのリブ３２で同一である必要はない。例えば図４に示すように、各分割体５の電線保持部３のリブ３３は、電線保持部３の内周部（凹曲面３１）からの突出高さを異ならせて形成してもよい。図４では同図の左方向を後方として右側のリブ３３２,３３４よりも左側のリブ３３１,３３３の突出高さを大きくしている。そして、図４(ａ)には公差範囲内の最大径寸法の電線１に曲げが生じることなく、すべてのリブ３３が該電線１の外周部と接触している状態の一例を示している。この場合、少なくとも突出高さの大きい方のリブ３３（図４(ａ)においては左側のリブ３３１,３３３）を公差範囲内の最小径寸法の電線外周部と接触可能となるように形成する。 Moreover, in this embodiment mentioned above, although the protrusion height from the inner peripheral part (concave curved surface 31) of the electric wire holding | maintenance part 3 is made the same with all the ribs 32, this protrusion height is the same with all the ribs 32. There is no need. For example, as shown in FIG. 4, the ribs 33 of the electric wire holding part 3 of each divided body 5 may be formed with different protruding heights from the inner peripheral part (concave surface 31) of the electric wire holding part 3. In FIG. 4, the protruding height of the left ribs 331 and 333 is larger than the right ribs 332 and 334 with the left direction in the figure as the rear. FIG. 4A shows an example of a state where all the ribs 33 are in contact with the outer peripheral portion of the electric wire 1 without bending the electric wire 1 having the maximum diameter within the tolerance range. In this case, at least the rib 33 with the larger protruding height ( left ribs 331 and 333 in FIG. 4A) is formed so as to be able to contact the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range.
　これに対し、電線保持部３（換言すれば電線保持空間）において電線曲げが生じる場合、電線１に作用する力は前側に比べて後側の方が大きいから、その曲げ程度は図４(ｂ)に示すように前側に比べて後側の方が大きくなる（つまり電線曲げ時にリブ３３が電線外周部から離れやすくなる）。したがって、電線保持空間の後側（電線１の引出方向の手前側）のリブ３３ほど突出高さを大きくして形成すれば、電線曲げが生じた場合に連通隙間を生じさせることをより確実に防止できる。図４(ｂ)には公差範囲内の最小径寸法の電線外周部とリブ３３との接触状態の一例を示している。この場合、リブ３３１とリブ３３３、リブ３３２とリブ３３４をそれぞれ同一の突出高さとしているが、リブ３３１の突出高さをリブ３３３よりも小さくし、リブ３３２の突出高さをリブ３３４よりも小さくしても構わない。 On the other hand, when the electric wire bends in the electric wire holding part 3 (in other words, the electric wire holding space), the force acting on the electric wire 1 is larger on the rear side than on the front side, so the degree of bending is shown in FIG. ), The rear side becomes larger than the front side (that is, the rib 33 is easily separated from the outer periphery of the electric wire when the electric wire is bent). Accordingly, if the rib 33 on the rear side of the electric wire holding space (the front side in the drawing direction of the electric wire 1) is formed to have a larger protruding height, a communication gap is more reliably generated when the electric wire is bent. Can be prevented. FIG. 4B shows an example of a contact state between the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range and the rib 33. In this case, the rib 331 and the rib 333, and the rib 332 and the rib 334 have the same protruding height, but the protruding height of the rib 331 is smaller than the rib 333, and the protruding height of the rib 332 is higher than the rib 334. You can make it smaller.
　あるいは例えば図５に示すように、各分割体５の電線保持部３のリブ３４を互い違いに異なる突出高さで形成してもよい。図５では同図の左方向を後方としてリブ３４１,３４４よりもリブ３４２,３４３の突出高さを大きくしている。すなわち、最後方のリブ３４３の突出高さを隣りのリブ３４１よりも大きくし、以降前方へ向けて突出高さが互い違いになるようにリブ３４４,３４２を配している。そして、図５(ａ)には公差範囲内の最大径寸法の電線１に曲げが生じることなく、すべてのリブ３４が該電線１の外周部と接触している状態の一例を示している。この場合、図４に示すリブ３３の場合と同様に、少なくとも突出高さの大きい方のリブ３４（図５(ａ)においてはリブ３４２,３４３）を公差範囲内の最小径寸法の電線外周部と接触可能となるように形成する。 Alternatively, for example, as shown in FIG. 5, the ribs 34 of the electric wire holding portions 3 of the divided bodies 5 may be alternately formed with different projecting heights. In FIG. 5, the protruding height of the ribs 342 and 343 is made larger than the ribs 341 and 344 with the left direction in the figure as the rear. That is, the projecting height of the rearmost rib 343 is made larger than that of the adjacent rib 341, and the ribs 344 and 342 are arranged so that the projecting heights are staggered toward the front thereafter. FIG. 5A shows an example of a state in which all the ribs 34 are in contact with the outer peripheral portion of the electric wire 1 without bending the electric wire 1 having the maximum diameter within the tolerance range. In this case, as in the case of the rib 33 shown in FIG. 4, at least the rib 34 having the larger protruding height (the ribs 342 and 343 in FIG. 5A) is the outer peripheral portion of the wire having the smallest diameter within the tolerance range. It is formed so that it can come into contact with.
　これに対し、電線保持部３（換言すれば電線保持空間）において電線曲げが生じた場合、例えば図５(ｂ)に示すようにリブ３４の間を縫うように電線１を位置付けられるから、電線保持部３（電線保持空間）で電線１が波打つように撓んだ状態でリブ３４を電線外周部と接触させることが可能となる。したがって、公差範囲内で径寸法の異なる電線であっても電線保持空間での撓み具合（波打ち具合）が変動することで電線外周部を確実にリブ３４と接触させて連通隙間を埋めることができる。つまり、公差範囲内の径寸法の電線１であれば連通隙間を生じさせることなく、より確実に異物侵入防止を図ることが可能となる。なお、図５(ｂ)には公差範囲内の最小径寸法の電線外周部とリブ３４との接触状態の一例を示す。 On the other hand, when the electric wire is bent in the electric wire holding part 3 (in other words, the electric wire holding space), for example, the electric wire 1 can be positioned so as to sew between the ribs 34 as shown in FIG. The rib 34 can be brought into contact with the outer peripheral portion of the electric wire in a state where the electric wire 1 is bent so as to wave in the holding portion 3 (electric wire holding space). Therefore, even if the electric wires have different diameters within the tolerance range, the outer peripheral portion of the electric wire can be reliably brought into contact with the ribs 34 and the communication gap can be filled by changing the degree of bending (undulation) in the electric wire holding space. . That is, if the electric wire 1 has a diameter within the tolerance range, it is possible to more reliably prevent entry of foreign matter without causing a communication gap. FIG. 5B shows an example of a contact state between the outer peripheral portion of the electric wire having the smallest diameter within the tolerance range and the rib 34.
　本発明を詳細にまた特定の実施態様を参照して説明したが、本発明の精神と範囲を逸脱することなく様々な変更や修正を加えることができることは当業者にとって明らかである。 Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
　本出願は、2013年12月26日出願の日本特許出願（特願2013－268417）に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on a Japanese patent application filed on December 26, 2013 (Japanese Patent Application No. 2013-268417), the contents of which are incorporated herein by reference.
　２　　　　　　　　　　　リアホルダ
　３（３ａ，３ｂ）　　　　電線保持部
　４（４ａ，４ｂ）　　　　被冠部
　５（５ａ，５ｂ）　　　　分割体
　６　　　　　　　　　　　連結部（ヒンジ）
　１０　　　　　　　　　　コネクタハウジング
　１１　　　　　　　　　　電線引出部
　１２　　　　　　　　　　開口
　３２（３２ａ，３２ｂ）　突条部（リブ） 2 Rear holder 3 (3a, 3b) Electric wire holding part 4 (4a, 4b) Crowned part 5 (5a, 5b) Divided body 6 Connecting part (hinge)
DESCRIPTION OF SYMBOLS 10 Connector housing 11 Electrical wire extraction part 12 Opening 32 (32a, 32b) Projection part (rib)

Claims (3)

  1. 　電線の端末に接続されたコネクタ端子を収容するコネクタハウジングの電線引出部に装着され、前記電線引出部から引き出される電線を保持する筒状の電線保持部と、前記電線保持部に連なって形成されて前記電線引出部の開口に被冠される被冠部とを有し、前記電線保持部と前記被冠部が該電線保持部の筒軸方向に沿って二つの分割体に分割して形成されたリアホルダであって、
    　前記電線保持部は、内周部から周方向に沿って突出して前記電線外周部と接触可能な複数本の突条部を有し、
    　前記突条部は、前記電線保持部において前記電線に曲げが生じた状態であっても前記電線保持部と電線外周部との間に前記コネクタハウジングの内部まで直線状に連通する空隙を生じさせない間隔を前記筒軸方向にあけて配されていることを特徴とするリアホルダ。     A cylindrical wire holding portion that is attached to a wire drawing portion of a connector housing that accommodates a connector terminal connected to the terminal of the wire and holds the wire drawn from the wire drawing portion, and is formed continuously to the wire holding portion. And a crowned portion to be crowned by the opening of the wire lead-out portion, and the wire holding portion and the crowned portion are formed by dividing into two divided bodies along the cylinder axis direction of the wire holding portion. A rear holder,
    The electric wire holding part has a plurality of protrusions that protrude along the circumferential direction from the inner peripheral part and can come into contact with the outer peripheral part of the electric wire,
    The protrusion does not generate a gap that communicates linearly to the inside of the connector housing between the wire holding portion and the outer periphery of the wire even when the wire is bent in the wire holding portion. A rear holder, characterized in that the rear holder is arranged with an interval in the cylinder axis direction.
  2. 　二つの分割体の電線保持部の突条部は、前記筒軸方向に対する位置を互いに相手側分割体の電線保持部の突条部とはずらしてそれぞれ形成されていることを特徴とする請求項１に記載の電線のリアホルダ。 The protrusions of the electric wire holding part of the two divided bodies are formed so as to be shifted from the protrusions of the electric wire holding part of the counterpart divided body with respect to each other with respect to the cylindrical axis direction. The rear holder of the electric wire according to 1.
  3. 　各分割体の電線保持部の突条部は、前記内周部からの突出高さを異ならせて形成されていることを特徴とする請求項１又は２に記載の電線のリアホルダ。 3. The rear holder of the electric wire according to claim 1 or 2, wherein the protruding portion of the electric wire holding portion of each divided body is formed with different protruding heights from the inner peripheral portion.
PCT/JP2014/084710 2013-12-26 2014-12-26 Rear holder WO2015099183A1 (en)

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JP2013268417A JP6271248B2 (en) 2013-12-26 2013-12-26 Rear holder
JP2013-268417 2013-12-26

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
JP2017045540A (en) * 2015-08-24 2017-03-02 矢崎総業株式会社 connector
CN109769403A (en) * 2016-08-01 2019-05-17 Lg伊诺特有限公司 Holder and the motor including the rear holder afterwards
CN109980430A (en) * 2017-12-26 2019-07-05 住友电装株式会社 Connector
EP3525293A1 (en) * 2018-02-08 2019-08-14 Aptiv Technologies Limited Connector with strain relief device
EP3723210A1 (en) * 2019-04-12 2020-10-14 Simon, S.A.U. Strain relief part for the mechanical union between a connector and a cable, assembly and luminaire comprising such part

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102492966B1 (en) * 2017-11-17 2023-01-31 한국단자공업 주식회사 Rear holder for high voltage connector

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JPS618952U (en) * 1984-06-21 1986-01-20 古河電気工業株式会社 IDC connector
JPH0246385U (en) * 1988-09-26 1990-03-29
JPH11144796A (en) * 1997-11-07 1999-05-28 Sumitomo Wiring Syst Ltd Connector
JPH11214079A (en) * 1998-01-23 1999-08-06 Yazaki Corp Structure and method of processing terminal of shielding wire
JP2010080104A (en) * 2008-09-24 2010-04-08 Sumitomo Wiring Syst Ltd Connector

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JPS618952U (en) * 1984-06-21 1986-01-20 古河電気工業株式会社 IDC connector
JPH0246385U (en) * 1988-09-26 1990-03-29
JPH11144796A (en) * 1997-11-07 1999-05-28 Sumitomo Wiring Syst Ltd Connector
JPH11214079A (en) * 1998-01-23 1999-08-06 Yazaki Corp Structure and method of processing terminal of shielding wire
JP2010080104A (en) * 2008-09-24 2010-04-08 Sumitomo Wiring Syst Ltd Connector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017045540A (en) * 2015-08-24 2017-03-02 矢崎総業株式会社 connector
CN109769403A (en) * 2016-08-01 2019-05-17 Lg伊诺特有限公司 Holder and the motor including the rear holder afterwards
EP3493376A4 (en) * 2016-08-01 2019-08-07 LG Innotek Co., Ltd. Rear holder and motor comprising same
US10850886B2 (en) 2016-08-01 2020-12-01 Lg Innotek Co., Ltd. Rear holder and motor comprising same
CN109980430A (en) * 2017-12-26 2019-07-05 住友电装株式会社 Connector
CN109980430B (en) * 2017-12-26 2020-09-29 住友电装株式会社 Connector with a locking member
EP3525293A1 (en) * 2018-02-08 2019-08-14 Aptiv Technologies Limited Connector with strain relief device
EP3723210A1 (en) * 2019-04-12 2020-10-14 Simon, S.A.U. Strain relief part for the mechanical union between a connector and a cable, assembly and luminaire comprising such part

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