EP2491624A1 - Attaching structure of electrical wire cover - Google Patents

Attaching structure of electrical wire cover

Info

Publication number
EP2491624A1
EP2491624A1 EP10776834A EP10776834A EP2491624A1 EP 2491624 A1 EP2491624 A1 EP 2491624A1 EP 10776834 A EP10776834 A EP 10776834A EP 10776834 A EP10776834 A EP 10776834A EP 2491624 A1 EP2491624 A1 EP 2491624A1
Authority
EP
European Patent Office
Prior art keywords
electrical wire
lock
lever
connector housing
wire cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10776834A
Other languages
German (de)
French (fr)
Other versions
EP2491624B1 (en
Inventor
Kenji Suzuki
Kazuhide Ikeya
Kouhei Wachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Publication of EP2491624A1 publication Critical patent/EP2491624A1/en
Application granted granted Critical
Publication of EP2491624B1 publication Critical patent/EP2491624B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62933—Comprising exclusively pivoting lever
    • H01R13/62938—Pivoting lever comprising own camming means
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
    • 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
    • H01R13/5025—Bases; Cases composed of different pieces one or more pieces being of resilient material
    • 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
    • H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • H01R13/567—Traverse cable outlet or wire connection
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62933—Comprising exclusively pivoting lever
    • H01R13/62955—Pivoting lever comprising supplementary/additional locking means

Definitions

  • the present invention relates to an attaching structure of an electrical wire cover for protecting bundles of electrical wires pulled out from an electrical wire pulling-out portion at the rear of a connector housing and for guiding the bundles of the electrical wires in a predetermined direction.
  • PTL 1 discloses an example of an attaching structure of an electrical wire cover according to the prior art.
  • lock protrusions are provided at an electrical wire pulling-out portion of a connector housing and lock arms which engage with the lock protrusions of the connector housing are provided in the electrical wire cover so that, when the electrical wire cover is being attached, the lock arms come into contact with the lock protrusions and are deformed by bending outward to let the lock protrusions pass therethrough and then recover from the bending after the lock protrusions have passed therethrough, thereby allowing the lock arms and the lock protrusions to engage each other so as to lock the electrical wire cover at the attaching position.
  • the present invention has been made in order to solve the above problem, and the object of the present invention is to provide an attaching structure of an electrical wire cover which can prevent the fracture of the lock arm by restricting the excessive bending of the lock arm when the electrical wire cover is being released from the locking state.
  • an attaching structure of an electrical wire cover the electrical wire cover covering electrical wires pulled out from an electrical wire pulling-out portion at a rear portion of a connector housing, the electrical wire cover being detachably attached to the connector housing, the attaching structure comprising: a lock portion provided at the electrical wire cover;
  • a lock arm provided on a side wall of the electrical wire pulling-out portion, and configured to engage with the lock portion to lock the electrical wire cover at a attaching position, the lock arm configured to deform in an outward direction intersecting the side wall so as to allow engagement with and disengagement from the lock portion when the electrical wire cover is attached to and released from the lock portion;
  • a lever rotatably provided at the connector housing, and configured to engage the connector housing with a mating connector housing by rotating operation, the lever being held at a temporary-locking position before the engagement with the mating housing connector;
  • an excessive displacement restriction portion provided on the lever, and configured to come in contact with the lock arm when the lever is held at the temporary-locking position so as to restrict excessive deforming of the lock arm in the outward direction.
  • the lever may have a U-shaped body including: a pair of side plates, arranged in parallel each other so as to face both outer side faces of the connector housing, and rotatably connected to rotation centers provided at both the outer side faces of the connector housing; and a connecting arm connecting the pair of the side plates.
  • the excessive displacement restriction portion is provided at the lever so that it is possible to prevent the excessive outward bending of the lock arm and thus the fracture of the lock arm when releasing the electrical wire cover from the locking state.
  • Fig. 1 is an exploded perspective view, seen from the front side, of a connector unit to which an attaching structure of an electrical wire cover according to an embodiment of the present invention is applied.
  • Fig. 2 is an exploded perspective view of the connector unit as seen from the rear side.
  • Fig. 3 is a side view of the connector unit while being attached.
  • Fig. 4 is a cross-sectional side view of the fully attached connector unit.
  • Fig. 5A is a side view showing a state where an excessive displacement restriction portion in the lever prevents the excessive bending of a lock arm.
  • Fig. 5B is an enlarged view of the core part of the lock arm shown in
  • Fig. 6A is a side view of a comparative example showing a state where the lock arm is excessively bent in a case where the excessive displacement restriction portion is not provided.
  • Fig. 6B is an enlarged view of the core part of the lock arm shown in Fig. 6A.
  • Fig. 1 is an exploded perspective view, seen from the front side, of a connector unit to which an attaching structure of an electrical wire cover according to an embodiment is applied.
  • Fig 2 is an exploded perspective view of the connector unit as seen from the rear side.
  • Fig. 3 is a side view of the connector unit while being attached.
  • Fig. 4 is a cross-sectional side view of the fully attached connector unit showing the configuration of the locking portion between a matt seal cover and the electrical wire cover and the relationship with a lever.
  • Figs. 1 is an exploded perspective view, seen from the front side, of a connector unit to which an attaching structure of an electrical wire cover according to an embodiment is applied.
  • Fig 2 is an exploded perspective view of the connector unit as seen from the rear side.
  • Fig. 3 is a side view of the connector unit while being attached.
  • Fig. 4 is a cross-sectional side view of the fully attached connector unit showing the configuration of the locking portion between a matt seal cover and the electrical wire cover and
  • 5A and 5B include a side view showing a state where an excessive displacement restriction portion of the lever prevents the excessive bending of a lock arm when the lock arm is bent outward to disengage the lock arm of the matt seal cover and a lock portion of the electrical wire cover and an enlarged view of the core part thereof.
  • the connector unit to which the attaching structure of the electrical wire cover according to the embodiment is applied includes a multi-core connector 10, a molded synthetic resin-made lever 20, a rubber or flexible resin-made matt seal 30, a molded synthetic resin-made matt seal cover 40, and a molded synthetic resin-made electrical wire cover 50.
  • the connector 10 is configured by accommodating multiple terminals (not shown in the figure) in a molded synthetic resin-made connector housing 10A.
  • the lever 20 is rotatably attached on the outer side faces of the connector housing 10A so that the lever 20 can be rotated in the direction of arrow A when the connector 10 is being engaged with another connector, not shown in the figure, and thus generates a large engaging force with a small rotating force using the principle of leverage, thereby engaging both the opposing connectors smoothly.
  • the matt seal 30 is to be fitted into the rear of the connector housing 10A to seal a space between electrical wires extending from the terminals accommodated in the connector housing 10A and the connector housing 10A.
  • the matt seal cover 40 (as described later, the matt seal cover 40 corresponds to an electrical wire pulling-out portion of the connector) is firmly attached in the rear of the connector housing 10A to press and support the matt seal 30 from the rear side and to prevent the matt seal 30 from moving out of place.
  • the electrical wire cover 50 is attached in the matt seal cover 40 to protect bundles of the electrical wires pulled out from the rear side of the matt seal cover 40 and to guide the bundles of the electrical wires in a prescribed direction.
  • the connector housing 10A includes a connector main body portion 11 along the inner peripheral face, a hood portion 12 along the outer peripheral face, and a cylindrical wall 13 at the rear.
  • the hood portion 12 is a portion to be engaged with the outer periphery of the engagement cylindrical wall of the connector housing of the other connector.
  • the connector main body portion 11 is a portion to be engaged with the inner periphery of the engagement cylindrical wall of the connector housing of the other connector.
  • the rear of the hood portion 12 is combined with the rear of the connector main body portion 11 and the front end of the cylindrical wall 13.
  • a lock mechanism 14 is provided on the top of the hood portion 12 to lock a lever lock 22c of the lever 20.
  • a front holder 18 is attached on the front of the connector main body portion 11 of the connector housing 10A and a side spacer 19 is attached in a space in the middle of the front and rear direction of the connector main body portion 11 to prevent the terminals from dropping.
  • the lever 20 is a substantially U-shaped body including a pair of side plates 21 at the right and left sides and a connecting arm 22 which connects the side plates 21.
  • the lever 20 is rotatably provided above the connector housing 0A by fitting fixing holes 26 formed on the side plates 21 to bosses 16 provided in a protruding manner on both the outer side faces of the hood portion 12 of the connector housing 10A.
  • the lever 20 is held at a temporary-locking position where the lever stays at rest inclined backward until the opposing connectors start to engage.
  • a temporary-locking means in this case, although not shown, is provided in the shape of, for example, protrusions interfering with each other between the inner faces of the side plates 21 of the lever 20 and the outer face of the connector housing 10A.
  • the temporary-locking means is configured to hold the lever 20 at the temporary-locking position with a predetermined level of holding force until the opposing connectors start to engage and to release from the temporary-locking state by operating the lever 20 with a force exceeding the holding force so as to allow the lever 20 to rotate.
  • the cylindrical wall 13 provided at the rear of the connector housing 10A is open and rectangular at the rear and a space 13a therein accommodates the matt seal 30.
  • a plurality of lock convex portions 15 are provided at the outer periphery of the top and bottom walls, facing each other, of the cylindrical wall 13 to lock the matt seal cover 40.
  • the matt seal cover 40 includes a cylindrical peripheral wall 41 , a thick pressing plate 42 and a connecting wall 44.
  • the cylindrical peripheral wall 41 is to be attached on the outer periphery of the cylindrical wall 13 of the connector housing 10A.
  • the front half of the thick pressing plate 42 is fitted into the space 13a in the cylindrical wall 13 to press forward and support the matt seal 30.
  • the connecting wall 44 secures a ring-shaped groove 46, into which the rear of the cylindrical wall 13 of the connector housing 10A is inserted, between the front half of the pressing plate 42 and the cylindrical peripheral wall 41 by combining the rear edge of the cylindrical peripheral wall 41 and the outer periphery of the pressing plate 42 in the middle of the front and rear direction.
  • a lock portion 43 is provided at each of the top and bottom of the cylindrical peripheral wall 41 to engage with the lock convex portion 15 in the connector housing 10A when the matt seal cover 40 is attached on the cylindrical wall 13 of the connector housing 10A.
  • the matt seal cover 40 is a portion corresponding to the electrical wire pulling-out portion of the connector 10.
  • the electrical wire cover 50 is fixed to the matt seal cover 40 corresponding to the electrical wire pulling-out portion.
  • a band plate-like lock arm 45 is provided at a part of the rear edge on each of the top and bottom of the cylindrical peripheral wall 41 of the matt seal cover 40 with a gap from the connecting wall 44 to lock the electrical wire cover 50.
  • the lock arm 45 is integrally combined with the cylindrical peripheral wall 41 at a base end 45a and a front end 45b, which is a free end thereof, extends backward along the outer peripheral face 42a on the rear half of the pressing plate 42 so that the front end 45 can bend internally and externally in a direction intersecting the outer peripheral face 42a on the rear half of the pressing plate 42.
  • An engagement convex portion 45c is provided at the inner face of the front end 45b, which is a free end thereof, to engage with a lock portion 55a provided at each of the side walls 51a of the electrical wire cover 50.
  • a slant face 45d is provided at the front end of the engagement convex portion 45c to ease the insertion of the lock portion 55a of the electrical wire cover 50.
  • a pair of first slits 45e is provided at the both sides of the lock arm 45 in the width direction in a place where the base end 45a of the lock arm 45 is connected to the cylindrical peripheral wall 41 of the matt seal cover 40.
  • the pair of the first slits 45e is cut off into the middle part between the front and rear edges of the cylindrical peripheral wall 41 from the rear edge of the cylindrical peripheral wall 41. Therefore, the lock arm 45 can be bent externally from near the inner end of the pair of the first slits 45e.
  • the lock arm 45 configured as above is placed at each of the top and bottom outer walls, facing each other (corresponding to a pair of side walls facing each other), out of the outer peripheral faces 42a of the pressing plate 42.
  • an excessive displacement restriction portion 22a is provided on the inner face of the connecting arm 22 of the lever 20.
  • the excessive displacement restriction portion 22a comes closer to the lock arm 45 and restricts the excessive outward bending of the lock arm 45 when the lever 20 is being held at the temporary-locking position. This is for restricting the lock arm 45 from excessively bending when the front end of a jig 200 is inserted into the front end of the lock arm 45 to forcibly bend the lock arm 45 outward when disengaging the lock arm 45.
  • the electrical wire cover 50 is substantially a half cylindrical body having a space for guiding electrical wires inside and includes a half cylindrical (U-shaped cross section) main cover 51 having a pair of side walls 51a at the top and bottom, an end wall (corresponding to the other side wall) 52 provided to block an end side of the half cylindrical main cover 51 , and a half cylindrical electrical wire guide 53 which extends toward the other end side of the half cylindrical main cover 51 to guide the pulling-out direction of electrical wires.
  • the electrical wire guide 53 is a portion that curves and guides bundles of electrical wires received in the main cover 51 toward the side direction of the main cover 51.
  • a through hole 54 for the combined electrical wire bands is provided at the end in the longitude direction of the main cover 51.
  • a wide lock plate 55 is provided at each of the top and bottom side walls 51a of the main cover 51 to connect with the matt seal cover 40 when the electrical wire cover 50 is attached in the matt seal cover 40.
  • a lock portion 55a is provided in the half end of the lock plate 55 toward the electrical wire guide 53 to engage with the lock arm 45 of the matt seal cover 40.
  • the opposite half end of the lock plate 55 to the electrical wire guide 53 configures an insertion portion 55b, corresponding to disengagement prevention means, which is to be inserted into a disengagement prevention portion 48, corresponding to disengagement prevention means, provided in parallel with the lock arm 45 at each of the top and bottom outer peripheral faces of the pressing plate 42 of the matt seal cover 40.
  • a space between the pair of the top and bottom side walls 51a of the main cover 51 of the electrical wire cover 50 is slightly wider than the distance between the top and bottom outer peripheral faces (side walls) 42a of the pressing plate 42 of the matt seal cover 40 so that the electrical wire cover 50 can accommodate multiple electrical wires more easily when being attached in the matt seal cover 40.
  • the pair of the top and bottom lock plates 55 is also, along with the wider space between the side walls 51a, configured to be slightly wider than the distance between the top and bottom lock arms 45 in the matt seal cover 40 so that it is not easy to engage the lock portion 55a with the lock arm 45 as it is. Therefore, the lock portion 55a can be engaged with the lock arm 45 while the space between the lock plates 55 remain narrow by narrowing the space between the pair of the lock plates 55 and inserting the insertion portion 55b into the disengagement prevention portion 48.
  • the lock portion 55a is a portion which comes into contact with the engagement convex portion 45c of the lock arm 45, when attaching the electrical wire cover 50, to push the lock arm 45 outward and slide in while bending the lock arm 45 outward, and then fully engages with the engagement convex portion 45c of the lock arm 45 when the lock portion 55a completely passes through the engagement convex portion 45c and thus the lock arm 45 elastically returns inward to the original position.
  • the lock portion 55a restricts the electrical wire cover 50 from moving in the opposite direction of the attaching direction.
  • the excessive displacement restriction portion 22a of the lever 20 is arranged in a place where the excessive displacement restriction portion 22a allows the lock arm 45 to be bent sufficiently when the lock arm 45 is bent by the insertion of the lock plate 55.
  • the disengagement prevention portion 48 of the matt seal cover 40 consists of pressing plates 48a and reinforcing walls 48b.
  • the pressing plates 48a is extended from the combining wall 44 in the shape of a cover so as to face the top and bottom of the outer peripheral faces of the pressing plate 42 with a predetermined space therebetween.
  • the reinforcing walls 48b reinforce the pressing plates 48a by connecting one end thereof with the top and bottom of the outer peripheral face of the pressing plate 42 and thus resemble substantially an V if seen from the rear side of the insertion direction of the lock plate 55 of the electrical wire cover 50.
  • engagement portions 52a and 47 are provided respectively at the front end of the end wall 52, which corresponds to the other side wall, of the electrical wire cover 50 and at either of the right and left sides of the outer peripheral face, which corresponds to the other side wall, of the pressing plate 42 of the matt seal cover 40, which is the counterpart of the front end of the end wall 52, to engage with each other and thus form a rotation center when attaching the electrical wire cover 50.
  • the disengagement prevention portion 48 and the insertion portion 55b which are disengagement prevention means are placed closer to the engagement portions 52a and 47 than the lock arm 45 and the lock portion 55a which are locking means so that the insertion portion 55b starts to be inserted into the disengagement prevention portion 48 before the engagement between the lock portion 55a and the lock arm 45 starts when the electrical wire cover 50 is rotated toward and attached in the matt seal cover 40.
  • the lever 20 is assembled to the connector housing 10A which configures the connector 10 and the matt seal 30 is fitted into the inner peripheral face of the cylindrical wall 13 of the connector housing 10A at the rear so that the matt seal cover 40 is fixed to the rear of the connector housing 10A while pressing the matt seal 30 (refer to Fig. 4).
  • the lock portion 43 of the matt seal cover 40 engages with the lock convex portion 15 of the connector housing 10A so that the matt seal cover 40 is fixed to the connector housing 10A.
  • multiple electrical wires are pulled out backward from the electrical wire pulling-out portion of the pressing plate 42 of the matt seal cover 40.
  • the engagement portion 52a at the end wall 52 of the electrical wire cover 50 is engaged with the engagement portion 47 at the side face of the matt seal cover 40 to accommodate the electrical wires pulled out backward from the matt seal cover 40 in the space inside the electrical wire cover 50 and, at the same time, the electrical wire cover 50 is rotated toward the matt seal cover 40 around the engagement spot of the engagement portions 52a and 47 as the rotation center.
  • all electrical wires are gathered in the space while both the side walls 51a of the electrical wire cover 50 remain free and loose.
  • an inward pressing force is applied to both the side walls 51a from outside to make the distance between the side walls 51a narrower, and, in this state, the insertion portion 55b of the lock plate 55 is inserted into the disengagement prevention portion 48 of the matt seal cover 40 as it is. If the electrical wire cover 50 is further rotated in this state, the lock portion 55a of the electrical wire cover 50 comes into contact with the front end of the lock arm 45 and bends the lock arm 45 outward. If the electrical wire cover 50 is further rotated, as shown in Fig. 4, the lock portion 55a is engaged with the engagement convex portion 45c of the lock arm 45 when the electrical wire cover 50 is properly attached in the matt seal cover 40 so that the electrical wire cover 50 gets tightly locked.
  • the jig 200 is inserted into the front end 45b of the lock arm 45 to forcibly bend the lock arm 45 outward, and then the electrical wire cover 50 is pulled out in an opposite direction to the attaching direction. In this case, if the jig 200 is inserted by hands, the lock arm 45 can be excessively bent outward and thus fractured.
  • the excessive displacement restriction portion 22a is provided at the connecting arm 22 of the lever 20 to intervene in regard to the lock arm 45 when the lock arm 45 is to be excessively bent outward so that it is possible to prevent the lock arm 45 from being bent excessively.
  • the excessive displacement restriction portion 22a is not provided, if the jig 200 is inserted into the lock arm 45 too strongly by mistake, the lock arm 45 can be bent outward excessively.
  • the present embodiment can avoid such accidents, and thus can protect the lock arm 45.
  • the excessive displacement restriction portion 22a is provided at the lever 20 which comes closer to the lock arm 45 only when the lever 20 stays at the temporary-locking position, it is possible to increase the reliability of the lock arm 45 by adding only a simple device.
  • the present invention should not be limited to the embodiment, and any appropriate variation or improvement is allowed.
  • equivalents may be substituted for the material, shape, dimension, number, arranged place, and the like of the elements thereof without departing from the scope of the invention.
  • the excessive displacement restriction portion 22a is provided at the connecting arm 22 of the lever 20, but it is still possible to set the rotation trajectory of the lever 20 to place the inner face of the connecting arm 22 of the lever 20 in the rotation trajectory of the lock arm 45.
  • the present invention is extremely useful in the electrical wire cover to prevent the fracture of the lock arm by restricting the excessive bending of the lock arm when releasing the electrical wire cover from the locking state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

An attaching structure of an electrical wire cover (50) includes a lever (20) and a lock arm (45) engaged with a lock portion (55a). The lever is rotatably provided at a connector housing (10A), and engages the connector housing with a mating connector housing by rotating operation. The lever is held at a temporary-locking position before the engagement with the mating housing connector. An excessive displacement restriction portion (22a) is provided on the lever. The excessive displacement restriction portion comes in contact with the5 lock arm when the lever is held at the temporary-locking position so as to restrict excessive deforming of the lock arm in an outward direction.

Description

DESCRIPTION
Attaching Structure of Electrical Wire Cover Technical Field
The present invention relates to an attaching structure of an electrical wire cover for protecting bundles of electrical wires pulled out from an electrical wire pulling-out portion at the rear of a connector housing and for guiding the bundles of the electrical wires in a predetermined direction.
Background Art
PTL 1 discloses an example of an attaching structure of an electrical wire cover according to the prior art. In the attaching structure of the electrical wire cover according to the prior art, lock protrusions are provided at an electrical wire pulling-out portion of a connector housing and lock arms which engage with the lock protrusions of the connector housing are provided in the electrical wire cover so that, when the electrical wire cover is being attached, the lock arms come into contact with the lock protrusions and are deformed by bending outward to let the lock protrusions pass therethrough and then recover from the bending after the lock protrusions have passed therethrough, thereby allowing the lock arms and the lock protrusions to engage each other so as to lock the electrical wire cover at the attaching position. Citation List
Patent Literature
[PTL 1] JP-A-09-219245 Summary of Invention
Technical Problem
In releasing the electrical wire cover from the locking state, it is necessary to insert a jig into the free end of the lock arm to forcibly bend the lock arm outward and then pull out the electrical wire cover to release the lock protrusion from the engagement position with the lock arm. In this case, there is a concern that the lock arm may be excessively bent by the insertion of the jig and thus be fractured.
Solution to Problem
The present invention has been made in order to solve the above problem, and the object of the present invention is to provide an attaching structure of an electrical wire cover which can prevent the fracture of the lock arm by restricting the excessive bending of the lock arm when the electrical wire cover is being released from the locking state.
In order to achieve the above object, according to the present invention, there is provide an attaching structure of an electrical wire cover, the electrical wire cover covering electrical wires pulled out from an electrical wire pulling-out portion at a rear portion of a connector housing, the electrical wire cover being detachably attached to the connector housing, the attaching structure comprising: a lock portion provided at the electrical wire cover;
a lock arm, provided on a side wall of the electrical wire pulling-out portion, and configured to engage with the lock portion to lock the electrical wire cover at a attaching position, the lock arm configured to deform in an outward direction intersecting the side wall so as to allow engagement with and disengagement from the lock portion when the electrical wire cover is attached to and released from the lock portion;
a lever, rotatably provided at the connector housing, and configured to engage the connector housing with a mating connector housing by rotating operation, the lever being held at a temporary-locking position before the engagement with the mating housing connector; and
an excessive displacement restriction portion, provided on the lever, and configured to come in contact with the lock arm when the lever is held at the temporary-locking position so as to restrict excessive deforming of the lock arm in the outward direction.
The lever may have a U-shaped body including: a pair of side plates, arranged in parallel each other so as to face both outer side faces of the connector housing, and rotatably connected to rotation centers provided at both the outer side faces of the connector housing; and a connecting arm connecting the pair of the side plates. When the connector housing is being engaged with the mating connector housing, the lever may be rotated forward from the temporary-locking position where the lever stays at rest inclined backward. And the excessive displacement restriction portion may be provided at an inner face of the connecting arm. Advantageous Effects of Invention
According to the attaching structure of the electrical wire cover according to the above configuration, the excessive displacement restriction portion is provided at the lever so that it is possible to prevent the excessive outward bending of the lock arm and thus the fracture of the lock arm when releasing the electrical wire cover from the locking state.
According to the attaching structure of the electrical wire cover according to the above configuration, it is possible to prevent the excessive bending of the lock arm by providing only a tiny device (the excessive displacement restriction portion) on an unseen part (the inner face of the connecting arm) in the lever, thereby increasing the reliability of treatment operation. Brief Description of Drawings
Fig. 1 is an exploded perspective view, seen from the front side, of a connector unit to which an attaching structure of an electrical wire cover according to an embodiment of the present invention is applied. Fig. 2 is an exploded perspective view of the connector unit as seen from the rear side.
Fig. 3 is a side view of the connector unit while being attached.
Fig. 4 is a cross-sectional side view of the fully attached connector unit.
Fig. 5A is a side view showing a state where an excessive displacement restriction portion in the lever prevents the excessive bending of a lock arm.
Fig. 5B is an enlarged view of the core part of the lock arm shown in
Fig. 5A. Fig. 6A is a side view of a comparative example showing a state where the lock arm is excessively bent in a case where the excessive displacement restriction portion is not provided.
Fig. 6B is an enlarged view of the core part of the lock arm shown in Fig. 6A.
Description of Embodiments
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is an exploded perspective view, seen from the front side, of a connector unit to which an attaching structure of an electrical wire cover according to an embodiment is applied. Fig 2 is an exploded perspective view of the connector unit as seen from the rear side. Fig. 3 is a side view of the connector unit while being attached. Fig. 4 is a cross-sectional side view of the fully attached connector unit showing the configuration of the locking portion between a matt seal cover and the electrical wire cover and the relationship with a lever. Figs. 5A and 5B include a side view showing a state where an excessive displacement restriction portion of the lever prevents the excessive bending of a lock arm when the lock arm is bent outward to disengage the lock arm of the matt seal cover and a lock portion of the electrical wire cover and an enlarged view of the core part thereof.
As exploded and shown in Figs. 1 and 2, the connector unit to which the attaching structure of the electrical wire cover according to the embodiment is applied includes a multi-core connector 10, a molded synthetic resin-made lever 20, a rubber or flexible resin-made matt seal 30, a molded synthetic resin-made matt seal cover 40, and a molded synthetic resin-made electrical wire cover 50. The connector 10 is configured by accommodating multiple terminals (not shown in the figure) in a molded synthetic resin-made connector housing 10A. The lever 20 is rotatably attached on the outer side faces of the connector housing 10A so that the lever 20 can be rotated in the direction of arrow A when the connector 10 is being engaged with another connector, not shown in the figure, and thus generates a large engaging force with a small rotating force using the principle of leverage, thereby engaging both the opposing connectors smoothly. The matt seal 30 is to be fitted into the rear of the connector housing 10A to seal a space between electrical wires extending from the terminals accommodated in the connector housing 10A and the connector housing 10A. The matt seal cover 40 (as described later, the matt seal cover 40 corresponds to an electrical wire pulling-out portion of the connector) is firmly attached in the rear of the connector housing 10A to press and support the matt seal 30 from the rear side and to prevent the matt seal 30 from moving out of place. The electrical wire cover 50 is attached in the matt seal cover 40 to protect bundles of the electrical wires pulled out from the rear side of the matt seal cover 40 and to guide the bundles of the electrical wires in a prescribed direction.
As shown in Fig. 1 , the connector housing 10A includes a connector main body portion 11 along the inner peripheral face, a hood portion 12 along the outer peripheral face, and a cylindrical wall 13 at the rear. The hood portion 12 is a portion to be engaged with the outer periphery of the engagement cylindrical wall of the connector housing of the other connector. The connector main body portion 11 is a portion to be engaged with the inner periphery of the engagement cylindrical wall of the connector housing of the other connector. The rear of the hood portion 12 is combined with the rear of the connector main body portion 11 and the front end of the cylindrical wall 13. In addition, a lock mechanism 14 is provided on the top of the hood portion 12 to lock a lever lock 22c of the lever 20. In addition, a front holder 18 is attached on the front of the connector main body portion 11 of the connector housing 10A and a side spacer 19 is attached in a space in the middle of the front and rear direction of the connector main body portion 11 to prevent the terminals from dropping.
As shown in Fig. 1 , the lever 20 is a substantially U-shaped body including a pair of side plates 21 at the right and left sides and a connecting arm 22 which connects the side plates 21. As shown in Fig. 3, the lever 20 is rotatably provided above the connector housing 0A by fitting fixing holes 26 formed on the side plates 21 to bosses 16 provided in a protruding manner on both the outer side faces of the hood portion 12 of the connector housing 10A. The lever 20 is held at a temporary-locking position where the lever stays at rest inclined backward until the opposing connectors start to engage.
A temporary-locking means in this case, although not shown, is provided in the shape of, for example, protrusions interfering with each other between the inner faces of the side plates 21 of the lever 20 and the outer face of the connector housing 10A. The temporary-locking means is configured to hold the lever 20 at the temporary-locking position with a predetermined level of holding force until the opposing connectors start to engage and to release from the temporary-locking state by operating the lever 20 with a force exceeding the holding force so as to allow the lever 20 to rotate.
In addition, when the opposing connectors are engaged, convex portions (not shown) provided in a protruding manner on the housing of the opponent connector are received in an end of each of cam grooves 25 from inlets 27 and 17 provided at each of the peripheral edge of the side plate 21 of the lever 20 and each of the front end of the hood portion 12 of the connector housing 10A with the lever 20 held at the temporary-locking position, the lever 20 is rotated in the direction of arrow A in Fig. 1. Then the opponent connector is pulled into the connector 10 side by the sliding of the convex portions along the cam groove 25 caused by the operation of the cam groove 25, thereby allowing the engagement of the opposing connectors.
As shown in Figs. 2 and 4, the cylindrical wall 13 provided at the rear of the connector housing 10A is open and rectangular at the rear and a space 13a therein accommodates the matt seal 30. A plurality of lock convex portions 15 are provided at the outer periphery of the top and bottom walls, facing each other, of the cylindrical wall 13 to lock the matt seal cover 40.
As shown in Figs. 1 and 2, the matt seal cover 40 includes a cylindrical peripheral wall 41 , a thick pressing plate 42 and a connecting wall 44. The cylindrical peripheral wall 41 is to be attached on the outer periphery of the cylindrical wall 13 of the connector housing 10A. The front half of the thick pressing plate 42 is fitted into the space 13a in the cylindrical wall 13 to press forward and support the matt seal 30. The connecting wall 44 secures a ring-shaped groove 46, into which the rear of the cylindrical wall 13 of the connector housing 10A is inserted, between the front half of the pressing plate 42 and the cylindrical peripheral wall 41 by combining the rear edge of the cylindrical peripheral wall 41 and the outer periphery of the pressing plate 42 in the middle of the front and rear direction. Multiple electrical wire pulling-out holes are provided in the pressing plate 42 corresponding to places of terminals to pull out the electrical wires. In addition, a lock portion 43 is provided at each of the top and bottom of the cylindrical peripheral wall 41 to engage with the lock convex portion 15 in the connector housing 10A when the matt seal cover 40 is attached on the cylindrical wall 13 of the connector housing 10A. When this matt seal cover 40 is attached on the rear of the connector housing 10A, electrical wires are pulled out backward from the rear of the matt seal cover 40, so the matt seal cover 40 is a portion corresponding to the electrical wire pulling-out portion of the connector 10. In this embodiment, the electrical wire cover 50 is fixed to the matt seal cover 40 corresponding to the electrical wire pulling-out portion. A band plate-like lock arm 45 is provided at a part of the rear edge on each of the top and bottom of the cylindrical peripheral wall 41 of the matt seal cover 40 with a gap from the connecting wall 44 to lock the electrical wire cover 50.
The lock arm 45 is integrally combined with the cylindrical peripheral wall 41 at a base end 45a and a front end 45b, which is a free end thereof, extends backward along the outer peripheral face 42a on the rear half of the pressing plate 42 so that the front end 45 can bend internally and externally in a direction intersecting the outer peripheral face 42a on the rear half of the pressing plate 42. An engagement convex portion 45c is provided at the inner face of the front end 45b, which is a free end thereof, to engage with a lock portion 55a provided at each of the side walls 51a of the electrical wire cover 50. In addition, a slant face 45d is provided at the front end of the engagement convex portion 45c to ease the insertion of the lock portion 55a of the electrical wire cover 50.
In addition, a pair of first slits 45e is provided at the both sides of the lock arm 45 in the width direction in a place where the base end 45a of the lock arm 45 is connected to the cylindrical peripheral wall 41 of the matt seal cover 40. By cutting off the lock arms 45 from the rear edge of the cylindrical peripheral wall 41 so as to extend the length of substantially-bent portion of the lock arm 45, the lock arm 45 can be easily bent. The pair of the first slits 45e is cut off into the middle part between the front and rear edges of the cylindrical peripheral wall 41 from the rear edge of the cylindrical peripheral wall 41. Therefore, the lock arm 45 can be bent externally from near the inner end of the pair of the first slits 45e. The lock arm 45 configured as above is placed at each of the top and bottom outer walls, facing each other (corresponding to a pair of side walls facing each other), out of the outer peripheral faces 42a of the pressing plate 42.
In addition, as shown in Figs. 4, 5A and 5B, as a counterpart of the lock arm 45, an excessive displacement restriction portion 22a is provided on the inner face of the connecting arm 22 of the lever 20. The excessive displacement restriction portion 22a comes closer to the lock arm 45 and restricts the excessive outward bending of the lock arm 45 when the lever 20 is being held at the temporary-locking position. This is for restricting the lock arm 45 from excessively bending when the front end of a jig 200 is inserted into the front end of the lock arm 45 to forcibly bend the lock arm 45 outward when disengaging the lock arm 45.
Meanwhile, as shown in Fig. 1 , the electrical wire cover 50 is substantially a half cylindrical body having a space for guiding electrical wires inside and includes a half cylindrical (U-shaped cross section) main cover 51 having a pair of side walls 51a at the top and bottom, an end wall (corresponding to the other side wall) 52 provided to block an end side of the half cylindrical main cover 51 , and a half cylindrical electrical wire guide 53 which extends toward the other end side of the half cylindrical main cover 51 to guide the pulling-out direction of electrical wires. The electrical wire guide 53 is a portion that curves and guides bundles of electrical wires received in the main cover 51 toward the side direction of the main cover 51. A through hole 54 for the combined electrical wire bands is provided at the end in the longitude direction of the main cover 51.
In addition, a wide lock plate 55 is provided at each of the top and bottom side walls 51a of the main cover 51 to connect with the matt seal cover 40 when the electrical wire cover 50 is attached in the matt seal cover 40. A lock portion 55a is provided in the half end of the lock plate 55 toward the electrical wire guide 53 to engage with the lock arm 45 of the matt seal cover 40. In addition, the opposite half end of the lock plate 55 to the electrical wire guide 53 configures an insertion portion 55b, corresponding to disengagement prevention means, which is to be inserted into a disengagement prevention portion 48, corresponding to disengagement prevention means, provided in parallel with the lock arm 45 at each of the top and bottom outer peripheral faces of the pressing plate 42 of the matt seal cover 40.
Herein, a space between the pair of the top and bottom side walls 51a of the main cover 51 of the electrical wire cover 50 is slightly wider than the distance between the top and bottom outer peripheral faces (side walls) 42a of the pressing plate 42 of the matt seal cover 40 so that the electrical wire cover 50 can accommodate multiple electrical wires more easily when being attached in the matt seal cover 40. In addition, the pair of the top and bottom lock plates 55 is also, along with the wider space between the side walls 51a, configured to be slightly wider than the distance between the top and bottom lock arms 45 in the matt seal cover 40 so that it is not easy to engage the lock portion 55a with the lock arm 45 as it is. Therefore, the lock portion 55a can be engaged with the lock arm 45 while the space between the lock plates 55 remain narrow by narrowing the space between the pair of the lock plates 55 and inserting the insertion portion 55b into the disengagement prevention portion 48.
Meanwhile, the lock portion 55a is a portion which comes into contact with the engagement convex portion 45c of the lock arm 45, when attaching the electrical wire cover 50, to push the lock arm 45 outward and slide in while bending the lock arm 45 outward, and then fully engages with the engagement convex portion 45c of the lock arm 45 when the lock portion 55a completely passes through the engagement convex portion 45c and thus the lock arm 45 elastically returns inward to the original position. Thereby, the lock portion 55a restricts the electrical wire cover 50 from moving in the opposite direction of the attaching direction.
In addition, the excessive displacement restriction portion 22a of the lever 20 is arranged in a place where the excessive displacement restriction portion 22a allows the lock arm 45 to be bent sufficiently when the lock arm 45 is bent by the insertion of the lock plate 55.
In addition, as shown in Fig. 2, the disengagement prevention portion 48 of the matt seal cover 40 consists of pressing plates 48a and reinforcing walls 48b. The pressing plates 48a is extended from the combining wall 44 in the shape of a cover so as to face the top and bottom of the outer peripheral faces of the pressing plate 42 with a predetermined space therebetween. The reinforcing walls 48b reinforce the pressing plates 48a by connecting one end thereof with the top and bottom of the outer peripheral face of the pressing plate 42 and thus resemble substantially an V if seen from the rear side of the insertion direction of the lock plate 55 of the electrical wire cover 50.
In addition, as shown in Fig. 1 , engagement portions 52a and 47 are provided respectively at the front end of the end wall 52, which corresponds to the other side wall, of the electrical wire cover 50 and at either of the right and left sides of the outer peripheral face, which corresponds to the other side wall, of the pressing plate 42 of the matt seal cover 40, which is the counterpart of the front end of the end wall 52, to engage with each other and thus form a rotation center when attaching the electrical wire cover 50. Therefore, the disengagement prevention portion 48 and the insertion portion 55b which are disengagement prevention means are placed closer to the engagement portions 52a and 47 than the lock arm 45 and the lock portion 55a which are locking means so that the insertion portion 55b starts to be inserted into the disengagement prevention portion 48 before the engagement between the lock portion 55a and the lock arm 45 starts when the electrical wire cover 50 is rotated toward and attached in the matt seal cover 40.
When the connector unit shown in Figs. 1 and 2 is assembled, the lever 20 is assembled to the connector housing 10A which configures the connector 10 and the matt seal 30 is fitted into the inner peripheral face of the cylindrical wall 13 of the connector housing 10A at the rear so that the matt seal cover 40 is fixed to the rear of the connector housing 10A while pressing the matt seal 30 (refer to Fig. 4). In this case, the lock portion 43 of the matt seal cover 40 engages with the lock convex portion 15 of the connector housing 10A so that the matt seal cover 40 is fixed to the connector housing 10A. In this state, multiple electrical wires are pulled out backward from the electrical wire pulling-out portion of the pressing plate 42 of the matt seal cover 40. Next, the engagement portion 52a at the end wall 52 of the electrical wire cover 50 is engaged with the engagement portion 47 at the side face of the matt seal cover 40 to accommodate the electrical wires pulled out backward from the matt seal cover 40 in the space inside the electrical wire cover 50 and, at the same time, the electrical wire cover 50 is rotated toward the matt seal cover 40 around the engagement spot of the engagement portions 52a and 47 as the rotation center. In this case, in the beginning, all electrical wires are gathered in the space while both the side walls 51a of the electrical wire cover 50 remain free and loose. Once all electrical wires are accommodated in the space, an inward pressing force is applied to both the side walls 51a from outside to make the distance between the side walls 51a narrower, and, in this state, the insertion portion 55b of the lock plate 55 is inserted into the disengagement prevention portion 48 of the matt seal cover 40 as it is. If the electrical wire cover 50 is further rotated in this state, the lock portion 55a of the electrical wire cover 50 comes into contact with the front end of the lock arm 45 and bends the lock arm 45 outward. If the electrical wire cover 50 is further rotated, as shown in Fig. 4, the lock portion 55a is engaged with the engagement convex portion 45c of the lock arm 45 when the electrical wire cover 50 is properly attached in the matt seal cover 40 so that the electrical wire cover 50 gets tightly locked.
Next, when the lock arm 45 of the matt seal cover 40 and the electrical wire cover 50 are disengaged to release the electrical wire cover 50, as shown in Figs. 5A and 5B, the jig 200 is inserted into the front end 45b of the lock arm 45 to forcibly bend the lock arm 45 outward, and then the electrical wire cover 50 is pulled out in an opposite direction to the attaching direction. In this case, if the jig 200 is inserted by hands, the lock arm 45 can be excessively bent outward and thus fractured. However, in this embodiment, the excessive displacement restriction portion 22a is provided at the connecting arm 22 of the lever 20 to intervene in regard to the lock arm 45 when the lock arm 45 is to be excessively bent outward so that it is possible to prevent the lock arm 45 from being bent excessively. In other words, as shown in Figs. 6A and 6B, it can be considered that, when the excessive displacement restriction portion 22a is not provided, if the jig 200 is inserted into the lock arm 45 too strongly by mistake, the lock arm 45 can be bent outward excessively. The present embodiment can avoid such accidents, and thus can protect the lock arm 45. Moreover, since the excessive displacement restriction portion 22a is provided at the lever 20 which comes closer to the lock arm 45 only when the lever 20 stays at the temporary-locking position, it is possible to increase the reliability of the lock arm 45 by adding only a simple device.
Meanwhile, the present invention should not be limited to the embodiment, and any appropriate variation or improvement is allowed. In addition, it will be understood by those skilled in the art that equivalents may be substituted for the material, shape, dimension, number, arranged place, and the like of the elements thereof without departing from the scope of the invention. For instance, in the present embodiment, the excessive displacement restriction portion 22a is provided at the connecting arm 22 of the lever 20, but it is still possible to set the rotation trajectory of the lever 20 to place the inner face of the connecting arm 22 of the lever 20 in the rotation trajectory of the lock arm 45.
In addition, although a case has been described in which the present invention is applied between the matt seal cover attached on the rear of the connector and the electrical wire cover in the present embodiment, it is still possible to apply the present invention to the electrical wire pulling-out portion of the connector housing and the electrical wire cover when the matt seal cover is not used.
The present application is based on Japanese Patent Application No. 2009-243445 filed on October 22, 2009, the contents of which are incorporated herein by reference.
Industrial Applicability
The present invention is extremely useful in the electrical wire cover to prevent the fracture of the lock arm by restricting the excessive bending of the lock arm when releasing the electrical wire cover from the locking state.
Reference Signs List
10a Connector Housing
20 Lever
21 Side Plate
22 Connecting Arm
22a Excessive Displacement Restriction Portion
40 Matt Seal Cover (Electrical Wire Pulling-Out Portion)
42a Outer Peripheral Face of Pressing Plate (Side Wall)
45 Lock Arm
50 Electrical Wire Cover
55a Lock Portion

Claims

1. An attaching structure of an electrical wire cover, the electrical wire cover covering electrical wires pulled out from an electrical wire pulling-out portion at a rear portion of a connector housing, the electrical wire cover being detachably attached to the connector housing, the attaching structure comprising:
a lock portion provided at the electrical wire cover;
a lock arm, provided on a side wall of the electrical wire pulling-out portion, and configured to engage with the lock portion to lock the electrical wire cover at a attaching position, the lock arm configured to deform in an outward direction intersecting the side wall so as to allow engagement with and disengagement from the lock portion when the electrical wire cover is attached to and released from the lock portion;
a lever, rotatably provided at the connector housing, and configured to engage the connector housing with a mating connector housing by rotating operation, the lever being held at a temporary-locking position before the engagement with the mating housing connector; and
an excessive displacement restriction portion, provided on the lever, and configured to come in contact with the lock arm when the lever is held at the temporary-locking position so as to restrict excessive deforming of the lock arm in the outward direction.
2. The attaching structure as set forth in Claim 1 , wherein:
the lever has a U-shaped body including:
a pair of side plates, arranged in parallel each other so as to face both outer side faces of the connector housing, and rotatably connected to rotation centers provided at both the outer side faces of the connector housing; and
a connecting arm connecting the pair of the side plates, and when the connector housing is being engaged with the mating connector housing, the lever is rotated forward from the temporary-locking position where the lever stays at rest inclined backward, and
the excessive displacement restriction portion is provided at an inner face of the connecting arm.
EP10776834.3A 2009-10-22 2010-10-22 Attaching structure of electrical wire cover Not-in-force EP2491624B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009243445A JP5403806B2 (en) 2009-10-22 2009-10-22 Wire cover mounting structure
PCT/JP2010/069227 WO2011049242A1 (en) 2009-10-22 2010-10-22 Attaching structure of electrical wire cover

Publications (2)

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EP2491624A1 true EP2491624A1 (en) 2012-08-29
EP2491624B1 EP2491624B1 (en) 2014-08-27

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EP10776834.3A Not-in-force EP2491624B1 (en) 2009-10-22 2010-10-22 Attaching structure of electrical wire cover

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EP (1) EP2491624B1 (en)
JP (1) JP5403806B2 (en)
CN (1) CN102576960B (en)
BR (1) BR112012000086A2 (en)
WO (1) WO2011049242A1 (en)

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JP5840929B2 (en) * 2011-11-10 2016-01-06 矢崎総業株式会社 Protector
JP2016207414A (en) * 2015-04-21 2016-12-08 住友電装株式会社 connector
JP6185960B2 (en) 2015-05-27 2017-08-23 矢崎総業株式会社 connector
JP6861690B2 (en) * 2018-11-26 2021-04-21 矢崎総業株式会社 Assembled structure of cover and housing, and fusible link unit
JP6993393B2 (en) * 2019-10-31 2022-01-13 矢崎総業株式会社 Lever type connector

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JP3141770B2 (en) * 1996-02-13 2001-03-05 住友電装株式会社 Connector cover fixing structure
JP2001250636A (en) * 2000-03-03 2001-09-14 Yazaki Corp Lock structure of connector
JP2003223955A (en) * 2002-01-29 2003-08-08 Sumitomo Wiring Syst Ltd Lever connector
JP2003272755A (en) * 2002-03-18 2003-09-26 Yazaki Corp Connector with cover
JP2003272768A (en) * 2002-03-18 2003-09-26 Yazaki Corp Connector with cover
JP4089514B2 (en) * 2003-05-28 2008-05-28 住友電装株式会社 connector
JP4285376B2 (en) * 2004-09-06 2009-06-24 住友電装株式会社 Lever type connector
JP4520315B2 (en) * 2005-01-21 2010-08-04 タイコエレクトロニクスジャパン合同会社 Wire cover for connector
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Also Published As

Publication number Publication date
EP2491624B1 (en) 2014-08-27
CN102576960B (en) 2014-06-25
JP5403806B2 (en) 2014-01-29
JP2011090881A (en) 2011-05-06
CN102576960A (en) 2012-07-11
WO2011049242A1 (en) 2011-04-28
BR112012000086A2 (en) 2018-03-13

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