JP5434832B2 - connector - Google Patents

Description

  The present invention relates to a connector.

The connector described in Patent Document 1 includes a housing in which a terminal fitting connected to the end of an electric wire is accommodated, and an electric wire cover that is attached to the housing from the rear so as to cover the electric wire drawn out from the housing. Yes.
The electric wire cover has a cap shape opened forward, and has a pair of side walls facing each other. A plurality of leg portions project from the front end edges of the side walls, and a receiving portion into which each leg portion is inserted is provided at the rear end edge of the housing. The projecting dimensions of the leg portions are substantially the same, and the tip positions of the leg portions are aligned at the same position.

Japanese Utility Model Publication No. 6-36242

  By the way, in the connector with an electric wire cover as described above, when attaching the electric wire cover, the tip of each leg portion is directly opposed to the corresponding receiving portion, and from that state, each leg portion is inserted into each receiving portion at almost the same timing. I have to let it. If any one of the leg portions is displaced from the corresponding receiving portion, there is a situation in which the mounting operation of the wire cover to the housing is not smoothly performed and the workability of the assembly is deteriorated. However, exact positioning is not necessarily required if each leg is inserted into the corresponding receiving part with considerable play. In this case, however, the electric wire cover may rattle with respect to the housing within the range of play.

  This invention is completed based on the above situations, Comprising: While improving the workability | operativity of attachment of an electric wire cover, it aims at preventing the shakiness of an electric wire cover.

  As means for achieving the above-mentioned object, the invention of claim 1 is characterized in that a housing in which a terminal fitting connected to an end of an electric wire is accommodated, and the electric wire drawn out from the housing are covered with the housing. An electric wire cover to be attached, and the electric wire cover has a pair of side walls opposed to each other, and a plurality of leg portions projecting in an attaching direction of the electric wire cover to the housing at an end edge of the both side walls. The housing is provided with a plurality of receiving portions into which the respective leg portions are fitted and inserted, and a bracket mounting portion to be attached to the bracket is provided on one side wall of the both side walls. The other side wall of the both side walls has one leading leg projecting longer than the other leg parts so as to be inserted into the receiving part first among the leg parts. Having the features in place that has been kicked.

  According to a second aspect of the present invention, in the first aspect of the present invention, the housing is provided with a lock receiving portion, and the lock receiving portions are elastically locked to the edges of the both side walls. A lock portion for holding the electric wire cover on the housing is provided so as to protrude substantially parallel to the leg portion, and the leg portion is arranged on the inner side in the bending direction of the lock portion.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, a taper-shaped guide portion that leads to the receiving portion is provided at a tip portion of each leg portion, and The guide portion is characterized in that the length in the insertion direction is longer than the guide portions of the other leg portions.

  According to a fourth aspect of the present invention, the wire cover according to any one of the first to third aspects, wherein the leading leg is inserted into the receiving portion and the insertion position is a substantially fulcrum. It is characterized in that it can be rotated and mounted on the housing.

<Invention of Claim 1>
A bracket mounting portion to be attached to the bracket is provided on one side wall of the both side walls, and the other side wall of the both side walls is inserted into the receiving portion first in each leg portion. Since one leading leg that protrudes longer than the other leg is provided, the wire covering is positioned with respect to the housing by inserting this one leading leg into the corresponding receiving part, and then The other preceding leg portions are smoothly inserted into the corresponding receiving portions. Therefore, the positioning point is covered only by the leading leg, and the workability of attaching the wire cover is improved.

  By the way, since the bracket mounting portion is provided on one side wall, if an external force is received from the bracket side, the other side wall tilts in a direction away from the housing with the bracket mounting portion as a substantial fulcrum, and the wire cover is There is a risk of rattling. However, according to the present invention, the preceding leg portion is provided on the other side wall opposite to the one side wall provided with the bracket mounting portion, and the preceding leg portion is located in the corresponding receiving portion more than the other leg portion. Since it is inserted deeply, it is avoided that the other side wall tilts away from the housing. As a result, play of the wire cover is prevented.

<Invention of Claim 2>
Since the leg portion is arranged inside the bending direction of the lock portion, the smoothness of the bending operation of the lock portion is ensured, and the locking reliability by the lock portion is enhanced. Further, since the electric wire drawn out from the housing is arranged inside the leg portion, the electric wire is prevented from being bitten between the edge of the side wall and the housing.

<Invention of Claim 3>
Since the guide portion of the preceding leg portion is longer in the insertion direction than the guide portions of the other leg portions, the leading leg portion can be smoothly inserted into the receiving portion.

<Invention of Claim 4>
With the leading leg inserted into the receiving part, the wire cover can be rotated and attached to the housing with the insertion position as a substantially fulcrum, so the workability of attaching the wire cover is improved. .

FIG. 4 is a plan view of the connector before the lever is mounted according to the first embodiment of the present invention. It is AA sectional drawing of FIG. It is a front view of the connector before a lever is mounted | worn. It is a top view of the connector just before making it fit with the other party housing. It is a rear view of a connector. It is a top view of an electric wire cover. It is a front view of an electric wire cover. It is a side view of an electric wire cover. It is a top view of a housing. It is a rear view of a housing. It is a side view of a housing. It is a top view in the middle of attaching an electric wire cover to a housing. It is YY sectional drawing of FIG. It is ZZ sectional drawing of FIG.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 4, the connector according to the first embodiment includes a housing 10, an electric wire cover 40, and a lever 80. The housing 10 can be fitted to the mating housing 90 and is attached to the panel 100 via a bracket 80 as shown in FIG. In the following description, in the front-rear direction, the mutual fitting surface side of both housings 10 and 90 is the front.

  The housing 10 is made of synthetic resin, and includes a housing body 11 having a generally rectangular block shape as a whole and a hood portion 12 having a generally rectangular tube shape protruding forward from the front end of the housing body 11. A mating housing 90 is fitted in the hood portion 12. As shown in FIGS. 9 to 11, a pair of support shafts 13 project from the central portion of both side surfaces of the housing 10, which is a substantially boundary position between the housing main body 11 and the hood portion 12. Both the support shafts 13 have a substantially cylindrical shape, and a lever 80 is rotatably mounted around the support shaft 13.

  A plurality of male terminal fittings (not shown) are attached to the housing body 11, and tabs of the male terminal fittings are arranged in the hood portion 12 so as to protrude. Each male terminal fitting is connected to a terminal portion of the electric wire 200, and each connected electric wire 200 is pulled out from the rear surface of the housing 10.

  A pair of left and right (a pair in the width direction) lock receiving portions 14 are formed on the rear end edges of both side surfaces of the housing body 11 so as to protrude rearward. Each lock receiving portion 14 has a plate-like shape along the width direction, and has a stepped shape in which the width dimension is gradually reduced toward the rear end. A lock protrusion 15 is provided so as to protrude from a substantially central portion of the outer surface of each lock receiving portion 14. The lock protrusion 15 has a triangular cross-section that gradually decreases in thickness toward the rear end, and has a tapered surface 16 on the outer surface thereof. On the rear surface of the housing body 11, a pair of left and right receiving portions 17 are provided at positions facing the inside of each lock receiving portion 14. Each receiving part 17 is configured to open in a flat shape elongated in the width direction, and is configured to have the same depth. Here, the center in the width direction of each receiving portion 17 is displaced from the center in the width direction of each corresponding lock receiving portion 14, and is disposed outward in the width direction of each corresponding lock receiving portion 14.

  The lever 80 is made of synthetic resin, and has an operation portion 81 and a pair of arm portions 82 projecting substantially in parallel from both ends thereof, and has a gate shape as a whole. The lever 80 is rotatable between an initial position and a fitting position about the both support shafts 13 in a state where the both arm portions 82 are fitted to the both support shafts 13. The lever 80 is engaged with the mating housing 90 in the initial position, and in the process from the initial position to the mating position, the lever 80 performs a cam action with the mating housing 90 in the engaged state. Are pulled into the housing 10 side, and both housings 10 and 90 are held in the fitted state at the fitting position. As shown in FIG. 4, when the lever 80 is in the initial position, the operation portion 81 is located in the vicinity of the projecting piece 18 projecting sideways from one side in the width direction of the rear end of the housing body 11. An inadvertent turning operation of the operation portion 81 toward the fitting position side is restricted by the projecting piece 18.

  Next, the electric wire cover 40 will be described. The electric wire cover 40 is also made of a synthetic resin, and as shown in FIGS. The electric wire cover 40 is attached to the housing 10 from the rear, and has an electric wire storage space 41 (a space inside each leg portion 61 to be described later) in which the electric wires 200 are stored in a bent state. . Specifically, the electric wire cover 40 includes a base wall 42 that faces the rear surface of the housing body 11 and a pair of side walls 43 that protrude forward from both side edges of the base wall 42, and one side surface in the width direction serves as the electric wire outlet 44. It is open. Each electric wire 200 is disposed along the inner surface of the base wall 42 and is drawn out from the electric wire outlet 44.

  A bracket mounting portion 45 is provided on one of the side walls 43 (hereinafter referred to as a first side wall 43A). The bracket mounting portion 45 has a bag-shaped bracket mounting main body 46 opened rearward, and a mounting space 47 for the bracket 80 is held inside the bracket mounting main body 46 as shown in FIGS. Yes. In the mounting space 47, the front end of the bracket 80 is inserted and fixed, and at the rear end of the bracket mounting body 46, an expansion portion that expands in a trumpet shape so that the bracket 80 can be easily received. 48 is provided. In addition, a relief portion 49 that can avoid interference with the lever 80 is formed in the front end edge of the bracket attachment portion 45, and a large moment arm of the lever 80 is secured by the relief portion 49. The front and rear length of the entire connector can be shortened.

  As shown in FIG. 2, in a state where the electric wire cover 40 is attached to the bracket 80, the housing 10 and the electric wire cover 40 are in a state where the surface on the side where the first side wall 43 </ b> A is positioned is opposed to the plate surface of the panel 100. These are arranged substantially parallel to the panel 100.

  Further, a pair of left and right lock portions 51 are provided on both side walls 43 of the wire cover 40. Each lock portion 51 has a plate shape along the width direction, and can be bent and deformed between the cuts 52 on both sides in the width direction. The front ends of the lock portions 51 are disposed in front of the front ends of the side walls 43 and are aligned at substantially the same position. Inside each lock portion 51, there is a lock groove 53 that extends in the front-rear direction and opens at the rear ends of both side walls 43. When the wire cover 40 is properly attached to the housing 10, each lock portion 51 elastically locks the corresponding lock receiving portion 14, and the lock protrusion 15 is fitted into the lock groove 53, so that the wire cover 40 is Detachment from the housing 10 is regulated.

  A support plate 54 is provided inside each lock groove 53 in the electric wire cover 40, and protrusions 55 that form a pair on the left and right are provided on each support plate 54 so as to extend in the front-rear direction. The lock receiving portion 14 is slidably supported on the protrusion 55 of each support plate 54.

  A pair of left and right leg portions 61 are provided on the front edge of the side walls 43 so as to protrude forward (in the direction in which the wire cover 40 is attached to the housing 10). Each leg part 61 has comprised the plate shape along the width direction. The plate thickness of each leg portion 61 is larger than the plate thickness of each lock portion 51 and is substantially the same. And the front end of each leg part 61 is arrange | positioned ahead of the front end of each lock part 51. FIG. Moreover, the plate | board thickness of the base side of each leg part 61 is mutually made substantially the same.

  Each leg portion 61 is arranged on the inner side in the bending direction of each lock portion 51, and among these, the leg portion 61 located on one side in the width direction is arranged at the end of both side walls 43 so as to face the electric wire outlet 44. The leg portion 61 located on the other side in the width direction is disposed at a position where it wraps with each lock portion 51 in the width direction.

  When the wire cover 40 is attached to the housing 10, each leg portion 61 is inserted into the corresponding receiving portion 17 before each lock portion 51 engages each lock receiving portion 14. At this time, the base side of each leg portion 61 is fitted between the inner surfaces on both sides of the receiving portion 17 with almost no gap, and the tip of each leg portion 61 has a sufficient clearance between the bottom surface of the receiving portion 17. Be placed. A concave groove 62 extending along the front-rear direction is provided on the inner surface (opposing surface) of each leg portion 61.

  In addition, a tapered guide portion 63 with a tapered tip is provided at the tip of each leg 61 at a portion excluding the groove 62. The guide portion 63 allows the leg portion 61 to be smoothly inserted into the receiving portion 17.

  Now, one leg 61 of each leg 61 has a protruding length longer than that of the other leg 61, and its front end is disposed forward of the front end of the other leg 61. The one leg portion 61 is a leading leg portion 61 </ b> A that is inserted into the receiving portion 17 prior to the other leg portion 61. The leading leg 61A is disposed on the side wall (hereinafter referred to as the second side wall 43B) located on the opposite side to the first side wall 43A of the both side walls 43, and the other side in the width direction (electric wire) on the second side wall 43B. It is arranged on the side opposite to the outlet 44.

  The guide portion 63A of the preceding leg portion 61A is longer in the front-rear direction (in the direction of insertion into the receiving portion 17) than the guide portion 63 of the other leg portion 61. As a result, the taper angle (inclination angle from the vertical axis) of the guide portion 63A of the preceding leg portion 61A is smaller than the taper angle of the guide portion 63 of the other leg portion 61, and the guide portion 63A of the preceding leg portion 61A. The width dimension at the front end is smaller than the width dimension at the front end of the guide portion 63 of the other leg portion 61. For this reason, the leading leg portion 61 </ b> A is easily inserted into the receiving portion 17.

  The structure of the connector according to this embodiment is as described above. Next, the operation of attaching the wire cover 40 to the housing 10 will be described.

  First, as shown in FIG. 12, the wire cover 40 is arranged in an oblique posture with respect to the housing 10 while floating one end side in the width direction of the wire cover 40, and in this state, the guide portion 63A of the leading leg portion 61A corresponds. To be inserted into the receiving portion 17. At this time, as shown in FIG. 14, the leg portion 61 located on the other side in the width direction of the first side wall 43A is also inserted shallowly into the corresponding receiving portion 17 following the preceding leg portion 61A. When the leading leg 61A is inserted into the corresponding receiving part 17 in this way, the leading leg 61A is fitted in the receiving part 17 in a state in which the movement in the direction orthogonal to the width direction is restricted, and the housing 10 The electric wire cover 40 is positioned with respect to. Subsequently, the electric wire cover 40 is rotated with respect to the housing 10 with the leading leg 61 </ b> A as a substantially fulcrum so that one end in the width direction of the electric wire cover 40 is brought close to the housing 10. Then, the remaining leg portions 61 are inserted into the corresponding receiving portions 17, and then each lock portion 51 elastically locks the corresponding lock receiving portion 14. As a result, as shown in FIG. 1, the electric wire cover 40 is fixed to the housing 10, and the electric wires 200 are bent into the electric wire storage space 41 and pulled out from the electric wire outlet 44 to one side in the width direction. Thereafter, the mating housing 90 is shallowly fitted, and the lever 80 is rotated from the initial position toward the fitting position, whereby the two housings 10 and 90 are properly fitted to each other.

  By the way, if an external force acts on the bracket 80 side, the second side wall 43B tilts in the direction of lifting from the housing 10 with the first side wall 43A provided with the bracket mounting portion 45 provided as a substantial fulcrum, so that the wire cover 40 is There is a risk of rattling with respect to 10. However, according to this embodiment, since the leading leg 61A is inserted deeply into the receiving portion 17 in a fitted state, the leading leg 61A comes into contact with the inner side surface of the receiving portion 17 and thereby the second side wall 43B. , And the backlash of the wire cover 40 is suppressed.

  As described above, according to the present embodiment, since the leading leg 61A is inserted into the receiving portion 17, the electric wire cover 40 is positioned with respect to the housing 10, and thereafter, the other leg portions 61 are also disposed. The lock receiving portion 17 is smoothly inserted into the corresponding receiving portion 17 and each lock portion 51 securely locks the corresponding lock receiving portion 14. Therefore, the positioning point is covered only by the leading leg 61A, and the workability of attaching the wire cover 40 is improved.

  Moreover, since the corresponding leg part 61 is arrange | positioned inside the bending direction of each lock part 51, the smoothness of the bending operation | movement of each lock part 51 is ensured, and the latching reliability by the lock part 51 is improved. And each electric wire 200 pulled out from the housing 10 is arrange | positioned inside each leg part 61, and it is prevented that the electric wire 200 is bit | engaged between the edge of the both-sides wall 43, and the housing 10. FIG.

  Further, since the guide portion 63A of the preceding leg portion 61A is longer in the front-rear direction than the guide portion 63 of the other leg portion 61, the insertion of the preceding leg portion 61A into the receiving portion 17 is smooth. In addition, as described above, the wire cover 40 can be rotated and attached to the housing 10. And since the electric wire cover 40 can be rotated and attached to the housing 10 with the insertion position as a substantially fulcrum in a state where the leading leg portion 61A is inserted into the receiving portion 17, the electric wire cover 40 is attached. The workability is improved.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The leg part should just be provided in each of both side walls, and the total number of a leg part is arbitrary.
(2) It suffices if a lock portion is provided on each of both side walls, and the total number of lock portions is arbitrary.
(3) The leading leg may be arranged on one side in the width direction of the second side wall (on the electric wire outlet side).
(4) The electric wire cover may be attached while being pulled down substantially parallel to the housing.

DESCRIPTION OF SYMBOLS 10 ... Housing 14 ... Lock receiving part 17 ... Receiving part 40 ... Electric wire cover 43 ... Side wall 43A ... 1st side wall (one side wall)
43B ... 2nd side wall (the other side wall)
45 ... Bracket mounting part 51 ... Locking part 61 ... Leg part 61A ... Preceding leg part 63 ... Guide part 63A ... Guide part of preceding leg part 80 ... Bracket

Claims (4)

A housing that accommodates a terminal fitting connected to the end of the electric wire;
An electric wire cover attached to the housing so as to cover the electric wire drawn from the housing;
The wire cover has a pair of side walls facing each other;
A plurality of legs are provided at the edges of the both side walls, protruding in the direction in which the wire cover is attached to the housing,
The housing is provided with a plurality of receiving portions into which the respective leg portions are fitted and inserted,
One side wall of the both side walls is provided with a bracket mounting portion to be attached to the bracket,
The other side wall of the both side walls is provided with one leading leg projecting longer than the other leg parts so as to be inserted into the receiving part first among the leg parts. A connector characterized by that.   The housing is provided with a lock receiving portion, and at the end edges of the both side walls, a lock portion for elastically locking the lock receiving portion and holding the wire cover on the housing is provided with the leg portion. The connector according to claim 1, wherein the connector is provided so as to project substantially in parallel, and the leg portion is disposed on the inner side in the bending direction of the lock portion.   The tip of each leg is provided with a taper-shaped guide part that leads into the receiving part, and the guide part of the preceding leg part is inserted in the insertion direction more than the guide part of the other leg part. The connector according to claim 1, wherein the length of the connector is long.   4. The electric wire cover can be attached to the housing by being rotated around the insertion position in a state where the leading leg portion is inserted into the receiving portion. The connector described.

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