JP2013251115A - Electric wire protective structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric wire protective structure capable of preventing working efficiency after cutting of a band part from deteriorating.SOLUTION: An electric wire protective structure for protecting electric wires W withdrawn from a connector 10 comprises: a wire protective cover 1 attached to the connector 10 and having an electric wire housing path 4 for housing the electric wires W, opened in an electric wire routing direction; a band part 21 for restraining the electric wires W to the wire protective cover 1; and a restraining band 20 having an insulok part 22 for locking the band part 21 at a position where the electric wires W are restrained to the wire protective cover 1. A protective wall 8 for covering the cutting place of the band part 21 withdrawn from the insulok part 22 and cut is provided in the wire protective cover 1.

Description

  The present invention relates to an electric wire protection structure for protecting an electric wire drawn from a connector.

  Conventionally, various wire protection structures have been proposed (see Patent Documents 1 and 2). As an electric wire protection structure, there is one in which an electric wire protection cover is assembled to a connector and the electric wire is protected by the electric wire protection cover (see Patent Document 3). One conventional example of such a wire protection structure is shown in FIGS.

  9 to 12, the connector 110 includes a connector housing 111 and a plurality of terminals 112 accommodated in the connector housing 111. An electric wire W is connected to each terminal 112. These electric wires W are drawn out from the rear surface of the connector housing 111.

  The wire protection cover 100 is assembled to the rear surface side of the connector housing 111. The electric wire protection cover 100 includes a cover main body 101 that covers the rear surface of the connector housing 111 and extends in the electric wire routing direction, and a connector assembly portion 102 provided on one end side of the cover main body 101. The cover main body 101 has a generally semi-cylindrical shape, and an electric wire receiving path 104 is formed therein. The electric wire accommodating path 104 has an opening 104a along the electric wire routing direction.

  The restraint band 120 includes a band-shaped band part 121 and an insulation lock part 122 fixed to the base end part of the band part 121. The band portion 121 is passed through the insulation lock portion 122 after its tip is guided to the electric wire accommodating path 1014 and wound around the outer periphery of the electric wire W. And the band part 121 is locked by the insulation lock part 122 in the position which restrained the electric wire W to the electric wire protective cover 100 firmly. The extra length portion 121A of the band portion 121 from the insulation lock portion 122 is cut (see FIG. 12).

  In assembling the wire protection cover 100 and the restraining band 120 to the connector 110, the wire W is inserted into the wire accommodation path 104 of the wire protection cover 100 from the opening 104a. The connector assembly portion 102 of the wire protection cover 100 that houses the wires W is fitted to the rear surface side of the connector housing 111. Next, the electric wire W in the electric wire accommodation path 104 is restrained to the electric wire protective cover 100 by the restraining band 120. The extra length portion 121A of the band portion 121 is pulled out from the insulation lock portion 122, and the extra length portion 121A of the band portion 121 is cut to complete.

JP-A-63-51518 JP-A-8-182163 JP-A-2005-26048

  However, in the conventional electric wire protection structure, the cut surface 121a of the band portion 121 is exposed as shown in FIG. The edge of the cut surface 121a is sharp. Therefore, the operator after the band cutting work has to work while paying attention to the cut surface 121a of the band part 121, and thus there is a problem that work efficiency is lowered.

  Then, this invention is made | formed in order to solve the above-mentioned subject, and it aims at providing the electric wire protection structure which the working efficiency after the cutting | disconnection of a band part does not fall.

  The present invention is an electric wire protection structure for protecting an electric wire drawn from a connector, the electric wire protection cover assembled to the connector, and an electric wire accommodation path in which the electric wire is accommodated is opened along an electric wire routing direction; A restraint band having a band part that restrains the electric wire to the electric wire protection cover and an insulation lock part that locks the band part at a position where the electric wire is restrained to the electric wire protection cover. The electric wire protection structure is characterized in that a protective wall is provided that covers the cut portion of the band portion that is pulled out of the insulation lock portion and cut.

  The protective wall has a band through hole through which an extra length portion of the band portion pulled out from the insulation lock portion passes, and can be flexibly deformed so that the position of the band through hole can be displaced toward the insulation lock portion. Preferably it is formed.

  According to the present invention, since the cut surface of the band portion is covered by the protective wall of the electric wire protection cover, the subsequent operator does not need to pay attention not to contact the cut surface of the band portion. As described above, the work efficiency after cutting the band portion does not decrease.

1 is a perspective view of a restraint band, an electric wire protection cover, and a connector before assembly according to an embodiment of the present invention. 1 is a cross-sectional view of a restraint band, an electric wire protection cover, and a connector in an assembled state, showing an embodiment of the present invention. 1 is a cross-sectional view of a connector according to an embodiment of the present invention. 1 is a perspective view of a restraint band, an electric wire protection cover, and a connector in an assembled state, showing an embodiment of the present invention. 1 shows an embodiment of the present invention, in which (a) is a front view of a fastening portion of a restraining band, and (b) is a cross-sectional view taken along line AA. It is a perspective view which shows one Embodiment of this invention and shows the state which fixed the restraint band to the electric wire protection cover. 1A and 1B show an embodiment of the present invention, in which FIG. 1A is a cross-sectional view showing a process of cutting a surplus portion of a band part of a restraint band, and FIG. FIG. It is sectional drawing which shows one Embodiment of this invention and cut | disconnects the extra length location of the band part of a restraint band, and shows the state which the protective wall elastically returned. It is a disassembled perspective view of an electric wire protection structure which shows a prior art example. It is sectional drawing of an electric wire protection structure which shows a prior art example. It is sectional drawing of a connector which shows a prior art example. It is a perspective view of the electric wire protection structure which shows a prior art example and shows the state which cut | disconnected the extra length location of the band part. It is a principal part perspective view which shows a prior art example and shows the state in which the cut surface of the band part was exposed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 8 show an embodiment of the present invention. 1 to 5, the connector 10 includes a connector housing 11 and a plurality of terminals 12 accommodated in the connector housing 11. A fitting port 13 of a mating connector (not shown) is opened on the front surface of the connector housing 11. Each terminal 12 is accommodated in the connector housing 11 so as to face the fitting port 13. Each terminal 12 is connected to an end portion of the electric wire W. On the rear surface side of the connector housing 11, the connector assembly portion 3 of the wire protection cover 1 is formed so as to be fitted. Locking claws 14 are provided at a plurality of places at places where the fitting is possible. The plurality of electric wires W are drawn from the rear surface side of the connector housing 11. Restraint tape 15 is wound around and bundled around the plurality of electric wires W drawn from the connector housing 11. For convenience of explanation, a plurality of bundled electric wires W will be simply described as electric wires W below.

  The wire protection structure includes a wire protection cover 1 assembled on the rear surface side of the connector housing 11 and a restraining band 20 that restrains the wire W to the wire protection cover 1.

  The electric wire protection cover 1 includes a cover main body 2 that covers the rear surface of the connector housing 11 and extends in the electric wire routing direction, and a connector assembly portion 3 provided on one end side of the cover main body 2.

  The cover body 2 has a generally semi-cylindrical shape. Inside the cover main body 2, an electric wire accommodating path 4 that opens along the electric wire routing direction is formed. The cover body 2 is provided with a pair of left and right electric wire temporary holding pieces 5.

  The pair of temporary electric wire holding pieces 5 protrudes in the direction of narrowing the opening of the electric wire housing path 4. Thereby, the dimension of the opening part 4a of the electric wire accommodation path 4 is set smaller than the width | variety of the electric wire W accommodated. The pair of temporary electric wire holding pieces 5 is inclined in a direction of entering the inner side of the electric wire accommodating path 4. Therefore, it is set to a position where it gradually enters the inside of the electric wire accommodating path 4 from the root of each electric wire temporary holding piece 5 toward the tip, and the electric wire W is guided to the opening 4 a of the electric wire accommodating path 4.

  The pair of temporary electric wire holding pieces 5 allow the electric wire W to be inserted by bending deformation toward the inner side of the electric wire accommodating path 4 and prevent the electric wire W accommodated in the electric wire accommodating path 4 from moving outward.

  A pair of band locking portions 6A protrude from the cover body 2 on the side opposite to the opening 4a. A pair of band insertion holes 7 are opened on both outer sides of the pair of band locking portions 6A. Each band insertion hole 7 is open to the electric wire accommodation path 4.

  The cover body 2 on the side opposite to the opening 4 a is provided with a protective wall 8 that is pulled out from the below-described insulation lock portion 22 and covers the cut portion of the cut band portion 21. The protective wall 8 has a band through-hole 9 through which an extra length portion 21A (shown in FIGS. 6, 7A, 7B, and 8) of the band portion 21 drawn from the insulation lock portion 22 described below passes. Is formed. The protective wall 8 is formed so as to be able to bend and deform so that the position of the band through hole 9 can be displaced toward the insulation lock portion 22 side.

  The connector assembly 3 is provided with a plurality of locking holes 6.

  The restraining band 20 includes a band-shaped band portion 21 and an insulation lock portion 22 fixed to the base end portion of the band portion 21. The band portion 21 is provided with a locking groove (not shown) continuously along the longitudinal direction. The insulation lock portion 22 has a band insertion hole 22a through which the band portion 21 is passed, and a locking portion (not shown) that is locked in a locking groove of the band portion 21 that is passed through the band insertion hole 22a. The locking portion does not lock in the direction in which the band portion 21 enters the band insertion hole 22a, but locks in the direction in which the band portion 21 is removed from the band insertion hole 22a. The band portion 21 is guided at the tip thereof from the one band insertion hole 7 to the electric wire housing path 4, wound around the outer periphery of the electric wire W in the electric wire housing path 4, and led to the outside from the other band insertion hole 7. After that, it is passed through the band insertion hole 22 a of the insulation lock portion 22. And the band part 21 is locked by the insulation lock part 22 in the position which restrained the electric wire W to the electric wire protective cover 1 firmly. The extra length portion 21A of the band portion 21 from the insulation lock portion 22 is cut.

  Next, the assembly work of the wire protection cover 1 and the restraining band 20 will be briefly described. First, the electric wire W is inserted into the electric wire accommodating path 4 through the opening 4 a between the pair of temporary electric wire holding pieces 5. When the electric wire W is accommodated in the electric wire accommodating path 4, the pair of temporary electric wire holding pieces 5 is restored and deformed to return to the original position, and the electric wire W is temporarily locked. Next, the connector assembly part 3 is aligned and fitted to the rear surface side of the connector housing 11. By this fitting, the plurality of locking holes 6 and the locking claws 14 are locked. This completes the assembly of the wire protection cover 1.

  Next, the electric wire W in the electric wire accommodation path 4 is restrained to the electric wire protective cover 1 by the restraining band 20. Specifically, as shown in FIG. 6, the leading end side of the band portion 21 is guided from one band insertion hole 7 to the electric wire accommodating path 4, and the other end of the electric wire W is wound around the other end of the electric wire accommodating path 4. The band is inserted outside through the band insertion hole 7, passed through the band insertion hole 22 a of the insulation lock portion 22, and the extra length portion 21 A of the band portion 21 drawn out from the insulation lock portion 22 is passed through the band through hole 9 of the protective wall 8. And the band part 21 is locked to the insulation lock part 22 in the position which restrained the electric wire W to the electric wire protective cover 1 firmly.

  Next, as shown in FIG. 7A, an external force F (shown in FIG. 7A) is applied to the protective wall 8 to bend and deform toward the insulation lock portion 22 side, and the band pulled out from the band through hole 9 The extra length portion 21A of the portion 21 is cut (see FIG. 7B). Thereafter, the external force applied to the protective wall 8 is released, and the protective wall 8 is returned to the original state. Thus, as shown in FIG. 8, the cut surface 21 a of the band portion 21 is positioned at a position where it does not protrude at least from the band through hole 9 of the protective wall 8. That is, the cut surface 21 a of the band portion 21 is covered by the protective wall 8.

  Therefore, since the cut surface 21a of the band part 21 is covered with the protective wall 8 of the electric wire protection cover 1, a subsequent operator does not need to pay attention not to contact the cut surface 21a of the band part 21. From the above, the work efficiency after cutting the band portion 21 does not decrease.

  The protective wall 8 has a band through hole 9 through which the extra length portion 21A of the band portion 21 drawn out from the insulation lock portion 22 passes, and is bent so that the position of the band through hole 9 can be displaced toward the insulation lock portion 22 side. It is formed to be deformable. Therefore, since the extra length portion 21A of the band portion 21 can be cut outside the protective wall 8, the cutting workability is good. Moreover, since the cut surface 21a of the band part 21 is automatically covered by the protective wall 8 only by releasing the external force to the protective wall 8 after the cutting operation of the extra length portion 21A of the band part 21, the band part is surely secured. 21 of the cut surface 21 a can be covered with the protective wall 8.

DESCRIPTION OF SYMBOLS 1 Electric wire protective cover 2 Cover main body 4 Electric wire accommodating path 8 Protective wall 9 Band through-hole 10 Connector 20 Restraint band 21 Band part 21A Extra length part 22 Insulok part W Electric wire

Claims (2)

An electric wire protection structure for protecting an electric wire drawn from a connector,
An electric wire protection cover assembled to the connector and having an electric wire accommodating path in which the electric wires are accommodated opened along an electric wire routing direction;
A restraint band having a band portion for restraining the electric wire to the electric wire protection cover, and an insulation lock portion for locking the band portion at a position where the electric wire is restrained to the electric wire protection cover;
An electric wire protection structure, wherein the electric wire protection cover is provided with a protective wall that covers the cut portion of the band portion that is pulled out from the insulation lock portion and cut. The wire protection structure according to claim 1,
The protective wall has a band through hole through which an extra length portion of the band portion pulled out from the insulation lock portion passes, and can be flexibly deformed so that the position of the band through hole can be displaced toward the insulation lock portion. An electric wire protection structure characterized by being formed.

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