JP2010067406A - Wire harness including short circuit, and method of manufacturing the same - Google Patents

Abstract

A wire harness including a short circuit using a joint connector, which is easy to handle and has high connection reliability, and a method capable of manufacturing the wire harness by a simple process.
A wire harness 100 according to the present invention is connected to a main line 12 in which a plurality of electric wires 10 are bundled, a main line tape 18 wound around the main line 12, and a terminal of a branch electric wire 14 of the electric wires 10. A joint connector JC for short-circuiting, and the joint connector JC is disposed on a trunk tape 18 wound around the trunk line 12, and after the trunk cable 18 is placed on the joint connector JC, the joint connector JC is continuous. Then, the joint connector JC is fixed on the main line 12 by being collectively wound around the joint connector JC and the main line 12 in a state where the main line tape 18 is wound around the joint connector JC. It is characterized by being.
[Selection] Figure 4

Description

  The present invention relates to a wire harness that is provided in a vehicle such as an automobile and includes a plurality of electric wires and includes a short circuit that short-circuits the specific electric wires, and a method for manufacturing the wire harness.

Conventionally, as a wire harness including the short circuit as described above, one using a joint connector for short-circuiting the electric wire is known. For example, Patent Literature 1 describes a joint connector that is provided at the end of a branch wire that branches off from a trunk line of a wire harness, and the ends of the branch wire that are short-circuited by the joint connector. More specifically, a main line tape is wound around the electric wire constituting the main line, and the branch electric wire is led out of the main line tape. Then, in a state where a common joint connector is connected to the ends of these branch electric wires, a branch line tape different from the main line tape is also wound around these branch electric wires.
JP 2003-297451 A

  In the wire harness described in Patent Document 1, since the branch wire is further branched from the main wire around which the main wire tape is wound, handling thereof is troublesome. Specifically, it is necessary to wind a tape different from the main line tape around the branch wire, and separate from the main line tape to fix the branch wire along the main line. It is necessary to use a tape or the like.

  In addition, since the branch wire is led out of the main line of the wire harness, care must be taken in handling the wire harness so that the branch wire and the joint connector of the terminal are not caught on other members. However, the trouble becomes more noticeable as the branch wire becomes longer. In particular, when a large tension acts on the branch wire due to the catch or the like, the connection between the branch wire and the joint connector may be disconnected, which may affect the reliability of the connection.

  In view of such circumstances, the present invention provides a wire harness that is easy to handle and has high connection reliability while including a short circuit using a joint connector, and a method by which the wire harness can be manufactured by a simple process. The purpose is to do.

  Therefore, in order to solve the above problems, a wire harness including a short circuit according to the present invention is a trunk line in which a plurality of electric wires are bundled, and is wound around the electric wires constituting the trunk line to maintain the binding state. And a joint connector for short-circuiting these branch wires by being connected to each of the terminals of a plurality of branch wires drawn from the trunk line among the wires included in the trunk line, A joint connector is disposed on the trunk line so as to be placed on the trunk line tape wound around the trunk line, and the main line tape on which the joint connector is placed continuously after the joint connector is placed. The joint connector and the trunk line around which the main line tape is wound are collectively wound around the joint connector The joint connector is characterized in that it is fixed on the main line by the.

  In this wire harness, since the joint connector is fixed on the main line, the bulging length of the branch wire from the main line is reduced. Moreover, since the trunk tape is used for fixing the joint connector, the tape winding operation for manufacturing the wire harness is simplified, and the joint connector is in direct contact with other members. Prevented by tape.

  Further, the joint connector is disposed on the trunk line so as to be placed on the trunk line tape wound around the trunk line, and the trunk line tape on which the joint connector is placed is placed on the joint connector. Since the joint connector is continuously wound around the joint connector and the trunk line around which the main line tape is wound, the contact area between the joint connector and the main line tape is increased. While increasing, the said joint connector is clamp | tightened with the tape for trunk lines, and, thereby, the movement to the circumferential direction of the trunk line of a joint connector is suppressed. That is, the joint connector is tightly wound around the main line by the main line tape while being sandwiched by the main line tape from above and below, so that the friction force when the joint connector moves in the circumferential direction of the main line is large. Thus, movement in the circumferential direction is suppressed. As a result, the joint connector is prevented from moving in the circumferential direction of the main line and coming into contact with other members.

  In the wire harness including the short circuit according to the present invention, the joint connector is wound around the main line tape while being folded so that an intermediate portion of the branch electric wire swells in a direction along the main line from the branch start point. It is preferable that the main line tape is wound around the branch wire and the main line in a lump around the branch line and the main line.

  The intermediate portion that bulges in the direction along the trunk line of the branch wire, that is, the slack portion, prevents a large tension from acting on the connection portion between the branch wire and the joint connector. In addition, since the branch wire is also fixed on the trunk line by the trunk line tape, the bulging length of the branch wire from the trunk line is reduced, and the branch wire is in direct contact with other members. Prevented by tape. Therefore, handling of the wire harness becomes easier.

  The joint connector is made of a single metal plate and includes a plurality of fitting portions that respectively fit with the wire-side terminals provided at the ends of the branch wires, and the branch wires are short-circuited in the fitted state. A short-circuiting metal plate and a plurality of terminal accommodating chambers into which the electric wire side terminals can be inserted in order to be fitted to the fitting portion, and the plurality of terminal accommodating chambers are along the short-circuiting metal plate. An insulating housing that has a flat outer shape in the thickness direction of the short-circuiting metal plate so as to be aligned at a position corresponding to each fitting portion, and holds the short-circuiting metal plate, and the thickness direction of the insulating housing The wall portion that defines each terminal accommodating chamber and the outside on one side of the terminal housing has a portion corresponding to each terminal accommodating chamber than the outer surface of the insulating housing when the electric wire side terminal is inserted into the terminal accommodating chamber. Bend outward and the wire side terminal And a terminal locking portion that locks the wire-side terminal at a position where the wire-side terminal is fitted to the fitting portion is formed and wound around the trunk line. On the main tape, after the wall portion where the terminal locking portion is formed faces the opposite side of the main line and the shorting metal plate is placed in a posture substantially orthogonal to the radial direction of the main line, It is preferable that the main line tape is fixed on the main line by being wound so as to pass through all portions where the plurality of terminal locking portions are formed.

  The terminal locking portion is usually provided in the insulating housing. However, the insulating housing according to the present invention has a flat outer shape in the thickness direction of the short-circuiting metal plate made of a single metal plate in order to reduce the thickness and size of the joint connector. The portion cannot be provided in the insulating housing, and the terminal locking portion is formed on a part of the wall (outer wall) that defines the terminal accommodating chamber and the outside.

  In the joint connector having such an insulating housing, when the wall portion on which the terminal locking portion is formed is fixed on the trunk line in a posture facing the trunk line, the outward bending of the terminal locking portion is the trunk line. The wire-side terminal is prevented from falling off because it is regulated by the peripheral surface of the terminal, but when the wall portion is fixed on the trunk line in a posture facing the trunk line, the terminal locking portion is moved to the outside. The restriction by the peripheral surface of bending is eliminated.

  Even if the joint connector is arranged on the trunk line tape wound around the trunk line in a posture in which the wall part on which the terminal locking part is formed is directed to the opposite side of the trunk line, the terminal locking part does not connect the terminal. Can be locked. All the portions where the plurality of terminal locking portions are formed of the trunk tape that is collectively wound around the joint connector and the trunk in a state where the trunk tape is wound around the joint connector. By being wound so as to pass, the main tape further restricts the bending of all the terminal locking portions outward from the outer surface of the insulating housing. Thereby, the fitting state with the fitting part of an electric wire side terminal is maintained, and the drop-off | omission from the joint connector of an electric wire side terminal is prevented more reliably.

  Also, the wire side terminals of the terminals of the branch wires are respectively inserted into the terminal housing chambers of the insulating housing and are fitted into the fitting portions of the shorting conductors, so that the electric wire side terminals using the shorting conductors as a medium Can be short-circuited. In addition, since the metal plate for short-circuiting the joint connector is fixed on the trunk line in a posture substantially orthogonal to the radial direction of the trunk line, the projecting dimension of the joint connector from the trunk line can be kept small, and the entire wire harness can be further reduced. Thinning can be promoted.

  Moreover, in order to eliminate the said subject, this invention is a method for manufacturing the wire harness containing a short circuit, Comprising: The process of forming a trunk line by bundling a some electric wire, and the electric wire contained in the said trunk line A specific plurality of electric wires are drawn out as branch wires, a step of short-circuiting the branch wires by connecting a joint connector to the ends of these branch wires, and a main line tape around the wires constituting the main line Winding and holding the bundling state, and at the position where the joint connector is disposed, the main line tape is wound around the main line, and the joint connector is continuously placed on the wound main line tape. Then, the main line tape is bundled around the joint connector and the main line in a state where the main line tape is wound around the joint connector. The joint connector by winding Te is characterized by comprising a step of fixing onto the trunk.

  In this method, winding of the main line tape around the main line of the wire harness and fixing of the joint connector to the main line are efficiently performed collectively. Moreover, when fixing the joint connector on the main line, the main line tape is wound around the main line, and after the joint connector is placed on the wound main line tape, the joint connector and its A wire in which the joint connector fixed on the main line is difficult to move in the circumferential direction of the main line by an easy operation such as winding the main line tape around the main line around which the main line tape is wound. Harness can be obtained.

  As described above, according to the present invention, a tape is wound around the joint connector while continuously constructing a short circuit with the branch wires and the joint connector, and then the trunk tape is continuously wound around the joint connector and the trunk line. By winding, a wire harness that is easy to handle and has high connection reliability can be provided, and a method by which the wire harness can be manufactured by a simple process can be provided.

  A preferred embodiment of the present invention will be described with reference to the drawings.

  1 to 4 show a process for manufacturing the wire harness 100 according to this embodiment. The wire harness 100 includes a trunk line 12 in which a plurality of electric wires 10 are bundled, a trunk tape 18 wound around the trunk line 12 in order to maintain the bundled state, and a joint connector JC. As shown in FIG. 1, a plurality of electric wires 10 among the electric wires 10 constituting the main wire 12 are drawn out from the main wire 12 as branch wires 14, and the joint connector JC is connected to the ends of these branch wires 14. The branch wires 14 are short-circuited. Further, the joint connector JC and the branch wire 14 are fixed on the main line 12 as shown in FIGS. 2 to 4 by using the main line tape 18.

  Specifically, the wire harness 100 according to this embodiment is manufactured by the following procedure.

1) Wiring of electric wires 10 A plurality of electric wires 10 are bundled to form a trunk line 12, and a plurality of electric wires 10 (four in this embodiment) are used as branch wires 14. Drawn from 12; For each electric wire 10, a so-called covered electric wire is used, and the electric wire 10 has a conductor and an insulating coating that covers the conductor.

  In this embodiment, in order to connect each branch wire 14 to the common joint connector JC, a wire-side terminal 20 as shown in FIGS. 5 and 6 is attached in advance to the end of each branch wire 14. . The electric wire side terminal 20 has a female electrical contact portion 22 and an electric wire crimping portion 24 at the front and rear. The electrical contact portion 22 has a hollow rectangular tube-shaped main body and a contact spring piece 26 provided so as to be able to bend in the main body. From the bottom wall of the electrical contact portion 22, a locked piece 28 for locking to the joint connector JC protrudes outward.

  The terminal of each branch electric wire 14 is previously subjected to a treatment for removing the insulating coating and exposing the conductor, and the electric wire crimping portion 24 embraces the terminal of the conductor and the insulating coating in the vicinity thereof. By being bent, it is crimped to the end of the branch wire 14 and is electrically connected to the conductor.

2) Connection to the joint connector JC By connecting the electric wire side terminals 20 attached to the branch electric wires 14 to the joint connector JC as shown in FIGS. 5 to 8, the electric wire side terminals 20 are short-circuited. Is done.

  The joint connector JC according to this embodiment includes a single short-circuit conductor 30 and an insulating housing 40 for holding the short-circuit conductor 30. The short-circuiting conductor 30 is made of a conductive material, and is short-circuited between the electric wire side terminals 20 by being commonly connected to the electric wire side terminals 20. The insulating housing 40 is integrally formed of an insulating material such as a synthetic resin, and can be held in a state where the shorting conductor 30 is stored. Specifically, the insulating housing 40 is flat in the thickness direction of the shorting conductor 30. Have a different shape.

  The short-circuiting conductor 30 according to this embodiment is formed of a short-circuiting metal plate formed by punching a single metal plate into an appropriate shape, and a plurality of electrical contact portions 32 and the short-circuiting portion 34 are integrated. Have. Each electric contact portion 32 is a male (tab) fitting portion that can be fitted into the female electric contact portion 22 of each electric wire side terminal 20, and these electric contact portions 32 are parallel to the width direction thereof. Is arranged. The short-circuit portion 34 extends in the arrangement direction of the electrical contact portions 32, and the proximal end of each electrical contact portion 32 is connected to the short-circuit portion 34.

  The insulating housing 40 includes a pair of side walls 44 that connect the flat top wall 41 and the bottom wall 42 that are parallel to each other, and both end portions in the width direction of the walls 41 and 42 (that is, the left end portions and the right end portions). And integrally. These walls 41, 42, 44 constitute the outer wall of the insulating housing 40.

  The rear end portion (the right end portion in FIGS. 5 to 8) of the outer wall constitutes a conductor holding portion 43. The short-circuiting portion 34 of the short-circuiting conductor 30 is press-fitted into the conductor holding portion 43 from the opening 43 a provided at the rear end of the insulating housing 40, whereby the short-circuiting portion 34 is held by the conductor holding portion 43. .

  The conductor holding portion 43 has a shape that holds the short-circuit portion 34 of the short-circuiting conductor 30. Specifically, the short circuit 34 has an outer shape that is slightly larger than the short circuit part 34 and extends in the arrangement direction of the electrical contact parts 32 of the short circuit conductor 30, and the short circuit part 34 can be inserted from the rear (right side in FIG. 5). The metal plate insertion opening 43a is enclosed. The short-circuit portion 34 is press-fitted into the conductor holding portion 43 from the insertion port 43a in a posture in which each electrical contact portion 32 faces forward. More specifically, protrusions 34 a as shown in FIG. 7 are formed at both ends in the width direction of the short-circuit portion 34, and these protrusions 34 a bit into the inner surface of the conductor holding portion 43 to short-circuit the conductor holding portion 43. The part 34 is fixed.

  A plurality (three in the figure) of partition walls 45 parallel to the side walls 44 are arranged in the connector width direction at a portion in front of the conductor holding portion 43. Each partition wall 45 defines a terminal accommodating chamber 47 between another partition wall 45 or the side wall 44 adjacent to the partition wall 45. Each terminal accommodating chamber 47 has a shape that opens forward and allows the electric wire side terminal 20 to be inserted through the opening. Each electrical contact portion 32 of the short-circuiting conductor 30 protrudes from the rear in each terminal accommodating chamber 47, and the electrical contact portion 22 of the electric wire side terminal 20 inserted into the terminal accommodating chamber 47 is connected to the electrical contact portion 32. The electric wire side terminal 20 and the short-circuiting conductor 30 are electrically connected by fitting.

  Lances (terminal locking portions) 46 are formed on the bottom wall 42 at positions corresponding to the respective terminal accommodating chambers 47. Each lance 46 is surrounded by a substantially U-shaped slit 42 a (see FIG. 8) formed in the bottom wall 42, and can be bent and deformed in the thickness direction with respect to the main body of the bottom wall 42. A free end portion is provided, and a claw-like locking portion 46a is formed at the free end portion. The locking portion 46a is deformed by contact with the inserted wire side terminal 20 as shown in FIG. 5 to allow passage of the wire side terminal 20, and after that passage, elastically moves to a proper position. By returning, the locked piece 28 of the electric wire side terminal 20 is restrained from the rear (see FIG. 6). That is, the electric wire side terminal 20 is locked at a position where the electric wire side terminal 20 is fitted to the electric contact portion 32.

  Accordingly, in the joint connector JC, the terminal 20 of each branch wire 14 is inserted into the terminal accommodating chamber 47 and fitted into the electrical contact portion 32 of the short-circuiting conductor 30, so A short circuit between the electric wire side terminals 20 using the conductor 30 as a medium is achieved.

3) Tape winding operation and installation of joint connector JC The main line tape 18 is spirally wound around the electric wires 10 constituting the main line 12 so as to maintain the bundled state. This winding may be performed so as to cover the entire surface of the main line 12 as shown in FIGS. 2 and 3, or may be performed with a gap where a part of the main line 12 is exposed.

  When the winding of the main wire tape 18 reaches the position where the joint connector JC is disposed, the joint connector JC to which the branch wires 14 are connected as described above winds the main wire tape 18 so that the branch wires 14 are folded. Installed on the trunk line 12. Specifically, in this embodiment, as shown in FIG. 2, when the winding of the trunk wire 18 reaches the branch start point 15 of the branch wire 14, the intermediate portion 16 of each branch wire 14 extends along the trunk line 12. The joint connector JC is disposed in the vicinity of the branch start point 15 of the branch wire 14 at the position where the main line tape 18 has already been wound while being folded so as to bulge in the direction. At this time, the joint connector JC is disposed in such a posture that the bottom wall 42 of the insulating housing 40 in which the lance 46 is formed faces the opposite side to the main line 12.

  The length of the slack portion of the branch wire 14 folded in this way is shorter than the length of the original branch wire 14 (about half in this embodiment). The operation of winding the tape 18 is easy. Further, the branch wire 14 folded as described above is housed in a compact manner, and the slack given to the branch wire 14 due to the folding causes a large tension at the connection portion between the branch wire 14 and the joint connector JC. Prevent it from acting.

  The joint connector JC may be disposed such that the bottom wall 42 of the insulating housing 40 faces the main line 12 side. When arranged in this way and fixed on the main line 12, the outward bending of the lance 46 is restricted by the peripheral surface of the main line 12, and thus the electric wire side terminal 20 is prevented from falling off. In addition, the joint connector JC may be disposed, for example, simply by pressing the joint connector JC with a finger or the like until the next tape winding operation, or the joint connector JC using an adhesive tape or the like. Temporary fixing may be performed. Further, the joint connector JC may be arranged such that a part of the joint connector JC protrudes from the main line tape 18 (see FIG. 2).

  When the joint connector JC is placed on the main line tape 18 as described above, as shown in FIG. 3, the main line tape 18 on which the joint connector JC is placed continues after the joint connector JC is placed. Then, the joint connector JC and the trunk line 12 in a state where the trunk line tape 18 is wound around the joint connector JC are collectively wound around the circumference. As a result, the joint connector JC using the main line tape 18 is efficiently fixed.

  At this time, the main line tape 18 is wound in a lump so as to pass over all the lances 46 formed on the bottom wall 42 of the insulating housing 40 in the joint connector JC. By being wound in this way, the mainline tape 18 regulates the outward bending of all the lances 46 from the bottom wall 42. Thereby, the fitting state with the electric contact part 32 of the electric wire side terminal 20 is maintained, and the drop-off | omission from the joint connector JC of the electric wire side terminal 20 is prevented.

  Specifically, in a conventional joint connector (not shown), the lance is usually provided inside the insulating housing. However, the insulating housing 40 according to this embodiment has a flat outer shape in the thickness direction of the short-circuiting conductor 30 made of a single metal plate in order to reduce the thickness and size of the joint connector JC. The lance 46 cannot be provided in the insulating housing 40, and the lance 46 is formed on the bottom wall 42. In the joint connector JC having such an insulating housing 40, when the bottom wall 42 on which the lance 46 is formed is fixed on the trunk line 12 in a posture facing the trunk line 12, the outer side of the lance 46 is moved to the outside as described above. Is restrained by the peripheral surface of the trunk line 12 to prevent the electric wire side terminal 20 from falling off. However, when the bottom wall 42 is fixed on the trunk line 12 with the posture facing the opposite side to the trunk line 12, The restriction by the peripheral surface of the outward bending is eliminated.

  However, even if the insulating housing 40 of the joint connector JC is disposed on the trunk line 12 with the bottom wall 42 on which the lance 46 is formed facing the opposite side to the trunk line 12 as in this embodiment, the joint connector JC And the trunk line tape 18 wound around the trunk line 12 in a state where the trunk line tape 18 is wound around the trunk line 18 is wound around the plurality of lances 46. Thus, the mainline tape 18 restricts the bending of all the lances 46 outward from the bottom wall 42.

  The joint connector JC and the branch wire 14 fixed to the trunk line 12 as described above are covered from the outside by the trunk line tape 18 and direct contact between these and other members is prevented. The handling of the wire harness 100 becomes easy.

  In addition, the joint connector JC is disposed on the trunk line 12 so as to be placed on the trunk line tape 18 wound around the trunk line 12, and the trunk line tape 18 on which the joint connector JC is placed attaches the joint connector JC. Since the joint connector JC and the trunk line 12 in a state where the trunk line tape 18 is wound around the joint connector JC are continuously wound around the joint connector JC and the trunk line, the joint connector JC and the trunk line are continuously wound around the circumference. The contact area with the tape 18 increases, and the joint connector JC is tightened by the trunk tape 18, thereby suppressing the movement of the joint connector JC in the circumferential direction of the trunk line 12. That is, when the joint connector JC is sandwiched between the main line tapes 18 from above and below, the main line tape 18 is firmly wound, and the joint connector JC is firmly tightened to the main line 12 so that the joint connector JC The frictional force when the main line 12 is moved in the circumferential direction is increased, thereby suppressing the movement in the circumferential direction. As a result, the joint connector JC is prevented from moving in the circumferential direction of the main line 12 and coming into contact with other members.

  For example, as shown in FIG. 9, when the trunk tape 18 is simply wrapped around the joint connector JC and the trunk line 12 around the joint connector JC, it is difficult to tightly wind the trunk tape 18. The joint connector JC is easily displaced in the circumferential direction with respect to the main line 12. Specifically, when the main line tape 18 is collectively wound around the joint connector JC and the main line 12 and a force is applied to the main line 12, the plurality of electric wires 10 constituting the main line 12 are respectively Since the shape of the trunk line 12 (shape along the cross section) tends to become unstable due to movement, it is difficult to firmly tighten the joint connector JC to the trunk line 12. Then, the joint connector JC is displaced in the circumferential direction of the main line 12 due to the vibration of the vehicle, etc., and this displacement may cause the joint connector JC to contact another member 52 on the body side and cause abnormal noise.

  On the other hand, in this embodiment shown in FIG. 4, since the trunk line tape 18 is first wound around the trunk line 12 where the joint connector JC is disposed, the trunk line 12 which is a bundle of a plurality of electric wires 10 is the trunk line. The movement of each electric wire 10 is restrained by being tightened by the tape 18 for use, whereby the shape of the trunk line 12 is stabilized. Therefore, the joint connector JC is disposed on the main line 12 in this state, and the shape of the main line 12 is stable when the main line tape 18 is collectively wound so as to straddle the joint connector JC and the main line 12. Therefore, the main line tape 18 can be tightly wound. As a result, the joint connector JC is securely fastened to the main line 12 by the main line tape 18. In addition, since the joint connector JC having the flat outer shape as described above is sandwiched between the top wall 41 side and the bottom wall 42 side by the main line tape 18, the contact area between the joint connector JC and the main line tape 18 is maintained. Becomes larger. As a result, the frictional force at the contact portion when the joint connector JC is about to move in the circumferential direction of the trunk line 12 is large enough to suppress the movement of the joint connector JC in the circumferential direction. Therefore, when the trunk line 12 of such a wire harness 100 is routed on the surface of the vehicle body 50 as shown in FIG. 10, the joint connector JC is displaced in the circumferential direction of the trunk line 12 due to the vibration of the vehicle or the like. Even so, the main line tape 18 suppresses the shift, or suppresses the shift to a slight shift, thereby preventing the joint connector JC from coming into contact with the other member 52.

  In the present invention, the specific shape and structure of the joint connector JC are not limited. However, the width dimension of the joint connector JC is preferably 0.8 times or less the diameter of the trunk line 12. Such a width dimension is a problem caused by the stable fixation of the joint connector JC on the main line 12 and the joint connector JC projecting from the main line 12 in the width direction so that the joint connector JC contacts other members. It is possible to achieve both of avoidance of the above.

  Further, if the outer shape of the joint connector JC is a flat shape as shown in the figure, the joint connector JC is fixed on the trunk line 12 in a posture in which the shorting conductor 30 is substantially orthogonal to the radial direction of the trunk line 12. The projecting dimension of the joint connector JC from the main line 12 is effectively suppressed. This reduction in the amount of protrusion contributes to the thinning of the entire wire harness 100.

It is a perspective view which shows the state in which the common joint connector was connected to the terminal of several branch electric wires in the manufacture process of the wire harness which concerns on this embodiment. It is a perspective view which shows the state which wound the tape for trunk lines in the arrangement | positioning position of the joint connector in the said trunk line. It is a perspective view which shows the state by which the said joint connector was fixed on the trunk line using the tape for trunk lines. It is a transverse cross section showing the state where the joint connector was fixed on the main line using the main line tape. It is a cross-sectional side view which shows the state in the middle of the wire side terminal with which the terminal of the said branch wire was mounted | worn being inserted in the said joint connector. It is a cross-sectional side view which shows the state by which the electric wire side terminal with which the terminal of the said branch electric wire was mounted | worn was completely inserted in the said joint connector. It is a cross-sectional plan view of the joint connector. It is a bottom view of the joint connector. It is a figure which shows the state which wound the tape for trunk lines collectively with the said joint connector and the trunk line. After placing the joint connector on the wound trunk line tape, the trunk line tape is continuously bundled around the joint connector and the trunk line around which the trunk line tape is wound. It is a figure which shows the wound state.

Explanation of symbols

10 Electric Wire 12 Main Line 14 Branch Electric Wire 18 Main Line Tape 100 Wire Harness JC Joint Connector

Claims (4)

A wire harness including a short circuit,
A trunk line in which a plurality of electric wires are bundled,
A main line tape that is wound around the electric wire constituting the main line and maintains its bundling state;
A joint connector that short-circuits these branch wires to each other by being connected to each of the terminals of the plurality of branch wires drawn from the trunk line among the wires included in the trunk line,
The joint connector is arranged on the trunk line so as to be placed on the trunk line tape wound around the trunk line, and the trunk line tape on which the joint connector is placed is continuously placed after the joint connector is placed. The joint connector is fixed on the trunk line by being collectively wound around the joint connector and the trunk line around which the trunk tape is wound. A wire harness including a short circuit characterized. In the wire harness including the short circuit according to claim 1,
The joint connector is disposed on a trunk line wound with the trunk tape while being folded so that an intermediate portion of the branch wire bulges in a direction along the trunk line from the branch start point,
A wire harness including a short circuit, wherein the main line tape is wound around the branch wire and the main line in a lump. In the wire harness including the short circuit according to claim 1 or 2,
The joint connector is made of a single metal plate and includes a plurality of fitting portions that respectively fit with the wire-side terminals provided at the ends of the branch wires, and the branch wires are short-circuited in the fitted state. A metal plate for short circuit,
A plurality of terminal accommodating chambers having shapes into which the electric wire side terminals can be inserted in order to be fitted to the fitting portions, and the plurality of terminal accommodating chambers correspond to the respective fitting portions along the short-circuit metal plate. An insulating housing that has a flat outer shape in the thickness direction of the short-circuiting metal plate so as to be arranged in a position to hold the short-circuiting metal plate,
When the electric wire side terminal is inserted into the terminal accommodating chamber in a portion corresponding to each terminal accommodating chamber, the wall portion defining the terminal accommodating chamber and the outside on one side in the thickness direction of the insulating housing A terminal that bends outward from the outer surface of the insulating housing to allow passage of the electric wire side terminal, returns to a normal position after the passage, and locks the electric wire side terminal at a position where the electric wire side terminal is fitted to the fitting portion A locking part is formed,
On the main line tape wound around the main line, the wall portion on which the terminal locking portion is formed faces the opposite side of the main line, and the short-circuit metal plate is substantially in the radial direction of the main line. After being placed in an orthogonal posture, the trunk line tape is fixed on the trunk line by being wound so as to pass through all the portions where the plurality of terminal locking portions are formed. Including wire harness. A method for manufacturing a wire harness including a short circuit,
Forming a trunk line by bundling a plurality of electric wires;
Pulling out a plurality of specific wires among the wires included in the trunk line as branch wires, and short-circuiting the branch wires by connecting a joint connector to the end of these branch wires,
The main line tape is wound around the electric wire constituting the main line to maintain the bundling state, and the main line tape is wound around the main line at the position where the joint connector is disposed. After the joint connector is placed on the trunk tape, the trunk tape is continuously wound around the joint connector and the trunk line around which the trunk tape is wound. Attaching the joint connector on the trunk line by attaching,
The manufacturing method of the wire harness containing the short circuit characterized by including this.

Images