JP2010067457A - Wire harness containing short circuit, and method for manufacturing the same - Google Patents

Abstract

An object of the present invention is to provide 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 capable of manufacturing the wire harness by a simple process.
A wire harness 100 according to the present invention is connected to a trunk line 12 in which a plurality of electric wires 10 are bundled and a terminal of a branch electric wire 14 of the electric wires 10, and is a joint connector JC installed on the trunk line 12. Are wound around the plurality of electric wires 10 to maintain their bundling state, and at the position where the joint connector JC of the main line 12 is installed, it is collectively wound around the joint connector JC and the main line 12 The first main line tape 18 is provided, and the second main line tape 19 is further wound from the outside of the first main line tape 18 in the installation area of the joint connector JC of the main line 12.
[Selection] Figure 5

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 includes a trunk line in which a plurality of wires are bundled, and a plurality of branch wires drawn from the trunk line among the wires included in the trunk line. These branch wires are short-circuited to each other by being connected to each of the terminals, and are held around the joint connector disposed on the trunk line and wound around the wires constituting the trunk line. And at the installation position of the joint connector of the main line, in the installation area of the first main line tape that is collectively wound around the joint connector and the main line, and in the installation area of the joint connector of the main line In order to reinforce the fastening of the joint connector to the main line by the first main line tape, the first main trunk in the region is used. Characterized in that it comprises a second trunk tape to be attached further wound from the outside of the use tape.

  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, the first and second main line tapes prevent the joint connector from coming into direct contact with other members.

  Specifically, the first mainline tape is used for both holding the bundled wires constituting the mainline and fixing the joint connector on the mainline, thereby simplifying the structure of the wire harness and the manufacturing process. On the other hand, the joint connector is easily displaced in the circumferential direction with respect to the main line inside the wound main line tape, but in the present invention, in addition to the first main line tape, The second main line tape is wound from the outside of the first main line tape in the installation area of the main line joint connector, so that the joint is fastened to the main line by the first main line tape. In addition, it is further tightened by the second main line tape, whereby the movement of the joint connector in the circumferential direction of the main line is suppressed.

  Furthermore, since the wire harness simply wraps the first and second trunk tapes, the branch wire tape is wound around the branch wires separately from the trunk wire tape as in the prior art. There is almost no bulk.

  The second main tape is preferably different in color from the first main tape. Thus, even if the joint connector is entirely covered by the wound first or second trunk tape, the second trunk tape having a different color from that of the first trunk tape is used. The arrangement position of the joint connector in the wire harness can be easily grasped visually.

  In the wire harness including the short circuit according to the present invention, the joint connector is installed on the trunk line 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, It is preferable that the first main line tape is wound around the branch electric wire and the main line in a lump.

  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. Further, since the branch wire is also fixed on the main line by the first main line tape, the bulge length of the branch wire from the main line is reduced, and the branch wire may be in direct contact with other members. This is prevented by the first trunk 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 the terminal locking part is formed to return to the normal position after passing through and to lock the electric wire side terminal at the position where the electric wire side terminal is fitted to the fitting part, and the terminal locking part is formed. The wall portion faces the side opposite to the main line, and the short-circuit metal plate is installed on the main line in a posture substantially orthogonal to the radial direction of the main line, and the first main line tape and the second main line tape It is preferable that the main line tape is wound around each of the portions where the plurality of terminal locking portions are formed.

  The terminal locking portion is usually formed in the insulating housing. In the present invention, by forming the terminal locking portion on the outer wall, the outer shape of the insulating housing can be made flat and thin, and the amount of protrusion from the wire harness can be reduced.

  In addition, by using the first main line tape and the second main line tape to restrict the outward bending of the terminal locking portion, the locked state is further ensured. That is, the terminal locking portion can lock each electric wire side terminal even if the outward bending is not restricted by the trunk tape, but the first trunk tape and the second trunk tape By using this, the fitting state of each wire side terminal with the fitting portion is more reliably maintained, and the dropout of the wire side terminal from the joint connector is surely prevented.

  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 Pulling out a specific plurality of electric wires as branch wires, connecting the joint connectors to the ends of these branch wires, shorting the branch wires together, and installing the joint connector on the main line, The first main line tape is wound around the electric wire constituting the main line to maintain the bundling state, and the joint connector is installed at the position around the joint connector and the main line. A step of collectively winding one main tape, and a step of installing the first main line tape in the joint connector installation region of the main line. In order to reinforce the tightening of the joint connector to the main line by the cable, the joint connector is placed on the main line by further winding a second main line tape from the outside of the first main line tape in the region. And a fixing step.

  In this method, the winding of the first main line tape around the main line of the wire harness and the fixing of the joint connector to the main line with the first main line tape are efficiently performed collectively and on the main line. The winding of the second main line tape for suppressing the displacement of the fixed joint connector in the circumferential direction of the main line is also performed on the outside of the first main line tape already wound around the joint connector position. It is carried out by an easy winding operation that only requires winding.

  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 5 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 joint connector JC installed on the trunk line, and a binding state of the plurality of electric wires 10 and a joint connector JC fixed on the trunk line 12. In order to suppress the positional deviation of the joint connector JC on the main line 12 by reinforcing the first main line tape 18 wound around the main line 12 and the winding of the first main line tape 18. The second mainline tape 19 is included. 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. Then, as shown in FIGS. 2 to 5, the first main line tape 18 is collectively wound around the joint connector JC, the branch wire 14 and the main line 12, so that the joint connector JC And the branch wire 14 are both fixed on the main line 12. Further, the second main line tape 19 is further wound from the outside of the first main line tape 18 around the joint connector JC and the main line 12 fixed by the winding of the first main line tape 18. As a result, the displacement of the joint connector JC fixed on the trunk line 12 with respect to the trunk line 12 is suppressed.

  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 branching wires 14. It is drawn from the main line 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. 6 and 7 is attached to the end of each branch wire 14 in advance. . 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 wire side terminals 20 attached to each branch wire 14 to the joint connector JC as shown in FIGS. 6 to 9, the 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 9) 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. 6). 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. 8 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. 9) 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. This locking portion 46a is bent and deformed as shown in FIG. 6 by coming into contact with the inserted electric wire side terminal 20 to allow the electric wire side terminal 20 to pass through, and after that passage, it 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. 7). 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) Installation of joint connector JC The joint connector JC to which the branch wires 14 are connected as described above is installed on the trunk line 12 so that the branch wires 14 are folded. Specifically, in this embodiment, the joint connector JC is folded so that the intermediate portion 16 of each branch wire 14 bulges in a direction along the trunk line 12, and the joint connector JC has a branch start point 15 (see FIG. 1). ). 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 side opposite to the main line 12.

  This installation may be performed just before the next tape winding operation, for example, and the operator may simply press the joint connector JC with a finger or the like, or the joint connector JC may be temporarily fixed with an adhesive tape or the like. It may be broken.

  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 work of winding the main line tape 18 is easy.

  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.

4) Tape winding work The first 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 FIG. 2, or may be performed with a gap where a part of the main line 12 is exposed.

  As shown in FIGS. 2 and 3, the joint connector JC is installed around the joint connector JC, the branch wire 14 connected to the joint connector JC, and the trunk line 12. The trunk line tape 18 is wound. At this time, the first main line tape 18 is wound 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.

  As described above, the first trunk tape 18 can be used to efficiently hold the bundled state on the trunk line 12 and fix the joint connector JC on the trunk line 12. However, since the first main line tape 18 is comprehensively wound over the main line 12 and the joint connector JC, the joint connector JC is connected to the main line 12 inside the first main line tape 18. It becomes easy to shift in the circumferential direction.

  Therefore, with respect to the joint connector JC and the trunk line 12 in a state where the first trunk tape 18 is wound as described above, the joint connector JC and the trunk line 12 are connected as shown in FIGS. A second main line tape 19 is further wound from the outside of the first main line tape 18 wound around the periphery. The second main line tape 18 is wound only on the installation site of the joint connector JC on the main line 12. That is, in order to reinforce the tightening of the joint connector JC to the main line 12 by the first main line tape at the installation site of the main line joint connector, the second main line use from the outside of the first main line tape 18 at that position. Tape 19 is wound.

  As described above, the joint connector JC using the main line tapes 18 and 19 can be efficiently fixed by an easy winding operation in which only the second main line tape 19 is wound from the outside of the first main line tape 18. Is called. In addition, as described above, the second main line tape 19 is wound only on the joint connector JC installation site, thereby reducing the amount of use of the second main line tape 19 and the work time of the tape winding work. It is possible to effectively suppress the displacement of the joint connector JC with respect to the main line 12 while shortening.

  In this embodiment, the second main line tape 19 is a main line tape having a color different from that of the first main line tape 18 (for example, the second main line tape 19 is red and the first main line tape 19 is red. The main line tape 18 is green). By using the first main line tape 18 and the second main line tape 19 having different colors as described above, the joint connector JC is entirely covered with the first and second main line tapes 18 and 19. Even if it is, the arrangement position of the joint connector JC in the wire harness 100 can be easily grasped visually.

  However, the present invention is not limited to this, and the first main line tape 18 and the second main line tape 19 may be the same color. In this case, the first winding operation for winding the first trunk line tape 18 around the trunk line 12 and the joint connector JC disposed on the trunk line 12 in a lump, and the first winding Since the work for winding the second main line tape 19 can be further performed by the common main line tape in order to suppress the displacement of the joint connector JC from the state, the wire harness 100 is manufactured by a simpler process. It becomes possible.

  The second main line tape 19 is wound from the outside of the first main line tape 18 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. Here, as described above, the first trunk tape 18 is also wound so as to pass over all the lances 46. Accordingly, the first main line tape 18 and the second main line tape 19 are respectively wound around the joint connector JC so as to pass through all portions where the plurality of lances 46 are formed. By being wound in this manner, the first and second main tapes 18 and 19 reliably restrict 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. In this embodiment, by forming the lance 46 on the bottom wall 42, the outer shape of the insulating housing 40 can be made flat and thin, and the amount of protrusion from the wire harness 100 can be reduced.

  In addition, by using the first main line tape 18 and the second main line tape 19 to restrict the deflection of the lance 46 to the outside of the bottom wall 42, the locked state can be made more reliable. Thereby, the fitting state with the electric contact part 32 of each electric wire side terminal 20 is maintained. That is, the lance 46 can lock each electric wire side terminal 20 even if the outward bending is not restricted by the first main line tape 18 and the second main line tape 19. By using the main wire tape 18 and the second main wire tape 19, the fitting state of the electric wire side terminals 20 with the electric contact portions 32 can be more reliably maintained, and the joint connector JC of the electric wire side terminals 20 can be maintained. Prevents falling out of the unit.

  If one of the first main line tape 18 or the second main line tape 19 (preferably the first main line tape 18) is wound so as to pass over all the lances 46, each electric wire side The fitting state of the terminal 20 with the electrical contact portion 32 is maintained, and the dropout of the wire side terminal 20 from the joint connector JC is prevented.

  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 first and second trunk line tapes 18 and 19 and are directly connected to other members. Therefore, handling of the wire harness 100 is facilitated. In particular, since the joint connector JC is in a state of being covered with the second main line tape 19 from the outside of the first main line tape 18, direct contact with other members is prevented.

  In addition, the first main line tape 18 is wound around the joint connector JC and the main line 12 around the joint connector JC, and the first main line tape 18 is disposed at the joint connector JC of the main line 12. When the second main line tape 19 is further wound from the outside, the joint connector JC is tightened by the first main line tape 18 with respect to the main line 12 and further tightened by the second main line tape 19. Thus, the movement of the joint connector JC in the circumferential direction with respect to the main line 12 is suppressed. Therefore, 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, in the state where the trunk line 12 of the wire harness 100 is routed on the surface of the vehicle body 50 as shown in FIG. 10 (a), the joint connector is simply not wrapped around the second trunk line tape 19. In the case of the wire harness 100 in which the joint connector JC is fixed on the trunk line 12 by wrapping the first trunk line tape 18 around the JC and the trunk line 12 in a lump around the joint, The connector JC is displaced in the circumferential direction with respect to the main line 12, and this displacement may cause the joint connector JC to come into contact with the other member 52 on the body side and cause noise or the like. That is, in such a winding method, the first main line tape 18 is used for both holding the bundled state of the electric wires 10 constituting the main line 12 and fixing the joint connector JC on the main line 12. This contributes to the simplification of the structure and manufacturing process of the wire harness 100, but on the other hand, the joint connector JC is easily displaced in the circumferential direction with respect to the main line 12 inside the wound first main line tape 18. is there.

  However, as in this embodiment shown in FIG. 5B, the first main line tape 18 is wound around the joint connector JC and the main line 12 all around the joint connector JC, and in this state, the joint connector The second main line tape 19 is further wound around the JC and the main line 12 from the outside of the first main line tape 18 so that the joint connector JC is displaced in the circumferential direction of the main line 12 as described above. However, the first main line tape 18 wound around the periphery thereof and the second main line tape 19 wound around the outside thereof are firmly tightened, so that the shift is suppressed, or It is possible to prevent 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 1st trunk lines around the arrangement | positioning position of the joint connector in the said trunk line. It is a perspective view which shows the state which has arrange | positioned the 2nd trunk line tape on the outer side of the 1st trunk line tape wound around 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 1st and 2nd trunk line tape. It is a transverse cross section showing the state where the joint connector was fixed on the main line using the 1st and 2nd main line tapes. 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. (A) is a figure which shows the state which wound the said joint connector and the trunk line collectively, and wound the 1st trunk line tape only, (b) was wound around the said joint connector and the trunk line collectively. It is a figure which shows the state by which the 2nd trunk line tape was further wound around the outer side of the 1st trunk line tape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electric wire 12 Main line 14 Branch electric wire 18 1st main line tape 19 2nd main line tape 100 Wire harness JC Joint connector

Claims (5)

A wire harness including a short circuit,
A trunk line in which a plurality of electric wires are bundled,
Among the electric wires included in the main line, these branch electric wires are mutually short-circuited by being connected to each of the terminals of a plurality of branch electric wires drawn out from the main line, and a joint connector disposed on the main line,
It is wound around the electric wire constituting the trunk line to maintain its bundling state, and at the installation position of the joint connector of the trunk line, it is wound around the joint connector and the trunk line in a lump. 1 trunk tape,
In order to reinforce the fastening of the joint connector to the main line by the first main tape in the installation area of the joint connector of the main line, the main cable is further wound from the outside of the first main line tape in the area. A wire harness including a short circuit, comprising: a second main line tape. In the wire harness including the short circuit according to claim 1,
The wire harness including a short circuit, wherein the second main tape is different in color from the first main tape. In the wire harness including the short circuit according to claim 1 or 2,
The joint connector is installed on the trunk line while being folded so that the middle part of the branch wire bulges in the direction along the trunk line from the branch start point,
A wire harness including a short circuit, wherein the first main line tape is wound around the branch electric wire and the main line in a lump. In the wire harness including the short circuit according to any one of claims 1 to 3,
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 line up at a position corresponding to each fitting portion, and holds 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 portion is formed, the wall portion on which the terminal locking portion is formed faces the opposite side of the trunk line, and the short-circuit metal plate is on the trunk line in a posture substantially orthogonal to the radial direction of the trunk line. Installed in
The first main line tape and the second main line tape are wound so as to pass through all the portions where the plurality of terminal locking portions are formed. . 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,
Installing the joint connector on the trunk line;
The first main line tape is wound around the electric wire constituting the main line to maintain the bundling state, and the joint connector is installed at the position around the joint connector and the main line. A process of winding one main tape for lump,
In order to reinforce the tightening of the joint connector to the main line by the first main tape in the installation area of the joint connector of the main line, the second main line from the outside of the first main line tape in the area Fixing the joint connector on the trunk line by further winding the tape for use;
The manufacturing method of the wire harness containing the short circuit characterized by including this.

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