JP6183730B2 - Composite cable and composite harness - Google Patents

Description

  The present invention relates to a composite cable and a composite harness, and more particularly to a composite cable and a composite harness that connect a wheel side and a vehicle body side in a vehicle such as an automobile.

  In recent years, electric braking devices have been used in vehicles such as automobiles.

  As an electric brake device, an electromechanical brake (Electro-Brake, EMB) and an electric parking brake (EPB) are known.

  The electromechanical brake is also simply called an electric brake or an electric brake, and a dedicated electric motor provided on each wheel of the vehicle according to the amount of operation (stepping force or displacement) of the brake pedal by the driver. The brake driving force is controlled by the piston driven by the electric motor and the brake pad is pressed against the disc rotor of the wheel to generate a braking force according to the driver's intention.

  In the electric parking brake, the driver operates a parking brake operation switch after the vehicle is stopped to drive a dedicated electric motor provided on each wheel of the vehicle, and a brake pad is driven by a piston driven by the electric motor. Is pressed against the disc rotor of the wheel to generate a braking force.

  In recent vehicles, sensors such as an ABS (Anti-lock Brake System) sensor that detects the rotational speed of a running wheel, an air pressure sensor that detects tire air pressure, and a temperature sensor are mounted on the wheel. There are many cases.

  Therefore, the signal line for the sensor mounted on the wheel and the signal line for controlling the electromechanical brake and the power line for supplying electric power to the electric motor for the electromechanical brake and the electric parking brake are used as a common sheath. The wheel side and the vehicle body side are connected using the accommodated composite cable. The composite cable in which the connector is integrally provided is called a composite harness.

  In Patent Document 1, the friction between the electric wire and the sheath is reduced by interposing a lubricant such as talc powder between the plural electric wires and the sheath covering the plural electric wires at the same time. A composite cable has been proposed in which the bending resistance is improved by reducing the stress applied to the electric wire.

JP 2014-135153 A

  However, in the composite cable described in Patent Document 1, it is necessary to wipe off a lubricant such as talc powder when performing terminal processing, and there is a problem that it takes time to process the terminal.

  Then, an object of this invention is to provide the composite cable and composite harness which can improve workability | operativity of terminal processing, maintaining a bending resistance.

  The present invention provides a pair of first electric wires, a pair of twisted wires obtained by twisting a pair of second electric wires having an outer diameter smaller than that of the first electric wires, the pair of first electric wires, and the pair of twisted wires. And a tape member wound in a spiral around the assembly in which the wires are twisted together, wherein the pair of first electric wires are in contact with each other and the pair of second electric wires are in contact with each other And at least a part of the second electric wire is disposed in the valley between the pair of first electric wires, and the twist direction of the twisted pair wire and the twist direction of the assembly are Provided is a composite cable which is different and has a twist direction of the aggregate and a winding direction of the tape member.

  Moreover, this invention is a composite harness provided with the said composite cable and the connector attached to at least any one edge part among the edge parts of the said 1st electric wire and the said 2nd electric wire.

  ADVANTAGE OF THE INVENTION According to this invention, the composite cable and composite harness which can improve workability | operativity of a terminal process can be provided, maintaining a bending resistance.

It is a block diagram which shows the structure of the vehicle using the composite cable which concerns on one embodiment of this invention. It is a cross-sectional view of a composite cable according to an embodiment of the present invention. It is a figure explaining the twist direction of the 1st electric wire and 2nd electric wire in the composite cable of FIG. 2A, and the winding direction of a tape member. It is a schematic block diagram of the composite harness which concerns on one embodiment of this invention.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(Description of vehicle to which composite cable is applied)
FIG. 1 is a block diagram showing a configuration of a vehicle using the composite cable according to the present embodiment.

  As shown in FIG. 1, a vehicle 100 includes an electric parking brake (hereinafter referred to as “EPB”) 101 as an electric braking device.

  The EPB 101 includes an EPB electric motor 101a and an EPB control unit 101b.

  The EPB electric motor 101 a is mounted on the wheel 102 of the vehicle 100. The EPB control unit 101 b is mounted on an ECU (electronic control unit) 103 of the vehicle 100. The EPB control unit 101b may be mounted on a control unit other than the ECU 103, or may be mounted on a dedicated hardware unit.

  Although not shown, the EPB electric motor 101a is provided with a piston to which a brake pad is attached. By moving the piston by the rotational drive of the EPB electric motor 101a, the brake pad of the wheel 102 is moved. It is configured to generate a braking force by pressing against the disc rotor of the wheel. A pair of first electric wires 2 is connected to the EPB electric motor 101a as a power supply line for supplying a drive current to the EPB electric motor 101a.

  When the parking brake operation switch 101c is operated from the off state to the on state when the vehicle 100 is stopped, the EPB control unit 101b outputs a drive current to the EPB electric motor 101a for a predetermined time (for example, 1 second). The brake pad is pressed against the disk rotor of the wheel 102 to generate a braking force on the wheel 102. Further, the EPB control unit 101b outputs a drive current to the EPB electric motor 101a when the parking brake operation switch 101c is operated from the on state to the off state or when the accelerator pedal is depressed. The pad is separated from the disk rotor of the wheel and is configured to release the braking force on the wheel 102. That is, the operation state of the EPB 101 is configured to be maintained after the parking brake operation switch 101c is turned on until the parking brake operation switch 101c is turned off or the accelerator pedal is depressed. The parking brake operation switch 101c may be a lever type or pedal type switch.

  In addition, an ABS device 104 is mounted on the vehicle 100. The ABS device 104 includes an ABS sensor 104a and an ABS control unit 104b.

  The ABS sensor 104 a detects the rotational speed of the traveling wheel 102 and is mounted on the wheel 102. The ABS control unit 104b controls the braking device based on the output of the ABS sensor 104a so that the wheel 102 is not locked during a sudden stop, and controls the braking force of the wheel 102, and is mounted on the ECU 103. A pair of second electric wires 3 is connected as a signal line to the ABS sensor 104a.

  The composite cable 1 according to the present embodiment is obtained by collectively covering the first electric wire 2 and the second electric wire 3 with a sheath 7 (see FIG. 2A). The composite cable 1 extended from the wheel 102 side is connected to an electric wire group 107 in a relay box 106 provided on the vehicle body 105, and is connected to an ECU 103 and a battery (not shown) via the electric wire group 107. .

  In FIG. 1, only one wheel 102 is shown for simplification of the drawing, but the EPB electric motor 101 a and the ABS sensor 104 a may be mounted on each wheel 102 of the vehicle 100, for example, The vehicle 100 may be mounted only on the front wheels or only on the rear wheels.

(Description of composite cable 1)
FIG. 2A is a cross-sectional view of the composite cable 1 according to the present embodiment, and FIG. 2B is a diagram illustrating the twisting direction of the first electric wire and the second electric wire and the winding direction of the tape member.

  2A and 2B, the composite cable 1 includes a pair of first wires 2 and a pair of twisted wires 4 obtained by twisting a pair of second wires 3 having an outer diameter smaller than that of the first wires 2. A tape member 6 wound spirally around an assembly 5 in which a pair of first electric wires 2 and a twisted pair wire 4 are twisted together, and a sheath 7 provided so as to cover the periphery of the tape member 6 And.

  In the present embodiment, the first electric wire 2 is composed of a power supply line for supplying a drive current to the electric motor 101 a for EPB 101 mounted on the wheel 102 of the vehicle 100. The second electric wire 3 includes a signal line for the ABS sensor 104 a mounted on the wheel 102.

  The first electric wire 2 is configured by coating a first insulator 22 made of an insulating resin around a first conductor 21 formed by twisting highly conductive strands such as copper.

  As a strand used for the first conductor 21, one having a diameter of 0.05 mm or more and 0.30 mm or less can be used. When a strand having a diameter of less than 0.05 mm is used, sufficient mechanical strength may not be obtained, and the bending resistance may be lowered. When a strand having a diameter of greater than 0.30 mm is used, the flexibility of the composite cable 1 May decrease.

  What is necessary is just to set suitably the outer diameter of the 1st conductor 21 of the 1st electric wire 2, and the thickness of the insulator 22 according to the magnitude | size of the drive current requested | required. In the present embodiment, considering that the first electric wire 2 is a power supply line for supplying a driving current to the electric motor 101a for EPB 101, the outer diameter of the first conductor 21 is set to 1.5 mm or more and 3.0 mm or less. While setting, the outer diameter of the 1st electric wire 2 was set to 2.0 mm or more and 4.0 mm or less.

  The second electric wire 3 is configured by coating a second insulator 32 made of an insulating resin such as cross-linked polyethylene around a second conductor 31 formed by twisting highly conductive strands such as copper. As the wire used for the second conductor 31, as in the first conductor 21, a wire having a diameter of 0.05 mm or more and 0.30 mm or less can be used.

  The outer diameter of the second electric wire 3 is smaller than the outer diameter of the first electric wire 2. In the present embodiment, in order to twist the pair of twisted wires 4 obtained by twisting one pair (two) of the second electric wires 3 and the pair of first electric wires 2, the outer diameter of the composite cable 1 is made close to a circular shape. From this point of view, it can be said that the second electric wire 3 is desirably about half the outer diameter of the first electric wire 2. Specifically, as the second electric wire 3, one having an outer diameter of 1.0 mm to 1.8 mm and an outer diameter of the second conductor 31 of 0.4 mm to 1.0 mm can be used.

  The twist pitch P <b> 1 of the twisted pair wire 4 may be set to such an extent that an unnecessary load is not applied to the second electric wire 3 in consideration of the outer diameter of the second electric wire 3. Here, although the twist pitch P1 of the twisted pair wire 4 is about 30 mm, the twist pitch P1 of the twisted pair wire 4 is not limited to this. In addition, the twist pitch P1 of the twisted pair wire 4 is an interval along the longitudinal direction of the twisted pair wire 4 at which the arbitrary second electric wire 3 is located at the same position in the circumferential direction of the twisted pair wire 4.

  The assembly 5 is formed by twisting a pair of first electric wires 2 and a twisted pair wire 4 together. In the present embodiment, a pair of first electric wires 2 are brought into contact with each other, a pair of second electric wires 3 are brought into contact with each other, and the pair of first electric wires 2 and the second electric wires 3 are brought into contact with each other. 5 was configured. At this time, at least a part of the second electric wire 3 is disposed in the valley between the pair of first electric wires 2.

  Further, in the present embodiment, a plurality of thread-like (fibrous) interpositions extending in the longitudinal direction of the composite cable 1 are disposed between the pair of first electric wires 2 and twisted wires 4 and the tape member 6 ( The aggregate 5 was configured by twisting together with the first electric wire 2 and the twisted pair wire 4 (not shown). For this reason, a plurality of intervening twist directions and twist pitches are the same as the twist direction and twist pitch of the aggregate 5. The plurality of interpositions are arranged so as to fill a gap between the pair of first electric wires 2 and twisted wires 4 and the tape member 6, and the cross-sectional shape when the tape member 6 is wound around the outer periphery of the assembly 5 is more It is designed to approach a circular shape.

  A part of the plurality of interventions may also be arranged in a valley between the pair of first electric wires 2 or a valley between the pair of second electric wires 3.

  As the interposition, a polypropylene yarn, a staple yarn (rayon staple fiber), an aramid fiber, a nylon fiber, or a fibrous material such as a fiber-based plastic, paper, or cotton yarn can be used. In addition, in the cross-sectional view of FIG.

  In the EPB 101, basically, a drive current is supplied to the electric motor 101a when the vehicle is stopped. On the other hand, the ABS sensor 104a is used when the vehicle is running, and the ABS sensor 104a is not used when the drive current is supplied to the first electric wire 2. Therefore, in the present embodiment, the shield conductor provided around the twisted pair wire 4 is omitted. By omitting the shield conductor, the outer diameter of the composite cable 1 can be reduced as compared with the case where the shield conductor is provided, and the number of parts can be reduced and the cost can be suppressed.

  In addition, although the case where the 1st electric wire 2 supplies a drive current to the electric motor 101a for EPB here is demonstrated, the 1st electric wire 2 is an electromechanical brake (henceforth, EMB) provided in the wheel 102, for example. May be used to supply drive current to an electric motor. In this case, since the current flows through the first electric wire 2 while the vehicle 100 is traveling, it is desirable to provide a shield conductor around the twisted pair wire 4 in order to suppress malfunction of the ABS device 104 due to noise. It can be said.

  Although the case where the second electric wire 3 is a signal line for the ABS sensor 104a is described here, the second electric wire 3 detects another sensor provided on the wheel 102, such as a temperature sensor or tire air pressure. It may be a signal line used for an air pressure sensor or the like, a damper line used for controlling the vibration damping device of the vehicle 100, and a signal line (CAN cable or the like) for EMB control. May be. Even when the first electric wire 2 supplies a driving current to the EPB electric motor 101a, when the second electric wire 3 is used while the vehicle 100 is stopped, malfunction due to noise is suppressed. In addition, it can be said that it is desirable to provide a shield conductor around the twisted pair wire 4.

  The outer diameter of the entire assembly 5 is, for example, about 5 mm to 9 mm. The twist pitch P <b> 2 of the aggregate 5 is preferably set to an extent that an unnecessary load is not applied to the first electric wire 2 and the twisted pair wire 4 in consideration of the outer diameter of the aggregate 5. Here, the twist pitch P2 of the aggregate 5 is about 60 mm, but the twist pitch P2 of the aggregate 5 is not limited to this. The twist pitch P <b> 2 of the aggregate 5 is an interval along the longitudinal direction of the aggregate 5 where the arbitrary first electric wires 2 or the twisted pair wires 4 are located at the same position in the circumferential direction of the aggregate 5.

  A tape member 6 is spirally wound around the assembly 5, and the tape member 6 is in contact with the pair of first electric wires 2 and the twisted pair wires 4. The tape member 6 is interposed between the assembly 5 and the sheath 7 and plays a role of reducing friction between the assembly 5 (electric wires 2 and 3) and the sheath 7 when bent. That is, by providing the tape member 6, the friction between the electric wires 2, 3 and the sheath 7 can be reduced without using a lubricant such as talc powder as in the prior art, and the stress applied to the electric wires 2, 3 during bending can be reduced. It becomes possible to reduce and improve bending resistance.

  As the tape member 6, it is desirable to use a slippery material (a coefficient of friction is small) with respect to the first insulator 22 of the first electric wire 2 and the second insulator 32 of the second electric wire 3. What consists of a nonwoven fabric, paper, or resin (resin film etc.) can be used. More specifically, the tape member 6 has a friction coefficient (static coefficient of friction) between the tape member 6 and the insulators 22 and 32 between the sheath 7 and the insulators 22 and 32 when the tape member 6 is not provided. A member having a smaller coefficient of friction (static coefficient of friction) may be used.

  In addition, as the tape member 6, what has the laminated structure of two or more layers can also be used. In this case, the surface of the tape member 6 in contact with the aggregate 5 may be made of any one of nonwoven fabric, paper, and resin layer. For example, the tape member 6 may be configured such that a resin layer formed on one surface of paper is used and a resin layer having a smaller friction coefficient is wound around the aggregate 5 side.

  The tape member 6 is spirally wound around the assembly 5 so that a part of the width direction (direction perpendicular to the longitudinal direction and the thickness direction of the tape member 6) overlaps. The width at which the tape member 6 overlaps is, for example, ¼ or more and ½ or less of the width of the tape member 6.

  The width of the tape member 6 may be such a width that the tape member 6 does not wrinkle when the tape member 6 is wound, and the tape member 6 having a narrower width is used as the outer diameter of the entire assembly 5 becomes smaller. Is desirable. Specifically, when the outer diameter of the aggregate 5 is 5 mm to 9 mm, the width of the tape member 6 may be about 20 mm to 50 mm. The winding pitch P3 of the tape member 6, that is, the interval along the longitudinal direction where the tape member 6 is at the same position in the circumferential direction (for example, the interval between one end portions in the width direction) is the width of the tape member 6 and the overlapping width (tape member). 6), which is about 40 mm at the maximum. Here, although the winding pitch P3 of the tape member 6 is about 30 mm, the winding pitch P3 of the tape member 6 is not limited to this.

  If the width of the tape member 6 is increased and the winding pitch P3 is increased, the tape member 6 is close to a vertically attached state, and the flexibility of the composite cable 1 is lost and it is difficult to bend. Therefore, the winding pitch P3 of the tape member 6 is desirably 40 mm or less. If the width of the tape member 6 is reduced and the winding pitch P3 is reduced, the number of windings increases, and the composite cable 1 is likely to be bent, but in this embodiment, the bending provided by the tape member 6 is increased. Using the heel, the bent heel caused by the twist of the assembly 5 is corrected (details will be described later).

  A sheath 7 is provided around the tape member 6. The sheath 7 is made of, for example, urethane resin. In the present embodiment, the first electric wire 2 supplies a drive current to the EPB electric motor 101a, and the drive current flows through the first electric wire 2 for a relatively short time. Therefore, the first electric wire 2 is provided around the tape member 6. Although the shield conductor is omitted, a shield conductor may be provided between the tape member 6 and the sheath 7 or on the outer periphery of the sheath 7 depending on the application of the first electric wire 2 or the like.

(Twist direction of twisted pair wire 4 and assembly 5, winding direction of tape member 6)
In the composite cable 1 according to the present embodiment, the twisting direction of the twisted pair 4 and the twisting direction of the aggregate 5 are different, and the twisting direction of the aggregate 5 and the winding direction of the tape member 6 are different. That is, in the composite cable 1, the twisting direction of the twisted pair wire 4 and the winding direction of the tape member 6 are the same direction, and only the twisting direction of the aggregate 5 is different.

  In addition, the twist direction here means that when the composite cable 1 is viewed from the distal end side (the left side in FIG. 2B, the side where the overlap of the tape member 6 is on the upper side), the electric wires 2 and 3 are from the proximal end side to the distal end side. The direction of rotation over. Here, the twist direction of the twisted pair wire 4 is clockwise (clockwise), and the twist direction of the aggregate 5 is counterclockwise (counterclockwise). In addition, the twist direction of the twisted pair wire 4 is a direction in which the two second electric wires 3 are twisted together, and the twist direction of the assembly 5 is the twisted wire in the two first electric wires 2 and the twisted pair wire 4. It is the direction to match.

  Further, the winding direction of the tape member 6 means that when the composite cable 1 is viewed from the distal end side (the left side in FIG. 2B, the side where the overlap of the tape member 6 is on the upper side), The direction of rotation. Here, the winding direction of the tape member 6 is clockwise (clockwise). 2A shows a cross-sectional view when viewed from the front end side. The twisted direction of the twisted pair wire 4 is indicated by a broken line arrow A, the twisted direction of the assembly 5 is indicated by a broken line arrow B, and the winding direction of the tape member 6 is indicated by a broken line arrow. C.

  In general, when electric wires are twisted together or a tape is wound in a spiral shape, a bending wrinkle is imparted according to the twisting direction and winding direction, and the entire cable is naturally curved. In the present embodiment, the twist direction of the twisted pair 4 and the twist direction of the assembly 5 are made different, and the twist direction of the assembly 5 and the winding direction of the tape member 6 are made different. The bend of the wire 4 and the bend of the assembly 5 are reversed and cancel each other, and the bend of the assembly 5 and the bend of the winding of the tape member 6 are reversed and cancel each other. As a result, the linear composite cable 1 that suppresses bending wrinkles can be easily realized. As a result, it is possible to suppress variation in bending characteristics in the longitudinal direction of the composite cable 1.

  Moreover, when the twist direction of the twisted pair wire 4 and the twist direction of the assembly 5 are the same direction, the twisted pair wire 4 is twisted in a direction in which the twist is tightened when the assembly 5 is twisted together. The twist pitch P1 may change. By making the twist direction of the twisted pair wire 4 different from the twist direction of the assembly 5, the assembly 5 can be formed while maintaining the twist pitch P <b> 1 of the twisted pair 4.

  However, if the twist pitch P1 of the twisted pair wire 4 is large, the twist of the twisted pair wire 4 may be loosened when the assembly 5 is twisted together. Therefore, it is desirable that the twist pitch P1 of the twisted pair wire 4 is at least smaller than the twist pitch P2 of the aggregate 5. That is, when the twist direction of the twisted pair 4 and the twist direction of the aggregate 5 are different, the twist pitch P1 of the twisted pair 4 is made smaller than the twist pitch P2 of the aggregate 5 so that the twisted pair 4 It becomes difficult for the twist of the material to collapse, and the cross-sectional shape of the assembly 5 can be stabilized.

  In the present embodiment, since the bent wrinkles of the assembly 5 are corrected by the bent wrinkles caused by winding the tape member 6, it is necessary to reduce the winding pitch P3 of the tape members 6 to such an extent that the bent wrinkles can be applied. is there. Therefore, it is desirable that the winding pitch P3 of the tape member 6 is at least smaller than the twist pitch P2 of the assembly 5. In the present embodiment, the twist pitch P1 of the twisted pair wire 4 is about 30 mm, the twist pitch P2 of the assembly 5 is about 60 mm, and the winding pitch P3 of the tape member 6 is about 30 mm.

  In the present embodiment, the winding pitch P3 of the tape member 6 and the twisting pitch P1 of the paired stranded wire 4 are the same. However, the winding pitch P3 of the tape member 6 is greater than or equal to the twisting pitch P1 of the paired stranded wire 4. do it. By doing in this way, distortion of the tape member 6 in the part which is contacting the twisted pair wire 4 can be reduced, and the cross-sectional shape of the composite cable 1 can be easily formed into a circular shape.

  Similarly, by making the twist direction of the assembly 5 different from the winding direction of the tape member 6, the twist pitch P <b> 2 of the assembly 5 becomes difficult to change when the tape member 6 is wound, and the twist pitch of the assembly 5 is changed. P2 can be stabilized.

  Furthermore, by making the twist direction of the assembly 5 different from the winding direction of the tape member 6, the tape member 6 is in the gap between the first electric wires 2 or between the first electric wire 2 and the twisted pair wire 4. Intrusion is suppressed, and the cross-sectional shape of the composite cable 1 can be made closer to a circular shape. As a result, the appearance of the composite cable 1 can be improved, and the strip operation for removing the sheath 7 can be easily performed. As described above, in the composite cable 1, the bending wrinkles are suppressed, so that the strip operation for removing the sheath 7 is easier.

  Furthermore, by making the twisting direction of the assembly 5 different from the winding direction of the tape member 6, the direction in which the assembly 5 tends to buckle and the direction in which the tape member 6 tends to buckle can be made different. Even if the cable 1 is twisted and bent at the same time, the composite cable 1 which is not easily buckled can be realized.

(Description of composite harness using composite cable 1)
FIG. 3 is a schematic configuration diagram of the composite harness according to the present embodiment.

  As shown in FIG. 3, the composite harness 10 includes a composite cable 1 according to the present embodiment, a connector attached to at least one of the end portions of the first electric wire 2 and the second electric wire 3. , And is configured.

  In FIG. 3, the left side in the drawing shows the end portion on the wheel 102 side, and the right side in the drawing shows the end portion on the vehicle body 105 side (the relay box 106 side). In the following description, the end portion on the wheel 102 side of the composite harness 10 is referred to as “one end portion”, and the end portion on the vehicle body 105 side (relay box 106 side) is referred to as “other end portion”.

  A wheel-side power connector 11a for connection to the EPB electric motor 101a is attached to one end of the pair of first electric wires 2, and a relay box 106 is attached to the other end of the pair of first electric wires 2. A vehicle body side power connector 11b for connection to the electric wire group 107 is attached.

  An ABS sensor 104a is attached to one end of the pair of second electric wires 3 (paired stranded wire 4), and the other end of the pair of second electric wires 3 (paired stranded wire 4) is connected to the relay box 106. A vehicle body side ABS connector 12 for connection to the electric wire group 107 is attached.

  In addition, although the case where the connector was separately provided in the 1st electric wire 2 and the 2nd electric wire 3 (pair twisted wire 4) was demonstrated here, it should be provided with the exclusive connector which connects both the electric wires 2 and 3 collectively. It doesn't matter.

(Operation and effect of the embodiment)
As described above, the composite cable 1 according to the present embodiment includes the tape member 6 spirally wound around the assembly 5, and the twist direction of the paired strand 4 and the twist direction of the assembly 5. And the twisting direction of the assembly 5 and the winding direction of the tape member 6 are different.

  By providing the tape member 6, the friction between the electric wires 2, 3 and the sheath 7 can be reduced without using a lubricant such as talc powder, the stress applied to the electric wires 2, 3 during bending can be reduced, and bending resistance can be achieved. It becomes possible to improve the property. Since the tape member 6 can be easily removed at the time of terminal processing, it becomes possible to improve workability of terminal processing while maintaining bending durability.

  In addition, the twist direction of the twisted wire 4 and the winding direction of the tape member 6 can be made different by making the twist direction of the twisted pair wire 4 different from the twist direction of the assembly 5, and making the twist direction of the assembly 5 different from the winding direction of the tape member 6. It is possible to suppress the bending wrinkles due to, and stabilize the twist pitches P1 and P2 of the twisted pair wire 4 and the assembly 5. As a result, it is possible to suppress the variation in the bending characteristics, and it is possible to realize the composite cable 1 in which flexibility in the longitudinal direction is stable and easy to route. Furthermore, since the cross-sectional shape of the composite cable 1 can be made closer to a circular shape, the strip operation of the sheath 7 becomes easy.

(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, the reference numerals and the like in the following description are not intended to limit the constituent elements in the claims to the members and the like specifically shown in the embodiments.

[1] a pair of first electric wires (2) and a pair of twisted wires (4) obtained by twisting together a pair of second electric wires (3) having an outer diameter smaller than that of the first electric wires (2); A tape member (6) spirally wound around an assembly (5) in which a pair of first electric wires (2) and the twisted pair wire (4) are twisted together, The first electric wires (2) are in contact with each other, and the pair of second electric wires (3) are in contact with each other, and in the valley between the pair of first electric wires (2). , At least a part of the second electric wire (3) is disposed, the twist direction of the twisted pair wire (4) is different from the twist direction of the aggregate (5), and the aggregate (5 ) And the winding direction of the tape member (6) are different from each other in the composite cable (1).

[2] The twist pitch of the twisted pair wire (4) is smaller than the twist pitch of the aggregate (5), and the winding pitch of the tape member (6) is larger than the twist pitch of the aggregate (5). The composite cable (1) according to [1], which is small and is equal to or greater than the twist pitch of the twisted pair wire (4).

[3] The composite cable (1) according to [1] or [2], wherein the surface of the tape member (6) that is in contact with the aggregate (5) is made of any one of a nonwoven fabric, paper, and a resin layer. ).

[4] The first electric wire (2) includes a power supply line for supplying a drive current to the electric motor (101a) for the electric parking brake (101) mounted on the wheel (102) of the vehicle (100). The composite cable (1) according to any one of [1] to [3], wherein the second electric wire (3) includes a sensor signal line mounted on a wheel (102) of the vehicle (100). .

[5] The second electric wire (3) is in contact with the pair of first electric wires (2) in a valley between the pair of first electric wires (2). 4] The composite cable (1) according to any one of the above.

[6] The outer diameter of the aggregate (5) is 5 mm to 9 mm, the width of the tape member (6) is 20 mm to 50 mm, and the tape member (6) is the tape member (6). The composite cable (1) according to any one of [1] to [5], which is wound around the assembly (5) in a spiral shape so that a width of ¼ to ½ of the width of the two overlaps. ).

[7] At least one of the composite cable (1) according to any one of [1] to [6] and the end portions of the first electric wire (2) and the second electric wire (3) A composite harness (10) comprising a connector attached to the end.

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  The present invention can be appropriately modified and implemented without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Composite cable 2 ... 1st electric wire 3 ... 2nd electric wire 4 ... Pair twisted wire 5 ... Aggregate 6 ... Tape member 7 ... Sheath

Claims (7)

A pair of first wires;
A twisted pair of twisted pairs of second wires that have a smaller outer diameter than the first wires;
A tape member spirally wound around an assembly in which the pair of first electric wires and the twisted pair of wires are twisted together;
With
The pair of first electric wires are in contact with each other, and the pair of second electric wires are in contact with each other,
In the valley that is between the pair of first electric wires, at least a part of the second electric wire is disposed,
The twist direction of the twisted pair wire is different from the twist direction of the assembly, and the twist direction of the assembly is different from the winding direction of the tape member,
Composite cable. The twist pitch of the twisted pair wire is smaller than the twist pitch of the aggregate,
The winding pitch of the tape member is smaller than the twist pitch of the aggregate, and is equal to or greater than the twist pitch of the paired wire.
The composite cable according to claim 1. The surface of the tape member that comes into contact with the aggregate is made of any one of a nonwoven fabric, paper, and a resin layer.
The composite cable according to claim 1. The first electric wire comprises a power line for supplying a drive current to an electric motor for an electric parking brake mounted on a wheel of the vehicle;
The second electric wire includes a signal line for a sensor mounted on a vehicle wheel.
The composite cable according to any one of claims 1 to 3. The second electric wire is in contact with the pair of first electric wires in a valley between the pair of first electric wires,
The composite cable according to any one of claims 1 to 4. The outer diameter of the aggregate is 5 mm to 9 mm,
The tape member has a width of 20 mm to 50 mm,
The tape member is spirally wound around the assembly so that ¼ or more and ½ or less of the width of the tape member overlap.
The composite cable according to any one of claims 1 to 5. The composite cable according to any one of claims 1 to 6,
A connector attached to at least one of the ends of the first electric wire and the second electric wire;
Composite harness.

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