JP5847614B2 - Flat cable winding device - Google Patents

Description

  The present invention relates to a flat cable winding device that winds one end of a flat cable and feeds the other end.

  For example, in a car or the like, a slide seat or a slide door provided so as to be slidable with respect to the vehicle is used. Electronic devices such as a seating sensor that detects whether or not an occupant is seated and a seatbelt sensor that detects whether or not a seatbelt is worn are attached to the slide seat. Electronic devices such as a drive motor for opening and closing the door and a door courtesy lamp for illuminating the foot when the door is released are attached. For this reason, in order to connect the electronic device on the slide body side and the electronic device such as the control device provided on the vehicle body side to a vehicle provided with a slide body such as a slide seat or a slide door, Various wire routing devices or power feeding devices that wire wires are used.

  In such an electric cable routing device, there is an excess associated with sliding of the slide body on an electric wire (for example, sometimes referred to as a flat cable or a flat harness) that connects the electronic device on the slide body side and the electronic device on the vehicle body side. Since the long portion is formed, a winding device is used to wind up the extra length portion of the electric wire so that the electric wire does not interfere with the slide body or the like (for example, see Patent Document 1). As shown in FIG. 5, a conventional flat cable winding device 100 described in Patent Document 1 is a device that winds up one end side of a flat cable C and feeds the other end side thereof. A case 101, an inner annular wall 102 that is provided in the case 101 and holds one end of the flat cable C, a rotor 103 that is rotatably guided by the inner annular wall 102, and the rotor 103 is connected to the flat cable C. A coil spring 104 urging in the winding direction R. The rotor 103 is provided with a plurality of rollers 105 arranged along the circumferential direction.

  In the winding device 100, one end side of the flat cable C introduced into the case 101 is inverted by one of a plurality of rollers 105 and held inside the inner annular wall 102, and the other end of the flat cable C The side is led out of the case 101. The winding device 100 rotates the rotor 103 in the winding direction R by the urging force of the coil spring 104, thereby winding the flat cable C around the inner annular wall 102 and flattening the outer periphery of the plurality of rollers 105. The cable C is wound, and thereby the flat cable C is wound. On the other hand, when the other end side of the flat cable C is pulled along with the sliding of the slide body, the rotor 103 rotates in the direction opposite to the winding direction R and is wound around the inner annular wall 102 and the plurality of rollers 105. The winding of the flat cable C that has been removed is released, and the flat cable C is fed out of the case 101.

JP 2004-328985 A

  However, in the conventional winding device described in Patent Document 1, when the flat cable C is unwound, the flat cable C wound around the inner annular wall 102 is loosened, and the loose flat cable C is a roller. There is a possibility of a problem of interfering with 105. The slack of the flat cable C is caused by the fact that the rotation of the roller 105 is temporarily stopped by the frictional resistance between the flat cable C and the roller 105, so that the flat cable C unwound from the inner annular wall 102 is unrolled. This is because it is not sent to the 105 side. It is difficult to completely remove the slack of the flat cable C because of the structure of the winding device. When the slacked flat cable C interferes with the roller 105 and the like, the rotation of the rotor 103 is hindered, and the flat cable C There is a problem that it is impossible to smoothly wind and unwind.

  Therefore, an object of this invention is to provide the flat cable winding apparatus which can smooth winding and unwinding by suppressing the slack of a flat cable.

  The present invention according to claim 1 is a flat cable winding device that winds up one end side of a flat cable and feeds out the other end side thereof, and a case having an insertion hole through which the flat cable is inserted; A central axis that is provided and holds one end of the flat cable; a rotary body that is rotatably provided around the central axis; and a biasing means that biases the rotary body in the winding direction of the flat cable. The rotating body includes a reversing roller that reverses the flat cable introduced from the insertion hole of the case toward the central axis, and a plurality of juxtaposed along the circumferential direction of the rotating body. And a guide roller, and a rotation auxiliary means for rotating the reversing roller in the same direction as the rotation direction of the rotating body. It is the location.

  According to a second aspect of the present invention, in the flat cable winding device according to the first aspect, the rotation assisting means is provided on the central shaft or the gear portion provided on the case and the reversing roller, and And a gear meshing portion meshing with the gear portion.

  According to the first aspect of the present invention, the flat cable holding one end is reversed by the reversing roller at the other end and led out of the case. In this state, when the rotating body is rotated in the winding direction by the restoring force of the urging means, the flat cable is wound around the outer periphery of the central shaft and the outer periphery of the plurality of rollers of the rotating body. At this time, the reversing roller is rotated in the same direction (winding direction) as the rotating body by the rotation assisting means, and the flat cable wound from the outer periphery of the plurality of rollers is sent to the central axis side. When the flat cable is unwound from such a winding state, the rotating body rotates in the direction opposite to winding, and the flat cable is unwound from the outer periphery of the plurality of rollers and unwound from the case. Winding is released from the outer periphery of the central shaft, the flat cable is sent from the outer periphery of the central shaft to the outer periphery of the plurality of rollers via the reverse roller, and the flat cable is fed out. At this time, the reversing roller is rotated in the same direction as the rotator (direction opposite to winding) by the rotation assisting means, and the flat cable unwound from the central axis is sent to the plurality of rollers. Thus, when the flat cable is unwound, the rotation assisting means rotates the reversing roller in the same direction as the rotation direction of the rotating body along with the rotation of the rotating body. The flat cable is forcibly sent to a plurality of rollers, making it difficult for the flat cable to loosen around the central axis, preventing the slack flat cable from interfering with the reverse roller and guide roller, and rotating. The flat cable can be smoothly wound and fed out without hindering the rotation of the body.

  According to the second aspect of the present invention, the reversing roller is arranged in the same direction as the rotation direction of the rotating body with an easy configuration in which a gear portion is provided on the central shaft or the case and a gear engaging portion is provided on the reversing roller. Can be rotated.

It is a perspective view which shows one Embodiment of the flat cable winding apparatus of this invention. It is a disassembled perspective view of the flat cable winding apparatus shown by FIG. It is a top view which shows the partial cross section of the flat cable winding apparatus shown by FIG. It is a top view explaining operation | movement of the flat cable winding apparatus shown by FIG. 1, (A) is a figure which shows a mode that a flat cable is wound up, (B) is a mode that a flat cable is drawn out. FIG. It is a top view which shows the conventional flat cable winding apparatus.

  A flat cable winding device according to an embodiment of the present invention will be described with reference to FIGS. The flat cable winding device 1 winds a flat cable 2 that is routed between a vehicle and a slide seat that is slidably provided on a floor of the vehicle, for example. One end of the flat cable 2 is connected to a connector or the like provided on the floor side, and the other end of the flat cable 2 guided along the slide rail is connected to a connector or the like on the slide seat side.

  The flat cable 2 includes a plurality of core wires that are parallel to each other and an insulating coating that covers each core wire, and is formed in a thin strip shape having flexibility. The core wire is formed by twisting a plurality of conductive wires, and the covering portion is made of a synthetic resin. In addition, in this embodiment, although the case where the flat cable 2 which has a several parallel core wire is used is illustrated, as a flat cable, you may have arbitrary cross-sectional shapes, and a core wire and insulation coating | covering An appropriate configuration can be selected.

  As shown in FIGS. 1 and 2, the flat cable winding device 1 includes a case 3 that accommodates the wound flat cable 2, and a rotary table 4 as a rotating body that is rotatably provided in the case 3. A reversing roller 43 that is rotatably supported on the rotary table 4 and that reverses the flat cable 2 introduced from the groove 44 </ b> A (insertion hole) of the case 3 toward the central axis 7, and a periphery of the rotary table 4. A plurality of guide rollers 44 arranged in parallel along the direction, rotation assist means 5 for rotating the reverse roller 43 in the same direction as the rotation direction of the rotary table 4, and the rotary table 4 attached in the winding direction of the flat cable 2. And a spiral spring 6 (shown in FIG. 2) as biasing means for biasing. The case 3 includes a lower case 3A that accommodates the rotary table 4 and the spiral spring 6, and an upper case 3B (shown in FIG. 2) that covers the upper surface 7B of the lower case 3A and closes the case 3 in a hollow shape. A central shaft 7 that supports the rotary table 4 so as to be rotatable is provided upright at a substantially central portion in 3A.

  As shown in FIG. 2, the lower case 3 </ b> A is installed flat on the floor of the vehicle, and a bottom portion 31 facing the floor, and a peripheral wall 32 erected in a substantially cylindrical shape along the outer periphery of the bottom portion 31, And a cable lead-out portion 33 for leading the other end of the flat cable 2 to the outside. The upper case 3B is formed in a disc shape as a whole, and an insertion hole 3a through which the flat cable 2 is inserted is formed at the center position.

  As shown in FIG. 2, the central shaft 7 is erected on the inner surface of the bottom 31 of the lower case 3 </ b> A and is formed in a substantially cylindrical shape, and the rotary table 4 is rotatably supported by the peripheral surface 7 </ b> A. The central shaft 7 has a slit 71 cut from the peripheral surface 7A toward the center and opened to the upper surface 7B, a locking groove 72 cut from the opposite side of the slit 71 and opened to the upper surface 7B, A communication groove 73 that allows the slit 71 and the locking groove 72 to communicate with each other is formed in a crank shape in a plan view. The slit 71 is inserted and locked through one end side of the flat cable 2, and one end side of the flat cable 2 inserted through the slit 71 is passed through the communication groove 73 and bent, and the upper surface of the central shaft 7. 7B, led into the insertion hole 3a of the upper case 3B, led out of the case 3, and connected to a floor-side connector or the like.

  The cable lead-out portion 33 is provided to protrude from the outer surface of the peripheral wall 32 of the lower case 3A, and a plurality of groove portions 33A for accommodating the flat cable 2 are formed on the upper surface 7B. The plurality of groove portions 33A are provided so as to communicate the inside and the outside of the lower case 3A and extend linearly along the sliding direction of the slide rail. The other end side of the flat cable 2 is routed between the inside and the outside of the case 3 by inserting the flat cable 2 into a predetermined one groove portion 33A among the plurality of groove portions 33A. Further, the flat cable 2 is guided along the groove 33 </ b> A when the flat cable 2 is wound inside the case 3 or drawn out to the outside of the case 3.

  As shown in FIG. 2, the turntable 4 includes a substrate 40 formed in an overall disk shape and a peripheral plate 41 erected from the periphery of the substrate 40. The substrate 40 is formed with a hole 4a through which the central shaft 7 is inserted and an insertion hole 42 through which a shaft 45 (described later) of the reversing roller 43 is inserted. The rotary table 4 includes three reversing rollers 43 for reversing the flat cable 2 introduced into the case 3 from the groove 33A toward the central axis 7 and three guide rollers 44 along the circumferential direction. They are arranged alternately at equal intervals. The plurality of rollers 43 and 44 are configured such that the flat cable 2 is wound around the outer periphery of the plurality of rollers 43 and 44.

  The reverse roller 43 includes a shaft portion 45 formed in a columnar shape, and a roller 46 in which a hole portion 4b through which the shaft portion 45 is inserted is formed. Further, a claw portion (not shown) is provided on the outer peripheral surface of the shaft portion 45, and a claw receiving portion (not shown) that is engaged with the claw portion is provided on the inner peripheral surface of the roller 46. The reversing roller 43 is inserted in the insertion hole 42 so that the shaft 45 protrudes from the upper surface of the turntable 4, and the shaft 45 is inserted into the hole 4 b of the roller 46. The roller 46 is supported by the shaft portion 45 so as not to rotate by engaging with the claw receiving portion. Thus, the reversing roller 43 is rotatably attached to the rotary table 4. In the present embodiment, the shaft portion 45 is formed in a columnar shape, but the shaft portion 45 may be formed in a polygonal column shape that is a triangle or more.

  The guide roller 44 includes a boss 47 erected on the upper surface of the substrate 40 and a cylindrical roller 48 through which the boss 47 is inserted. The boss 47 rotatably supports the roller 48.

  The rotation assisting means 5 includes a gear portion 51 provided on the central shaft 7 and a gear meshing portion 52 provided on the reversing roller 43 and meshing with the gear portion 51.

  The gear portion 51 is formed in a disc shape as a whole, and a hole portion 5a through which the central shaft 7 is inserted is formed at the center position. A plurality of teeth are formed on the outer surface of the gear portion 51 along the circumferential direction. Further, a claw portion (not shown) that engages with the central shaft 7 is provided on the inner peripheral surface of the gear portion 51, and the gear portion 51 is engaged with the central shaft 7 by the claw portion engaging with the central shaft 7. It is supported so that it cannot rotate. In the present embodiment, the central shaft 7 and the gear portion 51 are provided separately, but the central shaft 7 and the gear portion 51 may be provided integrally. Moreover, in this embodiment, although the gear part 51 is provided in the center axis | shaft 7, the gear part 51 may be attached to the upper case 3B.

  The gear meshing portion 52 is provided at an end portion of the shaft portion 45 in the axial direction. The gear engagement portion 52 is formed such that the largest dimension in the radial direction is larger than the dimension in the radial direction of the insertion hole 42 of the rotary table described above. The gear meshing portion 52 rolls on the outer periphery of the gear portion 51 while meshing with the teeth of the gear portion 51 in a state where the shaft portion 45 is inserted into the insertion hole 42 of the rotary table 4. Thus, the gear part 51 and the gear meshing part 52 rotate (roll) the reverse roller 43 in the same direction as the rotation direction of the rotary table 4.

  The spiral spring 6 is formed by winding a linear metal having elasticity in a spiral shape. The spiral spring 6 has an end portion on the center side inserted and fixed in a locking groove 72 of the center shaft 7, and an end portion on the outer peripheral side is locked on the lower surface of the rotary table 4, so that the rotary table 4 is connected to the flat cable. 2 is energized in the winding direction. That is, the rotary table 4 is rotated by a predetermined number in the direction opposite to the winding direction to store the urging force in the spiral spring 6, and then the flat cable 2 reversed by the reversing roller 43 is wound around the outer periphery of the plurality of guide rollers 44 Thus, the rotary table 4 is biased in the winding direction by the restoring force of the spiral spring 6, and the flat cable 2 is wound around the central shaft 7 and the rotary table 4 by this biasing force.

  In the present embodiment, the urging means for urging the rotary table 4 in the winding direction of the flat cable 2 is constituted by the spiral spring 6. However, the urging means has a motor and a driving force generated by the rotation of the motor. It is comprised with the transmission means transmitted to the turntable 4, and the turntable 4 may be rotated. In the present embodiment, the rotation assisting means 5 includes a gear part 51 and a gear meshing part 52, but the rotation assisting means applies the motor and the driving force generated by the rotation of the motor to the reverse roller 43. The transmission means is configured to have a transmission means and a control means, and the control means may rotate the reversing roller 43 in the same direction as the rotation direction of the rotary table 4 so as to interlock with the rotation of the rotary table 4. Good.

  Next, the operation of the flat cable 2 in the flat cable winding device 1 will be described with reference to FIG. As shown in FIG. 4A, one end side of a plurality (three in this embodiment) of flat cables 2 is overlapped and locked to the slit 71, and the other end side is independent one by one. 2 is routed to the winding direction side of each reversing roller 43, and the other end side of the flat cable 2 is reversed by each reversing roller 43 and led out of the case 3 from the groove 33 </ b> A. As described above, when the rotary table 4 is rotated in the winding direction by the restoring force of the spiral spring 6, the flat cable is connected to the outer periphery of the central shaft 7 and the outer periphery of the plurality of rollers 43 and 44 of the rotary table 4. 2 is wound up. At this time, since the gear portion 51 and the gear meshing portion 52 are engaged with each other, the reversing roller 43 rotates in the winding direction (the same direction as the rotation of the rotating table 4) as the rotating table 4 rotates in the winding direction. ) And the flat cable 2 wound from the outer periphery of the plurality of rollers 43 and 44 is sent to the central shaft 7 side.

  When the flat cable 2 is unwound from the state in which the flat cable 2 is wound inside the case 3 as described above, the rotary table 4 rotates in the direction opposite to the winding as shown in FIG. The cable 2 is unwound from the outer periphery of the plurality of rollers 43, 44 and is fed out of the case 3, and the winding is unwound from the outer periphery of the central shaft 7, and the flat cable 2 is reversed from the outer periphery of the central shaft 7. The flat cable 2 is fed out to the outer periphery of the plurality of rollers 43 and 44 through 43. At this time, since the gear portion 51 and the gear meshing portion 52 are meshed with each other, the reversing roller 43 rotates in the direction opposite to the winding (the rotation of the rotating table 4 with the rotation of the rotary table 4 in the direction opposite to the winding). The flat cable 2 rolled in the same direction and unwound from the central shaft 7 is fed to the outer peripheral side of the plurality of rollers 43 and 44, and the flat cable 2 is sequentially fed out of the case 3.

  According to the above-described embodiment, when the flat cable 2 is unwound, the rotation assisting means 5 rotates the reversing roller 43 in the same direction as the rotation direction of the rotary table 4, so Thus, the flat cable 2 is forcibly fed to the outer peripheral side of the plurality of rollers 43 and 44, so that the flat cable 2 is less likely to be loosened around the central shaft 7. Interference with the guide roller 44 is suppressed, and the flat cable 2 can be smoothly wound and fed out without inhibiting the rotation of the turntable 4.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

  For example, in the above-described embodiment, the flat cable winding device used in the electric wire routing device for the slide sheet has been exemplified. However, the winding device of the present invention is not limited to the slide sheet, and the electric wire routing for the sliding door. It can also be used for a device, and can also be used for a wiring device for wiring an electric wire to a door or bonnet that opens and closes. Furthermore, the winding device of the present invention may be used not only in a vehicle but also in a routing device for routing an electric wire across the movable portion in an apparatus or device provided with various movable portions. Moreover, in the said embodiment, in order to simplify description, although the winding apparatus which winds up one flat cable was illustrated, this book is also applied to the winding apparatus which bundles and winds up a plurality of flat cables. The invention can be used.

1 Flat cable winding device 2 Flat cable 3 Case 4 Rotary table (rotating body)
5 Rotation assisting means 6 Spiral spring (biasing means)
7 Center shaft 43 Reverse roller 44 Guide roller 51 Gear portion 52 Gear meshing portion

Claims (2)

A flat cable winding device for winding one end of a flat cable and feeding the other end,
A case having an insertion hole for inserting the flat cable;
A central axis provided in the case and holding one end of the flat cable;
A rotating body provided to be rotatable about the central axis;
Biasing means for biasing the rotating body in the winding direction of the flat cable,
In the rotating body, a reversing roller for reversing the flat cable introduced from the insertion hole of the case toward the central axis, and a plurality of guide rollers arranged in parallel along the circumferential direction of the rotating body, Is provided,
A flat cable winding device, characterized in that a rotation assisting means for rotating the reverse roller in the same direction as the rotation direction of the rotating body is provided. The rotation assisting means includes
A gear portion provided on the central shaft or the case;
The flat cable winding device according to claim 1, further comprising a gear meshing portion that is provided on the reversing roller and meshes with the gear portion.

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