JP3558566B2 - Wire harness winding method and winding device already installed - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention particularly relates to a method for winding a wired harness that has been routed and wound up, such as wires, cables, and wire harnesses that have already been routed in an automobile, and a winding that can be retrofitted to the harnesses that have been routed. It relates to a take-off device.
[0002]
[Prior art]
As a general winding device for extending and winding the harnesses for a long time, for example, a cable winding mechanism described in Japanese Patent Laid-Open No. 9-84244, and the Japanese Patent Laid-Open No. 11 previously proposed by the applicant of the present application. There is a flat cable winding device described in Japanese Patent No. -116145. Both of these devices are electrically connected by connecting electrical connectors provided at both ends of the cable to one device electrical system and the other device electrical system, respectively. Such cables can be unwound from the take-up drum for as long as necessary and can be drawn long and rewound short. That is, in general cable winding devices including the devices of the above-mentioned publications, most of them are designed to be electrically connected by connecting electrical connectors provided at both ends of the cable to electrical equipment.
[0003]
On the other hand, in an automobile, as is well known, various electrical components such as a power window device are incorporated in a vehicle body door, and harnesses are routed between the body and the panel side. Therefore, a harness take-up device for extending or rewinding the routed harnesses following the opening and closing movement of the door is required.
[0004]
By the way, in such a harness winding device for automobile use, after harnesses are routed between the body panel and the door of the vehicle body, the harnesses are wound up to an arbitrary length position. It would be convenient if only the mechanism part could be retrofitted and incorporated easily.
[0005]
One of the advantages obtained by retrofitting the winding mechanism section is that only the winding mechanism section can be incorporated into the harness by using the extra length of the harnesses already routed on the vehicle body. There is no need to use a cable-attached mechanism like the collecting device. Therefore, it is not necessary to provide a connection device such as an electric connector at both ends of the cable in the case of the winding mechanism without a cable. In this way, by adopting a retrofitting type to a cable that has been routed, a simple mechanism that does not require an electrical connector or the like without a cable can be realized as a winding device, and this can contribute to a reduction in material costs.
[0006]
Also, in the case of harnesses that are routed between the vehicle body door, the extended length varies depending on the vehicle type and the door type, and it is inconvenient to manufacture a harness winding device for each such extended length. It is. If possible, versatility that can be handled by a harness winding device of one specification is desired, but such general use is difficult or impossible with a general winding device including the devices of the above publications. The reason will be schematically described with reference to FIG. 6 for the flat cable winding device disclosed in Japanese Patent Application Laid-Open No. 11-116145.
[0007]
The flat cable 1 of the present apparatus is routed between, for example, an upper back panel on the body panel side and a luggage door usually called a trunk room door. The winding case 4 accommodates the flat cable 1 in a wound state, and can be extended for a long time by following the opening / closing operation of the luggage door, and can be wound shortly. In this case, the winding case 4 is fixed to the upper back panel.
[0008]
One end of the flat cable 1 is connected to an electric connector 2 provided on the inner central axis of the winding case 4 and is connected to an electric circuit of, for example, an upper back panel via the electric connector 2. Yes. Further, the other end side of the flat cable 1 is pulled out from the winding case 4, and can be connected to an electric circuit on the luggage door side by an electric connector 3 connected to the other end.
[0009]
[Problems to be solved by the invention]
As is apparent from FIG. 6, in such a flat cable winding device, the length of the flat cable 1 that can be wound is limited if the diameter of the cable winding drum in the winding case 4 is constant. . If the winding length is increased, the diameter of the cable winding cylinder must be increased, which leads to an increase in the winding device, which is particularly disadvantageous in an automobile that is severely restricted in the accommodation space.
[0010]
Therefore, the object of the present invention is (1) it can be easily retrofitted and installed at an arbitrary length position for harnesses routed between a body panel and a door of a vehicle body in an automobile. , (2) Unwinding and winding up to the maximum length by following the door opening and closing operation without increasing the diameter of the winding coil of the harness, (3) General purpose for vehicles and door types with different harness winding lengths It is to provide a wired wire harness winding method and a winding device that can cope with the problem.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the wire harness winding method according to claim 1 according to the present invention is such that one end side of the wire harness is electrically connected to the structural body and the other end side thereof is the structural body. Is connected to a movable body that opens and closes with respect to the wire harness, and the mid-length portion of the wired harness that has already been routed is spirally wound around a winding drum having a spiral guide plate on the winding drum. The winding drum is rotatably accommodated in the winding case, and is fixedly attached to either the structure body or the movable body by retrofitting in a state where the return spring is biased in the forward rotation direction. Thus, following the opening operation of the movable body, the winding drum is reversed so as to resist the return spring urging so that the wired harness can be fed from one end side or the other end side. Together with the above Following the closing operation of the moving object from a state in which reverse the winding drum by the normal rotation by urging the return spring, characterized in that to roll back up the said-installing already wire harness.
[0012]
From the above, the wire harness can be routed, and the take-up drum in the take-up case can be wound around an arbitrary position of the already-arranged wire harness for easy retrofitting. In other words, since only the mechanism part of the winding device is incorporated into the already installed wire harness by a retrofitting method, it is not necessary to use a winding device equipped with a wire harness in advance, and therefore electrical connectors are provided at both ends of the wire harness. There is no need.
[0013]
As a specific example of the movable body, the present method can be suitably used for a vehicle body door of an automobile. That is, in the case of a vehicle body door incorporating an electrical component, a wire harness is routed between the body panel side. If a winding device is retrofitted and assembled to such a wire harness that has already been routed, it will be unwound and unwound following the opening and closing movement of the vehicle body door.
[0014]
In addition, when the structural body is a body panel, more specifically, an upper back panel, the luggage door corresponds to a movable body as a more specific example of a vehicle body door that opens and closes with respect to the upper back panel. Effectively applied. In this case, the winding case of the winding device is fixedly attached to the upper back panel, and the extra length of the routed wire harness of an arbitrary length is fed out following the opening and closing movement of the luggage door. Can be returned.
[0015]
On the other hand, the wired harness harness winding device according to claim 2 according to the present invention electrically connects one end side of the wire harness to the structural body and opens and closes the other end side with respect to the structural body. Electrically connected to the movable body and routed, following the opening operation of the movable body, feeding the wired harness from one end side or the other end side, and following the closing operation of the movable body A wired wire harness winding device configured to rewind the wired wire harness, wherein the winding case includes a case body and a case lid, and the winding is rotatably supported in the winding case. A take-up drum having a take-up drum, and a take-up spring for biasing the take-up drum in a normal rotation direction, and the take-up case, the take-up drum, and the take-up spring are already routed In the extra length part of the wire harness A spiral guide plate having a spiral shape that guides the surplus length portion and winds in a spiral manner is provided on the outer peripheral surface of the winding drum, and further, the winding drum When the winding spring is reversed so as to resist the return spring bias, the winding spring is placed in the winding case and the winding drum so that the winding drum rotates forward by the return spring bias from the reverse state. It is provided between and.
[0016]
From the above configuration, only the mechanical part of the winding device can be easily retrofitted and assembled at an arbitrary position of the already arranged wire harness. In the retrofitted winding device, it is possible to spirally wind the extra length of the wire harness that has already been routed on the winding drum in the winding case. The maximum length of the wire harness can be fed out by the winding drum with reduced tension and can be rewound. By being able to extend and rewind at the maximum length in this way, if it is applied to an automobile door as a specific example of a movable body, even if the length of unwinding / unwinding differs depending on the door type, this device with one specification is universal. It can correspond to.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a wire harness winding device according to the present invention will be described in detail based on the drawings.
[0018]
1 and 2 show an application example in which the wire harness winding device 10 of this example is mounted between an upper back panel 30 of an automobile body panel and a luggage door 31 of a trunk room when the door is closed and when the door is opened. It is principal part sectional drawing. In this case, the wire harness winding device 10 can be assembled by retrofitting the wire harness 20 routed between the upper back panel 30 and the luggage door 31.
[0019]
3, the wire harness 20 is formed by covering, for example, an assembled electric wire in which a plurality of electric wires are bundled or twisted with a protective tube 21 from the outside. The electric wire end 22 is connected to the electric circuit on the upper back panel 30 through a bracket-shaped clip 24. In addition, the wire end 23 on the other side of the wire harness 20 is connected to the electric circuit of the luggage door 31 through a resin-molded clip 25.
[0020]
Here, in the wire harness winding device 10, the winding case 11 forming the device main body is fixed and attached to an appropriate position on the upper back panel 30 side. As shown in FIG. 4, the winding case 11 includes a cylindrical case body 12 and a case lid 13 that is coupled to the winding case 11 by elastic fitting or the like on the concave and convex portions. The case main body 12 is provided with a drum rotation support shaft 12a rising at an inner center formed in a cylindrical shape, and a harness feeding port portion 12b having a U-shaped cross section that protrudes outwardly so as to open a part of the peripheral wall. It has been. The case lid 13 that closes the case body 12 is assembled by, for example, elastically fitting an uneven portion around the periphery of the case body 12. The case lid 13 is provided with a harness locking port portion 13a protruding from a substantially central position of the outer surface, and provided with a harness feeding port portion 13b having a U-shaped cross section protruding outward from a part of the outer peripheral edge. Yes. The harness feed-out port portion 13b is coupled to the harness feed-out port portion 12b provided in the case body 12 so as to be aligned vertically. Further, a bearing portion 13 c is provided so as to protrude from the center of the case lid 13 to the outside.
[0021]
Inside the winding case 11 is housed a winding drum 14 which is the essential member of the present invention for feeding and unwinding the wire harness 20, and further, a winding spring 15 by a coil spring is housed inside the winding drum 14. Is housed. The winding spring 15 counteracts this and urges the winding drum 14 to return in the forward rotation direction in a direction to rewind the wire harness 20 fed out from the harness feeding ports 12b and 13b.
[0022]
The winding drum 14 is pivotally supported inside the winding case 11 so as to be rotatable on a vertical vertical axis as shown in the drawing connecting the drum rotation support shaft 12a on the case body 12 side and the bearing portion 13c on the case lid 13 side. ing. A winding drum 14a that forms a drum body is provided, and circular flanges 14b and 14c are provided above and below the winding drum 14a. The lower flange 14b is provided with a support shaft hole (not shown) on the center shaft, and this support shaft hole can be rotated by being fitted to the drum rotation support shaft 12a rising on the center shaft of the case body 12. Supported by Further, the upper flange 14c has a rotating shaft 14d that protrudes outward from the center, and is provided with discontinuous cutout holes 14e for weight reduction along the outer peripheral edge, and a part of the outer peripheral edge is notched. A harness pull-out recess 14f is provided in this manner.
[0023]
As shown in FIG. 5, a spiral guide plate 14g is spirally formed on the winding drum 14a of the winding drum 14, so that the wire harness 20 can be spirally wound several times. When the dimension of the drum diameter D of the winding drum 14a is minimized, it is set so that the wire harness 20 having the maximum length can be wound as compared with the winding drum 14 having the drum diameter D of the same specification. ing.
[0024]
From the above configuration, when the wire harness winding device 10 of this example is retrofitted to the already installed wire harness 20 between the upper back panel 30 and the luggage door 31 of the automobile shown in FIGS. The operation and action will be described.
[0025]
The wire harness 20 is routed by connecting one end of the electric wire 22 to the upper back panel 30 via the clip 24 and connecting the other end of the electric wire 23 to the luggage door 31 via the clip 25.
[0026]
On the other hand, in the winding case 11, the case lid 13 is removed from the case body 12 and the winding drum 14 is opened, so that the winding case 11 is ready for retrofitting. In this state, as shown in FIG. 5, the intermediate length of the wire harness 20 is spirally wound around the winding drum 14a of the winding drum 14 several times while being guided by the spiral guide plate 14g.
[0027]
The wire end 22 on one side of the spirally wound wire harness 20 is twisted and passed through the harness pull-out recess 14f of the upper flange 14c, and further pulled out to the outside from the harness locking opening 13a of the case lid 13. As described above, the tip end of the electric wire 22 drawn out from there is locked to the upper back panel 30 side via the clip 24 and connected to the electric circuit there.
[0028]
On the other hand, the wire end 23 on the other side of the spirally wound wire harness is drawn out to the outside from the harness feeding ports 12b and 13b where both the case main body 12 and the case lid 13 are combined. As described above, the other end 23 of the electric wire drawn out from there is locked to the luggage door 31 via the clip 25 and connected to the electric circuit there.
[0029]
Thus, after the extra length part in the middle of the wire harness 20 is spirally wound around the winding drum 14, the case lid 13 is elastically fitted to the case body 12 to be assembled.
[0030]
Accordingly, when the luggage door 31 is closed as shown in FIG. 1 during use after the actual machine is mounted, most of the length of the wire harness 20 is spirally wound around the winding drum 14 in the winding case 11. It is wound up and accommodated. In this state, when the luggage door 31 is opened as shown in FIG. 2, the wire harness 20 is pulled in the direction of the electric wire end 23 on the other side following any door opening operation. The wire harness 20 is pulled out from the harness feeding ports 12b and 13b of the winding case 11 by the tensile force, and the winding drum 14 rotates reversely against the winding spring 15 so that the wire harness 20 has a required length. It is paid out.
[0031]
In the present example, the wire harness winding device 10 is retrofitted into the already installed wire harness 20 and is installed between the upper back panel 30 and the luggage door 31. Of course, the present invention is not limited to the upper back panel 30 and the luggage door 31 but can be applied to doors such as a hatchback.
[0032]
The feeding length of the wire harness 20 varies depending on the arrangement site and the vehicle type. Even in such a case, the extra length portion of the wire harness 20 is spirally wound around the winding drum 14, so that the difference in the feeding length can be universally handled. That is, rather than preventing the enlargement of the take-up drum 14 rather than preventing the enlargement of the take-up drum 14 by using the wire harness take-up device 10 having the take-up drum diameter of the same specification size corresponding to the difference in the feeding length. The wire harness 20 having the maximum length can be fed out with the winding drum 14 with the diameter D minimized.
[0033]
【The invention's effect】
As explained above, the wired wire harness winding method according to claim 1 according to the present invention is configured such that the wire harness is routed and the wire harness is placed at an arbitrary position of the wired harness. It can be easily retrofitted by winding a winding drum. That is, since only the mechanism of the winding device is incorporated into the already installed wire harness by a retrofitting method, it is not necessary to use a winding device with a wire harness attached in advance, and it is necessary to provide a connection device such as an electrical connector. Nor. In addition, the extra length of the wire harness that has already been routed can be spirally wound on the winding drum in the winding case. The length of the wire harness can be paid out and can be rewound. By being able to extend and rewind at the maximum length in this way, if it is applied to an automobile door as a specific example of a movable body, even if the length of unwinding / unwinding differs depending on the door type, this device with one specification is universal. Can be in time.
[0034]
As a specific example of the movable body, the present method can be suitably used for a vehicle body door of an automobile. That is, in the case of a vehicle body door incorporating an electrical component, a wire harness is routed between the body panel side. If a winding device is retrofitted and assembled to such a wire harness that has already been routed, it will be unwound and unwound following the opening and closing movement of the vehicle body door.
[0035]
In addition, when the structural body is a body panel, more specifically, an upper back panel, the luggage door corresponds to a movable body as a more specific example of a vehicle body door that opens and closes with respect to the upper back panel. Effectively applied. In this case, the winding case of the winding device is fixedly attached to the upper back panel, and the extra length of the routed wire harness of an arbitrary length is fed out following the opening and closing movement of the luggage door. Can be returned.
[0036]
The wired harness harness winding device according to the second aspect of the present invention can be easily retrofitted and incorporated only in the mechanical portion of the winding device at an arbitrary position of the wired wire harness. In the retrofitted winding device, it is possible to spirally wind the extra length of the wire harness that has already been routed on the winding drum in the winding case. The maximum length of the wire harness can be fed out by the winding drum with reduced tension and can be rewound. By being able to extend and rewind at the maximum length in this way, if it is applied to an automobile door as a specific example of a movable body, even if the length of unwinding / unwinding differs depending on the door type, this device with one specification is universal. Can be in time.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view when a door is closed showing an application example in which a wire harness winding device according to an embodiment of the present invention is assembled to a wire harness routed between an upper back panel and a luggage door of an automobile.
FIG. 2 is a cross-sectional view showing the wire harness winding device of the present embodiment when the luggage door is opened.
FIG. 3 is an external perspective view showing the wire harness winding device of the present embodiment after being retrofitted to a wiring wire harness and assembled.
FIG. 4 is an exploded view of the wire harness winding device of the present embodiment.
FIG. 5 is a side view showing an aspect in which a midway length portion of the wire harness is spirally wound around a winding drum as a main part in the wire harness winding device of the present embodiment.
FIG. 6 is a cross-sectional view showing a flat cable winding device described in the publication as a conventional example of a wire harness winding device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Wire harness winding apparatus 11 Winding case 12 Case main body 12a Drum rotation spindle 12b Harness delivery opening 13 Case lid 13a Harness latching opening 13b Harness delivery opening 14 Winding drum 14a Winding drum 14g Spiral Guide plate 20 Pre-wired wire harness 21 Protective tube 22 Wire end 23 on one end side Wire ends 24 and 25 on the other end clip

Claims (2)

One end side of the wire harness is electrically connected to the structure body, and the other end side is electrically connected to a movable body that opens and closes with respect to the structure body, and wired.
The extra length part of the wired harness that has been routed is spirally wound around a winding drum having a spiral guide plate on the winding drum,
The winding drum is rotatably accommodated in a winding case, and fixed and attached to either one of the structure main body or the movable body in a state in which a return spring is biased in the forward rotation direction.
Following the opening operation of the movable body, the winding drum is reversed so as to resist the return spring biasing, and the wired harness can be fed from one end side or the other end side, and
The already-laid wire harness can be rewound by following the closing operation of the movable body so that the winding drum is rotated in the forward direction by the return spring biasing from the reversed state. Harness winding method. One end of the wire harness is electrically connected to the structural body, and the other end is electrically connected to a movable body that opens and closes with respect to the structural body. The routed wire harness take-up device is configured to unwind the routed wire harness from one end side or the other end side and to rewind the routed wire harness following the closing operation of the movable body. And
A winding case comprising a case main body and a case lid, a winding drum having a winding drum that is rotatably supported in the winding case, and a winding for biasing the winding drum in a forward rotation direction. A spring and
The take-up case, the take-up drum, and the take-up spring are configured so as to be fixed and incorporated in the mid-length portion of the already-arranged wire harness by retrofitting, and the mid-length portion is guided. A spiral guide plate having a spiral shape to be spirally wound is provided on the outer peripheral surface of the winding drum, and further, when the winding drum is reversed to resist the return spring bias, the winding from the reversed state. The wired harness harness winding device, wherein the winding spring is provided in the winding case and between the winding drum so that the drum rotates forward by the return spring bias.

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