JP6285727B2 - Cable winding device - Google Patents

Description

  The present invention relates to a cable winding device for routing a cable to a movable part on a vehicle body.

  FIG. 5 shows a cable routing structure disclosed in Patent Document 1 below.

  This cable routing structure includes a cable 110 whose front end is connected to an electric circuit of a movable part such as a slide seat on a vehicle body, and a cable winding device that winds up an extra length portion on the base end side of the cable 110 so that the cable 110 can be pulled out. 120 and a guide rail 130 laid on the vehicle body along the moving path of the movable part.

  The guide rail 130 has a cable space 131 into which the cable 110 can be inserted while supporting the movable part so as to be movable.

  In this cable routing structure, the cable 110 drawn from the cable winding device 120 and connected to the movable portion is routed in the cable space 131.

  In addition, the base end 111 of the cable 110 wound up by the cable winding device 120 is pulled out from the opening 121 at the center of the cable winding device 120 to the outside, and the connector 210 mounted on the fixed structure on the vehicle body. Connected to.

  In the case of the cable routing structure of Patent Document 1, the cable winding device 120 includes a locking shaft portion 123 protruding in the width direction of the guide rail 130 (in the direction of arrow X1 in FIG. 5) on the outer peripheral portion. . In addition, a notch hole 133 into which the locking shaft portion 123 can be press-fitted is formed in both side walls at the base end of the guide rail 130 located on the cable winding device 120 side.

  In the case of the cable routing structure of Patent Document 1, the cable winding device 120 is fixed to the guide rail 130 by press-fitting the locking shaft portion 123 of the cable winding device 120 into the notch hole 133 of the guide rail 130. .

French Patent Application Publication No. 2790236 JP 2004-328985 A

  However, in the cable routing structure of Patent Document 1, it is impossible to prevent the locking shaft portion 123 from coming off from the cutout hole 133, and the locking shaft portion 123 and the cutout portion are not able to be removed due to vibration or the like when the vehicle travels. There is a possibility that the engagement with the hole 133 is disengaged.

  In order to prevent such inconvenience, there is a method of screwing the cable winding device 120 to the guide rail 130, but the fixing method by screwing causes a problem that it takes time.

  Moreover, although the winding device of a flat cable is described in patent document 2, since this winding device is also fixed by screwing, there exists a problem that fixing takes time.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cable winding device that can be easily and reliably fixed to a guide rail in order to solve the above problems.

The above-described object of the present invention is achieved by the following configuration.
(1) A cable winding device capable of winding an extra length portion on the base end side of a cable so that the cable can be pulled out and fixed to a guide rail having a cable space,
A rail fitting portion that fits into the cable space and regulates the movement of the cable winding device in a direction orthogonal to the fitting direction;
When the rail fitting portion is fitted in the cable space, the rail fitting portion engages with a locking portion formed on a side wall portion that defines the cable space, and An engaging portion for restricting movement along the fitting direction of the cable winding device;
With
By fitting the rail fitting portion into the cable space, it is fixed to the guide rail ,
The rail fitting portion is a columnar portion that protrudes outward along the fitting direction from the device case of the cable winding device that accommodates the extra length portion of the cable, and the inside of the rail fitting portion. In the cable winding device, a cable groove penetrating in the fitting direction for inserting the cable is formed .

(2) The locking portion is a hole formed in a side wall portion that defines the cable space,
The cable winding device according to (1), wherein the engaging portion is a protrusion that engages with the hole.

  According to the configuration of (1) above, the cable winding device is fixed to the guide rail by fitting the rail fitting portion into the cable space of the guide rail. Therefore, the cable winding device can be easily fixed to the guide rail.

  The rail fitting portion regulates the movement of the cable winding device in the direction orthogonal to the fitting direction by fitting with the cable space. Further, when the rail fitting portion is fitted into the cable space, the engaging portion provided in the rail fitting portion is engaged with the locking portion of the side wall portion of the guide rail, and the engaging portion is locked. The movement along the fitting direction of the cable winding device is also restricted by the engagement with the portion.

  Therefore, the cable winding device is firmly fixed to the guide rail. For this reason, the cable take-up device can be securely fixed to the guide rail even if it is a simple attachment operation without the fitting of the rail fitting part and the cable space being disengaged due to vibrations during vehicle travel. Can do.

  According to the configuration of (2) above, since the locking portion and the engaging portion have a simple structure, an increase in manufacturing cost due to complication of the apparatus can be prevented, and cost can be reduced.

  According to the cable winding device of the present invention, it can be easily and reliably fixed to the guide rail.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view of a cable routing structure including an embodiment of a cable winding device according to the present invention. FIG. 2 is an enlarged plan view of the periphery of the rail fitting portion in the cable winding device shown in FIG. FIG. 3 is an enlarged perspective view of the periphery of the rail fitting portion in the cable winding device shown in FIG. FIG. 4 is a perspective view showing a state where the cable winding device shown in FIG. 1 is fixed to the guide rail. FIG. 5 is a perspective view of a conventional cable routing structure.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a cable winding device according to the present invention will be described in detail with reference to the drawings.

  1 to 4 are perspective views of a cable routing structure including an embodiment of a cable winding device according to the present invention, and FIG. 2 is an enlarged plan view around a rail fitting portion in the cable winding device shown in FIG. FIG. 3 is an enlarged perspective view of the periphery of the rail fitting portion in the cable winding device shown in FIG. 1, and FIG. 4 is a perspective view of the cable winding device shown in FIG. FIG.

  The cable routing structure shown in FIG. 1 is a cable routing structure that connects a cable to an electric circuit incorporated in a slide seat that is a movable part on a vehicle body, and the cable used reduces the routing space. It is a flat cable suitable for.

  The cable routing structure shown in FIG. 1 winds the flat cable 20 whose front end 21 is connected to the electric circuit of the slide seat on the vehicle body and the extra length portion 23 on the base end 22 side of the flat cable 20 so as to be drawable. A cable winding device 30 and a guide rail 40 laid on the vehicle body along the movement path of the slide sheet are provided. In this cable routing structure, the flat cable 20 drawn from the cable winding device 30 and connected to the electric circuit on the slide sheet is routed in the cable space 41 of the guide rail 40.

  Hereinafter, each component used in the cable routing structure will be described in detail.

  The flat cable 20 is equipped with connectors 24 and 25 at its distal end 21 and proximal end 22. The connector 24 at the tip 21 is connected to an electric circuit on the slide sheet. The connector 25 at the base end 22 is connected to a connector on a fixed structure fixed to the vehicle body.

  The cable winding device 30 includes a device case 31 having an annular space 311 that accommodates the extra length portion 23 of the flat cable 20, and a plurality of devices that are rotatably mounted in the annular space 311 and wind the extra length portion 23. A rotor 32 having a guide roller 321 and a rotor urging spring (not shown) that urges the rotor 32 in the direction of winding the flat cable 20 are provided. The upper portion of the annular space 311 is covered with a cover, but the cover is not shown in FIGS.

  The device case 31 includes a shaft-shaped portion 312 positioned at the center of the annular space 311, an annular space 311 that surrounds the periphery of the shaft-shaped portion 312, an annular wall 313 that surrounds the outer periphery of the annular space 311, and a tangential direction of the annular wall 313. And a rail fitting portion 34 protruding from the cable outlet 314. The rail fitting portion 34 is formed with an engagement portion 35 and a cable groove 36.

  In the shaft-shaped portion 312, a groove through which the flat cable 20 accommodated in the annular space 311 is inserted is formed along the central axis. The shaft-shaped portion 312 leads the base end 22 side of the flat cable 20 accommodated in the annular space 311 from the upper end to the outside. As shown in FIG. 1, the flat cable 20 led to the upper end of the shaft-shaped portion 312 traverses over the annular space 311 in the radial direction and is drawn out of the device case 31.

  As shown in FIGS. 1 and 2, the cable outlet 314 is an opening that allows the annular space 311 to communicate with the outside. The flat cable 20 accommodated in the annular space 311 is led out through the cable outlet 314. The A slider 50 is mounted at a position near the tip 21 of the flat cable 20 led out from the cable outlet 314. The slider 50 is slidably engaged with the guide rail 40 and moves on the guide rail 40 together with a slide sheet (not shown).

  The rotor 32 is attached to the bottom of the annular space 311 so as to be rotatable around the shaft-like portion 312 of the device case 31. In the rotor 32, a plurality of guide rollers 321 are arranged on a rotating plate that overlaps the bottom of the annular space 311. The plurality of guide rollers 321 are arranged at substantially equal intervals in the circumferential direction on a circumference centered on the shaft-shaped portion 312. The extra length portion 23 of the flat cable 20 is wound so as to circumscribe the plurality of guide rollers 321.

  A rotor urging spring (not shown) is provided between the rotating plate of the rotor 32 and the device case 31 and urges the rotor 32 in the direction in which the flat cable 20 is wound (in the direction of arrow R1 in FIG. 1).

  As shown in FIGS. 1 and 2, the rail fitting portions 34 are provided at two locations spaced apart in the width direction of the guide rail 40 (the direction of the arrow X2 in FIGS. 1 and 2). Each rail fitting portion 34 has a columnar shape with a rectangular cross-sectional shape, and is tightly fitted into a cable space 41 of a guide rail 40 described later and orthogonal to the fitting direction (the direction of arrow Y2 in FIG. 1). The movement of the cable winding device 30 in the direction to be performed (an arbitrary direction within a plane orthogonal to the fitting direction) is restricted.

  As shown in FIG. 3, the engaging portion 35 has a front end surface 35 a located on the guide rail 40 side that is formed on an inclined surface that is inclined backward with respect to the fitting direction. Further, the rear end surface 35b of the engaging portion 35 is formed on a surface that is orthogonal or backward inclined with respect to the fitting direction. Such an engaging portion 35 engages with a locking portion 43 of a guide rail 40 described later when the rail fitting portion 34 is fitted in the cable space 41, so that the cable winding device 30 is fitted. The movement along the direction (the direction of arrow Y3 in FIG. 4) is restricted.

  Note that the front end surface 35a inclined rearward of the engaging portion 35 facilitates the engagement of the engaging portion 35 with the locking portion 43. Further, the rear end surface 35 b of the engaging portion 35 makes it difficult for the engaging portion 35 engaged with the engaging portion 43 to be detached from the engaging portion 43.

  The guide rail 40 supports a slide sheet (not shown) so as to be movable. The guide rail 40 has cable spaces 41 into which the flat cable 20 can be inserted on both sides in the rail width direction. The cable space 41 is an internal space of the rail side portion 42 having a rectangular cross section and a substantially C-shaped cross section.

  As shown in FIG. 1, the guide rail 40 of the present embodiment is provided with a locking portion 43 on the side wall portion 42 a of the base end portion 40 a of the guide rail 40 located on the cable winding device 30 side. The side wall portion 42 a is a wall portion that is a side portion of the rail side portion 42 that defines the cable space 41.

  In the case of this embodiment, the latching | locking part 43 is a rectangular hole penetrated and formed in the side wall part 42a. When the rail fitting portion 34 is fitted into the cable space 41, the locking portion 43 is engaged with the engaging portion 35 of the rail fitting portion 34, and is fitted in the fitting direction of the cable winding device 30. Restrict movement along.

  As illustrated in FIG. 4, the cable winding device 30 according to the embodiment described above is configured such that the rail fitting portion 34 of the device case 31 is fitted into the cable space 41 of the guide rail 40, thereby 40 is fixed.

  Since the cable winding device 30 of the embodiment described above is fixed to the guide rail 40 by fitting the rail fitting portion 34 to the cable space 41 of the guide rail 40, as in the case of screwing. The cable winding device 30 can be easily fixed to the guide rail 40 without much effort.

  The rail fitting portion 34 regulates the movement of the cable winding device 30 in the direction orthogonal to the fitting direction by fitting with the cable space 41. Further, when the rail fitting portion 34 is fitted into the cable space 41, the engaging portion 35 provided in the rail fitting portion 34 engages with the locking portion 43 of the side wall portion 42a of the guide rail 40, Due to the engagement between the engaging portion 35 and the locking portion 43, the movement of the cable winding device 30 along the fitting direction is also restricted.

  Therefore, the cable winding device 30 is firmly fixed to the guide rail 40. Therefore, the fitting between the rail fitting portion 34 and the cable space 41 does not come off due to vibration or the like during traveling of the vehicle, and the cable winding device 30 can be securely connected to the guide rail 40 even with a simple mounting operation. Can be fixed to.

  Further, in the cable winding device 30 according to the embodiment, since the engaging portion 43 and the engaging portion 35 have a simple structure such as a hole or a protrusion, an increase in manufacturing cost due to a complicated structure is prevented, thereby reducing the cost. Reduction can be achieved.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, the cross-sectional shape of the guide rail 40 and the cross-sectional shape of the rail fitting portion 34 can be different from those in the above embodiment.

  Here, the features of the above-described embodiment of the cable winding device according to the present invention are briefly summarized and listed in the following [1] to [2], respectively.

[1] Cable take-up device (1) capable of pulling out the extra length portion (23) on the base end (22) side of the cable (20) and fixing it to a guide rail (40) having a cable space (41) 30),
A rail fitting portion (34) that fits into the cable space (41) and regulates the movement of the cable winding device (30) in a direction orthogonal to the fitting direction;
A side wall portion (41) that is provided in the rail fitting portion (34) and defines the cable space (41) when the rail fitting portion (34) is fitted into the cable space (41). An engaging portion (35) that engages with a locking portion (43) formed in 42a) and restricts the movement of the cable winding device (30) along the fitting direction;
With
The cable winding device (30), wherein the rail fitting portion (34) is fixed to the guide rail (40) by fitting the rail fitting portion (34) into the cable space (41).

[2] The locking portion (43) is a hole formed in the side wall (42a) that defines the cable space (41),
The cable winding device (30) according to the above [1], wherein the engaging portion (35) is a protrusion that engages with the hole.

20 Flat cable (cable)
21 distal end 22 proximal end 23 extra length portion 30 cable winding device 34 rail fitting portion 35 engagement portion 40 guide rail 40a base end portion 41 cable space 42a side wall portion 43 locking portion

Claims (2)

A cable winding device capable of winding the extra length portion of the base end side of the cable so that it can be pulled out and being fixed to a guide rail having a cable space,
A rail fitting portion that fits into the cable space and regulates the movement of the cable winding device in a direction orthogonal to the fitting direction;
When the rail fitting portion is fitted in the cable space, the rail fitting portion engages with a locking portion formed on a side wall portion that defines the cable space, and An engaging portion for restricting movement along the fitting direction of the cable winding device;
With
By fitting the rail fitting portion into the cable space, it is fixed to the guide rail ,
The rail fitting portion is a columnar portion that protrudes outward along the fitting direction from the device case of the cable winding device that accommodates the extra length portion of the cable, and the inside of the rail fitting portion. In the cable winding device, a cable groove penetrating in the fitting direction for inserting the cable is formed . The locking portion is a hole formed in a side wall defining the cable space;
The cable winding device according to claim 1, wherein the engaging portion is a protrusion that engages with the hole.

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