JP6168110B2 - Wire harness wiring device for slide sheet - Google Patents

Description

  The present invention relates to a wire harness routing device for a slide sheet, and in particular, prevents foreign matter from entering from an opening provided in a surplus length absorption case so that a slider for inserting a wire harness can be interlocked with the movement of the slide sheet. Is.

  A vehicle seat is equipped with various electrical components such as an electric reclining device and a seat heater. In order to supply power to these electrical components, a power supply wire harness is routed from the vehicle body floor to the seat. In the case of a slide sheet, it is necessary to cause the wire harness to follow the sliding motion of the sheet. For this reason, the wire harness is provided with an extra length portion.

  As described in Japanese Patent Application Laid-Open No. 2010-193599 (Patent Document 1), Japanese Patent Application Laid-Open No. 2014-121930 (Patent Document 2), etc. In many cases, a surplus length absorbing case for accommodating the wire surplus length portion of the harness is provided, and the surplus length absorbing case is disposed on the floor on the side of the seat rail. In the routing device, a slider for inserting a wire harness to be routed on a seat is slidably mounted in a slide space provided in the surplus length absorption case, and the wire harness passing through the slider is turned in the surplus length absorption case. It is pulled out to the floor side.

  Specifically, in the wire harness routing device disclosed in Patent Document 2 and the like, as shown in FIGS. 15 (A) and 15 (B), a generally J-shape that is horizontally arranged on the floor side. A guide hole 120 is provided on the upper surface of the straight portion 100a extending from the center to the rear end of the extra length absorbing case 100 so that the slider 110 can move in conjunction with the back-and-forth movement of the sheet. The guide hole 120 is provided so as to penetrate the lid 100y that covers the shallow main body 100x of the extra length absorption case 100. The wire harness 150 is passed through the slider 110, and the wire harness 150 drawn out from the upper end of the slider 110 is routed to the seat side and connected to the seat harness, while the slider 110 protrudes into the excess length absorbing case 100 through the guide hole 120. The wire harness 150 drawn out from the lower part of the wire harness 150 is inserted into the front turn 100b of the extra length absorption case 100 to make a U-turn, pulled out from the opening 100c, and connected to the floor harness.

JP 2010-193599 A JP 2014-121930 A

As described above, the conventional extra length absorbing case 100 is provided with the guide hole 120 opened on the upper surface in order to interlock the slider 110 in accordance with the back and forth movement of the sheet. There is a possibility that foreign matter such as dust, pebbles, and nails may enter the absorption case 100. In particular, in a long slide sheet in which the longitudinal movement distance of the sheet is as long as 400 mm to 1200 mm, since the movement distance of the slider is long, the length of the guide hole 120 is also large, and foreign matters are more likely to be mixed.
If foreign matter enters the extra length absorption case in this way, the operation of the slider 110 is hindered, and if the slider does not move, the wire harness may be broken.

  The present invention intends to solve the above problem, and it is an object of the present invention to prevent foreign matters from entering from a guide hole for a slider opened on the upper surface of the surplus length absorbing case.

In order to solve the above-described problems, the present invention provides a surplus length absorbing case that is inserted through a wire harness routed on a slide seat mounted on a vehicle on the floor side, and a slider having an upper surface opening provided in the surplus length absorbing case. In the wire harness routing device for the slide sheet, in which the wire harness is inserted into the guide hole and the slider interlocking with the slide sheet is slidably mounted,
A shield band made of a belt or a link plate is connected to the front and rear of the slider, and a guide groove is provided along the lower surface of each side of the slider guide hole to slidably hold both sides in the width direction of the shield band. In addition, a wire harness routing device for a slide sheet is provided in which the slider guide hole is closed at the center of the shielding band.

  A wire harness in which the extra length absorbing case is installed in parallel to the side of a seat rail that slidably fits a wheel held by an axle projecting from the lower part of the seat of the slide seat, and is pulled out from the slider by the axle or seat The wire harness that interlocks the slider with the movement of the slide sheet, bends through the slider from the upper side to the lower side and passes through the extra length absorption case, absorbs the extra length when the slide sheet moves back and forth. The extra length of the wire harness is absorbed by adjusting the amount of detour in the case.

  When the slider moves in conjunction with the back-and-forth movement of the slide sheet, the shielding band connected to the slider also moves back and forth while closing the lower surface of the guide hole. As a result, the guide hole in the central portion of the shielding band material that is not blocked by the slider is closed, and the entire length of the slider guide hole in the upper surface opening is closed by the shielding band material and the slider. It is possible to prevent mixing in the extra length absorption case. As a result, it is possible to reliably prevent the slider from moving due to foreign matter mixing or the occurrence of disconnection.

Specifically, the extra length absorbing case has a J-shape in which a linear rail portion and a turn portion having a circular arc portion on the front end side are continuous with a front end or a rear end of the rail portion and are shallow. The lid is horizontally placed with a lid on the bottom body, the slider guide hole is provided in the rail portion of the lid, and
The shielding strip is an annular belt made of resin or rubber, and the upper and lower portions of the annular belt extend to the full length of the front and rear linear portions including the rail portion and the turn portion of the extra length absorbing case. And a configuration in which the front and rear ends of the annular belt are wound in an arc shape along the upper and lower arc portions provided in the extra length absorbing case, and the slider guide hole is closed at the center in the width direction of the upper portion of the annular belt. It is said.

  It is preferable that the wire harness that is pulled out from the slider into the extra length absorption case and is turned and inserted through the extra length absorption case is covered with a corrugated tube or a caterpillar type exterior material.

Alternatively, the extra length absorbing case has a shape having a linear rail portion and a pair of front and rear turn portions continuous to the front end and the rear end of the rail portion, and is placed horizontally with a cover on the shallow body. The slider guide hole is provided in the rail portion of the lid,
The shielding strip is a link plate that is rotatably connected to a plastic link, and is connected with the slider interposed between the links to be connected, and slides on both sides of the link plate in the width direction. A guide groove that is freely held may be provided continuously along the lower surfaces on both sides of the slider guide hole and the peripheral edge of the front and rear turn portions, and the slider guide hole may be closed at the center in the width direction of the link plate. Good.

  Each link may be provided with a holding clip for a wire harness or a fastening band for the wire harness, and a wire harness that is pulled out from the slider into the extra length absorbing case may be attached to the link plate with the holding clip or the fastening band. Or you may coat | cover with a corrugated tube or a caterpillar type exterior material, without hold | maintaining a wire harness with a link plate.

  The surplus length absorbing case fixed to the floor side along the seat rail for the slide seat may be arranged such that the upper surface of the rail portion is arranged along the seat rail, and the turn portion continuous to the rail portion is horizontally arranged. Alternatively, it may be arranged vertically downward.

  As described above, according to the present invention, since the shield belt member made of the annular belt or the link plate is connected to the slider interlocked with the slide sheet, the slider is moved and the wire harness drawn out from the slider is inserted. The slider guide hole can be closed with a shielding band member, and foreign matter can be prevented from entering the extra length absorption case through the slider guide hole. Therefore, smooth movement of the slider can be ensured, and damage to the wire harness penetrating the slider and occurrence of disconnection can be reliably prevented.

It is a perspective view which shows 1st Embodiment of the wire harness wiring apparatus of this invention. It is the II-II sectional view taken on the line of FIG. (A) is a perspective view of a surplus length absorbing case, and (B) is a perspective view of a slider slidably fitted in the surplus length absorbing case. It is principal part sectional drawing of FIG. It is a disassembled perspective view of the said extra length absorption case. (A) is a perspective view of an assembly of an annular belt, a slider and a rail material, and (B) is a perspective view of a main part in a state where the assembly is assembled to a main body. The modification of 1st Embodiment is shown, (A) is a disassembled perspective view of a surplus length absorption case, (B) is a partially expanded perspective view of a surplus length absorption case. It is principal part sectional drawing of the said modification. It is a disassembled perspective view of the surplus length absorption case of 2nd Embodiment. (A) is a top view of the link which comprises the link plate of the structural member of the said 2nd Embodiment, (B) is a partial front view of a link plate. It is explanatory drawing which shows the connection part of a link plate and a slider. It is principal part sectional drawing of a surplus length absorption case. The operation of the second embodiment is shown, (A) is a schematic plan view showing the position of the link plate when the slide sheet is at the rearmost end position, and (B) is the outline showing the position of the link plate when the slide sheet is at the frontmost end position. It is a top view. The modification of 2nd Embodiment is shown, (A) is a front view of a link, (B) is a perspective view which shows the state holding the wire harness with a fastening band. A prior art example is shown, (A) is a perspective view of a surplus length absorption case, (B) is a principal part top view of (A).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of the present invention.
FIG. 1 shows a sheet feeding wire harness 2 branched from a floor harness routed along a floor panel 70 in order to feed power to an electrical component (not shown) mounted on a slide seat 1 mounted on the automobile shown in FIG. 2, a seat harness 72 routed to the slide seat 1 through the surplus length absorbing case 10 disposed on the lower surface of the passenger compartment floor (mall) 71 and wired inside the seat of the slide seat 1, The connectors C1 and C2 are connected on the lower surface of the sheet.

  As shown in FIG. 2, the surplus length absorbing case 10 is arranged in parallel with a seat rail 7 that slidably fits a wheel 6 b supported on an axle 6 a protruding from the lower surface of the slide seat 1, and a molding 71. It is installed on the lower surface of.

  As shown in FIG. 3, the surplus length absorbing case 10 has a J-shape in which a linear rail portion 10a and a turn portion 10b having a circular arc portion at the front end are connected to the front end of the rail portion 10a. It is arranged. The extra length absorbing case 10 is made of a resin molded product, and is configured to cover the cover 12 after the wire harness 2 is inserted into the main body 11 having a shallow bottom. The upper surface of the lid 12 has a honeycomb structure provided with a number of grooves 12a in order to increase the strength when stepped on by a passenger.

  A slider guide hole 15 (hereinafter abbreviated as “guide hole 15”) is formed in the rail portion of the lid 12 so as to extend over the entire length in the front-rear direction. The guide hole 15 fits the slider 20 slidably. As shown in FIG. 3B, the slider 20 has a rectangular tube shape in which a horizontal tube portion 20b is refracted at a lower portion of the vertical tube portion 20a. Both ends of the hollow portion 20c of the slider 20 are opened to the upper surface and the lower front end surface, and the wire harness 2 is inserted into the slider 20 through the opening. The wire harness 2 drawn out from the upper surface opening 20d is connected to the seat harness 72 of the slide seat 1, and the corrugated tube 8 is sheathed on the wire harness 2 drawn out from the lower front end opening 20e and passed through the extra length absorbing case 10. An opening is provided at the tip of the other linear portion of the turn portion 10b of the extra length absorbing case 10, the wire harness 2 is pulled out to the floor side through the opening, and is fixed to the vehicle body panel by a clip at the pulling position.

  A portion 20 f where the horizontal cylinder portion 20 b continues to the lower surface of the vertical cylinder portion 20 a of the slider 20 is slidably fitted into the guide hole 15. Specifically, the left and right side surfaces of the portion 20 f of the slider 20 are brought into sliding contact with the left and right side surfaces of the guide hole 15 so that the slider 20 can move in the guide hole 15 in conjunction with the back and forth movement of the slide sheet 1. The guide hole 15 that is not blocked by the slider 20 opens, but the guide hole 15 is covered from the lower surface with a shielding band made of a resin or rubber annular belt 30 that is connected to the slider 20 and moves together with the slider 20. ing. In this way, the opening of the guide hole 15 where foreign matter may be mixed is covered with an annular belt 30 interlocked with the slider 20 as shown in FIG.

  The length of the upper part 30a and the lower part 30b of the annular belt 30 is the same length as the total length of the front and rear straight line parts including the rail part 10a and the turn part 10b of the extra length absorption case 10. In addition, as shown in FIGS. 5 and 6, the front and rear ends 30 c and 30 d of the annular belt 30 are wound in an arc shape along the upper and lower arc portions 16 A and 16 B provided at the front and rear ends of the extra length absorbing case 10. A part of the upper part 30a of the annular belt 30 is divided, and both ends of the divided part are fixed to the front and rear upper surfaces of the horizontal cylinder part 20b of the slider 20 with stoppers 33. In this way, the slider 20 and the annular belt 30 are connected to each other, and the guide hole 15 is closed on the lower surface side at the center in the width direction of the upper portion 30a of the annular belt 30 interlocking with the slider 20.

  As shown in FIG. 5, the surplus length absorbing case 10 includes a main body 11, a lid 12, a lower cover 17 attached to the lower surface of the main body 11, and a rail member 18 that guides the annular belt 30. On the peripheral wall 11b of the main body 11, a lock frame 11c for locking with a lock piece 12c provided on the peripheral wall 12b of the lid 12 is provided. And the bottom face of the main body 11 corresponding to the arrangement | positioning location of the annular belt 30 is made into the opening 11h as shown in FIG.6 (B). With the connecting piece 17a protruding from the periphery of the lower cover 17 engaged with the peripheral wall 11b of the main body 11, the lower cover 17 opens the insertion space of the lower portion 30b of the annular belt below the opening 11h. It is closed.

  As shown in FIG. 4, the rear half of the rail member 18 is provided with L-shaped support pieces 18b and 18c provided with a pair of guide grooves 18m1 and 18m2 in the width direction. The front half includes a support piece 18e extending continuously forward to the outer support piece 18b, and a guide groove continuing to the guide groove 18m1 is provided in the support piece 18e. Both sides of the annular belt 30 in the width direction are inserted and held in a pair of guide grooves 18m1 and 18m2 in the width direction of the rail member 18, and the annular belt 30 is slidable in the front-rear direction as the slider 20 moves. To guide.

  As shown in FIG. 6, the rail member 18 is assembled to the annular belt 30 connected to the slider 20 and is assembled to the main body 11. The main body 11 is provided with upper and lower circular arc portions 16A and 16B at the rear end of the rail portion 10a and the front end of the turn portion 10b linearly continuous with the rail portion 10a. As shown in FIG. 6B, the front and rear ends 30c and 30d of the annular belt 30 are wound around the upper and lower arc portions 16A and 16B.

  As described above, the rail member 18 is attached to the annular belt 30 and assembled to the main body 11. After that, the lower cover 17 is attached to the main body 11, the wire harness 2 is inserted into the main body 11, and then the lid 12 is assembled. Yes. The structure shown in the cross-sectional view of FIG. 4 is assembled in this way. That is, both sides in the width direction of the upper portion 30a of the annular belt 30 are slidably supported by the guide grooves 18m1 and 18m2 of the rail member 18, and the lower portion 30b continuous at the front and rear ends 30c and 30d is closed by the lower cover 17. It is slidably disposed in the opening 11h on the bottom surface of the. As a result, the annular belt 30 connected to the slider 20 circulates in conjunction with the slider 20 and can reliably block the guide hole 15 from the lower surface side.

  In the embodiment, the wire harness 2 inserted into the extra length absorption case 10 is packaged with the corrugated tube 8, but may be packaged with a caterpillar type protector described in Patent Document 2. In addition, the seat harness housed in the slide seat 1 is pulled out below the seat, inserted into the extra length absorbing case 10 through the slider 20, inserted into the extra length absorbing case 10, and then pulled out to the floor side. The floor harness and the connector may be connected on the side. Furthermore, the surplus length absorbing case 10 may have a turn portion continuous to the rear end of the rail portion, and the J shape may be reversed forward and backward.

7 and 8 show a modification of the first embodiment.
In the modified example, the rail material of the extra length absorbing case is made different, the lower cover is eliminated, and guide grooves 42A and 42B for inserting the both sides in the width direction of the annular belt 30 between the lid 12 and the main body 11 are provided. Is different.
As shown in FIG. 7A, the surplus length absorbing case 10B is assembled by a main body 11, a lid 12, a rail member 18B, and a pair of rollers 40 that are rotatably mounted on front and rear ends of the rail member 18B. . The rail member 18B has a long belt-like bottom portion 18i assembled with a belt insertion space 18j in the lower portion of the bottom surface of the main body 11, and arc frames 18k provided at both front and rear ends.

  As shown in FIG. 7B, the rollers 40 are rotatably attached to the arc frames 18k at the front and rear ends of the rail member 18B by shafts 40a. The front and rear ends of the annular belt 30 are wound around the roller 40 and accommodated in the arc frame 18k. As shown in FIG. 8, both sides of the upper portion 30a of the annular belt 30 in the width direction are slidably inserted into the guide grooves 42A and 42B, and the lower portion 30b is inserted between the bottom surface of the main body 11 and the bottom portion 18i of the rail member 18B. It passes through the belt insertion space 18j.

  Other configurations are the same as those of the first embodiment, and the operational effects are also the same as those of the first embodiment. That is, the upper portion 30a of the annular belt 30 is connected to the slider, the guide belt 15 is closed from the lower surface by the annular belt 30 interlocked with the slider, and foreign matter is prevented from entering the excess length absorbing case 10B through the guide hole 15. ing.

9 to 12 show a second embodiment.
In the second embodiment, the shielding band member that closes the guide hole on which the slider slides is formed on the lower surface side, and the shape of the extra length absorbing case 10C is made different.

As shown in FIG. 9, the extra length absorbing case 10 </ b> C has a shape in which a pair of front and rear turn portions 10 b-1 and 10 b-2 are continuous with the front end and the rear end of the linear rail portion 10 a and is horizontally arranged. The surplus length absorbing case 10C comprises a shallow main body 11 and a lid 12, and, as in the first embodiment, a guide hole 15 for fitting the slider 20 to the rail portion 10a of the lid 12 so as to be slidable in the front-rear direction. Is provided.
Note that the upper surface of the lid 12 does not have a honeycomb structure, but may have a honeycomb structure as in the first embodiment.

  The link plate 50 used as the shielding band member is rotatably connected to the resin-made links 51 shown in FIGS. 10A and 10B, and the turn portions 10b-1 on both the front and rear sides of the surplus length absorbing case are sequentially connected. 10b-2 is a link plate that can be deformed along the arc portion at the tip. The link 51 to be sequentially connected is made of a substantially oval shaped substrate. One side 51b of the central portion 51a has a bottom surface cut out and a bearing boss 51d is projected, and the other side 51c has a top surface cut out and a pin 51e is projected. ing. The pin 51e of one adjacent link 51 is rotatably fitted and connected to the other bearing boss 51d. Furthermore, the holding clip 52 which holds a wire harness from the both sides of the width direction of the center part 51a of the link 51 is protrudingly provided. Note that a fastening band may be provided in place of the holding clip 52.

  As shown in FIG. 11, the link plate 50 in which the links 51 are axially and rotatably connected to each other has a slider 20 interposed between the links 51 -A and 51 -B to be connected. The lower surfaces of the links 51-A and 51-B are fixed to both front and rear sides of the upper surface of the lower sideways cylindrical portion 20b. And the wire harness 2 pulled out from the front-end opening of the horizontal cylinder part 20b is clamped by the holding clip 52 which protrudes from the link 51. Accordingly, the link plate 50 is interlocked with the movement of the slider 20, and the wire harness 2 pulled out from the slider 20 is moved in the surplus length absorbing case 10 </ b> C in conjunction with the link plate 50. In addition, the wire harness 2 held by the link plate 50 is pulled out from the opening 10h provided in the front turn portion 10b-1 to the floor side. As described above, the wire harness 2 is held by the link plate 50 connected to the front side of the slider 20, but the wire harness is not attached to the link plate 50 connected to the rear side, and only the function of closing the guide hole 15 is provided. Is granted.

  As shown in FIG. 12, U-shaped guide grooves 12 m-1 and 12 m-2 are provided in the lower part of both side surfaces of the guide hole 15 in the rail portion of the lid 12, and the guide grooves are formed on both sides in the width direction of the link plate 50. 12m-1 and 12m-2 are slidably fitted. Guide grooves continuing to the guide grooves 12m-1 and 12m-2 are also provided on the lower surfaces of the front and rear turn portions 10b-1 and 10b-2 continuing to the rail portion of the lid 12 along the peripheral wall 12b. As described above, the guide groove of the link plate 50 is provided in the entire length of the peripheral wall 12b because the link plate 50 is connected to the peripheral wall of the rear turn portion 10b-2 at the rear end position of the slide sheet shown in FIG. This is because the link plate 50 shifts to the entire length of the peripheral wall of the front turn portion 10b-1 at the front end position of the slide seat shown in FIG.

Other configurations and operational effects are the same as those of the first embodiment, and the link plate 50 moves in conjunction with the movement of the slider 20, so that the rearmost position shown in FIG. In any position up to the front end position, the guide hole 15 can be closed with the link plate 50 on the lower surface side. Accordingly, foreign matter from the guide hole 15 can be prevented.
Further, since the wire harness 2 is sandwiched and moved by the holding clip 52 protruding from the link plate 50 in the extra length absorbing case 10C, it is not necessary to use a corrugated tube or a caterpillar type protector, and the number of parts and There is an advantage that the number of work can be simplified.

FIG. 14 shows a modification of the second embodiment.
In the link plate 50 of the second embodiment, a fastening band 60 that is attached to the wire harness is projected from the center of the link 51B. As shown in FIG. 14 (A), the fastening band 60 has a fastening body 60a protruding from one end in the width direction of the central portion of the link 51B, and a band body 60b provided with a locking groove 60m from the other end in the width direction. 14B, the band main body 60b of the fastening band 60 is wound around the wire harness 2, fastened by the fastening portion 60a, and the wire harness 2 is held by the link plate 50. As shown in FIG. Since other configurations are the same as those of the second embodiment, description thereof is omitted.
In addition, it may replace with a fastening band and may provide a holding clip similarly to the said embodiment, and may hold | maintain a wire harness.

  In the second embodiment, the link plate does not hold the wire harness, and the link plate has only a function of closing the guide hole by connecting to the slider, and the wire harness of the extra length absorbing case 10 is a corrugated tube or a caterpillar type. You may armor with a protector.

DESCRIPTION OF SYMBOLS 1 Slide sheet 2 Wire harness 10 Extra length absorption case 11 Main body 12 Cover 12m-1, 12m-2, 42A, 42B Guide groove 20 Slider 30 Annular belt 50 Link plate

Claims (4)

A surplus length absorption case for inserting a wire harness routed in a slide seat mounted on a vehicle is installed on the floor side, and the wire harness is passed through a guide hole for a slider in an upper surface opening provided in the surplus length absorption case. In addition, in the wire harness routing device for a slide sheet, which is slidably mounted with a slider that interlocks with the slide sheet,
A shield band made of a belt or a link plate is connected to the front and rear of the slider, and a guide groove is provided along the lower surface of each side of the slider guide hole to slidably hold both sides in the width direction of the shield band. A wire harness routing device for a slide seat, wherein the slider guide hole is closed at the center of the shielding strip. The surplus length absorbing case has a J shape in which a straight rail portion and a turn portion having a circular arc portion on the front end side are continuous with a front end or a rear end of the rail portion, and a cover is attached to a shallow main body. Is placed horizontally, the guide hole for the slider is provided in the lid, and
The shielding strip is an annular belt made of resin or rubber, and the upper and lower portions of the annular belt extend to the full length of the front and rear linear portions including the rail portion and the turn portion of the extra length absorbing case. In addition, the front and rear ends of the annular belt are wound in an arc shape along the upper and lower arc portions provided in the extra length absorption case, and the slider guide hole is closed at the center in the width direction of the upper portion of the annular belt. The wire harness routing device for a slide seat according to claim 1. The surplus length absorption case has a shape having a linear rail portion and a pair of front and rear turn portions continuous to the front end and the rear end of the rail portion, and is horizontally disposed with a cover placed on a shallow body. The guide part for the slider is provided in the rail part of
The shielding strip is a link plate that is rotatably connected to a plastic link, and is connected with the slider interposed between the links to be connected, and slides on both sides of the link plate in the width direction. Freely holding guide grooves are provided continuously along the lower surfaces on both sides of the slider guide hole and along the periphery of the front and rear turn portions, and the slider guide hole is closed at the center in the width direction of the link plate. The wire harness routing device for a slide seat according to claim 1.   A holding clip for a wire harness or a fastening band for a wire harness is provided on each link, and a wire harness that is pulled out from the slider into the extra length absorption case is attached to the link plate by the holding clip or the fastening band. 4. A wire harness routing device for a slide sheet according to 3.

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