JP5800608B2 - Harness wiring device - Google Patents

Description

  The present invention relates to a harness routing device for routing a harness across, for example, an automobile floor and a slide seat.

  An electronic device such as a seating sensor for detecting whether or not an occupant is seated is attached to a slide seat of the automobile. For this reason, various harness routing devices that route harnesses across the floor and the slide seat have been used in automobiles provided with a slide seat (see, for example, Patent Document 1).

  FIG. 6 is a plan view showing a conventional harness routing device used in an automobile. FIG. 7 is a plan view for explaining a problem in the harness routing device shown in FIG. 6, and is a diagram showing a state in which the extra length portion of the harness housed in the case interferes.

  As shown in FIG. 6, the harness routing device 301 includes a harness 10 having an electric wire 12 and a corrugated tube 11 that protects the electric wire 12, and a rail 2 that is formed in a long cylindrical shape and has a slit 21 formed on the upper surface. And a support body 3 that is slidably attached to the rail 2 and supports the slide sheet, and is slidably attached to the rail 2 and is provided in the rail 2 through an opening 20 provided at one end in the longitudinal direction of the rail 2. A protector 4 that holds the pulled-in harness 10 and leads the harness 10 from the slit 21, and a case 306 that is placed along the side wall of the rail 2 and that the extra length of the harness 10 is bent in a U-shape. Then, the harness 10 led out of the rail 2 from the opening 20 is folded back 180 degrees in a U shape so that the harness 10 is opened in the opening 36 of the case 306. And it includes a guide portion 305 for guiding, to the.

  The support 3 includes a seat mounting portion 31 that is positioned outside the rail 2 and to which the slide seat is mounted, and a slide portion 32 that is positioned in the rail 2. The protector 4 is connected to the support 3.

  The case 306 has a bottom wall 362, an upper wall 361, a pair of side walls 363, 364, a back wall 366, and an opening 365 into and out of the harness 10, and is formed in a rectangular shape. . The pair of side walls 363 and 364 extend straight in parallel with the rail 2 (in the direction of arrow Z) and are arranged in opposite directions in the width direction of the rail 2 (in the direction of arrow X). The opening 365 of the case 306 is positioned in the vicinity of the opening 20 at one end of the rail 2.

  The guide portion 305 has a guide groove 352 for guiding the harness 10 led out of the rail 2 from the opening 20 along the side wall 364 on the side away from the rail 2 in the case 306, and guides to the guide groove 352. A second guide groove 353 for drawing the harness 10 drawn into the case 306 and further folded back in a U shape in the case 306 to the outside of the case 306 and the guide portion 305 through the guide groove 352; Is provided.

  In the harness routing device 301 configured as described above, when the slide sheet and the support body 3 move in a direction away from the guide portion 305, the protector 4 moves in conjunction with the slide sheet and the support body 3, and the harness 10 is moved from the case 306. It is pulled out and pulled into the rail 2. Further, when the slide sheet and the support body 3 move in a direction approaching the guide portion 305, the protector 4 moves in conjunction with the slide sheet and the support body 3, and the harness 10 is pushed out of the rail 2 to enter the case 306. Pushed in.

JP 2010-193599 A

  However, in the conventional harness routing device 301 described above, the harness 10 may meander when the harness 10 is taken in and out of the case 306, and the harnesses 10 interfere with each other in the case 306 as shown in FIG. There was a problem that abnormal noise might be generated. Further, there is a problem that the harness 10 meanders when being taken in and out of the case 306, and the harness 10 may be caught by the case 306 or the guide portion 305 and not move smoothly.

  In addition, the following factors can be considered to meander when the harness 10 is taken in and out of the case 306 as described above. That is, an elastic restoring force that causes the bent corrugated tube 11 to return to a straight state is generated in the portion P1 that is the folded portion of the harness 10 shown in FIG. For this reason, in the P2 portion located in the vicinity of the P1 portion, the elastic restoring force acts so that the P2 portion follows the side wall 363, and in the P3 portion located on the opposite side of the P2 portion, the elasticity The restoring force acts so that the P3 portion is along the side wall 364. Further, the P7 portion of the harness 10 is along the side wall 364 by the guide of the guide groove 352, and the P6 portion is along the side wall 363 by the guide of the second guide groove 353. However, almost no force is exerted on the P4 portion between the P2 portion and the P6 portion and the P5 portion between the P3 portion and the P7 portion so that the portion is along the side walls 363 and 364. For this reason, it is considered that the aforementioned meandering of the harness 10 is likely to occur in the P4 portion and the P5 portion. Further, the P1 portion of the harness 10 and the portion positioned in the guide groove 352 are bent and wrinkled as a long time passes without the slide sheet being moved. It is considered that meandering of the harness 10 is caused by the portion with the bent wrinkles coming to the positions of P4 and P5 when the slide sheet moves.

  Therefore, an object of the present invention is to provide a harness routing device that can prevent meandering in the case when the harness is taken in and out of the case, and can prevent generation of abnormal noise and catching of the harness. To do.

In order to achieve the above-mentioned object, the invention described in claim 1 is attached to the rail in a slidable manner with the harness having a wire and a corrugated tube protecting the wire, a rail, and the harness attached. A protector and a case that accommodates the extra length portion of the harness bent in a U shape, and the case includes a bottom wall, an upper wall facing the bottom wall, and a pair of side walls, An opening portion that is surrounded by the bottom wall, the upper wall, and the pair of side walls and into which the harness is inserted and withdrawn, and a folded portion in an extra length portion of the harness bent into the U-shape is the protector Regardless of the sliding position, the side wall of the folded portion excluding the folded portion in the extra length portion does not follow the wall of the case except the bottom wall and the upper wall. The harness wiring apparatus, which is provided along the pair of side walls by the elastic restoring force of the gate tube, said case is disposed along said rail, sidewall remote from the rail of the pair of side walls, The harness routing device is configured by a curved surface protruding outward from the case.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, both of the pair of side walls are formed of curved surfaces that protrude outward from the case. is there.

The invention described in claim 3 is the invention described in claim 1 or 2, wherein the harness is passed from one end of the rail into the rail and provided on the upper surface of the rail. The opening is led out of the rail from a slit , the opening is positioned in the vicinity of one end of the rail, and the harness led out of the rail from one end of the rail is folded back in a U shape. It further has a guide part for guiding a harness to the opening of the case.

  The invention described in claim 4 is characterized in that, in the invention described in claim 3, the guide portion guides the harness along the side wall of the case that is away from the rail. Is.

  The invention described in claim 5 is the invention described in claim 3 or 4, wherein the harness is disposed in the vicinity of the opening in the case, and the side wall of the case on the side away from the rail. A guide wall positioned between the two is provided.

  According to the first aspect of the present invention, at least one of the pair of side walls is formed of a curved surface that protrudes outward from the case. The side part or one side part of the folded part bends along the curved surface, and the stress to be along the curved surface on both side part or one side part of the folded part, that is, the bent corrugated tube is in a straight state. An elastic restoring force to return is generated. Further, the curvature when the extra length portion of the harness is bent in a U shape in the case is distributed to the folded portion and the portion along the curved surface. Therefore, it is possible to provide a harness routing device that can prevent meandering in the case when the harness is taken in and out of the case, and can prevent generation of abnormal noise and catching of the harness.

  According to the invention described in claim 2, since both of the pair of side walls are formed of curved surfaces that protrude outwardly from the case, the folded portions excluding the folded portions in the extra length portion of the harness. The portions on both sides of the bent portion are bent along the curved surface, and the stress that tends to follow the curved surface, that is, the elastic restoring force that the bent corrugated tube returns to the straight state is generated on the portions on both sides of the folded portion. . Further, the curvature when the extra length portion of the harness is bent in a U shape in the case is distributed over the entire extra length portion. Therefore, it is possible to provide a harness routing device that can prevent meandering in the case when the harness is taken in and out of the case, and can prevent generation of abnormal noise and catching of the harness.

  According to the invention described in claim 3, the harness is passed through the rail from one end of the rail and led out of the rail from a slit provided on the top surface of the rail, A case is disposed along the rail, and the opening is positioned in the vicinity of one end of the rail, and the harness led out of the rail from one end of the rail is folded back in a U shape. A harness routing device capable of reducing the size in the longitudinal direction and preventing the harness from being caught, since the guide further guides the harness to the opening of the case. Can do.

  According to the invention described in claim 4, since the guide portion guides the harness along the side wall of the case that is away from the rail, the guide portion is led out of the rail from one end portion of the rail. The harness is bent so as to draw an ellipse by the guide portion and the case. Therefore, a harness routing device that can prevent the harness from being caught can be provided.

  According to the fifth aspect of the present invention, a guide wall is provided in the vicinity of the opening in the case between the harness and the side wall on the side away from the rail in the case. The harness can be surely placed along the side wall away from the rail. Therefore, it is possible to provide a harness routing device that can prevent meandering in the case when the harness is taken in and out of the case, and can prevent generation of abnormal noise and catching of the harness.

It is a perspective view which shows the harness wiring apparatus concerning the 1st Embodiment of this invention. It is a top view of the harness wiring apparatus shown by FIG. It is sectional drawing along the AA line in FIG. It is a top view which shows the harness wiring apparatus concerning the 2nd Embodiment of this invention. It is a top view which shows the harness wiring apparatus concerning the 3rd Embodiment of this invention. It is a top view which shows the conventional harness wiring apparatus used for a motor vehicle. It is a top view explaining the problem in the harness wiring apparatus shown by FIG. 6, and is a figure which shows the state which the extra length part of the harness accommodated in the case interferes.

(First embodiment)
A harness routing device according to a first embodiment of the present invention will be described with reference to FIGS.

  The harness routing device 1 of the present invention shown in FIG. 1 includes a harness extending over a floor 14 (see FIG. 3) of a passenger compartment of an automobile and a slide seat provided slidably with respect to the floor 14. 10 is a device for routing. A mat 15 is laid on the floor 14 (see FIG. 3), and the slide sheet is disposed on the floor 14 and the mat 15 along the arrow Y direction. In addition, electronic devices such as a seating sensor for detecting whether or not an occupant is seated and a seatbelt sensor for detecting whether or not the seated occupant is wearing a seatbelt are attached to the slide seat. .

  As shown in FIG. 1, the harness routing device 1 includes a harness 10, a rail 2 formed in a long cylindrical shape and having a slit 21 formed on the upper surface, and a pair of moldings attached to the upper surface of the rail 2. 13 (see FIG. 3), slidably attached to the rail 2, and supported by the support 3 for supporting the slide sheet, slidably attached to the rail 2, and provided at one end in the longitudinal direction of the rail 2. The protector 4 that holds the harness 10 drawn into the rail 2 from the opening 20 and leads the harness 10 from the slit 21, and the side wall 25 b of the rail 2, the extra length portion of the harness 10 is The case 6 accommodated in a bent state and the harness 10 led out of the rail 2 from the opening 20 are folded back in a U shape so that the harness 10 is opened to the opening 6 of the case 6. And it includes a guide portion 5 for guiding, to the.

  Moreover, the arrow Z in FIG. 1 represents the sliding direction of the slide sheet, that is, the longitudinal direction of the rail 2. An arrow X in FIG. 1 represents the width direction of the rail 2. Moreover, the arrow Y in FIG. 1 represents the height direction and the vertical direction of the rail 2.

  The harness 10 includes a plurality of electric wires 12 and a corrugated tube 11 that accommodates the electric wires 12. The electric wire 12 is a well-known covered electric wire, and electrically connects the electronic device attached to the slide sheet and an electronic device such as an ECU (Electronic Control Unit) attached to the floor 14, that is, the vehicle body. The corrugated tube 11 is made of a synthetic resin such as polypropylene, and is formed into a bellows-like cylindrical shape in which small-diameter valleys and large-diameter ridges are alternately continuous. This electric wire 12 is protected.

  The rail 2 is obtained by cutting a long strip-shaped metal plate with a predetermined length and subjecting the cut metal plate to roll forming or the like. As shown in FIG. 3, the rail 2 includes a flat bottom wall 22 stacked on the floor 14 and a pair of standing walls 23 a erected from both ends in the width direction (arrow X direction) of the bottom wall 22. 23b, a pair of lower walls 24a, 24b extending in a direction away from the upper ends of the standing walls 23a, 23b and facing the floor 14, and ends of the lower walls 24a, 24b away from the standing walls 23a, 23b A pair of side walls 25a, 25b erected on the upper side from the respective portions, a pair of upper walls 26a, 26b extending from the upper ends of the side walls 25a, 25b toward each other and facing the lower walls 24a, 24b, and the upper walls 26a and 26b, a pair of inner walls 27a and 27b extending toward the bottom wall 22 from the respective end portions away from the side walls 25a and 25b. Further, the rail 2 has the same cross-sectional shape from one end to the other end in the longitudinal direction (arrow Z direction).

  Further, as described above, the pair of inner walls 27 a and 27 b are spaced from each other and spaced from the bottom wall 22. For this reason, a slit 21 is formed between the pair of inner walls 27a and 27b and opens to the upper surface side of the rail 2, that is, the slide seat side, and extends from one end portion to the other end portion in the longitudinal direction of the rail 2. ing. Further, on both sides of the slit 21 along the arrow X direction, a pair of spaces 28a surrounded by the lower walls 24a and 24b, the side walls 25a and 25b, the upper walls 26a and 26b, and the inner walls 27a and 27b described above. , 28b are formed. A space 29 is formed below the slit 21 and the pair of spaces 28a and 28b so that the slit 21 and the pair of spaces 28a and 28b communicate with each other.

  The pair of moldings 13 are respectively attached to the upper surface of the rail 2, that is, the outer surfaces of the pair of upper walls 26a and 26b. The pair of moldings 13 covers the slit 21 and prevents foreign matter from entering the rail 2.

  The support 3 is obtained by subjecting a metal plate to roll forming, pressing, welding, and the like. The support 3 is positioned outside the rail 2 and attached to the slide sheet, and the rail 2 includes In other words, the slide portion 32 is positioned in the pair of spaces 28 a and 28 b and the space 29. The seat attachment portion 31 is positioned in the passenger compartment through the opening 15a provided in the mat 15.

  The protector 4 is made of synthetic resin, and is slidably accommodated in an attachment portion (not shown) attached to the support 3 and one space 28a of the rail 2, as shown in FIG. 20, a harness holding portion 41 for holding the harness 10 drawn into the one space 28a, and an L-shaped cylinder extending from the harness holding portion 41, passing through the slit 21 of the rail 2 and the opening 15a of the mat 15. A lead-out portion 42 that protrudes toward the passenger compartment and guides the electric wire 12 to the slide seat through the electric wire 12 of the harness 10 is provided inside. Further, the harness holding portion 41 holds one end portion of the corrugated tube 11 of the harness 10. Further, the lead-out portion 42 passes the electric wire 12 drawn out from one end portion of the corrugated tube 11 attached to the harness holding portion 41 to the inside thereof. Further, both the support 3 and the lead-out portion 42 described above are passed through the opening 15 a of the mat 15. Moreover, the protector 4 attached to the support body 3 slides in the rail 2 in conjunction with the support body 3 and the slide sheet when the support body 3 slides.

  The case 6 is made of synthetic resin, and as shown in FIGS. 1 and 3, a flat bottom wall 62 overlaid on the floor 14, an upper wall 61 facing the bottom wall 62, and the bottom wall 62 An opening 65 surrounded by a pair of side walls 63 and 64 erected from both ends in the width direction (arrow X direction), a bottom wall 62, an upper wall 61, and a pair of side walls 63 and 64 and into and out of the harness 10. And a back wall 66 located on the opposite side of the opening 65. Such a case 6 is arranged such that the side wall 63 faces the side wall 25 b of the rail 2 and the opening 65 is positioned in the vicinity of the opening 20 at one end of the rail 2. Further, the pair of side walls 63 and 64 are formed of curved surfaces that protrude outward from the case 6. That is, the pair of side walls 63 and 64 are formed of curved surfaces that are convex in a direction away from each other. Moreover, the space | interval of the arrow X direction between a pair of side walls 63 and 64 becomes large gradually as it goes to the center part of the arrow Z direction from the opening part 65, and becomes the largest in the said center part. And it becomes small gradually as it goes to the back wall 66 from the said center part.

  The guide portion 5 includes a main body portion 51 made of synthetic resin and a plate-like cover portion 50 attached to the upper surface of the main body portion 51. In the main body 51, the harness 10 pulled out from the opening 20 to the outside of the rail 2, that is, out of the space 28 a, is folded back in a U shape so that the harness 10 extends along the side wall 64 away from the rail 2 of the case 6. A guide groove 52 to be guided, and the harness 10 guided in the guide groove 52 and drawn into the case 6 and further folded back in a U shape in the case 6 passes under the guide groove 52 and the case 6 and the guide portion. 5 and a second guide groove 53 led out to the outside. That is, the harness 10 led out of the rail 2 from one end of the rail 2 is bent by about 360 degrees so as to draw an ellipse by the guide portion 5 and the case 6. In the present invention, the harness 10 led out of the rail 2 from one end of the rail 2 is routed in this way, whereby the size of the harness routing device 1 in the longitudinal direction can be reduced, and the harness 10 can be caught. Can be prevented.

  Further, as shown in FIG. 2, the extra length portion of the harness 10 has a folded portion (Q1 portion) bent in a U shape on the pair of side walls 63 and 64 and the rear wall 66 regardless of the slide position of the protector 4. It is accommodated in the case 6 so that the portions (Q2 and Q3 portions) on both sides of the folded portion do not follow along the pair of side walls 63 and 64 by the elastic restoring force of the corrugated tube 11.

  As described above, in the present invention, both the pair of side walls 63 and 64 are formed of curved surfaces that protrude outward from the case 6, so that the folded portion in the extra length portion of the harness 10 (Q 1 portion in FIG. 2). 2 (Q2 and Q3 portions in FIG. 2) bend along the curved surfaces of the side walls 63 and 64, respectively, and the portions on both sides (Q2 and Q3 portions in FIG. 2) of the folded portions follow the curved surface. Stress, that is, an elastic restoring force for returning the bent corrugated tube 11 to a straight state. For this reason, the portions on both sides (the portions Q2 and Q3 in FIG. 2) of the folded portion stick to the side walls 63 and 64. Further, in the present invention, since both the pair of side walls 63 and 64 are formed of curved surfaces that protrude outward from the case 6, the extra length of the harness 10 is bent into a U shape within the case 6. Is distributed over the entire extra length portion.

  In the harness routing device 1 configured as described above, when the slide sheet and the support 3 move in a direction away from the guide portion 5, the protector 4 moves in conjunction with the slide sheet and the support 3, and the harness 10 moves from the case 6. It is pulled out and pulled into the space 28a of the rail 2. Further, when the slide sheet and the support body 3 move in a direction approaching the guide portion 5, the protector 4 moves in conjunction with the slide sheet and the support body 3, and the harness 10 is pushed out of the space 28 a of the rail 2 and the case 6. It is pushed in.

  In the present invention, when the harness 10 is taken in and out of the case 6 as described above, the Q2 and Q3 portions (see FIG. 2) of the harness 10 stick to the side walls 63 and 64 and do not meander in the case 6. Therefore, it is possible to prevent the harnesses 10 from interfering with each other in the case 6 to generate abnormal noise, and the harness 10 to be caught by the case 6 or the guide portion 5. Further, in the present invention, the curvature when the extra length portion of the harness 10 is bent in a U shape in the case 6 is dispersed throughout the extra length portion, that is, the extra length portion of the harness 10 is in the case 6. Therefore, the harness 10 can be smoothly moved.

(Second Embodiment)
A harness routing device according to a second embodiment of the present invention will be described with reference to FIG. In FIG. 4, the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  The harness routing device 101 of the present embodiment has the same configuration as the harness routing device 1 of the first embodiment, except that the case 106 is provided instead of the case 6 described above.

  The case 106 is made of synthetic resin, and includes a flat bottom wall 162 that is stacked on the floor, an upper wall 161 that faces the bottom wall 162, and both ends in the width direction (arrow X direction) of the bottom wall 162. An opening 165 that is surrounded by a pair of side walls 163 and 164, a bottom wall 162, an upper wall 161, and a pair of side walls 163 and 164, and in which the harness 10 is taken in and out, is located on the opposite side of the opening 165. And a back wall 166. Of the pair of side walls 163 and 164, the side wall 163 facing the rail 2 extends straight in parallel to the rail 2 (in the direction of arrow Z), and the side wall 164 away from the rail 2 is outside the case 106. Consists of a convex curved surface. Further, the interval in the arrow X direction between the pair of side walls 163 and 164 gradually increases from the opening 165 toward the center in the arrow Z direction, and is the largest in the center. And it becomes small gradually as it goes to the back wall 166 from the said center part.

  Further, the surplus length portion of the harness 10 is not folded along the pair of side walls 163 and 164 and the back wall 166 regardless of the sliding position of the protector 4 at the folded portion (R1 portion) bent in a U shape. Both side portions (R2 and R3 portions) are accommodated in the case 106 so as to be along the pair of side walls 163 and 164 by the elastic restoring force of the corrugated tube 11. Further, the R5 portion that is further away from the R1 portion than the R3 portion is along the side wall 163 by the guidance of the second guide groove 53. In addition, almost no force is exerted on the R4 portion between the R5 portion and the R3 portion so as to cause the portion to follow the side wall 163. However, since the R4 portion is less likely to move than the R2 portion and is not easily affected by bending wrinkles, the possibility that the R4 portion meanders is extremely low.

  Thus, in this invention, at least one should just be comprised by the curved surface which protrudes outward of the said case among a pair of side walls which comprise a case. Further, when only one of the pair of side walls is curved, as described above, the side wall 164 on the side away from the rail 2, that is, the side wall on which the part where the harness is frequently moved slides is curved. Is more preferable.

(Third embodiment)
A harness routing device according to a third embodiment of the present invention will be described with reference to FIG. In FIG. 5, the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted. The third embodiment is an embodiment corresponding to claim 5 of the claims.

  The harness routing device 201 of the present embodiment is the same as the harness routing device 1 of the first embodiment, except that a guide wall 67 is added in the vicinity of the opening 65 in the case 6 described above. It is a configuration. The guide wall 67 positions the harness 10 between the side wall 64 of the case 6 on the side away from the rail 2. With this guide wall 67, the harness 10 is reliably placed along the side wall 64 on the side away from the rail 2. Therefore, meandering in the case 6 when the harness 10 is put in and out of the case 6 can be prevented, and the generation of abnormal noise and the harness 10 can be prevented from being caught.

  In the above-described embodiment, the guide portion 5 and the cases 6 and 106 are formed separately. However, in the harness routing device of the present invention, the guide portion 5 and the cases 6 and 106 are integrally formed. May be.

  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.

DESCRIPTION OF SYMBOLS 1,101,201 Harness wiring apparatus 2 Rail 4 Protector 6,106 Case 10 Harness 11 Corrugated tube 12 Electric wire 61,161 Upper wall 62,162 Bottom wall 63,64,163,164 Side wall 65,165 Opening

Claims (5)

A harness having a wire and a corrugated tube that protects the wire, a rail, a protector that is slidably attached to the rail while the harness is attached, and a surplus portion of the harness bent into a U shape A case for accommodating in a state,
The case is surrounded by a bottom wall, an upper wall facing the bottom wall, a pair of side walls, the bottom wall, the upper wall, and the pair of side walls, and an opening through which the harness is taken in and out, Have
The folded portion in the extra length portion of the harness bent in the U-shape does not follow the wall of the case except the bottom wall and the upper wall regardless of the slide position of the protector, and the folded portion in the extra length portion. In the harness routing device provided so that the portions on both sides of the folded portion excluding, along the pair of side walls by the elastic restoring force of the corrugated tube,
The case is disposed along the rail;
Of the pair of side walls, a side wall away from the rail is formed of a curved surface protruding outward from the case. 2. The harness routing device according to claim 1, wherein both of the pair of side walls are formed of curved surfaces that protrude outward from the case. The harness is passed through the rail from one end of the rail and led out of the rail from a slit provided on the top surface of the rail;
Before SL openings are positioned near one end of the rail,
The guide further comprises a guide portion that folds the harness led out of the rail from one end of the rail into a U shape and guides the harness to the opening of the case. The harness routing device according to claim 2. The harness routing device according to claim 3, wherein the guide portion guides the harness along a side wall of the case that is away from the rail. The guide wall which positions the said harness in the vicinity of the said opening part in the said case between the side walls in the said case away from the said rail is provided in Claim 3 or Claim 4 characterized by the above-mentioned. The harness routing device described.

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