JP2012091530A - Wiring structure of harness for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To flatten a walk-through passage, and to protect a harness.SOLUTION: In an automobile which uses a clearance between a driver's seat and an auxiliary seat as a walk-through passage, a protector housing part which is recessed from above is formed so as to be opened in the fore-and-aft direction at a portion corresponding to the walk-through passage of a cross member which protrudes from a floor panel, a cable and/or the wiring harness which are wired in the fore-and-aft direction while straddling the cross member are externally fit with a protector which is arranged in the protector housing part, and the surface of a lid for closing an upper surface opening of a protector body and the upper surface of the cross member are made to be continuous to each other while making the surfaces as substantially the same horizontal surfaces.

Description

  The present invention relates to a wiring structure for a harness for an automobile, and more particularly, in a walk-through type automobile, the wire harness and cables arranged in a complicated manner on a floor panel below the walk-through path are prevented from being lifted and the walk-through path It is intended to flatten.

  When the walk-through passage is provided, the floor is preferably made as low as possible and flattened so as not to catch the passenger's foot. However, the walk-through passage has a step such as a cross member, and there are irregularities due to the cable and the wire harness exceeding the step.

Specifically, as shown in FIGS. 10A and 10B, a center tunnel 102 protruding from the surface of the floor panel 100 between the driver seat S1 and the passenger seat S2 extends in the vehicle front-rear direction. In addition, the cross member 103 that intersects the center tunnel 102 extends in the vehicle width direction.
The cross member 103 is provided to maintain the rigidity of the floor panel. The cross member 103 supports a load applied to the floor panel 100 from above and below and generates a resistance against an external force from the side of the floor panel. In order to increase the rigidity of the floor panel 100, it is desirable that the height of the cross member 103 from the floor panel 100 be as large as possible. On the other hand, in order to improve convenience and loadability as the walk-through type, it is preferable to make the height of the cross member 103 and the center tunnel 102 as low as possible.

When there is a foot-operated parking brake pedal BP in front of the driver seat S1, the parking brake cable 10 is disposed on the upper surface of the floor panel corresponding to the walk-through passage 105 between the driver seat S1 and the passenger seat S2 in the vehicle front-rear direction. Wired to
In many cases, the parking brake cable 10 is routed in the vehicle front-rear direction along the upper surface of the center tunnel 102, and is routed longitudinally along the upper surface of the cross member 103 that crosses the center tunnel 102. And in order to connect the electrical component arrange | positioned on the right and left of a vehicle, the wire harness 11 is often routed in the vehicle width direction along the rear vertical wall of the cross member 103.
When the automobile is assembled, the parking brake cable 10 is finally wired to the automobile. Therefore, the parking brake cable 10 is wired backward so as to straddle the upper surface of the cross member 103 and the wire harness 11. Further, the branch line 11B branches from the trunk line 11A at the center of the wire harness 11 in the vehicle width direction, and the branch line 11B runs through the upper surface of the cross member 103 and is routed along the upper surface of the center tunnel 102. There is also a case.

  When the parking brake cable 10 and the branch line 11B of the wire harness 11 get over the cross member 103, the parking brake cable 10 and the branch line 11B tend to swell greatly upward, which becomes an obstacle when the floor is lowered and flattened. Furthermore, since a load is applied to the parking brake cable 10 and the wire harness branch line 11B wired in the walk-through passage 105 from above by a step or a load, it is necessary to take protective measures.

  Conventionally, as a wire harness wiring structure on the surface of a floor panel, as shown in FIG. 11 in Japanese Patent Application Laid-Open No. 62-247951 (Patent Document 1), a harness W routed rearward from the bottom of an instrument panel is used as a center. The wiring is inserted into a groove provided on a flange on the upper surface or side surface of the heat duct 110 that is installed on the side of the tunnel 102 and is disposed across the cross member 103. The wiring structure prevents the carpet from being lifted by the harness.

  However, in the case of the walk-through type, if the heat duct 110 is provided at a position close to the center tunnel, it becomes a factor that hinders flattening of the floor. Therefore, it becomes difficult to form a wide flat surface, and the structure of Patent Document 1 cannot be adopted. In addition, this structure cannot be adopted when the specification has no heat duct.

JP-A-62-247941

  The present invention, in a walk-through type automobile, prevents the cable and wire harness that are routed in a complicated manner in the walk-through passage from being lifted and is flattened. The challenge is to be able to protect them.

In order to solve the above-mentioned problems, the present invention provides an automobile having a walk-through passage between a driver seat and a passenger seat.
A protector that accommodates a harness that crosses over a step protruding from the upper surface of the floor is provided, and the protector includes a stepped vertical portion that fits into a protector receiving groove that is recessed in the upper surface of the step, as the branch line accommodating portion. It has a trunk housing part that is continuous with the housing part,
The upper surface height of the step vertical portion of the protector and the trunk housing portion is equal to the upper surface height of the step to form a flat surface including a range where the protector straddles the step, and the bottom wall of the step vertical portion of the protector A wiring structure for an automobile harness is provided in which a clamp for fixing is projected.

  As described above, a protector that accommodates a harness that straddles the step of the part that hits the walk-through passage is provided, and the stepped vertical section of the protector is fitted and disposed in the protector receiving groove that is provided by recessing the upper surface of the step, and The flattening of the floor can be expanded by making the upper surface height of the step vertical portion of the protector and the upper surface height of the trunk housing portion continuous to the step vertical portion equal to the upper surface height of the step. Further, since the harness is held in the protector, the harness can be prevented from being lifted, and the harness can be kept in good condition. Moreover, even when a step or a load on the load is applied, the load can be received by the lid of the protector, and the harness can be protected.

The step comprises a cross member provided on the floor panel, and the protector receiving groove provided on the cross member comprises a recess opened in the front-rear direction.
The protector comprises a main body and a lid, the trunk line accommodating part disposed in the vehicle width direction along the rear vertical wall of the cross member, and a branch line accommodating part branched from the trunk line accommodating part and extending forward. A part of the branch line accommodating portion becomes the step vertical section, and includes a front bulging portion that protrudes forward from the step vertical section, and the step vertical section branches off from the main trunk of the harness. It is preferable that the branch line and the cable are wired in parallel.

  With the above configuration, the branch member and the cable branched from the trunk line of the wire harness and straddling the cross member can be crossed over the cross member while suppressing the spread in the height and width directions. In addition, since the protector has the same height as the stepped vertical section and the front bulge and the main line accommodating section that continue to the stepped vertical section that crosses over the cross member, the horizontal plane of the walk-through passage can be expanded and flattened. Can promote.

  The cross member extends in the vehicle width direction across the projecting portion of the center tunnel, the top surface of the center tunnel is located across the trunk line housing portion of the protector, the top surface and the top surface of the trunk line housing portion It is preferable that the height of the upper surface of the cross member is substantially equal.

When there is a recess or the like between the trunk line housing portion of the protector and the uppermost surface portion of the center tunnel, it is preferable that a support material is disposed in the recess to form a continuous flat surface.
If the protector is placed in the recess between the cross member and the center tunnel as described above, and the upper surface height of the protector is equal to the upper surface height of the cross member and the center tunnel on both sides, the horizontal plane can be expanded and flattening is promoted. it can. In addition, it is possible to store the intersection of the cable and the harness under a flat surface kept low by adopting a structure in which the cable is stored in the protector.

It is preferable that the protector is fixed by bringing the front and rear portions sandwiching the stepped vertical section into contact with the front and rear vertical walls of the step.
In other words, when the side walls of the front and rear protector bodies sandwiching the step vertical section of the protector are brought into contact with the front and rear vertical walls of the cross member that becomes the step, the step vertical section can be stably fixed in a state of being fitted in the protector receiving groove, A stable flat surface can be formed widely. In addition, the cable and the harness can be arranged with little variation, and the fit can be improved.

  It is preferable that the front bulge part of the branch line accommodating part of the protector is formed corresponding to a part where the height of the cross member becomes higher according to the step of the protruding part of the center tunnel.

  With this configuration, the swelled portion is formed using the generated surplus space while the flat surface is expanded together with the cross member provided to ensure rigidity, so that the space efficiency is extremely good.

It is preferable that the stepped vertical section of the protector is provided beside a seat mounting seat provided on the cross member.
By setting the height and the position to be connected to the highly rigid seat mounting seat, it is possible to satisfy both the height dimension for passing a part of the protector and the rigidity of the cross member. Further, it is possible to make it difficult to step on a protector whose rigidity tends to be relatively low.

As described above, the wiring structure of the automotive harness according to the present invention accommodates the wire harness and the cable over the step protruding from the floor panel at the portion corresponding to the walk-through passage in the protector, thereby preventing the upward protrusion. It can be prevented to be compact and the floor can be lowered. In addition, since the protector receiving groove is provided in a portion where the height of the step formed by the cross member is increased, the rigidity of the cross member can be maintained and the space efficiency is improved. Further, the flattened flat surface can be widened by making the upper surface height of the protector equal to the upper surface height of the step of the cross member.
Moreover, it is possible to protect against a load from above due to stepping or a load by covering a wire harness or cable with a protector.

1 is a schematic plan view of a front part of a passenger compartment of an automobile showing an embodiment of the present invention. FIG. 2 is an enlarged perspective view of an intersection between a cross member and a center tunnel in FIG. 1. It is a perspective view which shows the state which has arrange | positioned the protector in the part shown in FIG. (A) The perspective view of the said protector, (B) is a partially expanded perspective view of the lower surface of a protector. It is a schematic sectional drawing of the front-back direction of the motor vehicle which shows the relationship between a protector, a cross member, and a center tunnel. It is a schematic sectional drawing of the vehicle width direction of the motor vehicle which shows the height of a protector and a cross member. It is a schematic explanatory drawing which shows the state which attached the protector to the cross member. The hole for latch release of a clamp is shown, (A) is a top view seen from the upper part of a lid, and (B) is a schematic perspective view. The modification of a clamp is shown, (A) is a front view of a locked state, (B) is a perspective view, (C) is an explanatory view at the time of releasing a lock with a jig for release. (A) is a schematic plan view which shows a prior art example, (B) is a principal part side view which shows a problem. It is a perspective view which shows another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the vehicle according to the embodiment is a walk-through type vehicle in which a center console is not disposed between the driver seat S1 and the passenger seat S2, and a walk-through passage 5 in which an occupant can move is provided. Become.
A cross member 3 straddling the center tunnel 2 protrudes from the reference floor surface 1a of the floor panel 1 as a step at a portion to be the walk-through passage 5. That is, the center tunnel 2 extends in the vehicle longitudinal direction, the cross member 3 extends in the vehicle width direction across the center tunnel 2, and the cross member 3 is crossed at the intersection of the cross member 3 and the center tunnel 2. 3 crosses over the center tunnel 2.

  As shown in FIG. 2, the center tunnel 2 is raised in a stepped manner from the floor panel reference floor surface 1a when viewed in the vehicle width direction, and the upper surface 2a at the center in the vehicle width direction of the center tunnel 2 is placed on the driver seat S1. Is located below the walk-through passage 5 between the passenger seat S2 and the passenger seat S2. A stepped shape having an upper inclined surface 2b, a lower step surface 2c, and a lower inclined surface 2d is formed between the left and right side edges of the center upper surface 2a of the center tunnel 2 and the floor panel reference floor surface 1a. Further, the upper surface 2 a at the center of the center tunnel 2 has the upper surface 2 a-1 behind the portion intersecting the cross member 3 as the highest surface.

  The height of the upper surface of the cross member 3 extending in the vehicle width direction is substantially equal. That is, the central upper surface 3a over which the cross member 3 extends over the upper surface 2a of the center tunnel 2 is set so that the height from the upper surface 2a of the center tunnel 2 is low, and the portion where the center tunnel 2 is inclined downward and the portion where there is no center tunnel 2 On the upper surface 3b on both sides in the vehicle width direction, the amount of protrusion from the floor panel 1 is made large and substantially equal to the height of the central upper surface 3a. The upper surfaces 3b on both sides serve as seat mounting seats, and seat rails 7 are fixed as shown in FIG. A driver seat S1 and a passenger seat S2 are attached to the seat rail 7 so as to be slidable back and forth.

  As shown in FIGS. 2 and 6, a protector housing groove 15 for housing and arranging the protector 20 for wire harness exterior is provided between one end of the central top surface 3 a of the cross member 3 and the top surface 3 b on one side. The position of the protector receiving groove 15 is on the side of the seat mounting seat of the passenger seat S2. Therefore, the protector housing groove 15 is covered with the passenger seat S2 installed on the seat mounting seat, and is in a position where the passenger is hardly stepped on.

  The protector receiving groove 15 is formed by recessing the upper surface of the cross member 3 and extending in the vehicle front-rear direction, with both front and rear ends being open. The protector receiving groove 15 is a relatively shallow trapezoidal depression, and the height of the rear vertical wall 3c and the front vertical wall 3d of the cross member 3 protruding from the upper inclined surface 2b and the lower step surface 2c on one side of the center tunnel 2 is as follows. It is relatively high and has rigidity.

  A part of a protector 20 (a stepped vertical portion 22a described later) is fitted into the protector receiving groove 15. The protector 20 includes a main body 20a and a lid 20b. The lid 20b of the protector 20 is separated from the main body 20a and is locked.

  As shown in FIG. 3 and FIG. 4, the protector 20 includes a trunk line accommodating part 21 disposed in the vehicle width direction along the rear vertical wall 3 c of the cross member 3, and branches forward from the trunk line accommodating part 21. It is made into the substantially L shape which consists of the branch line accommodating part 22 to do. A portion branched from the trunk line accommodating portion 21 in a substantially perpendicular direction is defined as the stepped vertical section 22a, and a portion extending forward from the stepped vertical section 22a is defined as a front bulging portion 22b.

  The trunk line accommodating portion 21 of the protector 20 along the rear vertical wall 3c of the cross member 3 has a shape having a step with its bottom surface along the upper surface 2a, the upper inclined surface 2b, and the lower step surface 2c of the center tunnel 2. Thus, the main body 20a of the trunk line accommodation part 21 has the left and right sides in the vehicle width direction as deep bottoms from the center part, and the one side trunk line accommodation part 21 from which the branch line accommodation part 22 branches has a deep bottom (depth d2). Yes. Therefore, as shown in FIG. 7, when the stepped vertical section 22a of the branch line accommodating section 22 of the protector 20 is fitted and attached to the protector accommodating groove 15, the main body accommodating section 21 on the rear side of the stepped vertical section 22a. The side wall 21 b is in contact with the rear vertical wall 3 c of the cross member 3.

  The front / rear length of the step vertical portion 22a of the protector 20 is equal to the front / rear length of the protector receiving groove 15, and the depth d1 of the step vertical portion 22a is a front bulging portion 22b extending forward from the step vertical portion 22a. The depth d3 and the depth d2 of the trunk line accommodating portion 21 are shallower. That is, the depth of the protector 20 is d1 <d3 ≦ d2. Therefore, as shown in FIG. 7, the rear side wall 22 b-1 of the front expansion portion 22 b is in contact with the front vertical wall 3 d of the cross member 3. As a result, when the step vertical portion 22a of the protector 20 is fitted into the protector receiving groove 15 of the cross member 3, both the front and rear sides abut against the front and rear vertical walls of the cross member 3, so that the step vertical portion 22a is stably supported. ing.

  The protector 20 has the trunk line accommodating portion 21 disposed along the rear vertical wall 3c of the cross member 3 and the stepped vertical section 22a of the branch line accommodating portion 22 is fitted and disposed in the protector accommodating groove 15 in the attached state. The upper surface position (that is, the upper surface position of the lid 20b) is substantially the same height, and the height is the same as that of the upper surfaces 3a and 3b of the cross member 3. Further, as shown in FIG. 5, the uppermost surface 2 a-1 of the center tunnel 2 has the same height, and a support member 40 is disposed between the upper surface 2 a-1 and the trunk line accommodating portion 21 of the protector 20. . Further, a support member 41 is also arranged in front of the cross member 3 which is located below the walk-through passage 5 to widen the flat surface having the same height. In addition, a floor carpet F is laid on the upper surface of the cross member 3, the protector 20, the center tunnel 2, and the support members 40 and 41 having substantially the same height to form a continuous flat surface.

  Fixing means to the cross member 3 is provided in the trunk line accommodating part 21 and the branch line accommodating part 22 of the protector 20. On the branch line accommodating part 22 side, a clamp 23 projects downward from the bottom wall of the main body 20a of the stepped vertical part 22a, and as shown schematically in FIG. 6, on the bottom surface of the protector accommodating groove 15 of the cross member 3. It is inserted and locked into the drilled locking hole 15a. As shown in FIG. 4 (B), the clamp 23 projects a pair of locking blades 23b from the tip of the support shaft 23a protruding from the bottom wall of the main body 20a in a folded shape, and extends to the tip of the locking blade 23b. The provided locking step is locked and fixed to the peripheral edge of the locking hole 15a. A pair of punching holes 20h are formed in the bottom wall of the branch line accommodating portion 22 for pulling out a mold for forming the locking blade 23b.

  Further, as shown in FIG. 4A, the main line accommodating portion 21 is fixed by projecting a bracket 21e laterally from the upper end of the main body 20a, and providing the bracket 21e with a bolt hole 21f. As shown in FIG. 3, the bracket 21e is placed on the upper surface 3a of the cross member 3, and is bolted and fixed.

  The protector 20 is assembled in advance by inserting the wire harness 11 therein. That is, the trunk wire 11A of the wire harness 11 is passed through the main body 20a of the trunk wire housing portion 21, the branch line 11B branched from the trunk wire 11A is passed through the main body 20a of the branch wire housing portion 22, and then the cover 20b is put on and locked. Yes.

A cable insertion groove 25 is provided in the upper surface on one side in the width direction of the lid 20b of the stepped vertical section 22a of the protector 20 so as to extend in the front-rear direction.
The cable insertion groove 25 is for insertion of the parking brake cable 10 wired from the front of the vehicle to the rear across the cross member 3. The parking brake cable 10 is inserted into the cable insertion groove 25 provided on the surface of the lid 20b because, as described above, after the protector 20 is fixed to the floor panel 1 and the cross member 3, the cable is assembled last. It is.

  As shown in FIG. 4, the cable insertion groove 25 is set to a size that allows the parking brake cable 10 to be inserted to be fitted and held without protruding outward from the surface of the lid 20b. Further, clamping claws 25a and 25b are provided so as to protrude from both sides of the opening end of the cable insertion groove 25.

  Further, an elongated hole 25h is provided at a position directly above the protruding position of the clamp 23 at the bottom of the cable insertion groove 25. As shown in FIG. 8, the long hole 25h is a long hole into which the jig 30 for releasing the lock of the clamp 23 can be inserted, and both side portions 30a and 30b of the jig 30 passed through the long hole 25h are formed on the bottom wall of the main body. The locking step portions 23d on both sides of the clamp 23 are clamped and pulled out through the punched holes 20h.

As described above, the cross member 3 disposed across the center tunnel 2 projecting from the surface of the floor panel 1 of the automobile is stepped on the upper surface 2a of the center tunnel 2 from the height of the portion overlapping the upper surface 2a of the center tunnel 2. The height of the portion protruding from the side surface that is continuous in the shape is increased, the protector receiving groove 15 is provided in the portion, and the stepped vertical section 22 a of the protector 20 is fitted.
As described above, since the protector receiving groove 15 is provided in a portion where the protruding height of the cross member 3 is increased, the rigidity of the cross member 3 is not lowered and the upper surface of the stepped vertical section 22a of the protector 20 is crossed. It can be equivalent to the upper surfaces 3 a and 3 b of the member 3. Furthermore, since the upper surface of the trunk accommodating portion 21 of the protector 20 arranged along the rear vertical wall 3c of the cross member 3 is also substantially equal to the height of the upper surface of the cross member 3, the portion that becomes the walk-through passage 5 is flattened. be able to.

  Further, the branch line 11B of the wire harness 11 wired across the cross member 3 positioned below the walk-through passage 5 is inserted into the branch line accommodating portion 22 of the protector 20 attached to the cross member 3, and the upper surface is covered. Closed at 20b. Further, the parking brake cable 10 is inserted into a cable insertion groove 25 provided in the lid 20b. Thus, the wire harness and the cable can be efficiently accommodated and held by the protector 20, so that the upward jumping can be prevented and the load from above can be protected. Therefore, the branch line 11B and the parking brake cable 10 can be protected even if a step or a load of a load is applied through the floor carpet laid in the walk through passage 5 above the cross member 3 and the center tunnel 2.

  Further, when the protector 20 is attached by mistake, the protector can be easily detached from the vehicle body by work from above the protector 20. That is, as shown in FIG. 8, the clamp 23 is locked by narrowing the jig 30 by sandwiching and narrowing the locking projection 23e of the clamp 23 through the long hole 25h of the lid 20b and the through hole 20h of the main body 20a. The locking with the periphery of the hole can be released and the locking with the clamp 23 can be released. Further, the main line accommodating portion 21 can be released by removing a bolt screwed into the bolt hole of the bracket 21e from above.

The present invention is not limited to the above-described embodiment. For example, the clamp 23 may have a shape shown in FIG. 9 so that the lock can be easily released by the jig 30. That is,
9A, the locking protrusion 23e of the locking step 23d is lengthened, and the locking protrusion 23e has a U-shaped cross section as shown in FIG. 9B. As shown to (C), while making it easy to grasp the latching protrusion part 23e by the both sides 30a and 30b of the jig | tool for cancellation | release, it makes it difficult to slide sideways in the state grasped.

DESCRIPTION OF SYMBOLS 1 Floor panel 2 Center tunnel 3 Cross member 5 Walk through passage 10 Parking brake cable 11 Wire harness 11A Trunk line 11B Branch line 15 Protector accommodating groove 20 Protector 20a Main body 20b Cover 21 Trunk line accommodating part 22 Branch line accommodating part 22a Step vertical part 22b Front Swelling portion 25 Cable insertion groove 25a, 25b Claw Claw S1 Driver's seat S2 Passenger seat

Claims (6)

In a car with a walk-through passage between the driver's seat and the passenger seat,
A protector that accommodates a harness that crosses over a step protruding from the upper surface of the floor is provided, and the protector includes a stepped vertical portion that fits into a protector receiving groove that is recessed in the upper surface of the step, as the branch line accommodating portion. It has a trunk housing part that is continuous with the housing part,
The upper surface height of the step vertical portion of the protector and the trunk housing portion is equal to the upper surface height of the step to form a flat surface including a range where the protector straddles the step, and the bottom wall of the step vertical portion of the protector Wiring structure for automotive harnesses with fixed clamps protruding from the top. The step comprises a cross member provided on the floor panel, and the protector receiving groove provided on the cross member comprises a recess opened in the front-rear direction.
The protector includes a main body and a lid, and includes a trunk housing portion disposed in the vehicle width direction along the rear vertical wall of the cross member, and a branch housing portion branched from the trunk housing portion and extending forward. A branch branched from a trunk line of a harness to the stepped vertical portion, provided with a front bulging portion that is continuous with the stepped vertical portion. The wiring structure for an automobile harness according to claim 1, wherein the wire and the cable are wired in parallel.   The cross member extends in the vehicle width direction across the projecting portion of the center tunnel, the top surface of the center tunnel is located across the trunk line housing portion of the protector, the top surface and the top surface of the trunk line housing portion The wiring structure for an automotive harness according to claim 2, wherein the upper surface of the cross member has substantially the same height.   The wiring structure for an automobile harness according to any one of claims 1 to 3, wherein the protector has a front and rear portion sandwiching the stepped vertical section abutting and fixed to a front and rear vertical wall of the step.   5. The front bulging portion of the branch line accommodating portion of the protector is formed corresponding to a portion where the height of the cross member becomes higher in accordance with the step of the protruding portion of the center tunnel. The wiring structure of the harness for motor vehicles of any one of Claims.   The wiring structure for an automotive harness according to any one of claims 2 to 5, wherein a stepped vertical section of the protector is provided on a side of a seat mounting seat provided on the cross member.

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