JP4849044B2 - Seat belt anchor mounting structure and wire harness routing method - Google Patents

Description

  The present invention relates to a seat belt anchor mounting structure and a wire harness routing method in which a seat belt anchor that supports a seat belt is mounted to a pillar portion of a vehicle body via a mounting member.

2. Description of the Related Art Conventionally, an anchor reinforcement member is provided when a seat belt anchor is attached to an upper portion of a rear pillar of a vehicle body (see Patent Document 1 below).
Japanese Patent Laid-Open No. 9-216546

  However, such a conventional structure only considers the reinforcement of the mounting portion of the seat belt anchor, and does not particularly consider the reinforcement of the pillar portion.

  Accordingly, an object of the present invention is to provide a structure that takes into account both the reinforcement of the attachment portion of the seat belt anchor and the reinforcement of the pillar portion.

According to the present invention, an attachment member for attaching a seat belt anchor to a pillar portion of a vehicle body is disposed in a space between an outer member and an inner member constituting the pillar portion, and the attachment member is arranged in an extension direction of the pillar portion. A lower surface and an upper surface having surfaces that are spaced apart from each other and intersecting the extending direction, and a seat belt anchor mounting surface that connects the lower member and the inner surface of the upper surface to each other. And the outer edge of the upper surface of the vehicle body are fixed to the outer member, the seat belt anchor mounting surface is fixed to the inner member, and the wire harness is connected to the inner member above the mounting member from the inner side of the vehicle body. An insertion hole for insertion into the space is provided, and the wire harness is pulled from the space to the inside of the vehicle body to the inner member below the mounting member. A horizontal plane is provided so that the upper surface is positioned downward so that the wire harness inserted through the insertion hole is guided downward from the gap between the mounting member and the inner surface of the pillar portion. The most important feature is that it is inclined with respect to.

According to the present invention, the strength of the pillar portion can be increased by the mounting member provided in the pillar portion, and the lower surface and the upper surface of the mounting member serve as a replacement surface for the load input to the seat belt anchor. It is possible to reinforce the attachment portion of the seat belt anchor in the portion.
Further, by tilting the upper surface of the mounting member, the wire harness that has entered the space between the outer member and the inner member can be easily moved toward the lower extraction hole, and the wiring harness is arranged. The search workability can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an internal structure around a rear pillar 3 as a pillar portion in a vehicle body 1 shown as a side view in FIG. 2 according to an embodiment of the present invention. A side roof rail 5 is provided from the upper end of the extending rear pillar 3 toward the front.

  A body side outer 9 shown in FIG. 2 is provided so as to cover the outside of the body side inner 7 constituting the body side shown in FIG. The body side inner 7 is provided with a side roof rail inner 11 extending in the longitudinal direction of the vehicle body at the upper portion and a rear pillar inner 13 as an inner member extending in the vertical direction at the rear portion, and the body side outer 9 also corresponds to the body side inner 7. The side roof rail outer 15 extending in the longitudinal direction of the vehicle body is provided at the upper part, and the rear pillar outer 17 extending in the vertical direction is provided at the rear part.

  A reinforcing member 19 is provided outside the corner portion at a position where the rear end of the side roof rail inner 11 and the upper end of the rear pillar inner 13 intersect as shown in FIG. The reinforcing members 19 are provided on both sides in the vehicle width direction, and the two reinforcing members 19 are connected to each other by a rear roof rail 21. A portion surrounded by the rear roof rail 21 and the rear pillar inner 13 serves as a back door opening 23 for opening and closing a back door (not shown).

  FIG. 3 is a cross-sectional view taken along the line AA (corresponding to the cross section BB in FIG. 1) with a part of FIG. 2 omitted, and an outer member between the rear pillar inner 13 and the rear pillar outer 17 in the rear pillar 3 is shown. A rear pillar outer reinforcement 25 is provided. A seat belt anchor mounting bracket 27 is provided in a space 26 between the rear pillar outer reinforcement 25 and the rear pillar inner 13. The seat belt anchor mounting bracket 27 constitutes a mounting member for mounting a seat belt anchor 41 that supports a seat belt (not shown).

  In addition, although not shown in particular in the opening 29 formed in the rear of the vehicle body on the right side in FIG.

  FIG. 4 is a perspective view showing the rear pillar outer reinforcement 25 shown in FIG. 3 in addition to FIG. 1, and the upper portion of the rear pillar outer reinforcement 25 is positioned at the corner where the reinforcing member 19 is provided. It extends to. The portion of the rear pillar outer reinforcement 25 positioned at the corner may be separated from the lower portion thereof with the two-dot chain line S as a boundary.

  5 is a perspective view showing the same position from the vehicle compartment side, that is, the back side of the paper of FIG. 4, with the body side inner 7 and the reinforcing member 19 omitted from FIG.

  As shown in FIG. 3, the seat belt anchor mounting bracket 27 provided in the space 26 between the rear pillar outer reinforcement 25 and the rear pillar inner 13 corresponds to the extending direction of the rear pillar 3 as shown in FIG. A lower surface 33 and an upper surface 35 having surfaces that are separated from each other along the vertical direction of the vehicle body and intersect with the vertical direction of the vehicle body, and a seat belt anchor mounting that connects the lower pillar 33 and the rear pillar inner 13 side of the upper surface 35 to each other And a surface 37.

  Here, the seat belt anchor mounting surface 37 is formed in a substantially square plate shape as shown in FIGS. 1 and 5, and the surface of the rear pillar inner 13 opposite to the passenger compartment (the rear pillar inner 13 in FIG. 1). And fix it on the front side of the paper). Further, a weld nut 39 is attached to the rear pillar outer reinforcement 25 side at the center of the seat belt anchor attachment surface 37, and the seat belt anchor 41 shown in FIG. 3 is attached to the rear pillar inner by using the weld nut 39 and a bolt (not shown). It is fastened and fixed to the 13th passenger compartment side.

  The seat belt anchor mounting bracket 27 has a lower surface 33 continuous with the lower edge 37a of the seat belt anchor mounting surface 37 so as to be bent approximately 90 ° in FIG. The upper surface 35 is continuous with the upper edge 37b so as to be bent approximately 90 ° in FIG. 1, and these are integrated.

  As shown in FIG. 3, the lower surface 33 of the seat belt anchor mounting bracket 27 has a substantially pentagonal shape including the side corresponding to the lower edge 37a of the seat belt anchor mounting surface 37 described above. The two sides 33 a and 33 b on the opposite side of the seat belt anchor mounting surface 37 are joined and fixed to the rear pillar outer reinforcement 25.

  The two sides 33a and 33b of the lower surface 33 described above are adjacent to each other by being bent to correspond to the bent surfaces 25a and 25b constituting the bent portion that is bent so as to protrude outwardly from the rear pillar outer reinforcement 25. It is in.

  On the other hand, the upper surface 35 of the seat belt anchor mounting bracket 27 has a substantially pentagonal shape, including the side corresponding to the upper edge 37b of the seat belt anchor mounting surface 37, like the lower surface 33 described above. Two sides 35a and 35b opposite to the seat belt anchor mounting surface 37 of each side are joined and fixed to the bent surfaces 25a and 25b of the rear pillar outer reinforcement 25.

  As shown in FIG. 3, such a seat belt anchor mounting bracket 27 is disposed in a space 26 between the rear pillar inner 13 and the rear pillar outer reinforcement 25, with a gap between the vehicle body front side and the rear side on both sides thereof. 43 and 45 are provided. Here, it is assumed that the gap 43 is larger than the gap 45.

  The lower surface 33 of the seatbelt anchor mounting bracket 27 described above is substantially parallel to the horizontal plane, but the upper surface 35 has at least the edge portion 35c on the gap 43 side with respect to other parts. Inclined to be vertically downward.

  The wire harness 47 is routed in the space 26 between the rear pillar inner 13 and the rear pillar outer reinforcement 25 so as to pass through the gap 43. Further, a wire harness insertion hole 49 as an insertion hole penetrating the body side inner 7 and the reinforcing member 19 is provided immediately above the seat belt anchor mounting bracket 27, and the rear pillar inner 13 below the seat belt anchor mounting bracket 27 is provided. Has a wire harness lead-out hole 51 as a lead-out hole.

  The wire harness 47 is inserted into the space 26 between the rear pillar inner 13 and the rear pillar outer reinforcement 25 from the wire harness insertion hole 49 after being routed on the side of the side roof rail inner 11 shown in FIG. The wire harness is further drawn out from the wire harness lead-out hole 51 toward the passenger compartment side, and a connector 53 provided at the tip thereof is connected to the rear combination lamp.

  According to the seat belt anchor mounting structure as described above, a pulling force by the seat belt acts on the seat belt anchor 41 mounted on the seat belt anchor mounting surface 37. This tensile force is applied to the seat belt anchor mounting bracket 27. Is set to the upper part of the rear pillar 3 so that it faces downward, so that the lower surface 33 continuing to the lower edge 37a of the seat belt anchor mounting surface 37 is mainly a support surface, and its two sides 33a, 33b are Accordingly, the mounting strength of the seat belt anchor 41 is improved by releasing the pulling force to the rear pillar outer reinforcement 25.

  Further, the seat belt anchor mounting bracket 27 has an upper surface 35 and a lower surface 33 which are respectively continuous above and below the seat belt anchor mounting surface 37, and a space (cross section) 26 between the rear pillar inner 13 and the rear pillar outer reinforcement 25. Since it is attached so as to be partially closed, the strength of the rear pillar 3 is improved by maintaining the cross-sectional shape, and it is possible to contribute to maintaining the rigidity of the back door opening 23.

  Further, by arranging the above-described seat belt anchor mounting bracket 27 on the upper portion of the rear pillar 3, it is effective for reinforcing a trifurcated portion where the rear pillar 3, the side roof rail 5, and the rear roof rail 21 intersect with each other, and the seat belt. The improvement of the attachment strength of the seatbelt anchor 41 by providing the upper surface 35 and the lower surface 33 which are replacement surfaces for the load input to the anchor 41 can be made more effective.

  Further, at least one edge of the lower surface 33 and the upper surface 35 of the seat belt anchor mounting bracket 27, that is, at least one of the two sides 33a and 33b of the lower surface 33 and the two sides 35a and 35b of the upper surface 35, By bending and adjoining each other corresponding to the bent surfaces 25a and 25b of the rear pillar outer reinforcement 25, the strength of the rear pillar 3 and the mounting strength of the seat belt anchor 41 can be further increased.

  Further, in order to route the wire harness 47 routed on the passenger compartment side in FIG. 1 in the space 26 between the rear pillar inner 13 and the rear pillar outer reinforcement 25, a connector 53 provided at the tip thereof is provided. The space 26 is inserted through the wire harness insertion hole 49.

  The connector 53 that has entered the space 26 from the wire harness insertion hole 49 lands on the upper surface 35 of the seatbelt anchor mounting bracket 27 located immediately below the wire harness insertion hole 49. This upper surface 35 is shown in FIG. Since the gap 43 side is inclined downward, the upper surface 35 slides down like a slide, is easily moved to the gap 43 side, and is guided from the gap 43 to the seat belt anchor mounting bracket 27. Can drop down.

  When the connector 53 is dropped to the vicinity of the drawer hole 51 provided in the rear pillar inner 13, the connector 53 is pulled out from the drawer hole 51 to the passenger compartment side, and the extracted connector 53 is exposed to the passenger compartment side of the rear combination lamp. Connect to the connector part.

  In this way, the upper surface 35 of the seat belt anchor mounting bracket 27 is inclined, so that the wire harness 47 that has entered the space 26 between the rear pillar inner 13 and the rear pillar outer reinforcement 25 is formed in the lower extraction hole 51. Therefore, the wiring workability of the wire harness 47 can be improved.

  Further, since the wire harness 47 can be easily moved to the lower extraction hole 51, the extraction hole 51 can be reduced to a minimum, and the rigidity of the rear pillar 3 can be compared with the case where the extraction hole 51 is enlarged. Can also be secured.

  By providing the upper surface 35 constituting a part of the seat belt anchor mounting bracket 27 with the function of guiding the wire harness 47 as described above downward, a guide member is provided as a separate member from the seat belt anchor mounting bracket 27. Compared with the case where it provides, both cost and mass can be restrained low.

  The upper surface 35 of the seat belt anchor mounting bracket 27 is inclined with respect to the horizontal plane for guiding the wire harness 47, so that the load input to the seat belt anchor 41 (the pulling force by the seat belt) is prevented. However, since the tensile force is directed downward as described above, the lower surface 33 mainly serves as a replacement surface, and there is no particular problem.

It is a perspective view which shows the internal structure of the rear pillar periphery in the vehicle body of the motor vehicle shown in FIG. 2 as a side view according to one embodiment of the present invention. It is a side view of the vehicle body rear part provided with the internal structure around the rear pillar of FIG. It is AA sectional drawing which abbreviate | omitted a part of FIG. FIG. 2 is a perspective view showing a rear pillar outer reinforcement added to FIG. 1. FIG. 5 is a perspective view showing the same position from the passenger compartment side with the body side inner and the reinforcing member omitted in FIG. 4.

Explanation of symbols

1 Car body 3 Rear pillar (pillar part)
13 Rear pillar inner (inner member)
25 Rear pillar outer reinforcement (outer member)
25a, 25b Bending surface (bending part) of rear pillar outer reinforcement
26 Space between the rear pillar outer reinforcement and the rear pillar inner
27 Seatbelt anchor mounting bracket (mounting member)
33 Lower surface of seat belt anchor mounting bracket 33a, 33b Two sides of lower surface (edge of lower surface)
35 seat belt anchor mounting bracket of the upper surface 35a, 2 sides of 35b upper surface (edge portion of the upper stepped surface)
37 Seat belt anchor mounting surface of seat belt anchor mounting bracket 41 Seat belt anchor 43 Clearance between seat belt anchor mounting bracket and inner surface of rear pillar 47 Wire harness 49 Wire harness insertion hole (insertion hole)
51 Wire harness lead hole (drawer hole)

Claims (4)

In a seat belt anchor mounting structure in which a seat belt anchor for supporting a seat belt is mounted to a pillar portion of a vehicle body via a mounting member, the mounting member is a space between an outer member and an inner member constituting the pillar portion. The mounting member includes a lower surface and an upper surface having surfaces that are separated from each other along the extension direction of the pillar portion and intersect the extension direction, and the inner member side of the lower surface and the upper surface. Each having a seat belt anchor attachment surface connected to each other, and fixing the outer edge of the lower surface and the upper surface of the vehicle body to the outer member, and fixing the seat belt anchor attachment surface to the inner member ,
The inner member above the mounting member is provided with an insertion hole for inserting the wire harness into the space from the inside of the vehicle body, and the wire harness is pulled out from the space to the inside of the vehicle body at the inner member below the mounting member. Provide a lead-out hole so that the wire harness inserted through the insertion hole is guided downward from the gap between the mounting member and the inner surface of the pillar portion, and the upper surface is placed on a horizontal plane so that the gap side is downward. A seat belt anchor mounting structure characterized in that the seat belt anchor is inclined with respect to the seat belt.   The seat belt anchor mounting structure according to claim 1, wherein the mounting member is disposed on an upper portion of the pillar portion. Claim 1 or 2, characterized in that said at least one of the edge portions of the lower surface and the upper surface of the attachment member, and to correspond to the bent portion of the outer member composed of two sides adjacent bent together The seat belt anchor mounting structure described in 1.   In a wire harness routing method for routing a wire harness in a space between an outer member and an inner member in a pillar portion of a vehicle body, a seat belt anchor that supports a seat belt in a space between the outer member and the inner member The mounting member is provided with a lower surface and an upper surface having surfaces that are separated from each other along the extending direction of the pillar portion and intersect the extending direction, and the inner surface of the lower surface and the upper surface. A space between the outer member and the inner member through an insertion hole provided above the mounting member of the inner member from the inside of the vehicle body. The mounting wire and the pillar portion are moved by moving the inserted wire harness along the inclined portion of the upper surface. After guiding the gap between the inner surface, a wiring harness wherein the withdrawing into the vehicle compartment side from the lead-out holes provided in the inner member in said lower is moved below the mounting member.

Images