JP2019119358A - Vehicle rear part structure - Google Patents

Abstract

Deformation of a rear portion of a vehicle (particularly, a lamp housing and a joint portion between the lamp housing and a roof) can be suppressed while suppressing an increase in equipment cost and weight. A lamp housing bracket (7) to which a luggage trim (6) is attached includes a plate portion (7b) further overlapped with a region where the roof (3) is overlapped in the proof roof (3) and the lamp housing (5), and a proof from the plate portion (7b) to the lamp housing (5). And extending end portions 7c and 7e that extend toward the portion 5b that is farther outside the vehicle than 3 and overlap the portion 5b. The lamp housing 5, the proof 3 and the plate portion 7 b are joined in a region 301 where the lamp housing 5 overlaps, and at least one region 303 where the part 5 b of the lamp housing 5 overlaps the extended end portions 7 c and 7 e. Are joined. [Selection] Figure 3

Description

  The present invention relates to a vehicle rear structure including a lamp housing for rear lamp storage and a lamp housing bracket for luggage trim attachment.

  Patent Document 1 describes a mounting structure of a trunk trim mounting bracket. In this structure, the rear end side edge of the rear fender panel is joined to the inside of the rear end panel side edge, and the bolt insertion hole of the bracket for trunk trim attachment is attached to the rear lamp stud bolt penetrating the joint And the bracket is engaged and fixed by fastening the bracket through the stud bolt, and a tongue piece toward the center of the vehicle body in the vicinity of the stud bolt penetration portion of the rear end side edge of the rear fender panel , And an extension having an opening for engaging with the tongue is formed in a bracket for mounting the trunk trim, and the tongue and the opening of the extension are engaged with each other.

  Patent Document 2 describes a vehicle rear portion structure. This structure is provided along the vehicle width direction at the lower end of the rear end in the vehicle body, and has a reinforcement at the vehicle width direction outer upper edge portion with an inclined joint portion in which the longitudinal direction is inclined in the vertical direction And an inclined joint portion provided at an end portion in the vehicle width direction at the rear of the vehicle body and having a longitudinal direction inclined to the same direction as the inclined joint portion of the reinforcing member with respect to the horizontal direction. And a lamp housing coupled to the sloped joint portion of the lamp.

Unexamined-Japanese-Patent No. 08-198142 gazette JP 2007-328527 A

  The above-mentioned patent document 1 is an invention for facilitating the fastening operation of a bracket for attaching a trunk trim to a rear fender panel and facilitating the attaching operation of a trunk trim to the bracket, wherein a connecting device for traction is provided at the rear of a vehicle. There is no technical idea to suppress the deformation of the rear of the vehicle in consideration of attaching a tow and towing a trailer (trailer towing).

  In the above-mentioned Patent Document 2, the lower back panel and the joint of the lamp housing and the lower back panel and the quarter panel (side outer panel) are connected in consideration of performing trailering by attaching the tow connecting device to the rear of the vehicle body. In order to suppress the deformation of the part, a reinforcement member (lower back reinforcement) is newly provided. Thus, in addition to the additional provision of a separate reinforcing member, since the lower back reinforcement as the reinforcing member is provided along the vehicle width direction at the rear of the vehicle. There is a concern that the weight will increase as the number of parts and equipment cost increase.

  By the way, in order to cope without using the reinforcing member as described above, it is conceivable to increase the thickness of the lower back panel, the lamp housing and the quarter panel (side outer panel). There is concern that the

  In view of such circumstances, the present invention can suppress deformation of the rear portion of the vehicle (particularly, the lamp housing and the area where the lamp housing and the toroof are overlapped) while suppressing the increase in equipment cost and weight. The purpose is.

  The vehicle rear structure according to the present invention includes a toe roof that forms both sides in the vehicle left-right direction at the periphery of an opening that communicates the boot room with the outside of the vehicle, and is disposed closer to the boot room than the toroof A lamp housing for rear lamp storage disposed on the right side, and a lamp housing bracket attached to the lamp housing and to which luggage trims attached on both sides in the vehicle left-right direction in the trunk room are attached, the lamp housing bracket The lamp housing further includes a plate portion superimposed on the area where the roof is overlapped, and the lamp housing extends toward the region farther to the vehicle outer side than the roof in the lamp housing and Heavy The two ends are joined in the region where the lamp housing, the toroof and the plate portion are overlapped, and the portion of the lamp housing and the extended end portion are joined together. It is characterized in that at least one place in the overlapping region is joined.

  In this configuration, the lamp housing bracket makes it possible to increase as much as possible the rigidity of the lamp housing and the area where the lamp housing and the toroof are superimposed.

  The lamp housing bracket is an existing component used for mounting the luggage trim and is not additionally equipped with a new reinforcing member or the like, so that an increase in equipment cost can be suppressed.

  Moreover, the rigidity of the lamp housing and the rigidity of the area where the lamp housing and the toroof are superimposed can be adjusted by increasing the thickness of the lamp housing bracket, so that the rigidity can be adjusted. As compared with the lamp housing bracket, it is possible to reduce the thickness of the lamp housing and the toe plate which are larger in outer diameter as much as possible, which contributes to weight reduction of the vehicle.

  The vehicle rear structure according to the present invention makes it possible to suppress the deformation of the vehicle rear (in particular, the lamp housing and the area where the lamp housing and the toroof are overlapped) while suppressing the increase in equipment cost and weight.

In one embodiment of the vehicle rear structure according to the present invention, the right side of the rear of the vehicle is viewed from the inside of the trunk room. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows typically the whole vehicle to which this invention is applied seeing from a left side. It is the figure which looked at the (3)-(3) line cross section of FIG. 1 from the arrow direction. It is the perspective view which looked at the right side of the vehicle rear of FIG. 1 from the trunk room inner side. FIG. 5 is a perspective view of the rear right side of the vehicle of FIG. 4 as viewed from the outside of the trunk room. It is a figure which shows the lamp housing bracket which concerns on the comparative example of this invention corresponding to FIG.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the attached drawings.

  1 to 5 show an embodiment of the present invention. In the figure, 1 is a sedan type vehicle, 2 is a trunk room, 3 is a toroof, 4 is a side member outer, 5 is a lamp housing, 6 is a luggage trim, and 7 is a lamp housing bracket. Further, Fr indicates the front side of the vehicle, Rh indicates the right side of the vehicle, and Up indicates the upper side of the vehicle.

  The toroof 3 constitutes both sides in the left-right direction of the vehicle at the periphery of an opening (not shown) communicating the trunk room 2 with the outside of the vehicle 1. A weather strip 8 is attached to one side of the toroof 3 as shown in FIG.

  A lamp housing 5 for storing a rear lamp is disposed on the trunk room 2 side of the toroof 3.

  The lamp housing 5 is provided on the left side and the right side of the rear portion of the vehicle 1 and has a rear panel 5a and a side panel 5b. As shown in FIG. 3, the toroof 3 is superimposed on the outside of the rear panel 5 a of the lamp housing 5.

  Further, a lamp housing bracket 7 is attached to the inside of the lamp housing 5. The lamp housing bracket 7 is used to mount the luggage trim 6 in the trunk room 2.

  The luggage trim 6 is disposed on the left and right sides of the vehicle 1 in the trunk room 2. The luggage trim 6 is attached by inserting the clip 9 into the attachment hole 7f of the lamp housing bracket 7 from the outside of the attachment hole 6a of the luggage trim 6 described below.

  When a trailer (not shown) is towed by the vehicle 1 as described above, a tow hitch hitch member 10 is attached to the rear end of the vehicle 1 substantially at the center in the lateral direction of the vehicle (see FIG. 2).

  By the way, in such a vehicle 1, a trailer (not shown) is connected to the hitch member 10 of the tow hitch, and when the trailer is towed, a tensile load is input in the direction shown by the arrow 100 in FIG. As a result, a moment load is generated at the rear of the vehicle 1 from the lower side to the upper side about the axis along the vehicle left-right direction as shown by the arrow 200 in FIG.

  The shape and mounting form of the lamp housing bracket 7 used for mounting the luggage trim 6 are devised in order to enhance the load resistance to such a moment load 200, which will be described in detail below.

  The lamp housing bracket 7 is formed of a plate member made of an appropriate metal, and is further bent at a predetermined angle via the second plate portion 7b which is bent at a predetermined angle toward one end side of the strip-shaped first plate portion 7a. A third plate portion 7c is provided. An attachment hole 7f for attaching the luggage trim 6 is provided at a predetermined portion of the first plate portion 7a.

  Then, a fourth plate portion 7d of a generally right-angled triangle in plan view bent at a predetermined angle is provided on one of the two long sides of the third plate portion 7c, and the third plate portion 7c is further formed. At the free end side, a fifth plate portion 7e which is bent at a predetermined angle with respect to the third plate portion 7c is provided.

  The second plate portion 7b and the fourth plate portion 7d are further overlapped in an area where the toroof 3 and the rear panel 5a of the lamp housing 5 are overlapped, and two places separated in this three-layered area (FIGS. 3 to 5) 301, 302) are joined by, for example, spot welding.

  The third plate portion 7c is extended toward the side panel 5b in the lamp housing 5 which is farther to the vehicle outer side than the toroof 3, and the fifth plate portion 7e is superimposed on the side panel 5b. At least one place (refer to 303 in FIGS. 3 to 5) of the double sheet overlapping region of the fifth plate portion 7e and the side panel 5b is joined by, for example, spot welding.

  The second plate portion 7b and the fourth plate portion 7d correspond to the plate portions described in the claims, and the third plate portion 7c and the fifth plate portion 7e are described in the claims. It corresponds to the extension end described.

  The other long side of the two long sides of the third plate portion 7c is inclined downward by a predetermined angle θ1 with respect to the virtual straight line 400 along the vehicle longitudinal direction as shown in FIG. It has been The angle θ1 can be set based on the acting angle of the moment load 200 with respect to the lamp housing bracket 7. Although this action angle is determined by the relative relationship between the installation position of the hitch member 10 and the installation position of the lamp housing bracket 7, it has been found through experiments that 30 to 45 degrees is preferable.

  Furthermore, as shown in FIG. 3, the third plate portion 7 c is configured to be inclined at a predetermined angle θ 2 with respect to the extension line 500 of the fifth plate portion 7 e joined to the side panel 5 b of the lamp housing 5. There is.

  If the third plate portion 7c is set to be perpendicular to the extension line 500 of the fifth plate portion 7e, the side panel 5b of the lamp housing 5 and the fifth panel portion 7c when the moment load 200 acts on the lamp housing bracket 7 It was found by experiment that the joint portion with the five plate portion 7e is easily broken. Based on this finding, it is preferable to set the angle θ2 to less than 90 degrees, but it was found by experiments that it is more preferable to set it to 30 to 45 degrees.

  Thus, in the lamp housing bracket 7 which is an existing component used for attaching the luggage trim 6, the second plate portion 7b and the fourth plate portion 7d are joined in three sheets to the rear panel 5a of the lamp housing 5 and the toroof 3 And the third plate portion 7c of the lamp housing bracket 7 is inclined at a predetermined angle .theta.2 after the fifth plate portion 7e at a position apart therefrom is joined in two layers to the rear panel 5a of the lamp housing 5 The attitude load causes the moment load 200 generated by the trailer pulling to be received by the entire lamp housing bracket 7.

  This makes it possible to increase the rigidity of the lamp housing 5 and the rigidity of the area where the lamp housing 5 and the toroof 3 overlap each other as much as possible.

  FIG. 6 shows a comparative example of the present invention. The lamp housing bracket 7 of this comparative example is used to attach the luggage trim 6 and is not designed to perform reinforcement in consideration of trailer traction as the lamp housing bracket 7 of the above embodiment. That is, the third plate portion 7c and the fifth plate portion 7e of the above embodiment are not provided in the lamp housing bracket 7 of the comparative example, and the other configuration is the same as the lamp housing bracket 7 of the above embodiment. It has become.

  As described above, in the embodiment to which the present invention is applied, a new reinforcing member or the like is additionally provided by devising the shape and mounting form of the lamp housing bracket 7 which is an existing part used for mounting the luggage trim 6 The rigidity of the lamp housing 5 and the rigidity of the area where the lamp housing 5 and the toroof 3 overlap are compared with the case of using the lamp housing bracket 7 of the above comparative example, and without increasing the spot welding spot. Can be enhanced.

  Thereby, according to the embodiment to which the present invention is applied, it is possible to suppress the deformation of the rear part of the vehicle (for example, the lamp housing 5 and the area where the lamp housing 5 and the toroof 3 overlap) when performing the trailer traction. As a result, it is possible to curb increases in facility costs and manufacturing costs.

  Moreover, with regard to the rigidity of the lamp housing 5 and the rigidity of the area where the lamp housing 5 and the toroof 3 overlap each other as described above, when the plate thickness of the lamp housing bracket 7 is used as the lamp housing bracket 7 of the comparative example. Since it can be adjusted to be increased by making it thicker, it is possible to use the lamp housing bracket 7 of the above-mentioned comparative example when the plate thickness of the lamp housing 5 and the toroof 3 larger in external size than the lamp housing bracket 7 is used. It will be possible to reduce the weight of the vehicle, for example, by making it possible to make it as thin as possible.

  In addition, this invention is not limited only to the said embodiment, It is possible to change suitably within the range of a claim, and the range equivalent to the said range.

  The present invention can be suitably used for a vehicle rear structure including a lamp housing for rear lamp storage and a lamp housing bracket for luggage trim attachment.

1 vehicle 2 trunk room 3 toroof 4 side member outer 5 lamp housing
5a Rear panel
5b Side panel 6 luggage trim
6a mounting hole 7 lamp housing bracket
7a 1st board part
7b second plate
7c third plate
7d fourth plate
7e 5th plate section
7f mounting hole 8 weather strip 9 clip 10 hitch member 301 bonding position 302 bonding position 303 bonding position

Claims (1)

A toe roof that constitutes both sides in the vehicle left-right direction at the periphery of an opening that communicates the trunk room with the outside of the vehicle;
A lamp housing for storing rear lamps, which is disposed closer to the trunk room than the toroof and is disposed on the left and right sides of the vehicle in the trunk,
A lamp housing bracket mounted to the lamp housing and to which luggage trims mounted on both sides in the vehicle left-right direction in the trunk room are attached;
The lamp housing bracket is extended in a portion of the lamp housing that is further overlapped in the area where the roof is overlapped, and the lamp housing extends toward the portion of the lamp housing farther to the outside of the vehicle than the roof. And an extension end superimposed on the site;
Two places are joined in an area where the lamp housing, the toroof and the plate part overlap, and at least one place in an area where the portion of the lamp housing and the extension end overlap Vehicle rear structure characterized by

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