JP4355297B2 - Body superstructure - Google Patents

Description

  The present invention relates to a vehicle body superstructure such as an automobile.

  A vehicle width direction frame such as a roof reinforcement for reinforcing the upper portion of the vehicle body including the roof panel is provided along the vehicle width direction inside the vehicle body of the roof panel constituting the vehicle upper portion. The front end of the frame is joined by spot welding to a longitudinal frame such as a roof side rail extending in the longitudinal direction of the vehicle body (see, for example, Patent Document 1).

In the roof reinforcement mounting structure for automobiles described in Patent Document 1, the end portion of the roof reinforcement is fitted into a notch-shaped mounting opening formed in the roof side rail, and a thin plate-like shape is formed thereon. The joint reinforcements are stacked and spot welded to join.
Japanese Utility Model Publication No. 62-36968 (Scope of Claim for Utility Model Registration, Fig. 3)

  By the way, like the structure of the above-mentioned Patent Document 1, in the configuration in which a thin plate-like connection portion reinforcement as a reinforcing member is overlapped and spot-welded and joined to the joint portion between the roof reinforcement and the roof side rail, For example, when engine vibration is transmitted to the roof side rail via the front pillar, the thin plate-like connection portion reinforcement may also vibrate integrally with the roof side rail.

  For this reason, if the roof side rail vibrates due to engine vibration, etc., this vibration is transmitted from the joint of the roof reinforcement and the roof side rail to the roof reinforcement, causing a problem that the roof reinforcement vibrates up and down. To do. When the roof reinforcement vibrates up and down, this vibration sound is generated as an unpleasant noise in the vehicle.

  Therefore, the present invention suppresses transmission of vibration to the vehicle width direction frame side even when engine vibration or the like is transmitted to the joint portion between the longitudinal frame and the vehicle width direction frame of the vehicle body via the front pillar. An object of the present invention is to provide a vehicle body superstructure that can be used.

In order to achieve the above object, a vehicle body upper structure according to the present invention is formed by an inner panel and an outer panel, and a roof side rail that extends integrally from the upper end of the front pillar in the front-rear direction of the upper side surface of the vehicle body. in vehicle superstructure construction the roof cross member extending in the width direction are bonded, joined to the distal end side of the roof cross member as well as joined to the vehicle body inner side of the inner panel, one end on the upper surface of the roof cross member The other end of the roof side extension is joined to the outer panel on the lower surface outside the vehicle body to which the outer panel of the inner panel is joined so as to cover the upper surface from the joint flange with the outer panel on the upper surface of the inner panel . bonded over the joint flange, the inner of the roof side extension The portion located outboard of the panel, the convex portion along the direction perpendicular to the longitudinal direction of the inner panel is provided at least one, the portions located on opposite sides of the convex portion of the roof side extension The roof cross member is joined to the inner panel to form a first closed cross section, and the roof cross member includes a pair of front and rear rising parts rising along the vehicle width direction, and a pair of flange parts formed at the tips of the rising parts. Each of the end portions of the roof side extension and the pair of flange portions are joined to form a second closed cross section, and the first closed cross section and the second closed cross section are formed by the inner closed section. It is characterized by adjoining along the vehicle width direction with panels in between .

According to the vehicle body superstructure of the present invention, the roof side extension that is joined so as to cover the joint portion between the inner panel of the roof side rail and the roof cross member from above is positioned outside the vehicle body of the inner panel of the roof side rail. By providing a convex part along the direction perpendicular to the longitudinal direction of the roof side rail , the convex part exhibits a great suppression force against vibrations input to the inner panel of the roof side rail. can do.

According to the present invention, in the portion of the roof side extension that is joined so as to cover from above the joint portion between the inner panel of the roof side rail and the roof cross member , located on the outside of the vehicle body of the inner panel of the roof side rail , By providing a convex portion along a direction orthogonal to the longitudinal direction of the roof side rail , this convex portion exhibits a great suppression force against vibration input to the inner panel of the roof side rail . Even when engine vibration or the like is transmitted to the inner panel of the roof side rail, it is possible to suppress the vibration from being transmitted to the roof cross member side.

  Hereinafter, the present invention will be described based on the illustrated embodiments. 1 is a schematic side view showing a vehicle body to which a vehicle body upper structure according to an embodiment of the present invention is applied, FIG. 2 is a schematic perspective view showing a vehicle body upper structure according to the embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along the line BB of FIG. 2, FIG. 5 is a cross-sectional view taken along the line CC of FIG. 2, and FIG. 6 is a vehicle body upper structure according to the embodiment of the present invention. FIG. In FIG. 1, the left side of the figure is the front side of the vehicle body, and the right side of the figure is the rear side of the vehicle body. 1 to 6 show the upper body structure on the left side of the vehicle body, the same structure is also provided on the right side of the vehicle body.

  As shown in FIG. 1, an upper end side of a front pillar outer panel 2a that constitutes a vehicle body outer portion of a front pillar 2 of a vehicle body 1 and a roof side rail that constitutes a vehicle body outer portion of a roof side rail 3 that extends in the vehicle body longitudinal direction. The outer panel 3a is integrally formed. As shown in FIG. 2, the front pillar inner panel 2 b constituting the vehicle body inner side portion of the front pillar 2 and the roof side rail inner panel 3 b of the roof side rail 3 are also integrally formed. Note that the front pillar inner panel 2b and the roof side rail inner panel 3b may be separated and integrally connected.

  In the present embodiment, the range from the upper end of the front pillar 2 to the roof side rail 3 extending in the vehicle body front-rear direction corresponds to the “front-rear frame” according to claim 1 of the claims.

  As shown in FIG. 2, a thin plate-like front pillar inner panel 2b whose outer side of the vehicle body (right side of FIG. 2) has a slightly concave shape is bent on the inner side of the vehicle body (left side of FIG. 2). A bottom flange portion 2e is formed on the lower end surface of the front pillar inner panel 2b. Yes.

As shown in FIG. 2, in the vicinity of the upper end of the front pillar inner panel 2b, the front pillar inner panels 2b (the other front pillar inner panel is not shown) are coupled to each other so as to extend in the vehicle width direction. A roof cross member 4 as a vehicle width direction frame is provided. As shown in FIG. 3, the front end side (the right side in FIG. 3) of the roof cross member 4 is curved downward along the front pillar inner panel 2b, and the front end flange portion 4a is formed on the front pillar inner panel. It is joined by spot welding to an intermediate portion 2f inside the vehicle body 2b (left side in FIG. 3).

As shown in FIG. 4, the roof cross member 4 has rising portions 4b and 4c on both sides thereof, and both ends of a roof side extension 5 as a reinforcing member to be described later are provided at the tips of the rising portions 4b and 4c. Flange portions 4d and 4e for joining by spot welding to the flange portions 5a and 5b formed in the above are formed. An opening is formed between the upper flange portion 2c of the front pillar inner panel 2b due to the step formed by the rising portions 4b and 4c of the roof cross member 4 (see FIGS. 3 and 6).

As shown in FIG. 2, a roof side extension 5 is joined to the joint portion between the front pillar inner panel 2 b and the roof cross member 4 from above in order to reinforce the joint portion (details will be described later). On both sides of one end of the roof side extensions 5 to be overlaid on top of the roof cross member 4 (the left side in FIG. 2), the flange portion 4d of the roof cross member 4, a flange portion 5a in accordance with the position of 4e, 5b are formed ing.

Further, the other end side (right side in FIG. 2) of the roof side extension 5 has a bent portion 5c that is bent near the upper surface of the front pillar inner panel 2b to the outside of the vehicle body (right side in FIG. 2). Two tip flange portions 5d and 5e are formed on both sides of the tip of 5c so as to protrude downward. Further, flange portions 5f and 5g extending integrally from the flange portions 5a and 5b are formed on both sides of the bent portion 5c. In addition, groove flange portions 2g and 2h are formed on the lower surface flange portion 2e of the front pillar inner panel 2b to which the front end flange portions 5d and 5e of the bent portion 5c are joined by spot welding.

As shown in FIG. 5, when the bent portion 5c of the roof side extension 5 is joined to the front pillar inner panel 2b, two second portions along the vehicle body front-rear direction are interposed between the bent portion 5c and the front pillar inner panel 2b. Two bent portions 5h and 5i are formed in the bent portion 5c along the direction orthogonal to the longitudinal direction of the front pillar inner panel 2b so that one closed section 6a and 6b are formed. A concave surface 5j is formed between the convex portions 5h and 5i for joining to the outside of the vehicle body of the front pillar inner panel 2b by spot welding.

And as shown in FIG. 6, the front-end | tip flange part 4a (refer FIG. 3) of the roof cross member 4 extended in a vehicle width direction is contact | abutted to the vehicle body inner side of the intermediate part 2f of the front pillar inner panel 2b, From this upper direction The roof side extensions 5 are stacked (see FIG. 2).

2 to 5, the flange portions 4d and 4e of the roof cross member 4 and the flange portions 5a and 5b of the roof side extension 5 are joined by spot welding, and the upper surface flange portion of the front pillar inner panel 2a is joined. 2c and the intermediate part 2f are sandwiched between the front flange part 4a of the roof cross member 4 , the bent part 5c side of the flange parts 5a and 5b of the roof side extension 5 , the flange parts 5f and 5g, and the concave surface 5j. It joins by spot welding, Furthermore, the front-end | tip flange parts 5d and 5e of the roof side extension 5 and the groove-shaped flange parts 2g and 2h of the front pillar inner panel 2b are joined by spot welding. 2 to 5, the “x” marks indicate the spot welding locations described above.

Thus, first closed cross sections 6a and 6b are formed between the front pillar inner panel 2b and the convex portions 5h and 5i of the bent portion 5c of the roof side extension 5 (see FIGS. 3 and 5), and the roof. A second closed section 7 is formed between the cross member 4 and the roof side extension 5 (see FIGS. 3 and 4). As shown in FIG. 3, the first closed sections 6a and 6b and the second closed section 7 are formed so as to be adjacent to each other along the vehicle width direction with the front pillar inner panel 2b interposed therebetween.

Further, in the present embodiment, as shown in FIG. 5, the front flange portion 4a side of the roof cross member 4 located on the inner side of the vehicle body facing the first closed cross sections 6a and 6b with the front pillar inner panel 2b interposed therebetween. In addition, the two convex portions 4f are formed so that two third closed sections 8a and 8b are formed along the longitudinal direction of the vehicle body when joined to the intermediate portion 2f (see FIG. 3) of the front pillar inner panel 2b. , 4g are formed.

In the present embodiment, as described above, after the roof side extension 5 is joined to the joint between the front pillar inner panel 2b and the roof cross member 4 , the roof side rail outer panel 3a is sandwiched between the roof side extension 5 and the roof side rail outer panel 3a. A flange portion (not shown) of the integrally formed front pillar outer panel 2a (see FIG. 1) is joined to the upper surface flange portion 2c and the lower surface flange portion 2e of the front pillar inner panel 2b by spot welding.

As described above, the bent portion 5c of the roof side extension 5 joined to reinforce the joint portion between the front pillar inner panel 2b and the roof cross member 4 extends along the direction perpendicular to the longitudinal direction of the front pillar inner panel 2b. Since the two convex portions 5h and 5i are provided, for example, even when engine vibration is transmitted to the front pillar inner panel 2b and the front pillar inner panel 2b vibrates in the thickness direction, the two of the roof side extensions 5 are The convex portions 5h and 5i function as a vibration suppressing member that suppresses the vibration of the front pillar inner panel 2b, and can suppress the vibration of the front pillar inner panel 2b.

Thus, the vibration of the front pillar inner panel 2b is prevented from being transmitted to the roof cross member 4, it is possible to prevent the generation of noise due to the vibration of the roof cross member 4. In the present embodiment, the front flange portion 4a joined to the front pillar inner panel 2b of the roof cross member 4 is also provided with the two convex portions 4f and 4g (see FIG. 5). The vibration of the inner panel 2b can be suppressed more effectively.

Moreover, in the said embodiment, although it was the structure which provided the two convex-shaped parts 5h and 5i along the direction orthogonal to the longitudinal direction of the front pillar inner panel 2b in the bending part 5c of the roof side extension 5 , The structure which provides one or three or more convex parts may be sufficient.

The schematic side view which shows the vehicle body to which the vehicle body superstructure which concerns on embodiment of this invention is applied. The schematic perspective view which shows the vehicle body upper structure which concerns on embodiment of this invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. BB sectional drawing of FIG. The CC sectional view taken on the line of FIG. The disassembled perspective view which shows the vehicle body upper structure which concerns on embodiment of this invention.

1 Car body 2 Front pillar 2a Front pillar outer panel 2b Front pillar inner panel 3 Roof side rail (front-rear frame)
3a Roof side rail outer panel 3b Roof side rail inner panel 4 Roof cross member (vehicle width direction frame)
5 roof side extension (reinforcing member)
5c Bending parts 5h, 5i Convex parts 6a, 6b First closed section 7 Second closed section

Claims (2)

A vehicle body having a structure in which a roof cross member extending in the vehicle width direction is coupled to a roof side rail integrally formed in the front-rear direction of the upper side surface of the vehicle body from the upper end of the front pillar formed by an inner panel and an outer panel In the superstructure,
While joining the front end side of the roof cross member to the inner body of the inner panel,
The outer panel of the inner panel is joined so that the other end side of the roof side extension with one end side joined to the upper surface of the roof cross member covers the upper surface from the joining flange with the outer panel on the upper surface of the inner panel. To be joined over the joining flange with the outer panel on the lower surface outside the vehicle body,
At least one or more convex portions along a direction perpendicular to the longitudinal direction of the inner panel are provided in a portion of the roof side extension located outside the vehicle body of the inner panel ,
A portion of the roof side extension located on both sides of the convex portion is joined to the inner panel to form a first closed cross section,
The roof cross member has a pair of front and rear rising portions that rise along the vehicle width direction, and a pair of flange portions formed at the tips of the respective rising portions,
Joining both side portions on one end side of the roof side extension and the pair of flange portions to form a second closed section;
The vehicle body upper structure, wherein the first closed cross section and the second closed cross section are adjacent to each other in the vehicle width direction with the inner panel interposed therebetween . Two said convex parts are provided at intervals in the front and rear,
2. The vehicle body according to claim 1, wherein two first closed cross sections are formed by joining a portion between the two convex portions of the roof side extension to the inner panel. Superstructure.

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