JP2009051367A - Roof structure of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof structure of a vehicle capable of suppressing the local deformation of a roof by a load from a roof carrier. <P>SOLUTION: The roof structure of the vehicle 10 includes a reinforcing member 34 provided on the roof 12 of the vehicle, extending in a vehicle body front-and-rear direction, and having higher rigidity than that of a roof panel 14; an inner rail 18 constituting a roof side rail 16 of the roof 12; a roof carrier 40 attached to the roof 12 outside the reinforcing member 34 in a vehicle width direction via a leg 41; and a coupling member 50 coupling the reinforcing member 34 and the inner rail 18 for pushing out the inner rail 18 outward in the vehicle width direction by being deformed when applied with a load from the roof carrier 40 to the inside of a cabin via the leg 41. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle roof structure.

Since the center of gravity of a vehicle having a sunroof on the roof portion, a vehicle in which a roof carrier is attached to the roof portion and luggage can be loaded on the roof portion (for example, see Patent Document 1), The ease of rollover is increased. In particular, when a vehicle with a roof carrier attached to the roof rolls over, the roof carrier receives a load before the roof portion. Therefore, in this case, the load is concentrated on the roof portion of the vehicle from the leg portion of the roof carrier, and there is a concern that the roof portion is locally deformed in the vicinity of the leg portion.
JP 2001-278113 A

  Therefore, an object of the present invention is to obtain a vehicle roof structure that can suppress local deformation of a roof portion due to a load from a roof carrier.

  In order to achieve the above object, the vehicle roof structure according to claim 1 according to the present invention is provided at the roof portion of the vehicle, extends in the longitudinal direction of the vehicle body, and has a higher rigidity than the roof panel. A member, a rail inner constituting a roof side rail of the roof portion, a roof carrier attached to the roof portion on the outer side in the vehicle width direction with respect to the reinforcing member via legs, the reinforcing member and the rail inner And a connecting member that deforms when receiving a load from the roof carrier through the legs in the vehicle interior direction and pushes the rail inner outward in the vehicle width direction. Yes.

  According to the first aspect of the present invention, the connecting member that connects the reinforcing member and the rail inner member is deformed when a load is applied from the roof carrier to the vehicle interior via the legs, so that the rail inner member is Push outward in the width direction. That is, when the vehicle rolls over, the load applied to the roof carrier in the vehicle interior direction is transmitted to the connecting member, and the connecting member pushes the roof side rail outward in the vehicle width direction.

  Therefore, the torsion of the roof side rail toward the upper side of the vehicle body with the leg portion of the roof carrier as a fulcrum is suppressed, the strength of the roof side rail is suppressed, and the roof carrier (leg) falls down. Can be supported by the connecting member. Therefore, local deformation of the vehicle roof portion can be suppressed.

  The vehicle roof structure according to claim 2 is the vehicle roof structure according to claim 1, wherein the connecting member has a bent portion that opens when the load is received, and the bent portion opens. Thus, the rail inner is pushed out in the vehicle width direction.

  According to the second aspect of the present invention, the connecting member has a bent portion that opens when the load is received, and the bent portion opens to push the rail inner outward in the vehicle width direction. Therefore, a mechanism for pushing out the rail inner, that is, the roof side rail to the outside in the vehicle width direction can be manufactured at low cost.

  As described above, according to the present invention, it is possible to provide a vehicle roof structure capable of suppressing the roof portion from being locally deformed by a load from the roof carrier.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the present invention will be described below in detail based on the embodiments shown in the drawings. FIG. 1 is a schematic perspective view of a vehicle to which a roof carrier is attached, and FIG. 2 is a schematic side view of the vehicle to which a roof carrier is attached. 3 is a schematic cross-sectional view taken along the line XX of FIG. 2 showing the roof structure of the vehicle, and FIG. 4 is a schematic cross-sectional view taken along the line XX of FIG. 2 showing the roof structure when the vehicle rolls over. It is. In each figure, the upward direction of the vehicle body is indicated by arrow UP, the forward direction of the vehicle body is indicated by arrow FR, and the inner side in the vehicle width direction is indicated by arrow IN.

  As shown in FIGS. 1 to 3, a roof portion 12 of an automobile (vehicle) 10 is provided with a roof panel 14 that constitutes a roof of a passenger compartment. On both sides in the vehicle width direction of the roof panel 14, a pair of left and right roof side rails 16 which are highly rigid skeleton members extending in the longitudinal direction of the vehicle body are provided. The roof side rail 16 includes a rail inner 18 disposed on the inner side in the vehicle width direction, a rail outer 22 disposed on the outer side in the vehicle width direction, a rail reinforcement 20 disposed between the rail inner 18 and the rail outer 22, have.

  The rail inner 18 and the rail reinforcement 20 are joined to each other at the upper end side and the lower end side to form a closed cross section as shown in FIG. The rail reinforcement 20 and the rail outer 22 are also joined to each other at the upper end side and the lower end side. That is, the upper end side and the lower end side of the rail inner 18 and the rail outer 22 are joined via the rail reinforcement 20.

  Further, a bulging portion 19 that bulges inward in the vehicle width direction is formed on the rail inner 18 on the vehicle body lower side than the joined upper end side. The bulging portion 19 is provided with a through hole 19A through which a bolt 46 described later is inserted, and the bulging portion 19 has an outer surface in the vehicle width direction so as to be coaxial with the through hole 19A. The nut 48 is previously welded (before joining the rail reinforcement 20 to the rail inner 18).

  Further, the joint portion on the upper end side of the rail inner 18, the rail reinforcement 20, and the rail outer 22 protrudes in a flange shape toward the inside in the vehicle width direction, and this joint portion has an outer end in the vehicle width direction of the roof panel 14. The part 14A is overlapped and joined (hereinafter, this joined part is referred to as a joined part 24). Further, the roof panel 14 on the inner side in the vehicle width direction from the joint portion 24 and the rail outer 22 on the outer side in the vehicle width direction from the joint portion 24 are each bent and formed in a step shape.

  Thereby, the groove part 26 which uses the junction part 24 as a bottom wall is formed in the vehicle body front-back direction in the vehicle width direction both sides of the roof part 12, and a roof carrier is formed in the vehicle body upper direction side of the groove part 26 (joint part 24). 40 can be attached. The roof carrier 40 is a long member formed in a cylindrical shape, and is arranged with the longitudinal direction of the vehicle body as the longitudinal direction.

  The roof carrier 40 is provided with leg rack rails 41 (four in total) at the front and rear end portions in the longitudinal direction of the vehicle body, and each roof rack rail 41 is damaged with respect to the roof panel 14. It is attached to the groove part 26 (joint part 24) through the protector 42 which is a sticking prevention member.

  Boss portions 44 through which the bolts 45 are inserted are provided on the lower surfaces of the protectors 42, and the rail inner 18, the rail reinforcement 20, and the upper end side of the rail outer 22 constituting the groove portion 26, that is, the joint portion 24, and the roof panel. A through-hole (not shown) is formed in the outer end portion 14A in the vehicle width direction of 14 so as to communicate with the bolt 45 and allow the bolt 45 to be inserted therethrough.

  Accordingly, the bolts 45 are inserted into the boss portions 44 provided on the protector 42 from the vehicle body upper side, and the bolts 45 are further inserted into the through holes and screwed into the nuts 47 so that the protector 42 is grooved 26 ( It can be attached to the joint 24). And the roof carrier 40 is attached to the roof part 12 by attaching to this protector 42 the roof rack rail 41 provided in the vehicle body front-back direction front-end direction and rear-end part of the roof carrier 40. As shown in FIG.

  On the other hand, the inner end portion 14B in the vehicle width direction of the roof panel 14 is bent at approximately 90 degrees downward in the vehicle body to improve the strength, and the outer surface in the vehicle width direction has an approximately “L” shape in cross section. A reinforcing member 28 is attached. Further, a lid 30 constituting a sunroof is provided at the center of the roof panel 14 on the vehicle body front side (between the vehicle width direction inner side end portions 14B of the roof panel 14 on the vehicle body front side). The lid 30 is made of glass, and a resin weather strip 32 is attached around the lid 30.

  Further, a sunroof housing that guides (supports) the lid 30 to move in the longitudinal direction of the vehicle body by a moving mechanism (not shown) on the roof portion 12 on the vehicle body lower side of the vehicle width direction inner side end portion 14B of the roof panel 14. (Reinforcing members) 34 extend as a pair of left and right in the longitudinal direction of the vehicle body. Each sunroof housing 34 is made of aluminum extruded in a substantially concave shape in cross-sectional view having flange portions 36 and 38 at the vehicle width direction inner end portion and the vehicle width direction outer end portion, respectively, and has relatively high rigidity ( It is a member that is at least more rigid than the roof panel 14.

  A through hole 38A is formed in the flange portion 38 at the outer end in the vehicle width direction, and a nut 48 is pre-welded to the upper surface of the flange portion 38 so as to be coaxial with the through hole 38A. ing. Further, both end portions in the vehicle width direction of the sunroof housing 33 extending in the vehicle width direction are integrally connected to the front end portion in the vehicle body front-rear direction of each sunroof housing 34, so Both ends in the vehicle width direction of the sunroof housing 35 extending in the vehicle width direction are integrally connected to the rear side in the direction. Thereby, the sunroof housings 33, 34, and 35 are configured so as to have a substantially “A” shape in plan view as a whole (see FIG. 1).

  Further, the sunroof housing 34 and the rail inner 18 are connected by a roof bracket 50 as a connecting member. The roof bracket 50 is located inward in the vehicle width direction from the vehicle body lower side of the groove portion 26 (joint portion 24) to which the protector 42 (roof rack rail 41) on the vehicle body front side, which is the vehicle body upper direction side of the passenger compartment. The length of the roof bracket 50 in the longitudinal direction of the vehicle body is not less than the length of the protector 42 in the longitudinal direction of the vehicle body. The rear end 52 of the roof bracket 50 in the longitudinal direction of the vehicle body is bent at approximately 90 degrees downward in the vehicle body in order to improve the strength.

  Further, the vehicle width of the protector 42 in the vehicle bracket direction substantially central portion of the roof bracket 50, more precisely, in a state where the roof bracket 50 is installed between the sunroof housing 34 and the rail inner 18 (as viewed in cross section shown in FIG. 3). The position portion directly below the inner side end portion 42A (directly below the inner end portion 41A in the vehicle width direction of the roof rack rail 41) or the inner portion in the vehicle width direction from the position directly below it is bent at a predetermined angle toward the vehicle body upward direction. This portion is a bent portion 54.

  Therefore, a substantially semicircular cutout 52A for facilitating bending at a predetermined angle is formed on the lower surface of the vehicle body longitudinal direction rear end 52 at the bent portion 54 of the roof bracket 50. Is formed in a substantially boomerang shape in cross-sectional view as a whole. Note that the shape of the notch 52A is not limited to the illustrated shape, and may be formed in, for example, a substantially isosceles triangular shape.

  Further, the inner end portion 56 of the roof bracket 50 in the vehicle width direction is slightly bent downward in the vehicle body so as to be parallel to the flange portion 38 at the outer end portion of the sun roof housing 34 in the vehicle width direction. A through hole 56 </ b> A for inserting the bolt 46 is formed in the inner end portion 56. Therefore, the vehicle width direction inner side end portion 56 of the roof bracket 50 is overlapped with the flange portion 38 of the sunroof housing 34 from the vehicle body lower side, and further, the bolt 46 is inserted from the vehicle body lower direction side. By being screwed into a nut (weld nut) 48 welded to the upper surface, the flange portion 38 is fastened (fixed).

  Similarly, the outer end 58 in the vehicle width direction of the roof bracket 50 is slightly bent outward in the vehicle width direction and slightly outward in the vehicle width so as to be parallel to the bulging portion 19 of the rail inner 18. A through hole 58A for inserting the bolt 46 is formed in the outer end 58 in the width direction. Therefore, the outer end 58 in the vehicle width direction of the roof bracket 50 is overlapped with the bulging portion 19 of the rail inner 18 from the inner side in the vehicle width direction, and further, the bolt 46 is inserted from the inner side in the vehicle width direction. A nut (weld nut) 48 welded to the outer surface in the vehicle width direction of 19 is screwed (fastened) to the bulging portion 19.

  Next, the operation of the roof structure configured as described above will be described with reference to FIG. FIG. 4 shows a state when the automobile (vehicle) 10 rolls over, and the road surface G is on the vehicle body upward direction indicated by an arrow UP.

  In the automobile 10 to which the roof carrier 40 is attached, the roof carrier 40 protrudes from the roof portion 12 toward the upper side of the vehicle body. For this reason, at the time of a roof crash such as when the automobile 10 rolls over, the roof carrier 40 receives the load F from the road surface G or the like before the roof portion 12. The load F causes the roof carrier 40 and the roof rack rail 41 (protector 42) to fall inward in the vehicle width direction, deform the roof panel 14 toward the vehicle interior, and further cause the bent portion 54 of the roof bracket 50 to move in the vehicle interior direction. To deform.

  That is, the bent portion 54 of the roof bracket 50 is disposed directly below the inner end portion 42A of the protector 42 in the vehicle width direction (directly below the inner end portion 41A of the roof rack rail 41 in the vehicle width direction) or on the inner side in the vehicle width direction. Therefore, when the roof rack rail 41 (protector 42) of the roof carrier 40 presses the roof panel 14 toward the vehicle interior, the bent portion 54 of the roof bracket 50 is moved in the direction of arrow A ( It is pushed toward the vehicle interior.

  Then, the bent portion 54 of the roof bracket 50 opens (deforms) so as to extend the roof bracket 50 in the vehicle width direction inner side and the vehicle width direction outer side. Thereby, the load F is distributed in the extending direction of the roof bracket 50, that is, in the vehicle width direction inner side and the vehicle width direction outer side. The sunroof housing 34 is pressed inward in the vehicle width direction by the load F1 distributed inward in the vehicle width direction, and the rail inner 18 is pressed outward in the vehicle width direction by load F2 distributed outward in the vehicle width direction. The

  Here, the sunroof housing 34 is a member having relatively high rigidity. Therefore, the inner end 56 of the roof bracket 50 in the vehicle width direction is restrained from moving inward in the vehicle width by the sunroof housing 34. Therefore, the outer end 58 in the vehicle width direction of the roof bracket 50, that is, the rail inner 18 is strongly pressed outward in the vehicle width, and the roof side rail 16 (the rail inner 18 and the rail reinforcement 20) is pushed out in the vehicle width direction. .

  As a result, the roof side rail 16 is twisted toward the vehicle body upward direction with the groove portion 26 (joint portion 24), which is an attachment portion of the roof carrier 40 via the roof rack rail 41 (protector 42), as a fulcrum (vehicle interior direction side). Deformation of the roof side rail 16 is suppressed, and the fall of the roof carrier 40 (roof rack rail 41) can be supported (suppressed) by the roof bracket 50 together with the roof panel 14. . Therefore, local deformation of the roof portion 12 of the automobile 10 can be suppressed.

  Further, in this roof structure, the sunroof housing 34 and the rail inner 18 are simply connected by a roof bracket 50 having a substantially boomerang shape in cross-sectional view (having the bent portion 54 at the substantially central portion in the vehicle width direction as described above). Since a simple configuration is sufficient, it can be manufactured at low cost. Further, since the nut 48 for attaching the roof bracket 50 to the sunroof housing 34 and the rail inner 18 with the bolt 46 is a weld nut, it is possible to ensure the mounting accuracy thereof and to assemble the bolt 46 for fastening. Can be shortened compared to the case where the weld nut is not used.

  The roof bracket 50 may be made of aluminum or the like. The roof side rail 16 can be pushed outward in the vehicle width direction by pressing the bent portion 54 in the direction of arrow A (in the vehicle interior direction). Any material may be used as long as the material has strength (rigidity). In the illustrated roof bracket 50, the rear end 52 in the longitudinal direction of the vehicle body is bent at approximately 90 degrees toward the lower direction of the vehicle body in order to improve the strength, but the front end portion in the longitudinal direction of the vehicle body is directed downward in the vehicle body. The both ends of the vehicle body in the front-rear direction may be bent at approximately 90 degrees in the vehicle body downward direction.

  Further, the roof bracket 50 is not limited to the illustrated boomerang shape in cross-sectional view. That is, the roof bracket 50 may have any shape as long as the above-described substantially central portion in the vehicle width direction is convex toward the vehicle body upward direction. In the case of the substantially arc shape in cross section, a rigidity reduction portion for reducing the rigidity is formed in the substantially central portion in the vehicle width direction so as to be deformable in the same manner as the roof bracket 50 having the substantially boomerang shape in cross section. It only has to be done.

  Furthermore, the reinforcing member according to the present invention is not limited to the illustrated sunroof housing 34. That is, the automobile 10 is not limited to an automobile with a sunroof. For example, in the case of an automobile provided with a retractable sun visor, a rail (not shown) for sliding the sun visor (not shown), etc. Further, the inner end 56 in the vehicle width direction of the roof bracket (connecting member) 50 may be fastened (fixed) with bolts 46, nuts 48, and the like.

Schematic perspective view of a vehicle with a roof carrier attached Schematic side view of a vehicle with a roof carrier attached Schematic cross-sectional view taken along line XX in FIG. 2 showing the roof structure of the vehicle FIG. 2 is a schematic cross-sectional view taken along the line XX in FIG.

Explanation of symbols

10 Automobile (vehicle)
DESCRIPTION OF SYMBOLS 12 Roof part 14 Roof panel 16 Roof side rail 18 Rail inner 20 Rail reinforcement 22 Rail outer 24 Joint part 26 Groove part 30 Lid 34 Sunroof housing (reinforcement member)
36 Flange part 38 Flange part 40 Roof carrier 41 Roof rack rail (leg part)
50 Roof bracket (connecting member)
54 Bend

Claims (2)

A reinforcing member that is provided on the roof portion of the vehicle, extends in the longitudinal direction of the vehicle body, and is more rigid than the roof panel;
A rail inner constituting a roof side rail of the roof portion;
A roof carrier attached to the roof portion on the outer side in the vehicle width direction with respect to the reinforcing member via legs,
A connecting member that connects the reinforcing member and the rail inner, and deforms when receiving a load from the roof carrier via a leg portion toward a vehicle interior, and pushes the rail inner outward in the vehicle width direction;
A vehicle roof structure characterized by comprising:   2. The vehicle roof according to claim 1, wherein the connecting member has a bent portion that opens when the load is received, and the bent inner portion pushes the rail inner to the outside in the vehicle width direction. Construction.

Images