JP2012106563A - Resin roof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin roof panel that can improve aerodynamic characteristics of a vehicle and suppress deformation of a roof panel body even if a load acts on the roof panel body from above.SOLUTION: In the resin roof panel 10, a recess 18 extending in a longitudinal direction of the vehicle is formed on a top surface 12A of the roof panel body 12, meanwhile a reinforcing rib 14 extending in the longitudinal direction along a combination part 12E of a pair of recess formation surfaces 12C, 12D forming the recess 18 is formed on a bottom surface 12G of the roof panel body 12. The reinforcing rib 14 strides over the combination part 12E in a width direction of the vehicle.

Description

  The present invention relates to a resin roof panel constituting a roof of a vehicle.

  2. Description of the Related Art Conventionally, a resin roof panel in which reinforcing ribs extending in the vehicle front-rear direction are formed on the lower surface is known (see, for example, Patent Document 1).

JP 2008-68765 A JP 2010-30465 A

  However, the roof panel has a flat upper surface. Therefore, there is room for improvement in order to improve the aerodynamic characteristics of the vehicle. Even when the shape of the upper surface of the roof panel is devised to improve the aerodynamic characteristics of the vehicle, the deformation of the roof panel is suppressed when a load is applied to the upper surface of the roof panel from above. It is desirable.

  The present invention has been made in view of the above problems, and can improve the aerodynamic characteristics of the vehicle and suppress deformation of the roof panel body even when a load acts on the roof panel body from above. An object of the present invention is to provide a resin roof panel that can be used.

  In order to solve the above problems, the resin roof panel according to claim 1 is formed in a plate shape extending in the vehicle front-rear direction and the vehicle width direction, and forms a part of a recess extending in the vehicle front-rear direction. A resin roof panel main body having a dent forming surface, and an adjacent surface that is formed side by side in the vehicle width direction and forms a bent surface with the dent forming surface, and a lower surface of the roof panel main body And a reinforcing rib extending in the vehicle front-rear direction along the mating portion between the recess forming surface and the adjacent surface, and straddling the mating portion in the vehicle width direction. ing.

  According to this resin roof panel, a recess extending in the vehicle front-rear direction is formed on the upper surface of the roof panel body. Therefore, compared with the case where there is no depression, the projection area of the roof panel body when viewed from the front of the vehicle can be reduced by the amount of the depression. Thereby, the aerodynamic characteristic of the vehicle can be improved.

  On the other hand, a reinforcing rib extending in the vehicle front-rear direction is formed on the lower surface of the roof panel main body along a joining portion between a recess forming surface forming a bent surface and an adjacent surface. This reinforcing rib straddles the above-mentioned mating portion in the vehicle width direction. Therefore, since the rigidity of the peripheral portion of the mating portion is improved by the reinforcing rib, even when a load acts on the roof panel main body from above, it is possible to suppress deformation of the roof panel main body starting from the mating portion. it can.

  The resin roof panel according to claim 2 is the resin roof panel according to claim 1, wherein the roof panel body has a plurality of the recess forming surfaces and the adjacent surfaces, and the reinforcing ribs are the mating portions. And a plurality of connecting ribs that are integrally formed on the lower surface of the roof panel body and connect the plurality of reinforcing ribs.

  According to this resin roof panel, connecting ribs for connecting a plurality of reinforcing ribs are integrally formed on the lower surface of the roof panel main body. Accordingly, the rigidity of the roof panel body is improved and the rigidity of the plurality of reinforcing ribs is also improved, so that the deformation of the resin roof panel can be further suppressed.

  The resin roof panel according to claim 3 is the resin roof panel according to claim 1 or 2, wherein the recess forming surface and the adjacent surface have a V-shaped cross section cut along the vehicle width direction. It is set as the structure which forms the said hollow while forming.

  It is assumed that the joint portion between the recess forming surface and the adjacent surface having a V-shaped cross section is likely to be a starting point of deformation when a load is applied to the roof panel body from above. However, according to this resin roof panel, since the peripheral portion of the mating portion is reinforced by the reinforcing rib, the deformation of the roof panel body starting from the mating portion can be suppressed.

  The resin roof panel according to claim 4 is the resin roof panel according to claim 1 or 2, wherein the adjacent surface is formed on both sides in the vehicle width direction of the recess forming surface, and the reinforcing rib is one side. The said adjacent surface and one said fitting part of the said hollow formation surface, and the said other fitting part of the said other adjacent surface and the said hollow formation surface are comprised across the vehicle width direction.

  According to this resin roof panel, the reinforcing rib straddles the one mating portion of the one adjacent surface and the depression forming surface and the other mating portion of the other adjacent surface and the depression forming surface in the vehicle width direction. Yes. Therefore, the structure can be simplified as compared with the case where the reinforcing ribs are independently formed corresponding to the mating portions.

  A resin roof panel according to a fifth aspect is the resin roof panel according to the first aspect, wherein the recess forming surface is formed so as to be directed toward the vehicle lower side toward the vehicle width direction one side, and the adjacent surface is formed. The recess forming surface is formed on the other side in the vehicle width direction and extends in the vehicle width direction.

  According to this resin roof panel, the recess forming surface is formed so as to be directed toward the vehicle lower side toward the one side in the vehicle width direction, and is formed on the other side in the vehicle width direction of the recess forming surface. Reinforcing ribs are formed along the mating portion with the adjacent surface extending to the surface. Therefore, for example, a mating portion between the dent forming surface and the other adjacent surface formed on one side of the dent forming surface on the vehicle width direction and positioned on the vehicle lower side than the above-described mating portion. As compared with the case where the reinforcing rib is formed along the, the amount of protrusion of the reinforcing rib to the vehicle lower side (inner side) can be suppressed.

  As described in detail above, according to the resin roof panel of the present invention, the aerodynamic characteristics of the vehicle can be improved, and even when a load acts on the roof panel body from above, the roof panel body can be deformed. Can be suppressed.

It is a top view of the resin roof panel which concerns on 1st embodiment of this invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. FIG. 4 is a sectional view taken along line 4-4 of FIG. It is sectional drawing corresponding to FIG. 2 which shows the 1st modification of the resin roof panel which concerns on 1st embodiment of this invention. It is sectional drawing corresponding to FIG. 2 which shows the 2nd modification of the resin roof panel which concerns on 1st embodiment of this invention. It is a top view which shows the 3rd modification of the resin roof panel which concerns on 1st embodiment of this invention. It is sectional drawing corresponding to FIG. 2 of the resin roof panel which concerns on 2nd embodiment of this invention. It is a top view which shows the modification of the resin roof panel which concerns on 2nd embodiment of this invention. It is a top view of the resin roof panel which concerns on 3rd embodiment of this invention. It is the 11-11 line sectional view of FIG. It is sectional drawing corresponding to FIG. 11 which shows the 1st modification of the resin roof panel which concerns on 3rd embodiment of this invention. It is sectional drawing corresponding to FIG. 11 which shows the 2nd modification of the resin roof panel which concerns on 3rd embodiment of this invention.

[First embodiment]
First, a first embodiment of the present invention will be described.

  In each figure, an arrow UP, an arrow FR, and an arrow OUT indicate the vehicle vertical direction upper side, the vehicle longitudinal direction front side, and the vehicle width direction outer side (right side).

  As shown in FIG. 1, the resin roof panel 10 according to the first embodiment of the present invention constitutes the roof of a vehicle such as a passenger car, for example, and is entirely formed of resin. The resin roof panel 10 includes a roof panel main body 12, a pair of reinforcing ribs 14, and a pair of connecting ribs 16.

  The roof panel main body 12 is formed in a plate shape extending in the vehicle front-rear direction and the vehicle width direction. The roof panel body 12 is formed in a plane-symmetric shape with the center in the vehicle width direction as the center. Therefore, here, the configuration of the roof panel body 12 on the right side of the vehicle width direction center is mainly described, and the configuration of the left side of the vehicle width direction center is about the configuration of the right side of the vehicle width direction center. The description will be omitted as it is referred to.

  As shown in FIGS. 2 and 3, the top surface 12A of the roof panel body 12 has an outer surface 12B and a pair of recess forming surfaces 12C and 12D in this order from the right end to the center of the vehicle width direction. is doing. The outer side surface 12B and the one depression forming surface 12C are formed continuously in the vehicle width direction, and form a curved surface that is convex on the vehicle upper side.

  The other dent forming surface 12D is formed continuously with the dent forming surface 12D adjacent to the center of the vehicle width direction of the roof panel body 12 in the vehicle width direction. A convex curved surface is formed. As shown in FIG. 1, the outer surface 12 </ b> B and the pair of recess forming surfaces 12 </ b> C and 12 </ b> D extend in the vehicle front-rear direction and are formed over the entire length of the roof panel body 12 in the vehicle front-rear direction. .

  Further, as shown in FIGS. 2 and 3, the pair of recess forming surfaces 12 </ b> C and 12 </ b> D are connected to each other at a mating portion 12 </ b> E extending in the vehicle front-rear direction. As shown in FIG. 1, one mating portion 12 </ b> E and the other mating portion 12 </ b> E approach each other from the vehicle front side end of the roof panel body 12 toward the vehicle front-rear direction center, and Each is formed so as to be curved away from the center in the vehicle front-rear direction toward the end on the vehicle rear side.

  Further, as shown in FIGS. 2 and 3, the pair of recess forming surfaces 12C and 12D connected to each other by the mating portion 12E is a bent surface 12F having a V-shaped cross section cut along the vehicle width direction. Is forming. A recess 18 extending in the vehicle front-rear direction is formed on the upper surface 12A of the roof panel body 12 by a pair of recess forming surfaces 12C and 12D forming the bent surface 12F.

  In the present embodiment, one dent forming surface 12C corresponds to the dent forming surface in the present invention, and the other dent forming surface 12D corresponds to the adjacent surface in the present invention.

  As shown in FIG. 1, the pair of reinforcing ribs 14 extend in the vehicle front-rear direction along the mating portion 12E. The pair of reinforcing ribs 14 are formed integrally with the lower surface 12G of the roof panel body 12 as shown in FIG. In addition, the reinforcing rib 14 straddles the mating portion 12E in the vehicle width direction. That is, the reinforcing rib 14 is formed such that the mating portion 12E is positioned between the end surfaces 14A on both sides in the vehicle width direction.

  The pair of connecting ribs 16 are formed integrally with the lower surface 12G of the roof panel body 12, as shown in FIGS. The pair of connecting ribs 16 extend in the vehicle width direction and are formed side by side in the vehicle front-rear direction. Each connecting rib 16 is formed over the entire length of the roof panel body 12 in the vehicle width direction, and connects one reinforcing rib 14 and the other reinforcing rib 14.

  Next, the operation and effect of the first embodiment of the present invention will be described.

  According to the resin roof panel 10 according to the first embodiment of the present invention, the upper surface 12A of the roof panel body 12 is formed with a recess 18 extending in the vehicle front-rear direction. Therefore, for example, as compared with the case where the depression 18 is not provided as indicated by the imaginary line L, the projected area of the roof panel body 12 when viewed from the front of the vehicle can be reduced by the amount of the depression 18 formed. Thereby, the aerodynamic characteristic of the vehicle can be improved.

  On the other hand, a reinforcing rib 14 is formed on the lower surface 12G of the roof panel main body 12 so as to extend in the vehicle front-rear direction along the mating portion 12E of the pair of recess forming surfaces 12C and 12D forming the bending surface 12F. The reinforcing rib 14 straddles the above-described mating portion 12E in the vehicle width direction. Accordingly, since the rigidity of the peripheral portion of the mating portion 12E is improved by the reinforcing rib 14, even when a load is applied to the roof panel main body 12 from above, the deformation of the roof panel main body 12 with the mating portion 12E as a starting point. Can be suppressed.

  In particular, it is assumed that the mating portion 12E of the pair of recess forming surfaces 12C and 12D having a V-shaped cross section is likely to be a starting point of deformation when a load is applied to the roof panel body 12 from above. However, according to the resin roof panel 10, since the peripheral portion of the mating portion 12E is reinforced by the reinforcing rib 14, deformation of the roof panel body 12 starting from the mating portion 12E can be suppressed.

  A connecting rib 16 that connects the pair of reinforcing ribs 14 is integrally formed on the lower surface 12G of the roof panel body 12. Thereby, the rigidity of the roof panel body 12 is improved and the rigidity of the pair of reinforcing ribs 14 is also improved, so that the deformation of the resin roof panel 10 can be further suppressed.

  Further, since the reinforcing ribs 14 and the connecting ribs 16 are formed on the roof panel body 12, the rigidity of the roof panel body 12 can be improved, so that the NV (noise vibration) performance can also be improved. Moreover, since the reinforcing ribs 14 and the connecting ribs 16 are formed on the lower surface 12G of the roof panel body 12, the appearance of the resin roof panel 10 can be ensured.

  Furthermore, since the entire resin roof panel 10 is made of resin, the roof of the vehicle can be reduced in weight as compared with a conventional metal roof panel.

  Next, a modification of the first embodiment of the present invention will be described.

  In the first embodiment of the present invention, the upper surface 12A of the roof panel body 12 has a pair of recesses 18 formed in the vehicle width direction as shown in FIG. 2, but as shown in FIG. In addition, one recess 18 may be formed at the center in the vehicle width direction.

  Further, as shown in FIG. 1, the connecting rib 16 is formed over the entire length of the roof panel body 12 in the vehicle width direction. However, as shown in FIG. 6, the connecting rib 16 is interposed between the pair of reinforcing ribs 14. It may be formed. In this case, the pair of connecting ribs 16 may intersect each other as shown in FIG.

  For example, when the rigidity of the roof panel body 12 can be ensured, the connecting rib 16 may be omitted.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  The resin roof panel 20 according to the second embodiment of the present invention shown in FIG. 8 has a configuration changed as follows with respect to the resin roof panel 10 according to the first embodiment of the present invention described above.

  That is, the upper surface 12A of the roof panel body 12 has a center surface 12H in addition to the outer surface 12B and the pair of recess forming surfaces 12C and 12D. Further, the outer surface 12B extends in the vehicle width direction, and the one recess forming surface 12C is inclined with respect to the vehicle width direction so as to go to the vehicle lower side as it goes inward in the vehicle width direction. The outer surface 12B and the recess forming surface 12C are connected to each other at a mating portion 12I extending in the vehicle front-rear direction, and form a bent surface 12J that protrudes upward in the vehicle and inward in the vehicle width direction.

  The other recess forming surface 12D is inclined with respect to the vehicle width direction so as to be directed toward the vehicle upper side as it goes inward in the vehicle width direction, and the center surface 12H extends in the vehicle width direction. The recess forming surface 12D and the center surface 12H are formed side by side in the vehicle width direction, and are connected to each other at a mating portion 12K extending in the vehicle front-rear direction. Further, the recess forming surface 12D and the central surface 12H form a bent surface 12L that protrudes upward in the vehicle and outward in the vehicle width direction.

  Each reinforcing rib 14 extends in the vehicle longitudinal direction along the mating portion 12I and straddles the mating portion 12I in the vehicle width direction.

  In this embodiment, one dent forming surface 12C corresponds to the dent forming surface in the present invention, and the outer surface 12B corresponds to the adjacent surface in the present invention. Further, the mating portion 12I corresponds to the mating portion in the present invention.

  Next, with respect to the operation and effects of the second embodiment of the present invention, differences from the above-described first embodiment of the present invention will be described.

  According to the resin roof panel 20 according to the second embodiment of the present invention, the vehicle is provided on the lower surface 12G of the roof panel main body 12 along the matching portion 12I of the outer surface 12B forming the bent surface 12J and the recess forming surface 12C. Reinforcing ribs 14 extending in the front-rear direction are formed. The reinforcing rib 14 straddles the above-described mating portion 12I in the vehicle width direction. Accordingly, since the rigidity of the peripheral portion of the mating portion 12I is improved by the reinforcing rib 14, even when a load acts on the roof panel main body 12 from above, the deformation of the roof panel main body 12 with the mating portion 12I as a starting point. Can be suppressed.

  Further, since the reinforcing rib 14 is formed along the mating portion 12I located on the vehicle upper side than the mating portion 12E of the pair of recess forming surfaces 12C and 12D, for example, the reinforcing rib 14 is formed along the mating portion 12E. Compared with the case where it did, the protrusion amount to the vehicle lower side (indoor side) of the reinforcement rib 14 can be suppressed.

  Next, a modification of the second embodiment of the present invention will be described.

  In the second embodiment of the present invention, the reinforcing rib 14 is formed along the mating portion 12I. However, as shown in FIG. 9, it may be formed along the mating portion 12K. Even if comprised in this way, the effect | action and effect similar to the above can be show | played. In this case, the pair of reinforcing ribs 14 may be connected by the connecting rib 16.

  In this modification, the recess forming surface 12D corresponds to the recess forming surface in the present invention, and the center surface 12H corresponds to the adjacent surface in the present invention. Further, the mating portion 12K corresponds to the mating portion in the present invention.

  Further, reinforcing ribs 14 may be formed along each of the mating portions 12I and 12K.

[Third embodiment]
Next, a third embodiment of the present invention will be described.

  The resin roof panel 30 according to the third embodiment of the present invention shown in FIG. 10 and FIG. 11 is modified as follows with respect to the resin roof panel 10 according to the first embodiment of the present invention described above. .

  That is, the top surface 12A of the roof panel main body 12 has the outer surface 12M, the inclined surface 12N, and the center surface 120 in order from the right end to the center of the vehicle width direction.

  The outer side surface 12M extends in the vehicle width direction, and the inclined surface 12N is inclined with respect to the vehicle width direction so as to go to the vehicle lower side toward the vehicle width direction inner side. The outer surface 12M and the inclined surface 12N are formed side by side in the vehicle width direction, and are connected to each other at a mating portion 12P extending in the vehicle front-rear direction. Further, the outer surface 12M and the inclined surface 12N form a bent surface 12Q that is convex on the vehicle upper side and on the vehicle width direction inner side.

  The center surface 120 is extended in the vehicle width direction. The central surface 120 is formed side by side with the inclined surface 12N in the vehicle width direction, and is connected to each other at a mating portion 12R extending in the vehicle front-rear direction. Further, the central surface 12O forms a bent surface 12S that is convex with the inclined surface 12N on the vehicle lower side and the vehicle width direction outer side. A recess 38 extending in the vehicle front-rear direction is formed at the center of the upper surface 12A of the roof panel body 12 by a pair of inclined surfaces 12N and a pair of center surfaces 12O.

  On the other hand, a pair of reinforcing ribs 34 are integrally formed on the lower surface 12G of the roof panel body 12. Each reinforcing rib 34 extends in the vehicle front-rear direction along the mating portion 12P and the mating portion 12R. Each reinforcing rib 34 straddles one mating portion 12P and the other mating portion 12R in the vehicle width direction.

  A pair of connecting ribs 36 are formed on the lower surface 12G of the roof panel body 12. The pair of connecting ribs 36 extend in the vehicle width direction and are formed side by side in the vehicle front-rear direction. Each connecting rib 36 is formed over the entire length of the roof panel body 12 in the vehicle width direction, and connects one reinforcing rib 34 and the other reinforcing rib 34.

  In the present embodiment, the inclined surface 12N corresponds to the recess forming surface in the present invention, and the outer surface 12M and the central surface 120 correspond to the adjacent surfaces in the present invention. Further, the mating part 12P and the mating part 12R correspond to the mating part in the present invention.

  Next, the operation and effect of the third embodiment of the present invention will be described.

  According to the resin roof panel 30 according to the third embodiment of the present invention, the upper surface 12A of the roof panel body 12 is formed with a recess 38 extending in the vehicle front-rear direction. Therefore, for example, as compared with the roof panel body 12 that does not have the recess 38 as indicated by the imaginary line L, the projection area of the roof panel body 12 when viewed from the front of the vehicle is reduced by the amount of the formation of the recess 38. Can do. Thereby, the aerodynamic characteristic of the vehicle can be improved.

  On the other hand, on the lower surface 12G of the roof panel body 12, a mating portion 12P of the outer surface 12M and the inclined surface 12N forming the bent surface 12Q, and a mating portion 12R of the inclined surface 12N and the central surface 12O forming the bent surface 12S are formed. A reinforcing rib 34 extending in the vehicle front-rear direction is formed. The reinforcing rib 34 straddles the mating portion 12P and the mating portion 12R in the vehicle width direction. Therefore, since the rigidity of the peripheral portions of the mating portions 12P and 12R is improved by the reinforcing rib 34, even when a load is applied to the roof panel main body 12 from above, the roof panel starting from the mating portions 12P and 12R is used. The deformation of the main body 12 can be suppressed.

  A connecting rib 36 that connects the pair of reinforcing ribs 34 is integrally formed on the lower surface 12G of the roof panel body 12. Thereby, the rigidity of the roof panel body 12 is improved and the rigidity of the pair of reinforcing ribs 34 is also improved, so that the deformation of the resin roof panel 30 can be further suppressed.

  The reinforcing rib 34 straddles the mating portion 12P and the mating portion 12R in the vehicle width direction. Therefore, the structure can be simplified as compared with the case where the reinforcing ribs 34 are independently formed corresponding to the mating portions 12P and 12R.

  Further, since the reinforcing ribs 34 and the connecting ribs 36 are formed on the roof panel main body 12, the rigidity of the roof panel main body 12 can be improved, so that the NV (noise vibration) performance can also be improved. Moreover, since the reinforcing ribs 34 and the connecting ribs 36 are formed on the lower surface 12G of the roof panel body 12, the appearance of the resin roof panel can be ensured.

  Furthermore, since the entire resin roof panel 30 is made of resin, the roof of the vehicle can be reduced in weight as compared with a conventional metal roof panel.

  Next, a modification of the third embodiment of the present invention will be described.

  In the third embodiment of the present invention, the reinforcing rib 34 straddles the mating portion 12P and the mating portion 12R in the vehicle width direction, but as shown in FIGS. 12 and 13, the mating portion 12P and the mating portion 12R. Only one of these may be straddled in the vehicle width direction.

  In the modification shown in FIG. 13, the pair of reinforcing ribs 34 may be connected by connecting ribs 36.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

10, 20, 30 Resin roof panel 12 Roof panel body 12A Upper surface 12B, 12M Outer side surface 12C, 12D Indentation surface 12E, 12I, 12K, 12P, 12R Matching portion 12F, 12J, 12L, 12Q, 12S Bending surface 12G Lower surface 12H , 12O Central surface 12N Inclined surface 14, 34 Reinforcement ribs 16, 36 Connection ribs 18, 38

Claims (5)

It is formed in a plate shape extending in the vehicle front-rear direction and the vehicle width direction, and is formed side by side in the vehicle width direction, forming a recess forming surface that forms part of a recess extending in the vehicle front-rear direction, and the recess forming surface. A resin roof panel main body having an adjacent surface forming a bent surface with the depression forming surface;
It is integrally formed on the lower surface of the roof panel body, extends in the vehicle front-rear direction along the mating portion between the recess forming surface and the adjacent surface, and straddles the mating portion in the vehicle width direction. Reinforcing ribs,
Resin roof panel with The roof panel body has a plurality of the recess forming surfaces and the adjacent surfaces,
A plurality of the reinforcing ribs are formed along each of the mating portions,
It is integrally formed on the lower surface of the roof panel body, and includes a connecting rib that connects the plurality of reinforcing ribs,
The resin roof panel according to claim 1. The recess forming surface and the adjacent surface have a V-shaped cross section cut along the vehicle width direction and form the recess.
The resin roof panel according to claim 1 or 2. The adjacent surfaces are formed on both sides of the dent forming surface in the vehicle width direction,
The reinforcing rib straddles one of the mating portions of the one adjacent surface and the depression forming surface and the other mating portion of the other adjacent surface and the depression forming surface in the vehicle width direction. ,
The resin roof panel according to claim 1 or 2. The dent forming surface is formed so as to go to the vehicle lower side as it goes to the vehicle width direction one side,
The adjacent surface is formed on the other side in the vehicle width direction of the recess forming surface and extends in the vehicle width direction.
The resin roof panel according to claim 1.