JP4511962B2 - Roof trim terminal holding structure - Google Patents

Description

  The present invention relates to a terminal trim structure for a roof trim that is laid on the passenger compartment side of an automobile roof panel.

  Conventionally, a roof trim is laid as an interior material on the passenger compartment side of a roof panel of an automobile. A roof trim is generally a plate-like resin base material such as a resin foam base material or a glass fiber compound resin base material, which is formed into a shape generally along the roof panel and trimmed to the shape of the portion where the outer periphery is laid. It is. Generally, a skin material is attached to the indoor side of the roof trim, thereby imparting design properties.

  In this type of roof trim, various accessories for the convenience of passengers are often attached as a module facing the interior side. Typical accessories include a sun visor, an assist grip (assist handle), a dome lamp (map lamp), and the like. In addition, on the surface opposite to the indoor side of the roof trim, various functional parts such as wiring for supplying power to the map lamp (wire harness), felt for sound insulation, shock absorbers, and the like are arranged. Yes. In order to lay the roof trim on the roof panel, various attachment clips are used, and these clips are often used also as accessory attachment clips.

  Recently, airbags (curtain shield airbags) are often disposed in the vicinity of both side edges of the roof trim in a folded state so that they can be expanded and deployed. Curtain shield airbags work to reduce the risk of injury from occupants colliding with the sides of the interior of a car in the event of a car crash, etc., and are inflated when a strong impact is detected. It can be developed downward from the vicinity of the ceiling along the side of the room. At this time, the airbag that is folded and stored on the back side of the roof trim (the side opposite to the indoor side) is removed from other interior materials such as the opening trim when the roof trim terminal is deployed, In general, it is configured so that it can be expanded from an open portion.

  The end of the roof trim is preferably covered with another interior material (opening trim or the like) so that the end face of the base material is not visible to the occupant because of the appearance problem. On the other hand, when curtain shield airbags are installed, usually the curtain shield airbags folded and stored near both side edges on the back side of the roof trim are quickly deployed in the event of an emergency such as a car crash. In order to do so, the end of the roof trim needs to be easily removed by the deployment force of the curtain shield airbag. Therefore, the structure of the terminal portion of the roof trim is required to be an appropriate structure in which the end face is usually hidden and the terminal can be easily detached in an emergency.

  For example, if the end of the roof trim is strongly engaged with another interior material, the airbag may not be deployed or the deployment may be delayed. If the time from when the impact is sensed until the airbag is deployed, the ability to protect the occupant may be reduced.

Therefore, as the structure of the terminal portion of the conventional roof trim, the roof trim terminal can be easily deformed or flexible, and is made free without being completely fixed to other interior materials. In order to hide the end face, a structure is often employed in which only a small width portion of the end of the roof trim is covered with another interior material (so that the airbag can be easily detached by the impact of deployment). Such terminal restraining structures are disclosed in, for example, Patent Documents 1 to 8.
Japanese Patent Laid-Open No. 7-117605 JP-A-10-119707 JP 2000-71928 A JP 2001-246989 A JP 2002-154400 A JP 2002-321484 A US Pat. No. 6,183,004 US Pat. No. 6,523,887

  In the conventional terminal restraining structure as described above, when the occupant touches the vicinity of the terminal of the roof trim with his / her hand, the terminal of the roof trim is deformed in the direction toward the back side, that is, is easily dented (easy to hit). Thus, if it is easily deformed, the texture as an interior material cannot be maintained. In addition, the roof trim terminal may be plastically deformed in some cases. In this case, the roof trim terminal is disengaged, or the airbag deployment speed and direction are affected. There is also a risk that the bag will not be deployed well and the occupant protection performance will be reduced.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a roof trim terminal restraining structure that allows the terminal of the roof trim to be easily detached when the airbag is deployed, but that is not easily deformed even when the passenger touches the hand. Is to provide.

In order to achieve the above object, a roof trim terminal restraining structure according to the present invention is a roof trim terminal restraining structure laid on the passenger compartment side of an automobile roof panel, and is opened at the edge of the roof panel. The trim is fitted and the opening trim has a fin extending to the passenger compartment side, and this fin overlaps the passenger compartment side of the end portion of the roof trim, and a clip is further fitted to the edge of the roof panel. The clip has a holding portion that extends toward the passenger compartment side and abuts against a surface of the end portion of the roof trim that is opposite to the passenger compartment side. The restraining portion extends along the direction in which the end of the roof trim is displaced so as to restrain the end of the roof trim from being displaced to the opposite side of the passenger compartment.

  According to this configuration, the end of the roof trim is covered with the fins of the opening trim, so that the appearance can be improved. When the curtain shield airbag is inflated and force is applied in the direction toward the passenger compartment near the end of the roof trim by the curtain shield airbag, the end of the roof trim is only restrained by the fin of the opening trim. Therefore, it is possible to easily remove the fin from the fin by making the fin flexible or setting the overlap width to an appropriate narrow width. On the other hand, if the occupant touches the vicinity of the end of the roof trim and the force is applied in the opposite direction to the occupant's cabin side, the clip restraining part Is in contact with the opposite surface, it is possible to suppress the deformation of the roof trim.

  In the present invention, when the curtain shield airbag is deployed in the passenger compartment, the clip restraining portion is located in the passenger compartment side wall near the gap formed by the roof trim being removed. Therefore, it is preferable that the clip holding portion has a smooth surface on the passenger compartment side along the deployment direction of the curtain shield airbag so that the curtain shield airbag can be smoothly deployed. The curtain shield airbag can be prevented from being damaged during deployment.

  According to the present invention, the end of the roof trim is covered with the opening trim fins, so that the appearance is good, and the curtain airbag can be easily detached when the curtain shield airbag is deployed. Can be deployed. In addition, the use of a clip having a restraining portion that abuts the surface of the terminal portion of the roof trim that is opposite to the passenger compartment side prevents the roof trim from being deformed so that the roof trim becomes inadvertent. It is possible to suppress the disengagement, maintain the curtain shield airbag in a well-developed manner, and maintain occupant protection performance.

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

  FIG. 1A is a perspective view of the front upper right portion of the passenger compartment showing the passenger compartment of an example passenger car to which the terminal restraint structure of the present embodiment is applied.

  In this passenger car, a roof panel 30 (a roof inner panel 31, an outer panel 32, a side molding panel (not shown), etc .; see FIG. 1B) is supported by A, B, C pillar panels (not shown). It has a general configuration. A front window 2 and a door (only the side window 1 is shown) are disposed at the opening between the pillars.

  Pillar garnishes (only A and B pillar garnishes 3 and 4 are shown) and a roof trim 10 are laid on each pillar panel and roof panel as interior materials. These interior materials work to enhance designability, safety, soundproofing and the like. Although not shown, a door trim is similarly laid on the door panel.

  The roof trim 10 is a molding trim, and generally uses a known thermoformable resin base material (a urethane resin base material in which glass fiber mats are laminated or a mixed fiber mat base material of glass fibers and thermoplastic resin) as a roof panel 30. It may be formed into a shape along (roof inner panel 31). Further, the roof trim 10 may further include a skin material (nonwoven fabric or knit; not shown) that is adhered to the passenger compartment side of the resin base material and functions to improve design properties.

  The assist grip 6 is incorporated in the roof trim 10 as a subassembly or module. Although not shown, other accessories such as a sun visor and a map lamp are also incorporated in the roof trim 10 as appropriate. The roof trim 10 can be configured to be fixed to the roof panel 30 at the same time by attaching these accessories to the roof panel 30 with clips.

  In addition, as shown by a broken line in FIG. 1A, the passenger car includes a curtain shield airbag (CSA) between the rear surface of the roof trim 10 and the roof panel 30 in the vicinity of the terminal on the side of the roof trim 10. ) 5 is arranged. The curtain shield airbag 5 is usually wound and stored in a cylindrical shape, and in the event of an unexpected accident, the curtain shield airbag 5 is inflated when an impact is detected, and extends from the roof trim 10 toward the side window 1. , Literally deployed along the inner surface of the car in the form of a curtain.

  In order for the curtain shield airbag 5 arranged on the back side of the roof trim 10 to be deployed in the vehicle interior in this way, the structure of the terminal portion of the roof trim 10 is that the deployed curtain shield airbag 5 is applied. It is designed to be easily detached when touching. A sectional view of this terminal portion is shown in FIG.

  At the opening edge portion where the door is disposed where the end of the roof trim 10 is located, the roof inner panel 31 and the outer roof panel 32 are welded and joined to the roof panel 30 to form a flange 33. In the portion where the airbag 5 is disposed, the roof trim 10 is located away from the roof panel 30 in the width direction of the vehicle so as to ensure a long space with the roof panel 30 (roof inner panel 31). It extends to. Thereafter, the roof trim 10 is bent in the direction of the roof panel 30 in the vicinity of the terminal and reaches the vicinity of the flange 33 of the roof panel 30.

  An opening trim 20 having a flange holding portion 21 that is U-shaped so as to wrap the flange 33 of the roof panel 30 is attached as an edge material. The opening trim 20 is manufactured by arranging a core material in an elastomeric soft resin and extruding it. The opening trim 20 has a long configuration along the edge of the opening. It is mounted by fitting with a flange (33 etc.).

  The opening trim 20 further includes a soft fin 22 extending from the flange holding portion 21 toward the vehicle interior side at a portion in contact with the roof trim 10. The fin 22 has a width of about 10 to 20 mm and can be formed integrally with the flange holding portion 21. This fin 22 overlaps the interior of the vehicle interior of the terminal on the side of the roof panel 30, whereby the end surface of the roof panel 30 is covered and concealed when viewed from the interior of the interior of the vehicle. .

At this time, the overlap of the terminal of the roof panel 30 and the fin 22 of the opening trim 20 is set to a slight width of about several mm to 10 mm. As a result, when a force is applied to the roof trim 10 as indicated by the arrow F ₁ with the pressure at which the curtain shield airbag 5 is deployed, the end of the roof trim 10 easily disengages from the fin 22 of the opening trim 20, and the roof trim 10 A gap is formed between the terminal and the fin 22 of the opening trim 20, and the curtain shield airbag 5 can be instantaneously deployed from this gap. In this way, the occupant can be effectively protected by allowing the curtain shield airbag 5 to be instantaneously deployed along the inner surface of the automobile.

  In the present embodiment, the clip 40 is further mounted between the flange 33 of the roof panel and the flange holding portion 21 of the opening trim 20. The clip 40 is preferably provided in the vicinity of the boundary between the roof trim 10 and the A pillar garnish 3, but an appropriate number of clips 40 can be mounted at appropriate positions depending on the size and structure of the vehicle.

  The clip 40 can be formed of a metal such as stainless steel or a resin such as polyethylene. As shown in FIG. 2, the clip 40 is held in a U shape so as to sandwich the flange 33 of the roof panel 30. A portion 41 is provided. The holding legs 41, which are opposite side faces of the holding part 41, are set so that the distance between the holding legs before installation is slightly shorter than the thickness of the flange 33, and are spread when installed, and the clamping force is obtained by elastic force. It is suitable to be configured so that In order to further increase the clamping force, as shown in FIG. 2, it is also preferable to provide an engaging claw 43 having a notch in one of the clamping legs and bending that portion inward. In this case, an engagement hole (not shown) corresponding to the engagement claw 43 may be formed in the flange 33 so that the engagement claw 43 is locked to the engagement hole.

  As shown in FIG. 1B, the clip 40 further includes a holding portion 42 that comes into contact with the back side of the roof trim 10. The restraining part 42 can be formed by folding downward the extension part of the holding leg 41 on the vehicle interior side. It is suitable that the holding portion 42 is slightly longer than the holding leg of the holding portion 41 so as to contact the back side of the roof trim 10. Since the curtain shield airbag 5 serves as a guide surface that contacts the restraint portion 42 during deployment, the surface of the restraint portion 42 on the interior side of the interior of the restraint portion 42 has a corner so as not to be caught by the curtain shield airbag 5. It is preferable to have a smooth surface along the deployment direction of the curtain shield airbag 5 that is not present. Thereby, friction with the curtain shield airbag 5 can be reduced, the curtain shield airbag 5 can be satisfactorily deployed, and damage to the curtain shield airbag 5 during deployment can be suppressed. For this reason, in the example shown in FIG. 2, the holding portion 42 is formed into a flat shape, and the curtain shield airbag 5 that is deployed by folding a portion of a small width of the edge to the side opposite to the vehicle interior side. On the other hand, an edge is not formed.

By providing the clip 40, the occupant touches the vicinity of the side edge of the roof trim 10 with his / her hand. For example, as shown by arrows F ₂ and F ₃ in FIG. Even if force is applied, the end of the roof trim 10 is restrained by the restraining portion 42 of the clip 40, so that deformation of the roof trim 10 can be restrained. Therefore, the roof trim 10 can be prevented from being dented inward when touched by a hand, and the texture of the roof trim 10 can be kept good, the roof trim 10 can be prevented from coming off due to deformation, and the curtain shield air can be prevented. When the bag 5 is deployed, it is possible to suppress the deployment speed and the deployment direction from deviating from the design, and to maintain good occupant protection performance. In addition, the curtain shield airbag 5 can be prevented from being damaged by an external force applied from the vehicle interior side.

  As described above, according to the present embodiment, the end of the roof trim 10 is covered with the opening trim 20 so that the appearance is good and the overlap is small so that the roof can be opened when the curtain shield airbag 5 is deployed. The trim 10 can be easily detached, and the curtain shield airbag 5 can be quickly deployed. In addition, the deformation of the roof trim 10 near the terminal can be suppressed by suppressing the back side with the clip 40, thereby giving the roof trim 10 a good texture, and the design of the curtain shield airbag 5. A street deployment mode can be ensured and occupant protection performance can be maintained well.

  The clip used in the present invention is not limited to the configuration shown in FIG. FIG. 3 illustrates some examples of other preferred configurations of the clip.

  FIG. 3A shows a clip 50 having a structure in which the elastic leg 51 is formed by cutting the holding portion 42 and bending the cut portion toward the interior of the automobile, and hence the curtain shield airbag 5. With this elastic leg 51, the deployment direction of the curtain shield airbag 5 can be controlled.

  FIG. 3 (b) shows a clip 60 having a configuration in which the holding portion 62 is configured to go under the curtain shield airbag 5. By using such a clip 60, it is possible to suppress the external force from acting on the curtain shield airbag 5 from the inside of the vehicle interior, and to suppress damage to the curtain shield airbag 5.

  FIG. 3 (c) shows a clip 70 having a configuration that is long in the direction along the side edge of the roof trim 10. In this example, the clip 70 has two holding portions 71 a and 71 b and two holding portions 72 a and 72 b, which are connected by connecting pieces 75 and 76 extending in the direction along the side edge of the roof trim 10. Has been. Furthermore, it is good also as a structure which connected many holding | maintenance parts and suppression parts. By using such a clip 70, the structure which suppresses a terminal in the several places of the direction in alignment with the side edge of the roof trim 10 can be obtained easily.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an automobile interior to which a roof trim terminal restraining structure according to an embodiment of the present invention is applied; FIG. 1 (a) is a perspective view of the front upper right portion of the passenger compartment, and FIG. It is sectional drawing along the AA 'line of 1 (a). FIG. 2 is a perspective view of a clip used in the terminal trim structure of the roof trim of FIG. It is a perspective view which shows the other structural example of a clip.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side window 2 Front window 3 A pillar garnish 4 B pillar garnish 5 Curtain shield airbag 6 Assist grip 10 Roof trim 20 Opening trim 21 Flange holding part 22 Fin 30 Roof panel 31 Roof inner panel 32 Roof outer panels 40, 50, 60 Clip 41, 71a, 71b Holding part 42, 62, 72a, 72b Holding part 43 Engaging claw 51 Elastic leg

Claims (3)

It is a terminal trim structure for a roof trim that is laid on the passenger compartment side with respect to the roof panel of an automobile,
An opening trim is fitted to the edge of the roof panel, the opening trim has a fin extending toward the passenger compartment side, and the fin overlaps with the passenger compartment side of the end portion of the roof trim, and the roof panel the edge is further clip is mounted is fitted, the clip can extend toward the passenger compartment side, of the terminal portion of the roof trim, in contact with the surface opposite to the passenger compartment side A holding part ,
The terminal portion of the roof trim is extended along a direction in which the terminal of the roof trim is displaced so as to prevent the terminal of the roof trim from being displaced to the opposite side of the passenger compartment. .   Near the end of the roof trim, a curtain shield airbag is disposed between the roof trim and the roof panel, and the end of the roof trim is inflated with the curtain shield airbag. The roof trim terminal restraining structure according to claim 1, wherein the terminal trim of the roof trim is disengaged from the fin of the opening trim when abutting against a surface opposite to the passenger compartment side.   A curtain shield airbag is disposed between the roof trim and the roof panel near the end of the roof trim, and the restraining portion of the clip is on the passenger compartment side in the deployment direction of the curtain shield airbag. The terminal trim structure for a roof trim according to claim 1, wherein the terminal trim structure has a smooth surface.

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