JP2633906B2 - Roof lining mounting structure for vehicle - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a high rigid roof lining mounting structure in which a roof arch is eliminated in a vehicle roof structure.

[Related Art] In a roof structure of a vehicle, a resin sheet having air permeability is used in order to reduce a weight by eliminating a metal roof arch which forms an aggregate of a roof panel and to improve a sound absorbing function in a vehicle interior. There is a tendency to adopt a roof lining in which a support layer made of paper cardboard having a cellular structure such as a honeycomb shape and a coating layer made of a resin fiber having air permeability are laminated on a decorative layer such as a honeycomb shape (for example, Kaisho 56-
No. 80450).

[Problems to be Solved by the Invention] However, conventionally, only the covering layer is brought into contact with the shape of the roof panel, so that both the vibration damping function for the roof panel and the rigidity function of the roof are insufficient.

Further, conventionally, the covering layer is entirely adhered to the roof panel to fix the laminated roof lining, and the solidified adhesive is difficult to peel off easily, and the covering layer is made of a material that is not easily broken. Maintenance work such as replacement of the laminated roof lining has been extremely difficult.

Therefore, an object of the present invention is to provide a vehicle roof structure
In addition to using a laminated roof lining to reduce the weight and improve the sound absorbing function of the vehicle interior by eliminating the roof arch, the vibration control function for the roof panel and the rigidity function of the roof can be enhanced compared to the conventional model, and the roof panel An object of the present invention is to provide a roof lining mounting structure in which a laminated roof lining can be easily attached and detached to improve maintenance such as replacement.

[Means for Solving the Problems] In order to achieve the above objects, the present invention provides a roof lining substrate 10 by stacking a support layer 11 having a cellular structure and a coating layer 12 thereof on a decorative layer 13, The roof lining substrate 10 has a structure in which a vibration damping layer 21 is interposed and closely attached to the lower surface of the roof panel 1 of the vehicle, and a plurality of holding rods 18 are mounted on the roof lining substrate 10, while the roof panel On one side, there are provided a plurality of slope surfaces 6 extending in the vehicle front-rear direction, a flat portion 7 continuing to the edge of the slope surface, and a holding groove 8 in the flat portion. Is moved up and down in the vehicle longitudinal direction to push up the roof lining base material 10 toward the roof panel 1 and then drop it into the holding groove 8, and at the same time compress the vibration damping layer 21 against the lower surface of the roof panel 1 to make the roof lining base Lumber 10 It is fixed, characterized by.

[Operation] While the holding rods 18 attached to the roof lining substrate 10 formed by laminating the decorative layer 13, the support layer 11 having a cellular structure, and the coating layer 12 are respectively applied to the slope surface 6, the roof lining substrate 10
Is moved in the front-rear direction of the vehicle to push up the roof lining base material 10 toward the roof panel 1, and the damping layer 21 is compressed to the lower surface of the roof panel 1 by engagement of the holding rods 18 and the holding grooves 8. By fixing the base material 10, the vibration damping layer 21 is interposed between the base material 10 and the roof panel 1 in a close contact state.

In this way, the vibration damping layer 21 interposed between the laminated roof lining material 10 and the roof panel 1 in a tightly contacting state enhances both the vibration damping function for the roof panel 1 and the rigidity function of the roof as compared with the related art. And therefore the substrate 10
The roof layer can be eliminated by enhancing the vibration damping and rigidity functions of the roof while securing the sound absorbing function in the vehicle interior by the decorative layer 13, the support layer 11, and the covering layer 12 which form the roof.

Then, by merely moving the roof lining base material 10 in the front-rear direction while applying the support rod 18 to the slope surface 6 or the plane part 7 following the slope surface 6, the lining base material 10 with respect to the roof panel 1 is moved.
In addition, since the vibration damping layer 21 can be easily attached and detached, maintenance work such as lining replacement can be easily performed.

Embodiment An embodiment will be described below with reference to the accompanying drawings.

In FIG. 1 showing a roof structure of a vehicle, 1 is a roof panel, 10 is a roof lining base material, and as shown in FIG.
Are joined and integrated.

The roof lining substrate 10 is composed of a support layer 11 and a coating layer 12.
And a decorative layer 13. The vibration damping layer 21 is laminated on the upper surface of the laminate.

In other words, as shown in FIG. 2, the support layer 11 is a honeycomb core formed into a cellular structure, particularly a honeycomb shape, using a material having high rigidity, such as a relatively thick paper cardboard or phenol-impregnated paper. The upper and lower surfaces of the supporting layer 11 made of the honeycomb core are entirely covered with a coating layer 12 made of an air-permeable material such as resin fibers such as resin felt, glass wool, cloth material, or phenol-impregnated cloth. I have. A decorative layer 13 made of a material having air permeability, such as a tricot, a nonwoven fabric, or a perforated resin sheet, is also provided on the entire lower surface of the coating layer 12.

The roof lining material 10 described above is formed into an integrated laminate by compression bonding of the support layer 11, the covering layer 12, and the decorative layer 13 using a press die or bonding using an adhesive. The upper surface of the roof lining substrate 11 is formed into a curved shape with a regular cross section having a considerably smaller radius of curvature than the lower surface of the roof panel 1, and the terminal portion 14 around the substrate 10 includes the support layer 11 as shown in the figure. Not formed in a crushed shape.

A vibration damping layer 21 is further provided on the upper surface of the roof lining base material 10 excluding the terminal portion 14.

The vibration damping layer 21 is made of a material having high air permeability and high rigidity, such as asphalt-impregnated urethane foam, and has a uniform thickness. Then, the vibration damping layer 21 is obtained at the same time as the press integral molding of the roof lining base material 10 or is formed independently into a shape following the curved surface shape of the upper surface of the base material 10 and the vibration damping layer 21 is formed on the upper surface of the base material 10 later. It may be one that is bonded.

In the above description, the slide-type engagement support device 20 is provided on each of the right and left sides of the roof panel 1 and the roof lining base material 10 and before and after it.

The engagement support device 20 is composed of the panel side bracket 5 and the base side bracket 15, and the panel side bracket 5 is formed integrally with the roof side rail 3, and the base side bracket 15 is a terminal of the roof lining base material 10. It is provided integrally near the part 14.

That is, a plate-like bracket 5 projecting substantially horizontally downward from the roof panel 1 is integrally formed on an inner edge of an upper portion of the roof side rail 3, and as shown in FIG. A slope surface 6 that rises smoothly and a flat portion 7 that is continuous with the front edge of the slope surface 6
And a holding groove 8 in the middle of the plane portion 7.

The other base material side bracket 15 has a holding rod 18 projecting substantially horizontally outward from the center of a plate part 16 having holes 17 at four corners adhesively fixed to the upper surface near the roof lining base material end part 14.
Are integrated by bonding or the like.

Here, both brackets 5 and 15 may be made of metal or hard resin, or may be those integrally joined to the roof side rail 3 as separate panel-side brackets 5 as shown in FIG.

The bracket 15 as one of the engagement support devices 20 is provided in the front, rear, left and right directions, and the laminated roof lining material 10 in an assembly state in which the vibration damping layer 21 is overlapped on the upper surface is disposed below the roof panel 1. Then, as shown in the arrows of FIGS. 1 and 2 and FIG.
The 15 holding rods 18 are guided on the slope surface 6 of the bracket 5 on the roof panel 1 side. Further, the holding rod 18 is engaged with the holding groove 8 through the next flat portion 7 to lock the vibration damping layer 21 while compressing it.

In this case, the depth 1 of the holding groove 8 from above the flat portion 7 of the panel side bracket 5 is set to be equal to or less than the minimum crushing allowance of the compressed vibration damping layer 21.

The terminal portions 14 on the left and right sides of the base material 10 may be detachably fixed to the roof side rail 3 by any means such as screws, clips or insertions to prevent the swing from sliding, for example.

In this way, the roof lining substrate 10 is assembled by interposing the vibration damping layer 21 on the lower surface of the roof panel 1 in close contact.

In this assembled state, the roof lining base material 10 has its own rigidity secured by the supporting layer 11 of the honeycomb core, and the sound absorbing layer composed of the decorative layer 13 and the covering layer 12 having air permeability reduces sound absorption in the vehicle interior. Done.

Further, due to the vibration damping layer 21 being in a close contact state between the roof lining base material 10 and the roof panel 1, both the vibration damping function for the roof panel 1 and the rigidity function of the roof are enhanced as compared with the conventional case.

When the lining is to be removed, the holding rod 18 is pushed up from the holding groove 8 and pulled out rearward, whereby the roof panel 1 is removed.
The lining base material 10 and the vibration damping layer 21 can be easily removed from the substrate.

In the embodiment, the coating layer covers the upper and lower surfaces of the support layer. However, the coating layer may be provided on at least one of the surfaces.

[Effects of the Invention] As described above, according to the present invention, a structure in which a laminated roof lining substrate including a decorative layer, a support layer, and a cover layer is sufficiently adhered to the lower surface of a roof panel with a vibration damping layer interposed therebetween. Therefore, in addition to reducing the weight by eliminating the roof arch and securing the sound absorbing function in the vehicle cabin, the vibration damping function for the roof panel and the rigidity function of the roof can be both enhanced by the close contact of the vibration damping layer.

The structure is such that the lining base and the vibration damping layer can be easily attached to and detached from the roof panel simply by moving the roof lining base in the front-rear direction while applying the support rod to the slope surface or the flat surface following the slope. Can be easily performed, and the maintainability can be improved.

[Brief description of the drawings]

1 is an exploded perspective view schematically showing a relationship between a roof panel and a roof lining of a vehicle for explaining the present invention, FIG. 2 is an enlarged cutaway perspective view of an engagement support device showing an attachment structure,
FIG. 3 is a longitudinal sectional front view of a main part in an attached state, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, and FIG. is there. In the drawings, 1 is a roof panel, 3 is a roof side rail, 5 is a panel side bracket, 6 is a slope surface, 8 is a holding groove, 10 is a laminated roof lining material, 11 is a support layer,
12 is a coating layer, 13 is a decoration layer, 15 is a base material side bracket, 18 is a holding rod, 20 is an engagement support device, and 21 is a vibration damping layer.

Claims (1)

(57) [Claims] 1. A roofing base material is constructed by laminating a support layer having a cellular structure and its covering layer on a decorative layer, and a vibration damping layer is interposed on the lower surface of a roof panel of a vehicle. A structure in which a plurality of holding rods are attached to the roof lining base material,
On the other hand, on the roof panel side, a plurality of slope surfaces extending in the vehicle front-rear direction, a flat portion following an edge of the slope surface, and a holding groove in the flat portion are provided. Moving the roof lining in the front-rear direction of the vehicle to push the roof lining base material toward the roof panel, and then drop it into the holding grooves, and compress the vibration damping layer against the lower surface of the roof panel to fix the roof lining base material A roof lining mounting structure for a vehicle, characterized in that: