JPH01282051A - Roof lining setting structure for vehicle - Google Patents

Abstract

PURPOSE:To facilitate the setting of a base material and a damping layer by installing such a device that pushes up a holding part at the base material side along a panel side slope surface and makes it so as to be locked to this push-up position at a time a roof lining base material is attached to a roof panel lower surface via the damping layer. CONSTITUTION:A roof panel 1 is formed into curved-surface form, and a roof side rail 3 is joined and unified at the double sides. A cell-like structural support layer 11 and a roof lining base material formed into a laminated body consisting of a covered layer 12 and a decorative layer 13 are attached to a lower surface of this roof panel 1 via a damping layer 21. In this case, in order to facilitate the setting of the base material 10, there is provided with an engaging support device 20. Then, the base material 10 is moved from the rear to the front, whereby a holding bar 18 of a bracket 15 at the base material side is pushed up along a slope surface 6 of a bracket 5 at the panel side, operating it so as to be engaged with the inside of a holding groove 8 via a plane part 7, and fixation of the base material 10 as compressing the damping layer 21 is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a highly rigid roof lining mounting structure that eliminates roof arches in a vehicle roof structure.

[Prior art] In the roof structure of a vehicle, the metal roof arch that forms the aggregate of the roof panel was eliminated to reduce weight, and at the same time, an air-permeable resin sheet was used to improve the sound absorption function of the vehicle interior. There is a trend toward adopting roof linings, which are made by laminating a supporting layer such as vapor tamboric acid having a cellular structure such as a honeycomb shape and a covering layer such as air permeable resin fiber on a decorative layer such as Unexamined Japanese Patent Publication 1983-
(See Publication No. 80450).

[Problem to be solved by the invention] However, in the past, the coating layer was only brought into contact with the shape of the roof panel, which resulted in insufficient vibration damping function for the roof panel and roof rigidity function. .

Furthermore, in the past, the laminated roof lining was fixed by adhesively bonding the covering layer to the entire surface of the roof panel, and since the hardened adhesive is difficult to peel off and the covering layer is also made of a material that is not easily torn, this type of roof lining has been fixed. Maintenance work such as replacing the laminated roof lining has become extremely difficult.

Therefore, an object of the present invention is to reduce weight by eliminating roof arches and improve the sound absorption function in the vehicle interior by adopting a laminated roof lining in the roof structure of a vehicle. To provide a roof lining mounting structure which can improve the rigidity function of the roof panel compared to the conventional one, and which can easily attach and detach a laminated roof lining to and from a roof panel, thereby improving maintenance such as replacement.

[Means for Solving the Problems] In order to achieve the above problems, the present invention constitutes a roof lining base material IO by laminating a support layer 11 with a cellular structure and its covering layer 12 on a decorative layer 13, This roof lining base material 10 is closely attached to the lower surface of the roof panel l of the vehicle with a damping layer 21 interposed therebetween. An engagement support device 20 having a slope surface 6 and holding portions 8, 18 is provided along the slope surface 6 of the engagement support device 2o.
The structure is characterized in that the roof lining base material 1o is pushed up by the guide and the damping layer 21 is compressed against the lower surface of the roof panel l by engagement with the holding parts 8 and 18, thereby fixing the roof lining base material 10. .

[Function] The roof lining base material 10 formed by laminating the decorative layer 13, the support layer 11 with a cellular structure, and the covering layer 12 is pushed up along the slope surface 6 from the front and back direction of the engagement support devices 20 provided on the left and right sides. After that, the damping layer 21 is compressed to the lower surface of the roof panel l by engagement of the holding part 8.18, and the roof lining base material 10 is fixed, so that the base material 10 and the roof panel 1
A damping layer 21 is interposed in close contact therebetween.

In this way, the vibration damping layer 21 interposed in close contact between the laminated roof lining base material 10 and the roof panel 1 increases both the vibration damping function for the roof panel l and the rigidity function of the roof compared to the conventional one. Therefore, the roof arch can be eliminated by improving the vibration damping and rigidity functions of the roof while ensuring the sound absorption function of the interior of the vehicle by the decorative layer I3, the support layer 11, and the covering layer 12 forming the base material 1O.

The structure allows the lining base material 10 and the damping layer 21 to be easily attached to and removed from the roof panel l by simply moving the roof lining base material lO in the front-rear direction along the engagement support device 20. Maintenance work such as this can be easily performed.

[Example] Examples will be described below based on the accompanying drawings.

In FIG. 1 showing the roof structure of a vehicle, l is a roof panel, 10 is its roof lining base material, and as shown in FIG. 3, roof site rails 3 are provided on both sides of the roof panel 1.
Or the joint is integrated.

The roof lining base material IO is a laminate consisting of a support layer 11, a covering layer 12, and a decorative layer 13, and a damping layer 21 is laminated on the top surface of this laminate.

That is, as shown in FIG. 2, the support layer 11 is made of a material having high rigidity, such as relatively thick vapor cardboard or phenol-impregnated vapor, and has a cellular structure, particularly a honeycomb core formed into a honeycomb shape. The upper and lower surfaces of the support layer 11 made of this honeycomb core are completely covered with a covering layer 12 made of an air-permeable material such as resin fiber such as resin felt, class wool, cloth material, or air-permeable material such as phenol-impregnated cloth. ing. A decorative layer 13 made of an air-permeable material such as tricot, nonwoven fabric, or perforated resin sheet is provided entirely on the lower surface of the covering layer 12.

The roof lining base material 10 described above is molded into an integral laminate by compression bonding of the support N11, the covering layer 12, and the decorative layer 13 using a press mold or bonding using an adhesive. The upper surface of this roof lining base material 11 is formed into a curved shape in a normal section with a considerably smaller radius of curvature than the lower surface of the roof panel 1, and the end portion 14 around the base material 10 includes a support layer 11 as shown in the figure. It is formed into a crushed shape.

Roof lining base material lO excluding such terminal portion 14
A damping layer 21 is further provided on the upper surface.

This damping layer 21 is made of a material having good air permeability and high material rigidity, such as asphalt-impregnated urethane foam, and has a wall thickness of -. The damping layer 21 may be obtained at the same time as the roof lining base material 10 is integrally molded with the breather, or the damping layer 21 may be formed separately into a shape that follows the curved shape of the upper surface of the base material lO, and the damping layer 21 may be formed later on. It may also be made to adhere to the top surface.

In the above, sliding engagement support devices 20 are provided on each of the left and right sides between the roof panel 1 and the roof lining base material 1O, and at the front and rear thereof.

The engagement support device 20 consists of a panel side bracket 5 and a base material side bracket 15. The panel side bracket 5 is integrally formed with the roof site rail 3, and the base material side bracket 15 is attached to the end of the roof lining base material 10. Part 14
It is integrated in the vicinity.

That is, the roof panel 1 is attached to the inner edge of the upper part of the roof site rail 3.
A plate-shaped bracket 5 that projects downward substantially horizontally is formed integrally with the plate-shaped bracket 5 as shown in FIG.
At the rear, there are two slope surfaces 6 that stand smoothly from the bottom to the top, and a flat portion 7 that continues to the front edge of the slope surface 6.
and a holding groove 8 located in the middle of this flat portion 7.

The other base material side bracket 15 has holes 1 at the four corners adhesively fixed to the upper surface near the roof lining base material end portion 14.
A holding rod 18 projecting substantially horizontally outward from the center of a plate portion 16 having a diameter of 7 is integrated by bonding or the like.

Here, both rackets 5.15 may be made of metal or hard resin, or the panel side bracket 5 may be a separate part and integrally joined to the roof sight rail 3 as shown in FIG.

Bracket (one part of the above engagement support device 20)-15
A laminated roof lining base material 10 in an assembled state with vibration damping layers 21 stacked on the top surface and having damping layers 21 on the front, rear, left and right sides is arranged below the roof panel 1. Then, as shown by the arrows in FIGS. 1 and 2 and in FIG. Let them guide you. Further, the holding rod 18 is engaged in the holding groove 8 after passing over the next plane part 7, and the damping layer 21 is compressed and locked.

In this case, the depth of the holding groove 8 from above the flat part 7 of the panel-side bracket 5 is set to be less than or equal to the minimum collapse amount of the damping layer 21 to be compressed.

Note that the left and right end portions 14 of the base material 10 are connected to the roof site rail 3.
For example, it may be removably fixed to the inclined surface 4 by any means such as screwing, clipping, or inserting to prevent sway.

In this way, the roof lining base material 10 is assembled with the vibration damping layer 21 interposed in close contact with the lower surface of the roof panel 1.

In this assembled state, the roof lining base material 10 has its own rigidity ensured by the support layer 11 made of honeycomb core, and also has an air-permeable decorative layer 13 and a covering layer 12.
Sound absorption inside the vehicle is carried out by the sound absorption layer consisting of.

Furthermore, the roof lining base material lO and the roof panel 1 are provided with a damping layer 21 that is in close contact with the roof panel 1.
Both the vibration damping function and the roof rigidity function will be higher than before.

When removing the linen, push up the retaining rod 18 from the retaining groove 8 and pull it out backwards, then remove the roof panel l.
The linen base material lO and the damping layer 21 can be easily removed.

In addition, in the embodiment, a coating layer covering the upper and lower surfaces of the support layer was used.
A coating layer may be provided on at least one surface.

[Effects of the Invention] As described above, according to the present invention, a structure is provided in which a laminated roof lining base material consisting of a decorative layer, a supporting layer, and a covering layer is sufficiently adhered to the lower surface of a roof panel with a damping layer interposed therebetween. Therefore, in addition to reducing weight by eliminating the roof arch and ensuring the sound absorption function in the vehicle interior, it is possible to improve both the vibration damping function of the roof panel and the rigidity function of the roof compared to the past, especially by adhering the vibration damping layer.

As the roof lining base material is moved forward and backward along the engagement support device, the lining can be replaced and the damping layer can be easily attached and detached from the roof panel.
Work such as lining replacement can be easily performed and maintenance efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view schematically showing the relationship between the roof panel and roof lining of a vehicle for explaining the present invention; FIG. 2 is an enlarged cutaway perspective view of the engagement support device portion showing the mounting structure;
Figure 3 is a longitudinal sectional front view of the main part in the installed state, Figure 4 is a sectional view taken along line IV-IV in Figure 3, and Figure 5 is an exploded sectional view when the panel side bracket is a separate part. be. In the drawings, 1 is a roof panel, 3 is a roof site rail, 5 is a panel side bracket, 6 is a slope surface, 8 is a holding part, IO is a laminated roof lining base material, 11 is a support layer, and 12 is a coating layer. , 13 is a decorative layer, 15 is a base material side bracket, 18 is a holding part 20 is an engagement support device, and 21 is a damping layer.

Claims (1)

[Scope of Claims] A roof lining base material is constructed by laminating a support layer with a cellular structure and its covering layer on a decorative layer, and a damping layer is interposed on the lower surface of a roof panel of a vehicle using this roof lining base material. The structure is such that the roof lining base material and the roof panel are closely attached to each other, and an engagement support device is provided on each side between the roof lining base material and the roof panel, the engagement support device having a slope surface and a holding portion along the front and back direction, and the slope of the engagement support device A roof lining mounting structure for a vehicle, characterized in that the roof lining base material is fixed by pushing up the roof lining base material using guides on the surface and compressing the damping layer against the lower surface of the roof panel through engagement at the holding part. .