JPH0715448U - Interior parts for luggage compartment - Google Patents

Abstract

(57) [Summary] [Purpose] Inverse parts after a heat cycle test in trunk room interior parts that have been molded into the required shape by preheating a molded nonwoven fabric in which polyester fibers are impregnated with SBR resin and then cold press molding. The purpose is to maintain good aesthetics in the luggage compartment by suppressing deformation of the parts. [Structure] By setting an embossed portion 13 having a depth of approximately ½ of the thickness of a general portion on the curved convex surface 12 of the inverse portion of the trunk side trim 10, the deformation of the inverse portion after the heat cycle test is minimized. Stop at.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an interior part for a trunk room such as a trunk side trim and a wheel house trim, which are installed in the trunk room.

[0002]

[Prior art]

 Inside the passenger compartment of passenger cars, interior parts for the passenger compartment are installed on the vehicle panel in order to protect the luggage loaded in the passenger compartment and to improve the appearance of the passenger compartment.

[0003] The trunk room interior parts are mainly those having a core material-less structure which is attached to a trunk panel and does not normally require rigidity, and usually molded non-woven fabrics are often press-molded.

FIG. 6 shows a trunk side trim 1 installed in a trunk side panel in a trunk room. The trunk side trim 1 is a molded non-woven fabric M in which a polyester fiber is impregnated with an SBR resin as a binder. After being preheated and softened, as shown in FIG. 8, it is obtained by forming into a required shape in cold press molds 2 and 3.

[0005]

[Problems to be solved by the device]

 As described above, the interior parts for a trunk room represented by the trunk side trim 1 are cold-press molded into a required shape after preheating the formed nonwoven fabric M, but the terminals are easily deformed after the heat cycle test. As shown in Fig. 7, the portion indicated by A in Fig. 6 has a large degree of deformation such as a warp deformation of 10 to 20 mm toward the interior side, and the trunk panel is exposed. It has been pointed out that it has the drawback of causing a loss of aesthetics.

The present invention has been made in view of such circumstances, and in an interior part for a trunk room, which is formed by molding a molded non-woven fabric into a required shape, by suppressing the deformation in the inverse portion where the deformation is remarkable, It is an object of the present invention to provide an interior part for a luggage compartment that can prevent deterioration of the aesthetics of the luggage compartment.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention relates to a trunk room interior part formed into a required shape by cold-pressing after preheating a molded non-woven fabric in which polyester fiber is impregnated with the SBR resin. The component is characterized in that the curved convex surface of the inverse portion is provided with an embossed portion having a depth which is about ½ of the thickness of the general portion.

[0008]

[Action]

 As is apparent from the above configuration, the curved convex surface in the inverse portion of the interior part for the luggage compartment has the embossed portion with a depth of approximately ½ of the thickness of the general portion. The stress concentrates in the direction of flattening the curved convex surface, and no force is applied in the direction in which the curved convex surface in the inverse portion bends as in the conventional case, so that the deformation can be significantly reduced.

[0009]

【Example】

 Hereinafter, an embodiment of an interior part for a trunk room according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment in which the present invention is applied to a trunk side trim, FIG. 2 is a cross-sectional view of a main part showing a configuration of an inverse portion in the trunk side trim, and FIG. 3 is an interior for a trunk room according to the present invention. FIGS. 4 and 5 are cross-sectional views showing a comparative example of the parts, and FIGS. 4 and 5 are cross-sectional views showing the forming process of the trunk side trim shown in FIG.

1 and 2, the trunk side trim 10 is attached and fixed to a trunk side panel (not shown), and enhances the aesthetics of the trunk room by combining with a trunk floor carpet (not shown) and a trunk rear trim. It has a function to protect the equipment installed in the trunk room.

The trunk side trim 10 is fixed to the trunk side panel by a clip through a mounting hole 11 formed in a peripheral portion.

Further, the trunk side trim 10 has a core-less structure because it is configured to utilize the rigidity of the trunk side panel, and is formed into a required shape by cold press forming a formed nonwoven fabric.

In this example, a molded non-woven fabric obtained by impregnating 100% polyester fiber with an SBR (styrene-butadiene-rubber) resin as a binder was used as a raw material. It is molded into the shape shown in FIG. 1 in a cold press mold having a mold surface shape.

By the way, a feature of the present invention is that the curved convex surface 12 in the inverse portion is formed in order to prevent deformation in the inverse portion (a portion where deformation such as warp is likely to occur) located at the end of the trunk side trim 10. The feature is that the embossed portion 13 is set.

That is, as shown in FIG. 2, the embossed portion 13 has a depth of 2 mm, which is about a half of the thickness of the general portion, while the thickness of the general portion of the trunk side trim 10 is 4 mm. Is set to.

After the thermal cycle test, the deformation of the terminal portion was within 3 mm, and the deformation of the terminal portion could be significantly reduced as compared with the conventional deformation of 10 to 20 mm.

It is speculated that the reason why the deformation is suppressed is that when the embossed portion 13 is set on the curved convex surface 12 in the inverse portion, stress is concentrated in the direction of flattening the curved convex surface 12.

This means that when the embossed portion 13 is set on the curved concave surface 14 in the comparative example shown in FIG. 3, a force is similarly applied in the direction of flattening the curved concave surface 14 and a deformation of 20 to 30 mm occurs. It is also clear from the fact that the deformation is promoted.

As described above, the trunk side trim 10 according to the present invention has a simple structure in which the embossed portion 13 is set on the curved convex surface 12 in the inverse portion which is easily deformed in the related art, and thus the deformation can be minimized. This makes it possible to effectively solve the problem of aesthetic deterioration in the trunk room that has occurred in the past.

FIG. 4 and FIG. 5 show the forming process of the trunk side trim 10 shown in FIG. 1 for reference, and show a forming nonwoven fabric M in which 100% of polyester fiber is impregnated with SBR resin. After preheating to 200 to 220 ° C. in a hot air heating furnace, the peripheral edge of the shaped nonwoven fabric M is held by the clamp device 20 and positioned in the molds of the cold press molding upper and lower molds 30, 40, and then, as shown in FIG. As shown in FIG. 2, the cold press molding upper mold 40 was lowered and molded into the shape shown in FIG. 1 to obtain the trunk side trim 10.

At this time, the cold press molding lower die 30 is provided with a ridge 31, and the ridge 31 forms the embossed portion 13 of the curved convex surface 12 of the trunk side trim 10.

Although the embossed portion 13 is set in the V groove shape, it may be set in the U groove shape, and the shape of the embossed portion 13 is not particularly limited.

[0024]

[Effect of device]

 As described above, the interior part for the trunk room according to the present invention is heat-cycled by setting the embossed portion on the curved convex surface to a depth of about ½ of the thickness of the general portion, especially in the inverse portion where deformation is likely to occur. Since it is possible to suppress the deformation after the test to the minimum, it can be performed simply by providing a ridge on the press die, and it is possible to minimize the deformation of the parts that are significantly deformed in the past and minimize the deformation in the trunk room. It has the effect of maintaining good aesthetics.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment in which an interior part for a trunk room according to the present invention is applied to a trunk side trim.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an explanatory view showing a comparative example of interior parts for a trunk room according to the present invention.

FIG. 4 is a cross-sectional view showing a set state of the formed nonwoven fabric in the forming process of the trunk side trim shown in FIG.

5 is a cross-sectional view showing a cold press molding process of the trunk side trim shown in FIG.

FIG. 6 is a perspective view showing a conventional trunk side trim.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is an explanatory view showing a forming process of a trunk side trim.

[Explanation of symbols]

 10 Trunk Side Trim 11 Mounting Hole 12 Curved Convex Surface 13 Embossing 20 Clamping Device 30 Cold Press Molding Lower Mold 31 Ridge 40 Cold Press Molding Upper Mold M Nonwoven Fabric

Claims (1)

[Scope of utility model registration request] 1. An interior part for a trunk room formed into a desired shape by cold-pressing after preheating a molded non-woven fabric comprising polyester fiber impregnated with an SBR resin, wherein the interior part for a trunk room (10) is an inverse part. An interior part for a trunk room, characterized in that an embossed portion (13) having a depth of approximately ½ of a thickness of a general portion is set on the curved convex surface (12).