JPH11334362A - Door trim for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door trim capable of preventing deformation as much as possible in the door trim for an automobile constituted of being divided into two pieces of a trim upper and a trim lower, by increasing the rigidity of a joint part of the trim upper and trim lower. SOLUTION: A supporting piece 43 in a plate shape extended downward, is integrally formed with a waist gurnish 40 formed out of a resin molded body and joined and fixed to the inner surface of a trim upper 20, and the rigidity of a joint part of the trim upper 20 and the trim lower 30 is strengthened by integrally fixing the trim upper 20 and the trim lower 30 to the supporting piece 43. Since the supporting piece 43 acts as a stopper, the trim upper can be prevented from being deflected and deformed in downward direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door trim for an automobile having a two-part structure composed of a trim upper and a trim lower. The present invention relates to an automobile door trim that does not have any deformation and does not bend and deform even when the window glass is raised or lowered.

[0002]

2. Description of the Related Art Generally, various interior parts are installed in a vehicle interior. FIG. 8 is a front view showing an automobile door trim installed in a door panel, and FIG. 9 is a sectional view of the automobile door trim. In order to enhance the design, the car door trim 1 employs an upper and lower two-part structure of a trim upper 2 and a trim lower 3.

[0003] The structure of the trim upper 2 and the trim lower 3 is, as shown in FIG.
A surface material 2b is formed on the surface of the core material 2a formed into a desired curved shape.
Similarly, the skin material 3b is laminated on the surface of the core material 3a also in the trim lower 3, and the joint structure between the trim upper 2 and the trim lower 3 is the core material 3a of the trim lower 3.
The ultrasonic bosses 4 are formed projecting from the rear side of the trim at a predetermined pitch interval. After inserting the ultrasonic boss 4 into the mounting hole 4a of the trim upper 2, the tip of the ultrasonic boss 4 is removed. The trim upper 2 and the trim lower 3 are joined and fixed by caulking by ultrasonic welding.

Further, on the back side of the trim upper 2, a waist garnish 5 made of a synthetic resin injection-molded body is also joined and fixed by ultrasonic welding, and a door inner seal 6 is attached to a flange 5a of the waist garnish 5. Is attached.

[0005]

As described above, in the conventional car door trim 1 having the upper and lower two-part structure, the joining point between the trim upper 2 and the trim lower 3 is shown in FIG.
As shown in the middle a, they are arranged linearly, and the joint between the trim upper 2 and the trim lower 3 becomes planar,
For example, when an external force is applied in the direction of the arrow in FIG. 9, the trim upper 2 is easily deformed based on a line connecting the mounting points a (indicated by L in FIG. 8). It is pointed out that the trim upper 2 is easily deformed when the occupant places his elbow on the upper surface of the trim upper 2.

Further, since the trim upper 2 and the trim lower 3 are fixed via the ultrasonic boss 4, the rigidity of the fixed portion is weak, so that the door trim 1 is transported or mounted on a bogie before being mounted on the vehicle body. In addition, there is a problem that deformation is easily caused by an external force.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and in an automobile door trim having an upper and lower two-piece structure, the rigidity of a joint portion between a trim upper and a trim lower is strengthened, and the door window glass is raised and lowered. It is an object of the present invention to provide a door trim for an automobile that can maintain its initial shape for a long period of time without being deformed during operation and even when a load is applied to a waist portion.

[0008]

In order to achieve the above object, an invention according to claim 1 of the present application comprises a trim upper,
In the automobile door trim to which the waist garnish for attaching the door inner seal is fixed, a plate-shaped support piece extending downward to the waist garnish is formed of an upper and lower divided body with a trim lower, and a waist garnish to which a door inner seal is attached is provided on the back of the waist portion of the trim upper. A trim upper and a trim lower are integrally fixed to the support piece.

According to a second aspect of the present invention, the support piece formed on the waist garnish extends further downward than a fixing point for integrally fixing the trim upper and the trim lower, and a lower end of the support piece is provided. A fixing point for fixing the side to the trim lower is added.

[0010] The invention according to claim 3 is characterized in that the support pieces formed on the waist garnish are set at a plurality of places at predetermined intervals along the longitudinal direction of the waist garnish.

According to a fourth aspect of the present invention, a trim upper and a trim lower are divided into upper and lower parts, and a waist garnish for attaching a door inner seal is fixed to a back surface of a waist portion of the trim upper.
In a door trim for a vehicle in which a door end is provided at a front side edge of a trim lower, a trim lower and a door end are integrally fixed to a support piece extending downward from a waist garnish disposed on a back surface of the trim upper. .

Here, the trim upper constituting the door trim is made of a resin core material formed into a required shape by a mold press method using a polypropylene resin (hereinafter referred to as a PP resin) mixed with a filler such as talc, and a resin core material. A skin material is integrally attached to the surface of the core material.

In the trim lower, a resin core material is formed into a required shape by mold press molding of a PP resin mixed with a filler such as talc, and a skin material is integrally adhered to the surface of the resin core material. , Trim upper and trim lower, after wrapping the trim lower on the surface of the trim upper, inserting the ultrasonic boss protrudingly formed on the back surface of the trim lower into the mounting hole of the trim upper,
The tip of the ultrasonic boss is crimped by ultrasonic welding or the like, whereby the trim upper and the trim lower are joined.

Further, a waist garnish made of a synthetic resin injection molded body that supports the door inner seal is fixed to the back surface of the waist portion of the trim upper by ultrasonic welding or the like, and the trim upper and the trim lower are joined together. By integrating the waist garnish at the fixed point, the rigidity of the joint between the trim upper and the trim lower is strengthened, a plate-shaped support piece is formed extending downward from the waist garnish, and this support piece is It may be installed at one place or at a plurality of places at a predetermined interval, and the trim upper, the trim lower and the support piece may be integrated, and furthermore, mounting portions are provided at two locations above and below a single support piece. The upper mounting part is integrated with the trim upper, trim lower and support piece, and the lower mounting part is integrated with the trim lower and support piece. Configuration may be adopted, such as.

Further, the trim lower and the door end may be integrated with a support piece extending downward from the waist garnish to enhance the rigidity of the door trim on the front side.

As is apparent from the above configuration, claim 1
According to the described invention, since the trim upper and the trim lower are integrally fixed to a plate-shaped support piece extending downward from the waist garnish,
The rigidity of the waist garnish can be added to the joint fixing portion between the trim upper and the trim lower.

According to the second aspect of the present invention, two upper and lower mounting portions are provided on a support piece extending downward from the waist garnish, and the trim upper and the trim lower are integrally fixed to the upper mounting portion. In addition, since the trim lower is fixed to the lower mounting portion, it can be double reinforced by the support piece extending downward from the waist garnish.

According to the third aspect of the present invention, plate-like support pieces are formed to extend downward at a plurality of locations along the length of the waist garnish, and the trim upper and the trim lower are integrated with the support pieces. Since the configuration is such that a plurality of portions can be reinforced such as front and rear two portions and front and rear and three portions at the center, the rigidity of a joint portion between the trim upper and the trim lower can be further enhanced.

Further, according to the fourth aspect of the present invention, since the trim lower and the door end are integrally fixed to the plate-like support piece extending downward from the waist garnish, the trim lower and the door end are integrated with the rear surface of the trim upper. By adding the rigidity of the trim lower and the door end to the waist garnish, the rigidity of the joint between the trim upper and the trim lower on the door trim front side can be particularly enhanced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a door trim for an automobile according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing a first embodiment of an automobile door trim according to the present invention, FIG. 2 is an exploded perspective view showing the structure of the automobile door trim shown in FIG. 1, and FIGS.
It is each partial sectional drawing which shows the structure of the vehicle door trim shown in FIG.

FIGS. 5 to 7 show a second embodiment of the vehicle door trim according to the present invention. FIG. 5 is a front view of the door trim, and FIGS. 6 and 7 show the vehicle door trim shown in FIG. It is each partial sectional view.

First, a first embodiment of an automobile door trim according to the present invention will be described with reference to FIGS. 1 to 4. The automobile door trim 10 is composed of a trim upper 20 and a trim lower 30 which are vertically divided into two parts. And
A waist garnish 40 is joined and fixed to the back side of the trim upper 20.

More specifically, as shown in FIG. 2, in the present embodiment, the trim upper 20 is provided on a surface of a resin core 21 formed by molding a talc-mixed PP resin into a required shape by mold press molding. A pad material 22 made of compressed urethane is laminated, and on the product surface, a skin material 23 made of soft PVC by slash molding is stuck. Usually, the skin material 23 is formed by mold press molding of the resin core material 21. Bonded and integrated by a crimping die.

On the other hand, the trim lower 30 is composed of a resin core material 31 formed into a required shape by molding and pressing PP resin mixed with talc, and a skin material 32 adhered to the surface of the resin core material 31. The skin material 32 is made of a laminated sheet material in which a polyethylene foam is lined on the back of a TPO (thermoplastic olefin) sheet, and the resin core material is set in a state where the skin material 32 is set in a mold press die. The mold press molding of No. 31 is performed to integrate the two.

The waist garnish 40 is also made of a PP resin mixed with talc by injection molding and has a desired shape, that is, a base 41 conforming to the back surface shape of the trim upper 20 and a flat plate supporting the door inner seal 50. In this embodiment, a plate-like support piece 43 extending downward is integrally formed at the front side edge of the waist garnish 40 in this embodiment. The support piece 43 has two mounting holes 44 and 45 at upper and lower positions.

Next, the process of assembling the trim upper 20, trim lower 30, and waist garnish 40 will be described. The waist garnish 40 has its base 41 integrated with the back surface of the trim upper 20 by ultrasonic welding and fixing. And this waist garnish 40
As shown in FIG. 3, the joint structure between the trim upper 20 and the trim lower 30 in which the
Ultrasonic boss 33 protrudingly formed on the back surface near the upper edge
Is inserted into the mounting hole 24 formed in the trim upper 20, and the tip of the ultrasonic boss 33 is caulked by an ultrasonic welding horn (not shown), so that the trim upper 20 and the trim lower 30 are integrated. Is done.

The mounting structure of the trim upper 20 and the trim lower 30 shown in FIG. 3 is the same as the conventional structure, but the present invention is characterized by a mounting structure to which a waist garnish 40 described below is added.

That is, as shown in FIG. 2 and FIG. 4, the lower support plate 43 of the trim garnish 40 formed on the waist garnish 40 joined to the back surface of the trim upper 20 has Boss for sound wave 3
3 through the mounting hole 24 of the trim upper 20,
The trim upper 20, the trim lower 30, and the waist garnish 40 are integrated by inserting the insert into the upper mounting hole 44 of the support piece 43 and caulking the tip of the ultrasonic boss 33.

Further, the plate-shaped support piece 43 is formed to extend further downward than the lower end edge of the trim upper 20, and the lower mounting hole 4 formed in this extension portion is formed.
The trim boss 30 and the waist garnish 40 are integrated by inserting an ultrasonic boss 34 protruding from the back surface side of the trim lower 30 into the 5 and performing ultrasonic caulking on the tip of the ultrasonic boss 34.

In this embodiment, the mounting and fixing portions are set above and below the plate-shaped support piece 43. However, if desired, a single mounting hole 44 is provided in the support piece 43, and the trim upper 20, the trim lower 30 and the waist garnish are provided. Alternatively, only the structure integrating the 40 may be adopted.

As described above, according to the automobile door trim 10 of the present invention, the trim upper 20 and the trim lower 3
By extending a plate-like support piece 43 from the waist garnish 40 at the joint with the zero, and fixing the trim upper 20 and the trim lower 30 integrally to the support piece 43,
The rigidity is enhanced, so that the trim upper 20 and the trim lower 30 can be used in the transportation process of the door trim 10 and in the storage process such as loading a truck.
The rigidity of the joint portion with the base member does not weaken and does not cause deformation.

FIGS. 5 to 7 show a second embodiment of an automobile door trim according to the present invention. The same reference numerals are given to the same portions as those in the first embodiment, and the detailed description thereof will be omitted. I do.

In the second embodiment, the joint structure between the trim upper 20 and the trim lower 30 is the same as that of the first embodiment, and the waist garnish 40
The support pieces 43 formed at three locations are set at intervals along the longitudinal direction of the waist garnish 40.

That is, the plate-like support pieces 43 are provided at substantially two positions on the waist garnish 40 at the central portion and the
The trim upper 20 and the trim lower 30 are integrally fixed to the support piece 43 of the waist garnish 40, as shown in FIG. Upper 2
The rigidity of the joint between the zero and the trim lower 30 is enhanced.

Further, as shown in FIG.
The door end 60 and the trim lower 30 installed on the back side of the front side are integrated with a support piece 43 extending downward from the front side of the waist garnish 40, and the door end 60 is connected to the joint between the trim upper 20 and the trim lower 30. By adding the rigidity, there is an advantage that the rigidity of the joint is improved.

Therefore, according to this embodiment, the trim upper 20 and the trim lower 30 are integrated with the plurality of support pieces 43 installed on the waist garnish 40, respectively. ,
It can be reinforced along the entire length of the door trim 10,
The rigidity of the joint between the trim upper 20 and the trim lower 30 can be further enhanced, and deformation can be prevented as much as possible.

According to this embodiment, since the plate-shaped support piece 43 functions as a stopper, for example, when a downward load is applied by placing an elbow on the surface of the trim upper 20, When a downward external force is applied to the trim upper 20 at the time of raising and lowering the window glass, the stopper function of the support piece 43 does not cause the waist portion of the trim upper 20 to bend downward and deform. However, there is an advantage that it can be performed smoothly.

[0039]

As described above, the present invention has the following special functions and effects.

(1) According to the first aspect of the present invention, a plate-like support piece extends downward from the waist garnish fixed to the back surface of the trim upper, and the trim upper and the trim lower are integrated with this support piece. Because it is a configuration of fixing, the rigidity of the waist garnish can be added to the joint between the trim upper and the trim lower,
The trim upper and the trim lower are not formed at the joint part in the door trim transporting step and the step of loading the door trim on the bogie, and the quality of the door trim can be maintained well.

(2) According to the second aspect of the present invention, mounting portions are set above and below a plate-like support piece extending downward from the waist garnish joined to the back surface of the upper trim, and the upper trim portion is used for trim upper. And the trim piece and the support piece are integrated, and the trim lower and the support piece are integrated at the lower mounting part, so the waist garnish support piece and the trim side can be integrated at two fixing points. This has the effect that the rigidity of the joint between the trim upper and the trim lower can be further enhanced.

(3) According to the third aspect of the present invention, a plurality of downwardly extending support pieces are provided at intervals along the longitudinal direction of the waist garnish, and a trim upper and a lower piece are provided for the support pieces. Since the trim lower is integrated, the support piece has a stopper function, and the support piece is used as a stopper against downward loads, such as when raising and lowering the window glass and placing an elbow on the waist of the door trim. By providing the function, there is an effect that the initial shape of the door trim can be maintained for a long time without being deformed by bending.

(4) According to the fourth aspect of the present invention, since the trim lower and the door end are integrated with the plate-shaped support piece extending downward from the waist garnish, the door trim is provided on the front side. In addition to the waist garnish, the rigidity of the door end can be added to the joint between the trim upper and trim lower, and the rigidity of the front side of the door trim can be enhanced, and the door end is also used for efficient mounting. It has the effect of.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of an automobile door trim according to the present invention.

FIG. 2 is an exploded perspective view showing the configuration of the vehicle door trim shown in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a front view showing a second embodiment of the vehicle door trim according to the present invention.

FIG. 6 is a sectional view taken along line VI-VI in FIG. 5;

FIG. 7 is a sectional view taken along line VII-VII in FIG. 5;

FIG. 8 is a front view showing a conventional automobile door trim.

FIG. 9 is a sectional view taken along line IX-IX in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Automobile door trim 20 Trim upper 21 Resin core material 22 Pad material 23 Skin material 24 Mounting hole 30 Trim lower 31 Resin core material 32 Skin material 33, 34 Ultrasonic boss 40 Waist garnish 41 Base 42 Flange 43 Support pieces 44, 45 Mounting Hole 50 Door inner seal 60 Door end

Claims (4)

[Claims] 1. A waist garnish (40) comprising a vertically divided body of a trim upper (20) and a trim lower (30), and a door inner seal (50) to which a door inner seal (50) is attached on a back surface of a waist portion of the trim upper (20). ) Is fixed to the car door trim, a plate-shaped support piece (43) extending downward is formed on the waist garnish (40), and the trim piece (20) and the trim lower ( 3
0) and an automobile door trim characterized by being integrally fixed. 2. A support piece (43) formed on the waist garnish (40) extends further downward than a fixing point for integrally fixing the trim upper (20) and the trim lower (30). 2. The door trim according to claim 1, further comprising a fixing point for fixing a lower terminal side of the support piece to the trim lower. 3. The support piece (43) formed on the waist garnish (40) includes a waist garnish (4).
The vehicle door trim according to claim 1 or 2, wherein the door trim is set at a plurality of locations at predetermined intervals along the longitudinal direction of (0). 4. A waist garnish (40) comprising a trim upper (20) and an upper and lower divided body of a trim lower (30), and a door inner seal (50) attached to a back surface of a waist portion of the trim upper (20). Is fixed, and a door end (60) is installed at a front side edge of the trim lower (30). In the automobile door trim, the waist garnish (40) provided on the back surface of the trim upper (20) extends downward. Supporting piece (43)
A door trim for an automobile, wherein a trim lower (30) and a door end (60) are integrally fixed to the door trim.