JP5027723B2 - Automotive door structure - Google Patents

Description

  The present invention relates to an automobile door structure in which a door trim is attached to a door inner panel.

As shown in FIGS. 8 to 10, conventionally, as a measure against sound insulation inside the door D, sound insulation is provided between the door inner panel 11 and the interior door trim 12 attached to the inner side of the door inner panel 11. 2. Description of the Related Art A door structure for an automobile is known in which an adhesive sheet 20 is provided so as to hang from the upper side to the lower side (for example, Patent Document 1 and Patent Document 2).
JP 2003-252054 A JP 2004-74818 A

  As shown in FIG. 9, the upper end of the sound insulating sheet 20 is fixed to a beltline inner weather strip 15 attached to the door trim 12, or the upper end of the sound insulating sheet 20 is fixed as shown in FIG. There is a type that is inserted into and fixed to an attachment mechanism 14 provided on a belt line inner weather strip 15 attached to the upper portion of the door inner panel 11.

  The beltline inner weather strip 15 is attached along the beltline, and includes an attachment base portion 16, upper and lower seal lip portions 17, 18 that are in sliding contact with the door glass G that is raised and lowered from the inside of the vehicle, and the seal lip portion 17, The support part 19 which supports 18 is provided. The door trim 12 is fixed to the door inner panel 11 with a clip C.

  According to this, since the two spaces X and Y are formed between the door inner panel 11 and the door trim 12 via the sound insulating sheet 20, felt, urethane, pad material, sound insulating cover, etc. are provided on the back surface of the door trim 12. The sound insulation is improved as compared with the provided one, and the sound insulation sheet 20 can be provided simply by hanging it from the upper side to the lower side, so that the assembling work is simple.

However, in the door structure for automobiles as shown in the conventional example, although the door inner panel 11 is covered by the sound insulating sheet 20, the gaps S1 and S2 generated at the front and rear ends of the beltline inner weatherstrip 15 are completely formed. Not covered.
That is, as shown in FIG. 11 (shown here with the door trim 12 removed), in the front door D, between the front end of the beltline inner weather strip 15 and the bracket 32 that supports the side mirror 31. As shown in FIG. 12 (showing a state where the door trim 12 is removed), the gap S1 that is generated is also attached to the rear end of the beltline inner weather strip 15 and the inside of the door sash in the front door D. The gap S2 generated between the center pillar garnish 33 and the center pillar garnish 33 is not completely covered with the sound insulating sheet 20, and thus entered through a drainage port (not shown) provided under the door D via the gaps S1 and S2. Sound sometimes leaked to the inside of the car.
Similarly, in the rear door (not shown), a sound insulating sheet is also provided for a gap generated between the front and rear end portions of the beltline inner weatherstrip and the interior material such as garnish attached inside the door sash opposite to each other. Because it was not completely covered with, there was a case where sound leaked from the gap to the inside of the car.

  Accordingly, an object of the present invention is to provide an automobile door structure that can easily improve the quietness of a passenger compartment by processing a sound insulating sheet.

In order to achieve the above object, according to a first aspect of the present invention, an interior door trim (12) is attached to the inner side of a door inner panel (11) and is attached along a belt line. A beltline inner weather strip (15) formed with a seal lip portion (17, 18) in sliding contact with the glass (G) is attached to the door inner panel (11) or the door trim (12), and the door inner panel (11 ) And the door trim (12), a soundproof sheet (20) is provided so as to hang from the upper side to the lower side in a goodwill shape,
At least one of the front upper end and the rear upper end of the sound insulating sheet (20) is an ear piece that covers the gap (S1, S2) generated at the end of the beltline inner weatherstrip (15) ( 51, 52) projectingly formed.

  According to a second aspect of the present invention, in the first aspect of the present invention, the ear piece (51, 52) is a gap (S1, S2) generated at an end of the belt line inner weather strip (15). ) Is covered from above.

  Further, the invention according to claim 3 is the invention according to claim 1, wherein the ear piece (51, 52) is a gap (S1, S2) generated at an end of the belt line inner weather strip (15). ) Enters the gap (S1, S2) and is covered.

  Symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and embodiments of the invention described later.

According to the automobile door structure of the present invention, at least one of the front upper end and the rear upper end of the sound insulating sheet provided so as to hang down from the upper side to the lower side between the door inner panel and the door trim, That is, an ear piece is formed to project at both the front upper end and the rear upper end of the sound insulation sheet, or an ear piece is formed to project at either the front upper end or the rear upper end of the sound insulation sheet. In addition, the gap formed at the end of the beltline inner weatherstrip is covered from the upper part by the ear-shaped piece part or is covered and covered by the upper part of the beltline inner weatherstrip so that the sound is generated from the gap generated at the end of the beltline inner weatherstrip. Leaking to the inside of the car is prevented.
In addition, the configuration is not particularly complicated, and is simple, such as covering the gaps using the ear-shaped piece projecting from the upper end of the sound insulating sheet.

  With reference to FIG. 1 thru | or FIG. 3, the door structure for motor vehicles which concerns on embodiment of this invention is demonstrated. FIG. 1 shows an automobile door structure according to an embodiment of the present invention, and FIG. 2 shows a sound insulating sheet attached to the automobile door structure shown in FIG. 3 is an enlarged sectional view taken along line BB in FIG. 1 is equivalent to that shown in FIG. 9 as a conventional example.

In this automobile door structure, an interior door trim 12 is attached to the inner side of a door inner panel 11 which is an inner side of a belt line portion of the automobile at a front door D of the automobile, and the door trim 12 extends along the belt line. A beltline inner weather strip 15 to be attached is attached.
A sound insulating sheet 20 is provided between the door inner panel 11 and the door trim 12 so as to hang from the upper side to the lower side, and two spaces X and Y are provided between the door inner panel 11 and the door trim 12. The sound insulation effect is improved by forming.

The belt line inner weather strip 15 is formed of an attachment base portion 19 and upper and lower seal lip portions 17 and 18 slidably in contact with the door glass G that is raised and lowered from the vehicle interior side. It is attached by being fitted into the formed recess.
The material of the sound insulating sheet 20 is not particularly limited, but is preferably a cloth having a high sound absorbing property. As a commercial item, for example, “Synthrate (trade name)” manufactured by Sumitomo 3M Co., Ltd. can be mentioned. In addition, as long as it is a sheet, it may be made of rubber (made of urethane or EPDM) or nylon. From the viewpoint of sound insulation performance, foamed rubber is preferable, and EPDM having a specific gravity of 0.05 to 0.4 is desirable.
Moreover, although it is more effective to set the sound-insulating sheet 20 on the entire surface of the door inner panel 11, a sufficient sound-insulating effect can be obtained even if the height is about 1/3 to 2/3 of the height.

Further, ear-shaped pieces 51 and 52 that cover the gaps S1 and S2 generated at the end of the beltline inner weather strip 15 are formed to protrude from the front upper end and the rear upper end of the sound insulating sheet 20.
That is, in the front door D, the gap S1 generated between the front end portion of the beltline inner weather strip 15 and the bracket 32 that supports the side mirror 31 is covered and hidden by the ear-shaped piece portion 51. A gap S <b> 2 generated between the rear end portion of the inner weather strip 15 and an interior material (here, a center pillar garnish) 33 such as a garnish attached to the inside of the door sash is covered with an ear-shaped piece portion 52.

The ear-shaped pieces 51 and 52 are substantially strip-shaped, and the width m is wider than the width of the gaps S1 and S2, and the height n of the ear-shaped pieces 51 and 52 is larger than the length of the gaps S1 and S2. As shown in FIG. 4 (shown here with the door trim 12 removed) and FIG. 6 (shown here with the door trim 12 removed), the gaps S1 and S2 are completely covered from above. It is configured as follows.
Note that the ear pieces 51 and 52 covering the gaps S1 and S2 are pressed against the gaps S1 and S2 by the door trim 12 from above.

  According to such a door structure for an automobile, both the upper end on the front side and the upper end on the rear side of the sound insulating sheet 20 provided so as to hang from the upper side to the lower side between the door inner panel 11 and the door trim 12 are respectively provided. Since the ear-shaped pieces 51 and 52 are formed so as to protrude and cover the gaps S1 and S2 generated at both ends of the belt-line inner weather strip 15 by the ear-shaped pieces 51 and 52, the belt-line inner weather strip is formed. The sound is prevented from leaking from the gaps S1 and S2 generated at both ends of the vehicle 15 to the inside of the vehicle.

In the embodiment of the present invention, the gaps S1 and S2 generated at both ends of the beltline inner weatherstrip 15 are covered from the outer upper part by the ear-shaped pieces 51 and 52 having a shape larger than the shape of the gaps S1 and S2. However, as shown in FIG. 5 (shown here with the door trim 12 removed) and FIG. 7 (shown here with the door trim 12 removed), the ear pieces 51, 52 are shown. Can be formed so as to enter the gaps S1 and S2 generated at the end of the beltline inner weather strip 15 and cover the gaps S1 and S2.
At this time, if the sound insulating sheet 20 and the ear piece 51 are made of a sponge-like material made of EPDM having a specific gravity of 0.05 to 0.4, the sound insulating sheet 20 and the ear piece 51 are rich in compressibility. Even if the shape piece portion 51 is covered with another interior material (for example, the door trim 12) from above or entering the gaps S1 and S2, it can be flexibly dealt with, and the adhesiveness by an adhesive or the like is excellent. .

In the embodiment of the present invention, the gaps S1 and S2 generated at both ends of the beltline inner weatherstrip 15 are covered with the ear-shaped pieces 51 and 52. The sound insulation effect can be obtained even if the gap generated at one of the ends is covered with the ear piece.
Here, as shown in FIGS. 3 and 9, an example in which the beltline inner weather strip 15 is attached to the door trim 12 is shown. However, as shown in FIG. The present invention can also be applied to the one having the weather strip 15 attached thereto.
In the embodiment of the present invention, the front door D is shown as an example, but the rear door (not shown) is also attached to the front and rear ends of the beltline inner weather strip and the inside of the door sash where they face each other. The gap generated between the interior materials such as garnish can also be covered with the ear piece formed on both the front upper end and the rear upper end of the sound insulating sheet to prevent the sound from leaking into the vehicle inside from the gap. .
Further, in the embodiment of the present invention, the sound insulating sheet 20 and the ear pieces 51 and 52 have been shown to be integrally formed from the same material, but may be formed from different materials.

It is an appearance perspective view showing the door structure for cars concerning the embodiment of the present invention. It is an external appearance perspective view which shows the sound insulation sheet attached to the door structure for motor vehicles based on embodiment of this invention. It is a BB line expanded sectional view of Drawing 1. FIG. 2 is an enlarged perspective view showing the belt line inner weatherstrip front end portion of the automotive door structure according to the embodiment of the present invention (viewed from the vehicle inner side). It is an expansion perspective view which shows the circumference of the beltline inner weatherstrip front end part of another automobile door structure concerning the embodiment of the present invention (viewed from the vehicle inner side). FIG. 2 is an enlarged perspective view showing the belt line inner weatherstrip rear end portion of the automotive door structure according to the embodiment of the present invention (viewed from the vehicle interior side). It is an expansion perspective view which shows the belt line inner weatherstrip rear-end part periphery of another door structure for motor vehicles based on embodiment of this invention (viewing from the vehicle inner side). It is an external appearance perspective view which shows the door structure for motor vehicles based on a prior art example. It is an AA line expanded sectional view of Drawing 1 and Drawing 8. It is a partial expanded sectional view of another door structure for cars concerning a conventional example. It is an expansion perspective view which shows the beltline inner weatherstrip front end periphery of the door structure for motor vehicles concerning a prior art example (viewed from the vehicle inner side). It is an expansion perspective view which shows the beltline inner weatherstrip rear periphery part of the door structure for motor vehicles concerning a prior art example (viewing from the vehicle inner side).

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Door inner panel 12 Door trim 15 Beltline inner weather strip 16 Mounting base 17, 18 Seal lip part 19 Support part 20 Sound insulation sheet 31 Side mirror 32 Bracket 33 Interior material 51 Ear-shaped piece part (front side)
52 Ear piece (rear side)
C clip D door G door glass S1, S2 gap

Claims (3)

An interior door trim is attached to the inner side of the door inner panel, and a belt line inner weather strip attached along the belt line and formed with a seal lip portion that slides on the door glass is attached to the door inner panel or the door trim. A door structure for an automobile, wherein a sound insulating sheet is provided so as to hang from the upper side to the lower side between the door inner panel and the door trim,
An automotive door characterized in that at least one of the front-side upper end and the rear-side upper end of the sound-insulating sheet is formed with an ear-shaped piece portion that covers a gap generated at an end portion of the beltline inner weatherstrip. Construction.   2. The door structure for an automobile according to claim 1, wherein the ear piece covers a gap generated at an end portion of the beltline inner weather strip from an upper portion.   2. The door structure for an automobile according to claim 1, wherein the ear-shaped piece portion covers and covers a gap generated at an end portion of the beltline inner weather strip.

Images