JP2014073775A - Connection structure of glass run and belt line inner weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of the end of a weather strip and a glass run capable of preventing leakage of reflection sound in a door to a room inside by improving sealing performance of a connected part in the case of the connection structure of both when the inner weather strip fitted along a belt line and the glass line fitted around a door are separately formed.SOLUTION: In an inner weather strip 21, a block 23 including an abutting part 28 at the cut end of the fitting base 8 of a core metal 7 is integrally disposed. The block 23 is inserted into the upper end of an inner panel 25 to be fixed, and the abutting part 28 is abutted to the cover lip 4f of a glass run 4.

Description

  The present invention relates to a connection structure between a glass run attached around a door of an automobile door and a belt line inner weather strip (hereinafter simply referred to as an inner weather strip) disposed on a belt line.

  FIG. 1 shows a connecting portion between the inner weather strip 2 and the glass run 4 at a corner b on the rear side of the automobile front door 1a shown in FIG. 4, and FIG. 2 shows an inner weather strip 2 taken along line AA in FIG. 3 shows a cross section of the glass run 4 attached to the sash 3 taken along the line BB in FIG. 1. The inner weather strip 2 is made of rubber such as EPDM or rubber-like elastic material such as thermoplastic elastomer. A mounting base 8 containing a core bar 7 attached to the door trim 6, and a seal lip 11 extending obliquely upward from the middle and lower portions of the mounting base 8 and elastically contacting the indoor side of the window glass 9, It consists of twelve.

  The glass run 4 is a rubber-like elastic body similar to the inner weather strip 2, and is composed of the indoor side wall 4 a and the outdoor side wall 4 b and the bottom wall 4 c connecting the both side walls 4 a and 4 b. The inner side wall end and the outer side wall end extend obliquely toward the bottom wall 4c inwardly from the inner side and the outer side of the window glass 9 inserted into the glass run 4, respectively. A lip 4d, 4e that is elastically contacted, and a cover lip 4f that is connected to the end of the indoor side wall and covers the sash 3, and the glass run 4 extends in the door panel below the belt line beyond the inner weather strip 2 .

  When the inner weather strip 2 and the glass run 4 are assembled, a normal gap is formed between the end of the inner weather strip shown by part e in FIG. 1 and the glass run 4, but the front door 1a is formed with this gap. Since the corner portion b is close to the ear position when seated, the reflected sound in the door leaks into the room through the gap and becomes a factor that deteriorates the sound insulation.

  Also known is one in which an inner weather strip and a glass run are integrally formed (Patent Documents 1 and 2). In such a case, no gap is formed between the end of the inner weather strip and the glass run, and the above problem does not occur. However, the one that integrates the inner weather strip and the glass run is bulky and does not work well, and the workability during assembly and transportation is poor, and the inner weather strip that elastically contacts the window glass when the window glass moves up and down is used. The seal lip and the glass run lip have different bending directions in the former for the former and the latter for the transverse direction. It is also costly to form it integrally.

Japanese Patent No. 3744303 Microfilm of Japanese Utility Model No. 62-84974 (Japanese Utility Model Application No. 63-193915)

  The present invention improves the sealing performance at the connecting portion in the connection structure of both the inner weather strip attached along the belt line and the glass run attached around the door formed separately. It is an object of the present invention to provide a connection structure between the end portion of the inner weather strip and the glass run, which can prevent the reflected sound in the door from leaking to the indoor side from the connection portion.

  The invention according to claim 1 is provided with an end portion of an inner weather strip which is provided along a belt line of an automobile door, and includes a mounting base and a seal lip projecting obliquely upward from the mounting base and elastically contacting the window glass. A side wall, a bottom wall connecting both side walls, a lip that protrudes obliquely inward from both side wall ends and elastically contacts the window glass from both sides, and is assembled to the sash around the door The glass run is integrally formed on the end of the indoor side wall, has a cover lip that covers the sash, and an end of the inner weather strip that faces the glass run is provided on the inner panel of the door. A rubber-like elastic block that is attached to the upper end and attached to the cover lip of the glass run is attached to the mounting base. Characterized in that it is of.

  The invention according to claim 2 is the invention according to claim 1, wherein the glass run extends beyond the inner weather strip into the door panel under the belt line, and a part of the indoor side wall under the belt line is cut off. The inner weather strip is characterized in that a lower end portion, which is a part of an end portion on the glass run side, is extended and bent downward, and is pressed against a portion where a part of the side wall of the glass run is cut off.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the inner weather strip is provided with a plurality of rows of seal lips that elastically contact the window glass, and the mounting base portion includes a cored bar. The top seal lip end faces the glass run in contact or non-contact, and the other seal lip is bent downward together with the mounting base containing the metal core, and pressed against the part where the side wall of the glass run is cut off. It is characterized by.

  The invention according to claim 4 is characterized in that, in the invention according to any one of claims 1 to 3, the seal lip of the inner weather strip bent downward is hollow.

  According to the first aspect of the invention, the inner weather strip is separate from the glass run, and is assembled to the belt line of the automobile door and the sash around the door, respectively, so that the inner weather strip and the glass run are integrated by molding. Compared to what is done, each part has a small turn, and the workability at the time of assembly and transportation is good, and when the window glass is raised and lowered, the seal lip of the inner weather strip and the lip of the glass run that are in elastic contact with the window glass In addition to having the advantage of lowering the cost, the block made of a rubber-like elastic body provided at the end of the inner weather strip does not cause a problem that the connecting portion between the two tends to be split due to different bending directions. By attaching to the inner panel of the door, the inner weatherstrip end is secured And is fixed, or ride further up by the lifting of the window glass, is not able to or lower shear. In addition, the block is applied to the cover lip of the glass run, so that the gap between the block and the glass run can be eliminated and the sound insulation can be improved.

  According to the second aspect of the invention, since the end portion of the inner weather strip bent downward is pressed against the part where the side wall is partially cut off, the reflected sound in the door leaks into the room. It is difficult to cause harshness, and the end of the inner weatherstrip is resistant to contact with the glass run when the window glass is raised and lowered, so that it is difficult to slide up and down following the raising and lowering of the window glass. The part is excised under the belt line, but the excised part is less noticeable under the belt line, and there is an effect that the appearance is not impaired by the excised part.

  According to the invention of claim 3, since the bent portion is covered with the uppermost seal lip end portion, the bent portion is not directly in contact with the eyes, and dust does not easily accumulate between the bent portion and the glass run. In addition, it is possible to prevent the appearance from being deteriorated due to the curved portion, and the seal lip is shaped by a cored bar, and is difficult to slide up and down following the raising and lowering of the window glass.

  According to the invention which concerns on Claim 4, high sound insulation can be exhibited because a seal lip makes hollow shape.

The perspective view of the connection part of the inner weather strip and the glass run in the rear side corner part b of the front door of the motor vehicle shown in FIG. Sectional drawing in the AA of FIG. Sectional drawing. Sectional drawing of the glass run in the BB line of FIG. A side view of an automobile. The perspective view of the connection part which concerns on this invention of the inner weather strip and the glass run in the rear side corner part b of the front door of the motor vehicle shown in FIG. The perspective view of the principal part of an inner weather strip. The CC sectional view taken on the line of FIG. The DD sectional view taken on the line of FIG. The perspective view of the glass run under a belt line. The perspective view which shows the connection structure of an inner weather strip and a glass run. EE sectional view taken on the line of FIG.

  An embodiment relating to a connecting structure of an end portion of an inner weather strip assembled along a belt line and a glass run assembled to a sash around a door will be described with reference to the drawings. In the figure, the same reference numerals are given to the same structural portions as those shown in FIGS.

  FIG. 5 shows a connecting portion between the inner weather strip 21 (with the door trim removed) and the glass run 4 in the corner portion b of the automobile front door 1a shown in FIG. 4. The inner weather strip 21 is the inner weather strip described above. 2, formed of a rubber-like elastic body such as rubber such as EPDM or thermoplastic elastomer, and as shown in FIGS. 6 and 7, an attachment base 8 containing a cored bar 7 and an intermediate portion of the attachment base 8 The seal lip 11 protrudes more obliquely upward and the seal lip 22 has a substantially triangular hollow shape protruding from the lower side. The mounting base 8 is attached to the door trim 26 in the same manner as the inner weather strip 2 described above. It has become.

  As shown in FIGS. 6 and 10, the inner weather strip 21 is also cut off on one side of the door trim side with the cored mounting base 8 and the seal lip 11 except for the lower portion, and the remaining lower cored mounting. The base 8 and the seal lip 22 are bent downward. Then, a block 23 made of a rubber-like elastic body is integrally formed by molding at the end of the cut mounting base 8, or is bonded to the end of the mounting base 8 with an adhesive or the like. It protrudes laterally and indoors from the mounting base 8 (FIG. 6). Here, the block 23 may use either a foamed material or a non-foamed material.

  The block 23 has a vertical groove 24 formed from the lower surface, and is attached by inserting the vertical groove 24 into the upper end of the inner panel 25 of the door panel (FIGS. 5 to 7). 8 is applied from the indoor side to the cover lip 4f of the glass run 4 as shown in FIG. 8, and is provided with a contact portion 28 in order to eliminate the gap between the cover lip 4f and improve the sound insulation of the reflected sound in the door, Corresponding portions 28 are formed so that the curved contact surface of the glass run 4 to the cover lip 4f is continuous with the side end surface of the mounting base portion 8 applied to the cover lip 4f without any step. The indoor side of the abutting portion 28 has a step shape, and the end of the door trim 26 is locked and attached to the step.

  As shown in FIG. 7, the lower end portion 26a of the door trim 26 that is bent vertically is inserted between the mounting base 8 of the inner weather strip 21 and the inner panel 25 of the door panel. 8, and the door trim side end is fitted between the mounting base 8 and the block 23 (FIG. 7).

  The glass run 4 has a portion protruding into the door panel below the belt line as shown in FIG. 9, and a portion of the cover lip 4f and the indoor side wall 4a is cut off together with the seal lip 4d. The above-described inner base strip 21 bent downward and the mounting base 8 and the seal lip 22 are abutted (FIG. 10). For example, the lower end of the seal lip 4d extends longer than the solid line so as not to affect the raising and lowering of the window glass 9 so as to have a substantially triangular shape and wraps as much as possible with the curved portion of the seal lip 22 as shown in FIG. It is desirable to form as follows.

  In the assembled state as shown in FIG. 11, which shows a cross section taken along the line EE of FIG. 10, the seal lip 22 hits the end surface of the indoor side wall 4 a of the glass run 4 and the lip 4 e on the outdoor side. The gap between the glass run 4 and the seal lip 22 of the inner weather strip 21 is sealed under the belt line to enhance the sound insulation of the reflected sound in the door.

  The connecting portion between the inner weather strip 21 and the glass run 4 is configured as described above, and the seal lip 22 of the inner weather strip 21 is along the glass run 4 under the belt line, and is abutted against the cut portion of the glass run 4 for sealing. At the same time, the block 23 is applied to the cover lip 4f of the glass run 4 to prevent the reflected sound in the door from leaking into the room, improving the sound insulation, and the inner weather strip 21 connected to the glass run 4 is made of the core 7 In addition, the block 23 is inserted into the upper end of the inner panel 25 of the door panel, and is held so as to be sandwiched between the door trim 26, so that the window glass 9 moves up and down as the window glass 9 moves up and down. In addition, the inner weather strip 21 is Since the lulip 22 is bent downward together with the metal core 7 and is along the glass run 4, the shape can be maintained even when the window glass 9 is raised and lowered along the seal lip 22, and the cut portion of the glass run 4 is below the belt line. Since it is located and covered with the seal lip 11, it is not noticeable and the appearance is not impaired, and the curved portion of the seal lip 22 is also covered with the seal lip 11 and the appearance is not impaired. There are effects that dust can be prevented from entering the recess between the glass run 4 and that the sound insulation is improved because the seal lip 22 is hollow.

  In the above embodiment, the inner weather strip 21 has the lip-shaped seal lip 11 and the hollow seal lip 22, but the seal lip may be formed only at one place or at three places. All the sealing lips may be lip-shaped or hollow.

  In the above-described embodiment, the connection portion between the inner weather strip 2 and the glass run 4 in the corner portion b on the rear side of the front door 1a of the automobile shown in FIG. 4 is shown, but the corner portion a on the front side of the front door 1a, In the front and rear corners a, c, and d of the rear door 1b, the connecting portion between the inner weather strip and the glass run is configured in the same manner as in the above embodiment, and the same effect can be obtained.

1a, 1b · · Doors 2 and 21 for automobiles · · · Inner weather strip 3 · · Sash 4 · Glass run 4a · Indoor side wall 4b · · Outer side wall 4c · · Bottom wall 4d, 4e · Lip 4f · · Cover lip 6, 26 ·· Door trim 7 · Core 8 · Mounting base 9 · Window glass 11, 12, 22 · · Seal lip 23 · Block 25 · Inner panel 28 · · Contact

Claims (4)

  An end portion of an inner weather strip 21 which is provided with a mounting base 8 and seal lips 11 and 22 projecting obliquely upward from the mounting base 8 and elastically contacting the window glass 9 and is assembled along the belt line of the door for an automobile. And the side walls 4a and 4b, the bottom walls 4c connecting the both side walls, and the lip 4d, 4e that protrudes obliquely inward from both side wall ends and elastically contacts the window glass 9 from both sides. The glass run 4 is connected to the glass run 4 assembled to the sash 3 around the door, and the glass run 4 is integrally formed at the indoor side wall end, and has a cover lip 4f covering the sash 3, and the inner weather strip 21 The end of the glass run 4 facing the glass run 4 is inserted into the upper end of the inner panel 25 of the door, and the cover of the glass run 4 is attached to the mounting base 8. Connecting structure glass run and belt line inner weather strip, wherein a block 23 of rubber-like elastic body against cracking lip 4f is integrated.  The glass run 4 extends beyond the inner weather strip 21 into the door panel under the belt line, and a part of the indoor side wall 4a under the belt line is cut away, while the inner weather strip 21 is formed at one end of the glass run side. 2. The glass run and beltline inner weather strip according to claim 1, wherein a lower end portion which is a portion is extended and bent downward and pressed against a portion where a part of the side wall 4a of the glass run 4 is cut off. Connection structure.  The inner weather strip 21 has a mounting base 8 containing a core metal 7 and includes a plurality of rows of seal lips 11 and 22 that elastically contact the window glass 9. Of these seal lips 11 and 22, the uppermost seal lip end is a glass run. 4, the other seal lip 22 is bent downward together with the mounting base 8 containing the cored bar, and is pressed against a part where the side wall 4a of the glass run 4 is partly cut off. The connection structure of the glass run and beltline inner weather strip according to claim 1 or 2.  4. The connecting structure between a glass run and a belt line inner weather strip according to claim 1, wherein the seal lip 22 of the inner weather strip bent downward is hollow.