JP7036673B2 - Vehicle door seal structure - Google Patents

Description

The present invention relates to a vehicle door sealing structure, in particular an inside weather that is mounted on the interior portion of a door waist opening in a vehicle door and is abutted against a glass run whose front or rear ends are held by a partition sash. Regarding the sealing structure of vehicle doors by strips.

As a sealing structure for a vehicle door using this kind of inside weather strip, for example, the one described in Patent Document 1 has been proposed. The inside weather strip may be referred to as an inner weather strip for the door waist, a waist inner seal, a beltline weather strip, a door waist inside seal member, or the like, paying attention to the mounting position on the vehicle door. ..

In the vehicle door seal structure described in Patent Document 1, the rear vertical side portion of the door glass run (door glass run) mounted on the door sash (glass run channel) and the door waist portion (belt line position). It is a seal structure that focuses on the abutting part of the inner weather strip attached to the flange, and is the part of the inner weather strip that abuts on the rear vertical side of the door glass run, and also has the top wall lip. A web-like end face wall is formed between the upper seal lip and the end face wall so as to be pressed against one of the holding lips of the door glass run.

In the vehicle door seal structure described in Patent Document 1, a gap is unlikely to occur between the inner weather strip and the door sash and the door trim, and it is effective for external noise that has entered the inside of the door to enter the vehicle interior. It is said that it can be prevented. The external noise here refers to, for example, road noise during traveling, wind noise, and the like.

Further, Patent Document 1 discloses that the inner weather strip is attached to the upper edge flange of the door inner panel, but instead of this, the inner weather strip is attached to the trim flange portion of the door trim. Is disclosed in Patent Document 2.

Japanese Unexamined Patent Publication No. 2017-144990 Japanese Patent No. 5946661

However, in the vehicle door seal structure described in Patent Document 1, even if the seal structure focuses on the abutting portion between the door glass run and the inner weather strip attached to the door sash, it is attached to the partition sash. No consideration was given to the abutment between the existing door glass run and the inner weather strip, and there is still room for improvement. The partition sash is also called a center partition or a division bar, and refers to a sash placed between an elevating door glass and a fixed (non-elevating) partition glass adjacent to the elevating door glass among vehicle doors.

For example, in a front door for a vehicle, if the elevating door glass and the fixed partition glass on the front side thereof are separated by a partition sash, the partition glass is surrounded by a partition weather strip, so that the door The inner weather strip at the waist opening does not extend to the partition glass side.

In this structure, there is a relatively large gap between the partition weather strip and the door trim on the partition glass side and below the door waist opening, which gap is between the partition sash and the door trim. It communicates with the gap. Therefore, as in the seal structure described in Patent Document 1, it is not possible to block the intrusion route of external noise only by forming a web-shaped end face wall between the top wall lip and the upper seal lip, and the outside Noise may still enter the vehicle interior.

The present invention has been made focusing on such a problem, and provides a sealing structure for a vehicle door by an inside weather strip that can further suppress the intrusion of external noise into the vehicle interior. be.

INDUSTRIAL APPLICABILITY The present invention is attached to the indoor part of the door waist opening facing the door trim among vehicle doors having a partition sash, and is in sliding contact with the elevating door glass, and is of the front end and the rear end in the longitudinal direction. A vehicle door seal structure with an inside weather strip abutted against a door glass run, one end of which is held in a partition sash.

The inside weather strip is formed from a base portion extending in the front-rear direction of the door waist opening and at least two upper and lower glass seal lips protruding from the base portion toward the door glass side. In addition to being configured, an extension seal portion is integrally projected from one end of the inside weather strip.

Further, the extension seal portion is formed so as to straddle the base portion and the lower glass seal lip of the one end portion of the inside weather strip, and is abutted against the door glass run. And, it is provided with an upright wall portion which is formed so as to project from the end face wall portion in the same direction as the protrusion direction of the extension seal portion itself and fills a gap between the partition sash and the door trim. It is a feature.

As an advantageous aspect for further suppressing the intrusion of external noise into the vehicle interior, the extension seal portion is formed so as to project from the upright wall portion in the same direction as the protrusion direction of the extension seal portion itself. The sealing protrusion that extends to a position beyond the partition sash and is thicker than the upright wall portion and closes the opening end of the gap between the partition sash and the door trim. It is desirable to have more.

In this case, as a typical embodiment, it is assumed that the inside weather strip is attached to the portion of the door trim facing the door glass, as in the case described in Patent Document 2, for example. However, the inside weather strip may be fitted and held in the flange portion of the door inner panel forming the door waist opening, as in the case described in Patent Document 1.

Then, as described above, when the inside weather strip is attached to the portion of the door trim facing the door glass, the sealing is improved in order to improve the assembling property of the door trim including the inside weather strip. It is desirable that the lower end portion of the stop protrusion portion is an inclined guide surface inclined downward from the door glass side to the door trim side.

Therefore, in the present invention, the inside weather strip is provided with an extension seal portion, and in addition to the end face wall portion where the extension seal portion is abutted with the door glass run, a gap between the partition sash and the door trim is provided. By providing an upright wall portion to be filled and a sealing protrusion portion that closes the opening end of the gap between the partition sash and the door trim, the intrusion route of external noise into the vehicle interior is blocked. The effect will be further improved.

According to the present invention, an extension seal portion protruding from the inside weather strip fills a gap between the partition sash and the door trim, in addition to the end face wall portion abutted by the door glass run, and the above . Since it is equipped with a sealing protrusion that closes the opening end of the gap between the partition sash and the door trim, it is possible to further suppress the intrusion of external noise into the vehicle interior, and further quietness in the vehicle interior. It can contribute to the improvement of sex.

It is a figure which shows the more specific embodiment of the seal structure of the vehicle door which concerns on this invention, and is explanatory drawing which shows the state which the front door of an automobile is opened. An enlarged cross-sectional arrow view taken along the line AA of FIG. It is an enlarged view of the part B of FIG. 1, and is the perspective view which saw only the element on the indoor side more than a door glass and a partition glass from the outdoor side. The perspective view seen from the C direction of FIG. 3 after removing the partition sash shown in FIG. 3 and the partition weather strip described later. An enlarged cross-sectional view taken along the DD line of FIG. FIG. 2 is an enlarged view of a cross-sectional shape of the inside weather strip shown in FIG. An enlarged cross-sectional view taken along the line EE of FIG.

1 to 7 show more specific embodiments for implementing the sealing structure of a vehicle door according to the present invention, and in particular, FIG. 1 shows an automobile front door (hereinafter, simply referred to as a door) opened. It shows the state.

As is well known, the door 1 shown in FIG. 1 is a door panel in which the door outer panel and the door inner panel, which are both door panels, are integrated by a hemming connection or the like, and the door 1 is integrated with the door body 3 below the door waist opening 2. It is composed of an arch-shaped door sash 4 on the upper side from the door waist opening 2. The door waist opening 2 is a waist flange portion 13a (see FIGS. 2 and 3) of the door inner panel 13 described later and a waist flange portion of the door outer panel (not shown) at the upper end of the door body 3. It is a formed opening and refers to a portion facing the door glass 6 and the partition glass 7, which will be described later. Further, the door sash 4 is composed of an upper side portion 4a that is shaped along the front pillar from the vehicle body roof portion when the door is closed, and a rear side vertical side portion 4b that is shaped along the center pillar when the door is closed.

A partition sash 5 is hung between the door waist opening 2 of the door body 3 and the upper side portion 4a of the door sash 4. An elevating door glass 6 is housed and arranged on the rear side of the partition sash 5, and a fixed (non-elevating) partition glass 7 is fitted on the front side of the partition sash 5.

A door glass run 10 is mounted on the inner circumference of the door sash 4 including the partition sash 5 as described later based on FIG. 5, and the door glass run 6 is guided and supported by the door glass run 10 so as to be able to move up and down. Further, a closed loop-shaped partition weather strip 11 is mounted around the partition glass 7 as described later based on FIG. 5, and the partition glass 7 is attached via the closed-loop partition weather strip 11. Is fixedly arranged on the front side of the partition sash 5.

A resin door trim (lining) 8 having a predetermined decoration on the surface is mounted on the inside of the door body 3 (the surface on the indoor side). Further, a door weather strip 9 having a hollow rubber string shape is attached in a closed loop shape to the peripheral portion of the door 1 including the door body 3 and the door sash 4 on the indoor side. Then, as is well known, when the door is closed, the door weather strip 9 comes into contact with the peripheral edge of the door opening on the vehicle body side, thereby sealing the inside and outside of the vehicle. As a result, airtightness, watertightness, sound insulation and the like are ensured.

FIG. 2 is an enlarged cross-sectional arrow view taken along the line AA of FIG. 1, and shows only the elements on the indoor side of the door glass 6. FIG. 3 is an enlarged view of the portion B of FIG. 1, and shows only the elements on the indoor side of the door glass 6 and the partition glass 7 as a perspective view seen from the outdoor side. Therefore, the door glass 6 and the partition glass 7 are not shown in FIGS. 2 and 3. FIG. 4 shows a perspective view seen from the direction C of FIG. 4 after removing the partition sash 5 shown in FIG. 3 and the partition weather strip 11 described later. Further, FIG. 5 shows an enlarged cross-sectional view taken along the line DD of FIG.

As shown in FIGS. 3 and 5, the partition sash 5 has a substantially H-shaped cross section, and the door glass run 10 and the partition weather strip 11 are fitted and held in the partition sash 5 in a so-called back-to-back manner. There is. That is, the door glass run 10 is fitted and held on the rear side of the partition sash 5, and the partition weather strip 11 is fitted and held on the front side of the partition sash 5.

As shown in FIG. 5, the door glass run 10 has a substantially U-shaped cross section, and a pair of left and right seal lips 12a and 12b are formed so as to project inward on the opening edge thereof. Then, the door glass 6 is received between the pair of seal lips 12a and 12b. On the other hand, in the portion of the partition weather strip 11 along the partition sash 5, the vertical side portion 11a is fitted and held at a position of the partition sash 5 opposite to the door glass run 10, and the vertical side portion 11a thereof is fitted and held. The partition glass 7 is sandwiched between the U-shaped cross-sectional shapes.

As is clear from FIG. 1, the portion of the partition weather strip 11 other than the portion along the partition sash 5 is fitted and held in the upper side portion 4a and the door waist opening 2 of the door sash 4. Further, both the door glass run 10 and the partition weather strip 11 are formed of, for example, EPDM or other resin-based or rubber-based elastic body.

In the door waist opening 2, as shown in FIGS. 1 and 2, the waist flange portion 13a on the door inner panel 13 side forming the door waist opening 2 is formed upright, and the waist flange is formed. The end flange portion 8a on the door trim 8 side is arranged so as to be close to the inside (outdoor side) of the portion 13a. That is, the end flange portion 8a on the door trim 8 side faces the door waist opening 2. An inside weather strip 14 made of, for example, EPDM or other resin-based or rubber-based elastic body is attached to the terminal flange portion 8a of the door trim 8. The terminal flange portion 8a extends over the entire length of the door waist opening 2, whereas the inside weather strip 14 has a vertical side portion 4b and a partition sash 5 on the rear side of the door sash 4 in the door waist opening 2. It is placed between and.

FIG. 6 shows an enlarged cross-sectional shape of the inside weather strip 14 shown in FIG. As shown in FIGS. A panel formed so as to project diagonally upward from the lower end of the base portion 15 to the upper and lower two-tiered glass seal lips 16 and 17, which are parallel to each other. It is equipped with a seal lip 18. For example, a metal thin plate-shaped core material 19 is embedded in the base portion 15 of the inside weather strip 14, and the inside weather is composed of the base portion 15, the upper and lower two-stage glass seal lips 16, 17 and the panel seal lips 18. The strip 14 is formed by an extrusion molding method so as to have a uniform cross-sectional shape in the longitudinal direction.

In FIGS. 2 and 3, the core material 19 is not shown. Further, although the means for fixing the inside weather strip 14 to the terminal flange portion 8a of the door trim 8 is not shown, the inside weather strip 14 is fixed to the terminal flange portion 8a by a known cut-up claw piece method. In this fixed structure of the cut-up claw piece method, for example, as described in Patent Document 2 described above, a plurality of claw pieces are cut up together with the core material 19 from the base portion 15 in which the core material 19 is embedded. On the other hand, the claw pieces are inserted into the insertion holes on the terminal flange portion 8a side, and then the claw pieces are bent on the back surface side of the terminal flange portion 8a.

As shown in FIG. 3, the front ends of the upper and lower two-tiered glass seal lips 16 and 17 of the inside weather strip 14 are abutted against the seal lips 12a of the door glass run 10 on the partition sash 5 side, while the upper and lower two-tiered glass. The rear ends of the seal lips 16 and 17 are abutted with the door glass run 10 on the vertical side portion 4b side on the rear side of the door sash 4 shown in FIG. As shown in FIG. 6, the upper and lower two-stage glass seal lips 16 and 17 are in contact with the door glass 6 and allow the door glass 6 to move up and down while sliding relative to the door glass 6 when the door glass 6 is moved up and down. Will be done. Further, as shown in FIGS. It has a function to block the gap between the doors.

As shown in FIGS. 3 to 5, the front ends of the upper and lower two-tiered glass seal lips 16 and 17 of the inside weather strip 14 are abutted with the door glass run 10 on the partition sash 5 side as described above, but on the lower side. The glass seal lip 17 does not end at that position, but bypasses the partition sash 5 and extends further to the front side beyond the partition sash 5.

As described above, FIG. 4 shows a perspective view seen from the C direction of FIG. 3 after removing the partition sash 5 shown in FIG. 3 and the partition weather strip 11 described later. Further, FIG. 5 shows an enlarged cross-sectional view taken along the line DD of FIG. In addition to FIG. 3, as shown in FIGS. 4 and 5, a bent-shaped extension seal portion 20 is integrated forward toward the front end of the inside weather strip 14 so as to extend further to the front side beyond the partition sash 5. It is formed so as to project.

As described above, the inside weather strip 14 including the base portion 15, the upper and lower two-stage glass seal lips 16 and 17, and the panel seal lips 18 is as shown in FIG. 6 in the longitudinal direction by the extrusion molding method. It is molded as having a uniform cross-sectional shape. On the other hand, in the extension seal portion 20, the terminal portion at the front end of the inside weather strip 14 is subjected to a predetermined cutting process, the terminal portion is inserted into the mold, and the extension seal portion 20 is formed in the mold. It is integrally molded with the inside weather strip 14 by a mold forming method in which a resin material to be used is filled. As is clear from FIG. 4, in the portion of the lower glass seal lip 17 near the extension seal portion 20, the tip of the lip gradually changes so as to gradually approach the base portion 15.

As shown in FIGS. 3 to 5, the extension seal portion 20 has an end face wall portion 21 formed so as to straddle the front end of the lower glass seal lip 17 and the base portion 15, and the base portion of the end face wall portions 21. A thin-walled upright wall portion 22 extending forward so as to avoid the partition sash 5 from a position closer to 15, and a sealing protrusion formed at the front end of the upright wall portion 22 to be thicker than the upright wall portion 22. 23 and is formed from. If the sealing protrusion 23 is further subdivided, a thick base portion 24, a prismatic upper protrusion 25 extending upward from the base 24, and a substantially hook-shaped portion extending downward from the base 24 as well. It is formed from a lower protrusion 26 having a bent claw portion 26a.

As is clear from FIG. 5, in the plan view of the inside weather strip 14 in the normally assembled state, the end face wall portion 21 of the extension seal portion 20, the upright wall portion 22, and the inner surface of the sealing protrusion portion 23 are the same. The shape follows the shape of the outer surface of a part of the partition sash 5 facing each other and the door glass run 10 fitted and held in the partition sash 5.

As a result, the inner surface of the end face wall portion 21 comes into contact with a part of the door glass run 10 fitted and held by the partition sash 5, and the end face wall portion 21 is between the partition sash 5 and the end flange portion 8a of the door trim 8. It is sealed so as to close the opening on the rear side of the gap. At the same time, the inner surface of the sealing protrusion 23 abuts on the front side portion of the partition sash 5, and the sealing protrusion 23 is on the front side of the gap between the partition sash 5 and the end flange portion 8a of the door trim 8. It is sealed so as to close the opening of the.

Further, the thin-walled upright wall portion 22 is interposed in the gap between the partition sash 5 and the terminal flange portion 8a of the door trim 8, and the thin-walled upright wall portion 22 physically fills the space corresponding to the gap. I'm filling it up. As a result, the gap between the partition sash 5 and the terminal flange portion 8a of the door trim 8 and the openings before and after the gap are sealed so as to be filled with the extension seal portion 20.

FIG. 7 shows an enlarged cross-sectional view taken along the line EE of FIG. As shown in FIGS. The sealing protrusion 23 of 20 is located. As shown in FIG. 4, the sealing protrusion 23 includes a base portion 24, an upper protrusion 25, and a lower protrusion 26. The sealing protrusion 23 is in close contact with one surface of the terminal flange portion 8a of the door trim 8, and the claw portion 26a of the lower protrusion 26 extends to the lower side thereof.

That is, as shown in FIGS. 3 and 4, a tongue piece portion 8b that locally protrudes downward is formed at a position corresponding to the partition sash 5 in the terminal flange portion 8a, and the tongue piece portion 8b is formed. The claw portion 26a of the lower protrusion portion 26 is engaged with the lower edge. As a result, as shown in FIG. 7, the tongue piece in the terminal flange portion 8a of the door trim 8 is formed in the angle-shaped space formed by the claw portion 26a of the lower protrusion portion 26 and the portion above the sealing protrusion portion 23. The tongue piece 8b is received so that the portion 8b is in close contact with the portion 8b.

As shown in FIGS. The arc-shaped inclined guide surface 27 is inclined downward toward the surface. The function of the inclined guide surface 27 will be described later. Further, the inclined guide surface 27 may be a flat inclined surface instead of the arcuate one.

As shown in FIG. 7, a string-shaped and ultra-soft Eptseal material (Eptsealer) 28 is preliminarily attached to the portion of the partition weather strip 11 facing the terminal flange portion 8a of the door trim 8 along the longitudinal direction. The epteal material 28 is sandwiched between the partition weather strip 11 and the terminal flange portion 8a. Therefore, in the normally assembled state of the inside weather strip 14, as shown in FIG. 7, the upper protrusion 25 of the sealing protrusion 23 and the ept seal material 28 in the extension sealing portion 20 are positioned in the vertical direction and the vehicle width direction. It is designed to overlap each other.

Therefore, in such a sealing structure with the inside weather strip 14, as shown in FIGS. 5 and 7, the partition glass 7 fitted to the door 1 via the partition weather strip 11 is a fixed type (non-elevating type). It has become. On the other hand, the door glass 6 adjacent to the partition glass 7 is guided and supported by the vertical side portion 4b (see FIG. 1) on the rear side of the door sash 4 and the door glass run 10 fitted and held in the partition sash 5. It can be raised and lowered by operating a wind regulator mechanism (not shown). In this case, the door glass run 10 and the inside weather strip 14 smoothly allow the door glass 6 to move up and down.

Further, in the closed state of the door glass 6, as shown in FIG. 5, the seal lips 12a and 12b of both the vertical side portion 4b on the rear side of the door sash 4 and the door glass run 10 fitted and held in the partition sash 5 are provided. It will be pressed against both the front and back sides of the door glass 6. At the same time, in addition to the upper and lower two-stage glass seal lips 16 and 17 of the inside weather strip 14, the same upper and lower two-stage glass seals of the outside weather strip (not shown) arranged to face the inside weather strip 14 with the door glass 6 sandwiched between them. The lip is pressed against both the front and back surfaces of the door glass 6. As a result, the inside and outside of the vehicle are sealed with the door glass 6 interposed therebetween, and airtightness, watertightness, sound insulation, and the like are ensured.

On the other hand, when focusing on external noise such as road noise and wind noise that inevitably invaded the inside of the door body 3 as the vehicle traveled, as shown in FIG. 5, the terminals of the partition sash 5 and the door trim 8 The upright wall portion 22 of the extension seal portion 20 is interposed in the gap between the flange portion 8a to fill the space of the gap, and the openings on the rear and front sides of the gap are extended seal portions. The end face wall portion 21 of 20 and the sealing protrusion 23 are sealed so as to be closed. Therefore, the intrusion route of external noise near the intersection between the door waist opening 2 and the partition sash 5 is blocked by the extension seal portion 20, and the wind leakage noise and the like are suppressed to contribute to the improvement of quietness in the vehicle interior. Can be done.

Further, for example, even if the assembly of the inside weather strip 14 with respect to the door trim 8 varies, the upright wall portion 22 of the extension seal portion 20 is always interposed between the partition sash 5 and the door trim 8. , The effect of blocking the intrusion route of external noise is not hindered.

Further, since the extension seal portion 20 that exerts the effect of blocking the intrusion route of external noise is extended and formed on the front side of the inside weather strip 14, it is not exposed to the occupant's visible position and spoils the appearance. There is no such thing.

Further, as shown in FIGS. 2 to 4 and 6, when the door trim 8 to which the inside weather strip 14 is pre-mounted is assembled to the door 1, the end flange portion 8a of the door trim 8 is the door waist opening 2. It is necessary to get over the waist flange portion 13a and position the terminal flange portion 8a on the outdoor side of the waist flange portion 13a. In particular, as is clear from FIGS. It is necessary to sandwich.

As a countermeasure, as shown in FIGS. The presence of the inclined guide surface 27 makes it easier for the extension seal portion 20 of the inside weather strip 14 to get over the waist flange portion 13a of the door waist opening 2. Moreover, the inclined guide surface 27 can be positioned along the outer screen of the partition weather strip 11 and the inside weather strip 14 can be positioned at the normal position by lowering the inside weather strip 14 together with the terminal flange portion 8a of the door trim 8.

As a result, even if the extension seal portion 20 is integrally formed on the inside weather strip 14, the assembling property of the door trim 8 to which the inside weather strip 14 is pre-mounted is not impaired.

Here, in the above embodiment, the type in which the inside weather strip 14 in which the extension seal portion 20 is integrally formed is attached to the door trim 8 in advance has been described as an example, but the present invention is not limited to this. For example, it can also be applied to a type in which the inside weather strip 14 is attached to the waist flange portion 13a of the door waist opening 2. Further, the inside weather strip 14 may be provided with three or more glass seal lips.

Further, in the above embodiment, the front door of the type in which the partition sash 5 is arranged on the front side of the elevating door glass 6 of the door 1 has been described as an example, but the elevating door glass such as the rear door has been described. The present invention can also be applied to a type of door in which a partition sash is arranged on the rear side of the door.

1 ... Front door 2 ... Door waist opening 3 ... Door body 4 ... Door sash 5 ... Partition sash 6 ... Door glass 7 ... Partition glass 8 ... Door trim 8a ... Terminal flange 10 ... Door glass run 14 ... Inside weather strip 15 ... Base Parts 16, 17 ... Glass seal lip 20 ... Extension seal part 21 ... End face wall part 22 ... Standing wall part 23 ... Sealing protrusion 24 ... Base 25 ... Upper protrusion 26 ... Lower protrusion 26a ... Claw 27 ... Inclined guide surface

Claims (3)

Among vehicle doors with partition sashes, it is attached to the indoor part of the door waist opening facing the door trim, sliding with the elevating door glass, and either the front end or the rear end in the longitudinal direction. A vehicle door seal structure with an inside weather strip that is abutted against a door glass run whose ends are held in a partition sash.
The inside weather strip is composed of a base portion extending in the front-rear direction of the door waist opening, and at least two upper and lower glass seal lips formed so as to project from the base portion toward the door glass side. At the same time
An extension seal portion is integrally projected at one end of the inside weather strip.
The extension seal part is
Of the one end of the inside weather strip, the end face wall portion formed so as to straddle the base portion and the lower glass seal lip and abutted against the door glass run.
An upright wall portion that is formed so as to project from the end face wall portion in the same direction as the protrusion direction of the extension seal portion itself to fill the gap between the partition sash and the door trim.
The extension seal portion is formed to protrude from the upright wall portion in the same direction as the protrusion direction of the extension seal portion itself, extends to a position exceeding the partition sash, and is thicker than the upright wall portion. A sealing protrusion that closes the opening end of the gap between the partition sash and the door trim,
A vehicle door seal structure characterized by being equipped with. The seal structure for a vehicle door according to claim 1, wherein the inside weather strip is attached to a portion of the door trim facing the door glass . The seal structure for a vehicle door according to claim 1 , wherein the lower end portion of the sealing protrusion is an inclined guide surface inclined downward from the door glass side toward the door trim side. ..

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