JP7248598B2 - Vehicle seal structure - Google Patents

Description

The present invention relates to a sealing structure around a vehicle door.

A weatherstrip is used as a sealing structure around the door. A weatherstrip is an elastic body made of, for example, a resin material. For example, in Patent Document 1, a ring-shaped weather strip is attached to the outer edge of the door. When the door is closed, the weatherstrip is elastically deformed by coming into contact with the body panel forming the door opening of the vehicle body. The elastic force generated in the weatherstrip at this time seals the space between the weatherstrip and the body panel.

In order to open and close the door smoothly, a gap is formed between the peripheral edge of the body panel of the vehicle body and the outer panel of the door. For example, during washing of a vehicle, high-pressure washing liquid may enter this gap. Furthermore, the high-pressure washing liquid may resist the elastic force of the weatherstripping and pry open the contact surface between the weatherstripping and the body panel, that is, the sealing surface, and the washing liquid may enter the vehicle interior.

Therefore, for example, in Patent Document 1, in addition to a hollow portion that abuts on the body panel while elastically deforming to form a sealing surface, a weather seal is provided with a lip portion (tongue piece portion) outside the hollow portion in the vehicle width direction. A strip is disclosed. The lip portion forms a sealing surface by contacting the body panel while being elastically deformed. In other words, in addition to the sealing portion between the hollow portion and the body panel, an additional sealing portion is provided on the front stage, that is, on the side of the gap between the body panel and the outer door panel.

JP-A-2000-43583

By the way, when the lip portion is brought into contact with the body panel while being elastically deformed, the sealing performance obtained by the contact changes according to the elastic force of the lip portion. Therefore, there is a risk that the management of the sealing performance becomes complicated, such as determining the respective wall thicknesses in consideration of deterioration of the elastic force of the lip portion over time in addition to the elastic force of the hollow portion. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a vehicle seal structure capable of improving the sealing performance more than before without increasing the number of seal portions.

The present invention relates to a vehicle seal structure. The seal structure includes a body-side weatherstripping and a door-side weatherstripping. The body-side weatherstripping is attached to the inner edge of the door opening of the vehicle body. The door-side weatherstripping is attached to the outer edge of the vehicle door corresponding to the inner edge of the door opening. The door-side weatherstripping has a hollow seal portion. The body-side weatherstripping includes a contact portion that contacts the seal portion to elastically deform the seal portion when the vehicle door is closed. The contact surfaces of the seal portion and the contact portion serve as mutual seal surfaces. At least one of the body-side weatherstripping and the door-side weatherstripping has a clearance between the periphery of the outer panel of the vehicle door and the periphery of the body panel of the vehicle body when the vehicle door is closed, and the sealing surface between the sealing portion and the contact portion. The protruding portion extends in a non-contact manner from the peripheral member so as to block a straight path connecting to the outer end in the vehicle width direction.

According to the above configuration, the cleaning liquid that has entered through the gap between the outer panel and the body panel of the vehicle door hits the projecting portion before reaching the sealing surface, and the force of the liquid is reduced. Furthermore, the protruding portion extends in a non-contact manner from the peripheral member, and is free from elastic deformation such as when forming the sealing surface.

According to the present invention, it is possible to improve the sealing performance more than before without increasing the number of sealing portions.

It is a perspective view which illustrates the vicinity of the door opening of a vehicle body. 1 is an enlarged perspective view of a vehicle door; FIG. 4 is an enlarged perspective view of the door opening of the vehicle body; FIG. FIG. 4 is a sectional view when the door is closed, exemplifying the AA section of FIG. 2 and the BB section of FIG. 3; FIG. 5 is an enlarged view of FIG. 4; FIG. 7 is a side cross-sectional view illustrating a vehicle seal structure according to a second example of the present embodiment;

1 to 6 illustrate a vehicle seal structure according to this embodiment. 1 to 6, the longitudinal direction of the vehicle is indicated by the axis indicated by the symbol FR, the vehicle width direction is indicated by the axis indicated by the symbol RH (Right Hand), and the vehicle height direction is indicated by the symbol UP. indicated by the indicated axis. The forward direction of the vehicle is the forward direction of the vehicle front-rear axis FR. The positive direction of the vehicle width axis RH is the right side in the vehicle width direction. In addition, the positive direction of the vehicle height axis UP is the upward direction. These three axes are orthogonal to each other.

In the following description, the front in the longitudinal direction of the vehicle is simply referred to as the front, and the rear in the longitudinal direction of the vehicle is simply referred to as the rear, unless otherwise noted. Further, the upper side in the vehicle height direction is simply described as "upper", and the lower side in the vehicle height direction is simply described as "lower".

FIG. 1 illustrates the structure of the vehicle body 10 side of the vehicle seal structure according to the present embodiment. A vehicle door 50 is shown in dashed lines. The vehicle door 50 is rotatable by a hinge mechanism (not shown) provided at the door opening 19 of the vehicle body 10 .

FIG. 2 illustrates the front inner portion of the vehicle door 50 . Further, FIG. 4 illustrates a cross-sectional view when the door is closed, which is a combination of the AA cross section of FIG. 2 and the BB cross section of FIG. The AA cross section in FIG. 2 and the BB cross section in FIG. 3 are cross sections at the same height.

As illustrated in FIG. 2, the vehicle door 50 is, for example, a so-called sashless door in which the door glass 51 has no frame. Further, as illustrated in FIG. 4, the vehicle door 50 includes an outer door panel 56 that is an outer panel and an inner door panel 58 that is an inner panel. The main surface of the door inner panel 58 extends in the longitudinal direction of the vehicle. The front end thereof is folded back outward in the vehicle width direction to form a front plate portion 58A. A vehicle width direction outer end portion of the front plate portion 58</b>A is connected to the door outer panel 56 . A door trim 54 is provided inside the door inner panel 58 in the vehicle width direction.

A weatherstrip, which is a sealing member, is provided on the outer edge of the vehicle door 50 corresponding to the inner edge of the door opening 19 (see FIG. 1) of the vehicle body 10, that is, the front end surface, the lower end surface, and the rear end surface of the vehicle door 50. be provided. As this weatherstrip, the vehicle door 50 is provided with a door-side weatherstrip upper 60 and a door-side weatherstrip lower 70, as illustrated in FIG. The door-side weatherstrip upper 60 and the door-side weatherstrip lower 70 are made of an elastic body made of resin such as rubber.

The door-side weatherstrip lower 70 is, for example, as shown in FIG. 4, a front plate portion 58A of the door inner panel 58, a bottom plate portion (not shown) that is the lower end surface of the door inner panel 58, and a rear end surface. It is provided over the rear plate portion (not shown). Further, as illustrated in FIG. 2 , the upper end of the door-side weatherstrip lower 70 is covered with the door-side weatherstrip upper 60 . For this covered portion, the upper end of the door-side weatherstrip lower 70 functions as a core material arranged in the hollow portion 62 (see FIG. 4) of the door-side weatherstrip upper 60 . Therefore, at this covered portion, excessive crushing deformation of the hollow portion 62 of the door-side weatherstrip upper 60 is suppressed.

2, as illustrated in FIG. 4, the door-side weatherstrip lower 70 is not inserted into the hollow portion 62 of the door-side upper weatherstrip 60, resulting in a hollow portion. An FR-RH cross section of a portion that is more easily deformed than the covered portion is exemplified.

The door-side weatherstrip upper 60 is provided, for example, to reinforce the sealing performance of a sashless door. As described above and illustrated in FIG. 2 , the lower end of the hollow portion 62 of the door-side weatherstrip upper 60 covers the upper end of the door-side weatherstrip lower 70 . Further, the door-side weatherstrip upper 60 extends along the vehicle door 50 . The upper end of the door-side weatherstrip upper 60 extends to the same height as the side mirror 52 .

As illustrated in FIG. 4, the door-side weatherstrip upper 60 is provided with fixing portions 64A and 64B at both ends in the vehicle width direction. A hollow portion 62 is provided so as to be sandwiched between the fixed portions 64A and 64B. The fixed portions 64A and 64B are fixed to the front plate portion 58A of the door inner panel 58 by adhesive, double-sided tape, or the like (not shown). The hollow portion 62 is thinner than the fixed portions 64A and 64B and has a hollow interior. Due to such a structure, the hollow portion 62 is more easily elastically deformed than the fixed portions 64A and 64B. As will be described later, the hollow portion 62 functions as a sealing portion that forms a sealing structure together with the contact portion 24 of the body-side weatherstripping 20 .

As described above, at the lower end of the door-side weatherstrip upper 60, the upper end of the door-side weatherstrip lower 70 is inserted into the hollow portion 62 (seal portion). Excessive deformation is suppressed. On the other hand, in the cross section illustrated in FIG. 4 (the AA cross section in FIG. 2), there is no such core material in the hollow part 62 and it is a hollow part, so compared with the case where the core material is inserted. It has a structure that is easily deformed. Therefore, as will be described later, the body-side weatherstripping 20 is provided with a protruding portion 22 so that the cleaning liquid that has entered from the gap 18 between the fender panel 12 and the door outer panel 56 hits the end 68 (see FIG. 5) of the sealing surface. It has a structure that contacts the projecting portion 22 .

Referring to FIG. 1, vehicle body 10 is provided with a door opening 19 . The door opening 19 is formed, for example, by a frame member of the vehicle. For example, the front pillar 11 (also called the A pillar), the center pillar 13 (also called the B pillar), the rocker 17, and the roof side rail (not shown) covered with the side outer panel 14, which are four frame members. A door opening 19 is formed.

An opening trim 16 and a body-side weatherstrip 20 are attached as sealing members to the inner edge of the door opening 19 , that is, the inner peripheral surface of the door opening 19 . The opening trim 16 is made of an elastic body made of resin such as rubber. The opening trim 16 is attached, for example, over the entire circumference of the inner edge of the door opening 19 .

The body side weatherstripping 20 is a sealing member for reinforcing the sealing by the opening trim 16 . For example, as illustrated in FIG. 1, when the vehicle door 50 is a sashless door, the body-side weatherstripping 20 is attached to the door opening 19 in order to reinforce the sealing performance on the vehicle body side.

The body-side weatherstripping 20 is composed of an elastic body made of resin such as rubber. Further, as described above, since the body-side weatherstripping 20 is provided corresponding to the sashless door, the body-side weatherstripping 20 is provided at a position corresponding to the door glass 51 (see FIG. 2). Specifically, starting from the portion above the center of the vehicle height direction of the front pillar 11, along the side outer panel 14, to the portion above the center of the vehicle height direction of the center pillar 13, that is, substantially the upper half of the door opening 19 A body-side weatherstrip 20 is provided over the entire area. Further, the body-side weatherstripping 20 is provided outside the opening trim 16 at the inner edge of the door opening 19 in the vehicle width direction.

FIG. 3 illustrates an enlarged view of the portion surrounded by the dashed-dotted line circle in FIG. As illustrated in FIGS. 3 and 4 , the body-side weatherstripping 20 is provided with a contact portion 24 , a projecting portion 22 and an extension portion 25 . The abutting portion 24 may be said to be a main body portion of the body-side weatherstripping 20, and the front surface in the vehicle front-rear direction is attached to the flange 14A of the side outer panel 14, which is the body panel of the vehicle body 10. Alternatively, it is fixed by a clip 30 or the like.

The contact portion 24 has an inverted C-shaped cross section, and a sponge 26 as a core material is inserted into the contact portion 24 by expanding the slit 27 (see FIG. 5). Further, an extension portion 25 extends outward from the contact portion 24 in the vehicle width direction. A vehicle width direction end portion of the extension portion 25 abuts on the flange 12</b>A of the fender panel 12 .

When the vehicle door 50 is closed, the abutting portion 24 abuts against the hollow portion 62 of the door-side weatherstrip upper 60 and is urged to come closer. Due to this biasing, the contact portion 24 and the hollow portion 62, which are elastic bodies, are elastically deformed. As illustrated in FIG. 4, the contact portion 24 is thicker than the hollow portion 62, and the sponge 26, which is a core material, is inserted therein. 4, since there is no core material on the cross section of FIG.

FIG. 5 illustrates an enlarged view of FIG. The contact portion 24 and the hollow portion 62 (sealing portion) contact and elastically deform, and the elastic force of the hollow portion 62 and the elastic force of the contact portion 24 push one against the other. The contact surfaces are the sealing surfaces 28 and 66 .

Here, a gap 18 is provided between the peripheral edge of the body panel of the vehicle body 10 and the peripheral edge of the outer panel of the vehicle door 50 in order to ensure smooth opening/closing operation of the vehicle door 50 . In the example of FIG. 4 , a gap 18 is provided between the rear end of the fender panel 12 and the front end of the door outer panel 56 . The seal structure formed by the contact portion 24 and the hollow portion 62 blocks entry of dust, rainwater, and the like entering through the gap 18 into the vehicle interior.

However, as described above, the high-pressure cleaning liquid may enter through the gap 18 during car washing or the like. When this cleaning liquid hits the vehicle width direction outer end 68 of the sealing surfaces 28 and 66 as it is, when the pressure of the cleaning liquid exceeds the elastic force of the contact portion 24 and the hollow portion 62, the sealing surface 28 , 66 may be pushed apart. In such a case, the sealing structure by the sealing surfaces 28, 66 may be forcibly opened, and the washing liquid may enter the vehicle interior.

Therefore, in the vehicle seal structure according to the present embodiment, the contact portion 24 of the body-side weatherstrip 20 is provided with the projecting portion 22 . The protruding portion 22 extends from the contact portion 24 so as to block the linear path L1 connecting the gap 18 and the ends 68 of the sealing surfaces 28 and 66 . Specifically, the projecting portion 22 is provided near the terminal end 68 of the sealing surfaces 28 and 66 and extends outwardly from the contact portion 24 in the vehicle width direction.

By providing the protrusion 22 , the cleaning liquid entering from the gap 18 hits the protrusion 22 before hitting the end 68 of the sealing surfaces 28 and 66 . After hitting the protruding portion 22, the splash of the cleaning liquid reaches the seal surfaces 28, 66 in a state of reduced momentum, thereby avoiding deformation of the seal surfaces 28, 66. - 特許庁In other words, liquid leakage from the sealing structure by the sealing surfaces 28 and 66 is suppressed. Thus, in the vehicle seal structure according to the present embodiment, the projecting portion 22 is provided as a so-called baffle plate that receives hydraulic pressure in front of the seal structure.

In addition, the projecting portion 22 extends from the peripheral member such as the door-side weatherstrip upper 60 in a non-contact manner. In other words, elastic deformation of the projecting portion 22 due to the peripheral member is avoided. Therefore, it is not necessary to consider aging deterioration of the elastic force of the projecting portion 22 or the like.

Furthermore, when the projecting portion 22 as a baffle plate is provided on the body-side weatherstrip 20, even if the position of the vehicle door 50 relative to the vehicle body 10 (so-called installation position) varies, regardless of the variation, The protrusion 22 can be located near the terminal end 68 of the sealing surfaces 28,66. That is, it is possible to arrange the projecting portion 22 so as to always block the straight path L1 connecting the gap 18 and the terminal end 68 . Therefore, regardless of the installation of the vehicle door 50, the momentum of the cleaning liquid can be reduced.

<Second example of vehicle seal structure>
1 to 5, the body-side weatherstripping 20 is provided with the projecting portion 22 as a baffle plate, but the vehicle sealing structure according to the present embodiment is not limited to this form. In short, at least one of the body-side weatherstripping 20 and the door-side weatherstripping upper 60 should be provided with a protrusion that blocks the straight path L1.

For example, as shown in FIG. 6, a protrusion 65 may be provided on the door-side weatherstrip upper 60 . The protruding portion 65 extends from the fixed portion 64A so as to block the linear path L1 connecting the gap 18 and the ends 68 of the sealing surfaces 28 and 66 . Also, as shown, the projecting portion 65 extends from the fixed portion 64A in a non-contact manner from the peripheral member.

In the above-described embodiment, a so-called sashless door is described as the vehicle door 50, but the vehicle seal structure according to the present embodiment is a sash door in which a door glass 51 (see FIG. 1) is provided with a frame. It is also applicable to In the above-described embodiment, the door-side weatherstrip is divided into the upper door-side weatherstrip 60 (see FIG. 2) and the lower door-side weatherstrip 70. good.

10 vehicle body, 11 front pillar, 12 fender panel, 12A fender panel flange, 13 center pillar, 14 side outer panel, 14A side outer panel flange, 16 opening trim, 17 rocker, 18 gap, 19 door opening, 20 body side Weatherstrip 22 Body-side weatherstrip protrusion 24 Contact portion 25 Extension 26 Sponge 28 Body-side weatherstrip sealing surface 30 Clip 50 Vehicle door 51 Door glass 52 Side mirror 54 Door trim , 56 door outer panel, 58 door inner panel, 58A door inner panel front plate portion, 60 door side weatherstrip upper, 62 hollow portion (seal portion), 64A, 64B fixing portion, 65 door side weatherstrip upper projection, 66 Door-side weatherstrip upper sealing surface, 68 Sealing surface end, 70 Door-side weatherstrip lower.

Claims (1)

a body-side weatherstrip attached to the inner edge of the door opening of the vehicle body;
a door-side weatherstrip attached to the outer edge of the vehicle door corresponding to the inner edge of the door opening;
A vehicle seal structure comprising:
The door-side weatherstripping has a hollow seal portion,
The body-side weatherstrip includes a contact portion that contacts the seal portion to elastically deform the seal portion when the vehicle door is closed,
The contact surfaces of the seal portion and the contact portion serve as mutual seal surfaces,
At least one of the body-side weatherstripping and the door-side weatherstripping includes a gap between a peripheral edge of the outer panel of the vehicle door and a peripheral edge of the body panel of the vehicle body when the vehicle door is closed; Projecting closer to the gap than the terminal end of the sealing surface on the linear path so as to block a linear path through which liquid droplets enter , which connects the terminal end of the sealing surface of the contact portion on the outer side in the vehicle width direction. The part extends in the vehicle width direction in a non-contact state from the peripheral member,
Vehicle seal structure.

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