JP6928529B2 - Parting seal device - Google Patents

Description

The present invention relates to a sealing device for sealing a parting portion at a door end or the like of an automobile.

Conventionally, in an automobile having a sliding door that is opened and closed by a power sliding door device or the like, the parting portion between the front door and the rear door is sealed to improve the appearance, sound insulation, watertightness, and the like. .. Further, in such an automobile, a pinch prevention sensor is provided to prevent a person's hand or an object from being pinched by the sliding door. In particular, the pinch prevention sensor is provided in the sealing device for sealing the parting portion. A sealing device provided in a parting portion of such an automobile is disclosed in, for example, Patent Document 1. The conventional parting seal device will be described with reference to FIGS. 4 and 5.

As shown in FIGS. 4 and 5, the parting seal device 100 is attached to the front end of the rear door 1 in order to seal the parting portion P between the front end of the rear door 1 of the automobile and the rear end of the front door 2. More specifically, the parting seal device 100 is attached to a mounting flange 3 formed so as to project forward on the front end wall of the rear door 1. The mounting flange 3 extends along the vertical direction of the rear door 1. The parting seal device 100 has a hollow hollow sealing portion 101 on the outside of the vehicle, thereby sealing the parting portion P. Further, in the parting seal device 100, a sensor installation portion 102 having a hollow portion 102a into which a pinch prevention sensor can be inserted is integrally formed with the hollow seal portion 101 inside the vehicle of the hollow seal portion 101.

The parting seal device 100 is assembled to the mounting flange 3 at the groove-shaped mounting portion 103 provided between the sensor mounting portion 102 and the hollow sealing portion 101. The groove-shaped mounting portion 103 includes a first side wall 103a on the hollow seal portion 101 side, a second side wall 103b facing the first side wall 103a (on the sensor installation part 102 side), a first side wall 103a, and a second side wall 103b. It is composed of a bottom wall 103c located between the two and continuous with them. In the groove-shaped mounting portion 103, two locking lips 104 formed so as to extend from the hollow seal portion 101 side to the sensor mounting portion 102 side are provided. A gap equivalent to the thickness of the mounting flange 3 is provided between the tip of the locking lip 104 and the second side wall 103b. Therefore, by inserting the gap portion into the mounting flange 3, the mounting flange 3 can be narrowed by the locking lip 104 and the second side wall 103b. As a result, the parting seal device 100 is temporarily assembled to the mounting flange 3. Between the hollow seal portion 101 and the mounting portion 103, the inclined surface 104a of the locking lip on the rear side (door panel side) of the two locking lips 104, and the inclined surface 103a on the outside of the vehicle of the mounting portion 103-. The inclined surface 107a of the thick root portion 107 located on the base end side of the hollow seal portion 101 and the hollow seal portion 101 is configured to be continuous.

Next, after being assembled to the mounting flange 3, the parting seal device 100 is fixed to the vehicle outer inclined surface 1b rather than the flange on the door panel by a clip (not shown) attached to the hollow sealing portion 101. Finally, the double-sided tape 106 attached to the lip portion 105 extending from the sensor installation portion 102 to the inside of the vehicle is fixed to the vehicle interior side surface 1a rather than the flange on the door panel. In this way, the parting seal device 100 is completely fixed to the door panel at the front end of the rear door.

According to such a parting seal device 100, the parting portion P between the front end of the rear door 1 and the rear end of the front door 2 can be sealed, and the appearance, sound insulation, watertightness, and the like can be improved. Further, since positioning is possible by assembling to the mounting flange 3 formed on the rear door 1 before being completely fixed by the clip or double-sided tape, the assembling accuracy can be improved. Further, since the parting seal device 100 can be provided with a pinch prevention sensor, it is possible to obtain two effects such as sealing of the parting portion P and pinch prevention only by the parting seal device 100, and the manufacturing cost can be reduced. ..

Japanese Patent No. 3834755

In the conventional body structure including the door of an automobile, the belt line BL exists at a position approximately in the middle of the automobile (see FIG. 4). When viewed from the front of the door, the portion below the belt line BL protrudes to the outside of the vehicle as a whole, and accordingly, the line of the mounting flange 3 provided at the front end of the rear slide door 1 extends in the vertical direction. Also, it protrudes inward of the vehicle due to the curved R1 which is convex inward of the vehicle (see FIG. 6).

Further, in recent years, in order to improve the design of the appearance of an automobile, many automobiles are provided with a character line CL on the side surface of the body including the door (see FIG. 4). The character line CL is a type of line that constitutes the basic shape of a car. It is a line that is added to the smooth surface of the car body to attract strong interest as an eye catcher depending on the intersection of the surfaces that are configured as the vehicle design, and depending on the design theme, it is raised or grooved mainly on the side part of the door or body. It is a line that has been carved, creases, or peaked. A diagram of the rear slide door 1 provided with the character line CL is shown in FIG.

As shown in FIG. 6, the front end wall of the rear door 1 does not extend linearly in the vertical direction, but has a portion curved in an S shape. Along with this, the mounting flange 3 also extends in the vertical direction of the rear door 1 while having an S-shaped curved portion due to the curved R2 having a convex shape on the outside of the vehicle and the curved R3 having a convex shape on the inside of the vehicle. .. Therefore, particularly when the parting seal device 100 does not have a core material made of metal or the like inside, when the parting seal device 100 is sequentially assembled to the mounting flange 3 from the lower part or the upper part of the rear door 1, it is curved as shown in FIG. A force is applied to the attachment portion 103 of the parting seal device 100 at the portion, and as a result, the locking lip 104 is deformed so as to close the opening of the attachment portion 103. Then, it becomes difficult to insert the mounting portion 103 into the mounting flange 3, and it becomes difficult to assemble the parting seal device 100 to the mounting flange 3. In particular, in the conventional parting seal device 100, the angle θ1 formed by the second side wall 103b and the inclined surface 104a of the locking lip 104 is larger than 45 degrees, and the inclined portion rises to the tip of the mounting flange 3. It becomes difficult to insert the mounting flange 3 into the mounting portion 103. In this state, the lip portion 105 is lifted from the door panel and separated from the door panel, and even if the double-sided tape 106 attached to the lip portion 105 is attached to the door panel, the crimping is insufficient. As a result, the double-sided tape 106 may be easily peeled off and the parting seal device 100 may not be properly fixed to the front end wall of the rear door 1. Further, since the hollow seal portion 101 exists on the outside of the vehicle of the mounting portion 103 and the lip portion 105 exists on the inside of the vehicle of the mounting portion 103, and the width of the parting seal device 100 is larger than that of the mounting flange 3, it is mounted on the flange. One of the causes of the inability to fix properly is that the groove opening is difficult to see and the position is difficult to understand.

The present invention has been made in view of the above problems, and an object of the present invention is to cut off the front end of the rear door and the rear end of the front door even in an automobile having a curved portion having a small curvature R in the flange due to the character line CL. The purpose is to be able to properly assemble a sealing device that seals the part.

In order to achieve the above object, in the present invention, the parting seal device has a structure in which the locking lip is inclined so that the mounting flange can be guided into the groove-shaped mounting portion.

Specifically, the parting seal device according to the present invention is a parting seal device attached to a mounting flange formed on the door end portion in order to seal the parting portion of the door end portion of the automobile, and seals the parting portion. It is provided with a hollow or lip-shaped seal portion for the purpose of mounting, and a groove-shaped mounting portion which is arranged at the door end so as to be inside the vehicle from the seal portion at the time of mounting and can be inserted into the mounting flange. Is composed of a first side wall located on the seal portion side, a second side wall facing the first side wall, and a bottom wall continuous with the first side wall and the second side wall. A locking lip extending toward the second side wall is provided, and the locking lip inclines toward the bottom wall from the base end of the locking lip toward the tip, and the tip of the locking lip is the second side wall. The opening end of the second side wall opposite to the bottom wall of the second side wall is inclined toward the first side wall side toward the bottom wall side of the mounting part, and the locking lip is not in contact with. The inclination and the inclination of the opening end of the second side wall are such that when a load is applied to the mounting portion and the tip of the locking lip is deformed so as to come into contact with the second side wall, the contact position of the opening of the second side wall is inclined. A gap is formed between the second side wall and the locking lip at the bottom wall side end position of the inclined surface of the opening end portion of the second side wall, which is located on the bottom wall side of the end portion. It is characterized by being configured.

According to the parting seal device according to the present invention, the locking lip and the open end of the second side wall of the mounting portion are inclined toward the bottom wall side of the mounting portion, and the inclined surface of the open end of the second side wall is inclined. A gap is formed between the second side wall and the locking lip at the position of the bottom wall side end of the. Therefore, when mounting on the mounting flange formed at the door end of the automobile, even if the mounting portion of the parting seal device is closed by the locking lip, the mounting flange is inside the mounting portion of the parting sealing device. I can guide you. Therefore, in an automobile having a character line, even if the parting seal device is curved at the time of mounting and the mounting portion is closed by the locking lip, the parting seal device can be easily and appropriately assembled to the mounting flange. As a result, the parting seal device can be sufficiently crimped to the door panel by the double-sided tape and can be properly fixed.

In the parting seal device according to the present invention, the inclination of the locking lip and the inclination of the opening end portion of the second side wall are deformed so that the tip of the locking lip comes into contact with the second side wall when a load is applied to the mounting portion. , The distance of the gap between the second side wall and the locking lip at the position of the bottom wall side end of the inclined surface of the open end of the second side wall is configured to be larger than the thickness of the mounting flange. Is preferable.

In this way, even if a force is applied to the mounting portion and the tip of the locking lip is deformed so as to come into contact with the second side wall, the mounting portion can be easily inserted into the mounting flange, and the parting seal device can be used. Easy to assemble to the mounting flange.

In the parting seal device according to the present invention, a thick-walled root portion is provided between the hollow or lip-shaped seal portion and the mounting portion, and the surface facing the door panel from the inclined surface of the locking lip to the thick-walled root portion. It is preferable that the inclined surface is continuously formed without a step.

In this way, the inclined surface on the first side wall side (seal portion side) of the mounting portion becomes large, the guiding effect of the mounting flange on the mounting portion can be increased, and the ease of assembly can be further improved.

In the parting seal device according to the present invention, the angle formed by the vehicle outer surface of the second side wall and the inclined surface of the locking lip is preferably 45 degrees or less and 10 degrees or more.

If the angle exceeds 45 degrees, when the mounting portion of the parting seal device is mounted on the flange, the inclined portion easily rises to the tip of the flange, which makes it difficult to mount the parting seal device. Further, if the angle is less than 10 degrees, the width of the locking lip in the left-right direction of the vehicle becomes extremely short, and it becomes difficult to attach the attachment portion of the parting seal device to the flange.

In the parting seal device according to the present invention, it is preferable that a thin-walled portion is formed on the first side wall or the bottom wall of the mounting portion.

In this way, even when a load is applied to the mounting portion and the tip of the locking lip is deformed so as to come into contact with the second side wall, the opening of the mounting portion can be easily widened, so that the mounting flange can be easily attached to the mounting portion. It can be easily attached to the mounting flange of the parting seal device.

According to the parting seal device according to the present invention, when the parting seal device mounts the mounting portion on a portion of the parting portion where the mounting flange is curved with a small curvature R, the groove opening of the mounting portion is closed by a locking lip. Even if it is deformed so as to be peeled off, the parting seal device can be easily and appropriately assembled to the mounting flange. As a result, the parting seal device can be sufficiently crimped to the door with the double-sided tape, and it becomes easy to completely fix the parting seal device.

FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4 showing a state in which the parting seal device according to the embodiment of the present invention is attached to the rear door. FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4 showing a state when the parting seal device according to the embodiment of the present invention is attached to the rear door. FIG. 2 is an enlarged view of a main part. It is a figure which shows the left side surface of the automobile which has a sliding door. FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4 showing a state in which a conventional parting seal device is attached to a rear door. It is the figure which looked at the left rear slide door from the diagonally front of the outside of a car, and is the figure explaining the character line. It is sectional drawing in the line AA of FIG. 4 which shows the state when the conventional parting-off seal device is attached to a rear door, and is the figure for demonstrating the problem.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its application methods or its uses.

A parting seal device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In the automobile shown in FIG. 4, 1 is a rear door of the automobile, 2 is a front door, and particularly the rear door 1 is a sliding door. The parting seal device according to the present embodiment is attached to the front end wall of the rear door 1.

FIG. 1 shows the front end portion of the rear door 1, and particularly shows the cross section taken along the line AA of FIG. As shown in FIG. 1, a mounting flange 3 projecting forward from the vehicle body and extending in the vertical direction of the rear door 1 is provided at the front end portion of the rear door 1, and the parting seal device 10 according to the present embodiment includes the mounting flange 3. It is assembled to.

The parting seal device 10 according to the present embodiment has a hollow sealing portion 11 on the outside of the vehicle, thereby sealing the parting portion P between the front end of the rear door 1 and the rear end of the front door 2. Further, in the parting seal device 10, a sensor installation portion 12 having a hollow portion 12a into which a pinch prevention sensor can be inserted is integrally formed with the seal portion 11 inside the vehicle than the seal portion 11. A groove-shaped mounting portion 13 for being inserted into the mounting flange 3 at the time of assembling to the mounting flange 3 is provided between the seal portion 11 and the sensor mounting portion 12. The mounting portion 13 is located between the first side wall 13a on the seal portion 11 side, the second side wall 13b facing the first side wall 13a (on the sensor mounting portion 12 side), and the first side wall 13a and the second side wall 13b. It is composed of a bottom wall 13c that is continuous with them. The end portion (open end portion) of the second side wall 13b opposite to the bottom wall 13c is formed so as to incline toward the first side wall 13a side toward the bottom wall 13c side. Let Q be the end of the bottom wall 13c side in the inclination, that is, the boundary position between the non-inclined portion and the inclined portion of the second side wall 12b. In the present embodiment, the seal portion 11 is hollow, but the seal portion 11 may be lip-shaped.

The mounting portion 13 is formed with a locking lip 14 extending from the first side wall 13a toward the second side wall 13b. A gap portion substantially equal to the thickness of the mounting flange 3 is provided between the tip of the locking lip 14 and the second side wall 13b. Therefore, by inserting the gap portion into the mounting flange 3, the mounting flange 3 can be narrowed by the second side wall 13b on the opposite side of the locking lip 14. As a result, the parting seal device 10 is temporarily assembled to the mounting flange 3.

After assembling the parting seal device 10 to the mounting flange 3, the seal portion 11 which is the vehicle outer side portion of the parting seal device 10 is fixed to the vehicle outer inclined surface 1b more than the mounting flange 3 on the door panel by the clip 4, and at the same time. The vehicle is positioned in the vertical direction. Further, the parting seal device 10 has a lip portion 15 inside the vehicle of the sensor installation portion 12, and a double-sided tape 16 is attached to the surface of the door panel of the lip portion 15 on the vehicle interior side surface 1a side of the mounting flange 3. Has been done. Finally, the lip portion 15 is crimped to the vehicle inner side surface 1a rather than the flange on the door panel via the double-sided tape 16, so that the lip portion 15 is completely fixed to the front end of the parting seal device 10 rear door 1.

The shape of the locking lip 14 according to the present embodiment will be described below. As shown in FIG. 1, the locking lip 14 inclines toward the bottom wall 13c from the first side wall 13a toward the second side wall 13b.

As described above, in an automobile having a character line CL, when the parting seal device 10 is assembled to the mounting flange 3, as shown in FIG. 2, the parting sealing device 10 is formed at a curved portion of the mounting flange 3 having a small curvature R in the vehicle left-right direction. The first side wall 13a and the second side wall 13b, which are the openings of the mounting portion 13, are deformed so that the opening interval on the flange root side is narrowed. That is, it bends so that the opening is closed, a load is applied to the mounting portion 13, and the tip of the locking lip 14 is deformed so as to come into contact with the second side wall 13b. However, in the parting seal device 10 of the present embodiment, the locking lip 14 is in the above-mentioned deformed state because it is inclined toward the bottom wall 13c from the first side wall 13a toward the second side wall 13b. Also facilitates the assembly of the mounting flange 3 and the mounting portion 13. In particular, the angle θ2 formed by the second side wall 13b and the inclined surface 14a of the locking lip 14 is preferably 45 degrees or less and 10 degrees or more. When the angle θ2 exceeds 45 degrees, when the mounting portion of the parting seal device is mounted on the flange, the inclined portion easily rises to the tip of the flange, which makes it difficult to mount the parting seal device. Further, when the angle θ2 is less than 10 degrees, the width of the locking lip in the left-right direction of the vehicle becomes extremely short, and it becomes difficult to attach the attachment portion of the parting seal device to the flange.

Further, the inclination of the locking lip 14 is such that the tip of the locking lip 14 is located on the bottom wall 13c side of the above Q, which is the end portion of the inclined surface of the second side wall 13b on the bottom wall 13c side at the time of the deformation. A gap is provided between the bottom wall 13c side end portion Q and the locking lip 14. Therefore, a gap remains between the base end side of the locking lip 14 and the second side wall 13b, which facilitates the insertion of the mounting flange 3. In particular, it is preferable that the gap is set to be larger than the thickness of the mounting flange 3. More specifically, as shown in FIG. 3, the distance between the bottom wall 13c side end portion Q and the point U (the front and rear positions are the same as the point Q) facing the Q on the inclined surface 14a of the locking lip 14. However, it is preferable that the thickness T of the mounting flange 3 is set to be larger than the thickness T. By doing so, the mounting flange 3 can be easily inserted into the mounting portion 13, and the inclination of the locking lip 14 can guide the mounting flange 3 to the back of the mounting portion 13 (bottom wall 13c side). According to such a configuration, as the mounting flange 3 is inserted into the bottom wall 13c side of the mounting portion 13, the space between the locking lip 14 and the second side wall 13b expands, and as a result, the mounting is performed as shown in FIG. The mounting portion 13 will be assembled to the flange 3.

Therefore, even if the parting seal device 10 according to the present embodiment is deformed as shown in FIG. 2, it can be easily and appropriately assembled to the mounting flange 3. Therefore, as shown in FIG. 1, the clip 4 and both sides are assembled after the assembly. The parting seal device 10 can be easily and completely fixed to the door panel of the rear door 1 by the tape 16. Further, in the present embodiment, since the parting seal device 10 is appropriately assembled to the mounting flange 3 at the mounting portion 13, the double-sided tape 16 can be sufficiently crimped to the door panel to prevent peeling.

In the parting seal device 10 according to the present embodiment, as shown in FIG. 1, the inclined surface 14a on the mounting flange 3 side of the locking lip 14, the inclined surface 13a-1 on the outside of the vehicle of the mounting portion 13, and the sealing portion 11 It is preferable that the inclined surface 17a of the thick-walled root portion 17 located on the base end side of the above is configured to be continuous without a step. By doing so, the inclined surface on the first side wall 13a side (seal portion side) of the mounting portion 13 becomes large, the mounting guidance effect of the mounting portion 13 on the mounting flange 3 can be increased, and the ease of assembly can be improved. can.

Further, in the parting seal device 10 according to the present embodiment, it is preferable that a thin portion is formed on the first side wall 13a or the bottom wall 13c on the inner surface side of the mounting portion 13, for example, by providing a recess. In this way, even when the opening of the mounting portion 13 is closed by the locking lip 14, the opening can be easily opened with a smaller force. As a result, the ease of assembling the parting seal device 10 to the mounting flange 3 can be further improved.

Further, although one locking lip 14 is provided in the parting seal device 10 according to the present embodiment, a plurality of locking lips 14 may be provided in order to firmly hold the mounting flange 3.

Further, in the parting seal device 10 according to the present embodiment, applicable materials include a foamed material of a rubber-like elastic body and a non-foamed material, and the material is not particularly limited, but in the case of rubber, EPDM (ethylene / propylene) is used. When the rubber) is a thermoplastic resin, it is preferable to use TPO (olefin-based thermoplastic resin). Although not shown, it is preferable to use a foaming material for parts that require flexibility, such as the seal portion 11, the sensor installation portion 12, and the lip portion 15.

In the present embodiment, the parting seal device 10 attached to the mounting flange 3 on the front end surface of the rear door 1 in order to seal the parting portion P between the front end of the rear door 1 and the rear end of the front door 2 of the automobile has been described. The parting seal device of the present invention is not limited to this. The parting seal device of the present invention may be attached to a mounting flange provided at the peripheral end of the back door, for example, in order to seal the parting portion at the peripheral edge of the back door of an automobile. Further, as a matter of course, the parting seal device of the present invention has a great effect when mounting the mounting portion on the portion where the mounting flange 3 is curved with a small radius of curvature, but the rear door of an automobile having no character line CL. It may be attached to the parting part between the front door and the front door.

As described above, according to the parting seal device of the present invention, when the parting seal device is attached to a part where the flange is curved with a small radius of curvature when it is attached to a parting portion such as a door end, the attachment portion is attached. Even if the opening groove is closed by the locking lip, the parting seal device can be easily and appropriately assembled to the mounting flange. As a result, the parting seal device can be sufficiently crimped to the door with double-sided tape and can be completely fixed, which is extremely useful.

1 Rear door 1a Inner side surface of the car than the flange on the door panel 1b Slope on the outside of the car than the flange on the door panel 2 Front door 3 Mounting flange 4 Clip 10 Parting seal device 11 Sealing part 12 Sensor mounting part 13 Mounting part 14 Locking lip 15 Lip part 16 Double-sided tape P Parting part Q The end on the inclined surface of the second side wall on the bottom wall side U The point facing Q on the inclined surface of the locking lip

Claims (5)

A parting seal device attached to a mounting flange formed on the door end in order to seal the parting portion of the door end of an automobile.
A hollow or lip-shaped sealing portion for sealing the parting portion, and
The door end is provided with a groove-shaped mounting portion that is arranged so as to be inside the vehicle from the seal portion at the time of mounting and can be inserted into the mounting flange.
The mounting portion is composed of a first side wall located on the seal portion side, a second side wall facing the first side wall, and a bottom wall continuous with the first side wall and the second side wall.
The mounting portion is provided with a locking lip extending from the first side wall toward the second side wall.
The locking lip is inclined toward the bottom wall from the base end to the tip of the locking lip, and the tip of the locking lip is not in contact with the second side wall to set a gap.
The opening end portion of the second side wall opposite to the bottom wall is inclined toward the first side wall side toward the bottom wall side of the mounting portion.
The inclination of the locking lip and the inclination of the opening end of the second side wall are such that when a load is applied to the mounting portion and the tip of the locking lip is deformed so as to come into contact with the second side wall, the contact position is reached. Is located on the bottom wall side of the inclined second side wall opening end, and at the bottom wall side end position of the inclined surface of the second side wall opening end, with the second side wall. A parting seal device characterized in that a gap is formed between the locking lip and the locking lip. The inclination of the locking lip and the inclination of the opening end portion of the second side wall are such that when a load is applied to the mounting portion and the tip of the locking lip is deformed so as to come into contact with the second side wall, the second side wall is formed. At the position of the bottom wall side end of the inclined surface of the open end of the side wall, the distance of the gap between the second side wall and the locking lip is configured to be larger than the thickness of the mounting flange. The parting seal device according to claim 1, wherein the parting seal device is characterized by the above. A thick root portion is provided between the hollow or lip-shaped seal portion and the mounting portion.
The parting seal device according to claim 1 or 2, wherein an inclined surface is continuously formed without a step from the inclined surface of the locking lip to the facing surface of the door panel at the root of the thick wall. When a load is applied to the mounting portion and the tip of the locking lip is deformed so as to come into contact with the second side wall, the angle formed by the second side wall and the inclined surface of the locking lip is 45 degrees or less. The parting seal device according to any one of claims 1 to 3, further comprising 10 degrees or more. The parting seal device according to any one of claims 1 to 4, wherein a thin portion is formed on the first side wall or the bottom wall.

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