JP4929872B2 - Automobile door seal structure - Google Patents

Description

The present invention relates to a seal structure for an automobile door provided with a glass run attached to a vehicle door, a corner piece, and a door opening trim weather strip attached to the periphery of a vehicle body opening of a vehicle body.

In general, a vehicle door such as an automobile is provided with a glass run for sealing a peripheral portion of a sliding door glass. The glass run has a main body portion having a substantially U-shaped cross section and a pair of seal lips extending inwardly from the front ends of both side walls of the main body portion, and the main body portion is provided on the inner peripheral side of the door frame. It is fitted and attached to the channel portion.

And the vehicle inner side and vehicle outer side surface of the peripheral part of the door glass are sealed by the pair of seal lips.

In addition, when the corner shape of the door frame is a right angle or an acute angle shape, such as the rear upper corner portion of the front door, and the corner portion of the door opening on the body side is gently curved, these corner portions The gap between the glass run and the door opening trim weather strip on the body side is generated due to the difference in the radius of curvature, which may deteriorate the appearance quality.

Therefore, in the corner portion of the glass run, it is also possible to cover the gap with an extending wall portion formed to extend from the vehicle inner side wall portion to the inner peripheral side of the glass run to improve the appearance quality (for example, (See Patent Document 1).

In this case, a structure for supporting the extended wall portion is also required at the corner portion of the door frame, which leads to an increase in manufacturing cost of the door frame.

Furthermore, the extended wall portion may follow the movement of the seal lip associated with the sliding of the door glass, for example, and the tip portion (inner peripheral side edge portion) may be lifted.

In contrast, a locking portion is provided in the vicinity of the distal end portion of the extending wall portion, and the locking portion is locked to an end portion of an interior member such as a garnish, so that the floating portion near the distal end portion of the extending wall portion is lifted. Some have been prevented (for example, see Patent Document 2).

In addition, there is a type in which a block-shaped corner piece having a substantially triangular prism shape is attached to the corner portion of the door frame, and the corner portion of the hollow seal portion of the door opening trim weather strip is brought into contact with and sealed (see Patent Document 3). .)

However, since the one described in Japanese Patent Laid-Open No. 8-230465 has a substantially triangular prism shape, when the tip of the door glass touches and rises inside the vehicle, there is a risk of interfering with the vehicle exterior lower corner. In addition, the appearance of the glass run corner (molded part) was poor.
JP-A-8-295134 JP 2004-50881 A JP-A-8-230465

Even if an extended wall portion is provided on the glass run to improve the appearance quality as in the prior art described in JP-A-2004-50881, the front end of the door glass against the extended wall portion is touched to the inside of the vehicle. The risk of interference when climbing up cannot be resolved.

The present invention has been made in order to solve the above-mentioned problems, and the object thereof is to set a small molding portion at the corner portion of the glass run to improve the appearance quality. An automobile door seal structure that eliminates the possibility of interference with a corner piece when the tip of the vehicle is lifted by being touched inside the vehicle is provided.

In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to a corresponding means are added as needed.

Means 1. It is attached to the inner periphery of the door frame of an automobile door, guides the raising and lowering of the door glass, and includes a straight part formed by extrusion molding and a corner part formed by molding attached to the corner part of the door frame. In a vehicle door seal structure comprising a glass run, a corner piece attached to the inner peripheral side of the corner portion of the door frame, and a door opening trim weather strip attached to the periphery of the opening of the vehicle body, The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall to the inside of the substantially U-shaped cross section. The vehicle outer seal lip and the vehicle inner seal lip are provided so that the cross-sectional shape of the straight portion and the cross-sectional shape of the corner portion are the same. The corner piece is formed of a material harder than the glass run, and extends substantially perpendicularly from one end of the bottom wall attached to the inner peripheral side of the corner portion of the door frame, when the door is closed. The vehicle interior side wall abutting against the hollow seal portion at the corner of the door opening trim weather strip, and an inclined wall connecting the tip of the vehicle side wall and the other end of the bottom wall have a substantially triangular cross section. A structure for sealing a door of an automobile.

According to the means 1, the mold is attached to the inner periphery of the door frame of the door of the automobile, guides the raising and lowering of the door glass, and is molded to the straight part formed by extrusion and the corner part of the door frame. The glass run having the corner portion formed by the above-mentioned has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall. Since the vehicle-side seal lip and the vehicle-side seal lip that extend toward the inside of the U-shape are provided, and the cross-sectional shape of the straight portion and the cross-sectional shape of the corner portion are connected together, Without providing an extended wall part as in the prior art, the part can be set small and the appearance quality of the corner part can be improved.

The corner piece is made of a material harder than the glass run, and is attached to the inner peripheral side of the corner portion of the door frame, and extends substantially vertically from one end of the bottom wall. The opening trim weather strip has a vehicle inner side wall that contacts the hollow seal portion at the corner, and an inclined wall that connects the tip of the vehicle inner side wall and the other end of the bottom wall, and has a substantially triangular shape in cross section. As a result, it can be connected to the glass run gently on the outside of the vehicle, and there is no lower corner on the outside of the vehicle. it can.

Mean 2. 2. The automobile door seal structure according to claim 1, wherein an inclination direction of the inclined wall of the corner piece and an extending direction of the vehicle interior seal lip of the glass run are matched.

According to the means 2, since the inclination direction of the inclined wall of the corner piece and the extending direction of the inside seal lip of the glass run are matched, it seems that the glass run and the corner piece are smoothly connected. The function and effect of the means 1 can be further enhanced.

Means 3. The corner piece has a horizontal side portion forming one side of the corner portion of the door frame and a vertical side portion forming the other side, and the corner portion of the door frame forms an angle formed by the horizontal side portion and the vertical side portion. The automobile door seal structure according to means 1, wherein the seal structure is set to be slightly larger than the angle, and is compressed and attached when mounted on the door frame.

According to the means 3, the corner piece has a horizontal side portion forming one side of the corner portion of the door frame and a vertical side portion forming the other side, and an angle formed by the horizontal side portion and the vertical side portion is set to the door frame. Since it is set to be slightly larger than the angle formed by the corner portion and is compressed and attached at the time of mounting on the door frame, positioning becomes easy and the effect of the means 1 can be further enhanced.

Means 4. Locking claws are provided on the bottom walls of the horizontal and vertical sides of the corner piece, respectively, and locking holes are provided in the corner portions of the door frame at positions corresponding to the locking claws. The vehicle door seal structure according to claim 3, wherein the locking claw is locked in the locking hole and the corner piece is mounted on the door frame.

According to the means 4, the claw is provided on the bottom wall of each horizontal side and the vertical side of the corner piece, and the corner of the door frame is provided at a position corresponding to the claw. A locking hole is provided, and the locking claw is locked in the locking hole, and the corner piece is mounted on the door frame. Therefore, the positioning and mounting are easier with the elastic deformation of the corner piece itself. In addition, it can be securely fixed to the door frame, and the function and effect of the means 3 can be further enhanced.

Means 5. 5. The automobile door seal structure according to any one of means 1 to means 4, wherein the inclined wall of the corner piece has a surface shape obtained by changing the shape of a conical concave portion, which is a mortar shape, to 1/4 to 1/8.

According to the means 5, since the inclined wall of the corner piece has a surface shape obtained by changing the shape of the conical concave portion, which is a mortar shape, to 1/4 to 1/8, it seems to be smoothly connected to the glass run. In addition, the corner piece itself can be set to be compact, and the operational effects of the means 1 to means 4 can be further enhanced.

Means 6. Glass that is attached to the inner periphery of a door frame of an automobile, guides the raising and lowering of the door glass, and has a straight part formed by extrusion molding and a corner part formed by molding that is attached to the corner part of the door frame. In a vehicle door seal structure comprising a run, a corner piece attached to the inner peripheral side of the corner portion of the door frame, and a door opening trim weather strip attached to the periphery of the opening of the vehicle body,
The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall to the inside of the substantially U-shaped cross section. The vehicle outer side seal lip and the vehicle inner side seal lip are provided so as to be connected with the same cross-sectional shape of the straight portion and the cross-sectional shape of the corner portion,
The above corner piece
A vehicle inner side wall that extends from the vehicle frame inner side to the corner inner peripheral side of the door frame and contacts and seals with the door opening trim weather strip;
An inclined wall extending from the tip on the inner peripheral side of the vehicle inner side wall toward the inner peripheral surface of the previous door frame toward the vehicle outer side;
An automotive door seal structure having a clip portion that is locked in a locking hole provided in an inner peripheral surface of the door frame.

According to the means 6, the mold is attached to the inner periphery of the door frame of the door of the automobile, guides the raising and lowering of the door glass, and is attached to the straight part formed by extrusion and the corner part of the door frame. The glass run having the corner portion formed by the above-mentioned has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall. Since the vehicle-side seal lip and the vehicle-side seal lip that extend toward the inside of the U-shape are provided, and the cross-sectional shape of the straight portion and the cross-sectional shape of the corner portion are connected together, Without providing an extended wall part as in the prior art, the part can be set small and the appearance quality of the corner part can be improved. Further, the corner piece extends from the vehicle interior side of the door frame corner portion inner circumferential side of the door frame, and the interior side wall to abut seals the door opening trim weather strip, the inner circumference side of the vehicle inner side wall Because it has an inclined wall that extends from the tip of the vehicle toward the outside of the vehicle so as to be close to the inner peripheral surface of the previous door frame, the glass run and the corner piece appear to be gently connected, and the door frame It is possible to reliably seal between the openings of the vehicle body.

Further, a clip portion that is locked to a locking hole provided on the inner peripheral surface of the door frame is provided, and the corner portion is mounted on the door frame by the clip portion being locked to the locking hole. This facilitates positioning and mounting, and can be securely fixed to the door frame.

Embodiments will be described below with reference to the drawings. As shown in FIG. 1, an automobile door D (a front door in the figure: hereinafter simply referred to as “door”) as a vehicle door is provided with a glass run 1 that seals the peripheral edge of a door glass G that moves up and down. Yes.

The glass run 1 is made of EPDM (ethylene-propylene-diene copolymer) solid rubber, and as shown in FIG. 1, a linear portion 10 formed by extrusion corresponding to the upper side portion in the longitudinal direction. The straight portions 11 and 12 formed by extrusion molding corresponding to the longitudinal sides of the front and rear, and the corner portions 13 and 14 formed by mold forming connecting the ends of the straight portions 10, 11 and 10, 12 to each other. (Part with a dotted pattern in FIG. 1). Each of the straight portions 10 to 12 is formed in a substantially linear shape (in a long shape) by an unillustrated extruder. In addition, the corner portions 13 and 14 are connected and formed by molding with a mold apparatus (not shown) so that the two straight portions 10 and 11 and the straight portions 10 and 12 are connected to each other at a predetermined angle. ing.

More specifically, as shown in FIG. 2, the glass run 1 is attached to a channel portion 15 provided on the inner peripheral side of the door frame 2 and extends from the base portion 16 and both ends of the base portion 16. A main body portion 20 having a substantially U-shaped cross section including a side wall portion 17 and a vehicle outer side wall portion 18, and extends from the front ends of the vehicle inner side wall portion 17 and the vehicle outer side wall portion 18 to the inside of the main body portion 20, A pair of seal lips 21 and 22 are provided for sealing between them.

Further, around the rear upper corner portion of the glass run 1 corresponding to the rear upper corner portion C of the door frame 2, as shown in FIGS. As in the prior art, there is no extending wall portion extending from the front end of the vehicle interior side wall portion 17 to the center side (inner corner side of the door glass opening) of the door glass opening. Therefore, the corner portion (molded portion) can be set compactly, and the appearance at the corner portion can be improved.

As shown in FIGS. 3 to 5, a corner piece 3 is attached to the center side (corner portion inner peripheral side) of the door glass opening at the inside of the corner portion of the door frame 2 of the door D. In particular, in the rear upper corner portion C (see FIG. 1) of the door frame 2, the corner piece 3 is located inside the door frame 2 so as to face the hollow seal portion 9a of the door opening trim weather strip 9 on the vehicle body side. It is attached to the circumferential position (lower side in FIG. 5).

The corner piece 3 will be described in more detail. At a portion corresponding to the rear upper corner portion C of the door frame 2, the bottom wall 6 serving as a mounting base portion extends substantially vertically from one end of the bottom wall 6, and substantially extends to the door glass G. From the vehicle inner side wall 4 arranged in parallel, and the inclined wall 5 extending inclined toward the front end (lower side in FIG. 5) of the vehicle inner side wall 4 and the other end (right side in FIG. 5) of the bottom wall 6. The cross section has a substantially triangular shape.

Further, the inclination direction of the inclined wall 5 of the corner piece 3 and the extending direction of the vehicle interior seal lip 21 of the glass run 1 are made to coincide. For this reason, the corner piece 3 and the glass run 1 appear to be gently connected and look good.

The angle formed by each bottom wall 6 of the corner piece 3 is such that the horizontal side portion (on the straight line portion 10 side of the glass run 1) forming one side of the rear upper corner portion C of the door frame 2 and the vertical side portion forming the other side ( The angle formed by the straight line 12 side of the glass run 1 is set slightly larger. The bottom wall 6 is locked to the locking hole 2A on the inner peripheral surface of the rear upper corner portion C of the door frame 2 by a clip portion 6a as a locking claw. Therefore, when the corner piece 3 is attached to the door frame 2, the corner piece 3 is attached so as to be slightly compressed, and further, the both side portions of the rear upper corner portion C of the door frame 2 of the clip portion 6a are locked. In combination with the locking to the hole, positioning is easy and can be reliably performed.

The vehicle interior side wall 4 is in contact with the hollow seal portion 9a at the corner portion of the door opening trim weather strip 9 when the door is closed to seal between the door D and the body.

As described in detail above, by providing the corner piece 3, it is possible to ensure the sealing performance at the corner portion of the door frame 2. Further, the appearance quality can be improved by reducing the corner portion 14 of the glass run 1. Furthermore, by making the cross-sectional shape of the corner piece 3 into a substantially triangular shape, it is possible to suppress the occurrence of a problem that the tip of the door glass G interferes with the corner piece 3 when the door glass G is raised.

Further, the inclination direction of the inclined wall 5 of the corner piece 3 and the extending direction of the inboard seal lip 21 of the glass run 1 are matched, or the angle formed by the bottom walls 6 of the corner piece 3 is set to the rear upper side of the door frame 2. The angle between the horizontal side portion forming one side of the corner portion C and the vertical side portion forming the other side is set to be slightly larger, and each bottom wall 6 is placed inside the rear upper corner portion C of the door frame 2 by the clip portion 6a. The above-described effects can be further enhanced by locking the locking holes 2A on the peripheral surface.

In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

(A) The bottom wall 6 may be fixed to the inner peripheral surface of the door frame 2 by double-sided adhesive tape.

(B) In the above embodiment, the corner piece 3 is formed as a separate body. However, the corner piece 3 may be integrally formed when the corner portion 14 of the glass run 1 is molded. In this case, a core material made of a material harder than the material of the glass run 1 may be inserted into the corner piece portion, and the molding material (corner portion 14) may be turned on the surface.

(C) EPDM rubber is adopted as the material (elastic material) of the glass run 1, but in addition, styrene butadiene rubber, butadiene rubber, chloroprene rubber, butyl rubber, nitrile rubber, ethylene propylene copolymer rubber, acrylic rubber, etc. These rubber materials may be used, or other elastic materials having rubber-like elasticity such as olefin-based thermoplastic elastomer (TPO) or soft polyvinyl chloride.

(D) As a material of the corner piece 3, a material harder than the glass run material, for example, a synthetic resin such as a polyolefin resin such as polyethylene or polypropylene, a polyamide resin, or an olefin thermoplastic elastomer can be used. .

(E) The shape of the corner piece 3 is not limited to the above embodiment. For example, as shown in FIG. 6, you may form the inclined wall 35 of the corner piece 30 in the curved surface shape made into 1/8 of the cone recessed surface shape which is a mortar shape. In this case, the connection from the inclined wall 35 to the in-vehicle seal lip 21 of the glass run 1 becomes smoother, and the corner piece itself can be made compact, and the appearance is improved. The setting range of the inclined wall 35 is 1/4 to 1/1 based on the contact range with the hollow seal portion 9a of the corner portion of the door opening trim weather strip 9 when the door on the inner side wall of the corner piece 30 is closed. It can be arbitrarily set within the range of 8.

It is a front view which shows a motor vehicle door. It is the JJ sectional view taken on the line of FIG. 1 which shows a glass run. It is the partial expansion front view of the corner part periphery of the glass run and corner piece in this embodiment. It is a partial expansion perspective view of the corner part periphery in this embodiment. It is the KK sectional view taken on the line of FIG. 3 which shows the corner part in this embodiment. It is a partial expansion perspective view of the corner part periphery in another embodiment.

DESCRIPTION OF SYMBOLS 1 ... Glass run, 2 ... Door frame, 3, 30 ... Corner piece, 4, 34 ... Car interior side wall, 5, 35 ... Inclined wall, 6, 36 ... Bottom wall, 9 ... Door opening trim weather strip, 10, DESCRIPTION OF SYMBOLS 11, 12 ... Straight part, 13, 14 ... Corner part, 15 ... Channel part, 16 ... Base part, 17 ... Car side wall part, 18 ... Car side wall part, 20 ... Main part, D ... Car door, G ... Door glass.

Claims (6)

  It is attached to the inner periphery of the door frame of an automobile door, guides the raising and lowering of the door glass, and includes a straight part formed by extrusion molding and a corner part formed by molding attached to the corner part of the door frame. In a vehicle door seal structure comprising a glass run, a corner piece attached to the inner peripheral side of the corner portion of the door frame, and a door opening trim weather strip attached to the periphery of the opening of the vehicle body, The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall to the inside of the substantially U-shaped cross section. The vehicle outer seal lip and the vehicle inner seal lip are provided so that the cross-sectional shape of the straight portion and the cross-sectional shape of the corner portion are the same. The corner piece is formed of a material harder than the glass run, and extends substantially vertically from a bottom wall attached to the inner peripheral side of the corner portion of the door frame, and a vehicle inner side end of the bottom wall, A vehicle inner side wall that comes into contact with a hollow seal portion at a corner portion of the door opening trim weather strip when the door is closed, a front end on the inner peripheral side of the corner portion of the door frame on the inner side wall, and a vehicle outer side end of the bottom wall And an inclined wall connected to each other, and has a substantially triangular cross section.   2. The automobile door seal structure according to claim 1, wherein an inclination direction of the inclined wall of the corner piece coincides with an extending direction of the inner seal lip of the glass run.   The corner piece has a horizontal side portion forming one side of the corner portion of the door frame and a vertical side portion forming the other side, and the corner portion of the door frame forms an angle formed by the horizontal side portion and the vertical side portion. 2. The door door seal structure according to claim 1, wherein the door door seal structure is set to be slightly larger than the angle and is compressed when attached to the door frame. Locking claws are provided on the bottom walls of the horizontal and vertical sides of the corner piece, respectively, and locking holes are provided in the corner portions of the door frame at positions corresponding to the locking claws. The automobile door seal structure according to claim 3, wherein the locking claw is locked in the locking hole, and the corner piece is mounted on the door frame. 5. The automobile door seal according to claim 1, wherein the inclined wall of the corner piece has a surface shape in which a conical recess surface shape which is a mortar shape is ¼ to ８. Construction. Glass that is attached to the inner periphery of a door frame of an automobile, guides the raising and lowering of the door glass, and has a straight part formed by extrusion molding and a corner part formed by molding that is attached to the corner part of the door frame. In a vehicle door seal structure comprising a run, a corner piece attached to the inner peripheral side of the corner portion of the door frame, and a door opening trim weather strip attached to the periphery of the opening of the vehicle body,
The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall to the inside of the substantially U-shaped cross section. The vehicle outer side seal lip and the vehicle inner side seal lip are provided so as to be connected with the same cross-sectional shape of the straight portion and the cross-sectional shape of the corner portion,
The above corner piece
A vehicle inner side wall that extends from the vehicle frame inner side to the corner inner peripheral side of the door frame and contacts and seals with the door opening trim weather strip;
An inclined wall extending from the tip on the inner peripheral side of the vehicle inner side wall toward the inner peripheral surface of the previous door frame toward the vehicle outer side;
An automotive door seal structure having a clip portion that is locked in a locking hole provided in an inner peripheral surface of the door frame.

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