JP2010083421A - Sealing structure of vehicle door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To discharge water entering a vehicle cabin from a clearance between a peeler weatherstrip, a mirror base, and a door glass without soiling the door glass. <P>SOLUTION: The sealing structure of a vehicle door is provided with an upper-edge weatherstrip 3a and a vertical edge weatherstrip 3b along an upper edge and a rear vertical edge of the mirror base 2 of a frameless door 1 of an automobile to seal between the mirror base 2 and a front peeler 4 and between the mirror base 2 and the door glass 5. The vertical edge weatherstrip 3b having a U-shaped cross section with its rear side opened is provided with a clearance 34 between the door glass 5 and itself on an inner surface of a side surface part 32 on the vehicle room side from side surface parts 32, 33 sandwiching a front edge 50 of the door glass 5 from inside/outside. The clearance 34 is communicated with a clearance H generated among three members of the peeler weatherstrip 40, the vertical edge weatherstrip 3b, and the door glass 5 when the door is closed. The water entering from the clearance H is guided to the clearance 34 of the vertical edge weatherstrip 3b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for an automobile door that seals around an automobile door, and in particular, seals between a mirror base and a front pillar provided at the front end of a door belt line of a frameless door and between a mirror base and a front edge of a door glass. The present invention relates to a sealing structure.

  A frameless type front door 1 used for a sports-type hardtop or a coupe cabriolet with a roof that can be opened and closed as shown in FIG. 5 has a substantially triangular mirror base at the front end of a door belt line 10 that forms the upper edge of the door panel. 2 is erected, and the side mirror 20 is supported by this. The mirror base 2 is provided with a weather strip 3 along the upper edge and the rear vertical edge thereof, between the upper edge of the mirror base 2 and the front pillar 4 facing the mirror base 2, and the rear vertical edge and the front of the mirror base 2. A space between the front edge of the door glass 5 provided on the door 1 so as to be movable up and down is sealed.

  As shown in FIGS. 5 and 6, the weather strip 3 for the mirror base is a molded product made of synthetic rubber or the like, and has an upper edge weather strip 3 a inclined downward along the upper edge of the mirror base 2, and the mirror base. A vertical edge weather strip 3b along the rear vertical edge 2 is formed in series. The upper edge weather strip 3a is pressed against the pillar weather strip 40 of the front pillar 4 when the door is closed. The vertical edge weather strip 3b forms a groove 30 having a substantially U-shaped cross section that opens rearward, and guides the front edge 50 of the door glass 5 up and down through the groove 30.

  By the way, as shown in FIG. 6, the upper end of the groove 30 of the vertical edge weatherstrip 3b is closed by a closed upper surface 31 formed integrally, and the front end of the upper edge 51 of the door glass 5 is the upper limit of the door glass 5 ascending. Abuts on the closed upper surface 31. Accordingly, a step corresponding to the thickness of the closed upper surface 31 is formed between the end edge of the closed upper surface 31 and the upper edge 51 of the door glass 5, and when the door is closed, the pillar weather strip 40 of the front pillar 4 is pressed against this. A small gap H having a substantially triangular shape is formed between the three members of the edge of the closed upper surface 31 and the upper edge 51 of the door glass 5.

  High-pressure water sprayed on the vehicle body during car washing or the like enters the gap H, and the intruded water flows down the side surface of the door glass 5 to the side surface of the glass casing and the casing surface of the door panel. There was a problem of getting dirty.

In Patent Document 1 below, a seal material provided at the upper end of a guide that partitions the bench glass and door glass of a frameless type door and abuts against the pillar weather strip of the front pillar when the door is closed, A water receiving lip is provided, and a clearance gap between the pillar weather strip and the upper edge of the sealing material in contact with the pillar weather strip and an upper edge of the bench glass, and a clearance gap between the upper edge of the sealing material and the upper edge of the door glass It has been proposed to receive water that invades from the floor and make the water received by the lip flow down along the interior surface of the bench glass.
However, the water receiving lip protrudes from the surface of the sealing material and forms a groove that opens upward, and it cannot be said that the groove is exposed and looks good. Also, the bench glass becomes dirty with water droplets that travel along the bench glass.
JP 2007-284209 A

  Therefore, the present invention allows water that enters the vehicle interior from the gap between the three members of the pillar weather strip, the mirror-based weather strip pressed against the pillar weather strip, and the upper edge of the door glass to flow down along the interior of the weather strip, An object of the present invention is to provide a seal structure for an automobile door that discharges without polluting the side surface of the glass.

According to the present invention, a substantially triangular mirror base is installed at the front end of a door belt line forming the upper edge of a door panel of a frameless door of an automobile, and when the door is closed, an upper edge weather strip along the inclined upper edge of the mirror base is provided. The vertical weather strip along the rear vertical edge of the mirror base is pressed against the pillar weather strip provided along the front pillar, guides the raising and lowering of the front edge of the door glass, and seals the front edge. In the automobile door seal structure in which an upper edge is pressed against the pillar weather strip, a gap generated between the three members of the pillar weather strip, the upper edge of the vertical edge weather strip, and the door glass is defined as the vertical edge weather strip. Communicating in the gap between the side surface of the door glass formed inside, the water that has entered from the gap between the three members above Introduced into the gap in the edge weatherstripping, forming the water introduced as allowed to flow down into the door panel (claim 1).
The water that has entered from the gap between the three members is guided to the gap in the weather strip of the vertical edge of the mirror base, and the water flows down and drains into the door panel, so that the door glass is not soiled.

2. The automobile door seal structure according to claim 1, wherein the mirror base vertical edge weatherstrip has a U-shaped cross-section opening at the rear side, and the lips at the front end of the left and right side portions sandwich the front edge of the door glass from inside and outside. In addition, the gap between the vertical edge weatherstrip and the door glass is formed on the inner surface of the side surface portion on the passenger compartment side, and the upper end of the vertical edge weatherstrip is closed on the closed top surface, and the pillar weatherstrip is closed when the door is closed. The gap between the three members formed along the edge of the closed upper surface in pressure contact is communicated with the gap on the inner surface of the side surface portion of the longitudinal edge weather strip on the passenger compartment side (Claim 2).
Water that has entered through the gap between the three members flows well into the door panel through the gap between the side wall portion of the vertical edge weatherstrip on the cabin side and the door glass.

3. The automobile door seal structure according to claim 2, wherein the vertical edge weatherstrip is formed with a substantially L-shaped notch at an upper end of a side surface portion on the vehicle compartment side, and enters from a gap between the three members. Water is caused to flow down along the vertical edge of the notch, and the water that has flowed down flows from the horizontal edge of the notch into the gap between the vertical edge weather strips (Claim 3).
Water that has entered through the gap between the three members can be reliably guided to the gap between the vertical edge weather strips by guiding the vertical edge of the notch on the side portion of the longitudinal edge weather strip on the passenger compartment side.

An embodiment in which the present invention is applied to a seal structure for sealing the periphery of a mirror base of a frameless type door will be described with reference to FIGS.
As shown in FIG. 1, the door 1 has a mirror base 2 erected at the front end of the door belt line 10 in a substantially triangular shape and having an upper edge of a front downward slope and a substantially vertical rear vertical edge. The side mirror 20 is attached to the outer surface of the mirror base 2. The mirror base 2 is made of a hard plate made of metal or a hard synthetic resin in which a core material is embedded, and its lower edge is fixed to the door panel.

  A weather strip 3 is mounted on the mirror base 3 along the upper edge and the rear vertical edge. The weather strip 3 is a molded article made of synthetic rubber, for example, a material in which PVC is mixed with NBR, and has an inclined upper edge weather strip 3a along the upper edge of the mirror base 3 and a vertical edge weather strip 3b along the rear vertical edge. Is formed in a series. The weather strip 3 has a shallow groove formed on the inner periphery thereof fitted on the outer periphery of the mirror base 2.

  FIG. 2 shows the upper end of the weather strip 3 where the upper edge weather strip 3a and the vertical edge weather strip 3b intersect, and is an enlarged side view as seen from the passenger compartment side with the door closed, and FIG. 3 shows the upper end of the weather strip 3 2 and 3, the upper edge weatherstrip 3a has a rounded thick wall covering the upper edge of the mirror base 2, and the upper edge has a width of the door glass 5 as shown in FIGS. The side of the passenger compartment side and the inside and outside of the vehicle are tapered toward the upper edge so as to have a thickness of about. The upper edge weather strip 3a seals between the mirror base 2 and the front pillar 4 by pressing the upper edge against the pillar weather strip 40 provided along the lower edge of the front pillar 4 when the door is closed.

  As shown in FIG. 2 and FIG. 4 which is a cross-sectional view taken along the line IV-IV, the vertical edge weather strip 3b has a substantially U-shaped round cross section that opens toward the rear, and the front edge 50 of the door glass 5 is inserted therein. A groove 30 is formed. Lips 321 and 331 are formed at the opening edges of the side wall portions 32 and 33 on the vehicle interior side and the vehicle outer side of the vertical edge weather strip 3b, respectively, and the front edge 50 of the door glass 5 inserted into the groove 30 is formed inside and outside. It sandwiches from both sides, guides the elevation of the front edge 50 of the door glass 5, and seals between the mirror base 2 and the door glass 5.

  In addition, the vertical edge weather strip 3 b has a groove width wider than the thickness of the door glass 5, and a gap 34 is provided between the inner surfaces of the side surface portions 32, 33 and the door glass 5. Small intermediate lips 322 and 332 are provided at intermediate positions on the inner surfaces of both side surface portions 32 and 33, and the door glass 5 is sandwiched from both the inner and outer surfaces.

As shown in FIGS. 2 to 4, the front and rear width of the upper end of the vertical edge weather strip 3b is narrowed to the front side.
An L-shaped notch comprising a vertical edge 35 and a horizontal edge 36 is provided at the upper end of the side surface portion 32 on the passenger compartment side, thereby making the front-rear width of the upper end of the side surface portion 32 narrower than the general portion. . The vertical edge 35 is provided at a position about half the front-rear width of the general portion of the side surface portion 32, and the vertical edge 35 is formed so as to contact the side surface of the door glass 5. A gap 34 between the lip 321 on the inner surface of the side surface portion 32 and the intermediate lip 322 is communicated with the horizontal edge 36 between the door glass 5.
On the other hand, the upper end of the side surface portion 33 on the vehicle exterior side is provided with a lip 331 at the front end inclined obliquely upward and forward, and the upper end thereof is aligned with the upper end position of the vertical edge 35 of the side surface portion 32 on the passenger compartment side. is there.

Thus, the front-rear length of the upper end of the groove 30 is shortened by narrowing the front-rear width of the upper ends of the side surface portions 32, 33. The upper end of the groove 30, that is, the upper end of the vertical edge weather strip 3 b is closed by a closed upper surface 31. The closed upper surface 31 is formed in a series of forward and downward slopes with the upper edge of the upper edge weatherstrip 3a. The edge 311 of the closed upper surface 31 is aligned with the upper end of the vertical edge 35 of the side surface portion 32 on the passenger compartment side and the upper end of the front obliquely inclined lip 331 of the side surface portion 33 on the vehicle outer side.
The front end of the upper edge 51 of the door glass 5 comes into contact with the closed upper surface 31 from below at the upper limit position.

  When the door is closed, the upper end 31 of the vertical edge weather strip 3b is pressed against the pillar weather strip 40 integrally with the upper edge of the upper edge weather strip 3a. The upper edge 51 of the door glass 5 is also pressed against the pillar weather strip 40. In this case, a step corresponding to the thickness of the closed upper surface 31 is formed between the end edge 311 of the closed upper surface 31 and the upper edge 51 of the door glass 5, and the pillar weather strip 40 and the closed upper surface 31 and the door glass 5 are in contact with this. Between the three members with the upper edge 51, a substantially triangular gap H is formed along the edge 311 of the closed upper surface 31.

  When high-pressure water sprayed at the time of car washing or the like enters the passenger compartment through the gap H, the water follows the vertical edge 35 of the notch provided at the upper end of the side portion 32 on the passenger compartment side of the vertical edge weather strip 3b. Then, it is guided downward, guided along the vertical edge 35 through the gap 34 of the horizontal edge 36 to the inner surface of the side surface portion 32, flows down into the door panel, and further drains out of the vehicle through the drain hole at the lower edge of the door panel.

  According to this embodiment, the water which penetrates from the gap H between the three members does not travel through the door glass 5, and the door glass 5 and the vehicle compartment surface of the door panel are not soiled. Further, the vertical edge weather strip 3b is provided with an L-shaped notch at the upper end of the side surface portion 32 on the passenger compartment side, and the vertical edge 35 allows the gap H between the three members and the clearance 34 on the inner surface of the side surface portion 32 to communicate with each other. The structure does not impair the appearance like a conventional water receiving lip.

It is a perspective view of the door belt belt line front end vicinity of the door which shows the weather strip of the mirror base which is the sealing structure of the motor vehicle door of this invention. FIG. 4 is an enlarged side view showing the main part of the present invention as viewed from the passenger compartment side around the upper end of the weatherstrip when the door is closed. It is the top view which looked around the upper end of the said weather strip from the top. It is sectional drawing which follows the IV-IV line of FIG. It is a side view showing the circumference of a mirror base of a frameless door of an automobile. FIG. 3 is an enlarged side view of the passenger compartment side showing the periphery of the upper end of a conventional weather strip corresponding to FIG. 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frameless type door 10 Door belt line 2 Mirror base 3 Weather strip 3a Upper edge weather strip 3b Vertical edge weather strip 31 Closed upper surface 311 Edge 32,33 Side surface part 321,331 Lip 34 (Gap in the vertical edge weather strip)
35 Vertical edge 36 Horizontal edge 4 Front pillar 40 Pillar weather strip 5 Door glass 50 Front edge 51 Upper edge H Gap between three members

Claims (3)

An approximately triangular mirror base is installed at the front end of the door belt line that forms the upper edge of the door panel of an automobile frameless door. When the door is closed, the upper edge weatherstrip along the inclined upper edge of the mirror base follows the front pillar. The vertical weather strip along the rear vertical edge of the mirror base guides the raising and lowering of the front edge of the door glass and seals the front edge, and the upper edge of the door glass is the upper edge of the door glass. In the automobile door seal structure that is pressed against the pillar weather strip,
The pillar weather strip, the upper edge of the vertical edge weather strip, and the gap generated between the three members of the door glass are communicated with the gap between the side surfaces of the door glass formed in the vertical edge weather strip,
A car door seal structure characterized in that water that has entered through the gap between the three members is introduced into the gap in the vertical edge weather strip, and the introduced water is allowed to flow into the door panel. The automobile door seal structure according to claim 1,
The vertical edge weatherstrip of the mirror base has a U-shaped cross section that opens at the rear side, and the lips at the ends of the side portions on the left and right sides sandwich the front edge of the door glass from the inside and outside, and the side surface of the vertical edge weatherstrip on the passenger compartment side Forming the gap between the door glass and the inner surface of the part,
The upper end of the vertical edge weatherstrip is closed at the upper surface of the closure, and the gap between the three members formed along the edge of the upper surface of the closure pressed against the pillar weatherstrip when the door is closed, and the vehicle side of the vertical edge weatherstrip A seal structure for an automobile door that communicates with the gap on the inner surface of the side surface of the vehicle. In the automobile door seal structure according to claim 2,
The vertical edge weather strip is formed with a substantially L-shaped notch at the upper end of the side surface portion on the passenger compartment side, and water that has entered through the gap between the three members flows down along the vertical edge of the notch. An automobile door seal structure in which water that has flowed down is allowed to flow from the horizontal edge of the notch into the gap between the vertical edge weather strips.

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