JP3409724B2 - Weather strip for car door - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip provided on a belt line portion of an automobile door, and more particularly to a weather strip inside a vehicle facing an inner surface of a door glass. is there. 2. Description of the Related Art As shown in FIGS. 2 and 3, a door inner panel (hereinafter referred to as "inner panel") 2 and a door outer panel (hereinafter referred to as "inner panel") are provided on a belt line portion of an automobile door D.
The weather strips 4 and 5 made of synthetic resin or rubber are attached along the upper edge of the outer panel 3, respectively, and extend from the mounting bases 40 and 50 of the weather strips 4 and 5 in two vertical steps. The door glass G is sandwiched between its inner and outer surfaces by the sealing lips 41a, 41b, 51a, and 51b that come out, and the gap between the door glass G and the inner panel 2 and the door glass G and the outer panel 3 are formed.
And wipes the inner and outer surfaces when the door glass G is raised and lowered. The weather strips 4 and 5 are generally locked to the inner panel 2 and the outer panel 3 by clips 6 and 7, respectively (Japanese Utility Model Publication No. 6-29069). As shown in FIGS. 3 and 4, clips 6 for locking the weather strip 4 on the inside of the vehicle facing the inner surface of the door glass G are first locking pieces from the lower end and the upper end of the substrate 60, respectively. 61 and the second locking piece 62
With the structure extending along 0, the lower end portion of the mounting base 40 is press-fitted between the substrate 60 and the first locking piece 61 before the weather strip 4 is mounted, so that the weather strip 4 is mounted on the weather strip 4. . Note that the lower seal lip 41b of the weather strip 4 has a hole 411 formed at the base of the clip mounting portion, and the tip of the first locking piece 61 is inserted into the hole 411. It has become. In this way, the plurality of clips 6 are mounted on the weather strip 4 at predetermined intervals. On the other hand, a cutout hole 21 is provided at the upper end edge of the inner panel 2 at a position corresponding to the clip mounting position of the weather strip 4, and the upper end of the door trim 8 covering the inner panel 2 is also provided with the above-mentioned cutout. A notch 81 is formed at a position corresponding to the hole 21. The weather strip 4 is fitted from above by inserting the second locking piece 62 of the clip 6 attached thereto into the notch 81 of the door trim 8, and the opening of the hole 21 of the inner panel 2 is opened. With the lower edge inserted between the substrate 60 of the clip 6 and the second locking piece 62, the mounting base 4
By pushing 0 downward, it is locked along the upper edge of the inner panel 2. At this time, the leading edge of the fin 42 formed along the upper end of the mounting base 40 of the weather strip 4 is pressed against the upper terminal upper surface of the door trim 8, and the upper terminal is covered by the fin 42. . The fin portion 42 is reduced in thickness from the root to the tip so that the pushing force when pushing the mounting base 40 is not increased, and the tip edge is pressed against the upper terminal upper surface of the door trim 8. Sometimes it bends easily.
Also, if the fin 42 is too wide, the appearance of the belt line portion will be impaired.
1 is formed so as to be narrow enough to hide it. Therefore, in the notch 81 forming portion, the wrap margin between the fin portion 42 and the door trim 8 is particularly narrow. When the occupant gets on and off the door glass G with the door glass G lowered and fully opened, the elbow or hand hits the fin 42 of the weather strip 4 as shown by a broken line in FIG. When the fin portion 42 is pushed into the tip of the mounting base 40 integrally, the thin tip portion of the fin portion 42 is deformed in a wavy shape, and the leading edge may be caught in the notch 81 of the door trim 8. When it is entangled, the leading edge engages with the notch 81 in the escape direction, and does not come off due to the repulsive force of the fin portion 42, so that the appearance of the belt line portion of the door is impaired. In addition, it is troublesome to take out the leading edge of the fin portion 42 that is involved each time, and if left as it is, permanent deformation occurs, and even if it is taken out, the leading end becomes a waveform, and the appearance is also impaired. Accordingly, an object of the present invention is to provide a weather strip in which the fin portion 42 is hardly caught in the notch 81 of the door trim 8 and is restored by the repulsive force of the fin portion 42 even if it is caught. It was done as. SUMMARY OF THE INVENTION The present invention is a weatherstrip provided along an upper edge of an inner panel of an automobile door having a door glass that can be raised and lowered, and is locked and attached by a clip. includes a fin portion formed along the upper end of the sealing lip and the mounted base portion is formed on the surface facing the door glass of the mounting base, weatherstrip mounting
In only state, the upper terminal of the door trim provided with a notch for inserting the clip with covering the upper edge of the door inner panel, in weather strips without covering by the fin, the fins And its roots
The thickness gradually decreases from the base to the tip, and upwards
A terminal edge was formed along the distal end of the fin , thicker than the distal end, and abutted on the upper terminal upper surface of the door trim . Then, the terminal edge is cross-sectioned downward from the upper surface of the tip of the fin.
It is formed into a bead shape that curves almost semicircular and swells to the lower side.
Was . [0010] By increasing the rigidity of the terminal edge of the fin by making the terminal edge thick, even if the occupant's elbow or hand hits the fin, the terminal edge is unlikely to bend in a wavy shape, so that the door trim is not wound into the notch. Is prevented. Further, since the tip of the fin is thin, it is easy to bend in the thickness direction, and the pushing force at the time of attaching the weather strip hardly increases. In addition, even if the terminal edge of the fin and the above-mentioned notch are slightly caught, the terminal edge is formed into a bead-like shape, so that the terminal edge becomes slippery with respect to the notch, and the repulsive force of the fin itself is obtained. The terminal edge comes out of the notch. An embodiment of the present invention will be described with reference to FIGS. 1, 2 and 4. FIG. The weatherstrip 4 attached along the upper edge of the inner panel 2 of the automobile door D is an extruded body of a vinyl chloride resin, and the door strip is formed by a vertical wall strip-shaped mounting base 40 and a door glass G of the mounting base 40 facing the door glass G. Upper and lower two-stage seal lip 41 extending diagonally upward toward glass G, with the tip end contacting the inner surface of door glass G
a, 41b, and fins 42 extending obliquely downward from the upper end of the mounting base 40 toward the vehicle compartment. The flocking 41 is provided on the sealing lip 41a, 41b on the contact surface with the door glass G.
0 is given. The fin 42 has a gently curved cross-section that is convex upward and extends from its root 421 to its tip 422.
The thickness gradually decreases to the side. A ball-shaped terminal edge 423 is formed along the tip 422 in a series. The terminal edge 423 has a shape that is curved in a substantially semicircular cross section downward from the upper surface of the tip 422 and swells toward the lower surface . The thickness t1 of the terminal edge 423 is larger than the thickness t2 of the tip 422 forming the neck of the terminal edge 423. The size of the thickness t1 depends on the size of the thickness t2, but is about 1.5 to 2 times the thickness t2. For example, when the thickness t2 is 0.6 mm, the thickness t1 is 1.
It is about 0 to 1.2 mm. Clip 6 to be attached to weather strip 4
Is substantially the same as that of the related art, is made of a hard synthetic resin, a first locking piece 61 extends upward along the front surface of the substrate 60 from the lower end of the substrate 60, and a second engaging member 61 extends from the upper end of the substrate 60. The stopper 62 extends downward along the back surface of the substrate 60, and its tip is open in a direction away from the substrate 60. Then, the plurality of clips 6 are attached to the weather strip 4 by press-fitting the lower ends of the mounting bases 40 of the weather strip 4 between the substrate 60 and the first locking pieces 61 at predetermined intervals.
In this case, the first locking piece 61 is attached to the lower seal lip 4.
1b is inserted into the hole 411 formed at the base. On the other hand, the inner panel 2 is covered with a door trim 8 made of a synthetic resin plate. The upper edge of the inner panel 2 is bent downward in an inverted U-shaped cross section. At the upper end of the door trim 8 covering the upper edge of the inner panel 2, a notch slightly wider than the second locking piece 62 of the clip 6 is provided at an edge at a position corresponding to the mounting position of the clip 6. 8
1 is formed. A cutout hole 21 having substantially the same width as the notch 81 is formed in a window shape at a position corresponding to the notch 81 at a bent corner portion of the upper edge of the inner panel 2. In the weather strip 4, the second locking piece 62 of each clip 6 attached thereto is inserted into the notch 81 of the door trim 8 from above, and the mounting base 40 is pushed downward, so that each of the inner panel 2 is pressed. The lower edge of the opening of the through hole 21 is pressed into the space between the substrate 60 of the clip 6 and the second locking piece 62 to be attached to the inner panel 2. When the occupant gets on and off the door D on which the weather strip 4 is mounted as described above, the door glass is fully opened, the elbow or the hand hits the fin 42 of the weather strip 4, and
Even if the fin 42 is pushed outward together with the upper end of the mounting base 40 and the terminal edge 423 moves to the notch edge position of the notch 81 of the door trim 8, the terminal edge 423 is formed thick. The terminal edge 423 is notched 81 because it is not substantially deformed in the thickness direction and the shape is maintained substantially in a straight line.
Is straddled in the width direction, and hardly falls into the notch 81. Therefore, when the load acting on the fin portion 42 is eliminated, the terminal edge 423 of the fin portion 42 does not catch on the notch 81, and the fin portion 42 returns to its original shape. Further, as shown by the broken line in FIG. 1B, even if the terminal edge 423 of the fin 42 slightly drops, the terminal edge 423 slightly engages with the notch edge of the notch 81. The terminal edge 423 easily comes out of the notch 81 due to the repulsive force of the fin 42 itself. In particular, if the terminal edge 423 is formed in a bead shape, the terminal edge 423 is easily slid with respect to the notch edge of the notch 81.
Getting out of is easier. According to the present invention, the upper terminal of the door trim is provided along the upper edge of the inner panel of the vehicle door and is clipped, and the fin of the upper edge covers the upper edge of the inner panel. In the covering weather strip, even if an external force acts on the fin, the terminal edge does not get caught in the notch for clip insertion formed in the upper terminal of the door trim, and the fin always keeps a regular shape, The exterior quality of the interior of the door belt line is not impaired.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (A) is a cross-sectional view showing a state of mounting a weather strip of the present invention at a position along line AA in FIG. 2, and FIG. 1 (B).
FIG. 1 is an enlarged sectional view of a fin forming portion of the weather strip of the present invention, and FIG. 1C is a diagram showing a thickness of a tip of the fin. FIG. 2 is a front view of the inside of the automobile door to which a weather strip is attached along a waist line. FIG. 3 is a cross-sectional view of the conventional weather strip at a position along the line AA in FIG. 2; FIG. 4 is a view showing a manner of attaching a weather strip by a clip. FIG. 5 is a view showing a fin of a conventional weather strip and a deformation thereof. [Description of Signs] D Automobile door G Door glass 2 Door inner panel 4 Weather strip 40 Mounting base 42 Fin 422 Fin tip 423 Fin terminal edge 6 Clip 8 Door trim 81 Notch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B60J 10/08 B60J 5/00 B60R 13/00

Claims (1)

Claims: 1. An automobile door provided with an ascending and descending door glass (G) is installed along an upper edge of a door inner panel (2) , and a lower end of a mounting base (40) . Clip attached to
(6) A weather strip (4) locked to the upper edge of the door inner panel (2) by the mounting base (4).
Seal lips formed on the surface facing the door glass (G) of 0) (41a), (41b) and the fin portion formed along the upper end of the mounting base portion (40) comprises a (42), de Ain'napaneru (2) the clip with covering the upper edge
The upper end of the door trim (8) in which the notch (81) for inserting the door is formed is covered with the fin (4).
In a seaweed weatherstrip, the fin
(4) from the root (421) to the tip (422)
The thickness gradually decreases, and the upward convex shape is gentle.
The upper end of the door trim (8) is formed in a curved cross-sectional shape.
The terminal edge (423) contacting the upper surface of the end is
22) It is curved in a substantially semicircular cross section downward from the upper surface of
Bulges to the lower surface side and is thicker than the tip (422).
A weather strip for an automobile door, wherein the weather strip is formed in a bead shape .