JPH04852B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an improvement in a weather strip attached to the outer edge of a sunroof in an automobile equipped with a sunroof.

Prior Art In the case of a sunroof that is attached to the opening of the roof panel of an automobile in a sliding or removable manner, a comparison is generally made between the inner circumferential side of the drip formed around the opening on the vehicle body side and the sunroof. In addition to providing a precise seal, a weather strip attached to the outer edge of the sunroof is pressed relatively gently against the outer periphery of the drip to form a double seal.

FIG. 1 shows an example of a conventional weather strip 2 that is attached to the outer edge of a sunroof 1 made of glass, for example. This weather strip 2 has a mounting base 5 having a glass fitting groove 3 and a sash fitting groove 4, and a hollow shape having a substantially semicircular cross section formed incidentally on the surface of the mounting base 5 that becomes the outer peripheral side of the sunroof. The hollow seal part 6 is integrally extruded from an elastic material such as rubber, and after the molding, flocking 7 is applied only to the outer surface of the hollow seal part 6 by an electrostatic flocking method or the like. ing.
This flocked hair 7 has a length of about 1 to 2 mm,
The weather strip 2 is adapted to be relatively gently pressed against the roof panel 8 on the outer periphery of the drip drip within the length of the flocking 7, and is pressed against the roof panel 8 on the outer circumference side of the drip drip relatively gently. The sealing effect was achieved while reducing sliding resistance. Note that 9 indicates a sash that is attached in a frame shape around the glass sunroof 1, and 10 indicates an adhesive.

However, although the conventional weather strip 2 in which sealing is performed using only the flocked hair 7 has the advantage of reducing sliding resistance, it is still insufficient in terms of sealing effect, and has a high resistance to rainwater. In addition to poor watertightness, the sound insulation performance was also low, and the effectiveness of double sealing inside and outside was halved.

Purpose of the Invention This invention was made in view of the conventional problems as described above, and its purpose is to provide a sunroof that can significantly improve watertightness and sound insulation without increasing sliding resistance. The objective is to provide weather strips for

Composition of the Invention The weather strip for a sunroof according to the present invention includes a mounting base attached to the outer edge of the sunroof, and a hollow shape having a substantially semicircular cross section, which is attached to the surface of the mounting base on the outer peripheral side of the sunroof. In addition, in the weather strip for a sunroof, which consists of a hollow seal part with flocked surface,
A thin protrusion is formed on the top surface of the hollow seal part, and the protrusion is pressed against a roof panel, etc. together with the flocked hairs, so that the gaps between the flocked hairs are completely sealed. It is.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail based on the drawings. Incidentally, the same parts as in the conventional example are given the same reference numerals.

FIG. 2 is a cross-sectional view of a weather strip 2 for a sunroof according to the present invention, which consists of a mounting base 5 and a hollow seal portion 6 that are integrally extruded as described above. The mounting base 5 has a glass fitting groove 3 and a sash fitting groove 4 formed therein. The hollow seal part 6 is formed in a hollow shape with a substantially semicircular cross section on the surface of the mounting base 5 that is the outer circumferential side of the sunroof, and has flocks 7 with a length of about 1 to 2 mm on the outer surface.
are densely applied, and thin protrusions 11 are formed on the top surface. The protrusion 11 is integrally extruded with the hollow seal portion 6 and the mounting base 5 in a manner that protrudes substantially horizontally with respect to the sunroof, and its protrusion length is approximately the same as or longer than the length of the flocking 7. It is set slightly shorter.

Therefore, when the weather strip 2 is brought into relatively gentle pressure contact with the roof panel 8 (see FIG. 1) as described above, in addition to the sealing effect provided by the flocks 7, the tips of the protrusions 11 will Panel 8
It comes into direct contact with the surface and completely closes the gap between the flocks 7 to seal the inside and outside. Therefore, extremely high watertightness and sound insulation properties can be ensured compared to a seal using only the flocked hair 7. On the other hand, since the protrusion 11 has an extremely thin wall thickness in the vertical direction in the figure, the sealing reaction force generated thereby is relatively small, that is, the increase in sliding resistance is so small that it can be ignored in practical terms. . In particular, since the protrusion 11 is located at the top of the hollow seal part 6 with a substantially semicircular cross section, even if it is strongly pressed against the roof panel 8 due to an assembly error, the entire hollow seal part 6 remains intact. Since the seal is deformed, the seal reaction force does not increase excessively. Therefore, smooth operation such as sliding operation of the sunroof is not impaired. Moreover, the protrusion 11, except for its tip, is half buried in the upper and lower flocks 7, and the roof panel 8 is covered with the flocks 7.
Since the protrusions 11 are in sliding contact with each other, there is little wear on the protrusions 11 due to sliding operations of the sunroof, etc., and high durability is achieved.

In addition, in the above embodiment, a weather strip used for a glass sunroof was explained.
It goes without saying that the present invention is not limited to this, and that various changes can be made to the shape of the mounting base 5, etc.

Effects of the Invention As is clear from the above explanation, according to the weather strip for a sunroof according to the present invention, the sealing performance can be improved without increasing the sliding resistance during the sliding operation of the sunroof. , watertightness and sound insulation against rainwater and car wash water are improved, and the seal reliability and marketability of the sunroof portion as a whole can be improved. In particular, since the thin protrusion is located at the top of the hollow seal section, which has an approximately semicircular cross section, even if it is pressed strongly against the roof panel due to assembly errors, the entire hollow seal section will deform. This prevents the seal reaction force from increasing. In addition, since the protrusions are covered with the flocked hollow seal part and come into pressure contact with the roof panel, there is less wear and tear associated with sunroof operation.
It has excellent durability.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a conventional weather strip for a sunroof when the sunroof is attached, and FIG. 2 is a sectional view showing an embodiment of the weather strip for a sunroof according to the present invention. 2...Weather strip, 3...Glass fitting groove, 4...Sash fitting groove, 5...Mounting base, 6
...Hollow seal portion, 7...Flocking, 11...Protrusion.

Claims (1)

[Claims] 1 A mounting base attached to the outer edge of the sunroof,
In the weather strip for a sunroof, which is formed along with the surface of the mounting base on the sunroof outer circumferential side and is formed into a hollow seal having a substantially semicircular cross section and having a flocked surface, the hollow seal A sunroof weather strip characterized by having thin protrusions formed on the top surface of the sunroof.