JPS5848895Y2 - Automotive weather strip - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile weather strip that is attached to the front edge of the side opening of the vehicle body of an automobile, particularly an automobile having a door glass with a satsuraless structure, and seals between the leading edge and the door glass. The main purpose is to prevent wind noise from occurring when driving at high speeds.

In general, as shown in Figure 1...-Todotsubu type automobiles, etc.
In an automobile having a door glass with a satsuri-less structure, the weather strip that seals between the side opening 1 of the vehicle body and the door glass 2 is made of an elastic material such as rubber or synthetic resin and has a hollow cross section. Its base is held by a retainer fixed to the side opening of the vehicle body with screws, etc.
It is installed with the seal wall facing the door glass.

Figure 2 shows the front edge of the side opening of the vehicle body, and shows the front pillar inner 41 of the front pillar 4, which has a closed cross section.
The base plate 1 of the weather strip 3' formed in a hollow cross section is held in the retainer 5 fixed to the seal wall 32.
When the door glass 2 is closed and the edge is pressed against the seal wall 32, the seal wall 32 curves to wrap around the edge of the door glass 2, and the seal Gender is preserved.

In the figure, 20 is a front windshield.

By the way, a gap groove 8 is formed between the outer wall 33 of the weather strip 3' and the mounting end of the molding 7 facing the outer wall 33, and when the car is running, the air flow shown by the arrow F along the side of the car body The air in the groove 8 is sucked out, and a vortex W is generated at the opening of the groove 8, and the resulting sucking sound and dullness are a cause of wind noise.

Therefore, the present invention forms a thin protrusion that can be easily deformed on the outer surface of a weather strip, especially a weather strip that is attached to the front edge of the side opening of the vehicle body, and makes it constantly press against the opposing vehicle body member such as a molding by separating the gap groove. Therefore, by sealing the gap groove, wind noise is prevented.

Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIG. 3, a long weather strip 3a made of synthetic resin includes a base 31, an inner wall 34,
It consists of a seal wall 32 and an outer wall 33, and a hollow portion 35 is formed in the longitudinal direction between these walls.

The base 31 and the inner wall 34 are thicker than other parts, and the inner wall 34 further has hollow parts 36 and 37 formed therein.

A tongue-shaped protrusion 38a is integrally formed on the outer surface of the outer wall 33 at a position close to the seal wall 32.

This protrusion 38a is inclined with respect to the outer wall 33 and the base 3
It extends in one direction, and its proximal end is approximately as thick as the outer wall 33, and its distal end is thinner.

In the second embodiment shown in FIG. 4, the protrusion 38b extends from a position on the outer surface of the outer wall 33 near the base 31 toward the seal wall 32.

The other structure is substantially the same as the first embodiment.

In the third embodiment shown in FIG. 5, on the outer surface of the outer wall 33,
A protruding portion 38c that is thinner than the outer wall 33 is integrally formed.

This protruding portion 38c bulges out from the outer wall 33 in a semicircular arc shape and forms a curved inclined surface with respect to the outer wall 33.

6 and 7 show how the weather strip 3a of the first embodiment is attached to the front pillar that constitutes the front edge of the opening on the side of the vehicle body. FIG. 7 shows the state when the door and door glass are closed.

As shown in FIG. 6, a retainer 5 is screwed to the front pillar inner 41 of the front pillar 4, which has a closed section formed by a front pillar inner 41 and a front pillar outer 42. The base portion 31 of is fitted and fixed.

A molding 7 is provided on the front pillar inner side at the outer joint portion of the front pillar inner and outer members 41 and 42.
One end is screwed, and the other end is fixed in contact with the front windshield 20 which is fixed to the front pillar outer 42 with an adhesive 6, and covers the peripheral edge of the front pillar 4 and the front windshield 20. ing.

The seal wall 32 of the weather strip 3a faces the front edge of the door glass 2, and the outer wall 33 faces the end of the molding 7 attached to the outer joint of the front hiller 4 with a space therebetween. A gap groove 8 is formed.

A tongue-shaped protrusion 38a extends from the outer wall 33 in an inclined direction, and its outer surface comes into pressure contact with the molding 7, thereby sealing the opening of the gap groove 8.

When the door is closed and the door glass 2 is raised, the sealing wall 32 of the weather strip 3a is pushed toward the hollow portion 35 by the front edge of the door glass 2 and is deformed to wrap around the front edge of the door glass, providing good sealing performance. Demonstrate.

Further, as a result of this deformation, the tip of the protrusion 38a is pushed outward, and the outer surface of the tip is pressed against the molding 7 more strongly.

As the protrusion 38a of the weather strip 3a is pressed against the inner surface of the molding 7, the opening of the gap groove 8 is sealed, preventing air from being sucked out and generation of eddies, thereby preventing wind noise during high-speed driving. It will be done.

According to the experimental results, the noise inside the car at 1100K/h is reduced by 3~5% compared to the conventional weather strip shown in Figure 2.
We were able to reduce this by dB.

Furthermore, the weather strip of the present invention can prevent rainwater, car wash water, etc. from entering, and the protrusion 38
The screws that attach the molding 7, the retainer 5, and the like are hidden by a, thereby improving the appearance.

The weather strip 3b of the second embodiment also has the same effects as those of the above embodiment.

In the case of this embodiment, the protrusion 38b is provided near the base 31, where it is less likely to deform when the door glass is opened or closed, so that it contacts the vehicle body member with almost constant pressure regardless of whether the door glass is opened or closed. .

Further, in the attached state, since the protruding portion 38b is provided facing the direction in which rainwater and the like enter, it is possible to more reliably prevent the intrusion of rainwater and the like.

In the weather strip 3c of the third embodiment, a thin protrusion 38c bulging in a semicircular arc shape always comes into contact with the molding 7 facing the weatherstrip 38c, so that the weatherstrip 3c has the same effect as each of the above embodiments.

When a weather strip is attached to an opening on the side of a vehicle body, if there is a gap groove between the weather strip and the opposing weather strip along the front edge of the opening, wind noise due to suction or dullness at the gap groove is likely to occur.

Therefore, in the present invention, a thin protrusion is formed on the outer surface of the weather strip that is attached to the front edge of the opening so that it is always in pressure contact with the vehicle body member on the front edge of the opening that faces the weather strip by leaving the gap groove. The thin protrusion is easily bent and maintains pressure contact with the vehicle body member regardless of the deformation of the weather strip due to the door glass being pressed against it.

Therefore, the gap groove between the outer surface of the weatherstrip and the opposing vehicle body member is always sealed by the protrusion, which prevents the generation of wind noise caused by suction noise and dullness when the vehicle is running. Ru.

In addition, rainwater, car wash water, etc. are prevented from entering the vehicle body through the gap groove, and the interior of the gap groove is hidden by the protruding portion, which contributes to improving the appearance of the vehicle.

[Brief explanation of drawings]

Figure 1 shows a door glass with a satsuraless structure.
Fig. 2 is a side view of a Todotsubu-type moving vehicle; Fig. 2 is a sectional view of the conventional weatherstrip mounting structure taken along line A-A in Fig. 1;
5 to 5 are sectional views of embodiments of the weather strip according to the present invention, and FIGS. 6 and 7 are A of FIG. 1.
FIG. 6 is a cross-sectional view of the mounting structure of the weather strip of the present invention taken along line A, FIG. 6 showing the state when the door glass is open, and FIG. 7 showing the state when the door glass is closed. 1... Car body side opening, 2... Door glass, 3'... Conventional weather strip, 3a
, 3b, 3e... weather strip of the present invention,
33...Outside wall of weather strip, 38a
, 38b, 38c... protrusion, 4...
・Front pillar, 8... Gap groove between weather strip and vehicle body parts.

Claims (1)

[Scope of utility model registration request] This is an automotive weather strip that is attached to the front edge of a side opening of a vehicle body to seal the front edge with a door glass having a satsure-less structure. On the outer surface of the outer wall facing the vehicle body member at the edge across the gap groove, there is a thin wall integrally projecting in an inclined direction with respect to the outer surface and constantly abutting against the vehicle body member to seal the opening of the gap groove. An automobile weatherstrip characterized by forming a protrusion.