JPH02193715A - Sunroof structure for automobile - Google Patents

Abstract

PURPOSE:To prevent occurrence of wind slop by installing an air dam made of an elastic material on the front edge of a sunroof. CONSTITUTION:A roof opening portion 2 is made to be opened or closed with a sunroof 3, and a deflector 4 is inclinably installed at the front edge of the opening portion 2 to lead a current of air to above the opening portion 2 as an automobile is running. A sunshade 5 and a roof trim 6 are installed in parallel under the sunroof 3. A rectangular air dam 7 is bendably hinged to the front edge of the sunroof 3 via a hinge member, and the height of the air dam 7 is such that it covers the front edges of the sunshade 5 and trim 6 when the sunroof 3 is fully opened. This arrangement causes part of an air current that passed over the deflector 4 to strike the air dam 7 and move upward when the sunroof 3 is fully opened, thereby preventing occurrence of wind slop. When the sunroof 3 is fully closed, the deflector 4 collapses and is enclosed with the air dam 7 resting on it.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sunroof structure for an automobile, and more particularly to a sunroof structure for an automobile that minimizes the influence of windslop that occurs when driving with the sunroof fully open. .

[Conventional technology]

2. Description of the Related Art Sunroof vehicles are widely used in which a roof opening is provided in a portion of a roof panel and the opening is opened and closed by a sunroof. When such a sunroof vehicle is driven with the sunroof fully open, a wind slop phenomenon occurs due to the flow of air above the roof panel, giving a harsh and unpleasant sensation to the occupants. Therefore, a deflector is provided at the front edge of the opening in order to prevent unpleasant air vibrations in the room when driving with the sunroof fully open and to increase the ventilation effect (see Japanese Utility Model Application No. 63-9033).

[Problem to be solved by the invention]

However, in conventional sunroof vehicles equipped with only a deflector, the airflow that passes through the deflector hits the trailing edge of the roof opening and generates an edge tone, which becomes an excitation source and causes Helmholtz resonance.
There is a problem in that it causes so-called windslop, which makes passengers feel uncomfortable.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sunroof structure for an automobile that prevents windslop from occurring when the vehicle is driven with the sunroof fully open.

[Means to solve the problem]

In order to achieve the above object, the present invention provides an automobile sunroof structure in which a roof opening formed in a part of a roof panel is opened and closed by a sunroof, and in which an air dam made of an elastic material is provided at the front edge of the sunroof. An automobile sunroof structure is characterized in that it is equipped with a.

[For production]

According to the present invention, since the air dam hangs down from the front end of the sunroof when it is fully open, most of the airflow while driving flows above the ruler opening, and some airflow hits the air dam downward. No vortices or edge tones are generated, and windslop can be prevented.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automobile sunroof structure according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a part of a sunroof vehicle, in which a roof opening 2 is formed in front of a roof panel 1. The roof opening 2 can be opened and closed by a sunroof 3, and the sunroof 3 can slide back and forth inside the roof panel 1 along a guide groove (not shown).

A deflector 4 is tiltably attached to the front edge of the roof opening 2. This deflector 4 guides airflow above the roof opening 2 when driving.
Even without defragmentation, the airflow rises along the windshield, so most of the airflow is directed above the roof opening.

Further, a sunshade 5 is provided below the sunroof 3, and a roof trim 6 is arranged substantially in parallel below the sunroof 3 with an appropriate gap. Margin pads la, 5a, 6a are provided at the opening edges of the roof panel 1, sunshade 5, and roof trim 6.
is installed.

Further, according to the present invention, an elongated air dam 7 is bendably hinged to the front edge of the sunroof 3 via a hinge member 8. Instead of the hinge member 8, a V-groove may be provided in the longitudinal direction of the air dam, and the air dam may be bent at this groove. It is preferable that the air dam 7 is made of rubber or other elastic material. As is clear from FIGS. 2 and 3, the height of the air dam 7 is desirably set to a size that can cover the front end of the sunshade 5 and the roof trim 7 from the front when the sunroof is fully opened. This can prevent edge tones from occurring.

Since the embodiment of the present invention is configured as described above, when the automobile is driven with the sunroof 3 fully open,
A part of the airflow that has passed through the deflector 4 hits the air dam 7 and rises, but windslop can be prevented without producing edge tones as in the conventional case.

Furthermore, when driving with the sunroof 3 fully closed, the deflector 4 falls down and the air dam 7 bends at the hinge member 8 when the sunroof 3 is brought to the fully closed position, as shown in FIG. The deflector 4 rides on the deflector 4 and is stored.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, since the air dam is provided at the front end of the sunroof, windslop can be reduced without generating edge tone near the rear edge of the sunroof opening.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an automobile sunroof structure according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line B-B in FIG. 1, and FIG. 3 is a cross-sectional view taken along line C--B in FIG. FIG. 4 is a cross-sectional view taken along line C, FIG. 4 is a vertical cross-sectional view showing the sunroof in a fully open state, and FIG. 5 is a vertical cross-sectional view showing the sunroof in a fully open state. 1... Roof panel, 2... Roof opening, 3...
・Sunroof, 7... Air dam, 8... Hinge member. Applicant's agent Sato - Yumei 2 figures 3 figures traps 5 figures

Claims (1)

[Claims] An automobile sunroof structure in which a roof opening formed in a part of a roof panel is opened and closed by a sunroof, characterized in that an air dam made of an elastic material is attached to the front edge of the sunroof. .