JPH1178536A - Deflector of sunroof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce housing space to be secured for a deflector and to reduce window slop, in adopting a housing-type deflector. SOLUTION: This deflector of a sunroof is provided with an inclined body 41 with a forwardly downward sloped attitude at the front end of a sunroof opening 1 provided to a vehicle; a ventilating hole 42 for passing air current from the front of the inclined body 41 to the rear thereof; and a straightening vane 43 for adjusting the air flow direction extending rearward in continuation with the ventilating hole 42. The attitude of the inclined body 41 is made variable, and the straightening vane 43 is fitted through a leaf spring 44 so as to be relatively displaceable in the approching direction with regard to the inclined body 41 in accordance with the inclined attitude thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sunroof deflector for rectifying airflow over a sunroof opening when a vehicle is running, and more particularly to a sunroof deflector having a slanted body with a variable inclination.

2. Description of the Related Art Conventionally, a sunroof deflector has a main body that is a slant body that is inclined forward and downward at the front end of an opening of a sunroof such as a vehicle. The airflow that hits the slope body rises along the slope of the slope body, and then flows backward while descending while drawing an arc above the opening of the sunroof.

Here, when the vehicle travels at a high speed with the sunroof opened, a phenomenon of a large sound pressure level called a so-called wind throb occurs. This windslob is composed of pulsating noise of several tens of Hz.
The entrainment phenomenon of the airflow near the upper end of the slope body due to the pressure fluctuation of the sunroof opening, specifically, the frequency characteristic of the airflow vortex periodically generated near the upper end of the slope body (hereinafter referred to as “cavity tone”) It is said to be caused.

[0004] Therefore, there is a deflector designed to reduce such windslob. This type of deflector is provided with a ventilation hole for passing an air flow from the front surface to the back surface of the inclined body, and is connected to the ventilation hole. An adjustment plate for adjusting the airflow direction, which extends rearward at a predetermined angle, is attached.

According to the deflector provided with the ventilation holes and the adjusting plate, a part of the airflow hitting the front surface of the inclined body is transferred to the ventilation holes, and the airflow ejected from the ventilation holes on the rear surface is adjusted by the adjusting plate. While the direction is adjusted, the water flows toward the rear end of the sunroof opening. The airflow, the direction of which is adjusted by the adjustment plate, flows while blocking pressure fluctuations between the upper end of the slope body and the sunroof opening, so that the generation of airflow vortices at the upper end of the slope body is suppressed, and the cavity tone is reduced. By preventing occurrence,
The windslob is being reduced.

On the other hand, this type of deflector is generally fixed to a roof panel at the front end of the sunroof opening, but from the viewpoint of aerodynamic characteristics and design, the use of a retractable deflector has been considered. In this case, the inclined body of the deflector can be freely tilted by a retractable mechanism or the like, and is stored in the front end of the opening of the sunroof when stored.

[0007]

However, when the retractable type is applied to the above-mentioned conventional deflector provided with a vent and an adjusting plate, the adjusting plate is connected to the vent and extends rearward from the inclined body. It is necessary to secure a storage space at the front end of the sunroof opening in addition to the storage space for the slant body, in addition to the storage space for the slant body, as a result, the storage space for the deflector becomes large. There was a problem that it had to be secured.

The present invention was conceived in view of the above circumstances, and when a retractable deflector is employed, the storage space to be secured for the deflector is reduced, and the windslob is provided. It is an object of the present invention to provide a sunroof deflector capable of realizing the reduction of the sunroof.

[0009]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

That is, the sunroof deflector provided by the present invention has a slant body inclined downward and forward at the front end of the sunroof provided in the vehicle, and extends from the front to the back of the slant body. A sunroof deflector provided with an airflow passage ventilation hole, and provided with an airflow direction adjustment adjustment plate in a posture extending rearward in connection with the ventilation hole, wherein the inclined body has an inclined posture. It is variable and the adjusting plate is mounted so as to be relatively displaceable in a direction approaching the slope body in accordance with the inclination posture of the slope body.

In the sunroof deflector provided by the present invention in which the above-mentioned technical means are employed, for example, when the deflector is stored at the front end of the sunroof opening, the inclined body is tilted to the inclined front end of the sunroof opening. Is taken along the planar shape of. In other words, the inclined posture of the inclined body is maintained in a substantially horizontal state that is gentler than the normal inclined posture. Then, the adjusting plate is relatively displaced in a direction approaching the slant body in accordance with the inclination posture of the slant body that is in a substantially horizontal state, and as a result, the slant body and the adjusting plate are folded together. Posture. On the other hand, when the inclined body was set to the upright state so as to assume the normal inclined posture, a part of the airflow hitting the front surface of the inclined body was transferred to the ventilation hole and ejected from the ventilation hole on the back surface. The airflow flows to the rear end of the sunroof opening while the direction is adjusted by the adjusting plate. As a result, the airflow whose direction has been adjusted by the adjusting plate flows while blocking pressure fluctuations between the upper end of the slope body and the sunroof opening, and the generation of airflow vortices at the upper end of the slope body is suppressed, and the cavity tone Is also prevented.

Therefore, according to the sunroof deflector provided by the present invention, the occurrence of cavity tones is prevented by the ventilation holes and the adjusting plate, so that the windslob can be reduced. At the time of storage, the slant body and the adjustment plate are in a posture as if they were folded close to each other, so as a storage space for the deflector, a narrow storage space having the space occupied by the folding is provided on the sunroof opening. It is only necessary to secure it at the front end.

Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a schematic overall perspective view showing one embodiment of a sunroof deflector according to the present invention, and FIG.
FIG. 2 is a cross-sectional view of a main part showing a XX cross section shown in FIG.
As shown in these figures, the sunroof opening 1 has a substantially rectangular shape on the upper surface of a roof panel 2 of a vehicle with the vehicle width direction W as a longitudinal direction, and is opened by a slide panel 3 serving as a sunroof main body. -It is formed as an open space that can be closed. Slide panel 3
Is slidable in the short direction V of the sunroof opening 1 via a drive cable or rail (not shown). When the sunroof opening 1 is open, the sunroof opening 1 is located directly below the roof panel 2 at the rear end. In the closed state, the sunroof opening 1 is closed. The deflector 4 rectifies the airflow on the sunroof opening 1 and is provided near the front end of the sunroof opening 1.

The deflector 4 will be described in detail. The deflector 4 includes, as component parts, a slanted body 41 which is raised and stored along a rotation direction D by a retractable mechanism (not shown), and a central part of the slanted body 41. A ventilation hole 42 formed in the vicinity from the front to the back for airflow passage, an airflow direction adjustment adjustment plate 43 connected to the ventilation hole 42 and extending rearward along the traveling direction V, and a slope body There is a leaf spring 44 provided between the rear surface of 41 and the adjustment plate 43.

The inclined body 41 is, for example, a flat plate made of hard resin and formed in an elongated shape along a vehicle width direction W (in FIG. 2, a direction perpendicular to the paper surface, the same applies hereinafter). Are formed in such a size as to fit in the longitudinal direction W of the sunroof opening 1. Also, the base end 4 of the slope body 41
1a is connected to the above-mentioned retractable mechanism (not shown).
1 can be freely changed in inclination. That is, when the slope body 41 is in the upright state, most of the slope body 41 is inclined downward in the forward direction at a position protruding above the roof panel 2 at the front end of the sunroof opening 1, and in a retracted state, The entire slope body 41 is drawn into the storage housing 2a formed immediately below the front end of the sunroof opening 1, and is kept substantially horizontal while being stored below the roof panel 2. The rising and storing operations of the slope body 41 are interlocked with the opening and closing operations of the slide panel 3. When the slide panel 3 opens the sunroof opening 1, the slope body 41 is in the upright state. ,
On the other hand, when the slide panel 3 closes the sunroof opening 1, the inclined body 41 is in the housed state.

The ventilation hole 42 is a through-hole formed in the vehicle width direction W so as to be cut out in the vicinity of the central portion of the slope body 41 and becomes a part of the entire slope body 41. It is formed in such a size. When the inclined body 41 is in the upright state, the lower end of the ventilation hole 42 is located at a position close to the edge 2 b of the roof panel 2, whereby the entire ventilation hole 42 is placed on the roof. It is in a state of appearing above panel 2.

The adjusting plate 43 is, for example, a flat plate made of hard resin and formed in an elongated shape along the vehicle width direction W. The lengthwise direction W of the adjusting plate 43 is substantially the same as the lengthwise direction W of the ventilation hole 42. It is formed so that it becomes. Such an adjustment plate 43
The base end 43a is supported by the rear surface of the slope 42 near the upper end of the ventilation hole 42. When the slope 41 is raised, the adjustment plate 43 is moved to a leaf spring 44 described later.
While being urged downward, it is maintained at a predetermined position and orientation at a predetermined angle with the slope body 41. The adjustment plate 43
The leaf spring 44
A groove 43b is formed so that the tip 44a of the second member can slide freely. On the other hand, when the slant body 41 is stored, the adjustment plate 4
A noise-absorbing rubber 2b is fixed to a part of the storage housing 2a with which the distal end portion 43c of the third housing abuts. Further slope body 41
Is advanced, the tip 44a of the leaf spring 44 slides along the groove 43b while the adjustment plate 4
3 is relatively displaced in a direction approaching the slope body 41. That is, the inclined body 41 and the adjustment plate 43 are in a posture as if they were folded together.

The leaf spring 44 is, for example, a leaf spring made of metal and having an elastic restoring force.
It is mounted so that its function is exhibited when 1 is in an upright state. That is, the leaf spring 4
The base end 44b of the leaf spring 44 is fixed to the rear surface of the inclined body 41, while the distal end 44a of the leaf spring 44 is fixed to the adjusting plate 4 that is relatively displaced when the inclined body 41 is stored.
According to 3, it is a free end that slides while being guided by the groove 43 b of the adjustment plate 43.

Next, the operation of the deflector 4 having the above structure will be described with reference to FIG.

As shown in FIG. 2, when the inclined body 41 of the deflector 4 stands up and the vehicle travels at a high speed with the sunroof opened, a part of the airflow S1 out of the airflow striking the inclined body 41 is vented. Airflow S <b> 2 that has flowed to the air hole 42 and passed through the vent hole 42 is ejected from the rear surface of the slope body 41.

At this time, the flow direction of the airflow S2 is slightly changed downward at the adjustment plate 43 connected behind the ventilation hole 42, and flows into the vehicle interior while grazing the rear end of the sunroof opening 1. The position and orientation of the adjustment plate 43 suitable for adjusting the airflow direction is kept constant by being urged downward by the elastic restoring force of the leaf spring 44.

As a result, the airflow S2 flowing into the passenger compartment is
As a result, the pressure in the vehicle interior is increased, and the negative pressure in the sunroof opening 1 is reduced. This allows
The pressure at the sunroof opening 1 becomes a stable steady state, and the pressure fluctuation is attenuated.

On the other hand, the other airflow S3, which has hit the slope body 41, gradually rises along the slope body 41 and reaches the upper end of the slope body 41. Thereafter, the airflow S4 that has left the upper end of the slope body 41 descends while drawing a large arc above the sunroof opening 1 and hits the roof panel 2 at the rear end of the sunroof opening 1 and flows rearward without flowing into the vehicle interior. It will flow.

Here, the airflow S4 immediately after leaving the upper end of the inclined body 41 generates an airflow vortex S5 due to the entrainment phenomenon caused by the pressure fluctuation of the sunroof opening 1. As a result of the effect of the pressure fluctuation exerted on the upper end portion of the slope body 41 being blocked by the airflow S2, the generation of the airflow vortex S5 is suppressed.

Further, the pressure fluctuation itself at the sunroof opening 1 is stably attenuated by the negative pressure reducing effect of the airflow S2 flowing into the vehicle interior, so that the airflow vortex S5 near the upper end of the inclined surface 41 is reduced. The generation is more effectively suppressed, and the occurrence of the cavity tone is prevented.

On the other hand, when the inclined body 41 is in the housed state,
The inclined posture of the inclined body 41 is kept substantially horizontal, and the adjusting plate 43 is relatively displaced in a direction approaching the inclined body 41 according to the horizontal state of the inclined body 41. That is, the inclined body 41 and the adjusting plate 43 are in a posture as if they were folded together, and the leaf spring 44 is sandwiched between the inclined body 41 and the adjusting plate 43 in a state where the elastic restoring force is released. State.

In this manner, the inclined body 41 and the adjusting plate 43 which are folded as described above are stored in the storage housing 2a having a smaller storage volume than the occupied space in the normal standing state, and The roof 1 is hidden from the roof panel 2 at the front end of the opening 1. Further, in the state of being stored in the storage housing 2a, the tip of the adjustment plate 43 comes into contact with a part of the storage housing 2a. However, since the sound absorbing rubber 2b is disposed at the contact position, the vehicle travels. The generation of the vibration noise accompanying this is prevented.

Therefore, according to the sunroof deflector 4 having the above configuration and operation, the ventilation hole 42 and the adjusting plate 4
3 prevents the occurrence of the cavity tone, thereby reducing the wind throb. Further, when the storage unit is stored, the inclined body 41 and the adjustment plate 43 are folded close to each other. As a storage space for the deflector 4, it is only necessary to secure a storage housing 2 a having a small storage volume having a space occupied by the folding at the front end of the sunroof opening 1.

In the above embodiment, the adjusting plate 43
Is maintained in its position and orientation by the leaf spring 44, but may be mounted so as to be relatively displaceable by an electric mechanism.
Is maintained in such a position that the function is exhibited when the inclined body 41 stands up, and when stored, it is in a state of being relatively displaced in a direction approaching the inclined body 41 and folded. I just need to.

The inclined body 41 can be raised and stored by a retractable mechanism (not shown), but may be manually operated. In this case, the inclined body 41 is independently movable without interlocking with the slide panel 3.

[Brief description of the drawings]

FIG. 1 is a schematic overall perspective view showing one embodiment of a sunroof deflector according to the present invention.

FIG. 2 is a cross-sectional view of a main part showing a XX cross section shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sunroof opening part 4 Deflector 41 Slope body 42 Vent hole 43 Adjusting plate 44 Leaf spring

Claims (1)

[Claims] At a front end of an opening portion of a sunroof provided in a vehicle, the vehicle has a slope body inclined downward and forward, and a ventilation hole for airflow from the front to the back of the slope body. What is claimed is: 1. A sunroof deflector comprising an airflow direction adjusting plate having a posture extending in a rearward direction in connection with a pore, wherein the slant body has a variable tilting posture, and the slanting body has a slanting posture. A deflector for a sunroof, characterized in that the adjusting plate is mounted so as to be relatively displaceable in a direction approaching the inclined body in accordance with the following.