JP2009073342A - Deflector of sunroof and deflector structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deflector reducing wind noise generated secondarily while a vehicle travels, by a deflector disposed at a peripheral edge of a sun roof, and also to provide a deflector structure provided with the deflector. <P>SOLUTION: This deflector is provided with: a housing 4 disposed along a peripheral edge of an opening portion TW of the sun roof SR and having a groove shape having a substantially recessed shape in cross section; and a first deflector 2 which is stored in the housing 4 when closing the sun roof SR, is moved to an upper portion of the opening portion TW from the inside of the housing 4 by interlocking with the opening of the sun roof SR when opening the sun roof SR, and suppresses wind throb noise generated following advancing of the vehicle in the open state. The deflector has a second deflector 3 which is located on a lower portion of the first deflector 2, is journaled in the housing 4 in an upward energized state with the rear end portion as a center, is stored along an inner bottom portion of the housing 4 when closing the sun roof SR, and suppresses wind noise generated around the opening portion TW by rotating upward to diverge from the inner bottom portion 4c of the housing 4 with a shaft as a center when opening the sun roof SR. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a deflector and a deflector structure for suppressing wind slobbing noise and wind noise generated around a sunroof when a vehicle having a sunroof that can be opened and closed is traveling.

A so-called sunroof that is configured to be opened and closed by providing an opening in a roof of a vehicle such as a passenger car and disposing the opening so that a panel-like lid such as a sunroof glass can slide is provided. Vehicles equipped with are widely used. In a vehicle equipped with a sunroof, when the vehicle is driven at a high speed with the sunroof opened, the air flow generated relative to the periphery of the sunroof hits against the rear edge of the sunroof opening. As a result, an unpleasant sound, that is, a wind slob is generated.
In order to suppress this wind sloppy noise, conventionally, a deflector is provided on the periphery of the sunroof, and the air flow that flows around the open sunroof is divided into an upward flow that flows upward from the deflector and a downward direction from the deflector. Consideration is given to avoid the air flow impinging behind the sunroof opening by diverting it into the flowing downward flow.

  As shown in FIG. 4, the conventional deflector 102 for suppressing wind sloving noise is substantially concave in cross section provided at the peripheral portion of the opening 108 of the sun roof 107 on the vehicle front side when the sun roof 107 is closed. When the sunroof 107 is opened, the sunroof 107 is opened in the state where the sliding roof 109 is opened and moved from the housing 104 to above the opening 108 of the sunroof 107. It extends in the vehicle width direction along the front part of the opening part 108 of the sunroof 107, and the cross section is a substantially elliptical pipe-like part that is elongated toward the upper part of the rear part of the vehicle. It has.

  In the deflector 102 for suppressing the wind-slobbing sound having such a configuration, the bottom part of the housing 104 that houses the deflector 102 when the deflector 102 pops up, that is, when the deflector 102 pops up from the stowed state, stands up. It is known that the sound pressure level of the generated wind slobbing sound can be reduced by setting the height H position from the position within a certain range. In particular, when the height H is set within the range of 9 mm to 22 mm, as shown in FIG. 6, the sound pressure level of the wind slob is rapidly reduced as the height position of the deflector 102 is increased. be able to.

  However, when the deflector 102 having such a configuration is used, as the height H of the deflector 102 is increased as shown in FIG. There has been a problem that when the height from the inner bottom portion of the sunroof 107 becomes 9 mm or more and the height H of the sunroof 107 increases rapidly, a sound phenomenon occurs.

As a conventional measure against the secondary problem of generating wind noise generated by the deflector 102 for suppressing the wind slobbing noise, for example, as disclosed in Patent Document 1, the inside of the housing is described. A rectifying plate that develops a rectifying action at the bottom is formed integrally with the housing, and the air flow that is diverted downward by the deflector is changed upward, so that the air flow diverted upward by the deflector is pushed up from below. For this reason, some have been devised to avoid impinging the airflow against the rear edge of the sunroof.
JP 2000-335248 A

  However, in the configuration described in Patent Document 1, since the rectifying plate is formed integrally with the housing, the space between the deflector and the inner bottom portion of the housing is too large, and the air flow that is diverted below the deflector. However, there is a problem in that wind noise is generated because the air flow diverted above the deflector cannot be pushed up from below. Also, the smaller the height from the inner bottom of the housing to the deflector when the sunroof is opened, the more the wind noise tends to be smaller, which is advantageous. Conversely, if the position of the inner bottom portion of the housing is set high while the height position of the deflector is set high when the sunroof is opened, the deflector cannot be stored in the housing when the sunroof is closed. That is, the sound pressure levels of both the wind slob sound and the wind noise cannot be reduced at the same time.

  The present invention has been created in view of the above problems, and an object of the present invention is to provide a deflector that can reduce wind noise associated with high-speed traveling of a vehicle with a sunroof opened. It is another object of the present invention to provide a deflector structure that can suppress the generation of wind slobbing noise and the generation of wind noise.

In order to achieve the above object, the present invention is a deflector that is attached to a housing disposed at the periphery of an opening of a sunroof that can be freely opened and closed, has a plate shape that is long in the vehicle width direction, and is formed at a rear end. It is pivotally supported in the housing in a state of being biased upward through a shaft provided, and is stored along the inner bottom of the housing in the closed state of the sunroof, and is centered on the shaft in the open state of the sunroof. It is characterized by rotating upward so as to deviate from the inner bottom of the housing, thereby suppressing the generation of wind noise around the opening of the sunroof.
It is desirable that the deflector has a downward convex portion formed in a substantially convex shape downward in the cross sectional shape thereof, and is configured so that air flowing over the deflector is directed upward by the downward convex portion.

The deflector structure of the present invention is a housing that is disposed on the periphery of a sunroof that can be opened and closed by a sliding sliding roof of a vehicle, and that has a groove shape with a substantially concave cross section disposed along the periphery of the opening of the sunroof. And a first deflector that is stored in the housing when the sunroof is closed, and moves from the housing to above the opening of the sunroof in conjunction with the sliding opening of the sliding roof. In a deflector structure that suppresses the occurrence of wind slobbing noise that occurs in the vicinity of the sunroof when the vehicle travels, under the first deflector in a state of being biased upward via a shaft provided at the rear end. It is pivotally supported in the housing and is stored along the inner bottom of the housing when the sunroof is closed. In the open state of the sunroof, it has a second deflector that rotates upward so as to deviate from the inner bottom of the housing around the axis, and suppresses the generation of wind noise around the sunroof opening. It is a feature.
The second deflector has a lower convex portion formed in a substantially convex shape downward in its cross-sectional shape, and the first deflector creates air flowing upward on the deflector by the lower convex portion. The upward flow is pushed up from below.

  Here, the wind sloving sound means that when the vehicle is driven at a high speed with the sunroof opened, the air flow generated relative to the periphery of the sunroof is the rear edge of the sunroof opening. An unpleasant sound in a frequency band around 20 Hz, which is generated by hitting a part. In addition, wind noise refers to air flow that relatively flows around the first deflector by positioning the first deflector at the upper and lower parts of the opening surface of the sunroof in the open state of the sunroof. An unpleasant high-frequency sound in a frequency range of 500 Hz or more generated when the current is divided into an upward flow flowing above the deflector and a downward flow flowing below the first deflector.

According to the present invention, a vehicle sunroof comprising a first deflector configured to be openable and closable by a slidable sliding roof and suppressing the generation of wind slobing noise caused by high-speed traveling in the open state. And a sunroof disposed on the inner bottom portion of the housing formed at the periphery of the sunroof for storing the first deflector along the inner bottom portion and positioned below the first deflector. When opening, the height of the first deflector from the inner bottom of the housing can be increased by raising the inner bottom and narrowing the distance from the first deflector. While setting the position to a high position reduces the occurrence of windsrob noise, the second deflector It is possible to reduce the wind noise caused by Ifurekuta.
If the second deflector is thin and detachable, it can be retrofitted to sunroofs that can be opened and closed in a variety of ways without deforming the housing and the first deflector.

  Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings. The deflector structure 1 according to the present embodiment is for suppressing wind slob noise generated around the sunroof SR when the vehicle (not shown) having the sunroof SR that can be freely opened and closed is traveling at a high speed when the sunroof SR is open. The first deflector 2 and the second deflector 3 for suppressing wind noise generated by the first deflector 2 are included. In the drawing, Fr indicates the front side of the vehicle, Up indicates the vertically upper side, and LH indicates the left side in the vehicle width direction.

  However, the wind slob sound here means that when the vehicle is driven at a high speed with the sunroof SR opened, the air flow generated relative to the periphery of the sunroof SR is the opening of the sunroof SR. It is an unpleasant sound in a frequency band around 20 Hz, which is generated due to hitting the rear edge of the part TW. In addition, wind noise refers to an air flow that relatively flows around the first deflector 2 by positioning the first deflector 2 above and below the opening surface of the sunroof SR in the open state of the sunroof SR. This is an annoying high-frequency sound in a frequency range of 500 Hz or higher, which is generated when the current is divided into an upward flow flowing above the first deflector 2 and a downward flow flowing below the first deflector 2.

  As shown in FIG. 1, the sunroof SR according to the present embodiment has an opening TW formed in a substantially square shape at a substantially central portion of the vehicle roof R, and along the front and left and right peripheral edges of the opening TW. A substantially plate-shaped housing 4 that is disposed at a height slightly lower than the opening surface of the opening TW and has a generally U-shape in top view and a generally concave shape in cross section, and Guide sliders GSl and GSr disposed in the housing 4 positioned along the left and right ends of the roof R on both sides so as to be retractable and tilted up, and are slidably attached to the guide sliders GSl and GSr. And a sliding roof SlR that forms a lid plate that opens and closes the opening TW by moving in the vehicle front-rear direction along the guide sliders GSl and GSr.

FIG. 2 is a cross-sectional view around the front end of the sunroof SR in the closed state, and FIG. 3 is a cross-sectional view around the front end of the sunroof SR in the open state.
As shown in FIGS. 2 and 3, the housing 4 has a groove shape in which the cross-sectional shape of the portion extending in the vehicle width direction on the front side thereof is a substantially concave shape, and from the substantially horizontal bottom on the front side thereof. The height position of the upper end of the front vertical portion 4a that rises substantially vertically is relatively high, and the height position of the upper end of the rear vertical portion 4b that rises substantially vertically from the substantially horizontal bottom on the rear side is set relatively low. More specifically, the height of the front vertical portion 4a is set to a height that is approximately twice the height of the rear vertical portion 4b.

  The housing 4 is formed along the shape of the U-shaped housing 4 and is stored in the housing 4 when the sunroof SR is closed. When the sunroof SR is opened, the sliding roof SlR is interlocked with the sliding movement. Then, the first deflector 2 is arranged so that the front part thereof moves from the inside of the housing 4 to the upper side of the opening surface of the opening part TW of the sunroof SR with the rear part having a substantially U-shape as an axis. .

  As shown in FIGS. 1 to 3, the deflector structure 1 according to the present embodiment is provided in a housing 4 formed in a substantially concave groove shape along the front side and the left and right sides of the opening TW of the sunroof SR. A first deflector 2 formed in a substantially U shape as a whole along the shape of the U-shaped sunroof SR, and a second deflector 3 disposed in the vicinity of the substantially horizontal inner bottom portion 4 c on the front side of the housing 4. Prepare.

  The first deflector 2 is configured in substantially the same manner as the conventional deflector 102. Specifically, as a whole, a cylindrical member is formed in a substantially U shape along the shape of the substantially U-shaped sunroof SR, and the front portion has a transverse section that extends elongated toward the upper rear of the vehicle. It has a substantially elliptical shape and is formed in a cylindrical shape elongated in the vehicle width direction along the front portion of the opening TW of the sunroof SR.

  When the sunroof SR is closed, the first deflector 2 is stored in a housing 4 provided at the periphery of the opening TW of the sunroof SR, as shown in FIG. 2, and in the state where the sunroof SR is opened. As shown in FIGS. 1 and 3, a portion extending in the vehicle width direction on the front side of the sliding roof SlR moves upward from the opening surface of the sunroof SR opened from the inside of the housing 4 in conjunction with the sliding opening of the sliding roof SlR. Thus, the first deflector 2 is configured to turn up and stand up, that is, to pop up with the rear portion of the first deflector 2 as an axis.

  The second deflector 3 pivotally supports a plate-like member 3a extending in the vehicle width direction with a substantially constant width slightly wider than the width of the inner bottom portion of the front portion of the housing 4, and a rear end portion of the plate-like member 3a. The mounting member 3b extends in the vehicle width direction and is detachable from the rear vertical portion 4b in the housing 4 and has a substantially semicircular cross section. In the vicinity of the center of the plate-like member 3a in the vehicle front-rear direction, a lower convex portion 3c is formed that is curved in a substantially convex shape downward in its cross-sectional shape.

  The plate-like member 3a and the mounting member 3b constituting the second deflector 3 are pivotally attached to each other via an elastic member (not shown) so as to be urged to rotate, and in the closed state of the sunroof SR, FIG. As shown in FIG. 4, the plate-like member 3a extends along the inner bottom portion 4c of the housing 4 at the inner bottom portion 4c of the front portion of the housing 4 extending in the vehicle width direction at the front portion of the periphery of the sunroof SR, and the rear end portion thereof. It is fixed to the upper end of the rear vertical portion 4b of the housing 4 so as to be urged upward through the mounting member 3b that is elastically attached to the housing.

  In the opened state of the sunroof SR, the second deflector 3 is configured so that the plate-like member 3a is located around the rear end axis of the plate-like member 3a in the second deflector 3 as shown in FIG. Rotating upward so as to deviate from the inner bottom portion 4 c, up to an angular position where the front end of the plate-like member 3 a faces the upper end of the front vertical portion 4 a rising from the front end of the inner bottom portion 4 c in the front portion of the housing 4. It is configured to rotate and tilt.

  When the sunroof SR is opened, the deflector structure 1 according to the present embodiment is a front portion in which the first deflector 2 rises in a pop-up manner and extends in the vehicle width direction in front of the sliding roof SlR. Moves to a position above the opening surface of the opening TW of the sunroof SR. In conjunction with this, the second deflector 3 which is always positioned below the first deflector 2 and is pressed from above by the first deflector 2 is caused by the upward urging force thereof, thereby the second deflector. 3 with the rear end portion of the plate-like member 3a constituting the shaft as an axis so as to be separated from the inner bottom portion 4c of the housing 4. By this rotation, the front end of the plate-like member 3a constituting the second deflector 3 is inclined so as to face the upper end of the front vertical part 4a of the inner bottom part 4c on the front side of the housing 4, and the opening TW of the sunroof SR is formed. It comes into contact with the lower end TWu of the peripheral edge on the front side and stops.

  The height of the lower end portion of the first deflector 2 extending in the vehicle width direction in this state is originally the height H1 from the inner bottom surface on the front side of the housing 4 shown in FIG. The height of the first deflector 2 is substantially extended from the upper surface of the raised second deflector 3 in the vehicle width direction of the first deflector 2 by the second deflector 3 rising so as to be separated. It becomes the height H2 to the lower end part of the part, and is lower than the height H1.

  By configuring the deflector structure 1 of the present embodiment as described above, when the vehicle is traveling at a high speed with the sunroof SR open, as shown in FIG. 3, the windslot is slightly above the opening surface of the sunroof SR. By the first deflector 2 popped up at an optimal height position for reducing the sound pressure level of the noise, the air flow relatively flowing around the sunroof SR flows through the first deflector 2 and above. The upper flow 5 and the lower flow 6 flowing below the first deflector 2 are diverted to suppress the wind slobbing noise, and the lower flow 6 is received by the second deflector 3 rising, and the second deflector 3 The downward flow 6 received by the second deflector 3 flows downstream by a lower convex portion 3c formed at a substantially central portion in the vehicle longitudinal direction of the second deflector 3. Increasing the downflow 6 that, by adding air pressure to push up from below against the upper flow 5, it is possible to suppress the occurrence of wind noise which occurs prior.

By such an action, when the sunroof SR is opened, the first deflector 2 is popped up to an optimum height position at which the sound pressure level of the wind slob sound generated by the opening can be reduced most. Thus, it is possible to suppress wind noise while suppressing wind slob sound. Further, the first deflector 2 can be sufficiently stored in the housing 4 when the sunroof SR is closed.
The deflector structure 1 of the present invention is configured as described above, but can be implemented in various forms without departing from the gist thereof. For example, if the second deflector is configured to be attached to the housing of the sunroof provided with the first deflector, the sunroof provided with the conventional deflector can be retrofitted. Furthermore, the second deflector can be configured to be removable, or the angle can be adjusted by providing an angle adjusting mechanism between the plate-like member and the mounting member.

It is a perspective view of the sunroof periphery provided with the deflector structure of this embodiment. It is sectional drawing of the front end part periphery of a sunroof in a blockade state. It is sectional drawing of the front edge part periphery of a sunroof in an open state. It is sectional drawing of the front end part periphery in the obstruction | occlusion state of the conventional sunroof. It is sectional drawing of the front-end part periphery in the open state of the conventional sunroof. Taking the height to the conventional deflector in the state where it pops up from the inner bottom surface of the housing on the horizontal axis and the sound pressure level on the vertical axis, the wind slob sound suppressed by the conventional deflector set at an appropriate height position It is a graph created by plotting the sound pressure and the sound pressure of wind noise generated by the deflector set at the height position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Deflector structure 2 1st deflector 3 2nd deflector 3a Plate-shaped member 3b Mounting member 3c Bottom convex part 4 Housing 4a Front side vertical part 4b Rear side vertical part 4c Inner bottom part 5 Upstream flow 6 Downstream flow 102 Deflector 104 Housing 107 Sunroof 108 Opening 109 Sliding roof SR Sunroof TW Opening TWu Lower end R Roof SlR Sliding roof GSl, GSr Guide slider

Claims (4)

  A deflector that is attached to a housing disposed at the periphery of an opening of a sunroof that can be freely opened and closed, has a plate shape that is long in the vehicle width direction, and is biased upward via a shaft provided at a rear end. In the closed state, it is pivotally supported in the housing, and is stored along the inner bottom portion of the housing when the sunroof is closed, and is separated from the inner bottom portion of the housing around the shaft when the sunroof is open. The sunroof deflector is characterized in that it is rotated upward to suppress the generation of wind noise around the opening of the sunroof.   2. The sunroof deflector according to claim 1, wherein the sunroof deflector has a downward convex portion that is substantially convex downward in a cross-sectional shape. A housing which is disposed on the periphery of a sunroof that is openable and closable by a sliding sliding roof of the vehicle and has a groove shape with a substantially concave cross section disposed along the periphery of the opening of the sunroof, and the sunroof is closed A first deflector that is stored in the housing and moves from the housing to above the opening of the sunroof in conjunction with the sliding sliding of the sliding roof, and the sunroof is in an open state. In a deflector structure that suppresses the occurrence of wind slobby sound that occurs around the sunroof when the vehicle travels,
The shaft is pivotally supported in the housing below the first deflector while being urged upward via a shaft provided at the rear end, and along the inner bottom of the housing in the closed state of the sunroof. And when the sunroof is in an open state, the sunroof rotates around the shaft so as to deviate from the inner bottom of the housing, thereby suppressing the generation of wind noise around the opening of the sunroof. A sunroof deflector structure characterized by having a deflector.   4. The sunroof deflector structure according to claim 3, wherein the second deflector has a downward projecting portion formed in a substantially convex shape downward in a cross-sectional shape thereof.