JP4548161B2 - Draper flap structure - Google Patents

Description

  The present invention relates to a flap structure of a drafter that ventilates air inside a vehicle to the outside of the vehicle.

  2. Description of the Related Art A flapper flap structure that ventilates a vehicle interior and exterior is known (see, for example, Patent Document 1).

  First, in terms of configuration, the ventilation hole provided in the vehicle body panel for ventilating the inside and outside of the vehicle interior is provided so that the ventilation hole can be opened and closed, and swings at least to the outside of the vehicle. A flap is provided so as to be ventilated from the indoor side to the outdoor side while being spaced apart from the periphery of the hole.

  Next, the operation of this conventional draft flap structure will be described.

In the conventional flap structure of the drafter configured as described above, when the indoor air passes through the ventilation hole when ventilated outside the room, the flap is separated from the peripheral edge of the ventilation hole and the room is opened from the indoor side. Aeration to the outside takes place.
Japanese Utility Model Publication No. 3-121110

  However, in such a conventional flap structure of a drafter, when indoor air is ventilated outside the room, when the flap is separated from the peripheral edge of the ventilation hole and comes into contact again, a hitting sound is generated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a flapper flap structure that can suppress the generation level of a hitting sound to be low.

The present invention has been made in view of the above circumstances, and is provided with a ventilation hole that ventilates the interior and exterior of the vehicle, and the ventilation hole that can be opened and closed, and swinging at least outside the vehicle, A flap structure of a drafter having a flap that is spaced from the periphery of the ventilation hole and allows ventilation from the indoor side to the outdoor side, wherein the flap is positioned on the vehicle interior side and the first flap located on the vehicle outer side. And a second flap made of a soft material capable of suppressing the hitting sound of the first flap, and the second flap is formed with a vent opening , and the first flap However, when returning to the closed state and coming into contact with the periphery of the ventilation hole, the second flap is characterized by a flap structure of the contact that is in contact with the periphery of the ventilation hole .

  According to the present invention, when ventilation from the indoor side to the outdoor side is performed, the first flap is separated from the peripheral edge of the ventilation hole, and ventilation is performed through the ventilation opening of the second flap.

Since the second flap located outside the passenger compartment is interposed between the first flap and the periphery of the ventilation hole, the first flap returns to the closed state and comes into contact with the periphery of the ventilation hole. The second flap made of a soft material is brought into contact with the peripheral edge of the ventilation hole .
For this reason, the generation level of the generated hitting sound can be kept low.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the flap flap structure of this embodiment, a drafter 3 for ventilating the inside and outside of a vehicle is provided by being attached to a draft opening 2a formed in a part of a vehicle body panel 2 of the vehicle 1.

  FIGS. 1 to 3 and FIG. 8 show the flap structure of the drafter according to the first embodiment of the present invention.

  First, in terms of configuration, in the first embodiment of the drafter 3, a drafter housing member 5 is fitted to the periphery of the drafter opening 2 a formed in the vehicle body panel 2 via a seal member 4.

  The draft housing member 5 has a substantially rectangular shape when viewed from the front, and a seal groove portion 5a for mounting the seal member 4 on the periphery is formed over the entire circumference with the vehicle interior side open. Further, the above-mentioned draft housing member 5 is arranged side by side in the vehicle downward direction, has a horizontally long rectangular shape, and serves as a ventilation hole for ventilating the inside and outside from the indoor side 1a to the outdoor side 1b. , 7 are formed as a pair.

  In addition, first flaps 8 and 8 and second flaps 9 as flaps provided on the peripheral edges of the lower ventilation holes 6 and 7 so as to allow the upper and lower ventilation holes 6 and 7 to be opened and closed. , 9 are provided.

  Among these, the first flaps 8 and 8 are made of an elastically deformable rubber material, and are located on the vehicle exterior side as shown in FIG. 2, and the upper edge portions 8a and 8a are the upper and lower ventilations. It is fixed to the upper edge portions 6a and 7a of the holes 6 and 7 so as to be swingable and swings at least on the vehicle exterior side, thereby separating from the peripheral edge of the ventilation holes 6 and 7 and from the indoor side to the outdoor side. It is set as the structure which ventilates to.

  The second flaps 9, 9 are made of non-woven fabric, and a fixing tool such as a trough member (not shown) is used in the three fixing holes 9d provided in the vicinity of the upper edge 9a. Along with the 1 flaps 8 and 8, the upper edge portions 6 a and 7 a are respectively fixed to the periphery.

  And this 2nd flap 9 is located in the vehicle interior side rather than the said 1st flaps 8 and 8, between the said 1st flaps 8 and 8 and the peripheral part of the said upper and lower ventilation holes 6 and 7. When the first flaps 8, 8 return to the closed state and are brought into contact with the peripheral edges of the upper and lower ventilation holes 6, 7, the first flaps 8, 8 are placed on the peripheral edges of the upper and lower ventilation holes 6, 7. The second flap 9 is configured to abut while being interposed.

  Furthermore, as shown in FIG. 3, the second flaps 9 and 9 have long hole-shaped lateral openings 9c and 9c having a longitudinal direction along the swinging tip side edges 9b and 9b as ventilation openings, as shown in FIG. Is formed.

  Next, the operation of the flap structure of the first embodiment will be described.

  In the flap flap structure of the first embodiment, when the ventilation from the indoor side 1a to the outdoor side 1b is performed, the first flaps 8 and 8 are separated from the peripheral edges of the upper and lower ventilation holes 6 and 7, respectively. Ventilation is performed through the lateral openings 9c, 9c of the second flaps 9, 9.

  Since the second flap 9 located outside the passenger compartment is interposed between the first flap 8 and the peripheral edges of the upper and lower ventilation holes 6, 7, the first flaps 8, 8 are again in the opposite direction. When the upper and lower ventilation holes 6 and 7 are closed by swinging, they are brought into contact with the peripheral edges of the upper and lower ventilation holes 6 and 7 via the second flaps 9 and 9.

  For this reason, the generation level of the generated hitting sound can be kept low.

  4 to 6 show the flap structure of the drafter according to Example 2 of the embodiment of the present invention.

  The same or equivalent parts as in the first embodiment will be described with the same reference numerals.

  First, the differences in configuration will be mainly described. In the case of the drafter 13 according to the second embodiment, the upper ventilation holes 6 and 7 of the drafter housing member 15 that supports the second flaps 9 and 9 are provided in the lower ventilation holes 6 and 7, respectively. Triangular rib portions 16, 16 and 17, 17 are integrally formed as a pair of rib portions that are supported by the two flap members 9, 9.

  Next, the operation of the flap structure of the drafter according to the second embodiment will be described.

  In the draft flap structure of the second embodiment configured as described above, in addition to the function and effect of the first embodiment, the upper and lower ventilation holes 6 and 7 of the draft housing member 15 are integrally formed. The second flap members 9 and 9 are in contact with the end faces of the triangular rib portions 16, 16 and 17, 17 and are supported while maintaining a substantially planar shape.

  Thus, as shown in FIG. 5, when the upper and lower ventilation holes 6 and 7 are closed, the second flap members 9 and 9 are not displaced in the X direction in the figure. When 8 and 8 return to the closed state, the second flap 9 is generated between the peripheral edges of the upper and lower ventilation holes 6 and 7 and the first flaps 8 and 8. The generation level of the hitting sound can be kept low.

  In the second embodiment, since the triangular rib portions 16, 16, and 17, 17 are provided along the longitudinal direction in the vehicle vertical direction, the lateral openings 9c of the second flaps 9, 9 are provided. The area overlapping with 9c can be set small.

  For this reason, when ventilation is performed via the lateral openings 9c, 9c of the second flaps 9, 9, increase in ventilation resistance is suppressed.

  Other configurations and operational effects are the same as or equivalent to the flap structure of the drafter according to the first embodiment, and thus the description thereof is omitted.

  FIG. 7 shows the flap structure of the drafter of Example 3 of the embodiment of the present invention.

  Parts that are the same as or equivalent to those in the second embodiment will be described with the same reference numerals.

  First, the differences in configuration will be mainly described. In the third embodiment, three vertical openings 29c are formed on the second flap 29 from the upper edge portion 29a toward the swinging tip side edge 29b. The openings are formed at regular intervals.

  Next, the operation of the flap structure of the drafter according to the third embodiment will be described.

  In the draft flap structure of the third embodiment configured as described above, when the ventilation from the indoor side 1a to the outdoor side 1b is performed, the first flaps 8 and 8 are formed in the upper and lower ventilation holes 6 and 7, respectively. Ventilation is performed through the vertical openings 29c and 29c of the second flaps 29 and 29 while being separated from the peripheral edge.

  FIG. 8 is a graph showing the relationship between the air volume and the ventilation resistance.

  The value indicated by the two-dot chain line c to be compared is that the flaps provided so that the upper and lower ventilation holes 6 and the like can be opened and closed are composed of two first flaps 8 and second flaps 9, and The increase in the airflow resistance of the drafter having the shape in which the airflow opening is not formed in the second flap 9 is shown.

  In addition, the value indicated by the alternate long and short dash line b in the figure is configured such that the flaps provided so that the upper and lower ventilation holes 6 and the like can be opened and closed are composed of two first flaps 8 and second flaps 29, In addition, the second flap 29 has an increase in ventilation resistance of a drafter in which vertical openings 29c and 29c are formed as ventilation openings.

  Furthermore, the value indicated by the solid line a in the figure is that the flaps provided so that the upper and lower ventilation holes 6 can be opened and closed are composed of two first flaps 8 and second flaps 9, and The increase in the airflow resistance of a drafter having a shape in which a lateral opening 9c is formed as a ventilation opening in the second flap 9 is shown.

  Comparing the increase in the ventilation resistance of each of these shapes, the second flap 9 having a shape in which the lateral opening 9c is formed as the ventilation opening, rather than the shape in which the vertical opening 29c, 29c is formed as the ventilation opening. It can be seen that the air flow resistance is less because the long hole shape having the longitudinal direction is formed along the swinging tip side edge 9b.

  Other configurations and functions and effects are the same as or equivalent to the flap structure of the drafter according to the first and second embodiments, and thus the description thereof is omitted.

  As described above, the embodiment of the present invention and each of Examples 1, 2, and 3 have been described in detail with reference to the drawings. The specific configuration is the same as that of this embodiment and each of Examples 1, 2, and 3. However, the present invention includes design changes that do not depart from the gist of the present invention.

  That is, in the flap structure of the drafter of Example 1 of the above embodiment, the second flaps 9 and 9 are made of non-woven fabric. However, the present invention is not limited to this, for example, other cloth materials, etc. Any material may be used as long as it is made of a soft material capable of suppressing the hitting sound of one flap 8, and the quantity and material are not particularly limited together with the shape of the ventilation opening.

It is a perspective view explaining the whole structure by the flap structure of the drafter of Example 1 of an embodiment of the invention. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 in the flap structure of the drafter according to the first embodiment of the present invention. It is a top view which shows an example of a 2nd flap with the flap structure of the drafter of Example 1 of an embodiment of the invention. It is a perspective view explaining the whole structure by the flap structure of the drafter of Example 2 of an embodiment of the invention. It is the perspective view which looked at the flap housing structure of the example 2 of the embodiment of the present invention from the vehicle interior side of the lid housing member provided with the rib part. FIG. 5 is a cross-sectional view at the position along the line BB in FIG. 4 in the flap structure of the drafter of Example 2 of the embodiment of the present invention. It is a top view explaining the structure of a 2nd flap by the flap structure of the drafter of Example 3 of an embodiment of the invention. It is a graph which shows the relationship between an air volume and ventilation resistance.

Explanation of symbols

1a Indoor side 1b Outdoor side 3,13 Draft 5,15 Draft housing member 6 Upper ventilation hole (ventilation hole)
7 Lower ventilation hole (ventilation hole)
8 First flap (flap)
9, 29 Second flap (flap)
9c, 9c Lateral opening (ventilation opening)
29c Vertical opening (ventilation opening)
16, 17 Triangular rib (rib)

Claims (4)

A ventilation hole that ventilates the interior and exterior of the vehicle interior, and the ventilation hole can be opened and closed. A flap structure of a drafter having a flap for ventilating,
Said flap comprising a first flap located on the vehicle exterior side, with in position inside the vehicle compartment, and a second flap consisting of soft material member capable of suppressing the striking sound of the first flap configured, The second flap has a vent opening, and when the first flap returns to the closed state and comes into contact with the periphery of the ventilation hole, the second flap is interposed at the periphery of the ventilation hole. Draper flap structure characterized in that it abuts while being pressed.   The draft flap structure according to claim 1, wherein the vent opening is a long hole-shaped lateral opening portion having a longitudinal direction along a side edge of the swing flap side of the second flap. 3. The flap structure of a drafter according to claim 1, wherein the first flap is made of a rubber material, and the soft material of the second flap is made of a nonwoven fabric.   The rib housing member, in which the ventilation hole is opened and the second flap is mounted, is integrally formed with a rib portion that supports the second flap member. Item 4. The flap structure of the drafter according to any one of Items 1 to 3.

Images