JPH10250362A - Air filtering device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply execute the mounting work and the exchange work of a filter by a user by detechably fitting a filter provided so as to cover an air blow-off port arranged in a cabin of an automobile to the air blow-off port. SOLUTION: Between an upper wall 2a and a lower wall 2b on the end part on the air blow-off port B side of a cylindrical housing 2 surrounding an air blow-off port provided on an instrument panel, a fixing part 3 having two extended parts 3a, 3a along the axial direction of the housing 2 and made of synthetic resin is detachably constructed in a stretched state. Namely is fixing part 3 is fitted by locking claws 3b provided on the respective extended parts 3a with fins F while elasticity deforming them. A filter 4 consistuted by overlapping a deodorizing activated carbon filter part 4A and an unwoven fabric filter part 4B laminating unwoven fabrics for removing dust pleat-like- soldingly, is fixed to the hollow part of such housing 2, utilizing elastic force for itself.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air filter for an automobile used for filtering the outside air blown from an air outlet disposed in the interior of an automobile.

[0002]

2. Description of the Related Art Air in a vehicle cabin is purified by a circulating air purifying device such as an electrostatic air purifying device or a filtration air purifying device. Due to the growing interest in substances such as nitrogen and nitrogen oxides, there has been a growing demand to purify air outside the cabin that is introduced through air outlets arranged in the cabin. Measures have been taken to incorporate filters having various functions, such as a dust filter and a deodorizing filter, into the flow path of an automotive air conditioner.

[0003] The above-mentioned air purification technology for the interior of a vehicle cabin is described in the Automotive Technology Handbook, Design Edition, June 199, 1992, first edition, second edition, pages 421-422.

[0004]

However, in order to incorporate a filter into the flow path of an air conditioner for an automobile as described above, it is necessary for the air conditioner for an automobile to have a specification capable of incorporating a filter. Both the work of installing and replacing the filter in the automotive air conditioner is not easy, and in most cases these work must be entrusted to a specialist such as a car mechanic. Has been a conventional problem.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems. In filtering air outside the vehicle compartment introduced through an air outlet through a filter, most of the air outlet is provided regardless of a difference in specifications. It is an object of the present invention to provide a vehicle air filtration device that can be attached to a mouth and, in addition, allows a user of a vehicle to easily perform a filter mounting operation and a filter replacing operation.

[0006]

According to a first aspect of the present invention, there is provided an air filtering apparatus for a vehicle, comprising a filter for covering an air outlet disposed in a vehicle interior of the vehicle, and an air outlet of the filter in the vehicle interior. It is characterized in that it is configured to be attachable to and detachable from the vehicle, and the configuration of the automotive air filtration device is a means for solving the conventional problems.

According to a second aspect of the present invention, there is provided an air filtering apparatus for a vehicle, wherein the housing has a cylindrical shape mounted on an air outlet disposed in a vehicle cabin, and is mounted on the housing to cover the air outlet. A filter is provided, and at least one of the housing and the filter is configured to be detachable in the vehicle interior. The configuration of the air filtering apparatus for an automobile solves the above-mentioned conventional problems. Means.

According to a third aspect of the present invention, there is provided an air filtering apparatus for a vehicle, wherein a fixed portion to the air outlet is detachably mounted on the housing, and the filter is held between the housing or the housing and the fixed portion. Configuration.

According to a fourth aspect of the present invention, there is provided an air filtering apparatus for an automobile, comprising a wind direction control means.
The wind direction control means is a honeycomb board which is positioned closer to the vehicle interior than the filter and is rotatably supported by the housing via at least one of a substantially vertical axis and a substantially horizontal axis. In the automotive air filtration device according to claim 6 of the present invention, the honeycomb board is arranged so that the honeycomb board is rotated about at least one of an axis in a substantially vertical direction and an axis in a substantially horizontal direction from a position along an end surface of the housing. In the automotive air filtering apparatus according to claim 7, the cell pitch of the honeycomb board is 0.3 mm or more and 20 mm or less.
mm or less and the thickness is 2 mm or more and 30 mm or less. In the air filtering apparatus for an automobile according to claim 8 of the present invention, the honeycomb board has a deodorizing function.

According to a ninth aspect of the present invention, the end face of the housing is set to face an occupant, and a state along the end face of the housing is set to a neutral state of the honeycomb board. The vehicle air filtration device according to claim 10, wherein the state along the end face of the housing set toward the rear in the vehicle interior is a neutral state of the honeycomb board, and the direction of blowing air passing through the honeycomb board in the neutral state is to the occupant. It has a configuration in which the axis of the cell of the honeycomb board is inclined so as to aim.

[0011] In the air filtering apparatus for a vehicle according to the eleventh aspect of the present invention, the housing has at least one of a substantially vertical axis and a substantially horizontal axis attached to the fixing portion to the air outlet. It is configured to be rotatably supported via

In the automotive air filtration apparatus according to the present invention, the filter can be easily replaced and the degree of contamination can be easily checked. In addition, in order to prevent damage to the device mounting portion on the air outlet side when replacing the filter, It is desirable to adopt the configuration of claim 3.

[0013] Further, in the automotive air filtration device according to the present invention, the type of the filter is not particularly limited.
As a filter having a dust removing function, a commercially available dust removing filter can be used, and a nonwoven fabric, a woven fabric, or paper such as a tissue paper can be used.On the other hand, a commercially available granular activated carbon or activated carbon can be used as a filter having a deodorizing function. It is desirable to use an activated carbon-based material such as a sheet in which activated carbon powder is adhered to a fiber or a non-woven fabric.In order to remove more types of odors, it is preferable to use impregnated activated carbon,
It is also possible to use inorganic materials such as zeolites and metal oxides, surfactants, or plant extract components in appropriate combinations.

Further, it is conceivable to employ a movable louver in which fins are arranged vertically and horizontally as a wind direction control means of the air filtering apparatus for a vehicle according to claim 4 of the present invention.
If the existing movable louver is used as it is, the overall thickness of the device increases, the appearance and design may be impaired, and the operability of peripheral switches may be adversely affected. The use of a movable louver having a reduced overall thickness increases the number of parts and complicates the assembly, but the effect of reducing the thickness of the entire apparatus is not good, so that the vehicle according to claim 5 is used. It is desirable to adopt a honeycomb board having a rectifying function as a wind direction control means like an air filtration device.

In this case, for the honeycomb board, a structure obtained by bonding a resin film or a metal foil to a paper, a nonwoven fabric, or a composite material obtained by impregnating the same with a resin is used. Alternatively, a molded article of ceramics is used. Further, as in the air filtration device for an automobile according to claim 8, activated carbon is attached to an extruded molded article of activated carbon powder or the above-mentioned structure and molded article to have a deodorizing function. It is possible to use one.

When the honeycomb board is used, considering the air volume of the air conditioner for an automobile,
When the cell pitch of the honeycomb board is smaller than 0.3 mm, the airflow resistance increases and the air volume decreases significantly. When the cell pitch is larger than 20 mm, a sufficient rectifying effect cannot be obtained. On the other hand, if the thickness of the honeycomb board is smaller than 2 mm, a rectifying effect cannot be obtained. If the thickness is larger than 30 mm, the thickness of the entire device increases as in the case where the existing movable louver is used as it is, and the external appearance design is improved. In the automotive air filtration device according to claim 7, the cell pitch of the honeycomb board is set to 0.3 mm or more and 20 mm or less, and the thickness is set to 2 mm or more and 30 mm or less, since it may adversely affect the performance and the operability of the peripheral switches. .

Furthermore, in the air filtering apparatus for an automobile according to claim 5 of the present invention, the honeycomb board is rotated around the housing via at least one of a substantially vertical axis and a substantially horizontal axis. Although it is designed to be movably supported, when importance is placed on simplification of the structure and reduction in the thickness of the entire device, only at least one of the substantially vertical axis and the substantially horizontal axis is used. In the case where the honeycomb board is supported by the above, and the wind direction is finely adjusted and the usability is improved, the honeycomb board is supported by both the substantially vertical axis and the substantially horizontal axis. It is desirable that the number of shafts can be appropriately selected in consideration of constraints such as the thickness of the device,
At this time, the control of the wind direction is performed by fixing the honeycomb board as in the automobile air filtration device according to claim 11 or by mounting the housing supporting the honeycomb board on one axis substantially vertically to the fixing portion to the air outlet. It is also possible to make it rotatably supported via at least one of the direction axis and the substantially horizontal direction axis.

Further, as described above, one axis or two axes
Although it is desirable to increase the rotation range of the honeycomb board supported by the shaft in order to increase the degree of freedom of wind direction adjustment,
If the position exceeds ± 30 ° from a position (neutral position) along the end face of the housing, the entire device becomes too thick. Therefore, in the automotive air filtration device according to claim 6, the rotation range of the honeycomb board is set to the neutral position. And ± 30 ° around at least one of the substantially vertical axis and the substantially horizontal axis.

Furthermore, in the air filtering apparatus for a vehicle according to the present invention, in order to reduce the rotation range of the honeycomb board without reducing the degree of freedom of wind direction adjustment,
In order to further reduce the thickness of the entire apparatus without reducing the degree of freedom of wind direction adjustment, the end face of the housing in the automotive air filtration apparatus according to claim 9 is set to face an occupant, and the state is along the end face of the housing. A honeycomb board in a neutral state, and a state along an end face of a housing set rearward in a vehicle cabin in the automotive air filtration device according to claim 10, wherein the honeycomb board is in a neutral state. One of the configurations in which the axis of the cells of the honeycomb board is inclined, or a combination of both, is adopted in order to direct the blowing direction of the air passing through the board toward the occupant.

[0020]

According to the first aspect of the present invention, the air filtering apparatus for a vehicle has the above-described structure.
In addition to being attached to most of the air outlets regardless of the difference in the specifications of the air outlets, the operation of mounting the filter on the air outlet and exchanging the filter can be easily performed by the user of the vehicle in the vehicle interior.

Since the air filtering apparatus for a vehicle according to the third aspect of the present invention has the above-described structure, when the filter is replaced and the degree of dirt is checked, the apparatus mounting portion on the air outlet side may be damaged. Will be avoided.

In the vehicle air filtering apparatus according to the fourth aspect of the present invention, the wind direction control function is maintained to the same extent as when the vehicle air filtering apparatus is not mounted on the air outlet. In the automobile air filtration device according to claim 5, since the above configuration is adopted, the wind direction is controlled without impairing the appearance design or adversely affecting the operability of the peripheral switches,
When the honeycomb board is supported by only one of the axis in the substantially vertical direction and the axis in the substantially horizontal direction, the structure is simplified and the thickness of the entire apparatus is reduced. When the honeycomb board is supported by both of the axis and the substantially horizontal axis, fine adjustment of the wind direction can be performed.

In the air filtering apparatus for a vehicle according to claim 6 of the present invention, since the above configuration is adopted, the thickness of the entire apparatus is prevented while the degree of freedom in adjusting the wind direction is kept large. In the air filtering apparatus for a vehicle according to claim 7 of the present invention, when the air volume of the air conditioner for a vehicle is taken into consideration, the reduction of the air volume is suppressed, the appearance design is impaired, and the operability of peripheral switches is adversely affected. Therefore, the rectifying effect can be sufficiently exerted without exerting any influence on the vehicle, and in the vehicle air filtering device according to the eighth aspect of the present invention, it is not necessary to separately provide a filter having a deodorizing function. The labor of the operation is saved, and the thickness of the device is reduced.

In the vehicle air filtration device according to the ninth and tenth aspects of the present invention, since the above configuration is adopted, the overall thickness of the device can be further reduced without reducing the degree of freedom in adjusting the wind direction. Become.

[0025] In the air filtering apparatus for a vehicle according to the eleventh aspect of the present invention, since the above configuration is adopted, when the housing is supported by a single shaft, the structure is simplified and the entire apparatus is made thin. When the housing is supported by two axes, fine adjustment of the wind direction can be performed.

[0026]

According to the air filtering apparatus for a vehicle according to the first and second aspects of the present invention, since the above-described configuration is employed, a filter can be attached to most of the existing air outlets. Since the user of the vehicle can easily install and replace the filter in the vehicle interior, an extremely excellent effect that the outside air introduced into the vehicle interior can be easily purified can be obtained.

According to the third aspect of the present invention, the air filtering apparatus for a vehicle has the above-described structure, so that the same effects as those of the air filtering apparatus for a vehicle according to the first and second aspects can be obtained, and further, the air blowing is provided. This provides an extremely excellent effect that the filter can be replaced and the degree of contamination can be checked without damaging the mouth-side device mounting portion (for example, the existing fin).

According to the air filtering apparatus for a vehicle according to the fourth aspect of the present invention, the outside air can be easily purified without impairing the wind direction control function of the existing air outlet. The air filtering apparatus for automobiles according to Item 5 has the above-described configuration, so that it is possible to control the wind direction without impairing the design of the appearance or adversely affecting the operability of the peripheral switches, and in a substantially vertical direction. When the honeycomb board is supported by only one of the axis and the substantially horizontal axis, the structure can be simplified and the entire device can be thinned, while the substantially vertical direction can be realized. When the honeycomb board is supported on both the axis and the substantially horizontal axis, an extremely excellent effect that fine adjustment of the wind direction can be performed is brought about.

In the air filtering apparatus for a vehicle according to the sixth aspect of the present invention, since the above configuration is adopted, the thickness of the entire apparatus can be reduced while maintaining a high degree of freedom in adjusting the wind direction. The air filter for automobiles related to the above can reduce the air flow of the air conditioner for automobiles to a low level, and perform sufficient rectification without impairing the appearance and operability of peripheral switches. According to the air filtering apparatus for an automobile according to claim 8 of the present invention, it is not necessary to separately provide a filter having a deodorizing function, so that the labor for assembling work can be saved by that much, and the thickness of the apparatus can be reduced. An extremely excellent effect that can be realized is brought about.

According to the air filtering device for automobiles according to the ninth and tenth aspects of the present invention, since the above-described configuration is employed, it is possible to further reduce the thickness of the entire device without reducing the degree of freedom in adjusting the wind direction. In the vehicle air filtration device according to claim 11 of the present invention, since the above configuration is adopted, when the housing is supported by one shaft,
The structure can be simplified, the entire device can be made thinner, and when the housing is supported by two axes, it is possible to finely adjust the wind direction. The effect is brought.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of an air filtering apparatus for a vehicle according to the present invention.

As shown in FIG. 1, the vehicle air filtering apparatus 1 has a cylindrical housing 2 surrounding an air outlet B provided in an instrument panel, and an air filter provided in a hollow portion of the housing 2. A filter 4 for covering the outlet B and a honeycomb board 5 provided at an end of the housing 2 as wind direction control means are provided. The upper and lower walls 2a, 2b at the end of the housing 2 on the side of the air outlet B are provided.
As shown in FIG. 3, a fixing portion 3 made of synthetic resin is detachably provided in a stretched state therebetween. The fixing portion 3 is formed along the axial direction of the housing 2 (the left-right direction in FIG. 1).
The housing 2 has a plurality of extending portions 3a, 3a.
Is pushed between the fins F provided in the air outlet B while elastically deforming the extending portions 3a of the fixed portion 3 in a direction approaching each other, and each tip of the extending portions 3a, 3a The hooks 3b, 3b provided on the fins F, F are respectively engaged with the fins F, F so as to be mounted on the air outlet B, and between the peripheral edge Ba of the air outlet B and the end face of the housing 2. Is provided with an unillustrated cushioning material (for example, urethane foam) for preventing air leakage and rattling.

The filter 4 is formed by laminating an activated carbon filter portion 4A for deodorizing and a nonwoven fabric filter portion 4B obtained by laminating a nonwoven fabric for dust removal in a fold, and utilizes the elastic force of itself. The housing 2 is fixed to a hollow portion of the housing 2 and positioning is performed by a rib 2c provided in the hollow portion.

On the other hand, as shown in FIG. 2, the honeycomb board 5 is fixed to the end of the housing 2 on the vehicle interior side by a fitting method, and has a cell pitch of 0.3 mm to 20 mm.
The thickness is 2 mm or more and 30 mm or less.

In this air filtering device 1 for an automobile, the extending portions 3a, 3a of the fixing portion 3 are elastically deformed in a direction of approaching each other, and are pushed between the fins F, F located at the air outlet B to thereby extend both ends. When the claws 3b, 3b of the projecting portions 3a, 3a are respectively engaged with the fins F, F, the air outlet B
Can be attached to most of the air outlets B having the fins F, F. In addition, if the housing 2 is separated from the fixing portion 3, the filter 4 can be replaced and the degree of contamination can be confirmed. Can be easily performed without damaging the fins F, F.

In other words, the work of attaching the filter 4 to the air outlet B and the work of replacing the filter 4 can be easily performed by the user of the automobile in the vehicle interior, and the outside air introduced into the vehicle interior can be easily purified. become.

Further, in the air filtering device 1 for an automobile,
Since the honeycomb board 5 is provided at the end of the housing 2, the wind direction control function (rectification function in this embodiment) is maintained to the same extent as when the automobile air filtering device is not attached to the air outlet B. Will be done.

FIG. 4 shows another embodiment of the automotive air filtering apparatus according to the present invention. The automotive air filtering apparatus 11 in this embodiment is different from the automotive air filtering apparatus 1 in the previous embodiment. However, the upper and lower walls 2a and 2b at the vehicle interior side end of the housing 2 are provided with recesses 2d and 2d facing each other, and the upper and lower edges 5a and 5b of the honeycomb board 5 are substantially vertically centered in the left and right directions. Shafts 5c, 5c are provided respectively, and the recesses 2d,
2d and the shafts 5c, 5c of the honeycomb board 5 are fitted to each other so that the honeycomb board 5 is rotatably supported with respect to the housing 2, and other configurations are the same as those in the previous embodiment. This is the same as the automotive air filtration device 1.

In this case, the honeycomb board 5 is regulated so as to rotate within a range of ± 30 ° with respect to the housing 2.

In the air filtering apparatus 11 for an automobile, the honeycomb board 5 is used as a wind direction control means, and is rotated within a range of ± 30 ° around a substantially vertical axis 5c with respect to the housing 2. The wind direction is controlled without impairing the design of the exterior or adversely affecting the operability of the peripheral switches.In addition, the simplification of the structure and the reduction in the thickness of the entire device are achieved. Become.

FIG. 5 shows still another embodiment of the air filtering apparatus for a vehicle according to the present invention. In the air filtering apparatus 21 for a vehicle according to this embodiment, both side walls 22e, 22e of the end of the housing 22 in the vehicle compartment are provided. Are formed in a curved shape conforming to the rotation trajectory of the honeycomb board 5, and other configurations are the same as those of the air filtering device 11 for a vehicle in the previous embodiment.

In the air filter 21 for an automobile, even if the honeycomb board 5 is rotated, no gap is formed between the side walls 22e, 22e of the housing 22 at the inner end of the housing and the honeycomb board 5. Thus, air is prevented from leaking from cells other than the cells of the honeycomb board 5.

FIG. 6 shows still another embodiment of the automotive air filtering apparatus according to the present invention.

The vehicle air filtering device 31 has a housing 32 for holding a filter (not shown), a cylindrical shape surrounding the air outlet, and an end for the air outlet on the side of the vehicle. There is provided a fixing portion 33 integrally provided with two extending portions 33a, 33a having the same structure as the filtering device 21 and attached to the air outlet in the same manner. Left and right side walls 33
c, and a substantially horizontal axis 32d is provided at the center of each of the left and right side walls 32c of the housing 32 in the vertical direction.
And the shaft 32d of the housing 32 are fitted to each other to
The housing 32 is supported so as to be rotatable vertically.

In the air filtering apparatus 31 for a vehicle, similarly to the air filtering apparatuses 11 and 21 in the previous embodiment, the wind direction is maintained without impairing the design of the external appearance or adversely affecting the operability of the peripheral switches. In addition to the control, the structure is simplified and the thickness of the entire device is reduced. Further, the honeycomb board 5 used as the wind direction control means by the vehicle air filtration devices 11 and 21 in the above embodiments is not used. The cost can be reduced accordingly.

FIG. 7 shows still another embodiment of the automotive air filtering apparatus according to the present invention.

In the air filter 41 for an automobile,
The interior end surface 42f of the housing 42 is set toward the occupant (lower right side in the figure), and the state along the end surface f of the housing 42 is set to the neutral state of the honeycomb board 5. Other configurations are the same as those of the previous embodiment. This is the same as the automobile air filtration device 21.

In the automotive air filtering device 41, since the honeycomb board 5 faces the occupant in the neutral state in front of the vehicle, the range of rotation of the honeycomb board 5 with respect to the housing 2 can be reduced without reducing the degree of freedom in adjusting the wind direction. Therefore, the thickness of the entire apparatus can be further reduced.

In this case, as another means for realizing a further reduction in the wall thickness of the entire apparatus while realizing a reduced rotation range of the honeycomb board 5 with respect to the housing 2, the air filtering apparatus for an automobile in the previous embodiment is used. 21 housing 22
It is also possible to adopt a configuration in which the state along the end face of the honeycomb board is set to the neutral state of the honeycomb board, and the axis of the cells of the honeycomb board is inclined such that the blowing direction of the air passing through the honeycomb board in this neutral state is directed to the occupant. is there.

Next, the cell pitch is 0.3 mm or more and 20 m or more.
m and a thickness of 2 mm or more and 30 mm or less and six types of honeycomb boards, and at least one of the cell pitch and the thickness is four types of honeycomb boards outside the above range, and does not leak air to the air outlet. 5 were attached to the vehicle air filtration device 21 shown in FIG. 5 and the air flow reduction rate (%) and the rectification performance were tested. The results shown in Table 1 were obtained.

In this case, the rate of decrease in the air volume is measured by installing a viram-type anemometer (windmill anemometer) at the air outlet, and the air volume is reduced by 20 compared to when the automobile air filter 21 is not attached to the air outlet. % Was determined to be insufficient in performance.

On the other hand, the rectification performance is determined by setting the blowing direction toward the face of the occupant seated in the driver's seat, and when the wind is felt (good), when weak, the wind is acceptable (△), The case where the wind was not felt was judged as unacceptable (x).

[0054]

[Table 1] From Table 1, it can be seen that the automotive air filtration device 21 equipped with six types of honeycomb boards (samples 1 to 6 of the present invention) having a cell pitch of 0.3 mm to 20 mm and a thickness of 2 mm to 30 mm has a cell pitch and a thickness. At least one of them has a smaller decrease in air volume than an automobile air filtration device equipped with three types of honeycomb boards (comparative samples 1 to 4) outside the above range, and is also excellent in rectification performance. I was able to prove that.

The cell pitch is 2 mm and the thickness is 5 mm.
mm honeycomb board of 50 mm x 50 mm was attached to the air outlet of the 50 mm x 50 mm so as not to leak air, when not rotated, when the rotation range is ± 10 °, Thickness required for rotation when the rotation range is ± 30 ° and when the rotation range is ± 45 °, that is, the thickness (mm) required for wind direction control
Are shown in Table 2.

At this time, a fin having a width of 25 mm which is usually installed at an air outlet of 50 mm × 50 mm is attached to an air outlet of about 12.5 m.
Table 2 also shows the thickness (mm) required by the movable louvers arranged at a pitch of m for controlling the wind direction.

[0057]

[Table 2] From Table 2, the case where the honeycomb board was rotated within ± 30 ° around one of a substantially vertical axis and a substantially horizontal axis from a position along the end face of the housing (trials 1 to 3) ), It can be demonstrated that the thickness required for wind direction control is equal to or less than the case of using a movable louver (comparative trial), and when the rotation range exceeds ± 30 ° (trial 4). It was confirmed that there was no point in using a honeycomb board as wind direction control means.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view showing an embodiment of a vehicle air filtration device according to the present invention.

FIG. 2 is an explanatory front view of the automotive air filtration device shown in FIG. 1;

FIG. 3 is an explanatory rear view of the automotive air filtration device shown in FIG. 1;

FIG. 4 is an explanatory front view showing another embodiment of the automotive air filtration device according to the present invention.

FIG. 5 is an explanatory plan view showing still another embodiment of the automotive air filtration device according to the present invention.

FIG. 6 is an explanatory plan view showing still another embodiment of the automotive air filtration device according to the present invention.

FIG. 7 is an explanatory plan view showing still another embodiment of the automotive air filtration device according to the present invention.

[Explanation of symbols]

 1,11,21,31,41 Air filtration device for automobiles 2,22,32,42 Housing 3,33 Fixed part 4 Filter 5 Honeycomb board (wind direction control means) 5c Approximately vertical axis 32d Approximately horizontal axis B Air outlet

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroaki Harada, Nissan Motor Co., Ltd. Nissan Motor Co., Ltd. Inside the corporation

Claims (11)

[Claims] 1. An automobile air filtration device, comprising: a filter for covering an air outlet disposed in a vehicle interior of an automobile, wherein the filter in the vehicle interior can be attached to and detached from the air outlet. 2. A housing having a cylindrical shape mounted on an air outlet disposed in a vehicle cabin of an automobile, and a filter mounted on the housing and covering the air outlet,
An air filtering device for an automobile, wherein at least one of a housing and a filter is detachable in the vehicle interior. 3. The filter according to claim 2, wherein a fixing portion to the air outlet is detachably mounted on the housing, and the filter is held between the housing or the housing and the fixing portion.
4. The air filtration device for an automobile according to claim 1. 4. The vehicle air filtration device according to claim 1, further comprising a wind direction control means. 5. The wind direction control means is located closer to the vehicle interior than the filter, and is rotatably supported by the housing via at least one of a substantially vertical axis and a substantially horizontal axis. 4. A honeycomb board having a honeycomb structure.
4. The air filtration device for an automobile according to claim 1. 6. The honeycomb board rotates from a position along an end surface of the housing around at least one of a substantially vertical axis and a substantially horizontal axis in a range of ± 30 °. 4. The air filtration device for an automobile according to claim 1. 7. The cell pitch of the honeycomb board is 0.3 m.
The air filtration device for an automobile according to claim 5 or 6, wherein the thickness is 2 mm or more and 20 mm or less, and the thickness is 2 mm or more and 30 mm or less. 8. The automotive air filter according to claim 5, wherein the honeycomb board has a deodorizing function. 9. The air filter according to claim 5, wherein an end face of the housing is set to face an occupant, and a state along the end face of the housing is set to a neutral state of the honeycomb board. 10. A state in which the state along the end face of the housing set rearward in the vehicle interior is a neutral state of the honeycomb board, and the cells of the honeycomb board are oriented so that the direction of air blowing through the honeycomb board in the neutral state is directed to the occupant. The vehicle air filtration device according to any one of claims 5 to 8, wherein the axis is inclined. 11. The housing is rotatably supported by a fixing portion to the air outlet through at least one of a substantially vertical axis and a substantially horizontal axis. 9. The automotive air filtration device according to any one of claims 1 to 8.