JP2003011658A - Ventilator in vehicle - Google Patents

Abstract

(57) [Problem] To provide a ventilator for adjusting a flow rate and a flow direction of air blown out from an air conditioner of an automobile, and to precisely adjust a flow direction and a closing of an air outlet and operate the adjustment. Make people realize it. SOLUTION: Between an outer case CO and an inner case CI rotatably provided in the inner case CO, the inner case CO is held at a rotational position with a sense of moderation to adjust the flow direction of air, and the adjustment is performed. A shut spring 38 is provided between the outlet 23 of the inner case CO and the louver 25 to elastically lock the louver 25 in the fully closed position while providing a shut feeling. To realize the fully closed position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilator for adjusting the flow rate and direction of air blown from an air conditioner of a vehicle, mainly an automobile.

[0002]

2. Description of the Related Art Conventionally, a cylindrical case having an open front and rear surface and a rotating member rotatably supported in the case are provided, and a louver can be opened and closed at an air outlet opening on the front surface of the rotating member. A ventilator, which is provided on the air conditioner and is configured to adjust the flow rate of the air flowing through the air outlet and the flow direction thereof by opening and closing the louver and rotating the rotating member, is known (for example, Japanese Patent Laid-Open No. 2000-203254). (See issue)

[0003]

By the way, in such a ventilator, by controlling the rotation of the rotating member, the flow direction of the air discharged from the air outlet is adjusted, and by controlling the opening and closing of the louver provided at the air outlet, the air flow is controlled. It is configured to adjust the flow rate, but in such a case, the adjustment desired by the operator,
In particular, it is desirable that the adjustment of the air flow direction and the adjustment of the closing of the louver be surely performed, and that the adjustment be appealed to the operator's five senses to be surely realized. There is a problem not.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ventilator for a new vehicle that solves the above-mentioned problems.

[0005]

In order to achieve the above-mentioned object, the invention according to the first aspect of the present invention is characterized in that a cylindrical outer case whose front and rear surfaces are open, and rotatably supported in the outer case, An inner case that communicates with the outer case is provided, and a louver is openably and closably provided at a blowout port that is opened in a front surface of the inner case, and a louver is opened and closed by an inner case rotation control. The flow rate of the air flowing through the outlet and its flow direction are adjusted.
In a ventilator of a vehicle, a moderation holding means is provided between the outer case and the inner case so as to hold the inner case at a predetermined rotational position with a moderation feeling, and the louver is provided between the air outlet and the louver. It is characterized by providing a locking means that elastically locks in the fully closed position while giving a shut feeling, and according to such a feature, the inner case is attached to the outer case in order to adjust the air blowing direction. When adjusting the rotation, it is possible to give the operator a sense of moderation and hold it in the desired adjustment position securely, and to make the operator actually feel the adjustment, and also to adjust the amount of air blown out. In order to adjust the opening and closing of the louver and fully close it, it is possible to elastically lock the louver in the fully closed position while giving the operator a shut feeling. Outlet can be reliably realize the operator that fully closed.

In order to achieve the above object, the invention according to claim 2 is the invention according to claim 1, wherein a seal member is provided along the outer peripheral edge of each of the plurality of blades forming the louver. When the blades fully close the air outlet, the sealing members are closely attached to the inner peripheral edge of the air outlet to prevent air leakage when the air outlet is fully closed. According to this feature, in addition to achieving the same effect as that of the invention described in claim 1, it is possible to reliably prevent air leakage when the air outlet is fully closed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.

In the present embodiment, the ventilator of the vehicle of the present invention is installed in an instrument panel of an automobile so as to adjust the flow rate and the direction of the air blown from an air conditioner provided in the automobile and send the air into the passenger compartment. It is the case, Fig. 1
2 is a perspective view of an instrument panel of an automobile equipped with the ventilator of the present invention, FIG. 2 is a perspective view of the ventilator as viewed from the arrow 2 in FIG. 1, FIG. 3 is a front view of the ventilator as viewed in the arrow 3 of FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, FIG. 5 is a sectional view taken along line 5-5 of FIG. 4, and FIG.
A sectional view taken along line -6, FIG. 7 is a sectional view taken along line 7-7 in FIG. 4, FIG. 8 is a sectional view taken along line 8-8 in FIG. 5, and FIG.
8 is a sectional view taken along line 9-9 of FIG. 8, and FIG.
It is sectional drawing which follows the 10 line.

In FIG. 1, four mounting holes 1 are opened at intervals in the lateral direction on the surface of an instrument panel IP which separates the engine room of the automobile from the vehicle compartment. The ventilator B according to the present invention is provided, and the air conditioned by an air conditioner (not shown) provided in the engine room or the outside air is discharged into the vehicle cabin after the flow rate and the wind direction are adjusted by the ventilator B.

Next, the structure of the ventilator B according to the present invention will be described in detail with reference to FIGS.

As shown in FIGS. 2-5, a ventilator B
Is an outer case CO that is formed into a cylindrical shape with front and rear surfaces open.
And an inner case CI which is also formed in a cylindrical shape with the front and rear surfaces open and is fitted and supported in the outer case CO so as to be rotatable around its central axis. The outer case CO and the inner case CI are both formed of a hard synthetic resin material.

A pair of mounting ear pieces 2 are integrally provided at a portion of the outer peripheral surface of the outer case CO near the front surface at intervals in the circumferential direction, and as shown clearly in FIG. Outside the mounting hole 1, the ear piece 2 is fixed to the front panel of the instrument panel IP with a pair of mounting bosses 3 projecting from the rear side with screws 4, whereby the ventilator B is mounted in the mounting hole of the instrument panel IP. 1
It is detachably fixed to. Further, as shown in FIG. 4, an outward flange portion 5 is integrally formed on the outer peripheral edge of the rear surface of the outer case CO, and an annular seal member 6 is fitted thereto. Along with the facing flange 5, it is fluid-tightly fitted to the outlet 8 on the downstream side of the blowout duct 5 formed in the instrument panel IP, and fluid-tightly seals between the blowout duct 5 and the ventilator B. As shown in FIGS. 4 and 7, a coarse grid mesh 10 is integrally formed on the rear end surface of the opening of the outer case CO (upstream end surface on the upstream side). A bearing cylinder 11 that rotatably supports the inner case CI, which will be described in detail, is fixed. Further, on the inner peripheral surface of the outer case CO near the opening front end surface (downstream end surface), a ring-shaped first step surface 12 is provided over the entire circumference, and on the inner peripheral surface of the outer case CO near the opening rear end surface (downstream end surface). An annular second step surface 13 is formed on the inner peripheral surface over the entire circumference thereof, and the inner peripheral surface of the outer case CO extends from the opening front end surface to the opening rear end surface, that is, from the downstream end side to the upstream side. The first and second step surfaces 12, 13 toward the end side.
The inner diameter becomes smaller in order from the boundary. The first
The step surface 12 is flat and forms a stopper surface for axially positioning the inner case CI, which will be described later, and the second step surface 13 has an entire circumference. The corrugated ridges 14 are formed, and the ridges 14 are formed on the inner case CI.
When the inner case CI is rotationally adjusted by engaging with the inner case CI (see FIG. 10), the operator is given a moderation sensation associated with the rotational adjustment. Then, the uneven strip 1
4 and the moderation piece 52 constitute moderation holding means which is a part of the gist of the present invention, as described later.

In the inner case CI rotatably held in the outer case CO, a pair of support pieces 17 are integrally provided on the left and right of the inner end surface of the opening, and a support rod 18 is interposed between these support pieces 17. The support shaft 19 passing through the longitudinal center of the inner case CI is integrally provided. As shown in FIG. 4, the support shaft 19 is rotatably supported by the bearing tube 11 of the outer case CO, whereby the inner case CI is free to rotate about the support shaft 19 with respect to the outer case CO. Can be rotated. Further, as shown in FIG. 4, a connecting bolt 21 is screwed to the support shaft 19 from the outside of the outer case CO through a washer 20 that is brought into contact with the outer end surface of the bearing cylinder 11.
The inner case CI is regulated in its axial position with respect to the outer case CO, and is prevented from coming out therefrom.

As shown in FIGS. 2 and 3, the inner case CI is
Has a flat surface 23a parallel to the up-down direction on the left and right sides of the front surface (downstream end surface) of the air outlet 23.
Is opened. The outlet 23 is opened and closed by a louver 25. The louver 25 is provided with first and second blades, that is, upper and lower blades 26 and 27, which are controlled to open and close in conjunction with each other, by which the outlet 23 is opened and closed. The upper blade 26 that opens and closes the upper half of the air outlet 23 is formed to be slightly larger than the lower blade 27, and a circular pressing portion 26a that is recessed inward is formed in the center of the surface thereof. By pressing the pressing portion 26a with a fingertip, the upper blade in the closed position can be opened. Also, the upper blade 2
The upper outer edge and the lower outer edge of 6 are formed into convex arc surfaces, and the left and right edges thereof are formed into flat surfaces, and the upper outer edge and the left and right edges thereof are formed so as to match the edge portion of the blowout port 23. ing.

On the other hand, the lower blade 27, as shown in cross section in FIG. 4, has a rear surface of the upper blade 26 via a stepped portion 27a formed of a concave arc surface matching the convex arc surface of the upper blade 26 on the upper portion thereof. When the extension portion 27b that extends so as to overlap the side is integrally formed, the lower outer edge of the extension portion 27b is formed into a convex arc surface, and the left and right edges thereof are formed into flat surfaces. It is formed to match the edge of the outlet 23.

As shown in FIGS. 4 and 5, the upper blade 26
Paired hinge arms 28 and 29 are integrally formed on the left and right rear surfaces of the lower blade 27, and these hinge arms 28 and 29 are integrally formed on the left and right inner side surfaces of the inner case CI. The hinge pins 30 and 31 are rotatably connected. Further, as shown in FIGS. 4 and 5, the upper blade 26 and the lower blade 27 are provided with connecting arms 33 and 34 integrally in the middle of the back surface thereof.
These connecting arms 33, 34 are interlockingly connected by connecting pins 35, 36 to an interlocking link 37 penetrating a notch 27c formed in the extension portion 27b of the lower blade 27. Thus, the upper blade 26 and the lower blade 2
7 are interlocked with each other via an interlocking link 37 and are synchronously opened and closed around the hinge pins 30 and 31. And
When the upper blade 26 and the lower blade 27 are fully closed, the lower portion of the upper blade 26 is below the lower blade 27.
The blow-out port 23 is fully closed by overlapping with the extension portion 27b.

As shown in FIG. 5 and FIGS. 8 and 9, a pair of shut members constituting a locking means which is a part of the gist of the present invention is formed on the outer surfaces of the left and right flat side walls of the inner case CI. The eggplant shut springs 38 are fixed. The base of each shut spring 38 is an inner case C.
The side wall of I is bolted 39, and the free end portion 38a extending from the base is formed in a U shape in cross section (see FIG. 9). The free end portion 38a is formed in the side wall of the inner case CI. It penetrates through the provided window hole 40 and protrudes inside the side wall of the inner case CI, that is, on the side where the lower blade 27 exists. Then, this free end portion 38a
As shown in FIG. 9, the protruding position of is a position immediately before the lower blades 36 and 27 are fully closed, and is a position where the lower blade 27 engages with a side edge portion of the lower blade 27. , The side edge of the lower blade 27 moves from the position immediately before the fully closed position to the fully closed position by the free end portion 38.
While pressing a, resisting the spring force of the shut spring 38 and engaging with this, and the lower blade 27 is fully closed,
The spring force elastically locks the lower blade 27 in the fully closed position, and at that time gives the operator a reliable shut feeling (a feeling of total closing), and the louver 25 fully closes the outlet 23. You can make them sense what you have done. When the lower blade 27 is opened from the fully closed position, the lower blade 2
The side edge of 7 engages with the free end 38a of the shut spring 38 while overcoming it. As described above, when closing the upper and lower blades 27, that is, the louver 25,
By elastically engaging the pair of shut springs 38 and the lower blade 27 as locking means, it is possible to give the operator a certain sense of total closed degree, that is, a shut feeling, and the louver 25 is fully closed. You can easily confirm that.

As shown in FIGS. 4 and 5, the upper blade 26
A fitting groove 41 having a U-shaped cross section is formed over the entire length on the outer peripheral edge formed by the convex arc surface.
A seal member 42 made of an elastic material such as rubber is integrally fitted to the unit 1. The outer edge portion of the seal member 42 extends outwardly beyond the upper edge of the upper blade 26, and when the upper blade 26 is fully closed, the seal member 42 is in close contact with the edge portion of the air outlet 23 to enhance airtightness. Also, the lower blade 2
A fitting groove 44 having a U-shaped cross section is formed on the outer peripheral edge of the convex arc surface of 7 over the entire length thereof.
A seal member 45 made of an elastic material such as rubber is integrally fitted to the unit 4. The sealing member 45 has a fin-shaped rib 45a integrally projecting toward the inside of the air outlet, and an outer edge portion of the sealing member 45 extends more outward than a step-shaped lower edge of the lower blade 27. When the lower blade 27 is fully closed, a crank-shaped labyrinth is formed between the lower edge of the step and the seal member 45, and the labyrinth packing function is obtained between the labyrinth and the airtightness of the labyrinth. To be enhanced.

The rib 45a of the seal member 45
When the lower blade 27 is opened, the effect of changing the direction of the wind flowing from the outlet 23 to the outside can be obtained.

As shown in FIG. 4, on the outer peripheral surface of the inner case CI, an outwardly facing flange 47 is integrally projectingly provided at the axially intermediate portion of the upper and lower circular arc surfaces excluding the left and right flat surfaces thereof. On the inner surface of the flange 47, several stopper pieces 48 are integrally formed at intervals in the circumferential direction.
Then, as shown in FIG. 4, when the inner case CI is fitted and assembled in the outer case CO, the stopper piece 48 is
Comes into contact with the first step surface 12 of the outer case CO, and the position of the inner case CI in the axial direction inward with respect to the outer case CO is restricted. Further, as shown in FIGS. 4 to 6, inward of the flange 47 of the inner case CI, upper and lower circular arc surfaces that are fitted to the inner peripheral surface of the outer case CO are formed. A plurality of fitting protrusions 50 are formed integrally with each other at intervals in the circumferential direction, and these fitting protrusions 50 are in close contact with the inner peripheral surface of the outer case CO, and the outer case CO When the inner case CI is rotated with respect to the inner case CI, the plurality of protrusions are brought into sliding contact with the inner peripheral surface of the outer case CO, and the inner case CI is
The inside of the outer case CO can be freely and smoothly rotated, and the direction of the air flowing through the air outlet 23 can be changed.

As shown in FIGS. 4, 7 and 10, a pair of ladder-shaped moderation pieces 52 are integrally provided outside the left and right flat portions of the inner case CI on the diameter line thereof. As shown clearly in FIG. 10, the piece 52 is always engaged with a part of the uneven strip 14 formed on the second step surface 13 of the outer case CO, and the inner case CI.
When rotating with respect to the outer case CO, the pair of moderation pieces 52 can move on the concavo-convex ridges 14 while engaging with the ridges 14 to give the operator a rotational moderation sensation of the inner case CI. . The concavo-convex strip 14 and the moderation piece 52 constitute moderation holding means according to the present invention.

Next, the operation of this embodiment will be described.

Ventilator B constructed as described above
As shown in FIG. 1, each is attached to an attachment hole 1 opened in the instrument panel IP. That is, as shown in FIG. 4, the inner end surface of the ventilator B is fluid-tightly fitted to the outlet 8 of the blowout duct 7 provided in the instrument panel IP via the seal member 6, and is fitted into the outer case CO of the ventilator B. The pair of mounting tabs 2 provided is fixed to the mounting boss 3 of the instrument panel IP with screws 4.

The outlet 23 of the ventilator B is closed, the louver 25, that is, the two upper and lower blades 2.
Reference numerals 6 and 27 denote pressing portions 2 provided on the surface of the upper blade 26.
By pushing in 6a with a fingertip or the like, they are synchronized and released.

The conditioned air from an air conditioner (not shown) or the outside air passes through the blowout duct 7 and is discharged into the vehicle compartment through the blowout port 23 of the ventilator B.

After that, the air outlet 23 is opened.
By grasping either one of the edges of the upper and lower blades 26, 27 protruding further outward and adjusting the movement of the blades up and down, the opening degree of the blowout port 23 is adjusted by these blades 26, 27. It is possible to adjust the flow rate of the air discharged from the air outlet 23. Also,
By rotating the inner case CI with respect to the outer case CO, the direction of the air discharged from the air outlet 23 can be adjusted. The rotational position of the inner case CI can be held with a feeling of moderation by the pair of moderation pieces 52 of the inner case CI engaging with the concave-convex strips 14 of the outer case CO.

When the upper and lower blades 26 and 27 are rotated in the closing direction to close the outlet 23, right and left side edges of the lower blade 27 engage with the shut springs 38 immediately before they are fully closed, The spring 38 provides the operator with a feeling of fully closed moderation (shut feeling), and can surely hold the upper and lower blades 26 and 27 at the fully closed position. Further, at the fully closed position of the upper and lower blades 26, 27, the seal members 42, 45 provided on the upper and lower blades 26, 27 come into contact with the stepped portion of the peripheral portion of the blowout port 23 to reliably seal between them and to secure the space therebetween. It is possible to improve the sealing performance of the air conditioner and reliably prevent air leakage from the air outlet 23.

Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment and various embodiments can be made within the scope of the present invention.

For example, in the above-described embodiment, the case where the ventilator according to the present invention is provided in the instrument panel of the automobile has been described, but it goes without saying that it may be provided in an appropriate air blowing duct.

[0030]

As described above, according to the invention described in claim 1, in the ventilator of the vehicle, when the inner case is rotationally adjusted with respect to the outer case in order to adjust the air blowing direction, the operator It is possible to give a feeling of moderation to surely hold it in a desired adjustment position, and to let the operator feel the adjustment, and to adjust the opening and closing of the louver to adjust the amount of air blown out. However, when this is fully closed, the louver can be elastically locked in the fully closed position while giving the operator a shut feeling, and the operator can be sure that the blowout port is fully closed. be able to.

According to the second aspect of the present invention, the same effect as that of the first aspect of the invention can be obtained, and in addition, air leakage when the air outlet is fully closed can be reliably prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of an instrument panel of an automobile equipped with a ventilator of the present invention.

FIG. 2 is a perspective view of the ventilator taken along the arrow 2 in FIG.

FIG. 3 is a front view of the ventilator taken along the arrow 3 in FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

6 is a sectional view taken along line 6-6 of FIG.

7 is a sectional view taken along line 7-7 of FIG.

FIG. 8 is a sectional view taken along line 8-8 of FIG.

9 is a sectional view taken along the line 9-9 of FIG.

10 is a sectional view taken along the line 10-10 of FIG.

[Explanation of symbols]

14 ... ridges and valleys (moderation holding means) 52 .... Moderation piece (moderation holding means) 23 ... 25 ... louver 26 ... Blade (upper blade) 27 ... Blade (lower blade) 38 ... Shut member (locking means) 42 ... Sealing member 45 ... Seal member CO ... Outer case CI ... Inner case

Claims (2)

[Claims] 1. A cylindrical outer case (CO) having front and rear surfaces opened, and an inner case (CI) rotatably supported in the outer case (CO) and communicating with the outer case (CO). And the inner case (CI)
The louver (2
5) is provided so that it can be opened and closed, and the flow rate of the air flowing through the air outlet (23) and the flow direction thereof are adjusted by the opening and closing control of the louver (25) and the rotation control of the inner case (CI). In the ventilator of the vehicle, between the outer case (CO) and the inner case (CI),
Moderation holding means (14, 52) for holding the inner case (CI) at a predetermined rotation position with a moderation feeling are provided, and between the air outlet (23) and the louver (25),
A ventilator for a vehicle, comprising a locking means (38) for elastically locking the louver (25) in a fully closed position while providing a shut feeling. 2. Sealing members (42, 45) are provided along the outer peripheral edges of a plurality of blades (26, 27) constituting the louver (25), and these blades (2, 45) are provided.
6, 27) when the air outlet (23) is fully closed, those sealing members (42, 45) are in close contact with the inner peripheral edge of the air outlet (23) and the air outlet (23) is fully closed. The ventilator for a vehicle according to claim 1, wherein the air leakage is prevented.