JPH0796961B2 - Blade structure of air conditioning outlet - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a blade structure for adjusting a wind direction that is pivotally supported by an air conditioning outlet so as to be automatically swingable.

(Prior Art) For example, in a swing louver for an automobile, a fin body for adjusting a wind direction arranged at a wind outlet is pivotally supported by an upper and lower louver frames via a swing shaft to be used as a power source such as an electric motor. A mechanism for automatically swinging to the left and right with the swing shaft as a fulcrum has been proposed (see Jitsukai 55-6768). In such an automatic swing louver, there has been proposed a mechanism capable of switching to manual swing with the swing axis as a fulcrum so that the wind direction can be manually set to a desired direction when the automatic swing is stopped (for example, , JP-B-58-4256), in such a mechanism, the stop direction of the fin body is not uniform when the drive source stops. Therefore, the wind direction is manually adjusted after the fin body stops swinging. .

(Problems to be Solved by the Invention) However, in order to manually adjust the direction of the fin body, the connection between the stopped drive transmission mechanism and the fin body is released, and the fin body can be swung by a manual force. It is necessary to provide a clutch mechanism (phase adjusting means). In order to eliminate the switching operation, such a clutch mechanism generally adopts a friction type sliding mechanism or an overrunning clutch mechanism such as a ratchet wheel for linking with the drive transmission section so that the link can be automatically released in association with a manual operation. However, if the latter automatic switching is used, it is necessary to overcome the linkage force with the drive transmission part when moving manually and move the coupling part. However, there is a problem in that the rocking drive becomes difficult.

Further, as shown in FIG. 4, when the blades intersect in the blowing direction to change the wind direction, the airflow passing through the outside of the blades becomes a turbulent state, and the blowing noise becomes high, resulting in quietness. There is also a problem that air conditioning becomes difficult.

Therefore, it is an object of the present invention to adjust the direction of the blades at the time of stop without using a clutch mechanism that switches between automatic swing and manual swing, and at the same time reduce the blowing noise when adjusting the wind direction. To do.

(Means for Achieving the Object) In the present invention, in order to adjust the wind direction when the automatic swinging is stopped, at least the front portion of the blade body may be set to a desired direction,
In addition, as a result, the blade body bends along the flow direction of the air, and as a result, the entire air flow becomes a laminar flow state and the direction is changed, and no unnecessary blowing noise is generated. In the air conditioning outlet where the wind direction adjusting vanes can be continuously swung by the drive source, the swingable pivotally supported vanes are divided into two parts in front and back along the air flow direction. When the divided parts are linearly tandemly aligned, they are engaged and connected by a spring biasing force, and when the split parts are bent by a bending force of a predetermined value or more against the spring urging force, the engaged state is released. Joined via a bendable moderation mechanism, one divided body is connected to a drive source via a link mechanism, and the blade body can be automatically swung as a whole, while the other divided body is connected to the other divided body. In contrast, it can be bent with a manual knob. At the same time, when the disengaged divided bodies are linearly tandem with each other due to the automatic swing start of the other divided body, the divided bodies can be re-engaged by the spring urging force to start driven. It is in the blade structure at the exit.

In the present invention, various means may be adopted as a drive source, but an electric motor is generally used.

The blade body is not limited to a single blade body, and can be applied to a case where a plurality of blade bodies are connected and interlocked with each other such as an automobile swing louver.

(Operation) According to the present invention, a normal blade body swinging form is adopted during automatic swinging, but when the automatic swinging is stopped, the moderation between the front portion and the rear portion of the blade body is operated by operating the manual knob. Since the joining by the mechanism can be released and the front part of the blade body can be bent in a desired direction with respect to the rear part, the direction of the wind direction can be adjusted by flowing the air flow along the bent blade body. it can. Further, since the air is guided by the bent blade body to form a laminar flow and changes its direction, no blowing noise is generated.

Hereinafter, the present invention will be described in detail based on specific examples shown in the accompanying drawings.

(Embodiment) FIG. 1 is a sectional side view in the case where the air-conditioning outlet vane structure according to the present invention is applied to a uniaxial swing type swing louver of an automobile, and FIG. 2 is a sectional view taken along line II-II thereof. FIG. 11 is an exploded perspective view showing the overall structure of FIG.

In the drawings, a swing louver for an automobile includes a front case body C and an automatic blade body swinging mechanism M incorporated therein, and a horizontal swinging blade W is provided at an air conditioning outlet 1 of the case body C.
While the blade body 2 is pivotally supported up and down, the blade body automatic swing mechanism M automatically swings the blade body 2 left and right by the rotational drive of the electric motor M, and manually swings by the operation knob 7. Has become. Specifically, the plurality of fin bodies 2 are juxtaposed at predetermined intervals in the air-conditioning outlet 1 having a horizontally long opening, and each fin body 2 is provided with oscillating shafts 21, 21 projecting at the upper and lower ends of the center thereof. The fins 2 are pivotally supported by the upper and lower louver frames 11 and 12 so as to be swingable right and left, and the fins 2 are forwardly mounted via shafts 22 and 23 projecting at the front and rear upper ends of the rocking shaft 21. The connection member 3 and the rear connection member 4 are pivotally supported and interlocked with each other.
Further, the connecting member 4 is connected to a link board 6 which is rotationally driven by an electric motor M via a link member 5, and reciprocating motion is performed on the connecting member 4 via the link member 5 by rotational driving of the link board 6. That is, an automatic rocking mechanism having the rocking shaft 21 of each fin body 2 as a rocking center is configured. On the other hand, one of the operation knobs 7 is attached to the front of the blade body 2.

The blade structure according to the present invention is incorporated in the blade body 2 of the above-described uniaxial automatic swing mechanism. That is, as shown in FIGS. 1 and 2, the blade body 2 is vertically divided along the swing shaft 21, and the respective split bodies 2a and 2b are pivotally attached to the swing shaft 21 in a hinge form. In addition, the moderation mechanism 8 is incorporated in the meshing portion in the central portion. That is, the meshing portion 8a of the front divisional body 2a forms a cylindrical portion 81 through which the swing shaft 21 is inserted, and the concave portion 82 is formed on the outer periphery thereof, while the meshing portion 8b of the rear divisional body 2a has the cylindrical portion 81. A surrounding semi-cylindrical portion 83 is formed, and a pin 84 that engages with the recess 82 is biased by a spring 85 and projects from the inner circumference of the semi-cylindrical portion 83.

Therefore, at the time of automatic swing, the blade body 2 moves the above-mentioned moderating mechanism 8
, But they swing together as shown in FIG.
When the operation knob 7 is swung to the left, for example, to change the wind direction after stopping the swing, the front divided body 2a and the rear divided body 2b in the moderation mechanism 8 are disengaged and only the front divided body 2a shakes. It will bend to the left around the moving shaft 21 (see FIG. 3). Compared with the conventional non-bendable blade body 2 shown in FIG. 4, such a bent form can guide the air flow along the bent side surface of the blade body 2 without difficulty, so that the turbulent flow shown in FIG. Do not cause.

The blade body 2 stops automatically at the neutral position as shown in FIG. 2, but the blade body 2 can be guaranteed to be bent as shown in FIG. 3 by manual adjustment after the stop. ,
It is preferable for suppressing the blowing noise. Therefore, as described in detail in the application “Blade control device for air-conditioning outlet” so that the automatic swing of the blade body 2 is stopped at the neutral position, the control switch SW2 including the micro switch shown in FIG. It is preferable to incorporate the stop position control circuit C2 included in the drive circuit CI including the electric motor M, the power source S, and the switch SW1 in parallel.

However, the front divided body 2a of the blade body 2 stopped rightward as shown in FIG. 6 without incorporating the above control device.
Even if the vehicle is manually guided to the left, the front split body 2a
If the swinging range is restricted by the stopper SP, the moderating mechanism 8 meshes at the position shown in FIG. 6 after the start of the automatic swinging, and the automatic swinging is started without any trouble.

In the above embodiment, the center of swing of the blade body 2 and the center of folding of the blade body are aligned with each other, but as shown in FIG. 7, the center of swing may be displaced rearward or forward. in this case,
The moderation mechanism may be provided with concave and convex engaging portions 85 and 86 at the upper and lower end portions where the front divided body 2a and the rear divided body 2b are meshed with each other. As a result, as shown in FIG. 8, the entire blade body 2 including the front portion 2a and the rear portion 2b is automatically swung about the swing shaft 21, and as shown in FIG. The part 2a can be bent with respect to the rear part 2b.

The same members as those in the embodiment shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

(Effects of the Invention) As is clear from the above description, according to the present invention, the blades swingably supported at the air-conditioning outlet that can continuously swing the wind direction adjusting blade body by the drive source. The body is divided into two parts in the front and rear along the air flow direction, the divided parts are flexibly joined via a moderation mechanism, and one of the divided parts is connected to a drive source via a link mechanism, so that the blade body as a whole While automatically swinging, the other split body is bent with respect to the other split body by the manual knob. When stopping, the manual knob is operated to release the joint between the front part and the rear part by the moderation mechanism and the front part of the blade body can be bent in the desired direction with respect to the rear part to adjust the wind direction. There is no need to switch the drive transmission with the clutch mechanism like . Moreover, when the blade body itself is bent as in the present invention to adjust the wind direction, the air is guided by the bent blade body to form a laminar flow and changes the direction, so that no blowing noise is generated. Quiet air conditioning is possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional side view of a case in which the air-conditioning outlet vane structure according to the present invention is applied to a uniaxial swing type swing louver of an automobile, FIG. 2 is a cross-sectional view taken along the line II-II, and FIG. FIG. 2 is a cross-sectional view showing a state in which the tip of the blade body that has stopped automatic swinging in the state of FIG. 2 is bent to the left, and FIG. 4 is a cross-sectional view showing a state in which the conventional blade body is manually adjusted to the left. 5 to 5 are cross-sectional explanatory views of a moderation mechanism of the automatic return process of the blade body, FIG. 6 and a plan explanatory view of the entire blade body, and FIG. 7 are cross-sectional side views showing a modified example of the blade structure according to the present invention. , Fig. 8 shows 7
FIG. 9 is a plan view showing an automatic swing mode of the blade structure shown in FIG. 9, FIG. 9 is a plan view showing a manual mode shown in FIG. 7, and FIG. 10 is XX of FIG.
FIG. 11 is an exploded perspective view of the vane structure of the present invention applied to a swing louver for automobiles. 1 ... Air conditioning outlets, 11 and 12 ... Louver frame 2 ... Blade body, 2a, 2b ... Blade division body 21 ... Oscillation shaft 3, 4 ... Connecting member, 5 ... Link member 7 ... Operating knob

Claims (1)

[Claims] 1. An air conditioning outlet capable of continuously swinging a wind direction adjusting blade body by a drive source, wherein the swingably supported blade body is divided into two parts in the front and rear direction along the air flow direction. When the divided parts are linearly cascaded with each other, they are engaged and connected by a spring biasing force, and when the split parts are bent against the spring biasing force by a bending force of a predetermined value or more, the engaged state is released. And the other split body is connected to the drive source via the link mechanism to automatically swing the blade body as a whole, while the other split body is joined to the other split body. The body can be bent with a manual knob, and when the disengaged split bodies are aligned in a straight line with each other due to the automatic swing start of the other split body, they are reengaged and driven by the spring biasing force. Air conditioning blowout characterized by being ready to start Feather structure of the mouth.