KR20030069039A - Regulator for air blowing port - Google Patents

Abstract

(Problem) Provided is an improved air discharge port control device which can further improve the feeling of operation and prevent vibration from occurring.

(Solution means) A plurality of wing plates 3 connected to each other by the interlocking member 15, a damper 5 provided in the air passage, and a manual operation member (dial 6) for tilting and driving the wing plate and the damper. In the adjusting device of the excited air discharge port, gear means (pinion (8) and sector gear (9)) engaged with each other at the interlocking connection portion of the manual operation member and the damper is provided, and one of these gear means is positioned in the axial direction. It is supposed to be composed of two parts 9a and 9b which are coaxially separated, slightly offset, and are coaxially mounted, and which are elastically displaced and coupled relative in the circumferential direction. As a result, the two parts whose pitches are displaced are brought into contact with the inner surface of the teeth of the cogwheel on the other side with the elastic force, thereby preventing the occurrence of backlash.

Description

Regulating device of air outlet {REGULATOR FOR AIR BLOWING PORT}

The present invention relates to a device for adjusting the air discharge port.

A louver for adjusting the wind direction is provided at the discharge port for discharging air into the vehicle interior of the vehicle. The louver is generally linked to a plurality of vanes by a link mechanism or a cam mechanism, and the direction of the vanes installed in the discharge port by rotating a manual operation member such as a dial exposing a part thereof from the surface of the instrument panel panel. And the open / close state of the damper 5 (butterfly valve) installed in the ventilation path (see Japanese Patent Application Laid-Open No. 11-70814).

However, since the wing plate of the louver receives wind pressure directly, vibration causes vibration and causes abnormal sound. In order to support the wing plate so that there is no tremor, it is necessary to closely fit the engaging portion of the linkage and the support portion of the rotational shaft, but if the fitting is close, the operating force increases and the manufacturing precision and the assembly precision must be further increased. Therefore, the manufacturing process is likely to be complicated.

In addition, as disclosed in the above publication, it is difficult to linearize the relationship between the rotational angle of the manual operation member and the inclination movement angle of the vane plate by using the link mechanism and the cam mechanism. It was difficult to make it constant, and it was difficult to obtain a smooth operation feeling.

SUMMARY OF THE INVENTION The present invention has been made to solve such inconveniences of the prior art, and its main object is to provide an apparatus for adjusting an air discharge port that can further improve a feeling of operation and to prevent shaking.

1 is a perspective view around the instrument panel panel of the vehicle to which the present invention is applied

Figure 2 is a perspective view of the air discharge port according to the present invention

3 is a left side view of the air discharge port shown in FIG. 2 in a damper closed state;

Fig. 4 is a left side view of the air discharge port shown in Fig. 2 in the damper open state;

FIG. 5 is a right sectional view of the air discharge port shown in FIG. 2 in the damper closed state. FIG.

FIG. 6 is a right sectional view of the air discharge port shown in FIG. 2 in the damper open state. FIG.

FIG. 7 is a partial bottom view of the air discharge port shown in FIG. 2; FIG.

8 is a perspective view of principal parts of the air discharge port shown in FIG. 2;

9 is an enlarged left side view of the connecting portion of the horizontal wing plate and the interlocking member;

Explanation of symbols on the main parts of the drawings

1-Flange 2-Case

3-horizontal wing 4-vertical wing

5-Damper 6-Side Dial

7-Lower Dial 8-Pinion

9-Sector Gear 10-Rocker Arm

11-long hole 12-lever

13-support shaft 14-arm

15-interlocking member 16-protrusion

17-Long Hole 18-Pin

19-arc long hole 20a, 20b-support shaft

21-pin 22-arc long hole

23-long hole 24-slit

25-Pin 26-Long Hole

27-means for imparting rotational resistance

In order to achieve the above object, the present invention provides a plurality of wing plates 3 connected to each other by an interlocking member 15 and a damper 5 and a wing plate and a damper 5 installed in an air passage. The adjusting device for the air discharge port having the manual operation member (dial 6) according to claim 1, wherein the gear means (pinion 8, sector gear) engaged with the interlocking connection portion of the manual operation member and the damper (5). 9)), two parts of which one side of these gear means are divided on the axial direction, and the pitch is slightly shifted so as to be installed on the coaxial axis and coupled with the elastic force so as to be relatively displaceable in the circumferential direction. (9a · 9b).

In this case, the backlash is prevented from occurring because the two parts whose pitches are displaced are brought into contact with the inner surface of the teeth of the cogwheel on the other side with an elastic force.

In addition, the axial pin 25 and the center of inclination of the vane plate and the axial pin 25, which is formed between the plurality of vane plate and the interlocking member protruding at an offset position from the center of rotation of the vane plate It is assumed that the long axis is connected to the long hole 26 on a line parallel to the straight line connecting the.

In this way, the change of the friction angle of a long hole and a pin at the time of a wing plate inclined movement becomes minimal.

In claim 3, the rotational resistance imparting means 27 is provided on the rotational central axis of the manual operation member.

In this case, since the vibration of the manual operation member can be appropriately removed, the vibration of the wing plate linked thereto can be prevented.

Embodiment of the Invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 shows the periphery of the instrument panel panel of the automobile to which the present invention is applied. Air discharge ports A are provided at the left and right ends and the center of the substrate substrate P. FIG. Each of these air discharge ports A is connected to an air duct provided in the instrument panel panel P, and discharges the air passing through the air conditioner delivered by the blower into the cabin.

As shown in Fig. 2, the air discharge port A moves toward the inside of the case 2 and the case 2, which form a substantially cylindrical shape in which a flange 1 is formed on a connection surface with respect to the interior side surface of the instrument panel panel P. Intermittent inflow of air from a plurality of horizontal wing plates 3 freely inclined movement and a plurality of vertical wing plates 4 freely inclined movement inward in the case 2 and air ducts (not shown) The damper 5 (refer FIG. 3) which consists of a butterfly valve for this is provided.

The horizontal wing plate 3 rotates the side dial 6 provided at the left end of the flange 1 in FIG. 2 to incline and move around the horizontal axis to change the wind direction in the vertical direction. Is a tilting movement around the vertical axis by rotating the lower dial 7 provided at the lower end of the flange 1 in Fig. 2 to change the wind direction in the left and right directions.

The side dial 6 is freely rotatable on the side wall of the case 2, and a part of its outer circumferential surface slightly protrudes from the front of the flange 1, and the exposed portion of the front of the flange 1 is fingertip. It is possible to operate by rotating. The lower dial 7 is freely pivoted on the bottom wall of the case 2, and similarly to the side dial 6, a part of its outer circumferential surface slightly protrudes from the front surface of the flange 1, and this flange 1 The exposed part on the front of the) can be rotated with the fingertips.

On the outer side surface of the side dial 6, the pinion 8 coaxially with a rotating shaft is formed integrally as shown to FIG. 3, FIG. The pinion 8 is engaged with the sector gear 9.

The sector gear 9 is pivotally freely pivoted at a forward (engine side) lower position obliquely with respect to the rotation center of the side dial 6 on the side wall of the case 2, and the rocker arm is moved from the rotation center toward the engine side. (10) is extended. The free end of the rocker arm 10 forms a part of an arc around the pivot axis of the rocker arm 10, and one end thereof is bent outward in the radial direction to form an approximately L-shaped long hole 11. The free end of the lever member 12 formed integrally with the pivot central axis of the damper 5 is connected to this long hole 11.

When the side dial 6 is rotated downwardly (in the arrow direction) while the damper 5 shown in FIG. 3 is closed, the rocker arm 10 is left by engagement of the pinion 8 and the sector gear 9. Rotate to Then, the pin 12a firmly installed at the free end of the lever member 12 is press-fitted into the radially outer portion 11a of one end of the long hole 11 formed at the free end of the rocker arm 10, and the damper 5 is pressed in. Is driven in the open direction. Since the radius of rotation of the lever member 12 is smaller than the radius of curvature of the long hole 11, when the damper 5 reaches the fully open position shown in FIG. 4, the long hole 11 of the free end of the rocker arm 10 is reached. ) The pin 12a of the free end of the lever member 12 is fitted to the arcuate portion. Thus, the damper 5 stops at the fully open position, but can further continue the downward rotation operation of the side dial 6 by the range of the long hole 11.

The plurality of horizontal vanes 3 has a horizontal axis between the left and right wall inner surfaces of the case 2, and both ends thereof are stacked. As shown in FIGS. 5 and 6, the support shaft 13 of each horizontal wing plate 3 is located on the upper edge side of the rear surface of the horizontal wing plate 3 in the closed state, and the horizontal wing plate in the open state ( 3) is provided at a position adjacent to the upper side of the front edge of, the horizontal wing plate (3) along the surface of the flange (1) draws a gentle arc when closed, is lined without gaps (see Fig. 5), At the time of opening, it arrange | positions so that each horizontal wing plate 3 may be extended in parallel (refer FIG. 6), leaving a suitable space | interval.

An arm 14 protrudes from the rear surface of each horizontal wing plate 3. This arm 14 is located in the lower edge side of the rear surface of the horizontal wing plate 3 in the closed state, and is provided in the position adjacent to the upper side of the rear edge of the horizontal wing plate 3 in the open state. That is, the support shaft 13 and the arm 14 are provided in the position which is substantially symmetrical with respect to the centerline along the longitudinal direction of the horizontal wing plate 3.

Each free end of the arm 14 is connected to each other by an interlocking member 15 forming a comb shape. These arms 14 and the interlocking member 15 are connected so that relative rotation is possible, and by moving the interlocking member 15 up and down, all the horizontal wing plates 3 interlock and incline and move simultaneously.

The projection 16 protrudes toward the engine side in the vertical direction of the interlocking member 15. The projection 16 is formed with a long hole 17 substantially in the front-rear direction.

The long hole 17 is indented with a pin 18 protruding from the inner side of the side dial 6. The pin 18 penetrates the long hole 19 formed in the side wall of the case 2 so as to form an arc around the rotational axis of the side dial 6, thereby defining its movable range.

As shown in FIG. 5, in the state where the damper 5 is closed, each horizontal vane plate 3 is also in a closed state. When the side dial 6 is rotated downward in this state, the interlocking member 15 moves upward with the pin 18 integral with the side dial 6, and each horizontal wing plate 3 connected thereto. This simultaneously shifts in the open direction. At the same time, the damper 5 is opened as described above. And even after the damper 5 is fully opened, as shown in FIG. 6, within the range defined by the arc-shaped long hole 19 formed in the side wall of the case 2, each horizontal wing plate 3 is furthermore. Continue tilting in the open direction. At this time, it is possible to adjust the wind direction in the vertical direction in accordance with the inclined movement angle of each horizontal vane (3).

On the other hand, each vertical vane plate 4 supports the support shafts 20a and 20b formed at the upper and lower ends thereof on the ceiling wall and the bottom wall of the case 2 so as to be inclined in the lateral direction about the vertical axis.

The pin 21 is vertically formed in the lower edge of the one vertical wing plate 4 of the center part with respect to the left-right direction of the case 2 to the support shaft 20b and the offset position downward. As shown in FIG. 7, the pin 21 penetrates the long hole 22 formed in the bottom wall of the case 2 so as to form an arc around the rotational axis of the lower dial 7, and the free end thereof. It engages with the long hole 23 along the substantially front-back direction formed in the lower dial 7. As shown in FIG. In this way, when the lower dial 7 is rotated to the left and right, each vertical wing plate 4 is moved to the left and right. In addition, each vertical wing plate 4 is interlocked by a link (not shown).

As shown in FIG. 8, the sector gear 9 is divided into two by the slit 24 along the surface orthogonal to an axis line. The teeth of the two parts 9a and 9b segmented are formed by slightly shifting the pitch. The sector gear 9 is integrally formed of a synthetic resin material, and the two portions 9a and 9b are slightly displaceable relative to the circumferential direction by the elasticity of the material itself.

When the sector gear 9 is engaged with the pinion 8, there is a deviation in the pitch, and since the relative deviation can occur in the circumferential direction along with the elastic force, the tooth surface of the sector gear 9 is the pinion 8 Close to the tooth surface of the. Thereby, since the occurrence of backlash is prevented, there is no trembling in the feeling of operation of the side dial 6.

As shown in FIG. 9, the free end of the arm 14 of the horizontal wing plate 3 and the interlocking member 15 have a pin 25 protruding from the free end of the arm 14. It connects to each other by making it intrude into the long hole 26 formed in the free end of 15a). Here, the long axis of the long hole 26 is parallel to the straight line L connecting the intermediate point α1 = α2 of the rotation range of the pin 25 and the center of the support shaft 13. As a result, the change in the friction angle between the pin 25 and the long hole 26 when the horizontal vane 3 is inclined is reduced, so that the loss at the time of interlocking the plurality of horizontal vanes 3 is reduced. At the same time, the change of the operating force according to the rotation angle is suppressed.

The rotational resistance imparting means 27 is provided in the support part of the lower dial 7 with respect to the bottom wall of the case 2, for example, axially extending a plurality of O-rings. As a result, resistance can be appropriately applied to the rotation of the vertical vane plate 4, so that the vertical vane plate 4 is not shaken. It goes without saying that the rotational resistance applying means 27 can also be applied to the supporting portion of the side dial 6. In addition, the rotation resistance imparting means 27 is not limited to the O-ring, but may also be, for example, encapsulation of silicon grease. Rotational resistance can be adjusted simply.

Although the above embodiment has been described with reference to an application example for the air discharge port toward the interior of the vehicle, the present invention is not limited to the above, but can be applied to the discharge port of the home air conditioner, for example.

As described above, according to claim 1 of the present invention, one side of the cog wheels provided in the interlocking connection portion between the manual operation member and the damper is divided in the axial direction and slightly shifted in pitch so as to be coaxially mounted and to have a resilience force. It is possible to easily remove the backlash of the cog wheels by being made of two parts coupled to the relative displacement in the circumferential direction.

Further, according to claim 2, it is possible to minimize the change in the friction angle between the long hole and the pin when the wing plate is tilted by optimally setting the angle of the long hole in which the pin protruding from the wing plate is engaged.

Moreover, according to Claim 3, the shaking of the wing plate which cooperates with a manual operation member can be suitably removed by the rotation resistance provision means provided in the rotation center axis of a manual operation member.

Claims (3)

A device for controlling an air discharge port having a plurality of wing plates connected to each other by an interlocking member and a damper provided in an air passage and a manual operation member for tilting and driving the wing plate and the damper, Gear means engaged with the interlocking connection portion of the manual operation member and the damper is provided, and one side of these gear means is segmented with respect to the axial direction and is provided coaxially with a slight shift in pitch, and also provides elasticity. A device for adjusting the air discharge port, characterized in that consisting of two parts coupled to the relative displacement in the circumferential direction. A device for controlling an air discharge port having a plurality of wing plates connected to each other by an interlocking member and a damper provided in an air passage and a manual operation member for tilting and driving the wing plate and the damper, Between the plurality of wing plates and the interlocking member on a straight line connecting the axial pin protruding at a position deviating from the center of rotation of the wing plate and the midpoint of the turning range of the pin and the inclined movement center of the wing plate. An air discharge port adjusting device, characterized in that connected in a long hole in which the long axis is placed on a parallel line. A device for controlling an air discharge port having a plurality of wing plates connected to each other by an interlocking member and a damper provided in an air passage and a manual operation member for tilting and driving the wing plate and the damper, Adjusting device of the air discharge port, characterized in that the rotational resistance providing means is provided on the rotational central axis of the manual operation member.