JP2005247185A - Wind direction adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind direction adjusting device capable of reducing overall flow resistance and obtaining spot wind having directivity. <P>SOLUTION: A wind controlling element 3 is shaped in a dome, so that a remaining portion covering the whole circumference does not exist at a top portion, and overall ventilating resistance is reduced. Though a flow resistance plate 8 exists, it does not cover the whole circumference, so that the flow resistance is not increased much. An air flow ripped by the flow resistance plate 8 and divided into two is merged from both sides to an air flow passing on a tip end side of the ventilating resistance plate 8, and suppresses diffusion, so that the spot wind having directivity can be obtained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wind direction adjusting device, and more particularly to a wind direction adjusting device suitable for air blowing control of a vehicle air conditioner.

A ventilation duct extending from the air conditioner is arranged inside an interior panel such as a pillar trim of the vehicle. A wind direction control body that is rotatable along the circumferential direction is provided in a part of the wall portion that forms the ventilation duct so as to penetrate the interior panel and protrude toward the vehicle interior side. The wind direction control body has a cylindrical shape having a top surface, and an air outlet is formed on the cylindrical side surface. The air flowing through the ventilation duct enters the wind direction control body from the ventilation duct and is blown out from the air outlet of the wind direction control body to the vehicle interior side. Therefore, the direction (wind direction) of the air blown out from the outlet can be adjusted by rotating the wind direction control body (for example, Patent Document 1).
JP-A-7-18679

  However, in such a conventional technique, since the wind direction control body has a cylindrical shape having a top surface, a portion corresponding to a corner portion between the top surface and the side surface is an air retaining portion over the entire circumference of the top surface. It becomes. Therefore, the flow of air in the wind direction control body is not smooth, and the ventilation resistance in the wind direction control body increases. Further, since the air is simply pushed out from the outlet by the blowing pressure in the ventilation duct, it becomes diffused air, and the wind direction control effect by rotating the wind direction control body is reduced.

  The present invention has been made paying attention to such a conventional technique, and provides a wind direction adjusting device that can reduce the overall ventilation resistance and obtain a spot wind having directivity.

  According to the first aspect of the present invention, a dome-shaped wind direction control body that is rotatable along the circumferential direction is provided in a part of the wall portion that forms the ventilation duct in a state of protruding from the ventilation duct, An air outlet is formed on a part of the side surface in the circumferential direction, and a ventilation resistance plate is formed from the base end portion of the air outlet or the vicinity of the base end portion toward the central portion of the wind direction control body.

  The invention according to claim 2 is characterized in that the ventilation resistance plate is inclined to the ventilation direction side rather than the right angle to the rotation center axis of the wind direction control body.

  The invention described in claim 3 is characterized in that the ventilation resistance plate is curved toward the ventilation direction.

  The invention according to claim 4 is characterized in that the ventilation resistance plate is formed by cutting and raising a part of the side surface of the airflow direction control body from the base end portion of the air outlet.

  The invention as set forth in claim 5 is characterized in that the wind direction control body is protected by a cover having a breathable structure formed on an adjacent vehicle body interior panel.

  According to the first aspect of the present invention, since the wind direction control body is a dome shape, there is no staying portion over the entire circumference at the top, and air flows smoothly along the inner surface of the wind direction control body. Therefore, the overall ventilation resistance in the wind direction control body is reduced. Although some ventilation resistance plates exist, they do not extend all around, so the ventilation resistance does not increase significantly. And the air which flows through a wind direction control body is divided into three types by presence of this ventilation resistance board. There are a center wind that flows on the front end side of the ventilation resistance plate and two side winds that are cut by the ventilation resistance plate and flow on both sides of the ventilation resistance plate. The center wind tries to blow out from the wind direction control body vigorously along the inner surface of the wind direction control body, and the side wind merges with the center wind so as to wrap around from both sides along the inner surface of the wind direction control body, thereby suppressing the diffusion of the center wind. To do. Therefore, a directional spot wind in which one center wind and two side winds merge is blown out from the outlet of the wind direction control body, and the wind direction adjustment effect by rotating the wind direction control body is improved.

  According to the second aspect of the present invention, since the ventilation resistance plate is inclined to the ventilation direction side rather than the right angle with respect to the rotation center axis of the wind direction control body, an increase in the ventilation resistance due to the ventilation resistance plate is suppressed. can do.

  According to the invention described in claim 3, since the ventilation resistance plate is curved toward the ventilation direction, it is possible to further suppress an increase in the ventilation resistance due to the ventilation resistance plate.

  According to the fourth aspect of the present invention, since the ventilation resistance plate is formed by cutting and raising a part of the side surface of the airflow direction control body from the base end portion of the air outlet, the formation of the ventilation resistance plate is easy.

  According to the fifth aspect of the present invention, since the wind direction control body is protected by the cover having a breathable structure, it is safe to form the wind direction control body in a state of projecting to the vehicle interior side.

  For the purpose of providing a wind direction adjusting device capable of reducing the overall ventilation resistance and obtaining a directional spot wind, it is freely rotatable along the circumferential direction on a part of the wall portion forming the ventilation duct. A dome-shaped wind direction control body is provided in a state of projecting from the ventilation duct, and a blow-out opening is formed on a part of the side surface in the circumferential direction of the wind direction control body. Realized by forming a ventilation resistance plate toward the center of the control body. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 are views showing a first embodiment of the present invention. Reference numeral 1 in FIG. 1 indicates a front pillar trim 1 as an interior panel that covers a front pillar of an automobile. The front pillar trim 1 is shown in a horizontal state in order to make the structure easy to understand (the front is the lower side and the tip is the upper side).

  Inside the front pillar trim 1, a ventilation duct 2 through which air from a well-known air conditioner (not shown) flows is arranged. The ventilation duct 2 is formed in a rectangular cross section by two members. A dome-shaped wind direction control body 3 that is rotatable along the circumferential direction passes through the general surface of the front pillar trim 1 in a part of the wall portion that forms the front pillar trim 1 side of the ventilation duct 2. It is provided in a state protruding to the vehicle interior side.

  The front pillar trim 1 is formed with a cover 4 that covers the wind direction control body 3. The cover 4 is similarly dome-shaped and has a frame structure that allows ventilation. The front pillar trim 1 and the ventilation duct 2 are coupled to each other by engaging a caulking portion 6 formed from the front pillar trim 1 with a flange 5 formed in a part of the ventilation duct 2.

  An air outlet 7 is formed on a part of the side surface of the air direction control body 3 in the circumferential direction. A ventilation resistance plate 8 is formed from the base end of the air outlet 7 toward the center of the air outlet 7. The ventilation resistance plate 8 is formed by folding the side portion of the wind direction control body 3 cut out to form the air outlet 7 to the inner side of the wind direction control body 3 in an almost intact state, and is easy to form. The ventilation resistance plate 8 itself is a straight plate, and has an angle θ slightly inclined toward the ventilation direction rather than perpendicular to the rotation center axis S of the airflow direction control body 3.

  A key 9 protrudes from the top of the wind direction control body 3 through which the rotation center axis S passes, and engagement holes 10 are formed on both sides thereof. The knob 11 is engaged with the key 9 from the top of the cover 4, and a pair of claws 12 formed on the knob 11 are engaged with the engagement hole 10. Therefore, by turning the knob 11, only the wind direction control body 3 inside the cover 4 can be freely rotated in the circumferential direction. Even if the wind direction control body 3 with the air outlet 7 opened is rotated in a state protruding from the vehicle interior side, it is safe because it is protected by the cover 4.

  Next, how air flows from the air outlet 7 of the wind direction control body 3 will be described. Air from the air conditioner flowing through the ventilation duct 2 enters the wind direction control body 3 by the blowing pressure. The air that has entered the wind direction control body 3 basically passes through the cover 4 from the air outlet 7 along the inner surface of the wind direction control body 3 because the wind direction control body 3 has a dome shape. Blown out. Since the wind direction control body 3 is a dome shape, there is no staying portion over the entire circumference at the top, air flows smoothly along the inner surface of the wind direction control body 3, and the air is blown out in a state of less ventilation resistance than before. Can do.

  Although the airflow resistance plate 8 exists in a part, it does not extend over the entire circumference, so that the airflow resistance is not large. In addition, since the ventilation resistance plate 8 is at an angle θ that is inclined more to the ventilation direction side than the right angle with respect to the rotation center axis S of the wind direction control body 3, the ventilation resistance due to the ventilation resistance plate 8 is less likely to occur. It has become.

  Moreover, the air blown out from the air outlet 7 becomes a directional spot wind A, and is surely directed in the direction in which the wind direction control body 3 is rotated by the knob 11. This is because the air sent from the ventilation duct 2 into the wind direction control body 3 is divided into three types depending on the presence of the ventilation resistance plate 8 (see FIG. 4). There are a center wind A1 that flows on the front end side of the ventilation resistance plate 8 and two side winds A2 that are cut by the ventilation resistance plate 8 and flow on both sides of the ventilation resistance plate 8. The center wind A1 tries to blow out from the wind direction control body 3 along the inner surface of the wind direction control body 3, and the side wind A2 merges with the center wind A1 so as to go around from both sides along the inner surface of the wind direction control body 3, Suppresses diffusion of the center wind A1. Therefore, a directional spot wind A in which one center wind A1 and two side winds A2 merge is blown out from the air outlet 7 of the wind direction control body 3, and the wind direction adjustment effect by rotating the wind direction control body 3 is blown out. Will improve.

  5 and 6 are views showing a second embodiment of the present invention. Portions common to the first embodiment are denoted by the same reference numerals, and redundant description is omitted. The cover 14 formed on the front pillar trim 13 of the second embodiment has a porous structure instead of the frame structure as in the first embodiment. In either case, the structure remains breathable.

  Further, as a means for rotating the wind direction control body 15, a dial 17 in which the operation unit 16 is exposed at a part of the front pillar trim 13 is used. Therefore, nothing is present at the tops of the wind direction control body 15 and the cover 14, and the design is neat. The dial 17 is rotatably supported by a cylindrical shaft 18 formed on the front pillar trim 13, and a gear 19 formed on the side opposite to the operation portion 16 is integrated with the wind direction control body 15 protruding from the side surface of the ventilation duct 2. Is engaged with the gear 20. Therefore, by rotating the operation unit 16 of the dial 17, the wind direction control body 15 can be rotated and the wind direction can be adjusted.

  Further, the ventilation resistance plate 21 of the second embodiment is not only inclined at the ventilation direction side but also curved at the ventilation direction side. Therefore, an increase in ventilation resistance due to the ventilation resistance plate 21 can be further suppressed.

  In each of the above-described embodiments, the wind direction adjusting device disposed close to the interior panel of the automobile is taken as an example. Moreover, although the example which formed the wind direction control body in the perfect circle in planar view was taken as an example, it is not limited to this, What was formed in the ellipse may be sufficient.

1 is a partially broken perspective view showing a wind direction adjusting apparatus according to a first embodiment of the present invention. The perspective view which shows the wind direction control body of FIG. Sectional drawing of the wind direction adjustment apparatus in the position of the blower outlet of FIG. Sectional drawing of the wind direction adjustment apparatus in positions other than the blower outlet of FIG. The partially broken perspective view which shows the wind direction adjustment apparatus which concerns on 2nd Example of this invention. Sectional drawing equivalent to FIG. 4 which shows 2nd Example of this invention.

Explanation of symbols

1,13 Front pillar trim (interior panel)
2 Ventilation duct 3, 15 Air direction control body 4, 14 Cover 7 Air outlet 8, 21 Ventilation resistance plate S Rotation center axis A Spot air A1 Center air A2 Side air

Claims (5)

A part of the wall forming the ventilation duct is provided with a dome-shaped wind direction control body that is rotatable along the circumferential direction in a state of protruding from the ventilation duct,
The air outlet is formed on a part of the side surface in the circumferential direction of the wind direction control body, and the ventilation resistance plate is formed from the base end portion of the air outlet or the vicinity of the base end toward the center of the wind direction control body. A wind direction adjusting device characterized. The wind direction adjusting device according to claim 1,
The airflow direction adjusting device is characterized in that the airflow resistance plate is inclined to the airflow direction side rather than a right angle with respect to the rotation center axis of the airflow direction control body. The wind direction adjusting device according to claim 2,
A wind direction adjusting device, wherein the ventilation resistance plate is curved toward the ventilation direction. It is a wind direction adjustment apparatus of any one of Claims 1-3,
A wind direction adjusting device, wherein the ventilation resistance plate is formed by cutting and raising a part of the side surface of the wind direction control body from the base end portion of the air outlet. It is a wind direction adjustment apparatus of any one of Claims 1-4,
The wind direction adjusting device is characterized in that the wind direction control body is protected by a cover having a breathable structure formed on an adjacent vehicle interior panel.

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