JP2004034776A - Resistor for regulating air blow-off - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resistor for regulating air blow-off with a simple structure for excellently changing the air direction in a wide angular range by improving the air directivity when regulating a rear movable louver. <P>SOLUTION: Auxiliary fins 5 and 7 are turnably and pivotably supported by a terminating part on the upstream side of vertical end part fins 41t of a rear movable louver 4 via a connection part with rotary shafts 51 and 71 parallel to a rotary shaft 42 of the vertical end part fins 41t as supporting points. Cam parts 52 and 72 are provided on the rotary shafts 51 and 71 of the auxiliary fins 5 and 7, and fixed shafts 22 and 24 protruded from inner surfaces of retainers are engaged with the cam parts 52 and 72. When the vertical end part fins 41t are directed to an end part side of an air passage 21, the direction of the auxiliary fins 5 and 7 is changed so as to close the passage adjacent to the vertical end part fins 41t. When the vertical end part fins 41t are directed to a counter-end part side, the direction of the auxiliary fins 5 and 7 is set to be the same as that of the vertical end part fins 41t. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air outlet adjustment register used for an air outlet for ventilation or air conditioning in an automobile or the like, and in particular, a front movable louver and a rear movable louver are provided in a ventilation path, and a rear movable louver is provided at a wide angle. The present invention relates to an air blowing adjustment register capable of changing the direction of wind with good directivity when performing an adjustment operation in a range.
[0002]
[Prior art]
Conventionally, as a register for this type of air blowing adjustment, a horizontally movable louver and a vertically movable louver are disposed in front and behind in a retainer forming a ventilation path, and a fin in a central portion of a horizontally movable louver located in front is provided with: An operation knob is movably mounted, and an air outlet adjustment register that can adjust the wind direction up, down, left and right by changing the vertical angle of the horizontal movable louver by operating the operation knob, and changing the left and right angle of the vertical movable louver (For example, see Japanese Utility Model Laid-Open No. 4-82645).
[0003]
Since the vertical movable louver located behind the ventilation path of this type of air blowing adjustment register is located at the back of the ventilation path, the angle of the movable louver is largely changed in the left and right direction, and the wind direction is set in a wide angle range. If it is adjusted to change, the wind flowing along both side walls of the ventilation path can be blocked by adjusting the inclination of the fins at both ends, but the wind blown from the vicinity of the left and right end fins of the vertical movable louver adjusted to a wide angle In this case, a phenomenon occurs in which the fin hits the side wall of the ventilation path in front of the end fin and is bent in the front direction.
[0004]
For this reason, when the vertical movable louver is swung right and left and adjusted so that the wind direction largely changes left and right within a wide angle range, the wind that has passed near the end fins and hits the side wall of the ventilation path and is bent in the front direction In order to change the wind direction to the right or left and return the blown air in the central part to the front side, the adjustment angle of the wind direction adjusted in a wide angle range to the left and right by the vertical movable louver becomes narrow, and the wide angle There was a problem that it was difficult to change the wind direction in the range.
[0005]
[Problems to be solved by the invention]
In view of this, the present inventors have proposed an air blowing adjustment register that can change the wind direction in a wide angle range even when adjusting the angle of the movable louver in a wide angle range, according to Japanese Patent Application Laid-Open No. 2000-335235. This register attaches the shut fin to the end fin of the back movable louver located behind the ventilation path so that the angle can be adjusted, and rotates the shut fin on the axis of the shut fin in a direction to close the passage of the end fin. A structure provided with a plurality of link mechanisms was employed.
[0006]
However, when the angle of the end fin is changed in a wide angle range, the back movable louver of the conventional register closes the passage near the end fin by changing the angle of the shut fin, and the front fin is moved forward by the end fin. Although the wind blown out can be stopped and the direction of the wind blowout can be changed to a wide angle, the shut fin has a structure in which the area for blocking the flow path of the wind is limited, and a link mechanism for changing the angle is used. However, there is a problem that the structure is complicated, the number of parts is large, and the assembling work is also complicated.
[0007]
The present invention has been made in view of the above points, and has a simple structure, improves the directivity of wind when adjusting the direction of the rear movable louver, and can change the wind direction satisfactorily over a wide angle range. An object of the present invention is to provide an air blowing adjustment register.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, an air blowing adjustment register according to claim 1 of the present invention comprises:
A front movable louver and a rear movable louver are disposed one after another in an air passage provided in the retainer, and a plurality of fins are disposed on each of the front movable louver and the rear movable louver so that the angle can be adjusted. In an air blowing adjustment register for adjusting the air blowing direction by changing the angle of each fin of the rear movable louver, an auxiliary fin is provided at the upstream end of the end fin of the rear movable louver via a connecting portion. A fixed shaft which is rotatably supported on a rotation axis parallel to the rotation axis of the outer fin, is provided with a cam portion on the rotation shaft of the auxiliary fin, and is provided on the cam portion on the inner surface of the retainer. When the end fins are oriented in the direction of the ventilation axis of the ventilation path, the auxiliary fins are oriented in the same direction as the end fins, and the end fins face the end side of the ventilation path. The auxiliary fin so that it blocks the passage adjacent to the end fin. For example, the end fins when facing the counter-end portion side of the air passage, the direction of the auxiliary fins as the same as the direction of the end portion fins, characterized in that the cam surface is formed.
[0009]
Here, as the connecting portion for connecting the end fin and the auxiliary fin, bearing portions are formed at both ends of the upstream end portion of the end fin, and the bearing portions are provided at both ends of the auxiliary fin. Can be configured by providing a rotating shaft that is axially supported. Further, as in claim 3, a deformed hole is formed in a cam portion provided on the rotation shaft of the auxiliary fin, a cam surface is formed on an inner peripheral surface of the deformed hole, and a fixed shaft is provided in the deformed hole. It can be configured to insert and engage.
[0010]
[Action]
When changing the direction of the wind to swing left and right or up and down in a wide angle range, the air blowing adjustment register having such a configuration changes the direction of the rear movable louver to that direction. At this time, each fin of the rear movable louver turns around its rotation axis as a fulcrum to change its direction. At this time, the auxiliary fin provided at the end fin located at the end of the fin has a cam portion. When the end fin is directed straight in the direction of the ventilation axis of the ventilation path by the action of the fixed shaft and the fixed shaft, the direction of the auxiliary fin is the same as the direction of the end fin. On the other hand, when the end fin faces the end of the ventilation path, the direction of the auxiliary fin is changed so as to close the passage adjacent to the end fin, and when the end fin faces the opposite end of the ventilation path, Move so that the direction of the auxiliary fin is the same as the direction of the end fin.
[0011]
Thereby, when the end fin is swung toward the end of the ventilation path, the auxiliary fin operates so as to close the passage adjacent to the end fin, so that the wind is bent to the front side against the wall surface of the ventilation path, that is, There is no wind that deteriorates the directivity of the wind that has been shaken toward the end of the ventilation path, and the direction of the wind when the rear movable louver is swung over a wide angle range is improved, and the direction of the wind is favorably widened. Can vary over a range.
[0012]
Further, since the auxiliary fin is rotatably supported on a rotation axis parallel to the rotation axis of the end fin via the connecting portion, the auxiliary fin is as large as the end fin. When the rear movable fin is swung right and left or up and down greatly, the passage adjacent to the end fin is securely closed, blocking the wind in the front direction and changing the wind direction over a wide angle range. be able to.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an air blowing adjustment register, FIG. 2 is a II-II sectional view thereof, and FIG. 3 is a III-III partial sectional view thereof. The retainer 2 of the register is formed in a rectangular duct shape, has an air passage 21 formed therein, and an air outlet is formed at a front portion of the air passage 21. Inside the ventilation path 21, a front movable louver 3 in the horizontal direction is attached to the front part thereof so that the angle can be adjusted, and a rear movable louver 4 in the vertical direction is attached to the rear part so that the angle can be adjusted.
[0014]
The front movable louver 3 is configured by arranging a plurality of horizontal fins 31 so as to be rotatable at regular intervals, and connecting them by a link 34. On both sides of each horizontal fin 31, a rotation shaft 32 is protruded, and the rotation shaft 32 is rotatably fitted to a bearing provided on a side wall of the retainer 2. Further, a link member having a biasing shaft (not shown) is connected to the tip of one rotation shaft 32 of each horizontal fin 31, and the biasing shafts are mutually connected by a link bar 34 to form a link mechanism. The link member and the link bar 34 are arranged outside the retainer 2. An operation knob 5 is slidably fitted and mounted on the horizontal fin 31 at the center of the front movable louver 3, and the front movable louver 3 changes its direction up and down by turning the operation knob 6 up and down. . The distal end of the operation knob 6 is engaged with the front edge of a vertical fin of the rear movable louver 4 described later, and the left and right sliding of the operation knob 6 causes the rear movable louver 4 to change its direction from side to side.
[0015]
The rear movable louver 4 is configured by arranging a plurality of vertical fins 41 so as to be rotatable at predetermined intervals and interconnecting them with a link bar 44. Rotation shafts 42 project from upper and lower portions of each vertical fin 41, and the rotation shafts 42 are rotatably fitted to vertical bearing portions provided on the upper and lower portions of the retainer 2. Further, connecting shafts 43 project from the upper portions of the vertical fins 41, and the connecting shafts 43 are mutually connected by link bars 44. The front end of the operation knob 6 is engaged with the front portion of the central vertical fin 41, and the left and right sliding of the operation knob 6 causes each vertical fin 41 of the rear movable louver 4 to rotate about a rotation shaft 42 as a fulcrum. Turn the direction left or right.
[0016]
As shown in FIGS. 3 to 5, auxiliary fins 5 and 7 are rotatably connected to the rear end of the vertical fin 41 t of the vertical fin 41 of the rear movable louver 4, as shown in FIGS. . That is, as shown in FIG. 4, bearing portions 45 are formed on the upper and lower ends of the upstream end of the vertical end fins 41t at both ends of the vertical fin 41, and the auxiliary fins 5, 7 are provided on the upper and lower bearing portions 45. Rotating shafts 51 and 71 projecting from the upper and lower portions of the are fitted and supported. The auxiliary fins 5 and 7 provided at both ends can rotate around the rotation shafts 51 and 71 as fulcrums, that is, around the rotation axis parallel to the rotation axis of the vertical end fin 41t. . The auxiliary fins 5 and 7 are connected via bearing portions 45 protruding from the upper and lower portions of the vertical end fin 41t and rotating shafts 51 and 71 protruding from the upper and lower portions of the auxiliary fins 5 and 7. Because of the structure, the auxiliary fins 5 and 7 can be formed as large as the vertical end fins 41.
[0017]
Further, a cam portion 52 is integrally fixed or formed on a rotating shaft 51 below the auxiliary fin 5 on the left side as viewed from the front. The cam portion 52 has a deformed hole, a cam surface 52a is formed on the inner peripheral surface of the deformed hole, and a fixed shaft projecting upward from the bottom of the ventilation passage 21, that is, the inside of the bottom of the retainer 2, in the deformed hole. 22 engage. Further, a cam portion 72 is similarly fixed or formed integrally with the rotating shaft 71 below the auxiliary fin 7 on the right side. Similarly, a cam hole 72 is formed in the cam portion 72, a cam surface 72 a is formed on the inner peripheral surface of the cam hole 72, and a fixed portion projecting from the bottom of the ventilation passage 21, that is, the bottom of the retainer 2, is formed in the cam hole 72. The shaft 24 engages.
[0018]
The left and right cam portions 52 and the cam portions 72 are formed symmetrically to the left and right, and as shown in FIGS. 6 and 7, the vertical end fins 41t at the left and right ends of the rear movable louver 4 have the same shape and the same rotation axis. When the vertical fin 41 and the vertical end fin 41t are swung rightward from the front as shown in FIG. 6, the right auxiliary fin 7 passes between the adjacent vertical fins as shown in FIG. And the cam surface 52a of the cam portion 52 and the cam surface 72a of the cam portion 72 are formed so that the left auxiliary fin 5 faces in the same direction as the vertical end fin 41t.
[0019]
On the other hand, as shown in FIG. 7, when the rear movable louver 4 swings the vertical fins and the vertical end fins 41t to the left as viewed from the front, the left auxiliary fins 5 similarly pass between the adjacent vertical fins. The cam surface 52a of the cam portion 52 and the cam surface 72a of the cam portion 72 are formed so that the right auxiliary fin 7 faces the same direction as the vertical end fin 41.
[0020]
That is, as shown in FIG. 2, when the vertical fins 41 including the vertical end fins 41 t are directed straight in the direction of the ventilation axis of the ventilation path 21, the directions of the auxiliary fins 5 and 7 are the same as those of the end fins 41. On the other hand, as shown in FIG. 6, when the right vertical end fin 41 t faces the end of the ventilation path 21, the direction of the auxiliary fin 7 is changed so as to close the passage adjacent to the vertical end fin 41 t. . Also, as shown in FIG. 7, when the left vertical end fin 41t faces the end of the ventilation path 21, the direction of the auxiliary fin 5 is changed so as to close the passage adjacent to the vertical end fin 41t. . Also, when facing the other end side of the ventilation path, that is, the center side, like the vertical end fin 41t on the right side, the direction of the auxiliary fin 7 is the same as the direction of the vertical fin 41.
[0021]
The air blowing adjustment register having the above-described configuration is mounted on an instrument panel or a dashboard in a vehicle such that the rear portion of the retainer 2 is connected to a ventilation duct (not shown). The air sent from the ventilation duct is blown from the ventilation path 21 in the retainer 2 through the air outlet on the front surface.
[0022]
When adjusting the blowing direction of air upward or downward, the operating knob 6 is rotated upward or downward to perform adjustment. When the operation knob 6 is turned up and down, the horizontal fins 31 of the front movable louver 3 are turned up and down around the turning shaft 32, whereby the vertical fin 31 is turned in the vertical direction. The air blowing direction is adjusted up and down by changing around 32.
[0023]
On the other hand, when adjusting the air blowing direction to the left or right, the adjustment is made by moving the operation knob 6 to the left or right. When the user moves the operating knob 6 to the left or right, the tip of the operating knob 6 engages with the vertical fin 41 at the center of the rear movable louver 4, and the vertical fin 41 rotates about its rotating shaft 42. Then, all the vertical fins 41 including the vertical end fins 41t linked by the link bar 44 rotate right and left, and the left and right directions are rotated and adjusted within a predetermined angle range.
[0024]
At this time, the auxiliary fins 5, 7 connected to the rear portions of the vertical end fins 41t located at both ends of the rear movable louver 4 are fixed to the lower cam portions 52, 72 and the bottom of the retainer 2 so as to project therefrom. By acting on the shafts 22 and 24, when the vertical end fin 41t is swung toward the end portion (opposite to the center side) of the ventilation path 2, it operates so as to close the passage between the adjacent fins.
[0025]
That is, for example, as shown in FIG. 6, when the vertical fin 41 and the vertical end fin 41t are swung rightward from the front, the right auxiliary fin 7 blocks the passage between the adjacent vertical fins and the left The auxiliary fin 5 operates so as to face the same direction as the vertical end fin 41t. Thereby, when the vertical movable louver 4 is swung to the right side, the passage at the right end is closed, so that the angle-adjusted wind is blown only from the passage between the central vertical fins 41 as shown in FIG. The air is blown with good directivity without being disturbed by the wind directed in the front direction. Therefore, the wind can be satisfactorily sent in the direction in which the vertical fins 41 of the vertically movable louver 4 are directed, and the blowing direction can be favorably adjusted over a wide angle range.
[0026]
On the other hand, for example, as shown in FIG. 7, when the vertical fin 41 and the vertical end fin 41t are swung leftward from the front, the left auxiliary fins 5 block the passage between the adjacent vertical fins and the right The auxiliary fin 7 operates so as to face the same direction as the vertical end fin 41t. Thereby, when the vertical movable louver 4 is swung to the left side, the wind at an angle adjusted from only the passage between the central vertical fins 41 is blown as shown in FIG. 7 to block the passage at the left end. Similarly to the above, the air is blown with good directivity without being disturbed by the wind directed in the front direction.
[0027]
As described above, when the rear movable louver 4 is largely swung right and left, when the vertical end fin 41t is directed to the end side (opposite to the center side) of the ventilation passage 21, a passage adjacent to the vertical end fin 41t is formed. Since the auxiliary fins 5 and 7 operate so as to close, the wind bent toward the front side on the wall surface of the ventilation path 21 is not generated, and the directivity of the wind is not deteriorated. For this reason, when the rear movable louver 4 is adjusted in a wide angle range, the wind direction can be changed to an arbitrary direction while improving the directivity of the wind.
[0028]
In the above embodiment, the horizontal fins 31 are provided on the front movable louver 3 and the vertical fins 41 are provided on the rear movable louver 4. However, they are rotated by 90 degrees, and the vertical fins are provided on the front movable louver. The rear movable louver may be provided with a horizontal fin. In addition, the relationship between the bearing portions 45 connecting the vertical fins 41 and the auxiliary fins 5 and 7 and the rotation shafts 51 and 71 can be configured to be opposite to each other.
[0029]
【The invention's effect】
As described above, according to the air blowing adjustment register of the present invention, when the direction of the rear movable louver is largely shaken and the end fin is swung toward the end of the ventilation path, the end fin is adjacent to the end fin. Since the auxiliary fins operate so as to close the passage, the wind that is bent toward the front side against the wall surface of the ventilation path is not generated, and the deterioration of the directivity of the wind can be prevented. Therefore, there is no directivity disturbance that returns the direction of the wind bent by the rear movable louver to the front side, and when the wind direction is operated so as to swing in a wide angle range, the wind direction is favorably widened. Can be changed in the angle range.
[0030]
In addition, since the auxiliary fin has a structure that operates by engagement between the cam portion provided on the rotating shaft and the fixed shaft, the structure can be relatively simplified and the size can be reduced, and the assembling work can be easily performed. Can do it. Further, since the auxiliary fin is rotatably supported on a rotation axis parallel to the rotation axis of the end fin via the connecting portion, the auxiliary fin is as large as the end fin. When the rear movable fin is largely swung right and left or up and down, the passage adjacent to the end fin can be reliably closed, and the directivity of the wind can be greatly improved.
[Brief description of the drawings]
FIG. 1 is a front view of an air blowing adjustment register according to an embodiment of the present invention.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a sectional view taken along the line III-III of FIG. 1;
FIG. 4 is an exploded perspective view of a vertical end fin 41t and an auxiliary fin 5;
FIG. 5 is an assembled perspective view of a vertical end fin 41t and an auxiliary fin 5;
6 is a cross-sectional view corresponding to FIG. 2 when the rear movable louver 4 is swung rightward.
FIG. 7 is a cross-sectional view corresponding to FIG. 2 when the rear movable louver 4 is swung leftward.
[Explanation of symbols]
2-Retainer 3-Front movable louver 4-Rear movable louver 5, 7-Auxiliary fin 21-Ventilation path 22, 24-Fixed shaft 41-Vertical fin 42-Rotating shaft 45-Bearing 51, 71-Rotating shaft 52 , 72-cam portion 52a, 72a-cam surface

Claims (3)

A front movable louver and a rear movable louver are disposed one behind the other in an air passage provided in the retainer, and a plurality of fins are arranged on each of the front movable louver and the rear movable louver so as to be adjustable in angle. In the air blowing adjustment register for adjusting the air blowing direction by changing the angle of each fin of the louver and the rear movable louver,
At the upstream end of the end fin of the rear movable louver, an auxiliary fin is pivotally supported via a connecting portion so as to be rotatable around a rotation axis parallel to the rotation axis of the end fin, A cam portion is provided on the rotation shaft of the auxiliary fin, and a fixed shaft protruding from the inner surface of the retainer is engaged with the cam portion. The end fin is connected to the cam portion by a ventilation shaft of a ventilation path. Direction, the auxiliary fins are oriented in the same direction as the end fins, and when the end fins are directed toward the end of the ventilation path, the auxiliary fins close the passage adjacent to the end fins. And the cam surface is formed so that the direction of the auxiliary fin is the same as the direction of the end fin when the end fin faces the opposite end of the ventilation path. And an air blowing adjustment register. As a connecting portion for connecting the end fin and the auxiliary fin, bearing portions are formed at both ends of an upstream end portion of the end fin, and a rotating shaft supported at both ends of the auxiliary fin by the bearing portion. 2. The register for adjusting air blowing according to claim 1, wherein a register is provided. A deformed hole is formed in a cam portion provided on a rotation shaft of the auxiliary fin, a cam surface is formed on an inner peripheral surface of the deformed hole, and the fixed shaft enters and engages in the deformed hole. The register for adjusting air blowing according to claim 1, wherein:

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