JP4095846B2 - Wind direction adjustment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wind direction adjusting device disposed at a blowout port of a case, and particularly provides a wind direction adjusting device that can further increase the degree of shielding in a fully closed state by a louver of a blowout port.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a car or the like equipped with an air conditioner has been provided with a case with an air outlet directed toward the inside of the vehicle, such as an instrument panel. The air outlet of this case is provided with a wind direction adjusting device that adjusts the wind direction (refer to Japanese Patent Laid-Open No. 2001-158226 for a similar technique).
[0003]
This type of wind direction adjusting device has a structure in which a plurality of louvers that are openable and closable around an axial pin formed at one end are arranged in parallel at the air outlet, and one of the louvers located at the end is used as a reference louver. The reference louver is opened and closed. The operating force applied to the reference louver is transmitted to other louvers via the link. When the reference louver is operated in the closing direction, the other louvers are linked together to obtain a fully closed state in which the outlet is shielded. When the operation is performed in the opening direction, an open state in which the reference louver and the other louvers face the air blowing direction is obtained.
[0004]
In the fully closed state, the other end portion of the louver comes into contact with one end portion of the adjacent louver from the inside of the air outlet and blocks the air passage in the case. For this reason, if a completely fully closed state is obtained, an air damper that shuts off the air is not necessary, so that the number of parts and assembly man-hours can be reduced.
[0005]
[Problems to be solved by the invention]
However, in such a conventional technique, the fully closed state of the air outlet is simply a structure in which the other end portion of the louver is brought into contact with one end portion of the adjacent louver. Due to a dimensional error, a dimensional change of the louver due to a temperature change after assembly, or the like, the other end portion of the louver may not completely contact one end portion of the adjacent louver, and a gap may be generated.
[0006]
This invention is made paying attention to such a prior art, and provides the wind direction adjustment apparatus which can obtain the more completely closed state of a blower outlet.
[0007]
[Means for Solving the Problems]
First aspect of the present invention, the outlet mouth wall of the case which is formed into a hollow shape by a synthetic resin, together with by forming a plurality of axial holes in the lowermost shaft hole and the lowermost shaft hole from the second of Ri Na to form between shaft hole except the pitch up shaft hole at an equal pitch (C), the lowermost position of the air outlet of the case, the with placing a single reference louvers molded of a synthetic resin A shaft pin formed at one end on the edge side of the case in the shaft hole is rotatably inserted into the shaft hole and supported at a position excluding a reference louver disposed at the lowermost end of the air outlet of the case. Is formed by arranging a plurality of other louvers that are also molded from synthetic resin, and the cross-sectional shapes of the reference louver and the other louvers are such that the one end side is along the case and the other end side enters the other louver. It has a crank shape that overlaps with the reference louver and other Bar actuation pin formed on the respective other end, Ri Na rotatably inserted pivotally supported to the operation hole formed at a predetermined pitch links disposed along the longitudinal direction of the air outlet, said reference louvers the by operating, by allowing transmission to other louver via link the operation force of the reference louver, the other end of each reference louvers and other le over bar at one end of the adjacent louvers a fully closed state for shielding the air outlet in the stacked state, the reference louvers and other le over bar as the open state to open the outlet of both louvers in a state towards outlet direction of the air is obtained In the wind direction adjusting device, the pitch (A) between the operation holes in the link is set smaller than the pitch (B) between the line connecting the shaft pins in the reference louver and the operation pin (B>). A) So, the standard louver Before Mekiru, the other end of each reference louvers and a plurality of other louvers, the other end end After contact previously at one end of a plurality of adjacent other louvers by a resin between slides, the reference operating force of closing the louver, the other end of each reference louvers and a plurality of other louvers, characterized by being configured to act as a force for pressing the one end portion of a plurality of adjacent other louvers.
[0008]
According to the first aspect of the present invention, the pitch (B) relating to the rotation of the reference louver having the cross-sectional crank shape formed from the synthetic resin is related to the rotation of the other louver having the cross-sectional crank shape formed from the synthetic resin. Since the pitch (A) is set to be smaller, the other end of the other louver comes first to one end of the adjacent louver before the reference louver is completely closed. Therefore, the operation force for closing the reference louver thereafter acts as a force for pressing the other end portion of the other louver against one end portion of the adjacent louver, and the other end portion slides between the one end portions, so that the reference louver and / or Even if there are some dimensional errors in the other louvers, the gap is not generated between the louvers because they are pressed.
[0009]
The invention according to claim 2 is characterized in that a stopper means is provided between the reference louver or link and the inner wall of the air outlet for holding the rotation position of the reference louver in the fully closed state with a predetermined force. To do.
[0010]
According to the second aspect of the present invention, the reference louver closed to the fully closed state is held by the stopper means in the fully closed state, and continues to exert a pressing force on the other louvers. Can withstand wind pressure.
[0011]
The invention according to claim 3 is characterized in that the other end portion of the louver is bent in a crank shape and the surface of the louver in the fully closed state is a continuous surface.
[0012]
According to the invention described in claim 3, since the other end portion of the louver is bent in a crank shape, the surface of the louver in the fully closed state becomes a continuous surface, and the design effect is enhanced.
[0013]
According to a fourth aspect of the present invention, the air outlet is curved in the longitudinal direction, and the operation hole formed in the link is gradually air from the other end in the longitudinal direction toward the one end except for the operation hole related to the reference louver. It is a long hole whose length in the blowing direction becomes longer.
[0014]
According to the fourth aspect of the present invention, even when the blowout port of the case is curved, the amount of movement of the operating pin of each louver is substantially the same, so that each louver is substantially the same in the open state of the blowout port. A parallel wind can be blown out in the direction.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
[0016]
1 to 7 are views showing a first embodiment of the present invention. The case 1 has a rectangular tube shape having a long cross section in the vertical direction (longitudinal direction), and is installed on the right side of an unillustrated instrument panel of the automobile (a different case is installed on the left side). The case 1 has a blower outlet 2 having a shape curved in the vertical direction on the inner side of the vehicle, and a cover 3 is attached around the blower outlet 2.
[0017]
Inside the case 1, a louver 4 in the vertical direction as shown in FIG. 2 is provided. The louver 4 is rotatable left and right around the upper and lower fulcrum 5 and changes the air blowing direction to the left and right. A shaft 6 is provided on the back side of the louver 4, and the shaft 6 is engaged with a part of the operation dial 7 exposed from the cover 3. Therefore, the louver 4 can be rotated left and right by rotating the operation dial 7.
[0018]
And 7 pieces of louvers 8 and 9 in the horizontal direction are arranged in parallel in the blower outlet 2 along the up-and-down direction. Each louver 8 and 9 is formed of a synthetic resin, and a shaft pin 10 that protrudes in the left-right direction (width direction) is formed at one end 8a and 9a. The other end portions 8b and 9b of the louvers 8 and 9 are bent in a crank shape toward the inner side of the air outlet 2 (except for the uppermost louver 9).
[0019]
As shown in FIG. 4, a stopper pin 11 is formed in a state protruding to the right side at a position close to the right end of the other end portion 8 b of the louver 8. Furthermore, the operating pin 12 is formed in a state protruding to the left side at a position corresponding to the left end of the other end portions 8b, 9b of the louvers 8, 9.
[0020]
Of the seven louvers 8 and 9, the lowermost one is the reference louver 8, and the operation portion 13 is formed at one end 8 a of the reference louver 8.
[0021]
Spacers 14 and 15 along the cover 3 are formed on the left and right sides of the inner wall of the air outlet 2 of the case 1 as shown in FIG . Seven axial holes 16 are formed in the spacers 14 and 15 along the longitudinal direction thereof. The shaft pins 10 of the louvers 8 and 9 are inserted into the shaft holes 16 so that the louvers 8 and 9 are rotatably attached around the shaft pins 10. 2, 3, 5, 6, and the like are views from the side of the spacer 15, but the louvers 8, 9 are illustrated on the front side in order to make the relationship with the louvers 8, 9 easier to understand. Yes.
[0022]
As shown in FIG. 4, the pitch (C) between the shaft holes 16 in the vertical direction is an equal pitch except for the pitch from the lowermost shaft hole 16 to the second shaft hole . A line connecting the pivot pin 10 between the reference louver 8 pitch between the actuating pin 12 (B) and the pitch from the lowermost end of the shaft hole 16 to the second shaft hole, Ri substantially equal der, each louver 8, By rotating 9, the other end portions 8 b and 9 b of the louvers 8 and 9 are just overlapped with the one end portion 9 a of the adjacent louver 9 from the inside of the air outlet 2.
[0023]
As shown in FIG. 4, a recess 17 is formed between the lowermost shaft hole 16 in the right spacer 15 and the shaft hole 16 thereabove, and an elastic piece 18 is formed on one side of the recess 17. ing. The tip 19 of the elastic piece 18 is slightly away from the bottom of the recess 17. The stopper pin 11 of the reference louver 8 is engaged in the recess 17, and the stopper means 20 (see FIGS. 5 and 6) of this embodiment is formed by the stopper pin 11 and the elastic piece 18. The stopper means 20 can be held not only by an elastic force but also by a frictional force.
[0024]
Between the left side of the louvers 8 and 9 and the spacer 14, a link 22 having seven working holes 21 along the longitudinal direction is provided. The operation pins 21 of the louvers 8 and 9 are inserted into the operation holes 21 so that the seven louvers 8 and 9 rotate in conjunction with each other. The operating hole 21 of the link 22 is a long hole that gradually increases in length in the air blowing direction from the upper side except for the lowest part related to the reference louver 8, The length in the air blowing direction may gradually increase from the side toward the upper side. As shown in FIG. 4, the pitch (A) between the operating holes 21 in the link 22 is an equal pitch excluding the lowest and the lowest to second pitches, and the shaft pin in the reference louver 8. It is set smaller than the pitch (B) between the line connecting the 10 and the operating pin 12 (B> A).
[0025]
Next, the operation will be described. When opening the louvers 8 and 9, the operation unit 13 of the lowermost reference louver 8 is lifted by hand. Then, the reference louver 8 rotates around the shaft pin 10, and the other end portion 8b of the reference louver 8 is lowered and opened. When the other end portion 8b of the reference louver 8 is lowered, the link 22 downward via the operating pin 12, through the operation hole 21 to rotate also communicates dynamic other louvers 9, all louvers 8 and 9 are opened It becomes a state.
[0026]
Moreover, even if the outlet 2 is curved in the vertical direction, since the operating hole 21 of the link 22 is a long hole as described above, the movement amount of the operating pin 12 of each louver 9 is substantially the same, In the open state of the blower outlet 2, each louver 9 will be in the state which faced the substantially the same direction. Therefore, parallel wind can be blown out from the open outlet 2 toward the inside of the vehicle.
[0027]
When the louvers 8 and 9 are closed, the operation unit 13 of the reference louver 8 is lowered by hand. Then, the reference louver 8 rotates around the shaft pin 10, and the other end portion 8b of the reference louver 8 is raised and closed. When the other end portion 8b of the reference louver 8 is increased, the link 22 via the actuating pin 12 upward, through the operation hole 21 to rotate also communicates dynamic other louvers 9, all louvers 8 and 9 are closed Fully closed state.
[0028]
In particular, when the louvers 8 and 9 are closed, the pitch (A) related to the rotation of the other louver 9 is set smaller than the pitch (B) related to the rotation of the reference louver 8. Before the reference louver 8 is completely closed, the other end 9b of the other louver 9 comes into contact with the one end 9a of the adjacent louver 9.
[0029]
Accordingly, the operation force for closing the reference louver 8 thereafter acts as a force for pressing the other end 9b of the other louver 9 against the one end 9a of the adjacent louver 9, and is somewhat applied to the reference louver 8 and / or the other louver 9. Even if there is a dimensional error , a gap between the reference louver 8 and another louver 9 and a gap between the louvers 9 do not occur. The reference louver 8 closed to the fully closed position is held in its fully closed state by the stopper pin 11 engaging with the tip 19 of the elastic piece 18 in the recess 17, and the other louvers 9. It is possible to continue to exert a pressing force against.
[0030]
When the louvers 8 and 9 are to be opened again, when the operating portion 13 of the reference louver 8 is moved upward, the stopper pin 11 gets over the tip 19 of the elastic piece 18 and the reference louver 8 is in the fully closed position. The holding state is released.
[0031]
Furthermore, in this embodiment, since the other end portions 8b and 9b of the louvers 8 and 9 are bent in a crank shape, the surface of the louvers 8 and 9 in the fully closed state becomes a continuous surface and looks good.
[0032]
FIG. 8 is a diagram showing a second embodiment of the present invention. In this embodiment, the link 23 is arranged on the right side of the reference louver 24 and other louvers (not shown). Operation hole 25 of the link 23 is circular, not in the long hole as in the previous embodiment. The pitch (A) between the operating holes 25 of the link 23 and other dimensional relationships are the same as in the previous embodiment.
[0033]
The stopper pin 26 is not formed on the reference louver 24 but is formed at a position corresponding to the link 23. The right spacer 27 is formed with an arc-shaped cutout 28 into which the stopper pin 26 of the link 23 is movably inserted, and a protrusion 29 capable of elastic deformation is provided inside the cutout 28. Accordingly, the fully closed position of the reference louver 24 is maintained by engaging the stopper pin 26 of the link 23 with the protrusion 29 in the notch 28. Further, in this embodiment, since the operation hole 25 of the link 23 is not a long hole, the louver 24 and the like have a diffusion angle opened up and down in the open state, and the diffused air is blown out from the air outlet in the open state toward the inside of the vehicle. be able to. Other configurations and functions and effects are the same as those of the previous embodiment, and common portions are denoted by the same reference numerals, and redundant description is omitted.
[0034]
In each of the above-described embodiments, the cover 3 and the spacers 14 and 15 have an arc shape that protrudes to the rear side of the vehicle as a whole. However, the present invention is not limited to this, and the entire shape is concave. It may be formed.
[0035]
【The invention's effect】
According to the present invention, since the pitch (A) related to the rotation of the other louver is set smaller than the pitch (B) related to the rotation of the reference louver, before the reference louver is completely closed. In addition, the other end of the other louver comes first to one end of the adjacent louver. Therefore, the operation force for closing the reference louver thereafter acts as a force for pressing the other end of the other louver against one end of the adjacent louver, and even if there is some dimensional error in the reference louver and / or other louvers , Since it is in the pressed state, no gap is generated between the louvers.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a wind direction adjusting device according to a first embodiment of the invention.
FIG. 2 is a cross-sectional view showing a wind direction adjusting device in a fully closed state.
FIG. 3 is a cross-sectional view showing the wind direction adjusting device in an open state.
FIG. 4 is a perspective view showing a reference louver, a link, and a spacer.
FIG. 5 is an enlarged view showing the stopper means in the open state.
FIG. 6 is an enlarged view showing the stopper means in the fully closed state.
FIG. 7 is a side view showing a louver in a fully closed state.
FIG. 8 is a perspective view showing a reference louver, a link, and a spacer according to a second embodiment of the invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case 2 Air outlet 8, 24 Reference | standard louver 9 Other louver 8a, 9a One end part 8b, 9b The other end part 10 Axis pin 11, 26 Stopper pin 12 Actuation pin 14, 15, 27 Spacer (inner wall)
16 axial hole 20 stop means 21 and 25 pitch between the pitch C shaft hole of the pitch B reference louver pivot pin between the operation hole 22 links A working hole to the actuating pin

Claims (4)

Axis The outlet mouth wall of the case which is formed in a hollow shape, except for the pitch with by forming a plurality of axial holes from the shaft hole of the shaft hole and the lowermost end of the lowermost to the second axial hole of a synthetic resin Ri Na form a foramen at an equal pitch (C),
A single reference louver formed of synthetic resin is disposed at the lowermost position of the air outlet of the case, and a shaft pin formed at one end of the shaft hole on the edge side of the case is rotated to the shaft hole. The insertion shaft is supported freely,
In the position excluding the reference louver arranged at the lowermost end of the outlet of the case, a plurality of other louvers that are also molded from synthetic resin are arranged,
The cross-sectional shape of the reference louver and the other louver has a crank shape in which the one end side extends along the case and the other end enters the inside of the other louver and overlaps the one end.
An operating pin formed at the other end of each of the reference louver and the other louver is rotatably inserted into an operating hole formed at a predetermined pitch in a link arranged along the longitudinal direction of the air outlet. Do Ri,
Wherein by operating the reference louvers, by allowing transmission to other louver via link the operation force of the reference louvers, respectively reference louvers and other le over Bas other end portion of the adjacent louvers fully closed state and open state and the reference louver and other Le so as to obtain for opening the outlet of both louvers in a state towards delivery direction of the air shielding the air outlet in a state superimposed on the end portion A wind direction adjusting device comprising a plurality of bars,
Before the reference louver is completely closed, the pitch (A) between the operation holes in the link is set smaller than the pitch (B) between the line connecting the shaft pins in the reference louver and the operation pin (B> A). The other end of each of the reference louver and the plurality of other louvers comes into contact with one end of the other plurality of adjacent louvers, and then the other end of the other louver slides between the ends so that the reference louver is closed. A wind direction adjusting device characterized in that a force acts as a force pressing the other end of each of the reference louver and the plurality of other louvers against one end of a plurality of adjacent other louvers. The wind direction adjusting device according to claim 1,
A wind direction adjusting device characterized in that a stopper means is provided between the reference louver or link and the inner wall of the air outlet to hold the rotation position of the reference louver in the fully closed state with a predetermined force. The wind direction adjusting device according to claim 1 or 2,
A wind direction adjusting device, wherein the other end portion of the louver is bent in a crank shape, and the surface of the louver in a fully closed state is a continuous surface. The wind direction adjusting device according to any one of claims 1 to 3, wherein the air outlet is curved in the longitudinal direction, and the operation hole formed in the link excluding the operation hole related to the reference louver, A wind direction adjusting device, characterized in that it is a long hole whose length in the air blowing direction gradually increases from the other end in the longitudinal direction toward the one end.

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