JP3507950B2 - Vehicle wind direction adjusting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wind direction adjusting device with reduced operating force. [0002] Conventional vehicles such as automobiles have air outlets for blowing air conditioned by an air conditioner into a room.
A wind direction adjusting device for adjusting the wind direction is provided. As this kind of wind direction adjusting device, for example, one disclosed in Japanese Patent Application Laid-Open No. 11-70814 is known. The wind direction adjusting device of the above publication is provided with a knob for adjusting the wind direction. When this knob is rotated, a pin protruding from the locking lever is guided by a second guide groove formed in the knob, As a result, the locking lever is rotated. A substantially V-shaped guide groove is formed on one end side of the locking lever, and a pin protruding from a bracket for opening and closing the louver is fitted into this guide groove, and the locking lever is rotated. Thus, since the bracket is moved upward, the plurality of louvers linked by the bracket are simultaneously rotated so that the blowing direction of the air blown out from the air blowing port can be adjusted. Further, a substantially L-shaped third guide groove is formed on the other end side of the locking lever, and a pin protruding from the air damper is inserted into the third guide groove, and the locking lever Along with the rotation, the air damper is rotated in the opening direction from the closed position, and the air damper is held in the open position when the air direction is adjusted by the louver so as not to be a resistance of the air flowing through the housing. However, like the wind direction adjusting device of the above publication, a pin protruding from the bracket is fitted into a guide groove formed on one end side of the locking lever.
In addition, the pin protruding from the air damper is fitted to the third guide groove formed on the other end side, and the pin protruding from the locking lever is fitted to the second guide groove formed on the knob. The operating force transmitted from the knob to the locking lever is divided in two, and the louver and air damper are operated by the divided force. Therefore, the operating force cannot be effectively transmitted to the louver and air damper. Since a large frictional force is generated between them, the air damper can be opened and closed,
There was a problem that a large operating force was required to adjust the wind direction and the operability was poor. The present invention has been made to improve the conventional problems, and it is an object of the present invention to provide a wind direction adjustment position for a vehicle that allows the wind direction to be adjusted with a small operating force and to improve operability. It is what. In order to achieve the above object,
In the vehicle wind direction adjusting device according to the present invention, a plurality of louvers connected to each other by a link are provided at a curved air outlet formed on one end side of a cylindrical case having both ends open, and the louver is openable. When the air outlet is fully closed, each louver is stored along the curvature of the air outlet, the middle part is rotatably supported on the outer surface of the case, and one end is connected to the operation dial via a gear. An interlocking rotation link is provided, and a link is provided in the case.
The rotating link is engaged with each other by the engaging means through a long hole opened in the side surface of the case, and a substantially L-shaped guide groove is formed on the other end side of the rotating link. A pin protruding from the tip of a lever that opens and closes a shut valve provided in the opening on the other end side of the case is inserted into the guide groove , and the engaging means is further rotated.
Projecting on one of the link or link and passing through the slot
Formed on the other side of the rotating link or link
And a pin hole into which the tip of the operating pin is inserted.
At the same time, the long hole opened on the side of the case
In the entire movement range of the link provided so as to be in sliding contact with the inner surface of
It is designed to be closed by the link . With the above construction, when the operation dial is rotated to adjust the wind direction by the louver, the rotation link is rotated via the gear, so that the operation force can be reliably transmitted to the rotation link. Because the sliding contact between the guide groove and the pin can be reduced compared to the conventional one, the loss of the operation force due to the friction between the guide groove and the pin is reduced, which makes it possible to open and close the louver and the shut valve with a small operation force. Therefore, the operability can be improved. With the above-described structure, the rigidity of the case may be reduced because the rotation link on the outer side of the case and the link on the inner side of the case can be interlocked only by forming a small long hole on the side surface of the case. In addition, since the operation pin and the pin hole can be integrally formed with the rotation link and the link, the engaging means can be obtained easily and inexpensively. With the above structure, even if the operation dial is rotated to adjust the wind direction, the long hole opened on the side surface of the case is always closed by the link. Will not leak. The first embodiment of the present invention will be described in detail with reference to the drawings shown in FIGS. 1 to 6. FIG. FIG. 1 is a perspective view of a wind direction adjusting device showing a first embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a transverse sectional view thereof, and FIGS. is there. In these drawings, reference numeral 1 denotes a case. The case 1 has an air outlet 2 that is curved in the vertical direction, and is provided in an instrument panel (not shown) of an automobile. is set up. The case 1 is formed in a substantially box shape as shown in FIGS. 1 and 2, and a plurality of shaft holes 1a are vertically arranged on both sides of the air outlet 2 along the curve of the air outlet 2. Pins 3a projecting from both ends of the louver 3 are rotatably supported in the shaft hole 1a. A plurality of the louvers 3 are provided, and when each louver 3 is stored in the fully closed position around the pin 3a,
The width dimension and the length dimension are set so that the air outlet 2 can be closed by each louver 3, and pins 3 c are protruded on the rear surface of one end side of the louver 3. 1 is rotatably inserted into a pin hole 4a of a link 4 accommodated in 1. As shown in FIG. The link 4 is formed in a substantially half-moon shape as shown in FIG. 4, and a semicircular projection 4c is formed on an arcuate portion 4b formed with substantially the same curvature as the curved shape of the air outlet 2. It protrudes at substantially equal intervals in the vertical direction. A pin hole 4a is formed at the center of the projection 4c. Of these pin holes 4a, the pin hole 4a located at the uppermost stage is formed in a perfect circle as a reference hole.
The remaining pin holes 4a are formed into long holes that are successively longer in the front-rear direction as going to the lower side. The pin 3c formed in the bracket 3b of the louver 3 has a pin hole 4 formed in the link 4.
a is inserted and air outlet 2 by louver 3
Each louver 3 is held by a link 4 so that each louver 3 faces the same direction when fully opened. Further, a semicircular protruding portion 4d is provided on the linear portion side of the link 4 at a substantially central portion in the vertical direction.
A pin hole 4e is formed at a substantially central position of the protruding portion 4d, and an operating pin 6a protruding from one end side of a rotation link 6 described later is fitted into the pin hole 4e. The tip of the guide pin 4 f that protrudes from the lower end side of the link 4 is fitted into an arc-shaped long hole 1 d formed on the side surface of the case 1. The operation dial 5 is pivotally supported on a support shaft 1b projecting from one outer surface of the case 1, and is locked by a fixing tool 9 such as a screw so as not to come off. At the center of the outer surface of the operation dial 5, a cylindrical gear 5c having teeth on substantially the outer circumference is formed integrally with the operation dial 5, and the rotary link 6 is connected to the gear 5c. A substantially fan-shaped gear 6b formed on one end side of the gear is engaged. An operating pin 6a protrudes from one end of the rotary link 6, and this operating pin 6a protrudes into the case 1 through an arc-shaped elongated hole 1c formed in the side surface of the case 1. The pin hole 4e of the link 4 accommodated in the case 1
And the long hole 1c and the long hole 1d.
Is closed by a link 4 provided in the case 1 so as to be in sliding contact with the inner surface of the case 1, as shown in FIG.
Air does not leak from the long holes 1c and 1d. [0030] position near the gear 6b side of the pivot link 6 have been formed a cylindrical portion 6 c, is pivoted support member 7 formed approximately dish fitted into the cylindrical portion 6c ing. The rotation support member 7 has a shaft portion 7a,
A mounting hole 6h formed in the pivot link 6 in the shaft portion 7a.
Is rotatably supported, and a fixing tool 8 such as a screw inserted so as to penetrate the central portion of the rotation support member 7.
Is pivotally attached to the case 1 via a rotation support member 7 by being screwed into a boss 1 f protruding from the outer surface of the case 1. The other end of the pivot link 6 extends along the outer surface of the case 1 to the rear side of the case 1 and is linked to a shut valve 10 provided in the rear portion of the case 1 so as to be openable and closable. . The shut valve 10 shuts off the air flowing through the case 1 and is formed of a rectangular plate substantially equal to the cross-sectional shape of the case 1, and a seal member 10c is provided around the periphery. It is attached over. At the center of rotation of the shut valve 10, a support shaft 10a is integrally formed at one end and a cylindrical portion 10b is integrally formed at the other end. The support shaft 10a is inserted into a shaft hole 1g formed on the side surface of the case 1 so as to be rotatable from the inside of the case 1. The cylindrical portion 10b is provided outside the case 1. The shaft portion 11a of the lever 11 is fitted so as not to rotate. The lever 11 is formed in an approximately egg shape, and the shaft portion 11a projecting from one end is rotatably supported in a shaft hole 1h formed in the side surface of the case 1.
The tip of the pin 11b projecting from the other end is connected to the rotation link 6
Is inserted into a substantially inverted L-shaped guide groove 6c formed on the other end side. The guide groove 6c includes an arc-shaped long groove portion 6d centered on the rotation center axis O of the rotation link 6, and the long groove portion 6c.
When the pin 11b of the lever 11 is in the long groove portion 6d, the shut valve 10 is held in a substantially horizontal fully open position, and the pin 11b is When guided from the long groove portion 6d to the short groove portion 6e, the pin 11 is connected to the outer edge 6f of the short groove portion 6e.
When b is pushed, the lever 11 is rotated, whereby the shut valve 10 is rotated to the fully closed position where it is substantially vertical. In FIG. 3, reference numeral 14 denotes a vertical louver provided behind the louver 3 for adjusting the air direction in the left-right direction of the air blown from the outlet. Next, the operation of the wind direction adjusting apparatus according to the first embodiment constructed as described above will be described with reference to the drawings shown in FIGS. In the fully closed state of the louver 3 shown in FIG. 4, the shut valve 10 is also in the fully closed position in the case 1, and the seal member 10 c provided around is in close contact with the inner peripheral surface of the case 1. Therefore, the air supplied from the air conditioner (not shown) into the rear end of the case 1 through the duct is blocked by the shut valve 10 and is not blown out from the air outlet 2. When the operation dial 5 is rotated counterclockwise in FIG. 4 to open the louver 3 from this state, the link 4 is shown in FIG. , So that each louver 3 is pin 3
Rotating counterclockwise about a, the louver 3 is opened, and a gear 5c provided on the operation dial 5
The rotation link 6 in which the one end side gear 6 b is engaged with the rotation support member 7 is rotated clockwise about the shaft portion 7 a of the rotation support member 7. As a result, the pin 11b of the lever 11 is pushed upward by being guided by the short groove portion 6e of the guide groove 6c provided on the other end side of the rotation link 6, so that the lever 11 rotates counterclockwise. The lever 11 is moved
When the shut valve 10 connected to is pivoted about the support shaft 10a and the pin 11b of the lever 11 reaches the upper end of the long groove portion 11d, the shut valve 10 is held in a substantially horizontal fully open position. When the operation dial 5 is further rotated from this state, the link 4 is further lowered, and each louver 3 is shown in FIG.
As shown in FIG. 5, the tip portion is rotated obliquely upward, and the rotation link 6 is further rotated in the clockwise direction.
Since the lever 11 is not rotated only by moving in, the shut valve 10 is continuously held in the fully opened state. As a result, the angle of the louver 3 is changed,
Even if the operation dial 5 is rotated to adjust the air direction of the air blown out from the air blowing port 2, the angle of the louver 3 is changed, but the shut valve 10 is maintained in the fully opened state and flows through the case 1. Therefore, the air direction of the air blown out from the air outlet 2 by the louver 3 can be adjusted without being adversely affected by the air distribution performance by the shut valve 10. On the other hand, when the air outlet 2 is closed by the louver 3, the operation dial 5 is rotated in the clockwise direction. As a result, the rotation link 6 is rotated counterclockwise and the link 4 is moved upward, contrary to the opening, so that each louver 3 rotates clockwise around the pin 3a. The air outlet 2 is moved as shown in FIG.
The pin 11b of the lever 11 that has been moved upward in the long groove portion 6d of the guide groove 6c with the rotation of the rotation link 6 reaches the short groove portion 6e.
The lever 11 is pressed downward by the outer peripheral edge 6f.
Is rotated in the clockwise direction, and the shut valve 10 that has been fully opened up to now is rotated to the fully closed position.
In order to block the air supplied to reach the air blowing port 2, the air blown out from the air blowing port 2 can be completely blocked even if there are some gaps between the louvers 3. On the other hand, FIGS. 7 to 11 show a second embodiment of the present invention, which will be described next. The same parts as those in the second embodiment are designated by the same reference numerals, and the description thereof is omitted. The second embodiment is different from the first embodiment in that the link 4 is provided outside the case 1 and that the shut valve 10 is not provided in the case 1. That is, as shown in FIG. 9, the link 4 is formed in a substantially T shape by a vertical side 4h and a horizontal side 4i, and is placed outside the case 1 so as to be in sliding contact with the outer side surface of one side plate of the case 1. Is provided. The side plate of the case 1 is formed with arc-shaped long holes 1j for each louver 3, and a pin 3c projecting from one end of the louver 3 is projected to the outside of the case 1 through these long holes 1j. The tip of each pin 3c is the vertical side 4 of the link 4
The pin hole 4a formed in h is fitted. A plate-like support member 14 is provided on the outer side of the case 1 so as to be substantially parallel to the side surface, and the support shaft 14a protruding from the outer surface of the support member 14 has a substantially half-moon shape. The operation dial 5 is rotatably supported and is locked by a fixing tool 9 such as a screw so as not to come off. The center axis O of the support shaft 1 is inclined at an angle θ with respect to the rotation center axis O1 of the louver 3 as shown in FIG. 10, and thereby the operation dial 5 supported on the support shaft 14a. The rotation center axis O is also inclined, and a cylindrical gear 5c having teeth on almost the outer circumference of the operation dial 5 is formed integrally with the operation dial 5 at the center of the outer surface of the operation dial 5. A substantially fan-shaped gear 6b formed on one end side of the rotation link 6 is engaged with the gear 5c. An operating pin 6a protrudes from one end side of the rotation link 6, and this operating pin 6a passes through an arc-shaped long hole 14b formed in the support member 14 to support the support member 14.
And is inserted into a long hole-shaped pin hole 4 e formed at the tip of the horizontal portion 4 i of the link 4 accommodated between the support member 14 and the case 1, and is attached to the side plate of the case 1. The formed long hole 1j is closed as shown in FIG. 11 by a link 4 provided so as to be in sliding contact with the outer surface of the case 1, so that air does not leak from the long hole 1j. A cylindrical portion 6g is formed on the other end side of the rotation link 6, and a rotation support member 7 formed in a substantially dish shape is fitted to the cylindrical portion 6g. The rotation support member 7 has a shaft portion 7a,
A mounting hole 6h formed in the pivot link 6 in the shaft portion 7a.
Is rotatably supported, and a fixing tool 8 such as a screw inserted so as to penetrate the central portion of the rotation support member 7.
The rotation link 6 is rotatably attached to the support member 14 via the rotation support member 7 by being screwed into a boss 14 c protruding from the outer surface of the support member 14. Next, the operation of the wind direction adjusting device according to the second embodiment will be described. In order to adjust the wind direction of the air blown out from the air outlet, an operation dial is used as in the first embodiment. 5 is rotated. As a result, the rotation link 6 is rotated by the gear 5 c provided on the operation dial 5, and the operation pin 6 a protruding from the rotation link 6 is connected to the horizontal side 4 i of the link 4.
The vertical side 4 of the link 4 is used to turn the tip up and down.
The pin 3c of the louver 3 engaged with h is a long hole 1 of the case 1.
The angle of each louver 3 is varied by being moved along j, and thereby the wind direction is adjusted. Further, in the second embodiment, the rotation center axis O of the operation dial 5 is inclined at an angle θ in advance with respect to the rotation center axis O1 of the louver 3 in order to match the surrounding design. However, the operating pin 6 projecting from the rotating link 6
By fitting a into a long hole-shaped pin hole 4e formed on the horizontal side 6i of the link 4, the rotation center axis O1 of the louver 3 is obtained.
Since the angle difference between the rotation center axis O of the operation dial 5 is absorbed, there is no problem in operation. As described in detail above, the present invention is provided with a rotation link in which an intermediate portion is rotatably supported by a case and one end side is linked to an operation dial via a gear. Provide a link in the case, between the rotating link and the link,
Engage with each other by the engaging means through a long hole opened in the side of the case, and at the other end side of the rotation link,
A letter-shaped guide groove is formed, and a pin protruding from the tip of the lever that opens and closes the shut valve provided at the opening on the other end of the case is inserted into this guide groove, so the wind direction is adjusted by the louver. If you rotate the operation dial as much as possible,
Since the rotation link is rotated via the gear, the operation force can be reliably transmitted to the rotation link and the guide groove and the pin can be slidably contacted less than the conventional one. The loss of operating force due to the friction between the groove and the pin is reduced, and the louver and the shut valve can be opened and closed with a small operating force, thereby improving operability. Further, since the long hole opened on the side surface of the case is closed by a link provided so as to be in sliding contact with the inner side surface of the case, the case can be operated even if the operation dial is rotated to adjust the wind direction. Since the long hole opened on the side of the case is always closed by the link, the air in the case does not leak from the long hole, so that the air supplied to the case is wasted. Absent. . Furthermore, a support member provided on the outer side of the case is rotatably supported at its intermediate portion and one end is linked to the operation dial via a gear. A link is provided between the support members, and the rotation link and the link are engaged with each other by the engaging means through a long hole opened in the support member. Because the louver can be rotated with the operation dial even if the rotation center axis is not parallel, the operation dial can be tilted according to the surrounding design where the wind direction adjusting device is installed. Greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle wind direction adjusting apparatus according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the vehicle wind direction adjusting device according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view of the vehicle wind direction adjusting apparatus according to the first embodiment of the present invention. FIG. 4 is an operation explanatory view of the vehicle wind direction adjusting device according to the first embodiment of the present invention. FIG. 5 is an operation explanatory view of the vehicle wind direction adjusting device according to the first embodiment of the present invention. FIG. 6 is an operation explanatory view of the vehicle wind direction adjusting device according to the first embodiment of the present invention. FIG. 7 is a perspective view of the vehicle wind direction adjusting device according to the second embodiment of the present invention when the louver is closed. FIG. 8 is a perspective view of the vehicle wind direction adjusting device according to the second embodiment of the present invention when the louver is opened. FIG. 9 is an exploded perspective view of a vehicle wind direction adjusting device according to a second embodiment of the present invention. FIG. 10 is a front view of a vehicle wind direction adjusting device according to a second embodiment of the present invention. 11 is a cross-sectional view taken along line AA in FIG. [Description of Symbols] 1 Case 1c Long hole 2 Air blowout port 3 Louver 4 Link 5 Operation dial 5c Gear 6 Rotating link 6a Actuation pin 6b Gear 6c Guide groove 10 Shut valve 11 Lever 11b Pin 14 Support member 14b Long hole

Continued from the front page (56) References JP-A-11-70814 (JP, A) JP-A 2000-168351 (JP, A) JP-A 2000-283543 (JP, A) JP-A-10-272921 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 13/15 B60H 1/34 F24F 13/14

Claims (1)

(57) [Claims] [Claim 1] A plurality of louvers connected to each other by a link are provided at a curved air outlet formed on one end side of a cylindrical case having both ends open, and can be opened and closed. And when the air outlet is fully closed by the louver, the louvers are stored along the curve of the air outlet, and between the louver and the link, when the air outlet is fully opened, the louvers The vehicle wind direction adjusting device is connected by a link so as to be directed in the same direction, and the intermediate portion is rotatably supported on the outer side surface of the case, and the one end side is linked to the operation dial via a gear. Provide a link,
Further, the link is provided in the case, and the rotation link and the link are engaged with each other by an engagement means through a long hole opened in a side surface of the case, and the rotation link the other end, substantially form an L-shaped guide groove in the guide groove, and fitted with pins projecting from the front end of the lever for opening and closing the shutoff valve provided in the other end side opening of the case Further comprising the engaging hand
A step protrudes from one of the rotating link or the link.
And an operating pin penetrating the elongated hole, and the rotating ring
Or the other of the links and the operating pin
And the front end of the pin
The long hole opened on the side of the case is connected to the case.
Full range of movement of the link provided to slidably contact the inner surface
The vehicle wind direction adjusting device is characterized in that it is closed by the link .