JP2003276428A - Register for adjusting air blow-out - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a register for adjusting air blow-out that can adjust the direction of air blow-out suitably with appropriate operation load, having an operation knob with simple structure, small numbered parts and no looseness. <P>SOLUTION: An operation knob 6 is composed of a knob body 61 covering the front portion of a fin 31 of a front movable louver 3 and a knob rear portion 62 fitted to the rear portion of the knob body 61, having an engaging portion on its back and covering the rear portion of the fin 31. A guide groove 33 having a triangle shape in section is formed on the rear portion of the fin 31 along the longitudinal direction, and a triangle engaging portion 70 engaging with the guide groove 33 is provided projectedly inside of the knob rear portion 62. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air outlet adjusting register used for an air outlet for ventilation or air conditioning of a vehicle interior, and more particularly, it is arranged in a ventilation passage in mutually orthogonal directions and in front and rear directions. The present invention relates to an air-blowing adjustment register that adjusts the directions of the front movable louver and the rear movable louver by using one operation knob.

[0002]

2. Description of the Related Art Conventionally, as this type of air blowing adjustment register, a horizontally movable louver and a vertically movable louver are arranged in front and rear in a bezel forming an air passage, and the center of the horizontally movable louver located in front of the bezel. There is known an air blowout adjusting register in which an operation knob (handle) is movably attached to a fin of the section (for example, see Japanese Utility Model Laid-Open No. 4-82645).

In this conventional air-blowing adjustment register, the operation knob is fitted on the fin at the central portion of the laterally movable louver so as to be slidable in the axial direction (lateral direction), and the laterally movable louver. It is provided so that it can be rotated up and down together with the fins of
An engaging portion is formed at the tip of the operation knob, and the engaging portion engages with the longitudinal axis of the fin of the vertically movable louver located at the rear side (the axis deviated from the rotation axis of the fin). Then, when adjusting the wind direction to the left or right, slide the operation knob left or right on the fins of the horizontal movable louver to change the direction of the vertical movable louver after that to the left or right, and adjust the wind direction up or down. If you do
The direction of the wind is adjusted by rotating the operation knob together with the fins of the laterally movable louver up or down.

[0004]

However, the operation knob of the conventional air blow-out adjusting register of this kind is provided with a knob body of the knob body in order to prevent rattling and give an appropriate operation load when sliding in the lateral direction. The arm portion is provided so as to project on both sides of the rear portion, and a spring member for pressing the arm portion against the laterally movable louver is provided at the rear portion of the knob body. This complicates the structure of the operation knob, increases the number of parts, and exposes it to the rear part of the knob body.Therefore, especially when the operation knob is operated to be lowered, the arm portion and the spring member are not registered. There was a problem that the appearance of the register deteriorated because it was visible from the front.

The present invention has been made in view of the above points. The structure of the operation knob is simple, the number of parts is small, the operation knob does not rattle, and the air blowing direction is good with an appropriate operation load. It is an object of the present invention to provide an air outlet adjustment register that can be adjusted to

[0006]

In order to achieve the above object, the air blowout adjusting register of the present invention is provided with a front movable louver and a rear movable louver in an air passage, and is operated by a fin of the front movable louver. The knob is slidably fitted to the outside, and the engaging portion formed on the back side of the operation knob engages with the rear movable louver located at the rear, and the fins of the front movable louver and the rear movable louver are operated by operating the operation knob. In the air-blowing adjustment register that adjusts the air-blowing direction by rotating, the operation knob includes a knob body that covers the front portion of the fin of the front movable louver and a rear portion of the fin that is fitted to the rear portion of the knob body. And a rear portion of the knob that has an engaging portion on the back surface, and a guide groove with a triangular cross section is formed along the longitudinal direction on the rear surface of the fin, and a triangular engaging portion that engages with the guide groove is formed on the rear portion of the knob. It is characterized by being projected inside.

Here, a ridge is formed on the front portion of the fin of the front movable louver, and a guide portion that engages with the ridge and guides its sliding is provided inside the knob body of the operation knob. it can.

[0008]

In the air-blowing adjustment register having such a structure, when the operation knob is rocked on the fins, the fins of the front movable louver rotate and change their directions to change the direction of the air flow in the ventilation passage. Is adjusted according to the operation rotation angle of the operation knob. Also, when the operation knob is slid on the fin of the front movable louver, the operation knob slides on the fin, and the rear portion of the knob is linked to the fin of the rear movable louver on the rear side through the engaging portion on the back side. As a result, each fin of the rear movable louver is rotated, its direction is changed, and the direction of the air flow in the ventilation passage is adjusted according to the sliding operation width of the operation knob.

When the operation knob is swung or slid on the fin, a portion inside the knob body contacts so as to push the front portion of the fin, and the triangular engaging portion on the rear portion of the knob is attached to the rear portion of the fin. Since the operation knob operates well by engaging with the guide groove with a triangular cross section of, the operation knob does not interfere strongly with the fins or rattling, especially when the operation knob slides on the fin. The proper sliding resistance between the portion of the fin and the front part of the fin and the engagement of the guide groove of the fin with the triangular engaging part at the rear part of the knob allow the operating knob to slide well with an appropriate operating load. it can.

For example, in the case of a structure in which a nipping portion is provided at the rear part of the knob and the nipping portion guides the rear part of the fin, the nipping portion may be bitten due to deformation and variation in dimensions during molding of the nipping portion. However, if the guide groove with a triangular cross section and the triangular engaging part are engaged in sliding guides, deformation during molding is less likely to occur, and some dimensional error may occur in the guide groove and triangular engaging part. In the case of occurrence of, the operation knob can be operated well without rattling or biting. Further, since the guide groove formed on the back surface of the fin is hard to be visually recognized from the front, good appearance can be secured without deteriorating the appearance.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the air outlet adjusting register, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is a transverse sectional view thereof, and FIG. 4 is an enlarged sectional view of an operating knob thereof. In these drawings, reference numeral 1 denotes a bezel having an air outlet 11 formed on the front surface, and a fitting portion for connecting to a retainer 2 to be described later is provided inside the bezel 1 (rear side), and the fitting portion is provided. The retainer 2 is fitted and connected to.
Bearing holes for horizontal fins are formed at predetermined intervals on the left and right sidewalls inside the air outlet 11 of the bezel 1.
A damper knob opening is formed on the left side of the front surface of the damper knob 53, and the damper knob 53 is disposed there.

The retainer 2 is formed in a substantially rectangular duct shape and has an air passage 21 formed therein, and bearing holes for vertical fins are formed at predetermined intervals on upper and lower walls of a front edge portion of the retainer 2. .
Further, damper shaft holes for dampers are provided on both side walls of the rear portion inside the ventilation passage 21, and the rotary shaft 51 of the damper 5 is fitted therein.

The front movable louver 3 is constructed by arranging a plurality of horizontal fins 31 so as to be rotatable at regular intervals, and connecting their rotating shafts 32 with a link bar 36 via a crank 35. . As shown in FIG. 3, the rotary shafts 32 on both sides of each horizontal fin 31 are inserted into bearing holes on both side walls of the bezel 1 and are rotatably supported. Furthermore, each horizontal fin 31
A crank 35 is connected to the tip of one of the rotating shafts 32, and the cranks 35 are connected to each other by a link bar 36 to form a link mechanism for rotating the front movable louver 3. The crank 35 and the link bar 36 of the link mechanism are arranged outside the bezel 1.

Specific horizontal fins 31 of the front movable louver 3
The operation knob 6 to be described later is attached to the
As shown in FIG. 5, the horizontal fins 31 to which the ridges are mounted are provided with convex ridges 34 on the upper and lower sides on the front side thereof so as to project in the longitudinal direction.
Are formed along the longitudinal direction. Although this guide groove 33 is provided for the sliding guide of the operation knob 6, it is difficult to visually recognize it from the front because it is a concave groove, and it is possible to prevent the appearance from being deteriorated.

In the rear movable louver 4, a plurality of vertical fins 41 are vertically arranged in the retainer 2 so as to be rotatable at regular intervals, and their rotation shafts 42 are connected via a crank 45 to the link bar 4.
6 are connected to each other. Rotation shafts 42 are provided so as to project from the upper and lower portions of each vertical fin 41.
Are rotatably fitted in bearing holes provided in the upper wall and the lower wall of the retainer 2. Further, as shown in FIG. 2 and FIG. 3, cranks 45 are connected to the rotary shafts above the vertical fins 41, and the cranks 45 are connected to each other by a link bar 46. This link mechanism is disposed above the upper wall of the retainer 2 and changes the direction of each vertical fin of the rear movable louver 4.

Further, as shown in FIG. 3, the central vertical fin 41 of the rear movable louver 4 has a sector gear 47 at the front thereof.
Is provided so as to project forward. This fan-shaped gear 47
Is arranged in engagement with the tooth portion of the knob rear portion 62 of the operation knob 6 attached to the horizontal fin 31 located in front of the horizontal fin 31. Transmits the turning power to.

A damper 5 for closing the ventilation passage 21 is pivotally supported at the rear portion of the retainer 2 so as to be rotatable and openable. Rotating shafts 51 are provided on both sides of the damper 5, and the rotating shafts 51 are fitted into the damper shaft holes of the side walls of the retainer 2 and mounted. As shown in FIG. 3, a crank 54 is fixed to one end of a rotary shaft 51 of the damper 5, and a connecting rod 52 is connected to the tip of the crank 54.

On the other hand, the damper knob 53 is pivotally supported on the side wall portion of the retainer 2 via the shaft portion 56, and the lever-shaped link portion 55 integrally formed with the damper knob 53 has the connecting rod 52.
Is connected to the tip of. The other end of the connecting rod 52 has a damper knob 5
3 is connected to a crank 54 fixed to a rotary shaft 51. The front portion of the damper knob 53 projects forward from the damper knob opening portion of the bezel 1, and when the damper knob 53 is held and turned upward or downward with the shaft portion 56 as a fulcrum,
The damper 5 rotates through the link portion 55, the connecting rod 52, and the crank 54 to open and close the ventilation passage 21.

The operation knob 6 for adjusting the directions of the front movable louver 3 and the rear movable louver 4 is slidably fitted and attached to a specific horizontal fin 31 of the front movable louver 3.
As shown in FIG. 5, the operation knob 6 includes a knob body 61 formed in a shape that covers the horizontal fins 31, a knob rear portion 62 that is attached to a rear portion of the knob body 61, and has a tooth portion 69.
A rubber-like elastic body 63 fitted in the knob body 61 is provided.

The knob body 61 is formed in a substantially U shape in a side view so as to cover the outer peripheries of the front surface, the upper surface, and the lower surface of the horizontal fin 31, and a pair of upper locking claws are formed on the upper portion of the rear end portion. 64 is projected, and a pair of lower locking claws 65 are projected on the lower part thereof. A rubber-like elastic body 63 such as silicon rubber that presses the front surfaces of the horizontal fins 31 inserted therein with appropriate sliding resistance is fitted inside the knob body 61, and as shown in FIG. Guide portions 68 are provided on the upper and lower portions of the inner surface of the knob body 61. The ridge 34 projectingly provided on the front portion of the horizontal fin 31 is slidably fitted to the guide portion 68, and guides the movement of the operation knob 6 in the left-right direction within a predetermined range.

The knob rear portion 62 is formed so as to cover the rear surface side of the horizontal fin 31 and be assembled to the rear surface side of the knob body 61, and tooth portions 69 are formed on the rear surface in the longitudinal direction at a predetermined interval. Has been done. Triangular engaging portions 70 that engage with the guide grooves 33 on the back surface of the horizontal fin 31 when mounted on the outer peripheral portion of the horizontal fin 31 are provided on both sides of the inner portion of the knob rear portion 62 in a protruding shape. . This triangular engaging portion 70
Is projected so that the side view becomes a triangle, and at the time of molding,
It does not easily fall or deform and can be molded into an accurate design shape. Further, in the engagement between the guide groove 33 having a triangular cross section and the triangular engaging portion 70, even if some error occurs in the engaging surface and its shape and dimensions, the engagement does not bite. Therefore, the triangular engaging portion 70 is provided with the guide groove 33 of the horizontal fin 31.
And the movement of the operation knob 6 can be smoothly slid and guided.

Further, the knob rear portion 62 is formed with locking holes 67 for locking the upper locking claws 64 on the knob body 61 side on both inner sides of the upper part, and on both inner sides of the lower part of the knob body 61. An engaging portion 66 for engaging the lower engaging claw 65 is formed in a concave shape.

As shown in FIG. 5, the knob main body 61 and the knob rear portion 62 having such a structure are assembled from front and back so as to cover the outer peripheral portion of the specific horizontal fin 31 of the front movable louver 3. At this time, the upper locking claws 64, 64 on both upper sides of the knob body 61 are inserted into the locking holes 67, 67 on both sides of the knob rear part 62, and the lower locking claws 65, 65 on both lower sides of the knob body 61 are locked on the knob rear part. Concave locking portions 6 on both sides of 62
6 and 66, and then the upper locking claws 64 and 64 are locked to the locking holes 67 and 67, and the lower locking claws 65 and 65 are locked to the locking portions 66 and 66. Is surely assembled.

By assembling the operation knob 6 as described above,
As shown in FIG. 4, the triangular engaging portion 70 of the knob rear portion 62 engages with the guide groove 33 of the lateral fin 31, and the inner guide portion 68 in the knob body 61 engages with the convex stripe 34 of the lateral fin 31. ,
Further, the rubber-like elastic body 63 presses and holds the back side of the horizontal fin 31, and the operation knob 6 is attached to the horizontal fin 31 slidably in the left-right longitudinal direction with an appropriate operation load.

The air-blowing adjustment register having the above-mentioned structure is mounted on an instrument panel or a dashboard portion of an automobile so that the end of the retainer 2 is connected to a ventilation duct (not shown). The air sent from the ventilation duct is blown out from the ventilation passage 21 in the retainer 2 through the air outlet 11.

When adjusting the blowing direction of the air upward or downward, the operation knob 6 of the front movable louver 3 is rotated upward or downward and adjusted. When the operation knob 6 is turned up or down and turned, as shown in FIG. 2, the horizontal fin 31 to which the operation knob 6 is attached is turned up and down about its turning shaft 32, and its turning force is increased. Is transmitted to the other horizontal fins 31 via the crank 35 and the link bar 36, and each horizontal fin 31 is rotated by the rotary shaft 3 thereof.
When the horizontal fin 31 is rotated about the fulcrum, the vertical direction of the horizontal fin 31 is changed about the rotary shaft 32, and the air blowing direction is adjusted vertically.

On the other hand, when adjusting the blowing direction of the air to the left or right, the operation knob 6 is moved to the left or right to make the adjustment. When the operation knob 6 is moved to the left or right, the operation knob 6 slides on the horizontal fin 31 and moves in the horizontal direction (lateral direction). Accordingly, as shown in FIG. 3, the tooth portion 69 of the knob rear portion 62 of the operation knob 6 moves the sector gear 47, so that the vertical fin 41 of the rear movable louver 4 rotates left and right with the shaft portion 42 as a fulcrum. The vertical turning force is transmitted to the other vertical fins 41 via the crank 45 and the link bar 46, and each vertical fin 41 turns about its turning shaft 42 as a fulcrum.
The left-right direction of 1 changes centering on the rotating shaft 42, and the blowing direction of air is adjusted right and left.

As described above, the operation knob 6 engages the lateral fin 31 with the triangular engaging portion 70 in the guide groove 33 on the back surface of the lateral fin 31, and the rubber fin-like elastic body is provided on the front portion of the lateral fin 31. Since it is slidably held by pressing, the operation knob 6
When the is moved up and down, the horizontal fin 31 can be rotated without rattling, and when the operation knob 6 is moved left and right, the horizontal fin 31 can be smoothly moved on the horizontal fin 31 without rattling or strong interference. It can be moved, and the air blowing direction can be favorably adjusted vertically and horizontally. Further, since the guide groove is only required to be formed on the rear surface of the horizontal fin 31 that guides the operation knob 6, the structure is simple, and only the appearance of the operation knob and the fin is exposed from the front, and the appearance and appearance are good. Can be prevented and good designability can be secured.

Although 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 in the above embodiment, they are rotated by 90 degrees and the vertical fins are provided on the front movable louver. It is also possible to provide a horizontal fin on the rear movable louver. In this case, the operation knob is attached to the vertical fin and slides in the vertical direction.
In addition, in the above, the knob rear part is provided on the back side of the operation knob,
It meshed with the fan gear provided on the rear vertical fin,
It is also possible to adopt a structure in which the turning force of the operation knob is transmitted to the vertical fins by engaging the shaft with the engaging portion instead of meshing the gears. Further, in the above, the rubber-like elastic body is attached to the inside of the knob body, but a leaf spring is used instead of the rubber-like elastic pair, or a rib is provided inside the knob body to slidably hold the front portion of the fin. It may be done.

[0030]

As described above, according to the air outlet adjusting register of the present invention, the structure of the operating knob is simplified,
The number of parts can be reduced. Further, the part inside the knob body contacts so as to push the front part of the fin, and the triangular engaging part on the rear part of the knob satisfactorily engages with the guide groove having a triangular cross section on the rear part of the fin to operate the operation knob. Therefore, the operating knob does not interfere strongly with the fins or rattle, and especially when sliding on the fins, the appropriate sliding resistance and fins between the inside of the knob body of the operating knob and the front of the fins By engaging the guide groove with the triangular engaging portion at the rear portion of the knob, the operating knob can be slid satisfactorily with an appropriate operating load. Furthermore, the guide groove and triangular engaging part that have a triangular cross-section for sliding guide are less likely to be deformed at the time of molding, and even if some dimensional error occurs in the guide groove and triangular engaging part, rattling or biting occurs. The operation knob can be operated favorably without doing so. Further, since the guide groove formed on the back surface of the fin is hard to be visually recognized from the front, good appearance can be secured without deteriorating the appearance.

[Brief description of drawings]

FIG. 1 is a front view of an air outlet adjustment register showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the register.

FIG. 3 is a horizontal sectional view of the register.

FIG. 4 is an enlarged sectional view of an operation knob.

FIG. 5 is an exploded perspective view of an operation knob and a horizontal fin.

FIG. 6 is a perspective view with a cross section of the knob body of the operation knob.

FIG. 7 is a front view of a knob rear portion of the operation knob.

[Explanation of symbols]

3-Front movable louver 4-Movable rear louver 6-operation knob 21-ventilation 31-horizontal fin 41-vertical fin 61-Knob body 62-Knob Rear

Claims (2)

[Claims] 1. A front movable louver and a rear movable louver are arranged in a ventilation passage, and an operation knob is slidably fitted on a fin of the front movable louver and provided on a rear side of the operation knob. An air blowing adjustment for adjusting the air blowing direction by engaging the rear movable louver whose rear portion is located rearward and rotating each fin of the front movable louver and the rear movable louver by operating the operation knob. In the register, the operation knob includes a knob body that covers a front portion of a fin of the front movable louver, and a knob rear portion that is fitted to a rear portion of the knob body and that covers a rear portion of the fin and that has an engaging portion on a back surface. A guide groove having a triangular cross section is formed in the back surface of the fin along the longitudinal direction, and a triangular engaging portion that engages with the guide groove is provided so as to project inside the knob rear portion. A register for adjusting the air outlet. 2. A ridge is formed on a front portion of a fin of the front movable louver, and a guide portion that engages with the ridge and guides its sliding is provided inside a knob body of the operation knob. The air-blowing adjustment register according to claim 1.