JPH06211041A - Air direction adjusting device - Google Patents

Abstract

PURPOSE:To adjust the direction of air easily while controlling the air quantity distribution state positively by providing plural shaft support body mounting parts and an interlocking body mounting part along both side direction of an air blow-off opening. CONSTITUTION:Disc-shaped shaft support bodies 35a-35d are rotatably supported between a front cover 27 and a rear cover 31 formed along both side direction of a drum housing 21. Eccentric bearing holes 38 are formed at the respective shaft support bodies 35a-35d, and the shaft parts 46 of louvers 41a-41d are rotatably supported into the respective bearing holes 38. A knobbed rack 55 is slidably supported in the front cover 27. When the knobbed rack 52 is moved in both side direction, the respective shaft support bodies 35a-35d are rotated, and the louvers 41a-41d are rotated around interlocking shafts 51 connected by a link body 52, and changed in the opening angles. The concentration diffusion state of the air can be thereby set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction adjusting device provided at an air outlet of an air conditioner of an automobile.

[0002]

2. Description of the Related Art Conventionally, a plurality of substantially plate-shaped louvers are rotatably arranged at predetermined intervals along both sides of an air outlet.
There is known an airflow direction adjusting device that rotates these louvers in conjunction with each other to adjust the air blowing direction. Then, in this type of wind direction adjusting device, the opening angle between the louvers can be adjusted, the wind blown from the air outlet is concentrated, and the wind is blown intensively to a specific occupant or sent to a long distance. There is known an airflow direction adjusting device capable of adjusting the airflow distribution, for example, by changing the airflow and by widely spreading it to enable gentle airflow.

In such an airflow direction adjusting device, as described in, for example, Japanese Utility Model Laid-Open No. 55-149135, the interlocking shafts provided in each louver are slid into guide grooves radially formed on the link plate. Movable fitting and moving this link plate in the front-back direction orthogonal to the direction in which the louvers are arranged parallel to each other to make the louvers parallel to each other for normal air flow. It is possible to set a concentrated state in which the concentrated air is blown out by narrowing the louver, or a diffused state in which the diffused air is blown out by widening the interval between the louver front end portions.

Further, as described in Japanese Utility Model Laid-Open No. 1-24750, the link plate is supported so as to be movable back and forth and rotatable, and the link plate is moved back and forth to adjust the air flow distribution. A configuration is known in which a plurality of louvers are integrally rotated by rotating a link plate to adjust the blowing direction of wind.

However, in such a structure, since the plurality of louvers are integrally rotated by rotating the link plate, the direction of the guide groove of the link plate is changed when the wind direction is adjusted, and the relative angle between the louvers is changed. However, there is a problem in that the louvers cannot be rotated as a whole while maintaining the parallel state in which the louvers are parallel to each other and the normal air flow is maintained, and the wind direction cannot be adjusted accurately. Further, since the interlocking shaft of the outer louver comes into contact with the end portion of the guide groove at the outer end portion where the movement amount of the link plate is large, there is a problem that the adjustment range of the wind direction is limited.

Further, as described in Japanese Patent Application Laid-Open No. 4-32650, the above-mentioned link plate is movably supported in the front-rear direction and both sides, and the link plate is moved back and forth to adjust the air flow distribution. At the same time, a configuration is known in which a plurality of louvers are integrally rotated by moving the link plate in both directions to adjust the blowing direction of the wind.

However, even with such a configuration, when adjusting the wind direction, the interlocking shaft of the louver slightly moves in the guide groove of the link plate, and the relative angle between the louvers is kept constant while reliably controlling the wind direction. It is difficult to make adjustments.

[0008]

As described above, in the above-mentioned conventional structure, it is difficult to adjust the wind direction without fail while keeping the relative angle between the louvers constant and controlling the air flow distribution condition. I have a problem with.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an airflow direction adjusting device capable of easily adjusting the airflow direction while reliably controlling the airflow distribution state.

[0010]

According to the wind direction adjusting device of the present invention, a plurality of louvers having a rotating shaft and an interlocking shaft are arranged along both sides of an air outlet, and these louvers are arranged on the rotating shafts. In a wind direction adjusting device that rotatably supports the louver, connects the interlocking shafts, and rotates the louvers in conjunction with each other to adjust the wind direction. And a case body provided with an interlocking body mounting portion whose longitudinal direction is in both sides of the air outlet, and each pivotal supporting body mounting portion being rotatable about a rotation center. A bearing portion, which is supported and rotatably supports the rotation shaft of each louver, is provided at a position eccentric from the rotation center, and a gear portion with which the rack meshes is provided on at least a part of the peripheral surface. Axis support
An interlocking body that is movably supported in the longitudinal direction by the interlocking body mounting portion and that has a rack portion that meshes with the operation knob and the gear portion of each of the shaft support bodies, and the louvers that are adjacent to each other. And a link body that rotatably connects the interlocking shafts.

[0011]

In the wind direction adjusting device of the present invention, when the operation knob is grasped and the interlocking body is moved in the both directions, each shaft support body having the gear portion meshing with the rack portion of the interlocking body has a predetermined angle. The louver pivotally supported by these bearings also moves. In this state, since the interlocking shafts are sequentially connected by the link body and the interlocking shafts are held at a predetermined distance between them, the louvers rotate about each interlocking shaft as a fulcrum, and the relative angle between the louvers is increased. Changes, and the air volume distribution is adjusted to obtain concentrated or diffused wind. Then, when one louver is rotated in a state where these air volume distribution states are set, each louver sequentially connected by the link body rotates around each rotation axis and maintains each air volume distribution state. The wind direction is adjusted as it is.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the wind direction adjusting device of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 11 denotes a ventilator attached to an instrument panel of an automobile, etc. The ventilator 11 has an outer case 12 having a substantially tubular shape connected to an air conditioner (not shown). An air passage is provided inside the outer case 12, and a wind direction adjusting device 14 is housed on the front side which is the passenger compartment side, that is, the downstream side in the air passage, and is the upstream side in the air passage. A plate-shaped shutter (not shown) is rotatably housed on the rear side. A decorative frame 15 is attached around the front side of the outer case 12. The rotating shaft of the shutter is connected to the shutter operating knob 17 via the link rod 16. By rotating the operating knob 17 up and down, the shutter can open and close the ventilation passage to adjust the air volume. It has become.

Further, as shown in FIGS. 1 to 4, the wind direction adjusting device 14 has a substantially box-shaped drum housing 21 as a case body. The drum housing 21 has an air outlet 22 on the front side and a rear side. An air suction port 23 is formed on the side, and mounting shafts 24, 24 are provided so as to project from both side surfaces so that the mounting shafts 24, 24 can be turned up and down by a predetermined angle in the ventilation passage of the outer case 12.

On the front side of the drum housing 21, a pair of upper and lower substantially horizontal plate-like horizontal louvers 26, whose longitudinal directions are on both sides, are integrally formed with the drum housing 21, and these lateral louvers are formed. At the intermediate position between the louvers 26, 26, a front cover 27 having a substantially U-shaped cross-section with both sides in the longitudinal direction is formed integrally with the drum housing 21. In addition, the front cover 27 is formed with five flat semicircular cutouts 27a that are open toward the rear side at predetermined intervals along both sides, and is open toward the front side. A rectangular through hole 27b for the knob is formed. The cutout 27a located at the center is the other cutout.
The diameter is smaller than 27a. Furthermore, the front cover
Engagement recesses 27c are formed at a plurality of locations on the upper and lower surfaces of 27, and the inside of this front cover 27 is the interlocking body mounting portion 28.
It has become.

Reference numeral 31 is a rear cover which constitutes the drum housing 21. The rear cover 31 has a substantially V-shaped cross section whose longitudinal direction is in both lateral directions, and is a semi-circular planar cutout opening toward the front side. The part 31a is the cutout 27 of the front cover 27.
Corresponding to a, it is formed at five places at predetermined intervals along both sides. Further, the rear cover 31 has engaging projections 31b formed on both sides thereof, and the engaging projections 31b are formed inside the side wall of the drum housing 21.
By engaging with c, it is tightly fixed to the rear side of the front cover 27 in the drum housing 21.

With the front cover 27 and the rear cover 31 combined, a small-diameter cutout 27 in the central portion is formed.
A central bearing portion 32 is formed between a and 31a, and a shaft support body mounting portion 33 having a circular plane shape is formed between the other four notches 27a and 31a.

Further, on the shaft supporting member mounting portions 33, shaft supporting members 35a, 35b, 35c and 35d each having a substantially disk shape are rotatably mounted. Each shaft support 35a to 35d is provided with a gear portion 36 that meshes with the rack from one side of the peripheral surface, and each notch portion of the front cover 27 and the rear cover 31.
An annular flange portion 37 that is held in sliding contact with 27a and 31a,
37 is projected up and down. Further, bearing shafts 38a and 35d located on both outer sides are formed with bearing holes 38 as bearing portions at positions eccentric by 2 mm from the center of rotation.
A bearing hole 38 as a bearing portion is formed in the shaft supporting bodies 35b, 35c located on both inner sides at a position eccentric to the center of rotation by 1 mm.

In the central bearing 32 and the bearing holes 38 of the shaft support members 35a to 35d, the third louver 40 located at the center, the first louver 41a at the left end, and the first louver 41a are respectively provided. Adjacent second louver 41b, fourth louver 41c adjacent to the right side of third louver 40, fifth louver 41d on the right end side
Is rotatably supported. Louvers 40, 41a to 41d
Is formed by joining an upper louver 42 and a lower louver 43, each of which has a substantially plate shape, and from the lower center of the upper louver 42 in the front-rear direction, a substantially cylindrical upper shaft portion 42b having an engaging recess 42a is formed. The lower louver 43 is provided with a lower shaft portion 43b projecting upward from the central upper part in the front-rear direction of the lower louver 43, and the elastically deformable engaging projection 43a is provided with the lower shaft portion 43b. . Then, the engaging recess is formed through the central bearing 32.
The shaft portion 46 of the central third louver 40 is configured by press-fitting the engagement protrusion 43a into the shaft 42a and joining the upper and lower shaft portions 42b, 43b. The shaft portion 46 rotates about the central bearing portion 32. Freely supported, and engaging recesses 42 are formed through the bearing holes 38 of the shaft supports 35a to 35d.
The engaging projection 43a is press-fitted into a and the upper and lower shaft portions 42b, 43b are joined to form a shaft portion 46 as a rotation shaft for the louvers 41a to 41d on both sides. Support 35a ~
It is rotatably supported in a bearing hole 38 of 35d.

Each upper louver 42 and lower louver 43
Notches 42c and 43c for avoiding interference with the horizontal louvers 26 and 26 are formed on the front side of the, and the upper and lower shaft portions 42b and 43b of the upper louver 42 and the lower louver 43 are
Protrusions 42d, 43d for defining the vertical position are formed. Further, interlocking shafts 51 project downward from the vicinity of the rear end of each upper louver 42.

Further, 52 is a rod-shaped link body, and each of these link bodies 52 has fitting holes 53, 53 at both ends thereof, and these fitting holes 53, 53 are adjacent to each other.
By rotatably fitting the interlocking shaft 51 of 0, 41a to 41d, the rear ends of the louvers 40, 41a to 41d are sequentially connected.

Therefore, by operating the operator 54 protruding forward from the third louver 40 in the center to the left and right, the louvers 41a on both sides of the third louver 40 are interlocked with the rotation of the third louver 40.
41d also rotates around each shaft 46.

Reference numeral 55 denotes a rack with a knob as an interlocking member. The rack with knob 55 has a prismatic shape whose longitudinal direction is on both sides, and is mounted on the interlocking member mounting portion 28 inside the front cover 27 in both sides. It is slidably stored. Then, on the rear surface of the rack 55 with knobs, there is formed a rack portion 56 which meshes with the gear portions 36 of the shaft supporting bodies 35a to 35d mounted on the shaft supporting body mounting portions 33, and from the front side. An operation knob 57 is provided so as to protrude to the front side through the knob through hole 27b of the front cover 27. The operation knob 57 is grasped and gripped by the knob rack 55.
By sliding the shafts in both directions, each shaft support 35a to 35d having a gear portion 36 that meshes with the rack portion 56 of the rack 55 with knobs.
Is rotated so that the bearing holes 38 of these shaft supports 35a to 35d are moved.

Further, elastic pieces 58, 58 are formed on the front sides of both ends of the knob rack 55 so as to elastically contact the interlocking body mounting portion 28 and prevent rattling. Further, the interlocking body mounting portion 28 and the knob-equipped rack 55 are formed with irregularities (not shown), and due to the elastic engagement of these irregularities, it is appropriate when the knob-equipped rack 55 moves to a predetermined position. You can get a click feeling.

Next, the operation of this embodiment will be described.

First, as shown in FIG. 1, when the operation knob 57 is gripped and the knob rack 55 is moved to the left, the gear portion 36 meshes with the rack portion 56 of the knob rack 55. The shaft support members 35a to 35d are rotated from the initial position by a predetermined angle, and the eccentric bearing holes of the shaft support members 35a and 35b located on the left side.
38 is on the left end side, and the eccentric bearing hole 38 of the shaft supports 35c, 35d on the right side is on the right end side. In this state, the shaft portion 46 of the first louver 41a moves to the left by 2 mm, and the second louver 41b
The shaft part 46 of the 3rd louver 41c moves to the left by 1 mm.
Moves 1 mm to the right, and the shaft portion 46 of the fourth louver 41d moves 2 mm to the right. Since the shaft portion 46 of the central third louver 40 does not rotate, the distance between the shaft portions 46 increases by 1 mm from the initial position. On the other hand, between the rear end portions of the louvers 40, 41a to 41d, since the interlocking shafts 51 are sequentially connected by the link body 52 and are held at a predetermined distance, the louvers 40, 41a
41a to 41d are air volume distributions in which the front side portions rotate about the interlocking shafts 51 as fulcrums in a direction in which the front side portions open and the distance between the front end portions becomes larger than the distance between the rear end portions to obtain diffused air. It is set to the state (diffusive air distribution mode).

Further, the operation knob 57 is gripped to hold a rack with knobs.
When 55 is moved all the way to the right, the shaft support located on the left side 35
The bearing holes 38 of a and 35b are on the right end and the shaft support located on the right side.
The bearing holes 38 of 35c and 35d are located on the left end side, and the distance between the shaft portions 46 is reduced by 1 mm from the initial position. Therefore,
The louvers 40, 41a to 41d are set in an air volume distribution state (concentrated air distribution mode) in which the front sides rotate about the interlocking shafts 51 as fulcrums in a direction in which the front sides bind to each other and concentrated air is obtained.

At the initial position where the knob rack 55 is located at the center of both sides, the distance between the shafts 46 is equal to the distance between the rear ends, and normal wind that does not diffuse or concentrate is generated. Obtained air volume distribution state (neutral air distribution mode)
Is set to.

When the operator 54 projecting from the third louver 40 is rotated to the left or right in a state where these air flow distributions are set, the louvers 40 and 41a sequentially connected by the link body 52 are connected. 41d rotates around each shaft portion 46, and the wind direction is adjusted to the left and right while maintaining each air volume distribution state.

As described above, according to this embodiment, the air volume distribution state such as concentrated diffusion can be adjusted smoothly and freely by a simple operation, and the air volume can be maintained by keeping the relative angle between the louvers 40, 41a to 41d constant. While reliably controlling the distribution state,
The wind direction can be easily and reliably adjusted to the left and right, the air conditioning effect can be enhanced, and the comfort inside the vehicle can be improved.

Further, the louvers 41a to 41a on which the shaft 46 moves.
d is supported by one shaft support 35a to 35d,
These shaft supports 35a to 35d are rotationally driven by a single rack 55 with a knob, and at the same time, these shaft supports 35a to 35d.
Since the rack with knob 55 is mounted and supported in the drum housing 21, the number of parts can be reduced and the structure can be simplified, and the wind direction adjusting device 14 does not become large, and the wind direction conventionally used can be reduced. It can be easily installed in place of the adjusting device.

[0032]

According to the wind direction adjusting device of the present invention, the air volume distribution state such as concentrated diffusion can be adjusted smoothly and freely by a simple operation, and the air volume distribution state can be ensured by keeping the relative angle between the louvers constant. It is possible to adjust the wind direction easily and surely while controlling the air conditioner to improve the air conditioning effect. Further, since the shaft support and the interlocking body are respectively mounted on the case body, the structure can be simplified and the wind direction adjusting device can be easily mounted in place of the conventionally used wind direction adjusting device without increasing in size. be able to.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of a wind direction adjusting device of the present invention.

FIG. 2 is a perspective view of the same wind direction adjusting device.

FIG. 3 is an exploded perspective view of the wind direction adjusting device of the above.

FIG. 4 is a cross-sectional view of the above wind direction adjusting device.

[Explanation of symbols]

 14 Wind direction adjusting device 21 Drum housing as case body 22 Air outlet 28 Interlocking body mounting portion 33 Shaft supporting body mounting portion 35a, 35b, 35c, 35d Shaft supporting body 36 Gear portion 38 Bearing hole 41a, 41b as bearing portion, 41c, 41d Louvers 46 Shafts as rotating shafts 51 Interlocking shafts 52 Link bodies 55 Racks with knobs as interlocking bodies 56 Racks 57 Operation knobs

Claims (1)

[Claims] 1. A plurality of louvers having a rotating shaft and an interlocking shaft are arranged along both sides of an air outlet, and these louvers are rotatably supported around each of the rotating shafts. A wind direction adjusting device that connects the interlocking shafts and rotates the respective louvers in an interlocking manner to adjust the wind direction, wherein a plurality of shaft support mounting portions are provided along both sides of the air outlet, and A case body provided with an interlocking body mounting portion having longitudinal directions in both sides of the air outlet, and a pivot shaft of each louver, which is rotatably supported by each of the shaft supporting body mounting portions about a rotation center. A bearing for pivotally supporting the shaft at a position eccentric from the center of rotation and a gear for engaging a rack on at least a part of the peripheral surface; Is movably supported along the longitudinal direction, And an interlocking body having a rack portion that meshes with the operation knob and the gear portion of each shaft support body, and a link body that rotatably connects the interlocking shafts of the louvers adjacent to each other. A wind direction adjustment device.