JPH1047745A - Wind direction adjusting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an operability by restricting the deformation of a movable blade when operation force is applied. SOLUTION: A drum 6 is rotatably supported in a case body. A plurality of vertical fins 16, 16a, 16 are rotatably supported on the drum 6. The drum 6 and the longitudinal fins 16, 16a, 16 are integrally formed with two color molding. The vertical fins 16, 16s, 16 are coupled with each other through a link. An operation knob is provided on the central vertical fin 16a. Holding parts 35, 35 are formed on the operation knob 33 for holding the central vertical fins 16a. The holding parts 35, 35 are extended from a front side part of the central vertical fin 16a of to a rear side part exceeding shaft center O.

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, for example.

[0002]

2. Description of the Related Art Conventionally, for example, a wind direction adjusting device provided at an air outlet for blowing air, such as for air-conditioning of an automobile, has been used. As this type of wind direction adjusting device, for example, a frame body having horizontal blades is rotatably supported in the vertical direction inside a cylindrical case body, and a plurality of The vertically movable blades are rotatably supported, and furthermore, these movable blades are connected to each other by an interlocking rod,
There is known a configuration in which an operating rod is attached to an end on the front side of one movable blade. In this configuration, by operating the operating rod vertically, the frame body is rotated up and down to adjust the wind direction up and down, and by operating the operating rod both sides, The movable blades are rotated in conjunction with each other to adjust the wind direction to both sides.

[0003] However, in the above-mentioned conventional configuration, the number of parts is large, and a process of assembling each part is required.
There is a problem that it is difficult to reduce the manufacturing cost.

[0004] In this regard, for example, a configuration described in Japanese Patent Publication No. 3-41736 is known. In this configuration, a predetermined first resin material is injected into a first mold to form a frame, and thereafter, the frame is arranged in a second mold to form a frame. Melting at a temperature lower than that of the resin material, and
The second resin material which does not adhere to the first resin material is injected to form a plurality of movable blades in a state of being rotatably engaged with the frame. Further, in this configuration, one of the movable blades extends toward the near side (occupant side), and the operating rod is formed integrally. Therefore, with this configuration, in the molding cycle of the molding machine, the movable blade can be formed with the movable blade incorporated in the frame, and the steps of manually incorporating the movable blade into the frame are reduced, and the manufacturing process is streamlined. Therefore, the manufacturing cost is reduced.

[0005]

By the way, as described above, the operating rod is attached to one front end of the movable blade.
Alternatively, in a configuration in which the operating rod is integrally extended from one front end of the movable blade, the operating force for adjusting the wind direction is concentrated on the front end of one movable blade, so that the operability due to deformation of the movable blade is reduced. In order to prevent the deterioration, it is necessary to secure the strength of the movable blade, and there is a problem that the resin material is limited or the thickness of the movable blade is limited.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a wind direction adjusting device capable of easily improving operability.

[0007]

According to a first aspect of the present invention, there is provided a wind direction adjusting device comprising: a frame; a movable blade rotatably supported on the frame so as to be rotatable around a predetermined axis; An operating rod to be attached is provided, and the operating rod is provided with a clamping portion for clamping and holding one side of the movable blade and the other side beyond the axis from the one side. It was done.

In this configuration, the operating rod is pushed in a predetermined direction to rotate the movable blade and adjust the wind direction. At this time, the holding portion of the operating rod sandwiches the movable blade on both sides of the axis of rotation of the movable blade. In addition, a force for deforming the movable blade is less likely to be applied, and the movable blade can be stably rotated, and the strength of the movable blade can be reduced.

[0009] The wind direction adjusting device according to the second aspect is the first aspect.
In the wind direction adjusting device described above, the frame body and the movable blade are formed of synthetic resins having different melting points from each other and having no adhesiveness to each other so as to be rotatably engaged with each other.

In this configuration, since the frame and the movable blade are formed so as to be rotatably engaged with each other, the manufacturing process is simplified, and the manufacturing cost is reduced. Also,
Since the strength of the movable blade can be reduced and the restriction on the resin material is small, the selection of the resin material becomes easy.

[0011]

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

2 and 3, reference numeral 1 denotes a ventilator as a wind direction adjusting device. The ventilator 1 is attached to, for example, an instrument panel of a passenger car, is connected to an air conditioner, and blows out wind into the passenger compartment. ,
Air conditioning is performed. Hereinafter, the downstream side from which the wind blows, that is, the occupant side, will be described as the front side, and the upstream side of the wind will be described as the rear side. The ventilator 1 includes a substantially rectangular cylindrical case 2 formed of a synthetic resin or the like. The rear side of the case 2 is connected to an air duct of an air conditioner, and the front side has a finisher or the like. After being attached,
It is designed to be held by the instrument panel. Further, on the front side of the case 2, there is formed a frame housing portion 3 whose upper and lower surfaces are formed in a cylindrical shape with both sides being axial directions. Shaft holes 4a, 4a are formed substantially at the axis of the body housing portion 3. In addition, on the rear upper side of the case 2, a mounting portion 5 connected to an air conditioner or the like is provided.

A drum 6 as a frame is mounted inside the frame housing 3 of the case 2. The drum 6 is, as shown in FIGS.
Drum body 10 and a plurality of horizontal fins 11 constituting fixed blades
Are integrally formed of a predetermined synthetic resin. The drum body 10 includes a pair of substantially vertical side plate portions 10a, 10a.
And an upper plate 10b and a lower plate 10c connecting the upper and lower portions of the side plates 10a, 10a.
The shaft 6 is rotatably engaged (fitted) with the shaft holes 4a, 4a, and the drum 6 is supported by the case 2 so as to be vertically rotatable. Each of the shaft bosses 12 has a disk-shaped seat portion 12a, a substantially cylindrical shaft portion 12b protruding from the seat portion 12a in the axial direction, and a radially projecting four-way projection from the shaft portion 12b. And a notched portion 12d formed in each rib portion 12c comes into sliding contact with a corner portion of the shaft hole 4a. The horizontal fins 11 are horizontally arranged in parallel with each other along the front side of the drum body 10, and the front end surfaces of these horizontal fins 11, the upper surface of the upper plate portion 10b, and the lower surface of the lower plate portion 10c are connected. The connecting virtual surface has a smooth curved surface shape. Further, on the lower surface of the upper plate portion 10b and the upper surface of the lower plate portion 10c, at least three pairs of bearing portions 14 which are vertically opposed to each other and open at least inward are formed.

Further, inside the drum 6, a plurality of, in this embodiment, three, vertical fins 16, 16a, 16 formed by two-color molding described later are vertically arranged. Vertical fin 16 located at the center of fins 16, 16a, 16
a is a central vertical fin 16a as a movable blade. From the upper and lower ends of the vertical fins 16, 16 a, 16, rotating shafts 21 are respectively protruded.
Are rotatably engaged (fitted) with the bearing portions 14, respectively.
Vertical fins 16, 16 a, 16 are rotatably supported by the drum 6 around an axis O connecting the upper and lower rotation shafts 21. Also, the front ends of these vertical fins 16, 16a, 16 are:
A plurality of rectangular concave portions for avoiding contact with each horizontal fin 11 are formed, and are formed in a zigzag shape. On the other hand, from the rear side of the vertical fins 16, 16a, 16, grooves 23 are formed toward the front side, respectively.
The link shaft portions 24 are formed in the vicinity of the front end of the link shaft.

As shown in FIG. 2, adjacent vertical fins 16 and 16a are formed by separate links 26 each having an engaging portion 26a rotatably engaged with the link shaft portion 24.
, 16 are connected to each other, and these vertical fins 16, 16a, 16
Rotate in conjunction with each other so as to face in the same direction.

Further, as shown in FIGS. 1 to 4, the central vertical fin 16a is located near the axis O and substantially at the center in the vertical and front-rear directions. The parts 31, 31 are protruded. In addition, these engaging projections 31,
31 has a rear side surface vertical to the left and right side surfaces of the central vertical fin 16a, while a front side surface is an inclined surface.

The central vertical fin 16a is positioned at the same height as the engaging projections 31, 31 and has a rectangular recess 32 at its front end.
Are formed.

An operation knob 33 as an operation rod is engaged with and attached to the center vertical fin 16a. That is, the operation knob 33 is formed of a synthetic resin or the like separately from the central vertical fin 16a, and has an operation portion 34 and a pair of substantially plate-shaped protruding parallel to the rear side of the operation portion 34. And 35 are arranged in a substantially T-shaped plane. A rectangular locking hole 35a, 35a is formed in each of the holding portions 35, 35, and a locking rib 35b is formed at a base end between the holding portions 35, 35. Further, on the outer side of each of the holding portions 35, 35, there is provided a reinforcing rib 35c having a triangular shape in a plane, which is connected to the operation portion 34 and suppresses bending.
35c is formed. The operation knob 33 passes through the space between the horizontal fins 11 to the central vertical fin 16a from the front side as shown in FIG.
In the direction of arrow A and engaged with the locking holes 35a,
35a is locked to the engaging projections 31, 31, the locking rib 35b is locked to the rectangular recess 32, and the holding portions 35, 35 are tightly held on the left and right side surfaces of the central vertical fin 16a. . further,
In this state, the distal ends of the holding portions 35, 35 extend rearward beyond the axis O from the front side to the rear side.

Therefore, by moving the operation knob 33 in the vertical direction, the entire drum 6 moves up and down to adjust the wind direction up and down, and the operation knob 33 is moved in both side directions (left and right directions). As a result, the vertical fins 16, 16a,
16 rotates in conjunction with it, and the wind direction is adjusted left and right.

Next, the drum 6 and the vertical fins 16, 16a,
In a state where the bearing portion 14 and the rotating shaft 21 are rotatably engaged and the vertical fins 16, 16 a, 16 are rotatably supported on the drum 6, the two-color molding of the 16 Fins 16, 16a, 16
And the step of forming the drum 6 will be described.

That is, in the two-color molding, both of the two injectors, the first and second half molds connected to these injectors, and the two half molds mounted on a rotary table are used. A two-color injection molding machine having a rotary table-type mold clamping device provided with a third half mold that is matched with the mold is used.

The first injector has an ABS.
The resin is melted and weighed in a predetermined amount, the first half mold attached to the first injector is positioned and matched with the third half mold on the rotary table,
ABS is inserted into the mold space (cavity) formed between the molds.
The resin is injected to form the drum 6. Also, at this time,
The movable pin inserted from the lower end to the vicinity of the upper end of the drum 6 is advanced and retracted to form bearings 14 and 14 facing vertically.

In the second injector, a polypropylene modified with an elastomer or the like is melted and weighed in a predetermined amount, and a rotary table is mounted on a second half mold attached to the second injector. The third half mold that holds the drum 6 by rotation is positioned and aligned. In this state, while holding the drum 6 in the mold space formed between the molds, the above-described polypropylene is injected, and the bearing 14 and the rotating shaft 21 are rotatably engaged with each other, so that the drum 6 Vertical fins 16, 16a, 16 rotatably supported
To form That is, this polypropylene is ABS
Since it has a lower melting point than the resin and has no adhesiveness to the ABS resin, two members rotatably assembled can be manufactured in a molding cycle of a two-color injection molding machine.

A link 26 and an operation knob are attached to the drum 6 and the vertical fins 16, 16a, 16 formed as described above.
The ventilator 1 is assembled by engaging and assembling the drum 33 and further assembling the drum 6 with the case 2.

Thus, according to the present embodiment, the holding portions 35 of the operation knob 33 extend from the front side of the central longitudinal fin 16a to the rear side beyond the axis O. Since the central vertical fin 16a is sandwiched from both sides, the operation knob 33
When adjusting the wind direction by rotating the vertical fins 16, 16 a, 16 by pushing the left and right in the left-right direction, the operating force of the operation knob 33 is applied to the front and rear sides with respect to the axis O of the central vertical fin 16 a. Join and do not concentrate in one part. Therefore, the central vertical fin 16a
It is difficult to apply the force to deform
6, 16a, 16 can be rotated stably, and operability can be improved, and a plurality of vertical fins 16, 16a, 16
When these are interlocked, the vertical fins 16, 16a, 16 can be stably rotated. It is more preferable that the link shaft portion 24 to which the link 26 connecting the vertical fins 16, 16a, 16 is connected is provided near the holding portions 35, 35 and near the axis O.

Further, since the force for deforming the central vertical fin 16a is hardly applied and the strength of the central vertical fin 16a alone can be reduced, the central vertical fin 16a can be reduced.
The thickness of the vertical fin 16a can be reduced, and the vertical fins 16, 16a, 16 can be provided with a necessary and sufficient draft. Therefore, a predetermined thickness is given to the axis O and the vicinity of the axis O,
While the strength required for rotation can be obtained, the front and rear end portions are formed to be thin to reduce the ventilation resistance, improve the air distribution performance of the ventilator 1, and suppress the generation of wind noise and the like. Can be.

Further, since the strength of the central vertical fin 16a can be reduced, the limitation on the resin material for forming the central vertical fin 16a can be reduced. That is, 2
Even if the central longitudinal fin 16a is formed by using a soft resin material such as a thin elastomer modified by using a color molding method, the deformation caused by the operation force can be prevented by the holding portion 35 extending rearward beyond the axis O. And reinforcing ribs 35c to securely support at least the first half of the central vertical fin 16a including the vicinity of the axis O, and effectively reinforce the central vertical fin 16a. The operating force can be reliably transmitted to the 16, 16a, 16 and the operability can be prevented from deteriorating due to the twisting or bending of the central vertical fin 16a, and the material can be easily selected.

In the above-described embodiment, the ABS resin and the polypropylene are used for the two-color molding. However, various combinations are possible as long as the resins have different melting points and do not have adhesive properties to each other. is there.

Further, the present invention is not limited to a so-called two-color molding method using two kinds of resins, but may use a multicolor molding method using a plurality of resins, or an insert molding method to form a frame and movable blades. , The operability can be improved while the terminal of the movable blade is formed thin.

Further, in the above embodiment, the operation knob is provided on the central vertical fin 16a located at the center of the plurality of vertical fins 16.
Although 33 is attached, the operation knob may be attached to another position, for example, a vertical fin located at one side end, or the operation knob may be attached to a plurality of vertical fins.

[0031]

According to the wind direction adjusting device of the first aspect,
When the operating rod is pushed in a predetermined direction and the movable blade is rotated to adjust the wind direction, the holding portion of the operating rod holds the movable blade on both sides of the axis of rotation of the movable blade. Pinching, that is, the operating force is applied to both sides of the axis of rotation of the movable blade, so that the force to deform the movable blade is less likely to be applied,
The movable blade can be stably rotated, and operability can be improved. Further, since the strength of the movable blade can be reduced, the thickness of the movable blade can be reduced, the ventilation resistance can be reduced, and the limitation on the resin material used to form the movable blade can be reduced.

According to the wind direction adjusting device of the second aspect, in addition to the effect of the first aspect, in addition to the effect of the first aspect, the frame and the movable blade are mutually rotated by using synthetic resins having different melting points and non-adhesive properties. By forming it in a movably engaged state, the manufacturing process can be simplified and the manufacturing cost can be reduced. Further, since the strength of the movable blade can be reduced and the limitation on the resin material is small, two types of resin materials having predetermined characteristics can be easily selected, and the production can be facilitated.

[Brief description of the drawings]

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

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

FIG. 3 is a cross-sectional view of the same wind direction adjusting device as viewed from a bottom surface side.

FIG. 4 is an exploded perspective view of the wind direction adjusting device with a part cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ventilator as a wind direction adjustment device 6 Drum as a frame 16a Central longitudinal fin as a movable blade 33 Operating knob as an operating rod 35 Nipping part O Axis

Claims (2)

[Claims] 1. A frame, a movable blade rotatably supported on the frame so as to be rotatable around a predetermined axis, and an operating rod attached to the movable blade. A wind-direction adjusting device, comprising: a holding portion for holding and holding one side of the movable blade and the other side beyond the axis from the one side. 2. The frame according to claim 1, wherein the frame and the movable blade are formed of a synthetic resin having different melting points from each other and having no adhesive property so as to be rotatably engaged with each other. Wind direction adjustment device.