JPH1120467A - Air blow off device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air blow-off device for a vehicle constituted in such a way as to automatically adjust the direction of blades at the time of switching to power driving after manual operation of the blade direction so as to swing in the original position. SOLUTION: An air blow-off device for a vehicle is provided with blades 11 rotatably arranged in an air flow passage, connecting rods 17 reciprocated by a driving means, and clutches 18 for connecting the blades 11 and the connecting rods 17 and connected to the connecting rods 17 with specified frictional force. The rotating range of the blades 11 is so set that the rotating range by the driving means is smaller than the rotating range by manual operation. This device is also provided with pins rotated in association with the rotation of the blades 11, and stoppers arranged on the rotation loci of the pins in order to prevent the pins from being moved out of the rotating range of the driving means by the driving means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air outlet device. More specifically, an air outlet for a vehicle in which the direction of a register blade provided in an air outlet of an air conditioner used in an automobile or the like is manually operated and then the swing angle of the blade is not shifted when the operation is switched to an automatic operation. Related to the device.

[0002]

2. Description of the Related Art Conventionally, in air conditioners for automobiles,
A plurality of horizontal blades and vertical blades are provided in the air outlet, and a swing register that swings the vertical blades by an actuator to periodically change the wind direction is used. 6 and 7 show a conventional swing register. FIG. 6 (a) is a front view, FIG. 6 (b) is a cross-sectional view taken along line bb of FIG. 6 (a), and FIG.
It is sectional drawing in the cc line of (a).

[0003] In this swing register, a plurality of horizontal blades 2 and a plurality of vertical blades 3 are rotatably supported at the front of an outer frame 1, and the horizontal blades and the vertical blades swing in conjunction with each other. It works. The center horizontal blade 2 is provided with a slidable knob 4 which can directly rotate the horizontal blade 2 and a bifurcated U-shaped arm formed at the tip of the knob 4. 4a, the vertical blade 3 can be rotated by engaging with a pin 3a provided at the front portion of the central vertical blade 3.

A pin 3 is also provided at the rear of the central vertical blade 3.
b provided on the pin 3b.
The arm 5a is engaged. The clutch 5 is slidably supported by a rod plate 7 driven left and right by an actuator (motor) 6, and is provided with a predetermined sliding resistance by a spring 8.

[0005] The conventional swing register configured as above operates as follows. First, at the time of operation of the actuator 6, the rod plate 7 and the clutch 5 reciprocate integrally, whereby the vertical blade 3 swings, so that the blowing direction of the air flow changes periodically. When it is desired to fix the blowing direction of the air flow, the operation of the actuator 6 is stopped, and the knob 4 attached to the horizontal blade 2 is slidably operated to move the vertical blade 3 to an arbitrary swing position. At this time, the clutch 5 connected to the vertical blade 3 slides on the rod plate 7 so that the rod plate 7 linked to the actuator 6 does not move.
There is no excessive force applied to it.

In such a conventional swing register,
The deflection angle of the register blade has a relationship that the deflection angle by manual operation and the deflection angle by power drive by the actuator 6 are substantially equal. This swing register is usually provided with a driver seat A at the center of the vehicle as shown in FIG.
And a register for the passenger seat B, and the deflection angle θ of the blade 3 of each register is designed to be substantially the same as shown in FIG. 8B. Also, the swing angle of the blade driven by power and the swing angle of the blade by manual operation are almost the same.

[0007]

However, in recent years, an air conditioning system has been adopted in which the air conditioning of the driver's seat and the passenger's seat are independently controlled from the viewpoint of comfort in the passenger compartment. It is required that the blade swings only in the driver's seat and the passenger seat only in the passenger seat when driven by power, and that the direction of the blade can be changed at all angles by manual operation.

However, in the conventional auto register mechanism,
As shown in FIG. 8C, it is possible to change the swing angle θ during power drive and the shake angle 2θ during manual operation, but there is a problem that the swing position shifts with power drive. this is,
In FIG. 8D, the swing angle θ at the time of power drive is a fixed angle determined mechanically, and FIG.
When the deflection angle by manual operation is 2θ as in the above, there is no problem when the set position by the manual operation is set to the P position, but when it is set to the Q position, Q, R It's different from swinging between. In this way, when the blade position is manually shifted, when driven by power, the blade swings at an intermediate position without returning to the origin.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention automatically adjusts the swinging position of the blade when switching to power drive after setting the position of the blade by manual operation, and swings at the original position. It is an object of the present invention to realize a vehicle air outlet device.

[0010]

According to a first aspect of the present invention, there is provided a blade which is rotatably disposed in an air flow passage.
And a connecting rod 1 reciprocated by a driving means
7, the blade 11 and the connecting rod 17 are connected,
A clutch 18 engaged with the connecting rod 17 with a predetermined frictional force, so that the rotation range of the blade 11 is smaller than the rotation range by manual operation. A set air outlet device for a vehicle, comprising: a pin 21 that rotates with the rotation of the blade 11; and prevents the pin 21 from being moved out of a rotation range of the driving unit by the driving unit. And a stopper 22 disposed on the rotation trajectory of the pin 21.

Further, according to the invention of claim 2, the load that the pin 21 can pass through the stopper 22 is P when the blade 11 goes outward from the range driven by the driving means.
₁ , where P _{2 is} the opposite direction and P ₀ is the clutch load, and the relationship is set as P ₂ <P ₀ <P ₁ . By adopting this configuration, when the direction of the blade is set by the manual operation, when the operation is switched to the automatic operation, the direction of the blade is automatically adjusted by the pin and the stopper, and the blade swings at the original position. The above-described vehicle air outlet device can be realized.

[0012]

1 and 2 are views showing an embodiment of the present invention. FIG. 1 (a) is a front view, and FIG. 1 (b) is a line bb in FIG. 1 (a). 2A is a cross-sectional view taken along line cc of FIG. 1A, and FIG. 2B is a cross-sectional view of FIG.
It is a Z arrow view of (a). In FIG. 1, reference numeral 10 denotes a case, 11 denotes a vertical blade, and 12 denotes a horizontal blade.
The case 10 has two windows 10a and 10b,
It is formed by integral molding of resin or metal, or by combining appropriately divided parts. The window 10a,
One of 10b is a driver seat side and the other is a passenger seat side.

A plurality of vertical blades 11 are provided in each of the windows 10a and 10b in parallel, and the vertical blades 11 are, as shown in FIG.
b is rotatably supported by the case 10 and the rod plate 1
3, it is possible to rotate in conjunction with each other,
Knob 1 integrally formed on lower shaft 11b or fixed separately
4 allows manual rotation. Further, a plurality of horizontal blades 12 are provided at intervals in the vertical direction, and as shown in FIG.
2a, 12b rotatably supported by the case 10,
The rod plates 15 rotate in conjunction with each other.

As shown in FIG. 1B, the fork portion 18b of the vertical blade 11 is slidably supported by a connecting rod 17 slidably driven right and left by an actuator mechanism 16. It is configured to engage with one end of the vertical blade 11 and swing. The clutch 18 is connected to the connecting rod 17 by a clutch spring 18a.
Is provided with a predetermined sliding resistance, and can be slid when a force greater than the sliding resistance is applied.

As shown in FIG. 1B, the swing angle of the vertical blade 11 is an angle θ ₀ for both the left and right seats in the manual operation, the right seat is an angle θ ₁ from the center to the right in the automatic swing, and the left seat is the center in the automatic swing. It is set so that the angle θ ₁ swings to the left from.

The lower surface of the case 10 is shown in FIG.
As shown in FIG. 1, a rib 20 having an arc shape centered on the axis of the knob 14 and having a U-shaped cross section is formed integrally with the case 10. The knob 14 is formed with a cylindrical pin 21 that can move in the groove of the U-shaped rib 20. A stopper 22 for stopping the pin 21 at a predetermined position is swingably supported by a rotating shaft 23 provided on the case 10, and is urged by a spring 24 in the direction of arrow A. The stopper 22 is held so as not to rotate clockwise from the position shown.

The operation of the embodiment constructed as described above will be described with reference to FIGS. FIG. 3 is for the left seat, and the right seat is symmetrical with respect to this, so that the left seat will be described below. First, the vertical blades automatically swing state 11 swings between the swing angle theta ₁ about the shaft 11b.
Similarly, the pin 21 provided on the knob 14 is
It moves within the range of θ ₁ along the groove of the U-shaped rib 20 of zero. In the position (1), the pin 21 is set in such a positional relationship that the pin 21 substantially contacts the inclined surface 22a of the stopper 22. In a manual operation, the vertical blade 11 and the knob 14 rotate within a maximum range of θ ₀ .

In FIG. 3, the position of the inclined surface 22a of the stopper 22 is such that the dimension W between the stopper 21 and the inner wall of the U-shaped rib 20 is smaller than the diameter of the pin 21.
In order to rotate the pin 21 from the position shown in FIG. 4 in the direction shown in FIG. 4, the stopper 22 is rotated counterclockwise to widen the dimension W as shown in FIG. At this time, the load required to rotate the stopper 22 is set based on the angle of the inclined surface 22a of the stopper, the W dimension, the position of the rotation shaft 23 of the stopper, the spring load of the spring 24, and the lever ratio of the stopper 22. be able to. The same applies to rotation from the opposite direction. At this time, as shown in FIG. 5, the pin 21 comes into contact with the inclined surface 22b of the stopper 22 at the position shown in FIG.
To rotate.

The stopper load has a direction from P ₁ ,
If the direction is P ₂ and the clutch load is P ₀ , P
₂ <is set to P ₀ <P ₁ and the relationship. In FIG.
When the pin 21 is placed at the position by a manual operation, since P ₂ <P ₀ when driven by power, the pin 21 rotates to the maximum position. Then, the pin 21 comes to the reversal position, but since P ₀ <P ₁ , the pin 21 cannot get over the slope of the stopper 22. As a result, the clutch operates and the pin 21 stops at the position before the reversal timing again, and returns to the initial state.

When the knob 14 is moved by manual operation, the position of the vertical blade and the connecting rod is shifted by slipping of the clutch, and the pin 21 is arranged at, for example, a position.
In this state, when the switch button 19 is pressed to enter the automatic swing state, the pin 21 shifts the initially set swing angle θ ₁ from the position A to the position B, C. However, although the pin 21 can pass the stopper 22 from the right side to the left side, it cannot pass from the left side to the right side (manual operation is possible), and the vertical blade 11 is fixed by the action of the clutch. The connecting rod 17 moves while being moved, and the displacement between the vertical blade 11 and the connecting rod is eliminated. Therefore, the vertical blade 11 rotates at the swing angle shown in FIG. (Return to the initial state).

[0021]

According to the air blowing device for a vehicle according to the present invention, the pin provided on the knob that swings together with the vertical blade can get over by manual operation, but the clutch slips by the power drive, and the stopper cannot get over. Is provided in the case, when the operation is shifted to the power drive after the manual operation, the blade is automatically adjusted to return to the original position, and the blade can return to the original position and swing.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention, in which (a) is a front view, and (b) is a cross-sectional view taken along line bb of (a).

FIG. 2 is a diagram showing an embodiment of the present invention, wherein FIG.
FIG. 1A is a cross-sectional view taken along line c-c, and FIG.
FIG.

FIG. 3 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 4 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 5 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 6 is a diagram showing a conventional swing register.

FIG. 7 is a sectional view taken along line cc of FIG. 6;

FIG. 8 is a diagram for explaining a problem to be solved by the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Case 11 ... Vertical blade 12 ... Horizontal blade 13, 15 ... Rod plate 14 ... Knob 16 ... Actuator mechanism 17 ... Connection rod 18 ... Clutch 19 ... Switch 20 ... U-shaped rib 21 ... Pin 22 ... Stopper 23 ... Rotating shaft 24 …spring

Claims (2)

[Claims] 1. A blade (11) rotatably arranged in an air flow passage, and a connecting rod (1) reciprocated by a driving means.
7), and a clutch (18) that connects the blade (11) and the connecting rod (17) and is engaged with the connecting rod (17) with a predetermined frictional force. The moving range is a vehicle air outlet device that is set such that the turning range of the driving unit is smaller than the turning range of a manual operation. Rotating pin (2
1) and a stopper (22) disposed on the rotation locus of the pin (21) in order to prevent the pin (21) from being moved out of the rotation range of the driving means by the driving means. An air blowing device for a vehicle. 2. The pin (21) is a stopper (22).
The load that can pass through the blades (11) is
When moving outward from the range driven by ₁And its anti
P in opposite direction_Two, Clutch load to P₀Then P_Two<P
₀<P₁Claims that are set so that
Item 4. An air blowing device for a vehicle according to Item 1.