JP2546347Y2 - Temporary bevel gear structure for automotive air conditioner control system - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for temporarily fixing a bevel gear in a control device of an air conditioner for a vehicle.

[0002]

2. Description of the Related Art As shown in FIGS. 7 and 8, a rotary control device of this kind rotates a drive bevel gear 2 by rotating a control knob 1 to transmit rotation to a driven bevel gear 3. In general, the air conditioner is operated by using a control cable 5 attached to an arm 4 provided on a part of the driven bevel gear 3 to change the motion into a linear motion.

In the above-mentioned conventional structure, the bearing a of the driving bevel gear 2 and the bearing b of the driven bevel gear 3 are mounted at arbitrary points on the axes of the respective bevel gears. The area of the base 6 is required to be large, and the place where the driven bevel gear 3 is arranged is limited below the base 6,
As a result, there is a risk that the bevel gears 2 and 3 are loaded by the click mechanism in a direction in which the two bevel gears are separated from each other and play is generated. In other words, reference numeral 7 denotes a click-shaped brim-shaped ring which is fixed to a part of the drive bevel gear 2, and presses a ball 8 against the bevel gear 2 with a spring 9 to perform a click operation. There was a risk of causing the problem described above.

In the above-described conventional structure, the drive bevel gear 2 is set on the control base 6 via the panel 10 and
Since the knob 1 was inserted and assembled, the assembling work was difficult, and once assembled, there was no serviceability such as replacement of the panel 10 in the market, and there was a drawback that the entire control device would eventually need to be replaced. .

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, reduces the area of the control base required for the bearing, improves the click mechanism, separates both bevel gears, and reduces play. In addition to preventing occurrence, the drive bevel gear, which becomes unstable during assembly, is temporarily fixed to facilitate the assembling operation, and the knob can be attached and detached in the market to allow replacement of panels etc. The purpose is to:

[0006]

The bevel gear temporary fixing structure in the control device of the automotive air conditioner according to the present invention has the following structure as means for achieving the above object.

(1) A drive bevel gear engaged with the knob and a driven bevel gear engaged with the drive bevel gear are provided, and an arm provided on a part of the driven bevel gear performs linear motion via a control cable. In the control device, a part of the bearing of the control base having a bearing for supporting the center hole of the driven bevel gear is extended to form a bearing for supporting the tip of the driving bevel gear on the inner surface thereof, and A claw for temporarily fixing the drive bevel gear is formed on a part of the base.

[0008]

1 and 2 are a plan view and a longitudinal sectional front view, respectively, showing an embodiment of the present invention. FIG. 3 is a side view, FIG. 4 is a plan view of essential parts, and FIG. FIG. 6 and FIG. 6 are plan views showing the assembling method.

In the figure, reference numeral 1 denotes a knob which engages with the drive bevel gear 2 and 3
Is a driven bevel gear and is engaged with the drive bevel gear 2. Driven bevel gear 3
Is provided with an arm 4 so that a linear motion can be performed via a control cable 5 attached to the arm 4. Reference numeral 6 denotes a control base which supports the center hole of the driven bevel gear 3 by a bearing d. The bearing d extends upward to form a bearing c at the tip of the driving bevel gear 2 by a part of its inner surface. A click ring 7 is fixed to a part of the lower surface of the driven bevel gear 3, and a click device including a ball 8 and a spring 9 attached to a base 6 engages both bevel gears 2 and 3. It works in the direction that doesn't leave. At one end of the drive bevel gear 2, a knob mounting claw 2a is provided,
A part of the control base 6 is provided with a temporary fixing claw 6a.

First, the drive bevel gear 2 is temporarily fixed to the control base 6 by the bearing c and the pawl 6a, and then the lamp box 10 is attached to the drive bevel gear 2 by the bearing 10a of the lamp box 10. Next panel 11
Attach knob 1 via. If there is no claw 6a in this structure, the assembling cannot be performed because there is no pressing of the driving bevel gear 2 when assembling the lamp box.

[0011]

[Effects of the Invention] The effects of the present invention are as follows.

(1) The area required for the bearing of the control base can be reduced, and the driven bevel gear can be arranged on the same side of the control base as the drive bevel gear.

(2) As a result of the above, the click mechanism can be arranged so that both bevel gears act in directions that do not separate from each other.

(3) By assembling the claw for temporarily fixing the drive bevel gear on the control base, the assembling work becomes easy, and the knob can be attached and detached in the market so that a structure such as a panel can be replaced. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional front view showing an example of the present invention.

FIG. 3 is a side view showing an example of the present invention.

FIG. 4 is a plan view of a main part showing an example of the present invention.

FIG. 5 is a vertical sectional side view of a main part showing an example of the present invention.

FIG. 6 is a plan view showing an example of the assembling method of the present invention.

FIG. 7 is a plan view showing a conventional example.

FIG. 8 is a longitudinal sectional front view showing a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 knob 2 drive bevel gear 3 driven bevel gear 4 arm 5 control cable 6 control base 7 brim-shaped ring 8 ball 9 spring 10 lamp box 11 panel 2a knob mounting claw 6a temporary fixing claw 10a bearing portion a bearing b bearing c bearing d bearing

Claims (1)

(57) [Scope of request for utility model registration] 1. A drive bevel gear engaged with a knob, and a driven bevel gear engaged with the drive bevel gear, wherein an arm provided on a part of the driven bevel gear performs linear movement via a control cable. The control device having a bearing for supporting a center hole of the driven bevel gear, extending a part of the bearing of the control base and forming a bearing for supporting a tip of the driving bevel gear on an inner surface thereof; A temporary fixing structure of the bevel gear in the control device of the automotive air conditioner, wherein a claw for temporarily fixing the drive bevel gear is formed in a part of the bevel gear.