JPH0231300Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a mix door operating lever device that controls a mix door incorporated in an air conditioner for an automobile via a cable.

(Prior art) In the case of an air conditioner for a vehicle, an operating lever is provided on the instrument panel in order to select the outlet for blowing air into the vehicle interior, and to control the temperature and air volume of the blowing air. A cable connects the lever to various doors built into an automotive air conditioner. Therefore, by operating this lever by the occupant, it becomes possible to bring the interior of the vehicle into a desired temperature state.

In this way, when the lever and the door are connected using a cable and the rotational movement of the lever is converted into the movement of the cable to open and close the door via this cable, for example, 57−
As shown in Publication No. 140427, when the tip of the lever is moved in a straight line when viewed from the front side, the cable is attached directly to the middle part of the lever, so
There is a one-to-one correspondence between the movement stroke of the lever and the movement stroke of the cable. Therefore,
When the lever is located approximately halfway through its full stroke, the door connected to the lever via a cable will also be located midway through its full pivot stroke.

(Problems to be Solved by the Invention) In this way, in the case where a cable is directly attached to a lever to control the opening and closing of a door, and the door is a mixed door, the following problems occur.

The mixing door controls the ratio of the amount of air that flows into the heater core after flowing into the heater unit and the amount of air that bypasses the heater core and flows into the mixing chamber of the heater unit, so that the heated air and the heated The purpose of this door is to adjust the ratio of air to the outside air so that air at a desired temperature is supplied into the passenger compartment, but the relationship between the opening degree of the mixture door and the temperature of the air blown into the passenger compartment is Because the relationship is not proportional, if you use the lever described above to control the opening of the mixer door, for example, even if you set the lever to the middle position of its full stroke, the air blown into the passenger compartment will be The temperature will not be between that of the air that can be blown into the room. For example, in order to set the temperature of the air blown into the vehicle interior to a temperature that is exactly in the middle of the controllable temperature, the opening degree of the mixer door should be set to three-quarters, that is, 4 minutes of the air flowing into the heater unit. 3 may have to be set to an opening that guides the heater core. In such a case, there is a problem in that the occupant cannot easily obtain the desired temperature by operating the mixer door using the conventional lever described above.

The present invention has been made in view of the above-mentioned problems of the prior art, and it is possible to freely change the movement stroke of the cable connected to the mix door with respect to the movement stroke of the lever for operating the mix door. The purpose is to

[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the present invention is such that an operating lever is rotatably attached to a controller board installed in the instrument panel of a vehicle, and A slider is slidably engaged with a long groove formed in the longitudinal direction of the operating lever,
The other end of a cable, one end of which is connected to the mix door, is attached to the slider, and the controller board has a guide groove for adjusting the movement stroke of the cable so that the movement stroke of the operating lever corresponds to the operating characteristics of the mix door. The lever device for operating a mix door is characterized in that the slider is slidably engaged with the guide groove.

(Function) According to the present invention configured as described above, consistency between the lever operation and the temperature of the blown air can be achieved, and air conditioning characteristics that do not cause discomfort can be obtained.

(Example) The present invention will be described below based on an example shown in FIG.

A control lever 3 is rotatably attached to a controller board 1 by a pin 2, which is attached to an instrument panel of a vehicle. A knob 4 is attached to the tip of the operating lever 3, and a linear long groove 5 is formed in the rear end along the longitudinal direction. A slider 6 is slidably engaged in the long groove 5, and the other end of a cable 7 is attached to the slider 6, one end of which is connected to a mix door (not shown). A guide groove 8 for adjusting the operating characteristics of the mix door as an operated object is formed in the controller board 1, and the slider 6 is engaged with the guide groove 8. The outside of the cable 7 is slidable inside a cover 9 made of resin, and a predetermined portion of the cover 9 is attached to the controller board 1 by a clip (not shown) that holds the cover 9 in place.

The shape of the guide groove 8 is set as shown in FIGS. 2-4. Figure 2 shows the opening degree of the mixer door and the operating lever 3 when the operating lever 3 is operated from the leftmost position (corresponding to the maximum cooling state) to the rightmost position (corresponding to the maximum heating state) in Fig. 1. FIG. 3 is a diagram illustrating an example of the relationship between In FIG. 2, the solid line A indicates the door opening characteristic of this embodiment, and the operating lever 3 and the opening of the mixer door have a one-to-one relationship, as in the conventional case shown by the broken line. do not have.

As shown in FIG. 3, the total stroke of the operating lever 3 is divided into 8 equal parts and indicated by 0 to 8, and the stroke from the reference position of one end of the cable 7, that is, the part 7a connected to the mixer door, at each position is calculated. When indicated by l ₀ to l ₈ , it becomes as shown in Fig. 4. Fourth
The locus indicated by the solid line T in the figure corresponds to the opening degree of the mixer door in Figure 2, and the trajectory indicated by the solid line T in Figure 4 corresponds to the opening degree of the mixer door in Figure _4.
.about.Δl ₈ indicates the stroke between the center of the pin 2 supporting the operating lever 3 and the center of the slider 6, as shown in FIG.

Assuming that the required opening degree of the door corresponding to each stroke of the operating lever 3 is as shown in FIG. 2, the moving length of one end of the cable 7 as shown in _{FIG .} is required. And the fourth
As shown in the figure, the expansion and contraction strokes of the control section of the cable 7 when the stroke from the fixed position S when the cable 7 is moved back the most are determined as _lx , and Δl ₀ to Δl ₈ are determined. If the movement trajectory of the slider 6, that is, the shape of the guide groove 8, is determined based on the values of Δl ₀ to Δl ₈ , it will be as shown by the solid line Y in FIG. 3.

Next, to explain the operation, the operating lever 3
As shown in Fig. 1, when set to the leftmost position, the mixer door corresponds to the maximum cooling state, and the stroke of the cable 7 on the door side is l ₀
This is the most retracted state. When the operating lever 3 is sequentially moved to the right from this state, the slider 6 slides along the guide groove 8 and at the same time slides along the inside of the long groove 5. This results in
In response to the stroke of the operating lever 3, the door will be opened and closed with opening characteristics as shown in FIG.

Note that it is also possible to obtain desired opening characteristics other than the opening characteristics shown in FIG.

[Effects of the invention] As described above, the present invention is such that the operating lever is rotatably attached to the controller board installed in the instrument panel of the vehicle with a pin, and the operating lever is formed in the longitudinal direction of the operating lever. A slider is slidably engaged in the long groove formed by the mixer door, one end of which is connected to the mix door, and the other end of the cable is attached to the slider, and the movement stroke of the operating lever is set to the operating characteristics of the mixer door on the controller board. The lever device for operating the mix door is formed with a guide groove for adjusting the movement stroke of the cable so as to correspond to the movement stroke of the mix door, and the slider is slidably engaged with the guide groove. When operated via the lever, the cable does not have a one-to-one correspondence with the stroke of the slider, but moves in the desired correspondence, making it possible to operate the mix door with any stroke, and lever operation. This ensures consistency between the air temperature and the temperature of the blown air, resulting in air conditioning characteristics that do not cause discomfort.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a mix door operating lever device according to an embodiment of the present invention, Fig. 2 is a diagram showing the opening characteristics of the mix door by the operating lever of the present invention, and Fig. 3 is a diagram showing the opening characteristics of the mix door by the operating lever of the present invention. FIG. 4 is a plan view showing the shape and a characteristic diagram showing the stroke of the operating lever and the movement stroke of the cable. 1...Controller board, 2...Pin, 3...
Operation lever, 5...Long groove, 6...Slider, 7
...Cable, 8...Guide groove.

Claims (1)

[Scope of utility model registration request] An operating lever 3 is rotatably attached to a controller board 1 installed in an instrument panel of a vehicle with a pin 2, and the operating lever 3
Then, a slider 6 is slidably engaged with the long groove 5 formed in the longitudinal direction of this, and the other end of the cable 7, one end of which is connected to the mix door, is attached to the slider 6. A guide groove 8 is formed to adjust the movement stroke of the cable 7 so that the movement stroke of the operating lever 3 corresponds to the operating characteristics of the mix door, and the slider 6 is slidably engaged with the guide groove 8. A lever device for operating a mixer door.