JPH0628325Y2 - Control unit adjustment mechanism for air conditioning equipment - Google Patents

Description

Detailed Description of the Invention A. Purpose of the Invention (1) Field of Industrial Application The present invention relates to a mechanism for adjusting a control unit of an air conditioner such as a blower or a heater mounted on an automobile from a vehicle interior.

(2) Conventional technology Air conditioning equipment for automobiles has a control unit such as a damper for a blower and a hot water valve for a heater, and has been generally used as a mechanism for adjusting the control unit from the passenger compartment. The one in which one end of the lever member pivotally supporting the intermediate portion is projected into the vehicle compartment from the slit formed in the surface panel, and the other end is connected to the control unit via a wire (for example, actual opening). (See Japanese Patent Publication No. 52-16145). According to this adjusting mechanism, when one end of the lever member protruding toward the vehicle compartment is reciprocally operated along the slit, the other end of the swinging lever member reciprocates to adjust the control unit connected to the other end. It can be carried out.

However, when the conventional adjusting mechanism tries to secure a sufficient operation stroke with a light operating force, the amount of movement of the lever member protruding from the front panel becomes large, and the slits moved by the lever member occupy an area on the front panel. Will increase.

However, in recent years, car audio has become
A large number of switches and operating levers for various devices such as air conditioners and drive computers are provided, and it has become difficult to mount the conventional adjustment mechanism while avoiding interference with these devices.

Under such circumstances, an adjusting mechanism using a rotary operation knob, which occupies a small area on the front panel, is disclosed in Japanese Patent Laid-Open No. Sho 61-
It is proposed in Japanese Patent No. 135814.

This adjusting mechanism is provided with a guide slanted portion in which the tip of the rotary shaft driven by the operation knob is cut off obliquely, and this guide slanted part is provided with a lever member that swings around an axis intersecting with the axis of the rotary shaft. Abutting. Therefore, the rotation of the rotary shaft causes the lever member guided by the guide inclined portion to swing, and the control unit connected to one end of the lever member is adjusted.

(3) Problems to be Solved by the Invention However, the adjustment mechanism having the guide inclined portion at the tip of the rotary shaft described above needs to be used within a range in which the rotation angle of the operation knob is 180 °. Not only the setting is restricted, but also the axis of the swing of the lever member needs to intersect with the axis of the rotating shaft, so that the layout is also greatly restricted.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an adjusting mechanism for a control unit in an air conditioner that occupies a small area on the surface panel and has a large degree of freedom in stroke setting and layout. To do.

B. Configuration of the Invention (1) Means for Solving the Problems In order to achieve the above-mentioned object, an adjusting mechanism of a control unit in an air conditioner of the present invention is rotationally driven by an operation knob,
A rotating member having a guide portion projectingly provided on its outer periphery inclined with respect to its axis, a drive member engaged with the guide portion of the rotating member and driven along the axial direction of the rotating member, and a fixed portion A lever member that is supported, one point of which is engaged with the drive member, and the other point of which is connected to the control unit of the air conditioning equipment.

(2) Operation According to the present invention having the above-described configuration, when the rotary member is rotationally driven by the operation knob, the drive member engaging with the guide portion protruding on the outer periphery of the rotary member is moved along the axial direction of the rotary member. Driven. The movement of the drive member is transmitted to one point of the lever member and causes the lever member to swing around the support shaft. Then, the other point of the lever member moves at a predetermined lever ratio to adjust the control unit of the air conditioner connected to the other point.

(3) Example An example of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention.
The drawing is a side view of the whole, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG.

As shown in these drawings, the adjusting mechanism includes a front panel 1 attached to a dashboard of an automobile, and a casing 2 is integrally fixed to the back side of the front panel 1. A rotary member 3 is rotatably supported on the front wall 2a and the rear wall 2b of the casing 2 about an axis L, and an extending portion 3 of the rotary member 3 penetrating the front panel 1 is formed.
The operation knob 4 is fixed to a. A disk member 5 having a large number of grooves 5a formed on the outer periphery is fixed to the middle of the rotating member 3 so as to be located on the back side of the front wall 2a of the casing 2. The groove 5a is attached to the bottom wall 2c of the casing 2. The engaging portion 6a at the tip of the attached U-shaped leaf spring 6 is engaged. Therefore, the disk member 5 and the leaf spring 6 constitute a click stop mechanism, and the rotating member 3 is stabilized at a position where the locking portion 6a of the leaf spring 6 is engaged with any groove 5a of the disk member 5. It is supposed to stop.

The rotating member 3 is the disk member 5 and the rear wall 2b of the casing 2.
And a cylindrical large-diameter portion 3b are provided between and, and a spiral cam 7 as a guide portion is provided on the outer periphery of the large-diameter portion 3b so as to extend over about 270 °. On the other hand, a guide groove 8 is formed in the side wall 2d of the casing 2 in parallel with the axis L, and a slider 9 as a drive member supported so as to sandwich both sides of the guide groove 8 is slidable. Is being guided to.
A cam follower 11 is fixed to the tip of a boss portion 10 protruding from the slider 9 to the inside of the casing 2,
The spiral cam 7 is engaged with the slit 11a formed in the cam follower 11.

Further, a lever member 12 is pivotally supported by a support shaft 13 above the guide groove 8 on the side wall 2d of the casing 2. The lever member 12 is provided with a short arm 14 and a long arm 15 which are bent in a V shape with the support shaft 13 as a boundary, and a recess 14 a formed at the tip of the short arm 14 is a boss portion protruding from the slider 9. 10 is engaged. And
The tip of the long arm 15 is connected to an end of a Bowden wire 16 which is connected to a controller of an air conditioner (not shown).

Next, the operation of the embodiment of the present invention having the above configuration will be described.

When the rotating member 3 is rotated by operating the operation knob 4 located on the front surface of the front panel 1 from the vehicle compartment side, the slider 9 having the slit 11a engaged with the spiral cam 7 protruding on the outer periphery of the rotating member 3 Is pressed by the screw action, guided by the guide groove 8 formed in the side wall 2d of the casing 2, and driven in the direction of the axis L of the rotating member 3.

When the slider 9 is moved, the boss 10 has a recess 14
a is transmitted to the short arm 14 of the lever member 12 which is engaged, and the lever member 12 is swung around the support shaft 13 between the position shown by the solid line and the position shown by the chain line in FIG. Then, the Bowden wire 16 is operated via the long arm 15 of the lever member 12, and the control unit of the air conditioner is adjusted.

As described above, when the rotary member 3 is rotated by the operation knob 4, the disk member 5 that rotates integrally with the rotary member 3
The engaging portions 6a of the leaf spring 6 are sequentially fitted into the large number of grooves 5a formed in the above, and the rotating member 3 is stably stopped at an arbitrary position.
Therefore, it is possible to adjust the control unit such as the damper and the hot water valve of the air conditioner to a predetermined intermediate opening degree.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small designs can be made without departing from the present invention described in the scope of claims for utility model registration. It is possible to make changes.

For example, the slider 9 may be another driving member. Further, instead of connecting the middle of the lever member 12 with the support shaft 13 and connecting the short arm 17 and the long arm 15 on both sides thereof to the slider 9 and the Bowden wire 16, one end of the lever member 12 is supported with the support shaft 13. However, the middle portion thereof may be connected to the slider 9 and the other end thereof may be connected to the Bowden wire 16. Further, the shape of the lever member 12 is not limited to the dogleg shape, but may be formed in an L shape or a linear shape, and the lever ratio thereof can be appropriately set according to the required stroke. Further, the support shaft 1 of the lever member 12
3 is not necessarily provided in the casing 2, but can be provided in a fixed portion such as the back surface of the instrument panel.

Further, the inclination angle and the length of the guide portion 7 protruding from the rotating member 3 can be appropriately set according to the required stroke.

C. Effect of the Invention According to the adjusting mechanism of the control unit in the air conditioner of the present invention described above, the drive member is engaged with the guide portion protruding on the outer periphery of the rotary member driven by the operation knob, and the rotation of the drive member is performed. Since the movement of the member along the axial direction is transmitted to the control unit via the lever member, an arbitrary stroke can be obtained by appropriately selecting the length and inclination angle of the guide unit and the lever ratio of the lever member. . Moreover, as long as the lever member is engaged with the drive member at one point, its shape, the position of the fulcrum, the layout, etc. can be set arbitrarily, and the degree of freedom in design can be greatly expanded. .

Further, by providing the guide portion on the outer periphery of the rotating member,
The entire mechanism can be formed to be elongated in the axial direction of the rotating member, and the layout can be easily performed on a narrow instrument panel surface on which many devices are arranged.

Furthermore, no particular precision is required for parts other than the guide portion of the rotary member, and since this guide portion also has a convex shape, it is easy to process and the manufacturing cost can be reduced.

[Brief description of drawings]

1 is an overall side view of an adjusting mechanism according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG. 2 ... Casing (fixed part), 3 ... Rotating member, 4 ... Operation knob, 7 ... Spiral cam (guide part), 9 ... Slider drive member, 12 ... Lever member, L ... Axis line

Claims (1)

[Scope of utility model registration request] 1. A rotating member (3) which is rotationally driven by an operating knob (4) and has a guide portion (7) which is inclined with respect to its axis (L) and which is provided on the outer periphery of the rotating member (3). A drive member (9) that is engaged with the guide portion (7) and is driven along the axis (L) direction of the rotating member (3), and is pivotally supported by the fixed portion (2), one point of which is the drive described above. An adjusting mechanism for a control unit in an air conditioner, comprising: a lever member (12) that engages with the member (9) and is connected to the control unit of the air conditioner at another point.