JPS5923609Y2 - Damper drive device in air conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a damper drive device in an air conditioner for an automobile or the like.

Taking as an example the one described in Japanese Utility Model Publication No. 55-829, as shown in FIG. 1, which has been conventionally proposed as this type of damper drive device, one end of the rotary shaft of the damper 1 is a disk having a groove on the outer periphery. 2 is fixed, and a string-like object 3 having flexibility is placed in this groove.
The middle part of the string-like object 3 is wrapped around and fixed, and both ends of the string-like object 3 are fixed to one end of the lever 4 in opposite directions, and by operating the lever 4, the string-like object 3 and the disc 2 are The damper 1 is rotated.

However, in this damper drive device with a set of levers, the moving direction of the knob, that is, the frontage is large, and the depth also takes up space, and the two cable parts increase the wiring space and require a large installation space. Also, the wiring workability is poor. 1. A bar set control requires a longer cable than a rotary type, and the wiring is often U-shaped or L-shaped with high resistance, making it difficult to make fine adjustments. There were other drawbacks.

The present invention was devised to eliminate all of the above-mentioned drawbacks of the prior art, and it integrates two cable parts to make cable routing easier, and also uses a dial type for cable operation. The purpose is to compact the space and enable reliable adjustment, and the gist of this is that in an air conditioner in which the damper is driven via a cable, the damper side has a groove on the outer periphery of the rotary shaft of the damper. An operation-side disk in which a disk is fixed, and a flexible cable is wound and fixed in a groove of the disk, and a rotation axis of a rotary knob member provided on the operation side also has a groove on the outer periphery. By fixing the damper side disk and winding the cable extending from the damper side disk into the groove of the operating side disk and fixing it, the two cable parts connect the side disks and make them interlock. At the same time, the two cable parts located between the damper side disc and the operation side disc are fitted into one tube, and tension rollers or guides are respectively installed near the discs on those sides. A damper drive device for an air conditioner, characterized in that a member is provided so that at least one of the cable portions is guided by the roller or the guide member and wound around each disc.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a damper drive device according to the present invention will be described in more detail below with reference to the drawings.

In Figure 2, 11 is the heater control dial (
a rotating knob member), and the rotating shaft 11 of this dial 11
An operation side disk 12 having a groove 12a on the outer periphery is fixed to a.

Further, a damper-side disk 14 having a groove 14a on the outer periphery is fixed to the rotating shaft 13a of the heater damper 13.

Two through holes leading from one end to the other end are provided in one outer tube 15, and drive cables 16 and 17 are inserted through these through holes and guided. a pair of ends 16a, 17
The portion near a is wound around the groove 12a of the operation side disk 12 from opposite directions, and the ends 16a and 17a are locked to cable locking portions 12b in the groove.

Similarly, the vicinity of the other pair of end portions 16 b and 17 b are wound around the groove 14 a of the damper-side disk 14 in opposite directions, and the end portions 16 b and 17 b are connected to the cable engagement within the groove. It is locked to the stop portion 14b.

A pair of tension rollers 18 are provided near both discs 12, 14, respectively, and the two drive cables 16, 17 are tensioned by the pair of rollers 18 and are guided by being turned approximately 90 degrees. while being wrapped around each disk.

Therefore, in such a damper drive device, when the heater control dial 11 is rotated, tension is applied to one of the two drive cables, for example 16, and the damper side disk 14 is moved at the other end 16b. At this time, the tension roller 18 moves the drive cables 16 and 17 guided in the same direction along the tube 15 into the groove 12a which is approximately perpendicular to the tube 15.
, 14a to face each other, and both discs 12
．． 14 to ensure rotational operation.

In this device having such a structure and operation, the direction changing portion of the drive cable 16 is received by the tension roller 18, so that it is possible to reduce the stroke error and space due to deflection, and the damper 13 is It can be opened and closed effectively.

Also, since this rotational movement is due to the tension of one of the two drive cables, there is no need for a strong cable like a push-pull cable, and there is no risk of buckling. A small diameter flexible cable is sufficient.

Furthermore, since the two drive cables 16, 17 are housed within one tube 15 and handled as one,
It is convenient for wiring and improves assembly work efficiency.

Furthermore, since the dial is rotatable, the heater control section is thin and requires a small installation space.

Moreover, the sliding resistance during left and right rotation is almost equal, and it has the feature that fine adjustment is also possible.

The present invention is by no means limited to the specific examples illustrated above, and various changes and improvements can be made based on the knowledge of those skilled in the art without departing from the spirit of the present invention. .

For example, in the embodiment described above, a pair of tension rollers 18 were used, but as shown in FIG.
It is also possible to omit one of the pair of tension rollers 18 by arranging one of the tension rollers 7 in the cutting line direction of the operation side disc 12, and as shown in FIG. Instead, an arc-shaped guide member 19 having a groove may be provided.Also, one through hole may be provided in the outer tube 15, and two drive cables may be inserted through the through hole. There is no problem in using a single endless cable instead.

As described in detail above, the damper drive device according to the present invention integrates two cable parts to facilitate cable routing, uses a dial type for cable operation, and provides a tension roller or a guide member to connect the drive cable. It has excellent effects such as eliminating stroke errors due to deflection, compacting the assembly space, and enabling reliable fine adjustment.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of a conventional damper drive device for an air conditioner, FIG. 2 is a perspective explanatory diagram showing an embodiment of the damper drive device according to the present invention, and FIG. FIG. 3 is an enlarged partial cross-sectional view of the vicinity of the operation-side disc 12. FIG. 4 and 5 are diagrams corresponding to FIG. 3 showing different embodiments of the present invention. 11: Heater control dial (rotary knob member),
12: Operating side disc, 12a, 14a: Groove, 13: Heater tamper, 13a: Damper shaft, 14: Damper side disc, 15
: Outer tube, 16.17 : Drive cable, 18
: Tension roller, 19 guide member.

Claims (1)

[Scope of utility model registration request] In an air conditioner in which a damper is driven via a cable, a damper side disk having a groove on the outer periphery is fixed to the rotary shaft of the damper, and a flexible cable is wound and fixed in the groove of the disk. On the other hand, an operating side disk having a groove on the outer periphery is fixed to the rotating shaft of the rotary knob member provided on the operating side, and a cable extending from the damper side disk is wound around the groove of the operating side disk. By fixing the damper side disk, the two cable parts connect the two cable parts so that they are interlocked, and the damper side disk is located between the damper side disk and the operation side disk. The two cable sections are fitted into one tube, and a tension roller or a guide member is provided near the disc on each side, so that at least one of the cable sections is guided by the roller or guide member. A damper drive device for an air conditioner, characterized in that the damper drive device can be wound around each disk.