JPH0261460A - Air conditioner - Google Patents

Abstract

PURPOSE:To prevent a direction-controlling plate for air current from blocking up the air passageway in order not to cause water dripping, noise of air, fall of the capacity, and the like by having it elastically caught by a V-shaped leaf spring or the like only at one of specific angles and by having its turns in a specific direction brought to a stop under its own weight or under some means, such as a coil spring in a cam mechanism, exerting an elastic biasing force thereupon. CONSTITUTION:An air-current direction-controlling plate 6 is turned by hand when the direction of the current of air is changed. As the controlling plate 6 is turned, a cam 10 is moved in a linkage therewith, causing a V-shaped section 12 of a leaf spring 9 to be elastically deformed on a staggered edge forming a gear section 11 of the cam 10; accordingly, the V-shaped section 12 passes the ridges of the gear section 11 with clicks when the angle is changed. If it is attempted to set the controlling plate 6 at an angle where the gear section 11 is not staggered, the controlling plate 6 freely turns in a certain direction without being stopped halfway in the turn under its own weight, thus being brought to a stop at one of prearranged positions without fail.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an air conditioner, and particularly to an adjustable support structure for a wind direction adjusting plate thereof.

[Conventional technology]

FIG. 4 shows a vertical cross-section of an example of a conventional air conditioner of this kind disclosed in, for example, Japanese Utility Model Application Publication No. 63-57423.
The figure shows an exploded perspective view of the adjustable support structure for the wind direction adjustment plate of this air conditioner.

(Configuration) In both figures, 1 is an air conditioner box, and inside it is a heat exchanger 3. A blower 4 is provided, and a Suita mouth frame 5 is provided at the bottom. The upper part of the surface is covered by the front panel 2.

Reference numeral 10 denotes a rotary cam, which is fixed to one end of the wind direction adjustment plate 6, and has a gear portion 11 having gear tooth-like irregularities on its outer periphery.
It is equipped with The apex portion of a leaf spring V-shaped portion 12 provided on the leaf spring 9 is elastically biased and meshed with the irregularities of the gear portion 11.

Further, the leaf spring 9 is fixed to the Suita mouth frame 5 by the fixing screw 8 with the shaft of the cam 10 inserted into the hole 9a, and further,
A wind direction adjusting plate 6 is pivotally supported at both ends of the air outlet frame 5 so as to be pivotable.

Furthermore, the concave portion of the gear portion 11 provided on the outer periphery of the cam lO engages with the apex portion of the leaf spring V-shaped portion 12, thereby positioning the airflow direction adjusting plate 6 at a predetermined rotational angle position relative to the outlet frame 5. It is configured so that it can be set with a click.

(Operation) Next, the operation in the above configuration will be explained. When changing the direction (angular position) of the wind direction adjustment plate 6,
This is done by manually rotating the wind direction adjustment plate 6. When the wind direction adjustment plate 6 is rotated, the cam 10 moves together with the wind direction adjustment plate 6, and the gear portion l of the cam 10! Due to the unevenness, the leaf spring V-shaped portion 12 provided on the leaf spring 9 is elastically deformed, and can overcome the convex portion of the gear portion 11 and change its direction.

Further, by aligning the positions of the concave and convex portions of the gear portion 11 with the required angular positions of the wind direction adjustment plate 6, the wind direction can be adjusted in a predetermined direction in a click-like manner.

[Three Problems to be Solved by the Invention] However, since the conventional air conditioner is configured as described above, the airflow direction adjustment plate 6 has leaf springs 12 even in areas without unevenness other than at predetermined angular positions. Since the gear part 11 and the leaf spring V are biased/contacted and can be stopped, the gear part 11 and the leaf spring V
It is necessary to adjust the strength of engagement with the character part 12 so that the operation can be performed smoothly and there is an appropriate click feeling. There is a problem in that it may block the air path and cause negative effects such as dew drop (falling water droplets) due to a decrease in the temperature of the wind, an increase in air blowing noise, and a decrease in air volume.

This invention was made in order to solve the problems of the conventional example as described above, and it has good operability and prevents the wind direction adjustment plate from stopping at an intermediate position other than the predetermined angular position, which would cause adverse effects. The purpose of this invention is to provide a device of this type.

[Means for resolving division notices]

For this reason, in the wind direction adjustment device according to the present invention, the elastic biasing engagement of the V-shaped portion such as a leaf spring is eliminated in the parts other than the gear part of the cam, and the self-weight of the wind direction adjustment plate is The above object is achieved by configuring the wind direction adjusting plate to be rotated and stopped at a predetermined angular position using another elastic biasing means.

[Effect]

With the configuration described above, the wind direction adjusting plate according to the present invention eliminates the elastic biasing engagement of the V-shaped portion of the leaf spring etc. at positions other than a predetermined angle position, and therefore
With elastic biasing means such as coil springs installed inside the cam,
Since the wind direction adjustment plate can be rotated and stopped in a predetermined direction, the wind path will not be disturbed on the way, and the dew drop caused by this will be reduced.
Usability can be improved without fear of causing adverse effects such as air blowing noise and reduced performance.

〔Example〕

The present invention will be explained below based on examples. 1st
FIG. 2 shows an exploded perspective view of the main parts of an embodiment of the adjustable support structure for a wind direction adjustment plate according to the present invention, and FIG. equivalent)
Components are represented by the same symbols. Further, the drawing showing the longitudinal section of the air conditioner will be explained using FIG. 4 in the conventional example.

(Configuration) Although the explanation will be repeated in some parts, in Fig. 4, 1 is an air conditioner box, and inside it is a heat exchanger 3. It is equipped with an air blower 4 and a Suita mouth frame 5 at the lower part.

The upper part of the tree is covered with a navigation panel 2. In Fig. 1.2, reference numeral 10 denotes a rotary cam fixed to one end of the wind direction adjustment plate 6, and on its outer periphery, only a portion at a predetermined angle position where the wind direction adjustment plate 6 is fixed is provided. A gear portion 11 having concave and convex portions in the shape of gear teeth is provided. The unevenness of this gear portion 11 elastically meshes with the apex portion of a leaf spring V-shaped portion 12 provided on the leaf spring 9. Also, the gear portion 11 of the cam 10
The smooth portion has a size/shape with a gap (c) so as not to come into elastic contact with the apex of the leaf spring V-shaped portion 12. Further, the shaft of the cam 10 is fitted into the hole 9a of the leaf spring 9, and the fixing screw 8 (
(not shown) to the air outlet frame 5, and the wind direction adjustment plate 6
are pivotally supported on the Suita mouth frame 5 at both end portions. In addition, the shaft 7 of the wind direction adjustment plate 6 pivots with its axis shifted from the wind direction adjustment plate main body 13, and when this pivoting is free, the wind direction adjustment plate main body 13 It is constructed so that it is deflected downward by its own weight.

(Operation) Next, the operation of the wind direction adjusting device of this embodiment having the above configuration will be explained. The direction of the blown wind can be changed by manually rotating the wind direction adjusting plate 6. When the wind direction adjustment plate 6 is rotated, the cam 10 moves together with the wind direction adjustment plate 6, and the plate spring part 12 provided on the leaf spring 9 is elastically deformed by the unevenness of the gear part 11 of the cam 10. Click to get over the convex part of the gear part 11, and in the direction (
angular position) can be changed. Furthermore, even if you try to set the wind direction adjustment plate 6 on a smooth part of the gear part 11, the wind direction adjustment plate 6 will rotate freely in a certain direction due to its own weight, so it will not stop midway. ,
The wind direction adjusting plate 6 is always stopped at a predetermined position.

(Other Embodiments) In the above embodiments, the position of the axis 7 of the wind direction adjustment plate 6 is shifted from the center of gravity of the wind direction adjustment plate main body 13 to utilize the weight of the main body 13. For example, as shown in FIG. 3, which is an exploded longitudinal cross-sectional view of main parts in another embodiment, the cam! Torsion coil spring 1 inside 0
4 is set to apply biasing rotational force to the cam 10 in a certain direction, the axis position 7 of the wind direction adjustment plate 6 is substantially aligned with the center of gravity position of the wind direction adjustment plate main body 13. Even if it is, the wind direction adjusting plate 6 cannot be set on the uneven portion of the gear portion 11 on the outer circumference of the cam 10, so that the same effect as in the embodiment described above is achieved.

Further, the V-shaped leaf spring 12 is not limited to a leaf spring like the one used by the government, and it goes without saying that a member having a 7-shaped tip may be biased by other elastic means. .

Furthermore, the torsion coil spring 14 is not limited to only stiffness, and may be other elastic biasing means.

〔Effect of the invention〕

As described above, according to the present invention, this type of wind direction adjusting plate is configured such that it cannot be stopped at any position other than a predetermined angular position. Dew drops.

In addition to eliminating the fear of negative effects such as air blowing noise and decreased performance,
This has the advantage that the entire device can be configured at low cost.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of essential parts of one embodiment of the wind direction adjustment plate support structure according to the present invention, FIG. 2 is a perspective view of the wind direction adjustment plate, and FIG. FIG. 4 is an exploded longitudinal sectional view of a main part, FIG. 4 is a longitudinal sectional view of an example of an air conditioner, and FIG. 5 is an exploded perspective view of an example of a conventional wind direction adjustment support structure. In the figure, 1 is an air conditioner box, 3 is a heat exchanger,
4 is a blower, 5 is an outlet frame, 6 is a wind direction adjustment plate, a shaft, 9 is a leaf spring, 10 is a cam, 11 is a gear part, 12 is a leaf spring V-shaped part, 13 is a wind direction adjustment plate main body , 14 are torsion coil springs. Note that in each figure, the same reference numerals indicate the same or equivalent components.

Claims (1)

[Claims] Equipped with a heat exchanger and blower inside the air conditioner box,
The air conditioner is configured such that the air heat-exchanged by the heat exchanger is blown out from the outlet by the blower, and the wind direction is changed by a rotary wind direction adjustment plate disposed at the outlet. A rotary cam is connected to the side end of the adjustment plate, and the rotary cam is provided with gear tooth-like uneven portions only at predetermined angular positions on the outer periphery, and the V-shaped apex portion is connected to each of the uneven portions. A V-shaped elastic biasing means configured to be elastically biased to click-set the wind direction adjusting plate to each predetermined rotation angle position is fixed to the box side, and the unevenness on the outer periphery of the cam is fixed to the box side. A gap is provided between the V-shaped apex and the outer periphery of the cam to eliminate the elastic bias, and the wind direction adjustment plate is moved to another predetermined angular position by its own weight or other elastic biasing means. An air conditioner characterized by being configured to stop rotating.