JP2570647Y2 - Horizontal blade drive mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving mechanism for a horizontal blade applied to an air conditioner.

[0002]

2. Description of the Related Art Heretofore, rotation control of horizontal blades in an air conditioner having a plurality of outlets has been performed as follows. That is, the horizontal blades provided at the respective outlets are integrally connected by the connecting rod, and the connecting rod is connected to the motor. Thus, the horizontal blades can be integrally rotated by driving the motor. The angle setting of the horizontal blades and the swing operation are performed by a remote controller or the like.

However, in the case of such an air conditioner, a comfortable airflow distribution in a room may not be obtained depending on the installation position. For example, as shown in FIG. 5, when the air conditioner A is installed at a position close to the wall side, each horizontal blade swings in the same direction in all four directions, so A problem arises in that a region Z in which air does not reach the air occurs. In order to solve this problem, it is necessary to make the swing operation of the horizontal blade of the outlet located on the wall side different from the swing operation of the horizontal blade of the other outlet.

As a conventional technique for solving such a problem, there is one disclosed in Japanese Patent Application Laid-Open No. 3-75439. FIG. 6 and FIG. 7 show a configuration of a horizontal blade used in such an air conditioner. In particular, the former is a plan view of the decorative panel, and the latter is a longitudinal sectional view showing the configuration of both ends of the horizontal blade 40 of FIG. Hereinafter, the configuration of the present technology will be briefly described based on both the drawings.

[0005] In the present technology, two motors M1 and M2 are provided, and outlets are provided in four directions. The horizontal blades 40 to 44 disposed at the outlets have the same structure. That is, the horizontal blades 40 and 41 have the same configuration, and the horizontal blades 42 and 43
Have the same configuration. Specifically, it is as follows. That is, rockers 45 are attached to both ends of the horizontal blade 43, and one of the rockers 45 is directly connected to the motor M <b> 1 via a cross-shaped universal joint 44. Further, the other rocker 45 is connected to a rocker 45 mounted on the adjacent horizontal blade 40 via the universal joint 44. The horizontal blade 42 also has a similar configuration. One rocker 45 is directly connected to the motor M2, and the other rocker 45 is connected to the adjacent horizontal blade 41 via a universal joint 44. I have. Therefore, the horizontal blade 4
3, 42 rotate in response to the driving of the motors M1, M2, respectively.

On the other hand, both ends of the horizontal blade 40 have a configuration as shown in FIG. As shown in the figure, bearing portions 46 are formed at both ends of the horizontal blade 40.
A screw hole 47 is formed in a side surface of the bearing portion 46, and a rocker 45 is loosely fitted in a central hole of the bearing portion 46. Therefore, when the rocker 46 is fixed to the screw hole 47 through the screw 48, the horizontal blade 40 is rotated by the motor driving force transmitted by the universal joint 44 and the rocker 45. Conversely, when the rocker 45 is not fixed by the screw 48, the rocker 45 idles in the bearing portion 46. As a result, the horizontal blade 40
When the rocker 45 on the second side is fixed by the screw 48, it is connected to the motor M2 but not to the motor M1. The horizontal blade 41 has the same configuration as the horizontal blade 40.

[0007] Since the present technology has the horizontal blades having such a structure, it is possible to combine various different horizontal blades, and it is possible to control the air direction of the blown air flow in various ways.

[0008]

However, the prior art still has the following problems. First, in the related art, only a specific horizontal blade can switch the swing operation. According to FIG. 6, only the horizontal blades 40 and 41 can only switch the motors M1 and M2, and the other horizontal blades 42 and 43 are connected to the motors M1 and M2, respectively. Cannot switch. As described above, in the conventional technique, there is a problem that only one horizontal blade in an arbitrary direction cannot be separated from the swing operation and the horizontal blade cannot be fixed in a fixed blowing direction.

Further, the conventional technique requires at least two motors as described above, and has a problem that the structure is complicated. In order to fix the blowing direction of the horizontal blade in an arbitrary direction by a simple operation, it is desired to realize it with one motor.

Further, in the prior art, even if one specific horizontal blade is separated from other horizontal blades, when the swing operation is performed, the specific horizontal blade also causes the swing operation. Problems can also arise. For example, in FIG. 6, even when the horizontal blades 40 are connected to the motor M2 and the other horizontal blades 41 to 43 are all connected to the motor M1, the horizontal blades are driven by the motors M1 and M2. The blade 40 also performs a swing operation. In this case, if the motor M2 is not operated, it is possible to fix the horizontal blade 40 in a fixed blowing direction, but the presence of the motor M2 may be meaningless.

[0011]

[Purpose] The present invention has been made in view of the above problems, and its purpose is as follows.

A first object of the present invention is to provide a driving mechanism for a horizontal blade capable of separating a horizontal blade in an arbitrary direction from a swing operation by a simple operation. The second
It is an object of the present invention to provide a drive mechanism having a structure that can easily fix a horizontal blade separated from a swing operation in a fixed blowing direction and can change the fixing direction at will. .

[0013]

According to a first aspect of the present invention, there is provided a driving mechanism for a horizontal blade, comprising: (a) a connecting portion connected to a horizontal blade driving portion; and (b) a connecting portion connected to the horizontal blade. (C) a joint portion coupled to the connecting portion and being loosely fitted to the horizontal blade shaft and having a first concave portion provided on a surface facing the first projecting portion; A second protruding portion that is inserted between the joint portion and the first protruding portion and that is inserted into the horizontal blade shaft and that can be fitted into the first concave portion is formed at a distal end portion facing the joint portion. A switching portion formed at a rear end portion having a third concave portion shallower than the second concave portion facing the first projecting portion;
(E) a spring penetrated by a horizontal blade shaft, inserted between the joint portion and the switching portion in a compressed state, and provided with a second protruding portion disposed inside thereof. Further, the size of the second recess is set so that the second protrusion is not fitted into the first recess when the first protrusion is locked in the second recess. The dimension of the third concave portion is set so that the second projecting portion is fitted into the first concave portion when the third concave portion is locked.

According to a second aspect of the present invention, in addition to the horizontal blade driving mechanism of the first aspect, (f) the horizontal blade shaft is inserted between the first projecting portion and the horizontal blade. A bearing having a first uneven portion formed on a surface facing the first projecting portion, a second uneven portion formed at a rear end of the switching portion, and the first projecting portion engaging with the second recess. The bearing is arranged at a position where the bearing contacts the rear end of the switching portion only when the bearing is stopped.

[0015]

In the invention according to the first aspect, the joint portion is driven by the horizontal blade driving portion via the connecting portion. Also, since a spring is inserted between the joint part and the switching part,
The switching portion comes into contact with the first protrusion formed on the horizontal blade shaft by the pressing force of the spring. At this time, when the first protruding portion is locked in the second recess formed in the switching portion, the second protruding portion formed in the tip portion of the switching portion is extracted from the first recess of the joint portion. As a result, the joint portion is loosely fitted to the horizontal blade shaft, and as a result, the joint portion idles around the horizontal blade shaft, so that the driving force of the horizontal blade drive unit cannot be transmitted to the horizontal blade.

On the other hand, when the first projecting portion is locked in the third recess, the second projecting portion is fitted into the first recess, and the joint portion is connected to the horizontal blade via the second projecting portion. The driving force of the driving unit is transmitted to the horizontal blade. Therefore, in this case, the horizontal blades are integrally connected to the horizontal blade drive unit.

In the invention according to claim 2, when the first projecting portion is locked in the second recess, the bearing and the rear end of the switching portion come into contact with each other. As a result of this contact, the first uneven portion provided on the bearing and the second uneven portion provided on the rear end of the switching portion are engaged. In this case, since the switching portion is pressed in the direction of the bearing by the pressing force of the spring, the meshing state between the first uneven portion and the second uneven portion is fixed. Therefore, from this fixed state, the spring is pushed back to pull out the first protruding portion from the third concave portion, rotate the horizontal blade axis, and again lock the first protruding portion to the third concave portion by the pressing force of the spring. When the irregularities are brought into contact, the state of engagement between the two irregularities is changed.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Configuration of Air Conditioner FIG. 4 is a longitudinal sectional view showing a configuration of a ceiling-embedded air conditioner having a horizontal blade drive mechanism according to an embodiment of the present invention. As shown in the figure, a main body 37 of the air conditioner is attached to a suspension bolt 32 via a suspension fitting 33.
The decorative panel 21 is installed on the lower surface of the main body 37.
2 are provided. Each outlet 22 has a horizontal blade 1
3 are installed. The decorative panel 21 has a ceiling surface 29.
This is for covering the opening 31 formed at the bottom. or,
A suction grille 27 and a dust collector 26 are provided at a suction opening 25 at the center of the decorative panel 21.

On the other hand, a fan 35,
A blower 36, a heat exchanger 34, and a drain pan 28 are provided. Next, the positional relationship between the outlets 22 and the horizontal blades 13 in the decorative panel 21 will be described.

B. Configuration of Horizontal Blade FIG. 2 is a plan view of the decorative panel 21 and illustrates a relationship between the horizontal blade and the outlet. Decorative panel 21
Are formed with air outlets 22 in four directions, and each air outlet 22 has horizontal blades 13A, 13B, 13D, 13D.
C is arranged. The motor 2 is located at the lower right of FIG.
3 (drive unit). Then, the driving force of the motor 23 is transmitted to the connecting rod 14 via the power transmission mechanism 24. Each of the horizontal blades 13A to 13D is, as shown in FIG.
They are connected by connecting rods 14.

Next, the driving mechanism (corresponding to the portion surrounded by the broken line 30) of the horizontal blade, which is the main part of the present invention, will be described.

C. FIG. 1 is a perspective view showing a component configuration of a driving mechanism of a horizontal blade provided at one end of the horizontal blade 13. The drive mechanism is roughly divided into a horizontal blade shaft 5, a bearing 4, a switching member 1, a spring 9, and a universal joint 8. Hereinafter, the configuration of each component will be sequentially described.

Horizontal Blade Shaft 5 The horizontal blade shaft 5 is connected to one end of the horizontal blade 13. Generally, the horizontal blade shaft 5 is formed integrally with the horizontal blade 13. A pin 1 is provided on the side surface of the horizontal blade shaft 5.
0 is formed. This pin 10 is, as described later,
The switching member 1 serves to stop the switching member 1 from being pushed by the spring 9 and moving in the direction of the horizontal blade 13. or,
A screw hole 17 is provided at the tip of the shaft 5.

Bearing 4 The bearing 4 is fitted (or may be loosely fitted) to the horizontal blade shaft 5, and is disposed between the horizontal blade 13 and the pin 10. An uneven portion (corresponding to a first uneven portion) is formed on the surface of the bearing 4 facing the pin 10. The position of the bearing 4 on the horizontal blade shaft 5 is determined by the pin 10 and the concave portion 1 of the switching member 1, as will be described later in the description of the operation.
1 is a position where it can come into contact with the concave and convex portion 3 of the bearing 4 when locked at 1.

Switching Member 1 The switching member 1 has a hole 20 formed in the center thereof, and is inserted (may be loosely fitted) into the horizontal blade shaft 5 via the hole 20. Further, a switching member coupling portion (corresponding to the second projecting portion) is formed at the tip portion. On the other hand, among the rear end portion of the switching member 1, an uneven portion (corresponding to a second uneven portion) is formed on a surface facing the pin 10, and two concave portions 11 are formed on a side surface of the rear end portion. (Corresponding to the third concave portion) and 12 (corresponding to the second concave portion) are formed.
The recess 11 is a recess that is shallower than the recess 12. Recess 1
The depth dimensions of 1 and 12 are determined by the positional relationship between the switching member coupling portion 6 and the concave portion 7 of the universal joint 8 as described later.
Further, the diameter of the front end is smaller than the diameter of the rear end. as a result,
A stepped shape is formed between the rear end and the front end.

Spring 9 The spring 9 is always inserted in a compressed state between the stepped portion of the switching member 1 and the universal joint 8 described later. Therefore, when the spring 9 is inserted, the switching member connecting portion 6 comes inside the spring 9.

The universal joint 8 is loosely fitted to the horizontal blade shaft 5 through a central hole thereof, and the universal joint 8 is screwed into the screw hole 17 so that the universal joint 8 is connected to the horizontal blade shaft 5. Prevents getting out more. Two concave portions (corresponding to first concave portions) are formed on the surface of the universal joint 8 facing the spring 9 so that the above-described switching member coupling portion 6 can be inserted. Further, the universal joint 8 is connected to the connecting rod 14 via a hole 19 provided at the distal end of the universal joint 8. The connection between the connecting rod 14 and the universal joint 8 is made by the cross-shaped connecting portion 1.
5 Therefore, the universal joint 8 is rotatable around the horizontal blade shaft 5 under the driving force of the motor 23.

D. FIG. 3 is a cross-sectional view showing the operation of the driving mechanism of the horizontal blade. In particular, FIG. 3A shows the state during the swing operation.
(B) shows the time of swing separation. The operation will be described separately for the case of swing and the case of swing separation.

(A) Swing At the time of swing, the pin 1 is inserted into the concave portion 11 of the switching member 1.
0 corresponds to the locked state. In this case, since the switching member 1 is received by the pin 10 while being pressed by the spring 9, the uneven portion 2 of the switching member 1 is
Are not in contact with the uneven portion 3 of the bearing 4. The universal joint 8
As described above, it is possible to freely rotate around the horizontal blade shaft 5. However, at the time of the swing, since the switching member connecting portion 6 is fitted into the concave portion 7 of the universal joint 8, the horizontal blade 13 and the universal joint 8 and can rotate together.
As a result, when the connecting rod 14 is rotated by the motor 23, the horizontal blade 13 also rotates in accordance with the rotation.

(B) At the time of swing disconnection To change from the swing to the swing disconnection, first, the switching member 1 is moved to the universal joint 8 side, the pin 10 is taken out from the concave portion 11, and then the switching is performed. The member 1 is rotated around a horizontal blade axis 5. Then, by using the pressing force of the spring 9, the pin 10 is
Insert into 2. By this insertion, the switching member coupling portion 6 comes out of the concave portion 7 of the universal joint 8 and the switching member 1
Of the bearing 4 comes into contact with the uneven portion 3 of the bearing 4.
In addition, the concave and convex portions 2 and 3 are engaged with each other by receiving the pressing force of the spring 9. Due to this engagement, the horizontal blades 13 are maintained at a constant blowing angle. On the other hand, since the switching member coupling portion 6 is separated from the concave portion 7, the universal joint 8 freely rotates around the horizontal blade shaft 5, and cannot transmit the rotational force of the connecting rod 14 to the horizontal blade 13.

The contact surface between the bearing 4 and the switching member 1 can change the meshing of the concave and convex portions 2 and 3 by pressing the spring 9 toward the universal joint 8 to contract it.
That is, the horizontal blade 13 can be rotated and fixed from one blowing angle to another blowing angle.

As described above, the swing operation of the horizontal blade 13 can be controlled by locking the pin 10 to the concave portion 11 or 12 of the switching member 1.
With such a structure, any of the four horizontal blades 13A to 13D shown in FIG. 2 can be separated from the swing operation. For example, when the driving mechanism of the horizontal blade 13D shown in FIG. 2 is set to the swing separated state shown in FIG. 3B, the horizontal blade 13D is fixed at a fixed angle, while the other horizontal blades 13A to 13C are connected to the motor 23. The swing operation is performed by receiving the driving force. Furthermore, it is possible to disconnect not only one horizontal blade but also any two or more horizontal blades from the swing operation. For example, there is a case where the driving mechanism of the horizontal blades 13C and 13D is set to the swing separated state.

[0033]

According to a first aspect of the present invention, a horizontal blade is provided by a combination of a first protrusion provided on a horizontal blade shaft and a second recess or a third recess provided in a switching portion. It can be disconnected from the drive. That is, there is an effect that the horizontal blade can be separated from the swing operation by a simple operation. In this case, when the drive mechanism is applied to an air conditioner having a plurality of outlets, the present invention can separate horizontal blades in any direction from swing operation.

On the other hand, the invention according to claim 2 has an effect that, in addition to the above effects, the horizontal blades separated from the swing operation can be reliably fixed in a fixed blowing direction. In addition, the angle of the blowing direction can be changed at any time. According to the above effects, the present invention can realize a comfortable airflow distribution according to the exhaust state of the air conditioner.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a component configuration of a driving mechanism of a horizontal blade according to an embodiment of the present invention.

FIG. 2 is a plan view of a decorative panel.

FIG. 3 is a cross-sectional view showing the operation of the driving mechanism of the horizontal blade according to one embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a ceiling-embedded air conditioner to which a driving mechanism of a horizontal blade according to an embodiment of the present invention is applied;

FIG. 5 is an explanatory diagram showing a problem.

FIG. 6 is an explanatory diagram showing a conventional technique.

FIG. 7 is an explanatory diagram showing a conventional technique.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 switching member 2 uneven portion (second uneven portion) 3 uneven portion (first uneven portion) 4 bearing 5 horizontal blade shaft 6 switching member coupling portion (second projecting portion) 7 recess (first recess) 8 universal joint 9 spring DESCRIPTION OF SYMBOLS 10 Pin (1st protruding part) 11 Concave part (3rd concave part) 12 Concave part (2nd concave part) 13, 13A, 13B, 13C, 13D Horizontal blade 14 Connecting rod 21 Decorative panel 22 Outlet 23 Motor (drive part)

Claims (2)

(57) [Scope of request for utility model registration] 1. A driving mechanism for a horizontal blade disposed at an air outlet of an air conditioner, comprising: (a) a connecting portion connected to a horizontal blade driving portion; and (b) a connecting portion connected to the horizontal blade. A horizontal blade shaft having a first protrusion; and (c) a first concave portion is provided on a surface coupled to the connecting portion and loosely fitted to the horizontal blade shaft, and facing the first protrusion. A joint portion; and (d) a second projecting portion which is inserted between the joint portion and the first projecting portion and which is inserted into the horizontal blade shaft and which can be fitted into the first concave portion, and is opposed to the joint portion. A switching portion formed at a rear end portion of the second recess portion, the second recess portion and a third recess portion shallower than the second recess portion; and a switching portion formed at the rear end portion facing the first projection portion. And the second protruding portion is inserted between the joint portion and the switching portion in a compressed state. A spring disposed so as to be located on the inside thereof, wherein the first projection is locked in the second recess so that the second projection is not fitted into the first recess. The size of the second recess is set, and the size of the third recess is set so that the second protrusion is fitted into the first recess when the first protrusion is locked in the third recess. The driving mechanism of the horizontal blade, which is set. (F) a bearing having a first uneven portion formed on a surface facing the first projecting portion, the bearing being inserted into the horizontal blade axis between the first projecting portion and the horizontal blade; A second concave / convex portion is formed at a rear end of the switching portion, and the bearing is located behind the switching portion only when the first protruding portion is locked in the second concave portion. The drive mechanism for a horizontal blade according to claim 1, wherein the bearing is disposed at a position where the bearing contacts an end portion.