JP3843613B2 - Embedded ceiling air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling-embedded air conditioner, and more specifically, a drive shaft of an output gear constituting a drive device for a wind direction change plate is regulated so as not to shake, and the drive device is provided on the wind direction change plate. It is related with the structure which enabled it to transmit the driving force of normally.
[0002]
[Prior art]
A conventional ceiling-embedded air conditioner, for example, as shown in FIG. 1, FIG. 2, and FIG. 7, blows on the four sides of a decorative panel 2 attached to the lower part of a main body casing 1 embedded in a ceiling surface. An outlet 3 is provided, and a wind direction changing plate 5 is rotatably supported by the support shaft portion 4 at the outlet 3 and connected to adjacent rotating shafts provided on both sides of the air direction changing plate 5. The body 6 is connected by a connecting means comprising a connecting member 7 at the corner portion of the decorative panel 2, and a driving device 8 for driving the wind direction changing plate 5 is provided at any one of the corner portions. The output gear 11 provided on the drive shaft 10a of the motor 10 constituting the drive device 8 has a gear portion that meshes with the output gear 11, and a spiral cam groove is formed on one surface. The formed cam gear 12 and the connecting direction by converting the rotation direction of the cam groove into a linear motion The wind direction changing plate 5 connected by the connecting means is rotated through a hook type universal joint 13 comprising a main shaft 13a and a lever 13b provided on the connecting means side transmitting to the stage. It was.
[0003]
However, since the drive shaft 10a of the output gear 11 constituting the drive device 8 is displaced, the output gear 11 undulates as shown by the broken line in FIG. 7, so that the drive force of the motor 10 is normal. There is a problem that the operation of rotating the wind direction changing plate 5 becomes unstable without being transmitted to the air.
[0004]
[Problems to be solved by the invention]
In the present invention, in view of the above-described problems, the drive shaft of the output gear constituting the wind direction change plate drive device is regulated so as not to shake, and the drive force of the drive device is normally transmitted to the wind direction change plate. An object is to provide a ceiling-embedded air conditioner that can be used.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides air outlets on four sides of the decorative panel, and wind direction change plates are pivotally supported by the support shafts at the air outlets, and provided on both sides of the air direction change plates. The connected body connected to the adjacent rotating shaft is connected by a connecting means such as a connecting member at the corner portion of the decorative panel, and the wind direction changing plate is driven at any one of the corner portions. In a ceiling-embedded air conditioner provided with a driving device for
The drive device includes a motor having an output gear, a cam gear having a gear portion meshing with the output gear on a peripheral surface, and a helical cam groove formed on one surface, and the cam groove And a hook-type universal joint provided on the side of the connecting means for converting the movement in the rotational direction into a linear motion and transmitting it to the connecting means, and a motor cover attached to a predetermined corner of the decorative panel, The motor and the cam gear are assembled on the inner surface side of the motor cover facing the decorative panel,
A restriction that restricts the shaft shake of the drive shaft of the motor that drives the output gear while being provided in the motor cover so as to be slidable while being provided with an annular groove on the output gear. It is the structure which provided the piece.
[0006]
Moreover, it has the structure which formed the said control piece in the reverse convex form by the cyclic | annular form corresponding to the said concave groove.
[0007]
Moreover, it is the structure which formed the clearance gap between the bottom face of the said ditch | groove, and the lower end of the said control piece.
[0008]
Furthermore, both sides of the restricting piece are formed in a curved shape.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described as examples based on the accompanying drawings.
1 to 5 and FIGS. 6 (A) and 6 (B), 1 is a main body casing that is embedded in the ceiling surface of the ceiling-embedded air conditioner, and 2 is the main body casing 1. The decorative grille 3 attached to the lower part, 3 is an air outlet provided on the four sides of the decorative grille 2, 5 is a wind direction changing plate pivotally supported by the support shaft part 4 at the air outlet 3, and 6 is the same A connecting body connected to the rotating shafts on both sides of the wind direction changing plate 5, a connecting member 7 for connecting the adjacent connecting bodies 6, and a driving device 8 for driving the wind direction changing plate 5.
[0010]
The driving device 8 has a motor 10 having an output gear 11, a support shaft portion 12a at the center, a gear portion meshing with the output gear 11 on the peripheral surface, and a spiral shape on one surface. The cam gear 12 accommodated in the cam gear accommodating portion 9a is formed, and the movement in the rotational direction by the cam groove 12b is converted into a linear motion and transmitted to the coupling means including the coupling member 7 and the like. A hook-type universal joint 13 comprising a main shaft 13a and a lever 13b provided on the connecting means side; and a motor cover 9 attached to a predetermined corner of the decorative panel 3. The motor 10 and the cam gear 12 Is assembled to the inner surface of the motor cover 9 facing the decorative panel 2,
An annular groove 11a is provided in the upper part of the output gear 11, while the motor cover 9 is slidably accommodated in the groove 11a to drive the output gear 11. It has a configuration with a regulating piece 9b that regulates the shaft shake of
As a result, the drive shaft 10a of the output gear 11 can be regulated so as not to be shaken, and the output gear 11 will not undulate as in the prior art described above with reference to FIG. Thus, the structure in which the driving force of the motor 10 is not transmitted normally and the rotating operation of the wind direction changing plate 5 does not become unstable is obtained.
[0011]
Further, since the restricting piece 9b is formed in a reverse convex shape with an annular shape corresponding to the recessed groove 11a, the restricting piece 9b is accommodated over the entire length of the recessed groove 11a. The drive shaft 10a can be effectively regulated so as not to be shaken.
[0012]
Further, by forming a gap a as shown in FIG. 6B between the bottom surface of the concave groove 11a and the lower end of the restricting piece 9b, the restricting piece 9b and the output gear 11 can be moved in the vertical direction. In addition to being able to absorb assembly errors, the restricting piece 9b accommodated in the recessed groove 11a can effectively restrict the shake of the drive shaft 10a.
[0013]
Further, by forming both sides 9c of the restriction piece 9b in a curved shape, the engagement state between the restriction piece 9b and the concave groove 11a is improved, and the restriction piece 9b can be slid more smoothly and freely. It is configured to be able to be accommodated in the concave groove 11a.
[0014]
With the above configuration, as shown in FIGS. 1 to 5 and FIGS. 6 (A) and 6 (B), the driving device 8 includes a motor 10 having an output gear 11 and a support shaft portion 12a at the center. A cam gear 12 having a gear portion that meshes with the output gear 11 on the peripheral surface, and a helical cam groove 12b formed on one surface, and a rotational direction by the cam groove 12b. A hook-type universal joint 13 consisting of a main shaft 13a and a lever 13b provided on the side of the connecting means for converting the movement into a linear motion and transmitting it to the connecting means consisting of the connecting member 7 etc. A motor cover 9 attached to a portion, and the motor 10 and the cam gear 12 are assembled on the inner surface of the motor cover 9 facing the decorative panel 2;
An annular groove 11a is provided in the upper part of the output gear 11, while the motor cover 9 is slidably accommodated in the groove 11a to drive the output gear 11. Because the regulation piece 9b that regulates the shaft runout of
The drive shaft 10a of the output gear 11 can be regulated so as not to be shaken, and the output gear 11 is prevented from undulating as in the prior art described above with reference to FIG. Thus, the ceiling-embedded air conditioner is configured such that the driving force of the motor 10 is not normally transmitted and the rotating operation of the wind direction changing plate 5 is not unstable.
[0015]
【The invention's effect】
As described above, according to the present invention, the drive shaft of the output gear that constitutes the wind direction change plate drive device can be regulated so as not to shake, and the drive force of the drive device can be normally transmitted to the wind direction change plate. It becomes a ceiling-embedded air conditioner.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner according to the present invention and a conventional example.
FIG. 2 is a perspective view showing a wind direction changing plate provided at an air outlet of a ceiling-embedded air conditioner according to the present invention and a conventional example, and a driving device for driving the air direction changing plate.
FIG. 3 is an enlarged perspective view of the driving device shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view of a driving device for driving a wind direction changing plate of a ceiling-embedded air conditioner according to the present invention and a conventional example.
FIG. 5 is a schematic cross-sectional view of a driving device for driving a wind direction changing plate of a ceiling-embedded air conditioner according to the present invention.
FIG. 6 is a schematic cross-sectional view of a drive device for driving a wind direction changing plate of a ceiling-embedded air conditioner according to the present invention, in which (A) shows a groove portion provided in an output gear 11 and a restriction piece accommodated therein; It is explanatory drawing before an assembly, (B) is explanatory drawing after an assembly.
FIG. 7 is a schematic cross-sectional view of a driving device that drives a wind direction changing plate of a ceiling-embedded air conditioner according to a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body casing 2 Cosmetic grill 3 Outlet 4 Support shaft part 5 Wind direction change board 6 Connection body 7 Connection member 8 Drive apparatus 9 Motor cover
9a Cam gear housing
9b Regulating piece
9c Both sides of the regulating piece
10 Motor
10a Drive shaft
11 Output gear
11a Groove
12 Cam gear
12a Support shaft
12b Cam groove
13 Hook type universal joint
13a spindle
13b Lever a Clearance

Claims (4)

Air outlets are provided on the four sides of the decorative panel, and a wind direction changing plate is pivotally supported by the support shaft portion at the outlet, and connected to adjacent rotating shafts provided on both sides of the air direction changing plate. The connecting body is connected by a connecting means made of a connecting member or the like at a corner portion of the decorative panel, and a ceiling embedded type in which a driving device for driving the wind direction changing plate is provided at any one of the corner portions. In air conditioner,
The drive device includes a motor having an output gear, a cam gear having a gear portion meshing with the output gear on a peripheral surface, and a helical cam groove formed on one surface, and the cam groove And a hook-type universal joint provided on the side of the connecting means for converting the movement in the rotational direction into a linear motion and transmitting it to the connecting means, and a motor cover attached to a predetermined corner of the decorative panel, The motor and the cam gear are assembled on the inner surface side of the motor cover facing the decorative panel,
A restriction that restricts the shaft shake of the drive shaft of the motor that drives the output gear while being provided in the motor cover so as to be slidable while being provided with an annular groove on the output gear. A ceiling-embedded air conditioner characterized by providing a piece. 2. The ceiling-embedded air conditioner according to claim 1, wherein the restriction piece is formed in an inverted convex shape by an annular shape corresponding to the concave groove. The ceiling-embedded air conditioner according to claim 1 or 2, wherein a gap is formed between a bottom surface of the concave groove and a lower end of the restriction piece. The ceiling-embedded air conditioner according to any one of claims 1 to 3, wherein both sides of the restriction piece are formed in a curved shape.

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