JP3750298B2 - Recessed ceiling air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling-embedded air conditioner, and more particularly to a configuration of a suction grill opening / closing part.
[0002]
[Prior art]
As shown in FIG. 1, the conventional ceiling-embedded air conditioner is provided with a suction grill 2 that can be opened and closed at the center of the decorative panel 1, and the opening and closing support portion of the suction grill 2 is as shown in FIG. A hook metal fitting 30 locked to the suction grill 2 is hooked on a hook portion 1e formed on the decorative panel 1, or a bearing portion 2a formed on the suction grill 2 as shown in FIG. The shaft 31 was inserted into the bearing portion 1 f formed on the decorative panel 1.
[0003]
[Problems to be solved by the invention]
However, in this configuration, when the suction grill is attached / detached for cleaning or the like, there is a problem that it is difficult to attach / detach the suction grill. In view of the above problems, an object of the present invention is to provide a ceiling-embedded air conditioner in which a suction grill can be easily attached and detached.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a ceiling-embedded air conditioner having a suction grill that can be opened and closed at the center of a decorative panel. A cylindrical opening / closing shaft is provided at the tip of the support arm that extends to the rear surface, and a plurality of ribs that sandwich the opening / closing shaft from both sides of the shaft are provided on the back surface in the vicinity of the opening of the decorative panel that houses the suction grille. Further, the rib on the opening side with respect to the opening / closing shaft is provided with a notch having the same width as the support arm, and a protruding portion protruding toward the opening / closing shaft is provided at the tip of the rib on the side farther from the opening. And the back surface of the decorative panel sandwich the opening / closing shaft.
[0005]
In addition, a curved surface equivalent to the shaft radius of the opening and closing shaft is formed at the corner of the base on the opening and closing shaft side of the rib on the opening side and the convex portion at the tip of the rib farther from the opening. It has become.
[0006]
Further, in the ceiling-embedded type air conditioner provided with a closable suction grille in the center of the decorative panel, projecting from the one side of the suction grille, further circle to the tip of the support arm extending the tip downwards The decorative panel is provided with a column-shaped opening / closing shaft, a flange is provided around the back side of the opening of the decorative panel that houses the suction grille, and an opening hole through which the support arm and the opening / closing shaft are inserted is formed in the flange. A first rib having a notch having the same width as the support arm is formed in the vicinity of the opening on the back surface, and a second rib for sandwiching the opening / closing shaft with the first rib is provided above the opening hole of the flange. A step portion is provided so as to project from an edge, and a step portion is formed on the opening / closing shaft side of the second rib to sandwich the opening / closing shaft with the back surface of the decorative panel.
[0007]
In addition, a curved surface equivalent to the shaft radius of the opening / closing shaft is formed at the corner of the base on the opening / closing shaft side of the first rib on the opening side and the step portion of the second rib. .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
With the configuration as described above, the ceiling-embedded air conditioner can be easily attached and detached.
[0009]
【Example】
First, an embodiment of the present invention shown in FIGS. 1 to 5 will be described. As shown in FIG. 1, a suction grill 2 is provided at the center of the decorative panel 1 that is installed facing downward on the ceiling surface, and four air outlets 7 facing in different directions are provided on the four sides of the outer periphery, and the upper surface of the suction grill 2. The air blower 4 driven by the motor 5 is provided on the upper side, and the heat exchanger 6 is provided on the outer periphery of the air blower fan 4. The air filtered and sucked by the filter 3 and heat-exchanged by the heat exchanger 6 is blown out from the air outlet 7. As shown in FIG. 2 to FIG. 5, the suction grill 2 is made of a synthetic resin such as ABS (acrylonitrile butadiene styrene). The extended support arm 8 is integrally formed, and a cylindrical opening / closing shaft 9 having a shaft diameter d is integrally formed in parallel with one side of the suction grill 2 at the tip of the support arm 8. On the other hand, a flange 10 is provided around the back side of the opening 1a for housing the suction grill 2 of the decorative panel 1 formed of synthetic resin such as ABS (acrylonitrile butadiene styrene), and the support arm 8 is provided on the flange 10. And an opening hole 11 through which the opening / closing shaft 9 is inserted, and a rib 12 having a protrusion amount h that is substantially half of the shaft diameter d is provided in the vicinity of the opening 1a on the back surface of the decorative panel 1. Are formed integrally on both sides, and a curved surface 13 having an axial radius d / 2 is formed at the base of the rib 12. The rib 14 faces the rib 12 and sandwiches the opening / closing shaft 9. A protruding portion 15 having a projected amount h of approximately half of the shaft diameter d is integrally formed on the back surface of the decorative panel 1, and a curved surface 16 having an axial radius d / 2 is formed at the base of the protruding portion 15.
[0010]
In the above configuration, how to assemble the decorative panel 1 and the suction grill 2 will be described. The support arm 8 and the opening / closing shaft 9 are inserted into the opening hole 11, and the opening / closing shaft 9 is pressed against the rib 14 and the convex portion 15 to be bent. Between the curved surface 13 and the curved surface 16 at the base of the convex portion 15.
[0011]
Next, another embodiment of the present invention shown in FIG. 6 will be described. The formation position of a support arm and a rib differs from the said Example. The support arm 8 is provided at both ends of the opening / closing shaft 9, while the ribs 14 provided with the convex portions 15 are provided at both ends of the opening / closing shaft 9, and the rib 12 on the opening 1 a side is provided at the center of the opening / closing shaft 9. Provide. By doing in this way, the said opening-and-closing axis | shaft 9 is supported at the both ends by the said support arm 8, and intensity | strength improves.
[0012]
Next, another embodiment of the present invention shown in FIG. 7 will be described. The rib forming position and shape are different from those of the other embodiments. The first rib 17 is formed in the same position at the same position as the rib 12 of the other embodiment, and the second rib 19 for holding the opening / closing shaft 9 by the first rib 17 is formed in the opening of the flange 10. A step 20 is formed so as to project from the upper edge of the hole 11, and on the side of the opening / closing shaft 9 of the second rib 19, the step 20 is sandwiched between the opening / closing shaft 9 and the back surface of the decorative panel 1. A curved surface 21 having an axial radius d / 2 is formed at the base. By doing so, the length of the second rib 19 can be increased, and when the decorative panel 1 and the suction grill 2 are assembled, the second rib 19 is easily bent and easily assembled.
[0013]
The protrusion amount h of the convex portion 15 at the tip of the rib 14 on the side farther from the opening 1a or the step amount of the step portion 20 of the second rib 19 and the protrusion amount h of the rib 12 on the opening portion 1a side or the first By making the protrusion amount h of the one rib 17 be substantially half of the shaft diameter d of the opening / closing shaft 9, the decorative panel 1 can be easily assembled to the suction grill 2 and can be made difficult to come off.
[0014]
On the opening / closing axis 9 side, the rib 12 or the first rib 17 on the opening 1a side and the convex portion 15 on the tip of the rib 14 on the side farther from the opening 1a or the step portion 20 of the second rib 19 are provided. By forming a curved surface equivalent to the shaft radius d / 2 of the opening / closing shaft 9 at the corner of the base, the opening / closing shaft 9 rotates smoothly and the opening / closing shaft 9 and the rib are less likely to wear.
[0015]
By integrally forming the suction grill 2, the support arm 8, and the opening / closing shaft 9, the number of parts can be reduced and the dimensional accuracy can be increased.
[0016]
By integrally forming the decorative panel 1 and the ribs 12 and 14 or the decorative panel 1 and the first rib 17 and the second rib 19, the number of parts can be reduced and the dimensional accuracy can be increased. it can.
[0017]
【The invention's effect】
As described above, according to the present invention, the ceiling-embedded air conditioner can be easily attached and detached.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the overall configuration of the present invention and a conventional ceiling-embedded air conditioner.
FIG. 2 is an exploded perspective view of a main part of an embodiment of a ceiling-embedded air conditioner according to the present invention.
FIG. 3 is a perspective view of an essential part of an embodiment of the ceiling-embedded air conditioner according to the present invention.
FIG. 4 is a cross-sectional view of the main part of an embodiment of the ceiling-embedded air conditioner according to the present invention, showing a state where the suction grille is opened.
FIG. 5 is a cross-sectional view of a main part of an embodiment of the ceiling-embedded air conditioner according to the present invention, showing a state in which the suction grill is closed.
FIG. 6 is an exploded perspective view of a main part of another embodiment of the ceiling-embedded air conditioner according to the present invention.
FIG. 7 is an exploded perspective view of a main part of another embodiment of the ceiling-embedded air conditioner according to the present invention.
FIG. 8 is an exploded perspective view of a main part of a ceiling-embedded air conditioner according to a conventional example.
FIG. 9 is an exploded perspective view of a main part of a ceiling-embedded air conditioner according to another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Decorative panel 1a Opening part 2 Suction grill 3 Opening / closing axis | shaft 8 Support arm 9 Opening / closing axis | shaft 10 Flange 11 Opening hole 12 Rib 13 Curved surface 14 Rib 15 Convex part 16 Curved surface 17 First rib 18 Curved surface 19 Second rib 20 Step part 21 Curved surface d Shaft diameter h Projection amount

Claims (4)

In a ceiling-embedded air conditioner that has a suction grill that can be opened and closed in the center of the decorative panel,
A cylindrical opening / closing shaft is provided at the front end of the support arm that protrudes from one side of the suction grille and further extends at the front end of the suction grille, and is provided on the back surface near the opening of the decorative panel that houses the suction grille. A plurality of ribs sandwiching the opening / closing shaft from both sides of the shaft, and further, a rib on the opening side of the opening / closing shaft is provided with a notch having the same width as the support arm, and a rib on the side farther from the opening is provided. A ceiling-embedded air conditioner characterized in that a convex portion protruding toward the opening / closing shaft is provided at the tip, and the opening / closing shaft is sandwiched between the convex portion and the back surface of the decorative panel.   A curved surface equivalent to the shaft radius of the opening / closing shaft is formed at the corner of the base on the opening / closing shaft side of the rib on the opening portion side and the convex portion at the tip of the rib farther from the opening portion. The ceiling-embedded air conditioner according to claim 1, wherein the air conditioner is embedded in a ceiling. In the ceiling-embedded air conditioner with a suction grill that can be opened and closed in the center of the decorative panel,
A cylindrical opening / closing shaft is provided at the tip of a support arm that protrudes from one side of the suction grille and further extends at the tip of the suction grille, and around the back side of the opening of the decorative panel that houses the suction grille. A flange is provided, an opening hole through which the support arm and the opening / closing shaft are inserted is formed in the flange, and a first rib having a notch having the same width as the support arm is formed in the vicinity of the opening on the back of the decorative panel A second rib sandwiching the opening / closing shaft with the first rib is projected from an upper edge of the opening hole of the flange, and the opening / closing shaft is disposed on the opening / closing shaft side of the second rib. A ceiling-embedded air conditioner characterized in that a stepped portion is formed to be sandwiched by the back surface of the ceiling.   A curved surface equivalent to the axial radius of the opening / closing shaft is formed at the corner of the base on the opening / closing shaft side of the first rib on the opening side and the step portion of the second rib. The ceiling-embedded air conditioner according to claim 3.

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