JP2015137842A - Ceiling embedded air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling embedded air conditioner capable of enlarging an area of a suction grille by removing an inner frame of a panel body, and improving design of a decoration panel by eliminating a division line between the inner frame of the panel body and the suction grille.SOLUTION: A ceiling embedded air conditioner includes an air conditioner body mounted in a ceiling, and a decoration panel mounted on a lower surface portion of the air conditioner body and exposed indoors from the ceiling. The decoration panel is composed of: a rectangular suction grille openably/closably disposed on the central portion; a panel body surrounding an outer circumference of the suction grille and including a rectangular supply opening along each side; a hinge portion for mounting the suction grille to the panel body; and a fixing portion for keeping the suction grille in a closed state. The hinge portion is disposed outside in the longitudinal direction, of the supply opening, and each side of the suction grille is disposed along an inner edge of the supply opening.

Description

  The present invention relates to a ceiling-embedded air conditioner including a suction grill that is attached to a decorative panel so as to be freely opened and closed.

  In the ceiling-embedded air conditioner, the air conditioner main body is mounted in the ceiling, and the lower surface opening is closed with a decorative panel and exposed to the room. The decorative panel includes a regular rectangular suction grille, which is opposed to a suction port provided in the air conditioner body. An air outlet is provided on the outer periphery of the suction grill to blow out heat exchange air.

  In other words, the decorative panel has a suction grille at the center, and the periphery of the decorative panel is surrounded by a panel body that is a frame having a square shape. An elongated rectangular outlet is provided along each side of the panel body. A louver that adjusts the direction of the heat exchange air to be blown out is attached to the blowout opening.

Japanese Patent No. 4226864

  In addition, a hinge receiving hole is provided in the panel main body with respect to the hinge provided in the suction grille, and a locking portion is provided in the panel main body with respect to the slide-type fixing piece provided in the suction grille. Is supported on the panel body so that it can be opened and closed.

  However, the panel body must be provided with a hinge receiving hole and a locking portion, and the frame width of the panel body is increased correspondingly, so that the suction grille is enclosed between each outlet and the outer periphery of the suction grille. A frame is formed. Thereby, a boundary line (partition line) between the suction grille and the panel main body inner frame appears on the lower surface of the decorative panel. Although the lower surface of the decorative panel requires sufficient consideration as a decorative surface, warpage or the like is likely to occur at the divided portion of the inner frame of the panel body and the suction grille, and it takes time and effort to make the float and the gap inconspicuous.

  For this reason, the ceiling-embedded type can be used to remove the inner frame of the panel body to increase the area of the suction grille and remove the dividing line between the inner frame of the panel body and the suction grille, thereby improving the design of the decorative panel. There is a need for air conditioners.

  The ceiling-embedded air conditioner includes an air conditioner body that is installed in the ceiling, and a decorative panel that is attached to the lower surface of the air conditioner body and is exposed to the room from the ceiling. A rectangular suction grill provided to be openable and closable, and a panel body that surrounds the outer periphery of the suction grill and has a rectangular outlet along each side, and a hinge portion that attaches the suction grill to the panel body, A fixing portion for maintaining the suction grille in a closed state, the hinge portion is provided on the outer side in the longitudinal direction of the blowout port, and each side of the suction grille is provided along the inner edge of the blowout port.

The perspective view in the state which looked up at the ceiling embedded type air conditioner based on one Embodiment. The bottom view of the ceiling embedding type air conditioner based on the embodiment. The perspective view which opened the suction grille and looked up at the makeup | decoration panel based on the embodiment, and the perspective view which expanded the hinge part. The perspective view which showed the upper surface side of the suction grill based on the embodiment. The figure which expanded the A section of FIG. 4, the figure which expanded the B section of FIG. 4, and the figure which expanded the hooking hole based on the embodiment. The top view of the suction grille provided with the latch part in a mutually different position based on the embodiment. The cross-sectional perspective view of a part of decorative panel of the modification based on the embodiment, and the perspective view of part of the decorative panel. The perspective view of the decorative panel of the modification further based on the embodiment, and the exploded perspective view of this decorative panel. The perspective view of the corner cover based on the embodiment, and the perspective view which expanded the mutually different part of the corner cover. Sectional drawing explaining attachment of a corner cover based on the embodiment, and sectional drawing explaining attachment of the corner cover of a different site | part. The perspective view before removing and attaching a corner cover from the panel main body based on the embodiment, and the figure which expanded the corner cover. The perspective view of the state which looked up at the air conditioner main body which removed the decorative panel based on the embodiment, the perspective view of a metal fitting part, and the perspective view of a stepped volt | bolt. The upper surface perspective view of the decorative panel based on the embodiment. The perspective view of the state which looked up at the air conditioner main body based on the embodiment, and the figure which expands the attachment part with respect to the air conditioner main body of a decorative panel, and shows in order of attachment. The figure which expands the attachment part with respect to the air conditioner main body of a decorative panel based on the embodiment, and demonstrates in order of attachment.

Hereinafter, the present embodiment will be described with reference to the drawings.
FIG. 1 is a perspective view in a state where a ceiling-embedded air conditioner is looked up. FIG. 2 is a bottom view of the ceiling-embedded air conditioner.

  The ceiling-embedded air conditioner is inserted from the indoor side into a mounting opening provided on the ceiling plate, and is suspended and fixed to a so-called ceiling back via a hanging bolt or the like, It is comprised from the decorative panel 2 mentioned later which is attached to the lower surface part of this air conditioner main body 1, and is exposed indoors from a ceiling board.

  The air conditioner main body 1 includes a sheet metal casing 3 having a lower surface opened and a thin metal plate processed into a top plate portion 3a and a side surface portion 3b. A heat insulating material made of a polystyrene foam material or the like is attached to the inner peripheral surface of the casing 3, and the entire inner peripheral surface is covered with the heat insulating material. Therefore, the air conditioner body 1 has a heat insulating structure.

  A blower is disposed at a substantially central portion inside the air conditioner body 1. This blower includes a so-called centrifugal fan that sucks air from the axial direction and blows it out in the circumferential direction. Since the upper part of the blower is covered with the top plate portion 3a, the lower surface opening of the casing 3 of the air conditioner body 1 is the suction side of the blower.

  A heat exchanger having a substantially square frame shape in a plan view is disposed so as to surround the periphery of the blower which is the blowing side of the blower. A drain pan is provided along the lower part of the heat exchanger, and receives drain water generated by the heat exchange action of the heat exchanger during cooling operation. The drain water collected in the drain pan is drained by a drain pump.

  The opening on the lower surface of the casing 3 is closed by the decorative panel 2. The decorative panel 2 is, for example, molded from a synthetic resin material and is beautifully finished. The decorative panel 2 is exposed to the room from the ceiling plate and shields the gap between the air conditioner main body 1 circumferential surface and the ceiling plate mounting opening. To do.

  Further, the decorative panel 2 is provided at a substantially central portion and is supported by a hinge portion which will be described later and attached to be freely opened and closed. The decorative panel 2 is provided over the entire circumference of the suction grill 4 and is integrally connected to the casing 3. It consists of a panel body 5. The suction grill 4 has a regular square shape, and the panel body 5 has a frame shape surrounding the suction grill 4.

  The suction grill 4 has a peripheral end formed in a flat plate shape, and a grill portion 4a is provided at a central portion excluding the peripheral end. A filter (not shown) is detachably attached to the rear surface (upper surface) of the grill portion 4a, and is opposed to a suction port 6 that is an opening portion of a bell mouth provided on the lower surface portion of the air conditioner body 1.

  During maintenance, the suction grill 4 can be opened via the hinge portion, the suction port 6 can be opened, and the suction grill 4 can be suspended in a vertical state. From this state, the filter can be removed by removing the filter from the suction grill 4.

  Along the outer sides of the suction grill 4, in other words, along the inner sides of the panel main body 5, elongated blowout ports 7 having short (width) direction dimensions shorter than the longitudinal dimensions are provided. A louver 8, which is a wind direction guide plate for closing the air outlet 7 so as to be freely opened and closed, is attached to the air outlets 7.

  The panel main body 5 will be described. Both side end portions a in the longitudinal direction of the respective outlets 7 and the vertical and horizontal side ends b of the grill portion 4a are opposed to each other. The outlet 7 is provided with a predetermined width from the outer edge of the suction grill 4, and the panel piece 4 b extends from the outer edge of the outlet 7 to the outer edge of the decorative panel 2.

The positions of both side end portions a in the longitudinal direction of the outlet 7 and the panel piece portion 4b coincide with each other. A corner cover 4c formed in a substantially L shape in a plan view is detachably fitted in a corner portion of the panel body 5 excluding the blowout port 7 and the panel piece portion 4b.
Since the panel main body 5 has a regular rectangular frame shape, four sets of the outlet 7 provided with the louver 8, the panel piece 4b and the corner cover 4c are provided.

  The louver 8 is preferably made of the same material and the same color as the suction grill 4 and the panel body 5 in appearance. The louver 8 is an elongated rectangular flat plate and is slightly smaller than the outlet 7 in both vertical and horizontal dimensions so as not to hinder the opening and closing of the outlet 7. However, when the outlet 7 is closed with the louver 8, the dimensions must be set so that there is no noticeable gap between the outlet 7 and the louver 8.

In the ceiling-embedded air conditioner configured as described above, the louver 8 completely closes the outlet 7 when the operation is stopped. At this time, since the louver 8, the panel piece 4b, and the corner cover 4c are all in the same plane, the panel body 5 looks as if it is a single plate.
When the operation start signal is input, the blower is driven, and the indoor air is guided to the suction port 6 formed in the bell mouth via the suction grill 4 and sucked into the air conditioner main body 1.

  In the air conditioner main body 1, indoor air flows through the heat exchanger and is heat-exchanged. The heat exchange air heat-exchanged by the heat exchanger is guided from the blow-out port 7 to the louver 8 opened at a predetermined angle, and blown out into the room as cold air or hot air, thereby performing an air conditioning operation in the room.

Next, the suction grill 4 in the decorative panel 2 and the hinge portion H that supports the suction grill 4 so as to be freely opened and closed will be described in detail.
3A is a perspective view of the state in which the suction grill 4 is opened and the decorative panel 2 is looked up, and FIG. 3B is an enlarged perspective view of the hinge 11 portion.
FIG. 4 is a perspective view in which a part of the corner cover 4 c and the suction grill 4 are removed from the panel body 5 and the upper surface side of the suction grill 4 is shown.
5A is an enlarged view of part A in FIG. 4, FIG. 5B is an enlarged view of part B in FIG. 4, and FIG. 5C is an enlarged view of the hooking hole 13. .
FIGS. 6A and 6B are plan views of the suction grill 4 in which the latch portions 12 are provided at different positions with respect to the hinge 11.

As described above, the decorative panel 2 is composed of the suction grill 4 having a regular square shape at the center and the panel main body 5 having a regular square frame provided in the peripheral portion of the suction grill 4.
That is, the outer dimensions and the like of the panel main body 5 are the same as those of the conventional structure, but the inner frame formed between the panel main body 5 and the suction grill 4 has been removed so that each outlet The difference is that the external dimensions of the suction grill 4 are increased to 7.

  Here, along the entire inner periphery of the panel body 5, a contact plate portion 10 that receives the peripheral edge of the suction grill 4 is provided. The blowout port 7 is provided on the outer side of each side of the abutting plate portion 10, and the outside of the blowout port 7 is the panel piece portion 4b. The corner cover 4c is attached to the corner of the panel body 5 as described above.

  On one side of the suction grill 4, hinges 11 constituting the hinge portion H project from both side ends on the back side. Since each hinge 11 is provided on the back surface side of the suction grill 4, the hinge 11 cannot be seen from the lower surface side which is the decorative surface of the suction grill 4 in the assembled state. The hinge 11 includes a hinge main body 11a that protrudes from the back surface of the suction grill 4 and pins 11b that protrude to both sides of the distal end portion of the hinge main body 11a.

A latch portion 12, which is a fixing portion that maintains the suction grille 4 in a closed state, is provided at a side portion opposite to the one side portion where the hinge 11 of the suction grille 4 is provided, and on both side ends on the back side of the suction grille 4.
The latch portion 12 includes a guide piece portion 12a provided with a long hole-shaped guide hole along a side portion in a direction orthogonal to the one side portion on which the hinge 11 is provided, and a guide hole of the guide piece portion 12a. The slide piece 12b is slidably inserted in the guide hole and protrudes from the guide hole, and an operation knob 12c provided integrally with one end of the slide piece 12b.

  One end of the operation knob 12c protrudes in the direction opposite to the hinge 11, and further, below the decorative panel 2 from the gap (S in FIG. 2) between the outer edge of the suction grill 4 and the inner edge of the panel body 5 (corner cover 4c). Protrusively toward. The slide piece 12b can be operated by grasping the operation knob 12c. The slide piece 12b can be projected and retracted from the outer edge of the suction grille 4 in accordance with the operation on the operation knob 12c.

  On the other hand, the contact plate portion 10 of the panel body 5 is provided with a hooking hole 13 that receives the hinge 11 of the hinge portion H and the slide piece 12b of the latch portion 12 at both side end portions of each side portion. As shown in FIG. 5 (C), these hooking holes 13 are T-shaped holes provided with hooking portions 13a at the lower ends of both ends, and the pins 11b of the hinge 11 are hooked on the hooking portions 13a. Further, the slide piece 12b of the latch portion 12 is inserted between the hook portions 13a.

  Normally, when the air conditioning operation is performed or when the air conditioning operation is stopped, the suction grille 4 is substantially in the same plane as the panel main body 5 and is made of the same material and the same color.

  The conventionally used inner frame is removed, and the shape area of the suction grill 4 is increased accordingly, and the outer shape of the suction grill 4 is determined substantially along the inner side of the blowout port 7, so that the inner frame, the suction grill 4 and the inner grill The dividing line between the frame and the panel body 5 could be eliminated. Therefore, the beauty of the decorative panel 2 can be improved.

  At the time of maintenance, the operation knob 12c of the latch portion 12 protruding from the gap between the outer peripheral edge of the suction grill 4 and the inner peripheral edge of the panel body 5 is picked, and this is slide-operated. When the operation knob 12c is operated inward, the slide piece 12b comes out of the hooking hole 13 of the panel body 5, and the restriction on the position of one end of the suction grill 4 is released.

  That is, as shown in FIGS. 3A and 3B, the suction grill 4 can be rotated around the hinge 11. When this state is maintained, the suction grill 4 is lifted and the hinge 11 is pulled out from the hooking hole 13, so that the catch between the suction grill 4 and the panel body 5 is released, and the suction grill 4 can be removed.

  When attaching the suction grille 4 to the panel body 5 again, the suction grille 4 is lifted and the hinge 11 is engaged with the hooking hole 13, and the suction grille 4 is rotated around the hinge 11 so that it is flush with the panel body 5. Change posture. By holding the state and operating the operation knob 12c and inserting the slide piece 12b into the hooking hole 13, the suction grill 4 is fixed to the panel body 5 and the decorative panel 2 is obtained.

  Here, as shown in FIG. 6 (A), the operation knob 12b is operated in the direction of the arrow d, but the present invention is not limited to this, and as shown in FIG. 6 (B), the operation knob 12b. The suction grill 4 may be provided with a latch portion 12 so that it can be engaged and disengaged by operating in the direction of the arrow e perpendicular to the arrow d.

  In any case, the hinge 11 that constitutes the hinge portion H and the hook hole 13 that the hinge 11 can be freely attached to and detached from are provided outside the both end portions in the longitudinal direction of the outlet 7. By removing the frame, the suction grill 4 can be expanded almost to the inside of the outlet 7.

  Further, by providing two hook holes 13 at the corner portion of the abutting plate portion 10, the suction grille 4 is turned 90 ° to the right or left from the position shown in the drawing, or 180 °. Installation in a deflected state is possible.

Next, a modified decorative panel 2A will be described.
FIG. 7A is a sectional perspective view of a part of the decorative panel 2A, and FIG. 7B is a perspective view of a part of the decorative panel 2A.

  Here, the external dimensions of the suction grille 4 and the panel main body 5 constituting the decorative panel 2A, the material of the decorative surface, and the suction grille 4 are pivotally supported by the panel main body 5 via the hinge portion H. There is no change about etc. However, the difference is that the suction grill 4 is thicker than the panel main body 5 described above.

  Accordingly, the suction grill 4 slightly protrudes toward the decorative surface side, which is the lower surface, with respect to the panel body 5. By intentionally projecting the suction grille 4 from the decorative surface of the decorative panel 2A, the gaps and floats caused by warpage or the like that is likely to occur in a part of the suction grille 4 and the panel body 5 are made inconspicuous. Improvements can be gained.

FIG. 8A is a perspective view of a decorative panel 2B according to another modification, and FIG. 8B is an exploded perspective view of the decorative panel 2B.
The suction grill 4 and the panel main body 5 may be those described above, but are a decorative panel 2B in which the decorative surface (lower surface) of the suction grill 4 is covered with a perforated decorative plate K.

  The perforated decorative board K is a flat plate that is perforated with various designs such as punching holes, cross-shaped holes, or petal-shaped holes at predetermined intervals over the entire surface. Material can also be selected.

The perforated decorative board K has the same vertical and horizontal dimensions as the suction grill 4. Although not clearly shown, a perforated decorative plate K is provided with a detachable latching piece on the periphery of the suction grill 4 on the periphery.
Therefore, if the suction grille 4 slightly protrudes from the panel body 5 as described above with reference to FIGS. 7A and 7B, the perforated decorative plate K can be easily attached and detached.

However, by ensuring a certain gap between the outer peripheral edge of the suction grill 4 and the inner peripheral edge of the panel body 5, the suction grill 4 and the panel body 5 as described above with reference to FIGS. Even if it exists, the perforated decorative board K can be attached.
In any case, a perforated decorative board K of various designs, colors, and materials can be selected according to the atmosphere in the room equipped with this ceiling-embedded air conditioner, and the aesthetic appearance can be improved.

Next, the corner cover 4c will be described in detail.
FIG. 9 is a perspective view of the corner cover 4c and an enlarged perspective view of different portions of the corner cover 4c.
10A is a cross-sectional view for explaining the attachment of the corner cover 4c to the panel body 5, and FIG. 10B is a cross-sectional view for explaining the attachment of the corner cover 4c at a site different from FIG. 10A. is there.

  FIG. 11A is a perspective view showing a state in which the corner cover 4c is removed from the panel body 5, or a state before the corner cover 4c is attached to the panel body 5, and FIG. 11B shows the corner cover 4c in the same state. FIG.

As described above, the corner cover 4c is formed of a plate body that is formed in an approximately L shape in plan view, and the wall portion 40c is integrally formed on the back surface side (upper surface side in the drawing) of the decorative surface along the entire periphery. Is done.
As shown in FIG. 9, the height dimension of the wall 40c is the highest at the outer peripheral edge g, which is the outer peripheral edge side of the panel body 5, and the other side edges that are in contact with the outlet 7 and the both side edges of the panel piece 4b. The edge h is low, and the inner peripheral edge i which is the inner peripheral edge side of the panel body 5 is formed lower. A corner rib 40d is provided in parallel with a predetermined gap between a part of the lowest inner peripheral edge i and reinforces the corner cover 4c.
Two triangular hooking claws 15 projecting outward are provided integrally with the wall 40c at corners where the inner peripheral edge i of the corner cover 4c and the side edges h are in contact with each other.

One string attachment claw 16 for attaching one end of a fall prevention string, which will be described later, is provided on the rear surface of the corner cover further inside the corner rib 40d described above.
Further, on the inner side surface of the wall portion 40c, a first fixing claw portion 17 is integrally projected at a portion close to both side edges h of the outer peripheral edge g, and a second portion is provided at a corner portion of the wall portion 40c. A fixed claw portion 18 is provided. The first fixed claw portion 17 and the second fixed claw portion 18 each have three claws.

  In the 1st fixed nail | claw part 17, the one surface contact claw 19 is provided in the both-sides edge h side of the corner cover 4c, and the two line contact claw 20 is provided in the corner | angular part side of the wall part 40c. In the second fixed claw portion 18, three line hitting claws 20 are provided.

  The hook claw 15 and the first and second fixed claw portions 17 and 18 described above are provided integrally with the wall portion 40c constituting the side portion of the corner cover 4c. That is, neither the hooking claw 15 nor the first and second fixed claw portions 17 and 18 are directly provided on the upper surface of the corner cover 4c opposite to the decorative surface.

  When the corner cover 4c is formed of a synthetic resin material, a protrusion having a certain size is provided on the upper surface of the corner cover 4c regardless of the hooking claws 15 and the first and second fixing claws 17 and 18. In addition, a concave portion called so-called meat shrinkage occurs on the decorative surface side of the portion where the protrusion is provided. When the corner cover is attached to the panel body, the recessed portion is conspicuous and the aesthetic appearance is impaired.

Here, the hooking claw 15 and the first and second fixing claw portions 17 and 18 are not provided on the back surface of the corner cover 4c, but are integrally provided on the wall portion 40c that forms the side surface portion, so that meat pulling occurs on the decorative surface. It does n’t matter and you do n’t lose your aesthetic.
In addition, although the string attachment claw 16 for attaching one end of the fall prevention string, which will be described later, is provided on the back surface of the corner cover 4c, since this is extremely small, there is no meat pulling on the decorative surface of the corner cover 4c. Mu

  In order to attach such a corner cover 4 c to the corner portion of the panel body 5, the corner cover 4 c is inclined and the hooking claws 15 are engaged with holes (not shown) of the panel body 5. Then, the corner cover 4 c is rotated so as to be flush with the panel body 5 around the hooked claws 15.

  Then, the surface contact claw 19 and the line contact claw 20 constituting the first fixed claw portion 17 and the second fixed claw portion 18 are engaged with the locking projection 22 of the panel body 5 to attach the corner cover 4c. Is completed.

  Specifically, it is as shown in FIG. FIG. 10A shows a state in which the surface contact claw 19 is engaged with the latching protrusion 22 of the panel body 5, and FIG. 10B shows a state in which the line contact claw 20 is engaged with the latching protrusion 22. Is shown.

  The surface contact claw 19 has an angle of approximately 90 ° between the vertical plate surface and the lower surface of the claw, and engages the end surface and the upper surface of the latching projection 22 in a substantially intimate state. That is, the vertical plate surface of the surface contact claw 19 is in close contact with the end surface of the latching protrusion 22, and the lower surface of the surface contact claw 19 is in close contact with the upper surface of the engagement protrusion 22. The surface contact claw 19 and the latching protrusion 22 are engaged in a planar shape, so that the engagement is relatively strong.

On the other hand, the angle between the vertical plate surface and the lower surface of the claw of the line contact claw 20 is much larger than 90 °. Since the angle formed between the end surface and the upper surface of the latching protrusion 22 is 90 °, only the claw base end portion of the line contact claw 20 is only engaged with the end surface corner of the latching projection 22. .
In other words, the line pawl 20 is only linearly engaged with the latching protrusion 22, and the engagement force is weaker than that of the surface pawl 19.

  As described above, the surface contact claw 19 of the first fixed claw portion 17 is engaged with the latching protrusion 22 of the panel body 5, and the corner cover 4c is securely attached to the panel body 5. 20 is the extent to contact the latching protrusion 22. Note that all three of the second fixed claw portions 18 are constituted by line contact claws 20, but the line contact claw 20 has an engagement force with the latching protrusion 22 as compared with the surface contact claw 19. Even if it is said to be weak, it is equipped with three line nail, so it will not come off due to its own weight or a little impact.

In order to remove the corner cover 4c from the panel main body 5 during maintenance, etc., one side of the corner cover 4c is held and biased in a direction away from the panel main body 5c.
For example, when the corner portion of the corner cover 4c shown in FIG. 9 is forcibly pulled down, the line contact claw 20 in the second fixed claw portion 18 provided at the corner portion of the wall portion 40c is brought into contact with the panel body 5. Depart from part 22. The three line contact claws 20 are easily detached from the latching protrusions 22 because the engagement state with the latching protrusions 22 is weaker than that of the surface contact claws 19.

  The corner portion of the corner cover 4c is detached from the panel body 5, and a downward force is easily applied. If the corner cover 4 c is continuously pulled down, the two line contact claws 20 of the first fixed claw portion 17 are separated from the latching protrusion 22. As the line contact claw 20 is separated from the latching projection 22, the contact between the lower surface of the surface projection claw 19 and the upper surface of the projection 22 is gradually released. The corner cover 4c can be completely removed from the panel body 5 by being detached from the latching protrusion 22.

  That is, the surface contact claw 19 which comprises the 1st fixing nail | claw part 17 was provided in the site | part close | similar to the both-sides edge part h of the corner cover 4c, and the two line contact claw 20 was provided in this corner | angular part side. The corner portion was provided with the second fixed claw portion 18, and the line hitting claw 20 was provided on all three.

  Therefore, the corner cover 4c can be easily attached to and detached from the panel body 5. Any work must be performed in an unreasonable posture facing the ceiling, but workability can be improved.

The string attachment claw 16 provided to attach the one end of the fall prevention string 23 to the corner cover 4c described above will be described.
11A is a perspective view showing a state in which the corner cover 4c is removed from the panel body 5, and FIG. 11B is an enlarged perspective view of the corner cover 4c.

  One end of the fall prevention string 23 is attached to the panel body 5, and the other end of the fall prevention string 23 is attached to the string attachment claw 16 of the corner cover 4c. Even if the corner cover 4 c is removed from the panel body 5, the corner cover 4 c is suspended from the panel body 5 via the fall prevention string 23 as shown in FIG.

Here, the position of the string attaching claw 16 is determined as described below.
That is, the center of gravity position n of the corner cover 4 c is obtained, and the string attaching claw 16 is provided between the center of gravity position n and the hooking claw 15. Since the hooking claws 15 are provided at two places, it is sufficient that the string attaching claws 16 are provided at the intermediate portion between them.

As shown in the drawing, when one end of the fall prevention string 23 is attached to the string attachment claw 16 and suspended from the panel body 5, the string attachment claw 16 is positioned above the center of gravity position n of the corner cover 4c. Eventually, the corner cover 4c has the hooking claw 15 at the upper part, and the corner part of the corner cover 4c where both side edges meet at the lower part.
For example, even if the corner cover 4c is removed at the time of maintenance, it is suspended from the panel main body 5 via the fall prevention cord 23 and does not fall, so that workability can be improved.

  From the selection of the position of the string attachment claw 16, the corner cover 4c is suspended with the hook claw 15 at the top. When the corner cover 4c is attached to the panel body 5 after completing the necessary work, the hooking claws 15 provided on the corner cover 4c are attached to the panel body 5 first. In the state where the corner cover 4c is suspended through the fall-preventing string 23, the hooking claw 15 is always on the upper portion, so that the installation work becomes easy and the workability can be improved.

Next, a structure for attaching the decorative panel 2 to the air conditioner body 1 will be described.
12A is a perspective view of the state in which the decorative panel 2 is removed and the air conditioner main body 1 is looked up from below, and FIG. 12B is a perspective view of the receiving metal part 28 attached to the air conditioner main body 1. FIG. 12C is a perspective view of the stepped bolt 27 that constitutes the receiving metal part 28.

FIG. 13 is a top perspective view of the decorative panel 2.
14A is a perspective view of a state in which the decorative panel 2 is attached to the air conditioner body 1 and is viewed from below, and FIGS. 14B and 14C are attachment parts of the decorative panel 2 to the air conditioner body 1. It is a figure which expands and shows in order of attachment.
15 (A) to 15 (C) are views in which the attachment portion of the decorative panel 2 to the air conditioner main body 1 is enlarged and shown in the order of attachment.

  The decorative panel 2 is a so-called thin plate, and the shape and structure of the air conditioner main body 1 are greatly different from each other, compared to a cube having vertical and horizontal dimensions and height dimensions. In attaching the decorative panel 2 to the end portion of the air conditioner main body 1 as described above, it is desirable that it is easy and easy to install and can improve workability.

  When removing the decorative panel 2 from the air conditioner body 1 as necessary, such as during maintenance, it must be performed at an elevated position while maintaining an unreasonable posture, and the same demand is strong. Therefore, the workability was improved by configuring as described below.

  As shown in FIG. 12A, the plan view of the casing 3 constituting the air conditioner main body 1 has a deformed eight stroke shape with a corner portion cut off based on a square shape. A receiving metal part 28 including a receiving plate 25 and a stepped bolt 27 as shown in FIG.

  The receiving plate 25 is a flat plate projecting horizontally from the casing 3. The receiving plate 25 is provided with a screw hole, and a stepped bolt 27 as shown in FIG. The length dimension of the straight portion m of the stepped bolt 27 is formed to be slightly shorter than the dimension obtained by adding the plate thickness of the panel fixing member 30 to be described later and the plate thickness of the panel sealing material 32.

  As shown in FIG. 13, the decorative panel 2 has a quadrangular shape, the outlet 7 is provided along each side, and the suction grille 4 is attached to the central portion by the above-described means as described above. It is.

  Each suction port 7 has an elongate rectangular shape that is much shorter in the short-side dimension than the long-side dimension, and remains the same. A panel sealing material 32 is attached to the upper surface of the decorative panel 2 around the suction port 7.

  The panel sealing material 32 is a foam of a synthetic rubber material such as EPDM (ethylene-propylene-diene rubber), and is a material having a certain thickness and elasticity. With the decorative panel 2 attached to the lower surface of the casing 3, the decorative panel 2 is interposed between the upper surface of the decorative panel 2 and the lower surface of the casing 3, and the clearance between the decorative panel 2 and the casing 3 is eliminated by its elastic repulsion, thereby maintaining airtightness. .

  A panel fixing member 30 is attached to the decorative panel 2. 14A to 14C show a state in which the decorative panel 2 is applied to the lower surface portion of the casing 3, and together with the panel fixing member 30 provided on the decorative panel 2, the casing 3 described above is shown. A receiving metal part 28 provided on the lower surface part is also shown.

  The panel fixing member 30 includes a guide part 35 provided integrally with the decorative panel 2 (panel body 5), and a slide fitting 37 slidably attached to the guide part 35 via a set screw 36 along the guide part 35. Consists of.

  That is, the guide portion 35 and the slide fitting 37 are overlapped with each other in a planar shape, and one side portion of the slide fitting 37 is bent downward to be an operation piece portion, and the contact surface with the guide portion 35 is long. A hole 38 is provided.

  A set screw 36 is inserted into the long hole 38, and the set screw 36 is attached to the decorative panel 2 via a slide fitting 37 and a guide portion 35. A washer 39 is fitted to the head of the set screw 36, and a long hole 38 of the slide fitting 37 is slidably received.

  Further, the slide fitting 37 has a large-diameter hole into which the head of the stepped bolt 27 that constitutes the receiving bracket portion 28 can be inserted, and a stepped bolt 27 that is smaller in diameter than the head of the stepped bolt 27. A continuous hole portion 40 in which a small-diameter hole into which the straight portion m can be inserted is continuously provided.

As shown in FIGS. 14B and 15A, the decorative panel 2 is applied to the lower surface of the casing 3 so that the decorative panel 2 is pressed against the casing 3. The head portion of the stepped bolt 27 constituting the receiving bracket portion 28 is inserted into the large diameter hole in the continuous hole portion 40 of the slide metal fitting 37, and the straight portion m of the stepped bolt 27 faces the large diameter hole.
At the same time, the panel sealing material 32 adhered along the periphery of the blowout port 7 of the decorative panel 2 is interposed between the casing 3 and is crushed to some extent, so that it is thinner than the original thickness.

  Next, as shown in FIG. 14C and FIG. 15B, the operation piece portion of the slide fitting 37 is pressed in a direction in contact with the guide portion 35. Since the slide fitting 37 is only received by the set screw 36 and the washer 39, it slides along the long hole 38. In a state where the end of the long hole 38 is in contact with the set screw 36 and the movement is restricted, the small diameter hole of the continuous hole 40 is stopped by the straight part m of the stepped bolt 27.

  Therefore, the urging force against the operation piece portion of the slide fitting 37 is removed, and the urging force that presses the decorative panel 2 against the casing 3 is removed.

  The panel seal material 32 attached to the decorative panel 2 returns to its original thickness by returning to its elasticity. As shown in FIG. 15C, the decorative panel 2 is lowered by the amount together with the guide portion 35 and the slide fitting 37.

  The slide fitting 37 comes into close contact with the head of the stepped bolt 27, and the decorative panel 2 provided with the slide fitting 37 is fixed to the air conditioner body 1 that is the casing 3 provided with the stepped bolt 27.

  Conventionally, when attaching the decorative panel, a jig for determining the tightening height is required when assembling the panel fixing screw to the air conditioner body in advance, which adversely affects manufacturability. And, in order to fix the decorative panel to the air conditioner main body, the panel fixing member is slid, and after that, it is necessary to retighten the panel fixing screw, and the workability is poor.

  On the other hand, the decorative panel 2 can be attached to the air conditioner body 1 while the stepped screw 27 is screwed and fixed to the air conditioner body 1 by setting the panel fixing screw as the stepped screw 27 as described above. It became so. Since the attachment of the decorative panel 2 is completed simply by sliding the slide fitting 37, workability can be improved.

  As mentioned above, although this embodiment was described, the above-mentioned embodiment is shown as an example and does not intend limiting the range of embodiment. The novel embodiment can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Air conditioner main body, 2 ... Cosmetic panel, 11 ... Hinge, 12 ... Latch part, H ... Hinge part, 4 ... Suction grill, 7 ... Outlet, 5 ... Panel main body, K ... Perforated decorative board

Claims (5)

An air conditioner body installed in the ceiling,
A decorative panel that is attached to the lower surface of the air conditioner body and is exposed to the room from the ceiling,
Comprising
The decorative panel has a rectangular suction grill provided at the central portion so as to be freely opened and closed,
It consists of a panel body that surrounds the outer periphery of this suction grille and has a rectangular outlet along each side.
A hinge portion for attaching the suction grille to the panel body, and a fixing portion for maintaining the suction grille in a closed state,
The hinge portion is provided on the outside in the longitudinal direction of the outlet,
The suction grill is provided with a ceiling-embedded air conditioner in which each side is provided along an inner edge of the outlet. The ceiling-embedded air conditioner according to claim 1, wherein the fixed portion includes a slide piece, and the slide piece protrudes from an outer peripheral portion of the suction grill when the suction grill is maintained in a closed state. Machine. The suction grill has a square shape,
The hinge part and the fixing part can attach the suction grille to any one of an initial position, a position turned 90 ° right or left from the initial position, and a position turned 180 ° from the initial position. The ceiling-embedded air conditioner according to any one of claims 1 and 2, wherein the ceiling-embedded air conditioner is provided. The ceiling-embedded air conditioner according to any one of claims 1 to 3, wherein the suction grille of the decorative panel has a lower decorative surface protruding from a lower decorative surface of the panel body. The ceiling-embedded air conditioner according to any one of claims 1 to 4, wherein the suction grille lower decorative surface of the decorative panel is covered with a perforated decorative plate.

Images