JPH07332699A - Suction grill supporting structure of air-conditioner - Google Patents

Abstract

PURPOSE:To contrive to raise a workability to release a suction grill, with regard to a ceiling built-in type air-conditioner. CONSTITUTION:Stoppage engagement pins 20, 20', which are made to be free to appear or disappear by an operation of operation sections 23, 23', are so arranged that opposing ones have positions on a same shafts L1, L2, at a side face of opposed faces of a suction grill 14 each other. Recess sections 26, 26', ...wherein an engagement insertion of engagement stoppage pins 20, 20', into an edge section of a suction opening 9a is free, are formed. When each engagement stoppage pin 20, 20', executes an engagement insertion into the recess sections 26, 26', ... and a suction grill 14 is released from a state wherein the suction grill 14 is mounted into a suction opening 9a, only a pair of engagement stoppage pins 20, 20 on the same shaft are operated and pulled up from the recess sections 26, 26, after the suction grill 14 is made to rotate and move downwards by using a pair of engagement stoppage pins 20', 20' on the same shaft of the other side as a hinge center, and therefore, the suction grill 14 can be released from both sides of side faces of opposed sides each other, by pulling up, in the same way, the other side engagement pins 20', 20'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a suction grill provided at a suction port of an air conditioner, and more particularly to a measure for improving workability of attaching and detaching the grill.

[0002]

2. Description of the Related Art Conventionally, for example, actual Kaihei 3-18419.
In a ceiling-embedded air conditioner as disclosed in Japanese Patent Laid-Open Publication No. JP-A-2004-115, a decorative panel is attached to the lower surface of an indoor unit casing that is suspended and supported in a space above the ceiling, and the decorative panel is formed at the center of the decorative panel. The suction grill is detachably supported at the suction port.

An example of a support structure for this suction grill is shown in FIGS.
Referring to FIG. 11, a pair of hook members (b) and (b) are provided on the outer surface of one side of the suction grille (a) so as to project on the other side opposite to this one side. Is provided with a pair of locking tools (c), (c) that can be retracted from the outer surface thereof. On the other hand, one side of the opening edge of the suction port (e) of the decorative panel (d) has a hook locking hole to which the hook members (b) and (b) can be locked.
(f) and (f) are formed, and locking holes (g) and (g) that can lock the locking tools (c) and (c) are formed on the other side facing this one side (see FIG. 11).
Are formed.

When attaching the suction grille (a) to the decorative panel (d), first, the suction grille (a) is placed in an upright state with the hook member (b) facing upward, and the hook member (a) is raised.
Hooks (b) and (b) into the hook locking holes (f) and (f), and these two members form a hinge. After that, the suction grill (a) is rotated upward with this hinge as the center of rotation so as to be in a horizontal state. Then, in this state, the locking tools (c), (c) are projected from the outer side surface of the grill and locked in the locking holes (g), (g).

In addition, the suction grille (a) from the decorative panel (d)
When removing, the reverse operation, that is, the locking device
As shown in FIG. 10, the (c) and (c) are retracted into the outer surface of the grill to release the engagement with the engagement holes (g) and (g), and then the suction grill (with the hinge as the center of rotation). Rotate (a) downward to hang it, and put the hook members (b), (b) on the hook locking holes (f),
I try to pull it out from (f).

[0006]

By the way, when removing the suction grille (a) from the decorative panel (d), for example, a stepladder is installed below the engaging portion of the engaging member (c), The worker will climb up to this stepladder, but this locking device (c)
It is difficult to confirm which side of the suction grille (a) the locking part is due to from inside the room. Therefore, if the stepladder is installed on the lower side of one side that is not the locking part of the locking device (c), re-install the stepladder at another place and lock it with the locking device (c). There is a problem that it is necessary to find the position of the part, and the work is extremely complicated.

In addition, the suction grille (a) from the decorative panel (d)
Not only when removing the air filter installed in the decorative panel (d) but also when opening the suction grill (a) and putting it in the suspended state in order to remove it, the procedure is almost the same. Becomes complicated.

The present invention has been made in view of this point, and by improving the support structure of the suction grill,
An object of the present invention is to improve workability when removing the suction grill from the decorative panel or when opening the suction grill.

[0009]

In order to achieve the above object, the present invention has the above-described operation because the opening direction of the suction grill is only one direction when the suction grill is removed or opened. Considering that becomes complicated,
Not only one side where the suction grill can be removed, but 2
I decided to install it in the place.

Specifically, the invention according to claim 1 is premised on an air conditioner provided with an intake grill (14) which is detachably attached to an air intake (9a). A suction grill is provided at one end of either one of the air suction port (9a) and the suction grill (14) and at one of the other ends.
Hinge locking means (20), (20 ') for supporting the (14) rotatably with respect to the edge of the air suction port (9a) are provided. In addition, each of the hinge locking means (20), (20 ') releases the engagement state of the one hinge locking means (20) with the edge of the air suction port (9a) of the suction grille (14). In this state, the other hinge locking means (20 ') supports the suction grill (14) so as to be rotatable with respect to the edge portion of the air suction port (9a), and the one hinge locking means (20 When the suction grille (14) supports the suction grille (14) on the edge of the air suction opening (9a), the other hinge locking means (20 ') is attached to the air suction opening (9a) of the suction grille (14). The configuration is such that the engagement with the edge can be released.

According to a second aspect of the present invention, in the suction grill supporting structure for an air conditioner according to the first aspect, the hinge locking means (20), (20 ') are provided on opposite sides of the suction grill (14). At both ends in the longitudinal direction of the one end located in the air intake port (9a) and formed in the recess (2
6), (26 ') is made of locking pins (20), (20') that can be fitted, and among the locking pins (20), (20 ') in the suction grille (14) Those located on opposite sides are provided coaxially with each other. Then, when both of the coaxial locking pins (20) and (20) are advanced, they are fitted into the recessed portions (26) and (26) so that the suction grill (14) is connected to the air suction port (9a) edge. It is configured to be rotatably locked to the section.

According to a third aspect of the present invention, in the suction grill support structure of the air conditioner according to the second aspect, the locking pin (20) is operated by operating from the front side and the back side of the suction grill (14). Operation part that allows the locking pin (20) to move back and forth freely
(23) and (24) are provided.

[0013]

With the above construction, the present invention provides the following actions. In the invention according to claim 1, when the suction grill (14) is removed from the air suction port (9a), one of the two end portions of the suction grill (14) has a hinge locking means.
The engagement state of (20) with the edge of the air suction port (9a) is released. As a result, the hinge locking means (20 ') at the other end allows the suction grill (14) to rotate with respect to the edge of the air suction port (9a). Then, when the suction grille (14) is rotated toward the indoor side and the engagement state of the other hinge locking means (20 ') with respect to the edge of the air suction port (9a) is released, the suction grille (14 ) Is removed from the air inlet (9a). Since such a detaching operation is performed and the hinge locking means (20), (20 ') have the same configuration, either side of the two end portions of the suction grille (14) can be used. However, the removal operation can be performed.

In the invention according to claim 2, the suction grill (14)
When removing the air intake port (9a) from the air suction port (9a), first retract only one of the coaxial locking pins (20), (20), and the other of the coaxial locking pins (20), (20). So that the suction grille (14) can be rotated around the edge of the air suction port (9a), and then the other suction pin (20), (20) on the same axis is used as the center of rotation for the suction grille (14). In the state in which is rotated to the indoor side, the other locking pins (20), (20) on the same axis are retracted. As a result, the suction grill (14) is removed from the air suction port (9a). In this way, attach the suction grille (14) to the air intake (9
a) and the suction grille (14) to the air inlet (9
It is possible to combine the function of rotatably supporting the edge portion of a).

According to the third aspect of the present invention, when the locking pin (20) is retracted, it is performed by operating the operation portions (23) and (24). Therefore, the workability of removing the suction grill (14) is improved.

[0016]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a sectional view of a ceiling-embedded air conditioner (1) according to this example. The air conditioner (1) is inserted and arranged in an opening (H) formed in a ceiling (R), and a casing (2) opening downward is installed in a space above the ceiling (S). The casing (2) includes a top plate (2a) and side plates (2b) extending downward from the outer edge of the top plate (2a). Top plate (2a)
4 has a substantially octagonal shape as shown in FIG.
(2b) is extended vertically downward from each side of the top plate (2a). Specifically, the top plate (2a) is an octagon in which long sides with long sides and short short sides are alternately continuous, and the side plates (2b) extending vertically downward from the long sides have a relatively small area. Side plate (2b ') that is large and extends vertically downward from the short side part
Is a corner side plate (2b ') with a relatively small area.

As the installation structure of the casing (2), as shown in FIG. 4, four hanging bolts (B), (B), ... Hanging from a beam (not shown) in the space above the ceiling (S). Suspended and supported by. That is, the corner side plate (2
At the center of b '), a hook member (2c) protruding outward in the horizontal direction as shown in Fig. 5 is attached.
Suspending bolt (B) in the long hole (2d) formed in the center of (2c)
Through, and screw the nut (N) under the inserted part. As a result, the hook member (2c) comes into contact with the upper surface of the nut (N), and the casing (2) is suspended and supported by the suspension bolts (B), (B), ... At four locations. Also,
By adjusting the screwing position of the nut (N) to the suspension bolt (B), the suspension height position of the casing (2) can be adjusted.

Further, as shown in FIG. 1, a turbofan (3) is arranged in the center of the casing (2). This turbofan (3) has a blade (3c) held between the shroud (3a) and the hub (3b), and the center of the hub (3b) is located in the center of the casing (2). It is directly connected to the lower end of the drive shaft of the motor (4), and the rotation of the blade (3c) accompanying the drive of this motor (4) allows the air sucked from the lower side to be blown outward in the radial direction. ing. A bell mouth (5) for guiding the indoor air to the turbo fan (3) is arranged below the turbo fan (3).

A heat exchanger (6) is arranged around the outer periphery of the turbofan (3). The heat exchanger (6) is connected to an outdoor unit (not shown) via a refrigerant pipe, and functions as an evaporator during cooling operation and as a condenser during heating operation, and is led from the turbofan (3). The temperature of the air is adjusted.

A drain pan is provided below the heat exchanger (6).
(8) is arranged, and the drain hose (8a) (see FIG. 4) connected to this drain pan (8) is a corner side plate (2b ').
And extends to the outside of the room. In addition, this drain hose (8
Part of a) has a bellows shape that can be bent.

A decorative panel (9) is attached to the lower end of the casing (2). This makeup panel (9)
An air suction port (9a) is formed in the center thereof, and air outlets (9b), (9b), ... Are formed at a plurality of locations (for example, four locations) of the side edge portion. Also, the casing (2) of this decorative panel (9)
As shown in Fig. 4, the corner side plate (2b ')
The hooks (11) projecting outward from the vicinity of the lower end of the decorative panel (9) are supported by being hooked by a locking tool (12) provided on the upper surface of the decorative panel (9). Also, makeup panels (9)
An air filter (9) for removing dust in the air sucked from the air suction port (9a) is provided above the air suction port (9a).
c) is provided.

In this way, the air flow passage (10) is formed across the air suction port (9a) and the air blowout port (9b) of the decorative panel (9), and this air flow passage (10) is formed. , From upstream to downstream, air filter (9c), bell mouth (5), turbo fan
(3) and heat exchanger (6) are arranged in that order.

The characteristic feature of this embodiment is the support structure of the suction grille (14) mounted on the air suction port (9a). The suction grille (14) will be described below. As shown in FIG. 2, the suction grilles (14) are located inside the rectangular frame (15) and inside the opposite ends (one side) of the frame (15). A pair of vertical fin portions (16), (16) arranged to face each other, and each vertical fin portion (16) extending in a direction orthogonal to the vertical fin portions (16), (16) at substantially equal intervals. ,
(16) is provided with a plurality of horizontal fin portions (17), (17), ..., which guide indoor air sucked from the air suction port (9a) to the air filter (9c). I am trying.

Further, the lower edge of the frame portion (15) and the vertical fin portion (16)
A decorative plate (18) that closes the lower side of the space between the frame portion (15) and the vertical fin portion (16) is installed between the lower end edge of the frame and the vertical fin portion (16). Also, between the lower end of each outer lateral fin (17a), (17a) and the lower end of the frame (15) located on the outermost side of the plurality of lateral fins (17), (17), .... Also, a decorative plate (19) similar to the above is erected. That is, the space between the frame part (15) and the fin parts (16) and (17a) located directly inside the frame part (15) is a decorative plate.
It is covered with a frame by (18) and (19) so that it cannot be seen from below.

The characteristic feature of the suction grille (14) is that the locking pins (20), (20 '), ... Is provided. The locking pins (20), (20 ') and their peripheral structures will be described below.

Since the respective locking pins (20), (20 '), ... And their peripheral structures are the same, here, the locking pin (20) at the front corner portion in FIG. 2 will be described. This will be described with reference to FIG. As shown in FIG. 3, the locking pin (20) has a pin body portion (22) and an operation extending vertically from the base end portion (a portion located inside the suction grill) of the pin body portion (22). Department (2
It consists of a T-shaped member with 3) and (24). Also,
An auxiliary fin portion (21) extending in parallel with the vertical fin portion (16) is integrally formed over the outer horizontal fin portion (17a) of the suction grill (14) and the frame portion (15) facing the outer horizontal fin portion (17a). And
The pin body portion (22) of the locking pin (20) is inserted through the auxiliary fin portion (21), the vertical fin portion (16), and the frame portion (15). That is, coaxial insertion holes (21a), (16a), (15a) are formed in each of the auxiliary fin portion (21), the vertical fin portion (16), and the frame portion (15), and these insertion holes (21a) , (16a), (15a) to the pin body (2
2) is inserted. In addition, the operation part (2
Of the 3) and (24), the back side operation part (23) extending upward from the base end part of the pin body part (22) is projected slightly above the upper end surface of the suction grille (14), while The front side operation part (24) extending downward from the base end part of the main body part (22) penetrates the decorative plate (19) extending between the frame part (15) and the outer lateral fin part (17a) and sucks it. It projects slightly below the lower end surface of the grill (14). Further, a long hole (19a) extending along the extension direction of the pin body (22) is formed in a portion of the decorative plate (19) which the front side operation portion (24) penetrates. Therefore, the locking pin
(20) is slidable within a predetermined stroke in which the front operation portion (24) abuts each end of the elongated hole (19a) (see arrows A and B in FIG. 3). In addition, the oblong hole (19a) that sets this stroke is
9a) is in contact with the outer end (the right front end in FIG. 3), the tip of the pin body (22) projects from the side surface of the frame (15) by a predetermined dimension as shown in FIG. When the part (24) is in contact with the inner end (the left rear end in FIG. 3) of the elongated hole (19a), the tip part of the pin body (22) is recessed in the side surface of the frame (15). The shape is set like this.

Further, the pin body (22) of the locking pin (20)
Of the parts located between the vertical fin part (16) and the auxiliary fin part (21), the flange part (22
a) is integrally formed, and a coil spring (25) is compressed around the outer periphery of the pin body (22) between the flange (22a) and the auxiliary fin (21). Therefore, the locking pin (20) has a flange (22a) on the coil spring (25).
As the pin body (22) receives a biasing force from the side surface of the frame (15) (a direction indicated by an arrow B in FIG. 3), the pin body (22) receives the biasing force. Stop Pin (20)
As shown in FIG. 3, the front operating portion (24) has a long hole (19a) when no external force is applied other than the urging force of the coil spring (25).
In contact with the outer end of the pin main body (22), the tip portion of the pin main body (22) projects from the side surface of the frame (15) by a predetermined dimension.

Such a structure is provided at each of the four corners of the suction grille (14), and the respective locking pins (20), (2
0 '), ... Are arranged in parallel with each other at one end portion of the frame portion (15) of the suction grill (14) facing each other, and can be retracted from the side surface of this one end portion. Furthermore, each locking pin
The arrangement positions of (20), (20 '), ... will be described in detail. A pair of locking pins (20), (20), (20') provided so as to face each other at one end facing each other. , (20 ') pin body (22),
(22), (22 '), (22') are arranged on the same axis (L1, L2 in Fig. 2), and move back and forth on this axis (L1), (L2) to the side of the frame (15). It is supposed to appear from.

On the other hand, as a feature of the decorative panel (9) to which the suction grille (14) is attached, as shown in FIG. 2, the protruding positions of the pin body portions (22), (22 ') ,. Is formed to have a cylindrical recessed portion (26), (26 ') ,. Therefore, when the suction grille (14) is attached to the decorative panel (9), the pin body parts (22), (22 '), ... are respectively in the recessed parts (26), (26'), .... When the suction grille (14) is removed from the decorative panel (9), the suction grille (14) is locked to the edge of the suction opening (9a) by being inserted. 22), (22 '), ... are the recesses (26), (26'), ...
Will be removed from each. Further, in FIG. 2, only the pin body portion (22) on the front side coaxial (L1) is provided with the concave portions (2
When fitted in 6), the side (15b) on the front side of the frame (15)
Is the support side and the suction grille (14) is rotatable, while only the pin body (22 ') on the inner coaxial (L2) is fitted in each recess (26'). Then, on the back side of the frame (15) (1
The suction grille (14) is rotatable about the support side of 5c).

Next, the suction grille for the decorative panel (9)
The attaching / detaching operation of (14) will be described. First, the suction grill (1
The mounting operation of 4) will be described. First, 4 locking pins
Of the (20), (20 '), ..., Two locking pins (20), (20) provided on the opposite sides of the frame part (15) and coaxially arranged facing each other. ) To the back operation part (23),
Operate (23) to move the pin body (22) to the frame (1
Immerse in the end face of 5). Specifically, for example, in FIG. 2, a pair of locking pins (20), (2
When operating (0), install a stepladder below the edge of the suction port (9a) where the locking pins (20), (20) should be located, and the operator should climb this stepladder. The rear operation parts (23), (23) of the locking pins (20), (20) by pulling them toward each other toward the center of the suction grille (14). As a result, this pair of locking pins (20),
(20) slides toward the center side of the suction grille (14) against the biasing force of the coil springs (25), (25) (see arrow A in FIG. 3), and each pin body (22), (22) sinks into the side surface of the frame (15).

In this way, a pair of coaxial pin main body portions
With only (22) and (22) immersed in the side of the frame (15),
As shown in Fig. 6, make sure that the positions of the pin bodies (22) and (22) that are recessed are aligned with the positions of the recesses (26) and (26) formed in the air inlet (9a). Release the operation of the back side operation parts (23), (23). This allows each pin body (22), (22)
Is set by the urging force of the coil springs (25) and (25).
5) Projected from the side surface (see arrow B in Fig. 3) and recessed (2
It is fitted into 6) and (26). In this state, the pin body (22)
Has a cylindrical shape, and the concave portion (26) is formed into a cylindrical shape corresponding to it, so that the pin body portion (22) is rotatable with respect to the concave portion (26), and the suction grill ( 14) is supported in a suspended state. That is, the suction grille (14) as a whole is rotatably (see the arrow in FIG. 6) locked to the air suction port (9a) with the pin body (22) as a fulcrum. At this time, the pin grilles (22), (22) and the recesses (26), (26) that are aligned are suspended by the suction grille (14) being locked at the air suction port (9a). In this state, the back side of the suction grill (14) is set to face inward. That is, when the suction grill (14) is rotated upward from this state, the surface of the suction grill (14) faces downward.

Next, in the state in which the suction grille (14) is rotatably locked to the air suction port (9a) in this manner, the concave portion (2)
6 '), (26') locking pin (20 '), (2
0 '), that is, in the state shown in FIG. 6, the front operating portion (24')
By operating (24 '), pin body (22'), (22 ')
Immerse into the side of the frame (15). Specifically, in FIG. 6, the front side operation portions (24 '), (24') of the pair of locking pins (20 '), (20') located on the lower side in FIG. To the center side of. As a result, this pair of locking pins
(20 '), (20') slides toward the center of the suction grille (14) against the urging force of the coil springs (25), (25), and the pin body parts (22 '), (22'), 22 ') sinks into the side of the frame (15).

In this manner, with the pin body portions (22 '), (22') immersed in the end surface of the frame portion (15), the recessed portions (26), (26)
The suction grille (14) is pivoted upward with the upper pin body portions (22), (22) fitted in the upper part as pivot points (see arrow C in FIG. 6). This rotation causes the suction grille (14) to be in a horizontal state as shown in FIG. 7, and the pin body (2
2 '), (22') position and recess formed in the air inlet (9a)
Front side operation part with the (26 ') and (26') positions aligned
Release the operations of (24 ') and (24'). As a result, the pin body parts (22 ') and (22') are projected from the end face of the frame part (15) by the biasing forces of the coil springs (25) and (25), and the recessed parts (26 ') and (2
6 ').

By this operation, each of the four locking pins is
Pin body parts (22), (22 ') of (20), (20'), ... are recessed parts (2
6), (26 '), ..., and the suction grille (14) is attached to the suction port (9a) of the decorative panel (9).

In the mounting operation described here, first, the pin body portion (22) of the retaining pin (20) on the left side of the suction grille (14) in FIG. 7 is fitted into the recessed portion (26). , Right locking pin
The pin body (22 ') of (20') was fitted into the recess (26 '), but conversely, as shown in FIG. 8, the locking pin (20') on the right side in FIG. After fitting the pin body (22 ') into the recess (26'), the suction grille (14) as shown by the arrow D in FIG.
It is also possible to rotate and to fit the locking pin (20) on the left side into the recess (26). In other words, in the configuration of this example, the suction grill (1
4) can be installed.

Next, the operation of removing the suction grille (14) will be described. First, of the four locking pins (20), (20 '), ... which are respectively fitted in the recesses (26), (26'), ..., the frame (1
For the two locking pins (20) and (20) which are provided on the opposite sides of 5) and are coaxially arranged so as to face each other, the front operation parts (24) and (24) are attached. By the operation, the pin body portion (22) is immersed in the end surface of the frame body (15). Specifically, for example, when operating the pair of locking pins (20), (20) on the shaft (L1) (see FIG. 2) located on the left side in FIG. 7, the locking pins (20), A stepladder is installed below the position where (20) is arranged, and the operator picks up the front operation parts (24), (24) of the locking pins (20), (20) on the stepladder. , Suction grilles to each other (14)
To the center side of. As a result, the pair of locking pins (20), (20) slides toward the center of the suction grille (14) against the biasing force of the coil springs (25), (25) (see FIG. 3). (See arrow A), each pin body (22), (22) is a frame (15)
Immersed in the side of.

In this way, a pair of coaxial pin body portions
With only (22) and (22) immersed in the end face of the frame (15),
As shown in FIG. 8, rotate the pin bodies (22 '), (22') (the pin body on the right side in FIG. 8) on the side fitted in the recesses (26 '), (26'). As the fulcrum, the suction grille (14) is rotated downward (see arrow E in FIG. 8) to release the operation of the front operation parts (24), (24). In this state, the suction grill (14) is supported by the air suction port (9a) in a suspended state.

From this state, the recesses (26 '), (2
6 ') locking pins (20'), (20 ') on the side fitted, that is, the two locking pins (20') located on the upper side in FIG.
By operating the back side operation parts (23 '), (23') with respect to (20 '), the pin body parts (22'), (22 ') are sunk into the side surface of the frame body (15), and the recesses are formed. By releasing the fitting state to the parts (26 '), (26'), the suction grille (14) becomes the suction port of the decorative panel (9).
Removed from (9a).

The removal operation described here is as follows.
Locking pins (20), (2 on the left side of the suction grille (14) in FIG. 7
After pulling out the pin body (22), (22) of (0) from the recesses (26), (26), pin body of the right locking pin (20 '), (20')
Although (22 ') and (22') are pulled out from the recesses (26 ') and (26'), conversely, as shown in FIG. 6, the locking pin (20 ') on the right side in FIG. After removing the pin body (22 '), (22') of the (20 ') from the recesses (26'), (26 '), attach the suction grille (14) as shown by arrow F in FIG. Rotate the upper locking pin (2
It is also possible to remove the pin body portions (22) and (22) of 0) and (20) by pulling them out from the concave portions (26) and (26). That is, in the configuration of this example, the suction grille (14) can be removed from either the left or right side in FIG. 7.

As described above, in the support structure for the suction grille (14) of this embodiment, the work for attaching and detaching the suction grille (14) can be performed from either side of the suction grille (14) facing each other. However, it is not the case that the suction grill can be attached / detached only from one side as in the conventional case. Therefore, at the time of this attachment / detachment work, it is not necessary to re-install the stepladder at another location to find the position of the engaging portion where the attachment / detachment work can be performed, and the attachment / detachment workability can be improved.

In addition, even when the suction grille (14) is suspended so that the air suction port (9a) is opened, such as when cleaning or replacing the air filter (9c), 6 or 8, the opening work can be performed from either side of the suction grille (14) facing each other, and the workability of the work at this time is also improved.

As described above, the frame portion (15) and the frame portion
The space between the fins (16) and (17a) located just inside (15) is covered by the decorative plates (18) and (19) so that it cannot be seen from below. Locking pin from inside (20)
The pin body (22) and the coil spring (25) are not visible, and the appearance of the suction grille (14) is well secured.

In this example, the locking pins (20), (20 ') are arranged at the four corners of the suction grille (14), and the locking pins (2
0), (20 ') ... Have both a function as a hinge and a function as a detachable member, but the present invention is not limited to this, and the sides located on opposite sides of the suction grille (14). It is also possible to provide a hook-like locking member which is pivotable from the side surface of the suction grill and is capable of retracting and retracting in the portion, and the locking device has both a function as a hinge and a function as a detachable member.

[0044]

As described above, according to the present invention, the following effects are exhibited. According to the invention as set forth in claim 1, the suction grill is engaged with the edge of the air suction port at one end of either one of the air suction port and the suction grill and at any one of the other ends. Since the hinge locking means for rotatably supporting and rotatably supporting the suction grill is provided so that the suction grill can be removed from either side of the two one ends of the suction grill, the conventional structure can be improved. It is not that the suction grill can only be removed from one end. For this reason, it is not necessary to relocate the stepladder at another place to find the position of the engaging portion where the attachment / detachment work can be performed at the time of the detaching work, and the attaching / detaching workability can be improved.

According to the second aspect of the invention, when the coaxial locking pins are both advanced, they are fitted in the recesses and the suction grill is rotatably locked to the air suction port edge. Therefore, the locking pin can have both the function of locking the suction grill to the air suction port and the function of rotatably supporting the suction grill at the edge of the air suction port. The hinge locking means can be obtained with various configurations.

According to the third aspect of the present invention, since the locking pin is provided with the operating portion that allows the locking pin to move back and forth by operating from the front side and the back side of the suction grill, the operating portion is provided. Since the locked state of the suction grill by the locking pin can be released by operating the, the workability of removing the suction grill can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner.

FIG. 2 is a perspective view showing a decorative panel and a suction grill.

FIG. 3 is a perspective view showing a disposition portion of a locking pin.

FIG. 4 is a perspective view showing a suspended support state of the air conditioner.

FIG. 5 is a perspective view showing a suspended portion by a suspension bolt.

FIG. 6 is a cross-sectional view showing a state in which the suction grill is suspended and supported by one locking pin.

FIG. 7 is a cross-sectional view showing a mounted state of a suction grill.

FIG. 8 is a cross-sectional view showing a suspension support state of the suction grill by the other locking pin.

9 is a view corresponding to FIG. 2 in a conventional example.

FIG. 10 is a perspective view of a hook member included in a conventional suction grill.

FIG. 11 is a cross-sectional view showing a locked state of one side of a suction grill in a conventional example.

[Explanation of symbols]

 (1) Ceiling embedded air conditioner (9b) Air outlet (14) Horizontal blades (15b), (15c) Sides (20) Locking pin (hinge locking means) (23) Back side operation part (24 ) Front operation part

Claims (3)

[Claims] 1. An air conditioner comprising a suction grill (14) which is detachable from an air suction port (9a), wherein one of the air suction port (9a) and the suction grill (14) is provided. A hinge locking means (20) for rotatably supporting the suction grill (14) with respect to the edge of the air suction port (9a) at one end and any one of the other ends. ), (20 ') are provided respectively, and each of the hinge locking means (20), (20') is such that one of the hinge locking means (20) has an air suction port (9a) of the suction grill (14). ) Is released from its engagement with the edge, the other hinge locking means (2
(0 ') supports the suction grill (14) so as to be rotatable with respect to the edge of the air suction port (9a), and one hinge locking means (2
(0) is supporting the suction grille (14) on the edge of the air suction port (9a), the other hinge locking means (20 ') of the air suction port (9a) of the suction grille (14). A suction grille support structure for an air conditioner, characterized in that the engagement state with the edge portion can be released. 2. Hinge locking means (20), (20 ') are movable forward and backward on both sides in the longitudinal direction of one ends of the suction grille (14) opposite to each other, and the air suction port (9a). The locking pins (20) and (20 ') that can be fitted into the recessed portions (26) and (26') formed at the edges, and the locking pins (20) and (20 '). ), Which are located on opposite sides of the suction grille (14), are provided coaxially with each other, and when the coaxial locking pins (20), (20) are both advanced, the recess ( 26), (26) fitted into the suction grill (1
2. The suction grille support structure for an air conditioner according to claim 1, wherein 4) is rotatably locked to the edge of the air suction port (9a). 3. The locking pin (20) has an operating portion (23), (24) which allows the locking pin (20) to move back and forth by an operation from the front surface side and the back surface side of the suction grille (14). ) Is provided, The suction grille support structure of the air conditioning apparatus of Claim 2 characterized by the above-mentioned.