JPH07260194A - Grill-removing structure of air conditioner - Google Patents

Abstract

PURPOSE:To satisfactorily ensure rotation operation of a suction grill and removal operation of the suction grill with respect to an edge of a suction inlet. CONSTITUTION:In a ceiling suspension type air conditioner, a suction grill 12 is engaged with a flange 4a through a hinge member 18 that forms an edge of a suction inlet 2. On the hinge member 18 there are provided a mount part 18b romovable with respect to a mount hole 4b in the flange 4a, and a hinge 18a rotatable relatively to the suction grill 12. Opening/closing of the suction grill 12 is ensured with rotation of the hinge 18a of the hinge member 18. Removal operation of the suction grill 12 with respect to the suction inlet 2 is ensured with removal of the mount arm 18ab of the hinge member 18 with respect to the flange 4a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grille attachment / detachment structure for an air conditioner, and more particularly, it is hinged to a suction port edge portion.
The present invention relates to improvement of pivotability and detachability of a hinge portion of a suction grill that opens and closes a suction port by rotation.

[0002]

2. Description of the Related Art Conventionally, for example, in a ceiling-suspended air conditioner, a suction port is formed on the lower surface and a blowout port is formed on the front surface, and a suction grill is rotatably hinged to the edge of the suction port. Has been done.

Further, as a disclosure of the structure of such a suction grill, there is, for example, Japanese Utility Model Publication No. 63-45619. This publication discloses a structure in which a grill support is attached to the edge of the suction port, and a support shaft provided at one side edge of the suction grill is engaged with a guide groove formed in the grill support. . When replacing the filter, rotate the suction grill while moving the support shaft in the guide groove to open it, and when cleaning the suction grill, remove the support shaft from the guide groove. I try to remove it.

[0004]

By the way, as described in the above publication, in the conventional structure for attaching and detaching the suction grill, the support shaft serving as the hinge member of the suction grill is attached and detached with respect to the edge portion of the suction port. Therefore, it has been difficult to perform a favorable turning operation and attachment / detachment operation. In other words, the support shaft has a function not only as a rotation fulcrum but also as a detachable member for the edge portion of the suction port. Further, the function required as the rotation fulcrum is that the smooth rotation operation can be performed without easily falling off, while the function required as the attachment / detachment member is that the attachment / detachment work can be easily performed. That is, since the supporting shafts are required to have contradictory functions, it is difficult to realize a structure in which both the functions are favorably obtained only by the supporting shafts.
There was room for improvement.

The present invention has been made in view of this point, and it is an object of the present invention to favorably obtain both the rotation operation of the suction grill and the attachment / detachment operation with respect to the edge portion of the suction port.

[0006]

To achieve the above object, the present invention hinges the opening / closing operation of the suction grill by locking the suction grill to the edge of the suction opening via a hinge member as a separate member. The rotation of the member is performed, and the removal of the suction grill is performed by the removal of the hinge member from the edge of the suction port.

Specifically, the invention according to claim 1 is a suction port.
(2) Blower in the casing (4) with outlet (3)
(5) and the heat exchanger (6) are provided, and the air conditioner is premised on the suction port (2) having a suction grill (12) for opening and closing the suction port (2). Then, the suction grill (12) is locked to one side edge of the suction port (2) via the hinge member (18). Further, the hinge member (18) includes a detachable portion (18b) for detachably engaging the hinge member (18) with one side edge of the suction port (2) and a suction grill (12). (18)
And a hinge portion (18a) for rotatably supporting it.

According to a second aspect of the invention, in the grill attaching / detaching structure of the air conditioner according to the first aspect, the suction port (2) is provided.
An attachment hole (4b) into which the attachment / detachment portion (18b) is attached is formed at one side edge of the. Further, the attaching / detaching part (18b) is provided with a locking projection (18d) which is locked to the edge of the mounting hole (4b).

According to a third aspect of the present invention, in the grill attaching / detaching structure of the air conditioner according to the first aspect, the suction grill is provided.
A pair of shaft locking portions (14e) opposed to one side edge direction of the suction port (2) are formed in the (12). Further, the hinge part (18a) is provided with a pair of shaft parts (18e) that are locked to the shaft locking part (14e).

According to a fourth aspect of the invention, in the grill attaching / detaching structure of the air conditioner according to the third aspect, the suction grill is provided.
Set the shaft locking part (14e) so that the rotation fulcrum of (12) is close to the front corner of the suction grill (12).
The structure is located at the corner of the indoor side in the cross section of 2).

According to a fifth aspect of the present invention, in the grill attaching / detaching structure of the air conditioner according to the third or fourth aspect, the hinge portion (18a) has a slit (18c) extending in a direction orthogonal to the shaft portion (18e). Is formed.

[0012]

With the above construction, the present invention provides the following actions. In the invention according to claim 1, a blower
The air sucked into the casing (4) from the suction port (2) due to the driving of (5) is heat-exchanged in the heat exchanger (6) to become conditioned air, and then the air outlet (3). Is blown out from.

A suction grill provided at the suction port (2)
When opening (12), the hinge part (18
Rotate the suction grille (12) with respect to a). Also, when removing the suction grill (12) from the suction port (2), use the hinge member.
Remove the attachment / detachment part (18b) of (18) from one side edge of the suction port (2), and attach the suction grill (12) integrally with the hinge member (18).
Remove from (2). As described above, by providing the portion functioning as the rotation fulcrum and the portion functioning as the attachment / detachment portion for the suction opening edge portion at different positions, the rotation operation of the suction grille (12) and the attachment / detachment operation for the suction opening edge portion are performed. Both can be done well.

In the invention according to claim 2, the suction grill (12)
When attaching the suction member to the suction port (2), attach the detachable part (18b) of the hinge member (18) attached to the suction grill (12) to the suction port (2).
This is done by fitting it into the mounting hole (4b) at one side edge. Then, in this state, the locking protrusion (18d) of the attaching / detaching part (18b) is locked to the edge of the mounting hole (4b), and the hinge member (18) does not easily fall off.

In the invention according to claim 3, the hinge member (18)
When installed on the suction grille (12), the hinge (18a)
The shaft part (18e) of the suction grille (12) is locked to the shaft locking part (14e) of the suction grille (12), and the shaft part (18e) serves as the rotation center, and the hinge member (18) and the suction grille ( It is possible to rotate relative to 12). Also, a pair of shaft portions (18e) are provided along the one side edge direction of the suction port (2) corresponding to the shaft locking portion (14e),
The support of the suction grille (12) by the hinge member (18) is a double-supported structure, and the support strength is improved.

In the invention according to claim 4, the suction grill (12)
During the opening / closing operation of the suction grille (12), the suction grille (12) rotates about the indoor corner of the cross section of the suction grille (12) as a rotation fulcrum.
For this reason, the suction grille (12) pivots at a position close to the front corner portion of the suction grille (12), and in the opened state, is located outside the outer wall surface such as the back surface of the casing (4). This is suppressed.

According to the invention of claim 5, the hinge portion (18a) is provided.
When locking the shaft part (18e) of the shaft locking part (14e) with the shaft locking part (14e), elastic force is applied to the hinge part (18a) in the direction to reduce the width dimension of the slit (18c). Perform in the deformed state. Thereby, the work of fitting the hinge portion (18a) can be easily performed.

[0018]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a ceiling-hung air conditioner according to this example.
The internal structure of (1) is shown. As shown in this figure, the air conditioner (1) has a blower fan as a blower inside the air conditioner casing (4) equipped with a suction port (2) and a blowout port (3).
(5) and the heat exchanger (6) are arranged.
Then, the indoor air taken in through the suction port (2) along with the drive of the blower fan (5) is adjusted in temperature in the heat exchanger (6) to become conditioned air, and then is blown into the room through the air outlet (3). It is designed to blow out.

A horizontal blade (8) is arranged at the outlet (3) so as to be rotatable about a horizontal axis, and the vertical direction of the blown air is changed by driving a swing motor (not shown). It is possible. Further, at the air outlet (3), a plurality of vertical blades (not shown) for changing the left and right directions of the blown air are also provided.

The suction port (2) has an air filter (10).
And a suction grill (12) is provided respectively. The air filter (10) removes dust in the air sucked into the air conditioner casing (4) and purifies it, and can be attached to and detached from the edge of the suction port (2) by a not-shown locking tool. Supported by.

The suction grille (12) covers the entire suction port (2) from the lower side of the air filter (10). The suction grille (12) has a right side edge (rear side edge) in FIG. 1 rotatably supported by an air conditioner casing (4) by a hinge structure to be described later, while a left side edge portion is supported. An edge portion (front edge portion) is detachable from the air conditioner casing (4) by an engagement / disengagement structure described later.

The hinge structure on the rear side edge and the engagement / disengagement structure on the front side edge of the suction grille 12 will be described below.
First, the structure of the suction grille (12) provided with each of these structures will be described. FIG. 4 shows the front surface (lower surface) of the suction grill 12, and FIG. 5 shows the back surface (upper surface) thereof. As shown in these drawings, the suction grille (12) is formed by arranging a plurality of guide fins (16), (16), ... In parallel inside a rectangular frame body (14).

In the rear frame portion (14a) of the frame body (14) which extends in the longitudinal direction so as to face the rear end edge portion of the suction port (2),
As shown in FIG. 6, there is provided a flange (14b) whose outer end is bent toward the back side. Also, FIG.
And, as shown in FIG. 7, at two inner positions with a predetermined dimension from both left and right ends of the rear frame portion (14a), a relatively large dimension extending from the flange (14b) toward the center of the grill is provided. A pair of short ribs (14c), (14c) are erected at respective positions facing each other with a predetermined space. The rib (14c) has one end in contact with the flange (14b) and the other end in contact with the guide fin (16a) located at the rearmost portion. As a result, the guides located on the rear side of the rear frame portion (14a) of the suction grille (12) and on the flange (14b) and the rearmost portion at two inner positions with a predetermined dimension from both left and right ends thereof. A rectangular recess (14d) is formed between the fin (16a) and the fin (16a). In addition, an opening (14e) as a shaft locking portion penetrating in the horizontal direction is provided in the corner portion of the rib (14c) corresponding to the lower rear end of the suction grille (12) as an extension of the rear frame portion (14a). A pair is formed facing each other.

Further, as shown in FIG. 8, the outer side end portion of the front frame portion (14f) of the frame body (14), which extends in the longitudinal direction so as to face the front end edge portion of the suction port (2), has an outer end portion. There is a flange (14g) that is bent so as to face the back of the grill. Further, as shown in FIG. 9, the guide fins (16) are partially removed at two inner positions from the left and right ends of the front frame portion (14f), which have a predetermined dimension, and a flat plate shape is formed on the portions. Support plate (14h) is provided. And this support plate (1
An insertion hole (14i) is formed in the center of 4h) so as to penetrate in the thickness direction of the suction grille (12). This insertion hole (14i)
Is substantially convex in plan view, and is formed at a position where a part of the surface side thereof is covered with the flange (14g).

The air intake of the air conditioner casing (4)
Explaining the part that constitutes the edge of (2), the rear edge of this suction opening (2) is, after the lower end of the air conditioner casing (4) is folded inward, as shown in FIG. , A flange portion (4a) rising slightly upward is formed, and a mounting hole (4b) formed of a rectangular opening is formed at a position of the flange portion (4a) facing the concave portion (14d). Has been done.

In addition, the suction port of the air conditioner casing (4)
A flange portion (4c) similar to the above is also formed on the front side edge portion of (2), and the insertion hole in the flange portion (4c) is formed.
At the position facing (14i), the locking hole (4
d) is formed.

Next, members to be mounted in the above-mentioned recess (14d) will be described. As shown in FIG.
And a hinge member (18) as shown in FIG. 12 is mounted.
The hinge member (18) is made of, for example, polypropylene and has a substantially S-shaped cross section, and is a frame body (14) of the suction grille (12).
Hinge part (18a) fitted in the recessed part (14d) formed in
And a fitting part (18b) as a detachable part that is fitted into a mounting hole (4b) formed in the flange part (4a) of the air conditioner casing (4).
It has and.

The hinge portion (18a) is provided with a substantially cylindrical shaft portion (18e) having a cross section that substantially matches the shape of the opening (14e) formed in the rib (14c). The width dimension of 18e) is formed slightly larger than the width dimension of the concave portion (14d). Further, a slit (18c) is formed at the center of the hinge portion (18a) in the width direction. This allows the shaft
(18e) consists of a pair of left and right.

The fitting portion (18b) is a portion having a substantially U-shaped section facing the hinge portion (18a), and a protrusion (18d) extending over the entire width direction is formed on the outer side surface thereof. ing.

Next, members to be inserted into the above-mentioned insertion holes (16h) will be described. In this insertion hole (14i), as shown in FIG.
The locking member (20) as shown in FIG. This locking member
In (20), the locking part (20a) and the operating part (20b) are connected to each other (20c).
Made up of connected by. The front end of the locking portion (20a) is located on the front side of the front end of the operating portion (20b).
The width of the locking part (20a) is set slightly smaller than the width of the insertion hole (14i), while the operating part (20b)
The width dimension of is set to be slightly larger than the width dimension of the insertion hole (14i), and substantially coincides with the width dimension of the support plate (14h). Furthermore, the cross-sectional shape of the operating part (20b) is the suction grill (12).
The guide fin (16) has a cross-sectional shape that is substantially the same. Also,
Protrusions (20d), (20d), ... Are formed on the upper surface and the side surface of the operating portion (20b) of the locking member (20) and are inserted into the insertion hole (16h). Protrusions (20d), (20d),…
Is brought into sliding contact with the front frame portion (14f) to perform its positioning.

Next, the attachment / detachment and opening / closing operations of the suction grille 12 will be described. First, attach the suction grille (12) to the suction port (2).
The operation at the time of attaching to is explained. In this behavior,
First, the hinge member (18) is placed in the recess (14d) of the suction grill (12).
And the locking member (20) is inserted into the insertion hole (14i).

Each of these operations will be described. As the mounting operation of the hinge member (18), the periphery of the hinge portion (18a) is grasped from both sides thereof and a pressing force is applied to the center side in the width direction (see FIG. 12 (a)). ) Arrow). Then, the width dimension of the slit (18c) is reduced, and the hinge portion (18a) is elastically deformed to reduce the width dimension. Then, in this state, the hinge portion (18a) is fitted into the recessed portion (14d). Then, when the pressing force is released and the hinge part (18a) is pushed all the way into the recessed part (14d), the shaft part (18e) of the hinge part (18a) fits into the opening (14e) of the rib (14c). Get caught. At this time, the hinge part (18a) returns to its original shape, and the shaft part (18e) is easily locked without coming out of the opening (14e). In this way, the hinge part (1
By forming the slit (18c) in 8a), the hinge part is
(18a) can be easily elastically deformed, and this fitting work can be easily performed. Then, in this way, the recess (1
When the hinge member (18) is attached to 4d), the shaft (18
The hinge member (18) and the suction grill (12) can freely rotate relative to each other around the point e).

The inserting operation of the locking member (20) is as follows.
As shown in FIG. 14, the locking portion (20a) of the locking member (20) is inserted into the insertion hole (14i) from the surface side of the suction grill (12). In this state, the engaging part (20a) is provided on the back side of the suction grille (12).
However, the operation parts (20b) are respectively located on the front side. Then, when the locking member (20) is inserted into the insertion hole (14i) in this manner, the front surface and the rear surface of the connecting portion (20c) are located in the insertion hole.
The locking member (20) can be moved within the range of contacting the respective edges of (14i) (see the phantom line in FIG. 14).

Next, the operation of attaching the suction grill (12) to the suction port will be described. In this operation, first, the fitting portion (18b) of the hinge member (18) is fitted into the fitting hole (4b) formed in the flange portion (4a) of the air conditioner casing (4). That is, the curved portion of the U-shaped fitting portion (18b) is fitted into the fitting hole (4b) so that the state shown by the phantom line in FIG.
And pressurize it, the fitting part (18b) elastically deforms to reduce its height, and the protrusion (18d)
By passing over the edge of the fitting hole (4b), the fitting part (4b) is locked in the fitting hole (4b). Then, in this state, the protrusion (18d) is inserted into the inside of the fitting hole (4b), and the hinge member (18) does not easily fall off.

Thereafter, the locking member (20) is set in the retracted position as shown by the solid line in FIG. 14, and the shaft portion of the hinge member (18) is
The suction grille (12) is rotated upward with the (18e) as the rotation center to close the suction port (2) (see FIG. 3). In this state, the locking portion (20a) of the locking member (20) is positioned to face the locking hole (4d) formed in the flange portion (4c) of the air conditioner casing (4). After that, when the operating portion (20b) of the locking member (20) is pushed toward the flange portion (4c) to the forward position shown by the phantom line in FIG. 14, the locking is started from the front frame portion (14f). Department (20
a) projects into the locking hole (4d). As a result, the locking portion (20a) is caught in the locking hole (4d), and the suction grill (1
The closed state of 2) is maintained. Further, in this state, the operating portion (20b) of the locking member (20) is positioned so as to be continuous with the adjacent guide fins (16), and the presence of the locking member (20) is difficult to recognize in appearance. The appearance of the suction grille (12) can be improved.

When the air filter (10) is replaced, the operation for opening the suction grill (12) is performed by gripping the operating portion (20b) of the locking member (20). Move the member (20) from the forward position to the retracted position. As a result, the locked state of the locking portion (20a) with respect to the locking hole (4d) is released,
The suction grille (12) pivots downward around the pivotal portion (18e) of the hinge portion (18a), whereby the suction port (2) is opened (see the solid line in FIG. 2). In this way the suction grill
The rotation operation of (12) is performed well. At this time, the shaft part
Since (18e) is provided on both the left and right sides of the hinge part (18a), the support structure of the suction grille (12) by this hinge part (18a) is a double-supported structure, improving the support strength and preventing damage. It can be prevented. Further, an opening (14e) is formed at the corner of the rib (14c), and the hinge portion is formed by this opening (14e).
Since the position of (18a) is regulated, the suction grill (1
In the open state of 2), it is possible to avoid the situation in which the suction grille (12) is located rearward of the rear surface of the air conditioner casing (4). That is, in the conventional case, as shown in FIG.
As shown in Fig. 5, the hinge member (b), which is the center of rotation of the suction grille (a), was substantially aligned with the height position of the back surface of the suction grille (a). (a)
Was to be located behind the rear surface of the air conditioner casing (c), but such a situation does not occur with the configuration of this example. Therefore, even if the back surface of the air conditioner casing (4) is close to the indoor wall surface, the suction grill
Since the opening / closing function of (12) is not hindered, the degree of freedom of the installation position of the air conditioner (1) can be improved.

Next, the operation of removing the suction grill (12) from the suction port will be described. In this operation, as described above, with the suction grill (12) in the open state, the part of the hinge member (18) facing the suction port (2) is grasped from the up and down direction and its center in the up and down direction. Apply pressing force to the side. Then, the fitting portion (18b) is elastically deformed so that the height dimension becomes smaller. When the hinge member (18) is pulled out from the state shown by the solid line in FIG. 2 to the state shown by the phantom line, the protrusion (18d) rides over the edge of the fitting hole (4b), and The attachment portion (4b) is removed from the fitting hole. In this way, the removal operation of the suction grill (12) is favorably performed.

As described above, according to the structure of this embodiment, the hinge member (18) is interposed between the air conditioner casing (4) and the suction grill (12), and the hinge member (18) is attached to the hinge member (18). , The hinge part (18
a) and a fitting part that can be attached to and detached from the air conditioner casing (4).
(18b) is provided, and the portion functioning as the rotation fulcrum and the portion functioning as the attachment / detachment portion with respect to the suction opening edge portion are provided at different positions, so that the rotation movement and the suction opening of the suction grille (12) Both the attaching / detaching operation with respect to the edge portion can be satisfactorily obtained.

In particular, the hinge portion is a portion that is required to have high rigidity, and when this hinge portion is integrally formed with the suction grill, it is necessary to make the entire suction grill a member having high rigidity or a high chemical resistance. However, in the structure of this example, since the hinge part is composed of the hinge member (18) as a member different from the suction grille (12), only the hinge member (18) is used as a member having high rigidity or resistance. It is possible to use a member having high chemical properties, and it is possible to obtain high rigidity in the hinge portion while suppressing a large increase in cost.

Although the ceiling-hung air conditioner (1) has been described as an example in the present embodiment, the present invention is not limited to this, and the ceiling-embedded air conditioner or the wall-mounted air conditioner is used. It can also be applied to a harmony device.

[0041]

As described above, according to the present invention, the following effects are exhibited. According to the invention described in claim 1, a hinge member for locking the suction grill to one side edge of the suction port, and a detachable section for detachably engaging the hinge member with the one side edge of the suction port, A hinge portion that rotatably supports the suction grill is provided, and a portion that functions as a rotation fulcrum of the suction grill and a portion that functions as a detachable portion with respect to the suction opening edge portion are provided at different positions. In addition, both the rotation operation of the suction grill and the attachment / detachment operation with respect to the suction opening edge portion can be favorably performed. As a result, with a simple structure, both the function required for the rotation fulcrum, that is, the smooth rotation operation without easily falling off, and the function required for the attachment / detachment portion, which is easily performed, are provided. It is possible to obtain both the pivotability and the detachability of the hinge portion of the suction grill.

According to the second aspect of the invention,
Since the locking projection that is locked at the edge of the mounting hole of the suction opening is provided, it is possible to prevent the hinge member from easily falling off from one side edge of the suction opening, and the reliability of the rotation operation of the suction grill is improved. Can be improved.

According to the third aspect of the present invention, since the hinge portion is provided with the pair of shaft portions that are locked to the shaft locking portion of the suction grill, the support structure of the suction grill in the hinge portion is both-sided. With the structure, it is possible to improve the support strength and prevent damage.

According to the invention as set forth in claim 4, since the shaft engaging portion is located at the corner portion on the indoor side in the cross section of the suction grill, the outer wall surface such as the back surface of the casing is in the open state of the suction grill. Even if the outer wall surface of the casing is close to the indoor wall surface, it does not hinder the opening and closing function of the suction grill. The degree of freedom of position can be improved.

According to the fifth aspect of the invention, since the hinge portion is provided with the slit extending in the direction orthogonal to the shaft portion, the hinge portion is easily elastically deformed when the hinge member is fitted into the suction grill. It is possible to perform this fitting work easily.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the internal structure of a ceiling-hung air conditioner.

FIG. 2 is a cross-sectional view of the vicinity of a hinge portion for explaining the attaching / detaching operation of the suction grill.

FIG. 3 is a cross-sectional view of the vicinity of a hinge portion showing a closed state of a suction grill.

FIG. 4 is a view showing a surface of a suction grill.

FIG. 5 is a view showing the back surface of the suction grill.

FIG. 6 is a cross-sectional view of a rear frame portion.

FIG. 7 is a diagram showing a recessed portion.

FIG. 8 is a cross-sectional view of a front frame portion.

FIG. 9 is a perspective view showing a peripheral portion of an insertion hole.

FIG. 10 is a perspective view showing a mounting hole provided in a flange portion of an air conditioner casing.

11A is a plan view of a hinge member, and FIG. 11B is a side view thereof.

12A is a front view of the hinge member, and FIG. 12B is a bottom view thereof.

FIG. 13 is a view showing a locking member.

FIG. 14 is a cross-sectional view showing how the locking member is attached to the suction grill.

FIG. 15 is a view showing a conventional hinge structure.

[Explanation of symbols]

 (2) Suction port (3) Air outlet (4) Air conditioner casing (4b) Mounting hole (5) Blower fan (blower) (6) Heat exchanger (12) Suction grille (14e) Opening (shaft locking part) (18) Hinge member (18a) Hinge part (18b) Fitting part (detachable part) (18c) Slit (18d) Protrusion (18e) Shaft part

Claims (5)

[Claims] 1. A blower (5) and a heat exchanger (6) are arranged in a casing (4) having a suction port (2) and a blow-out port (3), and the suction port (2) has the suction port (2). In an air conditioner provided with a suction grille (12) that can open and close the mouth (2), the suction grille (12) is a suction port via a hinge member (18).
(2) is locked to one side edge of the hinge member (18), and the hinge member (18) has a suction port.
(2) Detachable part (18b) that detachably engages with one side edge
And a hinge part (18a) for rotatably supporting the suction grill (12) with respect to the hinge member (18), the grill attaching / detaching structure of the air conditioner. 2. The attaching / detaching part (18b) is formed with a mounting hole (4b) into which the attaching / detaching part (18b) is attached at one side edge of the suction port (2).
The locking projection (18) that is locked to the edge of the mounting hole (4b).
The grill attachment / detachment structure for an air conditioner according to claim 1, wherein d) is provided. 3. The suction grille (12) is formed with a pair of shaft locking portions (14e) facing each other in the direction of one side edge of the suction opening (2), and the hinge portion (18a) has a shaft engaging portion. The grille attaching / detaching structure for an air conditioner according to claim 1, further comprising a pair of shaft portions (18e) which are engaged with the engaging portion (14e). 4. The shaft locking portion (14e) has a cross section of the suction grille (12) so that the pivotal fulcrum of the suction grille (12) is close to the front corner of the suction grille (12). The grille attachment / detachment structure for an air conditioner according to claim 3, wherein the grille attachment / detachment structure is located in a corner portion on the indoor side in 5. The grille for an air conditioner according to claim 3, wherein the hinge portion (18a) is formed with a slit (18c) extending in a direction orthogonal to the shaft portion (18e). Detachable structure.