JP2002243258A - Ceiling panel structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling panel structure which is easy of attachment even if the ceiling face undulates. SOLUTION: The ceiling panel structure, which is to be attached to a ceiling downstream of the blowout port of a ceiling burying type air conditioner, has a rectilinear base member 320 capable of attachment to the ceiling face, and a rectilinear cover member 340 to be engaged with the rectilinear base member. The engaging part of the base member 320 is equipped with a pair of engaging recesses 334 and 331 on each other's opposite side at places apart in the widthwise direction of the base member. The sidewall 336 on the side closer to the ceiling face out of one recess has an incline 336b which is inclined to be closer to the ceiling face as it is farther from the other recess, and the engaged part of the cover member 340 is equipped with engaged projections 361 and 357b to engage with the engaging recesses of the base member capably of drawing near and separating from each other, facing each other at places apart in the widthwise direction of the cover member. Projection 361 has a guide 341a which can move along the incline 337b of the wall 337 on the side closer to the ceiling of one recess 334.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted air conditioner (hereinafter, also referred to as "ceiling-mounted air conditioner").
The present invention relates to a technique for suppressing dirt on a ceiling due to conditioned air blown out from an outlet such as an air outlet.

[0002]

2. Description of the Related Art A ceiling-embedded air conditioner is provided with an indoor air inlet at a central portion at a bottom of the device, an air outlet of conditioned air at a peripheral portion, and an indoor air at a central portion at a bottom of the air conditioner. After the room air is sucked in from the suction port and heated or cooled by the heat exchanger, the air is blown out as air-conditioned air from the outlet at the peripheral edge of the bottom.

[0003] Since the conditioned air is blown in a direction substantially along the ceiling surface so as to spread over a wide area of the room, it is easy to flow along the ceiling surface. The ceiling surface near the air outlet is soiled due to the contamination of the indoor air. If the air conditioner has been used for a long time, the dirt becomes unsightly and hard to ignore.

[0004] In order to address such a problem, in order to change the direction of the air-conditioning airflow at the air outlet, the air flow direction plate located in the air outlet passage and in the vicinity of the air outlet depends on the degree of contamination of the room air and the cooling / heating. Adjusting the slope (for example,
Japanese Patent Application Laid-Open No. H8-100942, changing the direction of the air blow and the size of the opening near both ends in the longitudinal direction of the air outlet where the flow along the ceiling surface is easy to be formed (for example, Japanese Unexamined Patent Application Publication No.
Japanese Patent Application Laid-Open Nos. 324802, 8-313302, and 9-222237) have been proposed.

[0005] These are intended to directly regulate and control the flow of conditioned air at an air outlet, which forms part of the outer frame or frame of an air conditioner of practically limited size, or is attached to the frame. However, even if it is attempted to directly control the entire flow at the outlet having a large flow velocity / flow rate, if the air-conditioned air flow is not directed to the ceiling surface, the air-conditioned air flow may not sufficiently spread into the room. In addition to the above, not only the expected effect may not always be expected, but also a change in the adjustment may be required if the flow velocity / flow rate itself changes.

Japanese Patent Application Laid-Open No. Hei 8-94160 discloses that
It is disclosed that a step or a projection that functions to turn the conditioned air flow blown from the air outlet of the air conditioner away from the ceiling is formed on a decorative plate forming an outer frame of the air conditioner,
Japanese Utility Model Application No. 61-8 corresponding to Japanese Utility Model Application No. Sho 62-120151
No. 595, it is disclosed that a blowing guide having a cross section of "-" having a similar function is provided on a decorative plate forming an outer frame of an air conditioner, but these techniques have similar problems. May remain.

Further, the above-mentioned technology does not solve the problem of dirt on the ceiling surface at the site where the existing ceiling-mounted air conditioner is used.

Although an attempt has been made to attach a transparent plastic film bent at an obtuse angle to a region of the ceiling surface where dirt is likely to occur, when the flow velocity of the blown air is small, the outside ceiling surface may be contaminated by wraparound. When the flow velocity is high, there is a possibility that the deflecting portion having a U-shaped cross section which is obliquely hung down is deformed so as to be pushed away by the air flow.

On the other hand, it has also been proposed to form an arcuate curved portion on the periphery of an air-conditioning duct opened at the ceiling so as to prevent the ceiling surface from being soiled (Japanese Utility Model Laid-Open No. 7-1284).
However, in this case as well, there is a problem similar to that of the above-mentioned conventional ceiling-mounted air conditioner. In addition,
In the case of an air-conditioning duct, there is no suction port and the entire opening is an air outlet, so the behavior of the air-conditioning air flow ejected from the air outlet depends on the air-conditioning system with an air inlet at the center and an air outlet at the periphery. It is different from the case.

[0010] In order to solve these problems, the present inventor has applied the present invention to an indoor air-conditioning system which can be applied to an existing ceiling-mounted type air conditioner and minimizes contamination of the ceiling surface. It is configured to be attached to the ceiling on the downstream side of the air outlet of the ceiling-embedded air conditioner having an air inlet and an air outlet of the conditioned air at the peripheral edge, and the air-conditioned air flow blown out from the air outlet of the air conditioner. In order to turn a part of the air-conditioning airflow blown out from the air outlet of the air conditioner for the purpose of turning away from the ceiling surface to the indoor air suction port, the air-conditioning airflow is substantially deflected to the airflow. A ceiling panel structure provided with an electrically rigid turning guide portion, configured to be attached to the ceiling outside the air conditioner, and provided with an engagement portion on the side opposite to the side facing the ceiling. One bee A member including a linear base member that can be attached to the ceiling surface on one main surface so as to extend along at least one side edge of the air conditioner; A cover member configured to be engaged with the engagement portion at the engaged portion and fixed to the base member, the cover member being engaged with the linear base member and having an adjustable length. In Japanese Patent Application No. 2000-187145, a ceiling panel structure having
Proposed. Most of the basic concept of the ceiling panel structure and the shape for turning the air flow, etc., are the basis of the present invention or can be applied to the present invention.

[0011]

Problems to be Solved by the Invention Japanese Patent Application No. 2000-187.
145, based on the basic idea of the invention described in 145,
Various types of ceiling panel structures have been prototyped and used.
In the course of this trial production / trial, the inventor has found that the ceiling surface is not always a perfect plane, and that there is often considerable undulation, and that the mounting position of the ceiling panel structure is shifted from the initial mounting position. In such a case, it has been found that it is desirable to easily attach and detach the cover member to and from the base member even in an unnatural posture for mounting the ceiling panel structure at an appropriate position.

In other words, Japanese Patent Application No. 2000-187145.
In the ceiling panel structure of the form described as an embodiment embodying the present invention, there is a surface that is easily affected by swelling of the ceiling or a cover member is not always easily attached to and detached from the base member. 2000-
In addition to the basic idea of 187145, in these respects, the ceiling panel structure described in the embodiment (an engaging portion or an engaged It has been found that it is desirable to improve

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a first object of the present invention is to provide a ceiling panel structure which can be easily mounted even if the ceiling surface is wavy to some extent.

A second object of the present invention is to provide a ceiling panel structure in which a cover member can be easily attached to and detached from a base member.

[0015]

In order to achieve the first object, a ceiling panel structure according to the present invention has an indoor air inlet at a central portion and a conditioned air outlet at a peripheral portion. The air-conditioning apparatus is configured to be attached to the ceiling downstream of the outlet of the plug-in type air conditioner, and the air-conditioning airflow blown out from the outlet of the air conditioner is substantially deflected in a direction away from the ceiling. A ceiling panel structure provided with an electrically rigid turning guide portion, configured to be attached to the ceiling outside the air conditioner, and having an engagement portion on a side opposite to a side facing the ceiling. A structure including a linear base member that can be attached to a ceiling surface on one main surface so as to extend along a side edge of the air conditioner; Fixed to the base structure A cover structure configured to have a substantially rigid turning guide portion with respect to the air flow to turn the conditioned air flow blown from the air outlet of the air conditioner away from the ceiling. Including a linear cover member engaged with the linear base member,
The engaging portion of the linear base member includes a pair of engaging concave portions that are opened at positions separated from each other in the width direction of the linear base member and on the side opposite to the side facing each other. The side wall closer to the surface has an inclined surface inclined so as to be closer to the ceiling surface as being farther from the other concave portion, and the engaged portion of the linear cover member is a pair of engaging concave portions of the linear base member. A pair of engaged projections, which are engaged with each other, are provided at positions spaced apart in the width direction of the linear cover member so as to be elastically close to / separable from each other on the side facing each other. It has a movable guide along the inclined surface of the wall near the ceiling surface of the recess.

In the ceiling panel structure of the present invention, "the air conditioner is configured to be attached to the ceiling outside the air conditioner, and turns the conditioned air flow blown out from the air outlet of the air conditioner in a direction away from the ceiling (surface). For this purpose, a turning guide that is substantially rigid to the air flow is provided. "
Just by attaching it to a predetermined position on the ceiling outside the air conditioner, the turning guidance unit turns the conditioned air flow blown out from the air outlet of the air conditioner in the direction away from the ceiling surface,
The conditioned air blown out from the outlet of the conditioned air can be minimized from hitting the ceiling surface or spreading along the ceiling surface. Stain can be minimized. Here, since the turning guide is substantially rigid with respect to the airflow, even when the flow of the conditioned air is relatively strong, the turning guide can turn the conditioned airflow in a predetermined direction. Also,
Since the ceiling panel structure is located at a certain distance from the air outlet of the air conditioner and in the vicinity of the ceiling surface of the space opened indoors, the air-conditioned air flow spreads and hits to some extent before hitting the turning guide of the ceiling panel structure. Therefore, the conditioned airflow hitting the turning guide can be appropriately turned.

The turning guide typically comprises a turning guide portion having a concave curved guiding surface for turning along the guiding surface, but any detailed or specific one capable of significantly changing the wind direction. Any shape can be used. Note that, in order to largely change the direction of the air-conditioned air flow by the turning guide portion, it is typically preferable to reduce the flow velocity and suppress the wind pressure in advance, as described later.
Further, since the ceiling panel structure is attached to the ceiling surface around or outside the air conditioner and downstream of the air-conditioned air outlet, the air conditioner may already be disposed on the ceiling, Since the ceiling panel structure of the present invention is disposed around an air conditioner already embedded in the ceiling, the ceiling panel structure can not only prevent the ceiling from being stained by the air conditioner, but also can prevent the ceiling from being stained. By covering a part,
It also helps to make dirt less noticeable.

Furthermore, in the ceiling panel structure of the present invention,
"A base structure that is configured to be attached to a ceiling outside the air conditioner and has an engagement portion on a side opposite to a side facing the ceiling, and extends along a side edge of the air conditioner. And a linear base member that can be attached to the ceiling surface with one main surface, and is engaged with an engaging portion of the base structure at an engaged portion and fixed to the base structure. A cover structure that includes a linear cover member engaged with the linear base member '', the base member is attached to the ceiling surface by fixing means such as screws,
The cover member may be covered on the base member so as to cover the attachment portion by the attachment means, and the engaged portion of the cover member may be engaged with the engagement portion of the base member. easy. Note that the base structure is typically
The cover structure includes a straight base member and a corner base member, and the cover structure typically includes a straight cover member and a corner cover member. However, the base structure may be formed of one linear base member, and the cover structure may be formed of one linear cover member.

In the above, since the linear base member is provided separately from the linear cover member, the portion of the linear base member covered by the linear cover member can be fixed with screws or the like without considering the appearance. It can be formed with a structure having an engaging portion that is easily attached to the ceiling surface and easily engages with the linear cover member. As a result, it is possible to easily attach the linear base member to the ceiling surface, and it is possible to attach the linear base member even with a minimum number of workers (for example, one person). Further, since the engaging portion of the linear base member can be substantially hidden by the linear cover member, the engaging portion of the linear base member and the engaged portion of the linear cover member can be easily and firmly engaged.・ Since a desired shape or structure that can be fixed or easily disengaged can be selected, engagement / fixation and disengagement of the linear cover member with respect to the linear base member can be easily performed. It becomes possible. Therefore, both the attachment of the linear base member to the ceiling surface and the engagement / fixation of the linear cover member to the linear base member can be performed by a minimum number of workers (for example, one person). The body can be mounted on the ceiling surface with a minimum number of workers (for example, one person). Each of the straight cover member and the straight base member may be a single or integral member, or may be a combination of a plurality of members.

Further, in the ceiling panel structure of the present invention,
"The straight cover member includes a turning guide portion that is substantially rigid with respect to the air flow so as to turn the conditioned air flow blown out from the air outlet of the air conditioner away from the ceiling."
From the above, by utilizing the thickness and width of the linear cover member associated with the airflow adjusting structure such as the turning guide portion for adjusting the flow of the conditioned air, the engagement of the linear base member and the linear cover member are covered. Since it is easy to fit the engaging portion within the range of the thickness and the width of the linear cover member, the engaging portion and the engaged portion suitable for the work can be obtained.

In this specification, the phrase "one principal surface can be attached to the ceiling surface" with respect to the linear base member typically means that one principal surface of the linear base member is in direct contact with the ceiling surface. In some cases, the linear base member is attached to the ceiling surface with the projections (legs) protruding from one main surface and facing the ceiling surface abutting against the ceiling surface. You may be. Further, "the linear base member extends along the side edge of the air conditioner" typically means that the linear base is parallel to the linear side edge of the air conditioner having the linear side edge. Although the members extend, in some cases they may not be parallel,
When the side edge of the air conditioner is not linear, the linear base member may extend in a direction substantially similar to the average extending direction of the side edge. Further, with respect to the engaging portion of the linear base member, "the side opposite to the side facing the ceiling surface" refers to a desired direction from the surface of the linear base member opposite to the side facing the ceiling surface. This is a purpose including a protruding portion, and is not limited to a surface parallel to the ceiling surface.

In order to adjust the flow of the conditioned air, the conditioned air flow is turned (to change the direction of the flow of the air flow), or resistance is applied to the air flow (the flow pressure of the air flow becomes the flow resistance of the air flow to reduce the wind pressure). Suppressing and decelerating the airflow) Both when the airflow is not changed and when it is gradually changed, by guiding the airflow (defining the flow direction without actually obstructing the airflow) ) Is typically provided by the surface of the linear cover member.
If the straight cover member almost completely covers the straight base member, only the surface of the cover member plays this role.
A part or most of the linear base member may be exposed at the ceiling without being covered by the linear cover member. In such a case, the surface shape for turning, resistance application (deceleration) and guidance for adjusting the flow of the conditioned air may be provided in part also by a linear base member. Even in this case, the linear cover member not only adjusts the air-conditioning airflow at the turning guide, but also covers the mounting structure for mounting the linear base member on the ceiling surface, or forms a straight line with the linear base member. The engagement portion with the cover member may be substantially hidden. Note that the guide portion having the turning function typically also has a resistance applying function to some extent.

Moreover, in the ceiling panel structure of the present invention,
"The engaging portion of the linear base member is provided with a pair of engaging concave portions that are opened at a position separated in the width direction of the linear base member and on a side opposite to the side facing each other, The engaged portion is provided with a pair of engaged projections that engage with the pair of engagement recesses of the linear base member on mutually facing sides at locations separated in the width direction of the linear cover member. Therefore, not only can the pair of engaging portions of the linear base member and the pair of engaged portions of the linear cover member engaged with the linear base member be hidden behind the linear cover member, but also the linear base member can be hidden. With the corresponding engaged projection of the linear cover member engaged with the other engagement recess of the pair of engagement recesses, the one engagement recess of the linear base member is To engage and disengage the corresponding engaged projections of the linear cover member Ri may perform the release of engagement and engagement of the linear cover member with respect to the linear base member.
In addition, since the pair of engaging recesses of the linear base member are opened in the opposite direction to the width direction, both side walls (side walls) defining the recess are formed on the ceiling surface along the longitudinal direction of the linear base member. Since it can extend substantially parallel, not only can the wall (side wall) be deformed to some extent in the longitudinal direction according to the undulation of the ceiling surface, but also the pair of engagement projections of the linear cover member can be formed. Since it projects in the opposite direction to the width direction, the ridge formed by the engagement projection can extend substantially parallel to the ceiling surface along the longitudinal direction of the linear cover member.
The ridge is relatively easily deformed to undulate along the longitudinal direction according to the undulation of the ceiling surface. As a result, the undulation on the ceiling surface is easily absorbed substantially by the deformation of the linear base member and the linear cover member corresponding to the undulation.
In other words, even if the linear base member undulates to some extent according to the undulation of the ceiling surface, the one of the pair of engagement recesses of the linear base member is opposite to the one (that is, the other).
It is possible to forcibly fit the corresponding engagement protrusion of the linear cover member into the engagement recess of (1). Here, one side wall of the other engagement recess is straight so that the insertion of the corresponding engaged projection of the linear cover member into the other engagement recess of the linear base member is guided or guided. The corresponding projections of the cover-shaped cover member to guide the corresponding engagement projections, or the engagement projections are tapered like a wedge or open so that the engagement recesses become larger toward the opening side. preferable.

In this case, preferably, the linear cover member has a plate-like portion which extends substantially parallel to the ceiling surface in the vicinity of the other engaged portion. This makes it easy for the linear cover member to bend and deform to some extent along the longitudinal direction in the vicinity of the engaged projection in accordance with the undulation of the ceiling. In addition, this plate-shaped part can serve as a guide surface with respect to an air-conditioning airflow.

In addition, in the ceiling panel structure of the present invention,
"A linear cover having an inclined surface such that a side wall (wall portion) closer to the ceiling surface of one of the engagement recesses of the linear base member is closer to the ceiling surface as being farther from the other recess. The engaged projection corresponding to the one engaging recess of the pair of engaged projections of the engaged portion of the member is along the inclined surface of the wall near the ceiling surface of the one recess. It has a movable guide section, so if the ceiling surface is undulating,
Even if the linear cover member undulates in the longitudinal direction along with the undulation of the ceiling surface, this undulation is linear with respect to the inclined surface of the wall portion closer to the ceiling in one of the engagement recesses of the linear base member. It can be absorbed by the guide portion of the engaging projection of the cover member being displaced in a direction approaching the ceiling surface or in a direction away from the ceiling surface. Therefore, even if the ceiling surface has undulation, it is possible to prevent the engagement of the linear cover member with the linear base member and the release of the engagement from becoming difficult.

Here, the side wall farthest from the ceiling surface among the side walls forming the one concave portion of the linear base member may be substantially parallel to the ceiling surface, but the engagement portion of the linear base member may be substantially parallel to the ceiling surface. In order to facilitate the engagement of the engaged portion of the linear cover member with respect to the inclined surface, the inclined surface is inclined on the side opposite to the side facing the ceiling surface so as to be closer to the ceiling surface as being farther from the other concave portion. It is preferable to have

[0027] In this case, the linear cover member is straightened in a state in which the corresponding engaged projection of the linear cover member is engaged with the other engagement recess of the linear base member. The guide portion of the engaged projection along the inclined surface of the side wall farther from the ceiling surface of the engaged projection of the linear base member by simply pressing against the base member. To move the engaged projection over the inclined surface, and further engages the guide portion with the inclined surface of the one side wall of the linear cover member. After the engagement, the linear cover member The engagement of the linear cover member with the linear base member can be achieved simply by releasing the application of the pressing force to the linear base member as desired. Here, the side wall closer to the ceiling surface of one of the engagement recesses extends farther from the other engagement recess than the side wall farther from the ceiling surface.

In this state, the linear cover member is moved linearly while the corresponding pair of engaged projections of the linear cover member are engaged with the pair of engagement recesses of the linear base member. By simply pressing against the base member, the guide portion of one engaged projection is moved along the inclined surface of one engagement recess away from the other engagement recess, and a pair of linear cover members is moved. The distance between the engaged projections can be increased, and the engagement of the linear cover member with the linear base member can be released using a tool or the like as desired.

[0029] Each of the pair of engaging recesses of the linear base member may intermittently extend in a line along the extending direction of the linear base member over substantially the entire length in the extending direction. However, in order to release the engagement between the engagement recess and the engaged projection so as to be peeled off from one end in the longitudinal direction, at least one of the engagement recesses of the pair of engagement recesses is accordingly The side wall continuously extends in the longitudinal direction of the linear base member (ie, the recess is in the form of a groove extending along the longitudinal direction of the linear base member).
Is preferred. The same applies to the corresponding engaged projection of the linear cover member. To release this engagement,
For example, even if the tip of an elongated tool such as a screwdriver is used, the side wall is smoothly curved in the shape of a square with a handle on one side so that interference with the ceiling surface can be avoided. A tool such as a spatula may be prepared.

The linear cover member is typically substantially U-shaped.
The protrusion having a U-shaped cross-sectional portion and engaging with one of the recesses of the linear base member among the pair of engaged protrusions is formed on one leg of “U”, A turning guide is formed on the other leg of "U". In this case, by pressing the bottom of “U” of the linear cover member in a state where the engaged projection of the linear cover member is engaged with the other concave portion of the linear base member, the (one side) of the linear cover member is pressed. "U" along the inclined surface "U" of either side wall of the engaging recess
Of the one leg is moved away from the tip of the other leg of "U", and the tips of the two legs of "U" are opened. That is, since the linear cover member has a portion having a “U-shaped” cross-sectional shape, the linear cover member can be easily engaged with the linear base member and deformed to release the engagement. Can be performed, and the engagement and disengagement can be easily performed. The length of the leg of "U" is necessary for the turning guide to perform the turning action of the air flow, and the portion of this cross-sectional shape "U" secures the height as the turning guide. This facilitates the attachment and detachment of the linear cover member.

In the above description, the one concave portion is typically a concave portion of the pair of concave portions that is farther from the air outlet of the air conditioner. However, when the amount of protrusion in the direction perpendicular to the ceiling surface can be relatively large, the concave portion closer to the air outlet of the air conditioner may be used among the pair of concave portions.

[0032] In the ceiling panel structure of the present invention, typically, the linear base member is closer to the side edge of the air conditioner where the air outlet is located on the main surface opposite to the one main surface. An air-conditioning air flow guide surface substantially parallel to the one main surface is provided at an end in the width direction, and the other engagement portion is provided at a portion farther from a side edge of the air conditioner than the guide surface in the width direction, The linear cover member has, at its widthwise inner end, the other engaged portion that engages with the other engaging portion of the linear base member, and the air among the other engaged portion is air. The portion facing the air outlet of the harmony device is a resistance imparting projection that acts as a resistance for reducing the flow velocity of the conditioned airflow flowing along the guide surface of the linear base member.

In this case, the engaged projection for the linear cover member can function as the resistance imparting projection as it is on the opposite surface portion. In addition, the linear cover member has another resistance-imparting projection that acts as a resistance that suppresses the wind pressure of the conditioned air flowing along the surface of the cover member and reduces the flow velocity more than the surface on the opposite side of the engaged projection. It may be further provided on the downstream side and on the upstream side of the turning guidance section. In this case, typically, the downstream resistance application projection is configured to have a larger resistance application function than the upstream resistance application projection. However, the reverse is also possible. In any case,
By reducing the flow velocity of the air-conditioning airflow flowing into the turning guidance unit and reducing the wind pressure, the airflow hitting the turning guidance unit can easily flow along the guide surface of the turning guidance unit.

The ceiling-embedded air conditioner has an external shape, that is, an air conditioner embedded in the ceiling, as long as it has an indoor air inlet at the center and a conditioned air outlet at the periphery. The two-dimensional shape that extends along the ceiling surface may be a rectangle such as a square or a rectangle, or any other shape such as a circle. Of course, the air conditioner
Although it has a three-dimensional shape protruding from the ceiling surface to some extent, any three-dimensional shape can be used as long as it has an indoor air intake at the center and an air-conditioned air outlet at the periphery. Good.

The air outlet of the conditioned air is formed at the peripheral portion and is configured to blow out the conditioned air at least to the outside even if the air outlet is provided at a part of the peripheral portion. In practice, the outlet may be provided almost all around. For example,
If the plane shape of the ceiling surface of the air conditioner is a typical substantially rectangular shape, the air outlet may be formed along only one of the four sides of the rectangle, but may actually be formed along two parallel sides. It may be formed in parallel or along all four sides, and in some cases, there may be an outlet at the corner.

[0036] The ceiling panel structure typically has a cover member provided with a turning guide for each air outlet of the air conditioner so as to turn the flow of the conditioned air blown out from the air outlet. Therefore, when only one air outlet is formed in a straight line, typically, the cover member also comprises one linear cover member (of course, one linear cover member is formed by combining a plurality of portions. May be). In this case, it is typically preferable to attach end caps covering both ends to both ends. That is, in this case, the ceiling panel structure preferably has a linear base structure (typically, in a state where the engaging portion of the linear base member and the engaged portion of the linear cover member are engaged with each other. Further comprises an end cap overlying at least one of the longitudinal ends of the linear base material) and the linear cover structure (typically corresponding to the linear cover member). However, if desired, even if a corner cover member (bent at a corner) is further provided at the end of the linear cover member as a cover member, the cover member may surround the entire periphery of the air conditioner in some cases. Further, a cover member may be provided in a frame shape so as to form a closed curve such as a rectangle or a quadrilateral.

The ceiling panel structure is formed in a shape and a size corresponding to the external shape and size (size) of the air conditioner embedded in the ceiling surface. Therefore, the linear base member and the linear cover member forming the ceiling panel structure are formed so as to be adjustable in length. This length adjustment is typically performed by a worker cutting a linear base member or a linear cover member having the same shape in a cross section perpendicular to the longitudinal direction to a desired length at a work site by a saw or the like. Done.
Therefore, the material of the linear base member and the linear cover member constituting the ceiling panel is typically made of a plastic material, and is typically formed by extrusion. As the plastic material, a vinyl chloride resin may be used, but other resins may be used to minimize environmental pollution. However, other materials such as metal, wood, or a composite material of metal and plastic may be used as long as the operator can cut with a saw or the like at the work site.

The ceiling panel structure typically has a ceiling near the outer periphery of the air conditioner depending on the size of the space around or around the air conditioner on the ceiling surface in which the air conditioner is embedded. Mounted around the air conditioner to avoid obstructions or obstructions, such as electrical wiring outlets and various detectors such as smoke detectors, which may be mounted on the surface. Therefore, the ceiling panel structure
Typically, the width of the linear base member or the like forming the ceiling panel structure is also adjustable. Since one side of the air conditioner can reach close to 2 m, the linear base member typically extends along the longitudinal direction so that the width can be easily adjusted over a length of about 2 m. A weakened portion is provided, and its width can be adjusted as desired by making a cut along the weakened portion with a cutter or the like to remove a portion in the width direction. Such a weakened portion is typically a groove or the like along the longitudinal direction. Where the groove is
From the viewpoint of aesthetics and the like, it is typically formed on the back side, that is, on the side facing the ceiling surface.

Accordingly, in one exemplary ceiling panel structure of the present invention, the linear base member has one lower surface of the ceiling so as to extend along at least one linear side edge of the air conditioner. A linear base member attachable to the main surface and having an adjustable length and width is included, and a cover member is engaged with the linear base member and includes an adjustable linear cover member.

In this case, by adjusting the width of the linear base member, it is possible to arrange the linear base member so as to avoid the obstructing parts near the air conditioner. Also,
Adjusting the length of the linear base member and the linear cover member at the work site according to the length of the outlet of the conditioned air of the air conditioner or the size of the side of the air conditioner extending parallel to the outlet. It becomes possible to mount a ceiling panel structure.

In one typical ceiling panel structure of the present invention, the base structure is located adjacent to the end of the linear base member so as to be located outside the corner of the air conditioner. A corner base member attachable to the ceiling surface on one major surface, and the cover structure includes a corner cover member engaged with the corner base member adjacent an end of the linear cover member.

In this case, for example, around at least two sides of the outer periphery of the air conditioner, such as when the planar shape is substantially rectangular,
Typically, the entire circumference may be surrounded by a ceiling panel structure.

The corner base member is typically configured to engage over the ends of the linear base member and the linear cover member. Here, “cover” refers to a state where the cover is sequentially stacked from below on the ceiling surface. However, the corner base member has a side edge located closer to the ceiling surface than at least one of the linear base member and the adjacent end portion of the linear cover member, or substantially equal to the linear base member. May be located at the same height.

When the corner base member covers the ends of the linear base member and the linear cover member, typically,
A corner base member having a part of a turning guide portion that is substantially rigid with respect to the air flow so as to turn the conditioned air flow blown from the air outlet of the air conditioner away from the ceiling; Has a substantially U-shaped cross section and is engaged with the outwardly engaging portion of the outer wall of the corner base member at the inwardly engaged portion of one leg of the “U”;
In this case, the corner base member which abuts on the inner surface of the bottom of the “U” to the extension end of the turning guide portion of the corner base member,
Typically, a resistance imparting protrusion serving as a resistance for reducing the flow velocity of the conditioned air flow flowing along the surface of the corner base member is provided upstream of the turning guide. In this case, the engagement of the corner cover member with the corner base member is easily released.

One typical ceiling panel structure according to the present invention is provided on the downstream side of the air outlet of a ceiling-embedded air conditioner having a room air inlet at the center and an air-conditioning air outlet at the periphery. A ceiling provided with a turning guide portion which is substantially rigid with respect to the air flow so as to turn the air-conditioned airflow blown out from the air outlet of the air conditioner away from the ceiling. A panel structure,
A base member that can be attached to a ceiling surface on one main surface so as to extend along each of the linear side edges of the air conditioner and that can be adjusted in length and width in an extending direction, The one provided with an engaging portion on the side opposite to the main surface, and the one configured to be engaged with the engaging portion of the base member at the engaged portion and fixed to the base member so that the length can be adjusted. A cover member provided with a turning guide that is substantially rigid with respect to the air flow so as to turn the conditioned air flow blown out from the air outlet of the air conditioner away from the ceiling. A pair of engagement portions of the linear base member are opened at opposite sides of the linear base member in the width direction of the linear base member and opposite to each other and extend in the extending direction of the linear base member. The side wall closer to the ceiling surface of one of the recesses is provided with an engagement recess. The engaged portion of the linear cover member is inclined so as to be close to the ceiling surface, and the engaged portion of the linear cover member is engaged with the pair of engagement concave portions of the linear base member. A straight line having a guide portion movable along an inclined surface of a wall portion on a side near a ceiling surface of the one concave portion, wherein the engaged projection portions are provided so as to face each other at positions separated in the width direction. And a corner panel structure located between adjacent ends of the linear panel structure and engaged with adjacent ends of the linear panel structure.

At least a part or at least one of the base member and the cover member forming the ceiling panel structure, as long as dirt on the ceiling surface near the air outlet of the embedded ceiling air conditioner that is already provided can be covered. Although the whole may be made of a transparent or translucent material, a base member and a cover are required to reliably cover the dirt on the ceiling near the air outlet of the already installed ceiling air conditioner. Preferably, the member typically comprises a substantially opaque material. However, when the ceiling surface is not dirty yet or when the air conditioner is newly attached to the ceiling surface, at least a part thereof may be made of a transparent or translucent material.

In the above, the ceiling panel structure is attached to the ceiling downstream of the outlet of the ceiling-embedded air conditioner having the indoor air inlet at the center and the outlet for conditioned air at the periphery. It was explained on the premise of this. However, the feature of the ceiling panel structure as described above is that the ceiling panel structure has an air-conditioned air blowout device provided with only an air-conditioned air blowout port instead of a ceiling-mounted air conditioner (substantially having an opening without an intake port). The ceiling panel structure of the present invention is also effective to some extent when it is mounted on the ceiling downstream of the air-conditioned air outlet of an air-conditioning duct whose entire upper portion is an air outlet. It can also be applied to a type of conditioned air blowing device.

[0048]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described with reference to a preferred embodiment shown in the accompanying drawings.

[0049]

FIG. 1 shows a ceiling-mounted air conditioner 200 embedded in a ceiling surface 201 as viewed from below (FIG. 1A) and a ceiling panel structure according to one embodiment of the present invention. Body 31
0 (FIG. 1 (b)) is attached to the ceiling surface 201 around the air conditioner 200 (FIG. 1 (c)).

The ceiling panel structure 310 has four linear panel structures 311 and four corner panel structures 312 whose lengths can be adjusted.
Numeral 12 connects the linear panel structures 311 and 311 adjacent to the corner panel structure 312 at respective adjacent ends.

When the air conditioner 200 has a vertically long rectangular outer shape 200a as shown in FIG.
The ceiling panel structure 310 is assembled in a vertically long rectangular shape as shown by an imaginary line 310a in FIG. On the other hand, when the air conditioner 200 has a horizontally long rectangular outer peripheral shape 200b as shown in FIG. 1F, the ceiling panel structure 310 is imaginary line 3
It is assembled in a horizontally long rectangular shape as shown by 10b.
In the case where the air conditioner 200 has a square shape 200c as shown in FIG. 1D, as shown in FIG. 1D, the shape shown by a solid line in FIG. (The size of one side increases or decreases as necessary).

As shown in FIGS. 5 to 9, each linear panel structure 311 of the ceiling panel structure 310 has a linear base member 320 (FIGS. 5 to 7) made of a plastic material.
And a linear cover member 340 (see FIGS. 5 and 8 to 9) made of a plastic material and connected to the linear base member 320. In the following examples, specific sizes are illustrated, but these are typical preferable examples, and the present invention is not limited to these sizes and shapes, or to similar sizes and similar shapes. Not something.

The linear base member 320 has a width W1 of 20 c as shown in FIGS. 6 and 7A and 7B.
A plate-like portion 32 having a length L1 of about 200 m and a maximum of about 200 cm
One. The plate-shaped portion 321 includes a main plate-shaped portion 322 having a thickness D1 (FIG. 7B) of about 3 mm and one main surface of the main plate-shaped portion 322 (a surface facing the ceiling surface 201, that is, a back surface). 323, and extends integrally from one end 325 of the main plate-shaped portion 322 and has a thickness D2 of about 2 mm (more specifically, for example,
(About 2.2 to 2.3 mm) and a guide plate-shaped portion 326 having a width W2 of about 10 cm. At least one of the main plate-shaped portion 322 and the guide plate-shaped portion 326 has a thickness that becomes thinner as approaching the width-direction inner end (the right end in FIGS. 7A and 7B). However, the main plate portion 322 and the guide plate portion 326 may have the same thickness.

On the main surface 324 side of the guide plate portion 326,
The groove 327 extending over the entire length in the longitudinal direction is, for example, 1
It is formed at intervals of cm. This spacing may be larger or smaller, and may be non-uniform if desired. Therefore, for example, at the installation site, the installation operator further cuts at the tip of a cutting tool such as a cutter knife along a desired one of the grooves 327, so that the width W2 of the guide plate-shaped portion 326, and The width W1 of the base member 320 can be adjusted by the worker alone at the installation site. As long as the guide plate-like portion 326 can be weakened so that it can be easily separated along the groove 327 and there is no risk of separation, cracking or cracking in normal handling.
May have any width, depth, or cross-sectional shape. In this example, a groove 327a similar to the groove 327 is also provided on the other main surface of the guide plate-shaped portion 326 of the plate-shaped portion 321.
For example, an edge that is easily damaged during transportation or the like is cut off and used by the groove 327a before use if desired. The groove 327a may not be provided.

The surface of the guide plate-shaped portion 326 on the ceiling side, that is, the back surface 324, is further provided with the same depth as the groove 327.
Recesses 327c wider than 27 are formed at equal intervals in the width direction and over the entire length in the longitudinal direction. This recess 3
27c is used for engagement with an end cap 450 described later (see FIG. 19). On the surface 328 of the guide plate portion 326, small protrusions 327d having a height of the order of 0.1 mm are formed at equal intervals in the width direction of the guide plate portion 326 and over the entire length in the longitudinal direction. This design projection 327d also functions to some extent as a resistance to airflow. However, the projection 327d may not be provided.

Further, in the vicinity of the groove 327a on the surface 328 of the guide plate-shaped portion 326, a ridge or projection 327e as exaggerated by an imaginary line in FIGS. 6 and 7A and 7B is shown. May be formed. This projection 32
7e is taller than the protrusion 327d (for example,
The height is about 2 mm and the width is about 1 mm), and is used for standard positioning when the linear panel structure 311 is attached to the ceiling surface 201 with a standard width. In other words, when the linear base member 320 is used as it is or cut along the groove 327a and has a standard width (substantially the maximum width), a portion or the groove 327a of the guide plate-shaped portion 326 on the tip side of the protrusion 327e. A tip portion 326a between the projection and the projection 327e is inserted between the outer frame or decorative panel portion of the air conditioner 200 and the ceiling surface 201, and the projection 327e abuts on the outer edge of the decorative panel portion of the air conditioner 200. The positioning of the linear base member 320 is performed, and thus the positioning of the linear panel structure 311 is performed. However, the positioning ridge 327e shown by the imaginary line may not be provided. Further, the tip 326a and the like are connected to the air conditioner 20.
0, instead of being inserted between the outer frame or the decorative panel portion and the ceiling surface 201, as shown in FIG.
May be simply brought into contact with the outer frame or the outer surface of the decorative plate portion.

A key-shaped engaged portion 357 as an engaged portion at one end of the cover member 340 is provided on the other main surface, that is, the front side surface 329, of the one end 325 of the main plate portion 322.
A projection 330 that defines an engagement recess 331 as an engagement portion into which FIGS. 8 and 9 fit is formed. Since the projection 330 is associated with the engagement recess 331, the projection 330 is also referred to as an engagement projection. In this specification, when one of the members that realizes the engagement relationship is called an "engaging portion", the other is called an "engaged portion". Both parts may be referred to as an engaging part or an engaged part without distinguishing them from each other. The same applies to the engagement relationship between elements different from the engagement elements 331 and 357 mentioned here. The protrusion 330 cooperates with the main surface 328 that forms the guide surface of the guide plate-shaped portion 326 to form a concave portion 331 that opens inward in the width direction.
8, 329 has a curved projecting wall portion 332 projecting therefrom.
Engagement recess 331 of projection 330 and curved projection wall 332
Extend continuously over the entire length of the linear base member 320. However, if desired, the curved protruding wall portion 332
May have a desired length along the longitudinal direction and may be equally spaced and arranged in a row to define an engagement recess 331 that extends substantially continuously over the entire length of the linear base member 320 as a whole. .

At the other end 333 of the main plate-shaped portion 322, that is, at the outer end 333 in the width direction of the linear base member 320, an engagement recess 334 opened outward in the width direction and directed toward the ceiling surface is formed. An engagement protrusion 335 protruding from the main surface 328 is formed on the main surface 328. The engagement recess 334 and the engagement protrusion 335 also extend over the entire length of the linear base member 320 in the longitudinal direction. In this specification, regarding the linear panel structure 311, the linear base member 320, and the linear cover member 340, “outward (or outward)” and “inward (or inward)” in the width direction are respectively: When the linear panel structure 311, the linear base member 320, and the linear cover member 340 are arranged in a predetermined direction with respect to the air conditioner 200, the side farther (the direction away from) and the side closer to the air conditioner 200. (Approaching direction). When viewed in a cross section like FIG. 5B or FIG. 7B, the protruding portion 335 is positioned more inward in the width direction as the distance from the main plate portion 322 increases (in other words, the main plate portion 322 The base side inclined portion or the inclined guide portion 336 protruding from the main surface 328 so as to protrude from the main surface 328 so that the concave portion 334 is formed between the base side engaging portion 336 and the base side engaging portion 336. A semicircular curved portion 336a that is convexly curved downward from the linearly extending end of the inclined portion 336, and the semicircular curved portion 336a
And a distal-side inclined portion 337 that extends in a direction substantially parallel to the base-side inclined portion 336 from the curved end. As described below,
When the cover member 340 is engaged with or disengaged from the engaged portion, the ceiling side wall portion that is inclined so as to be closer to the ceiling surface 201 as being farther from the concave portion 331 on the inner side in the width direction, that is, the inner surface 336b of the base side inclined portion 336 is F1. , F2. Further, a widthwise outer end portion or a front end portion 337a of the tip side inclined portion 337 is a main plate-shaped portion 322 corresponding to an end portion of the base side inclined portion 336.
The outer surface (the surface opposite to the surface facing the ceiling surface 201) 337b of the tip-side inclined portion 337 is located on the inner side in the width direction than the width-direction outer end portion 333 of the upper surface. When the cover member 340 is engaged, it is a guide surface in the F2 direction when the cover member 340 is engaged.

At the center in the width direction of the front surface 329 of the main plate-shaped portion 322, a projection 338 extending along the longitudinal direction is formed, and a concave portion 339 is formed on the back surface 323.
As can be seen from FIG. 7B, the cross-sectional shape perpendicular to the longitudinal direction of the linear base member 320 is the same in the entire region in the longitudinal direction. Linear cover member 34 described later
The same applies to 0.

The main plate-shaped portion 322 is further formed with a screw hole H for passing a shaft portion such as a mounting screw. Hole H so that the screw mounting position can be selected on the ceiling surface
Has a long hole. The hole H may be provided with a concave portion whose peripheral edge is beveled so that the head of the screw fits therein, and as long as the engagement with the linear cover member 340 is not prevented, the main plate-shaped portion 3
22 may be formed in different portions in the width direction. The main plate-shaped portion 322 of the linear base member 320 is covered from below by a linear cover member 340 described below,
The surface 329 is a plate-like portion that is hidden. Therefore, the head of the screw or the like attached to the main plate-shaped portion 322 is hidden by the linear cover member 340.

As shown in FIGS. 8 and 9, the cover member 340 has a width W 3 of the main plate-like portion 32 of the base member 320.
2 and the length L3 is the length L of the base member 320.
1 (L3 = L1). In this specification, unless stated otherwise,
The terms “upper” and “lower” refer to a side closer to or near the ceiling surface and a side farther or away from the ceiling surface in a state where the ceiling panel structure is attached to the ceiling surface, respectively. As shown in FIG. 9B, the cover member 340 is slightly inclined so as to be located closer to the ceiling surface (upper side) and more outwardly in the width direction so as to extend substantially up and down. A wall portion 341, a lower end guide portion 343 extending substantially horizontally from a lower end 342 of the end wall portion or the side wall portion 341, and a short upper and lower portion extending substantially vertically at a right angle from the inner end portion 344 of the lower end guide portion 343. Direction or vertical wall portion 345, a turning guide portion 347 as a turning guide portion curved convexly downstream from the upper end 346 of the vertical wall portion 345, and an upstream side integrally from an upstream end 348 of the turning guide portion 347. A downwardly and upstream convex semi-cylindrical resistance-imparting projection 349 extending to the air-conditioning air flow and decelerating the air flow.
An upstream curved guide 351 which extends integrally from the upstream end 350 of the resistance applying projection 349 to the upstream side and is slightly convex upward.
An upstream horizontal guide portion 353 that extends substantially horizontally from the upstream end 352 of the upstream curved guide portion 351, and a base member that is continuously formed at the upstream (inward in the width direction) end of the horizontal guide portion 353. And a key-shaped end portion 357 as an engaged portion to be engaged with the engaging concave portion 331 on the inner side in the width direction of 320.

The key-shaped end 357 is formed by an inclined wall 357a.
A substantially horizontal wall portion 357b, a substantially vertical inclined wall portion 357c, and a substantially horizontal and wedge-shaped cross section which fits into the engaging concave portion 331 opened inward in the width direction of the engaging portion 330 of the base member 320. And a tapered small projection 357d. In other words, the wall portions 357 a to 357 a of the key-shaped end portion 357.
A recess 35 formed by 57d and opening outward in the width direction.
8, the curved protruding wall portion 332 of the engaging protruding portion 330 of the base member 320 fits. In the assembled state as shown in FIG. 5 (b), the key-shaped end 357 is not
And 357b form a small resistance imparting projection 359. As long as the small protrusion 359 can act as a resistance imparting protrusion that reduces the airflow by resistance to the air-conditioned airflow, the cross-sectional shape of the surface of the wall 357c and the wall 357b is a part of an ellipse. Other shapes may be used. Similarly, in a typical example, the downward height of the small protrusion 359 is, for example, about 5 mm to about 1 cm, but is higher than about 1 cm as long as the small protrusion 359 can function as a resistance imparting protrusion. May be lower than about 5 mm.

The downstream end 350 of the upstream curved guide portion 351
And the downstream end 35 of the upstream horizontal guide portion 353
9, legs 355 and 356 that are in contact with the lower main surface 329 of the main plate-shaped portion 322 of the base member 320 are formed on the back surface of the vicinity portion, that is, on the upper surface 354 shown in FIG. In this example, the leg 355 has two leg portions 3
The projection 338 of the base member 320 fits into a recess between the legs 355 and 356.
Note that the leg 355 may not be provided.

The turning guide portion 347 extends almost vertically and provides a flow resistance and greatly changes the flow direction, and an upstream portion 347a at the upper end 347c.
And a downstream portion 347b that extends smoothly at an angle close to the horizontal and then provides a flow resistance and largely changes the flow direction to guide the flow to the center side and downward of the air conditioner 200. Portion 347b is the downstream end 34
6 smoothly connects to the vertical wall 345. Here, the vertical height from the end 350 of the guide portion 351 to the lower end of the horizontal wall portion 343 is, for example, about 4 cm to 5 cm. However, even if it is larger (for example, 10 cm or more) or smaller (for example, 2 cm to
(About 3 cm).

Here, as can be seen from FIGS. 8 and 9B, the linear cover member 340 includes a portion 340u having a substantially “U” -shaped cross section on the outer side in the width direction. That is, in the U-shaped portion 340u, the horizontal guide portion 343 is at the bottom of “U”, the downstream vertically inclined end wall portion 341 is at one leg of “U”, and the short vertical wall portion 345 The turning guide portion 347 and the semi-cylindrical resistance applying projection 349 constitute the other leg as a whole. A cavity 34 is provided between the two legs 341 and 345, 347, 349.
The U-shaped configuration or structure with 0 s allows the distance between the upper ends of the legs to be increased or decreased within the range of the elasticity of the material, the tip 341a of the outer leg 341 being in relation to the upper end of the inner leg. ,
It is elastically displaceable so as to be separated or approached in the B1 and B2 directions.

The vertically inclined wall 341 located at the widthwise outer end of the cover member 340 has a protrusion 36 projecting inward in the widthwise direction at the upper end (ceiling end) 341a.
One. The protrusion 361 functions as the engaged portion 363 engaged with the engagement recess 334 of the base member 320. Here, the wall 341 of the cover member 340 and the projection 3
61 and the base member 32
The recess 362 and the projection 361 may both be regarded as the engaged portion 363, or may be regarded as acting as the engaged portion 363 engaged with the zero projection 337.

In the example shown in FIG. 9B, the lower side or inner side of the projection 361 is inclined so as to be located lower as it goes inward in the width direction. As shown by reference numeral 361a in which the protruding portion is enlarged in (c), a lower surface protruding inward in the width direction and protruding substantially in the horizontal direction may be provided.
As shown by the imaginary line 361b, in order to facilitate disengagement, a lower side surface (engaged surface) which is inclined upward so as to be located higher inward in the width direction may be provided.
The protrusion 361 may be short as long as the cover member 340 can be locked, and its length may be, for example, about 1 mm or shorter.

When assembling, the linear cover member 34
A key-shaped engaged portion 357 having a wedge-shaped engaged protrusion 357d located inside the widthwise direction of the linear base member 320 engages with the engaging recess 331 of the engaging portion 330 on the widthwise inside of the linear base member 320,
In addition, the upper end 341a of the vertically inclined wall 341 or the upper surface of the protrusion 361 on the outer side in the width direction of the cover member 340 serves as a guide, and the inclined wall 3 of the engaging portion 335 of the base member 320 serves as a guide.
37, the cover member 3 is in contact with the inclined surface 337b.
The horizontal wall 343 of the cover member 340 is pushed upward in the direction V2, so that the wall 341 of the cover member 340 expands in the B1 direction.
The U-shaped portion 340u is elastically bent as a whole, and the guide or sliding contact portion 341a at the upper end of the vertically inclined wall portion 341 on the outer side in the width direction of the cover member 340 is engaged with the engaging portion 335 of the base member 320. Inclined surface 3 of the inclined wall portion 337
Move in the F1 direction along 37b. Inward projection 3
When the 61 moves to the outside in the width direction from the tip 337 a of the inclined wall portion 337, the protrusion 361 hits the inclined wall portion 336 of the base member 320. In this state, when the force for pushing up the cover member 340 is weakened or released, the cover member 340 is released.
The wall portions 341 of the U-shaped portion 340u
Due to the elastic force of 43, 345, 347, 349, the shape is deformed in the B2 direction and returns to the original shape. Thereby, the cover member 34
0 indicates that the projection 361 of the engaged portion 363 is
0 of the base member 3
The projection 337 of the base member 320 is engaged with the engagement portion 335 of the base member 320 so as to fit the projection 337 of the base 20. This engaging operation or operation is performed by the linear base member 320 and the linear cover member 34.
0 may be performed substantially simultaneously in the entire region in the longitudinal direction, or may be sequentially advanced from one end to the other end in the longitudinal direction.

On the other hand, in the case of removal, the reverse operation to the assembly may be performed. That is, the wall portion 343 and the like are pushed up in the V2 direction so that the wall portion 341 of the cover member 340 expands in the B1 direction, and the wall portions 341, 343, 345, 347, and
The engagement between the engaging portion 335 and the engaged portion 363 is released by elastically bending the U-shaped portion 340u made of the 349 in the B1 direction as a whole, and in this state, the wall portion of the cover member 340 is opened. 341 may be pulled downward V1. As a result, the engagement between the engagement portion 335 of the base member 320 and the engaged portion 363 of the cover member 340 is completely released. What is necessary is just to release the engagement with the engagement part 357.

When a relatively large force is required to expand the U-shaped portion 340u of the linear cover member 340 in the B1 direction, the wall portion 343 is provided near one end in the longitudinal direction of the linear cover member 340. Push up the end 3
41a along F1 along the inclined surface 336b of the inclined wall portion 336.
In the state of being extended in the direction B1, that is, in the direction B1, the tip of a suitable tool having an elongated rod-like portion or a strip-like (flake-like) portion such as a screwdriver is screwed to the tip of the inclined wall portion 337 of the engagement portion 335. By inserting the tool into the gap formed between the portion 337a and the engaged protrusion 361 of the engaged portion 363, and moving the tool to the other end along the longitudinal direction of the base member 320 and the cover member 340. , Engaging portion 335
The engagement may be completely released as if the 363 were peeled off. In the case of the protrusions 371a and 371b as shown in FIG. 9C, the release of the engagement becomes easier. Note that the engagement recess 334 of the engagement portion 335 of the base member 320 can be easily disengaged while ensuring reliable engagement even if the inner surface of the lower side wall 337 extends horizontally. As shown in FIG. 7 (c), the outer side may be inclined such that the outer side is located lower.

If desired, for example, FIG.
As shown in the enlarged view, a step 336c is formed on the inclined surface 336b of the inclined wall 336 of the cover member 320, and the wall 3
When 41 is pushed in the V2 direction to expand in the F1 direction, that is, the B1 direction, the projection 361 at the tip of the wall portion 341 is once engaged with, for example, the step portion 336c in the entire region in the longitudinal direction, and then the end wall portion 341 of the cover member 340 is moved. The engaged portion 363 of the cover member 340 may be completely disengaged from the engaging portion 335 of the base member 320 by pulling in the V1 direction. In FIG. 7D, the imaginary line 337a indicates the widthwise position of the tip end of the short inclined wall portion 337 located below the illustrated region in the enlarged view.

In any case, upon engagement, the short inclined wall portion 337 and the long inclined wall portion 336 of the base member 320 guide the engaged portion 363 of the cover member 340. Since the long inclined wall portion 336 of the member 320 guides the engaged portion 363 of the cover member 340, the engagement between the base member 320 and the cover member 340 and the release thereof can be performed by an operator alone and facing the ceiling unnaturally. It can be performed relatively easily even in a different posture.

More specifically, the linear panel structure 311
When forming and attaching the linear base member 3, first,
20 is formed in a predetermined width W1x (FIG. 2) and a predetermined length L1 according to the mounting location. Here, the predetermined width is typically a width as large as possible. By setting the width to be large, it is possible to minimize the flow of the conditioned airflow that has been diverted by the ceiling panel structure from the air conditioner 200 to flow along the ceiling surface 201.

However, for example, in FIG.
As shown in FIG. 2, the air conditioner 200
May be mounted or formed relatively close to the mounting portion of the ceiling, such as a smoke sensing device, a power distribution outlet, or a downlight.
In such a case, to avoid the obstructing part 202,
The width W3 left between the part 202 and the air conditioner 200
The linear base member 3 is adjusted to fit the width W3.
The width W1x of 20 is adjusted. Typically, W1x is W3
(W1x to W3) and smaller than W3 (W1x <W3). The strength of the ceiling surface 201, the mounting structure of the various obstructing parts 202, the convenience of the mounting work,
02 and various maintenance parts for convenience of maintenance.
Since it is practically impossible for the component 202 to be mounted on the ceiling surface 201 in a state where there is practically no gap between the air conditioner 02 and the air conditioner 200, there is usually a mounting area having a certain width. I can expect. Therefore, the base member 320
W10 from the outer end surface 333 of the main plate portion 322 of the plate portion 321 to the outermost groove 327b of the grooves 327 of the guide plate portion 326 when viewed in the width direction (FIG. 7B).
Should be set to a size (minimum possible width) in consideration of such a point. Here, W10 ≦ W1x. In FIG. 2, although the parts 202 are shown on all sides, such a thing is unusual, and usually there is only one place or at most about two places.

In order to reduce the width W1 of the linear base member 320, the guide plate portion 326 may be cut and folded at the groove 327 located at a position where the width is equal to or less than W3. When the widthwise inner edge of the guide plate portion 326 is inserted between the ceiling surface 201 and the outer frame or the decorative plate portion of the air conditioner 200, the width of the base member 320 is increased by the insertion length. You should keep it.

On the other hand, the straight base member 320 and the straight cover member 340 are cut into a predetermined length by a saw or the like in consideration of the use of the corner panel structure 312 as described later. Note that when the size of the air conditioner 200 is relatively standardized, a plurality of lengths may be prepared in advance and cut off only when the size does not match.

When mounting the linear panel structure 311, first, a screw is inserted into the screw hole H while the linear base member 320 is supported at a desired position, and the screw is screwed into the ceiling 201 to stop. Since the linear base member 320 is thin and relatively light, it can be temporarily temporarily fixed to the ceiling surface 201 only by fixing at least two places with screws. Therefore, in the third and subsequent screws, the operator has to move the straight base member 3
Since there is no need to support the screw 20, the third and subsequent screws can be easily performed even when the operator takes an unnatural posture with respect to the ceiling surface 201. In particular, the linear base member 3
The widthwise inner edge of the guide plate-shaped portion 326 of FIG.
When inserted between the air conditioner 01 and the outer frame of the air conditioner 200, it can be temporarily fixed even with one screw.

Next, the cover member 3
In a state in which the wedge-shaped engaged projection 357d of the engaged portion 357 on the upstream side (inside in the width direction) of the base member 40 is engaged, the engaging portion 335 on the downstream side (outside in the width direction) of the base member 320 is covered. The engaged portion 363 on the downstream side (outside in the width direction) of the member 340 is engaged as described above.

Next, the corner panel structure 312 of the ceiling panel structure 310 will be described with reference to FIGS. The corner panel structure 312 is shown in FIG.
As shown in FIG. 14 to FIG. 14, a corner base member 370 made of a plastic material (see FIGS. 10 to 13) and a corner cover member 390 made of a plastic material joined to the corner base member 370 (see FIGS. 10 to 11) And FIG. 14).

In the corner panel structure 312 shown in FIGS. 10 to 14, the corner base member 370 is configured to be fitted over and engaged with the longitudinal end of the linear panel structure 311 (see FIG. 10). 15 to 17), the corner base member 370 itself has a surface shape with flow guiding, resistance imparting and turning functions substantially similar to the straight panel structure 311.

That is, the corner base member 370 having a substantially square planar shape is used for the straight panel structure 31.
The upper surface 371 has right-angled two side edges 382a, 382b so as to cover the longitudinal ends 311a, 311a (see FIGS. 5, 15, and 16) of the first end 311a, 311a from below. In the linear panel structure 3
11 has a shape substantially complementary to the lower surface (see FIGS. 17 and 12). As can be seen from FIG. 12A, the wall 372 of the corner base member 370 has a practically uniform thickness of, for example, about 2 to 3 mm except for a part. Thus, the lower surface 373 of the wall 372
Also has a shape substantially similar to the surface of the linear panel structure 311, and has substantially the same guiding, resistance imparting and turning functions with respect to the conditioned air flow.

The corner base member 370 comprises a corner base body 380 and a corner base outer frame 384 integral with the body 380. The corner base body 380 typically has a substantially uniform thickness. It is made of a plate-like body having a substantially square planar shape, and one corner 381a of the square is curved in an arc shape.

The corner base main body 380 includes a diagonal line D passing through a corner 381a curved in an arc shape and an opposing corner 381b cut out in a square shape, and a plane of the main body 380 (the plane shown in FIG. 12B). ) Has a mirror-symmetrical shape with respect to a plane perpendicular to). The sides or edges 382a, 382b including the corner 381b are adjacent to the linear panel structure 3
11 overlap with the edges 311a, 311a,
The sides or edges 382c and 382d including 1a are integrally connected to the corner base outer frame 384.

The corner base body 380 is formed by a flat surface portion 37 overlapping the lower surface 328 of the guide plate portion 326 of the linear base member 320 of the linear panel structure 311.
4 u, and the resistance applying protrusion 35 of the linear cover member 340 of the linear panel structure 311.
9, a downwardly convex upstream resistance imparting projection 375 provided with a complementary concave surface portion 375u overlapping the surface of the flat cover member 340 and the surface of the flat plate portion 353 and the upstream curved guide portion 351 of the linear cover member 340. An upstream curved guide portion 376 with a complementary curved surface portion 376u that just overlaps, and a cross-sectional circle with a complementary concave surface portion 377u that just overlaps the surface of the resistance applying projection 349 of the linear cover member 340. An arc-shaped downwardly projecting resistance imparting projection 377 and a complementary curved convex surface portion 3 of the turning guide portion 347 of the linear cover member 340 which just overlaps the upstream surface 347a.
And an upstream turning guide portion 378 as a part of the concave turning guide portion provided with 78u. Each part 375,376,
377 and 378 are linearly perpendicular to the extending direction of the edges 382a and 382b from the respective edges 382a and 382b in the plan view (strictly the bottom view) of FIG. Extended portions 375a, 376a, 377a, 3
78a and 375b, 376b, 377b, 378b
And an arcuate portion 37 for smoothly connecting the linearly extending portions.
5c, 376c, 377c, and 378c.

The corner base body 380 has a rib-shaped leg 3 projecting from the back surface (upper surface) 371 so that the surface of the body portion 380 is substantially parallel to the ceiling surface 201.
83. In the example shown in FIG.
Consists of three legs 383p, 383q, 383r. Each leg 383p, 383q, 383r extends in an L-shape when viewed in the plane of FIG.
q is curved in an arc shape in a region intersecting the diagonal line D. The number of legs 383 may be more or less and may be intermittent instead of continuous.

The flat plate-shaped portion 374 of the corner base body 380 that provides the most upstream guide surface is substantially square.
A corner corresponding to the curved arc-shaped corner 381a of the main body 380 has a similar curved arc-shaped corner 374r (however, the radius of the arc is smaller) and corresponds to the notched corner 381b of the main body 380. And a notch 374c along the notch lines 374a and 374b. The flat plate portion 374 further has a square leg portion 383s protruding toward the upper surface 374u at the notch portion 374c. Square legs 383s
Are the two side edges of the square, and the notched edges 37 of the flat plate portion 374a.
4a, 374b, and the other legs 383p,
In cooperation with 383q and 383r, a leg surface or a contact plane of the corner base member 380 with respect to the ceiling surface 201 is defined.

Further, the flat plate portion 374 can be easily cut on the upper surface 374 u for size adjustment similarly to the groove 327 of the guide plate portion 326 of the linear base member 320 of the linear panel structure 311. Groove 37 for weakening
4g are provided at equal intervals, and on the lower surface 374d, protrusions 374p similar to the protrusions 327c of the guide plate 326 of the linear base member 320 are provided at equal intervals.

The corner base member 370 has an edge portion 38 overlapping the edge 311 a of the linear panel structure 311.
In portions other than the vicinity of 2a and 382b, there is provided a support wall portion 378s having an extended end (lower end) 378t that continuously extends from the end of the upstream turning guide portion 378 and supports the corner cover member 390. A notch 378f is formed between the end 378w of the support wall portion 378s and the lower end 378u of the upstream guide portion 378 of the turning guide. The notch 378f is provided in the linear panel structure 311.
When the corner base member 370 is overlaid on the downstream side, the downstream portion 347 b of the turning guide 347 and the vertical guide 345 are formed at the end 311 a of the linear panel structure 311.
Is allowed to slightly project downward (FIG. 17A).

The corner base outer frame portion 384 is connected to the main body 3 connected by the curved corner 381a when viewed on a plane parallel to the extending surface of the corner base body 380 (FIG. 12B).
The outer frame body 385 has a substantially L-shape and extends at a right angle at two side edges 382c and 382d of the 80. That is, the outer frame main body 385 includes linear portions 385b and 385a extending in parallel with the sides 382a and 382b, and an arc-shaped portion 385c between the two linear portions 385a and 385b. Each part 385a, 385 of the outer frame main body 385
b and 385c are the horizontal connecting portions 3 at the lower ends, respectively.
86 through the corresponding linear portions 386a, 386b and arc-shaped portion 386c.
Straight portions 378sa, 378 of the vertical extension wall 378s
sb and the arc-shaped portion 378sc. End surface 386at, 386bt of horizontal connecting part 386
(Not shown) are also cut out so as to be substantially flush with the end face 378w. The outer frame main body 385 is, like the vertical inclined wall 341 of the linear cover member 340 of the linear panel structure 311, positioned farther (outside) from the air conditioner 200 as it approaches the ceiling surface 201. To
It inclines slightly divergently from the lower end to the upper end, and has a wide leg 387 at the upper end. The leg 387 whose upper end abuts on the ceiling surface 201 also has a linear portion 387.
a, 387b and an arc-shaped portion 387c therebetween have an L-shaped planar shape. 384h is a screw hole for mounting the corner base member 370, 384g is a concave portion for inserting a tool such as a driver for mounting / removing a screw through the screw hole 384h, and 384s is a concave portion 38.
It is a partial cylindrical wall defining 4 g. In order to increase the degree of freedom of the mounting position of the ceiling panel structure 310 with respect to the ceiling surface 201 without considering the alignment with the support frame on the back side of the ceiling, each screw hole is formed as shown in FIG. As shown in FIG. 13, one hole is illustrated as an imaginary line, and is preferably a long hole or an oval hole 384hi. In that case, of course, the recess 384
The gi and screw mounting tool insertion recess forming wall portions 384si are also formed in an oval shape as shown by imaginary lines.

Leg 387 of corner base outer frame 384
Are linear portions 387a, 38 defining both sides of "L".
7b are connected to the linear base members 32 of the adjacent linear panel structure 311 respectively.
The edge base 380 extends to a position corresponding to the edges 382 a and 382 b of the corner base body 380 so as to engage with the zero edge 333. In addition, as shown in FIG. 17B, the free ends 387ae and 387be (not shown) of the leg 387 are connected to the end surfaces 386at and 386bt (not shown).
It may be cut off at almost the same level. Further, the main body 385 of the corner base outer frame 384 is formed by walls 341 and 347 forming two legs of the U-shaped portion 340u of the linear cover member 340 of the linear panel structure 311.
The linear portion 385 is slightly inserted into the concave portion between them.
a, 385b have thin projecting ends 385at, 385bt projecting from the free ends 385ae, 385be.
However, the thin protruding portions 385at and 385bt may hinder the ease of mounting the corner base member 370. Therefore, it is often preferable that the thin protruding portions 385at and 385bt are not provided. In order to facilitate attachment and detachment, it is preferable to minimize the length or cut out the corners diagonally as compared with those shown in an exaggerated manner. In FIG. 17A, the thin protrusion 3
In the example in the case where there is 85 at, in FIG.
An example in the case where there is no 85 at is shown. The corner base outer frame portion 384 further includes an outer surface of the main body portion 385,
Engagement recess 389 with which corner cover member 390 is engaged
(FIG. 11). In the example shown in FIG.
The engagement recesses 389a and 389b (not shown) at both ends are cutouts at the free end of the outer frame main body 385, and the middle cutouts 389c and 389d (not shown) are in the form of openings. . However, in order to facilitate attachment and detachment of the corner cover member 390, the notches 389c and 389d may be formed as shallow grooves, and further, one of the two notches or grooves may not be provided. The arrangement may be appropriately determined according to the number, and the engagement recesses 389a, 389b (not shown) at both ends may be openings having walls on the entire periphery instead of the cutouts opened at one side. Good.

As can be seen from FIGS. 14, 11 and 10, the corner cover member 390 has a substantially L-shape as a whole and has a U-shaped cross section (however, one leg of “U” is “ U) has a corner cover body 391 which is much shorter than the other leg of the "U".
A substantially L-shaped end wall portion 393 extending from one end (lower end) of the outer wall portion 392 at a substantially right angle (slight obtuse angle) with respect to the outer wall portion 392; It has a short L-shaped inner wall 394 extending from one end (inner end) of the end wall 393 at a substantially right angle to the end wall 393. More specifically, as shown in FIG. 14, the outer wall portion 392, the end wall portion 393, and the inner wall portion 394 each include:
Two straight wall portions 392a, 393a, 394a and 392b, 393b, 394b, and an arcuate curved wall portion 392 connecting them between the two straight wall portions.
c, 393c and 394c. Outer wall 392
Has an engaged projection 395 that engages with the notch 389 of the corner base member 370 on the inner edge of its upper end. In the illustrated example, the protrusions 395 are notches 389a, 389.
b (not shown), 389c, 389d, respectively, and substantially identically shaped projections 395a, 395b projecting at an acute angle to the outer wall 392 and substantially identically shaped projections projecting at substantially right angles. 395c and 395d. However, if desired, one of the protrusions 395c and 395d may not be provided to facilitate removal of the corner cover member 390, and the inner protrusions 395c and 395d may be omitted.
d may be in the form of a curved projection 395f that forms an obtuse angle with respect to the outer wall 392, as shown in FIG.

The end wall 393 of the corner cover main body 391
On the inner surface, a thin side wall 396 extends in an L-shape at a substantially constant interval with respect to the inner wall portion 394. 39
6r is a rib for supporting the side wall 396. The side wall 39
6 ends before the area where the corner cover main body 394 covers the adjacent linear panel structure 311. The inner side wall 396 may not be provided. When the corner cover member 390 is put on the corner base member 370, the end wall 393 of the corner cover main body portion 391 is connected to the lower end 37 of the extension wall portion 378s of the corner base member 370.
8t.

The L-shaped inner wall 394 of the corner cover main body 391 has a band-shaped edge 394u which is bent outward (inside of U) at the upper part of the wall 394. When the corner cover member 390 is covered by the corner base member 370, the band-shaped edge portion 394u is formed by the corner base member 3
Extension wall 3 extending from the lower end of curved turning wall 378
It faces the gap 78 through a narrow gap and functions as a downstream portion of the turning guide. Note that the L-shaped band-shaped edge portion 394u has protruding wall portions 394ut,
394 ut. Projecting wall portion 394 of inner wall portion 394
ut and 394out are the corner base member 370 in the state where it is covered on the adjacent end 311a of the linear panel structure 311. When the corner cover member 390 is further covered with the corner base member 370, the adjacent end 311a of the linear panel structure 311 It engages with the downstream portion 347b of the turning guide 347 exposed from the notch 378f of the corner base member 370. However, the projection wall portion 394ut may not be provided,
FIG. 17A shows an example in which the wall portion 394ut is provided.
An example without 4ut is shown in (b).

After the adjacent linear panel structures 311 and 311 are attached to predetermined positions with a predetermined length and a predetermined width, the corner panel structures 312 are formed.
11 and 311. That is,
First, linear panel structures 311 and 111, which extend at right angles to each other,
A corner base member 370 is mounted on adjacent ends 311a, 311a of 311 so as to overlap at edges 382a, 382b. At this time, the edges 382a and 382b of the corner base member 370 and the adjacent ends 311a and 311a of the linear panel structures 311 and 311 respectively.
The length of the overlapping portion with the end 378w cut off by the notch 378f or the end of the leg 383 and the corresponding edge 382a, 38
2b. In other words, it is sufficient if there is at least a minimum polymerization and the polymerization is equal to or less than LE, and the length LE is the maximum allowable error (strictly, 1/2) of the length of the linear panel structure 311. become. When the corner base member 370 is overlaid on the linear panel structure 311 from below, the corner base member 370 becomes the wall portions 374, 375, 376,
377, 378 are complementary shaped walls 326, 357, 351 and 353, 349 of the linear panel structure 311;
The legs 383 abut against the ceiling surface 201, respectively, and the legs 387 of the outer frame 384 engage with the ends 333 of the linear panel structure 311 (see FIG. 17).
Here, when there are the thin plate-shaped protrusions 385at and 385bt, for example, the diagonal line D of the corner cover member 370 is used.
The outer corner portion 381a is inclined closer to the ceiling surface 201 than the inner corner portion 381b in the direction, and the leg portions 387, 387 of the outer frame portion 384 are fitted while the thin plate-shaped protrusions 385at, 385bt are fitted from the outside in the diagonal direction D. The above-mentioned superposition is performed by engaging the adjacent end portions 311a and 311a of the linear panel structures 311 and 311 and then bringing the inner corner 381b close to the ceiling surface 201. Next, as described above, the corner cover member 390 is connected to the corner cover member 3.
70, the engaged projection 395 of the corner cover member 390 is engaged with the engagement recess 389 of the corner base member 370.
To be engaged.

A description will be given of how the ceiling panel structure 310 constructed as described above is attached to the ceiling surface 201.

First, the ceiling surface 2 around the air conditioner 200
At 01, it is checked whether there is an obstacle 202.
For example, assume that there is an obstacle 202a at a position G in FIG. 2 as shown in FIG. According to the distance W3 from the adjacent side edge of the air conditioner 200 to the outer edge of the obstacle 202a,
The linear panel structure 311R to be disposed on the right side (hereinafter, the related members and elements disposed on the right side are denoted by the suffix R) so that the width W1x is W1x ≦ W3. The width of the linear base member 320R constituting the 311R is adjusted (FIG. 4). For this adjustment, the guide plate 32 of the linear base member 320R is
The linear base member 320R is cut along a groove at an appropriate position among the grooves 327 formed in a large number in 6R. This cutting can be easily performed by making a cut with a cutter or the like along the groove 327 and bending the cut along the cut. In this example, as shown in FIG. 4, the obstacle 202a is sufficiently far away and the linear base member 20R
Is the outermost groove 327a to have a standard maximum width.
(FIG. 6 etc.) or used (applied) without being cut. It is assumed that there is no other obstacle 202 on the ceiling surface 201 around the air conditioner 200. If there is an obstacle 202 at another position, the width of the linear base member 320 of the linear panel structure 311 arranged at the corresponding position is adjusted using the groove 327 according to the position. do it.

Next, the linear panel structure 311R, 31
Adjust the length of 1L, 311U, 311D. That is, each linear panel structure 311R, 311L, 311
U, 311D is cut to the length of the side edge of each of the air conditioners 200 to be juxtaposed. When a part of the widthwise inner end of the linear panel structure 311 (for example, 311U or 311D) is inserted between the side wall (decorative board or the like) of the air conditioner 200 and the ceiling surface, the corner panel structure is used. Body 3
12 (for example, 312 RU and 312 RD) are also shifted in the vertical direction in FIG.
1 (for example, 311U or 311D) according to the insertion length of the inner end in the width direction.
The length of 1R) may be appropriately adjusted. The size of the linear panel structure 311 and the size of the corner panel structure 312 may be similarly adjusted for other portions. However, in this example, the standard width and the width direction end are not inserted between the air conditioner and the ceiling surface, so that the notch along the groove is unnecessary.

Next, the four linear panel structures 311 are attached to the ceiling surface 201 at predetermined positions according to the width and length, and the corner panel structures 312 are further attached to the edges 311a of the linear panel structures 311. What is necessary is just to overlap and attach it to a predetermined corner. Here, each linear panel structure 311
At the time of mounting, each linear base member 320 is temporarily fixed to the long hole with a small number (for example, about two to three) of screws on the ceiling surface 201, and then the linear cover member 340 is engaged with the pair of engaged members. The parts are attached as described above such that the parts are engaged with the pair of engaging parts of the linear base member 320. Further, the corner base member 370 of the corner panel structure 312
To four linear panel structures 311R, 311L, 31
Of the 1D and 311U, they are temporarily fixed to the ceiling surface 201 with screws or the like while covering the edges of the adjacent linear panel structure. In this way, with the four corner base members 370 temporarily fixed, the overall arrangement is checked from the floor.

For example, when the position of the linear panel structure 311 in the longitudinal direction is not appropriate, the corner base members 312 at both ends which are overlapped with the linear panel structure 311 and temporarily fixed are removed, and then the linear panel structure 311 is removed. Structure 311
The linear cover member 340 is removed from the linear base member 320. At this time, the U-shaped portion 340u of the linear cover member 340 is pressed against the ceiling surface 201, and the engaged protrusion 3
The leg portion 341 of the “U” with 61 may be expanded along the inclined surface 336b and removed as described above. In addition, since both the linear cover member 340 and the linear base member 320 have a shape formed by extrusion molding (a shape having a constant cross section), the linear cover member 340 is pulled out (pushed) along the longitudinal direction. Thus, the engagement may be released. Next, the screws are loosened to shift the temporary fixing position of the linear base member 320, and the linear cover member 340 and the corner base member 370 are again overlapped and temporarily fixed. In addition, in the state where the corner base member 370 is detached or with some corner base members 370 temporarily fixed, the longitudinal direction end of the temporarily fixed linear panel structure 311 is hit with a hammer or the like, so that the long hole is formed. The position of the linear panel structure temporarily fixed by screws may be adjusted. When the width, length and mounting position of each linear panel structure 311 are determined in this way, the linear cover member 340 is removed again, and each linear base member 320 is removed.
Is fixed to the ceiling surface 201 at a predetermined number of positions, and the corresponding linear cover members 340 are engaged with and fixed to the linear base members 320, and the four linear panel structures 311 are mounted. Complete. Next, if necessary, the corner base member 370 adjusted to a predetermined size is fixed to the ceiling surface 201 by overlapping the adjacent end portions of the linear panel structures 311 and 311. Finally, the corner cover member 3 is attached to the four corner base members 370.
90 to complete the corner panel structure 312, thereby making the ceiling panel structure 3
10 is completed. When viewed in a perspective view, the assembled state looks as shown in FIG. 3, for example.

As described above, the ceiling panel structure 310
Is not necessarily an ideal plane, and undulates somewhat from the plane. When the size of the air conditioner 200 is large and the length of the linear panel structure 311 is about 2 m, such vertical undulation of the ceiling surface 201 is difficult to ignore. That is, even when the linear base member 320 is attached to the undulating ceiling surface 201, most of the linear base member 320 is formed of a flat plate portion, and the protruding length of the portion protruding from the flat plate portion is relatively short and the width thereof Is relatively thin, and the protruding portion extends over the entire length of the linear base member 320.
It is relatively easy to bend in the 1 and Q2 directions. Therefore, even when the ceiling surface 201 has undulation along the longitudinal direction of the linear base member 320, the linear base member 320 can be attached so as to substantially follow the undulation of the ceiling surface 201.

Next, when engaging and fixing the linear cover member 340 to the linear base member 320 undulating along the longitudinal direction, the linear cover member 340 faces inward along the plane 328 of the guide plate portion 326. A linear cover member 340 whose tip is tapered outward in a wedge-like shape with respect to the engagement recess 331 of the linear base member 320 which is greatly opened.
First, the engaged projection 357d is fitted. At this time, by pushing (pulling) the engaged projection 357d outward in the width direction along the plane 328 of the guide plate-shaped portion 326 of the linear base member 320, the linear base member 320 undulates to some extent. Also has a tapered engaged projection 357d.
Can be securely fitted into the engagement recess 331 that is largely opened. The engaged projection 35 of the linear cover member 340
7d and the protruding wall portion 332 of the engaging concave portion 331 of the linear base member 320 both extend continuously along the longitudinal direction. With the progress of the engagement of the engaging portion adjacent to the concave portion (the fitting length of the protrusion becomes deeper with respect to the concave portion), the portion of the engaged portion 357 of the linear cover member 340 also slightly extends in the longitudinal direction. It is deformed so as to undulate in the Q1 and Q2 directions (see FIG. 8), and the fitting can be started and progressed at that location as well. Here, although the engaged portion 357 of the linear cover member 340 is less likely to undulate in the longitudinal direction as compared with a simple flat plate, the protruding length in the direction perpendicular to the substantially flat plate portions 353 and 351 is as follows. Since it is relatively small, some undulation may occur to some extent. In addition,
When the engaging concave portion 331 is opened so as to become larger toward the inner side in the width direction, the engaged projection 357d does not have to be tapered or wedge-shaped. The concave portion 331 may be opened in a constant size in the width direction.

The engaged projection 35 with respect to the engagement recess 331
When the engagement of 7d is completed, the linear base member 32
The engagement protrusion 361 on the outer side in the width direction of the linear cover member 340 is engaged with the engagement recess 334 on the outer side in the width direction of zero. At this time, the protrusion 361 with respect to the engagement recess 334
In the vertical position, there is actually a degree of freedom corresponding to the height corresponding to the length of the upper inclined surface 336b. In addition, the displacement of the engaged protrusion 361 in the width direction due to the displacement of the vertical direction is reduced by the linear cover member 3.
The 40 U-shaped portions 340u can be absorbed as bending in the B1 and B2 directions.

Therefore, even if the ceiling surface 201 has undulation, the linear base member 320 and the linear cover member 34
0 means that the straight panel structure 311 is securely engaged.
Can be assembled. The corner panel structure 312
In the range of about the size of, the swell of the ceiling surface 201 can be practically ignored.

Next, the operation of the ceiling panel structure 210 when the air conditioner 200 operates will be described with reference to FIGS.

As shown in FIG. 4, an air conditioner 200 having a substantially rectangular (square) shape along the ceiling surface 201 has an indoor air inlet 210 in the center of the rectangle and an air conditioner near four sides or four side edges. It has an air outlet 211. That is, FIG.
As shown in FIG. 8, the air conditioner 200
The air inside the chamber 207 is sucked in the K1 direction from the center indoor air inlet 210 by the motor-driven fan 212 located inside, and the room air is positioned between the central pipe 205 and the outer outlet pipe 206. The heat medium flowing in the K2 direction toward the generally cylindrical indoor heat exchanger 213 and flowing through the heat transfer tubes of the heat exchanger 213 when passing between the heat transfer tubes and the heat transfer fins of the heat exchanger 213 After heating (in the case of heating) or cooling (in the case of cooling) the room air, the decorative board or peripheral wall or side wall 214 or the wind direction adjusting plate 215 having a desired shape is provided at the air-conditioning air outlet 211 at the outlet of the outlet duct 206. The direction of the wind is adjusted by, for example, the air outlet 211, and the conditioned air is blown from the outlet 211 in a direction K3 substantially parallel to the ceiling surface 201 and slightly downward toward the outside. The heat exchanger 213
A filter is provided at the entrance of an air flow passing through the filter to remove dirt (particles and the like) from room air to some extent.

The uppermost layer of the air-conditioning airflow blown outward and slightly downward from the air-conditioning air outlet 211 in the K3 direction is the linear base of the linear panel structure 311 of the ceiling panel structure 310. It flows substantially parallel to the ceiling surface 201 along the guide flat portion 326 of the member 20. This flow then impinges on the resistance-providing projection 359 of the linear cover member 340 to suppress the wind pressure, reduce the flow velocity, and flow while spreading along the surface of the projection 359. The air-conditioning airflow that has passed the resistance applying protrusion 359 flows along the guide 351 having the guide surface slightly curved downwardly of the linear cover member 340, and then hits the resistance applying protrusion 349, and becomes larger. The wind pressure is suppressed and the speed is reduced. The resistance imparting projection 3 gradually expands with deceleration.
The air-conditioning airflow exceeding 49 then turns and turns sharply and protrudes downward (drops largely).
In step 7, the flow S is turned by about 90 degrees or more from the initial flow direction when it is largely turned and exits from the outlet.
Becomes 1. Therefore, even if a part of the flow exceeds the lower end 343, it actually flows obliquely downward.

The change in the flow velocity and direction of the air-conditioning air flow as described above is mainly caused by the linear panel structure 311.
This is a typical phenomenon that occurs in the flow near the surface of the linear panel structure 311. Although the flow away from the surface of the linear panel structure 311 is less directly affected by the change in the surface shape of the linear panel structure 311, The above-described changes occurring in the air-conditioning airflow positioned adjacent to the panel structure 311 side affect the flow in the lower layer to some extent, and similarly, the airflow is decelerated and expanded and directed downward. Is formed.

On the other hand, in the central part of the air conditioner 200, since the room air is always sucked in the K1 direction from the suction port 210, a part of the air flow for air conditioning turned downward is
In, a circulating flow as shown in S3 is provided. When the circulation flow S3 becomes excessive, the efficiency of air conditioning of the air conditioner 200 is greatly reduced as a so-called short circuit or shortcut, but only a small part of the air-conditioning air flow is used as the circulation flow S3 for suction in the K1 direction. Mixing with the indoor airflow S4 may be allowed.

On the other hand, the formation of such a circulating flow S3, in combination with the above-described turning flows S1, S2, etc., allows most of the conditioned air flow to spread in the room in a desired form as shown in flow S5 in FIG. Will help you go.

As a result, the air-conditioned air flow is applied to the lowermost end 343 of the linear cover member 340 of the linear panel structure 311.
Over the ceiling surface 201a on the outside thereof can be suppressed to a minimum. Therefore, the ceiling surface 201
Can minimize the risk of being contaminated by particulates such as solids or liquids contained in the conditioned airflow.

In the above, the linear panel structure 31
Although one role has been described, the corner panel structure 312 also functions in the same manner as the linear panel structure 311 because the corner panel structure 312 has a cross-sectional shape, outer shape, or contour substantially similar to that of the linear panel structure 311. In particular, when there are outlets 211 on four sides as in this example, there is a gap in the corner panel structure 312 between the two adjacent linear panel structures 311 and 311 without the corner panel structure 312. Assuming that, the linear panel structure 31
In addition to the possibility that a part of the conditioned air flow which has been expanded due to the resistance due to 1 may flow from the vicinity of both ends of the linear panel structure 311 to the gap lacking the corner panel structure 312, such a flow may occur. Once formed, the flow through the gaps may be even stronger, but since the corner panel structure 312 eliminates such gaps, the closed quadrilateral ceiling panel structure 310 is generally As a result, the air-conditioning airflow toward the ceiling surface 201 can be minimized.

However, for example, in the case of an air conditioner in which the outlet is limited to, for example, only two parallel sides or one side of a quadrilateral, only the outlet facing the outlet, preferably the outlet The linear panel structure may be mounted over a range sufficiently longer than the length of the linear panel structure. However, if desired,
Even in this case, even if the corner panel structure is attached to one or both ends of the linear panel structure, in some cases,
In order to eliminate the gap as described above, a closed quadrangular ceiling panel structure may be used regardless of the number of outlets.

When the linear panel structure is used alone, end caps 450 as shown in FIG. 19 are put on both ends of the linear panel structure 311. Note that the end cap 450 shown in FIG.
One end of 1 (left end when viewed downstream in the direction of wind flow)
Of the end cap 45 shown in FIG.
Since it has a mirror-symmetric shape with respect to 0, the description is omitted here.

The end cap 450 has an end wall 470 and walls and projections protruding from the inner surface of the end wall 470.
It has a shape that fits over the end 311a of the linear panel structure 311 (see FIG. 5A). That is, each lower wall portion 451, 452, 452 of the end cap 450
453, 454 are walls 374, 375a, 376 of the corner base member 320 of the corner panel structure 312.
a, 377a have substantially the same shape. The lower wall portions 455, 456, 457, 458, and 459 are formed by the wall portions 347, 345, and 34 of the linear panel structure 311.
It has an inner surface complementary in shape to the outer surface of 3,341,333. Further, between the wall portions 458 and 459, a concave wall portion 4 is provided.
58a is formed, and the inwardly convex inner surface of the concave wall portion 458a is formed by a slope portion near the distal end portion 341 of the linear cover member 340 of the linear panel structure 311 and a slope portion 336b of the linear base member 320. It contacts the formed concave portion (for example, see FIG. 5B for the shape of the linear panel structure 311). On the inner surface of the wall portion 451, grooves 451g are formed at regular intervals so that the length in the width direction can be adjusted according to the width adjustment of the linear panel structure 311.
The upper protrusion 460 engages with the recess 327 c on the upper surface of the linear panel structure 311. The width of the projection 460 is smaller than the width of the recess 327c so that even if the cut end of the linear panel structure 311 is slightly displaced from the direction perpendicular to the longitudinal direction, the cut end may extend along this end to some extent. Is slightly smaller and is tapered so that the length of the protrusion 460 is relatively long and tapered. The slight difference between the length of the base member 320 and the length of the cover member 340 of the linear panel structure 311 is also different from that of the wall 451 of the end cap 450.
~ 459. In this example, there are three upper protrusions 460, but the number of protrusions 460 may be more or less. The end wall 470 further includes
Of the concave portions in the U-shaped portion 340u of the linear cover member 340 of the linear panel structure 311, the partial cylindrical wall portion 3 is formed.
The cylindrical projection 461 and the wall 34 that fit into the recess inside the 49.
5, 343 and 341 are rectangular cylindrical cross-section projections 46 which fit into lower recesses defined by the lower end vicinity portions of the projections 46.
2, and a projection 463 having a triangular cylindrical cross section that fits into a triangular space or gap defined by the wall portion 336 and the main plate portion 322 of the linear base member 320.

The end cap 450 and the other end-side end cap that is mirror-symmetrical to the end cap 450 are provided with a linear panel structure 311.
After being attached to the ceiling surface 201 at a predetermined position, the linear panel structure 311 is placed on both ends of the linear panel structure 311 in a state where the size is adjusted to fit the width of the panel structure 311 and A device may be formed. The lower wall portion 451 of the end cap 450 is cut off at the tip 451a, and a narrow portion of the end wall portion 470 upstream of the tip 451a is formed between the outer frame (decorative board or the like) of the air conditioner 200 and the ceiling surface. It can be inserted in between. When the projection 327e (the imaginary line in FIG. 6 or the like) is formed on the surface 328 of the base member 320 of the linear panel structure 311, the notch end 451a typically abuts the downstream side surface of the projection 327e. In addition, in order to suppress the airflow flowing out of the end cap in the direction along the longitudinal direction of the linear panel structure 311,
If desired, the walls 451 to 456 may be curved such that the closer to the end wall 470 is, the more upstream the side is, as is the corresponding wall of the corner base member 370.

In the above, the ceiling panel structure 310
That is, 311 and 312 are located at the center at the indoor air intake port 21.
The description has been made on the premise that the air conditioner 200 is mounted on the ceiling 201 on the downstream side of the air outlet 211 of the ceiling-embedded air conditioner 200 provided with the air conditioning air outlet 211 at the peripheral portion. However, the ceiling panel structure 31 as described above
In other words, the ceiling panel structure 310 has only an air-conditioned air outlet 211 instead of the embedded ceiling air conditioner 200 (the air-conditioning air inlet is not provided at the ceiling surface 201). The present invention is also effective when mounted (embedded) on the ceiling surface downstream of the conditioned air outlet 211 of the conditioned air blowing device, except that a part of the conditioned air is returned to the inlet 210. In order to suppress the dirt on the ceiling surface, the ceiling panel structure is an air-conditioned air blower with a ceiling-mounted type or a buried ceiling type and an opening at the ceiling surface with an opening at the ceiling surface. Air-conditioning duct). A typical example of such an air-conditioned air blowing device includes a plurality of concentric (concentric annular) air outlets known as anemo. In the case of such a circular outer periphery, if desired, another guide plate or the like is added so as to cover the ceiling surface between the inner edge of the rectangular ceiling panel structure and the circular air-conditioned air blowing device. Is also good.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing that a ceiling panel structure is attached according to the shape of an air conditioner. FIG. FIG. 7B is a bottom view of a ceiling panel structure according to a preferred embodiment of the present invention used in the air conditioner of FIG. 7A, and FIG. 7C is a ceiling according to the plane (bottom) shape of the air conditioner. Explanatory drawing which showed that the shape of a panel structure was adjusted, (d), (e) and (f) are bottom explanatory diagrams of the example of the air conditioner of various shapes and types to which a ceiling panel structure is applied.

FIG. 2 is an explanatory bottom view showing that the shape and size of the ceiling panel structure are adjusted in accordance with obstacles or obstructing parts on the ceiling.

FIG. 3 is a perspective explanatory view of a ceiling panel structure according to a preferred embodiment of the present invention as viewed obliquely from below.

4A and 4B show a ceiling panel structure according to a preferred embodiment of the present invention, wherein FIG.
(B) is an explanatory side view in the direction of the arrow IVB in (a).

FIGS. 5A and 5B show a linear panel structure used in the ceiling panel structure of FIG. 4, wherein FIG.
(B) is an explanatory view of a cross section taken along line VB-VB in (a).

FIG. 6 is an explanatory perspective view of a linear base member used in the linear panel structure of FIG. 5;

7A and 7B show a linear base member, and FIG.
Is a bottom view explanatory view, (b) is a sectional explanatory view taken along the line VIIB-VIIB of (a), (c) is a sectional explanatory view of a modification example of the engaging recess on the outer side in the width direction, and (d) is a part of the inclined surface portion. Sectional explanatory drawing of a modification.

8 is an explanatory perspective view of a linear cover member used in the linear panel structure of FIG. 5;

FIG. 9 shows the linear cover member of FIG. 8;
(A) is a bottom view, (b) is IXB-IXB of (a)
(C) is a cross-sectional explanatory view of a modified example of the engaged protrusion on the outer side in the width direction.

FIGS. 10A and 10B show a corner panel structure used in the ceiling panel structure of FIG. 4, wherein FIG. 10A is a side view of FIG. Arrow XB
The bottom view explanatory drawing seen in the direction.

11A and 11B show a corner base member and a corner cover member used in the corner panel structure of FIG. 10, wherein FIG. 11A is a perspective explanatory view of a corner base member,
(B) is an explanatory perspective view of the corner cover member.

12A and 12B show the corner base member of FIG. 11, wherein FIG. 12A is a side view of the corner base member viewed in the direction of arrow XIIA of FIG. 11B, and FIG. 12B is a bottom view of the corner base member viewed in the direction of arrow XIIB of FIG. FIG. 4C is a side view as viewed in the direction of the arrow XIIC in FIG.

FIG. 13 is an upper surface (back surface) of the corner base member of FIG. 11;
FIG.

14A and 14B show a corner cover member used in the corner panel structure shown in FIG. 10, wherein FIG. 14A is a side view of the corner panel viewed in the direction of arrow XIVA of FIG. FIG. 8 is an explanatory bottom view as seen in the XIVB direction, and FIG. 8C is an explanatory view of a modification of the engaged projection.

FIG. 15 is an oblique view of the ceiling panel structure of FIG. 4 for explaining the mounting of the corner cover member;
FIG.

FIG. 16 is an explanatory bottom view of the state where the corner base member of FIG. 11 is attached.

17A and 17B show a state in which a linear panel structure and a corner panel structure overlap each other, and FIG.
VIIA-XVIIA cross-sectional explanatory view (however, the linear panel structure 311D is not shown), (b) is (a)
Sectional explanatory drawing similar to (a) about the modification of (a).

FIG. 18 is a schematic cross-sectional explanatory diagram for explaining a flow adjustment state of an air-conditioned air flow by a ceiling panel structure according to a preferred embodiment of the present invention.

FIG. 19: When the linear panel structure is used alone,
FIG. 4A is an end view showing an end cap attached to an end of the linear panel structure to form a linear panel structure device. FIG. 5A is a plan view (top view), and FIG. , (C) is a bottom view, (d) is a right side view,
(E) is a rear view, and (f) is a left side view.

[Explanation of symbols]

Reference Signs List 200 Air conditioner 201 Ceiling surface 202, 202a Obstacle (obstruction part) 210 Indoor air inlet 211 Air-conditioned air outlet 310 Ceiling panel structure 311, 311D, 311L, 311R, 311U Linear panel structure 312, 312LD, 312LU , 312RD, 312
RU corner panel structure 320 linear base member 321 plate portion 322 main plate portion 326 guide plate portion 327 groove (weakened portion) 330, 335 engaging portion 331, 334 engaging concave portion 336, 337 sidewall 336b, 337b inclined surface 357, 363 Engaged part 357d, 361 Engaged projection 340 Linear cover member 341a Guide part 347 Turning guide part (turning guide part) 349 Resistance applying projection part 351 Curved guide part 370 Corner base member 390 Corner cover member 450 End Part cap K1, K2, K3 Flow direction L1 Length S1, S2, S3 Air flow W1, W2, W3 Width

Claims (16)

[Claims] 1. An air conditioner configured to be mounted on a ceiling downstream of an outlet of an embedded ceiling air conditioner having an indoor air inlet at a central portion and an outlet for conditioned air at a peripheral portion. A ceiling panel structure provided with a turning guide portion which is substantially rigid with respect to the air flow so as to turn the conditioned air flow blown out from an air outlet of the device away from the ceiling, Is a base structure having an engaging portion on the side opposite to the side facing the ceiling, the base structure extending along the side edge of the air conditioner. A cover structure including a linear base member attachable on one main surface, and a cover structure configured to be engaged with an engagement portion of the base structure by an engaged portion and fixed to the base structure And blows out from the outlet of the air conditioner. Including a linear cover member engaged with the linear base member with a turning guide substantially rigid with respect to the air flow to divert the conditioned air flow away from the ceiling, The engaging portion of the linear base member includes a pair of engaging concave portions that are opened at a position separated in the width direction of the linear base member and on a side opposite to a side facing each other. The side wall closer to the surface has an inclined surface inclined so as to be closer to the ceiling surface as being farther from the other concave portion, and the engaged portion of the linear cover member is a pair of engaging concave portions of the linear base member. A pair of engaged projections that engage with the linear cover member at positions separated in the width direction of the linear cover member so as to be elastically close to and separated from each other on the side facing each other. It has a movable guide along the slope of the wall near the ceiling surface of the recess. Ceiling panel structure. 2. The linear cover member has a substantially U-shaped cross-sectional shape, and the projection that engages with one of the pair of engaged projections in one recess of the linear base member is “ The ceiling panel structure according to claim 1, wherein the ceiling panel structure is formed on one leg of the "U", and the turning guide is formed on the other leg of the "U". 3. The side wall of the straight base member forming the one concave portion, the side wall farthest from the ceiling surface being on the opposite side to the side facing the ceiling surface, being more distant from the other concave portion being closer to the ceiling surface. The ceiling panel structure according to claim 2, wherein the ceiling panel structure is inclined so as to approach. 4. Each of the pair of engaging recesses of the linear base member extends continuously along the extending direction of the base member over substantially the entire length in the extending direction.
The ceiling panel structure according to any one of the above items. 5. The ceiling panel structure according to claim 1, wherein the one concave portion is a concave portion of the pair of concave portions that is farther from the air outlet of the air conditioner. 6. An air conditioner in which a linear base member is substantially parallel to the one main surface at a widthwise end near the side edge with the air outlet of the air conditioner on a side opposite to the one main surface. An air flow guide surface, and the other engagement portion at a position farther from the side edge of the air conditioner than the guide surface in the width direction, wherein a linear cover member has a straight line at its width direction inner end. A portion of the other engaged portion that engages with the other engaging portion of the shape-like base member, and a portion of the other engaged portion that faces the air outlet of the air conditioner is a linear base member. 6. The ceiling panel structure according to claim 5, wherein the ceiling panel structure is a resistance-imparting projection that acts as a resistance to reduce the flow velocity of the conditioned air flow flowing along the guide surface. 7. The ceiling panel structure according to claim 6, wherein the linear cover member has a plate-like portion extending substantially parallel to the ceiling surface in the vicinity of the other engaged portion. 8. The ceiling panel structure according to claim 1, wherein the linear base member and the linear cover member are formed by extruding a plastic material. 9. The linear base member of the linear panel structure is adjustable in length and width, and the linear base member is adjustable in length. A ceiling panel structure according to one item. 10. A corner base member which can be attached to a ceiling surface with one main surface at a position adjacent to an end of the linear base member so that the base structure is located outside a corner of the air conditioner. 10. The ceiling according to any one of the preceding claims, wherein the cover structure includes a corner cover member engaged with a corner base member adjacent an end of the linear cover member. Panel structure. 11. The ceiling panel structure according to claim 10, wherein the corner base member is configured to cover and engage the ends of the linear base member and the linear cover member. 12. The corner base member has a part of a turning guide that is substantially rigid with respect to the air flow so as to turn the conditioned air flow blown out from the air outlet of the air conditioner away from the ceiling. And the corner cover member has a substantially U-shaped cross section,
The inwardly engaged portion of one leg of "U" is engaged with the outwardly engaging portion of the outer wall of the corner base member, and the turning guide portion of the corner base member is formed on the inner surface of the bottom of "U". The ceiling panel structure according to claim 10, which is in contact with an extending end of the ceiling panel structure. 13. The corner base member according to claim 12, wherein a resistance imparting projection serving as a resistance for reducing the flow velocity of the conditioned air flow flowing along the surface of the corner base member is provided upstream of the turning guide. Ceiling panel structure. 14. In a state where the engaging portion of the linear base member and the engaged portion of the linear cover member are engaged with each other,
The ceiling panel structure according to any one of claims 1 to 9, further comprising an end cap that covers at least one of the longitudinal ends of the linear base structure and the linear cover structure. 15. An air conditioner configured to be mounted on a ceiling downstream of an air outlet of a ceiling-embedded air conditioner having an indoor air inlet at a center portion and an air outlet for conditioned air at a peripheral portion. A ceiling panel structure provided with a turning guide portion that is substantially rigid with respect to the air flow so as to turn the conditioned air flow blown out from an air outlet of the device away from the ceiling, wherein the straight line of the air conditioner is provided. A base member that can be attached to the ceiling surface on one main surface so as to extend along each of the side edges, and is adjustable in length and width in the extending direction, and is opposite to the one main surface. A cover member having an engaging portion on the side thereof, and a cover member which is configured to be engaged with the engaging portion of the base member by an engaged portion and fixed to the base member and has an adjustable length. The air-conditioning airflow blown out of the air conditioner outlet from the ceiling A turning guide portion that is substantially rigid with respect to the air flow so as to be turned in the direction, wherein the engaging portion of the linear base member is separated in the width direction of the linear base member. And a pair of engaging recesses that open on the opposite side to the side facing each other and extend in the extending direction of the linear base member. As the distance increases, the engagement portion of the linear cover member is inclined so as to be closer to the ceiling surface, and the pair of engagement protrusions that engage with the pair of engagement recesses of the linear base member is formed by the linear engagement member. At a location separated in the width direction of the cover member, the guide portion is provided so as to face each other, and the engaged projection portion is movable along an inclined surface of a wall portion on a side near a ceiling surface of the one concave portion. And a straight panel structure located between adjacent ends of the linear panel structure. A ceiling panel structure comprising a corner panel structure engaged with an adjacent end of a linear panel structure. 16. The ceiling panel structure according to any one of claims 1 to 15, wherein the ceiling panel structure includes only an air-conditioned air outlet instead of the ceiling-mounted air conditioner. A ceiling panel structure configured to be attached to a ceiling downstream of an air-conditioned air outlet of the air-conditioned air blowing device.