JP2006328740A - Ceiling panel structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling panel structure which is good in appearance in order to pay attention to the design of a ceiling surface of a prefabricated room or the like, and can prevent fall or lifting of a cover for blocking a ceiling inspection port. <P>SOLUTION: The ceiling panel structure is provided with the ceiling inspection port 1 and the inspection port cover 2 which is engagingly held in the ceiling inspection port 1 via an engaging fitting 4. In the ceiling panel structure, an erect piece 1a which has a folding portion 1b folded back from an upper edge in an external downward direction, is formed along the entire peripheral edge of the ceiling inspection port 1. On the other hand the cover 2 has an engaging piece 2c formed along the entire peripheral edge thereof, which is formed of a rise portion 2a and a flange portion 2b serially extended outward from an upper edge of the rise portion 2a. The engaging fitting 4 is formed of a mounting portion 4a which is mounted on the flange portion 2b of the cover 2, and an engaging portion 4b which is serially extended from one edge of the mounting portion 4a and engageable with the folding portion 1b when the flange portion 2b is mounted on an upper edge 1c of the erect piece 1a. Further the ceiling panel structure has a packing P interposed between the ceiling panel 3 and the cover 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ceiling panel structure in which a ceiling inspection port is provided in a ceiling panel of a unit room or the like, and more specifically, a ceiling inspection port, and a cover for an inspection port that is locked and held by the ceiling inspection port via a locking tool. The ceiling panel structure provided with

Conventionally, a ceiling inspection port has been provided on the ceiling panel of a unit room such as a bathroom in order to perform maintenance of electrical wiring and ventilation equipment on the back of the ceiling. There is known one in which a cover is placed so as to cover an inspection port.
The ceiling inspection port is normally closed by the cover, and when maintenance is performed, the ceiling inspection port is generally opened by lifting and shifting the cover from the unit room.
However, in the structure where only the cover is placed as described above, it is very easy to open and close the ceiling inspection port, so it can be dropped during cleaning, etc. There is a disadvantage that the cover is lifted by the wind pressure generated by opening and closing the door.
In Patent Document 1 below, in order to prevent the cover lid from falling or floating as described above, it is locked to the edge of the ceiling inspection port by a rotary fixing tool (rotary locking tool), and the inspection lid (covering cover) The structure which fixes to a ceiling inspection port is disclosed.
JP-A-8-184242

FIG. 3 is a view showing a structure in which a cover is fixed to a ceiling inspection port by a disk-like rotary locking device as in Patent Document 1 as a conventional example, and FIG. FIG. 3B shows a state before the cover is fixed to the ceiling inspection port, and a state where the cover is fixed by a rotary fixing tool.
On the periphery of the cover lid 200, a locking piece 200 c including an upright portion 200 a and a flange portion 200 b that is coupled outward from the upper end of the upright portion 200 a is formed over the entire periphery of the cover lid 200. A packing material P ′ is attached to the outer peripheral surface of the flange portion 200b and the outer surface of the upright portion 200a, and the packing material P ′ is an upright formed over the entire periphery of the ceiling inspection port 100. A seal lip portion Pa that is elastically contacted to the inner surface of the piece 100a is provided.
A locking tool insertion hole 200d is provided in the vicinity of the peripheral edge of the cover 200, and a shaft body 300a erected at an eccentric position of the locking tool 300 is inserted into the locking tool insertion hole 200d so that the shaft The locking claw portion 300b formed at the upper end of the body 300a is locked and held on the periphery of the locking tool insertion hole 200d, and the cover lid 200 is attached to the ceiling inspection port 100 so as to cover the ceiling inspection port 100 from the back side of the ceiling. Place on the periphery. When the locking piece 200c formed on the peripheral edge of the cover lid 200 is placed and held on the standing piece 100a formed on the peripheral edge of the ceiling inspection port 100 via the packing material P ′, the locking tool 300 is shown in FIG. ) In the arrow direction so that the large diameter side of the locking device 300 is positioned on the lower surface of the peripheral edge of the ceiling inspection port 100, and the flange portion 200 b and the locking device 300 can A part is sandwiched to maintain the above-described holding state, and the ceiling inspection port 100 is thereby closed.

  However, in the structure of the above-mentioned Patent Document 1 and the illustrated example, the locking device 300 can be seen from the inside of the unit room, so that it does not look good and gets in the way of cleaning. There are inconveniences such as causing mold. Further, according to such a structure, if there is a dimensional error in the locking tool insertion hole 200d or the locking tool 300, the stability of locking and holding the cover lid 200 is deteriorated, so that dimensional accuracy is also required.

  The present invention has been made in view of the above circumstances, and prevents the cover lid from falling and lifting, which closes the ceiling inspection port, while being attractive in consideration of the design of the ceiling surface of a unit room or the like. The aim is to provide a possible ceiling panel structure.

  The ceiling panel structure according to the invention of claim 1 is a ceiling panel structure comprising a ceiling inspection port and an inspection port cover that is locked and held by the ceiling inspection port via a locking tool. An upright piece having a folded-back portion that is folded outward and downward from the upper end portion is formed on the entire periphery. The rising edge and the upper end of the upper portion are coupled outward from the upper edge of the cover lid. A locking piece having a flange portion formed is formed over the entire circumference, and the locking tool is coupled to a flange portion of the cover lid and one end of the mounting portion, and the flange portion is raised. And an engaging portion that can be engaged with the folded portion in a state of being placed on the upper end portion of the piece, and a packing material is interposed between the ceiling panel and the cover.

In the present invention, as in a second aspect of the present invention, a plurality of the locking devices can be attached at equal intervals along the periphery of the cover lid. That is, the cover can be locked and held at the ceiling inspection port by at least two locking tools. Here, the shape of the cover and the ceiling inspection port is not limited to a substantially square shape, an oval shape, or the like.
According to a third aspect of the present invention, the packing material is mounted on the flange portion, and the flange portion is placed on the upper end portion of the upright piece via the packing material, and further, the fourth aspect is further described. Like this invention, the said packing material shall be provided with the seal lip part elastically contacted over the inner surface whole periphery of the said standing piece.

  According to the ceiling panel structure of the first aspect, since the locking tool is not visible from the inside of the unit room, it has a good appearance and can be configured as a uniformly flat ceiling surface. In addition, the locking tool can be locked to the folded portion in a state where the flange portion is mounted on the upper end portion of the upright piece and is connected to the mounting portion attached to the flange portion of the cover lid and one end of the mounting portion. Since there is a locking part and packing material is interposed between the ceiling panel and the cover, the cover that closes the ceiling inspection port does not drop from the ceiling panel or lift up, making sure the ceiling inspection The cover lid can be latched and held on the periphery of the mouth.

According to the ceiling panel structure of the second aspect, the cover lid can be locked and held at the inspection port by attaching a plurality of locking tools at equal intervals along the periphery of the cover lid.
According to the ceiling panel structure according to claim 3, the packing material is mounted on the flange portion, and the mounting of the flange portion on the upper end portion of the upright piece is made through the packing material. The sealing property can be improved. Therefore, when it is employed in a bathroom, it is possible to prevent water and water vapor from entering the back of the ceiling.
According to the ceiling panel structure of the fourth aspect, since the packing material includes the seal lip portion that is elastically contacted over the entire inner surface of the upright piece, the sealing performance can be further improved. . In addition, when the cover is shifted from side to side and removed from the ceiling inspection port, and the ceiling inspection port is opened, the seal lip portion is pressed and deformed, so that the locking portion of the locking tool is released from the folded portion of the standing piece. The cover can be opened and opened by shifting the cover, so that the cover can be opened and closed easily and smoothly.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing an example of a ceiling panel structure of the present invention, an enlarged view of a portion X in FIG. 2, and FIG. 2 is a partial sectional view of the ceiling panel structure of the present invention.

FIG.1 and FIG.2 has shown the example which employ | adopted this invention for the ceiling panel 3 of the unit bathroom.
The ceiling panel 3 is formed by bending a steel plate or press-molding a synthetic resin panel, and a heat insulating material (not shown) made of gypsum board, glass wool board or the like is attached to the upper surface on the back side of the ceiling panel 3. The ceiling inspection port 1 is provided in part of the ceiling surface in order to perform maintenance of electrical wiring, ventilation equipment, and the like on the back of the ceiling. The ceiling inspection port 1 is normally closed by a cover 2 except during maintenance.
On the periphery of the ceiling inspection port 1, an upright piece 1a having a folded portion 1b folded outward and downward from the upper end portion 1c is formed over the entire circumference. In addition, a locking piece 2c including an upright portion 2a and a flange portion 2b coupled outward from the upper end of the upright portion 2a is formed on the periphery of the cover 2 over the entire circumference.

In the present invention, as shown in FIGS. 1 and 2, the locking member 4 includes an attachment portion 4 a attached to the flange portion 2 b of the cover 2, and a flange portion 2 b that is coupled to one end of the attachment portion 4 a. A locking portion 4b that can be locked to the folded portion 1b in a state of being placed on the upper end portion 1c of the upright piece 1a, and a packing material P between the ceiling panel 3 and the cover 2 is provided. The ceiling panel structure is characterized by being interposed, and according to this, since the locking tool 4 cannot be seen from the inside of the unit bathroom, it can be configured with good appearance. Further, if the ceiling panel 3 and the cover 2 are made of the same material, there is a sense of unity, and the ceiling surface can be made in consideration of design.
Therefore, as shown in FIG. 2, the ceiling surface can be configured to be flat uniformly, and is easy to clean and hygienic.
In the example shown in the figure, the ceiling surface is configured to be flat. However, the present invention is not limited to this, and it goes without saying that the cover 2 may be protruded downward from the ceiling surface or may be disposed so as to be recessed upward. .

FIG. 1A shows a state before the cover 2 is locked and held by the ceiling inspection port 1, and FIG. 1B shows a state where the cover 2 is locked and held by the ceiling inspection port 1.
As described above, the locking device 4 includes the mounting portion 4a attached to the flange portion 2b of the cover 2 and the flange portion 2b that is coupled to one end of the mounting portion 4a and is placed on the upper end portion 1c of the upright piece 1a. Since it has a structure in which a packing material P is interposed between the ceiling panel 3 and the cover 2, the ceiling inspection port 1 is provided. The cover 2 can be securely locked and held at the ceiling inspection port 1 without dropping from the ceiling panel 3 or rising due to wind pressure due to opening and closing of the door.

  Here, although the overall shape of the ceiling inspection opening 1 is not shown in the figure, it is not particularly limited. In the present invention, any shape such as a substantially rectangular shape or an oval shape can be applied. A plurality of the lids 2 are attached at equal intervals along the periphery of the cover 2. For example, in the case of a substantially rectangular ceiling inspection port 1, the cover 2 also has a substantially square shape corresponding to the shape of the ceiling inspection port 1, and at least two locking tools 4 are located at positions opposite to each other on the periphery of the cover 2. Can be attached.

The packing material P is made of an elastic material such as a soft synthetic resin or a rubber material, and is attached between the ceiling panel 3 and the cover 2, that is, in the present embodiment, the flange portion 2 b, and the flange portion 2 b is viewed from the outside. The flange portion 2b is placed on the upper end portion 1c of the upright piece 1a via the packing material P. The packing material P extends over the entire inner surface of the upright piece 1a. A seal lip portion 2d to be elastically contacted is provided. Thereby, since sealing property can be improved, it can prevent water and water vapor | steam permeating into the ceiling back of a unit bathroom.
When the cover 2 is removed from the ceiling inspection port 1 and the ceiling inspection port 1 is opened, the seal lip 2b is pressed and deformed, and the upright piece 1a is detached from the locking portion 4b of the locking tool 4. Since the cover 2 can be shifted and opened, the cover 2 can be opened and closed easily and smoothly.
Here, it goes without saying that the packing material P may be attached by bonding or the like across the standing piece 1a and the flange portion 2b.

Next, how to attach the cover 2 to the ceiling inspection port 1 will be described.
First, a plurality of locking tools 4 are attached to appropriate positions of the locking piece 2c with the packing material P mounted thereon. At this time, since the locking tool 4 has a structure in which the flange portion 2b is held by the mounting portion 4a via the packing material P, there is no fear of wobbling or dropping from the mounting position. Next, the cover 2 is lifted upward from the unit bathroom, and the cover 2 is formed with a flange 2b so that the lock 4b of the lock 4 can be locked with the folded portion 1b. It is placed on the part 1c, whereby the cover 2 is locked and held on the periphery of the ceiling inspection port 1, and the ceiling inspection port 1 is closed.
Needless to say, the locking tool 4 may be attached to the flange portion 2b or the packing material P by bonding or the like.
After the mounting, as shown in FIG. 1 (b), there is a gap between the rising piece 1a at the peripheral edge of the ceiling inspection port 1 and the rising piece 2a of the cover 2. Here, the seal lip of the packing material P Since the part Pa is elastically contacted over the entire inner periphery of the upright piece 1a, the sealing performance can be ensured.

  When the ceiling inspection port 1 is opened, for example, when maintenance is performed, that is, when the cover 2 is removed from the ceiling inspection port 1, the cover 2 in FIG. It can be easily removed if a force is applied upward so that the locking portion 4b and the folded portion 1b are unlocked and then lifted. Here, when shifting to the left and right, the seal lip portion Pa of the packing material P is elastically deformed and becomes a cushioning material, so that it can be easily moved to the left and right.

(A), (b) is a partial notch perspective view which shows an example of the ceiling panel structure of this invention, and is an enlarged view of the X section of FIG. It is a fragmentary sectional view of the ceiling panel structure of the present invention. (A), (b) is a partial notch perspective view which shows an example of the conventional ceiling panel structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling inspection port 1a Standing piece 1b Folding part 1c Upper end part 2 Cover 2a Standing upper part 2b Flange part 2c Locking piece 3 Ceiling panel 4 Locking tool 4a Mounting part 4b Locking part P Packing material Pa Sealing lip part

Claims (4)

In the ceiling panel structure comprising a ceiling inspection port and a cover for the inspection port that is locked and held by the ceiling inspection port via a locking tool,
On the periphery of the ceiling inspection port, an upright piece having a folded portion that is folded outward and downward from the upper end portion is formed over the entire circumference, and on the periphery of the cover lid, an upright portion and an upper end of the upright portion are formed. A locking piece having a flange portion coupled outward is formed over the entire circumference, and the locking tool is coupled to an attachment portion attached to the flange portion of the cover lid and one end of the attachment portion. A locking portion that can be locked to the folded portion in a state where the flange portion is placed on the upper end portion of the upright piece, and that a packing material is interposed between the ceiling panel and the cover. Characteristic ceiling panel structure. In claim 1,
A ceiling panel structure, wherein a plurality of the locking devices are attached at equal intervals along the periphery of the cover. In claim 1 or 2,
The ceiling panel structure according to claim 1, wherein the packing material is mounted on the flange portion, and the flange portion is placed on the upper end portion of the upright piece via the packing material. In claim 3,
The said packing material is provided with the seal lip part elastically contacted over the inner surface whole periphery of the said standing piece, The ceiling panel structure characterized by the above-mentioned.

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