JPH08218613A - Inspection door for system ceiling - Google Patents

Abstract

PURPOSE: To facilitate the opening/closing of an inspection door by fitting the cover of the inspection hole for carrying out the inspection of the device or the like in the ceiling in a door style that can be turned downward, and by providing locking members that have been energized by a spring or the like, and by operating this cover. CONSTITUTION: A cover is fitted to an inspection door frame body 11 that has been suspended from a ceiling surface 2 through a hinge or the like so as to be openable downwards, and also bar-shaped locking members 15 for locking the cover to the frame body are provided so as to be energized by an elastically repulsive member 14 such as a spring. When the cover is opened, operating members 16 such as knobs are operated against the energizing force of the spring 14 for releasing the engagement of the locking members 15 with the frame body 11, so that the cover is opened by turning it downwards or to the inner side. When the cover is closed, the cover is lifted up, and the locking members 15 are locked to the frame body 11. In addition, when the cover is opened or closed, care must be taken not to damage the equipment and wiring in the ceiling, and also not to damage the cover itself due to the dust or the like in the ceiling. Thus, the opening/closing of the cover can be smoothed, and inspection can be easily carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention hangs a plurality of supporting members such as T-bars having a substantially inverted T-shaped cross section in parallel from a ceiling surface and erects ceiling equipment such as lighting fixtures and ventilation openings between them. The inspection door provided on the system ceiling.

[0002]

2. Description of the Related Art As a fixture for mounting ceiling equipment in a structure, there is conventionally one called a system ceiling. As an example, the system ceiling 31 shown in FIG. 3 is a suspension bolt 33 that is hung from a ceiling surface 32, for example.
2 and a space 34 above the ceiling of a predetermined width from each other, the cross section is substantially inverted T
A plurality of character-shaped T-bars 35, 35 are suspended in parallel or in a grid pattern, and a lighting fixture, an air conditioner, or ceiling equipment 36 such as a ceiling panel is installed and supported between the T-bars 35, 35. .

According to this system ceiling 31, various ceiling facilities can be standardized and manufactured, so that they can be efficiently attached to the ceiling surface, and the ceiling between the ceiling surface 32 and this system ceiling 31 can be increased. The back space 34 can be used for arranging an air conditioning duct, electric wiring, and the like. The system ceiling 31 is usually provided with an inspection port 30 for maintenance of the system ceiling 31, the air conditioning duct, the electric wiring, and the like.

As shown in the figure, the structure of the inspection port 30 is a frame 37 which is placed on the lower portion 35a of the T-bar 35 and has an opening in the center, and this frame 37 has a space above the ceiling. Three
It is composed of a lid 38 fitted on the 4 side. Then, to open the opening, the lid 38 fitted to the frame 37 is pushed up into the ceiling space 34 and removed, and is moved in the ceiling space 34.

[0005]

However, in the inspection port 30 having the above-described conventional structure, the lid 38 is pushed up and removed from the frame 37, and then the space 34 above the ceiling is provided.
Since it is opened by moving the inside, there is a problem that the opening / closing operation is complicated. Further, since the removed lid body 38 is moved in the ceiling back space 34, when the lid body 38 is moved, the electric wiring, the air conditioning duct, or the In addition to damaging surrounding equipment such as hanging bolts, the lid 38 itself may be damaged. Also, the space above the ceiling 3
In many cases, No. 4 was dirty with dust, and this sometimes caused the lid 38 moved into the space 34 above the ceiling to be soiled. Therefore, there is a problem that the inspection work such as maintenance becomes dirty and complicated due to the combination thereof.

Therefore, the present invention has been made in order to solve such a problem, and it is possible to easily open and close a system ceiling without damaging or contaminating equipment such as electric wiring and the lid disposed around the system ceiling. The purpose is to provide an inspection port.

[0007]

The system ceiling inspection port of the present invention is made to achieve the above object, and a plurality of support members are suspended in parallel from the ceiling surface, and the illumination is provided between them. In an inspection port provided on a system ceiling in which ceiling equipment such as appliances and ventilation ports are erected, a frame body having an opening for inspection, which is erected between the adjacent support members, and the frame body One end is rotatably engaged to open and close the opening, and the other end of the lid is movably provided toward the frame and is engaged with and disengageable from the frame. A locking member for closing the lid body, a resilient member that is coupled to the locking member and resiliently urges the lid member toward the frame, and a locking member, Projected from the lower surface of the lid body so as to be movable along the moving direction of the locking member,
And an operating member for separating the locking member from the frame body against the elastic member.

[0008]

According to the system ceiling inspection port of the present invention, the opening is closed by the lid body rotatably engaged with the frame body. The closed state of the lid body is maintained by a locking member that is elastically urged toward the frame body by the elastic member and is locked to the frame body. Further, when the opening is opened, the locking member is moved against the elastic member by the operation member connected to the locking member, and the lid is rotated while being separated from the frame. . Therefore, according to the inspection port, the lid body can be easily opened and closed, and the lid body is rotated downward, so that the lid body is placed in the space above the ceiling between the system ceiling and the ceiling surface. No need to move. Therefore, the wiring equipment and the air conditioning equipment arranged in the space above the ceiling are not damaged, and the lid is not damaged or soiled.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a system ceiling inspection port of the present invention will be described in detail below with reference to the accompanying drawings. FIG.
(A) and (b) show a state in which the inspection port 10 according to this embodiment is arranged on the system ceiling 1.

The system ceiling 1 shown in FIG. 1 has suspension bolts 3 suspended from a ceiling surface 2, and a ceiling member 2 which separates a ceiling space 2 having a predetermined width from the ceiling surface 2 and has a substantially inverted T-shaped cross section.
A plurality of character-shaped T-bars 5 are suspended in parallel or in a grid pattern, and ceiling equipment 6 such as a ceiling panel is installed between and supported by the T-bars 5, 5.

The inspection port 10 is connected to the adjacent T
A frame 11 that is installed between the bars 5 and 5 and has an opening 11a for inspection, a lid 12 that is rotatably engaged with the frame 11 at one end thereof to open and close the opening 11a, and a lid. The other end of the body 12 is provided movably toward the frame body 11, and the frame body 1
1 and a locking member 13 that is releasably locked to lock the lid 12 in a closed state, and is connected to the locking member 13.
The elastic member 14 that elastically urges toward the first side and the locking member 15 are provided so as to project from the lower surface of the lid 12 so as to be movable along the moving direction of the locking member 15, The operation member 16 is provided to disengage the locking member 15 from the frame 11 against the member 14.

The frame 11 is a pair of flanges 11 arranged along the T-bars 5 and 5 and mounted on the T-bar 5.
b and 11b and connecting portions 11c and 11c that connect them at their both ends form a rectangular shape, and have an opening 11a at the center thereof.

The flange portion 11b is a member having a substantially U-shaped cross section formed of, for example, steel or stainless steel. As shown in FIG. 1 (a), the T-bar 5 is covered so as to cover the T-bar 5 from above. Placed on. And the opening 11
The side wall 11d facing a is provided with a locking hole 11e into which the locking member 15 is inserted. On the other hand, the connecting portion 11c is a plate-shaped member made of steel, stainless steel, or the like, and connects the pair of flange portions 11b, 11b to each other at both ends thereof, and a hinge 13 is attached to the side surface facing the opening 11a. Has been.

In this embodiment, the hinge 13 is formed by rotatably connecting a pair of plate members with a pin, and one plate member is formed on the side surface of the connecting portion 11c of the frame body 11, for example. It is fixed with bolts and the other plate member is the lid 1.
2 is fixed to the side surface 12a, and thereby the lid body 12 is rotatably engaged with the frame body 11.

The lid 12 is a bottomed box-shaped member made of steel, stainless steel or the like, and its planar shape is a rectangle having an area half the area of the opening 11a. As a result, the opening 11a is closed. And
As shown in FIG. 2, the side surfaces 12a of the lids 12 and 12 are rotatably attached to the connecting portion 11b of the frame body 11 via the locking member 13, whereby the lower side of the system ceiling 1, That is, the door is opened and closed by being turned toward the inside of the room. Further, a side surface 12d of the frame body 11 facing the flange portion 11b is provided with an insertion hole 12e into which a locking member 15 described later is inserted. Furthermore, this lid 12
The bottom surface 12f is provided with an operation opening portion 12b for projecting the operation member 16 downward and the locking member 15 is movable on both sides of the operation opening portion 12b. Holding members 12c, 12c for holding are provided.

The locking members 15 are a pair of rod-shaped members, which are connected to both ends of a resilient member 14 formed of a spring, rubber, leaf spring or the like, and a holding member 12 for the lid 12.
The side surface 12 of the lid 12 is supported by the c and 12c.
It is inserted into the insertion holes 12e, 12e formed in d and is held so as to be slidable in the axial direction. Then, by being elastically urged by the elastic member 14, the end portion thereof is projected toward the outside of the lid body 12. The end of the protruding locking member 15 is
Locking hole 11 provided in the side wall 11d of the flange portion 11b
The lid 12 is inserted into the lid e to maintain the closed state of the lid 12.

Further, the locking member 15 includes an operating member 1
6 and 16 are connected, and these are projected downward from the lower surface of the lid 12 through the operation opening 12 b of the lid 12.

The inspection port 1 having such a structure
To describe the action of 0, in order to open the opening 11a closed by the lids 12 and 12, the pair of operating members 16 and 16 are moved against the elastic member 14 and pulled toward each other. As a result, the end portion of the locking member 15 protruding outward from the side surface 12d of the lid 12 is
The locking hole 11 of the frame 11 is moved toward the inside of the lid 12.
It is released from e and the locked state is released. After that, the lid 12 rotates downward due to gravity.

In order to close the opening 11a with the lid 12, the operation members 16 and 16 are attracted to each other to move the end of the locking member 15 toward the inside of the lid 12, and the lid is closed. Rotate the bodies 12 and 12 upward to open the opening 11a.
Is closed. After that, when the operation members 16 and 16 are released, the locking member 15 is elastically urged by the elastic member 14 to move toward the frame body 11, and the end portion of the locking member 15 is moved to the lid body 12.
The side surface 12d is projected outward and inserted into the locking hole 11e. As a result, the closed state of the lid 12 is maintained.

As described above, according to the inspection port 10 according to this embodiment, the lid 12 can be easily opened and closed by operating the operating member 16, and the lid 12 can be rotated downward. Since the lid 12 is moved, it is not necessary to move the lid 12 in the space 4 behind the ceiling between the system ceiling 1 and the ceiling surface 2.
Therefore, the wiring equipment and the air conditioning equipment arranged in the space 4 above the ceiling are not damaged, and the lid 12 itself is not damaged or soiled.

In this embodiment, the lid 12 is provided with the opening 1.
The opening 11a is assumed to have a half area of the area of 1a and the opening 11a is closed by a set of two sheets, but the present invention is not limited to this, and an area substantially equal to the area of the opening 11a. May be included.

[0022]

According to the system ceiling inspection port of the present invention, the closed state of the lid is maintained by the locking member that is elastically urged by the elastic member, and when the opening is opened,
The locked state of the locking member is released by operating the operating member. This allows the lid to be easily opened and closed. Further, since the lid body is rotated downward, it is not necessary to move the lid body in the space above the ceiling between the system ceiling and the ceiling surface. Therefore, the wiring equipment and the air conditioning equipment arranged in the space above the ceiling are not damaged or soiled, and the lid body is not soiled. As a result, inspection work such as maintenance can be facilitated.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an inspection port of a system ceiling according to an embodiment of the present invention, (a) is a top view thereof, and (b) is a sectional view taken along line AA in (a). .

FIG. 2 is a sectional view showing a state in which an inspection port of the system ceiling of the present invention is opened.

FIG. 3 is a vertical sectional view showing a conventional inspection port of a system ceiling.

[Explanation of symbols]

 1 System Ceiling 2 Ceiling Surface 5 T Bar (Supporting Member) 10 Inspection Port 11 Frame 11a Opening 12 Lid 13 Hinges 14 Repulsion Member 15 Locking Member 16 Operation Member

Claims (1)

[Claims] 1. An inspection port provided on a system ceiling in which a plurality of support members are suspended in parallel from a ceiling surface and ceiling equipment such as a lighting fixture and a ventilation port are installed between them, and the adjacent inspection members are adjacent to each other. A frame body provided between the support members and having an opening for inspection, a lid body having one end rotatably engaged with the frame body to open and close the opening portion, and another lid body A locking member that is movably provided at the end toward the frame body and that is lockably and disengageably locked to the frame body to close the lid body, and that is connected to the locking member. An elastic member that elastically urges toward the frame body, and an elastic member that is connected to the locking member and is movably protruded from the lower surface of the lid along the moving direction of the locking member. Inspection for a system ceiling, comprising: an operating member that disengages the locking member from the frame against the member. .