JP2512681B2 - Ceiling panel mounting structure for the ceiling inspection port - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling panel mounting structure for a ceiling inspection port.

[0002]

2. Description of the Related Art Conventionally, a ceiling panel is attached to an inner frame of a ceiling inspection port by pressing an inner panel of the inner frame of the inner frame to press the ceiling panel against the flange. The pressing members provided at a plurality of locations were screwed to the inner frame.

[0003]

However, in the above-mentioned conventional structure, in order to attach the ceiling panel to the inner frame, a plurality of holding members and screws for fixing the respective holding members are required, and the inner frame is also required. There is a problem that it is necessary to machine a screw hole for the above, and it takes time and effort to fix the plurality of pressing members to the ceiling panel with screws, which results in an increase in cost.

The present invention is intended to solve such a problem, and it is an object of the present invention to attach the ceiling panel to the inner frame of the ceiling inspection port very easily and to reduce the cost.

[0005]

In order to solve this problem, the present invention is to mount a ceiling panel on a collar portion inside an inner frame which is openably and closably attached to an outer frame of a ceiling inspection port, A head is formed at the upper end of the rising wall so as to bulge in the thickness direction of the rising wall, and the ceiling panel is pressed by a pressing piece of a leaf spring that engages with the head so as to embrace the head. Is the gist.

[0006]

With this structure, the ceiling panel is attached to the inner frame of the ceiling inspection port by using the leaf spring which is engaged with the head formed on the upper end of the rising wall of the inner frame so as to bulge in the thickness direction of the rising wall. As a result, it is possible to carry out the process very easily and reduce the cost.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, the first embodiment shown in FIGS. 1 to 3 will be described. 1 is a state in which the opening 3 of the outer frame 2 is closed by fitting it inside the outer frame 2 of the ceiling inspection port and the opening of the outer frame 2. Three
Is an inner frame which is engaged with the outer frame 2 to be rotatable between the opened state and the open state. The inner frame 1 is a state in which the opening 3 of the outer frame 2 is closed. It is designed to be locked to 2. On the inner frame 1, a ceiling panel 7 made of the same material as a ceiling panel 6 mounted on and mounted on a flange portion 4 on the inner side, a flange 5 on the outer periphery of the lower end of the outer frame 2, and a rising wall 8 of the inner frame 1 is mounted.
Lifting is prevented at the lower end of the leaf spring 9 with which the upper end engages so as to be attached to the upper end. More specifically, the leaf spring 9 has a claw portion which engages with the upper end of the rising wall 8 of the inner frame 1 in the upper end of the reverse wall 10 having a substantially V-shaped cross section as shown in FIG.
11 is provided, and pressing pieces 12, 12 are formed in a bifurcated shape from the upper end where the claw portion 11 is formed to the lower end, and the lower ends of the pressing pieces 12, 12 contact the upper surface of the ceiling panel 7. The ceiling panel 7 is prevented from rising by contacting with it. At this time, even if a force is applied in a direction of lifting the leaf spring 9 from the ceiling panel 7, that is, a direction in which the leaf spring 9 is disengaged from the reverse narrowed portion 10 at the upper end of the rising wall 8 of the inner frame 1, the reverse narrowed portion 10
The inner lower end portion 10a serves as a fulcrum, the leaf spring 9 is prevented from rotating, and the ceiling panel 7 can be securely pressed.
In addition, even if the thickness of the ceiling panel 7 mounted and mounted on the collar portion 4 of the inner frame 1 is changed, the difference in thickness is caused by the leaf spring 9
It can be easily absorbed by the deformation of. The leaf springs 9 are arranged at a plurality of positions in the circumferential direction of the rising wall 8 of the inner frame 1 so as to press the ceiling panel 7.

Although the first embodiment has been described above, the leaf spring for pressing the ceiling panel is not limited to the leaf spring shown in the first embodiment. For example, FIGS.
The second to fifth embodiments shown in FIG. 7 are also conceivable. That is, the leaf spring 9 shown in FIG. 4 is provided with a claw portion 14 at the upper end that engages so as to be held by the upper end portion 13 of the rising wall 8 of the inner frame 1 having a substantially T-shaped cross section, and also shown in FIG. The leaf spring 9 has a substantially T-shaped cross section of the rising wall 8 of the inner frame 1 and is provided at its upper end with a claw portion 17 which engages so as to be embraced by an upper end portion 16 having a downwardly projecting portion 15 on the outer periphery. The leaf spring 9 shown in FIG. 6 is provided with a claw portion 19 at the upper end which engages with the upper end portion 18 having a circular cross section of the rising wall 8 of the inner frame 1 so as to be held, and the leaf spring 9 shown in FIG. The upper end is provided with a claw portion 21 which is engaged with the upper end portion 20 having a rectangular cross section of the rising wall 8 of the frame 1 so as to be held, and other configurations are the same as those of the first embodiment. By the way, what is common to these first to fifth embodiments is that the head formed to bulge in the thickness direction of the rising wall 8 at the upper end of the rising wall 8 of the inner frame 1 has the claw portion of the leaf spring 9. Is held and engaged, and even if a force is exerted on the rising wall 8 so that the leaf spring 9 is pulled out upward, the leaf spring 9 against the rising wall 8 is engaged.
The falling out of the ceiling panel is prevented, and the movement of the ceiling panel trying to rise can be suppressed.

Further, the leaf spring 9 shown in FIG.
It has a shape in which the pressing pieces 12, 12 are formed in a bifurcated shape from the upper end where the is formed to the lower end, but as shown in FIG. 8, the pressing pieces 12, 12 are formed only at the lower end. It may be. Further, in each embodiment, the pressing piece of the leaf spring 9
Although the lower ends of 12 and 12 are in contact with the upper surface of the ceiling panel 7 to prevent the ceiling panel 7 from rising, the ceiling panel 7
When the thickness of the leaf spring 9 increases, the leaf spring 9 warps greatly
The ceiling panel 7 will be pressed by the back surface of the upper portion of the ceiling.

[0010]

As described above, according to the present invention, the ceiling panel can be attached to the inner frame of the ceiling inspection port without using the pressing member and the screw for fixing the pressing member as in the conventional example. By using a leaf spring which is formed at the upper end of the rising wall and which engages with the head formed so as to bulge in the thickness direction of the rising wall, this can be performed very easily and cost reduction can be achieved. In particular, according to the present invention, since the claw portion of the leaf spring embraces and engages the head formed so as to bulge in the thickness direction of the rising wall on the upper end of the rising wall of the inner frame, On the other hand, even if a force is applied to the leaf spring to pull it out upward, the leaf spring is reliably prevented from coming off the rising wall, and the movement of the ceiling panel attempting to float can be suppressed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing how a ceiling panel is attached to an inner frame of a ceiling inspection port according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the main part.

FIG. 3 is an enlarged perspective view of the leaf spring.

FIG. 4 is an enlarged cross-sectional view of an essential part showing a state where the ceiling panel is attached to the inner frame of the ceiling inspection port in the second embodiment of the present invention.

FIG. 5 is an enlarged sectional view of an essential part showing a state where a ceiling panel is attached to an inner frame of a ceiling inspection port in a third embodiment of the present invention.

FIG. 6 is an enlarged sectional view of an essential part showing a state in which a ceiling panel is attached to an inner frame of a ceiling inspection port according to a fourth embodiment of the present invention.

FIG. 7 is an enlarged sectional view of an essential part showing a state in which a ceiling panel is attached to an inner frame of a ceiling inspection port in a fifth embodiment of the present invention.

FIG. 8 is an enlarged perspective view of a leaf spring according to a sixth embodiment of the present invention.

[Explanation of symbols]

 1 Inner frame 2 Outer frame 3 Opening part 4 Collar part 5 Collar part 6 Ceiling panel 7 Ceiling panel 8 Rising wall 9 Leaf spring 10 Reverse recessed part 11 Claw part 12 Holding piece 13 Upper end part 14 Claw part 15 Projection part 16 Upper end Part 17 Claw 18 Upper end 19 Claw 20 Upper end 21 Claw

Claims (1)

(57) [Claims] 1. A ceiling panel is placed on a flange portion inside an inner frame which is openably and closably attached to an outer frame of a ceiling inspection port, and the upper wall of the inner frame is bulged in the thickness direction of the rising wall at the upper end of the rising wall.
A ceiling panel mounting structure for a ceiling inspection port, characterized in that a head is formed so as to hang down, and the ceiling panel is pressed by a pressing piece of a leaf spring whose upper end engages so as to be held by the head. .