JP2001352616A - Space duct cover mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a space duct cover simple mounting structure and enables its mounting and removing work, to be performed easily and safely. SOLUTION: The cover 5 is formed with dimensions slightly smaller in width and slightly larger in height than those of an inspecting hole 2. The right and left edges of the cover 5 are bent to form bent parts 6, the edge parts of which is cut diagonally to form contacting parts 7. On the back surface of the space duct 1, guides 8 for the cover 5 are fixed. The cover 5 is fitted onto the space duct 1, in contact with the guides 8 and fastened with screws to the space duct 1 in a state of being supported by the guides 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a cover for covering an inspection hole for maintenance and inspection of a space duct installed for concealing wiring between a ceiling and a panel.

[0002]

2. Description of the Related Art As shown in FIG. 5, a cover 32 of an inspection hole 31 of a conventional space duct has a screw hole provided on the periphery of the inspection hole 31 from the outside and a screw hole 33 of the cover 32 opposed to each other. It was inserted and tightened and fixed.

[0003] Alternatively, FIG.
As shown in the figure, an opening 36 having a cutout 35 at the upper end is formed in the main body 34, and a cover 37 for covering the opening 36 is formed.
Is provided with a downward locking piece 38 on both sides of the lower inner surface thereof, and a horizontal hook 39 is provided on the upper inner surface side thereof so that the locking piece 38 is engaged with the lower edge of the opening 36 and the hook 3 is provided.
9 is interposed in the notch 35 provided at the upper end of the opening 36, and the cover 37 is slid to lock the hook 39 on the peripheral plate of the notch 35.

[0004]

However, FIG.
In the prior art space duct cover mounting structure shown in FIG. 1, the cover 32 must be attached and detached with screws such as a screwdriver while supporting the cover 32, even though the work is performed at a height near the ceiling. Instead, it was difficult to work alone. For this reason, the screw tightening operation takes a long time, and the workability is deteriorated. Also, the screw head is exposed,
It didn't look good.

In the prior art space duct cover mounting structure shown in FIG. 6, since the cover 38 is a single plate, there is no catch for supporting the cover 38 from below at the time of mounting, and the cover 38 is attached to the main body. However, it is difficult to slide the sheet while keeping it pressed to the side and to lock it. Similarly, the removal operation was also difficult. Since the cover 38 was attached by being slid in the lateral direction, there was a risk that the cover would be dislodged and fall off from the main body when vibrated due to an earthquake or the like. In addition, the end face of the cover 38 was exposed, and the appearance was poor.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a space duct cover mounting structure which can be easily and safely mounted and removed with a simple structure. Formed slightly smaller than the horizontal dimension of the hole and slightly larger than the vertical dimension, bent the left and right ends of the cover to form a bent part, cut the end of the bent part diagonally, and provide a contact part At the same time, a cover guide is attached to the back surface of the space duct, and the cover comes into contact with the guide, is fitted into the space duct and is supported by the guide, and the cover is screwed to the space duct.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the cover duct mounting structure according to the present invention, a guide is attached to the end of the inspection hole from the inside, and the cover is brought into contact with the guide by the guide so that the guide slides. Hold it in the vicinity of the inspection hole of the space duct body, screw it down, and fix the cover to the body.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of a space duct cover mounting structure according to the present invention; FIG.

The space duct 1 is installed to hide the wiring between the ceiling and the panel, and has an inspection hole 2 for maintenance and inspection on the front surface 4 of the main body 3. The inspection hole 2 is covered with a cover 5.

The cover 5 is formed to have a size slightly smaller than the horizontal dimension of the inspection hole 2 and slightly larger than the vertical dimension. Cover 5
A bent portion 6 is formed at each of the left and right ends, and an end of the bent portion 6 is cut obliquely to provide a contact portion 7.

From the inside of the main body 3 at the left and right ends of the inspection hole 2,
Attach the guide 8. The guide 8 is bent in a step shape,
An attachment part 9 and a support part 10 are formed. Attach the mounting part 9 so as to face the vicinity of the inspection hole 2 of the main body 3.

A decorative screw 11 is mounted on the cover 5, and a cut 12 is provided at a position facing the decorative screw 11 on the periphery of the inspection hole 2 of the main body 3.

The cover 5 is attached by using the decorative screw 11 as a handle, and the contact portion 7 of the cover 5 is brought into contact with the guide 8 while holding the decorative screw 11. The cover 5 is inserted between the guide 8 above the inspection hole 2 and the main body 3 while lifting the cover 5, and then the guide 8 below the inspection hole 2 and the main body 3 are inserted.
Lower it between. The decorative screw 11 is opposed to the cut 12, the decorative screw 11 is tightened, and the cover 5 is attached to the main body 3 so as to fit in the same plane.

The structure for mounting the cover of the space duct according to the present invention is not limited to the shape shown in the figure. For example, if necessary, the four sides of the cover may be bent to increase the strength, Changes can be made as appropriate without departing from the spirit of the invention.

[0015]

As described above, the cover mounting structure for a space duct according to the present invention is formed so that the cover is slightly smaller than the lateral dimension of the inspection hole and slightly larger than the vertical dimension.
The left and right ends of the cover are bent to form a bent part, the ends of the bent part are cut diagonally, and a contact part is provided, and a cover guide is attached to the back of the space duct, and the cover is attached to the guide. The cover is screwed into the space duct while it is in contact with the space duct and supported by the guide.The cover can be temporarily fixed simply by fitting it into the space duct. But it can be installed, and work at high places can be done easily and safely. Further, since the guide temporarily fixes and supports the cover, the screw tightening operation can be performed easily and safely. For this reason, work time can also be shortened. Since the cover is fitted into the space duct, there are few exposed parts,
It looks good. Since only a guide having a simple shape is used without using special parts, manufacture is easy. Since the cover is supported and screwed by the guide attached to the space duct, there is no danger that the cover will fall off even when vibration such as an earthquake is applied.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a structure for attaching a cover of a space duct according to the present invention.

FIG. 2 is an explanatory diagram viewed from a back surface direction in FIG. 1;

FIG. 3 is an operation explanatory view of a space duct cover mounting structure according to the present invention.

FIG. 4 is a side sectional view of FIG.

FIG. 5 is an explanatory view showing a space duct cover mounting structure according to the related art.

FIG. 6 is an explanatory view showing a space duct cover mounting structure according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Space duct 2 Inspection hole 3 Opening 4 Front 5 Cover 6 Bending part 7 Contact part 8 Guide 9 Mounting part 10 Support part 11 Decorative screw 12 Notch

Claims (1)

[Claims] 1. A mounting structure for a cover for covering an inspection hole for maintenance and inspection of a space duct for concealing wiring installed between a ceiling and a panel, wherein the cover is larger than a lateral dimension of the inspection hole. Formed slightly smaller than the vertical dimension slightly larger than the vertical dimension, the left and right ends of the cover are bent to form a bent part, the end of the bent part is cut diagonally, and a contact part is provided, On the back of the space duct, attach the guide of the cover, the cover abuts the guide,
A cover mounting structure for a space duct, wherein the cover is screwed to the space duct while being fitted in the space duct and supported by the guide.