JPS5841156A - Apparatus for fixing inspection port of ceiling - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing device for a ceiling inspection port installed for inspecting electric wires, various types of piping, etc. arranged inside the ceiling.

Conventionally, when installing a ceiling inspection port on the ceiling, it was difficult to align (level) the ceiling surface and the bottom edge of the outer frame.
It required a lot of skill and specialized skills. Under these circumstances, there has been a need for a method that allows even non-experts to easily align the ceiling surface and the lower end of the outer frame.

In addition, the method of attaching a ceiling inspection port to the ceiling was to first install a ceiling board on a lightweight steel frame base, then create an opening for the ceiling inspection day, fit the ceiling inspection port, and hang it from the ceiling.

However, since the workers who are engaged in the process of installing ceiling panels and the workers who are engaged in the process of installing ceiling inspection ports are generally different people, it is inconvenient to wait until the ceiling panels are installed and then install ceiling inspection ports. It was inefficient.

Therefore, the present invention provides a support piece consisting of a horizontal portion into which a pressure bolt is screwed and a vertical portion that fixes the outer frame, a locking piece is provided on the vertical portion of this support piece, and an adjuster is provided on this locking piece. By providing a fixing device for the ceiling inspection hole with the ceiling panel installed, it is possible to easily align the ceiling surface with the lower edge of the outer frame. The ceiling inspection port is installed on the ceiling to streamline the work of installing the ceiling inspection port on the ceiling.

Hereinafter, the present invention will be described in detail based on the drawings. First of all, Figure 1 shows the installation state of the ceiling inspection port.
is an outer frame and is fixedly fixed to a fixture 7 installed on a lightweight steel frame base 8 (field edge) by a fixing device 2, which is the main part of the present invention, and suspends and fixes the ceiling inspection opening.

Therefore, the adjustment device 2, which is the main part of the present invention, will be explained in detail. In FIGS. 2 and 3, reference numeral 3 denotes a support piece for the fixing device, which has an abbreviated shape and is composed of a horizontal portion 3a into which a pressure bolt 5 is screwed, and a vertical portion 3b hanging down on one side of the horizontal portion 3a. be done. At the lower part of the vertical portion 3b is a screw hole 3 for fixing the outer frame 1. C is formed. Then, the locking piece 4 is formed by cutting out the wall surface of this vertical portion 3h and bending the cut piece perpendicularly to the vertical portion 313 and facing parallel to the horizontal portion 3a. A bolt-shaped adjuster 6 is screwed upward from below into the locking piece 4 so as to press a channel-shaped fixture 7.

The locking piece 4 is formed by cutting out the wall surface of the vertical portion 3b of the support piece, but it may also be formed separately from the support piece and then fixed to the support piece.

In this way, the locking piece 4 is provided integrally with the support piece 3 and is fixed to the outer frame 1, so that it cannot slide on the outer frame 1. Therefore, the dimensions of the fixture I and the ceiling plate 9 are adjusted by an adjuster 6 screwed into the locking piece 3. That is, by rotating the press bolt 5, the adjuster 6 is positioned as low as possible at this time, and when the outer frame 1 fixed to the support piece 3 is moved up and down to position it, the locking piece 4 A gap is created between the fixing member 7 and the fixing member 7. This gap is compensated for by tightening the adjuster 6 and pressing the fixture 7, and as a result, the fixture 7 is held between the locking piece 4 and the press bottle 5.

More specifically, the method for suspending and fixing the ceiling inspection port to the ceiling is as follows.

(1) Fix the vertical portion 3b of the support piece 3 to the outer frame 1.

(2) The lower end of the suppression bolt 5 screwed into the support piece 3 of the fixing device 2 is placed on the upper surface of the fixing device 7 installed on the lightweight steel frame base 8 to support the extension 1.

(3) Tighten the suppression bolt 5 (its tip hits the top surface of the fixture 7) and lift the outer frame 1. This operation is continued until the lower end of the outer frame 1 reaches the level of the ceiling board 9.

(4) Next, tighten the adjuster 6 screwed into the locking piece, press its tip against the lower surface of the fixture 7, and clamp the fixture 7 between the adjuster 6 and the suppression bolt 5 to fix it.

FIG. 4 shows a modified structure of the adjuster 6, which consists of a push pin 10 inserted through the locking piece 4 and a spring 11 that accumulates pressure in the push pin 10 upward. By tightening the press bolt 5, the push pin 10 is pushed downward (while the push pin 10 is in contact with the lower surface of the ceiling base), and at the same time, the outer frame 1 is moved upward to perform level adjustment.

This eliminates the step of tightening the adjuster 6 in FIGS. 1 and 2.

FIG. 5 shows the fixing device 2 of the present invention in a joint type 12.
This is an example of application to a ceiling inspection opening.

As described above, according to the present invention, the fixing tool is held between the suppression bolt and the locking piece, and the ceiling inspection opening can be hung before the ceiling board is attached to the lightweight steel frame base. This can be done without waiting for the ceiling panel installation process, which is the case with conventional construction, and the construction period can be shortened. Moreover, since the ceiling board only needs to be stretched around the outer frame of the ceiling inspection opening, it is possible to avoid misalignment of the opening position of the ceiling board, unlike in conventional construction (opening in the ceiling board and fitting it into the outer frame). Errors in opening dimensions can be eliminated.

Further, since the vertical adjustment of the ceiling inspection hole is carried out using a pressing bolt and an adjuster, the adjustment is easy and can be made accurately and finely.

Furthermore, since the pressing force is a bolt and an adjuster, and the fixture is clamped in place, there are advantages such as the ceiling inspection opening does not fall down during use or float upward when the inner frame is opened or closed. be.

[Brief explanation of the drawing]

Claims (1)

[Claims] A fixing device for a ceiling inspection opening, characterized in that a locking piece having an adjuster is provided on the vertical part of a support piece consisting of a horizontal part into which a suppression bolt is screwed and a vertical part into which an outer frame is fixed.