JPH09125434A - Opening structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent persons or the things from dropping in an opening and protect persons in a space connected to the opening from falling materials. SOLUTION: Operators can get in a basement equipment chamber or get out therefrom through an inspection aperture 3 opened on a floor slab 1. The upper part of the inspection aperture 3 is closed by laterally arranged two floor panels 4. A sign board on which letters indicated as 'under construction' are marked, is fixed to the rear face of the floor panel 4 and an erecting metallic tool is temporarily fixed. A rectangular support frame member 5 is horizontally fitted in the inspection aperture 3 of the lower side than the floor panel 4. The horizontal plate parts 5a in the support frame members 5 are horizontally protruded along the longer sides from respective longer sides. A simple cover 6 is put on these horizontal plate parts 5a so as to be laterally transferable along the horizontal parts 5a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening structure such as an inspection port for underground facilities provided in a condominium or the like, which communicates with a space below which a person can enter.

[0002]

2. Description of the Related Art An inspection port that communicates with the space of an underground facility such as an underground water tank chamber is generally provided on the floor, and for example, a part of a panel forming the floor surface opens and closes the inspection port. Constitutes the floor lid of. When performing the inspection work of the underground equipment, the worker enters the space where the underground equipment is installed and performs the inspection operation with the floor cover removed, that is, with the inspection opening opened.

Here, it is troublesome to open and close the floor cover from the lower side when the floor cover is opened, and because a person enters the space communicating with the inspection port, work is performed. This is for indicating that

[0004]

However, in the above-mentioned opening structure, in order to perform the inspection work with the floor cover removed, that is, with the inspection opening opened, the vicinity of the inspection opening is closed. There is a risk that a passing person may fall into the inspection port without noticing that the inspection port is open, or an object may fall from the inspection port and hit a worker who is working.

The present invention has been made in view of the above-mentioned problems, and prevents a person or the like from falling into the opening, and at the same time, prevents a person in the space communicating with the opening from falling objects. An object is to provide an opening structure having a simple structure for protection.

[0006]

In order to achieve the above-mentioned object, an opening structure according to claim 1 of the present invention comprises:
In a structure of an opening for an entrance that communicates from above with a space of a size that allows a person to enter, a main lid that opens and closes the opening, and a fall prevention that is provided below the main lid and that can open and close the opening It is characterized by including a simple lid for use and a lid support portion that supports the simple lid so as to be movable laterally.

In the opening structure of the present invention, when entering the space communicating with the opening, the main lid is opened, and when the opening is closed by the simple lid, the simple lid is moved laterally. The opening is closed by moving the simple lid in the lateral direction after opening the opening by moving it in the direction once and entering into the space communicating with the opening. Since the simple lid can be opened and closed simply by moving it laterally, the opening can be easily opened and closed from within the space, that is, from below.

With this, even when the main lid is open, the opening can be easily set to be closed by the simple lid, and even if a person or an object falls into the opening, The simple lid prevents it from falling into the space communicating with the opening. Next, the invention described in claim 2 is different from the structure described in claim 1 in that
A display function is provided on the back surface of the main lid, and support means for supporting the main lid in an upright state is provided.

According to the present invention, when the main lid is opened, that is, when the opening is open, the main lid is erected by the supporting means, and the display function provided on the back surface of the main lid allows It becomes possible to call attention to people near the opening that the opening is open.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. First, the structure will be described. As shown in FIG. 1, an underground facility room 2 which is a space for storing underground facilities such as an underground water tank is provided below the floor slab 1.
The basement equipment room 2 can be accessed through an inspection port 3 which is an opening opening in the floor slab 1. The inspection port 3 has a rectangular cross section.

The upper part of the inspection port 3 is closed by two floor panels 4 arranged in the horizontal direction. Each floor panel 4 is a rectangular plate member that constitutes a main lid, and the outer peripheral edge thereof is
It is supported from below by a step 3 a formed on the floor slab 1. Then, by lifting each floor panel 4 upward, the floor panel 4 is removed and the inspection port 3 is opened.
Further, the inspection port 3 is closed by placing the floor slab 1 from above so that it is supported by the step 3a of the floor slab 1 again.

An inspection port 3 below the floor panel 4 is also provided.
As shown in FIG. 1 and FIG. 2, a rectangular support frame member 5 is horizontally installed therein. A plate-shaped horizontal portion 5a is horizontally projecting from the opposing long sides of the support frame member 5 along the long side, and the pair of horizontal portions 5a constitutes a lid support portion. . In addition, in FIG. 2, the frame member on the short side is omitted.

The simple lid 6 is placed on the pair of horizontal portions 5a and is movable laterally along the horizontal portions 5a. The simple lid 6 is a rectangular lid member that is large enough to cover half of the inspection port 3, that is, substantially the same size as the floor panel 4, and its surface has a plurality of rods. The member 6a has a lattice shape.

Further, as shown in FIG. 4, a display plate 7 described as "under construction" is fixed to the back surface of the floor panel 4, and the back surface of the display panel 7 is used to lean against the floor panel 4. The metal fitting 8 is temporarily fixed. As shown in FIGS. 4 and 5, the leaning metal fitting 8 includes a pair of leaning metal fitting bodies 8a for leaning the floor panel 4 and two horizontal bridging members 8b bridged between the pair of leaning metal fitting bodies 8a, And 8c.

Next, the use of the inspection port will be described. In the opening structure as described above, when performing inspection work or the like in the underground facility room 2, one floor panel 4 is removed, and the metal fittings 8 temporarily fixed to the floor panel 4 are removed to assemble and assemble. As shown in FIG. 5, the floor panel 4 is supported in a standing state by being leaned against the leaning metal fitting 8 as shown in FIG.

This makes it possible to alert the person passing by in the vicinity of the inspection port 3 that the inspection port 3 is open by the display on the back surface of the floor panel 4 indicating that the inspection is in progress.
Therefore, in this embodiment, it is not necessary to separately prepare a signboard for display to call attention. After removing one of the floor panels 4 and diverting it as a display board as described above, as shown in FIG. 3, the simple lid 6 is once horizontally displaced to open the inspection port 3 and enter the underground facility room 2. Get in. Subsequently, the simple lid 6 is laterally displaced from the lower side to the position shown in FIG. 2, and the opening of the inspection port 3 is closed again. Simple lid 6
Can be easily moved by simply shifting it laterally.
The inspection port 3 can be easily opened and closed.

At this time, by closing the inspection port 3 with the simple lid 6 as described above, even if a passerby inadvertently puts his / her foot into the inspection port 3, the inspection port 3 will still be placed on the simple lid 6. It is prevented from falling into the basement equipment room 2 below the inspection port 3. Further, even if an object falls into the inspection port 3 from above, it is prevented from being placed on the simple lid 6 and falling into the basement equipment room 2, so that a worker working in the basement equipment room 2 can be prevented. The risk of falling objects is avoided.

In the above embodiment, an example in which the surface of the simple lid 6 is formed in a lattice shape has been described, but the present invention is not limited to this. For example, the surface may be made of transparent reinforced plastic or the like so that the light can be taken and the inside and the outside can be seen from the outside. In addition, the surface of the simple lid 6 may be formed of a single iron plate or the like if lighting is not required.

Alternatively, the simple lid 6 is made of cloth or the like so that it can be folded, and when the inspection port 3 is opened, it is moved laterally to be folded, and when it is closed, it is pulled out toward the inspection port 3 side and extended to extend the inspection port. It may be configured to cover 3. Further, in the above-described embodiment, the simple lid 6 is exemplified by the configuration in which it is supported from below by the horizontal portion 5a, but the configuration of the lid support portion that supports the simple lid 6 so as to be movable laterally is not limited to this. However, it may be movably supported by another well-known and commonly used technique.

Further, the simple lid 6 is supported by a roller or the like so as to be easily moved laterally, and the horizontal portion 5a is provided with a slight inclination so that the simple lid 6 is moved toward the opening portion by its own weight. Thus, even if the worker who has entered the equipment room 2 forgets to close the simple lid 6, the inspection port 3 may be automatically closed by the simple lid 6. Further, in the above-described embodiment, the display function provided on the back surface of the floor panel 4 is configured by fixing the display plate 7 to the back surface.
It is not limited to this. For example, a metal fitting for locking the display plate may be provided on the back surface of the floor panel 4, and the display board may be detachably attached to the back surface of the floor panel 4, or a hook may be provided on the back surface of the floor panel 4. In advance
The display function may be achieved by hooking a rope attached to the display board on the hook. The point is that the display function may be any display on the back surface of the floor panel 4. When the display board is detachable, it is not necessary to always install the display board on the back side of the floor panel 4, and an operator can bring it in, the inside of the inspection port 3 or the basement room 2 It may be installed by hooking inside.

In the above embodiment, the metal fitting 8 for leaning the floor panel 4 as the supporting means is temporarily fixed to the back surface of the floor panel 4, but is described below.
An operator may bring the metal fitting 8 to the inspection port 3 or may install it by hooking it in the inspection port 3 or in the basement facility room 2. Also, the floor panel 4
The metal fitting for leaning against is not limited to the above metal fitting. In short, if the floor panel 4 can be supported in an upright state, the supporting means may be composed of other well-known and commonly used metal fittings.

The supporting means for keeping the floor panel 4 in the upright state is not limited to the above-mentioned leaning method. For example, if the floor panel 4 is of a type that opens and closes by pivoting in the vertical direction via a hinge, a lock mechanism that restrains the floor panel 4 with its back surface facing diagonally upward is provided, The lock mechanism may constitute the support means.

Further, in the present embodiment, the inspection port 3 is described as an example of the opening structure, but the invention is not limited to this. The opening structure of the present invention may be applied to openings such as entrances and exits provided on the floor leading to an underground warehouse or the like. The point is that it is applicable if there is a space below the opening that allows people to enter. In this case, for the display on the back surface of the main lid, for example, an appropriate display content such as "in use" is adopted.

Further, in the above embodiment, the display function and the supporting means are provided on the back surface of the floor panel 4, but the display function may not be provided if a signboard or the like is separately prepared.

[0025]

As described above, in the opening structure of the present invention, the opening is closed by the simple and simple lid even when the main lid provided in the opening is open. , Preventing a passerby from falling into the space communicating with the opening, and even if an object falls into the opening, the simple lid causes the falling object to fall into the space communicating with the opening. Therefore, it is possible to prevent the falling object from hitting a person working in the space.

At this time, if the invention described in claim 2 is adopted, since the display function is provided on the back surface of the main lid, it is not necessary to separately prepare a signboard for indicating that the work is under construction or the like. The opening of the opening can be urged to a person passing by in the vicinity of the opening by a simple means of keeping the main lid upright. This further has the effect of preventing a passerby from falling into the opening.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an opening structure according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the simple lid according to the embodiment of the present invention is closed.

FIG. 3 is a perspective view showing a state in which the simple lid according to the embodiment of the present invention is opened.

FIG. 4 is a diagram showing a back surface of a floor panel and a metal fitting according to an embodiment of the present invention.

FIG. 5 is a diagram showing a state in which a floor panel is leaned against a metal fitting according to an embodiment of the present invention.

[Explanation of symbols]

 1 Floor slab 2 Basement equipment room 3 Inspection port 4 Floor panel 5 Support frame member 5a Horizontal part 6 Simple lid 7 Display plate 8 Standing metal fitting

Claims (2)

[Claims] 1. In a structure of an opening / exit for communicating with a space having a size that allows a person to enter from above, a main lid for opening / closing the opening, and the opening provided below the main lid are provided. An opening structure comprising: a simple lid for opening and closing that can be opened and closed, and a lid support portion that supports the simple lid so as to be movable laterally. 2. The opening structure according to claim 1, wherein a display function is provided on the back surface of the main lid, and a support means for supporting the main lid in an upright state is provided.