JPS636394Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of armor doors used in storage bodies and other areas.The purpose of this project is to be able to open and close smoothly without making any noise during opening and closing operations, and to have sufficient strength. It is an object of the present invention to provide an armor door whose outer surface can be painted in a glossy color.

Conventional shutters have the drawback that the horizontally long slats as unit components are made of metal, which causes unpleasant contact noises when the unit slats come into contact with each other during opening/closing operations. The structure requires a separate connecting member to be interposed between each unit slat, which complicates the structure, not only makes the connecting work extremely troublesome, but also complicates processing and contributes to high manufacturing and assembly costs. Ta. If the entire unit is made of synthetic resin, the unpleasant contact noise between the unit slats will be eliminated, and it will be easy to manufacture and suitable for mass production, contributing to cost reduction. It was easily susceptible to fire and was problematic in terms of fire resistance.

In the past, in order to eliminate noise and improve fire resistance, one side of the slat in a metal shutter was made of a metal plate and the other side was made of a 0.8 mm thick plate.
An invention has been made for a metal shutter with a synthetic resin surface about 5 mm thick, but this is not easy to manufacture and there is a tendency for costs to increase. Also, since the two materials are molded as a single unit, the difference in thermal expansion coefficient caused by temperature changes makes it prone to peeling, and there is a risk that the intended purpose will not be achieved.

This project was devised in view of this situation, and its gist is that each unit slat is constructed by a combination of a synthetic resin base and a metal plate front cover, and that each unit slat is connected. of,
A connecting part is integrally formed on each base without the need for a special connecting member, and when the unit slats are connected vertically, the upper and lower metal plate front covers keep them in a non-contact state. The point is that the entire front surface is covered, leaving a very small gap. To explain in detail in the following examples, each unit slat A is composed of a combination of a base 1 and a front cover 2 configured as shown in FIG. 1', the upper edge is formed with a locking groove 3 having an upper surface opening 4, and the lower edge has a swollen tip that is to be fitted and locked into the locking groove 3 of another adjacent base 1. A latching protrusion 5 having a portion 6 is integrally extended. The front cover 2 is made of a metal plate, the upper and lower edges of which are bent inward to form L-shaped bent edges 7, 7 with their tips facing each other. By making it possible to tightly fit the box 1' of the base body 1 within the distance l between the tips and considering the bending height l' of the vertical sides 7' of the double bent edges 7, the structure shown in FIG. As shown, each surface cover 2 is attached to the base body 1 in a connected state. A slight gap m is provided between each surface cover 2, so that each surface cover 2 is kept in a non-contact state, and no contact noise is generated when the proposed armor door is opened and closed. While doing so, a metal plate front cover 2 is positioned on almost the entire front surface of the armor door. As shown in FIG. 2, the attachment to the base body 1 is carried out by leaving a space 8 formed by the L-shaped bent edge 7 on the inside of the upper and lower edges so that it is in close contact with the front surface of the base body 1, and also attaching the above-mentioned latching groove 3 and the enlarged end portion. In other words, when the base body 1 rotates at the joint portion, the influence of the rotational force is not transmitted to the front cover 2, and the front cover 2 is fitted and attached. . Therefore, the latching grooves 3 and latching protrusions 5 formed on the base 1 of the present invention are, in principle, formed over the entire length of the base 1, and when connecting, the latching grooves 3 of one base are connected to the latching protrusions 5 of the other base. The stop ridge 5 is inserted through the side end opening, and the latching spring 5 is inserted.
The latching grooves 3 of the other base members are fitted from the sides to connect them one after another. Each base 1 connected in this way
The front cover 2 is fitted onto the front surface of the slats A, and an armor door is assembled by connecting the unit slats A.

The above-mentioned shutter of the present invention is constructed by combining the unit slat A with the base 1 made of synthetic resin and the front cover 2 made of metal plate, so it is better than one made only of synthetic resin. In particular, the strength of the front side of the armor door has been increased, making it less susceptible to stains and damage.Furthermore, since the cover is positioned over the entire front side, leaving a small gap to prevent contact noise, it has a flame-resistant effect and is expected to prevent the spread of fire. Furthermore, the front surface has a clear gloss, so even if you apply paint of the desired color, the color will be smooth. In addition, the connection of each slat is through contact between the synthetic resin surfaces, and the metal plate covers located on the front are also kept in a non-contact state, which prevents unpleasant noises caused by contact between the slats when opening and closing the armor door. Completely preventable and L
The space created by the folded edges can also be expected to attenuate the sound caused by collisions between the shutters and other objects. In addition, in this case, the base 1 is made into a cylindrical box with a space inside to prevent deformation of the base 1 as much as possible, which not only increases the connection strength between the bases 1... This has the advantage that the front cover 2 is not adversely affected by warping or the like due to deformation of the base body.

Furthermore, the base body can be easily and mass-produced by integral molding of synthetic resin, and the front cover can be easily processed by simply bending a metal strip to the specified dimensions, and they can be easily attached without the need for other fixing means. In addition, the connection of each unit slat, that is, the connection structure of the base body, can be easily connected using the latching grooves 3 and latching protrusions 5 that are integrally formed in advance on each base body, unlike the conventional structure. There is no need to separately prepare a connecting member, which not only facilitates configuration and assembly but also greatly contributes to cost reduction.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, and is a perspective view of the base body and front cover in an exploded state, and FIG. 2 is a longitudinal cross-sectional view of a main part showing the shutter in an assembled state. A... Unit slat, 1... Base, 1'... Cylindrical box, 2... Front cover, 3... Latching groove, 4...
...Opening, 5...Latching protrusion, 6...Tip enlarged part, 7
...L-shaped bent edge, 8...Space part.

Claims (1)

[Claims for Utility Model Registration] A cylindrical box body 1' having a space inside, the upper edge of which is provided with a locking groove 3 with an open top surface 4, and the lower edge of which is connected to another adjacent base body. A synthetic resin base 1 having a hanging groove 3 on the upper edge and a protrusion 5 having a bulge 6 at the tip that can be fitted and locked, and a base made of synthetic resin 1, which covers the front surface of the box body 1' and extends vertically, respectively. It is a cover in which L-shaped bent edges 7, 7 are connected inwardly to the upper and lower edges of a horizontally long strip having a height that can be projected, and the vertical sides 7' of the inner ends of the bent edges are connected to each other.
7' The distance l between the tips is set so that it can be tightly fitted to the upper and lower edges of the box body 1', and the box body 1' is fitted onto the front surface of the base body 1, and the enlarged tip portion 6 is fitted into the locking groove 3 of the other base body 1. When the upper and lower covers are connected together, a small gap m is left between the lower end of the upper cover and the upper end of the lower cover to maintain a non-contact state, so that the front surface of the base 1 is not exposed. A front cover 2 made of a metal plate with an L-shaped bent edge 7 having a vertical side 7' and a height l' as shown in FIG.