Opening-closing plate for rolling door

Abstract

A shutter panel (10) in which respective longer sides of slats (12) made of synthetic resin are connected through hinge mechanisms to be freely bendable manner, wherein the hinge mechanisms include one hinge member and another hinge member. Each hinge member has a connecting groove that is opened outwardly. By fitting and coupling the longer sides of the slats into the connecting grooves respectively, smooth opening and closing of the shutter panel (10)can be performed because of decreasing warpage or irregularities in thickness of slats (12) or the hinge members and enabling smooth bending of respective slats (12) connected by the hinge mechanisms.

Description

technical field [0001] The invention relates to an opening and closing plate for a rolling shutter door. In particular, it relates to an opening and closing panel for a rolling door in which a plurality of slats are arranged in parallel and freely bent by hinges. Background technique [0002] Patent Publication No. 2000-292689 has previously been proposed as a rolling door for the opening of a processing room where a switch is mounted on a working machine or the entrance of a building. The structure of the rolling door as an example thereof is shown in FIG. 12 . [0003] In this component, the opening and closing plate 10 for the rolling shutter door is composed of a plurality of slats 12, 12 connected side by side and freely bent, and its left and right ends keep sliding freely in the guide rails 19, 19. One end edge (edge ​​portion on one side) protrudes (embeds) in the inner cylinder 16b of the annular section of the hinge member, and the other end edge protrudes in the ...

AI Technical Summary

Problems solved by technology

[0005] But, because above-mentioned prior art is integral molding, promptly above-mentioned lath 12 and inner cylinder 16b and outer cylinder 16a are integrally formed with synthetic resin material, when resin is cooled and hardened immediately after forming, above-mentioned integral molded parts are all cooled together. Contraction

Since the above-mentioned slats 12 and the shrinkage of each part of the inner cylinder 16b and the outer cylinder 16a are cumulative, the overall formed part is prone to dimensional errors and deformations, as well as thickness errors caused by different parts.

Due to the occurrence of deformation, thickness error, etc., the outer cylinder 16a and inner cylinder 16b of adjacent slats 12, 12 cannot be fitted in a coaxial state with high precision, and the inner cylinder 16b and outer cylinder 16a cannot be smoothly rotated relative to each other.

Therefore, the above-mentioned adjacent slats 12, 12 cannot freely bend each other, and the opening and closing plate 10 for the above-mentioned rolling door cannot be opened and closed smoothly, and there is such a problem.

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