| 摘要 |
An inner area of a framing or framework is divided into a plurality of openings by metal frame bars arranged in a lattice pattern. Particular openings are closed by surface glass panes fitted therein, and the remaining openings by metal plates fitted therein. Spacers 10 softer than the surface glass panes and frame bars and capable of transmitting external forces through the frame bars and surface glass panes are mounted in the openings, between end surfaces extending along sides of the surface glass panes and the frame bars. The spacers not adhering to the surface glass panes are spaced from corners of the surface glass panes.
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