| 摘要 |
<p>1. A spacer frame comprising section members (3) having an approximately U-shaped transverse section of stainless steel, usable in making fire-resistant multiple panes, in which the space between at least two sheets of silicate glass (1, 2) contains a gel, such as a gel containing salts and water, the open side of the section members being directed towards the space containing the gel and the section members being connected to each other by insertable angle pieces (10) of pressed sheet of approximately U-shaped cross-section which comprises three portions inclined at 45 degrees from each other, that is two insertable ends or branches and a central joining element, characterised in that the angle pieces (10) are of stainless steel, between the insertable ends or branches (11, 12) the lateral wings (11a) are provided with openings (15) in the angled regions, the parts of the lateral wings situated between the openings are displaced towards the exterior with formation of projections (13) without cutting out serving as abutments for the ends of the section members (3), and in at least one angle member (10) of the spacer frame there is provided in the shoulder (22) of the joining element (12) an opening (21) allowing introduction of gel.</p> |
