FIXTURE

PROBLEM TO BE SOLVED: To improve airtightness of a double fixture by preventing a clearance from occurring between a top face and a door head of a meeting stile.SOLUTION: A fixture comprises: a frame body, which is installed at a building opening; a slave sash, which is openably and closably supported by the frame body; and a master sash, which is openably and closably supported by the frame body and has a meeting piece that extends on the slave sash side on an open surface side ot the meeting stile. A synthetic resin header cap is mounted on top edges of the meeting stiles of the master sash and the slave sash. A fin piece, which butts against the header cap of the slave sash, is formed at a door end stile side end of the header cap of the master sash.SELECTED DRAWING: Figure 9 【課題】両開き建具において、召合せ框の上面と上枠との間に隙間が生じることを防止して、気密性を向上させる。【解決手段】建物開口部に設置される枠体と、枠体に対して開閉自在に支持される子障子と、枠体に対して開閉自在に支持され、召合框の開放面側に子障子側に延設される召合わせ片を有する親障子とを備え、親障子及び子障子の召合せ框の上端にはそれぞれ合成樹脂製の小口キャップが装着されており、親障子の小口キャップの戸先框側端部に子障子の小口キャップに当接するヒレ片が設けられている。【選択図】図９