| 摘要 |
PROBLEM TO BE SOLVED: To provide a sash that can have sound insulating property with simple constitution while having high design property.SOLUTION: Frame bodies 4 have: hollow parts 23 of hollow cross section; and recessed opening grooves 24 on the inner peripheral surfaces, respectively. A glass body 5 consists of: first glass 5a on the indoor side; and second glass 5b on the outdoor side. A bottom wall 24a of the opening groove 24 is provided with a communicating hole 28 serving for communication between a clearance region 5c between the first glass and second glass, and the hollow part 23. An extension member 29 extending the communicating hole 28 from the hollow part 23 toward the clearance region 5c between the first glass and second glass is mounted to the bottom wall 24a. The extension member 29 has a fixed surface part 29c stuck to the opening groove 24, and two facing surface parts 29d rising perpendicularly from the fixed surface part and facing each other with the width of the communicating hole. The first glass 5a is held by the indoor side facing surface part 29d and an indoor wall 24a of the opening groove, and the second glass 5b is held by the outdoor side facing surface part 29d and an outdoor wall 24b of the opening groove. |
