JPS6183790U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a front view of the window as seen from outside, Fig. 3A is a sectional view of another embodiment, and Fig. 3B is a sectional view of another embodiment of the window. FIG. 4 is a sectional view of a portion of an auxiliary frame member of a further different embodiment, and FIG. 5 is a block diagram showing the state of an operation experiment of the check valve. 1: Inlet, 2: Exhaust port, 3: Blower, 6: Space, 7: Blind, 8: Upper frame, 9: Lower frame, 1
1: Auxiliary member, 17: Outer wall, 19: Downward passage.

Claims (1)

[Scope of utility model registration request] In double-glazed windows in which two pieces of glass, one inside and one outside, are attached to a frame member provided at the window opening and a space is provided between both glasses, an inlet for indoor air to flow into the space is placed on the indoor side of the frame member. An exhaust port is formed on the outside of the member room for exhausting the air that has passed through the space to the outside, and at least a certain section above the exhaust port is a downward passage through which the exhausted air flows downward, and the downward passage A check valve that is swingable and closes the downward passage during operation is attached to the outdoor wall that constitutes the outdoor side, and a protrusion that supports the check valve by protruding its tip into the downward passage is attached to the outer wall. 1. A window having an exhaust function, characterized in that a check valve and an outer wall protrude to form an air chamber, and an air hole is formed in a portion of the outer wall located in the air chamber.