Respect to the membrane valve, flat films in particular, there is provided a suction device, is made of a flexible material and permanent (1), a frame having an air opening somewhat smaller than the film present invention, and (2), Web one (3), whose shaft, holding openings of the retaining vessel and extends to the center of the membrane around the anchoring openings at least be connected to the retainer is disposed in the center of the air openings approximately frame provided located, and a pin, membrane, and located on the frame in a stationary state, or a short distance of it to the membrane as compared to the thickness of the film to form a head pin is widened, the head There is located on the membrane, and is larger than the diameter of the fixing opening, and, the diameter of the shaft (31) the free end of the shaft, the diameter of the shaft near the head (32), the diameter of the fixing opening on the membrane valve, which is characterized approximately equal to, that. [Selection] Figure本発明は、膜弁に関し、特に、吸気装置用であって、永続的に可撓性の材料でできている平面膜(1)と、膜よりいくぶん小さい空気開口を有するフレーム(2)と、フレームをほぼ空気開口の中央に配置される保持器に接続する少なくとも1本のウェブ(3)と、そのシャフトが、固定開口部を通しておよそ膜の中央に延伸し、かつ保持器内の保持開口部内に位置する、ピンと、を備え、膜が、静止状態でフレーム上にあり、そして、ピンが広げられてヘッドを形成し膜に対するそれの距離が膜の厚さと比較して短いかまたは、そのヘッドが膜の上にあり、および、ヘッド(32)の近くのシャフトの直径が、固定開口部の直径より大きく、および、シャフトの自由端(31)でのシャフトの直径が、固定開口部の直径にほぼ等しい、ことを特徴とする膜弁に関する。【選択図】
