To provide a cylindrical filter for a pyrotechnic device which is good in adhesion to a housing.SOLUTION: A cylindrical filter 20 having: a first annular end surface 21; a second annular end surface 22 which is located at a position facing the first annular end surface in an axial direction; and a cylindrical wall surface between the first annular end surface and the second annular end surface. In this cylindrical filter 20, at least one of the annular end surface and the second annular end surface has a fragile part, the fragile part of the first annular end surface includes a first annular wall part 25 which is projected from the first annular end surface, and has a thickness less than a thickness of the first annular end surface. The fragile part of the second annular end surface includes a second annular wall part which is projected from the second annular end surface, and has a thickness less than a thickness of the second annular end surface.SELECTED DRAWING: Figure 3
【課題】ハウジングとの密着性が良い火工装置用の筒状フィルタの提供。【解決手段】第1環状端面21、前記第1環状端面と軸方向に対向する位置にある第2環状端面22、および第1環状端面と第2環状端面の間の筒状壁面を有している筒状フィルタ20であり、第1環状端面と第2環状端面の少なくとも一方が脆弱部を有しており、第1環状端面の脆弱部が、第1環状端面から突き出された、第1環状端面の厚さ未満の厚さを有する第1環状壁部25を含むものであり、第2環状端面の脆弱部が、第2環状端面から突き出された、第2環状端面の厚さ未満の厚さを有する第2環状壁部を含むものである筒状フィルタ20。【選択図】図3
CYLINDRICAL FILTER FOR PYROTECHNIC DEVICE, METHOD FOR MANUFACTURING CYLINDRICAL FILTER, PYROTECHNIC DEVICE WITH USE OF CYLINDRICAL FILTER
火工装置用の筒状フィルタ、前記筒状フィルタの製造方法、前記筒状フィルタを使用した火工装置
2019-09-19
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B01J Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie , CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY |
European Patent Office | 2021
|European Patent Office | 2019
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