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    • 4. 发明专利
    • Door closer
    • JP4773415B2
    • 2011-09-14
    • JP2007290814
    • 2007-11-08
    • 日東工器株式会社
    • 正志 岡田
    • E05F3/08E05F1/12
    • E05F1/1008E05F1/1016E05F3/08E05F3/20E05Y2201/638E05Y2900/132F16F9/16
    • A door closer of simple structure has a stationary shaft (10) and a cylindrical housing (20) secured to a door. The housing (20) has therein a nonrotatable piston (80), an inner communicating passage (83) with a check valve (84) that communicates between a high-pressure oil chamber (81) and a low-pressure oil chamber (82) at the opposite sides of the piston (80), an outer communicating passage (102 and 104) that passes oil from the high-pressure oil chamber (81) toward the low-pressure oil chamber (82) when the piston (80) is displaced from the low-pressure oil chamber (82) side toward the high-pressure oil chamber (81) side, a high-pressure side cam member (91), and a low-pressure side cam member (96). When the housing (20) is rotated by the door being opened, the high-pressure side cam member (91) pushes out the piston (80) from the high-pressure oil chamber (81) side toward the low-pressure oil chamber (82) side. When the door is rotated in a door-closing direction, the low-pressure side cam member (96) pushes out the piston (80) from the low-pressure oil chamber (82) side toward the high-pressure oil chamber (81) side.
    • 9. 发明专利
    • Door closer
    • 闭门器
    • JP2009114778A
    • 2009-05-28
    • JP2007290814
    • 2007-11-08
    • Nitto Kohki Co Ltd日東工器株式会社
    • OKADA MASASHI
    • E05F1/14E05F3/10
    • E05F1/1008E05F1/1016E05F3/08E05F3/20E05Y2201/638E05Y2900/132F16F9/16
    • PROBLEM TO BE SOLVED: To provide a double doors closer having a simple structure.
      SOLUTION: This double doors closer has a stationary shaft 10 and a cylindrical housing 20 fixed on the doors. The housing 20 incorporates a piston 80 being unable to rotate, an inner side communicating passage 83 with a check valve 84 for communicating a high pressure oil chamber 81 with a low pressure oil chamber 82 on both sides of the piston 80, outer side communicating passages 102, 104 for letting oil in the high pressure oil chamber 81 pass into a low pressure oil chamber 82 side when the piston 80 is displaced from the low pressure oil chamber 82 side to a high pressure oil chamber 81 side, a high pressure side cam member 91, and a low pressure side cam member 96. When the housing 20 is rotated by the doors to be opened, the high pressure side cam member 91 pushes out the piston 80 from the high pressure oil chamber 81 side to the low pressure oil chamber 82 side. When the doors are rotated in the direction of closing, the low pressure side cam member 96 pushes out the piston 80 from the low pressure oil chamber 82 side to the high pressure oil chamber 81 side.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供具有简单结构的双门关闭器。 解决方案:该双门关闭器具有固定轴10和固定在门上的圆柱形壳体20。 壳体20包括不能旋转的活塞80,内侧连通通道83具有用于使高压油室81与活塞80两侧的低压油室82连通的止回阀84,外侧连通通道 当活塞80从低压油室82侧移动到高压油室81侧时,使高压油室81内的油进入低压油室82侧的高压侧凸轮 构件91和低压侧凸轮构件96.当壳体20被打开的门旋转时,高压侧凸轮构件91将活塞80从高压油室81侧推出到低压油 室82侧。 当门沿关闭方向旋转时,低压侧凸轮构件96将活塞80从低压油室82侧推出到高压油室81侧。 版权所有(C)2009,JPO&INPIT