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    Braking apparatus for door closer
    141.
    发明授权
    Braking apparatus for door closer 失效
    闭门器制动装置

    公开(公告)号：US4825503A

    公开(公告)日：1989-05-02

    申请号：US118924

    申请日：1987-11-10

    Applicant: Miyoshi Shiramasa ,  Katsuhiko Okano

    Inventor： Miyoshi Shiramasa ,  Katsuhiko Okano

    IPC: E05F3/14 ,  E05F3/06

    CPC classification number: E05F3/14 ,  E05Y2201/21 ,  E05Y2201/254 ,  E05Y2201/266 ,  E05Y2900/132 ,  Y10T16/2766 ,  Y10T16/5995 ,  Y10T16/61

    Abstract: An improved door closer which prevents overly rapid closing due to an external force, such as wind pressure, being exerted on the door. A pair of oil holes are formed communicating with a first pressure chamber and a non-pressure chamber formed in the main cylinder of the closer. A slide valve is disposed in a communicating hole communicating with the oil holes and extending generally perpendicular to the cylinder. A head portion and a braking valve portion are formed on the valve rod of the slide valve at positions corresponding to the oil holes. An elastic member urges the slide valve in the direction opposite to the normal flow direction of the operating oil when the door is closing. An adjusting screw controls the position of the slide valve.

    Abstract translation: 一种改进的门关闭器，其防止由于外部力（例如风压）而被过度快速地关闭，施加在门上。 一对油孔与形成在靠近的主缸中的第一压力室和非压力室形成连通。 滑阀设置在与油孔连通并且大致垂直于气缸延伸的连通孔中。 在与油孔对应的位置处，在滑阀的阀杆上形成头部和制动阀部。 当门关闭时，弹性构件沿与操作油的正常流动方向相反的方向推动滑阀。 调节螺丝控制滑阀的位置。

    Oil filled rotary damper having a symmetrically shaped flexible membrane
    143.
    发明授权
    Oil filled rotary damper having a symmetrically shaped flexible membrane 失效
    具有对称形状的柔性膜的充油旋转阻尼器

    公开(公告)号：US4614004A

    公开(公告)日：1986-09-30

    申请号：US667235

    申请日：1984-11-01

    Applicant: Tsutomu Oshida

    Inventor： Tsutomu Oshida

    IPC: E05F3/14 ,  F16F9/12 ,  F16F9/52 ,  E05F5/02

    CPC classification number: F16F9/12 ,  E05F3/14 ,  F16F9/52 ,  E05Y2201/21 ,  E05Y2201/254 ,  E05Y2201/266 ,  E05Y2800/00 ,  Y10T16/61

    Abstract: An oil type damper for braking and absorbing the opening-closing motion of a lid in a cassette tape recorder, video recorder or the like is improved by incorporating therein a flexible membrane formed in a structure symmetrical with respect to the obverse and reverse sides thereof, interposed between a housing and a braking disk, and adapted to absorb thermal expansion of oil and produce a sealing effect and, at the same time, causing the shaft projected from the braking disk for supporting the flexible membrane in place to contain a flared base radially diverged downwardly. Since the flexible membrane has a structure symmetrical with respect to the obverse and reverse sides thereof, the possibility of incorrect assembly of the oil type damper is minimized and the operational efficiency of damper production is increased without sacrificing sealing effect.

    Abstract translation: 用于制造和吸收盒式磁带录像机，录像机等中的盖子的打开 - 关闭运动的油型阻尼器通过在其中结合有形成为相对于其正面和反面对称的结构的柔性膜来改进， 插入在壳体和制动盘之间，并且适于吸收油的热膨胀并产生密封效果，并且同时使得从制动盘突出的轴用于将柔性膜支撑在适当位置以容纳扩张的基部 向下分流 由于柔性膜具有相对于其正面和反面对称的结构，所以油型阻尼器的错误组装的可能性最小化，并且在不牺牲密封效果的情况下提高阻尼器生产的操作效率。

    Sealed rotary motion damper
    144.
    发明授权
    Sealed rotary motion damper 失效
    密封旋转运动阻尼器

    公开(公告)号：US4513473A

    公开(公告)日：1985-04-30

    申请号：US562061

    申请日：1983-12-16

    Applicant: Nobuaki Omata

    Inventor： Nobuaki Omata

    IPC: E05F3/14 ,  F16F9/12 ,  G11B15/675 ,  E05F5/02

    CPC classification number: G11B15/67507 ,  E05F3/14 ,  F16F9/12 ,  E05Y2201/21 ,  E05Y2201/254 ,  E05Y2201/266 ,  E05Y2800/00 ,  Y10T16/61

    Abstract: An oil type damper comprises a rotor provided with a toothed wheel and a boss, a base seat provided with a tubular part adapted to be fitted to the boss of the rotor and a shaft adapted to be inserted into the interior of the rotor, and an oil sealer element adapted to be set in position in the interior of the rotor in an unrotatable state relative to the shaft of the base seat. The open edge of the sealer element is folded back and held in fast contact with the inner surface of the boss of the rotor to provide prevention of leakage of the oil interposed between the rotor and the sealer element even when the oil is thermally expanded.

    Abstract translation: 油型阻尼器包括设有齿轮和凸台的转子，设置有适于装配到转子的凸台的管状部分的基座和适于插入转子内部的轴， 油封元件适于相对于基座的轴以不可旋转的状态设置在转子内部的适当位置。 密封元件的开口边缘被折回并保持与转子的凸台的内表面快速接触，从而防止插入在转子和密封件之间的油泄漏，即使当油被热膨胀时。

    Hydraulic door closer with adjustable time delay dampener
    145.
    发明授权
    Hydraulic door closer with adjustable time delay dampener 失效
    液压门关闭器带可调延时阻尼器

    公开(公告)号：US4048694A

    公开(公告)日：1977-09-20

    申请号：US662368

    申请日：1976-03-01

    Applicant: Donald John Newman ,  Gerald Francis Dunphy

    Inventor： Donald John Newman ,  Gerald Francis Dunphy

    IPC: E05F3/12 ,  E05F3/10

    CPC classification number: E05F3/12 ,  E05Y2201/20 ,  E05Y2201/254 ,  E05Y2900/132 ,  Y10S16/21 ,  Y10T16/2766

    Abstract: A door closer of the kind having a piston slidably mounted in a bore containing hydraulic fluid and dividing that bore into damping and reservoir chambers. Drive means is connected to the piston to respond to sliding movement of the piston and translate that into rotary motion for driving door connected linkage. The piston is spring influenced in a direction towards the damping chamber, and fluid pressurized by the piston tending to move in that direction bleeds from the damping chamber through an escape port which is controlled by a biased and movable closure member. Normally the closure member is biased into a rest position in which it blocks passage of fluid through the escape port, but it responds to fluid pressure in the damping chamber to move into an open position at which fluid can bleed through the escape port. The time taken for the closure member to travel from the rest to the open position is a delay time during which the piston is freed from external influence so as to be movable in a door closing direction, but is temporarily restrained against such movement by the closure member. That delay time can be varied by adjusting the rest position of the closure member and/or by adjusting the rate of fluid flow from the escape port to the reservoir chamber.

    Abstract translation: 具有可滑动地安装在包含液压流体的孔并将该孔分成阻尼和储存室的活塞的类似的门。 驱动装置连接到活塞以响应活塞的滑动运动并将其转化为用于驱动门连接的联动装置的旋转运动。 活塞在朝向阻尼室的方向上受到弹簧的影响，并且由该方向移动的活塞加压的流体通过由偏压和可移动的关闭构件控制的排出口从阻尼室流出。 通常，封闭构件被偏压到静止位置，在该位置阻止流体通过排出口，但是其响应阻尼室中的流体压力以移动到打开位置，在该位置，流体可以通过逸出口渗出。 关闭构件从其余部件行进到打开位置所花费的时间是一个延迟时间，在该延迟时间内，活塞不受外部影响，从而可以在关闭方向上移动，而是暂时限制由闭合件 会员。 该延迟时间可以通过调节关闭构件的静止位置和/或通过调节从排出口到储存室的流体流量的速率来改变。

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