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    Door closer with back checking means
    43.
    发明授权
    Door closer with back checking means 失效
    靠近后门检查手段

    公开(公告)号：US5050268A

    公开(公告)日：1991-09-24

    申请号：US655220

    申请日：1991-02-12

    Applicant: George F. Toledo

    Inventor： George F. Toledo

    IPC: E05F3/10

    CPC classification number: E05F3/104 ,  E05Y2201/20 ,  E05Y2201/254 ,  E05Y2900/132 ,  Y10T16/2769 ,  Y10T16/2788 ,  Y10T16/628

    Abstract: An improved door closer is provided which has a back checking arrangement including a loosely held resilient cushion bar which is engaged by a metallic shield abutting sliding cam plates during a final few degrees of opening of a door to provide an increasing resistance against further opening of the door. The shield preferably engages the cushion bar approximately 4.degree. prior to a normal full open position of the door. Selective thickness of the cushion bar provides either a 90.degree. full open position of the door or a 150.degree. full open position of the door without additional adjustment.

    Abstract translation: 提供了一种改进的门关闭器，其具有背面检查装置，其包括松动地保持的弹性缓冲条，该弹性缓冲杆在门的最后几度打开期间与金属屏蔽件抵靠滑动凸轮板接合，以提供增加的阻力以进一步打开门 门。 在门的正常完全打开位置之前，护罩优选地约4度地抵靠缓冲杆。 缓冲杆的选择厚度可提供门的90°全开位置或门的150°全开位置，无需额外调整。

    Valve for adjusting the closing speed of a door closer
    44.
    发明授权
    Valve for adjusting the closing speed of a door closer 失效
    用于调节闭门器关闭速度的阀

    公开(公告)号：US4425939A

    公开(公告)日：1984-01-17

    申请号：US328509

    申请日：1981-12-08

    Applicant: Mario Marinoni ,  Mirko Marinoni

    Inventor： Mario Marinoni ,  Mirko Marinoni

    IPC: E05F3/12 ,  F16K15/14

    CPC classification number: E05F3/12 ,  E05Y2201/20 ,  E05Y2201/254 ,  E05Y2900/132 ,  E05Y2900/146 ,  Y10T137/7879 ,  Y10T137/86734 ,  Y10T137/87394 ,  Y10T137/87547

    Abstract: A valve for adjusting the closing speed of a door closer includes a generally cylindrical valve member having a tubular portion and a solid portion. The valve member is received with sliding contact in a blind-end bore of a valve body. The wall of the tubular portion of the valve member has an opening which is positionable into communication with an inlet conduit provided in the valve body in such a way that an axial adjustment of the valve member changes the cross-sectional area of the passage created between the inlet conduit and the opening. A body of elastic foam material with closed-wall cells is arranged in the interior of the tubular portion and is placed across the opening. In operation, fluid flowing through the valve applies pressure to the body and presses it away from the opening, so that the fluid can flow between the wall of the tubular portion and the body of elastic foam material without creating a hissing sound.

    Abstract translation: 用于调节门关闭器的关闭速度的阀包括具有管状部分和固体部分的大致圆柱形的阀构件。 阀构件在阀体的盲端孔中滑动接触。 阀构件的管状部分的壁具有开口，该开口可定位成与设置在阀体中的入口导管连通，使得阀构件的轴向调节改变了阀构件之间产生的通道的横截面积， 入口管道和开口。 具有封闭壁细胞的弹性泡沫材料体布置在管状部分的内部并且横跨开口放置。 在操作中，流过阀门的流体对主体施加压力并将其从开口压出，使得流体可以在管状部分的壁和弹性泡沫材料体之间流动，而不产生嘶嘶声。

    Automatic door closer constructed for releasably holding a door in a predetermined partly open position
    45.
    发明授权
    Automatic door closer constructed for releasably holding a door in a predetermined partly open position 失效
    自动门关闭器被构造用于将门可释放地保持在预定的部分打开位置

    公开(公告)号：US4234996A

    公开(公告)日：1980-11-25

    申请号：US954558

    申请日：1978-10-25

    Applicant: Dietrich Jentsch

    Inventor： Dietrich Jentsch

    IPC: E05F3/10 ,  E05F3/12 ,  E05F3/22

    CPC classification number: E05F3/102 ,  E05F3/223 ,  E05Y2201/20 ,  E05Y2201/254 ,  E05Y2900/132 ,  Y10T16/2766 ,  Y10T16/2788 ,  Y10T16/2804

    Abstract: An automatic door closer constructed for releasably holding a door in a predetermined partly open position mainly comprises a piston arranged in a cylinder bore of a housing and operatively connected to a closer shaft mounted in the housing turnable about an axis substantially normal to that of the cylindrical bore so that the piston will be reciprocated in the bore during turning of a door connected to the closer shaft. The piston divides the bore in the housing in two compartments filled with fluid and a coil compression spring in one of the compartments biases the piston to an end position corresponding to the closed position of the door. The piston is provided with two passages therethrough, in one of which a one-way valve is arranged permitting flow of fluid only from the one compartment into the other during movement of the piston in door opening direction. The other passage is closed when the door reaches a predetermined partly open position preventing thereby fluid flow from the other compartment into the one compartment so that the door is held in this partly open position. The elements for closing the other passage comprise a valve member of a holding valve biased by a spring to a closed position so that the door may be moved in closing direction from the partly open position in which it is held only by application of an outer force applied thereto overcoming the biasing force of the spring acting on the valve member.

    Abstract translation: 构造用于将门可释放地保持在预定的部分打开位置的自动门关闭件主要包括布置在壳体的气缸孔中的活塞，并且可操作地连接到安装在壳体中的更靠近轴的活塞，该轴可基本上垂直于圆柱形 使得在连接到较近轴的门的转动期间活塞将在孔中往复运动。 活塞将壳体中的孔分成两个充满流体的隔室，其中一个隔室中的线圈压缩弹簧将活塞偏压到对应于门关闭位置的终点位置。 活塞设置有两个通道，其中一个单向阀设置成允许流体在活塞沿门打开方向运动期间仅从一个隔间流入另一个室。 当门到达预定的部分打开位置时，另一个通道关闭，从而防止流体从另一个隔间流入一个隔间，使得门保持在该部分打开位置。 用于关闭另一通道的元件包括由弹簧偏压到关闭位置的保持阀的阀构件，使得门可以在关闭方向上从仅通过施加外力而保持的部分打开位置移动 施加到其上克服作用在阀构件上的弹簧的偏置力。

    Door closing device
    46.
    发明授权
    Door closing device 失效
    关门装置

    公开(公告)号：US4073033A

    公开(公告)日：1978-02-14

    申请号：US658126

    申请日：1976-02-13

    Applicant: Sven-Olof Lexnas

    Inventor： Sven-Olof Lexnas

    IPC: E05F3/10 ,  E05F3/12

    CPC classification number: E05F3/102 ,  E05F3/12 ,  E05Y2201/20 ,  E05Y2201/254 ,  E05Y2900/132 ,  Y10S16/09 ,  Y10T16/2766

    Abstract: A door closing device of the type having a piston and cylinder is described, the piston being movable within the cylinder under the bias of a spring and being connected to an arm mechanism which is arranged to transmit movement of the piston into pivoting movement of a door and vice versa, the device including a number of by-pass channels arranged to bring portions of chambers separated by the piston into communication with one another, whereby to limit the speed of flow of a dampening medium contained in the cylinder and passing through the channels as the piston is reciprocated.

    Abstract translation: 描述了具有活塞和气缸的类型的关闭装置，活塞可在弹簧的偏压下在气缸内移动并且连接到臂机构，臂机构被布置成将活塞的运动传递到门的枢转运动 反之亦然，所述装置包括多个旁路通道，其被布置成使由活塞分隔开的室的一部分彼此连通，由此限制容纳在气缸中并通过通道的润湿介质的流动速度 当活塞往复运动时。

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