公开(公告)号：US5193647A

公开(公告)日：1993-03-16

申请号：US856290

申请日：1992-03-23

Applicant: James A. O'Brien, II

Inventor： James A. O'Brien, II

IPC: E05F15/10 ,  E05F1/10 ,  E05F15/12 ,  F03G1/00

CPC classification number: F03G1/00 ,  E05F1/105 ,  E05F1/1253 ,  E05F15/63 ,  E05F5/00 ,  E05F15/619 ,  E05Y2201/21 ,  E05Y2201/234 ,  E05Y2201/25 ,  E05Y2201/41 ,  E05Y2201/474 ,  E05Y2201/722 ,  E05Y2400/302 ,  E05Y2400/514 ,  E05Y2800/11 ,  E05Y2800/113 ,  E05Y2900/132 ,  Y10T16/27 ,  Y10T16/293 ,  Y10T74/18808

Abstract: A device for controlling swinging doors utilizing an externally powered motor to compress a spring during door opening to store energy in the spring. The motor is not used to open the door, but only to compress the spring, thereby utilizing a minimum amount of electrical energy and allowing for a very easy opening of the door. The motor acts as a generator during the closing of the door with generated electrical energy fed back to the motor to retard rotation of the rotor, providing a brake on the closing movement of the door. The feedback circuitry includes a switch for varying the braking during the final degrees of closing movement as well as a variable setting device allowing control of braking force.

公开(公告)号：US4937913A

公开(公告)日：1990-07-03

申请号：US272122

申请日：1988-11-16

Applicant: Dietrich Jentsch

Inventor： Dietrich Jentsch

IPC: E05F3/10 ,  E05F3/12

CPC classification number: E05F3/102 ,  E05F3/12 ,  E05Y2201/20 ,  E05Y2201/234 ,  E05Y2201/254 ,  E05Y2201/458 ,  E05Y2800/22 ,  E05Y2900/132 ,  Y10S16/09 ,  Y10T16/276 ,  Y10T16/2788

Abstract: A door closer wherein a housing defines a fluid-containing space and rotatably supports a shaft which is articulately connected with a pivotable door panel. A piston in the housing divides the space into a chamber and a compartment and has a toothed rack which mates with a pinion on the shaft so that the piston moves in the housing in response to rotation of the shaft as a result of pivoting of the door panel and vice versa. One or more springs in the chamber bias the piston in a direction to pivot the door panel toward closed position. A channel in the housing establishes communication between the chamber and the compartment during an initial stage of movement of the door panel from closed position at which time the piston moves in a direction to reduce the volume of the chamber. A bypass in the piston provides a path for the flow of fluid from the chamber into the compartment during a following stage of pivoting of the door panel toward open position, and the cross-sectional area of such path increases gradually in a direction from the chamber toward the compartment. The bypass can be provided in the peripheral surface of the piston or in the peripheral surface of the body of a check valve which is installed in the piston and serves to permit the fluid to flow from the compartment into the chamber during pivoting of the door panel toward closed position.

Abstract translation: 一种闭门器，其中壳体限定含流体的空间并且可旋转地支撑与可枢转门板铰接地连接的轴。 壳体中的活塞将空间分成腔室和隔室，并且具有齿条，其与轴上的小齿轮配合，使得活塞响应于轴的旋转而移动在壳体中，这是由于门的枢转 面板，反之亦然。 腔室中的一个或多个弹簧使活塞沿使门板向关闭位置转动的方向偏压。 壳体中的通道在门板从关闭位置移动的初始阶段期间在腔室和隔室之间形成连通，此时活塞在减小腔室的方向上移动。 活塞中的旁路提供了在门板向开启位置枢转的后续阶段期间流体从腔室流入隔室的路径，并且这种路径的横截面面积在从腔室的方向上逐渐增加 朝向隔间。 旁路可以设置在活塞的外周表面或安装在活塞中的止回阀的主体的外周表面中，并且用于在门板的枢转期间允许流体从隔室流动到室中 向关闭位置。

公开(公告)号：US4872285A

公开(公告)日：1989-10-10

申请号：US201226

申请日：1988-06-02

Applicant: Horst Appelmann

Inventor： Horst Appelmann

IPC: E05D15/02 ,  E05F15/10 ,  E05F15/12 ,  E06B3/90

CPC classification number: E05D15/02 ,  E05F15/608 ,  E06B3/90 ,  E05F15/614 ,  E05Y2201/234 ,  E05Y2800/11 ,  E05Y2900/132

Abstract: This invention relates to a quarter point return mechanism for a manually driven revolving door. Revolving door leaves extending outwardly from a shaft are partially enclosed between opposed curved sidewalls. The return mechanism has a number of elements including an actuator, a rack arranged to be linearedly displaced by the actuator, and a pinion engaging the rack and being rotatable in opposite directions. The pinion is rotatably connected to the central shaft of the door. When the pinion is rotated in one direction, rotation is transmitted to the shaft. When the pinion is rotated in the opposite direction, the rotation is not transmitted to the shaft. Also included is a circumferential displacement sensor which operates the actuator when the outer ends of the door leaves are in a position circumferentially displaced from the sidewalls. The return mechanism returns the door leaves to a rest position in which the door leaves are in contact with the curved sidewalls. In an alternate embodiment the rack and pinion combination is replaced by a direct connection of the actuator to a one-way clutch. The clutch is then connected to the shaft.

Abstract translation: 本发明涉及一种手动旋转门的四分之一点返回机构。 从轴向外延伸的旋转门叶片部分地封闭在相对的弯曲侧壁之间。 返回机构具有许多元件，包括致动器，布置成由致动器线性位移的齿条和与齿条接合并能够沿相反方向旋转的小齿轮。 小齿轮可旋转地连接到门的中心轴。 当小齿轮沿一个方向旋转时，旋转被传递到轴。 当小齿轮沿相反方向旋转时，旋转不会传递到轴。 还包括一个圆周位移传感器，当门扇的外端位于从侧壁周向移位的位置时，操作致动器。 返回机构将门扇返回到门离开与弯曲侧壁接触的静止位置。 在替代实施例中，齿条和小齿轮组合由致动器直接连接到单向离合器来代替。 然后将离合器连接到轴。