公开(公告)号：US20020111242A1

公开(公告)日：2002-08-15

申请号：US10121535

申请日：2002-04-12

Applicant: OVERHEAD DOOR CORPORATION

Inventor： Robert E. Balli ,  Charles E. Delaney

IPC: E06B009/70 ,  F16H057/08

CPC classification number: E06B9/74 ,  E05F15/668 ,  E05Y2201/72 ,  E05Y2800/234 ,  E05Y2900/00 ,  E05Y2900/106 ,  E06B2009/6818

Abstract: A door operator unit for opening and closing an upward acting or horizontally moveable door includes a drive motor connected to a speed reduction differential planetary gear drive mechanism having a drive unit output shaft for connection to further door drive mechanism. An electromagnetic brake is interposed the motor output shaft and the planetary gear drive mechanism and is releasable when energized to allow rotation of the motor output shaft and the drive unit output shaft. A first ring gear of the planetary gear drive mechanism is normally held stationary by a release block and is operable in response to disengagement of the release block to permit rotation of the drive unit output shaft when the brake in engaged to allow manual opening and closing of the door by way of an auxiliary or manual drive shaft connected through a gear train to the ring gear. The ring gear release block is connected to actuating mechanism for alternately holding the release block disengaged from the first ring gear and allowing the release block to reengage the first ring gear in response to successive actuations. A torque limiting clutch may be interposed the operator unit output shaft and a second ring gear of the differential planetary gear drive mechanism.

Abstract translation: 用于打开和关闭向上或水平可移动的门的门操作单元包括连接到减速差速行星齿轮传动机构的驱动马达，该驱动马达具有用于连接到另外的门驱动机构的驱动单元输出轴。 电磁制动器插入电动机输出轴和行星齿轮驱动机构，并且在通电时可释放以允许电动机输出轴和驱动单元输出轴的旋转。 行星齿轮传动机构的第一齿圈通常由释放块保持静止，并且当接合的制动器允许手动打开和关闭时响应于释放块的分离而可操作以允许驱动单元输出轴的旋转 门通过辅助或手动驱动轴通过齿轮系连接到齿圈。 齿圈释放块连接到致动机构，用于交替地保持释放块与第一齿圈脱离啮合，并允许释放块响应于连续的致动重新接合第一齿圈。 扭矩限制离合器可以插入操作单元输出轴和差速行星齿轮传动机构的第二齿圈。