公开(公告)号：US3728605A

公开(公告)日：1973-04-17

申请号：US3728605D

申请日：1971-08-26

Applicant: CHAMBERLAIN MFG CORP

Inventor： PURTILO D

IPC: E05F15/00 ,  E05F15/16 ,  H02P1/00

CPC classification number: E05F15/41 ,  E05F15/684 ,  E05Y2201/646 ,  E05Y2800/00 ,  E05Y2900/106

Abstract: An overhead control for raising and lowering garage doors and other cyclically operated devices which utilizes a unidirectional electric motor which drives an endless chain in only one direction. A follower rides on a rail and is coupled to the endless chain by a gear which engages the chain on one side so as to move the follower in a first direction. When the follower reaches the end of the rail, the gear of the follower rotates 180* so as to engage the opposite side of the chain and thus move the follower in the opposite direction. The tension may be adjusted so that a door will stop or reverse when it meets resistance sufficiently firm to shift the gear of the follower.

Abstract translation: 用于提升和降低车库门和其他循环操作装置的顶置控制装置，其利用单向电动机，其仅在一个方向上驱动环形链。 跟随者骑在轨道上并且通过齿轮联接到环形链条，该齿轮在一侧与链条接合，以沿着第一方向移动从动件。 当跟随器到达轨道的端部时，从动件的齿轮旋转180°以与链条的相对侧接合，从而沿相反方向移动从动件。 可以调整张力，使得当门抵抗足够坚固以阻止从动件的齿轮移动时，门将停止或反向。