公开(公告)号：EP0985106A1

公开(公告)日：2000-03-15

申请号：EP98921160.2

申请日：1998-05-12

Applicant: Overhead Door Corporation

Inventor： WHITE, James, A. ,  DRAGOMIR, Nicholas ,  STOTTSBERRY, James

IPC: F16H19/06 ,  E05F15/10 ,  B65H75/34

CPC classification number: E05F15/67 ,  E05F15/684 ,  E05Y2201/656 ,  E05Y2201/666 ,  E05Y2201/724 ,  E05Y2900/106

Abstract: A push-pull chain garage door operator system includes a drive module (20) and an elongated guide rail (22) for a push-pull chain (101) connected to a carriage assembly (28) mounted on the guide rail. The chain is engaged with a sprocket (138) mounted on a generally rectangular plate-like molded plastic support member (30) which includes a serpentine idle chain storage slot (100) formed therein. The support member is releasably connected to a stamped metal frame plate (34) for covering the storage slot and supporting the drive module. The bottom wall of the support member supports a right angle speed reduction drive unit (50) connected to a drive motor (46) retained in a cradle (54) formed by an integral boss (56) on the support member. The motor and a starting capacitor therefor are retained in respective cradle portions of the boss by a removable retaining strap (58). A control circuit board (64) is mounted on the underside of the support member and a two-part shroud (66, 82) for the operator mechanism is releasably secured to the frame plate.