公开(公告)号：EP0725877A1

公开(公告)日：1996-08-14

申请号：EP95900487.0

申请日：1994-10-28

申请人： SARGENT & GREENLEAF,INC.

发明人： CLARK, Michael R. ,  LAINHART, Gregory C. ,  MURPHREE, Gary R. ,  REMENICKY, Joseph M. ,  BAIR, David R. ,  MASCARO, Christian F.

IPC分类号： E05B49 ,  G07C9

CPC分类号： E05B47/0688 ,  E05B47/0012 ,  E05B2047/0062 ,  G07C9/00698 ,  G07C9/00912 ,  Y10T70/7085 ,  Y10T70/7254 ,  Y10T70/7418 ,  Y10T70/7424 ,  Y10T292/869

摘要： A user of a self-powered electronic combination lock rotates an outer dial (101) to cause generators to generate energy for storage in a capacitor bank. The user then rotates an inner dial (102) to cause a microprocessor to sequentially display combination of numbers, and presses inner dial (102) to select a displayed number. A microcontroller determines direction and extent of motion of the inner dial by receiving signals derived from Wiegand sensors placed in proximity to a magnetized disc which rotates integrally with the inner dial, and controls the display of numerals on an LCD display accordingly. When the microcontroller determines that a correct combination has been entered, it activates a motor (201) which moves a motor cam (205) to act directly on a locking lever (213) so that the locking lever can engage a drive cam (218) integrally linked with the inner dial, to allow the inner dial to withdraw the lock's bolt.