| 摘要 |
#CMT# #/CMT# The mechanism has a set of cams constituted of snails and a minute cam (54) driven by a gear-train of a timepiece, and a set of gongs to vibrate under the action of a pin (46). A control device is activated by a user and arranged in a manner to trigger ringing for the pin striking a number of moves at current time. One of the snails is provided with periodicity of twelve hours and twelve bearings, and the other snail is provided with periodicity of an hour and presents six bearings. The minute cam is provided with periodicity of ten minutes, and presents ten bearings. #CMT#USE : #/CMT# Minute repeater ringing mechanism for watch movement of a timepiece i.e. lady wristwatch. #CMT#ADVANTAGE : #/CMT# The mechanism rings the tens and minutes other than the quarters and minutes, thus reducing the number of levels of each sector of cam units and making less sensitive setting of the mechanism. The mechanism is small in size and easily integrated into the wristwatch while facilitating the interpretation of information. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic perspective view of control units of hour and ten ringing and a minute unit. 46 : Pin 48 : Spring 54 : Minute cam 58 : Jumper 62 : Rack. |
