| 摘要 |
#CMT# #/CMT# The device has a cam (3) secured to a cam wheel (4) and kinematically connected with a power wheel. A lever (6) is articulated on a pivot (6a), and comprises a tracer (7) held in contact with the cam by a lever spring (8). A toothed rack (9) is drivingly connected to a drive wheel (11). An indicating member i.e. disk, is connected with the drive wheel. The rack is engaged with an input of a reverser system (10). An output of the reverser system is engaged with the drive wheel. The reverser system is arranged to transmit rotational movement to the drive wheel during jump of the lever. #CMT#USE : #/CMT# Jumping display device for moving an indicating member i.e. disk, of a timepiece (claimed) in instantaneous manner according to determined jumps. #CMT#ADVANTAGE : #/CMT# The device enables driving large size disks, and provides reduced inertia to improve stabilization of the indicating member after each jump. The device provides advanced step of the indicating member while maintaining large range of limited amplitude of movement of the lever to an extent. The device allows a positioning jumper to operate freely at end of jump to define the position of the indicating member after each jump in an accurate manner, thus obtaining excellent stabilization of the indicating member for each position when the member provides certain inertia. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a top perspective view of a display device. 1a : Power wheel 3 : Cam 4 : Cam wheel 6 : Lever 6a : Pivot 7 : Tracer 8 : Lever spring 9 : Toothed rack 10 : Reverser system 11 : Drive wheel #CMT#METALLURGY : #/CMT# The disk is made of material such as steel, aluminum, metal alloy, ceramic material, synthetic material or polymer. |
