| 摘要 |
<p>#CMT# #/CMT# The part i.e. toothed driving wheel (1), has multiple fixed and rigid teeth (7) and elastically deformable teeth including curve shaped elastic spring plates (8), where each plate is provided with an engaging flank (9). Distance (12) measured on a pitch circle (13) of the part between the flank of the plate and a homologous flank (10) that is placed opposite to the flank (9), of the two adjacent rigid teeth (7), is less than distance (14) measured on the circle between the flank (9) and the flank (10) of other two adjacent teeth (7). #CMT#USE : #/CMT# Toothed movable part e.g. wheel such as driving wheel, pinion such as driven pinion, and rack, for compensating backlash in a gear assembly (all claimed) of a timepiece i.e. wrist watch. #CMT#ADVANTAGE : #/CMT# The configuration of the part permits the elastic plates to have large dimensions such as thickness and length, thus increasing force and better deformability of the plates, and hence compensating large backlash in a gear assembly so that the assembly is less sensitive to variations of the distance between the part and a driven pinion, and high torque transmitted between the part and the pinion is ensured while ensuring aesthetic appearance of the teeth and the part. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial plane view of a backlash-compensating gear assembly in a neutral position. 1 : Toothed driving wheel 7 : Fixed and rigid teeth 8 : Curve shaped elastic spring plates 9 : Engaging flank 10 : Homologous flank 12, 14 : Distances 13 : Pitch circle.</p> |
