| 摘要 |
#CMT# #/CMT# The spectacles (1) have a resilient return unit including two parallel branches (8, 9) present at an end. Two openings are located in front of one another adapted to be assembled by an extension (14) of a tenon (4) on which the openings are formed. A cam (13) is carried out at an end of a third branch (3) of the spectacles and moved in rotation around a hinge pin, where the hinge pin is placed at an end of the tenon such that the cam operates in compression of a U-shaped blade (7) between a stable opening position (P1) and a stable closing position by the resilient return unit. #CMT#USE : #/CMT# Spectacles. #CMT#ADVANTAGE : #/CMT# The hinge pin is placed at the end of the tenon such that the cam operates in compression of the U-shaped blade between the stable opening position and the stable closing position by the resilient return unit, so that the articulation of the resilient return unit with the branch can be enhanced in an easy manner so as to ensure easy dismount of the branches during the replacement of a spring in simple and effective manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a portion of a branch of spectacles. P1 : Stable opening position 1 : Spectacles 3, 8, 9 : Branches 4 : Tenon 7 : U-shaped blade 13 : Cam 14 : Extension. |
