Structure e.g. trestle, elements locking visualizing device for use during fixation of vehicle wheel, has spring lock washer interposed between two support washers, where one of support washers is directed towards colored visualizing washer

摘要

#CMT# #/CMT# The device has a spring lock washer (20) e.g. contracted spring lock washer, constituting a mechanical door of the device and interposed between two rigid support washers (8, 9). The washer (8) has a plane lower face (10) and a tapered upper face, and directed towards a visualizing washer (7), which is colored. The washer (8) extends from a passage hole (12) of a screw (5) upto a peripheral end (13) of the visualizing washer to constitute a sliding ramp (11) to facilitate return of the washer (8) towards an initial position during unlocking. #CMT#USE : #/CMT# Device for visualizing locking of two elements of a structure e.g. jib crane or trestle, during fixation of a vehicle wheel. #CMT#ADVANTAGE : #/CMT# The colored visualizing washer permits to improve the visualization of locking of two elements of the structure. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an exploded sectional view of a visualizing device before mounting of elements. 5 : Screw 7 : Visualizing washer 8, 9 : Rigid support washers 10 : Plane lower face 11 : Sliding ramp 12 : Passage hole 13 : Peripheral end 20 : Spring lock washer.