DEVICE FOR BLOCKING AN ARTICULATION AXIS IN THE HOUSING OF A CROWN MEMBER, SUCH AS A GRID OR A BUFFER, IN A ROAD PORTHOLE

摘要

#CMT# #/CMT# The device has a transversal retaining pin (9) removably fixed in a hole (10) of a bridging element (2) transversal to a housing (8) of an articulation axle (7) to axially retain the axle in the housing against return force of a helicoidal compression spring. The helicoidal compression spring is prestressed in the housing between a bottom (8a) of the housing and an end of the axle. #CMT# : #/CMT# An independent claim is also included for a method of installing a bridging element. #CMT#USE : #/CMT# Device for maintaining a cylindrical articulation axle in a housing of a bridging element such as grid or baffle plate (claimed) or lid, of a manhole in public road, where the bridging element is mounted on a support frame by the axle. #CMT#ADVANTAGE : #/CMT# The retaining pin permits to maintain the articulation axle in the housing of the bridging element in an effective and captive manner, thus avoiding loss of the axle during arrangement of the bridging element on the support frame by the axle. The device has a simple structure and is inexpensive. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an enlarged sectional view of a device maintaining an articulation axle in a bridging element. 2 : Bridging element 7 : Articulation axle 8 : Housing 8a : Bottom 9 : Transversal retaining pin 10 : Hole.