Pivoting trapdoor balancing system for elevator machinery, has retaining element retaining trapdoor and mounted on guiding rail, where guiding rail has fixation units for fixing guiding rail to ground or to vertical wall

摘要

#CMT# #/CMT# The system has a counterweight displaceable along a displacement axis and connected by a cable (14) to a pivoting trapdoor, where the cable passes through a return pulley (15). The return pulley is fixed on a support unit i.e. inclined guiding rail, having the displacement axis. A retaining element (20) retains the trapdoor and is mounted on the guiding rail. The guiding rail has fixation units for fixing the guiding rail to the ground or to a vertical wall. #CMT#USE : #/CMT# System for balancing a pivoting trapdoor, which provides access to an elevator machinery. #CMT#ADVANTAGE : #/CMT# The balancing system is compact with simple design and is easily fixed to the ground near the trapdoor at low cost without disturbing activities of an operator. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a balancing system for balancing a pivoting trapdoor. 10 : Vertical hollow part 14 : Cable 15 : Return pulley 17 : Orifice 20 : Retaining element.