Patent ID: 6431322
Filing Date: 2002-08-13
Classification: B66B

Abstract:
A plunger guide for a telescopic jack in a hydraulic elevator, comprising:a crenelated guide rail comprising a top surface, first and second opposing side surfaces arranged substantially perpendicular to said top surface, and first and second flanged projections arranged on said first and second side surfaces, said first and second flanged projections being substantially parallel to said top surface and having first and second bottom surfaces facing away from said top surface; and a plunger guide support comprising a bracket assembly glidably arranged on said crenelated guide rail and a lateral segment connected to said bracket, said lateral segment being connectable to the telescopic jack for guiding the telescopic jack along said crenelated guide rail, said bracket including a first set of bearings arranged for gliding on said top surface, a second set of bearings comprising at least one bearing arranged for gliding along said first side surface and at least one bearing arranged for gliding along said second side surface, and a third set of bearings arranged for gliding on said first and second bottom surfaces of said first and second flanged projections.