Runner guide for a sliding elevator door

Details Runner guide for a sliding elevator door Runner guide for a sliding elevator door

1992-03-12

1992-11-24

Larson, Lowell A.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Panel hangers, travelers and/or tracks

Guide brackets

16 91, 49226, 49409, 1601961, 187 56, E05D 1506, B66B 1300

Patent

active

051651424

ABSTRACT:
A runner guide for an elevator door includes a ramp member at an end of travel position along a guide rail for engaging a roller attached to the door and running on the guide rail. The roller has a rim disc which engages a surface on the ramp member to move an insert in the roller out of engagement with the rail thereby relieving the load on and preventing flattening of the running surface on the insert when the door is at rest. The insert is formed of a non-metallic and hard elastic material to reduce running noise. The door is supported by a pair of such rollers, each having a pair of rim discs, and one roller is asymmetric with one of the rim discs being of a smaller diameter to move past the ramp member associated with the other roller without contact during opening and closing of the door.

REFERENCES:
patent: 2611920 (1952-09-01), Borden
patent: 3509665 (1970-05-01), Bartlett et al.
patent: 3611637 (1971-10-01), Saino
patent: 4593793 (1986-06-01), Salmon
patent: 4619075 (1986-10-01), Wiles
patent: 4639970 (1987-02-01), Adams

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