Runner guide for a sliding elevator door
AssigneeInventio AG
InventorRichard H. Pilsbury
Life of this patent
Estimating the term…
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.
Claims7
In a runner guide for a sliding elevator door, the runner guide having a generally longitudinally extending guide rail and a roller, the roller including a non-metallic and relatively hard elastic material running surface insert and the guide rail having a cross-sectional shape providing a running surface portion adapted to engage the insert and guide the roller for rolling movement along the guide rail, the improvement comprising:
- means attached to the guide rail and positioned adjacent at least one end of a path of travel of the roller for engaging the roller when closing said door and moving the running surface insert out of engagement with the running surface portion of the guide rail whereby relatively low noise levels are generated during rolling movement of the roller with the insert engaged with the guide rail and flattening of the insert is prevented when said door is closed due to movement of the insert out of engagement with the guide rail by said means for engaging and moving.
A runner guide for a sliding elevator door comprising:
- a generally longitudinally extending guide rail and a pair of rollers, each said roller including a non-metallic and relatively hard elastic material running surface insert and said guide rail having a cross-sectional shape providing a running surface portion to engage said inserts and guide said rollers for rolling movement along said guide rail, and means attached to said guide rail and positioned adjacent at least one end of a path of travel of said rollers for engaging said rollers when closing said door and moving said inserts out of engagement with said guide rail running surface portion whereby relatively low noise levels are generated during rolling movement of the roller with the insert engaged with the guide rail and flattening of the insert is prevented when said door is closed due to movement of the insert out of engagement with the guide rail by said means for engaging and moving.
A sliding door for closing an opening comprising:
- a door panel;
- a generally longitudinally extending guide rail;
- a pair of rollers attached to said door panel, each said roller including a non-metallic and relatively hard elastic material running surface insert and said guide rail having a cross-sectional shape providing a running surface portion adapted to engage said inserts and guide said rollers for rolling movement along said guide rail;
- and means attached to said guide rail and positioned adjacent at least one end of a path of travel of said rollers for engaging said rollers when closing said door and moving said inserts out of engagement with said guide rail running surface portion whereby relatively low noise levels are generated during rolling movement of the roller with the insert engaged with the guide rail and flattening of the insert is prevented when said door is closed due to movement of the insert out of engagement with the guide rail by said means for engaging and moving.
Dependencies are inferred from the claim text.