Roseless trim for architectural hardware

摘要

A roseless trim for a mortise or tubular lock includes through bolts on a bolt circle of less than one inch (25.4 mm). Spindle hubs with a curved slot allow at least one of the through bolts to pass through the spindle hubs. A tubular lock embodiment uses arms with a cutout. The arms function as through bolts when screws attach the arms to mounting plates on opposite sides of the door. Each handle is attached to a corresponding handle base with a bushing. The handle base and small diameter bolt circle cooperate to provide the appearance that the handle extends directly into the door without a rose, escutcheon or any other attachment structure at the base of the handle.

主权项

1. A spindle hub comprising:
a spindle hub body having an outside perimeter shaped to retract a latchbolt of a mortise lock when the spindle hub is rotated; the spindle hub body including a central opening shaped to non-rotatably engage a spindle extending into the central opening, the central opening defining a rotational axis for the spindle hub body; and the spindle hub body further including a second opening comprising a curved slot that is substantially offset from the rotational axis of the spindle hub body and having a pair of through bolts passing through the curved slot, the pair of through bolts not interfering with rotation of the spindle hub body.