Patent · US Active

Linkage for a door actuator

US12385309B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

DORMAKABA DEUTSCHLAND GMBH · DE

Inventors

Thomas Salutzki · Ennepetal, DE
Sabine Wiemann · Ennepetal, DE
Alexander Hellwig · Ennepetal, DE

Key dates

Filing date	Sep 7, 2020
Grant date	Aug 12, 2025
Priority date	—
Expiry date	Oct 3, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/132
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A linkage for force transmission between a driven axle of a door actuator and an assembly surface, includes a hinge, a fastening arrangement designed for fastening the hinge to the assembly surface, in particular a door, frame or wall, wherein an assembly axis is defined perpendicularly to the assembly surface, and a lever arrangement which is fastened to the hinge so as to be rotatable about a hinge axis perpendicular to the assembly axis and which is designed for rotationally-fixed connection to the driven axle of the door actuator. The linkage is designed to detach through the weight of the door actuator falling down in the event of a fire and/or wherein the linkage includes a thermally activatable trigger element that is designed to detach the linkage in the event of thermal activation triggered by a fire.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.