US 2020/0399948 A1Published application

Device for releasing and resetting a fire and smoke barrier

OwnerChung Hsien HSIEHinventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

The invention relates to a device for releasing and resetting a fire and smoke barrier. In a normal use state, a clutch member is held by an electromagnetic attraction unit, so that a push rod ejecting module cannot be actuated, and a door operator is controlled by a clutch module thereof. Upon power failure, for example upon an accident, the clutch member is released by the electromagnetic attraction unit, and a barrier release member is activated by the push rod ejecting module so as to shut the fire and smoke barrier. Upon power restoration, the clutch member is attracted and held by the electromagnetic attraction unit, and the push rod ejecting module is reset by a push rod resetting module. At the same time, the barrier release member is also reset.

Claims10

Dependent claims

A device for releasing and resetting a fire and smoke barrier, which is used for actuating a barrier release member, the device comprising:

an electromagnetic clutch module, comprising an electromagnetic attraction unit and a clutch member, the electromagnetic attraction unit being provided to attract and hold the clutch member;
a push rod ejecting module, coupled to the clutch member and storing an elastic potential energy sufficient to push the barrier release member;
a push rod resetting module, coupled to the clutch member and provided to reset the push rod ejecting module;
wherein when the electromagnetic attraction unit is electrically deenergized, the clutch member is released by the electromagnetic attraction unit, and the barrier release member is pushed by the push rod ejecting module with aid of the elastic potential energy;
when the push rod resetting module and the electromagnetic clutch module are electrically energized, the clutch member is attracted and held by the electromagnetic attraction unit, and the push rod ejecting module is reset by the push rod resetting module.

2 more elements

A device for releasing and resetting of a fire and smoke barrier, which is used for actuating a barrier release member, the device comprising:

a push rod ejecting module, storing an elastic potential energy sufficient to push the barrier release member;
an electromagnetic holding module, coupled to the push rod ejecting module;
and
a push rod resetting module, coupled to the push rod ejecting module;
wherein when the electromagnetic holding module is electrically deenergized, the barrier release member is pushed by the push rod ejecting module with aide of the elastic potential energy;
when the push rod resetting module and the electromagnetic holding module are electrically energized, the push rod ejecting module is reset by the push rod resetting module;
the push rod ejecting module is attracted and held by the electromagnetic holding module.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/728,038Filed 27 Dec 2019
Priority: TW 10812191124 Jun 2019
Published: 24 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

E05F 15/72
With automatic actuation: responsive to emergency conditions, e.g. fire
E05F 15/635
For horizontally-sliding wings: operated by push-pull mechanisms, e.g. flexible or rigid rack-and-pinion arrangements
E05Y 2201/264
Type of motion, e.g. braking: linear
E05Y 2201/462
Magnets: electromagnets

Family

US 11,505,985 B2Related patent
US 2020/0399948 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key