US 12,709,943 B2Granted

Chain operation system

AssigneeRollease Acmeda, Inc.

InventorAlirio Guerra

Life of this patent

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Abstract

A chain operation system for a chain driven blind assembly that includes a guide member configured to guide a beaded chain loop and comprising first and second channels for guiding first and second sides of the chain loop, respectively. A handle is slidably mounted to the guide member and slides along the longitudinal axis of the guide member in a first direction to engage and drive the chain loop, and in a second direction to release the chain loop. The handle comprises a chain driver selectively rotatable between a first position, whereby the driver drivingly engages one or more beads on the second side of the chain loop, and a second position, whereby the driver drivingly engages one or more beads on the first side of the chain loop. The system also includes a switching member configured to rotate the driver between the first and second positions.

Claims20

Dependent claims

A chain operation system for a chain driven blind assembly, the system comprising;

a guide member configured to guide a beaded chain loop of the chain driven blind assembly, the guide member extending along a longitudinal axis of the guide member and comprising a first channel for guiding a first side of the chain loop, and a second channel for guiding a second side of the chain loop;
and
a handle slidably mounted to the guide member, the handle being configured to slide along the longitudinal axis of the guide member in a first direction to engage and drive the chain loop, and in a second direction to release the chain loop, the handle comprising:
a chain driver selectively rotatable between a first position, whereby a first portion of the chain driver drivingly engages one or more beads on the second side of the chain loop, and a second position, whereby a second portion of the chain driver drivingly engages one or more beads on the first side of the chain loop, the second portion being adjacent to the first portion;
and
a switching member operable by a user and configured to rotate the chain driver between the first and second positions.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/440,394Filed 13 Feb 2024
Priority: AU 202390036015 Feb 2023
Published: US 2024/0271485 A115 Aug 2024
Granted: 18 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

E06B 9/326
Operating, guiding, or securing devices therefor: details of cords, e.g. buckles, drawing knobs
E06B 9/78
Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor:…
E06B 2009/785
For direct manual operation, e.g. by tassels, by handles: by belts, straps, bands, tapes, cords, tassels
E06B
Fixed or movable closures for openings in buildings, vehicles, fences or like