Cordless operating safety blind
AssigneeJae-Suk KWAK
InventorsJae-Suk KWAK, Woo-Jin Kwak
Life of this patent
Estimating the term…
Abstract
The present invention relates to a safety blind that operates without a cord. More specifically, there is no danger of safety accidents because a lifting cord inserted into a fabric tube of a leather cord is not exposed to the outside, the lifting and tilting operation of an entire slat can be easily and simply performed by operating a lower slat, and a driving unit can be applied to Venetian blinds, roll blinds, and various blinds.
Claims10
A cordless operating safety blind, comprising ladder cords in which conical fabric tubes having insertion holes formed through centers of tops of insertion grooves, in which slats are inserted, and fabric bodies having tilting cords at both ends are formed in several layers, and lift cords are inserted in the insertion holes of the fabric tubes not to be exposed to the outside.
A cordless operating safety blind, comprising:
- ladder cords in which conical fabric tubes having insertion holes formed through centers of tops of insertion grooves, in which slats are inserted, and fabric bodies having tilting cords at both ends are formed in several layers, and lift cords are inserted in the insertion holes;
- a rotary body having a central shaft fastened to the ladder cords;
- a driving unit in which a rotary gear disposed in a groove of a body and an elastic gear in which a hook of a plate spring is disposed are engaged with each other in the form of a bevel gear and a restoring force of the plate spring is changed in direction at 90 degrees by the bevel gear;
- a fixing pin fixing a force of the plate spring applied in an early stage and disposed on an outer side of the rotary gear to stop the blind at desired positions;
- a cover having holding protrusions preventing movement of the rotary gear, the elastic gear, and the plate spring;
- and
- a central shaft rotatably disposed in shaft holes of the rotary body and the rotary gear and end caps disposed at both ends of the central shaft.
Dependencies are inferred from the claim text.