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US 2007/0163728 A1Published application
Blind lift cord locking structure
OwnerMing Nieninventor
Life of this patent
Estimating the term…
Abstract
A venetian blind lift cord locking structure to fasten one end of the lift cord, is comprised of a plate having a hole; a cut in the plate to one end of the hole, and end surfaces formed on both sides of the cut being tightly close to each other so that once the pull applied to the lift cord exceeds a specific value, the lift cord is released to prevent from accident due to trip or tangle by the lift cord.
Claims2
1-6. (canceled)
A blind lift rod locking structure comprising:
- a locking plate having a hole for one end of a lift cord to be tied in, said hole being in form of a triangle up side down, said plate having a cut at a lower end of said hole, two end surfaces respectively formed on both sides of said cut where said end of said lift cord is tied and fixed in said hole;
- a fixation plate connected to said locking plate and having a slot;
- and
- a seat engaged with said hole of said locking plate for fixing said fixation plate to head rail;
- whereby when a pulling force applied to said lift cord is greater than a predetermined value, said cut is forced to open up to release said lift cord from said locking plate thereby preventing accident due to a tangle of said lift cord.
2 more elements
Dependencies are inferred from the claim text.