Back to results
US 6,112,461 AGranted
Safety gate for children
OwnerShu-Chen Chenginventor
Life of this patent
Estimating the term…
Abstract
A safety gate for a doorframe, which is able to prevent small children from going into a restricted or dangerous area, has a lock that requires two different and independent steps to proceed the unlock process. Furthermore, after the lock is unlocked, the user still needs to lift the plate body before the pivotal movement of the plate body with respect to the first side bar is possible.
Claims12
A safety gate for a doorway, the safety gate comprising a plate body (10);
- a base (20) detachably connected with the plate body (10);
- a first side bar (22) pivotally connected with the plate body (10) and securely connected with the base (20);
- a second side bar (24) oppositely and detachably connected with the plate body (10) with respect to the first side bar (22);
- and two pairs of adjusting devices (30) each respectively mounted on the first and the second side bars (22, 24) so as to securely connect the first and the second side bars (22, 24) to the doorframe;
- wherein each adjusting device (30) has a bolt (32) inserted into the first and the second side bars (22, 24) and a nut (34) threadingly connected with the bolt (32), wherein the improvements comprise:
- a lock having:
- a holding bar (12) having a first end (122) pivotally received in the plate body (10) and a second end (124);
- a hollow housing (13) pivotally receiving the second end (124) of the holding bar (12) and provided with a first stud (132), a second stud (134) intergrally formed on an inner face thereof;
- a linkage (14) connected with the second end (124) of the holding bar (12) to move up and down;
- and
- a lever (15) a first end of which engages with the linkage (14) and a second end of which is selectively and detachably limited by the second side bar (24).
8 more elements
Dependencies are inferred from the claim text.