Centrifugal force actuated door safety mechanism
OwnerAtaul Haqinventor
Life of this patent
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Abstract
A mechanism for preventing injury to a person's (especially a child's) hand when a fast-closing door slams against a door frame or jamb. The mechanism comprises a casing which is positioned within a hollowed out portion of the door. The casing is constructed with an opening disposed along the edge of the door. A metallic pendulum is housed and suspended within the casing such that the action of centrifugal force imparted by the fast-closing door will cause the pendulum to swing outwardly through the opening. A raised metal body is attached to the side molding of the door jamb and functions to engage the outwardly swung pendulum to prevent the door from completely closing.
Claims6
A door slam safety mechanism comprising:
- a door panel, said door panel having a side edge, an upper end and a lower end;
- a door jamb, said door jamb forming a frame around and adjacent to said door panel and adapted to abut said door panel when said door panel is in a closed position;
- a raised body attached to said door jamb;
- a hollowed-out portion formed in the side edge of said door panel;
- a casing disposed in said hollowed-out portion, said casing having a top wall, a bottom wall, side walls defining a space therebetween, a rear wall and an open front face;
- a pivot pin positioned in said casing and spanning the space between the side walls;
- a nylon sheath disposed around said pivot pin;
- a weighted pendulum, said pendulum being housed in said casing and disposed on said nylon sheath and pivot pin for swinging movement thereon;
- said weighted pendulum having a triangular configuration having a front leg, a rear leg, and a base connecting said front leg to said rear leg, said base having a first side and a second side;
- a first ridge disposed on said first side of said base and a second ridge disposed on said second side of said base;
- and
- a web member, said web member positioned at a central portion of said pendulum wherein said web member extends from said front leg to said rear leg.
Dependencies are inferred from the claim text.