Door hinge with automatic returning means

Details Door hinge with automatic returning means Door hinge with automatic returning means

1992-04-17

1993-04-27

Larson, Lowell A.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Checks and closers

Hinge

16319, 16303, 16307, 16297, E05F 508, E05C 1700

Patent

active

052050157

ABSTRACT:
A door hinge with automatic returning means composed of; a male hinge member (1), a female hinge member (2), an inner sleeve (3), a transmission rod (4), main spring (5), a driving element (6), a buffer spring (7) and a retainer (8), in which, the male and female hinge members will take an angle of rotation in anti-clockwise when the door is proceeding to its open position, and in turn to effect the driving element and transmission rod to rotate in synchronized operation respectively. When the movement for driving element is being effected through a helical motion of external/internal thread engagement, and with the restraint imposed onto this element by outer sleeve of female hinge member, this element will move upward to press the main spring to retract. When door is released by operator it also released the pressure on main spring, and this released pressure will push the driving element to move downward and in turn to rotate the transmission rod as well as the male hinge member in clockwise direction for an equivalent amount of angle unit the door returned to its closed position automatically.

REFERENCES:
patent: 583536 (1897-06-01), Masters
patent: 1134510 (1915-04-01), Busch
patent: 3537126 (1970-11-01), Nakanishi
patent: 4485522 (1984-12-01), Chen

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