Door hinge
OwnerKabil Parkinventor
Life of this patent
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Abstract
A door hinge having the is capable of not only automatically closing the door but also controlling the closing speed. The hinge includes a first hinge part, a second hinge part, a hinge-shaft on which the two hinge parts are pivotably mounted, a spring for returning the second hinge part to a determind position in relation to the first hinge part, and a buffer assembly arranged between the two hinge parts.
Claims6
A door hinge comprising, a first hinge part, a second hinge part, a hinge shaft, said first and second parts being pivotally mounted on said hinge shaft, a torsion spring disposed in surrounding relationship to said shaft and having two ends, one of said ends engaging said first hinge part, the other of said ends engaging said second hinge part, buffer means including a cylinder filled with working fluid and a piston movably mounted in said cylinder, a piston rod connected to said piston and having an outer end extending outwardly of one end of said cylinder, said first hinge part defining a recess, said cylinder having an opposite end pivotally mounted on said first hinge part so that the cylinder can swing into and out of said recess, said second hinge part having an extended part pivotally connected to the outer end of said piston rod, said first hinge part having a slot formed therein for receiving said extended part when the hinge is in closed position.
Dependencies are inferred from the claim text.