Checker-equipped door hinge
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United States of America Patent
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Apr 19, 2005
Grant Date -
Dec 9, 2004
app pub date -
Jun 6, 2003
filing date -
Jun 5, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A checker-equipped door hinge is provided in which a first notch and a second notch are respectively provided on the front surface and the reverse surface of a fixed base of a second hinge arm, and a torsion spring is formed from a single length of spring wire rod so as to have a torsion shaft portion supported in the first notch, a fixed end portion supported in the second notch, a free end portion rotatably supporting a roller, a U-shaped fixed arm portion providing a connection between the fixed end portion and one end of the torsion shaft portion, and a U-shaped movable arm portion providing a connection between the other end of the torsion shaft portion and the free end portion. This provides a checker-equipped door hinge that has a simple structure for mounting the torsion spring in the second hinge arm, together with good ease of mounting.
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