| 摘要 |
A hinge structure includes a knuckle having inner and outer surfaces, the inner surface being punched to protrude outwardly thereby forming a working surface defining a working region and a locking surface defining a locking region in spatial communication with the working region. The knuckle further has a slot axially extending through the inner and outer surfaces at the working region to provide resiliency thereof. A pivot shaft extends into the working region, and has a locking section and a working section. A roller unit is disposed within the locking region in such a manner to contact the shaft. When the locking section is aligned with the roller unit, the shaft is locked to the knuckle due to biasing action of the locking surface. When the working section is aligned with the roller unit, the shaft possesses a torque due to biasing action of the knuckle.
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