| 摘要 |
A separable hinge composed of two hinge components, each having a leaf and at least one tubular knuckle. The knuckles are interleaved when the two hinge components are assembled. The leaves provide an attachment structure. A first hinge component has at least one first knuckle having a sub-assembly composed of pair of spring-loaded balls resident in a first bore thereof. The ends of the first bore are configured to abuttingly interact with the balls so as to allow the balls to protrude only partly from the first bore even as spring biasing tends to cause the balls to exit the tube. A second hinge component has at least two second knuckles, one located at each end of a first knuckle. The ends of the second knuckles that face a first knuckle are provided with a second bore having a predetermined cross-section which accepts an exactly predetermined portion of the protruding portions of the balls. Consequently, the balls protrude into the second bore of the second hinge components a precise amount which determines, in concert with the biasing spring force on the balls, the magnitude of the shear force which is necessary to cause the first and second hinge components to be separated from each other. Since the ball and biasing spring sub-assembly does not fly apart when the first knuckle separates from the second knuckle, it is a simple matter to reassemble the separable hinge thereafter.
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