| 摘要 |
<p>The device detects and signals a change of more than a prescribed amount in the rate of movement of an object. The major elements forming the device include the following. A housing is secured to the object. This housing has a first contact area formed on the surface area in the interior thereof. A sphere is movably contained by a resiliently deformable confinement within the interior of the housing. The confinement is interposed between the sphere and the surface area forming the interior of the housing. The confinement is deformable toward the interior surface when the sphere moves within the confinement in response to a change in the rate of movement of the object. A second contact area is formed on the surface of the confinement in juxtaposition to the first contact area on the interior of the housing. When the sphere deforms the confinement sufficiently, in response to a change in the rate of movement of the object of more than a predetermined amount, the first and the second contact areas are brought together to complete a circuit therethrough. Upon closing of the contacts, appropriate circuits indicate that the change of more than a prescribed amount has taken place in the rate of movement of the object.</p> |
