| 摘要 |
The invention is a hinge assembly made of two parts, specifically for an accelerometer. The first part is adapted to be attached, either directly or through a bracket, to an inertial acceleration sensor. The second part is adapted to be rigidly attached to an apparatus whose acceleration is to be measured. The two parts are connected by a flexible hinge. The invention resides in the placement of the hinge and in the attaching means for the second part of the hinge frame as well as in the method for fabricating the novel attaching means. The hinge is not attached to the center of the opposing edges of the first and second parts of the hinge frame. It is attached to one end of those opposing sides at a first region of the second part of the hinge frame. The hinge line is generally parallel to those opposing sides. The second part of the hinge frame is clamped only in a second region away from the hinge. It is rigidly clamped between two tilted stops which are usually welded to the second part along a weld line that is generally perpendicular to the hinge line. The tilted stops extend into the first region of the second part with a predetermined small gap, depending upon the tilt, in that region to allow slight deflection of the first region of the hinge frame through the resilience of that region, but with the stops snubbing extensive excursions of the region. Thus, the motion of the region under extreme acceleration or shock absorbs enough energy to protect the hinge. The first region is thick enough and rigid enough that it does not deflect significantly when received accelerations are within the design range of the accelerometer. The method of the invention uses struts to tip a stop relative to the hinge frame or the hinge frame relative to a stop and to hold the members in their relative tilted positions while they are fastened into place. The strut may be part of a spacer.
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