| 摘要 |
A hatch assembly with a removable cover comprises a generally rectangular frame member, a pair of two piece hinge assemblies and a mating cover which is rotatably attached to the frame member by the hinge assemblies. Each of the two piece hinge assemblies include a first hinge element which has a generally J-shaped pivot member and a second hinge element having a longitudinally extending generally cylindrical recess and a longitudinally extending slot along one side thereof. The generally cylindrical recess and slot are adapted to receive the J-shaped pivot member therethrough and into the recess when the cover is in a first position as for example 120° from its closed position. When the cover is rotated toward closure, the J-shaped pivot member is retained within the recess so that the cover can be rotated between about 110° and 0°. Then when rotated to 120° the cover can be readily removed from the frame.
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