Also called tenjou aratameguchi 天井改口. Lit.
roof structure inspecting entrance. A trapdoor built into a ceiling to enter the
loft or attic to examine the underside of the roof framing and sheathing or to
locate leaks. A fine trapdoor that is cleverly made to look like part of the ceiling
can be found in the Shoin 書院 at Kanchi-in Kyakuden 観智院客殿 (Guest Hall, 1587), in Kyoto. |