To provide an exhibition model which allows the visual recognition of the operating condition of an aseizmic locking device for regulating the opening of a door when more than specified vibrations are imparted to furniture.

A model 10 is constituted by having a case 12 of an approximately rectangular paprallelepiped shape which is transparent at right and left flanks 19 and 20, a leg part 14 which supports these case 12 and the aseizmic locking device 16 which is disposed on the inside wall surface 15 of the case 12. The leg part 14 comprises a base plate 31 of an approximately rectangular shape and coil springs 32 disposed between the base plate 31 and the bottom wall surface 21 of the case 12. The case 12 is made vibratable relative to the base plate 31 by such constitution and the aseizmic locking device 16 may be actuated by the vibration thereof. The operating condition of the aseizmic locking device 16 is visually recognizable from outside of the case 12 as the right and left flanks 19 and 20 of the case 12 are transparent.