| 摘要 |
<p>PURPOSE:To reduce the size of a pedestal so as to save the space by forming the lower end portion of a leg member in a spherical projecting surface, forming the upper bearing surface of a pedestal having the central portion in form of a spherical recess surface like a dish, and forming the bottom portion of the pedestal in a smooth surface. CONSTITUTION:Even if the floor surface 4 is subjected to vibration by an earthquake or the like, the leg member 2 of an electronic apparatus 1 and a pedestal 3 on the floor surface 4 make nutation so that the electronic apparatus 1 is not influenced by the vibration, and when the vibration is stopped by the spherical central portion 32 of the bearing surface 31 of the pedestal 3, the leg member 2 returns to the central portion 32 not to cause any difference in position. When the leg member 2 is moved to the edge of the pedestal 3 by an earthquake with large amplitude, because the bottom surface portion 33 of the pedestal 3 is formed in a smooth surface, the pedestal 3 makes nutation on the floor surface 4 not to check the relative movement of the electronic apparatus 1 and the floor surface 4, whereby overturning of the electronic apparatus can be checked. Since the radius R1 of curvature of the lower end portion 21 of the leg member 2 is set smaller than that R2 of the central portion 32, when the leg member 2 passes the central portion 32, it make smooth nutation to enhance an earthquake-proof effect.</p> |
