| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a staircase type movable stands capable of reducing vibrations of stair floors. <P>SOLUTION: A close state maintaining portion 20 comprises a hook retainer fitting 22 which is provided in the front lower portion of an upper stair floor 10, and a clamp 30 which is provided in the upper portion of a rear panel 24. The clamp 30 comprises a handle lever 26 which is turnably and pivotally supported by a first rotating shaft 26a, and a hook fitting 28 which is pivotally supported so as to be turnable on a second rotating shaft 26b provided in the handle lever 26. When the handle lever 26 is turned to a locking position in a state in which the hook fitting 28 is hooked on a retainer portion 22a of the hook retainer fitting 22, the upper and lower stair floors 10 are attracted to each other. Consequently, the upper and lower stair floors 10 are brought into strong contact with each other via the close state maintaining portion 20 and a laterally-disposed abutting portion 40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
