| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a safety handrail easily grasped by the aged, children or the like with weak grasping power and hardly slipping. <P>SOLUTION: A large number of nonslip recesses 2 are formed in two rows on the outer periphery of a cylindrical wooden handrail 1, and the depth of each recess is set to 7-15% to the diameter of the handrail. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
