| 摘要 |
<p>PROBLEM TO BE SOLVED: To pull up a bag with a caster without forcing a user into an unreasonable posture, and without holding the bag by hand when ascending the stairs. SOLUTION: This bag 10 with the caster has a stairs ascending board 30 rotatable between a housing position almost parallel to an arm 14 and an operation position forming a prescribed angle from a horizontal plane with the vicinity of the intersection of the arm 14 and a base 18 as a fulcrum. This board 30 has a position fixing member 46 for fixing the board in the operation position and a contact member 38 for contacting with an edge part of the stairs. A wheel 16 and the contact member 38 are arranged so that a line passing through a surface of the contact member 38 contacts with the outer periphery of the wheel 16.</p> |
