| 摘要 |
A method to horizontally support ladder (3) with box (4) against vertical surface (17), with ladder footed (5) on horizontal ground (6). Box substantially has front side (32) open, facing ladder. Ladder top end (2) supports against box uppermost portions (36), ladder lower upper portion (94) supports against box bottom wall front portions (13), and box back side (11b) supports substantially flat against the vertical surface. Box top wall (10) and bottom wall (12) are both substantially perpendicular to the box back side. Ladder leans at a substantial angle, substantially at 4-up-to-to-1-out angle (U to O angle). Box on ladder can: provide two platforms to place supplies laddertop; distant ladder from the vertical surface; and improve ladder utility and user safety.
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