| 摘要 |
Designs for adapting a ladder rail so that accessories to the ladder can be quickly and securely mounted and released without using tools. Aspects of the invention include: (1) configurations of holes in ladder rails for receiving accessories for toolless attachment and release; (2) catches affixed to the rail to secure the accessory; (3) attachment bases permanently mounted to the ladder rail with structures for toolless attachment and release of accessories to the base; (4) catches affixed to the base to secure the accessory; (5) attachment structures on the accessory for toolless attachment and release of the accessory to a base or a ladder rail; and (6) catches affixed to the accessory to secure the accessory to a base or rail.
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