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    • 12. 发明授权
    • Ladder assembly
    • 梯子组装
    • US4139078A
    • 1979-02-13
    • US846354
    • 1977-10-28
    • John R. Keller
    • John R. Keller
    • B60R3/02E06C5/02E06C5/04
    • E06C5/02B60R3/02
    • A ladder assembly, primarily for use on trucks and other vehicles, has a ladder slidable between a retracted, stored position in a ladder storage assembly, and an extended, operative position in which the ladder projects from an extrance of the storage assembly. First and second retainers are provided for retaining the ladder relative to the storage assembly in the stored and operative positions, respectively, and the ladder has opposed lateral projections slidable along guides formed by parallel side members having U-shaped cross-sections the side members being spaced apart to receive the ladder therebetween and forming opposite sides of the storage assembly.
    • 主要用于卡车和其他车辆的梯子组件具有梯子,其可在梯形物存储组件中的缩回的存储位置和延伸的操作位置之间滑动,在该位置梯子从存储组件的外部伸出。 提供第一和第二保持器,用于将梯子相对于存储组件分别保持在存储和操作位置,并且梯子具有相对的侧向突起,该侧向突起可沿着具有U形横截面的平行侧构件形成, 间隔开以在其间接纳梯子并形成存储组件的相对侧。