Retractable ladder assembly
AssigneeCook Manufacturing Corporation
InventorGregory D. Cook
Life of this patent
Estimating the term…
Abstract
A retractable ladder assembly for marine applications having a frame and a ladder having a pair of channel members pivotally connected to the frame and extendible there from in a vertical position and in a horizontal position. A plurality of rung members extend between the channel members, and channel extension members are slidably supported in the channel members. A pair of strut connectors have one end pivotally connected to the frame and the other end pivotally connected to the lower ends of the channel extension members. A power actuator is supported by the frame to pivot the channel members between a vertical position and a horizontal position, the channel extension members extending from the upper ends of the channel members in the vertical position and are contained in the channel members in the horizontal position.
Claims13
A retractable ladder assembly for extension from, and stowage under, a marine platform, the retractable ladder assembly comprising:
- a frame supportable under the marine platform;
- a ladder comprising;
- a pair of channel members pivotally connected to the frame and extendible there from in a vertical position and in a horizontal position,
- a plurality of rung members extending between the channel members;
- and
- at least one channel extension member slidably supported in the channel members;
- at least one strut connector having one end pivotally connected to the frame and the other end pivotally connected to the lower end of the channel extension member;
- and
- actuator means supported by the frame for pivoting the channel members between the vertical position and the horizontal position, the channel extension member extending from the upper end of the channel member in the vertical position and contained in the channel member in the horizontal position.
A retractable ladder assembly comprising:
- a frame;
- a ladder comprising:
- a first channel member;
- a second channel member;
- means for pivotally connecting the first and second channel members to the frame;
- a plurality of rung members extending between and supported by the first and second channel members;
- a pair of channel extension members, each of the channel extension members slidably supported in one of the first and second channel members;
- a pair of strut connectors having first and second ends, the first end of each strut connectors pivotally connected to the frame and the second end of each strut connectors pivotally connected to the lower end of one of the channel extension members;
- and
- actuator means supported by the frame for pivoting the first and second channel members between a vertical position and a horizontal position, the channel extension members extending from the upper ends of the first channel member and the second channel member when in the vertical position and contained in the first and second channel members when in the horizontal position.
Dependencies are inferred from the claim text.