| 摘要 |
A method and apparatus for retracting a support leg includes a telescoping inner leg member contained in an outer leg member. A spring-loaded pin engages the inner leg member. To lower the leg, the spring-loaded pin is removed allowing the inner leg member to extend to a desired position. When in the desired position, the spring-loaded pin is released and the pin reengages the inner leg member. To raise the inner leg member, the spring-loaded pin is removed until a slidable trip member falls. The slidable trip member then blocks the spring-loaded pin from reengaging the inner leg member. The inner leg member is raised, the trip member lifted, and the inner leg member secured in a proper position for travel. The inner leg member can be raised by a cable attached to the inner leg member to allow one-handed operation of the entire system.
|
