Pin retracting mechanism for a trailer
AssigneeThe Budd Company
InventorsGeorge Mekosh, Jr., David O. Hulse
Life of this patent
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Abstract
A power actuating mechanism uses a mechanical spring to normally urge a pin through openings in a track and rail of a trailer and bogie, respectively, to lock the trailer to the bogie. Structure is provided to selectively apply air pressure to an actuator to overcome the bias of the mechanical spring and move the pin out of the opening in the track of the trailer to unlock the bogie from the trailer for repositioning or removal.
Claims8
In combination with a trailer with tracks connected thereto for receiving rails connected to a bogie, with the bogie having structure including a movable pin element disposed to pass from the rails through a selected opening in one of the tracks to lock the bogie in place beneath the trailer during operation, with the pin element being disposed to be removed from the opening in said track when the trailer is being repositioned over the bogie or separated from the bogie when the trailer is not operated,
- a power actuated retracting mechanism comprising:
- a. spring biasing means connected to normally urge said pin element into a locking position from said rail through an opening in at least one of said tracks;
- b. a source of air pressure;
- c. means responsive to said air pressure to overcome the bias of said spring biasing means to move said pin element from said locking position out of the opening of said one track of said trailer;
- and
- d. means for selectively connecting said source of air pressure to said means responsive to said air pressure.
Dependencies are inferred from the claim text.