Boxcar door mechanism
AssigneeTrinity Rail Group, LLC
InventorKenneth W. Huck
Life of this patent
Estimating the term…
Abstract
According to some embodiments, a boxcar door operating system comprises a rotating plate, a first lock bar, and a second lock bar. The rotating plate comprises a first lock bar engagement for engaging and disengaging the first lock bar and a second lock bar engagement for engaging and disengaging the second lock bar. An angular position of the first lock bar engagement with respect to a center of rotation of the rotating plate is different than an angular position of the second lock bar engagement with respect to the center of rotation of the rotating plate such that rotation of the rotating plate engages or disengages the first lock bar at a different time than the second lock bar.
Claims18
A door operating system comprising:
- a rotating plate, a first lock bar, and a second lock bar;
- the rotating plate comprising a first lock bar engagement for engaging and disengaging the first lock bar;
- the rotating plate comprising a second lock bar engagement for engaging and disengaging the second lock bar;
- and
- wherein an angular position of the first lock bar engagement with respect to a center of rotation of the rotating plate is different than an angular position of the second lock bar engagement with respect to the center of rotation of the rotating plate such that rotation of the rotating plate engages or disengages the first lock bar at a different time than the second lock bar.
A door operating system comprising:
- a rotating plate, a first horizontal rod, and a second horizontal rod;
- the first horizontal rod is coupled to the rotating plate via first slot in the rotating plate;
- the second horizontal rod is coupled to the rotating plate via a second slot in the rotating plate;
- wherein:
- a first portion of the first slot is circumferential to the rotating plate and a second portion of the first slot is not circumferential to the rotating plate;
- a first portion of the second slot is circumferential to the rotating plate and a second portion of the second slot is not circumferential to the rotating plate;
- and
- the first and second portions of the first slot are offset from the first and second portions of the second slot so that the first horizontal rod and the second horizontal rod start and stop horizontal movement at different times with respect to each other when the rotating plate is rotated.
A method for operating a railcar door, the door comprising a handle, a first door lock, and a second door lock, the method comprising:
- rotating the handle in a first direction to disengage the first door lock;
- and
- further rotating the handle in the first direction to disengage the second door lock.
Dependencies are inferred from the claim text.