Railroad passenger walk-over seat
OwnerJon Laneinventor
Life of this patent
Estimating the term…
Abstract
A railroad passenger walk-over seat having a seat back capable of being rotated into opposed positions. A locking mechanism having engaging locking elements and a lock member to arrest movement of the seat back during forces created by abrupt deceleration. The deceleration force is dissipated by a shaft section that undergoes plastic deformation.
Claims22
A walk-over passenger seat comprising
- seat means having a seat back being mounted for movement between oppositely facing position;
- lever means being affixed to said seat back, shaft means being mounted on said seat means and affixed to said lever means for rotation relative to said seat means to permit said seat back to be moved to said oppositely facing positions,
- locking means affixed to said shaft means arresting rotation of said shaft means and locking said seat back in response to deceleration forces, and
- energy dissipation means being coupled to said shaft means, said energy dissipation means having at least one shaft section for undergoing twisting for dissipation of energy upon locking of said seat back.
A walk-over passenger seat having a seat back freely moveable between opposed positions under normal conditions comprising
- seat means having a seat back, said seat back being mounted on said seat means for movement between oppositely facing positions.
- locking means operatively connected to the seat back for preventing movement of said seat back in response to deceleration forces, and
- shaft means mounted on said seat means and affixed to said seat back, said locking means being mounted on said seat means for contacting said shaft means for preventing movement of said seat back in response to deceleration forces, said shaft means having means for dissipating energy force of the deceleration force while movement of said seat back is prevented.
An energy dissipation device for a walk-over seat back comprising seat means having a walk-over seat back, a shaft having a pair of ends attached to said seat means and affixed to the walk-over seat back, said shaft having an intermediate energy dissipating section, and said section having a smaller diameter than said shaft.
A walk-over passenger seat comprising seat means having a seat back being mounted for movement between opposite facing directions, lever means being mounted on said seat means in coupled relationship to said seat back for permitting said movement, said lever means including a pair of spaced levers pivotally mounted on said seat means and retainer means affixed to said lever means for contacting a respective one of said pair of levers in one of said oppositely facing directions of said seat back for locking said seat back against movement said retainer means contacting the other of said pair of levers in the other of said oppositely facing directions.
A walk-over passenger seat comprising
- a seat frame having a pair of opposite ends,
- a seat back,
- at least one shaft extending generally between said opposite ends of said seat frame,
- said at least one shaft mounting said seat back to said seat frame for movement in oppositely facing positions of said seat back,
- energy dissipation means being mounted on said at least one shaft for arresting said movement in response to deceleration forces, and
- said energy dissipation means being mounted inward in spaced relationship to said pair of opposite ends.
Dependencies are inferred from the claim text.