Railroad passenger seat
OwnerJon Laneinventor
Life of this patent
Estimating the term…
Abstract
A passenger seat having a walk-over seat back mounted for movement on a pair of rotatable shafts through a pair of of levers mounted on each end of the shafts. The levers contact each other at opposite seat positions to support the seat back. The pair of shafts include a torsion section at each end portion capable of undergoing plastic deformation upon a lock mechanism detecting predetermined deceleration forces. A lever and link element are operatively connected between the seat cushion frame to permit movement. The seat cushion is removable secured to the seat cushion frame.
Claims24
A passenger seat comprising
- A main seat frame having a plurality of horizontal cross support members,
- a cushion frame being mounted on said main seat frame and having a plurality of horizontal cushion support members deposed above said main seat frame, and
- one of said plurality of horizontal cushion support members resting directly on one of said plurality of cross support members, and another one of said plurality of cushion support members resting on another one of said plurality of cross member for direct contacting support of said seat cushion frame by said main frame.
A passenger seat comprising
- a main seat frame having a plurality spaced of horizontal cross members,
- a seat cushion frame arranged to be operatively affixed to said main frame and having a seat back frame mounted for movement between a first position and second position,
- said seat cushion frame further having a plurality of spaced horizontal cross frame members,
- said seat cushion frame being coupled for movement with said seat back frame between said first position and said second position,
- one of said plurality of cross frame members resting on one of said plurality of cross frame members in said first position of said seat frame.
A passenger seat comprising a moveable seat cushion frame having lower frame members,
- said seat cushion frame being supported on seat frame having upper support surfaces, and
- said lower frame members of said seat cushion frame directly resting on said upper support surfaces.
A passenger seat comprising
- a seat frame having a pair of opposite ends,
- a seat back,
- a plurality of shafts extending generally between opposite ends of said seat frame,
- said plurality of shafts terminating with end portions at each of said opposite ends,
- said plurality of shafts mounting said seat back for movement to oppositely facing positions of said seat back,
- energy dissipation means being positioned on each end of said end portions of said plurality of shafts, and
- said energy dissipation means being formed on each of end portions of said plurality of shafts.
A passenger seat comprising
- a seat frame having a pair of opposite ends,
- seat cushion frame and seat back being operatively connected to said seat frame,
- at least one rotatably mounted shaft extending between opposite ends of seat frame and being operatively connected to said seat back to permit movement of said seat back between a first seating position and a second seating position in response to rotation of said at least one shaft,
- lever means being connected to said at least one shaft and said seat cushion frame and being moveable in response to said movement of said seat back, and
- said lever means includes a lever arm attached to said at least one shaft at each end and a link element operatively attached between said lever arm and said cushion frame, said lever arm and said link element undergoing movement in response to rotation of said at least one shaft to move said cushion frame.
A passenger seat comprising
- a seat cushion having a bottom member forming flat lower surfaces,
- a cushion frame having a plurality of frame members forming upper surfaces,
- said flat lower surfaces and said flat upper surfaces arranged to contact each other, at least a portion of said flat lower surfaces and said flat upper surfaces having respective hook securement elements and interconnecting loop securement elements for removably securing said seat cushion of said cushion frame.
Dependencies are inferred from the claim text.