Adjustable seat to support an occupant at a constant height
OwnerMichael E. McLeodinventor
Life of this patent
Estimating the term…
Abstract
A seat including a seat back and a seat bottom which is pivotally mounted is disclosed. The seat bottom is pivotally mounted for rotational movement between a first position wherein the seat bottom is substantially horizontal and a second position wherein the seat bottom is angled relative to a horizontal plane. The seat also includes means for maintaining the seat bottom in a number of positions intermediate the first and second positions. An occupant of the seat can select a seat bottom position which provides the best balance between the shock absorbing functions provided by the knees and the posterior.
Claims12
A seat supported by means such as legs above a floor, a deck or the like, said seat comprising
- a seat back frame,
- a seat back secured to and supported by said seat back frame,
- a seat bottom frame having a forward portion,
- a seat bottom having an upper rear edge, said seat bottom being secured to and supported by said seat bottom frame,
- pivot means pivotally connecting said seat bottom frame to said seat back frame for rotation about the upper rear edge of said seat bottom between a first position wherein said seat bottom frame is substantially parallel to and at a given distance from the floor, deck or the like and a second position wherein said forward portion of said seat bottom frame is positioned substantially less than the given distance from the floor, deck or the like, said deck or the like, said pivot means being positioned forward of said seat back frame to the extent that, as the seat bottom frame is rotated from said first position to said second position and back to said first position, the torso of an occupant of said seat whose back is positioned against said seat back and whose buttocks is positioned on said seat bottom, is supported at a constant height relative to said seat back frame, and
- adjustment means operable to selectively retain said seat bottom frame is said first position and said second position, and
- footrest means having an upper surface for supporting the feet of an occupant of the seat when said seat bottom is in the first position and a lower surface for supporting the feet of an occupant of the seat when the seat bottom is in the second position.
A seat supported by means such as legs above a floor, a deck or the like, said seat comprising
- a seat back frame,
- a seat back secured to and supported by said seat back frame,
- a seat bottom frame having a forward portion,
- a seat bottom having an upper rear edge, said seat bottom being secured to and supported by said seat bottom frame,
- pivot means pivotally connecting said seat bottom frame to said seat back frame for rotation between a first position wherein said seat bottom frame is substantially parallel to and at a given distance from the floor, deck or the like and a second position wherein said forward portion of said seat bottom frame is positioned substantially less than the given distance from the floor, deck or the like, said seat bottom frame being supported by said pivot means, for rotation relative to said seat back frame about a line which coincides with the upper rear edge of said seat bottom and is positioned forward of the seat back to the extent that, as the seat bottom frame is rotated from said first position to said second position and back to said first position, the torso of an occupant of said seat whose back is positioned against said seat back and whose buttocks is positioned on said seat bottom, is supported at a constant height relative to said floor, deck or the like, and
- adjustment means operable to selectively retain said seat bottom frame in said first position and said second position.
Dependencies are inferred from the claim text.