Some options for the 2T base
This basic prototype at Cambridge shows the carcass/shell mounted on the base with a tilt hinge at the level of the fulcrum. The base is a standard 5 star. Greater stability when reclined would be improved if the back 2 legs were extended. This suggests that the rotation of 360° would need to be reduced to about 60° in the anterior direction.
The post Hospital beds shows a number of beds each with a base of great complexity.
- For this
- The hinge would be at the apex of the base.
- The hinge could be mounted at the fulcrum
- or at the front edge of the seat-pan.
- Damping is required to avoid a jolt at the end of range.
- The base can be narrower or wider than the carcass.
- The latter is more stable.
- Consider :-
- The mounting of the arm-rests, if any.
- A shelf, shelves.
- side restraints for a hospital bed.