ROTATABLE SEAT CRADLE

摘要

A rotatable seat cradle including a lumbar supporting back, a thigh supporting front, an intermediate pelvic support bucket located between the back and the front, and an upwardly sloping transition wall that extends continuously and co-extensively between the pelvic support bucket and the thigh supporting front. The seat cradle is pivotally coupled to a stand or to a yoke connected to a chair base. The thigh supporting front of the seat cradle lies above the pelvic support bucket and cantilevers outwardly from the upwardly sloping transition wall. A seated user shifting his weight towards the front of the seat cradle pushes his legs against the thigh supporting front to generate a rotational force thereagainst for causing a corresponding rotation of the seat cradle relative to the stand or the yoke to which the seat cradle is pivotally coupled.

主权项

1. A rotatable seat cradle in which a user is to be seated, said seat cradle comprising a back against which the seated user's back is received, a front upon which the user's legs are laid, an intermediate pelvic support bucket lying between said back and said front within which the user's pelvis is received, and a pair of sides spaced from and lying opposite one another, the front of said seat cradle lying above the bottom of said pelvic support bucket such that the user leaning forward in the seat cradle causes the user's legs to apply a pushing force against said front by which to correspondingly cause said seat cradle to rotate and thereby unload the user's upper body weight from his pelvic sacroiliac joints so as to induce pelvic tilt and lumbar lordosis.