Wheelchair backrest assembly
AssigneePermobil AB
InventorsBo Engman, Urban Lind, Niklas Backstrom, Jonas Jahkel, Mehdi Mirzaie
Life of this patent
Estimating the term…
Abstract
A backrest assembly for a wheelchair includes a support plate pivotally connected to a seat, wherein the support plate is configured to be pivotally adjusted between upright and reclined positions with respect to the seat; a slide plate slidably secured on a front surface of the support plate; and a backrest adjustment assembly operatively connected to the support plate and the slide plate. The backrest adjustment assembly includes a link configured to adjust the support plate. The slide plate slides over the support plate through the link.
Claims17
A backrest assembly for a wheelchair, the backrest assembly comprising:
- a support plate configured to be pivotally adjusted between upright and reclined positions with respect to a seat;
- a slide plate slidably secured to said support plate;
- and
- a pivot arm operatively connected to said slide plate by a slot linkage that includes a knob on said pivot arm that extends into and slides within a slot that extends through a body of said slide plate from a front to a back of said slide plate, said slot linkage allowing said pivot arm to move with respect to said slide plate;
- wherein, when said support plate is pivotally adjusted, said pivot arm moves and causes said slide plate to slide along said support plate.
A backrest assembly for a wheelchair, the backrest assembly comprising:
- a support plate configured to be pivotally adjusted between upright and reclined positions with respect to a seat;
- a slide plate slidably secured on a front surface of said support plate and having a slot that extends through a body of said slide plate from a front to a back of said slide plate;
- and
- a pivot arm having a knob mounted thereon that extends into and is slidably retained in said slot;
- wherein, when said support plate is pivotally adjusted, said pivot arm rotates and causes said slide plate to slide along said support plate.
A backrest assembly for a wheelchair, the backrest assembly comprising:
- a seat;
- a support plate configured to be pivotally adjusted between upright and reclined positions with respect to the seat;
- a slide plate slidably secured on a front surface of said support plate and having a slot that extends through a body of said slide plate from a front to a back of said slide plate;
- a pivot arm having a knob mounted thereon that extends into and is slidably retained in said slot;
- and
- a link that is operatively connected to said pivot arm;
- wherein, when said support plate is pivotally adjusted, said pivot arm rotates and causes said slide plate to slide along said support plate.
Dependencies are inferred from the claim text.