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US 4,362,334 AGranted
Portable folding orthopedic seat
AssigneeAccu-Back, Inc.
InventorsRobert M. Ross, George M. Kristof
Life of this patent
Estimating the term…
Abstract
A portable folding orthopedic seat unit for use on a chair, automobile seat, or the like. A seat member is hinged to a back member. Vertical tracks extend from the bottom to the top of the back member and support a back-support assembly, comprising two separate, generally elliptically-shaped, centrally extending padded back-support members, spaced apart from each other, and a connecting member joining them together. The connecting member also serves to transfer forces from one back-support member to the other. Two strips that adhere to each other on contact are used to hold the assembly at a selected vertical position on the tracks.
Claims21
In a portable folding orthopedic seat unit having:
- a seat member hinged to a back member with an internal rigid support frame extending from the bottom to the top of said back member, and a cloth cover enclosing said seat member and said back member,
- a pair of separate, padded, generally elliptically-shaped, back-support members, spaced apart from each other and joined by a horizontally rigid connecting member,
- each said back-support member comprising a rigid rear portion attached to said connecting member, a forward resilient portion supported on said rear portion, and cloth cover means enclosing said resilient portion and said rear portion,
- the combination therewith of:
- two vertical parallel internal track support members attached inside said back member to said rigid frame,
- two parallel separate guide tracks attached through said back member to said internal track support members, extending substantially from the bottom to the top of said back member,
- slidable clip means reciprocal with said guide tracks attached to the back of said rigid rear portion of said pair of back support members, for slidably mounting said back-support members on said guide tracks, said pair of back-support members being slidably disposed on said parallel guide tracks,
- a first strip of material attached to the middle of said back member parallel with said guide tracks, and,
- a second strip of material which adheres to said first strip of material upon contact therewith, said second strip being attached to said horizontally rigid connecting member and disposed vertically upwardly between said back-support members,
- whereby said back-support members may be adjusted to solely support the lower back of a person sitting in said seat unit by sliding said pair of back-support members on their guide tracks to a desired position and securing said second strip of material to said first strip of material, thereby holding said back-support members at the desired position.
7 more elements
A portable folding orthopedic seat unit for use on a chair, an automobile bucket seat, and the like, including in combination:
- a seat member,
- a back member hinged to said seat member so that they can be collapsed together to a generally flat position and opened to a seating position,
- a cloth cover surrounding said seat member and said back member,
- an abbreviated internal quadrilateral rigid frame in said back member having a pair of vertical portions extending substantially from the bottom to the top of the back member and a pair of horizontal portions extending partially from side to side of the back member, thereby leaving an unsupported side margin of said cloth cover on said back member
- an adjustable back-support assembly, comprising:
- two vertical tracks disposed on said back member substantially equidistant from the centerline of said back member, extending substantially from the bottom to the top of said back member,
- two separate, padded, generally elliptically-shaped, back-support pads having a hard back mounting surface and a resilient front padded surface, both said surfaces being surrounded by a cloth cover, one said pad being slidably mounted on each said track,
- a rigid horizontal bar extending between and connecting the backs of said back-support pads for their simultaneous adjustment,
- a first strip of material attached to said back member disposed vertically between said tracks, and
- a second strip of material connected to said horizontal bar between said back-support pads,
- said first and second strips of material having faces which adhere to each other upon physical contact between them
- whereby said back-support assembly may be slidably adjusted to a position on said tracks to comfortably solely support the lower back of a person sitting in said seat unit and may be secured in that position by placing said first strip of material in adhering contact with said second strip of material.
9 more elements
A portable folding orthopedic seat unit for use on a chair, automobile seat, and the like, including in combination:
- a seat member,
- a back member hinged to said seat member so that they can be collapsed together to a generally flat position and opened to a seating position,
- a first internal quadrilateral marginal rigid frame in said back member,
- a second internal quadrilateral marginal rigid frame in said seat member,
- a cloth cover surrounding said seat member and said back member, and
- an adjustable back-support assembly, comprising:
- two vertical tracks disposed substantially equidistant from the centerline of said back member, extending substantially from the bottom to the top of said back member,
- two separate, padded, generally elliptically-shaped, back-support pads having a hard back mounting surface and a resilient front padded surface, both said surfaces surrounded by a cloth cover, one said pad slidably mounted on each said track, and
- a rigid horizontal bar extending between and connecting the backs of said back-support pads for their simultaneous adjustment,
- a first strip of material attached to said back member disposed vertically between said tracks, and
- a second strip of material connected to said horizontal bar between said back-support pads,
- said first and second strips of material having faces which adhere to each other upon physical contact between them,
- whereby said back-support assembly may be slidably adjusted to a position on said tracks to comfortably solely support the lower back of a person sitting in said seat unit and may be secured in that position by placing said first strip of material in adhering contact with said second strip of material.
10 more elements
Dependencies are inferred from the claim text.