US 4,393,529 A · Invalid chair

Abstract

A two-part invalid chair is disclosed which enables a patient to be easily transferred from a lying position on a bed to a seated position on a chair, or vice versa. The first part of the chair consists of an elongated, tubular frame within which a body supporting web is suspended. The second part of the chair consist of troughs mounted to a support base, each having a semi-circular cross section which conforms to the shape of the tubular frame of the first part of the chair. This enables the frame to be readily mounted to or removed from the base portion. Both the tubular frame and the base portion are articulated at hinged joints to enable the patient, while seated in a chair, to assume a variety of body inclinations. The frame can be removed from the base with the patient seated therein and can be readily transferrred to a bed where the frame can unfold to a completely flat position enabling the easy transfer of the patient to the bed. Several embodiments are disclosed having features which complement the basic function of the invalid chair.

A two-part invalid chair, comprising:

an elongated, tubular frame having an open inner area bounded by a U-shaped, tubular, head-supporting portion on a first end and a U-shaped, tubular, foot-supporting portion on a second end with a first leg of said head portion connected to a first end of a first tubular, flank-supporting portion whose second end is connected to a first leg of said foot-supporting portion and with a second leg of said head portion connected to a first end of a second, tubular, flank-supporting portion whose second end is connected to a second leg of said foot-supporting portion;
a body supporting web suspended in said open inner area of said frame and mounted to said U-shaped head-supporting portion, said flank-supporting portions and said U-shaped foot-supporting portion;
a first horizontal trough mounted to a support base, having a semi-circular cross section which conforms to the shape of said first tubular, flank-supporting portion of said frame and a second horizontal trough mounted to said support base, having a semi-circular cross section which conforms to the shape of said second tubular, flank-supporting portion of said frame, for removably mounting said flank-supporting portions to said support base;
said first and second flank-supporting portions of said frame being in a substantially, mutually parallel relationship at a predetermined separation distance;
said first and second horizontal troughs being mounted to said support base in a substantially, mutually parallel relationship at said predetermined separation distance for removably mounting said respective flank-supporting portions thereto;
a first clamp mounted to said first horizontal trough of said base, for clamping said first flank-supporting portion of said frame thereto;
a second clamp mounted to said second horizontal trough of said base, for clamping said second flank-supporting portion of said frame thereto;
a first upper trough mounted to a first end of said first horizontal trough, having a semi-circular cross section which conforms to the shape of said first leg of said U-shaped, tubular, head-supporting portion of said frame and a second upper trough mounted to a first end of said second horizontal trough, having a semi-circular cross section which conforms to the shape of said second leg of said U-shaped, tubular, head-supporting portion of said frame, for removably mounting said head-supporting portion thereto;
said first and second upper troughs being mounted to said respective first and second horizontal troughs in a mutually spaced relationship for removably mounting the tubular contours of said respective first and second legs of said head-supporting portion of said frame into said semi-circular contours of said respective upper troughs;
a first clamp mounted to said first upper trough of said base, for clamping said first leg of said head-supporting portion of said frame thereto;
a second clamp mounted to said second upper trough of said base, for clamping said second leg of said head-supporting portion of said frame thereto;
said first leg of said U-shaped head-supporting portion of said frame being hingedly mounted to said first end of said first flank-supporting portion and said second leg of said U-shaped head-supporting portion of said frame being hingedly mounted to said first end of said second flank-supporting portion;
said first upper trough of said base being hingedly mounted to said first end of said first horizontal trough and said second upper trough of said base being hingedly mounted to said first end of said second horizontal trough;
a first lower trough mounted to a second end of said first horizontal trough, having a semi-circular cross section which conforms to the shape of said first leg of said U-shaped, tubular, foot-supporting portion of said frame and a second lower trough mounted to a second end of said second horizontal trough, having a semi-circular cross section which conforms to the shape of said second leg of said U-shaped, tubular, foot-supporting portion of said frame, for removably mounting said foot-supporting portion thereto;
said first and second lower troughs being mounted to said respective first and second horizontal troughs in a mutually spaced relationship for removably mounting the tubular contours of said respective first and second legs of said foot-supporting portion of said frame into said semi-circular contours of said respective lower troughs;
a first clamp mounted to said first lower trough of said base, for clamping said first leg of said foot-supporting portion of said frame thereto;
and
a second clamp mounted to said second lower trough of said base, for clamping said second leg of said foot-supporting portion of said frame thereto.

15 more elements

Invalid chair

Life of this patent

Invalid chair

Life of this patent

Abstract

Claims5