Invalid hoists
AssigneeImpro Limited
InventorDavid R. James
Life of this patent
Estimating the term…
Abstract
An invalid hoist has a lifting arm, a sling hanger support mounted to turn about a rigid vertical bearing axis at the outer end of the arm and a sling hanger which is a unitary construction pivotable about a horizontal axis relative to the sling hanger support. The sling hanger presents spaced sling attachment points on both sides of the horizontal axis for connection of one pair of sling attachments to one side of the horizontal axis and for connection of a second pair of sling attachments to the opposite side of the horizontal axis. Thus the disposition of a sling-suspended invalid can be changed, while suspended on the hoist, by pivotal movement of the sling hanger about the horizontal axis.
Claims14
An invalid hoist comprising a lifting arm, a sling hanger support mounted at the outer end of said arm so as to turn about a rigid vertical bearing axis, a sling hanger which is a unitary construction supported by said sling hanger support so as to be pivotable about a horizontal axis relative to the sling hanger support, said sling hanger presenting spaced sling attachment points on both sides of said horizontal axis for connection of one pair of sling attachments to one side of the horizontal axis and for connection of a second pair of sling attachments to the opposite side of the horizontal axis, and means for locating said sling hanger in angular position about said horizontal axis and which allow the latter to be infinitely adjustable in position throughout an operative range of pivotal movement about said horizontal axis.
An invalid hoist comprising a lifting arm, a sling hanger support mounted at the outer end of said arm so as to turn about a rigid vertical bearing axis, a sling hanger which is a unitary construction supported by said sling hanger support so as to be pivotable about a horizontal axis relative to the sling hanger support, said sling hanger presenting spaced sling attachment points on both sides of said horizontal axis for connection of one pair of sling attachments to one side of the horizontal axis and for connection of a second pair of sling attachments to the opposite side of the horizontal axis, and catch means for locating said sling hanger in angular position about said horizontal axis comprising a spring-loaded catch which selectively locates and retains the sling hanger in two or more alternative angular positions about said horizontal axis.
An invalid hoist comprising a lifting arm, a sling hanger support mounted at the outer end of said arm so as to turn about a rigid vertical bearing axis, a sling hanger which is a unitary construction supported by said sling hanger support so as to be pivotable about a horizontal axis relative to the sling hanger support, said sling hanger presenting spaced sling attachment points on both sides of said horizontal axis for connection of one pair of sling attachments to one side of the horizontal axis and for connection of a second pair of sling attachments to the opposite side of the horizontal axis, and siad sling hanger comprising a central member which extends at one end of the sling hanger as a handgrip adapted to be grasped by an attendant whereby said central member can be used as a lever to pivot the sling hanger about said horizontal axis.
Dependencies are inferred from the claim text.