Invalid hoists
OwnerRoy Parkerinventor
Life of this patent
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Abstract
An invalid hoist comprises a pivoted jib (3) for carrying an under arm-sling (13), which is arranged when pivoted to lift a user from a sitting position to a standing position and vice versa. The hoist includes knee engaging means (5) and is preferably mounted on a movable chassis (1). The arrangement is such that the movement of the user's upper body from a sitting position to a standing position always involves a substantial forward component. In preferred embodiments, this is achieved by locating the pivot (15) at substantially the level of a user's waist, by having a jib (3) which is at least twice the length of the distance between the knee joint and the hip joint, and by spacing the pivot (15) backwardly from the knee engaging means (5).
Claims17
An invalid hoist comprising a pivoted jib (3) for carrying an under-arm sling (13) for engaging the under-arm area of a user and means for pivoting said jib from a lower to a higher position to lift a user via the sling from a sitting position to a substantially standing position, and vice versa;
- a knee engaging means (5) for engaging the knee area of a user;
- said jib being mounted for pivotal movement about a pivot (15) that is located at a lower position than the position of engagement of the sling with a user in a sitting position, whereby pivotal movement of the jib from a lower to a higher position to raise a sling and a user always imparts a substantial forward component of motion to the sling and the upper body of a user between a user sitting and a user standing position.
Dependencies are inferred from the claim text.