Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent
1989-01-25
1989-11-28
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Means maintaining platform level on angularly movable support
Swingable support
182 90, 182228, B66F 1104
Patent
active
048831450
ABSTRACT:
A simple apparatus is disclosed that reduces the risk of low-back injury to workers in elevated, partially enclosed, aerial baskets. The preferred embodiment basically comprises a circular well within the floor of the basket that is surrounded by a raised footrest platform adapted to receive on foot of the worker. Between the footrest platform and a base of the well is a cylindrical wall that prohibits forward movement under the footrest platform.
In operations, when the worker has to perform manual handling tasks outboard of the basket, one foot is raised out of the well and extended forward onto the footrest platform, while the other foot remains below and behind the raised foot, on the base of the well. The worker has thereby adopted a forward leaning posture instead of a forward bending posture. Consequently, the worker retains the optimal curvature of the spine, while achieving a biomechanical advantage that reduces the work demand on the lower back.
REFERENCES:
patent: 2954092 (1960-09-01), Thorton-Trump
patent: 3087581 (1963-04-01), Pitman
patent: 3396814 (1968-08-01), Garnett
patent: 3404751 (1968-10-01), Nosworthy
patent: 3605941 (1971-09-01), Edwards
patent: 3625305 (1971-12-01), Mueller
patent: 3653461 (1972-04-01), Huxley
patent: 3664458 (1972-05-01), Sterns
patent: 3750846 (1973-08-01), Huxley
patent: 3917026 (1975-11-01), Hedges
patent: 4047593 (1977-09-01), Dammeyer
patent: 4160492 (1979-07-01), Johnston
patent: 4443900 (1984-04-01), Remeyer
patent: 4763755 (1988-08-01), Murray
patent: 4763758 (1988-08-01), Moody
Holland Donald S.
Machado Reinaldo P.
LandOfFree
Ergonomic aerial basket does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ergonomic aerial basket, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ergonomic aerial basket will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-577203