Crane equipped with a maintenance elevator

Details Crane equipped with a maintenance elevator Crane equipped with a maintenance elevator

1993-10-19

1995-09-19

Noland, Kenneth

Elevator, industrial lift truck, or stationary lift for vehicle

Transportable elevator

Wheel supported

187257, 414279, B66B 920

Patent

active

054509297

ABSTRACT:
A maintenance elevator 40 is employed in the case of an emergency situation such as a failure of the carriage 16 or in carrying out regular maintenance and checkup operations. An operator can get on the maintenance elevator 40 brought to a stop at its lowermost position. The maintenance elevator 40 is moved upward along a post 12 and is brought to a stop at any position in which, for example, a gangway 57 formed integrally with the elevator 40 is opposed to the carriage 16. Movement of the operator between the maintenance elevator 40 and the carriage 16 can be done by utilizing the gangway 57. Transfer from the maintenance elevator to the carriage and vice versa can be always made in an easy and safe manner by using the gangway. Provision of all the gangways at the maintenance elevator side realizes weight reduction at the carriage side, good energy saving, and cost reduction.

REFERENCES:
patent: 2001674 (1935-05-01), Erickson
patent: 4252217 (1981-02-01), Benjamin
patent: 4599030 (1986-07-01), Skaalen et al.

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