HYDRAULIC CRANE AERIAL PLATFORM ATTACHMENT

摘要

An aerial platform is pivotally attached to the boom tip of a hydraulic crane. The pivotal suspension permits the platform to remain level as the crane boom is elevated, while the pinned connection to the crossshafts allow the attachment to be readily removed and re-installed. The platform includes a basket and is positioned adjacent to the boom tip so that tools or other light materials may be exchanged between the ground and the basket by means of the whip line on the crane. A dash pot, preferably in the form of an automotive shock absorber, attached between the bracket and the platform controls the rate of movement and hence prevents any sudden rotational movement of the platform relative to the boom tip as the boom is elevated into a desired working position. A hand operated brake is provided to prevent rotation of the platform relative to the boom tip while the platform occupied and in a working position. A device for storing the platform while attached to the boom tip so that the crane remain operable for certain uses and may also be transported in a normal manner is also provided.