Crane hook and trolley camera system
DCFirst Claim
1. A crane camera system having a trolley camera system adapted to be mounted on a trolley of a crane comprising:
- a hook camera system mounted on a hook device including a hook camera;
a trolley signal receiver for receiving hook camera image signals transmitted from a hook camera image signal transmitter on a hook device suspended by cables from the trolley, anda trolley signal transmitter for wirelessly transmitting the received hook camera image signals in a direction along a boom, the trolley is mounted on toward an operator cabin located at a proximal part of the boom,wherein the trolley camera system is supplied with power from an ambient energy generator that draws enemy from the spin of the trolley pulleys in a magnetic field.
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Accused Products
Abstract
A crane camera system employs a hook camera transmitter to send wireless signals vertically upward to a trolley receiver, which are then relayed by a trolley transmitter to the operator cabin. This allows line-of-sight wireless transmission of signals from the hook to the cabin to take place reliably without interference from obstructions on the work site. It is especially suitable for a tower-type overhead or boom-type crane. A trolley camera may also be provided for taking look-down images of the hook and transmitting them to the cabin in tandem with the hook camera signals. The hook and trolley camera images allows the operator to see more precisely the positioning of the hook relative to the ground, thereby greatly reducing the possibility of accidents or damaging collisions with persons or objects on the ground. A hook assembly mounting the hook camera on the hook has a longitudinal frame fastened with vibration-dampeners to two lateral hook spindles in the hook to avoid reducing the integrity of the hook or contact with moving parts of the hook.
28 Citations
11 Claims
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1. A crane camera system having a trolley camera system adapted to be mounted on a trolley of a crane comprising:
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a hook camera system mounted on a hook device including a hook camera; a trolley signal receiver for receiving hook camera image signals transmitted from a hook camera image signal transmitter on a hook device suspended by cables from the trolley, and a trolley signal transmitter for wirelessly transmitting the received hook camera image signals in a direction along a boom, the trolley is mounted on toward an operator cabin located at a proximal part of the boom, wherein the trolley camera system is supplied with power from an ambient energy generator that draws enemy from the spin of the trolley pulleys in a magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification