Telescopic boom of a crane
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United States of America Patent
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-
May 16, 2006
Grant Date -
Apr 1, 2004
app pub date -
Jun 5, 2003
filing date -
Jun 5, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The within invention concerns a telescopic boom of a crane with a pivot section, telescoping sections that telescope out of the pivot section, and bracing that has at least one guy support housed on one of the sections and a guy cable supported on one of these guy supports. According to the invention, the telescopic crane is characterized by the presence of a guy cable running from the guy support and a cable lock that can be locked to said guy cable, in which the cable lock can be moved by means of an actuator, particularly an hydraulic cylinder, in the longitudinal direction of the guy and the guy cable can be pre-stressed by moving the cable lock.
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