B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
B66C 23/687 (2006.01) B66C 23/70 (2006.01)
Patent
CA 2404192
Telescopic arm comprising a first base section, a second intermediate section inserted in the base section, and a third terminal section inserted in the intermediate section. An extension cylinder is operatively associated between the first and the second section to actuate the second section between a retracted position in which it is inserted in the first section, and an extended section in which it projects from the first section. The arm further comprises a first pulley integral with an outer end of the second section and a first chain transmitted by the first pulley, which slides in part between the first and the second section and in part between the second and the third section, and which has a first end associated internally to the first section and a second end associated to the third section to extend the third section relative to the second section when the second section is extended relative to the first section. The arm is also provided with return means to cause the third section to return inside the second section when the second section is made to return inside the first section. A covering case is mounted in removable fashion externally to the second section to cover and protect the first chain when the second section is extended relative to the first section.
Komatsu Utility Europe S.p.a.
Shapiro Cohen
LandOfFree
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