LOCKING HEAD ASSEMBLY FOR CRANE BOOM PINS, BOOM WITH SUCH AN ASSEMBLY AND CRANE WITH SUCH A BOOM
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United States of America Patent
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Issued Date -
Aug 4, 2022
app pub date -
Jun 24, 2020
filing date -
Jun 24, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A locking head assembly (210) for a telescoping boom (118) of a crane (110) includes a locking head (212) having a base (218), an operating plate (220) operably coupled to the base, one or more cylinder pins (222) and/or one or more section lock arms (226) movable in response to movement of the operating plate relative to the base. An actuator (214) is operably coupled to the operating plate and configured to move the operating plate relative to the base. The actuator includes a motor (234) and a drive arm (236). The motor is configured to drive the drive arm between a drive arm first position and a drive arm second position. A motion mitigator (216) is connected to the actuator and the locking head and includes a housing (238), a rod (240) movable relative to the housing, and a biasing device (242) disposed between the rod and the housing.
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