Dual actuator assembly
AssigneeOshkosh Corporation
InventorsLex A. Mellott, Eric T. Welsh
Life of this patent
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Abstract
A boom assembly includes a lower boom, an upper boom, and an actuator assembly. The lower boom has an upper end and a base end. The base end is configured to be pivotally coupled to a lift device. The upper boom has a lower end pivotally coupled to the upper end of the lower boom. The actuator assembly has (i) a first end coupled to at least one of the upper end of the lower boom and the lower end of the upper boom, and (ii) an opposing second end coupled to the upper boom. The actuator assembly includes a first actuator and a second actuator. The second actuator is rigidly joined to the first actuator at the first end of the actuator assembly and flexibly joined to the first actuator at the opposing second end of the actuator assembly.
Claims15
A boom assembly, comprising:
- a lower boom having an upper end and a base end, wherein the base end is configured to be pivotally coupled to a lift device;
- an upper boom having a lower end pivotally coupled to the upper end of the lower boom;
- and
- an actuator assembly having (i) a first end coupled to at least one of the upper end of the lower boom and the lower end of the upper boom, and (ii) an opposing second end coupled to the upper boom, the actuator assembly including:
- a first actuator;
- and
- a second actuator rigidly joined to the first actuator at the first end of the actuator assembly and flexibly joined to the first actuator at the opposing second end of the actuator assembly.
11-16. (canceled)
A lift device, comprising:
- a base;
- a boom assembly including:
- a first boom portion pivotally coupled to the base;
- and
- a second boom portion pivotally coupled to the first boom portion;
- and
- an actuator assembly having (i) a first end coupled to the first boom portion and (ii) an opposing second end coupled to the second boom portion, the actuator assembly including:
- a first actuator;
- and
- a second actuator arranged in parallel with the first actuator, the second actuator rigidly joined to the first actuator at the first end of the actuator assembly and flexibly joined to the first actuator at the opposing second end of the actuator assembly.
Dependencies are inferred from the claim text.