US 11,440,778 B2Granted

Crane

AssigneeTadano Ltd.

InventorsMasanori Oshima, Hiroto Ota, Yoshikado Itasaka, Shota Roppongi

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Abstract

Provided is a crane capable of changing a moment on a counterweight side without changing a total weight of the crane by using a simple method. The crane includes a base, and a swiveling body that is provided above the base so as to swivel about a pivot center, and includes a boom and a counterweight attaching unit. The counterweight attaching unit includes a plurality of attaching positions, and is configured to selectively attach and detach the counterweight to and from any attaching position among the plurality of attaching positions, and the plurality of attaching positions is positions of which distances from the pivot center are different from each other.

Claims7

Dependent claims

A crane comprising:

a vehicle comprising a carrier frame extending in a front-rear direction thereof;
and
a swiveling body that is provided above the carrier frame so as to swivel about a pivot center, and includes a boom and a counterweight attaching unit, wherein
the counterweight attaching unit includes a plurality of attaching positions of which distances from the pivot center are different from each other, and is configured to selectively attach and detach a counterweight to and from any attaching position among the plurality of attaching positions, and
the vehicle further comprises a supporting member provided to the carrier frame such that the supporting member projects rearward from a rear end of the carrier frame to support a center of gravity of the counterweight before attachment to a rear side attaching position of the plurality of attaching positions.

2 more elements

Dependencies are inferred from the claim text.