Mobile crane with ballast receiving apparatus

US10870561B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10870561-B2
Application numberUS-201816226829-A
CountryUS
Kind codeB2
Filing dateDec 20, 2018
Priority dateOct 31, 2014
Publication dateDec 22, 2020
Grant dateDec 22, 2020

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The invention relates to a mobile crane having an undercarriage and a superstructure rotatable with respect to the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the superstructure and having at least one ballasting cylinder for receiving ballast. In accordance with the invention, the position of the ballasting cylinders receiving the ballast is varied in the ballast receiving apparatus such that the ballast can be received in positions of different distances from the axis of rotation of the superstructure.

First claim

Opening claim text (preview).

The invention claimed is: 1. A mobile crane having an undercarriage and a superstructure rotatably mounted upon the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the superstructure and having at least one ballasting cylinder arranged for receiving ballast from the undercarriage and moving the ballast onto the superstructure, wherein position of the at least one ballasting cylinder arranged for receiving the ballast from the undercarriage is variable in the ballast receiving apparatus such that the ballast is receivable from the undercarriage in positions of different distances from the axis of rotation of the superstructure, and the at least one ballasting cylinder is pivotable about a pivot axis vertical with respect to the superstructure. 2. A mobile crane in accordance with claim 1 , wherein the at least one ballasting cylinder can be fixed in positions via a locking mechanism. 3. A mobile crane in accordance with claim 1 , wherein the ballast is receivable in two different distances from the axis of rotation of the superstructure. 4. A mobile crane having an undercarriage and a superstructure rotatably mounted upon the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the superstructure and having at least one ballasting cylinder arranged for receiving ballast from the undercarriage and moving the ballast onto the superstructure, wherein position of the at least one ballasting cylinder arranged for receiving the ballast from the undercarriage is variable in the ballast receiving apparatus such that the ballast is receivable from the undercarriage in positions of different distances from the axis of rotation of the superstructure, the at least one ballasting cylinder can be fixed in positions via a locking mechanism, and the at least one ballasting cylinder is received in pivot consoles which are pivotable about vertical pivot axes. 5. A mobile crane having an undercarriage and a superstructure rotatable with respect to the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the superstructure and having at least one ballasting cylinder for receiving ballast, wherein position of the at least one ballasting cylinder receiving the ballast is variable in the ballast receiving apparatus such that the ballast can be received in positions of different distances from the axis of rotation of the superstructure, the at least one ballasting cylinder can be fixed in position via a locking mechanism, and the locking mechanism comprises a spring-loaded pin which can be drawn against a spring force, with the pivoting of the respective ballasting cylinder arranged at a pivot console being able to be carried out from the ground. 6. A mobile crane having an undercarriage and a superstructure rotatably mounted upon the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the superstructure and having at least one ballasting cylinder arranged for receiving ballast from the undercarriage and moving the ballast onto the superstructure, wherein position of the at least one ballasting cylinder arranged for receiving the ballast from the undercarriage is variable in the ballast receiving apparatus such that the ballast is receivable from the undercarriage in positions of different distances from the axis of rotation of the superstructure, and receiving means are arranged at the receiving apparatus such that the ballast can be placed down in the different positions on the receiving apparatus. 7. A mobile crane having an undercarriage and a superstructure rotatably mounted upon the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the undercarriage and having at least one ballasting cylinder arranged for receiving ballast from the undercarriage and moving the ballast onto the superstructure, wherein position of the at least one ballasting cylinder arranged for receiving the ballast from the undercarriage is variable such that the ballast is receivable from the undercarriage in positions of different distances from the axis of rotation of the superstructure, and said ballast receiving apparatus arranged at the undercarriage comprises projections arranged to receive complementary cutouts on plates of the ballast at different positions on the undercarriage.

Assignees

Inventors

Classifications

  • B66C23/76Primary

    and movable to take account of variations of load or of variations of length of jib · CPC title

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Frequently asked questions

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What does patent US10870561B2 cover?
The invention relates to a mobile crane having an undercarriage and a superstructure rotatable with respect to the undercarriage about an axis of rotation and having a ballast receiving apparatus arranged at the superstructure and having at least one ballasting cylinder for receiving ballast. In accordance with the invention, the position of the ballasting cylinders receiving the ballast is var…
Who is the assignee on this patent?
Liebherr Werk Ehingen
What technology area does this patent fall under?
Primary CPC classification B66C23/76. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Dec 22 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).