Patent · US Active

Earth working machine having a positive connection between the rotating working assembly and its rotary bearing

US11655598B2 · kind B2 · utility

0Cited by

11References

16Claims

0Family size

Assignee

Wirtgen GmbH

Inventors

Hardy Wilhelmi · Dattenberg, DE
Karsten Buhr · Willroth, DE
Andreas Salz · Linz, DE
Sascha Spöth · Heistenbach, DE

Key dates

Filing date	Feb 9, 2021
Grant date	May 23, 2023
Priority date	—
Expiry date	Aug 8, 2041

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C47/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An earth working machine includes a support structure and a working assembly mounted on the support structure so as to be rotatable about a drive axis. An assembly-side bearing configuration is connected to the working assembly and a structure-side bearing configuration is connected to the support structure. The assembly-side bearing configuration includes a driver configuration having a driver surface facing in a first circumferential direction and the structure-side bearing configuration includes a driver counterpart configuration having a driver counterpart surface facing in a second circumferential direction opposite to the first, the movement spaces of the driver surface and of the driver counterpart surface about the drive axis overlapping one another.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.